From fc513854831a06dde55319be67c42a8f71de0e8f Mon Sep 17 00:00:00 2001
From: David Sun <sunzheng.david@gmail.com>
Date: Fri, 23 Sep 2011 07:29:21 +0000
Subject: [PATCH] First Commit

---
 README                                        |    3 +
 src/org/htmlcleaner/.svn/all-wcprops          |  227 +++
 src/org/htmlcleaner/.svn/entries              | 1286 +++++++++++++++++
 .../.svn/text-base/BaseToken.java.svn-base    |   52 +
 .../BrowserCompactXmlSerializer.java.svn-base |  102 ++
 .../text-base/CleanerProperties.java.svn-base |  260 ++++
 .../CleanerTransformations.java.svn-base      |   68 +
 .../.svn/text-base/CommandLine.java.svn-base  |  326 +++++
 .../.svn/text-base/CommentNode.java.svn-base  |   72 +
 .../CompactHtmlSerializer.java.svn-base       |  109 ++
 .../CompactXmlSerializer.java.svn-base        |   83 ++
 .../ConfigFileTagProvider.java.svn-base       |  244 ++++
 .../.svn/text-base/ContentNode.java.svn-base  |   71 +
 .../DefaultTagProvider.java.svn-base          |  492 +++++++
 .../.svn/text-base/DoctypeToken.java.svn-base |  134 ++
 .../text-base/DomSerializer.java.svn-base     |  143 ++
 .../.svn/text-base/EndTagToken.java.svn-base  |   63 +
 .../.svn/text-base/HtmlCleaner.java.svn-base  |  884 +++++++++++
 .../HtmlCleanerException.java.svn-base        |   62 +
 .../text-base/HtmlCleanerForAnt.java.svn-base |  343 +++++
 .../.svn/text-base/HtmlNode.java.svn-base     |    7 +
 .../text-base/HtmlSerializer.java.svn-base    |  216 +++
 .../text-base/HtmlTokenizer.java.svn-base     |  813 +++++++++++
 .../text-base/ITagInfoProvider.java.svn-base  |   52 +
 .../text-base/JDomSerializer.java.svn-base    |  161 +++
 .../PrettyHtmlSerializer.java.svn-base        |  212 +++
 .../PrettyXmlSerializer.java.svn-base         |  178 +++
 .../.svn/text-base/Serializer.java.svn-base   |  263 ++++
 .../SimpleHtmlSerializer.java.svn-base        |   68 +
 .../SimpleXmlSerializer.java.svn-base         |   69 +
 .../text-base/SpecialEntity.java.svn-base     |  377 +++++
 .../.svn/text-base/TagInfo.java.svn-base      |  389 +++++
 .../.svn/text-base/TagNode.java.svn-base      |  714 +++++++++
 .../text-base/TagNodeVisitor.java.svn-base    |   16 +
 .../.svn/text-base/TagToken.java.svn-base     |   65 +
 .../text-base/TagTransformation.java.svn-base |  134 ++
 .../.svn/text-base/Utils.java.svn-base        |  480 ++++++
 .../.svn/text-base/XPather.java.svn-base      |  586 ++++++++
 .../text-base/XPatherException.java.svn-base  |   62 +
 .../text-base/XmlSerializer.java.svn-base     |  230 +++
 src/org/htmlcleaner/BaseToken.java            |   67 +
 .../BrowserCompactXmlSerializer.java          |  120 ++
 src/org/htmlcleaner/CleanerProperties.java    |  277 ++++
 .../htmlcleaner/CleanerTransformations.java   |   84 ++
 src/org/htmlcleaner/CommentNode.java          |   86 ++
 .../htmlcleaner/CompactHtmlSerializer.java    |  131 ++
 src/org/htmlcleaner/CompactXmlSerializer.java |  100 ++
 src/org/htmlcleaner/ContentNode.java          |   88 ++
 src/org/htmlcleaner/DefaultTagProvider.java   |  522 +++++++
 src/org/htmlcleaner/DoctypeToken.java         |  146 ++
 src/org/htmlcleaner/DomSerializer.java        |  157 ++
 src/org/htmlcleaner/EndTagToken.java          |   80 +
 src/org/htmlcleaner/FastHtmlSerializer.java   |   64 +
 src/org/htmlcleaner/HtmlCleaner.java          |  932 ++++++++++++
 src/org/htmlcleaner/HtmlCleanerException.java |   79 +
 src/org/htmlcleaner/HtmlNode.java             |   23 +
 src/org/htmlcleaner/HtmlSerializer.java       |  236 +++
 src/org/htmlcleaner/HtmlTokenizer.java        |  836 +++++++++++
 src/org/htmlcleaner/ITagInfoProvider.java     |   66 +
 src/org/htmlcleaner/PrettyHtmlSerializer.java |  233 +++
 src/org/htmlcleaner/Serializer.java           |  338 +++++
 src/org/htmlcleaner/SimpleHtmlSerializer.java |   86 ++
 src/org/htmlcleaner/SimpleXmlSerializer.java  |   87 ++
 src/org/htmlcleaner/SpecialEntity.java        |  398 +++++
 src/org/htmlcleaner/TagInfo.java              |  406 ++++++
 src/org/htmlcleaner/TagNode.java              |  765 ++++++++++
 src/org/htmlcleaner/TagNodeVisitor.java       |   36 +
 src/org/htmlcleaner/TagToken.java             |   81 ++
 src/org/htmlcleaner/TagTransformation.java    |  164 +++
 src/org/htmlcleaner/Utils.java                |  519 +++++++
 src/org/htmlcleaner/XPather.java              |  626 ++++++++
 src/org/htmlcleaner/XPatherException.java     |   80 +
 src/org/htmlcleaner/XmlSerializer.java        |  254 ++++
 73 files changed, 18283 insertions(+)
 create mode 100644 README
 create mode 100644 src/org/htmlcleaner/.svn/all-wcprops
 create mode 100644 src/org/htmlcleaner/.svn/entries
 create mode 100644 src/org/htmlcleaner/.svn/text-base/BaseToken.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/BrowserCompactXmlSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/CleanerProperties.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/CleanerTransformations.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/CommandLine.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/CommentNode.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/CompactHtmlSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/CompactXmlSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/ConfigFileTagProvider.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/ContentNode.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/DefaultTagProvider.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/DoctypeToken.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/DomSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/EndTagToken.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/HtmlCleaner.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/HtmlCleanerException.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/HtmlCleanerForAnt.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/HtmlNode.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/HtmlSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/HtmlTokenizer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/ITagInfoProvider.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/JDomSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/PrettyHtmlSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/PrettyXmlSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/Serializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/SimpleHtmlSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/SimpleXmlSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/SpecialEntity.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/TagInfo.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/TagNode.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/TagNodeVisitor.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/TagToken.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/TagTransformation.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/Utils.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/XPather.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/XPatherException.java.svn-base
 create mode 100644 src/org/htmlcleaner/.svn/text-base/XmlSerializer.java.svn-base
 create mode 100644 src/org/htmlcleaner/BaseToken.java
 create mode 100644 src/org/htmlcleaner/BrowserCompactXmlSerializer.java
 create mode 100644 src/org/htmlcleaner/CleanerProperties.java
 create mode 100644 src/org/htmlcleaner/CleanerTransformations.java
 create mode 100644 src/org/htmlcleaner/CommentNode.java
 create mode 100644 src/org/htmlcleaner/CompactHtmlSerializer.java
 create mode 100644 src/org/htmlcleaner/CompactXmlSerializer.java
 create mode 100644 src/org/htmlcleaner/ContentNode.java
 create mode 100644 src/org/htmlcleaner/DefaultTagProvider.java
 create mode 100644 src/org/htmlcleaner/DoctypeToken.java
 create mode 100644 src/org/htmlcleaner/DomSerializer.java
 create mode 100644 src/org/htmlcleaner/EndTagToken.java
 create mode 100644 src/org/htmlcleaner/FastHtmlSerializer.java
 create mode 100644 src/org/htmlcleaner/HtmlCleaner.java
 create mode 100644 src/org/htmlcleaner/HtmlCleanerException.java
 create mode 100644 src/org/htmlcleaner/HtmlNode.java
 create mode 100644 src/org/htmlcleaner/HtmlSerializer.java
 create mode 100644 src/org/htmlcleaner/HtmlTokenizer.java
 create mode 100644 src/org/htmlcleaner/ITagInfoProvider.java
 create mode 100644 src/org/htmlcleaner/PrettyHtmlSerializer.java
 create mode 100644 src/org/htmlcleaner/Serializer.java
 create mode 100644 src/org/htmlcleaner/SimpleHtmlSerializer.java
 create mode 100644 src/org/htmlcleaner/SimpleXmlSerializer.java
 create mode 100644 src/org/htmlcleaner/SpecialEntity.java
 create mode 100644 src/org/htmlcleaner/TagInfo.java
 create mode 100644 src/org/htmlcleaner/TagNode.java
 create mode 100644 src/org/htmlcleaner/TagNodeVisitor.java
 create mode 100644 src/org/htmlcleaner/TagToken.java
 create mode 100644 src/org/htmlcleaner/TagTransformation.java
 create mode 100644 src/org/htmlcleaner/Utils.java
 create mode 100644 src/org/htmlcleaner/XPather.java
 create mode 100644 src/org/htmlcleaner/XPatherException.java
 create mode 100644 src/org/htmlcleaner/XmlSerializer.java

diff --git a/README b/README
new file mode 100644
index 0000000..09e792b
--- /dev/null
+++ b/README
@@ -0,0 +1,3 @@
+HtmlCleaner is a project originally developed by Vladimir Nikic (http://htmlcleaner.sourceforge.net/).
+
+This version is modified by Zheng Sun.
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/all-wcprops b/src/org/htmlcleaner/.svn/all-wcprops
new file mode 100644
index 0000000..ef0048b
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/all-wcprops
@@ -0,0 +1,227 @@
+K 25
+svn:wc:ra_dav:version-url
+V 69
+/svnroot/htmlcleaner/!svn/ver/182/trunk/src/main/java/org/htmlcleaner
+END
+Utils.java
+K 25
+svn:wc:ra_dav:version-url
+V 80
+/svnroot/htmlcleaner/!svn/ver/178/trunk/src/main/java/org/htmlcleaner/Utils.java
+END
+PrettyXmlSerializer.java
+K 25
+svn:wc:ra_dav:version-url
+V 94
+/svnroot/htmlcleaner/!svn/ver/179/trunk/src/main/java/org/htmlcleaner/PrettyXmlSerializer.java
+END
+SimpleXmlSerializer.java
+K 25
+svn:wc:ra_dav:version-url
+V 94
+/svnroot/htmlcleaner/!svn/ver/178/trunk/src/main/java/org/htmlcleaner/SimpleXmlSerializer.java
+END
+BrowserCompactXmlSerializer.java
+K 25
+svn:wc:ra_dav:version-url
+V 102
+/svnroot/htmlcleaner/!svn/ver/178/trunk/src/main/java/org/htmlcleaner/BrowserCompactXmlSerializer.java
+END
+HtmlCleanerForAnt.java
+K 25
+svn:wc:ra_dav:version-url
+V 92
+/svnroot/htmlcleaner/!svn/ver/178/trunk/src/main/java/org/htmlcleaner/HtmlCleanerForAnt.java
+END
+CommentNode.java
+K 25
+svn:wc:ra_dav:version-url
+V 86
+/svnroot/htmlcleaner/!svn/ver/178/trunk/src/main/java/org/htmlcleaner/CommentNode.java
+END
+ITagInfoProvider.java
+K 25
+svn:wc:ra_dav:version-url
+V 91
+/svnroot/htmlcleaner/!svn/ver/179/trunk/src/main/java/org/htmlcleaner/ITagInfoProvider.java
+END
+BaseToken.java
+K 25
+svn:wc:ra_dav:version-url
+V 84
+/svnroot/htmlcleaner/!svn/ver/179/trunk/src/main/java/org/htmlcleaner/BaseToken.java
+END
+TagNode.java
+K 25
+svn:wc:ra_dav:version-url
+V 82
+/svnroot/htmlcleaner/!svn/ver/181/trunk/src/main/java/org/htmlcleaner/TagNode.java
+END
+CleanerTransformations.java
+K 25
+svn:wc:ra_dav:version-url
+V 97
+/svnroot/htmlcleaner/!svn/ver/143/trunk/src/main/java/org/htmlcleaner/CleanerTransformations.java
+END
+XmlSerializer.java
+K 25
+svn:wc:ra_dav:version-url
+V 88
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+END
+DefaultTagProvider.java
+K 25
+svn:wc:ra_dav:version-url
+V 93
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+END
+HtmlTokenizer.java
+K 25
+svn:wc:ra_dav:version-url
+V 88
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+END
+TagNodeVisitor.java
+K 25
+svn:wc:ra_dav:version-url
+V 89
+/svnroot/htmlcleaner/!svn/ver/152/trunk/src/main/java/org/htmlcleaner/TagNodeVisitor.java
+END
+CompactXmlSerializer.java
+K 25
+svn:wc:ra_dav:version-url
+V 95
+/svnroot/htmlcleaner/!svn/ver/178/trunk/src/main/java/org/htmlcleaner/CompactXmlSerializer.java
+END
+TagTransformation.java
+K 25
+svn:wc:ra_dav:version-url
+V 92
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+END
+EndTagToken.java
+K 25
+svn:wc:ra_dav:version-url
+V 86
+/svnroot/htmlcleaner/!svn/ver/179/trunk/src/main/java/org/htmlcleaner/EndTagToken.java
+END
+CompactHtmlSerializer.java
+K 25
+svn:wc:ra_dav:version-url
+V 96
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+END
+PrettyHtmlSerializer.java
+K 25
+svn:wc:ra_dav:version-url
+V 95
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+END
+SimpleHtmlSerializer.java
+K 25
+svn:wc:ra_dav:version-url
+V 95
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+END
+DoctypeToken.java
+K 25
+svn:wc:ra_dav:version-url
+V 87
+/svnroot/htmlcleaner/!svn/ver/179/trunk/src/main/java/org/htmlcleaner/DoctypeToken.java
+END
+Serializer.java
+K 25
+svn:wc:ra_dav:version-url
+V 85
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+END
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+END
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+K 25
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+V 83
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+END
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+K 25
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+V 96
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+END
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+END
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+END
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+END
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+svn:wc:ra_dav:version-url
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+END
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+END
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+K 25
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+V 91
+/svnroot/htmlcleaner/!svn/ver/178/trunk/src/main/java/org/htmlcleaner/XPatherException.java
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+/svnroot/htmlcleaner/!svn/ver/182/trunk/src/main/java/org/htmlcleaner/HtmlCleaner.java
+END
diff --git a/src/org/htmlcleaner/.svn/entries b/src/org/htmlcleaner/.svn/entries
new file mode 100644
index 0000000..df62621
--- /dev/null
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+8665
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+
+
+
+
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+13538
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+
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+
+
+
+
+
+
+
+
+2289
+
+HtmlSerializer.java
+file
+
+
+
+
+2011-08-31T14:45:35.430737Z
+2b6f73b881b1a5063b397ca2db13846b
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+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+8872
+
+HtmlCleaner.java
+file
+
+
+
+
+2011-08-31T14:45:35.430737Z
+1190145da23fcc0ca74b5b3baa5142f4
+2010-12-28T08:38:07.990619Z
+182
+vnikic
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+
+
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+
+
+
+
+
+
+
+
+34203
+
diff --git a/src/org/htmlcleaner/.svn/text-base/BaseToken.java.svn-base b/src/org/htmlcleaner/.svn/text-base/BaseToken.java.svn-base
new file mode 100644
index 0000000..63bff10
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/BaseToken.java.svn-base
@@ -0,0 +1,52 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * <p>
+ * 	Base token interface. Tokens are individual entities recognized by HTML parser.
+ * </p>
+ */
+public interface BaseToken {
+	
+	public void serialize(Serializer serializer, Writer writer) throws IOException;
+	
+}
diff --git a/src/org/htmlcleaner/.svn/text-base/BrowserCompactXmlSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/BrowserCompactXmlSerializer.java.svn-base
new file mode 100644
index 0000000..91fa360
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/BrowserCompactXmlSerializer.java.svn-base
@@ -0,0 +1,102 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.Writer;
+import java.io.IOException;
+import java.util.List;
+import java.util.ListIterator;
+
+/**
+ * <p>
+ *  Broswer compact XML serializer - creates resulting XML by stripping whitespaces wherever possible,
+ *  but preserving single whitespace where at least one exists. This behaviour is well suited
+ *  for web-browsers, which usualy treat multiple whitespaces as single one, but make diffrence
+ *  between single whitespace and empty text.
+ * </p>
+ */
+public class BrowserCompactXmlSerializer extends XmlSerializer {
+
+	public BrowserCompactXmlSerializer(CleanerProperties props) {
+		super(props);
+	}
+
+    protected void serialize(TagNode tagNode, Writer writer) throws IOException {
+        serializeOpenTag(tagNode, writer, false);
+
+        List tagChildren = tagNode.getChildren();
+        if ( !isMinimizedTagSyntax(tagNode) ) {
+            ListIterator childrenIt = tagChildren.listIterator();
+            while ( childrenIt.hasNext() ) {
+                Object item = childrenIt.next();
+                if (item instanceof ContentNode) {
+                    String content = item.toString();
+                    boolean startsWithSpace = content.length() > 0 && Character.isWhitespace( content.charAt(0) );
+                    boolean endsWithSpace = content.length() > 1 && Character.isWhitespace( content.charAt(content.length() - 1) );
+                    content = dontEscape(tagNode) ? content.trim().replaceAll("]]>", "]]&gt;") : escapeXml(content.trim());
+
+                    if (startsWithSpace) {
+                        writer.write(' ');
+                    }
+
+                    if (content.length() != 0) {
+                        writer.write(content);
+                        if (endsWithSpace) {
+                            writer.write(' ');
+                        }
+                    }
+
+                    if (childrenIt.hasNext()) {
+                        if ( !Utils.isWhitespaceString(childrenIt.next()) ) {
+                            writer.write("\n");
+                        }
+                        childrenIt.previous();
+                    }
+                } else if (item instanceof CommentNode) {
+                    String content = ((CommentNode) item).getCommentedContent().trim();
+                    writer.write(content);
+                } else if (item instanceof BaseToken) {
+                    ((BaseToken)item).serialize(this, writer);
+                }
+            }
+
+            serializeEndTag(tagNode, writer, false);
+        }
+	}
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/CleanerProperties.java.svn-base b/src/org/htmlcleaner/.svn/text-base/CleanerProperties.java.svn-base
new file mode 100644
index 0000000..2f54823
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/CleanerProperties.java.svn-base
@@ -0,0 +1,260 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+/**
+ * Properties defining cleaner's behaviour
+ */
+public class CleanerProperties {
+
+    public static final String BOOL_ATT_SELF = "self";
+    public static final String BOOL_ATT_EMPTY = "empty";
+    public static final String BOOL_ATT_TRUE = "true";
+
+    ITagInfoProvider tagInfoProvider = null;
+
+    boolean advancedXmlEscape = true;
+    boolean transResCharsToNCR = false;
+    boolean useCdataForScriptAndStyle = true;
+    boolean translateSpecialEntities = true;
+    boolean transSpecialEntitiesToNCR = false;
+    boolean recognizeUnicodeChars = true;
+    boolean omitUnknownTags = false;
+    boolean treatUnknownTagsAsContent = false;
+    boolean omitDeprecatedTags = false;
+    boolean treatDeprecatedTagsAsContent = false;
+    boolean omitComments = false;
+    boolean omitXmlDeclaration = false;
+    boolean omitDoctypeDeclaration = true;
+    boolean omitHtmlEnvelope = false;
+    boolean useEmptyElementTags = true;
+    boolean allowMultiWordAttributes = true;
+    boolean allowHtmlInsideAttributes = false;
+    boolean ignoreQuestAndExclam = true;
+    boolean namespacesAware = true;
+    String hyphenReplacementInComment = "=";
+    String pruneTags = null;
+    String booleanAttributeValues = BOOL_ATT_SELF;
+
+    public ITagInfoProvider getTagInfoProvider() {
+        return tagInfoProvider;
+    }
+
+    public boolean isAdvancedXmlEscape() {
+        return advancedXmlEscape;
+    }
+
+    public void setAdvancedXmlEscape(boolean advancedXmlEscape) {
+        this.advancedXmlEscape = advancedXmlEscape;
+    }
+
+    public boolean isTransResCharsToNCR() {
+        return transResCharsToNCR;
+    }
+
+    public void setTransResCharsToNCR(boolean transResCharsToNCR) {
+        this.transResCharsToNCR = transResCharsToNCR;
+    }
+
+    public boolean isUseCdataForScriptAndStyle() {
+        return useCdataForScriptAndStyle;
+    }
+
+    public void setUseCdataForScriptAndStyle(boolean useCdataForScriptAndStyle) {
+        this.useCdataForScriptAndStyle = useCdataForScriptAndStyle;
+    }
+
+    public boolean isTranslateSpecialEntities() {
+        return translateSpecialEntities;
+    }
+
+    public void setTranslateSpecialEntities(boolean translateSpecialEntities) {
+        this.translateSpecialEntities = translateSpecialEntities;
+    }
+
+    public boolean isTransSpecialEntitiesToNCR() {
+        return transSpecialEntitiesToNCR;
+    }
+
+    public void setTransSpecialEntitiesToNCR(boolean transSpecialEntitiesToNCR) {
+        this.transSpecialEntitiesToNCR = transSpecialEntitiesToNCR;
+    }
+
+    public boolean isRecognizeUnicodeChars() {
+        return recognizeUnicodeChars;
+    }
+
+    public void setRecognizeUnicodeChars(boolean recognizeUnicodeChars) {
+        this.recognizeUnicodeChars = recognizeUnicodeChars;
+    }
+
+    public boolean isOmitUnknownTags() {
+        return omitUnknownTags;
+    }
+
+    public void setOmitUnknownTags(boolean omitUnknownTags) {
+        this.omitUnknownTags = omitUnknownTags;
+    }
+
+    public boolean isTreatUnknownTagsAsContent() {
+        return treatUnknownTagsAsContent;
+    }
+
+    public void setTreatUnknownTagsAsContent(boolean treatUnknownTagsAsContent) {
+        this.treatUnknownTagsAsContent = treatUnknownTagsAsContent;
+    }
+
+    public boolean isOmitDeprecatedTags() {
+        return omitDeprecatedTags;
+    }
+
+    public void setOmitDeprecatedTags(boolean omitDeprecatedTags) {
+        this.omitDeprecatedTags = omitDeprecatedTags;
+    }
+
+    public boolean isTreatDeprecatedTagsAsContent() {
+        return treatDeprecatedTagsAsContent;
+    }
+
+    public void setTreatDeprecatedTagsAsContent(boolean treatDeprecatedTagsAsContent) {
+        this.treatDeprecatedTagsAsContent = treatDeprecatedTagsAsContent;
+    }
+
+    public boolean isOmitComments() {
+        return omitComments;
+    }
+
+    public void setOmitComments(boolean omitComments) {
+        this.omitComments = omitComments;
+    }
+
+    public boolean isOmitXmlDeclaration() {
+        return omitXmlDeclaration;
+    }
+
+    public void setOmitXmlDeclaration(boolean omitXmlDeclaration) {
+        this.omitXmlDeclaration = omitXmlDeclaration;
+    }
+
+    public boolean isOmitDoctypeDeclaration() {
+        return omitDoctypeDeclaration;
+    }
+
+    public void setOmitDoctypeDeclaration(boolean omitDoctypeDeclaration) {
+        this.omitDoctypeDeclaration = omitDoctypeDeclaration;
+    }
+
+    public boolean isOmitHtmlEnvelope() {
+        return omitHtmlEnvelope;
+    }
+
+    public void setOmitHtmlEnvelope(boolean omitHtmlEnvelope) {
+        this.omitHtmlEnvelope = omitHtmlEnvelope;
+    }
+
+    public boolean isUseEmptyElementTags() {
+        return useEmptyElementTags;
+    }
+
+    public void setUseEmptyElementTags(boolean useEmptyElementTags) {
+        this.useEmptyElementTags = useEmptyElementTags;
+    }
+
+    public boolean isAllowMultiWordAttributes() {
+        return allowMultiWordAttributes;
+    }
+
+    public void setAllowMultiWordAttributes(boolean allowMultiWordAttributes) {
+        this.allowMultiWordAttributes = allowMultiWordAttributes;
+    }
+
+    public boolean isAllowHtmlInsideAttributes() {
+        return allowHtmlInsideAttributes;
+    }
+
+    public void setAllowHtmlInsideAttributes(boolean allowHtmlInsideAttributes) {
+        this.allowHtmlInsideAttributes = allowHtmlInsideAttributes;
+    }
+
+    public boolean isIgnoreQuestAndExclam() {
+        return ignoreQuestAndExclam;
+    }
+
+    public void setIgnoreQuestAndExclam(boolean ignoreQuestAndExclam) {
+        this.ignoreQuestAndExclam = ignoreQuestAndExclam;
+    }
+
+    public boolean isNamespacesAware() {
+        return namespacesAware;
+    }
+
+    public void setNamespacesAware(boolean namespacesAware) {
+        this.namespacesAware = namespacesAware;
+    }
+
+    public String getHyphenReplacementInComment() {
+        return hyphenReplacementInComment;
+    }
+
+    public void setHyphenReplacementInComment(String hyphenReplacementInComment) {
+        this.hyphenReplacementInComment = hyphenReplacementInComment;
+    }
+
+    public String getPruneTags() {
+        return pruneTags;
+    }
+
+    public void setPruneTags(String pruneTags) {
+        this.pruneTags = pruneTags;
+    }
+
+    public String getBooleanAttributeValues() {
+        return booleanAttributeValues;
+    }
+
+    public void setBooleanAttributeValues(String booleanAttributeValues) {
+        if ( BOOL_ATT_SELF.equalsIgnoreCase(booleanAttributeValues) ||
+             BOOL_ATT_EMPTY.equalsIgnoreCase(booleanAttributeValues) ||
+             BOOL_ATT_TRUE.equalsIgnoreCase(booleanAttributeValues) ) {
+            this.booleanAttributeValues = booleanAttributeValues.toLowerCase();
+        } else {
+            this.booleanAttributeValues = BOOL_ATT_SELF;    
+        }
+    }
+    
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/CleanerTransformations.java.svn-base b/src/org/htmlcleaner/.svn/text-base/CleanerTransformations.java.svn-base
new file mode 100644
index 0000000..bab554c
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/CleanerTransformations.java.svn-base
@@ -0,0 +1,68 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Contains transformation collection.
+ */
+public class CleanerTransformations {
+
+    private Map mappings = new HashMap();
+
+    /**
+     * Adds specified tag transformation to the collection.
+     * @param tagTransformation
+     */
+    public void addTransformation(TagTransformation tagTransformation) {
+        if (tagTransformation != null) {
+            mappings.put( tagTransformation.getSourceTag(), tagTransformation );
+        }
+    }
+
+    public boolean hasTransformationForTag(String tagName)  {
+        return tagName != null && mappings.containsKey(tagName.toLowerCase());
+    }
+
+    public TagTransformation getTransformation(String tagName) {
+        return tagName != null ? (TagTransformation) mappings.get(tagName.toLowerCase()) : null; 
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/CommandLine.java.svn-base b/src/org/htmlcleaner/.svn/text-base/CommandLine.java.svn-base
new file mode 100644
index 0000000..b4e790f
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/CommandLine.java.svn-base
@@ -0,0 +1,326 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+	All rights reserved.
+
+	Redistribution and use of this software in source and binary forms,
+	with or without modification, are permitted provided that the following
+	conditions are met:
+
+	* Redistributions of source code must retain the above
+	  copyright notice, this list of conditions and the
+	  following disclaimer.
+
+	* Redistributions in binary form must reproduce the above
+	  copyright notice, this list of conditions and the
+	  following disclaimer in the documentation and/or other
+	  materials provided with the distribution.
+
+	* The name of HtmlCleaner may not be used to endorse or promote
+	  products derived from this software without specific prior
+	  written permission.
+
+	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+	AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+	ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+	LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+	CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+	POSSIBILITY OF SUCH DAMAGE.
+
+	You can contact Vladimir Nikic by sending e-mail to
+	nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+	subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.FileOutputStream;
+import java.net.URL;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.Iterator;
+
+/**
+ * <p>Command line usage class.</p>
+ */
+public class CommandLine {
+
+    private static String getArgValue(String[] args, String name) {
+        for (int i = 0; i < args.length; i++) {
+            String curr = args[i];
+            int eqIndex = curr.indexOf('=');
+            if (eqIndex >= 0) {
+                String argName = curr.substring(0, eqIndex).trim();
+                String argValue = curr.substring(eqIndex+1).trim();
+
+                if (argName.toLowerCase().startsWith(name.toLowerCase())) {
+                    return argValue;
+                }
+            }
+        }
+
+        return "";
+    }
+
+    private static boolean toBoolean(String s) {
+        return s != null && ( "on".equalsIgnoreCase(s) || "true".equalsIgnoreCase(s) || "yes".equalsIgnoreCase(s) );
+    }
+
+    public static void main(String[] args) throws IOException, XPatherException {
+        String source = getArgValue(args, "src");
+        if ( "".equals(source) ) {
+            System.err.println("Usage: java -jar htmlcleanerXX.jar src = <url | file> [incharset = <charset>] " +
+                               "[dest = <file>] [outcharset = <charset>] [taginfofile=<file>] [options...]");
+            System.err.println("");
+            System.err.println("where options include:");
+            System.err.println("    outputtype=simple* | compact | browser-compact | pretty | htmlsimple | htmlcompact | htmlpretty");
+            System.err.println("    advancedxmlescape=true* | false");
+            System.err.println("    transrescharstoncr=true | false*");
+            System.err.println("    usecdata=true* | false");
+            System.err.println("    specialentities=true* | false");
+            System.err.println("    transspecialentitiestoncr=true | false*");
+            System.err.println("    unicodechars=true* | false");
+            System.err.println("    omitunknowntags=true | false*");
+            System.err.println("    treatunknowntagsascontent=true | false*");
+            System.err.println("    omitdeprtags=true | false*");
+            System.err.println("    treatdeprtagsascontent=true | false*");
+            System.err.println("    omitcomments=true | false*");
+            System.err.println("    omitxmldecl=true | false*");
+            System.err.println("    omitdoctypedecl=true* | false");
+            System.err.println("    useemptyelementtags=true* | false");
+            System.err.println("    allowmultiwordattributes=true* | false");
+            System.err.println("    allowhtmlinsideattributes=true | false*");
+            System.err.println("    ignoreqe=true* | false");
+            System.err.println("    namespacesaware=true* | false");
+            System.err.println("    hyphenreplacement=<string value> [=]");
+            System.err.println("    prunetags=<string value> []");
+            System.err.println("    booleanatts=self* | empty | true");
+            System.err.println("    nodebyxpath=<xpath expression>");
+            System.err.println("    omitenvelope=true | false*");
+            System.err.println("    t:<sourcetagX>[=<desttag>[,<preserveatts>]]");
+            System.err.println("    t:<sourcetagX>.<destattrY>[=<template>]");
+            System.exit(1);
+        }
+
+        String inCharset = getArgValue(args, "incharset");
+        if ("".equals(inCharset)) {
+            inCharset = HtmlCleaner.DEFAULT_CHARSET;
+        }
+
+        String outCharset = getArgValue(args, "outcharset");
+        if ("".equals(outCharset)) {
+            outCharset = HtmlCleaner.DEFAULT_CHARSET;
+        }
+
+        String destination = getArgValue(args, "dest");
+        String outputType = getArgValue(args, "outputtype");
+        String advancedXmlEscape = getArgValue(args, "advancedxmlescape");
+        String transResCharsToNCR = getArgValue(args, "transrescharstoncr");
+        String useCData = getArgValue(args, "usecdata");
+        String translateSpecialEntities = getArgValue(args, "specialentities");
+        String transSpecialEntitiesToNCR = getArgValue(args, "transspecialentitiestoncr");
+        String unicodeChars = getArgValue(args, "unicodechars");
+        String omitUnknownTags = getArgValue(args, "omitunknowntags");
+        String treatUnknownTagsAsContent = getArgValue(args, "treatunknowntagsascontent");
+        String omitDeprecatedTags = getArgValue(args, "omitdeprtags");
+        String treatDeprecatedTagsAsContent = getArgValue(args, "treatdeprtagsascontent");
+        String omitComments = getArgValue(args, "omitcomments");
+        String omitXmlDeclaration = getArgValue(args, "omitxmldecl");
+        String omitDoctypeDeclaration = getArgValue(args, "omitdoctypedecl");
+        String omitHtmlEnvelope = getArgValue(args, "omithtmlenvelope");
+        String useEmptyElementTags = getArgValue(args, "useemptyelementtags");
+        String allowMultiWordAttributes = getArgValue(args, "allowmultiwordattributes");
+        String allowHtmlInsideAttributes = getArgValue(args, "allowhtmlinsideattributes");
+        String ignoreQuestAndExclam = getArgValue(args, "ignoreqe");
+        String namespacesAware= getArgValue(args, "namespacesaware");
+        String commentHyphen = getArgValue(args, "hyphenreplacement");
+        String pruneTags = getArgValue(args, "prunetags");
+        String booleanAtts = getArgValue(args, "booleanatts");
+        String nodeByXPath = getArgValue(args, "nodebyxpath");
+
+        boolean omitEnvelope = toBoolean( getArgValue(args, "omitenvelope") );
+
+        HtmlCleaner cleaner;
+
+        String tagInfoFile = getArgValue(args, "taginfofile");
+        if ( !"".equals(tagInfoFile) ) {
+            cleaner = new HtmlCleaner(new ConfigFileTagProvider(new File(tagInfoFile)));
+        } else {
+            cleaner = new HtmlCleaner();
+        }
+
+        final CleanerProperties props = cleaner.getProperties();
+
+        if ( !"".equals(omitUnknownTags) ) {
+            props.setOmitUnknownTags( toBoolean(omitUnknownTags) );
+        }
+
+        if ( !"".equals(treatUnknownTagsAsContent) ) {
+            props.setTreatUnknownTagsAsContent( toBoolean(treatUnknownTagsAsContent) );
+        }
+
+        if ( !"".equals(omitDeprecatedTags) ) {
+            props.setOmitDeprecatedTags( toBoolean(omitDeprecatedTags) );
+        }
+
+        if ( !"".equals(treatDeprecatedTagsAsContent) ) {
+            props.setTreatDeprecatedTagsAsContent( toBoolean(treatDeprecatedTagsAsContent) );
+        }
+
+        if ( !"".equals(advancedXmlEscape) ) {
+            props.setAdvancedXmlEscape( toBoolean(advancedXmlEscape) );
+        }
+
+        if ( !"".equals(transResCharsToNCR) ) {
+            props.setTransResCharsToNCR( toBoolean(transResCharsToNCR) );
+        }
+
+        if ( !"".equals(useCData) ) {
+            props.setUseCdataForScriptAndStyle( toBoolean(useCData) );
+        }
+
+        if ( !"".equals(translateSpecialEntities) ) {
+            props.setTranslateSpecialEntities( toBoolean(translateSpecialEntities) );
+        }
+
+        if ( !"".equals(transSpecialEntitiesToNCR) ) {
+            props.setTransSpecialEntitiesToNCR( toBoolean(transSpecialEntitiesToNCR) );
+        }
+
+        if ( !"".equals(unicodeChars) ) {
+            props.setRecognizeUnicodeChars( toBoolean(unicodeChars) );
+        }
+
+        if ( !"".equals(omitComments) ) {
+            props.setOmitComments( toBoolean(omitComments) );
+        }
+
+        if ( !"".equals(omitXmlDeclaration) ) {
+            props.setOmitXmlDeclaration( toBoolean(omitXmlDeclaration) );
+        }
+
+        if ( !"".equals(omitDoctypeDeclaration) ) {
+        	props.setOmitDoctypeDeclaration( toBoolean(omitDoctypeDeclaration) );
+        }
+
+        if ( !"".equals(omitHtmlEnvelope) ) {
+        	props.setOmitHtmlEnvelope( toBoolean(omitHtmlEnvelope) );
+        }
+
+        if ( !"".equals(useEmptyElementTags) ) {
+        	props.setUseEmptyElementTags( toBoolean(useEmptyElementTags) );
+        }
+
+        if ( !"".equals(allowMultiWordAttributes) ) {
+        	props.setAllowMultiWordAttributes( toBoolean(allowMultiWordAttributes) );
+        }
+
+        if ( !"".equals(allowHtmlInsideAttributes) ) {
+        	props.setAllowHtmlInsideAttributes( toBoolean(allowHtmlInsideAttributes) );
+        }
+
+        if ( !"".equals(ignoreQuestAndExclam) ) {
+        	props.setIgnoreQuestAndExclam( toBoolean(ignoreQuestAndExclam) );
+        }
+
+        if ( !"".equals(namespacesAware) ) {
+        	props.setNamespacesAware( toBoolean(namespacesAware) );
+        }
+
+        if ( !"".equals(commentHyphen) ) {
+            props.setHyphenReplacementInComment(commentHyphen);
+        }
+
+        if ( !"".equals(pruneTags) ) {
+            props.setPruneTags(pruneTags);
+        }
+
+        if ( !"".equals(booleanAtts) ) {
+            props.setBooleanAttributeValues(booleanAtts);
+        }
+
+        // collect transformation info
+        Map transInfos = new TreeMap();
+        for (int i = 0; i < args.length; i++) {
+            String arg = args[i];
+            if (arg.startsWith("t:") && arg.length() > 2) {
+                arg = arg.substring(2);
+                int index = arg.indexOf('=');
+                String key = index <= 0 ? arg : arg.substring(0, index);
+                String value = index <= 0 ? null : arg.substring(index + 1);
+                transInfos.put(key, value);
+            }
+        }
+        if (transInfos != null) {
+            CleanerTransformations transformations = new CleanerTransformations();
+            Iterator iterator = transInfos.entrySet().iterator();
+            while (iterator.hasNext()) {
+                Map.Entry entry = (Map.Entry) iterator.next();
+                String tag = (String) entry.getKey();
+                String value = (String) entry.getValue();
+                Utils.updateTagTransformations(transformations, tag, value);
+            }
+            cleaner.setTransformations(transformations);
+        }
+
+        long start = System.currentTimeMillis();
+
+        TagNode node;
+
+        String srcLowerCase = source.toLowerCase();
+        if ( srcLowerCase.startsWith("http://") || srcLowerCase.startsWith("https://") ) {
+            node = cleaner.clean(new URL(source), inCharset);
+        } else {
+            node = cleaner.clean(new File(source), inCharset);
+        }
+
+        // if user specifies XPath expresssion to choose node for serialization, then
+        // try to evaluate XPath and look for first TagNode instance in the resulting array
+        if ( !"".equals(nodeByXPath) ) {
+            final Object[] xpathResult = node.evaluateXPath(nodeByXPath);
+            int i;
+            for (i = 0; i < xpathResult.length; i++) {
+                if ( xpathResult[i] instanceof TagNode ) {
+                    node = (TagNode) xpathResult[i];
+                    System.out.println("Node successfully found by XPath.");
+                    break;
+                }
+            }
+            if (i == xpathResult.length) {
+                System.out.println("Node not found by XPath expression - whole html tree is going to be serialized!");
+            }
+        }
+
+        OutputStream out;
+        if ( destination == null || "".equals(destination.trim()) ) {
+            out = System.out;
+        } else {
+            out = new FileOutputStream(destination);
+        }
+
+        if ( "compact".equals(outputType) ) {
+            new CompactXmlSerializer(props).writeToStream(node, out, outCharset, omitEnvelope);
+        } else if ( "browser-compact".equals(outputType) ) {
+            new BrowserCompactXmlSerializer(props).writeToStream(node, out, outCharset, omitEnvelope);
+        } else if ( "pretty".equals(outputType) ) {
+            new PrettyXmlSerializer(props).writeToStream(node, out, outCharset, omitEnvelope);
+        } else if ( "htmlsimple".equals(outputType) ) {
+            new SimpleHtmlSerializer(props).writeToStream(node, out, outCharset, omitEnvelope);
+        } else if ( "htmlcompact".equals(outputType) ) {
+            new CompactHtmlSerializer(props).writeToStream(node, out, outCharset, omitEnvelope);
+        } else if ( "htmlpretty".equals(outputType) ) {
+            new PrettyHtmlSerializer(props).writeToStream(node, out, outCharset, omitEnvelope);
+        } else {
+            new SimpleXmlSerializer(props).writeToStream(node, out, outCharset, omitEnvelope);
+        }
+
+        System.out.println("Finished successfully in " + (System.currentTimeMillis() - start)+ "ms." );
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/CommentNode.java.svn-base b/src/org/htmlcleaner/.svn/text-base/CommentNode.java.svn-base
new file mode 100644
index 0000000..0d94fd9
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/CommentNode.java.svn-base
@@ -0,0 +1,72 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+import org.htmlcleaner.BaseToken;
+
+/**
+ * <p>HTML comment token.</p>
+ */
+public class CommentNode implements BaseToken, HtmlNode {
+
+    private StringBuilder content;
+
+    public CommentNode(String content) {
+        this.content = new StringBuilder(content);
+    }
+
+    public String getCommentedContent() {
+        return "<!--" + content + "-->";
+    }
+
+    public StringBuilder getContent() {
+        return content;
+    }
+
+    public String toString() {
+        return getCommentedContent();
+    }
+
+    public void serialize(Serializer serializer, Writer writer) throws IOException {
+    	writer.write( getCommentedContent() );
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/CompactHtmlSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/CompactHtmlSerializer.java.svn-base
new file mode 100644
index 0000000..f9fdbf7
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/CompactHtmlSerializer.java.svn-base
@@ -0,0 +1,109 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * <p>Compact HTML serializer - creates resulting HTML by stripping whitespaces wherever possible.</p>
+ */
+public class CompactHtmlSerializer extends HtmlSerializer {
+
+    private int openPreTags = 0;
+
+	public CompactHtmlSerializer(CleanerProperties props) {
+		super(props);
+	}
+
+    protected void serialize(TagNode tagNode, Writer writer) throws IOException {
+        boolean isPreTag = "pre".equalsIgnoreCase(tagNode.getName());
+        if (isPreTag) {
+            openPreTags++;
+        }
+
+        serializeOpenTag(tagNode, writer, false);
+
+        List tagChildren = tagNode.getChildren();
+        if ( !isMinimizedTagSyntax(tagNode) ) {
+            ListIterator childrenIt = tagChildren.listIterator();
+            while ( childrenIt.hasNext() ) {
+                Object item = childrenIt.next();
+                if (item instanceof ContentNode) {
+                    String content = item.toString();
+                    if (openPreTags > 0) {
+                        writer.write(content);
+                    } else {
+                        boolean startsWithSpace = content.length() > 0 && Character.isWhitespace( content.charAt(0) );
+                        boolean endsWithSpace = content.length() > 1 && Character.isWhitespace( content.charAt(content.length() - 1) );
+                        content = dontEscape(tagNode) ? content.trim() : escapeText(content.trim());
+
+                        if (startsWithSpace) {
+                            writer.write(' ');
+                        }
+
+                        if (content.length() != 0) {
+                            writer.write(content);
+                            if (endsWithSpace) {
+                                writer.write(' ');
+                            }
+                        }
+
+                        if (childrenIt.hasNext()) {
+                            if ( !Utils.isWhitespaceString(childrenIt.next()) ) {
+                                writer.write("\n");
+                            }
+                            childrenIt.previous();
+                        }
+                    }
+                } else if (item instanceof CommentNode) {
+                    String content = ((CommentNode) item).getCommentedContent().trim();
+                    writer.write(content);
+                } else if (item instanceof BaseToken) {
+                    ((BaseToken)item).serialize(this, writer);
+                }
+            }
+
+            serializeEndTag(tagNode, writer, false);
+            if (isPreTag) {
+                openPreTags--;
+            }
+        }
+	}
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/CompactXmlSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/CompactXmlSerializer.java.svn-base
new file mode 100644
index 0000000..5dcfce4
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/CompactXmlSerializer.java.svn-base
@@ -0,0 +1,83 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.util.*;
+
+/**
+ * <p>Compact XML serializer - creates resulting XML by stripping whitespaces.</p>
+ */
+public class CompactXmlSerializer extends XmlSerializer {
+
+	public CompactXmlSerializer(CleanerProperties props) {
+		super(props);
+	}
+
+    protected void serialize(TagNode tagNode, Writer writer) throws IOException {
+        serializeOpenTag(tagNode, writer, false);
+
+        List tagChildren = tagNode.getChildren();
+        if ( !isMinimizedTagSyntax(tagNode) ) {
+            ListIterator childrenIt = tagChildren.listIterator();
+            while ( childrenIt.hasNext() ) {
+                Object item = childrenIt.next();
+                if (item instanceof ContentNode) {
+                    String content = item.toString().trim();
+                    writer.write( dontEscape(tagNode) ? content.replaceAll("]]>", "]]&gt;") : escapeXml(content) );
+
+                    if (childrenIt.hasNext()) {
+                        if ( !Utils.isWhitespaceString(childrenIt.next()) ) {
+                            writer.write("\n");
+                        }
+                        childrenIt.previous();
+                    }
+                } else if (item instanceof CommentNode) {
+                    String content = ((CommentNode) item).getCommentedContent().trim();
+                    writer.write(content);
+                } else if (item instanceof BaseToken) {
+                    ((BaseToken)item).serialize(this, writer);
+                }
+            }
+
+            serializeEndTag(tagNode, writer, false);
+        }
+	}
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/ConfigFileTagProvider.java.svn-base b/src/org/htmlcleaner/.svn/text-base/ConfigFileTagProvider.java.svn-base
new file mode 100644
index 0000000..4f55ecf
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/ConfigFileTagProvider.java.svn-base
@@ -0,0 +1,244 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
+
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.parsers.SAXParser;
+import javax.xml.parsers.SAXParserFactory;
+import java.io.*;
+import java.util.HashMap;
+import java.util.Map;
+import java.net.URL;
+
+/**
+ * Default tag provider - reads XML file in specified format and creates tag infos
+ */
+public class ConfigFileTagProvider extends HashMap implements ITagInfoProvider {
+
+    // obtaining instance of the SAX parser factory
+    static SAXParserFactory parserFactory = SAXParserFactory.newInstance();
+    static {
+        parserFactory.setValidating(false);
+        parserFactory.setNamespaceAware(false);
+    }
+
+    // tells whether to generate code of the tag provider class based on XML configuration file
+    // to the standard output
+    private boolean generateCode = false;
+
+    private ConfigFileTagProvider() {
+    }
+
+    public ConfigFileTagProvider(InputSource inputSource) {
+        try {
+            new ConfigParser(this).parse(inputSource);
+        } catch (Exception e) {
+            throw new HtmlCleanerException("Error parsing tag configuration file!", e);
+        }
+    }
+
+    public ConfigFileTagProvider(File file) {
+        try {
+            new ConfigParser(this).parse(new InputSource(new FileReader(file)));
+        } catch (Exception e) {
+            throw new HtmlCleanerException("Error parsing tag configuration file!", e);
+        }
+    }
+
+    public ConfigFileTagProvider(URL url) {
+        try {
+            Object content = url.getContent();
+            if (content instanceof InputStream) {
+                InputStreamReader reader = new InputStreamReader((InputStream)content);
+                new ConfigParser(this).parse(new InputSource(reader));
+            }
+        } catch (Exception e) {
+            throw new HtmlCleanerException("Error parsing tag configuration file!", e);
+        }
+    }
+
+    public TagInfo getTagInfo(String tagName) {
+        return (TagInfo) get(tagName);
+    }
+
+    /**
+     * Generates code for tag provider class from specified configuration XML file.
+     * In order to create custom tag info provider, make config file and call this main method
+     * with the specified file. Output will be generated on the standard output. This way default
+     * tag provider (class DefaultTagProvider) is generated from default.xml which which is packaged
+     * in the source distribution.
+     *
+     * @param args
+     * @throws IOException
+     * @throws SAXException
+     * @throws ParserConfigurationException
+     */
+    public static void main(String[] args) throws IOException, SAXException, ParserConfigurationException {
+        final ConfigFileTagProvider provider = new ConfigFileTagProvider();
+        provider.generateCode = true;
+
+        File configFile = new File("default.xml");
+        String packagePath = "org.htmlcleaner";
+        String className = "DefaultTagProvider";
+
+        final ConfigParser parser = provider.new ConfigParser(provider);
+        System.out.println("package " + packagePath + ";");
+        System.out.println("import java.util.HashMap;");
+        System.out.println("public class " + className + " extends HashMap implements ITagInfoProvider {");
+        System.out.println("public " + className + "() {");
+        System.out.println("TagInfo tagInfo;");
+        parser.parse( new InputSource(new FileReader(configFile)) );
+        System.out.println("}");
+        System.out.println("}");
+    }
+
+
+    /**
+    * SAX parser for tag configuration files.
+    */
+    private class ConfigParser extends DefaultHandler {
+        private TagInfo tagInfo = null;
+        private String dependencyName = null;
+        private Map tagInfoMap;
+
+        ConfigParser(Map tagInfoMap) {
+            this.tagInfoMap = tagInfoMap;
+        }
+
+        public void parse(InputSource in) throws ParserConfigurationException, SAXException, IOException {
+            SAXParser parser = parserFactory.newSAXParser();
+            parser.parse(in, this);
+        }
+
+        public void characters(char[] ch, int start, int length) throws SAXException {
+            if (tagInfo != null) {
+                String value = new String(ch, start, length).trim();
+                if ( "fatal-tags".equals(dependencyName) ) {
+                    tagInfo.defineFatalTags(value);
+                    if (generateCode) {
+                        System.out.println("tagInfo.defineFatalTags(\"" + value + "\");");
+                    }
+                } else if ( "req-enclosing-tags".equals(dependencyName) ) {
+                    tagInfo.defineRequiredEnclosingTags(value);
+                    if (generateCode) {
+                        System.out.println("tagInfo.defineRequiredEnclosingTags(\"" + value + "\");");
+                    }
+                } else if ( "forbidden-tags".equals(dependencyName) ) {
+                    tagInfo.defineForbiddenTags(value);
+                    if (generateCode) {
+                        System.out.println("tagInfo.defineForbiddenTags(\"" + value + "\");");
+                    }
+                } else if ( "allowed-children-tags".equals(dependencyName) ) {
+                    tagInfo.defineAllowedChildrenTags(value);
+                    if (generateCode) {
+                        System.out.println("tagInfo.defineAllowedChildrenTags(\"" + value + "\");");
+                    }
+                } else if ( "higher-level-tags".equals(dependencyName) ) {
+                    tagInfo.defineHigherLevelTags(value);
+                    if (generateCode) {
+                        System.out.println("tagInfo.defineHigherLevelTags(\"" + value + "\");");
+                    }
+                } else if ( "close-before-copy-inside-tags".equals(dependencyName) ) {
+                    tagInfo.defineCloseBeforeCopyInsideTags(value);
+                    if (generateCode) {
+                        System.out.println("tagInfo.defineCloseBeforeCopyInsideTags(\"" + value + "\");");
+                    }
+                } else if ( "close-inside-copy-after-tags".equals(dependencyName) ) {
+                    tagInfo.defineCloseInsideCopyAfterTags(value);
+                    if (generateCode) {
+                        System.out.println("tagInfo.defineCloseInsideCopyAfterTags(\"" + value + "\");");
+                    }
+                } else if ( "close-before-tags".equals(dependencyName) ) {
+                    tagInfo.defineCloseBeforeTags(value);
+                    if (generateCode) {
+                        System.out.println("tagInfo.defineCloseBeforeTags(\"" + value + "\");");
+                    }
+                }
+            }
+        }
+
+        public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
+            if ( "tag".equals(qName) ) {
+                String name = attributes.getValue("name");
+                String content = attributes.getValue("content");
+                String section = attributes.getValue("section");
+                String deprecated = attributes.getValue("deprecated");
+                String unique = attributes.getValue("unique");
+                String ignorePermitted = attributes.getValue("ignore-permitted");
+                tagInfo = new TagInfo(name,
+                                      "all".equals(content) ? TagInfo.CONTENT_ALL : ("none".equals(content) ? TagInfo.CONTENT_NONE : TagInfo.CONTENT_TEXT),
+                                      "all".equals(section) ? TagInfo.HEAD_AND_BODY : ("head".equals(section) ? TagInfo.HEAD : TagInfo.BODY),
+                                      deprecated != null && "true".equals(deprecated),
+                                      unique != null && "true".equals(unique),
+                                      ignorePermitted != null && "true".equals(ignorePermitted) );
+                if (generateCode) {
+                    String s = "tagInfo = new TagInfo(\"#1\", #2, #3, #4, #5, #6);";
+                    s = s.replaceAll("#1", name);
+                    s = s.replaceAll("#2", "all".equals(content) ? "TagInfo.CONTENT_ALL" : ("none".equals(content) ? "TagInfo.CONTENT_NONE" : " TagInfo.CONTENT_TEXT"));
+                    s = s.replaceAll("#3", "all".equals(section) ? "TagInfo.HEAD_AND_BODY" : ("head".equals(section) ? "TagInfo.HEAD" : "TagInfo.BODY"));
+                    s = s.replaceAll("#4", Boolean.toString(deprecated != null && "true".equals(deprecated)));
+                    s = s.replaceAll("#5", Boolean.toString(unique != null && "true".equals(unique)));
+                    s = s.replaceAll("#6", Boolean.toString(ignorePermitted != null && "true".equals(ignorePermitted)));
+                    System.out.println(s);
+                }
+            } else if ( !"tags".equals(qName) ) {
+                dependencyName = qName;
+            }
+        }
+
+        public void endElement(String uri, String localName, String qName) throws SAXException {
+            if ( "tag".equals(qName) ) {
+                if (tagInfo != null) {
+                    tagInfoMap.put(tagInfo.getName(), tagInfo);
+                    if (generateCode) {
+                        System.out.println("this.put(\"" + tagInfo.getName() + "\", tagInfo);\n");
+                    }
+                }
+                tagInfo = null;
+            } else if ( !"tags".equals(qName) ) {
+                dependencyName = null;
+            }
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/ContentNode.java.svn-base b/src/org/htmlcleaner/.svn/text-base/ContentNode.java.svn-base
new file mode 100644
index 0000000..c657d83
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/ContentNode.java.svn-base
@@ -0,0 +1,71 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * <p>HTML text token.</p>
+ */
+public class ContentNode implements BaseToken, HtmlNode {
+
+    private StringBuilder content;
+
+    public ContentNode(String content) {
+        this.content = new StringBuilder(content);
+    }
+
+    ContentNode(char content[], int len) {
+        this.content = new StringBuilder(len + 16);
+        this.content.append(content, 0, len);
+    }
+
+    public String toString() {
+        return content.toString();
+    }
+
+    public StringBuilder getContent() {
+        return content;
+    }
+
+    public void serialize(Serializer serializer, Writer writer) throws IOException {
+    	writer.write( content.toString() );
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/DefaultTagProvider.java.svn-base b/src/org/htmlcleaner/.svn/text-base/DefaultTagProvider.java.svn-base
new file mode 100644
index 0000000..290d1f8
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/DefaultTagProvider.java.svn-base
@@ -0,0 +1,492 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.util.HashMap;
+
+/**
+ * This class is automatically created from ConfigFileTagProvider which reads
+ * default XML configuration file with tag descriptions.
+ * It is used as default tag info provider.
+ * Class is created for performance purposes - parsing XML file requires some
+ * processing time.
+ */
+public class DefaultTagProvider extends HashMap<String, TagInfo> implements ITagInfoProvider {
+
+    // singleton instance, used if no other TagInfoProvider is specified
+    private static DefaultTagProvider _instance;
+
+    /**
+     * @return Singleton instance of this class.
+     */
+    public static synchronized DefaultTagProvider getInstance() {
+        if (_instance == null) {
+            _instance = new DefaultTagProvider();
+        }
+        return _instance;
+    }
+
+    public DefaultTagProvider() {
+        TagInfo tagInfo;
+        
+        tagInfo = new TagInfo("div", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("div", tagInfo);
+
+        tagInfo = new TagInfo("span", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("span", tagInfo);
+
+        tagInfo = new TagInfo("meta", TagInfo.CONTENT_NONE, TagInfo.HEAD, false, false, false);
+        this.put("meta", tagInfo);
+
+        tagInfo = new TagInfo("link", TagInfo.CONTENT_NONE, TagInfo.HEAD, false, false, false);
+        this.put("link", tagInfo);
+
+        tagInfo = new TagInfo("title",  TagInfo.CONTENT_TEXT, TagInfo.HEAD, false, true, false);
+        this.put("title", tagInfo);
+
+        tagInfo = new TagInfo("style",  TagInfo.CONTENT_TEXT, TagInfo.HEAD, false, false, false);
+        this.put("style", tagInfo);
+
+        tagInfo = new TagInfo("bgsound", TagInfo.CONTENT_NONE, TagInfo.HEAD, false, false, false);
+        this.put("bgsound", tagInfo);
+
+        tagInfo = new TagInfo("h1", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h1", tagInfo);
+
+        tagInfo = new TagInfo("h2", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h2", tagInfo);
+
+        tagInfo = new TagInfo("h3", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h3", tagInfo);
+
+        tagInfo = new TagInfo("h4", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h4", tagInfo);
+
+        tagInfo = new TagInfo("h5", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h5", tagInfo);
+
+        tagInfo = new TagInfo("h6", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h6", tagInfo);
+
+        tagInfo = new TagInfo("p", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("p", tagInfo);
+
+        tagInfo = new TagInfo("strong", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("strong", tagInfo);
+
+        tagInfo = new TagInfo("em", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("em", tagInfo);
+
+        tagInfo = new TagInfo("abbr", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("abbr", tagInfo);
+
+        tagInfo = new TagInfo("acronym", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("acronym", tagInfo);
+
+        tagInfo = new TagInfo("address", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("address", tagInfo);
+
+        tagInfo = new TagInfo("bdo", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("bdo", tagInfo);
+
+        tagInfo = new TagInfo("blockquote", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("blockquote", tagInfo);
+
+        tagInfo = new TagInfo("cite", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("cite", tagInfo);
+
+        tagInfo = new TagInfo("q", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("q", tagInfo);
+
+        tagInfo = new TagInfo("code", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("code", tagInfo);
+
+        tagInfo = new TagInfo("ins", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("ins", tagInfo);
+
+        tagInfo = new TagInfo("del", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("del", tagInfo);
+
+        tagInfo = new TagInfo("dfn", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("dfn", tagInfo);
+
+        tagInfo = new TagInfo("kbd", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("kbd", tagInfo);
+
+        tagInfo = new TagInfo("pre", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("pre", tagInfo);
+
+        tagInfo = new TagInfo("samp", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("samp", tagInfo);
+
+        tagInfo = new TagInfo("listing", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("listing", tagInfo);
+
+        tagInfo = new TagInfo("var", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("var", tagInfo);
+
+        tagInfo = new TagInfo("br", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        this.put("br", tagInfo);
+
+        tagInfo = new TagInfo("wbr", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        this.put("wbr", tagInfo);
+
+        tagInfo = new TagInfo("nobr", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("nobr");
+        this.put("nobr", tagInfo);
+
+        tagInfo = new TagInfo("xmp",  TagInfo.CONTENT_TEXT, TagInfo.BODY, false, false, false);
+        this.put("xmp", tagInfo);
+
+        tagInfo = new TagInfo("a", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("a");
+        this.put("a", tagInfo);
+
+        tagInfo = new TagInfo("base", TagInfo.CONTENT_NONE, TagInfo.HEAD, false, false, false);
+        this.put("base", tagInfo);
+
+        tagInfo = new TagInfo("img", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        this.put("img", tagInfo);
+
+        tagInfo = new TagInfo("area", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("map");
+        tagInfo.defineCloseBeforeTags("area");
+        this.put("area", tagInfo);
+
+        tagInfo = new TagInfo("map", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("map");
+        this.put("map", tagInfo);
+
+        tagInfo = new TagInfo("object", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("object", tagInfo);
+
+        tagInfo = new TagInfo("param", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("param", tagInfo);
+
+        tagInfo = new TagInfo("applet", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        this.put("applet", tagInfo);
+
+        tagInfo = new TagInfo("xml", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("xml", tagInfo);
+
+        tagInfo = new TagInfo("ul", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("ul", tagInfo);
+
+        tagInfo = new TagInfo("ol", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("ol", tagInfo);
+
+        tagInfo = new TagInfo("li", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("li,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("li", tagInfo);
+
+        tagInfo = new TagInfo("dl", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("dl", tagInfo);
+
+        tagInfo = new TagInfo("dt", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("dt,dd");
+        this.put("dt", tagInfo);
+
+        tagInfo = new TagInfo("dd", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("dt,dd");
+        this.put("dd", tagInfo);
+
+        tagInfo = new TagInfo("menu", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("menu", tagInfo);
+
+        tagInfo = new TagInfo("dir", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("dir", tagInfo);
+
+        tagInfo = new TagInfo("table", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineAllowedChildrenTags("tr,tbody,thead,tfoot,colgroup,col,form,caption,tr");
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("tr,thead,tbody,tfoot,caption,colgroup,table,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param");
+        this.put("table", tagInfo);
+
+        tagInfo = new TagInfo("tr", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineRequiredEnclosingTags("tbody");
+        tagInfo.defineAllowedChildrenTags("td,th");
+        tagInfo.defineHigherLevelTags("thead,tfoot");
+        tagInfo.defineCloseBeforeTags("tr,td,th,caption,colgroup");
+        this.put("tr", tagInfo);
+
+        tagInfo = new TagInfo("td", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineRequiredEnclosingTags("tr");
+        tagInfo.defineCloseBeforeTags("td,th,caption,colgroup");
+        this.put("td", tagInfo);
+
+        tagInfo = new TagInfo("th", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineRequiredEnclosingTags("tr");
+        tagInfo.defineCloseBeforeTags("td,th,caption,colgroup");
+        this.put("th", tagInfo);
+
+        tagInfo = new TagInfo("tbody", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineAllowedChildrenTags("tr,form");
+        tagInfo.defineCloseBeforeTags("td,th,tr,tbody,thead,tfoot,caption,colgroup");
+        this.put("tbody", tagInfo);
+
+        tagInfo = new TagInfo("thead", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineAllowedChildrenTags("tr,form");
+        tagInfo.defineCloseBeforeTags("td,th,tr,tbody,thead,tfoot,caption,colgroup");
+        this.put("thead", tagInfo);
+
+        tagInfo = new TagInfo("tfoot", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineAllowedChildrenTags("tr,form");
+        tagInfo.defineCloseBeforeTags("td,th,tr,tbody,thead,tfoot,caption,colgroup");
+        this.put("tfoot", tagInfo);
+
+        tagInfo = new TagInfo("col", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        this.put("col", tagInfo);
+
+        tagInfo = new TagInfo("colgroup", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineAllowedChildrenTags("col");
+        tagInfo.defineCloseBeforeTags("td,th,tr,tbody,thead,tfoot,caption,colgroup");
+        this.put("colgroup", tagInfo);
+
+        tagInfo = new TagInfo("caption", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineCloseBeforeTags("td,th,tr,tbody,thead,tfoot,caption,colgroup");
+        this.put("caption", tagInfo);
+
+        tagInfo = new TagInfo("form", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, true);
+        tagInfo.defineForbiddenTags("form");
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("option,optgroup,textarea,select,fieldset,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("form", tagInfo);
+
+        tagInfo = new TagInfo("input", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("select,optgroup,option");
+        this.put("input", tagInfo);
+
+        tagInfo = new TagInfo("textarea", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("select,optgroup,option");
+        this.put("textarea", tagInfo);
+
+        tagInfo = new TagInfo("select", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, true);
+        tagInfo.defineAllowedChildrenTags("option,optgroup");
+        tagInfo.defineCloseBeforeTags("option,optgroup,select");
+        this.put("select", tagInfo);
+
+        tagInfo = new TagInfo("option",  TagInfo.CONTENT_TEXT, TagInfo.BODY, false, false, true);
+        tagInfo.defineFatalTags("select");
+        tagInfo.defineCloseBeforeTags("option");
+        this.put("option", tagInfo);
+
+        tagInfo = new TagInfo("optgroup", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, true);
+        tagInfo.defineFatalTags("select");
+        tagInfo.defineAllowedChildrenTags("option");
+        tagInfo.defineCloseBeforeTags("optgroup");
+        this.put("optgroup", tagInfo);
+
+        tagInfo = new TagInfo("button", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("select,optgroup,option");
+        this.put("button", tagInfo);
+
+        tagInfo = new TagInfo("label", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("label", tagInfo);
+
+        tagInfo = new TagInfo("fieldset", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("fieldset", tagInfo);
+
+        tagInfo = new TagInfo("legend", TagInfo.CONTENT_TEXT, TagInfo.BODY, false, false, false);
+        tagInfo.defineRequiredEnclosingTags("fieldset");
+        tagInfo.defineCloseBeforeTags("legend");
+        this.put("legend", tagInfo);
+
+        tagInfo = new TagInfo("isindex", TagInfo.CONTENT_NONE, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("isindex", tagInfo);
+
+        tagInfo = new TagInfo("script", TagInfo.CONTENT_ALL, TagInfo.HEAD_AND_BODY, false, false, false);
+        this.put("script", tagInfo);
+
+        tagInfo = new TagInfo("noscript", TagInfo.CONTENT_ALL, TagInfo.HEAD_AND_BODY, false, false, false);
+        this.put("noscript", tagInfo);
+
+        tagInfo = new TagInfo("b", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("u,i,tt,sub,sup,big,small,strike,blink,s");
+        this.put("b", tagInfo);
+
+        tagInfo = new TagInfo("i", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,tt,sub,sup,big,small,strike,blink,s");
+        this.put("i", tagInfo);
+
+        tagInfo = new TagInfo("u", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,i,tt,sub,sup,big,small,strike,blink,s");
+        this.put("u", tagInfo);
+
+        tagInfo = new TagInfo("tt", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,sub,sup,big,small,strike,blink,s");
+        this.put("tt", tagInfo);
+
+        tagInfo = new TagInfo("sub", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sup,big,small,strike,blink,s");
+        this.put("sub", tagInfo);
+
+        tagInfo = new TagInfo("sup", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,big,small,strike,blink,s");
+        this.put("sup", tagInfo);
+
+        tagInfo = new TagInfo("big", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,sup,small,strike,blink,s");
+        this.put("big", tagInfo);
+
+        tagInfo = new TagInfo("small", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,sup,big,strike,blink,s");
+        this.put("small", tagInfo);
+
+        tagInfo = new TagInfo("strike", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,sup,big,small,blink,s");
+        this.put("strike", tagInfo);
+
+        tagInfo = new TagInfo("blink", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,sup,big,small,strike,s");
+        this.put("blink", tagInfo);
+
+        tagInfo = new TagInfo("marquee", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("marquee", tagInfo);
+
+        tagInfo = new TagInfo("s", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,sup,big,small,strike,blink");
+        this.put("s", tagInfo);
+
+        tagInfo = new TagInfo("hr", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("hr", tagInfo);
+
+        tagInfo = new TagInfo("font", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        this.put("font", tagInfo);
+
+        tagInfo = new TagInfo("basefont", TagInfo.CONTENT_NONE, TagInfo.BODY, true, false, false);
+        this.put("basefont", tagInfo);
+
+        tagInfo = new TagInfo("center", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("center", tagInfo);
+
+        tagInfo = new TagInfo("comment", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("comment", tagInfo);
+
+        tagInfo = new TagInfo("server", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("server", tagInfo);
+
+        tagInfo = new TagInfo("iframe", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("iframe", tagInfo);
+
+        tagInfo = new TagInfo("embed", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("embed", tagInfo);
+    }
+
+    public TagInfo getTagInfo(String tagName) {
+        return get(tagName);
+    }
+
+    /**
+     * Removes tag info with specified name.
+     * @param tagName Name of the tag to be removed from the tag provider.
+     */
+    public void removeTagInfo(String tagName) {
+        if (tagName != null) {
+            remove(tagName.toLowerCase());
+        }
+    }
+
+    /**
+     * Sets new tag info.
+     * @param tagInfo tag info to be added to the provider.
+     */
+    public void addTagInfo(TagInfo tagInfo) {
+        if (tagInfo != null) {
+            put(tagInfo.getName().toLowerCase(), tagInfo);
+        }
+    }
+    
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/DoctypeToken.java.svn-base b/src/org/htmlcleaner/.svn/text-base/DoctypeToken.java.svn-base
new file mode 100644
index 0000000..807bd39
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/DoctypeToken.java.svn-base
@@ -0,0 +1,134 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+import org.htmlcleaner.BaseToken;
+
+/**
+ * <p>HTML doctype token.</p>
+ */
+public class DoctypeToken implements BaseToken {
+
+    private String part1;
+    private String part2;
+    private String part3;
+    private String part4;
+
+    public DoctypeToken(String part1, String part2, String part3, String part4) {
+        this.part1 = part1 != null ? part1.toUpperCase() : part1;
+        this.part2 = part2 != null ? part2.toUpperCase() : part2;
+        this.part3 = clean(part3);
+        this.part4 = clean(part4);
+    }
+    
+    private String clean(String s) {
+    	if (s != null) {
+	    	s = s.replace('>', ' ');
+	    	s = s.replace('<', ' ');
+	    	s = s.replace('&', ' ');
+	    	s = s.replace('\'', ' ');
+	    	s = s.replace('\"', ' ');
+    	}
+    	
+    	return s;
+    }
+    
+    public boolean isValid() {
+    	if ( part1 == null || "".equals(part1) ) {
+    		return false;
+    	}
+    	
+    	if ( !"public".equalsIgnoreCase(part2) && !"system".equalsIgnoreCase(part2) ) {
+    		return false;
+    	}
+    	
+    	if ( "system".equalsIgnoreCase(part2) && part4 != null && !"".equals(part4) ) {
+    		return false;
+    	}
+    	
+    	if ( "public".equalsIgnoreCase(part2) && (part4 == null || "".equals(part4)) ) {
+    		return false;
+    	}
+    	
+    	return true;
+    }
+
+    public String getContent() {
+        String result = "<!DOCTYPE " + part1 + " ";
+        result += part2 + " \"" + part3 + "\"";
+        if ( part4 != null && !"".equals(part4) ) {
+        	result += " \"" + part4 + "\"";
+        }
+        
+        result += ">";
+        
+        return result;
+    }
+
+    public String toString() {
+        return getContent();
+    }
+    
+    public String getName() {
+    	return "";
+    }
+    
+    public void serialize(Serializer serializer, Writer writer) throws IOException {
+    	writer.write(getContent() + "\n");
+    }
+
+    public String getPart1() {
+        return part1;
+    }
+
+    public String getPart2() {
+        return part2;
+    }
+
+    public String getPart3() {
+        return part3;
+    }
+
+    public String getPart4() {
+        return part4;
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/DomSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/DomSerializer.java.svn-base
new file mode 100644
index 0000000..b38d611
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/DomSerializer.java.svn-base
@@ -0,0 +1,143 @@
+package org.htmlcleaner;
+
+import org.w3c.dom.Comment;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * <p>DOM serializer - creates xml DOM.</p>
+ */
+public class DomSerializer {
+
+    protected CleanerProperties props;
+    protected boolean escapeXml = true;
+
+    public DomSerializer(CleanerProperties props, boolean escapeXml) {
+        this.props = props;
+        this.escapeXml = escapeXml;
+    }
+
+    public DomSerializer(CleanerProperties props) {
+        this(props, true);
+    }
+
+    public Document createDOM(TagNode rootNode) throws ParserConfigurationException {
+        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+
+        Document document = factory.newDocumentBuilder().newDocument();
+        Element rootElement = createElement(rootNode, document);
+        document.appendChild(rootElement);
+
+        setAttributes(rootNode, rootElement);
+
+        createSubnodes(document, rootElement, rootNode.getChildren());
+
+        return document;
+    }
+
+    private Element createElement(TagNode node, Document document) {
+        String name = node.getName();
+        boolean nsAware = props.isNamespacesAware();
+        String prefix = Utils.getXmlNSPrefix(name);
+        Map<String, String> nsDeclarations = node.getNamespaceDeclarations();
+        String nsURI = null;
+        if (prefix != null) {
+            if (nsAware) {
+                if (nsDeclarations != null) {
+                    nsURI = nsDeclarations.get(prefix);
+                }
+                if (nsURI == null) {
+                    nsURI = node.getNamespaceURIOnPath(prefix);
+                }
+                if (nsURI == null) {
+                    nsURI = prefix;
+                }
+            } else {
+                name = Utils.getXmlName(name);
+            }
+        } else {
+            if (nsAware) {
+                if (nsDeclarations != null) {
+                    nsURI = nsDeclarations.get("");
+                }
+                if (nsURI == null) {
+                    nsURI = node.getNamespaceURIOnPath(prefix);
+                }
+            }
+        }
+
+        if (nsAware && nsURI != null) {
+            return document.createElementNS(nsURI, name);
+        } else {
+            return document.createElement(name);
+        }
+    }
+
+    private void setAttributes(TagNode node, Element element) {
+        for (Map.Entry<String, String> entry: node.getAttributes().entrySet()) {
+            String attrName = entry.getKey();
+            String attrValue = entry.getValue();
+            if (escapeXml) {
+                attrValue = Utils.escapeXml(attrValue, props, true);
+            }
+            
+            String attPrefix = Utils.getXmlNSPrefix(attrName);
+            if (attPrefix != null) {
+                if (props.isNamespacesAware()) {
+                    String nsURI = node.getNamespaceURIOnPath(attPrefix);
+                    if (nsURI == null) {
+                        nsURI = attPrefix;
+                    }
+                    element.setAttributeNS(nsURI, attrName, attrValue);
+                } else {
+                    element.setAttribute(Utils.getXmlName(attrName), attrValue);
+                }
+            } else {
+                element.setAttribute(attrName, attrValue);
+            }
+        }
+    }
+
+    private void createSubnodes(Document document, Element element, List tagChildren) {
+        if (tagChildren != null) {
+            Iterator it = tagChildren.iterator();
+            while (it.hasNext()) {
+                Object item = it.next();
+                if (item instanceof CommentNode) {
+                    CommentNode commentNode = (CommentNode) item;
+                    Comment comment = document.createComment( commentNode.getContent().toString() );
+                    element.appendChild(comment);
+                } else if (item instanceof ContentNode) {
+                    String nodeName = element.getNodeName();
+                    String content = item.toString();
+                    boolean specialCase = props.isUseCdataForScriptAndStyle() &&
+                                          ("script".equalsIgnoreCase(nodeName) || "style".equalsIgnoreCase(nodeName));
+                    if (escapeXml && !specialCase) {
+                        content = Utils.escapeXml(content, props, true);
+                    }
+                    element.appendChild( specialCase ? document.createCDATASection(content) : document.createTextNode(content) );
+                } else if (item instanceof TagNode) {
+                    TagNode subTagNode = (TagNode) item;
+                    Element subelement = createElement(subTagNode, document);
+
+                    setAttributes(subTagNode, subelement);
+
+                    // recursively create subnodes
+                    createSubnodes(document, subelement, subTagNode.getChildren());
+
+                    element.appendChild(subelement);
+                } else if (item instanceof List) {
+                    List sublist = (List) item;
+                    createSubnodes(document, element, sublist);
+                }
+            }
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/EndTagToken.java.svn-base b/src/org/htmlcleaner/.svn/text-base/EndTagToken.java.svn-base
new file mode 100644
index 0000000..e3818bc
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/EndTagToken.java.svn-base
@@ -0,0 +1,63 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.Writer;
+
+
+/**
+ * <p>HTML tag end token.</p>
+ */
+public class EndTagToken extends TagToken {
+
+    public EndTagToken() {
+    }
+
+    public EndTagToken(String name) {
+        super(name == null ? null : name.toLowerCase());
+    }
+
+    void setAttribute(String attName, String attValue) {
+        // do nothing - simply ignore attributes in closing tag
+    }
+    
+    public void serialize(Serializer serializer, Writer writer) {
+    	// do nothing - simply ignore serialization
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/HtmlCleaner.java.svn-base b/src/org/htmlcleaner/.svn/text-base/HtmlCleaner.java.svn-base
new file mode 100644
index 0000000..bbccdaa
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/HtmlCleaner.java.svn-base
@@ -0,0 +1,884 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.*;
+
+/**
+ * Main HtmlCleaner class.
+ *
+ * <p>It represents public interface to the user. It's task is to call tokenizer with
+ * specified source HTML, traverse list of produced token list and create internal
+ * object model. It also offers a set of methods to write resulting XML to string,
+ * file or any output stream.</p>
+ * <p>Typical usage is the following:</p>
+ *
+ * <xmp>
+ *    // create an instance of HtmlCleaner
+ *   HtmlCleaner cleaner = new HtmlCleaner();
+ *
+ *   // take default cleaner properties
+ *   CleanerProperties props = cleaner.getProperties();
+ *
+ *   // customize cleaner's behaviour with property setters
+ *   props.setXXX(...);
+ *
+ *   // Clean HTML taken from simple string, file, URL, input stream,
+ *   // input source or reader. Result is root node of created
+ *   // tree-like structure. Single cleaner instance may be safely used
+ *   // multiple times.
+ *   TagNode node = cleaner.clean(...);
+ *
+ *   // optionally find parts of the DOM or modify some nodes
+ *   TagNode[] myNodes = node.getElementsByXXX(...);
+ *   // and/or
+ *   Object[] myNodes = node.evaluateXPath(xPathExpression);
+ *   // and/or
+ *   aNode.removeFromTree();
+ *   // and/or
+ *   aNode.addAttribute(attName, attValue);
+ *   // and/or
+ *   aNode.removeAttribute(attName, attValue);
+ *   // and/or
+ *   cleaner.setInnerHtml(aNode, htmlContent);
+ *   // and/or do some other tree manipulation/traversal
+ *
+ *   // serialize a node to a file, output stream, DOM, JDom...
+ *   new XXXSerializer(props).writeXmlXXX(aNode, ...);
+ *   myJDom = new JDomSerializer(props, true).createJDom(aNode);
+ *   myDom = new DomSerializer(props, true).createDOM(aNode);
+ * </xmp>
+ */
+public class HtmlCleaner {
+
+    public static final String DEFAULT_CHARSET = System.getProperty("file.encoding");
+
+    /**
+     * Contains information about single open tag
+     */
+    private class TagPos {
+		private int position;
+		private String name;
+		private TagInfo info;
+
+		TagPos(int position, String name) {
+			this.position = position;
+			this.name = name;
+            this.info = tagInfoProvider.getTagInfo(name);
+        }
+	}
+
+    /**
+     * Class that contains information and mathods for managing list of open,
+     * but unhandled tags.
+     */
+    private class OpenTags {
+        private List<TagPos> list = new ArrayList<TagPos>();
+        private TagPos last = null;
+        private Set<String> set = new HashSet<String>();
+
+        private boolean isEmpty() {
+            return list.isEmpty();
+        }
+
+        private void addTag(String tagName, int position) {
+            last = new TagPos(position, tagName);
+            list.add(last);
+            set.add(tagName);
+        }
+
+        private void removeTag(String tagName) {
+            ListIterator<TagPos> it = list.listIterator( list.size() );
+            while ( it.hasPrevious() ) {
+                TagPos currTagPos = it.previous();
+                if (tagName.equals(currTagPos.name)) {
+                    it.remove();
+                    break;
+                }
+            }
+
+            last =  list.isEmpty() ? null : list.get( list.size() - 1 );
+        }
+
+        private TagPos findFirstTagPos() {
+            return list.isEmpty() ? null : list.get(0);
+        }
+
+        private TagPos getLastTagPos() {
+            return last;
+        }
+
+        private TagPos findTag(String tagName) {
+            if (tagName != null) {
+                ListIterator<TagPos> it = list.listIterator(list.size());
+                String fatalTag = null;
+                TagInfo fatalInfo = tagInfoProvider.getTagInfo(tagName);
+                if (fatalInfo != null) {
+                    fatalTag = fatalInfo.getFatalTag();
+                }
+
+                while (it.hasPrevious()) {
+                    TagPos currTagPos = it.previous();
+                    if (tagName.equals(currTagPos.name)) {
+                        return currTagPos;
+                    } else if (fatalTag != null && fatalTag.equals(currTagPos.name)) {
+                        // do not search past a fatal tag for this tag
+                        return null;
+                    }
+                }
+            }
+
+            return null;
+        }
+
+        private boolean tagExists(String tagName) {
+            TagPos tagPos = findTag(tagName);
+            return tagPos != null;
+        }
+
+        private TagPos findTagToPlaceRubbish() {
+            TagPos result = null, prev = null;
+
+            if ( !isEmpty() ) {
+                ListIterator<TagPos> it = list.listIterator( list.size() );
+                while ( it.hasPrevious() ) {
+                    result = it.previous();
+                    if ( result.info == null || result.info.allowsAnything() ) {
+                    	if (prev != null) {
+                            return prev;
+                        }
+                    }
+                    prev = result;
+                }
+            }
+
+            return result;
+        }
+
+        private boolean tagEncountered(String tagName) {
+        	return set.contains(tagName);
+        }
+
+        /**
+         * Checks if any of tags specified in the set are already open.
+         * @param tags
+         */
+        private boolean someAlreadyOpen(Set tags) {
+        	Iterator<TagPos> it = list.iterator();
+            while ( it.hasNext() ) {
+            	TagPos curr = it.next();
+            	if ( tags.contains(curr.name) ) {
+            		return true;
+            	}
+            }
+
+
+            return false;
+        }
+    }
+
+    private class CleanTimeValues {
+        private OpenTags _openTags;
+        private boolean _headOpened = false;
+        private boolean _bodyOpened = false;
+        private Set _headTags = new LinkedHashSet();
+        private Set allTags = new TreeSet();
+
+        private TagNode htmlNode;
+        private TagNode bodyNode;
+        private TagNode headNode;
+        private TagNode rootNode;
+
+        private Set<String> pruneTagSet = new HashSet<String>();
+        private Set<TagNode> pruneNodeSet = new HashSet<TagNode>();
+    }
+
+    private CleanerProperties properties;
+
+    private ITagInfoProvider tagInfoProvider;
+
+    private CleanerTransformations transformations = null;
+
+    /**
+     * Constructor - creates cleaner instance with default tag info provider and default properties.
+     */
+    public HtmlCleaner() {
+        this(null, null);
+    }
+
+    /**
+     * Constructor - creates the instance with specified tag info provider and default properties
+     * @param tagInfoProvider Provider for tag filtering and balancing
+     */
+    public HtmlCleaner(ITagInfoProvider tagInfoProvider) {
+        this(tagInfoProvider, null);
+    }
+
+    /**
+     * Constructor - creates the instance with default tag info provider and specified properties
+     * @param properties Properties used during parsing and serializing
+     */
+    public HtmlCleaner(CleanerProperties properties) {
+        this(null, properties);
+    }
+
+    /**
+	 * Constructor - creates the instance with specified tag info provider and specified properties
+	 * @param tagInfoProvider Provider for tag filtering and balancing
+	 * @param properties Properties used during parsing and serializing
+	 */
+	public HtmlCleaner(ITagInfoProvider tagInfoProvider, CleanerProperties properties) {
+        this.tagInfoProvider = tagInfoProvider == null ? DefaultTagProvider.getInstance() : tagInfoProvider;
+        this.properties = properties == null ? new CleanerProperties() : properties;
+        this.properties.tagInfoProvider = this.tagInfoProvider;
+    }
+
+    public TagNode clean(String htmlContent) {
+        try {
+            return clean( new StringReader(htmlContent) );
+        } catch (IOException e) {
+            // should never happen because reading from StringReader
+            throw new HtmlCleanerException(e);
+        }
+    }
+
+    public TagNode clean(File file, String charset) throws IOException {
+        FileInputStream in = new FileInputStream(file);
+        Reader reader = new InputStreamReader(in, charset);
+        return clean(reader);
+    }
+
+    public TagNode clean(File file) throws IOException {
+        return clean(file, DEFAULT_CHARSET);
+    }
+
+    public TagNode clean(URL url, String charset) throws IOException {
+        URLConnection urlConnection = url.openConnection();
+        if (charset == null) {
+            charset = Utils.getCharsetFromContentTypeString( urlConnection.getHeaderField("Content-Type") );
+        }
+        if (charset == null) {
+            charset = Utils.getCharsetFromContent(url);
+        }
+        if (charset == null) {
+            charset = DEFAULT_CHARSET;
+        }
+        return clean(url.openStream(), charset);
+    }
+
+    /**
+     * Creates instance from the content downloaded from specified URL.
+     * HTML encoding is resolved following the attempts in the sequence:
+     * 1. reading Content-Type response header, 2. Analyzing META tags at the
+     * beginning of the html, 3. Using platform's default charset.
+     * @param url
+     * @return
+     * @throws IOException
+     */
+    public TagNode clean(URL url) throws IOException {
+        return clean(url, null);
+    }
+
+    public TagNode clean(InputStream in, String charset) throws IOException {
+        return clean( new InputStreamReader(in, charset) );
+    }
+
+    public TagNode clean(InputStream in) throws IOException {
+        return clean(in, DEFAULT_CHARSET);
+    }
+
+    public TagNode clean(Reader reader) throws IOException {
+        return clean(reader, new CleanTimeValues());
+    }
+
+    /**
+     * Basic version of the cleaning call.
+     * @param reader
+     * @return An instance of TagNode object which is the root of the XML tree.
+     * @throws IOException
+     */
+    public TagNode clean(Reader reader, final CleanTimeValues cleanTimeValues) throws IOException {
+        cleanTimeValues._openTags = new OpenTags();
+        cleanTimeValues._headOpened = false;
+        cleanTimeValues._bodyOpened = false;
+        cleanTimeValues._headTags.clear();
+        cleanTimeValues.allTags.clear();
+        setPruneTags(properties.pruneTags, cleanTimeValues);
+
+        cleanTimeValues.htmlNode = createTagNode("html", cleanTimeValues);
+        cleanTimeValues.bodyNode = createTagNode("body", cleanTimeValues);
+        cleanTimeValues.headNode = createTagNode("head", cleanTimeValues);
+        cleanTimeValues.rootNode = null;
+        cleanTimeValues.htmlNode.addChild(cleanTimeValues.headNode);
+        cleanTimeValues.htmlNode.addChild(cleanTimeValues.bodyNode);
+
+        HtmlTokenizer htmlTokenizer = new HtmlTokenizer(reader, properties, transformations, tagInfoProvider) {
+            @Override
+            void makeTree(List<BaseToken> tokenList) {
+                HtmlCleaner.this.makeTree( tokenList, tokenList.listIterator(tokenList.size() - 1), cleanTimeValues );
+            }
+
+            @Override
+            TagNode createTagNode(String name) {
+                return HtmlCleaner.this.createTagNode(name, cleanTimeValues); 
+            }
+        };
+
+		htmlTokenizer.start();
+
+        List<BaseToken> nodeList = htmlTokenizer.getTokenList();
+        closeAll(nodeList, cleanTimeValues);
+        createDocumentNodes(nodeList, cleanTimeValues);
+
+        calculateRootNode(cleanTimeValues);
+
+        // if there are some nodes to prune from tree
+        if ( cleanTimeValues.pruneNodeSet != null && !cleanTimeValues.pruneNodeSet.isEmpty() ) {
+            Iterator iterator = cleanTimeValues.pruneNodeSet.iterator();
+            while (iterator.hasNext()) {
+                TagNode tagNode = (TagNode) iterator.next();
+                TagNode parent = tagNode.getParent();
+                if (parent != null) {
+                    parent.removeChild(tagNode);
+                }
+            }
+        }
+
+        cleanTimeValues.rootNode.setDocType( htmlTokenizer.getDocType() );
+
+        return cleanTimeValues.rootNode;
+    }
+
+    private TagNode createTagNode(String name, CleanTimeValues cleanTimeValues) {
+        TagNode node = new TagNode(name);
+        if ( cleanTimeValues.pruneTagSet != null && name != null && cleanTimeValues.pruneTagSet.contains(name.toLowerCase()) ) {
+            cleanTimeValues.pruneNodeSet.add(node);
+        }
+        return node;
+    }
+
+    private TagNode makeTagNodeCopy(TagNode tagNode, CleanTimeValues cleanTimeValues) {
+        TagNode copy = tagNode.makeCopy();
+        if ( cleanTimeValues.pruneTagSet != null && cleanTimeValues.pruneTagSet.contains(tagNode.getName()) ) {
+            cleanTimeValues.pruneNodeSet.add(copy);
+        }
+        return copy;
+    }
+
+    /**
+     * Assigns root node to internal variable.
+     * Root node of the result depends on parameter "omitHtmlEnvelope".
+     * If it is set, then first child of the body will be root node,
+     * or html will be root node otherwise.
+     */
+    private void calculateRootNode(CleanTimeValues cleanTimeValues) {
+        cleanTimeValues.rootNode =  cleanTimeValues.htmlNode;
+
+        if (properties.omitHtmlEnvelope) {
+            List bodyChildren = cleanTimeValues.bodyNode.getChildren();
+            if (bodyChildren != null) {
+                for (Object child: bodyChildren) {
+                    // if found child that is tag itself, then return it
+                    if (child instanceof TagNode) {
+                        cleanTimeValues.rootNode = (TagNode)child;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * Add attributes from specified map to the specified tag.
+     * If some attribute already exist it is preserved.
+     * @param tag
+     * @param attributes
+     */
+	private void addAttributesToTag(TagNode tag, Map attributes) {
+		if (attributes != null) {
+			Map tagAttributes = tag.getAttributes();
+			Iterator it = attributes.entrySet().iterator();
+			while (it.hasNext()) {
+				Map.Entry currEntry = (Map.Entry) it.next();
+				String attName = (String) currEntry.getKey();
+				if ( !tagAttributes.containsKey(attName) ) {
+					String attValue = (String) currEntry.getValue();
+					tag.setAttribute(attName, attValue);
+				}
+			}
+		}
+	}
+
+    /**
+     * Checks if open fatal tag is missing if there is a fatal tag for
+     * the specified tag.
+     * @param tag
+     */
+    private boolean isFatalTagSatisfied(TagInfo tag, CleanTimeValues cleanTimeValues) {
+    	if (tag != null) {
+            String fatalTagName = tag.getFatalTag();
+            return fatalTagName == null ? true : cleanTimeValues._openTags.tagExists(fatalTagName);
+    	}
+
+    	return true;
+    }
+
+    /**
+     * Check if specified tag requires parent tag, but that parent
+     * tag is missing in the appropriate context.
+     * @param tag
+     */
+    private boolean mustAddRequiredParent(TagInfo tag, CleanTimeValues cleanTimeValues) {
+    	if (tag != null) {
+    		String requiredParent = tag.getRequiredParent();
+    		if (requiredParent != null) {
+	    		String fatalTag = tag.getFatalTag();
+                int fatalTagPositon = -1;
+                if (fatalTag != null) {
+                    TagPos tagPos = cleanTimeValues._openTags.findTag(fatalTag);
+                    if (tagPos != null) {
+                        fatalTagPositon = tagPos.position;
+                    }
+                }
+
+	    		// iterates through the list of open tags from the end and check if there is some higher
+	    		ListIterator<TagPos> it = cleanTimeValues._openTags.list.listIterator( cleanTimeValues._openTags.list.size() );
+	            while ( it.hasPrevious() ) {
+	            	TagPos currTagPos = it.previous();
+	            	if (tag.isHigher(currTagPos.name)) {
+	            		return currTagPos.position <= fatalTagPositon;
+	            	}
+	            }
+
+	            return true;
+    		}
+    	}
+
+    	return false;
+    }
+
+    private TagNode createTagNode(TagNode startTagToken) {
+    	startTagToken.setFormed();
+    	return startTagToken;
+    }
+
+    private boolean isAllowedInLastOpenTag(BaseToken token, CleanTimeValues cleanTimeValues) {
+        TagPos last = cleanTimeValues._openTags.getLastTagPos();
+        if (last != null) {
+			 if (last.info != null) {
+                 return last.info.allowsItem(token);
+			 }
+		}
+
+		return true;
+    }
+
+    private void saveToLastOpenTag(List nodeList, BaseToken tokenToAdd, CleanTimeValues cleanTimeValues) {
+        TagPos last = cleanTimeValues._openTags.getLastTagPos();
+        if ( last != null && last.info != null && last.info.isIgnorePermitted() ) {
+            return;
+        }
+
+        TagPos rubbishPos = cleanTimeValues._openTags.findTagToPlaceRubbish();
+        if (rubbishPos != null) {
+    		TagNode startTagToken = (TagNode) nodeList.get(rubbishPos.position);
+            startTagToken.addItemForMoving(tokenToAdd);
+        }
+    }
+
+    private boolean isStartToken(Object o) {
+    	return (o instanceof TagNode) && !((TagNode)o).isFormed();
+    }
+
+	void makeTree(List<BaseToken> nodeList, ListIterator<BaseToken> nodeIterator, CleanTimeValues cleanTimeValues) {
+		// process while not reach the end of the list
+		while ( nodeIterator.hasNext() ) {
+			BaseToken token = nodeIterator.next();
+
+            if (token instanceof EndTagToken) {
+				EndTagToken endTagToken = (EndTagToken) token;
+				String tagName = endTagToken.getName();
+				TagInfo tag = tagInfoProvider.getTagInfo(tagName);
+
+				if ( (tag == null && properties.omitUnknownTags) || (tag != null && tag.isDeprecated() && properties.omitDeprecatedTags) ) {
+					nodeIterator.set(null);
+				} else if ( tag != null && !tag.allowsBody() ) {
+					nodeIterator.set(null);
+				} else {
+					TagPos matchingPosition = cleanTimeValues._openTags.findTag(tagName);
+
+                    if (matchingPosition != null) {
+                        List closed = closeSnippet(nodeList, matchingPosition, endTagToken, cleanTimeValues);
+                        nodeIterator.set(null);
+                        for (int i = closed.size() - 1; i >= 1; i--) {
+                            TagNode closedTag = (TagNode) closed.get(i);
+                            if ( tag != null && tag.isContinueAfter(closedTag.getName()) ) {
+                                nodeIterator.add( makeTagNodeCopy(closedTag, cleanTimeValues) );
+                                nodeIterator.previous();
+                            }
+                        }
+                    } else if ( !isAllowedInLastOpenTag(token, cleanTimeValues) ) {
+                        saveToLastOpenTag(nodeList, token, cleanTimeValues);
+                        nodeIterator.set(null);
+                    }
+                }
+			} else if ( isStartToken(token) ) {
+                TagNode startTagToken = (TagNode) token;
+				String tagName = startTagToken.getName();
+				TagInfo tag = tagInfoProvider.getTagInfo(tagName);
+
+                TagPos lastTagPos = cleanTimeValues._openTags.isEmpty() ? null : cleanTimeValues._openTags.getLastTagPos();
+                TagInfo lastTagInfo = lastTagPos == null ? null : tagInfoProvider.getTagInfo(lastTagPos.name);
+
+                // add tag to set of all tags
+				cleanTimeValues.allTags.add(tagName);
+
+                // HTML open tag
+                if ( "html".equals(tagName) ) {
+					addAttributesToTag(cleanTimeValues.htmlNode, startTagToken.getAttributes());
+					nodeIterator.set(null);
+                // BODY open tag
+                } else if ( "body".equals(tagName) ) {
+                    cleanTimeValues._bodyOpened = true;
+                    addAttributesToTag(cleanTimeValues.bodyNode, startTagToken.getAttributes());
+					nodeIterator.set(null);
+                // HEAD open tag
+                } else if ( "head".equals(tagName) ) {
+                    cleanTimeValues._headOpened = true;
+                    addAttributesToTag(cleanTimeValues.headNode, startTagToken.getAttributes());
+					nodeIterator.set(null);
+                // unknown HTML tag and unknown tags are not allowed
+                } else if ( (tag == null && properties.omitUnknownTags) || (tag != null && tag.isDeprecated() && properties.omitDeprecatedTags) ) {
+                    nodeIterator.set(null);
+                // if current tag is unknown, unknown tags are allowed and last open tag doesn't allow any other tags in its body
+                } else if ( tag == null && lastTagInfo != null && !lastTagInfo.allowsAnything() ) {
+                    saveToLastOpenTag(nodeList, token, cleanTimeValues);
+                    nodeIterator.set(null);
+                } else if ( tag != null && tag.hasPermittedTags() && cleanTimeValues._openTags.someAlreadyOpen(tag.getPermittedTags()) ) {
+                	nodeIterator.set(null);
+                // if tag that must be unique, ignore this occurence
+                } else if ( tag != null && tag.isUnique() && cleanTimeValues._openTags.tagEncountered(tagName) ) {
+                	nodeIterator.set(null);
+                // if there is no required outer tag without that this open tag is ignored
+                } else if ( !isFatalTagSatisfied(tag, cleanTimeValues) ) {
+					nodeIterator.set(null);
+                // if there is no required parent tag - it must be added before this open tag
+                } else if ( mustAddRequiredParent(tag, cleanTimeValues) ) {
+					String requiredParent = tag.getRequiredParent();
+					TagNode requiredParentStartToken = createTagNode(requiredParent, cleanTimeValues);
+					nodeIterator.previous();
+					nodeIterator.add(requiredParentStartToken);
+					nodeIterator.previous();
+                // if last open tag has lower presidence then this, it must be closed
+                } else if ( tag != null && lastTagPos != null && tag.isMustCloseTag(lastTagInfo) ) {
+					List closed = closeSnippet(nodeList, lastTagPos, startTagToken, cleanTimeValues);
+					int closedCount = closed.size();
+
+					// it is needed to copy some tags again in front of current, if there are any
+					if ( tag.hasCopyTags() && closedCount > 0 ) {
+						// first iterates over list from the back and collects all start tokens
+						// in sequence that must be copied
+						ListIterator closedIt = closed.listIterator(closedCount);
+						List toBeCopied = new ArrayList();
+						while (closedIt.hasPrevious()) {
+							TagNode currStartToken = (TagNode) closedIt.previous();
+							if ( tag.isCopy(currStartToken.getName()) ) {
+								toBeCopied.add(0, currStartToken);
+							} else {
+								break;
+							}
+						}
+
+						if (toBeCopied.size() > 0) {
+							Iterator copyIt = toBeCopied.iterator();
+							while (copyIt.hasNext()) {
+								TagNode currStartToken = (TagNode) copyIt.next();
+								nodeIterator.add( makeTagNodeCopy(currStartToken, cleanTimeValues) );
+							}
+
+                            // back to the previous place, before adding new start tokens
+							for (int i = 0; i < toBeCopied.size(); i++) {
+								nodeIterator.previous();
+							}
+                        }
+					}
+
+                    nodeIterator.previous();
+				// if this open tag is not allowed inside last open tag, then it must be moved to the place where it can be
+                } else if ( !isAllowedInLastOpenTag(token, cleanTimeValues) ) {
+                    saveToLastOpenTag(nodeList, token, cleanTimeValues);
+                    nodeIterator.set(null);
+				// if it is known HTML tag but doesn't allow body, it is immediately closed
+                } else if ( tag != null && !tag.allowsBody() ) {
+					TagNode newTagNode = createTagNode(startTagToken);
+                    addPossibleHeadCandidate(tag, newTagNode, cleanTimeValues);
+                    nodeIterator.set(newTagNode);
+				// default case - just remember this open tag and go further
+                } else {
+                    cleanTimeValues._openTags.addTag( tagName, nodeIterator.previousIndex() );
+                }
+			} else {
+				if ( !isAllowedInLastOpenTag(token, cleanTimeValues) ) {
+                    saveToLastOpenTag(nodeList, token, cleanTimeValues);
+                    nodeIterator.set(null);
+				}
+			}
+		}
+    }
+
+	private void createDocumentNodes(List listNodes, CleanTimeValues cleanTimeValues) {
+		Iterator it = listNodes.iterator();
+        while (it.hasNext()) {
+            Object child = it.next();
+
+            if (child == null) {
+            	continue;
+            }
+
+			boolean toAdd = true;
+
+            if (child instanceof TagNode) {
+                TagNode node = (TagNode) child;
+                TagInfo tag = tagInfoProvider.getTagInfo( node.getName() );
+                addPossibleHeadCandidate(tag, node, cleanTimeValues);
+			} else {
+				if (child instanceof ContentNode) {
+					toAdd = !"".equals(child.toString());
+				}
+			}
+
+			if (toAdd) {
+				cleanTimeValues.bodyNode.addChild(child);
+			}
+        }
+
+        // move all viable head candidates to head section of the tree
+        Iterator headIterator = cleanTimeValues._headTags.iterator();
+        while (headIterator.hasNext()) {
+            TagNode headCandidateNode = (TagNode) headIterator.next();
+
+            // check if this node is already inside a candidate for moving to head
+            TagNode parent = headCandidateNode.getParent();
+            boolean toMove = true;
+            while (parent != null) {
+                if ( cleanTimeValues._headTags.contains(parent) ) {
+                    toMove = false;
+                    break;
+                }
+                parent = parent.getParent();
+            }
+
+            if (toMove) {
+                headCandidateNode.removeFromTree();
+                cleanTimeValues.headNode.addChild(headCandidateNode);
+            }
+        }
+    }
+
+	private List closeSnippet(List nodeList, TagPos tagPos, Object toNode, CleanTimeValues cleanTimeValues) {
+		List closed = new ArrayList();
+		ListIterator it = nodeList.listIterator(tagPos.position);
+
+		TagNode tagNode = null;
+		Object item = it.next();
+		boolean isListEnd = false;
+
+		while ( (toNode == null && !isListEnd) || (toNode != null && item != toNode) ) {
+			if ( isStartToken(item) ) {
+                TagNode startTagToken = (TagNode) item;
+                closed.add(startTagToken);
+                List<BaseToken> itemsToMove = startTagToken.getItemsToMove();
+                if (itemsToMove != null) {
+            		OpenTags prevOpenTags = cleanTimeValues._openTags;
+            		cleanTimeValues._openTags = new OpenTags();
+            		makeTree(itemsToMove, itemsToMove.listIterator(0), cleanTimeValues);
+                    closeAll(itemsToMove, cleanTimeValues);
+                    startTagToken.setItemsToMove(null);
+                    cleanTimeValues._openTags = prevOpenTags;
+                }
+
+                TagNode newTagNode = createTagNode(startTagToken);
+                TagInfo tag = tagInfoProvider.getTagInfo( newTagNode.getName() );
+                addPossibleHeadCandidate(tag, newTagNode, cleanTimeValues);
+                if (tagNode != null) {
+					tagNode.addChildren(itemsToMove);
+                    tagNode.addChild(newTagNode);
+                    it.set(null);
+                } else {
+                	if (itemsToMove != null) {
+                		itemsToMove.add(newTagNode);
+                		it.set(itemsToMove);
+                	} else {
+                		it.set(newTagNode);
+                	}
+                }
+
+                cleanTimeValues._openTags.removeTag( newTagNode.getName() );
+                tagNode = newTagNode;
+            } else {
+            	if (tagNode != null) {
+            		it.set(null);
+            		if (item != null) {
+            			tagNode.addChild(item);
+                    }
+                }
+            }
+
+			if ( it.hasNext() ) {
+				item = it.next();
+			} else {
+				isListEnd = true;
+			}
+		}
+
+		return closed;
+    }
+
+    /**
+     * Close all unclosed tags if there are any.
+     */
+    private void closeAll(List<BaseToken> nodeList, CleanTimeValues cleanTimeValues) {
+        TagPos firstTagPos = cleanTimeValues._openTags.findFirstTagPos();
+        if (firstTagPos != null) {
+            closeSnippet(nodeList, firstTagPos, null, cleanTimeValues);
+        }
+    }
+
+    /**
+     * Checks if specified tag with specified info is candidate for moving to head section.
+     * @param tagInfo
+     * @param tagNode
+     */
+    private void addPossibleHeadCandidate(TagInfo tagInfo, TagNode tagNode, CleanTimeValues cleanTimeValues) {
+        if (tagInfo != null && tagNode != null) {
+            if ( tagInfo.isHeadTag() || (tagInfo.isHeadAndBodyTag() && cleanTimeValues._headOpened && !cleanTimeValues._bodyOpened) ) {
+                cleanTimeValues._headTags.add(tagNode);
+            }
+        }
+    }
+
+    public CleanerProperties getProperties() {
+        return properties;
+    }
+
+    private void setPruneTags(String pruneTags, CleanTimeValues cleanTimeValues) {
+        cleanTimeValues.pruneTagSet.clear();
+        cleanTimeValues.pruneNodeSet.clear();
+        if (pruneTags != null) {
+            StringTokenizer tokenizer = new StringTokenizer(pruneTags, ",");
+            while ( tokenizer.hasMoreTokens() ) {
+                cleanTimeValues.pruneTagSet.add( tokenizer.nextToken().trim().toLowerCase() );
+            }
+        }
+    }
+
+    /**
+     * @return ITagInfoProvider instance for this HtmlCleaner
+     */
+    public ITagInfoProvider getTagInfoProvider() {
+        return tagInfoProvider;
+    }
+
+    /**
+     * @return Transormations defined for this instance of cleaner
+     */
+    public CleanerTransformations getTransformations() {
+        return transformations;
+    }
+
+    /**
+     * Sets tranformations for this cleaner instance.
+     * @param transformations
+     */
+    public void setTransformations(CleanerTransformations transformations) {
+        this.transformations = transformations;
+    }
+
+    /**
+     * For the specified node, returns it's content as string.
+     * @param node
+     */
+    public String getInnerHtml(TagNode node) {
+        if (node != null) {
+            try {
+                String content = new SimpleXmlSerializer(properties).getAsString(node);
+                int index1 = content.indexOf("<" + node.getName());
+                index1 = content.indexOf('>', index1 + 1);
+                int index2 = content.lastIndexOf('<');
+                return index1 >= 0 && index1 <= index2 ? content.substring(index1 + 1, index2) : null;
+            } catch (IOException e) {
+                throw new HtmlCleanerException(e);
+            }
+        } else {
+            throw new HtmlCleanerException("Cannot return inner html of the null node!");
+        }
+    }
+
+    /**
+     * For the specified tag node, defines it's html content. This causes cleaner to
+     * reclean given html portion and insert it inside the node instead of previous content.
+     * @param node
+     * @param content
+     */
+    public void setInnerHtml(TagNode node, String content) {
+        if (node != null) {
+            String nodeName = node.getName();
+            StringBuilder html = new StringBuilder();
+            html.append("<" + nodeName + " marker=''>");
+            html.append(content);
+            html.append("</" + nodeName + ">");
+            TagNode parent = node.getParent();
+            while (parent != null) {
+                String parentName = parent.getName();
+                html.insert(0, "<" + parentName + ">");
+                html.append("</" + parentName + ">");
+                parent = parent.getParent();
+            }
+
+            TagNode rootNode = clean( html.toString() );
+            TagNode cleanedNode = rootNode.findElementHavingAttribute("marker", true);
+            if (cleanedNode != null) {
+                node.setChildren( cleanedNode.getChildren() );
+            }
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/HtmlCleanerException.java.svn-base b/src/org/htmlcleaner/.svn/text-base/HtmlCleanerException.java.svn-base
new file mode 100644
index 0000000..08169ec
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/HtmlCleanerException.java.svn-base
@@ -0,0 +1,62 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+
+/**
+ * <p>General HtmlCleaner runtime exception.</p>
+ */
+public class HtmlCleanerException extends RuntimeException {
+
+    public HtmlCleanerException() {
+        this("HtmlCleaner expression occureed!");
+    }
+
+    public HtmlCleanerException(Throwable cause) {
+        super(cause);
+    }
+
+    public HtmlCleanerException(String message) {
+        super(message);
+    }
+
+    public HtmlCleanerException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/HtmlCleanerForAnt.java.svn-base b/src/org/htmlcleaner/.svn/text-base/HtmlCleanerForAnt.java.svn-base
new file mode 100644
index 0000000..8b63719
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/HtmlCleanerForAnt.java.svn-base
@@ -0,0 +1,343 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+	All rights reserved.
+
+	Redistribution and use of this software in source and binary forms,
+	with or without modification, are permitted provided that the following
+	conditions are met:
+
+	* Redistributions of source code must retain the above
+	  copyright notice, this list of conditions and the
+	  following disclaimer.
+
+	* Redistributions in binary form must reproduce the above
+	  copyright notice, this list of conditions and the
+	  following disclaimer in the documentation and/or other
+	  materials provided with the distribution.
+
+	* The name of HtmlCleaner may not be used to endorse or promote
+	  products derived from this software without specific prior
+	  written permission.
+
+	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+	AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+	ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+	LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+	CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+	POSSIBILITY OF SUCH DAMAGE.
+
+	You can contact Vladimir Nikic by sending e-mail to
+	nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+	subject line.
+*/
+
+package org.htmlcleaner;
+
+import org.apache.tools.ant.BuildException;
+
+import java.net.URL;
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.FileOutputStream;
+import java.util.*;
+
+/**
+ * <p>Support for ANT.</p>
+ */
+public class HtmlCleanerForAnt extends org.apache.tools.ant.Task {
+
+    private String text;
+    private String src;
+    private String dest;
+    private String incharset = HtmlCleaner.DEFAULT_CHARSET;
+    private String outcharset = HtmlCleaner.DEFAULT_CHARSET;
+    private String taginfofile = null;
+    private String outputtype = "simple";
+    private boolean advancedxmlescape = true;
+    private boolean transrescharstoncr = false;
+    private boolean usecdata = true;
+    private boolean specialentities = true;
+    private boolean transspecialentitiestoncr = false;
+    private boolean unicodechars = true;
+    private boolean omitunknowntags = false;
+    private boolean treatunknowntagsascontent = false;
+    private boolean omitdeprtags = false;
+    private boolean treatdeprtagsascontent = false;
+    private boolean omitcomments = false;
+    private boolean omitxmldecl = false;
+    private boolean omitdoctypedecl = true;
+    private boolean omithtmlenvelope = false;
+    private boolean useemptyelementtags = true;
+    private boolean allowmultiwordattributes = true;
+    private boolean allowhtmlinsideattributes = false;
+    private boolean ignoreqe = true;
+    private boolean namespacesaware = true;
+    private String hyphenreplacement = "=";
+    private String prunetags = "";
+    private String booleanatts = CleanerProperties.BOOL_ATT_SELF;
+    private String nodebyxpath = null;
+    private boolean omitenvelope = false;
+
+    private String transform = null;
+
+    public void setText(String text) {
+        this.text = text;
+    }
+
+    public void setSrc(String src) {
+        this.src = src;
+    }
+
+    public void setDest(String dest) {
+        this.dest = dest;
+    }
+
+    public void setIncharset(String incharset) {
+        this.incharset = incharset;
+    }
+
+    public void setOutcharset(String outcharset) {
+        this.outcharset = outcharset;
+    }
+
+    public void setTaginfofile(String taginfofile) {
+        this.taginfofile = taginfofile;
+    }
+
+    public void setOutputtype(String outputtype) {
+        this.outputtype = outputtype;
+    }
+
+    public void setAdvancedxmlescape(boolean advancedxmlescape) {
+        this.advancedxmlescape = advancedxmlescape;
+    }
+
+    public void setTransrescharstoncr(boolean transrescharstoncr) {
+        this.transrescharstoncr = transrescharstoncr;
+    }
+
+    public void setUsecdata(boolean usecdata) {
+        this.usecdata = usecdata;
+    }
+
+    public void setSpecialentities(boolean specialentities) {
+        this.specialentities = specialentities;
+    }
+
+    public void setTransspecialentitiestoncr(boolean transspecialentitiestoncr) {
+        this.transspecialentitiestoncr = transspecialentitiestoncr;
+    }
+
+    public void setUnicodechars(boolean unicodechars) {
+        this.unicodechars = unicodechars;
+    }
+
+    public void setOmitunknowntags(boolean omitunknowntags) {
+        this.omitunknowntags = omitunknowntags;
+    }
+
+    public void setTreatunknowntagsascontent(boolean treatunknowntagsascontent) {
+        this.treatunknowntagsascontent = treatunknowntagsascontent;
+    }
+
+    public void setOmitdeprtags(boolean omitdeprtags) {
+        this.omitdeprtags = omitdeprtags;
+    }
+
+
+    public void setTreatdeprtagsascontent(boolean treatdeprtagsascontent) {
+        this.treatdeprtagsascontent = treatdeprtagsascontent;
+    }
+
+    public void setOmitcomments(boolean omitcomments) {
+        this.omitcomments = omitcomments;
+    }
+
+    public void setOmitxmldecl(boolean omitxmldecl) {
+        this.omitxmldecl = omitxmldecl;
+    }
+
+    public void setOmitdoctypedecl(boolean omitdoctypedecl) {
+        this.omitdoctypedecl = omitdoctypedecl;
+    }
+
+    public void setOmithtmlenvelope(boolean omithtmlenvelope) {
+        this.omithtmlenvelope = omithtmlenvelope;
+    }
+
+    public void setUseemptyelementtags(boolean useemptyelementtags) {
+        this.useemptyelementtags = useemptyelementtags;
+    }
+
+    public void setAllowmultiwordattributes(boolean allowmultiwordattributes) {
+        this.allowmultiwordattributes = allowmultiwordattributes;
+    }
+
+    public void setAllowhtmlinsideattributes(boolean allowhtmlinsideattributes) {
+        this.allowhtmlinsideattributes = allowhtmlinsideattributes;
+    }
+
+    public void setIgnoreqe(boolean ignoreqe) {
+        this.ignoreqe = ignoreqe;
+    }
+
+    public void setNamespacesaware(boolean namespacesaware) {
+        this.namespacesaware = namespacesaware;
+    }
+
+    public void setHyphenreplacement(String hyphenreplacement) {
+        this.hyphenreplacement = hyphenreplacement;
+    }
+
+    public void setPrunetags(String prunetags) {
+        this.prunetags = prunetags;
+    }
+
+    public void setBooleanatts(String booleanatts) {
+        this.booleanatts = booleanatts;
+    }
+
+    public void setNodebyxpath(String nodebyxpath) {
+        this.nodebyxpath = nodebyxpath;
+    }
+
+    public void setOmitenvelope(boolean omitenvelope) {
+        this.omitenvelope = omitenvelope;
+    }
+
+    public void setTransform(String transform) {
+        this.transform = transform;
+    }
+
+    public void addText(String text) {
+        this.text = text;
+    }
+
+    /**
+     * Implementation of Ant task execution.
+     * @throws BuildException
+     */
+    public void execute() throws BuildException {
+        HtmlCleaner cleaner;
+
+        if ( this.taginfofile != null ) {
+            cleaner = new HtmlCleaner(new ConfigFileTagProvider(new File(this.taginfofile)));
+        } else {
+            cleaner = new HtmlCleaner();
+        }
+
+        if (text == null && src == null) {
+            throw new BuildException("Eather attribute 'src' or text body containing HTML must be specified!");
+        }
+
+        CleanerProperties props = cleaner.getProperties();
+
+        props.setAdvancedXmlEscape(this.advancedxmlescape);
+        props.setTransResCharsToNCR(this.transrescharstoncr);
+        props.setUseCdataForScriptAndStyle(this.usecdata);
+        props.setTranslateSpecialEntities(this.specialentities);
+        props.setTransSpecialEntitiesToNCR(this.transspecialentitiestoncr);
+        props.setRecognizeUnicodeChars(this.unicodechars);
+        props.setOmitUnknownTags(this.omitunknowntags);
+        props.setTreatUnknownTagsAsContent(this.treatunknowntagsascontent);
+        props.setOmitDeprecatedTags(this.omitdeprtags);
+        props.setTreatDeprecatedTagsAsContent(this.treatdeprtagsascontent);
+        props.setOmitComments(this.omitcomments);
+        props.setOmitXmlDeclaration(this.omitxmldecl);
+        props.setOmitDoctypeDeclaration(this.omitdoctypedecl);
+        props.setOmitHtmlEnvelope(this.omithtmlenvelope);
+        props.setUseEmptyElementTags(this.useemptyelementtags);
+        props.setAllowMultiWordAttributes(this.allowmultiwordattributes);
+        props.setAllowHtmlInsideAttributes(this.allowhtmlinsideattributes);
+        props.setIgnoreQuestAndExclam(this.ignoreqe);
+        props.setNamespacesAware(this.namespacesaware);
+        props.setHyphenReplacementInComment(this.hyphenreplacement);
+        props.setPruneTags(this.prunetags);
+        props.setBooleanAttributeValues(this.booleanatts);
+
+        // set cleaner transformation if specified in "transform" attribute
+        // format of attribute is expected to be <transkey1>[=<transvalue1>]|<transkey2>[=<transvalue2>...
+        // (separator is pipe character)
+        if ( !Utils.isEmptyString(transform) ) {
+            String[] transItems = Utils.tokenize(transform, "|");
+            Map transInfos = new TreeMap();
+            for (int i = 0; i < transItems.length; i++) {
+                String item = transItems[i];
+                int index = item.indexOf('=');
+                String key = index <= 0 ? item : item.substring(0, index);
+                String value = index <= 0 ? null : item.substring(index + 1);
+                transInfos.put(key, value);
+            }
+
+            CleanerTransformations transformations = new CleanerTransformations();
+            Iterator iterator = transInfos.entrySet().iterator();
+            while (iterator.hasNext()) {
+                Map.Entry entry = (Map.Entry) iterator.next();
+                String tag = (String) entry.getKey();
+                String value = (String) entry.getValue();
+                Utils.updateTagTransformations(transformations, tag, value);
+            }
+            cleaner.setTransformations(transformations);
+        }
+
+        try {
+            TagNode node;
+            try {
+                if ( src != null && (src.startsWith("http://") || src.startsWith("https://")) ) {
+                    node = cleaner.clean(new URL(src), incharset);
+                } else if (src != null) {
+                    node = cleaner.clean(new File(src), incharset);
+                } else {
+                    node = cleaner.clean(text);
+                }
+            } catch (IOException e) {
+                throw new BuildException(e);
+            }
+
+            // if user specifies XPath expresssion to choose node for serialization, then
+            // try to evaluate XPath and look for first TagNode instance in the resulting array
+            if ( nodebyxpath != null ) {
+                final Object[] xpathResult = node.evaluateXPath(nodebyxpath);
+                for (int i = 0; i < xpathResult.length; i++) {
+                    if ( xpathResult[i] instanceof TagNode ) {
+                        node = (TagNode) xpathResult[i];
+                        break;
+                    }
+                }
+            }
+
+            OutputStream out;
+            if ( dest == null || "".equals(dest.trim()) ) {
+                out = System.out;
+            } else {
+                out = new FileOutputStream(dest);
+            }
+                
+            if ( "compact".equals(outputtype) ) {
+                new CompactXmlSerializer(props).writeToStream(node, out, outcharset, omitenvelope);
+            } else if ( "browser-compact".equals(outputtype) ) {
+                new BrowserCompactXmlSerializer(props).writeToStream(node, out, outcharset, omitenvelope);
+            } else if ( "pretty".equals(outputtype) ) {
+                new PrettyXmlSerializer(props).writeToStream(node, out, outcharset, omitenvelope);
+            } else if ( "htmlsimple".equals(outputtype) ) {
+                new SimpleHtmlSerializer(props).writeToStream(node, out, outcharset, omitenvelope);
+            } else if ( "htmlcompact".equals(outputtype) ) {
+                new CompactHtmlSerializer(props).writeToStream(node, out, outcharset, omitenvelope);
+            } else if ( "htmlpretty".equals(outputtype) ) {
+                new PrettyHtmlSerializer(props).writeToStream(node, out, outcharset, omitenvelope);
+            } else {
+                new SimpleXmlSerializer(props).writeToStream(node, out, outcharset, omitenvelope);
+            }
+        } catch (IOException e) {
+             throw new BuildException(e);
+        } catch (XPatherException e) {
+            throw new BuildException(e);
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/HtmlNode.java.svn-base b/src/org/htmlcleaner/.svn/text-base/HtmlNode.java.svn-base
new file mode 100644
index 0000000..1e8afbb
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/HtmlNode.java.svn-base
@@ -0,0 +1,7 @@
+package org.htmlcleaner;
+
+/**
+ * Marker interface denoting nodes of the document tree
+ */
+public interface HtmlNode {
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/HtmlSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/HtmlSerializer.java.svn-base
new file mode 100644
index 0000000..b7e1a88
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/HtmlSerializer.java.svn-base
@@ -0,0 +1,216 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * <p>Abstract HTML serializer - contains common logic for descendants.</p>
+ */
+public abstract class HtmlSerializer extends Serializer {
+
+	protected HtmlSerializer(CleanerProperties props) {
+		super(props);
+    }
+
+
+    protected boolean isMinimizedTagSyntax(TagNode tagNode) {
+        final TagInfo tagInfo = props.getTagInfoProvider().getTagInfo(tagNode.getName());
+        return tagInfo != null && !tagNode.hasChildren() && tagInfo.isEmptyTag();
+    }
+
+    protected boolean dontEscape(TagNode tagNode) {
+        return isScriptOrStyle(tagNode);
+    }
+
+    protected String escapeText(String s) {
+        boolean recognizeUnicodeChars = props.isRecognizeUnicodeChars();
+        boolean translateSpecialEntities = props.isTranslateSpecialEntities();
+
+        if (s != null) {
+    		int len = s.length();
+    		StringBuilder result = new StringBuilder(len);
+
+    		for (int i = 0; i < len; i++) {
+    			char ch = s.charAt(i);
+
+    			if (ch == '&') {
+    				if (i < len-2 && s.charAt(i+1) == '#') {
+                        boolean isHex = Character.toLowerCase(s.charAt(i+2)) == 'x';
+                        int charIndex = i + (isHex ? 3 : 2);
+                        int radix = isHex ? 16 : 10;
+                        String unicode = "";
+                        while (charIndex < len) {
+                            char currCh = s.charAt(charIndex);
+                            if (currCh == ';') {
+                                break;
+                            } else if (Utils.isValidInt(unicode + currCh, radix)) {
+                                unicode += currCh;
+                                charIndex++;
+                            } else {
+                                charIndex--;
+                                break;
+                            }
+                        }
+
+    					if (Utils.isValidInt(unicode, radix)) {
+                            char unicodeChar = (char)Integer.parseInt(unicode, radix);
+                            if ( !Utils.isValidXmlChar(unicodeChar) ) {
+                                i = charIndex;
+                            } else if ( !Utils.isReservedXmlChar(unicodeChar) ) {
+                                result.append( recognizeUnicodeChars ? String.valueOf(unicodeChar) : "&#" + unicode + ";" );
+                                i = charIndex;
+                            } else {
+                                i = charIndex;
+                                result.append("&#" + unicode + ";");
+                            }
+    					} else {
+    						result.append(props.transResCharsToNCR ? "&#" + (int)'&' + ";" : "&");
+    					}
+    				} else {
+                        // get minimal following sequence required to recognize some special entitiy
+                        String seq = s.substring(i, i + Math.min(SpecialEntity.getMaxEntityLength() + 2, len - i));
+                        int semiIndex = seq.indexOf(';');
+                        if (semiIndex > 0) {
+                            String entityKey = seq.substring(1, semiIndex);
+                            SpecialEntity entity = SpecialEntity.getEntity(entityKey);
+                            if (entity != null) {
+                                if (translateSpecialEntities) {
+                                    result.append(props.isTransSpecialEntitiesToNCR() ? entity.getDecimalNCR() : entity.getCharacter());
+                                } else {
+                                    result.append(entity.getEscapedValue());
+                                }
+
+                                i += entityKey.length() + 1;
+                                continue;
+                            }
+                        }
+
+                        String sub = s.substring(i);
+                        boolean isReservedSeq = false;
+                        for (Map.Entry<Character, String> entry: Utils.RESERVED_XML_CHARS.entrySet()) {
+                            seq = entry.getValue();
+                            if ( sub.startsWith(seq) ) {
+                                result.append( props.transResCharsToNCR ? "&#" + (int)entry.getKey() + ";" : seq );
+                                i += seq.length() - 1;
+                                isReservedSeq = true;
+                                break;
+                            }
+                        }
+                        if (!isReservedSeq) {
+                            result.append( props.transResCharsToNCR ? "&#" + (int)'&' + ";" : "&" );
+                        }
+    				}
+    			} else if (Utils.isReservedXmlChar(ch)) {
+    				result.append( props.transResCharsToNCR ? "&#" + (int)ch + ";" : ch );
+    			} else {
+    				result.append(ch);
+    			}
+    		}
+
+    		return result.toString();
+    	}
+
+    	return null;
+    }
+
+    protected void serializeOpenTag(TagNode tagNode, Writer writer, boolean newLine) throws IOException {
+        String tagName = tagNode.getName();
+
+        if (Utils.isEmptyString(tagName)) {
+            return;
+        }
+
+        boolean nsAware = props.isNamespacesAware();
+
+        if (!nsAware && Utils.getXmlNSPrefix(tagName) != null ) {
+            tagName = Utils.getXmlName(tagName);
+        }
+
+        writer.write("<" + tagName);
+        for (Map.Entry<String, String> entry: tagNode.getAttributes().entrySet()) {
+            String attName = entry.getKey();
+            if (!nsAware && Utils.getXmlNSPrefix(attName) != null ) {
+                attName = Utils.getXmlName(attName);
+            }
+            writer.write(" " + attName + "=\"" + escapeText(entry.getValue()) + "\"");
+        }
+
+        if (nsAware) {
+            Map<String, String> nsDeclarations = tagNode.getNamespaceDeclarations();
+            if (nsDeclarations != null) {
+                for (Map.Entry<String, String> entry: nsDeclarations.entrySet()) {
+                    String prefix = entry.getKey();
+                    String att = "xmlns";
+                    if (prefix.length() > 0) {
+                         att += ":" + prefix;
+                    }
+                    writer.write(" " + att + "=\"" + escapeText(entry.getValue()) + "\"");
+                }
+            }
+        }
+
+        if ( isMinimizedTagSyntax(tagNode) ) {
+            writer.write(" />");
+            if (newLine) {
+                writer.write("\n");
+            }
+        } else {
+            writer.write(">");
+        }
+    }
+
+    protected void serializeEndTag(TagNode tagNode, Writer writer, boolean newLine) throws IOException {
+        String tagName = tagNode.getName();
+
+        if (Utils.isEmptyString(tagName)) {
+            return;
+        }
+
+        if (Utils.getXmlNSPrefix(tagName) != null && !props.isNamespacesAware()) {
+            tagName = Utils.getXmlName(tagName);
+        }
+
+        writer.write( "</" + tagName + ">" );
+        if (newLine) {
+            writer.write("\n");
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/HtmlTokenizer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/HtmlTokenizer.java.svn-base
new file mode 100644
index 0000000..86b73be
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/HtmlTokenizer.java.svn-base
@@ -0,0 +1,813 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * Main HTML tokenizer.
+ * <p>It's task is to parse HTML and produce list of valid tokens:
+ * open tag tokens, end tag tokens, contents (text) and comments.
+ * As soon as new item is added to token list, cleaner is invoked
+ * to clean current list at the end.</p>
+ */
+abstract public class HtmlTokenizer {
+	
+	private final static int WORKING_BUFFER_SIZE = 1024;
+
+    private BufferedReader _reader;
+    private char[] _working = new char[WORKING_BUFFER_SIZE];
+    
+    private transient int _pos = 0;
+    private transient int _len = -1;
+
+    private transient char _saved[] = new char[512];
+    private transient int _savedLen = 0;
+
+    private transient DoctypeToken _docType = null;
+    private transient TagToken _currentTagToken = null;
+    private transient List<BaseToken> _tokenList = new ArrayList<BaseToken>();
+
+    private boolean _asExpected = true;
+
+    private boolean _isScriptContext = false;
+
+    private CleanerProperties props;
+
+    private boolean isOmitUnknownTags;
+    private boolean isTreatUnknownTagsAsContent;
+    private boolean isOmitDeprecatedTags;
+    private boolean isTreatDeprecatedTagsAsContent;
+    private boolean isNamespacesAware;
+    private boolean isOmitComments;
+    private boolean isAllowMultiWordAttributes;
+    private boolean isAllowHtmlInsideAttributes;
+
+    private CleanerTransformations transformations;
+    private ITagInfoProvider tagInfoProvider;
+
+    private StringBuilder commonStr = new StringBuilder();
+
+    /**
+     * Constructor - cretes instance of the parser with specified content.
+     * 
+     * @param reader
+     * @param props
+     * @param transformations
+     * @param tagInfoProvider
+     * 
+     * @throws IOException
+     */
+    public HtmlTokenizer(Reader reader, CleanerProperties props, CleanerTransformations transformations, ITagInfoProvider tagInfoProvider) throws IOException {
+        this._reader = new BufferedReader(reader);
+        this.props = props;
+        this.isOmitUnknownTags = props.isOmitUnknownTags();
+        this.isTreatUnknownTagsAsContent = props.isTreatUnknownTagsAsContent();
+        this.isOmitDeprecatedTags = props.isOmitDeprecatedTags();
+        this.isTreatDeprecatedTagsAsContent = props.isTreatDeprecatedTagsAsContent();
+        this.isNamespacesAware = props.isNamespacesAware();
+        this.isOmitComments = props.isOmitComments();
+        this.isAllowMultiWordAttributes = props.isAllowMultiWordAttributes();
+        this.isAllowHtmlInsideAttributes = props.isAllowHtmlInsideAttributes();
+        this.transformations = transformations;
+        this.tagInfoProvider = tagInfoProvider;
+    }
+
+    private void addToken(BaseToken token) {
+        _tokenList.add(token);
+        makeTree(_tokenList);
+    }
+
+    abstract void makeTree(List<BaseToken> tokenList);
+
+    abstract TagNode createTagNode(String name);
+
+    private void readIfNeeded(int neededChars) throws IOException {
+        if (_len == -1 && _pos + neededChars >= WORKING_BUFFER_SIZE) {
+            int numToCopy = WORKING_BUFFER_SIZE - _pos;
+            System.arraycopy(_working, _pos, _working, 0, numToCopy);
+    		_pos = 0;
+
+            int expected = WORKING_BUFFER_SIZE - numToCopy;
+            int size = 0;
+            int charsRead;
+            int offset = numToCopy;
+            do {
+                charsRead = _reader.read(_working, offset, expected);
+                if (charsRead >= 0) {
+                    size += charsRead;
+                    offset += charsRead;
+                    expected -= charsRead;
+                }
+            } while (charsRead >= 0 && expected > 0);
+
+            if (expected > 0) {
+    			_len = size + numToCopy;
+            }
+
+            // convert invalid XML characters to spaces
+            for (int i = 0; i < (_len >= 0 ? _len : WORKING_BUFFER_SIZE); i++) {
+                int ch = _working[i];
+                if (ch >= 1 && ch <= 32 && ch != 10 && ch != 13) {
+                    _working[i] = ' ';
+                }
+            }
+        }
+    }
+
+    List<BaseToken> getTokenList() {
+    	return this._tokenList;
+    }
+
+    private void go() throws IOException {
+    	_pos++;
+    	readIfNeeded(0);
+    }
+
+    private void go(int step) throws IOException {
+    	_pos += step;
+    	readIfNeeded(step - 1);
+    }
+
+    /**
+     * Checks if content starts with specified value at the current position.
+     * @param value
+     * @return true if starts with specified value, false otherwise.
+     * @throws IOException
+     */
+    private boolean startsWith(String value) throws IOException {
+        int valueLen = value.length();
+        readIfNeeded(valueLen);
+        if (_len >= 0 && _pos + valueLen  > _len) {
+            return false;
+        }
+
+        for (int i = 0; i < valueLen; i++) {
+        	char ch1 = Character.toLowerCase( value.charAt(i) );
+        	char ch2 = Character.toLowerCase( _working[_pos + i] );
+        	if (ch1 != ch2) {
+        		return false;
+        	}
+        }
+
+        return true;
+    }
+
+    private boolean startsWithSimple(String value) throws IOException {
+        int valueLen = value.length();
+        readIfNeeded(valueLen);
+        if (_len >= 0 && _pos + valueLen  > _len) {
+            return false;
+        }
+
+        for (int i = 0; i < valueLen; i++) {
+        	if (value.charAt(i) != _working[_pos + i]) {
+        		return false;
+        	}
+        }
+
+        return true;
+    }
+
+    /**
+     * Checks if character at specified position is whitespace.
+     * @param position
+     * @return true is whitespace, false otherwise.
+     */
+    private boolean isWhitespace(int position) {
+    	if (_len >= 0 && position >= _len) {
+            return false;
+        }
+
+        return Character.isWhitespace( _working[position] );
+    }
+
+    /**
+     * Checks if character at current runtime position is whitespace.
+     * @return true is whitespace, false otherwise.
+     */
+    private boolean isWhitespace() {
+        return isWhitespace(_pos);
+    }
+
+    private boolean isWhitespaceSafe() {
+        return Character.isWhitespace( _working[_pos] );
+    }
+
+    /**
+     * Checks if character at specified position is equal to specified char.
+     * @param position
+     * @param ch
+     * @return true is equals, false otherwise.
+     */
+    private boolean isChar(int position, char ch) {
+    	if (_len >= 0 && position >= _len) {
+            return false;
+        }
+
+        return Character.toLowerCase(ch) == Character.toLowerCase(_working[position]);
+    }
+
+    /**
+     * Checks if character at current runtime position is equal to specified char.
+     * @param ch
+     * @return true is equal, false otherwise.
+     */
+    private boolean isChar(char ch) {
+        return isChar(_pos, ch);
+    }
+
+    private boolean isCharSimple(char ch) {
+        return (_len < 0 || _pos < _len) && (ch == _working[_pos]);
+    }
+
+    /**
+     * @return Current character to be read, but first it must be checked if it exists.
+     * This method is made for performance reasons to be used instead of isChar(...).
+     */
+    private char getCurrentChar() {
+        return _working[_pos];
+    }
+
+    private boolean isCharEquals(char ch) {
+        return _working[_pos] == ch;
+    }
+
+    /**
+     * Checks if character at specified position can be identifier start.
+     * @param position
+     * @return true is may be identifier start, false otherwise.
+     */
+    private boolean isIdentifierStartChar(int position) {
+    	if (_len >= 0 && position >= _len) {
+            return false;
+        }
+
+        char ch = _working[position];
+        return Character.isUnicodeIdentifierStart(ch) || ch == '_';
+    }
+
+    /**
+     * Checks if character at current runtime position can be identifier start.
+     * @return true is may be identifier start, false otherwise.
+     */
+    private boolean isIdentifierStartChar() {
+        return isIdentifierStartChar(_pos);
+    }
+
+    /**
+     * Checks if character at current runtime position can be identifier part.
+     * @return true is may be identifier part, false otherwise.
+     */
+    private boolean isIdentifierChar() {
+    	if (_len >= 0 && _pos >= _len) {
+            return false;
+        }
+
+        char ch = _working[_pos];
+        return Character.isUnicodeIdentifierStart(ch) || Character.isDigit(ch) || Utils.isIdentifierHelperChar(ch);
+    }
+
+    private boolean isValidXmlChar() {
+        return isAllRead() || Utils.isValidXmlChar(_working[_pos]);
+    }
+
+    private boolean isValidXmlCharSafe() {
+        return Utils.isValidXmlChar(_working[_pos]);
+    }
+
+    /**
+     * Checks if end of the content is reached.
+     */
+    private boolean isAllRead() {
+        return _len >= 0 && _pos >= _len;
+    }
+
+    /**
+     * Saves specified character to the temporary buffer.
+     * @param ch
+     */
+    private void save(char ch) {
+        if (_savedLen >= _saved.length) {
+            char newSaved[] = new char[_saved.length + 512];
+            System.arraycopy(_saved, 0, newSaved, 0, _saved.length);
+            _saved = newSaved;
+        }
+        _saved[_savedLen++] = ch;
+    }
+
+    /**
+     * Saves character at current runtime position to the temporary buffer.
+     */
+    private void saveCurrent() {
+        if (!isAllRead()) {
+            save( _working[_pos] );
+        }
+    }
+
+    private void saveCurrentSafe() {
+        save( _working[_pos] );
+    }
+
+    /**
+     * Saves specified number of characters at current runtime position to the temporary buffer.
+     * @throws IOException
+     */
+    private void saveCurrent(int size) throws IOException {
+    	readIfNeeded(size);
+        int pos = _pos;
+        while ( !isAllRead() && (size > 0) ) {
+            save( _working[pos] );
+            pos++;
+            size--;
+        }
+    }
+
+    /**
+     * Skips whitespaces at current position and moves foreward until
+     * non-whitespace character is found or the end of content is reached.
+     * @throws IOException
+     */
+    private void skipWhitespaces() throws IOException {
+        while ( !isAllRead() && isWhitespaceSafe() ) {
+            saveCurrentSafe();
+            go();
+        }
+    }
+
+    private boolean addSavedAsContent() {
+        if (_savedLen > 0) {
+            addToken(new ContentNode(_saved, _savedLen));
+            _savedLen = 0;
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Starts parsing HTML.
+     * @throws IOException
+     */
+    void start() throws IOException {
+    	// initialize runtime values
+        _currentTagToken = null;
+        _tokenList.clear();
+        _asExpected = true;
+        _isScriptContext = false;
+
+        boolean isLateForDoctype = false;
+
+        this._pos = WORKING_BUFFER_SIZE;
+        readIfNeeded(0);
+
+        boolean isScriptEmpty = true;
+
+        while ( !isAllRead() ) {
+            // resets all the runtime values
+            _savedLen = 0;
+            _currentTagToken = null;
+            _asExpected = true;
+
+            // this is enough for making decision
+            readIfNeeded(10);
+
+            if (_isScriptContext) {
+                if ( startsWith("</script") && (isWhitespace(_pos + 8) || isChar(_pos + 8, '>')) ) {
+                    tagEnd();
+                } else if ( isScriptEmpty && startsWithSimple("<!--") ) {
+                    comment();
+                } else {
+                    boolean isTokenAdded = content();
+                    if (isScriptEmpty && isTokenAdded) {
+                        final BaseToken lastToken = _tokenList.get(_tokenList.size() - 1);
+                        if (lastToken != null) {
+                            final String lastTokenAsString = lastToken.toString();
+                            if (lastTokenAsString != null && lastTokenAsString.trim().length() > 0) {
+                                isScriptEmpty = false;
+                            }
+                        }
+                    }
+                }
+                if (!_isScriptContext) {
+                    isScriptEmpty = true;
+                }
+            } else {
+                if ( startsWith("<!doctype") ) {
+                	if ( !isLateForDoctype ) {
+                		doctype();
+                		isLateForDoctype = true;
+                	} else {
+                		ignoreUntil('<');
+                	}
+                } else if ( startsWithSimple("</") && isIdentifierStartChar(_pos + 2) ) {
+                	isLateForDoctype = true;
+                    tagEnd();
+                } else if ( startsWithSimple("<!--") ) {
+                    comment();
+                } else if ( startsWithSimple("<") && isIdentifierStartChar(_pos + 1) ) {
+                	isLateForDoctype = true;
+                    tagStart();
+                } else if ( props.isIgnoreQuestAndExclam() && (startsWithSimple("<!") || startsWithSimple("<?")) ) {
+                    ignoreUntil('>');
+                    if (isCharSimple('>')) {
+                        go();
+                    }
+                } else {
+                    content();
+                }
+            }
+        }
+
+        _reader.close();
+    }
+
+    /**
+     * Checks if specified tag name is one of the reserved tags: HTML, HEAD or BODY
+     * @param tagName
+     * @return
+     */
+    private boolean isReservedTag(String tagName) {
+        tagName = tagName.toLowerCase();
+        return "html".equals(tagName) || "head".equals(tagName) || "body".equals(tagName);
+    }
+
+    /**
+     * Parses start of the tag.
+     * It expects that current position is at the "<" after which
+     * the tag's name follows.
+     * @throws IOException
+     */
+    private void tagStart() throws IOException {
+        saveCurrent();
+        go();
+
+        if ( isAllRead() ) {
+            return;
+        }
+
+        String tagName = identifier();
+
+        TagTransformation tagTransformation = null;
+        if (transformations != null && transformations.hasTransformationForTag(tagName)) {
+            tagTransformation = transformations.getTransformation(tagName);
+            if (tagTransformation != null) {
+                tagName = tagTransformation.getDestTag();
+            }
+        }
+
+        if (tagName != null) {
+            TagInfo tagInfo = tagInfoProvider.getTagInfo(tagName);
+            if ( (tagInfo == null && !isOmitUnknownTags && isTreatUnknownTagsAsContent && !isReservedTag(tagName)) ||
+                 (tagInfo != null && tagInfo.isDeprecated() && !isOmitDeprecatedTags && isTreatDeprecatedTagsAsContent) ) {
+                content();
+                return;
+            }
+        }
+
+        TagNode tagNode = createTagNode(tagName);
+        _currentTagToken = tagNode;
+
+        if (_asExpected) {
+            skipWhitespaces();
+            tagAttributes();
+
+            if (tagName != null) {
+                if (tagTransformation != null) {
+                    tagNode.transformAttributes(tagTransformation);
+                }
+                addToken(_currentTagToken);
+            }
+
+            if ( isCharSimple('>') ) {
+            	go();
+                if ( "script".equalsIgnoreCase(tagName) ) {
+                    _isScriptContext = true;
+                }
+            } else if ( startsWithSimple("/>") ) {
+            	go(2);
+                if ( "script".equalsIgnoreCase(tagName) ) {
+                    addToken( new EndTagToken(tagName) );
+                }
+            }
+
+            _currentTagToken = null;
+        } else {
+        	addSavedAsContent();
+        }
+    }
+
+
+    /**
+     * Parses end of the tag.
+     * It expects that current position is at the "<" after which
+     * "/" and the tag's name follows.
+     * @throws IOException
+     */
+    private void tagEnd() throws IOException {
+        saveCurrent(2);
+        go(2);
+
+        if ( isAllRead() ) {
+            return;
+        }
+
+        String tagName = identifier();
+        if (transformations != null && transformations.hasTransformationForTag(tagName)) {
+            TagTransformation tagTransformation = transformations.getTransformation(tagName);
+            if (tagTransformation != null) {
+                tagName = tagTransformation.getDestTag();
+            }
+        }
+
+        if (tagName != null) {
+            TagInfo tagInfo = tagInfoProvider.getTagInfo(tagName);
+            if ( (tagInfo == null && !isOmitUnknownTags && isTreatUnknownTagsAsContent && !isReservedTag(tagName)) ||
+                 (tagInfo != null && tagInfo.isDeprecated() && !isOmitDeprecatedTags && isTreatDeprecatedTagsAsContent) ) {
+                content();
+                return;
+            }
+        }
+
+        _currentTagToken = new EndTagToken(tagName);
+
+        if (_asExpected) {
+            skipWhitespaces();
+            tagAttributes();
+
+            if (tagName != null) {
+                addToken(_currentTagToken);
+            }
+
+            if ( isCharSimple('>') ) {
+            	go();
+            }
+
+            if ( "script".equalsIgnoreCase(tagName) ) {
+                _isScriptContext = false;
+            }
+
+            _currentTagToken = null;
+        } else {
+            addSavedAsContent();
+        }
+    }
+
+    /**
+     * Parses an identifier from the current position.
+     * @throws IOException
+     */
+    private String identifier() throws IOException {
+        _asExpected = true;
+
+        if ( !isIdentifierStartChar() ) {
+            _asExpected = false;
+            return null;
+        }
+
+        commonStr.delete(0, commonStr.length());
+
+        while ( !isAllRead() && isIdentifierChar() ) {
+            saveCurrentSafe();
+            commonStr.append( _working[_pos] );
+            go();
+        }
+
+        // strip invalid characters from the end
+        while ( commonStr.length() > 0 && Utils.isIdentifierHelperChar(commonStr.charAt(commonStr.length() - 1)) ) {
+            commonStr.deleteCharAt( commonStr.length() - 1 );
+        }
+
+        if ( commonStr.length() == 0 ) {
+            return null;
+        }
+
+        String id = commonStr.toString();
+
+        int columnIndex = id.indexOf(':');
+        if (columnIndex >= 0) {
+            String prefix = id.substring(0, columnIndex);
+            String suffix = id.substring(columnIndex + 1);
+            int nextColumnIndex = suffix.indexOf(':');
+            if (nextColumnIndex >= 0) {
+                suffix = suffix.substring(0, nextColumnIndex);
+            }
+            id = isNamespacesAware ? (prefix + ":" + suffix) : suffix;
+        }
+
+        return id;
+    }
+
+    /**
+     * Parses list tag attributes from the current position.
+     * @throws IOException
+     */
+    private void tagAttributes() throws IOException {
+        while( !isAllRead() && _asExpected && !isCharSimple('>') && !startsWithSimple("/>") ) {
+            skipWhitespaces();
+            String attName = identifier();
+
+            if (!_asExpected) {
+                if ( !isCharSimple('<') && !isCharSimple('>') && !startsWithSimple("/>") ) {
+                    if (isValidXmlChar()) {
+                        saveCurrent();
+                    }
+                    go();
+                }
+
+                if (!isCharSimple('<')) {
+                    _asExpected = true;
+                }
+
+                continue;
+            }
+
+            String attValue;
+
+            skipWhitespaces();
+            if ( isCharSimple('=') ) {
+                saveCurrentSafe();
+                go();
+                attValue = attributeValue();
+            } else if (CleanerProperties.BOOL_ATT_EMPTY.equals(props.booleanAttributeValues)) {
+                attValue = "";
+            } else if (CleanerProperties.BOOL_ATT_TRUE.equals(props.booleanAttributeValues)) {
+                attValue = "true";
+            } else {
+                attValue = attName;
+            }
+
+            if (_asExpected) {
+                _currentTagToken.setAttribute(attName, attValue);
+            }
+        }
+    }
+
+    /**
+     * Parses a single tag attribute - it is expected to be in one of the forms:
+     * 		name=value
+     * 		name="value"
+     * 		name='value'
+     * 		name
+     * @throws IOException
+     */
+    private String attributeValue() throws IOException {
+        skipWhitespaces();
+        
+        if ( isCharSimple('<') || isCharSimple('>') || startsWithSimple("/>") ) {
+        	return "";
+        }
+
+        boolean isQuoteMode = false;
+        boolean isAposMode = false;
+
+        commonStr.delete(0, commonStr.length());
+
+        if ( isCharSimple('\'') ) {
+            isAposMode = true;
+            saveCurrentSafe();
+            go();
+        } else if ( isCharSimple('\"') ) {
+            isQuoteMode = true;
+            saveCurrentSafe();
+            go();
+        }
+
+        while ( !isAllRead() &&
+                ( ((isAposMode && !isCharEquals('\'') || isQuoteMode && !isCharEquals('\"')) && (isAllowHtmlInsideAttributes || !isCharEquals('>') && !isCharEquals('<')) && (isAllowMultiWordAttributes || !isWhitespaceSafe())) ||
+                  (!isAposMode && !isQuoteMode && !isWhitespaceSafe() && !isCharEquals('>') && !isCharEquals('<'))
+                )
+              ) {
+            if (isValidXmlCharSafe()) {
+                commonStr.append( _working[_pos] );
+                saveCurrentSafe();
+            }
+            go();
+        }
+
+        if ( isCharSimple('\'') && isAposMode ) {
+            saveCurrentSafe();
+            go();
+        } else if ( isCharSimple('\"') && isQuoteMode ) {
+            saveCurrentSafe();
+            go();
+        }
+
+
+        return commonStr.toString();
+    }
+
+    private boolean content() throws IOException {
+        while ( !isAllRead() ) {
+            if (isValidXmlCharSafe()) {
+                saveCurrentSafe();
+            }
+            go();
+
+            if ( isCharSimple('<') ) {
+                break;
+            }
+        }
+
+        return addSavedAsContent();
+    }
+
+    private void ignoreUntil(char ch) throws IOException {
+        while ( !isAllRead() ) {
+        	go();
+            if ( isChar(ch) ) {
+                break;
+            }
+        }
+    }
+
+    private void comment() throws IOException {
+    	go(4);
+        while ( !isAllRead() && !startsWithSimple("-->") ) {
+            if (isValidXmlCharSafe()) {
+                saveCurrentSafe();
+            }
+            go();
+        }
+
+        if (startsWithSimple("-->")) {
+        	go(3);
+        }
+
+        if (_savedLen > 0) {
+            if (!isOmitComments) {
+                String hyphenRepl = props.getHyphenReplacementInComment();
+                String comment = new String(_saved, 0, _savedLen).replaceAll("--", hyphenRepl + hyphenRepl);
+
+        		if ( comment.length() > 0 && comment.charAt(0) == '-' ) {
+        			comment = hyphenRepl + comment.substring(1);
+        		}
+        		int len = comment.length();
+        		if ( len > 0 && comment.charAt(len - 1) == '-' ) {
+        			comment = comment.substring(0, len - 1) + hyphenRepl;
+        		}
+
+        		addToken( new CommentNode(comment) );
+        	}
+            _savedLen = 0;
+        }
+    }
+    
+    private void doctype() throws IOException {
+    	go(9);
+
+    	skipWhitespaces();
+    	String part1 = identifier();
+	    skipWhitespaces();
+	    String part2 = identifier();
+	    skipWhitespaces();
+	    String part3 = attributeValue();
+	    skipWhitespaces();
+	    String part4 = attributeValue();
+	    
+	    ignoreUntil('<');
+	    
+	    _docType = new DoctypeToken(part1, part2, part3, part4);
+    }
+
+    public DoctypeToken getDocType() {
+        return _docType;
+    }
+    
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/ITagInfoProvider.java.svn-base b/src/org/htmlcleaner/.svn/text-base/ITagInfoProvider.java.svn-base
new file mode 100644
index 0000000..5b8bc44
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/ITagInfoProvider.java.svn-base
@@ -0,0 +1,52 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+/**
+ * <p>
+ * Provides set of TagInfo instances. The instance of this interface is used as a
+ * collection of tag definitions used in cleanup process. Implementing this interface
+ * desired behaviour of cleaner can be achived.<br/>
+ * In most cases implementation will be or contain a kind of Map.
+ * </p>
+ */
+public interface ITagInfoProvider {
+
+    public TagInfo getTagInfo(String tagName);
+
+}
diff --git a/src/org/htmlcleaner/.svn/text-base/JDomSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/JDomSerializer.java.svn-base
new file mode 100644
index 0000000..b4077de
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/JDomSerializer.java.svn-base
@@ -0,0 +1,161 @@
+package org.htmlcleaner;
+
+import org.jdom.*;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * <p>JDom serializer - creates xml JDom instance out of the TagNode.</p>
+ */
+public class JDomSerializer {
+
+    private DefaultJDOMFactory factory;
+
+    protected CleanerProperties props;
+    protected boolean escapeXml = true;
+
+    public JDomSerializer(CleanerProperties props, boolean escapeXml) {
+        this.props = props;
+        this.escapeXml = escapeXml;
+    }
+
+    public JDomSerializer(CleanerProperties props) {
+        this(props, true);
+    }
+
+    public Document createJDom(TagNode rootNode) {
+        this.factory = new DefaultJDOMFactory();
+        Element rootElement = createElement(rootNode);
+        Document document = this.factory.document(rootElement);
+
+        setAttributes(rootNode, rootElement);
+
+        createSubnodes(rootElement, rootNode.getChildren());
+
+        return document;
+    }
+
+    private Element createElement(TagNode node) {
+        String name = node.getName();
+        boolean nsAware = props.isNamespacesAware();
+        String prefix = Utils.getXmlNSPrefix(name);
+        Map<String, String> nsDeclarations = node.getNamespaceDeclarations();
+        String nsURI = null;
+        if (prefix != null) {
+            name = Utils.getXmlName(name);
+            if (nsAware) {
+                if (nsDeclarations != null) {
+                    nsURI = nsDeclarations.get(prefix);
+                }
+                if (nsURI == null) {
+                    nsURI = node.getNamespaceURIOnPath(prefix);
+                }
+                if (nsURI == null) {
+                    nsURI = prefix;
+                }
+            }
+        } else {
+            if (nsAware) {
+                if (nsDeclarations != null) {
+                    nsURI = nsDeclarations.get("");
+                }
+                if (nsURI == null) {
+                    nsURI = node.getNamespaceURIOnPath(prefix);
+                }
+            }
+        }
+
+        Element element;
+        if (nsAware && nsURI != null) {
+            Namespace ns = prefix == null ? Namespace.getNamespace(nsURI) : Namespace.getNamespace(prefix, nsURI);
+            element = factory.element(name, ns);
+        } else {
+            element = factory.element(name);
+        }
+
+        if (nsAware) {
+            defineNamespaceDeclarations(node, element);
+        }
+        return element;
+    }
+
+    private void defineNamespaceDeclarations(TagNode node, Element element) {
+        Map<String, String> nsDeclarations = node.getNamespaceDeclarations();
+        if (nsDeclarations != null) {
+            for (Map.Entry<String, String> nsEntry: nsDeclarations.entrySet()) {
+                String nsPrefix = nsEntry.getKey();
+                String nsURI = nsEntry.getValue();
+                Namespace ns = nsPrefix == null || "".equals(nsPrefix) ? Namespace.getNamespace(nsURI) : Namespace.getNamespace(nsPrefix, nsURI);
+                element.addNamespaceDeclaration(ns);
+            }
+        }
+    }
+
+    private void setAttributes(TagNode node, Element element) {
+        for (Map.Entry<String, String> entry: node.getAttributes().entrySet()) {
+            String attrName = entry.getKey();
+            String attrValue = entry.getValue();
+            if (escapeXml) {
+                attrValue = Utils.escapeXml(attrValue, props, true);
+            }
+            String attPrefix = Utils.getXmlNSPrefix(attrName);
+            Namespace ns = null;
+            if (attPrefix != null) {
+                attrName = Utils.getXmlName(attrName);
+                if (props.isNamespacesAware()) {
+                    String nsURI = node.getNamespaceURIOnPath(attPrefix);
+                    if (nsURI == null) {
+                        nsURI = attPrefix;
+                    }
+                    ns = Namespace.getNamespace(attPrefix, nsURI);
+                }
+            }
+            if (ns == null) {
+                element.setAttribute(attrName, attrValue);
+            } else {
+                element.setAttribute(attrName, attrValue, ns);
+            }
+        }
+    }
+
+    private void createSubnodes(Element element, List tagChildren) {
+        if (tagChildren != null) {
+            Iterator it = tagChildren.iterator();
+            while (it.hasNext()) {
+                Object item = it.next();
+                if (item instanceof CommentNode) {
+                    CommentNode commentNode = (CommentNode) item;
+                    Comment comment = factory.comment( commentNode.getContent().toString() );
+                    element.addContent(comment);
+                } else if (item instanceof ContentNode) {
+                    String nodeName = element.getName();
+                    String content = item.toString();
+                    boolean specialCase = props.isUseCdataForScriptAndStyle() &&
+                                          ("script".equalsIgnoreCase(nodeName) || "style".equalsIgnoreCase(nodeName));                    
+                    if (escapeXml && !specialCase) {
+                        content = Utils.escapeXml(content, props, true);
+                    }
+                    Text text = specialCase ? factory.cdata(content) : factory.text(content);
+                    element.addContent(text);
+                } else if (item instanceof TagNode) {
+                    TagNode subTagNode = (TagNode) item;
+                    Element subelement = createElement(subTagNode);
+
+                    setAttributes(subTagNode, subelement);
+
+                    // recursively create subnodes
+                    createSubnodes(subelement, subTagNode.getChildren());
+
+                    element.addContent(subelement);
+                } else if (item instanceof List) {
+                    List sublist = (List) item;
+                    createSubnodes(element, sublist);
+                }
+            }
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/PrettyHtmlSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/PrettyHtmlSerializer.java.svn-base
new file mode 100644
index 0000000..d609cc8
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/PrettyHtmlSerializer.java.svn-base
@@ -0,0 +1,212 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * <p>Pretty HTML serializer - creates resulting HTML with indenting lines.</p>
+ */
+public class PrettyHtmlSerializer extends HtmlSerializer {
+
+	private static final String DEFAULT_INDENTATION_STRING = "\t";
+
+    private String indentString = DEFAULT_INDENTATION_STRING;
+    private List<String> indents = new ArrayList<String>();
+
+	public PrettyHtmlSerializer(CleanerProperties props) {
+		this(props, DEFAULT_INDENTATION_STRING);
+	}
+
+	public PrettyHtmlSerializer(CleanerProperties props, String indentString) {
+		super(props);
+        this.indentString = indentString;
+	}
+
+	protected void serialize(TagNode tagNode, Writer writer) throws IOException {
+		serializePrettyHtml(tagNode, writer, 0, false, true);
+	}
+
+	/**
+	 * @param level
+	 * @return Appropriate indentation for the specified depth.
+	 */
+    private synchronized String getIndent(int level) {
+        int size = indents.size();
+        if (size <= level) {
+            String prevIndent = size == 0 ? null : indents.get(size - 1);
+            for (int i = size; i <= level; i++) {
+                String currIndent = prevIndent == null ? "" : prevIndent + indentString;
+                indents.add(currIndent);
+                prevIndent = currIndent;
+            }
+        }
+
+        return indents.get(level);
+    }
+
+    private String getIndentedText(String content, int level) {
+        String indent = getIndent(level);
+        StringBuilder result = new StringBuilder( content.length() );
+        StringTokenizer tokenizer = new StringTokenizer(content, "\n\r");
+
+        while (tokenizer.hasMoreTokens()) {
+            String line = tokenizer.nextToken().trim();
+            if (!"".equals(line)) {
+                result.append(indent).append(line).append("\n");
+            }
+        }
+
+        return result.toString();
+    }
+
+    private String getSingleLineOfChildren(List children) {
+        StringBuilder result = new StringBuilder();
+        Iterator childrenIt = children.iterator();
+        boolean isFirst = true;
+
+        while (childrenIt.hasNext()) {
+            Object child = childrenIt.next();
+
+            if ( !(child instanceof ContentNode) ) {
+                return null;
+            } else {
+                String content = child.toString();
+
+                // if first item trims it from left
+                if (isFirst) {
+                	content = Utils.ltrim(content);
+                }
+
+                // if last item trims it from right
+                if (!childrenIt.hasNext()) {
+                	content = Utils.rtrim(content);
+                }
+
+                if ( content.indexOf("\n") >= 0 || content.indexOf("\r") >= 0 ) {
+                    return null;
+                }
+                result.append(content);
+            }
+
+            isFirst = false;
+        }
+
+        return result.toString();
+    }
+
+    protected void serializePrettyHtml(TagNode tagNode, Writer writer, int level, boolean isPreserveWhitespaces, boolean isLastNewLine) throws IOException {
+        List tagChildren = tagNode.getChildren();
+        String tagName = tagNode.getName();
+        boolean isHeadlessNode = Utils.isEmptyString(tagName);
+        String indent = isHeadlessNode ? "" : getIndent(level);
+
+        if (!isPreserveWhitespaces) {
+            if (!isLastNewLine) {
+                writer.write("\n");
+            }
+            writer.write(indent);
+        }
+        serializeOpenTag(tagNode, writer, true);
+
+        boolean preserveWhitespaces = isPreserveWhitespaces || "pre".equalsIgnoreCase(tagName);
+
+        boolean lastWasNewLine = false;
+
+        if ( !isMinimizedTagSyntax(tagNode) ) {
+            String singleLine = getSingleLineOfChildren(tagChildren);
+            boolean dontEscape = dontEscape(tagNode);
+            if (!preserveWhitespaces && singleLine != null) {
+                writer.write( !dontEscape(tagNode) ? escapeText(singleLine) : singleLine );
+            } else {
+                Iterator childIterator = tagChildren.iterator();
+                while (childIterator.hasNext()) {
+                    Object child = childIterator.next();
+                    if (child instanceof TagNode) {
+                        serializePrettyHtml((TagNode)child, writer, isHeadlessNode ? level : level + 1, preserveWhitespaces, lastWasNewLine);
+                        lastWasNewLine = false;
+                    } else if (child instanceof ContentNode) {
+                        String content = dontEscape ? child.toString() : escapeText(child.toString());
+                        if (content.length() > 0) {
+                            if (dontEscape || preserveWhitespaces) {
+                                writer.write(content);
+                            } else if (Character.isWhitespace(content.charAt(0))) {
+                                if (!lastWasNewLine) {
+                                    writer.write("\n");
+                                    lastWasNewLine = false;
+                                }
+                                if (content.trim().length() > 0) {
+                                    writer.write( getIndentedText(Utils.rtrim(content), isHeadlessNode ? level : level + 1) );
+                                } else {
+                                    lastWasNewLine = true;
+                                }
+                            } else {
+                                if (content.trim().length() > 0) {
+                                    writer.write(Utils.rtrim(content));
+                                }
+                                if (!childIterator.hasNext()) {
+                                    writer.write("\n");
+                                    lastWasNewLine = true;
+                                }
+                            }
+                        }
+                    } else if (child instanceof CommentNode) {
+                        if (!lastWasNewLine && !preserveWhitespaces) {
+                            writer.write("\n");
+                            lastWasNewLine = false;
+                        }
+                        CommentNode commentNode = (CommentNode) child;
+                        String content = commentNode.getCommentedContent();
+                        writer.write( dontEscape ? content : getIndentedText(content, isHeadlessNode ? level : level + 1) );
+                    }
+                }
+            }
+
+            if (singleLine == null && !preserveWhitespaces) {
+                if (!lastWasNewLine) {
+                    writer.write("\n");
+                }
+            	writer.write(indent);
+            }
+
+            serializeEndTag(tagNode, writer, false);
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/PrettyXmlSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/PrettyXmlSerializer.java.svn-base
new file mode 100644
index 0000000..b82507f
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/PrettyXmlSerializer.java.svn-base
@@ -0,0 +1,178 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.util.*;
+
+/**
+ * <p>Pretty XML serializer - creates resulting XML with indenting lines.</p>
+ */
+public class PrettyXmlSerializer extends XmlSerializer {
+
+	private static final String DEFAULT_INDENTATION_STRING = "\t";
+
+    private String indentString = DEFAULT_INDENTATION_STRING;
+    private List<String> indents = new ArrayList<String>();
+
+	public PrettyXmlSerializer(CleanerProperties props) {
+		this(props, DEFAULT_INDENTATION_STRING);
+	}
+
+	public PrettyXmlSerializer(CleanerProperties props, String indentString) {
+		super(props);
+        this.indentString = indentString;
+	}
+
+	protected void serialize(TagNode tagNode, Writer writer) throws IOException {
+		serializePrettyXml(tagNode, writer, 0);
+	}
+
+	/**
+	 * @param level
+	 * @return Appropriate indentation for the specified depth.
+	 */
+    private synchronized String getIndent(int level) {
+        int size = indents.size();
+        if (size <= level) {
+            String prevIndent = size == 0 ? null : indents.get(size - 1);
+            for (int i = size; i <= level; i++) {
+                String currIndent = prevIndent == null ? "" : prevIndent + indentString;
+                indents.add(currIndent);
+                prevIndent = currIndent;
+            }
+        }
+
+        return indents.get(level);
+    }
+
+    private String getIndentedText(String content, int level) {
+        String indent = getIndent(level);
+        StringBuilder result = new StringBuilder( content.length() );
+        StringTokenizer tokenizer = new StringTokenizer(content, "\n\r");
+
+        while (tokenizer.hasMoreTokens()) {
+            String line = tokenizer.nextToken().trim();
+            if (!"".equals(line)) {
+                result.append(indent).append(line).append("\n");
+            }
+        }
+
+        return result.toString();
+    }
+
+    private String getSingleLineOfChildren(List children) {
+        StringBuilder result = new StringBuilder();
+        Iterator childrenIt = children.iterator();
+        boolean isFirst = true;
+
+        while (childrenIt.hasNext()) {
+            Object child = childrenIt.next();
+
+            if ( !(child instanceof ContentNode) ) {
+                return null;
+            } else {
+                String content = child.toString();
+
+                // if first item trims it from left
+                if (isFirst) {
+                	content = Utils.ltrim(content);
+                }
+
+                // if last item trims it from right
+                if (!childrenIt.hasNext()) {
+                	content = Utils.rtrim(content);
+                }
+
+                if ( content.indexOf("\n") >= 0 || content.indexOf("\r") >= 0 ) {
+                    return null;
+                }
+                result.append(content);
+            }
+
+            isFirst = false;
+        }
+
+        return result.toString();
+    }
+
+    protected void serializePrettyXml(TagNode tagNode, Writer writer, int level) throws IOException {
+        List tagChildren = tagNode.getChildren();
+        boolean isHeadlessNode = Utils.isEmptyString(tagNode.getName());
+        String indent = isHeadlessNode ? "" : getIndent(level);
+
+        writer.write(indent);
+        serializeOpenTag(tagNode, writer, true);
+
+        if ( !isMinimizedTagSyntax(tagNode) ) {
+            String singleLine = getSingleLineOfChildren(tagChildren);
+            boolean dontEscape = dontEscape(tagNode);
+            if (singleLine != null) {
+            	if ( !dontEscape(tagNode) ) {
+            		writer.write( escapeXml(singleLine) );
+            	} else {
+            		writer.write( singleLine.replaceAll("]]>", "]]&gt;") );
+            	}
+            } else {
+                if (!isHeadlessNode) {
+            	    writer.write("\n");
+                }
+                for (Object child: tagChildren) {
+                    if (child instanceof TagNode) {
+                        serializePrettyXml( (TagNode)child, writer, isHeadlessNode ? level : level + 1 );
+                    } else if (child instanceof ContentNode) {
+                        String content = dontEscape ? child.toString().replaceAll("]]>", "]]&gt;") : escapeXml(child.toString());
+                        writer.write( getIndentedText(content, isHeadlessNode ? level : level + 1) );
+                    } else if (child instanceof CommentNode) {
+                        CommentNode commentNode = (CommentNode) child;
+                        String content = commentNode.getCommentedContent();
+                        writer.write( getIndentedText(content, isHeadlessNode ? level : level + 1) );
+                    }
+                }
+            }
+
+            if (singleLine == null) {
+            	writer.write(indent);
+            }
+
+            serializeEndTag(tagNode, writer, true);
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/Serializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/Serializer.java.svn-base
new file mode 100644
index 0000000..e019d57
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/Serializer.java.svn-base
@@ -0,0 +1,263 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * <p>Basic abstract serializer - contains common logic for descendants (methods <code>writeXXX()</code>.</p>
+ */
+public abstract class Serializer {
+
+    /**
+     * Used to implement serialization with missing envelope - omiting open and close tags, just
+     * serialize children.
+     */
+    private class HeadlessTagNode extends TagNode {
+        private HeadlessTagNode(TagNode wrappedNode) {
+            super("");
+            getAttributes().putAll(wrappedNode.getAttributes());
+            getChildren().addAll(wrappedNode.getChildren());
+            setDocType(wrappedNode.getDocType());
+            Map<String, String> nsDecls = getNamespaceDeclarations();
+            if (nsDecls != null) {
+                Map<String, String> wrappedNSDecls = wrappedNode.getNamespaceDeclarations();
+                if (wrappedNSDecls != null) {
+                    nsDecls.putAll(wrappedNSDecls);
+                }
+            }
+
+        }
+    }
+
+	protected CleanerProperties props;
+
+	protected Serializer(CleanerProperties props) {
+		this.props = props;
+    }
+
+    /**
+     * Writes specified TagNode to the output stream, using specified charset and optionally omits node envelope
+     * (skips open and close tags of the node).
+     * @param tagNode Node to be written
+     * @param out Output stream
+     * @param charset Charset of the output
+     * @param omitEnvelope Tells whether to skip open and close tag of the node.
+     * @throws IOException
+     */
+    public void writeToStream(TagNode tagNode, OutputStream out, String charset, boolean omitEnvelope) throws IOException {
+         write( tagNode, new OutputStreamWriter(out, charset), charset, omitEnvelope );
+    }
+
+    /**
+     * Writes specified TagNode to the output stream, using specified charset.
+     * @param tagNode Node to be written
+     * @param out Output stream
+     * @param charset Charset of the output
+     * @throws IOException
+     */
+    public void writeToStream(TagNode tagNode, OutputStream out, String charset) throws IOException {
+         writeToStream(tagNode, out, charset, false);
+    }
+
+    /**
+     * Writes specified TagNode to the output stream, using system default charset and optionally omits node envelope
+     * (skips open and close tags of the node).
+     * @param tagNode Node to be written
+     * @param out Output stream
+     * @param omitEnvelope Tells whether to skip open and close tag of the node.
+     * @throws IOException
+     */
+    public void writeToStream(TagNode tagNode, OutputStream out, boolean omitEnvelope) throws IOException {
+         writeToStream( tagNode, out, HtmlCleaner.DEFAULT_CHARSET, omitEnvelope );
+    }
+
+    /**
+     * Writes specified TagNode to the output stream, using system default charset.
+     * @param tagNode Node to be written
+     * @param out Output stream
+     * @throws IOException
+     */
+    public void writeToStream(TagNode tagNode, OutputStream out) throws IOException {
+         writeToStream(tagNode, out, false);
+    }
+
+    /**
+     * Writes specified TagNode to the file, using specified charset and optionally omits node envelope
+     * (skips open and close tags of the node).
+     * @param tagNode Node to be written
+     * @param fileName Output file name
+     * @param charset Charset of the output
+     * @param omitEnvelope Tells whether to skip open and close tag of the node.
+     * @throws IOException
+     */
+    public void writeToFile(TagNode tagNode, String fileName, String charset, boolean omitEnvelope) throws IOException {
+        writeToStream(tagNode, new FileOutputStream(fileName), charset, omitEnvelope );
+    }
+
+    /**
+     * Writes specified TagNode to the file, using specified charset.
+     * @param tagNode Node to be written
+     * @param fileName Output file name
+     * @param charset Charset of the output
+     * @throws IOException
+     */
+    public void writeToFile(TagNode tagNode, String fileName, String charset) throws IOException {
+        writeToFile(tagNode, fileName, charset, false);
+    }
+
+    /**
+     * Writes specified TagNode to the file, using specified charset and optionally omits node envelope
+     * (skips open and close tags of the node).
+     * @param tagNode Node to be written
+     * @param fileName Output file name
+     * @param omitEnvelope Tells whether to skip open and close tag of the node.
+     * @throws IOException
+     */
+    public void writeToFile(TagNode tagNode, String fileName, boolean omitEnvelope) throws IOException {
+        writeToFile(tagNode,fileName, HtmlCleaner.DEFAULT_CHARSET, omitEnvelope);
+    }
+
+    /**
+     * Writes specified TagNode to the file, using system default charset.
+     * @param tagNode Node to be written
+     * @param fileName Output file name
+     * @throws IOException
+     */
+    public void writeToFile(TagNode tagNode, String fileName) throws IOException {
+        writeToFile(tagNode, fileName, false);
+    }
+
+    /**
+     * @param tagNode Node to serialize to string
+     * @param charset Charset of the output - stands in xml declaration part
+     * @param omitEnvelope Tells whether to skip open and close tag of the node.
+     * @return Output as string
+     * @throws IOException
+     */
+    public String getAsString(TagNode tagNode, String charset, boolean omitEnvelope) throws IOException {
+        StringWriter writer = new StringWriter();
+        write(tagNode, writer, charset, omitEnvelope);
+        return writer.getBuffer().toString();
+    }
+
+    /**
+     * @param tagNode Node to serialize to string
+     * @param charset Charset of the output - stands in xml declaration part
+     * @return Output as string
+     * @throws IOException
+     */
+    public String getAsString(TagNode tagNode, String charset) throws IOException {
+        return getAsString(tagNode, charset, false);
+    }
+
+    /**
+     * @param tagNode Node to serialize to string
+     * @param omitEnvelope Tells whether to skip open and close tag of the node.
+     * @return Output as string
+     * @throws IOException
+     */
+    public String getAsString(TagNode tagNode, boolean omitEnvelope) throws IOException {
+        return getAsString(tagNode, HtmlCleaner.DEFAULT_CHARSET, omitEnvelope);
+    }
+
+    /**
+     * @param tagNode Node to serialize to string
+     * @return Output as string
+     * @throws IOException
+     */
+    public String getAsString(TagNode tagNode) throws IOException {
+        return getAsString(tagNode, false);
+    }
+
+    /**
+     * Writes specified node using specified writer.
+     * @param tagNode Node to serialize.
+     * @param writer Writer instance
+     * @param charset Charset of the output
+     * @throws IOException
+     */
+    public void write(TagNode tagNode, Writer writer, String charset) throws IOException {
+        write(tagNode, writer, charset, false);
+    }
+
+    /**
+     * Writes specified node using specified writer.
+     * @param tagNode Node to serialize.
+     * @param writer Writer instance
+     * @param charset Charset of the output
+     * @param omitEnvelope Tells whether to skip open and close tag of the node.
+     * @throws IOException
+     */
+    public void write(TagNode tagNode, Writer writer, String charset, boolean omitEnvelope) throws IOException {
+        if (omitEnvelope) {
+            tagNode = new HeadlessTagNode(tagNode);
+        }
+        writer = new BufferedWriter(writer);
+        if ( !props.isOmitXmlDeclaration() ) {
+            String declaration = "<?xml version=\"1.0\"";
+            if (charset != null) {
+                declaration += " encoding=\"" + charset + "\"";
+            }
+            declaration += "?>";
+            writer.write(declaration + "\n");
+		}
+		
+		if ( !props.isOmitDoctypeDeclaration() ) {
+			DoctypeToken doctypeToken = tagNode.getDocType();
+			if ( doctypeToken != null ) {
+				doctypeToken.serialize(this, writer);
+			}
+		}
+		
+		serialize(tagNode, writer);
+
+        writer.flush();
+        writer.close();
+    }
+
+
+    protected boolean isScriptOrStyle(TagNode tagNode) {
+        String tagName = tagNode.getName();
+        return "script".equalsIgnoreCase(tagName) || "style".equalsIgnoreCase(tagName);
+    }
+    
+    protected abstract void serialize(TagNode tagNode, Writer writer) throws IOException;
+	
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/SimpleHtmlSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/SimpleHtmlSerializer.java.svn-base
new file mode 100644
index 0000000..f5f0ed1
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/SimpleHtmlSerializer.java.svn-base
@@ -0,0 +1,68 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.*;
+
+/**
+ * <p>Simple HTML serializer - creates resulting HTML without indenting and/or compacting.</p>
+ */
+public class SimpleHtmlSerializer extends HtmlSerializer {
+
+	public SimpleHtmlSerializer(CleanerProperties props) {
+		super(props);
+	}
+
+    protected void serialize(TagNode tagNode, Writer writer) throws IOException {
+        serializeOpenTag(tagNode, writer, false);
+
+        if ( !isMinimizedTagSyntax(tagNode) ) {
+            for (Object item: tagNode.getChildren()) {
+                if ( item instanceof ContentNode) {
+                    String content = item.toString();
+                    writer.write( dontEscape(tagNode) ? content : escapeText(content) );
+                } else if (item instanceof BaseToken) {
+                    ((BaseToken)item).serialize(this, writer);
+                }
+            }
+
+            serializeEndTag(tagNode, writer, false);
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/SimpleXmlSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/SimpleXmlSerializer.java.svn-base
new file mode 100644
index 0000000..0231b94
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/SimpleXmlSerializer.java.svn-base
@@ -0,0 +1,69 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * <p>Simple XML serializer - creates resulting XML without indenting lines.</p>
+ */
+public class SimpleXmlSerializer extends XmlSerializer {
+
+	public SimpleXmlSerializer(CleanerProperties props) {
+		super(props);
+	}
+
+    protected void serialize(TagNode tagNode, Writer writer) throws IOException {
+        serializeOpenTag(tagNode, writer, false);
+
+        if ( !isMinimizedTagSyntax(tagNode) ) {
+            for (Object item: tagNode.getChildren()) {
+                if ( item instanceof ContentNode) {
+                    String content = item.toString();
+                    writer.write( dontEscape(tagNode) ? content.replaceAll("]]>", "]]&gt;") : escapeXml(content) );
+                } else if (item instanceof BaseToken) {
+                    ((BaseToken)item).serialize(this, writer);
+                }
+            }
+
+            serializeEndTag(tagNode, writer, false);
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/SpecialEntity.java.svn-base b/src/org/htmlcleaner/.svn/text-base/SpecialEntity.java.svn-base
new file mode 100644
index 0000000..4b6c447
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/SpecialEntity.java.svn-base
@@ -0,0 +1,377 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * <p>This class contains map with special entities used in HTML and their unicodes.</p>
+ */
+public class SpecialEntity {
+	
+	private static Map<String, SpecialEntity> entities = new HashMap<String, SpecialEntity>();
+
+    private static int maxEntityLength = 0;
+
+    /**
+     * Add new entity to the set.
+     * @param entityName Entity name, for example "pound"
+     * @param intCode Unicode of the entity, for example 163
+     *
+     * @throws org.htmlcleaner.HtmlCleanerException
+     */
+    public static void addEntity(String entityName, int intCode) throws HtmlCleanerException {
+        if (entities.containsKey(entityName)) {
+            throw new HtmlCleanerException("Entity \"" + entityName + "\" is already defined!");
+        }
+        entities.put(entityName, new SpecialEntity(entityName, intCode));
+        int entityNameLen = entityName.length();
+        if (entityNameLen > maxEntityLength) {
+            maxEntityLength = entityNameLen;
+        };
+    }
+
+    public static SpecialEntity getEntity(String key) {
+        return entities.get(key);
+    }
+
+    static int getMaxEntityLength() {
+        return maxEntityLength;
+    }
+
+    static {
+        addEntity("nbsp", 160);
+        addEntity("iexcl", 161);
+        addEntity("cent", 162);
+        addEntity("pound", 163);
+        addEntity("curren", 164);
+        addEntity("yen", 165);
+        addEntity("brvbar", 166);
+        addEntity("sect", 167);
+        addEntity("uml", 168);
+        addEntity("copy", 169);
+        addEntity("ordf", 170);
+        addEntity("laquo", 171);
+        addEntity("not", 172);
+        addEntity("shy", 173);
+        addEntity("reg", 174);
+        addEntity("macr", 175);
+        addEntity("deg", 176);
+        addEntity("plusmn", 177);
+        addEntity("sup2", 178);
+        addEntity("sup3", 179);
+        addEntity("acute", 180);
+        addEntity("micro", 181);
+        addEntity("para", 182);
+        addEntity("middot", 183);
+        addEntity("cedil", 184);
+        addEntity("sup1", 185);
+        addEntity("ordm", 186);
+        addEntity("raquo", 187);
+        addEntity("frac14", 188);
+        addEntity("frac12", 189);
+        addEntity("frac34", 190);
+        addEntity("iquest", 191);
+        addEntity("Agrave", 192);
+        addEntity("Aacute", 193);
+        addEntity("Acirc", 194);
+        addEntity("Atilde", 195);
+        addEntity("Auml", 196);
+        addEntity("Aring", 197);
+        addEntity("AElig", 198);
+        addEntity("Ccedil", 199);
+        addEntity("Egrave", 200);
+        addEntity("Eacute", 201);
+        addEntity("Ecirc", 202);
+        addEntity("Euml", 203);
+        addEntity("Igrave", 204);
+        addEntity("Iacute", 205);
+        addEntity("Icirc", 206);
+        addEntity("Iuml", 207);
+        addEntity("ETH", 208);
+        addEntity("Ntilde", 209);
+        addEntity("Ograve", 210);
+        addEntity("Oacute", 211);
+        addEntity("Ocirc", 212);
+        addEntity("Otilde", 213);
+        addEntity("Ouml", 214);
+        addEntity("times", 215);
+        addEntity("Oslash", 216);
+        addEntity("Ugrave", 217);
+        addEntity("Uacute", 218);
+        addEntity("Ucirc", 219);
+        addEntity("Uuml", 220);
+        addEntity("Yacute", 221);
+        addEntity("THORN", 222);
+        addEntity("szlig", 223);
+        addEntity("agrave", 224);
+        addEntity("aacute", 225);
+        addEntity("acirc", 226);
+        addEntity("atilde", 227);
+        addEntity("auml", 228);
+        addEntity("aring", 229);
+        addEntity("aelig", 230);
+        addEntity("ccedil", 231);
+        addEntity("egrave", 232);
+        addEntity("eacute", 233);
+        addEntity("ecirc", 234);
+        addEntity("euml", 235);
+        addEntity("igrave", 236);
+        addEntity("iacute", 237);
+        addEntity("icirc", 238);
+        addEntity("iuml", 239);
+        addEntity("eth", 240);
+        addEntity("ntilde", 241);
+        addEntity("ograve", 242);
+        addEntity("oacute", 243);
+        addEntity("ocirc", 244);
+        addEntity("otilde", 245);
+        addEntity("ouml", 246);
+        addEntity("divide", 247);
+        addEntity("oslash", 248);
+        addEntity("ugrave", 249);
+        addEntity("uacute", 250);
+        addEntity("ucirc", 251);
+        addEntity("uuml", 252);
+        addEntity("yacute", 253);
+        addEntity("thorn", 254);
+        addEntity("yuml", 255);
+        addEntity("OElig", 338);
+        addEntity("oelig", 339);
+        addEntity("Scaron", 352);
+        addEntity("scaron", 353);
+        addEntity("Yuml", 376);
+        addEntity("fnof", 402);
+        addEntity("circ", 710);
+        addEntity("tilde", 732);
+
+        // Greek letters
+        addEntity("Alpha", 913);
+        addEntity("Beta", 914);
+        addEntity("Gamma", 915);
+        addEntity("Delta", 916);
+        addEntity("Epsilon", 917);
+        addEntity("Zeta", 918);
+        addEntity("Eta", 919);
+        addEntity("Theta", 920);
+        addEntity("Iota", 921);
+        addEntity("Kappa", 922);
+        addEntity("Lambda", 923);
+        addEntity("Mu", 924);
+        addEntity("Nu", 925);
+        addEntity("Xi", 926);
+        addEntity("Omicron", 927);
+        addEntity("Pi", 928);
+        addEntity("Rho", 929);
+        addEntity("Sigma", 931);
+        addEntity("Tau", 932);
+        addEntity("Upsilon", 933);
+        addEntity("Phi", 934);
+        addEntity("Chi", 935);
+        addEntity("Psi", 936);
+        addEntity("Omega", 937);
+        addEntity("alpha", 945);
+        addEntity("beta", 946);
+        addEntity("gamma", 947);
+        addEntity("delta", 948);
+        addEntity("epsilon", 949);
+        addEntity("zeta", 950);
+        addEntity("eta", 951);
+        addEntity("theta", 952);
+        addEntity("iota", 953);
+        addEntity("kappa", 954);
+        addEntity("lambda", 955);
+        addEntity("mu", 956);
+        addEntity("nu", 957);
+        addEntity("xi", 958);
+        addEntity("omicron", 959);
+        addEntity("pi", 960);
+        addEntity("rho", 961);
+        addEntity("sigmaf", 962);
+        addEntity("sigma", 963);
+        addEntity("tau", 964);
+        addEntity("upsilon", 965);
+        addEntity("phi", 966);
+        addEntity("chi", 967);
+        addEntity("psi", 968);
+        addEntity("omega", 969);
+        addEntity("thetasym", 977);
+        addEntity("upsih", 978);
+        addEntity("piv", 982);
+
+        addEntity("ensp", 8194);
+        addEntity("emsp", 8195);
+        addEntity("thinsp", 8201);
+        addEntity("zwnj", 8204);
+        addEntity("zwj", 8205);
+        addEntity("lrm", 8206);
+        addEntity("rlm", 8207);
+        addEntity("ndash", 8211);
+        addEntity("mdash", 8212);
+        addEntity("lsquo", 8216);
+        addEntity("rsquo", 8217);
+        addEntity("sbquo", 8218);
+        addEntity("ldquo", 8220);
+        addEntity("rdquo", 8221);
+        addEntity("bdquo", 8222);
+        addEntity("dagger", 8224);
+        addEntity("Dagger", 8225);
+        addEntity("bull", 8226);
+
+        addEntity("hellip", 8230);
+        addEntity("permil", 8240);
+        addEntity("prime", 8242);
+        addEntity("Prime", 8243);
+        addEntity("lsaquo", 8249);
+        addEntity("rsaquo", 8250);
+        addEntity("oline", 8254);
+        addEntity("frasl", 8260);
+        addEntity("euro", 8364);
+        addEntity("image", 8465);
+        addEntity("weierp", 8472);
+        addEntity("real", 8476);
+        addEntity("trade", 8482);
+        addEntity("alefsym", 8501);
+        addEntity("larr", 8592);
+        addEntity("uarr", 8593);
+        addEntity("rarr", 8594);
+        addEntity("darr", 8595);
+        addEntity("harr", 8596);
+        addEntity("crarr", 8629);
+        addEntity("lArr", 8656);
+        addEntity("uArr", 8657);
+        addEntity("rArr", 8658);
+        addEntity("dArr", 8659);
+        addEntity("hArr", 8660);
+        
+        // math symbols
+        addEntity("forall", 8704);
+        addEntity("part", 8706);
+        addEntity("exist", 8707);
+        addEntity("empty", 8709);
+        addEntity("nabla", 8711);
+        addEntity("isin", 8712);
+        addEntity("notin", 8713);
+        addEntity("ni", 8715);
+        addEntity("prod", 8719);
+        addEntity("sum", 8721);
+        addEntity("minus", 8722);
+        addEntity("lowast", 8727);
+        addEntity("radic", 8730);
+        addEntity("prop", 8733);
+        addEntity("infin", 8734);
+        addEntity("ang", 8736);
+        addEntity("and", 8743);
+        addEntity("or", 8744);
+        addEntity("cap", 8745);
+        addEntity("cup", 8746);
+        addEntity("int", 8747);
+        addEntity("there4", 8756);
+        addEntity("sim", 8764);
+        addEntity("cong", 8773);
+        addEntity("asymp", 8776);
+        addEntity("ne", 8800);
+        addEntity("equiv", 8801);
+        addEntity("le", 8804);
+        addEntity("ge", 8805);
+        addEntity("sub", 8834);
+        addEntity("sup", 8835);
+        addEntity("nsub", 8836);
+        addEntity("sube", 8838);
+        addEntity("supe", 8839);
+        addEntity("oplus", 8853);
+        addEntity("otimes", 8855);
+        addEntity("perp", 8869);
+        addEntity("sdot", 8901);
+        addEntity("lceil", 8968);
+        addEntity("rceil", 8969);
+        addEntity("lfloor", 8970);
+        addEntity("rfloor", 8971);
+        addEntity("lang", 9001);
+        addEntity("rang", 9002);
+        addEntity("loz", 9674);
+        addEntity("spades", 9824);
+        addEntity("clubs", 9827);
+        addEntity("hearts", 9829);
+        addEntity("diams", 9830);
+    }
+
+
+    private String key;
+    private int intCode;
+
+    private SpecialEntity(String key, int intCode) {
+        this.key = key;
+        this.intCode = intCode;
+    }
+
+    public String getKey() {
+        return key;
+    }
+
+    public int getIntCode() {
+        return intCode;
+    }
+
+    public char getCharacter() {
+        return (char)intCode;
+    }
+
+    /**
+     * @return Numeric Character Reference in decimal format
+     */
+    public String getDecimalNCR() {
+        return "&#" + intCode + ";";
+    }
+
+    /**
+     * @return Numeric Character Reference in hex format
+     */
+    public String getHexNCR() {
+        return "&#x" + Integer.toHexString(intCode) + ";";
+    }
+
+    /**
+     * @return Escaped value of the entity
+     */
+    public String getEscapedValue() {
+        return "&" + key + ";";
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/TagInfo.java.svn-base b/src/org/htmlcleaner/.svn/text-base/TagInfo.java.svn-base
new file mode 100644
index 0000000..03af0a9
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/TagInfo.java.svn-base
@@ -0,0 +1,389 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.util.*;
+
+/**
+ * <p>
+ * Class contains information about single HTML tag.<br/>
+ * It also contains rules for tag balancing. For each tag, list of dependant
+ * tags may be defined. There are several kinds of dependancies used to reorder
+ * tags:
+ * <ul>
+ *      <li>
+ * 		  fatal tags - required outer tag - the tag will be ignored during
+ *        parsing (will be skipped) if this fatal tag is missing. For example, most web
+ *        browsers ignore elements TD, TR, TBODY if they are not in the context of TABLE tag.
+ *      </li>
+ *      <li>
+ *        required enclosing tags - if there is no such, it is implicitely
+ *        created. For example if TD is out of TR - open TR is created before.
+ *      </li>
+ *      <li>
+ *        forbidden tags - it is not allowed to occure inside - for example
+ *        FORM cannot be inside other FORM and it will be ignored during cleanup.
+ *      </li>
+ *      <li>
+ *        allowed children tags - for example TR allowes TD and TH. If there
+ *        are some dependant allowed tags defined then cleaner ignores other tags, treating
+ *        them as unallowed, unless they are in some other relationship with this tag.
+ *      </li>
+ *      <li>
+ *        higher level tags - for example for TR higher tags are THEAD, TBODY, TFOOT.
+ *      </li>
+ *      <li>
+ *        tags that must be closed and copied - for example, in
+ *        <code>&lt;a href="#"&gt;&lt;div&gt;....</code> tag A must be closed before DIV but
+ *        copied again inside DIV.
+ *      </li>
+ *      <li>
+ *        tags that must be closed before closing this tag and copied again after -
+ *        for example, in <code>&lt;i&gt;&lt;b&gt;at&lt;/i&gt; first&lt;/b&gt; text </code>
+ *        tag B must be closed before closing I, but it must be copied again after resulting
+ *        finally in sequence: <code>&lt;i&gt;&lt;b&gt;at&lt;/b&gt;&lt;/i&gt;&lt;b&gt; first&lt;/b&gt; text </code>.
+ *      </li>
+ * </ul>
+ * </p>
+ * 
+ * <p>
+ * Tag TR for instance (table row) may define the following dependancies:
+ *      <ul>
+ *          <li>fatal tag is <code>table</code></li>
+ *          <li>required enclosing tag is <code>tbody</code></li>
+ *          <li>allowed children tags are <code>td,th</code></li>
+ *          <li>higher level tags are <code>thead,tfoot</code></li>
+ *          <li>tags that muste be closed before are <code>tr,td,th,caption,colgroup</code></li>
+ *      </ul>
+ * meaning the following: <br>
+ *   <ul>
+ *      <li><code>tr</code> must be in context of <code>table</code>, otherwise it will be ignored,</li>
+ *      <li><code>tr</code> may can be directly inside <code>tbody</code>, <code>tfoot</code> and <code>thead</code>,
+ *          otherwise <code>tbody</code> will be implicitely created in front of it.</li>
+ *      <li><code>tr</code> can contain <code>td</code> and <code>th</code>, all other tags and content will be pushed out of current
+ *      limiting context, in the case of html tables, in front of enclosing <code>table</code> tag.</li>
+ *      <li>if previous open tag is one of <code>tr</code>, <code>caption</code> or <code>colgroup</code>, it will be implicitely closed.</li>
+ *   </ul>
+ * </p>
+ */
+public class TagInfo {
+
+    protected static final int HEAD_AND_BODY = 0;
+	protected static final int HEAD = 1;
+	protected static final int BODY = 2;
+	
+	protected static final int CONTENT_ALL = 0;
+	protected static final int CONTENT_NONE = 1;
+	protected static final int CONTENT_TEXT = 2;
+
+    private String name;
+    private int contentType;
+    private Set mustCloseTags = new HashSet();
+    private Set higherTags = new HashSet();
+    private Set childTags = new HashSet();
+    private Set permittedTags = new HashSet();
+    private Set copyTags = new HashSet();
+    private Set continueAfterTags = new HashSet();
+    private int belongsTo = BODY;
+    private String requiredParent = null;
+    private String fatalTag = null; 
+    private boolean deprecated = false; 
+    private boolean unique = false; 
+    private boolean ignorePermitted = false;
+
+
+    public TagInfo(String name, int contentType, int belongsTo, boolean depricated, boolean unique, boolean ignorePermitted) {
+        this.name = name;
+        this.contentType = contentType;
+        this.belongsTo = belongsTo;
+        this.deprecated = depricated;
+        this.unique = unique;
+        this.ignorePermitted = ignorePermitted;
+    }
+
+    public void defineFatalTags(String commaSeparatedListOfTags) {
+        StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            String currTag = tokenizer.nextToken();
+            this.fatalTag = currTag;
+            this.higherTags.add(currTag);
+        }
+    }
+
+    public void defineRequiredEnclosingTags(String commaSeparatedListOfTags) {
+        StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            String currTag = tokenizer.nextToken();
+            this.requiredParent = currTag;
+            this.higherTags.add(currTag);
+        }
+    }
+
+    public void defineForbiddenTags(String commaSeparatedListOfTags) {
+        StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            String currTag = tokenizer.nextToken();
+            this.permittedTags.add(currTag);
+        }
+    }
+
+    public void defineAllowedChildrenTags(String commaSeparatedListOfTags) {
+        StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            String currTag = tokenizer.nextToken();
+            this.childTags.add(currTag);
+        }
+    }
+
+    public void defineHigherLevelTags(String commaSeparatedListOfTags) {
+        StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            String currTag = tokenizer.nextToken();
+            this.higherTags.add(currTag);
+        }
+    }
+
+    public void defineCloseBeforeCopyInsideTags(String commaSeparatedListOfTags) {
+        StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            String currTag = tokenizer.nextToken();
+            this.copyTags.add(currTag);
+            this.mustCloseTags.add(currTag);
+        }
+    }
+
+    public void defineCloseInsideCopyAfterTags(String commaSeparatedListOfTags) {
+        StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            String currTag = tokenizer.nextToken();
+            this.continueAfterTags.add(currTag);
+        }
+    }
+
+    public void defineCloseBeforeTags(String commaSeparatedListOfTags) {
+        StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            String currTag = tokenizer.nextToken();
+            this.mustCloseTags.add(currTag);
+        }
+    }
+
+    // getters and setters
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getContentType() {
+        return contentType;
+    }
+
+    public Set getMustCloseTags() {
+        return mustCloseTags;
+    }
+
+    public void setMustCloseTags(Set mustCloseTags) {
+        this.mustCloseTags = mustCloseTags;
+    }
+
+    public Set getHigherTags() {
+        return higherTags;
+    }
+
+    public void setHigherTags(Set higherTags) {
+        this.higherTags = higherTags;
+    }
+
+    public Set getChildTags() {
+        return childTags;
+    }
+
+    public void setChildTags(Set childTags) {
+        this.childTags = childTags;
+    }
+
+    public Set getPermittedTags() {
+        return permittedTags;
+    }
+
+    public void setPermittedTags(Set permittedTags) {
+        this.permittedTags = permittedTags;
+    }
+
+    public Set getCopyTags() {
+        return copyTags;
+    }
+
+    public void setCopyTags(Set copyTags) {
+        this.copyTags = copyTags;
+    }
+
+    public Set getContinueAfterTags() {
+        return continueAfterTags;
+    }
+
+    public void setContinueAfterTags(Set continueAfterTags) {
+        this.continueAfterTags = continueAfterTags;
+    }
+
+    public String getRequiredParent() {
+        return requiredParent;
+    }
+
+    public void setRequiredParent(String requiredParent) {
+        this.requiredParent = requiredParent;
+    }
+
+    public int getBelongsTo() {
+        return belongsTo;
+    }
+
+    public void setBelongsTo(int belongsTo) {
+        this.belongsTo = belongsTo;
+    }
+
+    public String getFatalTag() {
+        return fatalTag;
+    }
+
+    public void setFatalTag(String fatalTag) {
+        this.fatalTag = fatalTag;
+    }
+
+    public boolean isDeprecated() {
+        return deprecated;
+    }
+
+    public void setDeprecated(boolean deprecated) {
+        this.deprecated = deprecated;
+    }
+
+    public boolean isUnique() {
+        return unique;
+    }
+
+    public void setUnique(boolean unique) {
+        this.unique = unique;
+    }
+
+    public boolean isIgnorePermitted() {
+        return ignorePermitted;
+    }
+
+    public boolean isEmptyTag() {
+        return CONTENT_NONE == contentType;
+    }
+
+    public void setIgnorePermitted(boolean ignorePermitted) {
+        this.ignorePermitted = ignorePermitted;
+    }
+
+    // other functionality
+
+    boolean allowsBody() {
+    	return CONTENT_NONE != contentType; 
+    }
+    
+    boolean isHigher(String tagName) {
+    	return higherTags.contains(tagName);
+    }
+    
+    boolean isCopy(String tagName) {
+    	return copyTags.contains(tagName);
+    }
+
+    boolean hasCopyTags() {
+    	return !copyTags.isEmpty(); 
+    }
+
+    boolean isContinueAfter(String tagName) {
+    	return continueAfterTags.contains(tagName);
+    }
+    
+    boolean hasPermittedTags() {
+    	return !permittedTags.isEmpty(); 
+    }
+
+    boolean isHeadTag() {
+    	return belongsTo == HEAD;
+    }
+    
+    boolean isHeadAndBodyTag() {
+    	return belongsTo == HEAD || belongsTo == HEAD_AND_BODY;
+    }
+
+    boolean isMustCloseTag(TagInfo tagInfo) {
+        if (tagInfo != null) {
+            return mustCloseTags.contains( tagInfo.getName() ) || tagInfo.contentType == CONTENT_TEXT;
+        }
+
+        return false;
+    }
+
+    boolean allowsItem(BaseToken token) {
+        if ( contentType != CONTENT_NONE && token instanceof TagToken ) {
+            TagToken tagToken = (TagToken) token;
+            String tagName = tagToken.getName();
+            if ( "script".equals(tagName) ) {
+                return true;
+            }
+        }
+
+        if (CONTENT_ALL == contentType) {
+            if ( !childTags.isEmpty() ) {
+            	return token instanceof TagToken ? childTags.contains( ((TagToken)token).getName() ) : false;
+    		} else if ( !permittedTags.isEmpty() ) {
+    			return token instanceof TagToken ? !permittedTags.contains( ((TagToken)token).getName() ) : true;
+    		}
+            return true;
+        } else if ( CONTENT_TEXT == contentType ) {
+    		return !(token instanceof TagToken);
+    	}
+    	
+    	return false;
+    }
+    
+    boolean allowsAnything() {
+    	return CONTENT_ALL == contentType && childTags.size() == 0;
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/TagNode.java.svn-base b/src/org/htmlcleaner/.svn/text-base/TagNode.java.svn-base
new file mode 100644
index 0000000..24b79ff
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/TagNode.java.svn-base
@@ -0,0 +1,714 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * <p>
+ *      XML node tag - basic node of the cleaned HTML tree. At the same time, it represents start tag token
+ *      after HTML parsing phase and before cleaning phase. After cleaning process, tree structure remains
+ *      containing tag nodes (TagNode class), content (text nodes - ContentNode), comments (CommentNode)
+ *      and optionally doctype node (DoctypeToken).
+ * </p>
+ */
+public class TagNode extends TagToken implements HtmlNode {
+
+    /**
+     * Used as base for different node checkers.
+     */
+    public interface ITagNodeCondition {
+        public boolean satisfy(TagNode tagNode);
+    }
+
+    /**
+     * All nodes.
+     */
+    public class TagAllCondition implements ITagNodeCondition {
+        public boolean satisfy(TagNode tagNode) {
+            return true;
+        }
+    }
+
+    /**
+     * Checks if node has specified name.
+     */
+    public class TagNodeNameCondition implements ITagNodeCondition {
+        private String name;
+
+        public TagNodeNameCondition(String name) {
+            this.name = name;
+        }
+
+        public boolean satisfy(TagNode tagNode) {
+            return tagNode == null ? false : tagNode.name.equalsIgnoreCase(this.name);
+        }
+    }
+
+    /**
+     * Checks if node contains specified attribute.
+     */
+    public class TagNodeAttExistsCondition implements ITagNodeCondition {
+        private String attName;
+
+        public TagNodeAttExistsCondition(String attName) {
+            this.attName = attName;
+        }
+
+        public boolean satisfy(TagNode tagNode) {
+            return tagNode == null ? false : tagNode.attributes.containsKey( attName.toLowerCase() );
+        }
+    }
+
+    /**
+     * Checks if node has specified attribute with specified value.
+     */
+    public class TagNodeAttValueCondition implements ITagNodeCondition {
+        private String attName;
+        private String attValue;
+        private boolean isCaseSensitive;
+
+        public TagNodeAttValueCondition(String attName, String attValue, boolean isCaseSensitive) {
+            this.attName = attName;
+            this.attValue = attValue;
+            this.isCaseSensitive = isCaseSensitive;
+        }
+
+        public boolean satisfy(TagNode tagNode) {
+            if (tagNode == null || attName == null || attValue == null) {
+                return false;
+            } else {
+                return isCaseSensitive ?
+                        attValue.equals( tagNode.getAttributeByName(attName) ) :
+                        attValue.equalsIgnoreCase( tagNode.getAttributeByName(attName) );
+            }
+        }
+    }
+
+    private TagNode parent = null; 
+    private Map<String, String> attributes = new LinkedHashMap<String, String>();
+    private List children = new ArrayList();
+    private DoctypeToken docType = null;
+    private Map<String, String> nsDeclarations = null;
+    private List<BaseToken> itemsToMove = null;
+
+    private transient boolean isFormed = false;
+
+
+    public TagNode(String name) {
+        super(name == null ? null : name.toLowerCase());
+    }
+
+    /**
+     * Changes name of the tag
+     * @param name
+     * @return True if new name is valid, false otherwise
+     */
+    public boolean setName(String name) {
+        if (Utils.isValidXmlIdentifier(name)) {
+            this.name = name;
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @param attName
+     * @return Value of the specified attribute, or null if it this tag doesn't contain it. 
+     */
+    public String getAttributeByName(String attName) {
+		return attName != null ? attributes.get(attName.toLowerCase()) : null;
+	}
+
+    /**
+     * @return Map instance containing all attribute name/value pairs.
+     */
+    public Map<String, String> getAttributes() {
+		return attributes;
+	}
+
+    /**
+     * Checks existance of specified attribute.
+     * @param attName
+     */
+    public boolean hasAttribute(String attName) {
+        return attName != null ? attributes.containsKey(attName.toLowerCase()) : false;
+    }
+
+    /**
+     * @deprecated Use setAttribute instead
+     * Adds specified attribute to this tag or overrides existing one.
+     * @param attName
+     * @param attValue
+     */
+    @Deprecated
+    public void addAttribute(String attName, String attValue) {
+        setAttribute(attName, attValue);
+    }
+
+    /**
+     * Adding new attribute ir overriding existing one.
+     * @param attName
+     * @param attValue
+     */
+    public void setAttribute(String attName, String attValue) {
+        if ( attName != null && !"".equals(attName.trim()) ) {
+            attName = attName.toLowerCase();
+            if ("xmlns".equals(attName)) {
+                addNamespaceDeclaration("", attValue);    
+            } else if (attName.startsWith("xmlns:")) {
+                addNamespaceDeclaration( attName.substring(6), attValue );
+            } else {
+                attributes.put(attName, attValue == null ? "" : attValue );
+            }
+        }
+    }
+
+    /**
+     * Adds namespace declaration to the node
+     * @param nsPrefix Namespace prefix
+     * @param nsURI Namespace URI
+     */
+    public void addNamespaceDeclaration(String nsPrefix, String nsURI) {
+        if (nsDeclarations == null) {
+            nsDeclarations = new TreeMap<String, String>();
+        }
+        nsDeclarations.put(nsPrefix, nsURI);
+    }
+
+    /**
+     * @return Map of namespace declarations for this node
+     */
+    public Map<String, String> getNamespaceDeclarations() {
+        return nsDeclarations;
+    }
+
+    /**
+     * Removes specified attribute from this tag.
+     * @param attName
+     */
+    public void removeAttribute(String attName) {
+        if ( attName != null && !"".equals(attName.trim()) ) {
+            attributes.remove( attName.toLowerCase() );
+        }
+    }
+
+    /**
+     * @return List of children objects. During the cleanup process there could be different kind of
+     * childern inside, however after clean there should be only TagNode instances.
+     */
+    public List getChildren() {
+		return children;
+	}
+
+    /**
+     * @return Whether this node has child elements or not.
+     */
+    public boolean hasChildren() {
+        return children.size() > 0;
+    }
+
+    void setChildren(List children) {
+        this.children = children;
+    }
+
+    public List getChildTagList() {
+        List childTagList = new ArrayList();
+        for (int i = 0; i < children.size(); i++) {
+            Object item = children.get(i);
+            if (item instanceof TagNode) {
+                childTagList.add(item);
+            }
+        }
+
+        return childTagList;
+    }
+
+    /**
+     * @return An array of child TagNode instances.
+     */
+    public TagNode[] getChildTags() {
+        List childTagList = getChildTagList();
+        TagNode childrenArray[] = new TagNode[childTagList.size()];
+        for (int i = 0; i < childTagList.size(); i++) {
+            childrenArray[i] = (TagNode) childTagList.get(i);
+        }
+
+        return childrenArray;
+    }
+
+    /**
+     * @return Text content of this node and it's subelements.
+     */
+    public StringBuffer getText() {
+        StringBuffer text = new StringBuffer();
+        for (int i = 0; i < children.size(); i++) {
+            Object item = children.get(i);
+            if (item instanceof ContentNode) {
+                text.append(item.toString());
+            } else if (item instanceof TagNode) {
+                StringBuffer subtext = ((TagNode)item).getText();
+                text.append(subtext);
+            }
+        }
+
+        return text;
+    }
+
+    /**
+     * @return Parent of this node, or null if this is the root node.
+     */
+    public TagNode getParent() {
+		return parent;
+	}
+
+    public DoctypeToken getDocType() {
+        return docType;
+    }
+
+    public void setDocType(DoctypeToken docType) {
+        this.docType = docType;
+    }
+
+    public void addChild(Object child) {
+        if (child == null) {
+            return;
+        }
+        if (child instanceof List) {
+            addChildren( (List)child );
+        } else {
+            children.add(child);
+            if (child instanceof TagNode) {
+                TagNode childTagNode = (TagNode)child;
+                childTagNode.parent = this;
+            }
+        }
+    }
+
+    /**
+     * Add all elements from specified list to this node.
+     * @param newChildren
+     */
+    public void addChildren(List newChildren) {
+    	if (newChildren != null) {
+    		Iterator it = newChildren.iterator();
+    		while (it.hasNext()) {
+    			Object child = it.next();
+    			addChild(child);
+    		}
+    	}
+    }
+
+    /**
+     * Finds first element in the tree that satisfy specified condition.
+     * @param condition
+     * @param isRecursive
+     * @return First TagNode found, or null if no such elements.
+     */
+    private TagNode findElement(ITagNodeCondition condition, boolean isRecursive) {
+        if (condition == null) {
+            return null;
+        }
+
+        for (int i = 0; i < children.size(); i++) {
+            Object item = children.get(i);
+            if (item instanceof TagNode) {
+                TagNode currNode = (TagNode) item;
+                if ( condition.satisfy(currNode) ) {
+                    return currNode;
+                } else if (isRecursive) {
+                    TagNode inner = currNode.findElement(condition, isRecursive);
+                    if (inner != null) {
+                        return inner;
+                    }
+                }
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * Get all elements in the tree that satisfy specified condition.
+     * @param condition
+     * @param isRecursive
+     * @return List of TagNode instances with specified name.
+     */
+    private List getElementList(ITagNodeCondition condition, boolean isRecursive) {
+        List result = new LinkedList();
+        if (condition == null) {
+            return result;
+        }
+
+        for (int i = 0; i < children.size(); i++) {
+            Object item = children.get(i);
+            if (item instanceof TagNode) {
+                TagNode currNode = (TagNode) item;
+                if ( condition.satisfy(currNode) ) {
+                    result.add(currNode);
+                }
+                if (isRecursive) {
+                    List innerList = currNode.getElementList(condition, isRecursive);
+                    if (innerList != null && innerList.size() > 0) {
+                        result.addAll(innerList);
+                    }
+                }
+            }
+        }
+
+        return result;
+    }
+
+    /**
+     * @param condition
+     * @param isRecursive
+     * @return The array of all subelemets that satisfy specified condition.
+     */
+    private TagNode[] getElements(ITagNodeCondition condition, boolean isRecursive) {
+        final List list = getElementList(condition, isRecursive);
+        TagNode array[] = new TagNode[ list == null ? 0 : list.size() ];
+        for (int i = 0; i < list.size(); i++) {
+            array[i] = (TagNode) list.get(i);
+        }
+
+        return array;
+    }
+
+
+    public List getAllElementsList(boolean isRecursive) {
+        return getElementList( new TagAllCondition(), isRecursive );
+    }
+
+    public TagNode[] getAllElements(boolean isRecursive) {
+        return getElements( new TagAllCondition(), isRecursive );
+    }
+
+    public TagNode findElementByName(String findName, boolean isRecursive) {
+        return findElement( new TagNodeNameCondition(findName), isRecursive );
+    }
+
+    public List getElementListByName(String findName, boolean isRecursive) {
+        return getElementList( new TagNodeNameCondition(findName), isRecursive );
+    }
+
+    public TagNode[] getElementsByName(String findName, boolean isRecursive) {
+        return getElements( new TagNodeNameCondition(findName), isRecursive );
+    }
+
+    public TagNode findElementHavingAttribute(String attName, boolean isRecursive) {
+        return findElement( new TagNodeAttExistsCondition(attName), isRecursive );
+    }
+
+    public List getElementListHavingAttribute(String attName, boolean isRecursive) {
+        return getElementList( new TagNodeAttExistsCondition(attName), isRecursive );
+    }
+
+    public TagNode[] getElementsHavingAttribute(String attName, boolean isRecursive) {
+        return getElements( new TagNodeAttExistsCondition(attName), isRecursive );
+    }
+
+    public TagNode findElementByAttValue(String attName, String attValue, boolean isRecursive, boolean isCaseSensitive) {
+        return findElement( new TagNodeAttValueCondition(attName, attValue, isCaseSensitive), isRecursive );
+    }
+
+    public List getElementListByAttValue(String attName, String attValue, boolean isRecursive, boolean isCaseSensitive) {
+        return getElementList( new TagNodeAttValueCondition(attName, attValue, isCaseSensitive), isRecursive );
+    }
+
+    public TagNode[] getElementsByAttValue(String attName, String attValue, boolean isRecursive, boolean isCaseSensitive) {
+        return getElements( new TagNodeAttValueCondition(attName, attValue, isCaseSensitive), isRecursive );
+    }
+
+    /**
+     * Evaluates XPath expression on give node. <br>
+     * <em>
+     *  This is not fully supported XPath parser and evaluator.
+     *  Examples below show supported elements:
+     * </em>
+     * <code>
+     * <ul>
+     *      <li>//div//a</li>
+     *      <li>//div//a[@id][@class]</li>
+     *      <li>/body/*[1]/@type</li>
+     *      <li>//div[3]//a[@id][@href='r/n4']</li>
+     *      <li>//div[last() >= 4]//./div[position() = last()])[position() > 22]//li[2]//a</li>
+     *      <li>//div[2]/@*[2]</li>
+     *      <li>data(//div//a[@id][@class])</li>
+     *      <li>//p/last()</li>
+     *      <li>//body//div[3][@class]//span[12.2<position()]/@id</li>
+     *      <li>data(//a['v' < @id])</li>
+     * </ul>
+     * </code>
+     * @param xPathExpression
+     * @return
+     * @throws XPatherException
+     */
+    public Object[] evaluateXPath(String xPathExpression) throws XPatherException {
+        return new XPather(xPathExpression).evaluateAgainstNode(this);
+    }
+
+    /**
+     * Remove this node from the tree.
+     * @return True if element is removed (if it is not root node).
+     */
+    public boolean removeFromTree() {
+        if (parent != null) {
+            boolean existed = parent.removeChild(this);
+            parent = null;
+            return existed;
+        }
+        return false;
+    }
+
+    /**
+     * Remove specified child element from this node.
+     * @param child
+     * @return True if child object existed in the children list.
+     */
+    public boolean removeChild(Object child) {
+        return this.children.remove(child);
+    }
+
+    /**
+     * Removes all children (subelements and text content).
+     */
+    public void removeAllChildren() {
+        this.children.clear();
+    }
+
+    /**
+     * Replaces specified child node with specified replacement node.
+     * @param childToReplace Child node to be replaced
+     * @param replacement Replacement node
+     */
+    public void replaceChild(HtmlNode childToReplace, HtmlNode replacement) {
+        if (replacement == null) {
+            return;
+        }
+        ListIterator it = children.listIterator();
+        while (it.hasNext()) {
+            Object curr = it.next();
+            if (curr == childToReplace) {
+                it.set(replacement);
+                break;
+            }
+        }
+    }
+
+    /**
+     * @param child Child to find index of
+     * @return Index of the specified child node inside this node's children, -1 if node is not the child 
+     */
+    public int getChildIndex(HtmlNode child) {
+        int index = 0;
+        for (Object curr: children) {
+            if (curr == child) {
+                return index;
+            }
+            index++;
+        }
+        return -1;
+    }
+
+    /**
+     * Inserts specified node at specified position in array of children  
+     * @param index
+     * @param childToAdd
+     */
+    public void insertChild(int index, HtmlNode childToAdd) {
+        children.add(index, childToAdd);
+    }
+
+    /**
+     * Inserts specified node in the list of children before specified child
+     * @param node Child before which to insert new node
+     * @param nodeToInsert Node to be inserted at specified position
+     */
+    public void insertChildBefore(HtmlNode node, HtmlNode nodeToInsert) {
+        int index = getChildIndex(node);
+        if (index >= 0) {
+            insertChild(index, nodeToInsert);
+        }
+    }
+
+    /**
+     * Inserts specified node in the list of children after specified child
+     * @param node Child after which to insert new node
+     * @param nodeToInsert Node to be inserted at specified position
+     */
+    public void insertChildAfter(HtmlNode node, HtmlNode nodeToInsert) {
+        int index = getChildIndex(node);
+        if (index >= 0) {
+            insertChild(index + 1, nodeToInsert);
+        }
+    }
+
+    void addItemForMoving(BaseToken item) {
+    	if (itemsToMove == null) {
+    		itemsToMove = new ArrayList<BaseToken>();
+    	}
+    	
+    	itemsToMove.add(item);
+    }
+    
+    List<BaseToken> getItemsToMove() {
+		return itemsToMove;
+	}
+
+    void setItemsToMove(List<BaseToken> itemsToMove) {
+        this.itemsToMove = itemsToMove;
+    }
+
+	boolean isFormed() {
+		return isFormed;
+	}
+
+	void setFormed(boolean isFormed) {
+		this.isFormed = isFormed;
+	}
+
+	void setFormed() {
+		setFormed(true);
+	}
+
+    void transformAttributes(TagTransformation tagTrans) {
+        boolean isPreserveSourceAtts = tagTrans.isPreserveSourceAttributes();
+        boolean hasAttTransforms = tagTrans.hasAttributeTransformations();
+        if ( hasAttTransforms || !isPreserveSourceAtts) {
+            Map<String, String> newAttributes = isPreserveSourceAtts ? new LinkedHashMap<String, String>(attributes) : new LinkedHashMap<String, String>();
+            if (hasAttTransforms) {
+                Map map = tagTrans.getAttributeTransformations();
+                Iterator iterator = map.entrySet().iterator();
+                while (iterator.hasNext()) {
+                    Map.Entry entry = (Map.Entry) iterator.next();
+                    String attName = (String) entry.getKey();
+                    String template = (String) entry.getValue();
+                    if (template == null) {
+                        newAttributes.remove(attName);
+                    } else {
+                        String attValue = Utils.evaluateTemplate(template, attributes);
+                        newAttributes.put(attName, attValue);
+                    }
+                }
+            }
+            this.attributes = newAttributes;
+        }
+    }
+
+    /**
+     * Traverses the tree and performs visitor's action on each node. It stops when it
+     * finishes all the tree or when visitor returns false.
+     * @param visitor TagNodeVisitor implementation
+     */
+    public void traverse(TagNodeVisitor visitor) {
+        traverseInternally(visitor);
+    }
+
+
+    private boolean traverseInternally(TagNodeVisitor visitor) {
+        if (visitor != null) {
+            boolean hasParent = parent != null;
+            boolean toContinue = visitor.visit(parent, this);
+
+            if (!toContinue) {
+                return false; // if visitor stops traversal
+            } else if (hasParent && parent == null) {
+                return true; // if this node is pruned from the tree during the visit, then don't go deeper
+            }
+            for (Object child: children.toArray()) {  // make an array to avoid ConcurrentModificationException when some node is cut 
+                if (child instanceof TagNode) {
+                    toContinue = ((TagNode)child).traverseInternally(visitor);
+                } else if (child instanceof ContentNode) {
+                    toContinue = visitor.visit(this, (ContentNode)child);
+                } else if (child instanceof CommentNode) {
+                    toContinue = visitor.visit(this, (CommentNode)child);
+                }
+                if (!toContinue) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+
+    /**
+     * Collect all prefixes in namespace declarations up the path to the document root from the specified node
+     * @param prefixes Set of prefixes to be collected
+     */
+    void collectNamespacePrefixesOnPath(Set<String> prefixes) {
+        Map<String, String> nsDeclarations = getNamespaceDeclarations();
+        if (nsDeclarations != null) {
+            for (String prefix: nsDeclarations.keySet()) {
+                prefixes.add(prefix);
+            }
+        }
+        if (parent != null) {
+            parent.collectNamespacePrefixesOnPath(prefixes);
+        }
+    }
+
+    String getNamespaceURIOnPath(String nsPrefix) {
+        if (nsDeclarations != null) {
+            for (Map.Entry<String, String> nsEntry: nsDeclarations.entrySet()) {
+                String currName = nsEntry.getKey();
+                if ( currName.equals(nsPrefix) || ("".equals(currName) && nsPrefix == null) ) {
+                    return nsEntry.getValue();
+                }
+            }
+        }
+        if (parent != null) {
+            return parent.getNamespaceURIOnPath(nsPrefix);
+        }
+
+        return null;
+    }
+
+    public void serialize(Serializer serializer, Writer writer) throws IOException {
+    	serializer.serialize(this, writer);
+    }
+    
+    TagNode makeCopy() {
+    	TagNode copy = new TagNode(name);
+        copy.attributes.putAll(attributes);
+    	return copy;
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/TagNodeVisitor.java.svn-base b/src/org/htmlcleaner/.svn/text-base/TagNodeVisitor.java.svn-base
new file mode 100644
index 0000000..1326514
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/TagNodeVisitor.java.svn-base
@@ -0,0 +1,16 @@
+package org.htmlcleaner;
+
+/**
+ * Defines action to be performed on TagNodes
+ */
+public interface TagNodeVisitor {
+
+    /**
+     * Action to be performed on single node in the tree
+     * @param parentNode Parent of tagNode
+     * @param htmlNode node visited
+     * @return True if tree traversal should be continued, false if it has to stop.
+     */
+    public boolean visit(TagNode parentNode, HtmlNode htmlNode);
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/TagToken.java.svn-base b/src/org/htmlcleaner/.svn/text-base/TagToken.java.svn-base
new file mode 100644
index 0000000..d5c7832
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/TagToken.java.svn-base
@@ -0,0 +1,65 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+
+/**
+ * <p>HTML tag token - descendants are start (TagNode) and end token (EndTagToken).</p>
+ */
+public abstract class TagToken implements BaseToken {
+
+    protected String name;
+
+	public TagToken() {
+	}
+
+	public TagToken(String name) {
+		this.name = name;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public String toString() {
+		return name;
+	}
+
+    abstract void setAttribute(String attName, String attValue);
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/TagTransformation.java.svn-base b/src/org/htmlcleaner/.svn/text-base/TagTransformation.java.svn-base
new file mode 100644
index 0000000..3158481
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/TagTransformation.java.svn-base
@@ -0,0 +1,134 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.util.Map;
+import java.util.LinkedHashMap;
+
+/**
+ * Describes how specified tag is transformed to another one, or is ignored during parsing
+ */
+public class TagTransformation {
+
+    private String sourceTag;
+    private String destTag;
+    private boolean preserveSourceAttributes;
+    private Map attributeTransformations;
+
+    /**
+     * Creates new tag transformation from source tag to target tag specifying whether
+     * source tag attributes are preserved.
+     * @param sourceTag Name of the tag to be transformed.
+     * @param destTag Name of tag to which source tag is to be transformed.
+     * @param preserveSourceAttributes Tells whether source tag attributes are preserved in transformation.
+     */
+    public TagTransformation(String sourceTag, String destTag, boolean preserveSourceAttributes) {
+        this.sourceTag = sourceTag.toLowerCase();
+        if (destTag == null) {
+            this.destTag = null;
+        } else {
+            this.destTag = Utils.isValidXmlIdentifier(destTag) ? destTag.toLowerCase() : sourceTag;
+        }
+        this.preserveSourceAttributes = preserveSourceAttributes;
+    }
+
+    /**
+     * Creates new tag transformation from source tag to target tag preserving
+     * all source tag attributes.
+     * @param sourceTag Name of the tag to be transformed.
+     * @param destTag Name of tag to which source tag is to be transformed.
+     */
+    public TagTransformation(String sourceTag, String destTag) {
+        this(sourceTag, destTag, true);
+    }
+
+    /**
+     * Creates new tag transformation in which specified tag will be skipped (ignored)
+     * during parsing process.
+     * @param sourceTag
+     */
+    public TagTransformation(String sourceTag) {
+        this(sourceTag, null);
+    }
+
+    /**
+     * Adds new attribute transformation to this tag transformation. It tells how destination
+     * attribute will look like. Small templating mechanism is used to describe attribute value:
+     * all names between ${ and } inside the template are evaluated against source tag attributes.
+     * That way one can make attribute values consist of mix of source tag attributes.
+     *
+     * @param targetAttName Name of the destination attribute 
+     * @param transformationDesc Template describing attribute value.
+     */
+    public void addAttributeTransformation(String targetAttName, String transformationDesc) {
+        if (attributeTransformations == null) {
+            attributeTransformations = new LinkedHashMap();
+        }
+        attributeTransformations.put(targetAttName.toLowerCase(), transformationDesc);
+    }
+
+    /**
+     * Adds new attribute transformation in which destination attrbute will not exists
+     * (simply removes it from list of attributes).
+     * @param targetAttName
+     */
+    public void addAttributeTransformation(String targetAttName) {
+        addAttributeTransformation(targetAttName, null);
+    }
+
+    boolean hasAttributeTransformations() {
+        return attributeTransformations != null;
+    }
+
+    String getSourceTag() {
+        return sourceTag;
+    }
+
+    String getDestTag() {
+        return destTag;
+    }
+
+    boolean isPreserveSourceAttributes() {
+        return preserveSourceAttributes;
+    }
+
+    Map getAttributeTransformations() {
+        return attributeTransformations;
+    }
+    
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/Utils.java.svn-base b/src/org/htmlcleaner/.svn/text-base/Utils.java.svn-base
new file mode 100644
index 0000000..4652a4b
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/Utils.java.svn-base
@@ -0,0 +1,480 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.net.URL;
+import java.nio.charset.Charset;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.StringTokenizer;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * <p>Common utilities.</p>
+ */
+public class Utils {
+
+    public static String VAR_START = "${";
+    public static String VAR_END = "}";
+
+    public static final Map<Character, String> RESERVED_XML_CHARS = new HashMap<Character, String>();
+
+    static {
+        RESERVED_XML_CHARS.put('&', "&amp;");
+        RESERVED_XML_CHARS.put('<', "&lt;");
+        RESERVED_XML_CHARS.put('>', "&gt;");
+        RESERVED_XML_CHARS.put('\"', "&quot;");
+        RESERVED_XML_CHARS.put('\'', "&apos;");
+    }
+    
+    /**
+     * Trims specified string from left.
+     * @param s
+     */
+    public static String ltrim(String s) {
+        if (s == null) {
+            return null;
+        }
+
+        int index = 0;
+        int len = s.length();
+
+        while ( index < len && Character.isWhitespace(s.charAt(index)) ) {
+            index++;
+        }
+
+        return (index >= len) ? "" : s.substring(index);
+    }
+
+    /**
+     * Trims specified string from right.
+     * @param s
+     */
+    public static String rtrim(String s) {
+        if (s == null) {
+            return null;
+        }
+
+        int len = s.length();
+        int index = len;
+
+        while ( index > 0 && Character.isWhitespace(s.charAt(index-1)) ) {
+            index--;
+        }
+
+        return (index <= 0) ? "" : s.substring(0, index);
+    }
+
+    public static String getCharsetFromContentTypeString(String contentType) {
+        if (contentType != null) {
+            String pattern = "charset=([a-z\\d\\-]*)";
+            Matcher matcher = Pattern.compile(pattern,  Pattern.CASE_INSENSITIVE).matcher(contentType);
+            if (matcher.find()) {
+                String charset = matcher.group(1);
+                if (Charset.isSupported(charset)) {
+                    return charset;
+                }
+            }
+        }
+        
+        return null;
+    }
+
+    public static String getCharsetFromContent(URL url) throws IOException {
+        InputStream stream = url.openStream();
+        byte chunk[] = new byte[2048];
+        int bytesRead = stream.read(chunk);
+        if (bytesRead > 0) {
+            String startContent = new String(chunk);
+            String pattern = "\\<meta\\s*http-equiv=[\\\"\\']content-type[\\\"\\']\\s*content\\s*=\\s*[\"']text/html\\s*;\\s*charset=([a-z\\d\\-]*)[\\\"\\'\\>]";
+            Matcher matcher = Pattern.compile(pattern,  Pattern.CASE_INSENSITIVE).matcher(startContent);
+            if (matcher.find()) {
+                String charset = matcher.group(1);
+                if (Charset.isSupported(charset)) {
+                    return charset;
+                }
+            }
+        }
+
+        return null;
+    }
+
+    public static boolean isHexadecimalDigit(char ch) {
+        return Character.isDigit(ch) ||
+               ch == 'A' || ch == 'a' || ch == 'B' || ch == 'b' || ch == 'C' || ch == 'c' ||
+               ch == 'D' || ch == 'd' || ch == 'E' || ch == 'e' || ch == 'F' || ch == 'f';
+    }
+
+    public static boolean isValidXmlChar(char ch) {
+        return ((ch >= 0x20) && (ch <= 0xD7FF)) ||
+               (ch == 0x9) ||
+               (ch == 0xA) ||
+               (ch == 0xD) ||
+               ((ch >= 0xE000) && (ch <= 0xFFFD)) ||
+               ((ch >= 0x10000) && (ch <= 0x10FFFF));
+    }
+
+    public static boolean isReservedXmlChar(char ch) {
+        return RESERVED_XML_CHARS.containsKey(ch);
+    }
+
+    public static boolean isValidInt(String s, int radix) {
+        try {
+            Integer.parseInt(s, radix);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+    
+    /**
+     * Escapes XML string.
+     * @param s String to be escaped
+     * @param props Cleaner properties gover affect escaping behaviour
+     * @param isDomCreation Tells if escaped content will be part of the DOM
+     */
+    public static String escapeXml(String s, CleanerProperties props, boolean isDomCreation) {
+        boolean advanced = props.isAdvancedXmlEscape();
+        boolean recognizeUnicodeChars = props.isRecognizeUnicodeChars();
+        boolean translateSpecialEntities = props.isTranslateSpecialEntities();
+
+        if (s != null) {
+    		int len = s.length();
+    		StringBuilder result = new StringBuilder(len);
+    		
+    		for (int i = 0; i < len; i++) {
+    			char ch = s.charAt(i);
+    			
+    			if (ch == '&') {
+    				if ( (advanced || recognizeUnicodeChars) && (i < len-2) && (s.charAt(i+1) == '#') ) {
+                        boolean isHex = Character.toLowerCase(s.charAt(i+2)) == 'x';
+                        int charIndex = i + (isHex ? 3 : 2);
+                        int radix = isHex ? 16 : 10;
+                        String unicode = "";
+                        while (charIndex < len) {
+                            char currCh = s.charAt(charIndex);
+                            if (currCh == ';') {
+                                break;
+                            } else if (isValidInt(unicode + currCh, radix)) {
+                                unicode += currCh;
+                                charIndex++;
+                            } else {
+                                charIndex--;
+                                break;
+                            }
+                        }
+
+    					if (isValidInt(unicode, radix)) {
+                            char unicodeChar = (char)Integer.parseInt(unicode, radix);
+                            if ( !isValidXmlChar(unicodeChar) ) {
+                                i = charIndex;
+                            } else if ( !isReservedXmlChar(unicodeChar) ) {
+                                result.append( recognizeUnicodeChars ? String.valueOf(unicodeChar) : "&#" + unicode + ";" );
+                                i = charIndex;
+                            } else {
+                                i = charIndex;
+                                result.append("&#" + unicode + ";");
+                            }
+    					} else {
+    						result.append("&amp;");
+    					}
+    				} else {
+    					if (translateSpecialEntities) {
+                            // get minimal following sequence required to recognize some special entitiy
+                            String seq = s.substring(i, i + Math.min(SpecialEntity.getMaxEntityLength() + 2, len - i));
+    						int semiIndex = seq.indexOf(';');
+    						if (semiIndex > 0) {
+    							String entityKey = seq.substring(1, semiIndex);
+    							SpecialEntity entity = SpecialEntity.getEntity(entityKey);
+    							if (entity != null) {
+                                    result.append(props.isTransSpecialEntitiesToNCR() ? entity.getDecimalNCR() : entity.getCharacter());
+    								i += entityKey.length() + 1;
+    								continue;
+    							}
+    						}
+    					}
+    					
+    					if (advanced) {
+                            String sub = s.substring(i);
+                            boolean isReservedSeq = false;
+                            for (Map.Entry<Character, String> entry: RESERVED_XML_CHARS.entrySet()) {
+                                String seq = entry.getValue();
+                                if ( sub.startsWith(seq) ) {
+                                    result.append( isDomCreation ? entry.getKey() : (props.transResCharsToNCR ? "&#" + (int)entry.getKey() + ";" : seq) );
+                                    i += seq.length() - 1;
+                                    isReservedSeq = true;
+                                    break;
+                                }
+                            }
+                            if (!isReservedSeq) {
+                                result.append( isDomCreation ? "&" : (props.transResCharsToNCR ? "&#" + (int)'&' + ";" :  RESERVED_XML_CHARS.get('&')) );
+                            }
+    						continue;
+    					}
+    					
+    					result.append("&amp;");
+    				}
+    			} else if (isReservedXmlChar(ch)) {
+    				result.append( props.transResCharsToNCR ? "&#" + (int)ch + ";" : (isDomCreation ? ch : RESERVED_XML_CHARS.get(ch)) );
+    			} else {
+    				result.append(ch);
+    			}
+    		}
+    		
+    		return result.toString();
+    	}
+    	
+    	return null;
+    }
+
+    /**
+     * Checks whether specified object's string representation is empty string (containing of only whitespaces).
+     * @param object Object whose string representation is checked
+     * @return true, if empty string, false otherwise
+     */
+    public static boolean isWhitespaceString(Object object) {
+        if (object != null) {
+            String s = object.toString();
+            return s != null && "".equals(s.trim());
+        }
+        return false;
+    }
+
+    /**
+     * Checks if specified character can be part of xml identifier (tag name of attribute name)
+     * and is not standard identifier character.
+     * @param ch Character to be checked
+     * @return True if it can be part of xml identifier
+     */
+    public static boolean isIdentifierHelperChar(char ch) {
+        return ':' == ch || '.' == ch || '-' == ch || '_' == ch;
+    }
+
+    /**
+     * Chacks whether specified string can be valid tag name or attribute name in xml.
+     * @param s String to be checked
+     * @return True if string is valid xml identifier, false otherwise
+     */
+    public static boolean isValidXmlIdentifier(String s) {
+        if (s != null) {
+            int len = s.length();
+            if (len == 0) {
+                return false;
+            }
+            for (int i = 0; i < len; i++) {
+                char ch = s.charAt(i);
+                if ( (i == 0 && !Character.isUnicodeIdentifierStart(ch) && ch != '_') ||
+                     (!Character.isUnicodeIdentifierStart(ch) && !Character.isDigit(ch) && !Utils.isIdentifierHelperChar(ch)) ) {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @param o
+     * @return True if specified string is null of contains only whitespace characters
+     */
+    public static boolean isEmptyString(Object o) {
+        return o == null || "".equals(o.toString().trim());
+    }
+
+    /**
+     * Evaluates string template for specified map of variables. Template string can contain
+     * dynamic parts in the form of ${VARNAME}. Each such part is replaced with value of the
+     * variable if such exists in the map, or with empty string otherwise.
+     * 
+     * @param template Template string
+     * @param variables Map of variables (can be null)
+     * @return Evaluated string
+     */
+    public static String evaluateTemplate(String template, Map variables) {
+        if (template == null) {
+            return template;
+        }
+
+        StringBuilder result = new StringBuilder();
+
+        int startIndex = template.indexOf(VAR_START);
+        int endIndex = -1;
+
+        while (startIndex >= 0 && startIndex < template.length()) {
+        	result.append( template.substring(endIndex + 1, startIndex) );
+        	endIndex = template.indexOf(VAR_END, startIndex);
+
+        	if (endIndex > startIndex) {
+        		String varName = template.substring(startIndex + VAR_START.length(), endIndex);
+                Object resultObj = variables != null ? variables.get(varName.toLowerCase()) : "";
+                result.append( resultObj == null ? "" : resultObj.toString() );
+        	}
+
+        	startIndex = template.indexOf( VAR_START, Math.max(endIndex + VAR_END.length(), startIndex + 1) );
+        }
+
+        result.append( template.substring(endIndex + 1) );
+
+        return result.toString();
+    }
+
+    public static String[] tokenize(String s, String delimiters) {
+        if (s == null) {
+            return new String[] {};
+        }
+
+        StringTokenizer tokenizer = new StringTokenizer(s, delimiters);
+        String result[] = new String[tokenizer.countTokens()];
+        int index = 0;
+        while (tokenizer.hasMoreTokens()) {
+            result[index++] = tokenizer.nextToken();
+        }
+
+        return result;
+    }    
+
+    public static void updateTagTransformations(CleanerTransformations transformations, String key, String value) {
+        int index = key.indexOf('.');
+
+        // new tag transformation case (tagname[=destname[,preserveatts]])
+        if (index <= 0) {
+            String destTag = null;
+            boolean preserveSourceAtts = true;
+            if (value != null) {
+                String[] tokens = tokenize(value, ",;");
+                if (tokens.length > 0) {
+                    destTag = tokens[0];
+                }
+                if (tokens.length > 1) {
+                    preserveSourceAtts = "true".equalsIgnoreCase(tokens[1]) ||
+                                         "yes".equalsIgnoreCase(tokens[1]) ||
+                                         "1".equals(tokens[1]);
+                }
+            }
+            TagTransformation newTagTrans = new TagTransformation(key, destTag, preserveSourceAtts);
+            transformations.addTransformation(newTagTrans);
+        } else {    // attribute transformation description
+            String[] parts = tokenize(key, ".");
+            String tagName = parts[0];
+            TagTransformation trans = transformations.getTransformation(tagName);
+            if (trans != null) {
+                trans.addAttributeTransformation(parts[1], value);
+            }
+        }
+    }
+
+    /**
+     * Checks if specified link is full URL.
+     *
+     * @param link
+     * @return True, if full URl, false otherwise.
+     */
+    public static boolean isFullUrl(String link) {
+        if (link == null) {
+            return false;
+        }
+        link = link.trim().toLowerCase();
+        return link.startsWith("http://") || link.startsWith("https://") || link.startsWith("file://");
+    }
+
+    /**
+     * Calculates full URL for specified page URL and link
+     * which could be full, absolute or relative like there can
+     * be found in A or IMG tags.
+     */
+    public static String fullUrl(String pageUrl, String link) {
+        if (isFullUrl(link)) {
+            return link;
+        } else if (link != null && link.startsWith("?")) {
+            int qindex = pageUrl.indexOf('?');
+            int len = pageUrl.length();
+            if (qindex < 0) {
+                return pageUrl + link;
+            } else if (qindex == len - 1) {
+                return pageUrl.substring(0, len - 1) + link;
+            } else {
+                return pageUrl + "&" + link.substring(1);
+            }
+        }
+
+        boolean isLinkAbsolute = link.startsWith("/");
+
+        if (!isFullUrl(pageUrl)) {
+            pageUrl = "http://" + pageUrl;
+        }
+
+        int slashIndex = isLinkAbsolute ? pageUrl.indexOf("/", 8) : pageUrl.lastIndexOf("/");
+        if (slashIndex <= 8) {
+            pageUrl += "/";
+        } else {
+            pageUrl = pageUrl.substring(0, slashIndex + 1);
+        }
+
+        return isLinkAbsolute ? pageUrl + link.substring(1) : pageUrl + link;
+    }
+
+    /**
+     * @param name
+     * @return For xml element name or attribute name returns prefix (part before :) or null if there is no prefix
+     */
+    public static String getXmlNSPrefix(String name) {
+        int colIndex = name.indexOf(':');
+        if (colIndex > 0) {
+            return name.substring(0, colIndex);
+        }
+
+        return null;
+    }
+
+    /**
+     * @param name
+     * @return For xml element name or attribute name returns name after prefix (part after :)
+     */
+    public static String getXmlName(String name) {
+        int colIndex = name.indexOf(':');
+        if (colIndex > 0 && colIndex < name.length() - 1) {
+            return name.substring(colIndex + 1);
+        }
+
+        return name;
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/XPather.java.svn-base b/src/org/htmlcleaner/.svn/text-base/XPather.java.svn-base
new file mode 100644
index 0000000..7ec44fb
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/XPather.java.svn-base
@@ -0,0 +1,586 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.util.*;
+
+/**
+ * <p>Utility for searching cleaned document tree with XPath expressions.</p>
+ * Examples of supported axes:
+ * <code>
+ * <ul>
+ *      <li>//div//a</li>  
+ *      <li>//div//a[@id][@class]</li>  
+ *      <li>/body/*[1]/@type</li>
+ *      <li>//div[3]//a[@id][@href='r/n4']</li>  
+ *      <li>//div[last() >= 4]//./div[position() = last()])[position() > 22]//li[2]//a</li>  
+ *      <li>//div[2]/@*[2]</li>  
+ *      <li>data(//div//a[@id][@class])</li>  
+ *      <li>//p/last()</li>  
+ *      <li>//body//div[3][@class]//span[12.2<position()]/@id</li>  
+ *      <li>data(//a['v' < @id])</li>  
+ * </ul>
+ * </code>
+ */
+public class XPather {
+
+    // array of basic tokens of which XPath expression is made
+    private String tokenArray[];
+
+    /**
+     * Constructor - creates XPather instance with specified XPath expression.
+     * @param expression
+     */
+    public XPather(String expression) {
+        StringTokenizer tokenizer = new StringTokenizer(expression, "/()[]\"'=<>", true);
+        int tokenCount = tokenizer.countTokens();
+        tokenArray = new String[tokenCount];
+
+        int index = 0;
+        
+        // this is not real XPath compiler, rather simple way to recognize basic XPaths expressions
+        // and interpret them against some TagNode instance.
+        while (tokenizer.hasMoreTokens()) {
+            tokenArray[index++] = tokenizer.nextToken();
+        }
+    }
+
+    /**
+     * Main public method for this class - a way to execute XPath expression against
+     * specified TagNode instance.
+     * @param node
+     */
+    public Object[] evaluateAgainstNode(TagNode node) throws XPatherException {
+        if (node == null) {
+            throw new XPatherException("Cannot evaluate XPath expression against null value!");
+        }
+
+        Collection collectionResult = evaluateAgainst(singleton(node), 0, tokenArray.length - 1, false, 1, 0, false, null);
+        Object[] array = new Object[collectionResult.size()];
+
+        Iterator iterator = collectionResult.iterator();
+        int index = 0;
+        while (iterator.hasNext()) {
+            array[index++] = iterator.next();
+        }
+
+        return array;
+    }
+
+    private void throwStandardException() throws XPatherException {
+        throw new XPatherException();
+    }
+
+    private Collection evaluateAgainst(Collection object,
+                                       int from,
+                                       int to,
+                                       boolean isRecursive,
+                                       int position,
+                                       int last,
+                                       boolean isFilterContext,
+                                       Collection filterSource) throws XPatherException {
+        if (from >= 0 && to < tokenArray.length && from <= to) {
+            if ("".equals(tokenArray[from].trim())) {
+                return evaluateAgainst(object, from + 1, to, isRecursive, position, last, isFilterContext, filterSource); 
+            } else if (isToken("(", from)) {
+                int closingBracket = findClosingIndex(from, to);
+                if (closingBracket > 0) {
+                    Collection value = evaluateAgainst(object, from + 1, closingBracket - 1, false, position, last, isFilterContext, filterSource);
+                    return evaluateAgainst(value, closingBracket + 1, to, false, position, last, isFilterContext, filterSource);
+                } else {
+                    throwStandardException();
+                }
+            } else if (isToken("[", from)) {
+                int closingBracket = findClosingIndex(from, to);
+                if (closingBracket > 0 && object instanceof Collection) {
+                    Collection value = filterByCondition(object, from + 1, closingBracket - 1);
+                    return evaluateAgainst(value, closingBracket + 1, to, false, position, last, isFilterContext, filterSource);
+                } else {
+                    throwStandardException();
+                }
+            } else if (isToken("\"", from) || isToken("'", from)) { // string constant
+                int closingQuote = findClosingIndex(from, to);
+                if (closingQuote > from) {
+                    Collection value = singleton( flatten(from + 1, closingQuote - 1) );
+                    return evaluateAgainst(value, closingQuote + 1, to, false, position, last, isFilterContext, filterSource);
+                } else {
+                    throwStandardException();
+                }
+            } else if ( (isToken("=", from) || isToken("<", from) || isToken(">", from)) && isFilterContext ) {     // operator inside filter
+                boolean logicValue;
+                if ( isToken("=", from + 1) && (isToken("<", from) || isToken(">", from)) ) {
+                    Collection secondObject = evaluateAgainst(filterSource, from + 2, to, false, position, last, isFilterContext, filterSource);
+                    logicValue = evaluateLogic(object, secondObject, tokenArray[from] + tokenArray[from + 1]);
+                } else {
+                    Collection secondObject = evaluateAgainst(filterSource, from + 1, to, false, position, last, isFilterContext, filterSource);
+                    logicValue = evaluateLogic(object, secondObject, tokenArray[from]);
+                }
+                return singleton(new Boolean(logicValue));
+            } else if (isToken("/", from)) {    // children of the node
+                boolean goRecursive = isToken("/", from + 1);
+                if (goRecursive) {
+                    from++;
+                }
+                if ( from < to ) {
+                    int toIndex = findClosingIndex(from, to) - 1;
+                    if (toIndex <= from) {
+                        toIndex = to;
+                    }
+                    Collection value = evaluateAgainst(object, from + 1, toIndex, goRecursive, 1, last, isFilterContext, filterSource);
+                    return evaluateAgainst(value, toIndex + 1, to, false, 1, last, isFilterContext, filterSource);
+                } else {
+                    throwStandardException();
+                }
+            } else if (isFunctionCall(from, to)) {
+                int closingBracketIndex = findClosingIndex(from + 1, to);
+                Collection funcValue = evaluateFunction(object, from, to, position, last, isFilterContext);
+                return evaluateAgainst(funcValue, closingBracketIndex + 1, to, false, 1, last, isFilterContext, filterSource);
+            } else if (isValidInteger(tokenArray[from])) {
+                Collection value = singleton(new Integer(tokenArray[from]));
+                return evaluateAgainst(value, from + 1, to, false, position, last, isFilterContext, filterSource);
+            } else if (isValidDouble(tokenArray[from])) {
+                Collection value = singleton(new Double(tokenArray[from]));
+                return evaluateAgainst(value, from + 1, to, false, position, last, isFilterContext, filterSource);
+            } else {
+                return getElementsByName(object, from, to, isRecursive, isFilterContext);
+            }
+        } else {
+           return object;
+        }
+
+        throw new XPatherException();
+    }
+
+    private String flatten(int from, int to) {
+        if (from <= to) {
+            StringBuffer result = new StringBuffer();
+            for (int i = from; i <= to; i++) {
+                result.append(tokenArray[i]);
+            }
+
+            return result.toString();
+        }
+
+        return "";
+    }
+
+    private boolean isValidInteger(String s) {
+        try {
+            Integer.parseInt(s);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+
+    private boolean isValidDouble(String s) {
+        try {
+            Double.parseDouble(s);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+
+    /**
+     * Checks if given string is valid identifier.
+     * @param s
+     */
+    private boolean isIdentifier(String s) {
+        if (s == null) {
+            return false;
+        }
+        
+        s = s.trim();
+        if (s.length() > 0) {
+            if ( !Character.isLetter(s.charAt(0)) ) {
+                return false;
+            }
+            for (int i = 1; i < s.length(); i++) {
+                final char ch = s.charAt(i);
+                if ( ch != '_' && ch != '-' && !Character.isLetterOrDigit(ch) ) {
+                    return false;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Checks if tokens in specified range represents valid function call.
+     * @param from
+     * @param to
+     * @return True if it is valid function call, false otherwise. 
+     */
+    private boolean isFunctionCall(int from, int to) {
+        if ( !isIdentifier(tokenArray[from]) && !isToken("(", from + 1) ) {
+            return false;
+        }
+        
+        return findClosingIndex(from + 1, to) > from + 1;
+    }
+
+    /**
+     * Evaluates specified function.
+     * Currently, following XPath functions are supported: last, position, text, count, data 
+     * @param source
+     * @param from
+     * @param to
+     * @param position
+     * @param last
+     * @return Collection as the result of evaluation.
+     */
+    private Collection evaluateFunction(Collection source,
+                                        int from,
+                                        int to,
+                                        int position,
+                                        int last,
+                                        boolean isFilterContext) throws XPatherException {
+        String name = tokenArray[from].trim();
+        ArrayList result = new ArrayList();
+
+        final int size = source.size();
+        Iterator iterator = source.iterator();
+        int index = 0;
+        while (iterator.hasNext()) {
+            Object curr = iterator.next();
+            index++;
+            if ( "last".equals(name) ) {
+                result.add( new Integer(isFilterContext ? last : size) );
+            } else if ( "position".equals(name) ) {
+                result.add( new Integer(isFilterContext ? position : index) );
+            } else if ( "text".equals(name) ) {
+                if (curr instanceof TagNode) {
+                    result.add( ((TagNode)curr).getText() );
+                } else if (curr instanceof String) {
+                    result.add( curr.toString() );
+                }
+            } else if ( "count".equals(name) ) {
+                Collection argumentEvaluated =
+                        evaluateAgainst(source, from + 2, to - 1, false, position, 0, isFilterContext, null);
+                result.add( new Integer(argumentEvaluated.size()) );
+            } else if ( "data".equals(name) ) {
+                Collection argumentEvaluated = evaluateAgainst(source, from + 2, to - 1, false, position, 0, isFilterContext, null);
+                Iterator it = argumentEvaluated.iterator();
+                while (it.hasNext()) {
+                    Object elem = it.next();
+                    if (elem instanceof TagNode) {
+                        result.add( ((TagNode)elem).getText() );
+                    } else if (elem instanceof String) {
+                        result.add( elem.toString() );
+                    }
+                }
+            } else {
+                throw new XPatherException("Unknown function " + name + "!");
+            }
+        }
+
+        return result;
+    }
+
+    /**
+     * Filter nodes satisfying the condition
+     * @param source
+     * @param from
+     * @param to
+     */
+    private Collection filterByCondition(Collection source, int from, int to) throws XPatherException {
+        ArrayList result = new ArrayList();
+        Iterator iterator = source.iterator();
+        int index = 0;
+        int size = source.size();
+        while (iterator.hasNext()) {
+            Object curr = iterator.next();
+            index++;
+
+            ArrayList logicValueList = new ArrayList(evaluateAgainst(singleton(curr), from, to, false, index, size, true, singleton(curr)));
+            if (logicValueList.size() >= 1) {
+                Object first = logicValueList.get(0);
+                if (first instanceof Boolean) {
+                    if ( ((Boolean)first).booleanValue() ) {
+                        result.add(curr);
+                    }
+                } else if (first instanceof Integer) {
+                    if ( ((Integer)first).intValue() == index ) {
+                        result.add(curr);
+                    }
+                } else {
+                    result.add(curr);
+                }
+            }
+        }
+        return result;
+    }
+
+    private boolean isToken(String token, int index) {
+        int len = tokenArray.length;
+        return index >= 0 && index < len && tokenArray[index].trim().equals(token.trim());
+    }
+
+    /**
+     * @param from
+     * @param to
+     * @return matching closing index in the token array for the current token, or -1 if there is
+     * no closing token within expected bounds.
+     */
+    private int findClosingIndex(int from, int to) {
+        if (from < to) {
+            String currToken = tokenArray[from];
+            
+            if ("\"".equals(currToken)) {
+                for (int i = from + 1; i <= to; i++) {
+                    if ("\"".equals(tokenArray[i])) {
+                        return i;
+                    }
+                }
+            } else if ("'".equals(currToken)) {
+                for (int i = from + 1; i <= to; i++) {
+                    if ("'".equals(tokenArray[i])) {
+                        return i;
+                    }
+                }
+            } else if ( "(".equals(currToken) || "[".equals(currToken) || "/".equals(currToken) ) {
+                boolean isQuoteClosed = true;
+                boolean isAposClosed = true;
+                int brackets = "(".equals(currToken) ? 1 : 0;
+                int angleBrackets = "[".equals(currToken) ? 1 : 0;
+                int slashes = "/".equals(currToken) ? 1 : 0;
+                for (int i = from + 1; i <= to; i++) {
+                    if ( "\"".equals(tokenArray[i]) ) {
+                        isQuoteClosed = !isQuoteClosed;
+                    } else if ( "'".equals(tokenArray[i]) ) {
+                        isAposClosed = !isAposClosed;
+                    } else if ( "(".equals(tokenArray[i]) && isQuoteClosed && isAposClosed ) {
+                        brackets++;
+                    } else if ( ")".equals(tokenArray[i]) && isQuoteClosed && isAposClosed ) {
+                        brackets--;
+                    } else if ( "[".equals(tokenArray[i]) && isQuoteClosed && isAposClosed ) {
+                        angleBrackets++;
+                    } else if ( "]".equals(tokenArray[i]) && isQuoteClosed && isAposClosed ) {
+                        angleBrackets--;
+                    } else if ( "/".equals(tokenArray[i]) && isQuoteClosed && isAposClosed && brackets == 0 && angleBrackets == 0) {
+                        slashes--;
+                    }
+
+                    if (isQuoteClosed && isAposClosed && brackets == 0 && angleBrackets == 0 && slashes == 0) {
+                        return i;
+                    }
+                }
+            }
+
+        }
+
+        return -1;
+    }
+
+    /**
+     * Checks if token is attribute (starts with @)
+     * @param token
+     */
+    private boolean isAtt(String token) {
+        return token != null && token.length() > 1 && token.startsWith("@");
+    }
+
+    /**
+     * Creates one-element collection for the specified object.
+     * @param element
+     */
+    private Collection singleton(Object element) {
+        ArrayList result = new ArrayList();
+        result.add(element);
+        return result;
+    }
+
+    /**
+     * For the given source collection and specified name, returns collection of subnodes
+     * or attribute values.
+     * @param source
+     * @param from
+     * @param to
+     * @param isRecursive
+     * @return Colection of TagNode instances or collection of String instances.              
+     */
+    private Collection getElementsByName(Collection source, int from, int to, boolean isRecursive, boolean isFilterContext) throws XPatherException {
+        String name = tokenArray[from].trim();
+
+        if (isAtt(name)) {
+            name = name.substring(1);
+            Collection result = new ArrayList();
+            Collection nodes;
+            if (isRecursive) {
+                nodes = new LinkedHashSet();
+                Iterator iterator = source.iterator();
+                while (iterator.hasNext()) {
+                    Object next = iterator.next();
+                    if (next instanceof TagNode) {
+                        TagNode node = (TagNode) next;
+                        nodes.addAll( node.getAllElementsList(true) );
+                    }
+                }
+            } else {
+                nodes = source;
+            }
+
+            Iterator iterator = nodes.iterator();
+            while (iterator.hasNext()) {
+                Object next = iterator.next();
+                if (next instanceof TagNode) {
+                    TagNode node = (TagNode) next;
+                    if ("*".equals(name)) {
+                        result.addAll( evaluateAgainst(node.getAttributes().values(), from + 1, to, false, 1, 1, isFilterContext, null) );
+                    } else {
+                        String attValue = node.getAttributeByName(name);
+                        if (attValue != null) {
+                            result.addAll( evaluateAgainst(singleton(attValue), from + 1, to, false, 1, 1, isFilterContext, null) );
+                        }
+                    }
+                } else {
+                    throwStandardException();
+                }
+            }
+            return result;
+        } else {
+            Collection result = new LinkedHashSet();
+            Iterator iterator = source.iterator();
+            int index = 0;
+            while (iterator.hasNext()) {
+                final Object next = iterator.next();
+                if (next instanceof TagNode) {
+                    TagNode node = (TagNode) next;
+                    index++;
+                    boolean isSelf = ".".equals(name);
+                    boolean isParent = "..".equals(name);
+                    boolean isAll = "*".equals(name);
+
+                    Collection subnodes;
+                    if (isSelf) {
+                        subnodes = singleton(node);
+                    } else if (isParent) {
+                        TagNode parent = node.getParent();
+                        subnodes = parent != null ? singleton(parent) : new ArrayList();
+                    } else {
+                        subnodes = isAll ? node.getChildTagList() : node.getElementListByName(name, false);
+                    }
+
+                    LinkedHashSet nodeSet = new LinkedHashSet(subnodes);
+                    Collection refinedSubnodes = evaluateAgainst(nodeSet, from + 1, to, false, index, nodeSet.size(), isFilterContext, null);
+
+                    if (isRecursive) {
+                        List childTags = node.getChildTagList();
+                        if (isSelf || isParent || isAll) {
+                            result.addAll(refinedSubnodes);
+                        }
+                        Iterator childIterator = childTags.iterator();
+                        while (childIterator.hasNext()) {
+                            TagNode childTag = (TagNode) childIterator.next();
+                            Collection childrenByName = getElementsByName(singleton(childTag), from, to, isRecursive, isFilterContext);
+                            if ( !isSelf && !isParent && !isAll && refinedSubnodes.contains(childTag) ) {
+                                result.add(childTag);
+                            }
+                            result.addAll(childrenByName);
+                        }
+                    } else {
+                        result.addAll(refinedSubnodes);
+                    }
+                } else {
+                    throwStandardException();
+                }
+            }
+            return result;
+        }
+    }
+
+    /**
+     * Evaluates logic operation on two collections.
+     * @param first
+     * @param second
+     * @param logicOperator
+     * @return Result of logic operation
+     */
+    private boolean evaluateLogic(Collection first, Collection second, String logicOperator) {
+        if (first == null || first.size() == 0 || second == null || second.size() == 0) {
+            return false;
+        }
+        Object elem1 = first.iterator().next();
+        Object elem2 = second.iterator().next();
+        if (elem1 instanceof Number && elem2 instanceof Number) {
+            double d1 = ((Number)elem1).doubleValue();
+            double d2 = ((Number)elem2).doubleValue();
+            if ("=".equals(logicOperator)) {
+                return d1 == d2;
+            } else if ("<".equals(logicOperator)) {
+                return d1 < d2;
+            } else if (">".equals(logicOperator)) {
+                return d1 > d2;
+            } else if ("<=".equals(logicOperator)) {
+                return d1 <= d2;
+            } else if (">=".equals(logicOperator)) {
+                return d1 >= d2;
+            }
+        } else {
+            String s1 = toText(elem1);
+            String s2 = toText(elem2);
+            int result = s1.compareTo(s2);
+            if ("=".equals(logicOperator)) {
+                return result == 0;
+            } else if ("<".equals(logicOperator)) {
+                return result < 0;
+            } else if (">".equals(logicOperator)) {
+                return result > 0;
+            } else if ("<=".equals(logicOperator)) {
+                return result <= 0;
+            } else if (">=".equals(logicOperator)) {
+                return result >= 0;
+            }
+        }
+
+        return false;
+    }
+
+    private String toText(Object o) {
+        if (o == null) {
+            return "";
+        } if (o instanceof TagNode) {
+            return ((TagNode)o).getText().toString();
+        } else {
+            return o.toString();
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/XPatherException.java.svn-base b/src/org/htmlcleaner/.svn/text-base/XPatherException.java.svn-base
new file mode 100644
index 0000000..811478e
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/XPatherException.java.svn-base
@@ -0,0 +1,62 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+
+    Redistribution and use of this software in source and binary forms,
+    with or without modification, are permitted provided that the following
+    conditions are met:
+
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+
+    * The name of HtmlCleaner may not be used to endorse or promote
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+
+/**
+ * <p>Exception that could occure during XPather evaluation.</p>
+ */
+public class XPatherException extends Exception {
+
+    public XPatherException() {
+        this("Error in evaluating XPath expression!");
+    }
+
+    public XPatherException(Throwable cause) {
+        super(cause);
+    }
+
+    public XPatherException(String message) {
+        super(message);
+    }
+
+    public XPatherException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/.svn/text-base/XmlSerializer.java.svn-base b/src/org/htmlcleaner/.svn/text-base/XmlSerializer.java.svn-base
new file mode 100644
index 0000000..0b4ee47
--- /dev/null
+++ b/src/org/htmlcleaner/.svn/text-base/XmlSerializer.java.svn-base
@@ -0,0 +1,230 @@
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+    All rights reserved.
+	
+    Redistribution and use of this software in source and binary forms, 
+    with or without modification, are permitted provided that the following 
+    conditions are met:
+	
+    * Redistributions of source code must retain the above
+      copyright notice, this list of conditions and the
+      following disclaimer.
+	
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the
+      following disclaimer in the documentation and/or other
+      materials provided with the distribution.
+	
+    * The name of HtmlCleaner may not be used to endorse or promote 
+      products derived from this software without specific prior
+      written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+    POSSIBILITY OF SUCH DAMAGE.
+	
+    You can contact Vladimir Nikic by sending e-mail to
+    nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+    subject line.
+*/
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * <p>Abstract XML serializer - contains common logic for descendants.</p>
+ */
+public abstract class XmlSerializer extends Serializer {
+
+	protected XmlSerializer(CleanerProperties props) {
+		super(props);
+    }
+
+    /**
+     * @deprecated Use writeToStream() instead.
+     */
+    @Deprecated
+    public void writeXmlToStream(TagNode tagNode, OutputStream out, String charset) throws IOException {
+         super.writeToStream(tagNode, out, charset);
+    }
+
+    /**
+     * @deprecated Use writeToStream() instead.
+     */
+    @Deprecated
+    public void writeXmlToStream(TagNode tagNode, OutputStream out) throws IOException {
+         super.writeToStream(tagNode, out);
+    }
+
+    /**
+     * @deprecated Use writeToFile() instead.
+     */
+    @Deprecated
+    public void writeXmlToFile(TagNode tagNode, String fileName, String charset) throws IOException {
+        super.writeToFile(tagNode, fileName, charset);
+    }
+
+    /**
+     * @deprecated Use writeToFile() instead.
+     */
+    @Deprecated
+    public void writeXmlToFile(TagNode tagNode, String fileName) throws IOException {
+        super.writeToFile(tagNode, fileName);
+    }
+
+    /**
+     * @deprecated Use getAsString() instead.
+     */
+    @Deprecated
+    public String getXmlAsString(TagNode tagNode, String charset) throws IOException {
+        return super.getAsString(tagNode, charset);
+    }
+
+    /**
+     * @deprecated Use getAsString() instead.
+     */
+    @Deprecated
+    public String getXmlAsString(TagNode tagNode) throws IOException {
+        return super.getAsString(tagNode);
+    }
+
+    /**
+     * @deprecated Use write() instead.
+     */
+    @Deprecated
+    public void writeXml(TagNode tagNode, Writer writer, String charset) throws IOException {
+        super.write(tagNode, writer, charset);
+    }
+
+    protected String escapeXml(String xmlContent) {
+        return Utils.escapeXml(xmlContent, props, false);
+    }
+
+    protected boolean dontEscape(TagNode tagNode) {
+        return props.isUseCdataForScriptAndStyle() && isScriptOrStyle(tagNode);
+    }
+
+    protected boolean isMinimizedTagSyntax(TagNode tagNode) {
+        final TagInfo tagInfo = props.getTagInfoProvider().getTagInfo(tagNode.getName());
+        return tagNode.getChildren().size() == 0 &&
+               ( props.isUseEmptyElementTags() || (tagInfo != null && tagInfo.isEmptyTag()) );
+    }
+
+    protected void serializeOpenTag(TagNode tagNode, Writer writer, boolean newLine) throws IOException {
+        String tagName = tagNode.getName();
+
+        if (Utils.isEmptyString(tagName)) {
+            return;
+        }
+        
+        boolean nsAware = props.isNamespacesAware();
+
+        Set<String> definedNSPrefixes = null;
+        Set<String> additionalNSDeclNeeded = null;
+
+        String tagPrefix = Utils.getXmlNSPrefix(tagName);
+        if (tagPrefix != null) {
+            if (nsAware) {
+                definedNSPrefixes = new HashSet<String>();
+                tagNode.collectNamespacePrefixesOnPath(definedNSPrefixes);
+                if ( !definedNSPrefixes.contains(tagPrefix) ) {
+                    additionalNSDeclNeeded = new TreeSet<String>();
+                    additionalNSDeclNeeded.add(tagPrefix);
+                }
+            } else {
+                tagName = Utils.getXmlName(tagName);
+            }
+        }
+
+        writer.write("<" + tagName);
+
+        // write attributes
+        for (Map.Entry<String, String> entry: tagNode.getAttributes().entrySet()) {
+            String attName = entry.getKey();
+            String attPrefix = Utils.getXmlNSPrefix(attName);
+            if (attPrefix != null) {
+                if (nsAware) {
+                    // collect used namespace prefixes in attributes in order to explicitly define
+                    // ns declaration if needed; otherwise it would be ill-formed xml
+                    if (definedNSPrefixes == null) {
+                        definedNSPrefixes = new HashSet<String>();
+                        tagNode.collectNamespacePrefixesOnPath(definedNSPrefixes);
+                    }
+                    if ( !definedNSPrefixes.contains(attPrefix) ) {
+                        if (additionalNSDeclNeeded == null) {
+                            additionalNSDeclNeeded = new TreeSet<String>();
+                        }
+                        additionalNSDeclNeeded.add(attPrefix);
+                    }
+                } else {
+                    attName = Utils.getXmlName(attName);
+                }
+            }
+            writer.write(" " + attName + "=\"" + escapeXml(entry.getValue()) + "\"");
+        }
+
+        // write namespace declarations 
+        if (nsAware) {
+            Map<String, String> nsDeclarations = tagNode.getNamespaceDeclarations();
+            if (nsDeclarations != null) {
+                for (Map.Entry<String, String> entry: nsDeclarations.entrySet()) {
+                    String prefix = entry.getKey();
+                    String att = "xmlns";
+                    if (prefix.length() > 0) {
+                         att += ":" + prefix;
+                    }
+                    writer.write(" " + att + "=\"" + escapeXml(entry.getValue()) + "\"");
+                }
+            }
+        }
+
+        // write additional namespace declarations needed for this tag in order xml to be well-formed
+        if (additionalNSDeclNeeded != null) {
+            for (String prefix: additionalNSDeclNeeded) {
+                writer.write(" xmlns:" + prefix + "=\"" + prefix + "\"");
+            }
+        }
+
+        if ( isMinimizedTagSyntax(tagNode) ) {
+            writer.write(" />");
+            if (newLine) {
+                writer.write("\n");
+            }
+        } else if (dontEscape(tagNode)) {
+            writer.write("><![CDATA[");
+        } else {
+            writer.write(">");
+        }
+    }
+
+    protected void serializeEndTag(TagNode tagNode, Writer writer, boolean newLine) throws IOException {
+        String tagName = tagNode.getName();
+
+        if (Utils.isEmptyString(tagName)) {
+            return;
+        }
+
+        if (dontEscape(tagNode)) {
+            writer.write("]]>");
+        }
+
+        if (Utils.getXmlNSPrefix(tagName) != null && !props.isNamespacesAware()) {
+            tagName = Utils.getXmlName(tagName);
+        }
+        writer.write( "</" + tagName + ">" );
+
+        if (newLine) {
+            writer.write("\n");
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/org/htmlcleaner/BaseToken.java b/src/org/htmlcleaner/BaseToken.java
new file mode 100644
index 0000000..200aae0
--- /dev/null
+++ b/src/org/htmlcleaner/BaseToken.java
@@ -0,0 +1,67 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * <p>
+ * Base token interface. Tokens are individual entities recognized by HTML
+ * parser.
+ * </p>
+ */
+public interface BaseToken {
+    void serialize(Serializer serializer, Writer writer) throws IOException;
+}
diff --git a/src/org/htmlcleaner/BrowserCompactXmlSerializer.java b/src/org/htmlcleaner/BrowserCompactXmlSerializer.java
new file mode 100644
index 0000000..ee5e518
--- /dev/null
+++ b/src/org/htmlcleaner/BrowserCompactXmlSerializer.java
@@ -0,0 +1,120 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.Writer;
+import java.io.IOException;
+import java.util.List;
+import java.util.ListIterator;
+
+/**
+ * <p>
+ * Broswer compact XML serializer - creates resulting XML by stripping
+ * whitespaces wherever possible, but preserving single whitespace where at
+ * least one exists. This behaviour is well suited for web-browsers, which
+ * usualy treat multiple whitespaces as single one, but make diffrence between
+ * single whitespace and empty text.
+ * </p>
+ */
+public class BrowserCompactXmlSerializer extends XmlSerializer {
+    public BrowserCompactXmlSerializer(final CleanerProperties props) {
+        super(props);
+    }
+
+    protected void serialize(final TagNode tagNode, final Writer writer) throws IOException {
+        serializeOpenTag(tagNode, writer, false);
+
+        final List<Object> tagChildren = tagNode.getChildren();
+        if (!isMinimizedTagSyntax(tagNode)) {
+            final ListIterator<Object> childrenIt = tagChildren.listIterator();
+            while (childrenIt.hasNext()) {
+                final Object item = childrenIt.next();
+                if (item instanceof ContentNode) {
+                    String content = item.toString();
+                    final boolean startsWithSpace = content.length() > 0 && Character.isWhitespace(content.charAt(0));
+                    final boolean endsWithSpace = content.length() > 1
+                            && Character.isWhitespace(content.charAt(content.length() - 1));
+                    content = dontEscape(tagNode) ? content.trim().replaceAll("]]>", "]]&gt;") : escapeXml(content
+                            .trim());
+
+                    if (startsWithSpace) {
+                        writer.write(' ');
+                    }
+
+                    if (content.length() != 0) {
+                        writer.write(content);
+                        if (endsWithSpace) {
+                            writer.write(' ');
+                        }
+                    }
+
+                    if (childrenIt.hasNext()) {
+                        if (!Utils.isWhitespaceString(childrenIt.next())) {
+                            writer.write("\n");
+                        }
+                        childrenIt.previous();
+                    }
+                } else if (item instanceof CommentNode) {
+                    final String content = ((CommentNode) item).getCommentedContent().trim();
+                    writer.write(content);
+                } else if (item instanceof BaseToken) {
+                    ((BaseToken) item).serialize(this, writer);
+                }
+            }
+
+            serializeEndTag(tagNode, writer, false);
+        }
+    }
+
+}
diff --git a/src/org/htmlcleaner/CleanerProperties.java b/src/org/htmlcleaner/CleanerProperties.java
new file mode 100644
index 0000000..48d5de3
--- /dev/null
+++ b/src/org/htmlcleaner/CleanerProperties.java
@@ -0,0 +1,277 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+/**
+ * Properties defining cleaner's behaviour
+ */
+public class CleanerProperties {
+    public static final String BOOL_ATT_SELF = "self";
+    public static final String BOOL_ATT_EMPTY = "empty";
+    public static final String BOOL_ATT_TRUE = "true";
+
+    private ITagInfoProvider tagInfoProvider = null;
+    private boolean advancedXmlEscape = true;
+    private boolean transResCharsToNCR = false;
+    private boolean useCdataForScriptAndStyle = true;
+    private boolean translateSpecialEntities = true;
+    private boolean transSpecialEntitiesToNCR = false;
+    private boolean recognizeUnicodeChars = true;
+    private boolean omitUnknownTags = false;
+    private boolean treatUnknownTagsAsContent = false;
+    private boolean omitDeprecatedTags = false;
+    private boolean treatDeprecatedTagsAsContent = false;
+    private boolean omitComments = false;
+    private boolean omitXmlDeclaration = false;
+    private boolean omitDoctypeDeclaration = true;
+    private boolean omitHtmlEnvelope = false;
+    private boolean useEmptyElementTags = true;
+    private boolean allowMultiWordAttributes = true;
+    private boolean allowHtmlInsideAttributes = false;
+    private boolean ignoreQuestAndExclam = true;
+    private boolean namespacesAware = true;
+    private String hyphenReplacementInComment = "=";
+    private String booleanAttributeValues = BOOL_ATT_SELF;
+    private String pruneTags = null;
+
+    public String getBooleanAttributeValues() {
+        return booleanAttributeValues;
+    }
+
+    public String getHyphenReplacementInComment() {
+        return hyphenReplacementInComment;
+    }
+
+    public String getPruneTags() {
+        return pruneTags;
+    }
+
+    public ITagInfoProvider getTagInfoProvider() {
+        return tagInfoProvider;
+    }
+
+    public boolean isAdvancedXmlEscape() {
+        return advancedXmlEscape;
+    }
+
+    public boolean isAllowHtmlInsideAttributes() {
+        return allowHtmlInsideAttributes;
+    }
+
+    public boolean isAllowMultiWordAttributes() {
+        return allowMultiWordAttributes;
+    }
+
+    public boolean isIgnoreQuestAndExclam() {
+        return ignoreQuestAndExclam;
+    }
+
+    public boolean isNamespacesAware() {
+        return namespacesAware;
+    }
+
+    public boolean isOmitComments() {
+        return omitComments;
+    }
+
+    public boolean isOmitDeprecatedTags() {
+        return omitDeprecatedTags;
+    }
+
+    public boolean isOmitDoctypeDeclaration() {
+        return omitDoctypeDeclaration;
+    }
+
+    public boolean isOmitHtmlEnvelope() {
+        return omitHtmlEnvelope;
+    }
+
+    public boolean isOmitUnknownTags() {
+        return omitUnknownTags;
+    }
+
+    public boolean isOmitXmlDeclaration() {
+        return omitXmlDeclaration;
+    }
+
+    public boolean isRecognizeUnicodeChars() {
+        return recognizeUnicodeChars;
+    }
+
+    public boolean isTranslateSpecialEntities() {
+        return translateSpecialEntities;
+    }
+
+    public boolean isTransResCharsToNCR() {
+        return transResCharsToNCR;
+    }
+
+    public boolean isTransSpecialEntitiesToNCR() {
+        return transSpecialEntitiesToNCR;
+    }
+
+    public boolean isTreatDeprecatedTagsAsContent() {
+        return treatDeprecatedTagsAsContent;
+    }
+
+    public boolean isTreatUnknownTagsAsContent() {
+        return treatUnknownTagsAsContent;
+    }
+
+    public boolean isUseCdataForScriptAndStyle() {
+        return useCdataForScriptAndStyle;
+    }
+
+    public boolean isUseEmptyElementTags() {
+        return useEmptyElementTags;
+    }
+
+    public void setAdvancedXmlEscape(final boolean advancedXmlEscape) {
+        this.advancedXmlEscape = advancedXmlEscape;
+    }
+
+    public void setAllowHtmlInsideAttributes(final boolean allowHtmlInsideAttributes) {
+        this.allowHtmlInsideAttributes = allowHtmlInsideAttributes;
+    }
+
+    public void setAllowMultiWordAttributes(final boolean allowMultiWordAttributes) {
+        this.allowMultiWordAttributes = allowMultiWordAttributes;
+    }
+
+    public void setBooleanAttributeValues(final String booleanAttributeValues) {
+        if (BOOL_ATT_SELF.equalsIgnoreCase(booleanAttributeValues)
+                || BOOL_ATT_EMPTY.equalsIgnoreCase(booleanAttributeValues)
+                || BOOL_ATT_TRUE.equalsIgnoreCase(booleanAttributeValues)) {
+            this.booleanAttributeValues = booleanAttributeValues.toLowerCase();
+        } else {
+            this.booleanAttributeValues = BOOL_ATT_SELF;
+        }
+    }
+
+    public void setHyphenReplacementInComment(final String hyphenReplacementInComment) {
+        this.hyphenReplacementInComment = hyphenReplacementInComment;
+    }
+
+    public void setIgnoreQuestAndExclam(final boolean ignoreQuestAndExclam) {
+        this.ignoreQuestAndExclam = ignoreQuestAndExclam;
+    }
+
+    public void setNamespacesAware(final boolean namespacesAware) {
+        this.namespacesAware = namespacesAware;
+    }
+
+    public void setOmitComments(final boolean omitComments) {
+        this.omitComments = omitComments;
+    }
+
+    public void setOmitDeprecatedTags(final boolean omitDeprecatedTags) {
+        this.omitDeprecatedTags = omitDeprecatedTags;
+    }
+
+    public void setOmitDoctypeDeclaration(final boolean omitDoctypeDeclaration) {
+        this.omitDoctypeDeclaration = omitDoctypeDeclaration;
+    }
+
+    public void setOmitHtmlEnvelope(final boolean omitHtmlEnvelope) {
+        this.omitHtmlEnvelope = omitHtmlEnvelope;
+    }
+
+    public void setOmitUnknownTags(final boolean omitUnknownTags) {
+        this.omitUnknownTags = omitUnknownTags;
+    }
+
+    public void setOmitXmlDeclaration(final boolean omitXmlDeclaration) {
+        this.omitXmlDeclaration = omitXmlDeclaration;
+    }
+
+    public void setPruneTags(final String pruneTags) {
+        this.pruneTags = pruneTags;
+    }
+
+    public void setRecognizeUnicodeChars(final boolean recognizeUnicodeChars) {
+        this.recognizeUnicodeChars = recognizeUnicodeChars;
+    }
+
+    public void setTagInfoProvider(final ITagInfoProvider tagInfoProvider) {
+        this.tagInfoProvider = tagInfoProvider;
+    }
+
+    public void setTranslateSpecialEntities(final boolean translateSpecialEntities) {
+        this.translateSpecialEntities = translateSpecialEntities;
+    }
+
+    public void setTransResCharsToNCR(final boolean transResCharsToNCR) {
+        this.transResCharsToNCR = transResCharsToNCR;
+    }
+
+    public void setTransSpecialEntitiesToNCR(final boolean transSpecialEntitiesToNCR) {
+        this.transSpecialEntitiesToNCR = transSpecialEntitiesToNCR;
+    }
+
+    public void setTreatDeprecatedTagsAsContent(final boolean treatDeprecatedTagsAsContent) {
+        this.treatDeprecatedTagsAsContent = treatDeprecatedTagsAsContent;
+    }
+
+    public void setTreatUnknownTagsAsContent(final boolean treatUnknownTagsAsContent) {
+        this.treatUnknownTagsAsContent = treatUnknownTagsAsContent;
+    }
+
+    public void setUseCdataForScriptAndStyle(final boolean useCdataForScriptAndStyle) {
+        this.useCdataForScriptAndStyle = useCdataForScriptAndStyle;
+    }
+
+    public void setUseEmptyElementTags(final boolean useEmptyElementTags) {
+        this.useEmptyElementTags = useEmptyElementTags;
+    }
+}
diff --git a/src/org/htmlcleaner/CleanerTransformations.java b/src/org/htmlcleaner/CleanerTransformations.java
new file mode 100644
index 0000000..131070c
--- /dev/null
+++ b/src/org/htmlcleaner/CleanerTransformations.java
@@ -0,0 +1,84 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Contains transformation collection.
+ */
+public class CleanerTransformations {
+
+    final private Map<String, TagTransformation> mappings = new HashMap<String, TagTransformation>();
+
+    /**
+     * Adds specified tag transformation to the collection.
+     * 
+     * @param tagTransformation
+     */
+    public void addTransformation(final TagTransformation tagTransformation) {
+        if (tagTransformation != null) {
+            mappings.put(tagTransformation.getSourceTag(), tagTransformation);
+        }
+    }
+
+    public TagTransformation getTransformation(final String tagName) {
+        return tagName == null ? null : (TagTransformation) mappings.get(tagName.toLowerCase());
+    }
+
+    public boolean hasTransformationForTag(final String tagName) {
+        return tagName != null && mappings.containsKey(tagName.toLowerCase());
+    }
+}
diff --git a/src/org/htmlcleaner/CommentNode.java b/src/org/htmlcleaner/CommentNode.java
new file mode 100644
index 0000000..398850a
--- /dev/null
+++ b/src/org/htmlcleaner/CommentNode.java
@@ -0,0 +1,86 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * <p>
+ * HTML comment token.
+ * </p>
+ */
+public class CommentNode implements BaseToken, HtmlNode {
+    final private StringBuilder content;
+
+    public CommentNode(final String content) {
+        this.content = new StringBuilder(content);
+    }
+
+    public String getCommentedContent() {
+        return "<!--" + content + "-->";
+    }
+
+    public StringBuilder getContent() {
+        return content;
+    }
+
+    public void serialize(final Serializer serializer, final Writer writer) throws IOException {
+        writer.write(getCommentedContent());
+    }
+
+    public String toString() {
+        return getCommentedContent();
+    }
+}
diff --git a/src/org/htmlcleaner/CompactHtmlSerializer.java b/src/org/htmlcleaner/CompactHtmlSerializer.java
new file mode 100644
index 0000000..b639e75
--- /dev/null
+++ b/src/org/htmlcleaner/CompactHtmlSerializer.java
@@ -0,0 +1,131 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.util.List;
+import java.util.ListIterator;
+
+/**
+ * <p>
+ * Compact HTML serializer - creates resulting HTML by stripping whitespaces
+ * wherever possible.
+ * </p>
+ */
+public class CompactHtmlSerializer extends HtmlSerializer {
+    private int openPreTags = 0;
+
+    public CompactHtmlSerializer(final CleanerProperties props) {
+        super(props);
+    }
+
+    protected void serialize(final TagNode tagNode, final Writer writer) throws IOException {
+        final boolean isPreTag = "pre".equalsIgnoreCase(tagNode.getName());
+        if (isPreTag) {
+            openPreTags++;
+        }
+
+        serializeOpenTag(tagNode, writer, false);
+
+        final List<Object> tagChildren = tagNode.getChildren();
+        if (!isMinimizedTagSyntax(tagNode)) {
+            final ListIterator<Object> childrenIt = tagChildren.listIterator();
+            while (childrenIt.hasNext()) {
+                final Object item = childrenIt.next();
+                if (item instanceof ContentNode) {
+                    String content = item.toString();
+                    if (openPreTags > 0) {
+                        writer.write(content);
+                    } else {
+                        final boolean startsWithSpace = content.length() > 0
+                                && Character.isWhitespace(content.charAt(0));
+                        final boolean endsWithSpace = content.length() > 1
+                                && Character.isWhitespace(content.charAt(content.length() - 1));
+                        content = dontEscape(tagNode) ? content.trim() : escapeText(content.trim());
+
+                        if (startsWithSpace) {
+                            writer.write(' ');
+                        }
+
+                        if (content.length() != 0) {
+                            writer.write(content);
+                            if (endsWithSpace) {
+                                writer.write(' ');
+                            }
+                        }
+
+                        if (childrenIt.hasNext()) {
+                            if (!Utils.isWhitespaceString(childrenIt.next())) {
+                                writer.write("\n");
+                            }
+                            childrenIt.previous();
+                        }
+                    }
+                } else if (item instanceof CommentNode) {
+                    final String content = ((CommentNode) item).getCommentedContent().trim();
+                    writer.write(content);
+                } else if (item instanceof BaseToken) {
+                    ((BaseToken) item).serialize(this, writer);
+                }
+            }
+
+            serializeEndTag(tagNode, writer, false);
+            if (isPreTag) {
+                openPreTags--;
+            }
+        }
+    }
+
+}
diff --git a/src/org/htmlcleaner/CompactXmlSerializer.java b/src/org/htmlcleaner/CompactXmlSerializer.java
new file mode 100644
index 0000000..72221bf
--- /dev/null
+++ b/src/org/htmlcleaner/CompactXmlSerializer.java
@@ -0,0 +1,100 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.util.*;
+
+/**
+ * <p>
+ * Compact XML serializer - creates resulting XML by stripping whitespaces.
+ * </p>
+ */
+public class CompactXmlSerializer extends XmlSerializer {
+    public CompactXmlSerializer(final CleanerProperties props) {
+        super(props);
+    }
+
+    protected void serialize(final TagNode tagNode, final Writer writer) throws IOException {
+        serializeOpenTag(tagNode, writer, false);
+
+        final List<Object> tagChildren = tagNode.getChildren();
+        if (!isMinimizedTagSyntax(tagNode)) {
+            final ListIterator<Object> childrenIt = tagChildren.listIterator();
+            while (childrenIt.hasNext()) {
+                final Object item = childrenIt.next();
+                if (item instanceof ContentNode) {
+                    final String content = item.toString().trim();
+                    writer.write(dontEscape(tagNode) ? content.replaceAll("]]>", "]]&gt;") : escapeXml(content));
+
+                    if (childrenIt.hasNext()) {
+                        if (!Utils.isWhitespaceString(childrenIt.next())) {
+                            writer.write("\n");
+                        }
+                        childrenIt.previous();
+                    }
+                } else if (item instanceof CommentNode) {
+                    final String content = ((CommentNode) item).getCommentedContent().trim();
+                    writer.write(content);
+                } else if (item instanceof BaseToken) {
+                    ((BaseToken) item).serialize(this, writer);
+                }
+            }
+
+            serializeEndTag(tagNode, writer, false);
+        }
+    }
+
+}
diff --git a/src/org/htmlcleaner/ContentNode.java b/src/org/htmlcleaner/ContentNode.java
new file mode 100644
index 0000000..382d876
--- /dev/null
+++ b/src/org/htmlcleaner/ContentNode.java
@@ -0,0 +1,88 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * <p>
+ * HTML text token.
+ * </p>
+ */
+public class ContentNode implements BaseToken, HtmlNode {
+    final private StringBuilder content;
+
+    public ContentNode(final char content[], final int len) {
+        this.content = new StringBuilder(len + 16);
+        this.content.append(content, 0, len);
+    }
+
+    public ContentNode(final String content) {
+        this.content = new StringBuilder(content);
+    }
+
+    public StringBuilder getContent() {
+        return content;
+    }
+
+    public void serialize(final Serializer serializer, final Writer writer) throws IOException {
+        writer.write(content.toString());
+    }
+
+    public String toString() {
+        return content.toString();
+    }
+
+}
diff --git a/src/org/htmlcleaner/DefaultTagProvider.java b/src/org/htmlcleaner/DefaultTagProvider.java
new file mode 100644
index 0000000..445e783
--- /dev/null
+++ b/src/org/htmlcleaner/DefaultTagProvider.java
@@ -0,0 +1,522 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.util.HashMap;
+
+/**
+ * This class is automatically created from ConfigFileTagProvider which reads
+ * default XML configuration file with tag descriptions. It is used as default
+ * tag info provider. Class is created for performance purposes - parsing XML
+ * file requires some processing time.
+ */
+public class DefaultTagProvider extends HashMap<String, TagInfo> implements ITagInfoProvider {
+    private static final long serialVersionUID = 1L;
+
+    // singleton instance, used if no other TagInfoProvider is specified
+    private static DefaultTagProvider instance;
+
+    /**
+     * @return Singleton instance of this class.
+     */
+    public static synchronized DefaultTagProvider getInstance() {
+        if (instance == null) {
+            instance = new DefaultTagProvider();
+        }
+        return instance;
+    }
+
+    public DefaultTagProvider() {
+        super();
+
+        TagInfo tagInfo;
+
+        tagInfo = new TagInfo("div", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("div", tagInfo);
+
+        tagInfo = new TagInfo("span", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("span", tagInfo);
+
+        tagInfo = new TagInfo("meta", TagInfo.CONTENT_NONE, TagInfo.HEAD, false, false, false);
+        this.put("meta", tagInfo);
+
+        tagInfo = new TagInfo("link", TagInfo.CONTENT_NONE, TagInfo.HEAD, false, false, false);
+        this.put("link", tagInfo);
+
+        tagInfo = new TagInfo("title", TagInfo.CONTENT_TEXT, TagInfo.HEAD, false, true, false);
+        this.put("title", tagInfo);
+
+        tagInfo = new TagInfo("style", TagInfo.CONTENT_TEXT, TagInfo.HEAD, false, false, false);
+        this.put("style", tagInfo);
+
+        tagInfo = new TagInfo("bgsound", TagInfo.CONTENT_NONE, TagInfo.HEAD, false, false, false);
+        this.put("bgsound", tagInfo);
+
+        tagInfo = new TagInfo("h1", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo
+                .defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h1", tagInfo);
+
+        tagInfo = new TagInfo("h2", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo
+                .defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h2", tagInfo);
+
+        tagInfo = new TagInfo("h3", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo
+                .defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h3", tagInfo);
+
+        tagInfo = new TagInfo("h4", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo
+                .defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h4", tagInfo);
+
+        tagInfo = new TagInfo("h5", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo
+                .defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h5", tagInfo);
+
+        tagInfo = new TagInfo("h6", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo
+                .defineCloseBeforeTags("h1,h2,h3,h4,h5,h6,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("h6", tagInfo);
+
+        tagInfo = new TagInfo("p", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("p", tagInfo);
+
+        tagInfo = new TagInfo("strong", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("strong", tagInfo);
+
+        tagInfo = new TagInfo("em", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("em", tagInfo);
+
+        tagInfo = new TagInfo("abbr", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("abbr", tagInfo);
+
+        tagInfo = new TagInfo("acronym", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("acronym", tagInfo);
+
+        tagInfo = new TagInfo("address", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("address", tagInfo);
+
+        tagInfo = new TagInfo("bdo", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("bdo", tagInfo);
+
+        tagInfo = new TagInfo("blockquote", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("blockquote", tagInfo);
+
+        tagInfo = new TagInfo("cite", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("cite", tagInfo);
+
+        tagInfo = new TagInfo("q", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("q", tagInfo);
+
+        tagInfo = new TagInfo("code", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("code", tagInfo);
+
+        tagInfo = new TagInfo("ins", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("ins", tagInfo);
+
+        tagInfo = new TagInfo("del", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("del", tagInfo);
+
+        tagInfo = new TagInfo("dfn", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("dfn", tagInfo);
+
+        tagInfo = new TagInfo("kbd", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("kbd", tagInfo);
+
+        tagInfo = new TagInfo("pre", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("pre", tagInfo);
+
+        tagInfo = new TagInfo("samp", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("samp", tagInfo);
+
+        tagInfo = new TagInfo("listing", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("listing", tagInfo);
+
+        tagInfo = new TagInfo("var", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("var", tagInfo);
+
+        tagInfo = new TagInfo("br", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        this.put("br", tagInfo);
+
+        tagInfo = new TagInfo("wbr", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        this.put("wbr", tagInfo);
+
+        tagInfo = new TagInfo("nobr", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("nobr");
+        this.put("nobr", tagInfo);
+
+        tagInfo = new TagInfo("xmp", TagInfo.CONTENT_TEXT, TagInfo.BODY, false, false, false);
+        this.put("xmp", tagInfo);
+
+        tagInfo = new TagInfo("a", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("a");
+        this.put("a", tagInfo);
+
+        tagInfo = new TagInfo("base", TagInfo.CONTENT_NONE, TagInfo.HEAD, false, false, false);
+        this.put("base", tagInfo);
+
+        tagInfo = new TagInfo("img", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        this.put("img", tagInfo);
+
+        tagInfo = new TagInfo("area", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("map");
+        tagInfo.defineCloseBeforeTags("area");
+        this.put("area", tagInfo);
+
+        tagInfo = new TagInfo("map", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("map");
+        this.put("map", tagInfo);
+
+        tagInfo = new TagInfo("object", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("object", tagInfo);
+
+        tagInfo = new TagInfo("param", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("param", tagInfo);
+
+        tagInfo = new TagInfo("applet", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        this.put("applet", tagInfo);
+
+        tagInfo = new TagInfo("xml", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("xml", tagInfo);
+
+        tagInfo = new TagInfo("ul", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("ul", tagInfo);
+
+        tagInfo = new TagInfo("ol", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("ol", tagInfo);
+
+        tagInfo = new TagInfo("li", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("li,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("li", tagInfo);
+
+        tagInfo = new TagInfo("dl", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("dl", tagInfo);
+
+        tagInfo = new TagInfo("dt", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("dt,dd");
+        this.put("dt", tagInfo);
+
+        tagInfo = new TagInfo("dd", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("dt,dd");
+        this.put("dd", tagInfo);
+
+        tagInfo = new TagInfo("menu", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("menu", tagInfo);
+
+        tagInfo = new TagInfo("dir", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("dir", tagInfo);
+
+        tagInfo = new TagInfo("table", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineAllowedChildrenTags("tr,tbody,thead,tfoot,colgroup,col,form,caption,tr");
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo
+                .defineCloseBeforeTags("tr,thead,tbody,tfoot,caption,colgroup,table,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param");
+        this.put("table", tagInfo);
+
+        tagInfo = new TagInfo("tr", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineRequiredEnclosingTags("tbody");
+        tagInfo.defineAllowedChildrenTags("td,th");
+        tagInfo.defineHigherLevelTags("thead,tfoot");
+        tagInfo.defineCloseBeforeTags("tr,td,th,caption,colgroup");
+        this.put("tr", tagInfo);
+
+        tagInfo = new TagInfo("td", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineRequiredEnclosingTags("tr");
+        tagInfo.defineCloseBeforeTags("td,th,caption,colgroup");
+        this.put("td", tagInfo);
+
+        tagInfo = new TagInfo("th", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineRequiredEnclosingTags("tr");
+        tagInfo.defineCloseBeforeTags("td,th,caption,colgroup");
+        this.put("th", tagInfo);
+
+        tagInfo = new TagInfo("tbody", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineAllowedChildrenTags("tr,form");
+        tagInfo.defineCloseBeforeTags("td,th,tr,tbody,thead,tfoot,caption,colgroup");
+        this.put("tbody", tagInfo);
+
+        tagInfo = new TagInfo("thead", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineAllowedChildrenTags("tr,form");
+        tagInfo.defineCloseBeforeTags("td,th,tr,tbody,thead,tfoot,caption,colgroup");
+        this.put("thead", tagInfo);
+
+        tagInfo = new TagInfo("tfoot", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineAllowedChildrenTags("tr,form");
+        tagInfo.defineCloseBeforeTags("td,th,tr,tbody,thead,tfoot,caption,colgroup");
+        this.put("tfoot", tagInfo);
+
+        tagInfo = new TagInfo("col", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        this.put("col", tagInfo);
+
+        tagInfo = new TagInfo("colgroup", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineAllowedChildrenTags("col");
+        tagInfo.defineCloseBeforeTags("td,th,tr,tbody,thead,tfoot,caption,colgroup");
+        this.put("colgroup", tagInfo);
+
+        tagInfo = new TagInfo("caption", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineFatalTags("table");
+        tagInfo.defineCloseBeforeTags("td,th,tr,tbody,thead,tfoot,caption,colgroup");
+        this.put("caption", tagInfo);
+
+        tagInfo = new TagInfo("form", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, true);
+        tagInfo.defineForbiddenTags("form");
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo
+                .defineCloseBeforeTags("option,optgroup,textarea,select,fieldset,p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("form", tagInfo);
+
+        tagInfo = new TagInfo("input", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("select,optgroup,option");
+        this.put("input", tagInfo);
+
+        tagInfo = new TagInfo("textarea", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("select,optgroup,option");
+        this.put("textarea", tagInfo);
+
+        tagInfo = new TagInfo("select", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, true);
+        tagInfo.defineAllowedChildrenTags("option,optgroup");
+        tagInfo.defineCloseBeforeTags("option,optgroup,select");
+        this.put("select", tagInfo);
+
+        tagInfo = new TagInfo("option", TagInfo.CONTENT_TEXT, TagInfo.BODY, false, false, true);
+        tagInfo.defineFatalTags("select");
+        tagInfo.defineCloseBeforeTags("option");
+        this.put("option", tagInfo);
+
+        tagInfo = new TagInfo("optgroup", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, true);
+        tagInfo.defineFatalTags("select");
+        tagInfo.defineAllowedChildrenTags("option");
+        tagInfo.defineCloseBeforeTags("optgroup");
+        this.put("optgroup", tagInfo);
+
+        tagInfo = new TagInfo("button", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeTags("select,optgroup,option");
+        this.put("button", tagInfo);
+
+        tagInfo = new TagInfo("label", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("label", tagInfo);
+
+        tagInfo = new TagInfo("fieldset", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("fieldset", tagInfo);
+
+        tagInfo = new TagInfo("legend", TagInfo.CONTENT_TEXT, TagInfo.BODY, false, false, false);
+        tagInfo.defineRequiredEnclosingTags("fieldset");
+        tagInfo.defineCloseBeforeTags("legend");
+        this.put("legend", tagInfo);
+
+        tagInfo = new TagInfo("isindex", TagInfo.CONTENT_NONE, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("isindex", tagInfo);
+
+        tagInfo = new TagInfo("script", TagInfo.CONTENT_ALL, TagInfo.HEAD_AND_BODY, false, false, false);
+        this.put("script", tagInfo);
+
+        tagInfo = new TagInfo("noscript", TagInfo.CONTENT_ALL, TagInfo.HEAD_AND_BODY, false, false, false);
+        this.put("noscript", tagInfo);
+
+        tagInfo = new TagInfo("b", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("u,i,tt,sub,sup,big,small,strike,blink,s");
+        this.put("b", tagInfo);
+
+        tagInfo = new TagInfo("i", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,tt,sub,sup,big,small,strike,blink,s");
+        this.put("i", tagInfo);
+
+        tagInfo = new TagInfo("u", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,i,tt,sub,sup,big,small,strike,blink,s");
+        this.put("u", tagInfo);
+
+        tagInfo = new TagInfo("tt", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,sub,sup,big,small,strike,blink,s");
+        this.put("tt", tagInfo);
+
+        tagInfo = new TagInfo("sub", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sup,big,small,strike,blink,s");
+        this.put("sub", tagInfo);
+
+        tagInfo = new TagInfo("sup", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,big,small,strike,blink,s");
+        this.put("sup", tagInfo);
+
+        tagInfo = new TagInfo("big", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,sup,small,strike,blink,s");
+        this.put("big", tagInfo);
+
+        tagInfo = new TagInfo("small", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,sup,big,strike,blink,s");
+        this.put("small", tagInfo);
+
+        tagInfo = new TagInfo("strike", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,sup,big,small,blink,s");
+        this.put("strike", tagInfo);
+
+        tagInfo = new TagInfo("blink", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,sup,big,small,strike,s");
+        this.put("blink", tagInfo);
+
+        tagInfo = new TagInfo("marquee", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("marquee", tagInfo);
+
+        tagInfo = new TagInfo("s", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseInsideCopyAfterTags("b,u,i,tt,sub,sup,big,small,strike,blink");
+        this.put("s", tagInfo);
+
+        tagInfo = new TagInfo("hr", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("hr", tagInfo);
+
+        tagInfo = new TagInfo("font", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        this.put("font", tagInfo);
+
+        tagInfo = new TagInfo("basefont", TagInfo.CONTENT_NONE, TagInfo.BODY, true, false, false);
+        this.put("basefont", tagInfo);
+
+        tagInfo = new TagInfo("center", TagInfo.CONTENT_ALL, TagInfo.BODY, true, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("center", tagInfo);
+
+        tagInfo = new TagInfo("comment", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("comment", tagInfo);
+
+        tagInfo = new TagInfo("server", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("server", tagInfo);
+
+        tagInfo = new TagInfo("iframe", TagInfo.CONTENT_ALL, TagInfo.BODY, false, false, false);
+        this.put("iframe", tagInfo);
+
+        tagInfo = new TagInfo("embed", TagInfo.CONTENT_NONE, TagInfo.BODY, false, false, false);
+        tagInfo.defineCloseBeforeCopyInsideTags("a,bdo,strong,em,q,b,i,u,tt,sub,sup,big,small,strike,s,font");
+        tagInfo.defineCloseBeforeTags("p,address,label,abbr,acronym,dfn,kbd,samp,var,cite,code,param,xml");
+        this.put("embed", tagInfo);
+    }
+
+    /**
+     * Sets new tag info.
+     * 
+     * @param tagInfo
+     *            tag info to be added to the provider.
+     */
+    public void addTagInfo(TagInfo tagInfo) {
+        if (tagInfo != null) {
+            put(tagInfo.getName().toLowerCase(), tagInfo);
+        }
+    }
+
+    public TagInfo getTagInfo(String tagName) {
+        return get(tagName);
+    }
+
+    /**
+     * Removes tag info with specified name.
+     * 
+     * @param tagName
+     *            Name of the tag to be removed from the tag provider.
+     */
+    public void removeTagInfo(String tagName) {
+        if (tagName != null) {
+            remove(tagName.toLowerCase());
+        }
+    }
+
+}
diff --git a/src/org/htmlcleaner/DoctypeToken.java b/src/org/htmlcleaner/DoctypeToken.java
new file mode 100644
index 0000000..a84616e
--- /dev/null
+++ b/src/org/htmlcleaner/DoctypeToken.java
@@ -0,0 +1,146 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * <p>
+ * HTML doctype token.
+ * </p>
+ */
+public class DoctypeToken implements BaseToken {
+    private static String clean(String s) {
+        if (s != null) {
+            s = s.replace('>', ' ');
+            s = s.replace('<', ' ');
+            s = s.replace('&', ' ');
+            s = s.replace('\'', ' ');
+            s = s.replace('\"', ' ');
+        }
+
+        return s;
+    }
+
+    final private String part1;
+    final private String part2;
+    final private String part3;
+    final private String part4;
+
+    public DoctypeToken(final String part1, final String part2, final String part3, final String part4) {
+        this.part1 = part1 != null ? part1.toUpperCase() : part1;
+        this.part2 = part2 != null ? part2.toUpperCase() : part2;
+        this.part3 = clean(part3);
+        this.part4 = clean(part4);
+    }
+
+    public String getContent() {
+        String result = "<!DOCTYPE " + part1 + " ";
+        result += part2 + " \"" + part3 + "\"";
+        if (part4 != null && !"".equals(part4)) {
+            result += " \"" + part4 + "\"";
+        }
+        result += ">";
+        return result;
+    }
+
+    public String getName() {
+        return "";
+    }
+
+    public String getPart1() {
+        return part1;
+    }
+
+    public String getPart2() {
+        return part2;
+    }
+
+    public String getPart3() {
+        return part3;
+    }
+
+    public String getPart4() {
+        return part4;
+    }
+
+    public boolean isValid() {
+        if (part1 == null || "".equals(part1)) {
+            return false;
+        }
+
+        if (!"public".equalsIgnoreCase(part2) && !"system".equalsIgnoreCase(part2)) {
+            return false;
+        }
+
+        if ("system".equalsIgnoreCase(part2) && part4 != null && !"".equals(part4)) {
+            return false;
+        }
+
+        if ("public".equalsIgnoreCase(part2) && (part4 == null || "".equals(part4))) {
+            return false;
+        }
+
+        return true;
+    }
+
+    public void serialize(final Serializer serializer, final Writer writer) throws IOException {
+        writer.write(getContent() + "\n");
+    }
+
+    public String toString() {
+        return getContent();
+    }
+}
diff --git a/src/org/htmlcleaner/DomSerializer.java b/src/org/htmlcleaner/DomSerializer.java
new file mode 100644
index 0000000..c98e3ba
--- /dev/null
+++ b/src/org/htmlcleaner/DomSerializer.java
@@ -0,0 +1,157 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+package org.htmlcleaner;
+
+import org.w3c.dom.Comment;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * <p>
+ * DOM serializer - creates xml DOM.
+ * </p>
+ */
+public class DomSerializer {
+    protected CleanerProperties props;
+    protected boolean escapeXml = true;
+
+    public DomSerializer(final CleanerProperties props, final boolean escapeXml) {
+        this.props = props;
+        this.escapeXml = escapeXml;
+    }
+
+    public DomSerializer(final CleanerProperties props) {
+        this(props, true);
+    }
+
+    public Document createDOM(final TagNode rootNode) throws ParserConfigurationException {
+        final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+        final Document document = factory.newDocumentBuilder().newDocument();
+        final Element rootElement = createElement(rootNode, document);
+        document.appendChild(rootElement);
+        setAttributes(rootNode, rootElement);
+        createSubnodes(document, rootElement, rootNode.getChildren());
+        return document;
+    }
+
+    private Element createElement(final TagNode node, final Document document) {
+        String name = node.getName();
+        final boolean nsAware = props.isNamespacesAware();
+        final String prefix = Utils.getXmlNSPrefix(name);
+        final Map<String, String> nsDeclarations = node.getNamespaceDeclarations();
+        String nsURI = null;
+        if (prefix != null) {
+            if (nsAware) {
+                if (nsDeclarations != null) {
+                    nsURI = nsDeclarations.get(prefix);
+                }
+                if (nsURI == null) {
+                    nsURI = node.getNamespaceURIOnPath(prefix);
+                }
+                if (nsURI == null) {
+                    nsURI = prefix;
+                }
+            } else {
+                name = Utils.getXmlName(name);
+            }
+        } else {
+            if (nsAware) {
+                if (nsDeclarations != null) {
+                    nsURI = nsDeclarations.get("");
+                }
+                if (nsURI == null) {
+                    nsURI = node.getNamespaceURIOnPath(prefix);
+                }
+            }
+        }
+
+        if (nsAware && nsURI != null) {
+            return document.createElementNS(nsURI, name);
+        } else {
+            return document.createElement(name);
+        }
+    }
+
+    private void setAttributes(final TagNode node, final Element element) {
+        for (final Map.Entry<String, String> entry : node.getAttributes().entrySet()) {
+            final String attrName = entry.getKey();
+            String attrValue = entry.getValue();
+            if (escapeXml) {
+                attrValue = Utils.escapeXml(attrValue, props, true);
+            }
+
+            final String attPrefix = Utils.getXmlNSPrefix(attrName);
+            if (attPrefix != null) {
+                if (props.isNamespacesAware()) {
+                    String nsURI = node.getNamespaceURIOnPath(attPrefix);
+                    if (nsURI == null) {
+                        nsURI = attPrefix;
+                    }
+                    element.setAttributeNS(nsURI, attrName, attrValue);
+                } else {
+                    element.setAttribute(Utils.getXmlName(attrName), attrValue);
+                }
+            } else {
+                element.setAttribute(attrName, attrValue);
+            }
+        }
+    }
+
+    private void createSubnodes(final Document document, final Element element, final List<Object> tagChildren) {
+        if (tagChildren != null) {
+            final Iterator<Object> it = tagChildren.iterator();
+            while (it.hasNext()) {
+                final Object item = it.next();
+                if (item instanceof CommentNode) {
+                    final CommentNode commentNode = (CommentNode) item;
+                    final Comment comment = document.createComment(commentNode.getContent().toString());
+                    element.appendChild(comment);
+                } else if (item instanceof ContentNode) {
+                    final String nodeName = element.getNodeName();
+                    String content = item.toString();
+                    final boolean specialCase = props.isUseCdataForScriptAndStyle()
+                            && ("script".equalsIgnoreCase(nodeName) || "style".equalsIgnoreCase(nodeName));
+                    if (escapeXml && !specialCase) {
+                        content = Utils.escapeXml(content, props, true);
+                    }
+                    element.appendChild(specialCase ? document.createCDATASection(content) : document
+                            .createTextNode(content));
+                } else if (item instanceof TagNode) {
+                    final TagNode subTagNode = (TagNode) item;
+                    final Element subelement = createElement(subTagNode, document);
+
+                    setAttributes(subTagNode, subelement);
+
+                    // recursively create subnodes
+                    createSubnodes(document, subelement, subTagNode.getChildren());
+
+                    element.appendChild(subelement);
+                } else if (item instanceof List) {
+                    final List sublist = (List) item;
+                    createSubnodes(document, element, sublist);
+                }
+            }
+        }
+    }
+
+}
diff --git a/src/org/htmlcleaner/EndTagToken.java b/src/org/htmlcleaner/EndTagToken.java
new file mode 100644
index 0000000..0ead7a4
--- /dev/null
+++ b/src/org/htmlcleaner/EndTagToken.java
@@ -0,0 +1,80 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.Writer;
+
+/**
+ * <p>
+ * HTML tag end token.
+ * </p>
+ */
+public class EndTagToken extends TagToken {
+    public EndTagToken() {
+        super();
+    }
+
+    public EndTagToken(final String name) {
+        super(name == null ? null : name.toLowerCase());
+    }
+
+    public void setAttribute(final String attName, final String attValue) {
+        // do nothing - simply ignore attributes in closing tag
+    }
+
+    public void serialize(final Serializer serializer, final Writer writer) {
+        // do nothing - simply ignore serialization
+    }
+
+}
diff --git a/src/org/htmlcleaner/FastHtmlSerializer.java b/src/org/htmlcleaner/FastHtmlSerializer.java
new file mode 100644
index 0000000..9f9e715
--- /dev/null
+++ b/src/org/htmlcleaner/FastHtmlSerializer.java
@@ -0,0 +1,64 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Stack;
+
+public class FastHtmlSerializer extends HtmlSerializer {
+    public FastHtmlSerializer(final CleanerProperties props) {
+        super(props);
+    }
+
+    protected void serialize(final TagNode tagNode, final Writer writer) throws IOException {
+        final Stack<TagNode> tagStack = new Stack<TagNode>();
+        final Stack<List<Object>> childStack = new Stack<List<Object>>();
+        serializeOpenTag(tagNode, writer, false);
+        if (!isMinimizedTagSyntax(tagNode)) {
+            tagStack.push(tagNode);
+            childStack.push(new ArrayList<Object>(tagNode.getChildren()));
+            while (!tagStack.isEmpty()) {
+                final TagNode tag = tagStack.peek();
+                final List<Object> children = childStack.peek();
+                if (children.isEmpty()) {
+                    tagStack.pop();
+                    childStack.pop();
+                    if (!isMinimizedTagSyntax(tag)) {
+                        serializeEndTag(tag, writer, false);
+                    }
+                } else {
+                    final Object item = children.get(0);
+                    children.remove(0);
+                    if (item instanceof ContentNode) {
+                        final String content = item.toString();
+                        writer.write(dontEscape(tag) ? content : escapeText(content));
+                    } else if (item instanceof TagNode) {
+                        final TagNode currentTag = (TagNode) item;
+                        serializeOpenTag(currentTag, writer, false);
+                        tagStack.push(currentTag);
+                        childStack.push(new ArrayList<Object>(currentTag.getChildren()));
+                    } else if (item instanceof BaseToken) {
+                        ((BaseToken) item).serialize(this, writer);
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/src/org/htmlcleaner/HtmlCleaner.java b/src/org/htmlcleaner/HtmlCleaner.java
new file mode 100644
index 0000000..84adae4
--- /dev/null
+++ b/src/org/htmlcleaner/HtmlCleaner.java
@@ -0,0 +1,932 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.*;
+
+/**
+ * Main HtmlCleaner class.
+ * 
+ * <p>
+ * It represents public interface to the user. It's task is to call tokenizer
+ * with specified source HTML, traverse list of produced token list and create
+ * internal object model. It also offers a set of methods to write resulting XML
+ * to string, file or any output stream.
+ * </p>
+ * <p>
+ * Typical usage is the following:
+ * </p>
+ * 
+ * <xmp> // create an instance of HtmlCleaner HtmlCleaner cleaner = new
+ * HtmlCleaner();
+ * 
+ * // take default cleaner properties CleanerProperties props =
+ * cleaner.getProperties();
+ * 
+ * // customize cleaner's behaviour with property setters props.setXXX(...);
+ * 
+ * // Clean HTML taken from simple string, file, URL, input stream, // input
+ * source or reader. Result is root node of created // tree-like structure.
+ * Single cleaner instance may be safely used // multiple times. TagNode node =
+ * cleaner.clean(...);
+ * 
+ * // optionally find parts of the DOM or modify some nodes TagNode[] myNodes =
+ * node.getElementsByXXX(...); // and/or Object[] myNodes =
+ * node.evaluateXPath(xPathExpression); // and/or aNode.removeFromTree(); //
+ * and/or aNode.addAttribute(attName, attValue); // and/or
+ * aNode.removeAttribute(attName, attValue); // and/or
+ * cleaner.setInnerHtml(aNode, htmlContent); // and/or do some other tree
+ * manipulation/traversal
+ * 
+ * // serialize a node to a file, output stream, DOM, JDom... new
+ * XXXSerializer(props).writeXmlXXX(aNode, ...); myJDom = new
+ * JDomSerializer(props, true).createJDom(aNode); myDom = new
+ * DomSerializer(props, true).createDOM(aNode); </xmp>
+ */
+public class HtmlCleaner {
+
+    private class CleanTimeValues {
+        private OpenTags openTags;
+        private boolean headOpened = false;
+        private boolean bodyOpened = false;
+        private Set headTags = new LinkedHashSet();
+        private Set allTags = new TreeSet();
+
+        private TagNode htmlNode;
+        private TagNode bodyNode;
+        private TagNode headNode;
+        private TagNode rootNode;
+
+        private Set<String> pruneTagSet = new HashSet<String>();
+        private Set<TagNode> pruneNodeSet = new HashSet<TagNode>();
+    }
+
+    /**
+     * Class that contains information and mathods for managing list of open,
+     * but unhandled tags.
+     */
+    private class OpenTags {
+        private List<TagPos> list = new ArrayList<TagPos>();
+        private TagPos last = null;
+        private Set<String> set = new HashSet<String>();
+
+        private void addTag(String tagName, int position) {
+            last = new TagPos(position, tagName);
+            list.add(last);
+            set.add(tagName);
+        }
+
+        private TagPos findFirstTagPos() {
+            return list.isEmpty() ? null : list.get(0);
+        }
+
+        private TagPos findTag(String tagName) {
+            if (tagName != null) {
+                final ListIterator<TagPos> it = list.listIterator(list.size());
+                String fatalTag = null;
+                final TagInfo fatalInfo = tagInfoProvider.getTagInfo(tagName);
+                if (fatalInfo != null) {
+                    fatalTag = fatalInfo.getFatalTag();
+                }
+
+                while (it.hasPrevious()) {
+                    final TagPos currTagPos = it.previous();
+                    if (tagName.equals(currTagPos.name)) {
+                        return currTagPos;
+                    } else if (fatalTag != null && fatalTag.equals(currTagPos.name)) {
+                        // do not search past a fatal tag for this tag
+                        return null;
+                    }
+                }
+            }
+
+            return null;
+        }
+
+        private TagPos findTagToPlaceRubbish() {
+            TagPos result = null, prev = null;
+
+            if (!isEmpty()) {
+                final ListIterator<TagPos> it = list.listIterator(list.size());
+                while (it.hasPrevious()) {
+                    result = it.previous();
+                    if (result.info == null || result.info.allowsAnything()) {
+                        if (prev != null) {
+                            return prev;
+                        }
+                    }
+                    prev = result;
+                }
+            }
+
+            return result;
+        }
+
+        private TagPos getLastTagPos() {
+            return last;
+        }
+
+        private boolean isEmpty() {
+            return list.isEmpty();
+        }
+
+        private void removeTag(final String tagName) {
+            final ListIterator<TagPos> it = list.listIterator(list.size());
+            while (it.hasPrevious()) {
+                final TagPos currTagPos = it.previous();
+                if (tagName.equals(currTagPos.name)) {
+                    it.remove();
+                    break;
+                }
+            }
+
+            last = list.isEmpty() ? null : list.get(list.size() - 1);
+        }
+
+        /**
+         * Checks if any of tags specified in the set are already open.
+         * 
+         * @param tags
+         */
+        private boolean someAlreadyOpen(final Set tags) {
+            final Iterator<TagPos> it = list.iterator();
+            while (it.hasNext()) {
+                final TagPos curr = it.next();
+                if (tags.contains(curr.name)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        private boolean tagEncountered(final String tagName) {
+            return set.contains(tagName);
+        }
+
+        private boolean tagExists(final String tagName) {
+            return findTag(tagName) != null;
+        }
+    }
+
+    /**
+     * Contains information about single open tag
+     */
+    private class TagPos {
+        private int position;
+        private String name;
+        private TagInfo info;
+
+        TagPos(final int position, final String name) {
+            this.position = position;
+            this.name = name;
+            this.info = tagInfoProvider.getTagInfo(name);
+        }
+    }
+
+    public static final String DEFAULT_CHARSET = System.getProperty("file.encoding");
+    private CleanerProperties properties;
+    private ITagInfoProvider tagInfoProvider;
+    private CleanerTransformations transformations = null;
+
+    /**
+     * Constructor - creates cleaner instance with default tag info provider and
+     * default properties.
+     */
+    public HtmlCleaner() {
+        this(null, null);
+    }
+
+    /**
+     * Constructor - creates the instance with default tag info provider and
+     * specified properties
+     * 
+     * @param properties
+     *            Properties used during parsing and serializing
+     */
+    public HtmlCleaner(final CleanerProperties properties) {
+        this(null, properties);
+    }
+
+    /**
+     * Constructor - creates the instance with specified tag info provider and
+     * default properties
+     * 
+     * @param tagInfoProvider
+     *            Provider for tag filtering and balancing
+     */
+    public HtmlCleaner(final ITagInfoProvider tagInfoProvider) {
+        this(tagInfoProvider, null);
+    }
+
+    /**
+     * Constructor - creates the instance with specified tag info provider and
+     * specified properties
+     * 
+     * @param tagInfoProvider
+     *            Provider for tag filtering and balancing
+     * @param properties
+     *            Properties used during parsing and serializing
+     */
+    public HtmlCleaner(final ITagInfoProvider tagInfoProvider, final CleanerProperties properties) {
+        this.tagInfoProvider = (tagInfoProvider == null) ? DefaultTagProvider.getInstance() : tagInfoProvider;
+        this.properties = properties == null ? new CleanerProperties() : properties;
+        this.properties.setTagInfoProvider(this.tagInfoProvider);
+    }
+
+    /**
+     * Add attributes from specified map to the specified tag. If some attribute
+     * already exist it is preserved.
+     * 
+     * @param tag
+     * @param attributes
+     */
+    private void addAttributesToTag(final TagNode tag, final Map attributes) {
+        if (attributes != null) {
+            final Map tagAttributes = tag.getAttributes();
+            final Iterator it = attributes.entrySet().iterator();
+            while (it.hasNext()) {
+                final Map.Entry currEntry = (Map.Entry) it.next();
+                final String attName = (String) currEntry.getKey();
+                if (!tagAttributes.containsKey(attName)) {
+                    final String attValue = (String) currEntry.getValue();
+                    tag.setAttribute(attName, attValue);
+                }
+            }
+        }
+    }
+
+    /**
+     * Checks if specified tag with specified info is candidate for moving to
+     * head section.
+     * 
+     * @param tagInfo
+     * @param tagNode
+     */
+    private void addPossibleHeadCandidate(final TagInfo tagInfo, final TagNode tagNode,
+            final CleanTimeValues cleanTimeValues) {
+        if (tagInfo != null && tagNode != null) {
+            if (tagInfo.isHeadTag()
+                    || (tagInfo.isHeadAndBodyTag() && cleanTimeValues.headOpened && !cleanTimeValues.bodyOpened)) {
+                cleanTimeValues.headTags.add(tagNode);
+            }
+        }
+    }
+
+    /**
+     * Assigns root node to internal variable. Root node of the result depends
+     * on parameter "omitHtmlEnvelope". If it is set, then first child of the
+     * body will be root node, or html will be root node otherwise.
+     */
+    private void calculateRootNode(final CleanTimeValues cleanTimeValues) {
+        cleanTimeValues.rootNode = cleanTimeValues.htmlNode;
+
+        if (properties.isOmitHtmlEnvelope()) {
+            final List bodyChildren = cleanTimeValues.bodyNode.getChildren();
+            if (bodyChildren != null) {
+                for (Object child : bodyChildren) {
+                    // if found child that is tag itself, then return it
+                    if (child instanceof TagNode) {
+                        cleanTimeValues.rootNode = (TagNode) child;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    public TagNode clean(final File file) throws IOException {
+        return clean(file, DEFAULT_CHARSET);
+    }
+
+    public TagNode clean(final File file, final String charset) throws IOException {
+        final FileInputStream in = new FileInputStream(file);
+        final Reader reader = new InputStreamReader(in, charset);
+        return clean(reader);
+    }
+
+    public TagNode clean(final InputStream in) throws IOException {
+        return clean(in, DEFAULT_CHARSET);
+    }
+
+    public TagNode clean(final InputStream in, final String charset) throws IOException {
+        return clean(new InputStreamReader(in, charset));
+    }
+
+    public TagNode clean(final Reader reader) throws IOException {
+        return clean(reader, new CleanTimeValues());
+    }
+
+    /**
+     * Basic version of the cleaning call.
+     * 
+     * @param reader
+     * @return An instance of TagNode object which is the root of the XML tree.
+     * @throws IOException
+     */
+    public TagNode clean(final Reader reader, final CleanTimeValues cleanTimeValues) throws IOException {
+        cleanTimeValues.openTags = new OpenTags();
+        cleanTimeValues.headOpened = false;
+        cleanTimeValues.bodyOpened = false;
+        cleanTimeValues.headTags.clear();
+        cleanTimeValues.allTags.clear();
+        setPruneTags(properties.getPruneTags(), cleanTimeValues);
+
+        cleanTimeValues.htmlNode = createTagNode("html", cleanTimeValues);
+        cleanTimeValues.bodyNode = createTagNode("body", cleanTimeValues);
+        cleanTimeValues.headNode = createTagNode("head", cleanTimeValues);
+        cleanTimeValues.rootNode = null;
+        cleanTimeValues.htmlNode.addChild(cleanTimeValues.headNode);
+        cleanTimeValues.htmlNode.addChild(cleanTimeValues.bodyNode);
+
+        final HtmlTokenizer htmlTokenizer = new HtmlTokenizer(reader, properties, transformations, tagInfoProvider) {
+            @Override
+            public TagNode createTagNode(final String name) {
+                return HtmlCleaner.this.createTagNode(name, cleanTimeValues);
+            }
+
+            @Override
+            public void makeTree(final List<BaseToken> tokenList) {
+                HtmlCleaner.this.makeTree(tokenList, tokenList.listIterator(tokenList.size() - 1), cleanTimeValues);
+            }
+        };
+
+        htmlTokenizer.start();
+
+        final List<BaseToken> nodeList = htmlTokenizer.getTokenList();
+        closeAll(nodeList, cleanTimeValues);
+        createDocumentNodes(nodeList, cleanTimeValues);
+
+        calculateRootNode(cleanTimeValues);
+
+        // if there are some nodes to prune from tree
+        if (cleanTimeValues.pruneNodeSet != null && !cleanTimeValues.pruneNodeSet.isEmpty()) {
+            final Iterator iterator = cleanTimeValues.pruneNodeSet.iterator();
+            while (iterator.hasNext()) {
+                final TagNode tagNode = (TagNode) iterator.next();
+                final TagNode parent = tagNode.getParent();
+                if (parent != null) {
+                    parent.removeChild(tagNode);
+                }
+            }
+        }
+
+        cleanTimeValues.rootNode.setDocType(htmlTokenizer.getDocType());
+
+        return cleanTimeValues.rootNode;
+    }
+
+    public TagNode clean(final String htmlContent) {
+        try {
+            return clean(new StringReader(htmlContent));
+        } catch (final IOException e) {
+            // should never happen because reading from StringReader
+            throw new HtmlCleanerException(e);
+        }
+    }
+
+    /**
+     * Creates instance from the content downloaded from specified URL. HTML
+     * encoding is resolved following the attempts in the sequence: 1. reading
+     * Content-Type response header, 2. Analyzing META tags at the beginning of
+     * the html, 3. Using platform's default charset.
+     * 
+     * @param url
+     * @return
+     * @throws IOException
+     */
+    public TagNode clean(final URL url) throws IOException {
+        return clean(url, null);
+    }
+
+    public TagNode clean(final URL url, String charset) throws IOException {
+        final URLConnection urlConnection = url.openConnection();
+        if (charset == null) {
+            charset = Utils.getCharsetFromContentTypeString(urlConnection.getHeaderField("Content-Type"));
+        }
+        if (charset == null) {
+            charset = Utils.getCharsetFromContent(url);
+        }
+        if (charset == null) {
+            charset = DEFAULT_CHARSET;
+        }
+        return clean(url.openStream(), charset);
+    }
+
+    /**
+     * Close all unclosed tags if there are any.
+     */
+    private void closeAll(final List<BaseToken> nodeList, final CleanTimeValues cleanTimeValues) {
+        final TagPos firstTagPos = cleanTimeValues.openTags.findFirstTagPos();
+        if (firstTagPos != null) {
+            closeSnippet(nodeList, firstTagPos, null, cleanTimeValues);
+        }
+    }
+
+    private List closeSnippet(final List nodeList, final TagPos tagPos, final Object toNode,
+            final CleanTimeValues cleanTimeValues) {
+        final List closed = new ArrayList();
+        final ListIterator it = nodeList.listIterator(tagPos.position);
+
+        TagNode tagNode = null;
+        Object item = it.next();
+        boolean isListEnd = false;
+
+        while ((toNode == null && !isListEnd) || (toNode != null && item != toNode)) {
+            if (isStartToken(item)) {
+                final TagNode startTagToken = (TagNode) item;
+                closed.add(startTagToken);
+                final List<BaseToken> itemsToMove = startTagToken.getItemsToMove();
+                if (itemsToMove != null) {
+                    final OpenTags prevOpenTags = cleanTimeValues.openTags;
+                    cleanTimeValues.openTags = new OpenTags();
+                    makeTree(itemsToMove, itemsToMove.listIterator(0), cleanTimeValues);
+                    closeAll(itemsToMove, cleanTimeValues);
+                    startTagToken.setItemsToMove(null);
+                    cleanTimeValues.openTags = prevOpenTags;
+                }
+
+                final TagNode newTagNode = createTagNode(startTagToken);
+                final TagInfo tag = tagInfoProvider.getTagInfo(newTagNode.getName());
+                addPossibleHeadCandidate(tag, newTagNode, cleanTimeValues);
+                if (tagNode != null) {
+                    tagNode.addChildren(itemsToMove);
+                    tagNode.addChild(newTagNode);
+                    it.set(null);
+                } else {
+                    if (itemsToMove != null) {
+                        itemsToMove.add(newTagNode);
+                        it.set(itemsToMove);
+                    } else {
+                        it.set(newTagNode);
+                    }
+                }
+
+                cleanTimeValues.openTags.removeTag(newTagNode.getName());
+                tagNode = newTagNode;
+            } else {
+                if (tagNode != null) {
+                    it.set(null);
+                    if (item != null) {
+                        tagNode.addChild(item);
+                    }
+                }
+            }
+
+            if (it.hasNext()) {
+                item = it.next();
+            } else {
+                isListEnd = true;
+            }
+        }
+
+        return closed;
+    }
+
+    private void createDocumentNodes(final List listNodes, final CleanTimeValues cleanTimeValues) {
+        final Iterator it = listNodes.iterator();
+        while (it.hasNext()) {
+            final Object child = it.next();
+
+            if (child == null) {
+                continue;
+            }
+
+            boolean toAdd = true;
+
+            if (child instanceof TagNode) {
+                final TagNode node = (TagNode) child;
+                final TagInfo tag = tagInfoProvider.getTagInfo(node.getName());
+                addPossibleHeadCandidate(tag, node, cleanTimeValues);
+            } else {
+                if (child instanceof ContentNode) {
+                    toAdd = !"".equals(child.toString());
+                }
+            }
+
+            if (toAdd) {
+                cleanTimeValues.bodyNode.addChild(child);
+            }
+        }
+
+        // move all viable head candidates to head section of the tree
+        final Iterator headIterator = cleanTimeValues.headTags.iterator();
+        while (headIterator.hasNext()) {
+            final TagNode headCandidateNode = (TagNode) headIterator.next();
+
+            // check if this node is already inside a candidate for moving to
+            // head
+            TagNode parent = headCandidateNode.getParent();
+            boolean toMove = true;
+            while (parent != null) {
+                if (cleanTimeValues.headTags.contains(parent)) {
+                    toMove = false;
+                    break;
+                }
+                parent = parent.getParent();
+            }
+
+            if (toMove) {
+                headCandidateNode.removeFromTree();
+                cleanTimeValues.headNode.addChild(headCandidateNode);
+            }
+        }
+    }
+
+    private TagNode createTagNode(final String name, final CleanTimeValues cleanTimeValues) {
+        final TagNode node = new TagNode(name);
+        if (cleanTimeValues.pruneTagSet != null && name != null
+                && cleanTimeValues.pruneTagSet.contains(name.toLowerCase())) {
+            cleanTimeValues.pruneNodeSet.add(node);
+        }
+        return node;
+    }
+
+    private TagNode createTagNode(final TagNode startTagToken) {
+        startTagToken.setFormed();
+        return startTagToken;
+    }
+
+    /**
+     * For the specified node, returns it's content as string.
+     * 
+     * @param node
+     */
+    public String getInnerHtml(final TagNode node) {
+        if (node != null) {
+            try {
+                final String content = new SimpleXmlSerializer(properties).getAsString(node);
+                int index1 = content.indexOf("<" + node.getName());
+                index1 = content.indexOf('>', index1 + 1);
+                final int index2 = content.lastIndexOf('<');
+                return index1 >= 0 && index1 <= index2 ? content.substring(index1 + 1, index2) : null;
+            } catch (final IOException e) {
+                throw new HtmlCleanerException(e);
+            }
+        } else {
+            throw new HtmlCleanerException("Cannot return inner html of the null node!");
+        }
+    }
+
+    public CleanerProperties getProperties() {
+        return properties;
+    }
+
+    /**
+     * @return ITagInfoProvider instance for this HtmlCleaner
+     */
+    public ITagInfoProvider getTagInfoProvider() {
+        return tagInfoProvider;
+    }
+
+    /**
+     * @return Transormations defined for this instance of cleaner
+     */
+    public CleanerTransformations getTransformations() {
+        return transformations;
+    }
+
+    private boolean isAllowedInLastOpenTag(final BaseToken token, final CleanTimeValues cleanTimeValues) {
+        final TagPos last = cleanTimeValues.openTags.getLastTagPos();
+        if (last != null) {
+            if (last.info != null) {
+                return last.info.allowsItem(token);
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Checks if open fatal tag is missing if there is a fatal tag for the
+     * specified tag.
+     * 
+     * @param tag
+     */
+    private boolean isFatalTagSatisfied(final TagInfo tag, final CleanTimeValues cleanTimeValues) {
+        if (tag != null) {
+            final String fatalTagName = tag.getFatalTag();
+            return fatalTagName == null ? true : cleanTimeValues.openTags.tagExists(fatalTagName);
+        }
+
+        return true;
+    }
+
+    private boolean isStartToken(final Object o) {
+        return (o instanceof TagNode) && !((TagNode) o).isFormed();
+    }
+
+    private TagNode makeTagNodeCopy(final TagNode tagNode, final CleanTimeValues cleanTimeValues) {
+        final TagNode copy = tagNode.makeCopy();
+        if (cleanTimeValues.pruneTagSet != null && cleanTimeValues.pruneTagSet.contains(tagNode.getName())) {
+            cleanTimeValues.pruneNodeSet.add(copy);
+        }
+        return copy;
+    }
+
+    public void makeTree(final List<BaseToken> nodeList, final ListIterator<BaseToken> nodeIterator,
+            final CleanTimeValues cleanTimeValues) {
+        // process while not reach the end of the list
+        while (nodeIterator.hasNext()) {
+            final BaseToken token = nodeIterator.next();
+
+            if (token instanceof EndTagToken) {
+                final EndTagToken endTagToken = (EndTagToken) token;
+                final String tagName = endTagToken.getName();
+                final TagInfo tag = tagInfoProvider.getTagInfo(tagName);
+
+                if ((tag == null && properties.isOmitUnknownTags())
+                        || (tag != null && tag.isDeprecated() && properties.isOmitDeprecatedTags())) {
+                    nodeIterator.set(null);
+                } else if (tag != null && !tag.allowsBody()) {
+                    nodeIterator.set(null);
+                } else {
+                    final TagPos matchingPosition = cleanTimeValues.openTags.findTag(tagName);
+
+                    if (matchingPosition != null) {
+                        final List closed = closeSnippet(nodeList, matchingPosition, endTagToken, cleanTimeValues);
+                        nodeIterator.set(null);
+                        for (int i = closed.size() - 1; i >= 1; i--) {
+                            final TagNode closedTag = (TagNode) closed.get(i);
+                            if (tag != null && tag.isContinueAfter(closedTag.getName())) {
+                                nodeIterator.add(makeTagNodeCopy(closedTag, cleanTimeValues));
+                                nodeIterator.previous();
+                            }
+                        }
+                    } else if (!isAllowedInLastOpenTag(token, cleanTimeValues)) {
+                        saveToLastOpenTag(nodeList, token, cleanTimeValues);
+                        nodeIterator.set(null);
+                    }
+                }
+            } else if (isStartToken(token)) {
+                final TagNode startTagToken = (TagNode) token;
+                final String tagName = startTagToken.getName();
+                final TagInfo tag = tagInfoProvider.getTagInfo(tagName);
+
+                final TagPos lastTagPos = cleanTimeValues.openTags.isEmpty() ? null : cleanTimeValues.openTags
+                        .getLastTagPos();
+                final TagInfo lastTagInfo = lastTagPos == null ? null : tagInfoProvider.getTagInfo(lastTagPos.name);
+
+                // add tag to set of all tags
+                cleanTimeValues.allTags.add(tagName);
+
+                // HTML open tag
+                if ("html".equals(tagName)) {
+                    addAttributesToTag(cleanTimeValues.htmlNode, startTagToken.getAttributes());
+                    nodeIterator.set(null);
+                    // BODY open tag
+                } else if ("body".equals(tagName)) {
+                    cleanTimeValues.bodyOpened = true;
+                    addAttributesToTag(cleanTimeValues.bodyNode, startTagToken.getAttributes());
+                    nodeIterator.set(null);
+                    // HEAD open tag
+                } else if ("head".equals(tagName)) {
+                    cleanTimeValues.headOpened = true;
+                    addAttributesToTag(cleanTimeValues.headNode, startTagToken.getAttributes());
+                    nodeIterator.set(null);
+                    // unknown HTML tag and unknown tags are not allowed
+                } else if ((tag == null && properties.isOmitUnknownTags())
+                        || (tag != null && tag.isDeprecated() && properties.isOmitDeprecatedTags())) {
+                    nodeIterator.set(null);
+                    // if current tag is unknown, unknown tags are allowed and
+                    // last open tag doesn't allow any other tags in its body
+                } else if (tag == null && lastTagInfo != null && !lastTagInfo.allowsAnything()) {
+                    saveToLastOpenTag(nodeList, token, cleanTimeValues);
+                    nodeIterator.set(null);
+                } else if (tag != null && tag.hasPermittedTags()
+                        && cleanTimeValues.openTags.someAlreadyOpen(tag.getPermittedTags())) {
+                    nodeIterator.set(null);
+                    // if tag that must be unique, ignore this occurence
+                } else if (tag != null && tag.isUnique() && cleanTimeValues.openTags.tagEncountered(tagName)) {
+                    nodeIterator.set(null);
+                    // if there is no required outer tag without that this open
+                    // tag is ignored
+                } else if (!isFatalTagSatisfied(tag, cleanTimeValues)) {
+                    nodeIterator.set(null);
+                    // if there is no required parent tag - it must be added
+                    // before this open tag
+                } else if (mustAddRequiredParent(tag, cleanTimeValues)) {
+                    final String requiredParent = tag.getRequiredParent();
+                    final TagNode requiredParentStartToken = createTagNode(requiredParent, cleanTimeValues);
+                    nodeIterator.previous();
+                    nodeIterator.add(requiredParentStartToken);
+                    nodeIterator.previous();
+                    // if last open tag has lower presidence then this, it must
+                    // be closed
+                } else if (tag != null && lastTagPos != null && tag.isMustCloseTag(lastTagInfo)) {
+                    final List closed = closeSnippet(nodeList, lastTagPos, startTagToken, cleanTimeValues);
+                    final int closedCount = closed.size();
+
+                    // it is needed to copy some tags again in front of current,
+                    // if there are any
+                    if (tag.hasCopyTags() && closedCount > 0) {
+                        // first iterates over list from the back and collects
+                        // all start tokens
+                        // in sequence that must be copied
+                        final ListIterator closedIt = closed.listIterator(closedCount);
+                        final List toBeCopied = new ArrayList();
+                        while (closedIt.hasPrevious()) {
+                            final TagNode currStartToken = (TagNode) closedIt.previous();
+                            if (tag.isCopy(currStartToken.getName())) {
+                                toBeCopied.add(0, currStartToken);
+                            } else {
+                                break;
+                            }
+                        }
+
+                        if (toBeCopied.size() > 0) {
+                            final Iterator copyIt = toBeCopied.iterator();
+                            while (copyIt.hasNext()) {
+                                final TagNode currStartToken = (TagNode) copyIt.next();
+                                nodeIterator.add(makeTagNodeCopy(currStartToken, cleanTimeValues));
+                            }
+
+                            // back to the previous place, before adding new
+                            // start tokens
+                            for (int i = 0; i < toBeCopied.size(); i++) {
+                                nodeIterator.previous();
+                            }
+                        }
+                    }
+
+                    nodeIterator.previous();
+                    // if this open tag is not allowed inside last open tag,
+                    // then it must be moved to the place where it can be
+                } else if (!isAllowedInLastOpenTag(token, cleanTimeValues)) {
+                    saveToLastOpenTag(nodeList, token, cleanTimeValues);
+                    nodeIterator.set(null);
+                    // if it is known HTML tag but doesn't allow body, it is
+                    // immediately closed
+                } else if (tag != null && !tag.allowsBody()) {
+                    final TagNode newTagNode = createTagNode(startTagToken);
+                    addPossibleHeadCandidate(tag, newTagNode, cleanTimeValues);
+                    nodeIterator.set(newTagNode);
+                    // default case - just remember this open tag and go further
+                } else {
+                    cleanTimeValues.openTags.addTag(tagName, nodeIterator.previousIndex());
+                }
+            } else {
+                if (!isAllowedInLastOpenTag(token, cleanTimeValues)) {
+                    saveToLastOpenTag(nodeList, token, cleanTimeValues);
+                    nodeIterator.set(null);
+                }
+            }
+        }
+    }
+
+    /**
+     * Check if specified tag requires parent tag, but that parent tag is
+     * missing in the appropriate context.
+     * 
+     * @param tag
+     */
+    private boolean mustAddRequiredParent(final TagInfo tag, final CleanTimeValues cleanTimeValues) {
+        if (tag != null) {
+            final String requiredParent = tag.getRequiredParent();
+            if (requiredParent != null) {
+                final String fatalTag = tag.getFatalTag();
+                int fatalTagPositon = -1;
+                if (fatalTag != null) {
+                    final TagPos tagPos = cleanTimeValues.openTags.findTag(fatalTag);
+                    if (tagPos != null) {
+                        fatalTagPositon = tagPos.position;
+                    }
+                }
+
+                // iterates through the list of open tags from the end and check
+                // if there is some higher
+                final ListIterator<TagPos> it = cleanTimeValues.openTags.list
+                        .listIterator(cleanTimeValues.openTags.list.size());
+                while (it.hasPrevious()) {
+                    final TagPos currTagPos = it.previous();
+                    if (tag.isHigher(currTagPos.name)) {
+                        return currTagPos.position <= fatalTagPositon;
+                    }
+                }
+
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private void saveToLastOpenTag(final List nodeList, final BaseToken tokenToAdd,
+            final CleanTimeValues cleanTimeValues) {
+        final TagPos last = cleanTimeValues.openTags.getLastTagPos();
+        if (last != null && last.info != null && last.info.isIgnorePermitted()) {
+            return;
+        }
+
+        final TagPos rubbishPos = cleanTimeValues.openTags.findTagToPlaceRubbish();
+        if (rubbishPos != null) {
+            final TagNode startTagToken = (TagNode) nodeList.get(rubbishPos.position);
+            startTagToken.addItemForMoving(tokenToAdd);
+        }
+    }
+
+    /**
+     * For the specified tag node, defines it's html content. This causes
+     * cleaner to reclean given html portion and insert it inside the node
+     * instead of previous content.
+     * 
+     * @param node
+     * @param content
+     */
+    public void setInnerHtml(final TagNode node, final String content) {
+        if (node != null) {
+            final String nodeName = node.getName();
+            final StringBuilder html = new StringBuilder();
+            html.append("<" + nodeName + " marker=''>");
+            html.append(content);
+            html.append("</" + nodeName + ">");
+            TagNode parent = node.getParent();
+            while (parent != null) {
+                final String parentName = parent.getName();
+                html.insert(0, "<" + parentName + ">");
+                html.append("</" + parentName + ">");
+                parent = parent.getParent();
+            }
+
+            final TagNode rootNode = clean(html.toString());
+            final TagNode cleanedNode = rootNode.findElementHavingAttribute("marker", true);
+            if (cleanedNode != null) {
+                node.setChildren(cleanedNode.getChildren());
+            }
+        }
+    }
+
+    private void setPruneTags(final String pruneTags, final CleanTimeValues cleanTimeValues) {
+        cleanTimeValues.pruneTagSet.clear();
+        cleanTimeValues.pruneNodeSet.clear();
+        if (pruneTags != null) {
+            final StringTokenizer tokenizer = new StringTokenizer(pruneTags, ",");
+            while (tokenizer.hasMoreTokens()) {
+                cleanTimeValues.pruneTagSet.add(tokenizer.nextToken().trim().toLowerCase());
+            }
+        }
+    }
+
+    /**
+     * Sets tranformations for this cleaner instance.
+     * 
+     * @param transformations
+     */
+    public void setTransformations(final CleanerTransformations transformations) {
+        this.transformations = transformations;
+    }
+
+}
diff --git a/src/org/htmlcleaner/HtmlCleanerException.java b/src/org/htmlcleaner/HtmlCleanerException.java
new file mode 100644
index 0000000..2e1b099
--- /dev/null
+++ b/src/org/htmlcleaner/HtmlCleanerException.java
@@ -0,0 +1,79 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+/**
+ * <p>
+ * General HtmlCleaner runtime exception.
+ * </p>
+ */
+public class HtmlCleanerException extends RuntimeException {
+    private static final long serialVersionUID = 1L;
+
+    public HtmlCleanerException() {
+        this("HtmlCleaner expression occureed!");
+    }
+
+    public HtmlCleanerException(final String message) {
+        super(message);
+    }
+
+    public HtmlCleanerException(final String message, final Throwable cause) {
+        super(message, cause);
+    }
+
+    public HtmlCleanerException(final Throwable cause) {
+        super(cause);
+    }
+}
diff --git a/src/org/htmlcleaner/HtmlNode.java b/src/org/htmlcleaner/HtmlNode.java
new file mode 100644
index 0000000..6aca683
--- /dev/null
+++ b/src/org/htmlcleaner/HtmlNode.java
@@ -0,0 +1,23 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+package org.htmlcleaner;
+
+/**
+ * Marker interface denoting nodes of the document tree
+ */
+public interface HtmlNode {
+}
diff --git a/src/org/htmlcleaner/HtmlSerializer.java b/src/org/htmlcleaner/HtmlSerializer.java
new file mode 100644
index 0000000..3943628
--- /dev/null
+++ b/src/org/htmlcleaner/HtmlSerializer.java
@@ -0,0 +1,236 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.util.Map;
+
+/**
+ * <p>
+ * Abstract HTML serializer - contains common logic for descendants.
+ * </p>
+ */
+public abstract class HtmlSerializer extends Serializer {
+    protected HtmlSerializer(final CleanerProperties props) {
+        super(props);
+    }
+
+    protected boolean isMinimizedTagSyntax(final TagNode tagNode) {
+        final TagInfo tagInfo = props.getTagInfoProvider().getTagInfo(tagNode.getName());
+        return tagInfo != null && !tagNode.hasChildren() && tagInfo.isEmptyTag();
+    }
+
+    protected boolean dontEscape(TagNode tagNode) {
+        return isScriptOrStyle(tagNode);
+    }
+
+    protected String escapeText(String s) {
+        boolean recognizeUnicodeChars = props.isRecognizeUnicodeChars();
+        boolean translateSpecialEntities = props.isTranslateSpecialEntities();
+
+        if (s != null) {
+            int len = s.length();
+            StringBuilder result = new StringBuilder(len);
+
+            for (int i = 0; i < len; i++) {
+                char ch = s.charAt(i);
+
+                if (ch == '&') {
+                    if (i < len - 2 && s.charAt(i + 1) == '#') {
+                        boolean isHex = Character.toLowerCase(s.charAt(i + 2)) == 'x';
+                        int charIndex = i + (isHex ? 3 : 2);
+                        int radix = isHex ? 16 : 10;
+                        String unicode = "";
+                        while (charIndex < len) {
+                            char currCh = s.charAt(charIndex);
+                            if (currCh == ';') {
+                                break;
+                            } else if (Utils.isValidInt(unicode + currCh, radix)) {
+                                unicode += currCh;
+                                charIndex++;
+                            } else {
+                                charIndex--;
+                                break;
+                            }
+                        }
+
+                        if (Utils.isValidInt(unicode, radix)) {
+                            char unicodeChar = (char) Integer.parseInt(unicode, radix);
+                            if (!Utils.isValidXmlChar(unicodeChar)) {
+                                i = charIndex;
+                            } else if (!Utils.isReservedXmlChar(unicodeChar)) {
+                                result.append(recognizeUnicodeChars ? String.valueOf(unicodeChar) : "&#" + unicode
+                                        + ";");
+                                i = charIndex;
+                            } else {
+                                i = charIndex;
+                                result.append("&#" + unicode + ";");
+                            }
+                        } else {
+                            result.append(props.isTransResCharsToNCR() ? "&#" + (int) '&' + ";" : "&");
+                        }
+                    } else {
+                        // get minimal following sequence required to recognize
+                        // some special entitiy
+                        String seq = s.substring(i, i + Math.min(SpecialEntity.getMaxEntityLength() + 2, len - i));
+                        int semiIndex = seq.indexOf(';');
+                        if (semiIndex > 0) {
+                            String entityKey = seq.substring(1, semiIndex);
+                            SpecialEntity entity = SpecialEntity.getEntity(entityKey);
+                            if (entity != null) {
+                                if (translateSpecialEntities) {
+                                    result.append(props.isTransSpecialEntitiesToNCR() ? entity.getDecimalNCR() : entity
+                                            .getCharacter());
+                                } else {
+                                    result.append(entity.getEscapedValue());
+                                }
+
+                                i += entityKey.length() + 1;
+                                continue;
+                            }
+                        }
+
+                        String sub = s.substring(i);
+                        boolean isReservedSeq = false;
+                        for (Map.Entry<Character, String> entry : Utils.RESERVED_XML_CHARS.entrySet()) {
+                            seq = entry.getValue();
+                            if (sub.startsWith(seq)) {
+                                result.append(props.isTransResCharsToNCR() ? "&#" + (int) entry.getKey() + ";" : seq);
+                                i += seq.length() - 1;
+                                isReservedSeq = true;
+                                break;
+                            }
+                        }
+                        if (!isReservedSeq) {
+                            result.append(props.isTransResCharsToNCR() ? "&#" + (int) '&' + ";" : "&");
+                        }
+                    }
+                } else if (Utils.isReservedXmlChar(ch)) {
+                    result.append(props.isTransResCharsToNCR() ? "&#" + (int) ch + ";" : ch);
+                } else {
+                    result.append(ch);
+                }
+            }
+
+            return result.toString();
+        }
+
+        return null;
+    }
+
+    protected void serializeOpenTag(TagNode tagNode, Writer writer, boolean newLine) throws IOException {
+        String tagName = tagNode.getName();
+
+        if (Utils.isEmptyString(tagName)) {
+            return;
+        }
+
+        boolean nsAware = props.isNamespacesAware();
+
+        if (!nsAware && Utils.getXmlNSPrefix(tagName) != null) {
+            tagName = Utils.getXmlName(tagName);
+        }
+
+        writer.write("<" + tagName);
+        for (Map.Entry<String, String> entry : tagNode.getAttributes().entrySet()) {
+            String attName = entry.getKey();
+            if (!nsAware && Utils.getXmlNSPrefix(attName) != null) {
+                attName = Utils.getXmlName(attName);
+            }
+            writer.write(" " + attName + "=\"" + escapeText(entry.getValue()) + "\"");
+        }
+
+        if (nsAware) {
+            Map<String, String> nsDeclarations = tagNode.getNamespaceDeclarations();
+            if (nsDeclarations != null) {
+                for (Map.Entry<String, String> entry : nsDeclarations.entrySet()) {
+                    String prefix = entry.getKey();
+                    String att = "xmlns";
+                    if (prefix.length() > 0) {
+                        att += ":" + prefix;
+                    }
+                    writer.write(" " + att + "=\"" + escapeText(entry.getValue()) + "\"");
+                }
+            }
+        }
+
+        if (isMinimizedTagSyntax(tagNode)) {
+            writer.write(" />");
+            if (newLine) {
+                writer.write("\n");
+            }
+        } else {
+            writer.write(">");
+        }
+    }
+
+    protected void serializeEndTag(TagNode tagNode, Writer writer, boolean newLine) throws IOException {
+        String tagName = tagNode.getName();
+
+        if (Utils.isEmptyString(tagName)) {
+            return;
+        }
+
+        if (Utils.getXmlNSPrefix(tagName) != null && !props.isNamespacesAware()) {
+            tagName = Utils.getXmlName(tagName);
+        }
+
+        writer.write("</" + tagName + ">");
+        if (newLine) {
+            writer.write("\n");
+        }
+    }
+
+}
diff --git a/src/org/htmlcleaner/HtmlTokenizer.java b/src/org/htmlcleaner/HtmlTokenizer.java
new file mode 100644
index 0000000..b2fd8f1
--- /dev/null
+++ b/src/org/htmlcleaner/HtmlTokenizer.java
@@ -0,0 +1,836 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * Main HTML tokenizer.
+ * <p>
+ * It's task is to parse HTML and produce list of valid tokens: open tag tokens,
+ * end tag tokens, contents (text) and comments. As soon as new item is added to
+ * token list, cleaner is invoked to clean current list at the end.
+ * </p>
+ */
+abstract public class HtmlTokenizer {
+    private final static int WORKING_BUFFER_SIZE = 1024;
+
+    private BufferedReader reader;
+    private char[] working = new char[WORKING_BUFFER_SIZE];
+    private transient int pos = 0;
+    private transient int len = -1;
+    private transient char saved[] = new char[512];
+    private transient int savedLen = 0;
+    private transient DoctypeToken docType = null;
+    private transient TagToken currentTagToken = null;
+    private transient List<BaseToken> tokenList = new ArrayList<BaseToken>();
+    private boolean asExpected = true;
+    private boolean isScriptContext = false;
+    private CleanerProperties props;
+    private boolean isOmitUnknownTags;
+    private boolean isTreatUnknownTagsAsContent;
+    private boolean isOmitDeprecatedTags;
+    private boolean isTreatDeprecatedTagsAsContent;
+    private boolean isNamespacesAware;
+    private boolean isOmitComments;
+    private boolean isAllowMultiWordAttributes;
+    private boolean isAllowHtmlInsideAttributes;
+    private CleanerTransformations transformations;
+    private ITagInfoProvider tagInfoProvider;
+    private StringBuilder commonStr = new StringBuilder();
+
+    /**
+     * Constructor - cretes instance of the parser with specified content.
+     * 
+     * @param reader
+     * @param props
+     * @param transformations
+     * @param tagInfoProvider
+     * 
+     * @throws IOException
+     */
+    public HtmlTokenizer(final Reader reader, final CleanerProperties props,
+            final CleanerTransformations transformations, final ITagInfoProvider tagInfoProvider) throws IOException {
+        this.reader = new BufferedReader(reader);
+        this.props = props;
+        this.isOmitUnknownTags = props.isOmitUnknownTags();
+        this.isTreatUnknownTagsAsContent = props.isTreatUnknownTagsAsContent();
+        this.isOmitDeprecatedTags = props.isOmitDeprecatedTags();
+        this.isTreatDeprecatedTagsAsContent = props.isTreatDeprecatedTagsAsContent();
+        this.isNamespacesAware = props.isNamespacesAware();
+        this.isOmitComments = props.isOmitComments();
+        this.isAllowMultiWordAttributes = props.isAllowMultiWordAttributes();
+        this.isAllowHtmlInsideAttributes = props.isAllowHtmlInsideAttributes();
+        this.transformations = transformations;
+        this.tagInfoProvider = tagInfoProvider;
+    }
+
+    private boolean addSavedAsContent() {
+        if (savedLen > 0) {
+            addToken(new ContentNode(saved, savedLen));
+            savedLen = 0;
+            return true;
+        }
+
+        return false;
+    }
+
+    private void addToken(final BaseToken token) {
+        tokenList.add(token);
+        makeTree(tokenList);
+    }
+
+    /**
+     * Parses a single tag attribute - it is expected to be in one of the forms:
+     * name=value name="value" name='value' name
+     * 
+     * @throws IOException
+     */
+    private String attributeValue() throws IOException {
+        skipWhitespaces();
+
+        if (isCharSimple('<') || isCharSimple('>') || startsWithSimple("/>")) {
+            return "";
+        }
+
+        boolean isQuoteMode = false;
+        boolean isAposMode = false;
+
+        commonStr.delete(0, commonStr.length());
+        if (isCharSimple('\'')) {
+            isAposMode = true;
+            saveCurrentSafe();
+            go();
+        } else if (isCharSimple('\"')) {
+            isQuoteMode = true;
+            saveCurrentSafe();
+            go();
+        }
+
+        while (!isAllRead()
+                && (((isAposMode && !isCharEquals('\'') || isQuoteMode && !isCharEquals('\"'))
+                        && (isAllowHtmlInsideAttributes || !isCharEquals('>') && !isCharEquals('<')) && (isAllowMultiWordAttributes || !isWhitespaceSafe())) || (!isAposMode
+                        && !isQuoteMode && !isWhitespaceSafe() && !isCharEquals('>') && !isCharEquals('<')))) {
+            if (isValidXmlCharSafe()) {
+                commonStr.append(working[pos]);
+                saveCurrentSafe();
+            }
+            go();
+        }
+
+        if (isCharSimple('\'') && isAposMode) {
+            saveCurrentSafe();
+            go();
+        } else if (isCharSimple('\"') && isQuoteMode) {
+            saveCurrentSafe();
+            go();
+        }
+
+        return commonStr.toString();
+    }
+
+    private void comment() throws IOException {
+        go(4);
+        while (!isAllRead() && !startsWithSimple("-->")) {
+            if (isValidXmlCharSafe()) {
+                saveCurrentSafe();
+            }
+            go();
+        }
+
+        if (startsWithSimple("-->")) {
+            go(3);
+        }
+
+        if (savedLen > 0) {
+            if (!isOmitComments) {
+                final String hyphenRepl = props.getHyphenReplacementInComment();
+                String comment = new String(saved, 0, savedLen).replaceAll("--", hyphenRepl + hyphenRepl);
+
+                if (comment.length() > 0 && comment.charAt(0) == '-') {
+                    comment = hyphenRepl + comment.substring(1);
+                }
+                final int len = comment.length();
+                if (len > 0 && comment.charAt(len - 1) == '-') {
+                    comment = comment.substring(0, len - 1) + hyphenRepl;
+                }
+
+                addToken(new CommentNode(comment));
+            }
+            savedLen = 0;
+        }
+    }
+
+    private boolean content() throws IOException {
+        while (!isAllRead()) {
+            if (isValidXmlCharSafe()) {
+                saveCurrentSafe();
+            }
+            go();
+
+            if (isCharSimple('<')) {
+                break;
+            }
+        }
+
+        return addSavedAsContent();
+    }
+
+    public abstract TagNode createTagNode(String name);
+
+    private void doctype() throws IOException {
+        go(9);
+
+        skipWhitespaces();
+        final String part1 = identifier();
+        skipWhitespaces();
+        final String part2 = identifier();
+        skipWhitespaces();
+        final String part3 = attributeValue();
+        skipWhitespaces();
+        final String part4 = attributeValue();
+
+        ignoreUntil('<');
+
+        docType = new DoctypeToken(part1, part2, part3, part4);
+    }
+
+    /**
+     * @return Current character to be read, but first it must be checked if it
+     *         exists. This method is made for performance reasons to be used
+     *         instead of isChar(...).
+     */
+    @SuppressWarnings("unused")
+    private char getCurrentChar() {
+        return working[pos];
+    }
+
+    public DoctypeToken getDocType() {
+        return docType;
+    }
+
+    public List<BaseToken> getTokenList() {
+        return this.tokenList;
+    }
+
+    private void go() throws IOException {
+        pos++;
+        readIfNeeded(0);
+    }
+
+    private void go(final int step) throws IOException {
+        pos += step;
+        readIfNeeded(step - 1);
+    }
+
+    /**
+     * Parses an identifier from the current position.
+     * 
+     * @throws IOException
+     */
+    private String identifier() throws IOException {
+        asExpected = true;
+
+        if (!isIdentifierStartChar()) {
+            asExpected = false;
+            return null;
+        }
+
+        commonStr.delete(0, commonStr.length());
+
+        while (!isAllRead() && isIdentifierChar()) {
+            saveCurrentSafe();
+            commonStr.append(working[pos]);
+            go();
+        }
+
+        // strip invalid characters from the end
+        while (commonStr.length() > 0 && Utils.isIdentifierHelperChar(commonStr.charAt(commonStr.length() - 1))) {
+            commonStr.deleteCharAt(commonStr.length() - 1);
+        }
+
+        if (commonStr.length() == 0) {
+            return null;
+        }
+
+        String id = commonStr.toString();
+
+        final int columnIndex = id.indexOf(':');
+        if (columnIndex >= 0) {
+            final String prefix = id.substring(0, columnIndex);
+            String suffix = id.substring(columnIndex + 1);
+            final int nextColumnIndex = suffix.indexOf(':');
+            if (nextColumnIndex >= 0) {
+                suffix = suffix.substring(0, nextColumnIndex);
+            }
+            id = isNamespacesAware ? (prefix + ":" + suffix) : suffix;
+        }
+
+        return id;
+    }
+
+    private void ignoreUntil(final char ch) throws IOException {
+        while (!isAllRead()) {
+            go();
+            if (isChar(ch)) {
+                break;
+            }
+        }
+    }
+
+    /**
+     * Checks if end of the content is reached.
+     */
+    private boolean isAllRead() {
+        return len >= 0 && pos >= len;
+    }
+
+    /**
+     * Checks if character at current runtime position is equal to specified
+     * char.
+     * 
+     * @param ch
+     * @return true is equal, false otherwise.
+     */
+    private boolean isChar(final char ch) {
+        return isChar(pos, ch);
+    }
+
+    /**
+     * Checks if character at specified position is equal to specified char.
+     * 
+     * @param position
+     * @param ch
+     * @return true is equals, false otherwise.
+     */
+    private boolean isChar(final int position, final char ch) {
+        if (len >= 0 && position >= len) {
+            return false;
+        }
+
+        return Character.toLowerCase(ch) == Character.toLowerCase(working[position]);
+    }
+
+    private boolean isCharEquals(final char ch) {
+        return working[pos] == ch;
+    }
+
+    private boolean isCharSimple(final char ch) {
+        return (len < 0 || pos < len) && (ch == working[pos]);
+    }
+
+    /**
+     * Checks if character at current runtime position can be identifier part.
+     * 
+     * @return true is may be identifier part, false otherwise.
+     */
+    private boolean isIdentifierChar() {
+        if (len >= 0 && pos >= len) {
+            return false;
+        }
+
+        final char ch = working[pos];
+        return Character.isUnicodeIdentifierStart(ch) || Character.isDigit(ch) || Utils.isIdentifierHelperChar(ch);
+    }
+
+    /**
+     * Checks if character at current runtime position can be identifier start.
+     * 
+     * @return true is may be identifier start, false otherwise.
+     */
+    private boolean isIdentifierStartChar() {
+        return isIdentifierStartChar(pos);
+    }
+
+    /**
+     * Checks if character at specified position can be identifier start.
+     * 
+     * @param position
+     * @return true is may be identifier start, false otherwise.
+     */
+    private boolean isIdentifierStartChar(final int position) {
+        if (len >= 0 && position >= len) {
+            return false;
+        }
+
+        final char ch = working[position];
+        return Character.isUnicodeIdentifierStart(ch) || ch == '_';
+    }
+
+    /**
+     * Checks if specified tag name is one of the reserved tags: HTML, HEAD or
+     * BODY
+     * 
+     * @param tagName
+     * @return
+     */
+    private boolean isReservedTag(String tagName) {
+        tagName = tagName.toLowerCase();
+        return "html".equals(tagName) || "head".equals(tagName) || "body".equals(tagName);
+    }
+
+    private boolean isValidXmlChar() {
+        return isAllRead() || Utils.isValidXmlChar(working[pos]);
+    }
+
+    private boolean isValidXmlCharSafe() {
+        return Utils.isValidXmlChar(working[pos]);
+    }
+
+    /**
+     * Checks if character at current runtime position is whitespace.
+     * 
+     * @return true is whitespace, false otherwise.
+     */
+    @SuppressWarnings("unused")
+    private boolean isWhitespace() {
+        return isWhitespace(pos);
+    }
+
+    /**
+     * Checks if character at specified position is whitespace.
+     * 
+     * @param position
+     * @return true is whitespace, false otherwise.
+     */
+    private boolean isWhitespace(final int position) {
+        if (len >= 0 && position >= len) {
+            return false;
+        }
+
+        return Character.isWhitespace(working[position]);
+    }
+
+    private boolean isWhitespaceSafe() {
+        return Character.isWhitespace(working[pos]);
+    }
+
+    public abstract void makeTree(List<BaseToken> tokenList);
+
+    private void readIfNeeded(final int neededChars) throws IOException {
+        if (len == -1 && pos + neededChars >= WORKING_BUFFER_SIZE) {
+            final int numToCopy = WORKING_BUFFER_SIZE - pos;
+            System.arraycopy(working, pos, working, 0, numToCopy);
+            pos = 0;
+
+            int expected = WORKING_BUFFER_SIZE - numToCopy;
+            int size = 0;
+            int charsRead;
+            int offset = numToCopy;
+            do {
+                charsRead = reader.read(working, offset, expected);
+                if (charsRead >= 0) {
+                    size += charsRead;
+                    offset += charsRead;
+                    expected -= charsRead;
+                }
+            } while (charsRead >= 0 && expected > 0);
+
+            if (expected > 0) {
+                len = size + numToCopy;
+            }
+
+            // convert invalid XML characters to spaces
+            for (int i = 0; i < (len >= 0 ? len : WORKING_BUFFER_SIZE); i++) {
+                final int ch = working[i];
+                if (ch >= 1 && ch <= 32 && ch != 10 && ch != 13) {
+                    working[i] = ' ';
+                }
+            }
+        }
+    }
+
+    /**
+     * Saves specified character to the temporary buffer.
+     * 
+     * @param ch
+     */
+    private void save(final char ch) {
+        if (savedLen >= saved.length) {
+            final char newSaved[] = new char[saved.length + 512];
+            System.arraycopy(saved, 0, newSaved, 0, saved.length);
+            saved = newSaved;
+        }
+        saved[savedLen++] = ch;
+    }
+
+    /**
+     * Saves character at current runtime position to the temporary buffer.
+     */
+    private void saveCurrent() {
+        if (!isAllRead()) {
+            save(working[pos]);
+        }
+    }
+
+    /**
+     * Saves specified number of characters at current runtime position to the
+     * temporary buffer.
+     * 
+     * @throws IOException
+     */
+    private void saveCurrent(int size) throws IOException {
+        readIfNeeded(size);
+        int pos = this.pos;
+        while (!isAllRead() && (size > 0)) {
+            save(working[pos]);
+            pos++;
+            size--;
+        }
+    }
+
+    private void saveCurrentSafe() {
+        save(working[pos]);
+    }
+
+    /**
+     * Skips whitespaces at current position and moves foreward until
+     * non-whitespace character is found or the end of content is reached.
+     * 
+     * @throws IOException
+     */
+    private void skipWhitespaces() throws IOException {
+        while (!isAllRead() && isWhitespaceSafe()) {
+            saveCurrentSafe();
+            go();
+        }
+    }
+
+    /**
+     * Starts parsing HTML.
+     * 
+     * @throws IOException
+     */
+    public void start() throws IOException {
+        // initialize runtime values
+        currentTagToken = null;
+        tokenList.clear();
+        asExpected = true;
+        isScriptContext = false;
+
+        boolean isLateForDoctype = false;
+
+        this.pos = WORKING_BUFFER_SIZE;
+        readIfNeeded(0);
+
+        boolean isScriptEmpty = true;
+
+        while (!isAllRead()) {
+            // resets all the runtime values
+            savedLen = 0;
+            currentTagToken = null;
+            asExpected = true;
+
+            // this is enough for making decision
+            readIfNeeded(10);
+
+            if (isScriptContext) {
+                if (startsWith("</script") && (isWhitespace(pos + 8) || isChar(pos + 8, '>'))) {
+                    tagEnd();
+                } else if (isScriptEmpty && startsWithSimple("<!--")) {
+                    comment();
+                } else {
+                    final boolean isTokenAdded = content();
+                    if (isScriptEmpty && isTokenAdded) {
+                        final BaseToken lastToken = tokenList.get(tokenList.size() - 1);
+                        if (lastToken != null) {
+                            final String lastTokenAsString = lastToken.toString();
+                            if (lastTokenAsString != null && lastTokenAsString.trim().length() > 0) {
+                                isScriptEmpty = false;
+                            }
+                        }
+                    }
+                }
+                if (!isScriptContext) {
+                    isScriptEmpty = true;
+                }
+            } else {
+                if (startsWith("<!doctype")) {
+                    if (!isLateForDoctype) {
+                        doctype();
+                        isLateForDoctype = true;
+                    } else {
+                        ignoreUntil('<');
+                    }
+                } else if (startsWithSimple("</") && isIdentifierStartChar(pos + 2)) {
+                    isLateForDoctype = true;
+                    tagEnd();
+                } else if (startsWithSimple("<!--")) {
+                    comment();
+                } else if (startsWithSimple("<") && isIdentifierStartChar(pos + 1)) {
+                    isLateForDoctype = true;
+                    tagStart();
+                } else if (props.isIgnoreQuestAndExclam() && (startsWithSimple("<!") || startsWithSimple("<?"))) {
+                    ignoreUntil('>');
+                    if (isCharSimple('>')) {
+                        go();
+                    }
+                } else {
+                    content();
+                }
+            }
+        }
+
+        reader.close();
+    }
+
+    /**
+     * Checks if content starts with specified value at the current position.
+     * 
+     * @param value
+     * @return true if starts with specified value, false otherwise.
+     * @throws IOException
+     */
+    private boolean startsWith(final String value) throws IOException {
+        final int valueLen = value.length();
+        readIfNeeded(valueLen);
+        if (len >= 0 && pos + valueLen > len) {
+            return false;
+        }
+
+        for (int i = 0; i < valueLen; i++) {
+            final char ch1 = Character.toLowerCase(value.charAt(i));
+            final char ch2 = Character.toLowerCase(working[pos + i]);
+            if (ch1 != ch2) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    private boolean startsWithSimple(final String value) throws IOException {
+        final int valueLen = value.length();
+        readIfNeeded(valueLen);
+        if (len >= 0 && pos + valueLen > len) {
+            return false;
+        }
+
+        for (int i = 0; i < valueLen; i++) {
+            if (value.charAt(i) != working[pos + i]) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Parses list tag attributes from the current position.
+     * 
+     * @throws IOException
+     */
+    private void tagAttributes() throws IOException {
+        while (!isAllRead() && asExpected && !isCharSimple('>') && !startsWithSimple("/>")) {
+            skipWhitespaces();
+            final String attName = identifier();
+
+            if (!asExpected) {
+                if (!isCharSimple('<') && !isCharSimple('>') && !startsWithSimple("/>")) {
+                    if (isValidXmlChar()) {
+                        saveCurrent();
+                    }
+                    go();
+                }
+
+                if (!isCharSimple('<')) {
+                    asExpected = true;
+                }
+
+                continue;
+            }
+
+            String attValue;
+
+            skipWhitespaces();
+            if (isCharSimple('=')) {
+                saveCurrentSafe();
+                go();
+                attValue = attributeValue();
+            } else if (CleanerProperties.BOOL_ATT_EMPTY.equals(props.getBooleanAttributeValues())) {
+                attValue = "";
+            } else if (CleanerProperties.BOOL_ATT_TRUE.equals(props.getBooleanAttributeValues())) {
+                attValue = "true";
+            } else {
+                attValue = attName;
+            }
+
+            if (asExpected) {
+                currentTagToken.setAttribute(attName, attValue);
+            }
+        }
+    }
+
+/**
+         * Parses end of the tag.
+         * It expects that current position is at the "<" after which
+         * "/" and the tag's name follows.
+         * @throws IOException
+         */
+    private void tagEnd() throws IOException {
+        saveCurrent(2);
+        go(2);
+
+        if (isAllRead()) {
+            return;
+        }
+
+        String tagName = identifier();
+        if (transformations != null && transformations.hasTransformationForTag(tagName)) {
+            final TagTransformation tagTransformation = transformations.getTransformation(tagName);
+            if (tagTransformation != null) {
+                tagName = tagTransformation.getDestTag();
+            }
+        }
+
+        if (tagName != null) {
+            final TagInfo tagInfo = tagInfoProvider.getTagInfo(tagName);
+            if ((tagInfo == null && !isOmitUnknownTags && isTreatUnknownTagsAsContent && !isReservedTag(tagName))
+                    || (tagInfo != null && tagInfo.isDeprecated() && !isOmitDeprecatedTags && isTreatDeprecatedTagsAsContent)) {
+                content();
+                return;
+            }
+        }
+
+        currentTagToken = new EndTagToken(tagName);
+
+        if (asExpected) {
+            skipWhitespaces();
+            tagAttributes();
+
+            if (tagName != null) {
+                addToken(currentTagToken);
+            }
+
+            if (isCharSimple('>')) {
+                go();
+            }
+
+            if ("script".equalsIgnoreCase(tagName)) {
+                isScriptContext = false;
+            }
+
+            currentTagToken = null;
+        } else {
+            addSavedAsContent();
+        }
+    }
+
+/**
+         * Parses start of the tag.
+         * It expects that current position is at the "<" after which
+         * the tag's name follows.
+         * @throws IOException
+         */
+    private void tagStart() throws IOException {
+        saveCurrent();
+        go();
+
+        if (isAllRead()) {
+            return;
+        }
+
+        String tagName = identifier();
+
+        TagTransformation tagTransformation = null;
+        if (transformations != null && transformations.hasTransformationForTag(tagName)) {
+            tagTransformation = transformations.getTransformation(tagName);
+            if (tagTransformation != null) {
+                tagName = tagTransformation.getDestTag();
+            }
+        }
+
+        if (tagName != null) {
+            final TagInfo tagInfo = tagInfoProvider.getTagInfo(tagName);
+            if ((tagInfo == null && !isOmitUnknownTags && isTreatUnknownTagsAsContent && !isReservedTag(tagName))
+                    || (tagInfo != null && tagInfo.isDeprecated() && !isOmitDeprecatedTags && isTreatDeprecatedTagsAsContent)) {
+                content();
+                return;
+            }
+        }
+
+        final TagNode tagNode = createTagNode(tagName);
+        currentTagToken = tagNode;
+
+        if (asExpected) {
+            skipWhitespaces();
+            tagAttributes();
+
+            if (tagName != null) {
+                if (tagTransformation != null) {
+                    tagNode.transformAttributes(tagTransformation);
+                }
+                addToken(currentTagToken);
+            }
+
+            if (isCharSimple('>')) {
+                go();
+                if ("script".equalsIgnoreCase(tagName)) {
+                    isScriptContext = true;
+                }
+            } else if (startsWithSimple("/>")) {
+                go(2);
+                if ("script".equalsIgnoreCase(tagName)) {
+                    addToken(new EndTagToken(tagName));
+                }
+            }
+
+            currentTagToken = null;
+        } else {
+            addSavedAsContent();
+        }
+    }
+
+}
diff --git a/src/org/htmlcleaner/ITagInfoProvider.java b/src/org/htmlcleaner/ITagInfoProvider.java
new file mode 100644
index 0000000..2a64664
--- /dev/null
+++ b/src/org/htmlcleaner/ITagInfoProvider.java
@@ -0,0 +1,66 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+/**
+ * <p>
+ * Provides set of TagInfo instances. The instance of this interface is used as
+ * a collection of tag definitions used in cleanup process. Implementing this
+ * interface desired behaviour of cleaner can be achived.<br/>
+ * In most cases implementation will be or contain a kind of Map.
+ * </p>
+ */
+public interface ITagInfoProvider {
+    TagInfo getTagInfo(String tagName);
+}
diff --git a/src/org/htmlcleaner/PrettyHtmlSerializer.java b/src/org/htmlcleaner/PrettyHtmlSerializer.java
new file mode 100644
index 0000000..c41982a
--- /dev/null
+++ b/src/org/htmlcleaner/PrettyHtmlSerializer.java
@@ -0,0 +1,233 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * <p>
+ * Pretty HTML serializer - creates resulting HTML with indenting lines.
+ * </p>
+ */
+public class PrettyHtmlSerializer extends HtmlSerializer {
+    private static final String DEFAULT_INDENTATION_STRING = "\t";
+
+    private String indentString = DEFAULT_INDENTATION_STRING;
+    final private List<String> indents = new ArrayList<String>();
+
+    public PrettyHtmlSerializer(final CleanerProperties props) {
+        this(props, DEFAULT_INDENTATION_STRING);
+    }
+
+    public PrettyHtmlSerializer(final CleanerProperties props, final String indentString) {
+        super(props);
+        this.indentString = indentString;
+    }
+
+    protected void serialize(final TagNode tagNode, final Writer writer) throws IOException {
+        serializePrettyHtml(tagNode, writer, 0, false, true);
+    }
+
+    /**
+     * @param level
+     * @return Appropriate indentation for the specified depth.
+     */
+    private synchronized String getIndent(final int level) {
+        final int size = indents.size();
+        if (size <= level) {
+            String prevIndent = size == 0 ? null : indents.get(size - 1);
+            for (int i = size; i <= level; i++) {
+                final String currIndent = prevIndent == null ? "" : prevIndent + indentString;
+                indents.add(currIndent);
+                prevIndent = currIndent;
+            }
+        }
+
+        return indents.get(level);
+    }
+
+    private String getIndentedText(final String content, final int level) {
+        final String indent = getIndent(level);
+        final StringBuilder result = new StringBuilder(content.length());
+        final StringTokenizer tokenizer = new StringTokenizer(content, "\n\r");
+
+        while (tokenizer.hasMoreTokens()) {
+            final String line = tokenizer.nextToken().trim();
+            if (!"".equals(line)) {
+                result.append(indent).append(line).append("\n");
+            }
+        }
+
+        return result.toString();
+    }
+
+    private String getSingleLineOfChildren(final List children) {
+        final StringBuilder result = new StringBuilder();
+        final Iterator childrenIt = children.iterator();
+        boolean isFirst = true;
+
+        while (childrenIt.hasNext()) {
+            final Object child = childrenIt.next();
+
+            if (!(child instanceof ContentNode)) {
+                return null;
+            } else {
+                String content = child.toString();
+
+                // if first item trims it from left
+                if (isFirst) {
+                    content = Utils.ltrim(content);
+                }
+
+                // if last item trims it from right
+                if (!childrenIt.hasNext()) {
+                    content = Utils.rtrim(content);
+                }
+
+                if (content.indexOf('\n') >= 0 || content.indexOf('\r') >= 0) {
+                    return null;
+                }
+                result.append(content);
+            }
+
+            isFirst = false;
+        }
+
+        return result.toString();
+    }
+
+    protected void serializePrettyHtml(final TagNode tagNode, final Writer writer, final int level,
+            final boolean isPreserveWhitespaces, final boolean isLastNewLine) throws IOException {
+        final List tagChildren = tagNode.getChildren();
+        final String tagName = tagNode.getName();
+        final boolean isHeadlessNode = Utils.isEmptyString(tagName);
+        final String indent = isHeadlessNode ? "" : getIndent(level);
+
+        if (!isPreserveWhitespaces) {
+            if (!isLastNewLine) {
+                writer.write("\n");
+            }
+            writer.write(indent);
+        }
+        serializeOpenTag(tagNode, writer, true);
+
+        final boolean preserveWhitespaces = isPreserveWhitespaces || "pre".equalsIgnoreCase(tagName);
+
+        boolean lastWasNewLine = false;
+
+        if (!isMinimizedTagSyntax(tagNode)) {
+            final String singleLine = getSingleLineOfChildren(tagChildren);
+            final boolean dontEscape = dontEscape(tagNode);
+            if (!preserveWhitespaces && singleLine != null) {
+                writer.write(!dontEscape(tagNode) ? escapeText(singleLine) : singleLine);
+            } else {
+                final Iterator childIterator = tagChildren.iterator();
+                while (childIterator.hasNext()) {
+                    final Object child = childIterator.next();
+                    if (child instanceof TagNode) {
+                        serializePrettyHtml((TagNode) child, writer, isHeadlessNode ? level : level + 1,
+                                preserveWhitespaces, lastWasNewLine);
+                        lastWasNewLine = false;
+                    } else if (child instanceof ContentNode) {
+                        final String content = dontEscape ? child.toString() : escapeText(child.toString());
+                        if (content.length() > 0) {
+                            if (dontEscape || preserveWhitespaces) {
+                                writer.write(content);
+                            } else if (Character.isWhitespace(content.charAt(0))) {
+                                if (!lastWasNewLine) {
+                                    writer.write("\n");
+                                    lastWasNewLine = false;
+                                }
+                                if (content.trim().length() > 0) {
+                                    writer.write(getIndentedText(Utils.rtrim(content), isHeadlessNode ? level
+                                            : level + 1));
+                                } else {
+                                    lastWasNewLine = true;
+                                }
+                            } else {
+                                if (content.trim().length() > 0) {
+                                    writer.write(Utils.rtrim(content));
+                                }
+                                if (!childIterator.hasNext()) {
+                                    writer.write("\n");
+                                    lastWasNewLine = true;
+                                }
+                            }
+                        }
+                    } else if (child instanceof CommentNode) {
+                        if (!lastWasNewLine && !preserveWhitespaces) {
+                            writer.write("\n");
+                            lastWasNewLine = false;
+                        }
+                        final CommentNode commentNode = (CommentNode) child;
+                        final String content = commentNode.getCommentedContent();
+                        writer.write(dontEscape ? content
+                                : getIndentedText(content, isHeadlessNode ? level : level + 1));
+                    }
+                }
+            }
+
+            if (singleLine == null && !preserveWhitespaces) {
+                if (!lastWasNewLine) {
+                    writer.write("\n");
+                }
+                writer.write(indent);
+            }
+
+            serializeEndTag(tagNode, writer, false);
+        }
+    }
+
+}
diff --git a/src/org/htmlcleaner/Serializer.java b/src/org/htmlcleaner/Serializer.java
new file mode 100644
index 0000000..f508a42
--- /dev/null
+++ b/src/org/htmlcleaner/Serializer.java
@@ -0,0 +1,338 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * <p>
+ * Basic abstract serializer - contains common logic for descendants (methods
+ * <code>writeXXX()</code>.
+ * </p>
+ */
+public abstract class Serializer {
+
+    /**
+     * Used to implement serialization with missing envelope - omiting open and
+     * close tags, just serialize children.
+     */
+    private class HeadlessTagNode extends TagNode {
+        private HeadlessTagNode(final TagNode wrappedNode) {
+            super("");
+            getAttributes().putAll(wrappedNode.getAttributes());
+            getChildren().addAll(wrappedNode.getChildren());
+            setDocType(wrappedNode.getDocType());
+            final Map<String, String> nsDecls = getNamespaceDeclarations();
+            if (nsDecls != null) {
+                final Map<String, String> wrappedNSDecls = wrappedNode.getNamespaceDeclarations();
+                if (wrappedNSDecls != null) {
+                    nsDecls.putAll(wrappedNSDecls);
+                }
+            }
+
+        }
+    }
+
+    protected CleanerProperties props;
+
+    protected Serializer(final CleanerProperties props) {
+        this.props = props;
+    }
+
+    /**
+     * @param tagNode
+     *            Node to serialize to string
+     * @return Output as string
+     * @throws IOException
+     */
+    public String getAsString(final TagNode tagNode) throws IOException {
+        return getAsString(tagNode, false);
+    }
+
+    /**
+     * @param tagNode
+     *            Node to serialize to string
+     * @param omitEnvelope
+     *            Tells whether to skip open and close tag of the node.
+     * @return Output as string
+     * @throws IOException
+     */
+    public String getAsString(final TagNode tagNode, final boolean omitEnvelope) throws IOException {
+        return getAsString(tagNode, HtmlCleaner.DEFAULT_CHARSET, omitEnvelope);
+    }
+
+    /**
+     * @param tagNode
+     *            Node to serialize to string
+     * @param charset
+     *            Charset of the output - stands in xml declaration part
+     * @return Output as string
+     * @throws IOException
+     */
+    public String getAsString(final TagNode tagNode, final String charset) throws IOException {
+        return getAsString(tagNode, charset, false);
+    }
+
+    /**
+     * @param tagNode
+     *            Node to serialize to string
+     * @param charset
+     *            Charset of the output - stands in xml declaration part
+     * @param omitEnvelope
+     *            Tells whether to skip open and close tag of the node.
+     * @return Output as string
+     * @throws IOException
+     */
+    public String getAsString(final TagNode tagNode, final String charset, final boolean omitEnvelope)
+            throws IOException {
+        final StringWriter writer = new StringWriter();
+        write(tagNode, writer, charset, omitEnvelope);
+        return writer.getBuffer().toString();
+    }
+
+    protected boolean isScriptOrStyle(final TagNode tagNode) {
+        final String tagName = tagNode.getName();
+        return "script".equalsIgnoreCase(tagName) || "style".equalsIgnoreCase(tagName);
+    }
+
+    protected abstract void serialize(TagNode tagNode, Writer writer) throws IOException;
+
+    /**
+     * Writes specified node using specified writer.
+     * 
+     * @param tagNode
+     *            Node to serialize.
+     * @param writer
+     *            Writer instance
+     * @param charset
+     *            Charset of the output
+     * @throws IOException
+     */
+    public void write(final TagNode tagNode, final Writer writer, final String charset) throws IOException {
+        write(tagNode, writer, charset, false);
+    }
+
+    /**
+     * Writes specified node using specified writer.
+     * 
+     * @param tagNode
+     *            Node to serialize.
+     * @param writer
+     *            Writer instance
+     * @param charset
+     *            Charset of the output
+     * @param omitEnvelope
+     *            Tells whether to skip open and close tag of the node.
+     * @throws IOException
+     */
+    public void write(TagNode tagNode, Writer writer, final String charset, final boolean omitEnvelope)
+            throws IOException {
+        if (omitEnvelope) {
+            tagNode = new HeadlessTagNode(tagNode);
+        }
+        writer = new BufferedWriter(writer);
+        if (!props.isOmitXmlDeclaration()) {
+            String declaration = "<?xml version=\"1.0\"";
+            if (charset != null) {
+                declaration += " encoding=\"" + charset + "\"";
+            }
+            declaration += "?>";
+            writer.write(declaration + "\n");
+        }
+
+        if (!props.isOmitDoctypeDeclaration()) {
+            final DoctypeToken doctypeToken = tagNode.getDocType();
+            if (doctypeToken != null) {
+                doctypeToken.serialize(this, writer);
+            }
+        }
+
+        serialize(tagNode, writer);
+
+        writer.flush();
+        writer.close();
+    }
+
+    /**
+     * Writes specified TagNode to the file, using system default charset.
+     * 
+     * @param tagNode
+     *            Node to be written
+     * @param fileName
+     *            Output file name
+     * @throws IOException
+     */
+    public void writeToFile(final TagNode tagNode, final String fileName) throws IOException {
+        writeToFile(tagNode, fileName, false);
+    }
+
+    /**
+     * Writes specified TagNode to the file, using specified charset and
+     * optionally omits node envelope (skips open and close tags of the node).
+     * 
+     * @param tagNode
+     *            Node to be written
+     * @param fileName
+     *            Output file name
+     * @param omitEnvelope
+     *            Tells whether to skip open and close tag of the node.
+     * @throws IOException
+     */
+    public void writeToFile(final TagNode tagNode, final String fileName, final boolean omitEnvelope)
+            throws IOException {
+        writeToFile(tagNode, fileName, HtmlCleaner.DEFAULT_CHARSET, omitEnvelope);
+    }
+
+    /**
+     * Writes specified TagNode to the file, using specified charset.
+     * 
+     * @param tagNode
+     *            Node to be written
+     * @param fileName
+     *            Output file name
+     * @param charset
+     *            Charset of the output
+     * @throws IOException
+     */
+    public void writeToFile(final TagNode tagNode, final String fileName, final String charset) throws IOException {
+        writeToFile(tagNode, fileName, charset, false);
+    }
+
+    /**
+     * Writes specified TagNode to the file, using specified charset and
+     * optionally omits node envelope (skips open and close tags of the node).
+     * 
+     * @param tagNode
+     *            Node to be written
+     * @param fileName
+     *            Output file name
+     * @param charset
+     *            Charset of the output
+     * @param omitEnvelope
+     *            Tells whether to skip open and close tag of the node.
+     * @throws IOException
+     */
+    public void writeToFile(final TagNode tagNode, final String fileName, final String charset,
+            final boolean omitEnvelope) throws IOException {
+        writeToStream(tagNode, new FileOutputStream(fileName), charset, omitEnvelope);
+    }
+
+    /**
+     * Writes specified TagNode to the output stream, using system default
+     * charset.
+     * 
+     * @param tagNode
+     *            Node to be written
+     * @param out
+     *            Output stream
+     * @throws IOException
+     */
+    public void writeToStream(final TagNode tagNode, final OutputStream out) throws IOException {
+        writeToStream(tagNode, out, false);
+    }
+
+    /**
+     * Writes specified TagNode to the output stream, using system default
+     * charset and optionally omits node envelope (skips open and close tags of
+     * the node).
+     * 
+     * @param tagNode
+     *            Node to be written
+     * @param out
+     *            Output stream
+     * @param omitEnvelope
+     *            Tells whether to skip open and close tag of the node.
+     * @throws IOException
+     */
+    public void writeToStream(final TagNode tagNode, final OutputStream out, final boolean omitEnvelope)
+            throws IOException {
+        writeToStream(tagNode, out, HtmlCleaner.DEFAULT_CHARSET, omitEnvelope);
+    }
+
+    /**
+     * Writes specified TagNode to the output stream, using specified charset.
+     * 
+     * @param tagNode
+     *            Node to be written
+     * @param out
+     *            Output stream
+     * @param charset
+     *            Charset of the output
+     * @throws IOException
+     */
+    public void writeToStream(final TagNode tagNode, final OutputStream out, final String charset) throws IOException {
+        writeToStream(tagNode, out, charset, false);
+    }
+
+    /**
+     * Writes specified TagNode to the output stream, using specified charset
+     * and optionally omits node envelope (skips open and close tags of the
+     * node).
+     * 
+     * @param tagNode
+     *            Node to be written
+     * @param out
+     *            Output stream
+     * @param charset
+     *            Charset of the output
+     * @param omitEnvelope
+     *            Tells whether to skip open and close tag of the node.
+     * @throws IOException
+     */
+    public void writeToStream(final TagNode tagNode, final OutputStream out, final String charset,
+            final boolean omitEnvelope) throws IOException {
+        write(tagNode, new OutputStreamWriter(out, charset), charset, omitEnvelope);
+    }
+}
diff --git a/src/org/htmlcleaner/SimpleHtmlSerializer.java b/src/org/htmlcleaner/SimpleHtmlSerializer.java
new file mode 100644
index 0000000..20936d0
--- /dev/null
+++ b/src/org/htmlcleaner/SimpleHtmlSerializer.java
@@ -0,0 +1,86 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * <p>
+ * Simple HTML serializer - creates resulting HTML without indenting and/or
+ * compacting.
+ * </p>
+ */
+public class SimpleHtmlSerializer extends HtmlSerializer {
+    public SimpleHtmlSerializer(final CleanerProperties props) {
+        super(props);
+    }
+
+    protected void serialize(final TagNode tagNode, final Writer writer) throws IOException {
+        serializeOpenTag(tagNode, writer, false);
+
+        if (!isMinimizedTagSyntax(tagNode)) {
+            for (final Object item : tagNode.getChildren()) {
+                if (item instanceof ContentNode) {
+                    final String content = item.toString();
+                    writer.write(dontEscape(tagNode) ? content : escapeText(content));
+                } else if (item instanceof BaseToken) {
+                    ((BaseToken) item).serialize(this, writer);
+                }
+            }
+
+            serializeEndTag(tagNode, writer, false);
+        }
+    }
+}
diff --git a/src/org/htmlcleaner/SimpleXmlSerializer.java b/src/org/htmlcleaner/SimpleXmlSerializer.java
new file mode 100644
index 0000000..abe6ee8
--- /dev/null
+++ b/src/org/htmlcleaner/SimpleXmlSerializer.java
@@ -0,0 +1,87 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * <p>
+ * Simple XML serializer - creates resulting XML without indenting lines.
+ * </p>
+ */
+public class SimpleXmlSerializer extends XmlSerializer {
+
+    public SimpleXmlSerializer(final CleanerProperties props) {
+        super(props);
+    }
+
+    protected void serialize(final TagNode tagNode, final Writer writer) throws IOException {
+        serializeOpenTag(tagNode, writer, false);
+
+        if (!isMinimizedTagSyntax(tagNode)) {
+            for (final Object item : tagNode.getChildren()) {
+                if (item instanceof ContentNode) {
+                    final String content = item.toString();
+                    writer.write(dontEscape(tagNode) ? content.replaceAll("]]>", "]]&gt;") : escapeXml(content));
+                } else if (item instanceof BaseToken) {
+                    ((BaseToken) item).serialize(this, writer);
+                }
+            }
+
+            serializeEndTag(tagNode, writer, false);
+        }
+    }
+
+}
diff --git a/src/org/htmlcleaner/SpecialEntity.java b/src/org/htmlcleaner/SpecialEntity.java
new file mode 100644
index 0000000..cb8b54c
--- /dev/null
+++ b/src/org/htmlcleaner/SpecialEntity.java
@@ -0,0 +1,398 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * <p>
+ * This class contains map with special entities used in HTML and their
+ * unicodes.
+ * </p>
+ */
+final public class SpecialEntity {
+
+    private static Map<String, SpecialEntity> entities = new HashMap<String, SpecialEntity>();
+
+    private static int maxEntityLength = 0;
+
+    static {
+        addEntity("nbsp", 160);
+        addEntity("iexcl", 161);
+        addEntity("cent", 162);
+        addEntity("pound", 163);
+        addEntity("curren", 164);
+        addEntity("yen", 165);
+        addEntity("brvbar", 166);
+        addEntity("sect", 167);
+        addEntity("uml", 168);
+        addEntity("copy", 169);
+        addEntity("ordf", 170);
+        addEntity("laquo", 171);
+        addEntity("not", 172);
+        addEntity("shy", 173);
+        addEntity("reg", 174);
+        addEntity("macr", 175);
+        addEntity("deg", 176);
+        addEntity("plusmn", 177);
+        addEntity("sup2", 178);
+        addEntity("sup3", 179);
+        addEntity("acute", 180);
+        addEntity("micro", 181);
+        addEntity("para", 182);
+        addEntity("middot", 183);
+        addEntity("cedil", 184);
+        addEntity("sup1", 185);
+        addEntity("ordm", 186);
+        addEntity("raquo", 187);
+        addEntity("frac14", 188);
+        addEntity("frac12", 189);
+        addEntity("frac34", 190);
+        addEntity("iquest", 191);
+        addEntity("Agrave", 192);
+        addEntity("Aacute", 193);
+        addEntity("Acirc", 194);
+        addEntity("Atilde", 195);
+        addEntity("Auml", 196);
+        addEntity("Aring", 197);
+        addEntity("AElig", 198);
+        addEntity("Ccedil", 199);
+        addEntity("Egrave", 200);
+        addEntity("Eacute", 201);
+        addEntity("Ecirc", 202);
+        addEntity("Euml", 203);
+        addEntity("Igrave", 204);
+        addEntity("Iacute", 205);
+        addEntity("Icirc", 206);
+        addEntity("Iuml", 207);
+        addEntity("ETH", 208);
+        addEntity("Ntilde", 209);
+        addEntity("Ograve", 210);
+        addEntity("Oacute", 211);
+        addEntity("Ocirc", 212);
+        addEntity("Otilde", 213);
+        addEntity("Ouml", 214);
+        addEntity("times", 215);
+        addEntity("Oslash", 216);
+        addEntity("Ugrave", 217);
+        addEntity("Uacute", 218);
+        addEntity("Ucirc", 219);
+        addEntity("Uuml", 220);
+        addEntity("Yacute", 221);
+        addEntity("THORN", 222);
+        addEntity("szlig", 223);
+        addEntity("agrave", 224);
+        addEntity("aacute", 225);
+        addEntity("acirc", 226);
+        addEntity("atilde", 227);
+        addEntity("auml", 228);
+        addEntity("aring", 229);
+        addEntity("aelig", 230);
+        addEntity("ccedil", 231);
+        addEntity("egrave", 232);
+        addEntity("eacute", 233);
+        addEntity("ecirc", 234);
+        addEntity("euml", 235);
+        addEntity("igrave", 236);
+        addEntity("iacute", 237);
+        addEntity("icirc", 238);
+        addEntity("iuml", 239);
+        addEntity("eth", 240);
+        addEntity("ntilde", 241);
+        addEntity("ograve", 242);
+        addEntity("oacute", 243);
+        addEntity("ocirc", 244);
+        addEntity("otilde", 245);
+        addEntity("ouml", 246);
+        addEntity("divide", 247);
+        addEntity("oslash", 248);
+        addEntity("ugrave", 249);
+        addEntity("uacute", 250);
+        addEntity("ucirc", 251);
+        addEntity("uuml", 252);
+        addEntity("yacute", 253);
+        addEntity("thorn", 254);
+        addEntity("yuml", 255);
+        addEntity("OElig", 338);
+        addEntity("oelig", 339);
+        addEntity("Scaron", 352);
+        addEntity("scaron", 353);
+        addEntity("Yuml", 376);
+        addEntity("fnof", 402);
+        addEntity("circ", 710);
+        addEntity("tilde", 732);
+
+        // Greek letters
+        addEntity("Alpha", 913);
+        addEntity("Beta", 914);
+        addEntity("Gamma", 915);
+        addEntity("Delta", 916);
+        addEntity("Epsilon", 917);
+        addEntity("Zeta", 918);
+        addEntity("Eta", 919);
+        addEntity("Theta", 920);
+        addEntity("Iota", 921);
+        addEntity("Kappa", 922);
+        addEntity("Lambda", 923);
+        addEntity("Mu", 924);
+        addEntity("Nu", 925);
+        addEntity("Xi", 926);
+        addEntity("Omicron", 927);
+        addEntity("Pi", 928);
+        addEntity("Rho", 929);
+        addEntity("Sigma", 931);
+        addEntity("Tau", 932);
+        addEntity("Upsilon", 933);
+        addEntity("Phi", 934);
+        addEntity("Chi", 935);
+        addEntity("Psi", 936);
+        addEntity("Omega", 937);
+        addEntity("alpha", 945);
+        addEntity("beta", 946);
+        addEntity("gamma", 947);
+        addEntity("delta", 948);
+        addEntity("epsilon", 949);
+        addEntity("zeta", 950);
+        addEntity("eta", 951);
+        addEntity("theta", 952);
+        addEntity("iota", 953);
+        addEntity("kappa", 954);
+        addEntity("lambda", 955);
+        addEntity("mu", 956);
+        addEntity("nu", 957);
+        addEntity("xi", 958);
+        addEntity("omicron", 959);
+        addEntity("pi", 960);
+        addEntity("rho", 961);
+        addEntity("sigmaf", 962);
+        addEntity("sigma", 963);
+        addEntity("tau", 964);
+        addEntity("upsilon", 965);
+        addEntity("phi", 966);
+        addEntity("chi", 967);
+        addEntity("psi", 968);
+        addEntity("omega", 969);
+        addEntity("thetasym", 977);
+        addEntity("upsih", 978);
+        addEntity("piv", 982);
+
+        addEntity("ensp", 8194);
+        addEntity("emsp", 8195);
+        addEntity("thinsp", 8201);
+        addEntity("zwnj", 8204);
+        addEntity("zwj", 8205);
+        addEntity("lrm", 8206);
+        addEntity("rlm", 8207);
+        addEntity("ndash", 8211);
+        addEntity("mdash", 8212);
+        addEntity("lsquo", 8216);
+        addEntity("rsquo", 8217);
+        addEntity("sbquo", 8218);
+        addEntity("ldquo", 8220);
+        addEntity("rdquo", 8221);
+        addEntity("bdquo", 8222);
+        addEntity("dagger", 8224);
+        addEntity("Dagger", 8225);
+        addEntity("bull", 8226);
+
+        addEntity("hellip", 8230);
+        addEntity("permil", 8240);
+        addEntity("prime", 8242);
+        addEntity("Prime", 8243);
+        addEntity("lsaquo", 8249);
+        addEntity("rsaquo", 8250);
+        addEntity("oline", 8254);
+        addEntity("frasl", 8260);
+        addEntity("euro", 8364);
+        addEntity("image", 8465);
+        addEntity("weierp", 8472);
+        addEntity("real", 8476);
+        addEntity("trade", 8482);
+        addEntity("alefsym", 8501);
+        addEntity("larr", 8592);
+        addEntity("uarr", 8593);
+        addEntity("rarr", 8594);
+        addEntity("darr", 8595);
+        addEntity("harr", 8596);
+        addEntity("crarr", 8629);
+        addEntity("lArr", 8656);
+        addEntity("uArr", 8657);
+        addEntity("rArr", 8658);
+        addEntity("dArr", 8659);
+        addEntity("hArr", 8660);
+
+        // math symbols
+        addEntity("forall", 8704);
+        addEntity("part", 8706);
+        addEntity("exist", 8707);
+        addEntity("empty", 8709);
+        addEntity("nabla", 8711);
+        addEntity("isin", 8712);
+        addEntity("notin", 8713);
+        addEntity("ni", 8715);
+        addEntity("prod", 8719);
+        addEntity("sum", 8721);
+        addEntity("minus", 8722);
+        addEntity("lowast", 8727);
+        addEntity("radic", 8730);
+        addEntity("prop", 8733);
+        addEntity("infin", 8734);
+        addEntity("ang", 8736);
+        addEntity("and", 8743);
+        addEntity("or", 8744);
+        addEntity("cap", 8745);
+        addEntity("cup", 8746);
+        addEntity("int", 8747);
+        addEntity("there4", 8756);
+        addEntity("sim", 8764);
+        addEntity("cong", 8773);
+        addEntity("asymp", 8776);
+        addEntity("ne", 8800);
+        addEntity("equiv", 8801);
+        addEntity("le", 8804);
+        addEntity("ge", 8805);
+        addEntity("sub", 8834);
+        addEntity("sup", 8835);
+        addEntity("nsub", 8836);
+        addEntity("sube", 8838);
+        addEntity("supe", 8839);
+        addEntity("oplus", 8853);
+        addEntity("otimes", 8855);
+        addEntity("perp", 8869);
+        addEntity("sdot", 8901);
+        addEntity("lceil", 8968);
+        addEntity("rceil", 8969);
+        addEntity("lfloor", 8970);
+        addEntity("rfloor", 8971);
+        addEntity("lang", 9001);
+        addEntity("rang", 9002);
+        addEntity("loz", 9674);
+        addEntity("spades", 9824);
+        addEntity("clubs", 9827);
+        addEntity("hearts", 9829);
+        addEntity("diams", 9830);
+    }
+
+    /**
+     * Add new entity to the set.
+     * 
+     * @param entityName
+     *            Entity name, for example "pound"
+     * @param intCode
+     *            Unicode of the entity, for example 163
+     * 
+     * @throws org.htmlcleaner.HtmlCleanerException
+     */
+    public static void addEntity(final String entityName, final int intCode) throws HtmlCleanerException {
+        if (entities.containsKey(entityName)) {
+            throw new HtmlCleanerException("Entity \"" + entityName + "\" is already defined!");
+        }
+        entities.put(entityName, new SpecialEntity(entityName, intCode));
+        final int entityNameLen = entityName.length();
+        if (entityNameLen > maxEntityLength) {
+            maxEntityLength = entityNameLen;
+        }
+    }
+
+    public static SpecialEntity getEntity(final String key) {
+        return entities.get(key);
+    }
+
+    public static int getMaxEntityLength() {
+        return maxEntityLength;
+    }
+
+    final private String key;
+    final private int intCode;
+
+    private SpecialEntity(final String key, final int intCode) {
+        this.key = key;
+        this.intCode = intCode;
+    }
+
+    public char getCharacter() {
+        return (char) intCode;
+    }
+
+    /**
+     * @return Numeric Character Reference in decimal format
+     */
+    public String getDecimalNCR() {
+        return "&#" + intCode + ";";
+    }
+
+    /**
+     * @return Escaped value of the entity
+     */
+    public String getEscapedValue() {
+        return "&" + key + ";";
+    }
+
+    /**
+     * @return Numeric Character Reference in hex format
+     */
+    public String getHexNCR() {
+        return "&#x" + Integer.toHexString(intCode) + ";";
+    }
+
+    public int getIntCode() {
+        return intCode;
+    }
+
+    public String getKey() {
+        return key;
+    }
+
+}
diff --git a/src/org/htmlcleaner/TagInfo.java b/src/org/htmlcleaner/TagInfo.java
new file mode 100644
index 0000000..7a7efc4
--- /dev/null
+++ b/src/org/htmlcleaner/TagInfo.java
@@ -0,0 +1,406 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.util.*;
+
+/**
+ * <p>
+ * Class contains information about single HTML tag.<br/>
+ * It also contains rules for tag balancing. For each tag, list of dependant
+ * tags may be defined. There are several kinds of dependancies used to reorder
+ * tags:
+ * <ul>
+ * <li>
+ * fatal tags - required outer tag - the tag will be ignored during parsing
+ * (will be skipped) if this fatal tag is missing. For example, most web
+ * browsers ignore elements TD, TR, TBODY if they are not in the context of
+ * TABLE tag.</li>
+ * <li>
+ * required enclosing tags - if there is no such, it is implicitely created. For
+ * example if TD is out of TR - open TR is created before.</li>
+ * <li>
+ * forbidden tags - it is not allowed to occure inside - for example FORM cannot
+ * be inside other FORM and it will be ignored during cleanup.</li>
+ * <li>
+ * allowed children tags - for example TR allowes TD and TH. If there are some
+ * dependant allowed tags defined then cleaner ignores other tags, treating them
+ * as unallowed, unless they are in some other relationship with this tag.</li>
+ * <li>
+ * higher level tags - for example for TR higher tags are THEAD, TBODY, TFOOT.</li>
+ * <li>
+ * tags that must be closed and copied - for example, in
+ * <code>&lt;a href="#"&gt;&lt;div&gt;....</code> tag A must be closed before
+ * DIV but copied again inside DIV.</li>
+ * <li>
+ * tags that must be closed before closing this tag and copied again after - for
+ * example, in <code>&lt;i&gt;&lt;b&gt;at&lt;/i&gt; first&lt;/b&gt; text </code>
+ * tag B must be closed before closing I, but it must be copied again after
+ * resulting finally in sequence:
+ * <code>&lt;i&gt;&lt;b&gt;at&lt;/b&gt;&lt;/i&gt;&lt;b&gt; first&lt;/b&gt; text </code>
+ * .</li>
+ * </ul>
+ * </p>
+ * 
+ * <p>
+ * Tag TR for instance (table row) may define the following dependancies:
+ * <ul>
+ * <li>fatal tag is <code>table</code></li>
+ * <li>required enclosing tag is <code>tbody</code></li>
+ * <li>allowed children tags are <code>td,th</code></li>
+ * <li>higher level tags are <code>thead,tfoot</code></li>
+ * <li>tags that muste be closed before are
+ * <code>tr,td,th,caption,colgroup</code></li>
+ * </ul>
+ * meaning the following: <br>
+ * <ul>
+ * <li><code>tr</code> must be in context of <code>table</code>, otherwise it
+ * will be ignored,</li>
+ * <li><code>tr</code> may can be directly inside <code>tbody</code>,
+ * <code>tfoot</code> and <code>thead</code>, otherwise <code>tbody</code> will
+ * be implicitely created in front of it.</li>
+ * <li><code>tr</code> can contain <code>td</code> and <code>th</code>, all
+ * other tags and content will be pushed out of current limiting context, in the
+ * case of html tables, in front of enclosing <code>table</code> tag.</li>
+ * <li>if previous open tag is one of <code>tr</code>, <code>caption</code> or
+ * <code>colgroup</code>, it will be implicitely closed.</li>
+ * </ul>
+ * </p>
+ */
+public class TagInfo {
+
+    protected static final int HEAD_AND_BODY = 0;
+    protected static final int HEAD = 1;
+    protected static final int BODY = 2;
+
+    protected static final int CONTENT_ALL = 0;
+    protected static final int CONTENT_NONE = 1;
+    protected static final int CONTENT_TEXT = 2;
+
+    private String name;
+    final private int contentType;
+    private Set mustCloseTags = new HashSet();
+    private Set higherTags = new HashSet();
+    private Set childTags = new HashSet();
+    private Set permittedTags = new HashSet();
+    private Set copyTags = new HashSet();
+    private Set continueAfterTags = new HashSet();
+    private int belongsTo = BODY;
+    private String requiredParent = null;
+    private String fatalTag = null;
+    private boolean deprecated = false;
+    private boolean unique = false;
+    private boolean ignorePermitted = false;
+
+    public TagInfo(final String name, final int contentType, final int belongsTo, final boolean depricated,
+            final boolean unique, final boolean ignorePermitted) {
+        this.name = name;
+        this.contentType = contentType;
+        this.belongsTo = belongsTo;
+        this.deprecated = depricated;
+        this.unique = unique;
+        this.ignorePermitted = ignorePermitted;
+    }
+
+    public boolean allowsAnything() {
+        return CONTENT_ALL == contentType && childTags.isEmpty();
+    }
+
+    public boolean allowsBody() {
+        return CONTENT_NONE != contentType;
+    }
+
+    public boolean allowsItem(final BaseToken token) {
+        if (contentType != CONTENT_NONE && token instanceof TagToken) {
+            final TagToken tagToken = (TagToken) token;
+            final String tagName = tagToken.getName();
+            if ("script".equals(tagName)) {
+                return true;
+            }
+        }
+
+        if (CONTENT_ALL == contentType) {
+            if (!childTags.isEmpty()) {
+                return token instanceof TagToken ? childTags.contains(((TagToken) token).getName()) : false;
+            } else if (!permittedTags.isEmpty()) {
+                return token instanceof TagToken ? !permittedTags.contains(((TagToken) token).getName()) : true;
+            }
+            return true;
+        } else if (CONTENT_TEXT == contentType) {
+            return !(token instanceof TagToken);
+        }
+
+        return false;
+    }
+
+    public void defineAllowedChildrenTags(final String commaSeparatedListOfTags) {
+        final StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            final String currTag = tokenizer.nextToken();
+            this.childTags.add(currTag);
+        }
+    }
+
+    public void defineCloseBeforeCopyInsideTags(final String commaSeparatedListOfTags) {
+        final StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            final String currTag = tokenizer.nextToken();
+            this.copyTags.add(currTag);
+            this.mustCloseTags.add(currTag);
+        }
+    }
+
+    public void defineCloseBeforeTags(final String commaSeparatedListOfTags) {
+        final StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            final String currTag = tokenizer.nextToken();
+            this.mustCloseTags.add(currTag);
+        }
+    }
+
+    public void defineCloseInsideCopyAfterTags(final String commaSeparatedListOfTags) {
+        final StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            final String currTag = tokenizer.nextToken();
+            this.continueAfterTags.add(currTag);
+        }
+    }
+
+    public void defineFatalTags(final String commaSeparatedListOfTags) {
+        final StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            final String currTag = tokenizer.nextToken();
+            this.fatalTag = currTag;
+            this.higherTags.add(currTag);
+        }
+    }
+
+    // getters and setters
+
+    public void defineForbiddenTags(final String commaSeparatedListOfTags) {
+        final StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            final String currTag = tokenizer.nextToken();
+            this.permittedTags.add(currTag);
+        }
+    }
+
+    public void defineHigherLevelTags(final String commaSeparatedListOfTags) {
+        final StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            final String currTag = tokenizer.nextToken();
+            this.higherTags.add(currTag);
+        }
+    }
+
+    public void defineRequiredEnclosingTags(final String commaSeparatedListOfTags) {
+        final StringTokenizer tokenizer = new StringTokenizer(commaSeparatedListOfTags.toLowerCase(), ",");
+        while (tokenizer.hasMoreTokens()) {
+            final String currTag = tokenizer.nextToken();
+            this.requiredParent = currTag;
+            this.higherTags.add(currTag);
+        }
+    }
+
+    public int getBelongsTo() {
+        return belongsTo;
+    }
+
+    public Set getChildTags() {
+        return childTags;
+    }
+
+    public int getContentType() {
+        return contentType;
+    }
+
+    public Set getContinueAfterTags() {
+        return continueAfterTags;
+    }
+
+    public Set getCopyTags() {
+        return copyTags;
+    }
+
+    public String getFatalTag() {
+        return fatalTag;
+    }
+
+    public Set getHigherTags() {
+        return higherTags;
+    }
+
+    public Set getMustCloseTags() {
+        return mustCloseTags;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Set getPermittedTags() {
+        return permittedTags;
+    }
+
+    public String getRequiredParent() {
+        return requiredParent;
+    }
+
+    public boolean hasCopyTags() {
+        return !copyTags.isEmpty();
+    }
+
+    public boolean hasPermittedTags() {
+        return !permittedTags.isEmpty();
+    }
+
+    public boolean isContinueAfter(final String tagName) {
+        return continueAfterTags.contains(tagName);
+    }
+
+    public boolean isCopy(final String tagName) {
+        return copyTags.contains(tagName);
+    }
+
+    public boolean isDeprecated() {
+        return deprecated;
+    }
+
+    public boolean isEmptyTag() {
+        return CONTENT_NONE == contentType;
+    }
+
+    public boolean isHeadAndBodyTag() {
+        return belongsTo == HEAD || belongsTo == HEAD_AND_BODY;
+    }
+
+    public boolean isHeadTag() {
+        return belongsTo == HEAD;
+    }
+
+    public boolean isHigher(final String tagName) {
+        return higherTags.contains(tagName);
+    }
+
+    public boolean isIgnorePermitted() {
+        return ignorePermitted;
+    }
+
+    public boolean isMustCloseTag(final TagInfo tagInfo) {
+        if (tagInfo != null) {
+            return mustCloseTags.contains(tagInfo.getName()) || tagInfo.contentType == CONTENT_TEXT;
+        }
+
+        return false;
+    }
+
+    public boolean isUnique() {
+        return unique;
+    }
+
+    public void setBelongsTo(final int belongsTo) {
+        this.belongsTo = belongsTo;
+    }
+
+    public void setChildTags(final Set childTags) {
+        this.childTags = childTags;
+    }
+
+    // other functionality
+
+    public void setContinueAfterTags(final Set continueAfterTags) {
+        this.continueAfterTags = continueAfterTags;
+    }
+
+    public void setCopyTags(final Set copyTags) {
+        this.copyTags = copyTags;
+    }
+
+    public void setDeprecated(final boolean deprecated) {
+        this.deprecated = deprecated;
+    }
+
+    public void setFatalTag(final String fatalTag) {
+        this.fatalTag = fatalTag;
+    }
+
+    public void setHigherTags(final Set higherTags) {
+        this.higherTags = higherTags;
+    }
+
+    public void setIgnorePermitted(final boolean ignorePermitted) {
+        this.ignorePermitted = ignorePermitted;
+    }
+
+    public void setMustCloseTags(final Set mustCloseTags) {
+        this.mustCloseTags = mustCloseTags;
+    }
+
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    public void setPermittedTags(final Set permittedTags) {
+        this.permittedTags = permittedTags;
+    }
+
+    public void setRequiredParent(final String requiredParent) {
+        this.requiredParent = requiredParent;
+    }
+
+    public void setUnique(final boolean unique) {
+        this.unique = unique;
+    }
+
+}
diff --git a/src/org/htmlcleaner/TagNode.java b/src/org/htmlcleaner/TagNode.java
new file mode 100644
index 0000000..3338de5
--- /dev/null
+++ b/src/org/htmlcleaner/TagNode.java
@@ -0,0 +1,765 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * <p>
+ * XML node tag - basic node of the cleaned HTML tree. At the same time, it
+ * represents start tag token after HTML parsing phase and before cleaning
+ * phase. After cleaning process, tree structure remains containing tag nodes
+ * (TagNode class), content (text nodes - ContentNode), comments (CommentNode)
+ * and optionally doctype node (DoctypeToken).
+ * </p>
+ */
+public class TagNode extends TagToken implements HtmlNode {
+
+    /**
+     * Used as base for different node checkers.
+     */
+    public interface ITagNodeCondition {
+        boolean satisfy(TagNode tagNode);
+    }
+
+    /**
+     * All nodes.
+     */
+    public class TagAllCondition implements ITagNodeCondition {
+        public boolean satisfy(final TagNode tagNode) {
+            return true;
+        }
+    }
+
+    /**
+     * Checks if node contains specified attribute.
+     */
+    public class TagNodeAttExistsCondition implements ITagNodeCondition {
+        final private String attName;
+
+        public TagNodeAttExistsCondition(final String attName) {
+            this.attName = attName.toLowerCase();
+        }
+
+        public boolean satisfy(final TagNode tagNode) {
+            return tagNode == null ? false : tagNode.attributes.containsKey(attName);
+        }
+    }
+
+    /**
+     * Checks if node has specified attribute with specified value.
+     */
+    public class TagNodeAttValueCondition implements ITagNodeCondition {
+        final private String attName;
+        final private String attValue;
+        final private boolean isCaseSensitive;
+
+        public TagNodeAttValueCondition(final String attName, final String attValue, final boolean isCaseSensitive) {
+            this.attName = attName;
+            this.attValue = attValue;
+            this.isCaseSensitive = isCaseSensitive;
+        }
+
+        public boolean satisfy(final TagNode tagNode) {
+            if (tagNode == null || attName == null || attValue == null) {
+                return false;
+            } else {
+                return isCaseSensitive ? attValue.equals(tagNode.getAttributeByName(attName)) : attValue
+                        .equalsIgnoreCase(tagNode.getAttributeByName(attName));
+            }
+        }
+    }
+
+    /**
+     * Checks if node has specified name.
+     */
+    public class TagNodeNameCondition implements ITagNodeCondition {
+        final private String name;
+
+        public TagNodeNameCondition(final String name) {
+            this.name = name;
+        }
+
+        public boolean satisfy(final TagNode tagNode) {
+            return tagNode == null ? false : tagNode.name.equalsIgnoreCase(this.name);
+        }
+    }
+
+    private TagNode parent = null;
+    private Map<String, String> attributes = new LinkedHashMap<String, String>();
+    private List<Object> children = new ArrayList<Object>();
+    private DoctypeToken docType = null;
+    private Map<String, String> nsDeclarations = null;
+    private List<BaseToken> itemsToMove = null;
+
+    private transient boolean isFormed = false;
+
+    public TagNode(final String name) {
+        super(name == null ? null : name.toLowerCase());
+    }
+
+    /**
+     * @deprecated Use setAttribute instead Adds specified attribute to this tag
+     *             or overrides existing one.
+     * @param attName
+     * @param attValue
+     */
+    @Deprecated
+    public void addAttribute(final String attName, final String attValue) {
+        setAttribute(attName, attValue);
+    }
+
+    public void addChild(final Object child) {
+        if (child == null) {
+            return;
+        }
+        if (child instanceof List<?>) {
+            addChildren((List<?>) child);
+        } else {
+            children.add(child);
+            if (child instanceof TagNode) {
+                final TagNode childTagNode = (TagNode) child;
+                childTagNode.parent = this;
+            }
+        }
+    }
+
+    /**
+     * Add all elements from specified list to this node.
+     * 
+     * @param newChildren
+     */
+    public void addChildren(final List<?> newChildren) {
+        if (newChildren != null) {
+            final Iterator<?> it = newChildren.iterator();
+            while (it.hasNext()) {
+                final Object child = it.next();
+                addChild(child);
+            }
+        }
+    }
+
+    public void addItemForMoving(final BaseToken item) {
+        if (itemsToMove == null) {
+            itemsToMove = new ArrayList<BaseToken>();
+        }
+
+        itemsToMove.add(item);
+    }
+
+    /**
+     * Adds namespace declaration to the node
+     * 
+     * @param nsPrefix
+     *            Namespace prefix
+     * @param nsURI
+     *            Namespace URI
+     */
+    public void addNamespaceDeclaration(final String nsPrefix, final String nsURI) {
+        if (nsDeclarations == null) {
+            nsDeclarations = new TreeMap<String, String>();
+        }
+        nsDeclarations.put(nsPrefix, nsURI);
+    }
+
+    /**
+     * Collect all prefixes in namespace declarations up the path to the
+     * document root from the specified node
+     * 
+     * @param prefixes
+     *            Set of prefixes to be collected
+     */
+    public void collectNamespacePrefixesOnPath(final Set<String> prefixes) {
+        final Map<String, String> nsDeclarations = getNamespaceDeclarations();
+        if (nsDeclarations != null) {
+            for (String prefix : nsDeclarations.keySet()) {
+                prefixes.add(prefix);
+            }
+        }
+        if (parent != null) {
+            parent.collectNamespacePrefixesOnPath(prefixes);
+        }
+    }
+
+    /**
+     * Evaluates XPath expression on give node. <br>
+     * <em>
+     *  This is not fully supported XPath parser and evaluator.
+     *  Examples below show supported elements:
+     * </em> <code>
+     * <ul>
+     *      <li>//div//a</li>
+     *      <li>//div//a[@id][@class]</li>
+     *      <li>/body/*[1]/@type</li>
+     *      <li>//div[3]//a[@id][@href='r/n4']</li>
+     *      <li>//div[last() >= 4]//./div[position() = last()])[position() > 22]//li[2]//a</li>
+     *      <li>//div[2]/@*[2]</li>
+     *      <li>data(//div//a[@id][@class])</li>
+     *      <li>//p/last()</li>
+     *      <li>//body//div[3][@class]//span[12.2<position()]/@id</li>
+     *      <li>data(//a['v' < @id])</li>
+     * </ul>
+     * </code>
+     * 
+     * @param xPathExpression
+     * @return
+     * @throws XPatherException
+     */
+    public Object[] evaluateXPath(final String xPathExpression) throws XPatherException {
+        return new XPather(xPathExpression).evaluateAgainstNode(this);
+    }
+
+    /**
+     * Finds first element in the tree that satisfy specified condition.
+     * 
+     * @param condition
+     * @param isRecursive
+     * @return First TagNode found, or null if no such elements.
+     */
+    private TagNode findElement(final ITagNodeCondition condition, final boolean isRecursive) {
+        if (condition == null) {
+            return null;
+        }
+
+        for (int i = 0; i < children.size(); i++) {
+            final Object item = children.get(i);
+            if (item instanceof TagNode) {
+                final TagNode currNode = (TagNode) item;
+                if (condition.satisfy(currNode)) {
+                    return currNode;
+                } else if (isRecursive) {
+                    final TagNode inner = currNode.findElement(condition, isRecursive);
+                    if (inner != null) {
+                        return inner;
+                    }
+                }
+            }
+        }
+
+        return null;
+    }
+
+    public TagNode findElementByAttValue(final String attName, final String attValue, final boolean isRecursive,
+            final boolean isCaseSensitive) {
+        return findElement(new TagNodeAttValueCondition(attName, attValue, isCaseSensitive), isRecursive);
+    }
+
+    public TagNode findElementByName(final String findName, final boolean isRecursive) {
+        return findElement(new TagNodeNameCondition(findName), isRecursive);
+    }
+
+    public TagNode findElementHavingAttribute(final String attName, final boolean isRecursive) {
+        return findElement(new TagNodeAttExistsCondition(attName), isRecursive);
+    }
+
+    public TagNode[] getAllElements(final boolean isRecursive) {
+        return getElements(new TagAllCondition(), isRecursive);
+    }
+
+    public List getAllElementsList(final boolean isRecursive) {
+        return getElementList(new TagAllCondition(), isRecursive);
+    }
+
+    /**
+     * @param attName
+     * @return Value of the specified attribute, or null if it this tag doesn't
+     *         contain it.
+     */
+    public String getAttributeByName(final String attName) {
+        return attName != null ? attributes.get(attName.toLowerCase()) : null;
+    }
+
+    /**
+     * @return Map instance containing all attribute name/value pairs.
+     */
+    public Map<String, String> getAttributes() {
+        return attributes;
+    }
+
+    /**
+     * @param child
+     *            Child to find index of
+     * @return Index of the specified child node inside this node's children, -1
+     *         if node is not the child
+     */
+    public int getChildIndex(final HtmlNode child) {
+        int index = 0;
+        for (final Object curr : children) {
+            if (curr == child) {
+                return index;
+            }
+            index++;
+        }
+        return -1;
+    }
+
+    /**
+     * @return List of children objects. During the cleanup process there could
+     *         be different kind of childern inside, however after clean there
+     *         should be only TagNode instances.
+     */
+    public List<Object> getChildren() {
+        return children;
+    }
+
+    public List<TagNode> getChildTagList() {
+        final List<TagNode> childTagList = new ArrayList<TagNode>();
+        for (int i = 0; i < children.size(); i++) {
+            final Object item = children.get(i);
+            if (item instanceof TagNode) {
+                childTagList.add((TagNode) item);
+            }
+        }
+
+        return childTagList;
+    }
+
+    /**
+     * @return An array of child TagNode instances.
+     */
+    public TagNode[] getChildTags() {
+        final List<TagNode> childTagList = getChildTagList();
+        final TagNode childrenArray[] = new TagNode[childTagList.size()];
+        for (int i = 0; i < childTagList.size(); i++) {
+            childrenArray[i] = (TagNode) childTagList.get(i);
+        }
+
+        return childrenArray;
+    }
+
+    public DoctypeToken getDocType() {
+        return docType;
+    }
+
+    /**
+     * Get all elements in the tree that satisfy specified condition.
+     * 
+     * @param condition
+     * @param isRecursive
+     * @return List of TagNode instances with specified name.
+     */
+    private List getElementList(final ITagNodeCondition condition, final boolean isRecursive) {
+        final List result = new LinkedList();
+        if (condition == null) {
+            return result;
+        }
+
+        for (int i = 0; i < children.size(); i++) {
+            final Object item = children.get(i);
+            if (item instanceof TagNode) {
+                final TagNode currNode = (TagNode) item;
+                if (condition.satisfy(currNode)) {
+                    result.add(currNode);
+                }
+                if (isRecursive) {
+                    final List innerList = currNode.getElementList(condition, isRecursive);
+                    if (innerList != null && !innerList.isEmpty()) {
+                        result.addAll(innerList);
+                    }
+                }
+            }
+        }
+
+        return result;
+    }
+
+    public List getElementListByAttValue(final String attName, final String attValue, final boolean isRecursive,
+            final boolean isCaseSensitive) {
+        return getElementList(new TagNodeAttValueCondition(attName, attValue, isCaseSensitive), isRecursive);
+    }
+
+    public List getElementListByName(final String findName, final boolean isRecursive) {
+        return getElementList(new TagNodeNameCondition(findName), isRecursive);
+    }
+
+    public List getElementListHavingAttribute(final String attName, final boolean isRecursive) {
+        return getElementList(new TagNodeAttExistsCondition(attName), isRecursive);
+    }
+
+    /**
+     * @param condition
+     * @param isRecursive
+     * @return The array of all subelemets that satisfy specified condition.
+     */
+    private TagNode[] getElements(final ITagNodeCondition condition, final boolean isRecursive) {
+        final List list = getElementList(condition, isRecursive);
+        final TagNode array[] = new TagNode[list == null ? 0 : list.size()];
+        for (int i = 0; i < list.size(); i++) {
+            array[i] = (TagNode) list.get(i);
+        }
+
+        return array;
+    }
+
+    public TagNode[] getElementsByAttValue(final String attName, final String attValue, final boolean isRecursive,
+            final boolean isCaseSensitive) {
+        return getElements(new TagNodeAttValueCondition(attName, attValue, isCaseSensitive), isRecursive);
+    }
+
+    public TagNode[] getElementsByName(final String findName, final boolean isRecursive) {
+        return getElements(new TagNodeNameCondition(findName), isRecursive);
+    }
+
+    public TagNode[] getElementsHavingAttribute(final String attName, final boolean isRecursive) {
+        return getElements(new TagNodeAttExistsCondition(attName), isRecursive);
+    }
+
+    public List<BaseToken> getItemsToMove() {
+        return itemsToMove;
+    }
+
+    /**
+     * @return Map of namespace declarations for this node
+     */
+    public Map<String, String> getNamespaceDeclarations() {
+        return nsDeclarations;
+    }
+
+    public String getNamespaceURIOnPath(final String nsPrefix) {
+        if (nsDeclarations != null) {
+            for (final Map.Entry<String, String> nsEntry : nsDeclarations.entrySet()) {
+                final String currName = nsEntry.getKey();
+                if (currName.equals(nsPrefix) || ("".equals(currName) && nsPrefix == null)) {
+                    return nsEntry.getValue();
+                }
+            }
+        }
+        if (parent != null) {
+            return parent.getNamespaceURIOnPath(nsPrefix);
+        }
+
+        return null;
+    }
+
+    /**
+     * @return Parent of this node, or null if this is the root node.
+     */
+    public TagNode getParent() {
+        return parent;
+    }
+
+    /**
+     * @return Text content of this node and it's subelements.
+     */
+    public StringBuffer getText() {
+        final StringBuffer text = new StringBuffer();
+        for (int i = 0; i < children.size(); i++) {
+            final Object item = children.get(i);
+            if (item instanceof ContentNode) {
+                text.append(item.toString());
+            } else if (item instanceof TagNode) {
+                final StringBuffer subtext = ((TagNode) item).getText();
+                text.append(subtext);
+            }
+        }
+
+        return text;
+    }
+
+    /**
+     * Checks existance of specified attribute.
+     * 
+     * @param attName
+     */
+    public boolean hasAttribute(final String attName) {
+        return attName != null ? attributes.containsKey(attName.toLowerCase()) : false;
+    }
+
+    /**
+     * @return Whether this node has child elements or not.
+     */
+    public boolean hasChildren() {
+        return !children.isEmpty();
+    }
+
+    /**
+     * Inserts specified node at specified position in array of children
+     * 
+     * @param index
+     * @param childToAdd
+     */
+    public void insertChild(final int index, final HtmlNode childToAdd) {
+        children.add(index, childToAdd);
+    }
+
+    /**
+     * Inserts specified node in the list of children after specified child
+     * 
+     * @param node
+     *            Child after which to insert new node
+     * @param nodeToInsert
+     *            Node to be inserted at specified position
+     */
+    public void insertChildAfter(final HtmlNode node, final HtmlNode nodeToInsert) {
+        final int index = getChildIndex(node);
+        if (index >= 0) {
+            insertChild(index + 1, nodeToInsert);
+        }
+    }
+
+    /**
+     * Inserts specified node in the list of children before specified child
+     * 
+     * @param node
+     *            Child before which to insert new node
+     * @param nodeToInsert
+     *            Node to be inserted at specified position
+     */
+    public void insertChildBefore(final HtmlNode node, final HtmlNode nodeToInsert) {
+        final int index = getChildIndex(node);
+        if (index >= 0) {
+            insertChild(index, nodeToInsert);
+        }
+    }
+
+    public boolean isFormed() {
+        return isFormed;
+    }
+
+    public TagNode makeCopy() {
+        final TagNode copy = new TagNode(name);
+        copy.attributes.putAll(attributes);
+        return copy;
+    }
+
+    /**
+     * Removes all children (subelements and text content).
+     */
+    public void removeAllChildren() {
+        this.children.clear();
+    }
+
+    /**
+     * Removes specified attribute from this tag.
+     * 
+     * @param attName
+     */
+    public void removeAttribute(final String attName) {
+        if (attName != null && !"".equals(attName.trim())) {
+            attributes.remove(attName.toLowerCase());
+        }
+    }
+
+    /**
+     * Remove specified child element from this node.
+     * 
+     * @param child
+     * @return True if child object existed in the children list.
+     */
+    public boolean removeChild(final Object child) {
+        return this.children.remove(child);
+    }
+
+    /**
+     * Remove this node from the tree.
+     * 
+     * @return True if element is removed (if it is not root node).
+     */
+    public boolean removeFromTree() {
+        if (parent != null) {
+            final boolean existed = parent.removeChild(this);
+            parent = null;
+            return existed;
+        }
+        return false;
+    }
+
+    /**
+     * Replaces specified child node with specified replacement node.
+     * 
+     * @param childToReplace
+     *            Child node to be replaced
+     * @param replacement
+     *            Replacement node
+     */
+    public void replaceChild(final HtmlNode childToReplace, final HtmlNode replacement) {
+        if (replacement == null) {
+            return;
+        }
+        final ListIterator it = children.listIterator();
+        while (it.hasNext()) {
+            final Object curr = it.next();
+            if (curr == childToReplace) {
+                it.set(replacement);
+                break;
+            }
+        }
+    }
+
+    public void serialize(final Serializer serializer, final Writer writer) throws IOException {
+        serializer.serialize(this, writer);
+    }
+
+    /**
+     * Adding new attribute ir overriding existing one.
+     * 
+     * @param attName
+     * @param attValue
+     */
+    public void setAttribute(String attName, final String attValue) {
+        if (attName != null && !"".equals(attName.trim())) {
+            attName = attName.toLowerCase();
+            if ("xmlns".equals(attName)) {
+                addNamespaceDeclaration("", attValue);
+            } else if (attName.startsWith("xmlns:")) {
+                addNamespaceDeclaration(attName.substring(6), attValue);
+            } else {
+                attributes.put(attName, attValue == null ? "" : attValue);
+            }
+        }
+    }
+
+    public void setChildren(final List<Object> children) {
+        this.children = children;
+    }
+
+    public void setDocType(final DoctypeToken docType) {
+        this.docType = docType;
+    }
+
+    public void setFormed() {
+        setFormed(true);
+    }
+
+    public void setFormed(final boolean isFormed) {
+        this.isFormed = isFormed;
+    }
+
+    public void setItemsToMove(final List<BaseToken> itemsToMove) {
+        this.itemsToMove = itemsToMove;
+    }
+
+    /**
+     * Changes name of the tag
+     * 
+     * @param name
+     * @return True if new name is valid, false otherwise
+     */
+    public boolean setName(final String name) {
+        if (Utils.isValidXmlIdentifier(name)) {
+            this.name = name;
+            return true;
+        }
+
+        return false;
+    }
+
+    public void transformAttributes(final TagTransformation tagTrans) {
+        final boolean isPreserveSourceAtts = tagTrans.isPreserveSourceAttributes();
+        final boolean hasAttTransforms = tagTrans.hasAttributeTransformations();
+        if (hasAttTransforms || !isPreserveSourceAtts) {
+            final Map<String, String> newAttributes = isPreserveSourceAtts ? new LinkedHashMap<String, String>(
+                    attributes) : new LinkedHashMap<String, String>();
+            if (hasAttTransforms) {
+                final Map map = tagTrans.getAttributeTransformations();
+                final Iterator iterator = map.entrySet().iterator();
+                while (iterator.hasNext()) {
+                    final Map.Entry entry = (Map.Entry) iterator.next();
+                    final String attName = (String) entry.getKey();
+                    final String template = (String) entry.getValue();
+                    if (template == null) {
+                        newAttributes.remove(attName);
+                    } else {
+                        final String attValue = Utils.evaluateTemplate(template, attributes);
+                        newAttributes.put(attName, attValue);
+                    }
+                }
+            }
+            this.attributes = newAttributes;
+        }
+    }
+
+    /**
+     * Traverses the tree and performs visitor's action on each node. It stops
+     * when it finishes all the tree or when visitor returns false.
+     * 
+     * @param visitor
+     *            TagNodeVisitor implementation
+     */
+    public void traverse(final TagNodeVisitor visitor) {
+        traverseInternally(visitor);
+    }
+
+    private boolean traverseInternally(final TagNodeVisitor visitor) {
+        if (visitor != null) {
+            final boolean hasParent = parent != null;
+            boolean toContinue = visitor.visit(parent, this);
+
+            if (!toContinue) {
+                return false; // if visitor stops traversal
+            } else if (hasParent && parent == null) {
+                return true;
+                // if this node is pruned from the tree during the visit, then
+                // don't go deeper
+            }
+            for (final Object child : children.toArray()) {
+                // make an array to avoid ConcurrentModificationException when
+                // some node is cut
+                if (child instanceof TagNode) {
+                    toContinue = ((TagNode) child).traverseInternally(visitor);
+                } else if (child instanceof ContentNode) {
+                    toContinue = visitor.visit(this, (ContentNode) child);
+                } else if (child instanceof CommentNode) {
+                    toContinue = visitor.visit(this, (CommentNode) child);
+                }
+                if (!toContinue) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+}
diff --git a/src/org/htmlcleaner/TagNodeVisitor.java b/src/org/htmlcleaner/TagNodeVisitor.java
new file mode 100644
index 0000000..d24fd25
--- /dev/null
+++ b/src/org/htmlcleaner/TagNodeVisitor.java
@@ -0,0 +1,36 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+package org.htmlcleaner;
+
+/**
+ * Defines action to be performed on TagNodes
+ */
+public interface TagNodeVisitor {
+
+    /**
+     * Action to be performed on single node in the tree
+     * 
+     * @param parentNode
+     *            Parent of tagNode
+     * @param htmlNode
+     *            node visited
+     * @return True if tree traversal should be continued, false if it has to
+     *         stop.
+     */
+    boolean visit(TagNode parentNode, HtmlNode htmlNode);
+
+}
diff --git a/src/org/htmlcleaner/TagToken.java b/src/org/htmlcleaner/TagToken.java
new file mode 100644
index 0000000..37c544a
--- /dev/null
+++ b/src/org/htmlcleaner/TagToken.java
@@ -0,0 +1,81 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+/**
+ * <p>
+ * HTML tag token - descendants are start (TagNode) and end token (EndTagToken).
+ * </p>
+ */
+public abstract class TagToken implements BaseToken {
+    protected String name;
+
+    public TagToken() {
+        // TODO empty method
+    }
+
+    public TagToken(final String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String toString() {
+        return name;
+    }
+
+    abstract public void setAttribute(String attName, String attValue);
+}
diff --git a/src/org/htmlcleaner/TagTransformation.java b/src/org/htmlcleaner/TagTransformation.java
new file mode 100644
index 0000000..20a3321
--- /dev/null
+++ b/src/org/htmlcleaner/TagTransformation.java
@@ -0,0 +1,164 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.util.Map;
+import java.util.LinkedHashMap;
+
+/**
+ * Describes how specified tag is transformed to another one, or is ignored
+ * during parsing
+ */
+public class TagTransformation {
+
+    private String sourceTag;
+    private String destTag;
+    private boolean preserveSourceAttributes;
+    private Map attributeTransformations;
+
+    /**
+     * Creates new tag transformation from source tag to target tag specifying
+     * whether source tag attributes are preserved.
+     * 
+     * @param sourceTag
+     *            Name of the tag to be transformed.
+     * @param destTag
+     *            Name of tag to which source tag is to be transformed.
+     * @param preserveSourceAttributes
+     *            Tells whether source tag attributes are preserved in
+     *            transformation.
+     */
+    public TagTransformation(final String sourceTag, final String destTag, final boolean preserveSourceAttributes) {
+        this.sourceTag = sourceTag.toLowerCase();
+        if (destTag == null) {
+            this.destTag = null;
+        } else {
+            this.destTag = Utils.isValidXmlIdentifier(destTag) ? destTag.toLowerCase() : sourceTag;
+        }
+        this.preserveSourceAttributes = preserveSourceAttributes;
+    }
+
+    /**
+     * Creates new tag transformation from source tag to target tag preserving
+     * all source tag attributes.
+     * 
+     * @param sourceTag
+     *            Name of the tag to be transformed.
+     * @param destTag
+     *            Name of tag to which source tag is to be transformed.
+     */
+    public TagTransformation(final String sourceTag, final String destTag) {
+        this(sourceTag, destTag, true);
+    }
+
+    /**
+     * Creates new tag transformation in which specified tag will be skipped
+     * (ignored) during parsing process.
+     * 
+     * @param sourceTag
+     */
+    public TagTransformation(final String sourceTag) {
+        this(sourceTag, null);
+    }
+
+    /**
+     * Adds new attribute transformation to this tag transformation. It tells
+     * how destination attribute will look like. Small templating mechanism is
+     * used to describe attribute value: all names between ${ and } inside the
+     * template are evaluated against source tag attributes. That way one can
+     * make attribute values consist of mix of source tag attributes.
+     * 
+     * @param targetAttName
+     *            Name of the destination attribute
+     * @param transformationDesc
+     *            Template describing attribute value.
+     */
+    public void addAttributeTransformation(final String targetAttName, final String transformationDesc) {
+        if (attributeTransformations == null) {
+            attributeTransformations = new LinkedHashMap();
+        }
+        attributeTransformations.put(targetAttName.toLowerCase(), transformationDesc);
+    }
+
+    /**
+     * Adds new attribute transformation in which destination attrbute will not
+     * exists (simply removes it from list of attributes).
+     * 
+     * @param targetAttName
+     */
+    public void addAttributeTransformation(final String targetAttName) {
+        addAttributeTransformation(targetAttName, null);
+    }
+
+    boolean hasAttributeTransformations() {
+        return attributeTransformations != null;
+    }
+
+    String getSourceTag() {
+        return sourceTag;
+    }
+
+    String getDestTag() {
+        return destTag;
+    }
+
+    boolean isPreserveSourceAttributes() {
+        return preserveSourceAttributes;
+    }
+
+    Map getAttributeTransformations() {
+        return attributeTransformations;
+    }
+
+}
diff --git a/src/org/htmlcleaner/Utils.java b/src/org/htmlcleaner/Utils.java
new file mode 100644
index 0000000..28f1cc4
--- /dev/null
+++ b/src/org/htmlcleaner/Utils.java
@@ -0,0 +1,519 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.net.URL;
+import java.nio.charset.Charset;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.StringTokenizer;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * <p>
+ * Common utilities.
+ * </p>
+ */
+final public class Utils {
+    final public static String VAR_START = "${";
+    final public static String VAR_END = "}";
+
+    public static final Map<Character, String> RESERVED_XML_CHARS = new HashMap<Character, String>();
+
+    static {
+        RESERVED_XML_CHARS.put('&', "&amp;");
+        RESERVED_XML_CHARS.put('<', "&lt;");
+        RESERVED_XML_CHARS.put('>', "&gt;");
+        RESERVED_XML_CHARS.put('\"', "&quot;");
+        RESERVED_XML_CHARS.put('\'', "&apos;");
+    }
+
+    /**
+     * Trims specified string from left.
+     * 
+     * @param s
+     */
+    public static String ltrim(final String s) {
+        if (s == null) {
+            return null;
+        }
+
+        int index = 0;
+        final int len = s.length();
+
+        while (index < len && Character.isWhitespace(s.charAt(index))) {
+            index++;
+        }
+
+        return (index >= len) ? "" : s.substring(index);
+    }
+
+    /**
+     * Trims specified string from right.
+     * 
+     * @param s
+     */
+    public static String rtrim(final String s) {
+        if (s == null) {
+            return null;
+        }
+
+        final int len = s.length();
+        int index = len;
+
+        while (index > 0 && Character.isWhitespace(s.charAt(index - 1))) {
+            index--;
+        }
+
+        return (index <= 0) ? "" : s.substring(0, index);
+    }
+
+    public static String getCharsetFromContentTypeString(final String contentType) {
+        if (contentType != null) {
+            final String pattern = "charset=([a-z\\d\\-]*)";
+            final Matcher matcher = Pattern.compile(pattern, Pattern.CASE_INSENSITIVE).matcher(contentType);
+            if (matcher.find()) {
+                final String charset = matcher.group(1);
+                if (Charset.isSupported(charset)) {
+                    return charset;
+                }
+            }
+        }
+
+        return null;
+    }
+
+    public static String getCharsetFromContent(final URL url) throws IOException {
+        final InputStream stream = url.openStream();
+        final byte chunk[] = new byte[2048];
+        final int bytesRead = stream.read(chunk);
+        if (bytesRead > 0) {
+            final String startContent = new String(chunk);
+            final String pattern = "\\<meta\\s*http-equiv=[\\\"\\']content-type[\\\"\\']\\s*content\\s*=\\s*[\"']text/html\\s*;\\s*charset=([a-z\\d\\-]*)[\\\"\\'\\>]";
+            final Matcher matcher = Pattern.compile(pattern, Pattern.CASE_INSENSITIVE).matcher(startContent);
+            if (matcher.find()) {
+                final String charset = matcher.group(1);
+                if (Charset.isSupported(charset)) {
+                    return charset;
+                }
+            }
+        }
+
+        return null;
+    }
+
+    public static boolean isHexadecimalDigit(final char ch) {
+        return Character.isDigit(ch) || ch == 'A' || ch == 'a' || ch == 'B' || ch == 'b' || ch == 'C' || ch == 'c'
+                || ch == 'D' || ch == 'd' || ch == 'E' || ch == 'e' || ch == 'F' || ch == 'f';
+    }
+
+    public static boolean isValidXmlChar(final char ch) {
+        return ((ch >= 0x20) && (ch <= 0xD7FF)) || (ch == 0x9) || (ch == 0xA) || (ch == 0xD)
+                || ((ch >= 0xE000) && (ch <= 0xFFFD)) || ((ch >= 0x10000) && (ch <= 0x10FFFF));
+    }
+
+    public static boolean isReservedXmlChar(final char ch) {
+        return RESERVED_XML_CHARS.containsKey(ch);
+    }
+
+    public static boolean isValidInt(final String s, final int radix) {
+        try {
+            Integer.parseInt(s, radix);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+
+    /**
+     * Escapes XML string.
+     * 
+     * @param s
+     *            String to be escaped
+     * @param props
+     *            Cleaner properties gover affect escaping behaviour
+     * @param isDomCreation
+     *            Tells if escaped content will be part of the DOM
+     */
+    public static String escapeXml(final String s, final CleanerProperties props, final boolean isDomCreation) {
+        final boolean advanced = props.isAdvancedXmlEscape();
+        final boolean recognizeUnicodeChars = props.isRecognizeUnicodeChars();
+        final boolean translateSpecialEntities = props.isTranslateSpecialEntities();
+
+        if (s != null) {
+            final int len = s.length();
+            final StringBuilder result = new StringBuilder(len);
+
+            for (int i = 0; i < len; i++) {
+                final char ch = s.charAt(i);
+
+                if (ch == '&') {
+                    if ((advanced || recognizeUnicodeChars) && (i < len - 2) && (s.charAt(i + 1) == '#')) {
+                        final boolean isHex = Character.toLowerCase(s.charAt(i + 2)) == 'x';
+                        int charIndex = i + (isHex ? 3 : 2);
+                        final int radix = isHex ? 16 : 10;
+                        String unicode = "";
+                        while (charIndex < len) {
+                            final char currCh = s.charAt(charIndex);
+                            if (currCh == ';') {
+                                break;
+                            } else if (isValidInt(unicode + currCh, radix)) {
+                                unicode += currCh;
+                                charIndex++;
+                            } else {
+                                charIndex--;
+                                break;
+                            }
+                        }
+
+                        if (isValidInt(unicode, radix)) {
+                            final char unicodeChar = (char) Integer.parseInt(unicode, radix);
+                            if (!isValidXmlChar(unicodeChar)) {
+                                i = charIndex;
+                            } else if (!isReservedXmlChar(unicodeChar)) {
+                                result.append(recognizeUnicodeChars ? String.valueOf(unicodeChar) : "&#" + unicode
+                                        + ";");
+                                i = charIndex;
+                            } else {
+                                i = charIndex;
+                                result.append("&#" + unicode + ";");
+                            }
+                        } else {
+                            result.append("&amp;");
+                        }
+                    } else {
+                        if (translateSpecialEntities) {
+                            // get minimal following sequence required to
+                            // recognize some special entitiy
+                            final String seq = s.substring(i, i
+                                    + Math.min(SpecialEntity.getMaxEntityLength() + 2, len - i));
+                            final int semiIndex = seq.indexOf(';');
+                            if (semiIndex > 0) {
+                                final String entityKey = seq.substring(1, semiIndex);
+                                final SpecialEntity entity = SpecialEntity.getEntity(entityKey);
+                                if (entity != null) {
+                                    result.append(props.isTransSpecialEntitiesToNCR() ? entity.getDecimalNCR() : entity
+                                            .getCharacter());
+                                    i += entityKey.length() + 1;
+                                    continue;
+                                }
+                            }
+                        }
+
+                        if (advanced) {
+                            final String sub = s.substring(i);
+                            boolean isReservedSeq = false;
+                            for (Map.Entry<Character, String> entry : RESERVED_XML_CHARS.entrySet()) {
+                                final String seq = entry.getValue();
+                                if (sub.startsWith(seq)) {
+                                    result.append(isDomCreation ? entry.getKey() : (props.isTransResCharsToNCR() ? "&#"
+                                            + (int) entry.getKey() + ";" : seq));
+                                    i += seq.length() - 1;
+                                    isReservedSeq = true;
+                                    break;
+                                }
+                            }
+                            if (!isReservedSeq) {
+                                result.append(isDomCreation ? "&" : (props.isTransResCharsToNCR() ? "&#" + (int) '&'
+                                        + ";" : RESERVED_XML_CHARS.get('&')));
+                            }
+                            continue;
+                        }
+
+                        result.append("&amp;");
+                    }
+                } else if (isReservedXmlChar(ch)) {
+                    result.append(props.isTransResCharsToNCR() ? "&#" + (int) ch + ";" : (isDomCreation ? ch
+                            : RESERVED_XML_CHARS.get(ch)));
+                } else {
+                    result.append(ch);
+                }
+            }
+
+            return result.toString();
+        }
+
+        return null;
+    }
+
+    /**
+     * Checks whether specified object's string representation is empty string
+     * (containing of only whitespaces).
+     * 
+     * @param object
+     *            Object whose string representation is checked
+     * @return true, if empty string, false otherwise
+     */
+    public static boolean isWhitespaceString(final Object object) {
+        if (object != null) {
+            final String s = object.toString();
+            return s != null && "".equals(s.trim());
+        }
+        return false;
+    }
+
+    /**
+     * Checks if specified character can be part of xml identifier (tag name of
+     * attribute name) and is not standard identifier character.
+     * 
+     * @param ch
+     *            Character to be checked
+     * @return True if it can be part of xml identifier
+     */
+    public static boolean isIdentifierHelperChar(final char ch) {
+        return ':' == ch || '.' == ch || '-' == ch || '_' == ch;
+    }
+
+    /**
+     * Chacks whether specified string can be valid tag name or attribute name
+     * in xml.
+     * 
+     * @param s
+     *            String to be checked
+     * @return True if string is valid xml identifier, false otherwise
+     */
+    public static boolean isValidXmlIdentifier(final String s) {
+        if (s != null) {
+            final int len = s.length();
+            if (len == 0) {
+                return false;
+            }
+            for (int i = 0; i < len; i++) {
+                final char ch = s.charAt(i);
+                if ((i == 0 && !Character.isUnicodeIdentifierStart(ch) && ch != '_')
+                        || (!Character.isUnicodeIdentifierStart(ch) && !Character.isDigit(ch) && !Utils
+                                .isIdentifierHelperChar(ch))) {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @param o
+     * @return True if specified string is null of contains only whitespace
+     *         characters
+     */
+    public static boolean isEmptyString(final Object o) {
+        return o == null || "".equals(o.toString().trim());
+    }
+
+    /**
+     * Evaluates string template for specified map of variables. Template string
+     * can contain dynamic parts in the form of ${VARNAME}. Each such part is
+     * replaced with value of the variable if such exists in the map, or with
+     * empty string otherwise.
+     * 
+     * @param template
+     *            Template string
+     * @param variables
+     *            Map of variables (can be null)
+     * @return Evaluated string
+     */
+    public static String evaluateTemplate(final String template, final Map variables) {
+        if (template == null) {
+            return template;
+        }
+
+        final StringBuilder result = new StringBuilder();
+
+        int startIndex = template.indexOf(VAR_START);
+        int endIndex = -1;
+
+        while (startIndex >= 0 && startIndex < template.length()) {
+            result.append(template.substring(endIndex + 1, startIndex));
+            endIndex = template.indexOf(VAR_END, startIndex);
+
+            if (endIndex > startIndex) {
+                final String varName = template.substring(startIndex + VAR_START.length(), endIndex);
+                final Object resultObj = variables != null ? variables.get(varName.toLowerCase()) : "";
+                result.append(resultObj == null ? "" : resultObj.toString());
+            }
+
+            startIndex = template.indexOf(VAR_START, Math.max(endIndex + VAR_END.length(), startIndex + 1));
+        }
+
+        result.append(template.substring(endIndex + 1));
+
+        return result.toString();
+    }
+
+    public static String[] tokenize(final String s, final String delimiters) {
+        if (s == null) {
+            return new String[] {};
+        }
+
+        final StringTokenizer tokenizer = new StringTokenizer(s, delimiters);
+        final String result[] = new String[tokenizer.countTokens()];
+        int index = 0;
+        while (tokenizer.hasMoreTokens()) {
+            result[index++] = tokenizer.nextToken();
+        }
+
+        return result;
+    }
+
+    public static void updateTagTransformations(final CleanerTransformations transformations, final String key,
+            final String value) {
+        final int index = key.indexOf('.');
+
+        // new tag transformation case (tagname[=destname[,preserveatts]])
+        if (index <= 0) {
+            String destTag = null;
+            boolean preserveSourceAtts = true;
+            if (value != null) {
+                final String[] tokens = tokenize(value, ",;");
+                if (tokens.length > 0) {
+                    destTag = tokens[0];
+                }
+                if (tokens.length > 1) {
+                    preserveSourceAtts = "true".equalsIgnoreCase(tokens[1]) || "yes".equalsIgnoreCase(tokens[1])
+                            || "1".equals(tokens[1]);
+                }
+            }
+            final TagTransformation newTagTrans = new TagTransformation(key, destTag, preserveSourceAtts);
+            transformations.addTransformation(newTagTrans);
+        } else { // attribute transformation description
+            final String[] parts = tokenize(key, ".");
+            final String tagName = parts[0];
+            final TagTransformation trans = transformations.getTransformation(tagName);
+            if (trans != null) {
+                trans.addAttributeTransformation(parts[1], value);
+            }
+        }
+    }
+
+    /**
+     * Checks if specified link is full URL.
+     * 
+     * @param link
+     * @return True, if full URl, false otherwise.
+     */
+    public static boolean isFullUrl(String link) {
+        if (link == null) {
+            return false;
+        }
+        link = link.trim().toLowerCase();
+        return link.startsWith("http://") || link.startsWith("https://") || link.startsWith("file://");
+    }
+
+    /**
+     * Calculates full URL for specified page URL and link which could be full,
+     * absolute or relative like there can be found in A or IMG tags.
+     */
+    public static String fullUrl(String pageUrl, final String link) {
+        if (isFullUrl(link)) {
+            return link;
+        } else if (link != null && link.charAt(0) == '?') {
+            final int qindex = pageUrl.indexOf('?');
+            final int len = pageUrl.length();
+            if (qindex < 0) {
+                return pageUrl + link;
+            } else if (qindex == len - 1) {
+                return pageUrl.substring(0, len - 1) + link;
+            } else {
+                return pageUrl + "&" + link.substring(1);
+            }
+        }
+
+        final boolean isLinkAbsolute = (link.charAt(0) == '/');
+
+        if (!isFullUrl(pageUrl)) {
+            pageUrl = "http://" + pageUrl;
+        }
+
+        final int slashIndex = isLinkAbsolute ? pageUrl.indexOf('/', 8) : pageUrl.lastIndexOf('/');
+        if (slashIndex <= 8) {
+            pageUrl += "/";
+        } else {
+            pageUrl = pageUrl.substring(0, slashIndex + 1);
+        }
+
+        return isLinkAbsolute ? pageUrl + link.substring(1) : pageUrl + link;
+    }
+
+    /**
+     * @param name
+     * @return For xml element name or attribute name returns prefix (part
+     *         before :) or null if there is no prefix
+     */
+    public static String getXmlNSPrefix(final String name) {
+        final int colIndex = name.indexOf(':');
+        if (colIndex > 0) {
+            return name.substring(0, colIndex);
+        }
+
+        return null;
+    }
+
+    /**
+     * @param name
+     * @return For xml element name or attribute name returns name after prefix
+     *         (part after :)
+     */
+    public static String getXmlName(final String name) {
+        final int colIndex = name.indexOf(':');
+        if (colIndex > 0 && colIndex < name.length() - 1) {
+            return name.substring(colIndex + 1);
+        }
+
+        return name;
+    }
+
+}
diff --git a/src/org/htmlcleaner/XPather.java b/src/org/htmlcleaner/XPather.java
new file mode 100644
index 0000000..06dca8a
--- /dev/null
+++ b/src/org/htmlcleaner/XPather.java
@@ -0,0 +1,626 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.util.*;
+
+/**
+ * <p>
+ * Utility for searching cleaned document tree with XPath expressions.
+ * </p>
+ * Examples of supported axes: <code>
+ * <ul>
+ *      <li>//div//a</li>  
+ *      <li>//div//a[@id][@class]</li>  
+ *      <li>/body/*[1]/@type</li>
+ *      <li>//div[3]//a[@id][@href='r/n4']</li>  
+ *      <li>//div[last() >= 4]//./div[position() = last()])[position() > 22]//li[2]//a</li>  
+ *      <li>//div[2]/@*[2]</li>  
+ *      <li>data(//div//a[@id][@class])</li>  
+ *      <li>//p/last()</li>  
+ *      <li>//body//div[3][@class]//span[12.2<position()]/@id</li>  
+ *      <li>data(//a['v' < @id])</li>  
+ * </ul>
+ * </code>
+ */
+public class XPather {
+
+    // array of basic tokens of which XPath expression is made
+    private String tokenArray[];
+
+    /**
+     * Constructor - creates XPather instance with specified XPath expression.
+     * 
+     * @param expression
+     */
+    public XPather(final String expression) {
+        final StringTokenizer tokenizer = new StringTokenizer(expression, "/()[]\"'=<>", true);
+        final int tokenCount = tokenizer.countTokens();
+        tokenArray = new String[tokenCount];
+
+        int index = 0;
+
+        // this is not real XPath compiler, rather simple way to recognize basic
+        // XPaths expressions
+        // and interpret them against some TagNode instance.
+        while (tokenizer.hasMoreTokens()) {
+            tokenArray[index++] = tokenizer.nextToken();
+        }
+    }
+
+    private Collection evaluateAgainst(final Collection object, int from, final int to, final boolean isRecursive,
+            final int position, final int last, final boolean isFilterContext, final Collection filterSource)
+            throws XPatherException {
+        if (from >= 0 && to < tokenArray.length && from <= to) {
+            if (tokenArray[from].trim().length() == 0) {
+                return evaluateAgainst(object, from + 1, to, isRecursive, position, last, isFilterContext, filterSource);
+            } else if (isToken("(", from)) {
+                final int closingBracket = findClosingIndex(from, to);
+                if (closingBracket > 0) {
+                    final Collection value = evaluateAgainst(object, from + 1, closingBracket - 1, false, position,
+                            last, isFilterContext, filterSource);
+                    return evaluateAgainst(value, closingBracket + 1, to, false, position, last, isFilterContext,
+                            filterSource);
+                } else {
+                    throwStandardException();
+                }
+            } else if (isToken("[", from)) {
+                final int closingBracket = findClosingIndex(from, to);
+                if (closingBracket > 0 && object instanceof Collection) {
+                    final Collection value = filterByCondition(object, from + 1, closingBracket - 1);
+                    return evaluateAgainst(value, closingBracket + 1, to, false, position, last, isFilterContext,
+                            filterSource);
+                } else {
+                    throwStandardException();
+                }
+            } else if (isToken("\"", from) || isToken("'", from)) {
+                // string constant
+                final int closingQuote = findClosingIndex(from, to);
+                if (closingQuote > from) {
+                    final Collection value = singleton(flatten(from + 1, closingQuote - 1));
+                    return evaluateAgainst(value, closingQuote + 1, to, false, position, last, isFilterContext,
+                            filterSource);
+                } else {
+                    throwStandardException();
+                }
+            } else if ((isToken("=", from) || isToken("<", from) || isToken(">", from)) && isFilterContext) {
+                // operator inside filter
+                final boolean logicValue;
+                if (isToken("=", from + 1) && (isToken("<", from) || isToken(">", from))) {
+                    final Collection secondObject = evaluateAgainst(filterSource, from + 2, to, false, position, last,
+                            isFilterContext, filterSource);
+                    logicValue = evaluateLogic(object, secondObject, tokenArray[from] + tokenArray[from + 1]);
+                } else {
+                    final Collection secondObject = evaluateAgainst(filterSource, from + 1, to, false, position, last,
+                            isFilterContext, filterSource);
+                    logicValue = evaluateLogic(object, secondObject, tokenArray[from]);
+                }
+                return singleton(Boolean.valueOf(logicValue));
+            } else if (isToken("/", from)) { // children of the node
+                final boolean goRecursive = isToken("/", from + 1);
+                if (goRecursive) {
+                    from++;
+                }
+                if (from < to) {
+                    int toIndex = findClosingIndex(from, to) - 1;
+                    if (toIndex <= from) {
+                        toIndex = to;
+                    }
+                    final Collection value = evaluateAgainst(object, from + 1, toIndex, goRecursive, 1, last,
+                            isFilterContext, filterSource);
+                    return evaluateAgainst(value, toIndex + 1, to, false, 1, last, isFilterContext, filterSource);
+                } else {
+                    throwStandardException();
+                }
+            } else if (isFunctionCall(from, to)) {
+                final int closingBracketIndex = findClosingIndex(from + 1, to);
+                final Collection funcValue = evaluateFunction(object, from, to, position, last, isFilterContext);
+                return evaluateAgainst(funcValue, closingBracketIndex + 1, to, false, 1, last, isFilterContext,
+                        filterSource);
+            } else if (isValidInteger(tokenArray[from])) {
+                final Collection value = singleton(Integer.valueOf(tokenArray[from]));
+                return evaluateAgainst(value, from + 1, to, false, position, last, isFilterContext, filterSource);
+            } else if (isValidDouble(tokenArray[from])) {
+                final Collection value = singleton(new Double(tokenArray[from]));
+                return evaluateAgainst(value, from + 1, to, false, position, last, isFilterContext, filterSource);
+            } else {
+                return getElementsByName(object, from, to, isRecursive, isFilterContext);
+            }
+        } else {
+            return object;
+        }
+
+        throw new XPatherException();
+    }
+
+    /**
+     * Main public method for this class - a way to execute XPath expression
+     * against specified TagNode instance.
+     * 
+     * @param node
+     */
+    public Object[] evaluateAgainstNode(final TagNode node) throws XPatherException {
+        if (node == null) {
+            throw new XPatherException("Cannot evaluate XPath expression against null value!");
+        }
+
+        final Collection collectionResult = evaluateAgainst(singleton(node), 0, tokenArray.length - 1, false, 1, 0,
+                false, null);
+        final Object[] array = new Object[collectionResult.size()];
+
+        final Iterator iterator = collectionResult.iterator();
+        int index = 0;
+        while (iterator.hasNext()) {
+            array[index++] = iterator.next();
+        }
+
+        return array;
+    }
+
+    /**
+     * Evaluates specified function. Currently, following XPath functions are
+     * supported: last, position, text, count, data
+     * 
+     * @param source
+     * @param from
+     * @param to
+     * @param position
+     * @param last
+     * @return Collection as the result of evaluation.
+     */
+    private Collection evaluateFunction(final Collection source, final int from, final int to, final int position,
+            final int last, final boolean isFilterContext) throws XPatherException {
+        final String name = tokenArray[from].trim();
+        final ArrayList result = new ArrayList();
+
+        final int size = source.size();
+        final Iterator iterator = source.iterator();
+        int index = 0;
+        while (iterator.hasNext()) {
+            final Object curr = iterator.next();
+            index++;
+            if ("last".equals(name)) {
+                result.add(Integer.valueOf(isFilterContext ? last : size));
+            } else if ("position".equals(name)) {
+                result.add(Integer.valueOf(isFilterContext ? position : index));
+            } else if ("text".equals(name)) {
+                if (curr instanceof TagNode) {
+                    result.add(((TagNode) curr).getText());
+                } else if (curr instanceof String) {
+                    result.add(curr.toString());
+                }
+            } else if ("count".equals(name)) {
+                final Collection argumentEvaluated = evaluateAgainst(source, from + 2, to - 1, false, position, 0,
+                        isFilterContext, null);
+                result.add(Integer.valueOf(argumentEvaluated.size()));
+            } else if ("data".equals(name)) {
+                final Collection argumentEvaluated = evaluateAgainst(source, from + 2, to - 1, false, position, 0,
+                        isFilterContext, null);
+                final Iterator it = argumentEvaluated.iterator();
+                while (it.hasNext()) {
+                    final Object elem = it.next();
+                    if (elem instanceof TagNode) {
+                        result.add(((TagNode) elem).getText());
+                    } else if (elem instanceof String) {
+                        result.add(elem.toString());
+                    }
+                }
+            } else {
+                throw new XPatherException("Unknown function " + name + "!");
+            }
+        }
+
+        return result;
+    }
+
+    /**
+     * Evaluates logic operation on two collections.
+     * 
+     * @param first
+     * @param second
+     * @param logicOperator
+     * @return Result of logic operation
+     */
+    private boolean evaluateLogic(final Collection first, final Collection second, final String logicOperator) {
+        if (first == null || first.isEmpty() || second == null || second.isEmpty()) {
+            return false;
+        }
+        final Object elem1 = first.iterator().next();
+        final Object elem2 = second.iterator().next();
+        if (elem1 instanceof Number && elem2 instanceof Number) {
+            final double d1 = ((Number) elem1).doubleValue();
+            final double d2 = ((Number) elem2).doubleValue();
+            if ("=".equals(logicOperator)) {
+                return d1 == d2;
+            } else if ("<".equals(logicOperator)) {
+                return d1 < d2;
+            } else if (">".equals(logicOperator)) {
+                return d1 > d2;
+            } else if ("<=".equals(logicOperator)) {
+                return d1 <= d2;
+            } else if (">=".equals(logicOperator)) {
+                return d1 >= d2;
+            }
+        } else {
+            final String s1 = toText(elem1);
+            final String s2 = toText(elem2);
+            final int result = s1.compareTo(s2);
+            if ("=".equals(logicOperator)) {
+                return result == 0;
+            } else if ("<".equals(logicOperator)) {
+                return result < 0;
+            } else if (">".equals(logicOperator)) {
+                return result > 0;
+            } else if ("<=".equals(logicOperator)) {
+                return result <= 0;
+            } else if (">=".equals(logicOperator)) {
+                return result >= 0;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Filter nodes satisfying the condition
+     * 
+     * @param source
+     * @param from
+     * @param to
+     */
+    private final Collection filterByCondition(final Collection source, final int from, final int to)
+            throws XPatherException {
+        final ArrayList result = new ArrayList();
+        final Iterator iterator = source.iterator();
+        int index = 0;
+        final int size = source.size();
+        while (iterator.hasNext()) {
+            final Object curr = iterator.next();
+            index++;
+
+            final ArrayList logicValueList = new ArrayList(evaluateAgainst(singleton(curr), from, to, false, index,
+                    size, true, singleton(curr)));
+            if (logicValueList.size() >= 1) {
+                final Object first = logicValueList.get(0);
+                if (first instanceof Boolean) {
+                    if (((Boolean) first).booleanValue()) {
+                        result.add(curr);
+                    }
+                } else if (first instanceof Integer) {
+                    if (((Integer) first).intValue() == index) {
+                        result.add(curr);
+                    }
+                } else {
+                    result.add(curr);
+                }
+            }
+        }
+        return result;
+    }
+
+    /**
+     * @param from
+     * @param to
+     * @return matching closing index in the token array for the current token,
+     *         or -1 if there is no closing token within expected bounds.
+     */
+    private int findClosingIndex(final int from, final int to) {
+        if (from < to) {
+            final String currToken = tokenArray[from];
+
+            if ("\"".equals(currToken)) {
+                for (int i = from + 1; i <= to; i++) {
+                    if ("\"".equals(tokenArray[i])) {
+                        return i;
+                    }
+                }
+            } else if ("'".equals(currToken)) {
+                for (int i = from + 1; i <= to; i++) {
+                    if ("'".equals(tokenArray[i])) {
+                        return i;
+                    }
+                }
+            } else if ("(".equals(currToken) || "[".equals(currToken) || "/".equals(currToken)) {
+                boolean isQuoteClosed = true;
+                boolean isAposClosed = true;
+                int brackets = "(".equals(currToken) ? 1 : 0;
+                int angleBrackets = "[".equals(currToken) ? 1 : 0;
+                int slashes = "/".equals(currToken) ? 1 : 0;
+                for (int i = from + 1; i <= to; i++) {
+                    if ("\"".equals(tokenArray[i])) {
+                        isQuoteClosed = !isQuoteClosed;
+                    } else if ("'".equals(tokenArray[i])) {
+                        isAposClosed = !isAposClosed;
+                    } else if ("(".equals(tokenArray[i]) && isQuoteClosed && isAposClosed) {
+                        brackets++;
+                    } else if (")".equals(tokenArray[i]) && isQuoteClosed && isAposClosed) {
+                        brackets--;
+                    } else if ("[".equals(tokenArray[i]) && isQuoteClosed && isAposClosed) {
+                        angleBrackets++;
+                    } else if ("]".equals(tokenArray[i]) && isQuoteClosed && isAposClosed) {
+                        angleBrackets--;
+                    } else if ("/".equals(tokenArray[i]) && isQuoteClosed && isAposClosed && brackets == 0
+                            && angleBrackets == 0) {
+                        slashes--;
+                    }
+
+                    if (isQuoteClosed && isAposClosed && brackets == 0 && angleBrackets == 0 && slashes == 0) {
+                        return i;
+                    }
+                }
+            }
+
+        }
+
+        return -1;
+    }
+
+    private String flatten(final int from, final int to) {
+        if (from <= to) {
+            final StringBuffer result = new StringBuffer();
+            for (int i = from; i <= to; i++) {
+                result.append(tokenArray[i]);
+            }
+
+            return result.toString();
+        }
+
+        return "";
+    }
+
+    /**
+     * For the given source collection and specified name, returns collection of
+     * subnodes or attribute values.
+     * 
+     * @param source
+     * @param from
+     * @param to
+     * @param isRecursive
+     * @return Colection of TagNode instances or collection of String instances.
+     */
+    private Collection getElementsByName(final Collection source, final int from, final int to,
+            final boolean isRecursive, final boolean isFilterContext) throws XPatherException {
+        String name = tokenArray[from].trim();
+
+        if (isAtt(name)) {
+            name = name.substring(1);
+            final Collection result = new ArrayList();
+            Collection nodes;
+            if (isRecursive) {
+                nodes = new LinkedHashSet();
+                final Iterator iterator = source.iterator();
+                while (iterator.hasNext()) {
+                    final Object next = iterator.next();
+                    if (next instanceof TagNode) {
+                        final TagNode node = (TagNode) next;
+                        nodes.addAll(node.getAllElementsList(true));
+                    }
+                }
+            } else {
+                nodes = source;
+            }
+
+            final Iterator iterator = nodes.iterator();
+            while (iterator.hasNext()) {
+                final Object next = iterator.next();
+                if (next instanceof TagNode) {
+                    final TagNode node = (TagNode) next;
+                    if ("*".equals(name)) {
+                        result.addAll(evaluateAgainst(node.getAttributes().values(), from + 1, to, false, 1, 1,
+                                isFilterContext, null));
+                    } else {
+                        final String attValue = node.getAttributeByName(name);
+                        if (attValue != null) {
+                            result.addAll(evaluateAgainst(singleton(attValue), from + 1, to, false, 1, 1,
+                                    isFilterContext, null));
+                        }
+                    }
+                } else {
+                    throwStandardException();
+                }
+            }
+            return result;
+        } else {
+            final Collection result = new LinkedHashSet();
+            final Iterator iterator = source.iterator();
+            int index = 0;
+            while (iterator.hasNext()) {
+                final Object next = iterator.next();
+                if (next instanceof TagNode) {
+                    final TagNode node = (TagNode) next;
+                    index++;
+                    final boolean isSelf = ".".equals(name);
+                    final boolean isParent = "..".equals(name);
+                    final boolean isAll = "*".equals(name);
+
+                    final Collection subnodes;
+                    if (isSelf) {
+                        subnodes = singleton(node);
+                    } else if (isParent) {
+                        final TagNode parent = node.getParent();
+                        subnodes = parent != null ? singleton(parent) : new ArrayList();
+                    } else {
+                        subnodes = isAll ? node.getChildTagList() : node.getElementListByName(name, false);
+                    }
+
+                    final LinkedHashSet nodeSet = new LinkedHashSet(subnodes);
+                    final Collection refinedSubnodes = evaluateAgainst(nodeSet, from + 1, to, false, index, nodeSet
+                            .size(), isFilterContext, null);
+
+                    if (isRecursive) {
+                        final List childTags = node.getChildTagList();
+                        if (isSelf || isParent || isAll) {
+                            result.addAll(refinedSubnodes);
+                        }
+                        final Iterator childIterator = childTags.iterator();
+                        while (childIterator.hasNext()) {
+                            final TagNode childTag = (TagNode) childIterator.next();
+                            final Collection childrenByName = getElementsByName(singleton(childTag), from, to,
+                                    isRecursive, isFilterContext);
+                            if (!isSelf && !isParent && !isAll && refinedSubnodes.contains(childTag)) {
+                                result.add(childTag);
+                            }
+                            result.addAll(childrenByName);
+                        }
+                    } else {
+                        result.addAll(refinedSubnodes);
+                    }
+                } else {
+                    throwStandardException();
+                }
+            }
+            return result;
+        }
+    }
+
+    /**
+     * Checks if token is attribute (starts with @)
+     * 
+     * @param token
+     */
+    private boolean isAtt(final String token) {
+        return token != null && token.length() > 1 && token.charAt(0) == '@';
+    }
+
+    /**
+     * Checks if tokens in specified range represents valid function call.
+     * 
+     * @param from
+     * @param to
+     * @return True if it is valid function call, false otherwise.
+     */
+    private boolean isFunctionCall(final int from, final int to) {
+        if (!isIdentifier(tokenArray[from]) && !isToken("(", from + 1)) {
+            return false;
+        }
+
+        return findClosingIndex(from + 1, to) > from + 1;
+    }
+
+    /**
+     * Checks if given string is valid identifier.
+     * 
+     * @param str
+     */
+    private boolean isIdentifier(String str) {
+        if (str == null) {
+            return false;
+        }
+
+        str = str.trim();
+        if (str.length() > 0) {
+            if (!Character.isLetter(str.charAt(0))) {
+                return false;
+            }
+            for (int i = 1; i < str.length(); i++) {
+                final char ch = str.charAt(i);
+                if (ch != '_' && ch != '-' && !Character.isLetterOrDigit(ch)) {
+                    return false;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    private boolean isToken(final String token, final int index) {
+        final int len = tokenArray.length;
+        return index >= 0 && index < len && tokenArray[index].trim().equals(token.trim());
+    }
+
+    private boolean isValidDouble(final String s) {
+        try {
+            Double.parseDouble(s);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+
+    private boolean isValidInteger(final String s) {
+        try {
+            Integer.parseInt(s);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+
+    /**
+     * Creates one-element collection for the specified object.
+     * 
+     * @param element
+     */
+    private Collection<Object> singleton(final Object element) {
+        final ArrayList<Object> result = new ArrayList();
+        result.add(element);
+        return result;
+    }
+
+    private void throwStandardException() throws XPatherException {
+        throw new XPatherException();
+    }
+
+    private String toText(final Object o) {
+        if (o == null) {
+            return "";
+        }
+        if (o instanceof TagNode) {
+            return ((TagNode) o).getText().toString();
+        } else {
+            return o.toString();
+        }
+    }
+
+}
diff --git a/src/org/htmlcleaner/XPatherException.java b/src/org/htmlcleaner/XPatherException.java
new file mode 100644
index 0000000..3db1b22
--- /dev/null
+++ b/src/org/htmlcleaner/XPatherException.java
@@ -0,0 +1,80 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms,
+ with or without modification, are permitted provided that the following
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+/**
+ * <p>
+ * Exception that could occure during XPather evaluation.
+ * </p>
+ */
+public class XPatherException extends Exception {
+    private static final long serialVersionUID = 1L;
+
+    public XPatherException() {
+        this("Error in evaluating XPath expression!");
+    }
+
+    public XPatherException(final String message) {
+        super(message);
+    }
+
+    public XPatherException(final String message, final Throwable cause) {
+        super(message, cause);
+    }
+
+    public XPatherException(final Throwable cause) {
+        super(cause);
+    }
+
+}
diff --git a/src/org/htmlcleaner/XmlSerializer.java b/src/org/htmlcleaner/XmlSerializer.java
new file mode 100644
index 0000000..73e8c95
--- /dev/null
+++ b/src/org/htmlcleaner/XmlSerializer.java
@@ -0,0 +1,254 @@
+/*******************************************************************************
+ * Copyright 2011 Zheng Sun
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+/*  Copyright (c) 2006-2007, Vladimir Nikic
+ All rights reserved.
+
+ Redistribution and use of this software in source and binary forms, 
+ with or without modification, are permitted provided that the following 
+ conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * The name of HtmlCleaner may not be used to endorse or promote 
+ products derived from this software without specific prior
+ written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact Vladimir Nikic by sending e-mail to
+ nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
+ subject line.
+ */
+
+package org.htmlcleaner;
+
+import java.io.*;
+import java.util.*;
+
+/**
+ * <p>
+ * Abstract XML serializer - contains common logic for descendants.
+ * </p>
+ */
+public abstract class XmlSerializer extends Serializer {
+
+    protected XmlSerializer(final CleanerProperties props) {
+        super(props);
+    }
+
+    /**
+     * @deprecated Use writeToStream() instead.
+     */
+    @Deprecated
+    public void writeXmlToStream(final TagNode tagNode, final OutputStream out, final String charset)
+            throws IOException {
+        super.writeToStream(tagNode, out, charset);
+    }
+
+    /**
+     * @deprecated Use writeToStream() instead.
+     */
+    @Deprecated
+    public void writeXmlToStream(final TagNode tagNode, final OutputStream out) throws IOException {
+        super.writeToStream(tagNode, out);
+    }
+
+    /**
+     * @deprecated Use writeToFile() instead.
+     */
+    @Deprecated
+    public void writeXmlToFile(final TagNode tagNode, final String fileName, final String charset) throws IOException {
+        super.writeToFile(tagNode, fileName, charset);
+    }
+
+    /**
+     * @deprecated Use writeToFile() instead.
+     */
+    @Deprecated
+    public void writeXmlToFile(final TagNode tagNode, final String fileName) throws IOException {
+        super.writeToFile(tagNode, fileName);
+    }
+
+    /**
+     * @deprecated Use getAsString() instead.
+     */
+    @Deprecated
+    public String getXmlAsString(final TagNode tagNode, final String charset) throws IOException {
+        return super.getAsString(tagNode, charset);
+    }
+
+    /**
+     * @deprecated Use getAsString() instead.
+     */
+    @Deprecated
+    public String getXmlAsString(final TagNode tagNode) throws IOException {
+        return super.getAsString(tagNode);
+    }
+
+    /**
+     * @deprecated Use write() instead.
+     */
+    @Deprecated
+    public void writeXml(final TagNode tagNode, final Writer writer, final String charset) throws IOException {
+        super.write(tagNode, writer, charset);
+    }
+
+    protected String escapeXml(final String xmlContent) {
+        return Utils.escapeXml(xmlContent, props, false);
+    }
+
+    protected boolean dontEscape(final TagNode tagNode) {
+        return props.isUseCdataForScriptAndStyle() && isScriptOrStyle(tagNode);
+    }
+
+    protected boolean isMinimizedTagSyntax(final TagNode tagNode) {
+        final TagInfo tagInfo = props.getTagInfoProvider().getTagInfo(tagNode.getName());
+        return tagNode.getChildren().size() == 0
+                && (props.isUseEmptyElementTags() || (tagInfo != null && tagInfo.isEmptyTag()));
+    }
+
+    protected void serializeOpenTag(final TagNode tagNode, final Writer writer, final boolean newLine)
+            throws IOException {
+        String tagName = tagNode.getName();
+
+        if (Utils.isEmptyString(tagName)) {
+            return;
+        }
+
+        final boolean nsAware = props.isNamespacesAware();
+
+        Set<String> definedNSPrefixes = null;
+        Set<String> additionalNSDeclNeeded = null;
+
+        final String tagPrefix = Utils.getXmlNSPrefix(tagName);
+        if (tagPrefix != null) {
+            if (nsAware) {
+                definedNSPrefixes = new HashSet<String>();
+                tagNode.collectNamespacePrefixesOnPath(definedNSPrefixes);
+                if (!definedNSPrefixes.contains(tagPrefix)) {
+                    additionalNSDeclNeeded = new TreeSet<String>();
+                    additionalNSDeclNeeded.add(tagPrefix);
+                }
+            } else {
+                tagName = Utils.getXmlName(tagName);
+            }
+        }
+
+        writer.write("<" + tagName);
+
+        // write attributes
+        for (Map.Entry<String, String> entry : tagNode.getAttributes().entrySet()) {
+            String attName = entry.getKey();
+            final String attPrefix = Utils.getXmlNSPrefix(attName);
+            if (attPrefix != null) {
+                if (nsAware) {
+                    // collect used namespace prefixes in attributes in order to
+                    // explicitly define
+                    // ns declaration if needed; otherwise it would be
+                    // ill-formed xml
+                    if (definedNSPrefixes == null) {
+                        definedNSPrefixes = new HashSet<String>();
+                        tagNode.collectNamespacePrefixesOnPath(definedNSPrefixes);
+                    }
+                    if (!definedNSPrefixes.contains(attPrefix)) {
+                        if (additionalNSDeclNeeded == null) {
+                            additionalNSDeclNeeded = new TreeSet<String>();
+                        }
+                        additionalNSDeclNeeded.add(attPrefix);
+                    }
+                } else {
+                    attName = Utils.getXmlName(attName);
+                }
+            }
+            writer.write(" " + attName + "=\"" + escapeXml(entry.getValue()) + "\"");
+        }
+
+        // write namespace declarations
+        if (nsAware) {
+            final Map<String, String> nsDeclarations = tagNode.getNamespaceDeclarations();
+            if (nsDeclarations != null) {
+                for (Map.Entry<String, String> entry : nsDeclarations.entrySet()) {
+                    final String prefix = entry.getKey();
+                    String att = "xmlns";
+                    if (prefix.length() > 0) {
+                        att += ":" + prefix;
+                    }
+                    writer.write(" " + att + "=\"" + escapeXml(entry.getValue()) + "\"");
+                }
+            }
+        }
+
+        // write additional namespace declarations needed for this tag in order
+        // xml to be well-formed
+        if (additionalNSDeclNeeded != null) {
+            for (String prefix : additionalNSDeclNeeded) {
+                writer.write(" xmlns:" + prefix + "=\"" + prefix + "\"");
+            }
+        }
+
+        if (isMinimizedTagSyntax(tagNode)) {
+            writer.write(" />");
+            if (newLine) {
+                writer.write("\n");
+            }
+        } else if (dontEscape(tagNode)) {
+            writer.write("><![CDATA[");
+        } else {
+            writer.write(">");
+        }
+    }
+
+    protected void serializeEndTag(final TagNode tagNode, final Writer writer, final boolean newLine)
+            throws IOException {
+        String tagName = tagNode.getName();
+
+        if (Utils.isEmptyString(tagName)) {
+            return;
+        }
+
+        if (dontEscape(tagNode)) {
+            writer.write("]]>");
+        }
+
+        if (Utils.getXmlNSPrefix(tagName) != null && !props.isNamespacesAware()) {
+            tagName = Utils.getXmlName(tagName);
+        }
+        writer.write("</" + tagName + ">");
+
+        if (newLine) {
+            writer.write("\n");
+        }
+    }
+
+}