Madfox 补丁解析--xml dataisland的部分支持

对xml dataisland的部分支持主要分两步。
第一步需要让解释器可以认识xml标记。前半部分代码都是做这个。
第二步是实现xml数据岛的具体功能，我是通过xbl实现的，就是将一个实现绑定到xml标记上。我只实现了一个函数，selectSingleNode，因为pconline的下载页面也只用到了这一个。
这部分代码只对xml数据岛有作用。不影响其他任何标记。

Index: htmlparser/src/nsElementTable.cpp
===================================================================
--- htmlparser/src/nsElementTable.cpp   (revision 9)
+++ htmlparser/src/nsElementTable.cpp   (revision 10)
@@ -817,6 +817,15 @@
       /*special parents,kids,skip*/       0,0,eHTMLTag_unknown);
 
     Initialize( 
+      /*tag*/                             eHTMLTag_xmldataisland,
+      /*req-parent excl-parent*/          eHTMLTag_unknown,eHTMLTag_unknown,
+      /*rootnodes,endrootnodes*/          &gRootTags,&gRootTags,
+      /*autoclose starttags and endtags*/ 0,0,0,0,
+      /*parent,incl,exclgroups*/          kBlock, kFlowEntity, kNone,
+      /*special props, prop-range*/       0, kDefaultPropRange,
+      /*special parents,kids,skip*/       0,0,eHTMLTag_unknown);
+
+    Initialize( 
       /*tag*/                             eHTMLTag_menu,
       /*req-parent excl-parent*/          eHTMLTag_unknown,eHTMLTag_unknown,
            /*rootnodes,endrootnodes*/          &gRootTags,&gRootTags,
Index: htmlparser/src/nsHTMLTags.cpp
===================================================================
--- htmlparser/src/nsHTMLTags.cpp       (revision 9)
+++ htmlparser/src/nsHTMLTags.cpp       (revision 10)
@@ -174,6 +174,8 @@
   {'m', 'a', 'p', '\0'};
 static const PRUnichar sHTMLTagUnicodeName_marquee[] =
   {'m', 'a', 'r', 'q', 'u', 'e', 'e', '\0'};
+static const PRUnichar sHTMLTagUnicodeName_xmldataisland[] =
+  {'x', 'm', 'l', '\0'};
 static const PRUnichar sHTMLTagUnicodeName_menu[] =
   {'m', 'e', 'n', 'u', '\0'};
 static const PRUnichar sHTMLTagUnicodeName_meta[] =
Index: htmlparser/public/nsHTMLTagList.h
===================================================================
--- htmlparser/public/nsHTMLTagList.h   (revision 9)
+++ htmlparser/public/nsHTMLTagList.h   (revision 10)
@@ -128,6 +128,7 @@
 HTML_TAG(listing, Span)
 HTML_TAG(map, Map)
 HTML_TAG(marquee, Div)
+HTML_TAG(xmldataisland, Div)
 HTML_TAG(menu, Menu)
 HTML_TAG(meta, Meta)
 HTML_TAG(multicol, Span)
Index: browser/installer/unix/browser.jst
===================================================================
--- browser/installer/unix/browser.jst  (revision 9)
+++ browser/installer/unix/browser.jst  (revision 10)
@@ -100,6 +100,7 @@
     registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","comm.jar"),"content/cookie/");
     registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","comm.jar"),"content/wallet/");
     registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","comm.jar"),"content/xbl-marquee/");
+    registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","comm.jar"),"content/xbl-xmldataisland/");
 
     registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","toolkit.jar"),"content/global/");
     registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","toolkit.jar"),"content/global-region/");
Index: browser/installer/windows/browser.jst
===================================================================
--- browser/installer/windows/browser.jst       (revision 9)
+++ browser/installer/windows/browser.jst       (revision 10)
@@ -529,6 +529,7 @@
     registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","comm.jar"),"content/cookie/");
     registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","comm.jar"),"content/wallet/");
     registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","comm.jar"),"content/xbl-marquee/");
+    registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","comm.jar"),"content/xbl-xmldataisland/");
 
     registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","toolkit.jar"),"content/global/");
     registerChrome(CONTENT | DELAYED_CHROME, getFolder("Chrome","toolkit.jar"),"content/global-region/");
Index: layout/html/document/src/quirk.css
===================================================================
--- layout/html/document/src/quirk.css  (revision 9)
+++ layout/html/document/src/quirk.css  (revision 10)
@@ -292,3 +292,12 @@
 input:not([type=image]), textarea {
   -moz-box-sizing: border-box;
 }
+
+/*
+ * support xml data island in quirk mode
+ */
+xmldataisland {
+  display: none;
+  -moz-binding: url('chrome://xbl-xmldataisland/content/xbl-xmldataisland.xml#xmldataisland');
+}
+
Index: layout/html/document/src/xbl-xmldataisland/resources/content/xbl-xmldataisland.xml
===================================================================
--- layout/html/document/src/xbl-xmldataisland/resources/content/xbl-xmldataisland.xml  (revision 0)
+++ layout/html/document/src/xbl-xmldataisland/resources/content/xbl-xmldataisland.xml  (revision 10)
@@ -0,0 +1,74 @@
+<?xml version="1.0"?>
+<!-- ***** BEGIN LICENSE BLOCK *****
+   - Version: MPL 1.1/GPL 2.0/LGPL 2.1
+   -
+   - The contents of this file are subject to the Mozilla Public License Version
+   - 1.1 (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.mozilla.org/MPL/
+   -
+   - Software distributed under the License is distributed on an "AS IS" basis,
+   - WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+   - for the specific language governing rights and limitations under the
+   - License.
+   -
+   - The Original Code is from iamawalrus@gmail.com
+   -
+   - The Initial Developer of the Original Code is
+   - iamawalrus@gmail.com
+   - Portions created by the Initial Developer are Copyright (C) 2002
+   - the Initial Developer. All Rights Reserved.
+   -
+   - Contributor(s):
+   -    iamawalrus@gmail.com
+   -
+   - Alternatively, the contents of this file may be used under the terms of
+   - either the GNU General Public License Version 2 or later (the "GPL"), or
+   - the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+   - in which case the provisions of the GPL or the LGPL are applicable instead
+   - of those above. If you wish to allow use of your version of this file only
+   - under the terms of either the GPL or the LGPL, and not to allow others to
+   - use your version of this file under the terms of the MPL, indicate your
+   - decision by deleting the provisions above and replace them with the notice
+   - and other provisions required by the LGPL or the GPL. If you do not delete
+   - the provisions above, a recipient may use your version of this file under
+   - the terms of any one of the MPL, the GPL or the LGPL.
+   -
+   - ***** END LICENSE BLOCK ***** -->
+
+<bindings id="xmldataislandBindings"
+          xmlns="http://www.mozilla.org/xbl"
+          xmlns:html="http://www.w3.org/1999/xhtml"
+          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+          xmlns:xbl="http://www.mozilla.org/xbl">
+
+
+    <binding id="xmldataisland" inheritstyle="false">
+        <content>
+        </content>
+        <implementation>
+        <field name="innerDoc"/>
+        <method name="selectSingleNode">
+            <parameter name="aPath"/>
+            <body>
+            function DumyNode(node){
+                this.text=node.textContent;
+            }
+            var result = this.innerDoc.evaluate(aPath.toLowerCase(),
+                    this.innerDoc, null, 9, null).singleNodeValue;
+            var rtv = new DumyNode(result);
+            return rtv;
+            </body>
+        </method>
+
+        <constructor>
+              <![CDATA[
+              var str = this.innerHTML;
+              var parser = new DOMParser;
+              this.innerDoc = parser.parseFromString(str, "text/xml");
+              ]]>
+        </constructor>
+      </implementation>
+  </binding>
+
+</bindings>