libexpat: a simple xml parser library, used by X11 and some ports.

27 files changed, 15477 insertions, 0 deletions

diff --git a/lib/libexpat/COPYING b/lib/libexpat/COPYING
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+Copyright (c) 1998, 1999, 2000 Thai Open Source Software Center Ltd
+                               and Clark Cooper
+Copyright (c) 2001, 2002 Expat maintainers.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/lib/libexpat/Changes b/lib/libexpat/Changes
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+Release 1.95.6 Tue Jan 28 2003
+        - Added XML_FreeContentModel().
+        - Added XML_MemMalloc(), XML_MemRealloc(), XML_MemFree().
+        - Fixed a variety of bugs: see SF issues 615606, 616863,
+          618199, 653180, 673791.
+        - Enhanced the regression test suite.
+        - Man page improvements: includes SF issue 632146.
+
+Release 1.95.5 Fri Sep 6 2002
+        - Added XML_UseForeignDTD() for improved SAX2 support.
+        - Added XML_GetFeatureList().
+        - Defined XML_Bool type and the values XML_TRUE and XML_FALSE.
+        - Use an incomplete struct instead of a void* for the parser
+          (may not retain).
+        - Fixed UTF-8 decoding bug that caused legal UTF-8 to be rejected.
+        - Finally fixed bug where default handler would report DTD
+          events that were already handled by another handler.
+          Initial patch contributed by Darryl Miles.
+        - Removed unnecessary DllMain() function that caused static
+          linking into a DLL to be difficult.
+        - Added VC++ projects for building static libraries.
+        - Reduced line-length for all source code and headers to be
+          no longer than 80 characters, to help with AS/400 support.
+        - Reduced memory copying during parsing (SF patch #600964).
+        - Fixed a variety of bugs: see SF issues 580793, 434664,
+          483514, 580503, 581069, 584041, 584183, 584832, 585537,
+          596555, 596678, 598352, 598944, 599715, 600479, 600971.
+
+Release 1.95.4 Fri Jul 12 2002
+        - Added support for VMS, contributed by Craig Berry.  See
+          vms/README.vms for more information.
+        - Added Mac OS (classic) support, with a makefile for MPW,
+          contributed by Thomas Wegner and Daryle Walker.
+        - Added Borland C++ Builder 5 / BCC 5.5 support, contributed
+          by Patrick McConnell (SF patch #538032).
+        - Fixed a variety of bugs: see SF issues 441449, 563184,
+          564342, 566334, 566901, 569461, 570263, 575168, 579196.
+        - Made skippedEntityHandler conform to SAX2 (see source comment)
+        - Re-implemented WFC: Entity Declared from XML 1.0 spec and
+          added a new error "entity declared in parameter entity":
+          see SF bug report 569461 and SF patch 578161
+        - Re-implemented section 5.1 from XML 1.0 spec:
+          see SF bug report 570263 and SF patch 578161
+
+Release 1.95.3 Mon Jun 3 2002
+        - Added a project to the MSVC workspace to create a wchar_t
+          version of the library; the DLLs are named libexpatw.dll.
+        - Changed the name of the Windows DLLs from expat.dll to
+          libexpat.dll; this fixes SF bug #432456.
+        - Added the XML_ParserReset() API function.
+        - Fixed XML_SetReturnNSTriplet() to work for element names.
+        - Made the XML_UNICODE builds usable (thanks, Karl!).
+        - Allow xmlwf to read from standard input.
+        - Install a man page for xmlwf on Unix systems.
+        - Fixed many bugs; see SF bug reports 231864, 461380, 464837,
+          466885, 469226, 477667, 484419, 487840, 494749, 496505,
+          547350.  Other bugs which we can't test as easily may also
+          have been fixed, especially in the area of build support.
+
+Release 1.95.2 Fri Jul 27 2001
+        - More changes to make MSVC happy with the build; add a single
+          workspace to support both the library and xmlwf application.
+        - Added a Windows installer for Windows users; includes
+          xmlwf.exe.
+        - Added compile-time constants that can be used to determine the
+          Expat version
+        - Removed a lot of GNU-specific dependencies to aide portability
+          among the various Unix flavors.
+        - Fix the UTF-8 BOM bug.
+        - Cleaned up warning messages for several compilers.
+        - Added the -Wall, -Wstrict-prototypes options for GCC.
+
+Release 1.95.1 Sun Oct 22 15:11:36 EDT 2000
+        - Changes to get expat to build under Microsoft compiler
+        - Removed all aborts and instead return an UNEXPECTED_STATE error.
+        - Fixed a bug where a stray '%' in an entity value would cause an
+          abort.
+        - Defined XML_SetEndNamespaceDeclHandler. Thanks to Darryl Miles for
+          finding this oversight.
+        - Changed default patterns in lib/Makefile.in to fit non-GNU makes
+          Thanks to robin@unrated.net for reporting and providing an
+          account to test on.
+        - The reference had the wrong label for XML_SetStartNamespaceDecl.
+          Reported by an anonymous user.
+
+Release 1.95.0 Fri Sep 29 2000
+        - XML_ParserCreate_MM
+                Allows you to set a memory management suite to replace the
+                standard malloc,realloc, and free.
+        - XML_SetReturnNSTriplet
+                If you turn this feature on when namespace processing is in
+                effect, then qualified, prefixed element and attribute names
+                are returned as "uri|name|prefix" where '|' is whatever
+                separator character is used in namespace processing.
+        - Merged in features from perl-expat
+                o XML_SetElementDeclHandler
+                o XML_SetAttlistDeclHandler
+                o XML_SetXmlDeclHandler
+                o XML_SetEntityDeclHandler
+                o StartDoctypeDeclHandler takes 3 additional parameters:
+                        sysid, pubid, has_internal_subset
+                o Many paired handler setters (like XML_SetElementHandler)
+                  now have corresponding individual handler setters
+                o XML_GetInputContext for getting the input context of
+                  the current parse position.
+        - Added reference material
+        - Packaged into a distribution that builds a sharable library
diff --git a/lib/libexpat/README b/lib/libexpat/README
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+
+                        Expat, Release 1.95.6
+
+This is Expat, a C library for parsing XML, written by James Clark.
+Expat is a stream-oriented XML parser.  This means that you register
+handlers with the parser before starting the parse.  These handlers
+are called when the parser discovers the associated structures in the
+document being parsed.  A start tag is an example of the kind of
+structures for which you may register handlers.
+
+Windows users should use the expat_win32bin package, which includes
+both precompiled libraries and executalbes, and source code for
+developers.
+
+Expat is free software.  You may copy, distribute, and modify it under
+the terms of the License contained in the file COPYING distributed
+with this package.  This license is the same as the MIT/X Consortium
+license.
+
+Versions of Expat that have an odd minor version (the middle number in
+the release above), are development releases and should be considered
+as beta software.  Releases with even minor version numbers are
+intended to be production grade software.
+
+If you are building Expat from a check-out from the CVS repository,
+you need to run a script that generates the configure script using the
+GNU autoconf and libtool tools.  To do this, you need to have
+autoconf 2.52 or newer and libtool 1.4 or newer.  Run the script like
+this:
+
+        ./buildconf.sh
+
+Once this has been done, follow the same instructions as for building
+from a source distribution.
+
+To build Expat from a source distribution, you first run the
+configuration shell script in the top level distribution directory:
+
+        ./configure
+
+There are many options which you may provide to configure (which you
+can discover by running configure with the --help option).  But the
+one of most interest is the one that sets the installation directory.
+By default, the configure script will set things up to install
+libexpat into /usr/local/lib, expat.h into /usr/local/include, and
+xmlwf into /usr/local/bin.  If, for example, you'd prefer to install
+into /home/me/mystuff/lib, /home/me/mystuff/include, and
+/home/me/mystuff/bin, you can tell configure about that with:
+
+        ./configure --prefix=/home/me/mystuff
+
+After running the configure script, the "make" command will build
+things and "make install" will install things into their proper
+location.  Note that you need to have write permission into the
+directories into which things will be installed.
+
+If you are interested in building Expat to provide document
+information in UTF-16 rather than the default UTF-8, following these
+instructions:
+
+        1. For UTF-16 output as unsigned short (and version/error
+           strings as char), run:
+
+               ./configure CPPFLAGS=-DXML_UNICODE
+
+           For UTF-16 output as wchar_t (incl. version/error strings),
+           run:
+
+               ./configure CFLAGS="-g -O2 -fshort-wchar" \
+                           CPPFLAGS=-DXML_UNICODE_WCHAR_T
+
+        2. Edit the MakeFile, changing:
+
+               LIBRARY = libexpat.la
+
+           to:
+
+               LIBRARY = libexpatw.la
+
+           (Note the additional "w" in the library name.)
+
+        3. Run "make buildlib" (which builds the library only).
+
+        4. Run "make installlib" (which installs the library only).
+
+Note for Solaris users:  The "ar" command is usually located in
+"/usr/ccs/bin", which is not in the default PATH.  You will need to
+add this to your path for the "make" command, and probably also switch
+to GNU make (the "make" found in /usr/ccs/bin does not seem to work
+properly -- appearantly it does not understand .PHONY directives).  If
+you're using ksh or bash, use this command to build:
+
+        PATH=/usr/ccs/bin:$PATH make
+
+When using Expat with a project using autoconf for configuration, you
+can use the probing macro in conftools/expat.m4 to determine how to
+include Expat.  See the comments at the top of that file for more
+information.
+
+A reference manual is available in the file doc/reference.html in this
+distribution.
+
+The homepage for this project is http://www.libexpat.org/.  There
+are links there to connect you to the bug reports page.  If you need
+to report a bug when you don't have access to a browser, you may also
+send a bug report by email to expat-bugs@mail.libexpat.org.
+
+Discussion related to the direction of future expat development takes
+place on expat-discuss@mail.libexpat.org.  Archives of this list and
+other Expat-related lists may be found at:
+
+        http://mail.libexpat.org/mailman-21/listinfo/
diff --git a/lib/libexpat/doc/reference.html b/lib/libexpat/doc/reference.html
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+<?xml version="1.0" encoding="iso-8859-1"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+                      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html>
+<head>
+<!-- Copyright 1999,2000 Clark Cooper <coopercc@netheaven.com>
+     All rights reserved.
+     This is free software. You may distribute or modify according to
+     the terms of the MIT/X License -->
+  <title>Expat XML Parser</title>
+  <meta name="author" content="Clark Cooper, coopercc@netheaven.com" />
+  <meta http-equiv="Content-Style-Type" content="text/css" />
+  <link href="style.css" rel="stylesheet" type="text/css" />
+</head>
+<body>
+<h1>Expat XML Parser</h1>
+
+<p>Expat is a library, written in C, for parsing XML documents. It's
+the underlying XML parser for the open source Mozilla project, Perl's
+<code>XML::Parser</code>, Python's <code>xml.parsers.expat</code>, and
+other open-source XML parsers.</p>
+
+<p>This library is the creation of James Clark, who's also given us
+groff (an nroff look-alike), Jade (an implemention of ISO's DSSSL
+stylesheet language for SGML), XP (a Java XML parser package), XT (a
+Java XSL engine).  James was also the technical lead on the XML
+Working Group at W3C that produced the XML specification.</p>
+
+<p>This is free software, licensed under the <a
+href="../COPYING">MIT/X Consortium license</a>. You may download it
+from <a href="http://www.libexpat.org/">the Expat home page</a>.
+</p>
+
+<p>The bulk of this document was originally commissioned as an article by
+<a href="http://www.xml.com/">XML.com</a>. They graciously allowed
+Clark Cooper to retain copyright and to distribute it with Expat.</p>
+
+<hr />
+<h2>Table of Contents</h2>
+<ul>
+  <li><a href="#overview">Overview</a></li>
+  <li><a href="#building">Building and Installing</a></li>
+  <li><a href="#using">Using Expat</a></li>
+  <li><a href="#reference">Reference</a>
+  <ul>
+    <li><a href="#creation">Parser Creation Functions</a>
+    <ul>
+      <li><a href="#XML_ParserCreate">XML_ParserCreate</a></li>
+      <li><a href="#XML_ParserCreateNS">XML_ParserCreateNS</a></li>
+      <li><a href="#XML_ParserCreate_MM">XML_ParserCreate_MM</a></li>
+      <li><a href="#XML_ExternalEntityParserCreate">XML_ExternalEntityParserCreate</a></li>
+      <li><a href="#XML_ParserFree">XML_ParserFree</a></li>
+      <li><a href="#XML_ParserReset">XML_ParserReset</a></li>
+    </ul>
+    </li>
+    <li><a href="#parsing">Parsing Functions</a>
+    <ul>
+      <li><a href="#XML_Parse">XML_Parse</a></li>
+      <li><a href="#XML_ParseBuffer">XML_ParseBuffer</a></li>
+      <li><a href="#XML_GetBuffer">XML_GetBuffer</a></li>
+    </ul>
+    </li>
+    <li><a href="#setting">Handler Setting Functions</a>
+    <ul>
+      <li><a href="#XML_SetStartElementHandler">XML_SetStartElementHandler</a></li>
+      <li><a href="#XML_SetEndElementHandler">XML_SetEndElementHandler</a></li>
+      <li><a href="#XML_SetElementHandler">XML_SetElementHandler</a></li>
+      <li><a href="#XML_SetCharacterDataHandler">XML_SetCharacterDataHandler</a></li>
+      <li><a href="#XML_SetProcessingInstructionHandler">XML_SetProcessingInstructionHandler</a></li>
+      <li><a href="#XML_SetCommentHandler">XML_SetCommentHandler</a></li>
+      <li><a href="#XML_SetStartCdataSectionHandler">XML_SetStartCdataSectionHandler</a></li>
+      <li><a href="#XML_SetEndCdataSectionHandler">XML_SetEndCdataSectionHandler</a></li>
+      <li><a href="#XML_SetCdataSectionHandler">XML_SetCdataSectionHandler</a></li>
+      <li><a href="#XML_SetDefaultHandler">XML_SetDefaultHandler</a></li>
+      <li><a href="#XML_SetDefaultHandlerExpand">XML_SetDefaultHandlerExpand</a></li>
+      <li><a href="#XML_SetExternalEntityRefHandler">XML_SetExternalEntityRefHandler</a></li>
+      <li><a href="#XML_SetExternalEntityRefHandlerArg">XML_SetExternalEntityRefHandlerArg</a></li>
+      <li><a href="#XML_SetSkippedEntityHandler">XML_SetSkippedEntityHandler</a></li>
+      <li><a href="#XML_SetUnknownEncodingHandler">XML_SetUnknownEncodingHandler</a></li>
+      <li><a href="#XML_SetStartNamespaceDeclHandler">XML_SetStartNamespaceDeclHandler</a></li>
+      <li><a href="#XML_SetEndNamespaceDeclHandler">XML_SetEndNamespaceDeclHandler</a></li>
+      <li><a href="#XML_SetNamespaceDeclHandler">XML_SetNamespaceDeclHandler</a></li>
+      <li><a href="#XML_SetXmlDeclHandler">XML_SetXmlDeclHandler</a></li>		  
+      <li><a href="#XML_SetStartDoctypeDeclHandler">XML_SetStartDoctypeDeclHandler</a></li>
+      <li><a href="#XML_SetEndDoctypeDeclHandler">XML_SetEndDoctypeDeclHandler</a></li>
+      <li><a href="#XML_SetDoctypeDeclHandler">XML_SetDoctypeDeclHandler</a></li>
+      <li><a href="#XML_SetElementDeclHandler">XML_SetElementDeclHandler</a></li>
+      <li><a href="#XML_SetAttlistDeclHandler">XML_SetAttlistDeclHandler</a></li>
+      <li><a href="#XML_SetEntityDeclHandler">XML_SetEntityDeclHandler</a></li>
+      <li><a href="#XML_SetUnparsedEntityDeclHandler">XML_SetUnparsedEntityDeclHandler</a></li>
+      <li><a href="#XML_SetNotationDeclHandler">XML_SetNotationDeclHandler</a></li>
+      <li><a href="#XML_SetNotStandaloneHandler">XML_SetNotStandaloneHandler</a></li>
+    </ul>
+    </li>
+    <li><a href="#position">Parse Position and Error Reporting Functions</a>
+    <ul>
+      <li><a href="#XML_GetErrorCode">XML_GetErrorCode</a></li>
+      <li><a href="#XML_ErrorString">XML_ErrorString</a></li>
+      <li><a href="#XML_GetCurrentByteIndex">XML_GetCurrentByteIndex</a></li>
+      <li><a href="#XML_GetCurrentLineNumber">XML_GetCurrentLineNumber</a></li>
+      <li><a href="#XML_GetCurrentColumnNumber">XML_GetCurrentColumnNumber</a></li>
+      <li><a href="#XML_GetCurrentByteCount">XML_GetCurrentByteCount</a></li>
+      <li><a href="#XML_GetInputContext">XML_GetInputContext</a></li>
+    </ul>
+    </li>
+    <li><a href="#miscellaneous">Miscellaneous Functions</a>
+    <ul>
+      <li><a href="#XML_SetUserData">XML_SetUserData</a></li>
+      <li><a href="#XML_GetUserData">XML_GetUserData</a></li>
+      <li><a href="#XML_UseParserAsHandlerArg">XML_UseParserAsHandlerArg</a></li>
+      <li><a href="#XML_SetBase">XML_SetBase</a></li>
+      <li><a href="#XML_GetBase">XML_GetBase</a></li>
+      <li><a href="#XML_GetSpecifiedAttributeCount">XML_GetSpecifiedAttributeCount</a></li>
+      <li><a href="#XML_GetIdAttributeIndex">XML_GetIdAttributeIndex</a></li>
+      <li><a href="#XML_SetEncoding">XML_SetEncoding</a></li>
+      <li><a href="#XML_SetParamEntityParsing">XML_SetParamEntityParsing</a></li>
+      <li><a href="#XML_UseForeignDTD">XML_UseForeignDTD</a></li>
+      <li><a href="#XML_SetReturnNSTriplet">XML_SetReturnNSTriplet</a></li>
+      <li><a href="#XML_DefaultCurrent">XML_DefaultCurrent</a></li>
+      <li><a href="#XML_ExpatVersion">XML_ExpatVersion</a></li>
+      <li><a href="#XML_ExpatVersionInfo">XML_ExpatVersionInfo</a></li>
+      <li><a href="#XML_GetFeatureList">XML_GetFeatureList</a></li>
+      <li><a href="#XML_FreeContentModel">XML_FreeContentModel</a></li>
+      <li><a href="#XML_MemMalloc">XML_MemMalloc</a></li>
+      <li><a href="#XML_MemRealloc">XML_MemRealloc</a></li>
+      <li><a href="#XML_MemFree">XML_MemFree</a></li>
+    </ul>
+    </li>
+  </ul>  
+  </li>
+</ul>
+
+<hr />
+<h2><a name="overview">Overview</a></h2>
+
+<p>Expat is a stream-oriented parser. You register callback (or
+handler) functions with the parser and then start feeding it the
+document.  As the parser recognizes parts of the document, it will
+call the appropriate handler for that part (if you've registered one.) 
+The document is fed to the parser in pieces, so you can start parsing
+before you have all the document. This also allows you to parse really
+huge documents that won't fit into memory.</p>
+
+<p>Expat can be intimidating due to the many kinds of handlers and
+options you can set. But you only need to learn four functions in
+order to do 90% of what you'll want to do with it:</p>
+
+<dl>
+
+<dt><code><a href= "#XML_ParserCreate"
+             >XML_ParserCreate</a></code></dt>
+  <dd>Create a new parser object.</dd>
+
+<dt><code><a href= "#XML_SetElementHandler"
+             >XML_SetElementHandler</a></code></dt>
+  <dd>Set handlers for start and end tags.</dd>
+
+<dt><code><a href= "#XML_SetCharacterDataHandler"
+             >XML_SetCharacterDataHandler</a></code></dt>
+  <dd>Set handler for text.</dd>
+
+<dt><code><a href= "#XML_Parse"
+             >XML_Parse</a></code></dt>
+  <dd>Pass a buffer full of document to the parser</dd>
+</dl>
+
+<p>These functions and others are described in the <a
+href="#reference">reference</a> part of this document. The reference
+section also describes in detail the parameters passed to the
+different types of handlers.</p>
+
+<p>Let's look at a very simple example program that only uses 3 of the
+above functions (it doesn't need to set a character handler.) The
+program <a href="../examples/outline.c">outline.c</a> prints an
+element outline, indenting child elements to distinguish them from the
+parent element that contains them. The start handler does all the
+work.  It prints two indenting spaces for every level of ancestor
+elements, then it prints the element and attribute
+information. Finally it increments the global <code>Depth</code>
+variable.</p>
+
+<pre class="eg">
+int Depth;
+
+void
+start(void *data, const char *el, const char **attr) {
+  int i;
+
+  for (i = 0; i &lt; Depth; i++)
+    printf("  ");
+
+  printf("%s", el);
+
+  for (i = 0; attr[i]; i += 2) {
+    printf(" %s='%s'", attr[i], attr[i + 1]);
+  }
+
+  printf("\n");
+  Depth++;
+}  /* End of start handler */
+</pre>
+
+<p>The end tag simply does the bookkeeping work of decrementing
+<code>Depth</code>.</p>
+<pre class="eg">
+void
+end(void *data, const char *el) {
+  Depth--;
+}  /* End of end handler */
+</pre>
+
+<p>After creating the parser, the main program just has the job of
+shoveling the document to the parser so that it can do its work.</p>
+
+<hr />
+<h2><a name="building">Building and Installing Expat</a></h2>
+
+<p>The Expat distribution comes as a compressed (with GNU gzip) tar
+file.  You may download the latest version from <a href=
+"http://sourceforge.net/projects/expat/" >Source Forge</a>.  After
+unpacking this, cd into the directory. Then follow either the Win32
+directions or Unix directions below.</p>
+
+<h3>Building under Win32</h3>
+
+<p>If you're using the GNU compiler under cygwin, follow the Unix
+directions in the next section. Otherwise if you have Microsoft's
+Developer Studio installed, then from Windows Explorer double-click on
+"expat.dsp" in the lib directory and build and install in the usual
+manner.</p>
+
+<p>Alternatively, you may download the Win32 binary package that
+contains the "expat.h" include file and a pre-built DLL.</p>
+
+<h3>Building under Unix (or GNU)</h3>
+
+<p>First you'll need to run the configure shell script in order to
+configure the Makefiles and headers for your system.</p>
+
+<p>If you're happy with all the defaults that configure picks for you,
+and you have permission on your system to install into /usr/local, you
+can install Expat with this sequence of commands:</p>
+
+<pre class="eg">
+   ./configure
+   make
+   make install
+</pre>
+
+<p>There are some options that you can provide to this script, but the
+only one we'll mention here is the <code>--prefix</code> option. You
+can find out all the options available by running configure with just
+the <code>--help</code> option.</p>
+
+<p>By default, the configure script sets things up so that the library
+gets installed in <code>/usr/local/lib</code> and the associated
+header file in <code>/usr/local/include</code>.  But if you were to
+give the option, <code>--prefix=/home/me/mystuff</code>, then the
+library and header would get installed in
+<code>/home/me/mystuff/lib</code> and
+<code>/home/me/mystuff/include</code> respectively.</p>
+
+<hr />
+<h2><a name="using">Using Expat</a></h2>
+
+<h3>Compiling and Linking Against Expat</h3>
+
+<p>Unless you installed Expat in a location not expected by your
+compiler and linker, all you have to do to use Expat in your programs
+is to include the Expat header (<code>#include &lt;expat.h&gt;</code>)
+in your files that make calls to it and to tell the linker that it
+needs to link against the Expat library.  On Unix systems, this would
+usually be done with the <code>-lexpat</code> argument.  Otherwise,
+you'll need to tell the compiler where to look for the Expat header
+and the linker where to find the Expat library.  You may also need to
+take steps to tell the operating system where to find this libary at
+run time.</p>
+
+<p>On a Unix-based system, here's what a Makefile might look like when
+Expat is installed in a standard location:</p>
+
+<pre class="eg">
+CC=cc
+LDFLAGS=
+LIBS= -lexpat
+xmlapp: xmlapp.o
+        $(CC) $(LDFLAGS) -o xmlapp xmlapp.o $(LIBS)
+</pre>
+
+<p>If you installed Expat in, say, <code>/home/me/mystuff</code>, then
+the Makefile would look like this:</p>
+
+<pre class="eg">
+CC=cc
+CFLAGS= -I/home/me/mystuff/include
+LDFLAGS=
+LIBS= -L/home/me/mystuff/lib -lexpat
+xmlapp: xmlapp.o
+        $(CC) $(LDFLAGS) -o xmlapp xmlapp.o $(LIBS)
+</pre>
+
+<p>You'd also have to set the environment variable
+<code>LD_LIBRARY_PATH</code> to <code>/home/me/mystuff/lib</code> (or
+to <code>${LD_LIBRARY_PATH}:/home/me/mystuff/lib</code> if
+LD_LIBRARY_PATH already has some directories in it) in order to run
+your application.</p>
+
+<h3>Expat Basics</h3>
+
+<p>As we saw in the example in the overview, the first step in parsing
+an XML document with Expat is to create a parser object. There are <a
+href="#creation">three functions</a> in the Expat API for creating a
+parser object.  However, only two of these (<code><a href=
+"#XML_ParserCreate" >XML_ParserCreate</a></code> and <code><a href=
+"#XML_ParserCreateNS" >XML_ParserCreateNS</a></code>) can be used for
+constructing a parser for a top-level document.  The object returned
+by these functions is an opaque pointer (i.e. "expat.h" declares it as
+void *) to data with further internal structure. In order to free the
+memory associated with this object you must call <code><a href=
+"#XML_ParserFree" >XML_ParserFree</a></code>. Note that if you have
+provided any <a href="userdata">user data</a> that gets stored in the
+parser, then your application is responsible for freeing it prior to
+calling <code>XML_ParserFree</code>.</p>
+
+<p>The objects returned by the parser creation functions are good for
+parsing only one XML document or external parsed entity. If your
+application needs to parse many XML documents, then it needs to create
+a parser object for each one. The best way to deal with this is to
+create a higher level object that contains all the default
+initialization you want for your parser objects.</p>
+
+<p>Walking through a document hierarchy with a stream oriented parser
+will require a good stack mechanism in order to keep track of current
+context.  For instance, to answer the simple question, "What element
+does this text belong to?" requires a stack, since the parser may have
+descended into other elements that are children of the current one and
+has encountered this text on the way out.</p>
+
+<p>The things you're likely to want to keep on a stack are the
+currently opened element and it's attributes. You push this
+information onto the stack in the start handler and you pop it off in
+the end handler.</p>
+
+<p>For some tasks, it is sufficient to just keep information on what
+the depth of the stack is (or would be if you had one.) The outline
+program shown above presents one example. Another such task would be
+skipping over a complete element. When you see the start tag for the
+element you want to skip, you set a skip flag and record the depth at
+which the element started.  When the end tag handler encounters the
+same depth, the skipped element has ended and the flag may be
+cleared. If you follow the convention that the root element starts at
+1, then you can use the same variable for skip flag and skip
+depth.</p>
+
+<pre class="eg">
+void
+init_info(Parseinfo *info) {
+  info->skip = 0;
+  info->depth = 1;
+  /* Other initializations here */
+}  /* End of init_info */
+
+void
+rawstart(void *data, const char *el, const char **attr) {
+  Parseinfo *inf = (Parseinfo *) data;
+
+  if (! inf->skip) {
+    if (should_skip(inf, el, attr)) {
+      inf->skip = inf->depth;
+    }
+    else
+      start(inf, el, attr);     /* This does rest of start handling */
+  }
+
+  inf->depth++;
+}  /* End of rawstart */
+
+void
+rawend(void *data, const char *el) {
+  Parseinfo *inf = (Parseinfo *) data;
+
+  inf->depth--;
+
+  if (! inf->skip)
+    end(inf, el);              /* This does rest of end handling */
+
+  if (inf->skip == inf->depth)
+    inf->skip = 0;
+}  /* End rawend */
+</pre>
+
+<p>Notice in the above example the difference in how depth is
+manipulated in the start and end handlers. The end tag handler should
+be the mirror image of the start tag handler. This is necessary to
+properly model containment. Since, in the start tag handler, we
+incremented depth <em>after</em> the main body of start tag code, then
+in the end handler, we need to manipulate it <em>before</em> the main
+body.  If we'd decided to increment it first thing in the start
+handler, then we'd have had to decrement it last thing in the end
+handler.</p>
+
+<h3 id="userdata">Communicating between handlers</h3>
+
+<p>In order to be able to pass information between different handlers
+without using globals, you'll need to define a data structure to hold
+the shared variables. You can then tell Expat (with the <code><a href=
+"#XML_SetUserData" >XML_SetUserData</a></code> function) to pass a
+pointer to this structure to the handlers. This is typically the first
+argument received by most handlers.</p>
+
+<h3>XML Version</h3>
+
+<p>Expat is an XML 1.0 parser, and as such never complains based on
+the value of the <code>version</code> pseudo-attribute in the XML
+declaration, if present.</p>
+
+<p>If an application needs to check the version number (to support
+alternate processing), it should use the <code><a href=
+"#XML_SetXmlDeclHandler" >XML_SetXmlDeclHandler</a></code> function to
+set a handler that uses the information in the XML declaration to
+determine what to do.  This example shows how to check that only a
+version number of <code>"1.0"</code> is accepted:</p>
+
+<pre class="eg">
+static int wrong_version;
+static XML_Parser parser;
+
+static void
+xmldecl_handler(void            *userData,
+                const XML_Char  *version,
+                const XML_Char  *encoding,
+                int              standalone)
+{
+  static const XML_Char Version_1_0[] = {'1', '.', '0', 0};
+
+  int i;
+
+  for (i = 0; i &lt; (sizeof(Version_1_0) / sizeof(Version_1_0[0])); ++i) {
+    if (version[i] != Version_1_0[i]) {
+      wrong_version = 1;
+      /* also clear all other handlers: */
+      XML_SetCharacterDataHandler(parser, NULL);
+      ...
+      return;
+    }
+  }
+  ...
+}
+</pre>
+
+<h3>Namespace Processing</h3>
+
+<p>When the parser is created using the <code><a href=
+"#XML_ParserCreateNS" >XML_ParserCreateNS</a></code>, function, Expat
+performs namespace processing. Under namespace processing, Expat
+consumes <code>xmlns</code> and <code>xmlns:...</code> attributes,
+which declare namespaces for the scope of the element in which they
+occur. This means that your start handler will not see these
+attributes.  Your application can still be informed of these
+declarations by setting namespace declaration handlers with <a href=
+"#XML_SetNamespaceDeclHandler"
+><code>XML_SetNamespaceDeclHandler</code></a>.</p>
+
+<p>Element type and attribute names that belong to a given namespace
+are passed to the appropriate handler in expanded form. By default
+this expanded form is a concatenation of the namespace URI, the
+separator character (which is the 2nd argument to <code><a href=
+"#XML_ParserCreateNS" >XML_ParserCreateNS</a></code>), and the local
+name (i.e. the part after the colon). Names with undeclared prefixes
+are passed through to the handlers unchanged, with the prefix and
+colon still attached. Unprefixed attribute names are never expanded,
+and unprefixed element names are only expanded when they are in the
+scope of a default namespace.</p>
+
+<p>However if <code><a href= "XML_SetReturnNSTriplet"
+>XML_SetReturnNSTriplet</a></code> has been called with a non-zero
+<code>do_nst</code> parameter, then the expanded form for names with
+an explicit prefix is a concatenation of: URI, separator, local name,
+separator, prefix.</p>
+
+<p>You can set handlers for the start of a namespace declaration and
+for the end of a scope of a declaration with the <code><a href=
+"#XML_SetNamespaceDeclHandler" >XML_SetNamespaceDeclHandler</a></code>
+function.  The StartNamespaceDeclHandler is called prior to the start
+tag handler and the EndNamespaceDeclHandler is called before the
+corresponding end tag that ends the namespace's scope.  The namespace
+start handler gets passed the prefix and URI for the namespace.  For a
+default namespace declaration (xmlns='...'), the prefix will be null.
+The URI will be null for the case where the default namespace is being
+unset.  The namespace end handler just gets the prefix for the closing
+scope.</p>
+
+<p>These handlers are called for each declaration. So if, for
+instance, a start tag had three namespace declarations, then the
+StartNamespaceDeclHandler would be called three times before the start
+tag handler is called, once for each declaration.</p>
+
+<h3>Character Encodings</h3>
+
+<p>While XML is based on Unicode, and every XML processor is required
+to recognized UTF-8 and UTF-16 (1 and 2 byte encodings of Unicode),
+other encodings may be declared in XML documents or entities. For the
+main document, an XML declaration may contain an encoding
+declaration:</p>
+<pre>
+&lt;?xml version="1.0" encoding="ISO-8859-2"?&gt;
+</pre>
+
+<p>External parsed entities may begin with a text declaration, which
+looks like an XML declaration with just an encoding declaration:</p>
+<pre>
+&lt;?xml encoding="Big5"?&gt;
+</pre>
+
+<p>With Expat, you may also specify an encoding at the time of
+creating a parser. This is useful when the encoding information may
+come from a source outside the document itself (like a higher level
+protocol.)</p>
+
+<p><a name="builtin_encodings"></a>There are four built-in encodings
+in Expat:</p>
+<ul>
+<li>UTF-8</li>
+<li>UTF-16</li>
+<li>ISO-8859-1</li>
+<li>US-ASCII</li>
+</ul>
+
+<p>Anything else discovered in an encoding declaration or in the
+protocol encoding specified in the parser constructor, triggers a call
+to the <code>UnknownEncodingHandler</code>. This handler gets passed
+the encoding name and a pointer to an <code>XML_Encoding</code> data
+structure. Your handler must fill in this structure and return
+<code>XML_STATUS_OK</code> if it knows how to deal with the
+encoding. Otherwise the handler should return
+<code>XML_STATUS_ERROR</code>.  The handler also gets passed a pointer
+to an optional application data structure that you may indicate when
+you set the handler.</p>
+
+<p>Expat places restrictions on character encodings that it can
+support by filling in the <code>XML_Encoding</code> structure.
+include file:</p>
+<ol>
+<li>Every ASCII character that can appear in a well-formed XML document
+must be represented by a single byte, and that byte must correspond to
+it's ASCII encoding (except for the characters $@\^'{}~)</li>
+<li>Characters must be encoded in 4 bytes or less.</li>
+<li>All characters encoded must have Unicode scalar values less than or
+equal to 65535 (0xFFFF)<em>This does not apply to the built-in support
+for UTF-16 and UTF-8</em></li>
+<li>No character may be encoded by more that one distinct sequence of
+bytes</li>
+</ol>
+
+<p><code>XML_Encoding</code> contains an array of integers that
+correspond to the 1st byte of an encoding sequence. If the value in
+the array for a byte is zero or positive, then the byte is a single
+byte encoding that encodes the Unicode scalar value contained in the
+array. A -1 in this array indicates a malformed byte. If the value is
+-2, -3, or -4, then the byte is the beginning of a 2, 3, or 4 byte
+sequence respectively. Multi-byte sequences are sent to the convert
+function pointed at in the <code>XML_Encoding</code> structure. This
+function should return the Unicode scalar value for the sequence or -1
+if the sequence is malformed.</p>
+
+<p>One pitfall that novice Expat users are likely to fall into is that
+although Expat may accept input in various encodings, the strings that
+it passes to the handlers are always encoded in UTF-8 or UTF-16
+(depending on how Expat was compiled). Your application is responsible
+for any translation of these strings into other encodings.</p>
+
+<h3>Handling External Entity References</h3>
+
+<p>Expat does not read or parse external entities directly. Note that
+any external DTD is a special case of an external entity.  If you've
+set no <code>ExternalEntityRefHandler</code>, then external entity
+references are silently ignored. Otherwise, it calls your handler with
+the information needed to read and parse the external entity.</p>
+
+<p>Your handler isn't actually responsible for parsing the entity, but
+it is responsible for creating a subsidiary parser with <code><a href=
+"#XML_ExternalEntityParserCreate"
+>XML_ExternalEntityParserCreate</a></code> that will do the job. This
+returns an instance of <code>XML_Parser</code> that has handlers and
+other data structures initialized from the parent parser. You may then
+use <code><a href= "#XML_Parse" >XML_Parse</a></code> or <code><a
+href= "#XML_ParseBuffer">XML_ParseBuffer</a></code> calls against this
+parser.  Since external entities my refer to other external entities,
+your handler should be prepared to be called recursively.</p>
+
+<h3>Parsing DTDs</h3>
+
+<p>In order to parse parameter entities, before starting the parse,
+you must call <code><a href= "#XML_SetParamEntityParsing"
+>XML_SetParamEntityParsing</a></code> with one of the following
+arguments:</p>
+<dl>
+<dt><code>XML_PARAM_ENTITY_PARSING_NEVER</code></dt>
+<dd>Don't parse parameter entities or the external subset</dd>
+<dt><code>XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE</code></dt>
+<dd>Parse parameter entites and the external subset unless
+<code>standalone</code> was set to "yes" in the XML declaration.</dd>
+<dt><code>XML_PARAM_ENTITY_PARSING_ALWAYS</code></dt>
+<dd>Always parse parameter entities and the external subset</dd>
+</dl>
+
+<p>In order to read an external DTD, you also have to set an external
+entity reference handler as described above.</p>
+
+<hr />
+<!-- ================================================================ -->
+
+<h2><a name="reference">Expat Reference</a></h2>
+
+<h3><a name="creation">Parser Creation</a></h3>
+
+<pre class="fcndec" id="XML_ParserCreate">
+XML_Parser
+XML_ParserCreate(const XML_Char *encoding);
+</pre>
+<div class="fcndef">
+Construct a new parser. If encoding is non-null, it specifies a
+character encoding to use for the document. This overrides the document
+encoding declaration. There are four built-in encodings:
+<ul>
+<li>US-ASCII</li>
+<li>UTF-8</li>
+<li>UTF-16</li>
+<li>ISO-8859-1</li>
+</ul>
+Any other value will invoke a call to the UnknownEncodingHandler.
+</div>
+
+<pre class="fcndec" id="XML_ParserCreateNS">
+XML_Parser
+XML_ParserCreateNS(const XML_Char *encoding,
+                   XML_Char sep);
+</pre>
+<div class="fcndef">
+Constructs a new parser that has namespace processing in effect. Namespace
+expanded element names and attribute names are returned as a concatenation
+of the namespace URI, <em>sep</em>, and the local part of the name. This
+means that you should pick a character for <em>sep</em> that can't be
+part of a legal URI.</div>
+
+<pre class="fcndec" id="XML_ParserCreate_MM">
+XML_Parser
+XML_ParserCreate_MM(const XML_Char *encoding,
+                    const XML_Memory_Handling_Suite *ms,
+		    const XML_Char *sep);
+</pre>
+<pre class="signature">
+typedef struct {
+  void *(*malloc_fcn)(size_t size);
+  void *(*realloc_fcn)(void *ptr, size_t size);
+  void (*free_fcn)(void *ptr);
+} XML_Memory_Handling_Suite;
+</pre>
+<div class="fcndef">
+<p>Construct a new parser using the suite of memory handling functions
+specified in <code>ms</code>. If <code>ms</code> is NULL, then use the
+standard set of memory management functions. If <code>sep</code> is
+non NULL, then namespace processing is enabled in the created parser
+and the character pointed at by sep is used as the separator between
+the namespace URI and the local part of the name.</p>
+</div>
+
+<pre class="fcndec" id="XML_ExternalEntityParserCreate">
+XML_Parser
+XML_ExternalEntityParserCreate(XML_Parser p,
+                               const XML_Char *context,
+                               const XML_Char *encoding);
+</pre>
+<div class="fcndef">
+Construct a new <code>XML_Parser</code> object for parsing an external
+general entity. Context is the context argument passed in a call to a
+ExternalEntityRefHandler. Other state information such as handlers,
+user data, namespace processing is inherited from the parser passed as
+the 1st argument. So you shouldn't need to call any of the behavior
+changing functions on this parser (unless you want it to act
+differently than the parent parser).
+</div>
+
+<pre class="fcndec" id="XML_ParserFree">
+void
+XML_ParserFree(XML_Parser p);
+</pre>
+<div class="fcndef">
+Free memory used by the parser. Your application is responsible for
+freeing any memory associated with <a href="#userdata">user data</a>.
+</div>
+
+<pre class="fcndec" id="XML_ParserReset">
+XML_Bool
+XML_ParserReset(XML_Parser p);
+</pre>
+<div class="fcndef">
+Clean up the memory structures maintained by the parser so that it may
+be used again.  After this has been called, <code>parser</code> is
+ready to start parsing a new document.  This function may not be used
+on a parser created using <code><a href=
+"#XML_ExternalEntityParserCreate" >XML_ExternalEntityParserCreate</a
+></code>; it will return <code>XML_FALSE</code> in that case.  Returns
+<code>XML_TRUE</code> on success.  Your application is responsible for
+dealing with any memory associated with <a href="#userdata">user data</a>.
+</div>
+
+<h3><a name="parsing">Parsing</a></h3>
+
+<p>To state the obvious: the three parsing functions <code><a href=
+"#XML_Parse" >XML_Parse</a></code>, <code><a href= "#XML_ParseBuffer"
+>XML_ParseBuffer</a></code> and <code><a href= "#XML_GetBuffer"
+>>XML_GetBuffer</a></code> must not be
+called from within a handler unless they operate on a separate parser
+instance, that is, one that did not call the handler. For example, it
+is OK to call the parsing functions from within an
+<code>XML_ExternalEntityRefHandler</code>, if they apply to the parser
+created by <code><a href= "#XML_ExternalEntityParserCreate"
+>XML_ExternalEntityParserCreate</a></code>.</p>
+
+<pre class="fcndec" id="XML_Parse">
+XML_Status
+XML_Parse(XML_Parser p,
+          const char *s,
+          int len,
+          int isFinal);
+</pre>
+<pre class="signature">
+enum XML_Status {
+  XML_STATUS_ERROR = 0,
+  XML_STATUS_OK = 1
+};
+</pre>
+<div class="fcndef">
+Parse some more of the document. The string <code>s</code> is a buffer
+containing part (or perhaps all) of the document. The number of bytes of s
+that are part of the document is indicated by <code>len</code>. This means
+that <code>s</code> doesn't have to be null terminated. It also means that
+if <code>len</code> is larger than the number of bytes in the block of
+memory that <code>s</code> points at, then a memory fault is likely. The
+<code>isFinal</code> parameter informs the parser that this is the last
+piece of the document. Frequently, the last piece is empty (i.e.
+<code>len</code> is zero.)
+If a parse error occurred, it returns <code>XML_STATUS_ERROR</code>.
+Otherwise it returns <code>XML_STATUS_OK</code> value.
+</div>
+
+<pre class="fcndec" id="XML_ParseBuffer">
+XML_Status
+XML_ParseBuffer(XML_Parser p,
+                int len,
+                int isFinal);
+</pre>
+<div class="fcndef">
+This is just like <code><a href= "#XML_Parse" >XML_Parse</a></code>,
+except in this case Expat provides the buffer.  By obtaining the
+buffer from Expat with the <code><a href= "#XML_GetBuffer"
+>XML_GetBuffer</a></code> function, the application can avoid double
+copying of the input.
+</div>
+
+<pre class="fcndec" id="XML_GetBuffer">
+void *
+XML_GetBuffer(XML_Parser p,
+              int len);
+</pre>
+<div class="fcndef">
+Obtain a buffer of size <code>len</code> to read a piece of the document
+into. A NULL value is returned if Expat can't allocate enough memory for
+this buffer. This has to be called prior to every call to
+<code><a href= "#XML_ParseBuffer" >XML_ParseBuffer</a></code>. A
+typical use would look like this:
+
+<pre class="eg">
+for (;;) {
+  int bytes_read;
+  void *buff = XML_GetBuffer(p, BUFF_SIZE);
+  if (buff == NULL) {
+    /* handle error */
+  }
+
+  bytes_read = read(docfd, buff, BUFF_SIZE);
+  if (bytes_read &lt; 0) {
+    /* handle error */
+  }
+
+  if (! XML_ParseBuffer(p, bytes_read, bytes_read == 0)) {
+    /* handle parse error */
+  }
+
+  if (bytes_read == 0)
+    break;
+}
+</pre>
+</div>
+
+<h3><a name="setting">Handler Setting</a></h3>
+
+<p>Although handlers are typically set prior to parsing and left alone, an
+application may choose to set or change the handler for a parsing event
+while the parse is in progress. For instance, your application may choose
+to ignore all text not descended from a <code>para</code> element. One
+way it could do this is to set the character handler when a para start tag
+is seen, and unset it for the corresponding end tag.</p>
+
+<p>A handler may be <em>unset</em> by providing a NULL pointer to the
+appropriate handler setter. None of the handler setting functions have
+a return value.</p>
+
+<p>Your handlers will be receiving strings in arrays of type
+<code>XML_Char</code>. This type is defined in expat.h as <code>char
+*</code> and contains bytes encoding UTF-8.  Note that you'll receive
+them in this form independent of the original encoding of the
+document.</p>
+
+<div class="handler">
+<pre class="setter" id="XML_SetStartElementHandler">
+XML_SetStartElementHandler(XML_Parser p,
+                           XML_StartElementHandler start);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_StartElementHandler)(void *userData,
+                           const XML_Char *name,
+                           const XML_Char **atts);
+</pre>
+<p>Set handler for start (and empty) tags. Attributes are passed to the start
+handler as a pointer to a vector of char pointers. Each attribute seen in
+a start (or empty) tag occupies 2 consecutive places in this vector: the
+attribute name followed by the attribute value. These pairs are terminated
+by a null pointer.</p>
+<p>Note that an empty tag generates a call to both start and end handlers
+(in that order).</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetEndElementHandler">
+XML_SetEndElementHandler(XML_Parser p,
+                         XML_EndElementHandler);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_EndElementHandler)(void *userData,
+                         const XML_Char *name);
+</pre>
+<p>Set handler for end (and empty) tags. As noted above, an empty tag
+generates a call to both start and end handlers.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetElementHandler">
+XML_SetElementHandler(XML_Parser p,
+                      XML_StartElementHandler start,
+                      XML_EndElementHandler end);
+</pre>
+<p>Set handlers for start and end tags with one call.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetCharacterDataHandler">
+XML_SetCharacterDataHandler(XML_Parser p,
+                            XML_CharacterDataHandler charhndl)
+</pre>
+<pre class="signature">
+typedef void
+(*XML_CharacterDataHandler)(void *userData,
+                            const XML_Char *s,
+                            int len);
+</pre>
+<p>Set a text handler. The string your handler receives
+is <em>NOT nul-terminated</em>. You have to use the length argument
+to deal with the end of the string. A single block of contiguous text
+free of markup may still result in a sequence of calls to this handler.
+In other words, if you're searching for a pattern in the text, it may
+be split across calls to this handler.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetProcessingInstructionHandler">
+XML_SetProcessingInstructionHandler(XML_Parser p,
+                                    XML_ProcessingInstructionHandler proc)
+</pre>
+<pre class="signature">
+typedef void
+(*XML_ProcessingInstructionHandler)(void *userData,
+                                    const XML_Char *target,
+                                    const XML_Char *data);
+
+</pre>
+<p>Set a handler for processing instructions. The target is the first word
+in the processing instruction. The data is the rest of the characters in
+it after skipping all whitespace after the initial word.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetCommentHandler">
+XML_SetCommentHandler(XML_Parser p,
+                      XML_CommentHandler cmnt)
+</pre>
+<pre class="signature">
+typedef void
+(*XML_CommentHandler)(void *userData,
+                      const XML_Char *data);
+</pre>
+<p>Set a handler for comments. The data is all text inside the comment
+delimiters.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetStartCdataSectionHandler">
+XML_SetStartCdataSectionHandler(XML_Parser p,
+                                XML_StartCdataSectionHandler start);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_StartCdataSectionHandler)(void *userData);
+</pre>
+<p>Set a handler that gets called at the beginning of a CDATA section.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetEndCdataSectionHandler">
+XML_SetEndCdataSectionHandler(XML_Parser p,
+                              XML_EndCdataSectionHandler end);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_EndCdataSectionHandler)(void *userData);
+</pre>
+<p>Set a handler that gets called at the end of a CDATA section.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetCdataSectionHandler">
+XML_SetCdataSectionHandler(XML_Parser p,
+                           XML_StartCdataSectionHandler start,
+                           XML_EndCdataSectionHandler end)
+</pre>
+<p>Sets both CDATA section handlers with one call.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetDefaultHandler">
+XML_SetDefaultHandler(XML_Parser p,
+                      XML_DefaultHandler hndl)
+</pre>
+<pre class="signature">
+typedef void
+(*XML_DefaultHandler)(void *userData,
+                      const XML_Char *s,
+                      int len);
+</pre>
+
+<p>Sets a handler for any characters in the document which wouldn't
+otherwise be handled. This includes both data for which no handlers
+can be set (like some kinds of DTD declarations) and data which could
+be reported but which currently has no handler set.  The characters
+are passed exactly as they were present in the XML document except
+that they will be encoded in UTF-8 or UTF-16. Line boundaries are not
+normalized. Note that a byte order mark character is not passed to the
+default handler. There are no guarantees about how characters are
+divided between calls to the default handler: for example, a comment
+might be split between multiple calls.  Setting the handler with
+this call has the side effect of turning off expansion of references
+to internally defined general entities. Instead these references are
+passed to the default handler.</p>
+
+<p>See also <code><a
+href="#XML_DefaultCurrent">XML_DefaultCurrent</a></code>.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetDefaultHandlerExpand">
+XML_SetDefaultHandlerExpand(XML_Parser p,
+                            XML_DefaultHandler hndl)
+</pre>
+<pre class="signature">
+typedef void
+(*XML_DefaultHandler)(void *userData,
+                      const XML_Char *s,
+                      int len);
+</pre>
+<p>This sets a default handler, but doesn't inhibit the expansion of
+internal entity references.  The entity reference will not be passed
+to the default handler.</p>
+
+<p>See also <code><a
+href="#XML_DefaultCurrent">XML_DefaultCurrent</a></code>.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetExternalEntityRefHandler">
+XML_SetExternalEntityRefHandler(XML_Parser p,
+                                XML_ExternalEntityRefHandler hndl)
+</pre>
+<pre class="signature">
+typedef int
+(*XML_ExternalEntityRefHandler)(XML_Parser p,
+                                const XML_Char *context,
+                                const XML_Char *base,
+                                const XML_Char *systemId,
+                                const XML_Char *publicId);
+</pre>
+<p>Set an external entity reference handler. This handler is also
+called for processing an external DTD subset if parameter entity parsing
+is in effect. (See <a href="#XML_SetParamEntityParsing">
+<code>XML_SetParamEntityParsing</code></a>.)</p>
+
+<p>The <code>context</code> parameter specifies the parsing context in
+the format expected by the <code>context</code> argument to <code><a
+href="#XML_ExternalEntityParserCreate"
+>XML_ExternalEntityParserCreate</a></code>.  <code>code</code> is
+valid only until the handler returns, so if the referenced entity is
+to be parsed later, it must be copied.  <code>context</code> is NULL
+only when the entity is a parameter entity, which is how one can
+differentiate between general and parameter entities.</p>
+
+<p>The <code>base</code> parameter is the base to use for relative
+system identifiers.  It is set by <code><a
+href="#XML_SetBase">XML_SetBase</a></code> and may be NULL. The
+<code>publicId</code> parameter is the public id given in the entity
+declaration and may be NULL.  <code>systemId</code> is the system
+identifier specified in the entity declaration and is never NULL.</p>
+
+<p>There are a couple of ways in which this handler differs from
+others.  First, this handler returns a status indicator (an
+integer). <code>XML_STATUS_OK</code> should be returned for successful
+handling of the external entity reference.  Returning
+<code>XML_STATUS_ERROR</code> indicates failure, and causes the
+calling parser to return an
+<code>XML_ERROR_EXTERNAL_ENTITY_HANDLING</code> error.</p>
+
+<p>Second, instead of having the user data as its first argument, it
+receives the parser that encountered the entity reference. This, along
+with the context parameter, may be used as arguments to a call to
+<code><a href= "#XML_ExternalEntityParserCreate"
+>XML_ExternalEntityParserCreate</a></code>.  Using the returned
+parser, the body of the external entity can be recursively parsed.</p>
+
+<p>Since this handler may be called recursively, it should not be saving
+information into global or static variables.</p>
+</div>
+
+<pre class="fcndec" id="XML_SetExternalEntityRefHandlerArg">
+XML_SetExternalEntityRefHandlerArg(XML_Parser p,
+                                   void *arg)
+</pre>
+<div class="fcndef">
+<p>Set the argument passed to the ExternalEntityRefHandler.  If
+<code>arg</code> is not NULL, it is the new value passed to the
+handler set using <code><a href="#XML_SetExternalEntityRefHandler"
+>XML_SetExternalEntityRefHandler</a></code>; if <code>arg</code> is
+NULL, the argument passed to the handler function will be the parser
+object itself.</p>
+
+<p><strong>Note:</strong>
+The type of <code>arg</code> and the type of the first argument to the
+ExternalEntityRefHandler do not match.  This function takes a
+<code>void *</code> to be passed to the handler, while the handler
+accepts an <code>XML_Parser</code>.  This is a historical accident,
+but will not be corrected before Expat 2.0 (at the earliest) to avoid
+causing compiler warnings for code that's known to work with this
+API.  It is the responsibility of the application code to know the
+actual type of the argument passed to the handler and to manage it
+properly.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetSkippedEntityHandler">
+XML_SetSkippedEntityHandler(XML_Parser p,
+                            XML_SkippedEntityHandler handler)
+</pre>
+<pre class="signature">
+typedef void
+(*XML_SkippedEntityHandler)(void *userData,
+                            const XML_Char *entityName,
+                            int is_parameter_entity);
+</pre>
+<p>Set a skipped entity handler. This is called in two situations:</p>
+<ol>
+   <li>An entity reference is encountered for which no declaration
+       has been read <em>and</em> this is not an error.</li>
+   <li>An internal entity reference is read, but not expanded, because
+       <a href="#XML_SetDefaultHandler"><code>XML_SetDefaultHandler</code></a>
+	   has been called.</li>
+</ol>
+<p>The <code>is_parameter_entity</code> argument will be non-zero for
+a parameter entity and zero for a general entity.</p> <p>Note: skipped
+parameter entities in declarations and skipped general entities in
+attribute values cannot be reported, because the event would be out of
+sync with the reporting of the declarations or attribute values</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetUnknownEncodingHandler">
+XML_SetUnknownEncodingHandler(XML_Parser p,
+                              XML_UnknownEncodingHandler enchandler,
+			      void *encodingHandlerData)
+</pre>
+<pre class="signature">
+typedef int
+(*XML_UnknownEncodingHandler)(void *encodingHandlerData,
+                              const XML_Char *name,
+                              XML_Encoding *info);
+
+typedef struct {
+  int map[256];
+  void *data;
+  int (*convert)(void *data, const char *s);
+  void (*release)(void *data);
+} XML_Encoding;
+</pre>
+<p>Set a handler to deal with encodings other than the <a
+href="#builtin_encodings">built in set</a>. This should be done before
+<code><a href= "#XML_Parse" >XML_Parse</a></code> or <code><a href=
+"#XML_ParseBuffer" >XML_ParseBuffer</a></code> have been called on the
+given parser.</p> <p>If the handler knows how to deal with an encoding
+with the given name, it should fill in the <code>info</code> data
+structure and return <code>XML_STATUS_ERROR</code>. Otherwise it
+should return <code>XML_STATUS_OK</code>. The handler will be called
+at most once per parsed (external) entity. The optional application
+data pointer <code>encodingHandlerData</code> will be passed back to
+the handler.</p>
+
+<p>The map array contains information for every possible possible leading
+byte in a byte sequence. If the corresponding value is &gt;= 0, then it's
+a single byte sequence and the byte encodes that Unicode value. If the
+value is -1, then that byte is invalid as the initial byte in a sequence.
+If the value is -n, where n is an integer &gt; 1, then n is the number of
+bytes in the sequence and the actual conversion is accomplished by a
+call to the function pointed at by convert. This function may return -1
+if the sequence itself is invalid. The convert pointer may be null if
+there are only single byte codes. The data parameter passed to the convert
+function is the data pointer from <code>XML_Encoding</code>. The
+string s is <em>NOT</em> nul-terminated and points at the sequence of
+bytes to be converted.</p>
+
+<p>The function pointed at by <code>release</code> is called by the
+parser when it is finished with the encoding. It may be NULL.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetStartNamespaceDeclHandler">
+XML_SetStartNamespaceDeclHandler(XML_Parser p,
+			         XML_StartNamespaceDeclHandler start);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_StartNamespaceDeclHandler)(void *userData,
+                                 const XML_Char *prefix,
+                                 const XML_Char *uri);
+</pre>
+<p>Set a handler to be called when a namespace is declared. Namespace
+declarations occur inside start tags. But the namespace declaration start
+handler is called before the start tag handler for each namespace declared
+in that start tag.</p>
+
+<p><strong>Note:</strong>
+Due to limitations of the implementation, the
+StartNamespaceDeclHandler is not called unless the StartElementHandler
+is also set.  The specific value of the StartElementHandler is allowed
+to change freely, so long as it is not NULL.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetEndNamespaceDeclHandler">
+XML_SetEndNamespaceDeclHandler(XML_Parser p,
+			       XML_EndNamespaceDeclHandler end);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_EndNamespaceDeclHandler)(void *userData,
+                               const XML_Char *prefix);
+</pre>
+<p>Set a handler to be called when leaving the scope of a namespace
+declaration. This will be called, for each namespace declaration,
+after the handler for the end tag of the element in which the
+namespace was declared.</p>
+
+<p><strong>Note:</strong>
+Due to limitations of the implementation, the EndNamespaceDeclHandler
+is not called unless the StartElementHandler is also set.  The
+specific value of the StartElementHandler is allowed to change freely,
+so long as it is not NULL.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetNamespaceDeclHandler">
+XML_SetNamespaceDeclHandler(XML_Parser p,
+                            XML_StartNamespaceDeclHandler start,
+                            XML_EndNamespaceDeclHandler end)
+</pre>
+<p>Sets both namespace declaration handlers with a single call.</p>
+
+<p><strong>Note:</strong>
+Due to limitations of the implementation, the
+StartNamespaceDeclHandler and EndNamespaceDeclHandler are not called
+unless the StartElementHandler is also set.  The specific value of the
+StartElementHandler is allowed to change freely, so long as it is not
+NULL.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetXmlDeclHandler">
+XML_SetXmlDeclHandler(XML_Parser p,
+		      XML_XmlDeclHandler xmldecl);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_XmlDeclHandler) (void            *userData,
+                       const XML_Char  *version,
+                       const XML_Char  *encoding,
+                       int             standalone);
+</pre>
+<p>Sets a handler that is called for XML declarations and also for
+text declarations discovered in external entities. The way to
+distinguish is that the <code>version</code> parameter will be NULL
+for text declarations. The <code>encoding</code> parameter may be NULL
+for an XML declaration. The <code>standalone</code> argument will
+contain -1, 0, or 1 indicating respectively that there was no
+standalone parameter in the declaration, that it was given as no, or
+that it was given as yes.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetStartDoctypeDeclHandler">
+XML_SetStartDoctypeDeclHandler(XML_Parser p,
+			       XML_StartDoctypeDeclHandler start);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_StartDoctypeDeclHandler)(void           *userData,
+                               const XML_Char *doctypeName,
+                               const XML_Char *sysid,
+                               const XML_Char *pubid,
+                               int            has_internal_subset);
+</pre>
+<p>Set a handler that is called at the start of a DOCTYPE declaration,
+before any external or internal subset is parsed. Both <code>sysid</code>
+and <code>pubid</code> may be NULL. The <code>has_internal_subset</code>
+will be non-zero if the DOCTYPE declaration has an internal subset.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetEndDoctypeDeclHandler">
+XML_SetEndDoctypeDeclHandler(XML_Parser p,
+			     XML_EndDoctypeDeclHandler end);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_EndDoctypeDeclHandler)(void *userData);
+</pre>
+<p>Set a handler that is called at the end of a DOCTYPE declaration,
+after parsing any external subset.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetDoctypeDeclHandler">
+XML_SetDoctypeDeclHandler(XML_Parser p,
+			  XML_StartDoctypeDeclHandler start,
+			  XML_EndDoctypeDeclHandler end);
+</pre>
+<p>Set both doctype handlers with one call.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetElementDeclHandler">
+XML_SetElementDeclHandler(XML_Parser p,
+			  XML_ElementDeclHandler eldecl);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_ElementDeclHandler)(void *userData,
+                          const XML_Char *name,
+                          XML_Content *model);
+</pre>
+<pre class="signature">
+enum XML_Content_Type {
+  XML_CTYPE_EMPTY = 1,
+  XML_CTYPE_ANY,
+  XML_CTYPE_MIXED,
+  XML_CTYPE_NAME,
+  XML_CTYPE_CHOICE,
+  XML_CTYPE_SEQ
+};
+
+enum XML_Content_Quant {
+  XML_CQUANT_NONE,
+  XML_CQUANT_OPT,
+  XML_CQUANT_REP,
+  XML_CQUANT_PLUS
+};
+
+typedef struct XML_cp XML_Content;
+
+struct XML_cp {
+  enum XML_Content_Type		type;
+  enum XML_Content_Quant	quant;
+  const XML_Char *		name;
+  unsigned int			numchildren;
+  XML_Content *			children;
+};
+</pre>
+<p>Sets a handler for element declarations in a DTD. The handler gets
+called with the name of the element in the declaration and a pointer
+to a structure that contains the element model. It is the
+application's responsibility to free this data structure using
+<code><a href="#XML_FreeContentModel"
+>XML_FreeContentModel</a></code>.</p>
+
+<p>The <code>model</code> argument is the root of a tree of
+<code>XML_Content</code> nodes. If <code>type</code> equals
+<code>XML_CTYPE_EMPTY</code> or <code>XML_CTYPE_ANY</code>, then
+<code>quant</code> will be <code>XML_CQUANT_NONE</code>, and the other
+fields will be zero or NULL.  If <code>type</code> is
+<code>XML_CTYPE_MIXED</code>, then <code>quant</code> will be
+<code>XML_CQUANT_NONE</code> or <code>XML_CQUANT_REP</code> and
+<code>numchildren</code> will contain the number of elements that are
+allowed to be mixed in and <code>children</code> points to an array of
+<code>XML_Content</code> structures that will all have type
+XML_CTYPE_NAME with no quantification.  Only the root node can be type
+<code>XML_CTYPE_EMPTY</code>, <code>XML_CTYPE_ANY</code>, or
+<code>XML_CTYPE_MIXED</code>.</p>
+
+<p>For type <code>XML_CTYPE_NAME</code>, the <code>name</code> field
+points to the name and the <code>numchildren</code> and
+<code>children</code> fields will be zero and NULL. The
+<code>quant</code> field will indicate any quantifiers placed on the
+name.</p>
+
+<p>Types <code>XML_CTYPE_CHOICE</code> and <code>XML_CTYPE_SEQ</code>
+indicate a choice or sequence respectively. The
+<code>numchildren</code> field indicates how many nodes in the choice
+or sequence and <code>children</code> points to the nodes.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetAttlistDeclHandler">
+XML_SetAttlistDeclHandler(XML_Parser p,
+                          XML_AttlistDeclHandler attdecl);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_AttlistDeclHandler) (void           *userData,
+                           const XML_Char *elname,
+                           const XML_Char *attname,
+                           const XML_Char *att_type,
+                           const XML_Char *dflt,
+                           int            isrequired);
+</pre>
+<p>Set a handler for attlist declarations in the DTD. This handler is
+called for <em>each</em> attribute. So a single attlist declaration
+with multiple attributes declared will generate multiple calls to this
+handler. The <code>elname</code> parameter returns the name of the
+element for which the attribute is being declared. The attribute name
+is in the <code>attname</code> parameter. The attribute type is in the
+<code>att_type</code> parameter.  It is the string representing the
+type in the declaration with whitespace removed.</p>
+
+<p>The <code>dflt</code> parameter holds the default value. It will be
+NULL in the case of "#IMPLIED" or "#REQUIRED" attributes. You can
+distinguish these two cases by checking the <code>isrequired</code>
+parameter, which will be true in the case of "#REQUIRED" attributes.
+Attributes which are "#FIXED" will have also have a true
+<code>isrequired</code>, but they will have the non-NULL fixed value
+in the <code>dflt</code> parameter.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetEntityDeclHandler">
+XML_SetEntityDeclHandler(XML_Parser p,
+			 XML_EntityDeclHandler handler);
+</pre>
+<pre class="signature">
+typedef void
+(*XML_EntityDeclHandler) (void           *userData,
+                          const XML_Char *entityName,
+                          int            is_parameter_entity,
+                          const XML_Char *value,
+                          int            value_length,
+                          const XML_Char *base,
+                          const XML_Char *systemId,
+                          const XML_Char *publicId,
+                          const XML_Char *notationName);
+</pre>
+<p>Sets a handler that will be called for all entity declarations.
+The <code>is_parameter_entity</code> argument will be non-zero in the
+case of parameter entities and zero otherwise.</p>
+
+<p>For internal entities (<code>&lt;!ENTITY foo "bar"&gt;</code>),
+<code>value</code> will be non-NULL and <code>systemId</code>,
+<code>publicId</code>, and <code>notationName</code> will all be NULL.
+The value string is <em>not</em> NULL terminated; the length is
+provided in the <code>value_length</code> parameter. Do not use
+<code>value_length</code> to test for internal entities, since it is
+legal to have zero-length values. Instead check for whether or not
+<code>value</code> is NULL.</p> <p>The <code>notationName</code>
+argument will have a non-NULL value only for unparsed entity
+declarations.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetUnparsedEntityDeclHandler">
+XML_SetUnparsedEntityDeclHandler(XML_Parser p,
+                                 XML_UnparsedEntityDeclHandler h)
+</pre>
+<pre class="signature">
+typedef void
+(*XML_UnparsedEntityDeclHandler)(void *userData,
+                                 const XML_Char *entityName,
+                                 const XML_Char *base,
+                                 const XML_Char *systemId,
+                                 const XML_Char *publicId,
+                                 const XML_Char *notationName);
+</pre>
+<p>Set a handler that receives declarations of unparsed entities. These
+are entity declarations that have a notation (NDATA) field:</p>
+
+<div id="eg"><pre>
+&lt;!ENTITY logo SYSTEM "images/logo.gif" NDATA gif&gt;
+</pre></div>
+<p>This handler is obsolete and is provided for backwards
+compatibility.  Use instead <a href= "#XML_SetEntityDeclHandler"
+>XML_SetEntityDeclHandler</a>.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetNotationDeclHandler">
+XML_SetNotationDeclHandler(XML_Parser p,
+                           XML_NotationDeclHandler h)
+</pre>
+<pre class="signature">
+typedef void
+(*XML_NotationDeclHandler)(void *userData,
+                           const XML_Char *notationName,
+                           const XML_Char *base,
+                           const XML_Char *systemId,
+                           const XML_Char *publicId);
+</pre>
+<p>Set a handler that receives notation declarations.</p>
+</div>
+
+<div class="handler">
+<pre class="setter" id="XML_SetNotStandaloneHandler">
+XML_SetNotStandaloneHandler(XML_Parser p,
+                            XML_NotStandaloneHandler h)
+</pre>
+<pre class="signature">
+typedef int 
+(*XML_NotStandaloneHandler)(void *userData);
+</pre>
+<p>Set a handler that is called if the document is not "standalone".
+This happens when there is an external subset or a reference to a
+parameter entity, but does not have standalone set to "yes" in an XML
+declaration.  If this handler returns <code>XML_STATUS_ERROR</code>,
+then the parser will throw an <code>XML_ERROR_NOT_STANDALONE</code>
+error.</p>
+</div>
+
+<h3><a name="position">Parse position and error reporting functions</a></h3>
+
+<p>These are the functions you'll want to call when the parse
+functions return <code>XML_STATUS_ERROR</code> (a parse error has
+ocurred), although the position reporting functions are useful outside
+of errors. The position reported is the byte position (in the original
+document or entity encoding) of the first of the sequence of
+characters that generated the current event (or the error that caused
+the parse functions to return <code>XML_STATUS_ERROR</code>.)</p>
+
+<p>The position reporting functions are accurate only outside of the
+DTD.  In other words, they usually return bogus information when
+called from within a DTD declaration handler.</p>
+
+<pre class="fcndec" id="XML_GetErrorCode">
+enum XML_Error
+XML_GetErrorCode(XML_Parser p);
+</pre>
+<div class="fcndef">
+Return what type of error has occurred.
+</div>
+
+<pre class="fcndec" id="XML_ErrorString">
+const XML_LChar *
+XML_ErrorString(int code);
+</pre>
+<div class="fcndef">
+Return a string describing the error corresponding to code.
+The code should be one of the enums that can be returned from
+<code><a href= "#XML_GetErrorCode" >XML_GetErrorCode</a></code>.
+</div>
+
+<pre class="fcndec" id="XML_GetCurrentByteIndex">
+long
+XML_GetCurrentByteIndex(XML_Parser p);
+</pre>
+<div class="fcndef">
+Return the byte offset of the position.
+</div>
+
+<pre class="fcndec" id="XML_GetCurrentLineNumber">
+int
+XML_GetCurrentLineNumber(XML_Parser p);
+</pre>
+<div class="fcndef">
+Return the line number of the position.
+</div>
+
+<pre class="fcndec" id="XML_GetCurrentColumnNumber">
+int
+XML_GetCurrentColumnNumber(XML_Parser p);
+</pre>
+<div class="fcndef">
+Return the offset, from the beginning of the current line, of
+the position.
+</div>
+
+<pre class="fcndec" id="XML_GetCurrentByteCount">
+int
+XML_GetCurrentByteCount(XML_Parser p);
+</pre>
+<div class="fcndef">
+Return the number of bytes in the current event. Returns
+<code>0</code> if the event is inside a reference to an internal
+entity and for the end-tag event for empty element tags (the later can
+be used to distinguish empty-element tags from empty elements using
+separate start and end tags).
+</div>
+
+<pre class="fcndec" id="XML_GetInputContext">
+const char *
+XML_GetInputContext(XML_Parser p,
+                    int *offset,
+                    int *size);
+</pre>
+<div class="fcndef">
+
+<p>Returns the parser's input buffer, sets the integer pointed at by
+<code>offset</code> to the offset within this buffer of the current
+parse position, and set the integer pointed at by <code>size</code> to
+the size of the returned buffer.</p>
+
+<p>This should only be called from within a handler during an active
+parse and the returned buffer should only be referred to from within
+the handler that made the call. This input buffer contains the
+untranslated bytes of the input.</p>
+
+<p>Only a limited amount of context is kept, so if the event
+triggering a call spans over a very large amount of input, the actual
+parse position may be before the beginning of the buffer.</p>
+</div>
+
+<h3><a name="miscellaneous">Miscellaneous functions</a></h3>
+
+<p>The functions in this section either obtain state information from
+the parser or can be used to dynamicly set parser options.</p>
+
+<pre class="fcndec" id="XML_SetUserData">
+void
+XML_SetUserData(XML_Parser p,
+                void *userData);
+</pre>
+<div class="fcndef">
+This sets the user data pointer that gets passed to handlers.  It
+overwrites any previous value for this pointer. Note that the
+application is responsible for freeing the memory associated with
+<code>userData</code> when it is finished with the parser. So if you
+call this when there's already a pointer there, and you haven't freed
+the memory associated with it, then you've probably just leaked
+memory.
+</div>
+
+<pre class="fcndec" id="XML_GetUserData">
+void *
+XML_GetUserData(XML_Parser p);
+</pre>
+<div class="fcndef">
+This returns the user data pointer that gets passed to handlers.
+It is actually implemented as a macro.
+</div>
+
+<pre class="fcndec" id="XML_UseParserAsHandlerArg">
+void
+XML_UseParserAsHandlerArg(XML_Parser p);
+</pre>
+<div class="fcndef">
+After this is called, handlers receive the parser in their
+<code>userData</code> arguments.  The user data can still be obtained
+using the <code><a href= "#XML_GetUserData"
+>XML_GetUserData</a></code> function.
+</div>
+
+<pre class="fcndec" id="XML_SetBase">
+enum XML_Status
+XML_SetBase(XML_Parser p,
+            const XML_Char *base);
+</pre>
+<div class="fcndef">
+Set the base to be used for resolving relative URIs in system
+identifiers.  The return value is <code>XML_STATUS_ERROR</code> if
+there's no memory to store base, otherwise it's
+<code>XML_STATUS_OK</code>.
+</div>
+
+<pre class="fcndec" id="XML_GetBase">
+const XML_Char *
+XML_GetBase(XML_Parser p);
+</pre>
+<div class="fcndef">
+Return the base for resolving relative URIs.
+</div>
+
+<pre class="fcndec" id="XML_GetSpecifiedAttributeCount">
+int
+XML_GetSpecifiedAttributeCount(XML_Parser p);
+</pre>
+<div class="fcndef">
+When attributes are reported to the start handler in the atts vector,
+attributes that were explicitly set in the element occur before any
+attributes that receive their value from default information in an
+ATTLIST declaration. This function returns the number of attributes
+that were explicitly set times two, thus giving the offset in the
+<code>atts</code> array passed to the start tag handler of the first
+attribute set due to defaults. It supplies information for the last
+call to a start handler. If called inside a start handler, then that
+means the current call.
+</div>
+
+<pre class="fcndec" id="XML_GetIdAttributeIndex">
+int
+XML_GetIdAttributeIndex(XML_Parser p);
+</pre>
+<div class="fcndef">
+Returns the index of the ID attribute passed in the atts array in the
+last call to <code><a href= "#XML_StartElementHandler"
+>XML_StartElementHandler</a></code>, or -1 if there is no ID
+attribute. If called inside a start handler, then that means the
+current call.
+</div>
+
+<pre class="fcndec" id="XML_SetEncoding">
+enum XML_Status
+XML_SetEncoding(XML_Parser p,
+                const XML_Char *encoding);
+</pre>
+<div class="fcndef">
+Set the encoding to be used by the parser. It is equivalent to
+passing a non-null encoding argument to the parser creation functions.
+It must not be called after <code><a href= "#XML_Parse"
+>XML_Parse</a></code> or <code><a href= "#XML_ParseBuffer"
+>XML_ParseBuffer</a></code> have been called on the given parser.
+Returns <code>XML_STATUS_OK</code> on success or
+<code>XML_STATUS_ERROR</code> on error.
+</div>
+
+<pre class="fcndec" id="XML_SetParamEntityParsing">
+int
+XML_SetParamEntityParsing(XML_Parser p,
+                          enum XML_ParamEntityParsing code);
+</pre>
+<div class="fcndef">
+This enables parsing of parameter entities, including the external
+parameter entity that is the external DTD subset, according to
+<code>code</code>.
+The choices for <code>code</code> are:
+<ul>
+<li><code>XML_PARAM_ENTITY_PARSING_NEVER</code></li>
+<li><code>XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE</code></li>
+<li><code>XML_PARAM_ENTITY_PARSING_ALWAYS</code></li>
+</ul>
+</div>
+
+<pre class="fcndec" id="XML_UseForeignDTD">
+enum XML_Error
+XML_UseForeignDTD(XML_Parser parser, XML_Bool useDTD);
+</pre>
+<div class="fcndef">
+<p>This function allows an application to provide an external subset
+for the document type declaration for documents which do not specify
+an external subset of their own.  For documents which specify an
+external subset in their DOCTYPE declaration, the application-provided
+subset will be ignored.  If the document does not contain a DOCTYPE
+declaration at all and <code>useDTD</code> is true, the
+application-provided subset will be parsed, but the
+<code>startDoctypeDeclHandler</code> and
+<code>endDoctypeDeclHandler</code> functions, if set, will not be
+called.  The setting of parameter entity parsing, controlled using
+<code><a href= "#XML_SetParamEntityParsing"
+>XML_SetParamEntityParsing</a></code>, will be honored.</p>
+
+<p>The application-provided external subset is read by calling the
+external entity reference handler set via <code><a href=
+"#XML_SetExternalEntityRefHandler"
+>XML_SetExternalEntityRefHandler</a></code> with both
+<code>publicId</code> and <code>systemId</code> set to NULL.</p>
+
+<p>If this function is called after parsing has begun, it returns
+<code>XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING</code> and ignores
+<code>useDTD</code>.  If called when Expat has been compiled without
+DTD support, it returns
+<code>XML_ERROR_FEATURE_REQUIRES_XML_DTD</code>.  Otherwise, it
+returns <code>XML_ERROR_NONE</code>.</p>
+</div>
+
+<pre class="fcndec" id="XML_SetReturnNSTriplet">
+void
+XML_SetReturnNSTriplet(XML_Parser parser,
+                       int        do_nst);
+</pre>
+<div class="fcndef">
+<p>
+This function only has an effect when using a parser created with
+<code><a href= "#XML_ParserCreateNS" >XML_ParserCreateNS</a></code>,
+i.e. when namespace processing is in effect. The <code>do_nst</code>
+sets whether or not prefixes are returned with names qualified with a
+namespace prefix. If this function is called with <code>do_nst</code>
+non-zero, then afterwards namespace qualified names (that is qualified
+with a prefix as opposed to belonging to a default namespace) are
+returned as a triplet with the three parts separated by the namespace
+separator specified when the parser was created.  The order of
+returned parts is URI, local name, and prefix.</p> <p>If
+<code>do_nst</code> is zero, then namespaces are reported in the
+default manner, URI then local_name separated by the namespace
+separator.</p>
+</div>
+
+<pre class="fcndec" id="XML_DefaultCurrent">
+void
+XML_DefaultCurrent(XML_Parser parser);
+</pre>
+<div class="fcndef">
+This can be called within a handler for a start element, end element,
+processing instruction or character data.  It causes the corresponding
+markup to be passed to the default handler set by <code><a
+href="#XML_SetDefaultHandler" >XML_SetDefaultHandler</a></code> or
+<code><a href="#XML_SetDefaultHandlerExpand"
+>XML_SetDefaultHandlerExpand</a></code>.  It does nothing if there is
+not a default handler.
+</div>
+
+<pre class="fcndec" id="XML_ExpatVersion">
+XML_LChar *
+XML_ExpatVersion();
+</pre>
+<div class="fcndef">
+Return the library version as a string (e.g. <code>"expat_1.95.1"</code>).
+</div>
+
+<pre class="fcndec" id="XML_ExpatVersionInfo">
+struct XML_Expat_Version
+XML_ExpatVersionInfo();
+</pre>
+<pre class="signature">
+typedef struct {
+  int major;
+  int minor;
+  int micro;
+} XML_Expat_Version;
+</pre>
+<div class="fcndef">
+Return the library version information as a structure.
+Some macros are also defined that support compile-time tests of the
+library version:
+<ul>
+<li><code>XML_MAJOR_VERSION</code></li>
+<li><code>XML_MINOR_VERSION</code></li>
+<li><code>XML_MICRO_VERSION</code></li>
+</ul>
+Testing these constants is currently the best way to determine if
+particular parts of the Expat API are available.
+</div>
+
+<pre class="fcndec" id="XML_GetFeatureList">
+const XML_Feature *
+XML_GetFeatureList();
+</pre>
+<pre class="signature">
+enum XML_FeatureEnum {
+  XML_FEATURE_END = 0,
+  XML_FEATURE_UNICODE,
+  XML_FEATURE_UNICODE_WCHAR_T,
+  XML_FEATURE_DTD,
+  XML_FEATURE_CONTEXT_BYTES,
+  XML_FEATURE_MIN_SIZE,
+  XML_FEATURE_SIZEOF_XML_CHAR,
+  XML_FEATURE_SIZEOF_XML_LCHAR
+};
+
+typedef struct {
+  enum XML_FeatureEnum  feature;
+  XML_LChar            *name;
+  long int              value;
+} XML_Feature;
+</pre>
+<div class="fcndef">
+<p>Returns a list of "feature" records, providing details on how
+Expat was configured at compile time.  Most applications should not
+need to worry about this, but this information is otherwise not
+available from Expat.  This function allows code that does need to
+check these features to do so at runtime.</p>
+
+<p>The return value is an array of <code>XML_Feature</code>,
+terminated by a record with a <code>feature</code> of
+<code>XML_FEATURE_END</code> and <code>name</code> of NULL,
+identifying the feature-test macros Expat was compiled with.  Since an
+application that requires this kind of information needs to determine
+the type of character the <code>name</code> points to, records for the
+<code>XML_FEATURE_SIZEOF_XML_CHAR</code> and
+<code>XML_FEATURE_SIZEOF_XML_LCHAR</code> will be located at the
+beginning of the list, followed by <code>XML_FEATURE_UNICODE</code>
+and <code>XML_FEATURE_UNICODE_WCHAR_T</code>, if they are present at
+all.</p>
+
+<p>Some features have an associated value.  If there isn't an
+associated value, the <code>value</code> field is set to 0.  At this
+time, the following features have been defined to have values:</p>
+
+<dl>
+  <dt><code>XML_FEATURE_SIZEOF_XML_CHAR</code></dt>
+  <dd>The number of bytes occupied by one <code>XML_Char</code>
+  character.</dd>
+  <dt><code>XML_FEATURE_SIZEOF_XML_LCHAR</code></dt>
+  <dd>The number of bytes occupied by one <code>XML_LChar</code>
+  character.</dd>
+  <dt><code>XML_FEATURE_CONTEXT_BYTES</code></dt>
+  <dd>The maximum number of characters of context which can be
+  reported by <code><a href= "#XML_GetInputContext"
+  >XML_GetInputContext</a></code>.</dd>
+</dl>
+</div>
+
+<pre class="fcndec" id="XML_FreeContentModel">
+void
+XML_FreeContentModel(XML_Parser parser, XML_Content *model);
+</pre>
+<div class="fcndef">
+Function to deallocate the <code>model</code> argument passed to the
+<code>XML_ElementDeclHandler</code> callback set using <code><a
+href="#XML_SetElementDeclHandler" >XML_ElementDeclHandler</a></code>.
+This function should not be used for any other purpose.
+</div>
+
+<p>The following functions allow external code to share the memory
+allocator an <code>XML_Parser</code> has been configured to use.  This
+is especially useful for third-party libraries that interact with a
+parser object created by application code, or heavily layered
+applications.  This can be essential when using dynamically loaded
+libraries which use different C standard libraries (this can happen on
+Windows, at least).</p>
+
+<pre class="fcndec" id="XML_MemMalloc">
+void *
+XML_MemMalloc(XML_Parser parser, size_t size);
+</pre>
+<div class="fcndef">
+Allocate <code>size</code> bytes of memory using the allocator the
+<code>parser</code> object has been configured to use.  Returns a
+pointer to the memory or NULL on failure.  Memory allocated in this
+way must be freed using <code><a href="#XML_MemFree"
+>XML_MemFree</a></code>.
+</div>
+
+<pre class="fcndec" id="XML_MemRealloc">
+void *
+XML_MemRealloc(XML_Parser parser, void *ptr, size_t size);
+</pre>
+<div class="fcndef">
+Allocate <code>size</code> bytes of memory using the allocator the
+<code>parser</code> object has been configured to use.
+<code>ptr</code> must point to a block of memory allocated by <code><a
+href="#XML_MemMalloc" >XML_MemMalloc</a></code> or
+<code>XML_MemRealloc</code>, or be NULL.  This function tries to
+expand the block pointed to by <code>ptr</code> if possible.  Returns
+a pointer to the memory or NULL on failure.  On success, the original
+block has either been expanded or freed.  On failure, the original
+block has not been freed; the caller is responsible for freeing the
+original block.  Memory allocated in this way must be freed using
+<code><a href="#XML_MemFree"
+>XML_MemFree</a></code>.
+</div>
+
+<pre class="fcndec" id="XML_MemFree">
+void
+XML_MemFree(XML_Parser parser, void *ptr);
+</pre>
+<div class="fcndef">
+Free a block of memory pointed to by <code>ptr</code>.  The block must
+have been allocated by <code><a href="#XML_MemMalloc"
+>XML_MemMalloc</a></code> or <code>XML_MemRealloc</code>, or be NULL.
+</div>
+
+<hr />
+<p><a href="http://validator.w3.org/check/referer"><img
+        src="valid-xhtml10.png" alt="Valid XHTML 1.0!"
+        height="31" width="88" class="noborder" /></a></p>
+</body>
+</html>
diff --git a/lib/libexpat/doc/style.css b/lib/libexpat/doc/style.css
new file mode 100644
index 00000000000..6f4886077ac
--- /dev/null
+++ b/lib/libexpat/doc/style.css
@@ -0,0 +1,51 @@
+body {
+  background-color: white
+}
+
+.noborder {
+  border-width: 0px;
+}
+
+.eg {
+  padding-left: 1em;
+  padding-top: .5em;
+  padding-bottom: .5em;
+  border: solid thin;
+  margin: 1em 0;
+  background-color: tan;
+  margin-left: 2em;
+  margin-right: 10%;
+}
+
+.handler {
+  width: 100%;
+  border-top-width: thin;  
+  margin-bottom: 1em;
+}
+
+.handler p {
+  margin-left: 2em;
+}
+
+.setter {
+  font-weight: bold;
+}
+
+.signature {
+  color: navy;
+}
+
+.fcndec {
+  width: 100%;
+  border-top-width: thin;
+  font-weight: bold;
+}
+
+.fcndef {
+  margin-left: 2em;
+  margin-bottom: 2em;
+}
+
+dd {
+  margin-bottom: 2em;
+}
diff --git a/lib/libexpat/doc/valid-xhtml10.png b/lib/libexpat/doc/valid-xhtml10.png
new file mode 100644
index 00000000000..2275ee6ea17
--- /dev/null
+++ b/lib/libexpat/doc/valid-xhtml10.png
diff --git a/lib/libexpat/doc/xmlwf.1 b/lib/libexpat/doc/xmlwf.1
new file mode 100644
index 00000000000..907d6c37b5a
--- /dev/null
+++ b/lib/libexpat/doc/xmlwf.1
@@ -0,0 +1,251 @@
+.\" This manpage has been automatically generated by docbook2man 
+.\" from a DocBook document.  This tool can be found at:
+.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/> 
+.\" Please send any bug reports, improvements, comments, patches, 
+.\" etc. to Steve Cheng <steve@ggi-project.org>.
+.TH "XMLWF" "1" "24 January 2003" "" ""
+.SH NAME
+xmlwf \- Determines if an XML document is well-formed
+.SH SYNOPSIS
+
+\fBxmlwf\fR [ \fB-s\fR]  [ \fB-n\fR]  [ \fB-p\fR]  [ \fB-x\fR]  [ \fB-e \fIencoding\fB\fR]  [ \fB-w\fR]  [ \fB-d \fIoutput-dir\fB\fR]  [ \fB-c\fR]  [ \fB-m\fR]  [ \fB-r\fR]  [ \fB-t\fR]  [ \fB-v\fR]  [ \fBfile ...\fR] 
+
+.SH "DESCRIPTION"
+.PP
+\fBxmlwf\fR uses the Expat library to
+determine if an XML document is well-formed.  It is
+non-validating.
+.PP
+If you do not specify any files on the command-line, and you
+have a recent version of \fBxmlwf\fR, the
+input file will be read from standard input.
+.SH "WELL-FORMED DOCUMENTS"
+.PP
+A well-formed document must adhere to the
+following rules:
+.TP 0.2i
+\(bu
+The file begins with an XML declaration.  For instance,
+<?xml version="1.0" standalone="yes"?>.
+\fBNOTE:\fR
+\fBxmlwf\fR does not currently
+check for a valid XML declaration.
+.TP 0.2i
+\(bu
+Every start tag is either empty (<tag/>)
+or has a corresponding end tag.
+.TP 0.2i
+\(bu
+There is exactly one root element.  This element must contain
+all other elements in the document.  Only comments, white
+space, and processing instructions may come after the close
+of the root element.
+.TP 0.2i
+\(bu
+All elements nest properly.
+.TP 0.2i
+\(bu
+All attribute values are enclosed in quotes (either single
+or double).
+.PP
+If the document has a DTD, and it strictly complies with that
+DTD, then the document is also considered \fBvalid\fR.
+\fBxmlwf\fR is a non-validating parser --
+it does not check the DTD.  However, it does support
+external entities (see the \fB-x\fR option).
+.SH "OPTIONS"
+.PP
+When an option includes an argument, you may specify the argument either
+separately ("\fB-d\fR output") or concatenated with the
+option ("\fB-d\fRoutput").  \fBxmlwf\fR
+supports both.
+.TP
+\fB-c\fR
+If the input file is well-formed and \fBxmlwf\fR
+doesn't encounter any errors, the input file is simply copied to
+the output directory unchanged.
+This implies no namespaces (turns off \fB-n\fR) and
+requires \fB-d\fR to specify an output file.
+.TP
+\fB-d output-dir\fR
+Specifies a directory to contain transformed
+representations of the input files.
+By default, \fB-d\fR outputs a canonical representation
+(described below).
+You can select different output formats using \fB-c\fR
+and \fB-m\fR.
+
+The output filenames will
+be exactly the same as the input filenames or "STDIN" if the input is
+coming from standard input.  Therefore, you must be careful that the
+output file does not go into the same directory as the input
+file.  Otherwise, \fBxmlwf\fR will delete the
+input file before it generates the output file (just like running
+cat < file > file in most shells).
+
+Two structurally equivalent XML documents have a byte-for-byte
+identical canonical XML representation.
+Note that ignorable white space is considered significant and
+is treated equivalently to data.
+More on canonical XML can be found at
+http://www.jclark.com/xml/canonxml.html .
+.TP
+\fB-e encoding\fR
+Specifies the character encoding for the document, overriding
+any document encoding declaration.  \fBxmlwf\fR
+supports four built-in encodings:
+US-ASCII,
+UTF-8,
+UTF-16, and
+ISO-8859-1.
+Also see the \fB-w\fR option.
+.TP
+\fB-m\fR
+Outputs some strange sort of XML file that completely
+describes the the input file, including character postitions.
+Requires \fB-d\fR to specify an output file.
+.TP
+\fB-n\fR
+Turns on namespace processing.  (describe namespaces)
+\fB-c\fR disables namespaces.
+.TP
+\fB-p\fR
+Tells xmlwf to process external DTDs and parameter
+entities.
+
+Normally \fBxmlwf\fR never parses parameter
+entities.  \fB-p\fR tells it to always parse them.
+\fB-p\fR implies \fB-x\fR.
+.TP
+\fB-r\fR
+Normally \fBxmlwf\fR memory-maps the XML file
+before parsing; this can result in faster parsing on many
+platforms.
+\fB-r\fR turns off memory-mapping and uses normal file
+IO calls instead.
+Of course, memory-mapping is automatically turned off
+when reading from standard input.
+
+Use of memory-mapping can cause some platforms to report
+substantially higher memory usage for
+\fBxmlwf\fR, but this appears to be a matter of
+the operating system reporting memory in a strange way; there is
+not a leak in \fBxmlwf\fR.
+.TP
+\fB-s\fR
+Prints an error if the document is not standalone. 
+A document is standalone if it has no external subset and no
+references to parameter entities.
+.TP
+\fB-t\fR
+Turns on timings.  This tells Expat to parse the entire file,
+but not perform any processing.
+This gives a fairly accurate idea of the raw speed of Expat itself
+without client overhead.
+\fB-t\fR turns off most of the output options
+(\fB-d\fR, \fB-m\fR, \fB-c\fR,
+\&...).
+.TP
+\fB-v\fR
+Prints the version of the Expat library being used, including some
+information on the compile-time configuration of the library, and
+then exits.
+.TP
+\fB-w\fR
+Enables support for Windows code pages.
+Normally, \fBxmlwf\fR will throw an error if it
+runs across an encoding that it is not equipped to handle itself.  With
+\fB-w\fR, xmlwf will try to use a Windows code
+page.  See also \fB-e\fR.
+.TP
+\fB-x\fR
+Turns on parsing external entities.
+
+Non-validating parsers are not required to resolve external
+entities, or even expand entities at all.
+Expat always expands internal entities (?),
+but external entity parsing must be enabled explicitly.
+
+External entities are simply entities that obtain their
+data from outside the XML file currently being parsed.
+
+This is an example of an internal entity:
+
+.nf
+<!ENTITY vers '1.0.2'>
+.fi
+
+And here are some examples of external entities:
+
+.nf
+<!ENTITY header SYSTEM "header-&vers;.xml">  (parsed)
+<!ENTITY logo SYSTEM "logo.png" PNG>         (unparsed)
+.fi
+.TP
+\fB--\fR
+(Two hyphens.)
+Terminates the list of options.  This is only needed if a filename
+starts with a hyphen.  For example:
+
+.nf
+xmlwf -- -myfile.xml
+.fi
+
+will run \fBxmlwf\fR on the file
+\fI-myfile.xml\fR.
+.PP
+Older versions of \fBxmlwf\fR do not support
+reading from standard input.
+.SH "OUTPUT"
+.PP
+If an input file is not well-formed,
+\fBxmlwf\fR prints a single line describing
+the problem to standard output.  If a file is well formed,
+\fBxmlwf\fR outputs nothing.
+Note that the result code is \fBnot\fR set.
+.SH "BUGS"
+.PP
+According to the W3C standard, an XML file without a
+declaration at the beginning is not considered well-formed.
+However, \fBxmlwf\fR allows this to pass.
+.PP
+\fBxmlwf\fR returns a 0 - noerr result,
+even if the file is not well-formed.  There is no good way for
+a program to use \fBxmlwf\fR to quickly
+check a file -- it must parse \fBxmlwf\fR's
+standard output.
+.PP
+The errors should go to standard error, not standard output.
+.PP
+There should be a way to get \fB-d\fR to send its
+output to standard output rather than forcing the user to send
+it to a file.
+.PP
+I have no idea why anyone would want to use the
+\fB-d\fR, \fB-c\fR, and
+\fB-m\fR options.  If someone could explain it to
+me, I'd like to add this information to this manpage.
+.SH "ALTERNATIVES"
+.PP
+Here are some XML validators on the web:
+
+.nf
+http://www.hcrc.ed.ac.uk/~richard/xml-check.html
+http://www.stg.brown.edu/service/xmlvalid/
+http://www.scripting.com/frontier5/xml/code/xmlValidator.html
+http://www.xml.com/pub/a/tools/ruwf/check.html
+.fi
+.SH "SEE ALSO"
+.PP
+
+.nf
+The Expat home page:        http://www.libexpat.org/
+The W3 XML specification:   http://www.w3.org/TR/REC-xml
+.fi
+.SH "AUTHOR"
+.PP
+This manual page was written by Scott Bronson <bronson@rinspin.com> for
+the Debian GNU/Linux system (but may be used by others).  Permission is
+granted to copy, distribute and/or modify this document under
+the terms of the GNU Free Documentation
+License, Version 1.1.
diff --git a/lib/libexpat/doc/xmlwf.sgml b/lib/libexpat/doc/xmlwf.sgml
new file mode 100644
index 00000000000..139c95e1f11
--- /dev/null
+++ b/lib/libexpat/doc/xmlwf.sgml
@@ -0,0 +1,473 @@
+<!doctype refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN" [
+
+<!-- Process this file with docbook-to-man to generate an nroff manual
+     page: `docbook-to-man manpage.sgml > manpage.1'.  You may view
+     the manual page with: `docbook-to-man manpage.sgml | nroff -man |
+     less'.  A typical entry in a Makefile or Makefile.am is:
+
+manpage.1: manpage.sgml
+	docbook-to-man $< > $@
+  -->
+
+  <!-- Fill in your name for FIRSTNAME and SURNAME. -->
+  <!ENTITY dhfirstname "<firstname>Scott</firstname>">
+  <!ENTITY dhsurname   "<surname>Bronson</surname>">
+  <!-- Please adjust the date whenever revising the manpage. -->
+  <!ENTITY dhdate      "<date>December  5, 2001</date>">
+  <!-- SECTION should be 1-8, maybe w/ subsection other parameters are
+       allowed: see man(7), man(1). -->
+  <!ENTITY dhsection   "<manvolnum>1</manvolnum>">
+  <!ENTITY dhemail     "<email>bronson@rinspin.com</email>">
+  <!ENTITY dhusername  "Scott Bronson">
+  <!ENTITY dhucpackage "<refentrytitle>XMLWF</refentrytitle>">
+  <!ENTITY dhpackage   "xmlwf">
+
+  <!ENTITY debian      "<productname>Debian GNU/Linux</productname>">
+  <!ENTITY gnu         "<acronym>GNU</acronym>">
+]>
+
+<refentry>
+  <refentryinfo>
+    <address>
+      &dhemail;
+    </address>
+    <author>
+      &dhfirstname;
+      &dhsurname;
+    </author>
+    <copyright>
+      <year>2001</year>
+      <holder>&dhusername;</holder>
+    </copyright>
+    &dhdate;
+  </refentryinfo>
+  <refmeta>
+    &dhucpackage;
+
+    &dhsection;
+  </refmeta>
+  <refnamediv>
+    <refname>&dhpackage;</refname>
+
+    <refpurpose>Determines if an XML document is well-formed</refpurpose>
+  </refnamediv>
+  <refsynopsisdiv>
+    <cmdsynopsis>
+      <command>&dhpackage;</command>
+	  <arg><option>-s</option></arg>
+	  <arg><option>-n</option></arg>
+	  <arg><option>-p</option></arg>
+	  <arg><option>-x</option></arg>
+
+	  <arg><option>-e <replaceable>encoding</replaceable></option></arg>
+	  <arg><option>-w</option></arg>
+
+	  <arg><option>-d <replaceable>output-dir</replaceable></option></arg>
+	  <arg><option>-c</option></arg>
+	  <arg><option>-m</option></arg>
+
+	  <arg><option>-r</option></arg>
+	  <arg><option>-t</option></arg>
+
+	  <arg><option>-v</option></arg>
+
+	  <arg>file ...</arg>
+    </cmdsynopsis>
+  </refsynopsisdiv>
+ 
+  <refsect1>
+    <title>DESCRIPTION</title>
+
+    <para>
+	<command>&dhpackage;</command> uses the Expat library to
+	determine if an XML document is well-formed.  It is
+	non-validating.
+	</para>
+
+	<para>
+	If you do not specify any files on the command-line, and you
+	have a recent version of <command>&dhpackage;</command>, the
+	input file will be read from standard input.
+	</para>
+
+  </refsect1>
+
+  <refsect1>
+    <title>WELL-FORMED DOCUMENTS</title>
+
+	<para>
+	  A well-formed document must adhere to the
+	  following rules:
+	</para>
+
+	<itemizedlist>
+      <listitem><para>
+	    The file begins with an XML declaration.  For instance,
+		<literal>&lt;?xml version="1.0" standalone="yes"?&gt;</literal>.
+		<emphasis>NOTE:</emphasis>
+		<command>&dhpackage;</command> does not currently
+		check for a valid XML declaration.
+      </para></listitem>
+      <listitem><para>
+		Every start tag is either empty (&lt;tag/&gt;)
+		or has a corresponding end tag.
+      </para></listitem>
+      <listitem><para>
+	    There is exactly one root element.  This element must contain
+		all other elements in the document.  Only comments, white
+		space, and processing instructions may come after the close
+		of the root element.
+      </para></listitem>
+      <listitem><para>
+		All elements nest properly.
+      </para></listitem>
+      <listitem><para>
+		All attribute values are enclosed in quotes (either single
+		or double).
+      </para></listitem>
+    </itemizedlist>
+
+	<para>
+	  If the document has a DTD, and it strictly complies with that
+	  DTD, then the document is also considered <emphasis>valid</emphasis>.
+	  <command>&dhpackage;</command> is a non-validating parser --
+	  it does not check the DTD.  However, it does support
+	  external entities (see the <option>-x</option> option).
+	</para>
+  </refsect1>
+
+  <refsect1>
+    <title>OPTIONS</title>
+
+<para>
+When an option includes an argument, you may specify the argument either
+separately ("<option>-d</option> output") or concatenated with the
+option ("<option>-d</option>output").  <command>&dhpackage;</command>
+supports both.
+</para>
+
+    <variablelist>
+
+      <varlistentry>
+        <term><option>-c</option></term>
+        <listitem>
+		<para>
+  If the input file is well-formed and <command>&dhpackage;</command>
+  doesn't encounter any errors, the input file is simply copied to
+  the output directory unchanged.
+  This implies no namespaces (turns off <option>-n</option>) and
+  requires <option>-d</option> to specify an output file.
+  		</para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-d output-dir</option></term>
+        <listitem>
+		<para>
+  Specifies a directory to contain transformed
+  representations of the input files.
+  By default, <option>-d</option> outputs a canonical representation
+  (described below).
+  You can select different output formats using <option>-c</option>
+  and <option>-m</option>.
+	  </para>
+	  <para>
+  The output filenames will
+  be exactly the same as the input filenames or "STDIN" if the input is
+  coming from standard input.  Therefore, you must be careful that the
+  output file does not go into the same directory as the input
+  file.  Otherwise, <command>&dhpackage;</command> will delete the
+  input file before it generates the output file (just like running
+  <literal>cat &lt; file &gt; file</literal> in most shells).
+	  </para>
+	  <para> 
+  Two structurally equivalent XML documents have a byte-for-byte
+  identical canonical XML representation.
+  Note that ignorable white space is considered significant and
+  is treated equivalently to data.
+  More on canonical XML can be found at
+  http://www.jclark.com/xml/canonxml.html .
+	  </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-e encoding</option></term>
+        <listitem>
+		<para>
+   Specifies the character encoding for the document, overriding
+   any document encoding declaration.  <command>&dhpackage;</command>
+   supports four built-in encodings:
+   	<literal>US-ASCII</literal>,
+	<literal>UTF-8</literal>,
+	<literal>UTF-16</literal>, and
+	<literal>ISO-8859-1</literal>.
+   Also see the <option>-w</option> option.
+	   </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-m</option></term>
+        <listitem>
+		<para>
+  Outputs some strange sort of XML file that completely
+  describes the the input file, including character postitions.
+  Requires <option>-d</option> to specify an output file.
+	   </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-n</option></term>
+        <listitem>
+		<para>
+  Turns on namespace processing.  (describe namespaces)
+  <option>-c</option> disables namespaces.
+	   </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-p</option></term>
+        <listitem>
+		<para>
+    Tells xmlwf to process external DTDs and parameter
+    entities.
+	 </para>
+	 <para>
+   Normally <command>&dhpackage;</command> never parses parameter
+   entities.  <option>-p</option> tells it to always parse them.
+   <option>-p</option> implies <option>-x</option>.
+	   </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-r</option></term>
+        <listitem>
+		<para>
+   Normally <command>&dhpackage;</command> memory-maps the XML file
+   before parsing; this can result in faster parsing on many
+   platforms.
+   <option>-r</option> turns off memory-mapping and uses normal file
+   IO calls instead.
+   Of course, memory-mapping is automatically turned off
+   when reading from standard input.
+	   </para>
+		<para>
+   Use of memory-mapping can cause some platforms to report
+   substantially higher memory usage for
+   <command>&dhpackage;</command>, but this appears to be a matter of
+   the operating system reporting memory in a strange way; there is
+   not a leak in <command>&dhpackage;</command>.
+           </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-s</option></term>
+        <listitem>
+		<para>
+  Prints an error if the document is not standalone. 
+  A document is standalone if it has no external subset and no
+  references to parameter entities.
+	   </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-t</option></term>
+        <listitem>
+		<para>
+  Turns on timings.  This tells Expat to parse the entire file,
+  but not perform any processing.
+  This gives a fairly accurate idea of the raw speed of Expat itself
+  without client overhead.
+  <option>-t</option> turns off most of the output options
+  (<option>-d</option>, <option>-m</option>, <option>-c</option>,
+  ...).
+	   </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-v</option></term>
+        <listitem>
+		<para>
+  Prints the version of the Expat library being used, including some
+  information on the compile-time configuration of the library, and
+  then exits.
+	   </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-w</option></term>
+        <listitem>
+		<para>
+  Enables support for Windows code pages.
+  Normally, <command>&dhpackage;</command> will throw an error if it
+  runs across an encoding that it is not equipped to handle itself.  With
+  <option>-w</option>, &dhpackage; will try to use a Windows code
+  page.  See also <option>-e</option>.
+	   </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-x</option></term>
+        <listitem>
+		<para>
+  Turns on parsing external entities.
+  </para>
+<para>
+  Non-validating parsers are not required to resolve external
+  entities, or even expand entities at all.
+  Expat always expands internal entities (?),
+  but external entity parsing must be enabled explicitly.
+  </para>
+  <para>
+  External entities are simply entities that obtain their
+  data from outside the XML file currently being parsed.
+  </para>
+  <para>
+  This is an example of an internal entity:
+<literallayout>
+&lt;!ENTITY vers '1.0.2'&gt;
+</literallayout>
+  </para>
+  <para>
+  And here are some examples of external entities:
+
+<literallayout>
+&lt;!ENTITY header SYSTEM "header-&amp;vers;.xml"&gt;  (parsed)
+&lt;!ENTITY logo SYSTEM "logo.png" PNG&gt;         (unparsed)
+</literallayout>
+
+	   </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>--</option></term>
+        <listitem>
+		<para>
+    (Two hyphens.)
+    Terminates the list of options.  This is only needed if a filename
+    starts with a hyphen.  For example:
+	   </para>
+<literallayout>
+&dhpackage; -- -myfile.xml
+</literallayout>
+		<para>
+    will run <command>&dhpackage;</command> on the file
+    <filename>-myfile.xml</filename>.
+	   </para>
+        </listitem>
+      </varlistentry>
+    </variablelist>
+
+	<para>
+    Older versions of <command>&dhpackage;</command> do not support
+    reading from standard input.
+	</para>
+  </refsect1>
+
+  <refsect1>
+  <title>OUTPUT</title>
+    <para>
+	If an input file is not well-formed,
+	<command>&dhpackage;</command> prints a single line describing
+	the problem to standard output.  If a file is well formed,
+	<command>&dhpackage;</command> outputs nothing.
+	Note that the result code is <emphasis>not</emphasis> set.
+	</para>
+  </refsect1>
+  
+  <refsect1>
+    <title>BUGS</title>
+	<para>
+	According to the W3C standard, an XML file without a
+	declaration at the beginning is not considered well-formed.
+	However, <command>&dhpackage;</command> allows this to pass.
+	</para>
+	<para>
+	<command>&dhpackage;</command> returns a 0 - noerr result,
+	even if the file is not well-formed.  There is no good way for
+	a program to use <command>&dhpackage;</command> to quickly
+	check a file -- it must parse <command>&dhpackage;</command>'s
+	standard output.
+	</para>
+	<para>
+	The errors should go to standard error, not standard output.
+	</para>
+	<para>
+	There should be a way to get <option>-d</option> to send its
+	output to standard output rather than forcing the user to send
+	it to a file.
+	</para>
+	<para>
+	I have no idea why anyone would want to use the
+	<option>-d</option>, <option>-c</option>, and
+	<option>-m</option> options.  If someone could explain it to
+	me, I'd like to add this information to this manpage.
+	</para>
+  </refsect1>
+
+  <refsect1>
+    <title>ALTERNATIVES</title>
+	<para>
+	  Here are some XML validators on the web:
+
+<literallayout>
+http://www.hcrc.ed.ac.uk/~richard/xml-check.html
+http://www.stg.brown.edu/service/xmlvalid/
+http://www.scripting.com/frontier5/xml/code/xmlValidator.html
+http://www.xml.com/pub/a/tools/ruwf/check.html
+</literallayout>
+
+		 </para>
+  </refsect1>
+
+  <refsect1>
+    <title>SEE ALSO</title>
+	<para>
+
+<literallayout>
+The Expat home page:        http://www.libexpat.org/
+The W3 XML specification:   http://www.w3.org/TR/REC-xml
+</literallayout>
+
+	</para>
+  </refsect1>
+
+  <refsect1>
+    <title>AUTHOR</title>
+    <para>
+	  This manual page was written by &dhusername; &dhemail; for
+      the &debian; system (but may be used by others).  Permission is
+      granted to copy, distribute and/or modify this document under
+      the terms of the <acronym>GNU</acronym> Free Documentation
+      License, Version 1.1.
+	</para>
+  </refsect1>
+</refentry>
+
+<!-- Keep this comment at the end of the file
+Local variables:
+mode: sgml
+sgml-omittag:t
+sgml-shorttag:t
+sgml-minimize-attributes:nil
+sgml-always-quote-attributes:t
+sgml-indent-step:2
+sgml-indent-data:t
+sgml-parent-document:nil
+sgml-default-dtd-file:nil
+sgml-exposed-tags:nil
+sgml-local-catalogs:nil
+sgml-local-ecat-files:nil
+End:
+-->
diff --git a/lib/libexpat/examples/elements.c b/lib/libexpat/examples/elements.c
new file mode 100644
index 00000000000..4ed4da6a346
--- /dev/null
+++ b/lib/libexpat/examples/elements.c
@@ -0,0 +1,50 @@
+/* This is simple demonstration of how to use expat. This program
+   reads an XML document from standard input and writes a line with
+   the name of each element to standard output indenting child
+   elements by one tab stop more than their parent element.
+*/
+
+#include <stdio.h>
+#include "expat.h"
+
+static void
+startElement(void *userData, const char *name, const char **atts)
+{
+  int i;
+  int *depthPtr = userData;
+  for (i = 0; i < *depthPtr; i++)
+    putchar('\t');
+  puts(name);
+  *depthPtr += 1;
+}
+
+static void
+endElement(void *userData, const char *name)
+{
+  int *depthPtr = userData;
+  *depthPtr -= 1;
+}
+
+int
+main(int argc, char *argv[])
+{
+  char buf[BUFSIZ];
+  XML_Parser parser = XML_ParserCreate(NULL);
+  int done;
+  int depth = 0;
+  XML_SetUserData(parser, &depth);
+  XML_SetElementHandler(parser, startElement, endElement);
+  do {
+    size_t len = fread(buf, 1, sizeof(buf), stdin);
+    done = len < sizeof(buf);
+    if (XML_Parse(parser, buf, len, done) == XML_STATUS_ERROR) {
+      fprintf(stderr,
+              "%s at line %d\n",
+              XML_ErrorString(XML_GetErrorCode(parser)),
+              XML_GetCurrentLineNumber(parser));
+      return 1;
+    }
+  } while (!done);
+  XML_ParserFree(parser);
+  return 0;
+}
diff --git a/lib/libexpat/examples/outline.c b/lib/libexpat/examples/outline.c
new file mode 100644
index 00000000000..10f6d1db5b8
--- /dev/null
+++ b/lib/libexpat/examples/outline.c
@@ -0,0 +1,90 @@
+/*****************************************************************
+ * outline.c
+ *
+ * Copyright 1999, Clark Cooper
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the license contained in the
+ * COPYING file that comes with the expat distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Read an XML document from standard input and print an element
+ * outline on standard output.
+ */
+
+
+#include <stdio.h>
+#include <expat.h>
+
+#define BUFFSIZE        8192
+
+char Buff[BUFFSIZE];
+
+int Depth;
+
+static void
+start(void *data, const char *el, const char **attr)
+{
+  int i;
+
+  for (i = 0; i < Depth; i++)
+    printf("  ");
+
+  printf("%s", el);
+
+  for (i = 0; attr[i]; i += 2) {
+    printf(" %s='%s'", attr[i], attr[i + 1]);
+  }
+
+  printf("\n");
+  Depth++;
+}
+
+static void
+end(void *data, const char *el)
+{
+  Depth--;
+}
+
+int
+main(int argc, char *argv[])
+{
+  XML_Parser p = XML_ParserCreate(NULL);
+  if (! p) {
+    fprintf(stderr, "Couldn't allocate memory for parser\n");
+    exit(-1);
+  }
+
+  XML_SetElementHandler(p, start, end);
+
+  for (;;) {
+    int done;
+    int len;
+
+    len = fread(Buff, 1, BUFFSIZE, stdin);
+    if (ferror(stdin)) {
+      fprintf(stderr, "Read error\n");
+      exit(-1);
+    }
+    done = feof(stdin);
+
+    if (XML_Parse(p, Buff, len, done) == XML_STATUS_ERROR) {
+      fprintf(stderr, "Parse error at line %d:\n%s\n",
+              XML_GetCurrentLineNumber(p),
+              XML_ErrorString(XML_GetErrorCode(p)));
+      exit(-1);
+    }
+
+    if (done)
+      break;
+  }
+  return 0;
+}
diff --git a/lib/libexpat/lib/ascii.h b/lib/libexpat/lib/ascii.h
new file mode 100644
index 00000000000..337e5bb7ea0
--- /dev/null
+++ b/lib/libexpat/lib/ascii.h
@@ -0,0 +1,85 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+#define ASCII_A 0x41
+#define ASCII_B 0x42
+#define ASCII_C 0x43
+#define ASCII_D 0x44
+#define ASCII_E 0x45
+#define ASCII_F 0x46
+#define ASCII_G 0x47
+#define ASCII_H 0x48
+#define ASCII_I 0x49
+#define ASCII_J 0x4A
+#define ASCII_K 0x4B
+#define ASCII_L 0x4C
+#define ASCII_M 0x4D
+#define ASCII_N 0x4E
+#define ASCII_O 0x4F
+#define ASCII_P 0x50
+#define ASCII_Q 0x51
+#define ASCII_R 0x52
+#define ASCII_S 0x53
+#define ASCII_T 0x54
+#define ASCII_U 0x55
+#define ASCII_V 0x56
+#define ASCII_W 0x57
+#define ASCII_X 0x58
+#define ASCII_Y 0x59
+#define ASCII_Z 0x5A
+
+#define ASCII_a 0x61
+#define ASCII_b 0x62
+#define ASCII_c 0x63
+#define ASCII_d 0x64
+#define ASCII_e 0x65
+#define ASCII_f 0x66
+#define ASCII_g 0x67
+#define ASCII_h 0x68
+#define ASCII_i 0x69
+#define ASCII_j 0x6A
+#define ASCII_k 0x6B
+#define ASCII_l 0x6C
+#define ASCII_m 0x6D
+#define ASCII_n 0x6E
+#define ASCII_o 0x6F
+#define ASCII_p 0x70
+#define ASCII_q 0x71
+#define ASCII_r 0x72
+#define ASCII_s 0x73
+#define ASCII_t 0x74
+#define ASCII_u 0x75
+#define ASCII_v 0x76
+#define ASCII_w 0x77
+#define ASCII_x 0x78
+#define ASCII_y 0x79
+#define ASCII_z 0x7A
+
+#define ASCII_0 0x30
+#define ASCII_1 0x31
+#define ASCII_2 0x32
+#define ASCII_3 0x33
+#define ASCII_4 0x34
+#define ASCII_5 0x35
+#define ASCII_6 0x36
+#define ASCII_7 0x37
+#define ASCII_8 0x38
+#define ASCII_9 0x39
+
+#define ASCII_TAB 0x09
+#define ASCII_SPACE 0x20
+#define ASCII_EXCL 0x21
+#define ASCII_QUOT 0x22
+#define ASCII_AMP 0x26
+#define ASCII_APOS 0x27
+#define ASCII_MINUS 0x2D
+#define ASCII_PERIOD 0x2E
+#define ASCII_COLON 0x3A
+#define ASCII_SEMI 0x3B
+#define ASCII_LT 0x3C
+#define ASCII_EQUALS 0x3D
+#define ASCII_GT 0x3E
+#define ASCII_LSQB 0x5B
+#define ASCII_RSQB 0x5D
+#define ASCII_UNDERSCORE 0x5F
diff --git a/lib/libexpat/lib/asciitab.h b/lib/libexpat/lib/asciitab.h
new file mode 100644
index 00000000000..79a15c28ca1
--- /dev/null
+++ b/lib/libexpat/lib/asciitab.h
@@ -0,0 +1,36 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+/* 0x00 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x04 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x08 */ BT_NONXML, BT_S, BT_LF, BT_NONXML,
+/* 0x0C */ BT_NONXML, BT_CR, BT_NONXML, BT_NONXML,
+/* 0x10 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x14 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x18 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x1C */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x20 */ BT_S, BT_EXCL, BT_QUOT, BT_NUM,
+/* 0x24 */ BT_OTHER, BT_PERCNT, BT_AMP, BT_APOS,
+/* 0x28 */ BT_LPAR, BT_RPAR, BT_AST, BT_PLUS,
+/* 0x2C */ BT_COMMA, BT_MINUS, BT_NAME, BT_SOL,
+/* 0x30 */ BT_DIGIT, BT_DIGIT, BT_DIGIT, BT_DIGIT,
+/* 0x34 */ BT_DIGIT, BT_DIGIT, BT_DIGIT, BT_DIGIT,
+/* 0x38 */ BT_DIGIT, BT_DIGIT, BT_COLON, BT_SEMI,
+/* 0x3C */ BT_LT, BT_EQUALS, BT_GT, BT_QUEST,
+/* 0x40 */ BT_OTHER, BT_HEX, BT_HEX, BT_HEX,
+/* 0x44 */ BT_HEX, BT_HEX, BT_HEX, BT_NMSTRT,
+/* 0x48 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x4C */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x50 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x54 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x58 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_LSQB,
+/* 0x5C */ BT_OTHER, BT_RSQB, BT_OTHER, BT_NMSTRT,
+/* 0x60 */ BT_OTHER, BT_HEX, BT_HEX, BT_HEX,
+/* 0x64 */ BT_HEX, BT_HEX, BT_HEX, BT_NMSTRT,
+/* 0x68 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x6C */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x70 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x74 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x78 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_OTHER,
+/* 0x7C */ BT_VERBAR, BT_OTHER, BT_OTHER, BT_OTHER,
diff --git a/lib/libexpat/lib/expat.h b/lib/libexpat/lib/expat.h
new file mode 100644
index 00000000000..0b70302dbf9
--- /dev/null
+++ b/lib/libexpat/lib/expat.h
@@ -0,0 +1,926 @@
+/* Copyright (c) 1998, 1999, 2000 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+#ifndef XmlParse_INCLUDED
+#define XmlParse_INCLUDED 1
+
+#ifdef __VMS
+/*      0        1         2         3      0        1         2         3
+        1234567890123456789012345678901     1234567890123456789012345678901 */
+#define XML_SetProcessingInstructionHandler XML_SetProcessingInstrHandler
+#define XML_SetUnparsedEntityDeclHandler    XML_SetUnparsedEntDeclHandler
+#define XML_SetStartNamespaceDeclHandler    XML_SetStartNamespcDeclHandler
+#define XML_SetExternalEntityRefHandlerArg  XML_SetExternalEntRefHandlerArg
+#endif
+
+#include <stdlib.h>
+
+#ifndef XMLPARSEAPI
+#if defined(_MSC_EXTENSIONS) && !defined(__BEOS__) && !defined(__CYGWIN__)
+#ifdef XML_STATIC
+#define XMLPARSEAPI(type) type __cdecl
+#else
+#define XMLPARSEAPI(type) __declspec(dllimport) type __cdecl
+#endif
+#else
+#define XMLPARSEAPI(type) type
+#endif
+#endif  /* not defined XMLPARSEAPI */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef XML_UNICODE_WCHAR_T
+#define XML_UNICODE
+#endif
+
+struct XML_ParserStruct;
+typedef struct XML_ParserStruct *XML_Parser;
+
+#ifdef XML_UNICODE     /* Information is UTF-16 encoded. */
+#ifdef XML_UNICODE_WCHAR_T
+typedef wchar_t XML_Char;
+typedef wchar_t XML_LChar;
+#else
+typedef unsigned short XML_Char;
+typedef char XML_LChar;
+#endif /* XML_UNICODE_WCHAR_T */
+#else                  /* Information is UTF-8 encoded. */
+typedef char XML_Char;
+typedef char XML_LChar;
+#endif /* XML_UNICODE */
+
+/* Should this be defined using stdbool.h when C99 is available? */
+typedef unsigned char XML_Bool;
+#define XML_TRUE   ((XML_Bool) 1)
+#define XML_FALSE  ((XML_Bool) 0)
+
+enum XML_Error {
+  XML_ERROR_NONE,
+  XML_ERROR_NO_MEMORY,
+  XML_ERROR_SYNTAX,
+  XML_ERROR_NO_ELEMENTS,
+  XML_ERROR_INVALID_TOKEN,
+  XML_ERROR_UNCLOSED_TOKEN,
+  XML_ERROR_PARTIAL_CHAR,
+  XML_ERROR_TAG_MISMATCH,
+  XML_ERROR_DUPLICATE_ATTRIBUTE,
+  XML_ERROR_JUNK_AFTER_DOC_ELEMENT,
+  XML_ERROR_PARAM_ENTITY_REF,
+  XML_ERROR_UNDEFINED_ENTITY,
+  XML_ERROR_RECURSIVE_ENTITY_REF,
+  XML_ERROR_ASYNC_ENTITY,
+  XML_ERROR_BAD_CHAR_REF,
+  XML_ERROR_BINARY_ENTITY_REF,
+  XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF,
+  XML_ERROR_MISPLACED_XML_PI,
+  XML_ERROR_UNKNOWN_ENCODING,
+  XML_ERROR_INCORRECT_ENCODING,
+  XML_ERROR_UNCLOSED_CDATA_SECTION,
+  XML_ERROR_EXTERNAL_ENTITY_HANDLING,
+  XML_ERROR_NOT_STANDALONE,
+  XML_ERROR_UNEXPECTED_STATE,
+  XML_ERROR_ENTITY_DECLARED_IN_PE,
+  XML_ERROR_FEATURE_REQUIRES_XML_DTD,
+  XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING
+};
+
+enum XML_Content_Type {
+  XML_CTYPE_EMPTY = 1,
+  XML_CTYPE_ANY,
+  XML_CTYPE_MIXED,
+  XML_CTYPE_NAME,
+  XML_CTYPE_CHOICE,
+  XML_CTYPE_SEQ
+};
+
+enum XML_Content_Quant {
+  XML_CQUANT_NONE,
+  XML_CQUANT_OPT,
+  XML_CQUANT_REP,
+  XML_CQUANT_PLUS
+};
+
+/* If type == XML_CTYPE_EMPTY or XML_CTYPE_ANY, then quant will be
+   XML_CQUANT_NONE, and the other fields will be zero or NULL.
+   If type == XML_CTYPE_MIXED, then quant will be NONE or REP and
+   numchildren will contain number of elements that may be mixed in
+   and children point to an array of XML_Content cells that will be
+   all of XML_CTYPE_NAME type with no quantification.
+
+   If type == XML_CTYPE_NAME, then the name points to the name, and
+   the numchildren field will be zero and children will be NULL. The
+   quant fields indicates any quantifiers placed on the name.
+
+   CHOICE and SEQ will have name NULL, the number of children in
+   numchildren and children will point, recursively, to an array
+   of XML_Content cells.
+
+   The EMPTY, ANY, and MIXED types will only occur at top level.
+*/
+
+typedef struct XML_cp XML_Content;
+
+struct XML_cp {
+  enum XML_Content_Type         type;
+  enum XML_Content_Quant        quant;
+  XML_Char *                    name;
+  unsigned int                  numchildren;
+  XML_Content *                 children;
+};
+
+
+/* This is called for an element declaration. See above for
+   description of the model argument. It's the caller's responsibility
+   to free model when finished with it.
+*/
+typedef void (*XML_ElementDeclHandler) (void *userData,
+                                        const XML_Char *name,
+                                        XML_Content *model);
+
+XMLPARSEAPI(void)
+XML_SetElementDeclHandler(XML_Parser parser,
+                          XML_ElementDeclHandler eldecl);
+
+/* The Attlist declaration handler is called for *each* attribute. So
+   a single Attlist declaration with multiple attributes declared will
+   generate multiple calls to this handler. The "default" parameter
+   may be NULL in the case of the "#IMPLIED" or "#REQUIRED"
+   keyword. The "isrequired" parameter will be true and the default
+   value will be NULL in the case of "#REQUIRED". If "isrequired" is
+   true and default is non-NULL, then this is a "#FIXED" default.
+*/
+typedef void (*XML_AttlistDeclHandler) (void           *userData,
+                                        const XML_Char *elname,
+                                        const XML_Char *attname,
+                                        const XML_Char *att_type,
+                                        const XML_Char *dflt,
+                                        int             isrequired);
+
+XMLPARSEAPI(void)
+XML_SetAttlistDeclHandler(XML_Parser parser,
+                          XML_AttlistDeclHandler attdecl);
+
+/* The XML declaration handler is called for *both* XML declarations
+   and text declarations. The way to distinguish is that the version
+   parameter will be NULL for text declarations. The encoding
+   parameter may be NULL for XML declarations. The standalone
+   parameter will be -1, 0, or 1 indicating respectively that there
+   was no standalone parameter in the declaration, that it was given
+   as no, or that it was given as yes.
+*/
+typedef void (*XML_XmlDeclHandler) (void                *userData,
+                                    const XML_Char      *version,
+                                    const XML_Char      *encoding,
+                                    int                  standalone);
+
+XMLPARSEAPI(void)
+XML_SetXmlDeclHandler(XML_Parser parser,
+                      XML_XmlDeclHandler xmldecl);
+
+
+typedef struct {
+  void *(*malloc_fcn)(size_t size);
+  void *(*realloc_fcn)(void *ptr, size_t size);
+  void (*free_fcn)(void *ptr);
+} XML_Memory_Handling_Suite;
+
+/* Constructs a new parser; encoding is the encoding specified by the
+   external protocol or NULL if there is none specified.
+*/
+XMLPARSEAPI(XML_Parser)
+XML_ParserCreate(const XML_Char *encoding);
+
+/* Constructs a new parser and namespace processor.  Element type
+   names and attribute names that belong to a namespace will be
+   expanded; unprefixed attribute names are never expanded; unprefixed
+   element type names are expanded only if there is a default
+   namespace. The expanded name is the concatenation of the namespace
+   URI, the namespace separator character, and the local part of the
+   name.  If the namespace separator is '\0' then the namespace URI
+   and the local part will be concatenated without any separator.
+   When a namespace is not declared, the name and prefix will be
+   passed through without expansion.
+*/
+XMLPARSEAPI(XML_Parser)
+XML_ParserCreateNS(const XML_Char *encoding, XML_Char namespaceSeparator);
+
+
+/* Constructs a new parser using the memory management suite referred to
+   by memsuite. If memsuite is NULL, then use the standard library memory
+   suite. If namespaceSeparator is non-NULL it creates a parser with
+   namespace processing as described above. The character pointed at
+   will serve as the namespace separator.
+
+   All further memory operations used for the created parser will come from
+   the given suite.
+*/
+XMLPARSEAPI(XML_Parser)
+XML_ParserCreate_MM(const XML_Char *encoding,
+                    const XML_Memory_Handling_Suite *memsuite,
+                    const XML_Char *namespaceSeparator);
+
+/* Prepare a parser object to be re-used.  This is particularly
+   valuable when memory allocation overhead is disproportionatly high,
+   such as when a large number of small documnents need to be parsed.
+   All handlers are cleared from the parser, except for the
+   unknownEncodingHandler. The parser's external state is re-initialized
+   except for the values of ns and ns_triplets.
+
+   Added in Expat 1.95.3.
+*/
+XMLPARSEAPI(XML_Bool)
+XML_ParserReset(XML_Parser parser, const XML_Char *encoding);
+
+/* atts is array of name/value pairs, terminated by 0;
+   names and values are 0 terminated.
+*/
+typedef void (*XML_StartElementHandler)(void *userData,
+                                        const XML_Char *name,
+                                        const XML_Char **atts);
+
+typedef void (*XML_EndElementHandler)(void *userData,
+                                      const XML_Char *name);
+
+
+/* s is not 0 terminated. */
+typedef void (*XML_CharacterDataHandler)(void *userData,
+                                         const XML_Char *s,
+                                         int len);
+
+/* target and data are 0 terminated */
+typedef void (*XML_ProcessingInstructionHandler)(void *userData,
+                                                 const XML_Char *target,
+                                                 const XML_Char *data);
+
+/* data is 0 terminated */
+typedef void (*XML_CommentHandler)(void *userData, const XML_Char *data);
+
+typedef void (*XML_StartCdataSectionHandler)(void *userData);
+typedef void (*XML_EndCdataSectionHandler)(void *userData);
+
+/* This is called for any characters in the XML document for which
+   there is no applicable handler.  This includes both characters that
+   are part of markup which is of a kind that is not reported
+   (comments, markup declarations), or characters that are part of a
+   construct which could be reported but for which no handler has been
+   supplied. The characters are passed exactly as they were in the XML
+   document except that they will be encoded in UTF-8 or UTF-16.
+   Line boundaries are not normalized. Note that a byte order mark
+   character is not passed to the default handler. There are no
+   guarantees about how characters are divided between calls to the
+   default handler: for example, a comment might be split between
+   multiple calls.
+*/
+typedef void (*XML_DefaultHandler)(void *userData,
+                                   const XML_Char *s,
+                                   int len);
+
+/* This is called for the start of the DOCTYPE declaration, before
+   any DTD or internal subset is parsed.
+*/
+typedef void (*XML_StartDoctypeDeclHandler)(void *userData,
+                                            const XML_Char *doctypeName,
+                                            const XML_Char *sysid,
+                                            const XML_Char *pubid,
+                                            int has_internal_subset);
+
+/* This is called for the start of the DOCTYPE declaration when the
+   closing > is encountered, but after processing any external
+   subset.
+*/
+typedef void (*XML_EndDoctypeDeclHandler)(void *userData);
+
+/* This is called for entity declarations. The is_parameter_entity
+   argument will be non-zero if the entity is a parameter entity, zero
+   otherwise.
+
+   For internal entities (<!ENTITY foo "bar">), value will
+   be non-NULL and systemId, publicID, and notationName will be NULL.
+   The value string is NOT nul-terminated; the length is provided in
+   the value_length argument. Since it is legal to have zero-length
+   values, do not use this argument to test for internal entities.
+
+   For external entities, value will be NULL and systemId will be
+   non-NULL. The publicId argument will be NULL unless a public
+   identifier was provided. The notationName argument will have a
+   non-NULL value only for unparsed entity declarations.
+
+   Note that is_parameter_entity can't be changed to XML_Bool, since
+   that would break binary compatibility.
+*/
+typedef void (*XML_EntityDeclHandler) (void *userData,
+                                       const XML_Char *entityName,
+                                       int is_parameter_entity,
+                                       const XML_Char *value,
+                                       int value_length,
+                                       const XML_Char *base,
+                                       const XML_Char *systemId,
+                                       const XML_Char *publicId,
+                                       const XML_Char *notationName);
+
+XMLPARSEAPI(void)
+XML_SetEntityDeclHandler(XML_Parser parser,
+                         XML_EntityDeclHandler handler);
+
+/* OBSOLETE -- OBSOLETE -- OBSOLETE
+   This handler has been superceded by the EntityDeclHandler above.
+   It is provided here for backward compatibility.
+
+   This is called for a declaration of an unparsed (NDATA) entity.
+   The base argument is whatever was set by XML_SetBase. The
+   entityName, systemId and notationName arguments will never be
+   NULL. The other arguments may be.
+*/
+typedef void (*XML_UnparsedEntityDeclHandler)(void *userData,
+                                              const XML_Char *entityName,
+                                              const XML_Char *base,
+                                              const XML_Char *systemId,
+                                              const XML_Char *publicId,
+                                              const XML_Char *notationName);
+
+/* This is called for a declaration of notation.  The base argument is
+   whatever was set by XML_SetBase. The notationName will never be
+   NULL.  The other arguments can be.
+*/
+typedef void (*XML_NotationDeclHandler)(void *userData,
+                                        const XML_Char *notationName,
+                                        const XML_Char *base,
+                                        const XML_Char *systemId,
+                                        const XML_Char *publicId);
+
+/* When namespace processing is enabled, these are called once for
+   each namespace declaration. The call to the start and end element
+   handlers occur between the calls to the start and end namespace
+   declaration handlers. For an xmlns attribute, prefix will be
+   NULL.  For an xmlns="" attribute, uri will be NULL.
+*/
+typedef void (*XML_StartNamespaceDeclHandler)(void *userData,
+                                              const XML_Char *prefix,
+                                              const XML_Char *uri);
+
+typedef void (*XML_EndNamespaceDeclHandler)(void *userData,
+                                            const XML_Char *prefix);
+
+/* This is called if the document is not standalone, that is, it has an
+   external subset or a reference to a parameter entity, but does not
+   have standalone="yes". If this handler returns XML_STATUS_ERROR,
+   then processing will not continue, and the parser will return a
+   XML_ERROR_NOT_STANDALONE error.
+   If parameter entity parsing is enabled, then in addition to the
+   conditions above this handler will only be called if the referenced
+   entity was actually read.
+*/
+typedef int (*XML_NotStandaloneHandler)(void *userData);
+
+/* This is called for a reference to an external parsed general
+   entity.  The referenced entity is not automatically parsed.  The
+   application can parse it immediately or later using
+   XML_ExternalEntityParserCreate.
+
+   The parser argument is the parser parsing the entity containing the
+   reference; it can be passed as the parser argument to
+   XML_ExternalEntityParserCreate.  The systemId argument is the
+   system identifier as specified in the entity declaration; it will
+   not be NULL.
+
+   The base argument is the system identifier that should be used as
+   the base for resolving systemId if systemId was relative; this is
+   set by XML_SetBase; it may be NULL.
+
+   The publicId argument is the public identifier as specified in the
+   entity declaration, or NULL if none was specified; the whitespace
+   in the public identifier will have been normalized as required by
+   the XML spec.
+
+   The context argument specifies the parsing context in the format
+   expected by the context argument to XML_ExternalEntityParserCreate;
+   context is valid only until the handler returns, so if the
+   referenced entity is to be parsed later, it must be copied.
+   context is NULL only when the entity is a parameter entity.
+
+   The handler should return XML_STATUS_ERROR if processing should not
+   continue because of a fatal error in the handling of the external
+   entity.  In this case the calling parser will return an
+   XML_ERROR_EXTERNAL_ENTITY_HANDLING error.
+
+   Note that unlike other handlers the first argument is the parser,
+   not userData.
+*/
+typedef int (*XML_ExternalEntityRefHandler)(XML_Parser parser,
+                                            const XML_Char *context,
+                                            const XML_Char *base,
+                                            const XML_Char *systemId,
+                                            const XML_Char *publicId);
+
+/* This is called in two situations:
+   1) An entity reference is encountered for which no declaration
+      has been read *and* this is not an error.
+   2) An internal entity reference is read, but not expanded, because
+      XML_SetDefaultHandler has been called.
+   Note: skipped parameter entities in declarations and skipped general
+         entities in attribute values cannot be reported, because
+         the event would be out of sync with the reporting of the
+         declarations or attribute values
+*/
+typedef void (*XML_SkippedEntityHandler)(void *userData,
+                                         const XML_Char *entityName,
+                                         int is_parameter_entity);
+
+/* This structure is filled in by the XML_UnknownEncodingHandler to
+   provide information to the parser about encodings that are unknown
+   to the parser.
+
+   The map[b] member gives information about byte sequences whose
+   first byte is b.
+
+   If map[b] is c where c is >= 0, then b by itself encodes the
+   Unicode scalar value c.
+
+   If map[b] is -1, then the byte sequence is malformed.
+
+   If map[b] is -n, where n >= 2, then b is the first byte of an
+   n-byte sequence that encodes a single Unicode scalar value.
+
+   The data member will be passed as the first argument to the convert
+   function.
+
+   The convert function is used to convert multibyte sequences; s will
+   point to a n-byte sequence where map[(unsigned char)*s] == -n.  The
+   convert function must return the Unicode scalar value represented
+   by this byte sequence or -1 if the byte sequence is malformed.
+
+   The convert function may be NULL if the encoding is a single-byte
+   encoding, that is if map[b] >= -1 for all bytes b.
+
+   When the parser is finished with the encoding, then if release is
+   not NULL, it will call release passing it the data member; once
+   release has been called, the convert function will not be called
+   again.
+
+   Expat places certain restrictions on the encodings that are supported
+   using this mechanism.
+
+   1. Every ASCII character that can appear in a well-formed XML document,
+      other than the characters
+
+      $@\^`{}~
+
+      must be represented by a single byte, and that byte must be the
+      same byte that represents that character in ASCII.
+
+   2. No character may require more than 4 bytes to encode.
+
+   3. All characters encoded must have Unicode scalar values <=
+      0xFFFF, (i.e., characters that would be encoded by surrogates in
+      UTF-16 are  not allowed).  Note that this restriction doesn't
+      apply to the built-in support for UTF-8 and UTF-16.
+
+   4. No Unicode character may be encoded by more than one distinct
+      sequence of bytes.
+*/
+typedef struct {
+  int map[256];
+  void *data;
+  int (*convert)(void *data, const char *s);
+  void (*release)(void *data);
+} XML_Encoding;
+
+/* This is called for an encoding that is unknown to the parser.
+
+   The encodingHandlerData argument is that which was passed as the
+   second argument to XML_SetUnknownEncodingHandler.
+
+   The name argument gives the name of the encoding as specified in
+   the encoding declaration.
+
+   If the callback can provide information about the encoding, it must
+   fill in the XML_Encoding structure, and return XML_STATUS_OK.
+   Otherwise it must return XML_STATUS_ERROR.
+
+   If info does not describe a suitable encoding, then the parser will
+   return an XML_UNKNOWN_ENCODING error.
+*/
+typedef int (*XML_UnknownEncodingHandler)(void *encodingHandlerData,
+                                          const XML_Char *name,
+                                          XML_Encoding *info);
+
+XMLPARSEAPI(void)
+XML_SetElementHandler(XML_Parser parser,
+                      XML_StartElementHandler start,
+                      XML_EndElementHandler end);
+
+XMLPARSEAPI(void)
+XML_SetStartElementHandler(XML_Parser, XML_StartElementHandler);
+
+XMLPARSEAPI(void)
+XML_SetEndElementHandler(XML_Parser, XML_EndElementHandler);
+
+XMLPARSEAPI(void)
+XML_SetCharacterDataHandler(XML_Parser parser,
+                            XML_CharacterDataHandler handler);
+
+XMLPARSEAPI(void)
+XML_SetProcessingInstructionHandler(XML_Parser parser,
+                                    XML_ProcessingInstructionHandler handler);
+XMLPARSEAPI(void)
+XML_SetCommentHandler(XML_Parser parser,
+                      XML_CommentHandler handler);
+
+XMLPARSEAPI(void)
+XML_SetCdataSectionHandler(XML_Parser parser,
+                           XML_StartCdataSectionHandler start,
+                           XML_EndCdataSectionHandler end);
+
+XMLPARSEAPI(void)
+XML_SetStartCdataSectionHandler(XML_Parser parser,
+                                XML_StartCdataSectionHandler start);
+
+XMLPARSEAPI(void)
+XML_SetEndCdataSectionHandler(XML_Parser parser,
+                              XML_EndCdataSectionHandler end);
+
+/* This sets the default handler and also inhibits expansion of
+   internal entities. These entity references will be passed to the
+   default handler, or to the skipped entity handler, if one is set.
+*/
+XMLPARSEAPI(void)
+XML_SetDefaultHandler(XML_Parser parser,
+                      XML_DefaultHandler handler);
+
+/* This sets the default handler but does not inhibit expansion of
+   internal entities.  The entity reference will not be passed to the
+   default handler.
+*/
+XMLPARSEAPI(void)
+XML_SetDefaultHandlerExpand(XML_Parser parser,
+                            XML_DefaultHandler handler);
+
+XMLPARSEAPI(void)
+XML_SetDoctypeDeclHandler(XML_Parser parser,
+                          XML_StartDoctypeDeclHandler start,
+                          XML_EndDoctypeDeclHandler end);
+
+XMLPARSEAPI(void)
+XML_SetStartDoctypeDeclHandler(XML_Parser parser,
+                               XML_StartDoctypeDeclHandler start);
+
+XMLPARSEAPI(void)
+XML_SetEndDoctypeDeclHandler(XML_Parser parser,
+                             XML_EndDoctypeDeclHandler end);
+
+XMLPARSEAPI(void)
+XML_SetUnparsedEntityDeclHandler(XML_Parser parser,
+                                 XML_UnparsedEntityDeclHandler handler);
+
+XMLPARSEAPI(void)
+XML_SetNotationDeclHandler(XML_Parser parser,
+                           XML_NotationDeclHandler handler);
+
+XMLPARSEAPI(void)
+XML_SetNamespaceDeclHandler(XML_Parser parser,
+                            XML_StartNamespaceDeclHandler start,
+                            XML_EndNamespaceDeclHandler end);
+
+XMLPARSEAPI(void)
+XML_SetStartNamespaceDeclHandler(XML_Parser parser,
+                                 XML_StartNamespaceDeclHandler start);
+
+XMLPARSEAPI(void)
+XML_SetEndNamespaceDeclHandler(XML_Parser parser,
+                               XML_EndNamespaceDeclHandler end);
+
+XMLPARSEAPI(void)
+XML_SetNotStandaloneHandler(XML_Parser parser,
+                            XML_NotStandaloneHandler handler);
+
+XMLPARSEAPI(void)
+XML_SetExternalEntityRefHandler(XML_Parser parser,
+                                XML_ExternalEntityRefHandler handler);
+
+/* If a non-NULL value for arg is specified here, then it will be
+   passed as the first argument to the external entity ref handler
+   instead of the parser object.
+*/
+XMLPARSEAPI(void)
+XML_SetExternalEntityRefHandlerArg(XML_Parser, void *arg);
+
+XMLPARSEAPI(void)
+XML_SetSkippedEntityHandler(XML_Parser parser,
+                            XML_SkippedEntityHandler handler);
+
+XMLPARSEAPI(void)
+XML_SetUnknownEncodingHandler(XML_Parser parser,
+                              XML_UnknownEncodingHandler handler,
+                              void *encodingHandlerData);
+
+/* This can be called within a handler for a start element, end
+   element, processing instruction or character data.  It causes the
+   corresponding markup to be passed to the default handler.
+*/
+XMLPARSEAPI(void)
+XML_DefaultCurrent(XML_Parser parser);
+
+/* If do_nst is non-zero, and namespace processing is in effect, and
+   a name has a prefix (i.e. an explicit namespace qualifier) then
+   that name is returned as a triplet in a single string separated by
+   the separator character specified when the parser was created: URI
+   + sep + local_name + sep + prefix.
+
+   If do_nst is zero, then namespace information is returned in the
+   default manner (URI + sep + local_name) whether or not the name
+   has a prefix.
+
+   Note: Calling XML_SetReturnNSTriplet after XML_Parse or
+     XML_ParseBuffer has no effect.
+*/
+
+XMLPARSEAPI(void)
+XML_SetReturnNSTriplet(XML_Parser parser, int do_nst);
+
+/* This value is passed as the userData argument to callbacks. */
+XMLPARSEAPI(void)
+XML_SetUserData(XML_Parser parser, void *userData);
+
+/* Returns the last value set by XML_SetUserData or NULL. */
+#define XML_GetUserData(parser) (*(void **)(parser))
+
+/* This is equivalent to supplying an encoding argument to
+   XML_ParserCreate. On success XML_SetEncoding returns non-zero,
+   zero otherwise.
+   Note: Calling XML_SetEncoding after XML_Parse or XML_ParseBuffer
+     has no effect and returns XML_STATUS_ERROR.
+*/
+XMLPARSEAPI(enum XML_Status)
+XML_SetEncoding(XML_Parser parser, const XML_Char *encoding);
+
+/* If this function is called, then the parser will be passed as the
+   first argument to callbacks instead of userData.  The userData will
+   still be accessible using XML_GetUserData.
+*/
+XMLPARSEAPI(void)
+XML_UseParserAsHandlerArg(XML_Parser parser);
+
+/* If useDTD == XML_TRUE is passed to this function, then the parser
+   will assume that there is an external subset, even if none is
+   specified in the document. In such a case the parser will call the
+   externalEntityRefHandler with a value of NULL for the systemId
+   argument (the publicId and context arguments will be NULL as well).
+   Note: If this function is called, then this must be done before
+     the first call to XML_Parse or XML_ParseBuffer, since it will
+     have no effect after that.  Returns
+     XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING.
+   Note: If the document does not have a DOCTYPE declaration at all,
+     then startDoctypeDeclHandler and endDoctypeDeclHandler will not
+     be called, despite an external subset being parsed.
+   Note: If XML_DTD is not defined when Expat is compiled, returns
+     XML_ERROR_FEATURE_REQUIRES_XML_DTD.
+*/
+XMLPARSEAPI(enum XML_Error)
+XML_UseForeignDTD(XML_Parser parser, XML_Bool useDTD);
+
+
+/* Sets the base to be used for resolving relative URIs in system
+   identifiers in declarations.  Resolving relative identifiers is
+   left to the application: this value will be passed through as the
+   base argument to the XML_ExternalEntityRefHandler,
+   XML_NotationDeclHandler and XML_UnparsedEntityDeclHandler. The base
+   argument will be copied.  Returns XML_STATUS_ERROR if out of memory,
+   XML_STATUS_OK otherwise.
+*/
+XMLPARSEAPI(enum XML_Status)
+XML_SetBase(XML_Parser parser, const XML_Char *base);
+
+XMLPARSEAPI(const XML_Char *)
+XML_GetBase(XML_Parser parser);
+
+/* Returns the number of the attribute/value pairs passed in last call
+   to the XML_StartElementHandler that were specified in the start-tag
+   rather than defaulted. Each attribute/value pair counts as 2; thus
+   this correspondds to an index into the atts array passed to the
+   XML_StartElementHandler.
+*/
+XMLPARSEAPI(int)
+XML_GetSpecifiedAttributeCount(XML_Parser parser);
+
+/* Returns the index of the ID attribute passed in the last call to
+   XML_StartElementHandler, or -1 if there is no ID attribute.  Each
+   attribute/value pair counts as 2; thus this correspondds to an
+   index into the atts array passed to the XML_StartElementHandler.
+*/
+XMLPARSEAPI(int)
+XML_GetIdAttributeIndex(XML_Parser parser);
+
+/* Parses some input. Returns XML_STATUS_ERROR if a fatal error is
+   detected.  The last call to XML_Parse must have isFinal true; len
+   may be zero for this call (or any other).
+
+   The XML_Status enum gives the possible return values for the
+   XML_Parse and XML_ParseBuffer functions.  Though the return values
+   for these functions has always been described as a Boolean value,
+   the implementation, at least for the 1.95.x series, has always
+   returned exactly one of these values.  The preprocessor #defines
+   are included so this stanza can be added to code that still needs
+   to support older versions of Expat 1.95.x:
+
+   #ifndef XML_STATUS_OK
+   #define XML_STATUS_OK    1
+   #define XML_STATUS_ERROR 0
+   #endif
+
+   Otherwise, the #define hackery is quite ugly and would have been dropped.
+*/
+enum XML_Status {
+  XML_STATUS_ERROR = 0,
+#define XML_STATUS_ERROR XML_STATUS_ERROR
+  XML_STATUS_OK = 1
+#define XML_STATUS_OK XML_STATUS_OK
+};
+
+XMLPARSEAPI(enum XML_Status)
+XML_Parse(XML_Parser parser, const char *s, int len, int isFinal);
+
+XMLPARSEAPI(void *)
+XML_GetBuffer(XML_Parser parser, int len);
+
+XMLPARSEAPI(enum XML_Status)
+XML_ParseBuffer(XML_Parser parser, int len, int isFinal);
+
+/* Creates an XML_Parser object that can parse an external general
+   entity; context is a '\0'-terminated string specifying the parse
+   context; encoding is a '\0'-terminated string giving the name of
+   the externally specified encoding, or NULL if there is no
+   externally specified encoding.  The context string consists of a
+   sequence of tokens separated by formfeeds (\f); a token consisting
+   of a name specifies that the general entity of the name is open; a
+   token of the form prefix=uri specifies the namespace for a
+   particular prefix; a token of the form =uri specifies the default
+   namespace.  This can be called at any point after the first call to
+   an ExternalEntityRefHandler so longer as the parser has not yet
+   been freed.  The new parser is completely independent and may
+   safely be used in a separate thread.  The handlers and userData are
+   initialized from the parser argument.  Returns NULL if out of memory.
+   Otherwise returns a new XML_Parser object.
+*/
+XMLPARSEAPI(XML_Parser)
+XML_ExternalEntityParserCreate(XML_Parser parser,
+                               const XML_Char *context,
+                               const XML_Char *encoding);
+
+enum XML_ParamEntityParsing {
+  XML_PARAM_ENTITY_PARSING_NEVER,
+  XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE,
+  XML_PARAM_ENTITY_PARSING_ALWAYS
+};
+
+/* Controls parsing of parameter entities (including the external DTD
+   subset). If parsing of parameter entities is enabled, then
+   references to external parameter entities (including the external
+   DTD subset) will be passed to the handler set with
+   XML_SetExternalEntityRefHandler.  The context passed will be 0.
+
+   Unlike external general entities, external parameter entities can
+   only be parsed synchronously.  If the external parameter entity is
+   to be parsed, it must be parsed during the call to the external
+   entity ref handler: the complete sequence of
+   XML_ExternalEntityParserCreate, XML_Parse/XML_ParseBuffer and
+   XML_ParserFree calls must be made during this call.  After
+   XML_ExternalEntityParserCreate has been called to create the parser
+   for the external parameter entity (context must be 0 for this
+   call), it is illegal to make any calls on the old parser until
+   XML_ParserFree has been called on the newly created parser.
+   If the library has been compiled without support for parameter
+   entity parsing (ie without XML_DTD being defined), then
+   XML_SetParamEntityParsing will return 0 if parsing of parameter
+   entities is requested; otherwise it will return non-zero.
+   Note: If XML_SetParamEntityParsing is called after XML_Parse or
+      XML_ParseBuffer, then it has no effect and will always return 0.
+*/
+XMLPARSEAPI(int)
+XML_SetParamEntityParsing(XML_Parser parser,
+                          enum XML_ParamEntityParsing parsing);
+
+/* If XML_Parse or XML_ParseBuffer have returned XML_STATUS_ERROR, then
+   XML_GetErrorCode returns information about the error.
+*/
+XMLPARSEAPI(enum XML_Error)
+XML_GetErrorCode(XML_Parser parser);
+
+/* These functions return information about the current parse
+   location.  They may be called from any callback called to report
+   some parse event; in this case the location is the location of
+   the first of the sequence of characters that generated the event. 
+   
+   They may also be called after returning from a call to XML_Parse
+   or XML_ParseBuffer.  If the return value is XML_STATUS_ERROR then
+   the location is the location of the character at which the error
+   was detected; otherwise the location is the location of the last
+   parse event, as described above.
+*/
+XMLPARSEAPI(int) XML_GetCurrentLineNumber(XML_Parser parser);
+XMLPARSEAPI(int) XML_GetCurrentColumnNumber(XML_Parser parser);
+XMLPARSEAPI(long) XML_GetCurrentByteIndex(XML_Parser parser);
+
+/* Return the number of bytes in the current event.
+   Returns 0 if the event is in an internal entity.
+*/
+XMLPARSEAPI(int)
+XML_GetCurrentByteCount(XML_Parser parser);
+
+/* If XML_CONTEXT_BYTES is defined, returns the input buffer, sets
+   the integer pointed to by offset to the offset within this buffer
+   of the current parse position, and sets the integer pointed to by size
+   to the size of this buffer (the number of input bytes). Otherwise
+   returns a NULL pointer. Also returns a NULL pointer if a parse isn't
+   active.
+
+   NOTE: The character pointer returned should not be used outside
+   the handler that makes the call.
+*/
+XMLPARSEAPI(const char *)
+XML_GetInputContext(XML_Parser parser,
+                    int *offset,
+                    int *size);
+
+/* For backwards compatibility with previous versions. */
+#define XML_GetErrorLineNumber   XML_GetCurrentLineNumber
+#define XML_GetErrorColumnNumber XML_GetCurrentColumnNumber
+#define XML_GetErrorByteIndex    XML_GetCurrentByteIndex
+
+/* Frees the content model passed to the element declaration handler */
+XMLPARSEAPI(void)
+XML_FreeContentModel(XML_Parser parser, XML_Content *model);
+
+/* Exposing the memory handling functions used in Expat */
+XMLPARSEAPI(void *)
+XML_MemMalloc(XML_Parser parser, size_t size);
+
+XMLPARSEAPI(void *)
+XML_MemRealloc(XML_Parser parser, void *ptr, size_t size);
+
+XMLPARSEAPI(void)
+XML_MemFree(XML_Parser parser, void *ptr);
+
+/* Frees memory used by the parser. */
+XMLPARSEAPI(void)
+XML_ParserFree(XML_Parser parser);
+
+/* Returns a string describing the error. */
+XMLPARSEAPI(const XML_LChar *)
+XML_ErrorString(enum XML_Error code);
+
+/* Return a string containing the version number of this expat */
+XMLPARSEAPI(const XML_LChar *)
+XML_ExpatVersion(void);
+
+typedef struct {
+  int major;
+  int minor;
+  int micro;
+} XML_Expat_Version;
+
+/* Return an XML_Expat_Version structure containing numeric version
+   number information for this version of expat.
+*/
+XMLPARSEAPI(XML_Expat_Version)
+XML_ExpatVersionInfo(void);
+
+/* Added in Expat 1.95.5. */
+enum XML_FeatureEnum {
+  XML_FEATURE_END = 0,
+  XML_FEATURE_UNICODE,
+  XML_FEATURE_UNICODE_WCHAR_T,
+  XML_FEATURE_DTD,
+  XML_FEATURE_CONTEXT_BYTES,
+  XML_FEATURE_MIN_SIZE,
+  XML_FEATURE_SIZEOF_XML_CHAR,
+  XML_FEATURE_SIZEOF_XML_LCHAR
+  /* Additional features must be added to the end of this enum. */
+};
+
+typedef struct {
+  enum XML_FeatureEnum  feature;
+  const XML_LChar       *name;
+  long int              value;
+} XML_Feature;
+
+XMLPARSEAPI(const XML_Feature *)
+XML_GetFeatureList(void);
+
+
+/* Expat follows the GNU/Linux convention of odd number minor version for
+   beta/development releases and even number minor version for stable
+   releases. Micro is bumped with each release, and set to 0 with each
+   change to major or minor version.
+*/
+#define XML_MAJOR_VERSION 1
+#define XML_MINOR_VERSION 95
+#define XML_MICRO_VERSION 6
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* not XmlParse_INCLUDED */
diff --git a/lib/libexpat/lib/iasciitab.h b/lib/libexpat/lib/iasciitab.h
new file mode 100644
index 00000000000..24a1d5ccc9a
--- /dev/null
+++ b/lib/libexpat/lib/iasciitab.h
@@ -0,0 +1,37 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+/* Like asciitab.h, except that 0xD has code BT_S rather than BT_CR */
+/* 0x00 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x04 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x08 */ BT_NONXML, BT_S, BT_LF, BT_NONXML,
+/* 0x0C */ BT_NONXML, BT_S, BT_NONXML, BT_NONXML,
+/* 0x10 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x14 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x18 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x1C */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0x20 */ BT_S, BT_EXCL, BT_QUOT, BT_NUM,
+/* 0x24 */ BT_OTHER, BT_PERCNT, BT_AMP, BT_APOS,
+/* 0x28 */ BT_LPAR, BT_RPAR, BT_AST, BT_PLUS,
+/* 0x2C */ BT_COMMA, BT_MINUS, BT_NAME, BT_SOL,
+/* 0x30 */ BT_DIGIT, BT_DIGIT, BT_DIGIT, BT_DIGIT,
+/* 0x34 */ BT_DIGIT, BT_DIGIT, BT_DIGIT, BT_DIGIT,
+/* 0x38 */ BT_DIGIT, BT_DIGIT, BT_COLON, BT_SEMI,
+/* 0x3C */ BT_LT, BT_EQUALS, BT_GT, BT_QUEST,
+/* 0x40 */ BT_OTHER, BT_HEX, BT_HEX, BT_HEX,
+/* 0x44 */ BT_HEX, BT_HEX, BT_HEX, BT_NMSTRT,
+/* 0x48 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x4C */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x50 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x54 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x58 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_LSQB,
+/* 0x5C */ BT_OTHER, BT_RSQB, BT_OTHER, BT_NMSTRT,
+/* 0x60 */ BT_OTHER, BT_HEX, BT_HEX, BT_HEX,
+/* 0x64 */ BT_HEX, BT_HEX, BT_HEX, BT_NMSTRT,
+/* 0x68 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x6C */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x70 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x74 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0x78 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_OTHER,
+/* 0x7C */ BT_VERBAR, BT_OTHER, BT_OTHER, BT_OTHER,
diff --git a/lib/libexpat/lib/internal.h b/lib/libexpat/lib/internal.h
new file mode 100644
index 00000000000..1bf6baa5432
--- /dev/null
+++ b/lib/libexpat/lib/internal.h
@@ -0,0 +1,73 @@
+/* internal.h
+
+   Internal definitions used by Expat.  This is not needed to compile
+   client code.
+
+   The following calling convention macros are defined for frequently
+   called functions:
+
+   FASTCALL    - Used for those internal functions that have a simple
+                 body and a low number of arguments and local variables.
+
+   PTRCALL     - Used for functions called though function pointers.
+
+   PTRFASTCALL - Like PTRCALL, but for low number of arguments.
+
+   inline      - Used for selected internal functions for which inlining
+                 may improve performance on some platforms.
+
+   Note: Use of these macros is based on judgement, not hard rules,
+         and therefore subject to change.
+*/
+
+#if defined(__GNUC__)
+/* Instability reported with egcs on a RedHat Linux 7.3.
+   Let's comment it out:
+   #define FASTCALL __attribute__((stdcall, regparm(3)))
+   and let's try this:
+*/
+#define FASTCALL __attribute__((regparm(3)))
+#define PTRCALL
+#define PTRFASTCALL __attribute__((regparm(3)))
+
+#elif defined(WIN32)
+/* Using __fastcall seems to have an unexpected negative effect under
+   MS VC++, especially for function pointers, so we won't use it for
+   now on that platform. It may be reconsidered for a future release
+   if it can be made more effective.
+   Likely reason: __fastcall on Windows is like stdcall, therefore
+   the compiler cannot perform stack optimizations for call clusters.
+*/
+#define FASTCALL
+#define PTRCALL
+#define PTRFASTCALL
+
+#endif
+
+#ifndef FASTCALL
+#define FASTCALL
+#endif
+
+#ifndef PTRCALL
+#define PTRCALL
+#endif
+
+#ifndef PTRFASTCALL
+#define PTRFASTCALL
+#endif
+
+#ifndef XML_MIN_SIZE
+#if !defined(__cplusplus) && !defined(inline)
+#ifdef __GNUC__
+#define inline __inline
+#endif /* __GNUC__ */
+#endif
+#endif /* XML_MIN_SIZE */
+
+#ifdef __cplusplus
+#define inline inline
+#else
+#ifndef inline
+#define inline
+#endif
+#endif
diff --git a/lib/libexpat/lib/latin1tab.h b/lib/libexpat/lib/latin1tab.h
new file mode 100644
index 00000000000..53c25d76b26
--- /dev/null
+++ b/lib/libexpat/lib/latin1tab.h
@@ -0,0 +1,36 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+/* 0x80 */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0x84 */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0x88 */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0x8C */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0x90 */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0x94 */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0x98 */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0x9C */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0xA0 */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0xA4 */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0xA8 */ BT_OTHER, BT_OTHER, BT_NMSTRT, BT_OTHER,
+/* 0xAC */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0xB0 */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0xB4 */ BT_OTHER, BT_NMSTRT, BT_OTHER, BT_NAME,
+/* 0xB8 */ BT_OTHER, BT_OTHER, BT_NMSTRT, BT_OTHER,
+/* 0xBC */ BT_OTHER, BT_OTHER, BT_OTHER, BT_OTHER,
+/* 0xC0 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xC4 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xC8 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xCC */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xD0 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xD4 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_OTHER,
+/* 0xD8 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xDC */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xE0 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xE4 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xE8 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xEC */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xF0 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xF4 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_OTHER,
+/* 0xF8 */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
+/* 0xFC */ BT_NMSTRT, BT_NMSTRT, BT_NMSTRT, BT_NMSTRT,
diff --git a/lib/libexpat/lib/nametab.h b/lib/libexpat/lib/nametab.h
new file mode 100644
index 00000000000..b05e62c77a6
--- /dev/null
+++ b/lib/libexpat/lib/nametab.h
@@ -0,0 +1,150 @@
+static const unsigned namingBitmap[] = {
+0x00000000, 0x00000000, 0x00000000, 0x00000000,
+0x00000000, 0x00000000, 0x00000000, 0x00000000,
+0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+0x00000000, 0x04000000, 0x87FFFFFE, 0x07FFFFFE,
+0x00000000, 0x00000000, 0xFF7FFFFF, 0xFF7FFFFF,
+0xFFFFFFFF, 0x7FF3FFFF, 0xFFFFFDFE, 0x7FFFFFFF,
+0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFE00F, 0xFC31FFFF,
+0x00FFFFFF, 0x00000000, 0xFFFF0000, 0xFFFFFFFF,
+0xFFFFFFFF, 0xF80001FF, 0x00000003, 0x00000000,
+0x00000000, 0x00000000, 0x00000000, 0x00000000,
+0xFFFFD740, 0xFFFFFFFB, 0x547F7FFF, 0x000FFFFD,
+0xFFFFDFFE, 0xFFFFFFFF, 0xDFFEFFFF, 0xFFFFFFFF,
+0xFFFF0003, 0xFFFFFFFF, 0xFFFF199F, 0x033FCFFF,
+0x00000000, 0xFFFE0000, 0x027FFFFF, 0xFFFFFFFE,
+0x0000007F, 0x00000000, 0xFFFF0000, 0x000707FF,
+0x00000000, 0x07FFFFFE, 0x000007FE, 0xFFFE0000,
+0xFFFFFFFF, 0x7CFFFFFF, 0x002F7FFF, 0x00000060,
+0xFFFFFFE0, 0x23FFFFFF, 0xFF000000, 0x00000003,
+0xFFF99FE0, 0x03C5FDFF, 0xB0000000, 0x00030003,
+0xFFF987E0, 0x036DFDFF, 0x5E000000, 0x001C0000,
+0xFFFBAFE0, 0x23EDFDFF, 0x00000000, 0x00000001,
+0xFFF99FE0, 0x23CDFDFF, 0xB0000000, 0x00000003,
+0xD63DC7E0, 0x03BFC718, 0x00000000, 0x00000000,
+0xFFFDDFE0, 0x03EFFDFF, 0x00000000, 0x00000003,
+0xFFFDDFE0, 0x03EFFDFF, 0x40000000, 0x00000003,
+0xFFFDDFE0, 0x03FFFDFF, 0x00000000, 0x00000003,
+0x00000000, 0x00000000, 0x00000000, 0x00000000,
+0xFFFFFFFE, 0x000D7FFF, 0x0000003F, 0x00000000,
+0xFEF02596, 0x200D6CAE, 0x0000001F, 0x00000000,
+0x00000000, 0x00000000, 0xFFFFFEFF, 0x000003FF,
+0x00000000, 0x00000000, 0x00000000, 0x00000000,
+0x00000000, 0x00000000, 0x00000000, 0x00000000,
+0x00000000, 0xFFFFFFFF, 0xFFFF003F, 0x007FFFFF,
+0x0007DAED, 0x50000000, 0x82315001, 0x002C62AB,
+0x40000000, 0xF580C900, 0x00000007, 0x02010800,
+0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+0x0FFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x03FFFFFF,
+0x3F3FFFFF, 0xFFFFFFFF, 0xAAFF3F3F, 0x3FFFFFFF,
+0xFFFFFFFF, 0x5FDFFFFF, 0x0FCF1FDC, 0x1FDC1FFF,
+0x00000000, 0x00004C40, 0x00000000, 0x00000000,
+0x00000007, 0x00000000, 0x00000000, 0x00000000,
+0x00000080, 0x000003FE, 0xFFFFFFFE, 0xFFFFFFFF,
+0x001FFFFF, 0xFFFFFFFE, 0xFFFFFFFF, 0x07FFFFFF,
+0xFFFFFFE0, 0x00001FFF, 0x00000000, 0x00000000,
+0x00000000, 0x00000000, 0x00000000, 0x00000000,
+0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+0xFFFFFFFF, 0x0000003F, 0x00000000, 0x00000000,
+0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+0xFFFFFFFF, 0x0000000F, 0x00000000, 0x00000000,
+0x00000000, 0x07FF6000, 0x87FFFFFE, 0x07FFFFFE,
+0x00000000, 0x00800000, 0xFF7FFFFF, 0xFF7FFFFF,
+0x00FFFFFF, 0x00000000, 0xFFFF0000, 0xFFFFFFFF,
+0xFFFFFFFF, 0xF80001FF, 0x00030003, 0x00000000,
+0xFFFFFFFF, 0xFFFFFFFF, 0x0000003F, 0x00000003,
+0xFFFFD7C0, 0xFFFFFFFB, 0x547F7FFF, 0x000FFFFD,
+0xFFFFDFFE, 0xFFFFFFFF, 0xDFFEFFFF, 0xFFFFFFFF,
+0xFFFF007B, 0xFFFFFFFF, 0xFFFF199F, 0x033FCFFF,
+0x00000000, 0xFFFE0000, 0x027FFFFF, 0xFFFFFFFE,
+0xFFFE007F, 0xBBFFFFFB, 0xFFFF0016, 0x000707FF,
+0x00000000, 0x07FFFFFE, 0x0007FFFF, 0xFFFF03FF,
+0xFFFFFFFF, 0x7CFFFFFF, 0xFFEF7FFF, 0x03FF3DFF,
+0xFFFFFFEE, 0xF3FFFFFF, 0xFF1E3FFF, 0x0000FFCF,
+0xFFF99FEE, 0xD3C5FDFF, 0xB080399F, 0x0003FFCF,
+0xFFF987E4, 0xD36DFDFF, 0x5E003987, 0x001FFFC0,
+0xFFFBAFEE, 0xF3EDFDFF, 0x00003BBF, 0x0000FFC1,
+0xFFF99FEE, 0xF3CDFDFF, 0xB0C0398F, 0x0000FFC3,
+0xD63DC7EC, 0xC3BFC718, 0x00803DC7, 0x0000FF80,
+0xFFFDDFEE, 0xC3EFFDFF, 0x00603DDF, 0x0000FFC3,
+0xFFFDDFEC, 0xC3EFFDFF, 0x40603DDF, 0x0000FFC3,
+0xFFFDDFEC, 0xC3FFFDFF, 0x00803DCF, 0x0000FFC3,
+0x00000000, 0x00000000, 0x00000000, 0x00000000,
+0xFFFFFFFE, 0x07FF7FFF, 0x03FF7FFF, 0x00000000,
+0xFEF02596, 0x3BFF6CAE, 0x03FF3F5F, 0x00000000,
+0x03000000, 0xC2A003FF, 0xFFFFFEFF, 0xFFFE03FF,
+0xFEBF0FDF, 0x02FE3FFF, 0x00000000, 0x00000000,
+0x00000000, 0x00000000, 0x00000000, 0x00000000,
+0x00000000, 0x00000000, 0x1FFF0000, 0x00000002,
+0x000000A0, 0x003EFFFE, 0xFFFFFFFE, 0xFFFFFFFF,
+0x661FFFFF, 0xFFFFFFFE, 0xFFFFFFFF, 0x77FFFFFF,
+};
+static const unsigned char nmstrtPages[] = {
+0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x00,
+0x00, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+0x10, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x13,
+0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x15, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x17,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+static const unsigned char namePages[] = {
+0x19, 0x03, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x00,
+0x00, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25,
+0x10, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x13,
+0x26, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x27, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x17,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
diff --git a/lib/libexpat/lib/utf8tab.h b/lib/libexpat/lib/utf8tab.h
new file mode 100644
index 00000000000..7bb3e77603f
--- /dev/null
+++ b/lib/libexpat/lib/utf8tab.h
@@ -0,0 +1,37 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+
+/* 0x80 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0x84 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0x88 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0x8C */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0x90 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0x94 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0x98 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0x9C */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0xA0 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0xA4 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0xA8 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0xAC */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0xB0 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0xB4 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0xB8 */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0xBC */ BT_TRAIL, BT_TRAIL, BT_TRAIL, BT_TRAIL,
+/* 0xC0 */ BT_LEAD2, BT_LEAD2, BT_LEAD2, BT_LEAD2,
+/* 0xC4 */ BT_LEAD2, BT_LEAD2, BT_LEAD2, BT_LEAD2,
+/* 0xC8 */ BT_LEAD2, BT_LEAD2, BT_LEAD2, BT_LEAD2,
+/* 0xCC */ BT_LEAD2, BT_LEAD2, BT_LEAD2, BT_LEAD2,
+/* 0xD0 */ BT_LEAD2, BT_LEAD2, BT_LEAD2, BT_LEAD2,
+/* 0xD4 */ BT_LEAD2, BT_LEAD2, BT_LEAD2, BT_LEAD2,
+/* 0xD8 */ BT_LEAD2, BT_LEAD2, BT_LEAD2, BT_LEAD2,
+/* 0xDC */ BT_LEAD2, BT_LEAD2, BT_LEAD2, BT_LEAD2,
+/* 0xE0 */ BT_LEAD3, BT_LEAD3, BT_LEAD3, BT_LEAD3,
+/* 0xE4 */ BT_LEAD3, BT_LEAD3, BT_LEAD3, BT_LEAD3,
+/* 0xE8 */ BT_LEAD3, BT_LEAD3, BT_LEAD3, BT_LEAD3,
+/* 0xEC */ BT_LEAD3, BT_LEAD3, BT_LEAD3, BT_LEAD3,
+/* 0xF0 */ BT_LEAD4, BT_LEAD4, BT_LEAD4, BT_LEAD4,
+/* 0xF4 */ BT_LEAD4, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0xF8 */ BT_NONXML, BT_NONXML, BT_NONXML, BT_NONXML,
+/* 0xFC */ BT_NONXML, BT_NONXML, BT_MALFORM, BT_MALFORM,
diff --git a/lib/libexpat/lib/winconfig.h b/lib/libexpat/lib/winconfig.h
new file mode 100644
index 00000000000..922ba1061ec
--- /dev/null
+++ b/lib/libexpat/lib/winconfig.h
@@ -0,0 +1,30 @@
+/*================================================================

+** Copyright 2000, Clark Cooper

+** All rights reserved.

+**

+** This is free software. You are permitted to copy, distribute, or modify

+** it under the terms of the MIT/X license (contained in the COPYING file

+** with this distribution.)

+*/

+

+#ifndef WINCONFIG_H

+#define WINCONFIG_H

+

+#define WIN32_LEAN_AND_MEAN

+#include <windows.h>

+#undef WIN32_LEAN_AND_MEAN

+

+#include <memory.h>

+#include <string.h>

+

+#define XML_NS 1

+#define XML_DTD 1

+#define XML_CONTEXT_BYTES 1024

+

+/* we will assume all Windows platforms are little endian */

+#define BYTEORDER 1234

+

+/* Windows has memmove() available. */

+#define HAVE_MEMMOVE

+

+#endif /* ndef WINCONFIG_H */

diff --git a/lib/libexpat/lib/xmlparse.c b/lib/libexpat/lib/xmlparse.c
new file mode 100644
index 00000000000..6e0fa1fc516
--- /dev/null
+++ b/lib/libexpat/lib/xmlparse.c
@@ -0,0 +1,5702 @@
+/* Copyright (c) 1998, 1999, 2000 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+#include <stddef.h>
+#include <string.h>                     /* memset(), memcpy() */
+
+#ifdef COMPILED_FROM_DSP
+
+#include "winconfig.h"
+#define XMLPARSEAPI(type) type __cdecl
+#include "expat.h"
+#undef XMLPARSEAPI
+
+#elif defined(MACOS_CLASSIC)
+
+#include "macconfig.h"
+#include "expat.h"
+
+#else
+
+#include <expat_config.h>
+
+#ifdef __declspec
+#define XMLPARSEAPI(type) type __cdecl
+#endif
+
+#include "expat.h"
+
+#ifdef __declspec
+#undef XMLPARSEAPI
+#endif
+#endif /* ndef COMPILED_FROM_DSP */
+
+#ifdef XML_UNICODE
+#define XML_ENCODE_MAX XML_UTF16_ENCODE_MAX
+#define XmlConvert XmlUtf16Convert
+#define XmlGetInternalEncoding XmlGetUtf16InternalEncoding
+#define XmlGetInternalEncodingNS XmlGetUtf16InternalEncodingNS
+#define XmlEncode XmlUtf16Encode
+#define MUST_CONVERT(enc, s) (!(enc)->isUtf16 || (((unsigned long)s) & 1))
+typedef unsigned short ICHAR;
+#else
+#define XML_ENCODE_MAX XML_UTF8_ENCODE_MAX
+#define XmlConvert XmlUtf8Convert
+#define XmlGetInternalEncoding XmlGetUtf8InternalEncoding
+#define XmlGetInternalEncodingNS XmlGetUtf8InternalEncodingNS
+#define XmlEncode XmlUtf8Encode
+#define MUST_CONVERT(enc, s) (!(enc)->isUtf8)
+typedef char ICHAR;
+#endif
+
+
+#ifndef XML_NS
+
+#define XmlInitEncodingNS XmlInitEncoding
+#define XmlInitUnknownEncodingNS XmlInitUnknownEncoding
+#undef XmlGetInternalEncodingNS
+#define XmlGetInternalEncodingNS XmlGetInternalEncoding
+#define XmlParseXmlDeclNS XmlParseXmlDecl
+
+#endif
+
+#ifdef XML_UNICODE
+
+#ifdef XML_UNICODE_WCHAR_T
+#define XML_T(x) (const wchar_t)x
+#define XML_L(x) L ## x
+#else
+#define XML_T(x) (const unsigned short)x
+#define XML_L(x) x
+#endif
+
+#else
+
+#define XML_T(x) x
+#define XML_L(x) x
+
+#endif
+
+/* Round up n to be a multiple of sz, where sz is a power of 2. */
+#define ROUND_UP(n, sz) (((n) + ((sz) - 1)) & ~((sz) - 1))
+
+/* Handle the case where memmove() doesn't exist. */
+#ifndef HAVE_MEMMOVE
+#ifdef HAVE_BCOPY
+#define memmove(d,s,l) bcopy((s),(d),(l))
+#else
+#error memmove does not exist on this platform, nor is a substitute available
+#endif /* HAVE_BCOPY */
+#endif /* HAVE_MEMMOVE */
+
+#include "internal.h"
+#include "xmltok.h"
+#include "xmlrole.h"
+
+typedef const XML_Char *KEY;
+
+typedef struct {
+  KEY name;
+} NAMED;
+
+typedef struct {
+  NAMED **v;
+  size_t size;
+  size_t used;
+  size_t usedLim;
+  const XML_Memory_Handling_Suite *mem;
+} HASH_TABLE;
+
+typedef struct {
+  NAMED **p;
+  NAMED **end;
+} HASH_TABLE_ITER;
+
+#define INIT_TAG_BUF_SIZE 32  /* must be a multiple of sizeof(XML_Char) */
+#define INIT_DATA_BUF_SIZE 1024
+#define INIT_ATTS_SIZE 16
+#define INIT_BLOCK_SIZE 1024
+#define INIT_BUFFER_SIZE 1024
+
+#define EXPAND_SPARE 24
+
+typedef struct binding {
+  struct prefix *prefix;
+  struct binding *nextTagBinding;
+  struct binding *prevPrefixBinding;
+  const struct attribute_id *attId;
+  XML_Char *uri;
+  int uriLen;
+  int uriAlloc;
+} BINDING;
+
+typedef struct prefix {
+  const XML_Char *name;
+  BINDING *binding;
+} PREFIX;
+
+typedef struct {
+  const XML_Char *str;
+  const XML_Char *localPart;
+  const XML_Char *prefix;
+  int strLen;
+  int uriLen;
+  int prefixLen;
+} TAG_NAME;
+
+/* TAG represents an open element.
+   The name of the element is stored in both the document and API
+   encodings.  The memory buffer 'buf' is a separately-allocated
+   memory area which stores the name.  During the XML_Parse()/
+   XMLParseBuffer() when the element is open, the memory for the 'raw'
+   version of the name (in the document encoding) is shared with the
+   document buffer.  If the element is open across calls to
+   XML_Parse()/XML_ParseBuffer(), the buffer is re-allocated to
+   contain the 'raw' name as well.
+
+   A parser re-uses these structures, maintaining a list of allocated
+   TAG objects in a free list.
+*/
+typedef struct tag {
+  struct tag *parent;           /* parent of this element */
+  const char *rawName;          /* tagName in the original encoding */
+  int rawNameLength;
+  TAG_NAME name;                /* tagName in the API encoding */
+  char *buf;                    /* buffer for name components */
+  char *bufEnd;                 /* end of the buffer */
+  BINDING *bindings;
+} TAG;
+
+typedef struct {
+  const XML_Char *name;
+  const XML_Char *textPtr;
+  int textLen;
+  const XML_Char *systemId;
+  const XML_Char *base;
+  const XML_Char *publicId;
+  const XML_Char *notation;
+  XML_Bool open;
+  XML_Bool is_param;
+  XML_Bool is_internal; /* true if declared in internal subset outside PE */
+} ENTITY;
+
+typedef struct {
+  enum XML_Content_Type         type;
+  enum XML_Content_Quant        quant;
+  const XML_Char *              name;
+  int                           firstchild;
+  int                           lastchild;
+  int                           childcnt;
+  int                           nextsib;
+} CONTENT_SCAFFOLD;
+
+#define INIT_SCAFFOLD_ELEMENTS 32
+
+typedef struct block {
+  struct block *next;
+  int size;
+  XML_Char s[1];
+} BLOCK;
+
+typedef struct {
+  BLOCK *blocks;
+  BLOCK *freeBlocks;
+  const XML_Char *end;
+  XML_Char *ptr;
+  XML_Char *start;
+  const XML_Memory_Handling_Suite *mem;
+} STRING_POOL;
+
+/* The XML_Char before the name is used to determine whether
+   an attribute has been specified. */
+typedef struct attribute_id {
+  XML_Char *name;
+  PREFIX *prefix;
+  XML_Bool maybeTokenized;
+  XML_Bool xmlns;
+} ATTRIBUTE_ID;
+
+typedef struct {
+  const ATTRIBUTE_ID *id;
+  XML_Bool isCdata;
+  const XML_Char *value;
+} DEFAULT_ATTRIBUTE;
+
+typedef struct {
+  const XML_Char *name;
+  PREFIX *prefix;
+  const ATTRIBUTE_ID *idAtt;
+  int nDefaultAtts;
+  int allocDefaultAtts;
+  DEFAULT_ATTRIBUTE *defaultAtts;
+} ELEMENT_TYPE;
+
+typedef struct {
+  HASH_TABLE generalEntities;
+  HASH_TABLE elementTypes;
+  HASH_TABLE attributeIds;
+  HASH_TABLE prefixes;
+  STRING_POOL pool;
+  STRING_POOL entityValuePool;
+  /* false once a parameter entity reference has been skipped */
+  XML_Bool keepProcessing;
+  /* true once an internal or external PE reference has been encountered;
+     this includes the reference to an external subset */
+  XML_Bool hasParamEntityRefs;
+  XML_Bool standalone;
+#ifdef XML_DTD
+  /* indicates if external PE has been read */
+  XML_Bool paramEntityRead;
+  HASH_TABLE paramEntities;
+#endif /* XML_DTD */
+  PREFIX defaultPrefix;
+  /* === scaffolding for building content model === */
+  XML_Bool in_eldecl;
+  CONTENT_SCAFFOLD *scaffold;
+  unsigned contentStringLen;
+  unsigned scaffSize;
+  unsigned scaffCount;
+  int scaffLevel;
+  int *scaffIndex;
+} DTD;
+
+typedef struct open_internal_entity {
+  const char *internalEventPtr;
+  const char *internalEventEndPtr;
+  struct open_internal_entity *next;
+  ENTITY *entity;
+} OPEN_INTERNAL_ENTITY;
+
+typedef enum XML_Error PTRCALL Processor(XML_Parser parser,
+                                         const char *start,
+                                         const char *end,
+                                         const char **endPtr);
+
+static Processor prologProcessor;
+static Processor prologInitProcessor;
+static Processor contentProcessor;
+static Processor cdataSectionProcessor;
+#ifdef XML_DTD
+static Processor ignoreSectionProcessor;
+static Processor externalParEntProcessor;
+static Processor externalParEntInitProcessor;
+static Processor entityValueProcessor;
+static Processor entityValueInitProcessor;
+#endif /* XML_DTD */
+static Processor epilogProcessor;
+static Processor errorProcessor;
+static Processor externalEntityInitProcessor;
+static Processor externalEntityInitProcessor2;
+static Processor externalEntityInitProcessor3;
+static Processor externalEntityContentProcessor;
+
+static enum XML_Error
+handleUnknownEncoding(XML_Parser parser, const XML_Char *encodingName);
+static enum XML_Error
+processXmlDecl(XML_Parser parser, int isGeneralTextEntity,
+               const char *, const char *);
+static enum XML_Error
+initializeEncoding(XML_Parser parser);
+static enum XML_Error
+doProlog(XML_Parser parser, const ENCODING *enc, const char *s,
+         const char *end, int tok, const char *next, const char **nextPtr);
+static enum XML_Error
+processInternalParamEntity(XML_Parser parser, ENTITY *entity);
+static enum XML_Error
+doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
+          const char *start, const char *end, const char **endPtr);
+static enum XML_Error
+doCdataSection(XML_Parser parser, const ENCODING *, const char **startPtr,
+               const char *end, const char **nextPtr);
+#ifdef XML_DTD
+static enum XML_Error
+doIgnoreSection(XML_Parser parser, const ENCODING *, const char **startPtr,
+                const char *end, const char **nextPtr);
+#endif /* XML_DTD */
+
+static enum XML_Error
+storeAtts(XML_Parser parser, const ENCODING *, const char *s,
+          TAG_NAME *tagNamePtr, BINDING **bindingsPtr);
+static enum XML_Error
+addBinding(XML_Parser parser, PREFIX *prefix, const ATTRIBUTE_ID *attId,
+           const XML_Char *uri, BINDING **bindingsPtr);
+static int
+defineAttribute(ELEMENT_TYPE *type, ATTRIBUTE_ID *,
+                XML_Bool isCdata, XML_Bool isId, const XML_Char *dfltValue,
+                XML_Parser parser);
+static enum XML_Error
+storeAttributeValue(XML_Parser parser, const ENCODING *, XML_Bool isCdata,
+                    const char *, const char *, STRING_POOL *);
+static enum XML_Error
+appendAttributeValue(XML_Parser parser, const ENCODING *, XML_Bool isCdata,
+                     const char *, const char *, STRING_POOL *);
+static ATTRIBUTE_ID *
+getAttributeId(XML_Parser parser, const ENCODING *enc, const char *start,
+               const char *end);
+static int
+setElementTypePrefix(XML_Parser parser, ELEMENT_TYPE *);
+static enum XML_Error
+storeEntityValue(XML_Parser parser, const ENCODING *enc, const char *start,
+                 const char *end);
+static int
+reportProcessingInstruction(XML_Parser parser, const ENCODING *enc,
+                            const char *start, const char *end);
+static int
+reportComment(XML_Parser parser, const ENCODING *enc, const char *start,
+              const char *end);
+static void
+reportDefault(XML_Parser parser, const ENCODING *enc, const char *start,
+              const char *end);
+
+static const XML_Char * getContext(XML_Parser parser);
+static XML_Bool
+setContext(XML_Parser parser, const XML_Char *context);
+
+static void FASTCALL normalizePublicId(XML_Char *s);
+
+static DTD * dtdCreate(const XML_Memory_Handling_Suite *ms);
+/* do not call if parentParser != NULL */
+static void dtdReset(DTD *p, const XML_Memory_Handling_Suite *ms);
+static void
+dtdDestroy(DTD *p, XML_Bool isDocEntity, const XML_Memory_Handling_Suite *ms);
+static int
+dtdCopy(DTD *newDtd, const DTD *oldDtd, const XML_Memory_Handling_Suite *ms);
+static int
+copyEntityTable(HASH_TABLE *, STRING_POOL *, const HASH_TABLE *);
+
+static NAMED *
+lookup(HASH_TABLE *table, KEY name, size_t createSize);
+static void FASTCALL
+hashTableInit(HASH_TABLE *, const XML_Memory_Handling_Suite *ms);
+static void FASTCALL hashTableClear(HASH_TABLE *);
+static void FASTCALL hashTableDestroy(HASH_TABLE *);
+static void FASTCALL
+hashTableIterInit(HASH_TABLE_ITER *, const HASH_TABLE *);
+static NAMED * FASTCALL hashTableIterNext(HASH_TABLE_ITER *);
+
+static void FASTCALL
+poolInit(STRING_POOL *, const XML_Memory_Handling_Suite *ms);
+static void FASTCALL poolClear(STRING_POOL *);
+static void FASTCALL poolDestroy(STRING_POOL *);
+static XML_Char *
+poolAppend(STRING_POOL *pool, const ENCODING *enc,
+           const char *ptr, const char *end);
+static XML_Char *
+poolStoreString(STRING_POOL *pool, const ENCODING *enc,
+                const char *ptr, const char *end);
+static XML_Bool FASTCALL poolGrow(STRING_POOL *pool);
+static const XML_Char * FASTCALL
+poolCopyString(STRING_POOL *pool, const XML_Char *s);
+static const XML_Char *
+poolCopyStringN(STRING_POOL *pool, const XML_Char *s, int n);
+static const XML_Char * FASTCALL
+poolAppendString(STRING_POOL *pool, const XML_Char *s);
+
+static int FASTCALL nextScaffoldPart(XML_Parser parser);
+static XML_Content * build_model(XML_Parser parser);
+static ELEMENT_TYPE *
+getElementType(XML_Parser parser, const ENCODING *enc,
+               const char *ptr, const char *end);
+
+static XML_Parser
+parserCreate(const XML_Char *encodingName,
+             const XML_Memory_Handling_Suite *memsuite,
+             const XML_Char *nameSep,
+             DTD *dtd);
+static void
+parserInit(XML_Parser parser, const XML_Char *encodingName);
+
+#define poolStart(pool) ((pool)->start)
+#define poolEnd(pool) ((pool)->ptr)
+#define poolLength(pool) ((pool)->ptr - (pool)->start)
+#define poolChop(pool) ((void)--(pool->ptr))
+#define poolLastChar(pool) (((pool)->ptr)[-1])
+#define poolDiscard(pool) ((pool)->ptr = (pool)->start)
+#define poolFinish(pool) ((pool)->start = (pool)->ptr)
+#define poolAppendChar(pool, c) \
+  (((pool)->ptr == (pool)->end && !poolGrow(pool)) \
+   ? 0 \
+   : ((*((pool)->ptr)++ = c), 1))
+
+struct XML_ParserStruct {
+  /* The first member must be userData so that the XML_GetUserData
+     macro works. */
+  void *m_userData;
+  void *m_handlerArg;
+  char *m_buffer;
+  const XML_Memory_Handling_Suite m_mem;
+  /* first character to be parsed */
+  const char *m_bufferPtr;
+  /* past last character to be parsed */
+  char *m_bufferEnd;
+  /* allocated end of buffer */
+  const char *m_bufferLim;
+  long m_parseEndByteIndex;
+  const char *m_parseEndPtr;
+  XML_Char *m_dataBuf;
+  XML_Char *m_dataBufEnd;
+  XML_StartElementHandler m_startElementHandler;
+  XML_EndElementHandler m_endElementHandler;
+  XML_CharacterDataHandler m_characterDataHandler;
+  XML_ProcessingInstructionHandler m_processingInstructionHandler;
+  XML_CommentHandler m_commentHandler;
+  XML_StartCdataSectionHandler m_startCdataSectionHandler;
+  XML_EndCdataSectionHandler m_endCdataSectionHandler;
+  XML_DefaultHandler m_defaultHandler;
+  XML_StartDoctypeDeclHandler m_startDoctypeDeclHandler;
+  XML_EndDoctypeDeclHandler m_endDoctypeDeclHandler;
+  XML_UnparsedEntityDeclHandler m_unparsedEntityDeclHandler;
+  XML_NotationDeclHandler m_notationDeclHandler;
+  XML_StartNamespaceDeclHandler m_startNamespaceDeclHandler;
+  XML_EndNamespaceDeclHandler m_endNamespaceDeclHandler;
+  XML_NotStandaloneHandler m_notStandaloneHandler;
+  XML_ExternalEntityRefHandler m_externalEntityRefHandler;
+  XML_Parser m_externalEntityRefHandlerArg;
+  XML_SkippedEntityHandler m_skippedEntityHandler;
+  XML_UnknownEncodingHandler m_unknownEncodingHandler;
+  XML_ElementDeclHandler m_elementDeclHandler;
+  XML_AttlistDeclHandler m_attlistDeclHandler;
+  XML_EntityDeclHandler m_entityDeclHandler;
+  XML_XmlDeclHandler m_xmlDeclHandler;
+  const ENCODING *m_encoding;
+  INIT_ENCODING m_initEncoding;
+  const ENCODING *m_internalEncoding;
+  const XML_Char *m_protocolEncodingName;
+  XML_Bool m_ns;
+  XML_Bool m_ns_triplets;
+  void *m_unknownEncodingMem;
+  void *m_unknownEncodingData;
+  void *m_unknownEncodingHandlerData;
+  void (*m_unknownEncodingRelease)(void *);
+  PROLOG_STATE m_prologState;
+  Processor *m_processor;
+  enum XML_Error m_errorCode;
+  const char *m_eventPtr;
+  const char *m_eventEndPtr;
+  const char *m_positionPtr;
+  OPEN_INTERNAL_ENTITY *m_openInternalEntities;
+  XML_Bool m_defaultExpandInternalEntities;
+  int m_tagLevel;
+  ENTITY *m_declEntity;
+  const XML_Char *m_doctypeName;
+  const XML_Char *m_doctypeSysid;
+  const XML_Char *m_doctypePubid;
+  const XML_Char *m_declAttributeType;
+  const XML_Char *m_declNotationName;
+  const XML_Char *m_declNotationPublicId;
+  ELEMENT_TYPE *m_declElementType;
+  ATTRIBUTE_ID *m_declAttributeId;
+  XML_Bool m_declAttributeIsCdata;
+  XML_Bool m_declAttributeIsId;
+  DTD *m_dtd;
+  const XML_Char *m_curBase;
+  TAG *m_tagStack;
+  TAG *m_freeTagList;
+  BINDING *m_inheritedBindings;
+  BINDING *m_freeBindingList;
+  int m_attsSize;
+  int m_nSpecifiedAtts;
+  int m_idAttIndex;
+  ATTRIBUTE *m_atts;
+  POSITION m_position;
+  STRING_POOL m_tempPool;
+  STRING_POOL m_temp2Pool;
+  char *m_groupConnector;
+  unsigned m_groupSize;
+  XML_Char m_namespaceSeparator;
+  XML_Parser m_parentParser;
+#ifdef XML_DTD
+  XML_Bool m_isParamEntity;
+  XML_Bool m_useForeignDTD;
+  enum XML_ParamEntityParsing m_paramEntityParsing;
+#endif
+};
+
+#define MALLOC(s) (parser->m_mem.malloc_fcn((s)))
+#define REALLOC(p,s) (parser->m_mem.realloc_fcn((p),(s)))
+#define FREE(p) (parser->m_mem.free_fcn((p)))
+
+#define userData (parser->m_userData)
+#define handlerArg (parser->m_handlerArg)
+#define startElementHandler (parser->m_startElementHandler)
+#define endElementHandler (parser->m_endElementHandler)
+#define characterDataHandler (parser->m_characterDataHandler)
+#define processingInstructionHandler \
+        (parser->m_processingInstructionHandler)
+#define commentHandler (parser->m_commentHandler)
+#define startCdataSectionHandler \
+        (parser->m_startCdataSectionHandler)
+#define endCdataSectionHandler (parser->m_endCdataSectionHandler)
+#define defaultHandler (parser->m_defaultHandler)
+#define startDoctypeDeclHandler (parser->m_startDoctypeDeclHandler)
+#define endDoctypeDeclHandler (parser->m_endDoctypeDeclHandler)
+#define unparsedEntityDeclHandler \
+        (parser->m_unparsedEntityDeclHandler)
+#define notationDeclHandler (parser->m_notationDeclHandler)
+#define startNamespaceDeclHandler \
+        (parser->m_startNamespaceDeclHandler)
+#define endNamespaceDeclHandler (parser->m_endNamespaceDeclHandler)
+#define notStandaloneHandler (parser->m_notStandaloneHandler)
+#define externalEntityRefHandler \
+        (parser->m_externalEntityRefHandler)
+#define externalEntityRefHandlerArg \
+        (parser->m_externalEntityRefHandlerArg)
+#define internalEntityRefHandler \
+        (parser->m_internalEntityRefHandler)
+#define skippedEntityHandler (parser->m_skippedEntityHandler)
+#define unknownEncodingHandler (parser->m_unknownEncodingHandler)
+#define elementDeclHandler (parser->m_elementDeclHandler)
+#define attlistDeclHandler (parser->m_attlistDeclHandler)
+#define entityDeclHandler (parser->m_entityDeclHandler)
+#define xmlDeclHandler (parser->m_xmlDeclHandler)
+#define encoding (parser->m_encoding)
+#define initEncoding (parser->m_initEncoding)
+#define internalEncoding (parser->m_internalEncoding)
+#define unknownEncodingMem (parser->m_unknownEncodingMem)
+#define unknownEncodingData (parser->m_unknownEncodingData)
+#define unknownEncodingHandlerData \
+  (parser->m_unknownEncodingHandlerData)
+#define unknownEncodingRelease (parser->m_unknownEncodingRelease)
+#define protocolEncodingName (parser->m_protocolEncodingName)
+#define ns (parser->m_ns)
+#define ns_triplets (parser->m_ns_triplets)
+#define prologState (parser->m_prologState)
+#define processor (parser->m_processor)
+#define errorCode (parser->m_errorCode)
+#define eventPtr (parser->m_eventPtr)
+#define eventEndPtr (parser->m_eventEndPtr)
+#define positionPtr (parser->m_positionPtr)
+#define position (parser->m_position)
+#define openInternalEntities (parser->m_openInternalEntities)
+#define defaultExpandInternalEntities \
+        (parser->m_defaultExpandInternalEntities)
+#define tagLevel (parser->m_tagLevel)
+#define buffer (parser->m_buffer)
+#define bufferPtr (parser->m_bufferPtr)
+#define bufferEnd (parser->m_bufferEnd)
+#define parseEndByteIndex (parser->m_parseEndByteIndex)
+#define parseEndPtr (parser->m_parseEndPtr)
+#define bufferLim (parser->m_bufferLim)
+#define dataBuf (parser->m_dataBuf)
+#define dataBufEnd (parser->m_dataBufEnd)
+#define _dtd (parser->m_dtd)
+#define curBase (parser->m_curBase)
+#define declEntity (parser->m_declEntity)
+#define doctypeName (parser->m_doctypeName)
+#define doctypeSysid (parser->m_doctypeSysid)
+#define doctypePubid (parser->m_doctypePubid)
+#define declAttributeType (parser->m_declAttributeType)
+#define declNotationName (parser->m_declNotationName)
+#define declNotationPublicId (parser->m_declNotationPublicId)
+#define declElementType (parser->m_declElementType)
+#define declAttributeId (parser->m_declAttributeId)
+#define declAttributeIsCdata (parser->m_declAttributeIsCdata)
+#define declAttributeIsId (parser->m_declAttributeIsId)
+#define freeTagList (parser->m_freeTagList)
+#define freeBindingList (parser->m_freeBindingList)
+#define inheritedBindings (parser->m_inheritedBindings)
+#define tagStack (parser->m_tagStack)
+#define atts (parser->m_atts)
+#define attsSize (parser->m_attsSize)
+#define nSpecifiedAtts (parser->m_nSpecifiedAtts)
+#define idAttIndex (parser->m_idAttIndex)
+#define tempPool (parser->m_tempPool)
+#define temp2Pool (parser->m_temp2Pool)
+#define groupConnector (parser->m_groupConnector)
+#define groupSize (parser->m_groupSize)
+#define namespaceSeparator (parser->m_namespaceSeparator)
+#define parentParser (parser->m_parentParser)
+#ifdef XML_DTD
+#define isParamEntity (parser->m_isParamEntity)
+#define useForeignDTD (parser->m_useForeignDTD)
+#define paramEntityParsing (parser->m_paramEntityParsing)
+#endif /* XML_DTD */
+
+#define parsing \
+  (parentParser \
+    ? \
+    (isParamEntity \
+      ? \
+      (processor != externalParEntInitProcessor) \
+      : \
+      (processor != externalEntityInitProcessor)) \
+    : \
+    (processor != prologInitProcessor))
+
+XML_Parser
+XML_ParserCreate(const XML_Char *encodingName)
+{
+  return XML_ParserCreate_MM(encodingName, NULL, NULL);
+}
+
+XML_Parser
+XML_ParserCreateNS(const XML_Char *encodingName, XML_Char nsSep)
+{
+  XML_Char tmp[2];
+  *tmp = nsSep;
+  return XML_ParserCreate_MM(encodingName, NULL, tmp);
+}
+
+static const XML_Char implicitContext[] = {
+  'x', 'm', 'l', '=', 'h', 't', 't', 'p', ':', '/', '/',
+  'w', 'w', 'w', '.', 'w', '3', '.', 'o', 'r', 'g', '/',
+  'X', 'M', 'L', '/', '1', '9', '9', '8', '/',
+  'n', 'a', 'm', 'e', 's', 'p', 'a', 'c', 'e', '\0'
+};
+
+XML_Parser
+XML_ParserCreate_MM(const XML_Char *encodingName,
+                    const XML_Memory_Handling_Suite *memsuite,
+                    const XML_Char *nameSep)
+{
+  XML_Parser parser = parserCreate(encodingName, memsuite, nameSep, NULL);
+  if (parser != NULL && ns) {
+    /* implicit context only set for root parser, since child
+       parsers (i.e. external entity parsers) will inherit it
+    */
+    if (!setContext(parser, implicitContext)) {
+      XML_ParserFree(parser);
+      return NULL;
+    }
+  }
+  return parser;
+}
+
+static XML_Parser
+parserCreate(const XML_Char *encodingName,
+             const XML_Memory_Handling_Suite *memsuite,
+             const XML_Char *nameSep,
+             DTD *dtd)
+{
+  XML_Parser parser;
+
+  if (memsuite) {
+    XML_Memory_Handling_Suite *mtemp;
+    parser = (XML_Parser)
+      memsuite->malloc_fcn(sizeof(struct XML_ParserStruct));
+    if (parser != NULL) {
+      mtemp = (XML_Memory_Handling_Suite *)&(parser->m_mem);
+      mtemp->malloc_fcn = memsuite->malloc_fcn;
+      mtemp->realloc_fcn = memsuite->realloc_fcn;
+      mtemp->free_fcn = memsuite->free_fcn;
+    }
+  }
+  else {
+    XML_Memory_Handling_Suite *mtemp;
+    parser = (XML_Parser)malloc(sizeof(struct XML_ParserStruct));
+    if (parser != NULL) {
+      mtemp = (XML_Memory_Handling_Suite *)&(parser->m_mem);
+      mtemp->malloc_fcn = malloc;
+      mtemp->realloc_fcn = realloc;
+      mtemp->free_fcn = free;
+    }
+  }
+
+  if (!parser)
+    return parser;
+
+  buffer = NULL;
+  bufferLim = NULL;
+
+  attsSize = INIT_ATTS_SIZE;
+  atts = (ATTRIBUTE *)MALLOC(attsSize * sizeof(ATTRIBUTE));
+  if (atts == NULL) {
+    FREE(parser);
+    return NULL;
+  }
+  dataBuf = (XML_Char *)MALLOC(INIT_DATA_BUF_SIZE * sizeof(XML_Char));
+  if (dataBuf == NULL) {
+    FREE(atts);
+    FREE(parser);
+    return NULL;
+  }
+  dataBufEnd = dataBuf + INIT_DATA_BUF_SIZE;
+
+  if (dtd)
+    _dtd = dtd;
+  else {
+    _dtd = dtdCreate(&parser->m_mem);
+    if (_dtd == NULL) {
+      FREE(dataBuf);
+      FREE(atts);
+      FREE(parser);
+      return NULL;
+    }
+  }
+
+  freeBindingList = NULL;
+  freeTagList = NULL;
+
+  groupSize = 0;
+  groupConnector = NULL;
+
+  unknownEncodingHandler = NULL;
+  unknownEncodingHandlerData = NULL;
+
+  namespaceSeparator = '!';
+  ns = XML_FALSE;
+  ns_triplets = XML_FALSE;
+
+  poolInit(&tempPool, &(parser->m_mem));
+  poolInit(&temp2Pool, &(parser->m_mem));
+  parserInit(parser, encodingName);
+
+  if (encodingName && !protocolEncodingName) {
+    XML_ParserFree(parser);
+    return NULL;
+  }
+
+  if (nameSep) {
+    ns = XML_TRUE;
+    internalEncoding = XmlGetInternalEncodingNS();
+    namespaceSeparator = *nameSep;
+  }
+  else {
+    internalEncoding = XmlGetInternalEncoding();
+  }
+
+  return parser;
+}
+
+static void
+parserInit(XML_Parser parser, const XML_Char *encodingName)
+{
+  processor = prologInitProcessor;
+  XmlPrologStateInit(&prologState);
+  protocolEncodingName = (encodingName != NULL
+                          ? poolCopyString(&tempPool, encodingName)
+                          : NULL);
+  curBase = NULL;
+  XmlInitEncoding(&initEncoding, &encoding, 0);
+  userData = NULL;
+  handlerArg = NULL;
+  startElementHandler = NULL;
+  endElementHandler = NULL;
+  characterDataHandler = NULL;
+  processingInstructionHandler = NULL;
+  commentHandler = NULL;
+  startCdataSectionHandler = NULL;
+  endCdataSectionHandler = NULL;
+  defaultHandler = NULL;
+  startDoctypeDeclHandler = NULL;
+  endDoctypeDeclHandler = NULL;
+  unparsedEntityDeclHandler = NULL;
+  notationDeclHandler = NULL;
+  startNamespaceDeclHandler = NULL;
+  endNamespaceDeclHandler = NULL;
+  notStandaloneHandler = NULL;
+  externalEntityRefHandler = NULL;
+  externalEntityRefHandlerArg = parser;
+  skippedEntityHandler = NULL;
+  elementDeclHandler = NULL;
+  attlistDeclHandler = NULL;
+  entityDeclHandler = NULL;
+  xmlDeclHandler = NULL;
+  bufferPtr = buffer;
+  bufferEnd = buffer;
+  parseEndByteIndex = 0;
+  parseEndPtr = NULL;
+  declElementType = NULL;
+  declAttributeId = NULL;
+  declEntity = NULL;
+  doctypeName = NULL;
+  doctypeSysid = NULL;
+  doctypePubid = NULL;
+  declAttributeType = NULL;
+  declNotationName = NULL;
+  declNotationPublicId = NULL;
+  declAttributeIsCdata = XML_FALSE;
+  declAttributeIsId = XML_FALSE;
+  memset(&position, 0, sizeof(POSITION));
+  errorCode = XML_ERROR_NONE;
+  eventPtr = NULL;
+  eventEndPtr = NULL;
+  positionPtr = NULL;
+  openInternalEntities = 0;
+  defaultExpandInternalEntities = XML_TRUE;
+  tagLevel = 0;
+  tagStack = NULL;
+  inheritedBindings = NULL;
+  nSpecifiedAtts = 0;
+  unknownEncodingMem = NULL;
+  unknownEncodingRelease = NULL;
+  unknownEncodingData = NULL;
+  parentParser = NULL;
+#ifdef XML_DTD
+  isParamEntity = XML_FALSE;
+  useForeignDTD = XML_FALSE;
+  paramEntityParsing = XML_PARAM_ENTITY_PARSING_NEVER;
+#endif
+}
+
+/* moves list of bindings to freeBindingList */
+static void FASTCALL
+moveToFreeBindingList(XML_Parser parser, BINDING *bindings)
+{
+  while (bindings) {
+    BINDING *b = bindings;
+    bindings = bindings->nextTagBinding;
+    b->nextTagBinding = freeBindingList;
+    freeBindingList = b;
+  }
+}
+
+XML_Bool
+XML_ParserReset(XML_Parser parser, const XML_Char *encodingName)
+{
+  TAG *tStk;
+  if (parentParser)
+    return XML_FALSE;
+  /* move tagStack to freeTagList */
+  tStk = tagStack;
+  while (tStk) {
+    TAG *tag = tStk;
+    tStk = tStk->parent;
+    tag->parent = freeTagList;
+    moveToFreeBindingList(parser, tag->bindings);
+    tag->bindings = NULL;
+    freeTagList = tag;
+  }
+  moveToFreeBindingList(parser, inheritedBindings);
+  if (unknownEncodingMem)
+    FREE(unknownEncodingMem);
+  if (unknownEncodingRelease)
+    unknownEncodingRelease(unknownEncodingData);
+  poolClear(&tempPool);
+  poolClear(&temp2Pool);
+  parserInit(parser, encodingName);
+  dtdReset(_dtd, &parser->m_mem);
+  return setContext(parser, implicitContext);
+}
+
+enum XML_Status
+XML_SetEncoding(XML_Parser parser, const XML_Char *encodingName)
+{
+  /* Block after XML_Parse()/XML_ParseBuffer() has been called.
+     XXX There's no way for the caller to determine which of the
+     XXX possible error cases caused the XML_STATUS_ERROR return.
+  */
+  if (parsing)
+    return XML_STATUS_ERROR;
+  if (encodingName == NULL)
+    protocolEncodingName = NULL;
+  else {
+    protocolEncodingName = poolCopyString(&tempPool, encodingName);
+    if (!protocolEncodingName)
+      return XML_STATUS_ERROR;
+  }
+  return XML_STATUS_OK;
+}
+
+XML_Parser
+XML_ExternalEntityParserCreate(XML_Parser oldParser,
+                               const XML_Char *context,
+                               const XML_Char *encodingName)
+{
+  XML_Parser parser = oldParser;
+  DTD *newDtd = NULL;
+  DTD *oldDtd = _dtd;
+  XML_StartElementHandler oldStartElementHandler = startElementHandler;
+  XML_EndElementHandler oldEndElementHandler = endElementHandler;
+  XML_CharacterDataHandler oldCharacterDataHandler = characterDataHandler;
+  XML_ProcessingInstructionHandler oldProcessingInstructionHandler
+      = processingInstructionHandler;
+  XML_CommentHandler oldCommentHandler = commentHandler;
+  XML_StartCdataSectionHandler oldStartCdataSectionHandler
+      = startCdataSectionHandler;
+  XML_EndCdataSectionHandler oldEndCdataSectionHandler
+      = endCdataSectionHandler;
+  XML_DefaultHandler oldDefaultHandler = defaultHandler;
+  XML_UnparsedEntityDeclHandler oldUnparsedEntityDeclHandler
+      = unparsedEntityDeclHandler;
+  XML_NotationDeclHandler oldNotationDeclHandler = notationDeclHandler;
+  XML_StartNamespaceDeclHandler oldStartNamespaceDeclHandler
+      = startNamespaceDeclHandler;
+  XML_EndNamespaceDeclHandler oldEndNamespaceDeclHandler
+      = endNamespaceDeclHandler;
+  XML_NotStandaloneHandler oldNotStandaloneHandler = notStandaloneHandler;
+  XML_ExternalEntityRefHandler oldExternalEntityRefHandler
+      = externalEntityRefHandler;
+  XML_SkippedEntityHandler oldSkippedEntityHandler = skippedEntityHandler;
+  XML_UnknownEncodingHandler oldUnknownEncodingHandler
+      = unknownEncodingHandler;
+  XML_ElementDeclHandler oldElementDeclHandler = elementDeclHandler;
+  XML_AttlistDeclHandler oldAttlistDeclHandler = attlistDeclHandler;
+  XML_EntityDeclHandler oldEntityDeclHandler = entityDeclHandler;
+  XML_XmlDeclHandler oldXmlDeclHandler = xmlDeclHandler;
+  ELEMENT_TYPE * oldDeclElementType = declElementType;
+
+  void *oldUserData = userData;
+  void *oldHandlerArg = handlerArg;
+  XML_Bool oldDefaultExpandInternalEntities = defaultExpandInternalEntities;
+  XML_Parser oldExternalEntityRefHandlerArg = externalEntityRefHandlerArg;
+#ifdef XML_DTD
+  enum XML_ParamEntityParsing oldParamEntityParsing = paramEntityParsing;
+  int oldInEntityValue = prologState.inEntityValue;
+#endif
+  XML_Bool oldns_triplets = ns_triplets;
+
+#ifdef XML_DTD
+  if (!context)
+    newDtd = oldDtd;
+#endif /* XML_DTD */
+
+  /* Note that the magical uses of the pre-processor to make field
+     access look more like C++ require that `parser' be overwritten
+     here.  This makes this function more painful to follow than it
+     would be otherwise.
+  */
+  if (ns) {
+    XML_Char tmp[2];
+    *tmp = namespaceSeparator;
+    parser = parserCreate(encodingName, &parser->m_mem, tmp, newDtd);
+  }
+  else {
+    parser = parserCreate(encodingName, &parser->m_mem, NULL, newDtd);
+  }
+
+  if (!parser)
+    return NULL;
+
+  startElementHandler = oldStartElementHandler;
+  endElementHandler = oldEndElementHandler;
+  characterDataHandler = oldCharacterDataHandler;
+  processingInstructionHandler = oldProcessingInstructionHandler;
+  commentHandler = oldCommentHandler;
+  startCdataSectionHandler = oldStartCdataSectionHandler;
+  endCdataSectionHandler = oldEndCdataSectionHandler;
+  defaultHandler = oldDefaultHandler;
+  unparsedEntityDeclHandler = oldUnparsedEntityDeclHandler;
+  notationDeclHandler = oldNotationDeclHandler;
+  startNamespaceDeclHandler = oldStartNamespaceDeclHandler;
+  endNamespaceDeclHandler = oldEndNamespaceDeclHandler;
+  notStandaloneHandler = oldNotStandaloneHandler;
+  externalEntityRefHandler = oldExternalEntityRefHandler;
+  skippedEntityHandler = oldSkippedEntityHandler;
+  unknownEncodingHandler = oldUnknownEncodingHandler;
+  elementDeclHandler = oldElementDeclHandler;
+  attlistDeclHandler = oldAttlistDeclHandler;
+  entityDeclHandler = oldEntityDeclHandler;
+  xmlDeclHandler = oldXmlDeclHandler;
+  declElementType = oldDeclElementType;
+  userData = oldUserData;
+  if (oldUserData == oldHandlerArg)
+    handlerArg = userData;
+  else
+    handlerArg = parser;
+  if (oldExternalEntityRefHandlerArg != oldParser)
+    externalEntityRefHandlerArg = oldExternalEntityRefHandlerArg;
+  defaultExpandInternalEntities = oldDefaultExpandInternalEntities;
+  ns_triplets = oldns_triplets;
+  parentParser = oldParser;
+#ifdef XML_DTD
+  paramEntityParsing = oldParamEntityParsing;
+  prologState.inEntityValue = oldInEntityValue;
+  if (context) {
+#endif /* XML_DTD */
+    if (!dtdCopy(_dtd, oldDtd, &parser->m_mem)
+      || !setContext(parser, context)) {
+      XML_ParserFree(parser);
+      return NULL;
+    }
+    processor = externalEntityInitProcessor;
+#ifdef XML_DTD
+  }
+  else {
+    /* The DTD instance referenced by _dtd is shared between the document's
+       root parser and external PE parsers, therefore one does not need to
+       call setContext. In addition, one also *must* not call setContext,
+       because this would overwrite existing prefix->binding pointers in
+       _dtd with ones that get destroyed with the external PE parser.
+       This would leave those prefixes with dangling pointers.
+    */
+    isParamEntity = XML_TRUE;
+    XmlPrologStateInitExternalEntity(&prologState);
+    processor = externalParEntInitProcessor;
+  }
+#endif /* XML_DTD */
+  return parser;
+}
+
+static void FASTCALL
+destroyBindings(BINDING *bindings, XML_Parser parser)
+{
+  for (;;) {
+    BINDING *b = bindings;
+    if (!b)
+      break;
+    bindings = b->nextTagBinding;
+    FREE(b->uri);
+    FREE(b);
+  }
+}
+
+void
+XML_ParserFree(XML_Parser parser)
+{
+  for (;;) {
+    TAG *p;
+    if (tagStack == NULL) {
+      if (freeTagList == NULL)
+        break;
+      tagStack = freeTagList;
+      freeTagList = NULL;
+    }
+    p = tagStack;
+    tagStack = tagStack->parent;
+    FREE(p->buf);
+    destroyBindings(p->bindings, parser);
+    FREE(p);
+  }
+  destroyBindings(freeBindingList, parser);
+  destroyBindings(inheritedBindings, parser);
+  poolDestroy(&tempPool);
+  poolDestroy(&temp2Pool);
+#ifdef XML_DTD
+  /* external parameter entity parsers share the DTD structure
+     parser->m_dtd with the root parser, so we must not destroy it
+  */
+  if (!isParamEntity && _dtd)
+#else
+  if (_dtd)
+#endif /* XML_DTD */
+    dtdDestroy(_dtd, (XML_Bool)!parentParser, &parser->m_mem);
+  FREE((void *)atts);
+  if (groupConnector)
+    FREE(groupConnector);
+  if (buffer)
+    FREE(buffer);
+  FREE(dataBuf);
+  if (unknownEncodingMem)
+    FREE(unknownEncodingMem);
+  if (unknownEncodingRelease)
+    unknownEncodingRelease(unknownEncodingData);
+  FREE(parser);
+}
+
+void
+XML_UseParserAsHandlerArg(XML_Parser parser)
+{
+  handlerArg = parser;
+}
+
+enum XML_Error
+XML_UseForeignDTD(XML_Parser parser, XML_Bool useDTD)
+{
+#ifdef XML_DTD
+  /* block after XML_Parse()/XML_ParseBuffer() has been called */
+  if (parsing)
+    return XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING;
+  useForeignDTD = useDTD;
+  return XML_ERROR_NONE;
+#else
+  return XML_ERROR_FEATURE_REQUIRES_XML_DTD;
+#endif
+}
+
+void
+XML_SetReturnNSTriplet(XML_Parser parser, int do_nst)
+{
+  /* block after XML_Parse()/XML_ParseBuffer() has been called */
+  if (parsing)
+    return;
+  ns_triplets = do_nst ? XML_TRUE : XML_FALSE;
+}
+
+void
+XML_SetUserData(XML_Parser parser, void *p)
+{
+  if (handlerArg == userData)
+    handlerArg = userData = p;
+  else
+    userData = p;
+}
+
+enum XML_Status
+XML_SetBase(XML_Parser parser, const XML_Char *p)
+{
+  if (p) {
+    p = poolCopyString(&_dtd->pool, p);
+    if (!p)
+      return XML_STATUS_ERROR;
+    curBase = p;
+  }
+  else
+    curBase = NULL;
+  return XML_STATUS_OK;
+}
+
+const XML_Char *
+XML_GetBase(XML_Parser parser)
+{
+  return curBase;
+}
+
+int
+XML_GetSpecifiedAttributeCount(XML_Parser parser)
+{
+  return nSpecifiedAtts;
+}
+
+int
+XML_GetIdAttributeIndex(XML_Parser parser)
+{
+  return idAttIndex;
+}
+
+void
+XML_SetElementHandler(XML_Parser parser,
+                      XML_StartElementHandler start,
+                      XML_EndElementHandler end)
+{
+  startElementHandler = start;
+  endElementHandler = end;
+}
+
+void
+XML_SetStartElementHandler(XML_Parser parser,
+                           XML_StartElementHandler start) {
+  startElementHandler = start;
+}
+
+void
+XML_SetEndElementHandler(XML_Parser parser,
+                         XML_EndElementHandler end) {
+  endElementHandler = end;
+}
+
+void
+XML_SetCharacterDataHandler(XML_Parser parser,
+                            XML_CharacterDataHandler handler)
+{
+  characterDataHandler = handler;
+}
+
+void
+XML_SetProcessingInstructionHandler(XML_Parser parser,
+                                    XML_ProcessingInstructionHandler handler)
+{
+  processingInstructionHandler = handler;
+}
+
+void
+XML_SetCommentHandler(XML_Parser parser,
+                      XML_CommentHandler handler)
+{
+  commentHandler = handler;
+}
+
+void
+XML_SetCdataSectionHandler(XML_Parser parser,
+                           XML_StartCdataSectionHandler start,
+                           XML_EndCdataSectionHandler end)
+{
+  startCdataSectionHandler = start;
+  endCdataSectionHandler = end;
+}
+
+void
+XML_SetStartCdataSectionHandler(XML_Parser parser,
+                                XML_StartCdataSectionHandler start) {
+  startCdataSectionHandler = start;
+}
+
+void
+XML_SetEndCdataSectionHandler(XML_Parser parser,
+                              XML_EndCdataSectionHandler end) {
+  endCdataSectionHandler = end;
+}
+
+void
+XML_SetDefaultHandler(XML_Parser parser,
+                      XML_DefaultHandler handler)
+{
+  defaultHandler = handler;
+  defaultExpandInternalEntities = XML_FALSE;
+}
+
+void
+XML_SetDefaultHandlerExpand(XML_Parser parser,
+                            XML_DefaultHandler handler)
+{
+  defaultHandler = handler;
+  defaultExpandInternalEntities = XML_TRUE;
+}
+
+void
+XML_SetDoctypeDeclHandler(XML_Parser parser,
+                          XML_StartDoctypeDeclHandler start,
+                          XML_EndDoctypeDeclHandler end)
+{
+  startDoctypeDeclHandler = start;
+  endDoctypeDeclHandler = end;
+}
+
+void
+XML_SetStartDoctypeDeclHandler(XML_Parser parser,
+                               XML_StartDoctypeDeclHandler start) {
+  startDoctypeDeclHandler = start;
+}
+
+void
+XML_SetEndDoctypeDeclHandler(XML_Parser parser,
+                             XML_EndDoctypeDeclHandler end) {
+  endDoctypeDeclHandler = end;
+}
+
+void
+XML_SetUnparsedEntityDeclHandler(XML_Parser parser,
+                                 XML_UnparsedEntityDeclHandler handler)
+{
+  unparsedEntityDeclHandler = handler;
+}
+
+void
+XML_SetNotationDeclHandler(XML_Parser parser,
+                           XML_NotationDeclHandler handler)
+{
+  notationDeclHandler = handler;
+}
+
+void
+XML_SetNamespaceDeclHandler(XML_Parser parser,
+                            XML_StartNamespaceDeclHandler start,
+                            XML_EndNamespaceDeclHandler end)
+{
+  startNamespaceDeclHandler = start;
+  endNamespaceDeclHandler = end;
+}
+
+void
+XML_SetStartNamespaceDeclHandler(XML_Parser parser,
+                                 XML_StartNamespaceDeclHandler start) {
+  startNamespaceDeclHandler = start;
+}
+
+void
+XML_SetEndNamespaceDeclHandler(XML_Parser parser,
+                               XML_EndNamespaceDeclHandler end) {
+  endNamespaceDeclHandler = end;
+}
+
+void
+XML_SetNotStandaloneHandler(XML_Parser parser,
+                            XML_NotStandaloneHandler handler)
+{
+  notStandaloneHandler = handler;
+}
+
+void
+XML_SetExternalEntityRefHandler(XML_Parser parser,
+                                XML_ExternalEntityRefHandler handler)
+{
+  externalEntityRefHandler = handler;
+}
+
+void
+XML_SetExternalEntityRefHandlerArg(XML_Parser parser, void *arg)
+{
+  if (arg)
+    externalEntityRefHandlerArg = (XML_Parser)arg;
+  else
+    externalEntityRefHandlerArg = parser;
+}
+
+void
+XML_SetSkippedEntityHandler(XML_Parser parser,
+                            XML_SkippedEntityHandler handler)
+{
+  skippedEntityHandler = handler;
+}
+
+void
+XML_SetUnknownEncodingHandler(XML_Parser parser,
+                              XML_UnknownEncodingHandler handler,
+                              void *data)
+{
+  unknownEncodingHandler = handler;
+  unknownEncodingHandlerData = data;
+}
+
+void
+XML_SetElementDeclHandler(XML_Parser parser,
+                          XML_ElementDeclHandler eldecl)
+{
+  elementDeclHandler = eldecl;
+}
+
+void
+XML_SetAttlistDeclHandler(XML_Parser parser,
+                          XML_AttlistDeclHandler attdecl)
+{
+  attlistDeclHandler = attdecl;
+}
+
+void
+XML_SetEntityDeclHandler(XML_Parser parser,
+                         XML_EntityDeclHandler handler)
+{
+  entityDeclHandler = handler;
+}
+
+void
+XML_SetXmlDeclHandler(XML_Parser parser,
+                      XML_XmlDeclHandler handler) {
+  xmlDeclHandler = handler;
+}
+
+int
+XML_SetParamEntityParsing(XML_Parser parser,
+                          enum XML_ParamEntityParsing peParsing)
+{
+  /* block after XML_Parse()/XML_ParseBuffer() has been called */
+  if (parsing)
+    return 0;
+#ifdef XML_DTD
+  paramEntityParsing = peParsing;
+  return 1;
+#else
+  return peParsing == XML_PARAM_ENTITY_PARSING_NEVER;
+#endif
+}
+
+enum XML_Status
+XML_Parse(XML_Parser parser, const char *s, int len, int isFinal)
+{
+  if (len == 0) {
+    if (!isFinal)
+      return XML_STATUS_OK;
+    positionPtr = bufferPtr;
+    errorCode = processor(parser, bufferPtr, parseEndPtr = bufferEnd, 0);
+    if (errorCode == XML_ERROR_NONE)
+      return XML_STATUS_OK;
+    eventEndPtr = eventPtr;
+    processor = errorProcessor;
+    return XML_STATUS_ERROR;
+  }
+#ifndef XML_CONTEXT_BYTES
+  else if (bufferPtr == bufferEnd) {
+    const char *end;
+    int nLeftOver;
+    parseEndByteIndex += len;
+    positionPtr = s;
+    if (isFinal) {
+      errorCode = processor(parser, s, parseEndPtr = s + len, 0);
+      if (errorCode == XML_ERROR_NONE)
+        return XML_STATUS_OK;
+      eventEndPtr = eventPtr;
+      processor = errorProcessor;
+      return XML_STATUS_ERROR;
+    }
+    errorCode = processor(parser, s, parseEndPtr = s + len, &end);
+    if (errorCode != XML_ERROR_NONE) {
+      eventEndPtr = eventPtr;
+      processor = errorProcessor;
+      return XML_STATUS_ERROR;
+    }
+    XmlUpdatePosition(encoding, positionPtr, end, &position);
+    positionPtr = end;
+    nLeftOver = s + len - end;
+    if (nLeftOver) {
+      if (buffer == NULL || nLeftOver > bufferLim - buffer) {
+        /* FIXME avoid integer overflow */
+        char *temp;
+        temp = (buffer == NULL
+                ? (char *)MALLOC(len * 2)
+                : (char *)REALLOC(buffer, len * 2));
+        if (temp == NULL) {
+          errorCode = XML_ERROR_NO_MEMORY;
+          return XML_STATUS_ERROR;
+        }
+        buffer = temp;
+        if (!buffer) {
+          errorCode = XML_ERROR_NO_MEMORY;
+          eventPtr = eventEndPtr = NULL;
+          processor = errorProcessor;
+          return XML_STATUS_ERROR;
+        }
+        bufferLim = buffer + len * 2;
+      }
+      memcpy(buffer, end, nLeftOver);
+      bufferPtr = buffer;
+      bufferEnd = buffer + nLeftOver;
+    }
+    return XML_STATUS_OK;
+  }
+#endif  /* not defined XML_CONTEXT_BYTES */
+  else {
+    void *buff = XML_GetBuffer(parser, len);
+    if (buff == NULL)
+      return XML_STATUS_ERROR;
+    else {
+      memcpy(buff, s, len);
+      return XML_ParseBuffer(parser, len, isFinal);
+    }
+  }
+}
+
+enum XML_Status
+XML_ParseBuffer(XML_Parser parser, int len, int isFinal)
+{
+  const char *start = bufferPtr;
+  positionPtr = start;
+  bufferEnd += len;
+  parseEndByteIndex += len;
+  errorCode = processor(parser, start, parseEndPtr = bufferEnd,
+                        isFinal ? (const char **)NULL : &bufferPtr);
+  if (errorCode == XML_ERROR_NONE) {
+    if (!isFinal) {
+      XmlUpdatePosition(encoding, positionPtr, bufferPtr, &position);
+      positionPtr = bufferPtr;
+    }
+    return XML_STATUS_OK;
+  }
+  else {
+    eventEndPtr = eventPtr;
+    processor = errorProcessor;
+    return XML_STATUS_ERROR;
+  }
+}
+
+void *
+XML_GetBuffer(XML_Parser parser, int len)
+{
+  if (len > bufferLim - bufferEnd) {
+    /* FIXME avoid integer overflow */
+    int neededSize = len + (bufferEnd - bufferPtr);
+#ifdef XML_CONTEXT_BYTES
+    int keep = bufferPtr - buffer;
+
+    if (keep > XML_CONTEXT_BYTES)
+      keep = XML_CONTEXT_BYTES;
+    neededSize += keep;
+#endif  /* defined XML_CONTEXT_BYTES */
+    if (neededSize  <= bufferLim - buffer) {
+#ifdef XML_CONTEXT_BYTES
+      if (keep < bufferPtr - buffer) {
+        int offset = (bufferPtr - buffer) - keep;
+        memmove(buffer, &buffer[offset], bufferEnd - bufferPtr + keep);
+        bufferEnd -= offset;
+        bufferPtr -= offset;
+      }
+#else
+      memmove(buffer, bufferPtr, bufferEnd - bufferPtr);
+      bufferEnd = buffer + (bufferEnd - bufferPtr);
+      bufferPtr = buffer;
+#endif  /* not defined XML_CONTEXT_BYTES */
+    }
+    else {
+      char *newBuf;
+      int bufferSize = bufferLim - bufferPtr;
+      if (bufferSize == 0)
+        bufferSize = INIT_BUFFER_SIZE;
+      do {
+        bufferSize *= 2;
+      } while (bufferSize < neededSize);
+      newBuf = (char *)MALLOC(bufferSize);
+      if (newBuf == 0) {
+        errorCode = XML_ERROR_NO_MEMORY;
+        return NULL;
+      }
+      bufferLim = newBuf + bufferSize;
+#ifdef XML_CONTEXT_BYTES
+      if (bufferPtr) {
+        int keep = bufferPtr - buffer;
+        if (keep > XML_CONTEXT_BYTES)
+          keep = XML_CONTEXT_BYTES;
+        memcpy(newBuf, &bufferPtr[-keep], bufferEnd - bufferPtr + keep);
+        FREE(buffer);
+        buffer = newBuf;
+        bufferEnd = buffer + (bufferEnd - bufferPtr) + keep;
+        bufferPtr = buffer + keep;
+      }
+      else {
+        bufferEnd = newBuf + (bufferEnd - bufferPtr);
+        bufferPtr = buffer = newBuf;
+      }
+#else
+      if (bufferPtr) {
+        memcpy(newBuf, bufferPtr, bufferEnd - bufferPtr);
+        FREE(buffer);
+      }
+      bufferEnd = newBuf + (bufferEnd - bufferPtr);
+      bufferPtr = buffer = newBuf;
+#endif  /* not defined XML_CONTEXT_BYTES */
+    }
+  }
+  return bufferEnd;
+}
+
+enum XML_Error
+XML_GetErrorCode(XML_Parser parser)
+{
+  return errorCode;
+}
+
+long
+XML_GetCurrentByteIndex(XML_Parser parser)
+{
+  if (eventPtr)
+    return parseEndByteIndex - (parseEndPtr - eventPtr);
+  return -1;
+}
+
+int
+XML_GetCurrentByteCount(XML_Parser parser)
+{
+  if (eventEndPtr && eventPtr)
+    return eventEndPtr - eventPtr;
+  return 0;
+}
+
+const char *
+XML_GetInputContext(XML_Parser parser, int *offset, int *size)
+{
+#ifdef XML_CONTEXT_BYTES
+  if (eventPtr && buffer) {
+    *offset = eventPtr - buffer;
+    *size   = bufferEnd - buffer;
+    return buffer;
+  }
+#endif /* defined XML_CONTEXT_BYTES */
+  return (char *) 0;
+}
+
+int
+XML_GetCurrentLineNumber(XML_Parser parser)
+{
+  if (eventPtr) {
+    XmlUpdatePosition(encoding, positionPtr, eventPtr, &position);
+    positionPtr = eventPtr;
+  }
+  return position.lineNumber + 1;
+}
+
+int
+XML_GetCurrentColumnNumber(XML_Parser parser)
+{
+  if (eventPtr) {
+    XmlUpdatePosition(encoding, positionPtr, eventPtr, &position);
+    positionPtr = eventPtr;
+  }
+  return position.columnNumber;
+}
+
+void
+XML_FreeContentModel(XML_Parser parser, XML_Content *model)
+{
+  FREE(model);
+}
+
+void *
+XML_MemMalloc(XML_Parser parser, size_t size)
+{
+  return MALLOC(size);
+}
+
+void *
+XML_MemRealloc(XML_Parser parser, void *ptr, size_t size)
+{
+  return REALLOC(ptr, size);
+}
+
+void
+XML_MemFree(XML_Parser parser, void *ptr)
+{
+  FREE(ptr);
+}
+
+void
+XML_DefaultCurrent(XML_Parser parser)
+{
+  if (defaultHandler) {
+    if (openInternalEntities)
+      reportDefault(parser,
+                    internalEncoding,
+                    openInternalEntities->internalEventPtr,
+                    openInternalEntities->internalEventEndPtr);
+    else
+      reportDefault(parser, encoding, eventPtr, eventEndPtr);
+  }
+}
+
+const XML_LChar *
+XML_ErrorString(enum XML_Error code)
+{
+  static const XML_LChar *message[] = {
+    0,
+    XML_L("out of memory"),
+    XML_L("syntax error"),
+    XML_L("no element found"),
+    XML_L("not well-formed (invalid token)"),
+    XML_L("unclosed token"),
+    XML_L("partial character"),
+    XML_L("mismatched tag"),
+    XML_L("duplicate attribute"),
+    XML_L("junk after document element"),
+    XML_L("illegal parameter entity reference"),
+    XML_L("undefined entity"),
+    XML_L("recursive entity reference"),
+    XML_L("asynchronous entity"),
+    XML_L("reference to invalid character number"),
+    XML_L("reference to binary entity"),
+    XML_L("reference to external entity in attribute"),
+    XML_L("xml declaration not at start of external entity"),
+    XML_L("unknown encoding"),
+    XML_L("encoding specified in XML declaration is incorrect"),
+    XML_L("unclosed CDATA section"),
+    XML_L("error in processing external entity reference"),
+    XML_L("document is not standalone"),
+    XML_L("unexpected parser state - please send a bug report"),
+    XML_L("entity declared in parameter entity"),
+    XML_L("requested feature requires XML_DTD support in Expat"),
+    XML_L("cannot change setting once parsing has begun")
+  };
+  if (code > 0 && code < sizeof(message)/sizeof(message[0]))
+    return message[code];
+  return NULL;
+}
+
+const XML_LChar *
+XML_ExpatVersion(void) {
+
+  /* V1 is used to string-ize the version number. However, it would
+     string-ize the actual version macro *names* unless we get them
+     substituted before being passed to V1. CPP is defined to expand
+     a macro, then rescan for more expansions. Thus, we use V2 to expand
+     the version macros, then CPP will expand the resulting V1() macro
+     with the correct numerals. */
+  /* ### I'm assuming cpp is portable in this respect... */
+
+#define V1(a,b,c) XML_L(#a)XML_L(".")XML_L(#b)XML_L(".")XML_L(#c)
+#define V2(a,b,c) XML_L("expat_")V1(a,b,c)
+
+  return V2(XML_MAJOR_VERSION, XML_MINOR_VERSION, XML_MICRO_VERSION);
+
+#undef V1
+#undef V2
+}
+
+XML_Expat_Version
+XML_ExpatVersionInfo(void)
+{
+  XML_Expat_Version version;
+
+  version.major = XML_MAJOR_VERSION;
+  version.minor = XML_MINOR_VERSION;
+  version.micro = XML_MICRO_VERSION;
+
+  return version;
+}
+
+const XML_Feature *
+XML_GetFeatureList(void)
+{
+  static XML_Feature features[] = {
+    {XML_FEATURE_SIZEOF_XML_CHAR,  XML_L("sizeof(XML_Char)")},
+    {XML_FEATURE_SIZEOF_XML_LCHAR, XML_L("sizeof(XML_LChar)")},
+#ifdef XML_UNICODE
+    {XML_FEATURE_UNICODE,          XML_L("XML_UNICODE")},
+#endif
+#ifdef XML_UNICODE_WCHAR_T
+    {XML_FEATURE_UNICODE_WCHAR_T,  XML_L("XML_UNICODE_WCHAR_T")},
+#endif
+#ifdef XML_DTD
+    {XML_FEATURE_DTD,              XML_L("XML_DTD")},
+#endif
+#ifdef XML_CONTEXT_BYTES
+    {XML_FEATURE_CONTEXT_BYTES,    XML_L("XML_CONTEXT_BYTES"),
+     XML_CONTEXT_BYTES},
+#endif
+#ifdef XML_MIN_SIZE
+    {XML_FEATURE_MIN_SIZE,         XML_L("XML_MIN_SIZE")},
+#endif
+    {XML_FEATURE_END,              NULL}
+  };
+
+  features[0].value = sizeof(XML_Char);
+  features[1].value = sizeof(XML_LChar);
+  return features;
+}
+
+/* Initially tag->rawName always points into the parse buffer;
+   for those TAG instances opened while the current parse buffer was
+   processed, and not yet closed, we need to store tag->rawName in a more
+   permanent location, since the parse buffer is about to be discarded.
+*/
+static XML_Bool
+storeRawNames(XML_Parser parser)
+{
+  TAG *tag = tagStack;
+  while (tag) {
+    int bufSize;
+    int nameLen = sizeof(XML_Char) * (tag->name.strLen + 1);
+    char *rawNameBuf = tag->buf + nameLen;
+    /* Stop if already stored.  Since tagStack is a stack, we can stop
+       at the first entry that has already been copied; everything
+       below it in the stack is already been accounted for in a
+       previous call to this function.
+    */
+    if (tag->rawName == rawNameBuf)
+      break;
+    /* For re-use purposes we need to ensure that the
+       size of tag->buf is a multiple of sizeof(XML_Char).
+    */
+    bufSize = nameLen + ROUND_UP(tag->rawNameLength, sizeof(XML_Char));
+    if (bufSize > tag->bufEnd - tag->buf) {
+      char *temp = (char *)REALLOC(tag->buf, bufSize);
+      if (temp == NULL)
+        return XML_FALSE;
+      /* if tag->name.str points to tag->buf (only when namespace
+         processing is off) then we have to update it
+      */
+      if (tag->name.str == (XML_Char *)tag->buf)
+        tag->name.str = (XML_Char *)temp;
+      /* if tag->name.localPart is set (when namespace processing is on)
+         then update it as well, since it will always point into tag->buf
+      */
+      if (tag->name.localPart)
+        tag->name.localPart = (XML_Char *)temp + (tag->name.localPart -
+                                                  (XML_Char *)tag->buf);
+      tag->buf = temp;
+      tag->bufEnd = temp + bufSize;
+      rawNameBuf = temp + nameLen;
+    }
+    memcpy(rawNameBuf, tag->rawName, tag->rawNameLength);
+    tag->rawName = rawNameBuf;
+    tag = tag->parent;
+  }
+  return XML_TRUE;
+}
+
+static enum XML_Error PTRCALL
+contentProcessor(XML_Parser parser,
+                 const char *start,
+                 const char *end,
+                 const char **endPtr)
+{
+  enum XML_Error result =
+    doContent(parser, 0, encoding, start, end, endPtr);
+  if (result != XML_ERROR_NONE)
+    return result;
+  if (!storeRawNames(parser))
+    return XML_ERROR_NO_MEMORY;
+  return result;
+}
+
+static enum XML_Error PTRCALL
+externalEntityInitProcessor(XML_Parser parser,
+                            const char *start,
+                            const char *end,
+                            const char **endPtr)
+{
+  enum XML_Error result = initializeEncoding(parser);
+  if (result != XML_ERROR_NONE)
+    return result;
+  processor = externalEntityInitProcessor2;
+  return externalEntityInitProcessor2(parser, start, end, endPtr);
+}
+
+static enum XML_Error PTRCALL
+externalEntityInitProcessor2(XML_Parser parser,
+                             const char *start,
+                             const char *end,
+                             const char **endPtr)
+{
+  const char *next = start; /* XmlContentTok doesn't always set the last arg */
+  int tok = XmlContentTok(encoding, start, end, &next);
+  switch (tok) {
+  case XML_TOK_BOM:
+    /* If we are at the end of the buffer, this would cause the next stage,
+       i.e. externalEntityInitProcessor3, to pass control directly to
+       doContent (by detecting XML_TOK_NONE) without processing any xml text
+       declaration - causing the error XML_ERROR_MISPLACED_XML_PI in doContent.
+    */
+    if (next == end && endPtr) {
+      *endPtr = next;
+      return XML_ERROR_NONE;
+    }
+    start = next;
+    break;
+  case XML_TOK_PARTIAL:
+    if (endPtr) {
+      *endPtr = start;
+      return XML_ERROR_NONE;
+    }
+    eventPtr = start;
+    return XML_ERROR_UNCLOSED_TOKEN;
+  case XML_TOK_PARTIAL_CHAR:
+    if (endPtr) {
+      *endPtr = start;
+      return XML_ERROR_NONE;
+    }
+    eventPtr = start;
+    return XML_ERROR_PARTIAL_CHAR;
+  }
+  processor = externalEntityInitProcessor3;
+  return externalEntityInitProcessor3(parser, start, end, endPtr);
+}
+
+static enum XML_Error PTRCALL
+externalEntityInitProcessor3(XML_Parser parser,
+                             const char *start,
+                             const char *end,
+                             const char **endPtr)
+{
+  const char *next = start; /* XmlContentTok doesn't always set the last arg */
+  int tok = XmlContentTok(encoding, start, end, &next);
+  switch (tok) {
+  case XML_TOK_XML_DECL:
+    {
+      enum XML_Error result = processXmlDecl(parser, 1, start, next);
+      if (result != XML_ERROR_NONE)
+        return result;
+      start = next;
+    }
+    break;
+  case XML_TOK_PARTIAL:
+    if (endPtr) {
+      *endPtr = start;
+      return XML_ERROR_NONE;
+    }
+    eventPtr = start;
+    return XML_ERROR_UNCLOSED_TOKEN;
+  case XML_TOK_PARTIAL_CHAR:
+    if (endPtr) {
+      *endPtr = start;
+      return XML_ERROR_NONE;
+    }
+    eventPtr = start;
+    return XML_ERROR_PARTIAL_CHAR;
+  }
+  processor = externalEntityContentProcessor;
+  tagLevel = 1;
+  return externalEntityContentProcessor(parser, start, end, endPtr);
+}
+
+static enum XML_Error PTRCALL
+externalEntityContentProcessor(XML_Parser parser,
+                               const char *start,
+                               const char *end,
+                               const char **endPtr)
+{
+  enum XML_Error result =
+    doContent(parser, 1, encoding, start, end, endPtr);
+  if (result != XML_ERROR_NONE)
+    return result;
+  if (!storeRawNames(parser))
+    return XML_ERROR_NO_MEMORY;
+  return result;
+}
+
+static enum XML_Error
+doContent(XML_Parser parser,
+          int startTagLevel,
+          const ENCODING *enc,
+          const char *s,
+          const char *end,
+          const char **nextPtr)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  const char **eventPP;
+  const char **eventEndPP;
+  if (enc == encoding) {
+    eventPP = &eventPtr;
+    eventEndPP = &eventEndPtr;
+  }
+  else {
+    eventPP = &(openInternalEntities->internalEventPtr);
+    eventEndPP = &(openInternalEntities->internalEventEndPtr);
+  }
+  *eventPP = s;
+  for (;;) {
+    const char *next = s; /* XmlContentTok doesn't always set the last arg */
+    int tok = XmlContentTok(enc, s, end, &next);
+    *eventEndPP = next;
+    switch (tok) {
+    case XML_TOK_TRAILING_CR:
+      if (nextPtr) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      *eventEndPP = end;
+      if (characterDataHandler) {
+        XML_Char c = 0xA;
+        characterDataHandler(handlerArg, &c, 1);
+      }
+      else if (defaultHandler)
+        reportDefault(parser, enc, s, end);
+      if (startTagLevel == 0)
+        return XML_ERROR_NO_ELEMENTS;
+      if (tagLevel != startTagLevel)
+        return XML_ERROR_ASYNC_ENTITY;
+      return XML_ERROR_NONE;
+    case XML_TOK_NONE:
+      if (nextPtr) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      if (startTagLevel > 0) {
+        if (tagLevel != startTagLevel)
+          return XML_ERROR_ASYNC_ENTITY;
+        return XML_ERROR_NONE;
+      }
+      return XML_ERROR_NO_ELEMENTS;
+    case XML_TOK_INVALID:
+      *eventPP = next;
+      return XML_ERROR_INVALID_TOKEN;
+    case XML_TOK_PARTIAL:
+      if (nextPtr) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      return XML_ERROR_UNCLOSED_TOKEN;
+    case XML_TOK_PARTIAL_CHAR:
+      if (nextPtr) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      return XML_ERROR_PARTIAL_CHAR;
+    case XML_TOK_ENTITY_REF:
+      {
+        const XML_Char *name;
+        ENTITY *entity;
+        XML_Char ch = (XML_Char) XmlPredefinedEntityName(enc,
+                                              s + enc->minBytesPerChar,
+                                              next - enc->minBytesPerChar);
+        if (ch) {
+          if (characterDataHandler)
+            characterDataHandler(handlerArg, &ch, 1);
+          else if (defaultHandler)
+            reportDefault(parser, enc, s, next);
+          break;
+        }
+        name = poolStoreString(&dtd->pool, enc,
+                                s + enc->minBytesPerChar,
+                                next - enc->minBytesPerChar);
+        if (!name)
+          return XML_ERROR_NO_MEMORY;
+        entity = (ENTITY *)lookup(&dtd->generalEntities, name, 0);
+        poolDiscard(&dtd->pool);
+        /* First, determine if a check for an existing declaration is needed;
+           if yes, check that the entity exists, and that it is internal,
+           otherwise call the skipped entity or default handler.
+        */
+        if (!dtd->hasParamEntityRefs || dtd->standalone) {
+          if (!entity)
+            return XML_ERROR_UNDEFINED_ENTITY;
+          else if (!entity->is_internal)
+            return XML_ERROR_ENTITY_DECLARED_IN_PE;
+        }
+        else if (!entity) {
+          if (skippedEntityHandler)
+            skippedEntityHandler(handlerArg, name, 0);
+          else if (defaultHandler)
+            reportDefault(parser, enc, s, next);
+          break;
+        }
+        if (entity->open)
+          return XML_ERROR_RECURSIVE_ENTITY_REF;
+        if (entity->notation)
+          return XML_ERROR_BINARY_ENTITY_REF;
+        if (entity->textPtr) {
+          enum XML_Error result;
+          OPEN_INTERNAL_ENTITY openEntity;
+          if (!defaultExpandInternalEntities) {
+            if (skippedEntityHandler)
+              skippedEntityHandler(handlerArg, entity->name, 0);
+            else if (defaultHandler)
+              reportDefault(parser, enc, s, next);
+            break;
+          }
+          entity->open = XML_TRUE;
+          openEntity.next = openInternalEntities;
+          openInternalEntities = &openEntity;
+          openEntity.entity = entity;
+          openEntity.internalEventPtr = NULL;
+          openEntity.internalEventEndPtr = NULL;
+          result = doContent(parser,
+                             tagLevel,
+                             internalEncoding,
+                             (char *)entity->textPtr,
+                             (char *)(entity->textPtr + entity->textLen),
+                             0);
+          entity->open = XML_FALSE;
+          openInternalEntities = openEntity.next;
+          if (result)
+            return result;
+        }
+        else if (externalEntityRefHandler) {
+          const XML_Char *context;
+          entity->open = XML_TRUE;
+          context = getContext(parser);
+          entity->open = XML_FALSE;
+          if (!context)
+            return XML_ERROR_NO_MEMORY;
+          if (!externalEntityRefHandler((XML_Parser)externalEntityRefHandlerArg,
+                                        context,
+                                        entity->base,
+                                        entity->systemId,
+                                        entity->publicId))
+            return XML_ERROR_EXTERNAL_ENTITY_HANDLING;
+          poolDiscard(&tempPool);
+        }
+        else if (defaultHandler)
+          reportDefault(parser, enc, s, next);
+        break;
+      }
+    case XML_TOK_START_TAG_NO_ATTS:
+      /* fall through */
+    case XML_TOK_START_TAG_WITH_ATTS:
+      {
+        TAG *tag;
+        enum XML_Error result;
+        XML_Char *toPtr;
+        if (freeTagList) {
+          tag = freeTagList;
+          freeTagList = freeTagList->parent;
+        }
+        else {
+          tag = (TAG *)MALLOC(sizeof(TAG));
+          if (!tag)
+            return XML_ERROR_NO_MEMORY;
+          tag->buf = (char *)MALLOC(INIT_TAG_BUF_SIZE);
+          if (!tag->buf) {
+            FREE(tag);
+            return XML_ERROR_NO_MEMORY;
+          }
+          tag->bufEnd = tag->buf + INIT_TAG_BUF_SIZE;
+        }
+        tag->bindings = NULL;
+        tag->parent = tagStack;
+        tagStack = tag;
+        tag->name.localPart = NULL;
+        tag->name.prefix = NULL;
+        tag->rawName = s + enc->minBytesPerChar;
+        tag->rawNameLength = XmlNameLength(enc, tag->rawName);
+        ++tagLevel;
+        {
+          const char *rawNameEnd = tag->rawName + tag->rawNameLength;
+          const char *fromPtr = tag->rawName;
+          toPtr = (XML_Char *)tag->buf;
+          for (;;) {
+            int bufSize;
+            int convLen;
+            XmlConvert(enc,
+                       &fromPtr, rawNameEnd,
+                       (ICHAR **)&toPtr, (ICHAR *)tag->bufEnd - 1);
+            convLen = toPtr - (XML_Char *)tag->buf;
+            if (fromPtr == rawNameEnd) {
+              tag->name.strLen = convLen;
+              break;
+            }
+            bufSize = (tag->bufEnd - tag->buf) << 1;
+            {
+              char *temp = (char *)REALLOC(tag->buf, bufSize);
+              if (temp == NULL)
+                return XML_ERROR_NO_MEMORY;
+              tag->buf = temp;
+              tag->bufEnd = temp + bufSize;
+              toPtr = (XML_Char *)temp + convLen;
+            }
+          }
+        }
+        tag->name.str = (XML_Char *)tag->buf;
+        *toPtr = XML_T('\0');
+        result = storeAtts(parser, enc, s, &(tag->name), &(tag->bindings));
+        if (result)
+          return result;
+        if (startElementHandler)
+          startElementHandler(handlerArg, tag->name.str,
+                              (const XML_Char **)atts);
+        else if (defaultHandler)
+          reportDefault(parser, enc, s, next);
+        poolClear(&tempPool);
+        break;
+      }
+    case XML_TOK_EMPTY_ELEMENT_NO_ATTS:
+      /* fall through */
+    case XML_TOK_EMPTY_ELEMENT_WITH_ATTS:
+      {
+        const char *rawName = s + enc->minBytesPerChar;
+        enum XML_Error result;
+        BINDING *bindings = NULL;
+        XML_Bool noElmHandlers = XML_TRUE;
+        TAG_NAME name;
+        name.str = poolStoreString(&tempPool, enc, rawName,
+                                   rawName + XmlNameLength(enc, rawName));
+        if (!name.str)
+          return XML_ERROR_NO_MEMORY;
+        poolFinish(&tempPool);
+        result = storeAtts(parser, enc, s, &name, &bindings);
+        if (result)
+          return result;
+        poolFinish(&tempPool);
+        if (startElementHandler) {
+          startElementHandler(handlerArg, name.str, (const XML_Char **)atts);
+          noElmHandlers = XML_FALSE;
+        }
+        if (endElementHandler) {
+          if (startElementHandler)
+            *eventPP = *eventEndPP;
+          endElementHandler(handlerArg, name.str);
+          noElmHandlers = XML_FALSE;
+        }
+        if (noElmHandlers && defaultHandler)
+          reportDefault(parser, enc, s, next);
+        poolClear(&tempPool);
+        while (bindings) {
+          BINDING *b = bindings;
+          if (endNamespaceDeclHandler)
+            endNamespaceDeclHandler(handlerArg, b->prefix->name);
+          bindings = bindings->nextTagBinding;
+          b->nextTagBinding = freeBindingList;
+          freeBindingList = b;
+          b->prefix->binding = b->prevPrefixBinding;
+        }
+      }
+      if (tagLevel == 0)
+        return epilogProcessor(parser, next, end, nextPtr);
+      break;
+    case XML_TOK_END_TAG:
+      if (tagLevel == startTagLevel)
+        return XML_ERROR_ASYNC_ENTITY;
+      else {
+        int len;
+        const char *rawName;
+        TAG *tag = tagStack;
+        tagStack = tag->parent;
+        tag->parent = freeTagList;
+        freeTagList = tag;
+        rawName = s + enc->minBytesPerChar*2;
+        len = XmlNameLength(enc, rawName);
+        if (len != tag->rawNameLength
+            || memcmp(tag->rawName, rawName, len) != 0) {
+          *eventPP = rawName;
+          return XML_ERROR_TAG_MISMATCH;
+        }
+        --tagLevel;
+        if (endElementHandler) {
+          const XML_Char *localPart;
+          const XML_Char *prefix;
+          XML_Char *uri;
+          localPart = tag->name.localPart;
+          if (ns && localPart) {
+            /* localPart and prefix may have been overwritten in
+               tag->name.str, since this points to the binding->uri
+               buffer which gets re-used; so we have to add them again
+            */
+            uri = (XML_Char *)tag->name.str + tag->name.uriLen;
+            /* don't need to check for space - already done in storeAtts() */
+            while (*localPart) *uri++ = *localPart++;
+            prefix = (XML_Char *)tag->name.prefix;
+            if (ns_triplets && prefix) {
+              *uri++ = namespaceSeparator;
+              while (*prefix) *uri++ = *prefix++;
+             }
+            *uri = XML_T('\0');
+          }
+          endElementHandler(handlerArg, tag->name.str);
+        }
+        else if (defaultHandler)
+          reportDefault(parser, enc, s, next);
+        while (tag->bindings) {
+          BINDING *b = tag->bindings;
+          if (endNamespaceDeclHandler)
+            endNamespaceDeclHandler(handlerArg, b->prefix->name);
+          tag->bindings = tag->bindings->nextTagBinding;
+          b->nextTagBinding = freeBindingList;
+          freeBindingList = b;
+          b->prefix->binding = b->prevPrefixBinding;
+        }
+        if (tagLevel == 0)
+          return epilogProcessor(parser, next, end, nextPtr);
+      }
+      break;
+    case XML_TOK_CHAR_REF:
+      {
+        int n = XmlCharRefNumber(enc, s);
+        if (n < 0)
+          return XML_ERROR_BAD_CHAR_REF;
+        if (characterDataHandler) {
+          XML_Char buf[XML_ENCODE_MAX];
+          characterDataHandler(handlerArg, buf, XmlEncode(n, (ICHAR *)buf));
+        }
+        else if (defaultHandler)
+          reportDefault(parser, enc, s, next);
+      }
+      break;
+    case XML_TOK_XML_DECL:
+      return XML_ERROR_MISPLACED_XML_PI;
+    case XML_TOK_DATA_NEWLINE:
+      if (characterDataHandler) {
+        XML_Char c = 0xA;
+        characterDataHandler(handlerArg, &c, 1);
+      }
+      else if (defaultHandler)
+        reportDefault(parser, enc, s, next);
+      break;
+    case XML_TOK_CDATA_SECT_OPEN:
+      {
+        enum XML_Error result;
+        if (startCdataSectionHandler)
+          startCdataSectionHandler(handlerArg);
+#if 0
+        /* Suppose you doing a transformation on a document that involves
+           changing only the character data.  You set up a defaultHandler
+           and a characterDataHandler.  The defaultHandler simply copies
+           characters through.  The characterDataHandler does the
+           transformation and writes the characters out escaping them as
+           necessary.  This case will fail to work if we leave out the
+           following two lines (because & and < inside CDATA sections will
+           be incorrectly escaped).
+
+           However, now we have a start/endCdataSectionHandler, so it seems
+           easier to let the user deal with this.
+        */
+        else if (characterDataHandler)
+          characterDataHandler(handlerArg, dataBuf, 0);
+#endif
+        else if (defaultHandler)
+          reportDefault(parser, enc, s, next);
+        result = doCdataSection(parser, enc, &next, end, nextPtr);
+        if (!next) {
+          processor = cdataSectionProcessor;
+          return result;
+        }
+      }
+      break;
+    case XML_TOK_TRAILING_RSQB:
+      if (nextPtr) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      if (characterDataHandler) {
+        if (MUST_CONVERT(enc, s)) {
+          ICHAR *dataPtr = (ICHAR *)dataBuf;
+          XmlConvert(enc, &s, end, &dataPtr, (ICHAR *)dataBufEnd);
+          characterDataHandler(handlerArg, dataBuf,
+                               dataPtr - (ICHAR *)dataBuf);
+        }
+        else
+          characterDataHandler(handlerArg,
+                               (XML_Char *)s,
+                               (XML_Char *)end - (XML_Char *)s);
+      }
+      else if (defaultHandler)
+        reportDefault(parser, enc, s, end);
+      if (startTagLevel == 0) {
+        *eventPP = end;
+        return XML_ERROR_NO_ELEMENTS;
+      }
+      if (tagLevel != startTagLevel) {
+        *eventPP = end;
+        return XML_ERROR_ASYNC_ENTITY;
+      }
+      return XML_ERROR_NONE;
+    case XML_TOK_DATA_CHARS:
+      if (characterDataHandler) {
+        if (MUST_CONVERT(enc, s)) {
+          for (;;) {
+            ICHAR *dataPtr = (ICHAR *)dataBuf;
+            XmlConvert(enc, &s, next, &dataPtr, (ICHAR *)dataBufEnd);
+            *eventEndPP = s;
+            characterDataHandler(handlerArg, dataBuf,
+                                 dataPtr - (ICHAR *)dataBuf);
+            if (s == next)
+              break;
+            *eventPP = s;
+          }
+        }
+        else
+          characterDataHandler(handlerArg,
+                               (XML_Char *)s,
+                               (XML_Char *)next - (XML_Char *)s);
+      }
+      else if (defaultHandler)
+        reportDefault(parser, enc, s, next);
+      break;
+    case XML_TOK_PI:
+      if (!reportProcessingInstruction(parser, enc, s, next))
+        return XML_ERROR_NO_MEMORY;
+      break;
+    case XML_TOK_COMMENT:
+      if (!reportComment(parser, enc, s, next))
+        return XML_ERROR_NO_MEMORY;
+      break;
+    default:
+      if (defaultHandler)
+        reportDefault(parser, enc, s, next);
+      break;
+    }
+    *eventPP = s = next;
+  }
+  /* not reached */
+}
+
+/* Precondition: all arguments must be non-NULL;
+   Purpose:
+   - normalize attributes
+   - check attributes for well-formedness
+   - generate namespace aware attribute names (URI, prefix)
+   - build list of attributes for startElementHandler
+   - default attributes
+   - process namespace declarations (check and report them)
+   - generate namespace aware element name (URI, prefix)
+*/
+static enum XML_Error
+storeAtts(XML_Parser parser, const ENCODING *enc,
+          const char *attStr, TAG_NAME *tagNamePtr,
+          BINDING **bindingsPtr)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  ELEMENT_TYPE *elementType = NULL;
+  int nDefaultAtts = 0;
+  const XML_Char **appAtts;   /* the attribute list for the application */
+  int attIndex = 0;
+  int prefixLen;
+  int i;
+  int n;
+  XML_Char *uri;
+  int nPrefixes = 0;
+  BINDING *binding;
+  const XML_Char *localPart;
+
+  /* lookup the element type name */
+  elementType = (ELEMENT_TYPE *)lookup(&dtd->elementTypes, tagNamePtr->str,0);
+  if (!elementType) {
+    const XML_Char *name = poolCopyString(&dtd->pool, tagNamePtr->str);
+    if (!name)
+      return XML_ERROR_NO_MEMORY;
+    elementType = (ELEMENT_TYPE *)lookup(&dtd->elementTypes, name,
+                                         sizeof(ELEMENT_TYPE));
+    if (!elementType)
+      return XML_ERROR_NO_MEMORY;
+    if (ns && !setElementTypePrefix(parser, elementType))
+      return XML_ERROR_NO_MEMORY;
+  }
+  nDefaultAtts = elementType->nDefaultAtts;
+
+  /* get the attributes from the tokenizer */
+  n = XmlGetAttributes(enc, attStr, attsSize, atts);
+  if (n + nDefaultAtts > attsSize) {
+    int oldAttsSize = attsSize;
+    ATTRIBUTE *temp;
+    attsSize = n + nDefaultAtts + INIT_ATTS_SIZE;
+    temp = (ATTRIBUTE *)REALLOC((void *)atts, attsSize * sizeof(ATTRIBUTE));
+    if (temp == NULL)
+      return XML_ERROR_NO_MEMORY;
+    atts = temp;
+    if (n > oldAttsSize)
+      XmlGetAttributes(enc, attStr, n, atts);
+  }
+
+  appAtts = (const XML_Char **)atts;
+  for (i = 0; i < n; i++) {
+    /* add the name and value to the attribute list */
+    ATTRIBUTE_ID *attId = getAttributeId(parser, enc, atts[i].name,
+                                         atts[i].name
+                                         + XmlNameLength(enc, atts[i].name));
+    if (!attId)
+      return XML_ERROR_NO_MEMORY;
+    /* detect duplicate attributes */
+    if ((attId->name)[-1]) {
+      if (enc == encoding)
+        eventPtr = atts[i].name;
+      return XML_ERROR_DUPLICATE_ATTRIBUTE;
+    }
+    (attId->name)[-1] = 1;
+    appAtts[attIndex++] = attId->name;
+    if (!atts[i].normalized) {
+      enum XML_Error result;
+      XML_Bool isCdata = XML_TRUE;
+
+      /* figure out whether declared as other than CDATA */
+      if (attId->maybeTokenized) {
+        int j;
+        for (j = 0; j < nDefaultAtts; j++) {
+          if (attId == elementType->defaultAtts[j].id) {
+            isCdata = elementType->defaultAtts[j].isCdata;
+            break;
+          }
+        }
+      }
+
+      /* normalize the attribute value */
+      result = storeAttributeValue(parser, enc, isCdata,
+                                   atts[i].valuePtr, atts[i].valueEnd,
+                                   &tempPool);
+      if (result)
+        return result;
+      appAtts[attIndex] = poolStart(&tempPool);
+      poolFinish(&tempPool);
+    }
+    else {
+      /* the value did not need normalizing */
+      appAtts[attIndex] = poolStoreString(&tempPool, enc, atts[i].valuePtr,
+                                          atts[i].valueEnd);
+      if (appAtts[attIndex] == 0)
+        return XML_ERROR_NO_MEMORY;
+      poolFinish(&tempPool);
+    }
+    /* handle prefixed attribute names */
+    if (attId->prefix) {
+      if (attId->xmlns) {
+        /* deal with namespace declarations here */
+        enum XML_Error result = addBinding(parser, attId->prefix, attId,
+                                           appAtts[attIndex], bindingsPtr);
+        if (result)
+          return result;
+        --attIndex;
+      }
+      else {
+        /* deal with other prefixed names later */
+        attIndex++;
+        nPrefixes++;
+        (attId->name)[-1] = 2;
+      }
+    }
+    else
+      attIndex++;
+  }
+
+  /* set-up for XML_GetSpecifiedAttributeCount and XML_GetIdAttributeIndex */
+  nSpecifiedAtts = attIndex;
+  if (elementType->idAtt && (elementType->idAtt->name)[-1]) {
+    for (i = 0; i < attIndex; i += 2)
+      if (appAtts[i] == elementType->idAtt->name) {
+        idAttIndex = i;
+        break;
+      }
+  }
+  else
+    idAttIndex = -1;
+
+  /* do attribute defaulting */
+  for (i = 0; i < nDefaultAtts; i++) {
+    const DEFAULT_ATTRIBUTE *da = elementType->defaultAtts + i;
+    if (!(da->id->name)[-1] && da->value) {
+      if (da->id->prefix) {
+        if (da->id->xmlns) {
+          enum XML_Error result = addBinding(parser, da->id->prefix, da->id,
+                                             da->value, bindingsPtr);
+          if (result)
+            return result;
+        }
+        else {
+          (da->id->name)[-1] = 2;
+          nPrefixes++;
+          appAtts[attIndex++] = da->id->name;
+          appAtts[attIndex++] = da->value;
+        }
+      }
+      else {
+        (da->id->name)[-1] = 1;
+        appAtts[attIndex++] = da->id->name;
+        appAtts[attIndex++] = da->value;
+      }
+    }
+  }
+  appAtts[attIndex] = 0;
+
+  i = 0;
+  if (nPrefixes) {
+    /* expand prefixed attribute names */
+    for (; i < attIndex; i += 2) {
+      if (appAtts[i][-1] == 2) {
+        ATTRIBUTE_ID *id;
+        ((XML_Char *)(appAtts[i]))[-1] = 0;
+        id = (ATTRIBUTE_ID *)lookup(&dtd->attributeIds, appAtts[i], 0);
+        if (id->prefix->binding) {
+          int j;
+          const BINDING *b = id->prefix->binding;
+          const XML_Char *s = appAtts[i];
+          for (j = 0; j < b->uriLen; j++) {
+            if (!poolAppendChar(&tempPool, b->uri[j]))
+              return XML_ERROR_NO_MEMORY;
+          }
+          while (*s++ != XML_T(':'))
+            ;
+          do {
+            if (!poolAppendChar(&tempPool, *s))
+              return XML_ERROR_NO_MEMORY;
+          } while (*s++);
+          if (ns_triplets) {
+            tempPool.ptr[-1] = namespaceSeparator;
+            s = b->prefix->name;
+            do {
+              if (!poolAppendChar(&tempPool, *s))
+                return XML_ERROR_NO_MEMORY;
+            } while (*s++);
+          }
+
+          appAtts[i] = poolStart(&tempPool);
+          poolFinish(&tempPool);
+        }
+        if (!--nPrefixes)
+          break;
+      }
+      else
+        ((XML_Char *)(appAtts[i]))[-1] = 0;
+    }
+  }
+  /* clear the flags that say whether attributes were specified */
+  for (; i < attIndex; i += 2)
+    ((XML_Char *)(appAtts[i]))[-1] = 0;
+  for (binding = *bindingsPtr; binding; binding = binding->nextTagBinding)
+    binding->attId->name[-1] = 0;
+
+  /* expand the element type name */
+  if (elementType->prefix) {
+    binding = elementType->prefix->binding;
+    if (!binding)
+      return XML_ERROR_NONE;
+    localPart = tagNamePtr->str;
+    while (*localPart++ != XML_T(':'))
+      ;
+  }
+  else if (dtd->defaultPrefix.binding) {
+    binding = dtd->defaultPrefix.binding;
+    localPart = tagNamePtr->str;
+  }
+  else
+    return XML_ERROR_NONE;
+  prefixLen = 0;
+  if (ns && ns_triplets && binding->prefix->name) {
+    for (; binding->prefix->name[prefixLen++];)
+      ;
+  }
+  tagNamePtr->localPart = localPart;
+  tagNamePtr->uriLen = binding->uriLen;
+  tagNamePtr->prefix = binding->prefix->name;
+  tagNamePtr->prefixLen = prefixLen;
+  for (i = 0; localPart[i++];)
+    ;
+  n = i + binding->uriLen + prefixLen;
+  if (n > binding->uriAlloc) {
+    TAG *p;
+    uri = (XML_Char *)MALLOC((n + EXPAND_SPARE) * sizeof(XML_Char));
+    if (!uri)
+      return XML_ERROR_NO_MEMORY;
+    binding->uriAlloc = n + EXPAND_SPARE;
+    memcpy(uri, binding->uri, binding->uriLen * sizeof(XML_Char));
+    for (p = tagStack; p; p = p->parent)
+      if (p->name.str == binding->uri)
+        p->name.str = uri;
+    FREE(binding->uri);
+    binding->uri = uri;
+  }
+  uri = binding->uri + binding->uriLen;
+  memcpy(uri, localPart, i * sizeof(XML_Char));
+  if (prefixLen) {
+        uri = uri + (i - 1);
+    if (namespaceSeparator) { *(uri) = namespaceSeparator; }
+    memcpy(uri + 1, binding->prefix->name, prefixLen * sizeof(XML_Char));
+  }
+  tagNamePtr->str = binding->uri;
+  return XML_ERROR_NONE;
+}
+
+/* addBinding() overwrites the value of prefix->binding without checking.
+   Therefore one must keep track of the old value outside of addBinding().
+*/
+static enum XML_Error
+addBinding(XML_Parser parser, PREFIX *prefix, const ATTRIBUTE_ID *attId,
+           const XML_Char *uri, BINDING **bindingsPtr)
+{
+  BINDING *b;
+  int len;
+
+  /* empty string is only valid when there is no prefix per XML NS 1.0 */
+  if (*uri == XML_T('\0') && prefix->name)
+    return XML_ERROR_SYNTAX;
+
+  for (len = 0; uri[len]; len++)
+    ;
+  if (namespaceSeparator)
+    len++;
+  if (freeBindingList) {
+    b = freeBindingList;
+    if (len > b->uriAlloc) {
+      XML_Char *temp = (XML_Char *)REALLOC(b->uri,
+                          sizeof(XML_Char) * (len + EXPAND_SPARE));
+      if (temp == NULL)
+        return XML_ERROR_NO_MEMORY;
+      b->uri = temp;
+      b->uriAlloc = len + EXPAND_SPARE;
+    }
+    freeBindingList = b->nextTagBinding;
+  }
+  else {
+    b = (BINDING *)MALLOC(sizeof(BINDING));
+    if (!b)
+      return XML_ERROR_NO_MEMORY;
+    b->uri = (XML_Char *)MALLOC(sizeof(XML_Char) * (len + EXPAND_SPARE));
+    if (!b->uri) {
+      FREE(b);
+      return XML_ERROR_NO_MEMORY;
+    }
+    b->uriAlloc = len + EXPAND_SPARE;
+  }
+  b->uriLen = len;
+  memcpy(b->uri, uri, len * sizeof(XML_Char));
+  if (namespaceSeparator)
+    b->uri[len - 1] = namespaceSeparator;
+  b->prefix = prefix;
+  b->attId = attId;
+  b->prevPrefixBinding = prefix->binding;
+  if (*uri == XML_T('\0') && prefix == &_dtd->defaultPrefix)
+    prefix->binding = NULL;
+  else
+    prefix->binding = b;
+  b->nextTagBinding = *bindingsPtr;
+  *bindingsPtr = b;
+  if (startNamespaceDeclHandler)
+    startNamespaceDeclHandler(handlerArg, prefix->name,
+                              prefix->binding ? uri : 0);
+  return XML_ERROR_NONE;
+}
+
+/* The idea here is to avoid using stack for each CDATA section when
+   the whole file is parsed with one call.
+*/
+static enum XML_Error PTRCALL
+cdataSectionProcessor(XML_Parser parser,
+                      const char *start,
+                      const char *end,
+                      const char **endPtr)
+{
+  enum XML_Error result = doCdataSection(parser, encoding, &start,
+                                         end, endPtr);
+  if (start) {
+    if (parentParser) {  /* we are parsing an external entity */
+      processor = externalEntityContentProcessor;
+      return externalEntityContentProcessor(parser, start, end, endPtr);
+    }
+    else {
+      processor = contentProcessor;
+      return contentProcessor(parser, start, end, endPtr);
+    }
+  }
+  return result;
+}
+
+/* startPtr gets set to non-null is the section is closed, and to null if
+   the section is not yet closed.
+*/
+static enum XML_Error
+doCdataSection(XML_Parser parser,
+               const ENCODING *enc,
+               const char **startPtr,
+               const char *end,
+               const char **nextPtr)
+{
+  const char *s = *startPtr;
+  const char **eventPP;
+  const char **eventEndPP;
+  if (enc == encoding) {
+    eventPP = &eventPtr;
+    *eventPP = s;
+    eventEndPP = &eventEndPtr;
+  }
+  else {
+    eventPP = &(openInternalEntities->internalEventPtr);
+    eventEndPP = &(openInternalEntities->internalEventEndPtr);
+  }
+  *eventPP = s;
+  *startPtr = NULL;
+  for (;;) {
+    const char *next;
+    int tok = XmlCdataSectionTok(enc, s, end, &next);
+    *eventEndPP = next;
+    switch (tok) {
+    case XML_TOK_CDATA_SECT_CLOSE:
+      if (endCdataSectionHandler)
+        endCdataSectionHandler(handlerArg);
+#if 0
+      /* see comment under XML_TOK_CDATA_SECT_OPEN */
+      else if (characterDataHandler)
+        characterDataHandler(handlerArg, dataBuf, 0);
+#endif
+      else if (defaultHandler)
+        reportDefault(parser, enc, s, next);
+      *startPtr = next;
+      return XML_ERROR_NONE;
+    case XML_TOK_DATA_NEWLINE:
+      if (characterDataHandler) {
+        XML_Char c = 0xA;
+        characterDataHandler(handlerArg, &c, 1);
+      }
+      else if (defaultHandler)
+        reportDefault(parser, enc, s, next);
+      break;
+    case XML_TOK_DATA_CHARS:
+      if (characterDataHandler) {
+        if (MUST_CONVERT(enc, s)) {
+          for (;;) {
+            ICHAR *dataPtr = (ICHAR *)dataBuf;
+            XmlConvert(enc, &s, next, &dataPtr, (ICHAR *)dataBufEnd);
+            *eventEndPP = next;
+            characterDataHandler(handlerArg, dataBuf,
+                                 dataPtr - (ICHAR *)dataBuf);
+            if (s == next)
+              break;
+            *eventPP = s;
+          }
+        }
+        else
+          characterDataHandler(handlerArg,
+                               (XML_Char *)s,
+                               (XML_Char *)next - (XML_Char *)s);
+      }
+      else if (defaultHandler)
+        reportDefault(parser, enc, s, next);
+      break;
+    case XML_TOK_INVALID:
+      *eventPP = next;
+      return XML_ERROR_INVALID_TOKEN;
+    case XML_TOK_PARTIAL_CHAR:
+      if (nextPtr) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      return XML_ERROR_PARTIAL_CHAR;
+    case XML_TOK_PARTIAL:
+    case XML_TOK_NONE:
+      if (nextPtr) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      return XML_ERROR_UNCLOSED_CDATA_SECTION;
+    default:
+      *eventPP = next;
+      return XML_ERROR_UNEXPECTED_STATE;
+    }
+    *eventPP = s = next;
+  }
+  /* not reached */
+}
+
+#ifdef XML_DTD
+
+/* The idea here is to avoid using stack for each IGNORE section when
+   the whole file is parsed with one call.
+*/
+static enum XML_Error PTRCALL
+ignoreSectionProcessor(XML_Parser parser,
+                       const char *start,
+                       const char *end,
+                       const char **endPtr)
+{
+  enum XML_Error result = doIgnoreSection(parser, encoding, &start,
+                                          end, endPtr);
+  if (start) {
+    processor = prologProcessor;
+    return prologProcessor(parser, start, end, endPtr);
+  }
+  return result;
+}
+
+/* startPtr gets set to non-null is the section is closed, and to null
+   if the section is not yet closed.
+*/
+static enum XML_Error
+doIgnoreSection(XML_Parser parser,
+                const ENCODING *enc,
+                const char **startPtr,
+                const char *end,
+                const char **nextPtr)
+{
+  const char *next;
+  int tok;
+  const char *s = *startPtr;
+  const char **eventPP;
+  const char **eventEndPP;
+  if (enc == encoding) {
+    eventPP = &eventPtr;
+    *eventPP = s;
+    eventEndPP = &eventEndPtr;
+  }
+  else {
+    eventPP = &(openInternalEntities->internalEventPtr);
+    eventEndPP = &(openInternalEntities->internalEventEndPtr);
+  }
+  *eventPP = s;
+  *startPtr = NULL;
+  tok = XmlIgnoreSectionTok(enc, s, end, &next);
+  *eventEndPP = next;
+  switch (tok) {
+  case XML_TOK_IGNORE_SECT:
+    if (defaultHandler)
+      reportDefault(parser, enc, s, next);
+    *startPtr = next;
+    return XML_ERROR_NONE;
+  case XML_TOK_INVALID:
+    *eventPP = next;
+    return XML_ERROR_INVALID_TOKEN;
+  case XML_TOK_PARTIAL_CHAR:
+    if (nextPtr) {
+      *nextPtr = s;
+      return XML_ERROR_NONE;
+    }
+    return XML_ERROR_PARTIAL_CHAR;
+  case XML_TOK_PARTIAL:
+  case XML_TOK_NONE:
+    if (nextPtr) {
+      *nextPtr = s;
+      return XML_ERROR_NONE;
+    }
+    return XML_ERROR_SYNTAX; /* XML_ERROR_UNCLOSED_IGNORE_SECTION */
+  default:
+    *eventPP = next;
+    return XML_ERROR_UNEXPECTED_STATE;
+  }
+  /* not reached */
+}
+
+#endif /* XML_DTD */
+
+static enum XML_Error
+initializeEncoding(XML_Parser parser)
+{
+  const char *s;
+#ifdef XML_UNICODE
+  char encodingBuf[128];
+  if (!protocolEncodingName)
+    s = NULL;
+  else {
+    int i;
+    for (i = 0; protocolEncodingName[i]; i++) {
+      if (i == sizeof(encodingBuf) - 1
+          || (protocolEncodingName[i] & ~0x7f) != 0) {
+        encodingBuf[0] = '\0';
+        break;
+      }
+      encodingBuf[i] = (char)protocolEncodingName[i];
+    }
+    encodingBuf[i] = '\0';
+    s = encodingBuf;
+  }
+#else
+  s = protocolEncodingName;
+#endif
+  if ((ns ? XmlInitEncodingNS : XmlInitEncoding)(&initEncoding, &encoding, s))
+    return XML_ERROR_NONE;
+  return handleUnknownEncoding(parser, protocolEncodingName);
+}
+
+static enum XML_Error
+processXmlDecl(XML_Parser parser, int isGeneralTextEntity,
+               const char *s, const char *next)
+{
+  const char *encodingName = NULL;
+  const XML_Char *storedEncName = NULL;
+  const ENCODING *newEncoding = NULL;
+  const char *version = NULL;
+  const char *versionend;
+  const XML_Char *storedversion = NULL;
+  int standalone = -1;
+  if (!(ns
+        ? XmlParseXmlDeclNS
+        : XmlParseXmlDecl)(isGeneralTextEntity,
+                           encoding,
+                           s,
+                           next,
+                           &eventPtr,
+                           &version,
+                           &versionend,
+                           &encodingName,
+                           &newEncoding,
+                           &standalone))
+    return XML_ERROR_SYNTAX;
+  if (!isGeneralTextEntity && standalone == 1) {
+    _dtd->standalone = XML_TRUE;
+#ifdef XML_DTD
+    if (paramEntityParsing == XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE)
+      paramEntityParsing = XML_PARAM_ENTITY_PARSING_NEVER;
+#endif /* XML_DTD */
+  }
+  if (xmlDeclHandler) {
+    if (encodingName != NULL) {
+      storedEncName = poolStoreString(&temp2Pool,
+                                      encoding,
+                                      encodingName,
+                                      encodingName
+                                      + XmlNameLength(encoding, encodingName));
+      if (!storedEncName)
+              return XML_ERROR_NO_MEMORY;
+      poolFinish(&temp2Pool);
+    }
+    if (version) {
+      storedversion = poolStoreString(&temp2Pool,
+                                      encoding,
+                                      version,
+                                      versionend - encoding->minBytesPerChar);
+      if (!storedversion)
+        return XML_ERROR_NO_MEMORY;
+    }
+    xmlDeclHandler(handlerArg, storedversion, storedEncName, standalone);
+  }
+  else if (defaultHandler)
+    reportDefault(parser, encoding, s, next);
+  if (protocolEncodingName == NULL) {
+    if (newEncoding) {
+      if (newEncoding->minBytesPerChar != encoding->minBytesPerChar) {
+        eventPtr = encodingName;
+        return XML_ERROR_INCORRECT_ENCODING;
+      }
+      encoding = newEncoding;
+    }
+    else if (encodingName) {
+      enum XML_Error result;
+      if (!storedEncName) {
+        storedEncName = poolStoreString(
+          &temp2Pool, encoding, encodingName,
+          encodingName + XmlNameLength(encoding, encodingName));
+        if (!storedEncName)
+          return XML_ERROR_NO_MEMORY;
+      }
+      result = handleUnknownEncoding(parser, storedEncName);
+      poolClear(&temp2Pool);
+      if (result == XML_ERROR_UNKNOWN_ENCODING)
+        eventPtr = encodingName;
+      return result;
+    }
+  }
+
+  if (storedEncName || storedversion)
+    poolClear(&temp2Pool);
+
+  return XML_ERROR_NONE;
+}
+
+static enum XML_Error
+handleUnknownEncoding(XML_Parser parser, const XML_Char *encodingName)
+{
+  if (unknownEncodingHandler) {
+    XML_Encoding info;
+    int i;
+    for (i = 0; i < 256; i++)
+      info.map[i] = -1;
+    info.convert = NULL;
+    info.data = NULL;
+    info.release = NULL;
+    if (unknownEncodingHandler(unknownEncodingHandlerData, encodingName,
+                               &info)) {
+      ENCODING *enc;
+      unknownEncodingMem = MALLOC(XmlSizeOfUnknownEncoding());
+      if (!unknownEncodingMem) {
+        if (info.release)
+          info.release(info.data);
+        return XML_ERROR_NO_MEMORY;
+      }
+      enc = (ns
+             ? XmlInitUnknownEncodingNS
+             : XmlInitUnknownEncoding)(unknownEncodingMem,
+                                       info.map,
+                                       info.convert,
+                                       info.data);
+      if (enc) {
+        unknownEncodingData = info.data;
+        unknownEncodingRelease = info.release;
+        encoding = enc;
+        return XML_ERROR_NONE;
+      }
+    }
+    if (info.release != NULL)
+      info.release(info.data);
+  }
+  return XML_ERROR_UNKNOWN_ENCODING;
+}
+
+static enum XML_Error PTRCALL
+prologInitProcessor(XML_Parser parser,
+                    const char *s,
+                    const char *end,
+                    const char **nextPtr)
+{
+  enum XML_Error result = initializeEncoding(parser);
+  if (result != XML_ERROR_NONE)
+    return result;
+  processor = prologProcessor;
+  return prologProcessor(parser, s, end, nextPtr);
+}
+
+#ifdef XML_DTD
+
+static enum XML_Error PTRCALL
+externalParEntInitProcessor(XML_Parser parser,
+                            const char *s,
+                            const char *end,
+                            const char **nextPtr)
+{
+  enum XML_Error result = initializeEncoding(parser);
+  if (result != XML_ERROR_NONE)
+    return result;
+
+  /* we know now that XML_Parse(Buffer) has been called,
+     so we consider the external parameter entity read */
+  _dtd->paramEntityRead = XML_TRUE;
+
+  if (prologState.inEntityValue) {
+    processor = entityValueInitProcessor;
+    return entityValueInitProcessor(parser, s, end, nextPtr);
+  }
+  else {
+    processor = externalParEntProcessor;
+    return externalParEntProcessor(parser, s, end, nextPtr);
+  }
+}
+
+static enum XML_Error PTRCALL
+entityValueInitProcessor(XML_Parser parser,
+                         const char *s,
+                         const char *end,
+                         const char **nextPtr)
+{
+  const char *start = s;
+  const char *next = s;
+  int tok;
+
+  for (;;) {
+    tok = XmlPrologTok(encoding, start, end, &next);
+    if (tok <= 0) {
+      if (nextPtr != 0 && tok != XML_TOK_INVALID) {
+              *nextPtr = s;
+              return XML_ERROR_NONE;
+      }
+      switch (tok) {
+      case XML_TOK_INVALID:
+              return XML_ERROR_INVALID_TOKEN;
+      case XML_TOK_PARTIAL:
+              return XML_ERROR_UNCLOSED_TOKEN;
+      case XML_TOK_PARTIAL_CHAR:
+              return XML_ERROR_PARTIAL_CHAR;
+      case XML_TOK_NONE:   /* start == end */
+      default:
+        break;
+      }
+      return storeEntityValue(parser, encoding, s, end);
+    }
+    else if (tok == XML_TOK_XML_DECL) {
+      enum XML_Error result = processXmlDecl(parser, 0, start, next);
+            if (result != XML_ERROR_NONE)
+              return result;
+      if (nextPtr) *nextPtr = next;
+      /* stop scanning for text declaration - we found one */
+      processor = entityValueProcessor;
+      return entityValueProcessor(parser, next, end, nextPtr);
+    }
+    /* If we are at the end of the buffer, this would cause XmlPrologTok to
+       return XML_TOK_NONE on the next call, which would then cause the
+       function to exit with *nextPtr set to s - that is what we want for other
+       tokens, but not for the BOM - we would rather like to skip it;
+       then, when this routine is entered the next time, XmlPrologTok will
+       return XML_TOK_INVALID, since the BOM is still in the buffer
+    */
+    else if (tok == XML_TOK_BOM && next == end && nextPtr) {
+      *nextPtr = next;
+      return XML_ERROR_NONE;
+    }
+    start = next;
+  }
+}
+
+static enum XML_Error PTRCALL
+externalParEntProcessor(XML_Parser parser,
+                        const char *s,
+                        const char *end,
+                        const char **nextPtr)
+{
+  const char *start = s;
+  const char *next = s;
+  int tok;
+
+  tok = XmlPrologTok(encoding, start, end, &next);
+  if (tok <= 0) {
+    if (nextPtr != 0 && tok != XML_TOK_INVALID) {
+      *nextPtr = s;
+      return XML_ERROR_NONE;
+    }
+    switch (tok) {
+    case XML_TOK_INVALID:
+      return XML_ERROR_INVALID_TOKEN;
+    case XML_TOK_PARTIAL:
+      return XML_ERROR_UNCLOSED_TOKEN;
+    case XML_TOK_PARTIAL_CHAR:
+      return XML_ERROR_PARTIAL_CHAR;
+    case XML_TOK_NONE:   /* start == end */
+    default:
+      break;
+    }
+  }
+  /* This would cause the next stage, i.e. doProlog to be passed XML_TOK_BOM.
+     However, when parsing an external subset, doProlog will not accept a BOM
+     as valid, and report a syntax error, so we have to skip the BOM
+  */
+  else if (tok == XML_TOK_BOM) {
+    s = next;
+    tok = XmlPrologTok(encoding, s, end, &next);
+  }
+
+  processor = prologProcessor;
+  return doProlog(parser, encoding, s, end, tok, next, nextPtr);
+}
+
+static enum XML_Error PTRCALL
+entityValueProcessor(XML_Parser parser,
+                     const char *s,
+                     const char *end,
+                     const char **nextPtr)
+{
+  const char *start = s;
+  const char *next = s;
+  const ENCODING *enc = encoding;
+  int tok;
+
+  for (;;) {
+    tok = XmlPrologTok(enc, start, end, &next);
+    if (tok <= 0) {
+      if (nextPtr != 0 && tok != XML_TOK_INVALID) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      switch (tok) {
+      case XML_TOK_INVALID:
+              return XML_ERROR_INVALID_TOKEN;
+      case XML_TOK_PARTIAL:
+              return XML_ERROR_UNCLOSED_TOKEN;
+      case XML_TOK_PARTIAL_CHAR:
+              return XML_ERROR_PARTIAL_CHAR;
+      case XML_TOK_NONE:   /* start == end */
+      default:
+        break;
+      }
+      return storeEntityValue(parser, enc, s, end);
+    }
+    start = next;
+  }
+}
+
+#endif /* XML_DTD */
+
+static enum XML_Error PTRCALL
+prologProcessor(XML_Parser parser,
+                const char *s,
+                const char *end,
+                const char **nextPtr)
+{
+  const char *next = s;
+  int tok = XmlPrologTok(encoding, s, end, &next);
+  return doProlog(parser, encoding, s, end, tok, next, nextPtr);
+}
+
+static enum XML_Error
+doProlog(XML_Parser parser,
+         const ENCODING *enc,
+         const char *s,
+         const char *end,
+         int tok,
+         const char *next,
+         const char **nextPtr)
+{
+#ifdef XML_DTD
+  static const XML_Char externalSubsetName[] = { '#' , '\0' };
+#endif /* XML_DTD */
+  static const XML_Char atypeCDATA[] = { 'C', 'D', 'A', 'T', 'A', '\0' };
+  static const XML_Char atypeID[] = { 'I', 'D', '\0' };
+  static const XML_Char atypeIDREF[] = { 'I', 'D', 'R', 'E', 'F', '\0' };
+  static const XML_Char atypeIDREFS[] = { 'I', 'D', 'R', 'E', 'F', 'S', '\0' };
+  static const XML_Char atypeENTITY[] = { 'E', 'N', 'T', 'I', 'T', 'Y', '\0' };
+  static const XML_Char atypeENTITIES[] =
+      { 'E', 'N', 'T', 'I', 'T', 'I', 'E', 'S', '\0' };
+  static const XML_Char atypeNMTOKEN[] = {
+      'N', 'M', 'T', 'O', 'K', 'E', 'N', '\0' };
+  static const XML_Char atypeNMTOKENS[] = {
+      'N', 'M', 'T', 'O', 'K', 'E', 'N', 'S', '\0' };
+  static const XML_Char notationPrefix[] = {
+      'N', 'O', 'T', 'A', 'T', 'I', 'O', 'N', '(', '\0' };
+  static const XML_Char enumValueSep[] = { '|', '\0' };
+  static const XML_Char enumValueStart[] = { '(', '\0' };
+
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+
+  const char **eventPP;
+  const char **eventEndPP;
+  enum XML_Content_Quant quant;
+
+  if (enc == encoding) {
+    eventPP = &eventPtr;
+    eventEndPP = &eventEndPtr;
+  }
+  else {
+    eventPP = &(openInternalEntities->internalEventPtr);
+    eventEndPP = &(openInternalEntities->internalEventEndPtr);
+  }
+  for (;;) {
+    int role;
+    XML_Bool handleDefault = XML_TRUE;
+    *eventPP = s;
+    *eventEndPP = next;
+    if (tok <= 0) {
+      if (nextPtr != 0 && tok != XML_TOK_INVALID) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      switch (tok) {
+      case XML_TOK_INVALID:
+        *eventPP = next;
+        return XML_ERROR_INVALID_TOKEN;
+      case XML_TOK_PARTIAL:
+        return XML_ERROR_UNCLOSED_TOKEN;
+      case XML_TOK_PARTIAL_CHAR:
+        return XML_ERROR_PARTIAL_CHAR;
+      case XML_TOK_NONE:
+#ifdef XML_DTD
+        if (enc != encoding)
+          return XML_ERROR_NONE;
+        if (isParamEntity) {
+          if (XmlTokenRole(&prologState, XML_TOK_NONE, end, end, enc)
+              == XML_ROLE_ERROR)
+            return XML_ERROR_SYNTAX;
+          return XML_ERROR_NONE;
+        }
+#endif /* XML_DTD */
+        return XML_ERROR_NO_ELEMENTS;
+      default:
+        tok = -tok;
+        next = end;
+        break;
+      }
+    }
+    role = XmlTokenRole(&prologState, tok, s, next, enc);
+    switch (role) {
+    case XML_ROLE_XML_DECL:
+      {
+        enum XML_Error result = processXmlDecl(parser, 0, s, next);
+        if (result != XML_ERROR_NONE)
+          return result;
+        enc = encoding;
+        handleDefault = XML_FALSE;
+      }
+      break;
+    case XML_ROLE_DOCTYPE_NAME:
+      if (startDoctypeDeclHandler) {
+        doctypeName = poolStoreString(&tempPool, enc, s, next);
+        if (!doctypeName)
+          return XML_ERROR_NO_MEMORY;
+        poolFinish(&tempPool);
+        doctypePubid = NULL;
+        handleDefault = XML_FALSE;
+      }
+      doctypeSysid = NULL; /* always initialize to NULL */
+      break;
+    case XML_ROLE_DOCTYPE_INTERNAL_SUBSET:
+      if (startDoctypeDeclHandler) {
+        startDoctypeDeclHandler(handlerArg, doctypeName, doctypeSysid,
+                                doctypePubid, 1);
+        doctypeName = NULL;
+        poolClear(&tempPool);
+        handleDefault = XML_FALSE;
+      }
+      break;
+#ifdef XML_DTD
+    case XML_ROLE_TEXT_DECL:
+      {
+        enum XML_Error result = processXmlDecl(parser, 1, s, next);
+        if (result != XML_ERROR_NONE)
+          return result;
+        enc = encoding;
+        handleDefault = XML_FALSE;
+      }
+      break;
+#endif /* XML_DTD */
+    case XML_ROLE_DOCTYPE_PUBLIC_ID:
+#ifdef XML_DTD
+      useForeignDTD = XML_FALSE;
+#endif /* XML_DTD */
+      dtd->hasParamEntityRefs = XML_TRUE;
+      if (startDoctypeDeclHandler) {
+        doctypePubid = poolStoreString(&tempPool, enc,
+                                       s + enc->minBytesPerChar,
+                                       next - enc->minBytesPerChar);
+        if (!doctypePubid)
+          return XML_ERROR_NO_MEMORY;
+        poolFinish(&tempPool);
+        handleDefault = XML_FALSE;
+      }
+#ifdef XML_DTD
+      declEntity = (ENTITY *)lookup(&dtd->paramEntities,
+                                    externalSubsetName,
+                                    sizeof(ENTITY));
+      if (!declEntity)
+        return XML_ERROR_NO_MEMORY;
+#endif /* XML_DTD */
+      /* fall through */
+    case XML_ROLE_ENTITY_PUBLIC_ID:
+      if (!XmlIsPublicId(enc, s, next, eventPP))
+        return XML_ERROR_SYNTAX;
+      if (dtd->keepProcessing && declEntity) {
+        XML_Char *tem = poolStoreString(&dtd->pool,
+                                        enc,
+                                        s + enc->minBytesPerChar,
+                                        next - enc->minBytesPerChar);
+        if (!tem)
+          return XML_ERROR_NO_MEMORY;
+        normalizePublicId(tem);
+        declEntity->publicId = tem;
+        poolFinish(&dtd->pool);
+        if (entityDeclHandler)
+          handleDefault = XML_FALSE;
+      }
+      break;
+    case XML_ROLE_DOCTYPE_CLOSE:
+      if (doctypeName) {
+        startDoctypeDeclHandler(handlerArg, doctypeName,
+                                doctypeSysid, doctypePubid, 0);
+        poolClear(&tempPool);
+        handleDefault = XML_FALSE;
+      }
+      /* doctypeSysid will be non-NULL in the case of a previous
+         XML_ROLE_DOCTYPE_SYSTEM_ID, even if startDoctypeDeclHandler
+         was not set, indicating an external subset
+      */
+#ifdef XML_DTD
+      if (doctypeSysid || useForeignDTD) {
+        dtd->hasParamEntityRefs = XML_TRUE; /* when docTypeSysid == NULL */
+        if (paramEntityParsing && externalEntityRefHandler) {
+          ENTITY *entity = (ENTITY *)lookup(&dtd->paramEntities,
+                                            externalSubsetName,
+                                            sizeof(ENTITY));
+          if (!entity)
+            return XML_ERROR_NO_MEMORY;
+          if (useForeignDTD)
+            entity->base = curBase;
+          dtd->paramEntityRead = XML_FALSE;
+          if (!externalEntityRefHandler(externalEntityRefHandlerArg,
+                                        0,
+                                        entity->base,
+                                        entity->systemId,
+                                        entity->publicId))
+            return XML_ERROR_EXTERNAL_ENTITY_HANDLING;
+          if (dtd->paramEntityRead &&
+              !dtd->standalone &&
+              notStandaloneHandler &&
+              !notStandaloneHandler(handlerArg))
+            return XML_ERROR_NOT_STANDALONE;
+          /* end of DTD - no need to update dtd->keepProcessing */
+        }
+        useForeignDTD = XML_FALSE;
+      }
+#endif /* XML_DTD */
+      if (endDoctypeDeclHandler) {
+        endDoctypeDeclHandler(handlerArg);
+        handleDefault = XML_FALSE;
+      }
+      break;
+    case XML_ROLE_INSTANCE_START:
+#ifdef XML_DTD
+      /* if there is no DOCTYPE declaration then now is the
+         last chance to read the foreign DTD
+      */
+      if (useForeignDTD) {
+        dtd->hasParamEntityRefs = XML_TRUE;
+        if (paramEntityParsing && externalEntityRefHandler) {
+          ENTITY *entity = (ENTITY *)lookup(&dtd->paramEntities,
+                                            externalSubsetName,
+                                            sizeof(ENTITY));
+          if (!entity)
+            return XML_ERROR_NO_MEMORY;
+          entity->base = curBase;
+          dtd->paramEntityRead = XML_FALSE;
+          if (!externalEntityRefHandler(externalEntityRefHandlerArg,
+                                        0,
+                                        entity->base,
+                                        entity->systemId,
+                                        entity->publicId))
+            return XML_ERROR_EXTERNAL_ENTITY_HANDLING;
+          if (dtd->paramEntityRead &&
+              !dtd->standalone &&
+              notStandaloneHandler &&
+              !notStandaloneHandler(handlerArg))
+            return XML_ERROR_NOT_STANDALONE;
+          /* end of DTD - no need to update dtd->keepProcessing */
+        }
+      }
+#endif /* XML_DTD */
+      processor = contentProcessor;
+      return contentProcessor(parser, s, end, nextPtr);
+    case XML_ROLE_ATTLIST_ELEMENT_NAME:
+      declElementType = getElementType(parser, enc, s, next);
+      if (!declElementType)
+        return XML_ERROR_NO_MEMORY;
+      goto checkAttListDeclHandler;
+    case XML_ROLE_ATTRIBUTE_NAME:
+      declAttributeId = getAttributeId(parser, enc, s, next);
+      if (!declAttributeId)
+        return XML_ERROR_NO_MEMORY;
+      declAttributeIsCdata = XML_FALSE;
+      declAttributeType = NULL;
+      declAttributeIsId = XML_FALSE;
+      goto checkAttListDeclHandler;
+    case XML_ROLE_ATTRIBUTE_TYPE_CDATA:
+      declAttributeIsCdata = XML_TRUE;
+      declAttributeType = atypeCDATA;
+      goto checkAttListDeclHandler;
+    case XML_ROLE_ATTRIBUTE_TYPE_ID:
+      declAttributeIsId = XML_TRUE;
+      declAttributeType = atypeID;
+      goto checkAttListDeclHandler;
+    case XML_ROLE_ATTRIBUTE_TYPE_IDREF:
+      declAttributeType = atypeIDREF;
+      goto checkAttListDeclHandler;
+    case XML_ROLE_ATTRIBUTE_TYPE_IDREFS:
+      declAttributeType = atypeIDREFS;
+      goto checkAttListDeclHandler;
+    case XML_ROLE_ATTRIBUTE_TYPE_ENTITY:
+      declAttributeType = atypeENTITY;
+      goto checkAttListDeclHandler;
+    case XML_ROLE_ATTRIBUTE_TYPE_ENTITIES:
+      declAttributeType = atypeENTITIES;
+      goto checkAttListDeclHandler;
+    case XML_ROLE_ATTRIBUTE_TYPE_NMTOKEN:
+      declAttributeType = atypeNMTOKEN;
+      goto checkAttListDeclHandler;
+    case XML_ROLE_ATTRIBUTE_TYPE_NMTOKENS:
+      declAttributeType = atypeNMTOKENS;
+    checkAttListDeclHandler:
+      if (dtd->keepProcessing && attlistDeclHandler)
+        handleDefault = XML_FALSE;
+      break;
+    case XML_ROLE_ATTRIBUTE_ENUM_VALUE:
+    case XML_ROLE_ATTRIBUTE_NOTATION_VALUE:
+      if (dtd->keepProcessing && attlistDeclHandler) {
+        const XML_Char *prefix;
+        if (declAttributeType) {
+          prefix = enumValueSep;
+        }
+        else {
+          prefix = (role == XML_ROLE_ATTRIBUTE_NOTATION_VALUE
+                    ? notationPrefix
+                    : enumValueStart);
+        }
+        if (!poolAppendString(&tempPool, prefix))
+          return XML_ERROR_NO_MEMORY;
+        if (!poolAppend(&tempPool, enc, s, next))
+          return XML_ERROR_NO_MEMORY;
+        declAttributeType = tempPool.start;
+        handleDefault = XML_FALSE;
+      }
+      break;
+    case XML_ROLE_IMPLIED_ATTRIBUTE_VALUE:
+    case XML_ROLE_REQUIRED_ATTRIBUTE_VALUE:
+      if (dtd->keepProcessing) {
+        if (!defineAttribute(declElementType, declAttributeId,
+                              declAttributeIsCdata, declAttributeIsId, 0,
+                              parser))
+          return XML_ERROR_NO_MEMORY;
+        if (attlistDeclHandler && declAttributeType) {
+          if (*declAttributeType == XML_T('(')
+              || (*declAttributeType == XML_T('N')
+                  && declAttributeType[1] == XML_T('O'))) {
+            /* Enumerated or Notation type */
+            if (!poolAppendChar(&tempPool, XML_T(')'))
+                || !poolAppendChar(&tempPool, XML_T('\0')))
+              return XML_ERROR_NO_MEMORY;
+            declAttributeType = tempPool.start;
+            poolFinish(&tempPool);
+          }
+          *eventEndPP = s;
+          attlistDeclHandler(handlerArg, declElementType->name,
+                             declAttributeId->name, declAttributeType,
+                             0, role == XML_ROLE_REQUIRED_ATTRIBUTE_VALUE);
+          poolClear(&tempPool);
+          handleDefault = XML_FALSE;
+        }
+      }
+      break;
+    case XML_ROLE_DEFAULT_ATTRIBUTE_VALUE:
+    case XML_ROLE_FIXED_ATTRIBUTE_VALUE:
+      if (dtd->keepProcessing) {
+        const XML_Char *attVal;
+        enum XML_Error result
+          = storeAttributeValue(parser, enc, declAttributeIsCdata,
+                                s + enc->minBytesPerChar,
+                                next - enc->minBytesPerChar,
+                                &dtd->pool);
+        if (result)
+          return result;
+        attVal = poolStart(&dtd->pool);
+        poolFinish(&dtd->pool);
+        /* ID attributes aren't allowed to have a default */
+        if (!defineAttribute(declElementType, declAttributeId,
+                             declAttributeIsCdata, XML_FALSE, attVal, parser))
+          return XML_ERROR_NO_MEMORY;
+        if (attlistDeclHandler && declAttributeType) {
+          if (*declAttributeType == XML_T('(')
+              || (*declAttributeType == XML_T('N')
+                  && declAttributeType[1] == XML_T('O'))) {
+            /* Enumerated or Notation type */
+            if (!poolAppendChar(&tempPool, XML_T(')'))
+                || !poolAppendChar(&tempPool, XML_T('\0')))
+              return XML_ERROR_NO_MEMORY;
+            declAttributeType = tempPool.start;
+            poolFinish(&tempPool);
+          }
+          *eventEndPP = s;
+          attlistDeclHandler(handlerArg, declElementType->name,
+                             declAttributeId->name, declAttributeType,
+                             attVal,
+                             role == XML_ROLE_FIXED_ATTRIBUTE_VALUE);
+          poolClear(&tempPool);
+          handleDefault = XML_FALSE;
+        }
+      }
+      break;
+    case XML_ROLE_ENTITY_VALUE:
+      if (dtd->keepProcessing) {
+        enum XML_Error result = storeEntityValue(parser, enc,
+                                            s + enc->minBytesPerChar,
+                                            next - enc->minBytesPerChar);
+        if (declEntity) {
+          declEntity->textPtr = poolStart(&dtd->entityValuePool);
+          declEntity->textLen = poolLength(&dtd->entityValuePool);
+          poolFinish(&dtd->entityValuePool);
+          if (entityDeclHandler) {
+            *eventEndPP = s;
+            entityDeclHandler(handlerArg,
+                              declEntity->name,
+                              declEntity->is_param,
+                              declEntity->textPtr,
+                              declEntity->textLen,
+                              curBase, 0, 0, 0);
+            handleDefault = XML_FALSE;
+          }
+        }
+        else
+          poolDiscard(&dtd->entityValuePool);
+        if (result != XML_ERROR_NONE)
+          return result;
+      }
+      break;
+    case XML_ROLE_DOCTYPE_SYSTEM_ID:
+#ifdef XML_DTD
+      useForeignDTD = XML_FALSE;
+#endif /* XML_DTD */
+      dtd->hasParamEntityRefs = XML_TRUE;
+      if (startDoctypeDeclHandler) {
+        doctypeSysid = poolStoreString(&tempPool, enc,
+                                       s + enc->minBytesPerChar,
+                                       next - enc->minBytesPerChar);
+        if (doctypeSysid == NULL)
+          return XML_ERROR_NO_MEMORY;
+        poolFinish(&tempPool);
+        handleDefault = XML_FALSE;
+      }
+#ifdef XML_DTD
+      else
+        /* use externalSubsetName to make doctypeSysid non-NULL
+           for the case where no startDoctypeDeclHandler is set */
+        doctypeSysid = externalSubsetName;
+#endif /* XML_DTD */
+      if (!dtd->standalone
+#ifdef XML_DTD
+          && !paramEntityParsing
+#endif /* XML_DTD */
+          && notStandaloneHandler
+          && !notStandaloneHandler(handlerArg))
+        return XML_ERROR_NOT_STANDALONE;
+#ifndef XML_DTD
+      break;
+#else /* XML_DTD */
+      if (!declEntity) {
+        declEntity = (ENTITY *)lookup(&dtd->paramEntities,
+                                      externalSubsetName,
+                                      sizeof(ENTITY));
+        if (!declEntity)
+          return XML_ERROR_NO_MEMORY;
+        declEntity->publicId = NULL;
+      }
+      /* fall through */
+#endif /* XML_DTD */
+    case XML_ROLE_ENTITY_SYSTEM_ID:
+      if (dtd->keepProcessing && declEntity) {
+        declEntity->systemId = poolStoreString(&dtd->pool, enc,
+                                               s + enc->minBytesPerChar,
+                                               next - enc->minBytesPerChar);
+        if (!declEntity->systemId)
+          return XML_ERROR_NO_MEMORY;
+        declEntity->base = curBase;
+        poolFinish(&dtd->pool);
+        if (entityDeclHandler)
+          handleDefault = XML_FALSE;
+      }
+      break;
+    case XML_ROLE_ENTITY_COMPLETE:
+      if (dtd->keepProcessing && declEntity && entityDeclHandler) {
+        *eventEndPP = s;
+        entityDeclHandler(handlerArg,
+                          declEntity->name,
+                          declEntity->is_param,
+                          0,0,
+                          declEntity->base,
+                          declEntity->systemId,
+                          declEntity->publicId,
+                          0);
+        handleDefault = XML_FALSE;
+      }
+      break;
+    case XML_ROLE_ENTITY_NOTATION_NAME:
+      if (dtd->keepProcessing && declEntity) {
+        declEntity->notation = poolStoreString(&dtd->pool, enc, s, next);
+        if (!declEntity->notation)
+          return XML_ERROR_NO_MEMORY;
+        poolFinish(&dtd->pool);
+        if (unparsedEntityDeclHandler) {
+          *eventEndPP = s;
+          unparsedEntityDeclHandler(handlerArg,
+                                    declEntity->name,
+                                    declEntity->base,
+                                    declEntity->systemId,
+                                    declEntity->publicId,
+                                    declEntity->notation);
+          handleDefault = XML_FALSE;
+        }
+        else if (entityDeclHandler) {
+          *eventEndPP = s;
+          entityDeclHandler(handlerArg,
+                            declEntity->name,
+                            0,0,0,
+                            declEntity->base,
+                            declEntity->systemId,
+                            declEntity->publicId,
+                            declEntity->notation);
+          handleDefault = XML_FALSE;
+        }
+      }
+      break;
+    case XML_ROLE_GENERAL_ENTITY_NAME:
+      {
+        if (XmlPredefinedEntityName(enc, s, next)) {
+          declEntity = NULL;
+          break;
+        }
+        if (dtd->keepProcessing) {
+          const XML_Char *name = poolStoreString(&dtd->pool, enc, s, next);
+          if (!name)
+            return XML_ERROR_NO_MEMORY;
+          declEntity = (ENTITY *)lookup(&dtd->generalEntities, name,
+                                        sizeof(ENTITY));
+          if (!declEntity)
+            return XML_ERROR_NO_MEMORY;
+          if (declEntity->name != name) {
+            poolDiscard(&dtd->pool);
+            declEntity = NULL;
+          }
+          else {
+            poolFinish(&dtd->pool);
+            declEntity->publicId = NULL;
+            declEntity->is_param = XML_FALSE;
+            /* if we have a parent parser or are reading an internal parameter
+               entity, then the entity declaration is not considered "internal"
+            */
+            declEntity->is_internal = !(parentParser || openInternalEntities);
+            if (entityDeclHandler)
+              handleDefault = XML_FALSE;
+          }
+        }
+        else {
+          poolDiscard(&dtd->pool);
+          declEntity = NULL;
+        }
+      }
+      break;
+    case XML_ROLE_PARAM_ENTITY_NAME:
+#ifdef XML_DTD
+      if (dtd->keepProcessing) {
+        const XML_Char *name = poolStoreString(&dtd->pool, enc, s, next);
+        if (!name)
+          return XML_ERROR_NO_MEMORY;
+        declEntity = (ENTITY *)lookup(&dtd->paramEntities,
+                                           name, sizeof(ENTITY));
+        if (!declEntity)
+          return XML_ERROR_NO_MEMORY;
+        if (declEntity->name != name) {
+          poolDiscard(&dtd->pool);
+          declEntity = NULL;
+        }
+        else {
+          poolFinish(&dtd->pool);
+          declEntity->publicId = NULL;
+          declEntity->is_param = XML_TRUE;
+          /* if we have a parent parser or are reading an internal parameter
+             entity, then the entity declaration is not considered "internal"
+          */
+          declEntity->is_internal = !(parentParser || openInternalEntities);
+          if (entityDeclHandler)
+            handleDefault = XML_FALSE;
+        }
+      }
+      else {
+        poolDiscard(&dtd->pool);
+        declEntity = NULL;
+      }
+#else /* not XML_DTD */
+      declEntity = NULL;
+#endif /* XML_DTD */
+      break;
+    case XML_ROLE_NOTATION_NAME:
+      declNotationPublicId = NULL;
+      declNotationName = NULL;
+      if (notationDeclHandler) {
+        declNotationName = poolStoreString(&tempPool, enc, s, next);
+        if (!declNotationName)
+          return XML_ERROR_NO_MEMORY;
+        poolFinish(&tempPool);
+        handleDefault = XML_FALSE;
+      }
+      break;
+    case XML_ROLE_NOTATION_PUBLIC_ID:
+      if (!XmlIsPublicId(enc, s, next, eventPP))
+        return XML_ERROR_SYNTAX;
+      if (declNotationName) {  /* means notationDeclHandler != NULL */
+        XML_Char *tem = poolStoreString(&tempPool,
+                                        enc,
+                                        s + enc->minBytesPerChar,
+                                        next - enc->minBytesPerChar);
+        if (!tem)
+          return XML_ERROR_NO_MEMORY;
+        normalizePublicId(tem);
+        declNotationPublicId = tem;
+        poolFinish(&tempPool);
+        handleDefault = XML_FALSE;
+      }
+      break;
+    case XML_ROLE_NOTATION_SYSTEM_ID:
+      if (declNotationName && notationDeclHandler) {
+        const XML_Char *systemId
+          = poolStoreString(&tempPool, enc,
+                            s + enc->minBytesPerChar,
+                            next - enc->minBytesPerChar);
+        if (!systemId)
+          return XML_ERROR_NO_MEMORY;
+        *eventEndPP = s;
+        notationDeclHandler(handlerArg,
+                            declNotationName,
+                            curBase,
+                            systemId,
+                            declNotationPublicId);
+        handleDefault = XML_FALSE;
+      }
+      poolClear(&tempPool);
+      break;
+    case XML_ROLE_NOTATION_NO_SYSTEM_ID:
+      if (declNotationPublicId && notationDeclHandler) {
+        *eventEndPP = s;
+        notationDeclHandler(handlerArg,
+                            declNotationName,
+                            curBase,
+                            0,
+                            declNotationPublicId);
+        handleDefault = XML_FALSE;
+      }
+      poolClear(&tempPool);
+      break;
+    case XML_ROLE_ERROR:
+      switch (tok) {
+      case XML_TOK_PARAM_ENTITY_REF:
+        return XML_ERROR_PARAM_ENTITY_REF;
+      case XML_TOK_XML_DECL:
+        return XML_ERROR_MISPLACED_XML_PI;
+      default:
+        return XML_ERROR_SYNTAX;
+      }
+#ifdef XML_DTD
+    case XML_ROLE_IGNORE_SECT:
+      {
+        enum XML_Error result;
+        if (defaultHandler)
+          reportDefault(parser, enc, s, next);
+        handleDefault = XML_FALSE;
+        result = doIgnoreSection(parser, enc, &next, end, nextPtr);
+        if (!next) {
+          processor = ignoreSectionProcessor;
+          return result;
+        }
+      }
+      break;
+#endif /* XML_DTD */
+    case XML_ROLE_GROUP_OPEN:
+      if (prologState.level >= groupSize) {
+        if (groupSize) {
+          char *temp = (char *)REALLOC(groupConnector, groupSize *= 2);
+          if (temp == NULL)
+            return XML_ERROR_NO_MEMORY;
+          groupConnector = temp;
+          if (dtd->scaffIndex) {
+            int *temp = (int *)REALLOC(dtd->scaffIndex,
+                          groupSize * sizeof(int));
+            if (temp == NULL)
+              return XML_ERROR_NO_MEMORY;
+            dtd->scaffIndex = temp;
+          }
+        }
+        else {
+          groupConnector = (char *)MALLOC(groupSize = 32);
+          if (!groupConnector)
+            return XML_ERROR_NO_MEMORY;
+        }
+      }
+      groupConnector[prologState.level] = 0;
+      if (dtd->in_eldecl) {
+        int myindex = nextScaffoldPart(parser);
+        if (myindex < 0)
+          return XML_ERROR_NO_MEMORY;
+        dtd->scaffIndex[dtd->scaffLevel] = myindex;
+        dtd->scaffLevel++;
+        dtd->scaffold[myindex].type = XML_CTYPE_SEQ;
+        if (elementDeclHandler)
+          handleDefault = XML_FALSE;
+      }
+      break;
+    case XML_ROLE_GROUP_SEQUENCE:
+      if (groupConnector[prologState.level] == '|')
+        return XML_ERROR_SYNTAX;
+      groupConnector[prologState.level] = ',';
+      if (dtd->in_eldecl && elementDeclHandler)
+        handleDefault = XML_FALSE;
+      break;
+    case XML_ROLE_GROUP_CHOICE:
+      if (groupConnector[prologState.level] == ',')
+        return XML_ERROR_SYNTAX;
+      if (dtd->in_eldecl
+          && !groupConnector[prologState.level]
+          && (dtd->scaffold[dtd->scaffIndex[dtd->scaffLevel - 1]].type
+              != XML_CTYPE_MIXED)
+          ) {
+        dtd->scaffold[dtd->scaffIndex[dtd->scaffLevel - 1]].type
+            = XML_CTYPE_CHOICE;
+        if (elementDeclHandler)
+          handleDefault = XML_FALSE;
+      }
+      groupConnector[prologState.level] = '|';
+      break;
+    case XML_ROLE_PARAM_ENTITY_REF:
+#ifdef XML_DTD
+    case XML_ROLE_INNER_PARAM_ENTITY_REF:
+      /* PE references in internal subset are
+         not allowed within declarations      */
+      if (prologState.documentEntity &&
+          role == XML_ROLE_INNER_PARAM_ENTITY_REF)
+        return XML_ERROR_PARAM_ENTITY_REF;
+      dtd->hasParamEntityRefs = XML_TRUE;
+      if (!paramEntityParsing)
+        dtd->keepProcessing = dtd->standalone;
+      else {
+        const XML_Char *name;
+        ENTITY *entity;
+        name = poolStoreString(&dtd->pool, enc,
+                                s + enc->minBytesPerChar,
+                                next - enc->minBytesPerChar);
+        if (!name)
+          return XML_ERROR_NO_MEMORY;
+        entity = (ENTITY *)lookup(&dtd->paramEntities, name, 0);
+        poolDiscard(&dtd->pool);
+        /* first, determine if a check for an existing declaration is needed;
+           if yes, check that the entity exists, and that it is internal,
+           otherwise call the skipped entity handler
+        */
+        if (prologState.documentEntity &&
+            (dtd->standalone
+             ? !openInternalEntities
+             : !dtd->hasParamEntityRefs)) {
+          if (!entity)
+            return XML_ERROR_UNDEFINED_ENTITY;
+          else if (!entity->is_internal)
+            return XML_ERROR_ENTITY_DECLARED_IN_PE;
+        }
+        else if (!entity) {
+          dtd->keepProcessing = dtd->standalone;
+          /* cannot report skipped entities in declarations */
+          if ((role == XML_ROLE_PARAM_ENTITY_REF) && skippedEntityHandler) {
+            skippedEntityHandler(handlerArg, name, 1);
+            handleDefault = XML_FALSE;
+          }
+          break;
+        }
+        if (entity->open)
+          return XML_ERROR_RECURSIVE_ENTITY_REF;
+        if (entity->textPtr) {
+          enum XML_Error result;
+          result = processInternalParamEntity(parser, entity);
+          if (result != XML_ERROR_NONE)
+            return result;
+          handleDefault = XML_FALSE;
+          break;
+        }
+        if (externalEntityRefHandler) {
+          dtd->paramEntityRead = XML_FALSE;
+          entity->open = XML_TRUE;
+          if (!externalEntityRefHandler(externalEntityRefHandlerArg,
+                                        0,
+                                        entity->base,
+                                        entity->systemId,
+                                        entity->publicId)) {
+            entity->open = XML_FALSE;
+            return XML_ERROR_EXTERNAL_ENTITY_HANDLING;
+          }
+          entity->open = XML_FALSE;
+          handleDefault = XML_FALSE;
+          if (!dtd->paramEntityRead) {
+            dtd->keepProcessing = dtd->standalone;
+            break;
+          }
+        }
+        else {
+          dtd->keepProcessing = dtd->standalone;
+          break;
+        }
+      }
+#endif /* XML_DTD */
+      if (!dtd->standalone &&
+          notStandaloneHandler &&
+          !notStandaloneHandler(handlerArg))
+        return XML_ERROR_NOT_STANDALONE;
+      break;
+
+    /* Element declaration stuff */
+
+    case XML_ROLE_ELEMENT_NAME:
+      if (elementDeclHandler) {
+        declElementType = getElementType(parser, enc, s, next);
+        if (!declElementType)
+          return XML_ERROR_NO_MEMORY;
+        dtd->scaffLevel = 0;
+        dtd->scaffCount = 0;
+        dtd->in_eldecl = XML_TRUE;
+        handleDefault = XML_FALSE;
+      }
+      break;
+
+    case XML_ROLE_CONTENT_ANY:
+    case XML_ROLE_CONTENT_EMPTY:
+      if (dtd->in_eldecl) {
+        if (elementDeclHandler) {
+          XML_Content * content = (XML_Content *) MALLOC(sizeof(XML_Content));
+          if (!content)
+            return XML_ERROR_NO_MEMORY;
+          content->quant = XML_CQUANT_NONE;
+          content->name = NULL;
+          content->numchildren = 0;
+          content->children = NULL;
+          content->type = ((role == XML_ROLE_CONTENT_ANY) ?
+                           XML_CTYPE_ANY :
+                           XML_CTYPE_EMPTY);
+          *eventEndPP = s;
+          elementDeclHandler(handlerArg, declElementType->name, content);
+          handleDefault = XML_FALSE;
+        }
+        dtd->in_eldecl = XML_FALSE;
+      }
+      break;
+
+    case XML_ROLE_CONTENT_PCDATA:
+      if (dtd->in_eldecl) {
+        dtd->scaffold[dtd->scaffIndex[dtd->scaffLevel - 1]].type
+            = XML_CTYPE_MIXED;
+        if (elementDeclHandler)
+          handleDefault = XML_FALSE;
+      }
+      break;
+
+    case XML_ROLE_CONTENT_ELEMENT:
+      quant = XML_CQUANT_NONE;
+      goto elementContent;
+    case XML_ROLE_CONTENT_ELEMENT_OPT:
+      quant = XML_CQUANT_OPT;
+      goto elementContent;
+    case XML_ROLE_CONTENT_ELEMENT_REP:
+      quant = XML_CQUANT_REP;
+      goto elementContent;
+    case XML_ROLE_CONTENT_ELEMENT_PLUS:
+      quant = XML_CQUANT_PLUS;
+    elementContent:
+      if (dtd->in_eldecl) {
+        ELEMENT_TYPE *el;
+        const XML_Char *name;
+        int nameLen;
+        const char *nxt = (quant == XML_CQUANT_NONE
+                           ? next
+                           : next - enc->minBytesPerChar);
+        int myindex = nextScaffoldPart(parser);
+        if (myindex < 0)
+          return XML_ERROR_NO_MEMORY;
+        dtd->scaffold[myindex].type = XML_CTYPE_NAME;
+        dtd->scaffold[myindex].quant = quant;
+        el = getElementType(parser, enc, s, nxt);
+        if (!el)
+          return XML_ERROR_NO_MEMORY;
+        name = el->name;
+        dtd->scaffold[myindex].name = name;
+        nameLen = 0;
+        for (; name[nameLen++]; );
+        dtd->contentStringLen +=  nameLen;
+        if (elementDeclHandler)
+          handleDefault = XML_FALSE;
+      }
+      break;
+
+    case XML_ROLE_GROUP_CLOSE:
+      quant = XML_CQUANT_NONE;
+      goto closeGroup;
+    case XML_ROLE_GROUP_CLOSE_OPT:
+      quant = XML_CQUANT_OPT;
+      goto closeGroup;
+    case XML_ROLE_GROUP_CLOSE_REP:
+      quant = XML_CQUANT_REP;
+      goto closeGroup;
+    case XML_ROLE_GROUP_CLOSE_PLUS:
+      quant = XML_CQUANT_PLUS;
+    closeGroup:
+      if (dtd->in_eldecl) {
+        if (elementDeclHandler)
+          handleDefault = XML_FALSE;
+        dtd->scaffLevel--;
+        dtd->scaffold[dtd->scaffIndex[dtd->scaffLevel]].quant = quant;
+        if (dtd->scaffLevel == 0) {
+          if (!handleDefault) {
+            XML_Content *model = build_model(parser);
+            if (!model)
+              return XML_ERROR_NO_MEMORY;
+            *eventEndPP = s;
+            elementDeclHandler(handlerArg, declElementType->name, model);
+          }
+          dtd->in_eldecl = XML_FALSE;
+          dtd->contentStringLen = 0;
+        }
+      }
+      break;
+      /* End element declaration stuff */
+
+    case XML_ROLE_PI:
+      if (!reportProcessingInstruction(parser, enc, s, next))
+        return XML_ERROR_NO_MEMORY;
+      handleDefault = XML_FALSE;
+      break;
+    case XML_ROLE_COMMENT:
+      if (!reportComment(parser, enc, s, next))
+        return XML_ERROR_NO_MEMORY;
+      handleDefault = XML_FALSE;
+      break;
+    case XML_ROLE_NONE:
+      switch (tok) {
+      case XML_TOK_BOM:
+        handleDefault = XML_FALSE;
+        break;
+      }
+      break;
+    case XML_ROLE_DOCTYPE_NONE:
+      if (startDoctypeDeclHandler)
+        handleDefault = XML_FALSE;
+      break;
+    case XML_ROLE_ENTITY_NONE:
+      if (dtd->keepProcessing && entityDeclHandler)
+        handleDefault = XML_FALSE;
+      break;
+    case XML_ROLE_NOTATION_NONE:
+      if (notationDeclHandler)
+        handleDefault = XML_FALSE;
+      break;
+    case XML_ROLE_ATTLIST_NONE:
+      if (dtd->keepProcessing && attlistDeclHandler)
+        handleDefault = XML_FALSE;
+      break;
+    case XML_ROLE_ELEMENT_NONE:
+      if (elementDeclHandler)
+        handleDefault = XML_FALSE;
+      break;
+    } /* end of big switch */
+
+    if (handleDefault && defaultHandler)
+      reportDefault(parser, enc, s, next);
+
+    s = next;
+    tok = XmlPrologTok(enc, s, end, &next);
+  }
+  /* not reached */
+}
+
+static enum XML_Error PTRCALL
+epilogProcessor(XML_Parser parser,
+                const char *s,
+                const char *end,
+                const char **nextPtr)
+{
+  processor = epilogProcessor;
+  eventPtr = s;
+  for (;;) {
+    const char *next = NULL;
+    int tok = XmlPrologTok(encoding, s, end, &next);
+    eventEndPtr = next;
+    switch (tok) {
+    /* report partial linebreak - it might be the last token */
+    case -XML_TOK_PROLOG_S:
+      if (defaultHandler) {
+        eventEndPtr = next;
+        reportDefault(parser, encoding, s, next);
+      }
+      if (nextPtr)
+        *nextPtr = next;
+      return XML_ERROR_NONE;
+    case XML_TOK_NONE:
+      if (nextPtr)
+        *nextPtr = s;
+      return XML_ERROR_NONE;
+    case XML_TOK_PROLOG_S:
+      if (defaultHandler)
+        reportDefault(parser, encoding, s, next);
+      break;
+    case XML_TOK_PI:
+      if (!reportProcessingInstruction(parser, encoding, s, next))
+        return XML_ERROR_NO_MEMORY;
+      break;
+    case XML_TOK_COMMENT:
+      if (!reportComment(parser, encoding, s, next))
+        return XML_ERROR_NO_MEMORY;
+      break;
+    case XML_TOK_INVALID:
+      eventPtr = next;
+      return XML_ERROR_INVALID_TOKEN;
+    case XML_TOK_PARTIAL:
+      if (nextPtr) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      return XML_ERROR_UNCLOSED_TOKEN;
+    case XML_TOK_PARTIAL_CHAR:
+      if (nextPtr) {
+        *nextPtr = s;
+        return XML_ERROR_NONE;
+      }
+      return XML_ERROR_PARTIAL_CHAR;
+    default:
+      return XML_ERROR_JUNK_AFTER_DOC_ELEMENT;
+    }
+    eventPtr = s = next;
+  }
+}
+
+#ifdef XML_DTD
+
+static enum XML_Error
+processInternalParamEntity(XML_Parser parser, ENTITY *entity)
+{
+  const char *s, *end, *next;
+  int tok;
+  enum XML_Error result;
+  OPEN_INTERNAL_ENTITY openEntity;
+  entity->open = XML_TRUE;
+  openEntity.next = openInternalEntities;
+  openInternalEntities = &openEntity;
+  openEntity.entity = entity;
+  openEntity.internalEventPtr = NULL;
+  openEntity.internalEventEndPtr = NULL;
+  s = (char *)entity->textPtr;
+  end = (char *)(entity->textPtr + entity->textLen);
+  tok = XmlPrologTok(internalEncoding, s, end, &next);
+  result = doProlog(parser, internalEncoding, s, end, tok, next, 0);
+  entity->open = XML_FALSE;
+  openInternalEntities = openEntity.next;
+  return result;
+}
+
+#endif /* XML_DTD */
+
+static enum XML_Error PTRCALL
+errorProcessor(XML_Parser parser,
+               const char *s,
+               const char *end,
+               const char **nextPtr)
+{
+  return errorCode;
+}
+
+static enum XML_Error
+storeAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
+                    const char *ptr, const char *end,
+                    STRING_POOL *pool)
+{
+  enum XML_Error result = appendAttributeValue(parser, enc, isCdata, ptr,
+                                               end, pool);
+  if (result)
+    return result;
+  if (!isCdata && poolLength(pool) && poolLastChar(pool) == 0x20)
+    poolChop(pool);
+  if (!poolAppendChar(pool, XML_T('\0')))
+    return XML_ERROR_NO_MEMORY;
+  return XML_ERROR_NONE;
+}
+
+static enum XML_Error
+appendAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
+                     const char *ptr, const char *end,
+                     STRING_POOL *pool)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  for (;;) {
+    const char *next;
+    int tok = XmlAttributeValueTok(enc, ptr, end, &next);
+    switch (tok) {
+    case XML_TOK_NONE:
+      return XML_ERROR_NONE;
+    case XML_TOK_INVALID:
+      if (enc == encoding)
+        eventPtr = next;
+      return XML_ERROR_INVALID_TOKEN;
+    case XML_TOK_PARTIAL:
+      if (enc == encoding)
+        eventPtr = ptr;
+      return XML_ERROR_INVALID_TOKEN;
+    case XML_TOK_CHAR_REF:
+      {
+        XML_Char buf[XML_ENCODE_MAX];
+        int i;
+        int n = XmlCharRefNumber(enc, ptr);
+        if (n < 0) {
+          if (enc == encoding)
+            eventPtr = ptr;
+          return XML_ERROR_BAD_CHAR_REF;
+        }
+        if (!isCdata
+            && n == 0x20 /* space */
+            && (poolLength(pool) == 0 || poolLastChar(pool) == 0x20))
+          break;
+        n = XmlEncode(n, (ICHAR *)buf);
+        if (!n) {
+          if (enc == encoding)
+            eventPtr = ptr;
+          return XML_ERROR_BAD_CHAR_REF;
+        }
+        for (i = 0; i < n; i++) {
+          if (!poolAppendChar(pool, buf[i]))
+            return XML_ERROR_NO_MEMORY;
+        }
+      }
+      break;
+    case XML_TOK_DATA_CHARS:
+      if (!poolAppend(pool, enc, ptr, next))
+        return XML_ERROR_NO_MEMORY;
+      break;
+    case XML_TOK_TRAILING_CR:
+      next = ptr + enc->minBytesPerChar;
+      /* fall through */
+    case XML_TOK_ATTRIBUTE_VALUE_S:
+    case XML_TOK_DATA_NEWLINE:
+      if (!isCdata && (poolLength(pool) == 0 || poolLastChar(pool) == 0x20))
+        break;
+      if (!poolAppendChar(pool, 0x20))
+        return XML_ERROR_NO_MEMORY;
+      break;
+    case XML_TOK_ENTITY_REF:
+      {
+        const XML_Char *name;
+        ENTITY *entity;
+        char checkEntityDecl;
+        XML_Char ch = (XML_Char) XmlPredefinedEntityName(enc,
+                                              ptr + enc->minBytesPerChar,
+                                              next - enc->minBytesPerChar);
+        if (ch) {
+          if (!poolAppendChar(pool, ch))
+                return XML_ERROR_NO_MEMORY;
+          break;
+        }
+        name = poolStoreString(&temp2Pool, enc,
+                               ptr + enc->minBytesPerChar,
+                               next - enc->minBytesPerChar);
+        if (!name)
+          return XML_ERROR_NO_MEMORY;
+        entity = (ENTITY *)lookup(&dtd->generalEntities, name, 0);
+        poolDiscard(&temp2Pool);
+        /* first, determine if a check for an existing declaration is needed;
+           if yes, check that the entity exists, and that it is internal,
+           otherwise call the default handler (if called from content)
+        */
+        if (pool == &dtd->pool)  /* are we called from prolog? */
+          checkEntityDecl =
+#ifdef XML_DTD
+              prologState.documentEntity &&
+#endif /* XML_DTD */
+              (dtd->standalone
+               ? !openInternalEntities
+               : !dtd->hasParamEntityRefs);
+        else /* if (pool == &tempPool): we are called from content */
+          checkEntityDecl = !dtd->hasParamEntityRefs || dtd->standalone;
+        if (checkEntityDecl) {
+          if (!entity)
+            return XML_ERROR_UNDEFINED_ENTITY;
+          else if (!entity->is_internal)
+            return XML_ERROR_ENTITY_DECLARED_IN_PE;
+        }
+        else if (!entity) {
+          /* cannot report skipped entity here - see comments on
+             skippedEntityHandler
+          if (skippedEntityHandler)
+            skippedEntityHandler(handlerArg, name, 0);
+          */
+          if ((pool == &tempPool) && defaultHandler)
+            reportDefault(parser, enc, ptr, next);
+          break;
+        }
+        if (entity->open) {
+          if (enc == encoding)
+            eventPtr = ptr;
+          return XML_ERROR_RECURSIVE_ENTITY_REF;
+        }
+        if (entity->notation) {
+          if (enc == encoding)
+            eventPtr = ptr;
+          return XML_ERROR_BINARY_ENTITY_REF;
+        }
+        if (!entity->textPtr) {
+          if (enc == encoding)
+            eventPtr = ptr;
+              return XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF;
+        }
+        else {
+          enum XML_Error result;
+          const XML_Char *textEnd = entity->textPtr + entity->textLen;
+          entity->open = XML_TRUE;
+          result = appendAttributeValue(parser, internalEncoding, isCdata,
+                                        (char *)entity->textPtr,
+                                        (char *)textEnd, pool);
+          entity->open = XML_FALSE;
+          if (result)
+            return result;
+        }
+      }
+      break;
+    default:
+      if (enc == encoding)
+        eventPtr = ptr;
+      return XML_ERROR_UNEXPECTED_STATE;
+    }
+    ptr = next;
+  }
+  /* not reached */
+}
+
+static enum XML_Error
+storeEntityValue(XML_Parser parser,
+                 const ENCODING *enc,
+                 const char *entityTextPtr,
+                 const char *entityTextEnd)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  STRING_POOL *pool = &(dtd->entityValuePool);
+  enum XML_Error result = XML_ERROR_NONE;
+#ifdef XML_DTD
+  int oldInEntityValue = prologState.inEntityValue;
+  prologState.inEntityValue = 1;
+#endif /* XML_DTD */
+  /* never return Null for the value argument in EntityDeclHandler,
+     since this would indicate an external entity; therefore we
+     have to make sure that entityValuePool.start is not null */
+  if (!pool->blocks) {
+    if (!poolGrow(pool))
+      return XML_ERROR_NO_MEMORY;
+  }
+
+  for (;;) {
+    const char *next;
+    int tok = XmlEntityValueTok(enc, entityTextPtr, entityTextEnd, &next);
+    switch (tok) {
+    case XML_TOK_PARAM_ENTITY_REF:
+#ifdef XML_DTD
+      if (isParamEntity || enc != encoding) {
+        const XML_Char *name;
+        ENTITY *entity;
+        name = poolStoreString(&tempPool, enc,
+                               entityTextPtr + enc->minBytesPerChar,
+                               next - enc->minBytesPerChar);
+        if (!name) {
+          result = XML_ERROR_NO_MEMORY;
+          goto endEntityValue;
+        }
+        entity = (ENTITY *)lookup(&dtd->paramEntities, name, 0);
+        poolDiscard(&tempPool);
+        if (!entity) {
+          /* not a well-formedness error - see XML 1.0: WFC Entity Declared */
+          /* cannot report skipped entity here - see comments on
+             skippedEntityHandler
+          if (skippedEntityHandler)
+            skippedEntityHandler(handlerArg, name, 0);
+          */
+          dtd->keepProcessing = dtd->standalone;
+          goto endEntityValue;
+        }
+        if (entity->open) {
+          if (enc == encoding)
+            eventPtr = entityTextPtr;
+          result = XML_ERROR_RECURSIVE_ENTITY_REF;
+          goto endEntityValue;
+        }
+        if (entity->systemId) {
+          if (externalEntityRefHandler) {
+            dtd->paramEntityRead = XML_FALSE;
+            entity->open = XML_TRUE;
+            if (!externalEntityRefHandler(externalEntityRefHandlerArg,
+                                          0,
+                                          entity->base,
+                                          entity->systemId,
+                                          entity->publicId)) {
+              entity->open = XML_FALSE;
+              result = XML_ERROR_EXTERNAL_ENTITY_HANDLING;
+              goto endEntityValue;
+            }
+            entity->open = XML_FALSE;
+            if (!dtd->paramEntityRead)
+              dtd->keepProcessing = dtd->standalone;
+          }
+          else
+            dtd->keepProcessing = dtd->standalone;
+        }
+        else {
+          entity->open = XML_TRUE;
+          result = storeEntityValue(parser,
+                                    internalEncoding,
+                                    (char *)entity->textPtr,
+                                    (char *)(entity->textPtr
+                                             + entity->textLen));
+          entity->open = XML_FALSE;
+          if (result)
+            goto endEntityValue;
+        }
+        break;
+      }
+#endif /* XML_DTD */
+      /* in the internal subset, PE references are not legal
+         within markup declarations, e.g entity values in this case */
+      eventPtr = entityTextPtr;
+      result = XML_ERROR_PARAM_ENTITY_REF;
+      goto endEntityValue;
+    case XML_TOK_NONE:
+      result = XML_ERROR_NONE;
+      goto endEntityValue;
+    case XML_TOK_ENTITY_REF:
+    case XML_TOK_DATA_CHARS:
+      if (!poolAppend(pool, enc, entityTextPtr, next)) {
+        result = XML_ERROR_NO_MEMORY;
+        goto endEntityValue;
+      }
+      break;
+    case XML_TOK_TRAILING_CR:
+      next = entityTextPtr + enc->minBytesPerChar;
+      /* fall through */
+    case XML_TOK_DATA_NEWLINE:
+      if (pool->end == pool->ptr && !poolGrow(pool)) {
+              result = XML_ERROR_NO_MEMORY;
+        goto endEntityValue;
+      }
+      *(pool->ptr)++ = 0xA;
+      break;
+    case XML_TOK_CHAR_REF:
+      {
+        XML_Char buf[XML_ENCODE_MAX];
+        int i;
+        int n = XmlCharRefNumber(enc, entityTextPtr);
+        if (n < 0) {
+          if (enc == encoding)
+            eventPtr = entityTextPtr;
+          result = XML_ERROR_BAD_CHAR_REF;
+          goto endEntityValue;
+        }
+        n = XmlEncode(n, (ICHAR *)buf);
+        if (!n) {
+          if (enc == encoding)
+            eventPtr = entityTextPtr;
+          result = XML_ERROR_BAD_CHAR_REF;
+          goto endEntityValue;
+        }
+        for (i = 0; i < n; i++) {
+          if (pool->end == pool->ptr && !poolGrow(pool)) {
+            result = XML_ERROR_NO_MEMORY;
+            goto endEntityValue;
+          }
+          *(pool->ptr)++ = buf[i];
+        }
+      }
+      break;
+    case XML_TOK_PARTIAL:
+      if (enc == encoding)
+        eventPtr = entityTextPtr;
+      result = XML_ERROR_INVALID_TOKEN;
+      goto endEntityValue;
+    case XML_TOK_INVALID:
+      if (enc == encoding)
+        eventPtr = next;
+      result = XML_ERROR_INVALID_TOKEN;
+      goto endEntityValue;
+    default:
+      if (enc == encoding)
+        eventPtr = entityTextPtr;
+      result = XML_ERROR_UNEXPECTED_STATE;
+      goto endEntityValue;
+    }
+    entityTextPtr = next;
+  }
+endEntityValue:
+#ifdef XML_DTD
+  prologState.inEntityValue = oldInEntityValue;
+#endif /* XML_DTD */
+  return result;
+}
+
+static void FASTCALL
+normalizeLines(XML_Char *s)
+{
+  XML_Char *p;
+  for (;; s++) {
+    if (*s == XML_T('\0'))
+      return;
+    if (*s == 0xD)
+      break;
+  }
+  p = s;
+  do {
+    if (*s == 0xD) {
+      *p++ = 0xA;
+      if (*++s == 0xA)
+        s++;
+    }
+    else
+      *p++ = *s++;
+  } while (*s);
+  *p = XML_T('\0');
+}
+
+static int
+reportProcessingInstruction(XML_Parser parser, const ENCODING *enc,
+                            const char *start, const char *end)
+{
+  const XML_Char *target;
+  XML_Char *data;
+  const char *tem;
+  if (!processingInstructionHandler) {
+    if (defaultHandler)
+      reportDefault(parser, enc, start, end);
+    return 1;
+  }
+  start += enc->minBytesPerChar * 2;
+  tem = start + XmlNameLength(enc, start);
+  target = poolStoreString(&tempPool, enc, start, tem);
+  if (!target)
+    return 0;
+  poolFinish(&tempPool);
+  data = poolStoreString(&tempPool, enc,
+                        XmlSkipS(enc, tem),
+                        end - enc->minBytesPerChar*2);
+  if (!data)
+    return 0;
+  normalizeLines(data);
+  processingInstructionHandler(handlerArg, target, data);
+  poolClear(&tempPool);
+  return 1;
+}
+
+static int
+reportComment(XML_Parser parser, const ENCODING *enc,
+              const char *start, const char *end)
+{
+  XML_Char *data;
+  if (!commentHandler) {
+    if (defaultHandler)
+      reportDefault(parser, enc, start, end);
+    return 1;
+  }
+  data = poolStoreString(&tempPool,
+                         enc,
+                         start + enc->minBytesPerChar * 4,
+                         end - enc->minBytesPerChar * 3);
+  if (!data)
+    return 0;
+  normalizeLines(data);
+  commentHandler(handlerArg, data);
+  poolClear(&tempPool);
+  return 1;
+}
+
+static void
+reportDefault(XML_Parser parser, const ENCODING *enc,
+              const char *s, const char *end)
+{
+  if (MUST_CONVERT(enc, s)) {
+    const char **eventPP;
+    const char **eventEndPP;
+    if (enc == encoding) {
+      eventPP = &eventPtr;
+      eventEndPP = &eventEndPtr;
+    }
+    else {
+      eventPP = &(openInternalEntities->internalEventPtr);
+      eventEndPP = &(openInternalEntities->internalEventEndPtr);
+    }
+    do {
+      ICHAR *dataPtr = (ICHAR *)dataBuf;
+      XmlConvert(enc, &s, end, &dataPtr, (ICHAR *)dataBufEnd);
+      *eventEndPP = s;
+      defaultHandler(handlerArg, dataBuf, dataPtr - (ICHAR *)dataBuf);
+      *eventPP = s;
+    } while (s != end);
+  }
+  else
+    defaultHandler(handlerArg, (XML_Char *)s, (XML_Char *)end - (XML_Char *)s);
+}
+
+
+static int
+defineAttribute(ELEMENT_TYPE *type, ATTRIBUTE_ID *attId, XML_Bool isCdata,
+                XML_Bool isId, const XML_Char *value, XML_Parser parser)
+{
+  DEFAULT_ATTRIBUTE *att;
+  if (value || isId) {
+    /* The handling of default attributes gets messed up if we have
+       a default which duplicates a non-default. */
+    int i;
+    for (i = 0; i < type->nDefaultAtts; i++)
+      if (attId == type->defaultAtts[i].id)
+        return 1;
+    if (isId && !type->idAtt && !attId->xmlns)
+      type->idAtt = attId;
+  }
+  if (type->nDefaultAtts == type->allocDefaultAtts) {
+    if (type->allocDefaultAtts == 0) {
+      type->allocDefaultAtts = 8;
+      type->defaultAtts = (DEFAULT_ATTRIBUTE *)MALLOC(type->allocDefaultAtts 
+                            * sizeof(DEFAULT_ATTRIBUTE));
+      if (!type->defaultAtts)
+        return 0;
+    }
+    else {
+      DEFAULT_ATTRIBUTE *temp;
+      int count = type->allocDefaultAtts * 2;
+      temp = (DEFAULT_ATTRIBUTE *)
+        REALLOC(type->defaultAtts, (count * sizeof(DEFAULT_ATTRIBUTE)));
+      if (temp == NULL)
+        return 0;
+      type->allocDefaultAtts = count;
+      type->defaultAtts = temp;
+    }
+  }
+  att = type->defaultAtts + type->nDefaultAtts;
+  att->id = attId;
+  att->value = value;
+  att->isCdata = isCdata;
+  if (!isCdata)
+    attId->maybeTokenized = XML_TRUE;
+  type->nDefaultAtts += 1;
+  return 1;
+}
+
+static int
+setElementTypePrefix(XML_Parser parser, ELEMENT_TYPE *elementType)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  const XML_Char *name;
+  for (name = elementType->name; *name; name++) {
+    if (*name == XML_T(':')) {
+      PREFIX *prefix;
+      const XML_Char *s;
+      for (s = elementType->name; s != name; s++) {
+        if (!poolAppendChar(&dtd->pool, *s))
+          return 0;
+      }
+      if (!poolAppendChar(&dtd->pool, XML_T('\0')))
+        return 0;
+      prefix = (PREFIX *)lookup(&dtd->prefixes, poolStart(&dtd->pool),
+                                sizeof(PREFIX));
+      if (!prefix)
+        return 0;
+      if (prefix->name == poolStart(&dtd->pool))
+        poolFinish(&dtd->pool);
+      else
+        poolDiscard(&dtd->pool);
+      elementType->prefix = prefix;
+
+    }
+  }
+  return 1;
+}
+
+static ATTRIBUTE_ID *
+getAttributeId(XML_Parser parser, const ENCODING *enc,
+               const char *start, const char *end)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  ATTRIBUTE_ID *id;
+  const XML_Char *name;
+  if (!poolAppendChar(&dtd->pool, XML_T('\0')))
+    return NULL;
+  name = poolStoreString(&dtd->pool, enc, start, end);
+  if (!name)
+    return NULL;
+  ++name;
+  id = (ATTRIBUTE_ID *)lookup(&dtd->attributeIds, name, sizeof(ATTRIBUTE_ID));
+  if (!id)
+    return NULL;
+  if (id->name != name)
+    poolDiscard(&dtd->pool);
+  else {
+    poolFinish(&dtd->pool);
+    if (!ns)
+      ;
+    else if (name[0] == XML_T('x')
+        && name[1] == XML_T('m')
+        && name[2] == XML_T('l')
+        && name[3] == XML_T('n')
+        && name[4] == XML_T('s')
+        && (name[5] == XML_T('\0') || name[5] == XML_T(':'))) {
+      if (name[5] == XML_T('\0'))
+        id->prefix = &dtd->defaultPrefix;
+      else
+        id->prefix = (PREFIX *)lookup(&dtd->prefixes, name + 6, sizeof(PREFIX));
+      id->xmlns = XML_TRUE;
+    }
+    else {
+      int i;
+      for (i = 0; name[i]; i++) {
+        if (name[i] == XML_T(':')) {
+          int j;
+          for (j = 0; j < i; j++) {
+            if (!poolAppendChar(&dtd->pool, name[j]))
+              return NULL;
+          }
+          if (!poolAppendChar(&dtd->pool, XML_T('\0')))
+            return NULL;
+          id->prefix = (PREFIX *)lookup(&dtd->prefixes, poolStart(&dtd->pool),
+                                        sizeof(PREFIX));
+          if (id->prefix->name == poolStart(&dtd->pool))
+            poolFinish(&dtd->pool);
+          else
+            poolDiscard(&dtd->pool);
+          break;
+        }
+      }
+    }
+  }
+  return id;
+}
+
+#define CONTEXT_SEP XML_T('\f')
+
+static const XML_Char *
+getContext(XML_Parser parser)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  HASH_TABLE_ITER iter;
+  XML_Bool needSep = XML_FALSE;
+
+  if (dtd->defaultPrefix.binding) {
+    int i;
+    int len;
+    if (!poolAppendChar(&tempPool, XML_T('=')))
+      return NULL;
+    len = dtd->defaultPrefix.binding->uriLen;
+    if (namespaceSeparator != XML_T('\0'))
+      len--;
+    for (i = 0; i < len; i++)
+      if (!poolAppendChar(&tempPool, dtd->defaultPrefix.binding->uri[i]))
+        return NULL;
+    needSep = XML_TRUE;
+  }
+
+  hashTableIterInit(&iter, &(dtd->prefixes));
+  for (;;) {
+    int i;
+    int len;
+    const XML_Char *s;
+    PREFIX *prefix = (PREFIX *)hashTableIterNext(&iter);
+    if (!prefix)
+      break;
+    if (!prefix->binding)
+      continue;
+    if (needSep && !poolAppendChar(&tempPool, CONTEXT_SEP))
+      return NULL;
+    for (s = prefix->name; *s; s++)
+      if (!poolAppendChar(&tempPool, *s))
+        return NULL;
+    if (!poolAppendChar(&tempPool, XML_T('=')))
+      return NULL;
+    len = prefix->binding->uriLen;
+    if (namespaceSeparator != XML_T('\0'))
+      len--;
+    for (i = 0; i < len; i++)
+      if (!poolAppendChar(&tempPool, prefix->binding->uri[i]))
+        return NULL;
+    needSep = XML_TRUE;
+  }
+
+
+  hashTableIterInit(&iter, &(dtd->generalEntities));
+  for (;;) {
+    const XML_Char *s;
+    ENTITY *e = (ENTITY *)hashTableIterNext(&iter);
+    if (!e)
+      break;
+    if (!e->open)
+      continue;
+    if (needSep && !poolAppendChar(&tempPool, CONTEXT_SEP))
+      return NULL;
+    for (s = e->name; *s; s++)
+      if (!poolAppendChar(&tempPool, *s))
+        return 0;
+    needSep = XML_TRUE;
+  }
+
+  if (!poolAppendChar(&tempPool, XML_T('\0')))
+    return NULL;
+  return tempPool.start;
+}
+
+static XML_Bool
+setContext(XML_Parser parser, const XML_Char *context)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  const XML_Char *s = context;
+
+  while (*context != XML_T('\0')) {
+    if (*s == CONTEXT_SEP || *s == XML_T('\0')) {
+      ENTITY *e;
+      if (!poolAppendChar(&tempPool, XML_T('\0')))
+        return XML_FALSE;
+      e = (ENTITY *)lookup(&dtd->generalEntities, poolStart(&tempPool), 0);
+      if (e)
+        e->open = XML_TRUE;
+      if (*s != XML_T('\0'))
+        s++;
+      context = s;
+      poolDiscard(&tempPool);
+    }
+    else if (*s == XML_T('=')) {
+      PREFIX *prefix;
+      if (poolLength(&tempPool) == 0)
+        prefix = &dtd->defaultPrefix;
+      else {
+        if (!poolAppendChar(&tempPool, XML_T('\0')))
+          return XML_FALSE;
+        prefix = (PREFIX *)lookup(&dtd->prefixes, poolStart(&tempPool),
+                                  sizeof(PREFIX));
+        if (!prefix)
+          return XML_FALSE;
+        if (prefix->name == poolStart(&tempPool)) {
+          prefix->name = poolCopyString(&dtd->pool, prefix->name);
+          if (!prefix->name)
+            return XML_FALSE;
+        }
+        poolDiscard(&tempPool);
+      }
+      for (context = s + 1;
+           *context != CONTEXT_SEP && *context != XML_T('\0');
+           context++)
+        if (!poolAppendChar(&tempPool, *context))
+          return XML_FALSE;
+      if (!poolAppendChar(&tempPool, XML_T('\0')))
+        return XML_FALSE;
+      if (addBinding(parser, prefix, 0, poolStart(&tempPool),
+                     &inheritedBindings) != XML_ERROR_NONE)
+        return XML_FALSE;
+      poolDiscard(&tempPool);
+      if (*context != XML_T('\0'))
+        ++context;
+      s = context;
+    }
+    else {
+      if (!poolAppendChar(&tempPool, *s))
+        return XML_FALSE;
+      s++;
+    }
+  }
+  return XML_TRUE;
+}
+
+static void FASTCALL
+normalizePublicId(XML_Char *publicId)
+{
+  XML_Char *p = publicId;
+  XML_Char *s;
+  for (s = publicId; *s; s++) {
+    switch (*s) {
+    case 0x20:
+    case 0xD:
+    case 0xA:
+      if (p != publicId && p[-1] != 0x20)
+        *p++ = 0x20;
+      break;
+    default:
+      *p++ = *s;
+    }
+  }
+  if (p != publicId && p[-1] == 0x20)
+    --p;
+  *p = XML_T('\0');
+}
+
+static DTD *
+dtdCreate(const XML_Memory_Handling_Suite *ms)
+{
+  DTD *p = (DTD *)ms->malloc_fcn(sizeof(DTD));
+  if (p == NULL)
+    return p;
+  poolInit(&(p->pool), ms);
+#ifdef XML_DTD
+  poolInit(&(p->entityValuePool), ms);
+#endif /* XML_DTD */
+  hashTableInit(&(p->generalEntities), ms);
+  hashTableInit(&(p->elementTypes), ms);
+  hashTableInit(&(p->attributeIds), ms);
+  hashTableInit(&(p->prefixes), ms);
+#ifdef XML_DTD
+  p->paramEntityRead = XML_FALSE;
+  hashTableInit(&(p->paramEntities), ms);
+#endif /* XML_DTD */
+  p->defaultPrefix.name = NULL;
+  p->defaultPrefix.binding = NULL;
+
+  p->in_eldecl = XML_FALSE;
+  p->scaffIndex = NULL;
+  p->scaffold = NULL;
+  p->scaffLevel = 0;
+  p->scaffSize = 0;
+  p->scaffCount = 0;
+  p->contentStringLen = 0;
+
+  p->keepProcessing = XML_TRUE;
+  p->hasParamEntityRefs = XML_FALSE;
+  p->standalone = XML_FALSE;
+  return p;
+}
+
+static void
+dtdReset(DTD *p, const XML_Memory_Handling_Suite *ms)
+{
+  HASH_TABLE_ITER iter;
+  hashTableIterInit(&iter, &(p->elementTypes));
+  for (;;) {
+    ELEMENT_TYPE *e = (ELEMENT_TYPE *)hashTableIterNext(&iter);
+    if (!e)
+      break;
+    if (e->allocDefaultAtts != 0)
+      ms->free_fcn(e->defaultAtts);
+  }
+  hashTableClear(&(p->generalEntities));
+#ifdef XML_DTD
+  p->paramEntityRead = XML_FALSE;
+  hashTableClear(&(p->paramEntities));
+#endif /* XML_DTD */
+  hashTableClear(&(p->elementTypes));
+  hashTableClear(&(p->attributeIds));
+  hashTableClear(&(p->prefixes));
+  poolClear(&(p->pool));
+#ifdef XML_DTD
+  poolClear(&(p->entityValuePool));
+#endif /* XML_DTD */
+  p->defaultPrefix.name = NULL;
+  p->defaultPrefix.binding = NULL;
+
+  p->in_eldecl = XML_FALSE;
+  if (p->scaffIndex) {
+    ms->free_fcn(p->scaffIndex);
+    p->scaffIndex = NULL;
+  }
+  if (p->scaffold) {
+    ms->free_fcn(p->scaffold);
+    p->scaffold = NULL;
+  }
+  p->scaffLevel = 0;
+  p->scaffSize = 0;
+  p->scaffCount = 0;
+  p->contentStringLen = 0;
+
+  p->keepProcessing = XML_TRUE;
+  p->hasParamEntityRefs = XML_FALSE;
+  p->standalone = XML_FALSE;
+}
+
+static void
+dtdDestroy(DTD *p, XML_Bool isDocEntity, const XML_Memory_Handling_Suite *ms)
+{
+  HASH_TABLE_ITER iter;
+  hashTableIterInit(&iter, &(p->elementTypes));
+  for (;;) {
+    ELEMENT_TYPE *e = (ELEMENT_TYPE *)hashTableIterNext(&iter);
+    if (!e)
+      break;
+    if (e->allocDefaultAtts != 0)
+      ms->free_fcn(e->defaultAtts);
+  }
+  hashTableDestroy(&(p->generalEntities));
+#ifdef XML_DTD
+  hashTableDestroy(&(p->paramEntities));
+#endif /* XML_DTD */
+  hashTableDestroy(&(p->elementTypes));
+  hashTableDestroy(&(p->attributeIds));
+  hashTableDestroy(&(p->prefixes));
+  poolDestroy(&(p->pool));
+#ifdef XML_DTD
+  poolDestroy(&(p->entityValuePool));
+#endif /* XML_DTD */
+  if (isDocEntity) {
+    if (p->scaffIndex)
+      ms->free_fcn(p->scaffIndex);
+    if (p->scaffold)
+      ms->free_fcn(p->scaffold);
+  }
+  ms->free_fcn(p);
+}
+
+/* Do a deep copy of the DTD. Return 0 for out of memory, non-zero otherwise.
+   The new DTD has already been initialized.
+*/
+static int
+dtdCopy(DTD *newDtd, const DTD *oldDtd, const XML_Memory_Handling_Suite *ms)
+{
+  HASH_TABLE_ITER iter;
+
+  /* Copy the prefix table. */
+
+  hashTableIterInit(&iter, &(oldDtd->prefixes));
+  for (;;) {
+    const XML_Char *name;
+    const PREFIX *oldP = (PREFIX *)hashTableIterNext(&iter);
+    if (!oldP)
+      break;
+    name = poolCopyString(&(newDtd->pool), oldP->name);
+    if (!name)
+      return 0;
+    if (!lookup(&(newDtd->prefixes), name, sizeof(PREFIX)))
+      return 0;
+  }
+
+  hashTableIterInit(&iter, &(oldDtd->attributeIds));
+
+  /* Copy the attribute id table. */
+
+  for (;;) {
+    ATTRIBUTE_ID *newA;
+    const XML_Char *name;
+    const ATTRIBUTE_ID *oldA = (ATTRIBUTE_ID *)hashTableIterNext(&iter);
+
+    if (!oldA)
+      break;
+    /* Remember to allocate the scratch byte before the name. */
+    if (!poolAppendChar(&(newDtd->pool), XML_T('\0')))
+      return 0;
+    name = poolCopyString(&(newDtd->pool), oldA->name);
+    if (!name)
+      return 0;
+    ++name;
+    newA = (ATTRIBUTE_ID *)lookup(&(newDtd->attributeIds), name,
+                                  sizeof(ATTRIBUTE_ID));
+    if (!newA)
+      return 0;
+    newA->maybeTokenized = oldA->maybeTokenized;
+    if (oldA->prefix) {
+      newA->xmlns = oldA->xmlns;
+      if (oldA->prefix == &oldDtd->defaultPrefix)
+        newA->prefix = &newDtd->defaultPrefix;
+      else
+        newA->prefix = (PREFIX *)lookup(&(newDtd->prefixes),
+                                        oldA->prefix->name, 0);
+    }
+  }
+
+  /* Copy the element type table. */
+
+  hashTableIterInit(&iter, &(oldDtd->elementTypes));
+
+  for (;;) {
+    int i;
+    ELEMENT_TYPE *newE;
+    const XML_Char *name;
+    const ELEMENT_TYPE *oldE = (ELEMENT_TYPE *)hashTableIterNext(&iter);
+    if (!oldE)
+      break;
+    name = poolCopyString(&(newDtd->pool), oldE->name);
+    if (!name)
+      return 0;
+    newE = (ELEMENT_TYPE *)lookup(&(newDtd->elementTypes), name,
+                                  sizeof(ELEMENT_TYPE));
+    if (!newE)
+      return 0;
+    if (oldE->nDefaultAtts) {
+      newE->defaultAtts = (DEFAULT_ATTRIBUTE *)
+          ms->malloc_fcn(oldE->nDefaultAtts * sizeof(DEFAULT_ATTRIBUTE));
+      if (!newE->defaultAtts) {
+        ms->free_fcn(newE);
+        return 0;
+      }
+    }
+    if (oldE->idAtt)
+      newE->idAtt = (ATTRIBUTE_ID *)
+          lookup(&(newDtd->attributeIds), oldE->idAtt->name, 0);
+    newE->allocDefaultAtts = newE->nDefaultAtts = oldE->nDefaultAtts;
+    if (oldE->prefix)
+      newE->prefix = (PREFIX *)lookup(&(newDtd->prefixes),
+                                      oldE->prefix->name, 0);
+    for (i = 0; i < newE->nDefaultAtts; i++) {
+      newE->defaultAtts[i].id = (ATTRIBUTE_ID *)
+          lookup(&(newDtd->attributeIds), oldE->defaultAtts[i].id->name, 0);
+      newE->defaultAtts[i].isCdata = oldE->defaultAtts[i].isCdata;
+      if (oldE->defaultAtts[i].value) {
+        newE->defaultAtts[i].value
+            = poolCopyString(&(newDtd->pool), oldE->defaultAtts[i].value);
+        if (!newE->defaultAtts[i].value)
+          return 0;
+      }
+      else
+        newE->defaultAtts[i].value = NULL;
+    }
+  }
+
+  /* Copy the entity tables. */
+  if (!copyEntityTable(&(newDtd->generalEntities),
+                       &(newDtd->pool),
+                       &(oldDtd->generalEntities)))
+      return 0;
+
+#ifdef XML_DTD
+  if (!copyEntityTable(&(newDtd->paramEntities),
+                       &(newDtd->pool),
+                       &(oldDtd->paramEntities)))
+      return 0;
+  newDtd->paramEntityRead = oldDtd->paramEntityRead;
+#endif /* XML_DTD */
+
+  newDtd->keepProcessing = oldDtd->keepProcessing;
+  newDtd->hasParamEntityRefs = oldDtd->hasParamEntityRefs;
+  newDtd->standalone = oldDtd->standalone;
+
+  /* Don't want deep copying for scaffolding */
+  newDtd->in_eldecl = oldDtd->in_eldecl;
+  newDtd->scaffold = oldDtd->scaffold;
+  newDtd->contentStringLen = oldDtd->contentStringLen;
+  newDtd->scaffSize = oldDtd->scaffSize;
+  newDtd->scaffLevel = oldDtd->scaffLevel;
+  newDtd->scaffIndex = oldDtd->scaffIndex;
+
+  return 1;
+}  /* End dtdCopy */
+
+static int
+copyEntityTable(HASH_TABLE *newTable,
+                STRING_POOL *newPool,
+                const HASH_TABLE *oldTable)
+{
+  HASH_TABLE_ITER iter;
+  const XML_Char *cachedOldBase = NULL;
+  const XML_Char *cachedNewBase = NULL;
+
+  hashTableIterInit(&iter, oldTable);
+
+  for (;;) {
+    ENTITY *newE;
+    const XML_Char *name;
+    const ENTITY *oldE = (ENTITY *)hashTableIterNext(&iter);
+    if (!oldE)
+      break;
+    name = poolCopyString(newPool, oldE->name);
+    if (!name)
+      return 0;
+    newE = (ENTITY *)lookup(newTable, name, sizeof(ENTITY));
+    if (!newE)
+      return 0;
+    if (oldE->systemId) {
+      const XML_Char *tem = poolCopyString(newPool, oldE->systemId);
+      if (!tem)
+        return 0;
+      newE->systemId = tem;
+      if (oldE->base) {
+        if (oldE->base == cachedOldBase)
+          newE->base = cachedNewBase;
+        else {
+          cachedOldBase = oldE->base;
+          tem = poolCopyString(newPool, cachedOldBase);
+          if (!tem)
+            return 0;
+          cachedNewBase = newE->base = tem;
+        }
+      }
+      if (oldE->publicId) {
+        tem = poolCopyString(newPool, oldE->publicId);
+        if (!tem)
+          return 0;
+        newE->publicId = tem;
+      }
+    }
+    else {
+      const XML_Char *tem = poolCopyStringN(newPool, oldE->textPtr,
+                                            oldE->textLen);
+      if (!tem)
+        return 0;
+      newE->textPtr = tem;
+      newE->textLen = oldE->textLen;
+    }
+    if (oldE->notation) {
+      const XML_Char *tem = poolCopyString(newPool, oldE->notation);
+      if (!tem)
+        return 0;
+      newE->notation = tem;
+    }
+    newE->is_param = oldE->is_param;
+    newE->is_internal = oldE->is_internal;
+  }
+  return 1;
+}
+
+#define INIT_SIZE 64
+
+static int FASTCALL
+keyeq(KEY s1, KEY s2)
+{
+  for (; *s1 == *s2; s1++, s2++)
+    if (*s1 == 0)
+      return 1;
+  return 0;
+}
+
+static unsigned long FASTCALL
+hash(KEY s)
+{
+  unsigned long h = 0;
+  while (*s)
+    h = (h << 5) + h + (unsigned char)*s++;
+  return h;
+}
+
+static NAMED *
+lookup(HASH_TABLE *table, KEY name, size_t createSize)
+{
+  size_t i;
+  if (table->size == 0) {
+    size_t tsize;
+
+    if (!createSize)
+      return NULL;
+    tsize = INIT_SIZE * sizeof(NAMED *);
+    table->v = (NAMED **)table->mem->malloc_fcn(tsize);
+    if (!table->v)
+      return NULL;
+    memset(table->v, 0, tsize);
+    table->size = INIT_SIZE;
+    table->usedLim = INIT_SIZE / 2;
+    i = hash(name) & (table->size - 1);
+  }
+  else {
+    unsigned long h = hash(name);
+    for (i = h & (table->size - 1);
+         table->v[i];
+         i == 0 ? i = table->size - 1 : --i) {
+      if (keyeq(name, table->v[i]->name))
+        return table->v[i];
+    }
+    if (!createSize)
+      return NULL;
+    if (table->used == table->usedLim) {
+      /* check for overflow */
+      size_t newSize = table->size * 2;
+      size_t tsize = newSize * sizeof(NAMED *);
+      NAMED **newV = (NAMED **)table->mem->malloc_fcn(tsize);
+      if (!newV)
+        return NULL;
+      memset(newV, 0, tsize);
+      for (i = 0; i < table->size; i++)
+        if (table->v[i]) {
+          size_t j;
+          for (j = hash(table->v[i]->name) & (newSize - 1);
+               newV[j];
+               j == 0 ? j = newSize - 1 : --j)
+            ;
+          newV[j] = table->v[i];
+        }
+      table->mem->free_fcn(table->v);
+      table->v = newV;
+      table->size = newSize;
+      table->usedLim = newSize/2;
+      for (i = h & (table->size - 1);
+           table->v[i];
+           i == 0 ? i = table->size - 1 : --i)
+        ;
+    }
+  }
+  table->v[i] = (NAMED *)table->mem->malloc_fcn(createSize);
+  if (!table->v[i])
+    return NULL;
+  memset(table->v[i], 0, createSize);
+  table->v[i]->name = name;
+  (table->used)++;
+  return table->v[i];
+}
+
+static void FASTCALL
+hashTableClear(HASH_TABLE *table)
+{
+  size_t i;
+  for (i = 0; i < table->size; i++) {
+    NAMED *p = table->v[i];
+    if (p) {
+      table->mem->free_fcn(p);
+      table->v[i] = NULL;
+    }
+  }
+  table->usedLim = table->size / 2;
+  table->used = 0;
+}
+
+static void FASTCALL
+hashTableDestroy(HASH_TABLE *table)
+{
+  size_t i;
+  for (i = 0; i < table->size; i++) {
+    NAMED *p = table->v[i];
+    if (p)
+      table->mem->free_fcn(p);
+  }
+  if (table->v)
+    table->mem->free_fcn(table->v);
+}
+
+static void FASTCALL
+hashTableInit(HASH_TABLE *p, const XML_Memory_Handling_Suite *ms)
+{
+  p->size = 0;
+  p->usedLim = 0;
+  p->used = 0;
+  p->v = NULL;
+  p->mem = ms;
+}
+
+static void FASTCALL
+hashTableIterInit(HASH_TABLE_ITER *iter, const HASH_TABLE *table)
+{
+  iter->p = table->v;
+  iter->end = iter->p + table->size;
+}
+
+static NAMED * FASTCALL
+hashTableIterNext(HASH_TABLE_ITER *iter)
+{
+  while (iter->p != iter->end) {
+    NAMED *tem = *(iter->p)++;
+    if (tem)
+      return tem;
+  }
+  return NULL;
+}
+
+static void FASTCALL
+poolInit(STRING_POOL *pool, const XML_Memory_Handling_Suite *ms)
+{
+  pool->blocks = NULL;
+  pool->freeBlocks = NULL;
+  pool->start = NULL;
+  pool->ptr = NULL;
+  pool->end = NULL;
+  pool->mem = ms;
+}
+
+static void FASTCALL
+poolClear(STRING_POOL *pool)
+{
+  if (!pool->freeBlocks)
+    pool->freeBlocks = pool->blocks;
+  else {
+    BLOCK *p = pool->blocks;
+    while (p) {
+      BLOCK *tem = p->next;
+      p->next = pool->freeBlocks;
+      pool->freeBlocks = p;
+      p = tem;
+    }
+  }
+  pool->blocks = NULL;
+  pool->start = NULL;
+  pool->ptr = NULL;
+  pool->end = NULL;
+}
+
+static void FASTCALL
+poolDestroy(STRING_POOL *pool)
+{
+  BLOCK *p = pool->blocks;
+  while (p) {
+    BLOCK *tem = p->next;
+    pool->mem->free_fcn(p);
+    p = tem;
+  }
+  p = pool->freeBlocks;
+  while (p) {
+    BLOCK *tem = p->next;
+    pool->mem->free_fcn(p);
+    p = tem;
+  }
+}
+
+static XML_Char *
+poolAppend(STRING_POOL *pool, const ENCODING *enc,
+           const char *ptr, const char *end)
+{
+  if (!pool->ptr && !poolGrow(pool))
+    return NULL;
+  for (;;) {
+    XmlConvert(enc, &ptr, end, (ICHAR **)&(pool->ptr), (ICHAR *)pool->end);
+    if (ptr == end)
+      break;
+    if (!poolGrow(pool))
+      return NULL;
+  }
+  return pool->start;
+}
+
+static const XML_Char * FASTCALL
+poolCopyString(STRING_POOL *pool, const XML_Char *s)
+{
+  do {
+    if (!poolAppendChar(pool, *s))
+      return NULL;
+  } while (*s++);
+  s = pool->start;
+  poolFinish(pool);
+  return s;
+}
+
+static const XML_Char *
+poolCopyStringN(STRING_POOL *pool, const XML_Char *s, int n)
+{
+  if (!pool->ptr && !poolGrow(pool))
+    return NULL;
+  for (; n > 0; --n, s++) {
+    if (!poolAppendChar(pool, *s))
+      return NULL;
+  }
+  s = pool->start;
+  poolFinish(pool);
+  return s;
+}
+
+static const XML_Char * FASTCALL
+poolAppendString(STRING_POOL *pool, const XML_Char *s)
+{
+  while (*s) {
+    if (!poolAppendChar(pool, *s))
+      return NULL;
+    s++;
+  }
+  return pool->start;
+}
+
+static XML_Char *
+poolStoreString(STRING_POOL *pool, const ENCODING *enc,
+                const char *ptr, const char *end)
+{
+  if (!poolAppend(pool, enc, ptr, end))
+    return NULL;
+  if (pool->ptr == pool->end && !poolGrow(pool))
+    return NULL;
+  *(pool->ptr)++ = 0;
+  return pool->start;
+}
+
+static XML_Bool FASTCALL
+poolGrow(STRING_POOL *pool)
+{
+  if (pool->freeBlocks) {
+    if (pool->start == 0) {
+      pool->blocks = pool->freeBlocks;
+      pool->freeBlocks = pool->freeBlocks->next;
+      pool->blocks->next = NULL;
+      pool->start = pool->blocks->s;
+      pool->end = pool->start + pool->blocks->size;
+      pool->ptr = pool->start;
+      return XML_TRUE;
+    }
+    if (pool->end - pool->start < pool->freeBlocks->size) {
+      BLOCK *tem = pool->freeBlocks->next;
+      pool->freeBlocks->next = pool->blocks;
+      pool->blocks = pool->freeBlocks;
+      pool->freeBlocks = tem;
+      memcpy(pool->blocks->s, pool->start,
+             (pool->end - pool->start) * sizeof(XML_Char));
+      pool->ptr = pool->blocks->s + (pool->ptr - pool->start);
+      pool->start = pool->blocks->s;
+      pool->end = pool->start + pool->blocks->size;
+      return XML_TRUE;
+    }
+  }
+  if (pool->blocks && pool->start == pool->blocks->s) {
+    int blockSize = (pool->end - pool->start)*2;
+    pool->blocks = (BLOCK *)
+      pool->mem->realloc_fcn(pool->blocks,
+			     (offsetof(BLOCK, s)
+			      + blockSize * sizeof(XML_Char)));
+    if (pool->blocks == NULL)
+      return XML_FALSE;
+    pool->blocks->size = blockSize;
+    pool->ptr = pool->blocks->s + (pool->ptr - pool->start);
+    pool->start = pool->blocks->s;
+    pool->end = pool->start + blockSize;
+  }
+  else {
+    BLOCK *tem;
+    int blockSize = pool->end - pool->start;
+    if (blockSize < INIT_BLOCK_SIZE)
+      blockSize = INIT_BLOCK_SIZE;
+    else
+      blockSize *= 2;
+    tem = (BLOCK *)pool->mem->malloc_fcn(offsetof(BLOCK, s)
+					+ blockSize * sizeof(XML_Char));
+    if (!tem)
+      return XML_FALSE;
+    tem->size = blockSize;
+    tem->next = pool->blocks;
+    pool->blocks = tem;
+    if (pool->ptr != pool->start)
+      memcpy(tem->s, pool->start,
+             (pool->ptr - pool->start) * sizeof(XML_Char));
+    pool->ptr = tem->s + (pool->ptr - pool->start);
+    pool->start = tem->s;
+    pool->end = tem->s + blockSize;
+  }
+  return XML_TRUE;
+}
+
+static int FASTCALL
+nextScaffoldPart(XML_Parser parser)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  CONTENT_SCAFFOLD * me;
+  int next;
+
+  if (!dtd->scaffIndex) {
+    dtd->scaffIndex = (int *)MALLOC(groupSize * sizeof(int));
+    if (!dtd->scaffIndex)
+      return -1;
+    dtd->scaffIndex[0] = 0;
+  }
+
+  if (dtd->scaffCount >= dtd->scaffSize) {
+    CONTENT_SCAFFOLD *temp;
+    if (dtd->scaffold) {
+      temp = (CONTENT_SCAFFOLD *)
+        REALLOC(dtd->scaffold, dtd->scaffSize * 2 * sizeof(CONTENT_SCAFFOLD));
+      if (temp == NULL)
+        return -1;
+      dtd->scaffSize *= 2;
+    }
+    else {
+      temp = (CONTENT_SCAFFOLD *)MALLOC(INIT_SCAFFOLD_ELEMENTS
+                                        * sizeof(CONTENT_SCAFFOLD));
+      if (temp == NULL)
+        return -1;
+      dtd->scaffSize = INIT_SCAFFOLD_ELEMENTS;
+    }
+    dtd->scaffold = temp;
+  }
+  next = dtd->scaffCount++;
+  me = &dtd->scaffold[next];
+  if (dtd->scaffLevel) {
+    CONTENT_SCAFFOLD *parent = &dtd->scaffold[dtd->scaffIndex[dtd->scaffLevel-1]];
+    if (parent->lastchild) {
+      dtd->scaffold[parent->lastchild].nextsib = next;
+    }
+    if (!parent->childcnt)
+      parent->firstchild = next;
+    parent->lastchild = next;
+    parent->childcnt++;
+  }
+  me->firstchild = me->lastchild = me->childcnt = me->nextsib = 0;
+  return next;
+}
+
+static void
+build_node(XML_Parser parser,
+           int src_node,
+           XML_Content *dest,
+           XML_Content **contpos,
+           XML_Char **strpos)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  dest->type = dtd->scaffold[src_node].type;
+  dest->quant = dtd->scaffold[src_node].quant;
+  if (dest->type == XML_CTYPE_NAME) {
+    const XML_Char *src;
+    dest->name = *strpos;
+    src = dtd->scaffold[src_node].name;
+    for (;;) {
+      *(*strpos)++ = *src;
+      if (!*src)
+        break;
+      src++;
+    }
+    dest->numchildren = 0;
+    dest->children = NULL;
+  }
+  else {
+    unsigned int i;
+    int cn;
+    dest->numchildren = dtd->scaffold[src_node].childcnt;
+    dest->children = *contpos;
+    *contpos += dest->numchildren;
+    for (i = 0, cn = dtd->scaffold[src_node].firstchild;
+         i < dest->numchildren;
+         i++, cn = dtd->scaffold[cn].nextsib) {
+      build_node(parser, cn, &(dest->children[i]), contpos, strpos);
+    }
+    dest->name = NULL;
+  }
+}
+
+static XML_Content *
+build_model (XML_Parser parser)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  XML_Content *ret;
+  XML_Content *cpos;
+  XML_Char * str;
+  int allocsize = (dtd->scaffCount * sizeof(XML_Content)
+                   + (dtd->contentStringLen * sizeof(XML_Char)));
+
+  ret = (XML_Content *)MALLOC(allocsize);
+  if (!ret)
+    return NULL;
+
+  str =  (XML_Char *) (&ret[dtd->scaffCount]);
+  cpos = &ret[1];
+
+  build_node(parser, 0, ret, &cpos, &str);
+  return ret;
+}
+
+static ELEMENT_TYPE *
+getElementType(XML_Parser parser,
+               const ENCODING *enc,
+               const char *ptr,
+               const char *end)
+{
+  DTD * const dtd = _dtd;  /* save one level of indirection */
+  const XML_Char *name = poolStoreString(&dtd->pool, enc, ptr, end);
+  ELEMENT_TYPE *ret;
+
+  if (!name)
+    return NULL;
+  ret = (ELEMENT_TYPE *) lookup(&dtd->elementTypes, name, sizeof(ELEMENT_TYPE));
+  if (!ret)
+    return NULL;
+  if (ret->name != name)
+    poolDiscard(&dtd->pool);
+  else {
+    poolFinish(&dtd->pool);
+    if (!setElementTypePrefix(parser, ret))
+      return NULL;
+  }
+  return ret;
+}
diff --git a/lib/libexpat/lib/xmlrole.c b/lib/libexpat/lib/xmlrole.c
new file mode 100644
index 00000000000..8ef185d54e3
--- /dev/null
+++ b/lib/libexpat/lib/xmlrole.c
@@ -0,0 +1,1321 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+#ifdef COMPILED_FROM_DSP
+#include "winconfig.h"
+#elif defined(MACOS_CLASSIC)
+#include "macconfig.h"
+#else
+#include <expat_config.h>
+#endif /* ndef COMPILED_FROM_DSP */
+
+#include "internal.h"
+#include "xmlrole.h"
+#include "ascii.h"
+
+/* Doesn't check:
+
+ that ,| are not mixed in a model group
+ content of literals
+
+*/
+
+static const char KW_ANY[] = {
+    ASCII_A, ASCII_N, ASCII_Y, '\0' };
+static const char KW_ATTLIST[] = {
+    ASCII_A, ASCII_T, ASCII_T, ASCII_L, ASCII_I, ASCII_S, ASCII_T, '\0' };
+static const char KW_CDATA[] = {
+    ASCII_C, ASCII_D, ASCII_A, ASCII_T, ASCII_A, '\0' };
+static const char KW_DOCTYPE[] = {
+    ASCII_D, ASCII_O, ASCII_C, ASCII_T, ASCII_Y, ASCII_P, ASCII_E, '\0' };
+static const char KW_ELEMENT[] = {
+    ASCII_E, ASCII_L, ASCII_E, ASCII_M, ASCII_E, ASCII_N, ASCII_T, '\0' };
+static const char KW_EMPTY[] = {
+    ASCII_E, ASCII_M, ASCII_P, ASCII_T, ASCII_Y, '\0' };
+static const char KW_ENTITIES[] = {
+    ASCII_E, ASCII_N, ASCII_T, ASCII_I, ASCII_T, ASCII_I, ASCII_E, ASCII_S,
+    '\0' };
+static const char KW_ENTITY[] = {
+    ASCII_E, ASCII_N, ASCII_T, ASCII_I, ASCII_T, ASCII_Y, '\0' };
+static const char KW_FIXED[] = {
+    ASCII_F, ASCII_I, ASCII_X, ASCII_E, ASCII_D, '\0' };
+static const char KW_ID[] = {
+    ASCII_I, ASCII_D, '\0' };
+static const char KW_IDREF[] = {
+    ASCII_I, ASCII_D, ASCII_R, ASCII_E, ASCII_F, '\0' };
+static const char KW_IDREFS[] = {
+    ASCII_I, ASCII_D, ASCII_R, ASCII_E, ASCII_F, ASCII_S, '\0' };
+static const char KW_IGNORE[] = {
+    ASCII_I, ASCII_G, ASCII_N, ASCII_O, ASCII_R, ASCII_E, '\0' };
+static const char KW_IMPLIED[] = {
+    ASCII_I, ASCII_M, ASCII_P, ASCII_L, ASCII_I, ASCII_E, ASCII_D, '\0' };
+static const char KW_INCLUDE[] = {
+    ASCII_I, ASCII_N, ASCII_C, ASCII_L, ASCII_U, ASCII_D, ASCII_E, '\0' };
+static const char KW_NDATA[] = {
+    ASCII_N, ASCII_D, ASCII_A, ASCII_T, ASCII_A, '\0' };
+static const char KW_NMTOKEN[] = {
+    ASCII_N, ASCII_M, ASCII_T, ASCII_O, ASCII_K, ASCII_E, ASCII_N, '\0' };
+static const char KW_NMTOKENS[] = {
+    ASCII_N, ASCII_M, ASCII_T, ASCII_O, ASCII_K, ASCII_E, ASCII_N, ASCII_S,
+    '\0' };
+static const char KW_NOTATION[] =
+    { ASCII_N, ASCII_O, ASCII_T, ASCII_A, ASCII_T, ASCII_I, ASCII_O, ASCII_N,
+      '\0' };
+static const char KW_PCDATA[] = {
+    ASCII_P, ASCII_C, ASCII_D, ASCII_A, ASCII_T, ASCII_A, '\0' };
+static const char KW_PUBLIC[] = {
+    ASCII_P, ASCII_U, ASCII_B, ASCII_L, ASCII_I, ASCII_C, '\0' };
+static const char KW_REQUIRED[] = {
+    ASCII_R, ASCII_E, ASCII_Q, ASCII_U, ASCII_I, ASCII_R, ASCII_E, ASCII_D,
+    '\0' };
+static const char KW_SYSTEM[] = {
+    ASCII_S, ASCII_Y, ASCII_S, ASCII_T, ASCII_E, ASCII_M, '\0' };
+
+#ifndef MIN_BYTES_PER_CHAR
+#define MIN_BYTES_PER_CHAR(enc) ((enc)->minBytesPerChar)
+#endif
+
+#ifdef XML_DTD
+#define setTopLevel(state) \
+  ((state)->handler = ((state)->documentEntity \
+                       ? internalSubset \
+                       : externalSubset1))
+#else /* not XML_DTD */
+#define setTopLevel(state) ((state)->handler = internalSubset)
+#endif /* not XML_DTD */
+
+typedef int PTRCALL PROLOG_HANDLER(PROLOG_STATE *state,
+                                   int tok,
+                                   const char *ptr,
+                                   const char *end,
+                                   const ENCODING *enc);
+
+static PROLOG_HANDLER
+  prolog0, prolog1, prolog2,
+  doctype0, doctype1, doctype2, doctype3, doctype4, doctype5,
+  internalSubset,
+  entity0, entity1, entity2, entity3, entity4, entity5, entity6,
+  entity7, entity8, entity9, entity10,
+  notation0, notation1, notation2, notation3, notation4,
+  attlist0, attlist1, attlist2, attlist3, attlist4, attlist5, attlist6,
+  attlist7, attlist8, attlist9,
+  element0, element1, element2, element3, element4, element5, element6,
+  element7,
+#ifdef XML_DTD
+  externalSubset0, externalSubset1,
+  condSect0, condSect1, condSect2,
+#endif /* XML_DTD */
+  declClose,
+  error;
+
+static int FASTCALL common(PROLOG_STATE *state, int tok);
+
+static int PTRCALL
+prolog0(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    state->handler = prolog1;
+    return XML_ROLE_NONE;
+  case XML_TOK_XML_DECL:
+    state->handler = prolog1;
+    return XML_ROLE_XML_DECL;
+  case XML_TOK_PI:
+    state->handler = prolog1;
+    return XML_ROLE_PI;
+  case XML_TOK_COMMENT:
+    state->handler = prolog1;
+    return XML_ROLE_COMMENT;
+  case XML_TOK_BOM:
+    return XML_ROLE_NONE;
+  case XML_TOK_DECL_OPEN:
+    if (!XmlNameMatchesAscii(enc,
+                             ptr + 2 * MIN_BYTES_PER_CHAR(enc),
+                             end,
+                             KW_DOCTYPE))
+      break;
+    state->handler = doctype0;
+    return XML_ROLE_DOCTYPE_NONE;
+  case XML_TOK_INSTANCE_START:
+    state->handler = error;
+    return XML_ROLE_INSTANCE_START;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+prolog1(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NONE;
+  case XML_TOK_PI:
+    return XML_ROLE_PI;
+  case XML_TOK_COMMENT:
+    return XML_ROLE_COMMENT;
+  case XML_TOK_BOM:
+    return XML_ROLE_NONE;
+  case XML_TOK_DECL_OPEN:
+    if (!XmlNameMatchesAscii(enc,
+                             ptr + 2 * MIN_BYTES_PER_CHAR(enc),
+                             end,
+                             KW_DOCTYPE))
+      break;
+    state->handler = doctype0;
+    return XML_ROLE_DOCTYPE_NONE;
+  case XML_TOK_INSTANCE_START:
+    state->handler = error;
+    return XML_ROLE_INSTANCE_START;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+prolog2(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NONE;
+  case XML_TOK_PI:
+    return XML_ROLE_PI;
+  case XML_TOK_COMMENT:
+    return XML_ROLE_COMMENT;
+  case XML_TOK_INSTANCE_START:
+    state->handler = error;
+    return XML_ROLE_INSTANCE_START;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+doctype0(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_DOCTYPE_NONE;
+  case XML_TOK_NAME:
+  case XML_TOK_PREFIXED_NAME:
+    state->handler = doctype1;
+    return XML_ROLE_DOCTYPE_NAME;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+doctype1(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_DOCTYPE_NONE;
+  case XML_TOK_OPEN_BRACKET:
+    state->handler = internalSubset;
+    return XML_ROLE_DOCTYPE_INTERNAL_SUBSET;
+  case XML_TOK_DECL_CLOSE:
+    state->handler = prolog2;
+    return XML_ROLE_DOCTYPE_CLOSE;
+  case XML_TOK_NAME:
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_SYSTEM)) {
+      state->handler = doctype3;
+      return XML_ROLE_DOCTYPE_NONE;
+    }
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_PUBLIC)) {
+      state->handler = doctype2;
+      return XML_ROLE_DOCTYPE_NONE;
+    }
+    break;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+doctype2(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_DOCTYPE_NONE;
+  case XML_TOK_LITERAL:
+    state->handler = doctype3;
+    return XML_ROLE_DOCTYPE_PUBLIC_ID;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+doctype3(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_DOCTYPE_NONE;
+  case XML_TOK_LITERAL:
+    state->handler = doctype4;
+    return XML_ROLE_DOCTYPE_SYSTEM_ID;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+doctype4(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_DOCTYPE_NONE;
+  case XML_TOK_OPEN_BRACKET:
+    state->handler = internalSubset;
+    return XML_ROLE_DOCTYPE_INTERNAL_SUBSET;
+  case XML_TOK_DECL_CLOSE:
+    state->handler = prolog2;
+    return XML_ROLE_DOCTYPE_CLOSE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+doctype5(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_DOCTYPE_NONE;
+  case XML_TOK_DECL_CLOSE:
+    state->handler = prolog2;
+    return XML_ROLE_DOCTYPE_CLOSE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+internalSubset(PROLOG_STATE *state,
+               int tok,
+               const char *ptr,
+               const char *end,
+               const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NONE;
+  case XML_TOK_DECL_OPEN:
+    if (XmlNameMatchesAscii(enc,
+                            ptr + 2 * MIN_BYTES_PER_CHAR(enc),
+                            end,
+                            KW_ENTITY)) {
+      state->handler = entity0;
+      return XML_ROLE_ENTITY_NONE;
+    }
+    if (XmlNameMatchesAscii(enc,
+                            ptr + 2 * MIN_BYTES_PER_CHAR(enc),
+                            end,
+                            KW_ATTLIST)) {
+      state->handler = attlist0;
+      return XML_ROLE_ATTLIST_NONE;
+    }
+    if (XmlNameMatchesAscii(enc,
+                            ptr + 2 * MIN_BYTES_PER_CHAR(enc),
+                            end,
+                            KW_ELEMENT)) {
+      state->handler = element0;
+      return XML_ROLE_ELEMENT_NONE;
+    }
+    if (XmlNameMatchesAscii(enc,
+                            ptr + 2 * MIN_BYTES_PER_CHAR(enc),
+                            end,
+                            KW_NOTATION)) {
+      state->handler = notation0;
+      return XML_ROLE_NOTATION_NONE;
+    }
+    break;
+  case XML_TOK_PI:
+    return XML_ROLE_PI;
+  case XML_TOK_COMMENT:
+    return XML_ROLE_COMMENT;
+  case XML_TOK_PARAM_ENTITY_REF:
+    return XML_ROLE_PARAM_ENTITY_REF;
+  case XML_TOK_CLOSE_BRACKET:
+    state->handler = doctype5;
+    return XML_ROLE_DOCTYPE_NONE;
+  }
+  return common(state, tok);
+}
+
+#ifdef XML_DTD
+
+static int PTRCALL
+externalSubset0(PROLOG_STATE *state,
+                int tok,
+                const char *ptr,
+                const char *end,
+                const ENCODING *enc)
+{
+  state->handler = externalSubset1;
+  if (tok == XML_TOK_XML_DECL)
+    return XML_ROLE_TEXT_DECL;
+  return externalSubset1(state, tok, ptr, end, enc);
+}
+
+static int PTRCALL
+externalSubset1(PROLOG_STATE *state,
+                int tok,
+                const char *ptr,
+                const char *end,
+                const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_COND_SECT_OPEN:
+    state->handler = condSect0;
+    return XML_ROLE_NONE;
+  case XML_TOK_COND_SECT_CLOSE:
+    if (state->includeLevel == 0)
+      break;
+    state->includeLevel -= 1;
+    return XML_ROLE_NONE;
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NONE;
+  case XML_TOK_CLOSE_BRACKET:
+    break;
+  case XML_TOK_NONE:
+    if (state->includeLevel)
+      break;
+    return XML_ROLE_NONE;
+  default:
+    return internalSubset(state, tok, ptr, end, enc);
+  }
+  return common(state, tok);
+}
+
+#endif /* XML_DTD */
+
+static int PTRCALL
+entity0(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_PERCENT:
+    state->handler = entity1;
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_NAME:
+    state->handler = entity2;
+    return XML_ROLE_GENERAL_ENTITY_NAME;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+entity1(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_NAME:
+    state->handler = entity7;
+    return XML_ROLE_PARAM_ENTITY_NAME;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+entity2(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_NAME:
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_SYSTEM)) {
+      state->handler = entity4;
+      return XML_ROLE_ENTITY_NONE;
+    }
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_PUBLIC)) {
+      state->handler = entity3;
+      return XML_ROLE_ENTITY_NONE;
+    }
+    break;
+  case XML_TOK_LITERAL:
+    state->handler = declClose;
+    state->role_none = XML_ROLE_ENTITY_NONE;
+    return XML_ROLE_ENTITY_VALUE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+entity3(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_LITERAL:
+    state->handler = entity4;
+    return XML_ROLE_ENTITY_PUBLIC_ID;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+entity4(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_LITERAL:
+    state->handler = entity5;
+    return XML_ROLE_ENTITY_SYSTEM_ID;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+entity5(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_DECL_CLOSE:
+    setTopLevel(state);
+    return XML_ROLE_ENTITY_COMPLETE;
+  case XML_TOK_NAME:
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_NDATA)) {
+      state->handler = entity6;
+      return XML_ROLE_ENTITY_NONE;
+    }
+    break;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+entity6(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_NAME:
+    state->handler = declClose;
+    state->role_none = XML_ROLE_ENTITY_NONE;
+    return XML_ROLE_ENTITY_NOTATION_NAME;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+entity7(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_NAME:
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_SYSTEM)) {
+      state->handler = entity9;
+      return XML_ROLE_ENTITY_NONE;
+    }
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_PUBLIC)) {
+      state->handler = entity8;
+      return XML_ROLE_ENTITY_NONE;
+    }
+    break;
+  case XML_TOK_LITERAL:
+    state->handler = declClose;
+    state->role_none = XML_ROLE_ENTITY_NONE;
+    return XML_ROLE_ENTITY_VALUE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+entity8(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_LITERAL:
+    state->handler = entity9;
+    return XML_ROLE_ENTITY_PUBLIC_ID;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+entity9(PROLOG_STATE *state,
+        int tok,
+        const char *ptr,
+        const char *end,
+        const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_LITERAL:
+    state->handler = entity10;
+    return XML_ROLE_ENTITY_SYSTEM_ID;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+entity10(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ENTITY_NONE;
+  case XML_TOK_DECL_CLOSE:
+    setTopLevel(state);
+    return XML_ROLE_ENTITY_COMPLETE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+notation0(PROLOG_STATE *state,
+          int tok,
+          const char *ptr,
+          const char *end,
+          const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NOTATION_NONE;
+  case XML_TOK_NAME:
+    state->handler = notation1;
+    return XML_ROLE_NOTATION_NAME;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+notation1(PROLOG_STATE *state,
+          int tok,
+          const char *ptr,
+          const char *end,
+          const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NOTATION_NONE;
+  case XML_TOK_NAME:
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_SYSTEM)) {
+      state->handler = notation3;
+      return XML_ROLE_NOTATION_NONE;
+    }
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_PUBLIC)) {
+      state->handler = notation2;
+      return XML_ROLE_NOTATION_NONE;
+    }
+    break;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+notation2(PROLOG_STATE *state,
+          int tok,
+          const char *ptr,
+          const char *end,
+          const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NOTATION_NONE;
+  case XML_TOK_LITERAL:
+    state->handler = notation4;
+    return XML_ROLE_NOTATION_PUBLIC_ID;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+notation3(PROLOG_STATE *state,
+          int tok,
+          const char *ptr,
+          const char *end,
+          const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NOTATION_NONE;
+  case XML_TOK_LITERAL:
+    state->handler = declClose;
+    state->role_none = XML_ROLE_NOTATION_NONE;
+    return XML_ROLE_NOTATION_SYSTEM_ID;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+notation4(PROLOG_STATE *state,
+          int tok,
+          const char *ptr,
+          const char *end,
+          const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NOTATION_NONE;
+  case XML_TOK_LITERAL:
+    state->handler = declClose;
+    state->role_none = XML_ROLE_NOTATION_NONE;
+    return XML_ROLE_NOTATION_SYSTEM_ID;
+  case XML_TOK_DECL_CLOSE:
+    setTopLevel(state);
+    return XML_ROLE_NOTATION_NO_SYSTEM_ID;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+attlist0(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_NAME:
+  case XML_TOK_PREFIXED_NAME:
+    state->handler = attlist1;
+    return XML_ROLE_ATTLIST_ELEMENT_NAME;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+attlist1(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_DECL_CLOSE:
+    setTopLevel(state);
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_NAME:
+  case XML_TOK_PREFIXED_NAME:
+    state->handler = attlist2;
+    return XML_ROLE_ATTRIBUTE_NAME;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+attlist2(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_NAME:
+    {
+      static const char *types[] = {
+        KW_CDATA,
+        KW_ID,
+        KW_IDREF,
+        KW_IDREFS,
+        KW_ENTITY,
+        KW_ENTITIES,
+        KW_NMTOKEN,
+        KW_NMTOKENS,
+      };
+      int i;
+      for (i = 0; i < (int)(sizeof(types)/sizeof(types[0])); i++)
+        if (XmlNameMatchesAscii(enc, ptr, end, types[i])) {
+          state->handler = attlist8;
+          return XML_ROLE_ATTRIBUTE_TYPE_CDATA + i;
+        }
+    }
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_NOTATION)) {
+      state->handler = attlist5;
+      return XML_ROLE_ATTLIST_NONE;
+    }
+    break;
+  case XML_TOK_OPEN_PAREN:
+    state->handler = attlist3;
+    return XML_ROLE_ATTLIST_NONE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+attlist3(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_NMTOKEN:
+  case XML_TOK_NAME:
+  case XML_TOK_PREFIXED_NAME:
+    state->handler = attlist4;
+    return XML_ROLE_ATTRIBUTE_ENUM_VALUE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+attlist4(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_CLOSE_PAREN:
+    state->handler = attlist8;
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_OR:
+    state->handler = attlist3;
+    return XML_ROLE_ATTLIST_NONE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+attlist5(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_OPEN_PAREN:
+    state->handler = attlist6;
+    return XML_ROLE_ATTLIST_NONE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+attlist6(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_NAME:
+    state->handler = attlist7;
+    return XML_ROLE_ATTRIBUTE_NOTATION_VALUE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+attlist7(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_CLOSE_PAREN:
+    state->handler = attlist8;
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_OR:
+    state->handler = attlist6;
+    return XML_ROLE_ATTLIST_NONE;
+  }
+  return common(state, tok);
+}
+
+/* default value */
+static int PTRCALL
+attlist8(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_POUND_NAME:
+    if (XmlNameMatchesAscii(enc,
+                            ptr + MIN_BYTES_PER_CHAR(enc),
+                            end,
+                            KW_IMPLIED)) {
+      state->handler = attlist1;
+      return XML_ROLE_IMPLIED_ATTRIBUTE_VALUE;
+    }
+    if (XmlNameMatchesAscii(enc,
+                            ptr + MIN_BYTES_PER_CHAR(enc),
+                            end,
+                            KW_REQUIRED)) {
+      state->handler = attlist1;
+      return XML_ROLE_REQUIRED_ATTRIBUTE_VALUE;
+    }
+    if (XmlNameMatchesAscii(enc,
+                            ptr + MIN_BYTES_PER_CHAR(enc),
+                            end,
+                            KW_FIXED)) {
+      state->handler = attlist9;
+      return XML_ROLE_ATTLIST_NONE;
+    }
+    break;
+  case XML_TOK_LITERAL:
+    state->handler = attlist1;
+    return XML_ROLE_DEFAULT_ATTRIBUTE_VALUE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+attlist9(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ATTLIST_NONE;
+  case XML_TOK_LITERAL:
+    state->handler = attlist1;
+    return XML_ROLE_FIXED_ATTRIBUTE_VALUE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+element0(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ELEMENT_NONE;
+  case XML_TOK_NAME:
+  case XML_TOK_PREFIXED_NAME:
+    state->handler = element1;
+    return XML_ROLE_ELEMENT_NAME;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+element1(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ELEMENT_NONE;
+  case XML_TOK_NAME:
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_EMPTY)) {
+      state->handler = declClose;
+      state->role_none = XML_ROLE_ELEMENT_NONE;
+      return XML_ROLE_CONTENT_EMPTY;
+    }
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_ANY)) {
+      state->handler = declClose;
+      state->role_none = XML_ROLE_ELEMENT_NONE;
+      return XML_ROLE_CONTENT_ANY;
+    }
+    break;
+  case XML_TOK_OPEN_PAREN:
+    state->handler = element2;
+    state->level = 1;
+    return XML_ROLE_GROUP_OPEN;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+element2(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ELEMENT_NONE;
+  case XML_TOK_POUND_NAME:
+    if (XmlNameMatchesAscii(enc,
+                            ptr + MIN_BYTES_PER_CHAR(enc),
+                            end,
+                            KW_PCDATA)) {
+      state->handler = element3;
+      return XML_ROLE_CONTENT_PCDATA;
+    }
+    break;
+  case XML_TOK_OPEN_PAREN:
+    state->level = 2;
+    state->handler = element6;
+    return XML_ROLE_GROUP_OPEN;
+  case XML_TOK_NAME:
+  case XML_TOK_PREFIXED_NAME:
+    state->handler = element7;
+    return XML_ROLE_CONTENT_ELEMENT;
+  case XML_TOK_NAME_QUESTION:
+    state->handler = element7;
+    return XML_ROLE_CONTENT_ELEMENT_OPT;
+  case XML_TOK_NAME_ASTERISK:
+    state->handler = element7;
+    return XML_ROLE_CONTENT_ELEMENT_REP;
+  case XML_TOK_NAME_PLUS:
+    state->handler = element7;
+    return XML_ROLE_CONTENT_ELEMENT_PLUS;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+element3(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ELEMENT_NONE;
+  case XML_TOK_CLOSE_PAREN:
+    state->handler = declClose;
+    state->role_none = XML_ROLE_ELEMENT_NONE;
+    return XML_ROLE_GROUP_CLOSE;
+  case XML_TOK_CLOSE_PAREN_ASTERISK:
+    state->handler = declClose;
+    state->role_none = XML_ROLE_ELEMENT_NONE;
+    return XML_ROLE_GROUP_CLOSE_REP;
+  case XML_TOK_OR:
+    state->handler = element4;
+    return XML_ROLE_ELEMENT_NONE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+element4(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ELEMENT_NONE;
+  case XML_TOK_NAME:
+  case XML_TOK_PREFIXED_NAME:
+    state->handler = element5;
+    return XML_ROLE_CONTENT_ELEMENT;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+element5(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ELEMENT_NONE;
+  case XML_TOK_CLOSE_PAREN_ASTERISK:
+    state->handler = declClose;
+    state->role_none = XML_ROLE_ELEMENT_NONE;
+    return XML_ROLE_GROUP_CLOSE_REP;
+  case XML_TOK_OR:
+    state->handler = element4;
+    return XML_ROLE_ELEMENT_NONE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+element6(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ELEMENT_NONE;
+  case XML_TOK_OPEN_PAREN:
+    state->level += 1;
+    return XML_ROLE_GROUP_OPEN;
+  case XML_TOK_NAME:
+  case XML_TOK_PREFIXED_NAME:
+    state->handler = element7;
+    return XML_ROLE_CONTENT_ELEMENT;
+  case XML_TOK_NAME_QUESTION:
+    state->handler = element7;
+    return XML_ROLE_CONTENT_ELEMENT_OPT;
+  case XML_TOK_NAME_ASTERISK:
+    state->handler = element7;
+    return XML_ROLE_CONTENT_ELEMENT_REP;
+  case XML_TOK_NAME_PLUS:
+    state->handler = element7;
+    return XML_ROLE_CONTENT_ELEMENT_PLUS;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+element7(PROLOG_STATE *state,
+         int tok,
+         const char *ptr,
+         const char *end,
+         const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_ELEMENT_NONE;
+  case XML_TOK_CLOSE_PAREN:
+    state->level -= 1;
+    if (state->level == 0) {
+      state->handler = declClose;
+      state->role_none = XML_ROLE_ELEMENT_NONE;
+    }
+    return XML_ROLE_GROUP_CLOSE;
+  case XML_TOK_CLOSE_PAREN_ASTERISK:
+    state->level -= 1;
+    if (state->level == 0) {
+      state->handler = declClose;
+      state->role_none = XML_ROLE_ELEMENT_NONE;
+    }
+    return XML_ROLE_GROUP_CLOSE_REP;
+  case XML_TOK_CLOSE_PAREN_QUESTION:
+    state->level -= 1;
+    if (state->level == 0) {
+      state->handler = declClose;
+      state->role_none = XML_ROLE_ELEMENT_NONE;
+    }
+    return XML_ROLE_GROUP_CLOSE_OPT;
+  case XML_TOK_CLOSE_PAREN_PLUS:
+    state->level -= 1;
+    if (state->level == 0) {
+      state->handler = declClose;
+      state->role_none = XML_ROLE_ELEMENT_NONE;
+    }
+    return XML_ROLE_GROUP_CLOSE_PLUS;
+  case XML_TOK_COMMA:
+    state->handler = element6;
+    return XML_ROLE_GROUP_SEQUENCE;
+  case XML_TOK_OR:
+    state->handler = element6;
+    return XML_ROLE_GROUP_CHOICE;
+  }
+  return common(state, tok);
+}
+
+#ifdef XML_DTD
+
+static int PTRCALL
+condSect0(PROLOG_STATE *state,
+          int tok,
+          const char *ptr,
+          const char *end,
+          const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NONE;
+  case XML_TOK_NAME:
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_INCLUDE)) {
+      state->handler = condSect1;
+      return XML_ROLE_NONE;
+    }
+    if (XmlNameMatchesAscii(enc, ptr, end, KW_IGNORE)) {
+      state->handler = condSect2;
+      return XML_ROLE_NONE;
+    }
+    break;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+condSect1(PROLOG_STATE *state,
+          int tok,
+          const char *ptr,
+          const char *end,
+          const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NONE;
+  case XML_TOK_OPEN_BRACKET:
+    state->handler = externalSubset1;
+    state->includeLevel += 1;
+    return XML_ROLE_NONE;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+condSect2(PROLOG_STATE *state,
+          int tok,
+          const char *ptr,
+          const char *end,
+          const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return XML_ROLE_NONE;
+  case XML_TOK_OPEN_BRACKET:
+    state->handler = externalSubset1;
+    return XML_ROLE_IGNORE_SECT;
+  }
+  return common(state, tok);
+}
+
+#endif /* XML_DTD */
+
+static int PTRCALL
+declClose(PROLOG_STATE *state,
+          int tok,
+          const char *ptr,
+          const char *end,
+          const ENCODING *enc)
+{
+  switch (tok) {
+  case XML_TOK_PROLOG_S:
+    return state->role_none;
+  case XML_TOK_DECL_CLOSE:
+    setTopLevel(state);
+    return state->role_none;
+  }
+  return common(state, tok);
+}
+
+static int PTRCALL
+error(PROLOG_STATE *state,
+      int tok,
+      const char *ptr,
+      const char *end,
+      const ENCODING *enc)
+{
+  return XML_ROLE_NONE;
+}
+
+static int FASTCALL
+common(PROLOG_STATE *state, int tok)
+{
+#ifdef XML_DTD
+  if (!state->documentEntity && tok == XML_TOK_PARAM_ENTITY_REF)
+    return XML_ROLE_INNER_PARAM_ENTITY_REF;
+#endif
+  state->handler = error;
+  return XML_ROLE_ERROR;
+}
+
+void
+XmlPrologStateInit(PROLOG_STATE *state)
+{
+  state->handler = prolog0;
+#ifdef XML_DTD
+  state->documentEntity = 1;
+  state->includeLevel = 0;
+  state->inEntityValue = 0;
+#endif /* XML_DTD */
+}
+
+#ifdef XML_DTD
+
+void
+XmlPrologStateInitExternalEntity(PROLOG_STATE *state)
+{
+  state->handler = externalSubset0;
+  state->documentEntity = 0;
+  state->includeLevel = 0;
+}
+
+#endif /* XML_DTD */
diff --git a/lib/libexpat/lib/xmlrole.h b/lib/libexpat/lib/xmlrole.h
new file mode 100644
index 00000000000..4dd9f06f976
--- /dev/null
+++ b/lib/libexpat/lib/xmlrole.h
@@ -0,0 +1,114 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+#ifndef XmlRole_INCLUDED
+#define XmlRole_INCLUDED 1
+
+#ifdef __VMS
+/*      0        1         2         3      0        1         2         3
+        1234567890123456789012345678901     1234567890123456789012345678901 */
+#define XmlPrologStateInitExternalEntity    XmlPrologStateInitExternalEnt
+#endif
+
+#include "xmltok.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+  XML_ROLE_ERROR = -1,
+  XML_ROLE_NONE = 0,
+  XML_ROLE_XML_DECL,
+  XML_ROLE_INSTANCE_START,
+  XML_ROLE_DOCTYPE_NONE,
+  XML_ROLE_DOCTYPE_NAME,
+  XML_ROLE_DOCTYPE_SYSTEM_ID,
+  XML_ROLE_DOCTYPE_PUBLIC_ID,
+  XML_ROLE_DOCTYPE_INTERNAL_SUBSET,
+  XML_ROLE_DOCTYPE_CLOSE,
+  XML_ROLE_GENERAL_ENTITY_NAME,
+  XML_ROLE_PARAM_ENTITY_NAME,
+  XML_ROLE_ENTITY_NONE,
+  XML_ROLE_ENTITY_VALUE,
+  XML_ROLE_ENTITY_SYSTEM_ID,
+  XML_ROLE_ENTITY_PUBLIC_ID,
+  XML_ROLE_ENTITY_COMPLETE,
+  XML_ROLE_ENTITY_NOTATION_NAME,
+  XML_ROLE_NOTATION_NONE,
+  XML_ROLE_NOTATION_NAME,
+  XML_ROLE_NOTATION_SYSTEM_ID,
+  XML_ROLE_NOTATION_NO_SYSTEM_ID,
+  XML_ROLE_NOTATION_PUBLIC_ID,
+  XML_ROLE_ATTRIBUTE_NAME,
+  XML_ROLE_ATTRIBUTE_TYPE_CDATA,
+  XML_ROLE_ATTRIBUTE_TYPE_ID,
+  XML_ROLE_ATTRIBUTE_TYPE_IDREF,
+  XML_ROLE_ATTRIBUTE_TYPE_IDREFS,
+  XML_ROLE_ATTRIBUTE_TYPE_ENTITY,
+  XML_ROLE_ATTRIBUTE_TYPE_ENTITIES,
+  XML_ROLE_ATTRIBUTE_TYPE_NMTOKEN,
+  XML_ROLE_ATTRIBUTE_TYPE_NMTOKENS,
+  XML_ROLE_ATTRIBUTE_ENUM_VALUE,
+  XML_ROLE_ATTRIBUTE_NOTATION_VALUE,
+  XML_ROLE_ATTLIST_NONE,
+  XML_ROLE_ATTLIST_ELEMENT_NAME,
+  XML_ROLE_IMPLIED_ATTRIBUTE_VALUE,
+  XML_ROLE_REQUIRED_ATTRIBUTE_VALUE,
+  XML_ROLE_DEFAULT_ATTRIBUTE_VALUE,
+  XML_ROLE_FIXED_ATTRIBUTE_VALUE,
+  XML_ROLE_ELEMENT_NONE,
+  XML_ROLE_ELEMENT_NAME,
+  XML_ROLE_CONTENT_ANY,
+  XML_ROLE_CONTENT_EMPTY,
+  XML_ROLE_CONTENT_PCDATA,
+  XML_ROLE_GROUP_OPEN,
+  XML_ROLE_GROUP_CLOSE,
+  XML_ROLE_GROUP_CLOSE_REP,
+  XML_ROLE_GROUP_CLOSE_OPT,
+  XML_ROLE_GROUP_CLOSE_PLUS,
+  XML_ROLE_GROUP_CHOICE,
+  XML_ROLE_GROUP_SEQUENCE,
+  XML_ROLE_CONTENT_ELEMENT,
+  XML_ROLE_CONTENT_ELEMENT_REP,
+  XML_ROLE_CONTENT_ELEMENT_OPT,
+  XML_ROLE_CONTENT_ELEMENT_PLUS,
+  XML_ROLE_PI,
+  XML_ROLE_COMMENT,
+#ifdef XML_DTD
+  XML_ROLE_TEXT_DECL,
+  XML_ROLE_IGNORE_SECT,
+  XML_ROLE_INNER_PARAM_ENTITY_REF,
+#endif /* XML_DTD */
+  XML_ROLE_PARAM_ENTITY_REF
+};
+
+typedef struct prolog_state {
+  int (PTRCALL *handler) (struct prolog_state *state,
+                          int tok,
+                          const char *ptr,
+                          const char *end,
+                          const ENCODING *enc);
+  unsigned level;
+  int role_none;
+#ifdef XML_DTD
+  unsigned includeLevel;
+  int documentEntity;
+  int inEntityValue;
+#endif /* XML_DTD */
+} PROLOG_STATE;
+
+void XmlPrologStateInit(PROLOG_STATE *);
+#ifdef XML_DTD
+void XmlPrologStateInitExternalEntity(PROLOG_STATE *);
+#endif /* XML_DTD */
+
+#define XmlTokenRole(state, tok, ptr, end, enc) \
+ (((state)->handler)(state, tok, ptr, end, enc))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* not XmlRole_INCLUDED */
diff --git a/lib/libexpat/lib/xmltok.c b/lib/libexpat/lib/xmltok.c
new file mode 100644
index 00000000000..5f101afe87e
--- /dev/null
+++ b/lib/libexpat/lib/xmltok.c
@@ -0,0 +1,1632 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+#ifdef COMPILED_FROM_DSP
+#include "winconfig.h"
+#elif defined(MACOS_CLASSIC)
+#include "macconfig.h"
+#else
+#include <expat_config.h>
+#endif /* ndef COMPILED_FROM_DSP */
+
+#include "internal.h"
+#include "xmltok.h"
+#include "nametab.h"
+
+#ifdef XML_DTD
+#define IGNORE_SECTION_TOK_VTABLE , PREFIX(ignoreSectionTok)
+#else
+#define IGNORE_SECTION_TOK_VTABLE /* as nothing */
+#endif
+
+#define VTABLE1 \
+  { PREFIX(prologTok), PREFIX(contentTok), \
+    PREFIX(cdataSectionTok) IGNORE_SECTION_TOK_VTABLE }, \
+  { PREFIX(attributeValueTok), PREFIX(entityValueTok) }, \
+  PREFIX(sameName), \
+  PREFIX(nameMatchesAscii), \
+  PREFIX(nameLength), \
+  PREFIX(skipS), \
+  PREFIX(getAtts), \
+  PREFIX(charRefNumber), \
+  PREFIX(predefinedEntityName), \
+  PREFIX(updatePosition), \
+  PREFIX(isPublicId)
+
+#define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16)
+
+#define UCS2_GET_NAMING(pages, hi, lo) \
+   (namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1 << ((lo) & 0x1F)))
+
+/* A 2 byte UTF-8 representation splits the characters 11 bits between
+   the bottom 5 and 6 bits of the bytes.  We need 8 bits to index into
+   pages, 3 bits to add to that index and 5 bits to generate the mask.
+*/
+#define UTF8_GET_NAMING2(pages, byte) \
+    (namingBitmap[((pages)[(((byte)[0]) >> 2) & 7] << 3) \
+                      + ((((byte)[0]) & 3) << 1) \
+                      + ((((byte)[1]) >> 5) & 1)] \
+         & (1 << (((byte)[1]) & 0x1F)))
+
+/* A 3 byte UTF-8 representation splits the characters 16 bits between
+   the bottom 4, 6 and 6 bits of the bytes.  We need 8 bits to index
+   into pages, 3 bits to add to that index and 5 bits to generate the
+   mask.
+*/
+#define UTF8_GET_NAMING3(pages, byte) \
+  (namingBitmap[((pages)[((((byte)[0]) & 0xF) << 4) \
+                             + ((((byte)[1]) >> 2) & 0xF)] \
+                       << 3) \
+                      + ((((byte)[1]) & 3) << 1) \
+                      + ((((byte)[2]) >> 5) & 1)] \
+         & (1 << (((byte)[2]) & 0x1F)))
+
+#define UTF8_GET_NAMING(pages, p, n) \
+  ((n) == 2 \
+  ? UTF8_GET_NAMING2(pages, (const unsigned char *)(p)) \
+  : ((n) == 3 \
+     ? UTF8_GET_NAMING3(pages, (const unsigned char *)(p)) \
+     : 0))
+
+/* Detection of invalid UTF-8 sequences is based on Table 3.1B
+   of Unicode 3.2: http://www.unicode.org/unicode/reports/tr28/
+   with the additional restriction of not allowing the Unicode
+   code points 0xFFFF and 0xFFFE (sequences EF,BF,BF and EF,BF,BE).
+   Implementation details:
+     (A & 0x80) == 0     means A < 0x80
+   and
+     (A & 0xC0) == 0xC0  means A > 0xBF
+*/
+
+#define UTF8_INVALID2(p) \
+  ((*p) < 0xC2 || ((p)[1] & 0x80) == 0 || ((p)[1] & 0xC0) == 0xC0)
+
+#define UTF8_INVALID3(p) \
+  (((p)[2] & 0x80) == 0 \
+  || \
+  ((*p) == 0xEF && (p)[1] == 0xBF \
+    ? \
+    (p)[2] > 0xBD \
+    : \
+    ((p)[2] & 0xC0) == 0xC0) \
+  || \
+  ((*p) == 0xE0 \
+    ? \
+    (p)[1] < 0xA0 || ((p)[1] & 0xC0) == 0xC0 \
+    : \
+    ((p)[1] & 0x80) == 0 \
+    || \
+    ((*p) == 0xED ? (p)[1] > 0x9F : ((p)[1] & 0xC0) == 0xC0)))
+
+#define UTF8_INVALID4(p) \
+  (((p)[3] & 0x80) == 0 || ((p)[3] & 0xC0) == 0xC0 \
+  || \
+  ((p)[2] & 0x80) == 0 || ((p)[2] & 0xC0) == 0xC0 \
+  || \
+  ((*p) == 0xF0 \
+    ? \
+    (p)[1] < 0x90 || ((p)[1] & 0xC0) == 0xC0 \
+    : \
+    ((p)[1] & 0x80) == 0 \
+    || \
+    ((*p) == 0xF4 ? (p)[1] > 0x8F : ((p)[1] & 0xC0) == 0xC0)))
+
+static int PTRFASTCALL
+isNever(const ENCODING *enc, const char *p)
+{
+  return 0;
+}
+
+static int PTRFASTCALL
+utf8_isName2(const ENCODING *enc, const char *p)
+{
+  return UTF8_GET_NAMING2(namePages, (const unsigned char *)p);
+}
+
+static int PTRFASTCALL
+utf8_isName3(const ENCODING *enc, const char *p)
+{
+  return UTF8_GET_NAMING3(namePages, (const unsigned char *)p);
+}
+
+#define utf8_isName4 isNever
+
+static int PTRFASTCALL
+utf8_isNmstrt2(const ENCODING *enc, const char *p)
+{
+  return UTF8_GET_NAMING2(nmstrtPages, (const unsigned char *)p);
+}
+
+static int PTRFASTCALL
+utf8_isNmstrt3(const ENCODING *enc, const char *p)
+{
+  return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p);
+}
+
+#define utf8_isNmstrt4 isNever
+
+static int PTRFASTCALL
+utf8_isInvalid2(const ENCODING *enc, const char *p)
+{
+  return UTF8_INVALID2((const unsigned char *)p);
+}
+
+static int PTRFASTCALL
+utf8_isInvalid3(const ENCODING *enc, const char *p)
+{
+  return UTF8_INVALID3((const unsigned char *)p);
+}
+
+static int PTRFASTCALL
+utf8_isInvalid4(const ENCODING *enc, const char *p)
+{
+  return UTF8_INVALID4((const unsigned char *)p);
+}
+
+struct normal_encoding {
+  ENCODING enc;
+  unsigned char type[256];
+#ifdef XML_MIN_SIZE
+  int (PTRFASTCALL *byteType)(const ENCODING *, const char *);
+  int (PTRFASTCALL *isNameMin)(const ENCODING *, const char *);
+  int (PTRFASTCALL *isNmstrtMin)(const ENCODING *, const char *);
+  int (PTRFASTCALL *byteToAscii)(const ENCODING *, const char *);
+  int (PTRCALL *charMatches)(const ENCODING *, const char *, int);
+#endif /* XML_MIN_SIZE */
+  int (PTRFASTCALL *isName2)(const ENCODING *, const char *);
+  int (PTRFASTCALL *isName3)(const ENCODING *, const char *);
+  int (PTRFASTCALL *isName4)(const ENCODING *, const char *);
+  int (PTRFASTCALL *isNmstrt2)(const ENCODING *, const char *);
+  int (PTRFASTCALL *isNmstrt3)(const ENCODING *, const char *);
+  int (PTRFASTCALL *isNmstrt4)(const ENCODING *, const char *);
+  int (PTRFASTCALL *isInvalid2)(const ENCODING *, const char *);
+  int (PTRFASTCALL *isInvalid3)(const ENCODING *, const char *);
+  int (PTRFASTCALL *isInvalid4)(const ENCODING *, const char *);
+};
+
+#define AS_NORMAL_ENCODING(enc)   ((const struct normal_encoding *) (enc))
+
+#ifdef XML_MIN_SIZE
+
+#define STANDARD_VTABLE(E) \
+ E ## byteType, \
+ E ## isNameMin, \
+ E ## isNmstrtMin, \
+ E ## byteToAscii, \
+ E ## charMatches,
+
+#else
+
+#define STANDARD_VTABLE(E) /* as nothing */
+
+#endif
+
+#define NORMAL_VTABLE(E) \
+ E ## isName2, \
+ E ## isName3, \
+ E ## isName4, \
+ E ## isNmstrt2, \
+ E ## isNmstrt3, \
+ E ## isNmstrt4, \
+ E ## isInvalid2, \
+ E ## isInvalid3, \
+ E ## isInvalid4
+
+static int FASTCALL checkCharRefNumber(int);
+
+#include "xmltok_impl.h"
+#include "ascii.h"
+
+#ifdef XML_MIN_SIZE
+#define sb_isNameMin isNever
+#define sb_isNmstrtMin isNever
+#endif
+
+#ifdef XML_MIN_SIZE
+#define MINBPC(enc) ((enc)->minBytesPerChar)
+#else
+/* minimum bytes per character */
+#define MINBPC(enc) 1
+#endif
+
+#define SB_BYTE_TYPE(enc, p) \
+  (((struct normal_encoding *)(enc))->type[(unsigned char)*(p)])
+
+#ifdef XML_MIN_SIZE
+static int PTRFASTCALL
+sb_byteType(const ENCODING *enc, const char *p)
+{
+  return SB_BYTE_TYPE(enc, p);
+}
+#define BYTE_TYPE(enc, p) \
+ (AS_NORMAL_ENCODING(enc)->byteType(enc, p))
+#else
+#define BYTE_TYPE(enc, p) SB_BYTE_TYPE(enc, p)
+#endif
+
+#ifdef XML_MIN_SIZE
+#define BYTE_TO_ASCII(enc, p) \
+ (AS_NORMAL_ENCODING(enc)->byteToAscii(enc, p))
+static int PTRFASTCALL
+sb_byteToAscii(const ENCODING *enc, const char *p)
+{
+  return *p;
+}
+#else
+#define BYTE_TO_ASCII(enc, p) (*(p))
+#endif
+
+#define IS_NAME_CHAR(enc, p, n) \
+ (AS_NORMAL_ENCODING(enc)->isName ## n(enc, p))
+#define IS_NMSTRT_CHAR(enc, p, n) \
+ (AS_NORMAL_ENCODING(enc)->isNmstrt ## n(enc, p))
+#define IS_INVALID_CHAR(enc, p, n) \
+ (AS_NORMAL_ENCODING(enc)->isInvalid ## n(enc, p))
+
+#ifdef XML_MIN_SIZE
+#define IS_NAME_CHAR_MINBPC(enc, p) \
+ (AS_NORMAL_ENCODING(enc)->isNameMin(enc, p))
+#define IS_NMSTRT_CHAR_MINBPC(enc, p) \
+ (AS_NORMAL_ENCODING(enc)->isNmstrtMin(enc, p))
+#else
+#define IS_NAME_CHAR_MINBPC(enc, p) (0)
+#define IS_NMSTRT_CHAR_MINBPC(enc, p) (0)
+#endif
+
+#ifdef XML_MIN_SIZE
+#define CHAR_MATCHES(enc, p, c) \
+ (AS_NORMAL_ENCODING(enc)->charMatches(enc, p, c))
+static int PTRCALL
+sb_charMatches(const ENCODING *enc, const char *p, int c)
+{
+  return *p == c;
+}
+#else
+/* c is an ASCII character */
+#define CHAR_MATCHES(enc, p, c) (*(p) == c)
+#endif
+
+#define PREFIX(ident) normal_ ## ident
+#include "xmltok_impl.c"
+
+#undef MINBPC
+#undef BYTE_TYPE
+#undef BYTE_TO_ASCII
+#undef CHAR_MATCHES
+#undef IS_NAME_CHAR
+#undef IS_NAME_CHAR_MINBPC
+#undef IS_NMSTRT_CHAR
+#undef IS_NMSTRT_CHAR_MINBPC
+#undef IS_INVALID_CHAR
+
+enum {  /* UTF8_cvalN is value of masked first byte of N byte sequence */
+  UTF8_cval1 = 0x00,
+  UTF8_cval2 = 0xc0,
+  UTF8_cval3 = 0xe0,
+  UTF8_cval4 = 0xf0
+};
+
+static void PTRCALL
+utf8_toUtf8(const ENCODING *enc,
+            const char **fromP, const char *fromLim,
+            char **toP, const char *toLim)
+{
+  char *to;
+  const char *from;
+  if (fromLim - *fromP > toLim - *toP) {
+    /* Avoid copying partial characters. */
+    for (fromLim = *fromP + (toLim - *toP); fromLim > *fromP; fromLim--)
+      if (((unsigned char)fromLim[-1] & 0xc0) != 0x80)
+        break;
+  }
+  for (to = *toP, from = *fromP; from != fromLim; from++, to++)
+    *to = *from;
+  *fromP = from;
+  *toP = to;
+}
+
+static void PTRCALL
+utf8_toUtf16(const ENCODING *enc,
+             const char **fromP, const char *fromLim,
+             unsigned short **toP, const unsigned short *toLim)
+{
+  unsigned short *to = *toP;
+  const char *from = *fromP;
+  while (from != fromLim && to != toLim) {
+    switch (((struct normal_encoding *)enc)->type[(unsigned char)*from]) {
+    case BT_LEAD2:
+      *to++ = (unsigned short)(((from[0] & 0x1f) << 6) | (from[1] & 0x3f));
+      from += 2;
+      break;
+    case BT_LEAD3:
+      *to++ = (unsigned short)(((from[0] & 0xf) << 12)
+                               | ((from[1] & 0x3f) << 6) | (from[2] & 0x3f));
+      from += 3;
+      break;
+    case BT_LEAD4:
+      {
+        unsigned long n;
+        if (to + 1 == toLim)
+          goto after;
+        n = ((from[0] & 0x7) << 18) | ((from[1] & 0x3f) << 12)
+            | ((from[2] & 0x3f) << 6) | (from[3] & 0x3f);
+        n -= 0x10000;
+        to[0] = (unsigned short)((n >> 10) | 0xD800);
+        to[1] = (unsigned short)((n & 0x3FF) | 0xDC00);
+        to += 2;
+        from += 4;
+      }
+      break;
+    default:
+      *to++ = *from++;
+      break;
+    }
+  }
+after:
+  *fromP = from;
+  *toP = to;
+}
+
+#ifdef XML_NS
+static const struct normal_encoding utf8_encoding_ns = {
+  { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 },
+  {
+#include "asciitab.h"
+#include "utf8tab.h"
+  },
+  STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)
+};
+#endif
+
+static const struct normal_encoding utf8_encoding = {
+  { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 },
+  {
+#define BT_COLON BT_NMSTRT
+#include "asciitab.h"
+#undef BT_COLON
+#include "utf8tab.h"
+  },
+  STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)
+};
+
+#ifdef XML_NS
+
+static const struct normal_encoding internal_utf8_encoding_ns = {
+  { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 },
+  {
+#include "iasciitab.h"
+#include "utf8tab.h"
+  },
+  STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)
+};
+
+#endif
+
+static const struct normal_encoding internal_utf8_encoding = {
+  { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 },
+  {
+#define BT_COLON BT_NMSTRT
+#include "iasciitab.h"
+#undef BT_COLON
+#include "utf8tab.h"
+  },
+  STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)
+};
+
+static void PTRCALL
+latin1_toUtf8(const ENCODING *enc,
+              const char **fromP, const char *fromLim,
+              char **toP, const char *toLim)
+{
+  for (;;) {
+    unsigned char c;
+    if (*fromP == fromLim)
+      break;
+    c = (unsigned char)**fromP;
+    if (c & 0x80) {
+      if (toLim - *toP < 2)
+        break;
+      *(*toP)++ = (char)((c >> 6) | UTF8_cval2);
+      *(*toP)++ = (char)((c & 0x3f) | 0x80);
+      (*fromP)++;
+    }
+    else {
+      if (*toP == toLim)
+        break;
+      *(*toP)++ = *(*fromP)++;
+    }
+  }
+}
+
+static void PTRCALL
+latin1_toUtf16(const ENCODING *enc,
+               const char **fromP, const char *fromLim,
+               unsigned short **toP, const unsigned short *toLim)
+{
+  while (*fromP != fromLim && *toP != toLim)
+    *(*toP)++ = (unsigned char)*(*fromP)++;
+}
+
+#ifdef XML_NS
+
+static const struct normal_encoding latin1_encoding_ns = {
+  { VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 },
+  {
+#include "asciitab.h"
+#include "latin1tab.h"
+  },
+  STANDARD_VTABLE(sb_)
+};
+
+#endif
+
+static const struct normal_encoding latin1_encoding = {
+  { VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 },
+  {
+#define BT_COLON BT_NMSTRT
+#include "asciitab.h"
+#undef BT_COLON
+#include "latin1tab.h"
+  },
+  STANDARD_VTABLE(sb_)
+};
+
+static void PTRCALL
+ascii_toUtf8(const ENCODING *enc,
+             const char **fromP, const char *fromLim,
+             char **toP, const char *toLim)
+{
+  while (*fromP != fromLim && *toP != toLim)
+    *(*toP)++ = *(*fromP)++;
+}
+
+#ifdef XML_NS
+
+static const struct normal_encoding ascii_encoding_ns = {
+  { VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 },
+  {
+#include "asciitab.h"
+/* BT_NONXML == 0 */
+  },
+  STANDARD_VTABLE(sb_)
+};
+
+#endif
+
+static const struct normal_encoding ascii_encoding = {
+  { VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 },
+  {
+#define BT_COLON BT_NMSTRT
+#include "asciitab.h"
+#undef BT_COLON
+/* BT_NONXML == 0 */
+  },
+  STANDARD_VTABLE(sb_)
+};
+
+static int PTRFASTCALL
+unicode_byte_type(char hi, char lo)
+{
+  switch ((unsigned char)hi) {
+  case 0xD8: case 0xD9: case 0xDA: case 0xDB:
+    return BT_LEAD4;
+  case 0xDC: case 0xDD: case 0xDE: case 0xDF:
+    return BT_TRAIL;
+  case 0xFF:
+    switch ((unsigned char)lo) {
+    case 0xFF:
+    case 0xFE:
+      return BT_NONXML;
+    }
+    break;
+  }
+  return BT_NONASCII;
+}
+
+#define DEFINE_UTF16_TO_UTF8(E) \
+static void  PTRCALL \
+E ## toUtf8(const ENCODING *enc, \
+            const char **fromP, const char *fromLim, \
+            char **toP, const char *toLim) \
+{ \
+  const char *from; \
+  for (from = *fromP; from != fromLim; from += 2) { \
+    int plane; \
+    unsigned char lo2; \
+    unsigned char lo = GET_LO(from); \
+    unsigned char hi = GET_HI(from); \
+    switch (hi) { \
+    case 0: \
+      if (lo < 0x80) { \
+        if (*toP == toLim) { \
+          *fromP = from; \
+          return; \
+        } \
+        *(*toP)++ = lo; \
+        break; \
+      } \
+      /* fall through */ \
+    case 0x1: case 0x2: case 0x3: \
+    case 0x4: case 0x5: case 0x6: case 0x7: \
+      if (toLim -  *toP < 2) { \
+        *fromP = from; \
+        return; \
+      } \
+      *(*toP)++ = ((lo >> 6) | (hi << 2) |  UTF8_cval2); \
+      *(*toP)++ = ((lo & 0x3f) | 0x80); \
+      break; \
+    default: \
+      if (toLim -  *toP < 3)  { \
+        *fromP = from; \
+        return; \
+      } \
+      /* 16 bits divided 4, 6, 6 amongst 3 bytes */ \
+      *(*toP)++ = ((hi >> 4) | UTF8_cval3); \
+      *(*toP)++ = (((hi & 0xf) << 2) | (lo >> 6) | 0x80); \
+      *(*toP)++ = ((lo & 0x3f) | 0x80); \
+      break; \
+    case 0xD8: case 0xD9: case 0xDA: case 0xDB: \
+      if (toLim -  *toP < 4) { \
+        *fromP = from; \
+        return; \
+      } \
+      plane = (((hi & 0x3) << 2) | ((lo >> 6) & 0x3)) + 1; \
+      *(*toP)++ = ((plane >> 2) | UTF8_cval4); \
+      *(*toP)++ = (((lo >> 2) & 0xF) | ((plane & 0x3) << 4) | 0x80); \
+      from += 2; \
+      lo2 = GET_LO(from); \
+      *(*toP)++ = (((lo & 0x3) << 4) \
+                   | ((GET_HI(from) & 0x3) << 2) \
+                   | (lo2 >> 6) \
+                   | 0x80); \
+      *(*toP)++ = ((lo2 & 0x3f) | 0x80); \
+      break; \
+    } \
+  } \
+  *fromP = from; \
+}
+
+#define DEFINE_UTF16_TO_UTF16(E) \
+static void  PTRCALL \
+E ## toUtf16(const ENCODING *enc, \
+             const char **fromP, const char *fromLim, \
+             unsigned short **toP, const unsigned short *toLim) \
+{ \
+  /* Avoid copying first half only of surrogate */ \
+  if (fromLim - *fromP > ((toLim - *toP) << 1) \
+      && (GET_HI(fromLim - 2) & 0xF8) == 0xD8) \
+    fromLim -= 2; \
+  for (; *fromP != fromLim && *toP != toLim; *fromP += 2) \
+    *(*toP)++ = (GET_HI(*fromP) << 8) | GET_LO(*fromP); \
+}
+
+#define SET2(ptr, ch) \
+  (((ptr)[0] = ((ch) & 0xff)), ((ptr)[1] = ((ch) >> 8)))
+#define GET_LO(ptr) ((unsigned char)(ptr)[0])
+#define GET_HI(ptr) ((unsigned char)(ptr)[1])
+
+DEFINE_UTF16_TO_UTF8(little2_)
+DEFINE_UTF16_TO_UTF16(little2_)
+
+#undef SET2
+#undef GET_LO
+#undef GET_HI
+
+#define SET2(ptr, ch) \
+  (((ptr)[0] = ((ch) >> 8)), ((ptr)[1] = ((ch) & 0xFF)))
+#define GET_LO(ptr) ((unsigned char)(ptr)[1])
+#define GET_HI(ptr) ((unsigned char)(ptr)[0])
+
+DEFINE_UTF16_TO_UTF8(big2_)
+DEFINE_UTF16_TO_UTF16(big2_)
+
+#undef SET2
+#undef GET_LO
+#undef GET_HI
+
+#define LITTLE2_BYTE_TYPE(enc, p) \
+ ((p)[1] == 0 \
+  ? ((struct normal_encoding *)(enc))->type[(unsigned char)*(p)] \
+  : unicode_byte_type((p)[1], (p)[0]))
+#define LITTLE2_BYTE_TO_ASCII(enc, p) ((p)[1] == 0 ? (p)[0] : -1)
+#define LITTLE2_CHAR_MATCHES(enc, p, c) ((p)[1] == 0 && (p)[0] == c)
+#define LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) \
+  UCS2_GET_NAMING(namePages, (unsigned char)p[1], (unsigned char)p[0])
+#define LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) \
+  UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[1], (unsigned char)p[0])
+
+#ifdef XML_MIN_SIZE
+
+static int PTRFASTCALL
+little2_byteType(const ENCODING *enc, const char *p)
+{
+  return LITTLE2_BYTE_TYPE(enc, p);
+}
+
+static int PTRFASTCALL
+little2_byteToAscii(const ENCODING *enc, const char *p)
+{
+  return LITTLE2_BYTE_TO_ASCII(enc, p);
+}
+
+static int PTRCALL
+little2_charMatches(const ENCODING *enc, const char *p, int c)
+{
+  return LITTLE2_CHAR_MATCHES(enc, p, c);
+}
+
+static int PTRFASTCALL
+little2_isNameMin(const ENCODING *enc, const char *p)
+{
+  return LITTLE2_IS_NAME_CHAR_MINBPC(enc, p);
+}
+
+static int PTRFASTCALL
+little2_isNmstrtMin(const ENCODING *enc, const char *p)
+{
+  return LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p);
+}
+
+#undef VTABLE
+#define VTABLE VTABLE1, little2_toUtf8, little2_toUtf16
+
+#else /* not XML_MIN_SIZE */
+
+#undef PREFIX
+#define PREFIX(ident) little2_ ## ident
+#define MINBPC(enc) 2
+/* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */
+#define BYTE_TYPE(enc, p) LITTLE2_BYTE_TYPE(enc, p)
+#define BYTE_TO_ASCII(enc, p) LITTLE2_BYTE_TO_ASCII(enc, p)
+#define CHAR_MATCHES(enc, p, c) LITTLE2_CHAR_MATCHES(enc, p, c)
+#define IS_NAME_CHAR(enc, p, n) 0
+#define IS_NAME_CHAR_MINBPC(enc, p) LITTLE2_IS_NAME_CHAR_MINBPC(enc, p)
+#define IS_NMSTRT_CHAR(enc, p, n) (0)
+#define IS_NMSTRT_CHAR_MINBPC(enc, p) LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p)
+
+#include "xmltok_impl.c"
+
+#undef MINBPC
+#undef BYTE_TYPE
+#undef BYTE_TO_ASCII
+#undef CHAR_MATCHES
+#undef IS_NAME_CHAR
+#undef IS_NAME_CHAR_MINBPC
+#undef IS_NMSTRT_CHAR
+#undef IS_NMSTRT_CHAR_MINBPC
+#undef IS_INVALID_CHAR
+
+#endif /* not XML_MIN_SIZE */
+
+#ifdef XML_NS
+
+static const struct normal_encoding little2_encoding_ns = {
+  { VTABLE, 2, 0,
+#if BYTEORDER == 1234
+    1
+#else
+    0
+#endif
+  },
+  {
+#include "asciitab.h"
+#include "latin1tab.h"
+  },
+  STANDARD_VTABLE(little2_)
+};
+
+#endif
+
+static const struct normal_encoding little2_encoding = {
+  { VTABLE, 2, 0,
+#if BYTEORDER == 1234
+    1
+#else
+    0
+#endif
+  },
+  {
+#define BT_COLON BT_NMSTRT
+#include "asciitab.h"
+#undef BT_COLON
+#include "latin1tab.h"
+  },
+  STANDARD_VTABLE(little2_)
+};
+
+#if BYTEORDER != 4321
+
+#ifdef XML_NS
+
+static const struct normal_encoding internal_little2_encoding_ns = {
+  { VTABLE, 2, 0, 1 },
+  {
+#include "iasciitab.h"
+#include "latin1tab.h"
+  },
+  STANDARD_VTABLE(little2_)
+};
+
+#endif
+
+static const struct normal_encoding internal_little2_encoding = {
+  { VTABLE, 2, 0, 1 },
+  {
+#define BT_COLON BT_NMSTRT
+#include "iasciitab.h"
+#undef BT_COLON
+#include "latin1tab.h"
+  },
+  STANDARD_VTABLE(little2_)
+};
+
+#endif
+
+
+#define BIG2_BYTE_TYPE(enc, p) \
+ ((p)[0] == 0 \
+  ? ((struct normal_encoding *)(enc))->type[(unsigned char)(p)[1]] \
+  : unicode_byte_type((p)[0], (p)[1]))
+#define BIG2_BYTE_TO_ASCII(enc, p) ((p)[0] == 0 ? (p)[1] : -1)
+#define BIG2_CHAR_MATCHES(enc, p, c) ((p)[0] == 0 && (p)[1] == c)
+#define BIG2_IS_NAME_CHAR_MINBPC(enc, p) \
+  UCS2_GET_NAMING(namePages, (unsigned char)p[0], (unsigned char)p[1])
+#define BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) \
+  UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[0], (unsigned char)p[1])
+
+#ifdef XML_MIN_SIZE
+
+static int PTRFASTCALL
+big2_byteType(const ENCODING *enc, const char *p)
+{
+  return BIG2_BYTE_TYPE(enc, p);
+}
+
+static int PTRFASTCALL
+big2_byteToAscii(const ENCODING *enc, const char *p)
+{
+  return BIG2_BYTE_TO_ASCII(enc, p);
+}
+
+static int PTRCALL
+big2_charMatches(const ENCODING *enc, const char *p, int c)
+{
+  return BIG2_CHAR_MATCHES(enc, p, c);
+}
+
+static int PTRFASTCALL
+big2_isNameMin(const ENCODING *enc, const char *p)
+{
+  return BIG2_IS_NAME_CHAR_MINBPC(enc, p);
+}
+
+static int PTRFASTCALL
+big2_isNmstrtMin(const ENCODING *enc, const char *p)
+{
+  return BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p);
+}
+
+#undef VTABLE
+#define VTABLE VTABLE1, big2_toUtf8, big2_toUtf16
+
+#else /* not XML_MIN_SIZE */
+
+#undef PREFIX
+#define PREFIX(ident) big2_ ## ident
+#define MINBPC(enc) 2
+/* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */
+#define BYTE_TYPE(enc, p) BIG2_BYTE_TYPE(enc, p)
+#define BYTE_TO_ASCII(enc, p) BIG2_BYTE_TO_ASCII(enc, p)
+#define CHAR_MATCHES(enc, p, c) BIG2_CHAR_MATCHES(enc, p, c)
+#define IS_NAME_CHAR(enc, p, n) 0
+#define IS_NAME_CHAR_MINBPC(enc, p) BIG2_IS_NAME_CHAR_MINBPC(enc, p)
+#define IS_NMSTRT_CHAR(enc, p, n) (0)
+#define IS_NMSTRT_CHAR_MINBPC(enc, p) BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p)
+
+#include "xmltok_impl.c"
+
+#undef MINBPC
+#undef BYTE_TYPE
+#undef BYTE_TO_ASCII
+#undef CHAR_MATCHES
+#undef IS_NAME_CHAR
+#undef IS_NAME_CHAR_MINBPC
+#undef IS_NMSTRT_CHAR
+#undef IS_NMSTRT_CHAR_MINBPC
+#undef IS_INVALID_CHAR
+
+#endif /* not XML_MIN_SIZE */
+
+#ifdef XML_NS
+
+static const struct normal_encoding big2_encoding_ns = {
+  { VTABLE, 2, 0,
+#if BYTEORDER == 4321
+  1
+#else
+  0
+#endif
+  },
+  {
+#include "asciitab.h"
+#include "latin1tab.h"
+  },
+  STANDARD_VTABLE(big2_)
+};
+
+#endif
+
+static const struct normal_encoding big2_encoding = {
+  { VTABLE, 2, 0,
+#if BYTEORDER == 4321
+  1
+#else
+  0
+#endif
+  },
+  {
+#define BT_COLON BT_NMSTRT
+#include "asciitab.h"
+#undef BT_COLON
+#include "latin1tab.h"
+  },
+  STANDARD_VTABLE(big2_)
+};
+
+#if BYTEORDER != 1234
+
+#ifdef XML_NS
+
+static const struct normal_encoding internal_big2_encoding_ns = {
+  { VTABLE, 2, 0, 1 },
+  {
+#include "iasciitab.h"
+#include "latin1tab.h"
+  },
+  STANDARD_VTABLE(big2_)
+};
+
+#endif
+
+static const struct normal_encoding internal_big2_encoding = {
+  { VTABLE, 2, 0, 1 },
+  {
+#define BT_COLON BT_NMSTRT
+#include "iasciitab.h"
+#undef BT_COLON
+#include "latin1tab.h"
+  },
+  STANDARD_VTABLE(big2_)
+};
+
+#endif
+
+#undef PREFIX
+
+static int FASTCALL
+streqci(const char *s1, const char *s2)
+{
+  for (;;) {
+    char c1 = *s1++;
+    char c2 = *s2++;
+    if (ASCII_a <= c1 && c1 <= ASCII_z)
+      c1 += ASCII_A - ASCII_a;
+    if (ASCII_a <= c2 && c2 <= ASCII_z)
+      c2 += ASCII_A - ASCII_a;
+    if (c1 != c2)
+      return 0;
+    if (!c1)
+      break;
+  }
+  return 1;
+}
+
+static void PTRCALL
+initUpdatePosition(const ENCODING *enc, const char *ptr,
+                   const char *end, POSITION *pos)
+{
+  normal_updatePosition(&utf8_encoding.enc, ptr, end, pos);
+}
+
+static int
+toAscii(const ENCODING *enc, const char *ptr, const char *end)
+{
+  char buf[1];
+  char *p = buf;
+  XmlUtf8Convert(enc, &ptr, end, &p, p + 1);
+  if (p == buf)
+    return -1;
+  else
+    return buf[0];
+}
+
+static int FASTCALL
+isSpace(int c)
+{
+  switch (c) {
+  case 0x20:
+  case 0xD:
+  case 0xA:
+  case 0x9:
+    return 1;
+  }
+  return 0;
+}
+
+/* Return 1 if there's just optional white space or there's an S
+   followed by name=val.
+*/
+static int
+parsePseudoAttribute(const ENCODING *enc,
+                     const char *ptr,
+                     const char *end,
+                     const char **namePtr,
+                     const char **nameEndPtr,
+                     const char **valPtr,
+                     const char **nextTokPtr)
+{
+  int c;
+  char open;
+  if (ptr == end) {
+    *namePtr = NULL;
+    return 1;
+  }
+  if (!isSpace(toAscii(enc, ptr, end))) {
+    *nextTokPtr = ptr;
+    return 0;
+  }
+  do {
+    ptr += enc->minBytesPerChar;
+  } while (isSpace(toAscii(enc, ptr, end)));
+  if (ptr == end) {
+    *namePtr = NULL;
+    return 1;
+  }
+  *namePtr = ptr;
+  for (;;) {
+    c = toAscii(enc, ptr, end);
+    if (c == -1) {
+      *nextTokPtr = ptr;
+      return 0;
+    }
+    if (c == ASCII_EQUALS) {
+      *nameEndPtr = ptr;
+      break;
+    }
+    if (isSpace(c)) {
+      *nameEndPtr = ptr;
+      do {
+        ptr += enc->minBytesPerChar;
+      } while (isSpace(c = toAscii(enc, ptr, end)));
+      if (c != ASCII_EQUALS) {
+        *nextTokPtr = ptr;
+        return 0;
+      }
+      break;
+    }
+    ptr += enc->minBytesPerChar;
+  }
+  if (ptr == *namePtr) {
+    *nextTokPtr = ptr;
+    return 0;
+  }
+  ptr += enc->minBytesPerChar;
+  c = toAscii(enc, ptr, end);
+  while (isSpace(c)) {
+    ptr += enc->minBytesPerChar;
+    c = toAscii(enc, ptr, end);
+  }
+  if (c != ASCII_QUOT && c != ASCII_APOS) {
+    *nextTokPtr = ptr;
+    return 0;
+  }
+  open = (char)c;
+  ptr += enc->minBytesPerChar;
+  *valPtr = ptr;
+  for (;; ptr += enc->minBytesPerChar) {
+    c = toAscii(enc, ptr, end);
+    if (c == open)
+      break;
+    if (!(ASCII_a <= c && c <= ASCII_z)
+        && !(ASCII_A <= c && c <= ASCII_Z)
+        && !(ASCII_0 <= c && c <= ASCII_9)
+        && c != ASCII_PERIOD
+        && c != ASCII_MINUS
+        && c != ASCII_UNDERSCORE) {
+      *nextTokPtr = ptr;
+      return 0;
+    }
+  }
+  *nextTokPtr = ptr + enc->minBytesPerChar;
+  return 1;
+}
+
+static const char KW_version[] = {
+  ASCII_v, ASCII_e, ASCII_r, ASCII_s, ASCII_i, ASCII_o, ASCII_n, '\0'
+};
+
+static const char KW_encoding[] = {
+  ASCII_e, ASCII_n, ASCII_c, ASCII_o, ASCII_d, ASCII_i, ASCII_n, ASCII_g, '\0'
+};
+
+static const char KW_standalone[] = {
+  ASCII_s, ASCII_t, ASCII_a, ASCII_n, ASCII_d, ASCII_a, ASCII_l, ASCII_o,
+  ASCII_n, ASCII_e, '\0'
+};
+
+static const char KW_yes[] = {
+  ASCII_y, ASCII_e, ASCII_s,  '\0'
+};
+
+static const char KW_no[] = {
+  ASCII_n, ASCII_o,  '\0'
+};
+
+static int
+doParseXmlDecl(const ENCODING *(*encodingFinder)(const ENCODING *,
+                                                 const char *,
+                                                 const char *),
+               int isGeneralTextEntity,
+               const ENCODING *enc,
+               const char *ptr,
+               const char *end,
+               const char **badPtr,
+               const char **versionPtr,
+               const char **versionEndPtr,
+               const char **encodingName,
+               const ENCODING **encoding,
+               int *standalone)
+{
+  const char *val = NULL;
+  const char *name = NULL;
+  const char *nameEnd = NULL;
+  ptr += 5 * enc->minBytesPerChar;
+  end -= 2 * enc->minBytesPerChar;
+  if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)
+      || !name) {
+    *badPtr = ptr;
+    return 0;
+  }
+  if (!XmlNameMatchesAscii(enc, name, nameEnd, KW_version)) {
+    if (!isGeneralTextEntity) {
+      *badPtr = name;
+      return 0;
+    }
+  }
+  else {
+    if (versionPtr)
+      *versionPtr = val;
+    if (versionEndPtr)
+      *versionEndPtr = ptr;
+    if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)) {
+      *badPtr = ptr;
+      return 0;
+    }
+    if (!name) {
+      if (isGeneralTextEntity) {
+        /* a TextDecl must have an EncodingDecl */
+        *badPtr = ptr;
+        return 0;
+      }
+      return 1;
+    }
+  }
+  if (XmlNameMatchesAscii(enc, name, nameEnd, KW_encoding)) {
+    int c = toAscii(enc, val, end);
+    if (!(ASCII_a <= c && c <= ASCII_z) && !(ASCII_A <= c && c <= ASCII_Z)) {
+      *badPtr = val;
+      return 0;
+    }
+    if (encodingName)
+      *encodingName = val;
+    if (encoding)
+      *encoding = encodingFinder(enc, val, ptr - enc->minBytesPerChar);
+    if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)) {
+      *badPtr = ptr;
+      return 0;
+    }
+    if (!name)
+      return 1;
+  }
+  if (!XmlNameMatchesAscii(enc, name, nameEnd, KW_standalone)
+      || isGeneralTextEntity) {
+    *badPtr = name;
+    return 0;
+  }
+  if (XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_yes)) {
+    if (standalone)
+      *standalone = 1;
+  }
+  else if (XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_no)) {
+    if (standalone)
+      *standalone = 0;
+  }
+  else {
+    *badPtr = val;
+    return 0;
+  }
+  while (isSpace(toAscii(enc, ptr, end)))
+    ptr += enc->minBytesPerChar;
+  if (ptr != end) {
+    *badPtr = ptr;
+    return 0;
+  }
+  return 1;
+}
+
+static int FASTCALL
+checkCharRefNumber(int result)
+{
+  switch (result >> 8) {
+  case 0xD8: case 0xD9: case 0xDA: case 0xDB:
+  case 0xDC: case 0xDD: case 0xDE: case 0xDF:
+    return -1;
+  case 0:
+    if (latin1_encoding.type[result] == BT_NONXML)
+      return -1;
+    break;
+  case 0xFF:
+    if (result == 0xFFFE || result == 0xFFFF)
+      return -1;
+    break;
+  }
+  return result;
+}
+
+int FASTCALL
+XmlUtf8Encode(int c, char *buf)
+{
+  enum {
+    /* minN is minimum legal resulting value for N byte sequence */
+    min2 = 0x80,
+    min3 = 0x800,
+    min4 = 0x10000
+  };
+
+  if (c < 0)
+    return 0;
+  if (c < min2) {
+    buf[0] = (char)(c | UTF8_cval1);
+    return 1;
+  }
+  if (c < min3) {
+    buf[0] = (char)((c >> 6) | UTF8_cval2);
+    buf[1] = (char)((c & 0x3f) | 0x80);
+    return 2;
+  }
+  if (c < min4) {
+    buf[0] = (char)((c >> 12) | UTF8_cval3);
+    buf[1] = (char)(((c >> 6) & 0x3f) | 0x80);
+    buf[2] = (char)((c & 0x3f) | 0x80);
+    return 3;
+  }
+  if (c < 0x110000) {
+    buf[0] = (char)((c >> 18) | UTF8_cval4);
+    buf[1] = (char)(((c >> 12) & 0x3f) | 0x80);
+    buf[2] = (char)(((c >> 6) & 0x3f) | 0x80);
+    buf[3] = (char)((c & 0x3f) | 0x80);
+    return 4;
+  }
+  return 0;
+}
+
+int FASTCALL
+XmlUtf16Encode(int charNum, unsigned short *buf)
+{
+  if (charNum < 0)
+    return 0;
+  if (charNum < 0x10000) {
+    buf[0] = (unsigned short)charNum;
+    return 1;
+  }
+  if (charNum < 0x110000) {
+    charNum -= 0x10000;
+    buf[0] = (unsigned short)((charNum >> 10) + 0xD800);
+    buf[1] = (unsigned short)((charNum & 0x3FF) + 0xDC00);
+    return 2;
+  }
+  return 0;
+}
+
+struct unknown_encoding {
+  struct normal_encoding normal;
+  int (*convert)(void *userData, const char *p);
+  void *userData;
+  unsigned short utf16[256];
+  char utf8[256][4];
+};
+
+#define AS_UNKNOWN_ENCODING(enc)  ((const struct unknown_encoding *) (enc))
+
+int
+XmlSizeOfUnknownEncoding(void)
+{
+  return sizeof(struct unknown_encoding);
+}
+
+static int PTRFASTCALL
+unknown_isName(const ENCODING *enc, const char *p)
+{
+  const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
+  int c = uenc->convert(uenc->userData, p);
+  if (c & ~0xFFFF)
+    return 0;
+  return UCS2_GET_NAMING(namePages, c >> 8, c & 0xFF);
+}
+
+static int PTRFASTCALL
+unknown_isNmstrt(const ENCODING *enc, const char *p)
+{
+  const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
+  int c = uenc->convert(uenc->userData, p);
+  if (c & ~0xFFFF)
+    return 0;
+  return UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xFF);
+}
+
+static int PTRFASTCALL
+unknown_isInvalid(const ENCODING *enc, const char *p)
+{
+  const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
+  int c = uenc->convert(uenc->userData, p);
+  return (c & ~0xFFFF) || checkCharRefNumber(c) < 0;
+}
+
+static void PTRCALL
+unknown_toUtf8(const ENCODING *enc,
+               const char **fromP, const char *fromLim,
+               char **toP, const char *toLim)
+{
+  const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
+  char buf[XML_UTF8_ENCODE_MAX];
+  for (;;) {
+    const char *utf8;
+    int n;
+    if (*fromP == fromLim)
+      break;
+    utf8 = uenc->utf8[(unsigned char)**fromP];
+    n = *utf8++;
+    if (n == 0) {
+      int c = uenc->convert(uenc->userData, *fromP);
+      n = XmlUtf8Encode(c, buf);
+      if (n > toLim - *toP)
+        break;
+      utf8 = buf;
+      *fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP]
+                 - (BT_LEAD2 - 2));
+    }
+    else {
+      if (n > toLim - *toP)
+        break;
+      (*fromP)++;
+    }
+    do {
+      *(*toP)++ = *utf8++;
+    } while (--n != 0);
+  }
+}
+
+static void PTRCALL
+unknown_toUtf16(const ENCODING *enc,
+                const char **fromP, const char *fromLim,
+                unsigned short **toP, const unsigned short *toLim)
+{
+  const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
+  while (*fromP != fromLim && *toP != toLim) {
+    unsigned short c = uenc->utf16[(unsigned char)**fromP];
+    if (c == 0) {
+      c = (unsigned short)
+          uenc->convert(uenc->userData, *fromP);
+      *fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP]
+                 - (BT_LEAD2 - 2));
+    }
+    else
+      (*fromP)++;
+    *(*toP)++ = c;
+  }
+}
+
+ENCODING *
+XmlInitUnknownEncoding(void *mem,
+                       int *table,
+                       CONVERTER convert, 
+                       void *userData)
+{
+  int i;
+  struct unknown_encoding *e = (struct unknown_encoding *)mem;
+  for (i = 0; i < (int)sizeof(struct normal_encoding); i++)
+    ((char *)mem)[i] = ((char *)&latin1_encoding)[i];
+  for (i = 0; i < 128; i++)
+    if (latin1_encoding.type[i] != BT_OTHER
+        && latin1_encoding.type[i] != BT_NONXML
+        && table[i] != i)
+      return 0;
+  for (i = 0; i < 256; i++) {
+    int c = table[i];
+    if (c == -1) {
+      e->normal.type[i] = BT_MALFORM;
+      /* This shouldn't really get used. */
+      e->utf16[i] = 0xFFFF;
+      e->utf8[i][0] = 1;
+      e->utf8[i][1] = 0;
+    }
+    else if (c < 0) {
+      if (c < -4)
+        return 0;
+      e->normal.type[i] = (unsigned char)(BT_LEAD2 - (c + 2));
+      e->utf8[i][0] = 0;
+      e->utf16[i] = 0;
+    }
+    else if (c < 0x80) {
+      if (latin1_encoding.type[c] != BT_OTHER
+          && latin1_encoding.type[c] != BT_NONXML
+          && c != i)
+        return 0;
+      e->normal.type[i] = latin1_encoding.type[c];
+      e->utf8[i][0] = 1;
+      e->utf8[i][1] = (char)c;
+      e->utf16[i] = (unsigned short)(c == 0 ? 0xFFFF : c);
+    }
+    else if (checkCharRefNumber(c) < 0) {
+      e->normal.type[i] = BT_NONXML;
+      /* This shouldn't really get used. */
+      e->utf16[i] = 0xFFFF;
+      e->utf8[i][0] = 1;
+      e->utf8[i][1] = 0;
+    }
+    else {
+      if (c > 0xFFFF)
+        return 0;
+      if (UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xff))
+        e->normal.type[i] = BT_NMSTRT;
+      else if (UCS2_GET_NAMING(namePages, c >> 8, c & 0xff))
+        e->normal.type[i] = BT_NAME;
+      else
+        e->normal.type[i] = BT_OTHER;
+      e->utf8[i][0] = (char)XmlUtf8Encode(c, e->utf8[i] + 1);
+      e->utf16[i] = (unsigned short)c;
+    }
+  }
+  e->userData = userData;
+  e->convert = convert;
+  if (convert) {
+    e->normal.isName2 = unknown_isName;
+    e->normal.isName3 = unknown_isName;
+    e->normal.isName4 = unknown_isName;
+    e->normal.isNmstrt2 = unknown_isNmstrt;
+    e->normal.isNmstrt3 = unknown_isNmstrt;
+    e->normal.isNmstrt4 = unknown_isNmstrt;
+    e->normal.isInvalid2 = unknown_isInvalid;
+    e->normal.isInvalid3 = unknown_isInvalid;
+    e->normal.isInvalid4 = unknown_isInvalid;
+  }
+  e->normal.enc.utf8Convert = unknown_toUtf8;
+  e->normal.enc.utf16Convert = unknown_toUtf16;
+  return &(e->normal.enc);
+}
+
+/* If this enumeration is changed, getEncodingIndex and encodings
+must also be changed. */
+enum {
+  UNKNOWN_ENC = -1,
+  ISO_8859_1_ENC = 0,
+  US_ASCII_ENC,
+  UTF_8_ENC,
+  UTF_16_ENC,
+  UTF_16BE_ENC,
+  UTF_16LE_ENC,
+  /* must match encodingNames up to here */
+  NO_ENC
+};
+
+static const char KW_ISO_8859_1[] = {
+  ASCII_I, ASCII_S, ASCII_O, ASCII_MINUS, ASCII_8, ASCII_8, ASCII_5, ASCII_9,
+  ASCII_MINUS, ASCII_1, '\0'
+};
+static const char KW_US_ASCII[] = {
+  ASCII_U, ASCII_S, ASCII_MINUS, ASCII_A, ASCII_S, ASCII_C, ASCII_I, ASCII_I,
+  '\0'
+};
+static const char KW_UTF_8[] =  {
+  ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_8, '\0'
+};
+static const char KW_UTF_16[] = {
+  ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, '\0'
+};
+static const char KW_UTF_16BE[] = {
+  ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, ASCII_B, ASCII_E,
+  '\0'
+};
+static const char KW_UTF_16LE[] = {
+  ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, ASCII_L, ASCII_E,
+  '\0'
+};
+
+static int FASTCALL
+getEncodingIndex(const char *name)
+{
+  static const char *encodingNames[] = {
+    KW_ISO_8859_1,
+    KW_US_ASCII,
+    KW_UTF_8,
+    KW_UTF_16,
+    KW_UTF_16BE,
+    KW_UTF_16LE,
+  };
+  int i;
+  if (name == NULL)
+    return NO_ENC;
+  for (i = 0; i < (int)(sizeof(encodingNames)/sizeof(encodingNames[0])); i++)
+    if (streqci(name, encodingNames[i]))
+      return i;
+  return UNKNOWN_ENC;
+}
+
+/* For binary compatibility, we store the index of the encoding
+   specified at initialization in the isUtf16 member.
+*/
+
+#define INIT_ENC_INDEX(enc) ((int)(enc)->initEnc.isUtf16)
+#define SET_INIT_ENC_INDEX(enc, i) ((enc)->initEnc.isUtf16 = (char)i)
+
+/* This is what detects the encoding.  encodingTable maps from
+   encoding indices to encodings; INIT_ENC_INDEX(enc) is the index of
+   the external (protocol) specified encoding; state is
+   XML_CONTENT_STATE if we're parsing an external text entity, and
+   XML_PROLOG_STATE otherwise.
+*/
+
+
+static int
+initScan(const ENCODING **encodingTable,
+         const INIT_ENCODING *enc,
+         int state,
+         const char *ptr,
+         const char *end,
+         const char **nextTokPtr)
+{
+  const ENCODING **encPtr;
+
+  if (ptr == end)
+    return XML_TOK_NONE;
+  encPtr = enc->encPtr;
+  if (ptr + 1 == end) {
+    /* only a single byte available for auto-detection */
+#ifndef XML_DTD /* FIXME */
+    /* a well-formed document entity must have more than one byte */
+    if (state != XML_CONTENT_STATE)
+      return XML_TOK_PARTIAL;
+#endif
+    /* so we're parsing an external text entity... */
+    /* if UTF-16 was externally specified, then we need at least 2 bytes */
+    switch (INIT_ENC_INDEX(enc)) {
+    case UTF_16_ENC:
+    case UTF_16LE_ENC:
+    case UTF_16BE_ENC:
+      return XML_TOK_PARTIAL;
+    }
+    switch ((unsigned char)*ptr) {
+    case 0xFE:
+    case 0xFF:
+    case 0xEF: /* possibly first byte of UTF-8 BOM */
+      if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC
+          && state == XML_CONTENT_STATE)
+        break;
+      /* fall through */
+    case 0x00:
+    case 0x3C:
+      return XML_TOK_PARTIAL;
+    }
+  }
+  else {
+    switch (((unsigned char)ptr[0] << 8) | (unsigned char)ptr[1]) {
+    case 0xFEFF:
+      if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC
+          && state == XML_CONTENT_STATE)
+        break;
+      *nextTokPtr = ptr + 2;
+      *encPtr = encodingTable[UTF_16BE_ENC];
+      return XML_TOK_BOM;
+    /* 00 3C is handled in the default case */
+    case 0x3C00:
+      if ((INIT_ENC_INDEX(enc) == UTF_16BE_ENC
+           || INIT_ENC_INDEX(enc) == UTF_16_ENC)
+          && state == XML_CONTENT_STATE)
+        break;
+      *encPtr = encodingTable[UTF_16LE_ENC];
+      return XmlTok(*encPtr, state, ptr, end, nextTokPtr);
+    case 0xFFFE:
+      if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC
+          && state == XML_CONTENT_STATE)
+        break;
+      *nextTokPtr = ptr + 2;
+      *encPtr = encodingTable[UTF_16LE_ENC];
+      return XML_TOK_BOM;
+    case 0xEFBB:
+      /* Maybe a UTF-8 BOM (EF BB BF) */
+      /* If there's an explicitly specified (external) encoding
+         of ISO-8859-1 or some flavour of UTF-16
+         and this is an external text entity,
+         don't look for the BOM,
+         because it might be a legal data.
+      */
+      if (state == XML_CONTENT_STATE) {
+        int e = INIT_ENC_INDEX(enc);
+        if (e == ISO_8859_1_ENC || e == UTF_16BE_ENC
+            || e == UTF_16LE_ENC || e == UTF_16_ENC)
+          break;
+      }
+      if (ptr + 2 == end)
+        return XML_TOK_PARTIAL;
+      if ((unsigned char)ptr[2] == 0xBF) {
+        *nextTokPtr = ptr + 3;
+        *encPtr = encodingTable[UTF_8_ENC];
+        return XML_TOK_BOM;
+      }
+      break;
+    default:
+      if (ptr[0] == '\0') {
+        /* 0 isn't a legal data character. Furthermore a document
+           entity can only start with ASCII characters.  So the only
+           way this can fail to be big-endian UTF-16 if it it's an
+           external parsed general entity that's labelled as
+           UTF-16LE.
+        */
+        if (state == XML_CONTENT_STATE && INIT_ENC_INDEX(enc) == UTF_16LE_ENC)
+          break;
+        *encPtr = encodingTable[UTF_16BE_ENC];
+        return XmlTok(*encPtr, state, ptr, end, nextTokPtr);
+      }
+      else if (ptr[1] == '\0') {
+        /* We could recover here in the case:
+            - parsing an external entity
+            - second byte is 0
+            - no externally specified encoding
+            - no encoding declaration
+           by assuming UTF-16LE.  But we don't, because this would mean when
+           presented just with a single byte, we couldn't reliably determine
+           whether we needed further bytes.
+        */
+        if (state == XML_CONTENT_STATE)
+          break;
+        *encPtr = encodingTable[UTF_16LE_ENC];
+        return XmlTok(*encPtr, state, ptr, end, nextTokPtr);
+      }
+      break;
+    }
+  }
+  *encPtr = encodingTable[INIT_ENC_INDEX(enc)];
+  return XmlTok(*encPtr, state, ptr, end, nextTokPtr);
+}
+
+
+#define NS(x) x
+#define ns(x) x
+#include "xmltok_ns.c"
+#undef NS
+#undef ns
+
+#ifdef XML_NS
+
+#define NS(x) x ## NS
+#define ns(x) x ## _ns
+
+#include "xmltok_ns.c"
+
+#undef NS
+#undef ns
+
+ENCODING *
+XmlInitUnknownEncodingNS(void *mem,
+                         int *table,
+                         CONVERTER convert, 
+                         void *userData)
+{
+  ENCODING *enc = XmlInitUnknownEncoding(mem, table, convert, userData);
+  if (enc)
+    ((struct normal_encoding *)enc)->type[ASCII_COLON] = BT_COLON;
+  return enc;
+}
+
+#endif /* XML_NS */
diff --git a/lib/libexpat/lib/xmltok.h b/lib/libexpat/lib/xmltok.h
new file mode 100644
index 00000000000..3d776be71fc
--- /dev/null
+++ b/lib/libexpat/lib/xmltok.h
@@ -0,0 +1,315 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+#ifndef XmlTok_INCLUDED
+#define XmlTok_INCLUDED 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* The following token may be returned by XmlContentTok */
+#define XML_TOK_TRAILING_RSQB -5 /* ] or ]] at the end of the scan; might be
+                                    start of illegal ]]> sequence */
+/* The following tokens may be returned by both XmlPrologTok and
+   XmlContentTok.
+*/
+#define XML_TOK_NONE -4          /* The string to be scanned is empty */
+#define XML_TOK_TRAILING_CR -3   /* A CR at the end of the scan;
+                                    might be part of CRLF sequence */
+#define XML_TOK_PARTIAL_CHAR -2  /* only part of a multibyte sequence */
+#define XML_TOK_PARTIAL -1       /* only part of a token */
+#define XML_TOK_INVALID 0
+
+/* The following tokens are returned by XmlContentTok; some are also
+   returned by XmlAttributeValueTok, XmlEntityTok, XmlCdataSectionTok.
+*/
+#define XML_TOK_START_TAG_WITH_ATTS 1
+#define XML_TOK_START_TAG_NO_ATTS 2
+#define XML_TOK_EMPTY_ELEMENT_WITH_ATTS 3 /* empty element tag <e/> */
+#define XML_TOK_EMPTY_ELEMENT_NO_ATTS 4
+#define XML_TOK_END_TAG 5
+#define XML_TOK_DATA_CHARS 6
+#define XML_TOK_DATA_NEWLINE 7
+#define XML_TOK_CDATA_SECT_OPEN 8
+#define XML_TOK_ENTITY_REF 9
+#define XML_TOK_CHAR_REF 10               /* numeric character reference */
+
+/* The following tokens may be returned by both XmlPrologTok and
+   XmlContentTok.
+*/
+#define XML_TOK_PI 11                     /* processing instruction */
+#define XML_TOK_XML_DECL 12               /* XML decl or text decl */
+#define XML_TOK_COMMENT 13
+#define XML_TOK_BOM 14                    /* Byte order mark */
+
+/* The following tokens are returned only by XmlPrologTok */
+#define XML_TOK_PROLOG_S 15
+#define XML_TOK_DECL_OPEN 16              /* <!foo */
+#define XML_TOK_DECL_CLOSE 17             /* > */
+#define XML_TOK_NAME 18
+#define XML_TOK_NMTOKEN 19
+#define XML_TOK_POUND_NAME 20             /* #name */
+#define XML_TOK_OR 21                     /* | */
+#define XML_TOK_PERCENT 22
+#define XML_TOK_OPEN_PAREN 23
+#define XML_TOK_CLOSE_PAREN 24
+#define XML_TOK_OPEN_BRACKET 25
+#define XML_TOK_CLOSE_BRACKET 26
+#define XML_TOK_LITERAL 27
+#define XML_TOK_PARAM_ENTITY_REF 28
+#define XML_TOK_INSTANCE_START 29
+
+/* The following occur only in element type declarations */
+#define XML_TOK_NAME_QUESTION 30          /* name? */
+#define XML_TOK_NAME_ASTERISK 31          /* name* */
+#define XML_TOK_NAME_PLUS 32              /* name+ */
+#define XML_TOK_COND_SECT_OPEN 33         /* <![ */
+#define XML_TOK_COND_SECT_CLOSE 34        /* ]]> */
+#define XML_TOK_CLOSE_PAREN_QUESTION 35   /* )? */
+#define XML_TOK_CLOSE_PAREN_ASTERISK 36   /* )* */
+#define XML_TOK_CLOSE_PAREN_PLUS 37       /* )+ */
+#define XML_TOK_COMMA 38
+
+/* The following token is returned only by XmlAttributeValueTok */
+#define XML_TOK_ATTRIBUTE_VALUE_S 39
+
+/* The following token is returned only by XmlCdataSectionTok */
+#define XML_TOK_CDATA_SECT_CLOSE 40
+
+/* With namespace processing this is returned by XmlPrologTok for a
+   name with a colon.
+*/
+#define XML_TOK_PREFIXED_NAME 41
+
+#ifdef XML_DTD
+#define XML_TOK_IGNORE_SECT 42
+#endif /* XML_DTD */
+
+#ifdef XML_DTD
+#define XML_N_STATES 4
+#else /* not XML_DTD */
+#define XML_N_STATES 3
+#endif /* not XML_DTD */
+
+#define XML_PROLOG_STATE 0
+#define XML_CONTENT_STATE 1
+#define XML_CDATA_SECTION_STATE 2
+#ifdef XML_DTD
+#define XML_IGNORE_SECTION_STATE 3
+#endif /* XML_DTD */
+
+#define XML_N_LITERAL_TYPES 2
+#define XML_ATTRIBUTE_VALUE_LITERAL 0
+#define XML_ENTITY_VALUE_LITERAL 1
+
+/* The size of the buffer passed to XmlUtf8Encode must be at least this. */
+#define XML_UTF8_ENCODE_MAX 4
+/* The size of the buffer passed to XmlUtf16Encode must be at least this. */
+#define XML_UTF16_ENCODE_MAX 2
+
+typedef struct position {
+  /* first line and first column are 0 not 1 */
+  unsigned long lineNumber;
+  unsigned long columnNumber;
+} POSITION;
+
+typedef struct {
+  const char *name;
+  const char *valuePtr;
+  const char *valueEnd;
+  char normalized;
+} ATTRIBUTE;
+
+struct encoding;
+typedef struct encoding ENCODING;
+
+typedef int (PTRCALL *SCANNER)(const ENCODING *,
+                               const char *,
+                               const char *,
+                               const char **);
+
+struct encoding {
+  SCANNER scanners[XML_N_STATES];
+  SCANNER literalScanners[XML_N_LITERAL_TYPES];
+  int (PTRCALL *sameName)(const ENCODING *,
+                          const char *,
+                          const char *);
+  int (PTRCALL *nameMatchesAscii)(const ENCODING *,
+                                  const char *,
+                                  const char *,
+                                  const char *);
+  int (PTRFASTCALL *nameLength)(const ENCODING *, const char *);
+  const char *(PTRFASTCALL *skipS)(const ENCODING *, const char *);
+  int (PTRCALL *getAtts)(const ENCODING *enc,
+                         const char *ptr,
+                         int attsMax,
+                         ATTRIBUTE *atts);
+  int (PTRFASTCALL *charRefNumber)(const ENCODING *enc, const char *ptr);
+  int (PTRCALL *predefinedEntityName)(const ENCODING *,
+                                      const char *,
+                                      const char *);
+  void (PTRCALL *updatePosition)(const ENCODING *,
+                                 const char *ptr,
+                                 const char *end,
+                                 POSITION *);
+  int (PTRCALL *isPublicId)(const ENCODING *enc,
+                            const char *ptr,
+                            const char *end,
+                            const char **badPtr);
+  void (PTRCALL *utf8Convert)(const ENCODING *enc,
+                              const char **fromP,
+                              const char *fromLim,
+                              char **toP,
+                              const char *toLim);
+  void (PTRCALL *utf16Convert)(const ENCODING *enc,
+                               const char **fromP,
+                               const char *fromLim,
+                               unsigned short **toP,
+                               const unsigned short *toLim);
+  int minBytesPerChar;
+  char isUtf8;
+  char isUtf16;
+};
+
+/* Scan the string starting at ptr until the end of the next complete
+   token, but do not scan past eptr.  Return an integer giving the
+   type of token.
+
+   Return XML_TOK_NONE when ptr == eptr; nextTokPtr will not be set.
+
+   Return XML_TOK_PARTIAL when the string does not contain a complete
+   token; nextTokPtr will not be set.
+
+   Return XML_TOK_INVALID when the string does not start a valid
+   token; nextTokPtr will be set to point to the character which made
+   the token invalid.
+
+   Otherwise the string starts with a valid token; nextTokPtr will be
+   set to point to the character following the end of that token.
+
+   Each data character counts as a single token, but adjacent data
+   characters may be returned together.  Similarly for characters in
+   the prolog outside literals, comments and processing instructions.
+*/
+
+
+#define XmlTok(enc, state, ptr, end, nextTokPtr) \
+  (((enc)->scanners[state])(enc, ptr, end, nextTokPtr))
+
+#define XmlPrologTok(enc, ptr, end, nextTokPtr) \
+   XmlTok(enc, XML_PROLOG_STATE, ptr, end, nextTokPtr)
+
+#define XmlContentTok(enc, ptr, end, nextTokPtr) \
+   XmlTok(enc, XML_CONTENT_STATE, ptr, end, nextTokPtr)
+
+#define XmlCdataSectionTok(enc, ptr, end, nextTokPtr) \
+   XmlTok(enc, XML_CDATA_SECTION_STATE, ptr, end, nextTokPtr)
+
+#ifdef XML_DTD
+
+#define XmlIgnoreSectionTok(enc, ptr, end, nextTokPtr) \
+   XmlTok(enc, XML_IGNORE_SECTION_STATE, ptr, end, nextTokPtr)
+
+#endif /* XML_DTD */
+
+/* This is used for performing a 2nd-level tokenization on the content
+   of a literal that has already been returned by XmlTok.
+*/
+#define XmlLiteralTok(enc, literalType, ptr, end, nextTokPtr) \
+  (((enc)->literalScanners[literalType])(enc, ptr, end, nextTokPtr))
+
+#define XmlAttributeValueTok(enc, ptr, end, nextTokPtr) \
+   XmlLiteralTok(enc, XML_ATTRIBUTE_VALUE_LITERAL, ptr, end, nextTokPtr)
+
+#define XmlEntityValueTok(enc, ptr, end, nextTokPtr) \
+   XmlLiteralTok(enc, XML_ENTITY_VALUE_LITERAL, ptr, end, nextTokPtr)
+
+#define XmlSameName(enc, ptr1, ptr2) (((enc)->sameName)(enc, ptr1, ptr2))
+
+#define XmlNameMatchesAscii(enc, ptr1, end1, ptr2) \
+  (((enc)->nameMatchesAscii)(enc, ptr1, end1, ptr2))
+
+#define XmlNameLength(enc, ptr) \
+  (((enc)->nameLength)(enc, ptr))
+
+#define XmlSkipS(enc, ptr) \
+  (((enc)->skipS)(enc, ptr))
+
+#define XmlGetAttributes(enc, ptr, attsMax, atts) \
+  (((enc)->getAtts)(enc, ptr, attsMax, atts))
+
+#define XmlCharRefNumber(enc, ptr) \
+  (((enc)->charRefNumber)(enc, ptr))
+
+#define XmlPredefinedEntityName(enc, ptr, end) \
+  (((enc)->predefinedEntityName)(enc, ptr, end))
+
+#define XmlUpdatePosition(enc, ptr, end, pos) \
+  (((enc)->updatePosition)(enc, ptr, end, pos))
+
+#define XmlIsPublicId(enc, ptr, end, badPtr) \
+  (((enc)->isPublicId)(enc, ptr, end, badPtr))
+
+#define XmlUtf8Convert(enc, fromP, fromLim, toP, toLim) \
+  (((enc)->utf8Convert)(enc, fromP, fromLim, toP, toLim))
+
+#define XmlUtf16Convert(enc, fromP, fromLim, toP, toLim) \
+  (((enc)->utf16Convert)(enc, fromP, fromLim, toP, toLim))
+
+typedef struct {
+  ENCODING initEnc;
+  const ENCODING **encPtr;
+} INIT_ENCODING;
+
+int XmlParseXmlDecl(int isGeneralTextEntity,
+                    const ENCODING *enc,
+                    const char *ptr,
+                    const char *end,
+                    const char **badPtr,
+                    const char **versionPtr,
+                    const char **versionEndPtr,
+                    const char **encodingNamePtr,
+                    const ENCODING **namedEncodingPtr,
+                    int *standalonePtr);
+
+int XmlInitEncoding(INIT_ENCODING *, const ENCODING **, const char *name);
+const ENCODING *XmlGetUtf8InternalEncoding(void);
+const ENCODING *XmlGetUtf16InternalEncoding(void);
+int FASTCALL XmlUtf8Encode(int charNumber, char *buf);
+int FASTCALL XmlUtf16Encode(int charNumber, unsigned short *buf);
+int XmlSizeOfUnknownEncoding(void);
+
+typedef int (*CONVERTER)(void *userData, const char *p);
+
+ENCODING *
+XmlInitUnknownEncoding(void *mem,
+                       int *table,
+                       CONVERTER convert,
+                       void *userData);
+
+int XmlParseXmlDeclNS(int isGeneralTextEntity,
+                      const ENCODING *enc,
+                      const char *ptr,
+                      const char *end,
+                      const char **badPtr,
+                      const char **versionPtr,
+                      const char **versionEndPtr,
+                      const char **encodingNamePtr,
+                      const ENCODING **namedEncodingPtr,
+                      int *standalonePtr);
+
+int XmlInitEncodingNS(INIT_ENCODING *, const ENCODING **, const char *name);
+const ENCODING *XmlGetUtf8InternalEncodingNS(void);
+const ENCODING *XmlGetUtf16InternalEncodingNS(void);
+ENCODING *
+XmlInitUnknownEncodingNS(void *mem,
+                         int *table,
+                         CONVERTER convert,
+                         void *userData);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* not XmlTok_INCLUDED */
diff --git a/lib/libexpat/lib/xmltok_impl.c b/lib/libexpat/lib/xmltok_impl.c
new file mode 100644
index 00000000000..84a32679272
--- /dev/null
+++ b/lib/libexpat/lib/xmltok_impl.c
@@ -0,0 +1,1779 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+   See the file COPYING for copying permission.
+*/
+
+#ifndef IS_INVALID_CHAR
+#define IS_INVALID_CHAR(enc, ptr, n) (0)
+#endif
+
+#define INVALID_LEAD_CASE(n, ptr, nextTokPtr) \
+    case BT_LEAD ## n: \
+      if (end - ptr < n) \
+        return XML_TOK_PARTIAL_CHAR; \
+      if (IS_INVALID_CHAR(enc, ptr, n)) { \
+        *(nextTokPtr) = (ptr); \
+        return XML_TOK_INVALID; \
+      } \
+      ptr += n; \
+      break;
+
+#define INVALID_CASES(ptr, nextTokPtr) \
+  INVALID_LEAD_CASE(2, ptr, nextTokPtr) \
+  INVALID_LEAD_CASE(3, ptr, nextTokPtr) \
+  INVALID_LEAD_CASE(4, ptr, nextTokPtr) \
+  case BT_NONXML: \
+  case BT_MALFORM: \
+  case BT_TRAIL: \
+    *(nextTokPtr) = (ptr); \
+    return XML_TOK_INVALID;
+
+#define CHECK_NAME_CASE(n, enc, ptr, end, nextTokPtr) \
+   case BT_LEAD ## n: \
+     if (end - ptr < n) \
+       return XML_TOK_PARTIAL_CHAR; \
+     if (!IS_NAME_CHAR(enc, ptr, n)) { \
+       *nextTokPtr = ptr; \
+       return XML_TOK_INVALID; \
+     } \
+     ptr += n; \
+     break;
+
+#define CHECK_NAME_CASES(enc, ptr, end, nextTokPtr) \
+  case BT_NONASCII: \
+    if (!IS_NAME_CHAR_MINBPC(enc, ptr)) { \
+      *nextTokPtr = ptr; \
+      return XML_TOK_INVALID; \
+    } \
+  case BT_NMSTRT: \
+  case BT_HEX: \
+  case BT_DIGIT: \
+  case BT_NAME: \
+  case BT_MINUS: \
+    ptr += MINBPC(enc); \
+    break; \
+  CHECK_NAME_CASE(2, enc, ptr, end, nextTokPtr) \
+  CHECK_NAME_CASE(3, enc, ptr, end, nextTokPtr) \
+  CHECK_NAME_CASE(4, enc, ptr, end, nextTokPtr)
+
+#define CHECK_NMSTRT_CASE(n, enc, ptr, end, nextTokPtr) \
+   case BT_LEAD ## n: \
+     if (end - ptr < n) \
+       return XML_TOK_PARTIAL_CHAR; \
+     if (!IS_NMSTRT_CHAR(enc, ptr, n)) { \
+       *nextTokPtr = ptr; \
+       return XML_TOK_INVALID; \
+     } \
+     ptr += n; \
+     break;
+
+#define CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr) \
+  case BT_NONASCII: \
+    if (!IS_NMSTRT_CHAR_MINBPC(enc, ptr)) { \
+      *nextTokPtr = ptr; \
+      return XML_TOK_INVALID; \
+    } \
+  case BT_NMSTRT: \
+  case BT_HEX: \
+    ptr += MINBPC(enc); \
+    break; \
+  CHECK_NMSTRT_CASE(2, enc, ptr, end, nextTokPtr) \
+  CHECK_NMSTRT_CASE(3, enc, ptr, end, nextTokPtr) \
+  CHECK_NMSTRT_CASE(4, enc, ptr, end, nextTokPtr)
+
+#ifndef PREFIX
+#define PREFIX(ident) ident
+#endif
+
+/* ptr points to character following "<!-" */
+
+static int PTRCALL
+PREFIX(scanComment)(const ENCODING *enc, const char *ptr,
+                    const char *end, const char **nextTokPtr)
+{
+  if (ptr != end) {
+    if (!CHAR_MATCHES(enc, ptr, ASCII_MINUS)) {
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+    ptr += MINBPC(enc);
+    while (ptr != end) {
+      switch (BYTE_TYPE(enc, ptr)) {
+      INVALID_CASES(ptr, nextTokPtr)
+      case BT_MINUS:
+        if ((ptr += MINBPC(enc)) == end)
+          return XML_TOK_PARTIAL;
+        if (CHAR_MATCHES(enc, ptr, ASCII_MINUS)) {
+          if ((ptr += MINBPC(enc)) == end)
+            return XML_TOK_PARTIAL;
+          if (!CHAR_MATCHES(enc, ptr, ASCII_GT)) {
+            *nextTokPtr = ptr;
+            return XML_TOK_INVALID;
+          }
+          *nextTokPtr = ptr + MINBPC(enc);
+          return XML_TOK_COMMENT;
+        }
+        break;
+      default:
+        ptr += MINBPC(enc);
+        break;
+      }
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+/* ptr points to character following "<!" */
+
+static int PTRCALL
+PREFIX(scanDecl)(const ENCODING *enc, const char *ptr,
+                 const char *end, const char **nextTokPtr)
+{
+  if (ptr == end)
+    return XML_TOK_PARTIAL;
+  switch (BYTE_TYPE(enc, ptr)) {
+  case BT_MINUS:
+    return PREFIX(scanComment)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+  case BT_LSQB:
+    *nextTokPtr = ptr + MINBPC(enc);
+    return XML_TOK_COND_SECT_OPEN;
+  case BT_NMSTRT:
+  case BT_HEX:
+    ptr += MINBPC(enc);
+    break;
+  default:
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  }
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    case BT_PERCNT:
+      if (ptr + MINBPC(enc) == end)
+        return XML_TOK_PARTIAL;
+      /* don't allow <!ENTITY% foo "whatever"> */
+      switch (BYTE_TYPE(enc, ptr + MINBPC(enc))) {
+      case BT_S: case BT_CR: case BT_LF: case BT_PERCNT:
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      /* fall through */
+    case BT_S: case BT_CR: case BT_LF:
+      *nextTokPtr = ptr;
+      return XML_TOK_DECL_OPEN;
+    case BT_NMSTRT:
+    case BT_HEX:
+      ptr += MINBPC(enc);
+      break;
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+static int PTRCALL
+PREFIX(checkPiTarget)(const ENCODING *enc, const char *ptr,
+                      const char *end, int *tokPtr)
+{
+  int upper = 0;
+  *tokPtr = XML_TOK_PI;
+  if (end - ptr != MINBPC(enc)*3)
+    return 1;
+  switch (BYTE_TO_ASCII(enc, ptr)) {
+  case ASCII_x:
+    break;
+  case ASCII_X:
+    upper = 1;
+    break;
+  default:
+    return 1;
+  }
+  ptr += MINBPC(enc);
+  switch (BYTE_TO_ASCII(enc, ptr)) {
+  case ASCII_m:
+    break;
+  case ASCII_M:
+    upper = 1;
+    break;
+  default:
+    return 1;
+  }
+  ptr += MINBPC(enc);
+  switch (BYTE_TO_ASCII(enc, ptr)) {
+  case ASCII_l:
+    break;
+  case ASCII_L:
+    upper = 1;
+    break;
+  default:
+    return 1;
+  }
+  if (upper)
+    return 0;
+  *tokPtr = XML_TOK_XML_DECL;
+  return 1;
+}
+
+/* ptr points to character following "<?" */
+
+static int PTRCALL
+PREFIX(scanPi)(const ENCODING *enc, const char *ptr,
+               const char *end, const char **nextTokPtr)
+{
+  int tok;
+  const char *target = ptr;
+  if (ptr == end)
+    return XML_TOK_PARTIAL;
+  switch (BYTE_TYPE(enc, ptr)) {
+  CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
+  default:
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  }
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
+    case BT_S: case BT_CR: case BT_LF:
+      if (!PREFIX(checkPiTarget)(enc, target, ptr, &tok)) {
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      ptr += MINBPC(enc);
+      while (ptr != end) {
+        switch (BYTE_TYPE(enc, ptr)) {
+        INVALID_CASES(ptr, nextTokPtr)
+        case BT_QUEST:
+          ptr += MINBPC(enc);
+          if (ptr == end)
+            return XML_TOK_PARTIAL;
+          if (CHAR_MATCHES(enc, ptr, ASCII_GT)) {
+            *nextTokPtr = ptr + MINBPC(enc);
+            return tok;
+          }
+          break;
+        default:
+          ptr += MINBPC(enc);
+          break;
+        }
+      }
+      return XML_TOK_PARTIAL;
+    case BT_QUEST:
+      if (!PREFIX(checkPiTarget)(enc, target, ptr, &tok)) {
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      ptr += MINBPC(enc);
+      if (ptr == end)
+        return XML_TOK_PARTIAL;
+      if (CHAR_MATCHES(enc, ptr, ASCII_GT)) {
+        *nextTokPtr = ptr + MINBPC(enc);
+        return tok;
+      }
+      /* fall through */
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+static int PTRCALL
+PREFIX(scanCdataSection)(const ENCODING *enc, const char *ptr,
+                         const char *end, const char **nextTokPtr)
+{
+  static const char CDATA_LSQB[] = { ASCII_C, ASCII_D, ASCII_A,
+                                     ASCII_T, ASCII_A, ASCII_LSQB };
+  int i;
+  /* CDATA[ */
+  if (end - ptr < 6 * MINBPC(enc))
+    return XML_TOK_PARTIAL;
+  for (i = 0; i < 6; i++, ptr += MINBPC(enc)) {
+    if (!CHAR_MATCHES(enc, ptr, CDATA_LSQB[i])) {
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  }
+  *nextTokPtr = ptr;
+  return XML_TOK_CDATA_SECT_OPEN;
+}
+
+static int PTRCALL
+PREFIX(cdataSectionTok)(const ENCODING *enc, const char *ptr,
+                        const char *end, const char **nextTokPtr)
+{
+  if (ptr == end)
+    return XML_TOK_NONE;
+  if (MINBPC(enc) > 1) {
+    size_t n = end - ptr;
+    if (n & (MINBPC(enc) - 1)) {
+      n &= ~(MINBPC(enc) - 1);
+      if (n == 0)
+        return XML_TOK_PARTIAL;
+      end = ptr + n;
+    }
+  }
+  switch (BYTE_TYPE(enc, ptr)) {
+  case BT_RSQB:
+    ptr += MINBPC(enc);
+    if (ptr == end)
+      return XML_TOK_PARTIAL;
+    if (!CHAR_MATCHES(enc, ptr, ASCII_RSQB))
+      break;
+    ptr += MINBPC(enc);
+    if (ptr == end)
+      return XML_TOK_PARTIAL;
+    if (!CHAR_MATCHES(enc, ptr, ASCII_GT)) {
+      ptr -= MINBPC(enc);
+      break;
+    }
+    *nextTokPtr = ptr + MINBPC(enc);
+    return XML_TOK_CDATA_SECT_CLOSE;
+  case BT_CR:
+    ptr += MINBPC(enc);
+    if (ptr == end)
+      return XML_TOK_PARTIAL;
+    if (BYTE_TYPE(enc, ptr) == BT_LF)
+      ptr += MINBPC(enc);
+    *nextTokPtr = ptr;
+    return XML_TOK_DATA_NEWLINE;
+  case BT_LF:
+    *nextTokPtr = ptr + MINBPC(enc);
+    return XML_TOK_DATA_NEWLINE;
+  INVALID_CASES(ptr, nextTokPtr)
+  default:
+    ptr += MINBPC(enc);
+    break;
+  }
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+#define LEAD_CASE(n) \
+    case BT_LEAD ## n: \
+      if (end - ptr < n || IS_INVALID_CHAR(enc, ptr, n)) { \
+        *nextTokPtr = ptr; \
+        return XML_TOK_DATA_CHARS; \
+      } \
+      ptr += n; \
+      break;
+    LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
+#undef LEAD_CASE
+    case BT_NONXML:
+    case BT_MALFORM:
+    case BT_TRAIL:
+    case BT_CR:
+    case BT_LF:
+    case BT_RSQB:
+      *nextTokPtr = ptr;
+      return XML_TOK_DATA_CHARS;
+    default:
+      ptr += MINBPC(enc);
+      break;
+    }
+  }
+  *nextTokPtr = ptr;
+  return XML_TOK_DATA_CHARS;
+}
+
+/* ptr points to character following "</" */
+
+static int PTRCALL
+PREFIX(scanEndTag)(const ENCODING *enc, const char *ptr,
+                   const char *end, const char **nextTokPtr)
+{
+  if (ptr == end)
+    return XML_TOK_PARTIAL;
+  switch (BYTE_TYPE(enc, ptr)) {
+  CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
+  default:
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  }
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
+    case BT_S: case BT_CR: case BT_LF:
+      for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
+        switch (BYTE_TYPE(enc, ptr)) {
+        case BT_S: case BT_CR: case BT_LF:
+          break;
+        case BT_GT:
+          *nextTokPtr = ptr + MINBPC(enc);
+          return XML_TOK_END_TAG;
+        default:
+          *nextTokPtr = ptr;
+          return XML_TOK_INVALID;
+        }
+      }
+      return XML_TOK_PARTIAL;
+#ifdef XML_NS
+    case BT_COLON:
+      /* no need to check qname syntax here,
+         since end-tag must match exactly */
+      ptr += MINBPC(enc);
+      break;
+#endif
+    case BT_GT:
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_END_TAG;
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+/* ptr points to character following "&#X" */
+
+static int PTRCALL
+PREFIX(scanHexCharRef)(const ENCODING *enc, const char *ptr,
+                       const char *end, const char **nextTokPtr)
+{
+  if (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    case BT_DIGIT:
+    case BT_HEX:
+      break;
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+    for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
+      switch (BYTE_TYPE(enc, ptr)) {
+      case BT_DIGIT:
+      case BT_HEX:
+        break;
+      case BT_SEMI:
+        *nextTokPtr = ptr + MINBPC(enc);
+        return XML_TOK_CHAR_REF;
+      default:
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+/* ptr points to character following "&#" */
+
+static int PTRCALL
+PREFIX(scanCharRef)(const ENCODING *enc, const char *ptr,
+                    const char *end, const char **nextTokPtr)
+{
+  if (ptr != end) {
+    if (CHAR_MATCHES(enc, ptr, ASCII_x))
+      return PREFIX(scanHexCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+    switch (BYTE_TYPE(enc, ptr)) {
+    case BT_DIGIT:
+      break;
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+    for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
+      switch (BYTE_TYPE(enc, ptr)) {
+      case BT_DIGIT:
+        break;
+      case BT_SEMI:
+        *nextTokPtr = ptr + MINBPC(enc);
+        return XML_TOK_CHAR_REF;
+      default:
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+/* ptr points to character following "&" */
+
+static int PTRCALL
+PREFIX(scanRef)(const ENCODING *enc, const char *ptr, const char *end,
+                const char **nextTokPtr)
+{
+  if (ptr == end)
+    return XML_TOK_PARTIAL;
+  switch (BYTE_TYPE(enc, ptr)) {
+  CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
+  case BT_NUM:
+    return PREFIX(scanCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+  default:
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  }
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
+    case BT_SEMI:
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_ENTITY_REF;
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+/* ptr points to character following first character of attribute name */
+
+static int PTRCALL
+PREFIX(scanAtts)(const ENCODING *enc, const char *ptr, const char *end,
+                 const char **nextTokPtr)
+{
+#ifdef XML_NS
+  int hadColon = 0;
+#endif
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
+#ifdef XML_NS
+    case BT_COLON:
+      if (hadColon) {
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      hadColon = 1;
+      ptr += MINBPC(enc);
+      if (ptr == end)
+        return XML_TOK_PARTIAL;
+      switch (BYTE_TYPE(enc, ptr)) {
+      CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
+      default:
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      break;
+#endif
+    case BT_S: case BT_CR: case BT_LF:
+      for (;;) {
+        int t;
+
+        ptr += MINBPC(enc);
+        if (ptr == end)
+          return XML_TOK_PARTIAL;
+        t = BYTE_TYPE(enc, ptr);
+        if (t == BT_EQUALS)
+          break;
+        switch (t) {
+        case BT_S:
+        case BT_LF:
+        case BT_CR:
+          break;
+        default:
+          *nextTokPtr = ptr;
+          return XML_TOK_INVALID;
+        }
+      }
+    /* fall through */
+    case BT_EQUALS:
+      {
+        int open;
+#ifdef XML_NS
+        hadColon = 0;
+#endif
+        for (;;) {
+          ptr += MINBPC(enc);
+          if (ptr == end)
+            return XML_TOK_PARTIAL;
+          open = BYTE_TYPE(enc, ptr);
+          if (open == BT_QUOT || open == BT_APOS)
+            break;
+          switch (open) {
+          case BT_S:
+          case BT_LF:
+          case BT_CR:
+            break;
+          default:
+            *nextTokPtr = ptr;
+            return XML_TOK_INVALID;
+          }
+        }
+        ptr += MINBPC(enc);
+        /* in attribute value */
+        for (;;) {
+          int t;
+          if (ptr == end)
+            return XML_TOK_PARTIAL;
+          t = BYTE_TYPE(enc, ptr);
+          if (t == open)
+            break;
+          switch (t) {
+          INVALID_CASES(ptr, nextTokPtr)
+          case BT_AMP:
+            {
+              int tok = PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, &ptr);
+              if (tok <= 0) {
+                if (tok == XML_TOK_INVALID)
+                  *nextTokPtr = ptr;
+                return tok;
+              }
+              break;
+            }
+          case BT_LT:
+            *nextTokPtr = ptr;
+            return XML_TOK_INVALID;
+          default:
+            ptr += MINBPC(enc);
+            break;
+          }
+        }
+        ptr += MINBPC(enc);
+        if (ptr == end)
+          return XML_TOK_PARTIAL;
+        switch (BYTE_TYPE(enc, ptr)) {
+        case BT_S:
+        case BT_CR:
+        case BT_LF:
+          break;
+        case BT_SOL:
+          goto sol;
+        case BT_GT:
+          goto gt;
+        default:
+          *nextTokPtr = ptr;
+          return XML_TOK_INVALID;
+        }
+        /* ptr points to closing quote */
+        for (;;) {
+          ptr += MINBPC(enc);
+          if (ptr == end)
+            return XML_TOK_PARTIAL;
+          switch (BYTE_TYPE(enc, ptr)) {
+          CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
+          case BT_S: case BT_CR: case BT_LF:
+            continue;
+          case BT_GT:
+          gt:
+            *nextTokPtr = ptr + MINBPC(enc);
+            return XML_TOK_START_TAG_WITH_ATTS;
+          case BT_SOL:
+          sol:
+            ptr += MINBPC(enc);
+            if (ptr == end)
+              return XML_TOK_PARTIAL;
+            if (!CHAR_MATCHES(enc, ptr, ASCII_GT)) {
+              *nextTokPtr = ptr;
+              return XML_TOK_INVALID;
+            }
+            *nextTokPtr = ptr + MINBPC(enc);
+            return XML_TOK_EMPTY_ELEMENT_WITH_ATTS;
+          default:
+            *nextTokPtr = ptr;
+            return XML_TOK_INVALID;
+          }
+          break;
+        }
+        break;
+      }
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+/* ptr points to character following "<" */
+
+static int PTRCALL
+PREFIX(scanLt)(const ENCODING *enc, const char *ptr, const char *end,
+               const char **nextTokPtr)
+{
+#ifdef XML_NS
+  int hadColon;
+#endif
+  if (ptr == end)
+    return XML_TOK_PARTIAL;
+  switch (BYTE_TYPE(enc, ptr)) {
+  CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
+  case BT_EXCL:
+    if ((ptr += MINBPC(enc)) == end)
+      return XML_TOK_PARTIAL;
+    switch (BYTE_TYPE(enc, ptr)) {
+    case BT_MINUS:
+      return PREFIX(scanComment)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+    case BT_LSQB:
+      return PREFIX(scanCdataSection)(enc, ptr + MINBPC(enc),
+                                      end, nextTokPtr);
+    }
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  case BT_QUEST:
+    return PREFIX(scanPi)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+  case BT_SOL:
+    return PREFIX(scanEndTag)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+  default:
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  }
+#ifdef XML_NS
+  hadColon = 0;
+#endif
+  /* we have a start-tag */
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
+#ifdef XML_NS
+    case BT_COLON:
+      if (hadColon) {
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      hadColon = 1;
+      ptr += MINBPC(enc);
+      if (ptr == end)
+        return XML_TOK_PARTIAL;
+      switch (BYTE_TYPE(enc, ptr)) {
+      CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
+      default:
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      break;
+#endif
+    case BT_S: case BT_CR: case BT_LF:
+      {
+        ptr += MINBPC(enc);
+        while (ptr != end) {
+          switch (BYTE_TYPE(enc, ptr)) {
+          CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
+          case BT_GT:
+            goto gt;
+          case BT_SOL:
+            goto sol;
+          case BT_S: case BT_CR: case BT_LF:
+            ptr += MINBPC(enc);
+            continue;
+          default:
+            *nextTokPtr = ptr;
+            return XML_TOK_INVALID;
+          }
+          return PREFIX(scanAtts)(enc, ptr, end, nextTokPtr);
+        }
+        return XML_TOK_PARTIAL;
+      }
+    case BT_GT:
+    gt:
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_START_TAG_NO_ATTS;
+    case BT_SOL:
+    sol:
+      ptr += MINBPC(enc);
+      if (ptr == end)
+        return XML_TOK_PARTIAL;
+      if (!CHAR_MATCHES(enc, ptr, ASCII_GT)) {
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_EMPTY_ELEMENT_NO_ATTS;
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+static int PTRCALL
+PREFIX(contentTok)(const ENCODING *enc, const char *ptr, const char *end,
+                   const char **nextTokPtr)
+{
+  if (ptr == end)
+    return XML_TOK_NONE;
+  if (MINBPC(enc) > 1) {
+    size_t n = end - ptr;
+    if (n & (MINBPC(enc) - 1)) {
+      n &= ~(MINBPC(enc) - 1);
+      if (n == 0)
+        return XML_TOK_PARTIAL;
+      end = ptr + n;
+    }
+  }
+  switch (BYTE_TYPE(enc, ptr)) {
+  case BT_LT:
+    return PREFIX(scanLt)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+  case BT_AMP:
+    return PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+  case BT_CR:
+    ptr += MINBPC(enc);
+    if (ptr == end)
+      return XML_TOK_TRAILING_CR;
+    if (BYTE_TYPE(enc, ptr) == BT_LF)
+      ptr += MINBPC(enc);
+    *nextTokPtr = ptr;
+    return XML_TOK_DATA_NEWLINE;
+  case BT_LF:
+    *nextTokPtr = ptr + MINBPC(enc);
+    return XML_TOK_DATA_NEWLINE;
+  case BT_RSQB:
+    ptr += MINBPC(enc);
+    if (ptr == end)
+      return XML_TOK_TRAILING_RSQB;
+    if (!CHAR_MATCHES(enc, ptr, ASCII_RSQB))
+      break;
+    ptr += MINBPC(enc);
+    if (ptr == end)
+      return XML_TOK_TRAILING_RSQB;
+    if (!CHAR_MATCHES(enc, ptr, ASCII_GT)) {
+      ptr -= MINBPC(enc);
+      break;
+    }
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  INVALID_CASES(ptr, nextTokPtr)
+  default:
+    ptr += MINBPC(enc);
+    break;
+  }
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+#define LEAD_CASE(n) \
+    case BT_LEAD ## n: \
+      if (end - ptr < n || IS_INVALID_CHAR(enc, ptr, n)) { \
+        *nextTokPtr = ptr; \
+        return XML_TOK_DATA_CHARS; \
+      } \
+      ptr += n; \
+      break;
+    LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
+#undef LEAD_CASE
+    case BT_RSQB:
+      if (ptr + MINBPC(enc) != end) {
+         if (!CHAR_MATCHES(enc, ptr + MINBPC(enc), ASCII_RSQB)) {
+           ptr += MINBPC(enc);
+           break;
+         }
+         if (ptr + 2*MINBPC(enc) != end) {
+           if (!CHAR_MATCHES(enc, ptr + 2*MINBPC(enc), ASCII_GT)) {
+             ptr += MINBPC(enc);
+             break;
+           }
+           *nextTokPtr = ptr + 2*MINBPC(enc);
+           return XML_TOK_INVALID;
+         }
+      }
+      /* fall through */
+    case BT_AMP:
+    case BT_LT:
+    case BT_NONXML:
+    case BT_MALFORM:
+    case BT_TRAIL:
+    case BT_CR:
+    case BT_LF:
+      *nextTokPtr = ptr;
+      return XML_TOK_DATA_CHARS;
+    default:
+      ptr += MINBPC(enc);
+      break;
+    }
+  }
+  *nextTokPtr = ptr;
+  return XML_TOK_DATA_CHARS;
+}
+
+/* ptr points to character following "%" */
+
+static int PTRCALL
+PREFIX(scanPercent)(const ENCODING *enc, const char *ptr, const char *end,
+                    const char **nextTokPtr)
+{
+  if (ptr == end)
+    return XML_TOK_PARTIAL;
+  switch (BYTE_TYPE(enc, ptr)) {
+  CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
+  case BT_S: case BT_LF: case BT_CR: case BT_PERCNT:
+    *nextTokPtr = ptr;
+    return XML_TOK_PERCENT;
+  default:
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  }
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
+    case BT_SEMI:
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_PARAM_ENTITY_REF;
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+static int PTRCALL
+PREFIX(scanPoundName)(const ENCODING *enc, const char *ptr, const char *end,
+                      const char **nextTokPtr)
+{
+  if (ptr == end)
+    return XML_TOK_PARTIAL;
+  switch (BYTE_TYPE(enc, ptr)) {
+  CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
+  default:
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  }
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
+    case BT_CR: case BT_LF: case BT_S:
+    case BT_RPAR: case BT_GT: case BT_PERCNT: case BT_VERBAR:
+      *nextTokPtr = ptr;
+      return XML_TOK_POUND_NAME;
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  }
+  return -XML_TOK_POUND_NAME;
+}
+
+static int PTRCALL
+PREFIX(scanLit)(int open, const ENCODING *enc,
+                const char *ptr, const char *end,
+                const char **nextTokPtr)
+{
+  while (ptr != end) {
+    int t = BYTE_TYPE(enc, ptr);
+    switch (t) {
+    INVALID_CASES(ptr, nextTokPtr)
+    case BT_QUOT:
+    case BT_APOS:
+      ptr += MINBPC(enc);
+      if (t != open)
+        break;
+      if (ptr == end)
+        return -XML_TOK_LITERAL;
+      *nextTokPtr = ptr;
+      switch (BYTE_TYPE(enc, ptr)) {
+      case BT_S: case BT_CR: case BT_LF:
+      case BT_GT: case BT_PERCNT: case BT_LSQB:
+        return XML_TOK_LITERAL;
+      default:
+        return XML_TOK_INVALID;
+      }
+    default:
+      ptr += MINBPC(enc);
+      break;
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+static int PTRCALL
+PREFIX(prologTok)(const ENCODING *enc, const char *ptr, const char *end,
+                  const char **nextTokPtr)
+{
+  int tok;
+  if (ptr == end)
+    return XML_TOK_NONE;
+  if (MINBPC(enc) > 1) {
+    size_t n = end - ptr;
+    if (n & (MINBPC(enc) - 1)) {
+      n &= ~(MINBPC(enc) - 1);
+      if (n == 0)
+        return XML_TOK_PARTIAL;
+      end = ptr + n;
+    }
+  }
+  switch (BYTE_TYPE(enc, ptr)) {
+  case BT_QUOT:
+    return PREFIX(scanLit)(BT_QUOT, enc, ptr + MINBPC(enc), end, nextTokPtr);
+  case BT_APOS:
+    return PREFIX(scanLit)(BT_APOS, enc, ptr + MINBPC(enc), end, nextTokPtr);
+  case BT_LT:
+    {
+      ptr += MINBPC(enc);
+      if (ptr == end)
+        return XML_TOK_PARTIAL;
+      switch (BYTE_TYPE(enc, ptr)) {
+      case BT_EXCL:
+        return PREFIX(scanDecl)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+      case BT_QUEST:
+        return PREFIX(scanPi)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+      case BT_NMSTRT:
+      case BT_HEX:
+      case BT_NONASCII:
+      case BT_LEAD2:
+      case BT_LEAD3:
+      case BT_LEAD4:
+        *nextTokPtr = ptr - MINBPC(enc);
+        return XML_TOK_INSTANCE_START;
+      }
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  case BT_CR:
+    if (ptr + MINBPC(enc) == end) {
+      *nextTokPtr = end;
+      /* indicate that this might be part of a CR/LF pair */
+      return -XML_TOK_PROLOG_S;
+    }
+    /* fall through */
+  case BT_S: case BT_LF:
+    for (;;) {
+      ptr += MINBPC(enc);
+      if (ptr == end)
+        break;
+      switch (BYTE_TYPE(enc, ptr)) {
+      case BT_S: case BT_LF:
+        break;
+      case BT_CR:
+        /* don't split CR/LF pair */
+        if (ptr + MINBPC(enc) != end)
+          break;
+        /* fall through */
+      default:
+        *nextTokPtr = ptr;
+        return XML_TOK_PROLOG_S;
+      }
+    }
+    *nextTokPtr = ptr;
+    return XML_TOK_PROLOG_S;
+  case BT_PERCNT:
+    return PREFIX(scanPercent)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+  case BT_COMMA:
+    *nextTokPtr = ptr + MINBPC(enc);
+    return XML_TOK_COMMA;
+  case BT_LSQB:
+    *nextTokPtr = ptr + MINBPC(enc);
+    return XML_TOK_OPEN_BRACKET;
+  case BT_RSQB:
+    ptr += MINBPC(enc);
+    if (ptr == end)
+      return -XML_TOK_CLOSE_BRACKET;
+    if (CHAR_MATCHES(enc, ptr, ASCII_RSQB)) {
+      if (ptr + MINBPC(enc) == end)
+        return XML_TOK_PARTIAL;
+      if (CHAR_MATCHES(enc, ptr + MINBPC(enc), ASCII_GT)) {
+        *nextTokPtr = ptr + 2*MINBPC(enc);
+        return XML_TOK_COND_SECT_CLOSE;
+      }
+    }
+    *nextTokPtr = ptr;
+    return XML_TOK_CLOSE_BRACKET;
+  case BT_LPAR:
+    *nextTokPtr = ptr + MINBPC(enc);
+    return XML_TOK_OPEN_PAREN;
+  case BT_RPAR:
+    ptr += MINBPC(enc);
+    if (ptr == end)
+      return -XML_TOK_CLOSE_PAREN;
+    switch (BYTE_TYPE(enc, ptr)) {
+    case BT_AST:
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_CLOSE_PAREN_ASTERISK;
+    case BT_QUEST:
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_CLOSE_PAREN_QUESTION;
+    case BT_PLUS:
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_CLOSE_PAREN_PLUS;
+    case BT_CR: case BT_LF: case BT_S:
+    case BT_GT: case BT_COMMA: case BT_VERBAR:
+    case BT_RPAR:
+      *nextTokPtr = ptr;
+      return XML_TOK_CLOSE_PAREN;
+    }
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  case BT_VERBAR:
+    *nextTokPtr = ptr + MINBPC(enc);
+    return XML_TOK_OR;
+  case BT_GT:
+    *nextTokPtr = ptr + MINBPC(enc);
+    return XML_TOK_DECL_CLOSE;
+  case BT_NUM:
+    return PREFIX(scanPoundName)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+#define LEAD_CASE(n) \
+  case BT_LEAD ## n: \
+    if (end - ptr < n) \
+      return XML_TOK_PARTIAL_CHAR; \
+    if (IS_NMSTRT_CHAR(enc, ptr, n)) { \
+      ptr += n; \
+      tok = XML_TOK_NAME; \
+      break; \
+    } \
+    if (IS_NAME_CHAR(enc, ptr, n)) { \
+      ptr += n; \
+      tok = XML_TOK_NMTOKEN; \
+      break; \
+    } \
+    *nextTokPtr = ptr; \
+    return XML_TOK_INVALID;
+    LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
+#undef LEAD_CASE
+  case BT_NMSTRT:
+  case BT_HEX:
+    tok = XML_TOK_NAME;
+    ptr += MINBPC(enc);
+    break;
+  case BT_DIGIT:
+  case BT_NAME:
+  case BT_MINUS:
+#ifdef XML_NS
+  case BT_COLON:
+#endif
+    tok = XML_TOK_NMTOKEN;
+    ptr += MINBPC(enc);
+    break;
+  case BT_NONASCII:
+    if (IS_NMSTRT_CHAR_MINBPC(enc, ptr)) {
+      ptr += MINBPC(enc);
+      tok = XML_TOK_NAME;
+      break;
+    }
+    if (IS_NAME_CHAR_MINBPC(enc, ptr)) {
+      ptr += MINBPC(enc);
+      tok = XML_TOK_NMTOKEN;
+      break;
+    }
+    /* fall through */
+  default:
+    *nextTokPtr = ptr;
+    return XML_TOK_INVALID;
+  }
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
+    case BT_GT: case BT_RPAR: case BT_COMMA:
+    case BT_VERBAR: case BT_LSQB: case BT_PERCNT:
+    case BT_S: case BT_CR: case BT_LF:
+      *nextTokPtr = ptr;
+      return tok;
+#ifdef XML_NS
+    case BT_COLON:
+      ptr += MINBPC(enc);
+      switch (tok) {
+      case XML_TOK_NAME:
+        if (ptr == end)
+          return XML_TOK_PARTIAL;
+        tok = XML_TOK_PREFIXED_NAME;
+        switch (BYTE_TYPE(enc, ptr)) {
+        CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
+        default:
+          tok = XML_TOK_NMTOKEN;
+          break;
+        }
+        break;
+      case XML_TOK_PREFIXED_NAME:
+        tok = XML_TOK_NMTOKEN;
+        break;
+      }
+      break;
+#endif
+    case BT_PLUS:
+      if (tok == XML_TOK_NMTOKEN)  {
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_NAME_PLUS;
+    case BT_AST:
+      if (tok == XML_TOK_NMTOKEN)  {
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_NAME_ASTERISK;
+    case BT_QUEST:
+      if (tok == XML_TOK_NMTOKEN)  {
+        *nextTokPtr = ptr;
+        return XML_TOK_INVALID;
+      }
+      *nextTokPtr = ptr + MINBPC(enc);
+      return XML_TOK_NAME_QUESTION;
+    default:
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    }
+  }
+  return -tok;
+}
+
+static int PTRCALL
+PREFIX(attributeValueTok)(const ENCODING *enc, const char *ptr,
+                          const char *end, const char **nextTokPtr)
+{
+  const char *start;
+  if (ptr == end)
+    return XML_TOK_NONE;
+  start = ptr;
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+#define LEAD_CASE(n) \
+    case BT_LEAD ## n: ptr += n; break;
+    LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
+#undef LEAD_CASE
+    case BT_AMP:
+      if (ptr == start)
+        return PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+      *nextTokPtr = ptr;
+      return XML_TOK_DATA_CHARS;
+    case BT_LT:
+      /* this is for inside entity references */
+      *nextTokPtr = ptr;
+      return XML_TOK_INVALID;
+    case BT_LF:
+      if (ptr == start) {
+        *nextTokPtr = ptr + MINBPC(enc);
+        return XML_TOK_DATA_NEWLINE;
+      }
+      *nextTokPtr = ptr;
+      return XML_TOK_DATA_CHARS;
+    case BT_CR:
+      if (ptr == start) {
+        ptr += MINBPC(enc);
+        if (ptr == end)
+          return XML_TOK_TRAILING_CR;
+        if (BYTE_TYPE(enc, ptr) == BT_LF)
+          ptr += MINBPC(enc);
+        *nextTokPtr = ptr;
+        return XML_TOK_DATA_NEWLINE;
+      }
+      *nextTokPtr = ptr;
+      return XML_TOK_DATA_CHARS;
+    case BT_S:
+      if (ptr == start) {
+        *nextTokPtr = ptr + MINBPC(enc);
+        return XML_TOK_ATTRIBUTE_VALUE_S;
+      }
+      *nextTokPtr = ptr;
+      return XML_TOK_DATA_CHARS;
+    default:
+      ptr += MINBPC(enc);
+      break;
+    }
+  }
+  *nextTokPtr = ptr;
+  return XML_TOK_DATA_CHARS;
+}
+
+static int PTRCALL
+PREFIX(entityValueTok)(const ENCODING *enc, const char *ptr,
+                       const char *end, const char **nextTokPtr)
+{
+  const char *start;
+  if (ptr == end)
+    return XML_TOK_NONE;
+  start = ptr;
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+#define LEAD_CASE(n) \
+    case BT_LEAD ## n: ptr += n; break;
+    LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
+#undef LEAD_CASE
+    case BT_AMP:
+      if (ptr == start)
+        return PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
+      *nextTokPtr = ptr;
+      return XML_TOK_DATA_CHARS;
+    case BT_PERCNT:
+      if (ptr == start) {
+        int tok =  PREFIX(scanPercent)(enc, ptr + MINBPC(enc),
+                                       end, nextTokPtr);
+        return (tok == XML_TOK_PERCENT) ? XML_TOK_INVALID : tok;
+      }
+      *nextTokPtr = ptr;
+      return XML_TOK_DATA_CHARS;
+    case BT_LF:
+      if (ptr == start) {
+        *nextTokPtr = ptr + MINBPC(enc);
+        return XML_TOK_DATA_NEWLINE;
+      }
+      *nextTokPtr = ptr;
+      return XML_TOK_DATA_CHARS;
+    case BT_CR:
+      if (ptr == start) {
+        ptr += MINBPC(enc);
+        if (ptr == end)
+          return XML_TOK_TRAILING_CR;
+        if (BYTE_TYPE(enc, ptr) == BT_LF)
+          ptr += MINBPC(enc);
+        *nextTokPtr = ptr;
+        return XML_TOK_DATA_NEWLINE;
+      }
+      *nextTokPtr = ptr;
+      return XML_TOK_DATA_CHARS;
+    default:
+      ptr += MINBPC(enc);
+      break;
+    }
+  }
+  *nextTokPtr = ptr;
+  return XML_TOK_DATA_CHARS;
+}
+
+#ifdef XML_DTD
+
+static int PTRCALL
+PREFIX(ignoreSectionTok)(const ENCODING *enc, const char *ptr,
+                         const char *end, const char **nextTokPtr)
+{
+  int level = 0;
+  if (MINBPC(enc) > 1) {
+    size_t n = end - ptr;
+    if (n & (MINBPC(enc) - 1)) {
+      n &= ~(MINBPC(enc) - 1);
+      end = ptr + n;
+    }
+  }
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    INVALID_CASES(ptr, nextTokPtr)
+    case BT_LT:
+      if ((ptr += MINBPC(enc)) == end)
+        return XML_TOK_PARTIAL;
+      if (CHAR_MATCHES(enc, ptr, ASCII_EXCL)) {
+        if ((ptr += MINBPC(enc)) == end)
+          return XML_TOK_PARTIAL;
+        if (CHAR_MATCHES(enc, ptr, ASCII_LSQB)) {
+          ++level;
+          ptr += MINBPC(enc);
+        }
+      }
+      break;
+    case BT_RSQB:
+      if ((ptr += MINBPC(enc)) == end)
+        return XML_TOK_PARTIAL;
+      if (CHAR_MATCHES(enc, ptr, ASCII_RSQB)) {
+        if ((ptr += MINBPC(enc)) == end)
+          return XML_TOK_PARTIAL;
+        if (CHAR_MATCHES(enc, ptr, ASCII_GT)) {
+          ptr += MINBPC(enc);
+          if (level == 0) {
+            *nextTokPtr = ptr;
+            return XML_TOK_IGNORE_SECT;
+          }
+          --level;
+        }
+      }
+      break;
+    default:
+      ptr += MINBPC(enc);
+      break;
+    }
+  }
+  return XML_TOK_PARTIAL;
+}
+
+#endif /* XML_DTD */
+
+static int PTRCALL
+PREFIX(isPublicId)(const ENCODING *enc, const char *ptr, const char *end,
+                   const char **badPtr)
+{
+  ptr += MINBPC(enc);
+  end -= MINBPC(enc);
+  for (; ptr != end; ptr += MINBPC(enc)) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    case BT_DIGIT:
+    case BT_HEX:
+    case BT_MINUS:
+    case BT_APOS:
+    case BT_LPAR:
+    case BT_RPAR:
+    case BT_PLUS:
+    case BT_COMMA:
+    case BT_SOL:
+    case BT_EQUALS:
+    case BT_QUEST:
+    case BT_CR:
+    case BT_LF:
+    case BT_SEMI:
+    case BT_EXCL:
+    case BT_AST:
+    case BT_PERCNT:
+    case BT_NUM:
+#ifdef XML_NS
+    case BT_COLON:
+#endif
+      break;
+    case BT_S:
+      if (CHAR_MATCHES(enc, ptr, ASCII_TAB)) {
+        *badPtr = ptr;
+        return 0;
+      }
+      break;
+    case BT_NAME:
+    case BT_NMSTRT:
+      if (!(BYTE_TO_ASCII(enc, ptr) & ~0x7f))
+        break;
+    default:
+      switch (BYTE_TO_ASCII(enc, ptr)) {
+      case 0x24: /* $ */
+      case 0x40: /* @ */
+        break;
+      default:
+        *badPtr = ptr;
+        return 0;
+      }
+      break;
+    }
+  }
+  return 1;
+}
+
+/* This must only be called for a well-formed start-tag or empty
+   element tag.  Returns the number of attributes.  Pointers to the
+   first attsMax attributes are stored in atts.
+*/
+
+static int PTRCALL
+PREFIX(getAtts)(const ENCODING *enc, const char *ptr,
+                int attsMax, ATTRIBUTE *atts)
+{
+  enum { other, inName, inValue } state = inName;
+  int nAtts = 0;
+  int open = 0; /* defined when state == inValue;
+                   initialization just to shut up compilers */
+
+  for (ptr += MINBPC(enc);; ptr += MINBPC(enc)) {
+    switch (BYTE_TYPE(enc, ptr)) {
+#define START_NAME \
+      if (state == other) { \
+        if (nAtts < attsMax) { \
+          atts[nAtts].name = ptr; \
+          atts[nAtts].normalized = 1; \
+        } \
+        state = inName; \
+      }
+#define LEAD_CASE(n) \
+    case BT_LEAD ## n: START_NAME ptr += (n - MINBPC(enc)); break;
+    LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
+#undef LEAD_CASE
+    case BT_NONASCII:
+    case BT_NMSTRT:
+    case BT_HEX:
+      START_NAME
+      break;
+#undef START_NAME
+    case BT_QUOT:
+      if (state != inValue) {
+        if (nAtts < attsMax)
+          atts[nAtts].valuePtr = ptr + MINBPC(enc);
+        state = inValue;
+        open = BT_QUOT;
+      }
+      else if (open == BT_QUOT) {
+        state = other;
+        if (nAtts < attsMax)
+          atts[nAtts].valueEnd = ptr;
+        nAtts++;
+      }
+      break;
+    case BT_APOS:
+      if (state != inValue) {
+        if (nAtts < attsMax)
+          atts[nAtts].valuePtr = ptr + MINBPC(enc);
+        state = inValue;
+        open = BT_APOS;
+      }
+      else if (open == BT_APOS) {
+        state = other;
+        if (nAtts < attsMax)
+          atts[nAtts].valueEnd = ptr;
+        nAtts++;
+      }
+      break;
+    case BT_AMP:
+      if (nAtts < attsMax)
+        atts[nAtts].normalized = 0;
+      break;
+    case BT_S:
+      if (state == inName)
+        state = other;
+      else if (state == inValue
+               && nAtts < attsMax
+               && atts[nAtts].normalized
+               && (ptr == atts[nAtts].valuePtr
+                   || BYTE_TO_ASCII(enc, ptr) != ASCII_SPACE
+                   || BYTE_TO_ASCII(enc, ptr + MINBPC(enc)) == ASCII_SPACE
+                   || BYTE_TYPE(enc, ptr + MINBPC(enc)) == open))
+        atts[nAtts].normalized = 0;
+      break;
+    case BT_CR: case BT_LF:
+      /* This case ensures that the first attribute name is counted
+         Apart from that we could just change state on the quote. */
+      if (state == inName)
+        state = other;
+      else if (state == inValue && nAtts < attsMax)
+        atts[nAtts].normalized = 0;
+      break;
+    case BT_GT:
+    case BT_SOL:
+      if (state != inValue)
+        return nAtts;
+      break;
+    default:
+      break;
+    }
+  }
+  /* not reached */
+}
+
+static int PTRFASTCALL
+PREFIX(charRefNumber)(const ENCODING *enc, const char *ptr)
+{
+  int result = 0;
+  /* skip &# */
+  ptr += 2*MINBPC(enc);
+  if (CHAR_MATCHES(enc, ptr, ASCII_x)) {
+    for (ptr += MINBPC(enc);
+         !CHAR_MATCHES(enc, ptr, ASCII_SEMI);
+         ptr += MINBPC(enc)) {
+      int c = BYTE_TO_ASCII(enc, ptr);
+      switch (c) {
+      case ASCII_0: case ASCII_1: case ASCII_2: case ASCII_3: case ASCII_4:
+      case ASCII_5: case ASCII_6: case ASCII_7: case ASCII_8: case ASCII_9:
+        result <<= 4;
+        result |= (c - ASCII_0);
+        break;
+      case ASCII_A: case ASCII_B: case ASCII_C:
+      case ASCII_D: case ASCII_E: case ASCII_F:
+        result <<= 4;
+        result += 10 + (c - ASCII_A);
+        break;
+      case ASCII_a: case ASCII_b: case ASCII_c:
+      case ASCII_d: case ASCII_e: case ASCII_f:
+        result <<= 4;
+        result += 10 + (c - ASCII_a);
+        break;
+      }
+      if (result >= 0x110000)
+        return -1;
+    }
+  }
+  else {
+    for (; !CHAR_MATCHES(enc, ptr, ASCII_SEMI); ptr += MINBPC(enc)) {
+      int c = BYTE_TO_ASCII(enc, ptr);
+      result *= 10;
+      result += (c - ASCII_0);
+      if (result >= 0x110000)
+        return -1;
+    }
+  }
+  return checkCharRefNumber(result);
+}
+
+static int PTRCALL
+PREFIX(predefinedEntityName)(const ENCODING *enc, const char *ptr,
+                             const char *end)
+{
+  switch ((end - ptr)/MINBPC(enc)) {
+  case 2:
+    if (CHAR_MATCHES(enc, ptr + MINBPC(enc), ASCII_t)) {
+      switch (BYTE_TO_ASCII(enc, ptr)) {
+      case ASCII_l:
+        return ASCII_LT;
+      case ASCII_g:
+        return ASCII_GT;
+      }
+    }
+    break;
+  case 3:
+    if (CHAR_MATCHES(enc, ptr, ASCII_a)) {
+      ptr += MINBPC(enc);
+      if (CHAR_MATCHES(enc, ptr, ASCII_m)) {
+        ptr += MINBPC(enc);
+        if (CHAR_MATCHES(enc, ptr, ASCII_p))
+          return ASCII_AMP;
+      }
+    }
+    break;
+  case 4:
+    switch (BYTE_TO_ASCII(enc, ptr)) {
+    case ASCII_q:
+      ptr += MINBPC(enc);
+      if (CHAR_MATCHES(enc, ptr, ASCII_u)) {
+        ptr += MINBPC(enc);
+        if (CHAR_MATCHES(enc, ptr, ASCII_o)) {
+          ptr += MINBPC(enc);
+          if (CHAR_MATCHES(enc, ptr, ASCII_t))
+            return ASCII_QUOT;
+        }
+      }
+      break;
+    case ASCII_a:
+      ptr += MINBPC(enc);
+      if (CHAR_MATCHES(enc, ptr, ASCII_p)) {
+        ptr += MINBPC(enc);
+        if (CHAR_MATCHES(enc, ptr, ASCII_o)) {
+          ptr += MINBPC(enc);
+          if (CHAR_MATCHES(enc, ptr, ASCII_s))
+            return ASCII_APOS;
+        }
+      }
+      break;
+    }
+  }
+  return 0;
+}
+
+static int PTRCALL
+PREFIX(sameName)(const ENCODING *enc, const char *ptr1, const char *ptr2)
+{
+  for (;;) {
+    switch (BYTE_TYPE(enc, ptr1)) {
+#define LEAD_CASE(n) \
+    case BT_LEAD ## n: \
+      if (*ptr1++ != *ptr2++) \
+        return 0;
+    LEAD_CASE(4) LEAD_CASE(3) LEAD_CASE(2)
+#undef LEAD_CASE
+      /* fall through */
+      if (*ptr1++ != *ptr2++)
+        return 0;
+      break;
+    case BT_NONASCII:
+    case BT_NMSTRT:
+#ifdef XML_NS
+    case BT_COLON:
+#endif
+    case BT_HEX:
+    case BT_DIGIT:
+    case BT_NAME:
+    case BT_MINUS:
+      if (*ptr2++ != *ptr1++)
+        return 0;
+      if (MINBPC(enc) > 1) {
+        if (*ptr2++ != *ptr1++)
+          return 0;
+        if (MINBPC(enc) > 2) {
+          if (*ptr2++ != *ptr1++)
+            return 0;
+          if (MINBPC(enc) > 3) {
+            if (*ptr2++ != *ptr1++)
+              return 0;
+          }
+        }
+      }
+      break;
+    default:
+      if (MINBPC(enc) == 1 && *ptr1 == *ptr2)
+        return 1;
+      switch (BYTE_TYPE(enc, ptr2)) {
+      case BT_LEAD2:
+      case BT_LEAD3:
+      case BT_LEAD4:
+      case BT_NONASCII:
+      case BT_NMSTRT:
+#ifdef XML_NS
+      case BT_COLON:
+#endif
+      case BT_HEX:
+      case BT_DIGIT:
+      case BT_NAME:
+      case BT_MINUS:
+        return 0;
+      default:
+        return 1;
+      }
+    }
+  }
+  /* not reached */
+}
+
+static int PTRCALL
+PREFIX(nameMatchesAscii)(const ENCODING *enc, const char *ptr1,
+                         const char *end1, const char *ptr2)
+{
+  for (; *ptr2; ptr1 += MINBPC(enc), ptr2++) {
+    if (ptr1 == end1)
+      return 0;
+    if (!CHAR_MATCHES(enc, ptr1, *ptr2))
+      return 0;
+  }
+  return ptr1 == end1;
+}
+
+static int PTRFASTCALL
+PREFIX(nameLength)(const ENCODING *enc, const char *ptr)
+{
+  const char *start = ptr;
+  for (;;) {
+    switch (BYTE_TYPE(enc, ptr)) {
+#define LEAD_CASE(n) \
+    case BT_LEAD ## n: ptr += n; break;
+    LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
+#undef LEAD_CASE
+    case BT_NONASCII:
+    case BT_NMSTRT:
+#ifdef XML_NS
+    case BT_COLON:
+#endif
+    case BT_HEX:
+    case BT_DIGIT:
+    case BT_NAME:
+    case BT_MINUS:
+      ptr += MINBPC(enc);
+      break;
+    default:
+      return ptr - start;
+    }
+  }
+}
+
+static const char * PTRFASTCALL
+PREFIX(skipS)(const ENCODING *enc, const char *ptr)
+{
+  for (;;) {
+    switch (BYTE_TYPE(enc, ptr)) {
+    case BT_LF:
+    case BT_CR:
+    case BT_S:
+      ptr += MINBPC(enc);
+      break;
+    default:
+      return ptr;
+    }
+  }
+}
+
+static void PTRCALL
+PREFIX(updatePosition)(const ENCODING *enc,
+                       const char *ptr,
+                       const char *end,
+                       POSITION *pos)
+{
+  while (ptr != end) {
+    switch (BYTE_TYPE(enc, ptr)) {
+#define LEAD_CASE(n) \
+    case BT_LEAD ## n: \
+      ptr += n; \
+      break;
+    LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
+#undef LEAD_CASE
+    case BT_LF:
+      pos->columnNumber = (unsigned)-1;
+      pos->lineNumber++;
+      ptr += MINBPC(enc);
+      break;
+    case BT_CR:
+      pos->lineNumber++;
+      ptr += MINBPC(enc);
+      if (ptr != end && BYTE_TYPE(enc, ptr) == BT_LF)
+        ptr += MINBPC(enc);
+      pos->columnNumber = (unsigned)-1;
+      break;
+    default:
+      ptr += MINBPC(enc);
+      break;
+    }
+    pos->columnNumber++;
+  }
+}
+
+#undef DO_LEAD_CASE
+#undef MULTIBYTE_CASES
+#undef INVALID_CASES
+#undef CHECK_NAME_CASE
+#undef CHECK_NAME_CASES
+#undef CHECK_NMSTRT_CASE
+#undef CHECK_NMSTRT_CASES
+
diff --git a/lib/libexpat/lib/xmltok_impl.h b/lib/libexpat/lib/xmltok_impl.h
new file mode 100644
index 00000000000..da0ea60a657
--- /dev/null
+++ b/lib/libexpat/lib/xmltok_impl.h
@@ -0,0 +1,46 @@
+/*
+Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+See the file COPYING for copying permission.
+*/
+
+enum {
+  BT_NONXML,
+  BT_MALFORM,
+  BT_LT,
+  BT_AMP,
+  BT_RSQB,
+  BT_LEAD2,
+  BT_LEAD3,
+  BT_LEAD4,
+  BT_TRAIL,
+  BT_CR,
+  BT_LF,
+  BT_GT,
+  BT_QUOT,
+  BT_APOS,
+  BT_EQUALS,
+  BT_QUEST,
+  BT_EXCL,
+  BT_SOL,
+  BT_SEMI,
+  BT_NUM,
+  BT_LSQB,
+  BT_S,
+  BT_NMSTRT,
+  BT_COLON,
+  BT_HEX,
+  BT_DIGIT,
+  BT_NAME,
+  BT_MINUS,
+  BT_OTHER, /* known not to be a name or name start character */
+  BT_NONASCII, /* might be a name or name start character */
+  BT_PERCNT,
+  BT_LPAR,
+  BT_RPAR,
+  BT_AST,
+  BT_PLUS,
+  BT_COMMA,
+  BT_VERBAR
+};
+
+#include <stddef.h>
diff --git a/lib/libexpat/lib/xmltok_ns.c b/lib/libexpat/lib/xmltok_ns.c
new file mode 100644
index 00000000000..5610eb95ba7
--- /dev/null
+++ b/lib/libexpat/lib/xmltok_ns.c
@@ -0,0 +1,106 @@
+const ENCODING *
+NS(XmlGetUtf8InternalEncoding)(void)
+{
+  return &ns(internal_utf8_encoding).enc;
+}
+
+const ENCODING *
+NS(XmlGetUtf16InternalEncoding)(void)
+{
+#if BYTEORDER == 1234
+  return &ns(internal_little2_encoding).enc;
+#elif BYTEORDER == 4321
+  return &ns(internal_big2_encoding).enc;
+#else
+  const short n = 1;
+  return (*(const char *)&n
+          ? &ns(internal_little2_encoding).enc
+          : &ns(internal_big2_encoding).enc);
+#endif
+}
+
+static const ENCODING *NS(encodings)[] = {
+  &ns(latin1_encoding).enc,
+  &ns(ascii_encoding).enc,
+  &ns(utf8_encoding).enc,
+  &ns(big2_encoding).enc,
+  &ns(big2_encoding).enc,
+  &ns(little2_encoding).enc,
+  &ns(utf8_encoding).enc /* NO_ENC */
+};
+
+static int PTRCALL
+NS(initScanProlog)(const ENCODING *enc, const char *ptr, const char *end,
+                   const char **nextTokPtr)
+{
+  return initScan(NS(encodings), (const INIT_ENCODING *)enc,
+                  XML_PROLOG_STATE, ptr, end, nextTokPtr);
+}
+
+static int PTRCALL
+NS(initScanContent)(const ENCODING *enc, const char *ptr, const char *end,
+                    const char **nextTokPtr)
+{
+  return initScan(NS(encodings), (const INIT_ENCODING *)enc,
+                  XML_CONTENT_STATE, ptr, end, nextTokPtr);
+}
+
+int
+NS(XmlInitEncoding)(INIT_ENCODING *p, const ENCODING **encPtr,
+                    const char *name)
+{
+  int i = getEncodingIndex(name);
+  if (i == UNKNOWN_ENC)
+    return 0;
+  SET_INIT_ENC_INDEX(p, i);
+  p->initEnc.scanners[XML_PROLOG_STATE] = NS(initScanProlog);
+  p->initEnc.scanners[XML_CONTENT_STATE] = NS(initScanContent);
+  p->initEnc.updatePosition = initUpdatePosition;
+  p->encPtr = encPtr;
+  *encPtr = &(p->initEnc);
+  return 1;
+}
+
+static const ENCODING *
+NS(findEncoding)(const ENCODING *enc, const char *ptr, const char *end)
+{
+#define ENCODING_MAX 128
+  char buf[ENCODING_MAX];
+  char *p = buf;
+  int i;
+  XmlUtf8Convert(enc, &ptr, end, &p, p + ENCODING_MAX - 1);
+  if (ptr != end)
+    return 0;
+  *p = 0;
+  if (streqci(buf, KW_UTF_16) && enc->minBytesPerChar == 2)
+    return enc;
+  i = getEncodingIndex(buf);
+  if (i == UNKNOWN_ENC)
+    return 0;
+  return NS(encodings)[i];
+}
+
+int
+NS(XmlParseXmlDecl)(int isGeneralTextEntity,
+                    const ENCODING *enc,
+                    const char *ptr,
+                    const char *end,
+                    const char **badPtr,
+                    const char **versionPtr,
+                    const char **versionEndPtr,
+                    const char **encodingName,
+                    const ENCODING **encoding,
+                    int *standalone)
+{
+  return doParseXmlDecl(NS(findEncoding),
+                        isGeneralTextEntity,
+                        enc,
+                        ptr,
+                        end,
+                        badPtr,
+                        versionPtr,
+                        versionEndPtr,
+                        encodingName,
+                        encoding,
+                        standalone);
+}