/zeromq/foreign/xmlParser/xmlParser.cpp

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/**
 ****************************************************************************
 * <P> XML.c - implementation file for basic XML parser written in ANSI C++
 * for portability. It works by using recursion and a node tree for breaking
 * down the elements of an XML document.  </P>
 *
 * @version     V2.39
 * @author      Frank Vanden Berghen
 *
 * NOTE:
 *
 *   If you add "#define STRICT_PARSING", on the first line of this file
 *   the parser will see the following XML-stream:
 *      <a><b>some text</b><b>other text    </a>
 *   as an error. Otherwise, this tring will be equivalent to:
 *      <a><b>some text</b><b>other text</b></a>
 *
 * NOTE:
 *
 *   If you add "#define APPROXIMATE_PARSING" on the first line of this file
 *   the parser will see the following XML-stream:
 *     <data name="n1">
 *     <data name="n2">
 *     <data name="n3" />
 *   as equivalent to the following XML-stream:
 *     <data name="n1" />
 *     <data name="n2" />
 *     <data name="n3" />
 *   This can be useful for badly-formed XML-streams but prevent the use
 *   of the following XML-stream (problem is: tags at contiguous levels
 *   have the same names):
 *     <data name="n1">
 *        <data name="n2">
 *            <data name="n3" />
 *        </data>
 *     </data>
 *
 * NOTE:
 *
 *   If you add "#define _XMLPARSER_NO_MESSAGEBOX_" on the first line of this file
 *   the "openFileHelper" function will always display error messages inside the
 *   console instead of inside a message-box-window. Message-box-windows are
 *   available on windows 9x/NT/2000/XP/Vista only.
 *
 * Copyright (c) 2002, Frank Vanden Berghen
 * All rights reserved.
 *
 * The following license terms apply to projects that are in some way related to
 * the "ZeroMQ project", including applications
 * using "ZeroMQ project" and tools developed
 * for enhancing "ZeroMQ project". All other projects
 * (not related to "ZeroMQ project") have to use this
 * code under the Aladdin Free Public License (AFPL)
 * See the file "AFPL-license.txt" for more informations about the AFPL license.
 * (see http://www.artifex.com/downloads/doc/Public.htm for detailed AFPL terms)
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Frank Vanden Berghen nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Frank Vanden Berghen ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 ****************************************************************************
 */

#if defined _MSC_VER
#pragma warning (push)
#pragma warning (disable:4996)
#endif

#ifndef _CRT_SECURE_NO_DEPRECATE
#define _CRT_SECURE_NO_DEPRECATE
#endif
#include "xmlParser.hpp"
#ifdef _XMLWINDOWS
//#ifdef _DEBUG
//#define _CRTDBG_MAP_ALLOC
//#include <crtdbg.h>
//#endif
#define WIN32_LEAN_AND_MEAN
#include <windows.h> // to have IsTextUnicode, MultiByteToWideChar, WideCharToMultiByte to handle unicode files
                     // to have "MessageBoxA" to display error messages for openFilHelper
#endif

#include <memory.h>
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

XMLCSTR XMLNode::getVersion() { return _CXML("v2.39"); }
void freeXMLString(XMLSTR t){if(t)free(t);}

static XMLNode::XMLCharEncoding characterEncoding=XMLNode::char_encoding_UTF8;
static char guessWideCharChars=1, dropWhiteSpace=1, removeCommentsInMiddleOfText=1;

inline int mmin( const int t1, const int t2 ) { return t1 < t2 ? t1 : t2; }

// You can modify the initialization of the variable "XMLClearTags" below
// to change the clearTags that are currently recognized by the library.
// The number on the second columns is the length of the string inside the
// first column. The "<!DOCTYPE" declaration must be the second in the list.
// The "<!--" declaration must be the third in the list.
typedef struct { XMLCSTR lpszOpen; int openTagLen; XMLCSTR lpszClose;} ALLXMLClearTag;
static ALLXMLClearTag XMLClearTags[] =
{
    {    _CXML("<![CDATA["),9,  _CXML("]]>")      },
    {    _CXML("<!DOCTYPE"),9,  _CXML(">")        },
    {    _CXML("<!--")     ,4,  _CXML("-->")      },
    {    _CXML("<PRE>")    ,5,  _CXML("</PRE>")   },
//  {    _CXML("<Script>") ,8,  _CXML("</Script>")},
    {    NULL              ,0,  NULL           }
};

// You can modify the initialization of the variable "XMLEntities" below
// to change the character entities that are currently recognized by the library.
// The number on the second columns is the length of the string inside the
// first column. Additionally, the syntaxes "&#xA0;" and "&#160;" are recognized.
typedef struct { XMLCSTR s; int l; XMLCHAR c;} XMLCharacterEntity;
static XMLCharacterEntity XMLEntities[] =
{
    { _CXML("&amp;" ), 5, _CXML('&' )},
    { _CXML("&lt;"  ), 4, _CXML('<' )},
    { _CXML("&gt;"  ), 4, _CXML('>' )},
    { _CXML("&quot;"), 6, _CXML('\"')},
    { _CXML("&apos;"), 6, _CXML('\'')},
    { NULL           , 0, '\0'    }
};

// When rendering the XMLNode to a string (using the "createXMLString" function),
// you can ask for a beautiful formatting. This formatting is using the
// following indentation character:
#define INDENTCHAR _CXML('\t')

// The following function parses the XML errors into a user friendly string.
// You can edit this to change the output language of the library to something else.
XMLCSTR XMLNode::getError(XMLError xerror)
{
    switch (xerror)
    {
    case eXMLErrorNone:                  return _CXML("No error");
    case eXMLErrorMissingEndTag:         return _CXML("Warning: Unmatched end tag");
    case eXMLErrorNoXMLTagFound:         return _CXML("Warning: No XML tag found");
    case eXMLErrorEmpty:                 return _CXML("Error: No XML data");
    case eXMLErrorMissingTagName:        return _CXML("Error: Missing start tag name");
    case eXMLErrorMissingEndTagName:     return _CXML("Error: Missing end tag name");
    case eXMLErrorUnmatchedEndTag:       return _CXML("Error: Unmatched end tag");
    case eXMLErrorUnmatchedEndClearTag:  return _CXML("Error: Unmatched clear tag end");
    case eXMLErrorUnexpectedToken:       return _CXML("Error: Unexpected token found");
    case eXMLErrorNoElements:            return _CXML("Error: No elements found");
    case eXMLErrorFileNotFound:          return _CXML("Error: File not found");
    case eXMLErrorFirstTagNotFound:      return _CXML("Error: First Tag not found");
    case eXMLErrorUnknownCharacterEntity:return _CXML("Error: Unknown character entity");
    case eXMLErrorCharacterCodeAbove255: return _CXML("Error: Character code above 255 is forbidden in MultiByte char mode.");
    case eXMLErrorCharConversionError:   return _CXML("Error: unable to convert between WideChar and MultiByte chars");
    case eXMLErrorCannotOpenWriteFile:   return _CXML("Error: unable to open file for writing");
    case eXMLErrorCannotWriteFile:       return _CXML("Error: cannot write into file");

    case eXMLErrorBase64DataSizeIsNotMultipleOf4: return _CXML("Warning: Base64-string length is not a multiple of 4");
    case eXMLErrorBase64DecodeTruncatedData:      return _CXML("Warning: Base64-string is truncated");
    case eXMLErrorBase64DecodeIllegalCharacter:   return _CXML("Error: Base64-string contains an illegal character");
    case eXMLErrorBase64DecodeBufferTooSmall:     return _CXML("Error: Base64 decode output buffer is too small");
    };
    return _CXML("Unknown");
}

/////////////////////////////////////////////////////////////////////////
//      Here start the abstraction layer to be OS-independent          //
/////////////////////////////////////////////////////////////////////////

// Here is an abstraction layer to access some common string manipulation functions.
// The abstraction layer is currently working for gcc, Microsoft Visual Studio 6.0,
// Microsoft Visual Studio .NET, CC (sun compiler) and Borland C++.
// If you plan to "port" the library to a new system/compiler, all you have to do is
// to edit the following lines.
#ifdef XML_NO_WIDE_CHAR
char myIsTextWideChar(const void *b, int len) { return FALSE; }
#else
    #if defined (UNDER_CE) || !defined(_XMLWINDOWS)
    char myIsTextWideChar(const void *b, int len) // inspired by the Wine API: RtlIsTextUnicode
    {
#ifdef sun
        // for SPARC processors: wchar_t* buffers must always be alligned, otherwise it's a char* buffer.
        if ((((unsigned long)b)%sizeof(wchar_t))!=0) return FALSE;
#endif
        const wchar_t *s=(const wchar_t*)b;

        // buffer too small:
        if (len<(int)sizeof(wchar_t)) return FALSE;

        // odd length test
        if (len&1) return FALSE;

        /* only checks the first 256 characters */
        len=mmin(256,len/sizeof(wchar_t));

        // Check for the special byte order:
        if (*((unsigned short*)s) == 0xFFFE) return TRUE;     // IS_TEXT_UNICODE_REVERSE_SIGNATURE;
        if (*((unsigned short*)s) == 0xFEFF) return TRUE;      // IS_TEXT_UNICODE_SIGNATURE

        // checks for ASCII characters in the UNICODE stream
        int i,stats=0;
        for (i=0; i<len; i++) if (s[i]<=(unsigned short)255) stats++;
        if (stats>len/2) return TRUE;

        // Check for UNICODE NULL chars
        for (i=0; i<len; i++) if (!s[i]) return TRUE;

        return FALSE;
    }
    #else
    char myIsTextWideChar(const void *b,int l) { return (char)IsTextUnicode((CONST LPVOID)b,l,NULL); }
    #endif
#endif

#ifdef _XMLWINDOWS
// for Microsoft Visual Studio 6.0 and Microsoft Visual Studio .NET and Borland C++ Builder 6.0
    #ifdef _XMLWIDECHAR
        wchar_t *myMultiByteToWideChar(const char *s, XMLNode::XMLCharEncoding ce)
        {
            int i;
            if (ce==XMLNode::char_encoding_UTF8) i=(int)MultiByteToWideChar(CP_UTF8,0             ,s,-1,NULL,0);
            else                            i=(int)MultiByteToWideChar(CP_ACP ,MB_PRECOMPOSED,s,-1,NULL,0);
            if (i<0) return NULL;
            wchar_t *d=(wchar_t *)malloc((i+1)*sizeof(XMLCHAR));
            if (ce==XMLNode::char_encoding_UTF8) i=(int)MultiByteToWideChar(CP_UTF8,0             ,s,-1,d,i);
            else                            i=(int)MultiByteToWideChar(CP_ACP ,MB_PRECOMPOSED,s,-1,d,i);
            d[i]=0;
            return d;
        }
        static inline FILE *xfopen(XMLCSTR filename,XMLCSTR mode) { return _wfopen(filename,mode); }
        static inline int xstrlen(XMLCSTR c)   { return (int)wcslen(c); }
        static inline int xstrnicmp(XMLCSTR c1, XMLCSTR c2, int l) { return _wcsnicmp(c1,c2,l);}
        static inline int xstrncmp(XMLCSTR c1, XMLCSTR c2, int l) { return wcsncmp(c1,c2,l);}
        static inline int xstricmp(XMLCSTR c1, XMLCSTR c2) { return _wcsicmp(c1,c2); }
        static inline XMLSTR xstrstr(XMLCSTR c1, XMLCSTR c2) { return (XMLSTR)wcsstr(c1,c2); }
        static inline XMLSTR xstrcpy(XMLSTR c1, XMLCSTR c2) { return (XMLSTR)wcscpy(c1,c2); }
    #else
        char *myWideCharToMultiByte(const wchar_t *s)
        {
            UINT codePage=CP_ACP; if (characterEncoding==XMLNode::char_encoding_UTF8) codePage=CP_UTF8;
            int i=(int)WideCharToMultiByte(codePage,  // code page
                0,                       // performance and mapping flags
                s,                       // wide-character string
                -1,                       // number of chars in string
                NULL,                       // buffer for new string
                0,                       // size of buffer
                NULL,                    // default for unmappable chars
                NULL                     // set when default char used
                );
            if (i<0) return NULL;
            char *d=(char*)malloc(i+1);
            WideCharToMultiByte(codePage,  // code page
                0,                       // performance and mapping flags
                s,                       // wide-character string
                -1,                       // number of chars in string
                d,                       // buffer for new string
                i,                       // size of buffer
                NULL,                    // default for unmappable chars
                NULL                     // set when default char used
                );
            d[i]=0;
            return d;
        }
        static inline FILE *xfopen(XMLCSTR filename,XMLCSTR mode) { return fopen(filename,mode); }
        static inline int xstrlen(XMLCSTR c)   { return (int)strlen(c); }
        #ifdef __BORLANDC__
            static inline int xstrnicmp(XMLCSTR c1, XMLCSTR c2, int l) { return strnicmp(c1,c2,l);}
            static inline int xstricmp(XMLCSTR c1, XMLCSTR c2) { return stricmp(c1,c2); }
        #else
            static inline int xstrnicmp(XMLCSTR c1, XMLCSTR c2, int l) { return _strnicmp(c1,c2,l);}
            static inline int xstricmp(XMLCSTR c1, XMLCSTR c2) { return _stricmp(c1,c2); }
        #endif
        static inline int xstrncmp(XMLCSTR c1, XMLCSTR c2, int l) { return strncmp(c1,c2,l);}
        static inline XMLSTR xstrstr(XMLCSTR c1, XMLCSTR c2) { return (XMLSTR)strstr(c1,c2); }
        static inline XMLSTR xstrcpy(XMLSTR c1, XMLCSTR c2) { return (XMLSTR)strcpy(c1,c2); }
    #endif
#else
// for gcc and CC
    #ifdef XML_NO_WIDE_CHAR
        char *myWideCharToMultiByte(const wchar_t *s) { return NULL; }
    #else
        char *myWideCharToMultiByte(const wchar_t *s)
        {
            const wchar_t *ss=s;
            int i=(int)wcsrtombs(NULL,&ss,0,NULL);
            if (i<0) return NULL;
            char *d=(char *)malloc(i+1);
            wcsrtombs(d,&s,i,NULL);
            d[i]=0;
            return d;
        }
    #endif
    #ifdef _XMLWIDECHAR
        wchar_t *myMultiByteToWideChar(const char *s, XMLNode::XMLCharEncoding ce)
        {
            const char *ss=s;
            int i=(int)mbsrtowcs(NULL,&ss,0,NULL);
            if (i<0) return NULL;
            wchar_t *d=(wchar_t *)malloc((i+1)*sizeof(wchar_t));
            mbsrtowcs(d,&s,i,NULL);
            d[i]=0;
            return d;
        }
        int xstrlen(XMLCSTR c)   { return wcslen(c); }
        #ifdef sun
        // for CC
           #include <widec.h>
           static inline int xstrnicmp(XMLCSTR c1, XMLCSTR c2, int l) { return wsncasecmp(c1,c2,l);}
           static inline int xstrncmp(XMLCSTR c1, XMLCSTR c2, int l) { return wsncmp(c1,c2,l);}
           static inline int xstricmp(XMLCSTR c1, XMLCSTR c2) { return wscasecmp(c1,c2); }
        #else
        // for gcc
           static inline int xstrnicmp(XMLCSTR c1, XMLCSTR c2, int l) { return wcsncasecmp(c1,c2,l);}
           static inline int xstrncmp(XMLCSTR c1, XMLCSTR c2, int l) { return wcsncmp(c1,c2,l);}
           static inline int xstricmp(XMLCSTR c1, XMLCSTR c2) { return wcscasecmp(c1,c2); }
        #endif
        static inline XMLSTR xstrstr(XMLCSTR c1, XMLCSTR c2) { return (XMLSTR)wcsstr(c1,c2); }
        static inline XMLSTR xstrcpy(XMLSTR c1, XMLCSTR c2) { return (XMLSTR)wcscpy(c1,c2); }
        static inline FILE *xfopen(XMLCSTR filename,XMLCSTR mode)
        {
            char *filenameAscii=myWideCharToMultiByte(filename);
            FILE *f;
            if (mode[0]==_CXML('r')) f=fopen(filenameAscii,"rb");
            else                     f=fopen(filenameAscii,"wb");
            free(filenameAscii);
            return f;
        }
    #else
        static inline FILE *xfopen(XMLCSTR filename,XMLCSTR mode) { return fopen(filename,mode); }
        static inline int xstrlen(XMLCSTR c)   { return strlen(c); }
        static inline int xstrnicmp(XMLCSTR c1, XMLCSTR c2, int l) { return strncasecmp(c1,c2,l);}
        static inline int xstrncmp(XMLCSTR c1, XMLCSTR c2, int l) { return strncmp(c1,c2,l);}
        static inline int xstricmp(XMLCSTR c1, XMLCSTR c2) { return strcasecmp(c1,c2); }
        static inline XMLSTR xstrstr(XMLCSTR c1, XMLCSTR c2) { return (XMLSTR)strstr(c1,c2); }
        static inline XMLSTR xstrcpy(XMLSTR c1, XMLCSTR c2) { return (XMLSTR)strcpy(c1,c2); }
    #endif
    static inline int _strnicmp(const char *c1,const char *c2, int l) { return strncasecmp(c1,c2,l);}
#endif


///////////////////////////////////////////////////////////////////////////////
//            the "xmltoc,xmltob,xmltoi,xmltol,xmltof,xmltoa" functions      //
///////////////////////////////////////////////////////////////////////////////
// These 6 functions are not used inside the XMLparser.
// There are only here as "convenience" functions for the user.
// If you don't need them, you can delete them without any trouble.
#ifdef _XMLWIDECHAR
    #ifdef _XMLWINDOWS
    // for Microsoft Visual Studio 6.0 and Microsoft Visual Studio .NET and Borland C++ Builder 6.0
        char    xmltob(XMLCSTR t,int     v){ if (t&&(*t)) return (char)_wtoi(t); return v; }
        int     xmltoi(XMLCSTR t,int     v){ if (t&&(*t)) return _wtoi(t); return v; }
        long    xmltol(XMLCSTR t,long    v){ if (t&&(*t)) return _wtol(t); return v; }
        double  xmltof(XMLCSTR t,double  v){ if (t&&(*t)) wscanf(t, "%f", &v); /*v=_wtof(t);*/ return v; }
    #else
        #ifdef sun
        // for CC
           #include <widec.h>
           char    xmltob(XMLCSTR t,int     v){ if (t) return (char)wstol(t,NULL,10); return v; }
           int     xmltoi(XMLCSTR t,int     v){ if (t) return (int)wstol(t,NULL,10); return v; }
           long    xmltol(XMLCSTR t,long    v){ if (t) return wstol(t,NULL,10); return v; }
        #else
        // for gcc
           char    xmltob(XMLCSTR t,int     v){ if (t) return (char)wcstol(t,NULL,10); return v; }
           int     xmltoi(XMLCSTR t,int     v){ if (t) return (int)wcstol(t,NULL,10); return v; }
           long    xmltol(XMLCSTR t,long    v){ if (t) return wcstol(t,NULL,10); return v; }
        #endif
		double  xmltof(XMLCSTR t,double  v){ if (t&&(*t)) wscanf(t, "%f", &v); /*v=_wtof(t);*/ return v; }
    #endif
#else
    char    xmltob(XMLCSTR t,char    v){ if (t&&(*t)) return (char)atoi(t); return v; }
    int     xmltoi(XMLCSTR t,int     v){ if (t&&(*t)) return atoi(t); return v; }
    long    xmltol(XMLCSTR t,long    v){ if (t&&(*t)) return atol(t); return v; }
    double  xmltof(XMLCSTR t,double  v){ if (t&&(*t)) return atof(t); return v; }
#endif
XMLCSTR xmltoa(XMLCSTR t,XMLCSTR v){ if (t)       return  t; return v; }
XMLCHAR xmltoc(XMLCSTR t,XMLCHAR v){ if (t&&(*t)) return *t; return v; }

/////////////////////////////////////////////////////////////////////////
//                    the "openFileHelper" function                    //
/////////////////////////////////////////////////////////////////////////

// Since each application has its own way to report and deal with errors, you should modify & rewrite
// the following "openFileHelper" function to get an "error reporting mechanism" tailored to your needs.
XMLNode XMLNode::openFileHelper(XMLCSTR filename, XMLCSTR tag)
{
    // guess the value of the global parameter "characterEncoding"
    // (the guess is based on the first 200 bytes of the file).
    FILE *f=xfopen(filename,_CXML("rb"));
    if (f)
    {
        char bb[205];
        int l=(int)fread(bb,1,200,f);
        setGlobalOptions(guessCharEncoding(bb,l),guessWideCharChars,dropWhiteSpace,removeCommentsInMiddleOfText);
        fclose(f);
    }

    // parse the file
    XMLResults pResults;
    XMLNode xnode=XMLNode::parseFile(filename,tag,&pResults);

    // display error message (if any)
    if (pResults.error != eXMLErrorNone)
    {
        // create message
        char message[2000],*s1=(char*)"",*s3=(char*)""; XMLCSTR s2=_CXML("");
        if (pResults.error==eXMLErrorFirstTagNotFound) { s1=(char*)"First Tag should be '"; s2=tag; s3=(char*)"'.\n"; }
        sprintf(message,
#ifdef _XMLWIDECHAR
            "XML Parsing error inside file '%S'.\n%S\nAt line %i, column %i.\n%s%S%s"
#else
            "XML Parsing error inside file '%s'.\n%s\nAt line %i, column %i.\n%s%s%s"
#endif
            ,filename,XMLNode::getError(pResults.error),pResults.nLine,pResults.nColumn,s1,s2,s3);

        // display message
#if defined(_XMLWINDOWS) && !defined(UNDER_CE) && !defined(_XMLPARSER_NO_MESSAGEBOX_)
        MessageBoxA(NULL,message,"XML Parsing error",MB_OK|MB_ICONERROR|MB_TOPMOST);
#else
        printf("%s",message);
#endif
        exit(255);
    }
    return xnode;
}

/////////////////////////////////////////////////////////////////////////
//      Here start the core implementation of the XMLParser library    //
/////////////////////////////////////////////////////////////////////////

// You should normally not change anything below this point.

#ifndef _XMLWIDECHAR
// If "characterEncoding=ascii" then we assume that all characters have the same length of 1 byte.
// If "characterEncoding=UTF8" then the characters have different lengths (from 1 byte to 4 bytes).
// If "characterEncoding=ShiftJIS" then the characters have different lengths (from 1 byte to 2 bytes).
// This table is used as lookup-table to know the length of a character (in byte) based on the
// content of the first byte of the character.
// (note: if you modify this, you must always have XML_utf8ByteTable[0]=0 ).
static const char XML_utf8ByteTable[256] =
{
    //  0 1 2 3 4 5 6 7 8 9 a b c d e f
    0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x00
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x10
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x20
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x30
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x40
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x50
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x60
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x70 End of ASCII range
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x80 0x80 to 0xc1 invalid
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x90
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0xa0
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0xb0
    1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xc0 0xc2 to 0xdf 2 byte
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xd0
    3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,// 0xe0 0xe0 to 0xef 3 byte
    4,4,4,4,4,1,1,1,1,1,1,1,1,1,1,1 // 0xf0 0xf0 to 0xf4 4 byte, 0xf5 and higher invalid
};
static const char XML_legacyByteTable[256] =
{
    0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
};
static const char XML_sjisByteTable[256] =
{
    //  0 1 2 3 4 5 6 7 8 9 a b c d e f
    0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x00
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x10
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x20
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x30
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x40
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x50
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x60
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x70
    1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0x80 0x81 to 0x9F 2 bytes
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0x90
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0xa0
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0xb0
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0xc0
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0xd0
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xe0 0xe0 to 0xef 2 bytes
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 // 0xf0
};
static const char XML_gb2312ByteTable[256] =
{
//  0 1 2 3 4 5 6 7 8 9 a b c d e f
    0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x00
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x10
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x20
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x30
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x40
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x50
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x60
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x70
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x80
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x90
    1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xa0 0xa1 to 0xf7 2 bytes
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xb0
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xc0
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xd0
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xe0
    2,2,2,2,2,2,2,2,1,1,1,1,1,1,1,1 // 0xf0
};
static const char XML_gbk_big5_ByteTable[256] =
{
    //  0 1 2 3 4 5 6 7 8 9 a b c d e f
    0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x00
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x10
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x20
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x30
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x40
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x50
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x60
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,// 0x70
    1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0x80 0x81 to 0xfe 2 bytes
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0x90
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xa0
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xb0
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xc0
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xd0
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,// 0xe0
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1 // 0xf0
};
static const char *XML_ByteTable=(const char *)XML_utf8ByteTable; // the default is "characterEncoding=XMLNode::encoding_UTF8"
#endif


XMLNode XMLNode::emptyXMLNode;
XMLClear XMLNode::emptyXMLClear={ NULL, NULL, NULL};
XMLAttribute XMLNode::emptyXMLAttribute={ NULL, NULL};

// Enumeration used to decipher what type a token is
typedef enum XMLTokenTypeTag
{
    eTokenText = 0,
    eTokenQuotedText,
    eTokenTagStart,         /* "<"            */
    eTokenTagEnd,           /* "</"           */
    eTokenCloseTag,         /* ">"            */
    eTokenEquals,           /* "="            */
    eTokenDeclaration,      /* "<?"           */
    eTokenShortHandClose,   /* "/>"           */
    eTokenClear,
    eTokenError
} XMLTokenType;

// Main structure used for parsing XML
typedef struct XML
{
    XMLCSTR                lpXML;
    XMLCSTR                lpszText;
    int                    nIndex,nIndexMissigEndTag;
    enum XMLError          error;
    XMLCSTR                lpEndTag;
    int                    cbEndTag;
    XMLCSTR                lpNewElement;
    int                    cbNewElement;
    int                    nFirst;
} XML;

typedef struct
{
    ALLXMLClearTag *pClr;
    XMLCSTR     pStr;
} NextToken;

// Enumeration used when parsing attributes
typedef enum Attrib
{
    eAttribName = 0,
    eAttribEquals,
    eAttribValue
} Attrib;

// Enumeration used when parsing elements to dictate whether we are currently
// inside a tag
typedef enum Status
{
    eInsideTag = 0,
    eOutsideTag
} Status;

XMLError XMLNode::writeToFile(XMLCSTR filename, const char *encoding, char nFormat) const
{
    if (!d) return eXMLErrorNone;
    FILE *f=xfopen(filename,_CXML("wb"));
    if (!f) return eXMLErrorCannotOpenWriteFile;
#ifdef _XMLWIDECHAR
    unsigned char h[2]={ 0xFF, 0xFE };
    if (!fwrite(h,2,1,f)) 
    {
        fclose(f);
        return eXMLErrorCannotWriteFile;
    }
    if ((!isDeclaration())&&((d->lpszName)||(!getChildNode().isDeclaration())))
    {
        if (!fwrite(L"<?xml version=\"1.0\" encoding=\"utf-16\"?>\n",sizeof(wchar_t)*40,1,f))
        {
            fclose(f);
            return eXMLErrorCannotWriteFile;
        }
    }
#else
    if ((!isDeclaration())&&((d->lpszName)||(!getChildNode().isDeclaration())))
    {
        if (characterEncoding==char_encoding_UTF8)
        {
            // header so that windows recognize the file as UTF-8:
            unsigned char h[3]={0xEF,0xBB,0xBF}; 
            if (!fwrite(h,3,1,f)) 
            {
                fclose(f);
                return eXMLErrorCannotWriteFile;
            }
            encoding="utf-8";
        } else if (characterEncoding==char_encoding_ShiftJIS) encoding="SHIFT-JIS";

        if (!encoding) encoding="ISO-8859-1";
        if (fprintf(f,"<?xml version=\"1.0\" encoding=\"%s\"?>\n",encoding)<0) 
        {
            fclose(f);
            return eXMLErrorCannotWriteFile;
        }
    } else
    {
        if (characterEncoding==char_encoding_UTF8)
        {
            unsigned char h[3]={0xEF,0xBB,0xBF}; 
            if (!fwrite(h,3,1,f)) 
            {
                fclose(f);
                return eXMLErrorCannotWriteFile;
            }
        }
    }
#endif
    int i;
    XMLSTR t=createXMLString(nFormat,&i);
    if (!fwrite(t,sizeof(XMLCHAR)*i,1,f)) 
    {
        fclose(f);
        return eXMLErrorCannotWriteFile;
    }
    if (fclose(f)!=0) return eXMLErrorCannotWriteFile;
    free(t);
    return eXMLErrorNone;
}

// Duplicate a given string.
XMLSTR stringDup(XMLCSTR lpszData, int cbData)
{
    if (lpszData==NULL) return NULL;

    XMLSTR lpszNew;
    if (cbData==-1) cbData=(int)xstrlen(lpszData);
    lpszNew = (XMLSTR)malloc((cbData+1) * sizeof(XMLCHAR));
    if (lpszNew)
    {
        memcpy(lpszNew, lpszData, (cbData) * sizeof(XMLCHAR));
        lpszNew[cbData] = (XMLCHAR)NULL;
    }
    return lpszNew;
}

XMLSTR ToXMLStringTool::toXMLUnSafe(XMLSTR dest,XMLCSTR source)
{
    XMLSTR dd=dest;
    XMLCHAR ch;
    XMLCharacterEntity *entity;
    while ((ch=*source))
    {
        entity=XMLEntities;
        do
        {
            if (ch==entity->c) {xstrcpy(dest,entity->s); dest+=entity->l; source++; goto out_of_loop1; }
            entity++;
        } while(entity->s);
#ifdef _XMLWIDECHAR
        *(dest++)=*(source++);
#else
        switch(XML_ByteTable[(unsigned char)ch])
        {
        case 4: *(dest++)=*(source++);
        case 3: *(dest++)=*(source++);
        case 2: *(dest++)=*(source++);
        case 1: *(dest++)=*(source++);
        }
#endif
out_of_loop1:
        ;
    }
    *dest=0;
    return dd;
}

// private (used while rendering):
int ToXMLStringTool::lengthXMLString(XMLCSTR source)
{
    int r=0;
    XMLCharacterEntity *entity;
    XMLCHAR ch;
    while ((ch=*source))
    {
        entity=XMLEntities;
        do
        {
            if (ch==entity->c) { r+=entity->l; source++; goto out_of_loop1; }
            entity++;
        } while(entity->s);
#ifdef _XMLWIDECHAR
        r++; source++;
#else
        ch=XML_ByteTable[(unsigned char)ch]; r+=ch; source+=ch;
#endif
out_of_loop1:
        ;
    }
    return r;
}

ToXMLStringTool::~ToXMLStringTool(){ freeBuffer(); }
void ToXMLStringTool::freeBuffer(){ if (buf) free(buf); buf=NULL; buflen=0; }
XMLSTR ToXMLStringTool::toXML(XMLCSTR source)
{
    int l=lengthXMLString(source)+1;
    if (l>buflen) { buflen=l; buf=(XMLSTR)realloc(buf,l*sizeof(XMLCHAR)); }
    return toXMLUnSafe(buf,source);
}

// private:
XMLSTR fromXMLString(XMLCSTR s, int lo, XML *pXML)
{
    // This function is the opposite of the function "toXMLString". It decodes the escape
    // sequences &amp;, &quot;, &apos;, &lt;, &gt; and replace them by the characters
    // &,",',<,>. This function is used internally by the XML Parser. All the calls to
    // the XML library will always gives you back "decoded" strings.
    //
    // in: string (s) and length (lo) of string
    // out:  new allocated string converted from xml
    if (!s) return NULL;

    int ll=0,j;
    XMLSTR d;
    XMLCSTR ss=s;
    XMLCharacterEntity *entity;
    while ((lo>0)&&(*s))
    {
        if (*s==_CXML('&'))
        {
            if ((lo>2)&&(s[1]==_CXML('#')))
            {
                s+=2; lo-=2;
                if ((*s==_CXML('X'))||(*s==_CXML('x'))) { s++; lo--; }
                while ((*s)&&(*s!=_CXML(';'))&&((lo--)>0)) s++;
                if (*s!=_CXML(';'))
                {
                    pXML->error=eXMLErrorUnknownCharacterEntity;
                    return NULL;
                }
                s++; lo--;
            } else
            {
                entity=XMLEntities;
                do
                {
                    if ((lo>=entity->l)&&(xstrnicmp(s,entity->s,entity->l)==0)) { s+=entity->l; lo-=entity->l; break; }
                    entity++;
                } while(entity->s);
                if (!entity->s)
                {
                    pXML->error=eXMLErrorUnknownCharacterEntity;
                    return NULL;
                }
            }
        } else
        {
#ifdef _XMLWIDECHAR
            s++; lo--;
#else
            j=XML_ByteTable[(unsigned char)*s]; s+=j; lo-=j; ll+=j-1;
#endif
        }
        ll++;
    }

    d=(XMLSTR)malloc((ll+1)*sizeof(XMLCHAR));
    s=d;
    while (ll-->0)
    {
        if (*ss==_CXML('&'))
        {
            if (ss[1]==_CXML('#'))
            {
                ss+=2; j=0;
                if ((*ss==_CXML('X'))||(*ss==_CXML('x')))
                {
                    ss++;
                    while (*ss!=_CXML(';'))
                    {
                        if ((*ss>=_CXML('0'))&&(*ss<=_CXML('9'))) j=(j<<4)+*ss-_CXML('0');
                        else if ((*ss>=_CXML('A'))&&(*ss<=_CXML('F'))) j=(j<<4)+*ss-_CXML('A')+10;
                        else if ((*ss>=_CXML('a'))&&(*ss<=_CXML('f'))) j=(j<<4)+*ss-_CXML('a')+10;
                        else { free((void*)s); pXML->error=eXMLErrorUnknownCharacterEntity;return NULL;}
                        ss++;
                    }
                } else
                {
                    while (*ss!=_CXML(';'))
                    {
                        if ((*ss>=_CXML('0'))&&(*ss<=_CXML('9'))) j=(j*10)+*ss-_CXML('0');
                        else { free((void*)s); pXML->error=eXMLErrorUnknownCharacterEntity;return NULL;}
                        ss++;
                    }
                }
#ifndef _XMLWIDECHAR
                if (j>255) { free((void*)s); pXML->error=eXMLErrorCharacterCodeAbove255;return NULL;}
#endif
                (*d++)=(XMLCHAR)j; ss++;
            } else
            {
                entity=XMLEntities;
                do
                {
                    if (xstrnicmp(ss,entity->s,entity->l)==0) { *(d++)=entity->c; ss+=entity->l; break; }
                    entity++;
                } while(entity->s);
            }
        } else
        {
#ifdef _XMLWIDECHAR
            *(d++)=*(ss++);
#else
            switch(XML_ByteTable[(unsigned char)*ss])
            {
            case 4: *(d++)=*(ss++); ll--;
            case 3: *(d++)=*(ss++); ll--;
            case 2: *(d++)=*(ss++); ll--;
            case 1: *(d++)=*(ss++);
            }
#endif
        }
    }
    *d=0;
    return (XMLSTR)s;
}

#define XML_isSPACECHAR(ch) ((ch==_CXML('\n'))||(ch==_CXML(' '))||(ch== _CXML('\t'))||(ch==_CXML('\r')))

// private:
char myTagCompare(XMLCSTR cclose, XMLCSTR copen)
// !!!! WARNING strange convention&:
// return 0 if equals
// return 1 if different
{
    if (!cclose) return 1;
    int l=(int)xstrlen(cclose);
    if (xstrnicmp(cclose, copen, l)!=0) return 1;
    const XMLCHAR c=copen[l];
    if (XML_isSPACECHAR(c)||
        (c==_CXML('/' ))||
        (c==_CXML('<' ))||
        (c==_CXML('>' ))||
        (c==_CXML('=' ))) return 0;
    return 1;
}

// Obtain the next character from the string.
static inline XMLCHAR getNextChar(XML *pXML)
{
    XMLCHAR ch = pXML->lpXML[pXML->nIndex];
#ifdef _XMLWIDECHAR
    if (ch!=0) pXML->nIndex++;
#else
    pXML->nIndex+=XML_ByteTable[(unsigned char)ch];
#endif
    return ch;
}

// Find the next token in a string.
// pcbToken contains the number of characters that have been read.
static NextToken GetNextToken(XML *pXML, int *pcbToken, enum XMLTokenTypeTag *pType)
{
    NextToken        result;
    XMLCHAR            ch;
    XMLCHAR            chTemp;
    int              indexStart,nFoundMatch,nIsText=FALSE;
    result.pClr=NULL; // prevent warning

    // Find next non-white space character
    do { indexStart=pXML->nIndex; ch=getNextChar(pXML); } while XML_isSPACECHAR(ch);

    if (ch)
    {
        // Cache the current string pointer
        result.pStr = &pXML->lpXML[indexStart];

        // First check whether the token is in the clear tag list (meaning it
        // does not need formatting).
        ALLXMLClearTag *ctag=XMLClearTags;
        do
        {
            if (xstrncmp(ctag->lpszOpen, result.pStr, ctag->openTagLen)==0)
            {
                result.pClr=ctag;
                pXML->nIndex+=ctag->openTagLen-1;
                *pType=eTokenClear;
                return result;
            }
            ctag++;
        } while(ctag->lpszOpen);

        // If we didn't find a clear tag then check for standard tokens
        switch(ch)
        {
        // Check for quotes
        case _CXML('\''):
        case _CXML('\"'):
            // Type of token
            *pType = eTokenQuotedText;
            chTemp = ch;

            // Set the size
            nFoundMatch = FALSE;

            // Search through the string to find a matching quote
            while((ch = getNextChar(pXML)))
            {
                if (ch==chTemp) { nFoundMatch = TRUE; break; }
                if (ch==_CXML('<')) break;
            }

            // If we failed to find a matching quote
            if (nFoundMatch == FALSE)
            {
                pXML->nIndex=indexStart+1;
                nIsText=TRUE;
                break;
            }

//  4.02.2002
//            if (FindNonWhiteSpace(pXML)) pXML->nIndex--;

            break;

        // Equals (used with attribute values)
        case _CXML('='):
            *pType = eTokenEquals;
            break;

        // Close tag
        case _CXML('>'):
            *pType = eTokenCloseTag;
            break;

        // Check for tag start and tag end
        case _CXML('<'):

            // Peek at the next character to see if we have an end tag '</',
            // or an xml declaration '<?'
            chTemp = pXML->lpXML[pXML->nIndex];

            // If we have a tag end...
            if (chTemp == _CXML('/'))
            {
                // Set the type and ensure we point at the next character
                getNextChar(pXML);
                *pType = eTokenTagEnd;
            }

            // If we have an XML declaration tag
            else if (chTemp == _CXML('?'))
            {

                // Set the type and ensure we point at the next character
                getNextChar(pXML);
                *pType = eTokenDeclaration;
            }

            // Otherwise we must have a start tag
            else
            {
                *pType = eTokenTagStart;
            }
            break;

        // Check to see if we have a short hand type end tag ('/>').
        case _CXML('/'):

            // Peek at the next character to see if we have a short end tag '/>'
            chTemp = pXML->lpXML[pXML->nIndex];

            // If we have a short hand end tag...
            if (chTemp == _CXML('>'))
            {
                // Set the type and ensure we point at the next character
                getNextChar(pXML);
                *pType = eTokenShortHandClose;
                break;
            }

            // If we haven't found a short hand closing tag then drop into the
            // text process

        // Other characters
        default:
            nIsText = TRUE;
        }

        // If this is a TEXT node
        if (nIsText)
        {
            // Indicate we are dealing with text
            *pType = eTokenText;
            while((ch = getNextChar(pXML)))
            {
                if XML_isSPACECHAR(ch)
                {
                    indexStart++; break;

                } else if (ch==_CXML('/'))
                {
                    // If we find a slash then this maybe text or a short hand end tag
                    // Peek at the next character to see it we have short hand end tag
                    ch=pXML->lpXML[pXML->nIndex];
                    // If we found a short hand end tag then we need to exit the loop
                    if (ch==_CXML('>')) { pXML->nIndex--; break; }

                } else if ((ch==_CXML('<'))||(ch==_CXML('>'))||(ch==_CXML('=')))
                {
                    pXML->nIndex--; break;
                }
            }
        }
        *pcbToken = pXML->nIndex-indexStart;
    } else
    {
        // If we failed to obtain a valid character
        *pcbToken = 0;
        *pType = eTokenError;
        result.pStr=NULL;
    }

    return result;
}

XMLCSTR XMLNode::updateName_WOSD(XMLSTR lpszName)
{
    if (!d) { free(lpszName); return NULL; }
    if (d->lpszName&&(lpszName!=d->lpszName)) free((void*)d->lpszName);
    d->lpszName=lpszName;
    return lpszName;
}

// private:
XMLNode::XMLNode(struct XMLNodeDataTag *p){ d=p; (p->ref_count)++; }
XMLNode::XMLNode(XMLNodeData *pParent, XMLSTR lpszName, char isDeclaration)
{
    d=(XMLNodeData*)malloc(sizeof(XMLNodeData));
    d->ref_count=1;

    d->lpszName=NULL;
    d->nChild= 0;
    d->nText = 0;
    d->nClear = 0;
    d->nAttribute = 0;

    d->isDeclaration = isDeclaration;

    d->pParent = pParent;
    d->pChild= NULL;
    d->pText= NULL;
    d->pClear= NULL;
    d->pAttribute= NULL;
    d->pOrder= NULL;

    updateName_WOSD(lpszName);
}

XMLNode XMLNode::createXMLTopNode_WOSD(XMLSTR lpszName, char isDeclaration) { return XMLNode(NULL,lpszName,isDeclaration); }
XMLNode XMLNode::createXMLTopNode(XMLCSTR lpszName, char isDeclaration) { return XMLNode(NULL,stringDup(lpszName),isDeclaration); }

#define MEMORYINCREASE 50

static inline void myFree(void *p) { if (p) free(p); }
static inline void *myRealloc(void *p, int newsize, int memInc, int sizeofElem)
{
    if (p==NULL) { if (memInc) return malloc(memInc*sizeofElem); return malloc(sizeofElem); }
    if ((memInc==0)||((newsize%memInc)==0)) p=realloc(p,(newsize+memInc)*sizeofElem);
//    if (!p)
//    {
//        printf("XMLParser Error: Not enough memory! Aborting...\n"); exit(220);
//    }
    return p;
}

// private:
XMLElementPosition XMLNode::findPosition(XMLNodeData *d, int index, XMLElementType xxtype)
{
    if (index<0) return -1;
    int i=0,j=(int)((index<<2)+xxtype),*o=d->pOrder; while (o[i]!=j) i++; return i;
}

// private:
// update "order" information when deleting a content of a XMLNode
int XMLNode::removeOrderElement(XMLNodeData *d, XMLElementType t, int index)
{
    int n=d->nChild+d->nText+d->nClear, *o=d->pOrder,i=findPosition(d,index,t);
    memmove(o+i, o+i+1, (n-i)*sizeof(int));
    for (;i<n;i++)
        if ((o[i]&3)==(int)t) o[i]-=4;
    // We should normally do:
    // d->pOrder=(int)realloc(d->pOrder,n*sizeof(int));
    // but we skip reallocation because it's too time consuming.
    // Anyway, at the end, it will be free'd completely at once.
    return i;
}

void *XMLNode::addToOrder(int memoryIncrease,int *_pos, int nc, void *p, int size, XMLElementType xtype)
{
    //  in: *_pos is the position inside d->pOrder ("-1" means "EndOf")
    // out: *_pos is the index inside p
    p=myRealloc(p,(nc+1),memoryIncrease,size);
    int n=d->nChild+d->nText+d->nClear;
    d->pOrder=(int*)myRealloc(d->pOrder,n+1,memoryIncrease*3,sizeof(int));
    int pos=*_pos,*o=d->pOrder;

    if ((pos<0)||(pos>=n)) { *_pos=nc; o[n]=(int)((nc<<2)+xtype); return p; }

    int i=pos;
    memmove(o+i+1, o+i, (n-i)*sizeof(int));

    while ((pos<n)&&((o[pos]&3)!=(int)xtype)) pos++;
    if (pos==n) { *_pos=nc; o[n]=(int)((nc<<2)+xtype); return p; }

    o[i]=o[pos];
    for (i=pos+1;i<=n;i++) if ((o[i]&3)==(int)xtype) o[i]+=4;

    *_pos=pos=o[pos]>>2;
    memmove(((char*)p)+(pos+1)*size,((char*)p)+pos*size,(nc-pos)*size);

    return p;
}

// Add a child node to the given element.
XMLNode XMLNode::addChild_priv(int memoryIncrease, XMLSTR lpszName, char isDeclaration, int pos)
{
    if (!lpszName) return emptyXMLNode;
    d->pChild=(XMLNode*)addToOrder(memoryIncrease,&pos,d->nChild,d->pChild,sizeof(XMLNode),eNodeChild);
    d->pChild[pos].d=NULL;
    d->pChild[pos]=XMLNode(d,lpszName,isDeclaration);
    d->nChild++;
    return d->pChild[pos];
}

// Add an attribute to an element.
XMLAttribute *XMLNode::addAttribute_priv(int memoryIncrease,XMLSTR lpszName, XMLSTR lpszValuev)
{
    if (!lpszName) return &emptyXMLAttribute;
    if (!d) { myFree(lpszName); myFree(lpszValuev); return &emptyXMLAttribute; }
    int nc=d->nAttribute;
    d->pAttribute=(XMLAttribute*)myRealloc(d->pAttribute,(nc+1),memoryIncrease,sizeof(XMLAttribute));
    XMLAttribute *pAttr=d->pAttribute+nc;
    pAttr->lpszName = lpszName;
    pAttr->lpszValue = lpszValuev;
    d->nAttribute++;
    return pAttr;
}

// Add text to the element.
XMLCSTR XMLNode::addText_priv(int memoryIncrease, XMLSTR lpszValue, int pos)
{
    if (!lpszValue) return NULL;
    if (!d) { myFree(lpszValue); return NULL; }
    d->pText=(XMLCSTR*)addToOrder(memoryIncrease,&pos,d->nText,d->pText,sizeof(XMLSTR),eNodeText);
    d->pText[pos]=lpszValue;
    d->nText++;
    return lpszValue;
}

// Add clear (unformatted) text to the element.
XMLClear *XMLNode::addClear_priv(int memoryIncrease, XMLSTR lpszValue, XMLCSTR lpszOpen, XMLCSTR lpszClose, int pos)
{
    if (!lpszValue) return &emptyXMLClear;
    if (!d) { myFree(lpszValue); return &emptyXMLClear; }
    d->pClear=(XMLClear *)addToOrder(memoryIncrease,&pos,d->nClear,d->pClear,sizeof(XMLClear),eNodeClear);
    XMLClear *pNewClear=d->pClear+pos;
    pNewClear->lpszValue = lpszValue;
    if (!lpszOpen) lpszOpen=XMLClearTags->lpszOpen;
    if (!lpszClose) lpszClose=XMLClearTags->lpszClose;
    pNewClear->lpszOpenTag = lpszOpen;
    pNewClear->lpszCloseTag = lpszClose;
    d->nClear++;
    return pNewClear;
}

// private:
// Parse a clear (unformatted) type node.
char XMLNode::parseClearTag(void *px, void *_pClear)
{
    XML *pXML=(XML *)px;
    ALLXMLClearTag pClear=*((ALLXMLClearTag*)_pClear);
    int cbTemp=0;
    XMLCSTR lpszTemp=NULL;
    XMLCSTR lpXML=&pXML->lpXML[pXML->nIndex];
    static XMLCSTR docTypeEnd=_CXML("]>");

    // Find the closing tag
    // Seems the <!DOCTYPE need a better treatment so lets handle it
    if (pClear.lpszOpen==XMLClearTags[1].lpszOpen)
    {
        XMLCSTR pCh=lpXML;
        while (*pCh)
        {
            if (*pCh==_CXML('<')) { pClear.lpszClose=docTypeEnd; lpszTemp=xstrstr(lpXML,docTypeEnd); break; }
            else if (*pCh==_CXML('>')) { lpszTemp=pCh; break; }
#ifdef _XMLWIDECHAR
            pCh++;
#else
            pCh+=XML_ByteTable[(unsigned char)(*pCh)];
#endif
        }
    } else lpszTemp=xstrstr(lpXML, pClear.lpszClose);

    if (lpszTemp)
    {
        // Cache the size and increment the index
        cbTemp = (int)(lpszTemp - lpXML);

        pXML->nIndex += cbTemp+(int)xstrlen(pClear.lpszClose);

        // Add the clear node to the current element
        addClear_priv(MEMORYINCREASE,stringDup(lpXML,cbTemp), pClear.lpszOpen, pClear.lpszClose,-1);
        return 0;
    }

    // If we failed to find the end tag
    pXML->error = eXMLErrorUnmatchedEndClearTag;
    return 1;
}

void XMLNode::exactMemory(XMLNodeData *d)
{
    if (d->pOrder)     d->pOrder=(int*)realloc(d->pOrder,(d->nChild+d->nText+d->nClear)*sizeof(int));
    if (d->pChild)     d->pChild=(XMLNode*)realloc(d->pChild,d->nChild*sizeof(XMLNode));
    if (d->pAttribute) d->pAttribute=(XMLAttribute*)realloc(d->pAttribute,d->nAttribute*sizeof(XMLAttribute));
    if (d->pText)      d->pText=(XMLCSTR*)realloc(d->pText,d->nText*sizeof(XMLSTR));
    if (d->pClear)     d->pClear=(XMLClear *)realloc(d->pClear,d->nClear*sizeof(XMLClear));
}

char XMLNode::maybeAddTxT(void *pa, XMLCSTR tokenPStr)
{
    XML *pXML=(XML *)pa;
    XMLCSTR lpszText=pXML->lpszText;
    if (!lpszText) return 0;
    if (dropWhiteSpace) while (XML_isSPACECHAR(*lpszText)&&(lpszText!=tokenPStr)) lpszText++;
    int cbText = (int)(tokenPStr - lpszText);
    if (!cbText) { pXML->lpszText=NULL; return 0; }
    if (dropWhiteSpace) { cbText--; while ((cbText)&&XML_isSPACECHAR(lpszText[cbText])) cbText--; cbText++; }
    if (!cbText) { pXML->lpszText=NULL; return 0; }
    XMLSTR lpt=fromXMLString(lpszText,cbText,pXML);
    if (!lpt) return 1;
    pXML->lpszText=NULL;
    if (removeCommentsInMiddleOfText && d->nText && d->nClear)
    {
        // if the previous insertion was a comment (<!-- -->) AND
        // if the previous previous insertion was a text then, delete the comment and append the text
        int n=d->nChild+d->nText+d->nClear-1,*o=d->pOrder;
        if (((o[n]&3)==eNodeClear)&&((o[n-1]&3)==eNodeText))
        {
            int i=o[n]>>2;
            if (d->pClear[i].lpszOpenTag==XMLClearTags[2].lpszOpen)
            {
                deleteClear(i);
                i=o[n-1]>>2;
                n=xstrlen(d->pText[i]);
                int n2=xstrlen(lpt)+1;
                d->pText[i]=(XMLSTR)realloc((void*)d->pText[i],(n+n2)*sizeof(XMLCHAR));
                if (!d->pText[i]) return 1;
                memcpy((void*)(d->pText[i]+n),lpt,n2*sizeof(XMLCHAR));
                free(lpt);
                return 0;
            }
        }
    }
    addText_priv(MEMORYINCREASE,lpt,-1);
    return 0;
}
// private:
// Recursively parse an XM…