/xmlParser.cpp

/**

 ****************************************************************************

 * <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     V2.41

 * @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, Business-Insight

 * <a href="http://www.Business-Insight.com">Business-Insight</a>

 * All rights reserved.

 * See the file "AFPL-license.txt" about the licensing terms

 *

 ****************************************************************************

 */

#ifndef _CRT_SECURE_NO_DEPRECATE

#define _CRT_SECURE_NO_DEPRECATE

#endif

#include "stdafx.h"

#include "xmlParser.h"

#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("v2.41"); }

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

        static inline int xstrncmp(XMLCSTR c1, XMLCSTR c2, int l) { return wcsncmp(c1,c2,l);}

            #ifdef __linux__

            // for gcc/linux

            static inline int xstrnicmp(XMLCSTR c1, XMLCSTR c2, int l) { return wcsncasecmp(c1,c2,l);}

            static inline int xstricmp(XMLCSTR c1, XMLCSTR c2) { return wcscasecmp(c1,c2); }

            #else

            #include <wctype.h>

            // for gcc/non-linux (MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8, AIX 4.3.2, HP-UX 11, IRIX 6.5, OSF/1 5.1, Cygwin, mingw)

            static inline int xstricmp(XMLCSTR c1, XMLCSTR c2)

            {

                wchar_t left,right;

                do

                {

                    left=towlower(*c1++); right=towlower(*c2++);

                } while (left&&(left==right));

                return (int)left-(int)right;

            }

            static inline int xstrnicmp(XMLCSTR c1, XMLCSTR c2, int l)

            {

                wchar_t left,right;

                while(l--)

                {

                    left=towlower(*c1++); right=towlower(*c2++);

                    if ((!left)||(left!=right)) return (int)left-(int)right;

                }

                return 0;

            }

            #endif

        #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,const 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)) 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))

            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)) 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) return eXMLErrorCannotWriteFile;

    } else

    {

        if (characterEncoding==char_encoding_UTF8)

        {

            unsigned char h[3]={0xEF,0xBB,0xBF}; if (!fwrite(h,3,1,f)) return eXMLErrorCannotWriteFile;

        }

    }

#endif

    int i;

    XMLSTR t=createXMLString(nFormat,&i);

    if (!fwrite(t,sizeof(XMLCHAR)*i,1,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)

{

    if (!source) return _CXML("");

    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 XML element.

int XMLNode::ParseXMLElement(void *pa)

{

    XML *pXML=(XML *)pa;

    int cbToken;

    enum XMLTokenTypeTag xtype;

    NextToken token;

    XMLCSTR lpszTemp=NULL;

    int cbTemp=0;

    char nDeclaration;

    XMLNode pNew;

    enum Status status; // inside or outside a tag

    enum Attrib attrib = eAttribName;



    assert(pXML);



    // If this is the first call to the function

    if (pXML->nFirst)

    {

        // Assume we are outside of a tag definition

        pXML->nFirst = FALSE;

        status = eOutsideTag;

    } else

    {

        // If this is not the first call then we should only be called when inside a tag.

        status = eInsideTag;

    }



    // Iterate through the tokens in the document

    for(;;)

    {

        // Obtain the next token

        token = GetNextToken(pXML, &cbToken, &xtype);



        if (xtype != eTokenError)

        {

            // Check the current status

            switch(status)

            {



            // If we are outside of a tag definition

            case eOutsideTag:



                // Check what type of token we obtained

                switch(xtype)

                {

                // If we have found text or quoted text

                case eTokenText:

                case eTokenCloseTag:          /* '>'         */

                case eTokenShortHandClose:    /* '/>'        */

                case eTokenQuotedText:

                case eTokenEquals:

                    break;



                // If we found a start tag '<' and declarations '<?'

                case eTokenTagStart:

                case eTokenDeclaration:



                    // Cache whether this new element is a declaration or not

                    nDeclaration = (xtype == eTokenDeclaration);



                    // If we have node text then add this to the element

                    if (maybeAddTxT(pXML,token.pStr)) return FALSE;



                    // Find the name of the tag

                    token = GetNextToken(pXML, &cbToken, &xtype);



                    // Return an error if we couldn't obtain the next token or

                    // it wasnt text

                    if (xtype != eTokenText)

                    {

                        pXML->error = eXMLErrorMissingTagName;

                        return FALSE;

                    }



                    // If we found a new element which is the same as this

                    // element then we need to pass this back to the caller..



#ifdef APPROXIMATE_PARSING

                    if (d->lpszName &&

                        myTagCompare(d->lpszName, token.pStr) == 0)

                    {

                        // Indicate to the caller that it needs to create a

                        // new element.

                        pXML->lpNewElement = token.pStr;

                        pXML->cbNewElement = cbToken;

                        return TRUE;

                    } else

#endif

                    {

                        // If the name of the new element differs from the name of

                        // the current element we need to add the new element to

                        // the current one and recurse

                        pNew = addChild_priv(MEMORYINCREASE,stringDup(token.pStr,cbToken), nDeclaration,-1);



                        while (!pNew.isEmpty())

                        {

                            // Callself to process the new node.  If we return

                            // FALSE this means we dont have any more

                            // processing to do...



                            if (!pNew.ParseXMLElement(pXML)) return FALSE;

                            else

                            {

                                // If the call to recurse this function

                                // evented in a end tag specified in XML then

                                // we need to unwind the calls to this

                                // function until we find the appropriate node

                                // (the element name and end tag name must

                                // match)

                                if (pXML->cbEndTag)

                                {

                                    // If we are back at the root node then we

                                    // have an unmatched end tag

                                    if (!d->lpszName)

                                    {

                                        pXML->error=eXMLErrorUnmatchedEndTag;

                                        return FALSE;

                                    }



                                    // If the end tag matches the name of this

                                    // element then we only need to unwind

                                    // once more...



                                    if (myTagCompare(d->lpszName, pXML->lpEndTag)==0)

                                    {

                                        pXML->cbEndTag = 0;

                                    }



                                    return TRUE;

                                } else

                                    if (pXML->cbNewElement)

                                    {

                                        // If the call indicated a new element is to

                                        // be created on THIS element.



                                        // If the name of this element matches the

                                        // name of the element we need to create

                                        // then we need to return to the caller

                                        // and let it process the element.



                                        if (myTagCompare(d->lpszName, pXML->lpNewElement)==0)

                                        {

                                            return TRUE;

                                        }



                                        // Add the new element and recurse

                                        pNew = addChild_priv(MEMORYINCREASE,stringDup(pXML->lpNewElement,pXML->cbNewElement),0,-1);

                                        pXML->cbNewElement = 0;

                                    }

                                    else

                                    {

                                        // If we didn't have a new element to create

                                        pNew = emptyXMLNode;



                                    }

                            }

                        }

                    }

                    break;



                // If we found an end tag

                case eTokenTagEnd:



                    // If we have node text then add this to the element

                    if (maybeAddTxT(pXML,token.pStr)) return FALSE;



                    // Find the name of the end tag

                    token = GetNextToken(pXML, &cbTemp, &xtype);



                    // The end tag should be text

                    if (xtype != eTokenText)

                    {

                        pXML->error = eXMLErrorMissingEndTagName;

                        return FALSE;

                    }

                    lpszTemp = token.pStr;



                    // After the end tag we should find a closing tag

                    token = GetNextToken(pXML, &cbToken, &xtype);

                    if (xtype != eTokenCloseTag)

                    {

                        pXML->error = eXMLErrorMissingEndTagName;

                        return FALSE;

                    }

                    pXML->lpszText=pXML->lpXML+pXML->nIndex;



                    // We need to return to the previous caller.  If the name

                    // of the tag cannot be found we need to keep returning to

                    // caller until we find a match

                    if (myTagCompare(d->lpszName, lpszTemp) != 0)

#ifdef STRICT_PARSING

                    {

                        pXML->error=eXMLErrorUnmatchedEndTag;

                        pXML->nIndexMissigEndTag=pXML->nIndex;

                        return FALSE;

                    }

#else

                    {

                        pXML->error=eXMLErrorMissingEndTag;

                        pXML->nIndexMissigEndTag=pXML->nIndex;

                        pXML->lpEndTag = lpszTemp;

                        pXML->cbEndTag = cbTemp;

                    }

#endif



                    // Return to the caller

                    exactMemory(d);

                    return TRUE;



                // If we found a clear (unformatted) token

                case eTokenClear:

                    // If we have node text then add this to the element

                    if (maybeAddTxT(pXML,token.pStr)) return FALSE;

                    if (parseClearTag(pXML, token.pClr)) return FALSE;

                    pXML->lpszText=pXML->lpXML+pXML->nIndex;

                    break;



                default:

                    break;

                }

                break;



            // If we are inside a tag definition we need to search for attributes

            case eInsideTag:



                // Check what part of the attribute (name, equals, value) we

                // are looking for.

                switch(attrib)

                {

                // If we are looking for a new attribute

                case eAttribName:



                    // Check what the current token type is

                    switch(xtype)

                    {

                    // If the current type is text...

                    // Eg.  'attribute'

                    case eTokenText:

                        // Cache the token then indicate that we are next to

                        // look for the equals

                        lpszTemp = token.pStr;

                        cbTemp = cbToken;

                        attrib = eAttribEquals;

                        break;



                    // If we found a closing tag...

                    // Eg.  '>'

                    case eTokenCloseTag:

                        // We are now outside the tag

                        status = eOutsideTag;

                        pXML->lpszText=pXML->lpXML+pXML->nIndex;

                        break;



                    // If we found a short hand '/>' closing tag then we can

                    // return to the caller

                    case eTokenShortHandClose:

                        exactMemory(d);

                        pXML->lpszText=pXML->lpXML+pXML->nIndex;

                        return TRUE;



                    // Errors...

                    case eTokenQuotedText:    /* '"SomeText"'   */

                    case eTokenTagStart:      /* '<'            */

                    case eTokenTagEnd:        /* '</'           */

                    case eTokenEquals:        /* '='            */

                    case eTokenDeclaration:   /* '<?'           */

                    case eTokenClear:

                        pXML->error = eXMLErrorUnexpectedToken;

                        return FALSE;

                    default: break;

                    }

                    break;



                // If we are looking for an equals

                case eAttribEquals:

                    // Check what the current token type is

                    switch(xtype)

                    {

                    // If the current type is text...

                    // Eg.  'Attribute AnotherAttribute'

                    case eTokenText:

                        // Add the unvalued attribute to the list

                        addAttribute_priv(MEMORYINCREASE,stringDup(lpszTemp,cbTemp), NULL);

                        // Cache the token then indicate.  We are next to

                        // look for the equals attribute

                        lpszTemp = token.pStr;

                        cbTemp = cbToken;

                        break;



                    // If we found a closing tag 'Attribute >' or a short hand

                    // closing tag 'Attribute />'

                    case eTokenShortHandClose:

                    case eTokenCloseTag:

                        // If we are a declaration element '<?' then we need

                        // to remove extra closing '?' if it exists

                        pXML->lpszText=pXML->lpXML+pXML->nIndex;



                        if (d->isDeclaration &&

                            (lpszTemp[cbTemp-1]) == _CXML('?'))

                        {

                            cbTemp--;

                            if (d->pParent && d->pParent->pParent) xtype = eTokenShortHandClose;

                        }



                        if (cbTemp)

                        {

                            // Add the unvalued attribute to the list

                            addAttribute_priv(MEMORYINCREASE,stringDup(lpszTemp,cbTemp), NULL);

                        }



                        // If this is the end of the tag then return to the caller

                        if (xtype == eTokenShortHandClose)

                        {

                            exactMemory(d);

                            return TRUE;

                        }



                        // We are now outside the tag

                        status = eOutsideTag;

                        break;



                    // If we found the equals token...

                    // Eg.  'Attribute ='

                    case eTokenEquals:

                        // Indicate that we next need to search for the value

                        // for the attribute

                        attrib = eAttribValue;

                        break;



                    // Errors...

                    case eTokenQuotedText:    /* 'Attribute "InvalidAttr"'*/

                    case eTokenTagStart:      /* 'Attribute <'            */

                    case eTokenTagEnd:        /* 'Attribute </'           */

                    case eTokenDeclaration:   /* 'Attribute <?'           */

                    case eTokenClear:

                        pXML->error = eXMLErrorUnexpectedToken;

                        return FALSE;

                    default: break;

                    }

                    break;



                // If we are looking for an attribute value

                case eAttribValue:

                    // Check what the current token type is

                    switch(xtype)

                    {

                    // If the current type is text or quoted text...

                    // Eg.  'Attribute = "Value"' or 'Attribute = Value' or

                    // 'Attribute = 'Value''.

                    case eTokenText:

                    case eTokenQuotedText:

                        // If we are a declaration element '<?' then we need

                        // to remove extra closing '?' if it exists

                        if (d->isDeclaration &&

                            (token.pStr[cbToken-1]) == _CXML('?'))

                        {

                            cbToken--;

                        }



                        if (cbTemp)

                        {

                            // Add the valued attribute to the list

                            if (xtype==eTokenQuotedText) { token.pStr++; cbToken-=2; }

                            XMLSTR attrVal=(XMLSTR)token.pStr;

                            if (attrVal)

                            {

                                attrVal=fromXMLString(attrVal,cbToken,pXML);

                                if (!attrVal) return FALSE;

                            }

                            addAttribute_priv(MEMORYINCREASE,stringDup(lpszTemp,cbTemp),attrVal);

                        }



                        // Indicate we are searching for a new attribute

                        attrib = eAttribName;

                        break;



                    // Errors...

                    case eTokenTagStart:        /* 'Attr = <'          */

                    case eTokenTagEnd:          /* 'Attr = </'         */

                    case eTokenCloseTag:        /* 'Attr = >'          */

                    case eTokenShortHandClose:  /* "Attr = />"         */

                    case eTokenEquals:          /* 'Attr = ='          */

                    case eTokenDeclaration:     /* 'Attr = <?'         */

                    case eTokenClear:

                        pXML->error = eXMLErrorUnexpectedToken;

                        return FALSE;

                        break;

                    default: break;

                    }

                }

            }

        }

        // If we failed to obtain the next token

        else

        {

            if ((!d->isDeclaration)&&(d->pParent))

            {

#ifdef STRICT_PARSING

                pXML->error=eXMLErrorUnmatchedEndTag;

#else

                pXML->error=eXMLErrorMissingEndTag;

#endif

                pXML->nIndexMissigEndTag=pXML->nIndex;

            }

            maybeAddTxT(pXML,pXML->lpXML+pXML->nIndex);

            return FALSE;

        }

    }

}



// Count the number of lines and columns in an XML string.

static void CountLinesAndColumns(XMLCSTR lpXML, int nUpto, XMLResults *pResults)

{

    XMLCHAR ch;

    assert(lpXML);

    assert(pResults);



    struct XML xml={ lpXML,lpXML, 0, 0, eXMLErrorNone, NULL, 0, NULL, 0, TRUE };



    pResults->nLine = 1;

    pResults->nColumn = 1;

    while (xml.nIndex<nUpto)

    {

        ch = getNextChar(&xml);

        if (ch != _CXML('\n')) pResults->nColumn++;

        else

        {

            pResults->nLine++;

            pResults->nColumn=1;

        }

    }

}



// Parse XML and return the root element.

XMLNode XMLNode::parseString(XMLCSTR lpszXML, XMLCSTR tag, XMLResults *pResults)

{

    if (!lpszXML)

    {

        if (pResults)

        {

            pResults->error=eXMLErrorNoElements;

            pResults->nLine=0;

            pResults->nColumn=0;

        }

        return emptyXMLNode;

    }



    XMLNode xnode(NULL,NULL,FALSE);

    struct XML xml={ lpszXML, lpszXML, 0, 0, eXMLErrorNone, NULL, 0, NULL, 0, TRUE };



    // Create header element

    xnode.ParseXMLElement(&xml);

    enum XMLError error = xml.error;

    if (!xnode.nChildNode()) error=eXMLErrorNoXMLTagFound;

    if ((xnode.nChildNode()==1)&&(xnode.nElement()==1)) xnode=xnode.getChildNode(); // skip the empty node



    // If no error occurred

    if ((error==eXMLErrorNone)||(error==eXMLErrorMissingEndTag)||(error==eXMLErrorNoXMLTagFound))

    {

        XMLCSTR name=xnode.getName();

        if (tag&&(*tag)&&((!name)||(xstricmp(name,tag))))

        {

            xnode=xnode.getChildNode(tag);

            if (xnode.isEmpty())

            {

                if (pResults)

                {

                    pResults->error=eXMLErrorFirstTagNotFound;

                    pResults->nLine=0;

                    pResults->nColumn=0;

                }

                return emptyXMLNode;

            }

        }

    } else

    {

        // Cleanup: this will destroy all the nodes

        xnode = emptyXMLNode;

    }





    // If we have been given somewhere to place results

    if (pResults)

    {

        pResults->error = error;



        // If we have an error

        if (error!=eXMLErrorNone)

        {

            if (error==eXMLErrorMissingEndTag) xml.nIndex=xml.nIndexMissigEndTag;

            // Find which line and column it starts on.

            CountLinesAndColumns(xml.lpXML, xml.nIndex, pResults);

        }

    }

    return xnode;

}



XMLNode XMLNode::parseFile(XMLCSTR filename, XMLCSTR tag, XMLResults *pResults)

{

    if (pResults) { pResults->nLine=0; pResults->nColumn=0; }

    FILE *f=xfopen(filename,_CXML("rb"));

    if (f==NULL) { if (pResults) pResults->error=eXMLErrorFileNotFound; return emptyXMLNode; }

    fseek(f,0,SEEK_END);

    int l=(int)ftell(f),headerSz=0;

    if (!l) { if (pResults) pResults->error=eXMLErrorEmpty; fclose(f); return emptyXMLNode; }

    fseek(f,0,SEEK_SET);

    unsigned char *buf=(unsigned char*)malloc(l+4);

    l=(int)fread(buf,1,l,f);

    fclose(f);

    buf[l]=0;buf[l+1]=0;buf[l+2]=0;buf[l+3]=0;

#ifdef _XMLWIDECHAR

    if (guessWideCharChars)

    {

        if (!myIsTextWideChar(buf,l))

        {

            XMLNode::XMLCharEncoding ce=XMLNode::char_encoding_legacy;

            if ((buf[0]==0xef)&&(buf[1]==0xbb)&&(buf[2]==0xbf)) { headerSz=3; ce=XMLNode::char_encoding_UTF8; }

            XMLSTR b2=myMultiByteToWideChar((const char*)(buf+headerSz),ce);

            free(buf); buf=(unsigned char*)b2; headerSz=0;

        } else

        {

            if ((buf[0]==0xef)&&(buf[1]==0xff)) headerSz=2;

            if ((buf[0]==0xff)&&(buf[1]==0xfe)) headerSz=2;

        }

    }

#else

    if (guessWideCharChars)

    {

        if (myIsTextWideChar(buf,l))

        {

            if ((buf[0]==0xef)&&(buf[1]==0xff)) headerSz=2;

            if ((buf[0]==0xff)&&(buf[1]==0xfe)) headerSz=2;

            char *b2=myWideCharToMultiByte((const wchar_t*)(buf+headerSz));

            free(buf); buf=(unsigned char*)b2; headerSz=0;

        } else

        {

            if ((buf[0]==0xef)&&(buf[1]==0xbb)&&(buf[2]==0xbf)) headerSz=3;

        }

    }

#endif



    if (!buf) { if (pResults) pResults->error=eXMLErrorCharConversionError; return emptyXMLNode; }

    XMLNode x=parseString((XMLSTR)(buf+headerSz),tag,pResults);

    free(buf);

    return x;

}



static inline void charmemset(XMLSTR dest,XMLCHAR c,int l) { while (l--) *(dest++)=c; }

// private:

// Creates an user friendly XML string from a given element with

// appropriate white space and carriage returns.

//

// This recurses through all subnodes then adds contents of the nodes to the

// string.

int XMLNode::CreateXMLStringR(XMLNodeData *pEntry, XMLSTR lpszMarker, int nFormat)

{

    int nResult = 0;

    int cb=nFormat<0?0:nFormat;

    int cbElement;

    int nChildFormat=-1;

    int nElementI=pEntry->nChild+pEntry->nText+pEntry->nClear;

    int i,j;

    if ((nFormat>=0)&&(nElementI==1)&&(pEntry->nText==1)&&(!pEntry->isDeclaration)) nFormat=-2;



    assert(pEntry);



#define LENSTR(lpsz) (lpsz ? xstrlen(lpsz) : 0)



    // If the element has no name then assume this is the head node.

    cbElement = (int)LENSTR(pEntry->lpszName);



    if (cbElement)

    {

        // "<elementname "

        if (lpszMarker)

        {

            if (cb) charmemset(lpszMarker, INDENTCHAR, cb);

            nResult = cb;

            lpszMarker[nResult++]=_CXML('<');

            if (pEntry->isDeclaration) lpszMarker[nResult++]=_CXML('?');

            xstrcpy(&lpszMarker[nResult], pEntry->lpszName);

            nResult+=cbElement;

            lpszMarker[nResult++]=_CXML(' ');



        } else

        {

            nResult+=cbElement+2+cb;

            if (pEntry->isDeclaration) nResult++;

        }



        // Enumerate attributes and add them to the string

        XMLAttribute *pAttr=pEntry->pAttribute;

        for (i=0; i<pEntry->nAttribute; i++)

        {

            // "Attrib

            cb = (int)LENSTR(pAttr->lpszName);

            if (cb)

            {

                if (lpszMarker) xstrcpy(&lpszMarker[nResult], pAttr->lpszName);

                nResult += cb;

                // "Attrib=Value "

                if (pAttr->lpszValue)

                {

                    cb=(int)ToXMLStringTool::lengthXMLString(pAttr->lpszValue);

                    if (lpszMarker)

                    {

                        lpszMarker[nResult]=_CXML('=');

                        lpszMarker[nResult+1]=_CXML('"');

                        if (cb) ToXMLStringTool::toXMLUnSafe(&lpszMarker[nResult+2],pAttr->lpszValue);

                        lpszMarker[nResult+cb+2]=_CXML('"');

                    }

                    nResult+=cb+3;

                }

                if (lpszMarker) lpszMarker[nResult] = _CXML(' ');

                nResult++;

            }

            pAttr++;

        }



        if (pEntry->isDeclaration)

        {

            if (lpszMarker)

            {

                lpszMarker[nResult-1]=_CXML('?');

                lpszMarker[nResult]=_CXML('>');

            }

            nResult++;

            if (nFormat!=-1)

            {

                if (lpszMarker) lpszMarker[nResult]=_CXML('\n');

                nResult++;

            }

        } else

            // If there are child nodes we need to terminate the start tag

            if (nElementI)

            {

                if (lpszMarker) lpszMarker[nResult-1]=_CXML('>');

                if (nFormat>=0)

                {

                    if (lpszMarker) lpszMarker[nResult]=_CXML('\n');

                    nResult++;

                }

            } else nResult--;

    }



    // Calculate the child format for when we recurse.  This is used to

    // determine the number of spaces used for prefixes.

    if (nFormat!=-1)

    {

        if (cbElement&&(!pEntry->isDeclaration)) nChildFormat=nFormat+1;

        else nChildFormat=nFormat;

    }



    // Enumerate through remaining children

    for (i=0; i<nElementI; i++)

    {

        j=pEntry->pOrder[i];

        switch((XMLElementType)(j&3))

        {

        // Text nodes

        case eNodeText:

            {

                // "Text"

                XMLCSTR pChild=pEntry->pText[j>>2];

                cb = (int)ToXMLStringTool::lengthXMLString(pChild);

                if (cb)

                {

                    if (nFormat>=0)

                    {

                        if (lpszMarker)

                        {

                            charmemset(&lpszMarker[nResult],INDENTCHAR,nFormat+1);

                            ToXMLStringTool::toXMLUnSafe(&lpszMarker[nResult+nFormat+1],pChild);

                            lpszMarker[nResult+nFormat+1+cb]=_CXML('\n');

                        }

                        nResult+=cb+nFormat+2;

                    } else

                    {

                        if (lpszMarker) ToXMLStringTool::toXMLUnSafe(&lpszMarker[nResult], pChild);

                        nResult += cb;

                    }

                }

                break;

            }



        // Clear type nodes

        case eNodeClear:

            {

                XMLClear *pChild=pEntry->pClear+(j>>2);

                // "OpenTag"

                cb = (int)LENSTR(pChild->lpszOpenTag);

                if (cb)

                {

                    if (nFormat!=-1)

                    {

                        if (lpszMarker)

                        {

                            charmemset(&lpszMarker[nResult], INDENTCHAR, nFormat+1);

                            xstrcpy(&lpszMarker[nResult+nFormat+1], pChild->lpszOpenTag);

                        }

                        nResult+=cb+nFormat+1;

                    }

                    else

                    {

                        if (lpszMarker)xstrcpy(&lpszMarker[nResult], pChild->lpszOpenTag);

                        nResult += cb;

                    }

                }



                // "OpenTag Value"

                cb = (int)LENSTR(pChild->lpszValue);

                if (cb)

                {

                    if (lpszMarker) xstrcpy(&lpszMarker[nResult], pChild->lpszValue);

                    nResult += cb;

                }



                // "OpenTag Value CloseTag"

                cb = (int)LENSTR(pChild->lpszCloseTag);

                if (cb)

                {

                    if (lpszMarker) xstrcpy(&lpszMarker[nResult], pChild->lpszCloseTag);

                    nResult += cb;

                }



                if (nFormat!=-1)

                {

                    if (lpszMarker) lpszMarker[nResult] = _CXML('\n');

                    nResult++;

                }

                break;

            }



        // Element nodes

        case eNodeChild:

            {

                // Recursively add child nodes

                nResult += CreateXMLStringR(pEntry->pChild[j>>2].d, lpszMarker ? lpszMarker + nResult : 0, nChildFormat);

                break;

            }

        default: break;

        }

    }



    if ((cbElement)&&(!pEntry->isDeclaration))

    {

        // If we have child entries we need to use long XML notation for

        // closing the element - "<elementname>blah blah blah</elementname>"

        if (nElementI)

        {

            // "</elementname>\0"

            if (lpszMarker)

            {

                if (nFormat >=0)

                {

                    charmemset(&lpszMarker[nResult], INDENTCHAR,nFormat);

                    nResult+=nFormat;

                }



                lpszMarker[nResult]=_CXML('<'); lpszMarker[nResult+1]=_CXML('/');

                nResult += 2;

                xstrcpy(&lpszMarker[nResult], pEntry->lpszName);

                nResult += cbElement;



                lpszMarker[nResult]=_CXML('>');

                if (nFormat == -1) nResult++;

                else

                {

                    lpszMarker[nResult+1]=_CXML('\n');

                    nResult+=2;

                }

            } else

            {

                if (nFormat>=0) nResult+=cbElement+4+nFormat;

                else if (nFormat==-1) nResult+=cbElement+3;

                else nResult+=cbElement+4;

            }

        } else

        {

            // If there are no children we can use shorthand XML notation -

            // "<elementname/>"

            // "/>\0"

            if (lpszMarker)

            {

                lpszMarker[nResult]=_CXML('/'); lpszMarker[nResult+1]=_CXML('>');

                if (nFormat != -1) lpszMarker[nResult+2]=_CXML('\n');

            }

            nResult += nFormat == -1 ? 2 : 3;

        }

    }



    return nResult;

}



#undef LENSTR



// Create an XML string

// @param       int nFormat             - 0 if no formatting is required

//                                        otherwise nonzero for formatted text

//                                        with carriage returns and indentation.

// @param       int *pnSize             - [out] pointer to the size of the

//                                        returned string not including the

//                                        NULL terminator.

// @return      XMLSTR                  - Allocated XML string, you must free

//                                        this with free().

XMLSTR XMLNode::createXMLString(int nFormat, int *pnSize) const

{

    if (!d) { if (pnSize) *pnSize=0; return NULL; }



    XMLSTR lpszResult = NULL;

    int cbStr;



    // Recursively Calculate the size of the XML string

    if (!dropWhiteSpace) nFormat=0;

    nFormat = nFormat ? 0 : -1;

    cbStr = CreateXMLStringR(d, 0, nFormat);

    // Alllocate memory for the XML string + the NULL terminator and

    // create the recursively XML string.

    lpszResult=(XMLSTR)malloc((cbStr+1)*sizeof(XMLCHAR));

    CreateXMLStringR(d, lpszResult, nFormat);

    lpszResult[cbStr]=_CXML('\0');

    if (pnSize) *pnSize = cbStr;

    return lpszResult;

}



int XMLNode::detachFromParent(XMLNodeData *d)

{

    XMLNode *pa=d->pParent->pChild;

    int i=0;

    while (((void*)(pa[i].d))!=((void*)d)) i++;

    d->pParent->nChild--;

    if (d->pParent->nChild) memmove(pa+i,pa+i+1,(d->pParent->nChild-i)*sizeof(XMLNode));

    else { free(pa); d->pParent->pChild=NULL; }

    return removeOrderElement(d->pParent,eNodeChild,i);

}



XMLNode::~XMLNode()

{

    if (!d) return;

    d->ref_count--;

    emptyTheNode(0);

}

void XMLNode::deleteNodeContent()

{

    if (!d) return;

    if (d->pParent) { detachFromParent(d); d->pParent=NULL; d->ref_count--; }

    emptyTheNode(1);

}

void XMLNode::emptyTheNode(char force)

{

    XMLNodeData *dd=d; // warning: must stay this way!

    if ((dd->ref_count==0)||force)

    {

        if (d->pParent) detachFromParent(d);

        int i;

        XMLNode *pc;

        for(i=0; i<dd->nChild; i++)

        {

            pc=dd->pChild+i;

            pc->d->pParent=NULL;

            pc->d->ref_count--;

            pc->emptyTheNode(force);

        }

        myFree(dd->pChild);

        for(i=0; i<dd->nText; i++) free((void*)dd->pText[i]);

        myFree(dd->pText);

        for(i=0; i<dd->nClear; i++) free((void*)dd->pClear[i].lpszValue);

        myFree(dd->pClear);

        for(i=0; i<dd->nAttribute; i++)

        {

            free((void*)dd->pAttribute[i].lpszName);

            if (dd->pAttribute[i].lpszValue) free((void*)dd->pAttribute[i].lpszValue);

        }

        myFree(dd->pAttribute);

        myFree(dd->pOrder);

        myFree((void*)dd->lpszName);

        dd->nChild=0;    dd->nText=0;    dd->nClear=0;    dd->nAttribute=0;

        dd->pChild=NULL; dd->pText=NULL; dd->pClear=NULL; dd->pAttribute=NULL;

        dd->pOrder=NULL; dd->lpszName=NULL; dd->pParent=NULL;

    }

    if (dd->ref_count==0)

    {

        free(dd);

        d=NULL;

    }

}



XMLNode& XMLNode::operator=( const XMLNode& A )

{

    // shallow copy

    if (this != &A)

    {

        if (d) { d->ref_count--; emptyTheNode(0); }

        d=A.d;

        if (d) (d->ref_count) ++ ;

    }

    return *this;

}



XMLNode::XMLNode(const XMLNode &A)

{

    // shallow copy

    d=A.d;

    if (d) (d->ref_count)++ ;

}



XMLNode XMLNode::deepCopy() const

{

    if (!d) return XMLNode::emptyXMLNode;

    XMLNode x(NULL,stringDup(d->lpszName),d->isDeclaration);

    XMLNodeData *p=x.d;

    int n=d->nAttribute;

    if (n)

    {

        p->nAttribute=n; p->pAttribute=(XMLAttribute*)malloc(n*sizeof(XMLAttribute));

        while (n--)

        {

            p->pAttribute[n].lpszName=stringDup(d->pAttribute[n].lpszName);

            p->pAttribute[n].lpszValue=stringDup(d->pAttribute[n].lpszValue);

        }

    }

    if (d->pOrder)

    {

        n=(d->nChild+d->nText+d->nClear)*sizeof(int); p->pOrder=(int*)malloc(n); memcpy(p->pOrder,d->pOrder,n);

    }

    n=d->nText;

    if (n)

    {

        p->nText=n; p->pText=(XMLCSTR*)malloc(n*sizeof(XMLCSTR));

        while(n--) p->pText[n]=stringDup(d->pText[n]);

    }

    n=d->nClear;

    if (n)

    {

        p->nClear=n; p->pClear=(XMLClear*)malloc(n*sizeof(XMLClear));

        while (n--)

        {

            p->pClear[n].lpszCloseTag=d->pClear[n].lpszCloseTag;

            p->pClear[n].lpszOpenTag=d->pClear[n].lpszOpenTag;

            p->pClear[n].lpszValue=stringDup(d->pClear[n].lpszValue);

        }

    }

    n=d->nChild;

    if (n)

    {

        p->nChild=n; p->pChild=(XMLNode*)malloc(n*sizeof(XMLNode));

        while (n--)

        {

            p->pChild[n].d=NULL;

            p->pChild[n]=d->pChild[n].deepCopy();

            p->pChild[n].d->pParent=p;

        }

    }

    return x;

}



XMLNode XMLNode::addChild(XMLNode childNode, int pos)

{

    XMLNodeData *dc=childNode.d;

    if ((!dc)||(!d)) return childNode;

    if (!dc->lpszName)

    {

        // this is a root node: todo: correct fix

        int j=pos;

        while (dc->nChild)

        {

            addChild(dc->pChild[0],j);

            if (pos>=0) j++;

        }

        return childNode;

    }

    if (dc->pParent) { if ((detachFromParent(dc)<=pos)&&(dc->pParent==d)) pos--; } else dc->ref_count++;

    dc->pParent=d;

//     int nc=d->nChild;

//     d->pChild=(XMLNode*)myRealloc(d->pChild,(nc+1),memoryIncrease,sizeof(XMLNode));

    d->pChild=(XMLNode*)addToOrder(0,&pos,d->nChild,d->pChild,sizeof(XMLNode),eNodeChild);

    d->pChild[pos].d=dc;

    d->nChild++;

    return childNode;

}



void XMLNode::deleteAttribute(int i)

{

    if ((!d)||(i<0)||(i>=d->nAttribute)) return;

    d->nAttribute--;

    XMLAttribute *p=d->pAttribute+i;

    free((void*)p->lpszName);

    if (p->lpszValue) free((void*)p->lpszValue);

    if (d->nAttribute) memmove(p,p+1,(d->nAttribute-i)*sizeof(XMLAttribute)); else { free(p); d->pAttribute=NULL; }

}



void XMLNode::deleteAttribute(XMLAttribute *a){ if (a) deleteAttribute(a->lpszName); }

void XMLNode::deleteAttribute(XMLCSTR lpszName)

{

    int j=0;

    getAttribute(lpszName,&j);

    if (j) deleteAttribute(j-1);

}



XMLAttribute *XMLNode::updateAttribute_WOSD(XMLSTR lpszNewValue, XMLSTR lpszNewName,int i)

{

    if (!d) { if (lpszNewValue) free(lpszNewValue); if (lpszNewName) free(lpszNewName); return NULL; }

    if (i>=d->nAttribute)

    {

        if (lpszNewName) return addAttribute_WOSD(lpszNewName,lpszNewValue);

        return NULL;

    }

    XMLAttribute *p=d->pAttribute+i;

    if (p->lpszValue&&p->lpszValue!=lpszNewValue) free((void*)p->lpszValue);

    p->lpszValue=lpszNewValue;

    if (lpszNewName&&p->lpszName!=lpszNewName) { free((void*)p->lpszName); p->lpszName=lpszNewName; };

    return p;

}



XMLAttribute *XMLNode::updateAttribute_WOSD(XMLAttribute *newAttribute, XMLAttribute *oldAttribute)

{

    if (oldAttribute) return updateAttribute_WOSD((XMLSTR)newAttribute->lpszValue,(XMLSTR)newAttribute->lpszName,oldAttribute->lpszName);

    return addAttribute_WOSD((XMLSTR)newAttribute->lpszName,(XMLSTR)newAttribute->lpszValue);

}



XMLAttribute *XMLNode::updateAttribute_WOSD(XMLSTR lpszNewValue, XMLSTR lpszNewName,XMLCSTR lpszOldName)

{

    int j=0;

    getAttribute(lpszOldName,&j);

    if (j) return updateAttribute_WOSD(lpszNewValue,lpszNewName,j-1);

    else

    {

        if (lpszNewName) return addAttribute_WOSD(lpszNewName,lpszNewValue);

        else             return addAttribute_WOSD(stringDup(lpszOldName),lpszNewValue);

    }

}



int XMLNode::indexText(XMLCSTR lpszValue) const

{

    if (!d) return -1;

    int i,l=d->nText;

    if (!lpszValue) { if (l) return 0; return -1; }

    XMLCSTR *p=d->pText;

    for (i=0; i<l; i++) if (lpszValue==p[i]) return i;

    return -1;

}



void XMLNode::deleteText(int i)

{

    if ((!d)||(i<0)||(i>=d->nText)) return;

    d->nText--;

    XMLCSTR *p=d->pText+i;

    free((void*)*p);

    if (d->nText) memmove(p,p+1,(d->nText-i)*sizeof(XMLCSTR)); else { free(p); d->pText=NULL; }

    removeOrderElement(d,eNodeText,i);

}



void XMLNode::deleteText(XMLCSTR lpszValue) { deleteText(indexText(lpszValue)); }



XMLCSTR XMLNode::updateText_WOSD(XMLSTR lpszNewValue, int i)

{

    if (!d) { if (lpszNewValue) free(lpszNewValue); return NULL; }

    if (i>=d->nText) return addText_WOSD(lpszNewValue);

    XMLCSTR *p=d->pText+i;

    if (*p!=lpszNewValue) { free((void*)*p); *p=lpszNewValue; }

    return lpszNewValue;

}



XMLCSTR XMLNode::updateText_WOSD(XMLSTR lpszNewValue, XMLCSTR lpszOldValue)

{

    if (!d) { if (lpszNewValue) free(lpszNewValue); return NULL; }

    int i=indexText(lpszOldValue);

    if (i>=0) return updateText_WOSD(lpszNewValue,i);

    return addText_WOSD(lpszNewValue);

}



void XMLNode::deleteClear(int i)

{

    if ((!d)||(i<0)||(i>=d->nClear)) return;

    d->nClear--;

    XMLClear *p=d->pClear+i;

    free((void*)p->lpszValue);

    if (d->nClear) memmove(p,p+1,(d->nClear-i)*sizeof(XMLClear)); else { free(p); d->pClear=NULL; }

    removeOrderElement(d,eNodeClear,i);

}



int XMLNode::indexClear(XMLCSTR lpszValue) const

{

    if (!d) return -1;

    int i,l=d->nClear;

    if (!lpszValue) { if (l) return 0; return -1; }

    XMLClear *p=d->pClear;

    for (i=0; i<l; i++) if (lpszValue==p[i].lpszValue) return i;

    return -1;

}



void XMLNode::deleteClear(XMLCSTR lpszValue) { deleteClear(indexClear(lpszValue)); }

void XMLNode::deleteClear(XMLClear *a) { if (a) deleteClear(a->lpszValue); }



XMLClear *XMLNode::updateClear_WOSD(XMLSTR lpszNewContent, int i)

{

    if (!d) { if (lpszNewContent) free(lpszNewContent); return NULL; }

    if (i>=d->nClear) return addClear_WOSD(lpszNewContent);

    XMLClear *p=d->pClear+i;

    if (lpszNewContent!=p->lpszValue) { free((void*)p->lpszValue); p->lpszValue=lpszNewContent; }

    return p;

}



XMLClear *XMLNode::updateClear_WOSD(XMLSTR lpszNewContent, XMLCSTR lpszOldValue)

{

    if (!d) { if (lpszNewContent) free(lpszNewContent); return NULL; }

    int i=indexClear(lpszOldValue);

    if (i>=0) return updateClear_WOSD(lpszNewContent,i);

    return addClear_WOSD(lpszNewContent);

}



XMLClear *XMLNode::updateClear_WOSD(XMLClear *newP,XMLClear *oldP)

{

    if (oldP) return updateClear_WOSD((XMLSTR)newP->lpszValue,(XMLSTR)oldP->lpszValue);

    return NULL;

}



int XMLNode::nChildNode(XMLCSTR name) const

{

    if (!d) return 0;

    int i,j=0,n=d->nChild;

    XMLNode *pc=d->pChild;

    for (i=0; i<n; i++)

    {

        if (xstricmp(pc->d->lpszName, name)==0) j++;

        pc++;

    }

    return j;

}



XMLNode XMLNode::getChildNode(XMLCSTR name, int *j) const

{

    if (!d) return emptyXMLNode;

    int i=0,n=d->nChild;

    if (j) i=*j;

    XMLNode *pc=d->pChild+i;

    for (; i<n; i++)

    {

        if (!xstricmp(pc->d->lpszName, name))

        {

            if (j) *j=i+1;

            return *pc;

        }

        pc++;

    }

    return emptyXMLNode;

}



XMLNode XMLNode::getChildNode(XMLCSTR name, int j) const

{

    if (!d) return emptyXMLNode;

    if (j>=0)

    {

        int i=0;

        while (j-->0) getChildNode(name,&i);

        return getChildNode(name,&i);

    }

    int i=d->nChild;

    while (i--) if (!xstricmp(name,d->pChild[i].d->lpszName)) break;

    if (i<0) return emptyXMLNode;

    return getChildNode(i);

}



XMLNode XMLNode::getChildNodeByPath(XMLCSTR _path, char createMissing, XMLCHAR sep)

{

    XMLSTR path=stringDup(_path);

    XMLNode x=getChildNodeByPathNonConst(path,createMissing,sep);

    if (path) free(path);

    return x;

}



XMLNode XMLNode::getChildNodeByPathNonConst(XMLSTR path, char createIfMissing, XMLCHAR sep)

{

    if ((!path)||(!(*path))) return *this;

    XMLNode xn,xbase=*this;

    XMLCHAR *tend1,sepString[2]; sepString[0]=sep; sepString[1]=0;

    tend1=xstrstr(path,sepString);

    while(tend1)

    {

        *tend1=0;

        xn=xbase.getChildNode(path);

        if (xn.isEmpty())

        {

            if (createIfMissing) xn=xbase.addChild(path);

            else { *tend1=sep; return XMLNode::emptyXMLNode; }

        }

        *tend1=sep;

        xbase=xn;

        path=tend1+1;

        tend1=xstrstr(path,sepString);

    }

    xn=xbase.getChildNode(path);

    if (xn.isEmpty()&&createIfMissing) xn=xbase.addChild(path);

    return xn;

}



XMLElementPosition XMLNode::positionOfText     (int i) const { if (i>=d->nText ) i=d->nText-1;  return findPosition(d,i,eNodeText ); }

XMLElementPosition XMLNode::positionOfClear    (int i) const { if (i>=d->nClear) i=d->nClear-1; return findPosition(d,i,eNodeClear); }

XMLElementPosition XMLNode::positionOfChildNode(int i) const { if (i>=d->nChild) i=d->nChild-1; return findPosition(d,i,eNodeChild); }

XMLElementPosition XMLNode::positionOfText (XMLCSTR lpszValue) const { return positionOfText (indexText (lpszValue)); }

XMLElementPosition XMLNode::positionOfClear(XMLCSTR lpszValue) const { return positionOfClear(indexClear(lpszValue)); }

XMLElementPosition XMLNode::positionOfClear(XMLClear *a) const { if (a) return positionOfClear(a->lpszValue); return positionOfClear(); }

XMLElementPosition XMLNode::positionOfChildNode(XMLNode x)  const

{

    if ((!d)||(!x.d)) return -1;

    XMLNodeData *dd=x.d;

    XMLNode *pc=d->pChild;

    int i=d->nChild;

    while (i--) if (pc[i].d==dd) return findPosition(d,i,eNodeChild);

    return -1;

}

XMLElementPosition XMLNode::positionOfChildNode(XMLCSTR name, int count) const

{

    if (!name) return positionOfChildNode(count);

    int j=0;

    do { getChildNode(name,&j); if (j<0) return -1; } while (count--);

    return findPosition(d,j-1,eNodeChild);

}



XMLNode XMLNode::getChildNodeWithAttribute(XMLCSTR name,XMLCSTR attributeName,XMLCSTR attributeValue, int *k) const

{

     int i=0,j;

     if (k) i=*k;

     XMLNode x;

     XMLCSTR t;

     do

     {

         x=getChildNode(name,&i);

         if (!x.isEmpty())

         {

             if (attributeValue)

             {

                 j=0;

                 do

                 {

                     t=x.getAttribute(attributeName,&j);

                     if (t&&(xstricmp(attributeValue,t)==0)) { if (k) *k=i; return x; }

                 } while (t);

             } else

             {

                 if (x.isAttributeSet(attributeName)) { if (k) *k=i; return x; }

             }

         }

     } while (!x.isEmpty());

     return emptyXMLNode;

}



// Find an attribute on an node.

XMLCSTR XMLNode::getAttribute(XMLCSTR lpszAttrib, int *j) const

{

    if (!d) return NULL;

    int i=0,n=d->nAttribute;

    if (j) i=*j;

    XMLAttribute *pAttr=d->pAttribute+i;

    for (; i<n; i++)

    {

        if (xstricmp(pAttr->lpszName, lpszAttrib)==0)

        {

            if (j) *j=i+1;

            return pAttr->lpszValue;

        }

        pAttr++;

    }

    return NULL;

}



char XMLNode::isAttributeSet(XMLCSTR lpszAttrib) const

{

    if (!d) return FALSE;

    int i,n=d->nAttribute;

    XMLAttribute *pAttr=d->pAttribute;

    for (i=0; i<n; i++)

    {

        if (xstricmp(pAttr->lpszName, lpszAttrib)==0)

        {

            return TRUE;

        }

        pAttr++;

    }

    return FALSE;

}



XMLCSTR XMLNode::getAttribute(XMLCSTR name, int j) const

{

    if (!d) return NULL;

    int i=0;

    while (j-->0) getAttribute(name,&i);

    return getAttribute(name,&i);

}



XMLNodeContents XMLNode::enumContents(int i) const

{

    XMLNodeContents c;

    if (!d) { c.etype=eNodeNULL; return c; }

    if (i<d->nAttribute)

    {

        c.etype=eNodeAttribute;

        c.attrib=d->pAttribute[i];

        return c;

    }

    i-=d->nAttribute;

    c.etype=(XMLElementType)(d->pOrder[i]&3);

    i=(d->pOrder[i])>>2;

    switch (c.etype)

    {

    case eNodeChild:     c.child = d->pChild[i];      break;

    case eNodeText:      c.text  = d->pText[i];       break;

    case eNodeClear:     c.clear = d->pClear[i];      break;

    default: break;

    }

    return c;

}



XMLCSTR XMLNode::getName() const { if (!d) return NULL; return d->lpszName;   }

int XMLNode::nText()       const { if (!d) return 0;    return d->nText;      }

int XMLNode::nChildNode()  const { if (!d) return 0;    return d->nChild;     }

int XMLNode::nAttribute()  const { if (!d) return 0;    return d->nAttribute; }

int XMLNode::nClear()      const { if (!d) return 0;    return d->nClear;     }

int XMLNode::nElement()    const { if (!d) return 0;    return d->nAttribute+d->nChild+d->nText+d->nClear; }

XMLClear     XMLNode::getClear         (int i) const { if ((!d)||(i>=d->nClear    )) return emptyXMLClear;     return d->pClear[i];     }

XMLAttribute XMLNode::getAttribute     (int i) const { if ((!d)||(i>=d->nAttribute)) return emptyXMLAttribute; return d->pAttribute[i]; }

XMLCSTR      XMLNode::getAttributeName (int i) const { if ((!d)||(i>=d->nAttribute)) return NULL;              return d->pAttribute[i].lpszName;  }

XMLCSTR      XMLNode::getAttributeValue(int i) const { if ((!d)||(i>=d->nAttribute)) return NULL;              return d->pAttribute[i].lpszValue; }

XMLCSTR      XMLNode::getText          (int i) const { if ((!d)||(i>=d->nText     )) return NULL;              return d->pText[i];      }

XMLNode      XMLNode::getChildNode     (int i) const { if ((!d)||(i>=d->nChild    )) return emptyXMLNode;      return d->pChild[i];     }

XMLNode      XMLNode::getParentNode    (     ) const { if ((!d)||(!d->pParent     )) return emptyXMLNode;      return XMLNode(d->pParent); }

char         XMLNode::isDeclaration    (     ) const { if (!d) return 0;             return d->isDeclaration; }

char         XMLNode::isEmpty          (     ) const { return (d==NULL); }

XMLNode       XMLNode::emptyNode       (     )       { return XMLNode::emptyXMLNode; }



XMLNode       XMLNode::addChild(XMLCSTR lpszName, char isDeclaration, XMLElementPosition pos)

              { return addChild_priv(0,stringDup(lpszName),isDeclaration,pos); }

XMLNode       XMLNode::addChild_WOSD(XMLSTR lpszName, char isDeclaration, XMLElementPosition pos)

              { return addChild_priv(0,lpszName,isDeclaration,pos); }

XMLAttribute *XMLNode::addAttribute(XMLCSTR lpszName, XMLCSTR lpszValue)

              { return addAttribute_priv(0,stringDup(lpszName),stringDup(lpszValue)); }

XMLAttribute *XMLNode::addAttribute_WOSD(XMLSTR lpszName, XMLSTR lpszValuev)

              { return addAttribute_priv(0,lpszName,lpszValuev); }

XMLCSTR       XMLNode::addText(XMLCSTR lpszValue, XMLElementPosition pos)

              { return addText_priv(0,stringDup(lpszValue),pos); }

XMLCSTR       XMLNode::addText_WOSD(XMLSTR lpszValue, XMLElementPosition pos)

              { return addText_priv(0,lpszValue,pos); }

XMLClear     *XMLNode::addClear(XMLCSTR lpszValue, XMLCSTR lpszOpen, XMLCSTR lpszClose, XMLElementPosition pos)

              { return addClear_priv(0,stringDup(lpszValue),lpszOpen,lpszClose,pos); }

XMLClear     *XMLNode::addClear_WOSD(XMLSTR lpszValue, XMLCSTR lpszOpen, XMLCSTR lpszClose, XMLElementPosition pos)

              { return addClear_priv(0,lpszValue,lpszOpen,lpszClose,pos); }

XMLCSTR       XMLNode::updateName(XMLCSTR lpszName)

              { return updateName_WOSD(stringDup(lpszName)); }

XMLAttribute *XMLNode::updateAttribute(XMLAttribute *newAttribute, XMLAttribute *oldAttribute)

              { return updateAttribute_WOSD(stringDup(newAttribute->lpszValue),stringDup(newAttribute->lpszName),oldAttribute->lpszName); }

XMLAttribute *XMLNode::updateAttribute(XMLCSTR lpszNewValue, XMLCSTR lpszNewName,int i)

              { return updateAttribute_WOSD(stringDup(lpszNewValue),stringDup(lpszNewName),i); }

XMLAttribute *XMLNode::updateAttribute(XMLCSTR lpszNewValue, XMLCSTR lpszNewName,XMLCSTR lpszOldName)

              { return updateAttribute_WOSD(stringDup(lpszNewValue),stringDup(lpszNewName),lpszOldName); }

XMLCSTR       XMLNode::updateText(XMLCSTR lpszNewValue, int i)

              { return updateText_WOSD(stringDup(lpszNewValue),i); }

XMLCSTR       XMLNode::updateText(XMLCSTR lpszNewValue, XMLCSTR lpszOldValue)

              { return updateText_WOSD(stringDup(lpszNewValue),lpszOldValue); }

XMLClear     *XMLNode::updateClear(XMLCSTR lpszNewContent, int i)

              { return updateClear_WOSD(stringDup(lpszNewContent),i); }

XMLClear     *XMLNode::updateClear(XMLCSTR lpszNewValue, XMLCSTR lpszOldValue)

              { return updateClear_WOSD(stringDup(lpszNewValue),lpszOldValue); }

XMLClear     *XMLNode::updateClear(XMLClear *newP,XMLClear *oldP)

              { return updateClear_WOSD(stringDup(newP->lpszValue),oldP->lpszValue); }



char XMLNode::setGlobalOptions(XMLCharEncoding _characterEncoding, char _guessWideCharChars,

                               char _dropWhiteSpace, char _removeCommentsInMiddleOfText)

{

    guessWideCharChars=_guessWideCharChars; dropWhiteSpace=_dropWhiteSpace; removeCommentsInMiddleOfText=_removeCommentsInMiddleOfText;

#ifdef _XMLWIDECHAR

    if (_characterEncoding) characterEncoding=_characterEncoding;

#else

    switch(_characterEncoding)

    {

    case char_encoding_UTF8:     characterEncoding=_characterEncoding; XML_ByteTable=XML_utf8ByteTable; break;

    case char_encoding_legacy:   characterEncoding=_characterEncoding; XML_ByteTable=XML_legacyByteTable; break;

    case char_encoding_ShiftJIS: characterEncoding=_characterEncoding; XML_ByteTable=XML_sjisByteTable; break;

    case char_encoding_GB2312:   characterEncoding=_characterEncoding; XML_ByteTable=XML_gb2312ByteTable; break;

    case char_encoding_Big5:

    case char_encoding_GBK:      characterEncoding=_characterEncoding; XML_ByteTable=XML_gbk_big5_ByteTable; break;

    default: return 1;

    }

#endif

    return 0;

}



XMLNode::XMLCharEncoding XMLNode::guessCharEncoding(void *buf,int l, char useXMLEncodingAttribute)

{

#ifdef _XMLWIDECHAR

    return (XMLCharEncoding)0;

#else

    if (l<25) return (XMLCharEncoding)0;

    if (guessWideCharChars&&(myIsTextWideChar(buf,l))) return (XMLCharEncoding)0;

    unsigned char *b=(unsigned char*)buf;

    if ((b[0]==0xef)&&(b[1]==0xbb)&&(b[2]==0xbf)) return char_encoding_UTF8;



    // Match utf-8 model ?

    XMLCharEncoding bestGuess=char_encoding_UTF8;

    int i=0;

    while (i<l)

        switch (XML_utf8ByteTable[b[i]])

        {

        case 4: i++; if ((i<l)&&(b[i]& 0xC0)!=0x80) { bestGuess=char_encoding_legacy; i=l; } // 10bbbbbb ?

        case 3: i++; if ((i<l)&&(b[i]& 0xC0)!=0x80) { bestGuess=char_encoding_legacy; i=l; } // 10bbbbbb ?

        case 2: i++; if ((i<l)&&(b[i]& 0xC0)!=0x80) { bestGuess=char_encoding_legacy; i=l; } // 10bbbbbb ?

        case 1: i++; break;

        case 0: i=l;

        }

    if (!useXMLEncodingAttribute) return bestGuess;

    // if encoding is specified and different from utf-8 than it's non-utf8

    // otherwise it's utf-8

    char bb[201];

    l=mmin(l,200);

    memcpy(bb,buf,l); // copy buf into bb to be able to do "bb[l]=0"

    bb[l]=0;

    b=(unsigned char*)strstr(bb,"encoding");

    if (!b) return bestGuess;

    b+=8; while XML_isSPACECHAR(*b) b++; if (*b!='=') return bestGuess;

    b++;  while XML_isSPACECHAR(*b) b++; if ((*b!='\'')&&(*b!='"')) return bestGuess;

    b++;  while XML_isSPACECHAR(*b) b++;



    if ((xstrnicmp((char*)b,"utf-8",5)==0)||

        (xstrnicmp((char*)b,"utf8",4)==0))

    {

        if (bestGuess==char_encoding_legacy) return char_encoding_error;

        return char_encoding_UTF8;

    }



    if ((xstrnicmp((char*)b,"shiftjis",8)==0)||

        (xstrnicmp((char*)b,"shift-jis",9)==0)||

        (xstrnicmp((char*)b,"sjis",4)==0)) return char_encoding_ShiftJIS;



    if (xstrnicmp((char*)b,"GB2312",6)==0) return char_encoding_GB2312;

    if (xstrnicmp((char*)b,"Big5",4)==0) return char_encoding_Big5;

    if (xstrnicmp((char*)b,"GBK",3)==0) return char_encoding_GBK;



    return char_encoding_legacy;

#endif

}

#undef XML_isSPACECHAR



//////////////////////////////////////////////////////////

//      Here starts the base64 conversion functions.    //

//////////////////////////////////////////////////////////



static const char base64Fillchar = _CXML('='); // used to mark partial words at the end



// this lookup table defines the base64 encoding

XMLCSTR base64EncodeTable=_CXML("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/");



// Decode Table gives the index of any valid base64 character in the Base64 table]

// 96: '='  -   97: space char   -   98: illegal char   -   99: end of string

const unsigned char base64DecodeTable[] = {

    99,98,98,98,98,98,98,98,98,97,  97,98,98,97,98,98,98,98,98,98,  98,98,98,98,98,98,98,98,98,98,  //00 -29

    98,98,97,98,98,98,98,98,98,98,  98,98,98,62,98,98,98,63,52,53,  54,55,56,57,58,59,60,61,98,98,  //30 -59

    98,96,98,98,98, 0, 1, 2, 3, 4,   5, 6, 7, 8, 9,10,11,12,13,14,  15,16,17,18,19,20,21,22,23,24,  //60 -89

    25,98,98,98,98,98,98,26,27,28,  29,30,31,32,33,34,35,36,37,38,  39,40,41,42,43,44,45,46,47,48,  //90 -119

    49,50,51,98,98,98,98,98,98,98,  98,98,98,98,98,98,98,98,98,98,  98,98,98,98,98,98,98,98,98,98,  //120 -149

    98,98,98,98,98,98,98,98,98,98,  98,98,98,98,98,98,98,98,98,98,  98,98,98,98,98,98,98,98,98,98,  //150 -179

    98,98,98,98,98,98,98,98,98,98,  98,98,98,98,98,98,98,98,98,98,  98,98,98,98,98,98,98,98,98,98,  //180 -209

    98,98,98,98,98,98,98,98,98,98,  98,98,98,98,98,98,98,98,98,98,  98,98,98,98,98,98,98,98,98,98,  //210 -239

    98,98,98,98,98,98,98,98,98,98,  98,98,98,98,98,98                                               //240 -255

};



XMLParserBase64Tool::~XMLParserBase64Tool(){ freeBuffer(); }



void XMLParserBase64Tool::freeBuffer(){ if (buf) free(buf); buf=NULL; buflen=0; }



int XMLParserBase64Tool::encodeLength(int inlen, char formatted)

{

    unsigned int i=((inlen-1)/3*4+4+1);

    if (formatted) i+=inlen/54;

    return i;

}



XMLSTR XMLParserBase64Tool::encode(unsigned char *inbuf, unsigned int inlen, char formatted)

{

    int i=encodeLength(inlen,formatted),k=17,eLen=inlen/3,j;

    alloc(i*sizeof(XMLCHAR));

    XMLSTR curr=(XMLSTR)buf;

    for(i=0;i<eLen;i++)

    {

        // Copy next three bytes into lower 24 bits of int, paying attention to sign.

        j=(inbuf[0]<<16)|(inbuf[1]<<8)|inbuf[2]; inbuf+=3;

        // Encode the int into four chars

        *(curr++)=base64EncodeTable[ j>>18      ];

        *(curr++)=base64EncodeTable[(j>>12)&0x3f];

        *(curr++)=base64EncodeTable[(j>> 6)&0x3f];

        *(curr++)=base64EncodeTable[(j    )&0x3f];

        if (formatted) { if (!k) { *(curr++)=_CXML('\n'); k=18; } k--; }

    }

    eLen=inlen-eLen*3; // 0 - 2.

    if (eLen==1)

    {

        *(curr++)=base64EncodeTable[ inbuf[0]>>2      ];

        *(curr++)=base64EncodeTable[(inbuf[0]<<4)&0x3F];

        *(curr++)=base64Fillchar;

        *(curr++)=base64Fillchar;

    } else if (eLen==2)

    {

        j=(inbuf[0]<<8)|inbuf[1];

        *(curr++)=base64EncodeTable[ j>>10      ];

        *(curr++)=base64EncodeTable[(j>> 4)&0x3f];

        *(curr++)=base64EncodeTable[(j<< 2)&0x3f];

        *(curr++)=base64Fillchar;

    }

    *(curr++)=0;

    return (XMLSTR)buf;

}



unsigned int XMLParserBase64Tool::decodeSize(XMLCSTR data,XMLError *xe)

{

    if (!data) return 0;

    if (xe) *xe=eXMLErrorNone;

    int size=0;

    unsigned char c;

    //skip any extra characters (e.g. newlines or spaces)

    while (*data)

    {

#ifdef _XMLWIDECHAR

        if (*data>255) { if (xe) *xe=eXMLErrorBase64DecodeIllegalCharacter; return 0; }

#endif

        c=base64DecodeTable[(unsigned char)(*data)];

        if (c<97) size++;

        else if (c==98) { if (xe) *xe=eXMLErrorBase64DecodeIllegalCharacter; return 0; }

        data++;

    }

    if (xe&&(size%4!=0)) *xe=eXMLErrorBase64DataSizeIsNotMultipleOf4;

    if (size==0) return 0;

    do { data--; size--; } while(*data==base64Fillchar); size++;

    return (unsigned int)((size*3)/4);

}



unsigned char XMLParserBase64Tool::decode(XMLCSTR data, unsigned char *buf, int len, XMLError *xe)

{

    if (!data) return 0;

    if (xe) *xe=eXMLErrorNone;

    int i=0,p=0;

    unsigned char d,c;

    for(;;)

    {



#ifdef _XMLWIDECHAR

#define BASE64DECODE_READ_NEXT_CHAR(c)                                              \

        do {                                                                        \

            if (data[i]>255){ c=98; break; }                                        \

            c=base64DecodeTable[(unsigned char)data[i++]];                       \

        }while (c==97);                                                             \

        if(c==98){ if(xe)*xe=eXMLErrorBase64DecodeIllegalCharacter; return 0; }

#else

#define BASE64DECODE_READ_NEXT_CHAR(c)                                           \

        do { c=base64DecodeTable[(unsigned char)data[i++]]; }while (c==97);   \

        if(c==98){ if(xe)*xe=eXMLErrorBase64DecodeIllegalCharacter; return 0; }

#endif



        BASE64DECODE_READ_NEXT_CHAR(c)

        if (c==99) { return 2; }

        if (c==96)

        {

            if (p==(int)len) return 2;

            if (xe) *xe=eXMLErrorBase64DecodeTruncatedData;

            return 1;

        }



        BASE64DECODE_READ_NEXT_CHAR(d)

        if ((d==99)||(d==96)) { if (xe) *xe=eXMLErrorBase64DecodeTruncatedData;  return 1; }

        if (p==(int)len) {      if (xe) *xe=eXMLErrorBase64DecodeBufferTooSmall; return 0; }

        buf[p++]=(unsigned char)((c<<2)|((d>>4)&0x3));



        BASE64DECODE_READ_NEXT_CHAR(c)

        if (c==99) { if (xe) *xe=eXMLErrorBase64DecodeTruncatedData;  return 1; }

        if (p==(int)len)

        {

            if (c==96) return 2;

            if (xe) *xe=eXMLErrorBase64DecodeBufferTooSmall;

            return 0;

        }

        if (c==96) { if (xe) *xe=eXMLErrorBase64DecodeTruncatedData;  return 1; }

        buf[p++]=(unsigned char)(((d<<4)&0xf0)|((c>>2)&0xf));



        BASE64DECODE_READ_NEXT_CHAR(d)

        if (d==99 ) { if (xe) *xe=eXMLErrorBase64DecodeTruncatedData;  return 1; }

        if (p==(int)len)

        {

            if (d==96) return 2;

            if (xe) *xe=eXMLErrorBase64DecodeBufferTooSmall;

            return 0;

        }

        if (d==96) { if (xe) *xe=eXMLErrorBase64DecodeTruncatedData;  return 1; }

        buf[p++]=(unsigned char)(((c<<6)&0xc0)|d);

    }

}

#undef BASE64DECODE_READ_NEXT_CHAR



void XMLParserBase64Tool::alloc(int newsize)

{

    if ((!buf)&&(newsize)) { buf=malloc(newsize); buflen=newsize; return; }

    if (newsize>buflen) { buf=realloc(buf,newsize); buflen=newsize; }

}



unsigned char *XMLParserBase64Tool::decode(XMLCSTR data, int *outlen, XMLError *xe)

{

    if (xe) *xe=eXMLErrorNone;

    if (!data) { *outlen=0; return (unsigned char*)""; }

    unsigned int len=decodeSize(data,xe);

    if (outlen) *outlen=len;

    if (!len) return NULL;

    alloc(len+1);

    if(!decode(data,(unsigned char*)buf,len,xe)){ return NULL; }

    return (unsigned char*)buf;

}