///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000-2003 Intel Corporation
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither name of Intel Corporation nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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///////////////////////////////////////////////////////////////////////////
#include <string.h>
#include "ixmlparser.h"
#ifdef WIN32
#define strncasecmp strnicmp
#endif
static char g_error_char = '\0';
static const char LESSTHAN = '<';
static const char GREATERTHAN = '>';
static const char SLASH = '/';
static const char EQUALS = '=';
static const char QUOTE = '\"';
static const char SINGLEQUOTE = '\'';
static const char *WHITESPACE = "\n\t\r ";
static const char *COMPLETETAG = "/>";
static const char *ENDTAG = "</";
static const char *XMLDECL = "<?xml ";
static const char *XMLDECL2 = "<?xml?";
static const char *BEGIN_COMMENT = "<!--";
static const char *END_COMMENT = "-->";
static const char *BEGIN_PI = "<?";
static const char *END_PI = "?>";
static const char *BEGIN_DOCTYPE = "<!DOCTYPE";
static const char *CDSTART = "<![CDATA[";
static const char *CDEND = "]]>";
static const char *DEC_NUMBERS = "0123456789";
static const char *HEX_NUMBERS = "0123456789ABCDEFabcdef";
typedef struct char_info {
unsigned short l,
h;
} char_info_t;
typedef char utf8char[8];
/*==============================================================================*
* Letter table contains all characters in XML 1.0 plus ":", "_" and
* ideographic.
*
* This table contains all the characters that an element name can start with.
* See XML 1.0 (2nd Edition) for more details.
*
*===============================================================================*/
static char_info_t Letter[] = {
{0x003A, 0x003A}, // character ":"
{0x0041, 0x005A},
{0x005F, 0x005F}, // character "_"
{0x0061, 0x007A}, {0x00C0, 0x00D6}, {0x00D8, 0x00F6}, {0x00F8, 0x00FF},
{0x0100, 0x0131}, {0x0134, 0x013E}, {0x0141, 0x0148}, {0x014A, 0x017E},
{0x0180, 0x01C3}, {0x01CD, 0x01F0}, {0x01F4, 0x01F5}, {0x01FA, 0x0217},
{0x0250, 0x02A8}, {0x02BB, 0x02C1}, {0x0386, 0x0386}, {0x0388, 0x038A},
{0x038C, 0x038C}, {0x038E, 0x03A1}, {0x03A3, 0x03CE}, {0x03D0, 0x03D6},
{0x03DA, 0x03DA},
{0x03DC, 0x03DC}, {0x03DE, 0x03DE}, {0x03E0, 0x03E0}, {0x03E2, 0x03F3},
{0x0401, 0x040C}, {0x040E, 0x044F}, {0x0451, 0x045C}, {0x045E, 0x0481},
{0x0490, 0x04C4}, {0x04C7, 0x04C8}, {0x04CB, 0x04CC}, {0x04D0, 0x04EB},
{0x04EE, 0x04F5}, {0x04F8, 0x04F9}, {0x0531, 0x0556}, {0x0559, 0x0559},
{0x0561, 0x0586}, {0x05D0, 0x05EA}, {0x05F0, 0x05F2}, {0x0621, 0x063A},
{0x0641, 0x064A}, {0x0671, 0x06B7}, {0x06BA, 0x06BE}, {0x06C0, 0x06CE},
{0x06D0, 0x06D3}, {0x06D5, 0x06D5}, {0x06E5, 0x06E6}, {0x0905, 0x0939},
{0x093D, 0x093D}, {0x0958, 0x0961}, {0x0985, 0x098C}, {0x098F, 0x0990},
{0x0993, 0x09A8}, {0x09AA, 0x09B0}, {0x09B2, 0x09B2}, {0x09B6, 0x09B9},
{0x09DC, 0x09DD}, {0x09DF, 0x09E1}, {0x09F0, 0x09F1}, {0x0A05, 0x0A0A},
{0x0A0F, 0x0A10}, {0x0A13, 0x0A28}, {0x0A2A, 0x0A30}, {0x0A32, 0x0A33},
{0x0A35, 0x0A36}, {0x0A38, 0x0A39}, {0x0A59, 0x0A5C}, {0x0A5E, 0x0A5E},
{0x0A72, 0x0A74}, {0x0A85, 0x0A8B}, {0x0A8D, 0x0A8D}, {0x0A8F, 0x0A91},
{0x0A93, 0x0AA8}, {0x0AAA, 0x0AB0}, {0x0AB2, 0x0AB3}, {0x0AB5, 0x0AB9},
{0x0ABD, 0x0ABD}, {0x0AE0, 0x0AE0}, {0x0B05, 0x0B0C}, {0x0B0F, 0x0B10},
{0x0B13, 0x0B28}, {0x0B2A, 0x0B30}, {0x0B32, 0x0B33}, {0x0B36, 0x0B39},
{0x0B3D, 0x0B3D}, {0x0B5C, 0x0B5D}, {0x0B5F, 0x0B61}, {0x0B85, 0x0B8A},
{0x0B8E, 0x0B90}, {0x0B92, 0x0B95}, {0x0B99, 0x0B9A}, {0x0B9C, 0x0B9C},
{0x0B9E, 0x0B9F}, {0x0BA3, 0x0BA4}, {0x0BA8, 0x0BAA}, {0x0BAE, 0x0BB5},
{0x0BB7, 0x0BB9}, {0x0C05, 0x0C0C}, {0x0C0E, 0x0C10}, {0x0C12, 0x0C28},
{0x0C2A, 0x0C33}, {0x0C35, 0x0C39}, {0x0C60, 0x0C61}, {0x0C85, 0x0C8C},
{0x0C8E, 0x0C90}, {0x0C92, 0x0CA8}, {0x0CAA, 0x0CB3}, {0x0CB5, 0x0CB9},
{0x0CDE, 0x0CDE}, {0x0CE0, 0x0CE1}, {0x0D05, 0x0D0C}, {0x0D0E, 0x0D10},
{0x0D12, 0x0D28}, {0x0D2A, 0x0D39}, {0x0D60, 0x0D61}, {0x0E01, 0x0E2E},
{0x0E30, 0x0E30}, {0x0E32, 0x0E33}, {0x0E40, 0x0E45}, {0x0E81, 0x0E82},
{0x0E84, 0x0E84}, {0x0E87, 0x0E88}, {0x0E8A, 0x0E8A}, {0x0E8D, 0x0E8D},
{0x0E94, 0x0E97}, {0x0E99, 0x0E9F}, {0x0EA1, 0x0EA3}, {0x0EA5, 0x0EA5},
{0x0EA7, 0x0EA7}, {0x0EAA, 0x0EAB}, {0x0EAD, 0x0EAE}, {0x0EB0, 0x0EB0},
{0x0EB2, 0x0EB3}, {0x0EBD, 0x0EBD}, {0x0EC0, 0x0EC4}, {0x0F40, 0x0F47},
{0x0F49, 0x0F69}, {0x10A0, 0x10C5}, {0x10D0, 0x10F6}, {0x1100, 0x1100},
{0x1102, 0x1103}, {0x1105, 0x1107}, {0x1109, 0x1109}, {0x110B, 0x110C},
{0x110E, 0x1112}, {0x113C, 0x113C}, {0x113E, 0x113E}, {0x1140, 0x1140},
{0x114C, 0x114C}, {0x114E, 0x114E}, {0x1150, 0x1150}, {0x1154, 0x1155},
{0x1159, 0x1159}, {0x115F, 0x1161}, {0x1163, 0x1163}, {0x1165, 0x1165},
{0x1167, 0x1167}, {0x1169, 0x1169}, {0x116D, 0x116E}, {0x1172, 0x1173},
{0x1175, 0x1175}, {0x119E, 0x119E}, {0x11A8, 0x11A8}, {0x11AB, 0x11AB},
{0x11AE, 0x11AF}, {0x11B7, 0x11B8}, {0x11BA, 0x11BA}, {0x11BC, 0x11C2},
{0x11EB, 0x11EB}, {0x11F0, 0x11F0}, {0x11F9, 0x11F9}, {0x1E00, 0x1E9B},
{0x1EA0, 0x1EF9}, {0x1F00, 0x1F15}, {0x1F18, 0x1F1D}, {0x1F20, 0x1F45},
{0x1F48, 0x1F4D}, {0x1F50, 0x1F57}, {0x1F59, 0x1F59}, {0x1F5B, 0x1F5B},
{0x1F5D, 0x1F5D}, {0x1F5F, 0x1F7D}, {0x1F80, 0x1FB4}, {0x1FB6, 0x1FBC},
{0x1FBE, 0x1FBE}, {0x1FC2, 0x1FC4}, {0x1FC6, 0x1FCC}, {0x1FD0, 0x1FD3},
{0x1FD6, 0x1FDB}, {0x1FE0, 0x1FEC}, {0x1FF2, 0x1FF4}, {0x1FF6, 0x1FFC},
{0x2126, 0x2126}, {0x212A, 0x212B}, {0x212E, 0x212E}, {0x2180, 0x2182},
{0x3007, 0x3007}, {0x3021, 0x3029}, // these two are ideographic
{0x3041, 0x3094}, {0x30A1, 0x30FA}, {0x3105, 0x312C},
{0x4E00, 0x9FA5}, // ideographic
{0xAC00, 0xD7A3}
};
#define LETTERTABLESIZE (sizeof(Letter)/sizeof(Letter[0]))
/*==============================================================================*
* NameChar table contains
* CombiningChar, Extender, Digit, '-', '.', less '_', ':'
* NameChar ::= Digit | '-' | '.' | CombiningChar | Extender
* See XML 1.0 2nd Edition
*
*===============================================================================*/
static char_info_t NameChar[] = {
{0x002D, 0x002D}, // character "-"
{0x002E, 0x002E}, // character "."
{0x0030, 0x0039}, // digit
{0x00B7, 0x00B7}, {0x02D0, 0x02D0}, {0x02D1, 0x02D1}, // extended
{0x0300, 0x0345}, {0x0360, 0x0361},
{0x0387, 0x0387}, // extended
{0x0483, 0x0486}, {0x0591, 0x05A1}, {0x05A3, 0x05B9},
{0x05BB, 0x05BD}, {0x05BF, 0x05BF}, {0x05C1, 0x05C2}, {0x05C4, 0x05C4},
{0x0640, 0x0640}, // extended
{0x064B, 0x0652},
{0x0660, 0x0669}, // digit
{0x0670, 0x0670},
{0x06D6, 0x06DC}, {0x06DD, 0x06DF}, {0x06E0, 0x06E4}, {0x06E7, 0x06E8},
{0x06EA, 0x06ED},
{0x06F0, 0x06F9}, // digit
{0x0901, 0x0903}, {0x093C, 0x093C},
{0x093E, 0x094C}, {0x094D, 0x094D}, {0x0951, 0x0954}, {0x0962, 0x0963},
{0x0966, 0x096F}, // digit
{0x0981, 0x0983}, {0x09BC, 0x09BC}, {0x09BE, 0x09BE},
{0x09BF, 0x09BF}, {0x09C0, 0x09C4}, {0x09C7, 0x09C8}, {0x09CB, 0x09CD},
{0x09D7, 0x09D7}, {0x09E2, 0x09E3},
{0x09E6, 0x09EF}, // digit
{0x0A02, 0x0A02},
{0x0A3C, 0x0A3C}, {0x0A3E, 0x0A3E}, {0x0A3F, 0x0A3F}, {0x0A40, 0x0A42},
{0x0A47, 0x0A48}, {0x0A4B, 0x0A4D},
{0x0A66, 0x0A6F}, // digit
{0x0A70, 0x0A71},
{0x0A81, 0x0A83}, {0x0ABC, 0x0ABC}, {0x0ABE, 0x0AC5}, {0x0AC7, 0x0AC9},
{0x0ACB, 0x0ACD},
{0x0AE6, 0x0AEF}, // digit
{0x0B01, 0x0B03}, {0x0B3C, 0x0B3C},
{0x0B3E, 0x0B43}, {0x0B47, 0x0B48}, {0x0B4B, 0x0B4D}, {0x0B56, 0x0B57},
{0x0B66, 0x0B6F}, // digit
{0x0B82, 0x0B83}, {0x0BBE, 0x0BC2}, {0x0BC6, 0x0BC8},
{0x0BCA, 0x0BCD}, {0x0BD7, 0x0BD7},
{0x0BE7, 0x0BEF}, // digit
{0x0C01, 0x0C03},
{0x0C3E, 0x0C44}, {0x0C46, 0x0C48}, {0x0C4A, 0x0C4D}, {0x0C55, 0x0C56},
{0x0C66, 0x0C6F}, // digit
{0x0C82, 0x0C83}, {0x0CBE, 0x0CC4}, {0x0CC6, 0x0CC8},
{0x0CCA, 0x0CCD}, {0x0CD5, 0x0CD6},
{0x0CE6, 0x0CEF}, // digit
{0x0D02, 0x0D03},
{0x0D3E, 0x0D43}, {0x0D46, 0x0D48}, {0x0D4A, 0x0D4D}, {0x0D57, 0x0D57},
{0x0D66, 0x0D6F}, // digit
{0x0E31, 0x0E31}, {0x0E34, 0x0E3A},
{0x0E46, 0x0E46}, // extended
{0x0E47, 0x0E4E},
{0x0E50, 0x0E59}, // digit
{0x0EB1, 0x0EB1}, {0x0EB4, 0x0EB9},
{0x0EBB, 0x0EBC},
{0x0EC6, 0x0EC6}, // extended
{0x0EC8, 0x0ECD},
{0x0ED0, 0x0ED9}, // digit
{0x0F18, 0x0F19},
{0x0F20, 0x0F29}, // digit
{0x0F35, 0x0F35}, {0x0F37, 0x0F37},
{0x0F39, 0x0F39}, {0x0F3E, 0x0F3E}, {0x0F3F, 0x0F3F}, {0x0F71, 0x0F84},
{0x0F86, 0x0F8B}, {0x0F90, 0x0F95}, {0x0F97, 0x0F97}, {0x0F99, 0x0FAD},
{0x0FB1, 0x0FB7}, {0x0FB9, 0x0FB9}, {0x20D0, 0x20DC}, {0x20E1, 0x20E1},
{0x3005, 0x3005}, // extended
{0x302A, 0x302F},
{0x3031, 0x3035}, // extended
{0x3099, 0x3099}, {0x309A, 0x309A}, // combining char
{0x309D, 0x309E}, {0x30FC, 0x30FE} // extended
};
#define NAMECHARTABLESIZE (sizeof(NameChar)/sizeof(NameChar[0]))
// functions used in this file
static void Parser_free( Parser * myParser );
static int Parser_skipDocType( char **pstr );
static int Parser_skipProlog( Parser * xmlParser );
static int Parser_skipMisc( Parser * xmlParser );
static void Parser_freeElementStackItem( IXML_ElementStack * pItem );
static void Parser_freeNsURI( IXML_NamespaceURI * pNsURI );
static int Parser_getNextNode( Parser * myParser,
IXML_Node * newNode,
BOOL * isEnd );
static int Parser_getNextToken( Parser * myParser );
static int Parser_xmlNamespace( Parser * myParser,
IXML_Node * newNode );
static BOOL Parser_ElementPrefixDefined( Parser * myParser,
IXML_Node * newNode,
char **nsURI );
static int Parser_setElementNamespace( IXML_Element * newElement,
const char *nsURI );
static int Parser_parseDocument( IXML_Document ** retDoc,
Parser * domParser );
static BOOL Parser_hasDefaultNamespace( Parser * xmlParser,
IXML_Node * newNode,
char **nsURI );
static int Parser_getChar( IN const char *src,
INOUT int *cLen );
/*==============================================================================*
* safe_strdup
* strdup that handles NULL input.
*
*===============================================================================*/
static char *
safe_strdup(const char *s)
{
assert(s != NULL);
if (s == NULL) {
return strdup("");
}
return strdup(s);
}
/*==============================================================================*
* Parser_isCharInTable
* will determine whether character c is in the table of tbl
* (either Letter table or NameChar table)
*
*===============================================================================*/
static BOOL
Parser_isCharInTable( IN int c,
IN char_info_t * tbl,
IN int sz )
{
int t = 0,
b = sz,
m;
while( t <= b ) {
m = ( t + b ) / 2;
if( c < tbl[m].l ) {
b = m - 1;
} else if( c > tbl[m].h ) {
t = m + 1;
} else {
return TRUE;
}
}
return FALSE;
}
/*==============================================================================*
* Parser_isXmlChar
* see XML 1.0 (2nd Edition) 2.2.
* Internal to parser only
*
*===============================================================================*/
static BOOL
Parser_isXmlChar( IN int c )
{
return ( c == 0x9 || c == 0xA || c == 0xD ||
( c >= 0x20 && c <= 0xD7FF ) ||
( c >= 0xE000 && c <= 0xFFFD ) ||
( c >= 0x10000 && c <= 0x10FFFF ) );
}
/*==============================================================================*
* Parser_isNameChar
* check whether c (int) is in LetterTable or NameCharTable
* Internal to parser only.
*
*===============================================================================*/
static BOOL
Parser_isNameChar( IN int c,
IN BOOL bNameChar )
{
if( Parser_isCharInTable( c, Letter, LETTERTABLESIZE ) ) {
return TRUE;
}
if( bNameChar
&& Parser_isCharInTable( c, NameChar, NAMECHARTABLESIZE ) ) {
return TRUE;
}
return FALSE;
}
/*==============================================================================*
* Parser_isValidXmlName
* Check to see whether name is a valid xml name.
* External function.
*
*===============================================================================*/
BOOL
Parser_isValidXmlName( IN const DOMString name )
{
const char *pstr = NULL;
int i = 0,
nameLen = 0;
assert( name != NULL );
nameLen = strlen( name );
pstr = name;
if( Parser_isNameChar( *pstr, FALSE ) == TRUE ) {
for( i = 1; i < nameLen; i++ ) {
if( Parser_isNameChar( *( pstr + i ), TRUE ) == FALSE ) { //illegal char
return FALSE;
}
}
}
return TRUE;
}
/*==============================================================================*
* Parser_setErrorChar:
* If 'c' is 0 (default), the parser is strict about XML encoding :
* invalid UTF-8 sequences or "&" entities are rejected, and the parsing
* aborts.
* If 'c' is not 0, the parser is relaxed : invalid UTF-8 characters
* are replaced by this character, and invalid "&" entities are left
* untranslated. The parsing is then allowed to continue.
* External function.
*
*===============================================================================*/
void
Parser_setErrorChar( IN char c )
{
g_error_char = c;
}
/*==============================================================================*
* Parser_intToUTF8:
* Encoding a character to its UTF-8 character string, and return its length
* internal function.
*
*===============================================================================*/
static int
Parser_intToUTF8( IN int c,
IN utf8char s )
{
if( c < 0 ) {
return 0;
}
if( c <= 127 ) {
s[0] = c;
s[1] = 0;
return 1;
} else if( c <= 0x07FF ) { // 0x0080 < c <= 0x07FF
s[0] = 0xC0 | ( c >> 6 );
s[1] = 0x80 | ( c & 0x3f );
s[2] = 0;
return 2;
} else if( c <= 0xFFFF ) { // 0x0800 < c <= 0xFFFF
s[0] = 0xE0 | ( c >> 12 );
s[1] = 0x80 | ( ( c >> 6 ) & 0x3f );
s[2] = 0x80 | ( c & 0x3f );
s[3] = 0;
return 3;
} else if( c <= 0x1FFFFF ) { // 0x10000 < c <= 0x1FFFFF
s[0] = 0xF0 | ( c >> 18 );
s[1] = 0x80 | ( ( c >> 12 ) & 0x3f );
s[2] = 0x80 | ( ( c >> 6 ) & 0x3f );
s[3] = 0x80 | ( c & 0x3f );
s[4] = 0;
return 4;
} else if( c <= 0x3FFFFFF ) { // 0x200000 < c <= 3FFFFFF
s[0] = 0xF8 | ( c >> 24 );
s[1] = 0x80 | ( ( c >> 18 ) & 0x3f );
s[2] = 0x80 | ( ( c >> 12 ) & 0x3f );
s[3] = 0x80 | ( ( c >> 6 ) & 0x3f );
s[4] = 0x80 | ( c & 0x3f );
s[5] = 0;
return 5;
} else if( c <= 0x7FFFFFFF ) { // 0x4000000 < c <= 7FFFFFFF
s[0] = 0xFC | ( c >> 30 );
s[1] = 0x80 | ( ( c >> 24 ) & 0x3f );
s[2] = 0x80 | ( ( c >> 18 ) & 0x3f );
s[3] = 0x80 | ( ( c >> 12 ) & 0x3f );
s[4] = 0x80 | ( ( c >> 6 ) & 0x3f );
s[5] = 0x80 | ( c & 0x3f );
s[6] = 0;
return 6;
} else { // illegal
return 0;
}
}
/*==============================================================================*
* Parser_UTF8ToInt
* In UTF-8, characters are encoded using sequences of 1 to 6 octets.
* This functions will return a UTF-8 character value and its octets number.
* Internal to parser only.
* Internal to parser only
*
*===============================================================================*/
static int
Parser_UTF8ToInt( IN const char *ss,
OUT int *len )
{
const unsigned char *s = ( const unsigned char * )ss;
int c = *s;
if( c <= 127 ) { // if c<=127, c is just the character.
*len = 1;
return c;
} else if( ( c & 0xE0 ) == 0xC0 && ( s[1] & 0xc0 ) == 0x80 ) { // a sequence of 110xxxxx and 10xxxxxx?
*len = 2;
return ( ( ( c & 0x1f ) << 6 ) | ( s[1] & 0x3f ) );
} else if( ( c & 0xF0 ) == 0xE0 && ( s[1] & 0xc0 ) == 0x80 && ( s[2] & 0xc0 ) == 0x80 ) { // a sequence of 1110xxxx,10xxxxxx and 10xxxxxx ?
*len = 3;
return ( ( ( c & 0xf ) << 12 ) | ( ( s[1] & 0x3f ) << 6 ) |
( s[2] & 0x3f ) );
} else if( ( c & 0xf8 ) == 0xf0 && ( s[1] & 0xc0 ) == 0x80 && ( s[2] & 0xc0 ) == 0x80 && ( s[3] & 0xc0 ) == 0x80 ) { // a sequence of 11110xxx,10xxxxxx,10xxxxxx and 10xxxxxx ?
*len = 4;
return ( ( ( c & 0x7 ) << 18 ) | ( ( s[1] & 0x3f ) << 12 ) |
( ( s[2] & 0x3f ) << 6 ) | ( s[3] & 0x3f ) );
} else if( ( c & 0xfc ) == 0xf8 && ( s[1] & 0xc0 ) == 0x80 && ( s[2] & 0xc0 ) == 0x80 && ( s[3] & 0xc0 ) == 0x80 && ( s[4] & 0xc0 ) == 0x80 ) { // a sequence of 111110xx,10xxxxxx,10xxxxxx,10xxxxxx,10xxxxxx ?
*len = 5;
return ( ( ( c & 0x3 ) << 24 ) | ( ( s[1] & 0x3f ) << 18 ) |
( ( s[2] & 0x3f ) << 12 ) | ( ( s[3] & 0x3f ) << 6 ) |
( s[4] & 0x3f ) );
} else if( ( c & 0xfe ) == 0xfc && ( s[1] & 0xc0 ) == 0x80 && ( s[2] & 0xc0 ) == 0x80 && ( s[3] & 0xc0 ) == 0x80 && ( s[4] & 0xc0 ) == 0x80 && ( s[5] & 0xc0 ) == 0x80 ) { // a sequence of 1111110x,10xxxxxx,10xxxxxx,10xxxxxx,10xxxxxx and 10xxxxxx ?
*len = 6;
return ( ( ( c & 0x1 ) << 30 ) | ( ( s[1] & 0x3f ) << 24 ) |
( ( s[2] & 0x3f ) << 18 ) | ( ( s[3] & 0x3f ) << 12 ) |
( ( s[4] & 0x3f ) << 6 ) | ( s[5] & 0x3f ) );
} else { // none of above, error
if (g_error_char) {
*len = 1;
return g_error_char;
} else {
*len = 0;
return -1;
}
}
}
/*==============================================================================*
* Parser_init
* Initializes a xml parser.
* Internal to parser only
*
*===============================================================================*/
static Parser *
Parser_init( )
{
Parser *newParser = NULL;
newParser = ( Parser * ) malloc( sizeof( Parser ) );
if( newParser == NULL ) {
return NULL;
}
memset( newParser, 0, sizeof( Parser ) );
ixml_membuf_init( &( newParser->tokenBuf ) );
ixml_membuf_init( &( newParser->lastElem ) );
return newParser;
}
/*================================================================
* Parser_isValidEndElement
* check if a new node->nodeName matches top of element stack.
* Internal to parser only.
*
*=================================================================*/
static int
Parser_isValidEndElement( IN Parser * xmlParser,
IN IXML_Node * newNode )
{
return ( strcmp( xmlParser->pCurElement->element, newNode->nodeName )
== 0 );
}
/*===============================================================
* Parser_pushElement
* push a new element onto element stack
* Internal to parser only.
*
*=================================================================*/
static int
Parser_pushElement( IN Parser * xmlParser,
IN IXML_Node * newElement )
{
IXML_ElementStack *pCurElement = NULL;
IXML_ElementStack *pNewStackElement = NULL;
assert( newElement );
if( newElement != NULL ) {
// push new element
pNewStackElement =
( IXML_ElementStack * ) malloc( sizeof( IXML_ElementStack ) );
if( pNewStackElement == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
memset( pNewStackElement, 0, sizeof( IXML_ElementStack ) );
// the element member includes both prefix and name
pNewStackElement->element = safe_strdup( newElement->nodeName );
if( pNewStackElement->element == NULL ) {
free( pNewStackElement );
return IXML_INSUFFICIENT_MEMORY;
}
if( newElement->prefix != 0 ) {
pNewStackElement->prefix = safe_strdup( newElement->prefix );
if( pNewStackElement->prefix == NULL ) {
Parser_freeElementStackItem( pNewStackElement );
free( pNewStackElement );
return IXML_INSUFFICIENT_MEMORY;
}
}
if( newElement->namespaceURI != 0 ) {
pNewStackElement->namespaceUri =
safe_strdup( newElement->namespaceURI );
if( pNewStackElement->namespaceUri == NULL ) {
Parser_freeElementStackItem( pNewStackElement );
free( pNewStackElement );
return IXML_INSUFFICIENT_MEMORY;
}
}
pCurElement = xmlParser->pCurElement;
// insert the new element into the top of the stack
pNewStackElement->nextElement = pCurElement;
xmlParser->pCurElement = pNewStackElement;
}
return IXML_SUCCESS;
}
/*================================================================
* Parser_popElement
* Remove element from element stack.
* Internal to parser only.
*
*=================================================================*/
static void
Parser_popElement( IN Parser * xmlParser )
{
IXML_ElementStack *pCur = NULL;
IXML_NamespaceURI *pnsUri = NULL,
*pNextNS = NULL;
pCur = xmlParser->pCurElement;
if( pCur != NULL ) {
xmlParser->pCurElement = pCur->nextElement;
Parser_freeElementStackItem( pCur );
pnsUri = pCur->pNsURI;
while( pnsUri != NULL ) {
pNextNS = pnsUri->nextNsURI;
Parser_freeNsURI( pnsUri );
free( pnsUri );
pnsUri = pNextNS;
}
free( pCur );
}
}
/*================================================================
* Parser_readFileOrBuffer
* read a xml file or buffer contents into xml parser.
* Internal to parser only.
*
*=================================================================*/
static int
Parser_readFileOrBuffer( IN Parser * xmlParser,
IN const char *xmlFileName,
IN BOOL file )
{
int fileSize = 0;
int bytesRead = 0;
FILE *xmlFilePtr = NULL;
if( file ) {
xmlFilePtr = fopen( xmlFileName, "rb" );
if( xmlFilePtr == NULL ) {
return IXML_NO_SUCH_FILE;
} else {
fseek( xmlFilePtr, 0, SEEK_END );
fileSize = ftell( xmlFilePtr );
if( fileSize == 0 ) {
fclose( xmlFilePtr );
return IXML_SYNTAX_ERR;
}
xmlParser->dataBuffer = ( char * )malloc( fileSize + 1 );
if( xmlParser->dataBuffer == NULL ) {
fclose( xmlFilePtr );
return IXML_INSUFFICIENT_MEMORY;
}
fseek( xmlFilePtr, 0, SEEK_SET );
bytesRead =
fread( xmlParser->dataBuffer, 1, fileSize, xmlFilePtr );
xmlParser->dataBuffer[bytesRead] = '\0'; // append null
fclose( xmlFilePtr );
}
} else {
xmlParser->dataBuffer = safe_strdup( xmlFileName );
if( xmlParser->dataBuffer == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
}
return IXML_SUCCESS;
}
/*================================================================
* Parser_LoadDocument
* parses a xml file and return the DOM tree.
* Internal to parser only
*
*=================================================================*/
int
Parser_LoadDocument( OUT IXML_Document ** retDoc,
IN const char *xmlFileName,
IN BOOL file )
{
int rc = IXML_SUCCESS;
Parser *xmlParser = NULL;
xmlParser = Parser_init( );
if( xmlParser == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
rc = Parser_readFileOrBuffer( xmlParser, xmlFileName, file );
if( rc != IXML_SUCCESS ) {
Parser_free( xmlParser );
return rc;
}
xmlParser->curPtr = xmlParser->dataBuffer;
rc = Parser_parseDocument( retDoc, xmlParser );
return rc;
}
/*================================================================
* isTopLevelElement
* decides whether we have top level element already.
* Internal to parser only.
*
*=================================================================*/
static int
isTopLevelElement( IN Parser * xmlParser )
{
assert( xmlParser );
return ( xmlParser->pCurElement == NULL );
}
/*================================================================
* isDuplicateAttribute
* Decide whether the new attribute is the same as an
* existing one.
* Internal to parser only.
*
*=================================================================*/
static int
isDuplicateAttribute( IN Parser * xmlParser,
IN IXML_Node * newAttrNode )
{
IXML_Node *elementNode = NULL;
IXML_Node *attrNode = NULL;
elementNode = xmlParser->currentNodePtr;
attrNode = elementNode->firstAttr;
while( attrNode != NULL ) {
if( strcmp( attrNode->nodeName, newAttrNode->nodeName ) == 0 ) {
return TRUE;
}
attrNode = attrNode->nextSibling;
}
return FALSE;
}
/*================================================================
* Parser_processAttributeName
* processes the attribute name.
* Internal to parser only.
*
*=================================================================*/
static int
Parser_processAttributeName( IN IXML_Document * rootDoc,
IN Parser * xmlParser,
IN IXML_Node * newNode )
{
IXML_Attr *attr = NULL;
int rc = IXML_SUCCESS;
if( isDuplicateAttribute( xmlParser, newNode ) == TRUE ) {
return IXML_SYNTAX_ERR;
}
rc = ixmlDocument_createAttributeEx( rootDoc, newNode->nodeName,
&attr );
if( rc != IXML_SUCCESS ) {
return rc;
}
rc = ixmlNode_setNodeProperties( ( IXML_Node * ) attr, newNode );
if( rc != IXML_SUCCESS ) {
return rc;
}
rc = ixmlElement_setAttributeNode( ( IXML_Element * ) xmlParser->
currentNodePtr, attr, NULL );
return rc;
}
/*================================================================
* Parser_processElementName
* Processes element name
* Internal to parser only.
*
*=================================================================*/
static int
Parser_processElementName( IN IXML_Document * rootDoc,
IN Parser * xmlParser,
IN IXML_Node * newNode )
{
IXML_Element *newElement = NULL;
char *nsURI = NULL;
int rc = IXML_SUCCESS;
if( xmlParser->bHasTopLevel == TRUE ) {
if( isTopLevelElement( xmlParser ) == TRUE ) {
return IXML_SYNTAX_ERR;
}
} else {
xmlParser->bHasTopLevel = TRUE;
}
xmlParser->savePtr = xmlParser->curPtr;
rc = ixmlDocument_createElementEx( rootDoc, newNode->nodeName,
&newElement );
if( rc != IXML_SUCCESS ) {
return rc;
}
rc = ixmlNode_setNodeProperties( ( IXML_Node * ) newElement, newNode );
if( rc != IXML_SUCCESS ) {
ixmlElement_free( newElement );
return rc;
}
if( newNode->prefix != NULL ) { // element has namespace prefix
if( Parser_ElementPrefixDefined( xmlParser, newNode, &nsURI ) !=
TRUE ) {
// read next node to see whether it includes namespace definition
xmlParser->pNeedPrefixNode = ( IXML_Node * ) newElement;
} else { // fill in the namespace
Parser_setElementNamespace( newElement, nsURI );
}
} else // does element has default namespace
{
// the node may have default namespace definition
if( Parser_hasDefaultNamespace( xmlParser, newNode, &nsURI ) ==
TRUE ) {
Parser_setElementNamespace( newElement, nsURI );
} else if( xmlParser->state == eATTRIBUTE ) {
// the default namespace maybe defined later
xmlParser->pNeedPrefixNode = ( IXML_Node * ) newElement;
}
}
rc = ixmlNode_appendChild( xmlParser->currentNodePtr,
( IXML_Node * ) newElement );
if( rc != IXML_SUCCESS ) {
ixmlElement_free( newElement );
return rc;
}
xmlParser->currentNodePtr = ( IXML_Node * ) newElement;
// push element to stack
rc = Parser_pushElement( xmlParser, ( IXML_Node * ) newElement );
return rc;
}
/*================================================================
* Parser_eTagVerification
* Verifies endof element tag is the same as the openning
* element tag.
* Internal to parser only.
*
*=================================================================*/
static int
Parser_eTagVerification( IN Parser * xmlParser,
IN IXML_Node * newNode )
{
assert( newNode->nodeName );
assert( xmlParser->currentNodePtr );
if( newNode->nodeType == eELEMENT_NODE ) {
if( Parser_isValidEndElement( xmlParser, newNode ) == TRUE ) {
Parser_popElement( xmlParser );
} else { // syntax error
return IXML_SYNTAX_ERR;
}
}
if( strcmp( newNode->nodeName, xmlParser->currentNodePtr->nodeName ) ==
0 ) {
xmlParser->currentNodePtr = xmlParser->currentNodePtr->parentNode;
} else {
return IXML_SYNTAX_ERR;
}
return IXML_SUCCESS;
}
/*================================================================
* Parser_freeNodeContent
* frees a node contents
* Internal to parser only.
*
*=================================================================*/
void
Parser_freeNodeContent( IN IXML_Node * nodeptr )
{
if( nodeptr == NULL ) {
return;
}
if( nodeptr->nodeName != NULL ) {
free( nodeptr->nodeName );
}
if( nodeptr->nodeValue != NULL ) {
free( nodeptr->nodeValue );
}
if( nodeptr->namespaceURI != NULL ) {
free( nodeptr->namespaceURI );
}
if( nodeptr->prefix != NULL ) {
free( nodeptr->prefix );
}
if( nodeptr->localName != NULL ) {
free( nodeptr->localName );
}
}
/*================================================================
* Parser_parseDocument
* Parses the xml file and returns the DOM document tree.
* External function.
*
*=================================================================*/
static int
Parser_parseDocument( OUT IXML_Document ** retDoc,
IN Parser * xmlParser )
{
IXML_Document *gRootDoc = NULL;
IXML_Node newNode;
BOOL bETag = FALSE;
IXML_Node *tempNode = NULL;
int rc = IXML_SUCCESS;
IXML_CDATASection *cdataSecNode = NULL;
ixmlNode_init( &newNode );
rc = ixmlDocument_createDocumentEx( &gRootDoc );
if( rc != IXML_SUCCESS ) {
goto ErrorHandler;
}
xmlParser->currentNodePtr = ( IXML_Node * ) gRootDoc;
rc = Parser_skipProlog( xmlParser );
if( rc != IXML_SUCCESS ) {
goto ErrorHandler;
}
while( bETag == FALSE ) {
// clear the newNode contents
ixmlNode_init( &newNode );
if( Parser_getNextNode( xmlParser, &newNode, &bETag ) ==
IXML_SUCCESS ) {
if( bETag == FALSE ) {
switch ( newNode.nodeType ) {
case eELEMENT_NODE:
rc = Parser_processElementName( gRootDoc,
xmlParser,
&newNode );
if( rc != IXML_SUCCESS ) {
goto ErrorHandler;
}
break;
case eTEXT_NODE:
rc = ixmlDocument_createTextNodeEx( gRootDoc,
newNode.
nodeValue,
&tempNode );
if( rc != IXML_SUCCESS ) {
goto ErrorHandler;
}
rc = ixmlNode_appendChild( xmlParser->
currentNodePtr,
tempNode );
if( rc != IXML_SUCCESS ) {
goto ErrorHandler;
}
break;
case eCDATA_SECTION_NODE:
rc = ixmlDocument_createCDATASectionEx( gRootDoc,
newNode.
nodeValue,
&cdataSecNode );
if( rc != IXML_SUCCESS ) {
goto ErrorHandler;
}
rc = ixmlNode_appendChild( xmlParser->
currentNodePtr,
&( cdataSecNode->n ) );
if( rc != IXML_SUCCESS ) {
goto ErrorHandler;
}
break;
case eATTRIBUTE_NODE:
rc = Parser_processAttributeName( gRootDoc,
xmlParser,
&newNode );
if( rc != IXML_SUCCESS ) {
goto ErrorHandler;
}
break;
default:
break;
}
} else // ETag==TRUE, endof element tag.
{
rc = Parser_eTagVerification( xmlParser, &newNode );
if( rc != IXML_SUCCESS ) {
goto ErrorHandler;
}
xmlParser->state = eCONTENT;
}
// reset bETag flag
bETag = FALSE;
} else if( bETag == TRUE ) { // file is done
break;
} else {
rc = IXML_FAILED;
goto ErrorHandler;
}
Parser_freeNodeContent( &newNode );
}
if( xmlParser->pCurElement != NULL ) {
rc = IXML_SYNTAX_ERR;
goto ErrorHandler;
}
*retDoc = ( IXML_Document * ) gRootDoc;
Parser_free( xmlParser );
return rc;
ErrorHandler:
Parser_freeNodeContent( &newNode );
ixmlDocument_free( gRootDoc );
Parser_free( xmlParser );
return rc;
}
/*==============================================================================*
* Parser_setLastElem
* set the last element to be the given string.
* Internal to parser only.
*
*===============================================================================*/
static int
Parser_setLastElem( IN Parser * xmlParser,
IN const char *s )
{
int rc;
if( ( xmlParser == NULL ) || ( s == NULL ) ) {
return IXML_FAILED;
}
rc = ixml_membuf_assign_str( &( xmlParser->lastElem ), s );
return rc;
}
/*==============================================================================*
*
* Parser_clearTokenBuf
* clear token buffer.
* Internal to parser only.
*
*===============================================================================*/
static void
Parser_clearTokenBuf( IN Parser * xmlParser )
{
ixml_membuf_destroy( &( xmlParser->tokenBuf ) );
}
/*==============================================================================*
*
* Parser_appendTokBufStr
* Appends string s to token buffer
* Internal to parser only.
*
*===============================================================================*/
static int
Parser_appendTokBufStr( IN Parser * xmlParser,
IN const char *s )
{
int rc = IXML_SUCCESS;
if( s != NULL ) {
rc = ixml_membuf_append_str( &( xmlParser->tokenBuf ), s );
}
return rc;
}
/*==============================================================================*
*
* Parser_appendTokBufChar
* Appends c to token buffer.
* Internal to parser only.
*
*===============================================================================*/
static int
Parser_appendTokBufChar( IN Parser * xmlParser,
IN char c )
{
int rc;
rc = ixml_membuf_append( &( xmlParser->tokenBuf ), &c );
return rc;
}
/*==============================================================================*
*
* Parser_skipWhiteSpaces
* skip white spaces
* Internal to parser only
*
*===============================================================================*/
static void
Parser_skipWhiteSpaces( IN Parser * xmlParser )
{
while( ( *( xmlParser->curPtr ) != 0 ) &&
( strchr( WHITESPACE, *( xmlParser->curPtr ) ) != NULL ) ) {
xmlParser->curPtr++;
}
}
/*==============================================================================*
* Parser_getChar
* returns next char value and its length
* Internal to parser only
*
*===============================================================================*/
static int
Parser_getChar( IN const char *src,
INOUT int *cLen )
{
const char *pnum;
int sum;
char c;
int i;
if( src == NULL || cLen == NULL ) {
return -1;
}
*cLen = 0;
if( *src != '&' ) {
if( *src > 0 && Parser_isXmlChar( *src ) ) {
*cLen = 1;
return *src;
}
i = Parser_UTF8ToInt( src, cLen );
if( !Parser_isXmlChar( i ) ) {
return ( g_error_char ? g_error_char : -1 );
}
return i;
} else if( strncasecmp( src, QUOT, strlen( QUOT ) ) == 0 ) {
*cLen = strlen( QUOT );
return '"';
} else if( strncasecmp( src, LT, strlen( LT ) ) == 0 ) {
*cLen = strlen( LT );
return '<';
} else if( strncasecmp( src, GT, strlen( GT ) ) == 0 ) {
*cLen = strlen( GT );
return '>';
} else if( strncasecmp( src, APOS, strlen( APOS ) ) == 0 ) {
*cLen = strlen( APOS );
return '\'';
} else if( strncasecmp( src, AMP, strlen( AMP ) ) == 0 ) {
*cLen = strlen( AMP );
return '&';
} else if( strncasecmp( src, ESC_HEX, strlen( ESC_HEX ) ) == 0 ) { // Read in escape characters of type &#xnn where nn is a hexadecimal value
pnum = src + strlen( ESC_HEX );
sum = 0;
while( strchr( HEX_NUMBERS, *pnum ) != 0 ) {
c = *pnum;
if( c <= '9' ) {
sum = sum * 16 + ( c - '0' );
} else if( c <= 'F' ) {
sum = sum * 16 + ( c - 'A' + 10 );
} else {
sum = sum * 16 + ( c - 'a' + 10 );
}
pnum++;
}
if( ( pnum == src ) || *pnum != ';' || !Parser_isXmlChar( sum ) ) {
goto fail_entity;
}
*cLen = pnum - src + 1;
return sum;
} else if( strncasecmp( src, ESC_DEC, strlen( ESC_DEC ) ) == 0 ) {
// Read in escape characters of type &#nn where nn is a decimal value
pnum = src + strlen( ESC_DEC );
sum = 0;
while( strchr( DEC_NUMBERS, *pnum ) != 0 ) {
sum = sum * 10 + ( *pnum - '0' );
pnum++;
}
if( ( pnum == src ) || *pnum != ';' || !Parser_isXmlChar( sum ) ) {
goto fail_entity;
}
*cLen = pnum - src + 1;
return sum;
}
fail_entity:
if (g_error_char) {
*cLen = 1;
return '&';
}
return -1;
}
/*==============================================================================*
* Parser_copyToken
* copy string in src into xml parser token buffer
* Internal to parser only.
*
*===============================================================================*/
static int
Parser_copyToken( IN Parser * xmlParser,
IN const char *src,
IN int len )
{
int i,
c,
cl;
const char *psrc,
*pend;
utf8char uch;
if( !src || len <= 0 ) {
return IXML_FAILED;
}
psrc = src;
pend = src + len;
while( psrc < pend ) {
if( ( c = Parser_getChar( psrc, &cl ) ) <= 0 ) {
return IXML_FAILED;
}
if( cl == 1 ) {
Parser_appendTokBufChar( xmlParser, ( char )c );
psrc++;
} else {
i = Parser_intToUTF8( c, uch );
if( i == 0 ) {
return IXML_FAILED;
}
Parser_appendTokBufStr( xmlParser, uch );
psrc += cl;
}
}
if( psrc > pend ) {
return IXML_FAILED;
} else {
return IXML_SUCCESS; // success
}
}
/*==============================================================================*
*
* Parser_skipString
* Skips all characters in the string until it finds the skip key.
* Then it skips the skip key and returns.
* Internal to parser only
*
*===============================================================================*/
static int
Parser_skipString( INOUT char **pstrSrc,
IN const char *strSkipKey )
{
if( !( *pstrSrc ) || !strSkipKey ) {
return IXML_FAILED;
}
while( ( **pstrSrc )
&& strncmp( *pstrSrc, strSkipKey,
strlen( strSkipKey ) ) != 0 ) {
( *pstrSrc )++;
}
if( **pstrSrc == '\0' ) {
return IXML_SYNTAX_ERR;
}
*pstrSrc = *pstrSrc + strlen( strSkipKey );
return IXML_SUCCESS; //success
}
/*==============================================================================*
*
* Function:
* Returns:
*
*
*===============================================================================*/
static int
Parser_skipPI( INOUT char **pSrc )
{
char *pEnd = NULL;
assert( *pSrc );
if( *pSrc == NULL ) {
return IXML_FAILED;
}
if( ( strncasecmp( *pSrc, ( char * )XMLDECL, strlen( XMLDECL ) ) == 0 ) || ( strncasecmp( *pSrc, ( char * )XMLDECL2, strlen( XMLDECL2 ) ) == 0 ) ) { // not allowed
return IXML_SYNTAX_ERR;
}
if( strncasecmp( *pSrc, ( char * )BEGIN_PI, strlen( BEGIN_PI ) ) == 0 ) {
pEnd = strstr( *pSrc, END_PI );
if( ( pEnd != NULL ) && ( pEnd != *pSrc ) ) {
*pSrc = pEnd + strlen( BEGIN_PI );
} else {
return IXML_SYNTAX_ERR;
}
}
return IXML_SUCCESS;
}
/*==============================================================================*
* Parser_skipXMLDecl:
* skips XML declarations.
* Internal only to parser.
*
*===============================================================================*/
static int
Parser_skipXMLDecl( INOUT Parser * xmlParser )
{
int rc = IXML_FAILED;
assert( xmlParser );
if( xmlParser == NULL ) {
return rc;
}
rc = Parser_skipString( &( xmlParser->curPtr ), END_PI );
Parser_skipWhiteSpaces( xmlParser );
return rc;
}
/*==============================================================================*
* Parser_skipProlog
* skip prolog
* Internal to parser only.
*
*===============================================================================*/
static int
Parser_skipProlog( INOUT Parser * xmlParser )
{
int rc = IXML_SUCCESS;
assert( xmlParser != NULL );
if( xmlParser == NULL ) {
return IXML_FAILED;
}
Parser_skipWhiteSpaces( xmlParser );
if( strncmp( xmlParser->curPtr, ( char * )XMLDECL, strlen( XMLDECL ) ) == 0 ) { // <?xml
rc = Parser_skipXMLDecl( xmlParser );
if( rc != IXML_SUCCESS ) {
return rc;
}
}
rc = Parser_skipMisc( xmlParser );
if( ( rc == IXML_SUCCESS ) && strncmp( xmlParser->curPtr, ( char * )BEGIN_DOCTYPE, strlen( BEGIN_DOCTYPE ) ) == 0 ) { // <! DOCTYPE
xmlParser->curPtr++;
rc = Parser_skipDocType( &( xmlParser->curPtr ) );
}
if( rc == IXML_SUCCESS ) {
rc = Parser_skipMisc( xmlParser );
}
return rc;
}
/*==============================================================================*
*
* Function:
* Returns:
* Skips all characters in the string until it finds the skip key.
* Then it skips the skip key and returns.
*
*===============================================================================*/
static int
Parser_skipComment( INOUT char **pstrSrc )
{
char *pStrFound = NULL;
assert( ( *pstrSrc ) != NULL );
if( *pstrSrc == NULL ) {
return IXML_FAILED;
}
pStrFound = strstr( *pstrSrc, END_COMMENT );
if( ( pStrFound != NULL ) && ( pStrFound != *pstrSrc ) &&
( *( pStrFound - 1 ) != '-' ) ) {
*pstrSrc = pStrFound + strlen( END_COMMENT );
} else {
return IXML_SYNTAX_ERR;
}
return IXML_SUCCESS;
}
/*==============================================================================*
* Parser_skipDocType
* skips document type declaration
*
*===============================================================================*/
static int
Parser_skipDocType( INOUT char **pstr )
{
char *pCur = *pstr;
char *pNext = NULL; // default there is no nested <
int num = 1;
assert( ( *pstr ) != NULL );
if( *pstr == NULL ) {
return IXML_FAILED;
}
while( ( pCur != NULL ) && ( num != 0 ) && ( *pCur != 0 ) ) {
if( *pCur == '<' ) {
num++;
} else if( *pCur == '>' ) {
num--;
} else if( *pCur == '"' ) {
pNext = strchr( pCur + 1, '"' );
if( pNext == NULL ) {
return IXML_SYNTAX_ERR;
}
pCur = pNext;
}
pCur++;
}
if( num == 0 ) {
*pstr = pCur;
return IXML_SUCCESS;
} else {
return IXML_SYNTAX_ERR;
}
}
/*==============================================================================*
*
* Parser_skipMisc:
* skip comment, PI and white space
*
*
*===============================================================================*/
static int
Parser_skipMisc( IN Parser * xmlParser )
{
int rc = IXML_SUCCESS;
int done = FALSE;
while( ( done == FALSE ) && ( rc == IXML_SUCCESS ) ) {
if( strncasecmp( xmlParser->curPtr, ( char * )BEGIN_COMMENT, strlen( BEGIN_COMMENT ) ) == 0 ) { // <!--
rc = Parser_skipComment( &( xmlParser->curPtr ) );
} else if( ( strncasecmp( xmlParser->curPtr, ( char * )XMLDECL, strlen( XMLDECL ) ) == 0 ) || ( strncasecmp( xmlParser->curPtr, ( char * )XMLDECL2, strlen( XMLDECL2 ) ) == 0 ) ) { // <?xml or <?xml?
rc = IXML_SYNTAX_ERR;
} else if( strncasecmp( xmlParser->curPtr, ( char * )BEGIN_PI, strlen( BEGIN_PI ) ) == 0 ) { // <?
rc = Parser_skipString( &( xmlParser->curPtr ), END_PI );
} else {
done = TRUE;
}
Parser_skipWhiteSpaces( xmlParser );
}
return rc;
}
/*==============================================================================*
*
* Parser_getNextToken
* return the length of next token in tokenBuff
*
*
*===============================================================================*/
static int
Parser_getNextToken( IN Parser * xmlParser )
{
int tokenLength = 0;
int temp,
tlen;
int rc;
Parser_clearTokenBuf( xmlParser );
if( *( xmlParser->curPtr ) == '\0' ) {
return 0;
}
// skip XML instructions
rc = Parser_skipMisc( xmlParser );
if( rc != IXML_SUCCESS ) {
return 0;
}
// Attribute value logic must come first, since all text untokenized until end-quote
if( *( xmlParser->curPtr ) == QUOTE ) {
tokenLength = 1;
} else if( *( xmlParser->curPtr ) == SINGLEQUOTE ) {
tokenLength = 1;
} else if( *( xmlParser->curPtr ) == LESSTHAN ) { // Check for start tags
temp = Parser_UTF8ToInt( xmlParser->curPtr + 1, &tlen );
if( temp == '/' ) {
tokenLength = 2; // token is '</' end tag
} else if( Parser_isNameChar( temp, FALSE ) == TRUE ) {
tokenLength = 1; // '<' found, so return '<' token
} else {
return 0; //error
}
} else if( *( xmlParser->curPtr ) == EQUALS ) { // Check for '=' token, return it as a token
tokenLength = 1;
} else if( *( xmlParser->curPtr ) == SLASH ) {
if( *( xmlParser->curPtr + 1 ) == GREATERTHAN ) { // token '/>' found
tokenLength = 2;
xmlParser->savePtr = xmlParser->curPtr; // fix
}
} else if( *( xmlParser->curPtr ) == GREATERTHAN ) { // > found, so return it as a token
tokenLength = 1;
} else if( Parser_isNameChar( Parser_UTF8ToInt( xmlParser->curPtr, &tlen ), FALSE ) ) { // Check for name tokens, name found, so find out how long it is
int iIndex = tlen;
while( Parser_isNameChar
( Parser_UTF8ToInt( xmlParser->curPtr + iIndex, &tlen ),
TRUE ) ) {
iIndex += tlen;
}
tokenLength = iIndex;
} else {
return 0;
}
// Copy the token to the return string
if( Parser_copyToken( xmlParser, xmlParser->curPtr, tokenLength ) !=
IXML_SUCCESS ) {
return 0;
}
xmlParser->curPtr += tokenLength;
return tokenLength;
}
/*==============================================================================*
*
* Parser_getNameSpace
* return the namespce as defined as prefix.
* Internal to parser only
*
*===============================================================================*/
static char *
Parser_getNameSpace( IN Parser * xmlParser,
IN const char *prefix )
{
IXML_ElementStack *pCur;
IXML_NamespaceURI *pNsUri;
pCur = xmlParser->pCurElement;
if( strcmp( pCur->prefix, prefix ) != 0 ) {
pNsUri = pCur->pNsURI;
while( pNsUri != NULL ) {
if( strcmp( pNsUri->prefix, prefix ) == 0 ) {
return pNsUri->nsURI;
}
pNsUri = pNsUri->nextNsURI;
}
} else {
return pCur->namespaceUri;
}
return NULL;
}
/*==============================================================================*
*
* Parser_addNamespace
* Add a namespace definition
* Internal to parser only
*
*===============================================================================*/
static int
Parser_addNamespace( IN Parser * xmlParser )
{
IXML_Node *pNode;
IXML_ElementStack *pCur;
const char *namespaceUri;
pNode = xmlParser->pNeedPrefixNode;
pCur = xmlParser->pCurElement;
if( pNode->prefix == NULL ) { // element does not have prefix
if( strcmp( pNode->nodeName, pCur->element ) != 0 ) {
return IXML_FAILED;
}
if( pCur->namespaceUri != NULL ) {
// it would be wrong that pNode->namespace != NULL.
assert( pNode->namespaceURI == NULL );
pNode->namespaceURI = safe_strdup( pCur->namespaceUri );
if( pNode->namespaceURI == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
}
xmlParser->pNeedPrefixNode = NULL;
} else {
if( ( strcmp( pNode->nodeName, pCur->element ) != 0 ) &&
( strcmp( pNode->prefix, pCur->prefix ) != 0 ) ) {
return IXML_FAILED;
}
namespaceUri = Parser_getNameSpace( xmlParser, pCur->prefix );
if( namespaceUri != NULL ) {
pNode->namespaceURI = safe_strdup( namespaceUri );
if( pNode->namespaceURI == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
xmlParser->pNeedPrefixNode = NULL;
}
}
return IXML_SUCCESS;
}
/*==============================================================================*
*
* Parser_setNodePrefixAndLocalName
* set the node prefix and localName as defined by the nodeName
* in the form of ns:name
* Internal to parser only.
*
*===============================================================================*/
int
Parser_setNodePrefixAndLocalName( IN IXML_Node * node )
{
char *pStrPrefix = NULL;
char *pLocalName;
int nPrefix;
assert( node != NULL );
if( node == NULL ) {
return IXML_FAILED;
}
pStrPrefix = strchr( node->nodeName, ':' );
if( pStrPrefix == NULL ) {
node->prefix = NULL;
node->localName = safe_strdup( node->nodeName );
if( node->localName == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
} else { // fill in the local name and prefix
pLocalName = ( char * )pStrPrefix + 1;
nPrefix = pStrPrefix - node->nodeName;
node->prefix = malloc( nPrefix + 1 );
if( node->prefix == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
memset( node->prefix, 0, nPrefix + 1 );
strncpy( node->prefix, node->nodeName, nPrefix );
node->localName = safe_strdup( pLocalName );
if( node->localName == NULL ) {
free( node->prefix );
node->prefix = NULL; //no need to free really, main loop will frees it
//when return code is not success
return IXML_INSUFFICIENT_MEMORY;
}
}
return IXML_SUCCESS;
}
/*==============================================================================*
*
* Parser_xmlNamespace
* add namespace definition.
* internal to parser only.
*
*===============================================================================*/
static int
Parser_xmlNamespace( IN Parser * xmlParser,
IN IXML_Node * newNode )
{
IXML_ElementStack *pCur = xmlParser->pCurElement;
IXML_NamespaceURI *pNewNs = NULL,
*pNs = NULL,
*pPrevNs = NULL;
int rc;
// if the newNode contains a namespace definition
assert( newNode->nodeName != NULL );
if( strcmp( newNode->nodeName, "xmlns" ) == 0 ) // default namespace def.
{
if( pCur->namespaceUri != NULL ) {
free( pCur->namespaceUri );
}
///here it goes to segfault on "" when not copying
if(newNode->nodeValue){
pCur->namespaceUri = safe_strdup( newNode->nodeValue );
if( pCur->namespaceUri == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
}
} else if( strncmp( newNode->nodeName, "xmlns:", strlen( "xmlns:" ) ) == 0 ) { // namespace definition
rc = Parser_setNodePrefixAndLocalName( newNode );
if( rc != IXML_SUCCESS ) {
return rc;
}
assert( newNode->localName != NULL );
if( pCur == NULL ) {
return IXML_FAILED;
}
if( ( pCur->prefix != NULL )
&& ( strcmp( pCur->prefix, newNode->localName ) == 0 ) ) {
pCur->namespaceUri = safe_strdup( newNode->nodeValue );
if( pCur->namespaceUri == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
} else {
pPrevNs = pCur->pNsURI;
pNs = pPrevNs;
while( pNs != NULL ) {
if( ( pNs->prefix != NULL ) &&
( strcmp( pNs->prefix, newNode->localName ) == 0 ) ) {
break; // replace namespace definition
} else {
pPrevNs = pNs;
pNs = pNs->nextNsURI;
}
}
if( pNs == NULL ) // a new definition
{
pNewNs =
( IXML_NamespaceURI * )
malloc( sizeof( IXML_NamespaceURI ) );
if( pNewNs == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
memset( pNewNs, 0, sizeof( IXML_NamespaceURI ) );
pNewNs->prefix = safe_strdup( newNode->localName );
if( pNewNs->prefix == NULL ) {
free( pNewNs );
return IXML_INSUFFICIENT_MEMORY;
}
pNewNs->nsURI = safe_strdup( newNode->nodeValue );
if( pNewNs->nsURI == NULL ) {
Parser_freeNsURI( pNewNs );
free( pNewNs );
return IXML_INSUFFICIENT_MEMORY;
}
if( pCur->pNsURI == NULL ) {
pCur->pNsURI = pNewNs;
} else {
pPrevNs->nextNsURI = pNewNs;
}
} else // udpate the namespace
{
if( pNs->nsURI != NULL ) {
free( pNs->nsURI );
}
pNs->nsURI = safe_strdup( newNode->nodeValue );
if( pNs->nsURI == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
}
}
}
if( xmlParser->pNeedPrefixNode != NULL ) {
rc = Parser_addNamespace( xmlParser );
return rc;
} else {
return IXML_SUCCESS;
}
}
/*==============================================================================*
*
* Parser_processSTag:
* Processes the STag as defined by XML spec.
* Internal to parser only.
*
*===============================================================================*/
static int
Parser_processSTag( IN Parser * xmlParser,
IN IXML_Node * node )
{
char *pCurToken = NULL;
int rc;
if( Parser_getNextToken( xmlParser ) == 0 ) {
return IXML_SYNTAX_ERR;
}
pCurToken = ( xmlParser->tokenBuf ).buf;
if( pCurToken != NULL ) {
node->nodeName = safe_strdup( pCurToken );
if( node->nodeName == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
} else {
return IXML_SYNTAX_ERR;
}
rc = Parser_setLastElem( xmlParser, node->nodeName );
if( rc != IXML_SUCCESS ) { // no need to free node->nodeName, main loop will free it
return IXML_FAILED;
}
rc = Parser_setNodePrefixAndLocalName( node );
if( rc != IXML_SUCCESS ) { // no need to free node->nodeName, main loop will free it
return IXML_FAILED;
}
node->nodeValue = NULL;
node->nodeType = eELEMENT_NODE;
xmlParser->savePtr = xmlParser->curPtr;
if( Parser_getNextToken( xmlParser ) == 0 ) { // no need to free node->nodeName, main loop will free it
return IXML_SYNTAX_ERR;
}
pCurToken = ( xmlParser->tokenBuf ).buf;
// check to see what is the next token
if( strcmp( pCurToken, "/>" ) == 0 ) // empty element
{
xmlParser->state = eELEMENT;
xmlParser->curPtr = xmlParser->savePtr; // backup to />
} else if( strcmp( pCurToken, ">" ) == 0 ) // expecting text node
{
xmlParser->state = eCONTENT;
} else {
xmlParser->state = eATTRIBUTE;
xmlParser->curPtr = xmlParser->savePtr;
}
return IXML_SUCCESS;
}
/*==============================================================================*
*
* Parser_hasDefaultNamespace
* decide whether the current element has default namespace
* Internal to parser only.
*
*===============================================================================*/
static BOOL
Parser_hasDefaultNamespace( IN Parser * xmlParser,
IN IXML_Node * newNode,
IN char **nsURI )
{
IXML_ElementStack *pCur = xmlParser->pCurElement;
while( pCur != NULL ) {
if( ( pCur->prefix == NULL ) && ( pCur->namespaceUri != NULL ) ) {
*nsURI = pCur->namespaceUri;
return TRUE;
} else {
pCur = pCur->nextElement;
}
}
return FALSE;
}
/*==============================================================================*
*
* Parser_ElementPrefixDefined
* decides whether element's prefix is already defined.
* Internal to parser only.
*
*===============================================================================*/
static BOOL
Parser_ElementPrefixDefined( IN Parser * xmlParser,
IN IXML_Node * newNode,
IN char **nsURI )
{
IXML_ElementStack *pCur = xmlParser->pCurElement;
IXML_NamespaceURI *pNsUri;
while( pCur != NULL ) {
if( ( pCur->prefix != NULL )
&& ( strcmp( pCur->prefix, newNode->prefix ) == 0 ) ) {
*nsURI = pCur->namespaceUri;
return TRUE;
} else {
pNsUri = pCur->pNsURI;
while( pNsUri != NULL ) {
if( strcmp( pNsUri->prefix, newNode->prefix ) == 0 ) {
*nsURI = pNsUri->nsURI;
return TRUE;
} else {
pNsUri = pNsUri->nextNsURI;
}
}
}
pCur = pCur->nextElement;
}
return FALSE;
}
/*==============================================================================*
*
* Parser_processCDSect
* Processes CDSection as defined by XML spec.
* Internal to parser only.
*
*===============================================================================*/
static int
Parser_processCDSect( IN char **pSrc,
IN IXML_Node * node )
{
char *pEnd;
int tokenLength = 0;
char *pCDataStart;
if( *pSrc == NULL ) {
return IXML_FAILED;
}
pCDataStart = *pSrc + strlen( CDSTART );
pEnd = pCDataStart;
while( ( Parser_isXmlChar( *pEnd ) == TRUE ) && ( *pEnd != '\0' ) ) {
if( strncmp( pEnd, CDEND, strlen( CDEND ) ) == 0 ) {
break;
} else {
pEnd++;
}
}
if( ( pEnd - pCDataStart > 0 ) && ( *pEnd != '\0' ) ) {
tokenLength = pEnd - pCDataStart;
node->nodeValue = ( char * )malloc( tokenLength + 1 );
if( node->nodeValue == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
strncpy( node->nodeValue, pCDataStart, tokenLength );
node->nodeValue[tokenLength] = '\0';
node->nodeName = safe_strdup( CDATANODENAME );
if( node->nodeName == NULL ) {
// no need to free node->nodeValue at all, bacause node contents
// will be freed by the main loop.
return IXML_INSUFFICIENT_MEMORY;
}
node->nodeType = eCDATA_SECTION_NODE;
*pSrc = pEnd + strlen( CDEND );
return IXML_SUCCESS;
} else {
return IXML_SYNTAX_ERR;
}
}
/*==============================================================================*
*
* Parser_setElementNamespace
* set element's namespace
* Internal to parser only.
*
*===============================================================================*/
static int
Parser_setElementNamespace( IN IXML_Element * newElement,
IN const char *nsURI )
{
if( newElement != NULL ) {
if( newElement->n.namespaceURI != NULL ) {
return IXML_SYNTAX_ERR;
} else {
( newElement->n ).namespaceURI = safe_strdup( nsURI );
if( ( newElement->n ).namespaceURI == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
}
}
return IXML_SUCCESS;
}
/*==============================================================================*
*
* Parser_processContent
* processes the CONTENT as defined in XML spec.
* Internal to parser only
*
*===============================================================================*/
static int
Parser_processContent( IN Parser * xmlParser,
IN IXML_Node * node )
{
char *pEndContent;
BOOL bReadContent;
int tokenLength;
char *notAllowed = "]]>";
char *pCurToken = NULL;
// save pointer for backup
xmlParser->savePtr = xmlParser->curPtr;
Parser_skipWhiteSpaces( xmlParser );
if( *( xmlParser->curPtr ) == '\0' ) { // end of file is reached
return IXML_SUCCESS;
}
pEndContent = xmlParser->curPtr;
if( *pEndContent == LESSTHAN ) {
if( strncmp( pEndContent, ( char * )CDSTART, strlen( CDSTART ) ) ==
0 ) {
if( Parser_processCDSect( &pEndContent, node ) !=
IXML_SUCCESS ) {
return IXML_SYNTAX_ERR;
} else {
xmlParser->curPtr = pEndContent;
}
} else
if( strncmp
( pEndContent, ( char * )BEGIN_COMMENT,
strlen( BEGIN_COMMENT ) ) == 0 ) {
if( Parser_skipComment( &pEndContent ) != IXML_SUCCESS ) {
return IXML_SYNTAX_ERR;
} else {
xmlParser->curPtr = pEndContent;
}
} else
if( strncmp
( pEndContent, ( char * )BEGIN_PI,
strlen( BEGIN_PI ) ) == 0 ) {
if( Parser_skipPI( &pEndContent ) != IXML_SUCCESS ) {
return IXML_SYNTAX_ERR;
} else {
xmlParser->curPtr = pEndContent;
}
} else // empty content
{
xmlParser->state = eELEMENT;
}
} else {
// backup
xmlParser->curPtr = xmlParser->savePtr;
pEndContent = xmlParser->curPtr;
while( ( *pEndContent != LESSTHAN ) &&
( strncmp
( pEndContent, ( const char * )notAllowed,
strlen( notAllowed ) ) != 0 ) && *pEndContent ) {
pEndContent++;
}
if( *pEndContent == '\0' ) {
bReadContent = FALSE;
}
if( strncmp
( pEndContent, ( const char * )notAllowed,
strlen( notAllowed ) ) == 0 ) {
return IXML_SYNTAX_ERR;
}
tokenLength = pEndContent - xmlParser->curPtr;
Parser_clearTokenBuf( xmlParser );
if( Parser_copyToken( xmlParser, xmlParser->curPtr, tokenLength )
!= IXML_SUCCESS ) {
return IXML_SYNTAX_ERR;
}
pCurToken = ( xmlParser->tokenBuf ).buf;
if( pCurToken != NULL ) {
node->nodeValue = safe_strdup( pCurToken );
if( node->nodeValue == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
} else {
return IXML_SYNTAX_ERR;
}
node->nodeName = safe_strdup( TEXTNODENAME );
if( node->nodeName == NULL ) {
return IXML_SYNTAX_ERR;
}
node->nodeType = eTEXT_NODE;
// adjust curPtr
xmlParser->curPtr += tokenLength;
}
return IXML_SUCCESS;
}
/*==============================================================================*
*
* Parser_processETag
* process ETag as defined by XML spec.
* Internal to parser only.
*
*===============================================================================*/
static int
Parser_processETag( IN Parser * xmlParser,
IN IXML_Node * node,
OUT BOOL * bETag )
{
char *pCurToken = NULL;
assert( xmlParser != NULL );
if( Parser_getNextToken( xmlParser ) == 0 ) {
return IXML_SYNTAX_ERR;
}
pCurToken = ( xmlParser->tokenBuf ).buf;
if( pCurToken == NULL ) {
return IXML_SYNTAX_ERR;
}
node->nodeName = safe_strdup( pCurToken );
if( node->nodeName == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
node->nodeValue = NULL;
node->nodeType = eELEMENT_NODE;
Parser_skipWhiteSpaces( xmlParser );
// read the >
if( Parser_getNextToken( xmlParser ) == 0 ) {
return IXML_SYNTAX_ERR;
}
pCurToken = ( xmlParser->tokenBuf ).buf;
if( pCurToken == NULL ) { // no need to free node->nodeName, it is freed by main loop
return IXML_SYNTAX_ERR;
}
if( strcmp( pCurToken, ">" ) != 0 ) {
return IXML_SYNTAX_ERR;
}
*bETag = TRUE;
return IXML_SUCCESS;
}
/*==============================================================================*
*
* Parser_freeElementStackItem
* frees one ElementStack item.
* Internal to parser only.
*
*===============================================================================*/
static void
Parser_freeElementStackItem( IN IXML_ElementStack * pItem )
{
assert( pItem != NULL );
if( pItem->element != NULL ) {
free( pItem->element );
pItem->element = NULL;
}
if( pItem->namespaceUri != NULL ) {
free( pItem->namespaceUri );
pItem->namespaceUri = NULL;
}
if( pItem->prefix != NULL ) {
free( pItem->prefix );
pItem->prefix = NULL;
}
}
/*==============================================================================*
*
* Parser_freeNsURI
* frees namespaceURI item.
* Internal to parser only.
*
*===============================================================================*/
static void
Parser_freeNsURI( IN IXML_NamespaceURI * pNsURI )
{
assert( pNsURI != NULL );
if( pNsURI->nsURI != NULL ) {
free( pNsURI->nsURI );
}
if( pNsURI->prefix != NULL ) {
free( pNsURI->prefix );
}
}
/*==============================================================================*
*
* Parser_free
* frees all temporary memory allocated by xmlparser.
* Internal to parser only
*
*
*===============================================================================*/
static void
Parser_free( IN Parser * xmlParser )
{
IXML_ElementStack *pElement,
*pNextElement;
IXML_NamespaceURI *pNsURI,
*pNextNsURI;
if( xmlParser == NULL ) {
return;
}
if( xmlParser->dataBuffer != NULL ) {
free( xmlParser->dataBuffer );
}
ixml_membuf_destroy( &( xmlParser->tokenBuf ) );
ixml_membuf_destroy( &( xmlParser->lastElem ) );
pElement = xmlParser->pCurElement;
while( pElement != NULL ) {
Parser_freeElementStackItem( pElement );
pNsURI = pElement->pNsURI;
while( pNsURI != NULL ) {
pNextNsURI = pNsURI->nextNsURI;
Parser_freeNsURI( pNsURI );
free( pNsURI );
pNsURI = pNextNsURI;
}
pNextElement = pElement->nextElement;
free( pElement );
pElement = pNextElement;
}
free( xmlParser );
}
/*==============================================================================*
*
* Parser_parseReference
* return IXML_SUCCESS or not
*
*
*===============================================================================*/
static int
Parser_parseReference( IN char *pStr )
{ // place holder for future implementation
return IXML_SUCCESS;
}
/*==============================================================================*
*
* Parser_processAttribute
* processes attribute.
* Internal to parser only.
* returns IXML_SUCCESS or failure
*
*
*===============================================================================*/
static int
Parser_processAttribute( IN Parser * xmlParser,
IN IXML_Node * node )
{
char *strEndQuote = NULL;
int tlen = 0;
char *pCur = NULL;
char *pCurToken = NULL;
assert( xmlParser );
if( xmlParser == NULL ) {
return IXML_FAILED;
}
pCurToken = ( xmlParser->tokenBuf ).buf;
if( pCurToken == NULL ) {
return IXML_SYNTAX_ERR;
}
if( Parser_isNameChar( Parser_UTF8ToInt( pCurToken, &tlen ), FALSE ) ==
FALSE ) {
return IXML_SYNTAX_ERR;
}
// copy in the attribute name
node->nodeName = safe_strdup( pCurToken );
if( node->nodeName == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
// read in the "=" sign
if( Parser_getNextToken( xmlParser ) == 0 ) {
return IXML_SYNTAX_ERR;
}
pCurToken = ( xmlParser->tokenBuf ).buf;
if( *pCurToken != EQUALS ) {
return IXML_SYNTAX_ERR;
}
// read in the single quote or double quote
if( Parser_getNextToken( xmlParser ) == 0 ) {
return IXML_SYNTAX_ERR;
}
// pCurToken is either quote or singlequote
pCurToken = ( xmlParser->tokenBuf ).buf;
if( ( *pCurToken != QUOTE ) && ( *pCurToken != SINGLEQUOTE ) ) {
return IXML_SYNTAX_ERR;
}
strEndQuote = strstr( xmlParser->curPtr, pCurToken );
if( strEndQuote == NULL ) {
return IXML_SYNTAX_ERR;
}
// check between curPtr and strEndQuote, whether there are illegal chars.
pCur = xmlParser->curPtr;
while( pCur < strEndQuote ) {
if( *pCur == '<' ) {
return IXML_SYNTAX_ERR;
}
if( *pCur == '&' ) {
Parser_parseReference( ++pCur );
}
pCur++;
}
//clear token buffer
Parser_clearTokenBuf( xmlParser );
if( strEndQuote != xmlParser->curPtr ) {
if( Parser_copyToken( xmlParser, xmlParser->curPtr,
strEndQuote - xmlParser->curPtr ) !=
IXML_SUCCESS ) {
return IXML_SYNTAX_ERR;
}
}
// skip the ending quote
xmlParser->curPtr = strEndQuote + 1;
pCurToken = ( xmlParser->tokenBuf ).buf;
if( pCurToken != NULL ) { // attribute has value, like a="c"
node->nodeValue = safe_strdup( pCurToken );
if( node->nodeValue == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
}else{
// if attribute doesn't have value, like a=""
///somewhere on other places is this copied
node->nodeValue = malloc(sizeof(char));
*(node->nodeValue) = '\0';
}
node->nodeType = eATTRIBUTE_NODE;
// check whether this is a new namespace definition
if( Parser_xmlNamespace( xmlParser, node ) != IXML_SUCCESS ) {
return IXML_FAILED;
}
// read ahead to see whether we have more attributes
xmlParser->savePtr = xmlParser->curPtr;
if( Parser_getNextToken( xmlParser ) == 0 ) {
return IXML_SYNTAX_ERR;
}
pCurToken = ( xmlParser->tokenBuf ).buf;
if( strcmp( pCurToken, "<" ) == 0 ) {
return IXML_FAILED;
} else if( strcmp( pCurToken, ">" ) != 0 ) // more attribute?
{ // backup
xmlParser->curPtr = xmlParser->savePtr;
} else {
xmlParser->state = eCONTENT;
}
return IXML_SUCCESS;
}
/*==============================================================================*
*
* Parser_getNextNode
* return next node
* returns IXML_SUCCESS or
*
*
*===============================================================================*/
static int
Parser_getNextNode( IN Parser * xmlParser,
OUT IXML_Node * node,
OUT BOOL * bETag )
{
char *pCurToken = NULL;
char *lastElement = NULL;
// endof file reached?
if( *( xmlParser->curPtr ) == '\0' ) {
*bETag = TRUE;
return IXML_FILE_DONE;
}
if( xmlParser->state == eCONTENT ) {
if( Parser_processContent( xmlParser, node ) != IXML_SUCCESS ) {
return IXML_FAILED;
}
} else {
Parser_skipWhiteSpaces( xmlParser );
if( ( Parser_getNextToken( xmlParser ) == 0 ) && ( xmlParser->pCurElement == NULL ) && ( *( xmlParser->curPtr ) == '\0' ) ) { // comments after the xml doc
return IXML_SUCCESS;
} else if( ( xmlParser->tokenBuf ).length == 0 ) {
return IXML_SYNTAX_ERR;
}
pCurToken = ( xmlParser->tokenBuf ).buf;
if( *pCurToken == GREATERTHAN ) {
return IXML_SUCCESS;
} else if( strcmp( pCurToken, ENDTAG ) == 0 ) { // we got </, read next element
return Parser_processETag( xmlParser, node, bETag );
} else if( *pCurToken == LESSTHAN ) {
return Parser_processSTag( xmlParser, node );
} else if( strcmp( pCurToken, COMPLETETAG ) == 0 ) {
lastElement = ( xmlParser->lastElem ).buf;
if( lastElement == NULL ) {
goto ErrorHandler;
}
node->nodeName = safe_strdup( lastElement );
if( node->nodeName == NULL ) {
return IXML_INSUFFICIENT_MEMORY;
}
node->nodeType = eELEMENT_NODE;
*bETag = TRUE;
return IXML_SUCCESS;
} else if( (xmlParser->state == eATTRIBUTE) &&
(xmlParser->pCurElement != NULL) ) {
if( Parser_processAttribute( xmlParser, node ) !=
IXML_SUCCESS ) {
return IXML_SYNTAX_ERR;
}
} else {
return IXML_SYNTAX_ERR;
}
}
return IXML_SUCCESS;
ErrorHandler:
return IXML_SYNTAX_ERR;
}
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