mirror of https://github.com/AxioDL/tinyxml2.git
1505 lines
30 KiB
C++
1505 lines
30 KiB
C++
#include "tinyxml2.h"
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <new.h>
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#include <stdarg.h>
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//#pragma warning ( disable : 4291 )
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using namespace tinyxml2;
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static const char LINE_FEED = (char)0x0a; // all line endings are normalized to LF
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static const char LF = LINE_FEED;
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static const char CARRIAGE_RETURN = (char)0x0d; // CR gets filtered out
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static const char CR = CARRIAGE_RETURN;
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static const char SINGLE_QUOTE = '\'';
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static const char DOUBLE_QUOTE = '\"';
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// Bunch of unicode info at:
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// http://www.unicode.org/faq/utf_bom.html
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// ef bb bf (Microsoft "lead bytes") - designates UTF-8
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static const unsigned char TIXML_UTF_LEAD_0 = 0xefU;
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static const unsigned char TIXML_UTF_LEAD_1 = 0xbbU;
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static const unsigned char TIXML_UTF_LEAD_2 = 0xbfU;
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#define DELETE_NODE( node ) { MemPool* pool = node->memPool; node->~XMLNode(); pool->Free( node ); }
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#define DELETE_ATTRIBUTE( attrib ) { MemPool* pool = attrib->memPool; attrib->~XMLAttribute(); pool->Free( attrib ); }
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struct Entity {
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const char* pattern;
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int length;
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char value;
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};
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static const int NUM_ENTITIES = 5;
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static const Entity entities[NUM_ENTITIES] =
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{
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{ "quot", 4, DOUBLE_QUOTE },
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{ "amp", 3, '&' },
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{ "apos", 4, SINGLE_QUOTE },
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{ "lt", 2, '<' },
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{ "gt", 2, '>' }
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};
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StrPair::~StrPair()
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{
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Reset();
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}
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void StrPair::Reset()
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{
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if ( flags & NEEDS_DELETE ) {
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delete [] start;
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}
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flags = 0;
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start = 0;
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end = 0;
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}
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void StrPair::SetStr( const char* str, int flags )
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{
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Reset();
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size_t len = strlen( str );
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start = new char[ len+1 ];
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memcpy( start, str, len+1 );
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end = start + len;
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this->flags = flags | NEEDS_DELETE;
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}
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char* StrPair::ParseText( char* p, const char* endTag, int strFlags )
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{
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TIXMLASSERT( endTag && *endTag );
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char* start = p; // fixme: hides a member
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char endChar = *endTag;
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int length = strlen( endTag );
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// Inner loop of text parsing.
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while ( *p ) {
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if ( *p == endChar && strncmp( p, endTag, length ) == 0 ) {
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Set( start, p, strFlags );
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return p + length;
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}
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++p;
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}
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return 0;
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}
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char* StrPair::ParseName( char* p )
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{
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char* start = p;
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start = p;
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if ( !start || !(*start) ) {
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return 0;
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}
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if ( !XMLUtil::IsAlpha( *p ) ) {
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return 0;
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}
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while( *p && (
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XMLUtil::IsAlphaNum( (unsigned char) *p )
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|| *p == '_'
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|| *p == '-'
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|| *p == '.'
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|| *p == ':' ))
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{
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++p;
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}
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if ( p > start ) {
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Set( start, p, 0 );
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return p;
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}
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return 0;
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}
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const char* StrPair::GetStr()
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{
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if ( flags & NEEDS_FLUSH ) {
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*end = 0;
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flags ^= NEEDS_FLUSH;
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if ( flags ) {
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char* p = start; // the read pointer
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char* q = start; // the write pointer
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while( p < end ) {
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if ( (flags & NEEDS_NEWLINE_NORMALIZATION) && *p == CR ) {
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// CR-LF pair becomes LF
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// CR alone becomes LF
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// LF-CR becomes LF
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if ( *(p+1) == LF ) {
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p += 2;
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}
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else {
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++p;
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}
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*q++ = LF;
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}
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else if ( (flags & NEEDS_NEWLINE_NORMALIZATION) && *p == LF ) {
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if ( *(p+1) == CR ) {
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p += 2;
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}
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else {
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++p;
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}
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*q++ = LF;
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}
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else if ( (flags & NEEDS_ENTITY_PROCESSING) && *p == '&' ) {
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int i=0;
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// Entities handled by tinyXML2:
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// - special entities in the entity table [in/out]
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// - numeric character reference [in]
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// 中 or 中
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if ( *(p+1) == '#' ) {
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char buf[10] = { 0 };
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int len;
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p = const_cast<char*>( XMLUtil::GetCharacterRef( p, buf, &len ) );
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for( int i=0; i<len; ++i ) {
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*q++ = buf[i];
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}
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TIXMLASSERT( q <= p );
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}
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else {
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for( i=0; i<NUM_ENTITIES; ++i ) {
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if ( strncmp( p+1, entities[i].pattern, entities[i].length ) == 0
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&& *(p+entities[i].length+1) == ';' )
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{
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// Found an entity convert;
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*q = entities[i].value;
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++q;
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p += entities[i].length + 2;
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break;
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}
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}
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if ( i == NUM_ENTITIES ) {
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// fixme: treat as error?
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++p;
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++q;
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}
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}
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}
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else {
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*q = *p;
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++p;
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++q;
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}
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}
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*q = 0;
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}
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flags = (flags & NEEDS_DELETE);
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}
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return start;
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}
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// --------- XMLUtil ----------- //
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const char* XMLUtil::ReadBOM( const char* p, bool* bom )
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{
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*bom = false;
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const unsigned char* pu = reinterpret_cast<const unsigned char*>(p);
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// Check for BOM:
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if ( *(pu+0) == TIXML_UTF_LEAD_0
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&& *(pu+1) == TIXML_UTF_LEAD_1
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&& *(pu+2) == TIXML_UTF_LEAD_2 )
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{
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*bom = true;
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p += 3;
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}
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return p;
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}
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void XMLUtil::ConvertUTF32ToUTF8( unsigned long input, char* output, int* length )
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{
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const unsigned long BYTE_MASK = 0xBF;
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const unsigned long BYTE_MARK = 0x80;
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const unsigned long FIRST_BYTE_MARK[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
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if (input < 0x80)
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*length = 1;
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else if ( input < 0x800 )
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*length = 2;
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else if ( input < 0x10000 )
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*length = 3;
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else if ( input < 0x200000 )
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*length = 4;
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else
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{ *length = 0; return; } // This code won't covert this correctly anyway.
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output += *length;
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// Scary scary fall throughs.
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switch (*length)
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{
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case 4:
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--output;
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*output = (char)((input | BYTE_MARK) & BYTE_MASK);
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input >>= 6;
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case 3:
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--output;
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*output = (char)((input | BYTE_MARK) & BYTE_MASK);
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input >>= 6;
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case 2:
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--output;
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*output = (char)((input | BYTE_MARK) & BYTE_MASK);
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input >>= 6;
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case 1:
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--output;
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*output = (char)(input | FIRST_BYTE_MARK[*length]);
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}
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}
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const char* XMLUtil::GetCharacterRef( const char* p, char* value, int* length )
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{
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// Presume an entity, and pull it out.
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*length = 0;
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if ( *(p+1) == '#' && *(p+2) )
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{
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unsigned long ucs = 0;
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ptrdiff_t delta = 0;
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unsigned mult = 1;
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if ( *(p+2) == 'x' )
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{
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// Hexadecimal.
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if ( !*(p+3) ) return 0;
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const char* q = p+3;
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q = strchr( q, ';' );
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if ( !q || !*q ) return 0;
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delta = q-p;
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--q;
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while ( *q != 'x' )
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{
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if ( *q >= '0' && *q <= '9' )
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ucs += mult * (*q - '0');
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else if ( *q >= 'a' && *q <= 'f' )
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ucs += mult * (*q - 'a' + 10);
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else if ( *q >= 'A' && *q <= 'F' )
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ucs += mult * (*q - 'A' + 10 );
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else
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return 0;
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mult *= 16;
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--q;
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}
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}
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else
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{
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// Decimal.
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if ( !*(p+2) ) return 0;
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const char* q = p+2;
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q = strchr( q, ';' );
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if ( !q || !*q ) return 0;
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delta = q-p;
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--q;
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while ( *q != '#' )
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{
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if ( *q >= '0' && *q <= '9' )
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ucs += mult * (*q - '0');
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else
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return 0;
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mult *= 10;
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--q;
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}
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}
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// convert the UCS to UTF-8
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ConvertUTF32ToUTF8( ucs, value, length );
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return p + delta + 1;
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}
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return p+1;
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}
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char* XMLDocument::Identify( char* p, XMLNode** node )
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{
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XMLNode* returnNode = 0;
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char* start = p;
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p = XMLUtil::SkipWhiteSpace( p );
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if( !p || !*p )
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{
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return 0;
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}
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// What is this thing?
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// - Elements start with a letter or underscore, but xml is reserved.
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// - Comments: <!--
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// - Decleration: <?
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// - Everthing else is unknown to tinyxml.
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//
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static const char* xmlHeader = { "<?" };
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static const char* commentHeader = { "<!--" };
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static const char* dtdHeader = { "<!" };
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static const char* cdataHeader = { "<![CDATA[" };
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static const char* elementHeader = { "<" }; // and a header for everything else; check last.
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static const int xmlHeaderLen = 2;
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static const int commentHeaderLen = 4;
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static const int dtdHeaderLen = 2;
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static const int cdataHeaderLen = 9;
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static const int elementHeaderLen = 1;
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TIXMLASSERT( sizeof( XMLComment ) == sizeof( XMLUnknown ) ); // use same memory pool
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TIXMLASSERT( sizeof( XMLComment ) == sizeof( XMLDeclaration ) ); // use same memory pool
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if ( XMLUtil::StringEqual( p, xmlHeader, xmlHeaderLen ) ) {
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returnNode = new (commentPool.Alloc()) XMLDeclaration( this );
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returnNode->memPool = &commentPool;
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p += xmlHeaderLen;
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}
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else if ( XMLUtil::StringEqual( p, commentHeader, commentHeaderLen ) ) {
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returnNode = new (commentPool.Alloc()) XMLComment( this );
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returnNode->memPool = &commentPool;
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p += commentHeaderLen;
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}
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else if ( XMLUtil::StringEqual( p, cdataHeader, cdataHeaderLen ) ) {
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XMLText* text = new (textPool.Alloc()) XMLText( this );
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returnNode = text;
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returnNode->memPool = &textPool;
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p += cdataHeaderLen;
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text->SetCData( true );
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}
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else if ( XMLUtil::StringEqual( p, dtdHeader, dtdHeaderLen ) ) {
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returnNode = new (commentPool.Alloc()) XMLUnknown( this );
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returnNode->memPool = &commentPool;
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p += dtdHeaderLen;
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}
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else if ( XMLUtil::StringEqual( p, elementHeader, elementHeaderLen ) ) {
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returnNode = new (elementPool.Alloc()) XMLElement( this );
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returnNode->memPool = &elementPool;
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p += elementHeaderLen;
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}
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else {
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returnNode = new (textPool.Alloc()) XMLText( this );
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returnNode->memPool = &textPool;
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p = start; // Back it up, all the text counts.
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}
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*node = returnNode;
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return p;
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}
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bool XMLDocument::Accept( XMLVisitor* visitor ) const
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{
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if ( visitor->VisitEnter( *this ) )
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{
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for ( const XMLNode* node=FirstChild(); node; node=node->NextSibling() )
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{
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if ( !node->Accept( visitor ) )
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break;
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}
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}
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return visitor->VisitExit( *this );
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}
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// --------- XMLNode ----------- //
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XMLNode::XMLNode( XMLDocument* doc ) :
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document( doc ),
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parent( 0 ),
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firstChild( 0 ), lastChild( 0 ),
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prev( 0 ), next( 0 )
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{
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}
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XMLNode::~XMLNode()
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{
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ClearChildren();
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if ( parent ) {
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parent->Unlink( this );
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}
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}
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void XMLNode::SetValue( const char* str, bool staticMem )
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{
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if ( staticMem )
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value.SetInternedStr( str );
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else
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value.SetStr( str );
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}
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void XMLNode::ClearChildren()
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{
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while( firstChild ) {
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XMLNode* node = firstChild;
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Unlink( node );
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DELETE_NODE( node );
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}
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firstChild = lastChild = 0;
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}
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void XMLNode::Unlink( XMLNode* child )
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{
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TIXMLASSERT( child->parent == this );
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if ( child == firstChild )
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firstChild = firstChild->next;
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if ( child == lastChild )
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lastChild = lastChild->prev;
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if ( child->prev ) {
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child->prev->next = child->next;
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}
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if ( child->next ) {
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child->next->prev = child->prev;
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}
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child->parent = 0;
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}
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void XMLNode::DeleteChild( XMLNode* node )
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{
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TIXMLASSERT( node->parent == this );
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DELETE_NODE( node );
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}
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XMLNode* XMLNode::InsertEndChild( XMLNode* addThis )
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{
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if ( lastChild ) {
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TIXMLASSERT( firstChild );
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TIXMLASSERT( lastChild->next == 0 );
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lastChild->next = addThis;
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addThis->prev = lastChild;
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lastChild = addThis;
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addThis->next = 0;
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}
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else {
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TIXMLASSERT( firstChild == 0 );
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firstChild = lastChild = addThis;
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addThis->prev = 0;
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addThis->next = 0;
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}
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addThis->parent = this;
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return addThis;
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}
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XMLNode* XMLNode::InsertFirstChild( XMLNode* addThis )
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{
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if ( firstChild ) {
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TIXMLASSERT( lastChild );
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TIXMLASSERT( firstChild->prev == 0 );
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firstChild->prev = addThis;
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addThis->next = firstChild;
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firstChild = addThis;
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addThis->prev = 0;
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}
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else {
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TIXMLASSERT( lastChild == 0 );
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firstChild = lastChild = addThis;
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addThis->prev = 0;
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addThis->next = 0;
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}
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addThis->parent = this;
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return addThis;
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}
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XMLNode* XMLNode::InsertAfterChild( XMLNode* afterThis, XMLNode* addThis )
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{
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TIXMLASSERT( afterThis->parent == this );
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if ( afterThis->parent != this )
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return 0;
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if ( afterThis->next == 0 ) {
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// The last node or the only node.
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return InsertEndChild( addThis );
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}
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addThis->prev = afterThis;
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addThis->next = afterThis->next;
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afterThis->next->prev = addThis;
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afterThis->next = addThis;
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addThis->parent = this;
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return addThis;
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}
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const XMLElement* XMLNode::FirstChildElement( const char* value ) const
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{
|
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for( XMLNode* node=firstChild; node; node=node->next ) {
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XMLElement* element = node->ToElement();
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if ( element ) {
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if ( !value || XMLUtil::StringEqual( element->Name(), value ) ) {
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return element;
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}
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}
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}
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return 0;
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}
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|
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const XMLElement* XMLNode::LastChildElement( const char* value ) const
|
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{
|
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for( XMLNode* node=lastChild; node; node=node->prev ) {
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XMLElement* element = node->ToElement();
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if ( element ) {
|
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if ( !value || XMLUtil::StringEqual( element->Name(), value ) ) {
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return element;
|
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}
|
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}
|
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}
|
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return 0;
|
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}
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|
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char* XMLNode::ParseDeep( char* p )
|
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{
|
|
while( p && *p ) {
|
|
XMLNode* node = 0;
|
|
p = document->Identify( p, &node );
|
|
if ( p && node ) {
|
|
p = node->ParseDeep( p );
|
|
// FIXME: is it the correct closing element?
|
|
if ( node->IsClosingElement() ) {
|
|
DELETE_NODE( node );
|
|
return p;
|
|
}
|
|
this->InsertEndChild( node );
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// --------- XMLText ---------- //
|
|
char* XMLText::ParseDeep( char* p )
|
|
{
|
|
const char* start = p;
|
|
if ( this->CData() ) {
|
|
p = value.ParseText( p, "]]>", StrPair::NEEDS_NEWLINE_NORMALIZATION );
|
|
if ( !p ) {
|
|
document->SetError( ERROR_PARSING_CDATA, start, 0 );
|
|
}
|
|
return p;
|
|
}
|
|
else {
|
|
p = value.ParseText( p, "<", StrPair::TEXT_ELEMENT );
|
|
if ( !p ) {
|
|
document->SetError( ERROR_PARSING_TEXT, start, 0 );
|
|
}
|
|
if ( p && *p ) {
|
|
return p-1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
bool XMLText::Accept( XMLVisitor* visitor ) const
|
|
{
|
|
return visitor->Visit( *this );
|
|
}
|
|
|
|
|
|
// --------- XMLComment ---------- //
|
|
|
|
XMLComment::XMLComment( XMLDocument* doc ) : XMLNode( doc )
|
|
{
|
|
}
|
|
|
|
|
|
XMLComment::~XMLComment()
|
|
{
|
|
//printf( "~XMLComment\n" );
|
|
}
|
|
|
|
|
|
char* XMLComment::ParseDeep( char* p )
|
|
{
|
|
// Comment parses as text.
|
|
const char* start = p;
|
|
p = value.ParseText( p, "-->", StrPair::COMMENT );
|
|
if ( p == 0 ) {
|
|
document->SetError( ERROR_PARSING_COMMENT, start, 0 );
|
|
}
|
|
return p;
|
|
}
|
|
|
|
|
|
bool XMLComment::Accept( XMLVisitor* visitor ) const
|
|
{
|
|
return visitor->Visit( *this );
|
|
}
|
|
|
|
|
|
// --------- XMLDeclaration ---------- //
|
|
|
|
XMLDeclaration::XMLDeclaration( XMLDocument* doc ) : XMLNode( doc )
|
|
{
|
|
}
|
|
|
|
|
|
XMLDeclaration::~XMLDeclaration()
|
|
{
|
|
//printf( "~XMLDeclaration\n" );
|
|
}
|
|
|
|
|
|
char* XMLDeclaration::ParseDeep( char* p )
|
|
{
|
|
// Declaration parses as text.
|
|
const char* start = p;
|
|
p = value.ParseText( p, "?>", StrPair::NEEDS_NEWLINE_NORMALIZATION );
|
|
if ( p == 0 ) {
|
|
document->SetError( ERROR_PARSING_DECLARATION, start, 0 );
|
|
}
|
|
return p;
|
|
}
|
|
|
|
|
|
bool XMLDeclaration::Accept( XMLVisitor* visitor ) const
|
|
{
|
|
return visitor->Visit( *this );
|
|
}
|
|
|
|
// --------- XMLUnknown ---------- //
|
|
|
|
XMLUnknown::XMLUnknown( XMLDocument* doc ) : XMLNode( doc )
|
|
{
|
|
}
|
|
|
|
|
|
XMLUnknown::~XMLUnknown()
|
|
{
|
|
}
|
|
|
|
|
|
char* XMLUnknown::ParseDeep( char* p )
|
|
{
|
|
// Unknown parses as text.
|
|
const char* start = p;
|
|
|
|
p = value.ParseText( p, ">", StrPair::NEEDS_NEWLINE_NORMALIZATION );
|
|
if ( !p ) {
|
|
document->SetError( ERROR_PARSING_UNKNOWN, start, 0 );
|
|
}
|
|
return p;
|
|
}
|
|
|
|
|
|
bool XMLUnknown::Accept( XMLVisitor* visitor ) const
|
|
{
|
|
return visitor->Visit( *this );
|
|
}
|
|
|
|
// --------- XMLAttribute ---------- //
|
|
char* XMLAttribute::ParseDeep( char* p )
|
|
{
|
|
p = name.ParseText( p, "=", StrPair::ATTRIBUTE_NAME );
|
|
if ( !p || !*p ) return 0;
|
|
|
|
char endTag[2] = { *p, 0 };
|
|
++p;
|
|
p = value.ParseText( p, endTag, StrPair::ATTRIBUTE_VALUE );
|
|
if ( value.Empty() ) return 0;
|
|
return p;
|
|
}
|
|
|
|
|
|
void XMLAttribute::SetName( const char* n )
|
|
{
|
|
name.SetStr( n );
|
|
}
|
|
|
|
|
|
int XMLAttribute::QueryIntAttribute( int* value ) const
|
|
{
|
|
if ( TIXML_SSCANF( Value(), "%d", value ) == 1 )
|
|
return XML_NO_ERROR;
|
|
return WRONG_ATTRIBUTE_TYPE;
|
|
}
|
|
|
|
|
|
int XMLAttribute::QueryUnsignedAttribute( unsigned int* value ) const
|
|
{
|
|
if ( TIXML_SSCANF( Value(), "%u", value ) == 1 )
|
|
return XML_NO_ERROR;
|
|
return WRONG_ATTRIBUTE_TYPE;
|
|
}
|
|
|
|
|
|
int XMLAttribute::QueryBoolAttribute( bool* value ) const
|
|
{
|
|
int ival = -1;
|
|
QueryIntAttribute( &ival );
|
|
|
|
if ( ival > 0 || XMLUtil::StringEqual( Value(), "true" ) ) {
|
|
*value = true;
|
|
return XML_NO_ERROR;
|
|
}
|
|
else if ( ival == 0 || XMLUtil::StringEqual( Value(), "false" ) ) {
|
|
*value = false;
|
|
return XML_NO_ERROR;
|
|
}
|
|
return WRONG_ATTRIBUTE_TYPE;
|
|
}
|
|
|
|
|
|
int XMLAttribute::QueryDoubleAttribute( double* value ) const
|
|
{
|
|
if ( TIXML_SSCANF( Value(), "%lf", value ) == 1 )
|
|
return XML_NO_ERROR;
|
|
return WRONG_ATTRIBUTE_TYPE;
|
|
}
|
|
|
|
|
|
int XMLAttribute::QueryFloatAttribute( float* value ) const
|
|
{
|
|
if ( TIXML_SSCANF( Value(), "%f", value ) == 1 )
|
|
return XML_NO_ERROR;
|
|
return WRONG_ATTRIBUTE_TYPE;
|
|
}
|
|
|
|
|
|
void XMLAttribute::SetAttribute( const char* v )
|
|
{
|
|
value.SetStr( v );
|
|
}
|
|
|
|
|
|
void XMLAttribute::SetAttribute( int v )
|
|
{
|
|
char buf[BUF_SIZE];
|
|
TIXML_SNPRINTF( buf, BUF_SIZE-1, "%d", v );
|
|
value.SetStr( buf );
|
|
}
|
|
|
|
|
|
void XMLAttribute::SetAttribute( unsigned v )
|
|
{
|
|
char buf[BUF_SIZE];
|
|
TIXML_SNPRINTF( buf, BUF_SIZE-1, "%u", v );
|
|
value.SetStr( buf );
|
|
}
|
|
|
|
|
|
void XMLAttribute::SetAttribute( bool v )
|
|
{
|
|
char buf[BUF_SIZE];
|
|
TIXML_SNPRINTF( buf, BUF_SIZE-1, "%d", v ? 1 : 0 );
|
|
value.SetStr( buf );
|
|
}
|
|
|
|
void XMLAttribute::SetAttribute( double v )
|
|
{
|
|
char buf[BUF_SIZE];
|
|
TIXML_SNPRINTF( buf, BUF_SIZE-1, "%f", v );
|
|
value.SetStr( buf );
|
|
}
|
|
|
|
void XMLAttribute::SetAttribute( float v )
|
|
{
|
|
char buf[BUF_SIZE];
|
|
TIXML_SNPRINTF( buf, BUF_SIZE-1, "%f", v );
|
|
value.SetStr( buf );
|
|
}
|
|
|
|
|
|
// --------- XMLElement ---------- //
|
|
XMLElement::XMLElement( XMLDocument* doc ) : XMLNode( doc ),
|
|
closing( false ),
|
|
rootAttribute( 0 )
|
|
//lastAttribute( 0 )
|
|
{
|
|
}
|
|
|
|
|
|
XMLElement::~XMLElement()
|
|
{
|
|
while( rootAttribute ) {
|
|
XMLAttribute* next = rootAttribute->next;
|
|
DELETE_ATTRIBUTE( rootAttribute );
|
|
rootAttribute = next;
|
|
}
|
|
}
|
|
|
|
|
|
XMLAttribute* XMLElement::FindAttribute( const char* name )
|
|
{
|
|
XMLAttribute* a = 0;
|
|
for( a=rootAttribute; a; a = a->next ) {
|
|
if ( XMLUtil::StringEqual( a->Name(), name ) )
|
|
return a;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
const XMLAttribute* XMLElement::FindAttribute( const char* name ) const
|
|
{
|
|
XMLAttribute* a = 0;
|
|
for( a=rootAttribute; a; a = a->next ) {
|
|
if ( XMLUtil::StringEqual( a->Name(), name ) )
|
|
return a;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
const char* XMLElement::GetText() const
|
|
{
|
|
if ( FirstChild() && FirstChild()->ToText() ) {
|
|
return FirstChild()->ToText()->Value();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
XMLAttribute* XMLElement::FindOrCreateAttribute( const char* name )
|
|
{
|
|
XMLAttribute* attrib = FindAttribute( name );
|
|
if ( !attrib ) {
|
|
attrib = new (document->attributePool.Alloc() ) XMLAttribute( this );
|
|
attrib->memPool = &document->attributePool;
|
|
LinkAttribute( attrib );
|
|
attrib->SetName( name );
|
|
}
|
|
return attrib;
|
|
}
|
|
|
|
|
|
void XMLElement::LinkAttribute( XMLAttribute* attrib )
|
|
{
|
|
if ( rootAttribute ) {
|
|
XMLAttribute* end = rootAttribute;
|
|
while ( end->next )
|
|
end = end->next;
|
|
end->next = attrib;
|
|
}
|
|
else {
|
|
rootAttribute = attrib;
|
|
}
|
|
}
|
|
|
|
|
|
void XMLElement::DeleteAttribute( const char* name )
|
|
{
|
|
XMLAttribute* prev = 0;
|
|
for( XMLAttribute* a=rootAttribute; a; a=a->next ) {
|
|
if ( XMLUtil::StringEqual( name, a->Name() ) ) {
|
|
if ( prev ) {
|
|
prev->next = a->next;
|
|
}
|
|
else {
|
|
rootAttribute = a->next;
|
|
}
|
|
DELETE_ATTRIBUTE( a );
|
|
break;
|
|
}
|
|
prev = a;
|
|
}
|
|
}
|
|
|
|
|
|
char* XMLElement::ParseAttributes( char* p, bool* closedElement )
|
|
{
|
|
const char* start = p;
|
|
*closedElement = false;
|
|
|
|
// Read the attributes.
|
|
while( p ) {
|
|
p = XMLUtil::SkipWhiteSpace( p );
|
|
if ( !p || !(*p) ) {
|
|
document->SetError( ERROR_PARSING_ELEMENT, start, Name() );
|
|
return 0;
|
|
}
|
|
|
|
// attribute.
|
|
if ( XMLUtil::IsAlpha( *p ) ) {
|
|
XMLAttribute* attrib = new (document->attributePool.Alloc() ) XMLAttribute( this );
|
|
attrib->memPool = &document->attributePool;
|
|
|
|
p = attrib->ParseDeep( p );
|
|
if ( !p ) {
|
|
DELETE_ATTRIBUTE( attrib );
|
|
document->SetError( ERROR_PARSING_ATTRIBUTE, start, p );
|
|
return 0;
|
|
}
|
|
LinkAttribute( attrib );
|
|
}
|
|
// end of the tag
|
|
else if ( *p == '/' && *(p+1) == '>' ) {
|
|
if ( closing ) {
|
|
document->SetError( ERROR_PARSING_ELEMENT, start, p );
|
|
return 0;
|
|
}
|
|
*closedElement = true;
|
|
return p+2; // done; sealed element.
|
|
}
|
|
// end of the tag
|
|
else if ( *p == '>' ) {
|
|
++p;
|
|
break;
|
|
}
|
|
else {
|
|
document->SetError( ERROR_PARSING_ELEMENT, start, p );
|
|
return 0;
|
|
}
|
|
}
|
|
return p;
|
|
}
|
|
|
|
|
|
//
|
|
// <ele></ele>
|
|
// <ele>foo<b>bar</b></ele>
|
|
//
|
|
char* XMLElement::ParseDeep( char* p )
|
|
{
|
|
// Read the element name.
|
|
p = XMLUtil::SkipWhiteSpace( p );
|
|
if ( !p ) return 0;
|
|
const char* start = p;
|
|
|
|
// The closing element is the </element> form. It is
|
|
// parsed just like a regular element then deleted from
|
|
// the DOM.
|
|
if ( *p == '/' ) {
|
|
closing = true;
|
|
++p;
|
|
}
|
|
|
|
p = value.ParseName( p );
|
|
if ( value.Empty() ) return 0;
|
|
|
|
bool elementClosed=false;
|
|
p = ParseAttributes( p, &elementClosed );
|
|
if ( !p || !*p || elementClosed || closing )
|
|
return p;
|
|
|
|
p = XMLNode::ParseDeep( p );
|
|
return p;
|
|
}
|
|
|
|
|
|
bool XMLElement::Accept( XMLVisitor* visitor ) const
|
|
{
|
|
if ( visitor->VisitEnter( *this, rootAttribute ) )
|
|
{
|
|
for ( const XMLNode* node=FirstChild(); node; node=node->NextSibling() )
|
|
{
|
|
if ( !node->Accept( visitor ) )
|
|
break;
|
|
}
|
|
}
|
|
return visitor->VisitExit( *this );
|
|
|
|
}
|
|
|
|
// --------- XMLDocument ----------- //
|
|
XMLDocument::XMLDocument() :
|
|
XMLNode( 0 ),
|
|
writeBOM( false ),
|
|
charBuffer( 0 )
|
|
{
|
|
document = this; // avoid warning about 'this' in initializer list
|
|
}
|
|
|
|
|
|
XMLDocument::~XMLDocument()
|
|
{
|
|
ClearChildren();
|
|
delete [] charBuffer;
|
|
|
|
#if 0
|
|
textPool.Trace( "text" );
|
|
elementPool.Trace( "element" );
|
|
commentPool.Trace( "comment" );
|
|
attributePool.Trace( "attribute" );
|
|
#endif
|
|
|
|
TIXMLASSERT( textPool.CurrentAllocs() == 0 );
|
|
TIXMLASSERT( elementPool.CurrentAllocs() == 0 );
|
|
TIXMLASSERT( commentPool.CurrentAllocs() == 0 );
|
|
TIXMLASSERT( attributePool.CurrentAllocs() == 0 );
|
|
}
|
|
|
|
|
|
void XMLDocument::InitDocument()
|
|
{
|
|
errorID = XML_NO_ERROR;
|
|
errorStr1 = 0;
|
|
errorStr2 = 0;
|
|
|
|
delete [] charBuffer;
|
|
charBuffer = 0;
|
|
|
|
}
|
|
|
|
|
|
XMLElement* XMLDocument::NewElement( const char* name )
|
|
{
|
|
XMLElement* ele = new (elementPool.Alloc()) XMLElement( this );
|
|
ele->memPool = &elementPool;
|
|
ele->SetName( name );
|
|
return ele;
|
|
}
|
|
|
|
|
|
XMLComment* XMLDocument::NewComment( const char* str )
|
|
{
|
|
XMLComment* comment = new (commentPool.Alloc()) XMLComment( this );
|
|
comment->memPool = &commentPool;
|
|
comment->SetValue( str );
|
|
return comment;
|
|
}
|
|
|
|
|
|
XMLText* XMLDocument::NewText( const char* str )
|
|
{
|
|
XMLText* text = new (textPool.Alloc()) XMLText( this );
|
|
text->memPool = &textPool;
|
|
text->SetValue( str );
|
|
return text;
|
|
}
|
|
|
|
|
|
int XMLDocument::LoadFile( const char* filename )
|
|
{
|
|
ClearChildren();
|
|
InitDocument();
|
|
|
|
FILE* fp = fopen( filename, "rb" );
|
|
if ( !fp ) {
|
|
SetError( ERROR_FILE_NOT_FOUND, filename, 0 );
|
|
return errorID;
|
|
}
|
|
LoadFile( fp );
|
|
fclose( fp );
|
|
return errorID;
|
|
}
|
|
|
|
|
|
int XMLDocument::LoadFile( FILE* fp )
|
|
{
|
|
ClearChildren();
|
|
InitDocument();
|
|
|
|
fseek( fp, 0, SEEK_END );
|
|
unsigned size = ftell( fp );
|
|
fseek( fp, 0, SEEK_SET );
|
|
|
|
if ( size == 0 ) {
|
|
return errorID;
|
|
}
|
|
|
|
charBuffer = new char[size+1];
|
|
fread( charBuffer, size, 1, fp );
|
|
charBuffer[size] = 0;
|
|
|
|
const char* p = charBuffer;
|
|
p = XMLUtil::SkipWhiteSpace( p );
|
|
p = XMLUtil::ReadBOM( p, &writeBOM );
|
|
if ( !p || !*p ) {
|
|
return 0; // correctly parse an empty string?
|
|
}
|
|
|
|
ParseDeep( charBuffer + (p-charBuffer) );
|
|
return errorID;
|
|
}
|
|
|
|
|
|
void XMLDocument::SaveFile( const char* filename )
|
|
{
|
|
FILE* fp = fopen( filename, "w" );
|
|
XMLStreamer stream( fp );
|
|
Print( &stream );
|
|
fclose( fp );
|
|
}
|
|
|
|
|
|
int XMLDocument::Parse( const char* p )
|
|
{
|
|
ClearChildren();
|
|
InitDocument();
|
|
|
|
if ( !p || !*p ) {
|
|
return true; // correctly parse an empty string?
|
|
}
|
|
p = XMLUtil::SkipWhiteSpace( p );
|
|
p = XMLUtil::ReadBOM( p, &writeBOM );
|
|
if ( !p || !*p ) {
|
|
return true; // correctly parse an empty string?
|
|
}
|
|
|
|
size_t len = strlen( p );
|
|
charBuffer = new char[ len+1 ];
|
|
memcpy( charBuffer, p, len+1 );
|
|
|
|
|
|
ParseDeep( charBuffer );
|
|
return errorID;
|
|
}
|
|
|
|
|
|
void XMLDocument::Print( XMLStreamer* streamer )
|
|
{
|
|
XMLStreamer stdStreamer( stdout );
|
|
if ( !streamer )
|
|
streamer = &stdStreamer;
|
|
//for( XMLNode* node = firstChild; node; node=node->next ) {
|
|
// node->Print( streamer );
|
|
//}
|
|
Accept( streamer );
|
|
}
|
|
|
|
|
|
void XMLDocument::SetError( int error, const char* str1, const char* str2 )
|
|
{
|
|
errorID = error;
|
|
errorStr1 = str1;
|
|
errorStr2 = str2;
|
|
}
|
|
|
|
|
|
void XMLDocument::PrintError() const
|
|
{
|
|
if ( errorID ) {
|
|
char buf1[20] = { 0 };
|
|
char buf2[20] = { 0 };
|
|
|
|
if ( errorStr1 ) {
|
|
strncpy( buf1, errorStr1, 20 );
|
|
buf1[19] = 0;
|
|
}
|
|
if ( errorStr2 ) {
|
|
strncpy( buf2, errorStr2, 20 );
|
|
buf2[19] = 0;
|
|
}
|
|
|
|
printf( "XMLDocument error id=%d str1=%s str2=%s\n",
|
|
errorID, buf1, buf2 );
|
|
}
|
|
}
|
|
|
|
|
|
XMLStreamer::XMLStreamer( FILE* file ) :
|
|
elementJustOpened( false ),
|
|
firstElement( true ),
|
|
fp( file ),
|
|
depth( 0 ),
|
|
textDepth( -1 )
|
|
{
|
|
for( int i=0; i<ENTITY_RANGE; ++i ) {
|
|
entityFlag[i] = false;
|
|
restrictedEntityFlag[i] = false;
|
|
}
|
|
for( int i=0; i<NUM_ENTITIES; ++i ) {
|
|
TIXMLASSERT( entities[i].value < ENTITY_RANGE );
|
|
if ( entities[i].value < ENTITY_RANGE ) {
|
|
entityFlag[ entities[i].value ] = true;
|
|
}
|
|
}
|
|
restrictedEntityFlag['&'] = true;
|
|
restrictedEntityFlag['<'] = true;
|
|
restrictedEntityFlag['>'] = true; // not required, but consistency is nice
|
|
buffer.Push( 0 );
|
|
}
|
|
|
|
|
|
void XMLStreamer::Print( const char* format, ... )
|
|
{
|
|
va_list va;
|
|
va_start( va, format );
|
|
|
|
if ( fp ) {
|
|
vfprintf( fp, format, va );
|
|
}
|
|
else {
|
|
// This seems brutally complex. Haven't figured out a better
|
|
// way on windows.
|
|
#ifdef _MSC_VER
|
|
int len = -1;
|
|
int expand = 1000;
|
|
while ( len < 0 ) {
|
|
len = vsnprintf_s( accumulator.Mem(), accumulator.Capacity(), accumulator.Capacity()-1, format, va );
|
|
if ( len < 0 ) {
|
|
accumulator.PushArr( expand );
|
|
expand *= 3/2;
|
|
}
|
|
}
|
|
char* p = buffer.PushArr( len ) - 1;
|
|
memcpy( p, accumulator.Mem(), len+1 );
|
|
#else
|
|
int len = vsnprintf( 0, 0, format, va );
|
|
char* p = buffer.PushArr( len ) - 1;
|
|
vsprintf_s( p, len+1, format, va );
|
|
#endif
|
|
}
|
|
va_end( va );
|
|
}
|
|
|
|
|
|
void XMLStreamer::PrintSpace( int depth )
|
|
{
|
|
for( int i=0; i<depth; ++i ) {
|
|
Print( " " );
|
|
}
|
|
}
|
|
|
|
|
|
void XMLStreamer::PrintString( const char* p, bool restricted )
|
|
{
|
|
// Look for runs of bytes between entities to print.
|
|
const char* q = p;
|
|
const bool* flag = restricted ? restrictedEntityFlag : entityFlag;
|
|
|
|
while ( *q ) {
|
|
// Remember, char is sometimes signed. (How many times has that bitten me?)
|
|
if ( *q > 0 && *q < ENTITY_RANGE ) {
|
|
// Check for entities. If one is found, flush
|
|
// the stream up until the entity, write the
|
|
// entity, and keep looking.
|
|
if ( flag[*q] ) {
|
|
while ( p < q ) {
|
|
Print( "%c", *p );
|
|
++p;
|
|
}
|
|
for( int i=0; i<NUM_ENTITIES; ++i ) {
|
|
if ( entities[i].value == *q ) {
|
|
Print( "&%s;", entities[i].pattern );
|
|
break;
|
|
}
|
|
}
|
|
++p;
|
|
}
|
|
}
|
|
++q;
|
|
}
|
|
// Flush the remaining string. This will be the entire
|
|
// string if an entity wasn't found.
|
|
if ( q-p > 0 ) {
|
|
Print( "%s", p );
|
|
}
|
|
}
|
|
|
|
|
|
void XMLStreamer::PushHeader( bool writeBOM, bool writeDec )
|
|
{
|
|
static const unsigned char bom[] = { TIXML_UTF_LEAD_0, TIXML_UTF_LEAD_1, TIXML_UTF_LEAD_2, 0 };
|
|
if ( writeBOM ) {
|
|
Print( "%s", bom );
|
|
}
|
|
if ( writeDec ) {
|
|
PushDeclaration( "xml version=\"1.0\"" );
|
|
}
|
|
}
|
|
|
|
|
|
void XMLStreamer::OpenElement( const char* name )
|
|
{
|
|
if ( elementJustOpened ) {
|
|
SealElement();
|
|
}
|
|
stack.Push( name );
|
|
|
|
if ( textDepth < 0 && !firstElement ) {
|
|
Print( "\n" );
|
|
PrintSpace( depth );
|
|
}
|
|
|
|
Print( "<%s", name );
|
|
elementJustOpened = true;
|
|
firstElement = false;
|
|
++depth;
|
|
}
|
|
|
|
|
|
void XMLStreamer::PushAttribute( const char* name, const char* value )
|
|
{
|
|
TIXMLASSERT( elementJustOpened );
|
|
Print( " %s=\"", name );
|
|
PrintString( value, false );
|
|
Print( "\"" );
|
|
}
|
|
|
|
|
|
void XMLStreamer::CloseElement()
|
|
{
|
|
--depth;
|
|
const char* name = stack.Pop();
|
|
|
|
if ( elementJustOpened ) {
|
|
Print( "/>" );
|
|
}
|
|
else {
|
|
if ( textDepth < 0 ) {
|
|
Print( "\n" );
|
|
PrintSpace( depth );
|
|
}
|
|
Print( "</%s>", name );
|
|
}
|
|
|
|
if ( textDepth == depth )
|
|
textDepth = -1;
|
|
if ( depth == 0 )
|
|
Print( "\n" );
|
|
elementJustOpened = false;
|
|
}
|
|
|
|
|
|
void XMLStreamer::SealElement()
|
|
{
|
|
elementJustOpened = false;
|
|
Print( ">" );
|
|
}
|
|
|
|
|
|
void XMLStreamer::PushText( const char* text, bool cdata )
|
|
{
|
|
textDepth = depth-1;
|
|
|
|
if ( elementJustOpened ) {
|
|
SealElement();
|
|
}
|
|
if ( cdata ) {
|
|
Print( "<![CDATA[" );
|
|
Print( "%s", text );
|
|
Print( "]]>" );
|
|
}
|
|
else {
|
|
PrintString( text, true );
|
|
}
|
|
}
|
|
|
|
|
|
void XMLStreamer::PushComment( const char* comment )
|
|
{
|
|
if ( elementJustOpened ) {
|
|
SealElement();
|
|
}
|
|
if ( textDepth < 0 && !firstElement ) {
|
|
Print( "\n" );
|
|
PrintSpace( depth );
|
|
}
|
|
firstElement = false;
|
|
Print( "<!--%s-->", comment );
|
|
}
|
|
|
|
|
|
void XMLStreamer::PushDeclaration( const char* value )
|
|
{
|
|
if ( elementJustOpened ) {
|
|
SealElement();
|
|
}
|
|
if ( textDepth < 0 && !firstElement) {
|
|
Print( "\n" );
|
|
PrintSpace( depth );
|
|
}
|
|
firstElement = false;
|
|
Print( "<?%s?>", value );
|
|
}
|
|
|
|
|
|
void XMLStreamer::PushUnknown( const char* value )
|
|
{
|
|
if ( elementJustOpened ) {
|
|
SealElement();
|
|
}
|
|
if ( textDepth < 0 && !firstElement ) {
|
|
Print( "\n" );
|
|
PrintSpace( depth );
|
|
}
|
|
firstElement = false;
|
|
Print( "<!%s>", value );
|
|
}
|
|
|
|
|
|
bool XMLStreamer::VisitEnter( const XMLDocument& doc )
|
|
{
|
|
if ( doc.HasBOM() ) {
|
|
PushHeader( true, false );
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
bool XMLStreamer::VisitEnter( const XMLElement& element, const XMLAttribute* attribute )
|
|
{
|
|
OpenElement( element.Name() );
|
|
while ( attribute ) {
|
|
PushAttribute( attribute->Name(), attribute->Value() );
|
|
attribute = attribute->Next();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
bool XMLStreamer::VisitExit( const XMLElement& element )
|
|
{
|
|
CloseElement();
|
|
return true;
|
|
}
|
|
|
|
|
|
bool XMLStreamer::Visit( const XMLText& text )
|
|
{
|
|
PushText( text.Value() );
|
|
return true;
|
|
}
|
|
|
|
|
|
bool XMLStreamer::Visit( const XMLComment& comment )
|
|
{
|
|
PushComment( comment.Value() );
|
|
return true;
|
|
}
|
|
|
|
bool XMLStreamer::Visit( const XMLDeclaration& declaration )
|
|
{
|
|
PushDeclaration( declaration.Value() );
|
|
return true;
|
|
}
|
|
|
|
|
|
bool XMLStreamer::Visit( const XMLUnknown& unknown )
|
|
{
|
|
PushUnknown( unknown.Value() );
|
|
return true;
|
|
}
|
|
|
|
|