diff options
Diffstat (limited to 'mmc_updater/depends/tinyxml/tinyxmlparser.cpp')
| -rw-r--r-- | mmc_updater/depends/tinyxml/tinyxmlparser.cpp | 1638 |
1 files changed, 1638 insertions, 0 deletions
diff --git a/mmc_updater/depends/tinyxml/tinyxmlparser.cpp b/mmc_updater/depends/tinyxml/tinyxmlparser.cpp new file mode 100644 index 00000000..81b7eae9 --- /dev/null +++ b/mmc_updater/depends/tinyxml/tinyxmlparser.cpp @@ -0,0 +1,1638 @@ +/* +www.sourceforge.net/projects/tinyxml +Original code by Lee Thomason (www.grinninglizard.com) + +This software is provided 'as-is', without any express or implied +warranty. In no event will the authors be held liable for any +damages arising from the use of this software. + +Permission is granted to anyone to use this software for any +purpose, including commercial applications, and to alter it and +redistribute it freely, subject to the following restrictions: + +1. The origin of this software must not be misrepresented; you must +not claim that you wrote the original software. If you use this +software in a product, an acknowledgment in the product documentation +would be appreciated but is not required. + +2. Altered source versions must be plainly marked as such, and +must not be misrepresented as being the original software. + +3. This notice may not be removed or altered from any source +distribution. +*/ + +#include <ctype.h> +#include <stddef.h> + +#include "tinyxml.h" + +//#define DEBUG_PARSER +#if defined( DEBUG_PARSER ) +# if defined( DEBUG ) && defined( _MSC_VER ) +# include <windows.h> +# define TIXML_LOG OutputDebugString +# else +# define TIXML_LOG printf +# endif +#endif + +// Note tha "PutString" hardcodes the same list. This +// is less flexible than it appears. Changing the entries +// or order will break putstring. +TiXmlBase::Entity TiXmlBase::entity[ TiXmlBase::NUM_ENTITY ] = +{ + { "&", 5, '&' }, + { "<", 4, '<' }, + { ">", 4, '>' }, + { """, 6, '\"' }, + { "'", 6, '\'' } +}; + +// Bunch of unicode info at: +// http://www.unicode.org/faq/utf_bom.html +// Including the basic of this table, which determines the #bytes in the +// sequence from the lead byte. 1 placed for invalid sequences -- +// although the result will be junk, pass it through as much as possible. +// Beware of the non-characters in UTF-8: +// ef bb bf (Microsoft "lead bytes") +// ef bf be +// ef bf bf + +const unsigned char TIXML_UTF_LEAD_0 = 0xefU; +const unsigned char TIXML_UTF_LEAD_1 = 0xbbU; +const unsigned char TIXML_UTF_LEAD_2 = 0xbfU; + +const int TiXmlBase::utf8ByteTable[256] = +{ + // 0 1 2 3 4 5 6 7 8 9 a b c d e f + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x00 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x10 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x20 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x30 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x40 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x50 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x60 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x70 End of ASCII range + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x80 0x80 to 0xc1 invalid + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x90 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0xa0 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0xb0 + 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // 0xc0 0xc2 to 0xdf 2 byte + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // 0xd0 + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // 0xe0 0xe0 to 0xef 3 byte + 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 // 0xf0 0xf0 to 0xf4 4 byte, 0xf5 and higher invalid +}; + + +void TiXmlBase::ConvertUTF32ToUTF8( unsigned long input, char* output, int* length ) +{ + const unsigned long BYTE_MASK = 0xBF; + const unsigned long BYTE_MARK = 0x80; + const unsigned long FIRST_BYTE_MARK[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC }; + + if (input < 0x80) + *length = 1; + else if ( input < 0x800 ) + *length = 2; + else if ( input < 0x10000 ) + *length = 3; + else if ( input < 0x200000 ) + *length = 4; + else + { *length = 0; return; } // This code won't covert this correctly anyway. + + output += *length; + + // Scary scary fall throughs. + switch (*length) + { + case 4: + --output; + *output = (char)((input | BYTE_MARK) & BYTE_MASK); + input >>= 6; + case 3: + --output; + *output = (char)((input | BYTE_MARK) & BYTE_MASK); + input >>= 6; + case 2: + --output; + *output = (char)((input | BYTE_MARK) & BYTE_MASK); + input >>= 6; + case 1: + --output; + *output = (char)(input | FIRST_BYTE_MARK[*length]); + } +} + + +/*static*/ int TiXmlBase::IsAlpha( unsigned char anyByte, TiXmlEncoding /*encoding*/ ) +{ + // This will only work for low-ascii, everything else is assumed to be a valid + // letter. I'm not sure this is the best approach, but it is quite tricky trying + // to figure out alhabetical vs. not across encoding. So take a very + // conservative approach. + +// if ( encoding == TIXML_ENCODING_UTF8 ) +// { + if ( anyByte < 127 ) + return isalpha( anyByte ); + else + return 1; // What else to do? The unicode set is huge...get the english ones right. +// } +// else +// { +// return isalpha( anyByte ); +// } +} + + +/*static*/ int TiXmlBase::IsAlphaNum( unsigned char anyByte, TiXmlEncoding /*encoding*/ ) +{ + // This will only work for low-ascii, everything else is assumed to be a valid + // letter. I'm not sure this is the best approach, but it is quite tricky trying + // to figure out alhabetical vs. not across encoding. So take a very + // conservative approach. + +// if ( encoding == TIXML_ENCODING_UTF8 ) +// { + if ( anyByte < 127 ) + return isalnum( anyByte ); + else + return 1; // What else to do? The unicode set is huge...get the english ones right. +// } +// else +// { +// return isalnum( anyByte ); +// } +} + + +class TiXmlParsingData +{ + friend class TiXmlDocument; + public: + void Stamp( const char* now, TiXmlEncoding encoding ); + + const TiXmlCursor& Cursor() const { return cursor; } + + private: + // Only used by the document! + TiXmlParsingData( const char* start, int _tabsize, int row, int col ) + { + assert( start ); + stamp = start; + tabsize = _tabsize; + cursor.row = row; + cursor.col = col; + } + + TiXmlCursor cursor; + const char* stamp; + int tabsize; +}; + + +void TiXmlParsingData::Stamp( const char* now, TiXmlEncoding encoding ) +{ + assert( now ); + + // Do nothing if the tabsize is 0. + if ( tabsize < 1 ) + { + return; + } + + // Get the current row, column. + int row = cursor.row; + int col = cursor.col; + const char* p = stamp; + assert( p ); + + while ( p < now ) + { + // Treat p as unsigned, so we have a happy compiler. + const unsigned char* pU = (const unsigned char*)p; + + // Code contributed by Fletcher Dunn: (modified by lee) + switch (*pU) { + case 0: + // We *should* never get here, but in case we do, don't + // advance past the terminating null character, ever + return; + + case '\r': + // bump down to the next line + ++row; + col = 0; + // Eat the character + ++p; + + // Check for \r\n sequence, and treat this as a single character + if (*p == '\n') { + ++p; + } + break; + + case '\n': + // bump down to the next line + ++row; + col = 0; + + // Eat the character + ++p; + + // Check for \n\r sequence, and treat this as a single + // character. (Yes, this bizarre thing does occur still + // on some arcane platforms...) + if (*p == '\r') { + ++p; + } + break; + + case '\t': + // Eat the character + ++p; + + // Skip to next tab stop + col = (col / tabsize + 1) * tabsize; + break; + + case TIXML_UTF_LEAD_0: + if ( encoding == TIXML_ENCODING_UTF8 ) + { + if ( *(p+1) && *(p+2) ) + { + // In these cases, don't advance the column. These are + // 0-width spaces. + if ( *(pU+1)==TIXML_UTF_LEAD_1 && *(pU+2)==TIXML_UTF_LEAD_2 ) + p += 3; + else if ( *(pU+1)==0xbfU && *(pU+2)==0xbeU ) + p += 3; + else if ( *(pU+1)==0xbfU && *(pU+2)==0xbfU ) + p += 3; + else + { p +=3; ++col; } // A normal character. + } + } + else + { + ++p; + ++col; + } + break; + + default: + if ( encoding == TIXML_ENCODING_UTF8 ) + { + // Eat the 1 to 4 byte utf8 character. + int step = TiXmlBase::utf8ByteTable[*((const unsigned char*)p)]; + if ( step == 0 ) + step = 1; // Error case from bad encoding, but handle gracefully. + p += step; + + // Just advance one column, of course. + ++col; + } + else + { + ++p; + ++col; + } + break; + } + } + cursor.row = row; + cursor.col = col; + assert( cursor.row >= -1 ); + assert( cursor.col >= -1 ); + stamp = p; + assert( stamp ); +} + + +const char* TiXmlBase::SkipWhiteSpace( const char* p, TiXmlEncoding encoding ) +{ + if ( !p || !*p ) + { + return 0; + } + if ( encoding == TIXML_ENCODING_UTF8 ) + { + while ( *p ) + { + const unsigned char* pU = (const unsigned char*)p; + + // Skip the stupid Microsoft UTF-8 Byte order marks + if ( *(pU+0)==TIXML_UTF_LEAD_0 + && *(pU+1)==TIXML_UTF_LEAD_1 + && *(pU+2)==TIXML_UTF_LEAD_2 ) + { + p += 3; + continue; + } + else if(*(pU+0)==TIXML_UTF_LEAD_0 + && *(pU+1)==0xbfU + && *(pU+2)==0xbeU ) + { + p += 3; + continue; + } + else if(*(pU+0)==TIXML_UTF_LEAD_0 + && *(pU+1)==0xbfU + && *(pU+2)==0xbfU ) + { + p += 3; + continue; + } + + if ( IsWhiteSpace( *p ) ) // Still using old rules for white space. + ++p; + else + break; + } + } + else + { + while ( *p && IsWhiteSpace( *p ) ) + ++p; + } + + return p; +} + +#ifdef TIXML_USE_STL +/*static*/ bool TiXmlBase::StreamWhiteSpace( std::istream * in, TIXML_STRING * tag ) +{ + for( ;; ) + { + if ( !in->good() ) return false; + + int c = in->peek(); + // At this scope, we can't get to a document. So fail silently. + if ( !IsWhiteSpace( c ) || c <= 0 ) + return true; + + *tag += (char) in->get(); + } +} + +/*static*/ bool TiXmlBase::StreamTo( std::istream * in, int character, TIXML_STRING * tag ) +{ + //assert( character > 0 && character < 128 ); // else it won't work in utf-8 + while ( in->good() ) + { + int c = in->peek(); + if ( c == character ) + return true; + if ( c <= 0 ) // Silent failure: can't get document at this scope + return false; + + in->get(); + *tag += (char) c; + } + return false; +} +#endif + +// One of TinyXML's more performance demanding functions. Try to keep the memory overhead down. The +// "assign" optimization removes over 10% of the execution time. +// +const char* TiXmlBase::ReadName( const char* p, TIXML_STRING * name, TiXmlEncoding encoding ) +{ + // Oddly, not supported on some comilers, + //name->clear(); + // So use this: + *name = ""; + assert( p ); + + // Names start with letters or underscores. + // Of course, in unicode, tinyxml has no idea what a letter *is*. The + // algorithm is generous. + // + // After that, they can be letters, underscores, numbers, + // hyphens, or colons. (Colons are valid ony for namespaces, + // but tinyxml can't tell namespaces from names.) + if ( p && *p + && ( IsAlpha( (unsigned char) *p, encoding ) || *p == '_' ) ) + { + const char* start = p; + while( p && *p + && ( IsAlphaNum( (unsigned char ) *p, encoding ) + || *p == '_' + || *p == '-' + || *p == '.' + || *p == ':' ) ) + { + //(*name) += *p; // expensive + ++p; + } + if ( p-start > 0 ) { + name->assign( start, p-start ); + } + return p; + } + return 0; +} + +const char* TiXmlBase::GetEntity( const char* p, char* value, int* length, TiXmlEncoding encoding ) +{ + // Presume an entity, and pull it out. + TIXML_STRING ent; + int i; + *length = 0; + + if ( *(p+1) && *(p+1) == '#' && *(p+2) ) + { + unsigned long ucs = 0; + ptrdiff_t delta = 0; + unsigned mult = 1; + + if ( *(p+2) == 'x' ) + { + // Hexadecimal. + if ( !*(p+3) ) return 0; + + const char* q = p+3; + q = strchr( q, ';' ); + + if ( !q || !*q ) return 0; + + delta = q-p; + --q; + + while ( *q != 'x' ) + { + if ( *q >= '0' && *q <= '9' ) + ucs += mult * (*q - '0'); + else if ( *q >= 'a' && *q <= 'f' ) + ucs += mult * (*q - 'a' + 10); + else if ( *q >= 'A' && *q <= 'F' ) + ucs += mult * (*q - 'A' + 10 ); + else + return 0; + mult *= 16; + --q; + } + } + else + { + // Decimal. + if ( !*(p+2) ) return 0; + + const char* q = p+2; + q = strchr( q, ';' ); + + if ( !q || !*q ) return 0; + + delta = q-p; + --q; + + while ( *q != '#' ) + { + if ( *q >= '0' && *q <= '9' ) + ucs += mult * (*q - '0'); + else + return 0; + mult *= 10; + --q; + } + } + if ( encoding == TIXML_ENCODING_UTF8 ) + { + // convert the UCS to UTF-8 + ConvertUTF32ToUTF8( ucs, value, length ); + } + else + { + *value = (char)ucs; + *length = 1; + } + return p + delta + 1; + } + + // Now try to match it. + for( i=0; i<NUM_ENTITY; ++i ) + { + if ( strncmp( entity[i].str, p, entity[i].strLength ) == 0 ) + { + assert( strlen( entity[i].str ) == entity[i].strLength ); + *value = entity[i].chr; + *length = 1; + return ( p + entity[i].strLength ); + } + } + + // So it wasn't an entity, its unrecognized, or something like that. + *value = *p; // Don't put back the last one, since we return it! + //*length = 1; // Leave unrecognized entities - this doesn't really work. + // Just writes strange XML. + return p+1; +} + + +bool TiXmlBase::StringEqual( const char* p, + const char* tag, + bool ignoreCase, + TiXmlEncoding encoding ) +{ + assert( p ); + assert( tag ); + if ( !p || !*p ) + { + assert( 0 ); + return false; + } + + const char* q = p; + + if ( ignoreCase ) + { + while ( *q && *tag && ToLower( *q, encoding ) == ToLower( *tag, encoding ) ) + { + ++q; + ++tag; + } + + if ( *tag == 0 ) + return true; + } + else + { + while ( *q && *tag && *q == *tag ) + { + ++q; + ++tag; + } + + if ( *tag == 0 ) // Have we found the end of the tag, and everything equal? + return true; + } + return false; +} + +const char* TiXmlBase::ReadText( const char* p, + TIXML_STRING * text, + bool trimWhiteSpace, + const char* endTag, + bool caseInsensitive, + TiXmlEncoding encoding ) +{ + *text = ""; + if ( !trimWhiteSpace // certain tags always keep whitespace + || !condenseWhiteSpace ) // if true, whitespace is always kept + { + // Keep all the white space. + while ( p && *p + && !StringEqual( p, endTag, caseInsensitive, encoding ) + ) + { + int len; + char cArr[4] = { 0, 0, 0, 0 }; + p = GetChar( p, cArr, &len, encoding ); + text->append( cArr, len ); + } + } + else + { + bool whitespace = false; + + // Remove leading white space: + p = SkipWhiteSpace( p, encoding ); + while ( p && *p + && !StringEqual( p, endTag, caseInsensitive, encoding ) ) + { + if ( *p == '\r' || *p == '\n' ) + { + whitespace = true; + ++p; + } + else if ( IsWhiteSpace( *p ) ) + { + whitespace = true; + ++p; + } + else + { + // If we've found whitespace, add it before the + // new character. Any whitespace just becomes a space. + if ( whitespace ) + { + (*text) += ' '; + whitespace = false; + } + int len; + char cArr[4] = { 0, 0, 0, 0 }; + p = GetChar( p, cArr, &len, encoding ); + if ( len == 1 ) + (*text) += cArr[0]; // more efficient + else + text->append( cArr, len ); + } + } + } + if ( p && *p ) + p += strlen( endTag ); + return ( p && *p ) ? p : 0; +} + +#ifdef TIXML_USE_STL + +void TiXmlDocument::StreamIn( std::istream * in, TIXML_STRING * tag ) +{ + // The basic issue with a document is that we don't know what we're + // streaming. Read something presumed to be a tag (and hope), then + // identify it, and call the appropriate stream method on the tag. + // + // This "pre-streaming" will never read the closing ">" so the + // sub-tag can orient itself. + + if ( !StreamTo( in, '<', tag ) ) + { + SetError( TIXML_ERROR_PARSING_EMPTY, 0, 0, TIXML_ENCODING_UNKNOWN ); + return; + } + + while ( in->good() ) + { + int tagIndex = (int) tag->length(); + while ( in->good() && in->peek() != '>' ) + { + int c = in->get(); + if ( c <= 0 ) + { + SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); + break; + } + (*tag) += (char) c; + } + + if ( in->good() ) + { + // We now have something we presume to be a node of + // some sort. Identify it, and call the node to + // continue streaming. + TiXmlNode* node = Identify( tag->c_str() + tagIndex, TIXML_DEFAULT_ENCODING ); + + if ( node ) + { + node->StreamIn( in, tag ); + bool isElement = node->ToElement() != 0; + delete node; + node = 0; + + // If this is the root element, we're done. Parsing will be + // done by the >> operator. + if ( isElement ) + { + return; + } + } + else + { + SetError( TIXML_ERROR, 0, 0, TIXML_ENCODING_UNKNOWN ); + return; + } + } + } + // We should have returned sooner. + SetError( TIXML_ERROR, 0, 0, TIXML_ENCODING_UNKNOWN ); +} + +#endif + +const char* TiXmlDocument::Parse( const char* p, TiXmlParsingData* prevData, TiXmlEncoding encoding ) +{ + ClearError(); + + // Parse away, at the document level. Since a document + // contains nothing but other tags, most of what happens + // here is skipping white space. + if ( !p || !*p ) + { + SetError( TIXML_ERROR_DOCUMENT_EMPTY, 0, 0, TIXML_ENCODING_UNKNOWN ); + return 0; + } + + // Note that, for a document, this needs to come + // before the while space skip, so that parsing + // starts from the pointer we are given. + location.Clear(); + if ( prevData ) + { + location.row = prevData->cursor.row; + location.col = prevData->cursor.col; + } + else + { + location.row = 0; + location.col = 0; + } + TiXmlParsingData data( p, TabSize(), location.row, location.col ); + location = data.Cursor(); + + if ( encoding == TIXML_ENCODING_UNKNOWN ) + { + // Check for the Microsoft UTF-8 lead bytes. + const unsigned char* pU = (const unsigned char*)p; + if ( *(pU+0) && *(pU+0) == TIXML_UTF_LEAD_0 + && *(pU+1) && *(pU+1) == TIXML_UTF_LEAD_1 + && *(pU+2) && *(pU+2) == TIXML_UTF_LEAD_2 ) + { + encoding = TIXML_ENCODING_UTF8; + useMicrosoftBOM = true; + } + } + + p = SkipWhiteSpace( p, encoding ); + if ( !p ) + { + SetError( TIXML_ERROR_DOCUMENT_EMPTY, 0, 0, TIXML_ENCODING_UNKNOWN ); + return 0; + } + + while ( p && *p ) + { + TiXmlNode* node = Identify( p, encoding ); + if ( node ) + { + p = node->Parse( p, &data, encoding ); + LinkEndChild( node ); + } + else + { + break; + } + + // Did we get encoding info? + if ( encoding == TIXML_ENCODING_UNKNOWN + && node->ToDeclaration() ) + { + TiXmlDeclaration* dec = node->ToDeclaration(); + const char* enc = dec->Encoding(); + assert( enc ); + + if ( *enc == 0 ) + encoding = TIXML_ENCODING_UTF8; + else if ( StringEqual( enc, "UTF-8", true, TIXML_ENCODING_UNKNOWN ) ) + encoding = TIXML_ENCODING_UTF8; + else if ( StringEqual( enc, "UTF8", true, TIXML_ENCODING_UNKNOWN ) ) + encoding = TIXML_ENCODING_UTF8; // incorrect, but be nice + else + encoding = TIXML_ENCODING_LEGACY; + } + + p = SkipWhiteSpace( p, encoding ); + } + + // Was this empty? + if ( !firstChild ) { + SetError( TIXML_ERROR_DOCUMENT_EMPTY, 0, 0, encoding ); + return 0; + } + + // All is well. + return p; +} + +void TiXmlDocument::SetError( int err, const char* pError, TiXmlParsingData* data, TiXmlEncoding encoding ) +{ + // The first error in a chain is more accurate - don't set again! + if ( error ) + return; + + assert( err > 0 && err < TIXML_ERROR_STRING_COUNT ); + error = true; + errorId = err; + errorDesc = errorString[ errorId ]; + + errorLocation.Clear(); + if ( pError && data ) + { + data->Stamp( pError, encoding ); + errorLocation = data->Cursor(); + } +} + + +TiXmlNode* TiXmlNode::Identify( const char* p, TiXmlEncoding encoding ) +{ + TiXmlNode* returnNode = 0; + + p = SkipWhiteSpace( p, encoding ); + if( !p || !*p || *p != '<' ) + { + return 0; + } + + p = SkipWhiteSpace( p, encoding ); + + if ( !p || !*p ) + { + return 0; + } + + // What is this thing? + // - Elements start with a letter or underscore, but xml is reserved. + // - Comments: <!-- + // - Decleration: <?xml + // - Everthing else is unknown to tinyxml. + // + + const char* xmlHeader = { "<?xml" }; + const char* commentHeader = { "<!--" }; + const char* dtdHeader = { "<!" }; + const char* cdataHeader = { "<![CDATA[" }; + + if ( StringEqual( p, xmlHeader, true, encoding ) ) + { + #ifdef DEBUG_PARSER + TIXML_LOG( "XML parsing Declaration\n" ); + #endif + returnNode = new TiXmlDeclaration(); + } + else if ( StringEqual( p, commentHeader, false, encoding ) ) + { + #ifdef DEBUG_PARSER + TIXML_LOG( "XML parsing Comment\n" ); + #endif + returnNode = new TiXmlComment(); + } + else if ( StringEqual( p, cdataHeader, false, encoding ) ) + { + #ifdef DEBUG_PARSER + TIXML_LOG( "XML parsing CDATA\n" ); + #endif + TiXmlText* text = new TiXmlText( "" ); + text->SetCDATA( true ); + returnNode = text; + } + else if ( StringEqual( p, dtdHeader, false, encoding ) ) + { + #ifdef DEBUG_PARSER + TIXML_LOG( "XML parsing Unknown(1)\n" ); + #endif + returnNode = new TiXmlUnknown(); + } + else if ( IsAlpha( *(p+1), encoding ) + || *(p+1) == '_' ) + { + #ifdef DEBUG_PARSER + TIXML_LOG( "XML parsing Element\n" ); + #endif + returnNode = new TiXmlElement( "" ); + } + else + { + #ifdef DEBUG_PARSER + TIXML_LOG( "XML parsing Unknown(2)\n" ); + #endif + returnNode = new TiXmlUnknown(); + } + + if ( returnNode ) + { + // Set the parent, so it can report errors + returnNode->parent = this; + } + return returnNode; +} + +#ifdef TIXML_USE_STL + +void TiXmlElement::StreamIn (std::istream * in, TIXML_STRING * tag) +{ + // We're called with some amount of pre-parsing. That is, some of "this" + // element is in "tag". Go ahead and stream to the closing ">" + while( in->good() ) + { + int c = in->get(); + if ( c <= 0 ) + { + TiXmlDocument* document = GetDocument(); + if ( document ) + document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); + return; + } + (*tag) += (char) c ; + + if ( c == '>' ) + break; + } + + if ( tag->length() < 3 ) return; + + // Okay...if we are a "/>" tag, then we're done. We've read a complete tag. + // If not, identify and stream. + + if ( tag->at( tag->length() - 1 ) == '>' + && tag->at( tag->length() - 2 ) == '/' ) + { + // All good! + return; + } + else if ( tag->at( tag->length() - 1 ) == '>' ) + { + // There is more. Could be: + // text + // cdata text (which looks like another node) + // closing tag + // another node. + for ( ;; ) + { + StreamWhiteSpace( in, tag ); + + // Do we have text? + if ( in->good() && in->peek() != '<' ) + { + // Yep, text. + TiXmlText text( "" ); + text.StreamIn( in, tag ); + + // What follows text is a closing tag or another node. + // Go around again and figure it out. + continue; + } + + // We now have either a closing tag...or another node. + // We should be at a "<", regardless. + if ( !in->good() ) return; + assert( in->peek() == '<' ); + int tagIndex = (int) tag->length(); + + bool closingTag = false; + bool firstCharFound = false; + + for( ;; ) + { + if ( !in->good() ) + return; + + int c = in->peek(); + if ( c <= 0 ) + { + TiXmlDocument* document = GetDocument(); + if ( document ) + document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); + return; + } + + if ( c == '>' ) + break; + + *tag += (char) c; + in->get(); + + // Early out if we find the CDATA id. + if ( c == '[' && tag->size() >= 9 ) + { + size_t len = tag->size(); + const char* start = tag->c_str() + len - 9; + if ( strcmp( start, "<![CDATA[" ) == 0 ) { + assert( !closingTag ); + break; + } + } + + if ( !firstCharFound && c != '<' && !IsWhiteSpace( c ) ) + { + firstCharFound = true; + if ( c == '/' ) + closingTag = true; + } + } + // If it was a closing tag, then read in the closing '>' to clean up the input stream. + // If it was not, the streaming will be done by the tag. + if ( closingTag ) + { + if ( !in->good() ) + return; + + int c = in->get(); + if ( c <= 0 ) + { + TiXmlDocument* document = GetDocument(); + if ( document ) + document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); + return; + } + assert( c == '>' ); + *tag += (char) c; + + // We are done, once we've found our closing tag. + return; + } + else + { + // If not a closing tag, id it, and stream. + const char* tagloc = tag->c_str() + tagIndex; + TiXmlNode* node = Identify( tagloc, TIXML_DEFAULT_ENCODING ); + if ( !node ) + return; + node->StreamIn( in, tag ); + delete node; + node = 0; + + // No return: go around from the beginning: text, closing tag, or node. + } + } + } +} +#endif + +const char* TiXmlElement::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) +{ + p = SkipWhiteSpace( p, encoding ); + TiXmlDocument* document = GetDocument(); + + if ( !p || !*p ) + { + if ( document ) document->SetError( TIXML_ERROR_PARSING_ELEMENT, 0, 0, encoding ); + return 0; + } + + if ( data ) + { + data->Stamp( p, encoding ); + location = data->Cursor(); + } + + if ( *p != '<' ) + { + if ( document ) document->SetError( TIXML_ERROR_PARSING_ELEMENT, p, data, encoding ); + return 0; + } + + p = SkipWhiteSpace( p+1, encoding ); + + // Read the name. + const char* pErr = p; + + p = ReadName( p, &value, encoding ); + if ( !p || !*p ) + { + if ( document ) document->SetError( TIXML_ERROR_FAILED_TO_READ_ELEMENT_NAME, pErr, data, encoding ); + return 0; + } + + TIXML_STRING endTag ("</"); + endTag += value; + + // Check for and read attributes. Also look for an empty + // tag or an end tag. + while ( p && *p ) + { + pErr = p; + p = SkipWhiteSpace( p, encoding ); + if ( !p || !*p ) + { + if ( document ) document->SetError( TIXML_ERROR_READING_ATTRIBUTES, pErr, data, encoding ); + return 0; + } + if ( *p == '/' ) + { + ++p; + // Empty tag. + if ( *p != '>' ) + { + if ( document ) document->SetError( TIXML_ERROR_PARSING_EMPTY, p, data, encoding ); + return 0; + } + return (p+1); + } + else if ( *p == '>' ) + { + // Done with attributes (if there were any.) + // Read the value -- which can include other + // elements -- read the end tag, and return. + ++p; + p = ReadValue( p, data, encoding ); // Note this is an Element method, and will set the error if one happens. + if ( !p || !*p ) { + // We were looking for the end tag, but found nothing. + // Fix for [ 1663758 ] Failure to report error on bad XML + if ( document ) document->SetError( TIXML_ERROR_READING_END_TAG, p, data, encoding ); + return 0; + } + + // We should find the end tag now + // note that: + // </foo > and + // </foo> + // are both valid end tags. + if ( StringEqual( p, endTag.c_str(), false, encoding ) ) + { + p += endTag.length(); + p = SkipWhiteSpace( p, encoding ); + if ( p && *p && *p == '>' ) { + ++p; + return p; + } + if ( document ) document->SetError( TIXML_ERROR_READING_END_TAG, p, data, encoding ); + return 0; + } + else + { + if ( document ) document->SetError( TIXML_ERROR_READING_END_TAG, p, data, encoding ); + return 0; + } + } + else + { + // Try to read an attribute: + TiXmlAttribute* attrib = new TiXmlAttribute(); + if ( !attrib ) + { + return 0; + } + + attrib->SetDocument( document ); + pErr = p; + p = attrib->Parse( p, data, encoding ); + + if ( !p || !*p ) + { + if ( document ) document->SetError( TIXML_ERROR_PARSING_ELEMENT, pErr, data, encoding ); + delete attrib; + return 0; + } + + // Handle the strange case of double attributes: + #ifdef TIXML_USE_STL + TiXmlAttribute* node = attributeSet.Find( attrib->NameTStr() ); + #else + TiXmlAttribute* node = attributeSet.Find( attrib->Name() ); + #endif + if ( node ) + { + if ( document ) document->SetError( TIXML_ERROR_PARSING_ELEMENT, pErr, data, encoding ); + delete attrib; + return 0; + } + + attributeSet.Add( attrib ); + } + } + return p; +} + + +const char* TiXmlElement::ReadValue( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) +{ + TiXmlDocument* document = GetDocument(); + + // Read in text and elements in any order. + const char* pWithWhiteSpace = p; + p = SkipWhiteSpace( p, encoding ); + + while ( p && *p ) + { + if ( *p != '<' ) + { + // Take what we have, make a text element. + TiXmlText* textNode = new TiXmlText( "" ); + + if ( !textNode ) + { + return 0; + } + + if ( TiXmlBase::IsWhiteSpaceCondensed() ) + { + p = textNode->Parse( p, data, encoding ); + } + else + { + // Special case: we want to keep the white space + // so that leading spaces aren't removed. + p = textNode->Parse( pWithWhiteSpace, data, encoding ); + } + + if ( !textNode->Blank() ) + LinkEndChild( textNode ); + else + delete textNode; + } + else + { + // We hit a '<' + // Have we hit a new element or an end tag? This could also be + // a TiXmlText in the "CDATA" style. + if ( StringEqual( p, "</", false, encoding ) ) + { + return p; + } + else + { + TiXmlNode* node = Identify( p, encoding ); + if ( node ) + { + p = node->Parse( p, data, encoding ); + LinkEndChild( node ); + } + else + { + return 0; + } + } + } + pWithWhiteSpace = p; + p = SkipWhiteSpace( p, encoding ); + } + + if ( !p ) + { + if ( document ) document->SetError( TIXML_ERROR_READING_ELEMENT_VALUE, 0, 0, encoding ); + } + return p; +} + + +#ifdef TIXML_USE_STL +void TiXmlUnknown::StreamIn( std::istream * in, TIXML_STRING * tag ) +{ + while ( in->good() ) + { + int c = in->get(); + if ( c <= 0 ) + { + TiXmlDocument* document = GetDocument(); + if ( document ) + document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); + return; + } + (*tag) += (char) c; + + if ( c == '>' ) + { + // All is well. + return; + } + } +} +#endif + + +const char* TiXmlUnknown::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) +{ + TiXmlDocument* document = GetDocument(); + p = SkipWhiteSpace( p, encoding ); + + if ( data ) + { + data->Stamp( p, encoding ); + location = data->Cursor(); + } + if ( !p || !*p || *p != '<' ) + { + if ( document ) document->SetError( TIXML_ERROR_PARSING_UNKNOWN, p, data, encoding ); + return 0; + } + ++p; + value = ""; + + while ( p && *p && *p != '>' ) + { + value += *p; + ++p; + } + + if ( !p ) + { + if ( document ) + document->SetError( TIXML_ERROR_PARSING_UNKNOWN, 0, 0, encoding ); + } + if ( p && *p == '>' ) + return p+1; + return p; +} + +#ifdef TIXML_USE_STL +void TiXmlComment::StreamIn( std::istream * in, TIXML_STRING * tag ) +{ + while ( in->good() ) + { + int c = in->get(); + if ( c <= 0 ) + { + TiXmlDocument* document = GetDocument(); + if ( document ) + document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); + return; + } + + (*tag) += (char) c; + + if ( c == '>' + && tag->at( tag->length() - 2 ) == '-' + && tag->at( tag->length() - 3 ) == '-' ) + { + // All is well. + return; + } + } +} +#endif + + +const char* TiXmlComment::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) +{ + TiXmlDocument* document = GetDocument(); + value = ""; + + p = SkipWhiteSpace( p, encoding ); + + if ( data ) + { + data->Stamp( p, encoding ); + location = data->Cursor(); + } + const char* startTag = "<!--"; + const char* endTag = "-->"; + + if ( !StringEqual( p, startTag, false, encoding ) ) + { + if ( document ) + document->SetError( TIXML_ERROR_PARSING_COMMENT, p, data, encoding ); + return 0; + } + p += strlen( startTag ); + + // [ 1475201 ] TinyXML parses entities in comments + // Oops - ReadText doesn't work, because we don't want to parse the entities. + // p = ReadText( p, &value, false, endTag, false, encoding ); + // + // from the XML spec: + /* + [Definition: Comments may appear anywhere in a document outside other markup; in addition, + they may appear within the document type declaration at places allowed by the grammar. + They are not part of the document's character data; an XML processor MAY, but need not, + make it possible for an application to retrieve the text of comments. For compatibility, + the string "--" (double-hyphen) MUST NOT occur within comments.] Parameter entity + references MUST NOT be recognized within comments. + + An example of a comment: + + <!-- declarations for <head> & <body> --> + */ + + value = ""; + // Keep all the white space. + while ( p && *p && !StringEqual( p, endTag, false, encoding ) ) + { + value.append( p, 1 ); + ++p; + } + if ( p && *p ) + p += strlen( endTag ); + + return p; +} + + +const char* TiXmlAttribute::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) +{ + p = SkipWhiteSpace( p, encoding ); + if ( !p || !*p ) return 0; + + if ( data ) + { + data->Stamp( p, encoding ); + location = data->Cursor(); + } + // Read the name, the '=' and the value. + const char* pErr = p; + p = ReadName( p, &name, encoding ); + if ( !p || !*p ) + { + if ( document ) document->SetError( TIXML_ERROR_READING_ATTRIBUTES, pErr, data, encoding ); + return 0; + } + p = SkipWhiteSpace( p, encoding ); + if ( !p || !*p || *p != '=' ) + { + if ( document ) document->SetError( TIXML_ERROR_READING_ATTRIBUTES, p, data, encoding ); + return 0; + } + + ++p; // skip '=' + p = SkipWhiteSpace( p, encoding ); + if ( !p || !*p ) + { + if ( document ) document->SetError( TIXML_ERROR_READING_ATTRIBUTES, p, data, encoding ); + return 0; + } + + const char* end; + const char SINGLE_QUOTE = '\''; + const char DOUBLE_QUOTE = '\"'; + + if ( *p == SINGLE_QUOTE ) + { + ++p; + end = "\'"; // single quote in string + p = ReadText( p, &value, false, end, false, encoding ); + } + else if ( *p == DOUBLE_QUOTE ) + { + ++p; + end = "\""; // double quote in string + p = ReadText( p, &value, false, end, false, encoding ); + } + else + { + // All attribute values should be in single or double quotes. + // But this is such a common error that the parser will try + // its best, even without them. + value = ""; + while ( p && *p // existence + && !IsWhiteSpace( *p ) // whitespace + && *p != '/' && *p != '>' ) // tag end + { + if ( *p == SINGLE_QUOTE || *p == DOUBLE_QUOTE ) { + // [ 1451649 ] Attribute values with trailing quotes not handled correctly + // We did not have an opening quote but seem to have a + // closing one. Give up and throw an error. + if ( document ) document->SetError( TIXML_ERROR_READING_ATTRIBUTES, p, data, encoding ); + return 0; + } + value += *p; + ++p; + } + } + return p; +} + +#ifdef TIXML_USE_STL +void TiXmlText::StreamIn( std::istream * in, TIXML_STRING * tag ) +{ + while ( in->good() ) + { + int c = in->peek(); + if ( !cdata && (c == '<' ) ) + { + return; + } + if ( c <= 0 ) + { + TiXmlDocument* document = GetDocument(); + if ( document ) + document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); + return; + } + + (*tag) += (char) c; + in->get(); // "commits" the peek made above + + if ( cdata && c == '>' && tag->size() >= 3 ) { + size_t len = tag->size(); + if ( (*tag)[len-2] == ']' && (*tag)[len-3] == ']' ) { + // terminator of cdata. + return; + } + } + } +} +#endif + +const char* TiXmlText::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) +{ + value = ""; + TiXmlDocument* document = GetDocument(); + + if ( data ) + { + data->Stamp( p, encoding ); + location = data->Cursor(); + } + + const char* const startTag = "<![CDATA["; + const char* const endTag = "]]>"; + + if ( cdata || StringEqual( p, startTag, false, encoding ) ) + { + cdata = true; + + if ( !StringEqual( p, startTag, false, encoding ) ) + { + if ( document ) + document->SetError( TIXML_ERROR_PARSING_CDATA, p, data, encoding ); + return 0; + } + p += strlen( startTag ); + + // Keep all the white space, ignore the encoding, etc. + while ( p && *p + && !StringEqual( p, endTag, false, encoding ) + ) + { + value += *p; + ++p; + } + + TIXML_STRING dummy; + p = ReadText( p, &dummy, false, endTag, false, encoding ); + return p; + } + else + { + bool ignoreWhite = true; + + const char* end = "<"; + p = ReadText( p, &value, ignoreWhite, end, false, encoding ); + if ( p && *p ) + return p-1; // don't truncate the '<' + return 0; + } +} + +#ifdef TIXML_USE_STL +void TiXmlDeclaration::StreamIn( std::istream * in, TIXML_STRING * tag ) +{ + while ( in->good() ) + { + int c = in->get(); + if ( c <= 0 ) + { + TiXmlDocument* document = GetDocument(); + if ( document ) + document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); + return; + } + (*tag) += (char) c; + + if ( c == '>' ) + { + // All is well. + return; + } + } +} +#endif + +const char* TiXmlDeclaration::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding _encoding ) +{ + p = SkipWhiteSpace( p, _encoding ); + // Find the beginning, find the end, and look for + // the stuff in-between. + TiXmlDocument* document = GetDocument(); + if ( !p || !*p || !StringEqual( p, "<?xml", true, _encoding ) ) + { + if ( document ) document->SetError( TIXML_ERROR_PARSING_DECLARATION, 0, 0, _encoding ); + return 0; + } + if ( data ) + { + data->Stamp( p, _encoding ); + location = data->Cursor(); + } + p += 5; + + version = ""; + encoding = ""; + standalone = ""; + + while ( p && *p ) + { + if ( *p == '>' ) + { + ++p; + return p; + } + + p = SkipWhiteSpace( p, _encoding ); + if ( StringEqual( p, "version", true, _encoding ) ) + { + TiXmlAttribute attrib; + p = attrib.Parse( p, data, _encoding ); + version = attrib.Value(); + } + else if ( StringEqual( p, "encoding", true, _encoding ) ) + { + TiXmlAttribute attrib; + p = attrib.Parse( p, data, _encoding ); + encoding = attrib.Value(); + } + else if ( StringEqual( p, "standalone", true, _encoding ) ) + { + TiXmlAttribute attrib; + p = attrib.Parse( p, data, _encoding ); + standalone = attrib.Value(); + } + else + { + // Read over whatever it is. + while( p && *p && *p != '>' && !IsWhiteSpace( *p ) ) + ++p; + } + } + return 0; +} + +bool TiXmlText::Blank() const +{ + for ( unsigned i=0; i<value.length(); i++ ) + if ( !IsWhiteSpace( value[i] ) ) + return false; + return true; +} + |