From 2e069af6036ecb2414aebe20acdaaff86d03c40e Mon Sep 17 00:00:00 2001 From: Bart Trzynadlowski Date: Thu, 7 Jul 2016 05:05:27 +0000 Subject: [PATCH] Adding tinyxml2 lib --- Src/Pkgs/tinyxml2.cpp | 2467 +++++++++++++++++++++++++++++++++++++++++ Src/Pkgs/tinyxml2.h | 2102 +++++++++++++++++++++++++++++++++++ 2 files changed, 4569 insertions(+) create mode 100644 Src/Pkgs/tinyxml2.cpp create mode 100644 Src/Pkgs/tinyxml2.h diff --git a/Src/Pkgs/tinyxml2.cpp b/Src/Pkgs/tinyxml2.cpp new file mode 100644 index 0000000..bfd8d1f --- /dev/null +++ b/Src/Pkgs/tinyxml2.cpp @@ -0,0 +1,2467 @@ +/* +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 "tinyxml2.h" + +#include // yes, this one new style header, is in the Android SDK. +#if defined(ANDROID_NDK) || defined(__BORLANDC__) || defined(__QNXNTO__) +# include +# include +#else +# include +# include +#endif + +#if defined(_MSC_VER) && (_MSC_VER >= 1400 ) && (!defined WINCE) + // Microsoft Visual Studio, version 2005 and higher. Not WinCE. + /*int _snprintf_s( + char *buffer, + size_t sizeOfBuffer, + size_t count, + const char *format [, + argument] ... + );*/ + static inline int TIXML_SNPRINTF( char* buffer, size_t size, const char* format, ... ) + { + va_list va; + va_start( va, format ); + int result = vsnprintf_s( buffer, size, _TRUNCATE, format, va ); + va_end( va ); + return result; + } + + static inline int TIXML_VSNPRINTF( char* buffer, size_t size, const char* format, va_list va ) + { + int result = vsnprintf_s( buffer, size, _TRUNCATE, format, va ); + return result; + } + + #define TIXML_VSCPRINTF _vscprintf + #define TIXML_SSCANF sscanf_s +#elif defined _MSC_VER + // Microsoft Visual Studio 2003 and earlier or WinCE + #define TIXML_SNPRINTF _snprintf + #define TIXML_VSNPRINTF _vsnprintf + #define TIXML_SSCANF sscanf + #if (_MSC_VER < 1400 ) && (!defined WINCE) + // Microsoft Visual Studio 2003 and not WinCE. + #define TIXML_VSCPRINTF _vscprintf // VS2003's C runtime has this, but VC6 C runtime or WinCE SDK doesn't have. + #else + // Microsoft Visual Studio 2003 and earlier or WinCE. + static inline int TIXML_VSCPRINTF( const char* format, va_list va ) + { + int len = 512; + for (;;) { + len = len*2; + char* str = new char[len](); + const int required = _vsnprintf(str, len, format, va); + delete[] str; + if ( required != -1 ) { + TIXMLASSERT( required >= 0 ); + len = required; + break; + } + } + TIXMLASSERT( len >= 0 ); + return len; + } + #endif +#else + // GCC version 3 and higher + //#warning( "Using sn* functions." ) + #define TIXML_SNPRINTF snprintf + #define TIXML_VSNPRINTF vsnprintf + static inline int TIXML_VSCPRINTF( const char* format, va_list va ) + { + int len = vsnprintf( 0, 0, format, va ); + TIXMLASSERT( len >= 0 ); + return len; + } + #define TIXML_SSCANF sscanf +#endif + + +static const char LINE_FEED = (char)0x0a; // all line endings are normalized to LF +static const char LF = LINE_FEED; +static const char CARRIAGE_RETURN = (char)0x0d; // CR gets filtered out +static const char CR = CARRIAGE_RETURN; +static const char SINGLE_QUOTE = '\''; +static const char DOUBLE_QUOTE = '\"'; + +// Bunch of unicode info at: +// http://www.unicode.org/faq/utf_bom.html +// ef bb bf (Microsoft "lead bytes") - designates UTF-8 + +static const unsigned char TIXML_UTF_LEAD_0 = 0xefU; +static const unsigned char TIXML_UTF_LEAD_1 = 0xbbU; +static const unsigned char TIXML_UTF_LEAD_2 = 0xbfU; + +namespace tinyxml2 +{ + +struct Entity { + const char* pattern; + int length; + char value; +}; + +static const int NUM_ENTITIES = 5; +static const Entity entities[NUM_ENTITIES] = { + { "quot", 4, DOUBLE_QUOTE }, + { "amp", 3, '&' }, + { "apos", 4, SINGLE_QUOTE }, + { "lt", 2, '<' }, + { "gt", 2, '>' } +}; + + +StrPair::~StrPair() +{ + Reset(); +} + + +void StrPair::TransferTo( StrPair* other ) +{ + if ( this == other ) { + return; + } + // This in effect implements the assignment operator by "moving" + // ownership (as in auto_ptr). + + TIXMLASSERT( other->_flags == 0 ); + TIXMLASSERT( other->_start == 0 ); + TIXMLASSERT( other->_end == 0 ); + + other->Reset(); + + other->_flags = _flags; + other->_start = _start; + other->_end = _end; + + _flags = 0; + _start = 0; + _end = 0; +} + +void StrPair::Reset() +{ + if ( _flags & NEEDS_DELETE ) { + delete [] _start; + } + _flags = 0; + _start = 0; + _end = 0; +} + + +void StrPair::SetStr( const char* str, int flags ) +{ + TIXMLASSERT( str ); + Reset(); + size_t len = strlen( str ); + TIXMLASSERT( _start == 0 ); + _start = new char[ len+1 ]; + memcpy( _start, str, len+1 ); + _end = _start + len; + _flags = flags | NEEDS_DELETE; +} + + +char* StrPair::ParseText( char* p, const char* endTag, int strFlags ) +{ + TIXMLASSERT( endTag && *endTag ); + + char* start = p; + char endChar = *endTag; + size_t length = strlen( endTag ); + + // Inner loop of text parsing. + while ( *p ) { + if ( *p == endChar && strncmp( p, endTag, length ) == 0 ) { + Set( start, p, strFlags ); + return p + length; + } + ++p; + } + return 0; +} + + +char* StrPair::ParseName( char* p ) +{ + if ( !p || !(*p) ) { + return 0; + } + if ( !XMLUtil::IsNameStartChar( *p ) ) { + return 0; + } + + char* const start = p; + ++p; + while ( *p && XMLUtil::IsNameChar( *p ) ) { + ++p; + } + + Set( start, p, 0 ); + return p; +} + + +void StrPair::CollapseWhitespace() +{ + // Adjusting _start would cause undefined behavior on delete[] + TIXMLASSERT( ( _flags & NEEDS_DELETE ) == 0 ); + // Trim leading space. + _start = XMLUtil::SkipWhiteSpace( _start ); + + if ( *_start ) { + char* p = _start; // the read pointer + char* q = _start; // the write pointer + + while( *p ) { + if ( XMLUtil::IsWhiteSpace( *p )) { + p = XMLUtil::SkipWhiteSpace( p ); + if ( *p == 0 ) { + break; // don't write to q; this trims the trailing space. + } + *q = ' '; + ++q; + } + *q = *p; + ++q; + ++p; + } + *q = 0; + } +} + + +const char* StrPair::GetStr() +{ + TIXMLASSERT( _start ); + TIXMLASSERT( _end ); + if ( _flags & NEEDS_FLUSH ) { + *_end = 0; + _flags ^= NEEDS_FLUSH; + + if ( _flags ) { + char* p = _start; // the read pointer + char* q = _start; // the write pointer + + while( p < _end ) { + if ( (_flags & NEEDS_NEWLINE_NORMALIZATION) && *p == CR ) { + // CR-LF pair becomes LF + // CR alone becomes LF + // LF-CR becomes LF + if ( *(p+1) == LF ) { + p += 2; + } + else { + ++p; + } + *q++ = LF; + } + else if ( (_flags & NEEDS_NEWLINE_NORMALIZATION) && *p == LF ) { + if ( *(p+1) == CR ) { + p += 2; + } + else { + ++p; + } + *q++ = LF; + } + else if ( (_flags & NEEDS_ENTITY_PROCESSING) && *p == '&' ) { + // Entities handled by tinyXML2: + // - special entities in the entity table [in/out] + // - numeric character reference [in] + // 中 or 中 + + if ( *(p+1) == '#' ) { + const int buflen = 10; + char buf[buflen] = { 0 }; + int len = 0; + char* adjusted = const_cast( XMLUtil::GetCharacterRef( p, buf, &len ) ); + if ( adjusted == 0 ) { + *q = *p; + ++p; + ++q; + } + else { + TIXMLASSERT( 0 <= len && len <= buflen ); + TIXMLASSERT( q + len <= adjusted ); + p = adjusted; + memcpy( q, buf, len ); + q += len; + } + } + else { + bool entityFound = false; + for( int i = 0; i < NUM_ENTITIES; ++i ) { + const Entity& entity = entities[i]; + if ( strncmp( p + 1, entity.pattern, entity.length ) == 0 + && *( p + entity.length + 1 ) == ';' ) { + // Found an entity - convert. + *q = entity.value; + ++q; + p += entity.length + 2; + entityFound = true; + break; + } + } + if ( !entityFound ) { + // fixme: treat as error? + ++p; + ++q; + } + } + } + else { + *q = *p; + ++p; + ++q; + } + } + *q = 0; + } + // The loop below has plenty going on, and this + // is a less useful mode. Break it out. + if ( _flags & NEEDS_WHITESPACE_COLLAPSING ) { + CollapseWhitespace(); + } + _flags = (_flags & NEEDS_DELETE); + } + TIXMLASSERT( _start ); + return _start; +} + + + + +// --------- XMLUtil ----------- // + +const char* XMLUtil::ReadBOM( const char* p, bool* bom ) +{ + TIXMLASSERT( p ); + TIXMLASSERT( bom ); + *bom = false; + const unsigned char* pu = reinterpret_cast(p); + // Check for BOM: + if ( *(pu+0) == TIXML_UTF_LEAD_0 + && *(pu+1) == TIXML_UTF_LEAD_1 + && *(pu+2) == TIXML_UTF_LEAD_2 ) { + *bom = true; + p += 3; + } + TIXMLASSERT( p ); + return p; +} + + +void XMLUtil::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; // This code won't convert this correctly anyway. + return; + } + + 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]); + break; + default: + TIXMLASSERT( false ); + } +} + + +const char* XMLUtil::GetCharacterRef( const char* p, char* value, int* length ) +{ + // Presume an entity, and pull it out. + *length = 0; + + if ( *(p+1) == '#' && *(p+2) ) { + unsigned long ucs = 0; + TIXMLASSERT( sizeof( ucs ) >= 4 ); + ptrdiff_t delta = 0; + unsigned mult = 1; + static const char SEMICOLON = ';'; + + if ( *(p+2) == 'x' ) { + // Hexadecimal. + const char* q = p+3; + if ( !(*q) ) { + return 0; + } + + q = strchr( q, SEMICOLON ); + + if ( !q ) { + return 0; + } + TIXMLASSERT( *q == SEMICOLON ); + + delta = q-p; + --q; + + while ( *q != 'x' ) { + unsigned int digit = 0; + + if ( *q >= '0' && *q <= '9' ) { + digit = *q - '0'; + } + else if ( *q >= 'a' && *q <= 'f' ) { + digit = *q - 'a' + 10; + } + else if ( *q >= 'A' && *q <= 'F' ) { + digit = *q - 'A' + 10; + } + else { + return 0; + } + TIXMLASSERT( digit < 16 ); + TIXMLASSERT( digit == 0 || mult <= UINT_MAX / digit ); + const unsigned int digitScaled = mult * digit; + TIXMLASSERT( ucs <= ULONG_MAX - digitScaled ); + ucs += digitScaled; + TIXMLASSERT( mult <= UINT_MAX / 16 ); + mult *= 16; + --q; + } + } + else { + // Decimal. + const char* q = p+2; + if ( !(*q) ) { + return 0; + } + + q = strchr( q, SEMICOLON ); + + if ( !q ) { + return 0; + } + TIXMLASSERT( *q == SEMICOLON ); + + delta = q-p; + --q; + + while ( *q != '#' ) { + if ( *q >= '0' && *q <= '9' ) { + const unsigned int digit = *q - '0'; + TIXMLASSERT( digit < 10 ); + TIXMLASSERT( digit == 0 || mult <= UINT_MAX / digit ); + const unsigned int digitScaled = mult * digit; + TIXMLASSERT( ucs <= ULONG_MAX - digitScaled ); + ucs += digitScaled; + } + else { + return 0; + } + TIXMLASSERT( mult <= UINT_MAX / 10 ); + mult *= 10; + --q; + } + } + // convert the UCS to UTF-8 + ConvertUTF32ToUTF8( ucs, value, length ); + return p + delta + 1; + } + return p+1; +} + + +void XMLUtil::ToStr( int v, char* buffer, int bufferSize ) +{ + TIXML_SNPRINTF( buffer, bufferSize, "%d", v ); +} + + +void XMLUtil::ToStr( unsigned v, char* buffer, int bufferSize ) +{ + TIXML_SNPRINTF( buffer, bufferSize, "%u", v ); +} + + +void XMLUtil::ToStr( bool v, char* buffer, int bufferSize ) +{ + TIXML_SNPRINTF( buffer, bufferSize, "%d", v ? 1 : 0 ); +} + +/* + ToStr() of a number is a very tricky topic. + https://github.com/leethomason/tinyxml2/issues/106 +*/ +void XMLUtil::ToStr( float v, char* buffer, int bufferSize ) +{ + TIXML_SNPRINTF( buffer, bufferSize, "%.8g", v ); +} + + +void XMLUtil::ToStr( double v, char* buffer, int bufferSize ) +{ + TIXML_SNPRINTF( buffer, bufferSize, "%.17g", v ); +} + + +bool XMLUtil::ToInt( const char* str, int* value ) +{ + if ( TIXML_SSCANF( str, "%d", value ) == 1 ) { + return true; + } + return false; +} + +bool XMLUtil::ToUnsigned( const char* str, unsigned *value ) +{ + if ( TIXML_SSCANF( str, "%u", value ) == 1 ) { + return true; + } + return false; +} + +bool XMLUtil::ToBool( const char* str, bool* value ) +{ + int ival = 0; + if ( ToInt( str, &ival )) { + *value = (ival==0) ? false : true; + return true; + } + if ( StringEqual( str, "true" ) ) { + *value = true; + return true; + } + else if ( StringEqual( str, "false" ) ) { + *value = false; + return true; + } + return false; +} + + +bool XMLUtil::ToFloat( const char* str, float* value ) +{ + if ( TIXML_SSCANF( str, "%f", value ) == 1 ) { + return true; + } + return false; +} + +bool XMLUtil::ToDouble( const char* str, double* value ) +{ + if ( TIXML_SSCANF( str, "%lf", value ) == 1 ) { + return true; + } + return false; +} + + +char* XMLDocument::Identify( char* p, XMLNode** node ) +{ + TIXMLASSERT( node ); + TIXMLASSERT( p ); + char* const start = p; + p = XMLUtil::SkipWhiteSpace( p ); + if( !*p ) { + *node = 0; + TIXMLASSERT( p ); + return p; + } + + // These strings define the matching patterns: + static const char* xmlHeader = { "_memPool = &_commentPool; + p += xmlHeaderLen; + } + else if ( XMLUtil::StringEqual( p, commentHeader, commentHeaderLen ) ) { + TIXMLASSERT( sizeof( XMLComment ) == _commentPool.ItemSize() ); + returnNode = new (_commentPool.Alloc()) XMLComment( this ); + returnNode->_memPool = &_commentPool; + p += commentHeaderLen; + } + else if ( XMLUtil::StringEqual( p, cdataHeader, cdataHeaderLen ) ) { + TIXMLASSERT( sizeof( XMLText ) == _textPool.ItemSize() ); + XMLText* text = new (_textPool.Alloc()) XMLText( this ); + returnNode = text; + returnNode->_memPool = &_textPool; + p += cdataHeaderLen; + text->SetCData( true ); + } + else if ( XMLUtil::StringEqual( p, dtdHeader, dtdHeaderLen ) ) { + TIXMLASSERT( sizeof( XMLUnknown ) == _commentPool.ItemSize() ); + returnNode = new (_commentPool.Alloc()) XMLUnknown( this ); + returnNode->_memPool = &_commentPool; + p += dtdHeaderLen; + } + else if ( XMLUtil::StringEqual( p, elementHeader, elementHeaderLen ) ) { + TIXMLASSERT( sizeof( XMLElement ) == _elementPool.ItemSize() ); + returnNode = new (_elementPool.Alloc()) XMLElement( this ); + returnNode->_memPool = &_elementPool; + p += elementHeaderLen; + } + else { + TIXMLASSERT( sizeof( XMLText ) == _textPool.ItemSize() ); + returnNode = new (_textPool.Alloc()) XMLText( this ); + returnNode->_memPool = &_textPool; + p = start; // Back it up, all the text counts. + } + + TIXMLASSERT( returnNode ); + TIXMLASSERT( p ); + *node = returnNode; + return p; +} + + +bool XMLDocument::Accept( XMLVisitor* visitor ) const +{ + TIXMLASSERT( visitor ); + if ( visitor->VisitEnter( *this ) ) { + for ( const XMLNode* node=FirstChild(); node; node=node->NextSibling() ) { + if ( !node->Accept( visitor ) ) { + break; + } + } + } + return visitor->VisitExit( *this ); +} + + +// --------- XMLNode ----------- // + +XMLNode::XMLNode( XMLDocument* doc ) : + _document( doc ), + _parent( 0 ), + _firstChild( 0 ), _lastChild( 0 ), + _prev( 0 ), _next( 0 ), + _memPool( 0 ) +{ +} + + +XMLNode::~XMLNode() +{ + DeleteChildren(); + if ( _parent ) { + _parent->Unlink( this ); + } +} + +const char* XMLNode::Value() const +{ + // Catch an edge case: XMLDocuments don't have a a Value. Carefully return nullptr. + if ( this->ToDocument() ) + return 0; + return _value.GetStr(); +} + +void XMLNode::SetValue( const char* str, bool staticMem ) +{ + if ( staticMem ) { + _value.SetInternedStr( str ); + } + else { + _value.SetStr( str ); + } +} + + +void XMLNode::DeleteChildren() +{ + while( _firstChild ) { + TIXMLASSERT( _lastChild ); + TIXMLASSERT( _firstChild->_document == _document ); + XMLNode* node = _firstChild; + Unlink( node ); + + DeleteNode( node ); + } + _firstChild = _lastChild = 0; +} + + +void XMLNode::Unlink( XMLNode* child ) +{ + TIXMLASSERT( child ); + TIXMLASSERT( child->_document == _document ); + TIXMLASSERT( child->_parent == this ); + if ( child == _firstChild ) { + _firstChild = _firstChild->_next; + } + if ( child == _lastChild ) { + _lastChild = _lastChild->_prev; + } + + if ( child->_prev ) { + child->_prev->_next = child->_next; + } + if ( child->_next ) { + child->_next->_prev = child->_prev; + } + child->_parent = 0; +} + + +void XMLNode::DeleteChild( XMLNode* node ) +{ + TIXMLASSERT( node ); + TIXMLASSERT( node->_document == _document ); + TIXMLASSERT( node->_parent == this ); + Unlink( node ); + DeleteNode( node ); +} + + +XMLNode* XMLNode::InsertEndChild( XMLNode* addThis ) +{ + TIXMLASSERT( addThis ); + if ( addThis->_document != _document ) { + TIXMLASSERT( false ); + return 0; + } + InsertChildPreamble( addThis ); + + if ( _lastChild ) { + TIXMLASSERT( _firstChild ); + TIXMLASSERT( _lastChild->_next == 0 ); + _lastChild->_next = addThis; + addThis->_prev = _lastChild; + _lastChild = addThis; + + addThis->_next = 0; + } + else { + TIXMLASSERT( _firstChild == 0 ); + _firstChild = _lastChild = addThis; + + addThis->_prev = 0; + addThis->_next = 0; + } + addThis->_parent = this; + return addThis; +} + + +XMLNode* XMLNode::InsertFirstChild( XMLNode* addThis ) +{ + TIXMLASSERT( addThis ); + if ( addThis->_document != _document ) { + TIXMLASSERT( false ); + return 0; + } + InsertChildPreamble( addThis ); + + if ( _firstChild ) { + TIXMLASSERT( _lastChild ); + TIXMLASSERT( _firstChild->_prev == 0 ); + + _firstChild->_prev = addThis; + addThis->_next = _firstChild; + _firstChild = addThis; + + addThis->_prev = 0; + } + else { + TIXMLASSERT( _lastChild == 0 ); + _firstChild = _lastChild = addThis; + + addThis->_prev = 0; + addThis->_next = 0; + } + addThis->_parent = this; + return addThis; +} + + +XMLNode* XMLNode::InsertAfterChild( XMLNode* afterThis, XMLNode* addThis ) +{ + TIXMLASSERT( addThis ); + if ( addThis->_document != _document ) { + TIXMLASSERT( false ); + return 0; + } + + TIXMLASSERT( afterThis ); + + if ( afterThis->_parent != this ) { + TIXMLASSERT( false ); + return 0; + } + + if ( afterThis->_next == 0 ) { + // The last node or the only node. + return InsertEndChild( addThis ); + } + InsertChildPreamble( addThis ); + addThis->_prev = afterThis; + addThis->_next = afterThis->_next; + afterThis->_next->_prev = addThis; + afterThis->_next = addThis; + addThis->_parent = this; + return addThis; +} + + + + +const XMLElement* XMLNode::FirstChildElement( const char* name ) const +{ + for( const XMLNode* node = _firstChild; node; node = node->_next ) { + const XMLElement* element = node->ToElement(); + if ( element ) { + if ( !name || XMLUtil::StringEqual( element->Name(), name ) ) { + return element; + } + } + } + return 0; +} + + +const XMLElement* XMLNode::LastChildElement( const char* name ) const +{ + for( const XMLNode* node = _lastChild; node; node = node->_prev ) { + const XMLElement* element = node->ToElement(); + if ( element ) { + if ( !name || XMLUtil::StringEqual( element->Name(), name ) ) { + return element; + } + } + } + return 0; +} + + +const XMLElement* XMLNode::NextSiblingElement( const char* name ) const +{ + for( const XMLNode* node = _next; node; node = node->_next ) { + const XMLElement* element = node->ToElement(); + if ( element + && (!name || XMLUtil::StringEqual( name, element->Name() ))) { + return element; + } + } + return 0; +} + + +const XMLElement* XMLNode::PreviousSiblingElement( const char* name ) const +{ + for( const XMLNode* node = _prev; node; node = node->_prev ) { + const XMLElement* element = node->ToElement(); + if ( element + && (!name || XMLUtil::StringEqual( name, element->Name() ))) { + return element; + } + } + return 0; +} + + +char* XMLNode::ParseDeep( char* p, StrPair* parentEnd ) +{ + // This is a recursive method, but thinking about it "at the current level" + // it is a pretty simple flat list: + // + // + // + // With a special case: + // + // + // + // + // Where the closing element (/foo) *must* be the next thing after the opening + // element, and the names must match. BUT the tricky bit is that the closing + // element will be read by the child. + // + // 'endTag' is the end tag for this node, it is returned by a call to a child. + // 'parentEnd' is the end tag for the parent, which is filled in and returned. + + while( p && *p ) { + XMLNode* node = 0; + + p = _document->Identify( p, &node ); + if ( node == 0 ) { + break; + } + + StrPair endTag; + p = node->ParseDeep( p, &endTag ); + if ( !p ) { + DeleteNode( node ); + if ( !_document->Error() ) { + _document->SetError( XML_ERROR_PARSING, 0, 0 ); + } + break; + } + + XMLDeclaration* decl = node->ToDeclaration(); + if ( decl ) { + // A declaration can only be the first child of a document. + // Set error, if document already has children. + if ( !_document->NoChildren() ) { + _document->SetError( XML_ERROR_PARSING_DECLARATION, decl->Value(), 0); + DeleteNode( decl ); + break; + } + } + + XMLElement* ele = node->ToElement(); + if ( ele ) { + // We read the end tag. Return it to the parent. + if ( ele->ClosingType() == XMLElement::CLOSING ) { + if ( parentEnd ) { + ele->_value.TransferTo( parentEnd ); + } + node->_memPool->SetTracked(); // created and then immediately deleted. + DeleteNode( node ); + return p; + } + + // Handle an end tag returned to this level. + // And handle a bunch of annoying errors. + bool mismatch = false; + if ( endTag.Empty() ) { + if ( ele->ClosingType() == XMLElement::OPEN ) { + mismatch = true; + } + } + else { + if ( ele->ClosingType() != XMLElement::OPEN ) { + mismatch = true; + } + else if ( !XMLUtil::StringEqual( endTag.GetStr(), ele->Name() ) ) { + mismatch = true; + } + } + if ( mismatch ) { + _document->SetError( XML_ERROR_MISMATCHED_ELEMENT, ele->Name(), 0 ); + DeleteNode( node ); + break; + } + } + InsertEndChild( node ); + } + return 0; +} + +void XMLNode::DeleteNode( XMLNode* node ) +{ + if ( node == 0 ) { + return; + } + MemPool* pool = node->_memPool; + node->~XMLNode(); + pool->Free( node ); +} + +void XMLNode::InsertChildPreamble( XMLNode* insertThis ) const +{ + TIXMLASSERT( insertThis ); + TIXMLASSERT( insertThis->_document == _document ); + + if ( insertThis->_parent ) + insertThis->_parent->Unlink( insertThis ); + else + insertThis->_memPool->SetTracked(); +} + +// --------- XMLText ---------- // +char* XMLText::ParseDeep( char* p, StrPair* ) +{ + const char* start = p; + if ( this->CData() ) { + p = _value.ParseText( p, "]]>", StrPair::NEEDS_NEWLINE_NORMALIZATION ); + if ( !p ) { + _document->SetError( XML_ERROR_PARSING_CDATA, start, 0 ); + } + return p; + } + else { + int flags = _document->ProcessEntities() ? StrPair::TEXT_ELEMENT : StrPair::TEXT_ELEMENT_LEAVE_ENTITIES; + if ( _document->WhitespaceMode() == COLLAPSE_WHITESPACE ) { + flags |= StrPair::NEEDS_WHITESPACE_COLLAPSING; + } + + p = _value.ParseText( p, "<", flags ); + if ( p && *p ) { + return p-1; + } + if ( !p ) { + _document->SetError( XML_ERROR_PARSING_TEXT, start, 0 ); + } + } + return 0; +} + + +XMLNode* XMLText::ShallowClone( XMLDocument* doc ) const +{ + if ( !doc ) { + doc = _document; + } + XMLText* text = doc->NewText( Value() ); // fixme: this will always allocate memory. Intern? + text->SetCData( this->CData() ); + return text; +} + + +bool XMLText::ShallowEqual( const XMLNode* compare ) const +{ + const XMLText* text = compare->ToText(); + return ( text && XMLUtil::StringEqual( text->Value(), Value() ) ); +} + + +bool XMLText::Accept( XMLVisitor* visitor ) const +{ + TIXMLASSERT( visitor ); + return visitor->Visit( *this ); +} + + +// --------- XMLComment ---------- // + +XMLComment::XMLComment( XMLDocument* doc ) : XMLNode( doc ) +{ +} + + +XMLComment::~XMLComment() +{ +} + + +char* XMLComment::ParseDeep( char* p, StrPair* ) +{ + // Comment parses as text. + const char* start = p; + p = _value.ParseText( p, "-->", StrPair::COMMENT ); + if ( p == 0 ) { + _document->SetError( XML_ERROR_PARSING_COMMENT, start, 0 ); + } + return p; +} + + +XMLNode* XMLComment::ShallowClone( XMLDocument* doc ) const +{ + if ( !doc ) { + doc = _document; + } + XMLComment* comment = doc->NewComment( Value() ); // fixme: this will always allocate memory. Intern? + return comment; +} + + +bool XMLComment::ShallowEqual( const XMLNode* compare ) const +{ + TIXMLASSERT( compare ); + const XMLComment* comment = compare->ToComment(); + return ( comment && XMLUtil::StringEqual( comment->Value(), Value() )); +} + + +bool XMLComment::Accept( XMLVisitor* visitor ) const +{ + TIXMLASSERT( visitor ); + return visitor->Visit( *this ); +} + + +// --------- XMLDeclaration ---------- // + +XMLDeclaration::XMLDeclaration( XMLDocument* doc ) : XMLNode( doc ) +{ +} + + +XMLDeclaration::~XMLDeclaration() +{ + //printf( "~XMLDeclaration\n" ); +} + + +char* XMLDeclaration::ParseDeep( char* p, StrPair* ) +{ + // Declaration parses as text. + const char* start = p; + p = _value.ParseText( p, "?>", StrPair::NEEDS_NEWLINE_NORMALIZATION ); + if ( p == 0 ) { + _document->SetError( XML_ERROR_PARSING_DECLARATION, start, 0 ); + } + return p; +} + + +XMLNode* XMLDeclaration::ShallowClone( XMLDocument* doc ) const +{ + if ( !doc ) { + doc = _document; + } + XMLDeclaration* dec = doc->NewDeclaration( Value() ); // fixme: this will always allocate memory. Intern? + return dec; +} + + +bool XMLDeclaration::ShallowEqual( const XMLNode* compare ) const +{ + TIXMLASSERT( compare ); + const XMLDeclaration* declaration = compare->ToDeclaration(); + return ( declaration && XMLUtil::StringEqual( declaration->Value(), Value() )); +} + + + +bool XMLDeclaration::Accept( XMLVisitor* visitor ) const +{ + TIXMLASSERT( visitor ); + return visitor->Visit( *this ); +} + +// --------- XMLUnknown ---------- // + +XMLUnknown::XMLUnknown( XMLDocument* doc ) : XMLNode( doc ) +{ +} + + +XMLUnknown::~XMLUnknown() +{ +} + + +char* XMLUnknown::ParseDeep( char* p, StrPair* ) +{ + // Unknown parses as text. + const char* start = p; + + p = _value.ParseText( p, ">", StrPair::NEEDS_NEWLINE_NORMALIZATION ); + if ( !p ) { + _document->SetError( XML_ERROR_PARSING_UNKNOWN, start, 0 ); + } + return p; +} + + +XMLNode* XMLUnknown::ShallowClone( XMLDocument* doc ) const +{ + if ( !doc ) { + doc = _document; + } + XMLUnknown* text = doc->NewUnknown( Value() ); // fixme: this will always allocate memory. Intern? + return text; +} + + +bool XMLUnknown::ShallowEqual( const XMLNode* compare ) const +{ + TIXMLASSERT( compare ); + const XMLUnknown* unknown = compare->ToUnknown(); + return ( unknown && XMLUtil::StringEqual( unknown->Value(), Value() )); +} + + +bool XMLUnknown::Accept( XMLVisitor* visitor ) const +{ + TIXMLASSERT( visitor ); + return visitor->Visit( *this ); +} + +// --------- XMLAttribute ---------- // + +const char* XMLAttribute::Name() const +{ + return _name.GetStr(); +} + +const char* XMLAttribute::Value() const +{ + return _value.GetStr(); +} + +char* XMLAttribute::ParseDeep( char* p, bool processEntities ) +{ + // Parse using the name rules: bug fix, was using ParseText before + p = _name.ParseName( p ); + if ( !p || !*p ) { + return 0; + } + + // Skip white space before = + p = XMLUtil::SkipWhiteSpace( p ); + if ( *p != '=' ) { + return 0; + } + + ++p; // move up to opening quote + p = XMLUtil::SkipWhiteSpace( p ); + if ( *p != '\"' && *p != '\'' ) { + return 0; + } + + char endTag[2] = { *p, 0 }; + ++p; // move past opening quote + + p = _value.ParseText( p, endTag, processEntities ? StrPair::ATTRIBUTE_VALUE : StrPair::ATTRIBUTE_VALUE_LEAVE_ENTITIES ); + return p; +} + + +void XMLAttribute::SetName( const char* n ) +{ + _name.SetStr( n ); +} + + +XMLError XMLAttribute::QueryIntValue( int* value ) const +{ + if ( XMLUtil::ToInt( Value(), value )) { + return XML_SUCCESS; + } + return XML_WRONG_ATTRIBUTE_TYPE; +} + + +XMLError XMLAttribute::QueryUnsignedValue( unsigned int* value ) const +{ + if ( XMLUtil::ToUnsigned( Value(), value )) { + return XML_SUCCESS; + } + return XML_WRONG_ATTRIBUTE_TYPE; +} + + +XMLError XMLAttribute::QueryBoolValue( bool* value ) const +{ + if ( XMLUtil::ToBool( Value(), value )) { + return XML_SUCCESS; + } + return XML_WRONG_ATTRIBUTE_TYPE; +} + + +XMLError XMLAttribute::QueryFloatValue( float* value ) const +{ + if ( XMLUtil::ToFloat( Value(), value )) { + return XML_SUCCESS; + } + return XML_WRONG_ATTRIBUTE_TYPE; +} + + +XMLError XMLAttribute::QueryDoubleValue( double* value ) const +{ + if ( XMLUtil::ToDouble( Value(), value )) { + return XML_SUCCESS; + } + return XML_WRONG_ATTRIBUTE_TYPE; +} + + +void XMLAttribute::SetAttribute( const char* v ) +{ + _value.SetStr( v ); +} + + +void XMLAttribute::SetAttribute( int v ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( v, buf, BUF_SIZE ); + _value.SetStr( buf ); +} + + +void XMLAttribute::SetAttribute( unsigned v ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( v, buf, BUF_SIZE ); + _value.SetStr( buf ); +} + + +void XMLAttribute::SetAttribute( bool v ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( v, buf, BUF_SIZE ); + _value.SetStr( buf ); +} + +void XMLAttribute::SetAttribute( double v ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( v, buf, BUF_SIZE ); + _value.SetStr( buf ); +} + +void XMLAttribute::SetAttribute( float v ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( v, buf, BUF_SIZE ); + _value.SetStr( buf ); +} + + +// --------- XMLElement ---------- // +XMLElement::XMLElement( XMLDocument* doc ) : XMLNode( doc ), + _closingType( 0 ), + _rootAttribute( 0 ) +{ +} + + +XMLElement::~XMLElement() +{ + while( _rootAttribute ) { + XMLAttribute* next = _rootAttribute->_next; + DeleteAttribute( _rootAttribute ); + _rootAttribute = next; + } +} + + +const XMLAttribute* XMLElement::FindAttribute( const char* name ) const +{ + for( XMLAttribute* a = _rootAttribute; a; a = a->_next ) { + if ( XMLUtil::StringEqual( a->Name(), name ) ) { + return a; + } + } + return 0; +} + + +const char* XMLElement::Attribute( const char* name, const char* value ) const +{ + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return 0; + } + if ( !value || XMLUtil::StringEqual( a->Value(), value )) { + return a->Value(); + } + return 0; +} + + +const char* XMLElement::GetText() const +{ + if ( FirstChild() && FirstChild()->ToText() ) { + return FirstChild()->Value(); + } + return 0; +} + + +void XMLElement::SetText( const char* inText ) +{ + if ( FirstChild() && FirstChild()->ToText() ) + FirstChild()->SetValue( inText ); + else { + XMLText* theText = GetDocument()->NewText( inText ); + InsertFirstChild( theText ); + } +} + + +void XMLElement::SetText( int v ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( v, buf, BUF_SIZE ); + SetText( buf ); +} + + +void XMLElement::SetText( unsigned v ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( v, buf, BUF_SIZE ); + SetText( buf ); +} + + +void XMLElement::SetText( bool v ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( v, buf, BUF_SIZE ); + SetText( buf ); +} + + +void XMLElement::SetText( float v ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( v, buf, BUF_SIZE ); + SetText( buf ); +} + + +void XMLElement::SetText( double v ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( v, buf, BUF_SIZE ); + SetText( buf ); +} + + +XMLError XMLElement::QueryIntText( int* ival ) const +{ + if ( FirstChild() && FirstChild()->ToText() ) { + const char* t = FirstChild()->Value(); + if ( XMLUtil::ToInt( t, ival ) ) { + return XML_SUCCESS; + } + return XML_CAN_NOT_CONVERT_TEXT; + } + return XML_NO_TEXT_NODE; +} + + +XMLError XMLElement::QueryUnsignedText( unsigned* uval ) const +{ + if ( FirstChild() && FirstChild()->ToText() ) { + const char* t = FirstChild()->Value(); + if ( XMLUtil::ToUnsigned( t, uval ) ) { + return XML_SUCCESS; + } + return XML_CAN_NOT_CONVERT_TEXT; + } + return XML_NO_TEXT_NODE; +} + + +XMLError XMLElement::QueryBoolText( bool* bval ) const +{ + if ( FirstChild() && FirstChild()->ToText() ) { + const char* t = FirstChild()->Value(); + if ( XMLUtil::ToBool( t, bval ) ) { + return XML_SUCCESS; + } + return XML_CAN_NOT_CONVERT_TEXT; + } + return XML_NO_TEXT_NODE; +} + + +XMLError XMLElement::QueryDoubleText( double* dval ) const +{ + if ( FirstChild() && FirstChild()->ToText() ) { + const char* t = FirstChild()->Value(); + if ( XMLUtil::ToDouble( t, dval ) ) { + return XML_SUCCESS; + } + return XML_CAN_NOT_CONVERT_TEXT; + } + return XML_NO_TEXT_NODE; +} + + +XMLError XMLElement::QueryFloatText( float* fval ) const +{ + if ( FirstChild() && FirstChild()->ToText() ) { + const char* t = FirstChild()->Value(); + if ( XMLUtil::ToFloat( t, fval ) ) { + return XML_SUCCESS; + } + return XML_CAN_NOT_CONVERT_TEXT; + } + return XML_NO_TEXT_NODE; +} + + + +XMLAttribute* XMLElement::FindOrCreateAttribute( const char* name ) +{ + XMLAttribute* last = 0; + XMLAttribute* attrib = 0; + for( attrib = _rootAttribute; + attrib; + last = attrib, attrib = attrib->_next ) { + if ( XMLUtil::StringEqual( attrib->Name(), name ) ) { + break; + } + } + if ( !attrib ) { + TIXMLASSERT( sizeof( XMLAttribute ) == _document->_attributePool.ItemSize() ); + attrib = new (_document->_attributePool.Alloc() ) XMLAttribute(); + attrib->_memPool = &_document->_attributePool; + if ( last ) { + last->_next = attrib; + } + else { + _rootAttribute = attrib; + } + attrib->SetName( name ); + attrib->_memPool->SetTracked(); // always created and linked. + } + return 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; + } + DeleteAttribute( a ); + break; + } + prev = a; + } +} + + +char* XMLElement::ParseAttributes( char* p ) +{ + const char* start = p; + XMLAttribute* prevAttribute = 0; + + // Read the attributes. + while( p ) { + p = XMLUtil::SkipWhiteSpace( p ); + if ( !(*p) ) { + _document->SetError( XML_ERROR_PARSING_ELEMENT, start, Name() ); + return 0; + } + + // attribute. + if (XMLUtil::IsNameStartChar( *p ) ) { + TIXMLASSERT( sizeof( XMLAttribute ) == _document->_attributePool.ItemSize() ); + XMLAttribute* attrib = new (_document->_attributePool.Alloc() ) XMLAttribute(); + attrib->_memPool = &_document->_attributePool; + attrib->_memPool->SetTracked(); + + p = attrib->ParseDeep( p, _document->ProcessEntities() ); + if ( !p || Attribute( attrib->Name() ) ) { + DeleteAttribute( attrib ); + _document->SetError( XML_ERROR_PARSING_ATTRIBUTE, start, p ); + return 0; + } + // There is a minor bug here: if the attribute in the source xml + // document is duplicated, it will not be detected and the + // attribute will be doubly added. However, tracking the 'prevAttribute' + // avoids re-scanning the attribute list. Preferring performance for + // now, may reconsider in the future. + if ( prevAttribute ) { + prevAttribute->_next = attrib; + } + else { + _rootAttribute = attrib; + } + prevAttribute = attrib; + } + // end of the tag + else if ( *p == '>' ) { + ++p; + break; + } + // end of the tag + else if ( *p == '/' && *(p+1) == '>' ) { + _closingType = CLOSED; + return p+2; // done; sealed element. + } + else { + _document->SetError( XML_ERROR_PARSING_ELEMENT, start, p ); + return 0; + } + } + return p; +} + +void XMLElement::DeleteAttribute( XMLAttribute* attribute ) +{ + if ( attribute == 0 ) { + return; + } + MemPool* pool = attribute->_memPool; + attribute->~XMLAttribute(); + pool->Free( attribute ); +} + +// +// +// foobar +// +char* XMLElement::ParseDeep( char* p, StrPair* strPair ) +{ + // Read the element name. + p = XMLUtil::SkipWhiteSpace( p ); + + // The closing element is the form. It is + // parsed just like a regular element then deleted from + // the DOM. + if ( *p == '/' ) { + _closingType = CLOSING; + ++p; + } + + p = _value.ParseName( p ); + if ( _value.Empty() ) { + return 0; + } + + p = ParseAttributes( p ); + if ( !p || !*p || _closingType ) { + return p; + } + + p = XMLNode::ParseDeep( p, strPair ); + return p; +} + + + +XMLNode* XMLElement::ShallowClone( XMLDocument* doc ) const +{ + if ( !doc ) { + doc = _document; + } + XMLElement* element = doc->NewElement( Value() ); // fixme: this will always allocate memory. Intern? + for( const XMLAttribute* a=FirstAttribute(); a; a=a->Next() ) { + element->SetAttribute( a->Name(), a->Value() ); // fixme: this will always allocate memory. Intern? + } + return element; +} + + +bool XMLElement::ShallowEqual( const XMLNode* compare ) const +{ + TIXMLASSERT( compare ); + const XMLElement* other = compare->ToElement(); + if ( other && XMLUtil::StringEqual( other->Name(), Name() )) { + + const XMLAttribute* a=FirstAttribute(); + const XMLAttribute* b=other->FirstAttribute(); + + while ( a && b ) { + if ( !XMLUtil::StringEqual( a->Value(), b->Value() ) ) { + return false; + } + a = a->Next(); + b = b->Next(); + } + if ( a || b ) { + // different count + return false; + } + return true; + } + return false; +} + + +bool XMLElement::Accept( XMLVisitor* visitor ) const +{ + TIXMLASSERT( visitor ); + if ( visitor->VisitEnter( *this, _rootAttribute ) ) { + for ( const XMLNode* node=FirstChild(); node; node=node->NextSibling() ) { + if ( !node->Accept( visitor ) ) { + break; + } + } + } + return visitor->VisitExit( *this ); +} + + +// --------- XMLDocument ----------- // + +// Warning: List must match 'enum XMLError' +const char* XMLDocument::_errorNames[XML_ERROR_COUNT] = { + "XML_SUCCESS", + "XML_NO_ATTRIBUTE", + "XML_WRONG_ATTRIBUTE_TYPE", + "XML_ERROR_FILE_NOT_FOUND", + "XML_ERROR_FILE_COULD_NOT_BE_OPENED", + "XML_ERROR_FILE_READ_ERROR", + "XML_ERROR_ELEMENT_MISMATCH", + "XML_ERROR_PARSING_ELEMENT", + "XML_ERROR_PARSING_ATTRIBUTE", + "XML_ERROR_IDENTIFYING_TAG", + "XML_ERROR_PARSING_TEXT", + "XML_ERROR_PARSING_CDATA", + "XML_ERROR_PARSING_COMMENT", + "XML_ERROR_PARSING_DECLARATION", + "XML_ERROR_PARSING_UNKNOWN", + "XML_ERROR_EMPTY_DOCUMENT", + "XML_ERROR_MISMATCHED_ELEMENT", + "XML_ERROR_PARSING", + "XML_CAN_NOT_CONVERT_TEXT", + "XML_NO_TEXT_NODE" +}; + + +XMLDocument::XMLDocument( bool processEntities, Whitespace whitespace ) : + XMLNode( 0 ), + _writeBOM( false ), + _processEntities( processEntities ), + _errorID(XML_SUCCESS), + _whitespace( whitespace ), + _errorStr1( 0 ), + _errorStr2( 0 ), + _charBuffer( 0 ) +{ + // avoid VC++ C4355 warning about 'this' in initializer list (C4355 is off by default in VS2012+) + _document = this; +} + + +XMLDocument::~XMLDocument() +{ + Clear(); +} + + +void XMLDocument::Clear() +{ + DeleteChildren(); + +#ifdef DEBUG + const bool hadError = Error(); +#endif + _errorID = XML_SUCCESS; + _errorStr1 = 0; + _errorStr2 = 0; + + delete [] _charBuffer; + _charBuffer = 0; + +#if 0 + _textPool.Trace( "text" ); + _elementPool.Trace( "element" ); + _commentPool.Trace( "comment" ); + _attributePool.Trace( "attribute" ); +#endif + +#ifdef DEBUG + if ( !hadError ) { + TIXMLASSERT( _elementPool.CurrentAllocs() == _elementPool.Untracked() ); + TIXMLASSERT( _attributePool.CurrentAllocs() == _attributePool.Untracked() ); + TIXMLASSERT( _textPool.CurrentAllocs() == _textPool.Untracked() ); + TIXMLASSERT( _commentPool.CurrentAllocs() == _commentPool.Untracked() ); + } +#endif +} + + +XMLElement* XMLDocument::NewElement( const char* name ) +{ + TIXMLASSERT( sizeof( XMLElement ) == _elementPool.ItemSize() ); + XMLElement* ele = new (_elementPool.Alloc()) XMLElement( this ); + ele->_memPool = &_elementPool; + ele->SetName( name ); + return ele; +} + + +XMLComment* XMLDocument::NewComment( const char* str ) +{ + TIXMLASSERT( sizeof( XMLComment ) == _commentPool.ItemSize() ); + XMLComment* comment = new (_commentPool.Alloc()) XMLComment( this ); + comment->_memPool = &_commentPool; + comment->SetValue( str ); + return comment; +} + + +XMLText* XMLDocument::NewText( const char* str ) +{ + TIXMLASSERT( sizeof( XMLText ) == _textPool.ItemSize() ); + XMLText* text = new (_textPool.Alloc()) XMLText( this ); + text->_memPool = &_textPool; + text->SetValue( str ); + return text; +} + + +XMLDeclaration* XMLDocument::NewDeclaration( const char* str ) +{ + TIXMLASSERT( sizeof( XMLDeclaration ) == _commentPool.ItemSize() ); + XMLDeclaration* dec = new (_commentPool.Alloc()) XMLDeclaration( this ); + dec->_memPool = &_commentPool; + dec->SetValue( str ? str : "xml version=\"1.0\" encoding=\"UTF-8\"" ); + return dec; +} + + +XMLUnknown* XMLDocument::NewUnknown( const char* str ) +{ + TIXMLASSERT( sizeof( XMLUnknown ) == _commentPool.ItemSize() ); + XMLUnknown* unk = new (_commentPool.Alloc()) XMLUnknown( this ); + unk->_memPool = &_commentPool; + unk->SetValue( str ); + return unk; +} + +static FILE* callfopen( const char* filepath, const char* mode ) +{ + TIXMLASSERT( filepath ); + TIXMLASSERT( mode ); +#if defined(_MSC_VER) && (_MSC_VER >= 1400 ) && (!defined WINCE) + FILE* fp = 0; + errno_t err = fopen_s( &fp, filepath, mode ); + if ( err ) { + return 0; + } +#else + FILE* fp = fopen( filepath, mode ); +#endif + return fp; +} + +void XMLDocument::DeleteNode( XMLNode* node ) { + TIXMLASSERT( node ); + TIXMLASSERT(node->_document == this ); + if (node->_parent) { + node->_parent->DeleteChild( node ); + } + else { + // Isn't in the tree. + // Use the parent delete. + // Also, we need to mark it tracked: we 'know' + // it was never used. + node->_memPool->SetTracked(); + // Call the static XMLNode version: + XMLNode::DeleteNode(node); + } +} + + +XMLError XMLDocument::LoadFile( const char* filename ) +{ + Clear(); + FILE* fp = callfopen( filename, "rb" ); + if ( !fp ) { + SetError( XML_ERROR_FILE_NOT_FOUND, filename, 0 ); + return _errorID; + } + LoadFile( fp ); + fclose( fp ); + return _errorID; +} + +// This is likely overengineered template art to have a check that unsigned long value incremented +// by one still fits into size_t. If size_t type is larger than unsigned long type +// (x86_64-w64-mingw32 target) then the check is redundant and gcc and clang emit +// -Wtype-limits warning. This piece makes the compiler select code with a check when a check +// is useful and code with no check when a check is redundant depending on how size_t and unsigned long +// types sizes relate to each other. +template += sizeof(size_t))> +struct LongFitsIntoSizeTMinusOne { + static bool Fits( unsigned long value ) + { + return value < (size_t)-1; + } +}; + +template <> +bool LongFitsIntoSizeTMinusOne::Fits( unsigned long /*value*/ ) +{ + return true; +} + +XMLError XMLDocument::LoadFile( FILE* fp ) +{ + Clear(); + + fseek( fp, 0, SEEK_SET ); + if ( fgetc( fp ) == EOF && ferror( fp ) != 0 ) { + SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 ); + return _errorID; + } + + fseek( fp, 0, SEEK_END ); + const long filelength = ftell( fp ); + fseek( fp, 0, SEEK_SET ); + if ( filelength == -1L ) { + SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 ); + return _errorID; + } + TIXMLASSERT( filelength >= 0 ); + + if ( !LongFitsIntoSizeTMinusOne<>::Fits( filelength ) ) { + // Cannot handle files which won't fit in buffer together with null terminator + SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 ); + return _errorID; + } + + if ( filelength == 0 ) { + SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 ); + return _errorID; + } + + const size_t size = filelength; + TIXMLASSERT( _charBuffer == 0 ); + _charBuffer = new char[size+1]; + size_t read = fread( _charBuffer, 1, size, fp ); + if ( read != size ) { + SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 ); + return _errorID; + } + + _charBuffer[size] = 0; + + Parse(); + return _errorID; +} + + +XMLError XMLDocument::SaveFile( const char* filename, bool compact ) +{ + FILE* fp = callfopen( filename, "w" ); + if ( !fp ) { + SetError( XML_ERROR_FILE_COULD_NOT_BE_OPENED, filename, 0 ); + return _errorID; + } + SaveFile(fp, compact); + fclose( fp ); + return _errorID; +} + + +XMLError XMLDocument::SaveFile( FILE* fp, bool compact ) +{ + // Clear any error from the last save, otherwise it will get reported + // for *this* call. + SetError(XML_SUCCESS, 0, 0); + XMLPrinter stream( fp, compact ); + Print( &stream ); + return _errorID; +} + + +XMLError XMLDocument::Parse( const char* p, size_t len ) +{ + Clear(); + + if ( len == 0 || !p || !*p ) { + SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 ); + return _errorID; + } + if ( len == (size_t)(-1) ) { + len = strlen( p ); + } + TIXMLASSERT( _charBuffer == 0 ); + _charBuffer = new char[ len+1 ]; + memcpy( _charBuffer, p, len ); + _charBuffer[len] = 0; + + Parse(); + if ( Error() ) { + // clean up now essentially dangling memory. + // and the parse fail can put objects in the + // pools that are dead and inaccessible. + DeleteChildren(); + _elementPool.Clear(); + _attributePool.Clear(); + _textPool.Clear(); + _commentPool.Clear(); + } + return _errorID; +} + + +void XMLDocument::Print( XMLPrinter* streamer ) const +{ + if ( streamer ) { + Accept( streamer ); + } + else { + XMLPrinter stdoutStreamer( stdout ); + Accept( &stdoutStreamer ); + } +} + + +void XMLDocument::SetError( XMLError error, const char* str1, const char* str2 ) +{ + TIXMLASSERT( error >= 0 && error < XML_ERROR_COUNT ); + _errorID = error; + _errorStr1 = str1; + _errorStr2 = str2; +} + +const char* XMLDocument::ErrorName() const +{ + TIXMLASSERT( _errorID >= 0 && _errorID < XML_ERROR_COUNT ); + const char* errorName = _errorNames[_errorID]; + TIXMLASSERT( errorName && errorName[0] ); + return errorName; +} + +void XMLDocument::PrintError() const +{ + if ( Error() ) { + static const int LEN = 20; + char buf1[LEN] = { 0 }; + char buf2[LEN] = { 0 }; + + if ( _errorStr1 ) { + TIXML_SNPRINTF( buf1, LEN, "%s", _errorStr1 ); + } + if ( _errorStr2 ) { + TIXML_SNPRINTF( buf2, LEN, "%s", _errorStr2 ); + } + + // Should check INT_MIN <= _errorID && _errorId <= INT_MAX, but that + // causes a clang "always true" -Wtautological-constant-out-of-range-compare warning + TIXMLASSERT( 0 <= _errorID && XML_ERROR_COUNT - 1 <= INT_MAX ); + printf( "XMLDocument error id=%d '%s' str1=%s str2=%s\n", + static_cast( _errorID ), ErrorName(), buf1, buf2 ); + } +} + +void XMLDocument::Parse() +{ + TIXMLASSERT( NoChildren() ); // Clear() must have been called previously + TIXMLASSERT( _charBuffer ); + char* p = _charBuffer; + p = XMLUtil::SkipWhiteSpace( p ); + p = const_cast( XMLUtil::ReadBOM( p, &_writeBOM ) ); + if ( !*p ) { + SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 ); + return; + } + ParseDeep(p, 0 ); +} + +XMLPrinter::XMLPrinter( FILE* file, bool compact, int depth ) : + _elementJustOpened( false ), + _firstElement( true ), + _fp( file ), + _depth( depth ), + _textDepth( -1 ), + _processEntities( true ), + _compactMode( compact ) +{ + for( int i=0; i'] = true; // not required, but consistency is nice + _buffer.Push( 0 ); +} + + +void XMLPrinter::Print( const char* format, ... ) +{ + va_list va; + va_start( va, format ); + + if ( _fp ) { + vfprintf( _fp, format, va ); + } + else { + const int len = TIXML_VSCPRINTF( format, va ); + // Close out and re-start the va-args + va_end( va ); + TIXMLASSERT( len >= 0 ); + va_start( va, format ); + TIXMLASSERT( _buffer.Size() > 0 && _buffer[_buffer.Size() - 1] == 0 ); + char* p = _buffer.PushArr( len ) - 1; // back up over the null terminator. + TIXML_VSNPRINTF( p, len+1, format, va ); + } + va_end( va ); +} + + +void XMLPrinter::PrintSpace( int depth ) +{ + for( int i=0; i 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[(unsigned char)(*q)] ) { + while ( p < q ) { + const size_t delta = q - p; + // %.*s accepts type int as "precision" + const int toPrint = ( INT_MAX < delta ) ? INT_MAX : (int)delta; + Print( "%.*s", toPrint, p ); + p += toPrint; + } + bool entityPatternPrinted = false; + for( int i=0; i" ); + } + else { + if ( _textDepth < 0 && !compactMode) { + Print( "\n" ); + PrintSpace( _depth ); + } + Print( "", name ); + } + + if ( _textDepth == _depth ) { + _textDepth = -1; + } + if ( _depth == 0 && !compactMode) { + Print( "\n" ); + } + _elementJustOpened = false; +} + + +void XMLPrinter::SealElementIfJustOpened() +{ + if ( !_elementJustOpened ) { + return; + } + _elementJustOpened = false; + Print( ">" ); +} + + +void XMLPrinter::PushText( const char* text, bool cdata ) +{ + _textDepth = _depth-1; + + SealElementIfJustOpened(); + if ( cdata ) { + Print( "", text ); + } + else { + PrintString( text, true ); + } +} + +void XMLPrinter::PushText( int value ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( value, buf, BUF_SIZE ); + PushText( buf, false ); +} + + +void XMLPrinter::PushText( unsigned value ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( value, buf, BUF_SIZE ); + PushText( buf, false ); +} + + +void XMLPrinter::PushText( bool value ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( value, buf, BUF_SIZE ); + PushText( buf, false ); +} + + +void XMLPrinter::PushText( float value ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( value, buf, BUF_SIZE ); + PushText( buf, false ); +} + + +void XMLPrinter::PushText( double value ) +{ + char buf[BUF_SIZE]; + XMLUtil::ToStr( value, buf, BUF_SIZE ); + PushText( buf, false ); +} + + +void XMLPrinter::PushComment( const char* comment ) +{ + SealElementIfJustOpened(); + if ( _textDepth < 0 && !_firstElement && !_compactMode) { + Print( "\n" ); + PrintSpace( _depth ); + } + _firstElement = false; + Print( "", comment ); +} + + +void XMLPrinter::PushDeclaration( const char* value ) +{ + SealElementIfJustOpened(); + if ( _textDepth < 0 && !_firstElement && !_compactMode) { + Print( "\n" ); + PrintSpace( _depth ); + } + _firstElement = false; + Print( "", value ); +} + + +void XMLPrinter::PushUnknown( const char* value ) +{ + SealElementIfJustOpened(); + if ( _textDepth < 0 && !_firstElement && !_compactMode) { + Print( "\n" ); + PrintSpace( _depth ); + } + _firstElement = false; + Print( "", value ); +} + + +bool XMLPrinter::VisitEnter( const XMLDocument& doc ) +{ + _processEntities = doc.ProcessEntities(); + if ( doc.HasBOM() ) { + PushHeader( true, false ); + } + return true; +} + + +bool XMLPrinter::VisitEnter( const XMLElement& element, const XMLAttribute* attribute ) +{ + const XMLElement* parentElem = 0; + if ( element.Parent() ) { + parentElem = element.Parent()->ToElement(); + } + const bool compactMode = parentElem ? CompactMode( *parentElem ) : _compactMode; + OpenElement( element.Name(), compactMode ); + while ( attribute ) { + PushAttribute( attribute->Name(), attribute->Value() ); + attribute = attribute->Next(); + } + return true; +} + + +bool XMLPrinter::VisitExit( const XMLElement& element ) +{ + CloseElement( CompactMode(element) ); + return true; +} + + +bool XMLPrinter::Visit( const XMLText& text ) +{ + PushText( text.Value(), text.CData() ); + return true; +} + + +bool XMLPrinter::Visit( const XMLComment& comment ) +{ + PushComment( comment.Value() ); + return true; +} + +bool XMLPrinter::Visit( const XMLDeclaration& declaration ) +{ + PushDeclaration( declaration.Value() ); + return true; +} + + +bool XMLPrinter::Visit( const XMLUnknown& unknown ) +{ + PushUnknown( unknown.Value() ); + return true; +} + +} // namespace tinyxml2 + diff --git a/Src/Pkgs/tinyxml2.h b/Src/Pkgs/tinyxml2.h new file mode 100644 index 0000000..0fe2cdd --- /dev/null +++ b/Src/Pkgs/tinyxml2.h @@ -0,0 +1,2102 @@ +/* +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. +*/ + +#ifndef TINYXML2_INCLUDED +#define TINYXML2_INCLUDED + +#if defined(ANDROID_NDK) || defined(__BORLANDC__) || defined(__QNXNTO__) +# include +# include +# include +# include +# include +# if defined(__PS3__) +# include +# endif +#else +# include +# include +# include +# include +# include +#endif + +/* + TODO: intern strings instead of allocation. +*/ +/* + gcc: + g++ -Wall -DDEBUG tinyxml2.cpp xmltest.cpp -o gccxmltest.exe + + Formatting, Artistic Style: + AStyle.exe --style=1tbs --indent-switches --break-closing-brackets --indent-preprocessor tinyxml2.cpp tinyxml2.h +*/ + +#if defined( _DEBUG ) || defined( DEBUG ) || defined (__DEBUG__) +# ifndef DEBUG +# define DEBUG +# endif +#endif + +#ifdef _MSC_VER +# pragma warning(push) +# pragma warning(disable: 4251) +#endif + +#ifdef _WIN32 +# ifdef TINYXML2_EXPORT +# define TINYXML2_LIB __declspec(dllexport) +# elif defined(TINYXML2_IMPORT) +# define TINYXML2_LIB __declspec(dllimport) +# else +# define TINYXML2_LIB +# endif +#else +# define TINYXML2_LIB +#endif + + +#if defined(DEBUG) +# if defined(_MSC_VER) +# // "(void)0," is for suppressing C4127 warning in "assert(false)", "assert(true)" and the like +# define TIXMLASSERT( x ) if ( !((void)0,(x))) { __debugbreak(); } +# elif defined (ANDROID_NDK) +# include +# define TIXMLASSERT( x ) if ( !(x)) { __android_log_assert( "assert", "grinliz", "ASSERT in '%s' at %d.", __FILE__, __LINE__ ); } +# else +# include +# define TIXMLASSERT assert +# endif +#else +# define TIXMLASSERT( x ) {} +#endif + + +/* Versioning, past 1.0.14: + http://semver.org/ +*/ +static const int TIXML2_MAJOR_VERSION = 3; +static const int TIXML2_MINOR_VERSION = 0; +static const int TIXML2_PATCH_VERSION = 0; + +namespace tinyxml2 +{ +class XMLDocument; +class XMLElement; +class XMLAttribute; +class XMLComment; +class XMLText; +class XMLDeclaration; +class XMLUnknown; +class XMLPrinter; + +/* + A class that wraps strings. Normally stores the start and end + pointers into the XML file itself, and will apply normalization + and entity translation if actually read. Can also store (and memory + manage) a traditional char[] +*/ +class StrPair +{ +public: + enum { + NEEDS_ENTITY_PROCESSING = 0x01, + NEEDS_NEWLINE_NORMALIZATION = 0x02, + NEEDS_WHITESPACE_COLLAPSING = 0x04, + + TEXT_ELEMENT = NEEDS_ENTITY_PROCESSING | NEEDS_NEWLINE_NORMALIZATION, + TEXT_ELEMENT_LEAVE_ENTITIES = NEEDS_NEWLINE_NORMALIZATION, + ATTRIBUTE_NAME = 0, + ATTRIBUTE_VALUE = NEEDS_ENTITY_PROCESSING | NEEDS_NEWLINE_NORMALIZATION, + ATTRIBUTE_VALUE_LEAVE_ENTITIES = NEEDS_NEWLINE_NORMALIZATION, + COMMENT = NEEDS_NEWLINE_NORMALIZATION + }; + + StrPair() : _flags( 0 ), _start( 0 ), _end( 0 ) {} + ~StrPair(); + + void Set( char* start, char* end, int flags ) { + Reset(); + _start = start; + _end = end; + _flags = flags | NEEDS_FLUSH; + } + + const char* GetStr(); + + bool Empty() const { + return _start == _end; + } + + void SetInternedStr( const char* str ) { + Reset(); + _start = const_cast(str); + } + + void SetStr( const char* str, int flags=0 ); + + char* ParseText( char* in, const char* endTag, int strFlags ); + char* ParseName( char* in ); + + void TransferTo( StrPair* other ); + +private: + void Reset(); + void CollapseWhitespace(); + + enum { + NEEDS_FLUSH = 0x100, + NEEDS_DELETE = 0x200 + }; + + int _flags; + char* _start; + char* _end; + + StrPair( const StrPair& other ); // not supported + void operator=( StrPair& other ); // not supported, use TransferTo() +}; + + +/* + A dynamic array of Plain Old Data. Doesn't support constructors, etc. + Has a small initial memory pool, so that low or no usage will not + cause a call to new/delete +*/ +template +class DynArray +{ +public: + DynArray() { + _mem = _pool; + _allocated = INITIAL_SIZE; + _size = 0; + } + + ~DynArray() { + if ( _mem != _pool ) { + delete [] _mem; + } + } + + void Clear() { + _size = 0; + } + + void Push( T t ) { + TIXMLASSERT( _size < INT_MAX ); + EnsureCapacity( _size+1 ); + _mem[_size++] = t; + } + + T* PushArr( int count ) { + TIXMLASSERT( count >= 0 ); + TIXMLASSERT( _size <= INT_MAX - count ); + EnsureCapacity( _size+count ); + T* ret = &_mem[_size]; + _size += count; + return ret; + } + + T Pop() { + TIXMLASSERT( _size > 0 ); + return _mem[--_size]; + } + + void PopArr( int count ) { + TIXMLASSERT( _size >= count ); + _size -= count; + } + + bool Empty() const { + return _size == 0; + } + + T& operator[](int i) { + TIXMLASSERT( i>= 0 && i < _size ); + return _mem[i]; + } + + const T& operator[](int i) const { + TIXMLASSERT( i>= 0 && i < _size ); + return _mem[i]; + } + + const T& PeekTop() const { + TIXMLASSERT( _size > 0 ); + return _mem[ _size - 1]; + } + + int Size() const { + TIXMLASSERT( _size >= 0 ); + return _size; + } + + int Capacity() const { + TIXMLASSERT( _allocated >= INITIAL_SIZE ); + return _allocated; + } + + const T* Mem() const { + TIXMLASSERT( _mem ); + return _mem; + } + + T* Mem() { + TIXMLASSERT( _mem ); + return _mem; + } + +private: + DynArray( const DynArray& ); // not supported + void operator=( const DynArray& ); // not supported + + void EnsureCapacity( int cap ) { + TIXMLASSERT( cap > 0 ); + if ( cap > _allocated ) { + TIXMLASSERT( cap <= INT_MAX / 2 ); + int newAllocated = cap * 2; + T* newMem = new T[newAllocated]; + memcpy( newMem, _mem, sizeof(T)*_size ); // warning: not using constructors, only works for PODs + if ( _mem != _pool ) { + delete [] _mem; + } + _mem = newMem; + _allocated = newAllocated; + } + } + + T* _mem; + T _pool[INITIAL_SIZE]; + int _allocated; // objects allocated + int _size; // number objects in use +}; + + +/* + Parent virtual class of a pool for fast allocation + and deallocation of objects. +*/ +class MemPool +{ +public: + MemPool() {} + virtual ~MemPool() {} + + virtual int ItemSize() const = 0; + virtual void* Alloc() = 0; + virtual void Free( void* ) = 0; + virtual void SetTracked() = 0; + virtual void Clear() = 0; +}; + + +/* + Template child class to create pools of the correct type. +*/ +template< int SIZE > +class MemPoolT : public MemPool +{ +public: + MemPoolT() : _root(0), _currentAllocs(0), _nAllocs(0), _maxAllocs(0), _nUntracked(0) {} + ~MemPoolT() { + Clear(); + } + + void Clear() { + // Delete the blocks. + while( !_blockPtrs.Empty()) { + Block* b = _blockPtrs.Pop(); + delete b; + } + _root = 0; + _currentAllocs = 0; + _nAllocs = 0; + _maxAllocs = 0; + _nUntracked = 0; + } + + virtual int ItemSize() const { + return SIZE; + } + int CurrentAllocs() const { + return _currentAllocs; + } + + virtual void* Alloc() { + if ( !_root ) { + // Need a new block. + Block* block = new Block(); + _blockPtrs.Push( block ); + + for( int i=0; ichunk[i].next = &block->chunk[i+1]; + } + block->chunk[COUNT-1].next = 0; + _root = block->chunk; + } + void* result = _root; + _root = _root->next; + + ++_currentAllocs; + if ( _currentAllocs > _maxAllocs ) { + _maxAllocs = _currentAllocs; + } + _nAllocs++; + _nUntracked++; + return result; + } + + virtual void Free( void* mem ) { + if ( !mem ) { + return; + } + --_currentAllocs; + Chunk* chunk = static_cast( mem ); +#ifdef DEBUG + memset( chunk, 0xfe, sizeof(Chunk) ); +#endif + chunk->next = _root; + _root = chunk; + } + void Trace( const char* name ) { + printf( "Mempool %s watermark=%d [%dk] current=%d size=%d nAlloc=%d blocks=%d\n", + name, _maxAllocs, _maxAllocs*SIZE/1024, _currentAllocs, SIZE, _nAllocs, _blockPtrs.Size() ); + } + + void SetTracked() { + _nUntracked--; + } + + int Untracked() const { + return _nUntracked; + } + + // This number is perf sensitive. 4k seems like a good tradeoff on my machine. + // The test file is large, 170k. + // Release: VS2010 gcc(no opt) + // 1k: 4000 + // 2k: 4000 + // 4k: 3900 21000 + // 16k: 5200 + // 32k: 4300 + // 64k: 4000 21000 + enum { COUNT = (4*1024)/SIZE }; // Some compilers do not accept to use COUNT in private part if COUNT is private + +private: + MemPoolT( const MemPoolT& ); // not supported + void operator=( const MemPoolT& ); // not supported + + union Chunk { + Chunk* next; + char mem[SIZE]; + }; + struct Block { + Chunk chunk[COUNT]; + }; + DynArray< Block*, 10 > _blockPtrs; + Chunk* _root; + + int _currentAllocs; + int _nAllocs; + int _maxAllocs; + int _nUntracked; +}; + + + +/** + Implements the interface to the "Visitor pattern" (see the Accept() method.) + If you call the Accept() method, it requires being passed a XMLVisitor + class to handle callbacks. For nodes that contain other nodes (Document, Element) + you will get called with a VisitEnter/VisitExit pair. Nodes that are always leafs + are simply called with Visit(). + + If you return 'true' from a Visit method, recursive parsing will continue. If you return + false, no children of this node or its siblings will be visited. + + All flavors of Visit methods have a default implementation that returns 'true' (continue + visiting). You need to only override methods that are interesting to you. + + Generally Accept() is called on the XMLDocument, although all nodes support visiting. + + You should never change the document from a callback. + + @sa XMLNode::Accept() +*/ +class TINYXML2_LIB XMLVisitor +{ +public: + virtual ~XMLVisitor() {} + + /// Visit a document. + virtual bool VisitEnter( const XMLDocument& /*doc*/ ) { + return true; + } + /// Visit a document. + virtual bool VisitExit( const XMLDocument& /*doc*/ ) { + return true; + } + + /// Visit an element. + virtual bool VisitEnter( const XMLElement& /*element*/, const XMLAttribute* /*firstAttribute*/ ) { + return true; + } + /// Visit an element. + virtual bool VisitExit( const XMLElement& /*element*/ ) { + return true; + } + + /// Visit a declaration. + virtual bool Visit( const XMLDeclaration& /*declaration*/ ) { + return true; + } + /// Visit a text node. + virtual bool Visit( const XMLText& /*text*/ ) { + return true; + } + /// Visit a comment node. + virtual bool Visit( const XMLComment& /*comment*/ ) { + return true; + } + /// Visit an unknown node. + virtual bool Visit( const XMLUnknown& /*unknown*/ ) { + return true; + } +}; + +// WARNING: must match XMLDocument::_errorNames[] +enum XMLError { + XML_SUCCESS = 0, + XML_NO_ATTRIBUTE, + XML_WRONG_ATTRIBUTE_TYPE, + XML_ERROR_FILE_NOT_FOUND, + XML_ERROR_FILE_COULD_NOT_BE_OPENED, + XML_ERROR_FILE_READ_ERROR, + XML_ERROR_ELEMENT_MISMATCH, + XML_ERROR_PARSING_ELEMENT, + XML_ERROR_PARSING_ATTRIBUTE, + XML_ERROR_IDENTIFYING_TAG, + XML_ERROR_PARSING_TEXT, + XML_ERROR_PARSING_CDATA, + XML_ERROR_PARSING_COMMENT, + XML_ERROR_PARSING_DECLARATION, + XML_ERROR_PARSING_UNKNOWN, + XML_ERROR_EMPTY_DOCUMENT, + XML_ERROR_MISMATCHED_ELEMENT, + XML_ERROR_PARSING, + XML_CAN_NOT_CONVERT_TEXT, + XML_NO_TEXT_NODE, + + XML_ERROR_COUNT +}; + + +/* + Utility functionality. +*/ +class XMLUtil +{ +public: + static const char* SkipWhiteSpace( const char* p ) { + TIXMLASSERT( p ); + while( IsWhiteSpace(*p) ) { + ++p; + } + TIXMLASSERT( p ); + return p; + } + static char* SkipWhiteSpace( char* p ) { + return const_cast( SkipWhiteSpace( const_cast(p) ) ); + } + + // Anything in the high order range of UTF-8 is assumed to not be whitespace. This isn't + // correct, but simple, and usually works. + static bool IsWhiteSpace( char p ) { + return !IsUTF8Continuation(p) && isspace( static_cast(p) ); + } + + inline static bool IsNameStartChar( unsigned char ch ) { + if ( ch >= 128 ) { + // This is a heuristic guess in attempt to not implement Unicode-aware isalpha() + return true; + } + if ( isalpha( ch ) ) { + return true; + } + return ch == ':' || ch == '_'; + } + + inline static bool IsNameChar( unsigned char ch ) { + return IsNameStartChar( ch ) + || isdigit( ch ) + || ch == '.' + || ch == '-'; + } + + inline static bool StringEqual( const char* p, const char* q, int nChar=INT_MAX ) { + if ( p == q ) { + return true; + } + return strncmp( p, q, nChar ) == 0; + } + + inline static bool IsUTF8Continuation( char p ) { + return ( p & 0x80 ) != 0; + } + + static const char* ReadBOM( const char* p, bool* hasBOM ); + // p is the starting location, + // the UTF-8 value of the entity will be placed in value, and length filled in. + static const char* GetCharacterRef( const char* p, char* value, int* length ); + static void ConvertUTF32ToUTF8( unsigned long input, char* output, int* length ); + + // converts primitive types to strings + static void ToStr( int v, char* buffer, int bufferSize ); + static void ToStr( unsigned v, char* buffer, int bufferSize ); + static void ToStr( bool v, char* buffer, int bufferSize ); + static void ToStr( float v, char* buffer, int bufferSize ); + static void ToStr( double v, char* buffer, int bufferSize ); + + // converts strings to primitive types + static bool ToInt( const char* str, int* value ); + static bool ToUnsigned( const char* str, unsigned* value ); + static bool ToBool( const char* str, bool* value ); + static bool ToFloat( const char* str, float* value ); + static bool ToDouble( const char* str, double* value ); +}; + + +/** XMLNode is a base class for every object that is in the + XML Document Object Model (DOM), except XMLAttributes. + Nodes have siblings, a parent, and children which can + be navigated. A node is always in a XMLDocument. + The type of a XMLNode can be queried, and it can + be cast to its more defined type. + + A XMLDocument allocates memory for all its Nodes. + When the XMLDocument gets deleted, all its Nodes + will also be deleted. + + @verbatim + A Document can contain: Element (container or leaf) + Comment (leaf) + Unknown (leaf) + Declaration( leaf ) + + An Element can contain: Element (container or leaf) + Text (leaf) + Attributes (not on tree) + Comment (leaf) + Unknown (leaf) + + @endverbatim +*/ +class TINYXML2_LIB XMLNode +{ + friend class XMLDocument; + friend class XMLElement; +public: + + /// Get the XMLDocument that owns this XMLNode. + const XMLDocument* GetDocument() const { + TIXMLASSERT( _document ); + return _document; + } + /// Get the XMLDocument that owns this XMLNode. + XMLDocument* GetDocument() { + TIXMLASSERT( _document ); + return _document; + } + + /// Safely cast to an Element, or null. + virtual XMLElement* ToElement() { + return 0; + } + /// Safely cast to Text, or null. + virtual XMLText* ToText() { + return 0; + } + /// Safely cast to a Comment, or null. + virtual XMLComment* ToComment() { + return 0; + } + /// Safely cast to a Document, or null. + virtual XMLDocument* ToDocument() { + return 0; + } + /// Safely cast to a Declaration, or null. + virtual XMLDeclaration* ToDeclaration() { + return 0; + } + /// Safely cast to an Unknown, or null. + virtual XMLUnknown* ToUnknown() { + return 0; + } + + virtual const XMLElement* ToElement() const { + return 0; + } + virtual const XMLText* ToText() const { + return 0; + } + virtual const XMLComment* ToComment() const { + return 0; + } + virtual const XMLDocument* ToDocument() const { + return 0; + } + virtual const XMLDeclaration* ToDeclaration() const { + return 0; + } + virtual const XMLUnknown* ToUnknown() const { + return 0; + } + + /** The meaning of 'value' changes for the specific type. + @verbatim + Document: empty (NULL is returned, not an empty string) + Element: name of the element + Comment: the comment text + Unknown: the tag contents + Text: the text string + @endverbatim + */ + const char* Value() const; + + /** Set the Value of an XML node. + @sa Value() + */ + void SetValue( const char* val, bool staticMem=false ); + + /// Get the parent of this node on the DOM. + const XMLNode* Parent() const { + return _parent; + } + + XMLNode* Parent() { + return _parent; + } + + /// Returns true if this node has no children. + bool NoChildren() const { + return !_firstChild; + } + + /// Get the first child node, or null if none exists. + const XMLNode* FirstChild() const { + return _firstChild; + } + + XMLNode* FirstChild() { + return _firstChild; + } + + /** Get the first child element, or optionally the first child + element with the specified name. + */ + const XMLElement* FirstChildElement( const char* name = 0 ) const; + + XMLElement* FirstChildElement( const char* name = 0 ) { + return const_cast(const_cast(this)->FirstChildElement( name )); + } + + /// Get the last child node, or null if none exists. + const XMLNode* LastChild() const { + return _lastChild; + } + + XMLNode* LastChild() { + return _lastChild; + } + + /** Get the last child element or optionally the last child + element with the specified name. + */ + const XMLElement* LastChildElement( const char* name = 0 ) const; + + XMLElement* LastChildElement( const char* name = 0 ) { + return const_cast(const_cast(this)->LastChildElement(name) ); + } + + /// Get the previous (left) sibling node of this node. + const XMLNode* PreviousSibling() const { + return _prev; + } + + XMLNode* PreviousSibling() { + return _prev; + } + + /// Get the previous (left) sibling element of this node, with an optionally supplied name. + const XMLElement* PreviousSiblingElement( const char* name = 0 ) const ; + + XMLElement* PreviousSiblingElement( const char* name = 0 ) { + return const_cast(const_cast(this)->PreviousSiblingElement( name ) ); + } + + /// Get the next (right) sibling node of this node. + const XMLNode* NextSibling() const { + return _next; + } + + XMLNode* NextSibling() { + return _next; + } + + /// Get the next (right) sibling element of this node, with an optionally supplied name. + const XMLElement* NextSiblingElement( const char* name = 0 ) const; + + XMLElement* NextSiblingElement( const char* name = 0 ) { + return const_cast(const_cast(this)->NextSiblingElement( name ) ); + } + + /** + Add a child node as the last (right) child. + If the child node is already part of the document, + it is moved from its old location to the new location. + Returns the addThis argument or 0 if the node does not + belong to the same document. + */ + XMLNode* InsertEndChild( XMLNode* addThis ); + + XMLNode* LinkEndChild( XMLNode* addThis ) { + return InsertEndChild( addThis ); + } + /** + Add a child node as the first (left) child. + If the child node is already part of the document, + it is moved from its old location to the new location. + Returns the addThis argument or 0 if the node does not + belong to the same document. + */ + XMLNode* InsertFirstChild( XMLNode* addThis ); + /** + Add a node after the specified child node. + If the child node is already part of the document, + it is moved from its old location to the new location. + Returns the addThis argument or 0 if the afterThis node + is not a child of this node, or if the node does not + belong to the same document. + */ + XMLNode* InsertAfterChild( XMLNode* afterThis, XMLNode* addThis ); + + /** + Delete all the children of this node. + */ + void DeleteChildren(); + + /** + Delete a child of this node. + */ + void DeleteChild( XMLNode* node ); + + /** + Make a copy of this node, but not its children. + You may pass in a Document pointer that will be + the owner of the new Node. If the 'document' is + null, then the node returned will be allocated + from the current Document. (this->GetDocument()) + + Note: if called on a XMLDocument, this will return null. + */ + virtual XMLNode* ShallowClone( XMLDocument* document ) const = 0; + + /** + Test if 2 nodes are the same, but don't test children. + The 2 nodes do not need to be in the same Document. + + Note: if called on a XMLDocument, this will return false. + */ + virtual bool ShallowEqual( const XMLNode* compare ) const = 0; + + /** Accept a hierarchical visit of the nodes in the TinyXML-2 DOM. Every node in the + XML tree will be conditionally visited and the host will be called back + via the XMLVisitor interface. + + This is essentially a SAX interface for TinyXML-2. (Note however it doesn't re-parse + the XML for the callbacks, so the performance of TinyXML-2 is unchanged by using this + interface versus any other.) + + The interface has been based on ideas from: + + - http://www.saxproject.org/ + - http://c2.com/cgi/wiki?HierarchicalVisitorPattern + + Which are both good references for "visiting". + + An example of using Accept(): + @verbatim + XMLPrinter printer; + tinyxmlDoc.Accept( &printer ); + const char* xmlcstr = printer.CStr(); + @endverbatim + */ + virtual bool Accept( XMLVisitor* visitor ) const = 0; + +protected: + XMLNode( XMLDocument* ); + virtual ~XMLNode(); + + virtual char* ParseDeep( char*, StrPair* ); + + XMLDocument* _document; + XMLNode* _parent; + mutable StrPair _value; + + XMLNode* _firstChild; + XMLNode* _lastChild; + + XMLNode* _prev; + XMLNode* _next; + +private: + MemPool* _memPool; + void Unlink( XMLNode* child ); + static void DeleteNode( XMLNode* node ); + void InsertChildPreamble( XMLNode* insertThis ) const; + + XMLNode( const XMLNode& ); // not supported + XMLNode& operator=( const XMLNode& ); // not supported +}; + + +/** XML text. + + Note that a text node can have child element nodes, for example: + @verbatim + This is bold + @endverbatim + + A text node can have 2 ways to output the next. "normal" output + and CDATA. It will default to the mode it was parsed from the XML file and + you generally want to leave it alone, but you can change the output mode with + SetCData() and query it with CData(). +*/ +class TINYXML2_LIB XMLText : public XMLNode +{ + friend class XMLDocument; +public: + virtual bool Accept( XMLVisitor* visitor ) const; + + virtual XMLText* ToText() { + return this; + } + virtual const XMLText* ToText() const { + return this; + } + + /// Declare whether this should be CDATA or standard text. + void SetCData( bool isCData ) { + _isCData = isCData; + } + /// Returns true if this is a CDATA text element. + bool CData() const { + return _isCData; + } + + virtual XMLNode* ShallowClone( XMLDocument* document ) const; + virtual bool ShallowEqual( const XMLNode* compare ) const; + +protected: + XMLText( XMLDocument* doc ) : XMLNode( doc ), _isCData( false ) {} + virtual ~XMLText() {} + + char* ParseDeep( char*, StrPair* endTag ); + +private: + bool _isCData; + + XMLText( const XMLText& ); // not supported + XMLText& operator=( const XMLText& ); // not supported +}; + + +/** An XML Comment. */ +class TINYXML2_LIB XMLComment : public XMLNode +{ + friend class XMLDocument; +public: + virtual XMLComment* ToComment() { + return this; + } + virtual const XMLComment* ToComment() const { + return this; + } + + virtual bool Accept( XMLVisitor* visitor ) const; + + virtual XMLNode* ShallowClone( XMLDocument* document ) const; + virtual bool ShallowEqual( const XMLNode* compare ) const; + +protected: + XMLComment( XMLDocument* doc ); + virtual ~XMLComment(); + + char* ParseDeep( char*, StrPair* endTag ); + +private: + XMLComment( const XMLComment& ); // not supported + XMLComment& operator=( const XMLComment& ); // not supported +}; + + +/** In correct XML the declaration is the first entry in the file. + @verbatim + + @endverbatim + + TinyXML-2 will happily read or write files without a declaration, + however. + + The text of the declaration isn't interpreted. It is parsed + and written as a string. +*/ +class TINYXML2_LIB XMLDeclaration : public XMLNode +{ + friend class XMLDocument; +public: + virtual XMLDeclaration* ToDeclaration() { + return this; + } + virtual const XMLDeclaration* ToDeclaration() const { + return this; + } + + virtual bool Accept( XMLVisitor* visitor ) const; + + virtual XMLNode* ShallowClone( XMLDocument* document ) const; + virtual bool ShallowEqual( const XMLNode* compare ) const; + +protected: + XMLDeclaration( XMLDocument* doc ); + virtual ~XMLDeclaration(); + + char* ParseDeep( char*, StrPair* endTag ); + +private: + XMLDeclaration( const XMLDeclaration& ); // not supported + XMLDeclaration& operator=( const XMLDeclaration& ); // not supported +}; + + +/** Any tag that TinyXML-2 doesn't recognize is saved as an + unknown. It is a tag of text, but should not be modified. + It will be written back to the XML, unchanged, when the file + is saved. + + DTD tags get thrown into XMLUnknowns. +*/ +class TINYXML2_LIB XMLUnknown : public XMLNode +{ + friend class XMLDocument; +public: + virtual XMLUnknown* ToUnknown() { + return this; + } + virtual const XMLUnknown* ToUnknown() const { + return this; + } + + virtual bool Accept( XMLVisitor* visitor ) const; + + virtual XMLNode* ShallowClone( XMLDocument* document ) const; + virtual bool ShallowEqual( const XMLNode* compare ) const; + +protected: + XMLUnknown( XMLDocument* doc ); + virtual ~XMLUnknown(); + + char* ParseDeep( char*, StrPair* endTag ); + +private: + XMLUnknown( const XMLUnknown& ); // not supported + XMLUnknown& operator=( const XMLUnknown& ); // not supported +}; + + + +/** An attribute is a name-value pair. Elements have an arbitrary + number of attributes, each with a unique name. + + @note The attributes are not XMLNodes. You may only query the + Next() attribute in a list. +*/ +class TINYXML2_LIB XMLAttribute +{ + friend class XMLElement; +public: + /// The name of the attribute. + const char* Name() const; + + /// The value of the attribute. + const char* Value() const; + + /// The next attribute in the list. + const XMLAttribute* Next() const { + return _next; + } + + /** IntValue interprets the attribute as an integer, and returns the value. + If the value isn't an integer, 0 will be returned. There is no error checking; + use QueryIntValue() if you need error checking. + */ + int IntValue() const { + int i=0; + QueryIntValue( &i ); + return i; + } + /// Query as an unsigned integer. See IntValue() + unsigned UnsignedValue() const { + unsigned i=0; + QueryUnsignedValue( &i ); + return i; + } + /// Query as a boolean. See IntValue() + bool BoolValue() const { + bool b=false; + QueryBoolValue( &b ); + return b; + } + /// Query as a double. See IntValue() + double DoubleValue() const { + double d=0; + QueryDoubleValue( &d ); + return d; + } + /// Query as a float. See IntValue() + float FloatValue() const { + float f=0; + QueryFloatValue( &f ); + return f; + } + + /** QueryIntValue interprets the attribute as an integer, and returns the value + in the provided parameter. The function will return XML_NO_ERROR on success, + and XML_WRONG_ATTRIBUTE_TYPE if the conversion is not successful. + */ + XMLError QueryIntValue( int* value ) const; + /// See QueryIntValue + XMLError QueryUnsignedValue( unsigned int* value ) const; + /// See QueryIntValue + XMLError QueryBoolValue( bool* value ) const; + /// See QueryIntValue + XMLError QueryDoubleValue( double* value ) const; + /// See QueryIntValue + XMLError QueryFloatValue( float* value ) const; + + /// Set the attribute to a string value. + void SetAttribute( const char* value ); + /// Set the attribute to value. + void SetAttribute( int value ); + /// Set the attribute to value. + void SetAttribute( unsigned value ); + /// Set the attribute to value. + void SetAttribute( bool value ); + /// Set the attribute to value. + void SetAttribute( double value ); + /// Set the attribute to value. + void SetAttribute( float value ); + +private: + enum { BUF_SIZE = 200 }; + + XMLAttribute() : _next( 0 ), _memPool( 0 ) {} + virtual ~XMLAttribute() {} + + XMLAttribute( const XMLAttribute& ); // not supported + void operator=( const XMLAttribute& ); // not supported + void SetName( const char* name ); + + char* ParseDeep( char* p, bool processEntities ); + + mutable StrPair _name; + mutable StrPair _value; + XMLAttribute* _next; + MemPool* _memPool; +}; + + +/** The element is a container class. It has a value, the element name, + and can contain other elements, text, comments, and unknowns. + Elements also contain an arbitrary number of attributes. +*/ +class TINYXML2_LIB XMLElement : public XMLNode +{ + friend class XMLDocument; +public: + /// Get the name of an element (which is the Value() of the node.) + const char* Name() const { + return Value(); + } + /// Set the name of the element. + void SetName( const char* str, bool staticMem=false ) { + SetValue( str, staticMem ); + } + + virtual XMLElement* ToElement() { + return this; + } + virtual const XMLElement* ToElement() const { + return this; + } + virtual bool Accept( XMLVisitor* visitor ) const; + + /** Given an attribute name, Attribute() returns the value + for the attribute of that name, or null if none + exists. For example: + + @verbatim + const char* value = ele->Attribute( "foo" ); + @endverbatim + + The 'value' parameter is normally null. However, if specified, + the attribute will only be returned if the 'name' and 'value' + match. This allow you to write code: + + @verbatim + if ( ele->Attribute( "foo", "bar" ) ) callFooIsBar(); + @endverbatim + + rather than: + @verbatim + if ( ele->Attribute( "foo" ) ) { + if ( strcmp( ele->Attribute( "foo" ), "bar" ) == 0 ) callFooIsBar(); + } + @endverbatim + */ + const char* Attribute( const char* name, const char* value=0 ) const; + + /** Given an attribute name, IntAttribute() returns the value + of the attribute interpreted as an integer. 0 will be + returned if there is an error. For a method with error + checking, see QueryIntAttribute() + */ + int IntAttribute( const char* name ) const { + int i=0; + QueryIntAttribute( name, &i ); + return i; + } + /// See IntAttribute() + unsigned UnsignedAttribute( const char* name ) const { + unsigned i=0; + QueryUnsignedAttribute( name, &i ); + return i; + } + /// See IntAttribute() + bool BoolAttribute( const char* name ) const { + bool b=false; + QueryBoolAttribute( name, &b ); + return b; + } + /// See IntAttribute() + double DoubleAttribute( const char* name ) const { + double d=0; + QueryDoubleAttribute( name, &d ); + return d; + } + /// See IntAttribute() + float FloatAttribute( const char* name ) const { + float f=0; + QueryFloatAttribute( name, &f ); + return f; + } + + /** Given an attribute name, QueryIntAttribute() returns + XML_NO_ERROR, XML_WRONG_ATTRIBUTE_TYPE if the conversion + can't be performed, or XML_NO_ATTRIBUTE if the attribute + doesn't exist. If successful, the result of the conversion + will be written to 'value'. If not successful, nothing will + be written to 'value'. This allows you to provide default + value: + + @verbatim + int value = 10; + QueryIntAttribute( "foo", &value ); // if "foo" isn't found, value will still be 10 + @endverbatim + */ + XMLError QueryIntAttribute( const char* name, int* value ) const { + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return XML_NO_ATTRIBUTE; + } + return a->QueryIntValue( value ); + } + /// See QueryIntAttribute() + XMLError QueryUnsignedAttribute( const char* name, unsigned int* value ) const { + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return XML_NO_ATTRIBUTE; + } + return a->QueryUnsignedValue( value ); + } + /// See QueryIntAttribute() + XMLError QueryBoolAttribute( const char* name, bool* value ) const { + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return XML_NO_ATTRIBUTE; + } + return a->QueryBoolValue( value ); + } + /// See QueryIntAttribute() + XMLError QueryDoubleAttribute( const char* name, double* value ) const { + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return XML_NO_ATTRIBUTE; + } + return a->QueryDoubleValue( value ); + } + /// See QueryIntAttribute() + XMLError QueryFloatAttribute( const char* name, float* value ) const { + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return XML_NO_ATTRIBUTE; + } + return a->QueryFloatValue( value ); + } + + + /** Given an attribute name, QueryAttribute() returns + XML_NO_ERROR, XML_WRONG_ATTRIBUTE_TYPE if the conversion + can't be performed, or XML_NO_ATTRIBUTE if the attribute + doesn't exist. It is overloaded for the primitive types, + and is a generally more convenient replacement of + QueryIntAttribute() and related functions. + + If successful, the result of the conversion + will be written to 'value'. If not successful, nothing will + be written to 'value'. This allows you to provide default + value: + + @verbatim + int value = 10; + QueryAttribute( "foo", &value ); // if "foo" isn't found, value will still be 10 + @endverbatim + */ + int QueryAttribute( const char* name, int* value ) const { + return QueryIntAttribute( name, value ); + } + + int QueryAttribute( const char* name, unsigned int* value ) const { + return QueryUnsignedAttribute( name, value ); + } + + int QueryAttribute( const char* name, bool* value ) const { + return QueryBoolAttribute( name, value ); + } + + int QueryAttribute( const char* name, double* value ) const { + return QueryDoubleAttribute( name, value ); + } + + int QueryAttribute( const char* name, float* value ) const { + return QueryFloatAttribute( name, value ); + } + + /// Sets the named attribute to value. + void SetAttribute( const char* name, const char* value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + /// Sets the named attribute to value. + void SetAttribute( const char* name, int value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + /// Sets the named attribute to value. + void SetAttribute( const char* name, unsigned value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + /// Sets the named attribute to value. + void SetAttribute( const char* name, bool value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + /// Sets the named attribute to value. + void SetAttribute( const char* name, double value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + /// Sets the named attribute to value. + void SetAttribute( const char* name, float value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + + /** + Delete an attribute. + */ + void DeleteAttribute( const char* name ); + + /// Return the first attribute in the list. + const XMLAttribute* FirstAttribute() const { + return _rootAttribute; + } + /// Query a specific attribute in the list. + const XMLAttribute* FindAttribute( const char* name ) const; + + /** Convenience function for easy access to the text inside an element. Although easy + and concise, GetText() is limited compared to getting the XMLText child + and accessing it directly. + + If the first child of 'this' is a XMLText, the GetText() + returns the character string of the Text node, else null is returned. + + This is a convenient method for getting the text of simple contained text: + @verbatim + This is text + const char* str = fooElement->GetText(); + @endverbatim + + 'str' will be a pointer to "This is text". + + Note that this function can be misleading. If the element foo was created from + this XML: + @verbatim + This is text + @endverbatim + + then the value of str would be null. The first child node isn't a text node, it is + another element. From this XML: + @verbatim + This is text + @endverbatim + GetText() will return "This is ". + */ + const char* GetText() const; + + /** Convenience function for easy access to the text inside an element. Although easy + and concise, SetText() is limited compared to creating an XMLText child + and mutating it directly. + + If the first child of 'this' is a XMLText, SetText() sets its value to + the given string, otherwise it will create a first child that is an XMLText. + + This is a convenient method for setting the text of simple contained text: + @verbatim + This is text + fooElement->SetText( "Hullaballoo!" ); + Hullaballoo! + @endverbatim + + Note that this function can be misleading. If the element foo was created from + this XML: + @verbatim + This is text + @endverbatim + + then it will not change "This is text", but rather prefix it with a text element: + @verbatim + Hullaballoo!This is text + @endverbatim + + For this XML: + @verbatim + + @endverbatim + SetText() will generate + @verbatim + Hullaballoo! + @endverbatim + */ + void SetText( const char* inText ); + /// Convenience method for setting text inside an element. See SetText() for important limitations. + void SetText( int value ); + /// Convenience method for setting text inside an element. See SetText() for important limitations. + void SetText( unsigned value ); + /// Convenience method for setting text inside an element. See SetText() for important limitations. + void SetText( bool value ); + /// Convenience method for setting text inside an element. See SetText() for important limitations. + void SetText( double value ); + /// Convenience method for setting text inside an element. See SetText() for important limitations. + void SetText( float value ); + + /** + Convenience method to query the value of a child text node. This is probably best + shown by example. Given you have a document is this form: + @verbatim + + 1 + 1.4 + + @endverbatim + + The QueryIntText() and similar functions provide a safe and easier way to get to the + "value" of x and y. + + @verbatim + int x = 0; + float y = 0; // types of x and y are contrived for example + const XMLElement* xElement = pointElement->FirstChildElement( "x" ); + const XMLElement* yElement = pointElement->FirstChildElement( "y" ); + xElement->QueryIntText( &x ); + yElement->QueryFloatText( &y ); + @endverbatim + + @returns XML_SUCCESS (0) on success, XML_CAN_NOT_CONVERT_TEXT if the text cannot be converted + to the requested type, and XML_NO_TEXT_NODE if there is no child text to query. + + */ + XMLError QueryIntText( int* ival ) const; + /// See QueryIntText() + XMLError QueryUnsignedText( unsigned* uval ) const; + /// See QueryIntText() + XMLError QueryBoolText( bool* bval ) const; + /// See QueryIntText() + XMLError QueryDoubleText( double* dval ) const; + /// See QueryIntText() + XMLError QueryFloatText( float* fval ) const; + + // internal: + enum { + OPEN, // + CLOSED, // + CLOSING // + }; + int ClosingType() const { + return _closingType; + } + virtual XMLNode* ShallowClone( XMLDocument* document ) const; + virtual bool ShallowEqual( const XMLNode* compare ) const; + +protected: + char* ParseDeep( char* p, StrPair* endTag ); + +private: + XMLElement( XMLDocument* doc ); + virtual ~XMLElement(); + XMLElement( const XMLElement& ); // not supported + void operator=( const XMLElement& ); // not supported + + XMLAttribute* FindAttribute( const char* name ) { + return const_cast(const_cast(this)->FindAttribute( name )); + } + XMLAttribute* FindOrCreateAttribute( const char* name ); + //void LinkAttribute( XMLAttribute* attrib ); + char* ParseAttributes( char* p ); + static void DeleteAttribute( XMLAttribute* attribute ); + + enum { BUF_SIZE = 200 }; + int _closingType; + // The attribute list is ordered; there is no 'lastAttribute' + // because the list needs to be scanned for dupes before adding + // a new attribute. + XMLAttribute* _rootAttribute; +}; + + +enum Whitespace { + PRESERVE_WHITESPACE, + COLLAPSE_WHITESPACE +}; + + +/** A Document binds together all the functionality. + It can be saved, loaded, and printed to the screen. + All Nodes are connected and allocated to a Document. + If the Document is deleted, all its Nodes are also deleted. +*/ +class TINYXML2_LIB XMLDocument : public XMLNode +{ + friend class XMLElement; +public: + /// constructor + XMLDocument( bool processEntities = true, Whitespace = PRESERVE_WHITESPACE ); + ~XMLDocument(); + + virtual XMLDocument* ToDocument() { + TIXMLASSERT( this == _document ); + return this; + } + virtual const XMLDocument* ToDocument() const { + TIXMLASSERT( this == _document ); + return this; + } + + /** + Parse an XML file from a character string. + Returns XML_NO_ERROR (0) on success, or + an errorID. + + You may optionally pass in the 'nBytes', which is + the number of bytes which will be parsed. If not + specified, TinyXML-2 will assume 'xml' points to a + null terminated string. + */ + XMLError Parse( const char* xml, size_t nBytes=(size_t)(-1) ); + + /** + Load an XML file from disk. + Returns XML_NO_ERROR (0) on success, or + an errorID. + */ + XMLError LoadFile( const char* filename ); + + /** + Load an XML file from disk. You are responsible + for providing and closing the FILE*. + + NOTE: The file should be opened as binary ("rb") + not text in order for TinyXML-2 to correctly + do newline normalization. + + Returns XML_NO_ERROR (0) on success, or + an errorID. + */ + XMLError LoadFile( FILE* ); + + /** + Save the XML file to disk. + Returns XML_NO_ERROR (0) on success, or + an errorID. + */ + XMLError SaveFile( const char* filename, bool compact = false ); + + /** + Save the XML file to disk. You are responsible + for providing and closing the FILE*. + + Returns XML_NO_ERROR (0) on success, or + an errorID. + */ + XMLError SaveFile( FILE* fp, bool compact = false ); + + bool ProcessEntities() const { + return _processEntities; + } + Whitespace WhitespaceMode() const { + return _whitespace; + } + + /** + Returns true if this document has a leading Byte Order Mark of UTF8. + */ + bool HasBOM() const { + return _writeBOM; + } + /** Sets whether to write the BOM when writing the file. + */ + void SetBOM( bool useBOM ) { + _writeBOM = useBOM; + } + + /** Return the root element of DOM. Equivalent to FirstChildElement(). + To get the first node, use FirstChild(). + */ + XMLElement* RootElement() { + return FirstChildElement(); + } + const XMLElement* RootElement() const { + return FirstChildElement(); + } + + /** Print the Document. If the Printer is not provided, it will + print to stdout. If you provide Printer, this can print to a file: + @verbatim + XMLPrinter printer( fp ); + doc.Print( &printer ); + @endverbatim + + Or you can use a printer to print to memory: + @verbatim + XMLPrinter printer; + doc.Print( &printer ); + // printer.CStr() has a const char* to the XML + @endverbatim + */ + void Print( XMLPrinter* streamer=0 ) const; + virtual bool Accept( XMLVisitor* visitor ) const; + + /** + Create a new Element associated with + this Document. The memory for the Element + is managed by the Document. + */ + XMLElement* NewElement( const char* name ); + /** + Create a new Comment associated with + this Document. The memory for the Comment + is managed by the Document. + */ + XMLComment* NewComment( const char* comment ); + /** + Create a new Text associated with + this Document. The memory for the Text + is managed by the Document. + */ + XMLText* NewText( const char* text ); + /** + Create a new Declaration associated with + this Document. The memory for the object + is managed by the Document. + + If the 'text' param is null, the standard + declaration is used.: + @verbatim + + @endverbatim + */ + XMLDeclaration* NewDeclaration( const char* text=0 ); + /** + Create a new Unknown associated with + this Document. The memory for the object + is managed by the Document. + */ + XMLUnknown* NewUnknown( const char* text ); + + /** + Delete a node associated with this document. + It will be unlinked from the DOM. + */ + void DeleteNode( XMLNode* node ); + + void SetError( XMLError error, const char* str1, const char* str2 ); + + /// Return true if there was an error parsing the document. + bool Error() const { + return _errorID != XML_SUCCESS; + } + /// Return the errorID. + XMLError ErrorID() const { + return _errorID; + } + const char* ErrorName() const; + + /// Return a possibly helpful diagnostic location or string. + const char* GetErrorStr1() const { + return _errorStr1; + } + /// Return a possibly helpful secondary diagnostic location or string. + const char* GetErrorStr2() const { + return _errorStr2; + } + /// If there is an error, print it to stdout. + void PrintError() const; + + /// Clear the document, resetting it to the initial state. + void Clear(); + + // internal + char* Identify( char* p, XMLNode** node ); + + virtual XMLNode* ShallowClone( XMLDocument* /*document*/ ) const { + return 0; + } + virtual bool ShallowEqual( const XMLNode* /*compare*/ ) const { + return false; + } + +private: + XMLDocument( const XMLDocument& ); // not supported + void operator=( const XMLDocument& ); // not supported + + bool _writeBOM; + bool _processEntities; + XMLError _errorID; + Whitespace _whitespace; + const char* _errorStr1; + const char* _errorStr2; + char* _charBuffer; + + MemPoolT< sizeof(XMLElement) > _elementPool; + MemPoolT< sizeof(XMLAttribute) > _attributePool; + MemPoolT< sizeof(XMLText) > _textPool; + MemPoolT< sizeof(XMLComment) > _commentPool; + + static const char* _errorNames[XML_ERROR_COUNT]; + + void Parse(); +}; + + +/** + A XMLHandle is a class that wraps a node pointer with null checks; this is + an incredibly useful thing. Note that XMLHandle is not part of the TinyXML-2 + DOM structure. It is a separate utility class. + + Take an example: + @verbatim + + + + + + + @endverbatim + + Assuming you want the value of "attributeB" in the 2nd "Child" element, it's very + easy to write a *lot* of code that looks like: + + @verbatim + XMLElement* root = document.FirstChildElement( "Document" ); + if ( root ) + { + XMLElement* element = root->FirstChildElement( "Element" ); + if ( element ) + { + XMLElement* child = element->FirstChildElement( "Child" ); + if ( child ) + { + XMLElement* child2 = child->NextSiblingElement( "Child" ); + if ( child2 ) + { + // Finally do something useful. + @endverbatim + + And that doesn't even cover "else" cases. XMLHandle addresses the verbosity + of such code. A XMLHandle checks for null pointers so it is perfectly safe + and correct to use: + + @verbatim + XMLHandle docHandle( &document ); + XMLElement* child2 = docHandle.FirstChildElement( "Document" ).FirstChildElement( "Element" ).FirstChildElement().NextSiblingElement(); + if ( child2 ) + { + // do something useful + @endverbatim + + Which is MUCH more concise and useful. + + It is also safe to copy handles - internally they are nothing more than node pointers. + @verbatim + XMLHandle handleCopy = handle; + @endverbatim + + See also XMLConstHandle, which is the same as XMLHandle, but operates on const objects. +*/ +class TINYXML2_LIB XMLHandle +{ +public: + /// Create a handle from any node (at any depth of the tree.) This can be a null pointer. + XMLHandle( XMLNode* node ) { + _node = node; + } + /// Create a handle from a node. + XMLHandle( XMLNode& node ) { + _node = &node; + } + /// Copy constructor + XMLHandle( const XMLHandle& ref ) { + _node = ref._node; + } + /// Assignment + XMLHandle& operator=( const XMLHandle& ref ) { + _node = ref._node; + return *this; + } + + /// Get the first child of this handle. + XMLHandle FirstChild() { + return XMLHandle( _node ? _node->FirstChild() : 0 ); + } + /// Get the first child element of this handle. + XMLHandle FirstChildElement( const char* name = 0 ) { + return XMLHandle( _node ? _node->FirstChildElement( name ) : 0 ); + } + /// Get the last child of this handle. + XMLHandle LastChild() { + return XMLHandle( _node ? _node->LastChild() : 0 ); + } + /// Get the last child element of this handle. + XMLHandle LastChildElement( const char* name = 0 ) { + return XMLHandle( _node ? _node->LastChildElement( name ) : 0 ); + } + /// Get the previous sibling of this handle. + XMLHandle PreviousSibling() { + return XMLHandle( _node ? _node->PreviousSibling() : 0 ); + } + /// Get the previous sibling element of this handle. + XMLHandle PreviousSiblingElement( const char* name = 0 ) { + return XMLHandle( _node ? _node->PreviousSiblingElement( name ) : 0 ); + } + /// Get the next sibling of this handle. + XMLHandle NextSibling() { + return XMLHandle( _node ? _node->NextSibling() : 0 ); + } + /// Get the next sibling element of this handle. + XMLHandle NextSiblingElement( const char* name = 0 ) { + return XMLHandle( _node ? _node->NextSiblingElement( name ) : 0 ); + } + + /// Safe cast to XMLNode. This can return null. + XMLNode* ToNode() { + return _node; + } + /// Safe cast to XMLElement. This can return null. + XMLElement* ToElement() { + return ( ( _node == 0 ) ? 0 : _node->ToElement() ); + } + /// Safe cast to XMLText. This can return null. + XMLText* ToText() { + return ( ( _node == 0 ) ? 0 : _node->ToText() ); + } + /// Safe cast to XMLUnknown. This can return null. + XMLUnknown* ToUnknown() { + return ( ( _node == 0 ) ? 0 : _node->ToUnknown() ); + } + /// Safe cast to XMLDeclaration. This can return null. + XMLDeclaration* ToDeclaration() { + return ( ( _node == 0 ) ? 0 : _node->ToDeclaration() ); + } + +private: + XMLNode* _node; +}; + + +/** + A variant of the XMLHandle class for working with const XMLNodes and Documents. It is the + same in all regards, except for the 'const' qualifiers. See XMLHandle for API. +*/ +class TINYXML2_LIB XMLConstHandle +{ +public: + XMLConstHandle( const XMLNode* node ) { + _node = node; + } + XMLConstHandle( const XMLNode& node ) { + _node = &node; + } + XMLConstHandle( const XMLConstHandle& ref ) { + _node = ref._node; + } + + XMLConstHandle& operator=( const XMLConstHandle& ref ) { + _node = ref._node; + return *this; + } + + const XMLConstHandle FirstChild() const { + return XMLConstHandle( _node ? _node->FirstChild() : 0 ); + } + const XMLConstHandle FirstChildElement( const char* name = 0 ) const { + return XMLConstHandle( _node ? _node->FirstChildElement( name ) : 0 ); + } + const XMLConstHandle LastChild() const { + return XMLConstHandle( _node ? _node->LastChild() : 0 ); + } + const XMLConstHandle LastChildElement( const char* name = 0 ) const { + return XMLConstHandle( _node ? _node->LastChildElement( name ) : 0 ); + } + const XMLConstHandle PreviousSibling() const { + return XMLConstHandle( _node ? _node->PreviousSibling() : 0 ); + } + const XMLConstHandle PreviousSiblingElement( const char* name = 0 ) const { + return XMLConstHandle( _node ? _node->PreviousSiblingElement( name ) : 0 ); + } + const XMLConstHandle NextSibling() const { + return XMLConstHandle( _node ? _node->NextSibling() : 0 ); + } + const XMLConstHandle NextSiblingElement( const char* name = 0 ) const { + return XMLConstHandle( _node ? _node->NextSiblingElement( name ) : 0 ); + } + + + const XMLNode* ToNode() const { + return _node; + } + const XMLElement* ToElement() const { + return ( ( _node == 0 ) ? 0 : _node->ToElement() ); + } + const XMLText* ToText() const { + return ( ( _node == 0 ) ? 0 : _node->ToText() ); + } + const XMLUnknown* ToUnknown() const { + return ( ( _node == 0 ) ? 0 : _node->ToUnknown() ); + } + const XMLDeclaration* ToDeclaration() const { + return ( ( _node == 0 ) ? 0 : _node->ToDeclaration() ); + } + +private: + const XMLNode* _node; +}; + + +/** + Printing functionality. The XMLPrinter gives you more + options than the XMLDocument::Print() method. + + It can: + -# Print to memory. + -# Print to a file you provide. + -# Print XML without a XMLDocument. + + Print to Memory + + @verbatim + XMLPrinter printer; + doc.Print( &printer ); + SomeFunction( printer.CStr() ); + @endverbatim + + Print to a File + + You provide the file pointer. + @verbatim + XMLPrinter printer( fp ); + doc.Print( &printer ); + @endverbatim + + Print without a XMLDocument + + When loading, an XML parser is very useful. However, sometimes + when saving, it just gets in the way. The code is often set up + for streaming, and constructing the DOM is just overhead. + + The Printer supports the streaming case. The following code + prints out a trivially simple XML file without ever creating + an XML document. + + @verbatim + XMLPrinter printer( fp ); + printer.OpenElement( "foo" ); + printer.PushAttribute( "foo", "bar" ); + printer.CloseElement(); + @endverbatim +*/ +class TINYXML2_LIB XMLPrinter : public XMLVisitor +{ +public: + /** Construct the printer. If the FILE* is specified, + this will print to the FILE. Else it will print + to memory, and the result is available in CStr(). + If 'compact' is set to true, then output is created + with only required whitespace and newlines. + */ + XMLPrinter( FILE* file=0, bool compact = false, int depth = 0 ); + virtual ~XMLPrinter() {} + + /** If streaming, write the BOM and declaration. */ + void PushHeader( bool writeBOM, bool writeDeclaration ); + /** If streaming, start writing an element. + The element must be closed with CloseElement() + */ + void OpenElement( const char* name, bool compactMode=false ); + /// If streaming, add an attribute to an open element. + void PushAttribute( const char* name, const char* value ); + void PushAttribute( const char* name, int value ); + void PushAttribute( const char* name, unsigned value ); + void PushAttribute( const char* name, bool value ); + void PushAttribute( const char* name, double value ); + /// If streaming, close the Element. + virtual void CloseElement( bool compactMode=false ); + + /// Add a text node. + void PushText( const char* text, bool cdata=false ); + /// Add a text node from an integer. + void PushText( int value ); + /// Add a text node from an unsigned. + void PushText( unsigned value ); + /// Add a text node from a bool. + void PushText( bool value ); + /// Add a text node from a float. + void PushText( float value ); + /// Add a text node from a double. + void PushText( double value ); + + /// Add a comment + void PushComment( const char* comment ); + + void PushDeclaration( const char* value ); + void PushUnknown( const char* value ); + + virtual bool VisitEnter( const XMLDocument& /*doc*/ ); + virtual bool VisitExit( const XMLDocument& /*doc*/ ) { + return true; + } + + virtual bool VisitEnter( const XMLElement& element, const XMLAttribute* attribute ); + virtual bool VisitExit( const XMLElement& element ); + + virtual bool Visit( const XMLText& text ); + virtual bool Visit( const XMLComment& comment ); + virtual bool Visit( const XMLDeclaration& declaration ); + virtual bool Visit( const XMLUnknown& unknown ); + + /** + If in print to memory mode, return a pointer to + the XML file in memory. + */ + const char* CStr() const { + return _buffer.Mem(); + } + /** + If in print to memory mode, return the size + of the XML file in memory. (Note the size returned + includes the terminating null.) + */ + int CStrSize() const { + return _buffer.Size(); + } + /** + If in print to memory mode, reset the buffer to the + beginning. + */ + void ClearBuffer() { + _buffer.Clear(); + _buffer.Push(0); + } + +protected: + virtual bool CompactMode( const XMLElement& ) { return _compactMode; } + + /** Prints out the space before an element. You may override to change + the space and tabs used. A PrintSpace() override should call Print(). + */ + virtual void PrintSpace( int depth ); + void Print( const char* format, ... ); + + void SealElementIfJustOpened(); + bool _elementJustOpened; + DynArray< const char*, 10 > _stack; + +private: + void PrintString( const char*, bool restrictedEntitySet ); // prints out, after detecting entities. + + bool _firstElement; + FILE* _fp; + int _depth; + int _textDepth; + bool _processEntities; + bool _compactMode; + + enum { + ENTITY_RANGE = 64, + BUF_SIZE = 200 + }; + bool _entityFlag[ENTITY_RANGE]; + bool _restrictedEntityFlag[ENTITY_RANGE]; + + DynArray< char, 20 > _buffer; +}; + + +} // tinyxml2 + +#if defined(_MSC_VER) +# pragma warning(pop) +#endif + +#endif // TINYXML2_INCLUDED