C++调用tinyxml2读写xml
2024-05-18 11:36:29
C++调用tinyxml2读写xml
- 本例子一共只需要3个文件
- 获取所有代码请到github下载地址：
- 哔哩哔哩有详细的视频讲解地址：
- main.cpp
- tinyxml2.h
- tinyxml2.cpp
- 其他
本例子一共只需要3个文件
大家好，本文目的是实现C++调用tinyxml2读写xml文件。
第一个文件是自己编写的main.cpp文件；
第二个文件和第三个文件分别是tinyxml2.h和tinyxml2.cpp这两个文件可以在官方完整上面找到http://www.grinninglizard.com/tinyxml2/index.html
获取所有代码请到github下载地址：
https://github.com/SDJMCGSJZY/tinyxml2.git
哔哩哔哩有详细的视频讲解地址：
观看方法一：点击链接: link.
观看方法二：复制以下链接用浏览器打开（ https://www.bilibili.com/video/av95515829/）
main.cpp
自己需要写的main.cpp文件
// An highlighted block
#include <iostream>
#include"tinyxml2.h"using namespace std;
using namespace tinyxml2;void createXml()
{//------------//声明要创建的xml文件//------------tinyxml2::XMLDocument xml;tinyxml2::XMLDeclaration* declaration = xml.NewDeclaration();xml.InsertFirstChild(declaration);//------------//创建根节点//------------tinyxml2::XMLElement* rootNode = xml.NewElement("computer");xml.InsertEndChild(rootNode);//------------//创建子节点//------------tinyxml2::XMLElement* root_1_NodeComputerMonitor = xml.NewElement("ComputerMonitor");tinyxml2::XMLElement* root_1_NodeKeyboard = xml.NewElement("Keyboard");tinyxml2::XMLElement* root_1_CPU = xml.NewElement("CPU");//------------//给子节点增加内容//------------tinyxml2::XMLText* text_root_1_NodeComputerMonitor = xml.NewText("SAMSUNG");root_1_NodeComputerMonitor->InsertFirstChild(text_root_1_NodeComputerMonitor);tinyxml2::XMLText* text_root_1_root_1_CPU = xml.NewText("intel");root_1_CPU->InsertFirstChild(text_root_1_root_1_CPU);//------------//给子节点增加内容//------------root_1_NodeComputerMonitor->SetAttribute("size", "15");root_1_CPU->SetAttribute("series", "XEON");//------------//创建子节点的子节点//------------tinyxml2::XMLElement* root_2_NodeKeyboardAttribute = xml.NewElement("KeyboardAttribute");//------------//给子节点的子节点增加内容//------------tinyxml2::XMLText* text_root_2_NodeKeyboardAttribute = xml.NewText("cherry Mechanical Keyboard");root_2_NodeKeyboardAttribute->InsertFirstChild(text_root_2_NodeKeyboardAttribute);//------------//构建xml树，根节点的下的子节点树//------------rootNode->InsertEndChild(root_1_NodeComputerMonitor);//childNodeStu是root的子节点rootNode->InsertEndChild(root_1_NodeKeyboard);rootNode->InsertEndChild(root_1_CPU);//------------//构建xml树，根节点的下的子节点的子节点树//------------root_1_NodeKeyboard->InsertEndChild(root_2_NodeKeyboardAttribute);//------------//将xml保存到当前项目中//------------xml.SaveFile("computer.xml");
}void deCodeXml()
{//------------//声明//------------tinyxml2::XMLDocument xml;//------------//导入xml文件//------------if (xml.LoadFile("computer.xml") != XML_SUCCESS){return;}//------------//找到导入的xml的根节点//------------tinyxml2::XMLElement* rootNode = xml.RootElement();if (rootNode == NULL) {return;}//------------//读取第一层子节点信息并且打印在控制台上//------------tinyxml2::XMLElement* root_1_NodeComputerMonitor = rootNode->FirstChildElement("ComputerMonitor");std::string text_root_1_NodeComputerMonitor = root_1_NodeComputerMonitor->GetText();cout << "text_root_1_NodeComputerMonitor = " << text_root_1_NodeComputerMonitor.c_str()<<endl;//------------//读取第二层子节点信息并且打印在控制台上//------------tinyxml2::XMLElement* root_1_NodeKeyboard = rootNode->FirstChildElement("Keyboard");tinyxml2::XMLElement* root_2_NodeKeyboardAttribute = root_1_NodeKeyboard->FirstChildElement("KeyboardAttribute");std::string text_root_2_NodeKeyboardAttribute = root_2_NodeKeyboardAttribute->GetText();cout << "text_root_2_NodeKeyboardAttribute = " << text_root_2_NodeKeyboardAttribute.c_str() << endl;
}
int main()
{cout << "----------------------begin create xml-----------------------" << endl;createXml();cout << "----------------------finished create xml--------------------" << endl;cout << "-----------------------begin read xml------------------------" << endl;deCodeXml();cout << "-----------------------finished read xml---------------------" << endl;return 0;
}
tinyxml2.h
大家可以去这个网站下载，我是在这个网站里面的github中找到的；
http://www.grinninglizard.com/tinyxml2/index.html
/*
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 <ctype.h>
# include <limits.h>
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# if defined(__PS3__)
# include <stddef.h>
# endif
#else
# include <cctype>
# include <climits>
# include <cstdio>
# include <cstdlib>
# include <cstring>
#endif
#include <stdint.h>/*TODO: intern strings instead of allocation.
*/
/*gcc:g++ -Wall -DTINYXML2_DEBUG tinyxml2.cpp xmltest.cpp -o gccxmltest.exeFormatting, Artistic Style:AStyle.exe --style=1tbs --indent-switches --break-closing-brackets --indent-preprocessor tinyxml2.cpp tinyxml2.h
*/#if defined( _DEBUG ) || defined (__DEBUG__)
# ifndef TINYXML2_DEBUG
# define TINYXML2_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
#elif __GNUC__ >= 4
# define TINYXML2_LIB __attribute__((visibility("default")))
#else
# define TINYXML2_LIB
#endif#if defined(TINYXML2_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 <android/log.h>
# define TIXMLASSERT( x ) if ( !(x)) { __android_log_assert( "assert", "grinliz", "ASSERT in '%s' at %d.", __FILE__, __LINE__ ); }
# else
# include <assert.h>
# define TIXMLASSERT assert
# endif
#else
# define TIXMLASSERT( x ) {}
#endif/* Versioning, past 1.0.14:http://semver.org/
*/
static const int TIXML2_MAJOR_VERSION = 8;
static const int TIXML2_MINOR_VERSION = 0;
static const int TIXML2_PATCH_VERSION = 0;#define TINYXML2_MAJOR_VERSION 8
#define TINYXML2_MINOR_VERSION 0
#define TINYXML2_PATCH_VERSION 0// A fixed element depth limit is problematic. There needs to be a
// limit to avoid a stack overflow. However, that limit varies per
// system, and the capacity of the stack. On the other hand, it's a trivial
// attack that can result from ill, malicious, or even correctly formed XML,
// so there needs to be a limit in place.
static const int TINYXML2_MAX_ELEMENT_DEPTH = 100;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 endpointers into the XML file itself, and will apply normalizationand entity translation if actually read. Can also store (and memorymanage) a traditional char[]Isn't clear why TINYXML2_LIB is needed; but seems to fix #719
*/
class TINYXML2_LIB 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 ) {TIXMLASSERT( start );TIXMLASSERT( end );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<char*>(str);}void SetStr( const char* str, int flags=0 );char* ParseText( char* in, const char* endTag, int strFlags, int* curLineNumPtr );char* ParseName( char* in );void TransferTo( StrPair* other );void Reset();private:void CollapseWhitespace();enum {NEEDS_FLUSH = 0x100,NEEDS_DELETE = 0x200};int _flags;char* _start;char* _end;StrPair( const StrPair& other ); // not supportedvoid operator=( const 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 notcause a call to new/delete
*/
template <class T, int INITIAL_SIZE>
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;++_size;}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 );--_size;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;}void SwapRemove(int i) {TIXMLASSERT(i >= 0 && i < _size);TIXMLASSERT(_size > 0);_mem[i] = _mem[_size - 1];--_size;}const T* Mem() const {TIXMLASSERT( _mem );return _mem;}T* Mem() {TIXMLASSERT( _mem );return _mem;}private:DynArray( const DynArray& ); // not supportedvoid operator=( const DynArray& ); // not supportedvoid EnsureCapacity( int cap ) {TIXMLASSERT( cap > 0 );if ( cap > _allocated ) {TIXMLASSERT( cap <= INT_MAX / 2 );const int newAllocated = cap * 2;T* newMem = new T[newAllocated];TIXMLASSERT( newAllocated >= _size );memcpy( newMem, _mem, sizeof(T)*_size ); // warning: not using constructors, only works for PODsif ( _mem != _pool ) {delete [] _mem;}_mem = newMem;_allocated = newAllocated;}}T* _mem;T _pool[INITIAL_SIZE];int _allocated; // objects allocatedint _size; // number objects in use
};/*Parent virtual class of a pool for fast allocationand 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;
};/*Template child class to create pools of the correct type.
*/
template< int ITEM_SIZE >
class MemPoolT : public MemPool
{public:MemPoolT() : _blockPtrs(), _root(0), _currentAllocs(0), _nAllocs(0), _maxAllocs(0), _nUntracked(0) {}~MemPoolT() {MemPoolT< ITEM_SIZE >::Clear();}void Clear() {// Delete the blocks.while( !_blockPtrs.Empty()) {Block* lastBlock = _blockPtrs.Pop();delete lastBlock;}_root = 0;_currentAllocs = 0;_nAllocs = 0;_maxAllocs = 0;_nUntracked = 0;}virtual int ItemSize() const {return ITEM_SIZE;}int CurrentAllocs() const {return _currentAllocs;}virtual void* Alloc() {if ( !_root ) {// Need a new block.Block* block = new Block();_blockPtrs.Push( block );Item* blockItems = block->items;for( int i = 0; i < ITEMS_PER_BLOCK - 1; ++i ) {blockItems[i].next = &(blockItems[i + 1]);}blockItems[ITEMS_PER_BLOCK - 1].next = 0;_root = blockItems;}Item* const result = _root;TIXMLASSERT( result != 0 );_root = _root->next;++_currentAllocs;if ( _currentAllocs > _maxAllocs ) {_maxAllocs = _currentAllocs;}++_nAllocs;++_nUntracked;return result;}virtual void Free( void* mem ) {if ( !mem ) {return;}--_currentAllocs;Item* item = static_cast<Item*>( mem );
#ifdef TINYXML2_DEBUGmemset( item, 0xfe, sizeof( *item ) );
#endifitem->next = _root;_root = item;}void Trace( const char* name ) {printf( "Mempool %s watermark=%d [%dk] current=%d size=%d nAlloc=%d blocks=%d\n",name, _maxAllocs, _maxAllocs * ITEM_SIZE / 1024, _currentAllocs,ITEM_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// Declared public because some compilers do not accept to use ITEMS_PER_BLOCK// in private part if ITEMS_PER_BLOCK is privateenum { ITEMS_PER_BLOCK = (4 * 1024) / ITEM_SIZE };private:MemPoolT( const MemPoolT& ); // not supportedvoid operator=( const MemPoolT& ); // not supportedunion Item {Item* next;char itemData[ITEM_SIZE];};struct Block {Item items[ITEMS_PER_BLOCK];};DynArray< Block*, 10 > _blockPtrs;Item* _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 XMLVisitorclass to handle callbacks. For nodes that contain other nodes (Document, Element)you will get called with a VisitEnter/VisitExit pair. Nodes that are always leafsare simply called with Visit().If you return 'true' from a Visit method, recursive parsing will continue. If you returnfalse, <b>no children of this node or its siblings</b> will be visited.All flavors of Visit methods have a default implementation that returns 'true' (continuevisiting). 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_PARSING_ELEMENT,XML_ERROR_PARSING_ATTRIBUTE,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_ELEMENT_DEPTH_EXCEEDED,XML_ERROR_COUNT
};/*Utility functionality.
*/
class TINYXML2_LIB XMLUtil
{public:static const char* SkipWhiteSpace( const char* p, int* curLineNumPtr ) {TIXMLASSERT( p );while( IsWhiteSpace(*p) ) {if (curLineNumPtr && *p == '\n') {++(*curLineNumPtr);}++p;}TIXMLASSERT( p );return p;}static char* SkipWhiteSpace( char* const p, int* curLineNumPtr ) {return const_cast<char*>( SkipWhiteSpace( const_cast<const char*>(p), curLineNumPtr ) );}// 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<unsigned char>(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;}TIXMLASSERT( p );TIXMLASSERT( q );TIXMLASSERT( nChar >= 0 );return strncmp( p, q, nChar ) == 0;}inline static bool IsUTF8Continuation( const 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 stringsstatic 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 );static void ToStr(int64_t v, char* buffer, int bufferSize);static void ToStr(uint64_t v, char* buffer, int bufferSize);// converts strings to primitive typesstatic 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 );static bool ToInt64(const char* str, int64_t* value);static bool ToUnsigned64(const char* str, uint64_t* value);// Changes what is serialized for a boolean value.// Default to "true" and "false". Shouldn't be changed// unless you have a special testing or compatibility need.// Be careful: static, global, & not thread safe.// Be sure to set static const memory as parameters.static void SetBoolSerialization(const char* writeTrue, const char* writeFalse);private:static const char* writeBoolTrue;static const char* writeBoolFalse;
};/** XMLNode is a base class for every object that is in theXML Document Object Model (DOM), except XMLAttributes.Nodes have siblings, a parent, and children which canbe navigated. A node is always in a XMLDocument.The type of a XMLNode can be queried, and it canbe cast to its more defined type.A XMLDocument allocates memory for all its Nodes.When the XMLDocument gets deleted, all its Nodeswill also be deleted.@verbatimA 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.@verbatimDocument: empty (NULL is returned, not an empty string)Element: name of the elementComment: the comment textUnknown: the tag contentsText: 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 );/// Gets the line number the node is in, if the document was parsed from a file.int GetLineNum() const { return _parseLineNum; }/// 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 childelement with the specified name.*/const XMLElement* FirstChildElement( const char* name = 0 ) const;XMLElement* FirstChildElement( const char* name = 0 ) {return const_cast<XMLElement*>(const_cast<const XMLNode*>(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 childelement with the specified name.*/const XMLElement* LastChildElement( const char* name = 0 ) const;XMLElement* LastChildElement( const char* name = 0 ) {return const_cast<XMLElement*>(const_cast<const XMLNode*>(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<XMLElement*>(const_cast<const XMLNode*>(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<XMLElement*>(const_cast<const XMLNode*>(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 notbelong 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 notbelong 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 nodeis not a child of this node, or if the node does notbelong 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 bethe owner of the new Node. If the 'document' isnull, then the node returned will be allocatedfrom the current Document. (this->GetDocument())Note: if called on a XMLDocument, this will return null.*/virtual XMLNode* ShallowClone( XMLDocument* document ) const = 0;/**Make a copy of this node and all its children.If the 'target' is null, then the nodes willbe allocated in the current document. If 'target'is specified, the memory will be allocated is thespecified XMLDocument.NOTE: This is probably not the correct tool tocopy a document, since XMLDocuments can have multipletop level XMLNodes. You probably want to useXMLDocument::DeepCopy()*/XMLNode* DeepClone( XMLDocument* target ) const;/**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 theXML tree will be conditionally visited and the host will be called backvia the XMLVisitor interface.This is essentially a SAX interface for TinyXML-2. (Note however it doesn't re-parsethe XML for the callbacks, so the performance of TinyXML-2 is unchanged by using thisinterface versus any other.)The interface has been based on ideas from:- http://www.saxproject.org/- http://c2.com/cgi/wiki?HierarchicalVisitorPatternWhich are both good references for "visiting".An example of using Accept():@verbatimXMLPrinter printer;tinyxmlDoc.Accept( &printer );const char* xmlcstr = printer.CStr();@endverbatim*/virtual bool Accept( XMLVisitor* visitor ) const = 0;/**Set user data into the XMLNode. TinyXML-2 inno way processes or interprets user data.It is initially 0.*/void SetUserData(void* userData) { _userData = userData; }/**Get user data set into the XMLNode. TinyXML-2 inno way processes or interprets user data.It is initially 0.*/void* GetUserData() const { return _userData; }protected:explicit XMLNode( XMLDocument* );virtual ~XMLNode();virtual char* ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr);XMLDocument* _document;XMLNode* _parent;mutable StrPair _value;int _parseLineNum;XMLNode* _firstChild;XMLNode* _lastChild;XMLNode* _prev;XMLNode* _next;void* _userData;private:MemPool* _memPool;void Unlink( XMLNode* child );static void DeleteNode( XMLNode* node );void InsertChildPreamble( XMLNode* insertThis ) const;const XMLElement* ToElementWithName( const char* name ) const;XMLNode( const XMLNode& ); // not supportedXMLNode& operator=( const XMLNode& ); // not supported
};/** XML text.Note that a text node can have child element nodes, for example:@verbatim<root>This is <b>bold</b></root>@endverbatimA text node can have 2 ways to output the next. "normal" outputand CDATA. It will default to the mode it was parsed from the XML file andyou generally want to leave it alone, but you can change the output mode withSetCData() 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:explicit XMLText( XMLDocument* doc ) : XMLNode( doc ), _isCData( false ) {}virtual ~XMLText() {}char* ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr );private:bool _isCData;XMLText( const XMLText& ); // not supportedXMLText& 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:explicit XMLComment( XMLDocument* doc );virtual ~XMLComment();char* ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr);private:XMLComment( const XMLComment& ); // not supportedXMLComment& operator=( const XMLComment& ); // not supported
};/** In correct XML the declaration is the first entry in the file.@verbatim<?xml version="1.0" standalone="yes"?>@endverbatimTinyXML-2 will happily read or write files without a declaration,however.The text of the declaration isn't interpreted. It is parsedand 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:explicit XMLDeclaration( XMLDocument* doc );virtual ~XMLDeclaration();char* ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr );private:XMLDeclaration( const XMLDeclaration& ); // not supportedXMLDeclaration& operator=( const XMLDeclaration& ); // not supported
};/** Any tag that TinyXML-2 doesn't recognize is saved as anunknown. It is a tag of text, but should not be modified.It will be written back to the XML, unchanged, when the fileis 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:explicit XMLUnknown( XMLDocument* doc );virtual ~XMLUnknown();char* ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr );private:XMLUnknown( const XMLUnknown& ); // not supportedXMLUnknown& operator=( const XMLUnknown& ); // not supported
};/** An attribute is a name-value pair. Elements have an arbitrarynumber of attributes, each with a unique name.@note The attributes are not XMLNodes. You may only query theNext() 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;/// Gets the line number the attribute is in, if the document was parsed from a file.int GetLineNum() const { return _parseLineNum; }/// 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;}int64_t Int64Value() const {int64_t i = 0;QueryInt64Value(&i);return i;}uint64_t Unsigned64Value() const {uint64_t i = 0;QueryUnsigned64Value(&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 valuein the provided parameter. The function will return XML_SUCCESS on success,and XML_WRONG_ATTRIBUTE_TYPE if the conversion is not successful.*/XMLError QueryIntValue( int* value ) const;/// See QueryIntValueXMLError QueryUnsignedValue( unsigned int* value ) const;/// See QueryIntValueXMLError QueryInt64Value(int64_t* value) const;/// See QueryIntValueXMLError QueryUnsigned64Value(uint64_t* value) const;/// See QueryIntValueXMLError QueryBoolValue( bool* value ) const;/// See QueryIntValueXMLError QueryDoubleValue( double* value ) const;/// See QueryIntValueXMLError 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(int64_t value);/// Set the attribute to value.void SetAttribute(uint64_t 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() : _name(), _value(),_parseLineNum( 0 ), _next( 0 ), _memPool( 0 ) {}virtual ~XMLAttribute() {}XMLAttribute( const XMLAttribute& ); // not supportedvoid operator=( const XMLAttribute& ); // not supportedvoid SetName( const char* name );char* ParseDeep( char* p, bool processEntities, int* curLineNumPtr );mutable StrPair _name;mutable StrPair _value;int _parseLineNum;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 valuefor the attribute of that name, or null if noneexists. For example:@verbatimconst char* value = ele->Attribute( "foo" );@endverbatimThe '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:@verbatimif ( ele->Attribute( "foo", "bar" ) ) callFooIsBar();@endverbatimrather than:@verbatimif ( 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 valueof the attribute interpreted as an integer. The defaultvalue will be returned if the attribute isn't present,or if there is an error. (For a method with errorchecking, see QueryIntAttribute()).*/int IntAttribute(const char* name, int defaultValue = 0) const;/// See IntAttribute()unsigned UnsignedAttribute(const char* name, unsigned defaultValue = 0) const;/// See IntAttribute()int64_t Int64Attribute(const char* name, int64_t defaultValue = 0) const;/// See IntAttribute()uint64_t Unsigned64Attribute(const char* name, uint64_t defaultValue = 0) const;/// See IntAttribute()bool BoolAttribute(const char* name, bool defaultValue = false) const;/// See IntAttribute()double DoubleAttribute(const char* name, double defaultValue = 0) const;/// See IntAttribute()float FloatAttribute(const char* name, float defaultValue = 0) const;/** Given an attribute name, QueryIntAttribute() returnsXML_SUCCESS, XML_WRONG_ATTRIBUTE_TYPE if the conversioncan't be performed, or XML_NO_ATTRIBUTE if the attributedoesn't exist. If successful, the result of the conversionwill be written to 'value'. If not successful, nothing willbe written to 'value'. This allows you to provide defaultvalue:@verbatimint 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 QueryInt64Attribute(const char* name, int64_t* value) const {const XMLAttribute* a = FindAttribute(name);if (!a) {return XML_NO_ATTRIBUTE;}return a->QueryInt64Value(value);}/// See QueryIntAttribute()XMLError QueryUnsigned64Attribute(const char* name, uint64_t* value) const {const XMLAttribute* a = FindAttribute(name);if(!a) {return XML_NO_ATTRIBUTE;}return a->QueryUnsigned64Value(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 );}/// See QueryIntAttribute()XMLError QueryStringAttribute(const char* name, const char** value) const {const XMLAttribute* a = FindAttribute(name);if (!a) {return XML_NO_ATTRIBUTE;}*value = a->Value();return XML_SUCCESS;}/** Given an attribute name, QueryAttribute() returnsXML_SUCCESS, XML_WRONG_ATTRIBUTE_TYPE if the conversioncan't be performed, or XML_NO_ATTRIBUTE if the attributedoesn't exist. It is overloaded for the primitive types,and is a generally more convenient replacement ofQueryIntAttribute() and related functions.If successful, the result of the conversionwill be written to 'value'. If not successful, nothing willbe written to 'value'. This allows you to provide defaultvalue:@verbatimint value = 10;QueryAttribute( "foo", &value ); // if "foo" isn't found, value will still be 10@endverbatim*/XMLError QueryAttribute( const char* name, int* value ) const {return QueryIntAttribute( name, value );}XMLError QueryAttribute( const char* name, unsigned int* value ) const {return QueryUnsignedAttribute( name, value );}XMLError QueryAttribute(const char* name, int64_t* value) const {return QueryInt64Attribute(name, value);}XMLError QueryAttribute(const char* name, uint64_t* value) const {return QueryUnsigned64Attribute(name, value);}XMLError QueryAttribute( const char* name, bool* value ) const {return QueryBoolAttribute( name, value );}XMLError QueryAttribute( const char* name, double* value ) const {return QueryDoubleAttribute( name, value );}XMLError 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, int64_t value) {XMLAttribute* a = FindOrCreateAttribute(name);a->SetAttribute(value);}/// Sets the named attribute to value.void SetAttribute(const char* name, uint64_t 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 easyand concise, GetText() is limited compared to getting the XMLText childand 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<foo>This is text</foo>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 fromthis XML:@verbatim<foo><b>This is text</b></foo>@endverbatimthen the value of str would be null. The first child node isn't a text node, it isanother element. From this XML:@verbatim<foo>This is <b>text</b></foo>@endverbatimGetText() will return "This is ".*/const char* GetText() const;/** Convenience function for easy access to the text inside an element. Although easyand concise, SetText() is limited compared to creating an XMLText childand mutating it directly.If the first child of 'this' is a XMLText, SetText() sets its value tothe 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<foo>This is text</foo>fooElement->SetText( "Hullaballoo!" );<foo>Hullaballoo!</foo>@endverbatimNote that this function can be misleading. If the element foo was created fromthis XML:@verbatim<foo><b>This is text</b></foo>@endverbatimthen it will not change "This is text", but rather prefix it with a text element:@verbatim<foo>Hullaballoo!<b>This is text</b></foo>@endverbatimFor this XML:@verbatim<foo />@endverbatimSetText() will generate@verbatim<foo>Hullaballoo!</foo>@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(int64_t value);/// Convenience method for setting text inside an element. See SetText() for important limitations.void SetText(uint64_t 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 bestshown by example. Given you have a document is this form:@verbatim<point><x>1</x><y>1.4</y></point>@endverbatimThe QueryIntText() and similar functions provide a safe and easier way to get to the"value" of x and y.@verbatimint x = 0;float y = 0; // types of x and y are contrived for exampleconst 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 convertedto 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 QueryInt64Text(int64_t* uval) const;/// See QueryIntText()XMLError QueryUnsigned64Text(uint64_t* uval) const;/// See QueryIntText()XMLError QueryBoolText( bool* bval ) const;/// See QueryIntText()XMLError QueryDoubleText( double* dval ) const;/// See QueryIntText()XMLError QueryFloatText( float* fval ) const;int IntText(int defaultValue = 0) const;/// See QueryIntText()unsigned UnsignedText(unsigned defaultValue = 0) const;/// See QueryIntText()int64_t Int64Text(int64_t defaultValue = 0) const;/// See QueryIntText()uint64_t Unsigned64Text(uint64_t defaultValue = 0) const;/// See QueryIntText()bool BoolText(bool defaultValue = false) const;/// See QueryIntText()double DoubleText(double defaultValue = 0) const;/// See QueryIntText()float FloatText(float defaultValue = 0) const;/**Convenience method to create a new XMLElement and add it as last (right)child of this node. Returns the created and inserted element.*/XMLElement* InsertNewChildElement(const char* name);/// See InsertNewChildElement()XMLComment* InsertNewComment(const char* comment);/// See InsertNewChildElement()XMLText* InsertNewText(const char* text);/// See InsertNewChildElement()XMLDeclaration* InsertNewDeclaration(const char* text);/// See InsertNewChildElement()XMLUnknown* InsertNewUnknown(const char* text);// internal:enum ElementClosingType {OPEN, // <foo>CLOSED, // <foo/>CLOSING // </foo>};ElementClosingType ClosingType() const {return _closingType;}virtual XMLNode* ShallowClone( XMLDocument* document ) const;virtual bool ShallowEqual( const XMLNode* compare ) const;protected:char* ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr );private:XMLElement( XMLDocument* doc );virtual ~XMLElement();XMLElement( const XMLElement& ); // not supportedvoid operator=( const XMLElement& ); // not supportedXMLAttribute* FindOrCreateAttribute( const char* name );char* ParseAttributes( char* p, int* curLineNumPtr );static void DeleteAttribute( XMLAttribute* attribute );XMLAttribute* CreateAttribute();enum { BUF_SIZE = 200 };ElementClosingType _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;// Gives access to SetError and Push/PopDepth, but over-access for everything else.// Wishing C++ had "internal" scope.friend class XMLNode;friend class XMLText;friend class XMLComment;friend class XMLDeclaration;friend class XMLUnknown;
public:/// constructorXMLDocument( bool processEntities = true, Whitespace whitespaceMode = 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_SUCCESS (0) on success, oran errorID.You may optionally pass in the 'nBytes', which isthe number of bytes which will be parsed. If notspecified, TinyXML-2 will assume 'xml' points to anull terminated string.*/XMLError Parse( const char* xml, size_t nBytes=static_cast<size_t>(-1) );/**Load an XML file from disk.Returns XML_SUCCESS (0) on success, oran errorID.*/XMLError LoadFile( const char* filename );/**Load an XML file from disk. You are responsiblefor providing and closing the FILE*.NOTE: The file should be opened as binary ("rb")not text in order for TinyXML-2 to correctlydo newline normalization.Returns XML_SUCCESS (0) on success, oran errorID.*/XMLError LoadFile( FILE* );/**Save the XML file to disk.Returns XML_SUCCESS (0) on success, oran errorID.*/XMLError SaveFile( const char* filename, bool compact = false );/**Save the XML file to disk. You are responsiblefor providing and closing the FILE*.Returns XML_SUCCESS (0) on success, oran errorID.*/XMLError SaveFile( FILE* fp, bool compact = false );bool ProcessEntities() const {return _processEntities;}Whitespace WhitespaceMode() const {return _whitespaceMode;}/**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 willprint to stdout. If you provide Printer, this can print to a file:@verbatimXMLPrinter printer( fp );doc.Print( &printer );@endverbatimOr you can use a printer to print to memory:@verbatimXMLPrinter 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 withthis Document. The memory for the Elementis managed by the Document.*/XMLElement* NewElement( const char* name );/**Create a new Comment associated withthis Document. The memory for the Commentis managed by the Document.*/XMLComment* NewComment( const char* comment );/**Create a new Text associated withthis Document. The memory for the Textis managed by the Document.*/XMLText* NewText( const char* text );/**Create a new Declaration associated withthis Document. The memory for the objectis managed by the Document.If the 'text' param is null, the standarddeclaration is used.:@verbatim<?xml version="1.0" encoding="UTF-8"?>@endverbatim*/XMLDeclaration* NewDeclaration( const char* text=0 );/**Create a new Unknown associated withthis Document. The memory for the objectis 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 ClearError() {SetError(XML_SUCCESS, 0, 0);}/// 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;static const char* ErrorIDToName(XMLError errorID);/** Returns a "long form" error description. A hopefully helpfuldiagnostic with location, line number, and/or additional info.*/const char* ErrorStr() const;/// A (trivial) utility function that prints the ErrorStr() to stdout.void PrintError() const;/// Return the line where the error occurred, or zero if unknown.int ErrorLineNum() const{return _errorLineNum;}/// Clear the document, resetting it to the initial state.void Clear();/**Copies this document to a target document.The target will be completely cleared before the copy.If you want to copy a sub-tree, see XMLNode::DeepClone().NOTE: that the 'target' must be non-null.*/void DeepCopy(XMLDocument* target) const;// internalchar* Identify( char* p, XMLNode** node );// internalvoid MarkInUse(const XMLNode* const);virtual XMLNode* ShallowClone( XMLDocument* /*document*/ ) const {return 0;}virtual bool ShallowEqual( const XMLNode* /*compare*/ ) const {return false;}private:XMLDocument( const XMLDocument& ); // not supportedvoid operator=( const XMLDocument& ); // not supportedbool _writeBOM;bool _processEntities;XMLError _errorID;Whitespace _whitespaceMode;mutable StrPair _errorStr;int _errorLineNum;char* _charBuffer;int _parseCurLineNum;int _parsingDepth;// Memory tracking does add some overhead.// However, the code assumes that you don't// have a bunch of unlinked nodes around.// Therefore it takes less memory to track// in the document vs. a linked list in the XMLNode,// and the performance is the same.DynArray<XMLNode*, 10> _unlinked;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();void SetError( XMLError error, int lineNum, const char* format, ... );// Something of an obvious security hole, once it was discovered.// Either an ill-formed XML or an excessively deep one can overflow// the stack. Track stack depth, and error out if needed.class DepthTracker {public:explicit DepthTracker(XMLDocument * document) {this->_document = document;document->PushDepth();}~DepthTracker() {_document->PopDepth();}private:XMLDocument * _document;};void PushDepth();void PopDepth();template<class NodeType, int PoolElementSize>NodeType* CreateUnlinkedNode( MemPoolT<PoolElementSize>& pool );
};template<class NodeType, int PoolElementSize>
inline NodeType* XMLDocument::CreateUnlinkedNode( MemPoolT<PoolElementSize>& pool )
{TIXMLASSERT( sizeof( NodeType ) == PoolElementSize );TIXMLASSERT( sizeof( NodeType ) == pool.ItemSize() );NodeType* returnNode = new (pool.Alloc()) NodeType( this );TIXMLASSERT( returnNode );returnNode->_memPool = &pool;_unlinked.Push(returnNode);return returnNode;
}/**A XMLHandle is a class that wraps a node pointer with null checks; this isan incredibly useful thing. Note that XMLHandle is not part of the TinyXML-2DOM structure. It is a separate utility class.Take an example:@verbatim<Document><Element attributeA = "valueA"><Child attributeB = "value1" /><Child attributeB = "value2" /></Element></Document>@endverbatimAssuming you want the value of "attributeB" in the 2nd "Child" element, it's veryeasy to write a *lot* of code that looks like:@verbatimXMLElement* 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.@endverbatimAnd that doesn't even cover "else" cases. XMLHandle addresses the verbosityof such code. A XMLHandle checks for null pointers so it is perfectly safeand correct to use:@verbatimXMLHandle docHandle( &document );XMLElement* child2 = docHandle.FirstChildElement( "Document" ).FirstChildElement( "Element" ).FirstChildElement().NextSiblingElement();if ( child2 ){// do something useful@endverbatimWhich is MUCH more concise and useful.It is also safe to copy handles - internally they are nothing more than node pointers.@verbatimXMLHandle handleCopy = handle;@endverbatimSee 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.explicit XMLHandle( XMLNode* node ) : _node( node ) {}/// Create a handle from a node.explicit XMLHandle( XMLNode& node ) : _node( &node ) {}/// Copy constructorXMLHandle( const XMLHandle& ref ) : _node( ref._node ) {}/// AssignmentXMLHandle& 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 ? _node->ToElement() : 0 );}/// Safe cast to XMLText. This can return null.XMLText* ToText() {return ( _node ? _node->ToText() : 0 );}/// Safe cast to XMLUnknown. This can return null.XMLUnknown* ToUnknown() {return ( _node ? _node->ToUnknown() : 0 );}/// Safe cast to XMLDeclaration. This can return null.XMLDeclaration* ToDeclaration() {return ( _node ? _node->ToDeclaration() : 0 );}private:XMLNode* _node;
};/**A variant of the XMLHandle class for working with const XMLNodes and Documents. It is thesame in all regards, except for the 'const' qualifiers. See XMLHandle for API.
*/
class TINYXML2_LIB XMLConstHandle
{public:explicit XMLConstHandle( const XMLNode* node ) : _node( node ) {}explicit 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 ? _node->ToElement() : 0 );}const XMLText* ToText() const {return ( _node ? _node->ToText() : 0 );}const XMLUnknown* ToUnknown() const {return ( _node ? _node->ToUnknown() : 0 );}const XMLDeclaration* ToDeclaration() const {return ( _node ? _node->ToDeclaration() : 0 );}private:const XMLNode* _node;
};/**Printing functionality. The XMLPrinter gives you moreoptions than the XMLDocument::Print() method.It can:-# Print to memory.-# Print to a file you provide.-# Print XML without a XMLDocument.Print to Memory@verbatimXMLPrinter printer;doc.Print( &printer );SomeFunction( printer.CStr() );@endverbatimPrint to a FileYou provide the file pointer.@verbatimXMLPrinter printer( fp );doc.Print( &printer );@endverbatimPrint without a XMLDocumentWhen loading, an XML parser is very useful. However, sometimeswhen saving, it just gets in the way. The code is often set upfor streaming, and constructing the DOM is just overhead.The Printer supports the streaming case. The following codeprints out a trivially simple XML file without ever creatingan XML document.@verbatimXMLPrinter 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 printto memory, and the result is available in CStr().If 'compact' is set to true, then output is createdwith 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, int64_t value );void PushAttribute( const char* name, uint64_t 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 signed 64bit integer.void PushText( int64_t value );/// Add a text node from an unsigned 64bit integer.void PushText( uint64_t 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 commentvoid 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 tothe XML file in memory.*/const char* CStr() const {return _buffer.Mem();}/**If in print to memory mode, return the sizeof the XML file in memory. (Note the size returnedincludes the terminating null.)*/int CStrSize() const {return _buffer.Size();}/**If in print to memory mode, reset the buffer to thebeginning.*/void ClearBuffer( bool resetToFirstElement = true ) {_buffer.Clear();_buffer.Push(0);_firstElement = resetToFirstElement;}protected:virtual bool CompactMode( const XMLElement& ) { return _compactMode; }/** Prints out the space before an element. You may override to changethe space and tabs used. A PrintSpace() override should call Print().*/virtual void PrintSpace( int depth );void Print( const char* format, ... );void Write( const char* data, size_t size );inline void Write( const char* data ) { Write( data, strlen( data ) ); }void Putc( char ch );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;// Prohibit cloning, intentionally not implementedXMLPrinter( const XMLPrinter& );XMLPrinter& operator=( const XMLPrinter& );
};} // tinyxml2#if defined(_MSC_VER)
# pragma warning(pop)
#endif#endif // TINYXML2_INCLUDEDtinyxml2.cpp
大家可以去这个网站下载，我是在这个网站里面的github中找到的；
http://www.grinninglizard.com/tinyxml2/index.html
/*
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 <new> // yes, this one new style header, is in the Android SDK.
#if defined(ANDROID_NDK) || defined(__BORLANDC__) || defined(__QNXNTO__)
# include <stddef.h>
# include <stdarg.h>
#else
# include <cstddef>
# include <cstdarg>
#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 );const 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 ){const 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 vsnprintfstatic 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#if defined(_WIN64)#define TIXML_FSEEK _fseeki64#define TIXML_FTELL _ftelli64
#elif defined(__APPLE__)#define TIXML_FSEEK fseeko#define TIXML_FTELL ftello
#elif defined(__x86_64__)#define TIXML_FSEEK fseeko64#define TIXML_FTELL ftello64
#else#define TIXML_FSEEK fseek#define TIXML_FTELL ftell
#endifstatic const char LINE_FEED = static_cast<char>(0x0a); // all line endings are normalized to LF
static const char LF = LINE_FEED;
static const char CARRIAGE_RETURN = static_cast<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-8static 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 != 0 );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, int* curLineNumPtr )
{TIXMLASSERT( p );TIXMLASSERT( endTag && *endTag );TIXMLASSERT(curLineNumPtr);char* start = p;const 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;} else if (*p == '\n') {++(*curLineNumPtr);}++p;TIXMLASSERT( 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, 0 );if ( *_start ) {const char* p = _start; // the read pointerchar* q = _start; // the write pointerwhile( *p ) {if ( XMLUtil::IsWhiteSpace( *p )) {p = XMLUtil::SkipWhiteSpace( p, 0 );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 ) {const char* p = _start; // the read pointerchar* q = _start; // the write pointerwhile( p < _end ) {if ( (_flags & NEEDS_NEWLINE_NORMALIZATION) && *p == CR ) {// CR-LF pair becomes LF// CR alone becomes LF// LF-CR becomes LFif ( *(p+1) == LF ) {p += 2;}else {++p;}*q = LF;++q;}else if ( (_flags & NEEDS_NEWLINE_NORMALIZATION) && *p == LF ) {if ( *(p+1) == CR ) {p += 2;}else {++p;}*q = LF;++q;}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;const char* adjusted = const_cast<char*>( 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::writeBoolTrue = "true";
const char* XMLUtil::writeBoolFalse = "false";void XMLUtil::SetBoolSerialization(const char* writeTrue, const char* writeFalse)
{static const char* defTrue = "true";static const char* defFalse = "false";writeBoolTrue = (writeTrue) ? writeTrue : defTrue;writeBoolFalse = (writeFalse) ? writeFalse : defFalse;
}const char* XMLUtil::ReadBOM( const char* p, bool* bom )
{TIXMLASSERT( p );TIXMLASSERT( bom );*bom = false;const unsigned char* pu = reinterpret_cast<const unsigned char*>(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 are annotated with carefully designed comments// to suppress compiler warnings such as -Wimplicit-fallthrough in gccswitch (*length) {case 4:--output;*output = static_cast<char>((input | BYTE_MARK) & BYTE_MASK);input >>= 6;//fall throughcase 3:--output;*output = static_cast<char>((input | BYTE_MARK) & BYTE_MASK);input >>= 6;//fall throughcase 2:--output;*output = static_cast<char>((input | BYTE_MARK) & BYTE_MASK);input >>= 6;//fall throughcase 1:--output;*output = static_cast<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-8ConvertUTF32ToUTF8( 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, "%s", v ? writeBoolTrue : writeBoolFalse);
}/*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 );
}void XMLUtil::ToStr( int64_t v, char* buffer, int bufferSize )
{// horrible syntax trick to make the compiler happy about %lldTIXML_SNPRINTF(buffer, bufferSize, "%lld", static_cast<long long>(v));
}void XMLUtil::ToStr( uint64_t v, char* buffer, int bufferSize )
{// horrible syntax trick to make the compiler happy about %lluTIXML_SNPRINTF(buffer, bufferSize, "%llu", (long long)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;}static const char* TRUE_VALS[] = { "true", "True", "TRUE", 0 };static const char* FALSE_VALS[] = { "false", "False", "FALSE", 0 };for (int i = 0; TRUE_VALS[i]; ++i) {if (StringEqual(str, TRUE_VALS[i])) {*value = true;return true;}}for (int i = 0; FALSE_VALS[i]; ++i) {if (StringEqual(str, FALSE_VALS[i])) {*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;
}bool XMLUtil::ToInt64(const char* str, int64_t* value)
{long long v = 0; // horrible syntax trick to make the compiler happy about %lldif (TIXML_SSCANF(str, "%lld", &v) == 1) {*value = static_cast<int64_t>(v);return true;}return false;
}bool XMLUtil::ToUnsigned64(const char* str, uint64_t* value) {unsigned long long v = 0; // horrible syntax trick to make the compiler happy about %lluif(TIXML_SSCANF(str, "%llu", &v) == 1) {*value = (uint64_t)v;return true;}return false;
}char* XMLDocument::Identify( char* p, XMLNode** node )
{TIXMLASSERT( node );TIXMLASSERT( p );char* const start = p;int const startLine = _parseCurLineNum;p = XMLUtil::SkipWhiteSpace( p, &_parseCurLineNum );if( !*p ) {*node = 0;TIXMLASSERT( p );return p;}// These strings define the matching patterns:static const char* xmlHeader = { "<?" };static const char* commentHeader = { "<!--" };static const char* cdataHeader = { "<![CDATA[" };static const char* dtdHeader = { "<!" };static const char* elementHeader = { "<" }; // and a header for everything else; check last.static const int xmlHeaderLen = 2;static const int commentHeaderLen = 4;static const int cdataHeaderLen = 9;static const int dtdHeaderLen = 2;static const int elementHeaderLen = 1;TIXMLASSERT( sizeof( XMLComment ) == sizeof( XMLUnknown ) ); // use same memory poolTIXMLASSERT( sizeof( XMLComment ) == sizeof( XMLDeclaration ) ); // use same memory poolXMLNode* returnNode = 0;if ( XMLUtil::StringEqual( p, xmlHeader, xmlHeaderLen ) ) {returnNode = CreateUnlinkedNode<XMLDeclaration>( _commentPool );returnNode->_parseLineNum = _parseCurLineNum;p += xmlHeaderLen;}else if ( XMLUtil::StringEqual( p, commentHeader, commentHeaderLen ) ) {returnNode = CreateUnlinkedNode<XMLComment>( _commentPool );returnNode->_parseLineNum = _parseCurLineNum;p += commentHeaderLen;}else if ( XMLUtil::StringEqual( p, cdataHeader, cdataHeaderLen ) ) {XMLText* text = CreateUnlinkedNode<XMLText>( _textPool );returnNode = text;returnNode->_parseLineNum = _parseCurLineNum;p += cdataHeaderLen;text->SetCData( true );}else if ( XMLUtil::StringEqual( p, dtdHeader, dtdHeaderLen ) ) {returnNode = CreateUnlinkedNode<XMLUnknown>( _commentPool );returnNode->_parseLineNum = _parseCurLineNum;p += dtdHeaderLen;}else if ( XMLUtil::StringEqual( p, elementHeader, elementHeaderLen ) ) {returnNode = CreateUnlinkedNode<XMLElement>( _elementPool );returnNode->_parseLineNum = _parseCurLineNum;p += elementHeaderLen;}else {returnNode = CreateUnlinkedNode<XMLText>( _textPool );returnNode->_parseLineNum = _parseCurLineNum; // Report line of first non-whitespace characterp = start; // Back it up, all the text counts._parseCurLineNum = startLine;}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 ),_value(),_parseLineNum( 0 ),_firstChild( 0 ), _lastChild( 0 ),_prev( 0 ), _next( 0 ),_userData( 0 ),_memPool( 0 )
{}XMLNode::~XMLNode()
{DeleteChildren();if ( _parent ) {_parent->Unlink( this );}
}const char* XMLNode::Value() const
{// Edge case: XMLDocuments don't have a Value. Return null.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 );}
}XMLNode* XMLNode::DeepClone(XMLDocument* target) const
{XMLNode* clone = this->ShallowClone(target);if (!clone) return 0;for (const XMLNode* child = this->FirstChild(); child; child = child->NextSibling()) {XMLNode* childClone = child->DeepClone(target);TIXMLASSERT(childClone);clone->InsertEndChild(childClone);}return clone;
}void XMLNode::DeleteChildren()
{while( _firstChild ) {TIXMLASSERT( _lastChild );DeleteChild( _firstChild );}_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->_next = 0;child->_prev = 0;child->_parent = 0;
}void XMLNode::DeleteChild( XMLNode* node )
{TIXMLASSERT( node );TIXMLASSERT( node->_document == _document );TIXMLASSERT( node->_parent == this );Unlink( node );TIXMLASSERT(node->_prev == 0);TIXMLASSERT(node->_next == 0);TIXMLASSERT(node->_parent == 0);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 == addThis ) {// Current state: BeforeThis -> AddThis -> OneAfterAddThis// Now AddThis must disappear from it's location and then// reappear between BeforeThis and OneAfterAddThis.// So just leave it where it is.return addThis;}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->ToElementWithName( name );if ( element ) {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->ToElementWithName( name );if ( element ) {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->ToElementWithName( name );if ( element ) {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->ToElementWithName( name );if ( element ) {return element;}}return 0;
}char* XMLNode::ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr )
{// This is a recursive method, but thinking about it "at the current level"// it is a pretty simple flat list:// <foo/>// <!-- comment -->//// With a special case:// <foo>// </foo>// <!-- comment -->//// 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.XMLDocument::DepthTracker tracker(_document);if (_document->Error())return 0;while( p && *p ) {XMLNode* node = 0;p = _document->Identify( p, &node );TIXMLASSERT( p );if ( node == 0 ) {break;}const int initialLineNum = node->_parseLineNum;StrPair endTag;p = node->ParseDeep( p, &endTag, curLineNumPtr );if ( !p ) {DeleteNode( node );if ( !_document->Error() ) {_document->SetError( XML_ERROR_PARSING, initialLineNum, 0);}break;}const XMLDeclaration* const decl = node->ToDeclaration();if ( decl ) {// Declarations are only allowed at document level//// Multiple declarations are allowed but all declarations// must occur before anything else. //// Optimized due to a security test case. If the first node is // a declaration, and the last node is a declaration, then only // declarations have so far been added.bool wellLocated = false;if (ToDocument()) {if (FirstChild()) {wellLocated =FirstChild() &&FirstChild()->ToDeclaration() &&LastChild() &&LastChild()->ToDeclaration();}else {wellLocated = true;}}if ( !wellLocated ) {_document->SetError( XML_ERROR_PARSING_DECLARATION, initialLineNum, "XMLDeclaration value=%s", decl->Value());DeleteNode( node );break;}}XMLElement* ele = node->ToElement();if ( ele ) {// We read the end tag. Return it to the parent.if ( ele->ClosingType() == XMLElement::CLOSING ) {if ( parentEndTag ) {ele->_value.TransferTo( parentEndTag );}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, initialLineNum, "XMLElement name=%s", ele->Name());DeleteNode( node );break;}}InsertEndChild( node );}return 0;
}/*static*/ void XMLNode::DeleteNode( XMLNode* node )
{if ( node == 0 ) {return;}TIXMLASSERT(node->_document);if (!node->ToDocument()) {node->_document->MarkInUse(node);}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->_document->MarkInUse(insertThis);insertThis->_memPool->SetTracked();}
}const XMLElement* XMLNode::ToElementWithName( const char* name ) const
{const XMLElement* element = this->ToElement();if ( element == 0 ) {return 0;}if ( name == 0 ) {return element;}if ( XMLUtil::StringEqual( element->Name(), name ) ) {return element;}return 0;
}// --------- XMLText ---------- //
char* XMLText::ParseDeep( char* p, StrPair*, int* curLineNumPtr )
{if ( this->CData() ) {p = _value.ParseText( p, "]]>", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr );if ( !p ) {_document->SetError( XML_ERROR_PARSING_CDATA, _parseLineNum, 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, curLineNumPtr );if ( p && *p ) {return p-1;}if ( !p ) {_document->SetError( XML_ERROR_PARSING_TEXT, _parseLineNum, 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
{TIXMLASSERT( compare );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*, int* curLineNumPtr )
{// Comment parses as text.p = _value.ParseText( p, "-->", StrPair::COMMENT, curLineNumPtr );if ( p == 0 ) {_document->SetError( XML_ERROR_PARSING_COMMENT, _parseLineNum, 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*, int* curLineNumPtr )
{// Declaration parses as text.p = _value.ParseText( p, "?>", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr );if ( p == 0 ) {_document->SetError( XML_ERROR_PARSING_DECLARATION, _parseLineNum, 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*, int* curLineNumPtr )
{// Unknown parses as text.p = _value.ParseText( p, ">", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr );if ( !p ) {_document->SetError( XML_ERROR_PARSING_UNKNOWN, _parseLineNum, 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, int* curLineNumPtr )
{// Parse using the name rules: bug fix, was using ParseText beforep = _name.ParseName( p );if ( !p || !*p ) {return 0;}// Skip white space before =p = XMLUtil::SkipWhiteSpace( p, curLineNumPtr );if ( *p != '=' ) {return 0;}++p; // move up to opening quotep = XMLUtil::SkipWhiteSpace( p, curLineNumPtr );if ( *p != '\"' && *p != '\'' ) {return 0;}const char endTag[2] = { *p, 0 };++p; // move past opening quotep = _value.ParseText( p, endTag, processEntities ? StrPair::ATTRIBUTE_VALUE : StrPair::ATTRIBUTE_VALUE_LEAVE_ENTITIES, curLineNumPtr );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::QueryInt64Value(int64_t* value) const
{if (XMLUtil::ToInt64(Value(), value)) {return XML_SUCCESS;}return XML_WRONG_ATTRIBUTE_TYPE;
}XMLError XMLAttribute::QueryUnsigned64Value(uint64_t* value) const
{if(XMLUtil::ToUnsigned64(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(int64_t v)
{char buf[BUF_SIZE];XMLUtil::ToStr(v, buf, BUF_SIZE);_value.SetStr(buf);
}void XMLAttribute::SetAttribute(uint64_t 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( OPEN ),_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;
}int XMLElement::IntAttribute(const char* name, int defaultValue) const
{int i = defaultValue;QueryIntAttribute(name, &i);return i;
}unsigned XMLElement::UnsignedAttribute(const char* name, unsigned defaultValue) const
{unsigned i = defaultValue;QueryUnsignedAttribute(name, &i);return i;
}int64_t XMLElement::Int64Attribute(const char* name, int64_t defaultValue) const
{int64_t i = defaultValue;QueryInt64Attribute(name, &i);return i;
}uint64_t XMLElement::Unsigned64Attribute(const char* name, uint64_t defaultValue) const
{uint64_t i = defaultValue;QueryUnsigned64Attribute(name, &i);return i;
}bool XMLElement::BoolAttribute(const char* name, bool defaultValue) const
{bool b = defaultValue;QueryBoolAttribute(name, &b);return b;
}double XMLElement::DoubleAttribute(const char* name, double defaultValue) const
{double d = defaultValue;QueryDoubleAttribute(name, &d);return d;
}float XMLElement::FloatAttribute(const char* name, float defaultValue) const
{float f = defaultValue;QueryFloatAttribute(name, &f);return f;
}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(int64_t v)
{char buf[BUF_SIZE];XMLUtil::ToStr(v, buf, BUF_SIZE);SetText(buf);
}void XMLElement::SetText(uint64_t 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::QueryInt64Text(int64_t* ival) const
{if (FirstChild() && FirstChild()->ToText()) {const char* t = FirstChild()->Value();if (XMLUtil::ToInt64(t, ival)) {return XML_SUCCESS;}return XML_CAN_NOT_CONVERT_TEXT;}return XML_NO_TEXT_NODE;
}XMLError XMLElement::QueryUnsigned64Text(uint64_t* ival) const
{if(FirstChild() && FirstChild()->ToText()) {const char* t = FirstChild()->Value();if(XMLUtil::ToUnsigned64(t, ival)) {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;
}int XMLElement::IntText(int defaultValue) const
{int i = defaultValue;QueryIntText(&i);return i;
}unsigned XMLElement::UnsignedText(unsigned defaultValue) const
{unsigned i = defaultValue;QueryUnsignedText(&i);return i;
}int64_t XMLElement::Int64Text(int64_t defaultValue) const
{int64_t i = defaultValue;QueryInt64Text(&i);return i;
}uint64_t XMLElement::Unsigned64Text(uint64_t defaultValue) const
{uint64_t i = defaultValue;QueryUnsigned64Text(&i);return i;
}bool XMLElement::BoolText(bool defaultValue) const
{bool b = defaultValue;QueryBoolText(&b);return b;
}double XMLElement::DoubleText(double defaultValue) const
{double d = defaultValue;QueryDoubleText(&d);return d;
}float XMLElement::FloatText(float defaultValue) const
{float f = defaultValue;QueryFloatText(&f);return f;
}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 ) {attrib = CreateAttribute();TIXMLASSERT( attrib );if ( last ) {TIXMLASSERT( last->_next == 0 );last->_next = attrib;}else {TIXMLASSERT( _rootAttribute == 0 );_rootAttribute = attrib;}attrib->SetName( name );}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, int* curLineNumPtr )
{XMLAttribute* prevAttribute = 0;// Read the attributes.while( p ) {p = XMLUtil::SkipWhiteSpace( p, curLineNumPtr );if ( !(*p) ) {_document->SetError( XML_ERROR_PARSING_ELEMENT, _parseLineNum, "XMLElement name=%s", Name() );return 0;}// attribute.if (XMLUtil::IsNameStartChar( *p ) ) {XMLAttribute* attrib = CreateAttribute();TIXMLASSERT( attrib );attrib->_parseLineNum = _document->_parseCurLineNum;const int attrLineNum = attrib->_parseLineNum;p = attrib->ParseDeep( p, _document->ProcessEntities(), curLineNumPtr );if ( !p || Attribute( attrib->Name() ) ) {DeleteAttribute( attrib );_document->SetError( XML_ERROR_PARSING_ATTRIBUTE, attrLineNum, "XMLElement name=%s", Name() );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 ) {TIXMLASSERT( prevAttribute->_next == 0 );prevAttribute->_next = attrib;}else {TIXMLASSERT( _rootAttribute == 0 );_rootAttribute = attrib;}prevAttribute = attrib;}// end of the tagelse if ( *p == '>' ) {++p;break;}// end of the tagelse if ( *p == '/' && *(p+1) == '>' ) {_closingType = CLOSED;return p+2; // done; sealed element.}else {_document->SetError( XML_ERROR_PARSING_ELEMENT, _parseLineNum, 0 );return 0;}}return p;
}void XMLElement::DeleteAttribute( XMLAttribute* attribute )
{if ( attribute == 0 ) {return;}MemPool* pool = attribute->_memPool;attribute->~XMLAttribute();pool->Free( attribute );
}XMLAttribute* XMLElement::CreateAttribute()
{TIXMLASSERT( sizeof( XMLAttribute ) == _document->_attributePool.ItemSize() );XMLAttribute* attrib = new (_document->_attributePool.Alloc() ) XMLAttribute();TIXMLASSERT( attrib );attrib->_memPool = &_document->_attributePool;attrib->_memPool->SetTracked();return attrib;
}XMLElement* XMLElement::InsertNewChildElement(const char* name)
{XMLElement* node = _document->NewElement(name);return InsertEndChild(node) ? node : 0;
}XMLComment* XMLElement::InsertNewComment(const char* comment)
{XMLComment* node = _document->NewComment(comment);return InsertEndChild(node) ? node : 0;
}XMLText* XMLElement::InsertNewText(const char* text)
{XMLText* node = _document->NewText(text);return InsertEndChild(node) ? node : 0;
}XMLDeclaration* XMLElement::InsertNewDeclaration(const char* text)
{XMLDeclaration* node = _document->NewDeclaration(text);return InsertEndChild(node) ? node : 0;
}XMLUnknown* XMLElement::InsertNewUnknown(const char* text)
{XMLUnknown* node = _document->NewUnknown(text);return InsertEndChild(node) ? node : 0;
}//
// <ele></ele>
// <ele>foo<b>bar</b></ele>
//
char* XMLElement::ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr )
{// Read the element name.p = XMLUtil::SkipWhiteSpace( p, curLineNumPtr );// The closing element is the </element> 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, curLineNumPtr );if ( !p || !*p || _closingType != OPEN ) {return p;}p = XMLNode::ParseDeep( p, parentEndTag, curLineNumPtr );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 countreturn 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_PARSING_ELEMENT","XML_ERROR_PARSING_ATTRIBUTE","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_ELEMENT_DEPTH_EXCEEDED"
};XMLDocument::XMLDocument( bool processEntities, Whitespace whitespaceMode ) :XMLNode( 0 ),_writeBOM( false ),_processEntities( processEntities ),_errorID(XML_SUCCESS),_whitespaceMode( whitespaceMode ),_errorStr(),_errorLineNum( 0 ),_charBuffer( 0 ),_parseCurLineNum( 0 ),_parsingDepth(0),_unlinked(),_elementPool(),_attributePool(),_textPool(),_commentPool()
{// avoid VC++ C4355 warning about 'this' in initializer list (C4355 is off by default in VS2012+)_document = this;
}XMLDocument::~XMLDocument()
{Clear();
}void XMLDocument::MarkInUse(const XMLNode* const node)
{TIXMLASSERT(node);TIXMLASSERT(node->_parent == 0);for (int i = 0; i < _unlinked.Size(); ++i) {if (node == _unlinked[i]) {_unlinked.SwapRemove(i);break;}}
}void XMLDocument::Clear()
{DeleteChildren();while( _unlinked.Size()) {DeleteNode(_unlinked[0]); // Will remove from _unlinked as part of delete.}#ifdef TINYXML2_DEBUGconst bool hadError = Error();
#endifClearError();delete [] _charBuffer;_charBuffer = 0;_parsingDepth = 0;#if 0_textPool.Trace( "text" );_elementPool.Trace( "element" );_commentPool.Trace( "comment" );_attributePool.Trace( "attribute" );
#endif#ifdef TINYXML2_DEBUGif ( !hadError ) {TIXMLASSERT( _elementPool.CurrentAllocs() == _elementPool.Untracked() );TIXMLASSERT( _attributePool.CurrentAllocs() == _attributePool.Untracked() );TIXMLASSERT( _textPool.CurrentAllocs() == _textPool.Untracked() );TIXMLASSERT( _commentPool.CurrentAllocs() == _commentPool.Untracked() );}
#endif
}void XMLDocument::DeepCopy(XMLDocument* target) const
{TIXMLASSERT(target);if (target == this) {return; // technically success - a no-op.}target->Clear();for (const XMLNode* node = this->FirstChild(); node; node = node->NextSibling()) {target->InsertEndChild(node->DeepClone(target));}
}XMLElement* XMLDocument::NewElement( const char* name )
{XMLElement* ele = CreateUnlinkedNode<XMLElement>( _elementPool );ele->SetName( name );return ele;
}XMLComment* XMLDocument::NewComment( const char* str )
{XMLComment* comment = CreateUnlinkedNode<XMLComment>( _commentPool );comment->SetValue( str );return comment;
}XMLText* XMLDocument::NewText( const char* str )
{XMLText* text = CreateUnlinkedNode<XMLText>( _textPool );text->SetValue( str );return text;
}XMLDeclaration* XMLDocument::NewDeclaration( const char* str )
{XMLDeclaration* dec = CreateUnlinkedNode<XMLDeclaration>( _commentPool );dec->SetValue( str ? str : "xml version=\"1.0\" encoding=\"UTF-8\"" );return dec;
}XMLUnknown* XMLDocument::NewUnknown( const char* str )
{XMLUnknown* unk = CreateUnlinkedNode<XMLUnknown>( _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;const errno_t err = fopen_s( &fp, filepath, mode );if ( err ) {return 0;}
#elseFILE* fp = fopen( filepath, mode );
#endifreturn 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 )
{if ( !filename ) {TIXMLASSERT( false );SetError( XML_ERROR_FILE_COULD_NOT_BE_OPENED, 0, "filename=<null>" );return _errorID;}Clear();FILE* fp = callfopen( filename, "rb" );if ( !fp ) {SetError( XML_ERROR_FILE_NOT_FOUND, 0, "filename=%s", filename );return _errorID;}LoadFile( fp );fclose( fp );return _errorID;
}XMLError XMLDocument::LoadFile( FILE* fp )
{Clear();TIXML_FSEEK( fp, 0, SEEK_SET );if ( fgetc( fp ) == EOF && ferror( fp ) != 0 ) {SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );return _errorID;}TIXML_FSEEK( fp, 0, SEEK_END );unsigned long long filelength;{const long long fileLengthSigned = TIXML_FTELL( fp );TIXML_FSEEK( fp, 0, SEEK_SET );if ( fileLengthSigned == -1L ) {SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );return _errorID;}TIXMLASSERT( fileLengthSigned >= 0 );filelength = static_cast<unsigned long long>(fileLengthSigned);}const size_t maxSizeT = static_cast<size_t>(-1);// We'll do the comparison as an unsigned long long, because that's guaranteed to be at// least 8 bytes, even on a 32-bit platform.if ( filelength >= static_cast<unsigned long long>(maxSizeT) ) {// Cannot handle files which won't fit in buffer together with null terminatorSetError( 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 = static_cast<size_t>(filelength);TIXMLASSERT( _charBuffer == 0 );_charBuffer = new char[size+1];const 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 )
{if ( !filename ) {TIXMLASSERT( false );SetError( XML_ERROR_FILE_COULD_NOT_BE_OPENED, 0, "filename=<null>" );return _errorID;}FILE* fp = callfopen( filename, "w" );if ( !fp ) {SetError( XML_ERROR_FILE_COULD_NOT_BE_OPENED, 0, "filename=%s", filename );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.ClearError();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 == static_cast<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, int lineNum, const char* format, ... )
{TIXMLASSERT( error >= 0 && error < XML_ERROR_COUNT );_errorID = error;_errorLineNum = lineNum;_errorStr.Reset();const size_t BUFFER_SIZE = 1000;char* buffer = new char[BUFFER_SIZE];TIXMLASSERT(sizeof(error) <= sizeof(int));TIXML_SNPRINTF(buffer, BUFFER_SIZE, "Error=%s ErrorID=%d (0x%x) Line number=%d", ErrorIDToName(error), int(error), int(error), lineNum);if (format) {size_t len = strlen(buffer);TIXML_SNPRINTF(buffer + len, BUFFER_SIZE - len, ": ");len = strlen(buffer);va_list va;va_start(va, format);TIXML_VSNPRINTF(buffer + len, BUFFER_SIZE - len, format, va);va_end(va);}_errorStr.SetStr(buffer);delete[] buffer;
}/*static*/ const char* XMLDocument::ErrorIDToName(XMLError errorID)
{TIXMLASSERT( errorID >= 0 && errorID < XML_ERROR_COUNT );const char* errorName = _errorNames[errorID];TIXMLASSERT( errorName && errorName[0] );return errorName;
}const char* XMLDocument::ErrorStr() const
{return _errorStr.Empty() ? "" : _errorStr.GetStr();
}void XMLDocument::PrintError() const
{printf("%s\n", ErrorStr());
}const char* XMLDocument::ErrorName() const
{return ErrorIDToName(_errorID);
}void XMLDocument::Parse()
{TIXMLASSERT( NoChildren() ); // Clear() must have been called previouslyTIXMLASSERT( _charBuffer );_parseCurLineNum = 1;_parseLineNum = 1;char* p = _charBuffer;p = XMLUtil::SkipWhiteSpace( p, &_parseCurLineNum );p = const_cast<char*>( XMLUtil::ReadBOM( p, &_writeBOM ) );if ( !*p ) {SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 );return;}ParseDeep(p, 0, &_parseCurLineNum );
}void XMLDocument::PushDepth()
{_parsingDepth++;if (_parsingDepth == TINYXML2_MAX_ELEMENT_DEPTH) {SetError(XML_ELEMENT_DEPTH_EXCEEDED, _parseCurLineNum, "Element nesting is too deep." );}
}void XMLDocument::PopDepth()
{TIXMLASSERT(_parsingDepth > 0);--_parsingDepth;
}XMLPrinter::XMLPrinter( FILE* file, bool compact, int depth ) :_elementJustOpened( false ),_stack(),_firstElement( true ),_fp( file ),_depth( depth ),_textDepth( -1 ),_processEntities( true ),_compactMode( compact ),_buffer()
{for( int i=0; i<ENTITY_RANGE; ++i ) {_entityFlag[i] = false;_restrictedEntityFlag[i] = false;}for( int i=0; i<NUM_ENTITIES; ++i ) {const char entityValue = entities[i].value;const unsigned char flagIndex = static_cast<unsigned char>(entityValue);TIXMLASSERT( flagIndex < ENTITY_RANGE );_entityFlag[flagIndex] = true;}_restrictedEntityFlag[static_cast<unsigned char>('&')] = true;_restrictedEntityFlag[static_cast<unsigned char>('<')] = true;_restrictedEntityFlag[static_cast<unsigned char>('>')] = 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-argsva_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::Write( const char* data, size_t size )
{if ( _fp ) {fwrite ( data , sizeof(char), size, _fp);}else {char* p = _buffer.PushArr( static_cast<int>(size) ) - 1; // back up over the null terminator.memcpy( p, data, size );p[size] = 0;}
}void XMLPrinter::Putc( char ch )
{if ( _fp ) {fputc ( ch, _fp);}else {char* p = _buffer.PushArr( sizeof(char) ) - 1; // back up over the null terminator.p[0] = ch;p[1] = 0;}
}void XMLPrinter::PrintSpace( int depth )
{for( int i=0; i<depth; ++i ) {Write( " " );}
}void XMLPrinter::PrintString( const char* p, bool restricted )
{// Look for runs of bytes between entities to print.const char* q = p;if ( _processEntities ) {const bool* flag = restricted ? _restrictedEntityFlag : _entityFlag;while ( *q ) {TIXMLASSERT( p <= q );// Remember, char is sometimes signed. (How many times has that bitten me?)if ( *q > 0 && *q < ENTITY_RANGE ) {// Check for entities. If one is found, flush// the stream up until the entity, write the// entity, and keep looking.if ( flag[static_cast<unsigned char>(*q)] ) {while ( p < q ) {const size_t delta = q - p;const int toPrint = ( INT_MAX < delta ) ? INT_MAX : static_cast<int>(delta);Write( p, toPrint );p += toPrint;}bool entityPatternPrinted = false;for( int i=0; i<NUM_ENTITIES; ++i ) {if ( entities[i].value == *q ) {Putc( '&' );Write( entities[i].pattern, entities[i].length );Putc( ';' );entityPatternPrinted = true;break;}}if ( !entityPatternPrinted ) {// TIXMLASSERT( entityPatternPrinted ) causes gcc -Wunused-but-set-variable in releaseTIXMLASSERT( false );}++p;}}++q;TIXMLASSERT( p <= q );}// Flush the remaining string. This will be the entire// string if an entity wasn't found.if ( p < q ) {const size_t delta = q - p;const int toPrint = ( INT_MAX < delta ) ? INT_MAX : static_cast<int>(delta);Write( p, toPrint );}}else {Write( p );}
}void XMLPrinter::PushHeader( bool writeBOM, bool writeDec )
{if ( writeBOM ) {static const unsigned char bom[] = { TIXML_UTF_LEAD_0, TIXML_UTF_LEAD_1, TIXML_UTF_LEAD_2, 0 };Write( reinterpret_cast< const char* >( bom ) );}if ( writeDec ) {PushDeclaration( "xml version=\"1.0\"" );}
}void XMLPrinter::OpenElement( const char* name, bool compactMode )
{SealElementIfJustOpened();_stack.Push( name );if ( _textDepth < 0 && !_firstElement && !compactMode ) {Putc( '\n' );PrintSpace( _depth );}Write ( "<" );Write ( name );_elementJustOpened = true;_firstElement = false;++_depth;
}void XMLPrinter::PushAttribute( const char* name, const char* value )
{TIXMLASSERT( _elementJustOpened );Putc ( ' ' );Write( name );Write( "=\"" );PrintString( value, false );Putc ( '\"' );
}void XMLPrinter::PushAttribute( const char* name, int v )
{char buf[BUF_SIZE];XMLUtil::ToStr( v, buf, BUF_SIZE );PushAttribute( name, buf );
}void XMLPrinter::PushAttribute( const char* name, unsigned v )
{char buf[BUF_SIZE];XMLUtil::ToStr( v, buf, BUF_SIZE );PushAttribute( name, buf );
}void XMLPrinter::PushAttribute(const char* name, int64_t v)
{char buf[BUF_SIZE];XMLUtil::ToStr(v, buf, BUF_SIZE);PushAttribute(name, buf);
}void XMLPrinter::PushAttribute(const char* name, uint64_t v)
{char buf[BUF_SIZE];XMLUtil::ToStr(v, buf, BUF_SIZE);PushAttribute(name, buf);
}void XMLPrinter::PushAttribute( const char* name, bool v )
{char buf[BUF_SIZE];XMLUtil::ToStr( v, buf, BUF_SIZE );PushAttribute( name, buf );
}void XMLPrinter::PushAttribute( const char* name, double v )
{char buf[BUF_SIZE];XMLUtil::ToStr( v, buf, BUF_SIZE );PushAttribute( name, buf );
}void XMLPrinter::CloseElement( bool compactMode )
{--_depth;const char* name = _stack.Pop();if ( _elementJustOpened ) {Write( "/>" );}else {if ( _textDepth < 0 && !compactMode) {Putc( '\n' );PrintSpace( _depth );}Write ( "</" );Write ( name );Write ( ">" );}if ( _textDepth == _depth ) {_textDepth = -1;}if ( _depth == 0 && !compactMode) {Putc( '\n' );}_elementJustOpened = false;
}void XMLPrinter::SealElementIfJustOpened()
{if ( !_elementJustOpened ) {return;}_elementJustOpened = false;Putc( '>' );
}void XMLPrinter::PushText( const char* text, bool cdata )
{_textDepth = _depth-1;SealElementIfJustOpened();if ( cdata ) {Write( "<![CDATA[" );Write( text );Write( "]]>" );}else {PrintString( text, true );}
}void XMLPrinter::PushText( int64_t value )
{char buf[BUF_SIZE];XMLUtil::ToStr( value, buf, BUF_SIZE );PushText( buf, false );
}void XMLPrinter::PushText( uint64_t value )
{char buf[BUF_SIZE];XMLUtil::ToStr(value, buf, BUF_SIZE);PushText(buf, false);
}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) {Putc( '\n' );PrintSpace( _depth );}_firstElement = false;Write( "<!--" );Write( comment );Write( "-->" );
}void XMLPrinter::PushDeclaration( const char* value )
{SealElementIfJustOpened();if ( _textDepth < 0 && !_firstElement && !_compactMode) {Putc( '\n' );PrintSpace( _depth );}_firstElement = false;Write( "<?" );Write( value );Write( "?>" );
}void XMLPrinter::PushUnknown( const char* value )
{SealElementIfJustOpened();if ( _textDepth < 0 && !_firstElement && !_compactMode) {Putc( '\n' );PrintSpace( _depth );}_firstElement = false;Write( "<!" );Write( value );Putc( '>' );
}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其他
谢谢您的阅读；如果本文有任何不妥的地方，请留言；
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