diff options
Diffstat (limited to '3rdParty/TinyXml/tinyxml2.h')
-rw-r--r-- | 3rdParty/TinyXml/tinyxml2.h | 3822 |
1 files changed, 1911 insertions, 1911 deletions
diff --git a/3rdParty/TinyXml/tinyxml2.h b/3rdParty/TinyXml/tinyxml2.h index 0f8e9ad..ba1b249 100644 --- a/3rdParty/TinyXml/tinyxml2.h +++ b/3rdParty/TinyXml/tinyxml2.h @@ -1,1911 +1,1911 @@ -/*
-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__)
-# include <ctype.h>
-# include <limits.h>
-# include <stdio.h>
-# include <stdlib.h>
-# include <string.h>
-# include <stdarg.h>
-#else
-# include <cctype>
-# include <climits>
-# include <cstdio>
-# include <cstdlib>
-# include <cstring>
-# include <cstdarg>
-#endif
-
-/*
- TODO: intern strings instead of allocation.
-*/
-/*
- gcc:
- g++ -Wall -DDEBUG tinyxml2.cpp xmltest.cpp -o gccxmltest.exe
-
- Formatting, Artistic Style:
- AStyle.exe --style=1tbs --indent-switches --break-closing-brackets --indent-preprocessor tinyxml2.cpp tinyxml2.h
-*/
-
-#if defined( _DEBUG ) || defined( DEBUG ) || defined (__DEBUG__)
-# ifndef DEBUG
-# define DEBUG
-# endif
-#endif
-
-
-#if defined(DEBUG)
-# if defined(_MSC_VER)
-# define TIXMLASSERT( x ) if ( !(x)) { __debugbreak(); } //if ( !(x)) WinDebugBreak()
-# 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
-
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1400 )
-// Microsoft visual studio, version 2005 and higher.
-/*int _snprintf_s(
- char *buffer,
- size_t sizeOfBuffer,
- size_t count,
- const char *format [,
- argument] ...
-);*/
-inline int TIXML_SNPRINTF( char* buffer, size_t size, const char* format, ... )
-{
- va_list va;
- va_start( va, format );
- int result = vsnprintf_s( buffer, size, _TRUNCATE, format, va );
- va_end( va );
- return result;
-}
-#define TIXML_SSCANF sscanf_s
-#else
-// GCC version 3 and higher
-//#warning( "Using sn* functions." )
-#define TIXML_SNPRINTF snprintf
-#define TIXML_SSCANF sscanf
-#endif
-
-static const int TIXML2_MAJOR_VERSION = 1;
-static const int TIXML2_MINOR_VERSION = 0;
-static const int TIXML2_PATCH_VERSION = 9;
-
-namespace tinyxml2
-{
-class XMLDocument;
-class XMLElement;
-class XMLAttribute;
-class XMLComment;
-class XMLNode;
-class XMLText;
-class XMLDeclaration;
-class XMLUnknown;
-
-class XMLPrinter;
-
-/*
- A class that wraps strings. Normally stores the start and end
- pointers into the XML file itself, and will apply normalization
- and entity translation if actually read. Can also store (and memory
- manage) a traditional char[]
-*/
-class StrPair
-{
-public:
- enum {
- NEEDS_ENTITY_PROCESSING = 0x01,
- NEEDS_NEWLINE_NORMALIZATION = 0x02,
- COLLAPSE_WHITESPACE = 0x04,
-
- TEXT_ELEMENT = NEEDS_ENTITY_PROCESSING | NEEDS_NEWLINE_NORMALIZATION,
- TEXT_ELEMENT_LEAVE_ENTITIES = NEEDS_NEWLINE_NORMALIZATION,
- ATTRIBUTE_NAME = 0,
- ATTRIBUTE_VALUE = NEEDS_ENTITY_PROCESSING | NEEDS_NEWLINE_NORMALIZATION,
- ATTRIBUTE_VALUE_LEAVE_ENTITIES = NEEDS_NEWLINE_NORMALIZATION,
- COMMENT = NEEDS_NEWLINE_NORMALIZATION
- };
-
- StrPair() : _flags( 0 ), _start( 0 ), _end( 0 ) {}
- ~StrPair();
-
- void Set( char* start, char* end, int flags ) {
- Reset();
- _start = start;
- _end = end;
- _flags = flags | NEEDS_FLUSH;
- }
-
- const char* GetStr();
-
- bool Empty() const {
- return _start == _end;
- }
-
- void SetInternedStr( const char* str ) {
- Reset();
- _start = const_cast<char*>(str);
- }
-
- void SetStr( const char* str, int flags=0 );
-
- char* ParseText( char* in, const char* endTag, int strFlags );
- char* ParseName( char* in );
-
-private:
- void Reset();
- void CollapseWhitespace();
-
- enum {
- NEEDS_FLUSH = 0x100,
- NEEDS_DELETE = 0x200
- };
-
- // After parsing, if *end != 0, it can be set to zero.
- int _flags;
- char* _start;
- char* _end;
-};
-
-
-/*
- A dynamic array of Plain Old Data. Doesn't support constructors, etc.
- Has a small initial memory pool, so that low or no usage will not
- cause a call to new/delete
-*/
-template <class T, int INIT>
-class DynArray
-{
-public:
- DynArray< T, INIT >() {
- _mem = _pool;
- _allocated = INIT;
- _size = 0;
- }
-
- ~DynArray() {
- if ( _mem != _pool ) {
- delete [] _mem;
- }
- }
-
- void Push( T t ) {
- EnsureCapacity( _size+1 );
- _mem[_size++] = t;
- }
-
- T* PushArr( int count ) {
- EnsureCapacity( _size+count );
- T* ret = &_mem[_size];
- _size += count;
- return ret;
- }
-
- T Pop() {
- 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];
- }
-
- int Size() const {
- return _size;
- }
-
- int Capacity() const {
- return _allocated;
- }
-
- const T* Mem() const {
- return _mem;
- }
-
- T* Mem() {
- return _mem;
- }
-
-private:
- void EnsureCapacity( int cap ) {
- if ( cap > _allocated ) {
- int newAllocated = cap * 2;
- T* newMem = new T[newAllocated];
- memcpy( newMem, _mem, sizeof(T)*_size ); // warning: not using constructors, only works for PODs
- if ( _mem != _pool ) {
- delete [] _mem;
- }
- _mem = newMem;
- _allocated = newAllocated;
- }
- }
-
- T* _mem;
- T _pool[INIT];
- int _allocated; // objects allocated
- int _size; // number objects in use
-};
-
-
-/*
- Parent virtual class of a pool for fast allocation
- and deallocation of objects.
-*/
-class MemPool
-{
-public:
- MemPool() {}
- virtual ~MemPool() {}
-
- virtual int ItemSize() const = 0;
- virtual void* Alloc() = 0;
- virtual void Free( void* ) = 0;
- virtual void SetTracked() = 0;
-};
-
-
-/*
- Template child class to create pools of the correct type.
-*/
-template< int SIZE >
-class MemPoolT : public MemPool
-{
-public:
- MemPoolT() : _root(0), _currentAllocs(0), _nAllocs(0), _maxAllocs(0), _nUntracked(0) {}
- ~MemPoolT() {
- // Delete the blocks.
- for( int i=0; i<_blockPtrs.Size(); ++i ) {
- delete _blockPtrs[i];
- }
- }
-
- virtual int ItemSize() const {
- return SIZE;
- }
- int CurrentAllocs() const {
- return _currentAllocs;
- }
-
- virtual void* Alloc() {
- if ( !_root ) {
- // Need a new block.
- Block* block = new Block();
- _blockPtrs.Push( block );
-
- for( int i=0; i<COUNT-1; ++i ) {
- block->chunk[i].next = &block->chunk[i+1];
- }
- block->chunk[COUNT-1].next = 0;
- _root = block->chunk;
- }
- void* result = _root;
- _root = _root->next;
-
- ++_currentAllocs;
- if ( _currentAllocs > _maxAllocs ) {
- _maxAllocs = _currentAllocs;
- }
- _nAllocs++;
- _nUntracked++;
- return result;
- }
- virtual void Free( void* mem ) {
- if ( !mem ) {
- return;
- }
- --_currentAllocs;
- Chunk* chunk = (Chunk*)mem;
-#ifdef DEBUG
- memset( chunk, 0xfe, sizeof(Chunk) );
-#endif
- chunk->next = _root;
- _root = chunk;
- }
- void Trace( const char* name ) {
- printf( "Mempool %s watermark=%d [%dk] current=%d size=%d nAlloc=%d blocks=%d\n",
- name, _maxAllocs, _maxAllocs*SIZE/1024, _currentAllocs, SIZE, _nAllocs, _blockPtrs.Size() );
- }
-
- void SetTracked() {
- _nUntracked--;
- }
-
- int Untracked() const {
- return _nUntracked;
- }
-
- enum { COUNT = 1024/SIZE }; // Some compilers do not accept to use COUNT in private part if COUNT is private
-
-private:
- union Chunk {
- Chunk* next;
- char mem[SIZE];
- };
- struct Block {
- Chunk chunk[COUNT];
- };
- DynArray< Block*, 10 > _blockPtrs;
- Chunk* _root;
-
- int _currentAllocs;
- int _nAllocs;
- int _maxAllocs;
- int _nUntracked;
-};
-
-
-
-/**
- Implements the interface to the "Visitor pattern" (see the Accept() method.)
- If you call the Accept() method, it requires being passed a XMLVisitor
- class to handle callbacks. For nodes that contain other nodes (Document, Element)
- you will get called with a VisitEnter/VisitExit pair. Nodes that are always leafs
- are simply called with Visit().
-
- If you return 'true' from a Visit method, recursive parsing will continue. If you return
- false, <b>no children of this node or its sibilings</b> will be visited.
-
- All flavors of Visit methods have a default implementation that returns 'true' (continue
- visiting). You need to only override methods that are interesting to you.
-
- Generally Accept() is called on the TiXmlDocument, although all nodes support visiting.
-
- You should never change the document from a callback.
-
- @sa XMLNode::Accept()
-*/
-class 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;
- }
-};
-
-
-/*
- Utility functionality.
-*/
-class XMLUtil
-{
-public:
- // 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 const char* SkipWhiteSpace( const char* p ) {
- while( !IsUTF8Continuation(*p) && isspace( *reinterpret_cast<const unsigned char*>(p) ) ) {
- ++p;
- }
- return p;
- }
- static char* SkipWhiteSpace( char* p ) {
- while( !IsUTF8Continuation(*p) && isspace( *reinterpret_cast<unsigned char*>(p) ) ) {
- ++p;
- }
- return p;
- }
- static bool IsWhiteSpace( char p ) {
- return !IsUTF8Continuation(p) && isspace( static_cast<unsigned char>(p) );
- }
-
- inline static bool StringEqual( const char* p, const char* q, int nChar=INT_MAX ) {
- int n = 0;
- if ( p == q ) {
- return true;
- }
- while( *p && *q && *p == *q && n<nChar ) {
- ++p;
- ++q;
- ++n;
- }
- if ( (n == nChar) || ( *p == 0 && *q == 0 ) ) {
- return true;
- }
- return false;
- }
- inline static int IsUTF8Continuation( const char p ) {
- return p & 0x80;
- }
- inline static int IsAlphaNum( unsigned char anyByte ) {
- return ( anyByte < 128 ) ? isalnum( anyByte ) : 1;
- }
- inline static int IsAlpha( unsigned char anyByte ) {
- return ( anyByte < 128 ) ? isalpha( anyByte ) : 1;
- }
-
- static const char* ReadBOM( const char* p, bool* hasBOM );
- // p is the starting location,
- // the UTF-8 value of the entity will be placed in value, and length filled in.
- static const char* GetCharacterRef( const char* p, char* value, int* length );
- static void ConvertUTF32ToUTF8( unsigned long input, char* output, int* length );
-
- // converts primitive types to strings
- static void ToStr( int v, char* buffer, int bufferSize );
- static void ToStr( unsigned v, char* buffer, int bufferSize );
- static void ToStr( bool v, char* buffer, int bufferSize );
- static void ToStr( float v, char* buffer, int bufferSize );
- static void ToStr( double v, char* buffer, int bufferSize );
-
- // converts strings to primitive types
- static bool ToInt( const char* str, int* value );
- static bool ToUnsigned( const char* str, unsigned* value );
- static bool ToBool( const char* str, bool* value );
- static bool ToFloat( const char* str, float* value );
- static bool ToDouble( const char* str, double* value );
-};
-
-
-/** XMLNode is a base class for every object that is in the
- XML Document Object Model (DOM), except XMLAttributes.
- Nodes have siblings, a parent, and children which can
- be navigated. A node is always in a XMLDocument.
- The type of a XMLNode can be queried, and it can
- be cast to its more defined type.
-
- A XMLDocument allocates memory for all its Nodes.
- When the XMLDocument gets deleted, all its Nodes
- will also be deleted.
-
- @verbatim
- A Document can contain: Element (container or leaf)
- Comment (leaf)
- Unknown (leaf)
- Declaration( leaf )
-
- An Element can contain: Element (container or leaf)
- Text (leaf)
- Attributes (not on tree)
- Comment (leaf)
- Unknown (leaf)
-
- @endverbatim
-*/
-class XMLNode
-{
- friend class XMLDocument;
- friend class XMLElement;
-public:
-
- /// Get the XMLDocument that owns this XMLNode.
- const XMLDocument* GetDocument() const {
- return _document;
- }
- /// Get the XMLDocument that owns this XMLNode.
- XMLDocument* GetDocument() {
- return _document;
- }
-
- /// Safely cast to an Element, or null.
- virtual XMLElement* ToElement() {
- return 0;
- }
- /// Safely cast to Text, or null.
- virtual XMLText* ToText() {
- return 0;
- }
- /// Safely cast to a Comment, or null.
- virtual XMLComment* ToComment() {
- return 0;
- }
- /// Safely cast to a Document, or null.
- virtual XMLDocument* ToDocument() {
- return 0;
- }
- /// Safely cast to a Declaration, or null.
- virtual XMLDeclaration* ToDeclaration() {
- return 0;
- }
- /// Safely cast to an Unknown, or null.
- virtual XMLUnknown* ToUnknown() {
- return 0;
- }
-
- virtual const XMLElement* ToElement() const {
- return 0;
- }
- virtual const XMLText* ToText() const {
- return 0;
- }
- virtual const XMLComment* ToComment() const {
- return 0;
- }
- virtual const XMLDocument* ToDocument() const {
- return 0;
- }
- virtual const XMLDeclaration* ToDeclaration() const {
- return 0;
- }
- virtual const XMLUnknown* ToUnknown() const {
- return 0;
- }
-
- /** The meaning of 'value' changes for the specific type.
- @verbatim
- Document: empty
- Element: name of the element
- Comment: the comment text
- Unknown: the tag contents
- Text: the text string
- @endverbatim
- */
- const char* Value() const {
- return _value.GetStr();
- }
-
- /** Set the Value of an XML node.
- @sa Value()
- */
- void SetValue( const char* val, bool staticMem=false );
-
- /// Get the parent of this node on the DOM.
- const XMLNode* Parent() const {
- return _parent;
- }
-
- XMLNode* Parent() {
- return _parent;
- }
-
- /// Returns true if this node has no children.
- bool NoChildren() const {
- return !_firstChild;
- }
-
- /// Get the first child node, or null if none exists.
- const XMLNode* FirstChild() const {
- return _firstChild;
- }
-
- XMLNode* FirstChild() {
- return _firstChild;
- }
-
- /** Get the first child element, or optionally the first child
- element with the specified name.
- */
- const XMLElement* FirstChildElement( const char* value=0 ) const;
-
- XMLElement* FirstChildElement( const char* value=0 ) {
- return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->FirstChildElement( value ));
- }
-
- /// Get the last child node, or null if none exists.
- const XMLNode* LastChild() const {
- return _lastChild;
- }
-
- XMLNode* LastChild() {
- return const_cast<XMLNode*>(const_cast<const XMLNode*>(this)->LastChild() );
- }
-
- /** Get the last child element or optionally the last child
- element with the specified name.
- */
- const XMLElement* LastChildElement( const char* value=0 ) const;
-
- XMLElement* LastChildElement( const char* value=0 ) {
- return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->LastChildElement(value) );
- }
-
- /// 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 opitionally supplied name.
- const XMLElement* PreviousSiblingElement( const char* value=0 ) const ;
-
- XMLElement* PreviousSiblingElement( const char* value=0 ) {
- return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->PreviousSiblingElement( value ) );
- }
-
- /// 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 opitionally supplied name.
- const XMLElement* NextSiblingElement( const char* value=0 ) const;
-
- XMLElement* NextSiblingElement( const char* value=0 ) {
- return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->NextSiblingElement( value ) );
- }
-
- /**
- Add a child node as the last (right) child.
- */
- XMLNode* InsertEndChild( XMLNode* addThis );
-
- XMLNode* LinkEndChild( XMLNode* addThis ) {
- return InsertEndChild( addThis );
- }
- /**
- Add a child node as the first (left) child.
- */
- XMLNode* InsertFirstChild( XMLNode* addThis );
- /**
- Add a node after the specified child node.
- */
- XMLNode* InsertAfterChild( XMLNode* afterThis, XMLNode* addThis );
-
- /**
- Delete all the children of this node.
- */
- void DeleteChildren();
-
- /**
- Delete a child of this node.
- */
- void DeleteChild( XMLNode* node );
-
- /**
- Make a copy of this node, but not its children.
- You may pass in a Document pointer that will be
- the owner of the new Node. If the 'document' is
- null, then the node returned will be allocated
- from the current Document. (this->GetDocument())
-
- Note: if called on a XMLDocument, this will return null.
- */
- virtual XMLNode* ShallowClone( XMLDocument* document ) const = 0;
-
- /**
- Test if 2 nodes are the same, but don't test children.
- The 2 nodes do not need to be in the same Document.
-
- Note: if called on a XMLDocument, this will return false.
- */
- virtual bool ShallowEqual( const XMLNode* compare ) const = 0;
-
- /** Accept a hierarchical visit of the nodes in the TinyXML DOM. Every node in the
- XML tree will be conditionally visited and the host will be called back
- via the TiXmlVisitor interface.
-
- This is essentially a SAX interface for TinyXML. (Note however it doesn't re-parse
- the XML for the callbacks, so the performance of TinyXML is unchanged by using this
- interface versus any other.)
-
- The interface has been based on ideas from:
-
- - http://www.saxproject.org/
- - http://c2.com/cgi/wiki?HierarchicalVisitorPattern
-
- Which are both good references for "visiting".
-
- An example of using Accept():
- @verbatim
- TiXmlPrinter printer;
- tinyxmlDoc.Accept( &printer );
- const char* xmlcstr = printer.CStr();
- @endverbatim
- */
- virtual bool Accept( XMLVisitor* visitor ) const = 0;
-
- // internal
- virtual char* ParseDeep( char*, StrPair* );
-
-protected:
- XMLNode( XMLDocument* );
- virtual ~XMLNode();
- XMLNode( const XMLNode& ); // not supported
- XMLNode& operator=( const XMLNode& ); // not supported
-
- XMLDocument* _document;
- XMLNode* _parent;
- mutable StrPair _value;
-
- XMLNode* _firstChild;
- XMLNode* _lastChild;
-
- XMLNode* _prev;
- XMLNode* _next;
-
-private:
- MemPool* _memPool;
- void Unlink( XMLNode* child );
-};
-
-
-/** XML text.
-
- Note that a text node can have child element nodes, for example:
- @verbatim
- <root>This is <b>bold</b></root>
- @endverbatim
-
- A text node can have 2 ways to output the next. "normal" output
- and CDATA. It will default to the mode it was parsed from the XML file and
- you generally want to leave it alone, but you can change the output mode with
- SetCDATA() and query it with CDATA().
-*/
-class XMLText : public XMLNode
-{
- friend class XMLBase;
- 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;
- }
-
- char* ParseDeep( char*, StrPair* endTag );
- virtual XMLNode* ShallowClone( XMLDocument* document ) const;
- virtual bool ShallowEqual( const XMLNode* compare ) const;
-
-protected:
- XMLText( XMLDocument* doc ) : XMLNode( doc ), _isCData( false ) {}
- virtual ~XMLText() {}
- XMLText( const XMLText& ); // not supported
- XMLText& operator=( const XMLText& ); // not supported
-
-private:
- bool _isCData;
-};
-
-
-/** An XML Comment. */
-class 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;
-
- char* ParseDeep( char*, StrPair* endTag );
- virtual XMLNode* ShallowClone( XMLDocument* document ) const;
- virtual bool ShallowEqual( const XMLNode* compare ) const;
-
-protected:
- XMLComment( XMLDocument* doc );
- virtual ~XMLComment();
- XMLComment( const XMLComment& ); // not supported
- XMLComment& operator=( const XMLComment& ); // not supported
-
-private:
-};
-
-
-/** In correct XML the declaration is the first entry in the file.
- @verbatim
- <?xml version="1.0" standalone="yes"?>
- @endverbatim
-
- TinyXML2 will happily read or write files without a declaration,
- however.
-
- The text of the declaration isn't interpreted. It is parsed
- and written as a string.
-*/
-class 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;
-
- char* ParseDeep( char*, StrPair* endTag );
- virtual XMLNode* ShallowClone( XMLDocument* document ) const;
- virtual bool ShallowEqual( const XMLNode* compare ) const;
-
-protected:
- XMLDeclaration( XMLDocument* doc );
- virtual ~XMLDeclaration();
- XMLDeclaration( const XMLDeclaration& ); // not supported
- XMLDeclaration& operator=( const XMLDeclaration& ); // not supported
-};
-
-
-/** Any tag that tinyXml doesn't recognize is saved as an
- unknown. It is a tag of text, but should not be modified.
- It will be written back to the XML, unchanged, when the file
- is saved.
-
- DTD tags get thrown into TiXmlUnknowns.
-*/
-class 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;
-
- char* ParseDeep( char*, StrPair* endTag );
- virtual XMLNode* ShallowClone( XMLDocument* document ) const;
- virtual bool ShallowEqual( const XMLNode* compare ) const;
-
-protected:
- XMLUnknown( XMLDocument* doc );
- virtual ~XMLUnknown();
- XMLUnknown( const XMLUnknown& ); // not supported
- XMLUnknown& operator=( const XMLUnknown& ); // not supported
-};
-
-
-enum XMLError {
- XML_NO_ERROR = 0,
- XML_SUCCESS = 0,
-
- XML_NO_ATTRIBUTE,
- XML_WRONG_ATTRIBUTE_TYPE,
-
- XML_ERROR_FILE_NOT_FOUND,
- XML_ERROR_FILE_COULD_NOT_BE_OPENED,
- XML_ERROR_FILE_READ_ERROR,
- XML_ERROR_ELEMENT_MISMATCH,
- XML_ERROR_PARSING_ELEMENT,
- XML_ERROR_PARSING_ATTRIBUTE,
- XML_ERROR_IDENTIFYING_TAG,
- XML_ERROR_PARSING_TEXT,
- XML_ERROR_PARSING_CDATA,
- XML_ERROR_PARSING_COMMENT,
- XML_ERROR_PARSING_DECLARATION,
- XML_ERROR_PARSING_UNKNOWN,
- XML_ERROR_EMPTY_DOCUMENT,
- XML_ERROR_MISMATCHED_ELEMENT,
- XML_ERROR_PARSING,
-
- XML_CAN_NOT_CONVERT_TEXT,
- XML_NO_TEXT_NODE
-};
-
-
-/** An attribute is a name-value pair. Elements have an arbitrary
- number of attributes, each with a unique name.
-
- @note The attributes are not XMLNodes. You may only query the
- Next() attribute in a list.
-*/
-class XMLAttribute
-{
- friend class XMLElement;
-public:
- /// The name of the attribute.
- const char* Name() const {
- return _name.GetStr();
- }
- /// The value of the attribute.
- const char* Value() const {
- return _value.GetStr();
- }
- /// The next attribute in the list.
- const XMLAttribute* Next() const {
- return _next;
- }
-
- /** IntAttribute 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 QueryIntAttribute() if you need error checking.
- */
- int IntValue() const {
- int i=0;
- QueryIntValue( &i );
- return i;
- }
- /// Query as an unsigned integer. See IntAttribute()
- unsigned UnsignedValue() const {
- unsigned i=0;
- QueryUnsignedValue( &i );
- return i;
- }
- /// Query as a boolean. See IntAttribute()
- bool BoolValue() const {
- bool b=false;
- QueryBoolValue( &b );
- return b;
- }
- /// Query as a double. See IntAttribute()
- double DoubleValue() const {
- double d=0;
- QueryDoubleValue( &d );
- return d;
- }
- /// Query as a float. See IntAttribute()
- float FloatValue() const {
- float f=0;
- QueryFloatValue( &f );
- return f;
- }
-
- /** QueryIntAttribute interprets the attribute as an integer, and returns the value
- in the provided paremeter. The function will return XML_NO_ERROR on success,
- and XML_WRONG_ATTRIBUTE_TYPE if the conversion is not successful.
- */
- XMLError QueryIntValue( int* value ) const;
- /// See QueryIntAttribute
- XMLError QueryUnsignedValue( unsigned int* value ) const;
- /// See QueryIntAttribute
- XMLError QueryBoolValue( bool* value ) const;
- /// See QueryIntAttribute
- XMLError QueryDoubleValue( double* value ) const;
- /// See QueryIntAttribute
- XMLError QueryFloatValue( float* value ) const;
-
- /// Set the attribute to a string value.
- void SetAttribute( const char* value );
- /// Set the attribute to value.
- void SetAttribute( int value );
- /// Set the attribute to value.
- void SetAttribute( unsigned value );
- /// Set the attribute to value.
- void SetAttribute( bool value );
- /// Set the attribute to value.
- void SetAttribute( double value );
- /// Set the attribute to value.
- void SetAttribute( float value );
-
-private:
- enum { BUF_SIZE = 200 };
-
- XMLAttribute() : _next( 0 ) {}
- virtual ~XMLAttribute() {}
-
- XMLAttribute( const XMLAttribute& ); // not supported
- void operator=( const XMLAttribute& ); // not supported
- void SetName( const char* name );
-
- char* ParseDeep( char* p, bool processEntities );
-
- mutable StrPair _name;
- mutable StrPair _value;
- XMLAttribute* _next;
- MemPool* _memPool;
-};
-
-
-/** The element is a container class. It has a value, the element name,
- and can contain other elements, text, comments, and unknowns.
- Elements also contain an arbitrary number of attributes.
-*/
-class XMLElement : public XMLNode
-{
- friend class XMLBase;
- friend class XMLDocument;
-public:
- /// Get the name of an element (which is the Value() of the node.)
- const char* Name() const {
- return Value();
- }
- /// Set the name of the element.
- void SetName( const char* str, bool staticMem=false ) {
- SetValue( str, staticMem );
- }
-
- virtual XMLElement* ToElement() {
- return this;
- }
- virtual const XMLElement* ToElement() const {
- return this;
- }
- virtual bool Accept( XMLVisitor* visitor ) const;
-
- /** Given an attribute name, Attribute() returns the value
- for the attribute of that name, or null if none
- exists. For example:
-
- @verbatim
- const char* value = ele->Attribute( "foo" );
- @endverbatim
-
- The 'value' parameter is normally null. However, if specified,
- the attribute will only be returned if the 'name' and 'value'
- match. This allow you to write code:
-
- @verbatim
- if ( ele->Attribute( "foo", "bar" ) ) callFooIsBar();
- @endverbatim
-
- rather than:
- @verbatim
- if ( ele->Attribute( "foo" ) ) {
- if ( strcmp( ele->Attribute( "foo" ), "bar" ) == 0 ) callFooIsBar();
- }
- @endverbatim
- */
- const char* Attribute( const char* name, const char* value=0 ) const;
-
- /** Given an attribute name, IntAttribute() returns the value
- of the attribute interpreted as an integer. 0 will be
- returned if there is an error. For a method with error
- checking, see QueryIntAttribute()
- */
- int IntAttribute( const char* name ) const {
- int i=0;
- QueryIntAttribute( name, &i );
- return i;
- }
- /// See IntAttribute()
- unsigned UnsignedAttribute( const char* name ) const {
- unsigned i=0;
- QueryUnsignedAttribute( name, &i );
- return i;
- }
- /// See IntAttribute()
- bool BoolAttribute( const char* name ) const {
- bool b=false;
- QueryBoolAttribute( name, &b );
- return b;
- }
- /// See IntAttribute()
- double DoubleAttribute( const char* name ) const {
- double d=0;
- QueryDoubleAttribute( name, &d );
- return d;
- }
- /// See IntAttribute()
- float FloatAttribute( const char* name ) const {
- float f=0;
- QueryFloatAttribute( name, &f );
- return f;
- }
-
- /** Given an attribute name, QueryIntAttribute() returns
- XML_NO_ERROR, XML_WRONG_ATTRIBUTE_TYPE if the conversion
- can't be performed, or XML_NO_ATTRIBUTE if the attribute
- doesn't exist. If successful, the result of the conversion
- will be written to 'value'. If not successful, nothing will
- be written to 'value'. This allows you to provide default
- value:
-
- @verbatim
- int value = 10;
- QueryIntAttribute( "foo", &value ); // if "foo" isn't found, value will still be 10
- @endverbatim
- */
- XMLError QueryIntAttribute( const char* name, int* value ) const {
- const XMLAttribute* a = FindAttribute( name );
- if ( !a ) {
- return XML_NO_ATTRIBUTE;
- }
- return a->QueryIntValue( value );
- }
- /// See QueryIntAttribute()
- XMLError QueryUnsignedAttribute( const char* name, unsigned int* value ) const {
- const XMLAttribute* a = FindAttribute( name );
- if ( !a ) {
- return XML_NO_ATTRIBUTE;
- }
- return a->QueryUnsignedValue( value );
- }
- /// See QueryIntAttribute()
- XMLError QueryBoolAttribute( const char* name, bool* value ) const {
- const XMLAttribute* a = FindAttribute( name );
- if ( !a ) {
- return XML_NO_ATTRIBUTE;
- }
- return a->QueryBoolValue( value );
- }
- /// See QueryIntAttribute()
- XMLError QueryDoubleAttribute( const char* name, double* value ) const {
- const XMLAttribute* a = FindAttribute( name );
- if ( !a ) {
- return XML_NO_ATTRIBUTE;
- }
- return a->QueryDoubleValue( value );
- }
- /// See QueryIntAttribute()
- XMLError QueryFloatAttribute( const char* name, float* value ) const {
- const XMLAttribute* a = FindAttribute( name );
- if ( !a ) {
- return XML_NO_ATTRIBUTE;
- }
- return a->QueryFloatValue( value );
- }
-
- /// Sets the named attribute to value.
- void SetAttribute( const char* name, const char* value ) {
- XMLAttribute* a = FindOrCreateAttribute( name );
- a->SetAttribute( value );
- }
- /// Sets the named attribute to value.
- void SetAttribute( const char* name, int value ) {
- XMLAttribute* a = FindOrCreateAttribute( name );
- a->SetAttribute( value );
- }
- /// Sets the named attribute to value.
- void SetAttribute( const char* name, unsigned value ) {
- XMLAttribute* a = FindOrCreateAttribute( name );
- a->SetAttribute( value );
- }
- /// Sets the named attribute to value.
- void SetAttribute( const char* name, bool value ) {
- XMLAttribute* a = FindOrCreateAttribute( name );
- a->SetAttribute( value );
- }
- /// Sets the named attribute to value.
- void SetAttribute( const char* name, double value ) {
- XMLAttribute* a = FindOrCreateAttribute( name );
- a->SetAttribute( value );
- }
-
- /**
- Delete an attribute.
- */
- void DeleteAttribute( const char* name );
-
- /// Return the first attribute in the list.
- const XMLAttribute* FirstAttribute() const {
- return _rootAttribute;
- }
- /// Query a specific attribute in the list.
- const XMLAttribute* FindAttribute( const char* name ) const;
-
- /** Convenience function for easy access to the text inside an element. Although easy
- and concise, GetText() is limited compared to getting the TiXmlText child
- and accessing it directly.
-
- If the first child of 'this' is a TiXmlText, 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 from
- this XML:
- @verbatim
- <foo><b>This is text</b></foo>
- @endverbatim
-
- then the value of str would be null. The first child node isn't a text node, it is
- another element. From this XML:
- @verbatim
- <foo>This is <b>text</b></foo>
- @endverbatim
- GetText() will return "This is ".
- */
- const char* GetText() const;
-
- /**
- Convenience method to query the value of a child text node. This is probably best
- shown by example. Given you have a document is this form:
- @verbatim
- <point>
- <x>1</x>
- <y>1.4</y>
- </point>
- @endverbatim
-
- The QueryIntText() and similar functions provide a safe and easier way to get to the
- "value" of x and y.
-
- @verbatim
- int x = 0;
- float y = 0; // types of x and y are contrived for example
- const XMLElement* xElement = pointElement->FirstChildElement( "x" );
- const XMLElement* yElement = pointElement->FirstChildElement( "y" );
- xElement->QueryIntText( &x );
- yElement->QueryFloatText( &y );
- @endverbatim
-
- @returns XML_SUCCESS (0) on success, XML_CAN_NOT_CONVERT_TEXT if the text cannot be converted
- to the requested type, and XML_NO_TEXT_NODE if there is no child text to query.
-
- */
- XMLError QueryIntText( int* ival ) const;
- /// See QueryIntText()
- XMLError QueryUnsignedText( unsigned* uval ) const;
- /// See QueryIntText()
- XMLError QueryBoolText( bool* bval ) const;
- /// See QueryIntText()
- XMLError QueryDoubleText( double* dval ) const;
- /// See QueryIntText()
- XMLError QueryFloatText( float* fval ) const;
-
- // internal:
- enum {
- OPEN, // <foo>
- CLOSED, // <foo/>
- CLOSING // </foo>
- };
- int ClosingType() const {
- return _closingType;
- }
- char* ParseDeep( char* p, StrPair* endTag );
- virtual XMLNode* ShallowClone( XMLDocument* document ) const;
- virtual bool ShallowEqual( const XMLNode* compare ) const;
-
-private:
- XMLElement( XMLDocument* doc );
- virtual ~XMLElement();
- XMLElement( const XMLElement& ); // not supported
- void operator=( const XMLElement& ); // not supported
-
- XMLAttribute* FindAttribute( const char* name );
- XMLAttribute* FindOrCreateAttribute( const char* name );
- //void LinkAttribute( XMLAttribute* attrib );
- char* ParseAttributes( char* p );
-
- int _closingType;
- // The attribute list is ordered; there is no 'lastAttribute'
- // because the list needs to be scanned for dupes before adding
- // a new attribute.
- XMLAttribute* _rootAttribute;
-};
-
-
-enum Whitespace {
- PRESERVE_WHITESPACE,
- COLLAPSE_WHITESPACE
-};
-
-
-/** A Document binds together all the functionality.
- It can be saved, loaded, and printed to the screen.
- All Nodes are connected and allocated to a Document.
- If the Document is deleted, all its Nodes are also deleted.
-*/
-class XMLDocument : public XMLNode
-{
- friend class XMLElement;
-public:
- /// constructor
- XMLDocument( bool processEntities = true, Whitespace = PRESERVE_WHITESPACE );
- ~XMLDocument();
-
- virtual XMLDocument* ToDocument() {
- return this;
- }
- virtual const XMLDocument* ToDocument() const {
- return this;
- }
-
- /**
- Parse an XML file from a character string.
- Returns XML_NO_ERROR (0) on success, or
- an errorID.
-
- You may optionally pass in the 'nBytes', which is
- the number of bytes which will be parsed. If not
- specified, TinyXML will assume 'xml' points to a
- null terminated string.
- */
- XMLError Parse( const char* xml, size_t nBytes=(size_t)(-1) );
-
- /**
- Load an XML file from disk.
- Returns XML_NO_ERROR (0) on success, or
- an errorID.
- */
- XMLError LoadFile( const char* filename );
-
- /**
- Load an XML file from disk. You are responsible
- for providing and closing the FILE*.
-
- Returns XML_NO_ERROR (0) on success, or
- an errorID.
- */
- XMLError LoadFile( FILE* );
-
- /**
- Save the XML file to disk.
- Returns XML_NO_ERROR (0) on success, or
- an errorID.
- */
- XMLError SaveFile( const char* filename, bool compact = false );
-
- /**
- Save the XML file to disk. You are responsible
- for providing and closing the FILE*.
-
- Returns XML_NO_ERROR (0) on success, or
- an errorID.
- */
- XMLError SaveFile( FILE* fp, bool compact = false );
-
- bool ProcessEntities() const {
- return _processEntities;
- }
- Whitespace WhitespaceMode() const {
- return _whitespace;
- }
-
- /**
- Returns true if this document has a leading Byte Order Mark of UTF8.
- */
- bool HasBOM() const {
- return _writeBOM;
- }
- /** Sets whether to write the BOM when writing the file.
- */
- void SetBOM( bool useBOM ) {
- _writeBOM = useBOM;
- }
-
- /** Return the root element of DOM. Equivalent to FirstChildElement().
- To get the first node, use FirstChild().
- */
- XMLElement* RootElement() {
- return FirstChildElement();
- }
- const XMLElement* RootElement() const {
- return FirstChildElement();
- }
-
- /** Print the Document. If the Printer is not provided, it will
- print to stdout. If you provide Printer, this can print to a file:
- @verbatim
- XMLPrinter printer( fp );
- doc.Print( &printer );
- @endverbatim
-
- Or you can use a printer to print to memory:
- @verbatim
- XMLPrinter printer;
- doc->Print( &printer );
- // printer.CStr() has a const char* to the XML
- @endverbatim
- */
- void Print( XMLPrinter* streamer=0 );
- virtual bool Accept( XMLVisitor* visitor ) const;
-
- /**
- Create a new Element associated with
- this Document. The memory for the Element
- is managed by the Document.
- */
- XMLElement* NewElement( const char* name );
- /**
- Create a new Comment associated with
- this Document. The memory for the Comment
- is managed by the Document.
- */
- XMLComment* NewComment( const char* comment );
- /**
- Create a new Text associated with
- this Document. The memory for the Text
- is managed by the Document.
- */
- XMLText* NewText( const char* text );
- /**
- Create a new Declaration associated with
- this Document. The memory for the object
- is managed by the Document.
-
- If the 'text' param is null, the standard
- declaration is used.:
- @verbatim
- <?xml version="1.0" encoding="UTF-8"?>
- @endverbatim
- */
- XMLDeclaration* NewDeclaration( const char* text=0 );
- /**
- Create a new Unknown associated with
- this Document. The memory forthe object
- is managed by the Document.
- */
- XMLUnknown* NewUnknown( const char* text );
-
- /**
- Delete a node associated with this document.
- It will be unlinked from the DOM.
- */
- void DeleteNode( XMLNode* node ) {
- node->_parent->DeleteChild( node );
- }
-
- void SetError( XMLError error, const char* str1, const char* str2 );
-
- /// Return true if there was an error parsing the document.
- bool Error() const {
- return _errorID != XML_NO_ERROR;
- }
- /// Return the errorID.
- XMLError ErrorID() const {
- return _errorID;
- }
- /// Return a possibly helpful diagnostic location or string.
- const char* GetErrorStr1() const {
- return _errorStr1;
- }
- /// Return a possibly helpful secondary diagnostic location or string.
- const char* GetErrorStr2() const {
- return _errorStr2;
- }
- /// If there is an error, print it to stdout.
- void PrintError() const;
-
- // internal
- char* Identify( char* p, XMLNode** node );
-
- virtual XMLNode* ShallowClone( XMLDocument* /*document*/ ) const {
- return 0;
- }
- virtual bool ShallowEqual( const XMLNode* /*compare*/ ) const {
- return false;
- }
-
-private:
- XMLDocument( const XMLDocument& ); // not supported
- void operator=( const XMLDocument& ); // not supported
- void InitDocument();
-
- bool _writeBOM;
- bool _processEntities;
- XMLError _errorID;
- Whitespace _whitespace;
- const char* _errorStr1;
- const char* _errorStr2;
- char* _charBuffer;
-
- MemPoolT< sizeof(XMLElement) > _elementPool;
- MemPoolT< sizeof(XMLAttribute) > _attributePool;
- MemPoolT< sizeof(XMLText) > _textPool;
- MemPoolT< sizeof(XMLComment) > _commentPool;
-};
-
-
-/**
- A XMLHandle is a class that wraps a node pointer with null checks; this is
- an incredibly useful thing. Note that XMLHandle is not part of the TinyXML
- DOM structure. It is a separate utility class.
-
- Take an example:
- @verbatim
- <Document>
- <Element attributeA = "valueA">
- <Child attributeB = "value1" />
- <Child attributeB = "value2" />
- </Element>
- </Document>
- @endverbatim
-
- Assuming you want the value of "attributeB" in the 2nd "Child" element, it's very
- easy to write a *lot* of code that looks like:
-
- @verbatim
- XMLElement* root = document.FirstChildElement( "Document" );
- if ( root )
- {
- XMLElement* element = root->FirstChildElement( "Element" );
- if ( element )
- {
- XMLElement* child = element->FirstChildElement( "Child" );
- if ( child )
- {
- XMLElement* child2 = child->NextSiblingElement( "Child" );
- if ( child2 )
- {
- // Finally do something useful.
- @endverbatim
-
- And that doesn't even cover "else" cases. XMLHandle addresses the verbosity
- of such code. A XMLHandle checks for null pointers so it is perfectly safe
- and correct to use:
-
- @verbatim
- XMLHandle docHandle( &document );
- XMLElement* child2 = docHandle.FirstChild( "Document" ).FirstChild( "Element" ).FirstChild().NextSibling().ToElement();
- if ( child2 )
- {
- // do something useful
- @endverbatim
-
- Which is MUCH more concise and useful.
-
- It is also safe to copy handles - internally they are nothing more than node pointers.
- @verbatim
- XMLHandle handleCopy = handle;
- @endverbatim
-
- See also XMLConstHandle, which is the same as XMLHandle, but operates on const objects.
-*/
-class XMLHandle
-{
-public:
- /// Create a handle from any node (at any depth of the tree.) This can be a null pointer.
- XMLHandle( XMLNode* node ) {
- _node = node;
- }
- /// Create a handle from a node.
- XMLHandle( XMLNode& node ) {
- _node = &node;
- }
- /// Copy constructor
- XMLHandle( const XMLHandle& ref ) {
- _node = ref._node;
- }
- /// Assignment
- XMLHandle& operator=( const XMLHandle& ref ) {
- _node = ref._node;
- return *this;
- }
-
- /// Get the first child of this handle.
- XMLHandle FirstChild() {
- return XMLHandle( _node ? _node->FirstChild() : 0 );
- }
- /// Get the first child element of this handle.
- XMLHandle FirstChildElement( const char* value=0 ) {
- return XMLHandle( _node ? _node->FirstChildElement( value ) : 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* _value=0 ) {
- return XMLHandle( _node ? _node->LastChildElement( _value ) : 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* _value=0 ) {
- return XMLHandle( _node ? _node->PreviousSiblingElement( _value ) : 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* _value=0 ) {
- return XMLHandle( _node ? _node->NextSiblingElement( _value ) : 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() ) ? _node->ToElement() : 0 );
- }
- /// Safe cast to XMLText. This can return null.
- XMLText* ToText() {
- return ( ( _node && _node->ToText() ) ? _node->ToText() : 0 );
- }
- /// Safe cast to XMLUnknown. This can return null.
- XMLUnknown* ToUnknown() {
- return ( ( _node && _node->ToUnknown() ) ? _node->ToUnknown() : 0 );
- }
- /// Safe cast to XMLDeclaration. This can return null.
- XMLDeclaration* ToDeclaration() {
- return ( ( _node && _node->ToDeclaration() ) ? _node->ToDeclaration() : 0 );
- }
-
-private:
- XMLNode* _node;
-};
-
-
-/**
- A variant of the XMLHandle class for working with const XMLNodes and Documents. It is the
- same in all regards, except for the 'const' qualifiers. See XMLHandle for API.
-*/
-class XMLConstHandle
-{
-public:
- XMLConstHandle( const XMLNode* node ) {
- _node = node;
- }
- XMLConstHandle( const XMLNode& node ) {
- _node = &node;
- }
- XMLConstHandle( const XMLConstHandle& ref ) {
- _node = ref._node;
- }
-
- XMLConstHandle& operator=( const XMLConstHandle& ref ) {
- _node = ref._node;
- return *this;
- }
-
- const XMLConstHandle FirstChild() const {
- return XMLConstHandle( _node ? _node->FirstChild() : 0 );
- }
- const XMLConstHandle FirstChildElement( const char* value=0 ) const {
- return XMLConstHandle( _node ? _node->FirstChildElement( value ) : 0 );
- }
- const XMLConstHandle LastChild() const {
- return XMLConstHandle( _node ? _node->LastChild() : 0 );
- }
- const XMLConstHandle LastChildElement( const char* _value=0 ) const {
- return XMLConstHandle( _node ? _node->LastChildElement( _value ) : 0 );
- }
- const XMLConstHandle PreviousSibling() const {
- return XMLConstHandle( _node ? _node->PreviousSibling() : 0 );
- }
- const XMLConstHandle PreviousSiblingElement( const char* _value=0 ) const {
- return XMLConstHandle( _node ? _node->PreviousSiblingElement( _value ) : 0 );
- }
- const XMLConstHandle NextSibling() const {
- return XMLConstHandle( _node ? _node->NextSibling() : 0 );
- }
- const XMLConstHandle NextSiblingElement( const char* _value=0 ) const {
- return XMLConstHandle( _node ? _node->NextSiblingElement( _value ) : 0 );
- }
-
-
- const XMLNode* ToNode() const {
- return _node;
- }
- const XMLElement* ToElement() const {
- return ( ( _node && _node->ToElement() ) ? _node->ToElement() : 0 );
- }
- const XMLText* ToText() const {
- return ( ( _node && _node->ToText() ) ? _node->ToText() : 0 );
- }
- const XMLUnknown* ToUnknown() const {
- return ( ( _node && _node->ToUnknown() ) ? _node->ToUnknown() : 0 );
- }
- const XMLDeclaration* ToDeclaration() const {
- return ( ( _node && _node->ToDeclaration() ) ? _node->ToDeclaration() : 0 );
- }
-
-private:
- const XMLNode* _node;
-};
-
-
-/**
- Printing functionality. The XMLPrinter gives you more
- options than the XMLDocument::Print() method.
-
- It can:
- -# Print to memory.
- -# Print to a file you provide.
- -# Print XML without a XMLDocument.
-
- Print to Memory
-
- @verbatim
- XMLPrinter printer;
- doc->Print( &printer );
- SomeFunction( printer.CStr() );
- @endverbatim
-
- Print to a File
-
- You provide the file pointer.
- @verbatim
- XMLPrinter printer( fp );
- doc.Print( &printer );
- @endverbatim
-
- Print without a XMLDocument
-
- When loading, an XML parser is very useful. However, sometimes
- when saving, it just gets in the way. The code is often set up
- for streaming, and constructing the DOM is just overhead.
-
- The Printer supports the streaming case. The following code
- prints out a trivially simple XML file without ever creating
- an XML document.
-
- @verbatim
- XMLPrinter printer( fp );
- printer.OpenElement( "foo" );
- printer.PushAttribute( "foo", "bar" );
- printer.CloseElement();
- @endverbatim
-*/
-class XMLPrinter : public XMLVisitor
-{
-public:
- /** Construct the printer. If the FILE* is specified,
- this will print to the FILE. Else it will print
- to memory, and the result is available in CStr().
- If 'compact' is set to true, then output is created
- with only required whitespace and newlines.
- */
- XMLPrinter( FILE* file=0, bool compact = false );
- ~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 );
- /// If streaming, add an attribute to an open element.
- void PushAttribute( const char* name, const char* value );
- void PushAttribute( const char* name, int value );
- void PushAttribute( const char* name, unsigned value );
- void PushAttribute( const char* name, bool value );
- void PushAttribute( const char* name, double value );
- /// If streaming, close the Element.
- void CloseElement();
-
- /// Add a text node.
- void PushText( const char* text, bool cdata=false );
- /// Add a text node from an integer.
- void PushText( int value );
- /// Add a text node from an unsigned.
- void PushText( unsigned value );
- /// Add a text node from a bool.
- void PushText( bool value );
- /// Add a text node from a float.
- void PushText( float value );
- /// Add a text node from a double.
- void PushText( double value );
-
- /// Add a comment
- void PushComment( const char* comment );
-
- void PushDeclaration( const char* value );
- void PushUnknown( const char* value );
-
- virtual bool VisitEnter( const XMLDocument& /*doc*/ );
- virtual bool VisitExit( const XMLDocument& /*doc*/ ) {
- return true;
- }
-
- virtual bool VisitEnter( const XMLElement& element, const XMLAttribute* attribute );
- virtual bool VisitExit( const XMLElement& element );
-
- virtual bool Visit( const XMLText& text );
- virtual bool Visit( const XMLComment& comment );
- virtual bool Visit( const XMLDeclaration& declaration );
- virtual bool Visit( const XMLUnknown& unknown );
-
- /**
- If in print to memory mode, return a pointer to
- the XML file in memory.
- */
- const char* CStr() const {
- return _buffer.Mem();
- }
- /**
- If in print to memory mode, return the size
- of the XML file in memory. (Note the size returned
- includes the terminating null.)
- */
- int CStrSize() const {
- return _buffer.Size();
- }
-
-private:
- void SealElement();
- void PrintSpace( int depth );
- void PrintString( const char*, bool restrictedEntitySet ); // prints out, after detecting entities.
- void Print( const char* format, ... );
-
- bool _elementJustOpened;
- 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< const char*, 10 > _stack;
- DynArray< char, 20 > _buffer;
-#ifdef _MSC_VER
- DynArray< char, 20 > _accumulator;
-#endif
-};
-
-
-} // tinyxml2
-
-
-#endif // TINYXML2_INCLUDED
+/* +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__) +# include <ctype.h> +# include <limits.h> +# include <stdio.h> +# include <stdlib.h> +# include <string.h> +# include <stdarg.h> +#else +# include <cctype> +# include <climits> +# include <cstdio> +# include <cstdlib> +# include <cstring> +# include <cstdarg> +#endif + +/* + TODO: intern strings instead of allocation. +*/ +/* + gcc: + g++ -Wall -DDEBUG tinyxml2.cpp xmltest.cpp -o gccxmltest.exe + + Formatting, Artistic Style: + AStyle.exe --style=1tbs --indent-switches --break-closing-brackets --indent-preprocessor tinyxml2.cpp tinyxml2.h +*/ + +#if defined( _DEBUG ) || defined( DEBUG ) || defined (__DEBUG__) +# ifndef DEBUG +# define DEBUG +# endif +#endif + + +#if defined(DEBUG) +# if defined(_MSC_VER) +# define TIXMLASSERT( x ) if ( !(x)) { __debugbreak(); } //if ( !(x)) WinDebugBreak() +# 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 + + +#if defined(_MSC_VER) && (_MSC_VER >= 1400 ) +// Microsoft visual studio, version 2005 and higher. +/*int _snprintf_s( + char *buffer, + size_t sizeOfBuffer, + size_t count, + const char *format [, + argument] ... +);*/ +inline int TIXML_SNPRINTF( char* buffer, size_t size, const char* format, ... ) +{ + va_list va; + va_start( va, format ); + int result = vsnprintf_s( buffer, size, _TRUNCATE, format, va ); + va_end( va ); + return result; +} +#define TIXML_SSCANF sscanf_s +#else +// GCC version 3 and higher +//#warning( "Using sn* functions." ) +#define TIXML_SNPRINTF snprintf +#define TIXML_SSCANF sscanf +#endif + +static const int TIXML2_MAJOR_VERSION = 1; +static const int TIXML2_MINOR_VERSION = 0; +static const int TIXML2_PATCH_VERSION = 9; + +namespace tinyxml2 +{ +class XMLDocument; +class XMLElement; +class XMLAttribute; +class XMLComment; +class XMLNode; +class XMLText; +class XMLDeclaration; +class XMLUnknown; + +class XMLPrinter; + +/* + A class that wraps strings. Normally stores the start and end + pointers into the XML file itself, and will apply normalization + and entity translation if actually read. Can also store (and memory + manage) a traditional char[] +*/ +class StrPair +{ +public: + enum { + NEEDS_ENTITY_PROCESSING = 0x01, + NEEDS_NEWLINE_NORMALIZATION = 0x02, + COLLAPSE_WHITESPACE = 0x04, + + TEXT_ELEMENT = NEEDS_ENTITY_PROCESSING | NEEDS_NEWLINE_NORMALIZATION, + TEXT_ELEMENT_LEAVE_ENTITIES = NEEDS_NEWLINE_NORMALIZATION, + ATTRIBUTE_NAME = 0, + ATTRIBUTE_VALUE = NEEDS_ENTITY_PROCESSING | NEEDS_NEWLINE_NORMALIZATION, + ATTRIBUTE_VALUE_LEAVE_ENTITIES = NEEDS_NEWLINE_NORMALIZATION, + COMMENT = NEEDS_NEWLINE_NORMALIZATION + }; + + StrPair() : _flags( 0 ), _start( 0 ), _end( 0 ) {} + ~StrPair(); + + void Set( char* start, char* end, int flags ) { + Reset(); + _start = start; + _end = end; + _flags = flags | NEEDS_FLUSH; + } + + const char* GetStr(); + + bool Empty() const { + return _start == _end; + } + + void SetInternedStr( const char* str ) { + Reset(); + _start = const_cast<char*>(str); + } + + void SetStr( const char* str, int flags=0 ); + + char* ParseText( char* in, const char* endTag, int strFlags ); + char* ParseName( char* in ); + +private: + void Reset(); + void CollapseWhitespace(); + + enum { + NEEDS_FLUSH = 0x100, + NEEDS_DELETE = 0x200 + }; + + // After parsing, if *end != 0, it can be set to zero. + int _flags; + char* _start; + char* _end; +}; + + +/* + A dynamic array of Plain Old Data. Doesn't support constructors, etc. + Has a small initial memory pool, so that low or no usage will not + cause a call to new/delete +*/ +template <class T, int INIT> +class DynArray +{ +public: + DynArray< T, INIT >() { + _mem = _pool; + _allocated = INIT; + _size = 0; + } + + ~DynArray() { + if ( _mem != _pool ) { + delete [] _mem; + } + } + + void Push( T t ) { + EnsureCapacity( _size+1 ); + _mem[_size++] = t; + } + + T* PushArr( int count ) { + EnsureCapacity( _size+count ); + T* ret = &_mem[_size]; + _size += count; + return ret; + } + + T Pop() { + 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]; + } + + int Size() const { + return _size; + } + + int Capacity() const { + return _allocated; + } + + const T* Mem() const { + return _mem; + } + + T* Mem() { + return _mem; + } + +private: + void EnsureCapacity( int cap ) { + if ( cap > _allocated ) { + int newAllocated = cap * 2; + T* newMem = new T[newAllocated]; + memcpy( newMem, _mem, sizeof(T)*_size ); // warning: not using constructors, only works for PODs + if ( _mem != _pool ) { + delete [] _mem; + } + _mem = newMem; + _allocated = newAllocated; + } + } + + T* _mem; + T _pool[INIT]; + int _allocated; // objects allocated + int _size; // number objects in use +}; + + +/* + Parent virtual class of a pool for fast allocation + and deallocation of objects. +*/ +class MemPool +{ +public: + MemPool() {} + virtual ~MemPool() {} + + virtual int ItemSize() const = 0; + virtual void* Alloc() = 0; + virtual void Free( void* ) = 0; + virtual void SetTracked() = 0; +}; + + +/* + Template child class to create pools of the correct type. +*/ +template< int SIZE > +class MemPoolT : public MemPool +{ +public: + MemPoolT() : _root(0), _currentAllocs(0), _nAllocs(0), _maxAllocs(0), _nUntracked(0) {} + ~MemPoolT() { + // Delete the blocks. + for( int i=0; i<_blockPtrs.Size(); ++i ) { + delete _blockPtrs[i]; + } + } + + virtual int ItemSize() const { + return SIZE; + } + int CurrentAllocs() const { + return _currentAllocs; + } + + virtual void* Alloc() { + if ( !_root ) { + // Need a new block. + Block* block = new Block(); + _blockPtrs.Push( block ); + + for( int i=0; i<COUNT-1; ++i ) { + block->chunk[i].next = &block->chunk[i+1]; + } + block->chunk[COUNT-1].next = 0; + _root = block->chunk; + } + void* result = _root; + _root = _root->next; + + ++_currentAllocs; + if ( _currentAllocs > _maxAllocs ) { + _maxAllocs = _currentAllocs; + } + _nAllocs++; + _nUntracked++; + return result; + } + virtual void Free( void* mem ) { + if ( !mem ) { + return; + } + --_currentAllocs; + Chunk* chunk = (Chunk*)mem; +#ifdef DEBUG + memset( chunk, 0xfe, sizeof(Chunk) ); +#endif + chunk->next = _root; + _root = chunk; + } + void Trace( const char* name ) { + printf( "Mempool %s watermark=%d [%dk] current=%d size=%d nAlloc=%d blocks=%d\n", + name, _maxAllocs, _maxAllocs*SIZE/1024, _currentAllocs, SIZE, _nAllocs, _blockPtrs.Size() ); + } + + void SetTracked() { + _nUntracked--; + } + + int Untracked() const { + return _nUntracked; + } + + enum { COUNT = 1024/SIZE }; // Some compilers do not accept to use COUNT in private part if COUNT is private + +private: + union Chunk { + Chunk* next; + char mem[SIZE]; + }; + struct Block { + Chunk chunk[COUNT]; + }; + DynArray< Block*, 10 > _blockPtrs; + Chunk* _root; + + int _currentAllocs; + int _nAllocs; + int _maxAllocs; + int _nUntracked; +}; + + + +/** + Implements the interface to the "Visitor pattern" (see the Accept() method.) + If you call the Accept() method, it requires being passed a XMLVisitor + class to handle callbacks. For nodes that contain other nodes (Document, Element) + you will get called with a VisitEnter/VisitExit pair. Nodes that are always leafs + are simply called with Visit(). + + If you return 'true' from a Visit method, recursive parsing will continue. If you return + false, <b>no children of this node or its sibilings</b> will be visited. + + All flavors of Visit methods have a default implementation that returns 'true' (continue + visiting). You need to only override methods that are interesting to you. + + Generally Accept() is called on the TiXmlDocument, although all nodes support visiting. + + You should never change the document from a callback. + + @sa XMLNode::Accept() +*/ +class 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; + } +}; + + +/* + Utility functionality. +*/ +class XMLUtil +{ +public: + // 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 const char* SkipWhiteSpace( const char* p ) { + while( !IsUTF8Continuation(*p) && isspace( *reinterpret_cast<const unsigned char*>(p) ) ) { + ++p; + } + return p; + } + static char* SkipWhiteSpace( char* p ) { + while( !IsUTF8Continuation(*p) && isspace( *reinterpret_cast<unsigned char*>(p) ) ) { + ++p; + } + return p; + } + static bool IsWhiteSpace( char p ) { + return !IsUTF8Continuation(p) && isspace( static_cast<unsigned char>(p) ); + } + + inline static bool StringEqual( const char* p, const char* q, int nChar=INT_MAX ) { + int n = 0; + if ( p == q ) { + return true; + } + while( *p && *q && *p == *q && n<nChar ) { + ++p; + ++q; + ++n; + } + if ( (n == nChar) || ( *p == 0 && *q == 0 ) ) { + return true; + } + return false; + } + inline static int IsUTF8Continuation( const char p ) { + return p & 0x80; + } + inline static int IsAlphaNum( unsigned char anyByte ) { + return ( anyByte < 128 ) ? isalnum( anyByte ) : 1; + } + inline static int IsAlpha( unsigned char anyByte ) { + return ( anyByte < 128 ) ? isalpha( anyByte ) : 1; + } + + static const char* ReadBOM( const char* p, bool* hasBOM ); + // p is the starting location, + // the UTF-8 value of the entity will be placed in value, and length filled in. + static const char* GetCharacterRef( const char* p, char* value, int* length ); + static void ConvertUTF32ToUTF8( unsigned long input, char* output, int* length ); + + // converts primitive types to strings + static void ToStr( int v, char* buffer, int bufferSize ); + static void ToStr( unsigned v, char* buffer, int bufferSize ); + static void ToStr( bool v, char* buffer, int bufferSize ); + static void ToStr( float v, char* buffer, int bufferSize ); + static void ToStr( double v, char* buffer, int bufferSize ); + + // converts strings to primitive types + static bool ToInt( const char* str, int* value ); + static bool ToUnsigned( const char* str, unsigned* value ); + static bool ToBool( const char* str, bool* value ); + static bool ToFloat( const char* str, float* value ); + static bool ToDouble( const char* str, double* value ); +}; + + +/** XMLNode is a base class for every object that is in the + XML Document Object Model (DOM), except XMLAttributes. + Nodes have siblings, a parent, and children which can + be navigated. A node is always in a XMLDocument. + The type of a XMLNode can be queried, and it can + be cast to its more defined type. + + A XMLDocument allocates memory for all its Nodes. + When the XMLDocument gets deleted, all its Nodes + will also be deleted. + + @verbatim + A Document can contain: Element (container or leaf) + Comment (leaf) + Unknown (leaf) + Declaration( leaf ) + + An Element can contain: Element (container or leaf) + Text (leaf) + Attributes (not on tree) + Comment (leaf) + Unknown (leaf) + + @endverbatim +*/ +class XMLNode +{ + friend class XMLDocument; + friend class XMLElement; +public: + + /// Get the XMLDocument that owns this XMLNode. + const XMLDocument* GetDocument() const { + return _document; + } + /// Get the XMLDocument that owns this XMLNode. + XMLDocument* GetDocument() { + return _document; + } + + /// Safely cast to an Element, or null. + virtual XMLElement* ToElement() { + return 0; + } + /// Safely cast to Text, or null. + virtual XMLText* ToText() { + return 0; + } + /// Safely cast to a Comment, or null. + virtual XMLComment* ToComment() { + return 0; + } + /// Safely cast to a Document, or null. + virtual XMLDocument* ToDocument() { + return 0; + } + /// Safely cast to a Declaration, or null. + virtual XMLDeclaration* ToDeclaration() { + return 0; + } + /// Safely cast to an Unknown, or null. + virtual XMLUnknown* ToUnknown() { + return 0; + } + + virtual const XMLElement* ToElement() const { + return 0; + } + virtual const XMLText* ToText() const { + return 0; + } + virtual const XMLComment* ToComment() const { + return 0; + } + virtual const XMLDocument* ToDocument() const { + return 0; + } + virtual const XMLDeclaration* ToDeclaration() const { + return 0; + } + virtual const XMLUnknown* ToUnknown() const { + return 0; + } + + /** The meaning of 'value' changes for the specific type. + @verbatim + Document: empty + Element: name of the element + Comment: the comment text + Unknown: the tag contents + Text: the text string + @endverbatim + */ + const char* Value() const { + return _value.GetStr(); + } + + /** Set the Value of an XML node. + @sa Value() + */ + void SetValue( const char* val, bool staticMem=false ); + + /// Get the parent of this node on the DOM. + const XMLNode* Parent() const { + return _parent; + } + + XMLNode* Parent() { + return _parent; + } + + /// Returns true if this node has no children. + bool NoChildren() const { + return !_firstChild; + } + + /// Get the first child node, or null if none exists. + const XMLNode* FirstChild() const { + return _firstChild; + } + + XMLNode* FirstChild() { + return _firstChild; + } + + /** Get the first child element, or optionally the first child + element with the specified name. + */ + const XMLElement* FirstChildElement( const char* value=0 ) const; + + XMLElement* FirstChildElement( const char* value=0 ) { + return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->FirstChildElement( value )); + } + + /// Get the last child node, or null if none exists. + const XMLNode* LastChild() const { + return _lastChild; + } + + XMLNode* LastChild() { + return const_cast<XMLNode*>(const_cast<const XMLNode*>(this)->LastChild() ); + } + + /** Get the last child element or optionally the last child + element with the specified name. + */ + const XMLElement* LastChildElement( const char* value=0 ) const; + + XMLElement* LastChildElement( const char* value=0 ) { + return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->LastChildElement(value) ); + } + + /// 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 opitionally supplied name. + const XMLElement* PreviousSiblingElement( const char* value=0 ) const ; + + XMLElement* PreviousSiblingElement( const char* value=0 ) { + return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->PreviousSiblingElement( value ) ); + } + + /// 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 opitionally supplied name. + const XMLElement* NextSiblingElement( const char* value=0 ) const; + + XMLElement* NextSiblingElement( const char* value=0 ) { + return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->NextSiblingElement( value ) ); + } + + /** + Add a child node as the last (right) child. + */ + XMLNode* InsertEndChild( XMLNode* addThis ); + + XMLNode* LinkEndChild( XMLNode* addThis ) { + return InsertEndChild( addThis ); + } + /** + Add a child node as the first (left) child. + */ + XMLNode* InsertFirstChild( XMLNode* addThis ); + /** + Add a node after the specified child node. + */ + XMLNode* InsertAfterChild( XMLNode* afterThis, XMLNode* addThis ); + + /** + Delete all the children of this node. + */ + void DeleteChildren(); + + /** + Delete a child of this node. + */ + void DeleteChild( XMLNode* node ); + + /** + Make a copy of this node, but not its children. + You may pass in a Document pointer that will be + the owner of the new Node. If the 'document' is + null, then the node returned will be allocated + from the current Document. (this->GetDocument()) + + Note: if called on a XMLDocument, this will return null. + */ + virtual XMLNode* ShallowClone( XMLDocument* document ) const = 0; + + /** + Test if 2 nodes are the same, but don't test children. + The 2 nodes do not need to be in the same Document. + + Note: if called on a XMLDocument, this will return false. + */ + virtual bool ShallowEqual( const XMLNode* compare ) const = 0; + + /** Accept a hierarchical visit of the nodes in the TinyXML DOM. Every node in the + XML tree will be conditionally visited and the host will be called back + via the TiXmlVisitor interface. + + This is essentially a SAX interface for TinyXML. (Note however it doesn't re-parse + the XML for the callbacks, so the performance of TinyXML is unchanged by using this + interface versus any other.) + + The interface has been based on ideas from: + + - http://www.saxproject.org/ + - http://c2.com/cgi/wiki?HierarchicalVisitorPattern + + Which are both good references for "visiting". + + An example of using Accept(): + @verbatim + TiXmlPrinter printer; + tinyxmlDoc.Accept( &printer ); + const char* xmlcstr = printer.CStr(); + @endverbatim + */ + virtual bool Accept( XMLVisitor* visitor ) const = 0; + + // internal + virtual char* ParseDeep( char*, StrPair* ); + +protected: + XMLNode( XMLDocument* ); + virtual ~XMLNode(); + XMLNode( const XMLNode& ); // not supported + XMLNode& operator=( const XMLNode& ); // not supported + + XMLDocument* _document; + XMLNode* _parent; + mutable StrPair _value; + + XMLNode* _firstChild; + XMLNode* _lastChild; + + XMLNode* _prev; + XMLNode* _next; + +private: + MemPool* _memPool; + void Unlink( XMLNode* child ); +}; + + +/** XML text. + + Note that a text node can have child element nodes, for example: + @verbatim + <root>This is <b>bold</b></root> + @endverbatim + + A text node can have 2 ways to output the next. "normal" output + and CDATA. It will default to the mode it was parsed from the XML file and + you generally want to leave it alone, but you can change the output mode with + SetCDATA() and query it with CDATA(). +*/ +class XMLText : public XMLNode +{ + friend class XMLBase; + 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; + } + + char* ParseDeep( char*, StrPair* endTag ); + virtual XMLNode* ShallowClone( XMLDocument* document ) const; + virtual bool ShallowEqual( const XMLNode* compare ) const; + +protected: + XMLText( XMLDocument* doc ) : XMLNode( doc ), _isCData( false ) {} + virtual ~XMLText() {} + XMLText( const XMLText& ); // not supported + XMLText& operator=( const XMLText& ); // not supported + +private: + bool _isCData; +}; + + +/** An XML Comment. */ +class 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; + + char* ParseDeep( char*, StrPair* endTag ); + virtual XMLNode* ShallowClone( XMLDocument* document ) const; + virtual bool ShallowEqual( const XMLNode* compare ) const; + +protected: + XMLComment( XMLDocument* doc ); + virtual ~XMLComment(); + XMLComment( const XMLComment& ); // not supported + XMLComment& operator=( const XMLComment& ); // not supported + +private: +}; + + +/** In correct XML the declaration is the first entry in the file. + @verbatim + <?xml version="1.0" standalone="yes"?> + @endverbatim + + TinyXML2 will happily read or write files without a declaration, + however. + + The text of the declaration isn't interpreted. It is parsed + and written as a string. +*/ +class 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; + + char* ParseDeep( char*, StrPair* endTag ); + virtual XMLNode* ShallowClone( XMLDocument* document ) const; + virtual bool ShallowEqual( const XMLNode* compare ) const; + +protected: + XMLDeclaration( XMLDocument* doc ); + virtual ~XMLDeclaration(); + XMLDeclaration( const XMLDeclaration& ); // not supported + XMLDeclaration& operator=( const XMLDeclaration& ); // not supported +}; + + +/** Any tag that tinyXml doesn't recognize is saved as an + unknown. It is a tag of text, but should not be modified. + It will be written back to the XML, unchanged, when the file + is saved. + + DTD tags get thrown into TiXmlUnknowns. +*/ +class 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; + + char* ParseDeep( char*, StrPair* endTag ); + virtual XMLNode* ShallowClone( XMLDocument* document ) const; + virtual bool ShallowEqual( const XMLNode* compare ) const; + +protected: + XMLUnknown( XMLDocument* doc ); + virtual ~XMLUnknown(); + XMLUnknown( const XMLUnknown& ); // not supported + XMLUnknown& operator=( const XMLUnknown& ); // not supported +}; + + +enum XMLError { + XML_NO_ERROR = 0, + XML_SUCCESS = 0, + + XML_NO_ATTRIBUTE, + XML_WRONG_ATTRIBUTE_TYPE, + + XML_ERROR_FILE_NOT_FOUND, + XML_ERROR_FILE_COULD_NOT_BE_OPENED, + XML_ERROR_FILE_READ_ERROR, + XML_ERROR_ELEMENT_MISMATCH, + XML_ERROR_PARSING_ELEMENT, + XML_ERROR_PARSING_ATTRIBUTE, + XML_ERROR_IDENTIFYING_TAG, + XML_ERROR_PARSING_TEXT, + XML_ERROR_PARSING_CDATA, + XML_ERROR_PARSING_COMMENT, + XML_ERROR_PARSING_DECLARATION, + XML_ERROR_PARSING_UNKNOWN, + XML_ERROR_EMPTY_DOCUMENT, + XML_ERROR_MISMATCHED_ELEMENT, + XML_ERROR_PARSING, + + XML_CAN_NOT_CONVERT_TEXT, + XML_NO_TEXT_NODE +}; + + +/** An attribute is a name-value pair. Elements have an arbitrary + number of attributes, each with a unique name. + + @note The attributes are not XMLNodes. You may only query the + Next() attribute in a list. +*/ +class XMLAttribute +{ + friend class XMLElement; +public: + /// The name of the attribute. + const char* Name() const { + return _name.GetStr(); + } + /// The value of the attribute. + const char* Value() const { + return _value.GetStr(); + } + /// The next attribute in the list. + const XMLAttribute* Next() const { + return _next; + } + + /** IntAttribute 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 QueryIntAttribute() if you need error checking. + */ + int IntValue() const { + int i=0; + QueryIntValue( &i ); + return i; + } + /// Query as an unsigned integer. See IntAttribute() + unsigned UnsignedValue() const { + unsigned i=0; + QueryUnsignedValue( &i ); + return i; + } + /// Query as a boolean. See IntAttribute() + bool BoolValue() const { + bool b=false; + QueryBoolValue( &b ); + return b; + } + /// Query as a double. See IntAttribute() + double DoubleValue() const { + double d=0; + QueryDoubleValue( &d ); + return d; + } + /// Query as a float. See IntAttribute() + float FloatValue() const { + float f=0; + QueryFloatValue( &f ); + return f; + } + + /** QueryIntAttribute interprets the attribute as an integer, and returns the value + in the provided paremeter. The function will return XML_NO_ERROR on success, + and XML_WRONG_ATTRIBUTE_TYPE if the conversion is not successful. + */ + XMLError QueryIntValue( int* value ) const; + /// See QueryIntAttribute + XMLError QueryUnsignedValue( unsigned int* value ) const; + /// See QueryIntAttribute + XMLError QueryBoolValue( bool* value ) const; + /// See QueryIntAttribute + XMLError QueryDoubleValue( double* value ) const; + /// See QueryIntAttribute + XMLError QueryFloatValue( float* value ) const; + + /// Set the attribute to a string value. + void SetAttribute( const char* value ); + /// Set the attribute to value. + void SetAttribute( int value ); + /// Set the attribute to value. + void SetAttribute( unsigned value ); + /// Set the attribute to value. + void SetAttribute( bool value ); + /// Set the attribute to value. + void SetAttribute( double value ); + /// Set the attribute to value. + void SetAttribute( float value ); + +private: + enum { BUF_SIZE = 200 }; + + XMLAttribute() : _next( 0 ) {} + virtual ~XMLAttribute() {} + + XMLAttribute( const XMLAttribute& ); // not supported + void operator=( const XMLAttribute& ); // not supported + void SetName( const char* name ); + + char* ParseDeep( char* p, bool processEntities ); + + mutable StrPair _name; + mutable StrPair _value; + XMLAttribute* _next; + MemPool* _memPool; +}; + + +/** The element is a container class. It has a value, the element name, + and can contain other elements, text, comments, and unknowns. + Elements also contain an arbitrary number of attributes. +*/ +class XMLElement : public XMLNode +{ + friend class XMLBase; + friend class XMLDocument; +public: + /// Get the name of an element (which is the Value() of the node.) + const char* Name() const { + return Value(); + } + /// Set the name of the element. + void SetName( const char* str, bool staticMem=false ) { + SetValue( str, staticMem ); + } + + virtual XMLElement* ToElement() { + return this; + } + virtual const XMLElement* ToElement() const { + return this; + } + virtual bool Accept( XMLVisitor* visitor ) const; + + /** Given an attribute name, Attribute() returns the value + for the attribute of that name, or null if none + exists. For example: + + @verbatim + const char* value = ele->Attribute( "foo" ); + @endverbatim + + The 'value' parameter is normally null. However, if specified, + the attribute will only be returned if the 'name' and 'value' + match. This allow you to write code: + + @verbatim + if ( ele->Attribute( "foo", "bar" ) ) callFooIsBar(); + @endverbatim + + rather than: + @verbatim + if ( ele->Attribute( "foo" ) ) { + if ( strcmp( ele->Attribute( "foo" ), "bar" ) == 0 ) callFooIsBar(); + } + @endverbatim + */ + const char* Attribute( const char* name, const char* value=0 ) const; + + /** Given an attribute name, IntAttribute() returns the value + of the attribute interpreted as an integer. 0 will be + returned if there is an error. For a method with error + checking, see QueryIntAttribute() + */ + int IntAttribute( const char* name ) const { + int i=0; + QueryIntAttribute( name, &i ); + return i; + } + /// See IntAttribute() + unsigned UnsignedAttribute( const char* name ) const { + unsigned i=0; + QueryUnsignedAttribute( name, &i ); + return i; + } + /// See IntAttribute() + bool BoolAttribute( const char* name ) const { + bool b=false; + QueryBoolAttribute( name, &b ); + return b; + } + /// See IntAttribute() + double DoubleAttribute( const char* name ) const { + double d=0; + QueryDoubleAttribute( name, &d ); + return d; + } + /// See IntAttribute() + float FloatAttribute( const char* name ) const { + float f=0; + QueryFloatAttribute( name, &f ); + return f; + } + + /** Given an attribute name, QueryIntAttribute() returns + XML_NO_ERROR, XML_WRONG_ATTRIBUTE_TYPE if the conversion + can't be performed, or XML_NO_ATTRIBUTE if the attribute + doesn't exist. If successful, the result of the conversion + will be written to 'value'. If not successful, nothing will + be written to 'value'. This allows you to provide default + value: + + @verbatim + int value = 10; + QueryIntAttribute( "foo", &value ); // if "foo" isn't found, value will still be 10 + @endverbatim + */ + XMLError QueryIntAttribute( const char* name, int* value ) const { + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return XML_NO_ATTRIBUTE; + } + return a->QueryIntValue( value ); + } + /// See QueryIntAttribute() + XMLError QueryUnsignedAttribute( const char* name, unsigned int* value ) const { + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return XML_NO_ATTRIBUTE; + } + return a->QueryUnsignedValue( value ); + } + /// See QueryIntAttribute() + XMLError QueryBoolAttribute( const char* name, bool* value ) const { + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return XML_NO_ATTRIBUTE; + } + return a->QueryBoolValue( value ); + } + /// See QueryIntAttribute() + XMLError QueryDoubleAttribute( const char* name, double* value ) const { + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return XML_NO_ATTRIBUTE; + } + return a->QueryDoubleValue( value ); + } + /// See QueryIntAttribute() + XMLError QueryFloatAttribute( const char* name, float* value ) const { + const XMLAttribute* a = FindAttribute( name ); + if ( !a ) { + return XML_NO_ATTRIBUTE; + } + return a->QueryFloatValue( value ); + } + + /// Sets the named attribute to value. + void SetAttribute( const char* name, const char* value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + /// Sets the named attribute to value. + void SetAttribute( const char* name, int value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + /// Sets the named attribute to value. + void SetAttribute( const char* name, unsigned value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + /// Sets the named attribute to value. + void SetAttribute( const char* name, bool value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + /// Sets the named attribute to value. + void SetAttribute( const char* name, double value ) { + XMLAttribute* a = FindOrCreateAttribute( name ); + a->SetAttribute( value ); + } + + /** + Delete an attribute. + */ + void DeleteAttribute( const char* name ); + + /// Return the first attribute in the list. + const XMLAttribute* FirstAttribute() const { + return _rootAttribute; + } + /// Query a specific attribute in the list. + const XMLAttribute* FindAttribute( const char* name ) const; + + /** Convenience function for easy access to the text inside an element. Although easy + and concise, GetText() is limited compared to getting the TiXmlText child + and accessing it directly. + + If the first child of 'this' is a TiXmlText, 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 from + this XML: + @verbatim + <foo><b>This is text</b></foo> + @endverbatim + + then the value of str would be null. The first child node isn't a text node, it is + another element. From this XML: + @verbatim + <foo>This is <b>text</b></foo> + @endverbatim + GetText() will return "This is ". + */ + const char* GetText() const; + + /** + Convenience method to query the value of a child text node. This is probably best + shown by example. Given you have a document is this form: + @verbatim + <point> + <x>1</x> + <y>1.4</y> + </point> + @endverbatim + + The QueryIntText() and similar functions provide a safe and easier way to get to the + "value" of x and y. + + @verbatim + int x = 0; + float y = 0; // types of x and y are contrived for example + const XMLElement* xElement = pointElement->FirstChildElement( "x" ); + const XMLElement* yElement = pointElement->FirstChildElement( "y" ); + xElement->QueryIntText( &x ); + yElement->QueryFloatText( &y ); + @endverbatim + + @returns XML_SUCCESS (0) on success, XML_CAN_NOT_CONVERT_TEXT if the text cannot be converted + to the requested type, and XML_NO_TEXT_NODE if there is no child text to query. + + */ + XMLError QueryIntText( int* ival ) const; + /// See QueryIntText() + XMLError QueryUnsignedText( unsigned* uval ) const; + /// See QueryIntText() + XMLError QueryBoolText( bool* bval ) const; + /// See QueryIntText() + XMLError QueryDoubleText( double* dval ) const; + /// See QueryIntText() + XMLError QueryFloatText( float* fval ) const; + + // internal: + enum { + OPEN, // <foo> + CLOSED, // <foo/> + CLOSING // </foo> + }; + int ClosingType() const { + return _closingType; + } + char* ParseDeep( char* p, StrPair* endTag ); + virtual XMLNode* ShallowClone( XMLDocument* document ) const; + virtual bool ShallowEqual( const XMLNode* compare ) const; + +private: + XMLElement( XMLDocument* doc ); + virtual ~XMLElement(); + XMLElement( const XMLElement& ); // not supported + void operator=( const XMLElement& ); // not supported + + XMLAttribute* FindAttribute( const char* name ); + XMLAttribute* FindOrCreateAttribute( const char* name ); + //void LinkAttribute( XMLAttribute* attrib ); + char* ParseAttributes( char* p ); + + int _closingType; + // The attribute list is ordered; there is no 'lastAttribute' + // because the list needs to be scanned for dupes before adding + // a new attribute. + XMLAttribute* _rootAttribute; +}; + + +enum Whitespace { + PRESERVE_WHITESPACE, + COLLAPSE_WHITESPACE +}; + + +/** A Document binds together all the functionality. + It can be saved, loaded, and printed to the screen. + All Nodes are connected and allocated to a Document. + If the Document is deleted, all its Nodes are also deleted. +*/ +class XMLDocument : public XMLNode +{ + friend class XMLElement; +public: + /// constructor + XMLDocument( bool processEntities = true, Whitespace = PRESERVE_WHITESPACE ); + ~XMLDocument(); + + virtual XMLDocument* ToDocument() { + return this; + } + virtual const XMLDocument* ToDocument() const { + return this; + } + + /** + Parse an XML file from a character string. + Returns XML_NO_ERROR (0) on success, or + an errorID. + + You may optionally pass in the 'nBytes', which is + the number of bytes which will be parsed. If not + specified, TinyXML will assume 'xml' points to a + null terminated string. + */ + XMLError Parse( const char* xml, size_t nBytes=(size_t)(-1) ); + + /** + Load an XML file from disk. + Returns XML_NO_ERROR (0) on success, or + an errorID. + */ + XMLError LoadFile( const char* filename ); + + /** + Load an XML file from disk. You are responsible + for providing and closing the FILE*. + + Returns XML_NO_ERROR (0) on success, or + an errorID. + */ + XMLError LoadFile( FILE* ); + + /** + Save the XML file to disk. + Returns XML_NO_ERROR (0) on success, or + an errorID. + */ + XMLError SaveFile( const char* filename, bool compact = false ); + + /** + Save the XML file to disk. You are responsible + for providing and closing the FILE*. + + Returns XML_NO_ERROR (0) on success, or + an errorID. + */ + XMLError SaveFile( FILE* fp, bool compact = false ); + + bool ProcessEntities() const { + return _processEntities; + } + Whitespace WhitespaceMode() const { + return _whitespace; + } + + /** + Returns true if this document has a leading Byte Order Mark of UTF8. + */ + bool HasBOM() const { + return _writeBOM; + } + /** Sets whether to write the BOM when writing the file. + */ + void SetBOM( bool useBOM ) { + _writeBOM = useBOM; + } + + /** Return the root element of DOM. Equivalent to FirstChildElement(). + To get the first node, use FirstChild(). + */ + XMLElement* RootElement() { + return FirstChildElement(); + } + const XMLElement* RootElement() const { + return FirstChildElement(); + } + + /** Print the Document. If the Printer is not provided, it will + print to stdout. If you provide Printer, this can print to a file: + @verbatim + XMLPrinter printer( fp ); + doc.Print( &printer ); + @endverbatim + + Or you can use a printer to print to memory: + @verbatim + XMLPrinter printer; + doc->Print( &printer ); + // printer.CStr() has a const char* to the XML + @endverbatim + */ + void Print( XMLPrinter* streamer=0 ); + virtual bool Accept( XMLVisitor* visitor ) const; + + /** + Create a new Element associated with + this Document. The memory for the Element + is managed by the Document. + */ + XMLElement* NewElement( const char* name ); + /** + Create a new Comment associated with + this Document. The memory for the Comment + is managed by the Document. + */ + XMLComment* NewComment( const char* comment ); + /** + Create a new Text associated with + this Document. The memory for the Text + is managed by the Document. + */ + XMLText* NewText( const char* text ); + /** + Create a new Declaration associated with + this Document. The memory for the object + is managed by the Document. + + If the 'text' param is null, the standard + declaration is used.: + @verbatim + <?xml version="1.0" encoding="UTF-8"?> + @endverbatim + */ + XMLDeclaration* NewDeclaration( const char* text=0 ); + /** + Create a new Unknown associated with + this Document. The memory forthe object + is managed by the Document. + */ + XMLUnknown* NewUnknown( const char* text ); + + /** + Delete a node associated with this document. + It will be unlinked from the DOM. + */ + void DeleteNode( XMLNode* node ) { + node->_parent->DeleteChild( node ); + } + + void SetError( XMLError error, const char* str1, const char* str2 ); + + /// Return true if there was an error parsing the document. + bool Error() const { + return _errorID != XML_NO_ERROR; + } + /// Return the errorID. + XMLError ErrorID() const { + return _errorID; + } + /// Return a possibly helpful diagnostic location or string. + const char* GetErrorStr1() const { + return _errorStr1; + } + /// Return a possibly helpful secondary diagnostic location or string. + const char* GetErrorStr2() const { + return _errorStr2; + } + /// If there is an error, print it to stdout. + void PrintError() const; + + // internal + char* Identify( char* p, XMLNode** node ); + + virtual XMLNode* ShallowClone( XMLDocument* /*document*/ ) const { + return 0; + } + virtual bool ShallowEqual( const XMLNode* /*compare*/ ) const { + return false; + } + +private: + XMLDocument( const XMLDocument& ); // not supported + void operator=( const XMLDocument& ); // not supported + void InitDocument(); + + bool _writeBOM; + bool _processEntities; + XMLError _errorID; + Whitespace _whitespace; + const char* _errorStr1; + const char* _errorStr2; + char* _charBuffer; + + MemPoolT< sizeof(XMLElement) > _elementPool; + MemPoolT< sizeof(XMLAttribute) > _attributePool; + MemPoolT< sizeof(XMLText) > _textPool; + MemPoolT< sizeof(XMLComment) > _commentPool; +}; + + +/** + A XMLHandle is a class that wraps a node pointer with null checks; this is + an incredibly useful thing. Note that XMLHandle is not part of the TinyXML + DOM structure. It is a separate utility class. + + Take an example: + @verbatim + <Document> + <Element attributeA = "valueA"> + <Child attributeB = "value1" /> + <Child attributeB = "value2" /> + </Element> + </Document> + @endverbatim + + Assuming you want the value of "attributeB" in the 2nd "Child" element, it's very + easy to write a *lot* of code that looks like: + + @verbatim + XMLElement* root = document.FirstChildElement( "Document" ); + if ( root ) + { + XMLElement* element = root->FirstChildElement( "Element" ); + if ( element ) + { + XMLElement* child = element->FirstChildElement( "Child" ); + if ( child ) + { + XMLElement* child2 = child->NextSiblingElement( "Child" ); + if ( child2 ) + { + // Finally do something useful. + @endverbatim + + And that doesn't even cover "else" cases. XMLHandle addresses the verbosity + of such code. A XMLHandle checks for null pointers so it is perfectly safe + and correct to use: + + @verbatim + XMLHandle docHandle( &document ); + XMLElement* child2 = docHandle.FirstChild( "Document" ).FirstChild( "Element" ).FirstChild().NextSibling().ToElement(); + if ( child2 ) + { + // do something useful + @endverbatim + + Which is MUCH more concise and useful. + + It is also safe to copy handles - internally they are nothing more than node pointers. + @verbatim + XMLHandle handleCopy = handle; + @endverbatim + + See also XMLConstHandle, which is the same as XMLHandle, but operates on const objects. +*/ +class XMLHandle +{ +public: + /// Create a handle from any node (at any depth of the tree.) This can be a null pointer. + XMLHandle( XMLNode* node ) { + _node = node; + } + /// Create a handle from a node. + XMLHandle( XMLNode& node ) { + _node = &node; + } + /// Copy constructor + XMLHandle( const XMLHandle& ref ) { + _node = ref._node; + } + /// Assignment + XMLHandle& operator=( const XMLHandle& ref ) { + _node = ref._node; + return *this; + } + + /// Get the first child of this handle. + XMLHandle FirstChild() { + return XMLHandle( _node ? _node->FirstChild() : 0 ); + } + /// Get the first child element of this handle. + XMLHandle FirstChildElement( const char* value=0 ) { + return XMLHandle( _node ? _node->FirstChildElement( value ) : 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* _value=0 ) { + return XMLHandle( _node ? _node->LastChildElement( _value ) : 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* _value=0 ) { + return XMLHandle( _node ? _node->PreviousSiblingElement( _value ) : 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* _value=0 ) { + return XMLHandle( _node ? _node->NextSiblingElement( _value ) : 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() ) ? _node->ToElement() : 0 ); + } + /// Safe cast to XMLText. This can return null. + XMLText* ToText() { + return ( ( _node && _node->ToText() ) ? _node->ToText() : 0 ); + } + /// Safe cast to XMLUnknown. This can return null. + XMLUnknown* ToUnknown() { + return ( ( _node && _node->ToUnknown() ) ? _node->ToUnknown() : 0 ); + } + /// Safe cast to XMLDeclaration. This can return null. + XMLDeclaration* ToDeclaration() { + return ( ( _node && _node->ToDeclaration() ) ? _node->ToDeclaration() : 0 ); + } + +private: + XMLNode* _node; +}; + + +/** + A variant of the XMLHandle class for working with const XMLNodes and Documents. It is the + same in all regards, except for the 'const' qualifiers. See XMLHandle for API. +*/ +class XMLConstHandle +{ +public: + XMLConstHandle( const XMLNode* node ) { + _node = node; + } + XMLConstHandle( const XMLNode& node ) { + _node = &node; + } + XMLConstHandle( const XMLConstHandle& ref ) { + _node = ref._node; + } + + XMLConstHandle& operator=( const XMLConstHandle& ref ) { + _node = ref._node; + return *this; + } + + const XMLConstHandle FirstChild() const { + return XMLConstHandle( _node ? _node->FirstChild() : 0 ); + } + const XMLConstHandle FirstChildElement( const char* value=0 ) const { + return XMLConstHandle( _node ? _node->FirstChildElement( value ) : 0 ); + } + const XMLConstHandle LastChild() const { + return XMLConstHandle( _node ? _node->LastChild() : 0 ); + } + const XMLConstHandle LastChildElement( const char* _value=0 ) const { + return XMLConstHandle( _node ? _node->LastChildElement( _value ) : 0 ); + } + const XMLConstHandle PreviousSibling() const { + return XMLConstHandle( _node ? _node->PreviousSibling() : 0 ); + } + const XMLConstHandle PreviousSiblingElement( const char* _value=0 ) const { + return XMLConstHandle( _node ? _node->PreviousSiblingElement( _value ) : 0 ); + } + const XMLConstHandle NextSibling() const { + return XMLConstHandle( _node ? _node->NextSibling() : 0 ); + } + const XMLConstHandle NextSiblingElement( const char* _value=0 ) const { + return XMLConstHandle( _node ? _node->NextSiblingElement( _value ) : 0 ); + } + + + const XMLNode* ToNode() const { + return _node; + } + const XMLElement* ToElement() const { + return ( ( _node && _node->ToElement() ) ? _node->ToElement() : 0 ); + } + const XMLText* ToText() const { + return ( ( _node && _node->ToText() ) ? _node->ToText() : 0 ); + } + const XMLUnknown* ToUnknown() const { + return ( ( _node && _node->ToUnknown() ) ? _node->ToUnknown() : 0 ); + } + const XMLDeclaration* ToDeclaration() const { + return ( ( _node && _node->ToDeclaration() ) ? _node->ToDeclaration() : 0 ); + } + +private: + const XMLNode* _node; +}; + + +/** + Printing functionality. The XMLPrinter gives you more + options than the XMLDocument::Print() method. + + It can: + -# Print to memory. + -# Print to a file you provide. + -# Print XML without a XMLDocument. + + Print to Memory + + @verbatim + XMLPrinter printer; + doc->Print( &printer ); + SomeFunction( printer.CStr() ); + @endverbatim + + Print to a File + + You provide the file pointer. + @verbatim + XMLPrinter printer( fp ); + doc.Print( &printer ); + @endverbatim + + Print without a XMLDocument + + When loading, an XML parser is very useful. However, sometimes + when saving, it just gets in the way. The code is often set up + for streaming, and constructing the DOM is just overhead. + + The Printer supports the streaming case. The following code + prints out a trivially simple XML file without ever creating + an XML document. + + @verbatim + XMLPrinter printer( fp ); + printer.OpenElement( "foo" ); + printer.PushAttribute( "foo", "bar" ); + printer.CloseElement(); + @endverbatim +*/ +class XMLPrinter : public XMLVisitor +{ +public: + /** Construct the printer. If the FILE* is specified, + this will print to the FILE. Else it will print + to memory, and the result is available in CStr(). + If 'compact' is set to true, then output is created + with only required whitespace and newlines. + */ + XMLPrinter( FILE* file=0, bool compact = false ); + ~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 ); + /// If streaming, add an attribute to an open element. + void PushAttribute( const char* name, const char* value ); + void PushAttribute( const char* name, int value ); + void PushAttribute( const char* name, unsigned value ); + void PushAttribute( const char* name, bool value ); + void PushAttribute( const char* name, double value ); + /// If streaming, close the Element. + void CloseElement(); + + /// Add a text node. + void PushText( const char* text, bool cdata=false ); + /// Add a text node from an integer. + void PushText( int value ); + /// Add a text node from an unsigned. + void PushText( unsigned value ); + /// Add a text node from a bool. + void PushText( bool value ); + /// Add a text node from a float. + void PushText( float value ); + /// Add a text node from a double. + void PushText( double value ); + + /// Add a comment + void PushComment( const char* comment ); + + void PushDeclaration( const char* value ); + void PushUnknown( const char* value ); + + virtual bool VisitEnter( const XMLDocument& /*doc*/ ); + virtual bool VisitExit( const XMLDocument& /*doc*/ ) { + return true; + } + + virtual bool VisitEnter( const XMLElement& element, const XMLAttribute* attribute ); + virtual bool VisitExit( const XMLElement& element ); + + virtual bool Visit( const XMLText& text ); + virtual bool Visit( const XMLComment& comment ); + virtual bool Visit( const XMLDeclaration& declaration ); + virtual bool Visit( const XMLUnknown& unknown ); + + /** + If in print to memory mode, return a pointer to + the XML file in memory. + */ + const char* CStr() const { + return _buffer.Mem(); + } + /** + If in print to memory mode, return the size + of the XML file in memory. (Note the size returned + includes the terminating null.) + */ + int CStrSize() const { + return _buffer.Size(); + } + +private: + void SealElement(); + void PrintSpace( int depth ); + void PrintString( const char*, bool restrictedEntitySet ); // prints out, after detecting entities. + void Print( const char* format, ... ); + + bool _elementJustOpened; + 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< const char*, 10 > _stack; + DynArray< char, 20 > _buffer; +#ifdef _MSC_VER + DynArray< char, 20 > _accumulator; +#endif +}; + + +} // tinyxml2 + + +#endif // TINYXML2_INCLUDED |