/*

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

#ifdef _MSC_VER

# pragma warning(push)

# pragma warning(disable: 4251)

#endif

#ifdef _WIN32

# ifdef TINYXML2_EXPORT

# define TINYXML2_LIB __declspec(dllexport)

# elif defined(TINYXML2_IMPORT)

# define TINYXML2_LIB __declspec(dllimport)

# else

# define TINYXML2_LIB

# endif

#else

# define TINYXML2_LIB

#endif

#if defined(DEBUG)

# if defined(_MSC_VER)

# 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 ) && (!defined WINCE)

// 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

#elif defined WINCE

#define TIXML_SNPRINTF _snprintf

#define TIXML_SSCANF sscanf

#else

// GCC version 3 and higher

//#warning( "Using sn* functions." )

#define TIXML_SNPRINTF snprintf

#define TIXML_SSCANF sscanf

#endif

/* Versioning, past 1.0.14:

http://semver.org/

*/

static const int TIXML2_MAJOR_VERSION = 2;

static const int TIXML2_MINOR_VERSION = 2;

static const int TIXML2_PATCH_VERSION = 0;

namespace tinyxml2

{

class XMLDocument;

class XMLElement;

class XMLAttribute;

class XMLComment;

class XMLText;

class XMLDeclaration;

class XMLUnknown;

class XMLPrinter;

/*

A class that wraps strings. Normally stores the start and end

pointers into the XML file itself, and will apply normalization

and entity translation if actually read. Can also store (and memory

manage) a traditional char[]

*/

class StrPair

{

public:

enum {

NEEDS_ENTITY_PROCESSING = 0x01,

NEEDS_NEWLINE_NORMALIZATION = 0x02,

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 Clear() {

_size = 0;

}

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];

}

const T& PeekTop() const {

TIXMLASSERT( _size > 0 );

return _mem[ _size - 1];

}

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 = static_cast<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;

}

// This number is perf sensitive. 4k seems like a good tradeoff on my machine.

// The test file is large, 170k.

// Release: VS2010 gcc(no opt)

// 1k: 4000

// 2k: 4000

// 4k: 3900 21000

// 16k: 5200

// 32k: 4300

// 64k: 4000 21000

enum { COUNT = (4*1024)/SIZE }; // Some compilers do not accept to use COUNT in private part if COUNT is private

private:

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 siblings</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 XMLDocument, although all nodes support visiting.

You should never change the document from a callback.

@sa XMLNode::Accept()

*/

class TINYXML2_LIB XMLVisitor

{

public:

virtual ~XMLVisitor() {}

/// Visit a document.

virtual bool VisitEnter( const XMLDocument& /*doc*/ ) {

return true;

}

/// Visit a document.

virtual bool VisitExit( const XMLDocument& /*doc*/ ) {

return true;

}

/// Visit an element.

virtual bool VisitEnter( const XMLElement& /*element*/, const XMLAttribute* /*firstAttribute*/ ) {

return true;

}

/// Visit an element.

virtual bool VisitExit( const XMLElement& /*element*/ ) {

return true;

}

/// Visit a declaration.

virtual bool Visit( const XMLDeclaration& /*declaration*/ ) {

return true;

}

/// Visit a text node.

virtual bool Visit( const XMLText& /*text*/ ) {

return true;

}

/// Visit a comment node.

virtual bool Visit( const XMLComment& /*comment*/ ) {

return true;

}

/// Visit an unknown node.

virtual bool Visit( const XMLUnknown& /*unknown*/ ) {

return true;

}

};

// WARNING: must match XMLErrorNames[]

enum XMLError {

XML_SUCCESS = 0,

XML_NO_ERROR = 0,

XML_NO_ATTRIBUTE,

XML_WRONG_ATTRIBUTE_TYPE,

XML_ERROR_FILE_NOT_FOUND,

XML_ERROR_FILE_COULD_NOT_BE_OPENED,

XML_ERROR_FILE_READ_ERROR,

XML_ERROR_ELEMENT_MISMATCH,

XML_ERROR_PARSING_ELEMENT,

XML_ERROR_PARSING_ATTRIBUTE,

XML_ERROR_IDENTIFYING_TAG,

XML_ERROR_PARSING_TEXT,

XML_ERROR_PARSING_CDATA,

XML_ERROR_PARSING_COMMENT,

XML_ERROR_PARSING_DECLARATION,

XML_ERROR_PARSING_UNKNOWN,

XML_ERROR_EMPTY_DOCUMENT,

XML_ERROR_MISMATCHED_ELEMENT,

XML_ERROR_PARSING,

XML_CAN_NOT_CONVERT_TEXT,

XML_NO_TEXT_NODE,

XML_ERROR_COUNT

};

/*

Utility functionality.

*/

class XMLUtil

{

public:

// 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 ) {

return const_cast<char*>( SkipWhiteSpace( const_cast<const char*>(p) ) );

}

static bool IsWhiteSpace( char p ) {

return !IsUTF8Continuation(p) && isspace( static_cast<unsigned char>(p) );

}

inline static bool IsNameStartChar( unsigned char ch ) {

return ( ( ch < 128 ) ? isalpha( ch ) : 1 )

|| ch == ':'

|| ch == '_';

}

inline static bool IsNameChar( unsigned char ch ) {

return IsNameStartChar( ch )

|| isdigit( ch )

|| ch == '.'

|| ch == '-';

}

inline static bool StringEqual( const char* p, const char* q, int nChar=INT_MAX ) {

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 bool IsUTF8Continuation( const char p ) {

return ( p & 0x80 ) != 0;

}

static const char* ReadBOM( const char* p, bool* hasBOM );

// p is the starting location,

// the UTF-8 value of the entity will be placed in value, and length filled in.

static const char* GetCharacterRef( const char* p, char* value, int* length );

static void ConvertUTF32ToUTF8( unsigned long input, char* output, int* length );

// converts primitive types to strings

static void ToStr( int v, char* buffer, int bufferSize );

static void ToStr( unsigned v, char* buffer, int bufferSize );

static void ToStr( bool v, char* buffer, int bufferSize );

static void ToStr( float v, char* buffer, int bufferSize );

static void ToStr( double v, char* buffer, int bufferSize );

// converts strings to primitive types

static bool ToInt( const char* str, int* value );

static bool ToUnsigned( const char* str, unsigned* value );

static bool ToBool( const char* str, bool* value );

static bool ToFloat( const char* str, float* value );

static bool ToDouble( const char* str, double* value );

};

/** XMLNode is a base class for every object that is in the

XML Document Object Model (DOM), except XMLAttributes.

Nodes have siblings, a parent, and children which can

be navigated. A node is always in a XMLDocument.

The type of a XMLNode can be queried, and it can

be cast to its more defined type.

A XMLDocument allocates memory for all its Nodes.

When the XMLDocument gets deleted, all its Nodes

will also be deleted.

@verbatim

A Document can contain: Element (container or leaf)

Comment (leaf)

Unknown (leaf)

Declaration( leaf )

An Element can contain: Element (container or leaf)

Text (leaf)

Attributes (not on tree)

Comment (leaf)

Unknown (leaf)

@endverbatim

*/

class TINYXML2_LIB XMLNode

{

friend class XMLDocument;

friend class XMLElement;

public:

/// Get the XMLDocument that owns this XMLNode.

const XMLDocument* GetDocument() const {

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;

/** 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 optionally 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 optionally 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.

If the child node is already part of the document,

it is moved from its old location to the new location.

Returns the addThis argument or 0 if the node does not

belong to the same document.

*/

XMLNode* InsertEndChild( XMLNode* addThis );

XMLNode* LinkEndChild( XMLNode* addThis ) {

return InsertEndChild( addThis );

}

/**

Add a child node as the first (left) child.

If the child node is already part of the document,

it is moved from its old location to the new location.

Returns the addThis argument or 0 if the node does not

belong to the same document.

*/

XMLNode* InsertFirstChild( XMLNode* addThis );

/**

Add a node after the specified child node.

If the child node is already part of the document,

it is moved from its old location to the new location.

Returns the addThis argument or 0 if the afterThis node

is not a child of this node, or if the node does not

belong to the same document.

*/

XMLNode* InsertAfterChild( XMLNode* afterThis, XMLNode* addThis );

/**

Delete all the children of this node.

*/

void DeleteChildren();

/**

Delete a child of this node.

*/

void DeleteChild( XMLNode* node );

/**

Make a copy of this node, but not its children.

You may pass in a Document pointer that will be

the owner of the new Node. If the 'document' is

null, then the node returned will be allocated

from the current Document. (this->GetDocument())

Note: if called on a XMLDocument, this will return null.

*/

virtual XMLNode* ShallowClone( XMLDocument* document ) const = 0;

/**

Test if 2 nodes are the same, but don't test children.

The 2 nodes do not need to be in the same Document.

Note: if called on a XMLDocument, this will return false.

*/

virtual bool ShallowEqual( const XMLNode* compare ) const = 0;

/** Accept a hierarchical visit of the nodes in the TinyXML-2 DOM. Every node in the

XML tree will be conditionally visited and the host will be called back

via the XMLVisitor interface.

This is essentially a SAX interface for TinyXML-2. (Note however it doesn't re-parse

the XML for the callbacks, so the performance of TinyXML-2 is unchanged by using this

interface versus any other.)

The interface has been based on ideas from:

- http://www.saxproject.org/

- http://c2.com/cgi/wiki?HierarchicalVisitorPattern

Which are both good references for "visiting".

An example of using Accept():

@verbatim

XMLPrinter printer;

tinyxmlDoc.Accept( &printer );

const char* xmlcstr = printer.CStr();

@endverbatim

*/

virtual bool Accept( XMLVisitor* visitor ) const = 0;

// 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 );

static void DeleteNode( XMLNode* node );

};

/** 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 TINYXML2_LIB 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 TINYXML2_LIB XMLComment : public XMLNode

{

friend class XMLDocument;

public:

virtual XMLComment* ToComment() {

return this;

}

virtual const XMLComment* ToComment() const {

return this;

}

virtual bool Accept( XMLVisitor* visitor ) const;

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

TinyXML-2 will happily read or write files without a declaration,

however.

The text of the declaration isn't interpreted. It is parsed

and written as a string.

*/

class TINYXML2_LIB XMLDeclaration : public XMLNode

{

friend class XMLDocument;

public:

virtual XMLDeclaration* ToDeclaration() {

return this;

}

virtual const XMLDeclaration* ToDeclaration() const {

return this;

}

virtual bool Accept( XMLVisitor* visitor ) const;

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-2 doesn't recognize is saved as an

unknown. It is a tag of text, but should not be modified.

It will be written back to the XML, unchanged, when the file

is saved.

DTD tags get thrown into XMLUnknowns.

*/

class TINYXML2_LIB XMLUnknown : public XMLNode

{