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tinyxml2::XMLUnknown class
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.
Syntax
class XMLUnknown;
class XMLPrinter;
class TINYXML2_LIB StrPair
{
public:
enum Mode {
NEEDS_ENTITY_PROCESSING = 0x01,
NEEDS_NEWLINE_NORMALIZATION = 0x02,
NEEDS_WHITESPACE_COLLAPSING = 0x04,
TEXT_ELEMENT = NEEDS_ENTITY_PROCESSING | NEEDS_NEWLINE_NORMALIZATION,
TEXT_ELEMENT_LEAVE_ENTITIES = NEEDS_NEWLINE_NORMALIZATION,
ATTRIBUTE_NAME = 0,
ATTRIBUTE_VALUE = NEEDS_ENTITY_PROCESSING | NEEDS_NEWLINE_NORMALIZATION,
ATTRIBUTE_VALUE_LEAVE_ENTITIES = NEEDS_NEWLINE_NORMALIZATION,
COMMENT = NEEDS_NEWLINE_NORMALIZATION
};
StrPair() : _flags( 0 ), _start( 0 ), _end( 0 ) {}
~StrPair();
void Set( char* start, char* end, int flags ) {
TIXMLASSERT( start );
TIXMLASSERT( end );
Reset();
_start = start;
_end = end;
_flags = flags | NEEDS_FLUSH;
}
const char* GetStr();
bool Empty() const {
return _start == _end;
}
void SetInternedStr( const char* str ) {
Reset();
_start = const_cast<char*>(str);
}
void SetStr( const char* str, int flags=0 );
char* ParseText( char* in, const char* endTag, int strFlags, int* curLineNumPtr );
char* ParseName( char* in );
void TransferTo( StrPair* other );
void Reset();
private:
void CollapseWhitespace();
enum {
NEEDS_FLUSH = 0x100,
NEEDS_DELETE = 0x200
};
int _flags;
char* _start;
char* _end;
StrPair( const StrPair& other );
void operator=( const StrPair& other );
};
template <class T, int INITIAL_SIZE>
class DynArray
{
public:
DynArray() :
_mem( _pool ),
_allocated( INITIAL_SIZE ),
_size( 0 )
{
}
~DynArray() {
if ( _mem != _pool ) {
delete [] _mem;
}
}
void Clear() {
_size = 0;
}
void Push( T t ) {
TIXMLASSERT( _size < INT_MAX );
EnsureCapacity( _size+1 );
_mem[_size] = t;
++_size;
}
T* PushArr( int count ) {
TIXMLASSERT( count >= 0 );
TIXMLASSERT( _size <= INT_MAX - count );
EnsureCapacity( _size+count );
T* ret = &_mem[_size];
_size += count;
return ret;
}
T Pop() {
TIXMLASSERT( _size > 0 );
--_size;
return _mem[_size];
}
void PopArr( int count ) {
TIXMLASSERT( _size >= count );
_size -= count;
}
bool Empty() const {
return _size == 0;
}
T& operator[](int i) {
TIXMLASSERT( i>= 0 && i < _size );
return _mem[i];
}
const T& operator[](int i) const {
TIXMLASSERT( i>= 0 && i < _size );
return _mem[i];
}
const T& PeekTop() const {
TIXMLASSERT( _size > 0 );
return _mem[ _size - 1];
}
int Size() const {
TIXMLASSERT( _size >= 0 );
return _size;
}
int Capacity() const {
TIXMLASSERT( _allocated >= INITIAL_SIZE );
return _allocated;
}
void SwapRemove(int i) {
TIXMLASSERT(i >= 0 && i < _size);
TIXMLASSERT(_size > 0);
_mem[i] = _mem[_size - 1];
--_size;
}
const T* Mem() const {
TIXMLASSERT( _mem );
return _mem;
}
T* Mem() {
TIXMLASSERT( _mem );
return _mem;
}
private:
DynArray( const DynArray& );
void operator=( const DynArray& );
void EnsureCapacity( int cap ) {
TIXMLASSERT( cap > 0 );
if ( cap > _allocated ) {
TIXMLASSERT( cap <= INT_MAX / 2 );
const int newAllocated = cap * 2;
T* newMem = new T[newAllocated];
TIXMLASSERT( newAllocated >= _size );
memcpy( newMem, _mem, sizeof(T)*_size );
if ( _mem != _pool ) {
delete [] _mem;
}
_mem = newMem;
_allocated = newAllocated;
}
}
T* _mem;
T _pool[INITIAL_SIZE];
int _allocated;
int _size;
};
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< int ITEM_SIZE >
class MemPoolT : public MemPool
{
public:
MemPoolT() : _blockPtrs(), _root(0), _currentAllocs(0), _nAllocs(0), _maxAllocs(0), _nUntracked(0) {}
~MemPoolT() {
MemPoolT< ITEM_SIZE >::Clear();
}
void Clear() {
while( !_blockPtrs.Empty()) {
Block* lastBlock = _blockPtrs.Pop();
delete lastBlock;
}
_root = 0;
_currentAllocs = 0;
_nAllocs = 0;
_maxAllocs = 0;
_nUntracked = 0;
}
virtual int ItemSize() const {
return ITEM_SIZE;
}
int CurrentAllocs() const {
return _currentAllocs;
}
virtual void* Alloc() {
if ( !_root ) {
Block* block = new Block();
_blockPtrs.Push( block );
Item* blockItems = block->items;
for( int i = 0; i < ITEMS_PER_BLOCK - 1; ++i ) {
blockItems[i].next = &(blockItems[i + 1]);
}
blockItems[ITEMS_PER_BLOCK - 1].next = 0;
_root = blockItems;
}
Item* const result = _root;
TIXMLASSERT( result != 0 );
_root = _root->next;
++_currentAllocs;
if ( _currentAllocs > _maxAllocs ) {
_maxAllocs = _currentAllocs;
}
++_nAllocs;
++_nUntracked;
return result;
}
virtual void Free( void* mem ) {
if ( !mem ) {
return;
}
--_currentAllocs;
Item* item = static_cast<Item*>( mem );
#ifdef TINYXML2_DEBUG
memset( item, 0xfe, sizeof( *item ) );
#endif
item->next = _root;
_root = item;
}
void Trace( const char* name ) {
printf( "Mempool %s watermark=%d [%dk] current=%d size=%d nAlloc=%d blocks=%d\n",
name, _maxAllocs, _maxAllocs * ITEM_SIZE / 1024, _currentAllocs,
ITEM_SIZE, _nAllocs, _blockPtrs.Size() );
}
void SetTracked() {
--_nUntracked;
}
int Untracked() const {
return _nUntracked;
}
enum { ITEMS_PER_BLOCK = (4 * 1024) / ITEM_SIZE };
private:
MemPoolT( const MemPoolT& );
void operator=( const MemPoolT& );
union Item {
Item* next;
char itemData[ITEM_SIZE];
};
struct Block {
Item items[ITEMS_PER_BLOCK];
};
DynArray< Block*, 10 > _blockPtrs;
Item* _root;
int _currentAllocs;
int _nAllocs;
int _maxAllocs;
int _nUntracked;
};
class TINYXML2_LIB XMLVisitor
{
public:
virtual ~XMLVisitor() {}
virtual bool VisitEnter( const XMLDocument& ) {
return true;
}
virtual bool VisitExit( const XMLDocument& ) {
return true;
}
virtual bool VisitEnter( const XMLElement&, const XMLAttribute* ) {
return true;
}
virtual bool VisitExit( const XMLElement& ) {
return true;
}
virtual bool Visit( const XMLDeclaration& ) {
return true;
}
virtual bool Visit( const XMLText& ) {
return true;
}
virtual bool Visit( const XMLComment& ) {
return true;
}
virtual bool Visit( const XMLUnknown& ) {
return true;
}
};
enum XMLError {
XML_SUCCESS = 0,
XML_NO_ATTRIBUTE,
XML_WRONG_ATTRIBUTE_TYPE,
XML_ERROR_FILE_NOT_FOUND,
XML_ERROR_FILE_COULD_NOT_BE_OPENED,
XML_ERROR_FILE_READ_ERROR,
XML_ERROR_PARSING_ELEMENT,
XML_ERROR_PARSING_ATTRIBUTE,
XML_ERROR_PARSING_TEXT,
XML_ERROR_PARSING_CDATA,
XML_ERROR_PARSING_COMMENT,
XML_ERROR_PARSING_DECLARATION,
XML_ERROR_PARSING_UNKNOWN,
XML_ERROR_EMPTY_DOCUMENT,
XML_ERROR_MISMATCHED_ELEMENT,
XML_ERROR_PARSING,
XML_CAN_NOT_CONVERT_TEXT,
XML_NO_TEXT_NODE,
XML_ELEMENT_DEPTH_EXCEEDED,
XML_ERROR_COUNT
};
class TINYXML2_LIB XMLUtil
{
public:
static const char* SkipWhiteSpace( const char* p, int* curLineNumPtr ) {
TIXMLASSERT( p );
while( IsWhiteSpace(*p) ) {
if (curLineNumPtr && *p == '\n') {
++(*curLineNumPtr);
}
++p;
}
TIXMLASSERT( p );
return p;
}
static char* SkipWhiteSpace( char* const p, int* curLineNumPtr ) {
return const_cast<char*>( SkipWhiteSpace( const_cast<const char*>(p), curLineNumPtr ) );
}
static bool IsWhiteSpace( char p ) {
return !IsUTF8Continuation(p) && isspace( static_cast<unsigned char>(p) );
}
inline static bool IsNameStartChar( unsigned char ch ) {
if ( ch >= 128 ) {
return true;
}
if ( isalpha( ch ) ) {
return true;
}
return ch == ':' || ch == '_';
}
inline static bool IsNameChar( unsigned char ch ) {
return IsNameStartChar( ch )
|| isdigit( ch )
|| ch == '.'
|| ch == '-';
}
inline static bool IsPrefixHex( const char* p) {
p = SkipWhiteSpace(p, 0);
return p && *p == '0' && ( *(p + 1) == 'x' || *(p + 1) == 'X');
}
inline static bool StringEqual( const char* p, const char* q, int nChar=INT_MAX ) {
if ( p == q ) {
return true;
}
TIXMLASSERT( p );
TIXMLASSERT( q );
TIXMLASSERT( nChar >= 0 );
return strncmp( p, q, nChar ) == 0;
}
inline static bool IsUTF8Continuation( const char p ) {
return ( p & 0x80 ) != 0;
}
static const char* ReadBOM( const char* p, bool* hasBOM );
static const char* GetCharacterRef( const char* p, char* value, int* length );
static void ConvertUTF32ToUTF8( unsigned long input, char* output, int* length );
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 );
static void ToStr(int64_t v, char* buffer, int bufferSize);
static void ToStr(uint64_t v, char* buffer, int bufferSize);
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 );
static bool ToInt64(const char* str, int64_t* value);
static bool ToUnsigned64(const char* str, uint64_t* value);
static void SetBoolSerialization(const char* writeTrue, const char* writeFalse);
private:
static const char* writeBoolTrue;
static const char* writeBoolFalse;
};
class TINYXML2_LIB XMLNode
{
friend class XMLDocument;
friend class XMLElement;
public:
const XMLDocument* GetDocument() const {
TIXMLASSERT( _document );
return _document;
}
XMLDocument* GetDocument() {
TIXMLASSERT( _document );
return _document;
}
virtual XMLElement* ToElement() {
return 0;
}
virtual XMLText* ToText() {
return 0;
}
virtual XMLComment* ToComment() {
return 0;
}
virtual XMLDocument* ToDocument() {
return 0;
}
virtual XMLDeclaration* ToDeclaration() {
return 0;
}
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;
}
const char* Value() const;
void SetValue( const char* val, bool staticMem=false );
int GetLineNum() const { return _parseLineNum; }
const XMLNode* Parent() const {
return _parent;
}
XMLNode* Parent() {
return _parent;
}
bool NoChildren() const {
return !_firstChild;
}
const XMLNode* FirstChild() const {
return _firstChild;
}
XMLNode* FirstChild() {
return _firstChild;
}
const XMLElement* FirstChildElement( const char* name = 0 ) const;
XMLElement* FirstChildElement( const char* name = 0 ) {
return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->FirstChildElement( name ));
}
const XMLNode* LastChild() const {
return _lastChild;
}
XMLNode* LastChild() {
return _lastChild;
}
const XMLElement* LastChildElement( const char* name = 0 ) const;
XMLElement* LastChildElement( const char* name = 0 ) {
return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->LastChildElement(name) );
}
const XMLNode* PreviousSibling() const {
return _prev;
}
XMLNode* PreviousSibling() {
return _prev;
}
const XMLElement* PreviousSiblingElement( const char* name = 0 ) const ;
XMLElement* PreviousSiblingElement( const char* name = 0 ) {
return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->PreviousSiblingElement( name ) );
}
const XMLNode* NextSibling() const {
return _next;
}
XMLNode* NextSibling() {
return _next;
}
const XMLElement* NextSiblingElement( const char* name = 0 ) const;
XMLElement* NextSiblingElement( const char* name = 0 ) {
return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->NextSiblingElement( name ) );
}
XMLNode* InsertEndChild( XMLNode* addThis );
XMLNode* LinkEndChild( XMLNode* addThis ) {
return InsertEndChild( addThis );
}
XMLNode* InsertFirstChild( XMLNode* addThis );
XMLNode* InsertAfterChild( XMLNode* afterThis, XMLNode* addThis );
void DeleteChildren();
void DeleteChild( XMLNode* node );
virtual XMLNode* ShallowClone( XMLDocument* document ) const = 0;
XMLNode* DeepClone( XMLDocument* target ) const;
virtual bool ShallowEqual( const XMLNode* compare ) const = 0;
virtual bool Accept( XMLVisitor* visitor ) const = 0;
void SetUserData(void* userData) { _userData = userData; }
void* GetUserData() const { return _userData; }
protected:
explicit XMLNode( XMLDocument* );
virtual ~XMLNode();
virtual char* ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr);
XMLDocument* _document;
XMLNode* _parent;
mutable StrPair _value;
int _parseLineNum;
XMLNode* _firstChild;
XMLNode* _lastChild;
XMLNode* _prev;
XMLNode* _next;
void* _userData;
private:
MemPool* _memPool;
void Unlink( XMLNode* child );
static void DeleteNode( XMLNode* node );
void InsertChildPreamble( XMLNode* insertThis ) const;
const XMLElement* ToElementWithName( const char* name ) const;
XMLNode( const XMLNode& );
XMLNode& operator=( const XMLNode& );
};
class TINYXML2_LIB XMLText : public XMLNode
{
friend class XMLDocument;
public:
virtual bool Accept( XMLVisitor* visitor ) const;
virtual XMLText* ToText() {
return this;
}
virtual const XMLText* ToText() const {
return this;
}
void SetCData( bool isCData ) {
_isCData = isCData;
}
bool CData() const {
return _isCData;
}
virtual XMLNode* ShallowClone( XMLDocument* document ) const;
virtual bool ShallowEqual( const XMLNode* compare ) const;
protected:
explicit XMLText( XMLDocument* doc ) : XMLNode( doc ), _isCData( false ) {}
virtual ~XMLText() {}
char* ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr );
private:
bool _isCData;
XMLText( const XMLText& );
XMLText& operator=( const XMLText& );
};
class TINYXML2_LIB XMLComment : public XMLNode
{
friend class XMLDocument;
public:
virtual XMLComment* ToComment() {
return this;
}
virtual const XMLComment* ToComment() const {
return this;
}
virtual bool Accept( XMLVisitor* visitor ) const;
virtual XMLNode* ShallowClone( XMLDocument* document ) const;
virtual bool ShallowEqual( const XMLNode* compare ) const;
protected:
explicit XMLComment( XMLDocument* doc );
virtual ~XMLComment();
char* ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr);
private:
XMLComment( const XMLComment& );
XMLComment& operator=( const XMLComment& );
};
class TINYXML2_LIB XMLDeclaration : public XMLNode
{
friend class XMLDocument;
public:
virtual XMLDeclaration* ToDeclaration() {
return this;
}
virtual const XMLDeclaration* ToDeclaration() const {
return this;
}
virtual bool Accept( XMLVisitor* visitor ) const;
virtual XMLNode* ShallowClone( XMLDocument* document ) const;
virtual bool ShallowEqual( const XMLNode* compare ) const;
protected:
explicit XMLDeclaration( XMLDocument* doc );
virtual ~XMLDeclaration();
char* ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr );
private:
XMLDeclaration( const XMLDeclaration& );
XMLDeclaration& operator=( const XMLDeclaration& );
};
class TINYXML2_LIB XMLUnknown : public XMLNode;
Implemented in ![]()
tinyxml2.h:1105