tinyxml.cpp

xml 简单解析器

void TiXmlDocument::Print( FILE* cfile, int depth ) const
{
	const TiXmlNode* node;
	for ( node=FirstChild(); node; node=node->NextSibling() )
	{
		node->Print( cfile, depth );
		fprintf( cfile, "\n" );
	}
}

void TiXmlDocument::StreamOut( TIXML_OSTREAM * out ) const
{
	const TiXmlNode* node;
	for ( node=FirstChild(); node; node=node->NextSibling() )
	{
		node->StreamOut( out );

		// Special rule for streams: stop after the root element.
		// The stream in code will only read one element, so don't
		// write more than one.
		if ( node->ToElement() )
			break;
	}
}


const TiXmlAttribute* TiXmlAttribute::Next() const
{
	// We are using knowledge of the sentinel. The sentinel
	// have a value or name.
	if ( next->value.empty() && next->name.empty() )
		return 0;
	return next;
}

TiXmlAttribute* TiXmlAttribute::Next()
{
	// We are using knowledge of the sentinel. The sentinel
	// have a value or name.
	if ( next->value.empty() && next->name.empty() )
		return 0;
	return next;
}

const TiXmlAttribute* TiXmlAttribute::Previous() const
{
	// We are using knowledge of the sentinel. The sentinel
	// have a value or name.
	if ( prev->value.empty() && prev->name.empty() )
		return 0;
	return prev;
}

TiXmlAttribute* TiXmlAttribute::Previous()
{
	// We are using knowledge of the sentinel. The sentinel
	// have a value or name.
	if ( prev->value.empty() && prev->name.empty() )
		return 0;
	return prev;
}

void TiXmlAttribute::Print( FILE* cfile, int /*depth*/ ) const
{
	TIXML_STRING n, v;

	PutString( name, &n );
	PutString( value, &v );

	if (value.find ('\"') == TIXML_STRING::npos)
		fprintf (cfile, "%s=\"%s\"", n.c_str(), v.c_str() );
	else
		fprintf (cfile, "%s='%s'", n.c_str(), v.c_str() );
}


void TiXmlAttribute::StreamOut( TIXML_OSTREAM * stream ) const
{
	if (value.find( '\"' ) != TIXML_STRING::npos)
	{
		PutString( name, stream );
		(*stream) << "=" << "'";
		PutString( value, stream );
		(*stream) << "'";
	}
	else
	{
		PutString( name, stream );
		(*stream) << "=" << "\"";
		PutString( value, stream );
		(*stream) << "\"";
	}
}

int TiXmlAttribute::QueryIntValue( int* ival ) const
{
	if ( sscanf( value.c_str(), "%d", ival ) == 1 )
		return TIXML_SUCCESS;
	return TIXML_WRONG_TYPE;
}

int TiXmlAttribute::QueryDoubleValue( double* dval ) const
{
	if ( sscanf( value.c_str(), "%lf", dval ) == 1 )
		return TIXML_SUCCESS;
	return TIXML_WRONG_TYPE;
}

void TiXmlAttribute::SetIntValue( int _value )
{
	char buf [64];
	#if defined(TIXML_SNPRINTF)		
		TIXML_SNPRINTF(buf, sizeof(buf), "%d", _value);
	#else
		sprintf (buf, "%d", _value);
	#endif
	SetValue (buf);
}

void TiXmlAttribute::SetDoubleValue( double _value )
{
	char buf [256];
	#if defined(TIXML_SNPRINTF)		
		TIXML_SNPRINTF( buf, sizeof(buf), "%lf", _value);
	#else
		sprintf (buf, "%lf", _value);
	#endif
	SetValue (buf);
}

int TiXmlAttribute::IntValue() const
{
	return atoi (value.c_str ());
}

double  TiXmlAttribute::DoubleValue() const
{
	return atof (value.c_str ());
}


TiXmlComment::TiXmlComment( const TiXmlComment& copy ) : TiXmlNode( TiXmlNode::COMMENT )
{
	copy.CopyTo( this );
}


void TiXmlComment::operator=( const TiXmlComment& base )
{
	Clear();
	base.CopyTo( this );
}


void TiXmlComment::Print( FILE* cfile, int depth ) const
{
	for ( int i=0; i<depth; i++ )
	{
		fputs( "    ", cfile );
	}
	fprintf( cfile, "<!--%s-->", value.c_str() );
}

void TiXmlComment::StreamOut( TIXML_OSTREAM * stream ) const
{
	(*stream) << "<!--";
	//PutString( value, stream );
	(*stream) << value;
	(*stream) << "-->";
}


void TiXmlComment::CopyTo( TiXmlComment* target ) const
{
	TiXmlNode::CopyTo( target );
}


TiXmlNode* TiXmlComment::Clone() const
{
	TiXmlComment* clone = new TiXmlComment();

	if ( !clone )
		return 0;

	CopyTo( clone );
	return clone;
}


void TiXmlText::Print( FILE* cfile, int depth ) const
{
	if ( cdata )
	{
		int i;
		fprintf( cfile, "\n" );
		for ( i=0; i<depth; i++ ) {
			fprintf( cfile, "    " );
		}
		fprintf( cfile, "<![CDATA[" );
		fprintf( cfile, "%s", value.c_str() );	// unformatted output
		fprintf( cfile, "]]>\n" );
	}
	else
	{
		TIXML_STRING buffer;
		PutString( value, &buffer );
		fprintf( cfile, "%s", buffer.c_str() );
	}
}


void TiXmlText::StreamOut( TIXML_OSTREAM * stream ) const
{
	if ( cdata )
	{
		(*stream) << "<![CDATA[" << value << "]]>";
	}
	else
	{
		PutString( value, stream );
	}
}


void TiXmlText::CopyTo( TiXmlText* target ) const
{
	TiXmlNode::CopyTo( target );
	target->cdata = cdata;
}


TiXmlNode* TiXmlText::Clone() const
{	
	TiXmlText* clone = 0;
	clone = new TiXmlText( "" );

	if ( !clone )
		return 0;

	CopyTo( clone );
	return clone;
}


TiXmlDeclaration::TiXmlDeclaration( const char * _version,
									const char * _encoding,
									const char * _standalone )
	: TiXmlNode( TiXmlNode::DECLARATION )
{
	version = _version;
	encoding = _encoding;
	standalone = _standalone;
}


#ifdef TIXML_USE_STL
TiXmlDeclaration::TiXmlDeclaration(	const std::string& _version,
									const std::string& _encoding,
									const std::string& _standalone )
	: TiXmlNode( TiXmlNode::DECLARATION )
{
	version = _version;
	encoding = _encoding;
	standalone = _standalone;
}
#endif


TiXmlDeclaration::TiXmlDeclaration( const TiXmlDeclaration& copy )
	: TiXmlNode( TiXmlNode::DECLARATION )
{
	copy.CopyTo( this );	
}


void TiXmlDeclaration::operator=( const TiXmlDeclaration& copy )
{
	Clear();
	copy.CopyTo( this );
}


void TiXmlDeclaration::Print( FILE* cfile, int /*depth*/ ) const
{
	fprintf (cfile, "<?xml ");

	if ( !version.empty() )
		fprintf (cfile, "version=\"%s\" ", version.c_str ());
	if ( !encoding.empty() )
		fprintf (cfile, "encoding=\"%s\" ", encoding.c_str ());
	if ( !standalone.empty() )
		fprintf (cfile, "standalone=\"%s\" ", standalone.c_str ());
	fprintf (cfile, "?>");
}

void TiXmlDeclaration::StreamOut( TIXML_OSTREAM * stream ) const
{
	(*stream) << "<?xml ";

	if ( !version.empty() )
	{
		(*stream) << "version=\"";
		PutString( version, stream );
		(*stream) << "\" ";
	}
	if ( !encoding.empty() )
	{
		(*stream) << "encoding=\"";
		PutString( encoding, stream );
		(*stream ) << "\" ";
	}
	if ( !standalone.empty() )
	{
		(*stream) << "standalone=\"";
		PutString( standalone, stream );
		(*stream) << "\" ";
	}
	(*stream) << "?>";
}


void TiXmlDeclaration::CopyTo( TiXmlDeclaration* target ) const
{
	TiXmlNode::CopyTo( target );

	target->version = version;
	target->encoding = encoding;
	target->standalone = standalone;
}


TiXmlNode* TiXmlDeclaration::Clone() const
{	
	TiXmlDeclaration* clone = new TiXmlDeclaration();

	if ( !clone )
		return 0;

	CopyTo( clone );
	return clone;
}


void TiXmlUnknown::Print( FILE* cfile, int depth ) const
{
	for ( int i=0; i<depth; i++ )
		fprintf( cfile, "    " );
	fprintf( cfile, "<%s>", value.c_str() );
}


void TiXmlUnknown::StreamOut( TIXML_OSTREAM * stream ) const
{
	(*stream) << "<" << value << ">";		// Don't use entities here! It is unknown.
}


void TiXmlUnknown::CopyTo( TiXmlUnknown* target ) const
{
	TiXmlNode::CopyTo( target );
}


TiXmlNode* TiXmlUnknown::Clone() const
{
	TiXmlUnknown* clone = new TiXmlUnknown();

	if ( !clone )
		return 0;

	CopyTo( clone );
	return clone;
}


TiXmlAttributeSet::TiXmlAttributeSet()
{
	sentinel.next = &sentinel;
	sentinel.prev = &sentinel;
}


TiXmlAttributeSet::~TiXmlAttributeSet()
{
	assert( sentinel.next == &sentinel );
	assert( sentinel.prev == &sentinel );
}


void TiXmlAttributeSet::Add( TiXmlAttribute* addMe )
{
	assert( !Find( TIXML_STRING( addMe->Name() ) ) );	// Shouldn't be multiply adding to the set.

	addMe->next = &sentinel;
	addMe->prev = sentinel.prev;

	sentinel.prev->next = addMe;
	sentinel.prev      = addMe;
}

void TiXmlAttributeSet::Remove( TiXmlAttribute* removeMe )
{
	TiXmlAttribute* node;

	for( node = sentinel.next; node != &sentinel; node = node->next )
	{
		if ( node == removeMe )
		{
			node->prev->next = node->next;
			node->next->prev = node->prev;
			node->next = 0;
			node->prev = 0;
			return;
		}
	}
	assert( 0 );		// we tried to remove a non-linked attribute.
}

const TiXmlAttribute* TiXmlAttributeSet::Find( const TIXML_STRING& name ) const
{
	const TiXmlAttribute* node;

	for( node = sentinel.next; node != &sentinel; node = node->next )
	{
		if ( node->name == name )
			return node;
	}
	return 0;
}

TiXmlAttribute*	TiXmlAttributeSet::Find( const TIXML_STRING& name )
{
	TiXmlAttribute* node;

	for( node = sentinel.next; node != &sentinel; node = node->next )
	{
		if ( node->name == name )
			return node;
	}
	return 0;
}

#ifdef TIXML_USE_STL	
TIXML_ISTREAM & operator >> (TIXML_ISTREAM & in, TiXmlNode & base)
{
	TIXML_STRING tag;
	tag.reserve( 8 * 1000 );
	base.StreamIn( &in, &tag );

	base.Parse( tag.c_str(), 0, TIXML_DEFAULT_ENCODING );
	return in;
}
#endif


TIXML_OSTREAM & operator<< (TIXML_OSTREAM & out, const TiXmlNode & base)
{
	base.StreamOut (& out);
	return out;
}


#ifdef TIXML_USE_STL	
std::string & operator<< (std::string& out, const TiXmlNode& base )
{
   std::ostringstream os_stream( std::ostringstream::out );
   base.StreamOut( &os_stream );
   
   out.append( os_stream.str() );
   return out;
}
#endif


TiXmlHandle TiXmlHandle::FirstChild() const
{
	if ( node )
	{
		TiXmlNode* child = node->FirstChild();
		if ( child )
			return TiXmlHandle( child );
	}
	return TiXmlHandle( 0 );
}


TiXmlHandle TiXmlHandle::FirstChild( const char * value ) const
{
	if ( node )
	{
		TiXmlNode* child = node->FirstChild( value );
		if ( child )
			return TiXmlHandle( child );
	}
	return TiXmlHandle( 0 );
}


TiXmlHandle TiXmlHandle::FirstChildElement() const
{
	if ( node )
	{
		TiXmlElement* child = node->FirstChildElement();
		if ( child )
			return TiXmlHandle( child );
	}
	return TiXmlHandle( 0 );
}


TiXmlHandle TiXmlHandle::FirstChildElement( const char * value ) const
{
	if ( node )
	{
		TiXmlElement* child = node->FirstChildElement( value );
		if ( child )
			return TiXmlHandle( child );
	}
	return TiXmlHandle( 0 );
}


TiXmlHandle TiXmlHandle::Child( int count ) const
{
	if ( node )
	{
		int i;
		TiXmlNode* child = node->FirstChild();
		for (	i=0;
				child && i<count;
				child = child->NextSibling(), ++i )
		{
			// nothing
		}
		if ( child )
			return TiXmlHandle( child );
	}
	return TiXmlHandle( 0 );
}


TiXmlHandle TiXmlHandle::Child( const char* value, int count ) const
{
	if ( node )
	{
		int i;
		TiXmlNode* child = node->FirstChild( value );
		for (	i=0;
				child && i<count;
				child = child->NextSibling( value ), ++i )
		{
			// nothing
		}
		if ( child )
			return TiXmlHandle( child );
	}
	return TiXmlHandle( 0 );
}


TiXmlHandle TiXmlHandle::ChildElement( int count ) const
{
	if ( node )
	{
		int i;
		TiXmlElement* child = node->FirstChildElement();
		for (	i=0;
				child && i<count;
				child = child->NextSiblingElement(), ++i )
		{
			// nothing
		}
		if ( child )
			return TiXmlHandle( child );
	}
	return TiXmlHandle( 0 );
}


TiXmlHandle TiXmlHandle::ChildElement( const char* value, int count ) const
{
	if ( node )
	{
		int i;
		TiXmlElement* child = node->FirstChildElement( value );
		for (	i=0;
				child && i<count;
				child = child->NextSiblingElement( value ), ++i )
		{
			// nothing
		}
		if ( child )
			return TiXmlHandle( child );
	}
	return TiXmlHandle( 0 );
}