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tinyxml.cpp

/*
www.sourceforge.net/projects/tinyxml
Original code (2.0 and earlier )copyright (c) 2000-2002 Lee Thomason (www.grinninglizard.com)

This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.

Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product documentation
would be appreciated but is not required.

2. Altered source versions must be plainly marked as such, and
must not be misrepresented as being the original software.

3. This notice may not be removed or altered from any source
distribution.
*/

#include "stdafx.h"
#include <ctype.h>
#include "tinyxml.h"

#ifdef TIXML_USE_STL
#include <sstream>
#endif


bool TiXmlBase::condenseWhiteSpace = true;

void TiXmlBase::PutString( const TIXML_STRING& str, TIXML_OSTREAM* stream )
{
      TIXML_STRING buffer;
      PutString( str, &buffer );
      (*stream) << buffer;
}

void TiXmlBase::PutString( const TIXML_STRING& str, TIXML_STRING* outString )
{
      int i=0;

      while( i<(int)str.length() )
      {
            unsigned char c = (unsigned char) str[i];

            if (    c == '&' 
                 && i < ( (int)str.length() - 2 )
                   && str[i+1] == '#'
                   && str[i+2] == 'x' )
            {
                  // Hexadecimal character reference.
                  // Pass through unchanged.
                  // &#xA9;   -- copyright symbol, for example.
                  //
                  // The -1 is a bug fix from Rob Laveaux. It keeps
                  // an overflow from happening if there is no ';'.
                  // There are actually 2 ways to exit this loop -
                  // while fails (error case) and break (semicolon found).
                  // However, there is no mechanism (currently) for
                  // this function to return an error.
                  while ( i<(int)str.length()-1 )
                  {
                        outString->append( str.c_str() + i, 1 );
                        ++i;
                        if ( str[i] == ';' )
                              break;
                  }
            }
            else if ( c == '&' )
            {
                  outString->append( entity[0].str, entity[0].strLength );
                  ++i;
            }
            else if ( c == '<' )
            {
                  outString->append( entity[1].str, entity[1].strLength );
                  ++i;
            }
            else if ( c == '>' )
            {
                  outString->append( entity[2].str, entity[2].strLength );
                  ++i;
            }
            else if ( c == '\"' )
            {
                  outString->append( entity[3].str, entity[3].strLength );
                  ++i;
            }
            else if ( c == '\'' )
            {
                  outString->append( entity[4].str, entity[4].strLength );
                  ++i;
            }
            else if ( c < 32 )
            {
                  // Easy pass at non-alpha/numeric/symbol
                  // Below 32 is symbolic.
                  char buf[ 32 ];
                  
                  #if defined(TIXML_SNPRINTF)         
                        TIXML_SNPRINTF( buf, sizeof(buf), "&#x%02X;", (unsigned) ( c & 0xff ) );
                  #else
                        sprintf( buf, "&#x%02X;", (unsigned) ( c & 0xff ) );
                  #endif            

                  //*ME:      warning C4267: convert 'size_t' to 'int'
                  //*ME:      Int-Cast to make compiler happy ...
                  outString->append( buf, (int)strlen( buf ) );
                  ++i;
            }
            else
            {
                  //char realc = (char) c;
                  //outString->append( &realc, 1 );
                  *outString += (char) c; // somewhat more efficient function call.
                  ++i;
            }
      }
}


// <-- Strange class for a bug fix. Search for STL_STRING_BUG
TiXmlBase::StringToBuffer::StringToBuffer( const TIXML_STRING& str )
{
      buffer = new char[ str.length()+1 ];
      if ( buffer )
      {
            strcpy( buffer, str.c_str() );
      }
}


TiXmlBase::StringToBuffer::~StringToBuffer()
{
      delete [] buffer;
}
// End strange bug fix. -->


TiXmlNode::TiXmlNode( NodeType _type ) : TiXmlBase()
{
      parent = 0;
      type = _type;
      firstChild = 0;
      lastChild = 0;
      prev = 0;
      next = 0;
}


TiXmlNode::~TiXmlNode()
{
      TiXmlNode* node = firstChild;
      TiXmlNode* temp = 0;

      while ( node )
      {
            temp = node;
            node = node->next;
            delete temp;
      }     
}


void TiXmlNode::CopyTo( TiXmlNode* target ) const
{
      target->SetValue (value.c_str() );
      target->userData = userData; 
}


00177 void TiXmlNode::Clear()
{
      TiXmlNode* node = firstChild;
      TiXmlNode* temp = 0;

      while ( node )
      {
            temp = node;
            node = node->next;
            delete temp;
      }     

      firstChild = 0;
      lastChild = 0;
}


00194 TiXmlNode* TiXmlNode::LinkEndChild( TiXmlNode* node )
{
      node->parent = this;

      node->prev = lastChild;
      node->next = 0;

      if ( lastChild )
            lastChild->next = node;
      else
            firstChild = node;                  // it was an empty list.

      lastChild = node;
      return node;
}


00211 TiXmlNode* TiXmlNode::InsertEndChild( const TiXmlNode& addThis )
{
      TiXmlNode* node = addThis.Clone();
      if ( !node )
            return 0;

      return LinkEndChild( node );
}


00221 TiXmlNode* TiXmlNode::InsertBeforeChild( TiXmlNode* beforeThis, const TiXmlNode& addThis )
{     
      if ( !beforeThis || beforeThis->parent != this )
            return 0;

      TiXmlNode* node = addThis.Clone();
      if ( !node )
            return 0;
      node->parent = this;

      node->next = beforeThis;
      node->prev = beforeThis->prev;
      if ( beforeThis->prev )
      {
            beforeThis->prev->next = node;
      }
      else
      {
            assert( firstChild == beforeThis );
            firstChild = node;
      }
      beforeThis->prev = node;
      return node;
}


00247 TiXmlNode* TiXmlNode::InsertAfterChild( TiXmlNode* afterThis, const TiXmlNode& addThis )
{
      if ( !afterThis || afterThis->parent != this )
            return 0;

      TiXmlNode* node = addThis.Clone();
      if ( !node )
            return 0;
      node->parent = this;

      node->prev = afterThis;
      node->next = afterThis->next;
      if ( afterThis->next )
      {
            afterThis->next->prev = node;
      }
      else
      {
            assert( lastChild == afterThis );
            lastChild = node;
      }
      afterThis->next = node;
      return node;
}


00273 TiXmlNode* TiXmlNode::ReplaceChild( TiXmlNode* replaceThis, const TiXmlNode& withThis )
{
      if ( replaceThis->parent != this )
            return 0;

      TiXmlNode* node = withThis.Clone();
      if ( !node )
            return 0;

      node->next = replaceThis->next;
      node->prev = replaceThis->prev;

      if ( replaceThis->next )
            replaceThis->next->prev = node;
      else
            lastChild = node;

      if ( replaceThis->prev )
            replaceThis->prev->next = node;
      else
            firstChild = node;

      delete replaceThis;
      node->parent = this;
      return node;
}


00301 bool TiXmlNode::RemoveChild( TiXmlNode* removeThis )
{
      if ( removeThis->parent != this )
      {     
            assert( 0 );
            return false;
      }

      if ( removeThis->next )
            removeThis->next->prev = removeThis->prev;
      else
            lastChild = removeThis->prev;

      if ( removeThis->prev )
            removeThis->prev->next = removeThis->next;
      else
            firstChild = removeThis->next;

      delete removeThis;
      return true;
}

00323 const TiXmlNode* TiXmlNode::FirstChild( const char * _value ) const
{
      const TiXmlNode* node;
      for ( node = firstChild; node; node = node->next )
      {
            if ( strcmp( node->Value(), _value ) == 0 )
                  return node;
      }
      return 0;
}


00335 TiXmlNode* TiXmlNode::FirstChild( const char * _value )
{
      TiXmlNode* node;
      for ( node = firstChild; node; node = node->next )
      {
            if ( strcmp( node->Value(), _value ) == 0 )
                  return node;
      }
      return 0;
}


const TiXmlNode* TiXmlNode::LastChild( const char * _value ) const
{
      const TiXmlNode* node;
      for ( node = lastChild; node; node = node->prev )
      {
            if ( strcmp( node->Value(), _value ) == 0 )
                  return node;
      }
      return 0;
}

00358 TiXmlNode* TiXmlNode::LastChild( const char * _value )
{
      TiXmlNode* node;
      for ( node = lastChild; node; node = node->prev )
      {
            if ( strcmp( node->Value(), _value ) == 0 )
                  return node;
      }
      return 0;
}

00369 const TiXmlNode* TiXmlNode::IterateChildren( const TiXmlNode* previous ) const
{
      if ( !previous )
      {
            return FirstChild();
      }
      else
      {
            assert( previous->parent == this );
            return previous->NextSibling();
      }
}

TiXmlNode* TiXmlNode::IterateChildren( TiXmlNode* previous )
{
      if ( !previous )
      {
            return FirstChild();
      }
      else
      {
            assert( previous->parent == this );
            return previous->NextSibling();
      }
}

00395 const TiXmlNode* TiXmlNode::IterateChildren( const char * val, const TiXmlNode* previous ) const
{
      if ( !previous )
      {
            return FirstChild( val );
      }
      else
      {
            assert( previous->parent == this );
            return previous->NextSibling( val );
      }
}

TiXmlNode* TiXmlNode::IterateChildren( const char * val, TiXmlNode* previous )
{
      if ( !previous )
      {
            return FirstChild( val );
      }
      else
      {
            assert( previous->parent == this );
            return previous->NextSibling( val );
      }
}

00421 const TiXmlNode* TiXmlNode::NextSibling( const char * _value ) const 
{
      const TiXmlNode* node;
      for ( node = next; node; node = node->next )
      {
            if ( strcmp( node->Value(), _value ) == 0 )
                  return node;
      }
      return 0;
}

TiXmlNode* TiXmlNode::NextSibling( const char * _value )
{
      TiXmlNode* node;
      for ( node = next; node; node = node->next )
      {
            if ( strcmp( node->Value(), _value ) == 0 )
                  return node;
      }
      return 0;
}

00443 const TiXmlNode* TiXmlNode::PreviousSibling( const char * _value ) const
{
      const TiXmlNode* node;
      for ( node = prev; node; node = node->prev )
      {
            if ( strcmp( node->Value(), _value ) == 0 )
                  return node;
      }
      return 0;
}

TiXmlNode* TiXmlNode::PreviousSibling( const char * _value )
{
      TiXmlNode* node;
      for ( node = prev; node; node = node->prev )
      {
            if ( strcmp( node->Value(), _value ) == 0 )
                  return node;
      }
      return 0;
}

00465 void TiXmlElement::RemoveAttribute( const char * name )
{
      TiXmlAttribute* node = attributeSet.Find( name );
      if ( node )
      {
            attributeSet.Remove( node );
            delete node;
      }
}

00475 const TiXmlElement* TiXmlNode::FirstChildElement() const
{
      const TiXmlNode* node;

      for ( node = FirstChild();
                  node;
                  node = node->NextSibling() )
      {
            if ( node->ToElement() )
                  return node->ToElement();
      }
      return 0;
}

TiXmlElement* TiXmlNode::FirstChildElement()
{
      TiXmlNode* node;

      for ( node = FirstChild();
                  node;
                  node = node->NextSibling() )
      {
            if ( node->ToElement() )
                  return node->ToElement();
      }
      return 0;
}

00503 const TiXmlElement* TiXmlNode::FirstChildElement( const char * _value ) const
{
      const TiXmlNode* node;

      for ( node = FirstChild( _value );
                  node;
                  node = node->NextSibling( _value ) )
      {
            if ( node->ToElement() )
                  return node->ToElement();
      }
      return 0;
}

TiXmlElement* TiXmlNode::FirstChildElement( const char * _value )
{
      TiXmlNode* node;

      for ( node = FirstChild( _value );
                  node;
                  node = node->NextSibling( _value ) )
      {
            if ( node->ToElement() )
                  return node->ToElement();
      }
      return 0;
}

00531 const TiXmlElement* TiXmlNode::NextSiblingElement() const
{
      const TiXmlNode* node;

      for ( node = NextSibling();
      node;
      node = node->NextSibling() )
      {
            if ( node->ToElement() )
                  return node->ToElement();
      }
      return 0;
}

TiXmlElement* TiXmlNode::NextSiblingElement()
{
      TiXmlNode* node;

      for ( node = NextSibling();
      node;
      node = node->NextSibling() )
      {
            if ( node->ToElement() )
                  return node->ToElement();
      }
      return 0;
}

00559 const TiXmlElement* TiXmlNode::NextSiblingElement( const char * _value ) const
{
      const TiXmlNode* node;

      for ( node = NextSibling( _value );
      node;
      node = node->NextSibling( _value ) )
      {
            if ( node->ToElement() )
                  return node->ToElement();
      }
      return 0;
}

TiXmlElement* TiXmlNode::NextSiblingElement( const char * _value )
{
      TiXmlNode* node;

      for ( node = NextSibling( _value );
      node;
      node = node->NextSibling( _value ) )
      {
            if ( node->ToElement() )
                  return node->ToElement();
      }
      return 0;
}


00588 const TiXmlDocument* TiXmlNode::GetDocument() const
{
      const TiXmlNode* node;

      for( node = this; node; node = node->parent )
      {
            if ( node->ToDocument() )
                  return node->ToDocument();
      }
      return 0;
}

TiXmlDocument* TiXmlNode::GetDocument()
{
      TiXmlNode* node;

      for( node = this; node; node = node->parent )
      {
            if ( node->ToDocument() )
                  return node->ToDocument();
      }
      return 0;
}

00612 TiXmlElement::TiXmlElement (const char * _value)
      : TiXmlNode( TiXmlNode::ELEMENT )
{
      firstChild = lastChild = 0;
      value = _value;
}


#ifdef TIXML_USE_STL
TiXmlElement::TiXmlElement( const std::string& _value ) 
      : TiXmlNode( TiXmlNode::ELEMENT )
{
      firstChild = lastChild = 0;
      value = _value;
}
#endif


TiXmlElement::TiXmlElement( const TiXmlElement& copy)
      : TiXmlNode( TiXmlNode::ELEMENT )
{
      firstChild = lastChild = 0;
      copy.CopyTo( this );    
}


void TiXmlElement::operator=( const TiXmlElement& base )
{
      ClearThis();
      base.CopyTo( this );
}


TiXmlElement::~TiXmlElement()
{
      ClearThis();
}


void TiXmlElement::ClearThis()
{
      Clear();
      while( attributeSet.First() )
      {
            TiXmlAttribute* node = attributeSet.First();
            attributeSet.Remove( node );
            delete node;
      }
}


00663 const char * TiXmlElement::Attribute( const char * name ) const
{
      const TiXmlAttribute* node = attributeSet.Find( name );

      if ( node )
            return node->Value();

      return 0;
}


00674 const char * TiXmlElement::Attribute( const char * name, int* i ) const
{
      const char * s = Attribute( name );
      if ( i )
      {
            if ( s )
                  *i = atoi( s );
            else
                  *i = 0;
      }
      return s;
}


00688 const char * TiXmlElement::Attribute( const char * name, double* d ) const
{
      const char * s = Attribute( name );
      if ( d )
      {
            if ( s )
                  *d = atof( s );
            else
                  *d = 0;
      }
      return s;
}


00702 int TiXmlElement::QueryIntAttribute( const char* name, int* ival ) const
{
      const TiXmlAttribute* node = attributeSet.Find( name );
      if ( !node )
            return TIXML_NO_ATTRIBUTE;

      return node->QueryIntValue( ival );
}


00712 int TiXmlElement::QueryDoubleAttribute( const char* name, double* dval ) const
{
      const TiXmlAttribute* node = attributeSet.Find( name );
      if ( !node )
            return TIXML_NO_ATTRIBUTE;

      return node->QueryDoubleValue( dval );
}


00722 void TiXmlElement::SetAttribute( const char * name, int val )
{     
      char buf[64];
      #if defined(TIXML_SNPRINTF)         
            TIXML_SNPRINTF( buf, sizeof(buf), "%d", val );
      #else
            sprintf( buf, "%d", val );
      #endif
      SetAttribute( name, buf );
}


00734 void TiXmlElement::SetDoubleAttribute( const char * name, double val )
{     
      char buf[256];
      #if defined(TIXML_SNPRINTF)         
            TIXML_SNPRINTF( buf, sizeof(buf), "%f", val );
      #else
            sprintf( buf, "%f", val );
      #endif
      SetAttribute( name, buf );
}


00746 void TiXmlElement::SetAttribute( const char * name, const char * _value )
{
      TiXmlAttribute* node = attributeSet.Find( name );
      if ( node )
      {
            node->SetValue( _value );
            return;
      }

      TiXmlAttribute* attrib = new TiXmlAttribute( name, _value );
      if ( attrib )
      {
            attributeSet.Add( attrib );
      }
      else
      {
            TiXmlDocument* document = GetDocument();
            if ( document ) document->SetError( TIXML_ERROR_OUT_OF_MEMORY, 0, 0, TIXML_ENCODING_UNKNOWN );
      }
}

00767 void TiXmlElement::Print( FILE* cfile, int depth ) const
{
      int i;
      for ( i=0; i<depth; i++ )
      {
            fprintf( cfile, "    " );
      }

      fprintf( cfile, "<%s", value.c_str() );

      const TiXmlAttribute* attrib;
      for ( attrib = attributeSet.First(); attrib; attrib = attrib->Next() )
      {
            fprintf( cfile, " " );
            attrib->Print( cfile, depth );
      }

      // There are 3 different formatting approaches:
      // 1) An element without children is printed as a <foo /> node
      // 2) An element with only a text child is printed as <foo> text </foo>
      // 3) An element with children is printed on multiple lines.
      TiXmlNode* node;
      if ( !firstChild )
      {
            fprintf( cfile, " />" );
      }
      else if ( firstChild == lastChild && firstChild->ToText() )
      {
            fprintf( cfile, ">" );
            firstChild->Print( cfile, depth + 1 );
            fprintf( cfile, "</%s>", value.c_str() );
      }
      else
      {
            fprintf( cfile, ">" );

            for ( node = firstChild; node; node=node->NextSibling() )
            {
                  if ( !node->ToText() )
                  {
                        fprintf( cfile, "\n" );
                  }
                  node->Print( cfile, depth+1 );
            }
            fprintf( cfile, "\n" );
            for( i=0; i<depth; ++i )
            fprintf( cfile, "    " );
            fprintf( cfile, "</%s>", value.c_str() );
      }
}

void TiXmlElement::StreamOut( TIXML_OSTREAM * stream ) const
{
      (*stream) << "<" << value;

      const TiXmlAttribute* attrib;
      for ( attrib = attributeSet.First(); attrib; attrib = attrib->Next() )
      {     
            (*stream) << " ";
            attrib->StreamOut( stream );
      }

      // If this node has children, give it a closing tag. Else
      // make it an empty tag.
      TiXmlNode* node;
      if ( firstChild )
      {           
            (*stream) << ">";

            for ( node = firstChild; node; node=node->NextSibling() )
            {
                  node->StreamOut( stream );
            }
            (*stream) << "</" << value << ">";
      }
      else
      {
            (*stream) << " />";
      }
}


void TiXmlElement::CopyTo( TiXmlElement* target ) const
{
      // superclass:
      TiXmlNode::CopyTo( target );

      // Element class: 
      // Clone the attributes, then clone the children.
      const TiXmlAttribute* attribute = 0;
      for(  attribute = attributeSet.First();
      attribute;
      attribute = attribute->Next() )
      {
            target->SetAttribute( attribute->Name(), attribute->Value() );
      }

      TiXmlNode* node = 0;
      for ( node = firstChild; node; node = node->NextSibling() )
      {
            target->LinkEndChild( node->Clone() );
      }
}


00872 TiXmlNode* TiXmlElement::Clone() const
{
      TiXmlElement* clone = new TiXmlElement( Value() );
      if ( !clone )
            return 0;

      CopyTo( clone );
      return clone;
}


00883 const char* TiXmlElement::GetText() const
{
      const TiXmlNode* child = this->FirstChild();
      if ( child ) {
            const TiXmlText* childText = child->ToText();
            if ( childText ) {
                  return childText->Value();
            }
      }
      return 0;
}


00896 TiXmlDocument::TiXmlDocument() : TiXmlNode( TiXmlNode::DOCUMENT )
{
      tabsize = 4;
      useMicrosoftBOM = false;
      ClearError();
}

00903 TiXmlDocument::TiXmlDocument( const char * documentName ) : TiXmlNode( TiXmlNode::DOCUMENT )
{
      tabsize = 4;
      useMicrosoftBOM = false;
      value = documentName;
      ClearError();
}


#ifdef TIXML_USE_STL
TiXmlDocument::TiXmlDocument( const std::string& documentName ) : TiXmlNode( TiXmlNode::DOCUMENT )
{
      tabsize = 4;
      useMicrosoftBOM = false;
    value = documentName;
      ClearError();
}
#endif


TiXmlDocument::TiXmlDocument( const TiXmlDocument& copy ) : TiXmlNode( TiXmlNode::DOCUMENT )
{
      copy.CopyTo( this );
}


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


00936 bool TiXmlDocument::LoadFile( TiXmlEncoding encoding )
{
      // See STL_STRING_BUG below.
      StringToBuffer buf( value );

      if ( buf.buffer && LoadFile( buf.buffer, encoding ) )
            return true;

      return false;
}


00948 bool TiXmlDocument::SaveFile() const
{
      // See STL_STRING_BUG below.
      StringToBuffer buf( value );

      if ( buf.buffer && SaveFile( buf.buffer ) )
            return true;

      return false;
}

00959 bool TiXmlDocument::LoadFile( const char* filename, TiXmlEncoding encoding )
{
      // Delete the existing data:
      Clear();
      location.Clear();

      // There was a really terrifying little bug here. The code:
      //          value = filename
      // in the STL case, cause the assignment method of the std::string to
      // be called. What is strange, is that the std::string had the same
      // address as it's c_str() method, and so bad things happen. Looks
      // like a bug in the Microsoft STL implementation.
      // See STL_STRING_BUG above.
      // Fixed with the StringToBuffer class.
      value = filename;

      // reading in binary mode so that tinyxml can normalize the EOL
      FILE* file = fopen( value.c_str (), "rb" );     

      if ( file )
      {
            // Get the file size, so we can pre-allocate the string. HUGE speed impact.
            long length = 0;
            fseek( file, 0, SEEK_END );
            length = ftell( file );
            fseek( file, 0, SEEK_SET );

            // Strange case, but good to handle up front.
            if ( length == 0 )
            {
                  fclose( file );
                  return false;
            }

            // If we have a file, assume it is all one big XML file, and read it in.
            // The document parser may decide the document ends sooner than the entire file, however.
            TIXML_STRING data;
            data.reserve( length );

            // Subtle bug here. TinyXml did use fgets. But from the XML spec:
            // 2.11 End-of-Line Handling
            // <snip>
            // <quote>
            // ...the XML processor MUST behave as if it normalized all line breaks in external 
            // parsed entities (including the document entity) on input, before parsing, by translating 
            // both the two-character sequence #xD #xA and any #xD that is not followed by #xA to 
            // a single #xA character.
            // </quote>
            //
            // It is not clear fgets does that, and certainly isn't clear it works cross platform. 
            // Generally, you expect fgets to translate from the convention of the OS to the c/unix
            // convention, and not work generally.

            /*
            while( fgets( buf, sizeof(buf), file ) )
            {
                  data += buf;
            }
            */

            char* buf = new char[ length+1 ];
            buf[0] = 0;

            if ( fread( buf, length, 1, file ) != 1 ) {
            //if ( fread( buf, 1, length, file ) != (size_t)length ) {
                  SetError( TIXML_ERROR_OPENING_FILE, 0, 0, TIXML_ENCODING_UNKNOWN );
                  fclose( file );
                  return false;
            }
            fclose( file );

            const char* lastPos = buf;
            const char* p = buf;

            buf[length] = 0;
            while( *p ) {
                  assert( p < (buf+length) );
                  if ( *p == 0xa ) {
                        // Newline character. No special rules for this. Append all the characters
                        // since the last string, and include the newline.
                        data.append( lastPos, p-lastPos+1 );      // append, include the newline
                        ++p;                                                  // move past the newline
                        lastPos = p;                                          // and point to the new buffer (may be 0)
                        assert( p <= (buf+length) );
                  }
                  else if ( *p == 0xd ) {
                        // Carriage return. Append what we have so far, then
                        // handle moving forward in the buffer.
                        if ( (p-lastPos) > 0 ) {
                              data.append( lastPos, p-lastPos );  // do not add the CR
                        }
                        data += (char)0xa;                                    // a proper newline

                        if ( *(p+1) == 0xa ) {
                              // Carriage return - new line sequence
                              p += 2;
                              lastPos = p;
                              assert( p <= (buf+length) );
                        }
                        else {
                              // it was followed by something else...that is presumably characters again.
                              ++p;
                              lastPos = p;
                              assert( p <= (buf+length) );
                        }
                  }
                  else {
                        ++p;
                  }
            }
            // Handle any left over characters.
            if ( p-lastPos ) {
                  data.append( lastPos, p-lastPos );
            }           
            delete [] buf;
            buf = 0;

            Parse( data.c_str(), 0, encoding );

            if (  Error() )
            return false;
        else
                  return true;
      }
      SetError( TIXML_ERROR_OPENING_FILE, 0, 0, TIXML_ENCODING_UNKNOWN );
      return false;
}

01087 bool TiXmlDocument::SaveFile( const char * filename ) const
{
      // The old c stuff lives on...
      FILE* fp = fopen( filename, "w" );
      if ( fp )
      {
            if ( useMicrosoftBOM ) 
            {
                  const unsigned char TIXML_UTF_LEAD_0 = 0xefU;
                  const unsigned char TIXML_UTF_LEAD_1 = 0xbbU;
                  const unsigned char TIXML_UTF_LEAD_2 = 0xbfU;

                  fputc( TIXML_UTF_LEAD_0, fp );
                  fputc( TIXML_UTF_LEAD_1, fp );
                  fputc( TIXML_UTF_LEAD_2, fp );
            }
            Print( fp, 0 );
            fclose( fp );
            return true;
      }
      return false;
}


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

      target->error = error;
      target->errorDesc = errorDesc.c_str ();

      TiXmlNode* node = 0;
      for ( node = firstChild; node; node = node->NextSibling() )
      {
            target->LinkEndChild( node->Clone() );
      }     
}


01126 TiXmlNode* TiXmlDocument::Clone() const
{
      TiXmlDocument* clone = new TiXmlDocument();
      if ( !clone )
            return 0;

      CopyTo( clone );
      return clone;
}


01137 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;
      }
}


01163 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;
}

01181 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;
}

01199 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) << "\"";
      }
}

01231 int TiXmlAttribute::QueryIntValue( int* ival ) const
{
      if ( sscanf( value.c_str(), "%d", ival ) == 1 )
            return TIXML_SUCCESS;
      return TIXML_WRONG_TYPE;
}

01238 int TiXmlAttribute::QueryDoubleValue( double* dval ) const
{
      if ( sscanf( value.c_str(), "%lf", dval ) == 1 )
            return TIXML_SUCCESS;
      return TIXML_WRONG_TYPE;
}

01245 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);
}

01256 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);
}

01267 int TiXmlAttribute::IntValue() const
{
      return atoi (value.c_str ());
}

01272 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 );
}


01291 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 );
}


01315 TiXmlNode* TiXmlComment::Clone() const
{
      TiXmlComment* clone = new TiXmlComment();

      if ( !clone )
            return 0;

      CopyTo( clone );
      return clone;
}


01327 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;
}


01369 TiXmlNode* TiXmlText::Clone() const
{     
      TiXmlText* clone = 0;
      clone = new TiXmlText( "" );

      if ( !clone )
            return 0;

      CopyTo( clone );
      return clone;
}


01382 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 );
}


01420 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;
}


01469 TiXmlNode* TiXmlDeclaration::Clone() const
{     
      TiXmlDeclaration* clone = new TiXmlDeclaration();

      if ( !clone )
            return 0;

      CopyTo( clone );
      return clone;
}


01481 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 );
}


01501 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( 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 char * 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 char * 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


01612 TiXmlHandle TiXmlHandle::FirstChild() const
{
      if ( node )
      {
            TiXmlNode* child = node->FirstChild();
            if ( child )
                  return TiXmlHandle( child );
      }
      return TiXmlHandle( 0 );
}


01624 TiXmlHandle TiXmlHandle::FirstChild( const char * value ) const
{
      if ( node )
      {
            TiXmlNode* child = node->FirstChild( value );
            if ( child )
                  return TiXmlHandle( child );
      }
      return TiXmlHandle( 0 );
}


01636 TiXmlHandle TiXmlHandle::FirstChildElement() const
{
      if ( node )
      {
            TiXmlElement* child = node->FirstChildElement();
            if ( child )
                  return TiXmlHandle( child );
      }
      return TiXmlHandle( 0 );
}


01648 TiXmlHandle TiXmlHandle::FirstChildElement( const char * value ) const
{
      if ( node )
      {
            TiXmlElement* child = node->FirstChildElement( value );
            if ( child )
                  return TiXmlHandle( child );
      }
      return TiXmlHandle( 0 );
}


01660 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 );
}


01679 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 );
}


01698 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 );
}


01717 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 );
}

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