/*www.sourceforge.net/projects/tinyxmlOriginal file by Yves Berquin.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, andmust not be misrepresented as being the original software.3. This notice may not be removed or altered from any source distribution.*/#include "tinyxml.h"#ifndef TIXML_USE_STL#ifndef TIXML_STRING_INCLUDED#define TIXML_STRING_INCLUDED#ifdef _MSC_VER#pragma warning( disable : 4530 )#pragma warning( disable : 4786 )#endif#include <assert.h>/*   TiXmlString is an emulation of the std::string template.   Its purpose is to allow compiling TinyXML on compilers with no or poor STL support.   Only the member functions relevant to the TinyXML project have been implemented.   The buffer allocation is made by a simplistic power of 2 like mechanism : if we increase   a string and there's no more room, we allocate a buffer twice as big as we need.*/class TiXmlString{  public :    // TiXmlString constructor, based on a string, mark explicit to force	// us to find unnecessary casting.    explicit TiXmlString (const char * instring);    // TiXmlString empty constructor    TiXmlString ()    {        allocated = 0;        cstring = NULL;        current_length = 0;    }    // TiXmlString copy constructor    explicit TiXmlString (const TiXmlString& copy);    // TiXmlString destructor    ~ TiXmlString ()    {        empty_it ();    }    // Convert a TiXmlString into a classical char *    const char * c_str () const    {        if (allocated)            return cstring;        return "";    }    // Return the length of a TiXmlString    size_t length () const	{		return ( allocated ) ? current_length : 0;	}    // TiXmlString = operator    void operator = (const char * content);    // = operator    void operator = (const TiXmlString & copy);    // += operator. Maps to append    TiXmlString& operator += (const char * suffix)    {        append (suffix);		return *this;    }    // += operator. Maps to append    TiXmlString& operator += (char single)    {        append (single);		return *this;    }    // += operator. Maps to append    TiXmlString& operator += (TiXmlString & suffix)    {        append (suffix);		return *this;    }    bool operator == (const TiXmlString & compare) const;    bool operator == (const char* compare) const;    bool operator < (const TiXmlString & compare) const;    bool operator > (const TiXmlString & compare) const;    // Checks if a TiXmlString is empty    bool empty () const    {        return length () ? false : true;    }    // single char extraction    const char& at (unsigned index) const    {        assert( index < length ());        return cstring [index];    }    // find a char in a string. Return TiXmlString::notfound if not found    unsigned find (char lookup) const    {        return find (lookup, 0);    }    // find a char in a string from an offset. Return TiXmlString::notfound if not found    unsigned find (char tofind, unsigned offset) const;    /*	Function to reserve a big amount of data when we know we'll need it. Be aware that this		function clears the content of the TiXmlString if any exists.    */    void reserve (unsigned size)    {        empty_it ();        if (size)        {            allocated = size;            cstring = new char [size];            cstring [0] = 0;            current_length = 0;        }    }    // [] operator     char& operator [] (unsigned index) const    {        assert( index < length ());        return cstring [index];    }    // Error value for find primitive     enum {	notfound = 0xffffffff,            npos = notfound };    void append (const char *str, size_t len );  protected :    // The base string    char * cstring;    // Number of chars allocated    size_t allocated;    // Current string size    size_t current_length;    // New size computation. It is simplistic right now : it returns twice the amount    // we need    size_t assign_new_size (size_t minimum_to_allocate)    {        return minimum_to_allocate * 2;    }    // Internal function that clears the content of a TiXmlString    void empty_it ()    {        if (cstring)            delete [] cstring;        cstring = NULL;        allocated = 0;        current_length = 0;    }    void append (const char *suffix );    // append function for another TiXmlString    void append (const TiXmlString & suffix)    {        append (suffix . c_str ());    }    // append for a single char.    void append (char single)    {        if ( cstring && current_length < (allocated-1) )		{			cstring[ current_length ] = single;			++current_length;			cstring[ current_length ] = 0;		}		else		{			char smallstr [2];			smallstr [0] = single;			smallstr [1] = 0;			append (smallstr);		}    }} ;/*    TiXmlOutStream is an emulation of std::ostream. It is based on TiXmlString.   Only the operators that we need for TinyXML have been developped.*/class TiXmlOutStream : public TiXmlString{public :    TiXmlOutStream () : TiXmlString () {}    // TiXmlOutStream << operator. Maps to TiXmlString::append    TiXmlOutStream & operator << (const char * in)    {        append (in);        return (* this);    }    // TiXmlOutStream << operator. Maps to TiXmlString::append    TiXmlOutStream & operator << (const TiXmlString & in)    {        append (in . c_str ());        return (* this);    }} ;#ifdef _MSC_VER#pragma warning( default : 4530 )#pragma warning( default : 4786 )#endif#endif	// TIXML_STRING_INCLUDED#endif	// TIXML_USE_STL