/* ========================================================================= *
 *                                                                           *
 *                               OpenMesh                                    *
 *           Copyright (c) 2001-2015, RWTH-Aachen University                 *
 *           Department of Computer Graphics and Multimedia                  *
 *                          All rights reserved.                             *
 *                            www.openmesh.org                               *
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 *---------------------------------------------------------------------------*
 * This file is part of OpenMesh.                                            *
 *---------------------------------------------------------------------------*
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 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
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 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
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 * 2. Redistributions in binary form must reproduce the above copyright      *
 *    notice, this list of conditions and the following disclaimer in the    *
 *    documentation and/or other materials provided with the distribution.   *
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 * 3. Neither the name of the copyright holder nor the names of its          *
 *    contributors may be used to endorse or promote products derived from   *
 *    this software without specific prior written permission.               *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A           *
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
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 * ========================================================================= */

/*===========================================================================*\
 *                                                                           *             
 *   $Revision: 1278 $                                                         *
 *   $Date: 2015-06-09 10:58:41 +0200 (Di, 09 Jun 2015) $                   *
 *                                                                           *
\*===========================================================================*/


//=== INCLUDES ================================================================


#include <OpenMesh/Core/System/config.h>
#include <OpenMesh/Core/IO/writer/BaseWriter.hh>
#include <algorithm>
#include <string>
#if defined(OM_CC_MIPS)
#  include <ctype.h>
#else
#  include <cctype>
#endif


//== NAMESPACES ===============================================================


namespace OpenMesh {
namespace IO {


//=== IMPLEMENTATION ==========================================================

#ifndef DOXY_IGNORE_THIS

static inline char tolower(char c)
{
  using namespace std;
  return ::tolower(c); 
}

#endif

//-----------------------------------------------------------------------------


bool 
BaseWriter::
can_u_write(const std::string& _filename) const 
{
  // get file extension
  std::string extension;
  std::string::size_type pos(_filename.rfind("."));

  if (pos != std::string::npos)
    extension = _filename.substr(pos+1, _filename.length()-pos-1);
  else
    extension = _filename; //check, if the whole filename defines the extension

  std::transform( extension.begin(), extension.end(),
	   extension.begin(), tolower );

  // locate extension in extension string
  return (get_extensions().find(extension) != std::string::npos);
}


//=============================================================================
} // namespace IO
} // namespace OpenMesh
//=============================================================================
