OSGPathHandler.h

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/*---------------------------------------------------------------------------*\
 *                                OpenSG                                     *
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 *             Copyright (C) 2000-2002 by the OpenSG Forum                   *
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\*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*\
 *                                License                                    *
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 * This library is free software; you can redistribute it and/or modify it   *
 * under the terms of the GNU Library General Public License as published    *
 * by the Free Software Foundation, version 2.                               *
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 * This library is distributed in the hope that it will be useful, but       *
 * WITHOUT ANY WARRANTY; without even the implied warranty of                *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
 * Library General Public License for more details.                          *
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 * You should have received a copy of the GNU Library General Public         *
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\*---------------------------------------------------------------------------*/

#ifndef _OSGPATHHANDLER_H
#define _OSGPATHHANDLER_H
#ifdef __sgi
#pragma once
#endif

#include <stdlib.h>
#include <fcntl.h>
#include <list>
#include <string>

#ifndef WIN32
#include <unistd.h>
#endif

#include <OSGBaseTypes.h>
#include <OSGConfig.h>
#include <OSGLog.h>

OSG_BEGIN_NAMESPACE

class OSG_BASE_DLLMAPPING PathHandler
{
    /*==========================  PUBLIC  =================================*/

  public:

    /*---------------------------------------------------------------------*/
    PathHandler(void);
    PathHandler(const Char8 *initialPathList);

    /*---------------------------------------------------------------------*/
    virtual ~PathHandler(void); 

    /*---------------------------------------------------------------------*/
          std::string  findFile   (const Char8 *fileName);

    const std::string &getBaseFile(      void           ) const;

    /*---------------------------------------------------------------------*/
    void push_backPath       (const Char8 *pathList);
    void push_backCurrentDir (      void           );

    void push_backUnixPath   (const Char8 *pathList);
    void push_backWin32Path  (const Char8 *pathList);

    void push_frontPath      (const Char8 *pathList);
    void push_frontCurrentDir(      void           );

    void push_frontUnixPath  (const Char8 *pathList);
    void push_frontWin32Path (const Char8 *pathList);

    void subPath             (const Char8 *pathList);
    void subUnixPath         (const Char8 *pathList);
    void subWin32Path        (const Char8 *pathList);

    void clearPathList       (      void           );

    void setBaseFile         (const Char8 *fileName);
    void clearBaseFile       (      void           );

    std::string extractPath         (const Char8       *szFilename);

    /*---------------------------------------------------------------------*/
    void dump(void);

    /*=========================  PROTECTED  ===============================*/

  protected:

    enum PathType
    {
        Win32Path     = 0x0001,
        UnixPath      = 0x0002,

        AbsPath       = 0x0100,

        PlatformMask  = 0x00FF,
        TypeMask      = 0xFF00
    };
    
    typedef std::list<std::string>           PathList;
    typedef std::list<std::string>::iterator PathListIter;

    /*---------------------------------------------------------------------*/
    static const Char8       _dirSepWin32;
    static const Char8       _pathSepWin32;

    static const Char8       _dirSepUnix;
    static const Char8       _pathSepUnix;

    static const Char8       _dirSep;
    static const Char8       _pathSep;

    static const Char8       _dirSepOther;
    static const Char8       _pathSepOther;

    /*---------------------------------------------------------------------*/
    PathList    _pathList;
    std::string _baseFilePath;

    /*---------------------------------------------------------------------*/
    void        validateList        (      PathList    &pathList  );

    PathType    analysePathList     (const Char8       *pathList  );
    PathType    analysePath         (const Char8       *path      );

    void        expandWin32Path     (      std::string &path      );
    void        expandUnixPath      (      std::string &path      );
    
    void        push_backPathList   (      PathList    &pathList  );
    void        push_frontPathList  (      PathList    &pathList  );

    void        subPathList         (const PathList    &pathList  );

    void        convertPath         (      std::string &path      );

    void        convertWin32PathList(      PathList    &result    );
    void        convertUnixPathList (      PathList    &result    );

    void        splitPathList       (const Char8       *pathList, 
                                     const Char8        pathSep,
                                           PathList    &result    );
    void        parsePathList       (const Char8       *pathList, 
                                           PathList    &result    );
    void        parseUnixPathList   (const Char8       *pathList, 
                                           PathList    &result    );
    void        parseWin32PathList  (const Char8       *pathList, 
                                           PathList    &result    );

    /*==========================  PRIVATE  ================================*/

  private:

    PathHandler(const PathHandler &source);
    void operator =(const PathHandler &source);
};

OSG_END_NAMESPACE

#endif /* _OSGPATHHANDLER_H */

#define OSGPATHHANDLER_HEADER_CVSID "@(#)$Id: $"

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