sprint/container/alias_map.h

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/******************************************************************************
*   sprint::alias
*
*   Copyright (C) 2005-2011  Paolo Medici <www.pmx.it>
*
*  This library is free software; you can redistribute it and/or
*  modify it under the terms of the GNU Lesser General Public
*  License as published by the Free Software Foundation; either
*  version 2.1 of the License, or (at your option) any later version.
*
*  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
*  Lesser General Public License for more details.
*
*  You should have received a copy of the GNU Lesser General Public
*  License along with this library; if not, write to the Free Software
*  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*
*******************************************************************************/
#ifndef _SPRINT_ALIASMAP_H
#define _SPRINT_ALIASMAP_H

#include <map>
#include <sprint/sysdef.h>
#include <sprint/string/rstring.h>

namespace sprint {

class alias_map {
  // TODO: Comparison function
  char *pool;
  unsigned int cur_pos;
  unsigned int pool_size;
  
  struct ltstr
  {
    bool operator()(const char *s1, const char *s2) const
      {
        return strcasecmp(s1, s2) < 0;
      }
  };
  
  typedef std::map<const char *, int, ltstr> map;
  typedef std::map<int, const char *> rmap;
    
  // unique alias name
  const char *name;
  
  // storage
        map ref;
        rmap rref;
        
        // buffer for IO (contain 32 bit int string)
        char buffer[16];
        
protected:
  void resize(unsigned int __new_size); 
        
public:
  AliasMap(const char *_name=NULL);
  AliasMap(const AliasMap &src);
  ~AliasMap();

        bool push(const char *string, int val);
  
  int operator[](const char *string);
  const char *operator [] (int value);

  bool load(const char *file);
  bool save(const char *file);
};

extern void RegisterAlias(Alias *als);

}

#endif