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Open Menu /contrib/gperf/src/keyword-list.h 
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/* This may look like C code, but it is really -*- C++ -*- */

/* Keyword list.

   Copyright (C) 2002 Free Software Foundation, Inc.
   Written by Bruno Haible <bruno@clisp.org>.

   This file is part of GNU GPERF.

   GNU GPERF is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   GNU GPERF 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; see the file COPYING.
   If not, write to the Free Software Foundation, Inc.,
   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

#ifndef keyword_list_h
#define keyword_list_h 1

#include "keyword.h"

/* List node of a linear list of Keyword.  */
class Keyword_List
{
public:
  /* Constructor.  */
                        Keyword_List (Keyword *car);

  /* Access to first element of list.  */
  Keyword *             first () const;
  /* Access to next element of list.  */
  Keyword_List *&       rest ();

protected:
  Keyword_List *        _cdr;
  Keyword * const       _car;
};

/* List node of a linear list of KeywordExt.  */
class KeywordExt_List : public Keyword_List
{
public:
  /* Constructor.  */
                        KeywordExt_List (KeywordExt *car);

  /* Access to first element of list.  */
  KeywordExt *          first () const;
  /* Access to next element of list.  */
  KeywordExt_List *&    rest ();
};

/* Copies a linear list, sharing the list elements.  */
extern Keyword_List * copy_list (Keyword_List *list);
extern KeywordExt_List * copy_list (KeywordExt_List *list);

/* Deletes a linear list, keeping the list elements in memory.  */
extern void delete_list (Keyword_List *list);

/* Sorts a linear list, given a comparison function.
   Note: This uses a variant of mergesort that is *not* a stable sorting
   algorithm.  */
extern Keyword_List * mergesort_list (Keyword_List *list,
                                      bool (*less) (Keyword *keyword1,
                                                    Keyword *keyword2));
extern KeywordExt_List * mergesort_list (KeywordExt_List *list,
                                         bool (*less) (KeywordExt *keyword1,
                                                       KeywordExt *keyword2));

#ifdef __OPTIMIZE__

#define INLINE inline
#include "keyword-list.icc"
#undef INLINE

#endif

#endif