1/* This may look like C code, but it is really -*- C++ -*- */
2
3/* Keyword list.
4
5 Copyright (C) 2002 Free Software Foundation, Inc.
6 Written by Bruno Haible <bruno@clisp.org>.
7
8 This file is part of GNU GPERF.
9
10 This program is free software: you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22
23#ifndef keyword_list_h
24#define keyword_list_h 1
25
26#include "keyword.h"
27
28/* List node of a linear list of Keyword. */
29class Keyword_List
30{
31public:
32 /* Constructor. */
33 Keyword_List (Keyword *car);
34
35 /* Access to first element of list. */
36 Keyword * first () const;
37 /* Access to next element of list. */
38 Keyword_List *& rest ();
39
40protected:
41 Keyword_List * _cdr;
42 Keyword * const _car;
43};
44
45/* List node of a linear list of KeywordExt. */
46class KeywordExt_List : public Keyword_List
47{
48public:
49 /* Constructor. */
50 KeywordExt_List (KeywordExt *car);
51
52 /* Access to first element of list. */
53 KeywordExt * first () const;
54 /* Access to next element of list. */
55 KeywordExt_List *& rest ();
56};
57
58/* Copies a linear list, sharing the list elements. */
59extern Keyword_List * copy_list (Keyword_List *list);
60extern KeywordExt_List * copy_list (KeywordExt_List *list);
61
62/* Deletes a linear list, keeping the list elements in memory. */
63extern void delete_list (Keyword_List *list);
64
65/* Sorts a linear list, given a comparison function.
66 Note: This uses a variant of mergesort that is *not* a stable sorting
67 algorithm. */
68extern Keyword_List * mergesort_list (Keyword_List *list,
69 bool (*less) (Keyword *keyword1,
70 Keyword *keyword2));
71extern KeywordExt_List * mergesort_list (KeywordExt_List *list,
72 bool (*less) (KeywordExt *keyword1,
73 KeywordExt *keyword2));
74
75#ifdef __OPTIMIZE__
76
77#define INLINE inline
78#include "keyword-list.icc"
79#undef INLINE
80
81#endif
82
83#endif
84