1/*
2 * Copyright (C) 1984-2017  Mark Nudelman
3 *
4 * You may distribute under the terms of either the GNU General Public
5 * License or the Less License, as specified in the README file.
6 *
7 * For more information, see the README file.
8 */
9
10#if HAVE_GNU_REGEX
11#define __USE_GNU 1
12#include <regex.h>
13#define PATTERN_TYPE          struct re_pattern_buffer *
14#define CLEAR_PATTERN(name)   name = NULL
15#endif
16
17#if HAVE_POSIX_REGCOMP
18#include <regex.h>
19#ifdef REG_EXTENDED
20extern int less_is_more;
21#define REGCOMP_FLAG    (less_is_more ? 0 : REG_EXTENDED)
22#else
23#define REGCOMP_FLAG    0
24#endif
25#define PATTERN_TYPE          regex_t *
26#define CLEAR_PATTERN(name)   name = NULL
27#endif
28
29#if HAVE_PCRE
30#include <pcre.h>
31#define PATTERN_TYPE          pcre *
32#define CLEAR_PATTERN(name)   name = NULL
33#endif
34
35#if HAVE_RE_COMP
36char *re_comp LESSPARAMS ((char*));
37int re_exec LESSPARAMS ((char*));
38#define PATTERN_TYPE          int
39#define CLEAR_PATTERN(name)   name = 0
40#endif
41
42#if HAVE_REGCMP
43char *regcmp LESSPARAMS ((char*));
44char *regex LESSPARAMS ((char**, char*));
45extern char *__loc1;
46#define PATTERN_TYPE          char **
47#define CLEAR_PATTERN(name)   name = NULL
48#endif
49
50#if HAVE_V8_REGCOMP
51#include "regexp.h"
52extern int reg_show_error;
53#define PATTERN_TYPE          struct regexp *
54#define CLEAR_PATTERN(name)   name = NULL
55#endif
56
57#if NO_REGEX
58#define PATTERN_TYPE          void *
59#define CLEAR_PATTERN(name)
60#endif
61