1/*
2 * Copyright (C) 1984-2023  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 SET_NULL_PATTERN(name)   name = NULL
15#endif
16
17/* ---- POSIX ---- */
18#if HAVE_POSIX_REGCOMP
19#include <regex.h>
20#ifdef REG_EXTENDED
21extern int less_is_more;
22#define REGCOMP_FLAG    (less_is_more ? 0 : REG_EXTENDED)
23#else
24#define REGCOMP_FLAG             0
25#endif
26#define PATTERN_TYPE             regex_t *
27#define SET_NULL_PATTERN(name)   name = NULL
28#define re_handles_caseless      TRUE
29#endif
30
31/* ---- PCRE ---- */
32#if HAVE_PCRE
33#include <pcre.h>
34#define PATTERN_TYPE             pcre *
35#define SET_NULL_PATTERN(name)   name = NULL
36#define re_handles_caseless      TRUE
37#endif
38
39/* ---- PCRE2 ---- */
40#if HAVE_PCRE2
41#define PCRE2_CODE_UNIT_WIDTH 8
42#include <pcre2.h>
43#define PATTERN_TYPE             pcre2_code *
44#define SET_NULL_PATTERN(name)   name = NULL
45#define re_handles_caseless      TRUE
46#endif
47
48/* ---- RE_COMP  ---- */
49#if HAVE_RE_COMP
50char *re_comp(char*);
51int re_exec(char*);
52#define PATTERN_TYPE             int
53#define SET_NULL_PATTERN(name)   name = 0
54#endif
55
56/* ---- REGCMP  ---- */
57#if HAVE_REGCMP
58char *regcmp(char*);
59char *regex(char**, char*);
60extern char *__loc1;
61#define PATTERN_TYPE             char **
62#define SET_NULL_PATTERN(name)   name = NULL
63#endif
64
65/* ---- REGCOMP  ---- */
66#if HAVE_V8_REGCOMP
67#include "regexp.h"
68extern int reg_show_error;
69#define PATTERN_TYPE             struct regexp *
70#define SET_NULL_PATTERN(name)   name = NULL
71#endif
72
73/* ---- NONE  ---- */
74#if NO_REGEX
75#define PATTERN_TYPE             void *
76#define SET_NULL_PATTERN(name)
77#endif
78
79#ifndef re_handles_caseless
80#define re_handles_caseless      FALSE
81#endif
82