1/* Regular expression tests.
2 Copyright (C) 2002-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <sys/types.h>
20#include <mcheck.h>
21#include <regex.h>
22#include <stdio.h>
23#include <stdlib.h>
24
25/* Tests supposed to not match. */
26struct
27{
28 const char *pattern;
29 const char *string;
30 int flags, nmatch;
31} tests[] = {
32 { "^<\\([^~]*\\)\\([^~]\\)[^~]*~\\1\\(.\\).*|=.*\\3.*\\2",
33 "<,.8~2,~so-|=-~.0,123456789<><", REG_NOSUB, 0 },
34 /* In ERE, all carets must be treated as anchors. */
35 { "a^b", "a^b", REG_EXTENDED, 0 }
36};
37
38int
39main (void)
40{
41 regex_t re;
42 regmatch_t rm[4];
43 size_t i;
44 int n, ret = 0;
45
46 mtrace ();
47
48 for (i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
49 {
50 n = regcomp (preg: &re, pattern: tests[i].pattern, cflags: tests[i].flags);
51 if (n != 0)
52 {
53 char buf[500];
54 regerror (errcode: n, preg: &re, errbuf: buf, errbuf_size: sizeof (buf));
55 printf (format: "regcomp %zd failed: %s\n", i, buf);
56 ret = 1;
57 continue;
58 }
59
60 if (! regexec (preg: &re, String: tests[i].string, nmatch: tests[i].nmatch,
61 pmatch: tests[i].nmatch ? rm : NULL, eflags: 0))
62 {
63 printf (format: "regexec %zd incorrectly matched\n", i);
64 ret = 1;
65 }
66
67 regfree (preg: &re);
68 }
69
70 return ret;
71}
72

source code of glibc/posix/bug-regex12.c