1 /*
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright © 2020 Keith Packard
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 *
18 * 3. Neither the name of the copyright holder nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
33 * OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <sys/types.h>
38 #include <regex.h>
39 #include <stdbool.h>
40
41 #define MAX_MATCH 10
42
43 struct test {
44 const char *pattern;
45 const char *string;
46 int ret;
47 int nmatch;
48 regmatch_t matches[MAX_MATCH];
49 };
50
51 const struct test tests[] = {
52 { .pattern = ".", .string = "xxx",
53 .ret = 0, .nmatch = 1, .matches = { { .rm_so = 0, .rm_eo = 1 } }
54 },
55 { .pattern = ".*", .string = "xxx",
56 .ret = 0, .nmatch = 1, .matches = { { .rm_so = 0, .rm_eo = 3 } }
57 },
58 { .pattern = "(.)(.)(.)", .string = "xxx",
59 .ret = 0, .nmatch = 4, .matches = {
60 { .rm_so = 0, .rm_eo = 3 },
61 { .rm_so = 0, .rm_eo = 1 },
62 { .rm_so = 1, .rm_eo = 2 },
63 { .rm_so = 2, .rm_eo = 3 },
64 },
65 },
66 { .pattern = "x[a-c]*y", .string = "fooxaccabybar",
67 .ret = 0, .nmatch = 1, .matches = { { .rm_so = 3, .rm_eo = 10 } }
68 },
69 };
70
71 #define NTEST (sizeof(tests)/sizeof(tests[0]))
72
73 int
main(void)74 main(void)
75 {
76 unsigned t;
77 int m;
78 int errors = 0;
79 regmatch_t matches[MAX_MATCH];
80 regex_t regex;
81 int ret;
82 int run = 0;
83
84 for (t = 0; t < NTEST; t++) {
85 ret = regcomp(®ex, tests[t].pattern, REG_EXTENDED);
86 if (ret != 0) {
87 printf("expression \"%s\" failed to compile: %d\n", tests[t].pattern, ret);
88 errors++;
89 continue;
90 }
91 ret = regexec(®ex, tests[t].string, MAX_MATCH, matches, 0);
92 regfree(®ex);
93 if (ret != tests[t].ret) {
94 printf("match \"%s\" with \"%s\" bad result got %d != expect %d\n",
95 tests[t].pattern, tests[t].string, ret, tests[t].ret);
96 errors++;
97 continue;
98 }
99 if (ret == 0) {
100 for (m = 0; m < MAX_MATCH; m++) {
101 if (m < tests[t].nmatch) {
102 if (matches[m].rm_so != tests[t].matches[m].rm_so ||
103 matches[m].rm_eo != tests[t].matches[m].rm_eo) {
104 printf("match %d wrong range got (%td,%td) expect (%td,%td)\n",
105 m,
106 matches[m].rm_so,
107 matches[m].rm_eo,
108 tests[t].matches[m].rm_so,
109 tests[t].matches[m].rm_eo);
110 errors++;
111 }
112 } else {
113 if (matches[m].rm_so != -1) {
114 printf("match %d should be unused\n",
115 m);
116 errors++;
117 }
118 }
119 }
120 }
121 ++run;
122 }
123 printf("regex: %d tests %d errors\n", run, errors);
124 return errors;
125 }
126
