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6c805a2b | 1 | /* Regular expression tests. |
dff8da6b | 2 | Copyright (C) 2003-2024 Free Software Foundation, Inc. |
6c805a2b | 3 | This file is part of the GNU C Library. |
6c805a2b UD |
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 | |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
6c805a2b UD |
18 | |
19 | #include <sys/types.h> | |
20 | #include <mcheck.h> | |
21 | #include <regex.h> | |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | ||
26 | void | |
27 | frob_escapes (char *src, int pattern) | |
28 | { | |
29 | char *dst; | |
30 | ||
31 | for (dst = src; *src != '\0'; dst++, src++) | |
32 | { | |
33 | if (*src == '\\') | |
34 | { | |
35 | switch (src[1]) | |
36 | { | |
37 | case 't': | |
38 | src++; | |
39 | *dst = '\t'; | |
40 | continue; | |
41 | case 'n': | |
42 | src++; | |
43 | *dst = '\n'; | |
44 | continue; | |
45 | case 'r': | |
46 | src++; | |
47 | *dst = '\r'; | |
48 | continue; | |
49 | case '\\': | |
50 | case '^': | |
51 | case '{': | |
52 | case '|': | |
53 | case '}': | |
54 | if (!pattern) | |
55 | { | |
56 | src++; | |
57 | *dst = *src; | |
58 | continue; | |
59 | } | |
60 | break; | |
61 | } | |
62 | } | |
63 | if (src != dst) | |
64 | *dst = *src; | |
65 | } | |
66 | *dst = '\0'; | |
67 | } | |
68 | ||
69 | int | |
70 | main (int argc, char **argv) | |
71 | { | |
72 | int ret = 0, n; | |
73 | char *line = NULL; | |
74 | size_t line_len = 0; | |
75 | ssize_t len; | |
76 | FILE *f; | |
77 | char *pattern, *string; | |
78 | int flags = REG_EXTENDED; | |
79 | int eflags = 0; | |
80 | regex_t re; | |
81 | regmatch_t rm[20]; | |
82 | ||
83 | mtrace (); | |
84 | ||
85 | if (argc < 2) | |
86 | { | |
87 | fprintf (stderr, "Missing test filename\n"); | |
88 | return 1; | |
89 | } | |
90 | ||
91 | f = fopen (argv[1], "r"); | |
92 | if (f == NULL) | |
93 | { | |
94 | fprintf (stderr, "Couldn't open %s\n", argv[1]); | |
95 | return 1; | |
96 | } | |
97 | ||
98 | while ((len = getline (&line, &line_len, f)) > 0) | |
99 | { | |
100 | char *p, *q; | |
101 | int i; | |
102 | ||
103 | if (line[len - 1] == '\n') | |
104 | line[--len] = '\0'; | |
105 | ||
106 | puts (line); | |
107 | ||
108 | if (line[0] == ';') | |
109 | continue; | |
110 | ||
111 | if (line[0] == '\0') | |
112 | continue; | |
113 | ||
114 | if (line[0] == '-') | |
115 | { | |
116 | if (strstr (line, "REG_BASIC")) | |
117 | flags = 0; | |
118 | else | |
119 | flags = REG_EXTENDED; | |
120 | if (strstr (line, "REG_ICASE")) | |
121 | flags |= REG_ICASE; | |
122 | if (strstr (line, "REG_NEWLINE")) | |
123 | flags |= REG_NEWLINE; | |
124 | eflags = 0; | |
125 | if (strstr (line, "REG_NOTBOL")) | |
126 | eflags |= REG_NOTBOL; | |
127 | if (strstr (line, "REG_NOTEOL")) | |
128 | eflags |= REG_NOTEOL; | |
129 | continue; | |
130 | } | |
131 | ||
132 | pattern = line + strspn (line, " \t"); | |
133 | if (*pattern == '\0') | |
134 | continue; | |
135 | p = pattern + strcspn (pattern, " \t"); | |
136 | if (*p == '\0') | |
137 | continue; | |
138 | *p++ = '\0'; | |
139 | ||
140 | string = p + strspn (p, " \t"); | |
141 | if (*string == '\0') | |
142 | continue; | |
143 | if (*string == '"') | |
144 | { | |
145 | string++; | |
146 | p = strchr (string, '"'); | |
147 | if (p == NULL) | |
148 | continue; | |
149 | *p++ = '\0'; | |
150 | } | |
151 | else | |
152 | { | |
153 | p = string + strcspn (string, " \t"); | |
154 | if (*string == '!') | |
155 | string = NULL; | |
156 | else if (*p == '\0') | |
157 | continue; | |
158 | else | |
159 | *p++ = '\0'; | |
160 | } | |
161 | ||
162 | frob_escapes (pattern, 1); | |
163 | if (string != NULL) | |
164 | frob_escapes (string, 0); | |
165 | ||
166 | n = regcomp (&re, pattern, flags); | |
167 | if (n != 0) | |
168 | { | |
169 | if (string != NULL) | |
170 | { | |
171 | char buf[500]; | |
172 | regerror (n, &re, buf, sizeof (buf)); | |
173 | printf ("FAIL regcomp unexpectedly failed: %s\n", | |
174 | buf); | |
175 | ret = 1; | |
176 | } | |
177 | continue; | |
178 | } | |
179 | else if (string == NULL) | |
180 | { | |
181 | regfree (&re); | |
182 | puts ("FAIL regcomp unpexpectedly succeeded"); | |
183 | ret = 1; | |
184 | continue; | |
185 | } | |
186 | ||
187 | if (regexec (&re, string, 20, rm, eflags)) | |
188 | { | |
189 | for (i = 0; i < 20; ++i) | |
190 | { | |
191 | rm[i].rm_so = -1; | |
192 | rm[i].rm_eo = -1; | |
193 | } | |
194 | } | |
195 | ||
196 | regfree (&re); | |
197 | ||
198 | for (i = 0; i < 20 && *p != '\0'; ++i) | |
199 | { | |
200 | int rm_so, rm_eo; | |
201 | ||
202 | rm_so = strtol (p, &q, 10); | |
203 | if (p == q) | |
204 | break; | |
205 | p = q; | |
206 | ||
207 | rm_eo = strtol (p, &q, 10); | |
208 | if (p == q) | |
209 | break; | |
210 | p = q; | |
211 | ||
212 | if (rm[i].rm_so != rm_so || rm[i].rm_eo != rm_eo) | |
213 | { | |
214 | printf ("FAIL rm[%d] %d..%d != expected %d..%d\n", | |
215 | i, rm[i].rm_so, rm[i].rm_eo, rm_so, rm_eo); | |
216 | ret = 1; | |
217 | break; | |
218 | } | |
219 | } | |
220 | } | |
221 | ||
222 | free (line); | |
223 | fclose (f); | |
224 | return ret; | |
225 | } |