source: vendor/glibc-tests/glibc/posix/tst-regex2.c

Last change on this file was 2036, checked in by bird, 20 years ago

Initial revision
  • Property cvs2svn:cvs-rev set to 1.1
  • Property svn:eol-style set to native
  • Property svn:executable set to *
  • Property svn:keywords set to Author Date Id Revision
File size: 5.4 KB
Line 
1#include <fcntl.h>
2#include <locale.h>
3#include <regex.h>
4#include <stdio.h>
5#include <stdlib.h>
6#include <string.h>
7#include <sys/stat.h>
8#include <time.h>
9#include <unistd.h>
10
11#if defined _POSIX_CPUTIME && _POSIX_CPUTIME >= 0
12static clockid_t cl;
13static int use_clock;
14#endif
15
16static int
17do_test (void)
18{
19#if defined _POSIX_CPUTIME && _POSIX_CPUTIME >= 0
20# if _POSIX_CPUTIME == 0
21 if (sysconf (_SC_CPUTIME) < 0)
22 use_clock = 0;
23 else
24# endif
25 /* See whether we can use the CPU clock. */
26 use_clock = clock_getcpuclockid (0, &cl) == 0;
27#endif
28
29 static const char *pat[] = {
30 ".?.?.?.?.?.?.?Log\\.13",
31 "(.?)(.?)(.?)(.?)(.?)(.?)(.?)Log\\.13",
32 "((((((((((.?))))))))))((((((((((.?))))))))))((((((((((.?))))))))))"
33 "((((((((((.?))))))))))((((((((((.?))))))))))((((((((((.?))))))))))"
34 "((((((((((.?))))))))))Log\\.13" };
35
36 int fd = open ("../ChangeLog.14", O_RDONLY);
37 if (fd < 0)
38 {
39 printf ("Couldn't open ChangeLog.14: %m\n");
40 return 1;
41 }
42
43 struct stat64 st;
44 if (fstat64 (fd, &st) < 0)
45 {
46 printf ("Couldn't fstat ChangeLog.14: %m\n");
47 return 1;
48 }
49
50 char *buf = malloc (st.st_size + 1);
51 if (buf == NULL)
52 {
53 printf ("Couldn't allocate buffer: %m\n");
54 return 1;
55 }
56
57 if (read (fd, buf, st.st_size) != (ssize_t) st.st_size)
58 {
59 puts ("Couldn't read ChangeLog.14");
60 return 1;
61 }
62
63 close (fd);
64 buf[st.st_size] = '\0';
65
66 setlocale (LC_ALL, "de_DE.UTF-8");
67
68 char *string = buf;
69 size_t len = st.st_size;
70
71#ifndef WHOLE_FILE_TIMING
72 /* Don't search the whole file normally, it takes too long. */
73 if (len > 500000 + 64)
74 {
75 string += 500000;
76 len -= 500000;
77 }
78#endif
79
80 for (int testno = 0; testno < 4; ++testno)
81 for (int i = 0; i < sizeof (pat) / sizeof (pat[0]); ++i)
82 {
83 printf ("test %d pattern %d", testno, i);
84
85 regex_t rbuf;
86 struct re_pattern_buffer rpbuf;
87 int err;
88 if (testno < 2)
89 {
90 err = regcomp (&rbuf, pat[i],
91 REG_EXTENDED | (testno ? REG_NOSUB : 0));
92 if (err != 0)
93 {
94 putchar ('\n');
95 char errstr[300];
96 regerror (err, &rbuf, errstr, sizeof (errstr));
97 puts (errstr);
98 return err;
99 }
100 }
101 else
102 {
103 re_set_syntax (RE_SYNTAX_POSIX_EGREP
104 | (testno == 3 ? RE_NO_SUB : 0));
105
106 memset (&rpbuf, 0, sizeof (rpbuf));
107 const char *s = re_compile_pattern (pat[i], strlen (pat[i]),
108 &rpbuf);
109 if (s != NULL)
110 {
111 printf ("\n%s\n", s);
112 return 1;
113 }
114
115 /* Just so that this can be tested with earlier glibc as well. */
116 if (testno == 3)
117 rpbuf.no_sub = 1;
118 }
119
120#if defined _POSIX_CPUTIME && _POSIX_CPUTIME >= 0
121 struct timespec start, stop;
122 if (use_clock)
123 use_clock = clock_gettime (cl, &start) == 0;
124#endif
125
126 if (testno < 2)
127 {
128 regmatch_t pmatch[71];
129 err = regexec (&rbuf, string, 71, pmatch, 0);
130 if (err == REG_NOMATCH)
131 {
132 puts ("\nregexec failed");
133 return 1;
134 }
135
136 if (testno == 0)
137 {
138 if (pmatch[0].rm_eo != pmatch[0].rm_so + 13
139 || pmatch[0].rm_eo > len
140 || pmatch[0].rm_so < len - 100
141 || strncmp (string + pmatch[0].rm_so,
142 " ChangeLog.13 for earlier changes",
143 sizeof " ChangeLog.13 for earlier changes" - 1)
144 != 0)
145 {
146 puts ("\nregexec without REG_NOSUB did not find the correct match");
147 return 1;
148 }
149
150 if (i > 0)
151 for (int j = 0, l = 1; j < 7; ++j)
152 for (int k = 0; k < (i == 1 ? 1 : 10); ++k, ++l)
153 if (pmatch[l].rm_so != pmatch[0].rm_so + j
154 || pmatch[l].rm_eo != pmatch[l].rm_so + 1)
155 {
156 printf ("\npmatch[%d] incorrect\n", l);
157 return 1;
158 }
159 }
160 }
161 else
162 {
163 struct re_registers regs;
164
165 memset (&regs, 0, sizeof (regs));
166 int match = re_search (&rpbuf, string, len, 0, len,
167 &regs);
168 if (match < 0)
169 {
170 puts ("\nre_search failed");
171 return 1;
172 }
173
174 if (match + 13 > len
175 || match < len - 100
176 || strncmp (string + match,
177 " ChangeLog.13 for earlier changes",
178 sizeof " ChangeLog.13 for earlier changes" - 1)
179 != 0)
180 {
181 puts ("\nre_search did not find the correct match");
182 return 1;
183 }
184
185 if (testno == 2)
186 {
187 if (regs.num_regs != 2 + (i == 0 ? 0 : i == 1 ? 7 : 70))
188 {
189 printf ("\nincorrect num_regs %d\n", regs.num_regs);
190 return 1;
191 }
192
193 if (regs.start[0] != match || regs.end[0] != match + 13)
194 {
195 printf ("\nincorrect regs.{start,end}[0] = { %d, %d}\n",
196 regs.start[0], regs.end[0]);
197 return 1;
198 }
199
200 if (regs.start[regs.num_regs - 1] != -1
201 || regs.end[regs.num_regs - 1] != -1)
202 {
203 puts ("\nincorrect regs.{start,end}[num_regs - 1]");
204 return 1;
205 }
206
207 if (i > 0)
208 for (int j = 0, l = 1; j < 7; ++j)
209 for (int k = 0; k < (i == 1 ? 1 : 10); ++k, ++l)
210 if (regs.start[l] != match + j
211 || regs.end[l] != regs.start[l] + 1)
212 {
213 printf ("\nregs.{start,end}[%d] incorrect\n", l);
214 return 1;
215 }
216 }
217 }
218
219#if defined _POSIX_CPUTIME && _POSIX_CPUTIME >= 0
220 if (use_clock)
221 use_clock = clock_gettime (cl, &stop) == 0;
222 if (use_clock)
223 {
224 stop.tv_sec -= start.tv_sec;
225 if (stop.tv_nsec < start.tv_nsec)
226 {
227 stop.tv_sec--;
228 stop.tv_nsec += 1000000000 - start.tv_nsec;
229 }
230 else
231 stop.tv_nsec -= start.tv_nsec;
232 printf (": %ld.%09lds\n", (long) stop.tv_sec, (long) stop.tv_nsec);
233 }
234 else
235#endif
236 putchar ('\n');
237
238 if (testno < 2)
239 regfree (&rbuf);
240 else
241 regfree (&rpbuf);
242 }
243
244 return 0;
245}
246
247#define TIMEOUT 20
248#define TEST_FUNCTION do_test ()
249#include "../test-skeleton.c"
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