File: bug-regex20.c

package info (click to toggle)
glibc 2.28-8
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, experimental, sid
  • size: 271,788 kB
  • sloc: ansic: 1,008,637; asm: 259,607; makefile: 11,271; sh: 10,477; python: 6,910; cpp: 4,992; perl: 2,258; awk: 2,005; yacc: 290; pascal: 182; sed: 73
file content (286 lines) | stat: -rw-r--r-- 11,234 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
/* Test for UTF-8 regular expression optimizations.
   Copyright (C) 2003-2018 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <sys/types.h>
#include <mcheck.h>
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>

#define RE_NO_INTERNAL_PROTOTYPES 1
#include "regex_internal.h"

#define BRE RE_SYNTAX_POSIX_BASIC
#define ERE RE_SYNTAX_POSIX_EXTENDED

static struct
{
  int syntax;
  const char *pattern;
  const char *string;
  int res, optimize;
} tests[] = {
  /* \xc3\x84		LATIN CAPITAL LETTER A WITH DIAERESIS
     \xc3\x96		LATIN CAPITAL LETTER O WITH DIAERESIS
     \xc3\xa4		LATIN SMALL LETTER A WITH DIAERESIS
     \xc3\xb6		LATIN SMALL LETTER O WITH DIAERESIS
     \xe2\x80\x94	EM DASH  */
  /* Should be optimized.  */
  {BRE, "foo", "b\xc3\xa4rfoob\xc3\xa4z", 4, 1},
  {BRE, "b\xc3\xa4z", "b\xc3\xa4rfoob\xc3\xa4z", 7, 1},
  {BRE, "b\xc3\xa4*z", "b\xc3\xa4rfoob\xc3\xa4z", 7, 1},
  {BRE, "b\xc3\xa4*z", "b\xc3\xa4rfoobz", 7, 1},
  {BRE, "b\xc3\xa4\\+z", "b\xc3\xa4rfoob\xc3\xa4\xc3\xa4z", 7, 1},
  {BRE, "b\xc3\xa4\\?z", "b\xc3\xa4rfoob\xc3\xa4z", 7, 1},
  {BRE, "b\xc3\xa4\\{1,2\\}z", "b\xc3\xa4rfoob\xc3\xa4z", 7, 1},
  {BRE, "^x\\|xy*z$", "\xc3\xb6xyyz", 2, 1},
  {BRE, "^x\\\\y\\{6\\}z\\+", "x\\yyyyyyzz\xc3\xb6", 0, 1},
  {BRE, "^x\\\\y\\{2,36\\}z\\+", "x\\yzz\xc3\xb6", -1, 1},
  {BRE, "^x\\\\y\\{,3\\}z\\+", "x\\yyyzz\xc3\xb6", 0, 1},
  {BRE, "^x\\|x\xc3\xa4*z$", "\xc3\xb6x\xc3\xa4\xc3\xa4z", 2, 1},
  {BRE, "^x\\\\\xc3\x84\\{6\\}z\\+",
   "x\\\xc3\x84\xc3\x84\xc3\x84\xc3\x84\xc3\x84\xc3\x84zz\xc3\xb6", 0, 1},
  {BRE, "^x\\\\\xc3\x84\\{2,36\\}z\\+", "x\\\xc3\x84zz\xc3\xb6", -1, 1},
  {BRE, "^x\\\\\xc3\x84\\{,3\\}z\\+",
   "x\\\xc3\x84\xc3\x84\xc3\x84zz\xc3\xb6", 0, 1},
  {BRE, "x[C]y", "axCy", 1, 1},
  {BRE, "x[ABC]y", "axCy", 1, 1},
  {BRE, "\\`x\\|z\\'", "x\xe2\x80\x94", 0, 1},
  {BRE, "\\(xy\\)z\\1a\\1", "\xe2\x80\x94xyzxyaxy\xc3\x84", 3, 1},
  {BRE, "xy\\?z", "\xc3\x84xz\xc3\xb6", 2, 1},
  {BRE, "\\`\xc3\x84\\|z\\'", "\xc3\x84\xe2\x80\x94", 0, 1},
  {BRE, "\\(x\xc3\x84\\)z\\1\x61\\1",
   "\xe2\x80\x94x\xc3\x84zx\xc3\x84\x61x\xc3\x84\xc3\x96", 3, 1},
  {BRE, "x\xc3\x96\\?z", "\xc3\x84xz\xc3\xb6", 2, 1},
  {BRE, "x.y", "ax\xe2\x80\x94yz", 1, 1},
  {BRE, "x.*z", "\xc3\x84xz", 2, 1},
  {BRE, "x.*z", "\xc3\x84x\xe2\x80\x94z", 2, 1},
  {BRE, "x.*z", "\xc3\x84x\xe2\x80\x94y\xf1\x90\x80\x90z", 2, 1},
  {BRE, "x.*z", "\xc3\x84x\xe2\x80\x94\xc3\x94\xf1\x90\x80\x90z", 2, 1},
  {BRE, "x.\\?z", "axz", 1, 1},
  {BRE, "x.\\?z", "axyz", 1, 1},
  {BRE, "x.\\?z", "ax\xc3\x84z", 1, 1},
  {BRE, "x.\\?z", "ax\xe2\x80\x94z", 1, 1},
  {BRE, "x.\\?z", "ax\xf0\x9d\x80\x80z", 1, 1},
  {BRE, "x.\\?z", "ax\xf9\x81\x82\x83\x84z", 1, 1},
  {BRE, "x.\\?z", "ax\xfd\xbf\xbf\xbf\xbf\xbfz", 1, 1},
  {BRE, ".", "y", 0, 1},
  {BRE, ".", "\xc3\x84", 0, 1},
  {BRE, ".", "\xe2\x80\x94", 0, 1},
  {BRE, ".", "\xf0\x9d\x80\x80", 0, 1},
  {BRE, ".", "\xf9\x81\x82\x83\x84", 0, 1},
  {BRE, ".", "\xfd\xbf\xbf\xbf\xbf\xbf", 0, 1},
  {BRE, "x.\\?z", "axyyz", -1, 1},
  {BRE, "x.\\?z", "ax\xc3\x84\xc3\x96z", -1, 1},
  {BRE, "x.\\?z", "ax\xe2\x80\x94\xc3\xa4z", -1, 1},
  {BRE, "x.\\?z", "ax\xf0\x9d\x80\x80yz", -1, 1},
  {BRE, "x.\\?z", "ax\xf9\x81\x82\x83\x84\xf0\x9d\x80\x81z", -1, 1},
  {BRE, "x.\\?z", "ax\xfd\xbf\xbf\xbf\xbf\xbf\xc3\x96z", -1, 1},
  {BRE, "x.\\+z", "\xe2\x80\x94xz", -1, 1},
  {BRE, "x.\\+z", "\xe2\x80\x94xyz", 3, 1},
  {BRE, "x.\\+z", "\xe2\x80\x94x\xc3\x84y\xe2\x80\x94z", 3, 1},
  {BRE, "x.\\+z", "\xe2\x80\x94x\xe2\x80\x94z", 3, 1},
  {BRE, "x.\\+z", "\xe2\x80\x94x\xf0\x9d\x80\x80\xc3\x84z", 3, 1},
  {BRE, "x.\\+z", "\xe2\x80\x94x.~\xe2\x80\x94\xf9\x81\x82\x83\x84z", 3, 1},
  {BRE, "x.\\+z", "\xe2\x80\x94x\xfd\xbf\xbf\xbf\xbf\xbfz", 3, 1},
  {BRE, "x.\\{1,2\\}z", "\xe2\x80\x94xz", -1, 1},
  {BRE, "x.\\{1,2\\}z", "\xe2\x80\x94x\xc3\x96y\xc3\xa4z", -1, 1},
  {BRE, "x.\\{1,2\\}z", "\xe2\x80\x94xyz", 3, 1},
  {BRE, "x.\\{1,2\\}z", "\xe2\x80\x94x\xc3\x84\xe2\x80\x94z", 3, 1},
  {BRE, "x.\\{1,2\\}z", "\xe2\x80\x94x\xe2\x80\x94z", 3, 1},
  {BRE, "x.\\{1,2\\}z", "\xe2\x80\x94x\xf0\x9d\x80\x80\xc3\x84z", 3, 1},
  {BRE, "x.\\{1,2\\}z", "\xe2\x80\x94x~\xe2\x80\x94z", 3, 1},
  {BRE, "x.\\{1,2\\}z", "\xe2\x80\x94x\xfd\xbf\xbf\xbf\xbf\xbfz", 3, 1},
  {BRE, "x\\(.w\\|\xc3\x86\\)\\?z", "axz", 1, 1},
  {BRE, "x\\(.w\\|\xc3\x86\\)\\?z", "ax\xfd\xbf\xbf\xbf\xbf\xbfwz", 1, 1},
  {BRE, "x\\(.w\\|\xc3\x86\\)\\?z", "ax\xc3\x86z", 1, 1},
  {BRE, "x\\(.w\\|\xc3\x86\\)\\?z", "ax\xe2\x80\x96wz", 1, 1},
  {ERE, "foo", "b\xc3\xa4rfoob\xc3\xa4z", 4, 1},
  {ERE, "^x|xy*z$", "\xc3\xb6xyyz", 2, 1},
  {ERE, "^x\\\\y{6}z+", "x\\yyyyyyzz\xc3\xb6", 0, 1},
  {ERE, "^x\\\\y{2,36}z+", "x\\yzz\xc3\xb6", -1, 1},
  {ERE, "^x\\\\y{,3}z+", "x\\yyyzz\xc3\xb6", 0, 1},
  {ERE, "x[C]y", "axCy", 1, 1},
  {ERE, "x[ABC]y", "axCy", 1, 1},
  {ERE, "\\`x|z\\'", "x\xe2\x80\x94", 0, 1},
  {ERE, "(xy)z\\1a\\1", "\xe2\x80\x94xyzxyaxy\xc3\x84", 3, 1},
  {ERE, "xy?z", "\xc3\x84xz\xc3\xb6", 2, 1},
  {ERE, "x.y", "ax\xe2\x80\x94yz", 1, 1},
  {ERE, "x.*z", "\xc3\x84xz", 2, 1},
  {ERE, "x.*z", "\xc3\x84x\xe2\x80\x94z", 2, 1},
  {ERE, "x.*z", "\xc3\x84x\xe2\x80\x94y\xf1\x90\x80\x90z", 2, 1},
  {ERE, "x.*z", "\xc3\x84x\xe2\x80\x94\xc3\x94\xf1\x90\x80\x90z", 2, 1},
  {ERE, "x.?z", "axz", 1, 1},
  {ERE, "x.?z", "axyz", 1, 1},
  {ERE, "x.?z", "ax\xc3\x84z", 1, 1},
  {ERE, "x.?z", "ax\xe2\x80\x94z", 1, 1},
  {ERE, "x.?z", "ax\xf0\x9d\x80\x80z", 1, 1},
  {ERE, "x.?z", "ax\xf9\x81\x82\x83\x84z", 1, 1},
  {ERE, "x.?z", "ax\xfd\xbf\xbf\xbf\xbf\xbfz", 1, 1},
  {ERE, "x.?z", "axyyz", -1, 1},
  {ERE, "x.?z", "ax\xc3\x84\xc3\x96z", -1, 1},
  {ERE, "x.?z", "ax\xe2\x80\x94\xc3\xa4z", -1, 1},
  {ERE, "x.?z", "ax\xf0\x9d\x80\x80yz", -1, 1},
  {ERE, "x.?z", "ax\xf9\x81\x82\x83\x84\xf0\x9d\x80\x81z", -1, 1},
  {ERE, "x.?z", "ax\xfd\xbf\xbf\xbf\xbf\xbf\xc3\x96z", -1, 1},
  {ERE, "x.+z", "\xe2\x80\x94xz", -1, 1},
  {ERE, "x.+z", "\xe2\x80\x94xyz", 3, 1},
  {ERE, "x.+z", "\xe2\x80\x94x\xc3\x84y\xe2\x80\x94z", 3, 1},
  {ERE, "x.+z", "\xe2\x80\x94x\xe2\x80\x94z", 3, 1},
  {ERE, "x.+z", "\xe2\x80\x94x\xf0\x9d\x80\x80\xc3\x84z", 3, 1},
  {ERE, "x.+z", "\xe2\x80\x94x.~\xe2\x80\x94\xf9\x81\x82\x83\x84z", 3, 1},
  {ERE, "x.+z", "\xe2\x80\x94x\xfd\xbf\xbf\xbf\xbf\xbfz", 3, 1},
  {ERE, "x.{1,2}z", "\xe2\x80\x94xz", -1, 1},
  {ERE, "x.{1,2}z", "\xe2\x80\x94x\xc3\x96y\xc3\xa4z", -1, 1},
  {ERE, "x.{1,2}z", "\xe2\x80\x94xyz", 3, 1},
  {ERE, "x.{1,2}z", "\xe2\x80\x94x\xc3\x84\xe2\x80\x94z", 3, 1},
  {ERE, "x.{1,2}z", "\xe2\x80\x94x\xe2\x80\x94z", 3, 1},
  {ERE, "x.{1,2}z", "\xe2\x80\x94x\xf0\x9d\x80\x80\xc3\x84z", 3, 1},
  {ERE, "x.{1,2}z", "\xe2\x80\x94x~\xe2\x80\x94z", 3, 1},
  {ERE, "x.{1,2}z", "\xe2\x80\x94x\xfd\xbf\xbf\xbf\xbf\xbfz", 3, 1},
  {ERE, "x(.w|\xc3\x86)?z", "axz", 1, 1},
  {ERE, "x(.w|\xc3\x86)?z", "ax\xfd\xbf\xbf\xbf\xbf\xbfwz", 1, 1},
  {ERE, "x(.w|\xc3\x86)?z", "ax\xc3\x86z", 1, 1},
  {ERE, "x(.w|\xc3\x86)?z", "ax\xe2\x80\x96wz", 1, 1},
  /* Should not be optimized.  */
  {BRE, "x[\xc3\x84\xc3\xa4]y", "ax\xc3\xa4y", 1, 0},
  {BRE, "x[A-Z,]y", "axCy", 1, 0},
  {BRE, "x[^y]z", "ax\xe2\x80\x94z", 1, 0},
  {BRE, "x[[:alnum:]]z", "ax\xc3\x96z", 1, 0},
  {BRE, "x[[=A=]]z", "axAz", 1, 0},
  {BRE, "x[[=\xc3\x84=]]z", "ax\xc3\x84z", 1, 0},
  {BRE, "\\<g", "\xe2\x80\x94g", 3, 0},
  {BRE, "\\bg\\b", "\xe2\x80\x94g", 3, 0},
  {BRE, "\\Bg\\B", "\xc3\xa4g\xc3\xa4", 2, 0},
  {BRE, "a\\wz", "a\xc3\x84z", 0, 0},
  {BRE, "x\\Wz", "\xc3\x96x\xe2\x80\x94z", 2, 0},
  {ERE, "x[\xc3\x84\xc3\xa4]y", "ax\xc3\xa4y", 1, 0},
  {ERE, "x[A-Z,]y", "axCy", 1, 0},
  {ERE, "x[^y]z", "ax\xe2\x80\x94z", 1, 0},
  {ERE, "x[[:alnum:]]z", "ax\xc3\x96z", 1, 0},
  {ERE, "x[[=A=]]z", "axAz", 1, 0},
  {ERE, "x[[=\xc3\x84=]]z", "ax\xc3\x84z", 1, 0},
  {ERE, "\\<g", "\xe2\x80\x94g", 3, 0},
  {ERE, "\\bg\\b", "\xe2\x80\x94g", 3, 0},
  {ERE, "\\Bg\\B", "\xc3\xa4g\xc3\xa4", 2, 0},
  {ERE, "a\\wz", "a\xc3\x84z", 0, 0},
  {ERE, "x\\Wz", "\xc3\x96x\xe2\x80\x94z", 2, 0},
};

int
main (void)
{
  struct re_pattern_buffer regbuf;
  const char *err;
  size_t i;
  int ret = 0;

  mtrace ();

  setlocale (LC_ALL, "de_DE.UTF-8");
  for (i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
    {
      int res, optimized;

      re_set_syntax (tests[i].syntax);
      memset (&regbuf, '\0', sizeof (regbuf));
      err = re_compile_pattern (tests[i].pattern, strlen (tests[i].pattern),
                                &regbuf);
      if (err != NULL)
	{
	  printf ("re_compile_pattern failed: %s\n", err);
	  ret = 1;
	  continue;
	}

      /* Check if re_search will be done as multi-byte or single-byte.  */
      optimized = ((re_dfa_t *) regbuf.buffer)->mb_cur_max == 1;
      if (optimized != tests[i].optimize)
        {
          printf ("pattern %zd %soptimized while it should%s be\n",
		  i, optimized ? "" : "not ", tests[i].optimize ? "" : " not");
	  ret = 1;
        }

      int str_len = strlen (tests[i].string);
      res = re_search (&regbuf, tests[i].string, str_len, 0, str_len, NULL);
      if (res != tests[i].res)
	{
	  printf ("re_search %zd failed: %d\n", i, res);
	  ret = 1;
	  regfree (&regbuf);
	  continue;
	}

      res = re_search (&regbuf, tests[i].string, str_len, str_len, -str_len,
		       NULL);
      if (res != tests[i].res)
	{
	  printf ("backward re_search %zd failed: %d\n", i, res);
	  ret = 1;
	  regfree (&regbuf);
	  continue;
	}
      regfree (&regbuf);

      re_set_syntax (tests[i].syntax | RE_ICASE);
      memset (&regbuf, '\0', sizeof (regbuf));
      err = re_compile_pattern (tests[i].pattern, strlen (tests[i].pattern),
                                &regbuf);
      if (err != NULL)
	{
	  printf ("re_compile_pattern failed: %s\n", err);
	  ret = 1;
	  continue;
	}

      /* Check if re_search will be done as multi-byte or single-byte.  */
      optimized = ((re_dfa_t *) regbuf.buffer)->mb_cur_max == 1;
      if (optimized)
        {
          printf ("pattern %zd optimized while it should not be when case insensitive\n",
		  i);
	  ret = 1;
        }

      res = re_search (&regbuf, tests[i].string, str_len, 0, str_len, NULL);
      if (res != tests[i].res)
	{
	  printf ("ICASE re_search %zd failed: %d\n", i, res);
	  ret = 1;
	  regfree (&regbuf);
	  continue;
	}

      res = re_search (&regbuf, tests[i].string, str_len, str_len, -str_len,
		       NULL);
      if (res != tests[i].res)
	{
	  printf ("ICASE backward re_search %zd failed: %d\n", i, res);
	  ret = 1;
	  regfree (&regbuf);
	  continue;
	}
      regfree (&regbuf);
    }

  return ret;
}