139 lines
5.6 KiB
C
139 lines
5.6 KiB
C
/* Regular expression tests.
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Copyright (C) 2002-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sys/types.h>
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#include <mcheck.h>
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#include <regex.h>
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#include <stdio.h>
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#include <stdlib.h>
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/* Tests supposed to match. */
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struct
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{
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const char *pattern;
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const char *string;
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int flags, nmatch;
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regmatch_t rm[5];
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} tests[] = {
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/* Test for newline handling in regex. */
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{ "[^~]*~", "\nx~y", 0, 2, { { 0, 3 }, { -1, -1 } } },
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/* Other tests. */
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{ "a(.*)b", "a b", REG_EXTENDED, 2, { { 0, 3 }, { 1, 2 } } },
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{ ".*|\\([KIO]\\)\\([^|]*\\).*|?[KIO]", "10~.~|P|K0|I10|O16|?KSb", 0, 3,
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{ { 0, 21 }, { 15, 16 }, { 16, 18 } } },
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{ ".*|\\([KIO]\\)\\([^|]*\\).*|?\\1", "10~.~|P|K0|I10|O16|?KSb", 0, 3,
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{ { 0, 21 }, { 8, 9 }, { 9, 10 } } },
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{ "^\\(a*\\)\\1\\{9\\}\\(a\\{0,9\\}\\)\\([0-9]*;.*[^a]\\2\\([0-9]\\)\\)",
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"a1;;0a1aa2aaa3aaaa4aaaaa5aaaaaa6aaaaaaa7aaaaaaaa8aaaaaaaaa9aa2aa1a0", 0,
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5, { { 0, 67 }, { 0, 0 }, { 0, 1 }, { 1, 67 }, { 66, 67 } } },
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/* Test for BRE expression anchoring. POSIX says just that this may match;
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in glibc regex it always matched, so avoid changing it. */
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{ "\\(^\\|foo\\)bar", "bar", 0, 2, { { 0, 3 }, { -1, -1 } } },
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{ "\\(foo\\|^\\)bar", "bar", 0, 2, { { 0, 3 }, { -1, -1 } } },
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/* In ERE this must be treated as an anchor. */
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{ "(^|foo)bar", "bar", REG_EXTENDED, 2, { { 0, 3 }, { -1, -1 } } },
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{ "(foo|^)bar", "bar", REG_EXTENDED, 2, { { 0, 3 }, { -1, -1 } } },
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/* Here ^ cannot be treated as an anchor according to POSIX. */
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{ "(^|foo)bar", "(^|foo)bar", 0, 2, { { 0, 10 }, { -1, -1 } } },
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{ "(foo|^)bar", "(foo|^)bar", 0, 2, { { 0, 10 }, { -1, -1 } } },
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/* More tests on backreferences. */
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{ "()\\1", "x", REG_EXTENDED, 2, { { 0, 0 }, { 0, 0 } } },
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{ "()x\\1", "x", REG_EXTENDED, 2, { { 0, 1 }, { 0, 0 } } },
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{ "()\\1*\\1*", "", REG_EXTENDED, 2, { { 0, 0 }, { 0, 0 } } },
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{ "([0-9]).*\\1(a*)", "7;7a6", REG_EXTENDED, 3, { { 0, 4 }, { 0, 1 }, { 3, 4 } } },
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{ "([0-9]).*\\1(a*)", "7;7a", REG_EXTENDED, 3, { { 0, 4 }, { 0, 1 }, { 3, 4 } } },
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{ "(b)()c\\1", "bcb", REG_EXTENDED, 3, { { 0, 3 }, { 0, 1 }, { 1, 1 } } },
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{ "()(b)c\\2", "bcb", REG_EXTENDED, 3, { { 0, 3 }, { 0, 0 }, { 0, 1 } } },
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{ "a(b)()c\\1", "abcb", REG_EXTENDED, 3, { { 0, 4 }, { 1, 2 }, { 2, 2 } } },
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{ "a()(b)c\\2", "abcb", REG_EXTENDED, 3, { { 0, 4 }, { 1, 1 }, { 1, 2 } } },
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{ "()(b)\\1c\\2", "bcb", REG_EXTENDED, 3, { { 0, 3 }, { 0, 0 }, { 0, 1 } } },
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{ "(b())\\2\\1", "bbbb", REG_EXTENDED, 3, { { 0, 2 }, { 0, 1 }, { 1, 1 } } },
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{ "a()(b)\\1c\\2", "abcb", REG_EXTENDED, 3, { { 0, 4 }, { 1, 1 }, { 1, 2 } } },
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{ "a()d(b)\\1c\\2", "adbcb", REG_EXTENDED, 3, { { 0, 5 }, { 1, 1 }, { 2, 3 } } },
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{ "a(b())\\2\\1", "abbbb", REG_EXTENDED, 3, { { 0, 3 }, { 1, 2 }, { 2, 2 } } },
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{ "(bb())\\2\\1", "bbbb", REG_EXTENDED, 3, { { 0, 4 }, { 0, 2 }, { 2, 2 } } },
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{ "^([^,]*),\\1,\\1$", "a,a,a", REG_EXTENDED, 2, { { 0, 5 }, { 0, 1 } } },
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{ "^([^,]*),\\1,\\1$", "ab,ab,ab", REG_EXTENDED, 2, { { 0, 8 }, { 0, 2 } } },
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{ "^([^,]*),\\1,\\1,\\1$", "abc,abc,abc,abc", REG_EXTENDED, 2,
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{ { 0, 15 }, { 0, 3 } } },
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{ "^(.?)(.?)(.?)(.?)(.?).?\\5\\4\\3\\2\\1$",
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"level", REG_NOSUB | REG_EXTENDED, 0, { { -1, -1 } } },
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{ "^(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.).?\\9\\8\\7\\6\\5\\4\\3\\2\\1$|^.?$",
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"level", REG_NOSUB | REG_EXTENDED, 0, { { -1, -1 } } },
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{ "^(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.).?\\9\\8\\7\\6\\5\\4\\3\\2\\1$|^.?$",
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"abcdedcba", REG_EXTENDED, 1, { { 0, 9 } } },
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#if 0
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/* XXX Not used since they fail so far. */
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{ "^(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.).?\\9\\8\\7\\6\\5\\4\\3\\2\\1$|^.?$",
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"ababababa", REG_EXTENDED, 1, { { 0, 9 } } },
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{ "^(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?).?\\9\\8\\7\\6\\5\\4\\3\\2\\1$",
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"level", REG_NOSUB | REG_EXTENDED, 0, { { -1, -1 } } },
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{ "^(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?).?\\9\\8\\7\\6\\5\\4\\3\\2\\1$",
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"ababababa", REG_EXTENDED, 1, { { 0, 9 } } },
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#endif
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};
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int
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main (void)
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{
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regex_t re;
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regmatch_t rm[5];
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size_t i;
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int n, ret = 0;
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mtrace ();
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for (i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
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{
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n = regcomp (&re, tests[i].pattern, tests[i].flags);
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if (n != 0)
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{
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char buf[500];
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regerror (n, &re, buf, sizeof (buf));
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printf ("%s: regcomp %zd failed: %s\n", tests[i].pattern, i, buf);
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ret = 1;
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continue;
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}
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if (regexec (&re, tests[i].string, tests[i].nmatch, rm, 0))
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{
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printf ("%s: regexec %zd failed\n", tests[i].pattern, i);
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ret = 1;
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regfree (&re);
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continue;
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}
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for (n = 0; n < tests[i].nmatch; ++n)
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if (rm[n].rm_so != tests[i].rm[n].rm_so
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|| rm[n].rm_eo != tests[i].rm[n].rm_eo)
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{
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if (tests[i].rm[n].rm_so == -1 && tests[i].rm[n].rm_eo == -1)
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break;
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printf ("%s: regexec %zd match failure rm[%d] %d..%d\n",
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tests[i].pattern, i, n, rm[n].rm_so, rm[n].rm_eo);
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ret = 1;
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break;
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}
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regfree (&re);
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}
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return ret;
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}
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