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glibc/posix/bug-regex19.c

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/* Regular expression tests.
Copyright (C) 2003-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<https://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>
#include <libc-diag.h>
#include <support/support.h>
#define BRE RE_SYNTAX_POSIX_BASIC
#define ERE RE_SYNTAX_POSIX_EXTENDED
static struct test_s
{
int syntax;
const char *pattern;
const char *string;
int start, res;
} tests[] = {
{BRE, "\\<A", "CBAA", 0, -1},
{BRE, "\\<A", "CBAA", 2, -1},
{BRE, "A\\>", "CAAB", 1, -1},
{BRE, "\\bA", "CBAA", 0, -1},
{BRE, "\\bA", "CBAA", 2, -1},
{BRE, "A\\b", "CAAB", 1, -1},
{BRE, "\\<A", "AA", 0, 0},
{BRE, "\\<A", "C-AA", 2, 2},
{BRE, "A\\>", "CAA-", 1, 2},
{BRE, "A\\>", "CAA", 1, 2},
{BRE, "\\bA", "AA", 0, 0},
{BRE, "\\bA", "C-AA", 2, 2},
{BRE, "A\\b", "CAA-", 1, 2},
{BRE, "A\\b", "CAA", 1, 2},
{BRE, "\\<[A]", "CBAA", 0, -1},
{BRE, "\\<[A]", "CBAA", 2, -1},
{BRE, "[A]\\>", "CAAB", 1, -1},
{BRE, "\\b[A]", "CBAA", 0, -1},
{BRE, "\\b[A]", "CBAA", 2, -1},
{BRE, "[A]\\b", "CAAB", 1, -1},
{BRE, "\\<[A]", "AA", 0, 0},
{BRE, "\\<[A]", "C-AA", 2, 2},
{BRE, "[A]\\>", "CAA-", 1, 2},
{BRE, "[A]\\>", "CAA", 1, 2},
{BRE, "\\b[A]", "AA", 0, 0},
{BRE, "\\b[A]", "C-AA", 2, 2},
{BRE, "[A]\\b", "CAA-", 1, 2},
{BRE, "[A]\\b", "CAA", 1, 2},
{ERE, "\\b(A|!|.B)", "A=AC", 0, 0},
{ERE, "\\b(A|!|.B)", "=AC", 0, 1},
{ERE, "\\b(A|!|.B)", "!AC", 0, 1},
{ERE, "\\b(A|!|.B)", "=AB", 0, 1},
{ERE, "\\b(A|!|.B)", "DA!C", 0, 2},
{ERE, "\\b(A|!|.B)", "=CB", 0, 1},
{ERE, "\\b(A|!|.B)", "!CB", 0, 1},
{ERE, "\\b(A|!|.B)", "D,B", 0, 1},
{ERE, "\\b(A|!|.B)", "!.C", 0, -1},
{ERE, "\\b(A|!|.B)", "BCB", 0, -1},
{ERE, "(A|\\b)(A|B|C)", "DAAD", 0, 1},
{ERE, "(A|\\b)(A|B|C)", "DABD", 0, 1},
{ERE, "(A|\\b)(A|B|C)", "AD", 0, 0},
{ERE, "(A|\\b)(A|B|C)", "C!", 0, 0},
{ERE, "(A|\\b)(A|B|C)", "D,B", 0, 2},
{ERE, "(A|\\b)(A|B|C)", "DA?A", 0, 3},
{ERE, "(A|\\b)(A|B|C)", "BBC", 0, 0},
{ERE, "(A|\\b)(A|B|C)", "DA", 0, -1},
{ERE, "(!|\\b)(!|=|~)", "A!=\\", 0, 1},
{ERE, "(!|\\b)(!|=|~)", "/!=A", 0, 1},
{ERE, "(!|\\b)(!|=|~)", "A=A", 0, 1},
{ERE, "(!|\\b)(!|=|~)", "==!=", 0, 2},
{ERE, "(!|\\b)(!|=|~)", "==C~", 0, 3},
{ERE, "(!|\\b)(!|=|~)", "=~=", 0, -1},
{ERE, "(!|\\b)(!|=|~)", "~!", 0, -1},
{ERE, "(!|\\b)(!|=|~)", "~=~", 0, -1},
{ERE, "(\\b|A.)[ABC]", "AC", 0, 0},
{ERE, "(\\b|A.)[ABC]", "=A", 0, 1},
{ERE, "(\\b|A.)[ABC]", "DACC", 0, 1},
{ERE, "(\\b|A.)[A~C]", "AC", 0, 0},
{ERE, "(\\b|A.)[A~C]", "=A", 0, 1},
{ERE, "(\\b|A.)[A~C]", "DACC", 0, 1},
{ERE, "(\\b|A.)[A~C]", "B!A=", 0, 2},
{ERE, "(\\b|A.)[A~C]", "B~C", 0, 1},
{ERE, ".\\b.", "AA~", 0, 1},
{ERE, ".\\b.", "=A=", 0, 0},
{ERE, ".\\b.", "==", 0, -1},
{ERE, ".\\b.", "ABA", 0, -1},
{ERE, "[^k]\\b[^k]", "AA~", 0, 1},
{ERE, "[^k]\\b[^k]", "=A=", 0, 0},
{ERE, "[^k]\\b[^k]", "Ak~kA~", 0, 4},
{ERE, "[^k]\\b[^k]", "==", 0, -1},
{ERE, "[^k]\\b[^k]", "ABA", 0, -1},
{ERE, "[^k]\\b[^k]", "Ak~", 0, -1},
{ERE, "[^k]\\b[^k]", "k=k", 0, -1},
{ERE, "[^C]\\b[^C]", "AA~", 0, 1},
{ERE, "[^C]\\b[^C]", "=A=", 0, 0},
{ERE, "[^C]\\b[^C]", "AC~CA~", 0, 4},
{ERE, "[^C]\\b[^C]", "==", 0, -1},
{ERE, "[^C]\\b[^C]", "ABA", 0, -1},
{ERE, "[^C]\\b[^C]", "AC~", 0, -1},
{ERE, "[^C]\\b[^C]", "C=C", 0, -1},
{ERE, "\\<(A|!|.B)", "A=AC", 0, 0},
{ERE, "\\<(A|!|.B)", "=AC", 0, 1},
{ERE, "\\<(A|!|.B)", "!AC", 0, 1},
{ERE, "\\<(A|!|.B)", "=AB", 0, 1},
{ERE, "\\<(A|!|.B)", "=CB", 0, 1},
{ERE, "\\<(A|!|.B)", "!CB", 0, 1},
{ERE, "\\<(A|!|.B)", "DA!C", 0, -1},
{ERE, "\\<(A|!|.B)", "D,B", 0, -1},
{ERE, "\\<(A|!|.B)", "!.C", 0, -1},
{ERE, "\\<(A|!|.B)", "BCB", 0, -1},
{ERE, "(A|\\<)(A|B|C)", "DAAD", 0, 1},
{ERE, "(A|\\<)(A|B|C)", "DABD", 0, 1},
{ERE, "(A|\\<)(A|B|C)", "AD", 0, 0},
{ERE, "(A|\\<)(A|B|C)", "C!", 0, 0},
{ERE, "(A|\\<)(A|B|C)", "D,B", 0, 2},
{ERE, "(A|\\<)(A|B|C)", "DA?A", 0, 3},
{ERE, "(A|\\<)(A|B|C)", "BBC", 0, 0},
{ERE, "(A|\\<)(A|B|C)", "DA", 0, -1},
{ERE, "(!|\\<)(!|=|~)", "A!=\\", 0, 1},
{ERE, "(!|\\<)(!|=|~)", "/!=A", 0, 1},
{ERE, "(!|\\<)(!|=|~)", "==!=", 0, 2},
{ERE, "(!|\\<)(!|=|~)", "==C~", 0, -1},
{ERE, "(!|\\<)(!|=|~)", "A=A", 0, -1},
{ERE, "(!|\\<)(!|=|~)", "=~=", 0, -1},
{ERE, "(!|\\<)(!|=|~)", "~!", 0, -1},
{ERE, "(!|\\<)(!|=|~)", "~=~", 0, -1},
{ERE, "(\\<|A.)[ABC]", "AC", 0, 0},
{ERE, "(\\<|A.)[ABC]", "=A", 0, 1},
{ERE, "(\\<|A.)[ABC]", "DACC", 0, 1},
{ERE, "(\\<|A.)[A~C]", "AC", 0, 0},
{ERE, "(\\<|A.)[A~C]", "=A", 0, 1},
{ERE, "(\\<|A.)[A~C]", "DACC", 0, 1},
{ERE, "(\\<|A.)[A~C]", "B!A=", 0, 2},
{ERE, "(\\<|A.)[A~C]", "B~C", 0, 2},
{ERE, ".\\<.", "=A=", 0, 0},
{ERE, ".\\<.", "AA~", 0, -1},
{ERE, ".\\<.", "==", 0, -1},
{ERE, ".\\<.", "ABA", 0, -1},
{ERE, "[^k]\\<[^k]", "=k=A=", 0, 2},
{ERE, "[^k]\\<[^k]", "kk~", 0, -1},
{ERE, "[^k]\\<[^k]", "==", 0, -1},
{ERE, "[^k]\\<[^k]", "ABA", 0, -1},
{ERE, "[^k]\\<[^k]", "=k=", 0, -1},
{ERE, "[^C]\\<[^C]", "=C=A=", 0, 2},
{ERE, "[^C]\\<[^C]", "CC~", 0, -1},
{ERE, "[^C]\\<[^C]", "==", 0, -1},
{ERE, "[^C]\\<[^C]", "ABA", 0, -1},
{ERE, "[^C]\\<[^C]", "=C=", 0, -1},
{ERE, ".\\B.", "ABA", 0, 0},
{ERE, ".\\B.", "=BDC", 0, 1},
{ERE, "[^k]\\B[^k]", "kkkABA", 0, 3},
{ERE, "[^k]\\B[^k]", "kBk", 0, -1},
{ERE, "[^C]\\B[^C]", "CCCABA", 0, 3},
{ERE, "[^C]\\B[^C]", "CBC", 0, -1},
{ERE, ".(\\b|\\B).", "=~AB", 0, 0},
{ERE, ".(\\b|\\B).", "A=C", 0, 0},
{ERE, ".(\\b|\\B).", "ABC", 0, 0},
{ERE, ".(\\b|\\B).", "=~\\!", 0, 0},
{ERE, "[^k](\\b|\\B)[^k]", "=~AB", 0, 0},
{ERE, "[^k](\\b|\\B)[^k]", "A=C", 0, 0},
{ERE, "[^k](\\b|\\B)[^k]", "ABC", 0, 0},
{ERE, "[^k](\\b|\\B)[^k]", "=~kBD", 0, 0},
{ERE, "[^k](\\b|\\B)[^k]", "=~\\!", 0, 0},
{ERE, "[^k](\\b|\\B)[^k]", "=~kB", 0, 0},
{ERE, "[^C](\\b|\\B)[^C]", "=~AB", 0, 0},
{ERE, "[^C](\\b|\\B)[^C]", "A=C", 0, 0},
{ERE, "[^C](\\b|\\B)[^C]", "ABC", 0, 0},
{ERE, "[^C](\\b|\\B)[^C]", "=~CBD", 0, 0},
{ERE, "[^C](\\b|\\B)[^C]", "=~\\!", 0, 0},
{ERE, "[^C](\\b|\\B)[^C]", "=~CB", 0, 0},
{ERE, "\\b([A]|[!]|.B)", "A=AC", 0, 0},
{ERE, "\\b([A]|[!]|.B)", "=AC", 0, 1},
{ERE, "\\b([A]|[!]|.B)", "!AC", 0, 1},
{ERE, "\\b([A]|[!]|.B)", "=AB", 0, 1},
{ERE, "\\b([A]|[!]|.B)", "DA!C", 0, 2},
{ERE, "\\b([A]|[!]|.B)", "=CB", 0, 1},
{ERE, "\\b([A]|[!]|.B)", "!CB", 0, 1},
{ERE, "\\b([A]|[!]|.B)", "D,B", 0, 1},
{ERE, "\\b([A]|[!]|.B)", "!.C", 0, -1},
{ERE, "\\b([A]|[!]|.B)", "BCB", 0, -1},
{ERE, "([A]|\\b)([A]|[B]|[C])", "DAAD", 0, 1},
{ERE, "([A]|\\b)([A]|[B]|[C])", "DABD", 0, 1},
{ERE, "([A]|\\b)([A]|[B]|[C])", "AD", 0, 0},
{ERE, "([A]|\\b)([A]|[B]|[C])", "C!", 0, 0},
{ERE, "([A]|\\b)([A]|[B]|[C])", "D,B", 0, 2},
{ERE, "([A]|\\b)([A]|[B]|[C])", "DA?A", 0, 3},
{ERE, "([A]|\\b)([A]|[B]|[C])", "BBC", 0, 0},
{ERE, "([A]|\\b)([A]|[B]|[C])", "DA", 0, -1},
{ERE, "([!]|\\b)([!]|[=]|[~])", "A!=\\", 0, 1},
{ERE, "([!]|\\b)([!]|[=]|[~])", "/!=A", 0, 1},
{ERE, "([!]|\\b)([!]|[=]|[~])", "A=A", 0, 1},
{ERE, "([!]|\\b)([!]|[=]|[~])", "==!=", 0, 2},
{ERE, "([!]|\\b)([!]|[=]|[~])", "==C~", 0, 3},
{ERE, "([!]|\\b)([!]|[=]|[~])", "=~=", 0, -1},
{ERE, "([!]|\\b)([!]|[=]|[~])", "~!", 0, -1},
{ERE, "([!]|\\b)([!]|[=]|[~])", "~=~", 0, -1},
{ERE, "\\<([A]|[!]|.B)", "A=AC", 0, 0},
{ERE, "\\<([A]|[!]|.B)", "=AC", 0, 1},
{ERE, "\\<([A]|[!]|.B)", "!AC", 0, 1},
{ERE, "\\<([A]|[!]|.B)", "=AB", 0, 1},
{ERE, "\\<([A]|[!]|.B)", "=CB", 0, 1},
{ERE, "\\<([A]|[!]|.B)", "!CB", 0, 1},
{ERE, "\\<([A]|[!]|.B)", "DA!C", 0, -1},
{ERE, "\\<([A]|[!]|.B)", "D,B", 0, -1},
{ERE, "\\<([A]|[!]|.B)", "!.C", 0, -1},
{ERE, "\\<([A]|[!]|.B)", "BCB", 0, -1},
{ERE, "([A]|\\<)([A]|[B]|[C])", "DAAD", 0, 1},
{ERE, "([A]|\\<)([A]|[B]|[C])", "DABD", 0, 1},
{ERE, "([A]|\\<)([A]|[B]|[C])", "AD", 0, 0},
{ERE, "([A]|\\<)([A]|[B]|[C])", "C!", 0, 0},
{ERE, "([A]|\\<)([A]|[B]|[C])", "D,B", 0, 2},
{ERE, "([A]|\\<)([A]|[B]|[C])", "DA?A", 0, 3},
{ERE, "([A]|\\<)([A]|[B]|[C])", "BBC", 0, 0},
{ERE, "([A]|\\<)([A]|[B]|[C])", "DA", 0, -1},
{ERE, "([!]|\\<)([!=]|[~])", "A!=\\", 0, 1},
{ERE, "([!]|\\<)([!=]|[~])", "/!=A", 0, 1},
{ERE, "([!]|\\<)([!=]|[~])", "==!=", 0, 2},
{ERE, "([!]|\\<)([!=]|[~])", "==C~", 0, -1},
{ERE, "([!]|\\<)([!=]|[~])", "A=A", 0, -1},
{ERE, "([!]|\\<)([!=]|[~])", "=~=", 0, -1},
{ERE, "([!]|\\<)([!=]|[~])", "~!", 0, -1},
{ERE, "([!]|\\<)([!=]|[~])", "~=~", 0, -1},
{ERE, "(\\<|[A].)[ABC]", "AC", 0, 0},
{ERE, "(\\<|[A].)[ABC]", "=A", 0, 1},
{ERE, "(\\<|[A].)[ABC]", "DACC", 0, 1},
{ERE, "(\\<|[A].)[A~C]", "AC", 0, 0},
{ERE, "(\\<|[A].)[A~C]", "=A", 0, 1},
{ERE, "(\\<|[A].)[A~C]", "DACC", 0, 1},
{ERE, "(\\<|[A].)[A~C]", "B!A=", 0, 2},
{ERE, "(\\<|[A].)[A~C]", "B~C", 0, 2},
{ERE, "^[^A]*\\bB", "==B", 0, 0},
{ERE, "^[^A]*\\bB", "CBD!=B", 0, 0},
{ERE, "[^A]*\\bB", "==B", 2, 2}
};
int
do_one_test (const struct test_s *test, const char *fail)
{
int res;
const char *err;
struct re_pattern_buffer regbuf;
re_set_syntax (test->syntax);
memset (&regbuf, '\0', sizeof (regbuf));
err = re_compile_pattern (test->pattern, strlen (test->pattern),
&regbuf);
if (err != NULL)
{
printf ("%sre_compile_pattern \"%s\" failed: %s\n", fail, test->pattern,
err);
return 1;
}
#if __GNUC_PREREQ (10, 0) && !__GNUC_PREREQ (11, 0)
DIAG_PUSH_NEEDS_COMMENT;
/* Avoid GCC 10 false positive warning: specified size exceeds maximum
object size. */
DIAG_IGNORE_NEEDS_COMMENT (10, "-Wstringop-overflow");
#endif
res = re_search (&regbuf, test->string, strlen (test->string),
test->start, strlen (test->string) - test->start, NULL);
#if __GNUC_PREREQ (10, 0) && !__GNUC_PREREQ (11, 0)
DIAG_POP_NEEDS_COMMENT;
#endif
if (res != test->res)
{
printf ("%sre_search \"%s\" \"%s\" failed: %d (expected %d)\n",
fail, test->pattern, test->string, res, test->res);
regfree (&regbuf);
return 1;
}
if (test->res > 0 && test->start == 0)
{
#if __GNUC_PREREQ (10, 0) && !__GNUC_PREREQ (11, 0)
DIAG_PUSH_NEEDS_COMMENT;
/* Avoid GCC 10 false positive warning: specified size exceeds maximum
object size. */
DIAG_IGNORE_NEEDS_COMMENT (10, "-Wstringop-overflow");
#endif
res = re_search (&regbuf, test->string, strlen (test->string),
test->res, strlen (test->string) - test->res, NULL);
#if __GNUC_PREREQ (10, 0) && !__GNUC_PREREQ (11, 0)
DIAG_POP_NEEDS_COMMENT;
#endif
if (res != test->res)
{
printf ("%sre_search from expected \"%s\" \"%s\" failed: %d (expected %d)\n",
fail, test->pattern, test->string, res, test->res);
regfree (&regbuf);
return 1;
}
}
regfree (&regbuf);
return 0;
}
static char *
replace (char *p, char c)
{
switch (c)
{
/* A -> A" */
case 'A': *p++ = '\xc3'; *p++ = '\x84'; break;
/* B -> O" */
case 'B': *p++ = '\xc3'; *p++ = '\x96'; break;
/* C -> U" */
case 'C': *p++ = '\xc3'; *p++ = '\x9c'; break;
/* D -> a" */
case 'D': *p++ = '\xc3'; *p++ = '\xa4'; break;
/* ! -> MULTIPLICATION SIGN */
case '!': *p++ = '\xc3'; *p++ = '\x97'; break;
/* = -> EM DASH */
case '=': *p++ = '\xe2'; *p++ = '\x80'; *p++ = '\x94'; break;
/* ~ -> MUSICAL SYMBOL HALF NOTE */
case '~': *p++ = '\xf0'; *p++ = '\x9d'; *p++ = '\x85'; *p++ = '\x9e';
break;
}
return p;
}
int
do_mb_tests (const struct test_s *test)
{
int i, j;
struct test_s t;
const char *const chars = "ABCD!=~";
char repl[8], *p;
char pattern[strlen (test->pattern) * 4 + 1];
char string[strlen (test->string) * 4 + 1];
char fail[8 + sizeof ("UTF-8 ")];
t = *test;
t.pattern = pattern;
t.string = string;
strcpy (fail, "UTF-8 ");
for (i = 1; i < 128; ++i)
{
p = repl;
for (j = 0; j < 7; ++j)
if (i & (1 << j))
{
if (!strchr (test->pattern, chars[j])
&& !strchr (test->string, chars[j]))
break;
*p++ = chars[j];
}
if (j < 7)
continue;
*p = '\0';
for (j = 0, p = pattern; test->pattern[j]; ++j)
if (strchr (repl, test->pattern[j]))
p = replace (p, test->pattern[j]);
else if (test->pattern[j] == '\\' && test->pattern[j + 1])
{
*p++ = test->pattern[j++];
*p++ = test->pattern[j];
}
else
*p++ = test->pattern[j];
*p = '\0';
t.start = test->start;
t.res = test->res;
for (j = 0, p = string; test->string[j]; ++j)
if (strchr (repl, test->string[j]))
{
char *d = replace (p, test->string[j]);
if (test->start > j)
t.start += d - p - 1;
if (test->res > j)
t.res += d - p - 1;
p = d;
}
else
*p++ = test->string[j];
*p = '\0';
p = stpcpy (fail + strlen ("UTF-8 "), repl);
*p++ = ' ';
*p = '\0';
if (do_one_test (&t, fail))
return 1;
}
return 0;
}
static int
do_test (void)
{
size_t i;
int ret = 0;
mtrace ();
for (i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
{
xsetlocale (LC_ALL, "de_DE.ISO-8859-1");
ret |= do_one_test (&tests[i], "");
xsetlocale (LC_ALL, "de_DE.UTF-8");
ret |= do_one_test (&tests[i], "UTF-8 ");
ret |= do_mb_tests (&tests[i]);
xsetlocale (LC_ALL, "C.UTF-8");
ret |= do_one_test (&tests[i], "UTF-8 ");
ret |= do_mb_tests (&tests[i]);
}
return ret;
}
#include <support/test-driver.c>
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