glibc/posix/bug-regex20.c

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/* Test for UTF-8 regular expression optimizations.
Copyright (C) 2003-2020 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
Prefer https to http for gnu.org and fsf.org URLs Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 13:40:42 +08:00
<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>
#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;
}