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glibc/posix/bug-regex19.c
Carlos O'Donell 466f2be6c0 Add generic C.UTF-8 locale (Bug 17318) 
We add a new C.UTF-8 locale. This locale is not builtin to glibc, but
is provided as a distinct locale. The locale provides full support for
UTF-8 and this includes full code point sorting via STRCMP-based
collation (strcmp or wcscmp).

The collation uses a new keyword 'codepoint_collation' which drops all
collation rules and generates an empty zero rules collation to enable
STRCMP usage in collation. This ensures that we get full code point
sorting for C.UTF-8 with a minimal 1406 bytes of overhead (LC_COLLATE
structure information and ASCII collating tables).

The new locale is added to SUPPORTED. Minimal test data for specific
code points (minus those not supported by collate-test) is provided in
C.UTF-8.in, and this verifies code point sorting is working reasonably
across the range. The locale was tested manually with the full set of
code points without failure.

The locale is harmonized with locales already shipping in various
downstream distributions. A new tst-iconv9 test is added which verifies
the C.UTF-8 locale is generally usable.

Testing for fnmatch, regexec, and recomp is provided by extending
bug-regex1, bugregex19, bug-regex4, bug-regex6, transbug, tst-fnmatch,
tst-regcomp-truncated, and tst-regex to use C.UTF-8.

Tested on x86_64 or i686 without regression.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
2021-09-06 11:30:28 -04:00

434 lines
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/* Regular expression tests.
Copyright (C) 2003-2021 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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