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glibc/posix/tst-rxspencer.c
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/* Regular expression tests. | |
Copyright (C) 2003-2016 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> | |
#include <getopt.h> | |
static void | |
replace_special_chars (char *str) | |
{ | |
for (; (str = strpbrk (str, "NTSZ")) != NULL; ++str) | |
switch (*str) | |
{ | |
case 'N': *str = '\n'; break; | |
case 'T': *str = '\t'; break; | |
case 'S': *str = ' '; break; | |
case 'Z': *str = '\0'; break; | |
} | |
} | |
static void | |
glibc_re_syntax (char *str) | |
{ | |
char *p, *end = strchr (str, '\0') + 1; | |
/* Replace [[:<:]] with \< and [[:>:]] with \>. */ | |
for (p = str; (p = strstr (p, "[[:")) != NULL; ) | |
if ((p[3] == '<' || p[3] == '>') && strncmp (p + 4, ":]]", 3) == 0) | |
{ | |
p[0] = '\\'; | |
p[1] = p[3]; | |
memmove (p + 2, p + 7, end - p - 7); | |
end -= 5; | |
p += 2; | |
} | |
else | |
p += 3; | |
} | |
static char * | |
mb_replace (char *dst, const char c) | |
{ | |
switch (c) | |
{ | |
/* Replace a with \'a and A with \'A. */ | |
case 'a': | |
*dst++ = '\xc3'; | |
*dst++ = '\xa1'; | |
break; | |
case 'A': | |
*dst++ = '\xc3'; | |
*dst++ = '\x81'; | |
break; | |
/* Replace b with \v{c} and B with \v{C}. */ | |
case 'b': | |
*dst++ = '\xc4'; | |
*dst++ = '\x8d'; | |
break; | |
case 'B': | |
*dst++ = '\xc4'; | |
*dst++ = '\x8c'; | |
break; | |
/* Replace c with \v{d} and C with \v{D}. */ | |
case 'c': | |
*dst++ = '\xc4'; | |
*dst++ = '\x8f'; | |
break; | |
case 'C': | |
*dst++ = '\xc4'; | |
*dst++ = '\x8e'; | |
break; | |
/* Replace d with \'e and D with \'E. */ | |
case 'd': | |
*dst++ = '\xc3'; | |
*dst++ = '\xa9'; | |
break; | |
case 'D': | |
*dst++ = '\xc3'; | |
*dst++ = '\x89'; | |
break; | |
} | |
return dst; | |
} | |
static char * | |
mb_frob_string (const char *str, const char *letters) | |
{ | |
char *ret, *dst; | |
const char *src; | |
if (str == NULL) | |
return NULL; | |
ret = malloc (2 * strlen (str) + 1); | |
if (ret == NULL) | |
return NULL; | |
for (src = str, dst = ret; *src; ++src) | |
if (strchr (letters, *src)) | |
dst = mb_replace (dst, *src); | |
else | |
*dst++ = *src; | |
*dst = '\0'; | |
return ret; | |
} | |
/* Like mb_frob_string, but don't replace anything between | |
[: and :], [. and .] or [= and =] or characters escaped | |
with a backslash. */ | |
static char * | |
mb_frob_pattern (const char *str, const char *letters) | |
{ | |
char *ret, *dst; | |
const char *src; | |
int in_class = 0, escaped = 0; | |
if (str == NULL) | |
return NULL; | |
ret = malloc (2 * strlen (str) + 1); | |
if (ret == NULL) | |
return NULL; | |
for (src = str, dst = ret; *src; ++src) | |
if (*src == '\\') | |
{ | |
escaped ^= 1; | |
*dst++ = *src; | |
} | |
else if (escaped) | |
{ | |
escaped = 0; | |
*dst++ = *src; | |
continue; | |
} | |
else if (!in_class && strchr (letters, *src)) | |
dst = mb_replace (dst, *src); | |
else | |
{ | |
if (!in_class && *src == '[' && strchr (":.=", src[1])) | |
in_class = 1; | |
else if (in_class && *src == ']' && strchr (":.=", src[-1])) | |
in_class = 0; | |
*dst++ = *src; | |
} | |
*dst = '\0'; | |
return ret; | |
} | |
static int | |
check_match (regmatch_t *rm, int idx, const char *string, | |
const char *match, const char *fail) | |
{ | |
if (match[0] == '-' && match[1] == '\0') | |
{ | |
if (rm[idx].rm_so == -1 && rm[idx].rm_eo == -1) | |
return 0; | |
printf ("%s rm[%d] unexpectedly matched\n", fail, idx); | |
return 1; | |
} | |
if (rm[idx].rm_so == -1 || rm[idx].rm_eo == -1) | |
{ | |
printf ("%s rm[%d] unexpectedly did not match\n", fail, idx); | |
return 1; | |
} | |
if (match[0] == '@') | |
{ | |
if (rm[idx].rm_so != rm[idx].rm_eo) | |
{ | |
printf ("%s rm[%d] not empty\n", fail, idx); | |
return 1; | |
} | |
if (strncmp (string + rm[idx].rm_so, match + 1, strlen (match + 1) ?: 1)) | |
{ | |
printf ("%s rm[%d] not matching %s\n", fail, idx, match); | |
return 1; | |
} | |
return 0; | |
} | |
if (rm[idx].rm_eo - rm[idx].rm_so != strlen (match) | |
|| strncmp (string + rm[idx].rm_so, match, | |
rm[idx].rm_eo - rm[idx].rm_so)) | |
{ | |
printf ("%s rm[%d] not matching %s\n", fail, idx, match); | |
return 1; | |
} | |
return 0; | |
} | |
static int | |
test (const char *pattern, int cflags, const char *string, int eflags, | |
char *expect, char *matches, const char *fail) | |
{ | |
regex_t re; | |
regmatch_t rm[10]; | |
int n, ret = 0; | |
n = regcomp (&re, pattern, cflags); | |
if (n != 0) | |
{ | |
char buf[500]; | |
if (eflags == -1) | |
{ | |
static struct { reg_errcode_t code; const char *name; } codes [] | |
#define C(x) { REG_##x, #x } | |
= { C(NOERROR), C(NOMATCH), C(BADPAT), C(ECOLLATE), | |
C(ECTYPE), C(EESCAPE), C(ESUBREG), C(EBRACK), | |
C(EPAREN), C(EBRACE), C(BADBR), C(ERANGE), | |
C(ESPACE), C(BADRPT) }; | |
for (int i = 0; i < sizeof (codes) / sizeof (codes[0]); ++i) | |
if (n == codes[i].code) | |
{ | |
if (strcmp (string, codes[i].name)) | |
{ | |
printf ("%s regcomp returned REG_%s (expected REG_%s)\n", | |
fail, codes[i].name, string); | |
return 1; | |
} | |
return 0; | |
} | |
printf ("%s regcomp return value REG_%d\n", fail, n); | |
return 1; | |
} | |
regerror (n, &re, buf, sizeof (buf)); | |
printf ("%s regcomp failed: %s\n", fail, buf); | |
return 1; | |
} | |
if (eflags == -1) | |
{ | |
regfree (&re); | |
/* The test case file assumes something only guaranteed by the | |
rxspencer regex implementation. Namely that for empty | |
expressions regcomp() return REG_EMPTY. This is not the case | |
for us and so we ignore this error. */ | |
if (strcmp (string, "EMPTY") == 0) | |
return 0; | |
printf ("%s regcomp unexpectedly succeeded\n", fail); | |
return 1; | |
} | |
if (regexec (&re, string, 10, rm, eflags)) | |
{ | |
regfree (&re); | |
if (expect == NULL) | |
return 0; | |
printf ("%s regexec failed\n", fail); | |
return 1; | |
} | |
regfree (&re); | |
if (expect == NULL) | |
{ | |
printf ("%s regexec unexpectedly succeeded\n", fail); | |
return 1; | |
} | |
if (cflags & REG_NOSUB) | |
return 0; | |
ret = check_match (rm, 0, string, expect, fail); | |
if (matches == NULL) | |
return ret; | |
for (n = 1; ret == 0 && n < 10; ++n) | |
{ | |
char *p = NULL; | |
if (matches) | |
{ | |
p = strchr (matches, ','); | |
if (p != NULL) | |
*p = '\0'; | |
} | |
ret = check_match (rm, n, string, matches ?: "-", fail); | |
if (p) | |
{ | |
*p = ','; | |
matches = p + 1; | |
} | |
else | |
matches = NULL; | |
} | |
return ret; | |
} | |
static int | |
mb_test (const char *pattern, int cflags, const char *string, int eflags, | |
char *expect, const char *matches, const char *letters, | |
const char *fail) | |
{ | |
char *pattern_mb = mb_frob_pattern (pattern, letters); | |
const char *string_mb | |
= eflags == -1 ? string : mb_frob_string (string, letters); | |
char *expect_mb = mb_frob_string (expect, letters); | |
char *matches_mb = mb_frob_string (matches, letters); | |
int ret = 0; | |
if (!pattern_mb || !string_mb | |
|| (expect && !expect_mb) || (matches && !matches_mb)) | |
{ | |
printf ("%s %m", fail); | |
ret = 1; | |
} | |
else | |
ret = test (pattern_mb, cflags, string_mb, eflags, expect_mb, | |
matches_mb, fail); | |
free (matches_mb); | |
free (expect_mb); | |
if (string_mb != string) | |
free ((char *) string_mb); | |
free (pattern_mb); | |
return ret; | |
} | |
static int | |
mb_tests (const char *pattern, int cflags, const char *string, int eflags, | |
char *expect, const char *matches) | |
{ | |
int ret = 0; | |
int i; | |
char letters[9], fail[20]; | |
/* The tests aren't supposed to work with xdigit, since a-dA-D are | |
hex digits while \'a \'A \v{c}\v{C}\v{d}\v{D}\'e \'E are not. */ | |
if (strstr (pattern, "[:xdigit:]")) | |
return 0; | |
/* XXX: regex ATM handles only single byte equivalence classes. */ | |
if (strstr (pattern, "[[=b=]]")) | |
return 0; | |
for (i = 1; i < 16; ++i) | |
{ | |
char *p = letters; | |
if (i & 1) | |
{ | |
if (!strchr (pattern, 'a') && !strchr (string, 'a') | |
&& !strchr (pattern, 'A') && !strchr (string, 'A')) | |
continue; | |
*p++ = 'a', *p++ = 'A'; | |
} | |
if (i & 2) | |
{ | |
if (!strchr (pattern, 'b') && !strchr (string, 'b') | |
&& !strchr (pattern, 'B') && !strchr (string, 'B')) | |
continue; | |
*p++ = 'b', *p++ = 'B'; | |
} | |
if (i & 4) | |
{ | |
if (!strchr (pattern, 'c') && !strchr (string, 'c') | |
&& !strchr (pattern, 'C') && !strchr (string, 'C')) | |
continue; | |
*p++ = 'c', *p++ = 'C'; | |
} | |
if (i & 8) | |
{ | |
if (!strchr (pattern, 'd') && !strchr (string, 'd') | |
&& !strchr (pattern, 'D') && !strchr (string, 'D')) | |
continue; | |
*p++ = 'd', *p++ = 'D'; | |
} | |
*p++ = '\0'; | |
sprintf (fail, "UTF-8 %s FAIL", letters); | |
ret |= mb_test (pattern, cflags, string, eflags, expect, matches, | |
letters, fail); | |
} | |
return ret; | |
} | |
int | |
main (int argc, char **argv) | |
{ | |
int ret = 0; | |
char *line = NULL; | |
size_t line_len = 0; | |
ssize_t len; | |
FILE *f; | |
static int test_utf8 = 0; | |
static const struct option options[] = | |
{ | |
{"utf8", no_argument, &test_utf8, 1}, | |
{NULL, 0, NULL, 0 } | |
}; | |
mtrace (); | |
while (getopt_long (argc, argv, "", options, NULL) >= 0); | |
if (optind + 1 != argc) | |
{ | |
fprintf (stderr, "Missing test filename\n"); | |
return 1; | |
} | |
f = fopen (argv[optind], "r"); | |
if (f == NULL) | |
{ | |
fprintf (stderr, "Couldn't open %s\n", argv[optind]); | |
return 1; | |
} | |
while ((len = getline (&line, &line_len, f)) > 0) | |
{ | |
char *pattern, *flagstr, *string, *expect, *matches, *p; | |
int cflags = REG_EXTENDED, eflags = 0, try_bre_ere = 0; | |
if (line[len - 1] == '\n') | |
line[len - 1] = '\0'; | |
/* Skip comments and empty lines. */ | |
if (*line == '#' || *line == '\0') | |
continue; | |
puts (line); | |
fflush (stdout); | |
pattern = strtok (line, "\t"); | |
if (pattern == NULL) | |
continue; | |
if (strcmp (pattern, "\"\"") == 0) | |
pattern += 2; | |
flagstr = strtok (NULL, "\t"); | |
if (flagstr == NULL) | |
continue; | |
string = strtok (NULL, "\t"); | |
if (string == NULL) | |
continue; | |
if (strcmp (string, "\"\"") == 0) | |
string += 2; | |
for (p = flagstr; *p; ++p) | |
switch (*p) | |
{ | |
case '-': | |
break; | |
case 'b': | |
cflags &= ~REG_EXTENDED; | |
break; | |
case '&': | |
try_bre_ere = 1; | |
break; | |
case 'C': | |
eflags = -1; | |
break; | |
case 'i': | |
cflags |= REG_ICASE; | |
break; | |
case 's': | |
cflags |= REG_NOSUB; | |
break; | |
case 'n': | |
cflags |= REG_NEWLINE; | |
break; | |
case '^': | |
eflags |= REG_NOTBOL; | |
break; | |
case '$': | |
eflags |= REG_NOTEOL; | |
break; | |
case 'm': | |
case 'p': | |
case '#': | |
/* Not supported. */ | |
flagstr = NULL; | |
break; | |
} | |
if (flagstr == NULL) | |
continue; | |
replace_special_chars (pattern); | |
glibc_re_syntax (pattern); | |
if (eflags != -1) | |
replace_special_chars (string); | |
expect = strtok (NULL, "\t"); | |
matches = NULL; | |
if (expect != NULL) | |
{ | |
replace_special_chars (expect); | |
matches = strtok (NULL, "\t"); | |
if (matches != NULL) | |
replace_special_chars (matches); | |
} | |
if (setlocale (LC_ALL, "C") == NULL) | |
{ | |
puts ("setlocale C failed"); | |
ret = 1; | |
} | |
if (test (pattern, cflags, string, eflags, expect, matches, "FAIL") | |
|| (try_bre_ere | |
&& test (pattern, cflags & ~REG_EXTENDED, string, eflags, | |
expect, matches, "FAIL"))) | |
ret = 1; | |
else if (test_utf8) | |
{ | |
if (setlocale (LC_ALL, "cs_CZ.UTF-8") == NULL) | |
{ | |
puts ("setlocale cs_CZ.UTF-8 failed"); | |
ret = 1; | |
} | |
else if (test (pattern, cflags, string, eflags, expect, matches, | |
"UTF-8 FAIL") | |
|| (try_bre_ere | |
&& test (pattern, cflags & ~REG_EXTENDED, string, | |
eflags, expect, matches, "UTF-8 FAIL"))) | |
ret = 1; | |
else if (mb_tests (pattern, cflags, string, eflags, expect, matches) | |
|| (try_bre_ere | |
&& mb_tests (pattern, cflags & ~REG_EXTENDED, string, | |
eflags, expect, matches))) | |
ret = 1; | |
} | |
} | |
free (line); | |
fclose (f); | |
return ret; | |
} |