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glibc/posix/tst-pcre.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> | |
int | |
main (int argc, char **argv) | |
{ | |
int ret = 0; | |
char *line = NULL; | |
size_t line_len = 0; | |
ssize_t len; | |
FILE *f; | |
char *pattern = NULL, *string = NULL; | |
regmatch_t rm[20]; | |
size_t pattern_alloced = 0, string_alloced = 0; | |
int ignorecase = 0; | |
int pattern_valid = 0, rm_valid = 0; | |
size_t linenum; | |
mtrace (); | |
if (argc < 2) | |
{ | |
fprintf (stderr, "Missing test filename\n"); | |
return 1; | |
} | |
f = fopen (argv[1], "r"); | |
if (f == NULL) | |
{ | |
fprintf (stderr, "Couldn't open %s\n", argv[1]); | |
return 1; | |
} | |
if ((len = getline (&line, &line_len, f)) <= 0 | |
|| strncmp (line, "# PCRE", 6) != 0) | |
{ | |
fprintf (stderr, "Not a PCRE test file\n"); | |
fclose (f); | |
free (line); | |
return 1; | |
} | |
linenum = 1; | |
while ((len = getline (&line, &line_len, f)) > 0) | |
{ | |
char *p; | |
unsigned long num; | |
++linenum; | |
if (line[len - 1] == '\n') | |
line[--len] = '\0'; | |
if (line[0] == '#') | |
continue; | |
if (line[0] == '\0') | |
{ | |
/* End of test. */ | |
ignorecase = 0; | |
pattern_valid = 0; | |
rm_valid = 0; | |
continue; | |
} | |
if (line[0] == '/') | |
{ | |
/* Pattern. */ | |
p = strrchr (line + 1, '/'); | |
pattern_valid = 0; | |
rm_valid = 0; | |
if (p == NULL) | |
{ | |
printf ("%zd: Invalid pattern line: %s\n", linenum, line); | |
ret = 1; | |
continue; | |
} | |
if (p[1] == 'i' && p[2] == '\0') | |
ignorecase = 1; | |
else if (p[1] != '\0') | |
{ | |
printf ("%zd: Invalid pattern line: %s\n", linenum, line); | |
ret = 1; | |
continue; | |
} | |
if (pattern_alloced < (size_t) (p - line)) | |
{ | |
pattern = realloc (pattern, p - line); | |
if (pattern == NULL) | |
{ | |
printf ("%zd: Cannot record pattern: %m\n", linenum); | |
ret = 1; | |
break; | |
} | |
pattern_alloced = p - line; | |
} | |
memcpy (pattern, line + 1, p - line - 1); | |
pattern[p - line - 1] = '\0'; | |
pattern_valid = 1; | |
continue; | |
} | |
if (strncmp (line, " ", 4) == 0) | |
{ | |
regex_t re; | |
int n; | |
if (!pattern_valid) | |
{ | |
printf ("%zd: No previous valid pattern %s\n", linenum, line); | |
continue; | |
} | |
if (string_alloced < (size_t) (len - 3)) | |
{ | |
string = realloc (string, len - 3); | |
if (string == NULL) | |
{ | |
printf ("%zd: Cannot record search string: %m\n", linenum); | |
ret = 1; | |
break; | |
} | |
string_alloced = len - 3; | |
} | |
memcpy (string, line + 4, len - 3); | |
n = regcomp (&re, pattern, | |
REG_EXTENDED | (ignorecase ? REG_ICASE : 0)); | |
if (n != 0) | |
{ | |
char buf[500]; | |
regerror (n, &re, buf, sizeof (buf)); | |
printf ("%zd: regcomp failed for %s: %s\n", | |
linenum, pattern, buf); | |
ret = 1; | |
continue; | |
} | |
if (regexec (&re, string, 20, rm, 0)) | |
{ | |
rm[0].rm_so = -1; | |
rm[0].rm_eo = -1; | |
} | |
regfree (&re); | |
rm_valid = 1; | |
continue; | |
} | |
if (!rm_valid) | |
{ | |
printf ("%zd: No preceeding pattern or search string\n", linenum); | |
ret = 1; | |
continue; | |
} | |
if (strcmp (line, "No match") == 0) | |
{ | |
if (rm[0].rm_so != -1 || rm[0].rm_eo != -1) | |
{ | |
printf ("%zd: /%s/ on %s unexpectedly matched %d..%d\n", | |
linenum, pattern, string, rm[0].rm_so, rm[0].rm_eo); | |
ret = 1; | |
} | |
continue; | |
} | |
p = line; | |
if (*p == ' ') | |
++p; | |
num = strtoul (p, &p, 10); | |
if (num >= 20 || *p != ':' || p[1] != ' ') | |
{ | |
printf ("%zd: Invalid line %s\n", linenum, line); | |
ret = 1; | |
continue; | |
} | |
if (rm[num].rm_so == -1 || rm[num].rm_eo == -1) | |
{ | |
if (strcmp (p + 2, "<unset>") != 0) | |
{ | |
printf ("%zd: /%s/ on %s unexpectedly failed to match register %ld %d..%d\n", | |
linenum, pattern, string, num, | |
rm[num].rm_so, rm[num].rm_eo); | |
ret = 1; | |
} | |
continue; | |
} | |
if (rm[num].rm_eo < rm[num].rm_so | |
|| rm[num].rm_eo - rm[num].rm_so != len - (p + 2 - line) | |
|| strncmp (p + 2, string + rm[num].rm_so, | |
rm[num].rm_eo - rm[num].rm_so) != 0) | |
{ | |
printf ("%zd: /%s/ on %s unexpectedly failed to match %s for register %ld %d..%d\n", | |
linenum, pattern, string, p + 2, num, | |
rm[num].rm_so, rm[num].rm_eo); | |
ret = 1; | |
continue; | |
} | |
} | |
free (pattern); | |
free (string); | |
free (line); | |
fclose (f); | |
return ret; | |
} |