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/* Regular expression tests.
Copyright (C) 2003-2018 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;
}
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