241 lines
5.1 KiB
C
241 lines
5.1 KiB
C
/* Regular expression tests.
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Copyright (C) 2003-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sys/types.h>
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#include <mcheck.h>
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#include <regex.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int
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main (int argc, char **argv)
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{
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int ret = 0;
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char *line = NULL;
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size_t line_len = 0;
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ssize_t len;
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FILE *f;
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char *pattern = NULL, *string = NULL;
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regmatch_t rm[20];
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size_t pattern_alloced = 0, string_alloced = 0;
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int ignorecase = 0;
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int pattern_valid = 0, rm_valid = 0;
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size_t linenum;
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mtrace ();
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if (argc < 2)
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{
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fprintf (stderr, "Missing test filename\n");
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return 1;
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}
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f = fopen (argv[1], "r");
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if (f == NULL)
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{
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fprintf (stderr, "Couldn't open %s\n", argv[1]);
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return 1;
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}
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if ((len = getline (&line, &line_len, f)) <= 0
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|| strncmp (line, "# PCRE", 6) != 0)
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{
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fprintf (stderr, "Not a PCRE test file\n");
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fclose (f);
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free (line);
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return 1;
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}
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linenum = 1;
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while ((len = getline (&line, &line_len, f)) > 0)
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{
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char *p;
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unsigned long num;
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++linenum;
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if (line[len - 1] == '\n')
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line[--len] = '\0';
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if (line[0] == '#')
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continue;
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if (line[0] == '\0')
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{
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/* End of test. */
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ignorecase = 0;
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pattern_valid = 0;
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rm_valid = 0;
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continue;
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}
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if (line[0] == '/')
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{
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/* Pattern. */
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p = strrchr (line + 1, '/');
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pattern_valid = 0;
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rm_valid = 0;
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if (p == NULL)
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{
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printf ("%zd: Invalid pattern line: %s\n", linenum, line);
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ret = 1;
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continue;
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}
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if (p[1] == 'i' && p[2] == '\0')
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ignorecase = 1;
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else if (p[1] != '\0')
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{
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printf ("%zd: Invalid pattern line: %s\n", linenum, line);
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ret = 1;
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continue;
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}
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if (pattern_alloced < (size_t) (p - line))
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{
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pattern = realloc (pattern, p - line);
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if (pattern == NULL)
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{
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printf ("%zd: Cannot record pattern: %m\n", linenum);
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ret = 1;
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break;
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}
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pattern_alloced = p - line;
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}
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memcpy (pattern, line + 1, p - line - 1);
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pattern[p - line - 1] = '\0';
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pattern_valid = 1;
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continue;
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}
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if (strncmp (line, " ", 4) == 0)
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{
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regex_t re;
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int n;
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if (!pattern_valid)
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{
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printf ("%zd: No previous valid pattern %s\n", linenum, line);
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continue;
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}
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if (string_alloced < (size_t) (len - 3))
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{
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string = realloc (string, len - 3);
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if (string == NULL)
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{
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printf ("%zd: Cannot record search string: %m\n", linenum);
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ret = 1;
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break;
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}
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string_alloced = len - 3;
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}
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memcpy (string, line + 4, len - 3);
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n = regcomp (&re, pattern,
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REG_EXTENDED | (ignorecase ? REG_ICASE : 0));
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if (n != 0)
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{
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char buf[500];
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regerror (n, &re, buf, sizeof (buf));
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printf ("%zd: regcomp failed for %s: %s\n",
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linenum, pattern, buf);
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ret = 1;
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continue;
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}
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if (regexec (&re, string, 20, rm, 0))
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{
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rm[0].rm_so = -1;
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rm[0].rm_eo = -1;
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}
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regfree (&re);
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rm_valid = 1;
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continue;
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}
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if (!rm_valid)
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{
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printf ("%zd: No preceeding pattern or search string\n", linenum);
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ret = 1;
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continue;
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}
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if (strcmp (line, "No match") == 0)
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{
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if (rm[0].rm_so != -1 || rm[0].rm_eo != -1)
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{
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printf ("%zd: /%s/ on %s unexpectedly matched %d..%d\n",
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linenum, pattern, string, rm[0].rm_so, rm[0].rm_eo);
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ret = 1;
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}
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continue;
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}
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p = line;
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if (*p == ' ')
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++p;
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num = strtoul (p, &p, 10);
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if (num >= 20 || *p != ':' || p[1] != ' ')
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{
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printf ("%zd: Invalid line %s\n", linenum, line);
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ret = 1;
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continue;
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}
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if (rm[num].rm_so == -1 || rm[num].rm_eo == -1)
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{
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if (strcmp (p + 2, "<unset>") != 0)
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{
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printf ("%zd: /%s/ on %s unexpectedly failed to match register %ld %d..%d\n",
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linenum, pattern, string, num,
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rm[num].rm_so, rm[num].rm_eo);
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ret = 1;
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}
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continue;
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}
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if (rm[num].rm_eo < rm[num].rm_so
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|| rm[num].rm_eo - rm[num].rm_so != len - (p + 2 - line)
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|| strncmp (p + 2, string + rm[num].rm_so,
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rm[num].rm_eo - rm[num].rm_so) != 0)
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{
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printf ("%zd: /%s/ on %s unexpectedly failed to match %s for register %ld %d..%d\n",
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linenum, pattern, string, p + 2, num,
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rm[num].rm_so, rm[num].rm_eo);
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ret = 1;
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continue;
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}
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}
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free (pattern);
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free (string);
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free (line);
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fclose (f);
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return ret;
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}
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