diff options
author | Carl Worth <cworth@cworth.org> | 2009-10-21 15:06:52 -0700 |
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committer | Carl Worth <cworth@cworth.org> | 2009-10-21 15:07:20 -0700 |
commit | d008389a4ae306e510b11cc18947d305704f9236 (patch) | |
tree | eade87a95f0353f10ce2df093b0261f34cfdddd8 /xutil.c | |
parent | 22b2265cacb2930c11b75282046707355446788e (diff) |
Add wrappers for regcomp and regexec to xutil.c.
These will be handy for some parsing.
Diffstat (limited to 'xutil.c')
-rw-r--r-- | xutil.c | 39 |
1 files changed, 39 insertions, 0 deletions
@@ -92,3 +92,42 @@ xstrndup (const char *s, size_t n) return ret; } + +void +xregcomp (regex_t *preg, const char *regex, int cflags) +{ + int rerr; + + rerr = regcomp (preg, regex, cflags); + if (rerr) { + size_t error_size = regerror (rerr, preg, NULL, 0); + char *error = xmalloc (error_size); + + regerror (rerr, preg, error, error_size); + fprintf (stderr, "Internal error compiling regex %s: %s\n", + regex, error); + free (error); + exit (1); + } +} + +int +xregexec (const regex_t *preg, const char *string, + size_t nmatch, regmatch_t pmatch[], int eflags) +{ + int i, rerr; + + rerr = regexec (preg, string, nmatch, pmatch, eflags); + if (rerr) + return rerr; + + for (i = 0; i < nmatch; i++) { + if (pmatch[i].rm_so == -1) { + fprintf (stderr, "Internal error matching regex against %s: Sub-match %d not found\n", + string, i); + exit (1); + } + } + + return 0; +} |