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diffcore-pickaxe: Add regcomp_or_die()

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There's another regcomp code block coming in this function that needs
the same error handling. This function can help avoid duplicating
error handling code.

Helped-by: Jeff King <peff@peff.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2016-06-25 07:22:36 +02:00 committed by Junio C Hamano
parent 18547aacf5
commit 3d5b23a362
1 changed files with 13 additions and 9 deletions
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22
diffcore-pickaxe.c
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@ -198,6 +198,18 @@ static void pickaxe(struct diff_queue_struct *q, struct diff_options *o,
*q = outq;
}
static void regcomp_or_die(regex_t *regex, const char *needle, int cflags)
{
int err = regcomp(regex, needle, cflags);
if (err) {
/* The POSIX.2 people are surely sick */
char errbuf[1024];
regerror(err, regex, errbuf, 1024);
regfree(regex);
die("invalid regex: %s", errbuf);
}
}
void diffcore_pickaxe(struct diff_options *o)
{
const char *needle = o->pickaxe;
@ -206,18 +218,10 @@ void diffcore_pickaxe(struct diff_options *o)
kwset_t kws = NULL;
if (opts & (DIFF_PICKAXE_REGEX | DIFF_PICKAXE_KIND_G)) {
int err;
int cflags = REG_EXTENDED | REG_NEWLINE;
if (DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE))
cflags |= REG_ICASE;
err = regcomp(&regex, needle, cflags);
if (err) {
/* The POSIX.2 people are surely sick */
char errbuf[1024];
regerror(err, &regex, errbuf, 1024);
regfree(&regex);
die("invalid regex: %s", errbuf);
}
regcomp_or_die(&regex, needle, cflags);
regexp = &regex;
} else {
kws = kwsalloc(DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE)