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grep: fix colouring of matches with zero length

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If a zero-length match is encountered, break out of loop and show the rest
of the line uncoloured.  Otherwise we'd be looping forever, trying to make
progress by advancing the pointer by zero characters.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe 2009-06-01 23:53:05 +02:00 committed by Junio C Hamano
parent dbb6a4ada6
commit 1f5b9cc40e
1 changed files with 2 additions and 0 deletions
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2
grep.c
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@ -500,6 +500,8 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol,
*eol = '\0';
while (next_match(opt, bol, eol, ctx, &match, eflags)) {
if (match.rm_so == match.rm_eo)
break;
printf("%.*s%s%.*s%s",
(int)match.rm_so, bol,
opt->color_match,