[PATCH] grep -z: do not use NUL to after line number

[Mark Lodato <lodatom@gmail.com>]

This makes `git grep -z' consistent with GNU `grep -Z' and also allows
the reader of the output to determine whether each line is a match,
context, or function.

Signed-off-by: Mark Lodato <lodatom@gmail.com>
---
It seems like this should have been the original behavior, but I don't know if
it has been too long to change the output format, especially since this option
is used exclusively for processing by scripts.  Perhaps as a new option (-Z?)
or environment variable?

 grep.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/grep.c b/grep.c
index 190139c..82958f2 100644
--- a/grep.c
+++ b/grep.c
@@ -469,9 +469,9 @@ static void output_color(struct grep_opt *opt, const void *data, size_t size,
 		opt->output(opt, data, size);
 }
 
-static void output_sep(struct grep_opt *opt, char sign)
+static void output_sep(struct grep_opt *opt, char sign, int after_name)
 {
-	if (opt->null_following_name)
+	if (after_name && opt->null_following_name)
 		opt->output(opt, "\0", 1);
 	else
 		output_color(opt, &sign, 1, opt->color_sep);
@@ -762,13 +762,13 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol,
 
 	if (!opt->heading && opt->pathname) {
 		output_color(opt, name, strlen(name), opt->color_filename);
-		output_sep(opt, sign);
+		output_sep(opt, sign, 1);
 	}
 	if (opt->linenum) {
 		char buf[32];
 		snprintf(buf, sizeof(buf), "%d", lno);
 		output_color(opt, buf, strlen(buf), opt->color_lineno);
-		output_sep(opt, sign);
+		output_sep(opt, sign, 0);
 	}
 	if (opt->color) {
 		regmatch_t match;
@@ -1152,7 +1152,7 @@ static int grep_source_1(struct grep_opt *opt, struct grep_source *gs, int colle
 	if (opt->count && count) {
 		char buf[32];
 		output_color(opt, gs->name, strlen(gs->name), opt->color_filename);
-		output_sep(opt, ':');
+		output_sep(opt, ':', 1);
 		snprintf(buf, sizeof(buf), "%u\n", count);
 		opt->output(opt, buf, strlen(buf));
 		return 1;
-- 
1.7.10