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authorTaylor Blau <me@ttaylorr.com>2018-07-03 21:51:56 (GMT)
committerJunio C Hamano <gitster@pobox.com>2018-07-03 22:10:30 (GMT)
commitc707ded332375a5b51c1acf9b7ce1c29cbd4536d (patch)
treeb70596118146708e73966b9dc74d35a5fb57e9d5
parent240cf2a25744b45c514fe850363721615a1c4b8c (diff)
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grep.c: extract show_line_header()
The grep code invokes show_line() to display the contents of a matched or context line in its output. Part of this execution is to print a line header that includes information such as the kind, the line- and column-number and etc. of that match. To prepare for the addition of an option to print only the matching component(s) of a non-context line, we must prepare for the possibility that a single line may contain multiple matching parts, and thus will need multiple headers printed for a single line. Extracting show_line_header allows us to do just that. In the subsequent commit, it will be used within the colorization loop to print out only the matching parts of a line, optionally with LFs delimiting sub-matches. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--grep.c44
1 files changed, 25 insertions, 19 deletions
diff --git a/grep.c b/grep.c
index 992673f..4ff8a73 100644
--- a/grep.c
+++ b/grep.c
@@ -1410,26 +1410,9 @@ static int next_match(struct grep_opt *opt, char *bol, char *eol,
return hit;
}
-static void show_line(struct grep_opt *opt, char *bol, char *eol,
- const char *name, unsigned lno, ssize_t cno, char sign)
+static void show_line_header(struct grep_opt *opt, const char *name,
+ unsigned lno, ssize_t cno, char sign)
{
- int rest = eol - bol;
- const char *match_color, *line_color = NULL;
-
- if (opt->file_break && opt->last_shown == 0) {
- if (opt->show_hunk_mark)
- opt->output(opt, "\n", 1);
- } else if (opt->pre_context || opt->post_context || opt->funcbody) {
- if (opt->last_shown == 0) {
- if (opt->show_hunk_mark) {
- output_color(opt, "--", 2, opt->color_sep);
- opt->output(opt, "\n", 1);
- }
- } else if (lno > opt->last_shown + 1) {
- output_color(opt, "--", 2, opt->color_sep);
- opt->output(opt, "\n", 1);
- }
- }
if (opt->heading && opt->last_shown == 0) {
output_color(opt, name, strlen(name), opt->color_filename);
opt->output(opt, "\n", 1);
@@ -1457,6 +1440,29 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol,
output_color(opt, buf, strlen(buf), opt->color_columnno);
output_sep(opt, sign);
}
+}
+
+static void show_line(struct grep_opt *opt, char *bol, char *eol,
+ const char *name, unsigned lno, ssize_t cno, char sign)
+{
+ int rest = eol - bol;
+ const char *match_color, *line_color = NULL;
+
+ if (opt->file_break && opt->last_shown == 0) {
+ if (opt->show_hunk_mark)
+ opt->output(opt, "\n", 1);
+ } else if (opt->pre_context || opt->post_context || opt->funcbody) {
+ if (opt->last_shown == 0) {
+ if (opt->show_hunk_mark) {
+ output_color(opt, "--", 2, opt->color_sep);
+ opt->output(opt, "\n", 1);
+ }
+ } else if (lno > opt->last_shown + 1) {
+ output_color(opt, "--", 2, opt->color_sep);
+ opt->output(opt, "\n", 1);
+ }
+ }
+ show_line_header(opt, name, lno, cno, sign);
if (opt->color) {
regmatch_t match;
enum grep_context ctx = GREP_CONTEXT_BODY;