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authorRené Scharfe <rene.scharfe@lsrfire.ath.cx>2011-08-01 17:20:53 (GMT)
committerJunio C Hamano <gitster@pobox.com>2011-08-01 23:09:15 (GMT)
commitba8ea7496f2b95c49fccb72ed6b332afbd865e7b (patch)
treec52a2d2007a2e209813df918dede0b05bbd08be8 /grep.c
parentb35acb53458d0f99ba2400b902980b35e5acc2d3 (diff)
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grep: add option to show whole function as context
Add a new option, -W, to show the whole surrounding function of a match. It uses the same regular expressions as -p and diff to find the beginning of sections. Currently it will not display comments in front of a function, but those that are following one. Despite this shortcoming it is already useful, e.g. to simply see a more complete applicable context or to extract whole functions. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'grep.c')
-rw-r--r--grep.c32
1 files changed, 22 insertions, 10 deletions
diff --git a/grep.c b/grep.c
index 04e9ba4..26e8d8e 100644
--- a/grep.c
+++ b/grep.c
@@ -724,7 +724,7 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol,
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) {
+ } 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);
@@ -819,10 +819,13 @@ static void show_funcname_line(struct grep_opt *opt, const char *name,
}
static void show_pre_context(struct grep_opt *opt, const char *name, char *buf,
- char *bol, unsigned lno)
+ char *bol, char *end, unsigned lno)
{
unsigned cur = lno, from = 1, funcname_lno = 0;
- int funcname_needed = opt->funcname;
+ int funcname_needed = !!opt->funcname;
+
+ if (opt->funcbody && !match_funcname(opt, bol, end))
+ funcname_needed = 2;
if (opt->pre_context < lno)
from = lno - opt->pre_context;
@@ -830,7 +833,8 @@ static void show_pre_context(struct grep_opt *opt, const char *name, char *buf,
from = opt->last_shown + 1;
/* Rewind. */
- while (bol > buf && cur > from) {
+ while (bol > buf &&
+ cur > (funcname_needed == 2 ? opt->last_shown + 1 : from)) {
char *eol = --bol;
while (bol > buf && bol[-1] != '\n')
@@ -942,13 +946,15 @@ static int grep_buffer_1(struct grep_opt *opt, const char *name,
int binary_match_only = 0;
unsigned count = 0;
int try_lookahead = 0;
+ int show_function = 0;
enum grep_context ctx = GREP_CONTEXT_HEAD;
xdemitconf_t xecfg;
if (!opt->output)
opt->output = std_output;
- if (opt->pre_context || opt->post_context || opt->file_break) {
+ if (opt->pre_context || opt->post_context || opt->file_break ||
+ opt->funcbody) {
/* Show hunk marks, except for the first file. */
if (opt->last_shown)
opt->show_hunk_mark = 1;
@@ -1004,7 +1010,8 @@ static int grep_buffer_1(struct grep_opt *opt, const char *name,
*/
if (try_lookahead
&& !(last_hit
- && lno <= last_hit + opt->post_context)
+ && (show_function ||
+ lno <= last_hit + opt->post_context))
&& look_ahead(opt, &left, &lno, &bol))
break;
eol = end_of_line(bol, &left);
@@ -1051,15 +1058,20 @@ static int grep_buffer_1(struct grep_opt *opt, const char *name,
/* Hit at this line. If we haven't shown the
* pre-context lines, we would need to show them.
*/
- if (opt->pre_context)
- show_pre_context(opt, name, buf, bol, lno);
+ if (opt->pre_context || opt->funcbody)
+ show_pre_context(opt, name, buf, bol, eol, lno);
else if (opt->funcname)
show_funcname_line(opt, name, buf, bol, lno);
show_line(opt, bol, eol, name, lno, ':');
last_hit = lno;
+ if (opt->funcbody)
+ show_function = 1;
+ goto next_line;
}
- else if (last_hit &&
- lno <= last_hit + opt->post_context) {
+ if (show_function && match_funcname(opt, bol, eol))
+ show_function = 0;
+ if (show_function ||
+ (last_hit && lno <= last_hit + opt->post_context)) {
/* If the last hit is within the post context,
* we need to show this line.
*/