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grep: add color.grep.matchcontext and color.grep.matchselected

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The config option color.grep.match can be used to specify the highlighting
color for matching strings.  Add the options matchContext and matchSelected
to allow different colors to be specified for matching strings in the
context vs. in selected lines.  This is similar to the ms and mc specifiers
in GNU grep's environment variable GREP_COLORS.

Tests are from Zoltan Klinger's earlier attempt to solve the same
issue in a different way.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe
2014-10-27 19:23:05 +01:00
committed by Junio C Hamano
parent eeff891ac7
commit 79a77109d3
4 changed files with 123 additions and 9 deletions
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29
grep.c
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@ -35,7 +35,8 @@ void init_grep_defaults(void)
strcpy(opt->color_filename, "");
strcpy(opt->color_function, "");
strcpy(opt->color_lineno, "");
strcpy(opt->color_match, GIT_COLOR_BOLD_RED);
strcpy(opt->color_match_context, GIT_COLOR_BOLD_RED);
strcpy(opt->color_match_selected, GIT_COLOR_BOLD_RED);
strcpy(opt->color_selected, "");
strcpy(opt->color_sep, GIT_COLOR_CYAN);
opt->color = -1;
@ -96,12 +97,22 @@ int grep_config(const char *var, const char *value, void *cb)
color = opt->color_function;
else if (!strcmp(var, "color.grep.linenumber"))
color = opt->color_lineno;
else if (!strcmp(var, "color.grep.match"))
color = opt->color_match;
else if (!strcmp(var, "color.grep.matchcontext"))
color = opt->color_match_context;
else if (!strcmp(var, "color.grep.matchselected"))
color = opt->color_match_selected;
else if (!strcmp(var, "color.grep.selected"))
color = opt->color_selected;
else if (!strcmp(var, "color.grep.separator"))
color = opt->color_sep;
else if (!strcmp(var, "color.grep.match")) {
int rc = 0;
if (!value)
return config_error_nonbool(var);
color_parse(value, var, opt->color_match_context);
color_parse(value, var, opt->color_match_selected);
return rc;
}
if (color) {
if (!value)
@ -139,7 +150,8 @@ void grep_init(struct grep_opt *opt, const char *prefix)
strcpy(opt->color_filename, def->color_filename);
strcpy(opt->color_function, def->color_function);
strcpy(opt->color_lineno, def->color_lineno);
strcpy(opt->color_match, def->color_match);
strcpy(opt->color_match_context, def->color_match_context);
strcpy(opt->color_match_selected, def->color_match_selected);
strcpy(opt->color_selected, def->color_selected);
strcpy(opt->color_sep, def->color_sep);
}
@ -1079,7 +1091,7 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol,
const char *name, unsigned lno, char sign)
{
int rest = eol - bol;
char *line_color = NULL;
const char *match_color, *line_color = NULL;
if (opt->file_break && opt->last_shown == 0) {
if (opt->show_hunk_mark)
@ -1117,6 +1129,10 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol,
int ch = *eol;
int eflags = 0;
if (sign == ':')
match_color = opt->color_match_selected;
else
match_color = opt->color_match_context;
if (sign == ':')
line_color = opt->color_selected;
else if (sign == '-')
@ -1130,8 +1146,7 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol,
output_color(opt, bol, match.rm_so, line_color);
output_color(opt, bol + match.rm_so,
match.rm_eo - match.rm_so,
opt->color_match);
match.rm_eo - match.rm_so, match_color);
bol += match.rm_eo;
rest -= match.rm_eo;
eflags = REG_NOTBOL;