[PATCH 49/76] diff.c: convert --word-diff-regex

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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 diff.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/diff.c b/diff.c
index b80eefe9bc..3e55c2fd1f 100644
--- a/diff.c
+++ b/diff.c
@@ -5096,6 +5096,18 @@ static int diff_opt_word_diff(const struct option *opt,
 	return 0;
 }
 
+static int diff_opt_word_diff_regex(const struct option *opt,
+				    const char *arg, int unset)
+{
+	struct diff_options *options = opt->value;
+
+	BUG_ON_OPT_NEG(unset);
+	if (options->word_diff == DIFF_WORDS_NONE)
+		options->word_diff = DIFF_WORDS_PLAIN;
+	options->word_regex = arg;
+	return 0;
+}
+
 static void prep_parse_options(struct diff_options *options)
 {
 	struct option parseopts[] = {
@@ -5261,6 +5273,9 @@ static void prep_parse_options(struct diff_options *options)
 		OPT_CALLBACK_F(0, "word-diff", options, N_("<mode>"),
 			       N_("show word diff, using <mode> to delimit changed words"),
 			       PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_word_diff),
+		OPT_CALLBACK_F(0, "word-diff-regex", options, N_("<regex>"),
+			       N_("use <regex> to decide what a word is"),
+			       PARSE_OPT_NONEG, diff_opt_word_diff_regex),
 
 		OPT_GROUP(N_("Diff other options")),
 		OPT_CALLBACK_F(0, "relative", options, N_("<prefix>"),
@@ -5324,12 +5339,6 @@ int diff_opt_parse(struct diff_options *options,
 		options->use_color = 1;
 		options->word_diff = DIFF_WORDS_COLOR;
 	}
-	else if ((argcount = parse_long_opt("word-diff-regex", av, &optarg))) {
-		if (options->word_diff == DIFF_WORDS_NONE)
-			options->word_diff = DIFF_WORDS_PLAIN;
-		options->word_regex = optarg;
-		return argcount;
-	}
 	else if (!strcmp(arg, "--exit-code"))
 		options->flags.exit_with_status = 1;
 	else if (!strcmp(arg, "--quiet"))
-- 
2.20.0.482.g66447595a7




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