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-rw-r--r--diff.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/diff.c b/diff.c
index 00c661f82..9fcde963d 100644
--- a/diff.c
+++ b/diff.c
@@ -1380,6 +1380,12 @@ static const struct userdiff_funcname *diff_funcname_pattern(struct diff_filespe
return one->driver->funcname.pattern ? &one->driver->funcname : NULL;
}
+static const char *userdiff_word_regex(struct diff_filespec *one)
+{
+ diff_filespec_load_driver(one);
+ return one->driver->word_regex;
+}
+
void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b)
{
if (!options->a_prefix)
@@ -1540,6 +1546,10 @@ static void builtin_diff(const char *name_a,
ecbdata.diff_words =
xcalloc(1, sizeof(struct diff_words_data));
ecbdata.diff_words->file = o->file;
+ if (!o->word_regex)
+ o->word_regex = userdiff_word_regex(one);
+ if (!o->word_regex)
+ o->word_regex = userdiff_word_regex(two);
if (o->word_regex) {
ecbdata.diff_words->word_regex = (regex_t *)
xmalloc(sizeof(regex_t));