Merge branch 'js/maint-diff-color-words' into maint

* js/maint-diff-color-words:
  diff --color-words: bit of clean-up
  diff --color-words -U0: fix the location of hunk headers
  t4034-diff-words: add a test for word diff without context

Conflicts:
	diff.c

1 files changed, 12 insertions, 8 deletions

diff --git a/diff.c b/diff.c
index b88c7d11b1..cc0cb2b31f 100644
--- a/diff.c
+++ b/diff.c
@@ -685,14 +685,18 @@ static void diff_words_show(struct diff_words_data *diff_words)
 	diff_words->minus.text.size = diff_words->plus.text.size = 0;
 }
 
+/* In "color-words" mode, show word-diff of words accumulated in the buffer */
+static void diff_words_flush(struct emit_callback *ecbdata)
+{
+	if (ecbdata->diff_words->minus.text.size ||
+	    ecbdata->diff_words->plus.text.size)
+		diff_words_show(ecbdata->diff_words);
+}
+
 static void free_diff_words_data(struct emit_callback *ecbdata)
 {
 	if (ecbdata->diff_words) {
-		/* flush buffers */
-		if (ecbdata->diff_words->minus.text.size ||
-				ecbdata->diff_words->plus.text.size)
-			diff_words_show(ecbdata->diff_words);
-
+		diff_words_flush(ecbdata);
 		free (ecbdata->diff_words->minus.text.ptr);
 		free (ecbdata->diff_words->minus.orig);
 		free (ecbdata->diff_words->plus.text.ptr);
@@ -772,6 +776,8 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
 	}
 
 	if (line[0] == '@') {
+		if (ecbdata->diff_words)
+			diff_words_flush(ecbdata);
 		len = sane_truncate_line(ecbdata, line, len);
 		find_lno(line, ecbdata);
 		emit_line(ecbdata->file,
@@ -797,9 +803,7 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
 					  &ecbdata->diff_words->plus);
 			return;
 		}
-		if (ecbdata->diff_words->minus.text.size ||
-		    ecbdata->diff_words->plus.text.size)
-			diff_words_show(ecbdata->diff_words);
+		diff_words_flush(ecbdata);
 		line++;
 		len--;
 		emit_line(ecbdata->file, plain, reset, line, len);