nano

commit 18ba7f60c165d271d7734cc18a4c5001cb9efb32
parent 5c3e00d70ae7cb7e2e52baf6edf913db462757b3
Author: Benno Schulenberg <bensberg@telfort.nl>
Date:   Tue,  8 Mar 2022 09:39:40 +0100

painting: tighten the check for a lacking end match on a colored line

As it's possible for the start regex to match what is actually the end
match of a multiline thing (see the Python triple quotes, for example),
make sure that such a detected start match is *not* an end match, just
to avoid a needless full-screen refresh.

Diffstat:
M
src/color.c
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/color.c b/src/color.c
@@ -262,7 +262,9 @@ void check_the_multis(linestruct *line)
 			if (!astart)
 				continue;
 		} else if (line->multidata[ink->id] & (WHOLELINE|WOULDBE)) {
-			if (!astart && !anend)
+			/* Ensure that a detected start match is not actually an end match. */
+			if (!anend && (!astart || regexec(ink->end, line->data, 1,
+												&endmatch, 0) != 0))
 				continue;
 		} else if (line->multidata[ink->id] == JUSTONTHIS) {
 			if (astart && anend && regexec(ink->start, line->data + startmatch.rm_eo +