nano

commit 4e667bd048c813a410eea7e68a2b7c0c980330ee
parent ba2e6f43c284770eac121eb418c43414e8fde953
Author: Benno Schulenberg <bensberg@telfort.nl>
Date:   Sun,  3 Jun 2018 17:58:05 +0200

tweaks: reduce the counting of characters to just the needed function

Evade the indirect use of the general-purpose function parse_mbchar().
This reduces the counting time by roughly ten percent.

Diffstat:
M
src/chars.c
 | 
10
+++++++---

1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/src/chars.c b/src/chars.c
@@ -539,9 +539,13 @@ size_t mbstrlen(const char *s)
 	if (use_utf8) {
 		size_t n = 0;
 
-		for (; *s != '\0' && maxlen > 0; s += move_mbright(s, 0),
-				maxlen--, n++)
-			;
+		while (*s != '\0' && maxlen > 0) {
+			int length = mblen(s, MAXCHARLEN);
+
+			s += (length < 0 ? 1 : length);
+			maxlen--;
+			n++;
+		}
 
 		return n;
 	} else