From 91fff2a2c8756f842cfafa3138ea0af45522e0af Mon Sep 17 00:00:00 2001
From: Benno Schulenberg <bensberg@justemail.net>
Date: Sun, 5 Jun 2016 21:18:32 +0200
Subject: [PATCH] screen: avoid looking up the width of whitespace and control
codes
Spaces and tabs and control codes never are multi-column glyphs, so
only look up the width for "normal", visible characters.
---
src/winio.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/winio.c b/src/winio.c
index 52843eae..b966c3fc 100644
--- a/src/winio.c
+++ b/src/winio.c
@@ -1787,9 +1787,6 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
}
while (*buf != '\0') {
- if (mbwidth(buf) > 1)
- seen_wide = TRUE;
-
if (*buf == ' ') {
/* Show a space as a visible character, or as a space. */
#ifndef NANO_TINY
@@ -1837,6 +1834,9 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
start_col += mbwidth(character);
free(character);
+
+ if (mbwidth(buf) > 1)
+ seen_wide = TRUE;
}
buf += parse_mbchar(buf, NULL, NULL);
--
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