From cde480c6939e62771ba3b60ef4eb848031aee9f9 Mon Sep 17 00:00:00 2001
From: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Sat, 9 May 2020 14:03:14 +0200
Subject: optimize column width calculation and utf-8 encode for ASCII
In particular on OpenBSD and on glibc wcwidth() is quite expensive.
On musl there is little difference.
---
st.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/st.c b/st.c
index 5d4054f..1414f98 100644
--- a/st.c
+++ b/st.c
@@ -2307,7 +2307,7 @@ tputc(Rune u)
Glyph *gp;
control = ISCONTROL(u);
- if (!IS_SET(MODE_UTF8 | MODE_SIXEL)) {
+ if (u < 127 || !IS_SET(MODE_UTF8 | MODE_SIXEL)) {
c[0] = u;
width = len = 1;
} else {
--
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