From 11625c7166b7e4dad414606227acec2de1c36464 Mon Sep 17 00:00:00 2001
From: "czarkoff@gmail.com" <czarkoff@gmail.com>
Date: Tue, 28 Oct 2014 12:55:28 +0100
Subject: [PATCH] Replace character with U+FFFD if wcwidth() is -1
Helpful when new Unicode codepoints are not recognized by libc.
---
st.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/st.c b/st.c
index 23dd7f1..ad52280 100644
--- a/st.c
+++ b/st.c
@@ -2576,7 +2576,10 @@ tputc(char *c, int len) {
unicodep = ascii = *c;
} else {
utf8decode(c, &unicodep, UTF_SIZ);
- width = wcwidth(unicodep);
+ if ((width = wcwidth(unicodep)) == -1) {
+ c = "\357\277\275"; /* UTF_INVALID */
+ width = 1;
+ }
control = ISCONTROLC1(unicodep);
ascii = unicodep;
}
--
2.20.1