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-rw-r--r--st.c5
1 files changed, 4 insertions, 1 deletions
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;
}