mscan: u8putstr: assume wcwidth of -1 means actually 2 (probably emojis)

5 years ago · 0d73424edf
parent b052723eac
commit 0d73424edf
1 changed files with 4 additions and 1 deletions
--- a/mscan.c
+++ b/mscan.c
@ -56,7 +56,10 @@ u8putstr(FILE *out, char *s, ssize_t l, int pad)
 				l--;
 				fprintf(out, "%lc", (wint_t)replacement);
 			} else {
-				l -= wcwidth((wchar_t)c);
+				int w = wcwidth((wchar_t)c);
+				if (w < 0)
+					w = 2;   /* assume worst width */
+				l -= w;
 				if (l >= 0)
 					fwrite(s, 1, r, out);
 			}