Bugfix

* lib/utf8.c (utf8_iter0): Switch to error state if utf8_char_width
returned 0

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/utf8.c b/lib/utf8.c
index a25c613..3653d59 100644
--- a/lib/utf8.c
+++ b/lib/utf8.c
@@ -1542,13 +1542,13 @@ utf8_iter0(struct utf8_iterator *itr)
 
     if (itr->length == 0) {
         itr->end = 1;
         return 1;
     }
     n = utf8_char_width(itr->curptr);
-    if (n > itr->length) {
+    if (n == 0 || n > itr->length) {
         itr->end = 1;
         itr->err = 1;
         return 1;
     }
     
     itr->curwidth = n;