chars: don't try to see a character in an empty line

This fixes https://savannah.gnu.org/bugs/?48578.
2016-07-21 09:46:47 +02:00 · 2016-07-21 09:46:47 +02:00 · bf091be778
parent 103dd06347
commit bf091be778
1 changed files with 3 additions and 0 deletions
--- a/src/chars.c
+++ b/src/chars.c
@ -190,6 +190,9 @@ bool is_word_mbchar(const char *c, bool allow_punct)
 {
    assert(c != NULL);

+    if (*c == '\0')
+	return FALSE;
+
    if (is_alnum_mbchar(c))
 	return TRUE;