(update_seq_area): Call

[m17n/libotf.git] / example / otfview.c

diff --git a/example/otfview.c b/example/otfview.c
index 98efa4b..9f1995d 100644 (file)
--- a/example/otfview.c
+++ b/example/otfview.c
@@ -296,17 +296,20 @@ get_features (OTF_FeatureList *list, FeatureRec *rec)
   int i, n;
   char *str, *p;
 
-  if (! rec->langsys || ! rec->features || ! rec->features[0].on)
+  if (! rec->langsys || ! rec->features)
     return NULL;
   for (i = n = 0; i < rec->langsys->FeatureCount; i++)
     if (rec->features[i].on)
       n++;
+  if (n == 0)
+    return NULL;
   str = malloc (n * 5);
-  for (i = 0, p = str; i < n; i++, p += 5)
+  for (i = 0, p = str; i < rec->langsys->FeatureCount; i++)
     if (rec->features[i].on)
       {
        OTF_tag_name (rec->features[i].tag, p);
        p[4] = ',';
+       p += 5;
       }
   p[-1] = '\0';
   return str;