Allow digits in language system tags

7 years ago · 80c1b01f05
parent 85bb89a88b
commit 80c1b01f05
1 changed files with 1 additions and 1 deletions
--- a/src/hb-ot-tag.cc
+++ b/src/hb-ot-tag.cc
@ -920,7 +920,7 @@ hb_ot_tag_from_language (hb_language_t language)
    char tag[4];
    int i;
    s += 6;
-    for (i = 0; i < 4 && ISALPHA (s[i]); i++)
+    for (i = 0; i < 4 && ISALNUM (s[i]); i++)
      tag[i] = TOUPPER (s[i]);
    if (i) {
      for (; i < 4; i++)