Fix checking DisplayString hex digits

gapple · Feb 13, 2024 · d7dd628 · d7dd628
1 parent 86f5fea
commit d7dd628
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Parser.php b/src/Parser.php
@@ -299,7 +299,7 @@ private static function parseDisplayString(string &$string): DisplayString
                 $hex = substr($string, 0, 2);
                 $string = substr($string, 2);
 
-                if (!preg_match('/^[0-9a-z]{2}$/', $hex)) {
+                if (!preg_match('/^[0-9a-f]{2}$/', $hex)) {
                     throw new ParseException('Invalid hex values in display string');
                 }