diff --git a/src/testdir/test64.ok b/src/testdir/test64.ok
index 2df568d..733ad87 100644
--- a/src/testdir/test64.ok
+++ b/src/testdir/test64.ok
@@ -650,30 +650,72 @@
 OK 0 - .a\%$
 OK 1 - .a\%$
 OK 2 - .a\%$
-OK 0 - [0-9]
-OK 1 - [0-9]
-OK 2 - [0-9]
-OK 0 - [^0-9]
-OK 1 - [^0-9]
-OK 2 - [^0-9]
-OK 0 - [0-9a-fA-F]*
-OK 1 - [0-9a-fA-F]*
-OK 2 - [0-9a-fA-F]*
+OK 0 - [0-7]\+
+OK 1 - [0-7]\+
+OK 2 - [0-7]\+
+OK 0 - [^0-7]\+
+OK 1 - [^0-7]\+
+OK 2 - [^0-7]\+
+OK 0 - [0-9]\+
+OK 1 - [0-9]\+
+OK 2 - [0-9]\+
+OK 0 - [^0-9]\+
+OK 1 - [^0-9]\+
+OK 2 - [^0-9]\+
+OK 0 - [0-9a-fA-F]\+
+OK 1 - [0-9a-fA-F]\+
+OK 2 - [0-9a-fA-F]\+
 OK 0 - [^0-9A-Fa-f]\+
 OK 1 - [^0-9A-Fa-f]\+
 OK 2 - [^0-9A-Fa-f]\+
 OK 0 - [a-z_A-Z0-9]\+
 OK 1 - [a-z_A-Z0-9]\+
 OK 2 - [a-z_A-Z0-9]\+
-OK 0 - [a-z]
-OK 1 - [a-z]
-OK 2 - [a-z]
-OK 0 - [a-zA-Z]
-OK 1 - [a-zA-Z]
-OK 2 - [a-zA-Z]
-OK 0 - [A-Z]
-OK 1 - [A-Z]
-OK 2 - [A-Z]
+OK 0 - [^a-z_A-Z0-9]\+
+OK 1 - [^a-z_A-Z0-9]\+
+OK 2 - [^a-z_A-Z0-9]\+
+OK 0 - [a-z_A-Z]\+
+OK 1 - [a-z_A-Z]\+
+OK 2 - [a-z_A-Z]\+
+OK 0 - [^a-z_A-Z]\+
+OK 1 - [^a-z_A-Z]\+
+OK 2 - [^a-z_A-Z]\+
+OK 0 - [a-z]\+
+OK 1 - [a-z]\+
+OK 2 - [a-z]\+
+OK 0 - [a-z]\+
+OK 1 - [a-z]\+
+OK 2 - [a-z]\+
+OK 0 - [^a-z]\+
+OK 1 - [^a-z]\+
+OK 2 - [^a-z]\+
+OK 0 - [^a-z]\+
+OK 1 - [^a-z]\+
+OK 2 - [^a-z]\+
+OK 0 - [a-zA-Z]\+
+OK 1 - [a-zA-Z]\+
+OK 2 - [a-zA-Z]\+
+OK 0 - [^a-zA-Z]\+
+OK 1 - [^a-zA-Z]\+
+OK 2 - [^a-zA-Z]\+
+OK 0 - [A-Z]\+
+OK 1 - [A-Z]\+
+OK 2 - [A-Z]\+
+OK 0 - [^A-Z]\+
+OK 1 - [^A-Z]\+
+OK 2 - [^A-Z]\+
+OK 0 - [a-z]\+\c
+OK 1 - [a-z]\+\c
+OK 2 - [a-z]\+\c
+OK 0 - [A-Z]\+\c
+OK 1 - [A-Z]\+\c
+OK 2 - [A-Z]\+\c
+OK 0 - \c[^a-z]\+
+OK 1 - \c[^a-z]\+
+OK 2 - \c[^a-z]\+
+OK 0 - \c[^A-Z]\+
+OK 1 - \c[^A-Z]\+
+OK 2 - \c[^A-Z]\+
 OK 0 - \C[^A-Z]\+
 OK 1 - \C[^A-Z]\+
 OK 2 - \C[^A-Z]\+