--- old/make/data/characterdata/CharacterData01.java.template	2018-12-11 06:23:40.241702391 -0600
+++ new/make/data/characterdata/CharacterData01.java.template	2018-12-11 06:23:39.641722191 -0600
@@ -460,6 +460,21 @@
         return retval;
     }
 
+    boolean isDigit(int ch) {
+        int props = getProperties(ch);
+        return (props & $$maskType) == Character.DECIMAL_DIGIT_NUMBER;
+    }
+
+    boolean isLowerCase(int ch) {
+        int props = getProperties(ch);
+        return (props & $$maskType) == Character.LOWERCASE_LETTER;
+    }
+
+    boolean isUpperCase(int ch) {
+        int props = getProperties(ch);
+        return (props & $$maskType) == Character.UPPERCASE_LETTER;
+    }
+
     boolean isWhitespace(int ch) {
         int props = getProperties(ch);
         return ((props & $$maskIdentifierInfo) == $$valueJavaWhitespace);