Index: trunk/src/org/openstreetmap/josm/gui/mappaint/mapcss/Functions.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/mappaint/mapcss/Functions.java	(revision 15278)
+++ trunk/src/org/openstreetmap/josm/gui/mappaint/mapcss/Functions.java	(revision 15279)
@@ -495,4 +495,26 @@
 
     /**
+     * Sort an array of strings
+     * @param sortables The array to sort
+     * @return The sorted list
+     * @since 15279
+     */
+    public static List<String> sort(String... sortables) {
+        Arrays.parallelSort(sortables);
+        return Arrays.asList(sortables);
+    }
+
+    /**
+     * Sort a list of strings
+     * @param sortables The list to sort
+     * @return The sorted list
+     * @since 15279
+     */
+    public static List<String> sort_list(List<String> sortables) {
+        Collections.sort(sortables);
+        return sortables;
+    }
+
+    /**
      * Returns the role of current object in parent relation, or role of child if current object is a relation.
      * @param env the environment