A generic locator class for ActionScript

locator.as

package com.thefifthcircuit.utils {
	public class Locator {
		private static var obj:* = {};
		
		private function shallowGet(query:String):* {
			var parsed:String = "^" + query + "$";
			var matches:Array = [];

			for(var key:String in obj) {
				if(key.match(new RegExp(parsed))) {
					matches.push(obj[key])
				}
			}
			return matches[0];
		}
		private function shallowSet(query:String, value:*):* {
			var parsed:String = "^" + query + "$";
			var matches:Array = [];

			for(var key:String in obj) {
				if(key.match(new RegExp(parsed))) {
					obj[key] = value;

					matches.push(obj[key]);
				}
			}
			if(matches.length < 1) {
				obj[query] = value;
			}
			return value;
		}
		private function deepGet(query:String):* {
			var keys:Array = query.split("/");
			var currentObj:* = obj;

			for(var i = 0; i < keys.length; i++) {
				var val:* = shallowGet(currentObj, keys[i]);

				currentObj = val;

				if(val == null || val == undefined) break;
			}
			var value:* = currentObj;

			return (i < keys.length - 1) ? null : value;
		}
		private function deepSet(query:String, value:*):* {
			var keys:Array = query.split("/");
			var currentObj:* = obj;

			for(var i = 0; i < keys.length; i++) {
				var val:* = shallowGet(currentObj, keys[i]);

				if(val == null || val == undefined) break;
				else currentObj = val;
			}
			var value:* = (i < keys.length - 1) ? null :
				shallowSet(currentObj, keys[keys.length - 1], value);

			return value;
		}
		public static function $(query:String, value:* = undefined):* {
			return(value == undefined ? deepGet(obj, query) : deepSet(obj, query, value));
		}
	}
}

// Locator.$ can take 1 or 2 arguments (getter ver. or the setter ver.)
//   * path (a string containing "/"-delimited tokens, each of which can be a
//     string or regexp)
//   * object (any object to place at the particular path)
//
// Locator.$("foo", {});
// Locator.$("foo/new", {});
// Locator.$("foo/new/hello-whee", "bar");
// trace(Locator.$("foo/.*/hello-whee"));