* Added automatic detection of substitution parameters in messages, removing the need to provide format functions (http://plugins.jquery.com/node/11195)

changelog.txt

@@ -14,6 +14,7 @@
 * Fixed default message for digits (http://plugins.jquery.com/node/9853)
 * Fixed issue with cached remote message (http://plugins.jquery.com/node/11029 and http://plugins.jquery.com/node/9351)
 * Fixed a missing semicolon in additional-methods.js (http://plugins.jquery.com/node/9233)
+* Added automatic detection of substitution parameters in messages, removing the need to provide format functions (http://plugins.jquery.com/node/11195)
 
 1.5.5
 ---

jquery.validate.js

@@ -558,13 +558,18 @@ $.extend($.validator, {
 		},
 		
 		formatAndAdd: function( element, rule ) {
-			var message = this.defaultMessage( element, rule.method );
-			if ( typeof message == "function" ) 
+			var message = this.defaultMessage( element, rule.method ),
+				theregex = /\$?\{(\d+)\}/g;
+			if ( typeof message == "function" ) {
 				message = message.call(this, rule.parameters, element);
+			} else if (theregex.test(message)) {
+				message = jQuery.format(message.replace(theregex, '{$1}'), rule.parameters);
+			}			
 			this.errorList.push({
 				message: message,
 				element: element
 			});
+			
 			this.errorMap[element.name] = message;
 			this.submitted[element.name] = message;
 		},

test/test.js

@@ -419,6 +419,25 @@ test("formatAndAdd2", function() {
 	equals( "element bar is not valid", v.errorList[0].message );
 });
 
+test("formatAndAdd, auto detect substitution string", function() {
+	var v = $("#testForm1clean").validate({
+		rules: {
+			firstname: {
+				required: true,
+				rangelength: [5, 10]
+			}
+		},
+		messages: {
+			firstname: {
+				rangelength: "at least ${0}, up to {1}"
+			}
+		}
+	});
+	$("#firstnamec").val("abc");
+	v.form();
+	equals( "at least 5, up to 10", v.errorList[0].message );
+})
+
 test("error containers, simple", function() {
 	expect(14);
 	var container = $("#simplecontainer");