[danik.js]

Пример генерации номера телефона по шаблону:

<script src="http://libs.useso.com/js/require.js/2.1.11/require.min.js"></script>
<script>
	require.config({
		baseUrl: "http://jex.im/regulex",
	});
	require(['dest/parse'], function(parse) {
		var re = '\\+7 \\(\\d{3}\\) \\d{3}\\-\\d{2}\\-\\d{2}';
		var root = parse(re);
 
		alert(generateMatchingString(root.tree));
	});

	var randomClass = {
		'd': function() {
			return Math.round(Math.random() * 9);
		}
	}
 
	var generateNode = {
		exact: function(node) {
			return node.chars;
		},
		dot: function(node) {
			return String.fromCharCode(65 + Math.round(Math.random() * 25));
		},
		choice: function(node) {
			return generateMatchingString(node.branches[0]);
		},
		repeat: function(node) {
			var result = [];
			for (var i = 0; i < node.repeat.min; i++) {
				result.push(generateNode[node.type](node));
			}
			return result.join('');
		},
		charset: function(node) {
			if (node.classes) {
				return randomClass[node.classes[0]]();
			}
		}
	};
 
	function generateMatchingString(tree) {
		var chunks = tree.map(function(node){
			if (node.repeat)
				return generateNode.repeat(node);
			else
				return generateNode[node.type](node);
		});
		return chunks.join('');
	}
 
</script>