+ /**
+ * eval:var:escape
+ * eval:var:unescape
+ * eval:var:replace
+ */
+
+ /**
+ * Helpers
+ */
+
+ var escape = function (html, encode) {
+ return html
+ .replace(!encode ? /&(?!#?\w+;)/g : /&/g, '&')
+ .replace(/</g, '<')
+ .replace(/>/g, '>')
+ .replace(/"/g, '"')
+ .replace(/'/g, ''');
+ }
+
+ var unescape = function (html) {
+ // explicitly match decimal, hex, and named HTML entities
+ return html.replace(/&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/g, function(_, n) {
+ n = n.toLowerCase();
+ if (n === 'colon') { return ':'; }
+ if (n.charAt(0) === '#') {
+ return n.charAt(1) === 'x'
+ ? String.fromCharCode(parseInt(n.substring(2), 16))
+ : String.fromCharCode(+n.substring(1));
+ }
+ return '';
+ });
+ }
+
+ var replace = function (regex, opt) {
+ regex = regex.source;
+ opt = opt || '';
+ return function self(name, val) {
+ if (!name) { return new RegExp(regex, opt); }
+ val = val.source || val;
+ val = val.replace(/(^|[^\[])\^/g, '$1');
+ regex = regex.replace(name, val);
+ return self;
+ };
+ }
+
+
+ /**
+ * eval:var:noop
+ */
+ var noop = function () {}
+ noop.exec = noop;
+
+ /**
+ * eval:var:merge
+ */
+ var merge = function (obj) {
+ var i = 1
+ , target
+ , key;
+
+ for (; i < arguments.length; i++) {
+ target = arguments[i];
+ for (key in target) {
+ if (Object.prototype.hasOwnProperty.call(target, key)) {
+ obj[key] = target[key];
+ }
+ }
+ }
+
+ return obj;
+ }
+
+