DevTools: Bump Gonzales-pe to 4.0.3

third_party/WebKit/Source/devtools/front_end/gonzales/gonzales-scss.js

 (function webpackUniversalModuleDefinition(root, factory) {
         if(typeof exports === 'object' && typeof module === 'object')
                 module.exports = factory();
         else if(typeof define === 'function' && define.amd)
                 define([], factory);
         else if(typeof exports === 'object')
                 exports["gonzales"] = factory();
         else
                 root["gonzales"] = factory();
 })(this, function() {
@@ skipping 42 matching lines @@
 /******/ ([
 /* 0 */
 /***/ function(module, exports, __webpack_require__) {
 
         'use strict';
 
         var Node = __webpack_require__(1);
         var parse = __webpack_require__(7);
 
         module.exports = {
-          createNode: function (options) {
+          createNode: function createNode(options) {
             return new Node(options);
           },
           parse: parse
         };
 
 /***/ },
 /* 1 */
 /***/ function(module, exports, __webpack_require__) {
 
         'use strict';
 
         /**
          * @param {string} type
          * @param {array|string} content
          * @param {number} line
          * @param {number} column
          * @constructor
          */
 
-        var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
+        var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-        function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
+        function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
-        var Node = (function () {
+        var Node = function () {
           function Node(options) {
             _classCallCheck(this, Node);
 
             this.type = options.type;
             this.content = options.content;
             this.syntax = options.syntax;
 
             if (options.start) this.start = options.start;
             if (options.end) this.end = options.end;
           }
 
           /**
            * @param {String} type Node type
            * @return {Boolean} Whether there is a child node of given type
            */
 
+
           Node.prototype.contains = function contains(type) {
             return this.content.some(function (node) {
               return node.type === type;
             });
           };
 
           /**
            * @param {String} type Node type
            * @param {Function} callback Function to call for every found node
            */
 
+
           Node.prototype.eachFor = function eachFor(type, callback) {
             if (!Array.isArray(this.content)) return;
 
             if (typeof type !== 'string') {
               callback = type;
               type = null;
             }
 
             var l = this.content.length;
             var breakLoop;
 
             for (var i = l; i--;) {
               if (breakLoop === null) break;
 
               if (!type || this.content[i] && this.content[i].type === type) breakLoop = callback(this.content[i], i, this);
             }
 
             if (breakLoop === null) return null;
           };
 
           /**
            * @param {String} type
            * @return {?Node} First child node or `null` if nothing's been found.
            */
 
+
           Node.prototype.first = function first(type) {
             if (!Array.isArray(this.content)) return null;
 
             if (!type) return this.content[0];
 
             var i = 0;
             var l = this.content.length;
 
             for (; i < l; i++) {
               if (this.content[i].type === type) return this.content[i];
             }
 
             return null;
           };
 
           /**
            * @param {String} type Node type
            * @param {Function} callback Function to call for every found node
            */
 
+
           Node.prototype.forEach = function forEach(type, callback) {
             if (!Array.isArray(this.content)) return;
 
             if (typeof type !== 'string') {
               callback = type;
               type = null;
             }
 
             var i = 0;
             var l = this.content.length;
             var breakLoop;
 
             for (; i < l; i++) {
               if (breakLoop === null) break;
 
               if (!type || this.content[i] && this.content[i].type === type) breakLoop = callback(this.content[i], i, this);
             }
 
             if (breakLoop === null) return null;
           };
 
           /**
            * @param {Number} index
            * @return {?Node}
            */
 
+
           Node.prototype.get = function get(index) {
             if (!Array.isArray(this.content)) return null;
 
             var node = this.content[index];
             return node ? node : null;
           };
 
           /**
            * @param {Number} index
            * @param {Node} node
            */
 
+
           Node.prototype.insert = function insert(index, node) {
             if (!Array.isArray(this.content)) return;
 
             this.content.splice(index, 0, node);
           };
 
           /**
            * @param {String} type
            * @return {Boolean} Whether the node is of given type
            */
 
+
           Node.prototype.is = function is(type) {
             return this.type === type;
           };
 
           /**
            * @param {String} type
            * @return {?Node} Last child node or `null` if nothing's been found.
            */
 
+
           Node.prototype.last = function last(type) {
             if (!Array.isArray(this.content)) return null;
 
-            var i = this.content.length - 1;
-            if (!type) return this.content[i];
+            var i = this.content.length;
+            if (!type) return this.content[i - 1];
 
-            for (;; i--) {
+            for (; i--;) {
               if (this.content[i].type === type) return this.content[i];
             }
 
             return null;
           };
 
           /**
            * Number of child nodes.
            * @type {number}
            */
 
+
           /**
            * @param {Number} index
            * @return {Node}
            */
-
           Node.prototype.removeChild = function removeChild(index) {
             if (!Array.isArray(this.content)) return;
 
             var removedChild = this.content.splice(index, 1);
 
             return removedChild;
           };
 
           Node.prototype.toJson = function toJson() {
             return JSON.stringify(this, false, 2);
           };
 
           Node.prototype.toString = function toString() {
-            var stringify = undefined;
+            var stringify = void 0;
 
             try {
               stringify = __webpack_require__(2)("./" + this.syntax + '/stringify');
             } catch (e) {
               var message = 'Syntax "' + this.syntax + '" is not supported yet, sorry';
               return console.error(message);
             }
 
             return stringify(this);
           };
 
           /**
            * @param {Function} callback
            */
 
+
           Node.prototype.traverse = function traverse(callback, index) {
-            var level = arguments.length <= 2 || arguments[2] === undefined ? 0 : arguments[2];
-            var parent = arguments.length <= 3 || arguments[3] === undefined ? null : arguments[3];
+            var level = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+            var parent = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
 
             var breakLoop;
             var x;
 
             level++;
 
             callback(this, index, parent, level);
 
             if (!Array.isArray(this.content)) return;
 
@@ skipping 18 matching lines @@
           };
 
           Node.prototype.traverseByTypes = function traverseByTypes(types, callback) {
             this.traverse(function (node) {
               if (types.indexOf(node.type) !== -1) callback.apply(node, arguments);
             });
           };
 
           _createClass(Node, [{
             key: 'length',
-            get: function () {
+            get: function get() {
               if (!Array.isArray(this.content)) return 0;
               return this.content.length;
             }
           }]);
 
           return Node;
-        })();
+        }();
 
         module.exports = Node;
 
 /***/ },
 /* 2 */
 /***/ function(module, exports, __webpack_require__) {
 
         var map = {
                 "./css/stringify": 3,
                 "./less/stringify": 4,
@@ skipping 11 matching lines @@
         };
         webpackContext.resolve = webpackContextResolve;
         module.exports = webpackContext;
         webpackContext.id = 2;
 
 
 /***/ },
 /* 3 */
 /***/ function(module, exports) {
 
-        // jscs:disable maximumLineLength
-
         'use strict';
 
         module.exports = function stringify(tree) {
           // TODO: Better error message
           if (!tree) throw new Error('We need tree to translate');
 
           function _t(tree) {
             var type = tree.type;
             if (_unique[type]) return _unique[type](tree);
             if (typeof tree.content === 'string') return tree.content;
             if (Array.isArray(tree.content)) return _composite(tree.content);
             return '';
           }
 
           function _composite(t, i) {
             if (!t) return '';
 
             var s = '';
             i = i || 0;
-            for (; i < t.length; i++) s += _t(t[i]);
-            return s;
+            for (; i < t.length; i++) {
+              s += _t(t[i]);
+            }return s;
           }
 
           var _unique = {
-            'arguments': function (t) {
+            'arguments': function _arguments(t) {
               return '(' + _composite(t.content) + ')';
             },
-            'atkeyword': function (t) {
+            'atkeyword': function atkeyword(t) {
               return '@' + _composite(t.content);
             },
-            'attributeSelector': function (t) {
+            'attributeSelector': function attributeSelector(t) {
               return '[' + _composite(t.content) + ']';
             },
-            'block': function (t) {
+            'block': function block(t) {
               return '{' + _composite(t.content) + '}';
             },
-            'brackets': function (t) {
+            'brackets': function brackets(t) {
               return '[' + _composite(t.content) + ']';
             },
-            'class': function (t) {
+            'class': function _class(t) {
               return '.' + _composite(t.content);
             },
-            'color': function (t) {
+            'color': function color(t) {
               return '#' + t.content;
             },
-            'expression': function (t) {
+            'expression': function expression(t) {
               return 'expression(' + t.content + ')';
             },
-            'id': function (t) {
+            'id': function id(t) {
               return '#' + _composite(t.content);
             },
-            'multilineComment': function (t) {
+            'multilineComment': function multilineComment(t) {
               return '/*' + t.content + '*/';
             },
-            'nthSelector': function (t) {
+            'nthSelector': function nthSelector(t) {
               return ':' + _t(t.content[0]) + '(' + _composite(t.content.slice(1)) + ')';
             },
-            'parentheses': function (t) {
+            'parentheses': function parentheses(t) {
               return '(' + _composite(t.content) + ')';
             },
-            'percentage': function (t) {
+            'percentage': function percentage(t) {
               return _composite(t.content) + '%';
             },
-            'pseudoClass': function (t) {
+            'pseudoClass': function pseudoClass(t) {
               return ':' + _composite(t.content);
             },
-            'pseudoElement': function (t) {
+            'pseudoElement': function pseudoElement(t) {
               return '::' + _composite(t.content);
             },
-            'uri': function (t) {
+            'universalSelector': function universalSelector(t) {
+              return _composite(t.content) + '*';
+            },
+            'uri': function uri(t) {
               return 'url(' + _composite(t.content) + ')';
             }
           };
 
           return _t(tree);
         };
 
 /***/ },
 /* 4 */
 /***/ function(module, exports) {
 
-        // jscs:disable maximumLineLength
-
         'use strict';
 
         module.exports = function stringify(tree) {
           // TODO: Better error message
           if (!tree) throw new Error('We need tree to translate');
 
           function _t(tree) {
             var type = tree.type;
             if (_unique[type]) return _unique[type](tree);
             if (typeof tree.content === 'string') return tree.content;
             if (Array.isArray(tree.content)) return _composite(tree.content);
             return '';
           }
 
           function _composite(t, i) {
             if (!t) return '';
 
             var s = '';
             i = i || 0;
-            for (; i < t.length; i++) s += _t(t[i]);
-            return s;
+            for (; i < t.length; i++) {
+              s += _t(t[i]);
+            }return s;
           }
 
           var _unique = {
-            'arguments': function (t) {
+            'arguments': function _arguments(t) {
               return '(' + _composite(t.content) + ')';
             },
-            'atkeyword': function (t) {
+            'atkeyword': function atkeyword(t) {
               return '@' + _composite(t.content);
             },
-            'attributeSelector': function (t) {
+            'attributeSelector': function attributeSelector(t) {
               return '[' + _composite(t.content) + ']';
             },
-            'block': function (t) {
+            'block': function block(t) {
               return '{' + _composite(t.content) + '}';
             },
-            'brackets': function (t) {
+            'brackets': function brackets(t) {
               return '[' + _composite(t.content) + ']';
             },
-            'class': function (t) {
+            'class': function _class(t) {
               return '.' + _composite(t.content);
             },
-            'color': function (t) {
+            'color': function color(t) {
               return '#' + t.content;
             },
-            'escapedString': function (t) {
+            'escapedString': function escapedString(t) {
               return '~' + t.content;
             },
-            'expression': function (t) {
+            'expression': function expression(t) {
               return 'expression(' + t.content + ')';
             },
-            'id': function (t) {
+            'id': function id(t) {
               return '#' + _composite(t.content);
             },
-            'interpolatedVariable': function (t) {
+            'interpolatedVariable': function interpolatedVariable(t) {
               return '@{' + _composite(t.content) + '}';
             },
-            'multilineComment': function (t) {
+            'multilineComment': function multilineComment(t) {
               return '/*' + t.content + '*/';
             },
-            'nthSelector': function (t) {
+            'nthSelector': function nthSelector(t) {
               return ':' + _t(t.content[0]) + '(' + _composite(t.content.slice(1)) + ')';
             },
-            'parentheses': function (t) {
+            'parentheses': function parentheses(t) {
               return '(' + _composite(t.content) + ')';
             },
-            'percentage': function (t) {
+            'percentage': function percentage(t) {
               return _composite(t.content) + '%';
             },
-            'pseudoClass': function (t) {
+            'pseudoClass': function pseudoClass(t) {
               return ':' + _composite(t.content);
             },
-            'pseudoElement': function (t) {
+            'pseudoElement': function pseudoElement(t) {
               return '::' + _composite(t.content);
             },
-            'singlelineComment': function (t) {
+            'singlelineComment': function singlelineComment(t) {
               return '/' + '/' + t.content;
             },
-            'uri': function (t) {
+            'universalSelector': function universalSelector(t) {
+              return _composite(t.content) + '*';
+            },
+            'uri': function uri(t) {
               return 'url(' + _composite(t.content) + ')';
             },
-            'variable': function (t) {
+            'variable': function variable(t) {
               return '@' + _composite(t.content);
             },
-            'variablesList': function (t) {
+            'variablesList': function variablesList(t) {
               return _composite(t.content) + '...';
             }
           };
 
           return _t(tree);
         };
 
 /***/ },
 /* 5 */
 /***/ function(module, exports) {
 
-        // jscs:disable maximumLineLength
-
         'use strict';
 
         module.exports = function stringify(tree) {
           // TODO: Better error message
           if (!tree) throw new Error('We need tree to translate');
 
           function _t(tree) {
             var type = tree.type;
             if (_unique[type]) return _unique[type](tree);
             if (typeof tree.content === 'string') return tree.content;
             if (Array.isArray(tree.content)) return _composite(tree.content);
             return '';
           }
 
           function _composite(t, i) {
             if (!t) return '';
 
             var s = '';
             i = i || 0;
-            for (; i < t.length; i++) s += _t(t[i]);
-            return s;
+            for (; i < t.length; i++) {
+              s += _t(t[i]);
+            }return s;
           }
 
           var _unique = {
-            'arguments': function (t) {
+            'arguments': function _arguments(t) {
               return '(' + _composite(t.content) + ')';
             },
-            'atkeyword': function (t) {
+            'atkeyword': function atkeyword(t) {
               return '@' + _composite(t.content);
             },
-            'attributeSelector': function (t) {
+            'attributeSelector': function attributeSelector(t) {
               return '[' + _composite(t.content) + ']';
             },
-            'block': function (t) {
+            'block': function block(t) {
               return _composite(t.content);
             },
-            'brackets': function (t) {
+            'brackets': function brackets(t) {
               return '[' + _composite(t.content) + ']';
             },
-            'class': function (t) {
+            'class': function _class(t) {
               return '.' + _composite(t.content);
             },
-            'color': function (t) {
+            'color': function color(t) {
               return '#' + t.content;
             },
-            'expression': function (t) {
+            'expression': function expression(t) {
               return 'expression(' + t.content + ')';
             },
-            'id': function (t) {
+            'id': function id(t) {
               return '#' + _composite(t.content);
             },
-            'interpolation': function (t) {
+            'interpolation': function interpolation(t) {
               return '#{' + _composite(t.content) + '}';
             },
-            'multilineComment': function (t) {
-              return '/*' + t.content;
+            'multilineComment': function multilineComment(t) {
+              var lines = t.content.split('\n');
+              var close = '';
+
+              if (lines.length > 1) {
+                var lastLine = lines[lines.length - 1];
+                if (lastLine.length < t.end.column) {
+                  close = '*/';
+                }
+              } else if (t.content.length + 4 === t.end.column - t.start.column + 1) {
+                close = '*/';
+              }
+
+              return '/*' + t.content + close;
             },
-            'nthSelector': function (t) {
+            'nthSelector': function nthSelector(t) {
               return ':' + _t(t.content[0]) + '(' + _composite(t.content.slice(1)) + ')';
             },
-            'parentheses': function (t) {
+            'parentheses': function parentheses(t) {
               return '(' + _composite(t.content) + ')';
             },
-            'percentage': function (t) {
+            'percentage': function percentage(t) {
               return _composite(t.content) + '%';
             },
-            'placeholder': function (t) {
+            'placeholder': function placeholder(t) {
               return '%' + _composite(t.content);
             },
-            'pseudoClass': function (t) {
+            'pseudoClass': function pseudoClass(t) {
               return ':' + _composite(t.content);
             },
-            'pseudoElement': function (t) {
+            'pseudoElement': function pseudoElement(t) {
               return '::' + _composite(t.content);
             },
-            'singlelineComment': function (t) {
+            'singlelineComment': function singlelineComment(t) {
               return '/' + '/' + t.content;
             },
-            'uri': function (t) {
+            'universalSelector': function universalSelector(t) {
+              return _composite(t.content) + '*';
+            },
+            'uri': function uri(t) {
               return 'url(' + _composite(t.content) + ')';
             },
-            'variable': function (t) {
+            'variable': function variable(t) {
               return '$' + _composite(t.content);
             },
-            'variablesList': function (t) {
+            'variablesList': function variablesList(t) {
               return _composite(t.content) + '...';
             }
           };
 
           return _t(tree);
         };
 
 /***/ },
 /* 6 */
 /***/ function(module, exports) {
 
-        // jscs:disable maximumLineLength
-
         'use strict';
 
         module.exports = function stringify(tree) {
           // TODO: Better error message
           if (!tree) throw new Error('We need tree to translate');
 
           function _t(tree) {
             var type = tree.type;
             if (_unique[type]) return _unique[type](tree);
             if (typeof tree.content === 'string') return tree.content;
             if (Array.isArray(tree.content)) return _composite(tree.content);
             return '';
           }
 
           function _composite(t, i) {
             if (!t) return '';
 
             var s = '';
             i = i || 0;
-            for (; i < t.length; i++) s += _t(t[i]);
-            return s;
+            for (; i < t.length; i++) {
+              s += _t(t[i]);
+            }return s;
           }
 
           var _unique = {
-            'arguments': function (t) {
+            'arguments': function _arguments(t) {
               return '(' + _composite(t.content) + ')';
             },
-            'atkeyword': function (t) {
+            'atkeyword': function atkeyword(t) {
               return '@' + _composite(t.content);
             },
-            'attributeSelector': function (t) {
+            'attributeSelector': function attributeSelector(t) {
               return '[' + _composite(t.content) + ']';
             },
-            'block': function (t) {
+            'block': function block(t) {
               return '{' + _composite(t.content) + '}';
             },
-            'brackets': function (t) {
+            'brackets': function brackets(t) {
               return '[' + _composite(t.content) + ']';
             },
-            'class': function (t) {
+            'class': function _class(t) {
               return '.' + _composite(t.content);
             },
-            'color': function (t) {
+            'color': function color(t) {
               return '#' + t.content;
             },
-            'expression': function (t) {
+            'expression': function expression(t) {
               return 'expression(' + t.content + ')';
             },
-            'id': function (t) {
+            'id': function id(t) {
               return '#' + _composite(t.content);
             },
-            'interpolation': function (t) {
+            'interpolation': function interpolation(t) {
               return '#{' + _composite(t.content) + '}';
             },
-            'multilineComment': function (t) {
+            'multilineComment': function multilineComment(t) {
               return '/*' + t.content + '*/';
             },
-            'nthSelector': function (t) {
+            'nthSelector': function nthSelector(t) {
               return ':' + _t(t.content[0]) + '(' + _composite(t.content.slice(1)) + ')';
             },
-            'parentheses': function (t) {
+            'parentheses': function parentheses(t) {
               return '(' + _composite(t.content) + ')';
             },
-            'percentage': function (t) {
+            'percentage': function percentage(t) {
               return _composite(t.content) + '%';
             },
-            'placeholder': function (t) {
+            'placeholder': function placeholder(t) {
               return '%' + _composite(t.content);
             },
-            'pseudoClass': function (t) {
+            'pseudoClass': function pseudoClass(t) {
               return ':' + _composite(t.content);
             },
-            'pseudoElement': function (t) {
+            'pseudoElement': function pseudoElement(t) {
               return '::' + _composite(t.content);
             },
-            'singlelineComment': function (t) {
+            'singlelineComment': function singlelineComment(t) {
               return '/' + '/' + t.content;
             },
-            'uri': function (t) {
+            'universalSelector': function universalSelector(t) {
+              return _composite(t.content) + '*';
+            },
+            'uri': function uri(t) {
               return 'url(' + _composite(t.content) + ')';
             },
-            'variable': function (t) {
+            'variable': function variable(t) {
               return '$' + _composite(t.content);
             },
-            'variablesList': function (t) {
+            'variablesList': function variablesList(t) {
               return _composite(t.content) + '...';
             }
           };
 
           return _t(tree);
         };
 
 /***/ },
 /* 7 */
 /***/ function(module, exports, __webpack_require__) {
 
         'use strict';
 
         var ParsingError = __webpack_require__(8);
         var syntaxes = __webpack_require__(10);
 
         var isInteger = Number.isInteger || function (value) {
           return typeof value === 'number' && Math.floor(value) === value;
         };
 
         /**
          * @param {String} css
          * @param {Object} options
          * @return {Object} AST
          */
         function parser(css, options) {
-          if (typeof css !== 'string') throw new Error('Please, pass a string to parse');else if (!css) return __webpack_require__(16)();
+          if (typeof css !== 'string') throw new Error('Please, pass a string to parse');else if (!css) return __webpack_require__(21)();
 
           var syntax = options && options.syntax || 'css';
           var context = options && options.context || 'stylesheet';
           var tabSize = options && options.tabSize;
           if (!isInteger(tabSize) || tabSize < 1) tabSize = 1;
 
-          var syntaxParser = undefined;
-          if (syntaxes[syntax]) {
-            syntaxParser = syntaxes[syntax];
-          } else {
-            syntaxParser = syntaxes;
-          }
+          var syntaxParser = syntaxes[syntax];
 
           if (!syntaxParser) {
             var message = 'Syntax "' + syntax + '" is not supported yet, sorry';
             return console.error(message);
           }
 
           var getTokens = syntaxParser.tokenizer;
           var mark = syntaxParser.mark;
           var parse = syntaxParser.parse;
 
@@ skipping 24 matching lines @@
         /**
          * @param {Error} e
          * @param {String} css
          */
         function ParsingError(e, css) {
           this.line = e.line;
           this.syntax = e.syntax;
           this.css_ = css;
         }
 
-        ParsingError.prototype = Object.defineProperties({
+        ParsingError.prototype = {
           /**
            * @type {String}
            * @private
            */
           customMessage_: '',
 
           /**
            * @type {Number}
            */
           line: null,
 
           /**
            * @type {String}
            */
           name: 'Parsing error',
 
           /**
            * @type {String}
            */
           syntax: null,
 
           /**
            * @type {String}
            */
           version: parserPackage.version,
 
           /**
+           * @type {String}
+           */
+          get context() {
+            var LINES_AROUND = 2;
+
+            var result = [];
+            var currentLineNumber = this.line;
+            var start = currentLineNumber - 1 - LINES_AROUND;
+            var end = currentLineNumber + LINES_AROUND;
+            var lines = this.css_.split(/\r\n|\r|\n/);
+
+            for (var i = start; i < end; i++) {
+              var line = lines[i];
+              if (!line) continue;
+              var ln = i + 1;
+              var mark = ln === currentLineNumber ? '*' : ' ';
+              result.push(ln + mark + '| ' + line);
+            }
+
+            return result.join('\n');
+          },
+
+          /**
+           * @type {String}
+           */
+          get message() {
+            if (this.customMessage_) {
+              return this.customMessage_;
+            } else {
+              var message = 'Please check validity of the block';
+              if (typeof this.line === 'number') message += ' starting from line #' + this.line;
+              return message;
+            }
+          },
+
+          set message(message) {
+            this.customMessage_ = message;
+          },
+
+          /**
            * @return {String}
            */
-          toString: function () {
+          toString: function toString() {
             return [this.name + ': ' + this.message, '', this.context, '', 'Syntax: ' + this.syntax, 'Gonzales PE version: ' + this.version].join('\n');
           }
-        }, {
-          context: { /**
-                      * @type {String}
-                      */
-
-            get: function () {
-              var LINES_AROUND = 2;
-
-              var result = [];
-              var currentLineNumber = this.line;
-              var start = currentLineNumber - 1 - LINES_AROUND;
-              var end = currentLineNumber + LINES_AROUND;
-              var lines = this.css_.split(/\r\n|\r|\n/);
-
-              for (var i = start; i < end; i++) {
-                var line = lines[i];
-                if (!line) continue;
-                var ln = i + 1;
-                var mark = ln === currentLineNumber ? '*' : ' ';
-                result.push(ln + mark + '| ' + line);
-              }
-
-              return result.join('\n');
-            },
-            configurable: true,
-            enumerable: true
-          },
-          message: {
-
-            /**
-             * @type {String}
-             */
-
-            get: function () {
-              if (this.customMessage_) {
-                return this.customMessage_;
-              } else {
-                var message = 'Please check validity of the block';
-                if (typeof this.line === 'number') message += ' starting from line #' + this.line;
-                return message;
-              }
-            },
-            set: function (message) {
-              this.customMessage_ = message;
-            },
-            configurable: true,
-            enumerable: true
-          }
-        });
+        };
 
         module.exports = ParsingError;
 
 /***/ },
 /* 9 */
 /***/ function(module, exports) {
 
         module.exports = {
                 "name": "gonzales-pe",
                 "description": "Gonzales Preprocessor Edition (fast CSS parser)",
-                "version": "3.3.1",
+                "version": "4.0.3",
                 "homepage": "http://github.com/tonyganch/gonzales-pe",
                 "bugs": "http://github.com/tonyganch/gonzales-pe/issues",
                 "license": "MIT",
                 "author": {
                         "name": "Tony Ganch",
                         "email": "tonyganch+github@gmail.com",
                         "url": "http://tonyganch.com"
                 },
                 "main": "./lib/gonzales",
                 "repository": {
                         "type": "git",
                         "url": "http://github.com/tonyganch/gonzales-pe.git"
                 },
                 "scripts": {
                         "autofix-tests": "bash ./scripts/build.sh && bash ./scripts/autofix-tests.sh",
                         "build": "bash ./scripts/build.sh",
                         "init": "bash ./scripts/init.sh",
+                        "lint": "bash ./scripts/lint.sh",
                         "log": "bash ./scripts/log.sh",
                         "prepublish": "bash ./scripts/prepublish.sh",
                         "postpublish": "bash ./scripts/postpublish.sh",
-                        "test": "bash ./scripts/build.sh && bash ./scripts/test.sh",
+                        "test": "bash ./scripts/test.sh",
                         "watch": "bash ./scripts/watch.sh"
                 },
                 "bin": {
                         "gonzales": "./bin/gonzales.js"
                 },
                 "dependencies": {
                         "minimist": "1.1.x"
                 },
                 "devDependencies": {
-                        "babel-loader": "^5.3.2",
+                        "babel-core": "^6.18.2",
+                        "babel-loader": "^6.2.7",
+                        "babel-plugin-add-module-exports": "^0.2.1",
+                        "babel-preset-es2015": "^6.18.0",
                         "coffee-script": "~1.7.1",
+                        "eslint": "^3.0.0",
                         "jscs": "2.1.0",
                         "jshint": "2.8.0",
                         "json-loader": "^0.5.3",
                         "mocha": "2.2.x",
-                        "webpack": "^1.12.2"
+                        "webpack": "^1.12.2",
+                        "webpack-closure-compiler": "^2.0.2"
                 },
                 "engines": {
                         "node": ">=0.6.0"
                 }
         };
 
 /***/ },
 /* 10 */
 /***/ function(module, exports, __webpack_require__) {
 
         'use strict';
 
-        exports.__esModule = true;
-        exports['default'] = {
-          mark: __webpack_require__(11),
-          parse: __webpack_require__(13),
-          stringify: __webpack_require__(6),
-          tokenizer: __webpack_require__(15)
+        module.exports = {
+          css: __webpack_require__(11),
+          scss: __webpack_require__(17)
         };
-        module.exports = exports['default'];
 
 /***/ },
 /* 11 */
 /***/ function(module, exports, __webpack_require__) {
 
         'use strict';
 
-        var TokenType = __webpack_require__(12);
+        exports.__esModule = true;
+        exports.default = {
+          mark: __webpack_require__(12),
+          parse: __webpack_require__(14),
+          stringify: __webpack_require__(3),
+          tokenizer: __webpack_require__(16)
+        };
+        module.exports = exports['default'];
 
-        module.exports = (function () {
-          /**
-          * Mark whitespaces and comments
-          */
-          function markSC(tokens) {
-            var tokensLength = tokens.length;
-            var ws = -1; // Flag for whitespaces
-            var sc = -1; // Flag for whitespaces and comments
-            var t = undefined; // Current token
+/***/ },
+/* 12 */
+/***/ function(module, exports, __webpack_require__) {
 
-            // For every token in the token list, mark spaces and line breaks
-            // as spaces (set both `ws` and `sc` flags). Mark multiline comments
-            // with `sc` flag.
-            // If there are several spaces or tabs or line breaks or multiline
-            // comments in a row, group them: take the last one's index number
-            // and save it to the first token in the group as a reference:
-            // e.g., `ws_last = 7` for a group of whitespaces or `sc_last = 9`
-            // for a group of whitespaces and comments.
-            for (var i = 0; i < tokensLength; i++) {
-              t = tokens[i];
-              switch (t.type) {
-                case TokenType.Space:
-                case TokenType.Tab:
-                case TokenType.Newline:
-                  t.ws = true;
-                  t.sc = true;
+        'use strict';
 
-                  if (ws === -1) ws = i;
-                  if (sc === -1) sc = i;
+        var TokenType = __webpack_require__(13);
 
-                  break;
-                case TokenType.CommentML:
-                case TokenType.CommentSL:
-                  if (ws !== -1) {
-                    tokens[ws].ws_last = i - 1;
-                    ws = -1;
-                  }
+        /**
+         * Mark whitespaces and comments
+         * @param {Array} tokens
+         */
+        function markSpacesAndComments(tokens) {
+          var tokensLength = tokens.length;
+          var spaces = [-1, -1];
+          var type; // Current token's type
 
-                  t.sc = true;
+          // For every token in the token list, mark spaces and line breaks
+          // as spaces (set both `ws` and `sc` flags). Mark multiline comments
+          // with `sc` flag.
+          // If there are several spaces or tabs or line breaks or multiline
+          // comments in a row, group them: take the last one's index number
+          // and save it to the first token in the group as a reference:
+          // e.g., `ws_last = 7` for a group of whitespaces or `sc_last = 9`
+          // for a group of whitespaces and comments.
+          for (var i = 0; i < tokensLength; i++) {
+            type = tokens[i].type;
 
-                  break;
-                default:
-                  if (ws !== -1) {
-                    tokens[ws].ws_last = i - 1;
-                    ws = -1;
-                  }
-
-                  if (sc !== -1) {
-                    tokens[sc].sc_last = i - 1;
-                    sc = -1;
-                  }
-              }
+            if (type === TokenType.Space || type === TokenType.Tab || type === TokenType.Newline) {
+              markSpace(tokens, i, spaces);
+            } else if (type === TokenType.CommentML) {
+              markComment(tokens, i, spaces);
+            } else {
+              markEndOfSpacesAndComments(tokens, i, spaces);
             }
-
-            if (ws !== -1) tokens[ws].ws_last = i - 1;
-            if (sc !== -1) tokens[sc].sc_last = i - 1;
           }
 
-          /**
-          * Pair brackets
-          */
-          function markBrackets(tokens) {
-            var tokensLength = tokens.length;
-            var ps = []; // Parentheses
-            var sbs = []; // Square brackets
-            var cbs = []; // Curly brackets
-            var t = undefined; // Current token
+          markEndOfSpacesAndComments(tokens, i, spaces);
+        }
 
-            // For every token in the token list, if we meet an opening (left)
-            // bracket, push its index number to a corresponding array.
-            // If we then meet a closing (right) bracket, look at the corresponding
-            // array. If there are any elements (records about previously met
-            // left brackets), take a token of the last left bracket (take
-            // the last index number from the array and find a token with
-            // this index number) and save right bracket's index as a reference:
-            for (var i = 0; i < tokensLength; i++) {
-              t = tokens[i];
-              switch (t.type) {
-                case TokenType.LeftParenthesis:
-                  ps.push(i);
-                  break;
-                case TokenType.RightParenthesis:
-                  if (ps.length) {
-                    t.left = ps.pop();
-                    tokens[t.left].right = i;
-                  }
-                  break;
-                case TokenType.LeftSquareBracket:
-                  sbs.push(i);
-                  break;
-                case TokenType.RightSquareBracket:
-                  if (sbs.length) {
-                    t.left = sbs.pop();
-                    tokens[t.left].right = i;
-                  }
-                  break;
-                case TokenType.LeftCurlyBracket:
-                  cbs.push(i);
-                  break;
-                case TokenType.RightCurlyBracket:
-                  if (cbs.length) {
-                    t.left = cbs.pop();
-                    tokens[t.left].right = i;
-                  }
-                  break;
+        function markSpace(tokens, i, spaces) {
+          var token = tokens[i];
+          token.ws = true;
+          token.sc = true;
+
+          if (spaces[0] === -1) spaces[0] = i;
+          if (spaces[1] === -1) spaces[1] = i;
+        }
+
+        function markComment(tokens, i, spaces) {
+          var ws = spaces[0];
+          tokens[i].sc = true;
+
+          if (ws !== -1) {
+            tokens[ws].ws_last = i - 1;
+            spaces[0] = -1;
+          }
+        }
+
+        function markEndOfSpacesAndComments(tokens, i, spaces) {
+          var ws = spaces[0];
+          var sc = spaces[1];
+          if (ws !== -1) {
+            tokens[ws].ws_last = i - 1;
+            spaces[0] = -1;
+          }
+          if (sc !== -1) {
+            tokens[sc].sc_last = i - 1;
+            spaces[1] = -1;
+          }
+        }
+
+        /**
+         * Pair brackets
+         * @param {Array} tokens
+         */
+        function markBrackets(tokens) {
+          var tokensLength = tokens.length;
+          var ps = []; // Parentheses
+          var sbs = []; // Square brackets
+          var cbs = []; // Curly brackets
+          var t = void 0; // Current token
+
+          // For every token in the token list, if we meet an opening (left)
+          // bracket, push its index number to a corresponding array.
+          // If we then meet a closing (right) bracket, look at the corresponding
+          // array. If there are any elements (records about previously met
+          // left brackets), take a token of the last left bracket (take
+          // the last index number from the array and find a token with
+          // this index number) and save right bracket's index as a reference:
+          for (var i = 0; i < tokensLength; i++) {
+            t = tokens[i];
+            var type = t.type;
+
+            if (type === TokenType.LeftParenthesis) {
+              ps.push(i);
+            } else if (type === TokenType.RightParenthesis) {
+              if (ps.length) {
+                t.left = ps.pop();
+                tokens[t.left].right = i;
+              }
+            } else if (type === TokenType.LeftSquareBracket) {
+              sbs.push(i);
+            } else if (type === TokenType.RightSquareBracket) {
+              if (sbs.length) {
+                t.left = sbs.pop();
+                tokens[t.left].right = i;
+              }
+            } else if (type === TokenType.LeftCurlyBracket) {
+              cbs.push(i);
+            } else if (type === TokenType.RightCurlyBracket) {
+              if (cbs.length) {
+                t.left = cbs.pop();
+                tokens[t.left].right = i;
               }
             }
           }
+        }
 
-          return function (tokens) {
-            markBrackets(tokens);
-            markSC(tokens);
-          };
-        })();
+        /**
+         * @param {Array} tokens
+         */
+        function markTokens(tokens) {
+          // Mark paired brackets:
+          markBrackets(tokens);
+          // Mark whitespaces and comments:
+          markSpacesAndComments(tokens);
+        }
+
+        module.exports = markTokens;
 
 /***/ },
-/* 12 */
+/* 13 */
 /***/ function(module, exports) {
 
         // jscs:disable
 
         'use strict';
 
         module.exports = {
             StringSQ: 'StringSQ',
             StringDQ: 'StringDQ',
             CommentML: 'CommentML',
@@ skipping 35 matching lines @@
             LeftCurlyBracket: 'LeftCurlyBracket', // {
             VerticalLine: 'VerticalLine', // |
             RightCurlyBracket: 'RightCurlyBracket', // }
             Tilde: 'Tilde', // ~
 
             Identifier: 'Identifier',
             DecimalNumber: 'DecimalNumber'
         };
 
 /***/ },
-/* 13 */
+/* 14 */
 /***/ function(module, exports, __webpack_require__) {
 
-        // jscs:disable maximumLineLength
-        'use strict';var Node=__webpack_require__(1);var NodeType=__webpack_require__(14);var TokenType=__webpack_require__(12);var tokens=undefined;var tokensLength=undefined;var pos=undefined;var contexts={'arguments':function(){return checkArguments(pos) && getArguments();},'atkeyword':function(){return checkAtkeyword(pos) && getAtkeyword();},'atrule':function(){return checkAtrule(pos) && getAtrule();},'block':function(){return checkBlock(pos) && getBlock();},'brackets':function(){return checkBrackets(pos) && getBrackets();},'class':function(){return checkClass(pos) && getClass();},'combinator':function(){return checkCombinator(pos) && getCombinator();},'commentML':function(){return checkCommentML(pos) && getCommentML();},'commentSL':function(){return checkCommentSL(pos) && getCommentSL();},'condition':function(){return checkCondition(pos) && getCondition();},'conditionalStatement':function(){return checkConditionalStatement(pos) && getConditionalStatement();},'declaration':function(){return checkDeclaration(pos) && getDeclaration();},'declDelim':function(){return checkDeclDelim(pos) && getDeclDelim();},'default':function(){return checkDefault(pos) && getDefault();},'delim':function(){return checkDelim(pos) && getDelim();},'dimension':function(){return checkDimension(pos) && getDimension();},'expression':function(){return checkExpression(pos) && getExpression();},'extend':function(){return checkExtend(pos) && getExtend();},'function':function(){return checkFunction(pos) && getFunction();},'global':function(){return checkGlobal(pos) && getGlobal();},'ident':function(){return checkIdent(pos) && getIdent();},'important':function(){return checkImportant(pos) && getImportant();},'include':function(){return checkInclude(pos) && getInclude();},'interpolation':function(){return checkInterpolation(pos) && getInterpolation();},'loop':function(){return checkLoop(pos) && getLoop();},'mixin':function(){return checkMixin(pos) && getMixin();},'namespace':function(){return checkNamespace(pos) && getNamespace();},'number':function(){return checkNumber(pos) && getNumber();},'operator':function(){return checkOperator(pos) && getOperator();},'optional':function(){return checkOptional(pos) && getOptional();},'parentheses':function(){return checkParentheses(pos) && getParentheses();},'parentselector':function(){return checkParentSelector(pos) && getParentSelector();},'percentage':function(){return checkPercentage(pos) && getPercentage();},'placeholder':function(){return checkPlaceholder(pos) && getPlaceholder();},'progid':function(){return checkProgid(pos) && getProgid();},'property':function(){return checkProperty(pos) && getProperty();},'propertyDelim':function(){return checkPropertyDelim(pos) && getPropertyDelim();},'pseudoc':function(){return checkPseudoc(pos) && getPseudoc();},'pseudoe':function(){return checkPseudoe(pos) && getPseudoe();},'ruleset':function(){return checkRuleset(pos) && getRuleset();},'s':function(){return checkS(pos) && getS();},'selector':function(){return checkSelector(pos) && getSelector();},'shash':function(){return checkShash(pos) && getShash();},'string':function(){return checkString(pos) && getString();},'stylesheet':function(){return checkStylesheet(pos) && getStylesheet();},'unary':function(){return checkUnary(pos) && getUnary();},'uri':function(){return checkUri(pos) && getUri();},'value':function(){return checkValue(pos) && getValue();},'variable':function(){return checkVariable(pos) && getVariable();},'variableslist':function(){return checkVariablesList(pos) && getVariablesList();},'vhash':function(){return checkVhash(pos) && getVhash();}}; /**
+        'use strict';
+
+        var Node = __webpack_require__(1);
+        var NodeType = __webpack_require__(15);
+        var TokenType = __webpack_require__(13);
+
+        /**
+         * @type {Array}
+         */
+        var tokens;
+
+        /**
+         * @type {Number}
+         */
+        var tokensLength;
+
+        /**
+         * @type {Number}
+         */
+        var pos;
+
+        var contexts = {
+          'atkeyword': function atkeyword() {
+            return checkAtkeyword(pos) && getAtkeyword();
+          },
+          'atrule': function atrule() {
+            return checkAtrule(pos) && getAtrule();
+          },
+          'block': function block() {
+            return checkBlock(pos) && getBlock();
+          },
+          'brackets': function brackets() {
+            return checkBrackets(pos) && getBrackets();
+          },
+          'class': function _class() {
+            return checkClass(pos) && getClass();
+          },
+          'combinator': function combinator() {
+            return checkCombinator(pos) && getCombinator();
+          },
+          'commentML': function commentML() {
+            return checkCommentML(pos) && getCommentML();
+          },
+          'declaration': function declaration() {
+            return checkDeclaration(pos) && getDeclaration();
+          },
+          'declDelim': function declDelim() {
+            return checkDeclDelim(pos) && getDeclDelim();
+          },
+          'delim': function delim() {
+            return checkDelim(pos) && getDelim();
+          },
+          'dimension': function dimension() {
+            return checkDimension(pos) && getDimension();
+          },
+          'expression': function expression() {
+            return checkExpression(pos) && getExpression();
+          },
+          'function': function _function() {
+            return checkFunction(pos) && getFunction();
+          },
+          'ident': function ident() {
+            return checkIdent(pos) && getIdent();
+          },
+          'important': function important() {
+            return checkImportant(pos) && getImportant();
+          },
+          'namespace': function namespace() {
+            return checkNamespace(pos) && getNamespace();
+          },
+          'number': function number() {
+            return checkNumber(pos) && getNumber();
+          },
+          'operator': function operator() {
+            return checkOperator(pos) && getOperator();
+          },
+          'parentheses': function parentheses() {
+            return checkParentheses(pos) && getParentheses();
+          },
+          'percentage': function percentage() {
+            return checkPercentage(pos) && getPercentage();
+          },
+          'progid': function progid() {
+            return checkProgid(pos) && getProgid();
+          },
+          'property': function property() {
+            return checkProperty(pos) && getProperty();
+          },
+          'propertyDelim': function propertyDelim() {
+            return checkPropertyDelim(pos) && getPropertyDelim();
+          },
+          'pseudoc': function pseudoc() {
+            return checkPseudoc(pos) && getPseudoc();
+          },
+          'pseudoe': function pseudoe() {
+            return checkPseudoe(pos) && getPseudoe();
+          },
+          'ruleset': function ruleset() {
+            return checkRuleset(pos) && getRuleset();
+          },
+          's': function s() {
+            return checkS(pos) && getS();
+          },
+          'selector': function selector() {
+            return checkSelector(pos) && getSelector();
+          },
+          'shash': function shash() {
+            return checkShash(pos) && getShash();
+          },
+          'string': function string() {
+            return checkString(pos) && getString();
+          },
+          'stylesheet': function stylesheet() {
+            return checkStylesheet(pos) && getStylesheet();
+          },
+          'unary': function unary() {
+            return checkUnary(pos) && getUnary();
+          },
+          'unicodeRange': function unicodeRange() {
+            return checkUnicodeRange(pos) && getUnicodeRange();
+          },
+          'universalSelector': function universalSelector() {
+            return checkUniversalSelector(pos) && getUniversalSelector();
+          },
+          'urange': function urange() {
+            return checkUrange(pos) && getUrange();
+          },
+          'uri': function uri() {
+            return checkUri(pos) && getUri();
+          },
+          'value': function value() {
+            return checkValue(pos) && getValue();
+          },
+          'vhash': function vhash() {
+            return checkVhash(pos) && getVhash();
+          }
+        };
+
+        /**
+         * Stop parsing and display error.
+         * @param {Number=} i Token's index number
+         */
+        function throwError(i) {
+          var ln = tokens[i].ln;
+
+          throw { line: ln, syntax: 'css' };
+        }
+
+        /**
+         * @param {Object} exclude
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkExcluding(exclude, i) {
+          var start = i;
+
+          while (i < tokensLength) {
+            if (exclude[tokens[i++].type]) break;
+          }
+
+          return i - start - 2;
+        }
+
+        /**
+         * @param {Number} start
+         * @param {Number} finish
+         * @return {String}
+         */
+        function joinValues(start, finish) {
+          var s = '';
+
+          for (var i = start; i < finish + 1; i++) {
+            s += tokens[i].value;
+          }
+
+          return s;
+        }
+
+        /**
+         * @param {Number} start
+         * @param {Number} num
+         * @return {String}
+         */
+        function joinValues2(start, num) {
+          if (start + num - 1 >= tokensLength) return;
+
+          var s = '';
+
+          for (var i = 0; i < num; i++) {
+            s += tokens[start + i].value;
+          }
+
+          return s;
+        }
+
+        function getLastPosition(content, line, column, colOffset) {
+          return typeof content === 'string' ? getLastPositionForString(content, line, column, colOffset) : getLastPositionForArray(content, line, column, colOffset);
+        }
+
+        function getLastPositionForString(content, line, column, colOffset) {
+          var position = [];
+
+          if (!content) {
+            position = [line, column];
+            if (colOffset) position[1] += colOffset - 1;
+            return position;
+          }
+
+          var lastLinebreak = content.lastIndexOf('\n');
+          var endsWithLinebreak = lastLinebreak === content.length - 1;
+          var splitContent = content.split('\n');
+          var linebreaksCount = splitContent.length - 1;
+          var prevLinebreak = linebreaksCount === 0 || linebreaksCount === 1 ? -1 : content.length - splitContent[linebreaksCount - 1].length - 2;
+
+          // Line:
+          var offset = endsWithLinebreak ? linebreaksCount - 1 : linebreaksCount;
+          position[0] = line + offset;
+
+          // Column:
+          if (endsWithLinebreak) {
+            offset = prevLinebreak !== -1 ? content.length - prevLinebreak : content.length - 1;
+          } else {
+            offset = linebreaksCount !== 0 ? content.length - lastLinebreak - column - 1 : content.length - 1;
+          }
+          position[1] = column + offset;
+
+          if (!colOffset) return position;
+
+          if (endsWithLinebreak) {
+            position[0]++;
+            position[1] = colOffset;
+          } else {
+            position[1] += colOffset;
+          }
+
+          return position;
+        }
+
+        function getLastPositionForArray(content, line, column, colOffset) {
+          var position;
+
+          if (content.length === 0) {
+            position = [line, column];
+          } else {
+            var c = content[content.length - 1];
+            if (c.hasOwnProperty('end')) {
+              position = [c.end.line, c.end.column];
+            } else {
+              position = getLastPosition(c.content, line, column);
+            }
+          }
+
+          if (!colOffset) return position;
+
+          if (tokens[pos - 1] && tokens[pos - 1].type !== 'Newline') {
+            position[1] += colOffset;
+          } else {
+            position[0]++;
+            position[1] = 1;
+          }
+
+          return position;
+        }
+
+        function newNode(type, content, line, column, end) {
+          if (!end) end = getLastPosition(content, line, column);
+          return new Node({
+            type: type,
+            content: content,
+            start: {
+              line: line,
+              column: column
+            },
+            end: {
+              line: end[0],
+              column: end[1]
+            },
+            syntax: 'css'
+          });
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkAny(i) {
+          var l;
+
+          if (l = checkBrackets(i)) tokens[i].any_child = 1;else if (l = checkParentheses(i)) tokens[i].any_child = 2;else if (l = checkString(i)) tokens[i].any_child = 3;else if (l = checkPercentage(i)) tokens[i].any_child = 4;else if (l = checkDimension(i)) tokens[i].any_child = 5;else if (l = checkUnicodeRange(i)) tokens[i].any_child = 13;else if (l = checkNumber(i)) tokens[i].any_child = 6;else if (l = checkUri(i)) tokens[i].any_child = 7;else if (l = checkExpression(i)) tokens[i].any_child = 8;else if (l = checkFunction(i)) tokens[i].any_child = 9;else if (l = checkIdent(i)) tokens[i].any_child = 10;else if (l = checkClass(i)) tokens[i].any_child = 11;else if (l = checkUnary(i)) tokens[i].any_child = 12;
+
+          return l;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getAny() {
+          var childType = tokens[pos].any_child;
+
+          if (childType === 1) return getBrackets();else if (childType === 2) return getParentheses();else if (childType === 3) return getString();else if (childType === 4) return getPercentage();else if (childType === 5) return getDimension();else if (childType === 13) return getUnicodeRange();else if (childType === 6) return getNumber();else if (childType === 7) return getUri();else if (childType === 8) return getExpression();else if (childType === 9) return getFunction();else if (childType === 10) return getIdent();else if (childType === 11) return getClass();else if (childType === 12) return getUnary();
+        }
+
+        /**
+         * Check if token is part of an @-word (e.g. `@import`, `@include`)
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkAtkeyword(i) {
+          var l;
+
+          // Check that token is `@`:
+          if (i >= tokensLength || tokens[i++].type !== TokenType.CommercialAt) return 0;
+
+          return (l = checkIdent(i)) ? l + 1 : 0;
+        }
+
+        /**
+         * Get node with @-word
+         * @return {Node}
+         */
+        function getAtkeyword() {
+          var type = NodeType.AtkeywordType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          pos++;
+
+          content.push(getIdent());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is a part of an @-rule
+         * @param {Number} i Token's index number
+         * @return {Number} Length of @-rule
+         */
+        function checkAtrule(i) {
+          var l;
+
+          if (i >= tokensLength) return 0;
+
+          // If token already has a record of being part of an @-rule,
+          // return the @-rule's length:
+          if (tokens[i].atrule_l !== undefined) return tokens[i].atrule_l;
+
+          // If token is part of an @-rule, save the rule's type to token.
+          // @keyframes:
+          if (l = checkKeyframesRule(i)) tokens[i].atrule_type = 4;
+          // @-rule with ruleset:
+          else if (l = checkAtruler(i)) tokens[i].atrule_type = 1;
+            // Block @-rule:
+            else if (l = checkAtruleb(i)) tokens[i].atrule_type = 2;
+              // Single-line @-rule:
+              else if (l = checkAtrules(i)) tokens[i].atrule_type = 3;else return 0;
+
+          // If token is part of an @-rule, save the rule's length to token:
+          tokens[i].atrule_l = l;
+
+          return l;
+        }
+
+        /**
+         * Get node with @-rule
+         * @return {Node}
+         */
+        function getAtrule() {
+          switch (tokens[pos].atrule_type) {
+            case 1:
+              return getAtruler(); // @-rule with ruleset
+            case 2:
+              return getAtruleb(); // Block @-rule
+            case 3:
+              return getAtrules(); // Single-line @-rule
+            case 4:
+              return getKeyframesRule();
+          }
+        }
+
+        /**
+         * Check if token is part of a block @-rule
+         * @param {Number} i Token's index number
+         * @return {Number} Length of the @-rule
+         */
+        function checkAtruleb(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (l = checkTsets(i)) i += l;
+
+          if (l = checkBlock(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * Get node with a block @-rule
+         * @return {Node}
+         */
+        function getAtruleb() {
+          var type = NodeType.AtruleType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getAtkeyword()].concat(getTsets()).concat([getBlock()]);
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is part of an @-rule with ruleset
+         * @param {Number} i Token's index number
+         * @return {Number} Length of the @-rule
+         */
+        function checkAtruler(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (l = checkTsets(i)) i += l;
+
+          if (i < tokensLength && tokens[i].type === TokenType.LeftCurlyBracket) i++;else return 0;
+
+          if (l = checkAtrulers(i)) i += l;
+
+          if (i < tokensLength && tokens[i].type === TokenType.RightCurlyBracket) i++;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * Get node with an @-rule with ruleset
+         * @return {Node}
+         */
+        function getAtruler() {
+          var type = NodeType.AtruleType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getAtkeyword()];
+
+          content = content.concat(getTsets());
+
+          content.push(getAtrulers());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkAtrulers(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          while (i < tokensLength) {
+            if (l = checkSC(i)) tokens[i].atrulers_child = 1;else if (l = checkAtrule(i)) tokens[i].atrulers_child = 2;else if (l = checkRuleset(i)) tokens[i].atrulers_child = 3;else break;
+            i += l;
+          }
+
+          tokens[i].atrulers_end = 1;
+
+          if (l = checkSC(i)) i += l;
+
+          return i - start;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getAtrulers() {
+          var type = NodeType.BlockType;
+          var token = tokens[pos++];
+          var line = token.ln;
+          var column = token.col;
+          var content = getSC();
+
+          while (!tokens[pos].atrulers_end) {
+            var childType = tokens[pos].atrulers_child;
+            if (childType === 1) content = content.concat(getSC());else if (childType === 2) content.push(getAtrule());else if (childType === 3) content.push(getRuleset());
+          }
+
+          content = content.concat(getSC());
+
+          var end = getLastPosition(content, line, column, 1);
+          pos++;
+
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkAtrules(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (l = checkTsets(i)) i += l;
+
+          return i - start;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getAtrules() {
+          var type = NodeType.AtruleType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getAtkeyword()].concat(getTsets());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is part of a block (e.g. `{...}`).
+         * @param {Number} i Token's index number
+         * @return {Number} Length of the block
+         */
+        function checkBlock(i) {
+          return i < tokensLength && tokens[i].type === TokenType.LeftCurlyBracket ? tokens[i].right - i + 1 : 0;
+        }
+
+        /**
+         * Get node with a block
+         * @return {Node}
+         */
+        function getBlock() {
+          var type = NodeType.BlockType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var end = tokens[pos++].right;
+          var content = [];
+
+          while (pos < end) {
+            if (checkBlockdecl(pos)) content = content.concat(getBlockdecl());else throwError(pos);
+          }
+
+          var end_ = getLastPosition(content, line, column, 1);
+          pos = end + 1;
+
+          return newNode(type, content, line, column, end_);
+        }
+
+        /**
+         * Check if token is part of a declaration (property-value pair)
+         * @param {Number} i Token's index number
+         * @return {Number} Length of the declaration
+         */
+        function checkBlockdecl(i) {
+          var l;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkBlockdecl1(i)) tokens[i].bd_type = 1;else if (l = checkBlockdecl2(i)) tokens[i].bd_type = 2;else if (l = checkBlockdecl3(i)) tokens[i].bd_type = 3;else if (l = checkBlockdecl4(i)) tokens[i].bd_type = 4;else return 0;
+
+          return l;
+        }
+
+        /**
+         * @return {Array}
+         */
+        function getBlockdecl() {
+          switch (tokens[pos].bd_type) {
+            case 1:
+              return getBlockdecl1();
+            case 2:
+              return getBlockdecl2();
+            case 3:
+              return getBlockdecl3();
+            case 4:
+              return getBlockdecl4();
+          }
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkBlockdecl1(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkDeclaration(i)) tokens[i].bd_kind = 1;else if (l = checkAtrule(i)) tokens[i].bd_kind = 2;else return 0;
+
+          i += l;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i < tokensLength && (l = checkDeclDelim(i))) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * @return {Array}
+         */
+        function getBlockdecl1() {
+          var sc = getSC();
+          var x = void 0;
+
+          switch (tokens[pos].bd_kind) {
+            case 1:
+              x = getDeclaration();
+              break;
+            case 2:
+              x = getAtrule();
+              break;
+          }
+
+          return sc.concat([x]).concat(getSC()).concat([getDeclDelim()]).concat(getSC());
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkBlockdecl2(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkDeclaration(i)) tokens[i].bd_kind = 1;else if (l = checkAtrule(i)) tokens[i].bd_kind = 2;else return 0;
+
+          i += l;
+
+          if (l = checkSC(i)) i += l;
+
+          return i - start;
+        }
+
+        /**
+         * @return {Array}
+         */
+        function getBlockdecl2() {
+          var sc = getSC();
+          var x = void 0;
+
+          switch (tokens[pos].bd_kind) {
+            case 1:
+              x = getDeclaration();
+              break;
+            case 2:
+              x = getAtrule();
+              break;
+          }
+
+          return sc.concat([x]).concat(getSC());
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkBlockdecl3(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkDeclDelim(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          return i - start;
+        }
+
+        /**
+         * @return {Array}
+         */
+        function getBlockdecl3() {
+          return getSC().concat([getDeclDelim()]).concat(getSC());
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkBlockdecl4(i) {
+          return checkSC(i);
+        }
+
+        /**
+         * @return {Array}
+         */
+        function getBlockdecl4() {
+          return getSC();
+        }
+
+        /**
+         * Check if token is part of text inside square brackets, e.g. `[1]`
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkBrackets(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+
+          if (tokens[i].type === TokenType.LeftSquareBracket) i++;else return 0;
+
+          if (i < tokens[start].right) {
+            var l = checkTsets(i);
+            if (l) i += l;else return 0;
+          }
+
+          i++;
+
+          return i - start;
+        }
+
+        /**
+         * Get node with text inside square brackets, e.g. `[1]`
+         * @return {Node}
+         */
+        function getBrackets() {
+          var type = NodeType.BracketsType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+
+          var tsets = [];
+          var right = token.right;
+
+          pos++;
+
+          if (pos < right) {
+            tsets = getTsets();
+          }
+
+          var end = getLastPosition(tsets, line, column, 1);
+          pos++;
+
+          return newNode(type, tsets, line, column, end);
+        }
+
+        /**
+         * Check if token is part of a class selector (e.g. `.abc`)
+         * @param {Number} i Token's index number
+         * @return {Number} Length of the class selector
+         */
+        function checkClass(i) {
+          var l;
+
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].class_l) return tokens[i].class_l;
+
+          if (tokens[i++].type === TokenType.FullStop && (l = checkIdent(i))) {
+            tokens[i].class_l = l + 1;
+            return l + 1;
+          }
+
+          return 0;
+        }
+
+        /**
+         * Get node with a class selector
+         * @return {Node}
+         */
+        function getClass() {
+          var type = NodeType.ClassType;
+          var token = tokens[pos++];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getIdent()];
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkCombinator(i) {
+          if (i >= tokensLength) return 0;
+
+          var l = void 0;
+          if (l = checkCombinator1(i)) tokens[i].combinatorType = 1;else if (l = checkCombinator2(i)) tokens[i].combinatorType = 2;else if (l = checkCombinator3(i)) tokens[i].combinatorType = 3;
+
+          return l;
+        }
+
+        function getCombinator() {
+          var type = tokens[pos].combinatorType;
+          if (type === 1) return getCombinator1();
+          if (type === 2) return getCombinator2();
+          if (type === 3) return getCombinator3();
+        }
+        /**
+         * (1) `||`
+         */
+        function checkCombinator1(i) {
+          if (tokens[i].type === TokenType.VerticalLine && tokens[i + 1].type === TokenType.VerticalLine) return 2;else return 0;
+        }
+
+        function getCombinator1() {
+          var type = NodeType.CombinatorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = '||';
+
+          pos += 2;
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * (1) `>`
+         * (2) `+`
+         * (3) `~`
+         */
+        function checkCombinator2(i) {
+          var type = tokens[i].type;
+          if (type === TokenType.PlusSign || type === TokenType.GreaterThanSign || type === TokenType.Tilde) return 1;else return 0;
+        }
+
+        function getCombinator2() {
+          var type = NodeType.CombinatorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = tokens[pos++].value;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * (1) `/panda/`
+         */
+        function checkCombinator3(i) {
+          var start = i;
+
+          if (tokens[i].type === TokenType.Solidus) i++;else return 0;
+
+          var l = void 0;
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          if (tokens[i].type === TokenType.Solidus) i++;else return 0;
+
+          return i - start;
+        }
+
+        function getCombinator3() {
+          var type = NodeType.CombinatorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+
+          // Skip `/`.
+          pos++;
+          var ident = getIdent();
+
+          // Skip `/`.
+          pos++;
+
+          var content = '/' + ident.content + '/';
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is a multiline comment.
+         * @param {Number} i Token's index number
+         * @return {Number} `1` if token is a multiline comment, otherwise `0`
+         */
+        function checkCommentML(i) {
+          return i < tokensLength && tokens[i].type === TokenType.CommentML ? 1 : 0;
+        }
+
+        /**
+         * Get node with a multiline comment
+         * @return {Node}
+         */
+        function getCommentML() {
+          var type = NodeType.CommentMLType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = tokens[pos].value.substring(2);
+          var l = content.length;
+
+          if (content.charAt(l - 2) === '*' && content.charAt(l - 1) === '/') content = content.substring(0, l - 2);
+
+          var end = getLastPosition(content, line, column, 2);
+          if (end[0] === line) end[1] += 2;
+          pos++;
+
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
+         * Check if token is part of a declaration (property-value pair)
+         * @param {Number} i Token's index number
+         * @return {Number} Length of the declaration
+         */
+        function checkDeclaration(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkProperty(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkPropertyDelim(i)) i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkValue(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * Get node with a declaration
+         * @return {Node}
+         */
+        function getDeclaration() {
+          var type = NodeType.DeclarationType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+
+          var content = [getProperty()].concat(getSC()).concat([getPropertyDelim()]).concat(getSC()).concat([getValue()]);
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is a semicolon
+         * @param {Number} i Token's index number
+         * @return {Number} `1` if token is a semicolon, otherwise `0`
+         */
+        function checkDeclDelim(i) {
+          return i < tokensLength && tokens[i].type === TokenType.Semicolon ? 1 : 0;
+        }
+
+        /**
+         * Get node with a semicolon
+         * @return {Node}
+         */
+        function getDeclDelim() {
+          var type = NodeType.DeclDelimType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = ';';
+
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is a comma
+         * @param {Number} i Token's index number
+         * @return {Number} `1` if token is a comma, otherwise `0`
+         */
+        function checkDelim(i) {
+          return i < tokensLength && tokens[i].type === TokenType.Comma ? 1 : 0;
+        }
+
+        /**
+         * Get node with a comma
+         * @return {Node}
+         */
+        function getDelim() {
+          var type = NodeType.DelimType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = ',';
+
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is part of a number with dimension unit (e.g. `10px`)
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkDimension(i) {
+          var ln = checkNumber(i);
+          var li = void 0;
+
+          if (i >= tokensLength || !ln || i + ln >= tokensLength) return 0;
+
+          return (li = checkUnit(i + ln)) ? ln + li : 0;
+        }
+
+        /**
+         * Get node of a number with dimension unit
+         * @return {Node}
+         */
+        function getDimension() {
+          var type = NodeType.DimensionType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getNumber(), getUnit()];
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is unit
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkUnit(i) {
+          var units = ['em', 'ex', 'ch', 'rem', 'vh', 'vw', 'vmin', 'vmax', 'px', 'mm', 'q', 'cm', 'in', 'pt', 'pc', 'deg', 'grad', 'rad', 'turn', 's', 'ms', 'Hz', 'kHz', 'dpi', 'dpcm', 'dppx'];
+
+          return units.indexOf(tokens[i].value) !== -1 ? 1 : 0;
+        }
+
+        /**
+         * Get unit node of type ident
+         * @return {Node} An ident node containing the unit value
+         */
+        function getUnit() {
+          var type = NodeType.IdentType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = token.value;
+
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkExpression(i) {
+          var start = i;
+
+          if (i >= tokensLength || tokens[i++].value !== 'expression' || i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) {
+            return 0;
+          }
+
+          return tokens[i].right - start + 1;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getExpression() {
+          var type = NodeType.ExpressionType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+
+          pos++;
+
+          var content = joinValues(pos + 1, tokens[pos].right - 1);
+          var end = getLastPosition(content, line, column, 1);
+          if (end[0] === line) end[1] += 11;
+          pos = tokens[pos].right + 1;
+
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkFunction(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          return i < tokensLength && tokens[i].type === TokenType.LeftParenthesis ? tokens[i].right - start + 1 : 0;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getFunction() {
+          var type = NodeType.FunctionType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var ident = getIdent();
+          var content = [ident];
+
+          content.push(getArguments());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getArguments() {
+          var type = NodeType.ArgumentsType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+          var body = void 0;
+
+          pos++;
+
+          while (pos < tokensLength && tokens[pos].type !== TokenType.RightParenthesis) {
+            if (checkDeclaration(pos)) content.push(getDeclaration());else if (checkArgument(pos)) {
+              body = getArgument();
+              if (typeof body.content === 'string') content.push(body);else content = content.concat(body);
+            } else if (checkClass(pos)) content.push(getClass());else throwError(pos);
+          }
+
+          var end = getLastPosition(content, line, column, 1);
+          pos++;
+
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkArgument(i) {
+          var l;
+
+          if (l = checkVhash(i)) tokens[i].argument_child = 1;else if (l = checkAny(i)) tokens[i].argument_child = 2;else if (l = checkSC(i)) tokens[i].argument_child = 3;else if (l = checkOperator(i)) tokens[i].argument_child = 4;
+
+          return l;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getArgument() {
+          var childType = tokens[pos].argument_child;
+          if (childType === 1) return getVhash();else if (childType === 2) return getAny();else if (childType === 3) return getSC();else if (childType === 4) return getOperator();
+        }
+
+        /**
+         * Check if token is part of an identifierю
+         * Grammar from CSS spec:
+         *   h         [0-9a-f]
+         *   nonascii  [\240-\377]
+         *   unicode   \\{h}{1,6}(\r\n|[ \t\r\n\f])?
+         *   escape    {unicode}|\\[^\r\n\f0-9a-f]
+         *   nmstart   [_a-z]|{nonascii}|{escape}
+         *   nmchar    [_a-z0-9-]|{nonascii}|{escape}
+         *   ident     -?{nmstart}{nmchar}*
+         *
+         * @param {number} i Token's index number
+         * @return {number} Length of the identifier
+         */
+        function checkIdent(i) {
+          var start = i;
+
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].type === TokenType.HyphenMinus) i++;
+
+          if (tokens[i].type === TokenType.LowLine || tokens[i].type === TokenType.Identifier) i++;else return 0;
+
+          for (; i < tokensLength; i++) {
+            if (tokens[i].type !== TokenType.HyphenMinus && tokens[i].type !== TokenType.LowLine && tokens[i].type !== TokenType.Identifier && tokens[i].type !== TokenType.DecimalNumber) break;
+          }
+
+          tokens[start].ident_last = i - 1;
+
+          return i - start;
+        }
+
+        /**
+         * Get node with an identifier
+         * @return {Node}
+         */
+        function getIdent() {
+          var type = NodeType.IdentType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = joinValues(pos, tokens[pos].ident_last);
+
+          pos = tokens[pos].ident_last + 1;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is part of `!important` word
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkImportant(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength || tokens[i++].type !== TokenType.ExclamationMark) return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].value === 'important') {
+            tokens[start].importantEnd = i;
+            return i - start + 1;
+          } else {
+            return 0;
+          }
+        }
+
+        /**
+         * Get node with `!important` word
+         * @return {Node}
+         */
+        function getImportant() {
+          var type = NodeType.ImportantType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = joinValues(pos, token.importantEnd);
+
+          pos = token.importantEnd + 1;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check a single keyframe block - `5% {}`
+         * @param {Number} i
+         * @returns {Number}
+         */
+        function checkKeyframesBlock(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkKeyframesSelectorsGroup(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkBlock(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * Get a single keyframe block - `5% {}`
+         * @returns {Node}
+         */
+        function getKeyframesBlock() {
+          var type = NodeType.RulesetType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [].concat(getKeyframesSelectorsGroup(), getSC(), [getBlock()]);
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check all keyframe blocks - `5% {} 100% {}`
+         * @param {Number} i
+         * @returns {Number}
+         */
+        function checkKeyframesBlocks(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i < tokensLength && tokens[i].type === TokenType.LeftCurlyBracket) i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkKeyframesBlock(i)) i += l;else return 0;
+
+          while (tokens[i].type !== TokenType.RightCurlyBracket) {
+            if (l = checkSC(i)) i += l;else if (l = checkKeyframesBlock(i)) i += l;else break;
+          }
+
+          if (i < tokensLength && tokens[i].type === TokenType.RightCurlyBracket) i++;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * Get all keyframe blocks - `5% {} 100% {}`
+         * @returns {Node}
+         */
+        function getKeyframesBlocks() {
+          var type = NodeType.BlockType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+          var keyframesBlocksEnd = token.right;
+
+          // Skip `{`.
+          pos++;
+
+          while (pos < keyframesBlocksEnd) {
+            if (checkSC(pos)) content = content.concat(getSC());else if (checkKeyframesBlock(pos)) content.push(getKeyframesBlock());
+          }
+
+          var end = getLastPosition(content, line, column, 1);
+
+          // Skip `}`.
+          pos++;
+
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
+         * Check if token is part of a @keyframes rule.
+         * @param {Number} i Token's index number
+         * @return {Number} Length of the @keyframes rule
+         */
+        function checkKeyframesRule(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          var atruleName = joinValues2(i - l, l);
+          if (atruleName.indexOf('keyframes') === -1) return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkKeyframesBlocks(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getKeyframesRule() {
+          var type = NodeType.AtruleType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [].concat([getAtkeyword()], getSC(), [getIdent()], getSC(), [getKeyframesBlocks()]);
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check a single keyframe selector - `5%`, `from` etc
+         * @param {Number} i
+         * @returns {Number}
+         */
+        function checkKeyframesSelector(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdent(i)) {
+            // Valid selectors are only `from` and `to`.
+            var selector = joinValues2(i, l);
+            if (selector !== 'from' && selector !== 'to') return 0;
+
+            i += l;
+            tokens[start].keyframesSelectorType = 1;
+          } else if (l = checkPercentage(i)) {
+            i += l;
+            tokens[start].keyframesSelectorType = 2;
+          } else {
+            return 0;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * Get a single keyframe selector
+         * @returns {Node}
+         */
+        function getKeyframesSelector() {
+          var keyframesSelectorType = NodeType.KeyframesSelectorType;
+          var selectorType = NodeType.SelectorType;
+
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          if (token.keyframesSelectorType === 1) {
+            content.push(getIdent());
+          } else {
+            content.push(getPercentage());
+          }
+
+          var keyframesSelector = newNode(keyframesSelectorType, content, line, column);
+          return newNode(selectorType, [keyframesSelector], line, column);
+        }
+
+        /**
+         * Check the keyframe's selector groups
+         * @param {Number} i
+         * @returns {Number}
+         */
+        function checkKeyframesSelectorsGroup(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkKeyframesSelector(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var sb = checkSC(i);
+            var c = checkDelim(i + sb);
+            if (!c) break;
+            var sa = checkSC(i + sb + c);
+            if (l = checkKeyframesSelector(i + sb + c + sa)) i += sb + c + sa + l;else break;
+          }
+
+          tokens[start].selectorsGroupEnd = i;
+
+          return i - start;
+        }
+
+        /**
+         * Get the keyframe's selector groups
+         * @returns {Array} An array of keyframe selectors
+         */
+        function getKeyframesSelectorsGroup() {
+          var selectorsGroup = [];
+          var selectorsGroupEnd = tokens[pos].selectorsGroupEnd;
+
+          selectorsGroup.push(getKeyframesSelector());
+
+          while (pos < selectorsGroupEnd) {
+            selectorsGroup = selectorsGroup.concat(getSC());
+            selectorsGroup.push(getDelim());
+            selectorsGroup = selectorsGroup.concat(getSC());
+            selectorsGroup.push(getKeyframesSelector());
+          }
+
+          return selectorsGroup;
+        }
+
+        /**
+         * Check if token is a namespace sign (`|`)
+         * @param {Number} i Token's index number
+         * @return {Number} `1` if token is `|`, `0` if not
+         */
+        function checkNamespace(i) {
+          return i < tokensLength && tokens[i].type === TokenType.VerticalLine ? 1 : 0;
+        }
+
+        /**
+         * Get node with a namespace sign
+         * @return {Node}
+         */
+        function getNamespace() {
+          var type = NodeType.NamespaceType;
+          var token = tokens[pos++];
+          var line = token.ln;
+          var column = token.col;
+          var content = '|';
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkNmName2(i) {
+          if (tokens[i].type === TokenType.Identifier) return 1;else if (tokens[i].type !== TokenType.DecimalNumber) return 0;
+
+          i++;
+
+          return i < tokensLength && tokens[i].type === TokenType.Identifier ? 2 : 1;
+        }
+
+        /**
+         * @return {String}
+         */
+        function getNmName2() {
+          var s = tokens[pos].value;
+
+          if (tokens[pos++].type === TokenType.DecimalNumber && pos < tokensLength && tokens[pos].type === TokenType.Identifier) s += tokens[pos++].value;
+
+          return s;
+        }
+
+        /**
+         * Check if token is part of a number
+         * @param {Number} i Token's index number
+         * @return {Number} Length of number
+         */
+        function checkNumber(i) {
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].number_l) return tokens[i].number_l;
+
+          // `10`:
+          if (i < tokensLength && tokens[i].type === TokenType.DecimalNumber && (!tokens[i + 1] || tokens[i + 1] && tokens[i + 1].type !== TokenType.FullStop)) {
+            tokens[i].number_l = 1;
+            return 1;
+          }
+
+          // `10.`:
+          if (i < tokensLength && tokens[i].type === TokenType.DecimalNumber && tokens[i + 1] && tokens[i + 1].type === TokenType.FullStop && (!tokens[i + 2] || tokens[i + 2].type !== TokenType.DecimalNumber)) {
+            tokens[i].number_l = 2;
+            return 2;
+          }
+
+          // `.10`:
+          if (i < tokensLength && tokens[i].type === TokenType.FullStop && tokens[i + 1].type === TokenType.DecimalNumber) {
+            tokens[i].number_l = 2;
+            return 2;
+          }
+
+          // `10.10`:
+          if (i < tokensLength && tokens[i].type === TokenType.DecimalNumber && tokens[i + 1] && tokens[i + 1].type === TokenType.FullStop && tokens[i + 2] && tokens[i + 2].type === TokenType.DecimalNumber) {
+            tokens[i].number_l = 3;
+            return 3;
+          }
+
+          return 0;
+        }
+
+        /**
+         * Get node with number
+         * @return {Node}
+         */
+        function getNumber() {
+          var type = NodeType.NumberType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = '';
+          var l = tokens[pos].number_l;
+
+          for (var j = 0; j < l; j++) {
+            content += tokens[pos + j].value;
+          }
+
+          pos += l;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is an operator (`/`, `,`, `:` or `=`).
+         * @param {Number} i Token's index number
+         * @return {Number} `1` if token is an operator, otherwise `0`
+         */
+        function checkOperator(i) {
+          if (i >= tokensLength) return 0;
+
+          switch (tokens[i].type) {
+            case TokenType.Solidus:
+            case TokenType.Comma:
+            case TokenType.Colon:
+            case TokenType.EqualsSign:
+              return 1;
+          }
+
+          return 0;
+        }
+
+        /**
+         * Get node with an operator
+         * @return {Node}
+         */
+        function getOperator() {
+          var type = NodeType.OperatorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = token.value;
+
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is part of text inside parentheses, e.g. `(1)`
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkParentheses(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var right = tokens[i].right;
+
+          if (tokens[i].type === TokenType.LeftParenthesis) i++;else return 0;
+
+          if (i < right) {
+            var l = checkTsets(i);
+            if (l) i += l;else return 0;
+          }
+
+          i++;
+
+          return i - start;
+        }
+
+        /**
+         * Get node with text inside parentheses, e.g. `(1)`
+         * @return {Node}
+         */
+        function getParentheses() {
+          var type = NodeType.ParenthesesType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var tsets = [];
+          var right = token.right;
+
+          pos++;
+
+          if (pos < right) {
+            tsets = getTsets();
+          }
+
+          var end = getLastPosition(tsets, line, column, 1);
+          pos++;
+
+          return newNode(type, tsets, line, column, end);
+        }
+
+        /**
+         * Check if token is part of a number with percent sign (e.g. `10%`)
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkPercentage(i) {
+          var x;
+
+          if (i >= tokensLength) return 0;
+
+          x = checkNumber(i);
+
+          if (!x || i + x >= tokensLength) return 0;
+
+          return tokens[i + x].type === TokenType.PercentSign ? x + 1 : 0;
+        }
+
+        /**
+         * Get node of number with percent sign
+         * @return {Node}
+         */
+        function getPercentage() {
+          var type = NodeType.PercentageType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getNumber()];
+
+          var end = getLastPosition(content, line, column, 1);
+          pos++;
+
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkProgid(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (joinValues2(i, 6) === 'progid:DXImageTransform.Microsoft.') i += 6;else return 0;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].type === TokenType.LeftParenthesis) {
+            tokens[start].progid_end = tokens[i].right;
+            i = tokens[i].right + 1;
+          } else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getProgid() {
+          var type = NodeType.ProgidType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var progid_end = token.progid_end;
+          var content = joinValues(pos, progid_end);
+
+          pos = progid_end + 1;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is part of a property
+         * @param {Number} i Token's index number
+         * @return {Number} Length of the property
+         */
+        function checkProperty(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * Get node with a property
+         * @return {Node}
+         */
+        function getProperty() {
+          var type = NodeType.PropertyType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getIdent()];
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is a colon
+         * @param {Number} i Token's index number
+         * @return {Number} `1` if token is a colon, otherwise `0`
+         */
+        function checkPropertyDelim(i) {
+          return i < tokensLength && tokens[i].type === TokenType.Colon ? 1 : 0;
+        }
+
+        /**
+         * Get node with a colon
+         * @return {Node}
+         */
+        function getPropertyDelim() {
+          var type = NodeType.PropertyDelimType;
+          var token = tokens[pos++];
+          var line = token.ln;
+          var column = token.col;
+          var content = ':';
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkPseudo(i) {
+          return checkPseudoe(i) || checkPseudoc(i);
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getPseudo() {
+          if (checkPseudoe(pos)) return getPseudoe();
+          if (checkPseudoc(pos)) return getPseudoc();
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkPseudoe(i) {
+          var l;
+
+          if (i >= tokensLength || tokens[i++].type !== TokenType.Colon || i >= tokensLength || tokens[i++].type !== TokenType.Colon) return 0;
+
+          return (l = checkIdent(i)) ? l + 2 : 0;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getPseudoe() {
+          var type = NodeType.PseudoeType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          pos += 2;
+
+          content.push(getIdent());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkPseudoc(i) {
+          var l;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.Colon) return 0;
+
+          if (l = checkPseudoClass1(i)) tokens[i].pseudoClassType = 1;else if (l = checkPseudoClass2(i)) tokens[i].pseudoClassType = 2;else if (l = checkPseudoClass3(i)) tokens[i].pseudoClassType = 3;else if (l = checkPseudoClass4(i)) tokens[i].pseudoClassType = 4;else if (l = checkPseudoClass5(i)) tokens[i].pseudoClassType = 5;else if (l = checkPseudoClass6(i)) tokens[i].pseudoClassType = 6;else return 0;
+
+          return l;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getPseudoc() {
+          var childType = tokens[pos].pseudoClassType;
+          if (childType === 1) return getPseudoClass1();
+          if (childType === 2) return getPseudoClass2();
+          if (childType === 3) return getPseudoClass3();
+          if (childType === 4) return getPseudoClass4();
+          if (childType === 5) return getPseudoClass5();
+          if (childType === 6) return getPseudoClass6();
+        }
+
+        /**
+         * (1) `:panda(selector)`
+         * (2) `:panda(selector, selector)`
+         */
+        function checkPseudoClass1(i) {
+          var start = i;
+
+          // Skip `:`.
+          i++;
+
+          var l = void 0;
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          var right = tokens[i].right;
+
+          // Skip `(`.
+          i++;
+
+          if (l = checkSelectorsGroup(i)) i += l;else return 0;
+
+          if (i !== right) return 0;
+
+          return i - start + 1;
+        }
+
+        /**
+         * (-) `:not(panda)`
+         */
+        function getPseudoClass1() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `:`.
+          pos++;
+
+          content.push(getIdent());
+
+          {
+            var _type = NodeType.ArgumentsType;
+            var _token = tokens[pos];
+            var _line = _token.ln;
+            var _column = _token.col;
+
+            // Skip `(`.
+            pos++;
+
+            var selectors = getSelectorsGroup();
+            var end = getLastPosition(selectors, _line, _column, 1);
+            var args = newNode(_type, selectors, _line, _column, end);
+            content.push(args);
+
+            // Skip `)`.
+            pos++;
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * (1) `:nth-child(odd)`
+         * (2) `:nth-child(even)`
+         * (3) `:lang(de-DE)`
+         */
+        function checkPseudoClass2(i) {
+          var start = i;
+          var l = 0;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          var right = tokens[i].right;
+
+          // Skip `(`.
+          i++;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i !== right) return 0;
+
+          return i - start + 1;
+        }
+
+        function getPseudoClass2() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `:`.
+          pos++;
+
+          var ident = getIdent();
+          content.push(ident);
+
+          // Skip `(`.
+          pos++;
+
+          var l = tokens[pos].ln;
+          var c = tokens[pos].col;
+          var value = [];
+
+          value = value.concat(getSC());
+          value.push(getIdent());
+          value = value.concat(getSC());
+
+          var end = getLastPosition(value, l, c, 1);
+          var args = newNode(NodeType.ArgumentsType, value, l, c, end);
+          content.push(args);
+
+          // Skip `)`.
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * (-) `:nth-child(-3n + 2)`
+         */
+        function checkPseudoClass3(i) {
+          var start = i;
+          var l = 0;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          var right = tokens[i].right;
+
+          // Skip `(`.
+          i++;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkUnary(i)) i += l;
+          if (i >= tokensLength) return 0;
+          if (tokens[i].type === TokenType.DecimalNumber) i++;
+
+          if (i >= tokensLength) return 0;
+          if (tokens[i].value === 'n') i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i >= tokensLength) return 0;
+          if (tokens[i].value === '+' || tokens[i].value === '-') i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].type === TokenType.DecimalNumber) i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i !== right) return 0;
+
+          return i - start + 1;
+        }
+
+        function getPseudoClass3() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `:`.
+          pos++;
+
+          var ident = getIdent();
+          content.push(ident);
+
+          var l = tokens[pos].ln;
+          var c = tokens[pos].col;
+          var value = [];
+
+          // Skip `(`.
+          pos++;
+
+          if (checkUnary(pos)) value.push(getUnary());
+          if (checkNumber(pos)) value.push(getNumber());
+
+          {
+            var _l = tokens[pos].ln;
+            var _c = tokens[pos].col;
+            var _content = tokens[pos].value;
+            var _ident = newNode(NodeType.IdentType, _content, _l, _c);
+            value.push(_ident);
+            pos++;
+          }
+
+          value = value.concat(getSC());
+          if (checkUnary(pos)) value.push(getUnary());
+          value = value.concat(getSC());
+          if (checkNumber(pos)) value.push(getNumber());
+          value = value.concat(getSC());
+
+          var end = getLastPosition(value, l, c, 1);
+          var args = newNode(NodeType.ArgumentsType, value, l, c, end);
+          content.push(args);
+
+          // Skip `)`.
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * (-) `:nth-child(-3n)`
+         */
+        function checkPseudoClass4(i) {
+          var start = i;
+          var l = 0;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          if (i >= tokensLength) return 0;
+          if (tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          var right = tokens[i].right;
+
+          // Skip `(`.
+          i++;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkUnary(i)) i += l;
+          if (tokens[i].type === TokenType.DecimalNumber) i++;
+
+          if (tokens[i].value === 'n') i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i !== right) return 0;
+
+          return i - start + 1;
+        }
+
+        function getPseudoClass4() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `:`.
+          pos++;
+
+          var ident = getIdent();
+          content.push(ident);
+
+          // Skip `(`.
+          pos++;
+
+          var l = tokens[pos].ln;
+          var c = tokens[pos].col;
+          var value = [];
+
+          if (checkUnary(pos)) value.push(getUnary());
+          if (checkNumber(pos)) value.push(getNumber());
+          if (checkIdent(pos)) value.push(getIdent());
+          value = value.concat(getSC());
+
+          var end = getLastPosition(value, l, c, 1);
+          var args = newNode(NodeType.ArgumentsType, value, l, c, end);
+          content.push(args);
+
+          // Skip `)`.
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * (-) `:nth-child(+8)`
+         */
+        function checkPseudoClass5(i) {
+          var start = i;
+          var l = 0;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          if (i >= tokensLength) return 0;
+          if (tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          var right = tokens[i].right;
+
+          // Skip `(`.
+          i++;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkUnary(i)) i += l;
+          if (tokens[i].type === TokenType.DecimalNumber) i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i !== right) return 0;
+
+          return i - start + 1;
+        }
+
+        function getPseudoClass5() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `:`.
+          pos++;
+
+          var ident = getIdent();
+          content.push(ident);
+
+          // Skip `(`.
+          pos++;
+
+          var l = tokens[pos].ln;
+          var c = tokens[pos].col;
+          var value = [];
+
+          if (checkUnary(pos)) value.push(getUnary());
+          if (checkNumber(pos)) value.push(getNumber());
+          value = value.concat(getSC());
+
+          var end = getLastPosition(value, l, c, 1);
+          var args = newNode(NodeType.ArgumentsType, value, l, c, end);
+          content.push(args);
+
+          // Skip `)`.
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * (-) `:checked`
+         */
+        function checkPseudoClass6(i) {
+          var start = i;
+          var l = 0;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        function getPseudoClass6() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `:`.
+          pos++;
+
+          var ident = getIdent();
+          content.push(ident);
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkRuleset(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkSelectorsGroup(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkBlock(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * @return {Node}
+         */
+        function getRuleset() {
+          var type = NodeType.RulesetType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          content = content.concat(getSelectorsGroup());
+          content = content.concat(getSC());
+          content.push(getBlock());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is marked as a space (if it's a space or a tab
+         *      or a line break).
+         * @param {Number} i
+         * @return {Number} Number of spaces in a row starting with the given token.
+         */
+        function checkS(i) {
+          return i < tokensLength && tokens[i].ws ? tokens[i].ws_last - i + 1 : 0;
+        }
+
+        /**
+         * Get node with spaces
+         * @return {Node}
+         */
+        function getS() {
+          var type = NodeType.SType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = joinValues(pos, tokens[pos].ws_last);
+
+          pos = tokens[pos].ws_last + 1;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is a space or a comment.
+         * @param {Number} i Token's index number
+         * @return {Number} Number of similar (space or comment) tokens
+         *      in a row starting with the given token.
+         */
+        function checkSC(i) {
+          var l = void 0;
+          var lsc = 0;
+
+          while (i < tokensLength) {
+            if (l = checkS(i)) tokens[i].sc_child = 1;else if (l = checkCommentML(i)) tokens[i].sc_child = 2;else break;
+            i += l;
+            lsc += l;
+          }
+
+          return lsc || 0;
+        }
+
+        /**
+         * Get node with spaces and comments
+         * @return {Array}
+         */
+        function getSC() {
+          var sc = [];
+
+          if (pos >= tokensLength) return sc;
+
+          while (pos < tokensLength) {
+            var childType = tokens[pos].sc_child;
+            if (childType === 1) sc.push(getS());else if (childType === 2) sc.push(getCommentML());else break;
+          }
+
+          return sc;
+        }
+
+        /**
+         * Check if token is part of a hexadecimal number (e.g. `#fff`) inside
+         *      a simple selector
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkShash(i) {
+          var l;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.NumberSign) return 0;
+
+          return (l = checkIdent(i + 1)) ? l + 1 : 0;
+        }
+
+        /**
+         * Get node with a hexadecimal number (e.g. `#fff`) inside a simple
+         *      selector
+         * @return {Node}
+         */
+        function getShash() {
+          var type = NodeType.ShashType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          pos++;
+
+          var ident = getIdent();
+          content.push(ident);
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is part of a string (text wrapped in quotes)
+         * @param {Number} i Token's index number
+         * @return {Number} `1` if token is part of a string, `0` if not
+         */
+        function checkString(i) {
+          if (i >= tokensLength) {
+            return 0;
+          }
+
+          if (tokens[i].type === TokenType.StringSQ || tokens[i].type === TokenType.StringDQ) {
+            return 1;
+          }
+
+          return 0;
+        }
+
+        /**
+         * Get string's node
+         * @return {Array} `['string', x]` where `x` is a string (including
+         *      quotes).
+         */
+        function getString() {
+          var type = NodeType.StringType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = token.value;
+
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Validate stylesheet: it should consist of any number (0 or more) of
+         * rulesets (sets of rules with selectors), @-rules, whitespaces or
+         * comments.
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkStylesheet(i) {
+          var start = i;
+          var l = void 0;
+
+          // Check every token:
+          while (i < tokensLength) {
+            if (l = checkSC(i)) tokens[i].stylesheet_child = 1;else if (l = checkRuleset(i)) tokens[i].stylesheet_child = 2;else if (l = checkAtrule(i)) tokens[i].stylesheet_child = 3;else if (l = checkDeclDelim(i)) tokens[i].stylesheet_child = 4;else throwError(i);
+
+            i += l;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * @return {Array} `['stylesheet', x]` where `x` is all stylesheet's
+         *      nodes.
+         */
+        function getStylesheet() {
+          var type = NodeType.StylesheetType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+          var childType = void 0;
+
+          while (pos < tokensLength) {
+            childType = tokens[pos].stylesheet_child;
+            if (childType === 1) content = content.concat(getSC());else if (childType === 2) content.push(getRuleset());else if (childType === 3) content.push(getAtrule());else if (childType === 4) content.push(getDeclDelim());
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkTset(i) {
+          var l;
+
+          if (l = checkVhash(i)) tokens[i].tset_child = 1;else if (l = checkAny(i)) tokens[i].tset_child = 2;else if (l = checkSC(i)) tokens[i].tset_child = 3;else if (l = checkOperator(i)) tokens[i].tset_child = 4;
+
+          return l;
+        }
+
+        /**
+         * @return {Array}
+         */
+        function getTset() {
+          var childType = tokens[pos].tset_child;
+          if (childType === 1) return getVhash();else if (childType === 2) return getAny();else if (childType === 3) return getSC();else if (childType === 4) return getOperator();
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkTsets(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          while (l = checkTset(i)) {
+            i += l;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * @return {Array}
+         */
+        function getTsets() {
+          var x = [];
+          var t = void 0;
+
+          while (checkTset(pos)) {
+            t = getTset();
+            if (typeof t.content === 'string') x.push(t);else x = x.concat(t);
+          }
+
+          return x;
+        }
+
+        /**
+         * Check if token is an unary (arithmetical) sign (`+` or `-`)
+         * @param {Number} i Token's index number
+         * @return {Number} `1` if token is an unary sign, `0` if not
+         */
+        function checkUnary(i) {
+          if (i >= tokensLength) {
+            return 0;
+          }
+
+          if (tokens[i].type === TokenType.HyphenMinus || tokens[i].type === TokenType.PlusSign) {
+            return 1;
+          }
+
+          return 0;
+        }
+
+        /**
+         * Get node with an unary (arithmetical) sign (`+` or `-`)
+         * @return {Array} `['unary', x]` where `x` is an unary sign
+         *      converted to string.
+         */
+        function getUnary() {
+          var type = NodeType.OperatorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = token.value;
+
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is a unicode range (single or multiple <urange> nodes)
+         * @param {number} i Token's index
+         * @return {number} Unicode range node's length
+         */
+        function checkUnicodeRange(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkUrange(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var spaceBefore = checkSC(i);
+            var comma = checkDelim(i + spaceBefore);
+            if (!comma) break;
+
+            var spaceAfter = checkSC(i + spaceBefore + comma);
+            if (l = checkUrange(i + spaceBefore + comma + spaceAfter)) {
+              i += spaceBefore + comma + spaceAfter + l;
+            } else break;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * Get a unicode range node
+         * @return {Node}
+         */
+        function getUnicodeRange() {
+          var type = NodeType.UnicodeRangeType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          while (pos < tokensLength) {
+            if (checkSC(pos)) content = content.concat(getSC());else if (checkDelim(pos)) content.push(getDelim());else if (checkUrange(pos)) content.push(getUrange());else break;
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is a u-range (part of a unicode-range)
+         * (1) `U+416`
+         * (2) `U+400-4ff`
+         * (3) `U+4??`
+         * @param {number} i Token's index
+         * @return {number} Urange node's length
+         */
+        function checkUrange(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          // Check for unicode prefix (u+ or U+)
+          if (tokens[i].value === 'U' || tokens[i].value === 'u') i += 1;else return 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].value === '+') i += 1;else return 0;
+
+          while (i < tokensLength) {
+            if (l = checkIdent(i)) i += l;else if (l = checkNumber(i)) i += l;else if (l = checkUnary(i)) i += l;else if (l = _checkUnicodeWildcard(i)) i += l;else break;
+          }
+
+          tokens[start].urangeEnd = i - 1;
+
+          return i - start;
+        }
+
+        /**
+         * Get a u-range node (part of a unicode-range)
+         * @return {Node}
+         */
+        function getUrange() {
+          var startPos = pos;
+          var type = NodeType.UrangeType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          content = joinValues(startPos, tokens[startPos].urangeEnd);
+          pos = tokens[startPos].urangeEnd + 1;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check for unicode wildcard characters `?`
+         * @param {number} i Token's index
+         * @return {number} Wildcard length
+         */
+        function _checkUnicodeWildcard(i) {
+          var start = i;
+
+          if (i >= tokensLength) return 0;
+
+          while (i < tokensLength) {
+            if (tokens[i].type === TokenType.QuestionMark) i += 1;else break;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * Check if token is part of URI (e.g. `url('/css/styles.css')`)
+         * @param {Number} i Token's index number
+         * @return {Number} Length of URI
+         */
+        function checkUri(i) {
+          var start = i;
+
+          if (i >= tokensLength || tokens[i].value !== 'url') return 0;
+          i += 1;
+          if (i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          return tokens[i].right - start + 1;
+        }
+
+        /**
+         * Get node with URI
+         * @return {Array} `['uri', x]` where `x` is URI's nodes (without `url`
+         *      and braces, e.g. `['string', ''/css/styles.css'']`).
+         */
+        function getUri() {
+          var startPos = pos;
+          var uriExcluding = {};
+          var uri = void 0;
+          var l = void 0;
+          var raw = void 0;
+
+          var rawContent = void 0;
+          var t = void 0;
+
+          pos += 2;
+
+          uriExcluding[TokenType.Space] = 1;
+          uriExcluding[TokenType.Tab] = 1;
+          uriExcluding[TokenType.Newline] = 1;
+          uriExcluding[TokenType.LeftParenthesis] = 1;
+          uriExcluding[TokenType.RightParenthesis] = 1;
+
+          if (checkUri1(pos)) {
+            uri = [].concat(getSC()).concat([getString()]).concat(getSC());
+          } else {
+            uri = checkSC(pos) ? getSC() : [];
+            l = checkExcluding(uriExcluding, pos);
+            rawContent = joinValues(pos, pos + l);
+            t = tokens[pos];
+            raw = newNode(NodeType.RawType, rawContent, t.ln, t.col);
+
+            uri.push(raw);
+
+            pos += l + 1;
+
+            if (checkSC(pos)) uri = uri.concat(getSC());
+          }
+
+          t = tokens[startPos];
+          var line = t.ln;
+          var column = t.col;
+          var end = getLastPosition(uri, line, column, 1);
+          pos++;
+
+          return newNode(NodeType.UriType, uri, line, column, end);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkUri1(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].type !== TokenType.StringDQ && tokens[i].type !== TokenType.StringSQ) return 0;
+
+          i++;
+
+          if (l = checkSC(i)) i += l;
+
+          return i - start;
+        }
+
+        /**
+         * Check if token is part of a value
+         * @param {Number} i Token's index number
+         * @return {Number} Length of the value
+         */
+        function checkValue(i) {
+          var start = i;
+          var l = void 0;
+          var s = void 0;
+          var _i = void 0;
+
+          while (i < tokensLength) {
+            s = checkSC(i);
+            _i = i + s;
+
+            if (l = _checkValue(_i)) i += l + s;else break;
+          }
+
+          tokens[start].value_end = i;
+          return i - start;
+        }
+
+        /**
+         * @return {Array}
+         */
+        function getValue() {
+          var startPos = pos;
+          var end = tokens[pos].value_end;
+          var x = [];
+
+          while (pos < end) {
+            if (tokens[pos].value_child) x.push(_getValue());else x = x.concat(getSC());
+          }
+
+          var t = tokens[startPos];
+          return newNode(NodeType.ValueType, x, t.ln, t.col);
+        }
+
+        /**
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function _checkValue(i) {
+          var l;
+
+          if (l = checkProgid(i)) tokens[i].value_child = 1;else if (l = checkVhash(i)) tokens[i].value_child = 2;else if (l = checkAny(i)) tokens[i].value_child = 3;else if (l = checkOperator(i)) tokens[i].value_child = 4;else if (l = checkImportant(i)) tokens[i].value_child = 5;
+
+          return l;
+        }
+
+        /**
+         * @return {Array}
+         */
+        function _getValue() {
+          var childType = tokens[pos].value_child;
+          if (childType === 1) return getProgid();else if (childType === 2) return getVhash();else if (childType === 3) return getAny();else if (childType === 4) return getOperator();else if (childType === 5) return getImportant();
+        }
+
+        /**
+         * Check if token is part of a hexadecimal number (e.g. `#fff`) inside
+         *      some value
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkVhash(i) {
+          var l;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.NumberSign) return 0;
+
+          return (l = checkNmName2(i + 1)) ? l + 1 : 0;
+        }
+
+        /**
+         * Get node with a hexadecimal number (e.g. `#fff`) inside some value
+         * @return {Array} `['vhash', x]` where `x` is a hexadecimal number
+         *      converted to string (without `#`, e.g. `'fff'`).
+         */
+        function getVhash() {
+          var type = NodeType.VhashType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = void 0;
+
+          pos++;
+
+          content = getNmName2();
+          var end = getLastPosition(content, line, column + 1);
+          return newNode(type, content, line, column, end);
+        }
+
+        function checkSelectorsGroup(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var l = void 0;
+
+          if (l = checkSelector(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var sb = checkSC(i);
+            var c = checkDelim(i + sb);
+            if (!c) break;
+            var sa = checkSC(i + sb + c);
+            if (l = checkSelector(i + sb + c + sa)) i += sb + c + sa + l;else break;
+          }
+
+          tokens[start].selectorsGroupEnd = i;
+          return i - start;
+        }
+
+        function getSelectorsGroup() {
+          var selectorsGroup = [];
+          var selectorsGroupEnd = tokens[pos].selectorsGroupEnd;
+
+          selectorsGroup.push(getSelector());
+
+          while (pos < selectorsGroupEnd) {
+            selectorsGroup = selectorsGroup.concat(getSC());
+            selectorsGroup.push(getDelim());
+            selectorsGroup = selectorsGroup.concat(getSC());
+            selectorsGroup.push(getSelector());
+          }
+
+          return selectorsGroup;
+        }
+
+        function checkSelector(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var l = void 0;
+
+          if (l = checkCompoundSelector(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var sb = checkSC(i);
+            var c = checkCombinator(i + sb);
+            if (!sb && !c) break;
+            var sa = checkSC(i + sb + c);
+            if (l = checkCompoundSelector(i + sb + c + sa)) i += sb + c + sa + l;else break;
+          }
+
+          tokens[start].selectorEnd = i;
+          return i - start;
+        }
+
+        function getSelector() {
+          var type = NodeType.SelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var selectorEnd = token.selectorEnd;
+          var content = void 0;
+
+          content = getCompoundSelector();
+
+          while (pos < selectorEnd) {
+            content = content.concat(getSC());
+            if (checkCombinator(pos)) content.push(getCombinator());
+            content = content.concat(getSC());
+            content = content.concat(getCompoundSelector());
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkCompoundSelector(i) {
+          var l = void 0;
+
+          if (l = checkCompoundSelector1(i)) {
+            tokens[i].compoundSelectorType = 1;
+          } else if (l = checkCompoundSelector2(i)) {
+            tokens[i].compoundSelectorType = 2;
+          }
+
+          return l;
+        }
+
+        function getCompoundSelector() {
+          var type = tokens[pos].compoundSelectorType;
+          if (type === 1) return getCompoundSelector1();
+          if (type === 2) return getCompoundSelector2();
+        }
+
+        function checkCompoundSelector1(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+
+          var l = void 0;
+          if (l = checkUniversalSelector(i) || checkTypeSelector(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var _l2 = checkShash(i) || checkClass(i) || checkAttributeSelector(i) || checkPseudo(i);
+            if (_l2) i += _l2;else break;
+          }
+
+          tokens[start].compoundSelectorEnd = i;
+
+          return i - start;
+        }
+
+        function getCompoundSelector1() {
+          var sequence = [];
+          var compoundSelectorEnd = tokens[pos].compoundSelectorEnd;
+
+          if (checkUniversalSelector(pos)) sequence.push(getUniversalSelector());else sequence.push(getTypeSelector());
+
+          while (pos < compoundSelectorEnd) {
+            if (checkShash(pos)) sequence.push(getShash());else if (checkClass(pos)) sequence.push(getClass());else if (checkAttributeSelector(pos)) sequence.push(getAttributeSelector());else if (checkPseudo(pos)) sequence.push(getPseudo());
+          }
+
+          return sequence;
+        }
+
+        function checkCompoundSelector2(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+
+          while (i < tokensLength) {
+            var l = checkShash(i) || checkClass(i) || checkAttributeSelector(i) || checkPseudo(i);
+            if (l) i += l;else break;
+          }
+
+          tokens[start].compoundSelectorEnd = i;
+
+          return i - start;
+        }
+
+        function getCompoundSelector2() {
+          var sequence = [];
+          var compoundSelectorEnd = tokens[pos].compoundSelectorEnd;
+
+          while (pos < compoundSelectorEnd) {
+            if (checkShash(pos)) sequence.push(getShash());else if (checkClass(pos)) sequence.push(getClass());else if (checkAttributeSelector(pos)) sequence.push(getAttributeSelector());else if (checkPseudo(pos)) sequence.push(getPseudo());
+          }
+
+          return sequence;
+        }
+
+        function checkUniversalSelector(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var l = void 0;
+
+          if (l = checkNamePrefix(i)) i += l;
+
+          if (tokens[i].type === TokenType.Asterisk) i++;else return 0;
+
+          return i - start;
+        }
+
+        function getUniversalSelector() {
+          var type = NodeType.UniversalSelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+          var end = void 0;
+
+          if (checkNamePrefix(pos)) {
+            content.push(getNamePrefix());
+            end = getLastPosition(content, line, column, 1);
+          }
+
+          pos++;
+
+          return newNode(type, content, line, column, end);
+        }
+
+        function checkTypeSelector(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var l = void 0;
+
+          if (l = checkNamePrefix(i)) i += l;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        function getTypeSelector() {
+          var type = NodeType.TypeSelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          if (checkNamePrefix(pos)) content.push(getNamePrefix());
+
+          content.push(getIdent());
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkAttributeSelector(i) {
+          var l = void 0;
+          if (l = checkAttributeSelector1(i)) tokens[i].attributeSelectorType = 1;else if (l = checkAttributeSelector2(i)) tokens[i].attributeSelectorType = 2;
+
+          return l;
+        }
+
+        function getAttributeSelector() {
+          var type = tokens[pos].attributeSelectorType;
+          if (type === 1) return getAttributeSelector1();else return getAttributeSelector2();
+        }
+
+        /**
+         * (1) `[panda=nani]`
+         * (2) `[panda='nani']`
+         * (3) `[panda='nani' i]`
+         *
+         */
+        function checkAttributeSelector1(i) {
+          var start = i;
+
+          if (tokens[i].type === TokenType.LeftSquareBracket) i++;else return 0;
+
+          var l = void 0;
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkAttributeName(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkAttributeMatch(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkAttributeValue(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkAttributeFlags(i)) {
+            i += l;
+            if (l = checkSC(i)) i += l;
+          }
+
+          if (tokens[i].type === TokenType.RightSquareBracket) i++;else return 0;
+
+          return i - start;
+        }
+
+        function getAttributeSelector1() {
+          var type = NodeType.AttributeSelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `[`.
+          pos++;
+
+          content = content.concat(getSC());
+          content.push(getAttributeName());
+          content = content.concat(getSC());
+          content.push(getAttributeMatch());
+          content = content.concat(getSC());
+          content.push(getAttributeValue());
+          content = content.concat(getSC());
+
+          if (checkAttributeFlags(pos)) {
+            content.push(getAttributeFlags());
+            content = content.concat(getSC());
+          }
+
+          // Skip `]`.
+          pos++;
+
+          var end = getLastPosition(content, line, column, 1);
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
+         * (1) `[panda]`
+         */
+        function checkAttributeSelector2(i) {
+          var start = i;
+
+          if (tokens[i].type === TokenType.LeftSquareBracket) i++;else return 0;
+
+          var l = void 0;
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkAttributeName(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].type === TokenType.RightSquareBracket) i++;else return 0;
+
+          return i - start;
+        }
+
+        function getAttributeSelector2() {
+          var type = NodeType.AttributeSelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `[`.
+          pos++;
+
+          content = content.concat(getSC());
+          content.push(getAttributeName());
+          content = content.concat(getSC());
+
+          // Skip `]`.
+          pos++;
+
+          var end = getLastPosition(content, line, column, 1);
+          return newNode(type, content, line, column, end);
+        }
+
+        function checkAttributeName(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkNamePrefix(i)) i += l;
+
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        function getAttributeName() {
+          var type = NodeType.AttributeNameType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          if (checkNamePrefix(pos)) content.push(getNamePrefix());
+          content.push(getIdent());
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkAttributeMatch(i) {
+          var l = void 0;
+          if (l = checkAttributeMatch1(i)) tokens[i].attributeMatchType = 1;else if (l = checkAttributeMatch2(i)) tokens[i].attributeMatchType = 2;
+
+          return l;
+        }
+
+        function getAttributeMatch() {
+          var type = tokens[pos].attributeMatchType;
+          if (type === 1) return getAttributeMatch1();else return getAttributeMatch2();
+        }
+
+        function checkAttributeMatch1(i) {
+          var start = i;
+
+          var type = tokens[i].type;
+          if (type === TokenType.Tilde || type === TokenType.VerticalLine || type === TokenType.CircumflexAccent || type === TokenType.DollarSign || type === TokenType.Asterisk) i++;else return 0;
+
+          if (tokens[i].type === TokenType.EqualsSign) i++;else return 0;
+
+          return i - start;
+        }
+
+        function getAttributeMatch1() {
+          var type = NodeType.AttributeMatchType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = tokens[pos].value + tokens[pos + 1].value;
+          pos += 2;
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkAttributeMatch2(i) {
+          if (tokens[i].type === TokenType.EqualsSign) return 1;else return 0;
+        }
+
+        function getAttributeMatch2() {
+          var type = NodeType.AttributeMatchType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = '=';
+
+          pos++;
+          return newNode(type, content, line, column);
+        }
+
+        function checkAttributeValue(i) {
+          return checkString(i) || checkIdent(i);
+        }
+
+        function getAttributeValue() {
+          var type = NodeType.AttributeValueType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          if (checkString(pos)) content.push(getString());else content.push(getIdent());
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkAttributeFlags(i) {
+          return checkIdent(i);
+        }
+
+        function getAttributeFlags() {
+          var type = NodeType.AttributeFlagsType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getIdent()];
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkNamePrefix(i) {
+          if (i >= tokensLength) return 0;
+
+          var l = void 0;
+          if (l = checkNamePrefix1(i)) tokens[i].namePrefixType = 1;else if (l = checkNamePrefix2(i)) tokens[i].namePrefixType = 2;
+
+          return l;
+        }
+
+        function getNamePrefix() {
+          var type = tokens[pos].namePrefixType;
+          if (type === 1) return getNamePrefix1();else return getNamePrefix2();
+        }
+
+        /**
+         * (1) `panda|`
+         * (2) `panda<comment>|`
+         */
+        function checkNamePrefix1(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkNamespacePrefix(i)) i += l;else return 0;
+
+          if (l = checkCommentML(i)) i += l;
+
+          if (l = checkNamespaceSeparator(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        function getNamePrefix1() {
+          var type = NodeType.NamePrefixType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          content.push(getNamespacePrefix());
+
+          if (checkCommentML(pos)) content.push(getCommentML());
+
+          content.push(getNamespaceSeparator());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * (1) `|`
+         */
+        function checkNamePrefix2(i) {
+          return checkNamespaceSeparator(i);
+        }
+
+        function getNamePrefix2() {
+          var type = NodeType.NamePrefixType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getNamespaceSeparator()];
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * (1) `*`
+         * (2) `panda`
+         */
+        function checkNamespacePrefix(i) {
+          if (i >= tokensLength) return 0;
+
+          var l = void 0;
+
+          if (tokens[i].type === TokenType.Asterisk) return 1;else if (l = checkIdent(i)) return l;else return 0;
+        }
+
+        function getNamespacePrefix() {
+          var type = NodeType.NamespacePrefixType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          if (tokens[pos].type === TokenType.Asterisk) {
+            var asteriskNode = newNode(NodeType.IdentType, '*', line, column);
+            content.push(asteriskNode);
+            pos++;
+          } else if (checkIdent(pos)) content.push(getIdent());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * (1) `|`
+         */
+        function checkNamespaceSeparator(i) {
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].type !== TokenType.VerticalLine) return 0;
+
+          // Return false if `|=` - [attr|=value]
+          if (tokens[i + 1] && tokens[i + 1].type === TokenType.EqualsSign) return 0;
+
+          return 1;
+        }
+
+        function getNamespaceSeparator() {
+          var type = NodeType.NamespaceSeparatorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = '|';
+
+          pos++;
+          return newNode(type, content, line, column);
+        }
+
+        module.exports = function (_tokens, context) {
+          tokens = _tokens;
+          tokensLength = tokens.length;
+          pos = 0;
+
+          return contexts[context]();
+        };
+
+/***/ },
+/* 15 */
+/***/ function(module, exports) {
+
+        'use strict';
+
+        module.exports = {
+          ArgumentsType: 'arguments',
+          AtkeywordType: 'atkeyword',
+          AtruleType: 'atrule',
+          AttributeSelectorType: 'attributeSelector',
+          AttributeNameType: 'attributeName',
+          AttributeFlagsType: 'attributeFlags',
+          AttributeMatchType: 'attributeMatch',
+          AttributeValueType: 'attributeValue',
+          BlockType: 'block',
+          BracketsType: 'brackets',
+          ClassType: 'class',
+          CombinatorType: 'combinator',
+          CommentMLType: 'multilineComment',
+          CommentSLType: 'singlelineComment',
+          ConditionType: 'condition',
+          ConditionalStatementType: 'conditionalStatement',
+          DeclarationType: 'declaration',
+          DeclDelimType: 'declarationDelimiter',
+          DefaultType: 'default',
+          DelimType: 'delimiter',
+          DimensionType: 'dimension',
+          EscapedStringType: 'escapedString',
+          ExtendType: 'extend',
+          ExpressionType: 'expression',
+          FunctionType: 'function',
+          GlobalType: 'global',
+          IdentType: 'ident',
+          ImportantType: 'important',
+          IncludeType: 'include',
+          InterpolationType: 'interpolation',
+          InterpolatedVariableType: 'interpolatedVariable',
+          KeyframesSelectorType: 'keyframesSelector',
+          LoopType: 'loop',
+          MixinType: 'mixin',
+          NamePrefixType: 'namePrefix',
+          NamespacePrefixType: 'namespacePrefix',
+          NamespaceSeparatorType: 'namespaceSeparator',
+          NumberType: 'number',
+          OperatorType: 'operator',
+          OptionalType: 'optional',
+          ParenthesesType: 'parentheses',
+          ParentSelectorType: 'parentSelector',
+          ParentSelectorExtensionType: 'parentSelectorExtension',
+          PercentageType: 'percentage',
+          PlaceholderType: 'placeholder',
+          ProgidType: 'progid',
+          PropertyType: 'property',
+          PropertyDelimType: 'propertyDelimiter',
+          PseudocType: 'pseudoClass',
+          PseudoeType: 'pseudoElement',
+          RawType: 'raw',
+          RulesetType: 'ruleset',
+          SType: 'space',
+          SelectorType: 'selector',
+          ShashType: 'id',
+          StringType: 'string',
+          StylesheetType: 'stylesheet',
+          TypeSelectorType: 'typeSelector',
+          UnicodeRangeType: 'unicodeRange',
+          UniversalSelectorType: 'universalSelector',
+          UriType: 'uri',
+          UrangeType: 'urange',
+          ValueType: 'value',
+          VariableType: 'variable',
+          VariablesListType: 'variablesList',
+          VhashType: 'color'
+        };
+
+/***/ },
+/* 16 */
+/***/ function(module, exports, __webpack_require__) {
+
+        'use strict';
+
+        module.exports = function (css, tabSize) {
+          var TokenType = __webpack_require__(13);
+
+          var tokens = [];
+          var urlMode = false;
+          var blockMode = 0;
+          var pos = 0;
+          var tn = 0;
+          var ln = 1;
+          var col = 1;
+          var cssLength = 0;
+
+          var Punctuation = {
+            ' ': TokenType.Space,
+            '\n': TokenType.Newline,
+            '\r': TokenType.Newline,
+            '\t': TokenType.Tab,
+            '!': TokenType.ExclamationMark,
+            '"': TokenType.QuotationMark,
+            '#': TokenType.NumberSign,
+            '$': TokenType.DollarSign,
+            '%': TokenType.PercentSign,
+            '&': TokenType.Ampersand,
+            '\'': TokenType.Apostrophe,
+            '(': TokenType.LeftParenthesis,
+            ')': TokenType.RightParenthesis,
+            '*': TokenType.Asterisk,
+            '+': TokenType.PlusSign,
+            ',': TokenType.Comma,
+            '-': TokenType.HyphenMinus,
+            '.': TokenType.FullStop,
+            '/': TokenType.Solidus,
+            ':': TokenType.Colon,
+            ';': TokenType.Semicolon,
+            '<': TokenType.LessThanSign,
+            '=': TokenType.EqualsSign,
+            '>': TokenType.GreaterThanSign,
+            '?': TokenType.QuestionMark,
+            '@': TokenType.CommercialAt,
+            '[': TokenType.LeftSquareBracket,
+            ']': TokenType.RightSquareBracket,
+            '^': TokenType.CircumflexAccent,
+            '_': TokenType.LowLine,
+            '{': TokenType.LeftCurlyBracket,
+            '|': TokenType.VerticalLine,
+            '}': TokenType.RightCurlyBracket,
+            '~': TokenType.Tilde
+          };
+
+          /**
+           * Add a token to the token list
+           * @param {string} type
+           * @param {string} value
+           */
+          function pushToken(type, value, column) {
+            tokens.push({
+              tn: tn++,
+              ln: ln,
+              col: column,
+              type: type,
+              value: value
+            });
+          }
+
+          /**
+           * Check if a character is a decimal digit
+           * @param {string} c Character
+           * @returns {boolean}
+           */
+          function isDecimalDigit(c) {
+            return '0123456789'.indexOf(c) >= 0;
+          }
+
+          /**
+           * Parse spaces
+           * @param {string} css Unparsed part of CSS string
+           */
+          function parseSpaces(css) {
+            var start = pos;
+
+            // Read the string until we meet a non-space character:
+            for (; pos < cssLength; pos++) {
+              if (css.charAt(pos) !== ' ') break;
+            }
+
+            // Add a substring containing only spaces to tokens:
+            pushToken(TokenType.Space, css.substring(start, pos--), col);
+            col += pos - start;
+          }
+
+          /**
+           * Parse a string within quotes
+           * @param {string} css Unparsed part of CSS string
+           * @param {string} q Quote (either `'` or `"`)
+           */
+          function parseString(css, q) {
+            var start = pos;
+
+            // Read the string until we meet a matching quote:
+            for (pos++; pos < cssLength; pos++) {
+              // Skip escaped quotes:
+              if (css.charAt(pos) === '\\') pos++;else if (css.charAt(pos) === q) break;
+            }
+
+            // Add the string (including quotes) to tokens:
+            pushToken(q === '"' ? TokenType.StringDQ : TokenType.StringSQ, css.substring(start, pos + 1), col);
+            col += pos - start;
+          }
+
+          /**
+           * Parse numbers
+           * @param {string} css Unparsed part of CSS string
+           */
+          function parseDecimalNumber(css) {
+            var start = pos;
+
+            // Read the string until we meet a character that's not a digit:
+            for (; pos < cssLength; pos++) {
+              if (!isDecimalDigit(css.charAt(pos))) break;
+            }
+
+            // Add the number to tokens:
+            pushToken(TokenType.DecimalNumber, css.substring(start, pos--), col);
+            col += pos - start;
+          }
+
+          /**
+           * Parse identifier
+           * @param {string} css Unparsed part of CSS string
+           */
+          function parseIdentifier(css) {
+            var start = pos;
+
+            // Skip all opening slashes:
+            while (css.charAt(pos) === '/') {
+              pos++;
+            } // Read the string until we meet a punctuation mark:
+            for (; pos < cssLength; pos++) {
+              // Skip all '\':
+              if (css.charAt(pos) === '\\') pos++;else if (Punctuation[css.charAt(pos)]) break;
+            }
+
+            var ident = css.substring(start, pos--);
+
+            // Enter url mode if parsed substring is `url`:
+            urlMode = urlMode || ident === 'url';
+
+            // Add identifier to tokens:
+            pushToken(TokenType.Identifier, ident, col);
+            col += pos - start;
+          }
+
+          /**
+          * Parse a multiline comment
+          * @param {string} css Unparsed part of CSS string
+          */
+          function parseMLComment(css) {
+            var start = pos;
+
+            // Read the string until we meet `*/`.
+            // Since we already know first 2 characters (`/*`), start reading
+            // from `pos + 2`:
+            for (pos = pos + 2; pos < cssLength; pos++) {
+              if (css.charAt(pos) === '*' && css.charAt(pos + 1) === '/') {
+                pos++;
+                break;
+              }
+            }
+
+            // Add full comment (including `/*` and `*/`) to the list of tokens:
+            var comment = css.substring(start, pos + 1);
+            pushToken(TokenType.CommentML, comment, col);
+
+            var newlines = comment.split('\n');
+            if (newlines.length > 1) {
+              ln += newlines.length - 1;
+              col = newlines[newlines.length - 1].length;
+            } else {
+              col += pos - start;
+            }
+          }
+
+          function parseSLComment(css) {
+            var start = pos;
+
+            // Read the string until we meet line break.
+            // Since we already know first 2 characters (`//`), start reading
+            // from `pos + 2`:
+            for (pos += 2; pos < cssLength; pos++) {
+              if (css.charAt(pos) === '\n' || css.charAt(pos) === '\r') {
+                break;
+              }
+            }
+
+            // Add comment (including `//` and line break) to the list of tokens:
+            pushToken(TokenType.CommentSL, css.substring(start, pos--), col);
+            col += pos - start;
+          }
+
+          /**
+           * Convert a CSS string to a list of tokens
+           * @param {string} css CSS string
+           * @returns {Array} List of tokens
+           * @private
+           */
+          function getTokens(css) {
+            var c; // Current character
+            var cn; // Next character
+
+            cssLength = css.length;
+
+            // Parse string, character by character:
+            for (pos = 0; pos < cssLength; col++, pos++) {
+              c = css.charAt(pos);
+              cn = css.charAt(pos + 1);
+
+              // If we meet `/*`, it's a start of a multiline comment.
+              // Parse following characters as a multiline comment:
+              if (c === '/' && cn === '*') {
+                parseMLComment(css);
+              }
+
+              // If we meet `//` and it is not a part of url:
+              else if (!urlMode && c === '/' && cn === '/') {
+                  // If we're currently inside a block, treat `//` as a start
+                  // of identifier. Else treat `//` as a start of a single-line
+                  // comment:
+                  if (blockMode > 0) parseIdentifier(css);else parseSLComment(css);
+                }
+
+                // If current character is a double or single quote, it's a start
+                // of a string:
+                else if (c === '"' || c === "'") {
+                    parseString(css, c);
+                  }
+
+                  // If current character is a space:
+                  else if (c === ' ') {
+                      parseSpaces(css);
+                    }
+
+                    // If current character is a punctuation mark:
+                    else if (Punctuation[c]) {
+                        // Add it to the list of tokens:
+                        pushToken(Punctuation[c], c, col);
+                        if (c === '\n' || c === '\r') {
+                          ln++;
+                          col = 0;
+                        } // Go to next line
+                        else if (c === ')') urlMode = false; // Exit url mode
+                          else if (c === '{') blockMode++; // Enter a block
+                            else if (c === '}') blockMode--; // Exit a block
+                              else if (c === '\t' && tabSize > 1) col += tabSize - 1;
+                      }
+
+                      // If current character is a decimal digit:
+                      else if (isDecimalDigit(c)) {
+                          parseDecimalNumber(css);
+                        }
+
+                        // If current character is anything else:
+                        else {
+                            parseIdentifier(css);
+                          }
+            }
+
+            return tokens;
+          }
+
+          return getTokens(css);
+        };
+
+/***/ },
+/* 17 */
+/***/ function(module, exports, __webpack_require__) {
+
+        'use strict';
+
+        exports.__esModule = true;
+        exports.default = {
+          mark: __webpack_require__(18),
+          parse: __webpack_require__(19),
+          stringify: __webpack_require__(6),
+          tokenizer: __webpack_require__(20)
+        };
+        module.exports = exports['default'];
+
+/***/ },
+/* 18 */
+/***/ function(module, exports, __webpack_require__) {
+
+        'use strict';
+
+        var TokenType = __webpack_require__(13);
+
+        module.exports = function () {
+          /**
+          * Mark whitespaces and comments
+          */
+          function markSC(tokens) {
+            var tokensLength = tokens.length;
+            var ws = -1; // Flag for whitespaces
+            var sc = -1; // Flag for whitespaces and comments
+            var t = void 0; // Current token
+
+            // For every token in the token list, mark spaces and line breaks
+            // as spaces (set both `ws` and `sc` flags). Mark multiline comments
+            // with `sc` flag.
+            // If there are several spaces or tabs or line breaks or multiline
+            // comments in a row, group them: take the last one's index number
+            // and save it to the first token in the group as a reference:
+            // e.g., `ws_last = 7` for a group of whitespaces or `sc_last = 9`
+            // for a group of whitespaces and comments.
+            for (var i = 0; i < tokensLength; i++) {
+              t = tokens[i];
+              switch (t.type) {
+                case TokenType.Space:
+                case TokenType.Tab:
+                case TokenType.Newline:
+                  t.ws = true;
+                  t.sc = true;
+
+                  if (ws === -1) ws = i;
+                  if (sc === -1) sc = i;
+
+                  break;
+                case TokenType.CommentML:
+                case TokenType.CommentSL:
+                  if (ws !== -1) {
+                    tokens[ws].ws_last = i - 1;
+                    ws = -1;
+                  }
+
+                  t.sc = true;
+
+                  break;
+                default:
+                  if (ws !== -1) {
+                    tokens[ws].ws_last = i - 1;
+                    ws = -1;
+                  }
+
+                  if (sc !== -1) {
+                    tokens[sc].sc_last = i - 1;
+                    sc = -1;
+                  }
+              }
+            }
+
+            if (ws !== -1) tokens[ws].ws_last = i - 1;
+            if (sc !== -1) tokens[sc].sc_last = i - 1;
+          }
+
+          /**
+          * Pair brackets
+          */
+          function markBrackets(tokens) {
+            var tokensLength = tokens.length;
+            var ps = []; // Parentheses
+            var sbs = []; // Square brackets
+            var cbs = []; // Curly brackets
+            var t = void 0; // Current token
+
+            // For every token in the token list, if we meet an opening (left)
+            // bracket, push its index number to a corresponding array.
+            // If we then meet a closing (right) bracket, look at the corresponding
+            // array. If there are any elements (records about previously met
+            // left brackets), take a token of the last left bracket (take
+            // the last index number from the array and find a token with
+            // this index number) and save right bracket's index as a reference:
+            for (var i = 0; i < tokensLength; i++) {
+              t = tokens[i];
+              switch (t.type) {
+                case TokenType.LeftParenthesis:
+                  ps.push(i);
+                  break;
+                case TokenType.RightParenthesis:
+                  if (ps.length) {
+                    t.left = ps.pop();
+                    tokens[t.left].right = i;
+                  }
+                  break;
+                case TokenType.LeftSquareBracket:
+                  sbs.push(i);
+                  break;
+                case TokenType.RightSquareBracket:
+                  if (sbs.length) {
+                    t.left = sbs.pop();
+                    tokens[t.left].right = i;
+                  }
+                  break;
+                case TokenType.LeftCurlyBracket:
+                  cbs.push(i);
+                  break;
+                case TokenType.RightCurlyBracket:
+                  if (cbs.length) {
+                    t.left = cbs.pop();
+                    tokens[t.left].right = i;
+                  }
+                  break;
+              }
+            }
+          }
+
+          return function (tokens) {
+            markBrackets(tokens);
+            markSC(tokens);
+          };
+        }();
+
+/***/ },
+/* 19 */
+/***/ function(module, exports, __webpack_require__) {
+
+        'use strict';
+
+        var Node = __webpack_require__(1);
+        var NodeType = __webpack_require__(15);
+        var TokenType = __webpack_require__(13);
+
+        var tokens = void 0;
+        var tokensLength = void 0;
+        var pos = void 0;
+
+        var contexts = {
+          'arguments': function _arguments() {
+            return checkArguments(pos) && getArguments();
+          },
+          'atkeyword': function atkeyword() {
+            return checkAtkeyword(pos) && getAtkeyword();
+          },
+          'atrule': function atrule() {
+            return checkAtrule(pos) && getAtrule();
+          },
+          'block': function block() {
+            return checkBlock(pos) && getBlock();
+          },
+          'brackets': function brackets() {
+            return checkBrackets(pos) && getBrackets();
+          },
+          'class': function _class() {
+            return checkClass(pos) && getClass();
+          },
+          'combinator': function combinator() {
+            return checkCombinator(pos) && getCombinator();
+          },
+          'commentML': function commentML() {
+            return checkCommentML(pos) && getCommentML();
+          },
+          'commentSL': function commentSL() {
+            return checkCommentSL(pos) && getCommentSL();
+          },
+          'condition': function condition() {
+            return checkCondition(pos) && getCondition();
+          },
+          'conditionalStatement': function conditionalStatement() {
+            return checkConditionalStatement(pos) && getConditionalStatement();
+          },
+          'declaration': function declaration() {
+            return checkDeclaration(pos) && getDeclaration();
+          },
+          'declDelim': function declDelim() {
+            return checkDeclDelim(pos) && getDeclDelim();
+          },
+          'default': function _default() {
+            return checkDefault(pos) && getDefault();
+          },
+          'delim': function delim() {
+            return checkDelim(pos) && getDelim();
+          },
+          'dimension': function dimension() {
+            return checkDimension(pos) && getDimension();
+          },
+          'expression': function expression() {
+            return checkExpression(pos) && getExpression();
+          },
+          'extend': function extend() {
+            return checkExtend(pos) && getExtend();
+          },
+          'function': function _function() {
+            return checkFunction(pos) && getFunction();
+          },
+          'global': function global() {
+            return checkGlobal(pos) && getGlobal();
+          },
+          'ident': function ident() {
+            return checkIdent(pos) && getIdent();
+          },
+          'important': function important() {
+            return checkImportant(pos) && getImportant();
+          },
+          'include': function include() {
+            return checkInclude(pos) && getInclude();
+          },
+          'interpolation': function interpolation() {
+            return checkInterpolation(pos) && getInterpolation();
+          },
+          'loop': function loop() {
+            return checkLoop(pos) && getLoop();
+          },
+          'mixin': function mixin() {
+            return checkMixin(pos) && getMixin();
+          },
+          'namespace': function namespace() {
+            return checkNamespace(pos) && getNamespace();
+          },
+          'number': function number() {
+            return checkNumber(pos) && getNumber();
+          },
+          'operator': function operator() {
+            return checkOperator(pos) && getOperator();
+          },
+          'optional': function optional() {
+            return checkOptional(pos) && getOptional();
+          },
+          'parentheses': function parentheses() {
+            return checkParentheses(pos) && getParentheses();
+          },
+          'parentselector': function parentselector() {
+            return checkParentSelector(pos) && getParentSelector();
+          },
+          'percentage': function percentage() {
+            return checkPercentage(pos) && getPercentage();
+          },
+          'placeholder': function placeholder() {
+            return checkPlaceholder(pos) && getPlaceholder();
+          },
+          'progid': function progid() {
+            return checkProgid(pos) && getProgid();
+          },
+          'property': function property() {
+            return checkProperty(pos) && getProperty();
+          },
+          'propertyDelim': function propertyDelim() {
+            return checkPropertyDelim(pos) && getPropertyDelim();
+          },
+          'pseudoc': function pseudoc() {
+            return checkPseudoc(pos) && getPseudoc();
+          },
+          'pseudoe': function pseudoe() {
+            return checkPseudoe(pos) && getPseudoe();
+          },
+          'ruleset': function ruleset() {
+            return checkRuleset(pos) && getRuleset();
+          },
+          's': function s() {
+            return checkS(pos) && getS();
+          },
+          'selector': function selector() {
+            return checkSelector(pos) && getSelector();
+          },
+          'shash': function shash() {
+            return checkShash(pos) && getShash();
+          },
+          'string': function string() {
+            return checkString(pos) && getString();
+          },
+          'stylesheet': function stylesheet() {
+            return checkStylesheet(pos) && getStylesheet();
+          },
+          'typeSelector': function typeSelector() {
+            return checkTypeSelector(pos) && getTypeSelector();
+          },
+          'unary': function unary() {
+            return checkUnary(pos) && getUnary();
+          },
+          'unicodeRange': function unicodeRange() {
+            return checkUnicodeRange(pos) && getUnicodeRange();
+          },
+          'universalSelector': function universalSelector() {
+            return checkUniversalSelector(pos) && getUniversalSelector();
+          },
+          'urange': function urange() {
+            return checkUrange(pos) && getUrange();
+          },
+          'uri': function uri() {
+            return checkUri(pos) && getUri();
+          },
+          'value': function value() {
+            return checkValue(pos) && getValue();
+          },
+          'variable': function variable() {
+            return checkVariable(pos) && getVariable();
+          },
+          'variableslist': function variableslist() {
+            return checkVariablesList(pos) && getVariablesList();
+          },
+          'vhash': function vhash() {
+            return checkVhash(pos) && getVhash();
+          }
+        };
+
+        /**
          * Stop parsing and display error
          * @param {Number=} i Token's index number
-         */function throwError(i){var ln=i?tokens[i].ln:tokens[pos].ln;throw {line:ln,syntax:'scss'};} /**
-         * @param {Object} exclude
-         * @param {Number} i Token's index number
-         * @returns {Number}
-         */function checkExcluding(exclude,i){var start=i;while(i < tokensLength) {if(exclude[tokens[i++].type])break;}return i - start - 2;} /**
+         */
+        function throwError(i) {
+          var ln = i ? tokens[i].ln : tokens[pos].ln;
+
+          throw { line: ln, syntax: 'scss' };
+        }
+
+        /**
          * @param {Number} start
          * @param {Number} finish
          * @returns {String}
-         */function joinValues(start,finish){var s='';for(var i=start;i < finish + 1;i++) {s += tokens[i].value;}return s;} /**
+         */
+        function joinValues(start, finish) {
+          var s = '';
+
+          for (var i = start; i < finish + 1; i++) {
+            s += tokens[i].value;
+          }
+
+          return s;
+        }
+
+        /**
          * @param {Number} start
          * @param {Number} num
          * @returns {String}
-         */function joinValues2(start,num){if(start + num - 1 >= tokensLength)return;var s='';for(var i=0;i < num;i++) {s += tokens[start + i].value;}return s;}function getLastPosition(content,line,column,colOffset){return typeof content === 'string'?getLastPositionForString(content,line,column,colOffset):getLastPositionForArray(content,line,column,colOffset);}function getLastPositionForString(content,line,column,colOffset){var position=[];if(!content){position = [line,column];if(colOffset)position[1] += colOffset - 1;return position;}var lastLinebreak=content.lastIndexOf('\n');var endsWithLinebreak=lastLinebreak === content.length - 1;var splitContent=content.split('\n');var linebreaksCount=splitContent.length - 1;var prevLinebreak=linebreaksCount === 0 || linebreaksCount === 1?-1:content.length - splitContent[linebreaksCount - 1].length - 2; // Line:
-        var offset=endsWithLinebreak?linebreaksCount - 1:linebreaksCount;position[0] = line + offset; // Column:
-        if(endsWithLinebreak){offset = prevLinebreak !== -1?content.length - prevLinebreak:content.length - 1;}else {offset = linebreaksCount !== 0?content.length - lastLinebreak - column - 1:content.length - 1;}position[1] = column + offset;if(!colOffset)return position;if(endsWithLinebreak){position[0]++;position[1] = colOffset;}else {position[1] += colOffset;}return position;}function getLastPositionForArray(content,line,column,colOffset){var position;if(content.length === 0){position = [line,column];}else {var c=content[content.length - 1];if(c.hasOwnProperty('end')){position = [c.end.line,c.end.column];}else {position = getLastPosition(c.content,line,column);}}if(!colOffset)return position;if(tokens[pos - 1].type !== 'Newline'){position[1] += colOffset;}else {position[0]++;position[1] = 1;}return position;}function newNode(type,content,line,column,end){if(!end)end = getLastPosition(content,line,column);return new Node({type:type,content:content,start:{line:line,column:column},end:{line:end[0],column:end[1]},syntax:'scss'});} /**
+         */
+        function joinValues2(start, num) {
+          if (start + num - 1 >= tokensLength) return;
+
+          var s = '';
+
+          for (var i = 0; i < num; i++) {
+            s += tokens[start + i].value;
+          }
+
+          return s;
+        }
+
+        function getLastPosition(content, line, column, colOffset) {
+          return typeof content === 'string' ? getLastPositionForString(content, line, column, colOffset) : getLastPositionForArray(content, line, column, colOffset);
+        }
+
+        function getLastPositionForString(content, line, column, colOffset) {
+          var position = [];
+
+          if (!content) {
+            position = [line, column];
+            if (colOffset) position[1] += colOffset - 1;
+            return position;
+          }
+
+          var lastLinebreak = content.lastIndexOf('\n');
+          var endsWithLinebreak = lastLinebreak === content.length - 1;
+          var splitContent = content.split('\n');
+          var linebreaksCount = splitContent.length - 1;
+          var prevLinebreak = linebreaksCount === 0 || linebreaksCount === 1 ? -1 : content.length - splitContent[linebreaksCount - 1].length - 2;
+
+          // Line:
+          var offset = endsWithLinebreak ? linebreaksCount - 1 : linebreaksCount;
+          position[0] = line + offset;
+
+          // Column:
+          if (endsWithLinebreak) {
+            offset = prevLinebreak !== -1 ? content.length - prevLinebreak : content.length - 1;
+          } else {
+            offset = linebreaksCount !== 0 ? content.length - lastLinebreak - column - 1 : content.length - 1;
+          }
+          position[1] = column + offset;
+
+          if (!colOffset) return position;
+
+          if (endsWithLinebreak) {
+            position[0]++;
+            position[1] = colOffset;
+          } else {
+            position[1] += colOffset;
+          }
+
+          return position;
+        }
+
+        function getLastPositionForArray(content, line, column, colOffset) {
+          var position;
+
+          if (content.length === 0) {
+            position = [line, column];
+          } else {
+            var c = content[content.length - 1];
+            if (c.hasOwnProperty('end')) {
+              position = [c.end.line, c.end.column];
+            } else {
+              position = getLastPosition(c.content, line, column);
+            }
+          }
+
+          if (!colOffset) return position;
+
+          if (tokens[pos - 1] && tokens[pos - 1].type !== 'Newline') {
+            position[1] += colOffset;
+          } else {
+            position[0]++;
+            position[1] = 1;
+          }
+
+          return position;
+        }
+
+        function newNode(type, content, line, column, end) {
+          if (!end) end = getLastPosition(content, line, column);
+          return new Node({
+            type: type,
+            content: content,
+            start: {
+              line: line,
+              column: column
+            },
+            end: {
+              line: end[0],
+              column: end[1]
+            },
+            syntax: 'scss'
+          });
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkAny(i){return checkBrackets(i) || checkParentheses(i) || checkString(i) || checkVariablesList(i) || checkVariable(i) || checkPlaceholder(i) || checkPercentage(i) || checkDimension(i) || checkNumber(i) || checkUri(i) || checkExpression(i) || checkFunction(i) || checkInterpolation(i) || checkIdent(i) || checkClass(i) || checkUnary(i);} /**
+         */
+        function checkAny(i) {
+          var l = void 0;
+
+          if (l = checkBrackets(i)) tokens[i].any_type = 1;else if (l = checkParentheses(i)) tokens[i].any_type = 2;else if (l = checkString(i)) tokens[i].any_type = 3;else if (l = checkVariablesList(i)) tokens[i].any_type = 4;else if (l = checkVariable(i)) tokens[i].any_type = 5;else if (l = checkPlaceholder(i)) tokens[i].any_type = 6;else if (l = checkPercentage(i)) tokens[i].any_type = 7;else if (l = checkDimension(i)) tokens[i].any_type = 8;else if (l = checkUnicodeRange(i)) tokens[i].any_type = 9;else if (l = checkNumber(i)) tokens[i].any_type = 10;else if (l = checkUri(i)) tokens[i].any_type = 11;else if (l = checkExpression(i)) tokens[i].any_type = 12;else if (l = checkFunction(i)) tokens[i].any_type = 13;else if (l = checkInterpolation(i)) tokens[i].any_type = 14;else if (l = checkIdent(i)) tokens[i].any_type = 15;else if (l = checkClass(i)) tokens[i].any_type = 16;else if (l = checkUnary(i)) tokens[i].any_type = 17;
+
+          return l;
+        }
+
+        /**
          * @returns {Array}
-         */function getAny(){if(checkBrackets(pos))return getBrackets();else if(checkParentheses(pos))return getParentheses();else if(checkString(pos))return getString();else if(checkVariablesList(pos))return getVariablesList();else if(checkVariable(pos))return getVariable();else if(checkPlaceholder(pos))return getPlaceholder();else if(checkPercentage(pos))return getPercentage();else if(checkDimension(pos))return getDimension();else if(checkNumber(pos))return getNumber();else if(checkUri(pos))return getUri();else if(checkExpression(pos))return getExpression();else if(checkFunction(pos))return getFunction();else if(checkInterpolation(pos))return getInterpolation();else if(checkIdent(pos))return getIdent();else if(checkClass(pos))return getClass();else if(checkUnary(pos))return getUnary();} /**
+         */
+        function getAny() {
+          var type = tokens[pos].any_type;
+
+          if (type === 1) return getBrackets();
+          if (type === 2) return getParentheses();
+          if (type === 3) return getString();
+          if (type === 4) return getVariablesList();
+          if (type === 5) return getVariable();
+          if (type === 6) return getPlaceholder();
+          if (type === 7) return getPercentage();
+          if (type === 8) return getDimension();
+          if (type === 9) return getUnicodeRange();
+          if (type === 10) return getNumber();
+          if (type === 11) return getUri();
+          if (type === 12) return getExpression();
+          if (type === 13) return getFunction();
+          if (type === 14) return getInterpolation();
+          if (type === 15) return getIdent();
+          if (type === 16) return getClass();
+          if (type === 17) return getUnary();
+        }
+
+        /**
          * Check if token is part of mixin's arguments.
          * @param {Number} i Token's index number
          * @returns {Number} Length of arguments
-         */function checkArguments(i){var start=i;var l=undefined;if(i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis)return 0;i++;while(i < tokens[start].right) {if(l = checkArgument(i))i += l;else return 0;}return tokens[start].right - start + 1;} /**
+         */
+        function checkArguments(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          i++;
+
+          while (i < tokens[start].right) {
+            if (l = checkArgument(i)) i += l;else return 0;
+          }
+
+          return tokens[start].right - start + 1;
+        }
+
+        /**
          * Check if token is valid to be part of arguments list
          * @param {Number} i Token's index number
          * @returns {Number} Length of argument
-         */function checkArgument(i){return checkBrackets(i) || checkParentheses(i) || checkDeclaration(i) || checkFunction(i) || checkVariablesList(i) || checkVariable(i) || checkSC(i) || checkDelim(i) || checkDeclDelim(i) || checkString(i) || checkPercentage(i) || checkDimension(i) || checkNumber(i) || checkUri(i) || checkInterpolation(i) || checkIdent(i) || checkVhash(i) || checkOperator(i) || checkUnary(i);} /**
+         */
+        function checkArgument(i) {
+          return checkBrackets(i) || checkParentheses(i) || checkSingleValueDeclaration(i) || checkFunction(i) || checkVariablesList(i) || checkVariable(i) || checkSC(i) || checkDelim(i) || checkDeclDelim(i) || checkString(i) || checkPercentage(i) || checkDimension(i) || checkNumber(i) || checkUri(i) || checkInterpolation(i) || checkIdent(i) || checkVhash(i) || checkOperator(i) || checkUnary(i) || checkImportant(i) || checkGlobal(i) || checkDefault(i) || checkOptional(i) || checkParentSelector(i);
+        }
+
+        /**
          * @returns {Array} Node that is part of arguments list
-         */function getArgument(){if(checkBrackets(pos))return getBrackets();else if(checkParentheses(pos))return getParentheses();else if(checkDeclaration(pos))return getDeclaration();else if(checkFunction(pos))return getFunction();else if(checkVariablesList(pos))return getVariablesList();else if(checkVariable(pos))return getVariable();else if(checkSC(pos))return getSC();else if(checkDelim(pos))return getDelim();else if(checkDeclDelim(pos))return getDeclDelim();else if(checkString(pos))return getString();else if(checkPercentage(pos))return getPercentage();else if(checkDimension(pos))return getDimension();else if(checkNumber(pos))return getNumber();else if(checkUri(pos))return getUri();else if(checkInterpolation(pos))return getInterpolation();else if(checkIdent(pos))return getIdent();else if(checkVhash(pos))return getVhash();else if(checkOperator(pos))return getOperator();else if(checkUnary(pos))return getUnary();} /**
+         */
+        function getArgument() {
+          if (checkBrackets(pos)) return getBrackets();else if (checkParentheses(pos)) return getParentheses();else if (checkSingleValueDeclaration(pos)) return getSingleValueDeclaration();else if (checkFunction(pos)) return getFunction();else if (checkVariablesList(pos)) return getVariablesList();else if (checkVariable(pos)) return getVariable();else if (checkSC(pos)) return getSC();else if (checkDelim(pos)) return getDelim();else if (checkDeclDelim(pos)) return getDeclDelim();else if (checkString(pos)) return getString();else if (checkPercentage(pos)) return getPercentage();else if (checkDimension(pos)) return getDimension();else if (checkNumber(pos)) return getNumber();else if (checkUri(pos)) return getUri();else if (checkInterpolation(pos)) return getInterpolation();else if (checkIdent(pos)) return getIdent();else if (checkVhash(pos)) return getVhash();else if (checkOperator(pos)) return getOperator();else if (checkUnary(pos)) return getUnary();else if (checkImportant(pos)) return getImportant();else if (checkGlobal(pos)) return getGlobal();else if (checkDefault(pos)) return getDefault();else if (checkOptional(pos)) return getOptional();else if (checkParentSelector(pos)) return getParentSelector();
+        }
+
+        /**
          * Check if token is part of an @-word (e.g. `@import`, `@include`)
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkAtkeyword(i){var l; // Check that token is `@`:
-        if(i >= tokensLength || tokens[i++].type !== TokenType.CommercialAt)return 0;return (l = checkIdentOrInterpolation(i))?l + 1:0;} /**
+         */
+        function checkAtkeyword(i) {
+          var l;
+
+          // Check that token is `@`:
+          if (i >= tokensLength || tokens[i++].type !== TokenType.CommercialAt) return 0;
+
+          return (l = checkIdentOrInterpolation(i)) ? l + 1 : 0;
+        }
+
+        /**
          * Get node with @-word
          * @returns {Array} `['atkeyword', ['ident', x]]` where `x` is
          *      an identifier without
          *      `@` (e.g. `import`, `include`)
-         */function getAtkeyword(){var startPos=pos;var x=undefined;pos++;x = getIdentOrInterpolation();var token=tokens[startPos];return newNode(NodeType.AtkeywordType,x,token.ln,token.col);} /**
+         */
+        function getAtkeyword() {
+          var startPos = pos;
+          var x = void 0;
+
+          pos++;
+
+          x = getIdentOrInterpolation();
+
+          var token = tokens[startPos];
+          return newNode(NodeType.AtkeywordType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is a part of an @-rule
          * @param {Number} i Token's index number
          * @returns {Number} Length of @-rule
-         */function checkAtrule(i){var l;if(i >= tokensLength)return 0; // If token already has a record of being part of an @-rule,
-        // return the @-rule's length:
-        if(tokens[i].atrule_l !== undefined)return tokens[i].atrule_l; // If token is part of an @-rule, save the rule's type to token:
-        if(l = checkKeyframesRule(i))tokens[i].atrule_type = 4;else if(l = checkAtruler(i))tokens[i].atrule_type = 1; // @-rule with ruleset
-        else if(l = checkAtruleb(i))tokens[i].atrule_type = 2; // Block @-rule
-        else if(l = checkAtrules(i))tokens[i].atrule_type = 3; // Single-line @-rule
-        else return 0; // If token is part of an @-rule, save the rule's length to token:
-        tokens[i].atrule_l = l;return l;} /**
+         */
+        function checkAtrule(i) {
+          var l;
+
+          if (i >= tokensLength) return 0;
+
+          // If token already has a record of being part of an @-rule,
+          // return the @-rule's length:
+          if (tokens[i].atrule_l !== undefined) return tokens[i].atrule_l;
+
+          // If token is part of an @-rule, save the rule's type to token.
+          // @keyframes:
+          if (l = checkKeyframesRule(i)) tokens[i].atrule_type = 4;
+          // @-rule with ruleset:
+          else if (l = checkAtruler(i)) tokens[i].atrule_type = 1;
+            // Block @-rule:
+            else if (l = checkAtruleb(i)) tokens[i].atrule_type = 2;
+              // Single-line @-rule:
+              else if (l = checkAtrules(i)) tokens[i].atrule_type = 3;else return 0;
+
+          // If token is part of an @-rule, save the rule's length to token:
+          tokens[i].atrule_l = l;
+
+          return l;
+        }
+
+        /**
          * Get node with @-rule
          * @returns {Array}
-         */function getAtrule(){switch(tokens[pos].atrule_type){case 1:return getAtruler(); // @-rule with ruleset
-        case 2:return getAtruleb(); // Block @-rule
-        case 3:return getAtrules(); // Single-line @-rule
-        case 4:return getKeyframesRule();}} /**
+         */
+        function getAtrule() {
+          switch (tokens[pos].atrule_type) {
+            case 1:
+              return getAtruler(); // @-rule with ruleset
+            case 2:
+              return getAtruleb(); // Block @-rule
+            case 3:
+              return getAtrules(); // Single-line @-rule
+            case 4:
+              return getKeyframesRule();
+          }
+        }
+
+        /**
          * Check if token is part of a block @-rule
          * @param {Number} i Token's index number
          * @returns {Number} Length of the @-rule
-         */function checkAtruleb(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkAtkeyword(i))i += l;else return 0;if(l = checkTsets(i))i += l;if(l = checkBlock(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkAtruleb(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (l = checkTsets(i)) i += l;
+
+          if (l = checkBlock(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * Get node with a block @-rule
          * @returns {Array} `['atruleb', ['atkeyword', x], y, ['block', z]]`
-         */function getAtruleb(){var startPos=pos;var x=undefined;x = [getAtkeyword()].concat(getTsets()).concat([getBlock()]);var token=tokens[startPos];return newNode(NodeType.AtruleType,x,token.ln,token.col);} /**
+         */
+        function getAtruleb() {
+          var startPos = pos;
+          var x = void 0;
+
+          x = [getAtkeyword()].concat(getTsets()).concat([getBlock()]);
+
+          var token = tokens[startPos];
+          return newNode(NodeType.AtruleType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of an @-rule with ruleset
          * @param {Number} i Token's index number
          * @returns {Number} Length of the @-rule
-         */function checkAtruler(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkAtkeyword(i))i += l;else return 0;if(l = checkTsets(i))i += l;if(i < tokensLength && tokens[i].type === TokenType.LeftCurlyBracket)i++;else return 0;if(l = checkAtrulers(i))i += l;if(i < tokensLength && tokens[i].type === TokenType.RightCurlyBracket)i++;else return 0;return i - start;} /**
+         */
+        function checkAtruler(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (l = checkTsets(i)) i += l;
+
+          if (i < tokensLength && tokens[i].type === TokenType.LeftCurlyBracket) i++;else return 0;
+
+          if (l = checkAtrulers(i)) i += l;
+
+          if (i < tokensLength && tokens[i].type === TokenType.RightCurlyBracket) i++;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * Get node with an @-rule with ruleset
          * @returns {Array} ['atruler', ['atkeyword', x], y, z]
-         */function getAtruler(){var startPos=pos;var x=undefined;x = [getAtkeyword()].concat(getTsets());x.push(getAtrulers());var token=tokens[startPos];return newNode(NodeType.AtruleType,x,token.ln,token.col);} /**
+         */
+        function getAtruler() {
+          var startPos = pos;
+          var x = void 0;
+
+          x = [getAtkeyword()].concat(getTsets());
+
+          x.push(getAtrulers());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.AtruleType, x, token.ln, token.col);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkAtrulers(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;while(l = checkRuleset(i) || checkAtrule(i) || checkSC(i)) {i += l;}if(i < tokensLength)tokens[i].atrulers_end = 1;return i - start;} /**
+         */
+        function checkAtrulers(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          while (l = checkRuleset(i) || checkAtrule(i) || checkSC(i)) {
+            i += l;
+          }
+
+          if (i < tokensLength) tokens[i].atrulers_end = 1;
+
+          return i - start;
+        }
+
+        /**
          * @returns {Array} `['atrulers', x]`
-         */function getAtrulers(){var startPos=pos;var x=undefined;var token=tokens[startPos];var line=token.ln;var column=token.col;pos++;x = getSC();while(!tokens[pos].atrulers_end) {if(checkSC(pos))x = x.concat(getSC());else if(checkAtrule(pos))x.push(getAtrule());else if(checkRuleset(pos))x.push(getRuleset());}x = x.concat(getSC());var end=getLastPosition(x,line,column,1);pos++;return newNode(NodeType.BlockType,x,token.ln,token.col,end);} /**
+         */
+        function getAtrulers() {
+          var startPos = pos;
+          var x = void 0;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+          pos++;
+
+          x = getSC();
+
+          while (!tokens[pos].atrulers_end) {
+            if (checkSC(pos)) x = x.concat(getSC());else if (checkAtrule(pos)) x.push(getAtrule());else if (checkRuleset(pos)) x.push(getRuleset());
+          }
+
+          x = x.concat(getSC());
+
+          var end = getLastPosition(x, line, column, 1);
+          pos++;
+
+          return newNode(NodeType.BlockType, x, token.ln, token.col, end);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkAtrules(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkAtkeyword(i))i += l;else return 0;if(l = checkTsets(i))i += l;return i - start;} /**
+         */
+        function checkAtrules(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (l = checkTsets(i)) i += l;
+
+          return i - start;
+        }
+
+        /**
          * @returns {Array} `['atrules', ['atkeyword', x], y]`
-         */function getAtrules(){var startPos=pos;var x=undefined;x = [getAtkeyword()].concat(getTsets());var token=tokens[startPos];return newNode(NodeType.AtruleType,x,token.ln,token.col);} /**
+         */
+        function getAtrules() {
+          var startPos = pos;
+          var x = void 0;
+
+          x = [getAtkeyword()].concat(getTsets());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.AtruleType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of a block (e.g. `{...}`).
          * @param {Number} i Token's index number
          * @returns {Number} Length of the block
-         */function checkBlock(i){return i < tokensLength && tokens[i].type === TokenType.LeftCurlyBracket?tokens[i].right - i + 1:0;} /**
+         */
+        function checkBlock(i) {
+          return i < tokensLength && tokens[i].type === TokenType.LeftCurlyBracket ? tokens[i].right - i + 1 : 0;
+        }
+
+        /**
          * Get node with a block
          * @returns {Array} `['block', x]`
-         */function getBlock(){var startPos=pos;var end=tokens[pos].right;var x=[];var token=tokens[startPos];var line=token.ln;var column=token.col;pos++;while(pos < end) {if(checkBlockdecl(pos))x = x.concat(getBlockdecl());else throwError();}var end_=getLastPosition(x,line,column,1);pos = end + 1;return newNode(NodeType.BlockType,x,token.ln,token.col,end_);} /**
+         */
+        function getBlock() {
+          var startPos = pos;
+          var end = tokens[pos].right;
+          var x = [];
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+
+          pos++;
+
+          while (pos < end) {
+            if (checkBlockdecl(pos)) x = x.concat(getBlockdecl());else throwError();
+          }
+
+          var end_ = getLastPosition(x, line, column, 1);
+          pos = end + 1;
+
+          return newNode(NodeType.BlockType, x, token.ln, token.col, end_);
+        }
+
+        /**
          * Check if token is part of a declaration (property-value pair)
          * @param {Number} i Token's index number
          * @returns {Number} Length of the declaration
-         */function checkBlockdecl(i){var l;if(i >= tokensLength)return 0;if(l = checkBlockdecl1(i))tokens[i].bd_type = 1;else if(l = checkBlockdecl2(i))tokens[i].bd_type = 2;else if(l = checkBlockdecl3(i))tokens[i].bd_type = 3;else if(l = checkBlockdecl4(i))tokens[i].bd_type = 4;else return 0;return l;} /**
+         */
+        function checkBlockdecl(i) {
+          var l;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkBlockdecl1(i)) tokens[i].bd_type = 1;else if (l = checkBlockdecl2(i)) tokens[i].bd_type = 2;else if (l = checkBlockdecl3(i)) tokens[i].bd_type = 3;else if (l = checkBlockdecl4(i)) tokens[i].bd_type = 4;else return 0;
+
+          return l;
+        }
+
+        /**
          * @returns {Array}
-         */function getBlockdecl(){switch(tokens[pos].bd_type){case 1:return getBlockdecl1();case 2:return getBlockdecl2();case 3:return getBlockdecl3();case 4:return getBlockdecl4();}} /**
+         */
+        function getBlockdecl() {
+          switch (tokens[pos].bd_type) {
+            case 1:
+              return getBlockdecl1();
+            case 2:
+              return getBlockdecl2();
+            case 3:
+              return getBlockdecl3();
+            case 4:
+              return getBlockdecl4();
+          }
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkBlockdecl1(i){var start=i;var l=undefined;if(l = checkSC(i))i += l;if(l = checkConditionalStatement(i))tokens[i].bd_kind = 1;else if(l = checkInclude(i))tokens[i].bd_kind = 2;else if(l = checkExtend(i))tokens[i].bd_kind = 4;else if(l = checkLoop(i))tokens[i].bd_kind = 3;else if(l = checkAtrule(i))tokens[i].bd_kind = 6;else if(l = checkRuleset(i))tokens[i].bd_kind = 7;else if(l = checkDeclaration(i))tokens[i].bd_kind = 5;else return 0;i += l;if(i < tokensLength && (l = checkDeclDelim(i)))i += l;else return 0;if(l = checkSC(i))i += l;return i - start;} /**
+         */
+        function checkBlockdecl1(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkConditionalStatement(i)) tokens[i].bd_kind = 1;else if (l = checkInclude(i)) tokens[i].bd_kind = 2;else if (l = checkExtend(i)) tokens[i].bd_kind = 4;else if (l = checkLoop(i)) tokens[i].bd_kind = 3;else if (l = checkAtrule(i)) tokens[i].bd_kind = 6;else if (l = checkRuleset(i)) tokens[i].bd_kind = 7;else if (l = checkDeclaration(i)) tokens[i].bd_kind = 5;else return 0;
+
+          i += l;
+
+          if (i < tokensLength && (l = checkDeclDelim(i))) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          return i - start;
+        }
+
+        /**
          * @returns {Array}
-         */function getBlockdecl1(){var sc=getSC();var x=undefined;switch(tokens[pos].bd_kind){case 1:x = getConditionalStatement();break;case 2:x = getInclude();break;case 3:x = getLoop();break;case 4:x = getExtend();break;case 5:x = getDeclaration();break;case 6:x = getAtrule();break;case 7:x = getRuleset();break;}return sc.concat([x]).concat([getDeclDelim()]).concat(getSC());} /**
+         */
+        function getBlockdecl1() {
+          var sc = getSC();
+          var x = void 0;
+
+          switch (tokens[pos].bd_kind) {
+            case 1:
+              x = getConditionalStatement();
+              break;
+            case 2:
+              x = getInclude();
+              break;
+            case 3:
+              x = getLoop();
+              break;
+            case 4:
+              x = getExtend();
+              break;
+            case 5:
+              x = getDeclaration();
+              break;
+            case 6:
+              x = getAtrule();
+              break;
+            case 7:
+              x = getRuleset();
+              break;
+          }
+
+          return sc.concat([x]).concat([getDeclDelim()]).concat(getSC());
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkBlockdecl2(i){var start=i;var l=undefined;if(l = checkSC(i))i += l;if(l = checkConditionalStatement(i))tokens[i].bd_kind = 1;else if(l = checkInclude(i))tokens[i].bd_kind = 2;else if(l = checkExtend(i))tokens[i].bd_kind = 4;else if(l = checkMixin(i))tokens[i].bd_kind = 8;else if(l = checkLoop(i))tokens[i].bd_kind = 3;else if(l = checkAtrule(i))tokens[i].bd_kind = 6;else if(l = checkRuleset(i))tokens[i].bd_kind = 7;else if(l = checkDeclaration(i))tokens[i].bd_kind = 5;else return 0;i += l;if(l = checkSC(i))i += l;return i - start;} /**
+         */
+        function checkBlockdecl2(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkConditionalStatement(i)) tokens[i].bd_kind = 1;else if (l = checkInclude(i)) tokens[i].bd_kind = 2;else if (l = checkExtend(i)) tokens[i].bd_kind = 4;else if (l = checkMixin(i)) tokens[i].bd_kind = 8;else if (l = checkLoop(i)) tokens[i].bd_kind = 3;else if (l = checkAtrule(i)) tokens[i].bd_kind = 6;else if (l = checkRuleset(i)) tokens[i].bd_kind = 7;else if (l = checkDeclaration(i)) tokens[i].bd_kind = 5;else return 0;
+
+          i += l;
+
+          if (l = checkSC(i)) i += l;
+
+          return i - start;
+        }
+
+        /**
          * @returns {Array}
-         */function getBlockdecl2(){var sc=getSC();var x=undefined;switch(tokens[pos].bd_kind){case 1:x = getConditionalStatement();break;case 2:x = getInclude();break;case 3:x = getLoop();break;case 4:x = getExtend();break;case 5:x = getDeclaration();break;case 6:x = getAtrule();break;case 7:x = getRuleset();break;case 8:x = getMixin();break;}return sc.concat([x]).concat(getSC());} /**
+         */
+        function getBlockdecl2() {
+          var sc = getSC();
+          var x = void 0;
+
+          switch (tokens[pos].bd_kind) {
+            case 1:
+              x = getConditionalStatement();
+              break;
+            case 2:
+              x = getInclude();
+              break;
+            case 3:
+              x = getLoop();
+              break;
+            case 4:
+              x = getExtend();
+              break;
+            case 5:
+              x = getDeclaration();
+              break;
+            case 6:
+              x = getAtrule();
+              break;
+            case 7:
+              x = getRuleset();
+              break;
+            case 8:
+              x = getMixin();
+              break;
+          }
+
+          return sc.concat([x]).concat(getSC());
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkBlockdecl3(i){var start=i;var l=undefined;if(l = checkSC(i))i += l;if(l = checkDeclDelim(i))i += l;else return 0;if(l = checkSC(i))i += l;return i - start;} /**
+         */
+        function checkBlockdecl3(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkDeclDelim(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          return i - start;
+        }
+
+        /**
          * @returns {Array} `[s0, ['declDelim'], s1]` where `s0` and `s1` are
          *      are optional whitespaces.
-         */function getBlockdecl3(){return getSC().concat([getDeclDelim()]).concat(getSC());} /**
+         */
+        function getBlockdecl3() {
+          return getSC().concat([getDeclDelim()]).concat(getSC());
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkBlockdecl4(i){return checkSC(i);} /**
+         */
+        function checkBlockdecl4(i) {
+          return checkSC(i);
+        }
+
+        /**
          * @returns {Array}
-         */function getBlockdecl4(){return getSC();} /**
+         */
+        function getBlockdecl4() {
+          return getSC();
+        }
+
+        /**
          * Check if token is part of text inside square brackets, e.g. `[1]`
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkBrackets(i){if(i >= tokensLength || tokens[i].type !== TokenType.LeftSquareBracket)return 0;return tokens[i].right - i + 1;} /**
+         */
+        function checkBrackets(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+
+          if (tokens[i].type === TokenType.LeftSquareBracket) i++;else return 0;
+
+          if (i < tokens[start].right) {
+            var l = checkTsets(i);
+            if (l) i += l;else return 0;
+          }
+
+          i++;
+
+          return i - start;
+        }
+
+        /**
          * Get node with text inside parentheses or square brackets (e.g. `(1)`)
          * @return {Node}
-         */function getBrackets(){var startPos=pos;var token=tokens[startPos];var line=token.ln;var column=token.col;pos++;var tsets=getTsets();var end=getLastPosition(tsets,line,column,1);pos++;return newNode(NodeType.BracketsType,tsets,token.ln,token.col,end);} /**
+         */
+        function getBrackets() {
+          var startPos = pos;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+          var tsets = [];
+          var right = token.right;
+
+          pos++;
+
+          if (pos < right) {
+            tsets = getTsets();
+          }
+
+          var end = getLastPosition(tsets, line, column, 1);
+          pos++;
+
+          return newNode(NodeType.BracketsType, tsets, token.ln, token.col, end);
+        }
+
+        /**
          * Check if token is part of a class selector (e.g. `.abc`)
          * @param {Number} i Token's index number
          * @returns {Number} Length of the class selector
-         */function checkClass(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(tokens[i].class_l)return tokens[i].class_l;if(tokens[i++].type !== TokenType.FullStop)return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkClass(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].class_l) return tokens[i].class_l;
+
+          if (tokens[i++].type !== TokenType.FullStop) return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            if (l = checkIdentOrInterpolation(i)) i += l;else break;
+          }
+
+          tokens[start].classEnd = i;
+
+          return i - start;
+        }
+
+        /**
          * Get node with a class selector
          * @returns {Array} `['class', ['ident', x]]` where x is a class's
          *      identifier (without `.`, e.g. `abc`).
-         */function getClass(){var startPos=pos;var x=[];pos++;x = x.concat(getIdentOrInterpolation());var token=tokens[startPos];return newNode(NodeType.ClassType,x,token.ln,token.col);}function checkCombinator(i){if(i >= tokensLength)return 0;var l=undefined;if(l = checkCombinator1(i))tokens[i].combinatorType = 1;else if(l = checkCombinator2(i))tokens[i].combinatorType = 2;else if(l = checkCombinator3(i))tokens[i].combinatorType = 3;return l;}function getCombinator(){var type=tokens[pos].combinatorType;if(type === 1)return getCombinator1();if(type === 2)return getCombinator2();if(type === 3)return getCombinator3();} /**
+         */
+        function getClass() {
+          var startPos = pos;
+          var type = NodeType.ClassType;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+          var end = token.classEnd;
+
+          // Skip `.`
+          pos++;
+
+          while (pos < end) {
+            if (checkIdentOrInterpolation(pos)) {
+              content = content.concat(getIdentOrInterpolation());
+            } else break;
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkCombinator(i) {
+          if (i >= tokensLength) return 0;
+
+          var l = void 0;
+          if (l = checkCombinator1(i)) tokens[i].combinatorType = 1;else if (l = checkCombinator2(i)) tokens[i].combinatorType = 2;else if (l = checkCombinator3(i)) tokens[i].combinatorType = 3;
+
+          return l;
+        }
+
+        function getCombinator() {
+          var type = tokens[pos].combinatorType;
+          if (type === 1) return getCombinator1();
+          if (type === 2) return getCombinator2();
+          if (type === 3) return getCombinator3();
+        }
+        /**
          * (1) `||`
-         */function checkCombinator1(i){if(tokens[i].type === TokenType.VerticalLine && tokens[i + 1].type === TokenType.VerticalLine)return 2;else return 0;}function getCombinator1(){var type=NodeType.CombinatorType;var token=tokens[pos];var line=token.ln;var column=token.col;var content='||';pos += 2;return newNode(type,content,line,column);} /**
+         */
+        function checkCombinator1(i) {
+          if (tokens[i].type === TokenType.VerticalLine && tokens[i + 1].type === TokenType.VerticalLine) return 2;else return 0;
+        }
+
+        function getCombinator1() {
+          var type = NodeType.CombinatorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = '||';
+
+          pos += 2;
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * (1) `>`
          * (2) `+`
          * (3) `~`
-         */function checkCombinator2(i){var type=tokens[i].type;if(type === TokenType.PlusSign || type === TokenType.GreaterThanSign || type === TokenType.Tilde)return 1;else return 0;}function getCombinator2(){var type=NodeType.CombinatorType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=tokens[pos++].value;return newNode(type,content,line,column);} /**
+         */
+        function checkCombinator2(i) {
+          var type = tokens[i].type;
+          if (type === TokenType.PlusSign || type === TokenType.GreaterThanSign || type === TokenType.Tilde) return 1;else return 0;
+        }
+
+        function getCombinator2() {
+          var type = NodeType.CombinatorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = tokens[pos++].value;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * (1) `/panda/`
-         */function checkCombinator3(i){var start=i;if(tokens[i].type === TokenType.Solidus)i++;else return 0;var l=undefined;if(l = checkIdent(i))i += l;else return 0;if(tokens[i].type === TokenType.Solidus)i++;else return 0;return i - start;}function getCombinator3(){var type=NodeType.CombinatorType;var token=tokens[pos];var line=token.ln;var column=token.col; // Skip `/`.
-        pos++;var ident=getIdent(); // Skip `/`.
-        pos++;var content='/' + ident.content + '/';return newNode(type,content,line,column);} /**
+         */
+        function checkCombinator3(i) {
+          var start = i;
+
+          if (tokens[i].type === TokenType.Solidus) i++;else return 0;
+
+          var l = void 0;
+          if (l = checkIdent(i)) i += l;else return 0;
+
+          if (tokens[i].type === TokenType.Solidus) i++;else return 0;
+
+          return i - start;
+        }
+
+        function getCombinator3() {
+          var type = NodeType.CombinatorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+
+          // Skip `/`.
+          pos++;
+          var ident = getIdent();
+
+          // Skip `/`.
+          pos++;
+
+          var content = '/' + ident.content + '/';
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * Check if token is a multiline comment.
          * @param {Number} i Token's index number
          * @returns {Number} `1` if token is a multiline comment, otherwise `0`
-         */function checkCommentML(i){return i < tokensLength && tokens[i].type === TokenType.CommentML?1:0;} /**
+         */
+        function checkCommentML(i) {
+          return i < tokensLength && tokens[i].type === TokenType.CommentML ? 1 : 0;
+        }
+
+        /**
          * Get node with a multiline comment
          * @returns {Array} `['commentML', x]` where `x`
          *      is the comment's text (without `/*` and `* /`).
-         */function getCommentML(){var startPos=pos;var s=tokens[pos].value.substring(2);var l=s.length;var token=tokens[startPos];var line=token.ln;var column=token.col;if(s.charAt(l - 2) === '*' && s.charAt(l - 1) === '/')s = s.substring(0,l - 2);var end=getLastPosition(s,line,column,2);if(end[0] === line)end[1] += 2;pos++;return newNode(NodeType.CommentMLType,s,token.ln,token.col,end);} /**
+         */
+        function getCommentML() {
+          var startPos = pos;
+          var s = tokens[pos].value.substring(2);
+          var l = s.length;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+
+          if (s.charAt(l - 2) === '*' && s.charAt(l - 1) === '/') s = s.substring(0, l - 2);
+
+          var end = getLastPosition(s, line, column, 2);
+          if (end[0] === line) end[1] += 2;
+          pos++;
+
+          return newNode(NodeType.CommentMLType, s, token.ln, token.col, end);
+        }
+
+        /**
          * Check if token is part of a single-line comment.
          * @param {Number} i Token's index number
          * @returns {Number} `1` if token is a single-line comment, otherwise `0`
-         */function checkCommentSL(i){return i < tokensLength && tokens[i].type === TokenType.CommentSL?1:0;} /**
+         */
+        function checkCommentSL(i) {
+          return i < tokensLength && tokens[i].type === TokenType.CommentSL ? 1 : 0;
+        }
+
+        /**
          * Get node with a single-line comment.
          * @returns {Array} `['commentSL', x]` where `x` is comment's message
          *      (without `//`)
-         */function getCommentSL(){var startPos=pos;var x=undefined;var token=tokens[startPos];var line=token.ln;var column=token.col;x = tokens[pos++].value.substring(2);var end=getLastPosition(x,line,column + 2);return newNode(NodeType.CommentSLType,x,token.ln,token.col,end);} /**
+         */
+        function getCommentSL() {
+          var startPos = pos;
+          var x = void 0;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+
+          x = tokens[pos++].value.substring(2);
+          var end = getLastPosition(x, line, column + 2);
+
+          return newNode(NodeType.CommentSLType, x, token.ln, token.col, end);
+        }
+
+        /**
          * Check if token is part of a condition
          * (e.g. `@if ...`, `@else if ...` or `@else ...`).
          * @param {Number} i Token's index number
          * @returns {Number} Length of the condition
-         */function checkCondition(i){var start=i;var l=undefined;var _i=undefined;var s=undefined;if(i >= tokensLength)return 0;if(l = checkAtkeyword(i))i += l;else return 0;if(['if','else'].indexOf(tokens[start + 1].value) < 0)return 0;while(i < tokensLength) {if(l = checkBlock(i))break;s = checkSC(i);_i = i + s;if(l = _checkCondition(_i))i += l + s;else break;}return i - start;}function _checkCondition(i){return checkVariable(i) || checkNumber(i) || checkInterpolation(i) || checkIdent(i) || checkOperator(i) || checkCombinator(i) || checkString(i);} /**
+         */
+        function checkCondition(i) {
+          var start = i;
+          var l = void 0;
+          var _i = void 0;
+          var s = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (['if', 'else'].indexOf(tokens[start + 1].value) < 0) return 0;
+
+          while (i < tokensLength) {
+            if (l = checkBlock(i)) break;
+
+            s = checkSC(i);
+            _i = i + s;
+
+            if (l = _checkCondition(_i)) i += l + s;else break;
+          }
+
+          return i - start;
+        }
+
+        function _checkCondition(i) {
+          return checkVariable(i) || checkNumber(i) || checkInterpolation(i) || checkIdent(i) || checkOperator(i) || checkCombinator(i) || checkString(i);
+        }
+
+        /**
          * Get node with a condition.
          * @returns {Array} `['condition', x]`
-         */function getCondition(){var startPos=pos;var x=[];var s;var _pos;x.push(getAtkeyword());while(pos < tokensLength) {if(checkBlock(pos))break;s = checkSC(pos);_pos = pos + s;if(!_checkCondition(_pos))break;if(s)x = x.concat(getSC());x.push(_getCondition());}var token=tokens[startPos];return newNode(NodeType.ConditionType,x,token.ln,token.col);}function _getCondition(){if(checkVariable(pos))return getVariable();if(checkNumber(pos))return getNumber();if(checkInterpolation(pos))return getInterpolation();if(checkIdent(pos))return getIdent();if(checkOperator(pos))return getOperator();if(checkCombinator(pos))return getCombinator();if(checkString(pos))return getString();} /**
+         */
+        function getCondition() {
+          var startPos = pos;
+          var x = [];
+          var s;
+          var _pos;
+
+          x.push(getAtkeyword());
+
+          while (pos < tokensLength) {
+            if (checkBlock(pos)) break;
+
+            s = checkSC(pos);
+            _pos = pos + s;
+
+            if (!_checkCondition(_pos)) break;
+
+            if (s) x = x.concat(getSC());
+            x.push(_getCondition());
+          }
+
+          var token = tokens[startPos];
+          return newNode(NodeType.ConditionType, x, token.ln, token.col);
+        }
+
+        function _getCondition() {
+          if (checkVariable(pos)) return getVariable();
+          if (checkNumber(pos)) return getNumber();
+          if (checkInterpolation(pos)) return getInterpolation();
+          if (checkIdent(pos)) return getIdent();
+          if (checkOperator(pos)) return getOperator();
+          if (checkCombinator(pos)) return getCombinator();
+          if (checkString(pos)) return getString();
+        }
+
+        /**
          * Check if token is part of a conditional statement
          * (e.g. `@if ... {} @else if ... {} @else ... {}`).
          * @param {Number} i Token's index number
          * @returns {Number} Length of the condition
-         */function checkConditionalStatement(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkCondition(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkBlock(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkConditionalStatement(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkCondition(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkBlock(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * Get node with a condition.
          * @returns {Array} `['condition', x]`
-         */function getConditionalStatement(){var startPos=pos;var x=[];x.push(getCondition());x = x.concat(getSC());x.push(getBlock());var token=tokens[startPos];return newNode(NodeType.ConditionalStatementType,x,token.ln,token.col);} /**
+         */
+        function getConditionalStatement() {
+          var startPos = pos;
+          var x = [];
+
+          x.push(getCondition());
+          x = x.concat(getSC());
+          x.push(getBlock());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.ConditionalStatementType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of a declaration (property-value pair)
          * @param {Number} i Token's index number
          * @returns {Number} Length of the declaration
-         */function checkDeclaration(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkProperty(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkPropertyDelim(i))i++;else return 0;if(l = checkSC(i))i += l;if(l = checkValue(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkDeclaration(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkProperty(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkPropertyDelim(i)) i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkValue(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * Get node with a declaration
          * @returns {Array} `['declaration', ['property', x], ['propertyDelim'],
          *       ['value', y]]`
-         */function getDeclaration(){var startPos=pos;var x=[];x.push(getProperty());x = x.concat(getSC());x.push(getPropertyDelim());x = x.concat(getSC());x.push(getValue());var token=tokens[startPos];return newNode(NodeType.DeclarationType,x,token.ln,token.col);} /**
+         */
+        function getDeclaration() {
+          var startPos = pos;
+          var x = [];
+
+          x.push(getProperty());
+          x = x.concat(getSC());
+          x.push(getPropertyDelim());
+          x = x.concat(getSC());
+          x.push(getValue());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.DeclarationType, x, token.ln, token.col);
+        }
+
+        /**
+         * @param {number} i Token's index number
+         * @returns {number} Length of the declaration
+         */
+        function checkSingleValueDeclaration(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkProperty(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkPropertyDelim(i)) i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkSingleValue(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * Get node with a declaration
+         * @returns {Array} `['declaration', ['property', x], ['propertyDelim'],
+         *       ['value', y]]`
+         */
+        function getSingleValueDeclaration() {
+          var startPos = pos;
+          var x = [];
+
+          x.push(getProperty());
+          x = x.concat(getSC());
+          x.push(getPropertyDelim());
+          x = x.concat(getSC());
+          x.push(getSingleValue());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.DeclarationType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is a semicolon
          * @param {Number} i Token's index number
          * @returns {Number} `1` if token is a semicolon, otherwise `0`
-         */function checkDeclDelim(i){return i < tokensLength && tokens[i].type === TokenType.Semicolon?1:0;} /**
+         */
+        function checkDeclDelim(i) {
+          return i < tokensLength && tokens[i].type === TokenType.Semicolon ? 1 : 0;
+        }
+
+        /**
          * Get node with a semicolon
          * @returns {Array} `['declDelim']`
-         */function getDeclDelim(){var startPos=pos++;var token=tokens[startPos];return newNode(NodeType.DeclDelimType,';',token.ln,token.col);} /**
+         */
+        function getDeclDelim() {
+          var startPos = pos++;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.DeclDelimType, ';', token.ln, token.col);
+        }
+
+        /**
          * Check if token if part of `!default` word.
          * @param {Number} i Token's index number
          * @returns {Number} Length of the `!default` word
-         */function checkDefault(i){var start=i;var l=undefined;if(i >= tokensLength || tokens[i++].type !== TokenType.ExclamationMark)return 0;if(l = checkSC(i))i += l;if(tokens[i].value === 'default'){tokens[start].defaultEnd = i;return i - start + 1;}else {return 0;}} /**
+         */
+        function checkDefault(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength || tokens[i++].type !== TokenType.ExclamationMark) return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].value === 'default') {
+            tokens[start].defaultEnd = i;
+            return i - start + 1;
+          } else {
+            return 0;
+          }
+        }
+
+        /**
          * Get node with a `!default` word
          * @returns {Array} `['default', sc]` where `sc` is optional whitespace
-         */function getDefault(){var token=tokens[pos];var line=token.ln;var column=token.col;var content=joinValues(pos,token.defaultEnd);pos = token.defaultEnd + 1;return newNode(NodeType.DefaultType,content,line,column);} /**
+         */
+        function getDefault() {
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = joinValues(pos, token.defaultEnd);
+
+          pos = token.defaultEnd + 1;
+
+          return newNode(NodeType.DefaultType, content, line, column);
+        }
+
+        /**
          * Check if token is a comma
          * @param {Number} i Token's index number
          * @returns {Number} `1` if token is a comma, otherwise `0`
-         */function checkDelim(i){return i < tokensLength && tokens[i].type === TokenType.Comma?1:0;} /**
+         */
+        function checkDelim(i) {
+          return i < tokensLength && tokens[i].type === TokenType.Comma ? 1 : 0;
+        }
+
+        /**
          * Get node with a comma
          * @returns {Array} `['delim']`
-         */function getDelim(){var startPos=pos;pos++;var token=tokens[startPos];return newNode(NodeType.DelimType,',',token.ln,token.col);} /**
+         */
+        function getDelim() {
+          var startPos = pos;
+
+          pos++;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.DelimType, ',', token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of a number with dimension unit (e.g. `10px`)
          * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkDimension(i) {
+          var ln = checkNumber(i);
+          var li = void 0;
+
+          if (i >= tokensLength || !ln || i + ln >= tokensLength) return 0;
+
+          return (li = checkUnit(i + ln)) ? ln + li : 0;
+        }
+
+        /**
+         * Get node of a number with dimension unit
+         * @return {Node}
+         */
+        function getDimension() {
+          var type = NodeType.DimensionType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getNumber(), getUnit()];
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is unit
+         * @param {Number} i Token's index number
+         * @return {Number}
+         */
+        function checkUnit(i) {
+          var units = ['em', 'ex', 'ch', 'rem', 'vh', 'vw', 'vmin', 'vmax', 'px', 'mm', 'q', 'cm', 'in', 'pt', 'pc', 'deg', 'grad', 'rad', 'turn', 's', 'ms', 'Hz', 'kHz', 'dpi', 'dpcm', 'dppx'];
+
+          return units.indexOf(tokens[i].value) !== -1 ? 1 : 0;
+        }
+
+        /**
+         * Get unit node of type ident
+         * @return {Node} An ident node containing the unit value
+         */
+        function getUnit() {
+          var type = NodeType.IdentType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = token.value;
+
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkDimension(i){var ln=checkNumber(i);var li=undefined;if(i >= tokensLength || !ln || i + ln >= tokensLength)return 0;return (li = checkNmName2(i + ln))?ln + li:0;} /**
-         * Get node of a number with dimension unit
-         * @returns {Array} `['dimension', ['number', x], ['ident', y]]` where
-         *      `x` is a number converted to string (e.g. `'10'`) and `y` is
-         *      a dimension unit (e.g. `'px'`).
-         */function getDimension(){var startPos=pos;var x=[getNumber()];var token=tokens[pos];var ident=newNode(NodeType.IdentType,getNmName2(),token.ln,token.col);x.push(ident);token = tokens[startPos];return newNode(NodeType.DimensionType,x,token.ln,token.col);} /**
-         * @param {Number} i Token's index number
-         * @returns {Number}
-         */function checkExpression(i){var start=i;if(i >= tokensLength || tokens[i++].value !== 'expression' || i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis)return 0;return tokens[i].right - start + 1;} /**
+         */
+        function checkExpression(i) {
+          var start = i;
+
+          if (i >= tokensLength || tokens[i++].value !== 'expression' || i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          return tokens[i].right - start + 1;
+        }
+
+        /**
          * @returns {Array}
-         */function getExpression(){var startPos=pos;var e;var token=tokens[startPos];var line=token.ln;var column=token.col;pos++;e = joinValues(pos + 1,tokens[pos].right - 1);var end=getLastPosition(e,line,column,1);if(end[0] === line)end[1] += 11;pos = tokens[pos].right + 1;return newNode(NodeType.ExpressionType,e,token.ln,token.col,end);}function checkExtend(i){var l=0;if(l = checkExtend1(i))tokens[i].extend_child = 1;else if(l = checkExtend2(i))tokens[i].extend_child = 2;return l;}function getExtend(){var type=tokens[pos].extend_child;if(type === 1)return getExtend1();else if(type === 2)return getExtend2();} /**
+         */
+        function getExpression() {
+          var startPos = pos;
+          var e;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+
+          pos++;
+
+          e = joinValues(pos + 1, tokens[pos].right - 1);
+          var end = getLastPosition(e, line, column, 1);
+          if (end[0] === line) end[1] += 11;
+          pos = tokens[pos].right + 1;
+
+          return newNode(NodeType.ExpressionType, e, token.ln, token.col, end);
+        }
+
+        function checkExtend(i) {
+          var l = 0;
+
+          if (l = checkExtend1(i)) tokens[i].extend_child = 1;else if (l = checkExtend2(i)) tokens[i].extend_child = 2;
+
+          return l;
+        }
+
+        function getExtend() {
+          var type = tokens[pos].extend_child;
+
+          if (type === 1) return getExtend1();else if (type === 2) return getExtend2();
+        }
+
+        /**
          * Checks if token is part of an extend with `!optional` flag.
          * @param {Number} i
-         */function checkExtend1(i){var start=i;var l;if(i >= tokensLength)return 0;if(l = checkAtkeyword(i))i += l;else return 0;if(tokens[start + 1].value !== 'extend')return 0;if(l = checkSC(i))i += l;else return 0;if(l = checkSelectorsGroup(i))i += l;else return 0;if(l = checkSC(i))i += l;else return 0;if(l = checkOptional(i))i += l;else return 0;return i - start;}function getExtend1(){var startPos=pos;var x=[].concat([getAtkeyword()],getSC(),getSelectorsGroup(),getSC(),[getOptional()]);var token=tokens[startPos];return newNode(NodeType.ExtendType,x,token.ln,token.col);} /**
+         */
+        function checkExtend1(i) {
+          var start = i;
+          var l;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (tokens[start + 1].value !== 'extend') return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          if (l = checkSelectorsGroup(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          if (l = checkOptional(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        function getExtend1() {
+          var startPos = pos;
+          var x = [].concat([getAtkeyword()], getSC(), getSelectorsGroup(), getSC(), [getOptional()]);
+
+          var token = tokens[startPos];
+          return newNode(NodeType.ExtendType, x, token.ln, token.col);
+        }
+
+        /**
          * Checks if token is part of an extend without `!optional` flag.
          * @param {Number} i
-         */function checkExtend2(i){var start=i;var l;if(i >= tokensLength)return 0;if(l = checkAtkeyword(i))i += l;else return 0;if(tokens[start + 1].value !== 'extend')return 0;if(l = checkSC(i))i += l;else return 0;if(l = checkSelectorsGroup(i))i += l;else return 0;return i - start;}function getExtend2(){var startPos=pos;var x=[].concat([getAtkeyword()],getSC(),getSelectorsGroup());var token=tokens[startPos];return newNode(NodeType.ExtendType,x,token.ln,token.col);} /**
+         */
+        function checkExtend2(i) {
+          var start = i;
+          var l;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (tokens[start + 1].value !== 'extend') return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          if (l = checkSelectorsGroup(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        function getExtend2() {
+          var startPos = pos;
+          var x = [].concat([getAtkeyword()], getSC(), getSelectorsGroup());
+          var token = tokens[startPos];
+          return newNode(NodeType.ExtendType, x, token.ln, token.col);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkFunction(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;return i < tokensLength && tokens[i].type === TokenType.LeftParenthesis?tokens[i].right - start + 1:0;} /**
+         */
+        function checkFunction(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          return i < tokensLength && tokens[i].type === TokenType.LeftParenthesis ? tokens[i].right - start + 1 : 0;
+        }
+
+        /**
          * @returns {Array}
-         */function getFunction(){var startPos=pos;var x=getIdentOrInterpolation();var body=undefined;body = getArguments();x.push(body);var token=tokens[startPos];return newNode(NodeType.FunctionType,x,token.ln,token.col);} /**
+         */
+        function getFunction() {
+          var startPos = pos;
+          var x = getIdentOrInterpolation();
+          var body = void 0;
+
+          body = getArguments();
+
+          x.push(body);
+
+          var token = tokens[startPos];
+          return newNode(NodeType.FunctionType, x, token.ln, token.col);
+        }
+
+        /**
          * @returns {Array}
-         */function getArguments(){var startPos=pos;var x=[];var body=undefined;var token=tokens[startPos];var line=token.ln;var column=token.col;pos++;while(pos < tokensLength && tokens[pos].type !== TokenType.RightParenthesis) {if(checkDeclaration(pos))x.push(getDeclaration());else if(checkArgument(pos)){body = getArgument();if(typeof body.content === 'string')x.push(body);else x = x.concat(body);}else if(checkClass(pos))x.push(getClass());else throwError();}var end=getLastPosition(x,line,column,1);pos++;return newNode(NodeType.ArgumentsType,x,token.ln,token.col,end);} /**
+         */
+        function getArguments() {
+          var startPos = pos;
+          var x = [];
+          var body = void 0;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+
+          pos++;
+
+          while (pos < tokensLength && tokens[pos].type !== TokenType.RightParenthesis) {
+            if (checkSingleValueDeclaration(pos)) x.push(getSingleValueDeclaration());else if (checkArgument(pos)) {
+              body = getArgument();
+              if (typeof body.content === 'string') x.push(body);else x = x.concat(body);
+            } else if (checkClass(pos)) x.push(getClass());else throwError();
+          }
+
+          var end = getLastPosition(x, line, column, 1);
+          pos++;
+
+          return newNode(NodeType.ArgumentsType, x, token.ln, token.col, end);
+        }
+
+        /**
          * Check if token is part of an identifier
          * @param {Number} i Token's index number
          * @returns {Number} Length of the identifier
-         */function checkIdent(i){var start=i;var interpolations=[];var wasIdent=undefined;var wasInt=false;var l=undefined;if(i >= tokensLength)return 0; // Check if token is part of an identifier starting with `_`:
-        if(tokens[i].type === TokenType.LowLine)return checkIdentLowLine(i);if(tokens[i].type === TokenType.HyphenMinus && tokens[i + 1].type === TokenType.DecimalNumber)return 0; // If token is a character, `-`, `$` or `*`, skip it & continue:
-        if(l = _checkIdent(i))i += l;else return 0; // Remember if previous token's type was identifier:
-        wasIdent = tokens[i - 1].type === TokenType.Identifier;while(i < tokensLength) {l = _checkIdent(i);if(!l)break;wasIdent = true;i += l;}if(!wasIdent && !wasInt && tokens[start].type !== TokenType.Asterisk)return 0;tokens[start].ident_last = i - 1;if(interpolations.length)tokens[start].interpolations = interpolations;return i - start;}function _checkIdent(i){if(tokens[i].type === TokenType.HyphenMinus || tokens[i].type === TokenType.Identifier || tokens[i].type === TokenType.DollarSign || tokens[i].type === TokenType.LowLine || tokens[i].type === TokenType.DecimalNumber || tokens[i].type === TokenType.Asterisk)return 1;return 0;} /**
-         * Check if token is part of an identifier starting with `_`
-         * @param {Number} i Token's index number
-         * @returns {Number} Length of the identifier
-         */function checkIdentLowLine(i){var start=i;if(i++ >= tokensLength)return 0;for(;i < tokensLength;i++) {if(tokens[i].type !== TokenType.HyphenMinus && tokens[i].type !== TokenType.DecimalNumber && tokens[i].type !== TokenType.LowLine && tokens[i].type !== TokenType.Identifier)break;} // Save index number of the last token of the identifier:
-        tokens[start].ident_last = i - 1;return i - start;} /**
+         */
+        function checkIdent(i) {
+          var start = i;
+
+          if (i >= tokensLength) return 0;
+
+          // Check if token is part of a negative number
+          if (tokens[i].type === TokenType.HyphenMinus && tokens[i + 1].type === TokenType.DecimalNumber) return 0;
+
+          if (tokens[i].type === TokenType.HyphenMinus) i++;
+
+          if (checkInterpolation(i)) {
+            tokens[start].ident_last = i - 1;
+            return i - start;
+          }
+
+          if (tokens[i].type === TokenType.LowLine || tokens[i].type === TokenType.Identifier) i++;else return 0;
+
+          for (; i < tokensLength; i++) {
+            if (tokens[i].type !== TokenType.HyphenMinus && tokens[i].type !== TokenType.LowLine && tokens[i].type !== TokenType.Identifier && tokens[i].type !== TokenType.DecimalNumber) break;
+          }
+
+          tokens[start].ident_last = i - 1;
+
+          return i - start;
+        }
+
+        /**
          * Get node with an identifier
          * @returns {Array} `['ident', x]` where `x` is identifier's name
-         */function getIdent(){var startPos=pos;var x=joinValues(pos,tokens[pos].ident_last);pos = tokens[pos].ident_last + 1;var token=tokens[startPos];return newNode(NodeType.IdentType,x,token.ln,token.col);}function checkIdentOrInterpolation(i){var start=i;var l=undefined;while(i < tokensLength) {if(l = checkInterpolation(i) || checkIdent(i))i += l;else break;}return i - start;}function getIdentOrInterpolation(){var x=[];while(pos < tokensLength) {if(checkInterpolation(pos))x.push(getInterpolation());else if(checkIdent(pos))x.push(getIdent());else break;}return x;} /**
+         */
+        function getIdent() {
+          var startPos = pos;
+          var x = joinValues(pos, tokens[pos].ident_last);
+
+          pos = tokens[pos].ident_last + 1;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.IdentType, x, token.ln, token.col);
+        }
+
+        /**
+         * @param {number} i Token's index number
+         * @returns {number} Length of the identifier
+         */
+        function checkPartialIdent(i) {
+          var start = i;
+
+          if (i >= tokensLength) return 0;
+
+          for (; i < tokensLength; i++) {
+            if (tokens[i].type !== TokenType.HyphenMinus && tokens[i].type !== TokenType.LowLine && tokens[i].type !== TokenType.Identifier && tokens[i].type !== TokenType.DecimalNumber) break;
+          }
+
+          tokens[start].ident_last = i - 1;
+
+          return i - start;
+        }
+
+        function checkIdentOrInterpolation(i) {
+          var start = i;
+          var l = void 0;
+          var prevIsInterpolation = false;
+
+          while (i < tokensLength) {
+            if (l = checkInterpolation(i)) {
+              tokens[i].ii_type = 1;
+              i += l;
+              prevIsInterpolation = true;
+            } else if (l = checkIdent(i)) {
+              tokens[i].ii_type = 2;
+              i += l;
+              prevIsInterpolation = false;
+            } else if (prevIsInterpolation && (l = checkPartialIdent(i))) {
+              tokens[i].ii_type = 3;
+              i += l;
+              prevIsInterpolation = false;
+            } else break;
+          }
+
+          return i - start;
+        }
+
+        function getIdentOrInterpolation() {
+          var x = [];
+
+          while (pos < tokensLength) {
+            var tokenType = tokens[pos].ii_type;
+
+            if (tokenType === 1) {
+              x.push(getInterpolation());
+            } else if (tokenType === 2 || tokenType === 3) {
+              x.push(getIdent());
+            } else break;
+          }
+
+          return x;
+        }
+
+        /**
          * Check if token is part of `!important` word
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkImportant(i){var start=i;var l=undefined;if(i >= tokensLength || tokens[i++].type !== TokenType.ExclamationMark)return 0;if(l = checkSC(i))i += l;if(tokens[i].value === 'important'){tokens[start].importantEnd = i;return i - start + 1;}else {return 0;}} /**
+         */
+        function checkImportant(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength || tokens[i++].type !== TokenType.ExclamationMark) return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].value === 'important') {
+            tokens[start].importantEnd = i;
+            return i - start + 1;
+          } else {
+            return 0;
+          }
+        }
+
+        /**
          * Get node with `!important` word
          * @returns {Array} `['important', sc]` where `sc` is optional whitespace
-         */function getImportant(){var token=tokens[pos];var line=token.ln;var column=token.col;var content=joinValues(pos,token.importantEnd);pos = token.importantEnd + 1;return newNode(NodeType.ImportantType,content,line,column);} /**
+         */
+        function getImportant() {
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = joinValues(pos, token.importantEnd);
+
+          pos = token.importantEnd + 1;
+
+          return newNode(NodeType.ImportantType, content, line, column);
+        }
+
+        /**
          * Check if token is part of an included mixin (`@include` or `@extend`
          *      directive).
          * @param {Number} i Token's index number
          * @returns {Number} Length of the included mixin
-         */function checkInclude(i){var l;if(i >= tokensLength)return 0;if(l = checkInclude1(i))tokens[i].include_type = 1;else if(l = checkInclude2(i))tokens[i].include_type = 2;else if(l = checkInclude3(i))tokens[i].include_type = 3;else if(l = checkInclude4(i))tokens[i].include_type = 4;else if(l = checkInclude5(i))tokens[i].include_type = 5;return l;} /**
+         */
+        function checkInclude(i) {
+          var l;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkInclude1(i)) tokens[i].include_type = 1;else if (l = checkInclude2(i)) tokens[i].include_type = 2;else if (l = checkInclude3(i)) tokens[i].include_type = 3;else if (l = checkInclude4(i)) tokens[i].include_type = 4;else if (l = checkInclude5(i)) tokens[i].include_type = 5;
+
+          return l;
+        }
+
+        /**
          * Check if token is part of `!global` word
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkGlobal(i){var start=i;var l=undefined;if(i >= tokensLength || tokens[i++].type !== TokenType.ExclamationMark)return 0;if(l = checkSC(i))i += l;if(tokens[i].value === 'global'){tokens[start].globalEnd = i;return i - start + 1;}else {return 0;}} /**
+         */
+        function checkGlobal(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength || tokens[i++].type !== TokenType.ExclamationMark) return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].value === 'global') {
+            tokens[start].globalEnd = i;
+            return i - start + 1;
+          } else {
+            return 0;
+          }
+        }
+
+        /**
          * Get node with `!global` word
-         */function getGlobal(){var token=tokens[pos];var line=token.ln;var column=token.col;var content=joinValues(pos,token.globalEnd);pos = token.globalEnd + 1;return newNode(NodeType.GlobalType,content,line,column);} /**
+         */
+        function getGlobal() {
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = joinValues(pos, token.globalEnd);
+
+          pos = token.globalEnd + 1;
+
+          return newNode(NodeType.GlobalType, content, line, column);
+        }
+
+        /**
          * Get node with included mixin
          * @returns {Array} `['include', x]`
-         */function getInclude(){switch(tokens[pos].include_type){case 1:return getInclude1();case 2:return getInclude2();case 3:return getInclude3();case 4:return getInclude4();case 5:return getInclude5();}} /**
+         */
+        function getInclude() {
+          switch (tokens[pos].include_type) {
+            case 1:
+              return getInclude1();
+            case 2:
+              return getInclude2();
+            case 3:
+              return getInclude3();
+            case 4:
+              return getInclude4();
+            case 5:
+              return getInclude5();
+          }
+        }
+
+        /**
          * Get node with included mixin with keyfames selector like
          * `@include nani(foo) { 0% {}}`
          * @param {Number} i Token's index number
          * @returns {Number} Length of the include
-         */function checkInclude1(i){var start=i;var l=undefined;if(l = checkAtkeyword(i))i += l;else return 0;if(tokens[start + 1].value !== 'include')return 0;if(l = checkSC(i))i += l;else return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkArguments(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkKeyframesBlocks(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkInclude1(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (tokens[start + 1].value !== 'include') return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkArguments(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkKeyframesBlocks(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * Get node with included mixin with keyfames selector like
          * `@include nani(foo) { 0% {}}`
          * @returns {Array} `['include', ['atkeyword', x], sc, ['selector', y], sc,
          *      ['arguments', z], sc, ['block', q], sc` where `x` is `include` or
          *      `extend`, `y` is mixin's identifier (selector), `z` are arguments
          *      passed to the mixin, `q` is block passed to the mixin containing a
          *      ruleset > selector > keyframesSelector, and `sc` are optional
          *      whitespaces
-         */function getInclude1(){var startPos=pos;var x=[].concat(getAtkeyword(),getSC(),getIdentOrInterpolation(),getSC(),getArguments(),getSC(),getKeyframesBlocks());var token=tokens[startPos];return newNode(NodeType.IncludeType,x,token.ln,token.col);} /**
+         */
+        function getInclude1() {
+          var startPos = pos;
+          var x = [].concat(getAtkeyword(), getSC(), getIdentOrInterpolation(), getSC(), getArguments(), getSC(), getKeyframesBlocks());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.IncludeType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of an included mixin like `@include nani(foo) {...}`
          * @param {Number} i Token's index number
          * @returns {Number} Length of the include
-         */function checkInclude2(i){var start=i;var l=undefined;if(l = checkAtkeyword(i))i += l;else return 0;if(tokens[start + 1].value !== 'include')return 0;if(l = checkSC(i))i += l;else return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkArguments(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkBlock(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkInclude2(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (tokens[start + 1].value !== 'include') return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkArguments(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkBlock(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * Get node with included mixin like `@include nani(foo) {...}`
          * @returns {Array} `['include', ['atkeyword', x], sc, ['selector', y], sc,
          *      ['arguments', z], sc, ['block', q], sc` where `x` is `include` or
          *      `extend`, `y` is mixin's identifier (selector), `z` are arguments
          *      passed to the mixin, `q` is block passed to the mixin and `sc`
          *      are optional whitespaces
-         */function getInclude2(){var startPos=pos;var x=[].concat(getAtkeyword(),getSC(),getIdentOrInterpolation(),getSC(),getArguments(),getSC(),getBlock());var token=tokens[startPos];return newNode(NodeType.IncludeType,x,token.ln,token.col);} /**
+         */
+        function getInclude2() {
+          var startPos = pos;
+          var x = [].concat(getAtkeyword(), getSC(), getIdentOrInterpolation(), getSC(), getArguments(), getSC(), getBlock());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.IncludeType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of an included mixin like `@include nani(foo)`
          * @param {Number} i Token's index number
          * @returns {Number} Length of the include
-         */function checkInclude3(i){var start=i;var l=undefined;if(l = checkAtkeyword(i))i += l;else return 0;if(tokens[start + 1].value !== 'include')return 0;if(l = checkSC(i))i += l;else return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkArguments(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkInclude3(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (tokens[start + 1].value !== 'include') return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkArguments(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * Get node with included mixin like `@include nani(foo)`
          * @returns {Array} `['include', ['atkeyword', x], sc, ['selector', y], sc,
          *      ['arguments', z], sc]` where `x` is `include` or `extend`, `y` is
          *      mixin's identifier (selector), `z` are arguments passed to the
          *      mixin and `sc` are optional whitespaces
-         */function getInclude3(){var startPos=pos;var x=[].concat(getAtkeyword(),getSC(),getIdentOrInterpolation(),getSC(),getArguments());var token=tokens[startPos];return newNode(NodeType.IncludeType,x,token.ln,token.col);} /**
+         */
+        function getInclude3() {
+          var startPos = pos;
+          var x = [].concat(getAtkeyword(), getSC(), getIdentOrInterpolation(), getSC(), getArguments());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.IncludeType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of an included mixin with a content block passed
          *      as an argument (e.g. `@include nani {...}`)
          * @param {Number} i Token's index number
          * @returns {Number} Length of the mixin
-         */function checkInclude4(i){var start=i;var l=undefined;if(l = checkAtkeyword(i))i += l;else return 0;if(tokens[start + 1].value !== 'include')return 0;if(l = checkSC(i))i += l;else return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkBlock(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkInclude4(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (tokens[start + 1].value !== 'include') return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkBlock(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * Get node with an included mixin with a content block passed
          *      as an argument (e.g. `@include nani {...}`)
          * @returns {Array} `['include', x]`
-         */function getInclude4(){var startPos=pos;var x=[].concat(getAtkeyword(),getSC(),getIdentOrInterpolation(),getSC(),getBlock());var token=tokens[startPos];return newNode(NodeType.IncludeType,x,token.ln,token.col);} /**
+         */
+        function getInclude4() {
+          var startPos = pos;
+          var x = [].concat(getAtkeyword(), getSC(), getIdentOrInterpolation(), getSC(), getBlock());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.IncludeType, x, token.ln, token.col);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkInclude5(i){var start=i;var l=undefined;if(l = checkAtkeyword(i))i += l;else return 0;if(tokens[start + 1].value !== 'include')return 0;if(l = checkSC(i))i += l;else return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkInclude5(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (tokens[start + 1].value !== 'include') return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * @returns {Array} `['include', x]`
-         */function getInclude5(){var startPos=pos;var x=[].concat(getAtkeyword(),getSC(),getIdentOrInterpolation());var token=tokens[startPos];return newNode(NodeType.IncludeType,x,token.ln,token.col);} /**
+         */
+        function getInclude5() {
+          var startPos = pos;
+          var x = [].concat(getAtkeyword(), getSC(), getIdentOrInterpolation());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.IncludeType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of an interpolated variable (e.g. `#{$nani}`).
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkInterpolation(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(tokens[i].type !== TokenType.NumberSign || !tokens[i + 1] || tokens[i + 1].type !== TokenType.LeftCurlyBracket)return 0;i += 2;while(tokens[i].type !== TokenType.RightCurlyBracket) {if(l = checkArgument(i))i += l;else return 0;}return tokens[i].type === TokenType.RightCurlyBracket?i - start + 1:0;} /**
+         */
+        function checkInterpolation(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].type !== TokenType.NumberSign || !tokens[i + 1] || tokens[i + 1].type !== TokenType.LeftCurlyBracket) return 0;
+
+          i += 2;
+
+          while (tokens[i].type !== TokenType.RightCurlyBracket) {
+            if (l = checkArgument(i)) i += l;else return 0;
+          }
+
+          return tokens[i].type === TokenType.RightCurlyBracket ? i - start + 1 : 0;
+        }
+
+        /**
          * Get node with an interpolated variable
          * @returns {Array} `['interpolation', x]`
-         */function getInterpolation(){var startPos=pos;var x=[];var token=tokens[startPos];var line=token.ln;var column=token.col; // Skip `#{`:
-        pos += 2;while(pos < tokensLength && tokens[pos].type !== TokenType.RightCurlyBracket) {var body=getArgument();if(typeof body.content === 'string')x.push(body);else x = x.concat(body);}var end=getLastPosition(x,line,column,1); // Skip `}`:
-        pos++;return newNode(NodeType.InterpolationType,x,token.ln,token.col,end);}function checkKeyframesBlock(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkKeyframesSelector(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkBlock(i))i += l;else return 0;return i - start;}function getKeyframesBlock(){var type=NodeType.RulesetType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[].concat([getKeyframesSelector()],getSC(),[getBlock()]);return newNode(type,content,line,column);}function checkKeyframesBlocks(i){var start=i;var l=undefined;if(i < tokensLength && tokens[i].type === TokenType.LeftCurlyBracket)i++;else return 0;if(l = checkSC(i))i += l;if(l = checkKeyframesBlock(i))i += l;else return 0;while(tokens[i].type !== TokenType.RightCurlyBracket) {if(l = checkSC(i))i += l;else if(l = checkKeyframesBlock(i))i += l;else break;}if(i < tokensLength && tokens[i].type === TokenType.RightCurlyBracket)i++;else return 0;return i - start;}function getKeyframesBlocks(){var type=NodeType.BlockType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[];var keyframesBlocksEnd=token.right; // Skip `{`.
-        pos++;while(pos < keyframesBlocksEnd) {if(checkSC(pos))content = content.concat(getSC());else if(checkKeyframesBlock(pos))content.push(getKeyframesBlock());}var end=getLastPosition(content,line,column,1); // Skip `}`.
-        pos++;return newNode(type,content,line,column,end);} /**
+         */
+        function getInterpolation() {
+          var startPos = pos;
+          var x = [];
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+
+          // Skip `#{`:
+          pos += 2;
+
+          while (pos < tokensLength && tokens[pos].type !== TokenType.RightCurlyBracket) {
+            var body = getArgument();
+            if (typeof body.content === 'string') x.push(body);else x = x.concat(body);
+          }
+
+          var end = getLastPosition(x, line, column, 1);
+
+          // Skip `}`:
+          pos++;
+
+          return newNode(NodeType.InterpolationType, x, token.ln, token.col, end);
+        }
+
+        /**
+         * Check a single keyframe block - `5% {}`
+         * @param {Number} i
+         * @returns {Number}
+         */
+        function checkKeyframesBlock(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkKeyframesSelectorsGroup(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkBlock(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * Get a single keyframe block - `5% {}`
+         * @returns {Node}
+         */
+        function getKeyframesBlock() {
+          var type = NodeType.RulesetType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [].concat(getKeyframesSelectorsGroup(), getSC(), [getBlock()]);
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check all keyframe blocks - `5% {} 100% {}`
+         * @param {Number} i
+         * @returns {Number}
+         */
+        function checkKeyframesBlocks(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i < tokensLength && tokens[i].type === TokenType.LeftCurlyBracket) i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkKeyframesBlock(i)) i += l;else return 0;
+
+          while (tokens[i].type !== TokenType.RightCurlyBracket) {
+            if (l = checkSC(i)) i += l;else if (l = checkKeyframesBlock(i)) i += l;else break;
+          }
+
+          if (i < tokensLength && tokens[i].type === TokenType.RightCurlyBracket) i++;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * Get all keyframe blocks - `5% {} 100% {}`
+         * @returns {Node}
+         */
+        function getKeyframesBlocks() {
+          var type = NodeType.BlockType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+          var keyframesBlocksEnd = token.right;
+
+          // Skip `{`.
+          pos++;
+
+          while (pos < keyframesBlocksEnd) {
+            if (checkSC(pos)) content = content.concat(getSC());else if (checkKeyframesBlock(pos)) content.push(getKeyframesBlock());else if (checkAtrule(pos)) content.push(getAtrule()); // @content
+            else break;
+          }
+
+          var end = getLastPosition(content, line, column, 1);
+
+          // Skip `}`.
+          pos++;
+
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
          * Check if token is part of a @keyframes rule.
          * @param {Number} i Token's index number
          * @return {Number} Length of the @keyframes rule
-         */function checkKeyframesRule(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkAtkeyword(i))i += l;else return 0;var atruleName=joinValues2(i - l,l);if(atruleName.indexOf('keyframes') === -1)return 0;if(l = checkSC(i))i += l;else return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkKeyframesBlocks(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkKeyframesRule(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          var atruleName = joinValues2(i - l, l);
+          if (atruleName.indexOf('keyframes') === -1) return 0;
+
+          if (l = checkSC(i)) i += l;else return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkKeyframesBlocks(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * @return {Node}
-         */function getKeyframesRule(){var type=NodeType.AtruleType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[].concat([getAtkeyword()],getSC(),getIdentOrInterpolation(),getSC(),[getKeyframesBlocks()]);return newNode(type,content,line,column);}function checkKeyframesSelector(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkIdent(i)){ // Valid selectors are only `from` and `to`.
-        var selector=joinValues2(i,l);if(selector !== 'from' && selector !== 'to')return 0;i += l;tokens[start].keyframesSelectorType = 1;}else if(l = checkPercentage(i)){i += l;tokens[start].keyframesSelectorType = 2;}else if(l = checkInterpolation(i)){i += l;tokens[start].keyframesSelectorType = 3;}else {return 0;}return i - start;}function getKeyframesSelector(){var keyframesSelectorType=NodeType.KeyframesSelectorType;var selectorType=NodeType.SelectorType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[];if(token.keyframesSelectorType === 1){content.push(getIdent());}else if(token.keyframesSelectorType === 2){content.push(getPercentage());}else {content.push(getInterpolation());}var keyframesSelector=newNode(keyframesSelectorType,content,line,column);return newNode(selectorType,[keyframesSelector],line,column);} /**
+         */
+        function getKeyframesRule() {
+          var type = NodeType.AtruleType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [].concat([getAtkeyword()], getSC(), getIdentOrInterpolation(), getSC(), [getKeyframesBlocks()]);
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check a single keyframe selector - `5%`, `from` etc
+         * @param {Number} i
+         * @returns {Number}
+         */
+        function checkKeyframesSelector(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdent(i)) {
+            // Valid selectors are only `from` and `to`.
+            var selector = joinValues2(i, l);
+            if (selector !== 'from' && selector !== 'to') return 0;
+
+            i += l;
+            tokens[start].keyframesSelectorType = 1;
+          } else if (l = checkPercentage(i)) {
+            i += l;
+            tokens[start].keyframesSelectorType = 2;
+          } else if (l = checkInterpolation(i)) {
+            i += l;
+            tokens[start].keyframesSelectorType = 3;
+          } else {
+            return 0;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * Get a single keyframe selector
+         * @returns {Node}
+         */
+        function getKeyframesSelector() {
+          var keyframesSelectorType = NodeType.KeyframesSelectorType;
+          var selectorType = NodeType.SelectorType;
+
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          if (token.keyframesSelectorType === 1) {
+            content.push(getIdent());
+          } else if (token.keyframesSelectorType === 2) {
+            content.push(getPercentage());
+          } else if (token.keyframesSelectorType === 3) {
+            content.push(getInterpolation());
+          }
+
+          var keyframesSelector = newNode(keyframesSelectorType, content, line, column);
+          return newNode(selectorType, [keyframesSelector], line, column);
+        }
+
+        /**
+         * Check the keyframe's selector groups
+         * @param {Number} i
+         * @returns {Number}
+         */
+        function checkKeyframesSelectorsGroup(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkKeyframesSelector(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var sb = checkSC(i);
+            var c = checkDelim(i + sb);
+            if (!c) break;
+            var sa = checkSC(i + sb + c);
+            if (l = checkKeyframesSelector(i + sb + c + sa)) i += sb + c + sa + l;else break;
+          }
+
+          tokens[start].selectorsGroupEnd = i;
+
+          return i - start;
+        }
+
+        /**
+         * Get the keyframe's selector groups
+         * @returns {Array} An array of keyframe selectors
+         */
+        function getKeyframesSelectorsGroup() {
+          var selectorsGroup = [];
+          var selectorsGroupEnd = tokens[pos].selectorsGroupEnd;
+
+          selectorsGroup.push(getKeyframesSelector());
+
+          while (pos < selectorsGroupEnd) {
+            selectorsGroup = selectorsGroup.concat(getSC());
+            selectorsGroup.push(getDelim());
+            selectorsGroup = selectorsGroup.concat(getSC());
+            selectorsGroup.push(getKeyframesSelector());
+          }
+
+          return selectorsGroup;
+        }
+
+        /**
          * Check if token is part of a loop.
          * @param {Number} i Token's index number
          * @returns {Number} Length of the loop
-         */function checkLoop(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkAtkeyword(i))i += l;else return 0;if(['for','each','while'].indexOf(tokens[start + 1].value) < 0)return 0;while(i < tokensLength) {if(l = checkBlock(i)){i += l;break;}else if(l = checkVariable(i) || checkNumber(i) || checkInterpolation(i) || checkIdent(i) || checkSC(i) || checkOperator(i) || checkCombinator(i) || checkString(i))i += l;else return 0;}return i - start;} /**
+         */
+        function checkLoop(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkAtkeyword(i)) i += l;else return 0;
+
+          if (['for', 'each', 'while'].indexOf(tokens[start + 1].value) < 0) return 0;
+
+          while (i < tokensLength) {
+            if (l = checkBlock(i)) {
+              i += l;
+              break;
+            } else if (l = checkVariable(i) || checkNumber(i) || checkInterpolation(i) || checkIdent(i) || checkSC(i) || checkOperator(i) || checkCombinator(i) || checkString(i)) i += l;else return 0;
+          }
+
+          return i - start;
+        }
+
+        /**
          * Get node with a loop.
          * @returns {Array} `['loop', x]`
-         */function getLoop(){var startPos=pos;var x=[];x.push(getAtkeyword());while(pos < tokensLength) {if(checkBlock(pos)){x.push(getBlock());break;}else if(checkVariable(pos))x.push(getVariable());else if(checkNumber(pos))x.push(getNumber());else if(checkInterpolation(pos))x.push(getInterpolation());else if(checkIdent(pos))x.push(getIdent());else if(checkOperator(pos))x.push(getOperator());else if(checkCombinator(pos))x.push(getCombinator());else if(checkSC(pos))x = x.concat(getSC());else if(checkString(pos))x.push(getString());}var token=tokens[startPos];return newNode(NodeType.LoopType,x,token.ln,token.col);} /**
+         */
+        function getLoop() {
+          var startPos = pos;
+          var x = [];
+
+          x.push(getAtkeyword());
+
+          while (pos < tokensLength) {
+            if (checkBlock(pos)) {
+              x.push(getBlock());
+              break;
+            } else if (checkVariable(pos)) x.push(getVariable());else if (checkNumber(pos)) x.push(getNumber());else if (checkInterpolation(pos)) x.push(getInterpolation());else if (checkIdent(pos)) x.push(getIdent());else if (checkOperator(pos)) x.push(getOperator());else if (checkCombinator(pos)) x.push(getCombinator());else if (checkSC(pos)) x = x.concat(getSC());else if (checkString(pos)) x.push(getString());
+          }
+
+          var token = tokens[startPos];
+          return newNode(NodeType.LoopType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of a mixin
          * @param {Number} i Token's index number
          * @returns {Number} Length of the mixin
-         */function checkMixin(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if((l = checkAtkeyword(i)) && tokens[i + 1].value === 'mixin')i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkArguments(i))i += l;if(l = checkSC(i))i += l;if(l = checkBlock(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkMixin(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if ((l = checkAtkeyword(i)) && tokens[i + 1].value === 'mixin') i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkArguments(i)) i += l;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkBlock(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * Get node with a mixin
          * @returns {Array} `['mixin', x]`
-         */function getMixin(){var startPos=pos;var x=[getAtkeyword()];x = x.concat(getSC());if(checkIdentOrInterpolation(pos))x = x.concat(getIdentOrInterpolation());x = x.concat(getSC());if(checkArguments(pos))x.push(getArguments());x = x.concat(getSC());if(checkBlock(pos))x.push(getBlock());var token=tokens[startPos];return newNode(NodeType.MixinType,x,token.ln,token.col);} /**
+         */
+        function getMixin() {
+          var startPos = pos;
+          var x = [getAtkeyword()];
+
+          x = x.concat(getSC());
+
+          if (checkIdentOrInterpolation(pos)) x = x.concat(getIdentOrInterpolation());
+
+          x = x.concat(getSC());
+
+          if (checkArguments(pos)) x.push(getArguments());
+
+          x = x.concat(getSC());
+
+          if (checkBlock(pos)) x.push(getBlock());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.MixinType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is a namespace sign (`|`)
          * @param {Number} i Token's index number
          * @returns {Number} `1` if token is `|`, `0` if not
-         */function checkNamespace(i){return i < tokensLength && tokens[i].type === TokenType.VerticalLine?1:0;} /**
+         */
+        function checkNamespace(i) {
+          return i < tokensLength && tokens[i].type === TokenType.VerticalLine ? 1 : 0;
+        }
+
+        /**
          * Get node with a namespace sign
          * @returns {Array} `['namespace']`
-         */function getNamespace(){var startPos=pos;pos++;var token=tokens[startPos];return newNode(NodeType.NamespaceType,'|',token.ln,token.col);} /**
+         */
+        function getNamespace() {
+          var startPos = pos;
+
+          pos++;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.NamespaceType, '|', token.ln, token.col);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkNmName2(i){if(tokens[i].type === TokenType.Identifier)return 1;else if(tokens[i].type !== TokenType.DecimalNumber)return 0;i++;return i < tokensLength && tokens[i].type === TokenType.Identifier?2:1;} /**
+         */
+        function checkNmName2(i) {
+          if (tokens[i].type === TokenType.Identifier) return 1;else if (tokens[i].type !== TokenType.DecimalNumber) return 0;
+
+          i++;
+
+          return i < tokensLength && tokens[i].type === TokenType.Identifier ? 2 : 1;
+        }
+
+        /**
          * @returns {String}
-         */function getNmName2(){var s=tokens[pos].value;if(tokens[pos++].type === TokenType.DecimalNumber && pos < tokensLength && tokens[pos].type === TokenType.Identifier)s += tokens[pos++].value;return s;} /**
+         */
+        function getNmName2() {
+          var s = tokens[pos].value;
+
+          if (tokens[pos++].type === TokenType.DecimalNumber && pos < tokensLength && tokens[pos].type === TokenType.Identifier) s += tokens[pos++].value;
+
+          return s;
+        }
+
+        /**
          * Check if token is part of a number
          * @param {Number} i Token's index number
          * @returns {Number} Length of number
-         */function checkNumber(i){if(i >= tokensLength)return 0;if(tokens[i].number_l)return tokens[i].number_l; // `10`:
-        if(i < tokensLength && tokens[i].type === TokenType.DecimalNumber && (!tokens[i + 1] || tokens[i + 1] && tokens[i + 1].type !== TokenType.FullStop))return tokens[i].number_l = 1,tokens[i].number_l; // `10.`:
-        if(i < tokensLength && tokens[i].type === TokenType.DecimalNumber && tokens[i + 1] && tokens[i + 1].type === TokenType.FullStop && (!tokens[i + 2] || tokens[i + 2].type !== TokenType.DecimalNumber))return tokens[i].number_l = 2,tokens[i].number_l; // `.10`:
-        if(i < tokensLength && tokens[i].type === TokenType.FullStop && tokens[i + 1].type === TokenType.DecimalNumber)return tokens[i].number_l = 2,tokens[i].number_l; // `10.10`:
-        if(i < tokensLength && tokens[i].type === TokenType.DecimalNumber && tokens[i + 1] && tokens[i + 1].type === TokenType.FullStop && tokens[i + 2] && tokens[i + 2].type === TokenType.DecimalNumber)return tokens[i].number_l = 3,tokens[i].number_l;return 0;} /**
+         */
+        function checkNumber(i) {
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].number_l) return tokens[i].number_l;
+
+          // `10`:
+          if (i < tokensLength && tokens[i].type === TokenType.DecimalNumber && (!tokens[i + 1] || tokens[i + 1] && tokens[i + 1].type !== TokenType.FullStop)) {
+            tokens[i].number_l = 1;
+            return 1;
+          }
+
+          // `10.`:
+          if (i < tokensLength && tokens[i].type === TokenType.DecimalNumber && tokens[i + 1] && tokens[i + 1].type === TokenType.FullStop && (!tokens[i + 2] || tokens[i + 2].type !== TokenType.DecimalNumber)) {
+            tokens[i].number_l = 2;
+            return 2;
+          }
+
+          // `.10`:
+          if (i < tokensLength && tokens[i].type === TokenType.FullStop && tokens[i + 1].type === TokenType.DecimalNumber) {
+            tokens[i].number_l = 2;
+            return 2;
+          }
+
+          // `10.10`:
+          if (i < tokensLength && tokens[i].type === TokenType.DecimalNumber && tokens[i + 1] && tokens[i + 1].type === TokenType.FullStop && tokens[i + 2] && tokens[i + 2].type === TokenType.DecimalNumber) {
+            tokens[i].number_l = 3;
+            return 3;
+          }
+
+          return 0;
+        }
+
+        /**
          * Get node with number
          * @returns {Array} `['number', x]` where `x` is a number converted
          *      to string.
-         */function getNumber(){var s='';var startPos=pos;var l=tokens[pos].number_l;for(var j=0;j < l;j++) {s += tokens[pos + j].value;}pos += l;var token=tokens[startPos];return newNode(NodeType.NumberType,s,token.ln,token.col);} /**
+         */
+        function getNumber() {
+          var s = '';
+          var startPos = pos;
+          var l = tokens[pos].number_l;
+
+          for (var j = 0; j < l; j++) {
+            s += tokens[pos + j].value;
+          }
+
+          pos += l;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.NumberType, s, token.ln, token.col);
+        }
+
+        /**
          * Check if token is an operator (`/`, `%`, `,`, `:` or `=`).
          * @param {Number} i Token's index number
          * @returns {Number} `1` if token is an operator, otherwise `0`
-         */function checkOperator(i){if(i >= tokensLength)return 0;switch(tokens[i].type){case TokenType.Solidus:case TokenType.PercentSign:case TokenType.Comma:case TokenType.Colon:case TokenType.EqualsSign:case TokenType.EqualitySign:case TokenType.InequalitySign:case TokenType.LessThanSign:case TokenType.GreaterThanSign:case TokenType.Asterisk:return 1;}return 0;} /**
+         */
+        function checkOperator(i) {
+          if (i >= tokensLength) return 0;
+
+          switch (tokens[i].type) {
+            case TokenType.Solidus:
+            case TokenType.PercentSign:
+            case TokenType.Comma:
+            case TokenType.Colon:
+            case TokenType.EqualsSign:
+            case TokenType.EqualitySign:
+            case TokenType.InequalitySign:
+            case TokenType.LessThanSign:
+            case TokenType.GreaterThanSign:
+            case TokenType.Asterisk:
+              return 1;
+          }
+
+          return 0;
+        }
+
+        /**
          * Get node with an operator
          * @returns {Array} `['operator', x]` where `x` is an operator converted
          *      to string.
-         */function getOperator(){var startPos=pos;var x=tokens[pos++].value;var token=tokens[startPos];return newNode(NodeType.OperatorType,x,token.ln,token.col);} /**
+         */
+        function getOperator() {
+          var startPos = pos;
+          var x = tokens[pos++].value;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.OperatorType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of `!optional` word
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkOptional(i){var start=i;var l=undefined;if(i >= tokensLength || tokens[i++].type !== TokenType.ExclamationMark)return 0;if(l = checkSC(i))i += l;if(tokens[i].value === 'optional'){tokens[start].optionalEnd = i;return i - start + 1;}else {return 0;}} /**
+         */
+        function checkOptional(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength || tokens[i++].type !== TokenType.ExclamationMark) return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].value === 'optional') {
+            tokens[start].optionalEnd = i;
+            return i - start + 1;
+          } else {
+            return 0;
+          }
+        }
+
+        /**
          * Get node with `!optional` word
-         */function getOptional(){var token=tokens[pos];var line=token.ln;var column=token.col;var content=joinValues(pos,token.optionalEnd);pos = token.optionalEnd + 1;return newNode(NodeType.OptionalType,content,line,column);} /**
+         */
+        function getOptional() {
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = joinValues(pos, token.optionalEnd);
+
+          pos = token.optionalEnd + 1;
+
+          return newNode(NodeType.OptionalType, content, line, column);
+        }
+
+        /**
          * Check if token is part of text inside parentheses, e.g. `(1)`
          * @param {Number} i Token's index number
          * @return {Number}
-         */function checkParentheses(i){if(i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis)return 0;return tokens[i].right - i + 1;} /**
+         */
+        function checkParentheses(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var right = tokens[i].right;
+
+          if (tokens[i].type === TokenType.LeftParenthesis) i++;else return 0;
+
+          if (i < right) {
+            var l = checkTsets(i);
+            if (l) i += l;else return 0;
+          }
+
+          i++;
+
+          return i - start;
+        }
+
+        /**
          * Get node with text inside parentheses, e.g. `(1)`
          * @return {Node}
-         */function getParentheses(){var type=NodeType.ParenthesesType;var token=tokens[pos];var line=token.ln;var column=token.col;pos++;var tsets=getTsets();var end=getLastPosition(tsets,line,column,1);pos++;return newNode(type,tsets,line,column,end);} /**
-         * Check if token is a parent selector (`&`).
+         */
+        function getParentheses() {
+          var type = NodeType.ParenthesesType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var tsets = [];
+          var right = token.right;
+
+          pos++;
+
+          if (pos < right) {
+            tsets = getTsets();
+          }
+
+          var end = getLastPosition(tsets, line, column, 1);
+          pos++;
+
+          return newNode(type, tsets, line, column, end);
+        }
+
+        /**
+         * Check if token is a parent selector, e.g. `&`
+         * @param {number} i Token's index number
+         * @return {number}
+         */
+        function checkParentSelector(i) {
+          return i < tokensLength && tokens[i].type === TokenType.Ampersand ? 1 : 0;
+        }
+
+        /**
+         * Get node with a parent selector
+         * @return {Node}
+         */
+        function getParentSelector() {
+          var startPos = pos;
+          var token = tokens[startPos];
+
+          pos++;
+
+          return newNode(NodeType.ParentSelectorType, '&', token.ln, token.col);
+        }
+
+        /**
+         * Check if token is a parent selector extension, e.g. `&--foo-bar`
+         * @param {number} i Token's index number
+         * @returns {number} Length of the parent selector extension
+         */
+        function checkParentSelectorExtension(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          while (i < tokensLength) {
+            if (l = checkIdentOrInterpolation(i) || checkPartialIdent(i)) i += l;else break;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * Get parent selector extension node
+         * @return {Node}
+         */
+        function getParentSelectorExtension() {
+          var type = NodeType.ParentSelectorExtensionType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          while (pos < tokensLength) {
+            if (checkIdentOrInterpolation(pos)) {
+              content = content.concat(getIdentOrInterpolation());
+            } else if (checkPartialIdent(pos)) {
+              content.push(getIdent());
+            } else break;
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is a parent selector with an extension or not
+         * @param {number} i Token's index number
+         * @return {number} Length of the parent selector and extension if applicable
+         */
+        function checkParentSelectorWithExtension(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkParentSelector(i)) i += l;else return 0;
+
+          if (l = checkParentSelectorExtension(i)) i += l;
+
+          return i - start;
+        }
+
+        /**
+         * Get parent selector node and extension node if applicable
+         * @return {Array}
+         */
+        function getParentSelectorWithExtension() {
+          var content = [getParentSelector()];
+
+          if (checkParentSelectorExtension(pos)) content.push(getParentSelectorExtension());
+
+          return content;
+        }
+
+        /**
+         * Check if token is part of a number or an interpolation with a percent sign
+         * (e.g. `10%`).
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkParentSelector(i){return i < tokensLength && tokens[i].type === TokenType.Ampersand?1:0;} /**
-         * Get node with a parent selector
-         */function getParentSelector(){var startPos=pos;pos++;var token=tokens[startPos];return newNode(NodeType.ParentSelectorType,'&',token.ln,token.col);}function checkParentSelectorExtension(i){if(i >= tokensLength)return 0;var start=i;var l=undefined;while(i < tokensLength) {if(l = checkNumber(i) || checkIdentOrInterpolation(i))i += l;else break;}return i - start;}function getParentSelectorExtension(){var type=NodeType.ParentSelectorExtensionType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[];while(pos < tokensLength) {if(checkNumber(pos))content.push(getNumber());else if(checkIdentOrInterpolation(pos))content = content.concat(getIdentOrInterpolation());else break;}return newNode(type,content,line,column);}function checkParentSelectorWithExtension(i){if(i >= tokensLength)return 0;var start=i;var l=undefined;if(l = checkParentSelector(i))i += l;else return 0;if(l = checkParentSelectorExtension(i))i += l;return i - start;}function getParentSelectorWithExtension(){var content=[getParentSelector()];if(checkParentSelectorExtension(pos))content.push(getParentSelectorExtension());return content;} /**
-         * Check if token is part of a number with percent sign (e.g. `10%`)
+         */
+        function checkPercentage(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkNumberOrInterpolation(i)) i += l;else return 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].type !== TokenType.PercentSign) return 0;
+
+          return i - start + 1;
+        }
+
+        /**
+         * Get a percentage node that contains either a number or an interpolation
+         * @returns {Object} The percentage node
+         */
+        function getPercentage() {
+          var startPos = pos;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+          var content = getNumberOrInterpolation();
+          var end = getLastPosition(content, line, column, 1);
+
+          // Skip %
+          pos++;
+
+          return newNode(NodeType.PercentageType, content, token.ln, token.col, end);
+        }
+
+        /**
+         * Check if token is a number or an interpolation
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkPercentage(i){var x;if(i >= tokensLength)return 0;x = checkNumber(i);if(!x || i + x >= tokensLength)return 0;return tokens[i + x].type === TokenType.PercentSign?x + 1:0;} /**
-         * Get node of number with percent sign
-         * @returns {Array} `['percentage', ['number', x]]` where `x` is a number
-         *      (without percent sign) converted to string.
-         */function getPercentage(){var startPos=pos;var x=[getNumber()];var token=tokens[startPos];var line=token.ln;var column=token.col;var end=getLastPosition(x,line,column,1);pos++;return newNode(NodeType.PercentageType,x,token.ln,token.col,end);} /**
+         */
+        function checkNumberOrInterpolation(i) {
+          var start = i;
+          var l = void 0;
+
+          while (i < tokensLength) {
+            if (l = checkInterpolation(i) || checkNumber(i)) i += l;else break;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * Get a number and/or interpolation node
+         * @returns {Array} An array containing a single or multiple nodes
+         */
+        function getNumberOrInterpolation() {
+          var content = [];
+
+          while (pos < tokensLength) {
+            if (checkInterpolation(pos)) content.push(getInterpolation());else if (checkNumber(pos)) content.push(getNumber());else break;
+          }
+
+          return content;
+        }
+
+        /**
          * Check if token is part of a placeholder selector (e.g. `%abc`).
          * @param {Number} i Token's index number
          * @returns {Number} Length of the selector
-         */function checkPlaceholder(i){var l;if(i >= tokensLength)return 0;if(tokens[i].placeholder_l)return tokens[i].placeholder_l;if(tokens[i].type === TokenType.PercentSign && (l = checkIdentOrInterpolation(i + 1))){tokens[i].placeholder_l = l + 1;return l + 1;}else return 0;} /**
+         */
+        function checkPlaceholder(i) {
+          var l;
+
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].placeholder_l) return tokens[i].placeholder_l;
+
+          if (tokens[i].type !== TokenType.PercentSign) return 0;
+
+          if (l = checkIdentOrInterpolation(i + 1)) {
+            tokens[i].placeholder_l = l + 1;
+            return l + 1;
+          } else return 0;
+        }
+
+        /**
          * Get node with a placeholder selector
          * @returns {Array} `['placeholder', ['ident', x]]` where x is a placeholder's
          *      identifier (without `%`, e.g. `abc`).
-         */function getPlaceholder(){var startPos=pos;pos++;var x=getIdentOrInterpolation();var token=tokens[startPos];return newNode(NodeType.PlaceholderType,x,token.ln,token.col);} /**
+         */
+        function getPlaceholder() {
+          var startPos = pos;
+
+          pos++;
+
+          var x = getIdentOrInterpolation();
+
+          var token = tokens[startPos];
+          return newNode(NodeType.PlaceholderType, x, token.ln, token.col);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkProgid(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(joinValues2(i,6) === 'progid:DXImageTransform.Microsoft.')i += 6;else return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(l = checkSC(i))i += l;if(tokens[i].type === TokenType.LeftParenthesis){tokens[start].progid_end = tokens[i].right;i = tokens[i].right + 1;}else return 0;return i - start;} /**
+         */
+        function checkProgid(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (joinValues2(i, 6) === 'progid:DXImageTransform.Microsoft.') i += 6;else return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].type === TokenType.LeftParenthesis) {
+            tokens[start].progid_end = tokens[i].right;
+            i = tokens[i].right + 1;
+          } else return 0;
+
+          return i - start;
+        }
+
+        /**
          * @returns {Array}
-         */function getProgid(){var startPos=pos;var progid_end=tokens[pos].progid_end;var x=joinValues(pos,progid_end);pos = progid_end + 1;var token=tokens[startPos];return newNode(NodeType.ProgidType,x,token.ln,token.col);} /**
+         */
+        function getProgid() {
+          var startPos = pos;
+          var progid_end = tokens[pos].progid_end;
+          var x = joinValues(pos, progid_end);
+
+          pos = progid_end + 1;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.ProgidType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of a property
          * @param {Number} i Token's index number
          * @returns {Number} Length of the property
-         */function checkProperty(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkVariable(i) || checkIdentOrInterpolation(i))i += l;else return 0;return i - start;} /**
+         */
+        function checkProperty(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkVariable(i) || checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
          * Get node with a property
          * @returns {Array} `['property', x]`
-         */function getProperty(){var startPos=pos;var x=[];if(checkVariable(pos)){x.push(getVariable());}else {x = x.concat(getIdentOrInterpolation());}var token=tokens[startPos];return newNode(NodeType.PropertyType,x,token.ln,token.col);} /**
+         */
+        function getProperty() {
+          var startPos = pos;
+          var x = [];
+
+          if (checkVariable(pos)) {
+            x.push(getVariable());
+          } else {
+            x = x.concat(getIdentOrInterpolation());
+          }
+
+          var token = tokens[startPos];
+          return newNode(NodeType.PropertyType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is a colon
          * @param {Number} i Token's index number
          * @returns {Number} `1` if token is a colon, otherwise `0`
-         */function checkPropertyDelim(i){return i < tokensLength && tokens[i].type === TokenType.Colon?1:0;} /**
+         */
+        function checkPropertyDelim(i) {
+          return i < tokensLength && tokens[i].type === TokenType.Colon ? 1 : 0;
+        }
+
+        /**
          * Get node with a colon
          * @returns {Array} `['propertyDelim']`
-         */function getPropertyDelim(){var startPos=pos;pos++;var token=tokens[startPos];return newNode(NodeType.PropertyDelimType,':',token.ln,token.col);} /**
+         */
+        function getPropertyDelim() {
+          var startPos = pos;
+
+          pos++;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.PropertyDelimType, ':', token.ln, token.col);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkPseudo(i){return checkPseudoe(i) || checkPseudoc(i);} /**
+         */
+        function checkPseudo(i) {
+          return checkPseudoe(i) || checkPseudoc(i);
+        }
+
+        /**
          * @returns {Array}
-         */function getPseudo(){if(checkPseudoe(pos))return getPseudoe();if(checkPseudoc(pos))return getPseudoc();} /**
+         */
+        function getPseudo() {
+          if (checkPseudoe(pos)) return getPseudoe();
+          if (checkPseudoc(pos)) return getPseudoc();
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkPseudoe(i){var l;if(i >= tokensLength || tokens[i++].type !== TokenType.Colon || i >= tokensLength || tokens[i++].type !== TokenType.Colon)return 0;return (l = checkIdentOrInterpolation(i))?l + 2:0;} /**
+         */
+        function checkPseudoe(i) {
+          var l;
+
+          if (i >= tokensLength || tokens[i++].type !== TokenType.Colon || i >= tokensLength || tokens[i++].type !== TokenType.Colon) return 0;
+
+          return (l = checkIdentOrInterpolation(i)) ? l + 2 : 0;
+        }
+
+        /**
          * @returns {Array}
-         */function getPseudoe(){var startPos=pos;pos += 2;var x=getIdentOrInterpolation();var token=tokens[startPos];return newNode(NodeType.PseudoeType,x,token.ln,token.col);} /**
+         */
+        function getPseudoe() {
+          var startPos = pos;
+
+          pos += 2;
+
+          var x = getIdentOrInterpolation();
+
+          var token = tokens[startPos];
+          return newNode(NodeType.PseudoeType, x, token.ln, token.col);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkPseudoc(i){var l;if(i >= tokensLength || tokens[i].type !== TokenType.Colon)return 0;if(l = checkPseudoClass3(i))tokens[i].pseudoClassType = 3;else if(l = checkPseudoClass4(i))tokens[i].pseudoClassType = 4;else if(l = checkPseudoClass5(i))tokens[i].pseudoClassType = 5;else if(l = checkPseudoClass1(i))tokens[i].pseudoClassType = 1;else if(l = checkPseudoClass2(i))tokens[i].pseudoClassType = 2;else if(l = checkPseudoClass6(i))tokens[i].pseudoClassType = 6;else return 0;return l;} /**
+         */
+        function checkPseudoc(i) {
+          var l;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.Colon) return 0;
+
+          if (l = checkPseudoClass3(i)) tokens[i].pseudoClassType = 3;else if (l = checkPseudoClass4(i)) tokens[i].pseudoClassType = 4;else if (l = checkPseudoClass5(i)) tokens[i].pseudoClassType = 5;else if (l = checkPseudoClass1(i)) tokens[i].pseudoClassType = 1;else if (l = checkPseudoClass2(i)) tokens[i].pseudoClassType = 2;else if (l = checkPseudoClass6(i)) tokens[i].pseudoClassType = 6;else return 0;
+
+          return l;
+        }
+
+        /**
          * @returns {Array}
-         */function getPseudoc(){var childType=tokens[pos].pseudoClassType;if(childType === 1)return getPseudoClass1();if(childType === 2)return getPseudoClass2();if(childType === 3)return getPseudoClass3();if(childType === 4)return getPseudoClass4();if(childType === 5)return getPseudoClass5();if(childType === 6)return getPseudoClass6();} /**
+         */
+        function getPseudoc() {
+          var childType = tokens[pos].pseudoClassType;
+          if (childType === 1) return getPseudoClass1();
+          if (childType === 2) return getPseudoClass2();
+          if (childType === 3) return getPseudoClass3();
+          if (childType === 4) return getPseudoClass4();
+          if (childType === 5) return getPseudoClass5();
+          if (childType === 6) return getPseudoClass6();
+        }
+
+        /**
          * (-) `:not(panda)`
-         */function checkPseudoClass1(i){var start=i; // Skip `:`.
-        i++;if(i >= tokensLength)return 0;var l=undefined;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis)return 0;var right=tokens[i].right; // Skip `(`.
-        i++;if(l = checkSelectorsGroup(i))i += l;else return 0;if(i !== right)return 0;return right - start + 1;} /**
+         */
+        function checkPseudoClass1(i) {
+          var start = i;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          var l = void 0;
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          var right = tokens[i].right;
+
+          // Skip `(`.
+          i++;
+
+          if (l = checkSelectorsGroup(i)) i += l;else return 0;
+
+          if (i !== right) return 0;
+
+          return right - start + 1;
+        }
+
+        /**
          * (-) `:not(panda)`
-         */function getPseudoClass1(){var type=NodeType.PseudocType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[]; // Skip `:`.
-        pos++;content = content.concat(getIdentOrInterpolation());{var _type=NodeType.ArgumentsType;var _token=tokens[pos];var _line=_token.ln;var _column=_token.col; // Skip `(`.
-        pos++;var selectors=getSelectorsGroup();var end=getLastPosition(selectors,_line,_column,1);var args=newNode(_type,selectors,_line,_column,end);content.push(args); // Skip `)`.
-        pos++;}return newNode(type,content,line,column);} /**
+         */
+        function getPseudoClass1() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `:`.
+          pos++;
+
+          content = content.concat(getIdentOrInterpolation());
+
+          {
+            var _type = NodeType.ArgumentsType;
+            var _token = tokens[pos];
+            var _line = _token.ln;
+            var _column = _token.col;
+
+            // Skip `(`.
+            pos++;
+
+            var selectors = getSelectorsGroup();
+            var end = getLastPosition(selectors, _line, _column, 1);
+            var args = newNode(_type, selectors, _line, _column, end);
+            content.push(args);
+
+            // Skip `)`.
+            pos++;
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * (1) `:nth-child(odd)`
          * (2) `:nth-child(even)`
          * (3) `:lang(de-DE)`
-         */function checkPseudoClass2(i){var start=i;var l=0; // Skip `:`.
-        i++;if(i >= tokensLength)return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis)return 0;var right=tokens[i].right; // Skip `(`.
-        i++;if(l = checkSC(i))i += l;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(l = checkSC(i))i += l;if(i !== right)return 0;return i - start + 1;}function getPseudoClass2(){var type=NodeType.PseudocType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[]; // Skip `:`.
-        pos++;content = content.concat(getIdentOrInterpolation());var l=tokens[pos].ln;var c=tokens[pos].col;var value=[]; // Skip `(`.
-        pos++;value = value.concat(getSC()).concat(getIdentOrInterpolation()).concat(getSC());var end=getLastPosition(value,l,c,1);var args=newNode(NodeType.ArgumentsType,value,l,c,end);content.push(args); // Skip `)`.
-        pos++;return newNode(type,content,line,column);} /**
+         */
+        function checkPseudoClass2(i) {
+          var start = i;
+          var l = 0;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          var right = tokens[i].right;
+
+          // Skip `(`.
+          i++;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i !== right) return 0;
+
+          return i - start + 1;
+        }
+
+        function getPseudoClass2() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `:`.
+          pos++;
+
+          content = content.concat(getIdentOrInterpolation());
+
+          var l = tokens[pos].ln;
+          var c = tokens[pos].col;
+          var value = [];
+
+          // Skip `(`.
+          pos++;
+
+          value = value.concat(getSC()).concat(getIdentOrInterpolation()).concat(getSC());
+
+          var end = getLastPosition(value, l, c, 1);
+          var args = newNode(NodeType.ArgumentsType, value, l, c, end);
+          content.push(args);
+
+          // Skip `)`.
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * (-) `:nth-child(-3n + 2)`
-         */function checkPseudoClass3(i){var start=i;var l=0; // Skip `:`.
-        i++;if(i >= tokensLength)return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis)return 0;var right=tokens[i].right; // Skip `(`.
-        i++;if(l = checkSC(i))i += l;if(l = checkUnary(i))i += l;if(i >= tokensLength)return 0;if(tokens[i].type === TokenType.DecimalNumber)i++;if(i >= tokensLength)return 0;if(tokens[i].value === 'n')i++;else return 0;if(l = checkSC(i))i += l;if(i >= tokensLength)return 0;if(tokens[i].value === '+' || tokens[i].value === '-')i++;else return 0;if(l = checkSC(i))i += l;if(tokens[i].type === TokenType.DecimalNumber)i++;else return 0;if(l = checkSC(i))i += l;if(i !== right)return 0;return i - start + 1;}function getPseudoClass3(){var type=NodeType.PseudocType;var token=tokens[pos];var line=token.ln;var column=token.col; // Skip `:`.
-        pos++;var content=getIdentOrInterpolation();var l=tokens[pos].ln;var c=tokens[pos].col;var value=[]; // Skip `(`.
-        pos++;if(checkUnary(pos))value.push(getUnary());if(checkNumber(pos))value.push(getNumber());{var _l=tokens[pos].ln;var _c=tokens[pos].col;var _content=tokens[pos].value;var ident=newNode(NodeType.IdentType,_content,_l,_c);value.push(ident);pos++;}value = value.concat(getSC());if(checkUnary(pos))value.push(getUnary());value = value.concat(getSC());if(checkNumber(pos))value.push(getNumber());value = value.concat(getSC());var end=getLastPosition(value,l,c,1);var args=newNode(NodeType.ArgumentsType,value,l,c,end);content.push(args); // Skip `)`.
-        pos++;return newNode(type,content,line,column);} /**
+         */
+        function checkPseudoClass3(i) {
+          var start = i;
+          var l = 0;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          var right = tokens[i].right;
+
+          // Skip `(`.
+          i++;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkUnary(i)) i += l;
+
+          if (l = checkNumberOrInterpolation(i)) i += l;
+
+          if (i >= tokensLength) return 0;
+          if (tokens[i].value === 'n') i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].type === TokenType.PlusSign || tokens[i].type === TokenType.HyphenMinus) i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkNumberOrInterpolation(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i !== right) return 0;
+
+          return i - start + 1;
+        }
+
+        function getPseudoClass3() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+
+          // Skip `:`.
+          pos++;
+
+          var content = getIdentOrInterpolation();
+
+          var l = tokens[pos].ln;
+          var c = tokens[pos].col;
+          var value = [];
+
+          // Skip `(`.
+          pos++;
+
+          if (checkUnary(pos)) value.push(getUnary());
+
+          if (checkNumberOrInterpolation(pos)) value = value.concat(getNumberOrInterpolation());
+
+          {
+            var _l = tokens[pos].ln;
+            var _c = tokens[pos].col;
+            var _content = tokens[pos].value;
+            var ident = newNode(NodeType.IdentType, _content, _l, _c);
+            value.push(ident);
+            pos++;
+          }
+
+          value = value.concat(getSC());
+          if (checkUnary(pos)) value.push(getUnary());
+          value = value.concat(getSC());
+          if (checkNumberOrInterpolation(pos)) value = value.concat(getNumberOrInterpolation());
+          value = value.concat(getSC());
+
+          var end = getLastPosition(value, l, c, 1);
+          var args = newNode(NodeType.ArgumentsType, value, l, c, end);
+          content.push(args);
+
+          // Skip `)`.
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * (-) `:nth-child(-3n)`
-         */function checkPseudoClass4(i){var start=i;var l=0; // Skip `:`.
-        i++;if(i >= tokensLength)return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(i >= tokensLength)return 0;if(tokens[i].type !== TokenType.LeftParenthesis)return 0;var right=tokens[i].right; // Skip `(`.
-        i++;if(l = checkSC(i))i += l;if(l = checkUnary(i))i += l;if(tokens[i].type === TokenType.DecimalNumber)i++;if(tokens[i].value === 'n')i++;else return 0;if(l = checkSC(i))i += l;if(i !== right)return 0;return i - start + 1;}function getPseudoClass4(){var type=NodeType.PseudocType;var token=tokens[pos];var line=token.ln;var column=token.col; // Skip `:`.
-        pos++;var content=getIdentOrInterpolation();var l=tokens[pos].ln;var c=tokens[pos].col;var value=[]; // Skip `(`.
-        pos++;value = value.concat(getSC());if(checkUnary(pos))value.push(getUnary());if(checkNumber(pos))value.push(getNumber());if(checkIdent(pos))value.push(getIdent());value = value.concat(getSC());var end=getLastPosition(value,l,c,1);var args=newNode(NodeType.ArgumentsType,value,l,c,end);content.push(args); // Skip `)`.
-        pos++;return newNode(type,content,line,column);} /**
+         */
+        function checkPseudoClass4(i) {
+          var start = i;
+          var l = 0;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (i >= tokensLength) return 0;
+          if (tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          var right = tokens[i].right;
+
+          // Skip `(`.
+          i++;
+
+          if (l = checkSC(i)) i += l;
+
+          // Check for leading unary `-`
+          if (l = checkUnary(i)) i += l;
+
+          // Check for interpolation `#{i}`
+          if (l = checkInterpolation(i)) i += l;
+
+          if (tokens[i].type === TokenType.DecimalNumber) i++;
+
+          if (tokens[i].value === 'n') i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i !== right) return 0;
+
+          return i - start + 1;
+        }
+
+        function getPseudoClass4() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+
+          // Skip `:`.
+          pos++;
+
+          var content = getIdentOrInterpolation();
+
+          var l = tokens[pos].ln;
+          var c = tokens[pos].col;
+          var value = [];
+
+          // Skip `(`.
+          pos++;
+
+          value = value.concat(getSC());
+
+          if (checkUnary(pos)) value.push(getUnary());
+          if (checkInterpolation(pos)) value.push(getInterpolation());
+          if (checkNumber(pos)) value.push(getNumber());
+          if (checkIdent(pos)) value.push(getIdent());
+          value = value.concat(getSC());
+
+          var end = getLastPosition(value, l, c, 1);
+          var args = newNode(NodeType.ArgumentsType, value, l, c, end);
+          content.push(args);
+
+          // Skip `)`.
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * (-) `:nth-child(+8)`
-         */function checkPseudoClass5(i){var start=i;var l=0; // Skip `:`.
-        i++;if(i >= tokensLength)return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;if(i >= tokensLength)return 0;if(tokens[i].type !== TokenType.LeftParenthesis)return 0;var right=tokens[i].right; // Skip `(`.
-        i++;if(l = checkSC(i))i += l;if(l = checkUnary(i))i += l;if(tokens[i].type === TokenType.DecimalNumber)i++;else return 0;if(l = checkSC(i))i += l;if(i !== right)return 0;return i - start + 1;}function getPseudoClass5(){var type=NodeType.PseudocType;var token=tokens[pos];var line=token.ln;var column=token.col; // Skip `:`.
-        pos++;var content=getIdentOrInterpolation();var l=tokens[pos].ln;var c=tokens[pos].col;var value=[]; // Skip `(`.
-        pos++;if(checkUnary(pos))value.push(getUnary());if(checkNumber(pos))value.push(getNumber());value = value.concat(getSC());var end=getLastPosition(value,l,c,1);var args=newNode(NodeType.ArgumentsType,value,l,c,end);content.push(args); // Skip `)`.
-        pos++;return newNode(type,content,line,column);} /**
+         */
+        function checkPseudoClass5(i) {
+          var start = i;
+          var l = 0;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          if (i >= tokensLength) return 0;
+          if (tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          var right = tokens[i].right;
+
+          // Skip `(`.
+          i++;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkUnary(i)) i += l;
+          if (tokens[i].type === TokenType.DecimalNumber) i++;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (i !== right) return 0;
+
+          return i - start + 1;
+        }
+
+        function getPseudoClass5() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+
+          // Skip `:`.
+          pos++;
+
+          var content = getIdentOrInterpolation();
+
+          var l = tokens[pos].ln;
+          var c = tokens[pos].col;
+          var value = [];
+
+          // Skip `(`.
+          pos++;
+
+          if (checkUnary(pos)) value.push(getUnary());
+          if (checkNumber(pos)) value.push(getNumber());
+          value = value.concat(getSC());
+
+          var end = getLastPosition(value, l, c, 1);
+          var args = newNode(NodeType.ArgumentsType, value, l, c, end);
+          content.push(args);
+
+          // Skip `)`.
+          pos++;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * (-) `:checked`
-         */function checkPseudoClass6(i){var start=i;var l=0; // Skip `:`.
-        i++;if(i >= tokensLength)return 0;if(l = checkIdentOrInterpolation(i))i += l;else return 0;return i - start;}function getPseudoClass6(){var type=NodeType.PseudocType;var token=tokens[pos];var line=token.ln;var column=token.col; // Skip `:`.
-        pos++;var content=getIdentOrInterpolation();return newNode(type,content,line,column);} /**
+         */
+        function checkPseudoClass6(i) {
+          var start = i;
+          var l = 0;
+
+          // Skip `:`.
+          i++;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        function getPseudoClass6() {
+          var type = NodeType.PseudocType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+
+          // Skip `:`.
+          pos++;
+
+          var content = getIdentOrInterpolation();
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkRuleset(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkSelectorsGroup(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkBlock(i))i += l;else return 0;return i - start;}function getRuleset(){var type=NodeType.RulesetType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[];content = content.concat(getSelectorsGroup());content = content.concat(getSC());content.push(getBlock());return newNode(type,content,line,column);} /**
+         */
+        function checkRuleset(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkSelectorsGroup(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkBlock(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        function getRuleset() {
+          var type = NodeType.RulesetType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          content = content.concat(getSelectorsGroup());
+          content = content.concat(getSC());
+          content.push(getBlock());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * Check if token is marked as a space (if it's a space or a tab
          *      or a line break).
          * @param {Number} i
          * @returns {Number} Number of spaces in a row starting with the given token.
-         */function checkS(i){return i < tokensLength && tokens[i].ws?tokens[i].ws_last - i + 1:0;} /**
+         */
+        function checkS(i) {
+          return i < tokensLength && tokens[i].ws ? tokens[i].ws_last - i + 1 : 0;
+        }
+
+        /**
          * Get node with spaces
          * @returns {Array} `['s', x]` where `x` is a string containing spaces
-         */function getS(){var startPos=pos;var x=joinValues(pos,tokens[pos].ws_last);pos = tokens[pos].ws_last + 1;var token=tokens[startPos];return newNode(NodeType.SType,x,token.ln,token.col);} /**
+         */
+        function getS() {
+          var startPos = pos;
+          var x = joinValues(pos, tokens[pos].ws_last);
+
+          pos = tokens[pos].ws_last + 1;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.SType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is a space or a comment.
          * @param {Number} i Token's index number
          * @returns {Number} Number of similar (space or comment) tokens
          *      in a row starting with the given token.
-         */function checkSC(i){if(i >= tokensLength)return 0;var l=undefined;var lsc=0;while(i < tokensLength) {if(!(l = checkS(i)) && !(l = checkCommentML(i)) && !(l = checkCommentSL(i)))break;i += l;lsc += l;}return lsc || 0;} /**
+         */
+        function checkSC(i) {
+          if (i >= tokensLength) return 0;
+
+          var l = void 0;
+          var lsc = 0;
+
+          while (i < tokensLength) {
+            if (!(l = checkS(i)) && !(l = checkCommentML(i)) && !(l = checkCommentSL(i))) break;
+            i += l;
+            lsc += l;
+          }
+
+          return lsc || 0;
+        }
+
+        /**
          * Get node with spaces and comments
          * @returns {Array} Array containing nodes with spaces (if there are any)
          *      and nodes with comments (if there are any):
          *      `[['s', x]*, ['comment', y]*]` where `x` is a string of spaces
          *      and `y` is a comment's text (without `/*` and `* /`).
-         */function getSC(){var sc=[];if(pos >= tokensLength)return sc;while(pos < tokensLength) {if(checkS(pos))sc.push(getS());else if(checkCommentML(pos))sc.push(getCommentML());else if(checkCommentSL(pos))sc.push(getCommentSL());else break;}return sc;} /**
-         * Check if token is part of a hexadecimal number (e.g. `#fff`) inside
-         *      a simple selector
-         * @param {Number} i Token's index number
-         * @returns {Number}
-         */function checkShash(i){var l;if(i >= tokensLength || tokens[i].type !== TokenType.NumberSign)return 0;return (l = checkIdentOrInterpolation(i + 1))?l + 1:0;} /**
-         * Get node with a hexadecimal number (e.g. `#fff`) inside a simple
-         *      selector
-         * @returns {Array} `['shash', x]` where `x` is a hexadecimal number
-         *      converted to string (without `#`, e.g. `fff`)
-         */function getShash(){var startPos=pos;var token=tokens[startPos];pos++;var x=getIdentOrInterpolation();return newNode(NodeType.ShashType,x,token.ln,token.col);} /**
+         */
+        function getSC() {
+          var sc = [];
+
+          if (pos >= tokensLength) return sc;
+
+          while (pos < tokensLength) {
+            if (checkS(pos)) sc.push(getS());else if (checkCommentML(pos)) sc.push(getCommentML());else if (checkCommentSL(pos)) sc.push(getCommentSL());else break;
+          }
+
+          return sc;
+        }
+
+        /**
+         * Check if token is part of a hexadecimal number (e.g. `#fff`) inside a simple
+         * selector
+         * @param {number} i Token's index number
+         * @return {number}
+         */
+        function checkShash(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].type === TokenType.NumberSign) i++;else return 0;
+
+          if (l = checkIdentOrInterpolation(i) || checkPartialIdent(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            if (l = checkIdentOrInterpolation(i) || checkPartialIdent(i)) i += l;else break;
+          }
+
+          tokens[start].shashEnd = i;
+
+          return i - start;
+        }
+
+        /**
+         * Get node with a hexadecimal number (e.g. `#fff`) inside a simple selector
+         * @returns {Node}
+         */
+        function getShash() {
+          var startPos = pos;
+          var type = NodeType.ShashType;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+          var end = token.shashEnd;
+          var content = [];
+
+          // Skip `#`
+          pos++;
+
+          while (pos < end) {
+            if (checkIdentOrInterpolation(pos)) {
+              content = content.concat(getIdentOrInterpolation());
+            } else if (checkPartialIdent(pos)) {
+              content.push(getIdent());
+            } else break;
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * Check if token is part of a string (text wrapped in quotes)
          * @param {Number} i Token's index number
          * @returns {Number} `1` if token is part of a string, `0` if not
-         */function checkString(i){return i < tokensLength && (tokens[i].type === TokenType.StringSQ || tokens[i].type === TokenType.StringDQ)?1:0;} /**
+         */
+        function checkString(i) {
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].type === TokenType.StringSQ || tokens[i].type === TokenType.StringDQ) {
+            return 1;
+          }
+
+          return 0;
+        }
+
+        /**
          * Get string's node
          * @returns {Array} `['string', x]` where `x` is a string (including
          *      quotes).
-         */function getString(){var startPos=pos;var x=tokens[pos++].value;var token=tokens[startPos];return newNode(NodeType.StringType,x,token.ln,token.col);} /**
+         */
+        function getString() {
+          var startPos = pos;
+          var x = tokens[pos++].value;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.StringType, x, token.ln, token.col);
+        }
+
+        /**
          * Validate stylesheet: it should consist of any number (0 or more) of
          * rulesets (sets of rules with selectors), @-rules, whitespaces or
          * comments.
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkStylesheet(i){var start=i;var l=undefined;while(i < tokensLength) {if(l = checkSC(i) || checkDeclaration(i) || checkDeclDelim(i) || checkInclude(i) || checkExtend(i) || checkMixin(i) || checkLoop(i) || checkConditionalStatement(i) || checkAtrule(i) || checkRuleset(i))i += l;else throwError(i);}return i - start;} /**
+         */
+        function checkStylesheet(i) {
+          var start = i;
+          var l = void 0;
+
+          while (i < tokensLength) {
+            if (l = checkSC(i)) tokens[i].ss_child = 1;else if (l = checkRuleset(i)) tokens[i].ss_child = 2;else if (l = checkInclude(i)) tokens[i].ss_child = 3;else if (l = checkExtend(i)) tokens[i].ss_child = 4;else if (l = checkMixin(i)) tokens[i].ss_child = 5;else if (l = checkLoop(i)) tokens[i].ss_child = 6;else if (l = checkConditionalStatement(i)) tokens[i].ss_child = 7;else if (l = checkAtrule(i)) tokens[i].ss_child = 8;else if (l = checkDeclaration(i)) tokens[i].ss_child = 9;else if (l = checkDeclDelim(i)) tokens[i].ss_child = 10;else throwError(i);
+
+            i += l;
+          }
+
+          return i - start;
+        }
+
+        /**
          * @returns {Array} `['stylesheet', x]` where `x` is all stylesheet's
          *      nodes.
-         */function getStylesheet(){var startPos=pos;var x=[];while(pos < tokensLength) {if(checkSC(pos))x = x.concat(getSC());else if(checkRuleset(pos))x.push(getRuleset());else if(checkInclude(pos))x.push(getInclude());else if(checkExtend(pos))x.push(getExtend());else if(checkMixin(pos))x.push(getMixin());else if(checkLoop(pos))x.push(getLoop());else if(checkConditionalStatement(pos))x.push(getConditionalStatement());else if(checkAtrule(pos))x.push(getAtrule());else if(checkDeclaration(pos))x.push(getDeclaration());else if(checkDeclDelim(pos))x.push(getDeclDelim());else throwError();}var token=tokens[startPos];return newNode(NodeType.StylesheetType,x,token.ln,token.col);} /**
+         */
+        function getStylesheet() {
+          var startPos = pos;
+          var x = [];
+
+          while (pos < tokensLength) {
+            var childType = tokens[pos].ss_child;
+
+            if (childType === 1) x = x.concat(getSC());else if (childType === 2) x.push(getRuleset());else if (childType === 3) x.push(getInclude());else if (childType === 4) x.push(getExtend());else if (childType === 5) x.push(getMixin());else if (childType === 6) x.push(getLoop());else if (childType === 7) x.push(getConditionalStatement());else if (childType === 8) x.push(getAtrule());else if (childType === 9) x.push(getDeclaration());else if (childType === 10) x.push(getDeclDelim());
+          }
+
+          var token = tokens[startPos];
+          return newNode(NodeType.StylesheetType, x, token.ln, token.col);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkTset(i){return checkVhash(i) || checkOperator(i) || checkAny(i) || checkSC(i) || checkInterpolation(i);} /**
+         */
+        function checkTset(i) {
+          var l;
+          if (l = checkVhash(i)) tokens[i].tset_type = 1;else if (l = checkOperator(i)) tokens[i].tset_type = 2;else if (l = checkAny(i)) tokens[i].tset_type = 3;else if (l = checkSC(i)) tokens[i].tset_type = 4;else if (l = checkInterpolation(i)) tokens[i].tset_type = 5;
+
+          return l;
+        }
+
+        /**
          * @returns {Array}
-         */function getTset(){if(checkVhash(pos))return getVhash();else if(checkOperator(pos))return getOperator();else if(checkAny(pos))return getAny();else if(checkSC(pos))return getSC();else if(checkInterpolation(pos))return getInterpolation();} /**
+         */
+        function getTset() {
+          var tsetType = tokens[pos].tset_type;
+
+          if (tsetType === 1) return getVhash();else if (tsetType === 2) return getOperator();else if (tsetType === 3) return getAny();else if (tsetType === 4) return getSC();else if (tsetType === 5) return getInterpolation();
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkTsets(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;while(l = checkTset(i)) {i += l;}return i - start;} /**
+         */
+        function checkTsets(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          while (l = checkTset(i)) {
+            i += l;
+          }
+
+          tokens[start].tsets_end = i;
+          return i - start;
+        }
+
+        /**
          * @returns {Array}
-         */function getTsets(){var x=[];var t=undefined;while(t = getTset()) {if(typeof t.content === 'string')x.push(t);else x = x.concat(t);}return x;} /**
+         */
+        function getTsets() {
+          var x = [];
+          var t = void 0;
+
+          if (pos >= tokensLength) return x;
+
+          var end = tokens[pos].tsets_end;
+          while (pos < end) {
+            t = getTset();
+            if (typeof t.content === 'string') x.push(t);else x = x.concat(t);
+          }
+
+          return x;
+        }
+
+        /**
          * Check if token is an unary (arithmetical) sign (`+` or `-`)
          * @param {Number} i Token's index number
          * @returns {Number} `1` if token is an unary sign, `0` if not
-         */function checkUnary(i){return i < tokensLength && (tokens[i].type === TokenType.HyphenMinus || tokens[i].type === TokenType.PlusSign)?1:0;} /**
+         */
+        function checkUnary(i) {
+          if (i >= tokensLength) {
+            return 0;
+          }
+
+          if (tokens[i].type === TokenType.HyphenMinus || tokens[i].type === TokenType.PlusSign) {
+            return 1;
+          }
+
+          return 0;
+        }
+
+        /**
          * Get node with an unary (arithmetical) sign (`+` or `-`)
          * @returns {Array} `['unary', x]` where `x` is an unary sign
          *      converted to string.
-         */function getUnary(){var startPos=pos;var x=tokens[pos++].value;var token=tokens[startPos];return newNode(NodeType.OperatorType,x,token.ln,token.col);} /**
-         * Check if token is part of URI (e.g. `url('/css/styles.css')`)
-         * @param {Number} i Token's index number
-         * @returns {Number} Length of URI
-         */function checkUri(i){var start=i;if(i >= tokensLength || tokens[i++].value !== 'url' || i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis)return 0;return tokens[i].right - start + 1;} /**
-         * Get node with URI
-         * @returns {Array} `['uri', x]` where `x` is URI's nodes (without `url`
-         *      and braces, e.g. `['string', ''/css/styles.css'']`).
-         */function getUri(){var startPos=pos;var uriExcluding={};var uri=undefined;var token=undefined;var l=undefined;var raw=undefined;pos += 2;uriExcluding[TokenType.Space] = 1;uriExcluding[TokenType.Tab] = 1;uriExcluding[TokenType.Newline] = 1;uriExcluding[TokenType.LeftParenthesis] = 1;uriExcluding[TokenType.RightParenthesis] = 1;if(checkUriContent(pos)){uri = [].concat(getSC()).concat(getUriContent()).concat(getSC());}else {uri = [].concat(getSC());l = checkExcluding(uriExcluding,pos);token = tokens[pos];raw = newNode(NodeType.RawType,joinValues(pos,pos + l),token.ln,token.col);uri.push(raw);pos += l + 1;uri = uri.concat(getSC());}token = tokens[startPos];var line=token.ln;var column=token.col;var end=getLastPosition(uri,line,column,1);pos++;return newNode(NodeType.UriType,uri,token.ln,token.col,end);} /**
+         */
+        function getUnary() {
+          var startPos = pos;
+          var x = tokens[pos++].value;
+
+          var token = tokens[startPos];
+          return newNode(NodeType.OperatorType, x, token.ln, token.col);
+        }
+
+        /**
+         * Check if token is a unicode range (single or multiple <urange> nodes)
+         * @param {number} i Token's index
+         * @return {number} Unicode range node's length
+         */
+        function checkUnicodeRange(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkUrange(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var spaceBefore = checkSC(i);
+            var comma = checkDelim(i + spaceBefore);
+            if (!comma) break;
+
+            var spaceAfter = checkSC(i + spaceBefore + comma);
+            if (l = checkUrange(i + spaceBefore + comma + spaceAfter)) {
+              i += spaceBefore + comma + spaceAfter + l;
+            } else break;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * Get a unicode range node
+         * @return {Node}
+         */
+        function getUnicodeRange() {
+          var type = NodeType.UnicodeRangeType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          while (pos < tokensLength) {
+            if (checkSC(pos)) content = content.concat(getSC());else if (checkDelim(pos)) content.push(getDelim());else if (checkUrange(pos)) content.push(getUrange());else break;
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check if token is a u-range (part of a unicode-range)
+         * (1) `U+416`
+         * (2) `U+400-4ff`
+         * (3) `U+4??`
+         * @param {number} i Token's index
+         * @return {number} Urange node's length
+         */
+        function checkUrange(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          // Check for unicode prefix (u+ or U+)
+          if (tokens[i].value === 'U' || tokens[i].value === 'u') i += 1;else return 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].value === '+') i += 1;else return 0;
+
+          while (i < tokensLength) {
+            if (l = checkIdent(i)) i += l;else if (l = checkNumber(i)) i += l;else if (l = checkUnary(i)) i += l;else if (l = _checkUnicodeWildcard(i)) i += l;else break;
+          }
+
+          tokens[start].urangeEnd = i - 1;
+
+          return i - start;
+        }
+
+        /**
+         * Get a u-range node (part of a unicode-range)
+         * @return {Node}
+         */
+        function getUrange() {
+          var startPos = pos;
+          var type = NodeType.UrangeType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          content = joinValues(startPos, tokens[startPos].urangeEnd);
+          pos = tokens[startPos].urangeEnd + 1;
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check for unicode wildcard characters `?`
+         * @param {number} i Token's index
+         * @return {number} Wildcard length
+         */
+        function _checkUnicodeWildcard(i) {
+          var start = i;
+
+          if (i >= tokensLength) return 0;
+
+          while (i < tokensLength) {
+            if (tokens[i].type === TokenType.QuestionMark) i += 1;else break;
+          }
+
+          tokens[start].uri_raw_end = i;
+
+          return i - start;
+        }
+
+        /**
+         * Check if token is part of URI, e.g. `url('/css/styles.css')`
+         * @param {number} i Token's index number
+         * @returns {number} Length of URI
+         */
+        function checkUri(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength || tokens[i].value !== 'url') return 0;
+
+          // Skip `url`
+          i++;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.LeftParenthesis) return 0;
+
+          // Store the opening parenthesis token as we will reference it's `right`
+          // property to determine when the parentheses close
+          var leftParenthesis = tokens[i];
+
+          // Skip `(`
+          i++;
+
+          // Determine the type of URI
+          while (i < leftParenthesis.right) {
+            if (l = checkUri1(i)) {
+              i += l;
+              tokens[start].uriType = 1; // Raw based URI (without quotes)
+            } else if (l = checkUri2(i)) {
+              i += l;
+              tokens[start].uriType = 2; // Non-raw based URI (with quotes)
+            } else return 0;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * Get specific type of URI node
+         * @return {Node} Specific type of URI node
+         */
+        function getUri() {
+          var uriType = tokens[pos].uriType;
+
+          if (uriType === 1) return getUri1();
+          if (uriType === 2) return getUri2();
+        }
+
+        /**
+         * Check if token type is valid URI character
+         * @param {number} i Token's index number
+         * @return {number} Length of raw node
+         */
+        function checkUriRawCharacters(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkIdent(i)) i += l;else if (l = checkNumber(i)) i += l;else {
+            switch (tokens[i].type) {
+              case TokenType.ExclamationMark:
+              case TokenType.NumberSign:
+              case TokenType.DollarSign:
+              case TokenType.PercentSign:
+              case TokenType.Ampersand:
+              case TokenType.Asterisk:
+              case TokenType.PlusSign:
+              case TokenType.Comma:
+              case TokenType.HyphenMinus:
+              case TokenType.FullStop:
+              case TokenType.Solidus:
+              case TokenType.Colon:
+              case TokenType.Semicolon:
+              case TokenType.LessThanSign:
+              case TokenType.EqualsSign:
+              case TokenType.GreaterThanSign:
+              case TokenType.QuotationMark:
+              case TokenType.CommercialAt:
+              case TokenType.LeftSquareBracket:
+              case TokenType.RightSquareBracket:
+              case TokenType.CircumflexAccent:
+              case TokenType.LowLine:
+              case TokenType.LeftCurlyBracket:
+              case TokenType.VerticalLine:
+              case TokenType.RightCurlyBracket:
+              case TokenType.Tilde:
+                i += 1;
+                break;
+
+              default:
+                return 0;
+            }
+          }
+
+          return i - start;
+        }
+
+        /**
+         * Check if content of URI can be contained within a raw node
+         * @param {number} i Token's index number
+         * @return {number} Length of raw node
+         */
+        function checkUriRaw(i) {
+          var start = i;
+          var l = void 0;
+
+          while (i < tokensLength) {
+            if (checkInterpolation(i) || checkVariable(i)) break;else if (l = checkUriRawCharacters(i)) i += l;else break;
+          }
+
+          tokens[start].uri_raw_end = i;
+
+          return i - start;
+        }
+
+        /**
+         * Get a raw node
+         * @return {Node}
+         */
+        function getUriRaw() {
+          var startPos = pos;
+          var type = NodeType.RawType;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+          var l = void 0;
+
+          while (pos < tokens[startPos].uri_raw_end) {
+            if (checkInterpolation(pos) || checkVariable(pos)) break;else if (l = checkUriRawCharacters(pos)) pos += l;else break;
+          }
+
+          content = joinValues(startPos, pos - 1);
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
+         * Check for a raw (without quotes) URI
+         * (1) http://foo.com/bar.png
+         * (2) http://foo.com/#{$bar}.png
+         * (3) #{$foo}/bar.png
+         * (4) #{$foo}
+         * @param {number} i Token's index number
+         * @return {number} Length of URI node
+         */
+        function checkUri1(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkSC(i)) i += l;
+
+          while (i < tokensLength) {
+            if (l = checkInterpolation(i) || checkUriRaw(i)) i += l;else break;
+          }
+
+          if (l = checkSC(i)) i += l;
+
+          // Check that we are at the end of the uri
+          if (i < tokens[start - 1].right) return 0;
+
+          tokens[start].uri_end = i;
+
+          return i - start;
+        }
+
+        /**
+         * Get a raw (without quotes) URI
+          node
+         * @return {Node}
+         */
+        function getUri1() {
+          var startPos = pos;
+          var type = NodeType.UriType;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+          var end = void 0;
+
+          // Skip `url` and `(`
+          pos += 2;
+
+          if (checkSC(pos)) content = content.concat(getSC());
+
+          while (pos < tokens[startPos + 2].uri_end) {
+            if (checkInterpolation(pos)) content.push(getInterpolation());else if (checkUriRaw(pos)) content.push(getUriRaw());else break;
+          }
+
+          if (checkSC(pos)) content = content.concat(getSC());
+
+          // Check that we are at the end of the uri
+          if (pos < tokens[startPos + 1].right) return 0;
+
+          end = getLastPosition(content, line, column, 1);
+
+          // Skip `)`
+          pos++;
+
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
+         * Check for a non-raw (with quotes) URI
+         * (1) 'http://foo.com/bar.png'
+         * (2) 'http://foo.com/'#{$bar}.png
+         * (3) #{$foo}'/bar.png'
+         * @param {number} i Token's index number
+         * @return {number} Length of URI node
+         */
+        function checkUri2(i) {
+          var start = i;
+          var l = void 0;
+
+          while (i < tokensLength) {
+            if (l = checkSC(i)) i += l;else if (l = checkString(i)) i += l;else if (l = checkFunction(i)) i += l;else if (l = checkUnary(i)) i += l;else if (l = checkIdentOrInterpolation(i)) i += l;else if (l = checkVariable(i)) i += l;else break;
+          }
+
+          tokens[start].uri_end = i;
+
+          return i - start;
+        }
+
+        /**
+         * Get a non-raw (with quotes) URI node
+         * @return {Node}
+         */
+        function getUri2() {
+          var startPos = pos;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+          var end = void 0;
+
+          // Skip `url` and `(`
+          pos += 2;
+
+          while (pos < tokens[startPos + 2].uri_end) {
+            if (checkSC(pos)) content = content.concat(getSC());else if (checkUnary(pos)) content.push(getUnary());else if (_checkValue(pos)) content.push(_getValue());else break;
+          }
+
+          end = getLastPosition(content, line, column, 1);
+
+          // Skip `)`
+          pos++;
+
+          return newNode(NodeType.UriType, content, line, column, end);
+        }
+
+        /**
+         * Check if token is part of a value
+         * @param {Number} i Token's index number
+         * @returns {Number} Length of the value
+         */
+        function checkValue(i) {
+          var start = i;
+          var l = void 0;
+          var s = void 0;
+          var _i = void 0;
+
+          while (i < tokensLength) {
+            if (checkDeclDelim(i)) break;
+
+            s = checkSC(i);
+            _i = i + s;
+
+            if (l = _checkValue(_i)) i += l + s;
+            if (!l || checkBlock(i - l)) break;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * @returns {Array}
+         */
+        function getValue() {
+          var startPos = pos;
+          var x = [];
+          var _pos = void 0;
+          var s = void 0;
+
+          while (pos < tokensLength) {
+            s = checkSC(pos);
+            _pos = pos + s;
+
+            if (checkDeclDelim(_pos)) break;
+
+            if (!_checkValue(_pos)) break;
+
+            if (s) x = x.concat(getSC());
+            x.push(_getValue());
+
+            if (checkBlock(_pos)) break;
+          }
+
+          var token = tokens[startPos];
+          return newNode(NodeType.ValueType, x, token.ln, token.col);
+        }
+
+        /**
+         * @param {number} i Token's index number
+         * @returns {number} Length of the value
+         */
+        function checkSingleValue(i) {
+          var start = i;
+          var l = void 0;
+          var s = void 0;
+          var _i = void 0;
+
+          while (i < tokensLength) {
+            if (checkDeclDelim(i) || checkDelim(i)) break;
+
+            s = checkSC(i);
+            _i = i + s;
+
+            if (l = _checkValue(_i)) i += l + s;
+            if (!l || checkBlock(i - l)) break;
+          }
+
+          return i - start;
+        }
+
+        /**
+         * @returns {Array}
+         */
+        function getSingleValue() {
+          var startPos = pos;
+          var x = [];
+          var _pos = void 0;
+          var s = void 0;
+
+          while (pos < tokensLength) {
+            s = checkSC(pos);
+            _pos = pos + s;
+
+            if (checkDeclDelim(_pos) || checkDelim(_pos)) break;
+
+            if (!_checkValue(_pos)) break;
+
+            if (s) x = x.concat(getSC());
+            x.push(_getValue());
+
+            if (checkBlock(_pos)) break;
+          }
+
+          var token = tokens[startPos];
+          return newNode(NodeType.ValueType, x, token.ln, token.col);
+        }
+
+        /**
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkUriContent(i){return checkUri1(i) || checkFunction(i);} /**
+         */
+        function _checkValue(i) {
+          return checkInterpolation(i) || checkVariable(i) || checkVhash(i) || checkBlock(i) || checkAtkeyword(i) || checkOperator(i) || checkImportant(i) || checkGlobal(i) || checkDefault(i) || checkProgid(i) || checkAny(i) || checkParentSelector(i);
+        }
+
+        /**
          * @returns {Array}
-         */function getUriContent(){if(checkUri1(pos))return getString();else if(checkFunction(pos))return getFunction();} /**
-         * @param {Number} i Token's index number
-         * @returns {Number}
-         */function checkUri1(i){var start=i;var l=undefined;if(i >= tokensLength)return 0;if(l = checkSC(i))i += l;if(tokens[i].type !== TokenType.StringDQ && tokens[i].type !== TokenType.StringSQ)return 0;i++;if(l = checkSC(i))i += l;return i - start;} /**
-         * Check if token is part of a value
-         * @param {Number} i Token's index number
-         * @returns {Number} Length of the value
-         */function checkValue(i){var start=i;var l=undefined;var s=undefined;var _i=undefined;while(i < tokensLength) {if(checkDeclDelim(i))break;s = checkSC(i);_i = i + s;if(l = _checkValue(_i))i += l + s;if(!l || checkBlock(i - l))break;}return i - start;} /**
-         * @param {Number} i Token's index number
-         * @returns {Number}
-         */function _checkValue(i){return checkInterpolation(i) || checkVariable(i) || checkVhash(i) || checkBlock(i) || checkAtkeyword(i) || checkOperator(i) || checkImportant(i) || checkGlobal(i) || checkDefault(i) || checkProgid(i) || checkAny(i);} /**
-         * @returns {Array}
-         */function getValue(){var startPos=pos;var x=[];var _pos=undefined;var s=undefined;while(pos < tokensLength) {s = checkSC(pos);_pos = pos + s;if(checkDeclDelim(_pos))break;if(!_checkValue(_pos))break;if(s)x = x.concat(getSC());x.push(_getValue());if(checkBlock(_pos))break;}var token=tokens[startPos];return newNode(NodeType.ValueType,x,token.ln,token.col);} /**
-         * @returns {Array}
-         */function _getValue(){if(checkInterpolation(pos))return getInterpolation();else if(checkVariable(pos))return getVariable();else if(checkVhash(pos))return getVhash();else if(checkBlock(pos))return getBlock();else if(checkAtkeyword(pos))return getAtkeyword();else if(checkOperator(pos))return getOperator();else if(checkImportant(pos))return getImportant();else if(checkGlobal(pos))return getGlobal();else if(checkDefault(pos))return getDefault();else if(checkProgid(pos))return getProgid();else if(checkAny(pos))return getAny();} /**
+         */
+        function _getValue() {
+          if (checkInterpolation(pos)) return getInterpolation();else if (checkVariable(pos)) return getVariable();else if (checkVhash(pos)) return getVhash();else if (checkBlock(pos)) return getBlock();else if (checkAtkeyword(pos)) return getAtkeyword();else if (checkOperator(pos)) return getOperator();else if (checkImportant(pos)) return getImportant();else if (checkGlobal(pos)) return getGlobal();else if (checkDefault(pos)) return getDefault();else if (checkProgid(pos)) return getProgid();else if (checkAny(pos)) return getAny();else if (checkParentSelector(pos)) return getParentSelector();
+        }
+
+        /**
          * Check if token is part of a variable
          * @param {Number} i Token's index number
          * @returns {Number} Length of the variable
-         */function checkVariable(i){var l;if(i >= tokensLength || tokens[i].type !== TokenType.DollarSign)return 0;return (l = checkIdent(i + 1))?l + 1:0;} /**
+         */
+        function checkVariable(i) {
+          var l;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.DollarSign) return 0;
+
+          return (l = checkIdent(i + 1)) ? l + 1 : 0;
+        }
+
+        /**
          * Get node with a variable
          * @returns {Array} `['variable', ['ident', x]]` where `x` is
          *      a variable name.
-         */function getVariable(){var startPos=pos;var x=[];pos++;x.push(getIdent());var token=tokens[startPos];return newNode(NodeType.VariableType,x,token.ln,token.col);} /**
+         */
+        function getVariable() {
+          var startPos = pos;
+          var x = [];
+
+          pos++;
+
+          x.push(getIdent());
+
+          var token = tokens[startPos];
+          return newNode(NodeType.VariableType, x, token.ln, token.col);
+        }
+
+        /**
          * Check if token is part of a variables list (e.g. `$values...`).
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkVariablesList(i){var d=0; // Number of dots
-        var l=undefined;if(i >= tokensLength)return 0;if(l = checkVariable(i))i += l;else return 0;while(i < tokensLength && tokens[i].type === TokenType.FullStop) {d++;i++;}return d === 3?l + d:0;} /**
+         */
+        function checkVariablesList(i) {
+          var d = 0; // Number of dots
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkVariable(i)) i += l;else return 0;
+
+          while (i < tokensLength && tokens[i].type === TokenType.FullStop) {
+            d++;
+            i++;
+          }
+
+          return d === 3 ? l + d : 0;
+        }
+
+        /**
          * Get node with a variables list
          * @returns {Array} `['variableslist', ['variable', ['ident', x]]]` where
          *      `x` is a variable name.
-         */function getVariablesList(){var startPos=pos;var x=getVariable();var token=tokens[startPos];var line=token.ln;var column=token.col;var end=getLastPosition([x],line,column,3);pos += 3;return newNode(NodeType.VariablesListType,[x],token.ln,token.col,end);} /**
+         */
+        function getVariablesList() {
+          var startPos = pos;
+          var x = getVariable();
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+
+          var end = getLastPosition([x], line, column, 3);
+          pos += 3;
+
+          return newNode(NodeType.VariablesListType, [x], token.ln, token.col, end);
+        }
+
+        /**
          * Check if token is part of a hexadecimal number (e.g. `#fff`) inside
          *      some value
          * @param {Number} i Token's index number
          * @returns {Number}
-         */function checkVhash(i){var l;if(i >= tokensLength || tokens[i].type !== TokenType.NumberSign)return 0;return (l = checkNmName2(i + 1))?l + 1:0;} /**
+         */
+        function checkVhash(i) {
+          var l;
+
+          if (i >= tokensLength || tokens[i].type !== TokenType.NumberSign) return 0;
+
+          return (l = checkNmName2(i + 1)) ? l + 1 : 0;
+        }
+
+        /**
          * Get node with a hexadecimal number (e.g. `#fff`) inside some value
          * @returns {Array} `['vhash', x]` where `x` is a hexadecimal number
          *      converted to string (without `#`, e.g. `'fff'`).
-         */function getVhash(){var startPos=pos;var x=undefined;var token=tokens[startPos];var line=token.ln;var column=token.col;pos++;x = getNmName2();var end=getLastPosition(x,line,column + 1);return newNode(NodeType.VhashType,x,token.ln,token.col,end);}module.exports = function(_tokens,context){tokens = _tokens;tokensLength = tokens.length;pos = 0;return contexts[context]();};function checkSelectorsGroup(i){if(i >= tokensLength)return 0;var start=i;var l=undefined;if(l = checkSelector(i))i += l;else return 0;while(i < tokensLength) {var sb=checkSC(i);var c=checkDelim(i + sb);if(!c)break;var sa=checkSC(i + sb + c);if(l = checkSelector(i + sb + c + sa))i += sb + c + sa + l;else break;}tokens[start].selectorsGroupEnd = i;return i - start;}function getSelectorsGroup(){var selectorsGroup=[];var selectorsGroupEnd=tokens[pos].selectorsGroupEnd;selectorsGroup.push(getSelector());while(pos < selectorsGroupEnd) {selectorsGroup = selectorsGroup.concat(getSC());selectorsGroup.push(getDelim());selectorsGroup = selectorsGroup.concat(getSC());selectorsGroup.push(getSelector());}return selectorsGroup;}function checkSelector(i){var l;if(l = checkSelector1(i))tokens[i].selectorType = 1;else if(l = checkSelector2(i))tokens[i].selectorType = 2;return l;}function getSelector(){var selectorType=tokens[pos].selectorType;if(selectorType === 1)return getSelector1();else return getSelector2();} /**
+         */
+        function getVhash() {
+          var startPos = pos;
+          var x = void 0;
+          var token = tokens[startPos];
+          var line = token.ln;
+          var column = token.col;
+
+          pos++;
+
+          x = getNmName2();
+          var end = getLastPosition(x, line, column + 1);
+          return newNode(NodeType.VhashType, x, token.ln, token.col, end);
+        }
+
+        function checkSelectorsGroup(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var l = void 0;
+
+          if (l = checkSelector(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var sb = checkSC(i);
+            var c = checkDelim(i + sb);
+            if (!c) break;
+            var sa = checkSC(i + sb + c);
+            if (l = checkSelector(i + sb + c + sa)) i += sb + c + sa + l;else break;
+          }
+
+          tokens[start].selectorsGroupEnd = i;
+          return i - start;
+        }
+
+        function getSelectorsGroup() {
+          var selectorsGroup = [];
+          var selectorsGroupEnd = tokens[pos].selectorsGroupEnd;
+
+          selectorsGroup.push(getSelector());
+
+          while (pos < selectorsGroupEnd) {
+            selectorsGroup = selectorsGroup.concat(getSC());
+            selectorsGroup.push(getDelim());
+            selectorsGroup = selectorsGroup.concat(getSC());
+            selectorsGroup.push(getSelector());
+          }
+
+          return selectorsGroup;
+        }
+
+        function checkSelector(i) {
+          var l;
+
+          if (l = checkSelector1(i)) tokens[i].selectorType = 1;else if (l = checkSelector2(i)) tokens[i].selectorType = 2;
+
+          return l;
+        }
+
+        function getSelector() {
+          var selectorType = tokens[pos].selectorType;
+          if (selectorType === 1) return getSelector1();else return getSelector2();
+        }
+
+        /**
          * Checks for selector which starts with a compound selector.
-         */function checkSelector1(i){if(i >= tokensLength)return 0;var start=i;var l=undefined;if(l = checkCompoundSelector(i))i += l;else return 0;while(i < tokensLength) {var s=checkSC(i);var c=checkCombinator(i + s);if(!s && !c)break;if(c){i += s + c;s = checkSC(i);}if(l = checkCompoundSelector(i + s))i += s + l;else break;}tokens[start].selectorEnd = i;return i - start;}function getSelector1(){var type=NodeType.SelectorType;var token=tokens[pos];var line=token.ln;var column=token.col;var selectorEnd=token.selectorEnd;var content=getCompoundSelector();while(pos < selectorEnd) {if(checkSC(pos))content = content.concat(getSC());else if(checkCombinator(pos))content.push(getCombinator());else if(checkCompoundSelector(pos))content = content.concat(getCompoundSelector());}return newNode(type,content,line,column);} /**
+         */
+        function checkSelector1(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var l = void 0;
+
+          if (l = checkCompoundSelector(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var s = checkSC(i);
+            var c = checkCombinator(i + s);
+            if (!s && !c) break;
+            if (c) {
+              i += s + c;
+              s = checkSC(i);
+            }
+
+            if (l = checkCompoundSelector(i + s)) i += s + l;else break;
+          }
+
+          tokens[start].selectorEnd = i;
+          return i - start;
+        }
+
+        function getSelector1() {
+          var type = NodeType.SelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var selectorEnd = token.selectorEnd;
+          var content = getCompoundSelector();
+
+          while (pos < selectorEnd) {
+            if (checkSC(pos)) content = content.concat(getSC());else if (checkCombinator(pos)) content.push(getCombinator());else if (checkCompoundSelector(pos)) content = content.concat(getCompoundSelector());
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * Checks for a selector that starts with a combinator.
-         */function checkSelector2(i){if(i >= tokensLength)return 0;var start=i;var l=undefined;if(l = checkCombinator(i))i += l;else return 0;while(i < tokensLength) {var sb=checkSC(i);if(l = checkCompoundSelector(i + sb))i += sb + l;else break;var sa=checkSC(i);var c=checkCombinator(i + sa);if(!sa && !c)break;if(c){i += sa + c;}}tokens[start].selectorEnd = i;return i - start;}function getSelector2(){var type=NodeType.SelectorType;var token=tokens[pos];var line=token.ln;var column=token.col;var selectorEnd=token.selectorEnd;var content=[getCombinator()];while(pos < selectorEnd) {if(checkSC(pos))content = content.concat(getSC());else if(checkCombinator(pos))content.push(getCombinator());else if(checkCompoundSelector(pos))content = content.concat(getCompoundSelector());}return newNode(type,content,line,column);}function checkCompoundSelector(i){var l=undefined;if(l = checkCompoundSelector1(i)){tokens[i].compoundSelectorType = 1;}else if(l = checkCompoundSelector2(i)){tokens[i].compoundSelectorType = 2;}return l;}function getCompoundSelector(){var type=tokens[pos].compoundSelectorType;if(type === 1)return getCompoundSelector1();if(type === 2)return getCompoundSelector2();}function checkCompoundSelector1(i){if(i >= tokensLength)return 0;var start=i;var l=undefined;if(l = checkTypeSelector(i) || checkPlaceholder(i) || checkParentSelectorWithExtension(i))i += l;else return 0;while(i < tokensLength) {var _l2=checkShash(i) || checkClass(i) || checkAttributeSelector(i) || checkPseudo(i) || checkPlaceholder(i);if(_l2)i += _l2;else break;}tokens[start].compoundSelectorEnd = i;return i - start;}function getCompoundSelector1(){var sequence=[];var compoundSelectorEnd=tokens[pos].compoundSelectorEnd;if(checkTypeSelector(pos))sequence.push(getTypeSelector());else if(checkPlaceholder(pos))sequence.push(getPlaceholder());else if(checkParentSelectorWithExtension(pos))sequence = sequence.concat(getParentSelectorWithExtension());while(pos < compoundSelectorEnd) {if(checkShash(pos))sequence.push(getShash());else if(checkClass(pos))sequence.push(getClass());else if(checkAttributeSelector(pos))sequence.push(getAttributeSelector());else if(checkPseudo(pos))sequence.push(getPseudo());else if(checkPlaceholder(pos))sequence.push(getPlaceholder());}return sequence;}function checkCompoundSelector2(i){if(i >= tokensLength)return 0;var start=i;while(i < tokensLength) {var l=checkShash(i) || checkClass(i) || checkAttributeSelector(i) || checkPseudo(i) || checkPlaceholder(i);if(l)i += l;else break;}tokens[start].compoundSelectorEnd = i;return i - start;}function getCompoundSelector2(){var sequence=[];var compoundSelectorEnd=tokens[pos].compoundSelectorEnd;while(pos < compoundSelectorEnd) {if(checkShash(pos))sequence.push(getShash());else if(checkClass(pos))sequence.push(getClass());else if(checkAttributeSelector(pos))sequence.push(getAttributeSelector());else if(checkPseudo(pos))sequence.push(getPseudo());else if(checkPlaceholder(pos))sequence.push(getPlaceholder());}return sequence;}function checkTypeSelector(i){if(i >= tokensLength)return 0;var start=i;var l=undefined;if(l = checkNamePrefix(i))i += l;if(tokens[i].type === TokenType.Asterisk)i++;else if(l = checkIdentOrInterpolation(i))i += l;else return 0;return i - start;}function getTypeSelector(){var type=NodeType.TypeSelectorType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[];if(checkNamePrefix(pos))content.push(getNamePrefix());if(checkIdentOrInterpolation(pos))content = content.concat(getIdentOrInterpolation());return newNode(type,content,line,column);}function checkAttributeSelector(i){var l=undefined;if(l = checkAttributeSelector1(i))tokens[i].attributeSelectorType = 1;else if(l = checkAttributeSelector2(i))tokens[i].attributeSelectorType = 2;return l;}function getAttributeSelector(){var type=tokens[pos].attributeSelectorType;if(type === 1)return getAttributeSelector1();else return getAttributeSelector2();} /**
+         */
+        function checkSelector2(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var l = void 0;
+
+          if (l = checkCombinator(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var sb = checkSC(i);
+            if (l = checkCompoundSelector(i + sb)) i += sb + l;else break;
+
+            var sa = checkSC(i);
+            var c = checkCombinator(i + sa);
+            if (!sa && !c) break;
+            if (c) {
+              i += sa + c;
+            }
+          }
+
+          tokens[start].selectorEnd = i;
+          return i - start;
+        }
+
+        function getSelector2() {
+          var type = NodeType.SelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var selectorEnd = token.selectorEnd;
+          var content = [getCombinator()];
+
+          while (pos < selectorEnd) {
+            if (checkSC(pos)) content = content.concat(getSC());else if (checkCombinator(pos)) content.push(getCombinator());else if (checkCompoundSelector(pos)) content = content.concat(getCompoundSelector());
+          }
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkCompoundSelector(i) {
+          var l = void 0;
+
+          if (l = checkCompoundSelector1(i)) {
+            tokens[i].compoundSelectorType = 1;
+          } else if (l = checkCompoundSelector2(i)) {
+            tokens[i].compoundSelectorType = 2;
+          }
+
+          return l;
+        }
+
+        function getCompoundSelector() {
+          var type = tokens[pos].compoundSelectorType;
+          if (type === 1) return getCompoundSelector1();
+          if (type === 2) return getCompoundSelector2();
+        }
+
+        /**
+         * Check for compound selectors that start with either a type selector,
+         * placeholder or parent selector with extension
+         * (1) `foo.bar`
+         * (2) `foo[attr=val]`
+         * (3) `foo:first-of-type`
+         * (4) `foo%bar`
+         * @param {number} i Token's index
+         * @return {number} Compound selector's length
+         */
+        function checkCompoundSelector1(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var l = void 0;
+
+          if (l = checkUniversalSelector(i) || checkTypeSelector(i) || checkPlaceholder(i) || checkParentSelectorWithExtension(i)) i += l;else return 0;
+
+          while (i < tokensLength) {
+            var _l2 = checkShash(i) || checkClass(i) || checkAttributeSelector(i) || checkPseudo(i) || checkPlaceholder(i);
+
+            if (_l2) i += _l2;else break;
+          }
+
+          tokens[start].compoundSelectorEnd = i;
+
+          return i - start;
+        }
+
+        /**
+         * @return {Array} An array of nodes that make up the compound selector
+         */
+        function getCompoundSelector1() {
+          var sequence = [];
+          var compoundSelectorEnd = tokens[pos].compoundSelectorEnd;
+
+          if (checkUniversalSelector(pos)) sequence.push(getUniversalSelector());else if (checkTypeSelector(pos)) sequence.push(getTypeSelector());else if (checkPlaceholder(pos)) sequence.push(getPlaceholder());else if (checkParentSelectorWithExtension(pos)) sequence = sequence.concat(getParentSelectorWithExtension());
+
+          while (pos < compoundSelectorEnd) {
+            if (checkShash(pos)) sequence.push(getShash());else if (checkClass(pos)) sequence.push(getClass());else if (checkAttributeSelector(pos)) sequence.push(getAttributeSelector());else if (checkPseudo(pos)) sequence.push(getPseudo());else if (checkPlaceholder(pos)) sequence.push(getPlaceholder());else break;
+          }
+
+          return sequence;
+        }
+
+        /**
+         * Check for all other compound selectors
+         * (1) `.foo.bar`
+         * (2) `.foo[attr=val]`
+         * (3) `.foo:first-of-type`
+         * (4) `.foo%bar`
+         * (5) `.foo#{$bar}`
+         * @param {number} i Token's index
+         * @return {number} Compound selector's length
+         */
+        function checkCompoundSelector2(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+
+          while (i < tokensLength) {
+            var l = checkShash(i) || checkClass(i) || checkAttributeSelector(i) || checkPseudo(i) || checkPlaceholder(i) || checkInterpolation(i);
+
+            if (l) i += l;else break;
+          }
+
+          tokens[start].compoundSelectorEnd = i;
+
+          return i - start;
+        }
+
+        /**
+         * @return {Array} An array of nodes that make up the compound selector
+         */
+        function getCompoundSelector2() {
+          var sequence = [];
+          var compoundSelectorEnd = tokens[pos].compoundSelectorEnd;
+
+          while (pos < compoundSelectorEnd) {
+            if (checkShash(pos)) sequence.push(getShash());else if (checkClass(pos)) sequence.push(getClass());else if (checkAttributeSelector(pos)) sequence.push(getAttributeSelector());else if (checkPseudo(pos)) sequence.push(getPseudo());else if (checkPlaceholder(pos)) sequence.push(getPlaceholder());else if (checkInterpolation(pos)) sequence.push(getInterpolation());else break;
+          }
+
+          return sequence;
+        }
+
+        function checkUniversalSelector(i) {
+          if (i >= tokensLength) return 0;
+
+          var start = i;
+          var l = void 0;
+
+          if (l = checkNamePrefix(i)) i += l;
+
+          if (tokens[i].type === TokenType.Asterisk) i++;else return 0;
+
+          return i - start;
+        }
+
+        function getUniversalSelector() {
+          var type = NodeType.UniversalSelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+          var end = void 0;
+
+          if (checkNamePrefix(pos)) {
+            content.push(getNamePrefix());
+            end = getLastPosition(content, line, column, 1);
+          }
+
+          pos++;
+
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
+         * Check if token is part of a type selector
+         * @param {number} i Token's index
+         * @return {number} Type selector's length
+         */
+        function checkTypeSelector(i) {
+          var start = i;
+          var l = void 0;
+
+          if (i >= tokensLength) return 0;
+
+          if (l = checkNamePrefix(i)) i += l;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        /**
+         * Get type selector node
+         * @return {Node}
+         */
+        function getTypeSelector() {
+          var type = NodeType.TypeSelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          if (checkNamePrefix(pos)) content.push(getNamePrefix());
+
+          content = content.concat(getIdentOrInterpolation());
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkAttributeSelector(i) {
+          var l = void 0;
+          if (l = checkAttributeSelector1(i)) tokens[i].attributeSelectorType = 1;else if (l = checkAttributeSelector2(i)) tokens[i].attributeSelectorType = 2;
+
+          return l;
+        }
+
+        function getAttributeSelector() {
+          var type = tokens[pos].attributeSelectorType;
+          if (type === 1) return getAttributeSelector1();else return getAttributeSelector2();
+        }
+
+        /**
          * (1) `[panda=nani]`
          * (2) `[panda='nani']`
          * (3) `[panda='nani' i]`
          *
-         */function checkAttributeSelector1(i){var start=i;if(tokens[i].type === TokenType.LeftSquareBracket)i++;else return 0;var l=undefined;if(l = checkSC(i))i += l;if(l = checkAttributeName(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkAttributeMatch(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkAttributeValue(i))i += l;else return 0;if(l = checkSC(i))i += l;if(l = checkAttributeFlags(i)){i += l;if(l = checkSC(i))i += l;}if(tokens[i].type === TokenType.RightSquareBracket)i++;else return 0;return i - start;}function getAttributeSelector1(){var type=NodeType.AttributeSelectorType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[]; // Skip `[`.
-        pos++;content = content.concat(getSC());content.push(getAttributeName());content = content.concat(getSC());content.push(getAttributeMatch());content = content.concat(getSC());content.push(getAttributeValue());content = content.concat(getSC());if(checkAttributeFlags(pos)){content.push(getAttributeFlags());content = content.concat(getSC());} // Skip `]`.
-        pos++;var end=getLastPosition(content,line,column,1);return newNode(type,content,line,column,end);} /**
+         */
+        function checkAttributeSelector1(i) {
+          var start = i;
+
+          if (tokens[i].type === TokenType.LeftSquareBracket) i++;else return 0;
+
+          var l = void 0;
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkAttributeName(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkAttributeMatch(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkAttributeValue(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkAttributeFlags(i)) {
+            i += l;
+            if (l = checkSC(i)) i += l;
+          }
+
+          if (tokens[i].type === TokenType.RightSquareBracket) i++;else return 0;
+
+          return i - start;
+        }
+
+        function getAttributeSelector1() {
+          var type = NodeType.AttributeSelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `[`.
+          pos++;
+
+          content = content.concat(getSC());
+          content.push(getAttributeName());
+          content = content.concat(getSC());
+          content.push(getAttributeMatch());
+          content = content.concat(getSC());
+          content.push(getAttributeValue());
+          content = content.concat(getSC());
+
+          if (checkAttributeFlags(pos)) {
+            content.push(getAttributeFlags());
+            content = content.concat(getSC());
+          }
+
+          // Skip `]`.
+          pos++;
+
+          var end = getLastPosition(content, line, column, 1);
+          return newNode(type, content, line, column, end);
+        }
+
+        /**
          * (1) `[panda]`
-         */function checkAttributeSelector2(i){var start=i;if(tokens[i].type === TokenType.LeftSquareBracket)i++;else return 0;var l=undefined;if(l = checkSC(i))i += l;if(l = checkAttributeName(i))i += l;else return 0;if(l = checkSC(i))i += l;if(tokens[i].type === TokenType.RightSquareBracket)i++;else return 0;return i - start;}function getAttributeSelector2(){var type=NodeType.AttributeSelectorType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[]; // Skip `[`.
-        pos++;content = content.concat(getSC());content.push(getAttributeName());content = content.concat(getSC()); // Skip `]`.
-        pos++;var end=getLastPosition(content,line,column,1);return newNode(type,content,line,column,end);}function checkAttributeName(i){var start=i;var l=undefined;if(l = checkNamePrefix(i))i += l;if(l = checkIdentOrInterpolation(i))i += l;else return 0;return i - start;}function getAttributeName(){var type=NodeType.AttributeNameType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[];if(checkNamePrefix(pos))content.push(getNamePrefix());content = content.concat(getIdentOrInterpolation());return newNode(type,content,line,column);}function checkAttributeMatch(i){var l=undefined;if(l = checkAttributeMatch1(i))tokens[i].attributeMatchType = 1;else if(l = checkAttributeMatch2(i))tokens[i].attributeMatchType = 2;return l;}function getAttributeMatch(){var type=tokens[pos].attributeMatchType;if(type === 1)return getAttributeMatch1();else return getAttributeMatch2();}function checkAttributeMatch1(i){var start=i;var type=tokens[i].type;if(type === TokenType.Tilde || type === TokenType.VerticalLine || type === TokenType.CircumflexAccent || type === TokenType.DollarSign || type === TokenType.Asterisk)i++;else return 0;if(tokens[i].type === TokenType.EqualsSign)i++;else return 0;return i - start;}function getAttributeMatch1(){var type=NodeType.AttributeMatchType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=tokens[pos].value + tokens[pos + 1].value;pos += 2;return newNode(type,content,line,column);}function checkAttributeMatch2(i){if(tokens[i].type === TokenType.EqualsSign)return 1;else return 0;}function getAttributeMatch2(){var type=NodeType.AttributeMatchType;var token=tokens[pos];var line=token.ln;var column=token.col;var content='=';pos++;return newNode(type,content,line,column);}function checkAttributeValue(i){return checkString(i) || checkIdentOrInterpolation(i);}function getAttributeValue(){var type=NodeType.AttributeValueType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[];if(checkString(pos))content.push(getString());else content = content.concat(getIdentOrInterpolation());return newNode(type,content,line,column);}function checkAttributeFlags(i){return checkIdentOrInterpolation(i);}function getAttributeFlags(){var type=NodeType.AttributeFlagsType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=getIdentOrInterpolation();return newNode(type,content,line,column);}function checkNamePrefix(i){if(i >= tokensLength)return 0;var l=undefined;if(l = checkNamePrefix1(i))tokens[i].namePrefixType = 1;else if(l = checkNamePrefix2(i))tokens[i].namePrefixType = 2;return l;}function getNamePrefix(){var type=tokens[pos].namePrefixType;if(type === 1)return getNamePrefix1();else return getNamePrefix2();} /**
+         */
+        function checkAttributeSelector2(i) {
+          var start = i;
+
+          if (tokens[i].type === TokenType.LeftSquareBracket) i++;else return 0;
+
+          var l = void 0;
+          if (l = checkSC(i)) i += l;
+
+          if (l = checkAttributeName(i)) i += l;else return 0;
+
+          if (l = checkSC(i)) i += l;
+
+          if (tokens[i].type === TokenType.RightSquareBracket) i++;else return 0;
+
+          return i - start;
+        }
+
+        function getAttributeSelector2() {
+          var type = NodeType.AttributeSelectorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          // Skip `[`.
+          pos++;
+
+          content = content.concat(getSC());
+          content.push(getAttributeName());
+          content = content.concat(getSC());
+
+          // Skip `]`.
+          pos++;
+
+          var end = getLastPosition(content, line, column, 1);
+          return newNode(type, content, line, column, end);
+        }
+
+        function checkAttributeName(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkNamePrefix(i)) i += l;
+
+          if (l = checkIdentOrInterpolation(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        function getAttributeName() {
+          var type = NodeType.AttributeNameType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          if (checkNamePrefix(pos)) content.push(getNamePrefix());
+          content = content.concat(getIdentOrInterpolation());
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkAttributeMatch(i) {
+          var l = void 0;
+          if (l = checkAttributeMatch1(i)) tokens[i].attributeMatchType = 1;else if (l = checkAttributeMatch2(i)) tokens[i].attributeMatchType = 2;
+
+          return l;
+        }
+
+        function getAttributeMatch() {
+          var type = tokens[pos].attributeMatchType;
+          if (type === 1) return getAttributeMatch1();else return getAttributeMatch2();
+        }
+
+        function checkAttributeMatch1(i) {
+          var start = i;
+
+          var type = tokens[i].type;
+          if (type === TokenType.Tilde || type === TokenType.VerticalLine || type === TokenType.CircumflexAccent || type === TokenType.DollarSign || type === TokenType.Asterisk) i++;else return 0;
+
+          if (tokens[i].type === TokenType.EqualsSign) i++;else return 0;
+
+          return i - start;
+        }
+
+        function getAttributeMatch1() {
+          var type = NodeType.AttributeMatchType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = tokens[pos].value + tokens[pos + 1].value;
+          pos += 2;
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkAttributeMatch2(i) {
+          if (tokens[i].type === TokenType.EqualsSign) return 1;else return 0;
+        }
+
+        function getAttributeMatch2() {
+          var type = NodeType.AttributeMatchType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = '=';
+
+          pos++;
+          return newNode(type, content, line, column);
+        }
+
+        function checkAttributeValue(i) {
+          return checkString(i) || checkIdentOrInterpolation(i);
+        }
+
+        function getAttributeValue() {
+          var type = NodeType.AttributeValueType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          if (checkString(pos)) content.push(getString());else content = content.concat(getIdentOrInterpolation());
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkAttributeFlags(i) {
+          return checkIdentOrInterpolation(i);
+        }
+
+        function getAttributeFlags() {
+          var type = NodeType.AttributeFlagsType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = getIdentOrInterpolation();
+
+          return newNode(type, content, line, column);
+        }
+
+        function checkNamePrefix(i) {
+          if (i >= tokensLength) return 0;
+
+          var l = void 0;
+          if (l = checkNamePrefix1(i)) tokens[i].namePrefixType = 1;else if (l = checkNamePrefix2(i)) tokens[i].namePrefixType = 2;
+
+          return l;
+        }
+
+        function getNamePrefix() {
+          var type = tokens[pos].namePrefixType;
+          if (type === 1) return getNamePrefix1();else return getNamePrefix2();
+        }
+
+        /**
          * (1) `panda|`
          * (2) `panda<comment>|`
-         */function checkNamePrefix1(i){var start=i;var l=undefined;if(l = checkNamespacePrefix(i))i += l;else return 0;if(l = checkCommentML(i))i += l;if(l = checkNamespaceSeparator(i))i += l;else return 0;return i - start;}function getNamePrefix1(){var type=NodeType.NamePrefixType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[];content.push(getNamespacePrefix());if(checkCommentML(pos))content.push(getCommentML());content.push(getNamespaceSeparator());return newNode(type,content,line,column);} /**
+         */
+        function checkNamePrefix1(i) {
+          var start = i;
+          var l = void 0;
+
+          if (l = checkNamespacePrefix(i)) i += l;else return 0;
+
+          if (l = checkCommentML(i)) i += l;
+
+          if (l = checkNamespaceSeparator(i)) i += l;else return 0;
+
+          return i - start;
+        }
+
+        function getNamePrefix1() {
+          var type = NodeType.NamePrefixType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          content.push(getNamespacePrefix());
+
+          if (checkCommentML(pos)) content.push(getCommentML());
+
+          content.push(getNamespaceSeparator());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * (1) `|`
-         */function checkNamePrefix2(i){return checkNamespaceSeparator(i);}function getNamePrefix2(){var type=NodeType.NamePrefixType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[getNamespaceSeparator()];return newNode(type,content,line,column);} /**
+         */
+        function checkNamePrefix2(i) {
+          return checkNamespaceSeparator(i);
+        }
+
+        function getNamePrefix2() {
+          var type = NodeType.NamePrefixType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [getNamespaceSeparator()];
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * (1) `*`
          * (2) `panda`
-         */function checkNamespacePrefix(i){if(i >= tokensLength)return 0;var l=undefined;if(tokens[i].type === TokenType.Asterisk)return 1;else if(l = checkIdentOrInterpolation(i))return l;else return 0;}function getNamespacePrefix(){var type=NodeType.NamespacePrefixType;var token=tokens[pos];var line=token.ln;var column=token.col;var content=[];if(checkIdentOrInterpolation(pos))content = content.concat(getIdentOrInterpolation());return newNode(type,content,line,column);} /**
+         */
+        function checkNamespacePrefix(i) {
+          if (i >= tokensLength) return 0;
+
+          var l = void 0;
+
+          if (tokens[i].type === TokenType.Asterisk) return 1;else if (l = checkIdentOrInterpolation(i)) return l;else return 0;
+        }
+
+        function getNamespacePrefix() {
+          var type = NodeType.NamespacePrefixType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = [];
+
+          if (token.type === TokenType.Asterisk) {
+            var asteriskNode = newNode(NodeType.IdentType, '*', token.ln, token.col);
+            content.push(asteriskNode);
+            pos++;
+          } else if (checkIdentOrInterpolation(pos)) content = content.concat(getIdentOrInterpolation());
+
+          return newNode(type, content, line, column);
+        }
+
+        /**
          * (1) `|`
-         */function checkNamespaceSeparator(i){if(i >= tokensLength)return 0;if(tokens[i].type === TokenType.VerticalLine)return 1;else return 0;}function getNamespaceSeparator(){var type=NodeType.NamespaceSeparatorType;var token=tokens[pos];var line=token.ln;var column=token.col;var content='|';pos++;return newNode(type,content,line,column);}
+         */
+        function checkNamespaceSeparator(i) {
+          if (i >= tokensLength) return 0;
+
+          if (tokens[i].type !== TokenType.VerticalLine) return 0;
+
+          // Return false if `|=` - [attr|=value]
+          if (tokens[i + 1] && tokens[i + 1].type === TokenType.EqualsSign) return 0;
+
+          return 1;
+        }
+
+        function getNamespaceSeparator() {
+          var type = NodeType.NamespaceSeparatorType;
+          var token = tokens[pos];
+          var line = token.ln;
+          var column = token.col;
+          var content = '|';
+
+          pos++;
+          return newNode(type, content, line, column);
+        }
+
+        module.exports = function (_tokens, context) {
+          tokens = _tokens;
+          tokensLength = tokens.length;
+          pos = 0;
+
+          return contexts[context]();
+        };
 
 /***/ },
-/* 14 */
-/***/ function(module, exports) {
+/* 20 */
+/***/ function(module, exports, __webpack_require__) {
 
         'use strict';
 
-        module.exports = {
-          ArgumentsType: 'arguments',
-          AtkeywordType: 'atkeyword',
-          AtruleType: 'atrule',
-          AttributeSelectorType: 'attributeSelector',
-          AttributeNameType: 'attributeName',
-          AttributeFlagsType: 'attributeFlags',
-          AttributeMatchType: 'attributeMatch',
-          AttributeValueType: 'attributeValue',
-          BlockType: 'block',
-          BracketsType: 'brackets',
-          ClassType: 'class',
-          CombinatorType: 'combinator',
-          CommentMLType: 'multilineComment',
-          CommentSLType: 'singlelineComment',
-          ConditionType: 'condition',
-          ConditionalStatementType: 'conditionalStatement',
-          DeclarationType: 'declaration',
-          DeclDelimType: 'declarationDelimiter',
-          DefaultType: 'default',
-          DelimType: 'delimiter',
-          DimensionType: 'dimension',
-          EscapedStringType: 'escapedString',
-          ExtendType: 'extend',
-          ExpressionType: 'expression',
-          FunctionType: 'function',
-          GlobalType: 'global',
-          IdentType: 'ident',
-          ImportantType: 'important',
-          IncludeType: 'include',
-          InterpolationType: 'interpolation',
-          InterpolatedVariableType: 'interpolatedVariable',
-          KeyframesSelectorType: 'keyframesSelector',
-          LoopType: 'loop',
-          MixinType: 'mixin',
-          NamePrefixType: 'namePrefix',
-          NamespacePrefixType: 'namespacePrefix',
-          NamespaceSeparatorType: 'namespaceSeparator',
-          NumberType: 'number',
-          OperatorType: 'operator',
-          OptionalType: 'optional',
-          ParenthesesType: 'parentheses',
-          ParentSelectorType: 'parentSelector',
-          ParentSelectorExtensionType: 'parentSelectorExtension',
-          PercentageType: 'percentage',
-          PlaceholderType: 'placeholder',
-          ProgidType: 'progid',
-          PropertyType: 'property',
-          PropertyDelimType: 'propertyDelimiter',
-          PseudocType: 'pseudoClass',
-          PseudoeType: 'pseudoElement',
-          RawType: 'raw',
-          RulesetType: 'ruleset',
-          SType: 'space',
-          SelectorType: 'selector',
-          ShashType: 'id',
-          StringType: 'string',
-          StylesheetType: 'stylesheet',
-          TypeSelectorType: 'typeSelector',
-          UriType: 'uri',
-          ValueType: 'value',
-          VariableType: 'variable',
-          VariablesListType: 'variablesList',
-          VhashType: 'color'
-        };
-
-/***/ },
-/* 15 */
-/***/ function(module, exports, __webpack_require__) {
-
-        'use strict';
-
         module.exports = function (css, tabSize) {
-          var TokenType = __webpack_require__(12);
+          var TokenType = __webpack_require__(13);
 
           var tokens = [];
           var urlMode = false;
-          var blockMode = 0;
-          var c = undefined; // Current character
-          var cn = undefined; // Next character
+          var c = void 0; // Current character
+          var cn = void 0; // Next character
           var pos = 0;
           var tn = 0;
           var ln = 1;
           var col = 1;
 
           var Punctuation = {
             ' ': TokenType.Space,
             '\n': TokenType.Newline,
             '\r': TokenType.Newline,
             '\t': TokenType.Tab,
@@ skipping 21 matching lines @@
             '>': TokenType.GreaterThanSign,
             '?': TokenType.QuestionMark,
             '@': TokenType.CommercialAt,
             '[': TokenType.LeftSquareBracket,
             ']': TokenType.RightSquareBracket,
             '^': TokenType.CircumflexAccent,
             '_': TokenType.LowLine,
             '{': TokenType.LeftCurlyBracket,
             '|': TokenType.VerticalLine,
             '}': TokenType.RightCurlyBracket,
-            '~': TokenType.Tilde
+            '~': TokenType.Tilde,
+            '`': TokenType.Backtick
           };
 
           /**
            * Add a token to the token list
            * @param {string} type
            * @param {string} value
            */
           function pushToken(type, value, column) {
             tokens.push({
               tn: tn++,
@@ skipping 68 matching lines @@
           }
 
           /**
            * Parse identifier
            * @param {string} css Unparsed part of CSS string
            */
           function parseIdentifier(css) {
             var start = pos;
 
             // Skip all opening slashes:
-            while (css.charAt(pos) === '/') pos++;
-
-            // Read the string until we meet a punctuation mark:
+            while (css.charAt(pos) === '/') {
+              pos++;
+            } // Read the string until we meet a punctuation mark:
             for (; pos < css.length; pos++) {
               // Skip all '\':
               if (css.charAt(pos) === '\\') pos++;else if (css.charAt(pos) in Punctuation) break;
             }
 
             var ident = css.substring(start, pos--);
 
             // Enter url mode if parsed substring is `url`:
             if (!urlMode && ident === 'url' && css.charAt(pos + 1) === '(') {
               urlMode = true;
@@ skipping 125 matching lines @@
                             // Check for CRLF here or just LF
                             if (c === '\r' && cn === '\n' || c === '\n') {
                               // If \r we know the next character is \n due to statement above
                               // so we push a CRLF token type to the token list and importantly
                               // skip the next character so as not to double count newlines or
                               // columns etc
                               if (c === '\r') {
                                 pushToken(TokenType.Newline, '\r\n', col);
                                 pos++; // If CRLF skip the next character and push crlf token
                               } else if (c === '\n') {
-                                  // If just a LF newline and not part of CRLF newline we can just
-                                  // push punctuation as usual
-                                  pushToken(Punctuation[c], c, col);
-                                }
+                                // If just a LF newline and not part of CRLF newline we can just
+                                // push punctuation as usual
+                                pushToken(Punctuation[c], c, col);
+                              }
 
                               ln++; // Go to next line
                               col = 0; // Reset the column count
                             } else if (c !== '\r' && c !== '\n') {
-                                // Handle all other punctuation and add to list of tokens
-                                pushToken(Punctuation[c], c, col);
-                              } // Go to next line
+                              // Handle all other punctuation and add to list of tokens
+                              pushToken(Punctuation[c], c, col);
+                            } // Go to next line
                             if (c === ')') urlMode = false; // Exit url mode
-                            if (c === '{') blockMode++; // Enter a block
-                            if (c === '}') blockMode--; // Exit a block
                             else if (c === '\t' && tabSize > 1) col += tabSize - 1;
                           }
 
                           // If current character is a decimal digit:
                           else if (isDecimalDigit(c)) {
                               parseDecimalNumber(css);
                             }
 
                             // If current character is anything else:
                             else {
                                 parseIdentifier(css);
                               }
             }
 
             return tokens;
           }
 
           return getTokens(css);
         };
 
 /***/ },
-/* 16 */
+/* 21 */
 /***/ function(module, exports, __webpack_require__) {
 
         'use strict';
 
         var Node = __webpack_require__(1);
-        var NodeTypes = __webpack_require__(14);
+        var NodeTypes = __webpack_require__(15);
 
         module.exports = function () {
           return new Node({
             type: NodeTypes.StylesheetType,
             content: [],
             start: [0, 0],
             end: [0, 0]
           });
         };
 
 /***/ }
 /******/ ])
 });
 ;