3 Object.defineProperty(exports, "__esModule", {
7 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; }; }();
9 var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
11 var _comment = require('postcss/lib/comment');
13 var _comment2 = _interopRequireDefault(_comment);
15 var _import2 = require('./import');
17 var _import3 = _interopRequireDefault(_import2);
19 var _parser = require('postcss/lib/parser');
21 var _parser2 = _interopRequireDefault(_parser);
23 var _rule = require('./rule');
25 var _rule2 = _interopRequireDefault(_rule);
27 var _root = require('./root');
29 var _root2 = _interopRequireDefault(_root);
31 var _findExtendRule = require('./find-extend-rule');
33 var _findExtendRule2 = _interopRequireDefault(_findExtendRule);
35 var _isMixinToken = require('./is-mixin-token');
37 var _isMixinToken2 = _interopRequireDefault(_isMixinToken);
39 var _lessTokenize = require('./less-tokenize');
41 var _lessTokenize2 = _interopRequireDefault(_lessTokenize);
43 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
45 function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
47 function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
49 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
51 var blockCommentEndPattern = /\*\/$/;
53 var LessParser = function (_Parser) {
54 _inherits(LessParser, _Parser);
56 function LessParser(input) {
57 _classCallCheck(this, LessParser);
59 var _this = _possibleConstructorReturn(this, (LessParser.__proto__ || Object.getPrototypeOf(LessParser)).call(this, input));
61 _this.root = new _root2.default();
62 _this.current = _this.root;
63 _this.root.source = { input: input, start: { line: 1, column: 1 } };
67 _createClass(LessParser, [{
69 value: function atrule(token) {
70 if (token[1] === '@import') {
73 _get(LessParser.prototype.__proto__ || Object.getPrototypeOf(LessParser.prototype), 'atrule', this).call(this, token);
78 value: function comment(token) {
79 var node = new _comment2.default();
80 var content = token[1];
81 var text = content.slice(2).replace(blockCommentEndPattern, '');
83 this.init(node, token[2], token[3]);
89 node.raws.content = content;
90 node.raws.begin = content[0] + content[1];
91 node.inline = token[6] === 'inline';
92 node.block = !node.inline;
94 if (/^\s*$/.test(text)) {
96 node.raws.left = text;
99 var match = text.match(/^(\s*)([^]*[^\s])(\s*)$/);
101 node.text = match[2];
103 // Add extra spaces to generate a comment in a common style /*[space][text][space]*/
104 node.raws.left = match[1] || ' ';
105 node.raws.right = match[3] || ' ';
110 * @description Create a Declaration
111 * @param options {{start: number}}
115 key: 'createDeclaration',
116 value: function createDeclaration(options) {
117 this.decl(this.tokens.slice(options.start, this.pos + 1));
121 * @description Create a Rule node
122 * @param options {{start: number, params: Array}}
127 value: function createRule(options) {
129 var semi = this.tokens[this.pos][0] === ';';
130 var end = this.pos + (options.empty && semi ? 2 : 1);
131 var tokens = this.tokens.slice(options.start, end);
132 var node = this.rule(tokens);
135 * By default in PostCSS `Rule.params` is `undefined`.
136 * To preserve compability with PostCSS:
137 * - Don't set empty params for a Rule.
138 * - Set params for a Rule only if it can be a mixin or &:extend rule.
140 if (options.params[0] && (options.mixin || options.extend)) {
141 this.raw(node, 'params', options.params);
145 // if it's an empty mixin or extend, it must have a semicolon
146 // (that's the only way we get to this point)
148 node.raws.semicolon = this.semicolon = true;
149 node.selector = node.selector.replace(/;$/, '');
152 if (options.extend) {
161 * @description Mark mixin without declarations.
166 // eslint-disable-next-line
167 delete this.current.nodes;
169 if (/!\s*important/i.test(node.selector)) {
170 node.important = true;
172 if (/\s*!\s*important/i.test(node.selector)) {
173 node.raws.important = node.selector.match(/(\s*!\s*important)/i)[1];
176 node.selector = node.selector.replace(/\s*!\s*important/i, '');
179 // rules don't have trailing semicolons in vanilla css, so they get
180 // added to this.spaces by the parser loop, so don't step back.
185 this.end(this.tokens[this.pos]);
190 value: function end(token) {
191 var node = this.current;
193 // if a Rule contains other Rules (mixins, extends) and those have
194 // semicolons, assert that the parent Rule has a semicolon
195 if (node.nodes && node.nodes.length && node.last.raws.semicolon && !node.last.nodes) {
196 this.semicolon = true;
199 _get(LessParser.prototype.__proto__ || Object.getPrototypeOf(LessParser.prototype), 'end', this).call(this, token);
203 value: function _import(token) {
204 /* eslint complexity: 0 */
207 end = { line: 0, column: 0 };
210 var node = new _import3.default();
212 node.name = token[1].slice(1);
214 this.init(node, token[2], token[3]);
218 while (this.pos < this.tokens.length) {
219 var tokn = this.tokens[this.pos];
221 if (tokn[0] === ';') {
222 end = { line: tokn[2], column: tokn[3] };
223 node.raws.semicolon = true;
225 } else if (tokn[0] === '{') {
228 } else if (tokn[0] === '}') {
231 } else if (tokn[0] === 'brackets') {
233 node.importPath = tokn[1].replace(/[()]/g, '');
235 directives.push(tokn);
237 } else if (tokn[0] === 'space') {
238 if (directives.length) {
239 node.raws.between = tokn[1];
240 } else if (node.urlFunc) {
241 node.raws.beforeUrl = tokn[1];
242 } else if (node.importPath) {
244 node.raws.afterUrl = tokn[1];
246 node.raws.after = tokn[1];
249 node.raws.afterName = tokn[1];
251 } else if (tokn[0] === 'word' && tokn[1] === 'url') {
254 if (tokn[0] !== '(' && tokn[0] !== ')') {
255 node.importPath = tokn[1];
259 if (this.pos === this.tokens.length) {
267 if (node.raws.between && !node.raws.afterName) {
268 node.raws.afterName = node.raws.between;
269 node.raws.between = '';
272 node.source.end = end;
274 if (directives.length) {
275 this.raw(node, 'directives', directives);
278 token = directives[directives.length - 1];
279 node.source.end = { line: token[4], column: token[5] };
280 this.spaces = node.raws.between;
281 node.raws.between = '';
284 node.directives = '';
293 /* eslint-disable max-statements, complexity */
297 value: function other() {
300 var start = this.pos;
306 // we need pass "()" as spaces
307 // However we can override method Parser.loop, but it seems less maintainable
308 if (this.tokens[start][0] === 'brackets') {
309 this.spaces += this.tokens[start][1];
313 var mixin = (0, _isMixinToken2.default)(this.tokens[start]);
314 var extend = Boolean((0, _findExtendRule2.default)(this.tokens, start));
316 while (this.pos < this.tokens.length) {
317 var token = this.tokens[this.pos];
320 if (type === '(' || type === '[') {
325 brackets.push(type === '(' ? ')' : ']');
326 } else if (brackets.length === 0) {
328 var foundEndOfRule = this.ruleEnd({
336 if (foundEndOfRule) {
341 } else if (type === '{') {
342 this.createRule({ start: start, params: params, mixin: mixin });
344 } else if (type === '}') {
348 } else if (type === ':') {
351 } else if (type === brackets[brackets.length - 1]) {
353 if (brackets.length === 0) {
358 // we don't want to add params for pseudo-selectors that utilize parens (#56)
359 // if ((extend || !colon) && (brackets.length > 0 || type === 'brackets' || params[0])) {
360 // params.push(token);
363 // we don't want to add params for pseudo-selectors that utilize parens (#56) or bracket selectors (#96)
364 if ((extend || !colon) && (brackets.length > 0 || type === 'brackets' || params[0]) && brackets[0] !== ']') {
371 if (this.pos === this.tokens.length) {
376 if (brackets.length > 0) {
377 this.unclosedBracket(bracket);
380 // dont process an end of rule if there's only one token and it's unknown (#64)
381 if (end && this.tokens.length > 1) {
382 // Handle the case where the there is only a single token in the end rule.
383 if (start === this.pos) {
387 var _foundEndOfRule = this.ruleEnd({
396 if (_foundEndOfRule) {
401 this.unknownWord(start);
405 value: function rule(tokens) {
408 var node = new _rule2.default();
410 this.init(node, tokens[0][2], tokens[0][3]);
412 //node.raws.between = this.spacesFromEnd(tokens);
413 node.raws.between = this.spacesAndCommentsFromEnd(tokens);
415 this.raw(node, 'selector', tokens);
422 value: function ruleEnd(options) {
423 var start = options.start;
426 if (options.extend || options.mixin) {
427 this.createRule(Object.assign(options, { empty: true }));
432 if (options.isEndOfBlock) {
433 while (this.pos > start) {
434 var token = this.tokens[this.pos][0];
436 if (token !== 'space' && token !== 'comment') {
444 this.createDeclaration({ start: start });
452 value: function tokenize() {
453 this.tokens = (0, _lessTokenize2.default)(this.input);
456 /* eslint-enable max-statements, complexity */
463 exports.default = LessParser;
464 module.exports = exports['default'];