'use strict';
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exports.__esModule = true;
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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; }; }();
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var _dotProp = require('dot-prop');
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var _dotProp2 = _interopRequireDefault(_dotProp);
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var _indexesOf = require('indexes-of');
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var _indexesOf2 = _interopRequireDefault(_indexesOf);
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var _uniq = require('uniq');
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var _uniq2 = _interopRequireDefault(_uniq);
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var _root = require('./selectors/root');
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var _root2 = _interopRequireDefault(_root);
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var _selector = require('./selectors/selector');
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var _selector2 = _interopRequireDefault(_selector);
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var _className = require('./selectors/className');
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var _className2 = _interopRequireDefault(_className);
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var _comment = require('./selectors/comment');
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var _comment2 = _interopRequireDefault(_comment);
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var _id = require('./selectors/id');
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var _id2 = _interopRequireDefault(_id);
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var _tag = require('./selectors/tag');
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var _tag2 = _interopRequireDefault(_tag);
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var _string = require('./selectors/string');
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var _string2 = _interopRequireDefault(_string);
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var _pseudo = require('./selectors/pseudo');
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var _pseudo2 = _interopRequireDefault(_pseudo);
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var _attribute = require('./selectors/attribute');
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var _attribute2 = _interopRequireDefault(_attribute);
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var _universal = require('./selectors/universal');
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var _universal2 = _interopRequireDefault(_universal);
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var _combinator = require('./selectors/combinator');
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var _combinator2 = _interopRequireDefault(_combinator);
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var _nesting = require('./selectors/nesting');
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var _nesting2 = _interopRequireDefault(_nesting);
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var _sortAscending = require('./sortAscending');
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var _sortAscending2 = _interopRequireDefault(_sortAscending);
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var _tokenize = require('./tokenize');
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var _tokenize2 = _interopRequireDefault(_tokenize);
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var _tokenTypes = require('./tokenTypes');
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var tokens = _interopRequireWildcard(_tokenTypes);
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var _types = require('./selectors/types');
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var types = _interopRequireWildcard(_types);
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function getSource(startLine, startColumn, endLine, endColumn) {
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return {
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start: {
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line: startLine,
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column: startColumn
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},
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end: {
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line: endLine,
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column: endColumn
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}
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};
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}
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var Parser = function () {
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function Parser(rule) {
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var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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_classCallCheck(this, Parser);
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this.rule = rule;
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this.options = Object.assign({ lossy: false, safe: false }, options);
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this.position = 0;
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this.root = new _root2.default();
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this.root.errorGenerator = this._errorGenerator();
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var selector = new _selector2.default();
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this.root.append(selector);
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this.current = selector;
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this.css = typeof this.rule === 'string' ? this.rule : this.rule.selector;
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if (this.options.lossy) {
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this.css = this.css.trim();
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}
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this.tokens = (0, _tokenize2.default)({
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css: this.css,
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error: this._errorGenerator(),
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safe: this.options.safe
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});
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this.loop();
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}
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Parser.prototype._errorGenerator = function _errorGenerator() {
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var _this = this;
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return function (message, errorOptions) {
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if (typeof _this.rule === 'string') {
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return new Error(message);
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}
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return _this.rule.error(message, errorOptions);
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};
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};
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Parser.prototype.attribute = function attribute() {
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var attr = [];
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var startingToken = this.currToken;
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this.position++;
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while (this.position < this.tokens.length && this.currToken[0] !== tokens.closeSquare) {
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attr.push(this.currToken);
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this.position++;
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}
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if (this.currToken[0] !== tokens.closeSquare) {
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return this.expected('closing square bracket', this.currToken[5]);
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}
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var len = attr.length;
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var node = {
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source: getSource(startingToken[1], startingToken[2], this.currToken[3], this.currToken[4]),
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sourceIndex: startingToken[5]
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};
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if (len === 1 && !~[tokens.word].indexOf(attr[0][0])) {
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return this.expected('attribute', attr[0][5]);
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}
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var pos = 0;
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var spaceBefore = '';
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var commentBefore = '';
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var lastAdded = null;
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var spaceAfterMeaningfulToken = false;
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while (pos < len) {
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var token = attr[pos];
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var content = this.content(token);
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var next = attr[pos + 1];
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switch (token[0]) {
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case tokens.space:
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if (len === 1 || pos === 0 && this.content(next) === '|') {
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return this.expected('attribute', token[5], content);
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}
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spaceAfterMeaningfulToken = true;
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if (this.options.lossy) {
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break;
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}
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if (lastAdded) {
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var spaceProp = 'spaces.' + lastAdded + '.after';
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_dotProp2.default.set(node, spaceProp, _dotProp2.default.get(node, spaceProp, '') + content);
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var commentProp = 'raws.spaces.' + lastAdded + '.after';
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var existingComment = _dotProp2.default.get(node, commentProp);
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if (existingComment) {
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_dotProp2.default.set(node, commentProp, existingComment + content);
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}
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} else {
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spaceBefore = spaceBefore + content;
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commentBefore = commentBefore + content;
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}
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break;
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case tokens.asterisk:
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if (next[0] === tokens.equals) {
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node.operator = content;
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lastAdded = 'operator';
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} else if ((!node.namespace || lastAdded === "namespace" && !spaceAfterMeaningfulToken) && next) {
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if (spaceBefore) {
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_dotProp2.default.set(node, 'spaces.attribute.before', spaceBefore);
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spaceBefore = '';
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}
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if (commentBefore) {
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_dotProp2.default.set(node, 'raws.spaces.attribute.before', spaceBefore);
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commentBefore = '';
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}
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node.namespace = (node.namespace || "") + content;
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var rawValue = _dotProp2.default.get(node, "raws.namespace");
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if (rawValue) {
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node.raws.namespace += content;
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}
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lastAdded = 'namespace';
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}
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spaceAfterMeaningfulToken = false;
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break;
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case tokens.dollar:
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case tokens.caret:
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if (next[0] === tokens.equals) {
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node.operator = content;
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lastAdded = 'operator';
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}
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spaceAfterMeaningfulToken = false;
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break;
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case tokens.combinator:
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if (content === '~' && next[0] === tokens.equals) {
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node.operator = content;
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lastAdded = 'operator';
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}
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if (content !== '|') {
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spaceAfterMeaningfulToken = false;
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break;
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}
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if (next[0] === tokens.equals) {
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node.operator = content;
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lastAdded = 'operator';
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} else if (!node.namespace && !node.attribute) {
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node.namespace = true;
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}
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spaceAfterMeaningfulToken = false;
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break;
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case tokens.word:
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if (next && this.content(next) === '|' && attr[pos + 2] && attr[pos + 2][0] !== tokens.equals && // this look-ahead probably fails with comment nodes involved.
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!node.operator && !node.namespace) {
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node.namespace = content;
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lastAdded = 'namespace';
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} else if (!node.attribute || lastAdded === "attribute" && !spaceAfterMeaningfulToken) {
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if (spaceBefore) {
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_dotProp2.default.set(node, 'spaces.attribute.before', spaceBefore);
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spaceBefore = '';
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}
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if (commentBefore) {
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_dotProp2.default.set(node, 'raws.spaces.attribute.before', commentBefore);
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commentBefore = '';
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}
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node.attribute = (node.attribute || "") + content;
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var _rawValue = _dotProp2.default.get(node, "raws.attribute");
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if (_rawValue) {
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node.raws.attribute += content;
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}
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lastAdded = 'attribute';
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} else if (!node.value || lastAdded === "value" && !spaceAfterMeaningfulToken) {
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node.value = (node.value || "") + content;
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var _rawValue2 = _dotProp2.default.get(node, "raws.value");
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if (_rawValue2) {
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node.raws.value += content;
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}
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lastAdded = 'value';
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_dotProp2.default.set(node, 'raws.unquoted', _dotProp2.default.get(node, 'raws.unquoted', '') + content);
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} else if (content === 'i') {
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if (node.value && (node.quoted || spaceAfterMeaningfulToken)) {
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node.insensitive = true;
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lastAdded = 'insensitive';
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if (spaceBefore) {
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_dotProp2.default.set(node, 'spaces.insensitive.before', spaceBefore);
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spaceBefore = '';
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}
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if (commentBefore) {
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_dotProp2.default.set(node, 'raws.spaces.insensitive.before', commentBefore);
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commentBefore = '';
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}
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} else if (node.value) {
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lastAdded = 'value';
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node.value += 'i';
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if (node.raws.value) {
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node.raws.value += 'i';
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}
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}
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}
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spaceAfterMeaningfulToken = false;
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break;
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case tokens.str:
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if (!node.attribute || !node.operator) {
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return this.error('Expected an attribute followed by an operator preceding the string.', {
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index: token[5]
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});
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}
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node.value = content;
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node.quoted = true;
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lastAdded = 'value';
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_dotProp2.default.set(node, 'raws.unquoted', content.slice(1, -1));
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spaceAfterMeaningfulToken = false;
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break;
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case tokens.equals:
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if (!node.attribute) {
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return this.expected('attribute', token[5], content);
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}
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if (node.value) {
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return this.error('Unexpected "=" found; an operator was already defined.', { index: token[5] });
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}
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node.operator = node.operator ? node.operator + content : content;
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lastAdded = 'operator';
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spaceAfterMeaningfulToken = false;
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break;
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case tokens.comment:
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if (lastAdded) {
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if (spaceAfterMeaningfulToken || next && next[0] === tokens.space) {
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var lastComment = _dotProp2.default.get(node, 'raws.spaces.' + lastAdded + '.after', _dotProp2.default.get(node, 'spaces.' + lastAdded + '.after', ''));
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_dotProp2.default.set(node, 'raws.spaces.' + lastAdded + '.after', lastComment + content);
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} else {
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var lastValue = _dotProp2.default.get(node, 'raws.' + lastAdded, _dotProp2.default.get(node, lastAdded, ''));
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_dotProp2.default.set(node, 'raws.' + lastAdded, lastValue + content);
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}
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} else {
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commentBefore = commentBefore + content;
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}
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break;
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default:
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return this.error('Unexpected "' + content + '" found.', { index: token[5] });
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}
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pos++;
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}
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this.newNode(new _attribute2.default(node));
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this.position++;
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};
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Parser.prototype.combinator = function combinator() {
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var current = this.currToken;
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if (this.content() === '|') {
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return this.namespace();
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}
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var node = new _combinator2.default({
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value: '',
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source: getSource(current[1], current[2], current[3], current[4]),
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sourceIndex: current[5]
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});
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while (this.position < this.tokens.length && this.currToken && (this.currToken[0] === tokens.space || this.currToken[0] === tokens.combinator)) {
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var content = this.content();
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if (this.nextToken && this.nextToken[0] === tokens.combinator) {
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node.spaces.before = this.parseSpace(content);
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node.source = getSource(this.nextToken[1], this.nextToken[2], this.nextToken[3], this.nextToken[4]);
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node.sourceIndex = this.nextToken[5];
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} else if (this.prevToken && this.prevToken[0] === tokens.combinator) {
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node.spaces.after = this.parseSpace(content);
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} else if (this.currToken[0] === tokens.combinator) {
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node.value = content;
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} else if (this.currToken[0] === tokens.space) {
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node.value = this.parseSpace(content, ' ');
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}
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this.position++;
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}
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return this.newNode(node);
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};
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Parser.prototype.comma = function comma() {
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if (this.position === this.tokens.length - 1) {
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this.root.trailingComma = true;
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this.position++;
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return;
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}
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var selector = new _selector2.default();
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this.current.parent.append(selector);
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this.current = selector;
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this.position++;
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};
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Parser.prototype.comment = function comment() {
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var current = this.currToken;
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this.newNode(new _comment2.default({
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value: this.content(),
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source: getSource(current[1], current[2], current[3], current[4]),
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sourceIndex: current[5]
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}));
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this.position++;
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};
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Parser.prototype.error = function error(message, opts) {
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throw this.root.error(message, opts);
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};
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Parser.prototype.missingBackslash = function missingBackslash() {
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return this.error('Expected a backslash preceding the semicolon.', {
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index: this.currToken[5]
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});
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};
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Parser.prototype.missingParenthesis = function missingParenthesis() {
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return this.expected('opening parenthesis', this.currToken[5]);
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};
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Parser.prototype.missingSquareBracket = function missingSquareBracket() {
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return this.expected('opening square bracket', this.currToken[5]);
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};
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Parser.prototype.namespace = function namespace() {
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var before = this.prevToken && this.content(this.prevToken) || true;
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if (this.nextToken[0] === tokens.word) {
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this.position++;
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return this.word(before);
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} else if (this.nextToken[0] === tokens.asterisk) {
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this.position++;
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return this.universal(before);
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}
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};
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Parser.prototype.nesting = function nesting() {
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var current = this.currToken;
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this.newNode(new _nesting2.default({
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value: this.content(),
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source: getSource(current[1], current[2], current[3], current[4]),
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sourceIndex: current[5]
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}));
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this.position++;
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};
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Parser.prototype.parentheses = function parentheses() {
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var last = this.current.last;
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var balanced = 1;
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this.position++;
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if (last && last.type === types.PSEUDO) {
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var selector = new _selector2.default();
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var cache = this.current;
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last.append(selector);
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this.current = selector;
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while (this.position < this.tokens.length && balanced) {
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if (this.currToken[0] === tokens.openParenthesis) {
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balanced++;
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}
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if (this.currToken[0] === tokens.closeParenthesis) {
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balanced--;
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}
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if (balanced) {
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this.parse();
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} else {
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selector.parent.source.end.line = this.currToken[3];
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selector.parent.source.end.column = this.currToken[4];
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this.position++;
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}
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}
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this.current = cache;
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} else {
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last.value += '(';
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while (this.position < this.tokens.length && balanced) {
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if (this.currToken[0] === tokens.openParenthesis) {
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balanced++;
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}
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if (this.currToken[0] === tokens.closeParenthesis) {
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balanced--;
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}
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last.value += this.parseParenthesisToken(this.currToken);
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this.position++;
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}
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}
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if (balanced) {
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return this.expected('closing parenthesis', this.currToken[5]);
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}
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};
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Parser.prototype.pseudo = function pseudo() {
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var _this2 = this;
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var pseudoStr = '';
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var startingToken = this.currToken;
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while (this.currToken && this.currToken[0] === tokens.colon) {
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pseudoStr += this.content();
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this.position++;
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}
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if (!this.currToken) {
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return this.expected(['pseudo-class', 'pseudo-element'], this.position - 1);
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}
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if (this.currToken[0] === tokens.word) {
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this.splitWord(false, function (first, length) {
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pseudoStr += first;
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_this2.newNode(new _pseudo2.default({
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value: pseudoStr,
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source: getSource(startingToken[1], startingToken[2], _this2.currToken[3], _this2.currToken[4]),
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sourceIndex: startingToken[5]
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}));
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if (length > 1 && _this2.nextToken && _this2.nextToken[0] === tokens.openParenthesis) {
|
_this2.error('Misplaced parenthesis.', {
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index: _this2.nextToken[5]
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});
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}
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});
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} else {
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return this.expected(['pseudo-class', 'pseudo-element'], this.currToken[5]);
|
}
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};
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Parser.prototype.space = function space() {
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var content = this.content();
|
// Handle space before and after the selector
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if (this.position === 0 || this.prevToken[0] === tokens.comma || this.prevToken[0] === tokens.openParenthesis) {
|
this.spaces = this.parseSpace(content);
|
this.position++;
|
} else if (this.position === this.tokens.length - 1 || this.nextToken[0] === tokens.comma || this.nextToken[0] === tokens.closeParenthesis) {
|
this.current.last.spaces.after = this.parseSpace(content);
|
this.position++;
|
} else {
|
this.combinator();
|
}
|
};
|
|
Parser.prototype.string = function string() {
|
var current = this.currToken;
|
this.newNode(new _string2.default({
|
value: this.content(),
|
source: getSource(current[1], current[2], current[3], current[4]),
|
sourceIndex: current[5]
|
}));
|
this.position++;
|
};
|
|
Parser.prototype.universal = function universal(namespace) {
|
var nextToken = this.nextToken;
|
if (nextToken && this.content(nextToken) === '|') {
|
this.position++;
|
return this.namespace();
|
}
|
var current = this.currToken;
|
this.newNode(new _universal2.default({
|
value: this.content(),
|
source: getSource(current[1], current[2], current[3], current[4]),
|
sourceIndex: current[5]
|
}), namespace);
|
this.position++;
|
};
|
|
Parser.prototype.splitWord = function splitWord(namespace, firstCallback) {
|
var _this3 = this;
|
|
var nextToken = this.nextToken;
|
var word = this.content();
|
while (nextToken && ~[tokens.dollar, tokens.caret, tokens.equals, tokens.word].indexOf(nextToken[0])) {
|
this.position++;
|
var current = this.content();
|
word += current;
|
if (current.lastIndexOf('\\') === current.length - 1) {
|
var next = this.nextToken;
|
if (next && next[0] === tokens.space) {
|
word += this.parseSpace(this.content(next), ' ');
|
this.position++;
|
}
|
}
|
nextToken = this.nextToken;
|
}
|
var hasClass = (0, _indexesOf2.default)(word, '.');
|
var hasId = (0, _indexesOf2.default)(word, '#');
|
// Eliminate Sass interpolations from the list of id indexes
|
var interpolations = (0, _indexesOf2.default)(word, '#{');
|
if (interpolations.length) {
|
hasId = hasId.filter(function (hashIndex) {
|
return !~interpolations.indexOf(hashIndex);
|
});
|
}
|
var indices = (0, _sortAscending2.default)((0, _uniq2.default)([0].concat(hasClass, hasId)));
|
indices.forEach(function (ind, i) {
|
var index = indices[i + 1] || word.length;
|
var value = word.slice(ind, index);
|
if (i === 0 && firstCallback) {
|
return firstCallback.call(_this3, value, indices.length);
|
}
|
var node = void 0;
|
var current = _this3.currToken;
|
var sourceIndex = current[5] + indices[i];
|
var source = getSource(current[1], current[2] + ind, current[3], current[2] + (index - 1));
|
if (~hasClass.indexOf(ind)) {
|
node = new _className2.default({
|
value: value.slice(1),
|
source: source,
|
sourceIndex: sourceIndex
|
});
|
} else if (~hasId.indexOf(ind)) {
|
node = new _id2.default({
|
value: value.slice(1),
|
source: source,
|
sourceIndex: sourceIndex
|
});
|
} else {
|
node = new _tag2.default({
|
value: value,
|
source: source,
|
sourceIndex: sourceIndex
|
});
|
}
|
_this3.newNode(node, namespace);
|
// Ensure that the namespace is used only once
|
namespace = null;
|
});
|
this.position++;
|
};
|
|
Parser.prototype.word = function word(namespace) {
|
var nextToken = this.nextToken;
|
if (nextToken && this.content(nextToken) === '|') {
|
this.position++;
|
return this.namespace();
|
}
|
return this.splitWord(namespace);
|
};
|
|
Parser.prototype.loop = function loop() {
|
while (this.position < this.tokens.length) {
|
this.parse(true);
|
}
|
return this.root;
|
};
|
|
Parser.prototype.parse = function parse(throwOnParenthesis) {
|
switch (this.currToken[0]) {
|
case tokens.space:
|
this.space();
|
break;
|
case tokens.comment:
|
this.comment();
|
break;
|
case tokens.openParenthesis:
|
this.parentheses();
|
break;
|
case tokens.closeParenthesis:
|
if (throwOnParenthesis) {
|
this.missingParenthesis();
|
}
|
break;
|
case tokens.openSquare:
|
this.attribute();
|
break;
|
case tokens.dollar:
|
case tokens.caret:
|
case tokens.equals:
|
case tokens.word:
|
this.word();
|
break;
|
case tokens.colon:
|
this.pseudo();
|
break;
|
case tokens.comma:
|
this.comma();
|
break;
|
case tokens.asterisk:
|
this.universal();
|
break;
|
case tokens.ampersand:
|
this.nesting();
|
break;
|
case tokens.combinator:
|
this.combinator();
|
break;
|
case tokens.str:
|
this.string();
|
break;
|
// These cases throw; no break needed.
|
case tokens.closeSquare:
|
this.missingSquareBracket();
|
case tokens.semicolon:
|
this.missingBackslash();
|
}
|
};
|
|
/**
|
* Helpers
|
*/
|
|
Parser.prototype.expected = function expected(description, index, found) {
|
if (Array.isArray(description)) {
|
var last = description.pop();
|
description = description.join(', ') + ' or ' + last;
|
}
|
var an = /^[aeiou]/.test(description[0]) ? 'an' : 'a';
|
if (!found) {
|
return this.error('Expected ' + an + ' ' + description + '.', { index: index });
|
}
|
return this.error('Expected ' + an + ' ' + description + ', found "' + found + '" instead.', { index: index });
|
};
|
|
Parser.prototype.parseNamespace = function parseNamespace(namespace) {
|
if (this.options.lossy && typeof namespace === 'string') {
|
var trimmed = namespace.trim();
|
if (!trimmed.length) {
|
return true;
|
}
|
|
return trimmed;
|
}
|
|
return namespace;
|
};
|
|
Parser.prototype.parseSpace = function parseSpace(space) {
|
var replacement = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
|
|
return this.options.lossy ? replacement : space;
|
};
|
|
Parser.prototype.parseValue = function parseValue(value) {
|
if (!this.options.lossy || !value || typeof value !== 'string') {
|
return value;
|
}
|
return value.trim();
|
};
|
|
Parser.prototype.parseParenthesisToken = function parseParenthesisToken(token) {
|
var content = this.content(token);
|
if (!this.options.lossy) {
|
return content;
|
}
|
|
if (token[0] === tokens.space) {
|
return this.parseSpace(content, ' ');
|
}
|
|
return this.parseValue(content);
|
};
|
|
Parser.prototype.newNode = function newNode(node, namespace) {
|
if (namespace) {
|
node.namespace = this.parseNamespace(namespace);
|
}
|
if (this.spaces) {
|
node.spaces.before = this.spaces;
|
this.spaces = '';
|
}
|
return this.current.append(node);
|
};
|
|
Parser.prototype.content = function content() {
|
var token = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.currToken;
|
|
return this.css.slice(token[5], token[6]);
|
};
|
|
_createClass(Parser, [{
|
key: 'currToken',
|
get: function get() {
|
return this.tokens[this.position];
|
}
|
}, {
|
key: 'nextToken',
|
get: function get() {
|
return this.tokens[this.position + 1];
|
}
|
}, {
|
key: 'prevToken',
|
get: function get() {
|
return this.tokens[this.position - 1];
|
}
|
}]);
|
|
return Parser;
|
}();
|
|
exports.default = Parser;
|
module.exports = exports['default'];
|
