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1088 lines
43 KiB
1088 lines
43 KiB
'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 _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
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var _WHITESPACE_TOKENS, _extends2;
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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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var _util = require('./util');
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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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var WHITESPACE_TOKENS = (_WHITESPACE_TOKENS = {}, _WHITESPACE_TOKENS[tokens.space] = true, _WHITESPACE_TOKENS[tokens.cr] = true, _WHITESPACE_TOKENS[tokens.feed] = true, _WHITESPACE_TOKENS[tokens.newline] = true, _WHITESPACE_TOKENS[tokens.tab] = true, _WHITESPACE_TOKENS);
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var WHITESPACE_EQUIV_TOKENS = _extends({}, WHITESPACE_TOKENS, (_extends2 = {}, _extends2[tokens.comment] = true, _extends2));
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function tokenStart(token) {
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return {
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line: token[_tokenize.FIELDS.START_LINE],
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column: token[_tokenize.FIELDS.START_COL]
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};
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}
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function tokenEnd(token) {
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return {
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line: token[_tokenize.FIELDS.END_LINE],
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column: token[_tokenize.FIELDS.END_COL]
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};
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}
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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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function getTokenSource(token) {
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return getSource(token[_tokenize.FIELDS.START_LINE], token[_tokenize.FIELDS.START_COL], token[_tokenize.FIELDS.END_LINE], token[_tokenize.FIELDS.END_COL]);
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}
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function getTokenSourceSpan(startToken, endToken) {
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if (!startToken) {
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return undefined;
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}
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return getSource(startToken[_tokenize.FIELDS.START_LINE], startToken[_tokenize.FIELDS.START_COL], endToken[_tokenize.FIELDS.END_LINE], endToken[_tokenize.FIELDS.END_COL]);
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}
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function unescapeProp(node, prop) {
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var value = node[prop];
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if (typeof value !== "string") {
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return;
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}
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if (value.indexOf("\\") !== -1) {
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(0, _util.ensureObject)(node, 'raws');
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node[prop] = (0, _util.unesc)(value);
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if (node.raws[prop] === undefined) {
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node.raws[prop] = value;
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}
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}
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return node;
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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.css = typeof this.rule === 'string' ? this.rule : this.rule.selector;
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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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var rootSource = getTokenSourceSpan(this.tokens[0], this.tokens[this.tokens.length - 1]);
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this.root = new _root2.default({ source: rootSource });
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this.root.errorGenerator = this._errorGenerator();
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var selector = new _selector2.default({ source: { start: { line: 1, column: 1 } } });
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this.root.append(selector);
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this.current = selector;
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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[_tokenize.FIELDS.TYPE] !== 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[_tokenize.FIELDS.TYPE] !== tokens.closeSquare) {
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return this.expected('closing square bracket', this.currToken[_tokenize.FIELDS.START_POS]);
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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[_tokenize.FIELDS.START_POS]
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};
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if (len === 1 && !~[tokens.word].indexOf(attr[0][_tokenize.FIELDS.TYPE])) {
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return this.expected('attribute', attr[0][_tokenize.FIELDS.START_POS]);
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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[_tokenize.FIELDS.TYPE]) {
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case tokens.space:
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// if (
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// len === 1 ||
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// pos === 0 && this.content(next) === '|'
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// ) {
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// return this.expected('attribute', token[TOKEN.START_POS], 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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(0, _util.ensureObject)(node, 'spaces', lastAdded);
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var prevContent = node.spaces[lastAdded].after || '';
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node.spaces[lastAdded].after = prevContent + content;
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var existingComment = (0, _util.getProp)(node, 'raws', 'spaces', lastAdded, 'after') || null;
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if (existingComment) {
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node.raws.spaces[lastAdded].after = 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[_tokenize.FIELDS.TYPE] === 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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(0, _util.ensureObject)(node, 'spaces', 'attribute');
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node.spaces.attribute.before = spaceBefore;
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spaceBefore = '';
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}
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if (commentBefore) {
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(0, _util.ensureObject)(node, 'raws', 'spaces', 'attribute');
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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 = (0, _util.getProp)(node, 'raws', 'namespace') || null;
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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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if (lastAdded === "value") {
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var oldRawValue = (0, _util.getProp)(node, 'raws', 'value');
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node.value += "$";
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if (oldRawValue) {
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node.raws.value = oldRawValue + "$";
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}
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break;
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}
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// Falls through
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case tokens.caret:
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if (next[_tokenize.FIELDS.TYPE] === 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[_tokenize.FIELDS.TYPE] === 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[_tokenize.FIELDS.TYPE] === 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][_tokenize.FIELDS.TYPE] !== 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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(0, _util.ensureObject)(node, 'spaces', 'attribute');
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node.spaces.attribute.before = spaceBefore;
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spaceBefore = '';
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}
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if (commentBefore) {
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(0, _util.ensureObject)(node, 'raws', 'spaces', 'attribute');
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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 = (0, _util.getProp)(node, 'raws', 'attribute') || null;
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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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var _unescaped = (0, _util.unesc)(content);
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var _oldRawValue = (0, _util.getProp)(node, 'raws', 'value') || '';
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var oldValue = node.value || '';
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node.value = oldValue + _unescaped;
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node.quoteMark = null;
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if (_unescaped !== content || _oldRawValue) {
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(0, _util.ensureObject)(node, 'raws');
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node.raws.value = (_oldRawValue || oldValue) + content;
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}
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lastAdded = 'value';
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} else {
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var insensitive = content === 'i' || content === "I";
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if (node.value && (node.quoteMark || spaceAfterMeaningfulToken)) {
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node.insensitive = insensitive;
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if (!insensitive || content === "I") {
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(0, _util.ensureObject)(node, 'raws');
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node.raws.insensitiveFlag = content;
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}
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lastAdded = 'insensitive';
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if (spaceBefore) {
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(0, _util.ensureObject)(node, 'spaces', 'insensitive');
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node.spaces.insensitive.before = spaceBefore;
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spaceBefore = '';
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}
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if (commentBefore) {
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(0, _util.ensureObject)(node, 'raws', 'spaces', 'insensitive');
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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 += content;
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if (node.raws.value) {
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node.raws.value += content;
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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[_tokenize.FIELDS.START_POS]
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});
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}
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var _unescapeValue = (0, _attribute.unescapeValue)(content),
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unescaped = _unescapeValue.unescaped,
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quoteMark = _unescapeValue.quoteMark;
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node.value = unescaped;
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node.quoteMark = quoteMark;
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lastAdded = 'value';
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(0, _util.ensureObject)(node, 'raws');
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node.raws.value = content;
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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[_tokenize.FIELDS.START_POS], 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[_tokenize.FIELDS.START_POS] });
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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[_tokenize.FIELDS.TYPE] === tokens.space || lastAdded === 'insensitive') {
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var lastComment = (0, _util.getProp)(node, 'spaces', lastAdded, 'after') || '';
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var rawLastComment = (0, _util.getProp)(node, 'raws', 'spaces', lastAdded, 'after') || lastComment;
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(0, _util.ensureObject)(node, 'raws', 'spaces', lastAdded);
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node.raws.spaces[lastAdded].after = rawLastComment + content;
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} else {
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var lastValue = node[lastAdded] || '';
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var rawLastValue = (0, _util.getProp)(node, 'raws', lastAdded) || lastValue;
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(0, _util.ensureObject)(node, 'raws');
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node.raws[lastAdded] = rawLastValue + 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[_tokenize.FIELDS.START_POS] });
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}
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pos++;
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}
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unescapeProp(node, "attribute");
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unescapeProp(node, "namespace");
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this.newNode(new _attribute2.default(node));
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this.position++;
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};
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/**
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* return a node containing meaningless garbage up to (but not including) the specified token position.
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* if the token position is negative, all remaining tokens are consumed.
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*
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* This returns an array containing a single string node if all whitespace,
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* otherwise an array of comment nodes with space before and after.
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*
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* These tokens are not added to the current selector, the caller can add them or use them to amend
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* a previous node's space metadata.
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*
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* In lossy mode, this returns only comments.
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*/
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Parser.prototype.parseWhitespaceEquivalentTokens = function parseWhitespaceEquivalentTokens(stopPosition) {
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if (stopPosition < 0) {
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|
stopPosition = this.tokens.length;
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}
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|
var startPosition = this.position;
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var nodes = [];
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var space = "";
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var lastComment = undefined;
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do {
|
|
if (WHITESPACE_TOKENS[this.currToken[_tokenize.FIELDS.TYPE]]) {
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if (!this.options.lossy) {
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space += this.content();
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}
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} else if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.comment) {
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var spaces = {};
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if (space) {
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spaces.before = space;
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space = "";
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}
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lastComment = new _comment2.default({
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value: this.content(),
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source: getTokenSource(this.currToken),
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sourceIndex: this.currToken[_tokenize.FIELDS.START_POS],
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spaces: spaces
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});
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nodes.push(lastComment);
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}
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} while (++this.position < stopPosition);
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|
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if (space) {
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if (lastComment) {
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lastComment.spaces.after = space;
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} else if (!this.options.lossy) {
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var firstToken = this.tokens[startPosition];
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var lastToken = this.tokens[this.position - 1];
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nodes.push(new _string2.default({
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value: '',
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source: getSource(firstToken[_tokenize.FIELDS.START_LINE], firstToken[_tokenize.FIELDS.START_COL], lastToken[_tokenize.FIELDS.END_LINE], lastToken[_tokenize.FIELDS.END_COL]),
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sourceIndex: firstToken[_tokenize.FIELDS.START_POS],
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spaces: { before: space, after: '' }
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}));
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}
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}
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return nodes;
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};
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|
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/**
|
|
*
|
|
* @param {*} nodes
|
|
*/
|
|
|
|
|
|
Parser.prototype.convertWhitespaceNodesToSpace = function convertWhitespaceNodesToSpace(nodes) {
|
|
var _this2 = this;
|
|
|
|
var requiredSpace = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
|
|
|
|
var space = "";
|
|
var rawSpace = "";
|
|
nodes.forEach(function (n) {
|
|
var spaceBefore = _this2.lossySpace(n.spaces.before, requiredSpace);
|
|
var rawSpaceBefore = _this2.lossySpace(n.rawSpaceBefore, requiredSpace);
|
|
space += spaceBefore + _this2.lossySpace(n.spaces.after, requiredSpace && spaceBefore.length === 0);
|
|
rawSpace += spaceBefore + n.value + _this2.lossySpace(n.rawSpaceAfter, requiredSpace && rawSpaceBefore.length === 0);
|
|
});
|
|
if (rawSpace === space) {
|
|
rawSpace = undefined;
|
|
}
|
|
var result = { space: space, rawSpace: rawSpace };
|
|
return result;
|
|
};
|
|
|
|
Parser.prototype.isNamedCombinator = function isNamedCombinator() {
|
|
var position = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.position;
|
|
|
|
return this.tokens[position + 0] && this.tokens[position + 0][_tokenize.FIELDS.TYPE] === tokens.slash && this.tokens[position + 1] && this.tokens[position + 1][_tokenize.FIELDS.TYPE] === tokens.word && this.tokens[position + 2] && this.tokens[position + 2][_tokenize.FIELDS.TYPE] === tokens.slash;
|
|
};
|
|
|
|
Parser.prototype.namedCombinator = function namedCombinator() {
|
|
if (this.isNamedCombinator()) {
|
|
var nameRaw = this.content(this.tokens[this.position + 1]);
|
|
var name = (0, _util.unesc)(nameRaw).toLowerCase();
|
|
var raws = {};
|
|
if (name !== nameRaw) {
|
|
raws.value = '/' + nameRaw + '/';
|
|
}
|
|
var node = new _combinator2.default({
|
|
value: '/' + name + '/',
|
|
source: getSource(this.currToken[_tokenize.FIELDS.START_LINE], this.currToken[_tokenize.FIELDS.START_COL], this.tokens[this.position + 2][_tokenize.FIELDS.END_LINE], this.tokens[this.position + 2][_tokenize.FIELDS.END_COL]),
|
|
sourceIndex: this.currToken[_tokenize.FIELDS.START_POS],
|
|
raws: raws
|
|
});
|
|
this.position = this.position + 3;
|
|
return node;
|
|
} else {
|
|
this.unexpected();
|
|
}
|
|
};
|
|
|
|
Parser.prototype.combinator = function combinator() {
|
|
var _this3 = this;
|
|
|
|
if (this.content() === '|') {
|
|
return this.namespace();
|
|
}
|
|
// We need to decide between a space that's a descendant combinator and meaningless whitespace at the end of a selector.
|
|
var nextSigTokenPos = this.locateNextMeaningfulToken(this.position);
|
|
|
|
if (nextSigTokenPos < 0 || this.tokens[nextSigTokenPos][_tokenize.FIELDS.TYPE] === tokens.comma) {
|
|
var nodes = this.parseWhitespaceEquivalentTokens(nextSigTokenPos);
|
|
if (nodes.length > 0) {
|
|
var last = this.current.last;
|
|
if (last) {
|
|
var _convertWhitespaceNod = this.convertWhitespaceNodesToSpace(nodes),
|
|
space = _convertWhitespaceNod.space,
|
|
rawSpace = _convertWhitespaceNod.rawSpace;
|
|
|
|
if (rawSpace !== undefined) {
|
|
last.rawSpaceAfter += rawSpace;
|
|
}
|
|
last.spaces.after += space;
|
|
} else {
|
|
nodes.forEach(function (n) {
|
|
return _this3.newNode(n);
|
|
});
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
var firstToken = this.currToken;
|
|
var spaceOrDescendantSelectorNodes = undefined;
|
|
if (nextSigTokenPos > this.position) {
|
|
spaceOrDescendantSelectorNodes = this.parseWhitespaceEquivalentTokens(nextSigTokenPos);
|
|
}
|
|
|
|
var node = void 0;
|
|
if (this.isNamedCombinator()) {
|
|
node = this.namedCombinator();
|
|
} else if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.combinator) {
|
|
node = new _combinator2.default({
|
|
value: this.content(),
|
|
source: getTokenSource(this.currToken),
|
|
sourceIndex: this.currToken[_tokenize.FIELDS.START_POS]
|
|
});
|
|
this.position++;
|
|
} else if (WHITESPACE_TOKENS[this.currToken[_tokenize.FIELDS.TYPE]]) {
|
|
// pass
|
|
} else if (!spaceOrDescendantSelectorNodes) {
|
|
this.unexpected();
|
|
}
|
|
|
|
if (node) {
|
|
if (spaceOrDescendantSelectorNodes) {
|
|
var _convertWhitespaceNod2 = this.convertWhitespaceNodesToSpace(spaceOrDescendantSelectorNodes),
|
|
_space = _convertWhitespaceNod2.space,
|
|
_rawSpace = _convertWhitespaceNod2.rawSpace;
|
|
|
|
node.spaces.before = _space;
|
|
node.rawSpaceBefore = _rawSpace;
|
|
}
|
|
} else {
|
|
// descendant combinator
|
|
var _convertWhitespaceNod3 = this.convertWhitespaceNodesToSpace(spaceOrDescendantSelectorNodes, true),
|
|
_space2 = _convertWhitespaceNod3.space,
|
|
_rawSpace2 = _convertWhitespaceNod3.rawSpace;
|
|
|
|
if (!_rawSpace2) {
|
|
_rawSpace2 = _space2;
|
|
}
|
|
var spaces = {};
|
|
var raws = { spaces: {} };
|
|
if (_space2.endsWith(' ') && _rawSpace2.endsWith(' ')) {
|
|
spaces.before = _space2.slice(0, _space2.length - 1);
|
|
raws.spaces.before = _rawSpace2.slice(0, _rawSpace2.length - 1);
|
|
} else if (_space2.startsWith(' ') && _rawSpace2.startsWith(' ')) {
|
|
spaces.after = _space2.slice(1);
|
|
raws.spaces.after = _rawSpace2.slice(1);
|
|
} else {
|
|
raws.value = _rawSpace2;
|
|
}
|
|
node = new _combinator2.default({
|
|
value: ' ',
|
|
source: getTokenSourceSpan(firstToken, this.tokens[this.position - 1]),
|
|
sourceIndex: firstToken[_tokenize.FIELDS.START_POS],
|
|
spaces: spaces,
|
|
raws: raws
|
|
});
|
|
}
|
|
|
|
if (this.currToken && this.currToken[_tokenize.FIELDS.TYPE] === tokens.space) {
|
|
node.spaces.after = this.optionalSpace(this.content());
|
|
this.position++;
|
|
}
|
|
|
|
return this.newNode(node);
|
|
};
|
|
|
|
Parser.prototype.comma = function comma() {
|
|
if (this.position === this.tokens.length - 1) {
|
|
this.root.trailingComma = true;
|
|
this.position++;
|
|
return;
|
|
}
|
|
this.current._inferEndPosition();
|
|
var selector = new _selector2.default({ source: { start: tokenStart(this.tokens[this.position + 1]) } });
|
|
this.current.parent.append(selector);
|
|
this.current = selector;
|
|
this.position++;
|
|
};
|
|
|
|
Parser.prototype.comment = function comment() {
|
|
var current = this.currToken;
|
|
this.newNode(new _comment2.default({
|
|
value: this.content(),
|
|
source: getTokenSource(current),
|
|
sourceIndex: current[_tokenize.FIELDS.START_POS]
|
|
}));
|
|
this.position++;
|
|
};
|
|
|
|
Parser.prototype.error = function error(message, opts) {
|
|
throw this.root.error(message, opts);
|
|
};
|
|
|
|
Parser.prototype.missingBackslash = function missingBackslash() {
|
|
return this.error('Expected a backslash preceding the semicolon.', {
|
|
index: this.currToken[_tokenize.FIELDS.START_POS]
|
|
});
|
|
};
|
|
|
|
Parser.prototype.missingParenthesis = function missingParenthesis() {
|
|
return this.expected('opening parenthesis', this.currToken[_tokenize.FIELDS.START_POS]);
|
|
};
|
|
|
|
Parser.prototype.missingSquareBracket = function missingSquareBracket() {
|
|
return this.expected('opening square bracket', this.currToken[_tokenize.FIELDS.START_POS]);
|
|
};
|
|
|
|
Parser.prototype.unexpected = function unexpected() {
|
|
return this.error('Unexpected \'' + this.content() + '\'. Escaping special characters with \\ may help.', this.currToken[_tokenize.FIELDS.START_POS]);
|
|
};
|
|
|
|
Parser.prototype.namespace = function namespace() {
|
|
var before = this.prevToken && this.content(this.prevToken) || true;
|
|
if (this.nextToken[_tokenize.FIELDS.TYPE] === tokens.word) {
|
|
this.position++;
|
|
return this.word(before);
|
|
} else if (this.nextToken[_tokenize.FIELDS.TYPE] === tokens.asterisk) {
|
|
this.position++;
|
|
return this.universal(before);
|
|
}
|
|
};
|
|
|
|
Parser.prototype.nesting = function nesting() {
|
|
if (this.nextToken) {
|
|
var nextContent = this.content(this.nextToken);
|
|
if (nextContent === "|") {
|
|
this.position++;
|
|
return;
|
|
}
|
|
}
|
|
var current = this.currToken;
|
|
this.newNode(new _nesting2.default({
|
|
value: this.content(),
|
|
source: getTokenSource(current),
|
|
sourceIndex: current[_tokenize.FIELDS.START_POS]
|
|
}));
|
|
this.position++;
|
|
};
|
|
|
|
Parser.prototype.parentheses = function parentheses() {
|
|
var last = this.current.last;
|
|
var unbalanced = 1;
|
|
this.position++;
|
|
if (last && last.type === types.PSEUDO) {
|
|
var selector = new _selector2.default({ source: { start: tokenStart(this.tokens[this.position - 1]) } });
|
|
var cache = this.current;
|
|
last.append(selector);
|
|
this.current = selector;
|
|
while (this.position < this.tokens.length && unbalanced) {
|
|
if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.openParenthesis) {
|
|
unbalanced++;
|
|
}
|
|
if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.closeParenthesis) {
|
|
unbalanced--;
|
|
}
|
|
if (unbalanced) {
|
|
this.parse();
|
|
} else {
|
|
this.current.source.end = tokenEnd(this.currToken);
|
|
this.current.parent.source.end = tokenEnd(this.currToken);
|
|
this.position++;
|
|
}
|
|
}
|
|
this.current = cache;
|
|
} else {
|
|
// I think this case should be an error. It's used to implement a basic parse of media queries
|
|
// but I don't think it's a good idea.
|
|
var parenStart = this.currToken;
|
|
var parenValue = "(";
|
|
var parenEnd = void 0;
|
|
while (this.position < this.tokens.length && unbalanced) {
|
|
if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.openParenthesis) {
|
|
unbalanced++;
|
|
}
|
|
if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.closeParenthesis) {
|
|
unbalanced--;
|
|
}
|
|
parenEnd = this.currToken;
|
|
parenValue += this.parseParenthesisToken(this.currToken);
|
|
this.position++;
|
|
}
|
|
if (last) {
|
|
last.appendToPropertyAndEscape("value", parenValue, parenValue);
|
|
} else {
|
|
this.newNode(new _string2.default({
|
|
value: parenValue,
|
|
source: getSource(parenStart[_tokenize.FIELDS.START_LINE], parenStart[_tokenize.FIELDS.START_COL], parenEnd[_tokenize.FIELDS.END_LINE], parenEnd[_tokenize.FIELDS.END_COL]),
|
|
sourceIndex: parenStart[_tokenize.FIELDS.START_POS]
|
|
}));
|
|
}
|
|
}
|
|
if (unbalanced) {
|
|
return this.expected('closing parenthesis', this.currToken[_tokenize.FIELDS.START_POS]);
|
|
}
|
|
};
|
|
|
|
Parser.prototype.pseudo = function pseudo() {
|
|
var _this4 = this;
|
|
|
|
var pseudoStr = '';
|
|
var startingToken = this.currToken;
|
|
while (this.currToken && this.currToken[_tokenize.FIELDS.TYPE] === tokens.colon) {
|
|
pseudoStr += this.content();
|
|
this.position++;
|
|
}
|
|
if (!this.currToken) {
|
|
return this.expected(['pseudo-class', 'pseudo-element'], this.position - 1);
|
|
}
|
|
if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.word) {
|
|
this.splitWord(false, function (first, length) {
|
|
pseudoStr += first;
|
|
_this4.newNode(new _pseudo2.default({
|
|
value: pseudoStr,
|
|
source: getTokenSourceSpan(startingToken, _this4.currToken),
|
|
sourceIndex: startingToken[_tokenize.FIELDS.START_POS]
|
|
}));
|
|
if (length > 1 && _this4.nextToken && _this4.nextToken[_tokenize.FIELDS.TYPE] === tokens.openParenthesis) {
|
|
_this4.error('Misplaced parenthesis.', {
|
|
index: _this4.nextToken[_tokenize.FIELDS.START_POS]
|
|
});
|
|
}
|
|
});
|
|
} else {
|
|
return this.expected(['pseudo-class', 'pseudo-element'], this.currToken[_tokenize.FIELDS.START_POS]);
|
|
}
|
|
};
|
|
|
|
Parser.prototype.space = function space() {
|
|
var content = this.content();
|
|
// Handle space before and after the selector
|
|
if (this.position === 0 || this.prevToken[_tokenize.FIELDS.TYPE] === tokens.comma || this.prevToken[_tokenize.FIELDS.TYPE] === tokens.openParenthesis) {
|
|
this.spaces = this.optionalSpace(content);
|
|
this.position++;
|
|
} else if (this.position === this.tokens.length - 1 || this.nextToken[_tokenize.FIELDS.TYPE] === tokens.comma || this.nextToken[_tokenize.FIELDS.TYPE] === tokens.closeParenthesis) {
|
|
this.current.last.spaces.after = this.optionalSpace(content);
|
|
this.position++;
|
|
} else {
|
|
this.combinator();
|
|
}
|
|
};
|
|
|
|
Parser.prototype.string = function string() {
|
|
var current = this.currToken;
|
|
this.newNode(new _string2.default({
|
|
value: this.content(),
|
|
source: getTokenSource(current),
|
|
sourceIndex: current[_tokenize.FIELDS.START_POS]
|
|
}));
|
|
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: getTokenSource(current),
|
|
sourceIndex: current[_tokenize.FIELDS.START_POS]
|
|
}), namespace);
|
|
this.position++;
|
|
};
|
|
|
|
Parser.prototype.splitWord = function splitWord(namespace, firstCallback) {
|
|
var _this5 = this;
|
|
|
|
var nextToken = this.nextToken;
|
|
var word = this.content();
|
|
while (nextToken && ~[tokens.dollar, tokens.caret, tokens.equals, tokens.word].indexOf(nextToken[_tokenize.FIELDS.TYPE])) {
|
|
this.position++;
|
|
var current = this.content();
|
|
word += current;
|
|
if (current.lastIndexOf('\\') === current.length - 1) {
|
|
var next = this.nextToken;
|
|
if (next && next[_tokenize.FIELDS.TYPE] === tokens.space) {
|
|
word += this.requiredSpace(this.content(next));
|
|
this.position++;
|
|
}
|
|
}
|
|
nextToken = this.nextToken;
|
|
}
|
|
var hasClass = (0, _indexesOf2.default)(word, '.').filter(function (i) {
|
|
return word[i - 1] !== '\\';
|
|
});
|
|
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(_this5, value, indices.length);
|
|
}
|
|
var node = void 0;
|
|
var current = _this5.currToken;
|
|
var sourceIndex = current[_tokenize.FIELDS.START_POS] + indices[i];
|
|
var source = getSource(current[1], current[2] + ind, current[3], current[2] + (index - 1));
|
|
if (~hasClass.indexOf(ind)) {
|
|
var classNameOpts = {
|
|
value: value.slice(1),
|
|
source: source,
|
|
sourceIndex: sourceIndex
|
|
};
|
|
node = new _className2.default(unescapeProp(classNameOpts, "value"));
|
|
} else if (~hasId.indexOf(ind)) {
|
|
var idOpts = {
|
|
value: value.slice(1),
|
|
source: source,
|
|
sourceIndex: sourceIndex
|
|
};
|
|
node = new _id2.default(unescapeProp(idOpts, "value"));
|
|
} else {
|
|
var tagOpts = {
|
|
value: value,
|
|
source: source,
|
|
sourceIndex: sourceIndex
|
|
};
|
|
unescapeProp(tagOpts, "value");
|
|
node = new _tag2.default(tagOpts);
|
|
}
|
|
_this5.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);
|
|
}
|
|
this.current._inferEndPosition();
|
|
return this.root;
|
|
};
|
|
|
|
Parser.prototype.parse = function parse(throwOnParenthesis) {
|
|
switch (this.currToken[_tokenize.FIELDS.TYPE]) {
|
|
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.slash:
|
|
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();
|
|
default:
|
|
this.unexpected();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* 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.requiredSpace = function requiredSpace(space) {
|
|
return this.options.lossy ? ' ' : space;
|
|
};
|
|
|
|
Parser.prototype.optionalSpace = function optionalSpace(space) {
|
|
return this.options.lossy ? '' : space;
|
|
};
|
|
|
|
Parser.prototype.lossySpace = function lossySpace(space, required) {
|
|
if (this.options.lossy) {
|
|
return required ? ' ' : '';
|
|
} else {
|
|
return space;
|
|
}
|
|
};
|
|
|
|
Parser.prototype.parseParenthesisToken = function parseParenthesisToken(token) {
|
|
var content = this.content(token);
|
|
if (token[_tokenize.FIELDS.TYPE] === tokens.space) {
|
|
return this.requiredSpace(content);
|
|
} else {
|
|
return content;
|
|
}
|
|
};
|
|
|
|
Parser.prototype.newNode = function newNode(node, namespace) {
|
|
if (namespace) {
|
|
if (/^ +$/.test(namespace)) {
|
|
if (!this.options.lossy) {
|
|
this.spaces = (this.spaces || '') + namespace;
|
|
}
|
|
namespace = true;
|
|
}
|
|
node.namespace = namespace;
|
|
unescapeProp(node, "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[_tokenize.FIELDS.START_POS], token[_tokenize.FIELDS.END_POS]);
|
|
};
|
|
|
|
/**
|
|
* returns the index of the next non-whitespace, non-comment token.
|
|
* returns -1 if no meaningful token is found.
|
|
*/
|
|
Parser.prototype.locateNextMeaningfulToken = function locateNextMeaningfulToken() {
|
|
var startPosition = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.position + 1;
|
|
|
|
var searchPosition = startPosition;
|
|
while (searchPosition < this.tokens.length) {
|
|
if (WHITESPACE_EQUIV_TOKENS[this.tokens[searchPosition][_tokenize.FIELDS.TYPE]]) {
|
|
searchPosition++;
|
|
continue;
|
|
} else {
|
|
return searchPosition;
|
|
}
|
|
}
|
|
return -1;
|
|
};
|
|
|
|
_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'];
|