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- 'use strict';
- exports.__esModule = true;
- var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
- var _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; };
- var _WHITESPACE_TOKENS, _extends2;
- var _indexesOf = require('indexes-of');
- var _indexesOf2 = _interopRequireDefault(_indexesOf);
- var _uniq = require('uniq');
- var _uniq2 = _interopRequireDefault(_uniq);
- var _root = require('./selectors/root');
- var _root2 = _interopRequireDefault(_root);
- var _selector = require('./selectors/selector');
- var _selector2 = _interopRequireDefault(_selector);
- var _className = require('./selectors/className');
- var _className2 = _interopRequireDefault(_className);
- var _comment = require('./selectors/comment');
- var _comment2 = _interopRequireDefault(_comment);
- var _id = require('./selectors/id');
- var _id2 = _interopRequireDefault(_id);
- var _tag = require('./selectors/tag');
- var _tag2 = _interopRequireDefault(_tag);
- var _string = require('./selectors/string');
- var _string2 = _interopRequireDefault(_string);
- var _pseudo = require('./selectors/pseudo');
- var _pseudo2 = _interopRequireDefault(_pseudo);
- var _attribute = require('./selectors/attribute');
- var _attribute2 = _interopRequireDefault(_attribute);
- var _universal = require('./selectors/universal');
- var _universal2 = _interopRequireDefault(_universal);
- var _combinator = require('./selectors/combinator');
- var _combinator2 = _interopRequireDefault(_combinator);
- var _nesting = require('./selectors/nesting');
- var _nesting2 = _interopRequireDefault(_nesting);
- var _sortAscending = require('./sortAscending');
- var _sortAscending2 = _interopRequireDefault(_sortAscending);
- var _tokenize = require('./tokenize');
- var _tokenize2 = _interopRequireDefault(_tokenize);
- var _tokenTypes = require('./tokenTypes');
- var tokens = _interopRequireWildcard(_tokenTypes);
- var _types = require('./selectors/types');
- var types = _interopRequireWildcard(_types);
- var _util = require('./util');
- 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; } }
- function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
- function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
- 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);
- var WHITESPACE_EQUIV_TOKENS = _extends({}, WHITESPACE_TOKENS, (_extends2 = {}, _extends2[tokens.comment] = true, _extends2));
- function tokenStart(token) {
- return {
- line: token[_tokenize.FIELDS.START_LINE],
- column: token[_tokenize.FIELDS.START_COL]
- };
- }
- function tokenEnd(token) {
- return {
- line: token[_tokenize.FIELDS.END_LINE],
- column: token[_tokenize.FIELDS.END_COL]
- };
- }
- function getSource(startLine, startColumn, endLine, endColumn) {
- return {
- start: {
- line: startLine,
- column: startColumn
- },
- end: {
- line: endLine,
- column: endColumn
- }
- };
- }
- function getTokenSource(token) {
- return getSource(token[_tokenize.FIELDS.START_LINE], token[_tokenize.FIELDS.START_COL], token[_tokenize.FIELDS.END_LINE], token[_tokenize.FIELDS.END_COL]);
- }
- function getTokenSourceSpan(startToken, endToken) {
- if (!startToken) {
- return undefined;
- }
- return getSource(startToken[_tokenize.FIELDS.START_LINE], startToken[_tokenize.FIELDS.START_COL], endToken[_tokenize.FIELDS.END_LINE], endToken[_tokenize.FIELDS.END_COL]);
- }
- function unescapeProp(node, prop) {
- var value = node[prop];
- if (typeof value !== "string") {
- return;
- }
- if (value.indexOf("\\") !== -1) {
- (0, _util.ensureObject)(node, 'raws');
- node[prop] = (0, _util.unesc)(value);
- if (node.raws[prop] === undefined) {
- node.raws[prop] = value;
- }
- }
- return node;
- }
- var Parser = function () {
- function Parser(rule) {
- var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
- _classCallCheck(this, Parser);
- this.rule = rule;
- this.options = Object.assign({ lossy: false, safe: false }, options);
- this.position = 0;
- this.css = typeof this.rule === 'string' ? this.rule : this.rule.selector;
- this.tokens = (0, _tokenize2.default)({
- css: this.css,
- error: this._errorGenerator(),
- safe: this.options.safe
- });
- var rootSource = getTokenSourceSpan(this.tokens[0], this.tokens[this.tokens.length - 1]);
- this.root = new _root2.default({ source: rootSource });
- this.root.errorGenerator = this._errorGenerator();
- var selector = new _selector2.default({ source: { start: { line: 1, column: 1 } } });
- this.root.append(selector);
- this.current = selector;
- this.loop();
- }
- Parser.prototype._errorGenerator = function _errorGenerator() {
- var _this = this;
- return function (message, errorOptions) {
- if (typeof _this.rule === 'string') {
- return new Error(message);
- }
- return _this.rule.error(message, errorOptions);
- };
- };
- Parser.prototype.attribute = function attribute() {
- var attr = [];
- var startingToken = this.currToken;
- this.position++;
- while (this.position < this.tokens.length && this.currToken[_tokenize.FIELDS.TYPE] !== tokens.closeSquare) {
- attr.push(this.currToken);
- this.position++;
- }
- if (this.currToken[_tokenize.FIELDS.TYPE] !== tokens.closeSquare) {
- return this.expected('closing square bracket', this.currToken[_tokenize.FIELDS.START_POS]);
- }
- var len = attr.length;
- var node = {
- source: getSource(startingToken[1], startingToken[2], this.currToken[3], this.currToken[4]),
- sourceIndex: startingToken[_tokenize.FIELDS.START_POS]
- };
- if (len === 1 && !~[tokens.word].indexOf(attr[0][_tokenize.FIELDS.TYPE])) {
- return this.expected('attribute', attr[0][_tokenize.FIELDS.START_POS]);
- }
- var pos = 0;
- var spaceBefore = '';
- var commentBefore = '';
- var lastAdded = null;
- var spaceAfterMeaningfulToken = false;
- while (pos < len) {
- var token = attr[pos];
- var content = this.content(token);
- var next = attr[pos + 1];
- switch (token[_tokenize.FIELDS.TYPE]) {
- case tokens.space:
- // if (
- // len === 1 ||
- // pos === 0 && this.content(next) === '|'
- // ) {
- // return this.expected('attribute', token[TOKEN.START_POS], content);
- // }
- spaceAfterMeaningfulToken = true;
- if (this.options.lossy) {
- break;
- }
- if (lastAdded) {
- (0, _util.ensureObject)(node, 'spaces', lastAdded);
- var prevContent = node.spaces[lastAdded].after || '';
- node.spaces[lastAdded].after = prevContent + content;
- var existingComment = (0, _util.getProp)(node, 'raws', 'spaces', lastAdded, 'after') || null;
- if (existingComment) {
- node.raws.spaces[lastAdded].after = existingComment + content;
- }
- } else {
- spaceBefore = spaceBefore + content;
- commentBefore = commentBefore + content;
- }
- break;
- case tokens.asterisk:
- if (next[_tokenize.FIELDS.TYPE] === tokens.equals) {
- node.operator = content;
- lastAdded = 'operator';
- } else if ((!node.namespace || lastAdded === "namespace" && !spaceAfterMeaningfulToken) && next) {
- if (spaceBefore) {
- (0, _util.ensureObject)(node, 'spaces', 'attribute');
- node.spaces.attribute.before = spaceBefore;
- spaceBefore = '';
- }
- if (commentBefore) {
- (0, _util.ensureObject)(node, 'raws', 'spaces', 'attribute');
- node.raws.spaces.attribute.before = spaceBefore;
- commentBefore = '';
- }
- node.namespace = (node.namespace || "") + content;
- var rawValue = (0, _util.getProp)(node, 'raws', 'namespace') || null;
- if (rawValue) {
- node.raws.namespace += content;
- }
- lastAdded = 'namespace';
- }
- spaceAfterMeaningfulToken = false;
- break;
- case tokens.dollar:
- if (lastAdded === "value") {
- var oldRawValue = (0, _util.getProp)(node, 'raws', 'value');
- node.value += "$";
- if (oldRawValue) {
- node.raws.value = oldRawValue + "$";
- }
- break;
- }
- // Falls through
- case tokens.caret:
- if (next[_tokenize.FIELDS.TYPE] === tokens.equals) {
- node.operator = content;
- lastAdded = 'operator';
- }
- spaceAfterMeaningfulToken = false;
- break;
- case tokens.combinator:
- if (content === '~' && next[_tokenize.FIELDS.TYPE] === tokens.equals) {
- node.operator = content;
- lastAdded = 'operator';
- }
- if (content !== '|') {
- spaceAfterMeaningfulToken = false;
- break;
- }
- if (next[_tokenize.FIELDS.TYPE] === tokens.equals) {
- node.operator = content;
- lastAdded = 'operator';
- } else if (!node.namespace && !node.attribute) {
- node.namespace = true;
- }
- spaceAfterMeaningfulToken = false;
- break;
- case tokens.word:
- 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.
- !node.operator && !node.namespace) {
- node.namespace = content;
- lastAdded = 'namespace';
- } else if (!node.attribute || lastAdded === "attribute" && !spaceAfterMeaningfulToken) {
- if (spaceBefore) {
- (0, _util.ensureObject)(node, 'spaces', 'attribute');
- node.spaces.attribute.before = spaceBefore;
- spaceBefore = '';
- }
- if (commentBefore) {
- (0, _util.ensureObject)(node, 'raws', 'spaces', 'attribute');
- node.raws.spaces.attribute.before = commentBefore;
- commentBefore = '';
- }
- node.attribute = (node.attribute || "") + content;
- var _rawValue = (0, _util.getProp)(node, 'raws', 'attribute') || null;
- if (_rawValue) {
- node.raws.attribute += content;
- }
- lastAdded = 'attribute';
- } else if (!node.value || lastAdded === "value" && !spaceAfterMeaningfulToken) {
- var _unescaped = (0, _util.unesc)(content);
- var _oldRawValue = (0, _util.getProp)(node, 'raws', 'value') || '';
- var oldValue = node.value || '';
- node.value = oldValue + _unescaped;
- node.quoteMark = null;
- if (_unescaped !== content || _oldRawValue) {
- (0, _util.ensureObject)(node, 'raws');
- node.raws.value = (_oldRawValue || oldValue) + content;
- }
- lastAdded = 'value';
- } else {
- var insensitive = content === 'i' || content === "I";
- if (node.value && (node.quoteMark || spaceAfterMeaningfulToken)) {
- node.insensitive = insensitive;
- if (!insensitive || content === "I") {
- (0, _util.ensureObject)(node, 'raws');
- node.raws.insensitiveFlag = content;
- }
- lastAdded = 'insensitive';
- if (spaceBefore) {
- (0, _util.ensureObject)(node, 'spaces', 'insensitive');
- node.spaces.insensitive.before = spaceBefore;
- spaceBefore = '';
- }
- if (commentBefore) {
- (0, _util.ensureObject)(node, 'raws', 'spaces', 'insensitive');
- node.raws.spaces.insensitive.before = commentBefore;
- commentBefore = '';
- }
- } else if (node.value) {
- lastAdded = 'value';
- node.value += content;
- if (node.raws.value) {
- node.raws.value += content;
- }
- }
- }
- spaceAfterMeaningfulToken = false;
- break;
- case tokens.str:
- if (!node.attribute || !node.operator) {
- return this.error('Expected an attribute followed by an operator preceding the string.', {
- index: token[_tokenize.FIELDS.START_POS]
- });
- }
- var _unescapeValue = (0, _attribute.unescapeValue)(content),
- unescaped = _unescapeValue.unescaped,
- quoteMark = _unescapeValue.quoteMark;
- node.value = unescaped;
- node.quoteMark = quoteMark;
- lastAdded = 'value';
- (0, _util.ensureObject)(node, 'raws');
- node.raws.value = content;
- spaceAfterMeaningfulToken = false;
- break;
- case tokens.equals:
- if (!node.attribute) {
- return this.expected('attribute', token[_tokenize.FIELDS.START_POS], content);
- }
- if (node.value) {
- return this.error('Unexpected "=" found; an operator was already defined.', { index: token[_tokenize.FIELDS.START_POS] });
- }
- node.operator = node.operator ? node.operator + content : content;
- lastAdded = 'operator';
- spaceAfterMeaningfulToken = false;
- break;
- case tokens.comment:
- if (lastAdded) {
- if (spaceAfterMeaningfulToken || next && next[_tokenize.FIELDS.TYPE] === tokens.space || lastAdded === 'insensitive') {
- var lastComment = (0, _util.getProp)(node, 'spaces', lastAdded, 'after') || '';
- var rawLastComment = (0, _util.getProp)(node, 'raws', 'spaces', lastAdded, 'after') || lastComment;
- (0, _util.ensureObject)(node, 'raws', 'spaces', lastAdded);
- node.raws.spaces[lastAdded].after = rawLastComment + content;
- } else {
- var lastValue = node[lastAdded] || '';
- var rawLastValue = (0, _util.getProp)(node, 'raws', lastAdded) || lastValue;
- (0, _util.ensureObject)(node, 'raws');
- node.raws[lastAdded] = rawLastValue + content;
- }
- } else {
- commentBefore = commentBefore + content;
- }
- break;
- default:
- return this.error('Unexpected "' + content + '" found.', { index: token[_tokenize.FIELDS.START_POS] });
- }
- pos++;
- }
- unescapeProp(node, "attribute");
- unescapeProp(node, "namespace");
- this.newNode(new _attribute2.default(node));
- this.position++;
- };
- /**
- * return a node containing meaningless garbage up to (but not including) the specified token position.
- * if the token position is negative, all remaining tokens are consumed.
- *
- * This returns an array containing a single string node if all whitespace,
- * otherwise an array of comment nodes with space before and after.
- *
- * These tokens are not added to the current selector, the caller can add them or use them to amend
- * a previous node's space metadata.
- *
- * In lossy mode, this returns only comments.
- */
- Parser.prototype.parseWhitespaceEquivalentTokens = function parseWhitespaceEquivalentTokens(stopPosition) {
- if (stopPosition < 0) {
- stopPosition = this.tokens.length;
- }
- var startPosition = this.position;
- var nodes = [];
- var space = "";
- var lastComment = undefined;
- do {
- if (WHITESPACE_TOKENS[this.currToken[_tokenize.FIELDS.TYPE]]) {
- if (!this.options.lossy) {
- space += this.content();
- }
- } else if (this.currToken[_tokenize.FIELDS.TYPE] === tokens.comment) {
- var spaces = {};
- if (space) {
- spaces.before = space;
- space = "";
- }
- lastComment = new _comment2.default({
- value: this.content(),
- source: getTokenSource(this.currToken),
- sourceIndex: this.currToken[_tokenize.FIELDS.START_POS],
- spaces: spaces
- });
- nodes.push(lastComment);
- }
- } while (++this.position < stopPosition);
- if (space) {
- if (lastComment) {
- lastComment.spaces.after = space;
- } else if (!this.options.lossy) {
- var firstToken = this.tokens[startPosition];
- var lastToken = this.tokens[this.position - 1];
- nodes.push(new _string2.default({
- value: '',
- source: getSource(firstToken[_tokenize.FIELDS.START_LINE], firstToken[_tokenize.FIELDS.START_COL], lastToken[_tokenize.FIELDS.END_LINE], lastToken[_tokenize.FIELDS.END_COL]),
- sourceIndex: firstToken[_tokenize.FIELDS.START_POS],
- spaces: { before: space, after: '' }
- }));
- }
- }
- return nodes;
- };
- /**
- *
- * @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'];
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