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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 _dotProp = require('dot-prop');
var _dotProp2 = _interopRequireDefault(_dotProp);
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);
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"); } }
function getSource(startLine, startColumn, endLine, endColumn) {
return {
start: {
line: startLine,
column: startColumn
},
end: {
line: endLine,
column: endColumn
}
};
}
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.root = new _root2.default();
this.root.errorGenerator = this._errorGenerator();
var selector = new _selector2.default();
this.root.append(selector);
this.current = selector;
this.css = typeof this.rule === 'string' ? this.rule : this.rule.selector;
if (this.options.lossy) {
this.css = this.css.trim();
}
this.tokens = (0, _tokenize2.default)({
css: this.css,
error: this._errorGenerator(),
safe: this.options.safe
});
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[0] !== tokens.closeSquare) {
attr.push(this.currToken);
this.position++;
}
if (this.currToken[0] !== tokens.closeSquare) {
return this.expected('closing square bracket', this.currToken[5]);
}
var len = attr.length;
var node = {
source: getSource(startingToken[1], startingToken[2], this.currToken[3], this.currToken[4]),
sourceIndex: startingToken[5]
};
if (len === 1 && !~[tokens.word].indexOf(attr[0][0])) {
return this.expected('attribute', attr[0][5]);
}
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[0]) {
case tokens.space:
if (len === 1 || pos === 0 && this.content(next) === '|') {
return this.expected('attribute', token[5], content);
}
spaceAfterMeaningfulToken = true;
if (this.options.lossy) {
break;
}
if (lastAdded) {
var spaceProp = 'spaces.' + lastAdded + '.after';
_dotProp2.default.set(node, spaceProp, _dotProp2.default.get(node, spaceProp, '') + content);
var commentProp = 'raws.spaces.' + lastAdded + '.after';
var existingComment = _dotProp2.default.get(node, commentProp);
if (existingComment) {
_dotProp2.default.set(node, commentProp, existingComment + content);
}
} else {
spaceBefore = spaceBefore + content;
commentBefore = commentBefore + content;
}
break;
case tokens.asterisk:
if (next[0] === tokens.equals) {
node.operator = content;
lastAdded = 'operator';
} else if ((!node.namespace || lastAdded === "namespace" && !spaceAfterMeaningfulToken) && next) {
if (spaceBefore) {
_dotProp2.default.set(node, 'spaces.attribute.before', spaceBefore);
spaceBefore = '';
}
if (commentBefore) {
_dotProp2.default.set(node, 'raws.spaces.attribute.before', spaceBefore);
commentBefore = '';
}
node.namespace = (node.namespace || "") + content;
var rawValue = _dotProp2.default.get(node, "raws.namespace");
if (rawValue) {
node.raws.namespace += content;
}
lastAdded = 'namespace';
}
spaceAfterMeaningfulToken = false;
break;
case tokens.dollar:
case tokens.caret:
if (next[0] === tokens.equals) {
node.operator = content;
lastAdded = 'operator';
}
spaceAfterMeaningfulToken = false;
break;
case tokens.combinator:
if (content === '~' && next[0] === tokens.equals) {
node.operator = content;
lastAdded = 'operator';
}
if (content !== '|') {
spaceAfterMeaningfulToken = false;
break;
}
if (next[0] === 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][0] !== 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) {
_dotProp2.default.set(node, 'spaces.attribute.before', spaceBefore);
spaceBefore = '';
}
if (commentBefore) {
_dotProp2.default.set(node, 'raws.spaces.attribute.before', commentBefore);
commentBefore = '';
}
node.attribute = (node.attribute || "") + content;
var _rawValue = _dotProp2.default.get(node, "raws.attribute");
if (_rawValue) {
node.raws.attribute += content;
}
lastAdded = 'attribute';
} else if (!node.value || lastAdded === "value" && !spaceAfterMeaningfulToken) {
node.value = (node.value || "") + content;
var _rawValue2 = _dotProp2.default.get(node, "raws.value");
if (_rawValue2) {
node.raws.value += content;
}
lastAdded = 'value';
_dotProp2.default.set(node, 'raws.unquoted', _dotProp2.default.get(node, 'raws.unquoted', '') + content);
} else if (content === 'i') {
if (node.value && (node.quoted || spaceAfterMeaningfulToken)) {
node.insensitive = true;
lastAdded = 'insensitive';
if (spaceBefore) {
_dotProp2.default.set(node, 'spaces.insensitive.before', spaceBefore);
spaceBefore = '';
}
if (commentBefore) {
_dotProp2.default.set(node, 'raws.spaces.insensitive.before', commentBefore);
commentBefore = '';
}
} else if (node.value) {
lastAdded = 'value';
node.value += 'i';
if (node.raws.value) {
node.raws.value += 'i';
}
}
}
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[5]
});
}
node.value = content;
node.quoted = true;
lastAdded = 'value';
_dotProp2.default.set(node, 'raws.unquoted', content.slice(1, -1));
spaceAfterMeaningfulToken = false;
break;
case tokens.equals:
if (!node.attribute) {
return this.expected('attribute', token[5], content);
}
if (node.value) {
return this.error('Unexpected "=" found; an operator was already defined.', { index: token[5] });
}
node.operator = node.operator ? node.operator + content : content;
lastAdded = 'operator';
spaceAfterMeaningfulToken = false;
break;
case tokens.comment:
if (lastAdded) {
if (spaceAfterMeaningfulToken || next && next[0] === tokens.space) {
var lastComment = _dotProp2.default.get(node, 'raws.spaces.' + lastAdded + '.after', _dotProp2.default.get(node, 'spaces.' + lastAdded + '.after', ''));
_dotProp2.default.set(node, 'raws.spaces.' + lastAdded + '.after', lastComment + content);
} else {
var lastValue = _dotProp2.default.get(node, 'raws.' + lastAdded, _dotProp2.default.get(node, lastAdded, ''));
_dotProp2.default.set(node, 'raws.' + lastAdded, lastValue + content);
}
} else {
commentBefore = commentBefore + content;
}
break;
default:
return this.error('Unexpected "' + content + '" found.', { index: token[5] });
}
pos++;
}
this.newNode(new _attribute2.default(node));
this.position++;
};
Parser.prototype.combinator = function combinator() {
var current = this.currToken;
if (this.content() === '|') {
return this.namespace();
}
var node = new _combinator2.default({
value: '',
source: getSource(current[1], current[2], current[3], current[4]),
sourceIndex: current[5]
});
while (this.position < this.tokens.length && this.currToken && (this.currToken[0] === tokens.space || this.currToken[0] === tokens.combinator)) {
var content = this.content();
if (this.nextToken && this.nextToken[0] === tokens.combinator) {
node.spaces.before = this.parseSpace(content);
node.source = getSource(this.nextToken[1], this.nextToken[2], this.nextToken[3], this.nextToken[4]);
node.sourceIndex = this.nextToken[5];
} else if (this.prevToken && this.prevToken[0] === tokens.combinator) {
node.spaces.after = this.parseSpace(content);
} else if (this.currToken[0] === tokens.combinator) {
node.value = content;
} else if (this.currToken[0] === tokens.space) {
node.value = this.parseSpace(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;
}
var selector = new _selector2.default();
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: getSource(current[1], current[2], current[3], current[4]),
sourceIndex: current[5]
}));
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[5]
});
};
Parser.prototype.missingParenthesis = function missingParenthesis() {
return this.expected('opening parenthesis', this.currToken[5]);
};
Parser.prototype.missingSquareBracket = function missingSquareBracket() {
return this.expected('opening square bracket', this.currToken[5]);
};
Parser.prototype.namespace = function namespace() {
var before = this.prevToken && this.content(this.prevToken) || true;
if (this.nextToken[0] === tokens.word) {
this.position++;
return this.word(before);
} else if (this.nextToken[0] === tokens.asterisk) {
this.position++;
return this.universal(before);
}
};
Parser.prototype.nesting = function nesting() {
var current = this.currToken;
this.newNode(new _nesting2.default({
value: this.content(),
source: getSource(current[1], current[2], current[3], current[4]),
sourceIndex: current[5]
}));
this.position++;
};
Parser.prototype.parentheses = function parentheses() {
var last = this.current.last;
var balanced = 1;
this.position++;
if (last && last.type === types.PSEUDO) {
var selector = new _selector2.default();
var cache = this.current;
last.append(selector);
this.current = selector;
while (this.position < this.tokens.length && balanced) {
if (this.currToken[0] === tokens.openParenthesis) {
balanced++;
}
if (this.currToken[0] === tokens.closeParenthesis) {
balanced--;
}
if (balanced) {
this.parse();
} else {
selector.parent.source.end.line = this.currToken[3];
selector.parent.source.end.column = this.currToken[4];
this.position++;
}
}
this.current = cache;
} else {
last.value += '(';
while (this.position < this.tokens.length && balanced) {
if (this.currToken[0] === tokens.openParenthesis) {
balanced++;
}
if (this.currToken[0] === tokens.closeParenthesis) {
balanced--;
}
last.value += this.parseParenthesisToken(this.currToken);
this.position++;
}
}
if (balanced) {
return this.expected('closing parenthesis', this.currToken[5]);
}
};
Parser.prototype.pseudo = function pseudo() {
var _this2 = this;
var pseudoStr = '';
var startingToken = this.currToken;
while (this.currToken && this.currToken[0] === tokens.colon) {
pseudoStr += this.content();
this.position++;
}
if (!this.currToken) {
return this.expected(['pseudo-class', 'pseudo-element'], this.position - 1);
}
if (this.currToken[0] === tokens.word) {
this.splitWord(false, function (first, length) {
pseudoStr += first;
_this2.newNode(new _pseudo2.default({
value: pseudoStr,
source: getSource(startingToken[1], startingToken[2], _this2.currToken[3], _this2.currToken[4]),
sourceIndex: startingToken[5]
}));
if (length > 1 && _this2.nextToken && _this2.nextToken[0] === tokens.openParenthesis) {
_this2.error('Misplaced parenthesis.', {
index: _this2.nextToken[5]
});
}
});
} else {
return this.expected(['pseudo-class', 'pseudo-element'], this.currToken[5]);
}
};
Parser.prototype.space = function space() {
var content = this.content();
// Handle space before and after the selector
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'];