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{"version":3,"file":"index.mjs","sources":["../index.js"],"sourcesContent":["// http://www.w3.org/TR/CSS21/grammar.html\n// https://github.com/visionmedia/css-parse/pull/49#issuecomment-30088027\nvar COMMENT_REGEX = /\\/\\*[^*]*\\*+([^/*][^*]*\\*+)*\\//g;\n\nvar NEWLINE_REGEX = /\\n/g;\nvar WHITESPACE_REGEX = /^\\s*/;\n\n// declaration\nvar PROPERTY_REGEX = /^(\\*?[-#/*\\\\\\w]+(\\[[0-9a-z_-]+\\])?)\\s*/;\nvar COLON_REGEX = /^:\\s*/;\nvar VALUE_REGEX = /^((?:'(?:\\\\'|.)*?'|\"(?:\\\\\"|.)*?\"|\\([^)]*?\\)|[^};])+)/;\nvar SEMICOLON_REGEX = /^[;\\s]*/;\n\n// https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim#Polyfill\nvar TRIM_REGEX = /^\\s+|\\s+$/g;\n\n// strings\nvar NEWLINE = '\\n';\nvar FORWARD_SLASH = '/';\nvar ASTERISK = '*';\nvar EMPTY_STRING = '';\n\n// types\nvar TYPE_COMMENT = 'comment';\nvar TYPE_DECLARATION = 'declaration';\n\n/**\n * @param {String} style\n * @param {Object} [options]\n * @return {Object[]}\n * @throws {TypeError}\n * @throws {Error}\n */\nexport default function (style, options) {\n if (typeof style !== 'string') {\n throw new TypeError('First argument must be a string');\n }\n\n if (!style) return [];\n\n options = options || {};\n\n /**\n * Positional.\n */\n var lineno = 1;\n var column = 1;\n\n /**\n * Update lineno and column based on `str`.\n *\n * @param {String} str\n */\n function updatePosition(str) {\n var lines = str.match(NEWLINE_REGEX);\n if (lines) lineno += lines.length;\n var i = str.lastIndexOf(NEWLINE);\n column = ~i ? str.length - i : column + str.length;\n }\n\n /**\n * Mark position and patch `node.position`.\n *\n * @return {Function}\n */\n function position() {\n var start = { line: lineno, column: column };\n return function (node) {\n node.position = new Position(start);\n whitespace();\n return node;\n };\n }\n\n /**\n * Store position information for a node.\n *\n * @constructor\n * @property {Object} start\n * @property {Object} end\n * @property {undefined|String} source\n */\n function Position(start) {\n this.start = start;\n this.end = { line: lineno, column: column };\n this.source = options.source;\n }\n\n /**\n * Non-enumerable source string.\n */\n Position.prototype.content = style;\n\n var errorsList = [];\n\n /**\n * Error `msg`.\n *\n * @param {String} msg\n * @throws {Error}\n */\n function error(msg) {\n var err = new Error(\n options.source + ':' + lineno + ':' + column + ': ' + msg\n );\n err.reason = msg;\n err.filename = options.source;\n err.line = lineno;\n err.column = column;\n err.source = style;\n\n if (options.silent) {\n errorsList.push(err);\n } else {\n throw err;\n }\n }\n\n /**\n * Match `re` and return captures.\n *\n * @param {RegExp} re\n * @return {undefined|Array}\n */\n function match(re) {\n var m = re.exec(style);\n if (!m) return;\n var str = m[0];\n updatePosition(str);\n style = style.slice(str.length);\n return m;\n }\n\n /**\n * Parse whitespace.\n */\n function whitespace() {\n match(WHITESPACE_REGEX);\n }\n\n /**\n * Parse comments.\n *\n * @param {Object[]} [rules]\n * @return {Object[]}\n */\n function comments(rules) {\n var c;\n rules = rules || [];\n while ((c = comment())) {\n if (c !== false) {\n rules.push(c);\n }\n }\n return rules;\n }\n\n /**\n * Parse comment.\n *\n * @return {Object}\n * @throws {Error}\n */\n function comment() {\n var pos = position();\n if (FORWARD_SLASH != style.charAt(0) || ASTERISK != style.charAt(1)) return;\n\n var i = 2;\n while (\n EMPTY_STRING != style.charAt(i) &&\n (ASTERISK != style.charAt(i) || FORWARD_SLASH != style.charAt(i + 1))\n ) {\n ++i;\n }\n i += 2;\n\n if (EMPTY_STRING === style.charAt(i - 1)) {\n return error('End of comment missing');\n }\n\n var str = style.slice(2, i - 2);\n column += 2;\n updatePosition(str);\n
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