forked from zhurui/management
293 lines
19 KiB
JavaScript
293 lines
19 KiB
JavaScript
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'use strict';
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exports.__esModule = true;
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var _declaration = require('./declaration');
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var _declaration2 = _interopRequireDefault(_declaration);
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var _processor = require('./processor');
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var _processor2 = _interopRequireDefault(_processor);
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var _stringify = require('./stringify');
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var _stringify2 = _interopRequireDefault(_stringify);
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var _comment = require('./comment');
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var _comment2 = _interopRequireDefault(_comment);
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var _atRule = require('./at-rule');
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var _atRule2 = _interopRequireDefault(_atRule);
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var _vendor = require('./vendor');
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var _vendor2 = _interopRequireDefault(_vendor);
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var _parse = require('./parse');
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var _parse2 = _interopRequireDefault(_parse);
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var _list = require('./list');
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var _list2 = _interopRequireDefault(_list);
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var _rule = require('./rule');
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var _rule2 = _interopRequireDefault(_rule);
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var _root = require('./root');
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var _root2 = _interopRequireDefault(_root);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* Create a new {@link Processor} instance that will apply `plugins`
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* as CSS processors.
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*
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* @param {Array.<Plugin|pluginFunction>|Processor} plugins - PostCSS
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* plugins. See {@link Processor#use} for plugin format.
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*
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* @return {Processor} Processor to process multiple CSS
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*
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* @example
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* import postcss from 'postcss';
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*
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* postcss(plugins).process(css, { from, to }).then(result => {
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* console.log(result.css);
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* });
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*
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* @namespace postcss
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*/
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function postcss() {
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for (var _len = arguments.length, plugins = Array(_len), _key = 0; _key < _len; _key++) {
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plugins[_key] = arguments[_key];
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}
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if (plugins.length === 1 && Array.isArray(plugins[0])) {
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plugins = plugins[0];
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}
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return new _processor2.default(plugins);
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}
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/**
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* Creates a PostCSS plugin with a standard API.
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*
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* The newly-wrapped function will provide both the name and PostCSS
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* version of the plugin.
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*
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* ```js
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* const processor = postcss([replace]);
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* processor.plugins[0].postcssPlugin //=> 'postcss-replace'
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* processor.plugins[0].postcssVersion //=> '5.1.0'
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* ```
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*
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* The plugin function receives 2 arguments: {@link Root}
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* and {@link Result} instance. The function should mutate the provided
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* `Root` node. Alternatively, you can create a new `Root` node
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* and override the `result.root` property.
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*
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* ```js
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* const cleaner = postcss.plugin('postcss-cleaner', () => {
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* return (root, result) => {
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* result.root = postcss.root();
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* };
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* });
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* ```
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*
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* As a convenience, plugins also expose a `process` method so that you can use
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* them as standalone tools.
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*
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* ```js
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* cleaner.process(css, processOpts, pluginOpts);
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* // This is equivalent to:
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* postcss([ cleaner(pluginOpts) ]).process(css, processOpts);
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* ```
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*
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* Asynchronous plugins should return a `Promise` instance.
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*
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* ```js
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* postcss.plugin('postcss-import', () => {
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* return (root, result) => {
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* return new Promise( (resolve, reject) => {
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* fs.readFile('base.css', (base) => {
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* root.prepend(base);
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* resolve();
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* });
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* });
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* };
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* });
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* ```
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*
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* Add warnings using the {@link Node#warn} method.
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* Send data to other plugins using the {@link Result#messages} array.
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*
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* ```js
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* postcss.plugin('postcss-caniuse-test', () => {
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* return (root, result) => {
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* root.walkDecls(decl => {
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* if ( !caniuse.support(decl.prop) ) {
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* decl.warn(result, 'Some browsers do not support ' + decl.prop);
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* }
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* });
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* };
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* });
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* ```
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*
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* @param {string} name - PostCSS plugin name. Same as in `name`
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* property in `package.json`. It will be saved
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* in `plugin.postcssPlugin` property.
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* @param {function} initializer - will receive plugin options
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* and should return {@link pluginFunction}
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*
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* @return {Plugin} PostCSS plugin
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*/
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postcss.plugin = function plugin(name, initializer) {
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var creator = function creator() {
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var transformer = initializer.apply(undefined, arguments);
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transformer.postcssPlugin = name;
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transformer.postcssVersion = new _processor2.default().version;
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return transformer;
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};
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var cache = void 0;
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Object.defineProperty(creator, 'postcss', {
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get: function get() {
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if (!cache) cache = creator();
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return cache;
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}
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});
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creator.process = function (css, processOpts, pluginOpts) {
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return postcss([creator(pluginOpts)]).process(css, processOpts);
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};
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return creator;
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};
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/**
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* Default function to convert a node tree into a CSS string.
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*
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* @param {Node} node - start node for stringifing. Usually {@link Root}.
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* @param {builder} builder - function to concatenate CSS from node’s parts
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* or generate string and source map
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*
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* @return {void}
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*
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* @function
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*/
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postcss.stringify = _stringify2.default;
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/**
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* Parses source css and returns a new {@link Root} node,
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* which contains the source CSS nodes.
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*
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* @param {string|toString} css - string with input CSS or any object
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* with toString() method, like a Buffer
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* @param {processOptions} [opts] - options with only `from` and `map` keys
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*
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* @return {Root} PostCSS AST
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*
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* @example
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* // Simple CSS concatenation with source map support
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* const root1 = postcss.parse(css1, { from: file1 });
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* const root2 = postcss.parse(css2, { from: file2 });
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* root1.append(root2).toResult().css;
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*
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* @function
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*/
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postcss.parse = _parse2.default;
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/**
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* @member {vendor} - Contains the {@link vendor} module.
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*
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* @example
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* postcss.vendor.unprefixed('-moz-tab') //=> ['tab']
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*/
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postcss.vendor = _vendor2.default;
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/**
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* @member {list} - Contains the {@link list} module.
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*
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* @example
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* postcss.list.space('5px calc(10% + 5px)') //=> ['5px', 'calc(10% + 5px)']
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*/
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postcss.list = _list2.default;
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/**
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* Creates a new {@link Comment} node.
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*
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* @param {object} [defaults] - properties for the new node.
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*
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* @return {Comment} new Comment node
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*
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* @example
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* postcss.comment({ text: 'test' })
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*/
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postcss.comment = function (defaults) {
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return new _comment2.default(defaults);
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};
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/**
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* Creates a new {@link AtRule} node.
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*
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* @param {object} [defaults] - properties for the new node.
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*
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* @return {AtRule} new AtRule node
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*
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* @example
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* postcss.atRule({ name: 'charset' }).toString() //=> "@charset"
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*/
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postcss.atRule = function (defaults) {
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return new _atRule2.default(defaults);
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};
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/**
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* Creates a new {@link Declaration} node.
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*
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* @param {object} [defaults] - properties for the new node.
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*
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* @return {Declaration} new Declaration node
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*
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* @example
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* postcss.decl({ prop: 'color', value: 'red' }).toString() //=> "color: red"
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*/
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postcss.decl = function (defaults) {
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return new _declaration2.default(defaults);
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};
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/**
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* Creates a new {@link Rule} node.
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*
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* @param {object} [defaults] - properties for the new node.
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*
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* @return {Rule} new Rule node
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*
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* @example
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* postcss.rule({ selector: 'a' }).toString() //=> "a {\n}"
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*/
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postcss.rule = function (defaults) {
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return new _rule2.default(defaults);
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};
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/**
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* Creates a new {@link Root} node.
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*
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* @param {object} [defaults] - properties for the new node.
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*
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* @return {Root} new Root node
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*
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* @example
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* postcss.root({ after: '\n' }).toString() //=> "\n"
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*/
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postcss.root = function (defaults) {
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return new _root2.default(defaults);
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};
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exports.default = postcss;
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module.exports = exports['default'];
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