0.2.0 - Mid migration

web/node_modules/postcss-custom-selectors/CHANGELOG.md

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+# Changes to PostCSS Custom Selectors
+
+### 5.1.2 (September 20, 2018)
+
+- Fixed: Do not break on an empty `importFrom` object
+
+### 5.1.1 (September 18, 2018)
+
+- Fixed: Selectors like `.foo:--h1` become `h1.foo` instead of `.fooh1`
+
+### 5.1.0 (September 12, 2018)
+
+- Added: New `exportTo` function to specify where to export custom selectors
+- Updated: `importFrom` option to support passing it a function
+
+### 5.0.0 (September 7, 2018)
+
+- Added: New `preserve` option to preserve custom selectors and rules using them
+- Added: New `importFrom` option to specify where to import custom selectors
+- Added: Support for PostCSS v7
+- Added: Support for Node v6+
+
+### 4.0.1 (May 15, 2017)
+
+- Fixed: incorrect export
+
+### 4.0.0 (May 12, 2017)
+
+- Added: compatibility with postcss v6.x
+
+### 3.0.0 (August 25, 2015)
+
+- Removed: compatibility with postcss v4.x
+- Added: compatibility with postcss v5.x
+
+### 2.3.0 (July 14, 2015)
+
+* Fixed: Nested/mixed selectors now works correctly
+([#19](https://github.com/postcss/postcss-custom-selectors/issues/19))
+* Added: `transformMatches` option to limit transformation to :matches()
+replacements.
+
+### 2.2.0 (June 30, 2015)
+
+* Fixed: No more useless warnings for undefined non custom selectors
+([#22](https://github.com/postcss/postcss-custom-selectors/issues/22))
+* Changed: warnings now use PostCSS message API
+
+### 2.1.1 (June 30, 2015)
+
+* Fixed: the lineBreak option keeping the selectors indent
+([#18](https://github.com/postcss/postcss-custom-selectors/issues/18))
+* Fixed: the tip of an undefined selector
+([#20](https://github.com/postcss/postcss-custom-selectors/issues/20))
+
+### 2.1.0 (June 4, 2015)
+
+* Changed: use PostCSS 4.1 plugin API
+([#13](https://github.com/postcss/postcss-custom-selectors/issues/13))
+
+### 2.0.1 (June 3, 2015)
+
+* Fixed: `(foo, bar)` conversion error exists in the selector
+(See also [:matches() test](test/fixtures/matches/input.css))
+
+### 2.0.0 (May 29, 2015)
+
+* Removed: no longer support `::` or `--` to defined a custom selectors,
+you must use the syntax `:--` to define it.
+([#6](https://github.com/postcss/postcss-custom-selectors/issues/6))
+* Fixed: two or more consecutive hyphens in selector don't output `undefined`
+([#14](https://github.com/postcss/postcss-custom-selectors/issues/14))
+
+
+### 1.1.1 (April 6, 2015)
+
+* Fixed: add support for multilines definition
+
+### 1.1.0 (December 6, 2014)
+
+* Added: "lineBreak" option
+
+### 1.0.0 (December 6, 2014)
+
+* First release

web/node_modules/postcss-custom-selectors/LICENSE.md

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+# The MIT License (MIT)
+
+Copyright © PostCSS
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

web/node_modules/postcss-custom-selectors/README.md

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+# PostCSS Custom Selectors [<img src="https://postcss.github.io/postcss/logo.svg" alt="PostCSS" width="90" height="90" align="right">][postcss]
+
+[![NPM Version][npm-img]][npm-url]
+[![CSS Standard Status][css-img]][css-url]
+[![Build Status][cli-img]][cli-url]
+[![Support Chat][git-img]][git-url]
+
+[PostCSS Custom Selectors] lets you use Custom Selectors in CSS, following the
+[CSS Extensions] specification.
+
+```pcss
+@custom-selector :--heading h1, h2, h3;
+
+article :--heading + p {
+  margin-top: 0;
+}
+
+/* becomes */
+
+article h1 + p, article h2 + p, article h3 + p {}
+```
+
+## Usage
+
+Add [PostCSS Custom Selectors] to your project:
+
+```bash
+npm install postcss-custom-selectors --save-dev
+```
+
+Use [PostCSS Custom Selectors] to process your CSS:
+
+```js
+const postcssCustomSelectors = require('postcss-custom-selectors');
+
+postcssCustomSelectors.process(YOUR_CSS /*, processOptions, pluginOptions */);
+```
+
+Or use it as a [PostCSS] plugin:
+
+```js
+const postcss = require('postcss');
+const postcssCustomSelectors = require('postcss-custom-selectors');
+
+postcss([
+  postcssCustomSelectors(/* pluginOptions */)
+]).process(YOUR_CSS /*, processOptions */);
+```
+
+[PostCSS Custom Selectors] runs in all Node environments, with special instructions for:
+
+| [Node](INSTALL.md#node) | [PostCSS CLI](INSTALL.md#postcss-cli) | [Webpack](INSTALL.md#webpack) | [Create React App](INSTALL.md#create-react-app) | [Gulp](INSTALL.md#gulp) | [Grunt](INSTALL.md#grunt) |
+| --- | --- | --- | --- | --- | --- |
+
+## Options
+
+### preserve
+
+The `preserve` option determines whether custom selectors and rules using
+custom selectors should be preserved in their original form.
+
+```pcss
+@custom-selector :--heading h1, h2, h3;
+
+article :--heading + p {
+  margin-top: 0;
+}
+
+/* becomes */
+
+article h1 + p, article h2 + p, article h3 + p {}
+
+article :--heading + p {}
+```
+
+### importFrom
+
+The `importFrom` option specifies sources where custom selectors can be
+imported from, which might be CSS, JS, and JSON files, functions, and directly
+passed objects.
+
+```js
+postcssCustomSelectors({
+  importFrom: 'path/to/file.css' // => @custom-selector :--heading h1, h2, h3;
+});
+```
+
+```pcss
+article :--heading + p {
+  margin-top: 0;
+}
+
+/* becomes */
+
+article h1 + p, article h2 + p, article h3 + p {}
+```
+
+Multiple sources can be passed into this option, and they will be parsed in the
+order they are received. JavaScript files, JSON files, functions, and objects
+will need to namespace custom selectors using the `customProperties` or
+`custom-properties` key.
+
+```js
+postcssCustomSelectors({
+  importFrom: [
+    'path/to/file.css',
+    'and/then/this.js',
+    'and/then/that.json',
+    {
+      customSelectors: { ':--heading': 'h1, h2, h3' }
+    },
+    () => {
+      const customProperties = { ':--heading': 'h1, h2, h3' };
+
+      return { customProperties };
+    }
+  ]
+});
+```
+
+### exportTo
+
+The `exportTo` option specifies destinations where custom selectors can be
+exported to, which might be CSS, JS, and JSON files, functions, and directly
+passed objects.
+
+```js
+postcssCustomSelectors({
+  exportTo: 'path/to/file.css' // @custom-selector :--heading h1, h2, h3;
+});
+```
+
+Multiple destinations can be passed into this option, and they will be parsed
+in the order they are received. JavaScript files, JSON files, and objects will
+need to namespace custom selectors using the `customProperties` or
+`custom-properties` key.
+
+```js
+const cachedObject = { customSelectors: {} };
+
+postcssCustomSelectors({
+  exportTo: [
+    'path/to/file.css',   // @custom-selector :--heading h1, h2, h3;
+    'and/then/this.js',   // module.exports = { customSelectors: { ':--heading': 'h1, h2, h3' } }
+    'and/then/this.mjs',  // export const customSelectors = { ':--heading': 'h1, h2, h3' } }
+    'and/then/that.json', // { "custom-selectors": { ":--heading": "h1, h2, h3" } }
+    cachedObject,
+    customProperties => {
+      customProperties    // { ':--heading': 'h1, h2, h3' }
+    }
+  ]
+});
+```
+
+[cli-img]: https://img.shields.io/travis/postcss/postcss-custom-selectors.svg
+[cli-url]: https://travis-ci.org/postcss/postcss-custom-selectors
+[css-img]: https://cssdb.org/badge/custom-selectors.svg
+[css-url]: https://cssdb.org/#custom-selectors
+[git-img]: https://img.shields.io/badge/support-chat-blue.svg
+[git-url]: https://gitter.im/postcss/postcss
+[npm-img]: https://img.shields.io/npm/v/postcss-custom-selectors.svg
+[npm-url]: https://www.npmjs.com/package/postcss-custom-selectors
+
+[CSS Extensions]: https://drafts.csswg.org/css-extensions/#custom-selectors
+[PostCSS]: https://github.com/postcss/postcss
+[PostCSS Custom Selectors]: https://github.com/postcss/postcss-custom-selectors

web/node_modules/postcss-custom-selectors/index.cjs.js

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+'use strict';
+
+function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
+
+var parser = _interopDefault(require('postcss-selector-parser'));
+var fs = _interopDefault(require('fs'));
+var path = _interopDefault(require('path'));
+var postcss = _interopDefault(require('postcss'));
+
+function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
+  try {
+    var info = gen[key](arg);
+    var value = info.value;
+  } catch (error) {
+    reject(error);
+    return;
+  }
+
+  if (info.done) {
+    resolve(value);
+  } else {
+    Promise.resolve(value).then(_next, _throw);
+  }
+}
+
+function _asyncToGenerator(fn) {
+  return function () {
+    var self = this,
+        args = arguments;
+    return new Promise(function (resolve, reject) {
+      var gen = fn.apply(self, args);
+
+      function _next(value) {
+        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
+      }
+
+      function _throw(err) {
+        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
+      }
+
+      _next(undefined);
+    });
+  };
+}
+
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+
+  return obj;
+}
+
+function _objectSpread(target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i] != null ? arguments[i] : {};
+    var ownKeys = Object.keys(source);
+
+    if (typeof Object.getOwnPropertySymbols === 'function') {
+      ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
+        return Object.getOwnPropertyDescriptor(source, sym).enumerable;
+      }));
+    }
+
+    ownKeys.forEach(function (key) {
+      _defineProperty(target, key, source[key]);
+    });
+  }
+
+  return target;
+}
+
+function _slicedToArray(arr, i) {
+  return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
+}
+
+function _arrayWithHoles(arr) {
+  if (Array.isArray(arr)) return arr;
+}
+
+function _iterableToArrayLimit(arr, i) {
+  var _arr = [];
+  var _n = true;
+  var _d = false;
+  var _e = undefined;
+
+  try {
+    for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+      _arr.push(_s.value);
+
+      if (i && _arr.length === i) break;
+    }
+  } catch (err) {
+    _d = true;
+    _e = err;
+  } finally {
+    try {
+      if (!_n && _i["return"] != null) _i["return"]();
+    } finally {
+      if (_d) throw _e;
+    }
+  }
+
+  return _arr;
+}
+
+function _nonIterableRest() {
+  throw new TypeError("Invalid attempt to destructure non-iterable instance");
+}
+
+/* Return a Selectors AST from a Selectors String
+/* ========================================================================== */
+
+var getSelectorsAstFromSelectorsString = (selectorString => {
+  let selectorAST;
+  parser(selectors => {
+    selectorAST = selectors;
+  }).processSync(selectorString);
+  return selectorAST;
+});
+
+var getCustomSelectors = ((root, opts) => {
+  // initialize custom selectors
+  const customSelectors = {}; // for each custom selector atrule that is a child of the css root
+
+  root.nodes.slice().forEach(node => {
+    if (isCustomSelector(node)) {
+      // extract the name and selectors from the params of the custom selector
+      const _node$params$match = node.params.match(customSelectorParamsRegExp),
+            _node$params$match2 = _slicedToArray(_node$params$match, 3),
+            name = _node$params$match2[1],
+            selectors = _node$params$match2[2]; // write the parsed selectors to the custom selector
+
+
+      customSelectors[name] = getSelectorsAstFromSelectorsString(selectors); // conditionally remove the custom selector atrule
+
+      if (!Object(opts).preserve) {
+        node.remove();
+      }
+    }
+  });
+  return customSelectors;
+}); // match the custom selector name
+
+const customSelectorNameRegExp = /^custom-selector$/i; // match the custom selector params
+
+const customSelectorParamsRegExp = /^(:--[A-z][\w-]*)\s+([\W\w]+)\s*$/; // whether the atrule is a custom selector
+
+const isCustomSelector = node => node.type === 'atrule' && customSelectorNameRegExp.test(node.name) && customSelectorParamsRegExp.test(node.params);
+
+// return transformed selectors, replacing custom pseudo selectors with custom selectors
+function transformSelectorList(selectorList, customSelectors) {
+  let index = selectorList.nodes.length - 1;
+
+  while (index >= 0) {
+    const transformedSelectors = transformSelector(selectorList.nodes[index], customSelectors);
+
+    if (transformedSelectors.length) {
+      selectorList.nodes.splice(index, 1, ...transformedSelectors);
+    }
+
+    --index;
+  }
+
+  return selectorList;
+} // return custom pseudo selectors replaced with custom selectors
+
+function transformSelector(selector, customSelectors) {
+  const transpiledSelectors = [];
+
+  for (const index in selector.nodes) {
+    const _selector$nodes$index = selector.nodes[index],
+          value = _selector$nodes$index.value,
+          nodes = _selector$nodes$index.nodes;
+
+    if (value in customSelectors) {
+      var _iteratorNormalCompletion = true;
+      var _didIteratorError = false;
+      var _iteratorError = undefined;
+
+      try {
+        for (var _iterator = customSelectors[value].nodes[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+          const replacementSelector = _step.value;
+          const selectorClone = selector.clone();
+          selectorClone.nodes.splice(index, 1, ...replacementSelector.clone().nodes.map(node => {
+            // use spacing from the current usage
+            node.spaces = _objectSpread({}, selector.nodes[index].spaces);
+            return node;
+          }));
+          const retranspiledSelectors = transformSelector(selectorClone, customSelectors);
+          adjustNodesBySelectorEnds(selectorClone.nodes, Number(index));
+
+          if (retranspiledSelectors.length) {
+            transpiledSelectors.push(...retranspiledSelectors);
+          } else {
+            transpiledSelectors.push(selectorClone);
+          }
+        }
+      } catch (err) {
+        _didIteratorError = true;
+        _iteratorError = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion && _iterator.return != null) {
+            _iterator.return();
+          }
+        } finally {
+          if (_didIteratorError) {
+            throw _iteratorError;
+          }
+        }
+      }
+
+      return transpiledSelectors;
+    } else if (nodes && nodes.length) {
+      transformSelectorList(selector.nodes[index], customSelectors);
+    }
+  }
+
+  return transpiledSelectors;
+} // match selectors by difficult-to-separate ends
+
+
+const withoutSelectorStartMatch = /^(tag|universal)$/;
+const withoutSelectorEndMatch = /^(class|id|pseudo|tag|universal)$/;
+
+const isWithoutSelectorStart = node => withoutSelectorStartMatch.test(Object(node).type);
+
+const isWithoutSelectorEnd = node => withoutSelectorEndMatch.test(Object(node).type); // adjust nodes by selector ends (so that .class:--h1 becomes h1.class rather than .classh1)
+
+
+const adjustNodesBySelectorEnds = (nodes, index) => {
+  if (index && isWithoutSelectorStart(nodes[index]) && isWithoutSelectorEnd(nodes[index - 1])) {
+    let safeIndex = index - 1;
+
+    while (safeIndex && isWithoutSelectorEnd(nodes[safeIndex])) {
+      --safeIndex;
+    }
+
+    if (safeIndex < index) {
+      const node = nodes.splice(index, 1)[0];
+      nodes.splice(safeIndex, 0, node);
+      nodes[safeIndex].spaces.before = nodes[safeIndex + 1].spaces.before;
+      nodes[safeIndex + 1].spaces.before = '';
+
+      if (nodes[index]) {
+        nodes[index].spaces.after = nodes[safeIndex].spaces.after;
+        nodes[safeIndex].spaces.after = '';
+      }
+    }
+  }
+};
+
+var transformRules = ((root, customSelectors, opts) => {
+  root.walkRules(customPseudoRegExp, rule => {
+    const selector = parser(selectors => {
+      transformSelectorList(selectors, customSelectors, opts);
+    }).processSync(rule.selector);
+
+    if (opts.preserve) {
+      rule.cloneBefore({
+        selector
+      });
+    } else {
+      rule.selector = selector;
+    }
+  });
+});
+const customPseudoRegExp = /:--[A-z][\w-]*/;
+
+/* Import Custom Selectors from CSS AST
+/* ========================================================================== */
+
+function importCustomSelectorsFromCSSAST(root) {
+  return getCustomSelectors(root);
+}
+/* Import Custom Selectors from CSS File
+/* ========================================================================== */
+
+
+function importCustomSelectorsFromCSSFile(_x) {
+  return _importCustomSelectorsFromCSSFile.apply(this, arguments);
+}
+/* Import Custom Selectors from Object
+/* ========================================================================== */
+
+
+function _importCustomSelectorsFromCSSFile() {
+  _importCustomSelectorsFromCSSFile = _asyncToGenerator(function* (from) {
+    const css = yield readFile(path.resolve(from));
+    const root = postcss.parse(css, {
+      from: path.resolve(from)
+    });
+    return importCustomSelectorsFromCSSAST(root);
+  });
+  return _importCustomSelectorsFromCSSFile.apply(this, arguments);
+}
+
+function importCustomSelectorsFromObject(object) {
+  const customSelectors = Object.assign({}, Object(object).customSelectors || Object(object)['custom-selectors']);
+
+  for (const key in customSelectors) {
+    customSelectors[key] = getSelectorsAstFromSelectorsString(customSelectors[key]);
+  }
+
+  return customSelectors;
+}
+/* Import Custom Selectors from JSON file
+/* ========================================================================== */
+
+
+function importCustomSelectorsFromJSONFile(_x2) {
+  return _importCustomSelectorsFromJSONFile.apply(this, arguments);
+}
+/* Import Custom Selectors from JS file
+/* ========================================================================== */
+
+
+function _importCustomSelectorsFromJSONFile() {
+  _importCustomSelectorsFromJSONFile = _asyncToGenerator(function* (from) {
+    const object = yield readJSON(path.resolve(from));
+    return importCustomSelectorsFromObject(object);
+  });
+  return _importCustomSelectorsFromJSONFile.apply(this, arguments);
+}
+
+function importCustomSelectorsFromJSFile(_x3) {
+  return _importCustomSelectorsFromJSFile.apply(this, arguments);
+}
+/* Import Custom Selectors from Sources
+/* ========================================================================== */
+
+
+function _importCustomSelectorsFromJSFile() {
+  _importCustomSelectorsFromJSFile = _asyncToGenerator(function* (from) {
+    const object = yield Promise.resolve(require(path.resolve(from)));
+    return importCustomSelectorsFromObject(object);
+  });
+  return _importCustomSelectorsFromJSFile.apply(this, arguments);
+}
+
+function importCustomSelectorsFromSources(sources) {
+  return sources.map(source => {
+    if (source instanceof Promise) {
+      return source;
+    } else if (source instanceof Function) {
+      return source();
+    } // read the source as an object
+
+
+    const opts = source === Object(source) ? source : {
+      from: String(source)
+    }; // skip objects with custom selectors
+
+    if (Object(opts).customSelectors || Object(opts)['custom-selectors']) {
+      return opts;
+    } // source pathname
+
+
+    const from = String(opts.from || ''); // type of file being read from
+
+    const type = (opts.type || path.extname(from).slice(1)).toLowerCase();
+    return {
+      type,
+      from
+    };
+  }).reduce(
+  /*#__PURE__*/
+  function () {
+    var _ref = _asyncToGenerator(function* (customSelectors, source) {
+      const _ref2 = yield source,
+            type = _ref2.type,
+            from = _ref2.from;
+
+      if (type === 'ast') {
+        return Object.assign(customSelectors, importCustomSelectorsFromCSSAST(from));
+      }
+
+      if (type === 'css') {
+        return Object.assign(customSelectors, (yield importCustomSelectorsFromCSSFile(from)));
+      }
+
+      if (type === 'js') {
+        return Object.assign(customSelectors, (yield importCustomSelectorsFromJSFile(from)));
+      }
+
+      if (type === 'json') {
+        return Object.assign(customSelectors, (yield importCustomSelectorsFromJSONFile(from)));
+      }
+
+      return Object.assign(customSelectors, importCustomSelectorsFromObject((yield source)));
+    });
+
+    return function (_x4, _x5) {
+      return _ref.apply(this, arguments);
+    };
+  }(), {});
+}
+/* Helper utilities
+/* ========================================================================== */
+
+const readFile = from => new Promise((resolve, reject) => {
+  fs.readFile(from, 'utf8', (error, result) => {
+    if (error) {
+      reject(error);
+    } else {
+      resolve(result);
+    }
+  });
+});
+
+const readJSON =
+/*#__PURE__*/
+function () {
+  var _ref3 = _asyncToGenerator(function* (from) {
+    return JSON.parse((yield readFile(from)));
+  });
+
+  return function readJSON(_x6) {
+    return _ref3.apply(this, arguments);
+  };
+}();
+
+/* Import Custom Selectors from CSS File
+/* ========================================================================== */
+
+function exportCustomSelectorsToCssFile(_x, _x2) {
+  return _exportCustomSelectorsToCssFile.apply(this, arguments);
+}
+/* Import Custom Selectors from JSON file
+/* ========================================================================== */
+
+
+function _exportCustomSelectorsToCssFile() {
+  _exportCustomSelectorsToCssFile = _asyncToGenerator(function* (to, customSelectors) {
+    const cssContent = Object.keys(customSelectors).reduce((cssLines, name) => {
+      cssLines.push(`@custom-selector ${name} ${customSelectors[name]};`);
+      return cssLines;
+    }, []).join('\n');
+    const css = `${cssContent}\n`;
+    yield writeFile(to, css);
+  });
+  return _exportCustomSelectorsToCssFile.apply(this, arguments);
+}
+
+function exportCustomSelectorsToJsonFile(_x3, _x4) {
+  return _exportCustomSelectorsToJsonFile.apply(this, arguments);
+}
+/* Import Custom Selectors from Common JS file
+/* ========================================================================== */
+
+
+function _exportCustomSelectorsToJsonFile() {
+  _exportCustomSelectorsToJsonFile = _asyncToGenerator(function* (to, customSelectors) {
+    const jsonContent = JSON.stringify({
+      'custom-selectors': customSelectors
+    }, null, '  ');
+    const json = `${jsonContent}\n`;
+    yield writeFile(to, json);
+  });
+  return _exportCustomSelectorsToJsonFile.apply(this, arguments);
+}
+
+function exportCustomSelectorsToCjsFile(_x5, _x6) {
+  return _exportCustomSelectorsToCjsFile.apply(this, arguments);
+}
+/* Import Custom Selectors from Module JS file
+/* ========================================================================== */
+
+
+function _exportCustomSelectorsToCjsFile() {
+  _exportCustomSelectorsToCjsFile = _asyncToGenerator(function* (to, customSelectors) {
+    const jsContents = Object.keys(customSelectors).reduce((jsLines, name) => {
+      jsLines.push(`\t\t'${escapeForJS(name)}': '${escapeForJS(customSelectors[name])}'`);
+      return jsLines;
+    }, []).join(',\n');
+    const js = `module.exports = {\n\tcustomSelectors: {\n${jsContents}\n\t}\n};\n`;
+    yield writeFile(to, js);
+  });
+  return _exportCustomSelectorsToCjsFile.apply(this, arguments);
+}
+
+function exportCustomSelectorsToMjsFile(_x7, _x8) {
+  return _exportCustomSelectorsToMjsFile.apply(this, arguments);
+}
+/* Export Custom Selectors to Destinations
+/* ========================================================================== */
+
+
+function _exportCustomSelectorsToMjsFile() {
+  _exportCustomSelectorsToMjsFile = _asyncToGenerator(function* (to, customSelectors) {
+    const mjsContents = Object.keys(customSelectors).reduce((mjsLines, name) => {
+      mjsLines.push(`\t'${escapeForJS(name)}': '${escapeForJS(customSelectors[name])}'`);
+      return mjsLines;
+    }, []).join(',\n');
+    const mjs = `export const customSelectors = {\n${mjsContents}\n};\n`;
+    yield writeFile(to, mjs);
+  });
+  return _exportCustomSelectorsToMjsFile.apply(this, arguments);
+}
+
+function exportCustomSelectorsToDestinations(customSelectors, destinations) {
+  return Promise.all(destinations.map(
+  /*#__PURE__*/
+  function () {
+    var _ref = _asyncToGenerator(function* (destination) {
+      if (destination instanceof Function) {
+        yield destination(defaultCustomSelectorsToJSON(customSelectors));
+      } else {
+        // read the destination as an object
+        const opts = destination === Object(destination) ? destination : {
+          to: String(destination)
+        }; // transformer for custom selectors into a JSON-compatible object
+
+        const toJSON = opts.toJSON || defaultCustomSelectorsToJSON;
+
+        if ('customSelectors' in opts) {
+          // write directly to an object as customSelectors
+          opts.customSelectors = toJSON(customSelectors);
+        } else if ('custom-selectors' in opts) {
+          // write directly to an object as custom-selectors
+          opts['custom-selectors'] = toJSON(customSelectors);
+        } else {
+          // destination pathname
+          const to = String(opts.to || ''); // type of file being written to
+
+          const type = (opts.type || path.extname(opts.to).slice(1)).toLowerCase(); // transformed custom selectors
+
+          const customSelectorsJSON = toJSON(customSelectors);
+
+          if (type === 'css') {
+            yield exportCustomSelectorsToCssFile(to, customSelectorsJSON);
+          }
+
+          if (type === 'js') {
+            yield exportCustomSelectorsToCjsFile(to, customSelectorsJSON);
+          }
+
+          if (type === 'json') {
+            yield exportCustomSelectorsToJsonFile(to, customSelectorsJSON);
+          }
+
+          if (type === 'mjs') {
+            yield exportCustomSelectorsToMjsFile(to, customSelectorsJSON);
+          }
+        }
+      }
+    });
+
+    return function (_x9) {
+      return _ref.apply(this, arguments);
+    };
+  }()));
+}
+/* Helper utilities
+/* ========================================================================== */
+
+const defaultCustomSelectorsToJSON = customSelectors => {
+  return Object.keys(customSelectors).reduce((customSelectorsJSON, key) => {
+    customSelectorsJSON[key] = String(customSelectors[key]);
+    return customSelectorsJSON;
+  }, {});
+};
+
+const writeFile = (to, text) => new Promise((resolve, reject) => {
+  fs.writeFile(to, text, error => {
+    if (error) {
+      reject(error);
+    } else {
+      resolve();
+    }
+  });
+});
+
+const escapeForJS = string => string.replace(/\\([\s\S])|(')/g, '\\$1$2').replace(/\n/g, '\\n').replace(/\r/g, '\\r');
+
+var index = postcss.plugin('postcss-custom-selectors', opts => {
+  // whether to preserve custom selectors and rules using them
+  const preserve = Boolean(Object(opts).preserve); // sources to import custom selectors from
+
+  const importFrom = [].concat(Object(opts).importFrom || []); // destinations to export custom selectors to
+
+  const exportTo = [].concat(Object(opts).exportTo || []); // promise any custom selectors are imported
+
+  const customSelectorsPromise = importCustomSelectorsFromSources(importFrom);
+  return (
+    /*#__PURE__*/
+    function () {
+      var _ref = _asyncToGenerator(function* (root) {
+        const customProperties = Object.assign((yield customSelectorsPromise), getCustomSelectors(root, {
+          preserve
+        }));
+        yield exportCustomSelectorsToDestinations(customProperties, exportTo);
+        transformRules(root, customProperties, {
+          preserve
+        });
+      });
+
+      return function (_x) {
+        return _ref.apply(this, arguments);
+      };
+    }()
+  );
+});
+
+module.exports = index;
+//# sourceMappingURL=index.cjs.js.map

web/node_modules/postcss-custom-selectors/index.es.mjs

@@ -0,0 +1,610 @@
+import parser from 'postcss-selector-parser';
+import fs from 'fs';
+import path from 'path';
+import postcss from 'postcss';
+
+function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
+  try {
+    var info = gen[key](arg);
+    var value = info.value;
+  } catch (error) {
+    reject(error);
+    return;
+  }
+
+  if (info.done) {
+    resolve(value);
+  } else {
+    Promise.resolve(value).then(_next, _throw);
+  }
+}
+
+function _asyncToGenerator(fn) {
+  return function () {
+    var self = this,
+        args = arguments;
+    return new Promise(function (resolve, reject) {
+      var gen = fn.apply(self, args);
+
+      function _next(value) {
+        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
+      }
+
+      function _throw(err) {
+        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
+      }
+
+      _next(undefined);
+    });
+  };
+}
+
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+
+  return obj;
+}
+
+function _objectSpread(target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i] != null ? arguments[i] : {};
+    var ownKeys = Object.keys(source);
+
+    if (typeof Object.getOwnPropertySymbols === 'function') {
+      ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
+        return Object.getOwnPropertyDescriptor(source, sym).enumerable;
+      }));
+    }
+
+    ownKeys.forEach(function (key) {
+      _defineProperty(target, key, source[key]);
+    });
+  }
+
+  return target;
+}
+
+function _slicedToArray(arr, i) {
+  return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
+}
+
+function _arrayWithHoles(arr) {
+  if (Array.isArray(arr)) return arr;
+}
+
+function _iterableToArrayLimit(arr, i) {
+  var _arr = [];
+  var _n = true;
+  var _d = false;
+  var _e = undefined;
+
+  try {
+    for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+      _arr.push(_s.value);
+
+      if (i && _arr.length === i) break;
+    }
+  } catch (err) {
+    _d = true;
+    _e = err;
+  } finally {
+    try {
+      if (!_n && _i["return"] != null) _i["return"]();
+    } finally {
+      if (_d) throw _e;
+    }
+  }
+
+  return _arr;
+}
+
+function _nonIterableRest() {
+  throw new TypeError("Invalid attempt to destructure non-iterable instance");
+}
+
+/* Return a Selectors AST from a Selectors String
+/* ========================================================================== */
+
+var getSelectorsAstFromSelectorsString = (selectorString => {
+  let selectorAST;
+  parser(selectors => {
+    selectorAST = selectors;
+  }).processSync(selectorString);
+  return selectorAST;
+});
+
+var getCustomSelectors = ((root, opts) => {
+  // initialize custom selectors
+  const customSelectors = {}; // for each custom selector atrule that is a child of the css root
+
+  root.nodes.slice().forEach(node => {
+    if (isCustomSelector(node)) {
+      // extract the name and selectors from the params of the custom selector
+      const _node$params$match = node.params.match(customSelectorParamsRegExp),
+            _node$params$match2 = _slicedToArray(_node$params$match, 3),
+            name = _node$params$match2[1],
+            selectors = _node$params$match2[2]; // write the parsed selectors to the custom selector
+
+
+      customSelectors[name] = getSelectorsAstFromSelectorsString(selectors); // conditionally remove the custom selector atrule
+
+      if (!Object(opts).preserve) {
+        node.remove();
+      }
+    }
+  });
+  return customSelectors;
+}); // match the custom selector name
+
+const customSelectorNameRegExp = /^custom-selector$/i; // match the custom selector params
+
+const customSelectorParamsRegExp = /^(:--[A-z][\w-]*)\s+([\W\w]+)\s*$/; // whether the atrule is a custom selector
+
+const isCustomSelector = node => node.type === 'atrule' && customSelectorNameRegExp.test(node.name) && customSelectorParamsRegExp.test(node.params);
+
+// return transformed selectors, replacing custom pseudo selectors with custom selectors
+function transformSelectorList(selectorList, customSelectors) {
+  let index = selectorList.nodes.length - 1;
+
+  while (index >= 0) {
+    const transformedSelectors = transformSelector(selectorList.nodes[index], customSelectors);
+
+    if (transformedSelectors.length) {
+      selectorList.nodes.splice(index, 1, ...transformedSelectors);
+    }
+
+    --index;
+  }
+
+  return selectorList;
+} // return custom pseudo selectors replaced with custom selectors
+
+function transformSelector(selector, customSelectors) {
+  const transpiledSelectors = [];
+
+  for (const index in selector.nodes) {
+    const _selector$nodes$index = selector.nodes[index],
+          value = _selector$nodes$index.value,
+          nodes = _selector$nodes$index.nodes;
+
+    if (value in customSelectors) {
+      var _iteratorNormalCompletion = true;
+      var _didIteratorError = false;
+      var _iteratorError = undefined;
+
+      try {
+        for (var _iterator = customSelectors[value].nodes[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+          const replacementSelector = _step.value;
+          const selectorClone = selector.clone();
+          selectorClone.nodes.splice(index, 1, ...replacementSelector.clone().nodes.map(node => {
+            // use spacing from the current usage
+            node.spaces = _objectSpread({}, selector.nodes[index].spaces);
+            return node;
+          }));
+          const retranspiledSelectors = transformSelector(selectorClone, customSelectors);
+          adjustNodesBySelectorEnds(selectorClone.nodes, Number(index));
+
+          if (retranspiledSelectors.length) {
+            transpiledSelectors.push(...retranspiledSelectors);
+          } else {
+            transpiledSelectors.push(selectorClone);
+          }
+        }
+      } catch (err) {
+        _didIteratorError = true;
+        _iteratorError = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion && _iterator.return != null) {
+            _iterator.return();
+          }
+        } finally {
+          if (_didIteratorError) {
+            throw _iteratorError;
+          }
+        }
+      }
+
+      return transpiledSelectors;
+    } else if (nodes && nodes.length) {
+      transformSelectorList(selector.nodes[index], customSelectors);
+    }
+  }
+
+  return transpiledSelectors;
+} // match selectors by difficult-to-separate ends
+
+
+const withoutSelectorStartMatch = /^(tag|universal)$/;
+const withoutSelectorEndMatch = /^(class|id|pseudo|tag|universal)$/;
+
+const isWithoutSelectorStart = node => withoutSelectorStartMatch.test(Object(node).type);
+
+const isWithoutSelectorEnd = node => withoutSelectorEndMatch.test(Object(node).type); // adjust nodes by selector ends (so that .class:--h1 becomes h1.class rather than .classh1)
+
+
+const adjustNodesBySelectorEnds = (nodes, index) => {
+  if (index && isWithoutSelectorStart(nodes[index]) && isWithoutSelectorEnd(nodes[index - 1])) {
+    let safeIndex = index - 1;
+
+    while (safeIndex && isWithoutSelectorEnd(nodes[safeIndex])) {
+      --safeIndex;
+    }
+
+    if (safeIndex < index) {
+      const node = nodes.splice(index, 1)[0];
+      nodes.splice(safeIndex, 0, node);
+      nodes[safeIndex].spaces.before = nodes[safeIndex + 1].spaces.before;
+      nodes[safeIndex + 1].spaces.before = '';
+
+      if (nodes[index]) {
+        nodes[index].spaces.after = nodes[safeIndex].spaces.after;
+        nodes[safeIndex].spaces.after = '';
+      }
+    }
+  }
+};
+
+var transformRules = ((root, customSelectors, opts) => {
+  root.walkRules(customPseudoRegExp, rule => {
+    const selector = parser(selectors => {
+      transformSelectorList(selectors, customSelectors, opts);
+    }).processSync(rule.selector);
+
+    if (opts.preserve) {
+      rule.cloneBefore({
+        selector
+      });
+    } else {
+      rule.selector = selector;
+    }
+  });
+});
+const customPseudoRegExp = /:--[A-z][\w-]*/;
+
+/* Import Custom Selectors from CSS AST
+/* ========================================================================== */
+
+function importCustomSelectorsFromCSSAST(root) {
+  return getCustomSelectors(root);
+}
+/* Import Custom Selectors from CSS File
+/* ========================================================================== */
+
+
+function importCustomSelectorsFromCSSFile(_x) {
+  return _importCustomSelectorsFromCSSFile.apply(this, arguments);
+}
+/* Import Custom Selectors from Object
+/* ========================================================================== */
+
+
+function _importCustomSelectorsFromCSSFile() {
+  _importCustomSelectorsFromCSSFile = _asyncToGenerator(function* (from) {
+    const css = yield readFile(path.resolve(from));
+    const root = postcss.parse(css, {
+      from: path.resolve(from)
+    });
+    return importCustomSelectorsFromCSSAST(root);
+  });
+  return _importCustomSelectorsFromCSSFile.apply(this, arguments);
+}
+
+function importCustomSelectorsFromObject(object) {
+  const customSelectors = Object.assign({}, Object(object).customSelectors || Object(object)['custom-selectors']);
+
+  for (const key in customSelectors) {
+    customSelectors[key] = getSelectorsAstFromSelectorsString(customSelectors[key]);
+  }
+
+  return customSelectors;
+}
+/* Import Custom Selectors from JSON file
+/* ========================================================================== */
+
+
+function importCustomSelectorsFromJSONFile(_x2) {
+  return _importCustomSelectorsFromJSONFile.apply(this, arguments);
+}
+/* Import Custom Selectors from JS file
+/* ========================================================================== */
+
+
+function _importCustomSelectorsFromJSONFile() {
+  _importCustomSelectorsFromJSONFile = _asyncToGenerator(function* (from) {
+    const object = yield readJSON(path.resolve(from));
+    return importCustomSelectorsFromObject(object);
+  });
+  return _importCustomSelectorsFromJSONFile.apply(this, arguments);
+}
+
+function importCustomSelectorsFromJSFile(_x3) {
+  return _importCustomSelectorsFromJSFile.apply(this, arguments);
+}
+/* Import Custom Selectors from Sources
+/* ========================================================================== */
+
+
+function _importCustomSelectorsFromJSFile() {
+  _importCustomSelectorsFromJSFile = _asyncToGenerator(function* (from) {
+    const object = yield import(path.resolve(from));
+    return importCustomSelectorsFromObject(object);
+  });
+  return _importCustomSelectorsFromJSFile.apply(this, arguments);
+}
+
+function importCustomSelectorsFromSources(sources) {
+  return sources.map(source => {
+    if (source instanceof Promise) {
+      return source;
+    } else if (source instanceof Function) {
+      return source();
+    } // read the source as an object
+
+
+    const opts = source === Object(source) ? source : {
+      from: String(source)
+    }; // skip objects with custom selectors
+
+    if (Object(opts).customSelectors || Object(opts)['custom-selectors']) {
+      return opts;
+    } // source pathname
+
+
+    const from = String(opts.from || ''); // type of file being read from
+
+    const type = (opts.type || path.extname(from).slice(1)).toLowerCase();
+    return {
+      type,
+      from
+    };
+  }).reduce(
+  /*#__PURE__*/
+  function () {
+    var _ref = _asyncToGenerator(function* (customSelectors, source) {
+      const _ref2 = yield source,
+            type = _ref2.type,
+            from = _ref2.from;
+
+      if (type === 'ast') {
+        return Object.assign(customSelectors, importCustomSelectorsFromCSSAST(from));
+      }
+
+      if (type === 'css') {
+        return Object.assign(customSelectors, (yield importCustomSelectorsFromCSSFile(from)));
+      }
+
+      if (type === 'js') {
+        return Object.assign(customSelectors, (yield importCustomSelectorsFromJSFile(from)));
+      }
+
+      if (type === 'json') {
+        return Object.assign(customSelectors, (yield importCustomSelectorsFromJSONFile(from)));
+      }
+
+      return Object.assign(customSelectors, importCustomSelectorsFromObject((yield source)));
+    });
+
+    return function (_x4, _x5) {
+      return _ref.apply(this, arguments);
+    };
+  }(), {});
+}
+/* Helper utilities
+/* ========================================================================== */
+
+const readFile = from => new Promise((resolve, reject) => {
+  fs.readFile(from, 'utf8', (error, result) => {
+    if (error) {
+      reject(error);
+    } else {
+      resolve(result);
+    }
+  });
+});
+
+const readJSON =
+/*#__PURE__*/
+function () {
+  var _ref3 = _asyncToGenerator(function* (from) {
+    return JSON.parse((yield readFile(from)));
+  });
+
+  return function readJSON(_x6) {
+    return _ref3.apply(this, arguments);
+  };
+}();
+
+/* Import Custom Selectors from CSS File
+/* ========================================================================== */
+
+function exportCustomSelectorsToCssFile(_x, _x2) {
+  return _exportCustomSelectorsToCssFile.apply(this, arguments);
+}
+/* Import Custom Selectors from JSON file
+/* ========================================================================== */
+
+
+function _exportCustomSelectorsToCssFile() {
+  _exportCustomSelectorsToCssFile = _asyncToGenerator(function* (to, customSelectors) {
+    const cssContent = Object.keys(customSelectors).reduce((cssLines, name) => {
+      cssLines.push(`@custom-selector ${name} ${customSelectors[name]};`);
+      return cssLines;
+    }, []).join('\n');
+    const css = `${cssContent}\n`;
+    yield writeFile(to, css);
+  });
+  return _exportCustomSelectorsToCssFile.apply(this, arguments);
+}
+
+function exportCustomSelectorsToJsonFile(_x3, _x4) {
+  return _exportCustomSelectorsToJsonFile.apply(this, arguments);
+}
+/* Import Custom Selectors from Common JS file
+/* ========================================================================== */
+
+
+function _exportCustomSelectorsToJsonFile() {
+  _exportCustomSelectorsToJsonFile = _asyncToGenerator(function* (to, customSelectors) {
+    const jsonContent = JSON.stringify({
+      'custom-selectors': customSelectors
+    }, null, '  ');
+    const json = `${jsonContent}\n`;
+    yield writeFile(to, json);
+  });
+  return _exportCustomSelectorsToJsonFile.apply(this, arguments);
+}
+
+function exportCustomSelectorsToCjsFile(_x5, _x6) {
+  return _exportCustomSelectorsToCjsFile.apply(this, arguments);
+}
+/* Import Custom Selectors from Module JS file
+/* ========================================================================== */
+
+
+function _exportCustomSelectorsToCjsFile() {
+  _exportCustomSelectorsToCjsFile = _asyncToGenerator(function* (to, customSelectors) {
+    const jsContents = Object.keys(customSelectors).reduce((jsLines, name) => {
+      jsLines.push(`\t\t'${escapeForJS(name)}': '${escapeForJS(customSelectors[name])}'`);
+      return jsLines;
+    }, []).join(',\n');
+    const js = `module.exports = {\n\tcustomSelectors: {\n${jsContents}\n\t}\n};\n`;
+    yield writeFile(to, js);
+  });
+  return _exportCustomSelectorsToCjsFile.apply(this, arguments);
+}
+
+function exportCustomSelectorsToMjsFile(_x7, _x8) {
+  return _exportCustomSelectorsToMjsFile.apply(this, arguments);
+}
+/* Export Custom Selectors to Destinations
+/* ========================================================================== */
+
+
+function _exportCustomSelectorsToMjsFile() {
+  _exportCustomSelectorsToMjsFile = _asyncToGenerator(function* (to, customSelectors) {
+    const mjsContents = Object.keys(customSelectors).reduce((mjsLines, name) => {
+      mjsLines.push(`\t'${escapeForJS(name)}': '${escapeForJS(customSelectors[name])}'`);
+      return mjsLines;
+    }, []).join(',\n');
+    const mjs = `export const customSelectors = {\n${mjsContents}\n};\n`;
+    yield writeFile(to, mjs);
+  });
+  return _exportCustomSelectorsToMjsFile.apply(this, arguments);
+}
+
+function exportCustomSelectorsToDestinations(customSelectors, destinations) {
+  return Promise.all(destinations.map(
+  /*#__PURE__*/
+  function () {
+    var _ref = _asyncToGenerator(function* (destination) {
+      if (destination instanceof Function) {
+        yield destination(defaultCustomSelectorsToJSON(customSelectors));
+      } else {
+        // read the destination as an object
+        const opts = destination === Object(destination) ? destination : {
+          to: String(destination)
+        }; // transformer for custom selectors into a JSON-compatible object
+
+        const toJSON = opts.toJSON || defaultCustomSelectorsToJSON;
+
+        if ('customSelectors' in opts) {
+          // write directly to an object as customSelectors
+          opts.customSelectors = toJSON(customSelectors);
+        } else if ('custom-selectors' in opts) {
+          // write directly to an object as custom-selectors
+          opts['custom-selectors'] = toJSON(customSelectors);
+        } else {
+          // destination pathname
+          const to = String(opts.to || ''); // type of file being written to
+
+          const type = (opts.type || path.extname(opts.to).slice(1)).toLowerCase(); // transformed custom selectors
+
+          const customSelectorsJSON = toJSON(customSelectors);
+
+          if (type === 'css') {
+            yield exportCustomSelectorsToCssFile(to, customSelectorsJSON);
+          }
+
+          if (type === 'js') {
+            yield exportCustomSelectorsToCjsFile(to, customSelectorsJSON);
+          }
+
+          if (type === 'json') {
+            yield exportCustomSelectorsToJsonFile(to, customSelectorsJSON);
+          }
+
+          if (type === 'mjs') {
+            yield exportCustomSelectorsToMjsFile(to, customSelectorsJSON);
+          }
+        }
+      }
+    });
+
+    return function (_x9) {
+      return _ref.apply(this, arguments);
+    };
+  }()));
+}
+/* Helper utilities
+/* ========================================================================== */
+
+const defaultCustomSelectorsToJSON = customSelectors => {
+  return Object.keys(customSelectors).reduce((customSelectorsJSON, key) => {
+    customSelectorsJSON[key] = String(customSelectors[key]);
+    return customSelectorsJSON;
+  }, {});
+};
+
+const writeFile = (to, text) => new Promise((resolve, reject) => {
+  fs.writeFile(to, text, error => {
+    if (error) {
+      reject(error);
+    } else {
+      resolve();
+    }
+  });
+});
+
+const escapeForJS = string => string.replace(/\\([\s\S])|(')/g, '\\$1$2').replace(/\n/g, '\\n').replace(/\r/g, '\\r');
+
+var index = postcss.plugin('postcss-custom-selectors', opts => {
+  // whether to preserve custom selectors and rules using them
+  const preserve = Boolean(Object(opts).preserve); // sources to import custom selectors from
+
+  const importFrom = [].concat(Object(opts).importFrom || []); // destinations to export custom selectors to
+
+  const exportTo = [].concat(Object(opts).exportTo || []); // promise any custom selectors are imported
+
+  const customSelectorsPromise = importCustomSelectorsFromSources(importFrom);
+  return (
+    /*#__PURE__*/
+    function () {
+      var _ref = _asyncToGenerator(function* (root) {
+        const customProperties = Object.assign((yield customSelectorsPromise), getCustomSelectors(root, {
+          preserve
+        }));
+        yield exportCustomSelectorsToDestinations(customProperties, exportTo);
+        transformRules(root, customProperties, {
+          preserve
+        });
+      });
+
+      return function (_x) {
+        return _ref.apply(this, arguments);
+      };
+    }()
+  );
+});
+
+export default index;
+//# sourceMappingURL=index.es.mjs.map

web/node_modules/postcss-custom-selectors/node_modules/.bin/cssesc

@@ -0,0 +1 @@
+../cssesc/bin/cssesc

web/node_modules/postcss-custom-selectors/node_modules/cssesc/LICENSE-MIT.txt

@@ -0,0 +1,20 @@
+Copyright Mathias Bynens <https://mathiasbynens.be/>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

web/node_modules/postcss-custom-selectors/node_modules/cssesc/README.md

@@ -0,0 +1,201 @@
+# cssesc [![Build status](https://travis-ci.org/mathiasbynens/cssesc.svg?branch=master)](https://travis-ci.org/mathiasbynens/cssesc) [![Code coverage status](https://img.shields.io/codecov/c/github/mathiasbynens/cssesc.svg)](https://codecov.io/gh/mathiasbynens/cssesc)
+
+A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.
+
+This is a JavaScript library for [escaping text for use in CSS strings or identifiers](https://mathiasbynens.be/notes/css-escapes) while generating the shortest possible valid ASCII-only output. [Here’s an online demo.](https://mothereff.in/css-escapes)
+
+[A polyfill for the CSSOM `CSS.escape()` method is available in a separate repository.](https://mths.be/cssescape) (In comparison, _cssesc_ is much more powerful.)
+
+Feel free to fork if you see possible improvements!
+
+## Installation
+
+Via [npm](https://www.npmjs.com/):
+
+```bash
+npm install cssesc
+```
+
+In a browser:
+
+```html
+<script src="cssesc.js"></script>
+```
+
+In [Node.js](https://nodejs.org/):
+
+```js
+const cssesc = require('cssesc');
+```
+
+In Ruby using [the `ruby-cssesc` wrapper gem](https://github.com/borodean/ruby-cssesc):
+
+```bash
+gem install ruby-cssesc
+```
+
+```ruby
+require 'ruby-cssesc'
+CSSEsc.escape('I ♥ Ruby', is_identifier: true)
+```
+
+In Sass using [`sassy-escape`](https://github.com/borodean/sassy-escape):
+
+```bash
+gem install sassy-escape
+```
+
+```scss
+body {
+  content: escape('I ♥ Sass', $is-identifier: true);
+}
+```
+
+## API
+
+### `cssesc(value, options)`
+
+This function takes a value and returns an escaped version of the value where any characters that are not printable ASCII symbols are escaped using the shortest possible (but valid) [escape sequences for use in CSS strings or identifiers](https://mathiasbynens.be/notes/css-escapes).
+
+```js
+cssesc('Ich ♥ Bücher');
+// → 'Ich \\2665  B\\FC cher'
+
+cssesc('foo 𝌆 bar');
+// → 'foo \\1D306  bar'
+```
+
+By default, `cssesc` returns a string that can be used as part of a CSS string. If the target is a CSS identifier rather than a CSS string, use the `isIdentifier: true` setting (see below).
+
+The optional `options` argument accepts an object with the following options:
+
+#### `isIdentifier`
+
+The default value for the `isIdentifier` option is `false`. This means that the input text will be escaped for use in a CSS string literal. If you want to use the result as a CSS identifier instead (in a selector, for example), set this option to `true`.
+
+```js
+cssesc('123a2b');
+// → '123a2b'
+
+cssesc('123a2b', {
+  'isIdentifier': true
+});
+// → '\\31 23a2b'
+```
+
+#### `quotes`
+
+The default value for the `quotes` option is `'single'`. This means that any occurences of `'` in the input text will be escaped as `\'`, so that the output can be used in a CSS string literal wrapped in single quotes.
+
+```js
+cssesc('Lorem ipsum "dolor" sit \'amet\' etc.');
+// → 'Lorem ipsum "dolor" sit \\\'amet\\\' etc.'
+// → "Lorem ipsum \"dolor\" sit \\'amet\\' etc."
+
+cssesc('Lorem ipsum "dolor" sit \'amet\' etc.', {
+  'quotes': 'single'
+});
+// → 'Lorem ipsum "dolor" sit \\\'amet\\\' etc.'
+// → "Lorem ipsum \"dolor\" sit \\'amet\\' etc."
+```
+
+If you want to use the output as part of a CSS string literal wrapped in double quotes, set the `quotes` option to `'double'`.
+
+```js
+cssesc('Lorem ipsum "dolor" sit \'amet\' etc.', {
+  'quotes': 'double'
+});
+// → 'Lorem ipsum \\"dolor\\" sit \'amet\' etc.'
+// → "Lorem ipsum \\\"dolor\\\" sit 'amet' etc."
+```
+
+#### `wrap`
+
+The `wrap` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, the output will be a valid CSS string literal wrapped in quotes. The type of quotes can be specified through the `quotes` setting.
+
+```js
+cssesc('Lorem ipsum "dolor" sit \'amet\' etc.', {
+  'quotes': 'single',
+  'wrap': true
+});
+// → '\'Lorem ipsum "dolor" sit \\\'amet\\\' etc.\''
+// → "\'Lorem ipsum \"dolor\" sit \\\'amet\\\' etc.\'"
+
+cssesc('Lorem ipsum "dolor" sit \'amet\' etc.', {
+  'quotes': 'double',
+  'wrap': true
+});
+// → '"Lorem ipsum \\"dolor\\" sit \'amet\' etc."'
+// → "\"Lorem ipsum \\\"dolor\\\" sit \'amet\' etc.\""
+```
+
+#### `escapeEverything`
+
+The `escapeEverything` option takes a boolean value (`true` or `false`), and defaults to `false` (disabled). When enabled, all the symbols in the output will be escaped, even printable ASCII symbols.
+
+```js
+cssesc('lolwat"foo\'bar', {
+  'escapeEverything': true
+});
+// → '\\6C\\6F\\6C\\77\\61\\74\\"\\66\\6F\\6F\\\'\\62\\61\\72'
+// → "\\6C\\6F\\6C\\77\\61\\74\\\"\\66\\6F\\6F\\'\\62\\61\\72"
+```
+
+#### Overriding the default options globally
+
+The global default settings can be overridden by modifying the `css.options` object. This saves you from passing in an `options` object for every call to `encode` if you want to use the non-default setting.
+
+```js
+// Read the global default setting for `escapeEverything`:
+cssesc.options.escapeEverything;
+// → `false` by default
+
+// Override the global default setting for `escapeEverything`:
+cssesc.options.escapeEverything = true;
+
+// Using the global default setting for `escapeEverything`, which is now `true`:
+cssesc('foo © bar ≠ baz 𝌆 qux');
+// → '\\66\\6F\\6F\\ \\A9\\ \\62\\61\\72\\ \\2260\\ \\62\\61\\7A\\ \\1D306\\ \\71\\75\\78'
+```
+
+### `cssesc.version`
+
+A string representing the semantic version number.
+
+### Using the `cssesc` binary
+
+To use the `cssesc` binary in your shell, simply install cssesc globally using npm:
+
+```bash
+npm install -g cssesc
+```
+
+After that you will be able to escape text for use in CSS strings or identifiers from the command line:
+
+```bash
+$ cssesc 'föo ♥ bår 𝌆 baz'
+f\F6o \2665  b\E5r \1D306  baz
+```
+
+If the output needs to be a CSS identifier rather than part of a string literal, use the `-i`/`--identifier` option:
+
+```bash
+$ cssesc --identifier 'föo ♥ bår 𝌆 baz'
+f\F6o\ \2665\ b\E5r\ \1D306\ baz
+```
+
+See `cssesc --help` for the full list of options.
+
+## Support
+
+This library supports the Node.js and browser versions mentioned in [`.babelrc`](https://github.com/mathiasbynens/cssesc/blob/master/.babelrc). For a version that supports a wider variety of legacy browsers and environments out-of-the-box, [see v0.1.0](https://github.com/mathiasbynens/cssesc/releases/tag/v0.1.0).
+
+## Author
+
+| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") |
+|---|
+| [Mathias Bynens](https://mathiasbynens.be/) |
+
+## License
+
+This library is available under the [MIT](https://mths.be/mit) license.

web/node_modules/postcss-custom-selectors/node_modules/cssesc/bin/cssesc

@@ -0,0 +1,116 @@
+#!/usr/bin/env node
+const fs = require('fs');
+const cssesc = require('../cssesc.js');
+const strings = process.argv.splice(2);
+const stdin = process.stdin;
+const options = {};
+const log = console.log;
+
+const main = function() {
+	const option = strings[0];
+
+	if (/^(?:-h|--help|undefined)$/.test(option)) {
+		log(
+			'cssesc v%s - https://mths.be/cssesc',
+			cssesc.version
+		);
+		log([
+			'\nUsage:\n',
+			'\tcssesc [string]',
+			'\tcssesc [-i | --identifier] [string]',
+			'\tcssesc [-s | --single-quotes] [string]',
+			'\tcssesc [-d | --double-quotes] [string]',
+			'\tcssesc [-w | --wrap] [string]',
+			'\tcssesc [-e | --escape-everything] [string]',
+			'\tcssesc [-v | --version]',
+			'\tcssesc [-h | --help]',
+			'\nExamples:\n',
+			'\tcssesc \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
+			'\tcssesc --identifier \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
+			'\tcssesc --escape-everything \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
+			'\tcssesc --double-quotes --wrap \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
+			'\techo \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\' | cssesc'
+		].join('\n'));
+		return process.exit(1);
+	}
+
+	if (/^(?:-v|--version)$/.test(option)) {
+		log('v%s', cssesc.version);
+		return process.exit(1);
+	}
+
+	strings.forEach(function(string) {
+		// Process options
+		if (/^(?:-i|--identifier)$/.test(string)) {
+			options.isIdentifier = true;
+			return;
+		}
+		if (/^(?:-s|--single-quotes)$/.test(string)) {
+			options.quotes = 'single';
+			return;
+		}
+		if (/^(?:-d|--double-quotes)$/.test(string)) {
+			options.quotes = 'double';
+			return;
+		}
+		if (/^(?:-w|--wrap)$/.test(string)) {
+			options.wrap = true;
+			return;
+		}
+		if (/^(?:-e|--escape-everything)$/.test(string)) {
+			options.escapeEverything = true;
+			return;
+		}
+
+		// Process string(s)
+		let result;
+		try {
+			result = cssesc(string, options);
+			log(result);
+		} catch (exception) {
+			log(exception.message + '\n');
+			log('Error: failed to escape.');
+			log('If you think this is a bug in cssesc, please report it:');
+			log('https://github.com/mathiasbynens/cssesc/issues/new');
+			log(
+				'\nStack trace using cssesc@%s:\n',
+				cssesc.version
+			);
+			log(exception.stack);
+			return process.exit(1);
+		}
+	});
+	// Return with exit status 0 outside of the `forEach` loop, in case
+	// multiple strings were passed in.
+	return process.exit(0);
+
+};
+
+if (stdin.isTTY) {
+	// handle shell arguments
+	main();
+} else {
+	let timeout;
+	// Either the script is called from within a non-TTY context, or `stdin`
+	// content is being piped in.
+	if (!process.stdout.isTTY) {
+		// The script was called from a non-TTY context. This is a rather uncommon
+		// use case we don’t actively support. However, we don’t want the script
+		// to wait forever in such cases, so…
+		timeout = setTimeout(function() {
+			// …if no piped data arrived after a whole minute, handle shell
+			// arguments instead.
+			main();
+		}, 60000);
+	}
+	let data = '';
+	stdin.on('data', function(chunk) {
+		clearTimeout(timeout);
+		data += chunk;
+	});
+	stdin.on('end', function() {
+		strings.push(data.trim());
+		main();
+	});
+	stdin.resume();
+}

web/node_modules/postcss-custom-selectors/node_modules/cssesc/cssesc.js

@@ -0,0 +1,119 @@
+/*! https://mths.be/cssesc v1.0.1 by @mathias */
+'use strict';
+
+var object = {};
+var hasOwnProperty = object.hasOwnProperty;
+var merge = function merge(options, defaults) {
+	if (!options) {
+		return defaults;
+	}
+	var result = {};
+	for (var key in defaults) {
+		// `if (defaults.hasOwnProperty(key) { … }` is not needed here, since
+		// only recognized option names are used.
+		result[key] = hasOwnProperty.call(options, key) ? options[key] : defaults[key];
+	}
+	return result;
+};
+
+var regexAnySingleEscape = /[ -,\.\/;-@\[-\^`\{-~]/;
+var regexSingleEscape = /[ -,\.\/;-@\[\]\^`\{-~]/;
+var regexAlwaysEscape = /['"\\]/;
+var regexExcessiveSpaces = /(^|\\+)?(\\[A-F0-9]{1,6})\x20(?![a-fA-F0-9\x20])/g;
+
+// https://mathiasbynens.be/notes/css-escapes#css
+var cssesc = function cssesc(string, options) {
+	options = merge(options, cssesc.options);
+	if (options.quotes != 'single' && options.quotes != 'double') {
+		options.quotes = 'single';
+	}
+	var quote = options.quotes == 'double' ? '"' : '\'';
+	var isIdentifier = options.isIdentifier;
+
+	var firstChar = string.charAt(0);
+	var output = '';
+	var counter = 0;
+	var length = string.length;
+	while (counter < length) {
+		var character = string.charAt(counter++);
+		var codePoint = character.charCodeAt();
+		var value = void 0;
+		// If it’s not a printable ASCII character…
+		if (codePoint < 0x20 || codePoint > 0x7E) {
+			if (codePoint >= 0xD800 && codePoint <= 0xDBFF && counter < length) {
+				// It’s a high surrogate, and there is a next character.
+				var extra = string.charCodeAt(counter++);
+				if ((extra & 0xFC00) == 0xDC00) {
+					// next character is low surrogate
+					codePoint = ((codePoint & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000;
+				} else {
+					// It’s an unmatched surrogate; only append this code unit, in case
+					// the next code unit is the high surrogate of a surrogate pair.
+					counter--;
+				}
+			}
+			value = '\\' + codePoint.toString(16).toUpperCase() + ' ';
+		} else {
+			if (options.escapeEverything) {
+				if (regexAnySingleEscape.test(character)) {
+					value = '\\' + character;
+				} else {
+					value = '\\' + codePoint.toString(16).toUpperCase() + ' ';
+				}
+				// Note: `:` could be escaped as `\:`, but that fails in IE < 8.
+			} else if (/[\t\n\f\r\x0B:]/.test(character)) {
+				if (!isIdentifier && character == ':') {
+					value = character;
+				} else {
+					value = '\\' + codePoint.toString(16).toUpperCase() + ' ';
+				}
+			} else if (character == '\\' || !isIdentifier && (character == '"' && quote == character || character == '\'' && quote == character) || isIdentifier && regexSingleEscape.test(character)) {
+				value = '\\' + character;
+			} else {
+				value = character;
+			}
+		}
+		output += value;
+	}
+
+	if (isIdentifier) {
+		if (/^_/.test(output)) {
+			// Prevent IE6 from ignoring the rule altogether (in case this is for an
+			// identifier used as a selector)
+			output = '\\_' + output.slice(1);
+		} else if (/^-[-\d]/.test(output)) {
+			output = '\\-' + output.slice(1);
+		} else if (/\d/.test(firstChar)) {
+			output = '\\3' + firstChar + ' ' + output.slice(1);
+		}
+	}
+
+	// Remove spaces after `\HEX` escapes that are not followed by a hex digit,
+	// since they’re redundant. Note that this is only possible if the escape
+	// sequence isn’t preceded by an odd number of backslashes.
+	output = output.replace(regexExcessiveSpaces, function ($0, $1, $2) {
+		if ($1 && $1.length % 2) {
+			// It’s not safe to remove the space, so don’t.
+			return $0;
+		}
+		// Strip the space.
+		return ($1 || '') + $2;
+	});
+
+	if (!isIdentifier && options.wrap) {
+		return quote + output + quote;
+	}
+	return output;
+};
+
+// Expose default options (so they can be overridden globally).
+cssesc.options = {
+	'escapeEverything': false,
+	'isIdentifier': false,
+	'quotes': 'single',
+	'wrap': false
+};
+
+cssesc.version = '1.0.1';
+
+module.exports = cssesc;

web/node_modules/postcss-custom-selectors/node_modules/cssesc/man/cssesc.1

@@ -0,0 +1,70 @@
+.Dd August 9, 2013
+.Dt cssesc 1
+.Sh NAME
+.Nm cssesc
+.Nd escape text for use in CSS string literals or identifiers
+.Sh SYNOPSIS
+.Nm
+.Op Fl i | -identifier Ar string
+.br
+.Op Fl s | -single-quotes Ar string
+.br
+.Op Fl d | -double-quotes Ar string
+.br
+.Op Fl w | -wrap Ar string
+.br
+.Op Fl e | -escape-everything Ar string
+.br
+.Op Fl v | -version
+.br
+.Op Fl h | -help
+.Sh DESCRIPTION
+.Nm
+escapes strings for use in CSS string literals or identifiers while generating the shortest possible valid ASCII-only output.
+.Sh OPTIONS
+.Bl -ohang -offset
+.It Sy "-s, --single-quotes"
+Escape any occurences of ' in the input string as \\', so that the output can be used in a CSS string literal wrapped in single quotes.
+.It Sy "-d, --double-quotes"
+Escape any occurences of " in the input string as \\", so that the output can be used in a CSS string literal wrapped in double quotes.
+.It Sy "-w, --wrap"
+Make sure the output is a valid CSS string literal wrapped in quotes. The type of quotes can be specified using the
+.Ar -s | --single-quotes
+or
+.Ar -d | --double-quotes
+settings.
+.It Sy "-e, --escape-everything"
+Escape all the symbols in the output, even printable ASCII symbols.
+.It Sy "-v, --version"
+Print cssesc's version.
+.It Sy "-h, --help"
+Show the help screen.
+.El
+.Sh EXIT STATUS
+The
+.Nm cssesc
+utility exits with one of the following values:
+.Pp
+.Bl -tag -width flag -compact
+.It Li 0
+.Nm
+successfully escaped the given text and printed the result.
+.It Li 1
+.Nm
+wasn't instructed to escape anything (for example, the
+.Ar --help
+flag was set); or, an error occurred.
+.El
+.Sh EXAMPLES
+.Bl -ohang -offset
+.It Sy "cssesc 'foo bar baz'"
+Print an escaped version of the given text.
+.It Sy echo\ 'foo bar baz'\ |\ cssesc
+Print an escaped version of the text that gets piped in.
+.El
+.Sh BUGS
+cssesc's bug tracker is located at <https://github.com/mathiasbynens/cssesc/issues>.
+.Sh AUTHOR
+Mathias Bynens <https://mathiasbynens.be/>
+.Sh WWW
+<https://mths.be/cssesc>

web/node_modules/postcss-custom-selectors/node_modules/cssesc/package.json

@@ -0,0 +1,51 @@
+{
+  "name": "cssesc",
+  "version": "2.0.0",
+  "description": "A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.",
+  "homepage": "https://mths.be/cssesc",
+  "engines": {
+    "node": ">=4"
+  },
+  "main": "cssesc.js",
+  "bin": "bin/cssesc",
+  "man": "man/cssesc.1",
+  "keywords": [
+    "css",
+    "escape",
+    "identifier",
+    "string",
+    "tool"
+  ],
+  "license": "MIT",
+  "author": {
+    "name": "Mathias Bynens",
+    "url": "https://mathiasbynens.be/"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mathiasbynens/cssesc.git"
+  },
+  "bugs": "https://github.com/mathiasbynens/cssesc/issues",
+  "files": [
+    "LICENSE-MIT.txt",
+    "cssesc.js",
+    "bin/",
+    "man/"
+  ],
+  "scripts": {
+    "build": "grunt template && babel cssesc.js -o cssesc.js",
+    "test": "mocha tests",
+    "cover": "istanbul cover --report html node_modules/.bin/_mocha tests -- -u exports -R spec"
+  },
+  "devDependencies": {
+    "babel-cli": "^6.26.0",
+    "babel-preset-env": "^1.6.1",
+    "codecov": "^1.0.1",
+    "grunt": "^1.0.1",
+    "grunt-template": "^1.0.0",
+    "istanbul": "^0.4.4",
+    "mocha": "^2.5.3",
+    "regenerate": "^1.2.1",
+    "requirejs": "^2.1.16"
+  }
+}

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/API.md

@@ -0,0 +1,873 @@
+# API Documentation
+
+*Please use only this documented API when working with the parser. Methods
+not documented here are subject to change at any point.*
+
+## `parser` function
+
+This is the module's main entry point.
+
+```js
+const parser = require('postcss-selector-parser');
+```
+
+### `parser([transform], [options])`
+
+Creates a new `processor` instance
+
+```js
+const processor = parser();
+```
+
+Or, with optional transform function
+
+```js
+const transform = selectors => {
+    selectors.walkUniversals(selector => {
+        selector.remove();
+    });
+};
+
+const processor = parser(transform)
+
+// Example
+const result = processor.processSync('*.class');
+// => .class
+```
+
+[See processor documentation](#processor)
+
+Arguments:
+
+* `transform (function)`: Provide a function to work with the parsed AST.
+* `options (object)`: Provide default options for all calls on the returned `Processor`.
+
+### `parser.attribute([props])`
+
+Creates a new attribute selector.
+
+```js
+parser.attribute({attribute: 'href'});
+// => [href]
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+### `parser.className([props])`
+
+Creates a new class selector.
+
+```js
+parser.className({value: 'button'});
+// => .button
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+### `parser.combinator([props])`
+
+Creates a new selector combinator.
+
+```js
+parser.combinator({value: '+'});
+// => +
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+Notes:
+* **Descendant Combinators** The value of descendant combinators created by the
+  parser always just a single space (`" "`). For descendant selectors with no
+  comments, additional space is now stored in `node.spaces.before`. Depending
+  on the location of comments, additional spaces may be stored in
+  `node.raws.spaces.before`, `node.raws.spaces.after`, or `node.raws.value`.
+* **Named Combinators** Although, nonstandard and unlikely to ever become a standard,
+  named combinators like `/deep/` and `/for/` are parsed as combinators. The
+  `node.value` is name after being unescaped and normalized as lowercase. The
+  original value for the combinator name is stored in `node.raws.value`.
+
+
+### `parser.comment([props])`
+
+Creates a new comment.
+
+```js
+parser.comment({value: '/* Affirmative, Dave. I read you. */'});
+// => /* Affirmative, Dave. I read you. */
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+### `parser.id([props])`
+
+Creates a new id selector.
+
+```js
+parser.id({value: 'search'});
+// => #search
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+### `parser.nesting([props])`
+
+Creates a new nesting selector.
+
+```js
+parser.nesting();
+// => &
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+### `parser.pseudo([props])`
+
+Creates a new pseudo selector.
+
+```js
+parser.pseudo({value: '::before'});
+// => ::before
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+### `parser.root([props])`
+
+Creates a new root node.
+
+```js
+parser.root();
+// => (empty)
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+### `parser.selector([props])`
+
+Creates a new selector node.
+
+```js
+parser.selector();
+// => (empty)
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+### `parser.string([props])`
+
+Creates a new string node.
+
+```js
+parser.string();
+// => (empty)
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+### `parser.tag([props])`
+
+Creates a new tag selector.
+
+```js
+parser.tag({value: 'button'});
+// => button
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+### `parser.universal([props])`
+
+Creates a new universal selector.
+
+```js
+parser.universal();
+// => *
+```
+
+Arguments:
+
+* `props (object)`: The new node's properties.
+
+## Node types
+
+### `node.type`
+
+A string representation of the selector type. It can be one of the following;
+`attribute`, `class`, `combinator`, `comment`, `id`, `nesting`, `pseudo`,
+`root`, `selector`, `string`, `tag`, or `universal`. Note that for convenience,
+these constants are exposed on the main `parser` as uppercased keys. So for
+example you can get `id` by querying `parser.ID`.
+
+```js
+parser.attribute({attribute: 'href'}).type;
+// => 'attribute'
+```
+
+### `node.parent`
+
+Returns the parent node.
+
+```js
+root.nodes[0].parent === root;
+```
+
+### `node.toString()`, `String(node)`, or `'' + node`
+
+Returns a string representation of the node.
+
+```js
+const id = parser.id({value: 'search'});
+console.log(String(id));
+// => #search
+```
+
+### `node.next()` & `node.prev()`
+
+Returns the next/previous child of the parent node.
+
+```js
+const next = id.next();
+if (next && next.type !== 'combinator') {
+    throw new Error('Qualified IDs are not allowed!');
+}
+```
+
+### `node.replaceWith(node)`
+
+Replace a node with another.
+
+```js
+const attr = selectors.first.first;
+const className = parser.className({value: 'test'});
+attr.replaceWith(className);
+```
+
+Arguments:
+
+* `node`: The node to substitute the original with.
+
+### `node.remove()`
+
+Removes the node from its parent node.
+
+```js
+if (node.type === 'id') {
+    node.remove();
+}
+```
+
+### `node.clone()`
+
+Returns a copy of a node, detached from any parent containers that the
+original might have had.
+
+```js
+const cloned = parser.id({value: 'search'});
+String(cloned);
+
+// => #search
+```
+
+### `node.isAtPosition(line, column)`
+
+Return a `boolean` indicating whether this node includes the character at the
+position of the given line and column. Returns `undefined` if the nodes lack
+sufficient source metadata to determine the position.
+
+Arguments:
+
+* `line`: 1-index based line number relative to the start of the selector.
+* `column`: 1-index based column number relative to the start of the selector.
+
+### `node.spaces`
+
+Extra whitespaces around the node will be moved into `node.spaces.before` and
+`node.spaces.after`. So for example, these spaces will be moved as they have
+no semantic meaning:
+
+```css
+      h1     ,     h2   {}
+```
+
+For descendent selectors, the value is always a single space.
+
+```css
+h1        h2 {}
+```
+
+Additional whitespace is found in either the `node.spaces.before` and `node.spaces.after` depending on the presence of comments or other whitespace characters. If the actual whitespace does not start or end with a single space, the node's raw value is set to the actual space(s) found in the source.
+
+### `node.source`
+
+An object describing the node's start/end, line/column source position.
+
+Within the following CSS, the `.bar` class node ...
+
+```css
+.foo,
+  .bar {}
+```
+
+... will contain the following `source` object.
+
+```js
+source: {
+    start: {
+        line: 2,
+        column: 3
+    },
+    end: {
+        line: 2,
+        column: 6
+    }
+}
+```
+
+### `node.sourceIndex`
+
+The zero-based index of the node within the original source string.
+
+Within the following CSS, the `.baz` class node will have a `sourceIndex` of `12`.
+
+```css
+.foo, .bar, .baz {}
+```
+
+## Container types
+
+The `root`, `selector`, and `pseudo` nodes have some helper methods for working
+with their children.
+
+### `container.nodes`
+
+An array of the container's children.
+
+```js
+// Input: h1 h2
+selectors.at(0).nodes.length   // => 3
+selectors.at(0).nodes[0].value // => 'h1'
+selectors.at(0).nodes[1].value // => ' '
+```
+
+### `container.first` & `container.last`
+
+The first/last child of the container.
+
+```js
+selector.first === selector.nodes[0];
+selector.last === selector.nodes[selector.nodes.length - 1];
+```
+
+### `container.at(index)`
+
+Returns the node at position `index`.
+
+```js
+selector.at(0) === selector.first;
+selector.at(0) === selector.nodes[0];
+```
+
+Arguments:
+
+* `index`: The index of the node to return.
+
+### `container.atPosition(line, column)`
+
+Returns the node at the source position `index`.
+
+```js
+selector.at(0) === selector.first;
+selector.at(0) === selector.nodes[0];
+```
+
+Arguments:
+
+* `index`: The index of the node to return.
+
+### `container.index(node)`
+
+Return the index of the node within its container.
+
+```js
+selector.index(selector.nodes[2]) // => 2
+```
+
+Arguments:
+
+* `node`: A node within the current container.
+
+### `container.length`
+
+Proxy to the length of the container's nodes.
+
+```js
+container.length === container.nodes.length
+```
+
+### `container` Array iterators
+
+The container class provides proxies to certain Array methods; these are:
+
+* `container.map === container.nodes.map`
+* `container.reduce === container.nodes.reduce`
+* `container.every === container.nodes.every`
+* `container.some === container.nodes.some`
+* `container.filter === container.nodes.filter`
+* `container.sort === container.nodes.sort`
+
+Note that these methods only work on a container's immediate children; recursive
+iteration is provided by `container.walk`.
+
+### `container.each(callback)`
+
+Iterate the container's immediate children, calling `callback` for each child.
+You may return `false` within the callback to break the iteration.
+
+```js
+let className;
+selectors.each((selector, index) => {
+    if (selector.type === 'class') {
+        className = selector.value;
+        return false;
+    }
+});
+```
+
+Note that unlike `Array#forEach()`, this iterator is safe to use whilst adding
+or removing nodes from the container.
+
+Arguments:
+
+* `callback (function)`: A function to call for each node, which receives `node`
+  and `index` arguments.
+
+### `container.walk(callback)`
+
+Like `container#each`, but will also iterate child nodes as long as they are
+`container` types.
+
+```js
+selectors.walk((selector, index) => {
+    // all nodes
+});
+```
+
+Arguments:
+
+* `callback (function)`: A function to call for each node, which receives `node`
+  and `index` arguments.
+
+This iterator is safe to use whilst mutating `container.nodes`,
+like `container#each`.
+
+### `container.walk` proxies
+
+The container class provides proxy methods for iterating over types of nodes,
+so that it is easier to write modules that target specific selectors. Those
+methods are:
+
+* `container.walkAttributes`
+* `container.walkClasses`
+* `container.walkCombinators`
+* `container.walkComments`
+* `container.walkIds`
+* `container.walkNesting`
+* `container.walkPseudos`
+* `container.walkTags`
+* `container.walkUniversals`
+
+### `container.split(callback)`
+
+This method allows you to split a group of nodes by returning `true` from
+a callback. It returns an array of arrays, where each inner array corresponds
+to the groups that you created via the callback.
+
+```js
+// (input) => h1 h2>>h3
+const list = selectors.first.split(selector => {
+    return selector.type === 'combinator';
+});
+
+// (node values) => [['h1', ' '], ['h2', '>>'], ['h3']]
+```
+
+Arguments:
+
+* `callback (function)`: A function to call for each node, which receives `node`
+  as an argument.
+
+### `container.prepend(node)` & `container.append(node)`
+
+Add a node to the start/end of the container. Note that doing so will set
+the parent property of the node to this container.
+
+```js
+const id = parser.id({value: 'search'});
+selector.append(id);
+```
+
+Arguments:
+
+* `node`: The node to add.
+
+### `container.insertBefore(old, new)` & `container.insertAfter(old, new)`
+
+Add a node before or after an existing node in a container:
+
+```js
+selectors.walk(selector => {
+    if (selector.type !== 'class') {
+        const className = parser.className({value: 'theme-name'});
+        selector.parent.insertAfter(selector, className);
+    }
+});
+```
+
+Arguments:
+
+* `old`: The existing node in the container.
+* `new`: The new node to add before/after the existing node.
+
+### `container.removeChild(node)`
+
+Remove the node from the container. Note that you can also use
+`node.remove()` if you would like to remove just a single node.
+
+```js
+selector.length // => 2
+selector.remove(id)
+selector.length // => 1;
+id.parent       // undefined
+```
+
+Arguments:
+
+* `node`: The node to remove.
+
+### `container.removeAll()` or `container.empty()`
+
+Remove all children from the container.
+
+```js
+selector.removeAll();
+selector.length // => 0
+```
+
+## Root nodes
+
+A root node represents a comma separated list of selectors. Indeed, all
+a root's `toString()` method does is join its selector children with a ','.
+Other than this, it has no special functionality and acts like a container.
+
+### `root.trailingComma`
+
+This will be set to `true` if the input has a trailing comma, in order to
+support parsing of legacy CSS hacks.
+
+## Selector nodes
+
+A selector node represents a single complex selector. For example, this
+selector string `h1 h2 h3, [href] > p`, is represented as two selector nodes.
+It has no special functionality of its own.
+
+## Pseudo nodes
+
+A pseudo selector extends a container node; if it has any parameters of its
+own (such as `h1:not(h2, h3)`), they will be its children. Note that the pseudo
+`value` will always contain the colons preceding the pseudo identifier. This
+is so that both `:before` and `::before` are properly represented in the AST.
+
+## Attribute nodes
+
+### `attribute.quoted`
+
+Returns `true` if the attribute's value is wrapped in quotation marks, false if it is not.
+Remains `undefined` if there is no attribute value.
+
+```css
+[href=foo] /* false */
+[href='foo'] /* true */
+[href="foo"] /* true */
+[href] /* undefined */
+```
+
+### `attribute.qualifiedAttribute`
+
+Returns the attribute name qualified with the namespace if one is given.
+
+### `attribute.offsetOf(part)`
+
+ Returns the offset of the attribute part specified relative to the
+ start of the node of the output string. This is useful in raising
+ error messages about a specific part of the attribute, especially
+ in combination with `attribute.sourceIndex`.
+
+ Returns `-1` if the name is invalid or the value doesn't exist in this
+ attribute.
+
+ The legal values for `part` are:
+
+ * `"ns"` - alias for "namespace"
+ * `"namespace"` - the namespace if it exists.
+ * `"attribute"` - the attribute name
+ * `"attributeNS"` - the start of the attribute or its namespace
+ * `"operator"` - the match operator of the attribute
+ * `"value"` - The value (string or identifier)
+ * `"insensitive"` - the case insensitivity flag
+
+### `attribute.raws.unquoted`
+
+Returns the unquoted content of the attribute's value.
+Remains `undefined` if there is no attribute value.
+
+```css
+[href=foo] /* foo */
+[href='foo'] /* foo */
+[href="foo"] /* foo */
+[href] /* undefined */
+```
+
+### `attribute.spaces`
+
+Like `node.spaces` with the `before` and `after` values containing the spaces
+around the element, the parts of the attribute can also have spaces before
+and after them. The for each of `attribute`, `operator`, `value` and
+`insensitive` there is corresponding property of the same nam in
+`node.spaces` that has an optional `before` or `after` string containing only
+whitespace.
+
+Note that corresponding values in `attributes.raws.spaces` contain values
+including any comments. If set, these values will override the
+`attribute.spaces` value. Take care to remove them if changing
+`attribute.spaces`.
+
+### `attribute.raws`
+
+The raws object stores comments and other information necessary to re-render
+the node exactly as it was in the source.
+
+If a comment is embedded within the identifiers for the `namespace`, `attribute`
+or `value` then a property is placed in the raws for that value containing the full source of the propery including comments.
+
+If a comment is embedded within the space between parts of the attribute
+then the raw for that space is set accordingly.
+
+Setting an attribute's property `raws` value to be deleted.
+
+For now, changing the spaces required also updating or removing any of the
+raws values that override them.
+
+Example: `[ /*before*/ href /* after-attr */ = /* after-operator */ te/*inside-value*/st/* wow */ /*omg*/i/*bbq*/ /*whodoesthis*/]` would parse as:
+
+```js
+{
+  attribute: "href",
+  operatator: "=",
+  value: "test",
+  spaces: {
+    before: '',
+    after: '',
+    attribute: { before: '  ', after: '  ' },
+    operator: { after: '  ' },
+    value: { after: ' ' },
+    insensitive: { after: ' ' }
+  },
+  raws: {
+    spaces: {
+      attribute: { before: ' /*before*/ ', after: ' /* after-attr */ ' },
+      operator: { after: ' /* after-operator */ ' },
+      value: { after: '/* wow */ /*omg*/' },
+      insensitive: { after: '/*bbq*/ /*whodoesthis*/' }
+    },
+    unquoted: 'test',
+    value: 'te/*inside-value*/st'
+  }
+}
+```
+
+## `Processor`
+
+### `ProcessorOptions`
+
+* `lossless` - When `true`, whitespace is preserved. Defaults to `true`.
+* `updateSelector` - When `true`, if any processor methods are passed a postcss
+  `Rule` node instead of a string, then that Rule's selector is updated
+  with the results of the processing. Defaults to `true`.
+
+### `process|processSync(selectors, [options])`
+
+Processes the `selectors`, returning a string from the result of processing.
+
+Note: when the `updateSelector` option is set, the rule's selector
+will be updated with the resulting string.
+
+**Example:**
+
+```js
+const parser = require("postcss-selector-parser");
+const processor = parser();
+
+let result = processor.processSync(' .class');
+console.log(result);
+// =>  .class
+
+// Asynchronous operation
+let promise = processor.process(' .class').then(result => {
+    console.log(result)
+    // => .class
+});
+
+// To have the parser normalize whitespace values, utilize the options
+result = processor.processSync('  .class  ', {lossless: false});
+console.log(result);
+// => .class
+
+// For better syntax errors, pass a PostCSS Rule node.
+const postcss = require('postcss');
+rule = postcss.rule({selector: ' #foo    > a,  .class  '});
+processor.process(rule, {lossless: false, updateSelector: true}).then(result => {
+    console.log(result);
+    // => #foo>a,.class
+    console.log("rule:", rule.selector);
+    // => rule: #foo>a,.class
+})
+```
+
+Arguments:
+
+* `selectors (string|postcss.Rule)`: Either a selector string or a PostCSS Rule
+  node.
+* `[options] (object)`: Process options
+
+
+### `ast|astSync(selectors, [options])`
+
+Like `process()` and `processSync()` but after
+processing the `selectors` these methods return the `Root` node of the result
+instead of a string.
+
+Note: when the `updateSelector` option is set, the rule's selector
+will be updated with the resulting string.
+
+### `transform|transformSync(selectors, [options])`
+
+Like `process()` and `processSync()` but after
+processing the `selectors` these methods return the value returned by the
+processor callback.
+
+Note: when the `updateSelector` option is set, the rule's selector
+will be updated with the resulting string.
+
+### Error Handling Within Selector Processors
+
+The root node passed to the selector processor callback
+has a method `error(message, options)` that returns an
+error object. This method should always be used to raise
+errors relating to the syntax of selectors. The options
+to this method are passed to postcss's error constructor
+([documentation](http://api.postcss.org/Container.html#error)).
+
+#### Async Error Example
+
+```js
+let processor = (root) => {
+    return new Promise((resolve, reject) => {
+        root.walkClasses((classNode) => {
+            if (/^(.*)[-_]/.test(classNode.value)) {
+                let msg = "classes may not have underscores or dashes in them";
+                reject(root.error(msg, {
+                    index: classNode.sourceIndex + RegExp.$1.length + 1,
+                    word: classNode.value
+                }));
+            }
+        });
+        resolve();
+    });
+};
+
+const postcss = require("postcss");
+const parser = require("postcss-selector-parser");
+const selectorProcessor = parser(processor);
+const plugin = postcss.plugin('classValidator', (options) => {
+    return (root) => {
+        let promises = [];
+        root.walkRules(rule => {
+            promises.push(selectorProcessor.process(rule));
+        });
+        return Promise.all(promises);
+    };
+});
+postcss(plugin()).process(`
+.foo-bar {
+  color: red;
+}
+`.trim(), {from: 'test.css'}).catch((e) => console.error(e.toString()));
+
+// CssSyntaxError: classValidator: ./test.css:1:5: classes may not have underscores or dashes in them
+//
+// > 1 | .foo-bar {
+//     |     ^
+//   2 |   color: red;
+//   3 | }
+```
+
+#### Synchronous Error Example
+
+```js
+let processor = (root) => {
+    root.walkClasses((classNode) => {
+        if (/.*[-_]/.test(classNode.value)) {
+            let msg = "classes may not have underscores or dashes in them";
+            throw root.error(msg, {
+                index: classNode.sourceIndex,
+                word: classNode.value
+            });
+        }
+    });
+};
+
+const postcss = require("postcss");
+const parser = require("postcss-selector-parser");
+const selectorProcessor = parser(processor);
+const plugin = postcss.plugin('classValidator', (options) => {
+    return (root) => {
+        root.walkRules(rule => {
+            selectorProcessor.processSync(rule);
+        });
+    };
+});
+postcss(plugin()).process(`
+.foo-bar {
+  color: red;
+}
+`.trim(), {from: 'test.css'}).catch((e) => console.error(e.toString()));
+
+// CssSyntaxError: classValidator: ./test.css:1:5: classes may not have underscores or dashes in them
+//
+// > 1 | .foo-bar {
+//     |     ^
+//   2 |   color: red;
+//   3 | }
+```

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/CHANGELOG.md

@@ -0,0 +1,466 @@
+# 5.0.0
+
+- Allow escaped dot within class name.
+- Update PostCSS to 7.0.7 (patch)
+
+# 5.0.0-rc.4
+
+- Fixed and issue where comments immediately after an insensitive
+  (in attribute) were not parsed correctly.
+- Updated `cssesc` to 2.0.0 (major).
+- Removed outdated integration tests.
+- Added tests for custom selectors, tags with attributes, the universal
+  selector with pseudos, and tokens after combinators.
+
+# 5.0.0-rc.1
+
+To ease adoption of the v5.0 release, we have relaxed the node version
+check performed by npm at installation time to allow for node 4, which
+remains officially unsupported, but likely to continue working for the
+time being.
+
+# 5.0.0-rc.0
+
+This release has **BREAKING CHANGES** that were required to fix regressions
+in 4.0.0 and to make the Combinator Node API consistent for all combinator
+types. Please read carefully.
+
+## Summary of Changes
+
+* The way a descendent combinator that isn't a single space character (E.g. `.a  .b`) is stored in the AST has changed.
+* Named Combinators (E.g. `.a /for/ .b`) are now properly parsed as a combinator.
+* It is now possible to look up a node based on the source location of a character in that node and to query nodes if they contain some character.
+* Several bug fixes that caused the parser to hang and run out of memory when a `/` was encountered have been fixed.
+* The minimum supported version of Node is now `v6.0.0`.
+
+### Changes to the Descendent Combinator
+
+In prior releases, the value of a descendant combinator with multiple spaces included all the spaces.
+
+* `.a   .b`: Extra spaces are now stored as space before.
+  - Old & Busted:
+    - `combinator.value === "   "`
+  - New hotness:
+    - `combinator.value === " " && combinator.spaces.before === "  "`
+* `.a   /*comment*/.b`: A comment at the end of the combinator causes extra space to become after space.
+  - Old & Busted:
+    - `combinator.value === "   "`
+    - `combinator.raws.value === "   /*comment/"`
+  - New hotness:
+    - `combinator.value === " "`
+    - `combinator.spaces.after === "  "`
+    - `combinator.raws.spaces.after === "  /*comment*/"`
+* `.a<newline>.b`: whitespace that doesn't start or end with a single space character is stored as a raw value.
+  - Old & Busted:
+    - `combinator.value === "\n"`
+    - `combinator.raws.value === undefined`
+  - New hotness:
+    - `combinator.value === " "`
+    - `combinator.raws.value === "\n"`
+
+### Support for "Named Combinators"
+
+Although, nonstandard and unlikely to ever become a standard, combinators like `/deep/` and `/for/` are now properly supported.
+
+Because they've been taken off the standardization track, there is no spec-official name for combinators of the form `/<ident>/`. However, I talked to [Tab Atkins](https://twitter.com/tabatkins) and we agreed to call them "named combinators" so now they are called that.
+
+Before this release such named combinators were parsed without intention and generated three nodes of type `"tag"` where the first and last nodes had a value of `"/"`.
+
+* `.a /for/ .b` is parsed as a combinator.
+  - Old & Busted:
+    - `root.nodes[0].nodes[1].type === "tag"`
+    - `root.nodes[0].nodes[1].value === "/"`
+  - New hotness:
+    - `root.nodes[0].nodes[1].type === "combinator"`
+    - `root.nodes[0].nodes[1].value === "/for/"`
+* `.a /F\6fR/ .b` escapes are handled and uppercase is normalized.
+  - Old & Busted:
+    - `root.nodes[0].nodes[2].type === "tag"`
+    - `root.nodes[0].nodes[2].value === "F\\6fR"`
+  - New hotness:
+    - `root.nodes[0].nodes[1].type === "combinator"`
+    - `root.nodes[0].nodes[1].value === "/for/"`
+    - `root.nodes[0].nodes[1].raws.value === "/F\\6fR/"`
+
+### Source position checks and lookups
+
+A new API was added to look up a node based on the source location.
+
+```js
+const selectorParser = require("postcss-selector-parser");
+// You can find the most specific node for any given character
+let combinator = selectorParser.astSync(".a > .b").atPosition(1,4);
+combinator.toString() === " > ";
+// You can check if a node includes a specific character
+// Whitespace surrounding the node that is owned by that node
+// is included in the check.
+[2,3,4,5,6].map(column => combinator.isAtPosition(1, column));
+// => [false, true, true, true, false]
+```
+
+# 4.0.0
+
+This release has **BREAKING CHANGES** that were required to fix bugs regarding values with escape sequences. Please read carefully.
+
+* **Identifiers with escapes** - CSS escape sequences are now hidden from the public API by default.
+  The normal value of a node like a class name or ID, or an aspect of a node such as attribute
+  selector's value, is unescaped. Escapes representing Non-ascii characters are unescaped into
+  unicode characters. For example: `bu\tton, .\31 00, #i\2764\FE0Fu, [attr="value is \"quoted\""]`
+  will parse respectively to the values `button`, `100`, `i❤️u`, `value is "quoted"`.
+  The original escape sequences for these values can be found in the corresponding property name
+  in `node.raws`. Where possible, deprecation warnings were added, but the nature
+  of escape handling makes it impossible to detect what is escaped or not. Our expectation is
+  that most users are neither expecting nor handling escape sequences in their use of this library,
+  and so for them, this is a bug fix. Users who are taking care to handle escapes correctly can
+  now update their code to remove the escape handling and let us do it for them.
+
+* **Mutating values with escapes** - When you make an update to a node property that has escape handling
+  The value is assumed to be unescaped, and any special characters are escaped automatically and
+  the corresponding `raws` value is immediately updated. This can result in changes to the original
+  escape format. Where the exact value of the escape sequence is important there are methods that
+  allow both values to be set in conjunction. There are a number of new convenience methods for
+  manipulating values that involve escapes, especially for attributes values where the quote mark
+  is involved. See https://github.com/postcss/postcss-selector-parser/pull/133 for an extensive
+  write-up on these changes.
+
+
+**Upgrade/API Example**
+
+In `3.x` there was no unescape handling and internal consistency of several properties was the caller's job to maintain. It was very easy for the developer
+to create a CSS file that did not parse correctly when some types of values
+were in use.
+
+```js
+const selectorParser = require("postcss-selector-parser");
+let attr = selectorParser.attribute({attribute: "id", operator: "=", value: "a-value"});
+attr.value; // => "a-value"
+attr.toString(); // => [id=a-value]
+// Add quotes to an attribute's value.
+// All these values have to be set by the caller to be consistent:
+// no internal consistency is maintained.
+attr.raws.unquoted = attr.value
+attr.value = "'" + attr.value + "'";
+attr.value; // => "'a-value'"
+attr.quoted = true;
+attr.toString();  // => "[id='a-value']"
+```
+
+In `4.0` there is a convenient API for setting and mutating values
+that may need escaping. Especially for attributes.
+
+```js
+const selectorParser = require("postcss-selector-parser");
+
+// The constructor requires you specify the exact escape sequence
+let className = selectorParser.className({value: "illegal class name", raws: {value: "illegal\\ class\\ name"}});
+className.toString(); // => '.illegal\\ class\\ name'
+
+// So it's better to set the value as a property
+className = selectorParser.className();
+// Most properties that deal with identifiers work like this
+className.value = "escape for me";
+className.value; // => 'escape for me'
+className.toString(); // => '.escape\\ for\\ me'
+
+// emoji and all non-ascii are escaped to ensure it works in every css file.
+className.value = "😱🦄😍";
+className.value; // => '😱🦄😍'
+className.toString(); // => '.\\1F631\\1F984\\1F60D'
+
+// you can control the escape sequence if you want, or do bad bad things
+className.setPropertyAndEscape('value', 'xxxx', 'yyyy');
+className.value; // => "xxxx"
+className.toString(); // => ".yyyy"
+
+// Pass a value directly through to the css output without escaping it. 
+className.setPropertyWithoutEscape('value', '$REPLACE_ME$');
+className.value; // => "$REPLACE_ME$"
+className.toString(); // => ".$REPLACE_ME$"
+
+// The biggest changes are to the Attribute class
+// passing quoteMark explicitly is required to avoid a deprecation warning.
+let attr = selectorParser.attribute({attribute: "id", operator: "=", value: "a-value", quoteMark: null});
+attr.toString(); // => "[id=a-value]"
+// Get the value with quotes on it and any necessary escapes.
+// This is the same as reading attr.value in 3.x.
+attr.getQuotedValue(); // => "a-value";
+attr.quoteMark; // => null
+
+// Add quotes to an attribute's value.
+attr.quoteMark = "'"; // This is all that's required.
+attr.toString(); // => "[id='a-value']"
+attr.quoted; // => true
+// The value is still the same, only the quotes have changed.
+attr.value; // => a-value
+attr.getQuotedValue(); // => "'a-value'";
+
+// deprecated assignment, no warning because there's no escapes
+attr.value = "new-value";
+// no quote mark is needed so it is removed
+attr.getQuotedValue(); // => "new-value";
+
+// deprecated assignment, 
+attr.value = "\"a 'single quoted' value\"";
+// > (node:27859) DeprecationWarning: Assigning an attribute a value containing characters that might need to be escaped is deprecated. Call attribute.setValue() instead.
+attr.getQuotedValue(); // => '"a \'single quoted\' value"';
+// quote mark inferred from first and last characters.
+attr.quoteMark; // => '"'
+
+// setValue takes options to make manipulating the value simple.
+attr.setValue('foo', {smart: true});
+// foo doesn't require any escapes or quotes.
+attr.toString(); // => '[id=foo]'
+attr.quoteMark; // => null 
+
+// An explicit quote mark can be specified
+attr.setValue('foo', {quoteMark: '"'});
+attr.toString(); // => '[id="foo"]'
+
+// preserves quote mark by default
+attr.setValue('bar');
+attr.toString(); // => '[id="bar"]'
+attr.quoteMark = null;
+attr.toString(); // => '[id=bar]'
+
+// with no arguments, it preserves quote mark even when it's not a great idea
+attr.setValue('a value \n that should be quoted');
+attr.toString(); // => '[id=a\\ value\\ \\A\\ that\\ should\\ be\\ quoted]'
+
+// smart preservation with a specified default
+attr.setValue('a value \n that should be quoted', {smart: true, preferCurrentQuoteMark: true, quoteMark: "'"});
+// => "[id='a value \\A  that should be quoted']"
+attr.quoteMark = '"';
+// => '[id="a value \\A  that should be quoted"]'
+
+// this keeps double quotes because it wants to quote the value and the existing value has double quotes.
+attr.setValue('this should be quoted', {smart: true, preferCurrentQuoteMark: true, quoteMark: "'"});
+// => '[id="this should be quoted"]'
+
+// picks single quotes because the value has double quotes
+attr.setValue('a "double quoted" value', {smart: true, preferCurrentQuoteMark: true, quoteMark: "'"});
+// => "[id='a "double quoted" value']"
+
+// setPropertyAndEscape lets you do anything you want. Even things that are a bad idea and illegal.
+attr.setPropertyAndEscape('value', 'xxxx', 'the password is 42');
+attr.value; // => "xxxx"
+attr.toString(); // => "[id=the password is 42]"
+
+// Pass a value directly through to the css output without escaping it. 
+attr.setPropertyWithoutEscape('value', '$REPLACEMENT$');
+attr.value; // => "$REPLACEMENT$"
+attr.toString(); // => "[id=$REPLACEMENT$]"
+```
+
+# 3.1.2
+
+* Fix: Removed dot-prop dependency since it's no longer written in es5.
+
+# 3.1.1
+
+* Fix: typescript definitions weren't in the published package.
+
+# 3.1.0
+
+* Fixed numerous bugs in attribute nodes relating to the handling of comments
+  and whitespace. There's significant changes to `attrNode.spaces` and `attrNode.raws` since the `3.0.0` release.
+* Added `Attribute#offsetOf(part)` to get the offset location of
+  attribute parts like `"operator"` and `"value"`. This is most
+  often added to `Attribute#sourceIndex` for error reporting.
+
+# 3.0.0
+
+## Breaking changes
+
+* Some tweaks to the tokenizer/attribute selector parsing mean that whitespace
+  locations might be slightly different to the 2.x code.
+* Better attribute selector parsing with more validation; postcss-selector-parser
+  no longer uses regular expressions to parse attribute selectors.
+* Added an async API (thanks to @jacobp100); the default `process` API is now
+  async, and the sync API is now accessed through `processSync` instead.
+* `process()` and `processSync()` now return a string instead of the Processor
+  instance.
+* Tweaks handling of Less interpolation (thanks to @jwilsson).
+* Removes support for Node 0.12.
+
+## Other changes
+
+* `ast()` and `astSync()` methods have been added to the `Processor`. These
+  return the `Root` node of the selectors after processing them.
+* `transform()` and `transformSync()` methods have been added to the
+  `Processor`. These return the value returned by the processor callback
+  after processing the selectors.
+* Set the parent when inserting a node (thanks to @chriseppstein).
+* Correctly adjust indices when using insertBefore/insertAfter (thanks to @tivac).
+* Fixes handling of namespaces with qualified tag selectors.
+* `process`, `ast` and `transform` (and their sync variants) now accept a
+  `postcss` rule node. When provided, better errors are generated and selector
+  processing is automatically set back to the rule selector (unless the `updateSelector` option is set to `false`.)
+* Now more memory efficient when tokenizing selectors.
+
+### Upgrade hints
+
+The pattern of:
+
+`rule.selector = processor.process(rule.selector).result.toString();`
+
+is now:
+
+`processor.processSync(rule)`
+
+# 2.2.3
+
+* Resolves an issue where the parser would not reduce multiple spaces between an
+  ampersand and another simple selector in lossy mode (thanks to @adam-26).
+
+# 2.2.2
+
+* No longer hangs on an unescaped semicolon; instead the parser will throw
+  an exception for these cases.
+
+# 2.2.1
+
+* Allows a consumer to specify whitespace tokens when creating a new Node
+  (thanks to @Semigradsky).
+
+# 2.2.0
+
+* Added a new option to normalize whitespace when parsing the selector string
+  (thanks to @adam-26).
+
+# 2.1.1
+
+* Better unquoted value handling within attribute selectors
+  (thanks to @evilebottnawi).
+
+# 2.1.0
+
+* Added: Use string constants for all node types & expose them on the main
+  parser instance (thanks to @Aweary).
+
+# 2.0.0
+
+This release contains the following breaking changes:
+
+* Renamed all `eachInside` iterators to `walk`. For example, `eachTag` is now
+  `walkTags`, and `eachInside` is now `walk`.
+* Renamed `Node#removeSelf()` to `Node#remove()`.
+* Renamed `Container#remove()` to `Container#removeChild()`.
+* Renamed `Node#raw` to `Node#raws` (thanks to @davidtheclark).
+* Now parses `&` as the *nesting* selector, rather than a *tag* selector.
+* Fixes misinterpretation of Sass interpolation (e.g. `#{foo}`) as an
+  id selector (thanks to @davidtheclark).
+
+and;
+
+* Fixes parsing of attribute selectors with equals signs in them
+  (e.g. `[data-attr="foo=bar"]`) (thanks to @montmanu).
+* Adds `quoted` and `raw.unquoted` properties to attribute nodes
+  (thanks to @davidtheclark).
+
+# 1.3.3
+
+* Fixes an infinite loop on `)` and `]` tokens when they had no opening pairs.
+  Now postcss-selector-parser will throw when it encounters these lone tokens.
+
+# 1.3.2
+
+* Now uses plain integers rather than `str.charCodeAt(0)` for compiled builds.
+
+# 1.3.1
+
+* Update flatten to v1.x (thanks to @shinnn).
+
+# 1.3.0
+
+* Adds a new node type, `String`, to fix a crash on selectors such as
+  `foo:bar("test")`.
+
+# 1.2.1
+
+* Fixes a crash when the parser encountered a trailing combinator.
+
+# 1.2.0
+
+* A more descriptive error is thrown when the parser expects to find a
+  pseudo-class/pseudo-element (thanks to @ashelley).
+* Adds support for line/column locations for selector nodes, as well as a
+  `Node#sourceIndex` method (thanks to @davidtheclark).
+
+# 1.1.4
+
+* Fixes a crash when a selector started with a `>` combinator. The module will
+  now no longer throw if a selector has a leading/trailing combinator node.
+
+# 1.1.3
+
+* Fixes a crash on `@` tokens.
+
+# 1.1.2
+
+* Fixes an infinite loop caused by using parentheses in a non-pseudo element
+  context.
+
+# 1.1.1
+
+* Fixes a crash when a backslash ended a selector string.
+
+# 1.1.0
+
+* Adds support for replacing multiple nodes at once with `replaceWith`
+  (thanks to @jonathantneal).
+* Parser no longer throws on sequential IDs and trailing commas, to support
+  parsing of selector hacks.
+
+# 1.0.1
+
+* Fixes using `insertAfter` and `insertBefore` during iteration.
+
+# 1.0.0
+
+* Adds `clone` and `replaceWith` methods to nodes.
+* Adds `insertBefore` and `insertAfter` to containers.
+* Stabilises API.
+
+# 0.0.5
+
+* Fixes crash on extra whitespace inside a pseudo selector's parentheses.
+* Adds sort function to the container class.
+* Enables the parser to pass its input through without transforming.
+* Iteration-safe `each` and `eachInside`.
+
+# 0.0.4
+
+* Tidy up redundant duplication.
+* Fixes a bug where the parser would loop infinitely on universal selectors
+  inside pseudo selectors.
+* Adds `length` getter and `eachInside`, `map`, `reduce` to the container class.
+* When a selector has been removed from the tree, the root node will no longer
+  cast it to a string.
+* Adds node type iterators to the container class (e.g. `eachComment`).
+* Adds filter function to the container class.
+* Adds split function to the container class.
+* Create new node types by doing `parser.id(opts)` etc.
+* Adds support for pseudo classes anywhere in the selector.
+
+# 0.0.3
+
+* Adds `next` and `prev` to the node class.
+* Adds `first` and `last` getters to the container class.
+* Adds `every` and `some` iterators to the container class.
+* Add `empty` alias for `removeAll`.
+* Combinators are now types of node.
+* Fixes the at method so that it is not an alias for `index`.
+* Tidy up creation of new nodes in the parser.
+* Refactors how namespaces are handled for consistency & less redundant code.
+* Refactors AST to use `nodes` exclusively, and eliminates excessive nesting.
+* Fixes nested pseudo parsing.
+* Fixes whitespace parsing.
+
+# 0.0.2
+
+* Adds support for namespace selectors.
+* Adds support for selectors joined by escaped spaces - such as `.\31\ 0`.
+
+# 0.0.1
+
+* Initial release.

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/LICENSE-MIT

@@ -0,0 +1,22 @@
+Copyright (c) Ben Briggs <beneb.info@gmail.com> (http://beneb.info)
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/README.md

@@ -0,0 +1,49 @@
+# postcss-selector-parser [![Build Status](https://travis-ci.org/postcss/postcss-selector-parser.svg?branch=master)](https://travis-ci.org/postcss/postcss-selector-parser)
+
+> Selector parser with built in methods for working with selector strings.
+
+## Install
+
+With [npm](https://npmjs.com/package/postcss-selector-parser) do:
+
+```
+npm install postcss-selector-parser
+```
+
+## Quick Start
+
+```js
+const parser = require('postcss-selector-parser');
+const transform = selectors => {
+    selectors.walk(selector => {
+        // do something with the selector
+        console.log(String(selector))
+    });
+};
+
+const transformed = parser(transform).processSync('h1, h2, h3');
+```
+
+To normalize selector whitespace:
+
+```js
+const parser = require('postcss-selector-parser');
+const normalized = parser().processSync('h1, h2, h3', {lossless: false});
+// -> h1,h2,h3
+```
+
+Async support is provided through `parser.process` and will resolve a Promise
+with the resulting selector string.
+
+## API
+
+Please see [API.md](API.md).
+
+## Credits
+
+* Huge thanks to Andrey Sitnik (@ai) for work on PostCSS which helped
+  accelerate this module's development.
+
+## License
+
+MIT

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/index.js

@@ -0,0 +1,26 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _processor = require('./processor');
+
+var _processor2 = _interopRequireDefault(_processor);
+
+var _selectors = require('./selectors');
+
+var selectors = _interopRequireWildcard(_selectors);
+
+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 }; }
+
+var parser = function parser(processor) {
+  return new _processor2.default(processor);
+};
+
+Object.assign(parser, selectors);
+
+delete parser.__esModule;
+
+exports.default = parser;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/processor.js

@@ -0,0 +1,185 @@
+"use strict";
+
+exports.__esModule = true;
+
+var _parser = require("./parser");
+
+var _parser2 = _interopRequireDefault(_parser);
+
+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 Processor = function () {
+    function Processor(func, options) {
+        _classCallCheck(this, Processor);
+
+        this.func = func || function noop() {};
+        this.funcRes = null;
+        this.options = options;
+    }
+
+    Processor.prototype._shouldUpdateSelector = function _shouldUpdateSelector(rule) {
+        var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+        var merged = Object.assign({}, this.options, options);
+        if (merged.updateSelector === false) {
+            return false;
+        } else {
+            return typeof rule !== "string";
+        }
+    };
+
+    Processor.prototype._isLossy = function _isLossy() {
+        var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+        var merged = Object.assign({}, this.options, options);
+        if (merged.lossless === false) {
+            return true;
+        } else {
+            return false;
+        }
+    };
+
+    Processor.prototype._root = function _root(rule) {
+        var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+        var parser = new _parser2.default(rule, this._parseOptions(options));
+        return parser.root;
+    };
+
+    Processor.prototype._parseOptions = function _parseOptions(options) {
+        return {
+            lossy: this._isLossy(options)
+        };
+    };
+
+    Processor.prototype._run = function _run(rule) {
+        var _this = this;
+
+        var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+        return new Promise(function (resolve, reject) {
+            try {
+                var root = _this._root(rule, options);
+                Promise.resolve(_this.func(root)).then(function (transform) {
+                    var string = undefined;
+                    if (_this._shouldUpdateSelector(rule, options)) {
+                        string = root.toString();
+                        rule.selector = string;
+                    }
+                    return { transform: transform, root: root, string: string };
+                }).then(resolve, reject);
+            } catch (e) {
+                reject(e);
+                return;
+            }
+        });
+    };
+
+    Processor.prototype._runSync = function _runSync(rule) {
+        var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+        var root = this._root(rule, options);
+        var transform = this.func(root);
+        if (transform && typeof transform.then === "function") {
+            throw new Error("Selector processor returned a promise to a synchronous call.");
+        }
+        var string = undefined;
+        if (options.updateSelector && typeof rule !== "string") {
+            string = root.toString();
+            rule.selector = string;
+        }
+        return { transform: transform, root: root, string: string };
+    };
+
+    /**
+     * Process rule into a selector AST.
+     *
+     * @param rule {postcss.Rule | string} The css selector to be processed
+     * @param options The options for processing
+     * @returns {Promise<parser.Root>} The AST of the selector after processing it.
+     */
+
+
+    Processor.prototype.ast = function ast(rule, options) {
+        return this._run(rule, options).then(function (result) {
+            return result.root;
+        });
+    };
+
+    /**
+     * Process rule into a selector AST synchronously.
+     *
+     * @param rule {postcss.Rule | string} The css selector to be processed
+     * @param options The options for processing
+     * @returns {parser.Root} The AST of the selector after processing it.
+     */
+
+
+    Processor.prototype.astSync = function astSync(rule, options) {
+        return this._runSync(rule, options).root;
+    };
+
+    /**
+     * Process a selector into a transformed value asynchronously
+     *
+     * @param rule {postcss.Rule | string} The css selector to be processed
+     * @param options The options for processing
+     * @returns {Promise<any>} The value returned by the processor.
+     */
+
+
+    Processor.prototype.transform = function transform(rule, options) {
+        return this._run(rule, options).then(function (result) {
+            return result.transform;
+        });
+    };
+
+    /**
+     * Process a selector into a transformed value synchronously.
+     *
+     * @param rule {postcss.Rule | string} The css selector to be processed
+     * @param options The options for processing
+     * @returns {any} The value returned by the processor.
+     */
+
+
+    Processor.prototype.transformSync = function transformSync(rule, options) {
+        return this._runSync(rule, options).transform;
+    };
+
+    /**
+     * Process a selector into a new selector string asynchronously.
+     *
+     * @param rule {postcss.Rule | string} The css selector to be processed
+     * @param options The options for processing
+     * @returns {string} the selector after processing.
+     */
+
+
+    Processor.prototype.process = function process(rule, options) {
+        return this._run(rule, options).then(function (result) {
+            return result.string || result.root.toString();
+        });
+    };
+
+    /**
+     * Process a selector into a new selector string synchronously.
+     *
+     * @param rule {postcss.Rule | string} The css selector to be processed
+     * @param options The options for processing
+     * @returns {string} the selector after processing.
+     */
+
+
+    Processor.prototype.processSync = function processSync(rule, options) {
+        var result = this._runSync(rule, options);
+        return result.string || result.root.toString();
+    };
+
+    return Processor;
+}();
+
+exports.default = Processor;
+module.exports = exports["default"];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/attribute.js

@@ -0,0 +1,468 @@
+"use strict";
+
+exports.__esModule = true;
+
+var _CSSESC_QUOTE_OPTIONS;
+
+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; }; }();
+
+exports.unescapeValue = unescapeValue;
+
+var _cssesc = require("cssesc");
+
+var _cssesc2 = _interopRequireDefault(_cssesc);
+
+var _unesc = require("../util/unesc");
+
+var _unesc2 = _interopRequireDefault(_unesc);
+
+var _namespace = require("./namespace");
+
+var _namespace2 = _interopRequireDefault(_namespace);
+
+var _types = require("./types");
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var _require = require("util"),
+    deprecate = _require.deprecate;
+
+var WRAPPED_IN_QUOTES = /^('|")(.*)\1$/;
+
+var warnOfDeprecatedValueAssignment = deprecate(function () {}, "Assigning an attribute a value containing characters that might need to be escaped is deprecated. " + "Call attribute.setValue() instead.");
+
+var warnOfDeprecatedQuotedAssignment = deprecate(function () {}, "Assigning attr.quoted is deprecated and has no effect. Assign to attr.quoteMark instead.");
+
+var warnOfDeprecatedConstructor = deprecate(function () {}, "Constructing an Attribute selector with a value without specifying quoteMark is deprecated. Note: The value should be unescaped now.");
+
+function unescapeValue(value) {
+    var deprecatedUsage = false;
+    var quoteMark = null;
+    var unescaped = value;
+    var m = unescaped.match(WRAPPED_IN_QUOTES);
+    if (m) {
+        quoteMark = m[1];
+        unescaped = m[2];
+    }
+    unescaped = (0, _unesc2.default)(unescaped);
+    if (unescaped !== value) {
+        deprecatedUsage = true;
+    }
+    return {
+        deprecatedUsage: deprecatedUsage,
+        unescaped: unescaped,
+        quoteMark: quoteMark
+    };
+}
+
+function handleDeprecatedContructorOpts(opts) {
+    if (opts.quoteMark !== undefined) {
+        return opts;
+    }
+    if (opts.value === undefined) {
+        return opts;
+    }
+    warnOfDeprecatedConstructor();
+
+    var _unescapeValue = unescapeValue(opts.value),
+        quoteMark = _unescapeValue.quoteMark,
+        unescaped = _unescapeValue.unescaped;
+
+    if (!opts.raws) {
+        opts.raws = {};
+    }
+    if (opts.raws.value === undefined) {
+        opts.raws.value = opts.value;
+    }
+    opts.value = unescaped;
+    opts.quoteMark = quoteMark;
+    return opts;
+}
+
+var Attribute = function (_Namespace) {
+    _inherits(Attribute, _Namespace);
+
+    function Attribute() {
+        var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+        _classCallCheck(this, Attribute);
+
+        var _this = _possibleConstructorReturn(this, _Namespace.call(this, handleDeprecatedContructorOpts(opts)));
+
+        _this.type = _types.ATTRIBUTE;
+        _this.raws = _this.raws || {};
+        Object.defineProperty(_this.raws, 'unquoted', {
+            get: deprecate(function () {
+                return _this.value;
+            }, "attr.raws.unquoted is deprecated. Call attr.value instead."),
+            set: deprecate(function () {
+                return _this.value;
+            }, "Setting attr.raws.unquoted is deprecated and has no effect. attr.value is unescaped by default now.")
+        });
+        _this._constructed = true;
+        return _this;
+    }
+
+    /**
+     * Returns the Attribute's value quoted such that it would be legal to use
+     * in the value of a css file. The original value's quotation setting
+     * used for stringification is left unchanged. See `setValue(value, options)`
+     * if you want to control the quote settings of a new value for the attribute.
+     *
+     * You can also change the quotation used for the current value by setting quoteMark.
+     *
+     * Options:
+     *   * quoteMark {'"' | "'" | null} - Use this value to quote the value. If this
+     *     option is not set, the original value for quoteMark will be used. If
+     *     indeterminate, a double quote is used. The legal values are:
+     *     * `null` - the value will be unquoted and characters will be escaped as necessary.
+     *     * `'` - the value will be quoted with a single quote and single quotes are escaped.
+     *     * `"` - the value will be quoted with a double quote and double quotes are escaped.
+     *   * preferCurrentQuoteMark {boolean} - if true, prefer the source quote mark
+     *     over the quoteMark option value.
+     *   * smart {boolean} - if true, will select a quote mark based on the value
+     *     and the other options specified here. See the `smartQuoteMark()`
+     *     method.
+     **/
+
+
+    Attribute.prototype.getQuotedValue = function getQuotedValue() {
+        var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+        var quoteMark = this._determineQuoteMark(options);
+        var cssescopts = CSSESC_QUOTE_OPTIONS[quoteMark];
+        var escaped = (0, _cssesc2.default)(this._value, cssescopts);
+        return escaped;
+    };
+
+    Attribute.prototype._determineQuoteMark = function _determineQuoteMark(options) {
+        return options.smart ? this.smartQuoteMark(options) : this.preferredQuoteMark(options);
+    };
+
+    /**
+     * Set the unescaped value with the specified quotation options. The value
+     * provided must not include any wrapping quote marks -- those quotes will
+     * be interpreted as part of the value and escaped accordingly.
+     */
+
+
+    Attribute.prototype.setValue = function setValue(value) {
+        var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+        this._value = value;
+        this._quoteMark = this._determineQuoteMark(options);
+        this._syncRawValue();
+    };
+
+    /**
+     * Intelligently select a quoteMark value based on the value's contents. If
+     * the value is a legal CSS ident, it will not be quoted. Otherwise a quote
+     * mark will be picked that minimizes the number of escapes.
+     *
+     * If there's no clear winner, the quote mark from these options is used,
+     * then the source quote mark (this is inverted if `preferCurrentQuoteMark` is
+     * true). If the quoteMark is unspecified, a double quote is used.
+     *
+     * @param options This takes the quoteMark and preferCurrentQuoteMark options
+     * from the quoteValue method.
+     */
+
+
+    Attribute.prototype.smartQuoteMark = function smartQuoteMark(options) {
+        var v = this.value;
+        var numSingleQuotes = v.replace(/[^']/g, '').length;
+        var numDoubleQuotes = v.replace(/[^"]/g, '').length;
+        if (numSingleQuotes + numDoubleQuotes === 0) {
+            var escaped = (0, _cssesc2.default)(v, { isIdentifier: true });
+            if (escaped === v) {
+                return Attribute.NO_QUOTE;
+            } else {
+                var pref = this.preferredQuoteMark(options);
+                if (pref === Attribute.NO_QUOTE) {
+                    // pick a quote mark that isn't none and see if it's smaller
+                    var quote = this.quoteMark || options.quoteMark || Attribute.DOUBLE_QUOTE;
+                    var opts = CSSESC_QUOTE_OPTIONS[quote];
+                    var quoteValue = (0, _cssesc2.default)(v, opts);
+                    if (quoteValue.length < escaped.length) {
+                        return quote;
+                    }
+                }
+                return pref;
+            }
+        } else if (numDoubleQuotes === numSingleQuotes) {
+            return this.preferredQuoteMark(options);
+        } else if (numDoubleQuotes < numSingleQuotes) {
+            return Attribute.DOUBLE_QUOTE;
+        } else {
+            return Attribute.SINGLE_QUOTE;
+        }
+    };
+
+    /**
+     * Selects the preferred quote mark based on the options and the current quote mark value.
+     * If you want the quote mark to depend on the attribute value, call `smartQuoteMark(opts)`
+     * instead.
+     */
+
+
+    Attribute.prototype.preferredQuoteMark = function preferredQuoteMark(options) {
+        var quoteMark = options.preferCurrentQuoteMark ? this.quoteMark : options.quoteMark;
+
+        if (quoteMark === undefined) {
+            quoteMark = options.preferCurrentQuoteMark ? options.quoteMark : this.quoteMark;
+        }
+
+        if (quoteMark === undefined) {
+            quoteMark = Attribute.DOUBLE_QUOTE;
+        }
+
+        return quoteMark;
+    };
+
+    Attribute.prototype._syncRawValue = function _syncRawValue() {
+        var rawValue = (0, _cssesc2.default)(this._value, CSSESC_QUOTE_OPTIONS[this.quoteMark]);
+        if (rawValue === this._value) {
+            if (this.raws) {
+                delete this.raws.value;
+            }
+        } else {
+            this.raws.value = rawValue;
+        }
+    };
+
+    Attribute.prototype._handleEscapes = function _handleEscapes(prop, value) {
+        if (this._constructed) {
+            var escaped = (0, _cssesc2.default)(value, { isIdentifier: true });
+            if (escaped !== value) {
+                this.raws[prop] = escaped;
+            } else {
+                delete this.raws[prop];
+            }
+        }
+    };
+
+    Attribute.prototype._spacesFor = function _spacesFor(name) {
+        var attrSpaces = { before: '', after: '' };
+        var spaces = this.spaces[name] || {};
+        var rawSpaces = this.raws.spaces && this.raws.spaces[name] || {};
+        return Object.assign(attrSpaces, spaces, rawSpaces);
+    };
+
+    Attribute.prototype._stringFor = function _stringFor(name) {
+        var spaceName = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : name;
+        var concat = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : defaultAttrConcat;
+
+        var attrSpaces = this._spacesFor(spaceName);
+        return concat(this.stringifyProperty(name), attrSpaces);
+    };
+
+    /**
+     * returns the offset of the attribute part specified relative to the
+     * start of the node of the output string.
+     *
+     * * "ns" - alias for "namespace"
+     * * "namespace" - the namespace if it exists.
+     * * "attribute" - the attribute name
+     * * "attributeNS" - the start of the attribute or its namespace
+     * * "operator" - the match operator of the attribute
+     * * "value" - The value (string or identifier)
+     * * "insensitive" - the case insensitivity flag;
+     * @param part One of the possible values inside an attribute.
+     * @returns -1 if the name is invalid or the value doesn't exist in this attribute.
+     */
+
+
+    Attribute.prototype.offsetOf = function offsetOf(name) {
+        var count = 1;
+        var attributeSpaces = this._spacesFor("attribute");
+        count += attributeSpaces.before.length;
+        if (name === "namespace" || name === "ns") {
+            return this.namespace ? count : -1;
+        }
+        if (name === "attributeNS") {
+            return count;
+        }
+
+        count += this.namespaceString.length;
+        if (this.namespace) {
+            count += 1;
+        }
+        if (name === "attribute") {
+            return count;
+        }
+
+        count += this.stringifyProperty("attribute").length;
+        count += attributeSpaces.after.length;
+        var operatorSpaces = this._spacesFor("operator");
+        count += operatorSpaces.before.length;
+        var operator = this.stringifyProperty("operator");
+        if (name === "operator") {
+            return operator ? count : -1;
+        }
+
+        count += operator.length;
+        count += operatorSpaces.after.length;
+        var valueSpaces = this._spacesFor("value");
+        count += valueSpaces.before.length;
+        var value = this.stringifyProperty("value");
+        if (name === "value") {
+            return value ? count : -1;
+        }
+
+        count += value.length;
+        count += valueSpaces.after.length;
+        var insensitiveSpaces = this._spacesFor("insensitive");
+        count += insensitiveSpaces.before.length;
+        if (name === "insensitive") {
+            return this.insensitive ? count : -1;
+        }
+        return -1;
+    };
+
+    Attribute.prototype.toString = function toString() {
+        var _this2 = this;
+
+        var selector = [this.rawSpaceBefore, '['];
+
+        selector.push(this._stringFor('qualifiedAttribute', 'attribute'));
+
+        if (this.operator && this.value) {
+            selector.push(this._stringFor('operator'));
+            selector.push(this._stringFor('value'));
+            selector.push(this._stringFor('insensitiveFlag', 'insensitive', function (attrValue, attrSpaces) {
+                if (attrValue.length > 0 && !_this2.quoted && attrSpaces.before.length === 0 && !(_this2.spaces.value && _this2.spaces.value.after)) {
+                    attrSpaces.before = " ";
+                }
+                return defaultAttrConcat(attrValue, attrSpaces);
+            }));
+        }
+
+        selector.push(']');
+        selector.push(this.rawSpaceAfter);
+        return selector.join('');
+    };
+
+    _createClass(Attribute, [{
+        key: "quoted",
+        get: function get() {
+            var qm = this.quoteMark;
+            return qm === "'" || qm === '"';
+        },
+        set: function set(value) {
+            warnOfDeprecatedQuotedAssignment();
+        }
+
+        /**
+         * returns a single (`'`) or double (`"`) quote character if the value is quoted.
+         * returns `null` if the value is not quoted.
+         * returns `undefined` if the quotation state is unknown (this can happen when
+         * the attribute is constructed without specifying a quote mark.)
+         */
+
+    }, {
+        key: "quoteMark",
+        get: function get() {
+            return this._quoteMark;
+        }
+
+        /**
+         * Set the quote mark to be used by this attribute's value.
+         * If the quote mark changes, the raw (escaped) value at `attr.raws.value` of the attribute
+         * value is updated accordingly.
+         *
+         * @param {"'" | '"' | null} quoteMark The quote mark or `null` if the value should be unquoted.
+         */
+        ,
+        set: function set(quoteMark) {
+            if (!this._constructed) {
+                this._quoteMark = quoteMark;
+                return;
+            }
+            if (this._quoteMark !== quoteMark) {
+                this._quoteMark = quoteMark;
+                this._syncRawValue();
+            }
+        }
+    }, {
+        key: "qualifiedAttribute",
+        get: function get() {
+            return this.qualifiedName(this.raws.attribute || this.attribute);
+        }
+    }, {
+        key: "insensitiveFlag",
+        get: function get() {
+            return this.insensitive ? 'i' : '';
+        }
+    }, {
+        key: "value",
+        get: function get() {
+            return this._value;
+        }
+
+        /**
+         * Before 3.0, the value had to be set to an escaped value including any wrapped
+         * quote marks. In 3.0, the semantics of `Attribute.value` changed so that the value
+         * is unescaped during parsing and any quote marks are removed.
+         *
+         * Because the ambiguity of this semantic change, if you set `attr.value = newValue`,
+         * a deprecation warning is raised when the new value contains any characters that would
+         * require escaping (including if it contains wrapped quotes).
+         *
+         * Instead, you should call `attr.setValue(newValue, opts)` and pass options that describe
+         * how the new value is quoted.
+         */
+        ,
+        set: function set(v) {
+            if (this._constructed) {
+                var _unescapeValue2 = unescapeValue(v),
+                    deprecatedUsage = _unescapeValue2.deprecatedUsage,
+                    unescaped = _unescapeValue2.unescaped,
+                    quoteMark = _unescapeValue2.quoteMark;
+
+                if (deprecatedUsage) {
+                    warnOfDeprecatedValueAssignment();
+                }
+                if (unescaped === this._value && quoteMark === this._quoteMark) {
+                    return;
+                }
+                this._value = unescaped;
+                this._quoteMark = quoteMark;
+                this._syncRawValue();
+            } else {
+                this._value = v;
+            }
+        }
+    }, {
+        key: "attribute",
+        get: function get() {
+            return this._attribute;
+        },
+        set: function set(name) {
+            this._handleEscapes("attribute", name);
+            this._attribute = name;
+        }
+    }]);
+
+    return Attribute;
+}(_namespace2.default);
+
+Attribute.NO_QUOTE = null;
+Attribute.SINGLE_QUOTE = "'";
+Attribute.DOUBLE_QUOTE = '"';
+exports.default = Attribute;
+
+
+var CSSESC_QUOTE_OPTIONS = (_CSSESC_QUOTE_OPTIONS = {
+    "'": { quotes: 'single', wrap: true },
+    '"': { quotes: 'double', wrap: true }
+}, _CSSESC_QUOTE_OPTIONS[null] = { isIdentifier: true }, _CSSESC_QUOTE_OPTIONS);
+
+function defaultAttrConcat(attrValue, attrSpaces) {
+    return "" + attrSpaces.before + attrValue + attrSpaces.after;
+}

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/className.js

@@ -0,0 +1,67 @@
+'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 _cssesc = require('cssesc');
+
+var _cssesc2 = _interopRequireDefault(_cssesc);
+
+var _util = require('../util');
+
+var _node = require('./node');
+
+var _node2 = _interopRequireDefault(_node);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var ClassName = function (_Node) {
+    _inherits(ClassName, _Node);
+
+    function ClassName(opts) {
+        _classCallCheck(this, ClassName);
+
+        var _this = _possibleConstructorReturn(this, _Node.call(this, opts));
+
+        _this.type = _types.CLASS;
+        _this._constructed = true;
+        return _this;
+    }
+
+    ClassName.prototype.toString = function toString() {
+        return [this.rawSpaceBefore, String('.' + this.stringifyProperty("value")), this.rawSpaceAfter].join('');
+    };
+
+    _createClass(ClassName, [{
+        key: 'value',
+        set: function set(v) {
+            if (this._constructed) {
+                var escaped = (0, _cssesc2.default)(v, { isIdentifier: true });
+                if (escaped !== v) {
+                    (0, _util.ensureObject)(this, "raws");
+                    this.raws.value = escaped;
+                } else if (this.raws) {
+                    delete this.raws.value;
+                }
+            }
+            this._value = v;
+        },
+        get: function get() {
+            return this._value;
+        }
+    }]);
+
+    return ClassName;
+}(_node2.default);
+
+exports.default = ClassName;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/combinator.js

@@ -0,0 +1,35 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _node = require('./node');
+
+var _node2 = _interopRequireDefault(_node);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var Combinator = function (_Node) {
+    _inherits(Combinator, _Node);
+
+    function Combinator(opts) {
+        _classCallCheck(this, Combinator);
+
+        var _this = _possibleConstructorReturn(this, _Node.call(this, opts));
+
+        _this.type = _types.COMBINATOR;
+        return _this;
+    }
+
+    return Combinator;
+}(_node2.default);
+
+exports.default = Combinator;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/comment.js

@@ -0,0 +1,35 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _node = require('./node');
+
+var _node2 = _interopRequireDefault(_node);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var Comment = function (_Node) {
+    _inherits(Comment, _Node);
+
+    function Comment(opts) {
+        _classCallCheck(this, Comment);
+
+        var _this = _possibleConstructorReturn(this, _Node.call(this, opts));
+
+        _this.type = _types.COMMENT;
+        return _this;
+    }
+
+    return Comment;
+}(_node2.default);
+
+exports.default = Comment;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/constructors.js

@@ -0,0 +1,91 @@
+'use strict';
+
+exports.__esModule = true;
+exports.universal = exports.tag = exports.string = exports.selector = exports.root = exports.pseudo = exports.nesting = exports.id = exports.comment = exports.combinator = exports.className = exports.attribute = undefined;
+
+var _attribute = require('./attribute');
+
+var _attribute2 = _interopRequireDefault(_attribute);
+
+var _className = require('./className');
+
+var _className2 = _interopRequireDefault(_className);
+
+var _combinator = require('./combinator');
+
+var _combinator2 = _interopRequireDefault(_combinator);
+
+var _comment = require('./comment');
+
+var _comment2 = _interopRequireDefault(_comment);
+
+var _id = require('./id');
+
+var _id2 = _interopRequireDefault(_id);
+
+var _nesting = require('./nesting');
+
+var _nesting2 = _interopRequireDefault(_nesting);
+
+var _pseudo = require('./pseudo');
+
+var _pseudo2 = _interopRequireDefault(_pseudo);
+
+var _root = require('./root');
+
+var _root2 = _interopRequireDefault(_root);
+
+var _selector = require('./selector');
+
+var _selector2 = _interopRequireDefault(_selector);
+
+var _string = require('./string');
+
+var _string2 = _interopRequireDefault(_string);
+
+var _tag = require('./tag');
+
+var _tag2 = _interopRequireDefault(_tag);
+
+var _universal = require('./universal');
+
+var _universal2 = _interopRequireDefault(_universal);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var attribute = exports.attribute = function attribute(opts) {
+  return new _attribute2.default(opts);
+};
+var className = exports.className = function className(opts) {
+  return new _className2.default(opts);
+};
+var combinator = exports.combinator = function combinator(opts) {
+  return new _combinator2.default(opts);
+};
+var comment = exports.comment = function comment(opts) {
+  return new _comment2.default(opts);
+};
+var id = exports.id = function id(opts) {
+  return new _id2.default(opts);
+};
+var nesting = exports.nesting = function nesting(opts) {
+  return new _nesting2.default(opts);
+};
+var pseudo = exports.pseudo = function pseudo(opts) {
+  return new _pseudo2.default(opts);
+};
+var root = exports.root = function root(opts) {
+  return new _root2.default(opts);
+};
+var selector = exports.selector = function selector(opts) {
+  return new _selector2.default(opts);
+};
+var string = exports.string = function string(opts) {
+  return new _string2.default(opts);
+};
+var tag = exports.tag = function tag(opts) {
+  return new _tag2.default(opts);
+};
+var universal = exports.universal = function universal(opts) {
+  return new _universal2.default(opts);
+};

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/container.js

@@ -0,0 +1,392 @@
+'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 _node = require('./node');
+
+var _node2 = _interopRequireDefault(_node);
+
+var _types = require('./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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var Container = function (_Node) {
+    _inherits(Container, _Node);
+
+    function Container(opts) {
+        _classCallCheck(this, Container);
+
+        var _this = _possibleConstructorReturn(this, _Node.call(this, opts));
+
+        if (!_this.nodes) {
+            _this.nodes = [];
+        }
+        return _this;
+    }
+
+    Container.prototype.append = function append(selector) {
+        selector.parent = this;
+        this.nodes.push(selector);
+        return this;
+    };
+
+    Container.prototype.prepend = function prepend(selector) {
+        selector.parent = this;
+        this.nodes.unshift(selector);
+        return this;
+    };
+
+    Container.prototype.at = function at(index) {
+        return this.nodes[index];
+    };
+
+    Container.prototype.index = function index(child) {
+        if (typeof child === 'number') {
+            return child;
+        }
+        return this.nodes.indexOf(child);
+    };
+
+    Container.prototype.removeChild = function removeChild(child) {
+        child = this.index(child);
+        this.at(child).parent = undefined;
+        this.nodes.splice(child, 1);
+
+        var index = void 0;
+        for (var id in this.indexes) {
+            index = this.indexes[id];
+            if (index >= child) {
+                this.indexes[id] = index - 1;
+            }
+        }
+
+        return this;
+    };
+
+    Container.prototype.removeAll = function removeAll() {
+        for (var _iterator = this.nodes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
+            var _ref;
+
+            if (_isArray) {
+                if (_i >= _iterator.length) break;
+                _ref = _iterator[_i++];
+            } else {
+                _i = _iterator.next();
+                if (_i.done) break;
+                _ref = _i.value;
+            }
+
+            var node = _ref;
+
+            node.parent = undefined;
+        }
+        this.nodes = [];
+        return this;
+    };
+
+    Container.prototype.empty = function empty() {
+        return this.removeAll();
+    };
+
+    Container.prototype.insertAfter = function insertAfter(oldNode, newNode) {
+        newNode.parent = this;
+        var oldIndex = this.index(oldNode);
+        this.nodes.splice(oldIndex + 1, 0, newNode);
+
+        newNode.parent = this;
+
+        var index = void 0;
+        for (var id in this.indexes) {
+            index = this.indexes[id];
+            if (oldIndex <= index) {
+                this.indexes[id] = index + 1;
+            }
+        }
+
+        return this;
+    };
+
+    Container.prototype.insertBefore = function insertBefore(oldNode, newNode) {
+        newNode.parent = this;
+        var oldIndex = this.index(oldNode);
+        this.nodes.splice(oldIndex, 0, newNode);
+
+        newNode.parent = this;
+
+        var index = void 0;
+        for (var id in this.indexes) {
+            index = this.indexes[id];
+            if (index <= oldIndex) {
+                this.indexes[id] = index + 1;
+            }
+        }
+
+        return this;
+    };
+
+    Container.prototype._findChildAtPosition = function _findChildAtPosition(line, col) {
+        var found = undefined;
+        this.each(function (node) {
+            if (node.atPosition) {
+                var foundChild = node.atPosition(line, col);
+                if (foundChild) {
+                    found = foundChild;
+                    return false;
+                }
+            } else if (node.isAtPosition(line, col)) {
+                found = node;
+                return false;
+            }
+        });
+        return found;
+    };
+
+    /**
+     * Return the most specific node at the line and column number given.
+     * The source location is based on the original parsed location, locations aren't
+     * updated as selector nodes are mutated.
+     * 
+     * Note that this location is relative to the location of the first character
+     * of the selector, and not the location of the selector in the overall document
+     * when used in conjunction with postcss.
+     *
+     * If not found, returns undefined.
+     * @param {number} line The line number of the node to find. (1-based index)
+     * @param {number} col  The column number of the node to find. (1-based index)
+     */
+
+
+    Container.prototype.atPosition = function atPosition(line, col) {
+        if (this.isAtPosition(line, col)) {
+            return this._findChildAtPosition(line, col) || this;
+        } else {
+            return undefined;
+        }
+    };
+
+    Container.prototype._inferEndPosition = function _inferEndPosition() {
+        if (this.last && this.last.source && this.last.source.end) {
+            this.source = this.source || {};
+            this.source.end = this.source.end || {};
+            Object.assign(this.source.end, this.last.source.end);
+        }
+    };
+
+    Container.prototype.each = function each(callback) {
+        if (!this.lastEach) {
+            this.lastEach = 0;
+        }
+        if (!this.indexes) {
+            this.indexes = {};
+        }
+
+        this.lastEach++;
+        var id = this.lastEach;
+        this.indexes[id] = 0;
+
+        if (!this.length) {
+            return undefined;
+        }
+
+        var index = void 0,
+            result = void 0;
+        while (this.indexes[id] < this.length) {
+            index = this.indexes[id];
+            result = callback(this.at(index), index);
+            if (result === false) {
+                break;
+            }
+
+            this.indexes[id] += 1;
+        }
+
+        delete this.indexes[id];
+
+        if (result === false) {
+            return false;
+        }
+    };
+
+    Container.prototype.walk = function walk(callback) {
+        return this.each(function (node, i) {
+            var result = callback(node, i);
+
+            if (result !== false && node.length) {
+                result = node.walk(callback);
+            }
+
+            if (result === false) {
+                return false;
+            }
+        });
+    };
+
+    Container.prototype.walkAttributes = function walkAttributes(callback) {
+        var _this2 = this;
+
+        return this.walk(function (selector) {
+            if (selector.type === types.ATTRIBUTE) {
+                return callback.call(_this2, selector);
+            }
+        });
+    };
+
+    Container.prototype.walkClasses = function walkClasses(callback) {
+        var _this3 = this;
+
+        return this.walk(function (selector) {
+            if (selector.type === types.CLASS) {
+                return callback.call(_this3, selector);
+            }
+        });
+    };
+
+    Container.prototype.walkCombinators = function walkCombinators(callback) {
+        var _this4 = this;
+
+        return this.walk(function (selector) {
+            if (selector.type === types.COMBINATOR) {
+                return callback.call(_this4, selector);
+            }
+        });
+    };
+
+    Container.prototype.walkComments = function walkComments(callback) {
+        var _this5 = this;
+
+        return this.walk(function (selector) {
+            if (selector.type === types.COMMENT) {
+                return callback.call(_this5, selector);
+            }
+        });
+    };
+
+    Container.prototype.walkIds = function walkIds(callback) {
+        var _this6 = this;
+
+        return this.walk(function (selector) {
+            if (selector.type === types.ID) {
+                return callback.call(_this6, selector);
+            }
+        });
+    };
+
+    Container.prototype.walkNesting = function walkNesting(callback) {
+        var _this7 = this;
+
+        return this.walk(function (selector) {
+            if (selector.type === types.NESTING) {
+                return callback.call(_this7, selector);
+            }
+        });
+    };
+
+    Container.prototype.walkPseudos = function walkPseudos(callback) {
+        var _this8 = this;
+
+        return this.walk(function (selector) {
+            if (selector.type === types.PSEUDO) {
+                return callback.call(_this8, selector);
+            }
+        });
+    };
+
+    Container.prototype.walkTags = function walkTags(callback) {
+        var _this9 = this;
+
+        return this.walk(function (selector) {
+            if (selector.type === types.TAG) {
+                return callback.call(_this9, selector);
+            }
+        });
+    };
+
+    Container.prototype.walkUniversals = function walkUniversals(callback) {
+        var _this10 = this;
+
+        return this.walk(function (selector) {
+            if (selector.type === types.UNIVERSAL) {
+                return callback.call(_this10, selector);
+            }
+        });
+    };
+
+    Container.prototype.split = function split(callback) {
+        var _this11 = this;
+
+        var current = [];
+        return this.reduce(function (memo, node, index) {
+            var split = callback.call(_this11, node);
+            current.push(node);
+            if (split) {
+                memo.push(current);
+                current = [];
+            } else if (index === _this11.length - 1) {
+                memo.push(current);
+            }
+            return memo;
+        }, []);
+    };
+
+    Container.prototype.map = function map(callback) {
+        return this.nodes.map(callback);
+    };
+
+    Container.prototype.reduce = function reduce(callback, memo) {
+        return this.nodes.reduce(callback, memo);
+    };
+
+    Container.prototype.every = function every(callback) {
+        return this.nodes.every(callback);
+    };
+
+    Container.prototype.some = function some(callback) {
+        return this.nodes.some(callback);
+    };
+
+    Container.prototype.filter = function filter(callback) {
+        return this.nodes.filter(callback);
+    };
+
+    Container.prototype.sort = function sort(callback) {
+        return this.nodes.sort(callback);
+    };
+
+    Container.prototype.toString = function toString() {
+        return this.map(String).join('');
+    };
+
+    _createClass(Container, [{
+        key: 'first',
+        get: function get() {
+            return this.at(0);
+        }
+    }, {
+        key: 'last',
+        get: function get() {
+            return this.at(this.length - 1);
+        }
+    }, {
+        key: 'length',
+        get: function get() {
+            return this.nodes.length;
+        }
+    }]);
+
+    return Container;
+}(_node2.default);
+
+exports.default = Container;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/guards.js

@@ -0,0 +1,54 @@
+"use strict";
+
+exports.__esModule = true;
+exports.isUniversal = exports.isTag = exports.isString = exports.isSelector = exports.isRoot = exports.isPseudo = exports.isNesting = exports.isIdentifier = exports.isComment = exports.isCombinator = exports.isClassName = exports.isAttribute = undefined;
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+var _IS_TYPE;
+
+exports.isNode = isNode;
+exports.isPseudoElement = isPseudoElement;
+exports.isPseudoClass = isPseudoClass;
+exports.isContainer = isContainer;
+exports.isNamespace = isNamespace;
+
+var _types = require("./types");
+
+var IS_TYPE = (_IS_TYPE = {}, _IS_TYPE[_types.ATTRIBUTE] = true, _IS_TYPE[_types.CLASS] = true, _IS_TYPE[_types.COMBINATOR] = true, _IS_TYPE[_types.COMMENT] = true, _IS_TYPE[_types.ID] = true, _IS_TYPE[_types.NESTING] = true, _IS_TYPE[_types.PSEUDO] = true, _IS_TYPE[_types.ROOT] = true, _IS_TYPE[_types.SELECTOR] = true, _IS_TYPE[_types.STRING] = true, _IS_TYPE[_types.TAG] = true, _IS_TYPE[_types.UNIVERSAL] = true, _IS_TYPE);
+
+function isNode(node) {
+    return (typeof node === "undefined" ? "undefined" : _typeof(node)) === "object" && IS_TYPE[node.type];
+}
+
+function isNodeType(type, node) {
+    return isNode(node) && node.type === type;
+}
+
+var isAttribute = exports.isAttribute = isNodeType.bind(null, _types.ATTRIBUTE);
+var isClassName = exports.isClassName = isNodeType.bind(null, _types.CLASS);
+var isCombinator = exports.isCombinator = isNodeType.bind(null, _types.COMBINATOR);
+var isComment = exports.isComment = isNodeType.bind(null, _types.COMMENT);
+var isIdentifier = exports.isIdentifier = isNodeType.bind(null, _types.ID);
+var isNesting = exports.isNesting = isNodeType.bind(null, _types.NESTING);
+var isPseudo = exports.isPseudo = isNodeType.bind(null, _types.PSEUDO);
+var isRoot = exports.isRoot = isNodeType.bind(null, _types.ROOT);
+var isSelector = exports.isSelector = isNodeType.bind(null, _types.SELECTOR);
+var isString = exports.isString = isNodeType.bind(null, _types.STRING);
+var isTag = exports.isTag = isNodeType.bind(null, _types.TAG);
+var isUniversal = exports.isUniversal = isNodeType.bind(null, _types.UNIVERSAL);
+
+function isPseudoElement(node) {
+    return isPseudo(node) && node.value && (node.value.startsWith("::") || node.value === ":before" || node.value === ":after");
+}
+function isPseudoClass(node) {
+    return isPseudo(node) && !isPseudoElement(node);
+}
+
+function isContainer(node) {
+    return !!(isNode(node) && node.walk);
+}
+
+function isNamespace(node) {
+    return isAttribute(node) || isTag(node);
+}

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/id.js

@@ -0,0 +1,39 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _node = require('./node');
+
+var _node2 = _interopRequireDefault(_node);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var ID = function (_Node) {
+    _inherits(ID, _Node);
+
+    function ID(opts) {
+        _classCallCheck(this, ID);
+
+        var _this = _possibleConstructorReturn(this, _Node.call(this, opts));
+
+        _this.type = _types.ID;
+        return _this;
+    }
+
+    ID.prototype.toString = function toString() {
+        return [this.rawSpaceBefore, String('#' + this.stringifyProperty("value")), this.rawSpaceAfter].join('');
+    };
+
+    return ID;
+}(_node2.default);
+
+exports.default = ID;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/index.js

@@ -0,0 +1,39 @@
+"use strict";
+
+exports.__esModule = true;
+
+var _types = require("./types");
+
+Object.keys(_types).forEach(function (key) {
+  if (key === "default" || key === "__esModule") return;
+  Object.defineProperty(exports, key, {
+    enumerable: true,
+    get: function get() {
+      return _types[key];
+    }
+  });
+});
+
+var _constructors = require("./constructors");
+
+Object.keys(_constructors).forEach(function (key) {
+  if (key === "default" || key === "__esModule") return;
+  Object.defineProperty(exports, key, {
+    enumerable: true,
+    get: function get() {
+      return _constructors[key];
+    }
+  });
+});
+
+var _guards = require("./guards");
+
+Object.keys(_guards).forEach(function (key) {
+  if (key === "default" || key === "__esModule") return;
+  Object.defineProperty(exports, key, {
+    enumerable: true,
+    get: function get() {
+      return _guards[key];
+    }
+  });
+});

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/namespace.js

@@ -0,0 +1,98 @@
+'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 _cssesc = require('cssesc');
+
+var _cssesc2 = _interopRequireDefault(_cssesc);
+
+var _util = require('../util');
+
+var _node = require('./node');
+
+var _node2 = _interopRequireDefault(_node);
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var Namespace = function (_Node) {
+    _inherits(Namespace, _Node);
+
+    function Namespace() {
+        _classCallCheck(this, Namespace);
+
+        return _possibleConstructorReturn(this, _Node.apply(this, arguments));
+    }
+
+    Namespace.prototype.qualifiedName = function qualifiedName(value) {
+        if (this.namespace) {
+            return this.namespaceString + '|' + value;
+        } else {
+            return value;
+        }
+    };
+
+    Namespace.prototype.toString = function toString() {
+        return [this.rawSpaceBefore, this.qualifiedName(this.stringifyProperty("value")), this.rawSpaceAfter].join('');
+    };
+
+    _createClass(Namespace, [{
+        key: 'namespace',
+        get: function get() {
+            return this._namespace;
+        },
+        set: function set(namespace) {
+            if (namespace === true || namespace === "*" || namespace === "&") {
+                this._namespace = namespace;
+                if (this.raws) {
+                    delete this.raws.namespace;
+                }
+                return;
+            }
+
+            var escaped = (0, _cssesc2.default)(namespace, { isIdentifier: true });
+            this._namespace = namespace;
+            if (escaped !== namespace) {
+                (0, _util.ensureObject)(this, "raws");
+                this.raws.namespace = escaped;
+            } else if (this.raws) {
+                delete this.raws.namespace;
+            }
+        }
+    }, {
+        key: 'ns',
+        get: function get() {
+            return this._namespace;
+        },
+        set: function set(namespace) {
+            this.namespace = namespace;
+        }
+    }, {
+        key: 'namespaceString',
+        get: function get() {
+            if (this.namespace) {
+                var ns = this.stringifyProperty("namespace");
+                if (ns === true) {
+                    return '';
+                } else {
+                    return ns;
+                }
+            } else {
+                return '';
+            }
+        }
+    }]);
+
+    return Namespace;
+}(_node2.default);
+
+exports.default = Namespace;
+;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/nesting.js

@@ -0,0 +1,36 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _node = require('./node');
+
+var _node2 = _interopRequireDefault(_node);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var Nesting = function (_Node) {
+    _inherits(Nesting, _Node);
+
+    function Nesting(opts) {
+        _classCallCheck(this, Nesting);
+
+        var _this = _possibleConstructorReturn(this, _Node.call(this, opts));
+
+        _this.type = _types.NESTING;
+        _this.value = '&';
+        return _this;
+    }
+
+    return Nesting;
+}(_node2.default);
+
+exports.default = Nesting;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/node.js

@@ -0,0 +1,216 @@
+'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 _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+var _util = require('../util');
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var cloneNode = function cloneNode(obj, parent) {
+    if ((typeof obj === 'undefined' ? 'undefined' : _typeof(obj)) !== 'object' || obj === null) {
+        return obj;
+    }
+
+    var cloned = new obj.constructor();
+
+    for (var i in obj) {
+        if (!obj.hasOwnProperty(i)) {
+            continue;
+        }
+        var value = obj[i];
+        var type = typeof value === 'undefined' ? 'undefined' : _typeof(value);
+
+        if (i === 'parent' && type === 'object') {
+            if (parent) {
+                cloned[i] = parent;
+            }
+        } else if (value instanceof Array) {
+            cloned[i] = value.map(function (j) {
+                return cloneNode(j, cloned);
+            });
+        } else {
+            cloned[i] = cloneNode(value, cloned);
+        }
+    }
+
+    return cloned;
+};
+
+var Node = function () {
+    function Node() {
+        var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+        _classCallCheck(this, Node);
+
+        Object.assign(this, opts);
+        this.spaces = this.spaces || {};
+        this.spaces.before = this.spaces.before || '';
+        this.spaces.after = this.spaces.after || '';
+    }
+
+    Node.prototype.remove = function remove() {
+        if (this.parent) {
+            this.parent.removeChild(this);
+        }
+        this.parent = undefined;
+        return this;
+    };
+
+    Node.prototype.replaceWith = function replaceWith() {
+        if (this.parent) {
+            for (var index in arguments) {
+                this.parent.insertBefore(this, arguments[index]);
+            }
+            this.remove();
+        }
+        return this;
+    };
+
+    Node.prototype.next = function next() {
+        return this.parent.at(this.parent.index(this) + 1);
+    };
+
+    Node.prototype.prev = function prev() {
+        return this.parent.at(this.parent.index(this) - 1);
+    };
+
+    Node.prototype.clone = function clone() {
+        var overrides = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+        var cloned = cloneNode(this);
+        for (var name in overrides) {
+            cloned[name] = overrides[name];
+        }
+        return cloned;
+    };
+
+    /**
+     * Some non-standard syntax doesn't follow normal escaping rules for css.
+     * This allows non standard syntax to be appended to an existing property
+     * by specifying the escaped value. By specifying the escaped value,
+     * illegal characters are allowed to be directly inserted into css output.
+     * @param {string} name the property to set
+     * @param {any} value the unescaped value of the property
+     * @param {string} valueEscaped optional. the escaped value of the property.
+     */
+
+
+    Node.prototype.appendToPropertyAndEscape = function appendToPropertyAndEscape(name, value, valueEscaped) {
+        if (!this.raws) {
+            this.raws = {};
+        }
+        var originalValue = this[name];
+        var originalEscaped = this.raws[name];
+        this[name] = originalValue + value; // this may trigger a setter that updates raws, so it has to be set first.
+        if (originalEscaped || valueEscaped !== value) {
+            this.raws[name] = (originalEscaped || originalValue) + valueEscaped;
+        } else {
+            delete this.raws[name]; // delete any escaped value that was created by the setter.
+        }
+    };
+
+    /**
+     * Some non-standard syntax doesn't follow normal escaping rules for css.
+     * This allows the escaped value to be specified directly, allowing illegal
+     * characters to be directly inserted into css output.
+     * @param {string} name the property to set
+     * @param {any} value the unescaped value of the property
+     * @param {string} valueEscaped the escaped value of the property.
+     */
+
+
+    Node.prototype.setPropertyAndEscape = function setPropertyAndEscape(name, value, valueEscaped) {
+        if (!this.raws) {
+            this.raws = {};
+        }
+        this[name] = value; // this may trigger a setter that updates raws, so it has to be set first.
+        this.raws[name] = valueEscaped;
+    };
+
+    /**
+     * When you want a value to passed through to CSS directly. This method
+     * deletes the corresponding raw value causing the stringifier to fallback
+     * to the unescaped value.
+     * @param {string} name the property to set.
+     * @param {any} value The value that is both escaped and unescaped.
+     */
+
+
+    Node.prototype.setPropertyWithoutEscape = function setPropertyWithoutEscape(name, value) {
+        this[name] = value; // this may trigger a setter that updates raws, so it has to be set first.
+        if (this.raws) {
+            delete this.raws[name];
+        }
+    };
+
+    /**
+     * 
+     * @param {number} line The number (starting with 1)
+     * @param {number} column The column number (starting with 1)
+     */
+
+
+    Node.prototype.isAtPosition = function isAtPosition(line, column) {
+        if (this.source && this.source.start && this.source.end) {
+            if (this.source.start.line > line) {
+                return false;
+            }
+            if (this.source.end.line < line) {
+                return false;
+            }
+            if (this.source.start.line === line && this.source.start.column > column) {
+                return false;
+            }
+            if (this.source.end.line === line && this.source.end.column < column) {
+                return false;
+            }
+            return true;
+        }
+        return undefined;
+    };
+
+    Node.prototype.stringifyProperty = function stringifyProperty(name) {
+        return this.raws && this.raws[name] || this[name];
+    };
+
+    Node.prototype.toString = function toString() {
+        return [this.rawSpaceBefore, String(this.stringifyProperty("value")), this.rawSpaceAfter].join('');
+    };
+
+    _createClass(Node, [{
+        key: 'rawSpaceBefore',
+        get: function get() {
+            var rawSpace = this.raws && this.raws.spaces && this.raws.spaces.before;
+            if (rawSpace === undefined) {
+                rawSpace = this.spaces && this.spaces.before;
+            }
+            return rawSpace || "";
+        },
+        set: function set(raw) {
+            (0, _util.ensureObject)(this, "raws", "spaces");
+            this.raws.spaces.before = raw;
+        }
+    }, {
+        key: 'rawSpaceAfter',
+        get: function get() {
+            var rawSpace = this.raws && this.raws.spaces && this.raws.spaces.after;
+            if (rawSpace === undefined) {
+                rawSpace = this.spaces.after;
+            }
+            return rawSpace || "";
+        },
+        set: function set(raw) {
+            (0, _util.ensureObject)(this, "raws", "spaces");
+            this.raws.spaces.after = raw;
+        }
+    }]);
+
+    return Node;
+}();
+
+exports.default = Node;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/pseudo.js

@@ -0,0 +1,40 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _container = require('./container');
+
+var _container2 = _interopRequireDefault(_container);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var Pseudo = function (_Container) {
+    _inherits(Pseudo, _Container);
+
+    function Pseudo(opts) {
+        _classCallCheck(this, Pseudo);
+
+        var _this = _possibleConstructorReturn(this, _Container.call(this, opts));
+
+        _this.type = _types.PSEUDO;
+        return _this;
+    }
+
+    Pseudo.prototype.toString = function toString() {
+        var params = this.length ? '(' + this.map(String).join(',') + ')' : '';
+        return [this.rawSpaceBefore, this.stringifyProperty("value"), params, this.rawSpaceAfter].join('');
+    };
+
+    return Pseudo;
+}(_container2.default);
+
+exports.default = Pseudo;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/root.js

@@ -0,0 +1,60 @@
+'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 _container = require('./container');
+
+var _container2 = _interopRequireDefault(_container);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var Root = function (_Container) {
+    _inherits(Root, _Container);
+
+    function Root(opts) {
+        _classCallCheck(this, Root);
+
+        var _this = _possibleConstructorReturn(this, _Container.call(this, opts));
+
+        _this.type = _types.ROOT;
+        return _this;
+    }
+
+    Root.prototype.toString = function toString() {
+        var str = this.reduce(function (memo, selector) {
+            memo.push(String(selector));
+            return memo;
+        }, []).join(',');
+        return this.trailingComma ? str + ',' : str;
+    };
+
+    Root.prototype.error = function error(message, options) {
+        if (this._error) {
+            return this._error(message, options);
+        } else {
+            return new Error(message);
+        }
+    };
+
+    _createClass(Root, [{
+        key: 'errorGenerator',
+        set: function set(handler) {
+            this._error = handler;
+        }
+    }]);
+
+    return Root;
+}(_container2.default);
+
+exports.default = Root;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/selector.js

@@ -0,0 +1,35 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _container = require('./container');
+
+var _container2 = _interopRequireDefault(_container);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var Selector = function (_Container) {
+    _inherits(Selector, _Container);
+
+    function Selector(opts) {
+        _classCallCheck(this, Selector);
+
+        var _this = _possibleConstructorReturn(this, _Container.call(this, opts));
+
+        _this.type = _types.SELECTOR;
+        return _this;
+    }
+
+    return Selector;
+}(_container2.default);
+
+exports.default = Selector;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/string.js

@@ -0,0 +1,35 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _node = require('./node');
+
+var _node2 = _interopRequireDefault(_node);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var String = function (_Node) {
+    _inherits(String, _Node);
+
+    function String(opts) {
+        _classCallCheck(this, String);
+
+        var _this = _possibleConstructorReturn(this, _Node.call(this, opts));
+
+        _this.type = _types.STRING;
+        return _this;
+    }
+
+    return String;
+}(_node2.default);
+
+exports.default = String;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/tag.js

@@ -0,0 +1,35 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _namespace = require('./namespace');
+
+var _namespace2 = _interopRequireDefault(_namespace);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var Tag = function (_Namespace) {
+    _inherits(Tag, _Namespace);
+
+    function Tag(opts) {
+        _classCallCheck(this, Tag);
+
+        var _this = _possibleConstructorReturn(this, _Namespace.call(this, opts));
+
+        _this.type = _types.TAG;
+        return _this;
+    }
+
+    return Tag;
+}(_namespace2.default);
+
+exports.default = Tag;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/types.js

@@ -0,0 +1,15 @@
+'use strict';
+
+exports.__esModule = true;
+var TAG = exports.TAG = 'tag';
+var STRING = exports.STRING = 'string';
+var SELECTOR = exports.SELECTOR = 'selector';
+var ROOT = exports.ROOT = 'root';
+var PSEUDO = exports.PSEUDO = 'pseudo';
+var NESTING = exports.NESTING = 'nesting';
+var ID = exports.ID = 'id';
+var COMMENT = exports.COMMENT = 'comment';
+var COMBINATOR = exports.COMBINATOR = 'combinator';
+var CLASS = exports.CLASS = 'class';
+var ATTRIBUTE = exports.ATTRIBUTE = 'attribute';
+var UNIVERSAL = exports.UNIVERSAL = 'universal';

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/selectors/universal.js

@@ -0,0 +1,36 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _namespace = require('./namespace');
+
+var _namespace2 = _interopRequireDefault(_namespace);
+
+var _types = require('./types');
+
+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 _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var Universal = function (_Namespace) {
+    _inherits(Universal, _Namespace);
+
+    function Universal(opts) {
+        _classCallCheck(this, Universal);
+
+        var _this = _possibleConstructorReturn(this, _Namespace.call(this, opts));
+
+        _this.type = _types.UNIVERSAL;
+        _this.value = '*';
+        return _this;
+    }
+
+    return Universal;
+}(_namespace2.default);
+
+exports.default = Universal;
+module.exports = exports['default'];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/sortAscending.js

@@ -0,0 +1,10 @@
+"use strict";
+
+exports.__esModule = true;
+exports.default = sortAscending;
+function sortAscending(list) {
+    return list.sort(function (a, b) {
+        return a - b;
+    });
+};
+module.exports = exports["default"];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/tokenTypes.js

@@ -0,0 +1,39 @@
+'use strict';
+
+exports.__esModule = true;
+var ampersand = exports.ampersand = 38;
+var asterisk = exports.asterisk = 42;
+var at = exports.at = 64;
+var comma = exports.comma = 44;
+var colon = exports.colon = 58;
+var semicolon = exports.semicolon = 59;
+var openParenthesis = exports.openParenthesis = 40;
+var closeParenthesis = exports.closeParenthesis = 41;
+var openSquare = exports.openSquare = 91;
+var closeSquare = exports.closeSquare = 93;
+var dollar = exports.dollar = 36;
+var tilde = exports.tilde = 126;
+var caret = exports.caret = 94;
+var plus = exports.plus = 43;
+var equals = exports.equals = 61;
+var pipe = exports.pipe = 124;
+var greaterThan = exports.greaterThan = 62;
+var space = exports.space = 32;
+var singleQuote = exports.singleQuote = 39;
+var doubleQuote = exports.doubleQuote = 34;
+var slash = exports.slash = 47;
+var bang = exports.bang = 33;
+
+var backslash = exports.backslash = 92;
+var cr = exports.cr = 13;
+var feed = exports.feed = 12;
+var newline = exports.newline = 10;
+var tab = exports.tab = 9;
+
+// Expose aliases primarily for readability.
+var str = exports.str = singleQuote;
+
+// No good single character representation!
+var comment = exports.comment = -1;
+var word = exports.word = -2;
+var combinator = exports.combinator = -3;

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/tokenize.js

@@ -0,0 +1,271 @@
+'use strict';
+
+exports.__esModule = true;
+exports.FIELDS = undefined;
+
+var _unescapable, _wordDelimiters;
+
+exports.default = tokenize;
+
+var _tokenTypes = require('./tokenTypes');
+
+var t = _interopRequireWildcard(_tokenTypes);
+
+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; } }
+
+var unescapable = (_unescapable = {}, _unescapable[t.tab] = true, _unescapable[t.newline] = true, _unescapable[t.cr] = true, _unescapable[t.feed] = true, _unescapable);
+var wordDelimiters = (_wordDelimiters = {}, _wordDelimiters[t.space] = true, _wordDelimiters[t.tab] = true, _wordDelimiters[t.newline] = true, _wordDelimiters[t.cr] = true, _wordDelimiters[t.feed] = true, _wordDelimiters[t.ampersand] = true, _wordDelimiters[t.asterisk] = true, _wordDelimiters[t.bang] = true, _wordDelimiters[t.comma] = true, _wordDelimiters[t.colon] = true, _wordDelimiters[t.semicolon] = true, _wordDelimiters[t.openParenthesis] = true, _wordDelimiters[t.closeParenthesis] = true, _wordDelimiters[t.openSquare] = true, _wordDelimiters[t.closeSquare] = true, _wordDelimiters[t.singleQuote] = true, _wordDelimiters[t.doubleQuote] = true, _wordDelimiters[t.plus] = true, _wordDelimiters[t.pipe] = true, _wordDelimiters[t.tilde] = true, _wordDelimiters[t.greaterThan] = true, _wordDelimiters[t.equals] = true, _wordDelimiters[t.dollar] = true, _wordDelimiters[t.caret] = true, _wordDelimiters[t.slash] = true, _wordDelimiters);
+
+var hex = {};
+var hexChars = "0123456789abcdefABCDEF";
+for (var i = 0; i < hexChars.length; i++) {
+    hex[hexChars.charCodeAt(i)] = true;
+}
+
+/**
+ *  Returns the last index of the bar css word
+ * @param {string} css The string in which the word begins
+ * @param {number} start The index into the string where word's first letter occurs
+ */
+function consumeWord(css, start) {
+    var next = start;
+    var code = void 0;
+    do {
+        code = css.charCodeAt(next);
+        if (wordDelimiters[code]) {
+            return next - 1;
+        } else if (code === t.backslash) {
+            next = consumeEscape(css, next) + 1;
+        } else {
+            // All other characters are part of the word
+            next++;
+        }
+    } while (next < css.length);
+    return next - 1;
+}
+
+/**
+ *  Returns the last index of the escape sequence
+ * @param {string} css The string in which the sequence begins
+ * @param {number} start The index into the string where escape character (`\`) occurs.
+ */
+function consumeEscape(css, start) {
+    var next = start;
+    var code = css.charCodeAt(next + 1);
+    if (unescapable[code]) {
+        // just consume the escape char
+    } else if (hex[code]) {
+        var hexDigits = 0;
+        // consume up to 6 hex chars
+        do {
+            next++;
+            hexDigits++;
+            code = css.charCodeAt(next + 1);
+        } while (hex[code] && hexDigits < 6);
+        // if fewer than 6 hex chars, a trailing space ends the escape
+        if (hexDigits < 6 && code === t.space) {
+            next++;
+        }
+    } else {
+        // the next char is part of the current word
+        next++;
+    }
+    return next;
+}
+
+var FIELDS = exports.FIELDS = {
+    TYPE: 0,
+    START_LINE: 1,
+    START_COL: 2,
+    END_LINE: 3,
+    END_COL: 4,
+    START_POS: 5,
+    END_POS: 6
+};
+
+function tokenize(input) {
+    var tokens = [];
+    var css = input.css.valueOf();
+    var _css = css,
+        length = _css.length;
+
+    var offset = -1;
+    var line = 1;
+    var start = 0;
+    var end = 0;
+
+    var code = void 0,
+        content = void 0,
+        endColumn = void 0,
+        endLine = void 0,
+        escaped = void 0,
+        escapePos = void 0,
+        last = void 0,
+        lines = void 0,
+        next = void 0,
+        nextLine = void 0,
+        nextOffset = void 0,
+        quote = void 0,
+        tokenType = void 0;
+
+    function unclosed(what, fix) {
+        if (input.safe) {
+            // fyi: this is never set to true.
+            css += fix;
+            next = css.length - 1;
+        } else {
+            throw input.error('Unclosed ' + what, line, start - offset, start);
+        }
+    }
+
+    while (start < length) {
+        code = css.charCodeAt(start);
+
+        if (code === t.newline) {
+            offset = start;
+            line += 1;
+        }
+
+        switch (code) {
+            case t.space:
+            case t.tab:
+            case t.newline:
+            case t.cr:
+            case t.feed:
+                next = start;
+                do {
+                    next += 1;
+                    code = css.charCodeAt(next);
+                    if (code === t.newline) {
+                        offset = next;
+                        line += 1;
+                    }
+                } while (code === t.space || code === t.newline || code === t.tab || code === t.cr || code === t.feed);
+
+                tokenType = t.space;
+                endLine = line;
+                endColumn = next - offset - 1;
+                end = next;
+                break;
+
+            case t.plus:
+            case t.greaterThan:
+            case t.tilde:
+            case t.pipe:
+                next = start;
+                do {
+                    next += 1;
+                    code = css.charCodeAt(next);
+                } while (code === t.plus || code === t.greaterThan || code === t.tilde || code === t.pipe);
+
+                tokenType = t.combinator;
+                endLine = line;
+                endColumn = start - offset;
+                end = next;
+                break;
+
+            // Consume these characters as single tokens.
+            case t.asterisk:
+            case t.ampersand:
+            case t.bang:
+            case t.comma:
+            case t.equals:
+            case t.dollar:
+            case t.caret:
+            case t.openSquare:
+            case t.closeSquare:
+            case t.colon:
+            case t.semicolon:
+            case t.openParenthesis:
+            case t.closeParenthesis:
+                next = start;
+                tokenType = code;
+                endLine = line;
+                endColumn = start - offset;
+                end = next + 1;
+                break;
+
+            case t.singleQuote:
+            case t.doubleQuote:
+                quote = code === t.singleQuote ? "'" : '"';
+                next = start;
+                do {
+                    escaped = false;
+                    next = css.indexOf(quote, next + 1);
+                    if (next === -1) {
+                        unclosed('quote', quote);
+                    }
+                    escapePos = next;
+                    while (css.charCodeAt(escapePos - 1) === t.backslash) {
+                        escapePos -= 1;
+                        escaped = !escaped;
+                    }
+                } while (escaped);
+
+                tokenType = t.str;
+                endLine = line;
+                endColumn = start - offset;
+                end = next + 1;
+                break;
+
+            default:
+                if (code === t.slash && css.charCodeAt(start + 1) === t.asterisk) {
+                    next = css.indexOf('*/', start + 2) + 1;
+                    if (next === 0) {
+                        unclosed('comment', '*/');
+                    }
+
+                    content = css.slice(start, next + 1);
+                    lines = content.split('\n');
+                    last = lines.length - 1;
+
+                    if (last > 0) {
+                        nextLine = line + last;
+                        nextOffset = next - lines[last].length;
+                    } else {
+                        nextLine = line;
+                        nextOffset = offset;
+                    }
+
+                    tokenType = t.comment;
+                    line = nextLine;
+                    endLine = nextLine;
+                    endColumn = next - nextOffset;
+                } else if (code === t.slash) {
+                    next = start;
+                    tokenType = code;
+                    endLine = line;
+                    endColumn = start - offset;
+                    end = next + 1;
+                } else {
+                    next = consumeWord(css, start);
+                    tokenType = t.word;
+                    endLine = line;
+                    endColumn = next - offset;
+                }
+
+                end = next + 1;
+                break;
+        }
+
+        // Ensure that the token structure remains consistent
+        tokens.push([tokenType, // [0] Token type
+        line, // [1] Starting line
+        start - offset, // [2] Starting column
+        endLine, // [3] Ending line
+        endColumn, // [4] Ending column
+        start, // [5] Start position / Source index
+        end] // [6] End position
+        );
+
+        // Reset offset for the next token
+        if (nextOffset) {
+            offset = nextOffset;
+            nextOffset = null;
+        }
+
+        start = end;
+    }
+
+    return tokens;
+}

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/util/ensureObject.js

@@ -0,0 +1,20 @@
+"use strict";
+
+exports.__esModule = true;
+exports.default = ensureObject;
+function ensureObject(obj) {
+    for (var _len = arguments.length, props = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+        props[_key - 1] = arguments[_key];
+    }
+
+    while (props.length > 0) {
+        var prop = props.shift();
+
+        if (!obj[prop]) {
+            obj[prop] = {};
+        }
+
+        obj = obj[prop];
+    }
+}
+module.exports = exports["default"];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/util/getProp.js

@@ -0,0 +1,22 @@
+"use strict";
+
+exports.__esModule = true;
+exports.default = getProp;
+function getProp(obj) {
+    for (var _len = arguments.length, props = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+        props[_key - 1] = arguments[_key];
+    }
+
+    while (props.length > 0) {
+        var prop = props.shift();
+
+        if (!obj[prop]) {
+            return undefined;
+        }
+
+        obj = obj[prop];
+    }
+
+    return obj;
+}
+module.exports = exports["default"];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/util/index.js

@@ -0,0 +1,41 @@
+'use strict';
+
+exports.__esModule = true;
+
+var _unesc = require('./unesc');
+
+Object.defineProperty(exports, 'unesc', {
+  enumerable: true,
+  get: function get() {
+    return _interopRequireDefault(_unesc).default;
+  }
+});
+
+var _getProp = require('./getProp');
+
+Object.defineProperty(exports, 'getProp', {
+  enumerable: true,
+  get: function get() {
+    return _interopRequireDefault(_getProp).default;
+  }
+});
+
+var _ensureObject = require('./ensureObject');
+
+Object.defineProperty(exports, 'ensureObject', {
+  enumerable: true,
+  get: function get() {
+    return _interopRequireDefault(_ensureObject).default;
+  }
+});
+
+var _stripComments = require('./stripComments');
+
+Object.defineProperty(exports, 'stripComments', {
+  enumerable: true,
+  get: function get() {
+    return _interopRequireDefault(_stripComments).default;
+  }
+});
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/util/stripComments.js

@@ -0,0 +1,21 @@
+"use strict";
+
+exports.__esModule = true;
+exports.default = stripComments;
+function stripComments(str) {
+    var s = "";
+    var commentStart = str.indexOf("/*");
+    var lastEnd = 0;
+    while (commentStart >= 0) {
+        s = s + str.slice(lastEnd, commentStart);
+        var commentEnd = str.indexOf("*/", commentStart + 2);
+        if (commentEnd < 0) {
+            return s;
+        }
+        lastEnd = commentEnd + 2;
+        commentStart = str.indexOf("/*", lastEnd);
+    }
+    s = s + str.slice(lastEnd);
+    return s;
+}
+module.exports = exports["default"];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/dist/util/unesc.js

@@ -0,0 +1,18 @@
+"use strict";
+
+exports.__esModule = true;
+exports.default = unesc;
+var HEX_ESC = /\\(?:([0-9a-fA-F]{6})|([0-9a-fA-F]{1,5})(?: |(?![0-9a-fA-F])))/g;
+var OTHER_ESC = /\\(.)/g;
+function unesc(str) {
+    str = str.replace(HEX_ESC, function (_, hex1, hex2) {
+        var hex = hex1 || hex2;
+        var code = parseInt(hex, 16);
+        return String.fromCharCode(code);
+    });
+    str = str.replace(OTHER_ESC, function (_, char) {
+        return char;
+    });
+    return str;
+}
+module.exports = exports["default"];

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/package.json

@@ -0,0 +1,76 @@
+{
+  "name": "postcss-selector-parser",
+  "version": "5.0.0",
+  "devDependencies": {
+    "ava": "^0.25.0",
+    "babel-cli": "^6.26.0",
+    "babel-core": "^6.26.3",
+    "babel-eslint": "^8.2.3",
+    "babel-plugin-add-module-exports": "^0.2.0",
+    "babel-plugin-precompile-charcodes": "^1.1.0",
+    "babel-preset-es2015": "^6.24.1",
+    "babel-preset-es2015-loose": "^7.0.0",
+    "babel-preset-stage-0": "^6.24.1",
+    "babel-register": "^6.26.0",
+    "coveralls": "^3.0.2",
+    "del-cli": "^1.1.0",
+    "eslint": "^4.19.1",
+    "eslint-plugin-babel": "^3.3.0",
+    "eslint-plugin-import": "^2.14.0",
+    "glob": "^7.1.3",
+    "minimist": "^1.2.0",
+    "nyc": "^11.7.3",
+    "postcss": "^7.0.7",
+    "semver": "^5.6.0"
+  },
+  "main": "dist/index.js",
+  "types": "postcss-selector-parser.d.ts",
+  "files": [
+    "API.md",
+    "CHANGELOG.md",
+    "LICENSE-MIT",
+    "dist",
+    "postcss-selector-parser.d.ts"
+  ],
+  "scripts": {
+    "pretest": "eslint src",
+    "prepare": "del-cli dist && BABEL_ENV=publish babel src --out-dir dist --ignore /__tests__/",
+    "lintfix": "eslint --fix src",
+    "report": "nyc report --reporter=html",
+    "test": "nyc ava src/__tests__/*.js",
+    "testone": "ava"
+  },
+  "dependencies": {
+    "cssesc": "^2.0.0",
+    "indexes-of": "^1.0.1",
+    "uniq": "^1.0.1"
+  },
+  "license": "MIT",
+  "engines": {
+    "node": ">=4"
+  },
+  "homepage": "https://github.com/postcss/postcss-selector-parser",
+  "contributors": [
+    {
+      "name": "Ben Briggs",
+      "email": "beneb.info@gmail.com",
+      "url": "http://beneb.info"
+    },
+    {
+      "name": "Chris Eppstein",
+      "email": "chris@eppsteins.net",
+      "url": "http://twitter.com/chriseppstein"
+    }
+  ],
+  "repository": "postcss/postcss-selector-parser",
+  "ava": {
+    "require": "babel-register",
+    "concurrency": 5
+  },
+  "nyc": {
+    "exclude": [
+      "node_modules",
+      "**/__tests__"
+    ]
+  }
+}

web/node_modules/postcss-custom-selectors/node_modules/postcss-selector-parser/postcss-selector-parser.d.ts

@@ -0,0 +1,499 @@
+// Type definitions for postcss-selector-parser 2.2.3
+// Definitions by: Chris Eppstein <chris@eppsteins.net>
+
+/*~ Note that ES6 modules cannot directly export callable functions.
+ *~ This file should be imported using the CommonJS-style:
+ *~   import x = require('someLibrary');
+ *~
+ *~ Refer to the documentation to understand common
+ *~ workarounds for this limitation of ES6 modules.
+ */
+
+/*~ This declaration specifies that the function
+ *~ is the exported object from the file
+ */
+export = parser;
+
+// TODO: Conditional types in TS 1.8 will really clean this up.
+declare function parser(): parser.Processor<never>;
+declare function parser<Transform>(processor: parser.AsyncProcessor<Transform>): parser.Processor<Transform, never>;
+declare function parser(processor: parser.AsyncProcessor<void>): parser.Processor<never, never>;
+declare function parser<Transform>(processor: parser.SyncProcessor<Transform>): parser.Processor<Transform>;
+declare function parser(processor: parser.SyncProcessor<void>): parser.Processor<never>;
+declare function parser<Transform>(processor?: parser.SyncProcessor<Transform> | parser.AsyncProcessor<Transform>): parser.Processor<Transform>;
+
+/*~ If you want to expose types from your module as well, you can
+ *~ place them in this block. Often you will want to describe the
+ *~ shape of the return type of the function; that type should
+ *~ be declared in here, as this example shows.
+ */
+declare namespace parser {
+    /* copied from postcss -- so we don't need to add a dependency */
+    type ErrorOptions = {
+        plugin?: string;
+        word?: string;
+        index?: number
+    };
+    /* the bits we use of postcss.Rule, copied from postcss -- so we don't need to add a dependency */
+    type PostCSSRuleNode = {
+        selector: string
+        /**
+         * @returns postcss.CssSyntaxError but it's a complex object, caller
+         *   should cast to it if they have a dependency on postcss.
+         */
+        error(message: string, options?: ErrorOptions): Error;
+    };
+    /** Accepts a string  */
+    type Selectors = string | PostCSSRuleNode
+    type ProcessorFn<ReturnType = void> = (root: parser.Root) => ReturnType;
+    type SyncProcessor<Transform = void> = ProcessorFn<Transform>;
+    type AsyncProcessor<Transform = void> = ProcessorFn<PromiseLike<Transform>>;
+
+    const TAG: "tag";
+    const STRING: "string";
+    const SELECTOR: "selector";
+    const ROOT: "root";
+    const PSEUDO: "pseudo";
+    const NESTING: "nesting";
+    const ID: "id";
+    const COMMENT: "comment";
+    const COMBINATOR: "combinator";
+    const CLASS: "class";
+    const ATTRIBUTE: "attribute";
+    const UNIVERSAL: "universal";
+
+    interface NodeTypes {
+        tag: Tag,
+        string: String,
+        selector: Selector,
+        root: Root,
+        pseudo: Pseudo,
+        nesting: Nesting,
+        id: Identifier,
+        comment: Comment,
+        combinator: Combinator,
+        class: ClassName,
+        attribute: Attribute,
+        universal: Universal
+    }
+
+    type Node = NodeTypes[keyof NodeTypes];
+
+    function isNode(node: any): node is Node;
+
+    interface Options {
+        /**
+         * Preserve whitespace when true. Default: false;
+         */
+        lossless: boolean;
+        /**
+         * When true and a postcss.Rule is passed, set the result of
+         * processing back onto the rule when done. Default: false.
+         */
+        updateSelector: boolean;
+    }
+    class Processor<
+        TransformType = never,
+        SyncSelectorsType extends Selectors | never = Selectors
+    > {
+        res: Root;
+        readonly result: String;
+        ast(selectors: Selectors, options?: Partial<Options>): Promise<Root>;
+        astSync(selectors: SyncSelectorsType, options?: Partial<Options>): Root;
+        transform(selectors: Selectors, options?: Partial<Options>): Promise<TransformType>;
+        transformSync(selectors: SyncSelectorsType, options?: Partial<Options>): TransformType;
+        process(selectors: Selectors, options?: Partial<Options>): Promise<string>;
+        processSync(selectors: SyncSelectorsType, options?: Partial<Options>): string;
+    }
+    interface ParserOptions {
+        css: string;
+        error: (message: string, options: ErrorOptions) => Error;
+        options: Options;
+    }
+    class Parser {
+        input: ParserOptions;
+        lossy: boolean;
+        position: number;
+        root: Root;
+        selectors: string;
+        current: Selector;
+        constructor(input: ParserOptions);
+        /**
+         * Raises an error, if the processor is invoked on
+         * a postcss Rule node, a better error message is raised.
+         */
+        error(message: string, options?: ErrorOptions): void;
+    }
+    interface NodeSource {
+        start?: {
+            line: number,
+            column: number
+        },
+        end?: {
+            line: number,
+            column: number
+        }
+    }
+    interface SpaceAround {
+      before: string;
+      after: string;
+    }
+    interface Spaces extends SpaceAround {
+      [spaceType: string]: string | Partial<SpaceAround> | undefined;
+    }
+    interface NodeOptions<Value = string> {
+        value: Value;
+        spaces?: Partial<Spaces>;
+        source?: NodeSource;
+        sourceIndex?: number;
+    }
+    interface Base<
+        Value extends string | undefined = string,
+        ParentType extends Container | undefined = Container | undefined
+    > {
+        type: keyof NodeTypes;
+        parent: ParentType;
+        value: Value;
+        spaces: Spaces;
+        source?: NodeSource;
+        sourceIndex: number;
+        rawSpaceBefore: string;
+        rawSpaceAfter: string;
+        remove(): Node;
+        replaceWith(...nodes: Node[]): Node;
+        next(): Node;
+        prev(): Node;
+        clone(opts: {[override: string]:any}): Node;
+        /**
+         * Return whether this node includes the character at the position of the given line and column.
+         * Returns undefined if the nodes lack sufficient source metadata to determine the position.
+         * @param line 1-index based line number relative to the start of the selector.
+         * @param column 1-index based column number relative to the start of the selector.
+         */
+        isAtPosition(line: number, column: number): boolean | undefined;
+        /**
+         * Some non-standard syntax doesn't follow normal escaping rules for css,
+         * this allows the escaped value to be specified directly, allowing illegal characters to be
+         * directly inserted into css output.
+         * @param name the property to set
+         * @param value the unescaped value of the property
+         * @param valueEscaped optional. the escaped value of the property.
+         */
+        setPropertyAndEscape(name: string, value: any, valueEscaped: string): void;
+        /**
+         * When you want a value to passed through to CSS directly. This method
+         * deletes the corresponding raw value causing the stringifier to fallback
+         * to the unescaped value.
+         * @param name the property to set.
+         * @param value The value that is both escaped and unescaped.
+         */
+        setPropertyWithoutEscape(name: string, value: any): void;
+        /**
+         * Some non-standard syntax doesn't follow normal escaping rules for css.
+         * This allows non standard syntax to be appended to an existing property
+         * by specifying the escaped value. By specifying the escaped value,
+         * illegal characters are allowed to be directly inserted into css output.
+         * @param {string} name the property to set
+         * @param {any} value the unescaped value of the property
+         * @param {string} valueEscaped optional. the escaped value of the property.
+         */
+        appendToPropertyAndEscape(name: string, value: any, valueEscaped: string): void;
+        toString(): string;
+    }
+    interface ContainerOptions extends NodeOptions {
+        nodes?: Array<Node>;
+    }
+    interface Container<Value extends string | undefined = string> extends Base<Value> {
+        nodes: Array<Node>;
+        append(selector: Selector): Container;
+        prepend(selector: Selector): Container;
+        at(index: number): Node;
+        /**
+         * Return the most specific node at the line and column number given.
+         * The source location is based on the original parsed location, locations aren't
+         * updated as selector nodes are mutated.
+         *
+         * Note that this location is relative to the location of the first character
+         * of the selector, and not the location of the selector in the overall document
+         * when used in conjunction with postcss.
+         *
+         * If not found, returns undefined.
+         * @param line The line number of the node to find. (1-based index)
+         * @param col  The column number of the node to find. (1-based index)
+         */
+        atPosition(line: number, column: number): Node;
+        index(child: Node): number;
+        readonly first: Node;
+        readonly last: Node;
+        readonly length: number;
+        removeChild(child: Node): Container;
+        removeAll(): Container;
+        empty(): Container;
+        insertAfter(oldNode: Node, newNode: Node): Container;
+        insertBefore(oldNode: Node, newNode: Node): Container;
+        each(callback: (node: Node) => boolean | void): boolean | undefined;
+        walk(callback: (node: Node) => boolean | void): boolean | undefined;
+        walkAttributes(callback: (node: Node) => boolean | void): boolean | undefined;
+        walkClasses(callback: (node: Node) => boolean | void): boolean | undefined;
+        walkCombinators(callback: (node: Node) => boolean | void): boolean | undefined;
+        walkComments(callback: (node: Node) => boolean | void): boolean | undefined;
+        walkIds(callback: (node: Node) => boolean | void): boolean | undefined;
+        walkNesting(callback: (node: Node) => boolean | void): boolean | undefined;
+        walkPseudos(callback: (node: Node) => boolean | void): boolean | undefined;
+        walkTags(callback: (node: Node) => boolean | void): boolean | undefined;
+        split(callback: (node: Node) => boolean): [Node[], Node[]];
+        map(callback: (node: Node) => Node): Node[];
+        reduce<T>(callback: (node: Node) => Node, memo: T): T;
+        every(callback: (node: Node) => boolean): boolean;
+        some(callback: (node: Node) => boolean): boolean;
+        filter(callback: (node: Node) => boolean): Node[];
+        sort(callback: (nodeA: Node, nodeB: Node) => number): Node[];
+        toString(): string;
+    }
+    function isContainer(node: any): node is Root | Selector | Pseudo;
+
+    interface NamespaceOptions<Value extends string | undefined = string> extends NodeOptions<Value> {
+        namespace?: string | true;
+    }
+    interface Namespace<Value extends string | undefined = string> extends Base<Value> {
+        /** alias for namespace */
+        ns: string | true;
+        /**
+         *  namespace prefix.
+         */
+        namespace: string | true;
+        /**
+         * If a namespace exists, prefix the value provided with it, separated by |.
+         */
+        qualifiedName(value: string): string;
+        /**
+         * A string representing the namespace suitable for output.
+         */
+        readonly namespaceString: string;
+    }
+    function isNamespace(node: any): node is Attribute | Tag;
+
+    interface Root extends Container<undefined> {
+        type: "root";
+        /**
+         * Raises an error, if the processor is invoked on
+         * a postcss Rule node, a better error message is raised.
+         */
+        error(message: string, options?: ErrorOptions): Error;
+        nodeAt(line: number, column: number): Node
+    }
+    function root(opts: ContainerOptions): Root;
+    function isRoot(node: any): node is Root;
+
+    interface Selector extends Container {
+        type: "selector";
+    }
+    function selector(opts: ContainerOptions): Selector;
+    function isSelector(node: any): node is Selector;
+
+    interface Combinator extends Base {
+        type: "combinator"
+    }
+    function combinator(opts: NodeOptions): Combinator;
+    function isCombinator(node: any): node is Combinator;
+
+    interface ClassName extends Base {
+        type: "class";
+    }
+    function className(opts: NamespaceOptions): ClassName;
+    function isClassName(node: any): node is ClassName;
+
+    type AttributeOperator = "=" | "~=" | "|=" | "^=" | "$=" | "*=";
+    type QuoteMark = '"' | "'" | null;
+    interface PreferredQuoteMarkOptions {
+        quoteMark?: QuoteMark;
+        preferCurrentQuoteMark?: boolean;
+    }
+    interface SmartQuoteMarkOptions extends PreferredQuoteMarkOptions {
+        smart?: boolean;
+    }
+    interface AttributeOptions extends NamespaceOptions<string | undefined> {
+        attribute: string;
+        operator?: AttributeOperator;
+        insensitive?: boolean;
+        quoteMark?: QuoteMark;
+        /** @deprecated Use quoteMark instead. */
+        quoted?: boolean;
+        spaces?: {
+            before?: string;
+            after?: string;
+            attribute?: Partial<SpaceAround>;
+            operator?: Partial<SpaceAround>;
+            value?: Partial<SpaceAround>;
+            insensitive?: Partial<SpaceAround>;
+        }
+        raws: {
+            unquoted?: string;
+            attribute?: string;
+            operator?: string;
+            value?: string;
+            insensitive?: string;
+            spaces?: {
+                attribute?: Partial<Spaces>;
+                operator?: Partial<Spaces>;
+                value?: Partial<Spaces>;
+                insensitive?: Partial<Spaces>;
+            }
+        };
+    }
+    interface Attribute extends Namespace<string | undefined> {
+        type: "attribute";
+        attribute: string;
+        operator?: AttributeOperator;
+        insensitive?: boolean;
+        quoteMark: QuoteMark;
+        quoted?: boolean;
+        spaces: {
+            before: string;
+            after: string;
+            attribute?: Partial<Spaces>;
+            operator?: Partial<Spaces>;
+            value?: Partial<Spaces>;
+            insensitive?: Partial<Spaces>;
+        }
+        raws: {
+            /** @deprecated The attribute value is unquoted, use that instead.. */
+            unquoted?: string;
+            attribute?: string;
+            operator?: string;
+            /** The value of the attribute with quotes and escapes. */
+            value?: string;
+            insensitive?: string;
+            spaces?: {
+                attribute?: Partial<Spaces>;
+                operator?: Partial<Spaces>;
+                value?: Partial<Spaces>;
+                insensitive?: Partial<Spaces>;
+            }
+        };
+        /**
+         * The attribute name after having been qualified with a namespace.
+         */
+        readonly qualifiedAttribute: string;
+
+        /**
+         * The case insensitivity flag or an empty string depending on whether this
+         * attribute is case insensitive.
+         */
+        readonly insensitiveFlag : 'i' | '';
+
+        /**
+         * Returns the attribute's value quoted such that it would be legal to use
+         * in the value of a css file. The original value's quotation setting
+         * used for stringification is left unchanged. See `setValue(value, options)`
+         * if you want to control the quote settings of a new value for the attribute or
+         * `set quoteMark(mark)` if you want to change the quote settings of the current
+         * value.
+         *
+         * You can also change the quotation used for the current value by setting quoteMark.
+         **/
+        getQuotedValue(options?: SmartQuoteMarkOptions): string;
+
+        /**
+         * Set the unescaped value with the specified quotation options. The value
+         * provided must not include any wrapping quote marks -- those quotes will
+         * be interpreted as part of the value and escaped accordingly.
+         * @param value
+         */
+        setValue(value: string, options?: SmartQuoteMarkOptions): void;
+
+        /**
+         * Intelligently select a quoteMark value based on the value's contents. If
+         * the value is a legal CSS ident, it will not be quoted. Otherwise a quote
+         * mark will be picked that minimizes the number of escapes.
+         *
+         * If there's no clear winner, the quote mark from these options is used,
+         * then the source quote mark (this is inverted if `preferCurrentQuoteMark` is
+         * true). If the quoteMark is unspecified, a double quote is used.
+         **/
+        smartQuoteMark(options: PreferredQuoteMarkOptions): QuoteMark;
+
+        /**
+         * Selects the preferred quote mark based on the options and the current quote mark value.
+         * If you want the quote mark to depend on the attribute value, call `smartQuoteMark(opts)`
+         * instead.
+         */
+        preferredQuoteMark(options: PreferredQuoteMarkOptions): QuoteMark
+
+        /**
+         * returns the offset of the attribute part specified relative to the
+         * start of the node of the output string.
+         *
+         * * "ns" - alias for "namespace"
+         * * "namespace" - the namespace if it exists.
+         * * "attribute" - the attribute name
+         * * "attributeNS" - the start of the attribute or its namespace
+         * * "operator" - the match operator of the attribute
+         * * "value" - The value (string or identifier)
+         * * "insensitive" - the case insensitivity flag;
+         * @param part One of the possible values inside an attribute.
+         * @returns -1 if the name is invalid or the value doesn't exist in this attribute.
+         */
+        offsetOf(part: "ns" | "namespace" | "attribute" | "attributeNS" | "operator" | "value" | "insensitive"): number;
+    }
+    function attribute(opts: AttributeOptions): Attribute;
+    function isAttribute(node: any): node is Attribute;
+
+    interface Pseudo extends Container {
+        type: "pseudo";
+    }
+    function pseudo(opts: ContainerOptions): Pseudo;
+    /**
+     * Checks wether the node is the Psuedo subtype of node.
+     */
+    function isPseudo(node: any): node is Pseudo;
+
+    /**
+     * Checks wether the node is, specifically, a pseudo element instead of
+     * pseudo class.
+     */
+    function isPseudoElement(node: any): node is Pseudo;
+
+    /**
+     * Checks wether the node is, specifically, a pseudo class instead of
+     * pseudo element.
+     */
+    function isPseudoClass(node: any): node is Pseudo;
+
+
+    interface Tag extends Namespace {
+        type: "tag";
+    }
+    function tag(opts: NamespaceOptions): Tag;
+    function isTag(node: any): node is Tag;
+
+    interface Comment extends Base {
+        type: "comment";
+    }
+    function comment(opts: NodeOptions): Comment;
+    function isComment(node: any): node is Comment;
+
+    interface Identifier extends Base {
+        type: "id";
+    }
+    function id(opts: any): any;
+    function isIdentifier(node: any): node is Identifier;
+
+    interface Nesting extends Base {
+        type: "nesting";
+    }
+    function nesting(opts: any): any;
+    function isNesting(node: any): node is Nesting;
+
+    interface String extends Base {
+        type: "string";
+    }
+    function string(opts: NodeOptions): String;
+    function isString(node: any): node is String;
+
+    interface Universal extends Base {
+        type: "universal";
+    }
+    function universal(opts?: NamespaceOptions): any;
+    function isUniversal(node: any): node is Universal;
+}

web/node_modules/postcss-custom-selectors/package.json

@@ -0,0 +1,67 @@
+{
+  "name": "postcss-custom-selectors",
+  "version": "5.1.2",
+  "description": "Use Custom Selectors in CSS",
+  "author": "Jonathan Neal <jonathantneal@hotmail.com>",
+  "contributors": [
+    "yisi",
+    "Maxime Thirouin"
+  ],
+  "license": "MIT",
+  "repository": "postcss/postcss-custom-selectors",
+  "homepage": "https://github.com/postcss/postcss-custom-selectors#readme",
+  "bugs": "https://github.com/postcss/postcss-custom-selectors/issues",
+  "main": "index.cjs.js",
+  "module": "index.es.mjs",
+  "files": [
+    "index.cjs.js",
+    "index.cjs.js.map",
+    "index.es.mjs",
+    "index.es.mjs.map"
+  ],
+  "scripts": {
+    "prepublishOnly": "npm test",
+    "pretest": "rollup -c .rollup.js --silent",
+    "test": "echo 'Running tests...'; npm run test:js && npm run test:tape",
+    "test:js": "eslint *.js lib/*.js --cache --ignore-path .gitignore --quiet",
+    "test:tape": "postcss-tape"
+  },
+  "engines": {
+    "node": ">=6.0.0"
+  },
+  "dependencies": {
+    "postcss": "^7.0.2",
+    "postcss-selector-parser": "^5.0.0-rc.3"
+  },
+  "devDependencies": {
+    "@babel/core": "^7.1.0",
+    "@babel/plugin-syntax-dynamic-import": "^7.0.0",
+    "@babel/preset-env": "^7.1.0",
+    "babel-eslint": "^9.0.0",
+    "eslint": "^5.6.0",
+    "eslint-config-dev": "^2.0.0",
+    "postcss-tape": "^2.2.0",
+    "pre-commit": "^1.2.2",
+    "rollup": "^0.66.1",
+    "rollup-plugin-babel": "^4.0.3"
+  },
+  "eslintConfig": {
+    "extends": "dev",
+    "parser": "babel-eslint"
+  },
+  "keywords": [
+    "postcss",
+    "css",
+    "postcss-plugin",
+    "custom",
+    "selectors",
+    "w3c",
+    "csswg",
+    "extensions",
+    "declarative",
+    "rule",
+    "atrule",
+    "at-rule",
+    "specification"
+  ]
+}