assetgraph/lib/util/cssPseudoClassRegExp.js

An auto discovery dependency graph based optimization framework for web pages and applications

const pseudoClasses = [
  // pseudo-classes: https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-classes
  'active',
  'any',
  'checked',
  'default',
  // 'dir()',
  // 'disabled',
  'empty',
  'enabled',
  // 'first',
  // 'first-child',
  // 'first-of-type',
  'fullscreen',
  'focus',
  'hover',
  'indeterminate',
  'in-range',
  'invalid',
  // 'lang()',
  // 'last-child',
  // 'last-of-type',
  // 'left',
  'link',
  // 'not()',
  // 'nth-child()',
  // 'nth-last-child()',
  // 'nth-last-of-type()',
  // 'nth-of-type()',
  // 'only-child',
  // 'only-of-type',
  'optional',
  'out-of-range',
  'read-only',
  'read-write',
  // 'required',
  // 'right',
  // 'root', // It's not practical to treat :root as a pseudo class as it always matches the root element
  'scope',
  'target',
  'valid',
  'visited'
];

module.exports = new RegExp(`:(?:${pseudoClasses.join('|')})`, 'gi');