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* @typedef {import('hast').Text} Text\n * @typedef {import('highlight.js').HighlightResult} HighlightResult\n * @typedef {import('highlight.js').HLJSOptions} HighlightOptions\n * @typedef {import('highlight.js').LanguageFn} HighlightSyntax\n * @typedef {import('highlight.js').Emitter} HighlightEmitter\n *\n * @typedef {{type: 'element', tagName: 'span', properties: {className: Array<string>}, children: Array<Span|Text>}} Span\n * @typedef {{type: 'root', data: {language: string|null, relevance: number}, children: Array<Span|Text>}} Root\n *\n * @typedef {Object} ExtraOptions\n * @property {Array<string>} [subset]\n *   List of allowed languages, defaults to all registered languages.\n *\n * @typedef {Object} Options\n *   Configuration.\n * @property {string} [prefix='hljs-']\n *   Class prefix.\n *\n * @typedef {Options & ExtraOptions} AutoOptions\n */\n\nimport high from 'highlight.js/lib/core'\nimport {fault} from 'fault'\n\nconst own = {}.hasOwnProperty\n\nconst defaultPrefix = 'hljs-'\n\n/**\n * Highlight `value` (code) as `language` (name).\n *\n * @param {string} language\n *   Programming language name.\n * @param {string} value\n *   Code to highlight.\n * @param {Options} [options={}]\n *   Configuration.\n * @returns {Root}\n *   A hast `Root` node.\n */\nfunction highlight(language, value, options = {}) {\n  let prefix = options.prefix\n\n  if (typeof language !== 'string') {\n    throw fault('Expected `string` for name, got `%s`', language)\n  }\n\n  if (!high.getLanguage(language)) {\n    throw fault('Unknown language: `%s` is not registered', language)\n  }\n\n  if (typeof value !== 'string') {\n    throw fault('Expected `string` for value, got `%s`', value)\n  }\n\n  if (prefix === null || prefix === undefined) {\n    prefix = defaultPrefix\n  }\n\n  high.configure({__emitter: HastEmitter, classPrefix: prefix})\n\n  const result = /** @type {HighlightResult & {_emitter: HastEmitter}} */ (\n    high.highlight(value, {language, ignoreIllegals: true})\n  )\n\n  high.configure({})\n\n  // `highlight.js` seems to use this (currently) for broken grammars, so let’s\n  // keep it in there just to be sure.\n  /* c8 ignore next 3 */\n  if (result.errorRaised) {\n    throw result.errorRaised\n  }\n\n  // @ts-expect-error: `language` is always defined in `highlight`.\n  result._emitter.root.data.language = result.language\n  result._emitter.root.data.relevance = result.relevance\n\n  return result._emitter.root\n}\n\n/**\n * Highlight `value` (code) and guess its programming language.\n *\n * @param {string} value\n *   Code to highlight.\n * @param {AutoOptions} [options={}]\n *   Configuration.\n * @returns {Root}\n *   A hast `Root` node.\n */\nfunction highlightAuto(value, options = {}) {\n  const subset = options.subset || high.listLanguages()\n  let prefix = options.prefix\n  let index = -1\n  /** @type {Root} */\n  let result = {\n    type: 'root',\n    data: {language: null, relevance: 0},\n    children: []\n  }\n\n  if (prefix === null || prefix === undefined) {\n    prefix = defaultPrefix\n  }\n\n  if (typeof value !== 'string') {\n    throw fault('Expected `string` for value, got `%s`', value)\n  }\n\n  while (++index < subset.length) {\n    const name = subset[index]\n\n    if (!high.getLanguage(name)) continue\n\n    const current = highlight(name, value, options)\n\n    if (current.data.relevance > result.data.relevance) result = current\n  }\n\n  return result\n}\n\n/**\n * Register a language.\n *\n * @param {string} language\n *   Programming language name.\n * @param {HighlightSyntax} syntax\n *   `highlight.js` language syntax.\n * @returns {void}\n */\nfunction registerLanguage(language, syntax) {\n  high.registerLanguage(language, syntax)\n}\n\n/**\n * Register aliases for already registered languages.\n *\n * @param {string|Record<string, string|Array<string>>} language\n *   Programming language name or a map of `language`s to `alias`es or `list`s\n * @param {string|Array<string>} [alias]\n *   New aliases for the programming language.\n * @returns {void}\n */\nconst registerAlias =\n  /**\n   * @type {(\n   *   ((language: string, alias: string|Array<string>) => void) &\n   *   ((aliases: Record<string, string|Array<string>>) => void)\n   * )}\n   */\n  (\n    /**\n     * @param {string|Record<string, string|Array<string>>} language\n     * @param {string|Array<string>} [alias]\n     * @returns {void}\n     */\n    function (language, alias) {\n      if (typeof language === 'string') {\n        // @ts-expect-error: should be a string in this overload.\n        high.registerAliases(alias, {languageName: language})\n      } else {\n        /** @type {string} */\n        let key\n\n        for (key in language) {\n          if (own.call(language, key)) {\n            high.registerAliases(language[key], {languageName: key})\n          }\n        }\n      }\n    }\n  )\n\n/**\n * Check whether an `alias` or `language` is registered.\n *\n * @param {string} aliasOrLanguage\n *   Name of a registered language or alias.\n * @returns {boolean}\n *   Whether `aliasOrlanguage` is registered.\n */\nfunction registered(aliasOrLanguage) {\n  return Boolean(high.getLanguage(aliasOrLanguage))\n}\n\n/**\n * List registered languages.\n *\n * @returns {Array<string>}\n *   Names of registered language.\n */\nfunction listLanguages() {\n  return high.listLanguages()\n}\n\n/** @type {HighlightEmitter} */\nclass HastEmitter {\n  /**\n   * @param {HighlightOptions} options\n   */\n  constructor(options) {\n    /** @type {HighlightOptions} */\n    this.options = options\n    /** @type {Root} */\n    this.root = {\n      type: 'root',\n      data: {language: null, relevance: 0},\n      children: []\n    }\n    /** @type {[Root, ...Span[]]} */\n    this.stack = [this.root]\n  }\n\n  /**\n   * @param {string} value\n   */\n  addText(value) {\n    if (value === '') return\n\n    const current = this.stack[this.stack.length - 1]\n    const tail = current.children[current.children.length - 1]\n\n    if (tail && tail.type === 'text') {\n      tail.value += value\n    } else {\n      current.children.push({type: 'text', value})\n    }\n  }\n\n  /**\n   * @param {string} value\n   * @param {string} name\n   */\n  addKeyword(value, name) {\n    this.openNode(name)\n    this.addText(value)\n    this.closeNode()\n  }\n\n  /**\n   * @param {HastEmitter} other\n   * @param {string} name\n   */\n  addSublanguage(other, name) {\n    const current = this.stack[this.stack.length - 1]\n    const results = other.root.children\n\n    if (name) {\n      current.children.push({\n        type: 'element',\n        tagName: 'span',\n        properties: {className: [name]},\n        children: results\n      })\n    } else {\n      current.children.push(...results)\n    }\n  }\n\n  /**\n   * @param {string} name\n   */\n  openNode(name) {\n    // First “class” gets the prefix. Rest gets a repeated underscore suffix.\n    // See: <https://github.com/highlightjs/highlight.js/commit/51806aa>\n    // See: <https://github.com/wooorm/lowlight/issues/43>\n    const className = name\n      .split('.')\n      .map((d, i) => (i ? d + '_'.repeat(i) : this.options.classPrefix + d))\n    const current = this.stack[this.stack.length - 1]\n    /** @type {Span} */\n    const child = {\n      type: 'element',\n      tagName: 'span',\n      properties: {className},\n      children: []\n    }\n\n    current.children.push(child)\n    this.stack.push(child)\n  }\n\n  /**\n   */\n  closeNode() {\n    this.stack.pop()\n  }\n\n  /**\n   */\n  closeAllNodes() {}\n\n  /**\n   */\n  finalize() {}\n\n  /**\n   */\n  toHTML() {\n    return ''\n  }\n}\n\nexport const lowlight = {\n  highlight,\n  highlightAuto,\n  registerLanguage,\n  registered,\n  listLanguages,\n  registerAlias\n}\n","import arduino from 'highlight.js/lib/languages/arduino'\nimport bash from 'highlight.js/lib/languages/bash'\nimport c from 'highlight.js/lib/languages/c'\nimport cpp from 'highlight.js/lib/languages/cpp'\nimport csharp from 'highlight.js/lib/languages/csharp'\nimport css from 'highlight.js/lib/languages/css'\nimport diff from 'highlight.js/lib/languages/diff'\nimport go from 'highlight.js/lib/languages/go'\nimport ini from 'highlight.js/lib/languages/ini'\nimport java from 'highlight.js/lib/languages/java'\nimport javascript from 'highlight.js/lib/languages/javascript'\nimport json from 'highlight.js/lib/languages/json'\nimport kotlin from 'highlight.js/lib/languages/kotlin'\nimport less from 'highlight.js/lib/languages/less'\nimport lua from 'highlight.js/lib/languages/lua'\nimport makefile from 'highlight.js/lib/languages/makefile'\nimport markdown from 'highlight.js/lib/languages/markdown'\nimport objectivec from 'highlight.js/lib/languages/objectivec'\nimport perl from 'highlight.js/lib/languages/perl'\nimport php from 'highlight.js/lib/languages/php'\nimport phpTemplate from 'highlight.js/lib/languages/php-template'\nimport plaintext from 'highlight.js/lib/languages/plaintext'\nimport python from 'highlight.js/lib/languages/python'\nimport pythonRepl from 'highlight.js/lib/languages/python-repl'\nimport r from 'highlight.js/lib/languages/r'\nimport ruby from 'highlight.js/lib/languages/ruby'\nimport rust from 'highlight.js/lib/languages/rust'\nimport scss from 'highlight.js/lib/languages/scss'\nimport shell from 'highlight.js/lib/languages/shell'\nimport sql from 'highlight.js/lib/languages/sql'\nimport swift from 'highlight.js/lib/languages/swift'\nimport typescript from 'highlight.js/lib/languages/typescript'\nimport vbnet from 'highlight.js/lib/languages/vbnet'\nimport xml from 'highlight.js/lib/languages/xml'\nimport yaml from 'highlight.js/lib/languages/yaml'\nimport {lowlight} from './core.js'\n\nlowlight.registerLanguage('arduino', arduino)\nlowlight.registerLanguage('bash', bash)\nlowlight.registerLanguage('c', c)\nlowlight.registerLanguage('cpp', cpp)\nlowlight.registerLanguage('csharp', csharp)\nlowlight.registerLanguage('css', css)\nlowlight.registerLanguage('diff', diff)\nlowlight.registerLanguage('go', go)\nlowlight.registerLanguage('ini', ini)\nlowlight.registerLanguage('java', java)\nlowlight.registerLanguage('javascript', javascript)\nlowlight.registerLanguage('json', json)\nlowlight.registerLanguage('kotlin', kotlin)\nlowlight.registerLanguage('less', less)\nlowlight.registerLanguage('lua', lua)\nlowlight.registerLanguage('makefile', makefile)\nlowlight.registerLanguage('markdown', markdown)\nlowlight.registerLanguage('objectivec', objectivec)\nlowlight.registerLanguage('perl', perl)\nlowlight.registerLanguage('php', php)\nlowlight.registerLanguage('php-template', phpTemplate)\nlowlight.registerLanguage('plaintext', plaintext)\nlowlight.registerLanguage('python', python)\nlowlight.registerLanguage('python-repl', pythonRepl)\nlowlight.registerLanguage('r', r)\nlowlight.registerLanguage('ruby', ruby)\nlowlight.registerLanguage('rust', rust)\nlowlight.registerLanguage('scss', scss)\nlowlight.registerLanguage('shell', shell)\nlowlight.registerLanguage('sql', sql)\nlowlight.registerLanguage('swift', swift)\nlowlight.registerLanguage('typescript', typescript)\nlowlight.registerLanguage('vbnet', vbnet)\nlowlight.registerLanguage('xml', xml)\nlowlight.registerLanguage('yaml', yaml)\n\nexport {lowlight} from './core.js'\n"],"sourceRoot":""}