basant307/AI_Governance_Project

1/**2 * @typedef {import('mdast').Nodes} Nodes3 *4 * @typedef Options5 *   Configuration (optional).6 * @property {boolean | null | undefined} [includeImageAlt=true]7 *   Whether to use `alt` for `image`s (default: `true`).8 * @property {boolean | null | undefined} [includeHtml=true]9 *   Whether to use `value` of HTML (default: `true`).10 */11 12/** @type {Options} */13const emptyOptions = {}14 15/**16 * Get the text content of a node or list of nodes.17 *18 * Prefers the node’s plain-text fields, otherwise serializes its children,19 * and if the given value is an array, serialize the nodes in it.20 *21 * @param {unknown} [value]22 *   Thing to serialize, typically `Node`.23 * @param {Options | null | undefined} [options]24 *   Configuration (optional).25 * @returns {string}26 *   Serialized `value`.27 */28export function toString(value, options) {29  const settings = options || emptyOptions30  const includeImageAlt =31    typeof settings.includeImageAlt === 'boolean'32      ? settings.includeImageAlt33      : true34  const includeHtml =35    typeof settings.includeHtml === 'boolean' ? settings.includeHtml : true36 37  return one(value, includeImageAlt, includeHtml)38}39 40/**41 * One node or several nodes.42 *43 * @param {unknown} value44 *   Thing to serialize.45 * @param {boolean} includeImageAlt46 *   Include image `alt`s.47 * @param {boolean} includeHtml48 *   Include HTML.49 * @returns {string}50 *   Serialized node.51 */52function one(value, includeImageAlt, includeHtml) {53  if (node(value)) {54    if ('value' in value) {55      return value.type === 'html' && !includeHtml ? '' : value.value56    }57 58    if (includeImageAlt && 'alt' in value && value.alt) {59      return value.alt60    }61 62    if ('children' in value) {63      return all(value.children, includeImageAlt, includeHtml)64    }65  }66 67  if (Array.isArray(value)) {68    return all(value, includeImageAlt, includeHtml)69  }70 71  return ''72}73 74/**75 * Serialize a list of nodes.76 *77 * @param {Array<unknown>} values78 *   Thing to serialize.79 * @param {boolean} includeImageAlt80 *   Include image `alt`s.81 * @param {boolean} includeHtml82 *   Include HTML.83 * @returns {string}84 *   Serialized nodes.85 */86function all(values, includeImageAlt, includeHtml) {87  /** @type {Array<string>} */88  const result = []89  let index = -190 91  while (++index < values.length) {92    result[index] = one(values[index], includeImageAlt, includeHtml)93  }94 95  return result.join('')96}97 98/**99 * Check if `value` looks like a node.100 *101 * @param {unknown} value102 *   Thing.103 * @returns {value is Nodes}104 *   Whether `value` is a node.105 */106function node(value) {107  return Boolean(value && typeof value === 'object')108}109