Method walkTokens

src/Instance.ts:38–74

* Run callback for every token

(tokens: Token[] | TokensList, callback: (token: Token) => MaybePromise | MaybePromise[])

   * Run callback for every token
   */
  walkTokens(tokens: Token[] | TokensList, callback: (token: Token) => MaybePromise | MaybePromise[]) {
    let values: MaybePromise[] = [];
    for (const token of tokens) {
      values = values.concat(callback.call(this, token));
      switch (token.type) {
        case 'table': {
          const tableToken = token as Tokens.Table;
          for (const cell of tableToken.header) {
            values = values.concat(this.walkTokens(cell.tokens, callback));
          }
          for (const row of tableToken.rows) {
            for (const cell of row) {
              values = values.concat(this.walkTokens(cell.tokens, callback));
            }
          }
          break;
        }
        case 'list': {
          const listToken = token as Tokens.List;
          values = values.concat(this.walkTokens(listToken.items, callback));
          break;
        }
        default: {
          const genericToken = token as Tokens.Generic;
          if (this.defaults.extensions?.childTokens?.[genericToken.type]) {
            this.defaults.extensions.childTokens[genericToken.type].forEach((childTokens) => {
              const tokens = genericToken[childTokens].flat(Infinity) as Token[] | TokensList;
              values = values.concat(this.walkTokens(tokens, callback));
            });
          } else if (genericToken.tokens) {
            values = values.concat(this.walkTokens(genericToken.tokens, callback));
          }
        }
      }
    }
    return values;
  }

  use(...args: MarkedExtension<ParserOutput, RendererOutput>[]) {
    const extensions: MarkedOptions<ParserOutput, RendererOutput>['extensions'] = this.defaults.extensions || { renderers: {}, childTokens: {} };