weseek__growi/packages/app/src/client/util/markdown-it/toc-and-anchor.js

import markdownItEmojiMart from 'markdown-it-emoji-mart';
import markdownItToc from 'markdown-it-toc-and-anchor-with-slugid';

import { emojiMartData } from './emoji-mart-data';

export default class TocAndAnchorConfigurer {

  configure(md) {
    md.use(markdownItEmojiMart, { defs: emojiMartData })
      .use(markdownItToc, {
        tocLastLevel: 3,
        anchorLinkBefore: false,
        anchorLinkSymbol: '',
        anchorLinkSymbolClassName: 'icon-link',
        anchorClassName: 'revision-head-link',
      });

    // set toc render function
    md.set({
      tocCallback: (tocMarkdown, tocArray, tocHtml) => {
        // eslint-disable-next-line no-undef
        globalEmitter.emit('renderTocHtml', tocHtml);
      },
    });
  }

}