Table of Content Builder for Markdown (use with vite-plugin-md)

toc-builder.ts

// src/builders/toc-builder.ts

import { createBuilder, PipelineStage } from "@yankeeinlondon/builder-api"
import Toc from 'markdown-it-toc-done-right'

const tocBuilder = createBuilder('toc', PipelineStage.parser)
  .options()
  .initializer()
  .handler(
      async (payload, _) => {
        payload.parser.use(Toc)
        payload.md = '[[toc]]\n\n' + payload.md
        return payload
      }
  )
  .meta()

export default tocBuilder

vite.config.ts

import { defineConfig } from 'vite'
import Markdown from 'vite-plugin-md'
import toc from './src/builders/toc-builder'

export default defineConfig({
  // Other Vite configs

  plugins: [
    // Other plugin configs 

    // https://github.com/antfu/vite-plugin-vue-markdown
    Markdown({
      // Other plugin options

      builders: [
        // Other builders

        toc(),
      ],
    }),
})