readline.js for md

Readline.js

const readline = require('readline')
const fs = require('fs')
const { format } = require('util')

async function start() {
  const rl = readline.createInterface({
    input: fs.createReadStream('./text.html'),
    crlfDelay: Infinity
  })
  
  let getYaml = false;
  let yamlText = '';
  let htmlText = '';
  rl.on('line', (line) => {
    if (line === '==') {
      getYaml = true
      return;
    }

    if (!getYaml) {
      yamlText += format('%s\n', line)
    } else {
      htmlText += format('%s\n', line)
    }
  })

  await new Promise(resolve => rl.on('close', resolve))
  console.log('<<< END >>>')
  console.log('YAML: ', yamlText)
  console.log('HTML: ', htmlText)
}

start()