HTML to MD by Node

app.js

"use strict";

var fs = require('fs');
var md = require('to-markdown');
var ic = require('iconv-lite');

var src = 'docs';
var dist = 'dist';

fs.readdir(src, (err, contents) => {
	contents.forEach((file, i) => {
		if (file.match('.html')) { 
			fs.readFile(`./${src}/${file}`, (err, data) => {
				let dir = `./${dist}/part-${/[0-9]+/.exec((/№[0-9]+/.exec(file))[0])}/`;
				// extract lab num from file<string>
				let filename = file.replace('.html', '.md').replace(file.substring(0, file.indexOf('.html')), 'index');
				fs.mkdirSync(dir);
				fs.appendFile(`${dir}/${filename}`, md(ic.decode(new Buffer(data), "windows1251"), {gfm: true}));
			})
		} // if
	})
});