index.js

'use strict';

var stripColorCodes = require('stripcolorcodes');
var ultramarked = require('ultramarked');
var cheerio = require('cheerio');
var htmlmd = require('html-md-2');
var he = require('he');

function filterInput (input, options) {
  if (!options.ignore && !options.root) {
    return input;
  }
  var $ = cheerio.load(input);
  var ignored;
  var ignores = options.ignore;
  var rooted = $;
  var root = options.root;
  if (root) {
    rooted = rooted(root).eq(0);
  }
  if (ignores) {
    ignored = Array.isArray(ignores) ? ignores.join(',') :  ignores;
    rooted.find(ignored).remove();
  }
  var html = rooted.html();
  return html;
}

function parse (input, options) {
  var o = options || {};
  if (!o.root) { o.root = 'body,*'; }
  var html = filterInput(input, o);
  if (o.html) {
    return sanitize(html);
  }
  var md = htmlmd(html);
  if (o.markdown) {
    return sanitize(md);
  }
  var term = ultramarked(md, { terminal: true });
  var stripped = stripColorCodes(term);
  var sanitized = sanitize(stripped);
  return sanitized;
}

function sanitize (input) {
  var decoded = he.decode(input);
  var trimmed = decoded.trim();
  return trimmed;
}

module.exports = parse;