voc-cli/bin/dic/webster.js

download and play English vocabularies' audio via command line

'use strict';

var _async_ = require('co').wrap;
var fetch = require('node-fetch');
var cheerio = require('cheerio');
var normalize = require('../lib/normalize');

module.exports = _async_(regeneratorRuntime.mark(function _callee(word) {
  var url, res, err, set, html, $, list, _err;

  return regeneratorRuntime.wrap(function _callee$(_context) {
    while (1) {
      switch (_context.prev = _context.next) {
        case 0:
          word = normalize(word);

          url = 'https://www.merriam-webster.com/dictionary/' + word;
          _context.next = 4;
          return fetch(url, { timeout: 10 * 1000 });

        case 4:
          res = _context.sent;

          if (!(res.status !== 200)) {
            _context.next = 9;
            break;
          }

          err = new Error('\'' + word + '\' is not found from webster');

          err.code = 'ENOENT';
          throw err;

        case 9:
          set = {};
          _context.next = 12;
          return res.text();

        case 12:
          html = _context.sent;
          $ = cheerio.load(html);

          $('.play-pron').each(function (index, element) {
            var ele = $(element);
            var term = ele.prev().text().toLowerCase();
            var lang = ele.attr('data-lang').replace(/_/g, '/');
            var dir = ele.attr('data-dir');
            var file = ele.attr('data-file');
            var audio = 'https://media.merriam-webster.com/audio/prons/' + lang + '/mp3/' + dir + '/' + file + '.mp3';
            if (word === term) {
              set[audio] = true;
            }
          });

          list = Object.keys(set);

          if (!(list.length === 0)) {
            _context.next = 20;
            break;
          }

          _err = new Error('\'' + word + '\' has no audio from webster');

          _err.code = 'ENOENT';
          throw _err;

        case 20:

          // show all the audio url
          if (list.length > 1) {
            list.forEach(function (audio, i) {
              console.log(i + 1 + '. ' + audio);
            });
          }

          // return the first audio from list
          return _context.abrupt('return', list[0]);

        case 22:
        case 'end':
          return _context.stop();
      }
    }
  }, _callee, this);
}));