Check if some URL is valid and if it is shorted

checkValidAndShortedUrl.js

// checkValidAndShortedUrl.js
// reference
// http://answers.oreilly.com/topic/280-how-to-validate-urls-with-regular-expressions/

function checkValidURL(url) {
  var pattern = /(http|https):\/\/([a-z0-9-]+((\.[a-z0-9-]+)+)?)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/;
  return pattern.test(url);
}

function checkUrlShorted(url) {
  var pattern = /(http|https):\/\/([a-z0-9-]+((\.[a-z0-9-]+)+)?)(:[0-9]+)?(\/([a-zA-Z0-9]{1,4}))?(\/([a-zA-Z0-9]{5,32}))$/;
  return pattern.test(url);
}

function checkUrl(url) {
  console.log(
    'isURL : ' + checkValidURL(url) +  '\t| ' +
    'isShorted : ' + checkUrlShorted(url) + '\t| ' +
    '> ' + url
  );
}

checkUrl('123');
checkUrl('123.com');

checkUrl('.com');
checkUrl('http://.com');

checkUrl('localhost');
checkUrl('localhost:8080');

checkUrl('http://123.ext');
checkUrl('http://localhost');
checkUrl('http://localhost:8080');

checkUrl('google.com');
checkUrl('http://www.google.com');
checkUrl('https://www.google.com');

checkUrl('http://sub.domain.ext');
checkUrl('http://sub.domain.ext:8080');

checkUrl('http://t.co');
checkUrl('http://.co/VjpSr4');

checkUrl('http://c9.io');

checkUrl('http://www.adobe.com/devnet/');

checkUrl('https://gist.github.com/3920081'); /* review pattern for url shorted */

checkUrl('http:/t.co/VjpSr4');
checkUrl('http://adobe.ly/VjpSr4');
checkUrl('http://dlvr.it/Y5FpQ');
checkUrl('http://bit.ly/lEkwhk');
checkUrl('http://j.mp/lzxisx');
checkUrl('http://goo.gl/quUx1');
checkUrl('http://goo.gl/fb/Wv5G7');

/* result

isURL : false | isShorted : false | > 123
isURL : false | isShorted : false | > 123.com
isURL : false | isShorted : false | > .com
isURL : false | isShorted : false | > http://.com
isURL : false | isShorted : false | > localhost
isURL : false | isShorted : false | > localhost:8080
isURL : true  | isShorted : false | > http://localhost
isURL : true  | isShorted : false | > http://localhost:8080
isURL : false | isShorted : false | > google.com
isURL : true  | isShorted : false | > http://www.google.com
isURL : true  | isShorted : false | > https://www.google.com
isURL : true  | isShorted : false | > http://sub.domain.ext
isURL : true  | isShorted : false | > http://sub.domain.ext:8080
isURL : true  | isShorted : false | > http://t.co
isURL : false | isShorted : false | > http://.co/VjpSr4
isURL : true  | isShorted : false | > http://c9.io
isURL : true  | isShorted : false | > http://www.adobe.com/devnet/
isURL : true  | isShorted : true  | > https://gist.github.com/3920081
isURL : false | isShorted : false | > http:/t.co/VjpSr4
isURL : true  | isShorted : true  | > http://adobe.ly/VjpSr4
isURL : true  | isShorted : true  | > http://dlvr.it/Y5FpQ
isURL : true  | isShorted : true  | > http://bit.ly/lEkwhk
isURL : true  | isShorted : true  | > http://j.mp/lzxisx
isURL : true  | isShorted : true  | > http://goo.gl/quUx1
isURL : true  | isShorted : true  | > http://goo.gl/fb/Wv5G7

*/