Google Apps Script for getting Google+ ProfileId by url

getGooglePlusProfileId.js

 /**
 * @desc This is an Google Apps Script for getting Google+ ProfileId by url
 * @author Misha M.-Kupriyanov https://plus.google.com/104512463398531242371/
 * @link https://gist.github.com/5520613
 */
function testGetGooglePlusProfileId() {
  Logger.log('profileId:' + getGooglePlusProfileId('104512463398531242371'));
  
  Logger.log('profileId:' + getGooglePlusProfileId('https://plus.google.com/u/0/+GoogleDevelopers/about'));
  Logger.log('profileId:' + getGooglePlusProfileId('https://plus.google.com/u/1/+GoogleDevelopers/'));
  Logger.log('profileId:' + getGooglePlusProfileId('https://plus.google.com/+GoogleDevelopers'));
  Logger.log('profileId:' + getGooglePlusProfileId('https://plus.google.com/+GoogleDevelopers/about'));
  Logger.log('profileId:' + getGooglePlusProfileId('https://plus.google.com/+GoogleDevelopers/'));

  Logger.log('profileId:' + getGooglePlusProfileId('https://plus.google.com/u/0/104512463398531242371/about'));
  Logger.log('profileId:' + getGooglePlusProfileId('https://plus.google.com/u/1/104512463398531242371/'));
  Logger.log('profileId:' + getGooglePlusProfileId('https://plus.google.com/104512463398531242371'));
  Logger.log('profileId:' + getGooglePlusProfileId('https://plus.google.com/104512463398531242371/about'));
  Logger.log('profileId:' + getGooglePlusProfileId('https://plus.google.com/104512463398531242371/'));

}


function getGooglePlusProfileId(url) {
  var profileId = null;
  var qRe = new RegExp("^([0-9]+)$");
  var urlTest = qRe.exec(url);
  
  
  if (urlTest != null) {
    profileId = urlTest[1];
  } else {
    qRe = new RegExp("^https://plus.google.com/(u/[0-9]/|)([0-9]+)(/[a-z]+|)(/|)$");
    urlTest = qRe.exec(url);
    
    if (urlTest != null) {
      Logger.log(urlTest);
      profileId = urlTest[2];
    } else {
      qRe = new RegExp("^https://plus.google.com/(u/[0-9]/|)(\\+[A-Za-z0-9]+)(/[a-z]+|)(/|)$");
      urlTest = qRe.exec(url);
      
      Logger.log(urlTest);
      profileId = urlTest[2];
      
    }
    
  }
  
  if (!profileId) {
    throw 'failed to get profile Id';
  }
  
  return profileId;
}