E-mail address validator

email-validator.js

var emailValidator = function(s) {

  s = $.trim(s);
  var name, addr, p = s.indexOf('<');

  if (p >= 0 && s.charAt(s.length - 1) == '>') {
    name = $.trim(s.substring(0, p));
    addr = s.substring(p+1, s.length - 1);
  } else {
    addr = s;
  }

  if (name) {
    // check quote
    if (!name.match(/^(["'])[^"']+\1$|^[^"']+$/)) return false;

  }

  return !!addr.match(/^[-0-9A-Za-z!#$%&'*+\/=?^_`{|}~.]+@[-0-9A-Za-z!#$%&'*+\/=?^_`{|}~.]+/);
}