text: exports.email = email
  exports.pw = pw
  exports.username = username
  
  var requirements = exports.requirements = {
    username: {
      length: 'Name length must be less than or equal to 214 characters long',
      lowerCase: 'Name must be lowercase',
      urlSafe: 'Name may not contain non-url-safe chars',
      dot: 'Name may not start with "."'
    },
    password: {},
    email: {
      valid: 'Email must be an email address'
    }
  };
  
  function username (un) {
    if (un !== un.toLowerCase()) {
      return new Error(requirements.username.lowerCase)
    }
  
    if (un !== encodeURIComponent(un)) {
      return new Error(requirements.username.urlSafe)
    }
  
    if (un.charAt(0) === '.') {
      return new Error(requirements.username.dot)
    }
  
    if (un.length > 214) {
      return new Error(requirements.username.length)
    }
  
    return null
  }
  
  function email (em) {
    if (!em.match(/^.+@.+\..+$/)) {
      return new Error(requirements.email.valid)
    }
  
    return null
  }
  
  function pw (pw) {
    return null
  }
  