Module: DataMapper::Validations::Format::Email

Included in:

DataMapper::Validations::FormatValidator

Defined in:

lib/dm-validations/formats/email.rb

Constant Summary

EmailAddress =

Almost RFC2822 (No attribution reference available).

This differs in that it does not allow local domains (test@localhost). 99% of the time you do not want to allow these email addresses in a public web application.

begin
  if (RUBY_VERSION == '1.9.2' && RUBY_ENGINE == 'jruby' && JRUBY_VERSION <= '1.6.3') || RUBY_VERSION == '1.9.3'
    # There is an obscure bug in jruby 1.6 that prevents matching
    # on unicode properties here. Remove this logic branch once
    # a stable jruby release fixes this.
    #
    # http://jira.codehaus.org/browse/JRUBY-5622
    #
    # There is a similar bug in preview releases of 1.9.3
    #
    # http://redmine.ruby-lang.org/issues/5126
    letter = 'a-zA-Z'
  else
    letter = 'a-zA-Z\p{L}'  # Changed from RFC2822 to include unicode chars
  end
  digit          = '0-9'
  atext          = "[#{letter}#{digit}\!\#\$\%\&\'\*+\/\=\?\^\_\`\{\|\}\~\-]"
  dot_atom_text  = "#{atext}+([.]#{atext}*)+"
  dot_atom       = dot_atom_text
  no_ws_ctl      = '\x01-\x08\x11\x12\x14-\x1f\x7f'
  qtext          = "[^#{no_ws_ctl}\\x0d\\x22\\x5c]"  # Non-whitespace, non-control character except for \ and "
  text           = '[\x01-\x09\x11\x12\x14-\x7f]'
  quoted_pair    = "(\\x5c#{text})"
  qcontent       = "(?:#{qtext}|#{quoted_pair})"
  quoted_string  = "[\"]#{qcontent}+[\"]"
  atom           = "#{atext}+"
  word           = "(?:#{atom}|#{quoted_string})"
  obs_local_part = "#{word}([.]#{word})*"
  local_part     = "(?:#{dot_atom}|#{quoted_string}|#{obs_local_part})"
  dtext          = "[#{no_ws_ctl}\\x21-\\x5a\\x5e-\\x7e]"
  dcontent       = "(?:#{dtext}|#{quoted_pair})"
  domain_literal = "\\[#{dcontent}+\\]"
  obs_domain     = "#{atom}([.]#{atom})+"
  domain         = "(?:#{dot_atom}|#{domain_literal}|#{obs_domain})"
  addr_spec      = "#{local_part}\@#{domain}"
  pattern        = /\A#{addr_spec}\z/u
end

Class Method Summary

• .included(base) ⇒ Object

Class Method Details

.included(base) ⇒ Object

# File 'lib/dm-validations/formats/email.rb', line 8

def self.included(base)
  DataMapper::Validations::FormatValidator::FORMATS.merge!(
    :email_address => [
      EmailAddress,
      lambda { |field, value|
        '%s is not a valid email address'.t(value)
      }
    ]
  )
end