class Regexp::Syntax::V2_0_0

use the last 1.9 release as the base

def initialize 

def initialize
  super
  implements :keep,        Keep::All
  implements :conditional, Conditional::All
  implements :property,    UnicodeProperty::V2_0_0
  implements :nonproperty, UnicodeProperty::V2_0_0
  implements :type,        CharacterType::Clustered
  excludes   :property,    :newline
  excludes   :nonproperty, :newline
end