module HighLine::BuiltinStyles::ClassMethods

def const_missing(name)
  raise NameError, "Bad color or uninitialized constant #{name}" unless
    name.to_s =~ RGB_COLOR_PATTERN
  on = Regexp.last_match(1)
  suffix = Regexp.last_match(4)
  code_name = if suffix
                Regexp.last_match(1).to_s +
                  Regexp.last_match(2) +
                  Regexp.last_match(3)
              else
                name.to_s
              end
  style_name = code_name + "_STYLE"
  style = Style.rgb(Regexp.last_match(3))
  style = style.on if on
  const_set(style_name, style)
  const_set(code_name, style.code)
  suffix ? style : style.code
end