class Regexp::Expression::Base

def initialize(token, options = {})
  self.type              = token.type
  self.token             = token.token
  self.text              = token.text
  self.ts                = token.ts
  self.level             = token.level
  self.set_level         = token.set_level
  self.conditional_level = token.conditional_level
  self.quantifier        = nil
  self.options           = options
end