new

# File actionpack/lib/action_dispatch/journey/path/pattern.rb, line 13
        def initialize(strexp)
          @spec         = strexp.ast
          @requirements = strexp.requirements
          @separators   = strexp.separators.join
          @anchored     = strexp.anchor

          @names          = nil
          @optional_names = nil
          @required_names = nil
          @re             = nil
          @offsets        = nil
        end