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  class RouteRecognizer
    attr_reader :paths
    
    # To use this inside your app, call:
    # `RouteRecognizer.new.initial_path_segments`
    # This returns an array, e.g.: ['assets','blog','team','faq','users']

    INITIAL_SEGMENT_REGEX = %r{^\/([^\/\(:]+)}

    def initialize
      routes = Rails.application.routes.routes
      @paths = routes.collect {|r| r.path.spec.to_s }
    end

    def initial_path_segments
      @initial_path_segments ||= begin
        paths.collect {|path| match_initial_path_segment(path)}.compact.uniq
      end
    end

    def match_initial_path_segment(path)
      if match = INITIAL_SEGMENT_REGEX.match(path)
        match[1]
      end
    end
  end