Contents

module Sexpr
  module Matcher
    class Reference
      include Matcher

      attr_reader :rule_name
      attr_reader :grammar

      def initialize(rule_name, grammar)
        @rule_name = rule_name
        @grammar   = grammar
      end

      def rule
        @rule ||= @grammar[@rule_name]
      end

      def match?(sexp)
        rule && rule.match?(sexp)
      end

      def eat(sexp)
        rule && rule.eat(sexp)
      end

      def inspect
        "(ref #{rule_name}, #{rule.inspect})"
      end

    end # class Reference
  end # module Matcher
end # module Sexpr

Version data entries

7 entries across 7 versions & 1 rubygems

Version	Path
sexpr-1.1.0	lib/sexpr/matcher/reference.rb
sexpr-1.0.0	lib/sexpr/matcher/reference.rb
sexpr-0.6.0	lib/sexpr/matcher/reference.rb
sexpr-0.5.1	lib/sexpr/matcher/reference.rb
sexpr-0.5.0	lib/sexpr/matcher/reference.rb
sexpr-0.4.0	lib/sexpr/matcher/reference.rb
sexpr-0.3.0	lib/sexpr/matcher/reference.rb