lib/lrama/grammar/parameterizing_rules/builder/option.rb in lrama-0.5.10 vs lib/lrama/grammar/parameterizing_rules/builder/option.rb in lrama-0.5.11

@@ -1,17 +1,25 @@
 module Lrama
   class Grammar
     class ParameterizingRules
       class Builder
+        # Builder for option of general parameterizing rules
         class Option < Base
+
+          # program: option(number)
+          #
+          # =>
+          #
+          # program: option_number
+          # option_number: ε
+          # option_number: number
           def build
             validate_argument_number!
 
             rules = []
-            option_token = Lrama::Lexer::Token::Ident.new(s_value: "option_#{@token.s_value}")
-            rules << Rule.new(id: @rule_counter.increment, _lhs: @lhs, _rhs: [option_token], token_code: @user_code, precedence_sym: @precedence_sym, lineno: @line)
-            rules << Rule.new(id: @rule_counter.increment, _lhs: option_token, _rhs: [], token_code: @user_code, precedence_sym: @precedence_sym, lineno: @line)
-            rules << Rule.new(id: @rule_counter.increment, _lhs: option_token, _rhs: [@token], token_code: @ser_code, precedence_sym: @precedence_sym, lineno: @line)
+            @build_token = Lrama::Lexer::Token::Ident.new(s_value: "option_#{@token.s_value}")
+            rules << Rule.new(id: @rule_counter.increment, _lhs: @build_token, _rhs: [], lhs_tag: @lhs_tag, token_code: @user_code, precedence_sym: @precedence_sym, lineno: @line)
+            rules << Rule.new(id: @rule_counter.increment, _lhs: @build_token, _rhs: [@token], lhs_tag: @lhs_tag, token_code: @user_code, precedence_sym: @precedence_sym, lineno: @line)
             rules
           end
         end
       end
     end