JezK

Name: test
Start: 2022-11-25
End: 2022-11-25

Edit File: choice.rb

module Treetop
  module Compiler
    class Choice < ParsingExpression
      def compile(address, builder, parent_expression = nil)
        super
        begin_comment(self)
        use_vars :result, :start_index
        compile_alternatives(alternatives, parent_expression)
        end_comment(self)
      end

def compile_alternatives(alternatives, parent_expression)
        obtain_new_subexpression_address
        alternatives.first.compile(subexpression_address, builder)
        builder.if__ subexpression_success? do
          # Undo lazy instantiation:
          builder << "#{subexpression_result_var} = SyntaxNode.new(input, (index-1)...index) if #{subexpression_result_var} == true"
          assign_result subexpression_result_var
          extend_result_with_declared_module
          extend_result_with_inline_module parent_expression
        end
        builder.else_ do
          if alternatives.size == 1
            reset_index
            assign_failure start_index_var
          else
            compile_alternatives(alternatives[1..-1], parent_expression)
          end
        end
      end

def expected
        '"(any alternative)"'
      end
    end
  end
end

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Dies ist ein Test

Datum

25 Nov. 2022

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13:00 - 18:00

JezK

Edit File: choice.rb

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