class Treetop::Compiler::Repetition

def compile(address, builder, parent_expression)
  super
  repeated_expression = parent_expression.atomic
  begin_comment(parent_expression)
  use_vars :result, :accumulator, :start_index
  builder.loop do
    obtain_new_subexpression_address
    repeated_expression.compile(subexpression_address, builder)
    builder.if__ subexpression_success? do
      accumulate_subexpression_result
    end
    builder.else_ do
      builder.break
    end
  end
end