Contents

# encoding: utf-8

module Rubocop
  module Cop
    module Style
      # This cops checks for two or more consecutive blank lines.
      class EmptyLines < Cop
        MSG = 'Extra blank line detected.'
        LINE_OFFSET = 2

        def investigate(processed_source)
          return if processed_source.tokens.empty?

          prev_line = 1

          processed_source.tokens.each do |token|
            cur_line = token.pos.line
            line_diff = cur_line - prev_line

            if line_diff > LINE_OFFSET
              # we need to be wary of comments since they
              # don't show up in the tokens
              ((prev_line + 1)...cur_line).each do |line|
                # we check if the prev and current lines are empty
                if processed_source[line - 2].empty? &&
                    processed_source[line - 1].empty?
                  range = source_range(processed_source.buffer,
                                       processed_source[0...(line - 1)],
                                       0,
                                       1)
                  add_offence(:convention, range, MSG)
                end
              end
            end

            prev_line = cur_line
          end
        end
      end
    end
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
rubocop-0.12.0	lib/rubocop/cop/style/empty_lines.rb
rubocop-0.11.1	lib/rubocop/cop/style/empty_lines.rb
rubocop-0.11.0	lib/rubocop/cop/style/empty_lines.rb
rubocop-0.10.0	lib/rubocop/cop/style/empty_lines.rb