class RuboCop::Cop::Layout::EndOfLine
This cop checks for Windows-style line endings in the source code.
Constants
- MSG_DETECTED
- MSG_MISSING
Public Instance Methods
investigate(processed_source)
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# File lib/rubocop/cop/layout/end_of_line.rb, line 12 def investigate(processed_source) last_token = processed_source.tokens.last last_line = last_token ? last_token.pos.line : processed_source.lines.length processed_source.raw_source.each_line.with_index do |line, index| break if index >= last_line msg = offense_message(line) next unless msg next if unimportant_missing_cr?(index, last_line, line) range = source_range(processed_source.buffer, index + 1, 0, line.length) add_offense(nil, location: range, message: msg) # Usually there will be carriage return characters on all or none # of the lines in a file, so we report only one offense. break end end
offense_message(line)
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# File lib/rubocop/cop/layout/end_of_line.rb, line 37 def offense_message(line) effective_style = if style == :native Platform.windows? ? :crlf : :lf else style end case effective_style when :lf then MSG_DETECTED if line =~ /\r$/ else MSG_MISSING if line !~ /\r$/ end end
unimportant_missing_cr?(index, last_line, line)
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If there is no LF on the last line, we don't care if there's no CR.
# File lib/rubocop/cop/layout/end_of_line.rb, line 33 def unimportant_missing_cr?(index, last_line, line) style == :crlf && index == last_line - 1 && line !~ /\n$/ end