class ERB::Compiler::TrimScanner

def trim_line1(line)
  line.scan(@scan_reg) do |tokens|
    tokens.each do |token|
      next if token.empty?
      if token == "%>\n" || token == "%>\r\n"
        yield('%>')
        yield(:cr)
      else
        yield(token)
      end
    end
  end
end