gistfile1.rb

Pry.instance_eval do
  def show_lines(file, line_num, klass, num = nil)
    if file =~ /(\(.*\))|<.*>/ || file == "" || file == "-e"
      output.puts "Cannot find local context. Did you use `binding.pry` ?"
      next
    end

    Pry.output.puts "\n\e[1mFrom:\e[0m #{file} @ line #{line_num} in #{klass}:\n\n"

    if num
      i_num = num.to_i
    else
      i_num = 5
    end

    File.open(file).each_with_index do |line, index|
      line_n = index + 1
      next unless line_n > (line_num - i_num - 1)
      break if line_n > (line_num + i_num)
      if line_n == line_num
        code =" =>#{line_n.to_s.rjust(3)}: #{line.chomp}"
        if Pry.color
          code = CodeRay.scan(code, :ruby).term
        end
        output.puts code
        code
      else
        code = "#{line_n.to_s.rjust(6)}: #{line.chomp}"
        if Pry.color
          code = CodeRay.scan(code, :ruby).term
        end
        output.puts code
        code
      end
    end
  end
end