m.each_with_index do |item,idx|
    item = m.shift
    case
    when !item[0].nil?  # Case of the starting part
      result << e_sn(item[0])
    when !item[1].nil?  # Case of a parameter of the form "name" ( or ...)
      result << "#{idx==1?"":",${#{index+=1}:}"}${#{index+=1}:#{e_sn(item[1])}}#{idx==1?"":"}"}"
    when item[2].nil?   # Case of the last parenthesis
      result << item[6]
    when item[5].nil?   # Case of "name = item"
      result << "${#{index+=1}:#{idx==1?"":","}#{e_sn(item[3])}${#{index+=1}:#{e_sn(item[4])}}}"
    else  # Case of "name = \"item\""
      result << "${#{index+=1}:#{idx==1?"":","}#{e_sn(item[3])}\"${#{index+=1}:#{e_sn(item[5])}}\"}"
    end
  end