2015-06-14 It's often worthwhile to split the solution for a problem into separated tasks. An ideal case for such a separate task is input normalization. This makes both parts, the input normalization and the main data processing, much simpler and further input formats may easily be added later on. [0] [0] https://debianforum.de/forum/viewtopic.php?f=34&t=155934#p1046651 http://marmaro.de/lue/ markus schnalke