Do we have a DRY issue?

Hi All,

do we have a DRY problem? E.g. check this patch of mine: https://gitext.gfz-potsdam.de/segl/EnPT/commit/e62d595d065855226c840a349692cbd5f9789b06

This style seems over-complicated and error-prone to me. What do you think?

Best, André