The idea is like what crdoconnor mentioned - it's good design to strictly separate 'data' from 'code', and most configurations are 'data'. Unfortunately, in pra

The idea is like what crdoconnor mentioned - it's good design to strictly separate 'data' from 'code', and most configurations are 'data'. Unfortunately, in practice there are plenty of times when a small loop or a conditional would greatly enhance DRY in config files.