On Tue, May 02, 2006 at 02:27:28PM +0200, Mirko Rahn wrote:
But how to handle dependencies between options using this technique? I can image two solutions: 1: Every dependency 'a implies b' has to be checked in both functions, the one for a and the one for b. 2: An order for the actions has to be specified, maybe by decorating the option list with priorities. 3: Handle some (not all) options in a sum-type fashion
In contrast the sum-type technique first reads all options and then post-processes the complete set. Here the order of options on the commandline has no impact on the final result.
I forgot to show that you can still use old style option handling for some options. This way you can gradually move from sum-type style to product-type style. Best regards Tomasz