Re: Reading Someone's Program

[moritz]

I'm sure you'll find lots of discussions when you search for "legacy code".

Just two points:

App::Ack is like a better grep, and very valuable for finding where specific variables/functions/methods are used.

The more change, the more you break. If lots of work has been put into the old code base, it might be worth to change only the bits you need to change, instead of introducing massive-scale changes like porting all classes to Moose. (Of course that doesn't apply if you have to touch nearly all code anyway).