programming

Last week I needed a way of converting a two-dimensional array, in perl, into a tree-like datastructure.
While seemingly trivial, the convoluted use of references when passing around arrays and hashes between perl function calls -- recursive calls, in this case -- made this a mind-boggling exercise to me. (the fact that I hadn't seriously used perl in the last eight years might have had part in that, too)

Below the jump is my implementation, debugging info left in and all. If it's useful for someone, that's great; if not, ... well, except for my mental sanity no harm was done in writing this, either :) Continue reading "Perl hash tree helper"