BTW, the source for Panda is very clear and readable, I was just glancing it and am able to reason about it even though I only superficially know Perl 5 to writ

BTW, the source for Panda is very clear and readable, I was just glancing it and am able to reason about it even though I only superficially know Perl 5 to write some dirty scripts and the code is sparsely commented.