I think the Perl case is where each one handles a different subset of cases particular to the needs of the author. The fact that there are so many variations in

I think the Perl case is where each one handles a different subset of cases particular to the needs of the author. The fact that there are so many variations in a solution space reflects the no 'go to' solution(s) that handle most edge cases. This is more indicative of the "there's more than one way to do it" ecosystem than the language itself.