Some of it I recognize as being an artefact of the time, when conciseness really mattered. But it's still obnoxious in 2025.
The whole thing reminds me of D&D, which is full of classes & spells that only exist in modern D&D because of One Guy who happened to be at the table with Gygax, who really wanted to be a wuxia guy he saw in a movie, or because he really wanted a spell to be applicable for that one night at the table, and now it's hard-coded into the game.
Yes, one can write obscure perl code and some love perl golfing. In the same way there is an IOCCC which delights in unreadable code, it doesn't mean that the C language should be relegated to the dustbin. The answer is to write readable code, no matter which language is in use.
- Why is there a `1;` on a single line in the middle of this file?
- What is `$_`?
- This parallel execution manager doesn't actually seem to define what code needs to run in parallel in any specific way, how does this work?
- What is this BEGIN block at the start of this Perl file? Why is that necessary?
- What's going on with qx, qw, qq?
- What does chomp do when it's just on its own line, with no arguments given to it?
$_ is inscrutable if you haven't studied perl, but the same thing would happen to anyone who sees a python decorator for the first time. what does "else: do after a while loop in python? Only people who know python know what it does (and I suspect most don't). The different quoting operators are also trivial to learn. In comparison, yield from python is also simple syntax but the semantics are much more involved.
BEGIN? Take 60 seconds to read what it means. And if you knew awk, you'd not have to do that, as it was directly lifted from awk.