chrisjrob, 11 months ago

@sekenre I'd expect it to print:
func array foo hash bar baz foo bar
The fact you say it is a puzzle makes me doubt myself...!

sekenre, 11 months ago

@chrisjrob I was teaching my co-workers some perl and we came up with this example of maximum sigil/variable name confusion. So it's more of a puzzle if you've never seen perl before.

sekenre, 11 months ago

@chrisjrob I still have no idea how the perl interpreter resolves these situations.

yzh, 11 months ago

@sekenre @chrisjrob I'm not an expert at all in how the Perl interpreter works, but I do work with Perl a lot. I think the sigils are what makes what's going on in code like that pretty much unambiguous. One of the reasons I like Perl, and the use of sigils, a lot.

I think if you understand enough Perl, and how the sigils change to indicate the type of data, you'll think it's pretty straightforward.

sekenre, 11 months ago

@yzh @chrisjrob Yep. My students, (python devs all) were playing "what if?" and we came up with a toy example.

barubary, 11 months ago

@sekenre @chrisjrob I feel like you could eke out more confusion by adding references to the mix.

sub bork { "bork", "copper" }<br></br>my $bork = [["simple", "day"], "frog"];<br></br>my @bork = (["banana", "apple"], ("sweet", "cloud"));<br></br>my %bork = (<br></br>    "enigma" => 42,<br></br>    "copper" => "red",<br></br>    "bork"   => "doge",<br></br>    "sweet"  => "corn",<br></br>    "cloud"  => "strife",<br></br>);<br></br>print "1. ", join(" ", $bork, bork, $bork{ bork }, $bork{+bork }, $bork{(bork)}), "n";<br></br>print "2. ", join(" ", $bork[1], $bork->[1], $$bork[1]), "n";<br></br>print "3. ", join(" ", $bork[0][1], $bork[0]->[1], $bork->[0][1], $bork->[0]->[1], $$bork[0][1], $$bork[0]->[1], ${$bork}[0][1], ${$bork[0]}[1], ${$bork->[0]}[1]), "n";<br></br>print "4. ", join(" ", @bork, @$bork, @$bork[1], @{$bork[0]}, @bork{bork}, @bork{@bork}, @bork{bork, "bork"}), "n";<br></br>

PS: No, I've never seen anything like this in real-world code.
PPS: Ignore the warnings. 🙂

sekenre, 11 months ago

@barubary @chrisjrob @bork omg. I love it! 🙏