Re^2: Seemingly enigmatic data structures

[tphyahoo]

• must be used in one place
• must not be used in one place

isn't this a contradiction?

UPDATE: Ah, OK, I get it now, more or less. Though I do think that could have been more clearly worded.

"...first data structure level of a reference" is pretty gibberishy to me. But the examples make it more or less clear.

[merlyn]

Another simpler rule is:

Arrows are optional between subscripty kinds of things (brackets, braces, parens).

[tphyahoo]

Thinking "between" helps. But wouldn't that just be brackets and braces? Where are arrows optional between parens?

[Joost]

In cases like this:

#!perl -w
use strict;

my $a = sub { sub { "thingy" } };

print $a->()();