On Tue, Oct 02, 2018 at 05:28:01PM -0700, ToddAndMargo wrote: : On 10/2/18 11:23 AM, Ralph Mellor wrote: : >So, to recap: a postfix `[]` acts on whatever is on its left, : >pulling out elements from the thing on its left, treated as : >a list like thing, with the elements selected according to : >the index(es) inside the brackets. : > : : : Perfect! Thank you! : : I am going to quote you in my write up. : : Question: in Perl syntaxland, is "postfix" short : for "postcircumfix"?
Kinda the other way around. A postcircumfix is just a special kind of postfix that happens to enclose an extra argument, with the result that, while your typical postfix has only one argument (like the $a of $a++), your typical postcircumfix has two (like the @a and 42 of @a[42]). The second syntactic argument is often interpreted as a slice or an function argument list later on, but syntactically it's just a single expression inside the bracketing chars. So in @a[42,43], there are still only two arguments, @a array and the 42,43 list expression. Larry
