Another recursive solution using a subroutine that takes a block of code to execute against a "chunked" list.

use strict;
use warnings;

use 5.010;

sub groupsOf (&$@);

my @list = ( q{a} .. q{z} );

say for groupsOf { qq{@_,} } 5, @list;
say for groupsOf { qq{@_,} } 7, @list;

sub groupsOf (&$@)
{
    my $rcToRun  = shift;
    my $groupsOf = shift;

    my $rcDoIt;
    $rcDoIt = sub
       {
           $rcToRun->(
              map shift, 1 .. ( @_ < $groupsOf ? @_ : $groupsOf )
              ),
           @_ ? &$rcDoIt : ();
       };

    &$rcDoIt;
}

[download]

I hope this is of interest.

Update: Oops, forgot to post the output :-(

a b c d e,
f g h i j,
k l m n o,
p q r s t,
u v w x y,
z,
a b c d e f g,
h i j k l m n,
o p q r s t u,
v w x y z,

[download]

Cheers,

JohnGG

In reply to Re: How to return a list using recursion? by johngg
in thread How to return a list using recursion? by dr.jekyllandme

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.