It wouldn't do  'item' => 'bread' but it would do bread =>. This was as close as I could get: 
#!/usr/bin/perl

use strict;
use warnings;

use Data::Rmap qw(:all);

my @item = ('bread', 'butter', 'beans');

my $initial =
  [
    note =>
      [
         shopping =>
           [ 
             $item[0] =>
             $item[1] =>
             $item[2] =>
           ],
      ],
];

use Data::Dumper;
my ($dump) = rmap_array {
  
  if ($_->[0] eq 'shopping') {
    my @item;
    for my $item qw(bread butter beans) {
      push @item, [ item => $item ];
    }
    my $newdata = [ shopping => \@item ];
    cut($newdata)
  } else {
    $_;
  }

  } my @item ;

warn Dumper($initial, $dump);

[download]
Updated: fixed typo

In reply to Re: Data::Rmap to modify an arrayref of arrayrefs by Khen1950fx
in thread Data::Rmap to modify an arrayref of arrayrefs by metaperl

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.