G'day IruP,

Welcome to the Monastery.

The following achieves what you ask; however, you've not been clear on what exact formats the keys, and values for the arrayrefs, take. So, the following code shows the basic technique; but, when you have a better specification, the specific elements of the code may well need to be changed. 

#!/usr/bin/env perl

use strict;
use warnings;

use Data::Dump;

my @array = ('a', 1, 2, 3, 4, 'b', 6, 7, 8);

my %hash;

my $key;

for my $element (@array) {
    if ($element =~ /^\D$/) {
        $key = $element;
    }
    else {
        push @{$hash{$key}}, $element;
    }
}

dd \%hash;

[download]

Output:

{ a => [1 .. 4], b => [6, 7, 8] }

[download]

See Data::Dump if you're unfamiliar with that module; the builtin Data::Dumper module has similar functionality.

— Ken

In reply to Re: Create a hash whose keys and values come from a given array by kcott
in thread Create a hash whose keys and values come from a given array by IruP

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.