Hello Perl Pros,

Here i am once again with a desperate attempt to sort my way through weird system configs with Perl.

At this point i have a hash where the values are a list of references to arrays. It's not really interesting what's inside, but maybe that structure is not the best one for my problem, or maybe you're just curious, so : the keys are unique adresses and each list is a bunch of devices mapped to it. I need to make sure that every device is in every list, that is that all these list are equals.

It should be easy, but i find myself doing this in an ugly way.

Here's what my hash looks like : 

$VAR1 = {
          'Ad1' => [
                                  '0A78',
                                  '0A9E',
                                  '0AB9',
                                  '0AC0',
                                  
                                ],
          'Ad2' => [
                                  '0A78',
                                  '0A9E',
                                  '0AB9',
                                  '0AC0',
                                                                      
+          ]
        };

[download]
It could be that there is only one key, or more than 2. Also, in the end, i'm looping through a structure to build this hash, but let's forget that.

Here's what i do : 

#!perl
use strict ; 
use warnings ; 
my $refcomp= {
          'Ad1' => [
                                  '0A78',
                                  '0A9E',
                                  '0AB9',
                                  '0AC0',
                                  
                                ],
          'Ad2' => [
                                  '0A78',
                                  '0A9E',
                                  '0AB9',
                                  '0AC0',
                                                                      
+          ]
        };

my %comp =%$refcomp ;  # my code uses a hash, not a ref, so ...

my %found ; 
if (scalar keys %comp > 1 ) {
    for my $adress (keys %comp) {
        for my $dev ( @{$comp{$adress}} ) { $found{$dev}++ } 
    }    
}
    
my %uniq ; 
for my $it (values %found) { $uniq{$it}++ } ; 

if ( scalar keys %uniq > 1 ) { 
    print "ERR : Problem in device list\n"  ; 
}

[download]

Anyone has a nicer way ? Thanks !

zlr

In reply to Looping through arrays : are they equal ? by ZlR

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.