Here's how you go about printing hashes of arrays. This should be general enough that you can adapt it to your situation once you work through the syntax and other errors in your code that are dumped to your screen when you type perl -c scriptname.

Let's say you have a Hash of Arrays like this:

my %HOA = ( this => [ 'A', 'B', 'C' ], that => [ 'D', 'E', 'F' ], other => [ 'G', 'H', 'I' ], );

You could print a given element like this:

print $hoa{this}[2], "\n"; # prints 'C'.

...or you could print each row like this:

foreach my $key ( keys %HOA ) { print "$key:\t"; print "$_\t" for @{$HOA{$key}}; print "\n"; } # Prints the following (don't rely on the order of hash keys). # this: A B C # that: D E F # other: G H I

Helpful documentation: perlreftut, perlref, perllol, perldsc.


Dave


In reply to Re^5: Optional Arguments..? by davido
in thread Optional Arguments..? by Watergun

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.