Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

G'day xyzzy,

I think this might be the type of thing you're after.

#!/usr/bin/env perl -l use strict; use warnings; my @matrix = ( [qw{A B C}], [qw{D E F}], [qw{G H I}], [qw{J K L}, [ [qw{M N O P Q}, [qw{R S T}], qw{U V W X Y Z}] ] ], ); my %dict = ( a => [0, 0], b => [0, 1], e => [1, 1], g => [2, 0], i => [2, 2], p => [3, 3, 0, 3], s => [3, 3, 0, 5, 1], ); for (qw{a b e g i p s}) { print "$_ => ", get_element(\@matrix, $dict{$_}); } sub get_element { my ($matrix, $coords) = @_; my $element = $matrix->[shift @$coords]; @$coords ? get_element($element, $coords) : $element; }


a => A b => B e => E g => G i => I p => P s => S

I'll leave you to implement whatever OO framework you need.

-- Ken

In reply to Re: Accessing a matrix value from a dictionary of named coordinate tuples by kcott
in thread Accessing a matrix value from a dictionary of named coordinate tuples by xyzzy

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, 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, 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.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others meditating upon the Monastery: (6)
    As of 2021-05-08 15:39 GMT
    Find Nodes?
      Voting Booth?
      Perl 7 will be out ...

      Results (96 votes). Check out past polls.