Greetings,
I am trying to load a hash as a code translation for a much larger file. In my efforts to simplify, actually I wanted to see if this can be done, I came up with the following code, some sample data(tab delimited) and the output
#!/usr/bin/perl -w
use strict;
use warnings;
my %CpmRC;
while (<DATA>) {
    %CpmRC = /^(\d+)\W\d+\W\d+\W(\d+)\W\w+/;
}
while (my ($key, $value) = each(%CpmRC)) {
    print "$key,$value\n";  # Print contents of the hash
}
__DATA__
030     003     1234567 4403    comments
031     003     1234567 4404    comments
032     003     1234567 4405    comments

OUTPUT:

032,4405

[download]
Out of curiosity why does this work...
    /^(\d+)\W\d+\W\d+\W(\d+)\W\w+/;
    $CpmRC{$1}=$2;

and this only catches the last two matches

    %CpmRC = /^(\d+)\W\d+\W\d+\W(\d+)\W\w+/;

[download]
I am using Perl 5.6.1 on both Solaris and NT. Any comments and/or improvements this will be appreciated.

Thanks,
Gyro

In reply to Loading a Hash directly from a Regex by Gyro

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.