I may be way out of line here, but I think you might have an XY Problem. Let me state your problem as I understand it, and please correct me (or just ignore this post) if I'm wrong.

You have three variables (we don't care where they came from). Let's call them:

my $agency = 'XY'; # A string between 1 and 3 characters long my $date = '2007/6/3'; # Or whatever date format my $type = 'T'; # A single character

and you want to concatenate their values together into a 12-character string, padding them out if necessary (I assume with spaces in the text field, and with zeroes in the date field) so that they will be respectively 3, 8 and 1 characters long. In other words, the required output for the example data above would be:

XY 20070603T

If so - and I apologise again if I've missed something - why not simply use a combination of join and sprintf?

my $string = join '', sprintf( '%-3s', $agency ), sprintf( '%04d%02d%02d', split /\//, $date ), $type;

In reply to Re: Accessing an array of anonymous hashes by Not_a_Number
in thread Accessing an array of anonymous hashes by thezip

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.