If the data are left justified within their fields, then the 'An' template you are using will trim trailing spaces. Unfortunately there is no equivalent for trimming right justified fields.

You could achieve the re-ordering of the fields using the '@n' absolute positioning template. And you can generate the empty fields using 'A0'.

The fly in the ointment as far as producing your output is concerned, it that you have a variable in your output $catdesc, that does not appear to come from your input?

Otherwise you could achieve the one-liner something along the lines of: 

print CSTORE_OUT join ',', unpack 
    '(A0)2 @9A30 (A0)4 @0A7 @119A13 @9A30 @90A8 ...', $_;

[download]

***NOTE*** That won't work as it's a) incomplete; b) I've re-used the $desc field inplace of the absent $catdesc variable.

It's just an example of what might have been possible had all the output fields come from the input. Whether there is any advantage in doing this as a one-liner is another question.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
"Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."

In reply to Re: Trimming unpack'ed strings by BrowserUk
in thread Trimming unpack'ed strings by Anonymous Monk

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.