Assuming code-tampering is not an issue, how about this:
my $foo; # Global, because this is the only visible (subroutine ref)
print qq[First call - do first processing here \n];
# First processing code goes here ...
# Now setup for subsequent calls ....
print qq[subsequent calls\n]
# Code for subsequent calls goes here
$foo->() for 0..5; # OK - so the subroutine call looks slightly weird
Unfortunately, Murphy's laws will kick in if the caller decides to use a copy/clone of the $foo scalar, so don't do that.
"Choose a job you like and you will never have to work a day of your life" - Confucius
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
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:
Outside of code tags, you may need to use entities for some characters:
- 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
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||