On a stylistic note, the layout that you've used: 

sub main
{
  .. some code ..
  .. more code ..
}
main();

[download]
drives me absolutely bananas.

The routine main is not, and never will be, a sub-routine. main is main. The main-line program. That's what gets run.

How about instead structuring it as 

{
  .. some code ..
  .. more code ..
}

[download]
By definition, that's implicitly main. You could even pretend it's a shell script (from whence Perl came), and do this: 
.. some code ..
.. more code ..

[download]

My personal preference is to have braces, if only to remind me that this is a procedure (even if it is really close to a shell script).

Alex / talexb / Toronto

Thanks PJ. We owe you so much. Groklaw -- RIP -- 2003 to 2013.

In reply to Re: Histogram Creation by talexb
in thread Histogram Creation by Galahad

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