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One of the things I use to get around things like this is to use anonymous hashes to call subroutines. For example:
my ($value,$error) = my_sub(input => 'who', inny => 'what'); unless ($value) { my_abort ("There was an error: ",$error); }
and then, in my_sub
sub my_sub { my %args = { input => undef, inny => undef, @_ }; return(undef,"Missing inny") unless $args->{'inny'}; # do some stuff if ($problem) { return(undef,$error_msg); } return($value,undef); }
As you can see, with this you can test for each input requirement by name, dieing on the "gotta-have-its" and just warning on the "ok-I-dont-need-its".
The my_abort could even be changed to check for error severity and do a warn or die based on that.

Anyhow, just my 2 cents on handling sub calls that may return errors.

What does this little button do . .<Click>; "USER HAS SIGNED OFF FOR THE DAY"

In reply to Re: What Are The Rules For Subs And Modules When Fed Wrong Input by tame1
in thread What Are The Rules For Subs And Modules When Fed Wrong Input by Cody Pendant

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