This is a quasi-rant, quasi-question, quasi-me-being-bored-at-work node. So, you've been warned. *grins*

I was just working on a script that uses Getopt::Long and has something like 4 mandatory parameters and some 6 optional ones. Well, if I don't have any of the mandatory ones, I need to print the correct usage, then fail. Easy enough, right? Just do something like:

&printUsage && exit unless exists @{$args}{@mandatory_args};
NOPE! ... exists doesn't work on a list, no matter how you slice it. Instead, you have to do something like:
&printUsage && exit if grep !$_, map { exists $args->{$_} } qw(user to_db to_sid to_site);
That just looks ugly. Anyone else run into this?

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Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.


In reply to built-ins sometimes iterating over a list, sometimes not by dragonchild

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