By the standard we use where I work, it would look like this: 
sub convert {
    my ($args) = @_;
    AssertRequiredFields($args, [qw( from to thing )]);
    AssertValidFields(   $args, [qw( from to thing )]);

    ...
}

[download]
where AssertRequiredFields and AssertValidFields are fairly obvious core utility functions (which confess if the assertion is invalid), and $args is a hashref.

Yes, I know that it looks a little outdated... However, even though the codebase is under active development, some of it is still very old. Since nobody really feels like going back and retrofitting a million lines of code, we continue with the old (but still pretty good) standard. 

------------
:Wq
Not an editor command: Wq

[download]

In reply to Re: Your named arguments by etcshadow
in thread Your named arguments by Juerd

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