[Omaha.pm] uppercasing some things in complex nested structures

[Dan Linder]

On Fri, Jan 30, 2009 at 1:40 PM, Travis McArthur <travis at travisbsd.org>wrote:

>   if (ref($qualifiers) eq "HASH")
> ...
>   elsif (ref($qualifiers) eq "ARRAY")
>

I just started working on some recursive code and was forced to use the
"UNIVERSAL::isa" subroutine to check if an object is a hash or array.

This looks cleaner, but is it available in the older Perl 5.8.0?  This looks
a lot like the Perl 5.10 code I saw demo'ed and thought "Wow, very nice!"...

Dan

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