I was thinking of "overloading" a function to tell if an argument was a RE vs. a string by having the user use qr// to pass the RE. So what is the result I see? The perlfunc page on ref doesn't mention that at all on the list of built-in types. So trying 
perl -e "print qr/a/"

[download]
gives a result of Regexp, which is not terribly surprising, but then I wonder why isn't it all caps, "REGEXP", like the other built-in types?

Is the precompiled RE implemented using a class, something that the qr// operator knows about? Does this mean that Regexp (not all-capped) is reserved as a package name? Are there any interesting members in there now...?

—John

In reply to Internal representation of qr// compiled regular expressions by John M. Dlugosz

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