Certainly GLOB is a useful value. The purpose of the example was to show that REF is less useful than it would seem because it is not exhaustive. Other things -- GLOBs -- can also hold references, so when writing code that decides whether to recurse further you need to either match against multiple values or call ref again anyway.

In reply to Re^6: ref eq "REF" by gaal
in thread ref == "REF" by gaal

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