st: detecting varabbrev

[David Kantor <kantor.d@att.net>]

Hello,
This may have been discussed previously, but...

Can anyone tell me, is there a way to detect whether varabbrev is 
set? Or generally, how to detect the value of any other setting?

I have a program that requires varabbrev to be set off. At the end, I 
set it back on. But it seems that the proper thing to do is to 
restore it to whatever it was at the start, which might not 
necessarily be -on-.
Thus I need to detect its value -- or somehow restore.

Thanks if anyone can help.
--David

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