>Thanks to all for your clever responses. I like Barbara's solution for simplicity, and it should work for the simple cases I'll be looking at.
Well, my solution:
?empty(chrtran(lcTest4,"0123456789.-",replicate(" ",12))) and type(lcTest4)="N"
would work for all cases, not only for simple.
If it's not broken, fix it until it is.
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