I could have sworn that there were various "is..." verbs or phrases 
that identified digits, alpha chars, punctuation, etc., in literals, 
but I can't seem to locate them at all.  (I still use J602; waiting for 
the J701 bleeding edge blood to stop.)

Basically, what I'm immediately looking for is a verb or phrase (I'll 
call it "isdigit") that gives a boolean 1 for each char in a literal 
that's a digit and 0 otherwise:

   isdigit 'DSC0001.JPG'  --->   00011110000

    D S C 0 0 0 1 . J P G
    0 0 0 1 1 1 1 0 0 0 0

I tried comparisons with values in  a.  but, for whatever reason, that 
didn't work because it seemed to compare the whole literal at once 
rather than a char-by-char comparison.

Thanks in advance for your assistance with this!


Harvey

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