[Jprogramming] Digit identifier verb or phrase?

[Ric Sherlock]

for what you want to do the following is probably sufficient:
   isdigit=: e.&'0123456789'
   isdigit 'DSC0001.JPG'
0 0 0 1 1 1 1 0 0 0 0


On Fri, Nov 25, 2011 at 1:13 PM, Ric Sherlock <tikkanz at gmail.com> wrote:
> open 'validate'
> load 'validate'
>
> On Fri, Nov 25, 2011 at 10:12 AM, PackRat <packrat at anet.com> wrote:
>> 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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>