[REBOL] Re: Testing if a string is an integer?

[Garold L. Johnson]

-----Original Message-----
From: Carl Read
 >  digit: charset "1234567890"
>  parse string [some digit]

Ah - very nice.  Must look into 'parse properly.  Hmmm, why doesn't...

    ? some

give us some info on 'some?

The only answer I have is that 'some is recognized only by the parse dialect
and not by REBOL: directly, and 'parse is a native! word.
        A legal REBOL integer is a bit more complicated (FWIW):
        Sign: charset "+-"
        Digits: charset "0123456789"
        Tick: #"'"
        Int_Rule: opt sign digit [ any [ digit | Tick ] ]
        This is probably more than anyone wanted to know, but I've looked at a lot
of this lately for the Oscar tokenizer.
        Thanks,
        Garold (Gary) L. Johnson

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