[racket-dev] `string-split'

>
> 4. Related to Q3: what does "xy" as that argument mean exactly?
>>   a. #rx"[xy]"
>>   b. #rx"[xy]+"
>>   c. #rx"xy"
>>   d. #rx"(?:xy)+"
>>
>
> Good question. d. would be the simplest case for newbies, but b. might be
> more useful.
>

It would make more sense that a string really is a string, not a set of
characters.
Without going as far as srfi-14, a set could be a list of strings or
characters, but maybe this is not needed.

Laurent
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