> > 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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