On Wed, Sep 21, 2011 at 14:31, Casey McCann <c...@uptoisomorphism.net> wrote:
> My thoughts are that the first interpretation is most naturally suited > to list range syntax, that the second would be better served by a > slightly different syntax to make the predicate more explicit, and > that the third bugs the crap out of me because it's really very useful > but I can't think of a concise and unambiguous syntax for it. > Based on what you said, I'm wondering if the first gets basic fromTo syntax, the third gets fromThenTo syntax, and the second strikes me as a simplified form of list comprehension and might possibly be phrased as a cross between range and comprehension. Although the most "correct" such cross has an ambiguity with the comma... can we still use | as the delimiter, read as "such that"? ([a .. z | filter]) -- brandon s allbery allber...@gmail.com wandering unix systems administrator (available) (412) 475-9364 vm/sms
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