Mercurial > urweb
view lib/ur/listPair.ur @ 844:74a1e3bdf430
Fix datatype import bug in Elaborate; fix server-side source setting; more standard library stuff
author | Adam Chlipala <adamc@hcoop.net> |
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date | Sun, 07 Jun 2009 16:45:00 -0400 |
parents | 78504d97410b |
children | 0d30e6338c65 |
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fun mapX [a] [b] [ctx ::: {Unit}] f = let fun mapX' ls1 ls2 = case (ls1, ls2) of ([], []) => <xml/> | (x1 :: ls1, x2 :: ls2) => <xml>{f x1 x2}{mapX' ls1 ls2}</xml> | _ => error <xml>ListPair.mapX: Unequal list lengths</xml> in mapX' end fun all [a] [b] f = let fun all' ls1 ls2 = case (ls1, ls2) of ([], []) => True | (x1 :: ls1, x2 :: ls2) => f x1 x2 && all' ls1 ls2 | _ => False in all' end