CurryInfo: base-3.4.0 / System.Console.GetOpt.usageInfo
definition: 
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usageInfo :: String -- header
-> [OptDescr a] -- option descriptors
-> String -- nicely formatted decription of options
usageInfo header optDescr = unlines (header:table) where
(ss,ls,ds) = (unzip3 . concatMap fmtOpt) optDescr
table = zipWith3 paste (sameLen ss) (sameLen ls) ds
paste x y z = " " ++ x ++ " " ++ y ++ " " ++ z
sameLen xs = flushLeft ((maximum . map length) xs) xs
flushLeft n xs = [ take n (x ++ repeat ' ') | x <- xs ]
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demand:
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no demanded arguments |
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deterministic:
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deterministic operation |
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failfree:
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(_, _) |
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indeterministic:
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referentially transparent operation |
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infix:
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no fixity defined |
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iotype:
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{(_,_) |-> _}
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name:
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usageInfo |
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precedence:
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no precedence defined |
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result-values:
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_ |
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signature:
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String -> [OptDescr a] -> String |
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solution-complete:
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operation might suspend on free variables |
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terminating:
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possibly non-terminating |
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totally-defined:
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possibly non-reducible on same data term |