On 14 Dec 2007, at 1:21 AM, Jules Bean wrote:
Evan Laforge wrote:
it seems that script may be not terminated if its output isn't read, so better code should be
(_, h, g, _) <- runInteractiveCommand "script params" result <- hGetLine h hGetContents h >>= evaluate.length hGetContents g >>= evaluate.length Tangent here, but does anyone else think that something like hGetContentsEagerly would be handy in System.IO?
YES!
Jules
PS we could give it a nice sensible name like hGetContents. We could renaming the existing hGetContents to hUnsafeGetContentsDontUseThisUnlessYouHaveSpentThreeMonthsLearningGHCs ExecutionSemanticsOrYouWillRegretIt
On the contrary, it's great for writing filters. OTOH, using the result of hGetContents interleaved with other IO actions feels like a reversion to the bad old days of dialogs (which it is, of course). jcc