Re: printf

My printf was a sprintf too. I.e., the return value could be eoither `IO a' or String. Easy to implement, but probably confusing. :) -- Lennart John Goerzen wrote:

On 2004-11-24, Simon Marlow wrote:

...

On 23 November 2004 20:34, Lennart Augustsson wrote: I'd like to pull this in, or something like it. IMHO, the lack of static type safety is outweighed by the shear convenience, and it's too small to provide as a separate library.

It'd be nice to have

hPrintf :: (PrintfType a) -> Handle -> String -> a

Don't forget sprintf, though I haven't yet studied this code enough to figure out how to do it with this model.

sprintf could and should be a pure function that can be executed outside the IO monad. Quite useful for, say, internals of a string generation routine.

-- John

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