Re: [Haskell-cafe] Is StateT what I need?

On Mon, 17 Dec 2007 16:04:24 -0500 "Brandon S. Allbery KF8NH" <allbery@ece.cmu.edu> wrote:

On Dec 17, 2007, at 15:41 , Brent Yorgey wrote:

...

Yes, and in fact, you don't even need foldM. The only thing that actually uses IO is the readFile, so ideally

Actually, a quick check indicates that the regex functions used in getProcInfo are in IO as well (?!).

That's because they're implemented in C, and anything implemented in C is potentially impure. Although, I'd have thought that they'd *actually* be pure. -- Robin