Re: [Haskell-cafe] Converting IO [XmlTree] to [XmlTree]

On Tue, Apr 14, 2009 at 5:01 PM, Luke Palmer wrote:

... This is very important: you cannot.

I'd answer "You shouldn't, unless you know what you are doing". In some cases, not only is unsafePerformIO desirable but also necessary (I'm thinking of Debug.Trace). Cristiano