Re: [Haskell-cafe] I/O Haskell question

I have to nominate "I'm lying here, but for a good cause" as a quote of the week. -Keith On Mon, Oct 5, 2009 at 10:06 AM, Deniz Dogan wrote:

2009/10/5 Maria Boghiu :

...

I get an error saying I am mismatching types IO [String] and [String].

Something of the type IO [String] is a computation which does some IO (reading files, launching nukes, etc.) and then returns a list of strings. Something of the type [String] is merely a list of strings. It is impossible (I'm lying here, but for a good cause) to "convert" something on the form "IO a" to just "a".

Try something like this:

main = do  fileContent <- readFile "/path/to/file"  xmonad $ defaultConfig {    ...    workspaces = lines fileContent,    ...  } ...

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