[Haskell-cafe] Iteratee, parsec & co.

John Lato jwlato at gmail.com
Tue Feb 9 11:50:52 EST 2010

> From: Edward Kmett <ekmett at gmail.com>
> 3. Why Seek FileOffset is error message?
> I'm not quite sure what you're asking here.

One of the infelicities of iteratee-0.3 is that it defines a data type:

> data ErrMsg = Err String
>               | Seek FileOffset
>               deriving (Show, Eq)

I believe this is what the OP is referring to.  Oleg originally
implemented seek using IORefs; I wanted to try this and didn't know if
it would work so I used a minimal implementation.  I've decided this
is the correct approach, but the details need to be tweaked a bit.


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