Hi,
In a local copy of Parsec.Prim I've added a primitive, that may be of
help for your problem as well.
consumeNothing :: GenParser tok st ()
consumeNothing = Parser (\state -> Consumed (Ok () state (unknownError
state)))
With this I've implemented:
checkWith :: (Show a) => GenParser tok st
On Wed, Feb 18, 2004 at 02:45:15PM +0100, Daan Leijen wrote:
> On Wed, 18 Feb 2004 01:11:31 -0500, Andrew Pimlott <[EMAIL PROTECTED]>
> wrote:
> >After some pondering and fiddling, a version I like:
> >
> >notFollowedBy' :: Show a => GenParser tok st a -> GenParser tok st ()
> >notFollowed
On Wed, Feb 18, 2004 at 02:45:15PM +0100, Daan Leijen wrote:
> On Wed, 18 Feb 2004 01:11:31 -0500, Andrew Pimlott <[EMAIL PROTECTED]>
> wrote:
> >After some pondering and fiddling, a version I like:
> >
> >notFollowedBy' :: Show a => GenParser tok st a -> GenParser tok st ()
> >notFollowed
On Wed, 18 Feb 2004 01:11:31 -0500, Andrew Pimlott <[EMAIL PROTECTED]> wrote:
After some pondering and fiddling, a version I like:
notFollowedBy' :: Show a => GenParser tok st a -> GenParser tok st ()
notFollowedBy' p= join $ do a <- try p; return (unexpected (show a))
On Tue, 17 Feb 2004 14:40:18 -0800, Ashley Yakeley <[EMAIL PROTECTED]> wrote:
Ben Rudiak-Gould <[EMAIL PROTECTED]> wrote:
> Bear in mind you can't even write IO (forall t. whatever) in Haskell.
True, but why is this? Is there a deep reason why we can use nested
foralls as the arguments to (->),
