Christophe Poucet wrote:
> I have to concur with Duncan.
>
> I started using Gtk2Hs for a small project and literally within a couple
> hours I had a good understanding upon which to build a nice gui as well as
> the gui itself. I haven't tried out wxhaskell, but trying gtk2hs and it's
> cairo bi
On Mon, Mar 13, 2006 at 06:48:51PM -0800, Shannon -jj Behrens wrote:
> > consolidateOutput = output >>> reverse >>> concat
> >
> > and so on.
>
> Are you saying that >>> can be used as a reversed version of $?
For the (->) instance of Arrow, (>>>) is simply reversed function
composition, (>>>) =
On 3/12/06, Lennart Augustsson <[EMAIL PROTECTED]> wrote:
> Shannon -jj Behrens wrote:
> > lexString ('*':cs) = (classifyString "*", cs)
> > lexString (c:cs) = (classifyString [c], cs)
>
> The first line isn't needed, it does the same as the second line.
Good eye! You are correct.
Thanks,
-jj
__
On 3/12/06, Einar Karttunen wrote:
> On 12.03 01:47, Shannon -jj Behrens wrote:
> > monad. Perhaps controversially, I've continued to use |> in a bunch
> > of places that the monad didn't get rid of because I think it's more
> > readable, but I'm still open for argument on this topic. Using the
> How's this?
What about ++, in Haskell thats just an ordinary function, yet you are
using the library one in this case.
The other thing is that the first definition of my_concat_map is
entirely redundant, the second one handles both cases anyway.
Also, for completeness, you might be interested
On 3/13/06, Jared Updike <[EMAIL PROTECTED]> wrote:
>
> If you want a place to start, I would challenge you to expand the
> concatMap definition above with the definitions of concat and map, and
> then plug in the definition of foldr and see if you can make your own
> concatMap function. Maybe that
(Moved to haskell-cafe)
> Actually, I'm trying to avoid library functions, so I can learn the
> language and the functional way of thinking. How would one implement
> the concatMap function?
The Haskell 98 report gives possible implementations of standard functions:
http://haskell.org/onliner
Martin Percossi wrote:
matrix.hs:138:27:
Couldn't match the rigid variable `.' against `ST'
`.' is bound by the type signature for `runSTMatrix'
Expected type: ST s
Inferred type: . (forall s1)
Something seems wrong here. Above '.' was parsed as an infix type
variable. As
I have to concur with Duncan.I started using Gtk2Hs for a small project and literally within a couple hours I had a good understanding upon which to build a nice gui as well as the gui itself. I haven't tried out wxhaskell, but trying gtk2hs and it's cairo bindings, I fell in love with the simplic
On Sat, 11 Mar 2006, Roberto Zunino wrote:
This avoids duplicating code between Show/ShowColl .
instance ShowColl coll => Show (CollTree coll) where
show (CollNode n) = "CollNode " ++ showColl n
class ShowColl coll where
showColl :: coll (CollTree coll) -> String
instance ShowColl []
On Mon, 2006-03-13 at 09:58 +0100, Daniel Fischer wrote:
> Hello All,
>
> how would I get myself a working (and easy to use) GUI-library?
There are two main GUI libraries at the moment: Gtk2Hs and wxHaskell.
http://haskell.org/gtk2hs/
http://wxhaskell.sourceforge.net/
Both will work with curren
Hello All,
how would I get myself a working (and easy to use) GUI-library?
Fudgets looks good, but I couldn't get it to build.
I downloaded the snapshot from 2005, how to compile says
make ghc-all; make ghc-install,
but it doesn't work.
First, in several scripts/makefiles, the ghc version 4.06 wa
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