Re: [Haskell-cafe] ANN: attempt-0.0.0

On Sun, Oct 25, 2009 at 4:51 PM, Michael Snoyman wrote: > Comments are most welcome. I would like this to be a suitable replacement > for the ubiquitous Maybe, (Either String) and ad-hoc Result data types so > often used to report a failure. I'd be very happy to improve the package for > the gener

Re: [Haskell-cafe] Re: Time for a new logo?

On Tue, Dec 16, 2008 at 9:47 PM, Jeff Wheeler wrote: > [1]: http://media.nokrev.com/junk/haskell-logos/logo1.png > [2]: http://media.nokrev.com/junk/haskell-logos/logo2.png > > Oops, I meant to post on list. If you play with the angles and vary the stroke thicknesses you'll probably get a friend

Re: [Haskell-cafe] Time for a new logo?

My $0.02 us: Apologies for ascii art, and hopefully gmail doesn't munge this: \\ \\ \\ \\ \| \\ \\ --- \\ \\ // / \ // / \ \| // / /\\ ---

[Haskell-cafe] The Gtk Clutter API

http://www.clutter-project.org/ What is the degree-of-difficulty for creating Haskell bindings for Clutter? Is it simple to extend gtk2hs to cover it? Or has it been done and I just don't see it? Thanks. -- Darrin ___ Haskell-Cafe mailing list Haskell

Re: [Haskell-cafe] Re: Hmm, what license to use?

On Wed, Oct 1, 2008 at 4:00 PM, Don Stewart <[EMAIL PROTECTED]> wrote: > And keep dividing our compiler teams' efforts, while > single-implementation languages conquer :) > > Seems like Haskell has a pretty clear story about which is the right implementation for general purpose use. I don't see a

[Haskell-cafe] New Category Theory Intros

These category theory intros were new to me. Thought others here might care. http://golem.ph.utexas.edu/category/2008/08/new_structures_for_physics_i.html -- Darrin ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/li

Re: [Haskell-cafe] Re: [Haskell] Another First course in Haskell

On Sat, Aug 23, 2008 at 8:41 AM, Johannes Waldmann < [EMAIL PROTECTED]> wrote: > (*) that's the main problem I see with Hutton's book > http://www.cs.nott.ac.uk/~gmh/book.html: > it has "Declaring types and classes" as chapter 10 (of 13 total). > I think

Re: [Haskell-cafe] ANN: Hayoo! beta 0.2

On Wed, Jul 23, 2008 at 5:04 AM, Timo B. Hübel <[EMAIL PROTECTED]> wrote: > Unfortunately we had to drop the direct links to the source code, as the > documentation on Hackage is currently generated without source code. But as > soon as this changes, we will include these links again. > Someone is

Re: [Haskell-cafe] BLAS Solve Example

On Wed, Jul 23, 2008 at 2:12 AM, Alberto Ruiz <[EMAIL PROTECTED]> wrote: > $ ghci solve.hs > *Main> sol > 3 |> [-5.511e-2,0.3,0.2776] > I was hoping for rational solutions. If I were a true jedi master I'd write my own solver, which might be the right thing

[Haskell-cafe] BLAS Solve Example

I'm stuck on something that I thought would be easy. I have a matrix and a vector. > module Main where > import Data.Vector.Dense > import Data.Matrix.Dense > import BLAS.Matrix.Solve > > m = listMatrix (2, 3) ([1, 2, 3, 4, 5, 6]::[Double]) > v = listVector 2 ([1, 2]::[Double]) > > main = do ???

[Haskell-cafe] Haskell Related Reading

I have a trip coming up and might have some reading time. I was hoping to get through some of the classics, bananas and lenses, the essence, etc. So I have a few questions: Bananas and lenses et. al. uses some notation that I don't understand right out of the gate. Is there a good primer on whate

Re: [Haskell-cafe] Literal programming in Haskell with rst-literals

2008/6/23 Abhay Parvate <[EMAIL PROTECTED]>: > Hello, > > You might already know this, but in case you don't: there is another > literate style: > I had trouble finding the docs on this, as I expected them to be in the ghc user guide. For the record, the relevant docs are in the h98 report: http:

[Haskell-cafe] cabal-install failure

Cabal-install is looking good. It now, for the record, has only two deps outside of Cabal-1.4. I installed cabal-install-0.5 on ubuntu with the haskell.org linux binary for ghc 6.8.2. I then tried cabal-install yi Got this output: ... many successful installs ... Registering vty-3.0.1... Reading

Re: [Haskell-cafe] Announce: Fortress talk in New York City

2008/6/13 Jeff Polakow <[EMAIL PROTECTED]>: > There will be a talk on Fortress ( a new OO/Functional language from Sun) on > Wednesday June 25 at 6:30pm in Manhattan. > Sounds interesting. Any plans to post video? -- Darrin ___ Haskell-Cafe mailing list

Re: [Haskell-cafe] Re: cabal and platform-independent haskell installation management (again) (Re: Re: Ubuntu and ghc)

On Wed, Jun 4, 2008 at 7:48 PM, Duncan Coutts <[EMAIL PROTECTED]> wrote: > > On Wed, 2008-06-04 at 17:22 +0200, Achim Schneider wrote: > >> The question, IMHO, seems to be >> >> "How would a package manager for a posix-compilant kinetic look like?" > > http://nixos.org/index.html > How well does t

Re: cabal and platform-independent haskell installation management (again) (Re: [Haskell-cafe] Re: Ubuntu and ghc)

On Wed, Jun 4, 2008 at 10:14 AM, Claus Reinke <[EMAIL PROTECTED]> wrote: > - it isn't sufficient to worry about installation management, > one has to worry about integration, lifetime and uninstall > management as well. in short, maintain the dependency > graphs over any of "install"/"upgrade

[Haskell-cafe] Rewrite class with fundeps in pure h98?

I thought that I should be able to write something like the toHtml function below with pure H98, but when I went to write it I ended up needing fundeps. Is there a way to express this without using any extensions? The idea was to take a remotely Dom-like tree and flatten it into a string, but not

Re: [Haskell-cafe] [ANNOUNCE] git-darcs-import 0.1

On Sun, Jun 1, 2008 at 2:44 PM, Bertram Felgenhauer <[EMAIL PROTECTED]> wrote: > Hi, > > I'm pleased to announce yet another tool for importing darcs repositories > to git. Unlike darcs2git [1] and darcs-to-git [2], it's written in > Haskell, on top of the darcs2 source code. The result is a much f

Re: [Haskell-cafe] Damnit, we need a CPAN.

On Thu, May 29, 2008 at 4:31 PM, Thomas Hartman <[EMAIL PROTECTED]> wrote: > I've been playing a lot with searchpath lately, for doing happs > "quickstart" installation as described on happs.org. > > Searchpath works great when it works, which usually means -- when the > module map file is up to da

Re: [Haskell-cafe] Damnit, we need a CPAN.

On Thu, May 29, 2008 at 11:47 AM, Neil Mitchell <[EMAIL PROTECTED]> wrote: >>, a cabal-inst that can install from darcs (or at least from >> a local directory) > > Yes, that would be lovely! > While we're on the subject, why does searchpath get as little attention as it does? It seems to work reas

Re: [Haskell-cafe] So how do people pronounce 'cabal' around here?

2008/5/28 Clifford Beshers <[EMAIL PROTECTED]>: > But if you say it that way, you get kicked out of the cabal. > I thought the first rule was "There is no cabal." Oh wait, that's Debian. Oh wait... aa! -- Darrin ___ Haskell-Cafe mailing list Haskell

Re: Re: [Haskell-cafe] Aren't type system extensions fun? [Further analysis]

On Tue, May 27, 2008 at 3:40 PM, Kim-Ee Yeoh <[EMAIL PROTECTED]> wrote: > Let's fill in the type variable: (x -> x) -> (Char, Bool) ==> > forall x. (x -> x) -> (Char, Bool) ==> x_t -> (x -> x) -> (Char, Bool), > where x_t is the hidden type-variable, not unlike the reader monad. > > As you've point

Re: [Haskell-cafe] Ubuntu and ghc

2008/5/21 Galchin, Vasili <[EMAIL PROTECTED]>: > Hi Dan, > > I am still looking into this myself. I just stumbled across the URL > below. i would suggest keeping an eye on this URL for more news. > I quit using the ubuntu debs. I've just been downloading the linux binaries and runing them in

Re: [Haskell-cafe] Write Haskell as fast as C. [Was: Re: GHC predictability]

On Thu, May 15, 2008 at 2:31 PM, Don Stewart <[EMAIL PROTECTED]> wrote: > I've written an extended post on how to understand and reliably optimise > code like this, looking at it all the way down to the assembly. > That is a _fabulous_ article. I'm looking forward to the HOF installment. -- Darri

Re: [Haskell-cafe] GHC predictability

On Tue, May 13, 2008 at 4:30 PM, Andrew Coppin <[EMAIL PROTECTED]> wrote: > Well, I'm the sort of contrary person who reads random papers like that > just for the fun of it. But when somebody says something like this, I don't > think "ooo, that's scary", I think "ooo, somebody really ought to sit

Re: [Haskell-cafe] GHC predictability

On Tue, May 13, 2008 at 2:20 AM, Don Stewart <[EMAIL PROTECTED]> wrote: > Note the use of strict pairs. Key to ensuring the accumulators end up in > registers.The performance difference here is due to fold (and all left > folds) not fusing in normal build/foldr fusion. > > The vector versi

Re: [Haskell-cafe] Re: Interesting critique of OCaml

2008/5/8 Donnie Jones <[EMAIL PROTECTED]>: > I would be interested to see an article on Haskell in the same light as this > Ocaml article, aka a constructive criticism of Haskell. > http://www.drmaciver.com/2008/02/tell-us-why-your-language-sucks/ -- Darrin ___

Re: [Haskell-cafe] I am new to haskell

On Thu, May 8, 2008 at 2:59 AM, Benjamin L. Russell <[EMAIL PROTECTED]> wrote: > * Kees Doets and Jan van Eijck: The Haskell Road to Logic, Maths and > Programming, As someone approaching haskell with very rusty math skills, this book has been invaluable. My haskell skills are (mostly) beyond wh