Luke Palmer dialog with myself:
On Jan 15, 2008 12:29 AM, [EMAIL PROTECTED] wrote:
When math says that something is undefined, in my little brain I
understand that there is no answer.
I'm not sure if I'm agreeing or disagreeing with you here. Depends on
exactly what you mean by no
On Jan 14, 2008 8:27 PM, apfelmus [EMAIL PROTECTED] wrote:
The type of contPromptM is even more general than that:
casePromptOf' :: (r - f b)
- (forall a,b. p a - (a - f b) - f b)
- Prompt p r - f b
casePromptOf' done cont (PromptDone r) = done r
Speaking of computer science books using Haskell, does
anybody know when will a Haskell version of The Little
Schemer, or anything equivalent, be published?
It seems strange that The Little MLer is out, but not
The Little Haskeller.
Benjamin L. Russell
--- PR Stanley [EMAIL PROTECTED] wrote:
Alternatively, again speaking of computer science
books using Haskell, does anybody know when will a
Haskell version of Structure and Interpretation of
Computer Programs, or anything of the same scope, be
published?
It seems strange that Concepts, Techniques, and Models
of Computer Programming is
Alternatively, again speaking of computer science
books using Haskell, does anybody know when will a
Haskell version of Structure and Interpretation of
Computer Programs, or anything of the same scope, be
published?
It seems strange that Concepts, Techniques, and Models
of Computer Programming is
Luke Palmer wrote:
In attempting to devise a variant of cycle which did not keep its
argument alive (for the purpose of cycle [1::Int..]), I came across
this peculiar behavior:
import Debug.Trace
cycle' :: (a - [b]) - [b]
cycle' xs = xs undefined ++ cycle' xs
take 20 $ cycle' (const $
[EMAIL PROTECTED] wrote:
Your example with the King on the chessboard goes along the doctrine
professed by Achim S., forbidding something. But this word,
legality, etc. is a juridic term, something not so meaningful in
math. OK, you are forbidden to try 0/0. But you DO. So what?
You claim
Hi,
Listed below is my first experiment with reactive programming. It is a
simple web server written using the Data.Reactive[1] library. The
intended interface is given by the runHttpServer function, so the
remainder is intended to be internal.
I'd be happy to hear comments on any parts of
On Tue, Jan 15, 2008 at 07:40:03AM +0100, Henning Thielemann wrote:
On Mon, 14 Jan 2008, John Meacham wrote:
On Sun, Jan 13, 2008 at 01:08:49AM +0100, Henning Thielemann wrote:
Is there a fast and reliable way to compute the fraction of a floating
point number?
no, and this has
Hello Torsten,
Tuesday, January 15, 2008, 1:09:54 AM, you wrote:
Seeing my woes with FranTk - what else is out there that people use if
a (simple) GUI is desired for a Haskell app? Just a few textboxes and
a button or two would do me.
i've read Gtk2Hs tutorial[1] and developed first version
Hi Torsten,
Here is something I use in GTK2HS when teaching beginners:
http://hpaste.org/5017
Hope this helps,
Yitz
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Maybe it's better to ask ghc to include location information into the
iface files? Then you can get the right file depending on your imports..
Marc
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btw, if you use GTK2HS on the Mac, don't forget to
start up X Windows support, and run export DISPLAY=:0.0
in your terminal window, before you run your program.
X Windows is usually in Applications/Utilities, but only
if you installed it manually from the Mac OS X discs,
it is not installed by
Hi Torsten,
If you really only want a simple GUI - I seem to recall you're on a
Mac - you might even be able to get away with the AppleScript bindings:
http://hackage.haskell.org/cgi-bin/hackage-scripts/package/AppleScript-0.1.3
There are an example of a simple textfield GUI in the examples
The advice below is for Mac OS X 10.4 and below. Starting with Mac OS X 10.5
(Leopard) the DISPLAY is set for you by the operating system. Mine is currently
/tmp/launch-sQZXQV/:0 which looks very strange because it is used to cause the
launchd daemon to start the X server on demand (i.e.
with the release update haskelldb-0.9 - haskelldb-0.10 several things have
changed. Unfortunately the API documentation does not give enough
information in generall. Is there any additional uptodate documentation
around?
In particular the fundamental function connect hast a new signature:
If you can get wxHaskell installed working, you could try Phooey and/or
TV. Both are described on the Haskell wiki and available via darcs and
Hackage.
On Jan 14, 2008 2:09 PM, Torsten Otto [EMAIL PROTECTED] wrote:
Seeing my woes with FranTk - what else is out there that people use if
a
2008/1/15 Immanuel Normann [EMAIL PROTECTED]:
I don't know what pairs of strings this function needs. The API
description is to unspecific:
The connect function takes some driver specific name, value pairs use to
setup the database connection, and a database action to run.
What are the
On Jan 10, 2008 10:45 AM, Don Stewart [EMAIL PROTECTED] wrote:
That's pretty much what we envisaged as the approach to take.
Monad transformers adding some bit-buffer state over Get/Put.
For anyone who's still reading this thread...
I've just uploaded[1] binary-strict 0.2.1 which includes
agl:
On Jan 10, 2008 10:45 AM, Don Stewart [EMAIL PROTECTED] wrote:
That's pretty much what we envisaged as the approach to take.
Monad transformers adding some bit-buffer state over Get/Put.
For anyone who's still reading this thread...
I've just uploaded[1] binary-strict 0.2.1 which
On Jan 15, 2008 3:26 PM, Don Stewart [EMAIL PROTECTED] wrote:
Ok. That's awesome. I guess if you do all the TODOs for Binary like
this, we should merge the code back in :)
Well, at the moment I'm pretty unhappy with the amount of code
duplication required both within binary-strict and between
Hi
(maybe a bit of TH for generating the common bits)
That would be bad. Then you'll have gone from Data.Binary being
portable code, to being GHC specific code, and I will cry :'-(
CPP is a good way to common stuff up in a portable way - I've used it
in FilePath. There is nearly no end to
Ups, resend, first response did not make into the list.
On Jan 14, 2008, at 9:33 PM, Brandon S. Allbery KF8NH wrote:
On Jan 15, 2008, at 0:28 , Adam Smyczek wrote:
It's probably a trivial question, but I cannot figure out
how to implement the catchError function in:
instance MonadError
Yes, this is a doctrinal problem. Since *any* concrete reaction, e.g., an
error message is a kind of answer, the only - unusable as it is - way of
not providing it is to fail the termination...
You can just disallow the call, using the type system.
Not that it's always easy or practical
On Jan 15, 2008 5:01 PM, Neil Mitchell [EMAIL PROTECTED] wrote:
That would be bad. Then you'll have gone from Data.Binary being
portable code, to being GHC specific code, and I will cry :'-(
Ok, no TH ;)
AGL
--
Adam Langley [EMAIL PROTECTED]
On Jan 15, 2008, at 22:05 , Adam Smyczek wrote:
Ups, resend, first response did not make into the list.
On Jan 14, 2008, at 9:33 PM, Brandon S. Allbery KF8NH wrote:
On Jan 15, 2008, at 0:28 , Adam Smyczek wrote:
It's probably a trivial question, but I cannot figure out
how to implement
On Jan 15, 2008, at 7:34 PM, Brandon S. Allbery KF8NH wrote:
On Jan 15, 2008, at 22:05 , Adam Smyczek wrote:
Ups, resend, first response did not make into the list.
On Jan 14, 2008, at 9:33 PM, Brandon S. Allbery KF8NH wrote:
On Jan 15, 2008, at 0:28 , Adam Smyczek wrote:
It's probably
On 15 Jan 2008, at 7:54 PM, Adam Smyczek wrote:
On Jan 15, 2008, at 7:34 PM, Brandon S. Allbery KF8NH wrote:
On Jan 15, 2008, at 22:05 , Adam Smyczek wrote:
Ups, resend, first response did not make into the list.
On Jan 14, 2008, at 9:33 PM, Brandon S. Allbery KF8NH wrote:
On Jan 15,
GLFW is a Haskell module for GLFW OpenGL framework. It provides an
alternative to GLUT for OpenGL based Haskell programs.
The current 0.3 version is for download from hackageDB at:
http://hackage.haskell.org/cgi-bin/hackage-scripts/package/GLFW-0.3
Same as the previous 0.2 version it requires
On Jan 15, 2008, at 8:07 PM, Jonathan Cast wrote:
On 15 Jan 2008, at 7:54 PM, Adam Smyczek wrote:
On Jan 15, 2008, at 7:34 PM, Brandon S. Allbery KF8NH wrote:
On Jan 15, 2008, at 22:05 , Adam Smyczek wrote:
Ups, resend, first response did not make into the list.
On Jan 14, 2008, at
While reading the paper A History of Haskell: Being
Lazy With Class (Paul Hudak, John Hughes, Simon
Peyton Jones, Philip Wadler: The Third ACM SIGPLAN
History of Programming Languages Conference (HOPL-III)
San Diego, California, June 9-10, 2007)
Your Yi editor tutorial looks like a fascinating idea,
but I use Mac OS X (10.2.8 Jaguar, soon to be upgraded
to 10.5.x Leopard) at home, and Windows XP at work,
while your tutorial is based on Ubuntu and the bash
shell.
A few questions:
1) Do you have any versions of your Yi tutorial for
Mac OS
Hi haskellers!
I am a postgraduate student interested in functional programming and
Haskell. I would appreciate if someone could elaborate on which are
the current hot topics of research in this area, and related to Haskell,
of course. In particular, I am interested in compiler implementation.
4 years after its original release, and with almost daily use, I'm
pleased to announce a new release of hmp3, the Haskell mp3 player.
The goal of this project was a more stable, resize-friendly mp3 player
for the console, that didn't compromise on efficiency or the user
interface.
This release,
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