Conal Elliott wrote:
On Nov 21, 2007 3:49 AM, Laurent Deniau [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
Peter Verswyvelen wrote:
Conal Elliott wrote:
Moreover, functional programming makes it easy to have much more
state
than imperative programming, namely state over
Hello brad,
Friday, November 23, 2007, 10:10:41 AM, you wrote:
if you need comprehensive support of http and ftp in one api/library, as
far as i know, the curl bindings are your only choice
1. Haskell binding is not mentioned at http://curl.haxx.se/libcurl/
can we do something to fix it?
2.
Hi,
How can I call a program (like, for instance,
'grep text *') and get the standard output?
(...)
http://haskell.org/ghc/docs/latest/html/libraries/process-1.0.0.0/System-Process.html
I was using the following:
(...)
do (_pIn, pOut, pErr, handle) - runInteractiveCommand command
On Fri, 2007-11-23 at 18:45 +, Paulo Silva wrote:
Hello,
Type representations using GADTs are being used to achieve dynamic
typing in Haskell. However, representing polymorphic types is
problematic. Does anyone know any work about including polymorphism
in dynamic typing?
Look at
On 23/11/2007, Paulo J. Matos [EMAIL PROTECTED] wrote:
Hi all,
I'm curious about the best way to typeset haskell code in a wordpress
blog. Using blockquote removes all indentation. :-(
There is a code highlighter for wordpress that works for Haskell code,
but it's a bit of a pain to use,
2007/11/23, Paulo J. Matos [EMAIL PROTECTED]:
Hi all,
I'm curious about the best way to typeset haskell code in a wordpress
blog. Using blockquote removes all indentation. :-(
I'm using geshi with wordpress on my blog (codeside.org) and drupal
(upcoming haskell.pl page). But you have to
Paulo J. Matos wrote:
Hi all,
I'm curious about the best way to typeset haskell code in a wordpress
blog. Using blockquote removes all indentation. :-(
Cheers,
Probably HsColour:
http://www.cs.york.ac.uk/fp/darcs/hscolour/
--8--
hscolour is a small Haskell script to colourise Haskell code.
Allan Clark wrote:
-- Create the process
do (_pIn, pOut, pErr, handle) - runInteractiveCommand command
-- Wait for the process to finish and store its exit code
exitCode - waitForProcess handle
Warning: this will get stuck if the command output is so big that it
fills the SO
Galchin Vasili wrote:
In any case, it seems like the GHC
documentation allows raw driver I/Obut when I look at the actual GHC
6.8.1 libraries I don't see low level driver functionailty.
On Unix, at least, you don't need anything special to write userspace
device drivers. You normally open
vigalchin:
Hello,
I am seriously trying to push the mainstream computer industry. I am a
kernel developer for POSIX OS's (e.g. Linux) and Windows. I would at the
very least be able to write test/correctness software in Haskell where I
am able to open Unix/Windows drivers
On 11/22/07, apfelmus [EMAIL PROTECTED] wrote:
A context passing implementation (yielding the ContT monad transformer)
will remedy this.
Wait, are you saying that if you apply ContT to any monad that has the left
recursion on = takes quadratic time problem, and represent all primitive
On Fri, 2007-11-23 at 21:11 -0800, Ryan Ingram wrote:
On 11/22/07, apfelmus [EMAIL PROTECTED] wrote:
A context passing implementation (yielding the ContT monad
transformer)
will remedy this.
Wait, are you saying that if you apply ContT to any monad that has the
Hello,
I am seriously trying to push the mainstream computer industry. I am a
kernel developer for POSIX OS's (e.g. Linux) and Windows. I would at the
very least be able to write test/correctness software in Haskell where I
am able to open Unix/Windows drivers and test storage firmware. The
On Nov 23, 2007 6:24 PM, Jules Bean [EMAIL PROTECTED] wrote:
...i.e. I wouldn't be afraid of a lambda in a case like that. IME it's
moderately common to have to do:
mapM_ (\a - some stuff something_with a some stuff) ll
This has terrible endweight. In this imperativesque case, I'd write:
Paulo Silva wrote:
Type representations using GADTs are being used to achieve dynamic
typing in Haskell. However, representing polymorphic types is
problematic. Does anyone know any work about including polymorphism in
dynamic typing?
First, a warning: fragile code follows, possibly
On Nov 23, 2007 1:43 PM, Galchin Vasili [EMAIL PROTECTED] wrote:
I am loading the above script in ghci. However, System.Posix, System.Process
and STM cannot be found. Network and Directory are found. I assume when ghc
is installed on Windows that the Windows registry get populated with paths
On Fri, 2007-11-23 at 23:01 +0100, Roberto Zunino wrote:
Maurício wrote:
main = mapM_ ((putStrLn ) * putStrLn) $
map show [1,2,3]
Using only standard combinators:
main = mapM_ ((putStrLn ) . putStrLn) $ map show [1,2,3]
== mapM_ ((putStrLn ) . putStrLn . show) [1,2,3]
Maurício wrote:
main = mapM_ ((putStrLn ) * putStrLn) $
map show [1,2,3]
Using only standard combinators:
main = mapM_ ((putStrLn ) . putStrLn) $
map show [1,2,3]
Zun.
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Hello,
import System.Posix
--import Network
import System.Process
--import Directory
import STM
I am loading the above script in ghci. However, System.Posix,
System.Processand STM cannot be found. Network and Directory are
found. I assume when ghc
is installed on Windows that the Windows
Hi
I'm curious about the best way to typeset haskell code in a wordpress
blog. Using blockquote removes all indentation. :-(
pre should work
Thanks
Neil
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Hi all,
I'm curious about the best way to typeset haskell code in a wordpress
blog. Using blockquote removes all indentation. :-(
Cheers,
--
Paulo Jorge Matos - pocm at soton.ac.uk
http://www.personal.soton.ac.uk/pocm
PhD Student @ ECS
University of Southampton, UK
module Main (Main.main) where
import Control.Monad
import System.IO
(*) :: Monad m = m () - (a - m ()) - (a - m ())
(*) f f' = \a - do{
f;
f' a;
}
main :: IO ()
main = mapM_ ((putStrLn ) * putStrLn) $
map show [1,2,3]
There is nothing wrong with that, but I would normally write:
On Fri, Nov 23, 2007 at 10:59:55AM +0300, Bulat Ziganshin wrote:
Hello brad,
Friday, November 23, 2007, 10:10:41 AM, you wrote:
if you need comprehensive support of http and ftp in one api/library, as
far as i know, the curl bindings are your only choice
1. Haskell binding is not
Dear all,
The Dimensional library has been ported to GHC 6.8.1 (it remains
backwards-compatible with GHC 6.6.1, and also with Cabal 1.1.6 I
believe). The new version number is 0.7.1.
Due to a GHC 6.8.1 bug (#1919) the CGS module will not compile and has
been disabled.
Thanks,
Bjorn Buckwalter
Felix Martini [EMAIL PROTECTED] writes:
The documentation of Visual Haskell mentions that the source code is
available under a BSD license. The code is not available from the
download page (http://www.haskell.org/visualhaskell/downloads.html).
Does anone know where to get it?
There is a
[ with mailing list maintainer's hat on ]
Someone asked me if they could get fewer digests per day from haskell-cafe.
The threshold for sending out a digest is currently 30k, which is
probably the default, but seems a bit small to me. Any objections to
bumping it, to say 100k?
Cheers,
Maurício wrote:
Hi,
If I have two computations a-IO b
and b-IO c, can I join them to
get an a-IO c computation? I imagine
something like a liftM dot operator.
You've already been shown the = operator and how to define it from =
by other answers.
Just for variety, here is how you would
Peter Verswyvelen wrote:
Laurent Deniau wrote:
Peter Verswyvelen wrote:
And you still need to think about where you have to introduce delays
to avoid infinite loops?
I don't see why, unless you want to have a memory or explicitly stop
the time which means it's a parameter of the transition as
Hi,
If I have two computations a-IO b and
b-IO c, can I join them to get an a-IO
c computation? I imagine something like a
liftM dot operator.
This is called Kleisli composition, by the way; it's
defined as (=) in Control.Monad.
jcc
Even if you didn't know about (=)(...):
On Sun, 2007-11-11 at 21:36 +, Alex Young wrote:
Hi all,
Does anyone know if c2hs should be working on Windows? I'm trying to
build it under ghc 6.8.0, but this happens:
I just uploaded c2hs-0.15.1 which builds with all recent versions of ghc
6.4-6.8. I also tested that it builds on
Hello,
Type representations using GADTs are being used to achieve dynamic
typing in Haskell. However, representing polymorphic types is
problematic. Does anyone know any work about including polymorphism
in dynamic typing?
Best regards,
Paulo
derek.a.elkins:
On Fri, 2007-11-23 at 18:45 +, Paulo Silva wrote:
Hello,
Type representations using GADTs are being used to achieve dynamic
typing in Haskell. However, representing polymorphic types is
problematic. Does anyone know any work about including polymorphism
in
main :: IO ()
main = mapM_ ((putStrLn ) * putStrLn) $
map show [1,2,3]
A couple other ways to do this code.
Without monad combinators
main = mapM_ putStrLn . (:) . intersperse . map show $ [1..3]
With your combinator, but collapsing it so we don't map over the
collection
On Fri, 2007-11-23 at 20:22 +, Paulo J. Matos wrote:
Hi all,
I'm curious about the best way to typeset haskell code in a wordpress
blog. Using blockquote removes all indentation. :-(
For the Gtk2Hs website I used a program (partly derived from hscolour)
to highlight and adds links to
can anyone provide a concise list of the major differences between
nhc98 and ghc? for example, can i build a cabal package with nhc98? i
get that ghc and nhc98 are not interchangeable, otherwise i am not
sure
thanks
pgpIGhA0uHtR7.pgp
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