Chris Smith writes:
>> I disagree, I've always interpreted the license to cover the text in
>> that particular package.
> There seems to be a difference in focus here that's confusing to me.
> When I write a library, my primary concern is generally with helping
> others use that library
I'm not
It seems that the problem is to follow a protocol, reporting protocol
errors (unexpected responses) and permitting recovery if the
`supervisor' decided that the error can be fixed by re-reading from
the server.
This problem -- specifically, communicating with a supervisor
`out-of-band' and recove
Thank you. I am looking into it.
On Thu, Jan 27, 2011 at 5:05 PM, wrote:
>
> It seems that the problem is to follow a protocol, reporting protocol
> errors (unexpected responses) and permitting recovery if the
> `supervisor' decided that the error can be fixed by re-reading from
> the server.
>
aditya siram writes:
> Yep, I do this often and it's pretty nasty. It's especially
> inconvenient that you don't have access to computations before the if,
> for example:
> do
> x <- something
> y <- something-else
> case y of
> Foo a -> do
> <--- I want access to 'x
On Thu, 27 Jan 2011, Magnus Therning wrote:
2011/1/27 Henning Thielemann :
On Thu, 27 Jan 2011, Kazu Yamamoto (山本和彦) wrote:
I'm using parsec3 with the applicative style. Since the functions in
Control.Applicative and parsec3 conflicts, I need to use the "hiding"
keyword as follows:
Hello,
As Jeremy said, the HTML returned by formHtml is meant to be placed
inside the a tag: it does not include a tag. You should
use it like this:
> H.form ! A.enctype (H.stringValue $ show enctype)
>! A.method "POST" ! A.action "/" $ do
> html
OK thanks, now it's clear!
On Thu, Jan 27, 2011 at 11:13 AM, Jasper Van der Jeugt
wrote:
> Hello,
>
> As Jeremy said, the HTML returned by formHtml is meant to be placed
> inside the a tag: it does not include a tag. You should
> use it like this:
>
> > H.form ! A.enctype (H.stringV
So I find myself being asked to plan Haskell programming classes for one
hour, once a week, from September through May this coming school year.
The students will be ages 11 to 13. I'm wondering if anyone has
experience in anything similar that they might share with me. I'm
trying to decide if thi
On 27 January 2011 15:04, Chris Smith wrote:
[SNIP]
> I'm wondering if anyone has
> experience in anything similar that they might share with me. I'm
> trying to decide if this is feasible, or it I should try to do something
> different.
Hi Chris
John Peterson had some nice work using Haskore a
Ye gods! A B & D [1] language for kids? At least give them a fighting
chance [2] at becoming future developers.
Haskell's immutability is good for mathematics but doing anything else
takes a great deal of up-front patience and perseverance, two very
rare qualities in that demographic if my own chi
El 27/01/11 16:04, Chris Smith escribió:
> To be honest, as much as I love Haskell, I tried to push the idea of
> learning a different language; perhaps Python. So far, the kids will
> have none of it! This year, I've been teaching a once-a-week
> exploratory mathematics sort of thing, and we've
Hi,
You said "Haskell's immutability is good for mathematics but doing anything else
takes a great deal of up-front patience and perseverance[...]"
I guess it is true for imperative programmers... but are you saying
that about kids that just know how to use a calculator?
Cheers,
Thu
2011/1/27 a
Hi,
I'm also curious about this. Is a pure programming style like
Haskell's less or more natural than an imperative mutable-state based
one to kids without experience. I intuitively expect that for kids
with a high-school background in mathematics would find the first more
natural, but this is not
On Thu, 2011-01-27 at 15:26 +, Stephen Tetley wrote:
> John Peterson had some nice work using Haskore and Fran for elementary
> teaching on the old Haskell.org website. Google's cache says the old
> URL was here but its now vanished:
>
> www.haskell.org/edsl/campy/campy-2003-music.ppt
That so
Hi everyone,
Firstly, after some feedback, I'm releasing some point updates for WAI
and Warp. They fix some documentation issues, add some status aliases,
make it possible to handle exceptions more easily, and make things
more responsive on Windows.
Next, I'm releasing two new packages: wai-app-s
Hi Chris,
I was a little negative in my last message so maybe I can contribute
something positive. If you're looking for a musical way to teach
Haskell I did a Haskell music hackathon [1] about a year and a half
ago. The idea was to use Haskell [2] to play music through a
Supercollider music serve
On Thu, 27 Jan 2011 16:26:01 +0100, Stephen Tetley
wrote:
On 27 January 2011 15:04, Chris Smith wrote:
[SNIP]
I'm wondering if anyone has
experience in anything similar that they might share with me. I'm
trying to decide if this is feasible, or it I should try to do something
different.
On Thu, 2011-01-27 at 00:45 -0500, wren ng thornton wrote:
> On 1/26/11 5:51 AM, Maciej Piechotka wrote:
> > Some projects (like Linux) remove this clause and I'm not sure how many
> > projects are marked on hackage as GPL2 being GPL2-only.
>
> Technically GPLx and GPLy are incompatible for all x
> Ye gods! A B & D [1] language for kids? At least give them a fighting
> chance [2] at becoming future developers.
>
> Haskell's immutability is good for mathematics but doing anything else
> takes a great deal of up-front patience and perseverance, two very
> rare qualities in that demographic if
I have a project that involves building a shared library containing code
generated by GHC and exposed using the foreign function interface to
other C programs that link against it. I'm able to build a functioning
library without issue on 32bit x86 systems using GHC 6.8.2 and 6.12.3.
When I try
Whether you're an established academic or have only just started
learning Haskell, if you have something to say, please consider
writing an article for The Monad.Reader! The submission deadline
for Issue 18 will be:
**Friday, April 1, 2011**
This will be a normal issue -- but don'
Thanks to http://www.well-typed.com/blog/30 I was able to figure out
what I was doing wrong. Replacing "-optl -shared" with just "-shared"
and using "-dynamic" allows linking to complete. :D
On 2011-01-27 11:59 AM, Eric Webster wrote:
I have a project that involves building a shared library co
L.S.,
Only four days until the old Haskell.org server disappears; I found the
following missing:
http://www.haskell.org/yale/
http://darcs.haskell.org/hfuse/
http://haskell.org/gtk2hs/
http://haskell.org/FranTk
http://www.haskell.org/yampa/
http://www.haskell.org/visualhaskell/
http
On Thu, 27 Jan 2011 20:59:06 +0100, Eric Webster wrote:
I have a project that involves building a shared library containing code
generated by GHC and exposed using the foreign function interface to
other C programs that link against it. I'm able to build a functioning
library without issue on 3
On 1/27/11 2:21 PM, Maciej Piechotka wrote:
On Thu, 2011-01-27 at 00:45 -0500, wren ng thornton wrote:
On 1/26/11 5:51 AM, Maciej Piechotka wrote:
Some projects (like Linux) remove this clause and I'm not sure how many
projects are marked on hackage as GPL2 being GPL2-only.
Technically GPLx a
Has anyone ever experienced a situation similar to this?
Wrote toy code to learn how to make a cookie jar.
Toy code succeeds, add functionality and better organization.
new improved program works correcty, as far as forming correct headers and
GET requests.
no cookie jar..
Checked old toy code,
On Thu, 2011-01-27 at 16:40 +0100, klondike wrote:
> Two days ago I was referred to this project:
> http://wizbang.sourceforge.net/WizBang/WizBang.html The language is
> quite imperative but to me looks as a child friendly programming
> language due to its low complexity.
Thanks for this and other
On Thu, 2011-01-27 at 11:44 -0600, aditya siram wrote:
> I was a little negative in my last message so maybe I can contribute
> something positive. If you're looking for a musical way to teach
> Haskell I did a Haskell music hackathon [1] about a year and a half
> ago. The idea was to use Haskell
Hi folks,
how do I make this work: I want a division algebra over a field k, and I want
to define
the conjugation of complex numbers, i.e. conj (C 1 2) but also the conjugation
of tensors of complex numbers
conj (C (C 1 2) (C 1 4))
ghci load that stuff butt barfs on a simple
> conj (C 1 2)
wit
On Thu, Jan 27, 2011 at 9:35 PM, Frank Kuehnel wrote:
> Hi folks,
>
> how do I make this work: I want a division algebra over a field k, and I want
> to define
> the conjugation of complex numbers, i.e. conj (C 1 2) but also the
> conjugation of tensors of complex numbers
> conj (C (C 1 2) (C 1
Hi,
Am Donnerstag, den 27.01.2011, 23:42 +0100 schrieb Henk-Jan van Tuyl:
> Only four days until the old Haskell.org server disappears; I found the
> following missing:
add http://oldhaskell.cs.yale.edu/hmake/ to that list.
Thanks,
Joachim
--
Joachim "nomeata" Breitner
mail: m...@joachim
On Thu, 2011-01-27 at 09:28 -0600, aditya siram wrote:
> Ye gods! A B & D [1] language for kids?
I do share those concerns. Like I said in the original post, my initial
reaction was to push for something like Python. But the kids are very
clear; if I'm at all willing, they want to learn Haskell!
On Thu, Jan 27, 2011 at 10:09 PM, Frank Kuehnel wrote:
> Hi Antoine,
>
> I've turned on the OverlappingInstances option
>
> this is what I get, when I execute
>
>> conj ((C 1 2) :: (Complex Int))
>
> Overlapping instances for DAlgebra (Complex Float) (Complex Float)
> arising from a use of
Thanks Antoine,
indeed ,
instance DAlgebra Integer Integer where ...
disambiguates it enough, then it works!!
Is there a way to use
instance DAlgebra (Real a) (Real a) where ... in some sort?? I know it doesn't
compile!
On Jan 27, 2011, at 8:33 PM, Antoine Latter wrote:
> On Thu, Jan 27, 2
My university requires the students to use internet through an authenticated
http proxy. How do I configure cabal for that? I am using Ubuntu. Please be
detailed about it.
Thanks
Azeem
___
Haskell-Cafe mailin
On 28 January 2011 15:13, Azeem -ul-Hasan wrote:
> My university requires the students to use internet through an authenticated
> http proxy. How do I configure cabal for that? I am using Ubuntu. Please be
> detailed about it.
Do you mean Cabal or cabal-install?
Assuming the latter:
export http
Please explain this a bit. Where are the configuration files for cabal install.
I tried to enter the line in the terminal and it apparently it accepted i.e
gave no error but then running cabal update results in this error
No action for prompting/generating user+password credentials provided (
On 28 January 2011 16:00, Azeem -ul-Hasan wrote:
>
> Please explain this a bit. Where are the configuration files for cabal
> install.
cabal-install is configured in ~/.cabal/config
However, as far as I'm aware it uses normal http connections and
doesn't require any particular configuration for
Hi all,
I've had good luck with Haskore as a way to bring kids into functional
programming. It's nice in that you can get a lot done in just 2 or 3 hours.
Lately I've switched over to a 3D game engine using FRP to make the programming
simple. I've been running a summer camp
(https://www.wes
Hi,
you might want to take a look at [1]AdvancedOverlap.
However, the most simple option would be to wrap up your (Real a =>
DAlgebra a a) instance in a newtype:
> {-# LANGUAGE GeneralizedNewtypeDeriving #-}
>
> newtype FromReal a = FromReal a deriving (Eq, Ord, Read, Show, Num, Real)
>
>ins
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