Change this:
succ - Lua.loadfile l /Haskell2Lua.lua
into
succ - Lua.loadfile l Haskell2Lua.lua
Note that 0 at the beginning says there was an error loading a script.
I should make it an exception I guess...
--
Gracjan
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Great! What's new in 0.12.0? I don't see a NEWS file and the ChangeLog is old.
Cheers! =)
--
Felipe.
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Felipe Lessa felipe.le...@gmail.com writes:
Great! What's new in 0.12.0? I don't see a NEWS file and the ChangeLog is
old.
Use command darcs changes see detail.
The NEWS in gtk2hs-0.12.0 :
* Support all APIs from GTK+2.8 ~ GTK+2.22
Look http://www.gtk.org/language-bindings.html
Of
Hi,
I've just released the first version of text-xml-qq, It's a Template Haskell
quasiquoter that converts XML code into Text.XML.Light.Element compile time.
Feature requests, bug fixes etc are welcomed. The package only got one
backend (xml-package) at the moment but it should be trivial to add
Hi Max,
neat idea! Haskell supports laziness even on the type level ;)
I tried to play with your code but did not get very far. I quickly ran
into two problems.
On Oct 22, 2010, at 7:37 PM, Max Bolingbroke wrote:
The annoying part of this exercise is the the presence of a Force in
the
I did that, the slash is a typo. I was looking at the Lua reference manual
and it says that lua_loadfile uses lua_load[1] which outputs 0 if
successful.
Appreciate the quick response.
-deech
[1] http://www.lua.org/manual/5.1/manual.html#lua_load
On Sat, Oct 23, 2010 at 2:49 AM, Gracjan Polak
Hi,
I'm trying to install the Leksah IDE and I've run into the problem that it
requires glib and gtk+.
Whenever I type 'configure' for glib-2.26.0 everything goes fine.
But when I type 'make' it goes through necessary actions and then suddenly
stops halfway through stating the following
On Oct 23, 2010, at 1:27 PM, Sebastian Fischer wrote:
I think `Control.Functor.Categorical.CFunctor` is a more natural replacement
for functor here. One can define
instance CFunctor (ListF a) ForceCat Hask
and I was hoping that I could define `fold` based on CFunctor but I did not
A little prettier (the cata detour wasn't needed after all):
data IdThunk a
type instance Force (IdThunk a) = a
type Alg f a = f (IdThunk a) - a
fold :: CFunctor f ForceCat (-) = Alg f a - Fix f - a
fold alg = alg . cmap (ForceCat $ fold alg)
sumAlg :: Alg (ListF Int) Int
On Fri, Oct 22, 2010 at 6:16 PM, Bulat Ziganshin
bulat.zigans...@gmail.comwrote:
Hello John,
Monday, October 18, 2010, 8:15:42 PM, you wrote:
If anyone is listening, I would very much like for there to be a
mechanism by which external functions can be called unsafe-ly, but
without
On 23 October 2010 15:32, Sjoerd Visscher sjo...@w3future.com wrote:
A little prettier (the cata detour wasn't needed after all):
data IdThunk a
type instance Force (IdThunk a) = a
Yes, this IdThunk is key - in my own implementation I called this Forced, so:
type instance Force (Forced
Hi all!
There will be an informal Haskell meeting in Berlin.
Date: Thursday, October 28th
Time: from 20:00
Location: c-base, Rungestrasse 20, 10179 Berlin
The bi-monthly lisp meeting takes place at the same time and place [1].
This is the first of hopefully more meetings to come, so we will
On 10/23/10 7:54 AM, John Lato wrote:
On Fri, Oct 22, 2010 at 6:16 PM, Bulat Ziganshin
bulat.zigans...@gmail.com mailto:bulat.zigans...@gmail.com wrote:
Hello John,
Monday, October 18, 2010, 8:15:42 PM, you wrote:
If anyone is listening, I would very much like for there to be a
I use Apply for Functor application in data-category, I used an infix operator
:%
http://hackage.haskell.org/packages/archive/data-category/0.3.0.1/doc/html/src/Data-Category-Functor.html#line-57
F.e. composition is defined like this:
type instance (g :.: h) :% a = g :% (h :% a)
Sjoerd
On
There will be an informal Haskell meeting [...]
The bi-monthly lisp meeting [...]
[1] http://www.c-base.org/calender/phpicalendar/month.php
Pray tell - which of the three above-mentioned languages is from the dark side?
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It looks good to me. Are there any objections to using this for Haskellers?
On Sat, Oct 23, 2010 at 3:31 AM, Nubis nu...@woobiz.com.ar wrote:
Hi guys,
It's me again, I made a new proposal for the website with the standard
colors.
I've put my pretentions of content being grouped by color, and
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 10/22/10 19:16 , Bulat Ziganshin wrote:
Monday, October 18, 2010, 8:15:42 PM, you wrote:
If anyone is listening, I would very much like for there to be a
mechanism by which external functions can be called unsafe-ly, but
without blocking all
Hi Bit,
On Thu, 21 Oct 2010, Bit Connor wrote:
On Sat, Oct 16, 2010 at 10:29 AM, Claus Reinke claus.rei...@talk21.com wrote:
After it catches this error, the function returns (line 376):
return (fail (show e))
The fail is running in the Either monad (The Result type = Either).
This calls
Hi Aditya,
The problem is not that the file was not loaded, but that in Lua,
loading a file only loads it and does not execute it; Lua is a dynamic
language, by which I mean that definitions are created through execution.
Attached is a simple example, note that there is no proper error
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 10/23/10 10:00 , Mark Spezzano wrote:
What, exactly is happening here? I've compiled libiconv and put it under
/usr/bin (so iconv is there). Yet it still complains...I don't get it. I've
spend the best part of a day mucking around with this to
On 23/10/10 17:42, Gregory Crosswhite wrote:
On 10/23/10 7:54 AM, John Lato wrote:
On Fri, Oct 22, 2010 at 6:16 PM, Bulat Ziganshin
bulat.zigans...@gmail.com mailto:bulat.zigans...@gmail.com wrote:
Hello John,
Monday, October 18, 2010, 8:15:42 PM, you wrote:
If anyone is listening, I would
On 10/23/10 12:57 PM, Claude Heiland-Allen wrote:
On 23/10/10 17:42, Gregory Crosswhite wrote:
On 10/23/10 7:54 AM, John Lato wrote:
On Fri, Oct 22, 2010 at 6:16 PM, Bulat Ziganshin
This doesn't work, which was why the OP asked in the first place. When
a thread calls an unsafe foreign
Hello Claude,
Saturday, October 23, 2010, 11:57:23 PM, you wrote:
Is that true? The last time we discussed this in Haskell Cafe the
conclusion I drew from the discussion was that unsafe foreign functions
block the current thread but not any other thread.
The conclusion I drew was that
On 23.10.2010 05:11, wren ng thornton wrote:
On 10/22/10 8:46 AM, Alexey Khudyakov wrote:
Hello everyone!
It's well known that Num Co type classes are not adequate for vectors
(I don't mean arrays). I have an idea how to address this problem.
Conal Elliott wrote very nice set of type classes
Alexey Khudyakov alexey.sklad...@gmail.com writes:
However when written this way it becomes obvious that
`zeroV' == `mempty' and ^+^ = mappend. Is Additive really needed then?
If your type is a ring, you have two monoids; how would you choose?
G
--
Gregory Collins g...@gregorycollins.net
On Saturday 23 October 2010 22:53:32, Alexey Khudyakov wrote:
type family Scalar :: * - *
class Additive v = LeftModule v where
(*^) :: Scalar v - v - v
class Additive v = RightModule v where
(^*) :: v - Scalar v - v
Could you give some example of data type for which (*^) ≠
Just out of curiosity, why do you (and many others I've seen with similar
proposals) talk about additive monoids? are they somehow fundamentally
different from multiplicative monoids? Or is it just a matter of notation?
When I was playing with building an algebraic hierarchy, I picked a
neutral
On 24.10.2010 01:19, Daniel Peebles wrote:
Just out of curiosity, why do you (and many others I've seen with
similar proposals) talk about additive monoids? are they somehow
fundamentally different from multiplicative monoids? Or is it just a
matter of notation? When I was playing with building
On 23/10/2010 5:19 PM, Daniel Peebles wrote:
Just out of curiosity, why do you (and many others I've seen with
similar proposals) talk about additive monoids? are they somehow
fundamentally different from multiplicative monoids?
People usually use additive notation for commutative monoids,
Quoth Claude Heiland-Allen claudiusmaxi...@goto10.org,
...
The conclusion I drew was that unsafe foreign functions block the
current capability (OS thread) and any threads (Haskell forkIO etc)
currently scheduled on that capability, but other capabilities and
threads continue executing as
Hi.
What are the available methods to execute IO actions from pure code?
I know only unsafePerformIO and foreign import (to call a non pure
foreign function).
Assuming I want to execute external untrusted code using plugins (via
the `plugins` package), is it possible to completely forbid
On 23/10/10 23:28, Manlio Perillo wrote:
Hi.
What are the available methods to execute IO actions from pure code?
I know only unsafePerformIO and foreign import (to call a non pure
foreign function).
Assuming I want to execute external untrusted code using plugins (via
the `plugins`
On Sat, Oct 23, 2010 at 8:49 PM, Ganesh Sittampalam gan...@earth.li wrote:
Hi Bit,
On Thu, 21 Oct 2010, Bit Connor wrote:
On Sat, Oct 16, 2010 at 10:29 AM, Claus Reinke claus.rei...@talk21.com
wrote:
After it catches this error, the function returns (line 376):
return (fail (show e))
On Sat, Oct 23, 2010 at 12:40 PM, Andy Stewart
lazycat.mana...@gmail.com wrote:
* Support newest GIO library (Cross platform file APIs)
You can use GIO develop cross-platform file-manager, like this :
http://www.flickr.com/photos/48809...@n02/4793031888/lightbox/
Wow. That looks like a
On 10/23/10 2:33 PM, Brandon S Allbery KF8NH wrote:
I think they mean please don't conflate `reentrant' with `blocking' in the
FFI.
Not knowing much about the guts of GHC's implementation of the FFI, I
wonder if there would actually be an implementational difference in
distinguishing
On 10/23/10 4:53 PM, Alexey Khudyakov wrote:
On 23.10.2010 05:11, wren ng thornton wrote:
I'd rather see,
class Additive v where -- or AdditiveMonoid, if preferred
zeroV :: v
(^+^) :: v - v - v
class Additive v = AdditiveGroup v where
negateV :: v - v
Seems good for me. One more instance
On 10/23/10 5:19 PM, Daniel Peebles wrote:
Just out of curiosity, why do you (and many others I've seen with similar
proposals) talk about additive monoids? are they somehow fundamentally
different from multiplicative monoids? Or is it just a matter of notation?
When I was playing with building
On 10/23/10 7:52 PM, wren ng thornton wrote:
I'd argue that neither usage is primary, and therefore the best
solution is actually to have three classes (neutral, additive, and
multiplicative) with two functors (additive-neutral,
multiplicative-neutral) to connect them[1].[...]
[1] the Exp/Log
On Oct 23, 2010, at 2:57 PM, Claude Heiland-Allen claudiusmaxi...@goto10.org
wrote:
On 23/10/10 17:42, Gregory Crosswhite wrote:
On 10/23/10 7:54 AM, John Lato wrote:
On Fri, Oct 22, 2010 at 6:16 PM, Bulat Ziganshin
bulat.zigans...@gmail.com mailto:bulat.zigans...@gmail.com wrote:
Hello John,
Looks perfect to me. Go for it!
PS: I'm reading your book, I have never tried web dev before but Yesod
feels very right
On Sat, Oct 23, 2010 at 08:09:25PM +0200, Michael Snoyman wrote:
It looks good to me. Are there any objections to using this for Haskellers?
On Sat, Oct 23, 2010 at 3:31
That worked. Thank you!
-deech
On Sat, Oct 23, 2010 at 1:49 PM, Claude Heiland-Allen
claudiusmaxi...@goto10.org wrote:
Hi Aditya,
The problem is not that the file was not loaded, but that in Lua, loading a
file only loads it and does not execute it; Lua is a dynamic language, by
which I
On Oct 24, 2010, at 8:52 AM, wren ng thornton wrote:
But then, how should we decide whether the additive or
multiplicative structure is more neutral?
On Oct 24, 2010, at 7:08 AM, Jacques Carette wrote:
People usually use additive notation for commutative monoids, and
multiplicative
Hi,
I checked the Hackage Splay Tree implementation from.
http://hackage.haskell.org/packages/archive/TreeStructures/0.0.1/doc/html/src/Data-Tree-Splay.html#SplayTree
Basically it's based on the strategy mentioned in Okasaki's ``Purely
Functional Programming'', Chapter 5.4.
That in case we
Cool, I'm glad you like it. Just as an FYI, I'm going to be moving
some of the information around soon (I finally wrote a proper outline
for the book), so it may be a bit confusing one day ;).
Michael
On Sun, Oct 24, 2010 at 3:56 AM, Paul Brauner paul.brau...@loria.fr wrote:
Looks perfect to
Hi all,
The HsLua page [1] says that Int,Double,String,Bool,[a] and [(a,b)] types
can be converted to and from Lua values. However the on hslua API page I
don't see a StackValue instance [2] for [a] or [(a,b)]. Am I missing
something?
-deech
[1]
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