On Wed, Oct 20, 2010 at 7:36 AM, Michael Snoyman mich...@snoyman.com wrote:
Hi all,
I saw a quote from Eric Kow via Neil Mitchell[1] that we don't spend
enough time writing tools. Well, I've decided that the most annoying
part of package maintainership right now is staying on top of new
Thanks for the answers, all. :-)
Since this doesn't seem to be the common knowledge I expected it to
be, I'll try to work out how it's done properly and blog about it. And
hopefully generate some much needed documentation for cabal along the
way.
What I want specifically is to have happy
That looks a lot like a double free [...]
there's definitely something about initializing libcurl:
http://curl.haxx.se/libcurl/c/curl_easy_init.html
uses nice phrases like may be letal in multi-threading
the documentation of Haskell curl
Hi Michael,
I want this tool. I fake it slightly by using my RSS reader and
http://page2rss.com/ to get notified when any packages I depend on
change, which basically works - but if you could provide a better
service (ideally integrated in to hackage), I'd use it.
Thanks, Neil
On Wed, Oct 20,
Well, here's an initial, ugly version of this tool. Feed it two
command line arguments: a cabal file, and the 00-index.tar file in the
.cabal/packages/hackage.haskell.org folder. More work to follow.
Michael
On Wed, Oct 20, 2010 at 12:25 PM, Neil Mitchell ndmitch...@gmail.com wrote:
Hi Michael,
My $.02 follows:
From: Michael Snoyman mich...@snoyman.com
There's only two skills which I think absolutely must go:
Other languages I know: C# .NET, XSLT, Microsoft SQL Server, XML, SQL,
CSS, C, C++, Java, HTML, Visual Basic Script, Pascal, Rexx, Basic and
assembler
tool building
Hi
I'm having some difficulty getting the above combination to work, I've
successfully used ODBC against MS but the MySQL stuff is creating some really
interesting error conditions in the HDBC-ODBC module.
My first thought is that it must be me, so does anyone out there have this
combination
On 20 October 2010 21:38, John Lato jwl...@gmail.com wrote:
Cabal, packaging, build and distribution tools
This should be two categories: Cabal internals and Software
packaging/distribution tools. Keep Cabal internals, possibly keep the
other
What does Cabal internals refer to? Actually
On 20 October 2010 21:52, Henning Thielemann
lemm...@henning-thielemann.de wrote:
On Wed, 20 Oct 2010, John Lato wrote:
Mathematics
I'd be interested in how many Haskellers refer to Category Theory here, and
how many to other mathematical subjects. :-)
I for one refer to other stuff;
| At the end of the day what motivated me to ask these questions it that
| I like very much defining newtypes for most of the types I use, I have
| completely forgotten about `type' aliasing. I'm completely happy to
| write Foo and unFoo all over the place to aid my type correctness, but
| I
On Wed, Oct 20, 2010 at 11:48 AM, Ivan Lazar Miljenovic
ivan.miljeno...@gmail.com wrote:
On 20 October 2010 21:38, John Lato jwl...@gmail.com wrote:
Cabal, packaging, build and distribution tools
This should be two categories: Cabal internals and Software
packaging/distribution tools.
On 20 October 2010 12:30, John Lato jwl...@gmail.com wrote:
[SNIP]
Again, Tool Authoring is too broad to be useful.
Who are the skills lists for?
Recruiters, other Haskellers to form strike forces, something else?
For the recruiters I think they are somewhat obscure unless Well-Typed
or Galois
On Tue, Oct 19, 2010 at 2:32 PM, Michael Snoyman mich...@snoyman.com wrote:
Algorithmic Problem Solving
I think this needs to go, because I'm really having a hard time
imagining any programmer who doesn't do this.
High Assurance Software Development
This sounds vague to me and/or the same as
Alright, the tool is up and incredibly basic right now. Go to:
http://packdeps.haskellers.com/, type a search string, and hit enter.
The site will filter through all of the cabal files for the most
recent releases of each package and select the ones where your search
string appears in the package
On Wed, Oct 20, 2010 at 9:02 AM, Ben Millwood hask...@benmachine.co.uk wrote:
Robotics and Automation
Would be tempted to drop Automation from here.
That name was deliberately chosen, and is appropriate for people in the area,
http://www.ieee-ras.org/
I have my own opinions on a lot of these
I just want to throw out 2 extreme case solutions to think about while this
problem doesn't really seem to be heading anywhere:
1) Drop the skills options in favor of the simple text box already in use.
This would of course would have a big impact on attempting to search for
haskellers.
2) A
Michael Snoyman wrote:
[1] http://hackage.haskell.org/package/mime-mail
Great news! This is an important package.
It's obviously very preliminary, though. This is not
trivial to get right - look at the long and colorful
history of the Python email library, detailed on the
first page of the
2 things.
1. Wow that's cool.
2. Is this technology not patented by Digital Fountain? (now Qualcomm?)
I remember when I first heard of fountain codecs, I thought it was science
fiction based on the description :-).
Dave
On Tue, Oct 19, 2010 at 8:00 PM, Tom Hawkins tomahawk...@gmail.com
On 10/20/10 9:12 AM, Anthony Cowley wrote:
We don't want people
outside of an area of interest governing name choices that lessen the
value of the tags.
To be honest, when the thread first came up, I was afraid NLP (or AG)
would end up on the cutting block because of that...
As a strawman
1. Wow that's cool.
Indeed.
2. Is this technology not patented by Digital Fountain? (now Qualcomm?)
I'm sure it is. This library is a naive implementation of LT codes,
which have nowhere near the performance of Digital Fountain's Raptor
codes.
I remember when I first heard of fountain
On 20 October 2010 13:09, Simon Peyton-Jones simo...@microsoft.com wrote:
Yes, you can freely use Foo/unFoo. There's no runtime penalty. (In the
jargon of GHC's intermediate language, Foo and unFoo translate to *type-safe
casts*, which generate no executable code.
That includes the
Excerpts from Johannes Waldmann's message of Wed Oct 20 05:13:36 -0400 2010:
and indeed, gethostbyname is famous for being non re-entrant.
If you have the time, this would be a great time to improve the multithreaded
support of these libraries. In particular, glibc offers a re-entrant version
Is it possible to easily connect Haskell to JavaScript/JavaFX in the
browser and use a browser as a Windows GUI? :)
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I have never used the above function you refer to so I am not sure
about it's semantics. However, I have successfully used functions in
System.Process module [1] (fairly standard) to spawn processes and get
their exit codes on Windows.
For example, (javac exits code 2 when provided no arguments)
Claus Reinke posted this a while ago - see the attachment at the
bottom of the message:
http://www.haskell.org/pipermail/haskell-cafe/2007-July/029275.html
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On Oct 20, 2010, at 11:58 AM, Gregory Crosswhite gcr...@phys.washington.edu
wrote:
On 10/20/10 4:09 AM, Simon Peyton-Jones wrote:
No, this isn't optimised. The trouble is that you write (map Foo xs), but
GHC doesn't know about 'map'. We could add a special case for map, but then
you'd
and indeed, gethostbyname is famous for being non re-entrant.
it already has a lock in Network.BSD, so I assume it's fine:
{-# NOINLINE lock #-}
lock :: MVar ()
lock = unsafePerformIO $ newMVar ()
withLock :: IO a - IO a
withLock act = withMVar lock (\_ - act)
getHostByName :: HostName -
Well, I must be doing something wrong but don't know where, the code
is rather straightforward.
Or the scalac.bat script is buggy:
Prelude Environment System.Process readProcessWithExitCode
d:/Program Files/scala-2.8.0/bin/scalac.bat [-d,target]
(ExitSuccess,,Exception in thread \main\
On Wed, Oct 20, 2010 at 3:11 PM, Stephen Tetley
stephen.tet...@gmail.com wrote:
Claus Reinke posted this a while ago - see the attachment at the
bottom of the message:
http://www.haskell.org/pipermail/haskell-cafe/2007-July/029275.html
Thanks for that. Here's the relevant website that he
On Wed, Oct 20, 2010 at 4:27 PM, Stephen Sinclair radars...@gmail.com wrote:
On Wed, Oct 20, 2010 at 3:11 PM, Stephen Tetley
stephen.tet...@gmail.com wrote:
Claus Reinke posted this a while ago - see the attachment at the
bottom of the message:
Hmm, in that case, one possibility is someone else did an FFI import of
gethostbyname and isn't using the same lock. Can you check for that?
Edward
Excerpts from Johannes Waldmann's message of Wed Oct 20 16:17:06 -0400 2010:
and indeed, gethostbyname is famous for being non re-entrant.
cas...@istar.ca wrote:
Is it possible to easily connect Haskell to JavaScript/JavaFX in
the browser and use a browser as a Windows GUI? :)
...
I meant call Haskell functions from a browser; so the browser handles
the GUI widgets and Haskell handles the processing. :)
It's pretty easy to get
Do we really want to treat every newtype wrappers as a form of 'id'?
For example:
newtype Nat = Nat Integer -- must always be positive
A possible rule (doesn't actually typecheck, but you get the idea):
forall (x :: Nat). sqrt (x * x) = x
If we ignore newtyping we get an incorrect
On 20/10/2010 09:48 PM, Anton van Straaten wrote:
It's pretty easy to get the basics going. There are a bunch of
options. Start here:
http://www.haskell.org/haskellwiki/Web
For what you're asking about, I'd suggest looking at the following
options from that page. All of these options
I was happy to see the recent announcement about hs-plugins being
updated to work with newer ghc. I have a project and had always been
planning to use it.
However, there are some questions I've had about it for a long time.
The 'yi' paper mentions both 'yi' and 'lambdabot' as users of
qdunkan:
However, there are some questions I've had about it for a long time.
The 'yi' paper mentions both 'yi' and 'lambdabot' as users of
hs-plugins. However, both those projects have long since abandoned
it. I can't find any documentation on why, or even any documentation
at all for Yi
You can use Network.Wai.Handler.SimpleServer from wai-extra[1]. If you
want a full framework, Yesod[2] has full Windows support.
Michael
[1] http://hackage.haskell.org/cgi-bin/hackage-scripts/package/wai-extra
[2] http://docs.yesodweb.com/
On Wed, Oct 20, 2010 at 11:10 PM, Andrew Coppin
Welcome to issue 155 of the HWN, a newsletter covering developments in
the [1]Haskell community in the week of October 10 - 16.
This time around we again have 87 posts to HackageDB. Instead of
posting the individual packages, we get to see and celebrate the 43
people behind these
So my questions are:
Why did lambdabot and yi abandon plugins?
Because it was unmaintained for around 5 years, and was fundamentally
less portable than simpler state serialization solutions that offered
some of the same benefits as full code hot swapping.
Fair enough. The idea of being
OK, never mind, I found the problem in my C code.
some uninitialized variables - mostly they were 0,
but sometimes not: I guess when I got mallocForeignPtrBytes
that were just freed by the garbage collector.
Although the program does a ton of allocations,
most start with memcpy of something
I've been working on this for some month and I think now I'm ready to
share the results.
http://github.com/sviperll/ghcjs
Haskell to Javascript translator
Project aims to provide solution to
* compile modern Haskell libraries to Javascript files and use
On 10/20/10 7:09 AM, Simon Peyton-Jones wrote:
Yes, you can freely use Foo/unFoo. There's no runtime penalty. (In the jargon
of GHC's intermediate language, Foo and unFoo translate to *type-safe casts*,
which generate no executable code.
When does the conversion to type-safe casts occur
I'm using this tutorial as a guide
http://flygdynamikern.blogspot.com/2009/03/extended-sessions-with-haskell-curl.html
github has changed since this was posted, but I have managed a
successful login. Now I am faced with dealing with a re-direct.
I found this constructor
CurlFollowLocation Bool
On Thursday 21 October 2010 01:11:25, wren ng thornton wrote:
On 10/20/10 7:07 PM, wren ng thornton wrote:
On 10/20/10 7:09 AM, Simon Peyton-Jones wrote:
Yes, you can freely use Foo/unFoo. There's no runtime penalty. (In
the jargon of GHC's intermediate language, Foo and unFoo translate to
Hi Michael,
On Wed, Oct 20, 2010 at 6:19 PM, Michael Litchard mich...@schmong.org wrote:
I'm using this tutorial as a guide
http://flygdynamikern.blogspot.com/2009/03/extended-sessions-with-haskell-curl.html
github has changed since this was posted, but I have managed a
successful login. Now
Andrew Coppin wrote:
I'd like to have a go at writing CGI in Haskell.
...
Does anybody know of a solution that works on Windows?
I've previously run Happstack on Windows. That was a couple of years
ago, though, so I don't know whether its Windows support is currently
working.
On Wed, 2010-10-20 at 10:37 +0200, Niklas Broberg wrote:
I think the right solution is for the happy source file to specify
what kind of grammar it is / should be produced. Yes, that would mean
modifying happy.
Hmm, I agree with you in this particular case, regarding the grammar,
since
Hi Evan,
Evan Laforge qdun...@gmail.com writes:
So my questions are:
Why did lambdabot and yi abandon plugins?
Because it was unmaintained for around 5 years, and was fundamentally
less portable than simpler state serialization solutions that offered
some of the same benefits as full code
I'm afraid I'll need a more complete example. When I try to modify the
code above (after correcting the conditional tests), I get the
following:
* About to connect() to github.com port 443 (#0)
* Trying 207.97.227.239... * connected
* Connected to github.com (207.97.227.239) port 443 (#0)
*
Last, i remove pdynload code from my project temporary with below reasons:
1) Hold running state is difficult, like network state in browser or
running state in terminal emulator.
This doesn't seem too hard to me. Provided you are not swapping the
module that defines the state in the first
On 21/10/2010, at 12:01 PM, Victor Nazarov wrote:
I've been working on this for some month and I think now I'm ready to
share the results.
Given that this is alpha code, what's the performance like?
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On Oct 20, 2010, at 5:06 PM, Thomas Schilling nomin...@googlemail.com wrote:
Do we really want to treat every newtype wrappers as a form of 'id'?
For example:
newtype Nat = Nat Integer -- must always be positive
A possible rule (doesn't actually typecheck, but you get the idea):
Evan Laforge qdun...@gmail.com writes:
Last, i remove pdynload code from my project temporary with below reasons:
1) Hold running state is difficult, like network state in browser or
running state in terminal emulator.
This doesn't seem too hard to me. Provided you are not swapping the
On Wed, Oct 20, 2010 at 8:31 PM, Michael Litchard mich...@schmong.org wrote:
I'm afraid I'll need a more complete example. When I try to modify the
code above (after correcting the conditional tests), I get the
following:
* About to connect() to github.com port 443 (#0)
* Trying
On Oct 20, 2010, at 7:28 PM, Anton van Straaten wrote:
Andrew Coppin wrote:
I'd like to have a go at writing CGI in Haskell.
...
Does anybody know of a solution that works on Windows?
I've previously run Happstack on Windows. That was a couple of
years ago, though, so I don't know
I am trying to figure out how to use this library, seems like this should work
Prelude Data.Time.ZoneInfo ctx - newContext Nothing
Prelude Data.Time.ZoneInfo name - zoneInfoName (utcOlsonZone ctx) True
Prelude Data.Time.ZoneInfo newOlsonZone ctx name
*** Exception:
passing a full path seems to work, despite the fact that the documentation says
newContext :: Maybe String - IO ContextSource
Create a Context object. A path to the zone-info database may be
specified. Otherwise, the TZDIR environment variable, or a reasonable
default, will be used. An IOError
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