Ivan Lazar Miljenovic wrote:
Heinrich Apfelmus writes:
I'm not sure what the right solution is, but I think it definitely
involves catering for different node types. For instance, the library
could operate on a type
newtype Graph node a b = Graph (Gr a b, Data.Map.Map Int node)
or it
Henning Thielemann wrote:
Ivan Miljenovic wrote:
You're splitting apart related data into _three_ different data
structures (the graph, vertex labels and edge labels)? _That_ doesn't
make sense.
There are no edge labels, only vertex labels. And yes, I find separation
of data
Heinrich Apfelmus apfel...@quantentunnel.de writes:
Ivan Lazar Miljenovic wrote:
As I said, we're considering using an Associated Type to let users
choose what type they want to use (probably with a default Map instance
for this). However, we'd recommend/push the Int-based one.
For my
Heinrich Apfelmus apfel...@quantentunnel.de writes:
It appears to me that the concerns of labels and vertexes are not
separate enough. After all, the point is that they have to be kept in
sync. Keeping them in sync should be the business of the graph library,
not of the user. It doesn't have
Ozgur Akgun wrote:
Hi all,
I am using vacuum-opengl and vacuum-ubigraph to visualise and analyse some
of my data structures. They are quite helpful most of the time, however
sometimes I feel the need to tweak the generated output -- such as removing
the auto-generted identifiers from
On Wed, May 12, 2010 at 7:50 AM, wren ng thornton w...@freegeek.org wrote:
wren ng thornton wrote:
Here's one big difference:
newtype ErrCPS e m a = ErrCPS { runErrCPS ::
forall r . (e - m r) -- error handler
- (a - m r) -- success handler
- m r }
The analogous version I use
On 12/05/2010 01:56, David Powell wrote:
Greetings,
I am having trouble sending unicode characters as utf8 over a socket handle.
Despite setting the encoding on the socket handle to utf8, it still seems to
use some other encoding when writing to the socket. It works correctly when
writing to
Hi all,
I was wondering if it's possible to get to the renamed source before
actually typechecking,
I currently have
parsed - parse modName
checked - typecheckModule parsed
let renamed = tm_renamed_source checked
value = tm_typechecked_source checked
On Tue, May 11, 2010 at 8:28 PM, wren ng thornton w...@freegeek.org wrote:
Max Cantor wrote:
Based on some discussions in #haskell, it seemed to be a consensus
that using a modified continuation monad for Error handling instead
of Eithers would be a significant optimization since it would
The difficulty is that renamer and type-checker are mutually recursive
because of Template Haskell. I've been looking into this a while ago
and I have a basic idea how a better API could look like, but I
haven't sorted out the details.
One very hacky workaround -- and I'm not sure whether it can
I am very pleased to announce that Issue 16 of The Monad.Reader is now
available [1].
Issue 16 consists of the following three articles:
* Demand More of Your Automata by Aran Donohue
* Iteratee: Teaching an Old Fold New Tricks by John W. Lato
* Playing with Priority Queues by Louis
I'm currently just getting into playing around with concurrency in
haskell, primarily because I find STM intriguing. In looking through
the docs I noticed that the transactional channels are GHC specific.
As far as I know, TChan needs the 'retry' combinator which requires GHC's RTS.
Same is true for TMVar, I think.
Peter
On 12 May 2010 21:15, Edward Amsden eca7...@cs.rit.edu wrote:
I'm currently just getting into playing around with concurrency in
haskell, primarily because I find STM
hi,
since i got no answer from the maintainer, maybe someone else can take
care of it, or at least point out, what i did wrong.
so, i recently stumbled upon some error while using Text.JSON 0.4.3 [1]:
Text/JSON/String.hs:(127,4)-(137,49): Non-exhaustive patterns in case
indeed ghc warned:
Hi,
I think it was probably I who wrote this, so I'll take the blame :-)
It seems like a genuine bug, where we are not checking for strings
that are not terminated. Thanks for spotting it, and also for the
patch! I'll try to update the package soon.
-Iavor
On Wed, May 12, 2010 at 12:53 PM,
On Wed, May 12, 2010 at 2:12 PM, Brent Yorgey byor...@seas.upenn.eduwrote:
I am very pleased to announce that Issue 16 of The Monad.Reader is now
available [1].
Issue 16 consists of the following three articles:
* Demand More of Your Automata by Aran Donohue
* Iteratee: Teaching an
On Wednesday 12 May 2010 21:53:41, Martin Hilbig wrote:
hi,
since i got no answer from the maintainer, maybe someone else can take
care of it, or at least point out, what i did wrong.
so, i recently stumbled upon some error while using Text.JSON 0.4.3 [1]:
Hi,
it seems that this was already fixed in the repo, I've put a new
version (0.4.4) on hackage. Thanks, again, for spotting this!
-Iavor
On Wed, May 12, 2010 at 1:24 PM, Daniel Fischer
daniel.is.fisc...@web.de wrote:
On Wednesday 12 May 2010 21:53:41, Martin Hilbig wrote:
hi,
since i got no
Thanks for the answer.
I see your point, that Ubigraph does some magic* to place vertices and
edges.
This makes me wonder, how they generate the binary tree demo:
http://ubietylab.net/ubigraph/content/Demos/random_binary_tree.html
Is there a way to disable this optimal graph layout determination
On May 13, 2010, at 6:12 AM, Brent Yorgey wrote:
I am very pleased to announce that Issue 16 of The Monad.Reader is now
available [1].
I am very pleased to receive it, and deeply grateful to
John Lato for his Iteratee article. Many thanks!
Excerpts from Brent Yorgey's message of Wed May 12 14:12:53 -0400 2010:
I am very pleased to announce that Issue 16 of The Monad.Reader is now
available [1].
Excellent news! Looking forward to reading.
Cheers,
Edward
___
Haskell-Cafe mailing list
Hi Cafe,
I have a program that I can reliably cause to hang. It's concurrent using
STM, so I think it could be a deadlock or related issue. I also do some IO,
so I think it could be blocking in a system call. It only hangs when
compiled with -threaded. I tried building with -prof, and running
On Wed, May 12, 2010 at 8:15 PM, Aran Donohue aran.dono...@gmail.comwrote:
Hi Cafe,
I have a program that I can reliably cause to hang. It's concurrent using
STM, so I think it could be a deadlock or related issue. I also do some IO,
so I think it could be blocking in a system call. It only
On Wed, May 12, 2010 at 7:24 PM, Edward Z. Yang ezy...@mit.edu wrote:
Excerpts from Brent Yorgey's message of Wed May 12 14:12:53 -0400 2010:
I am very pleased to announce that Issue 16 of The Monad.Reader is now
available [1].
Excellent news! Looking forward to reading.
I'm trying the
martin:
hi,
since i got no answer from the maintainer, maybe someone else can take
care of it, or at least point out, what i did wrong.
so, i recently stumbled upon some error while using Text.JSON 0.4.3 [1]:
Text/JSON/String.hs:(127,4)-(137,49): Non-exhaustive patterns in case
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