On Sat, Mar 31, 2012 at 7:15 PM, Peter Minten peter.min...@orange.nl wrote:
On Fri, 2012-03-30 at 09:15 +0300, Michael Snoyman wrote:
First you state that we shouldn't use `union` for the `ePitch` Event,
and then you used it for `bOctave`. Would it be more efficient to
implement bOctave
On Sun, Apr 1, 2012 at 8:46 PM, Jeremy Shaw jer...@n-heptane.com wrote:
Hello,
As we all know, the true measure of performance for a web server is
the classic PONG test. And, so the Happstack team is pleased to
announce the release of the new acme-http server!
hackage:
On Mon, Apr 2, 2012 at 3:38 PM, Alp Mestanogullari alpmes...@gmail.com wrote:
Lesson learned: for next year, write a Haskell program that tells if a given
-cafe thread or reddit discussion is a April Fool's joke or not.
import Data.Time
main = do
now - getCurrentTime
let (_, month,
`
instance.
Regards,
Paul Liu
On Tue, Dec 27, 2011 at 3:45 PM, Aristid Breitkreuz
arist...@googlemail.com wrote:
Hi all,
As you may have noticed, Michael Snoyman has been working on an
alternative approach to I/O, called conduits. You can find it here:
https://github.com/snoyberg
On Wed, Apr 4, 2012 at 7:59 PM, MightyByte mightyb...@gmail.com wrote:
pranjal pandit pranjal5215 at gmail.com writes:
Hi,I would like to work on improving the HDBC as a GSOC project 2012. I have
a previous working experience with Django and its ORM and I had a look at
Amnesia
Hi everyone,
I'd like to announce the availability of the Yesod 1.0 release
candidate. The code is available on Hackage now, so you should be able
to install with a simple `cabal update cabal install yesod` to get
up-and-running. If you've been installing from Github or Yackage,
you'll probably
On Thu, Apr 5, 2012 at 12:05 PM, Gregory Collins
g...@gregorycollins.net wrote:
+haskell-cafe, oops
On Thu, Apr 5, 2012 at 11:04 AM, Gregory Collins g...@gregorycollins.net
wrote:
On Wed, Apr 4, 2012 at 10:09 PM, tsuraan tsur...@gmail.com wrote:
It's hard to rule Snap timeouts out; try
On Apr 8, 2012 8:47 AM, Bryan Oapos;Sullivan b...@serpentine.com wrote:
On Sun, Mar 18, 2012 at 12:02 AM, Michael Snoyman mich...@snoyman.com
wrote:
OK, issue created: https://github.com/bos/text/issues/19
I fixed the too-much-inlining bug tonight. As a bonus, Text literals are
now decoded
On Mon, Apr 9, 2012 at 12:58 PM, Erik de Castro Lopo
mle...@mega-nerd.com wrote:
Hi all,
Is there some sort of a guide for converting existing code Conduit 0.4?
What happened to Control.Monad.Trans.Resource.with?
What happens to stuff that used to to have a type C.Source m a which
now
On Mon, Apr 9, 2012 at 2:27 PM, Erik de Castro Lopo
mle...@mega-nerd.com wrote:
Michael Snoyman wrote:
Hmm... I'd be surprised if you really need the Pipe signature that
you're providing.
I'm not providing it, the compiler is suggesting it:
Network/HTTP/Proxy.hs:835:47:
Couldn't
On Mon, Apr 9, 2012 at 2:37 PM, Ivan Lazar Miljenovic
ivan.miljeno...@gmail.com wrote:
On 9 April 2012 21:34, Michael Snoyman mich...@snoyman.com wrote:
It's caused by fmap. This is one of the downsides with the move to a
single type:
I've been reading the various posts you've been making
Hi all,
Hideyuki Tanaka alerted me[1] to a memory leak in conduit. Long story
short: it appears that Pipe composition leads to collection of a large
number of `return ()` actions for unnecessary memory cleanup. We came
up with a possible solution: a Finalize type[2]. In both of our
testing, this
On Thu, Apr 12, 2012 at 9:25 AM, Myles C. Maxfield
myles.maxfi...@gmail.com wrote:
Hello,
I am interested in the argument to Done, namely, leftover data. More
specifically, when implementing a conduit/sink, what should the
conduit specify for the (Maybe i) argument to Done in the following
On Mon, Apr 16, 2012 at 12:12 AM, Myles C. Maxfield
myles.maxfi...@gmail.com wrote:
Thanks for responding to this. Some responses are inline.
On Sat, Apr 14, 2012 at 8:30 PM, Michael Snoyman mich...@snoyman.com wrote:
[snip]
No, nothing so complicated is intended. Most likely you'll never
for responding to this. Some responses are inline.
On Sat, Apr 14, 2012 at 8:30 PM, Michael Snoyman mich...@snoyman.com
wrote:
On Thu, Apr 12, 2012 at 9:25 AM, Myles C. Maxfield
myles.maxfi...@gmail.com wrote:
Hello,
I am interested in the argument to Done, namely, leftover data. More
On Mon, Apr 16, 2012 at 2:50 AM, grant the...@hotmail.com wrote:
Hi, I am trying to use process-conduit on windows, but it appears to hang
when using the conduitCmd.
Is there a reason why this doesn't work?
Thanks for any help,
Grant
I have made an attempt to create a version of process
Hi all,
Following a little thread on Reddit[1], I'm trying to add rewrite
rules to conduit to make some simple usages of `yield` more efficient.
I've pushed these changes to a branch on Github[2]. However, I'm not
able to fully optimize the following program:
import Data.Conduit
import qualified
On Thu, Apr 19, 2012 at 11:47 AM, Joachim Breitner
m...@joachim-breitner.de wrote:
Hi Michael,
Am Mittwoch, den 18.04.2012, 19:21 +0300 schrieb Michael Snoyman:
I'm quite a novice at rewrite rules; can anyone recommend an approach
to get my rule to fire first?
I’m not an expert of rewrite
Hi all,
I'm wondering if there are still active users out there of
http-enumerator. Four months ago I released http-conduit, and since
then, my development efforts have gone almost exclusively there. At
this point, I'm not longer actively using http-enumerator on any of my
projects, and while
OK, since no one seems interested in it anymore, I've deprecated the package.
On Thu, Apr 19, 2012 at 12:33 PM, Michael Snoyman mich...@snoyman.com wrote:
Hi all,
I'm wondering if there are still active users out there of
http-enumerator. Four months ago I released http-conduit, and since
I had a bug in a site of mine[1] for a few weeks, where it would just print:
Prelude.head: empty list
It took a long time to track down the problem, as it came from some
other library I was depending on. Eventually I tracked it down,
reported it, and the problem was fixed the next day. The
On Wed, Apr 25, 2012 at 7:28 PM, Ozgur Akgun ozgurak...@gmail.com wrote:
Hi,
On 25 April 2012 16:36, Michael Snoyman mich...@snoyman.com wrote:
Prelude.head: empty list
Recent versions of GHC actually generate a very helpful stack trace, if the
program is compiled with profiling turned
On Thu, Apr 26, 2012 at 5:05 PM, Joachim Breitner
m...@joachim-breitner.de wrote:
Hi,
Am Mittwoch, den 25.04.2012, 18:36 +0300 schrieb Michael Snoyman:
I'm sure there are many better ways to approach the problem, and I
can't speak to the complexity of implementation within GHC. I *can*
say
On Wed, May 2, 2012 at 11:36 AM, Warren Harris warrensomeb...@gmail.com wrote:
I would like to use LevelDB in my code, and the HEAD version of
leveldb-haskell now uses runResourceT to manage open db connections and
iterators. I would also like to run multiple threads, and coordinate them
for
On Thu, May 3, 2012 at 11:11 PM, Paolo Capriotti p.caprio...@gmail.com wrote:
Hi,
I'm trying to write a function to convert a conduit to a Pipe (from
pipes-core), and I'm having trouble understanding why the `Finalize`
field in a `PipeM` constructor returns `r`. This makes it impossible
to
I agree that this behavior is non-intuitive, but still believe it's
the necessary approach. The short answer to why it's happening is that
there's no exit path in the yield version of the function. To
understand why, let's expand the code a little bit. Realizing that
liftIO = lift . liftIO
/await would be a good solution to the problem?
Michael
On Mon, May 21, 2012 at 6:07 AM, Michael Snoyman mich...@snoyman.com wrote:
I agree that this behavior is non-intuitive, but still believe it's
the necessary approach. The short answer to why it's happening is that
there's no exit path
-class were
incompatable.
This is just a guess - I have not tried what you are trying.
On Jun 2, 2012 6:35 PM, Myles C. Maxfield myles.maxfi...@gmail.com
wrote:
To: Michael Snoyman
CC: haskell-cafe
Hello,
I'm having a problem working with the conduit library, and was hoping
you could help
On Tue, Jun 26, 2012 at 10:22 PM, Nicolas Trangez nico...@incubaid.com wrote:
Hello Cafe,
Some time ago I tried to implement a network service using iteratee (or
enumerator, can't remember), but gave up in the end. More recently I
wanted to create something similar (a similar protocol), but
On Wed, Jun 27, 2012 at 10:41 AM, Erik de Castro Lopo
mle...@mega-nerd.com wrote:
Michael Snoyman wrote:
That's
the reason I added connect-and-resume to conduit. I use the technique
in warp[1], which in fact *does* support multiple request/response
pairs due to connection keep-alive
Hi all,
I'm just about ready to make the 0.5 release of conduit. And as usual,
I'm running up against the hardest thing in programming: naming
things.
Here's the crux of the matter: in older versions of conduit, functions
would have a type signature of Source, Sink, or Conduit. For example:
On Thu, Jun 28, 2012 at 8:36 PM, Paolo Capriotti p.caprio...@gmail.com wrote:
On Thu, Jun 28, 2012 at 6:11 PM, Michael Snoyman mich...@snoyman.com wrote:
Hi all,
I'm just about ready to make the 0.5 release of conduit. And as usual,
I'm running up against the hardest thing in programming
Hi Kashyap,
I'm not sure if it will solve the problem, but I ran across a tool[1]
the other day that bundles up applications with all of the libraries
and other resources they need. I wouldn't be surprised if, with this,
you can get your code to run on OpenShift.
Michael
[1]
Hi all,
A quick search indicates that this problem has come up in the past,
but I haven't seen any solutions yet. I'm working on the next
Persistent release, and one of the changes is that the included
sqlite3 C library has been updated (I believe that's the trigger
here). I can compile programs
On Wed, Jul 11, 2012 at 5:47 PM, Brandon Allbery allber...@gmail.com wrote:
On Wed, Jul 11, 2012 at 10:25 AM, Michael Snoyman mich...@snoyman.com
wrote:
test.hs:
/home/ubuntu/.cabal/lib/persistent-sqlite-1.0.0/ghc-7.4.1/HSpersistent-sqlite-1.0.0.o:
unknown symbol `stat64'
test.hs: test.hs
On Wed, Jul 11, 2012 at 9:55 PM, Bardur Arantsson s...@scientician.netwrote:
On 07/11/2012 05:12 PM, Michael Snoyman wrote:
Thanks for the feedback. However, looking at sqlite3.c, I see the
necessary #include statements:
#include sys/types.h
#include sys/stat.h
#include unistd.h
On Thu, Jul 12, 2012 at 6:29 PM, Michael Snoyman mich...@snoyman.comwrote:
On Wed, Jul 11, 2012 at 9:55 PM, Bardur Arantsson s...@scientician.netwrote:
On 07/11/2012 05:12 PM, Michael Snoyman wrote:
Thanks for the feedback. However, looking at sqlite3.c, I see the
necessary #include
On Thu, Jul 12, 2012 at 7:07 PM, Tristan Ravitch travi...@cs.wisc.eduwrote:
On Thu, Jul 12, 2012 at 06:29:41PM +0300, Michael Snoyman wrote:
I've come up with a minimal example that demonstrates this problem. The
crux of the matter is the following C code:
#include sys/types.h
On Jul 12, 2012 7:13 PM, Tristan Ravitch travi...@cs.wisc.edu wrote:
On Thu, Jul 12, 2012 at 11:07:05AM -0500, Tristan Ravitch wrote:
Are you trying this on a 32 bit system? And when you compiled that C
program, did you try to add
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE
to
On Thu, Jul 12, 2012 at 7:30 PM, Tristan Ravitch travi...@cs.wisc.eduwrote:
On Thu, Jul 12, 2012 at 07:20:39PM +0300, Michael Snoyman wrote:
On Jul 12, 2012 7:13 PM, Tristan Ravitch travi...@cs.wisc.edu wrote:
On Thu, Jul 12, 2012 at 11:07:05AM -0500, Tristan Ravitch wrote:
Are you
On Tue, Jul 31, 2012 at 1:13 PM, Alexander Foremny
alexanderfore...@gmail.com wrote:
Hello list,
I am currently thinking that a problem of mine would best be solved if
there was a Map-like data structure in which the value returned is
parametrized over the lookup type.
I wonder is this
Hi all,
I've been working with Aristid on an enhancement to resourcet[1]. Please
see the issue for more details, this email isn't about that change.
Instead, now that we're looking at a new breaking release, I was wondering
if anyone had ideas of something they thought should be changed in
On Thu, Aug 16, 2012 at 5:38 AM, Conrad Parker con...@metadecks.org wrote:
On 16 August 2012 03:38, Bryan O'Sullivan b...@serpentine.com wrote:
Hi, folks -
I'm sure we are all familiar with the phrase cabal dependency hell at
this
point, as the number of projects on Hackage that are
On Wed, Aug 15, 2012 at 9:54 PM, Daniel Hlynskyi abcz2.upr...@gmail.comwrote:
Hello Cafe.
Consider code, that takes input from handle until special substring
matched:
matchInf a res s | a `isPrefixOf` s = reverse res
matchInf a res (c:cs) = matchInf a (c:res) cs
Hi all,
Just passing on this job opportunity for another company. SQream is
looking for Haskellers located in Israel. They are working on high
performance solutions for large databases using Haskell. If you're
interested, please contact me off-list, and I'll pass your information
along.
Thanks,
I agree that the behavior is a bit confusing (Dan Burton just filed an
issue about this[1], I'm guessing this email is related).
I put up a wiki page[2] to hopefully explain the issue. Can you review
it and let me know if it helps? If so, I'll link to it from the
Haddocks.
Michael
[1]
, Michael Snoyman wrote:
I agree that the behavior is a bit confusing (Dan Burton just filed an
issue about this[1], I'm guessing this email is related).
I put up a wiki page[2] to hopefully explain the issue. Can you review
it and let me know if it helps? If so, I'll link to it from the
Haddocks
(Prettier formatting available at: https://gist.github.com/3761252)
Many of us use the OverloadedStrings language extension on a regular
basis. It provides the ability to keep the ease-of-use of string
literal syntax, while getting the performance and correctness
advantages of specialized
On Sun, Sep 23, 2012 at 10:51 AM, Heinrich Apfelmus
apfel...@quantentunnel.de wrote:
Michael Snoyman wrote:
(Prettier formatting available at: https://gist.github.com/3761252)
Many of us use the OverloadedStrings language extension on a regular
basis. It provides the ability to keep the ease
On Sun, Sep 23, 2012 at 5:51 PM, Chris Smith cdsm...@gmail.com wrote:
Michael Snoyman mich...@snoyman.com wrote:
That said, it would be great to come up with ways to mitigate the
downsides of unbounded polymorphism that you bring up. One idea I've
seen mentioned before is to modify
On Mon, Sep 24, 2012 at 2:53 PM, George Giorgidze giorgi...@gmail.com wrote:
Hi Michael,
Here at the University of Tübingen, I am co-supervising (together with
Jeroen Weijers) a student project implementing the OverloadedLists
extension for GHC. Achim Krause is the student who is working on
On Tue, Sep 25, 2012 at 6:21 PM, Heinrich Apfelmus
apfel...@quantentunnel.de wrote:
Michael Snoyman wrote:
Note that I wasn't necessarily advocating such a pragma. And a lot of
my XML code actually *does* use two IsString instances at the same
time, e.g.:
Element (img :: Name
Hi Johan,
I reported issue 1058 on Github:
https://github.com/haskell/cabal/issues/1058
Installing from separate folder with Custom build type fails
Thanks,
Michael
On Mon, Oct 8, 2012 at 6:39 PM, Johan Tibell johan.tib...@gmail.com wrote:
Hi,
I'll make a bugfix release for cabal-install
Hi all,
I think I have a misunderstanding of how forkProcess should be working.
Ultimately this relates to some bugs in the development version of keter,
but I've found some behavior in a simple test program which I wouldn't have
expected either, which may or may not be related.
With the program
On Mon, Oct 15, 2012 at 6:30 PM, Joey Hess j...@kitenet.net wrote:
Michael Snoyman wrote:
I think I have a misunderstanding of how forkProcess should be working.
Ultimately this relates to some bugs in the development version of
keter, but
I've found some behavior in a simple test program
The important issue here is that, when using =$, $=, and =$=, leftovers
will discarded. To see this more clearly, realize that the first line of
sink is equivalent to:
out1 - C.injectLeftovers CT.lines C.+ CL.head
So any leftovers from lines are lost once you move past that line. In order
to
Due to various technical reasons regarding the nature of conduit, you can't
currently catch exceptions within the Pipe monad. You have two options:
* Catch exceptions before `lift`ing.
* Catch exceptions thrown from the entire Pipe.
Since the exceptions are always originating in the underlying
It might have been caused by an overzealous security mechanism: I was only
consuming 1000 bytes of the header, which in some BrowserID cases may not
be enough. I've bumped that limit, can you try again?
On Sun, Nov 4, 2012 at 9:35 AM, Obscaenvs obscae...@gmail.com wrote:
Excerpt from source:
On Mon, Nov 5, 2012 at 9:51 PM, Michael Snoyman mich...@snoyman.com wrote:
On Nov 5, 2012 2:42 PM, Hiromi ISHII konn.ji...@gmail.com wrote:
Hi, there
On 2012/11/01, at 21:23, Michael Snoyman wrote:
Due to various technical reasons regarding the nature of conduit, you
can't
I don't think there's enough information in the snippet you've given to
determine what the problem is. And in general, it's a good idea to include
the actual error message from the compiler.
On Mon, Nov 12, 2012 at 5:02 AM, Alexander V Vershilov
alexander.vershi...@gmail.com wrote:
Hello.
I
I think the stm-conduit package[1] may be helpful for this use case. Each
time you get a new command, you can fork a thread and give it the TBMChan
to write to, and you can use sourceTBMChan to get a source to send to the
client.
Michael
[1] http://hackage.haskell.org/package/stm-conduit
On
On Tue, Nov 27, 2012 at 7:25 PM, Nicolas Trangez nico...@incubaid.comwrote:
Michael,
On Tue, 2012-11-27 at 17:14 +0200, Michael Snoyman wrote:
I think the stm-conduit package[1] may be helpful for this use case.
Each time you get a new command, you can fork a thread and give
On Fri, Dec 7, 2012 at 10:54 AM, Roman Cheplyaka r...@ro-che.info wrote:
* Michael Snoyman mich...@snoyman.com [2012-12-07 09:52:07+0200]
Let me bring up one other package: yaml (written by me). I think it's a
pretty good fit for the standard YAML packaging library, since it simply
reuses
On Fri, Dec 7, 2012 at 12:00 PM, Roman Cheplyaka r...@ro-che.info wrote:
* Michael Snoyman mich...@snoyman.com [2012-12-07 11:51:40+0200]
As for toYAML/toJSON, I guess most of the time they are different
anyway —
otherwise it's defeating the purpose of YAML to be more human-readable
To take this out of the academic realm and into the real-life realm: I've
actually done projects for companies which have corporate policies
disallowing the usage of any copyleft licenses in their toolset. My use
case was a web application, which would not have been affected by a GPL
library usage
On Thu, Dec 13, 2012 at 10:14 AM, Colin Adams colinpaulad...@gmail.comwrote:
On 13 December 2012 08:09, Michael Snoyman mich...@snoyman.com wrote:
To take this out of the academic realm and into the real-life realm: I've
actually done projects for companies which have corporate policies
On Thu, Dec 13, 2012 at 11:35 AM, Ramana Kumar ramana.ku...@cl.cam.ac.ukwrote:
On Thu, Dec 13, 2012 at 8:09 PM, Michael Snoyman mich...@snoyman.comwrote:
I also don't think that distributing programs is as small a market as you
think, and should also be something we support for commercial
I think that's a great idea. I just implemented this on PackDeps:
http://packdeps.haskellers.com/licenses
As with all features on that site, I'll be happy to deprecate it as soon as
Hackage incorporates the feature in the future.
Michael
On Thu, Dec 13, 2012 at 12:41 PM, Petr P
On Thu, Dec 13, 2012 at 3:53 PM, Vincent Hanquez t...@snarc.org wrote:
On 12/13/2012 12:51 PM, Michael Snoyman wrote:
I think that's a great idea. I just implemented this on PackDeps:
http://packdeps.haskellers.**com/licenseshttp://packdeps.haskellers.com/licenses
As with all features
felipe.le...@gmail.com wrote:
While you're at it, maybe whitelisting cpphs would be nice as well =).
On Thu, Dec 13, 2012 at 12:03 PM, Michael Snoyman mich...@snoyman.com
wrote:
On Thu, Dec 13, 2012 at 3:53 PM, Vincent Hanquez t...@snarc.org wrote:
On 12/13/2012 12:51 PM, Michael Snoyman
true ;).
[1] http://code.haskell.org/cpphs/README
On Thu, Dec 13, 2012 at 1:08 PM, Michael Snoyman mich...@snoyman.com
wrote:
Are you referring to:
http://code.haskell.org/cpphs/LICENCE-commercial
If the package is dual-licensed BSD3 and LGPL, maybe Malcolm could change
the cabal
On Thu, Dec 13, 2012 at 9:51 PM, Daniel Trstenjak
daniel.trsten...@gmail.com wrote:
On Thu, Dec 13, 2012 at 08:40:09PM +0200, Michael Snoyman wrote:
If you have a commercial use for cpphs, and feel the terms of the (L)GPL
are too onerous, you have the option of distributing unmodified
On Sat, Dec 15, 2012 at 4:25 PM, Malcolm Wallace malcolm.wall...@me.comwrote:
On 13 Dec 2012, at 10:41, Petr P wrote:
In particular, we can have a BSD package that depends on a LGPL package,
and this is fine for FOSS developers. But for a commercial developer, this
can be a serious issue
Sorry for the double-post, sent the first one from the wrong email address.
Hi Joachim,
I have not yet created a mailing list, but it should certainly be done.
There is also not yet a web site for Stackage, but there should be one in
the near future. At the very least, we'll need to host
On Thu, Dec 27, 2012 at 9:42 AM, Erik de Castro Lopo
mle...@mega-nerd.comwrote:
Pieter Laeremans wrote:
Hi,
The http-proxy package isn't compatible any longer with the latest
conduit. Since it is open source, I thought, I might as well try to adapt
it and submit a patch.
Have you
You could wrap chr with a call to spoon[1]. It's not the most elegant
solution, but it works.
[1]
http://hackage.haskell.org/packages/archive/spoon/0.3/doc/html/Control-Spoon.html#v:spoon
On Thu, Jan 3, 2013 at 9:50 AM, Myles C. Maxfield
myles.maxfi...@gmail.comwrote:
Hello,
I'm working on a
I've now created a Stackage mailing list:
https://groups.google.com/d/forum/stackage
I encourage anyone who's interested to join the list.
On Sat, Dec 22, 2012 at 11:50 AM, Joachim Breitner m...@joachim-breitner.de
wrote:
Dear Michael,
I’m wondering if I missed something, but is there a
I can point you to the line of code causing you trouble[1].
The problem is, as you already pointed out, that we don't have a
PersistValue constructor that fits this case correctly. I think the right
solution is to go ahead and add such a constructor for the next release.
I've opened a ticket on
Very nice to see, I'm happy to stand corrected here. We'll definitely get
some support for fixed into the next major release.
On Saturday, January 26, 2013, wrote:
According to the documentation, SQLite stores whatever you give it,
paying very little heed to the declared type. If you get
On Jan 27, 2013 8:46 AM, alexander.vershi...@gmail.com wrote:
Sat, Jan 26, 2013 at 12:21:02PM +0600, s9gf4...@gmail.com wrote
According to the documentation, SQLite stores whatever you give it,
paying very little heed to the declared type. If you get SQLite to
*compare* two numbers, it
On Thu, Jan 31, 2013 at 11:48 AM, Simon Marechal si...@banquise.net wrote:
Hello,
I have found the Conduit abstraction to be very well suited to a
set of
problems I am facing. I am however wondering how to implement
branching conduits, and even conduit pools.
I am
Firstly, what's the use case that you want to deal with lists? If it's for
efficiency, you'd probably be better off using a Vector instead.
But I think the inverse of `concat` is `singleton = Data.Conduit.List.map
return`, or `awaitForever $ yield . return`, using the list instance for
Monad.
On Fri, Feb 1, 2013 at 8:42 AM, Simon Marechal si...@banquise.net wrote:
On 02/01/2013 05:21 AM, Michael Snoyman wrote:
Firstly, what's the use case that you want to deal with lists? If it's
for efficiency, you'd probably be better off using a Vector instead.
That is a good point, and I
, Michael Snoyman wrote:
So you're saying you want to keep the same grouping that you had
originally? Or do you want to batch up a certain number of results?
There are lots of ways of approaching this problem, and the types don't
imply nearly enough to determine what you're hoping to achieve
On Mon, Feb 4, 2013 at 3:47 PM, Simon Marechal si...@banquise.net wrote:
On 03/02/2013 16:06, Felipe Almeida Lessa wrote:
I guess you could use the Flush datatype [1] depending on how your
data is generated.
Thank you for this suggestion. I tried to do exactly this by modifying
my bulk
appreciate any other insights regarding concerns, issues, or
oddities that I might encounter with the above.
Thanks,
Kevin
On Mon, 04 Feb 2013 02:25:11 -0700, Michael Snoyman mich...@snoyman.com
wrote:
I think this is probably the right approach. However, there's something
important to point
Hi Grant,
As you might expect from immutable data structures, there's no way to
update in place. The approach you'd take to XSLT: traverse the tree, check
each node, and output a new structure. I put together the following as an
example, but I could certainly imagine adding more combinators to
On Sun, Feb 10, 2013 at 8:51 PM, grant the...@hotmail.com wrote:
Michael Snoyman michael at snoyman.com writes:
Hi Michael,
Just one last thought. Does it make any sense that xml-conduit could be
rewritten as a lens instead of a cursor? Or leverage the lens package
somehow?
That's
On Sun, Feb 10, 2013 at 8:34 PM, Michael Snoyman mich...@snoyman.comwrote:
On Sun, Feb 10, 2013 at 8:51 PM, grant the...@hotmail.com wrote:
Michael Snoyman michael at snoyman.com writes:
Hi Michael,
Just one last thought. Does it make any sense that xml-conduit could be
rewritten
I'd like to announce the first release of a new tool called hackage-proxy.
The purpose is to provide a local proxy for a Hackage server, which somehow
modifies files in transport. The motivating case for this was getting more
meaningful error output from Stackage when compiling against GHC HEAD.
Quite a while back, Simon Hengel and I put together a proposal[1] for a new
feature in GHC. The basic idea is pretty simple: provide a new pragma that
could be used like so:
error :: String - a
errorLoc :: IO Location - String - a
{-# REWRITE_WITH_LOCATION error errorLoc #-}
Then all usages of
On Mon, Feb 25, 2013 at 11:13 AM, Simon Hengel s...@typeful.net wrote:
On Mon, Feb 25, 2013 at 09:57:04AM +0100, Joachim Breitner wrote:
Hi,
Am Montag, den 25.02.2013, 08:06 +0200 schrieb Michael Snoyman:
Quite a while back, Simon Hengel and I put together a proposal[1] for
a new
On Mon, Feb 25, 2013 at 2:15 PM, Alexander Kjeldaas
alexander.kjeld...@gmail.com wrote:
On Mon, Feb 25, 2013 at 12:46 PM, Simon Hengel s...@typeful.net wrote:
On Mon, Feb 25, 2013 at 10:40:29AM +0100, Twan van Laarhoven wrote:
I think there is no need to have a separate
On Mon, Feb 25, 2013 at 4:42 PM, Simon Peyton-Jones
simo...@microsoft.comwrote:
I’m afraid the rewrite-rule idea won’t work. RULES are applied during
optimisation, when tons of inlining has happened and the program has been
shaken around a lot. No reliable source location information is
is
implemented. But would this approach implement the shallow trace, or the
full stack trace?
Michael
Simon
** **
*From:* michael.snoy...@gmail.com [mailto:michael.snoy...@gmail.com] *On
Behalf Of *Michael Snoyman
*Sent:* 25 February 2013 18:19
*To:* Simon Peyton-Jones
*Cc
On Fri, Mar 1, 2013 at 4:18 AM, Joey Adams joeyadams3.14...@gmail.comwrote:
Can I transform a conduit so some values are passed through unchanged, but
others go through the conduit? For example:
right :: Conduit i m o - Conduit (Either x i) m (Either x o)
This is named after the
On Sun, Mar 3, 2013 at 6:07 PM, Ertugrul Söylemez e...@ertes.de wrote:
Arie Peterson ar...@xs4all.nl wrote:
Would anyone have a problem with a deprecation of
MonadCatchIO-transformers, and a failure to update it to work with a
base without 'block' and 'unblock'?
Yes. This is a
Wow, I hadn't realized that someone had implemented resumable sinks... and
now resumable conduits too! Very interesting.
I'm not sure if I entirely understand your use case, but in general it
should be possible to have multiple Conduits running one after the other.
Here's an example of restarting
On Wed, Mar 6, 2013 at 5:48 AM, Joey Adams joeyadams3.14...@gmail.comwrote:
On Tue, Mar 5, 2013 at 9:24 AM, Michael Snoyman mich...@snoyman.comwrote:
...
I'm not sure if I entirely understand your use case, but in general it
should be possible to have multiple Conduits running one after
Hi all,
I'm turning to the community for some help understanding some benchmark
results[1]. I was curious to see how the new io-streams would work with
conduit, as it looks like a far saner low-level approach than Handles. In
fact, the API is so simple that the entire wrapper is just a few lines
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