Re: [Haskell-cafe] process-conduit appears to hang on windows
Michael Snoyman snoyman.com> writes: > > I'm not sure what the original problems were that caused it to hang on > Windows, so I can't really speak to that part of the code. The > conduit-specific stuff looks good though. > > Michael > Thanks for taking a look. I guess windows handling of processes is a lot different than linux. Grant ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Connection to database
Hi Brandon:
I did read the README.markdown.
I run the Test.hs that is set by default and the Test.hs (my Test), with
the command I got in README:
julita@yulys:~/hdbc-mysql$ ghc -idist/build -L/opt/local/lib/mysql5/mysql
-lmysqlclient --make Test
I got the same error message related to "Could not find module
`Database.HDBC.MySQL.RTS':"
I "googled" it, but I can not find something about the header or dev I need
to run this successfully.
(myTest):
__-
import Control.Monad
import Database.HDBC
import Database.HDBC.MySQL
main = do conn <- connectMySQL defaultMySQLConnectInfo {
mysqlHost = "127.0.0.1",
mysqlUser = "root",
mysqlPassword = "123456"
}
rows <- quickQuery' conn "show databases" []
forM_ rows $ \row -> putStrLn $ show row
__-
On Mon, Apr 16, 2012 at 8:27 PM, Brandon Allbery wrote:
> On Mon, Apr 16, 2012 at 18:14, yrazes wrote:
>
>> 3.
>> julita@yulys:~/hdbc-mysql$ ls
>> ChangeLog Database README.markdown Test.hs
>> COPYINGHDBC-mysql.cabal Setup.lhstestsrc
>> julita@yulys:~/hdbc-mysql$ runhaskell Test.hs
>>
>> but I got this error message:
>>
>> Database/HDBC/MySQL.hs:65:8:
>> Could not find module `Database.HDBC.MySQL.RTS':
>> Use -v to see a list of the files searched for.
>>
>>
>> * I tried to do something about the Setup.lhs, but I could not do
>> anything at all.
>>
>
> Did you happen to look at the README, or is that our job?
>
> --
> brandon s allbery allber...@gmail.com
> wandering unix systems administrator (available) (412) 475-9364 vm/sms
>
>
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[Haskell-cafe] TLS support for haskell-xmpp
Dmitry & others, Attached is a diff implementing TLS support for haskell-xmpp, and correcting a build failure. The support is rough but it seems to work so far. -- John diff -durN -x '*~' -x Test.hs orig/haskell-xmpp-1.0/haskell-xmpp.cabal haskell-xmpp-1.0/haskell-xmpp.cabal --- orig/haskell-xmpp-1.0/haskell-xmpp.cabal 2011-01-15 16:50:14.0 -0600 +++ haskell-xmpp-1.0/haskell-xmpp.cabal 2012-04-16 21:03:49.125224872 -0500 @@ -32,7 +32,7 @@ library Hs-Source-Dirs: ./src - Build-Depends: base > 3 && <=5, random, pretty, array, HaXml >= 1.20.2, mtl >= 1.0, network, html, polyparse, regex-compat, stm, utf8-string + Build-Depends: base > 3 && <=5, random, pretty, array, HaXml >= 1.20.2 && < 1.21, mtl >= 1.0, network, html, polyparse, regex-compat, stm, utf8-string, gnutls, bytestring Exposed-modules: Network.XMPP , Network.XMPP.Sasl , Network.XMPP.Core diff -durN -x '*~' -x Test.hs orig/haskell-xmpp-1.0/src/Network/XMPP/Concurrent.hs haskell-xmpp-1.0/src/Network/XMPP/Concurrent.hs --- orig/haskell-xmpp-1.0/src/Network/XMPP/Concurrent.hs 2011-01-15 16:50:14.0 -0600 +++ haskell-xmpp-1.0/src/Network/XMPP/Concurrent.hs 2012-04-16 21:46:04.405285127 -0500 @@ -36,6 +36,8 @@ import Network.XMPP.XEP.Version import Network.XMPP.IM.Presence import Network.XMPP.Utils +import qualified Network.Protocol.TLS.GNU as TLS +import qualified Data.ByteString.Lazy.Char8 as BC8 import System.IO @@ -54,7 +56,7 @@ liftIO $ forkIO $ runReaderT a (Thread in' out') s <- get liftIO $ forkIO $ loopWrite s out' - liftIO $ forkIO $ connPersist (handle s) + liftIO $ forkIO $ connPersist (transport s) loopRead in' where loopRead in' = loop $ @@ -105,10 +107,20 @@ else do waitFor f -connPersist :: Handle -> IO () -connPersist h = do +connPersist :: Transport -> IO () +connPersist (HandleTransport h) = do hPutStr h " " putStrLn "" threadDelay 3000 - connPersist h - + connPersist (HandleTransport h) +connPersist (TLSTransport t) = do + r <- TLS.runTLS t $ do +TLS.putBytes (BC8.pack " ") + case r of +Left x -> fail (show x) +Right _ -> return () + putStrLn "" + threadDelay 3000 + connPersist (TLSTransport t) + + diff -durN -x '*~' -x Test.hs orig/haskell-xmpp-1.0/src/Network/XMPP/Core.hs haskell-xmpp-1.0/src/Network/XMPP/Core.hs --- orig/haskell-xmpp-1.0/src/Network/XMPP/Core.hs 2011-01-15 16:50:14.0 -0600 +++ haskell-xmpp-1.0/src/Network/XMPP/Core.hs 2012-04-16 21:33:28.101267152 -0500 @@ -26,6 +26,9 @@ import Network.XMPP.JID import Network.XMPP.IQ import Network.XMPP.Utils +import Text.XML.HaXml.Xtract.Parse (xtract) +import qualified Network.Protocol.TLS.GNU as TLS + -- | Open connection to specified server and return `Stream' coming from it initiateStream :: Handle @@ -50,7 +53,48 @@ debug "Stream started" --debug $ "Observing: " ++ render (P.content m) - m <- xtractM "/stream:features/mechanisms/mechanism/-" + + -- First, we read stream:features + sf_ <- xtractM "/stream:features" + let sf = case sf_ of + [] -> error "Did not get stream:features" + [x] -> x + x -> error "Got many stream:features" + + -- Now, we look for starttls. + newsf <- case xtract id "/stream:features/starttls" sf of + [] -> do debug "Did not see starttls in features" +return sf + x -> do debug $ "Saw starttls: " ++ show x + out $ toContent $ ptag "starttls" + [xmlns "urn:ietf:params:xml:ns:xmpp-tls"] + [] + nm <- nextM + case xtract id "/proceed" nm of + [] -> fail "Did not get proceed after starttls" + _ -> return () + debug $ "Starting TLS" + session <- liftIO $ TLS.runClient (TLS.handleTransport h) $ do + TLS.setPriority [TLS.X509] + TLS.setCredentials =<< TLS.certificateCredentials + TLS.handshake + TLS.getSession + case session of + Left x -> fail (show x) + Right x -> do + debug $ "Got TLS session" + resetStreamTLS h x + debug $ "Stream reset" + out $ toContent $ stream Client server + startM + tlssf_ <- xtractM "/stream:features" + debug $ "Got new features" + return $ case tlssf_ of + [] -> error "Did not get stream:features" + [x] -> x + x -> error "Got many stream:features" + + let m = xtract id "/stream:features/mechanisms/mechanism/-" newsf let mechs =
Re: [Haskell-cafe] Connection to database
On Mon, Apr 16, 2012 at 18:14, yrazes wrote: > 3. > julita@yulys:~/hdbc-mysql$ ls > ChangeLog Database README.markdown Test.hs > COPYINGHDBC-mysql.cabal Setup.lhstestsrc > julita@yulys:~/hdbc-mysql$ runhaskell Test.hs > > but I got this error message: > > Database/HDBC/MySQL.hs:65:8: > Could not find module `Database.HDBC.MySQL.RTS': > Use -v to see a list of the files searched for. > > > * I tried to do something about the Setup.lhs, but I could not do anything > at all. > Did you happen to look at the README, or is that our job? -- brandon s allbery allber...@gmail.com wandering unix systems administrator (available) (412) 475-9364 vm/sms ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] CFP SCAM 2012 - submissions due May 4 (abstracts: April 29)
** * 12th IEEE International Working Conference on Source * *Code Analysis and Manipulation * *SCAM 2012 * * http://scam2012.cs.usask.ca/ * ** * September 23 - 24, 2012* * Riva Del Garda, Trento, Italy * ** * *** CALL FOR PAPERS **** ** OVERVIEW/SCOPE ** The aim of SCAM is to bring together researchers and practitioners working on theory, techniques and applications, which concern analysis and/or manipulation of the source code of computer systems. While much attention in the wider software engineering community is properly directed towards other aspects of systems development and evolution, such as specification, design and requirements engineering, it is the source code that contains the only precise description of the behavior of the system. The analysis and manipulation of source code thus remains a pressing concern. COVERED TOPICS AND PAPER FORMATS We welcome submission of *full papers* that describe original and significant work in the field of source code analysis and manipulation. SCAM explicitly solicits results from any theoretical or technological domain that can be applied to the following or similar topics: - program transformation - abstract interpretation - program slicing - source level software metrics - decompilation - source level testing and verification - source level optimization - program comprehension SCAM also welcomes *short tool papers* that introduce tools for source code analysis and manipulation. Tool papers should describe a concrete source code analysis or manipulation tool that is available for download and general use and can be run and demonstrated at the conference. Submitted papers should not be longer than 10 pages (6 pages for tool papers). All papers submitted should follow IEEE Computer Society Press Proceedings Author Guidelines. The papers should be submitted electronically in PDF form via the conference web site.Submitted papers must not have been previously published or concurrently submitted for consideration elsewhere. In addition to the main and tool tracks, SCAM 2012 solicits 2-page *Frontiers position papers* describing a significantly new idea in the theory, technology, application or engineering of source code analysis and manipulation systems. Frontiers authors will join in an open panel discussion of the frontiers of the area at the conference. IMPORTANT DATES *** Abstract submission (full and frontiers papers): April 29, 2012 Papers submission (full and frontiers papers): May 04, 2012 Tool papers submission: May 31, 2012 Notification full and frontier papers: June 16, 2012 Notification tool papers: June 21, 2012 Camera ready submission: July 06, 2012 Working Conference: September 23 - 24, 2012 PROCEEDINGS *** All accepted papers will appear in the proceedings which will be published by the IEEE Computer Society Press. Best papers from SCAM 2012 will be considered for revision, extension, and publication in a special issue of the Journal of Software: Evolution and Process. ORGANIZING COMMITTEE *General Chair* James R. Cordy, Queen's University, Canada *Program Co-Chairs* Mariano Ceccato, Fondazione Bruno Kessler, Italy Zheng Li, Beijing University of Chemical Technology, China *Tool Chair* Chanchal K. Roy, University of Saskatchewan, Canada *Local Arangements Chair* Alessandro Marchetto, Fondazione Bruno Kessler, Italy *Finance Chair* Dave Binkley, Loyola University Maryland, USA *Publications Chair* Dawn Lawrie, Loyola University Maryland, USA *Publicity Chair* Sonia Haiduc, Wayne State University, Detroit, USA *Web chair* Minhaz Fahim Zibran, University of Saskatchewan, Canada ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Connection to database
Hi guys, I was trying to get a connection MySql Haskell and I followed this steps: 1. install cabal-install install libghc-haskelldb-hdbc-dev (headers del haskell y hdbc) install libmysqlclient-dev (headers del mysqlclient) 2. git clone git://github.com/bos/hdbc-mysql.git 3. julita@yulys:~/hdbc-mysql$ ls ChangeLog Database README.markdown Test.hs COPYINGHDBC-mysql.cabal Setup.lhstestsrc julita@yulys:~/hdbc-mysql$ runhaskell Test.hs but I got this error message: Database/HDBC/MySQL.hs:65:8: Could not find module `Database.HDBC.MySQL.RTS': Use -v to see a list of the files searched for. * I tried to do something about the Setup.lhs, but I could not do anything at all. If somebody can help me, I will appreciate it. Best regards, Julita ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] ANNOUNCE: pipes-core 0.1.0
Paolo Capriotti wrote: > I'm pleased to announce the release of version 0.1.0 of pipes-core, a > library for efficient, safe and compositional IO, similar in scope to > iteratee and conduits. > > http://hackage.haskell.org/package/pipes-core I like your pipes package. This is very similar to what Mario Blažević wrote about his Coroutines in the Monad.Reader (can't remember which issue; great article, BTW, many thanks Mario for making me understand the iteratee business (and also generators) for the first time). Your pipes-core looks even simpler to use, maybe due to avoiding to make a type distinction between consumer/producer/pipe (except the natural one i.e. through the input/output types), even though the parameterization by a functor (as in Monad.Coroutine) has its own beauty. Two issues: (1) What is the reason for the asymmetry in type Producer b m = Pipe () b m type Consumer a m = Pipe a Void m i.e. why does Producer use () for the input? I would expect it to use Void, like Consumer does for its output. Calling await in a Producer resulting in an immediate 'return ()' as you say is allowed (in the tutorial) strikes me as not very useful. If the idea is simply to flag nonsense like consumer >+> producer with a type error, then it might be a better idea to introduce two different Void types: data NoOutput data NoInput type Producer b m = Pipe NoInput b m type Consumer a m = Pipe a NoOutput m type Pipeline m = Pipe NoInput NoOutput m (and isn't this nicely self-explaining?) (2) The $$ operator is poorly named. I would intuitively expect an operator that looks so similar to the standard $ to have the same direction of data flow (i.e. right to left, like function application and composition) but your is left to right. You could use e.g. >$> instead, which has the additional advantage of allowing a symmetric variant for the other direction i.e. <$<. Cheers Ben ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Announce: keera-three-balance-checker-0.0.1
On 04/16/2012 06:22 PM, Ivan Perez wrote: PS. Why Announce instead of ANNOUNCE? Because this is not a big deal, it's just a toy. I like the feel of this package, there should be more of this. Good to see that Haskell "floats the boat" for both the hackers and academia. -- Morten ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Announce: keera-three-balance-checker-0.0.1
Hi everyone, I wrote a small app to keep my Three Mobile PayG balance always under control. I've been using it for a while and it seems to work fine. It's just an icon docked in the system bar that shows the current balance when you move the mouse over it. If you don't know what Three Mobile is, then you don't need this. If you use a different operator and would find this kind of app handy, let me know and we can probably find a way to make it work for you. Code, instructions and screenshots: https://github.com/ivanperez-keera/keera-three-balance-checker My cabal repo: remote-repo: ivanperez-keera:http://ivanperez-keera.github.com/packages/archive If any of you find it useful, I'd be glad to know. If you find any bugs, drop me a line and we'll find out how to fix them together. Cheers, Ivan. PS. Why Announce instead of ANNOUNCE? Because this is not a big deal, it's just a toy. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Building cabal-install for new ghc build
Nice tip! On Mon, Apr 16, 2012 at 4:42 PM, Daniël de Kok wrote: > On Apr 16, 2012, at 5:28 AM, Lyndon Maydwell wrote: >> I've found that I had to make several modifications to the >> bootstrap.sh and cabal-install.cabal files in order to get this to >> work. I am wondering how the maintainers of the Haskell-platform, etc >> are dealing with these issues. > > I usually get a recent cabal-install from the Cabal Darcs repository, which > normally builds without modifications to bootstrap.sh on a recent GHC: > > darcs get http://darcs.haskell.org/cabal/ > > Or if you want a particular branch (such as 1.14): > > darcs get http://darcs.haskell.org/cabal-branches/cabal-1.14/ > > Of course, you need Darcs to do this, but binary builds of Darcs are provided > on the Darcs website. > > -- Daniël ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Haskell Hackathon in Munich
Dear all, the Munich Haskell Meeting is glad to announce a local one day Hackathon in Munich. It will take place the 12th of May 2012 from 10am to 6pm. Please checkout the details at: http://www.haskell-munich.de/dates Cordially yours, Heinrich -- -- hoerde...@funktional.info www.funktional.info -- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Building cabal-install for new ghc build
On Apr 16, 2012, at 5:28 AM, Lyndon Maydwell wrote: > I've found that I had to make several modifications to the > bootstrap.sh and cabal-install.cabal files in order to get this to > work. I am wondering how the maintainers of the Haskell-platform, etc > are dealing with these issues. I usually get a recent cabal-install from the Cabal Darcs repository, which normally builds without modifications to bootstrap.sh on a recent GHC: darcs get http://darcs.haskell.org/cabal/ Or if you want a particular branch (such as 1.14): darcs get http://darcs.haskell.org/cabal-branches/cabal-1.14/ Of course, you need Darcs to do this, but binary builds of Darcs are provided on the Darcs website. -- Daniël ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] ANNOUNCE : Juicy.Pixels 1.2.1
Hello everyone, I'm pleased to announce you the new version of Juicy.Pixels, the 1.2.1, no new major features, here's the changelog : - Removed dependency on the array package. - Updated dependency list to handle latest mtl version. - Helper functions to save files without thinking about it. - Some code snippets in the API documentations GitHub : https://github.com/Twinside/Juicy.Pixels Hackage : http://hackage.haskell.org/package/JuicyPixels Regards Vincent Berthoux ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
