Re: [Haskell-cafe] (+) on two lists ?

2013-02-15 Thread brandon s allbery kf8nh
on; on the other, it *does* help to catch thinkos like the above. -- brandon s allbery kf8nh Sent with Sparrow (http://www.sparrowmailapp.com/?sig) On Friday, February 15, 2013 at 2:33 AM, sheng chen wrote: > Hi, > > I was puzzled by the following little program. > > sum' [

Re: [Haskell-cafe] performance question

2013-02-14 Thread brandon s allbery kf8nh
It's worth remembering that the main gain from lex/yacc had originally to do with making the generated programs fit into 64K address space on a PDP11 more than with any direct performance efficiency. -- brandon s allbery kf8nh Sent with Sparrow (http://www.sparrowmailapp.com/?sig)

Re: [Haskell-cafe] 64-bit vs 32-bit haskell platform on Mac: misleading notice on Platform website?

2012-10-08 Thread brandon s allbery kf8nh
though. -- brandon s allbery kf8nh sine nomine associates allber...@gmail.com ballb...@sinenomine.net unix/linux, openafs, kerberos, infrastructure http://sinenomine.net Sent with Sparrow (http://www.sparrowmailapp.co

Re: [Haskell-cafe] Those damned parentheses

2011-05-07 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 5/7/11 15:10 , Eitan Goldshtrom wrote: > I get the error "Couldn't match expected type `[Char]' with actual type `a0 > -> c0'". The only way it seems to work is > f p = putStrLn $ (show (Main.id p)) ++ " - message received" Interestingly enough, yo

Re: [Haskell-cafe] ANN: Leksah 0.10.0

2011-04-26 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 4/26/11 09:15 , Daniel Fischer wrote: > On Tuesday 26 April 2011 02:00:32, jutaro wrote: >> Well, it is a bit more intricate to invert the sides. After >> * swapping LeftP and RightP in Edit Prefs -> Initial Pane positions >> * Close all panes and p

Re: [Haskell-cafe] DSL for task dependencies

2011-03-23 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 3/18/11 00:43 , Conal Elliott wrote: > Speaking of which, for a while now I've been interested in designs of > make-like systems that have precise & simple (denotational) semantics with > pleasant properties. What Peter Landin called "denotative" (a

Re: [Haskell-cafe] X11 package bug: XClientMessageEvent long data

2011-03-17 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 3/16/11 00:10 , Dylan Alex Simon wrote: > Does anyone know the current maintenance status of the X11 package? I emailed > Spencer Janssen a number of months ago and never heard back. So, I'll put > this here in case any one else runs into it or ca

Re: [Haskell-cafe] writing to a fifo when the reader stops reading

2011-03-13 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 3/13/11 03:16 , bri...@aracnet.com wrote: > ghc: fdWriteBuf: resource vanished (Broken pipe) > > which make sense, sort of. I write a value, let's say 10, and the > reader reads it. It's the last value so it "closes" the fifo. > > Now there's no

Re: [Haskell-cafe] groupBy huh?

2011-03-03 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 3/3/11 20:09 , Jacek Generowicz wrote: >> 1 < 2 ok, same group >> 1 < 3 dito >> 1 < 2 dito >> Thus you get [[1,2,3,2]] > > OK, that works, but it seems like a strange choice ... Stability is often valued in functions like this: the order of eleme

Re: [Haskell-cafe] upgrading mtl1 to mtl2

2011-02-17 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 2/16/11 00:51 , Evan Laforge wrote: > On Tue, Feb 15, 2011 at 7:58 PM, Ivan Lazar Miljenovic > wrote: >> On 16 February 2011 14:46, Evan Laforge wrote: >>> I just got started on this because packages are starting to use mtl2. >>> I had hoped it wo

Re: [Haskell-cafe] On hGetContents semi-closenesscloseness

2011-02-15 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 (I'm probably glossing over important stuff and getting some details wrong, as usual, but I hope it's good enough to give some idea of what's going on.) On 2/15/11 11:57 , Rafael Cunha de Almeida wrote: > What state is that? It seems to be something r

Re: [Haskell-cafe] Is Show special? Of course not but...

2011-02-12 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 2/11/11 14:20 , Cristiano Paris wrote: > God! It seems like I'm reading the small-character lines of a contract :) Wait until you encounter the equivalent of rules-lawyering in the type system :) - -- brandon s. allbery [linux,solaris,freebsd

Re: [Haskell-cafe] Proving correctness

2011-02-12 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 2/11/11 06:06 , C K Kashyap wrote: > I've come across this a few times - "In Haskell, once can prove the > correctness of the code" - Is this true? Only up to a point. While most of the responses so far focus on the question from one direction, th

Re: [Haskell-cafe] coding style vs. foreign interfaces

2011-02-07 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 2/7/11 12:36 , Donn Cave wrote: > I don't know the OpenGL example, but I gather you're talking about > an API that's different in a practical way, not just a thin layer > with the names spelled differently. In that case, assuming that > it really i

Re: [Haskell-cafe] Problems with iteratees

2011-02-03 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 2/3/11 19:16 , Brandon S Allbery KF8NH wrote: > POSIX FIFOs and GHC's nonblocking file descriptors implementation don't play > well together; you should launch the writer end first and let it block More specifically, I think what&

Re: [Haskell-cafe] Problems with iteratees

2011-02-03 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 2/2/11 20:06 , wren ng thornton wrote: > When I put this all together, the process is killed with: > control message: Just (Err "endOfInput") POSIX FIFOs and GHC's nonblocking file descriptors implementation don't play well together; you should

Re: [Haskell-cafe] Loading bitmap with xlib

2011-02-02 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 2/2/11 04:03 , Francesco Mazzoli wrote: > Conrad Parker metadecks.org> writes: >> On 31 January 2011 21:40, Francesco Mazzoli mazzo.li> wrote: >>> Francesco Mazzoli mazzo.li> writes: >>> At the end I gave up and I wrote the function myself: >>> h

Re: [Haskell-cafe] Inheritance and Wrappers

2011-01-31 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/31/11 15:24 , Daniel Fischer wrote: > want. You could then also enable OverlappingInstances, which would allow > you to write other instances, but that extension is widely regarded as > dangerous (have to confess, I forgot what the dangers were,

Re: [Haskell-cafe] A few days to go before the old server goes down

2011-01-30 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/31/11 00:04 , Antoine Latter wrote: > On Sun, Jan 30, 2011 at 5:38 PM, Aaron Gray > wrote: >> On 27 January 2011 22:42, Henk-Jan van Tuyl wrote: >>> Only four days until the old Haskell.org server disappears; I found the >>> following missing:

Re: [Haskell-cafe] Automatically move cursor focus in split window in haskell-mode in emacs on load (C-c C-l) command?

2011-01-30 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/30/11 12:13 , JETkoten wrote: >> ;Default behaviour is to always >> jump to the GHCi window. >> ;Jump back automatically unless errors. >>

Re: [Haskell-cafe] Code from Haskell School of Expression hanging.

2011-01-29 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/29/11 21:27 , michael rice wrote: > I'm using the OpenGL stuff (GLFW). Same set of problems? None of the lower level libraries support multithreading. If any of those libraries use FFI bindings that run in a bound thread, they'll fail in the thr

Re: [Haskell-cafe] Haskell for children? Any experience?

2011-01-29 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/30/11 00:24 , Brandon S Allbery KF8NH wrote: > Isn't there already a body of evidence that people who've never been exposed > to procedural languages find functional programming to be much more natural? Also worth pointing out

Re: [Haskell-cafe] Haskell for children? Any experience?

2011-01-29 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/27/11 10:28 , aditya siram wrote: > Haskell's immutability is good for mathematics but doing anything else > takes a great deal of up-front patience and perseverance, two very > rare qualities in that demographic if my own childhood is any > indic

Re: [Haskell-cafe] Haskell for children? Any experience?

2011-01-29 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/27/11 10:26 , Stephen Tetley wrote: > John Peterson had some nice work using Haskore and Fran for elementary > teaching on the old Haskell.org website. Google's cache says the old > URL was here but its now vanished: > > www.haskell.org/edsl/camp

Re: [Haskell-cafe] Problem about exception.

2011-01-26 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/26/11 22:13 , Magicloud Magiclouds wrote: > Yes, the problem is that Exception cannot hold anything in it. Things > like Either might work. I am thinking how to make it work with > StateT That wasn't my point, but sure it can. Go take a look

Re: [Haskell-cafe] Problem about exception.

2011-01-26 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/26/11 22:02 , Magicloud Magiclouds wrote: > Sorry, in last mail, I meant, in really wrong situation, there might > be other tens of unexpected command, I'd like to wrap them in one > exception, other than making tens of exceptions. I'm not sure y

Re: [Haskell-cafe] Problem about exception.

2011-01-26 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/26/11 22:00 , Magicloud Magiclouds wrote: > This is one way. But so the outer function could not know what > happened in "really wrong" situation. How so? (1) fromException lets you test it: if (fromException e :: Maybe ControlException) return

Re: [Haskell-cafe] Problem about exception.

2011-01-26 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/26/11 21:10 , Magicloud Magiclouds wrote: > Hi, > Consider such a case: I'm making a client program. There is a > process, client and server exchange some information in a strict > order. So I do (persudo code): > exchange = do > sendHello >

Re: [Haskell-cafe] source line annotations

2011-01-21 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/19/11 17:43 , Evan Laforge wrote: > My preprocessor works well, but occasionally I do have to go in and > fix yet another odd corner that came up. Initially I thought I would > only simplistically replace tokens and avoid using a full syntax > pa

Re: [Haskell-cafe] Browser Game Engine

2011-01-20 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/17/11 12:16 , Jeremy Shaw wrote: > The must be at least a million flash games, so clearly it can be used for > that. If you create a flash game, nobody gets excited. But if you create an > html5 based game, then people still get excited about that

Re: [Haskell-cafe] Guy Steele's Praise For Haskell @ Strange Loop Keynote

2011-01-16 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/15/11 18:15 , Warren Henning wrote: > MATLAB, LabVIEW, Fortran, Java, C, and non-OO C++/random subsets of > C++ rule scientific programming. Unit testing is rare and sporadic. In > dragging scientists halfway to something new, the exotic, powerful

Re: [Haskell-cafe] Generalizing catMaybes

2011-01-08 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/8/11 07:11 , Conor McBride wrote: > On 8 Jan 2011, at 11:14, Henning Thielemann wrote: >> For me, the solutions of Dave Menendez make most sense: Generalize Maybe >> to Foldable and List to MonadPlus. > > What has it to do with monads? There's no

Re: [Haskell-cafe] Generalizing catMaybes

2011-01-07 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/7/11 21:56 , Tony Morris wrote: > I am wondering if it possible to generalise catMaybes: > > (Something f, SomethingElse t) => t (f a) -> t a > > I have being doing some gymnastics with Traversable and Foldable and a > couple of other things fr

Re: [Haskell-cafe] Ur vs Haskell

2011-01-07 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/7/11 14:14 , Alexander Kjeldaas wrote: > Ur looks very impressive, so the natural question I'm asking myself is: How > does it stack up against haskell frameworks, and why can't Ur be implemented > in Haskell? > > I'm thinking mainly of the sa

Re: [Haskell-cafe] Building lambdabot

2011-01-07 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/6/11 02:27 , Joe Bruce wrote: > Now I'm stuck on readline again [lambdabot build step 28 of 81]: > "/Users/joe/.cabal/lib/readline-1.0.1.0/ghc-6.12.3/HSreadline-1.0.1.0.o: > unknown symbol `_rl_basic_quote_characters'" This sounds like the cabal

Re: [Haskell-cafe] Freeglut

2011-01-07 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/3/11 18:21 , Eric wrote: > I would like to use freeglut instead of GLUT for my Haskell OpenGL program, > but when I place the freeglut dll in the program's directory and try to run > the program on Windows XP, I get the following error message: >

Re: [Haskell-cafe] How about Haskell Golf just like vimgolf.com

2011-01-02 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 1/2/11 02:48 , C K Kashyap wrote: > I found this site called http://vimgolf.com/ ... the idea there is > that people come up with challenges and try to come up with the least > number of keystrokes to get it done. Code golf in any language is gener

Re: [Haskell-cafe] tplot and splot - analyst's swiss army knifes for visualizing log files

2011-01-01 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 still catching up on inbox... On 12/17/10 04:08 , Eugene Kirpichov wrote: > Just in case, I'm also attaching a PDF of the current version to this > email, but visiting the link is preferable, since I'll be updating the > contents. So lessee, I need t

Re: [Haskell-cafe] Incorrectly inferring type [t]

2010-12-29 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/29/10 22:05 , william murphy wrote: > I've spent a lot of time trying to write a version of concat, which > concatenates lists of any "depth": > So: > concat'' [[[1,2],[3,4]],[[5]]] would return: [1,2,3,4,5] You can't do that, at l

Re: [Haskell-cafe] Behaviour of System.Directory.getModificationTime

2010-12-22 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/17/10 06:22 , Arnaud Bailly wrote: > Thanks for your answers. I am a little bit surprised, I thought > timestamps were on the milliseconds scale. POSIX timestamps are seconds. - -- brandon s. allbery [linux,solaris,freebsd,perl] allb.

Re: [Haskell-cafe] $ do?

2010-12-22 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/15/10 02:36 , Roman Cheplyaka wrote: > Regarding the rationale, I'm not so sure and I'd like to hear an > explanation from someone competent. But I assume it has something > to do with the fact that if you supply a 'do' argument, you cannot > sup

Re: [Haskell-cafe] IO, sequence, lazyness, takeWhile

2010-12-19 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/13/10 09:15 , Jacek Generowicz wrote: > untilQuit' = (fmap (takeWhile (/= "quit"))) (sequence $ map (>>= report) > (repeat getLine)) > > -- The latter version shows the report, but it doesn't stop at the > -- appropriate place, so I'm guessing t

Re: [Haskell-cafe] haskell2010 and state question.

2010-12-11 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/9/10 20:40 , Magicloud Magiclouds wrote: > First to notice that. So standard-wise, there is no way to do state thing? There seems to be a lot of confusion as to what the language standard covers. It is a bare minimum; practical libraries are no

Re: [Haskell-cafe] dot-ghci files

2010-12-11 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/9/10 02:01 , Tony Morris wrote: > I teach haskell quite a lot. I recommend using .ghci files in projects. > Today I received complaints about the fact that ghci will reject .ghci > if it is group-writeable. I didn't offer an opinion on the matter

Re: [Haskell-cafe] haskell-2010 binary IO

2010-12-11 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/10/10 02:14 , Permjacov Evgeniy wrote: > Does haskell 2010 include binary IO? If no, what was the reason? That's not really the language report's job. You're looking for the Haskell Platform. - -- brandon s. allbery [linux,solaris,freebsd

Re: [Haskell-cafe] [Haskell] ANNOUNCE: genprog-0.1

2010-12-11 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/8/10 12:57 , Andrew Coppin wrote: > inherited a knackered L-gulonolactone oxidase enzyme. L-gluconolactone oxidase maybe? (pedants-R-us...) - -- brandon s. allbery [linux,solaris,freebsd,perl] allb...@kf8nh.com system administrator

Re: [Haskell-cafe] Offer to mirror Hackage

2010-12-11 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/9/10 16:04 , Richard O'Keefe wrote: > I thought "X is a mirror of Y" meant X would be a read-only replica of Y, > with some sort of protocol between X and Y to keep X up to date. > As long as the material from Y replicated at X is *supposed* to b

Re: [Haskell-cafe] GHC 7.0.1 developer challenges

2010-12-08 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/8/10 02:17 , Anders Kaseorg wrote: > On Sat, 2010-12-04 at 13:42 -0500, Brandon S Allbery KF8NH wrote: >> We went over this some time back; the GHC runtime is wrong here, it >> should only disable flags when running with geteuid(

Re: [Haskell-cafe] Offer to mirror Hackage

2010-12-07 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/7/10 18:53 , Darrin Chandler wrote: > On Tue, Dec 07, 2010 at 11:04:04PM +0100, Ketil Malde wrote: >> It's not obvious to me that adding a mirror makes the infrastructure >> more more insecure. Any particular concerns? (I hope I qualify as >> n

Re: [Haskell-cafe] Conditional compilation for different versions of GHC?

2010-12-07 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/7/10 06:00 , Henning Thielemann wrote: > Brandon S Allbery KF8NH wrote: >> Since the base package is (with good reason) part of the compiler, anyone >> smart enough to get that to work is smart enough to edit the cabal file. >

Re: [Haskell-cafe] Question: mime-mail and base64 encoding

2010-12-07 Thread Brandon S Allbery KF8NH
ents from the recipients of the above" (me, in alt.sysadmin.recovery. I'm not sure how someone converted "Brandon S Allbery KF8NH" into "bf8" but that's the universal attribution.) - -- brandon s. allbery [linux,solaris,freebsd,perl] allb...@kf8

Re: [Haskell-cafe] Offer to mirror Hackage

2010-12-07 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/7/10 08:07 , Ketil Malde wrote: > Dan Knapp writes: >> I agree that signed packages are a good idea. We should move with all >> haste to implement them. But I'm not sure we want to hold up >> everything else while we wait for that. > > IMO,

Re: [Haskell-cafe] Storables and Ptrs

2010-12-06 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/6/10 13:22 , Antoine Latter wrote: > On Mon, Dec 6, 2010 at 12:03 PM, Tyler Pirtle wrote: >> On Sun, Dec 5, 2010 at 9:46 PM, Antoine Latter wrote: >>> On Sun, Dec 5, 2010 at 10:45 PM, Tyler Pirtle wrote: Hi cafe, I'm just gettin

Re: [Haskell-cafe] Conditional compilation for different versions of GHC?

2010-12-05 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/5/10 17:05 , Henning Thielemann wrote: > Isn't it better to move the dependency on 'base' out of the If block? I > mean, someone might succeed to use GHC-7 with base-4.2 or GHC<7 or a > different compiler with base-4.3. Since the base package is

Re: [Haskell-cafe] the beginning of the end

2010-12-05 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/5/10 15:07 , Andrew Coppin wrote: > you actually cannot do something as trivial as follow a conversation You can, just not via the web site. I do it in Tweetdeck all the time. That said, the important thing about Twitter is that it's *broadcas

Re: [Haskell-cafe] the beginning of the end

2010-12-05 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/5/10 12:34 , Daniel Peebles wrote: > Oh yeah, the 2.0 stuff that snobby techies love to hate :) hrrmpf back in my > day we programmed in binary using a magnetized needle on the exposed tape! I > don't need any of this newfangled bull. > > I

Re: [Haskell-cafe] the beginning of the end

2010-12-05 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/4/10 21:35 , Jason Dagit wrote: > In that case, here you go: > http://twitter.com/statuses/user_timeline/216043045.rss > http://twitter.com/statuses/user_timeline/17788765.rss > > You can get those by finding them on twitter and then clicking th

Re: [Haskell-cafe] Offer to mirror Hackage

2010-12-05 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/5/10 02:41 , Florian Lengyel wrote: > Why is there even any consideration of some committee if someone wants to > mirror the Hackage site? Why not mirror the site? Because it would be nice to have a mirror run by someone (a) accountable (b) who

Re: [Haskell-cafe] GHC 7.0.1 developer challenges

2010-12-04 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/4/10 14:35 , Riad S. Wahby wrote: > "Edward Z. Yang" wrote: >> There are many setuid binaries to non-root users, so getuid() != geteuid() >> would probably make more sense, though I'm not 100% it has all the correct >> security properties. > >

Re: [Haskell-cafe] GHC 7.0.1 developer challenges

2010-12-04 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/24/10 20:59 , John D. Ramsdell wrote: > Due to a security concern, GHC 7.0.1 disables all runtime flags unless > a new flag is provided during linking. Since limiting memory usage is > so important, many developers will modify their cabal files

Re: [Haskell-cafe] In what language...?

2010-12-03 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/28/10 08:47 , Florian Weimer wrote: > * Gregory Collins: > >> * Andrew Coppin: >>> Hypothesis: The fact that the average Haskeller thinks that this >>> kind of dense cryptic material is "pretty garden-variety" notation >>> possibly explains why

Re: [Haskell-cafe] RegEx versus (Parsec, TagSoup, others...)

2010-11-19 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/13/10 09:19 , Brent Yorgey wrote: > On Fri, Nov 12, 2010 at 03:56:26PM -0800, Michael Litchard wrote: >> a Perl perspective. I let him into what I was doing, and he opined I >> should be using pcre. So now I'm second guessing my choices. Why do >

Re: [Haskell-cafe] Error installing hp2any-graph on Snow Leopard

2010-11-15 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/8/10 04:52 , Ivan Lazar Miljenovic wrote: > I'm not sure how MacPorts does packaging, so you may require to > install a -dev or development version of glut to get the relevant > headers and library files. MacPorts always builds from source, so a

Re: [Haskell-cafe] Compiler constraints in cabal

2010-11-15 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/6/10 23:09 , wren ng thornton wrote: > On 11/6/10 6:20 AM, Reiner Pope wrote: >> I was aware of this condition, but I'm not precisely sure it addresses >> my requirements. When you run "cabal install some-package", cabal >> reads all version cons

Re: [Haskell-cafe] Re: "Haskell is a scripting language inspired by Python."

2010-11-11 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/11/10 11:12 , Simon Marlow wrote: > I bootstrapped GHC from the intermediate C files on a 640K PC around 1993 or > so. I don't remember exactly, but I think it might have worked, for some > small value of "work". If you used the right build env

Re: [Haskell-cafe] Re: Decoupling type classes (e.g. Applicative)?

2010-11-08 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/3/10 21:30 , Maciej Piechotka wrote: > On Tue, 2010-11-02 at 21:57 -0400, Brandon S Allbery KF8NH wrote: >> On 10/29/10 09:35 , Dominique Devriese wrote: >>> * Only introduce a dependency from type class A to type class B if a

Re: [Haskell-cafe] What is simplest extension language to implement?

2010-11-05 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/2/10 03:33 , Permjacov Evgeniy wrote: > Forth is quite easy to implement, but can it be used as extension > language? Wiki describes it as quite low level... It's low level but rather easy to build up more complex stuff. It's never been that po

Re: [Haskell-cafe] Decoupling type classes (e.g. Applicative)?

2010-11-02 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/29/10 09:35 , Dominique Devriese wrote: > * Only introduce a dependency from type class A to type class B if all > functions in type class B can be implemented in terms of the > functions in type class A or if type class A is empty. Er? Eq

Re: [Haskell-cafe] commutativity

2010-11-01 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/30/10 06:55 , Patrick Browne wrote: > -- Question 1 > -- commutative com 1 3 > -- This also gives true. Is it because of commutative equation or > because of the plus operation? Haskell doesn't know about commutativity; you got true because (+)

Re: [Haskell-cafe] Re: Current thinking on CompositionAsDot issue in haskell prime?

2010-10-31 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/29/10 22:30 , wren ng thornton wrote: > On 10/29/10 8:33 PM, C. McCann wrote: >> I suggest U+2621. > > I'm not sure I'd've ever recognized a funny 'z' as "caution sign"... :) You'd have to be a TeX / Metafont user to get that one. (The LaTeX b

Re: [Haskell-cafe] Re: Current thinking on CompositionAsDot issue in haskell prime?

2010-10-31 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/29/10 20:33 , C. McCann wrote: > I suggest U+2621. Did you mean U+2620 SKULL AND CROSSBONES there? - -- brandon s. allbery [linux,solaris,freebsd,perl] allb...@kf8nh.com system administrator [openafs,heimdal,too many hats] allb...@e

Re: [Haskell-cafe] Parsec in Haskell platform

2010-10-25 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/25/10 10:49 , Brandon S Allbery KF8NH wrote: > On 10/24/10 06:59 , Andrew Coppin wrote: >> now I can't seem to find it. Instead, I had to navigate to the Unix download >> page, download the source tarball, untar it (non-t

Re: [Haskell-cafe] Parsec in Haskell platform

2010-10-25 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/24/10 06:59 , Andrew Coppin wrote: > now I can't seem to find it. Instead, I had to navigate to the Unix download > page, download the source tarball, untar it (non-trivial under Windows), and I thought WinZip added tar and tar.gz several years

Re: [Haskell-cafe] Compiling and installing glib and gtk+ on Snow Leopard

2010-10-23 Thread Brandon S Allbery KF8NH
-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

Re: [Haskell-cafe] concurrency vs. I/O in GHC

2010-10-23 Thread Brandon S Allbery KF8NH
-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 blockin

Re: [Haskell-cafe] Haskellers.com skills list moderation?

2010-10-19 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/19/10 13:09 , Andrew Coppin wrote: > On 18/10/2010 09:59 PM, Magnus Therning wrote: >> On 18/10/10 21:56, Andrew Coppin wrote: >>> ...I thought *I* was the only person who's ever heard of Rexx? >> Every amiga user is very likely to have heard of

Re: [Haskell-cafe] An interesting paper from Google

2010-10-19 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/18/10 21:37 , Evan Laforge wrote: > For instance, currently I have the top consumer of both time and alloc > as 'get', which is 'lift . Monad.State.Strict.get'. Of course it > occurs in a million places in the complete profile, along with > myst

Re: [Haskell-cafe] An interesting paper on VM-friendly GC

2010-10-18 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/18/10 01:18 , Nathan Howell wrote: > On Sat, Oct 16, 2010 at 8:45 AM, Brandon S Allbery KF8NH > wrote: >> I thought Windows already had a system message for something like that. Or >> at least it used to, although I can see

Re: [Haskell-cafe] downloading GHC

2010-10-16 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/16/10 12:07 , Ketil Malde wrote: > Brandon S Allbery KF8NH writes: > >>> Linux users don't have easy binary installers, usually. What can we do >>> about this bootstrapping problem? > >> I thought the

Re: [Haskell-cafe] An interesting paper on VM-friendly GC

2010-10-16 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/16/10 05:35 , Andrew Coppin wrote: > GC languages are not exactly rare, so maybe we'll see some OSes start adding > new system calls to allow the OS to ask the application whether there's any > memory it can cheaply hand back. We'll see... I tho

Re: [Haskell-cafe] In what language...?

2010-10-15 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/15/10 16:36 , Andrew Coppin wrote: > Does anybody have any idea which particular dialect of pure math this paper > is speaking? (And where I can go read about it...) Type theory. It makes my head spin, too, since essentially my only exposure to

Re: [Haskell-cafe] An interesting paper from Google

2010-10-15 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/15/10 16:28 , Andrew Coppin wrote: > I'm surprised about the profiler. They seem really, really impressed with > it. Which is interesting to me, since I can never seen to get anything > sensible out of it. It always seems to claim that my program

Re: [Haskell-cafe] downloading GHC

2010-10-15 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/15/10 11:26 , Don Stewart wrote: > Linux users don't have easy binary installers, usually. What can we do > about this bootstrapping problem? I thought the answer to that was supposed to be "bug your distribution to package the Platform". - --

Re: [Haskell-cafe] Re: Re: Make your Darcs repositories hashed?

2010-10-13 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/13/10 13:48 , Jason Dagit wrote: > Isn't debian etch a security liability at this point? Never underestimate the inertia of a system which a professor uses for research or a grad student for their thesis work. - -- brandon s. allbery [linu

Re: [Haskell-cafe] Re: Re: A question regarding cmdargs package

2010-10-13 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/13/10 06:07 , Henning Thielemann wrote: > Ben Franksen schrieb: >> I wanted to create a clone of an existing program that had no help option >> and instead gave the help output if it saw an invalid option. > > I find it very annoying if a progra

Re: [Haskell-cafe] Haskellers.com recent changes (and I need some volunteers)

2010-10-12 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/11/10 03:37 , Michael Snoyman wrote: > "verified users" will be displayed here. I'm also considering adding a > new status as well: real picture, so that only people with real images > (not cartoons, not identicons) can show up on the homepage. I

Re: [Haskell-cafe] ANNOUNCE: tls, native TLS/SSL protocolimplementation

2010-10-12 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/11/10 04:41 , Brandon Moore wrote: > particular about cryptographic primitives. Some side channel attacks seem to > call for a very low-level language, to make it easier to verify that e.g. > execution time and the memory access pattern does not

Re: [Haskell-cafe] ANNOUNCE: tls, native TLS/SSL protocolimplementation

2010-10-12 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/11/10 04:06 , Sittampalam, Ganesh wrote: > While I agree with the potential benefits, I also worry that you will > end up making something that is far less well tested in practice. For > widely used and fairly low-level libraries like gnutls, ope

Re: [Haskell-cafe] Haskellers.com recent changes (and I need some volunteers)

2010-10-10 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/10/10 21:22 , Tim Matthews wrote: > seems crazy. I don't know how that works and whether having that status > absent means a haskeller is 'fake'/'imaginary' etc but I can't see how > anyone would like to be labeled '¬real' or 'not real'. I'll co

Re: [Haskell-cafe] Make your Darcs repositories hashed?

2010-10-09 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/9/10 08:30 , Christopher Done wrote: > Every Darcs repository I've pulled this year has always showed me this > message: > > *** > Fetching a hashed repository would be

Re: [Haskell-cafe] Re: Polyvariadic functions operating with a monoid

2010-10-09 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/9/10 10:25 , Kevin Jardine wrote: > instance Show a => Monoidable a [String] where > toMonoid a = [show a] > > main = putStrLn $ unwrap $ polyToMonoid [] True () (Just (5::Int)) > > fails to compile. > > Why would that be? My understanding

Re: [Haskell-cafe] ANNOUNCE: tls, native TLS/SSL protocol implementation

2010-10-09 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/9/10 09:17 , Malcolm Wallace wrote: > > On 8 Oct 2010, at 16:56, Donn Cave wrote: > >> wikipedia: "Managed code is a differentiation coined by Microsoft to >>identify computer program code that requires and will only execute >>under th

Re: [Haskell-cafe] Ordering vs. Order

2010-10-08 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/7/10 04:02 , Christian Sternagel wrote: > However, I do know that there are many publications about "ordered > structures" which use the word "ordering" (most of which I'm aware of, not > by native speakers). Like most things in Haskell, it's na

Re: [Haskell-cafe] Lambda-case / lambda-if

2010-10-05 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/5/10 12:38 , Henning Thielemann wrote: > In order to be consistent with current case, maybe in layout mode: > > \1 -> f > 2 -> g > > and in non-layout mode > > \{1 -> f; 2 -> g} +1; likewise for consistency it should support guards (which wo

Re: [Haskell-cafe] Lazy evaluation from "Why Functional programming matters"

2010-10-05 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/5/10 10:52 , C K Kashyap wrote: > And I had built up this impression that laziness distinguished Haskell > by a huge margin ... but it seems that is not the case. > Hence the disappointment. Haskell is lazy-by-default and designed around lazy ev

Re: [Haskell-cafe] Lambda-case / lambda-if

2010-10-02 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10/2/10 15:27 , Jan Christiansen wrote: > You can use a similar approach for case expressions ; ) There are several better (that is, not using unsafePerformIO) versions at http://haskell.org/haskellwiki/Case . - -- brandon s. allbery [linux,s

Re: [Haskell-cafe] Coding conventions for Haskell?

2010-09-27 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 9/27/10 17:07 , Max Rabkin wrote: > On Mon, Sep 27, 2010 at 22:57, Andrew Coppin > wrote: >> data Foo a b = >> Fooa | >> Bar b | >> Foobar a b >>deriving (Eq, Ord) > > Also, either your pipes don't line up, or you v

Re: [Haskell-cafe] Coding conventions for Haskell?

2010-09-26 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 9/25/10 11:06 , Donn Cave wrote: > Though it's common practice for sure, maybe universal, does the > "Don't insert a space after a lambda" rule make sense? > > I found it confusing at first sight, because of course it looks More to the point, some

Re: [Haskell-cafe] searching haskell-cafe ?

2010-09-19 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 9/19/10 20:12 , Jason Dagit wrote: > There may be someway to do a google search that is restricted to just > haskell-cafe archives but I'm not sure what the correct search syntax > would be. Something about in-url and then the url of the archives.

Re: [Haskell-cafe] Unified Haskell login

2010-09-17 Thread Brandon S Allbery KF8NH
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 9/17/10 17:43 , Brandon S Allbery KF8NH wrote: > On 9/17/10 05:27 , Neil Davies wrote: >> Why not use kerberos? > Mind, we use Kerberos heavily around here... but we have the infrastructure > that uses it. Web application space is

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