On Mon, 2009-08-03 at 00:24 +0400, Bulat Ziganshin wrote:
. . .
and the primary way to make haskell program faster is to emulate
imperative language. and the best way to optimize C program is to use
it as cpu-independent assembler.
it's all natural in von-Neumann world and i personally
On Fri, Jul 31, 2009 at 05:01:07PM -0700, Don Stewart wrote:
We're pleased to announce the third release of the Haskell Platform: a
single, standard Haskell distribution for everyone.
The specification, along with installers (including Windows and Unix
installers for a full Haskell
Hello,
is there a pretty printer for haskell code somewhere ? I've googled and
caballisted for this without success. I've written some small script
using Language.Haskell.Pretty and Language.Haskell.Parser but the result
isn't that 'pretty'. I mean, it outputs readable code but
supercombinator's
I tried the Mac OS X package yesterday, after getting frustrated with
random crashes in my broken GHC 6.9 install... It worked flawlessly,
and got me set up in minutes. Great job everyone associated with
building this installer -- it's now definitely my preferred way of
getting GHC on a
Hi Paul,
is there a pretty printer for haskell code somewhere ? I've googled and
caballisted for this without success. I've written some small script
using Language.Haskell.Pretty and Language.Haskell.Parser but the result
isn't that 'pretty'. I mean, it outputs readable code but
I had a play with this yesterday and thought it looked very useful (like
all of John MacFarlane's tools). I'm probably going to use it for a
site I'm working on.
-Rob
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On Mon, Aug 3, 2009 at 6:38 AM, CK Kashyap ck_kash...@yahoo.com wrote:
Thanks Sebastian,
ppm module is indeed very useful. So, I guess my question then just boils
down to, how can I write a function to mimic the setPixel function -
Basically, a blank white image would look like this (as
It's possible to serve the generated site with maid, in case apache is
not available:
cabal update
cabal install maid
yst create testsite
cd testsite
yst
cd site
maid
now goto http://localhost:3000/
On Mon, Aug 3, 2009 at 9:05 AM, John MacFarlanej...@berkeley.edu wrote:
I'm pleased to
I've been trying to write some simple web application in haskell using
FastCGI, HDBC and HStringTemplate. I've got stuck with the following
problem.
HDBC throws some exceptions and I wanted them to be caught and logged.
The code was:
-- Main.hs
module Main (main) where
...
import
On Mon, Aug 3, 2009 at 4:32 PM, Victor Nazarovasviraspossi...@gmail.com wrote:
I've been trying to write some simple web application in haskell using
FastCGI, HDBC and HStringTemplate. I've got stuck with the following
problem.
[snip]
main :: IO ()
-- main = runFastCGIConcurrent' forkIO 10
Hi Alecs,
On Mon, Aug 3, 2009 at 1:27 AM, Alecs Kingale...@gmail.com wrote:
Thanks for the hard work.
But there's a problem of the source tarball. scripts/build.sh skips
building already-installed pkgs -- but scripts/install.sh does not skip
installing them. So 'make install' fails (err:
Thanks. I'll put a note to this effect in the README.
John
+++ Jinjing Wang [Aug 03 09 18:17 ]:
It's possible to serve the generated site with maid, in case apache is
not available:
cabal update
cabal install maid
yst create testsite
cd testsite
yst
cd site
maid
now goto
Hi haskellers,
I have a few problems using monad transformers. I have such two functions:
parseSyslog :: StateT Integer Parser TimeStamp
parseString :: StateT Integer Parser LogString
and the following code:
parseString = do
-- string parse here, all in the form of lift $ parser
stamp
Hi Paul,
the expression (lift parse $ parseSyslog message) has the same
meaning as (lift parse (parseSyslog message)), so you are indeed
applying lift to two arguments, while it expects one. Probably you
forgot the $ after lift?
Best regards,
Daniel
Paul Sujkov schrieb:
Hi haskellers,
Hey John,
I noticed that your code is using the Syck library for Yaml. How were you
able to get it to deal with Unicode characters? I just wrote a new yaml
library based on libyaml if you want to give it a shot (yaml on hackage). It
doesn't support aliases, but is otherwise feature complete.
Robin Green schrieb:
Yes, and darcs repos can also be hosted on patch-tag.com.
community.haskell.org requires you to wait for a volunteer to review
every new project request. Although, you don't need to make a
project request if you only want a 1-developer repository. And by the
way, it only
On Mon, Aug 3, 2009 at 10:46 AM, Paul Sujkov psuj...@gmail.com wrote:
parseSyslog :: StateT Integer Parser TimeStamp
parseString :: StateT Integer Parser LogString
and the following code:
parseString = do [...]
Without real code to look at, it's impossible to properly debug the errors
in
On Mon, Aug 3, 2009 at 11:46 AM, Paul Sujkovpsuj...@gmail.com wrote:
2) too many lifts in the code. I have only one function that really affects
state, but code is filled with lifts from StateT to underlying Parser
You do know you can do this, right?
do x - get
put (x + 1)
lift $ do
Excerpts from John MacFarlane's message of Mon Aug 03 03:05:00 +0200 2009:
I'm pleased to announce the release of yst, now available on HackageDB.
Great! I've used it for a web site of mine today with success.
--
Nicolas Pouillard
http://nicolaspouillard.fr
On Mon, Aug 3, 2009 at 11:17 AM, CK Kashyap ck_kash...@yahoo.com wrote:
Thanks Sebastian,
Array/accumArray sounds like what I am looking for.
Int - ( a - a ) - [a] - [a]
approach, would it not be expensive on memory as well? Or is it just speed?
Well memory will be garbage collected fairly
+++ Michael Snoyman [Aug 03 09 22:20 ]:
Hey John,
I noticed that your code is using the Syck library for Yaml. How were you
able to get it to deal with Unicode characters? I just wrote a new yaml
library based on libyaml if you want to give it a shot (yaml on hackage).
It
Matthias Görgens schrieb:
Round-to-even means x.5 gets rounded to x if x is even and x+1 if x is
odd. This is sometimes known as banker's rounding.
OK. That's slightly unusual indeed.
Modula-3 makes it too.
Accidentally, I recently had a case where this rounding mode was really
bad. I
+++ John MacFarlane [Aug 03 09 13:23 ]:
+++ Michael Snoyman [Aug 03 09 22:20 ]:
Hey John,
I noticed that your code is using the Syck library for Yaml. How were you
able to get it to deal with Unicode characters? I just wrote a new yaml
library based on libyaml if you want
I ran into exactly the same problem while working on my own toy language :)
I used a fixed point datatype to solve it as well. This is really the best
way, as it lets your expression (or statment) type be a member of
functor/foldable/traversable, which is super handy. I made a graph module
that
The middle road could be Curry http://en.wikipedia.org/wiki/Curry, sorry,
this Curry http://www.informatik.uni-kiel.de/~curry/, a functional-logic
language. I know that curry has gained a lot of interest from prolog
programmers. There are compilers from Curry to Prolog. It is a haskell 98
Heinrich Apfelmus schrieb:
Sure, overloading is useful. But to avoid headache in a polymorphic
language, I'd prefer a principled approach to it. Hence, I'm convinced
that there should be only one mechanism for overloading in Haskell;
which is type classes at the moment.
It appears that
Heinrich Apfelmus schrieb:
Note that there are alternative solution for this particular problem.
For instance, a version of qualified with different semantics will do;
something like this
import Data.List
import sometimes qualified Data.Map as Map
Isn't that quite the same as
Hi Bryan,
GHC 6.10.1, Parsec 3.0.0 and type signatures are right from the code: they
are actually real (except the ones with the shortcuts). I see now that it
is really a better idea to use internal Parser state to collect the data I
need to carry through, so in any case thank you
I've sent two
Hi all,
I've written a Yaml library built on top of libyaml (the same C library at
the core of Python's yaml library). All is well on my local system and my
server; I'm currently using it in production. However, the build is failing
on Hackage with the following build log:
Hi,
I am trying to understand the design of the Haskell interface files. Why
are they a separate file rather than having the same data in the object
file generated by the compiler? (Naively, it seems to me this would work
also. Am I missing something?) Thanks.
Howard B. Golden
Northridge,
On Mon, Aug 3, 2009 at 4:44 PM, Don Stewartd...@galois.com wrote:
Following Simon M's advice, I look over the typical batteries
categories, using Python as input:
http://docs.python.org/library/index.html
The following things were missing from the current Platform. There are many.
How
alexander.dunlap:
o pandoc — markdown, reStructuredText, HTML, LaTeX, ConTeXt,
Docbook, OpenDocument, ODT, RTF, MediaWiki, groff
No. Pandoc is too actively developed to go into the HP. It's also much
more of an end-user application than a standard library - it's
applications are
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