Greetings,
I'm writing a small webcrawler. Usually I used tagsoup for such tasks
but this time I decided to give hxt a try.
Unfortunately, I ran into the troubles with character encodings. The
site I'm targeting uses cp1251, which is the one of the most popular
among sites in Russian. Pages
On 17.12.2010 01:09, Jeremy Shaw wrote:
Hello,
You should use happstack-data for this (you do not need the other
happstack components to use happstack-data)*. It was created to solve
this exact problem.
happstack-data builds on type of the 'binary' library and adds versioned
data types and
Greetings,
while developing my neural net simulator I stumbled upon a problem.
I have a data type NeuralNet and use Show and Read instances for saving
and loading configurations. As time passed, I changed the data type, so
the program can no longer load files saved in previous versions.
I
Hello,
while building GUIs using Gtk2HS I always struggled with the following
question: how to sync the state of the GUI with the state of the rest
application. I usually make several IORefs store the state there. But
it's quite easy to forget to update relevant parts of GUI when state
On 27.10.2010 13:16, Andy Stewart wrote:
Christopher Donechrisd...@googlemail.com writes:
On 27 October 2010 10:13, Dmitry V'yalakam...@gmail.com wrote:
While ago I had a question about opening the url in the default browser from
haskell program. I didn't get any immediate answers so I
Hello haskellers,
While ago I had a question about opening the url in the default browser
from haskell program. I didn't get any immediate answers so I wrote my
own solution. On Linux it uses xdg-open and on Windows - ShellExecute Api.
Later I received a letter saying what similar
Hello list,
I'm trying to make a clickable link in gtk2hs program. Clicking it
should open an url in the default browser. Can I hope to find some
portable solution in gtk2hs (it should work in linux and windows) or
should I start searching platform specific ones, like /usr/bin/xdg-open
or
Hello,
recently I've cabalized my program and it brought some problems.
First of all, I made use of 'import Paths_package name' functionality
to get the path of installed data files. It works great, but now I can
no longer run my program in ghci because this module is auto-generated
by
On 12.10.2010 13:45, Magnus Therning wrote:
On Tue, Oct 12, 2010 at 10:20, Dmitry V'yalakam...@gmail.com wrote:
Hello,
recently I've cabalized my program and it brought some problems.
First of all, I made use of 'import Paths_package name' functionality to
get the path of installed data
Hello, haskellers.
Recently I stumbled upon a problem. It may sound quite off-topic for
this list, but, I'm sure, almost every haskell programmer runs into it
sooner or later.
It sounds: How to make a neat Windows installer for a nice Gtk2hs
program I wrote last week? How to solve the
Greetings anyone,
Some time ago I with a friend of mine implemented a toy interactive
simulator of neural network activity. It has a totally imperative design
and uses Gtk2hs for user interface parts.
The darcs repository is available here:
http://vyal.ru/code/spiking_neuro
Now we decided
Hello haskellers,
I want to host a simple happstack application behind a reverse proxy. So
ideally would be to bind it to localhost only.
According to
http://hackage.haskell.org/packages/archive/happstack-server/0.4.1/doc/html/Happstack-Server-HTTP-Types.html#t%3AConf
Conf datatyle has only
Greetings, fellow haskellers.
Currently I'm writing some kind of web crawler in haskell with gtk2hs gui.
All network operations are run in separate thread, but sometimes input
from user is needed. Afaik, gtk2hs is not thread safe, so I came up with
following:
I create two mvars, A and B,
Greetings. I'm trying to render some glyphs from ttf font to svg image using
gtk2hs cairo binding. Since I can find nothing appropriate in gtk2hs API, I
decided to draw outlines with bezier curves myself. But how to get them out of
font? As far as I know, freetype library is capable of
Iván Pérez Domínguez wrote:
I'm using Gentoo Linux. We obviously don't use prebuilt packaged
versions, but installing it is just doing emerge wxhaskell and
'playing the... waiting game'. Gtk2hs support under Gentoo is mostly
missing (the package is included, but doesn't work at all).
Hmm,
Bulat Ziganshin wrote:
it is what i say about. threaded RTS + multipls threads that does
computations + one thread that interfaces with Gtk2Hs. afaiu, the only
problem is that i need to manage both Gtk events and periodically
check queue of commands from other threads, but using timer + Chan
Duncan Coutts wrote:
The problem at the moment with GUIs and GHC's threaded RTS is that there
is now way to specify that all the Haskell threads that want to do GUI
stuff must run on a single OS thread. It's not impossible to solve but
it requires either more support from the RTS or it needs
Hello.
How can one profile a program which uses gtk2hs?
I get this:
$ ghc --make MainGui.hs -prof
Chasing modules from: MainGui.hs
Could not find module `Graphics.UI.Gtk.Mogul':
use -v to see a list of the files searched for
(imported from ./TreeViewHelpers.hs)
I tried to specify gtk2hs
Hi, all.
I'm writing a GUI app using Haskell and Gtk2HS. All goes well besides one thing.
I need to display some messages in russian and I can't figure out, how to handle
that.
Gtk uses UTF-8 internally, so i have to pass UTF-8 strings to it somehow. But
how to define them in source file? I get
Hello, Bulat
I'm currently working on some kind of program for analysing FAT partitions.
Don't ask why did I chose to implement it in Haskell :) Just for fun.
My program needs to read scattered chunks of binary data from a huge file and to
do a good amount of deserialisation.
I implemented
Duncan Coutts wrote:
You didn't do anything wrong. By default that's what happens with large
libs built with ghc.
However, the current development version (and so the next release
version) of Gtk2Hs has support for ghc's split objects feature. With
this, a simple Gtk2Hs Hello world program
Christophe Poucet wrote:
I have to concur with Duncan.
I started using Gtk2Hs for a small project and literally within a couple
hours I had a good understanding upon which to build a nice gui as well as
the gui itself. I haven't tried out wxhaskell, but trying gtk2hs and it's
cairo
zell_ffhut ?:
Last attempt, as its due in a couple of hours
Here's what i have so far..
charToGrid :: Char - Position - Grid - Grid
charToGrid c [] (row,col) xs = xs
charToGrid c (row,col) xs = (changeValue c (concat xs (row*9 + col)))
Using changeValue -
changeValue x 0 (y:ys)
Barbier de Reuille Pierre wrote:
And how can you, in Haskell, detect symbolic links ?
One can use System.Posix.Files.isSymbolicLink function for that purpose.
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Donald Bruce Stewart wrote:
Can I ask if just using a `seq` works as well? That was enough (now I
recall) for the watchdog code I posted earlier.
-- Don
In my case this doesn't work
timeout :: DeepSeq a = Int - IO a - IO (Maybe a)
timeout n t = do res - par_io timer thr --timer
I believe you're just observing lazy evaluation at work. The IO
computation that you're forking is (return $ resolve cnf). `resolve` is
a pure function. Hence the forked computation succeeds immediately--and
the thread terminates (successfully)--without evaluating (resolve cnf).
It isn't
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