- Libraries - Haskell.org

[hoelz@wisc.edu: [Haskell] Haskell Xlib bindings]
by dons＠cse.unsw.edu.au 07 Mar '07

07 Mar '07

This question is best asked on the libraries(a)haskell.org list, so I'll forward it there. Failing that, best to contact the maintainer of the xlib package. Cheers, Don ----- Forwarded message from Rob Hoelz <hoelz(a)wisc.edu> ----- Date: Sun, 04 Feb 2007 16:00:44 -0600 From: Rob Hoelz <hoelz(a)wisc.edu> To: haskell(a)haskell.org Subject: [Haskell] Haskell Xlib bindings Hello everyone, This question probably belongs in GUI, but I tried posting there a week ago and have yet to get a response. My question is this: Why do the Haskell Xlib bindings have no way to extract the property event from an event pointer? For example, the following functions are available: get_KeyEvent, get_ButtonEvent, get_MotionEvent, etc. but there's no get_PropertyEvent. Why was this left out? It seems pretty critical to the functionality of an Xlib program to someone who's been programming in C with Xlib for quite some time. Thanks, Robert Hoelz _______________________________________________ Haskell mailing list Haskell(a)haskell.org http://www.haskell.org/mailman/listinfo/haskell ----- End forwarded message -----

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ANN: Bugfixes for regex-posix and regex-pcre ByteString use
by Chris Kuklewicz 06 Mar '07

06 Mar '07

I got a bug report from the #haskell IRC channel last night that empty ByteStrings were broken. The new bugfixed versions of the affected packages are: regex-posix-0.92 regex-posix-0.72 regex-pcre-0.92 regex-pcre-0.81 All the above have been uploaded to http://hackage.haskell.org/ and are available via darcs (see below). Details: regex-posix-0.92 replaces the "unstable" regex-posix-0.91 that I announced yesterday. The bug fix also applied to ByteString.Lazy repository: http://darcs.haskell.org/packages/regex-unstable/regex-posix/ regex-posix-0.72 replaces the regex-posix-0.71 that came with GHC 6.6 repository: http://darcs.haskell.org/packages/regex-posix/ The repository version is setup to compile alongside GHC in some way that I cannot easily package, so the tarball on hackage has edited Wrap.hsc and cabal files. regex-pcre-0.92 replaces the "unstable" regex-pcre-0.91 that I announced yesterday. The bug fix also applied to ByteString.Lazy repository: http://darcs.haskell.org/packages/regex-unstable/regex-pcre/ regex-pcre-0.81 replaces the "stable" regex-pcre-0.80 that is compatible with the regex-base-0.71 supplied with GHC or regex-base-0.72 that I announced yesterday. repository: http://darcs.haskell.org/packages/regex-pcre/

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ANN: regex-base version 0.72
by Chris Kuklewicz 05 Mar '07

05 Mar '07

The version 0.71 of regex-base supplied with GHC 6.6 has a bug in Text.Regex.Base.Context: > instance (RegexLike a b) => RegexContext a b (MatchResult b) where that essentially uses 'tail' where it should not, and this may even be using tail on an empty list. This has been patched in the just announced unstable version of regex-base 0.83 and this message announces that the stable repository at http://darcs.haskell.org/packages/regex-base/ now has version 0.72 which is just 0.71 with this bug fixed. For the eventual GHC 6.6.1 release, the supplied version of regex-base should either be conservatively updated to 0.72 or updated to the slightly more convenient regex-unstable/regex-base version (currently 0.83). Cheer, Chris Kuklewicz

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Is Read / Show for serialization or pretty printing?
by Shae Matijs Erisson 05 Mar '07

05 Mar '07

HAppS development during the ghc6.4 era required Read/Show for serialization, and binary serialization isn't yet popular for HAppS. Because of that, SURI.hs (Show URI) was added to HAppS to wrap Network.URI. I vaguely recall that Network.URI's Show instance was rewritten for GHC 6.6, but the current instance is more for pretty-printing than serialization. To make a long story short, Network.URI does not use derived Read and Show instances, and that causes problems when trying to get invertible serialization. The fix in our opinion is to switch to derived Read and Show instances for Network.URI. Shae & Lemmih -- I've tried to teach people autodidactism, | ScannedInAvian.com but it seems they always have to learn it for themselves.| Shae Matijs Erisson

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Issues with System.Posix.Files
by David Brown 05 Mar '07

05 Mar '07

Hi, I'm writing some code to use System.Posix.Files to restore a filesystem. I've discovered a few missing things. - There is a createDevice, but the mode values needed to pass to this call aren't exported (blockSpecialMode, characterSpecialMode). - In fact, it would be nice to be able to have fileTypeModes exported as well as each of the types. One would assume that someone using System.Posix wishes to access things at this kind of level. Thanks, David Brown

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Cabal, Hackage, and License-File
by John Goerzen 04 Mar '07

04 Mar '07

Hello, In my packages, I typically use a format with: * COPYRIGHT: the collection of copyright statements * COPYING: My license * 3rd-party-licenses/*: Licenses for contributed code Now, most of my packages these days don't have 3rd-party-licenses. But there is a problem with Cabal's sdist. It doesn't put files into the generated tarball that it doesn't know about. On a project of any reasonable size, there may be two dozen people that hold copyrights on parts of it. It's not practical to keep that all up-to-date in the .cabal file, IMHO. That's why I have the COPYRIGHT file. The license file is useless without it. So what do I do here to make sure that all the license docs wind up in the generated tar.gz? In case you're wondering, I don't like to hack up the COPYING file with all the local copyright stuff. Just makes it more annoying to have all that in the license file. -- John

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Proposal: Add ioeGetLocation, ioeSetLocation to System/IO/Error.hs
by Ian Lynagh 04 Mar '07

04 Mar '07

This is a proposal to add ioeGetLocation and ioeSetLocation to System/IO/Error.hs. The functions are visible only to GHC and hugs; nhc is already missing some of this family of functions. The meat of the patch is +ioeGetLocation :: IOError -> String +ioeGetLocation ioe = ioe_location ioe +ioeSetLocation :: IOError -> String -> IOError +ioeSetLocation ioe str = ioe{ ioe_location = str } Deadline: About a week after discussion stops. Thanks Ian

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cabal-make for base libs etc
by Conal Elliott 03 Mar '07

03 Mar '07

I'd love to have friendlier haddock docs for the base libs and other libraries that I use & peruse. Specifically, I'd like per-entity source code links and syntax-colored source code. This sort of friendliness is what cabal-make <http://haskell.org/haskellwiki/Cabal-make> make easy & consistent. Has anyone else tried cabal-make yet? Are there any obstacles to wanting to use it? Cheers, - Conal

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Re: Proposal: System.Timeout module for base (Trac #980)
by Andriy Palamarchuk 02 Mar '07

02 Mar '07

----- Original Message ---- From: Peter Simons <simons(a)cryp.to> > On a more personal note, I'd like to point out how much easier > improving this module would be for everyone if it were available > in a darcs repository. One of the nicest things about darcs is > that it makes it quite simple to contribute patches. You just say > "record", then you say "send", and then it's done! I feel > http://darcs.haskell.org/packages/base would be a great place to > make the module available for everyone to contribute. With darcs there is no need to have all the development be done in a central repository, right? One can create a parallel repository for particular development goals, and move changes into the central repository as needed. This is the model used for Linux kernel development. Guess it is not always easy for individual developers to give access to their repositories, and to keep darcs server running all the time. Do you suggest that haskell.org would host such parallel repositories? BTW, you can also attach module source, patch, haddock output files to the ticket, and just publish URLs to them. Wonder if that can make work on this module somewhat easier. Andriy ____________________________________________________________________________________ Never miss an email again! Yahoo! Toolbar alerts you the instant new Mail arrives. http://tools.search.yahoo.com/toolbar/features/mail/

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Scheme Snow repository based on Hackage?
by dons＠cse.unsw.edu.au 02 Mar '07

02 Mar '07

http://snow.iro.umontreal.ca/?tab=Home Looks remarkably like Hackage! :-) -- Don

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