[Haskell-cafe] [ANN] xmobar 0.17 released
I've just released version 0.17 of xmobar, a lightweight system monitor written in Haskell. Homepage: http://xmobar.org Release notes: http://xmobar.org/releases.html _New features_ - Icons support: it's now possible to insert bitmaps in the template (Edward O'Callaghan, Alexander Polakov and Tomáš Janoušek). - Initial support for reacting to mouse clicks (Alexander Polakov). - New `TopP` and `BottomP` alignments, taking left and right paddings (thanks to Dmitry Malikov). - New `freeratio` field for memory monitor (Peter Simons). - New `allDesktops` and `overrideRedirect` configuration options, providing dock behaviour in tiling WMs (when set to True and False respectively). Cf. discussion at [github #105]. - Experimental `-d` (start as a dock) option, may address [github #67] in some window managers. _Bug fixes_ - Partial (as reports go) fix for [github #77]. - Safer volume plugin (Dmitry Malikov). - Battery percentage capped at 100% (RJ Regenold). Enjoy! -- I always pass on good advice. It's the only thing to do with it. It is never any use to oneself. -Oscar Wilde ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] [ANN] xmobar 0.16 released
I've just released xmobar 0.16, the lightweight text-based system monitor written in Haskell. See http://projects.haskell.org/xmobar, and full release notes below. As always, thanks a bunch to the many contributors, who keep helping me improving xmobar and making it more and more useful. The continuous flow of patches and suggestions is one the nicest things about hacking on and maitaining xmobar. This is a somewhat risky release, because some users are reporting problems with GHC 7.6.1 and xmonad (see links below), but there are so many new features and fixes, and happy users of the unstable version, that i thought a release was in order. Please, do not hesitate to complain about problems you might encounter: i'll do my best to fix them in subsequent releases. Thanks! ## Version 0.16 (Dec 3, 2012) _New features_ - New monitor `AutoMPD`, which uses asynchronous events to display MPD status (thanks to Ben Boeckel). - New monitor `BufferedPipeReader` displaying data from multiple pipes (thanks to Jochen Keil). - New monitor `DynNetwork`, which detects the active interface automatically, by Reto Hablützel - New monitor, `Locks`, displaying the status of lock keys, by Patrick Chilton. - Extension for DBUS signal handling (Jochen Keil) - Hide/Reveal: one can send signals to xmobar and make it (un)hide itself (Jochen again). - `PipeReader`'s default text is now configurable, by Reto Hablützel. - Dependencies updated to latest mtl and libmpd (thanks to Sergei Trofimovich). - Dependencies on the deprecated dbus-core removed in favour of dbus 0.10 (thanks to Jochen Keil). - MPris2 now includes genre and composer among its fields. _Bug fixes_ - `DiskIO` now can report overall activity in all partitions of a device which is not mounted itself (e.g., sda when sda1, sda3, etc. are the mounted partitions). Thanks to John Soros. See [github #73]. - `DiskU`, the disk usage monitor, works again correctly on Linux, instead of randomly crashing every now and then, and reporting wrong used size. - When using antialiased fonts, we were causing a memory leak in the X server by repeatedly allocating colors that, apparently, the server doesn't know how to get rid of (even when told so!). We're caching them now and X server memory doesn't grow. - Compilation errors and warnings with GHC 7.6 removed (thanks to Raghavendra D Prabhu for his reports in [github #71]). _Known problems_ Some users have reported problems with xmobar compiled with GHC 7.6 in ArchLinux: see [github #78] and pointers therein. Please, send reports of any problems or successes in that regard so that we can fix any remaining issues. Thanks! [github #71]: https://github.com/jaor/xmobar/issues/71 [github #73]: https://github.com/jaor/xmobar/issues/73 [github #78]: https://github.com/jaor/xmobar/issues/78 ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] [ANNOUNCEMENT] xmobar 0.14
On Sun, Dec 11 2011, Roman Cheplyaka wrote: * Jose A. Ortega Ruiz j...@gnu.org [2011-12-11 08:43:01+0100] On Sun, Dec 11 2011, Brandon Allbery wrote: [...] xmobar currently requires parsec 3.x; the above is the symptom of building it against 2.x. Aha, thanks for pointing this out, guys. Peter, would using parsec 3.x be an acceptable solution to you? To avoid problems like this, please specify version constraints in the .cabal file. See [1] for the details. Thanks for your suggestion. Yes, that's what i was thinking of doing; but i wanted to know before that if there might be reasons for people not being able or not wanting to use parsec 3 (in which case i might try to rewrite the parsing code using parsec 2-compatible calls, assuming there's a compatibility layer in parsec 3). Cheers, jao -- One reason that life is complex is that it has a real part and an imaginary part. -Andrew Koenig ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] [ANNOUNCEMENT] xmobar 0.14
On Sun, Dec 11 2011, Roman Cheplyaka wrote: [...] To avoid problems like this, please specify version constraints in the .cabal file. See [1] for the details. I'm actually preparing a new release with stricter version constraints (the new .cabal is https://github.com/jaor/xmobar/blob/master/xmobar.cabal, in case anyone has the time to check whether i'm doing something dumb). It's clear to me what contraints to use for packages not included in ghc, but there're some of them that come with the compiler (unix, time and filepath in my case): what's the best practice regarding those packages? I've left they're version unspecified, intending to mean whatever version comes with your ghc. Is that a good practice? TIA, jao -- Ignorance more frequently begets confidence than does knowledge - Charles Darwin ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] [ANNOUNCEMENT] xmobar 0.14
I'm happy to announce the release of xmobar 0.14. Xmobar is a text-based, minimalistic status bar for linuxy systems, written in Haskell. See http://projects.haskell.org/xmobar for details. Many, many thanks to the many, many contributors, and apologies for taking so long to put their code and fixes under a new release. In this episode: _New features_ - New brightness monitor, courtesy of Martin Perner. - New DateZone plugin, for configurable timezone and localized datetimes, also by Martin. - New keyboard layout monitor (Kbd). Yes, by Martin. - Rewrite of the event handling ([issue 53], [issue 57]), you guessed it. - Cpu monitor now also reports `iowait` field ([issue 55]). - Battery monitor: the full charge file is now settable in the monitor arguments (olpc systems use `charge_full_design`; see [issue 62]). _Bug fixes_ - [issue 45]: Fix for crashes with AC status changes in battery monitor. - [issue 48]: The quality field of Wireless behaves like a percentage. - [issue 50]/[issue 61]: `MPD` monitor now works with libmpd 0.6. - [issue 60]: Fixes for crashes on power resume for battery monitor. - Template sections without fields are now correctly displayed. - Catch errors when reading battery status (Ben Boeckel). - Compilation issues with ghc 7.x (Sergei Trofimovich). - Fixes for CoreTemp monitor in new kernels (Norbert Zeh). - Fix for pulseaudio problems in volume monitor (Martin Perner). - Fix for parsing errors when a `Run` entry ended in an array (Martin). - Fixed compilation in OpenBSD (Ivo van der Sangen). [issue 45]: http://code.google.com/p/xmobar/issues/detail?id=45 [issue 48]: http://code.google.com/p/xmobar/issues/detail?id=48 [issue 50]: http://code.google.com/p/xmobar/issues/detail?id=50 [issue 53]: http://code.google.com/p/xmobar/issues/detail?id=53 [issue 55]: http://code.google.com/p/xmobar/issues/detail?id=55 [issue 57]: http://code.google.com/p/xmobar/issues/detail?id=57 [issue 60]: http://code.google.com/p/xmobar/issues/detail?id=60 [issue 61]: http://code.google.com/p/xmobar/issues/detail?id=61 [issue 62]: http://code.google.com/p/xmobar/issues/detail?id=62 Cheers, jao ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] [ANNOUNCEMENT] xmobar 0.14
On Sun, Dec 11 2011, Brandon Allbery wrote: [...] xmobar currently requires parsec 3.x; the above is the symptom of building it against 2.x. Aha, thanks for pointing this out, guys. Peter, would using parsec 3.x be an acceptable solution to you? Cheers, jao -- Life isn't about finding yourself. Life is about creating yourself. -George Bernard Shaw, writer, Nobel laureate (1856-1950) ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] ANNOUNCEMENT: xmobar 0.13
I'm happy to announce the release of xmobar 0.13. xmobar is a lightweight, text-based system monitor for un*x systems. See http://projects.haskell.org/xmobar/ for the whole story. ## Version 0.13 (March 28, 2011) _New features_ - New `Volume` monitor displaying ALSA soundcards information, by Thomas Tuegel. - New `ThermalZone` plugin substituting `Thermal` and using linux's *sysfs* interface (you need this one if you're using a kernel version equal to or above 2.6.37). See [issue 44]. - xmobar app new has WM_CLASS, WM_NAME and _NET_WM_PID xprops ([issue 38]). _Incompatible changes_ - In the process of solving [issue 14], we've broken those configurations that rely on including alignment separators in the input fed to `StdinReader`. - The MPD plugin does not accept host and port options anymore: use the environment variables MPD_HOST and MPD_PORT instead. - The `Mail` plugin now takes a second parameter (a string) specifying its alias. As a side-effect, this solves [issue 30]. _Bug fixes_ - [issue 14]: `StdinReader` and other plugins accepting external input don't get confused anymore when characters from `alignSep` appear in their input. - [issue 27]: `BottomSize` placement now respects its width argument. - [issue 28]: Compilation in Mac OS X fixed. - [issue 30]: `Mail` plugin can be specified anywhere in commands list. - [issue 36]: Battery monitor now supports non-standard locations of the `/sys/class/power_supply/AC/online` file. - [issue 40]: Battery monitor now supports the new power_now, that replaces current_now in linux kernels for v. 2.36 and above. - [issue 42]: More accurate net monitor rates. - DiskIO, Cpu and MultiCpu monitors are also more accurate now. - Text is now correctly centered vertically. - `FullBM` border spec fixed. Happy monitoring, jao -- Computer games don't affect kids; I mean if Pac Man affected us as kids, we would all be running around in darkened rooms, munching magic pills, and listening to repetitive electronic music. - Kristian Wilson, Nintendo Inc. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] ANN: xmobar 0.12 released
I'm happy to announce a new relase of xmobar, the text-based monitor bar. You can read everything about xmobar and this release at our new web address (http://projects.haskell.org/xmobar/), or see below for a summary of what's new (cf. http://projects.haskell.org/xmobar/releases.html). ## Version 0.12 xmobar has a new [maintainer], a new [website], a new [mailing list] and uses a new [source code repository]. Many thanks to Andrea Rossato, xombar's author and maintainer so far, for creating xmobar in the first place, and for giving me the chance to become its maintainer. And a big thanks to Ben Boeckel, Petr Rockai and Norbert Zeh for their patches. [website]: http://projects.haskell.org/xmobar/ [mailing list]: http://projects.haskell.org/cgi-bin/mailman/listinfo/xmobar [source code repository]: https://github.com/jaor/xmobar [maintainer]: http://hacks-galore.org/jao/ _New features_ - Window borders: configuration options `border` and `borderColor` allow drawing borders around xmobar's window. - New monitor, `Uptime`, showing the system uptime. - New monitor argument (`-S`) to enable displaying the `%` symbol in percentages or other suffixes (e.g., units in Uptime and Network); the symbol is now never included by default. - New 'run once' commands, by specifying a 0 refresh rate in `Run Com` ([issue 26]). - MPD monitor: updated to libmpd 1.5. New fields `ppos` (playlist position) and `remaining` (remaining time). New configuration options to specify MPD's host, user name and password. - Battery monitor: new `watts` and `timeleft` fields (Petr Rockai), and specific arguments to control coloring and thresholds of the former. - MultiCPU monitor: new `auto*` fields that automatically detect all present CPUs (Ben Boeckel). - CpuFreq monitor uses just one decimal digit for GHz values (Petr Rockai). - Mail plugin expands paths starting with ~/ (Ben Boeckel). Ditto MBox. - Weather monitor now skips not retrieved fields, instead of displaying a long error message. - New compilation flag, `all_extensions`. - Documentation and website updates. _Bug fixes_ - [issue 23]: Wireless monitor is now compatible with iwlib 29. - [issue 24]: Swap monitor's used ratio display fixed. - [issue 25]: Percentages only include `%` if requested using `-P`. - [issue 31]: MPD monitor now respects `-W` argument. - Fixes in CPU frequency formatting, string alignment and colour boxes in monitors (Norbert Zeh). - TopMem and TopProc now use the `-L` and `-H` options correctly for memory template fields. - MBox skips non-existent mbox paths instead of hanging. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] New Xmobar maintainer: request for comments
Hi, I've recently accepted Andrea Rossato's kind offer to take over maintainership of xmobar, and i wanted to ask for feedback to the community. My apologies for cross-posting to the cafe and xmonad, but xmobar didn't have a mailing list until a couple days ago. My immediate plans are to fix some low-hanging bugs, incorporate a handful of patches and contributions i have in my repo and make a new release (0.12). Besides that, i've created a mailing list (xmo...@projects.haskell.org, http://projects.haskell.org/cgi-bin/mailman/listinfo/xmobar, also mirrored at gmane.comp.lang.haskell.xmobar) and i will move xmobar's homepage to http://projects.haskell.org/xmobar (not done yet). Perhaps more disruptingly, i'm thinking of moving source code management from darcs to git (right now, i maintain a _mirror_ at github, http://github.com/jaor/xmobar). But xmobar has a very lively user base and many contributors, and i wouldn't like to alienate or disturb anyone: would that move be frown upon by the community? I also plan to keep hacking and adding (not many) features to xmobar in the future, and would be delighted to hear from you: please, do not hesitate to send your feature requests or any other comment directly to me or to the new list. Thanks in advance for your feedback, and special thanks to Andrea for creating xmobar and giving me this great chance of being more than a mere spectator of the haskell world. Cheers, jao -- Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it. - Alan Perlis, Epigrams in Programing ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: Functional dependencies and Peano numbers
On Sat, Jul 10 2010, wren ng thornton wrote: [...] Yes, you can add multiple dependencies. The syntax is to use , after the first |. While having eight parameters is surely a desperate need for refactoring, there are times when you'd want multiple dependencies. For example, you can say class F a b | a - b, b - a where... to express a bijective function on types (that is, for every pair of A and B, if you know one of them then you know what the other must be uniquely). I know i should read the relevant articles, but how would one express such a bijection using type families? TIA, jao -- You err by thinking simplicity and elegance are mostly cosmetic. Simplicity and elegance are overwhelmingly practical virtues. - William D Clinger, comp.lang.scheme ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: Run haskell program in emacs without typing main in the ghci buffer.
Zura_ x...@gol.ge writes: Hello, Is it possible to run haskell program in emacs without typing main in the ghci buffer? Assuming main function exists of course. Or, maybe automate sending main\n string to ghci buffer input. In other words, I want edit/run/see result style session. Assuming you're using haskell-mode, does M-x inferior-haskell-load-and-run do what you want? You can of course define a shortcut for it: (define-key haskell-mode-map \C-l 'inferior-haskell-load-and-run) If you don't want to load the file, just run main: (defun haskell-main () (interactive) (inferior-haskell-send-command (inferior-haskell-process) :main)) (This a very simple version; there're many possible variations; for instance, adding (swith-to-haskell) at the end). HTH, jao ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] ANN: darcsum.el 1.2 released
Simon Michael si...@joyful.com writes: Unfortunately it will still hang if darcs emits something it can't parse. An emacs process-filter is used to drive an interactive darcs command, like an expect script. The process-filter can receive darcs output in random chunks, so it's hard to distinguish a parse failure from partial output, unless the output has a recognisable prefix, which some of it does not (eg darcs amend's.) I'm not sure what a more robust way to drive darcs looks like. Maybe i'm not understanding the problem, but cannot you just accumulate the output in an auxiliary variable and parse the ouput as a whole once the darcs process finishes? Thanks a lot for working on darcsum, btw! jao -- There are two ways to write error-free programs; only the third one works. - Alan Perlis, Epigrams in Programing ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: Using Cabal during development
Johan Tibell johan.tib...@gmail.com writes: It's really unfortunate that this approach doesn't work for .hsc files. When writing low level libraries I often have a couple of these which forces me out of my nice Emacs workflow into an Emacs + terminal + Cabal workflow. I use the elisp code below to run cabal without leaving emacs, with its output going into a compilation buffer (so that one can jump to the errors). C-c c will find the cabal file nearest to the current buffer and invoke cabal. HTH, jao --8---cut here---start-8--- (defun jao-locate-dominating-files (regexp optional file) Look up the directory hierarchy from FILE for a file matching REGEXP. Stop at the first parent where a matching file is found and return the list of files that that match in this directory. (catch 'found (let ((dir (file-name-as-directory (or file (buffer-file-name files) (while (and dir (not (string-match locate-dominating-stop-dir-regexp dir))) (if (setq files (condition-case nil (directory-files dir 'full regexp 'nosort) (error nil))) (throw 'found files) (if (equal dir (setq dir (file-name-directory (directory-file-name dir (setq dir nil nil))) (defun jao-haskell-locate-cabal-file () Find the cabal file associated with current buffer. (car (jao-locate-dominating-files .+\\.cabal))) (eval-after-load 'haskell-mode '(add-hook 'haskell-mode-hook (lambda () (set (make-local-variable 'compile-command) cabal build (defun jao-haskell-cabal-build () Run, in a compilation buffer, a cabal command, after finding the cabal file associated with this buffer. (interactive) (let ((cabal-file (jao-haskell-locate-cabal-file))) (unless cabal-file (error Couldn't find associated cabal file)) (let ((default-directory (file-name-directory cabal-file))) (call-interactively 'compile (eval-after-load 'haskell-mode '(define-key haskell-mode-map [?\C-c ?c] 'jao-haskell-cabal-build)) --8---cut here---end---8--- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] cannot post to haskellmode-em...@projects.haskell.org
Hi, all my posts to the haskellmode-emacs list (using the address in the subject) are being rejected with the error: 451 451 Temporary local problem - please try later (state 18) (after several retries by the Google smtp server, which i use as a smarthost). Any idea of what could be causing this problem? Thanks! jao -- There are two ways to write error-free programs; only the third one works. - Alan Perlis, Epigrams in Programing ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: question about hsc2hs
Ross Paterson r...@soi.city.ac.uk writes: If you compile your C program with -D_FILE_OFFSET_BITS=64 you'll get the same numbers that hsc2hs does. Aha, that was the key to solve my problem: programs or libraries compiled with that flag must use statfs64() instead of statfs(). Binding to the former in my .hsc produces correct results. Thanks for the hint, Ross. Cheers, jao ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
question about hsc2hs
Hi. I'm copying below a question i sent to another list about hsc2hs (and for which i got no response), in the hopes that it will be not be OT here. My apologies if it is! I'm trying to write a simple C binding for statfs(2). Simplifying, writing an hsc file that contains the following snippet: #include sys/vfs.h data CStatfs foreign import ccall unsafe sys/vfs.h statfs c_statfs :: CString - Ptr CStatfs - IO CInt getFileSystemStats :: String - IO CLong getFileSystemStats path = allocaBytes (#size struct statfs) $ \vfs - useAsCString (pack path) $ \cpath - do res - c_statfs cpath vfs case res of -1 - return 0 _ - do bsize - (#peek struct statfs, f_bsize) vfs bcount - (#peek struct statfs, f_blocks) vfs bfree - (#peek struct statfs, f_bfree) vfs bavail - (#peek struct statfs, f_bavail) vfs -- Just for demonstration: the original code creates a data structure return $ bsize + bcount + bavail + bfree gives rise, when using hsc2hs, to this translation: getFileSystemStats path = allocaBytes ((84)) $ \vfs - useAsCString (pack path) $ \cpath - do res - c_statfs cpath vfs case res of -1 - return 0 _ - do bsize - ((\hsc_ptr - peekByteOff hsc_ptr 4)) vfs bcount - ((\hsc_ptr - peekByteOff hsc_ptr 8)) vfs bfree - ((\hsc_ptr - peekByteOff hsc_ptr 16)) vfs bavail - ((\hsc_ptr - peekByteOff hsc_ptr 24)) vfs return $ bsize + bcount + bavail + bfree (where i have deleted LINE directives). The problem is that the size and some of the offsets of the C struct statfs computed by hsc2c are wrong: i'm in a 32bit linux system, and i've checked, using a C program, that sizeof(struct statfs) is 64 (hsc2 is giving 84 -- although perhaps Haskell needs additional space for housekeeping?), and that the offsets of f_bfree and f_bavail are, respectively, 12 and 16 (not 16 and 24). Also, i know that 12 and 16 are the right values because putting them by hand gives me the correct statfs values. (This is ghc 6.10.4 on a debian/sid system) What am i doing wrong? TIA! jao -- It is hard enough to remember my opinions, without also remembering my reasons for them. -Friedrich Wilhelm Nietzsche, philosopher (1844-1900) ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: question about hsc2hs
Ross Paterson r...@soi.city.ac.uk writes: On Tue, Feb 02, 2010 at 03:51:18PM +0100, Jose A. Ortega Ruiz wrote: [...] The problem is that the size and some of the offsets of the C struct statfs computed by hsc2c are wrong: i'm in a 32bit linux system, and i've checked, using a C program, that sizeof(struct statfs) is 64 (hsc2 is giving 84 -- although perhaps Haskell needs additional space for housekeeping?), and that the offsets of f_bfree and f_bavail are, respectively, 12 and 16 (not 16 and 24). Also, i know that 12 and 16 are the right values because putting them by hand gives me the correct statfs values. If you compile your C program with -D_FILE_OFFSET_BITS=64 you'll get the same numbers that hsc2hs does. But when i use those offsets (16, 24) in my Haskell program (generated by hsc2hs), i get the wrong values when i inspect the struct filled by statfs() (via the call performed by Haskell's FFI), while if i put (by hand this time) the ones (12, 16) given by the C program without _FILE_OFFSET_BITS defined, the results are correct. So it looks like the C library, or the generated code, is not using that value for _FILE_OFFSET_BITS. Do i need to compile my Haskell code using a similar flag? (Sorry if i'm missing something obvious.) Thanks! jao ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
[Haskell-cafe] Re: haskell-mode.el mailing list (+ dpatch)
Svein Ove Aas svein@aas.no writes: Well, I know when I'm beat.. http://trac.haskell.org/haskellmode-emacs/ http://projects.haskell.org/cgi-bin/mailman/listinfo/haskellmode-emacs Excellent! Thanks. Any objection to my adding the list to gmane.org? Cheers, jao -- A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail? ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: haskell-mode.el mailing list (+ dpatch)
Svein Ove Aas svein@aas.no writes: I certainly don't mind. I've noticed that the list administrative interface has a news-gateway option. Is there anything I should do there? I've submitted the request. I don't think the news-gateway option is needed in this case, but i'll ask when i hear back from gmane. Thanks! jao -- I don't necessarily agree with everything I say. -Marshall McLuhan (1911-1980) ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: haskell-mode.el mailing list (+ dpatch)
valery...@gmail.com (Valery V. Vorotyntsev) writes: Is there anybody except me feeling the need for mailing list and issue tracker for emacs' haskell-mode? FWIW, you have my vote too. I'm convinced that a discussion forum and tracker would foster contributions from the many emacs users in the community. Cheers, jao -- Purely applicative languages are poorly applicable. - Alan Perlis, Epigrams in Programing ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: ANNOUNCE: htzaar-0.0.1
Hi, When i try to cabal install htzaar i get the following error: src/Main.hs:11:7: Could not find module `Play': Use -v to see a list of the files searched for. cabal: Error: some packages failed to install: htzaar-0.0.1 failed during the building phase. The exception was: exit: ExitFailure 1 Any idea about what's going on? Thanks! jao -- Editing is a rewording activity. - Alan Perlis, Epigrams in Programing ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: ANNOUNCE: htzaar-0.0.1
Tom Hawkins tomahawk...@gmail.com writes: Sorry, I forgot to add the other modules to the cabal file. Try htzaar-0.0.2. Thank you, it's working now. jao -- The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. - George Bernard Shaw ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: Examples of using Haskell for mathematics
Brent Yorgey [EMAIL PROTECTED] writes: Hi all! In a couple weeks I will be giving a short (15-min.) talk to an audience of mostly mathematicians, entitled Executable Mathematics: A Whirlwind Introduction to Haskell. The idea will be to give a flavor of Haskell, its uniquenesses, and why it is a great language for playing around with mathematics, by way of some well-chosen examples. There are definitely plenty of such examples out there, and I've already found quite a few that I might use, but I thought I would send an email to the cafe to ask whether anyone has any code which you think particularly exemplifies some aspect of why Haskell is a great language for mathematics. I'm looking to include a wide range of examples, so any length (from a few to hundreds of lines of code) and any level (from simple number theory to things only a few people in the world understand) are fair game. I've enjoyed immensely several entries in Dan Piponi's 'A Neighborhood of Infinity'. In particular, 'Infinitesimal rotations and Lie algebras': http://sigfpe.blogspot.com/2008/04/infinitesimal-rotations-and-lie.html made me decide once and for all that i want to grok Haskell. HTH, jao -- Go to Heaven for the climate, Hell for the company. - Mark Twain ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
haskell newbie seeking for advice
hi all, as stated in the subject, i'm a newcomer to haskell programming: i've read some tutorials and (portions of) a couple of books and am really fascinated with the language. but my haskell coding experience is limited to toy programs and short exercises. so i decided to try my hand at a small project to really learn haskell and the functional programming mindset[1], and i would appreciate to hear your opinions and comments on some issues before i start coding: - build toolchain. i'm used to the autoconfig/automake/make tools for C/C++ projects, and to ant for Java stuff. what do haskellers use? my initial thought was using a plain Makefile with ghc, but there is also hmake and maybe other tools i am missing. what would you use? [2] - graphics toolkit. one of my programs will be a GUI. there seems to be a lot of choice here: gtk2hs looks nice (as used in hircules) and fudgets seems to have a pretty interesting and well-documented architecture (which covers also client/server programming: i'll be using a client/server architecture too) but its widgets are uglier and look alien in current linux desktops. i'd like to have a fudgets-gtk framework of sorts :) and then, there is htoolkit, Object I/O and whatnot... any recommendations? - TCP/IP stuff. i will have a client/server architecture with TCP/IP as the transport protocol. other than fudgets, i'm not aware of any haskell framework for IPC: am i missing something? - XML. i'll be handling XML documents, and HaXml seems to me an excellent candidate to cover this area, but, of course, i'm very interested in hearing of alternatives... thanks a lot for your help! cheers, jao Footnotes: [1] if that matters, the project will consist on a set of utilities for handling a document metadata database, based upon the OMF standard. [2] my project will consist of several executables, sharing a set of common libraries and, therefore, i plan to use (if possible) a non-flat directory layout. -- Come to think of it, there are already a million monkeys on a million typewriters, and Usenet is NOTHING like Shakespeare. - Blair Houghton. ___ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe
