August 2002 - Hugs-Users

Hugs, Mac OS X 10.1.5, and pathnames
by Hamilton Richards 21 Feb '03

21 Feb '03

In OS X, pathnames have two distinct syntaxes. The GUI uses the pre-X syntax, in which a pathname begins with a volume name and the separator is `:', as in Macintosh HD:Users:ham:Documents:whatever.hs In the Darwin (i.e., unix) command-line "underworld", a pathname begins with /Volumes, spaces are escaped with `\', and the separator is `/', as in /Volumes/Macintosh\ HD/Users/ham/Documents/whatever.hs When you drag a file icon onto the command line, Terminal does the right thing-- it converts the pathname from the GUI syntax to the Darwin syntax, and utilities such as more work just as they should. Hugs, however, doesn't do so well. For example, Prelude> :l /Volumes/Macintosh\ HD/Users/ham/Documents/whatever.hs Reading file "/Volumes/Macintosh\": ERROR "/Volumes/Macintosh\" - Unable to open file "/Volumes/Macintosh\" Quoting the pathname changes the problem, but doesn't cure it: Prelude> :l "/Volumes/Macintosh\ HD/Users/ham/Documents/whatever.hs" ERROR - Missing `\' terminating string literal gap Apparently what's confusing Hugs is the `\', because removing it cures the problem: Prelude> :l "/Volumes/Macintosh HD/Users/ham/Documents/whatever.hs" Reading file "/Volumes/Macintosh HD/Users/ham/Documents/whatever.hs": Is this problem unavoidable, or is it just an oversight? Thanks, --Ham -- ------------------------------------------------------------------ Hamilton Richards Department of Computer Sciences Senior Lecturer Mail Code C0500 512-471-9525 The University of Texas at Austin Taylor Hall 5.138 Austin, Texas 78712-1188 ham(a)cs.utexas.edu hrichrds(a)swbell.net ------------------------------------------------------------------

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hugs ffi - question thats been bugging me for some time
by R. Legere 31 Dec '02

31 Dec '02

In docs/ffi-notes.txt, I find the following: ------------------------------------------------------------ o foreign export static is not implemented. You can code around this by writing: foreign import dynamic foo_dynamic :: Addr -> (A -> B -> C) foreign label foo_addr :: Addr foo = foo_dynamic foo_addr instead of: foreign import foo :: A -> B -> C ------------------------------------------------------------------------- Does anyone understand what this is saying? I can't grok it. The work around presented here seems to have nothing to do with foriegn export static. It looks like a workaround to not having foreign IMPORT static. (Which we of course dont need a workaround for :)). Is something extremely tricky going on or am i just dense? Anyway, just curious, I have not had any trouble working around by passing pointers to the C-side using foreign export dynamic. I have just wondered about this for a long long time :)

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Hugs on MacOS X 10.2
by Johan Nordlander 30 Aug '02

30 Aug '02

Dear MacOS X users, As some of you have reported already, the latest MacOS X version (10.2) breaks hugs. After going through the hurdles of upgrading and fixing the problems myself, I'd like share my findings. Most importantly, the current binary distribution won't run under 10.2 due to some dynamic linking problem that I haven't investigated in any depth. A simple recompilation solves that problem, though. I've updated the binary package on the hugs download page, so a simple install of that package should solve the linking problem (note that the name is still the same as the old one). If you'd rather compile the source distribution yourself that should work just fine as well. However, MacOS X 10.2 presents a few other problems for hugs users as well. Firstly, the way tcsh finds its rc files has been changed. So if you (like me) relied on a system-wide script to find your rc files in ~/Library/init/tcsh/ you'll probably notice that your files aren't read anymore, and (worse), /usr/local/bin/ isn't in your default path. This means that hugs won't be found after you've installed it. The README file in /usr/share/tcsh/examples/ will tell you how to restore the old functionality, though. Secondly, if you did a clean install when you upgraded to 10.2 you'll find that the entire /usr/local tree has been moved away to a backup location, together with a bunch of other "system"-oriented directories. This won't affect hugs per se if you're reinstalling the new binary package, but if you're also relying on other packages (like X11 or readline), you might want to either reinstall those, or move them back from the backup directory. The backed-up file are found in /Previous\ Systems/. Hope these tips will help hugs run smoothly on your Mac again! -- Johan

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A question about artaffairs.com???
by Hayk Terzibashian 30 Aug '02

30 Aug '02

Hi, I found you online and I was wondering if you'd able to tell me if advertising in http://www.ArtAffairs.com is a good idea?? I have a picture frame manufacturering company in California and I'm looking for differing advertising channels. I will appreciate your input! Hayk Terzibashian Novel Co, P.S. You are welcome to check out my web site at: http://www.NovelFrames.com

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Reklam Vermek ��in Servet �demeyin
by info 25 Aug '02

25 Aug '02

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23 Aug '02

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downloading problems solution (?)
by Laudien, Joachim 19 Aug '02

19 Aug '02

Hi, I remember downloading problems with Netscape. In most cases the problem was that Netscape replaced Unix line ends (0A) with DOS line ends (0D 0A) - even in binary files, not only .msi, but also .tgz and others. Replacing all 0D 0A by 0A with a hex editor (e.g. http://www.chmaas.handshake.de/delphi/freeware/xvi32/xvi32.htm) solves the problem. I didn't encounter a file containing a "real" 0D 0A yet :-) Kind regards Joachim Wolf Laudien

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Your message to Hugs-Bugs awaits moderator approval
by hugs-bugs-admin＠haskell.org 16 Aug '02

16 Aug '02

Your mail to 'Hugs-Bugs' with the subject Happy Assumption Is being held until the list moderator can review it for approval. The reason it is being held: Message body is too big: 141584 bytes but there's a limit of 40 KB Either the message will get posted to the list, or you will receive notification of the moderator's decision.

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Winhugs question ...
by Peter Wentworth 06 Aug '02

06 Aug '02

Hi, I'm not sure who maintains WinHugs, but I have a specific feature request: namely that the fonts in the window be selectable. I occasionally like to demo something in the classroom. Being able to set font sizes larger is most useful. The workaround, (using the magnifier toos for visually impaired) is very awkward. So it suggests that settable fonts would also help anyone who might be visually impaired. peter

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