Squeak-dev January 2006

squeak-dev@lists.squeakfoundation.org

164 participants
300 discussions

About squeak image compatibility (3.6/7/8)
by Samir Saidani 09 Jan '06

09 Jan '06

Hello, I've recently noticed the arrival of the KeyedSet classes (Squeak 3.8), which break some codes I'm working on. So it is rather strange because I thought that efforts was focused on reducing the size of the image, on packaging and modularizing. Is there any real agreement about the way squeak core is managed ? More precisely, I see three options : 1. 3.6 > 3.7 > 3.8, which makes sense when the code is too young and must grow. 2. 3.6 | 3.7 | 3.8, which means that we add somewhere and remove elsewhere, and implies that packaged code is always endangered to be broken. 3. 3.6 < 3.7 < 3.8, which means that the modularizing plus packaging process is on the way. It seems that at least for 3.8 we are on the second track, is there any plan to switch to the third track ? Staying on track 2 is really painful for developers who work between three different images, a lot of time must be spent to keep compatibility of the package and the three version. When do we agree that 3.x and 3.x+1 must be compatible ? And first of all, do we agree that we must ensure compatibility between two successive version one day ? I mean by compatible: 1. If code is added in 3.x+1, an equivalent packaged code is provided for 3.x (not the case for KeyedSet even if there is a KeyedSet class in an embryonic state in Collections-Misc, but maybe I missed the information of another package ??). Hey, I've just noticed that this statement seems to connect directly track 1 to track 3. 2. If code is removed in 3.x+1, an equivalent interface is provided in 3.x and the old one are marked as deprecated. 3. If code is added or removed in 3.x+1 and breaks compatibility (for instance, removing deprecated methods), it should be mentionned explicitly, for the sake of coding :-) 4. If global compatibility can not be insured (track 2), it should be mentionned explicitly to developers into the image itself (to avoid digging endlessly into the mailing-list). 5. Probably something I missed which probably invalidate one or all the statement above... Regards, Samir

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pending mac vm 3.8.9b8
by John M McIntosh 09 Jan '06

09 Jan '06

A newly compiled mac vm 3.8.9b8 for os-x can be found at http:// www.smalltalkconsulting.com/squeak.html 3.8.9b8 There are a number of interesting changes this revision. a) We set the working directory via chdir, in the past this might have been the vm directory, but sometimes it was the os-x root directory This was causes things like the Squeak3D.log to be created in the root directory. b) We added a routine to resolve squeak files names to host platform names and exposed that api in the vm machine interface. c) Fixed a bug that has existed since the early days of Alias support, say 5 years back. The bug is that if you have a directory path, say vol:foo:bar:too.txt and the directory bar does not exist, the end result will be a file reference to vol:foo:too.txt, that of course is wrong . What was happening is that we would attempt to resolve the name, find it did not exist, then resolve by path components, when the path component lookup failed on directory "bar" we would signal the file was not found, but higher up in os-x we would think the file name did not exist and attempt to allocate the file as vol:foo:too.txt which would work... Now we signal a bad path name error when the partial path name won't resolve higher up in the chain of path components. This does not affect os-9 users. sqMacMain.c Set working directory to vm directory sqMacFileLogic.c Add interface to VM machine interface to expose converting file name from squeak internal rep to platform name, fix file name resolving bug. sqMacFileLogic.h remove makeOSXPath() sqMacUIEvents.h zero out utf32Code field to remove bogus data sqPlatformSpecific.h remove makeOSXPath() -- ======================================================================== === John M. McIntosh <johnmci(a)smalltalkconsulting.com> 1-800-477-2659 Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com ======================================================================== ===

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RE: Updated first page on www.squeak.org
by Peter Crowther 08 Jan '06

08 Jan '06

> From: [...] karl > I changed all the letters to upper chase. Should I use two spaces > between RISK and OS as well ? RISC OS or (in HTML) RISC OS Note the C, not K. I'm sure Tim will correct me if I have it wrong :-). - Peter

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About SqueakLight
by Lic. Edgar J. De Cleene 08 Jan '06

08 Jan '06

Today Steph say > I think that you can work on SqueakLight only but this will not help > Squeak in general. No ? How you think "discover" what to load, from where and in what order ? > I really like the idea of SqueakLight and also the effort that Pavel did. But Pavel goes beyond, to kernel.image. (I have a kernel.sources , not published by he, but build from his work by me) And then comes Steven Swerling and his QuiteSmall image. http://minnow.cc.gatech.edu/squeak/3935 and all Spanish pages try to do justice to all giants what do shrinking before and better. But the fact is nothing of this is SqueakLight. Because the baby evolutes, learning of mistakes. Today you could unload the newer , more compatible and no so powerful in SqueakLight3.7.3.zip from ftp://elpelotero@200-122-104-133.cab.prima.net.ar/ password: elpelotero And if really wish know what could do feeding it. http://200-122-104-133.cab.prima.net.ar:8888 (Swikis) http://200-122-104-133.cab.prima.net.ar:9000/seaside/blog/SummerTeam/ http://200-122-104-133.cab.prima.net.ar:9000/seaside/blog/SqueakLightChronic les / http://200-122-104-133.cab.prima.net.ar:8085 "ServerInfo, form here you culd see what is running and try" All running in SqueakLight, open to who care. http://wiki.gnulinex.org/squeakros (hosting provided by good people in Spain) Or more easy www.squeakros.net.tf and explore links from 09:00 to 23:00 GMT (aproximate) At your service. Edgar ___________________________________________________________ 1GB gratis, Antivirus y Antispam Correo Yahoo!, el mejor correo web del mundo http://correo.yahoo.com.ar

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Squeak and bluetooth
by Davide Varvello 08 Jan '06

08 Jan '06

Hi All, I'd like to interface Squeak, running on my mac, with a bluetooth device, but I'm a bit confused on what kind of approach to choose. First: FFI or plugins? I read FFI is quite slow compared to plugins, but if I have to call an os library and the rate of calls are not very frequent, probably FFI is a better choice (correct me if I'm wrong) Second: Carbon or Cocoa? As I read from the list and the swiki, there is a bridge, from Avi, to connect to Cocoa, but I didn't understand if I can use it from FFI. Finally: I tried the examples of FFI in a 3.8 image for MacOSX (ex. MacPixPatPtr, MacRect, ...), but the code use an obsolete module, InterfaceLib, instead of Carbon.framework (see http://minnow.cc.gatech.edu/squeak/5585), I changed the first with the second and I had no errors, but nothing displayed. Suggestions? TIA Davide

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Re: LEGO Group Unveils LEGO(r) MINDSTORMS™ NXT Robotics Toolset at Consumer Electronics Show
by Michael Haupt 08 Jan '06

08 Jan '06

Dear all, On 1/5/06, Frank Caggiano <frankcag(a)crystal-objects.com> wrote: > [some very good news] thanks, Frank, that saved my day. :-) Speaking of which - I have heard that there was a Squeak VM running on the RCX (I don't mean the SqLego thing). Is that true, can I get hold of it? In any case, if the new brick has the required capabilities, wouldn't it be nice to have a Smalltalk interpreter running on it? I'd like to contribute, if anybody wants my assistance. Best, Michael (euphoric)

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Fix for HttpUrl retrieveContents
by Todd Blanchard 08 Jan '06

08 Jan '06

How does one get a fix into standard squeak release? I changed this: HttpUrl>>retrieveContentsArgs: args ^self retrieveContentsArgs: args accept: 'application/octet-stream' to this: HttpUrl>>retrieveContentsArgs: args ^self retrieveContentsArgs: args accept: (MIMEDocument guessTypeFromName: self) because trying to fetch a .css file from an IIS server would produce an error using the former technique (it wants text/css as an ACCEPT type). -Todd Blanchard

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REMINDER: Squeak Chat Monday January 9th 00:00 GMT
by Ken Causey 08 Jan '06

08 Jan '06

Just a reminder that the next Squeak Chat will take place between 00:00 (Midnight) and 04:00 (4 AM) GMT Monday January 9th, 2006. As usual we will meet in #squeak on irc.freenode.net. More information about the #squeak IRC channel can be found at http://people.squeakfoundation.org/article/7.html This is a good time to contribute to the development of Squeak by participating in the Harvesting Process. One of the main ways to contribute is by Reviewing submitted fixes and enhancements. For information about the Harvesting Process see http://minnow.cc.gatech.edu/squeak/3152 If you have the time please attend and work toward the future of Squeak. The next seven chats are scheduled for 04:00 (04:00 AM) GMT Friday January 13, 2006 08:00 (08:00 AM) GMT Tuesday January 17, 2006 12:00 (12:00 PM) GMT Saturday January 21, 2006 16:00 (04:00 PM) GMT Wednesday January 25, 2006 20:00 (08:00 PM) GMT Sunday January 29, 2006 00:00 (12:00 AM) GMT Friday February 03, 2006 04:00 (04:00 AM) GMT Tuesday February 07, 2006

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[ANN] new version of AudioVideoLib available
by Martin Kuball 07 Jan '06

07 Jan '06

Hi! I made a new version of my AudioVideoLib package. It's available from SqueakSource at kilana.unibe.ch. Before making a first release for SqueakMap I would ask 3 questions: 1. I have a script with some code snippets that show how to use the lib. How can I include this into a SqueakMap package? 2. AudioVideoLib has some classes that need initialization. Unfortunately there are some dependencies and the order of initialization is important. A test with a fresh image went just fine. But I wonder if this was by accident or because squeak is realy clever. 3. At the moment AudioVideoLib consists of 4 packages. Do you think this is OK or would 1 big package be much better? Martin

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[ANN][PR][MA] New Releases on SqueakMap
by Lukas Renggli 07 Jan '06

07 Jan '06

I published the latest code of Magritte and Pier on SqueakMap: * Magritte: Not many changes, but a few bug-fixes and small improvements. The reporting part is still experimental and incomplete, so don't complain about that ;-) * Pier: A lot of minor changes, fixes, improvements and a couple of new hooks to ensure easier extensibility without the use of overrides. Pier works with the latest version of Seaside and fully supports bookmark-able URLs on all its links. When updating an existing instance, take care that I changed the names of PRSeasideFrame, PRSeasideMain, PRSeasideConfiguration to PRPierFrame, PRPierMain, PRPierConfiguration; this might require that you re-register your kernel as a Seaside application. * Pier Unix Security: A new experimental package providing a simple unix like security system, using no overrides and being fully integrated (thanks to Magritte) into all currently available views (Seaside, Pier). When loading this package all the prerequisites such as Magritte and Pier and Seaside (if requested) will be automatically loaded. The default user name/password is admin/pier. To add/change user/groups it is required to directly use the image. Have fun, Lukas -- Lukas Renggli http://www.lukas-renggli.ch

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