Squeak-dev August 2006

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151 participants
220 discussions

ESUG Erlang talk
by Brent Vukmer 25 Aug '06

25 Aug '06

I saw on James Robertson's blog that Joe Armstrong will be presenting at this year's ESUG. http://www.esug.org/conferences/14thinternationalsmalltalkconference2006/co… http://permalink.gmane.org/gmane.comp.lang.erlang.general/16928 Exciting stuff! Are there any plans to get video or audio of his talk? Thanks, Brent

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A bug with pointSize?
by Javier Diaz-Reinoso 25 Aug '06

25 Aug '06

Is this a bug?: f0:=TextStyle defaultFont. p0:=f0 pointSize. f1:=(StrikeFont familyName: (f0 name) size: (f0 pointSize)). p1:=f1 pointSize. f0 asString, ' p0=', p0 asString, ' ', f1 asString, ' p1=', p1 asString

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REMINDER: Squeak Chat Saturday August 26th 04:00 GMT
by Ken Causey 25 Aug '06

25 Aug '06

Just a reminder that the next Squeak Chat will take place between 04:00 (4 AM) and 08:00 (8 AM) GMT Saturday August 26th, 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 08:00 (08:00 AM) GMT Wednesday August 30, 2006 12:00 (12:00 PM) GMT Sunday September 03, 2006 16:00 (04:00 PM) GMT Thursday September 07, 2006 20:00 (08:00 PM) GMT Monday September 11, 2006 00:00 (12:00 AM) GMT Saturday September 16, 2006 04:00 (04:00 AM) GMT Wednesday September 20, 2006 08:00 (08:00 AM) GMT Sunday September 24, 2006

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FW: Image Unique Identifier
by Ron Teitelbaum 24 Aug '06

24 Aug '06

Sorry about the HTML. -Ron From: Ron Teitelbaum Sent: Tuesday, August 22, 2006 4:09 PM All, I need a unique image identifier. Does anyone have any suggestions? The identifier must be unique so that if someone copies an image to another machine I get a new id. It must also be unique by instance, so that if two images or the same image is launched multiple times I should get unique identifiers. The id should be local and non transferable plus it should never persist, since I would like to use this id to prevent movement between images of objects like in spoon, magma, glorp, squeakELib, croquet, or any other distributed objects scheme. The id will be used first in my SSL implementation. My first thought was to use Network Card NIC address + image PID. Are these values available through squeak? Are they available across every platform? (if they are an you know how to retrieve them please let me know) What I dont like about these numbers is that they are public numbers. What would really be cool is if the VM assigned a UUID every time it started stored in a non accessible object so that we could only get a string back instead of a full object that someone might be tempted to move from image to image. Thank you everyone for your help and ideas. All suggestions are very much welcomed! Feel free to contact me off list too. Ron Teitelbaum

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Fwd: If python goes Etoys, let's go scripting then - with the best IDE for creating and a clean license for running(!) scripts
by Markus Gaelli 24 Aug '06

24 Aug '06

> It is amusing that everybody is interested in defining the language, > but nobody seems to want to define the proper class library for a > scripting system. The important part is string matching and I/O, not > the format for the language. Make a script be the same as a > workspace, except that there is an automatic "do it" on the entire > script. > > -Ralph Hi Ralph, Masashi answered this question yesterday partially, but as a reply to the "close set" of adresses of my original mail. Please find his answer below. Markus > Hello, > >> What was missing were more practical, readibly-accessible libraries >> to deal with files etc. For that I simply used regular Smalltalk >> code, but for example I did not add anything specific to know about >> the folder you were in and do something useful there. So while you >> could do: >> >> c:\>vwscript " 'myfile.txt' asFilename writeStream nextPutAll: >> 'Hello' " >> >> it was a bit more tedious to start enumerating files etc. > > I developed FileMan package for handling multi files easily. > > FileMan: > http://map.squeak.org/package/f9917683-25da-4a6c-a013-b36527a100c1 > > In FileMan, you can write such kind of code. > > "ex1. Write 'Hello' to a file 'myFile.txt'" > 'myfile.txt' asFileEntry fileContents: 'Hello'. > > "ex2. Enumerate all .image files in the current directory" > '.' asDirectoryEntry filesMatches: [:each | each name endsWith: > '.image']. > > Also, Yamamiya-san had once developed Folktale, which provides a > command shell > interface for a headless Squeak. > > Folktale: > http://map.squeak.org/package/f5f09337-51ea-4b59-acf3-c7b57b32638d > > Just FYI. > -- > [:masashi | ^umezawa]

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for 3.10...
by Stéphane Ducasse 24 Aug '06

24 Aug '06

I wanted add this to the bugs for 3.10 but I could not do it since I could not find the project | set | set := Set new. Smalltalk allClasses do: [:each | set addAll: each organization categories.]. ^ set select: [:each | each first = $*]. shows that we have some dirty method categories. Stef

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[BUG] Block arguments are shared across blocks
by Lukas Renggli 24 Aug '06

24 Aug '06

Yet another show stopper in Squeak: http://bugs.impara.de/view.php?id=4636 Quite a dangerous thing, if you are not aware of it. Cheers, Lukas -- Lukas Renggli http://www.lukas-renggli.ch

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Re: Domaining using classes.
by Klaus D. Witzel 24 Aug '06

24 Aug '06

On Thu, 24 Aug 2006 09:46:18 +0200, Alexandre Bergel wrote: > Sorry to answer so late, I got few emergencies in my work. So we have to thank you twice for your response :) > The technique you describes, Classboxes and selector namespace are > similar somehow. They provide way to (i) support changes in an > unanticipated ways and to (ii) obtain a better modularity of cross- > cutting concern. Note that these techniques are not alone, family > polymorphism (i.e., the gbeta programming language), virtual classes > (i.e., caesarJ), mixin-based inheritance (i.e., Units in MZScheme) help > in achieving similar goals. > > The differences between those systems reside in some very subtle detail > in their semantics. In your example, what happens if a a method in the > "bd" domain calls a method foo in the "ad" domain. Now ad.foo call bar, > which is defined in both domain. In domaining using classes, this is exactly what is wanted, all behavior (=methodDict's) is shared at the oop level, no copy hangs around :) > Which one get invoked ? Domain a and domain b have precisely the same superclass (oop). So the answer is: always the right one, since there exists only one implementor. /Klaus > Depending on the answer, you have the behavior of Classboxes or selector > namespace. If you want more about those difference, I can point out a > paper we wrote on it. > > Regards, > Alexandre > > > Am Aug 12, 2006 um 4:45 AM schrieb Klaus D. Witzel: > >> On Sat, 12 Aug 2006 03:41:17 +0200, Michael van der Gulik wrote: >> ... >>> In other words, each domain has its own set of classes, but each class >>> shares its instance variables (methodDict, instanceVariables, >>> superclass, format etc) with other classes of the same... er... class. >>> >>> I could probably cludge up some Namespacing or other magic to get >>> "Person" to resolve to the domain's local version of the Person class, >>> so you don't need to use "adPerson" and "bdPerson" but just "Person". >> >> Have you considered using classboxes for that, see >> >> - http://citeseer.ist.psu.edu/684648.html >> >> Though classboxes is about local methods, it can be put to use for >> "just" local classes. >> >> /Klaus >> >

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Work to be done
by Hernan Wilkinson 24 Aug '06

24 Aug '06

Hi, is there a page with all the 'pending' things to do with Squeak? or ideas to implement, etc?. The reason I'm making this question is because in our course (Advance Object Oriented Design, at the University of Buenos Aires) we give students assigments to do in a three to four months time frame and we ran out of ideas.... Thanks, Hernan. -- ______________________________ Lic. Hernán A. Wilkinson Gerente de Desarrollo y Tecnología Mercap S.R.L. Tacuari 202 - 7mo Piso - Tel: 54-11-4878-1118 Buenos Aires - Argentina http://www.mercapsoftware.com --------------------------------------------------------------------- Este mensaje es confidencial. Puede contener informacion amparada por el secreto profesional. Si usted ha recibido este e-mail por error, por favor comuniquenoslo inmediatamente via e-mail y tenga la amabilidad de eliminarlo de su sistema; no debera copiar el mensaje ni divulgar su contenido a ninguna persona. Muchas gracias. This message is confidential. It may also contain information that is privileged or otherwise legally exempt from disclosure. If you have received it by mistake please let us know by e-mail immediately and delete it from your system; you should also not copy the message nor disclose its contents to anyone. Thanks. ---------------------------------------------------------------------

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Re: human readable? (was: Scripting syntax: all expressions or declarations?)
by Damien Pollet 24 Aug '06

24 Aug '06

On 8/23/06, Jecel Assumpcao Jr <jecel(a)merlintec.com> wrote: > created for this particular file. Of course, this is very much like > defining Philips screws as "human removable" and Torx screws as not due > to the tools that you can reasonably expect a person to have around the > house. yes, philips = text editor, torx = smalltalk browser and I can't copy-paste a class to discuss it in a mail. > My personal opinion about changing this or that about Smalltalk to make > it more acceptable to most people is that this is a futile task. any task is, to a point :) > Sure you might get some Ruby guys to switch with a scripting syntax, > some company to adopt Squeak if there are native widgets, and so on. Actually I'd appreciate cohererent left/middle/right clicking, readable fonts and exposé on squeak windows... -- Damien Pollet type less, do more

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