Squeak-dev April 2007

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151 participants
201 discussions

Held an OLPC laptop today!
by Milan Zimmermann 01 May '07

01 May '07

Bert Freudenberg brought the OLPC laptop to dinner before Smalltalk Solutions 2007 in Toronto. That gave me and about 20 others at the dinner to touch and play with the laptop for the first time. We had some fun opening it, I think the 6th person suceeded. I have to say, it is every bit as beautiful as in the pictures I have seen and more. There are some unusual buttons both on the keyboard and on the laptop and the UI is a bit different from the Qemu version I played with last. Everyone had a chance to look at it or play, Vicki Ross created her first eToy animation in about 5 minutes. EToys feel almost the same speed as on and Athlon 2400 on which I am writing this which is great. One thing I realized trying to build a quick presentation, is that we really need a different interface then the mouse pad or mouse. This is beside the point and not the OLPC fault, the mouse pad works pretty well, but really,mouse is an OK interface for *navigation* and copy/paste of text, but not very good for *manipulating* and building things - and eToys are very much about building. I wish someone could think of a better device after all those years... perhaps something that one can hold in hand, not flat, maybe similar to joystick, or sort of a piece of squishable/moldeable piece of clay-like material, well, not sure... I believe we will have a chance to see the laptop on display at the Squeak booth during the conference. Thanks Bert for bringing it over, it really is even nicer then I thought! Milan

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Re: [Vm-dev] search order for plugins
by subbukk 30 Apr '07

30 Apr '07

On Friday 27 April 2007 8:18 pm, Ian Piumarta wrote: > On Apr 26, 2007, at 11:53 PM, subbukk wrote: > > There is the command line override to take care of special cases. > > Which just sets the same internal variable as is set by > SQUEAK_PLUGIN_PATH. squeakPlugins is set from SQUEAK_PLUGINS and overridden by -plugins, while SQUEAK_PLUGIN_PATH is tried after that. I am on svn 1638. Perhaps the code is still in flux? > > libpath = -plugin option if given followed by dirname of argv[0] > > There is no guarantee that argv[0] contains anything beyond the word > 'squeak'. I am not sure about MAC, but Unix specs require execv() calls to pass pathnames in argv[0]. Bert pointed out that this could be a link (hard or sym). But composed properly, vm will not need any link. A little bit of background behind my suggestions: On my Kubuntu system, Squeak (v3.7-7) has two launcher scripts - startsqueak and npsqueakrun - and an annoying dependency on zenity (I use KDE). In hacking together an unified launcher, I noticed vm startup code used a lot of logic that were better handled in launcher where portability errors can easily be fixed. The vm shouldnt have to guess and poke around to find files. The attached launcher, still a work in progress, works both on console and in X11, plays nicely with both GNOME and KDE. Being new to vm code, I could be way off the mark. Regards .. Subbu

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Re: [Newbies] Display artifacts in comments/desc.
by subbukk 30 Apr '07

30 Apr '07

On Monday 30 April 2007 7:12 pm, Edgar J. De Cleene wrote: > El 4/30/07 10:22 AM, "subbukk" <subbukk(a)gmail.com> escribió: > > Hi, > > > > I see some artifacts (like []) displayed in comments and descriptions in > > Squeak (3.7-7 vm on Linux, 3.8 image and SqueakV39.sources). I suspect > > the '\r' line terminator in the *.sources file could be causing it. > > > > Is this a bug? > > > > TIA .. Subbu > > I think what could be eliminated if you do Smalltalk removeAllLineFeeds. I did this and it reported 44806 methods were stripped of LFs, but I see two [] glyphs instead of it. The method seems to replace CR with CRLF which makes it worse. Strangely, 'hello world' displayAt: 100@100. shows up correctly as two line text. So why does the [] appear the browser? Regards .. Subbu

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[INFO] How to manage successfully open source project
by Hilaire Fernandes 30 Apr '07

30 Apr '07

In this book, from one of the Subversion developer, there are interesting tips for the Squeak community http://producingoss.com/html-chunk/ Hilaire

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Interval new feature
by nicolas cellier 30 Apr '07

30 Apr '07

After reviewing some of Interval bugs, I discovered this one: (10 to: 12) at: 1.5. Will answer 10.5. So maybe this is not a bug but a funny undocumented feature. Anyone ever thought of using such feature?

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RE: Any reason for assigning block parameter in inject:into:
by J J 30 Apr '07

30 Apr '07

>From: "Alan Lovejoy" <squeak-dev.sourcery(a)forum-mail.net> >Reply-To: The general-purpose Squeak developers >list<squeak-dev(a)lists.squeakfoundation.org> >To: "'The general-purpose Squeak developers >list'"<squeak-dev(a)lists.squeakfoundation.org> >Subject: RE: Any reason for assigning block parameter in inject:into: >Date: Sun, 29 Apr 2007 17:47:04 -0700 > >I concur. The restriction on assignment to arguments simply creates an >unnecessary semantic distinction between arguments and other variables, and >so adds complexity to the denotational semantics of Smalltalk syntax. It's >not as bad as Java's distinction between objects and primitive values, but >it's a language design flaw of the same sort. But I thought lots of people here *wanted* optional read-only values, no? If those are added as I have seen requested several times then how will we distinguish *those*? With the view given by most here, it does seem quite arbitrary. But with the view that "the system wants that for efficiency" (even though it seems that isn't the case in at least Squeak), it is actually the expected behavior. _________________________________________________________________ Download Messenger. Join the im Initiative. Help make a difference today. http://im.live.com/messenger/im/home/?source=TAGHM_APR07

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Re: Any reason for assigning block parameter in inject:into:
by tim Rowledge 30 Apr '07

30 Apr '07

Clearly I'm going to have to just content myself with disagreeing. I think you're all quite, quite mad..... tim -- tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim Useful random insult:- Moves his lips to pretend he's reading.

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Squeak freezed again
by Florian Minjat 29 Apr '07

29 Apr '07

Hi, Today my squeak dev image freezed again. I am running a 3.9 image with 3.9-8 #5 squeak VM (from squeak -version) and seaside 2.7. Top shows 99.9% of the cpu taken by squeak, and my seaside website is unresponsive. But I could access the image with the VNC server. Process Explorer shows that the UI process is taking all the processor. I profiled it to see and get this result : 100.0% Project class>>spawnNewProcess 99.1% PasteUpMorph>>doOneCycle 99.1% WorldState>>doOneCycleFor: 99.1% WorldState>>interCyclePause: 99.1% Delay>wait 99.0% primitives Any idea on how to stop this process to eat all the proc ? I just saved and restarted the image. But nothing changed... Thanks in advance, Florian

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Font rendering strategy
by stephane ducasse 29 Apr '07

29 Apr '07

Hi guys I want to thanks andy and juan for their work! Now I need your brain and knowledge. I'm totally ignorant of font problems/challenges but How can we get the best of both works? What are the exact pros and cons in terms of: - font - size - memory consumption It seems that juan work is excellent for OS independence. Stef

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New Cryptography Team Release on SqueakMap CTeam-1.01
by Ron Teitelbaum 29 Apr '07

29 Apr '07

Hello All, Rob Withers found a critical error in RSA Signatures that required that we release a new version to support SMIME. We released a new version of the Cryptography Team code on SqueakMap - CTeam-1.01. If you are using our code you are encouraged to upgrade. The current package for SMIME is located in a separated package in the Cryptography Repository on www.squeakSource.com. Thanks, Ron Teitelbaum Squeak Cryptography Team Leader

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