Squeak-dev January 2008

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Luciano Notarfrancesco Signed the Agreement
by Ron Teitelbaum 19 Jan '08

19 Jan '08

Hello all, Good News! We just received the singed agreement from Luciano Notarfrancesco. Ron Teitelbaum

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Simple Image Based Persistence in Squeak
by Janko Mivšek 19 Jan '08

19 Jan '08

In the case you didn' yet read Ramon Leon post on his blog: http://onsmalltalk.com/programming/smalltalk/simple-image-based-persistence… From the post: "It’s a mistake to assume every application needs a relational database, or even a proper database at all. It’s all too common for developers to wield a relational database as a golden hammer that solves all problems, but for many applications they introduce a level of complexity that can making development feel like wading through a pond full of molasses where you spend much of your time trying to keep the database schema and the object schema in sync. It kills both productivity and fun, and god dammit, programming should be fun! ... It shouldn’t come as a surprise that one can take a single step up the complexity ladder, and build simple applications that aren’t ACID compliant, don’t support transactions, and manage to successfully run most small businesses BETTER than Word and Excel while purposely not taking a further step and moving up to a real database which would introduce a level of complexity that might blow the budget and make the app infeasible. No object relational mapping layer (not even Rails and ActiveRecord) can match the simplicity, performance, and speed of development one can get just using plain old objects that are kept in memory all the time" Image as a database is my way of running my web apps for four years already, and I make my living of them, so I can just agree and confirm Ramon here! Janko -- Janko Mivšek AIDA/Web Smalltalk Web Application Server http://www.aidaweb.si

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Handling keyboard input on unix when locale set to utf-8
by danil osipchuk 18 Jan '08

18 Jan '08

Hello, all. Many modern linux distros now use utf-8 locale as a default setting. Also stock unix VM never seemed to handle unicode keyboard input under this locale. Are there any plans to do it properly or linux users are supposed to fix the VM themselves (by beating heads against of this thread for example: http://www.nabble.com/Unix-UTF8-input-td11050488.html )? May be anyone has got a 'proper' VM already - it is hard to believe that such drawback is not fixed long time ago. cheers, Danil

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DeltaStreams, Monticello
by itsme213 18 Jan '08

18 Jan '08

I just came across the following which could have some useful things for DeltaStreams and/or Monticello. It is from a dynamic reflective pure-oo language project open-sourced in Eclipse. http://www.ceteva.com/XMF/Programmers%20Guide/Teamworking/Teamworking.html - Sophie (That page is from a bigger set at http://www.ceteva.com/XMF/toc.html )

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(Integer readFrom: 'abc' readStream) = 0
by Zulq Alam 17 Jan '08

17 Jan '08

I was surprised to find that Integer class>>#readFrom: returns 0 when it doesn't find an integer. So, (Integer readFrom: 'abc' readStream) = 0 is true. This seems wrong to me although it's consistent with the method comment and VisualWorks. I was expecting an error. What's the reasoning behind this? I'm looking for the Smalltalk equivalent of: try { Integer.parseInt("abc"); } catch (NumberFormatException e) { // do something } I found SqNumberParser which appears to be what I want: (SqNumberParser on: 'abc') nextIntegerBase: 10 ifFail: [self doSomething] This works but, is it the right / good way? Does the Sq prefix mean this parser is expecting Squeak format numbers? If so, what is this format? Also, how is this done in other smalltalks? Thanks, Zulq.

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call for Squeak leadership candidates
by Craig Latta 16 Jan '08

16 Jan '08

Hi-- Apropos of Ron's recent voter registration message, it's that time again... if you'd like to be a candidate for the next annual term of the Squeak leadership, please let the community know! thanks again, -C -- Craig Latta improvisational musical informaticist www.netjam.org Smalltalkers do: [:it | All with: Class, (And love: it)]

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Re:Simple Image Based Persistence in Squeak
by stephan＠stack.nl 16 Jan '08

16 Jan '08

Blake wrote: > But then do what with it? It's not like reporting is (necessarily) a > trivial thing. I've done: - export tab-separated to Excel. - export to rtf for Word. - export to LaTeX (Still waiting for XSL-FO to catch up). - create a PDF (I'm not too happy with the current PDF tooling, though). - use a BalloonCanvas to create pretty pictures and use them in Seaside. - make dependency diagrams with mondrian and dotty. Stephan

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Reminder - Check your Squeak People Email or Sign up to vote
by Ron Teitelbaum 16 Jan '08

16 Jan '08

Hi all, I thought I'd send out a reminder about the Squeak Foundation Board Elections. If you would like to vote in the upcoming Squeak Foundation Elections, you should check your email address on Squeak People. http://people.squeakfoundation.org/ . Please make sure you have access to your squeak people account, check that you included your name and that the supplied email is correct. If you need help accessing your account please let me know. You will need access to the email supplied to receive a ballot. If you have not signed up for a squeak people account and you would like to vote in the election please sign up and then encourage people you know to certify you. Only Squeak People members that have a certification of Apprentice or higher have supplied a real name and a valid email will receive a ballot to vote in the election. This is only a reminder about Squeak People. We have not set the voting schedule. Please stay informed, get involved in the upcoming election and remember to please vote. Also I'd like to express our thanks to Ken Causey for helping us get the tools we needed to better run the election this year. Thanks Ken! Happy Squeaking, Ron Teitelbaum Squeak Elections Team Member

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License questions.
by Michael van der Gulik 16 Jan '08

16 Jan '08

Hi. Could I get my understanding of the licensing situation verified please: Squeak 1.1 was originally released under the Squeak license. It has since been relicensed under the Apache 2.0 license. All changes made since Squeak 1.1 were originally under the Squeak license. All changes made by people who have signed[1] the license agreement [2] are now under the MIT license. All changes made by people who have /not/ signed[3] the license agreement remain under the Squeak license. So, does this mean that all of Squeak, except the contributions by people who haven't signed the license agreement, is now (as of Squeak 3.10) released under the Apache 2.0 license? Are class definitions and documentation changes also taken into account when working out who the contributers are? My understanding of Squeak history is that Squeak was born in Apple, then was released and became an open source project, then the authors were hired by Disney and made more modifications, then left Disney to make Squeak what it is today. Were the changes made at Disney released under the Squeak license? Does Disney own the changes made, or do the individual contributers working for Disney own the changes? Are the changes made at Disney now released under MIT? How do you work out what changes were made at Disney (in the case that they are problematic)? Could I take a calculated risk and state that my work is hereby released under the Apache 2.0 license, and that anybody who hasn't signed the distribution agreement doesn't really care anyway? What is the worst case scenario here? Would a prior contributer sue me because I've stolen their Squeak-L based work and released it under the Apache 2.0 license? [1] http://www.netjam.org/squeak/contributors/signatories [2] http://netjam.org/squeak/SqueakDistributionAgreement.pdf [3] http://www.netjam.org/squeak/contributors/missingSignatories I'm asking this because I'm about to embark on some significant changes to the classes in Kernel and Collections for my SecureSqueak project. I want the end result of this work to be released under the Apache 2.0 license, if possible. These changes are scoped to Kernel, Collections and a handful of other classes. Gulik. -- http://people.squeakfoundation.org/person/mikevdg http://gulik.pbwiki.com/

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#shutDown: and OS events
by Brian Brown 16 Jan '08

16 Jan '08

Hello list, Is there a mechanism for Squeak to handle an OS request to exit, such as someone rebooting their machine? It seems that the #shutDown: machinery would not be triggered in that case and any image changes would be lost in those cases. I understand that those changed items would be in the changes file; might it be possible to automatically recover them if desired for some subset of changes? Any advice would be helpful! - Brian

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