Squeak-dev March 2011

squeak-dev@lists.squeakfoundation.org

84 participants
416 discussions

Search Engine for Smalltalk Codes
by Zhe-Xi Lim 03 Apr '11

03 Apr '11

Hi, I am planning to implement a search engine just like Google to ease the searching of smalltalk codes in Squeak. The current available search in Squeak has drawbacks in the sense that it goes by the conventional way of information retrieval. I would like to index all the classes, comments and methods in Squeak image to provide an intelligent, faster and efficient way of searching facility in Squeak. This will also help in promoting codes re-usability in the development of Smalltalk. And then I would like to know if there is a search engine or information retrieval algorithms written in Smalltalk that already made available. If there is such a routine in Smalltalk, could anyone show it to me so that redundant work can be avoided? Thanks. Regards, Zhe-Xi -- View this message in context: http://forum.world.st/Search-Engine-for-Smalltalk-Codes-tp3168673p3168673.h… Sent from the Squeak - Dev mailing list archive at Nabble.com.

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direct manipulation UI construction was Re: [squeak-dev] Squeak Vision ~2000
by David Corking 02 Apr '11

02 Apr '11

Jason, On Tue, Mar 29, 2011, Casey Ransberger wrote: > WRT Morphic and direct user interface construction: this isn't fantasy. You > can actually do this today, as it was one of the original drivers for the > system when it was conceived in Self, as an evolution of Randall Smith's > Smalltalk based Alternate Reality Toolkit (ARK.) I agree with Casey: it is not fantasy. However, with Squeak / Pharo, direct manipulation gets you _instances_ of morphs. To fit the Smalltalk programming paradigm, you need a class and methods (at least a drawOn: method, but probably some event handlers too.) Direct manipulation doesn't quite get you the code (in the way Interface Builder does.) But ... (1) You can probably figure out the code using an inspector and a little arithmetic. (2) Morphic Players get real Smalltalk code behind them that you can see in your changeset browser. (3) Have you seen this yet? http://www.jarober.com/blog/blogView?showComments=true&printTitle=ST_4U_53:… David

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Progress bar design pattern
by Martin Dias 01 Apr '11

01 Apr '11

Hello I have a couple of algorithms and I want to show the progress while they run. I played with the progress bar and it's okay for my needs. The progress bar should be pluggable and decoupled of the algorithms. I am writing to you to ask about good designs for my problem. I hope I haven't expressed the problem in a too abstract way. The design I have in mind is a kind of observer pattern: the serialization algorithm publishes information about the run; a specific listener implements the progress bar for that serialization algorithm, interpreting the information published. Thanks, Martin

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Squeak Oversight Board election self nomination
by Gary Dunn 01 Apr '11

01 Apr '11

I saw a request for more victims -- err, volunteers -- so I'll toss my hat into the ring. What I lack in Squeak proficiency I more than make up for in age and experience. Here is my bio, just a few improvements over the last one. My name is Gary Dunn. I am 61, married with two sons, and live in Honolulu. I have a very demanding full time IT job. My formal training is in music, including a Masters in Composition from the University of Illinois. I enjoy cycling and fixing old cars. I am the leader of a still struggling project called Open Slate, about improving the use of computers in education. More about me at: http://www.facebook.com/garydunn808 http://e9erust.blogspot.com Twitter @garydunn808 http://openslate.org Twitter @openslateproj Many years ago I used a Windows version of Smalltalk at work. My best effort was a GUI front-end to our Unix mail system which we used until we were forced to implement Exchange. I added word wrap to the supplied text editor class. It had a personal address book, forward and reply, and even supported attachments by way of an implementation of uuencode I wrote in Smalltalk. Those were the days! My reason for running for the board is to advocate for the role of Squeak in education. In this regard I am deeply inspired by Alan Kay. I am a big fan of Etoys, but my main interest is in high school and college aged students and in using Squeak as a unified platform for educational software, to include classroom activities, course content delivery, team collaboration, grades management, ... everything related to so-called E-Learning 2.0. (see http://en.wikipedia.org/wiki/E-learning). Where the trend in E-Learning has been towards a web-based design, my preference is for each student to collect and retain locally the information they need, so that they do not rely on continuous Internet access. I do not see E-Learning as a way to teach students to use popular office automation software. I do embrace the concept of social constructionism (see http://en.wikipedia.org/wiki/Social_constructionism_(learning_theory)) and have long pitched the value of small, individually owned, self-made slate computers as tools to foster communication between students. Many of my concepts that were unfamiliar ten years ago are becoming commonplace. Some, like open-source textbooks, have encountered unanticipated resistance. In the long view, I see the future of educational software in Open Cobalt ... take the interaction in WoW and recreate it in a learning context. Powerful stuff. -- Gary Dunn Honolulu

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Board candidacy
by Colin Putney 01 Apr '11

01 Apr '11

Hi all, I'd like to throw my hat in the ring too, so please consider me a candidate in this year's SOB election. For those that don't know me, I'm a long-time member of the Squeak community. I started Squeaking in 2002 and have been active on squeak-dev and other fora ever since. There's probably not a lot of code with my initials in it in the base image, but I've contributed several external packages. I was one of the original developers of Monticello and OmniBrowser, and a long-time user of Seaside. I've used Squeak in several commercial settings, and just recently I've started a company to build web applications in Squeak. That limits my time somewhat, but also gives me incentive to help Squeak grow prosper a as a platform and community. ;-) There two things I'd like to see in the near future: one is continued progress on modularity. This is hard work, but very important. Having a small base image plus a large ecosystem of loadable packages gives us the flexibility to support all the different use-cases that people have for Squeak with a single code base and community. I think it's the *lack* of that flexibility that's led to the fragmentation of the Squeak community across all the different forks that have been created - Croquet, Etoys, Pharo, Scratch and so on. Second, I'd like to see us participate more in the larger community of open-source languages and applications we should be talking about what we've accomplished in non-Smalltalk venues, playing nicely with Linux distributions, battling it out with popular web frameworks, and generally doing cool stuff in public. Last year's and previous oversight boards have made a lot of progress here and I'd like to see it continue. My thanks to everybody who's served on the SOB, particularly those who are running again this year. Colin

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Daily Commit Log
by commits＠source.squeak.org 01 Apr '11

01 Apr '11

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2011-March/004469.html Name: Protocols-nice.35 Ancestors: Protocols-ul.34 Remove FakeClassPool reference because I don't like it. =============================================

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Re: [squeak-dev] The Trunk: Multilingual-nice.139.mcz
by Tobias Pape 31 Mar '11

31 Mar '11

Hi, Am 2011-03-30 um 20:52 schrieb commits(a)source.squeak.org: > nextFromStream: aStream > | character1 | > aStream isBinary ifTrue: [^ aStream basicNext]. > + character1 := aStream basicNext ifNil: [^ nil]. > - character1 := aStream basicNext. > - character1 isNil ifTrue: [^ nil]. > ^ self toSqueak: character1! I don't want to be a nit-picker, but would the method simply reduce to > nextFromStream: aStream > ^ aStream isBinary > ifTrue: [aStream basicNext] > ifFalse: [aStream basicNext > ifNotNil: [:character1 | self toSqueak: character1]]. ? Btw: is it #ifNotNil: or #ifNotNilDo: ? So Long -Tobias

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Killing FakeClassPool and #failedDoit references
by Nicolas Cellier 31 Mar '11

31 Mar '11

FakeClassPool and #failedDoIt are used only as special evaluation results indicating respectively: - there was no selectedClass in the StringHolder and the evaluation did return self - the result of evaluation failed That is a restriction, I can not evaluate (FakeClassPool new) nor (#failedDoit) in a text editor... This restriction is useless, we already have ifFail: clauses when we evaluate the text selection, so why not just use it. So, I implemented #evaluateSelectionAndDo: that will pass the result to aBlock argument in case of success. The only difference is that if you now evaluate (self) in a text editor when there is no selectedClass, - it won't flash the window - it will print nil if you printIt. IMO, we won't loose a very usefull feature. Related stuff is in the inbox. Nicolas

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The Inbox: Tools-nice.304.mcz
by commits＠source.squeak.org 31 Mar '11

31 Mar '11

A new version of Tools was added to project The Inbox: http://source.squeak.org/inbox/Tools-nice.304.mcz ==================== Summary ==================== Name: Tools-nice.304 Author: nice Time: 31 March 2011, 10:13:14.329 pm UUID: 6046b00a-2861-4da3-9dc2-ab9ce2f41496 Ancestors: Tools-nice.303 remove some FakeClassPool and #failedDoit references parce qu'elles le valent bien. =============== Diff against Tools-nice.303 =============== Item was changed: ----- Method: Browser>>doItReceiver (in category 'accessing') ----- doItReceiver "This class's classPool has been jimmied to be the classPool of the class being browsed. A doIt in the code pane will let the user see the value of the class variables." + ^ self selectedClass! - ^ self selectedClass ifNil: [FakeClassPool new]! Item was changed: ----- Method: Inspector>>accept: (in category 'selecting') ----- accept: aString | result | result := self doItReceiver class evaluatorClass new evaluate: (ReadStream on: aString) in: self doItContext to: self doItReceiver notifying: nil "fix this" ifFail: [self changed: #flash. ^ false]. - result == #failedDoit ifTrue: [^ false]. self replaceSelectionValue: result. self changed: #contents. ^ true! Item was changed: ----- Method: MethodHolder>>doItReceiver (in category 'menu') ----- doItReceiver "If there is an instance associated with me, answer it, for true mapping of self. If not, then do what other code-bearing tools do, viz. give access to the class vars." + ^ self selectedClass! - ^ self selectedClass ifNil: [FakeClassPool new]!

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Re: [squeak-dev] The Trunk: Protocols-nice.35.mcz
by Nicolas Cellier 31 Mar '11

31 Mar '11

Sorry, my intention was to publish to inbox, but I had to diff vs trunk first... Anyway, this won't hurt because FakeClassPool is used only to flash the window if return value is self in a doIt when there is no selectedClass... Nicolas 2011/3/31 <commits(a)source.squeak.org>: > Nicolas Cellier uploaded a new version of Protocols to project The Trunk: > http://source.squeak.org/trunk/Protocols-nice.35.mcz > > ==================== Summary ==================== > > Name: Protocols-nice.35 > Author: nice > Time: 31 March 2011, 10:04:18.43 pm > UUID: 0ca34eb6-41e5-422c-8172-164511ce8a52 > Ancestors: Protocols-ul.34 > > Remove FakeClassPool reference because I don't like it. > > =============== Diff against Protocols-ul.34 =============== > > Item was changed: > ----- Method: Lexicon>>doItReceiver (in category 'model glue') ----- > doItReceiver > "This class's classPool has been jimmied to be the classPool of the class being browsed. A doIt in the code pane will let the user see the value of the class variables. Here, if the receiver is affiliated with a specific instance, we give give that primacy" > > + ^ self targetObject ifNil: [self selectedClass]! > - ^ self targetObject ifNil: [self selectedClass ifNil: [FakeClassPool new]]! > > >

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