Squeak-dev August 2005

squeak-dev@lists.squeakfoundation.org

157 participants
234 discussions

[update] new website
by Jason Rogers 02 Aug '05

02 Aug '05

Well, progress on the new website (http://www2.squeak.org:7777) is slow at best. Summer seems to be a hard time to get much work done. Many on the team have been busy with work schedules as well as vacation (I start mine in about 14 hours). Some updates have occurred though: - new screenshots have been added, and some are on the block waiting to be added - a features list has been added & updated - download links have been updated - Goran is working on text for the main page - there have been some efforts to copy information from the old site to the new - all text changes are now being saved to an external file - a VNC connection was added to the server to enable remote debugging and development In addition, Karl Ramberg did some investigation into the versions of SmallWiki and Squeak that we are using. At this point our Squeak image is considered unstable (intermittent lock-ups, snapshot failures, etc.). Also, the version of SmallWiki we are using does not support adding image resources to the website. We are currently looking into options to rectify these errors (eg. a patched SmallWiki from the Seaside folks, running the site in VisualWorks instead of Squeak, abandoning SmallWiki etc.). Hopefully we will have more (and better) news next month. -- Jason Rogers "I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me." Galatians 2:20

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RE: Squeak 3.8 What has happened to "smart tabs" - possible solution
by Ramon Leon 02 Aug '05

02 Aug '05

Thank you, so nice to have indenting back. > -----Original Message----- > From: squeak-dev-bounces(a)lists.squeakfoundation.org > [mailto:squeak-dev-bounces@lists.squeakfoundation.org] On > Behalf Of Andreas Gerdes > Sent: Tuesday, August 02, 2005 8:09 AM > To: The general-purpose Squeak developers list > Subject: Re: Squeak 3.8 What has happened to "smart tabs" - > possible solution > > Marcus Denker schrieb: > > > > > Am 31.07.2005 um 20:09 schrieb Andreas Gerdes: > > > >> Hi all, > >> > >> Automatic indentation in Workspace and Browser seemed to be normal > >> behaviour in 3.7, in 3.8 it does not seem to work at all > (not even in > >> shout and not even with key combinations). > >> Have I missed sth? > >> > > > > Best would be to file a bug report about this (bugs.impara.de). > > > > Marcus > > I reported it to Mantis - my first time, I chose a false > Severity "feature", sorry. > > Meanwhile, I found the following: > In 3.7 > ParagraphEditor>dispatchOnCharacter:with: > [...] > char asciiValue = 13 ifTrue: [ > ^ sensor controlKeyPressed > ifTrue: [self normalCharacter: typeAheadStream] > ifFalse: [self crWithIndent: typeAheadStream]]. > [...] > > obviously someone has changed the logic here: if no > controlKey pressed, behave, as if it was pressed! > This results in automatic indenting. > > In 3.8 it has been "corrected": > > char asciiValue = 13 ifTrue: [ > ^ sensor controlKeyPressed > ifTrue: [self crWithIndent: typeAheadStream] > ifFalse: [self normalCharacter: typeAheadStream]]. > > This results in "indentation only with key combination" > But alt/cmd + cr does not work (at least under windows...) > > So anyone who wants automatic indenting again, just has to > change two lines of code, but: could this be called a fix? > (How to proceed on Mantis?) > > Andreas > > > > >

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REMINDER: Squeak Chat Wednesday August 3rd 17:00 GMT
by Ken Causey 02 Aug '05

02 Aug '05

Just a reminder that the next Squeak Chat will take place between 17:00 (5 PM) and 21:00 (9 PM) GMT Wednesday August 3rd, 2005. 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 21:00 (09:00 PM) GMT Sunday August 07, 2005 01:00 (01:00 AM) GMT Friday August 12, 2005 05:00 (05:00 AM) GMT Tuesday August 16, 2005 09:00 (09:00 AM) GMT Saturday August 20, 2005 13:00 (01:00 PM) GMT Wednesday August 24, 2005 17:00 (05:00 PM) GMT Sunday August 28, 2005 21:00 (09:00 PM) GMT Thursday September 01, 2005

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set and stream
by Houssam Fakih 02 Aug '05

02 Aug '05

Hello, Im trying to concatenate many collections (sets) together. I learn (from becks book) that the use of stream is efficient so I try the following code write _ WriteStream on: Set new. write nextPutAll: (Set with:4 with:5) write contents but it doesnt work because Set isnt a member of a SequenceableCollection then it doesnt understand the message : replaceFrom:to:with:startingAt: Finally I try a code as: write _ WriteStream on: {}. write nextPutAll: (Set with:4 with:5) write contents asSet Im happy with the result but I need just to know if there is another pattern to use Set and Stream. Thanks, Houssam ____ "Le paradis touche les pieds des mères..." >>> http://csl.ensm-douai.fr/fakih

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[ANN] BidirectionalLinkedList
by Matej Kosik 02 Aug '05

02 Aug '05

Hi, I have submitted to squeakmap new package: BidirectionalLinkedList. It is what it says. Its implementation enables you to effectively add and remove elements to/from the collection. It might be useful in those cases when LinkedList would be usable. Details are here: http://altair.dcs.elf.stuba.sk/wiki/Kosik/BidirectionalLinkedList Does not collide with anything else. Test-case (BidirectionalLinkedListTest) is included. Regards. -- mk

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Re: [ANN] Fun programming with your kids
by Ed Boyce 02 Aug '05

02 Aug '05

Stephane, I just purchased your book, which will arrive on Monday, for introducing my almost-9 y.o. daughter Quincy to more formal experience in Squeak than she's had so far. Quincy is an academically accelerated homeschooler who has used computers (with various operating systems) since the age of 1. Quincy has played around with EToys and Croquet but not with any organized sustained curriculum plan, and tends to have high visual excitement and creativity expectations from software. I will try using your Bots, Inc. book, along with BJ Conn/Kim Rose "Powerful Ideas in the Classroom" book as texts for her first "course" in computer science. We'll let you know how it goes. Additionally, I'm going to try to incorporate the defunct MathMorphs material into her Math curriculum. I'm wondering whether you know of anyone else who may have a keen interest in reviving that project? Best Regards, Ed Boyce ----------------------------------------------------- Ed Boyce Education and Outreach Writer/Editor Coordinator, Visualize Education Virtual Institute Engaging People in CyberInfrastructure (EPIC) Program http://www.eotepic.org Boston University Center for Computational Science 3 Cummington Street, 5th Floor Boston, Massachusetts 02215 413-245-3997 edboyce(a)bu.edu ------------------------------------------------------ stéphane ducasse said: > Hi > > If you are a parent, an educator or a programmer having kids this is > for you! After 4 years of work, my new book "Squeak: Learn > programming with Robots" will be out soon > > http://www.amazon.com/exec/obidos/tg/detail/-/1590594916/ > qid=1117218524/sr=1-1/ref=sr_1_1/002-5642974-5143261?v=glance&s=books > > http://smallwiki.unibe.ch/botsinc/ > With Bots Inc you will learn how to program robots in an interactive > environment. Bots Inc proposes three teaching approaches: direct > command of robots, scripting robots and programming robots. The book > contains 24 chapters going step by step over topics with a lot of > examples. Bots Inc is fun but it is not a toy, it teaches you 100% > real programming in Smalltalk: a pure object-oriented programming > language that has been copied by Java. Bots Inc is built on top of > the rich open-source multimedia Squeak environment that you can also > discover. > > My goal is to explain key elementary programming concepts (such as > loops, abstraction, composition, and conditionals) to novices of all > ages. I believe that learning by experimenting and solving problems > with fun is central to human knowledge acquisition. Therefore, I have > presented programming concepts through simple but not trivial > problems such as drawing golden rectangles or simulating animal > behavior. The ideal reader I have in mind is an individual who wants > to have fun programming. This person may be a teenager or an adult, a > schoolteacher, or somebody teaching programming to children in some > other organization. Such an individual does not have to be fluent in > programming in any language. As a father of two young boys I also > wrote this book for all the parents that want to have fun programming > with their kids in a powerful interactive environment. Programming in > Smalltalk is an interactive, fun but deep experience. > > Testimonies > > "I am using the version of the book on your web site to teach my > oldest daughter Becca some programming. She absolutely loves it. We > are doing the Bot graphics right. My other kids are showing interest > as well. My Fall semester schedule leaves me with almost no time free > but in the Spring I hope to bring Squeak and your book to our > elementary school's "gifted" program." C. David Shaffer > > "I'm using the Bot Lab environment for three years and found it > really valuable in teaching computer science concepts for a young > audience (and even less young !). The bots commanded through balloon > (as in comic strips) is a very nice introduction for young children, > and when this aspect is well understood, you can use the Bot > Workspace to teach the notion of script, a first step in programming > languages. The Micro Browser allows children to add new behavior for > their bots, and have fun with their creation. This three-layers tool > - Balloon, Micro Workspace, Micro Browser - offers to the teacher a > fun way to introduce gently the basis of object-oriented programming > concepts. With Bots Inc, learning is playing ! ;-)" Samir Saidani - > University of Caen - France > > "I recently started a course with 7th-graders (age about 13 years) > with Stephane's book --- they love it. They all know about syntactic > issues from maths --- in a way they know that an expression in a > formal language must be well formed. So they easily grasp the fact > such as "there must be a colon after the message-name if an argument > follows". Of cause they don't really read the error-messages, they > just see "there must be some error" and they remember the simple > rules. Don't underestimate Smalltalk --- it's easy understandable > because it has a simple and straight-forward design." Klaus Fuller - > Germany > > Have fun...please distribute > > Stef > > > http://www.iam.unibe.ch/~ducasse/ > "if you knew today was your last day on earth, what would you > do different? ... especially if, by doing something different, > today might not be your last day on earth" Calvin&Hobbes > > > > > >

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[Q] Possible bug in Squeak3.9a-6678.image, wish confirmation
by Lic. Edgar J. De Cleene 02 Aug '05

02 Aug '05

I found waitForDisconnectionUntil seems removed in Socket. How affect functioning. Open a listener and a badge in two different computers on the same LAN. See what happened when you try to send a Ellipse from one machine to the other. Before I report on Mantis , wish confirm someone is seeing this one. As this code is called in closeAndDestroy: , others users of Socket could be affected also. Edgar ___________________________________________________________ 1GB gratis, Antivirus y Antispam Correo Yahoo!, el mejor correo web del mundo http://correo.yahoo.com.ar

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Re: question: interpretation of TimeProfile
by Chris Muller 01 Aug '05

01 Aug '05

> Does the red line in the gif mean that 10% of the time is spent in the > housekeeping of OrderedCollection>>do: or does this include the time > spent in evaluating aBlock value:? It includes execution of the entire method, including time spent evaluating aBlock value:. > I guess the first is true as the end of the list states in the > **Leaves** section that an overall 13.9% are spent in do:. I've never been quite sure what the **Leaves** section means. > Put more general: I didn't find a detailed description on the swiki on > how to interpret the results of the time profile. > > Can someone please provide a pointer? My understanding is that, during profiling, a snapshot is taken of the stack every few milliseconds. Whatever time has passed since the last snapshot is added to each frame in the current snapshot. That's why you see 100% in the root-frame because it was present in every snapshot. - Chris

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RE: Squeak 3.8 What has happened to "smart tabs"
by Ramon Leon 01 Aug '05

01 Aug '05

> -----Original Message----- > From: squeak-dev-bounces(a)lists.squeakfoundation.org > [mailto:squeak-dev-bounces@lists.squeakfoundation.org] On > Behalf Of Andreas Gerdes > Sent: Sunday, July 31, 2005 11:09 AM > To: The general-purpose Squeak developers list > Subject: Squeak 3.8 What has happened to "smart tabs" > > Hi all, > > Automatic indentation in Workspace and Browser seemed to be > normal behaviour in 3.7, in 3.8 it does not seem to work at > all (not even in shout and not even with key combinations). > Have I missed sth? > > Andreas > > I miss this too, anyone know what happened or where to re-enable that? Ramon

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United States Patent Application - Adding and removing white space from a document
by Frank Caggiano 01 Aug '05

01 Aug '05

This would be funny if it wasn't true. Microsoft has been flooding the US Patent office over the past few years with upwards of 2000 (yes two thousand!) new applications per YEAR. This year they are on pace to file 3000 new patent applications. This one (removing or adding white space to a computer document) is just one of the 3000. They all are about as innovative as this one. Here's the abstract: A method, a computer system and a computer-readable medium having instructions for a processor stored thereon are provided for growing a page on a display. Input indicating a first position or designation of content on a page of an electronic document and an amount of white space to be inserted in the page is received. Responsive to the received input, at least some of the content of the page of the electronic document is moved to insert white space. The moving starts from a point based on the first position. The portion of the content being moved is moved a distance based on the amount of white space indicated in the received input. The page is grown by an amount based on the amount of the white space indicated in the received input. A respective size of other pages of the electronic document remains unchanged. Also provided are a method, a computer system and a computer-readable medium having instructions for a processor stored thereon for deleting a portion of a page and reducing a size of the page. Here's the complete application (sorry to use tinyurl but the patent office web site loves huge and I mean hugh urls, this one was originally 203 chars) http://tinyurl.com/e4pov ------------------------ Frank Caggiano frankcag at crystal-objects dot com http://www.crystal-objects.com The best education for the best is the best education for all. Robert Maynard Hutchins

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