Beginners January 2008

beginners@lists.squeakfoundation.org

63 participants
51 discussions

Browser Preferences
by david.briant＠ubs.com 29 Jan '08

29 Jan '08

Appols in advance for the very simple question. How do I turn off the pretty print when I accept a method in a system browser? Many thx, -- DB Visit our website at http://www.ubs.com This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mails are not encrypted and cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments. UBS Limited is a company registered in England & Wales under company number 2035362, whose registered office is at 1 Finsbury Avenue, London, EC2M 2PP, United Kingdom. UBS AG (London Branch) is registered as a branch of a foreign company under number BR004507, whose registered office is at 1 Finsbury Avenue, London, EC2M 2PP, United Kingdom. UBS Clearing and Execution Services Limited is a company registered in England & Wales under company number 03123037, whose registered office is at 1 Finsbury Avenue, London, EC2M 2PP, United Kingdom.

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40K limit for posts on beginners
by Herbert König 28 Jan '08

28 Jan '08

Hi, as mailman-owner doesn't work I send this to the list. Squeak beginners list has a 40k limit for posts, while Squeak dev has a 100k limit. I don't believe that beginners topics can be discussed twice as terse as the topics in dev :-)) So, if there is no technical reason, I propose to also set the limit to 100k. Secondly: If a posting is too big the list generates an "awaits approval" reply which says the poster will be notified on disapproval or the message will be sent to the list. When after a day I went to the cancel link I was told the posting had been dealt with by the admin but neither found it on the list nor got a notification of the moderators decision. This is hopefully easy to repair especially beginners might get confused. Anyway, big thanks for keeping the service running!! Cheers Herbert mailto:herbertkoenig@gmx.net

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Programatically keep image up to date
by itsme213 28 Jan '08

28 Jan '08

What is/are the recommended way/s to retaining my image customizations (mostly MC packages loaded, but ideally other environment customizations like preferences, keyboard shortcuts, preferred browsers, etc.) when I replace my image? I am currently thinking of having a MC package with MyImage class>>initialize self customizeImage Where should I look when implementing #customizeImage? Installer? LPF? Elsewhere? Thanks - Sophie

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phone calls made ...
by Dave Raymer 28 Jan '08

28 Jan '08

Fr. Jim, DJ -- I've left a message for Alan Jackson and am waiting for the exterminator to get back to me with a time when the technician can come out and take a look at our critter situation and give us an idea on what we need to do to get rid of them and what they are. In His Name, Dave -- A man's greatest treasure is his wife, she is a gift from the Lord - Proverbs 18:22

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Re[Newbies] gular Expression Question
by pbohuch 27 Jan '08

27 Jan '08

Hi everyone, I am new to smalltalk and have been having trouble using regular expressions. I have installed Vassili Bykov’s RegEx package using the Monticello Browser. Here is what my issue is. I have a test string that I want to "push" into an OrderedCollection. testString := 'this is a test'. testCollection := '(^\s*)|(\s)|\w+' asRegex matchesIn: testString. Now I can inspect this in a workspace and it shows me an ordered collection of all the elements of the string. However when I attempt to use this in a method, and call the method from a TestCase, I get an infinite loop. Stepping through the method I found that the "asRegex" portion of the statement above works correctly. Where is seems to be crashing is in the "matchesIn:" method. Can anyone please let me know what I am missing? The exact statements in my test case are: | myTokens myString| self halt. myTokens := OrderedCollection new. myString := 'this is a test'. myTokens := '(^\s*)|(\s)|\w+' asRegex matchesIn: myString. self shouldnt: [myTokens isEmpty]. If you step through this method in the Test Runner you will see it never makes it through the matchesIn: method. Am I forgetting to instantiate something? -- View this message in context: http://www.nabble.com/Regular-Expression-Question-tp15068867p15068867.html Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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[Newbies] Re:is* specific class membership tests - Beginners Digest, Vol 21, Issue 27
by Richard Karpinski 26 Jan '08

26 Jan '08

Do I understand correctly that the main reason to use isMorph rather than is: Morph is that the former is faster. And is the reason to prefer is: Morph is that it is more robust against required changes in the code to accommodate other specific changes? Wouldn't it be straightforward to use the is: * generic form and generate an automatic revision to the more specific form while providing a way to switch back whenever needed? Would such a system solve the problem discussed? Offhand, optimizations for efficiency like this seem to me to be pretty easy to arrange and to undo with fairly simple "compilers". There are also tools which make creating such compilers quite easy. Here I think of a transformational attribute grammar (TAG) compiler which can create a working prototype language XX compiler in perhaps five times the volume of its Backus-Naur Form syntax. Richard Karpinski, Nitpicker dick(a)cfcl.com 148 Sequoia Circle, Santa Rosa, CA 95401 Home +1 707-546-6760 Cell +1 707-228-9716 http://cfcl.com/twiki/bin/view/Friends/Karpinski/WebHome ps Put (or leave) "nitpicker" in the subject line to get past my spam filters. On 2008, Jan 25, , at 4:00, Michael Rueger <m.rueger(a)acm.org> wrote: >> is: Class >> ^(self class) inheritsFrom: Class > > isKindOf: already exists. > >> which would never have to be overridden? Obviously there are some is* >> methods that server a larger purpose but isn't >> more...polymorphic...to say > > is* is much much faster > > But, as I said, using is* is a sign of a design problem. If you use > is* > you are hardwiring the knowledge about certain classes into your > architecture.

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One click setup for 3.9 [win]
by Xinyu Liu 25 Jan '08

25 Jan '08

Hi people, I create a one click setup for newbies. It will do the following things after run: 1. download SqueakVM from ftp.squeak.org 2. download 3.9 images, soruces ftp.squeak.org 3. extract all things 4. create shortcut in desktop and program menu. I found the download process may cost some time, because there is only one download session. The installer can work only in Windows. It can be get from: http://liuxinyu95.googlepages.com/squeak3.9_win_installer.exe I created it with NullSoft installation system scripts. I shared the script code here: http://liuxinyu95.googlepages.com/squeak3.9_win_install.nsi You can change it when 3.9 package updates. Have fun with 3.9! Best regards. Yours, Liu

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is* methods
by Blake 25 Jan '08

25 Jan '08

Hello, all: While wandering through the (hefty) base Object class, I came across the is* methods, which I had of course used many times. They're very convenient. But are they, well, stupid? Something like 40 methods that all return false and are overridden by one class somewhere in the hierarchy? Wouldn't their purpose be better served by a single method, like: is: Class ^(self class) inheritsFrom: Class which would never have to be overridden? Obviously there are some is* methods that server a larger purpose but isn't more...polymorphic...to say is: String is: Morph is: SomeNewClass rather than isString isMorph and then add "isSomeNewClass" when you need it? ===Blake===

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Can I use SQL statements in squeak?
by LoneHunter01 24 Jan '08

24 Jan '08

I just need to know how to access a database and make minor changes. If someone could point me to a tutorial or really good site that covers this aspect, it would be very helpful. Thanks. -- View this message in context: http://www.nabble.com/Can-I-use-SQL-statements-in-squeak--tp15063753p150637… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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String asURI contentStream - troubles
by Petr Fischer 24 Jan '08

24 Jan '08

Hi, I need to get stream from general (user entered) URI. 1) 'file:///Users/pf/Documents' asURI contentStream - this works (instance of StandardFileStream) 2) 'http://www.seznam.cz/' asURI contentStream - error (MessageNotUnderstood: HTTPClient class>>contentStreamForURI:) I need one way (method) for all types of URIs (http, file, ftp...). Any ideas? Thanks, pf

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Beginners January 2008