November 2010 - Pharo-users

could not search contents at http://book.pharo-project.org
by Bernardo Ezequiel Contreras Nov. 19, 2010

Nov. 19, 2010

Hi All, Description: Could not search contents at http://book.pharo-project.org. I would like to search some expression in the contents of the book. Steps to reproduce: * goto to http://book.pharo-project.org * click on main image * add any string on search contents and press Enter Actual Result: Seaside Walkback Error: subscript is out of bounds: 8218Expected Result: a list of results that matches your input string Thanks,

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Re: [Pharo-users] Private methods
by Simon Denier Nov. 19, 2010

Nov. 19, 2010

On 3 nov. 2010, at 05:47, Igor Stasenko wrote: > Coding in smalltalk for last 4 years, i seen no problems with having > no run-time, no compile-time , but instead a coder-time private methods check. > > As to me, the benefits of having such constraints in language are exaggerated. Indeed, for such rules, I think Lint should be the platform of choice (using the parse tree search if necessary). > > On 3 November 2010 01:34, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: >> I removed that in pharo since it was a hack working only on squeak and not even well because what happens if >> I do an alias to self >> >> obj := self. >> >> obj pvt.... >> >> or with passing a ref to me around and client invoke the method. >> >> aA foo: self >> >> A>>foo: aA >> >> aA pvt >> >> For people that want to read a nice paper on private methods I suggest: >> Encapsulation in a dynamic language by nathanael scharly >> => only self send (using self keywords could be potential private call) I like the idea and the reasoning behind. >> >> and freezable traits to a certain extent >> >> >> Stef >> >>> >>> Hi >>> >>> Am 2010-11-02 um 10:24 schrieb eMko: >>>> There is a convention of naming private methods - instead of naming it just >>>> "methodName" you can use "myMethodName". >>>> >>>> I have seen this convention in some tutorials at squeak wiki but have not >>>> seen a system class in squeak or pharo which uses this. But I do in my >>>> programs. A different naming convention of private/protected methods is >>>> quite common in other programming or scripting languages like Perl, Python, >>>> PHP ... >>> >>> Incidentally, if you name your method "pvtMethodName" it is expected that >>> this message is only sent to self. >>> >>> So if you have a class >>> "--" >>> Object subclass: #Foobar >>> instanceVariableNames: '' >>> classVariableNames: '' >>> poolDictionaries: '' >>> category: 'TMP' >>> "--" >>> >>> with >>> Foobar>>pvtTest >>> >>> Transcript show: 'Foobar'. >>> >>> and then do >>> >>> | a | >>> a := Foobar new. >>> a pvtTest. >>> >>> you'll end up with the Compiler telling you >>> that âPrivate messages may only be sent to selfâ. >>> >>> However, according to Smalltalk conventions, you should >>> use these âprivateâ methods scarcely. In fact, it is easy to >>> circumvent this check: >>> >>> | a | >>> a := Foobar new. >>> a perform: #pvtTest a Foobar >>> >>> works easily, so don't rely on the privateness. However, >>> whatever one sends to your object is up to her/him and >>> she/he is responsible for the outcome ;) >>> >>> HTH >>> >>> So Long, >>> -Tobias >>> _______________________________________________ >>> Pharo-users mailing list >>> Pharo-users(a)lists.gforge.inria.fr >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >> >> >> _______________________________________________ >> Pharo-users mailing list >> Pharo-users(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >> > > > > -- > Best regards, > Igor Stasenko AKA sig. > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users -- Simon

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Bogus
by Jeff Gray Nov. 18, 2010

Nov. 18, 2010

What is the String>>isBogus method for? -- View this message in context: http://forum.world.st/Bogus-tp3037199p3037199.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Latest windows CogVM + Pharo 1.1 - fail to load system fonts
by Stanislav Paskalev Nov. 18, 2010

Nov. 18, 2010

Hi, No errors are reported or anything, it's just that the fonts list is not populated with CogVM. Using the same image and the pharo 4.0.2 win32 vm - it's filled ok. Where do we report bugs against CogVM ? Best regards, Stanislav Paskalev

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Classes of same name
by Jeff Gray Nov. 18, 2010

Nov. 18, 2010

Sorry for the noob questions... What do you do if you want to import 2 discreet packages into your image and each contains a class of the same name? -- View this message in context: http://forum.world.st/Classes-of-same-name-tp3048058p3048058.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Solution to Can't Quit Pharo Found
by Scott Clausen Nov. 17, 2010

Nov. 17, 2010

Luc and all, I've found that I can quit Pharo via the popup menu selection. I just can't quit it from the drop down menu In the menubar. Now I can go ahead and work through the docs. Thanks to all for listening. Scott A man who limits his interests limits his life. -- Vincent Price

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Re: [Pharo-users] Can't quit Pharo
by Scott Clausen Nov. 17, 2010

Nov. 17, 2010

"Hi Scott, Which virtual machine do you use and which image? and which versions? Luc" Luc, I'm using Pharo-1.1-OneClick on OSX 10.6.5. It appeared to be the easiest path to get started. Everything seems to work fine otherwise. Scott A man who limits his interests limits his life. -- Vincent Price

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Association
by Benjamin Nov. 16, 2010

Nov. 16, 2010

Hi guys, I have another noob question :) Why Association>>#= is not = anAssociation ^self == anAssociation or: [super = anAssociation and: [value = anAssociation value]] Because I can have strange behavior like association := #foo -> Float nan. {association} includes: association answer false :S Thanks, Ben

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Check a text - is it a date?
by Jeff Gray Nov. 15, 2010

Nov. 15, 2010

How do I check a text for holding a date value? isNumber is handy for numbers. Is there anything like that? The scenario I'm looking at is making sure a value in a Seaside control has been entered correctly. -- View this message in context: http://forum.world.st/Check-a-text-is-it-a-date-tp3042556p3042556.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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[ANN] Smalltalk Labs Browser for blogs
by HaiColon Nov. 15, 2010

Nov. 15, 2010

Hi, I released the first public version of "Smalltalk Labs Browser for blogs" (or just SLBfb since that name is really long.. ^^), a JavaScript widget that you can put on your blog (or any other kind of website) to offer your readers a web based Smalltalk code browser for classes you mention or even describe in an article or tutorial so that people don't need to have a Smalltalk image at hand to understand what you're talking about. The widget pops up when someone clicks on a classname and can be moved freely around a website, but it tries to position itself automatically in the best position when you don't move it by yourself and keeps doing so even when the web browser is resized. The widget downloads the source code of a class from a database over the net. At the moment the database has all 3093 classes of Pharo 1.1 in it and more Smalltalks (where code redistribution is allowed) are going to come soon, including some popular frameworks and libraries like Seaside. The only requirement to add this to a blog is that you can add custom JavaScript to your blog's template, you don't need a blog that runs on Smalltalk/Seaside for this, which means most free blog services work fine (including Tumblr and Blogger). I hope this will be of help to the Smalltalk community. It's completely free and Open Source, licensed under the thoroughly permissive Apache License Version 2.0 (both the widget and the database/website). I'm running this on Google App Engine and the free quota (bandwidth, database space, CPU time, etc.) should be enough to serve the whole Smalltalk community, or at least that's the idea. You can try it out directly on the SLBfb website: http://slbrowserfb.appspot.com or in my blog post about the release: http://smalltalklabs.tumblr.com/post/1557829586/smalltalk-labs-browser-for-… If you scroll to the very bottom of the website, there's a link "configuration" which will bring you to the interactive installation documentation to install this on your own blog/website. Keep in mind that this is the first release (apart from the pre-release on Pharocasts some time ago), so there could be some nasty bugs that only happen when there's a full moon and someone tries to sing a ballad on one leg with his arms tied behind his back. This only works in WebKit and Mozilla browsers at the moment, but for unsupported browsers or when you read a blog post that makes use of SLBfb in an RSS reader or on Planet Smalltalk/Squeak, a website is used to display the classes mentioned instead, so it still works but not as nicely. If someone wants to hack on the code, I'll release a screencast about how to set up a local development environment some time next week, including a small introduction on using the git version control system since the code is hosted on Github. Cheers, Chris -- View this message in context: http://forum.world.st/ANN-Smalltalk-Labs-Browser-for-blogs-tp3041451p304145… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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