October 2017 - Pharo-dev - lists.pharo.org

Scraping HTML chapter 2 (soon chapter 3 coming)
by Stephane Ducasse Oct. 4, 2017

Oct. 4, 2017

I came with the idea of this booklet thank to Peter Kenny that kindly answered a question on the Pharo mailing-list. To help, Peter showed to a Pharoer how to scrap a web site using XPath. In addition, some years ago I was maintaining Soup a scraping framework because I was scraping magic web sites and I wanted an application to manage my magic cards. Since then I always wanted to try XPath and in addition I wanted to offer this booklet to Peter. Why because I asked Peter if he would like to write something and he told that he was at a great age where he would not take any commitment. I realised that I would like to get as old as him and be able to hack like a mad in Pharo with new technology. So this booklet is a gift to Peter, a great and gentle Pharoer. Stef

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[Ann] Class meta annotations
by Denis Kudriashov Oct. 4, 2017

Oct. 4, 2017

Hi. I glad to present one class package which introduces reusable mechanism for first class annotations. The project can be found on github https://github.com/dionisiydk/ClassMetaAnnotation. And I tried to describe why it is needed in my blog http://dionisiydk.blogspot.fr/2017/09/class-meta-annotations.html. And here is overview: Every annotation should be subclass of ClassMetaAnnotation. To attach it to class you create new class side method which will return an instance of the annotation. Method should be marked with pragma #classMetaAnnotation: MyClass class>>specialAnnotation <classMetaAnnotation> ^MySpecialAnnotation new To query annotations from system there are two methods: 1) You can ask concrete annotation class for all declared instances: MySpecialAnnotation declaredInstances 2) You can ask given class for all attached annotations: MyClass metaAnnotations Every annotation includes information about annotated class and the selector of declaring method. All annotations are cached. So it is cheap to query them. There are extra messages to enumerate annotations using block. Now let's discuss it. I think it can be good addition for the Pharo 7. Especially that it is very small code. Also I would like to thank Marcus who helps me realize this concept in Commander and Calypso which I start simplify with this library. Best regards, Denis

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Should we always put application file paths into FileLocator?
by Denis Kudriashov Oct. 3, 2017

Oct. 3, 2017

Hi. Many times I was trying to find "global" files of some packages in system. For example do you know how to find epicea session logs? There is class side method for this at EpMonitor: EpMonitor logsDirectory Is it easy to find when you never look at it? No. Do you know how to find sources file? There is message in Smalltalk global: Smalltalk sourcesFile Is it easy to find? No. And there are many other examples. But if you read about FileSystem library. You know the common place where to find well known files. It is FileLocator. For example changes file is here: FileLocator changes. So my idea is to introduce kind of pattern, the good style, how to access global application files: they should be in FileLocator as extensions. Then it would be super easy to find files of any applications. What do you think? If it is good idea then we should fix current places in system to follow this pattern. Best regards, Denis

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MetaLink question
by Thierry Goubier Oct. 3, 2017

Oct. 3, 2017

Hi, is there a way to look at a method code once it has been added metalinks? I'm trying to add a metalink after the last statement of a block and it fails on IR generation with an unknown temporary... Regards, Thierry

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About a discord channel for the mooc?
by Stephane Ducasse Oct. 3, 2017

Oct. 3, 2017

Hi guys The students of the lectures at Prague and the forthcoming mooc will be strongly suggested to use discord. So now how can we organise it? How do we create a channel? Stef

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[Pharo 7.0-dev] Build #167: 20073 string morph add emphasis method
by ci-pharo-ci-jenkins2＠inria.fr Oct. 3, 2017

Oct. 3, 2017

There is a new Pharo build available! The status of the build #167 was: SUCCESS. The Pull Request #322 was integrated: "20073 string morph add emphasis method" Pull request url: https://github.com/pharo-project/pharo/pull/322 Issue Url: https://pharo.fogbugz.com/f/cases/20073 Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

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Sista alternate bytecodes + Java Bytecode ?
by Ben Coman Oct. 3, 2017

Oct. 3, 2017

Just wondering about an exotic idea, with Sista facilitating alternate bytecodes (btw, is that multiple bytecode sets within one Image?), how feasible would it be to have the VM process Java bytecode? cheers -ben

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Pharo Launcher Error
by Brad Selfridge Oct. 3, 2017

Oct. 3, 2017

I'm trying to run the Pharo6.1 Launcher. I'm getting the following error when running from a command line: * "This interpreter (vers. 68021) cannot read image file (vers. 6521)."* I'm running the 64bit vm built on July 20th and I downloaded the latest launcher at: *http://files.pharo.org/platform/launcher/PharoLauncher-user-stable-2017.09.29.zip* Thanks for any help, ----- Brad Selfridge -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

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Two GitHub organizations
by Sean P. DeNigris Oct. 2, 2017

Oct. 2, 2017

What is the difference between pharo-project and pharo-vcs? ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

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Esteban's ChangeLog week of 25 September 2017
by estebanlm＠gmail.com Oct. 2, 2017

Oct. 2, 2017

Hello! This is my weekly ChangeLog, from 25 September 2017 to 1 October 2017. You can see it in a better format by going here: http://log.smallworks.eu/web/search?from=25/9/2017&to=1/10/2017 ChangeLog ========= 28 September 2017: ------------------ * I spent my day preparing [iceberg 0.6](https://github.com/pharo-vcs/iceberg/commits/dev-0.6) to be released and I think I didn't do a bad you. * I integrate two PR to dev-0.5 and then merge it to dev-0.6 * I closed issues [#470](https://github.com/pharo-vcs/iceberg/issues/470) and [#239](https://github.com/pharo-vcs/iceberg/issues/239) * I fixed a problem on cherry-pick and renamed/removed classes (not reported as issue, but there) * I added a "full sync" option meant to verify the full repository differences (this is useful in certain cases) ... and I'm still trying to get a loadable version of latest metacello (which will come with tonel integration) 27 September 2017: ------------------ * I'm still making latest [metacello](http://github.com/metacello/metacello) version to work properly on Pharo, so we can integrate it into Pharo 7.0 (and we can also update Iceberg). Right now, I have what I think is a "working version", but I'm still figuring out how to include it into Pharo (other than regular merge in image, export... which I think will be our approach until we have subtrees) 24 September 2017: ------------------ * I forget to say that friday with Ronie we made win32 headless version work :) Now, it just remains win64 version... and of course, we will need to start test intensively so we can have good support for the moment of release. cheers! Esteban

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