February 2011 - Pharo-users

funny idea Symbol vs. Selector
by stephane ducasse May 14, 2015

May 14, 2015

Hi guys I'm thinking aloud... I was wondering if we could not take advantage of a new class: Selector. MethodDict would only contain selectors and not symbols. I remember that I talked about that with hernan. Stef

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Package browser?
by Rob Vens June 28, 2013

June 28, 2013

I am attempting to do the Pharo by Example book, but a package browser (which is used in the examples) is not in the 1.1.1 or 1.2 image. Should I still use categories? If I create a package in Monticello browser I am not able to add classes or anything (not as far as I could see). Just starting out using Pharo, so apologies if these questions are already answered elsewhere.

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permutations / combinations implementation
by Tudor Girba Nov. 2, 2011

Nov. 2, 2011

Hi, Is there an implementation of permutations and combinations of a collection? Cheers, Doru -- www.tudorgirba.com "Presenting is storytelling."

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Z3950 on OSX: module yaz3 not found
by laurent laffont April 25, 2011

April 25, 2011

Hi, I want to use http://www.squeaksource.com/Z3950 Following install instructions, I've dowloaded yaz sources (I've tried 4.1.2 and 3.0.52) as it seems there's no binary for OSX, ./configure && make && make install. Then using latest Seaside One Click image I've copied /usr/local/lib/*yaz* in Seaside.app/Contents/MacOS $ ls ~/Downloads/Seaside.app/Contents/MacOS/ Squeak VM Opt libyaz.a libyaz.la libyaz_icu.a libyaz_icu.la libyaz_server.a libyaz_server.la libyaz.3.dylib libyaz.dylib libyaz_icu.3.dylib libyaz_icu.dylib libyaz_server.3.dylib libyaz_server.dylib But then I have a External Module Not Found on YAZPQFFFILibrary>>createParser " YAZPQDFFILibrary default createParser " <cdecl: YAZPQFParser 'yaz_pqf_create' (void) module: 'yaz3'> ^ self externalCallFailed Any hint ? Cheers, Laurent Laffont -- FFI newbie Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/

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Help (perfect for newcomers) migrating a technical FAQ
by Mariano Martinez Peck April 9, 2011

April 9, 2011

Hi folks. I had a good idea and and it perfect for someone that wants to help and don't know how. It is not the most entertained task, but I promise you will learn a lot. Mostly, if you are newcomer. The idea is basically to migrate the FAQ that is here: http://scg.unibe.ch/wiki/faq/pharofaq to a new section in the collaborative Pharo book: http://book.pharo-project.org/ So....any takers ? Let us know so that we generate a new user in the Book The idea is also to check whether what is says is still correct for pharo or if it needs an update. Or even how to improve it (from the view of a newcomer). Thanks Mariano

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Re: [Pharo-users] Simple plugin for Jenkins to run Pharo/Squeak VM images
by Marcus Denker March 7, 2011

March 7, 2011

On Feb 28, 2011, at 3:49 PM, StÃ©phane Ducasse wrote: > thanks panu > > did you see that we are heavily using hudson? > Is your code different? > We are actually not using a plugin but just call shell scripts on the server. (we use Lukas' scripts https://github.com/renggli/builder ) I know that Philippe did a plugin, too. I always wanted to look at how a plugin can even simplify the setup... (especially for simple cases), but this has been pushed down the TODO list... Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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Re: [Pharo-users] Is there a metric server for Pharo
by Panu Suominen March 1, 2011

March 1, 2011

2011/2/28 Marcus Denker <marcus.denker(a)inria.fr>: > There is Moose: > It has all the code for calculating metrics. (and to do visualizations based on them) I know. But the results should be stored somewhere to be publicly viewable. Preferably version information is attached to the metrics enabling monitoring if problems get fixed or introduced. > We are actually developing a reporting dashboard thing for the pharo code base... > maybe Cyrille can tell more? OK. I would like to know more. :)

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rounding errors
by t olschewski March 1, 2011

March 1, 2011

Hi, using formatted number output recently I got the following output: 1.0 printPaddedWith: $0 to: 2.1. "'01.0'" 1.0 printPaddedWith: $0 to: 2.2. "'01.00'" 1.0 printPaddedWith: $0 to: 2.3. "'01.00'" <-- wrong 1.0 printPaddedWith: $0 to: 2.4. "'01.000'" <-- wrong 1.0 printPaddedWith: $0 to: 2.5. "'01.00000'" running Float>>printPaddedWith:to: in the debugger showed me that the reason of this odd behaviour seems to be produced by Float>>truncated and/or Float>>fractionPart. I can provoke errors of that kind even easier: (2.3 fractionPart * 10) truncated. => "2" (instead of 3) In Primitive 51 (primitiveTruncated for Float>>truncated) I read frac = modf(rcvr, &trunc); so the problem looks like an issue with rounding errors in Math-Library's modf function. Indeed, I can reproduce the odd result of "(2.3 fractionPart * 10) truncated." in C++ using modf: // g++ -lm truncate.cpp && ./a.out #include<iostream> #include<cmath> using namespace std; int main(){ double f1, f2, f3; modf(10 * 0.3, &f1); cout << f1 << endl; modf(10 * modf(2.3, &f2), &f3); cout << f3 << endl; } // output: // 3 (ok) // 2 (error - should be 3) Question: what can be done about this? As a matter of fact, several important methods spread over a number of classes (Float, Number, Morph ... being among them) are senders of Float>>truncated or Float>>fractionPart, so rounding errors in primitive 51 or 52 could provoke unexpected behaviour in surprising places. -- View this message in context: http://forum.world.st/rounding-errors-tp3327130p3327130.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Deleting an instance
by DougEdmunds Feb. 28, 2011

Feb. 28, 2011

Is there a way to delete/remove/kill an instance other than by quitting and starting Pharo up again? In my example, I installed the ContactListEditor package from http://www.pharocasts.com/2011/02/pharo-gui-with-polymorph.html After several "ContactListEditor open" doIts, I closed most of the windows. I inspected "ContactListEditor allInstances" and it has an array of instances, one for each 'doIt'. The instances are still 'alive', including those whose windows were closed. If I save and quit Pharo, and restart it, the only instances that are alive are the ones that have open windows. -- View this message in context: http://forum.world.st/Deleting-an-instance-tp3328590p3328590.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Re: [Pharo-users] Is there a metric server for Pharo
by Marcus Denker Feb. 28, 2011

Feb. 28, 2011

On Feb 28, 2011, at 4:58 PM, Panu Suominen wrote: > This time I ask before implementing something that has already been done. :) > > I know there are quite good tools for metrics and code quality > control. However I don't know if there is any software to publish > these kind of results. In Java world there is Sonar > (http://www.sonarsource.org/) So, are there any tools to publish code > quality metrics? If not I am going to see if sonar can be used to > archive this task... someday. > There is Moose: http://www.moosetechnology.org/ It has all the code for calculating metrics. (and to do visualizations based on them) We are actually developing a reporting dashboard thing for the pharo code base... maybe Cyrille can tell more? Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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Is there a metric server for Pharo
by Panu Suominen Feb. 28, 2011

Feb. 28, 2011

This time I ask before implementing something that has already been done. :) I know there are quite good tools for metrics and code quality control. However I don't know if there is any software to publish these kind of results. In Java world there is Sonar (http://www.sonarsource.org/) So, are there any tools to publish code quality metrics? If not I am going to see if sonar can be used to archive this task... someday. -- Panu

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Re: [Pharo-users] Simple plugin for Jenkins to run Pharo/Squeak VM images
by Marcus Denker Feb. 28, 2011

Feb. 28, 2011

On Feb 28, 2011, at 4:03 PM, Panu Suominen wrote: > 2011/2/28 Marcus Denker <marcus.denker(a)inria.fr>: >> We are actually not using a plugin but just call shell scripts on the server. >> (we use Lukas' scripts https://github.com/renggli/builder ) >> I know that Philippe did a plugin, too. I always wanted to look at how a plugin can even >> simplify the setup... (especially for simple cases), but this has been pushed down the >> TODO list... > > Yep. This is plugin not a shell script. This is the main difference. > Of course the plugin is not so mature > as the shell script. For example I haven't had time to test how to > maintain package cache, but that should > be quite easy to do using Jenkin's workspace. > > At my work This start of the sentence I like a lot! :-) > we have some problems creating new build configurations > using the shell approach and thus we needed plugin to help the > process. Unfortunately I did not find plugin for the job so I had to > start writing one. I will definitly have a look. I will send you the plugin (and contact) of Phillippe. Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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Simple plugin for Jenkins to run Pharo/Squeak VM images
by Panu Suominen Feb. 28, 2011

Feb. 28, 2011

I don't know if there will be any use for this, but I had couple of free hours last weekend and I made simple plugin to run Squeak/Pharo images inside Jenkins CI-server (formerly Hudson). After installation one should be able to configure Squeak/Pharo VM under hudson management. After that one is able add build step that runs Pharo/Squeak image. One can define parameters, image and script that is passed to the given image. I will improve documentation and such when I have time. However I will do it faster if there is some interest towars this kind of plugin. Codes can be loaded form the github. (mvn package should compile plugin under target dir). https://github.com/pnuz3n/Jenkins-Pharo-Plugin There is precompiled version currently available at URL. http://users.jyu.fi/~pajumasu/jenkins-pharo-plugin/jenkins-pharo-plugin.hpi -- Panu

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PharoCasts has a new skin
by laurent laffont Feb. 27, 2011

Feb. 27, 2011

Thanks to Claire & Patrick Barocca, PharoCasts now has its own skin and a nice logo ! http://www.pharocasts.com/ Laurent

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Re: [Pharo-users] SimpleWebDoc question
by laurent laffont Feb. 27, 2011

Feb. 27, 2011

Hi Marco, I've put the working image here: http://lolgzs.free.fr/pharo/simplewebdoc.zip Note it uses Pharo pre-1.0 and Seaside 2.8. The nice url http://localhost:8080/Collections is handled by SWDocView>>initialRequest: I don't know if it works with Seaside 3. I haven't looked back at SimpleWebDoc for more than one year, and I've written it to learn so it's hacky. No problem to post future questions, but I think that posting on pharo-users list is even better (I read it). And thanks to look at this project. Cheers, Laurent. On Sun, Feb 27, 2011 at 6:13 PM, Marco A. Gonzalez <marcoinc(a)mac.com> wrote: > Laurent, > > First, thank you for your postings on Smalltalk. I've been bitten by the > smalltalk bug and am trying to convert from Java to smalltalk, and your > postings have helped. So... I guess I'm still a newbie... asking for help... > > So... I found that you mentioned SimpleWebDoc ( > http://www.squeaksource.com/SimpleWebDoc.html) in a posting > http://forum.world.st/Pharo-Sources-Google-Hit-Ratio-td3318289.html but it > didn't seem appropriate to post there a "newbie" message regarding how to > get SimpleWebDoc to work so please excuse me for writing directly to you. > > I loaded SimpleWebDoc into my Pharo 1.1 image via Monticello, but when I > point my browser to http://localhost:8080/view-doc and click on a package > name, say "Collections" which links to http://localhost:8080/Collections, > I get the following error: > > /Collections not found > > which I assume is because Seaside doesn't have a "Collections" entry in the > config. So, I don't know what I don't know in order to get it working how I > assume you expected it to work. Would you give me some direction? > > Finally, please let me know where I might post future questions like this > one so that others can learn from my questions and your answers. > > Thanks again for your contributions, > > - Marco A > > ------------------------------------------------------ > Marco A. Gonzalez, President > Amagavi, Inc. > Developer of database-driven web sites > > web: http://www.amagavi.com/ > email on iPhone: marcoinc(a)mac.com > cell: 202-222-5137 > > > > >

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Monticello: how to update package-cache listing?
by DougEdmunds Feb. 25, 2011

Feb. 25, 2011

I deleted a mcz file manually from the package-cache directory (outside of Pharo), but when I go into the package-cache repository, through Monticello, the deleted file still appears on the list for that package. What code do I run to refresh the listing of the contents of the package-cache repository for Monticello? -- View this message in context: http://forum.world.st/Monticello-how-to-update-package-cache-listing-tp3325… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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plot
by Werner Kassens Feb. 25, 2011

Feb. 25, 2011

hi, what can i use to plot a collection of numbers? werner

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Provided packages from Metacello project configuration
by Panu Suominen Feb. 25, 2011

Feb. 25, 2011

This is probably wrong mailing list for this question... Is there a way to define what categories/packages/classes are provided by the given configuration? For example ConfigurationOfXXX project latestVersion providedPackages This would not include the packages that are required by the project and are actually provided by other configurations/projects. If there is a way to produce this kind of package list it would help implementing CI-testing. Testing script would not have to explicitly list what packages to test but could refer to the project definition. Currently one has to alter the testing script every time the packages are changed. With this kind of information one could implement project CI-builds with something like this: whatToBuild := ConfigurationOfXXX project lastVersion. whatToBuild load. HDTestReport runPackages: whatToBuild providedPackages. HDLintReport runPackages: whatToBuild providedPackages. And then it would be easy to build custom Job plugin to Jenkins that would simply ask about the name and the location of ConfigurationOfXXX. -- Panu

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Pharo mailing list weekly summary #3
by Francois Stephany Feb. 24, 2011

Feb. 24, 2011

Hi guys, I've posted the summary for this week: http://articles.tulipemoutarde.be/pharo-mailing-list-weekly-summary-3 I was away so I certainly forgot some important stuff. Please tell me if I did. I've seen that I'm now in Planet Smalltalk, thanks to the one who registered me ! See you next week, Francois

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What to do after vm crash?
by DougEdmunds Feb. 24, 2011

Feb. 24, 2011

XP SP3 box, Pharo.exe v 4.0.2.0 Image: PharoCore-1.2 I've been using this image for several days. This time when I opened it, it immediately crashed. I've tried starting it several times, including after a reboot, with the same results. I get a popup entitled "Fatal VM error', with some numeric details. When I click ok, it writes a crash.dmp file and closes. 1) Is there a way to to recover the image, if I start with a clean image? 2) Is there anyone who wants a copy of the crash.dmp report? It's about 100 lines long, and I could post it or email a copy to someone. Thanks. - Doug Edmunds -- View this message in context: http://forum.world.st/What-to-do-after-vm-crash-tp3322029p3322029.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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StandardWindow and SystemWindow
by DougEdmunds Feb. 22, 2011

Feb. 22, 2011

I'm looking at the tutorial on GUIs at: http://book.pharo-project.org/book/GUI/PolymorphTutorial/Layout/?_s=J-fOIjG… The examples sometimes use StandardWindow and other times SystemWindow. When and why should I use SystemWindow? -- View this message in context: http://forum.world.st/StandardWindow-and-SystemWindow-tp3318409p3318409.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Feb. 21, 2011

Dear Pharoers We are pursuing an effort to bring Pharo to the next level: we will set up a consortium of pharo users and industrial partners. Our goal is to build a legal infrastructure that will be able to sustain the development of Pharo and improve its future. As an example, we would like to be able to collect funds (ways as to be determined - we foresee a membership model or moral license) to pay engineering tasks to be performed such as improving the virtual machine, network libraries, better JIT support. To make it short we would like to give a chance to our community to grow and structure itself so that Pharo can get stronger and that risk (truck factor) gets minimized. We are contacting you to know if your company/research group would be interested to support such effort. Showing such interest is strategically important for us and INRIA which could also support such effort. Attached is the letter of support that we will collect once signed and scanned ( stephane.ducasse(a)inria.fr / faxed at: 00 33 (0)3 59 57 78 50) Thanks for your support The Pharo Board M. Denker, S. Ducasse, and A. Lienhard

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Re: [Pharo-users] [Pharo-project] [ANN] pharo focused sprint - bern, feb 26
by Mariano Martinez Peck Feb. 21, 2011

Feb. 21, 2011

On Tue, Feb 1, 2011 at 4:38 PM, Tudor Girba <tudor.girba(a)gmail.com> wrote: > Hi, > > We would like to organize a Pharo Sprint on Saturday, February 26 at SCG, > University of Berne, Switzerland (room 107): > http://scg.unibe.ch/contact/maps > > Unlike other sprints, this would not be about fixing things from the > tracker, but about building something new and reviewing the situation around > one central topic. For this one, the main topic will be Morphic and the IDE. > Why? Because it is time to rethink our day-to-day tools and bring them > closer to this century (ok, maybe decade :)). It is Ok if you are not a > specialist. It is more important to want to participate and learn. The rest > will come in time. > > ***** Please let us know by mail if you plan to attend and what you would > wish to work on (see below). > > Proposed tasks (other tasks are possible in the same area): > - Enhancements of Morphic widgets: > --- TabGroupMorph with lazy pages, closable tabs, overflow handling and > toolbars (a start exists in Glamour) > --- High level support for collapsable panes (based on the input of Gary) > --- SearchMorph with multiple groups of items (like in Spotlight) > --- MorphTreeMorph integrated with GeneralScrollPane to allow for space > filling > --- BreadcrumbMorph > --- Hyperlinks in TextMorphs > - Test and enhance the current IDE > - Evaluate TextMorphs: NewTextMorph, PluggableTextMorph, > SMxPluggableTextMorph etc > - Prototype a new ToolSet solution > - Enhancements of Glamour and of the Glamorous Toolkit > --- Debugger > --- Coder > --- Multipage Workspace > --- CodeBubbles > - Develop WeakAnnouncement (start from the implementation of Lukas) > - Evaluate the various keybinding implementations > - Evaluate ToolBuilder > - Evaluate the path to adopt SimpleMorphic > > A second working topic is getting Monticello faster, but this will only be > tackled if there are enough people for the first one. > > Cheers, > Adrian and Doru > > > > -- > www.tudorgirba.com > > "Be rather willing to give than demanding to get." > > > > >

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[ANN] Moose 4.3
by Tudor Girba Feb. 20, 2011

Feb. 20, 2011

We are happy to announce the Moose Suite version 4.3: *http://moosetechnology.org/download* What is new: - New look and feel - New and flexible API to browse FAMIX models - Extensible Moose Finder - Enhanced Glamour engine to deal with complex actions - Enhanced FAMIX support for Java systems - Enhanced Glamour rendering for Morphic - Enhanced meta browser - Enhanced documentation of Mondrian - Enhanced XMLSupport - Enhanced Smalltalk importer A list of issues addressed in this release can be found at: *http://code.google.com/p/moose-technology/issues/list?can=1&q=status=Fixed%20milestone=4.3* Have fun, The Moose Team

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Removing Package from SqueakSource Project
by Runar Jordahl Feb. 18, 2011

Feb. 18, 2011

I have a (private) SqueakSource project where I want to remove a package. I changed my package names, and leaving the old package will probably only confuse users. I am unable to find a way to remove packages in the SqueakSource project. There is the possibility to delete the project, and recreate it under the same name, then publish the correct packages. Is this my only option? (I use Metacello so I know I can create configurations to ease the understanding of the project's contents. But I still want to remove packages...) Kind regards Runar

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