May 2018 - Pharo-users - lists.pharo.org

Showcasing Pharo, Roassal and Grafoscopio at re:publica 2018
by Offray Vladimir Luna CÃ¡rdenas May 8, 2018

May 8, 2018

Hi, I will be showcasing Pharo, Roassal and Grafoscopio at re:publica 2018, next week. As you may know, re:publica[2] is one of the most important and visible media & digital culture conventions in Europe and is a good scenario for the Pharo community.Â You can find details about my participation at [1] [1] https://18.re-publica.com/en/session/data-clinic-twitter-data-selfies-data-… [2] https://18.re-publica.com/en I will be making intensive refactoring on the Dataviz package to create some usual and unusual data visualizations from data exported from Twitter, so I may be more active those days in the Discord and mailing list channels, is some questions arise. Thanks in advance for the Pharo communities support. I wouldn't be able to be there without it. Cheers, Offray

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How to pretty print a dynamic array
by Davide Varvello May 7, 2018

May 7, 2018

Hi guys, I have a dynamic array that the formatter put on a column like this: {self meth1. self meth2. self meth3} instead I want it in a single row, like this: {self meth1. self meth2. self meth3} But I can't find any settings to pretty print in the last way. Can you help me, please? Davide -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Re: [Pharo-users] Package extension. Adding instance variables to classes
by Pavel Krivanek May 7, 2018

May 7, 2018

2018-05-07 12:25 GMT+02:00 Alidra Abdelghani via Pharo-users < pharo-users(a)lists.pharo.org>: > > > ---------- PÅeposlanÃ¡ zprÃ¡va ---------- > From: Alidra Abdelghani <alidrandco(a)yahoo.fr> > To: pharo-users(a)lists.pharo.org > Cc: > Bcc: > Date: Mon, 7 May 2018 11:25:49 +0100 > Subject: Package extension. Adding instance variables to classes > Hi, > > I am working on a package named ClassNamesAnalyzer and I need to add code > to third party classes in other packages (for instance the FAMIX-Core > package). > âExtendingâ third party classes with methods is easy; I just need to > categorise my methods under the *ClassNamesAnalyzer protocole so that > loading my package will load them in the image. > However, if I want to add instance variables to theses classes, they are > not there when I load the package in a new image. > > *So my question is* : is there a way to include instance variables > addition to other packages in my package? > Currently not, you should use privateState > *Another question is* : is it good practice to add instance variables to > classes in third party packages and is there a way to avoid it (because I > am not very confortable with that idea)? > It is not, see FAMIXContainerEntity>>#definedAnnotationTypes how this issue is currently being solved using the privateState. Cheers, -- Pavel > > Thanks in advance, > Abdelghani > >

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Package extension. Adding instance variables to classes
by Alidra Abdelghani May 7, 2018

May 7, 2018

Hi, I am working on a package named ClassNamesAnalyzer and I need to add code to third party classes in other packages (for instance the FAMIX-Core package). âExtendingâ third party classes with methods is easy; I just need to categorise my methods under the *ClassNamesAnalyzer protocole so that loading my package will load them in the image. However, if I want to add instance variables to theses classes, they are not there when I load the package in a new image. So my question is : is there a way to include instance variables addition to other packages in my package? Another question is : is it good practice to add instance variables to classes in third party packages and is there a way to avoid it (because I am not very confortable with that idea)? Thanks in advance, Abdelghani

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reading from a named pipe in Pharo
by Siemen Baader May 7, 2018

May 7, 2018

Hi, I'd like to use an external tool to edit HTML code and then store and version it in my Pharo image. I'd like to create a named pipe that the external application will save to, and then have Pharo watch for whenever the named pipe is written to and then execute code to handle the data from there. But I can't find any place to register a callback on FileReference and similar classes that will notify Pharo when the named pipe is changed, and when the external editor will read from it. Is there any support for this? I know there are workarounds like polling or reading the file when it is used, but I'd prefer to wire things together directly and avoid duplicating the data if possible. thanks, Siemen

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<Programming> 2019: Call for Papers & Call for Workshop Proposals
by Fabio Niephaus May 7, 2018

May 7, 2018

<Programming> 2019 : The Art, Science, and Engineering of Programming April 1-4, 2019, Genova, Italy http://2019.programming-conference.org The International Conference on the Art, Science, and Engineering of Programming is a new conference focused on programming topics including the experience of programming. We have named it <Programming> for short. <Programming> seeks for papers that advance knowledge of programming on any relevant topic, including programming practice and experience. Paper submissions and publications are handled by the the Art, Science, and Engineering of Programming journal (http://programming-journal.org) Accepted papers must be presented at the conference. ******************************************************** CALL FOR PAPERS ******************************************************** <Programming> 2019 accepts scholarly papers that advance knowledge of programming. Almost anything about programming is in scope, but in each case there should be a clear relevance to the act and experience of programming. PAPER SUBMISSIONS: June 1, 2018 URL FOR SUBMISSIONS: http://programming-journal.org/submission/ Submissions covering several areas of expertise are accepted, including but not limited to: â¢ General-purpose programming â¢ Distributed systems programming â¢ Parallel and multi-core programming â¢ Graphics and GPU programming â¢ Security programming â¢ User interface programming â¢ Database programming â¢ Visual and live programming â¢ Data mining and machine learning programming â¢ Interpreters, virtual machines and compilers â¢ Modularity and separation of concerns â¢ Model-based development â¢ Metaprogramming and reflection â¢ Testing and debugging â¢ Program verification â¢ Programming education â¢ Programming environments â¢ Social coding ******************************************************** CALL FOR WORKSHOP PROPOSALS ******************************************************** To build a community and to foster an environment where participants can exchange ideas and experiences related to practical software development, <Programming> will host a number of workshops, during the days before the main conference. The workshops will provide a collaborative forum to exchange recent and/or preliminary results, to conduct intensive discussions on a particular topic, or to coordinate efforts between representatives of a technical community. They are intended as a forum for lively discussion of innovative ideas, recent progress, or practical experience on programming and applied software development in general for specific aspects, specific problems, or domain-specific needs. We also encourage practical, hands-on workshops in which participants actually experience one or several aspects of practical software development. WORKSHOP PROPOSAL SUBMISSIONS: First Deadline: July 1st, 2018 Second Deadline: September 1st, 2018 The duration of workshops is in general one day, but we encourage the submission of half-day workshop proposals on focused topics as well. In exceptional situations, e.g., for workshops that involve actual practice of programming-related activities, workshop organizers can request a 2 day workshop slot. If desired, the workshop proceedings can be published in the ACM Digital Library. ******************************************************** IMPORTANT DATES ******************************************************** Research paper submissions: June 1, 2019 Research paper first notifications: August 1, 2018 Research paper final notifications: September 7, 2018 Workshop proposals: July 1st, 2018 (first deadline) Workshop proposals: September 1st, 2018 (second deadline) ******************************************************** ORGANIZATION ******************************************************** General Chair: Davide Ancona, University of Genova Local Organizing Chair: Elena Zucca, University of Genova Program Chair: Matthew Flatt, University of Utah Organizing Committee: Walter Cazzola (Workshops Co-Chair), UniversitÃ degli Studi di Milano Stefan Marr (Workshops Co-Chair), University of Kent Fabio Niephaus (Publicity Co-Chair), Hasso Plattner Institute, University of Potsdam Tobias Pape (Web Technology Chair), Hasso Plattner Institute, University of Potsdam Program Committee: Mehdi Bagherzadeh, Oakland University Walter Cazzola, UniversitÃ degli Studi di Milano Ravi Chugh, University of Chicago Joeri De Koster, Vrije Universiteit Brussel Christos Dimoulas, Northwestern University Susan Eisenbach, Imperial College London Richard P. Gabriel, Dream Songs, Inc. & HPI Jeremy Gibbons, University of Oxford Michael Greenberg, Pomona College Philipp Haller, KTH Royal Institute of Technology Robert Hirschfeld, HPI, University of Potsdam Eunsuk Kang, Carnegie Mellon University Stephen Kell, University of Cambridge Stefan Marr, University of Kent Tamara Rezk, Inria Joshua Sunshine, Carnegie Mellon University Steffen Zschaler, King's College London ******************************************************** <Programming> 2019 is kindly supported by AOSA ******************************************************** For more information, visit http://2019.programming-conference.org

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Commit request on PBKDF2
by Martin Dias May 7, 2018

May 7, 2018

Hello Udo and PBKDF2 users, Thanks for the PBKDF2 [1] project; it's been useful in the mongotalk project [2]. Now, I write you with a small change proposal due to some problems I have because of name conflicts with classes at Cryptography package [3] (which ConfigurationOfPBKDF2 declares as a dependency). I analyzed what are the concrete dependencies in PBKDF2 to Cryptography: - Core uses SHA1, which is in Pharo at least since Pharo 4.0 - Tests use the ByteArray>>fromHexString: method extension, which could be copied. (BTW also thanks to Christophe Demarey and collaborators for the Dependencies Analyzer, it's very useful!) Then (unless I'm missing something), PBKDF2 doesn't really need Cryptography as dependency. I can commit the changes if you agree (I see the repository is public). It works locally. Regards, MartÃn [1] http://smalltalkhub.com/#!/~UdoSchneider/PBKDF2 [2] https://github.com/pharo-nosql/mongotalk [3] http://smalltalkhub.com/#!/~Cryptography/Cryptography/

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Histogram for files dates and sizes
by Offray Vladimir Luna CÃ¡rdenas May 6, 2018

May 6, 2018

Hi, I'm making a histogram of files that have the naming convention |YYYY_MM.js|, for year and month info. The image below shows what I get until now: By the way, you can run this example by loading and updating the Dataviz package [2] from [3] [2] http://mutabit.com/repos.fossil/grafoscopio/doc/tip/Packages/Dataviz/readme… [3] http://ws.stfx.eu/OUEYE943HV3Q I would like to have bars for every year of a file name in a different color (I imagine that using |#distinctColorUsing:| ) and ticks on each year. I'm seeing some examples in the image and in http://agilevisualization.com/AgileVisualization/Roassal/0104-Roassal.html, but I wonder if there is a more mature and already existing RTObject for this kind of work. Also I would like to show Y axis scale using size of files in a human friendly format (160 Kb instead of 160000.0 and so on). Any help or pointers on this is greatly appreciated. Cheers, Offray

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Using secure websockets server side with Zinc
by Cyril Ferlicot D. May 6, 2018

May 6, 2018

Hi! I am trying to deploy a Seaside application that uses Zinc's websockets. I use nginx and I have a TLS certificate for the application so I need to use secure websockets (wss://) and not simple websockets (ws://). I got a problem because the client could not access to the server because it was failing the handshake. I could make it work by using nginx to manage the certificate. But I was wondering if it would be possible with Zinc to give the access to the certificate to manage the connection instead of doing it via nginx. Is it possible to do this? Thanks in advance. -- Cyril Ferlicot https://ferlicot.fr

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Re: [Pharo-users] [Seaside] [ANN] ChartJs for Seaside v1.0.0
by Cyril Ferlicot D. May 6, 2018

May 6, 2018

Le 04/05/2018 Ã 22:06, Smalltalk a Ã©critÂ : > Cyril, > > Thanks for sharing this. Very cool ! > > I'm using a very basic package to render charts with SVG (scalable > vector graphics) build by my self. > > Now i think i will switch to ChartJs. I'll try to load it to Seaside for > GemStone. Great! :) I never really used gemstone so there will be some troubles probably. If you open issues describing them I can correct them when I'll have the time. > > regards, > bruno > > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> > Libre de virus. www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> > > > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > > > _______________________________________________ > seaside mailing list > seaside(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside > -- Cyril Ferlicot https://ferlicot.fr

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