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[story] using the inspector to debug a metacello configuration problem
by Tudor Girba Jan. 4, 2015

Jan. 4, 2015

Hi, Happy New Year! The GTInspector reaches its full potential when it is being extended to meet custom needs. I will try to document more scenarios to show how this works in practice and how programming changes as a result. Here is a story that describes a session of debugging a Metacello configuration problem: http://www.humane-assessment.com/blog/identifying-a-configuration-problem-w… Cheers, Doru -- www.tudorgirba.com "Every thing has its own flow"

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[ANN] Spec documentation in PFTE book finished
by Johan Fabry Jan. 2, 2015

Jan. 2, 2015

Hi all, I am happy to announce that Ben and I finished the documentation of Spec for the Pharo For The Enterprise book. This documentation is up-to-date with the latest version of Spec, and is focused towards people wanting to use it and even extend it (in contrast to the academic papers which are â¦ academic ;-) ). I hope that this text will help all the people that are building UIs in Pharo, and it will clear up any doubts that they may have. The chapter is available in source form from the GitHub project of the PFTE book: https://github.com/SquareBracketAssociates/PharoForTheEnterprise-english The easiest way to read the chapter is from the continuous integration server, which produces a html file of the chapter here: https://ci.inria.fr/pharo-contribution/job/PharoForTheEnterprise/lastSucces… (The same server also produces pdf and markdown files, but there are some strange artifacts there, currently. I guess this will be cleared up in the future) We tried our best to make it understandable and complete, but if you have any doubts or comments please do not hesitate to let us know !! Ben prefers Github apparently, but if you are oldskool like me you can also send a mail (privately or to the mailing list). Now it's time to build some cool user interfaces! :-) ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

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Traveling from Pharo Days to FOSDEM
by Rafael Luque Jan. 2, 2015

Jan. 2, 2015

Hi Pharoers, I will attend Pharo Days with a friend and after the conference we'd like to attend FOSDEM. Which the best way to travel to Brussels from Lille? Thank you and see you in Pharo Days.

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what is the state of remote prowsing and debugging?
by Martin BÃ¤hr Jan. 2, 2015

Jan. 2, 2015

hi, i have read some discussions about this topic going back half a decade ago, and i wonder if any progress has been made since. is anyone still working on this? the use-case i am interested in is development on headless servers. i found that VNC is just to slow. greetings, martin. -- eKita - the online platform for your entire academic life -- chief engineer eKita.co pike programmer pike.lysator.liu.se caudium.net societyserver.org BLUG secretary beijinglug.org foresight developer foresightlinux.org realss.com unix sysadmin Martin BÃ¤hr working in china http://societyserver.org/mbaehr/

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PetitParser and PPBrowser in Pharo 3.0
by Hartmut Jan. 1, 2015

Jan. 1, 2015

Hi to all, I'm working with PetitParser in a Pharo 3 image. Until now I had to do without the PPBrowser which I loved in Pharo 2. On forum.world.st I now found the hint by Jan Kurs to install all of the Petit suite: > "Configuration should be loaded like this:" > Gofer new smalltalkhubUser: 'Moose' project: 'PetitParser'; > configurationOf: #PetitParser; load. > > "All the petit parser suite:" > ConfigurationOfPetitParser loadDevelopment. Apart from the fact that this installed a real lot into my image, I notice the following problems in PPBrowser: 1. The map of none of the 18 parsers included, is displayed (it becomes red crossed). However, this was the most useful part of it 2. My interrelated parsers consist of a tree of parsers where each leave has its own start clause. They define related languages. It makes no sense to add a /start/ clause to the root. However, without such a meaningless /start/ clause, only the /source/ is displayed, neither /graph, example, first/ or /follow/ of any clause. (this can be reproduced when you move PPJsonGrammar>>start to PPJsonParser) I like the style of having a grammar class above a parser (or compiler) class. This is as seen in most of the accompanying parsers. My preferred petit parser style comprises: a) keeping grammar rules (without ==>) in the upper classes of the grammar hierarchy tree, such that we find the complete grammar there (without the /start/ clause). b) keeping replacement rules (using ==>) as low as possible the grammar hierarchy tree c) writing the start clause to the class that is actually called. (this gives different entries in a grammar allowing for different languages with grammar subsets) Is there an idea to have 1. and/or 2. resolved? Hartmut -- Hartmut Krasemann? KÃ¶nigsberger Str. 41 c ?D 22869 Schenefeld? Tel. 040.8307097? Mobil 0171.6451283? krasemann(a)acm.org

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PetitParser problem with plus
by James Foster Jan. 1, 2015

Jan. 1, 2015

There is something about plus that I donât understand. In the following code if I parse for (x , x) then I get what I expect. If I parse for (x plus) then the image hangs. What am I doing wrong? James | a notA x y | a := $a asParser. notA := $a asParser negate star flatten. x := a / notA. y := x , x. âworks fineâ y := x plus. ânever finishesâ ^y end parse: 'abâ.

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Implementation of book editor for PillarHub application
by Flayer Jan. 1, 2015

Jan. 1, 2015

Hello everyone! My name is Maxim Skripnik, and I wish to tell you about my first project that deals with Pharo and Pillar world. To make a long story short, it's about extension of functional for web-application called "PillarHub" that is written fully on Pharo with Seaside's tools. In substance, today it's a editor and viewer for articles written on Pillar markup but I will add opportunity to compile complete books from them. Anyway, if you are interested in it, you may find full description * here <http://pillarhub.pharocloud.com/hub/MaximSkripnik/bookcompilerintro> *. There, on PillarHub, I will report on progress, so check for updates there. Feel free to comment and share your ideas with me, I would be very glad to see some. Thank you for your attention! -- View this message in context: http://forum.world.st/Implementation-of-book-editor-for-PillarHub-applicati… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Pharo by Example updated: Metaclass chapter
by stepharo Dec. 31, 2014

Dec. 31, 2014

Hi guys I just finished to revisit the metaclass chapter for Pharo by Example based on Pharo 40. Stef

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pharo at google code-in
by Martin BÃ¤hr Dec. 31, 2014

Dec. 31, 2014

hi, i have been meaning to learn smalltalk for a while, but i always lacked a good project that i could do with it, until recently. and figuring that teaching is the best way to learn i put up my projects as tasks for google code-in as part of FOSSASIA which is a code-in mentor organization. since code-in targets middle and highschool students, it is quite unlikely that any of them already know smalltalk, or have even heared about it. so in a way this will introduce a few students to smalltalk. i picked pharo because i feel it is going in the right direction trying to improve and also adding things like commandline support. for my tasks i have two major aims: a desktop application that can search a given collection of text and browse the search results. a web application in form if a RESTful user management system that can be used as authentication server for nginx. (nginx makes a request for a given resource and asks if a user is allowed access) it has a dynamic frontend (angular.js or other) without generating html in the server. both projects are split up into several tasks. the desktop application project starts out exploring the basics of how to display text in a frame, covering the full pharo window, and switch between multiple texts: http://www.google-melange.com/gci/task/view/google/gci2014/5902940472606720 once completed a second task will add search capabilities: http://www.google-melange.com/gci/task/view/google/gci2014/5904045940146176 for the web-project first a set of tasks explores various web frameworks by letting the students walk through a tutorial and report on the results: aida: http://www.google-melange.com/gci/task/view/google/gci2014/5858171612561408 http://awblog.blog.com/2014/12/21/hello-world-creating-a-simple-webpage-wit… iliad: http://www.google-melange.com/gci/task/view/google/gci2014/5888240192061440 http://awblog.blog.com/2014/12/22/hello-world-creating-a-simple-webpage-wit… seaside: http://www.google-melange.com/gci/task/view/google/gci2014/5786620192096256 zinc: http://www.google-melange.com/gci/task/view/google/gci2014/5906919541702656 i may add another task for teapot, but i could not find any tutorial for tide the next step is to figure out how to serve static files from the image: http://www.google-melange.com/gci/task/view/google/gci2014/5814729360539648 the reason for that is that, this being a small application, i prefer easy deployability over performance, so i'd rather have all assets within the image. then the REST api: http://www.google-melange.com/gci/task/view/google/gci2014/5880541949722624 personally i am now leaning towards either just zinc or teapot to build the API since i have no need for most of the features of the larger frameworks. initially i was interested in aida because of its support for user management, but i am not sure it is needed. there is of course also a frontend: http://www.google-melange.com/gci/task/view/google/gci2014/5905960371486720 demo: http://idarbek.com/angular and a task to connect the two: http://www.google-melange.com/gci/task/view/google/gci2014/5240815429353472 for good measure, one task is exploring amber: http://www.google-melange.com/gci/task/view/google/gci2014/5825641580593152 what does all of that have to do with you? well, aside from the outreach to introduce pharo to students i'd like to invite your feedback on the tasks, and i am wondering if you have suggestions for other tasks that students could work on. essentially this is an opportunity for pharo (and other smalltalk projects) to participate in google code-in. FOSSASIA is inviting Free Software and Open Source projects to join as mentors. (well, primarily asian projects, but since Free Software and Open Source are global that is hard to pin down. i am in china, so...) but even if you don't join as mentors, if you have tasks for one of your projects that would be suitable, i can put them up, if i can mentor them. (and if they are easy enough for beginners, then i probably can) google code-in ends on the 20th of january, so there is still time for students to pick up a few more smalltalk tasks. greetings, martin. -- eKita - the online platform for your entire academic life -- chief engineer eKita.co pike programmer pike.lysator.liu.se caudium.net societyserver.org BLUG secretary beijinglug.org foresight developer foresightlinux.org realss.com unix sysadmin Martin BÃ¤hr working in china http://societyserver.org/mbaehr/

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ZnClient Error - Improper store into indexable object
by Edward Povazan Dec. 29, 2014

Dec. 29, 2014

I am playing around with Zinc, and I get an "Error - Improper store into indexable objectâ at ZnBufferedWriteStream>>nextPut: My Workspace: ----- | response | response := ZnClient new url:'http://amazon.com'; get; response. response writeOn: Transcript. Transcript flush ----- The reason is that instead of a Character, there is a SmallInteger of value 10 being added at ByteString>>at:put: (and 10 is a linefeed). Also the string in the entity is a WideString (ZnUTF8Encoder>>next:putAll:startingAt:toStream is where the choice is made to decode a ByteString vs WideString). Is this a bug? Running on Pharo 3. My newb debugging skills donât go further :( Other sites that fail are reddit.com, news.ycombinator.com. Thanks, -Ed

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