April 2010 - Pharo-users - lists.pharo.org

Error:invalid utf8 input detected.
by Guillermo Polito June 24, 2010

June 24, 2010

Hi there! We are using Pharo to teach OOP in UTN university, Argentina. Some times students have the error Invalid utf8 input detected when loading an image or doing a file out of a category. I think it happens mostly (or always, i'm not sure) in the OneClicImage, when running on windows. Is it a known issue? Thanks!

4 15

Traits versus packages
by Johan Fabry April 30, 2010

April 30, 2010

Hi all, quick question. Preamble: If I have a trait TAMStructuralZoom defined in the package AspectMaps (for example), and I want to apply it to the class FAMIXNamespace, defined in the package Famix-Core (for example), this implies that I need to change the class definition of FAMIXNamespace like this: FAMIXScopingEntity subclass: #FAMIXNamespace uses: TAMStructuralZoom instanceVariableNames: '' classVariableNames: '' poolDictionaries: '' category: 'Famix-Core' Question: this change is now part of the Famix-Core package, right? Is it possible for this change to be part of the AspectMaps package? I want this for the obvious modularity & source code management advantages. -- Johan Fabry jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry PLEIAD Lab - Computer Science Department (DCC) - University of Chile

4 11

Pharo developers you can subscribe to Pharo-Users too ; )
by Mariano Martinez Peck April 27, 2010

April 27, 2010

Hi everybody. We have two mailing list as you may know: one for pharo developers or people very interested in Pharo and its internal details. This mailing list is pharo-project(a)lists.gforge.inria.fr It is high traffic and there are a lot of people that cannot follow. Then we have the Pharo-User mailing list for those that just want to use Pharo and don't care about their internals. This mailing list has less traffic. This mailing list is pharo-users(a)lists.gforge.inria.fr The problem is that there is people that are subscribed to pharo-project(a)lists.gforge.inria.fr but not to pharo-users. In this last mailing list, usually new comers ask questions. It would be great that all the people that is already subscribed to pharo-project(a)lists.gforge.inria.frand have time to follow that mailing list, to subscribe also to Pharo-Users. Sometimes I am obligued to tell new comers "ask in pharo-project(a)lists.gforge.inria.fr as not all the people is subscribed there" ... and thus, the Pharo-Users becomes useless. Thanks Mariano

3 2

Re: [Pharo-users] [Pharo-project] RB AST serialization
by Johan Fabry April 27, 2010

April 27, 2010

(To pharo-users as I am not on pharo-project, and I think neither is Daniel) Yes we have been considering various strategies to get it as compact as possible and considering cputime/memory trade-offs (and making it possible to select compression strategies). But want to get it to work first. These undocumented nodes are the next hurdle: we need some info on RBPragmaNode, RBArrayNode, RBLiteralArrayNode so that Daniel can write the serializer for them. On 27 Apr 2010, at 01:49, StÃ©phane Ducasse wrote: > Daniel what would be really cool is to see if we can compact/zip AST because > marcus is really interested into slimbinary libraries and having a really strong compaction > of AST would be an interesting basis for a lot of experience > > On Apr 27, 2010, at 6:45 AM, Daniel Galdames wrote: > >> Hi, I'm working on a serialization of a RB AST, is in a very very earlier state, it can encode simple ASTs into a string but today i changed the encode methods, so now you can't decode the generated string :-P .Some node from AST-Core can't be encoded yet (RBPragmaNode, RBArrayNode, RBLiteralArrayNode) because I'm not sure what to encode, and the nodes aren't documented, at least in Pharo 1.0. >> Any comments and suggestions will be appreciated!! :-) >> I uploaded the code in squeaksource: >> http://www.squeaksource.com/AstSerializer.html >> >> I'm a bit new to Smalltalk and Pharo, so feel free to comment... >> Greetings, >> Daniel Galdames G. >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project -- Johan Fabry jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry PLEIAD Lab - Computer Science Department (DCC) - University of Chile

2 2

(no subject)
by alex mortelmans April 27, 2010

April 27, 2010

Hi, when using a SystemBrowser, can there be a navigation history? To explain what iÂ mean, here is an example. WhenÂ you search : Â Rectangle >> flipBy: direction centerAt: aPoint ; Point >> rect: aPointÂ ; Rectangle >> origin: originPoint corner: cornerPoint ; Â Â .. and then want to go back to : Â Rectangle >> flipBy: direction centerAt: aPoint Â , is there some tool allowing to step back ? Â Alex Â

3 2

XmlRpcClient for smalltalk ?
by tommy koorevaar April 27, 2010

April 27, 2010

Hello everyone, I'm a French student and I'm working on a project in which I have to send XmlRpc request with smalltalk. Does anyone know if there is anything already implemented I could use ? Thank you very much, Tom

2 1

[ANN] Pharocasts: SandstoneDb (with subtitles !)
by laurent laffont April 26, 2010

April 26, 2010

Hi, I've just uploaded a new screencast which introduces SandstoneDb (and also HelpSystem). http://pharocasts.blogspot.com/2010/04/sandstonedb-simple-activerecord-styl… Note this is my first one with subtitles. There's a link so you can download it and translate it (some people have asked for that). I've used SubtitleEditor (http://home.gna.org/subtitleeditor/) but I don't really like it. Do you know a better software on Linux ? The video is accelerated, it's more dynamic IMHO ( to do this in avidemux, just go in video menu, framerate, and put a higher framerate). <http://pharocasts.blogspot.com/2010/04/sandstonedb-simple-activerecord-styl…> Cheers, Laurent Laffont

2 2

Implementing a "prototype" in Pharo
by Miso April 24, 2010

April 24, 2010

Hi, I'm trying to creating a concept similar to "prototype" (like prototype-oriented programming) in Pharo. What I want is an object's methodDictionary to be stored in itself. So when I send a message to an instance, Pharo should look in the instance's dictionary (as opposed to class' dictionary) and call method stored there. Closest thing I managed to do was create an anonymous class (subclass on my custom class) for each instance and return instance of this class, and store the anonymous class in the instance so I can work with it. Is there any other way to do it, without modifying compiler/VM or writing custom compiler? If not, please give some pointers where to look for some information about "core" of Pharo. Thanks Michael -- View this message in context: http://forum.world.st/Implementing-a-prototype-in-Pharo-tp2063374p2063374.h… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

3 2

How To Bind To External Libraries in Pharo ?
by Bill Rodgers April 22, 2010

April 22, 2010

Hi Experts, How can I connect to libraries of the type that I would "include" in a C program? Must I re-compile Pharo to include them or is there some other way to do this at run-time? I'm looking at some Gnome libraries (GTK+, Gstreamer) which I would like to use from Pharo. Thanks, Bill

3 6

We already have the selected projects and students!
by Mariano Martinez Peck April 21, 2010

April 21, 2010

Hi folks. First of all, let me apologize for being quite offline the last weeks and for not helping too much. I had some personal stuff to do ;) Fortunately, Janko could take care of it and keep it rolling. Thanks a lot Janko. Here are what all of you want to know: the final results of voting for 5 projects to get this year GSoC stipendiums: 1. Cross-Platform Namespaces (score: 80) by GermÃ¡n Leiva, mentor James Foster http://gsoc2010.esug.org/projects/namespaces 2. Generate UML diagrams from Smalltalk code for Pharo (score: 77) by Carla Florencia Griggio, mentor Geert Claes http://gsoc2010.esug.org/projects/uml-from-smalltalk 3. Squeakland education project (score: 76) by Ricardo Moran, mentor Randall Caton http://gsoc2010.esug.org/projects/squeakland-education 4. Progress Towards a Cross-Dialect Smalltalk FFI (score: 74) by Dmitry Matveev, mentor Eliot Miranda http://gsoc2010.esug.org/projects/ffi 5. Visualization of profiling information in Pharo and Squeak (score:73) by Mariano Coca, mentor Alexandre Bergel http://gsoc2010.esug.org/projects/profiling-visualization Congratulations to the accepted students! Be aware that the most "non enjoyable" part of the process has already finished so now it's time to code, hack and have fun! You are the envy of a lot of people, you are being paid to program in something that you really like and enjoy. This is an excellent opportunity so take advantage of it and don't miss it. Please, work hard and deliver something, but never forget to have fun, learn and enjoy. For all the students which were not accepted, don't worry. If your project and proposal is good you will find another opportunity sooner than you expect. For us, this was an excellent opportunity to gather information about really interesting projects and, what's more, to know lots of great students with a passion for Smalltalk. With no doubt, we will keep in touch with all of you and we will eagerly wait your application for next years. Thanks again to all of you for helping us to make the Smalltalk community bigger and better. So stay tuned with us! Cheers Mariano Martinez Peck GSoC admin gsoc-admin(a)esug.org http://gsoc2010.esug.org

2 1

Next smalltalk meetup cologne in june
by Norbert Hartl April 21, 2010

April 21, 2010

Please join us on the 10th of June for the next Cologne Smalltalk User Meetup. Anyone interested in Smalltalk is invited, regardless if you only recently discovered the magic of doing things the Smalltalk way, are a die hard VM-Hacker, want to share your experience on web-development in Seaside or like to chit-chat while enjoying a KÃ¶lsch. Weâre gonna meet at 7pm at Vision Factory GmbH SÃ¶mmeringstr. 75 50823 KÃ¶ln (across the yard at the rear house) If you would like to do a presentation just let us know. Further information you'll find on http://colstme.selfish.org/ regards, Norbert

1 0

Socket>>accept
by Daniel Birkinshaw April 20, 2010

April 20, 2010

Hi, I'm trying to implement a simple server. What I want the code to do is as follows: * Create a socket and listen on a port * Wait for an incoming connection * When a connection is received, fork a process to deal with it and go back to waiting for connections. I believe the following code should accomplish this (I have omitted the loop and the fork because I want to get it working for a single connection before I start with multiple connections!): server := Socket new. server listenOn: 1234. client := server accept. However when I run this I get Socket(Object)>>primitiveFailed. Examining the stack trace reveals the source to be this method: Socket>>primAcceptFrom:receiveBufferSize:sendBufSize:semaIndex: <primitive: 'primitiveSocketAccept' module: 'SocketPlugin'> ^self primitiveFailed When I take a look in /usr/local/lib/squeak/3.11.3-2135 there are lots of plugins, but no SocketPlugin. Swazoo seems to work fine without it and all of the tests in the NetworkTests package pass.

4 13

Traits tutorial/example
by Johan Fabry April 19, 2010

April 19, 2010

Hi all, is there a traits tutorial or some example material that I can peruse to get started? -- Johan Fabry jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry PLEIAD Lab - Computer Science Department (DCC) - University of Chile

3 4

[CfP] DLS'10
by Pascal Costanza April 19, 2010

April 19, 2010

Dynamic Languages Symposium 2010 October 18, 2010 Co-located with SPLASH (OOPSLA) 2010 In cooperation with ACM SIGPLAN John Ascuaga's Nugget, Reno/Tahoe, Nevada, USA http://www.dynamic-languages-symposium.org/dls-10/ ***** Call for papers ***** The 6th Dynamic Languages Symposium (DLS) at the conference formerly known as OOPSLA is a forum for discussion of dynamic languages, their implementation and application. While mature dynamic languages including Smalltalk, Lisp, Scheme, Self, Prolog, and APL continue to grow and inspire new converts, a new generation of dynamic scripting languages such as Python, Ruby, PHP, Tcl, and JavaScript are successful in a wide range of applications. DLS provides a place for researchers and practitioners to come together and share their knowledge, experience, and ideas for future research and development. DLS 2010 invites high quality papers reporting original research, innovative contributions or experience related to dynamic languages, their implementation and application. Accepted Papers will be published in the ACM Digital Library. Areas of interest include but are not limited to: * Innovative language features and implementation techniques * Development and platform support, tools * Interesting applications * Domain-oriented programming * Very late binding, dynamic composition, and runtime adaptation * Reflection and meta-programming * Software evolution * Language symbiosis and multi-paradigm languages * Dynamic optimization * Hardware support * Experience reports and case studies * Educational approaches and perspectives * Object-oriented, aspect-oriented, and context-oriented programming === Submissions and proceedings === We invite original contributions that neither have been published previously nor are under review by other refereed events or publications. Research papers should describe work that advances the current state of the art. Experience papers should be of broad interest and should describe insights gained from substantive practical applications. The program committee will evaluate each contributed paper based on its relevance, significance, clarity, and originality. Accepted papers will be published in the ACM Digital Library. Papers are to be submitted electronically at http://www.easychair.org/conferences?conf=dls2010 in PDF format. Submissions must not exceed 12 pages and need to use the ACM format, templates for which can be found at http://www.acm.org/sigs/pubs/proceed/template.html. === Important dates === Submission of papers: June 1, 2010 (hard deadline) Author notification: July 15, 2010 Final versions due: August 13, 2010 DLS 2010: October 18, 2010 SPLASH/OOPSLA 2010: October 17-21, 2010 === Program chair === William Clinger, Northeastern University, Boston, Massachusetts, USA === Program committee === Robby Findler (Northwestern University) Jeffrey S. Foster (University of Maryland) Lars Thomas Hansen (Adobe Systems) Charlotte Herzeel (University of Brussels) S. Alexander Spoon (Google) Eric Tanter (University of Chile) Jan Vitek (Purdue University) Alessandro Warth (Viewpoints Research Institute) [to be completed] -- Pascal Costanza, mailto:pc@p-cos.net, http://p-cos.net Vrije Universiteit Brussel Software Languages Lab Pleinlaan 2, B-1050 Brussel, Belgium

1 0

removing packages
by Yoandy RodrÃguez MartÃnez April 18, 2010

April 18, 2010

Hello everyone: I downloaded a package called Asteroid and loaded it into my image. It was a .sar file so i used the install button in file manager and everything worked ok. Now i want to remove it from the image but i don't know how to do it. I've tried deleting the changesets and thought and unload option in monticello context menu: first thing didn't worked, second launched some kind of error console and I had to close the VM. Any hint on how to solve this? Thanks in advance

2 1

Re: [Pharo-users] [Pharo-project] [ANN] Pharo 1.0 released!
by StÃ©phane Ducasse April 16, 2010

April 16, 2010

>> Thanks, Daniel, for posting on reddit! We currently are almost at the top of the list... >> >> >> Cheers, >> Adrian > > Gotta love reddit... > 3 most repeated/discussed topics in comments: > - "I don't know what Smalltalk is, and the site doesn't tell me, not even the about page!" > - "SUCKS, I can't use my favourite text-editor and git!" > - "1 + 2 * 3 = 9 WTF SMALLTALK" > > :D The good news is that at least two know a bit :) Stef

1 0

File Browser question
by Friedrich Dominicus April 16, 2010

April 16, 2010

Maybe I'm dump but, I can not find an easy way to choose a directory but navigating with the mouse. Could it be that there isn't one way to type in the path to a directory? Regards Friedrich

1 0

[ANN] Pharo 1.0 released!
by Adrian Lienhard April 15, 2010

April 15, 2010

Hi all, I'm excited to announce our first official release! Please check out the updated website at www.pharo-project.org. Specific information about what this release provides can be found on www.pharo-project.org/pharo-download/release-1-0 Please help us spread the word! I've written a blog post that can be linked: http://www.pharo-project.org/news?article=pharo-news-3-pharo-1-0-released Cheers, Adrian ___________________ http://www.adrian-lienhard.ch/

12 13

Cologne Smalltalk meetup May/June
by Norbert Hartl April 13, 2010

April 13, 2010

The next smalltalk meetup in cologne will occur end of may / start of june. We are trying to find the best date for it to take place. If you like to join our small happening than please add yourself to the doodle date finding. http://www.doodle.com/6u7msewsgumvkkta This poll will close aprox. in two weeks. thanks, Norbert P.S.: Could someone forward this to squeak-dev as I'm not subscribed there

1 0

Experiences with non RDBs?
by Friedrich Dominicus April 12, 2010

April 12, 2010

I just wonder about experiences with non relational databases like e.g - Magma - Gemstone - others and/or limits of the diverse ORM mappers. - Glorp - Magritte - others Regards Friedrich -- Q-Software Solutions GmbH; Sitz: Bruchsal; Registergericht: Mannheim Registriernummer: HRB232138; Geschaeftsfuehrer: Friedrich Dominicus

5 12

persistent dictionary
by Yoandy RodrÃguez MartÃnez April 9, 2010

April 9, 2010

Hello: I'm trying to persist data froma Dictionary so it can be reconstructed later. Which are my options for object serialization in Pharo???

2 1

Re: [Pharo-users] Install seaside with metacello. examples missing
by Dale Henrichs April 9, 2010

April 9, 2010

1 0

Install seaside with metacello. examples missing
by zekUs April 9, 2010

April 9, 2010

hello, i installed seaside 3.0 into my pharo image with metacello. but scriptacalous and jquery examples are not loaded. when i installed with the script generated from seaside web site, there was examples of these libraries. i used the code below to install: ConfigurationOfSeaside project latestVersion load: 'ALL'. is there way to install examples of scriptacalous and jquery? regards. -- Zekeriya "zekUs" KOÃ - http://zekzekus.com/blog

3 6

removing packages
by Yoandy RodrÃguez MartÃnez April 8, 2010

April 8, 2010

Hi everybody: Is there a way to remove packages other than Monticello repository browser??

3 3

Re: [Pharo-users] Fwd: A problem about SCouchDB library
by zekUs April 7, 2010

April 7, 2010

Hi, I am using latest pharo image. I installed scouchdb and other libraries from squeaksource. As isaid before the inspected stream content looks ok. I will try with a fresh image. May be it works. Thanks for replies. On Apr 7, 2010 12:33 AM, "Igor Stasenko" <siguctua(a)gmail.com> wrote: ..resend :) ---------- Forwarded message ---------- From: Igor Stasenko <siguctua(a)gmail.com> Date: 7 April 201... Oh, i wasn't subscribed to pharo-users (but already do). Thanks for forwarding the mail to me. I replied to zekzekus privately. In short: i can't reproduce the problem in my image. Maybe its because i running it in squeak-based image, not pharo.. But i tend to use/write the code which can't be affected by fork differences. So, zekzekus , please let me know, what image you using and i will try in it. On 6 April 2010 18:41, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > I don't know if Igor ... -- Best regards, Igor Stasenko AKA sig. -- Best regards, Igor Stasenko AKA sig. _______________________________________________ Pharo-users mailing list Pharo-users(a)lists.gforge.i...

3 7