- Pharo-users - lists.pharo.org

[UpdatedPharoByExample] Collection chapter
by stepharo Feb. 14, 2016

Feb. 14, 2016

Hi guys here is a new chapter for UpdatedPharoByExample. Stef

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Recommended VM on Raspberry Pi ?
by Sven Van Caekenberghe Feb. 13, 2016

Feb. 13, 2016

Hi, I have been using the PharoS VM for a Pharo 4 based app on Raspberry Pi (Rasbian). This VM is quite slow. Now that Pharo 5 is Spur based, what is the recommended VM on that platform ? I was hoping to use a faster VM, if that is available. Is anyone having some concrete experience in this area ? Thx, Sven

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[ANN] airflowing shut down
by Sebastian Sastre Feb. 13, 2016

Feb. 13, 2016

Hi guys, TL;DR: it didnât reached expectations so weâre shutting down and moving on into other business that are doing great. More details in the release available here: http://airflowing.com Including references to the parts weâve open-sourced The Smalltalk community has a special place in my heart :) Thank you guys

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OS(Sub)Process on Raspberry Pi ?
by Sven Van Caekenberghe Feb. 13, 2016

Feb. 13, 2016

Hi, What is the state of OS(Sub)Process on Raspberry Pi ? I want a Pharo application to be able to execute some (simple, no IO) OS commands on Raspbian. Can that be done ? Does it work for Pharo 4, 5 ? What should I load ? Thx, Sven

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syntax highlighting / editing STON files
by Peter UhnÃ¡k Feb. 12, 2016

Feb. 12, 2016

Hi, is there syntax highlighting/validation for STON files? I'm currently editing STON file like this one https://github.com/hpi-swa/smalltalkCI#minimal-smalltalkston-template and obviously I would prefer if I knew that I forgot comma/typo/whatever when editing the file and not when the CI build fails. Do we have the technology? :) Thanks, Peter

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Dr. Geo on gravity
by Hilaire Feb. 12, 2016

Feb. 12, 2016

A nice article about a gravity simulation designed with Dr. Geo. Written by a college teacher. http://blog.drgeo.eu/post/2016/Drawing-the-Parabolic-Trajectory-of-an-Objec… Hilaire -- Dr. Geo http://drgeo.eu

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How to generate "Content-Type: application/octet-stream" with Zinc client
by chicoary Feb. 11, 2016

Feb. 11, 2016

I thank in advance if anyone can help me. The code below: ZnClient new url: 'http://127.0.0.1:5001/add?stream-channels=true'; addPart: (ZnMimePart fieldName: 'file' fileNamed: 'file.txt'); post. generates the following response using netcat: nc -l 5001 POST /add?stream-channels=true HTTP/1.1 User-Agent: Zinc HTTP Components 1.0 Content-Length: 194 Host: 127.0.0.1:5001 Content-Type: multipart/form-data;boundary=Boundary-Zn-IDMNDZTQ Accept: */* --Boundary-Zn-IDMNDZTQ Content-Disposition: form-data;name="file";filename="file.txt" Content-Length: 16 Content-Type: text/plain;charset=utf-8 file.txt content --Boundary-Zn-IDMNDZTQ-- however I would like to get: nc -l 5001 POST /add?stream-channels=true HTTP/1.1 User-Agent: Zinc HTTP Components 1.0 Content-Length: 194 Host: 127.0.0.1:5001 Content-Type: multipart/form-data;boundary=Boundary-Zn-IDMNDZTQ Accept: */* --Boundary-Zn-IDMNDZTQ Content-Type: application/octet-stream Content-Disposition: form-data;name="file";filename="file.txt" Content-Length: 16 Content-Type: text/plain;charset=utf-8 file.txt content --Boundary-Zn-IDMNDZTQ-- I not figured out how to get the extra line "Content-Type: application / octet-stream" using Zinc. ----- http://chicoary@gmail.com -- View this message in context: http://forum.world.st/How-to-generate-Content-Type-application-octet-stream… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Re: [Pharo-users] Huge image
by Dale Henrichs Feb. 11, 2016

Feb. 11, 2016

David, I don't have a direct solution, but I have been playing with an analysis technique for solving this particular type of problem: scads of Strings and a need to "make sense of the reference graph". If you look at this example[1], you'll see that there are 202K instances of String (this example is from a GemStone db). the nodes pointing to the String node, show that of the 202K strings, there are 70K instances of Array referencing one or more of the 202k strings; 47K instances of MCVersionInfo and 43K MethodVersionRecord instances. I've found that this approach can help you understand why you have so many strings ... The basic technique is to gather the instances of String, then for each instance of string, gather the collection of objects that reference the String instance and summarize the reference by class instance count and keep an IdentitySet of the instances referencing Strings by class so that you can build the next level of references .... For GemStone, this information is displayed using Roassal2 and the calculations are done by scanning a backup of the repository... You could probably brute force calculate this in Pharo (be sure to isolate the objects that you are using in your analysis from the set of objects being analyzed otherwise things get out of control ... HTH, Dale [1] https://github.com/dalehenrich/obex#class-instance-counts-based-on-selected…

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Re: [Pharo-users] [Bulk] smalltalk banner or poster for FOSSASIA conference.
by HernÃ¡n Morales Durand Feb. 10, 2016

Feb. 10, 2016

Hi Martin, Last year there was a poster made by Adam adam(a)234.cz I don't know if that fits your goals, the poster license or if he's still around, maybe you could check with him if there's an update. Cheers, HernÃ¡n 2016-02-06 11:21 GMT-03:00 Martin BÃ¤hr <mbaehr(a)email.archlab.tuwien.ac.at>: > hi, > > as i have been working on smalltalk projects within FOSSASIA for Google > Summer > of Code and Google Code-In, as well as run smalltalk workshops at the > FOSSASIA > conference, i have been invited to run a small booth and put up a banner > about > smalltalk. > > details about the conference are here: http://2016.fossasia.org/ > > since time is short, i wonder if a banner design for pharo already exists, > that > i could use. alternatively, a poster, that can be stretched, or two > posters on > top of each other. if there is nothing ready, maybe the design that was > posted > to the list most recently can be stretched into a banner. > > my workshop this year will be using roassal, so something about that would > also > work, or other smalltalk topics, like squeak, etoys, etc... > > it would of course also be nice to meet other smalltalkers in singapore > next > month. > > 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 > secretary > beijinglug.org > mentor > fossasia.org > foresight developer foresightlinux.org > realss.com > unix sysadmin > Martin BÃ¤hr working in china > http://societyserver.org/mbaehr/ > >

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Feb. 10, 2016

Hi, try something like: tm := TreeModel new. tm roots: yourCollection. tm hasChildrenBlock: [ :item | item isDictionnary ]. tm childrenBlock: [ :item | item keysAndValues ]. I wrote that from my phone but I think it is working. Else it shows you the idea :) Julien Khrystyna Mykhailiuk <chrismihaylyk(a)gmail.com> a Ã©critÂ : >Hi, all! > >I have OrderedCollection of Dictionaries and I want to display content of >each Dictionary using TreeModel. >I wrote these code, but it doesn't work correctly. And I get some errors. > >mt := TreeModel new. >mt roots: (collectionFirst select: OrderedCollection new); >childrenBlock: [ :item | item ]. >mt openWithSpec. > >(This is screenshot of my work) ><http://forum.world.st/file/n4876653/ScreenPharoTreeModel.png> > >I need to show each pair of Dictionary in new node. > >Can you help me, please? > > > >-- >View this message in context: http://forum.world.st/How-to-display-Dictionary-using-TreeModel-tp4876653.h… >Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

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