February 2015 - Pharo-users

Citizen example for manipulating a bibtex file
by Offray Vladimir Luna CÃ¡rdenas May 1, 2015

May 1, 2015

Hi, I'm using a Zotero collection for keeping track of several references I have found for my article about the experience of the outline/tree-like metaphor for writing inside Pharo (as soon as I have a presentable working draft I hope to share it with you). Now I want to make a post-processing of the bibtex file exported from Zotero. The idea is to use "shorttitle" field instead to replace the Zotero auto-generated one and have custom keys. So for example instead of: ======= @misc{_holistic_????, title = {Holistic software assessment (Uni Zurich - 2011) on Vimeo}, shorttitle = {Girba-holistic-2011}, url = {http://vimeo.com/42073344?from=outro-local}, urldate = {2014-08-19}, note = {00000} } ======= I would like to have: ======= @misc{Girba-holistic-2011, title = {Holistic software assessment (Uni Zurich - 2011) on Vimeo}, shorttitle = {Girba-holistic-2011}, url = {http://vimeo.com/42073344?from=outro-local}, urldate = {2014-08-19}, note = {00000} } ======= I have already installed Citizen and open it on the browser to see the code, but I can find any place to start with examples. Any advice on how to solve this issue will be appreciated. Cheers, Offray

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moving to git and preserving monticello history
by Peter UhnÃ¡k April 29, 2015

April 29, 2015

Hi, we would like to switch our project over to git, however is it possible to preserve the history? I.e. to convert mcz (or wherever monticello stores it) to git commits, or do I have to start from scratch? Thanks, Peter

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[ANN] ArchLinux pharo-vm / pharo-launcher packages
by Laurent Laffont April 20, 2015

April 20, 2015

Hi ArchLinux users, you can now install pharo vm on Arch with: $ yaourt pharo-vm-latest then $ pharo /path/to/your/image There's also a pharo-launcher package that depends on pharo-vm: $ yaourt pharo-launcher then $ pharo-launcher or use your favorite desktop main menu and click on the Pharo icon AUR entries: https://aur.archlinux.org/packages/pharo-vm-latest/ https://aur.archlinux.org/packages/pharo-launcher/ PKGBUILDs are versionned on https://github.com/lolgzs/pharo-aur Thanks for testing ! Regards, Laurent

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Messaging solutions for Pharo
by Esteban A. Maringolo April 8, 2015

April 8, 2015

Hi, I'll be needing to add bidirectional messaging to our current Android (Java) application, and as usual I'm expecting to manage the server side of the communication with Pharo. I'm evaluating two alternatives, but I'm in open to other, proven, options. Option 1. WebSockets Open a WebSocket on each device, and push/retrieve messages from each of these, tracking the device id if I need to recreate a new socket (avoiding recreating new sockets in case of connectivity issues, very common). Option 2. MQTT [1] This is basically a mobile oriented MQ, super low footprint on mobile. For what I saw, I could implement the server using an intermediate MQ (RabbitMQ) and use STOMP to connect to it. Option 3. XMPP [3] Provides several features I'll need in the future, like file transfer in addition to regular text messaging. It is very well supported in Android with Smack [4], but I don't know if we have a Pharo server for it, or if somebody ever played with it. By means of simplicity and use load I favor option 1, because I can understand it better, and as everything moves towards web based technologies, I could implement WAMP [5] on top of that in the future. Right now I'd need to have a hundred websockets opened at the same time, which doesn't sound like a heavy load to me, but I certainly don't know. In the future it could be an order of magnitude bigger, and that's why I don't discard more complex solutions like XMPP or MQTT. Regards! [1] http://mqtt.org/ [2] https://github.com/svenvc/docs/blob/master/neo/stamp.md [3] http://xmpp.org/ [4] http://www.igniterealtime.org/projects/smack/ [5] http://wamp.ws/

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Code formatting - preserving newlines and comments
by Peter UhnÃ¡k March 25, 2015

March 25, 2015

Is it possible to configure formatter to preserve empty lines and line comments? e.g. -------------- myMethod someCode. < empty line that I would like to preserve > moreCode. --------------- the formatter also automatically puts comments on the end of the previous statement. e.g. ------ someCode. "a comment" moreCode. ---- ends up as ---- someCode. "a comment" moreCode. ----- Both those behaviors seems odd to me. I've seen empty newlines and line comments in Pharo code... so either I missed some setting or people just don't use the formatter? Thanks, Peter

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Question about loading Roassal2 in Pharo4
by Sven Van Caekenberghe March 24, 2015

March 24, 2015

Hi, I just loaded Roassal2 in Pharo4 using the following expression: Gofer it smalltalkhubUser: 'ObjectProfile' project: 'Roassal2'; configurationOf: 'Roassal2'; loadStable. When I try one of the examples I see that I am missing some GT presentations specific to Roassal. How should I load those ? Thx, Sven

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Aconcagua Documentation
by Sean P. DeNigris March 19, 2015

March 19, 2015

Is there anything besides http://stephane.ducasse.free.fr/Teaching/CoursAnnecy/0506-M1-COO/aconcagua-… ? There are not many class comments and the tests were a bit overwhelming for me... Specifically I'm searching for anything built-in to present measures in the "most tidy" representation e.g. "125 dollars" instead of "12500 cents", "10 cups" instead of "480 teaspoons", etc. ----- Cheers, Sean -- View this message in context: http://forum.world.st/Aconcagua-Documentation-tp4759781.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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[ANN] RProjectConnector V1.0
by Blondeau Vincent March 17, 2015

March 17, 2015

Hello everyone, I am glad to announce the first version of the RProjectConnector, a binding between Pharo and R using NativeBoost. You can now call directly your R methods from Pharo: data := (1 to: 1000) collect: #yourself. res := (#acf asRFunctionWith: {data}) eval To use it, you should copy the R libraries near the Pharo VM (see the documentation on SmalltalkHub to see how to proceed) and Gofer it smalltalkhubUser: 'VincentBlondeau' project: 'RProjectConnector'; configuration; loadStable Don't forget to relaunch Pharo after the installation to be able to use the connector. The sources are available on Smalltalkhub: http://smalltalkhub.com/#!/~VincentBlondeau/RProjectConnector if you want to participate, just ask me! Cheers, Vincent BLONDEAU ________________________________ Ce message et les pi?ces jointes sont confidentiels et r?serv?s ? l'usage exclusif de ses destinataires. Il peut ?galement ?tre prot?g? par le secret professionnel. Si vous recevez ce message par erreur, merci d'en avertir imm?diatement l'exp?diteur et de le d?truire. L'int?grit? du message ne pouvant ?tre assur?e sur Internet, la responsabilit? de Worldline ne pourra ?tre recherch?e quant au contenu de ce message. Bien que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout virus, l'exp?diteur ne donne aucune garantie ? cet ?gard et sa responsabilit? ne saurait ?tre recherch?e pour tout dommage r?sultant d'un virus transmis. This e-mail and the documents attached are confidential and intended solely for the addressee; it may also be privileged. If you receive this e-mail in error, please notify the sender immediately and destroy it. As its integrity cannot be secured on the Internet, the Worldline liability cannot be triggered for the message content. Although the sender endeavours to maintain a computer virus-free network, the sender does not warrant that this transmission is virus-free and will not be liable for any damages resulting from any virus transmitted.

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Pharo 4 - current state?
by sergio_101 March 17, 2015

March 17, 2015

Hey, all. I had an hour last night to start playing with pharo 4. in the hour that played with it, there are already features i miss when going back to pharo 3 for getting work done. my questions is, how close is pharo 4 to be useable in a day to day environment? can i use it as a part of my regular development? what can i do to help move everything along? thanks!

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Evaluating scripts within Pillar
by Alexandre Bergel March 3, 2015

March 3, 2015

Hi! I am now digging into Pillar. My goal is to be able to insert Roassal script and having it executed. Scripts provided within [[[ ]]] may be evaluated using the variable âeval=trueâ. Here is an example: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= PRHTMLWriter defaultConfigurations anyOne inputString: '100 factorial = [[[eval=true stream nextPutAll: 100 factorial asString ]]]'; outputFile: 'myFirstPillarExport.html' asFileReference; export -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= âstreamâ is a hardcoded variable name which represents the stream on which you have to write your result. What you write in stream is pillar-friendly. This means you can write something like: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= PRHTMLWriter defaultConfigurations anyOne inputString: '100 factorial = [[[eval=true stream nextPutAll: ''""'', 100 factorial asString, ''""'' ]]]'; outputFile: 'myFirstPillarExport.html' asFileReference; export -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= I have tried to insert some Roassal visualization, and it works pretty well. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= PRHTMLWriter defaultConfigurations anyOne inputString: ' !!Example of a factorial 50 factorial = [[[eval=true stream nextPutAll: ''""'', 100 factorial asString, ''""''. ]]] !!Some Roassal visualizations Here is a small Mondrian example [[[eval=true b := RTMondrian new. b nodes: (1 to: 100). b layout grid. b build. aView := b view. RTHTML5Exporter new insert: aView named: ''Roassal test'' inPillarStream: stream ]]] Another example with Grapher this time: [[[eval=true b := RTGrapher new. b extent: 300 @ 200. ds := RTStackedDataSet new. ds interaction popupText. ds barShape width: 10. ds points: #(4 5 1 -2 5 6). b add: ds. "b axisX noLabel; noTick. " b build. RTHTML5Exporter new insert: b view named: ''A Graph'' inPillarStream: stream ]]] '; outputFile: 'myFirstPillarExport.html' asFileReference; export -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Pillar is very well done! Congrats to the authors! Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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