November 2014 - Pharo-users

Re: [Pharo-users] How not to serve an AngularJs application from Pharo
by Stephan Eggermont Nov. 7, 2014

Nov. 7, 2014

Kilon wrote >Really nice I now see the teapot stuff, for example this > >GET: 'demo/common/style.css' -> [ self styleCss ]; > >is really flexible meaning you can interpret http addresses and map them to pharo methods. This a really cool idea indeed, I see now why people are excited about teapot. Excuse my ignorance about web >development but html/css and js always scared me away :D I found it a very easy way to get some existing javascript app delivered fast from Pharo. It needs a lot of refactoring and cleaning up to become maintainable though. Separate classes for the angular components, and the canvas from Seaside to structure the html. A more difficult aspect is how to create the javascript. For (qc)magritte applications it looks like a builder should be able to generate form components and a json data binding. With GT it should even be possible to integrate javascript development directly in the pharo image. And it might be better to use React or Amber or SqueakJS Stephan

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What template libraries are available?
by Friedrich Dominicus Nov. 7, 2014

Nov. 7, 2014

For Pharo ? I know of Mustache, any other contender? Regards Friedrich

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Bug? in Filein
by JosÃ© ComesaÃ±a Nov. 7, 2014

Nov. 7, 2014

I've found this problem in Pharo 3 (seems to happen in Pharo 4 too): Do: 1. Fileout Seaside-Tests-Core 2. Remove Seaside-Test-Core 3. File in the file created in step 1 You will find: a. The structure of the package changes. b. Comments for WaContextTest are lost c. You get a bunch of errors in Transcript while filing in Any ideas? Thanks in advance.

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FileBrowser confusion
by Peter UhnÃ¡k Nov. 7, 2014

Nov. 7, 2014

Is anyone actually using FileBrowser? Because either no one does or I doing something wrong. My problem is that it is very uncomfortable to navigate filesystem. There is no way to quickly navigate to common folders (like roots of system drives and home directory). Also hidden files/folders are shown by default which means there is always hundred folders. I would love to have these things streamlined, ideally with the option to add custom shortcuts (see picture)... so much for opening files. As far as saving goes the only way I found to actually save file is to manually type the full path without the option to choose a folder through GUI. But since this is the way the "Save image as..." works it leads me to believe that no one is actually using it regularly, because outside of saving a file to same folder as image such behavior seems useless. So is this something that has been considered or no one really needs this? Thanks, Peter

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[Oharo-users] Copy AST
by Mark Rizun Nov. 6, 2014

Nov. 6, 2014

Hi everyone, I want to get a deep copy of ast. But deepCopy doesn't work:) What I mean: | ast1 ast2 | ast1 := RBParser parseRewriteExpression: 'self'. ast2 := ast1 copy."or without copy" ast1 stop: 99. ast2 stop When evaluate this you get 99. I want it to be 4. So I want to have separate object ast2 with separate data, not depending on changes made in ast1. As I said deepCopy doesn't work. Any ideas? Thanks, Mark

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inria survey
by stepharo Nov. 6, 2014

Nov. 6, 2014

Hi guys you can help us to improve our communication as a research center. Please take some minutes to fill this little survey. Stef ---------------------------------- VERSION FRANÃAISE ---------------------------------- CrÃ©Ã© depuis 2002 Ã Lille, le centre de recherche Inria Lille - Nord Europe souhaite faire un point dâÃ©tape sur sa notoriÃ©tÃ© et sâinterroge sur lâimage quâil vÃ©hicule auprÃ¨s des diffÃ©rents publics avec lesquels il collabore. Industriels, partenaires acadÃ©miques, collectivitÃ©s, chercheurs, journalistes, fournisseurs, Ã©tudiants, lycÃ©ensâ¦ Nous voulons savoir si vous nous connaissez bien et si vous auriez envie dâen savoir plus. Vos avis nous intÃ©ressent alors nâhÃ©sitez pas Ã complÃ©ter le questionnaire avant le 28 novembre. David Simplot-Ryl directeur Inria Lille - Nord Europe En pratique ; Lien vers le questionnaire : https://sondages.inria.fr/index.php/632788?lang=fr ClÃ´ture de lâenquÃªte le 28 novembre. Temps de rÃ©ponse au questionnaire : moins de 10min. Les rÃ©sultats de lâenquÃªte seront communiquÃ©s en 2015. http://www.inria.fr/centre/lille/actualites/enquete-sur-l-image-du-centre-i… -------------------------------- ENGLISH VERSION -------------------------------- Created since 2002 in Lille, the Inria Lille - Nord Europe research center wish to make a report on its reputation and its image. Industrial and academic partners, researchers, journalists , suppliers, students,... We want to know if you know us well and if you would like to learn more. We are interested in your opinion then do not hesitate to complete the questionnaire before 28 November. David Simplot- Ryl director Inria Lille - Nord Europe David Simplot-Ryl director Inria Lille - Nord Europe In practice ; Link to the survey :https://sondages.inria.fr/index.php/632788?lang=fr (select English) Deadline to respond 28 November. Questionnaire response time : less than 10 minutes. The results of the survey will be released in 2015. http://www.inria.fr/en/centre/lille/news/inria-lille-nord-europe-survey

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Start up actions
by PBKResearch Nov. 5, 2014

Nov. 5, 2014

Hello I have a puzzle as to how to implement a start-up action. I would like to have a monitoring process running in the background while I am working on my project, and it would be easier if this process started up automatically when the image is loaded. I have hunted through my current image, and I have found three possibilities: a. Include a file named startup.st in the same folder as the image, and put a script to start the process in this file. b. Add a startup: method to the class controlling the background process, and do Smalltalk addToStartUpList: MyClass. c. Do Smalltalk addDeferredStartUpAction: [block which starts the process]. The first looks easiest, but it seems untidy to rely on having a separate file sored with the image. All these methods should work; is there any reason to prefer any one of them, or any other better method? Thanks in advance for any advice. Peter Kenny

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FFI structs
by Annick Fron Nov. 5, 2014

Nov. 5, 2014

I I have a C struct with a char* struct result { char* time } I define an ExternalStructure in FFI , with one field of type char* (note that the syntax char [5] is not accepted ! ). defineFields generates the accessors time and time: If I use time: â05:45â I get an error. How do I set a string value in an ExternalStructure ? Annick

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Script as first class citizen
by Hilaire Nov. 5, 2014

Nov. 5, 2014

Hello, Within DrGeo I would like to extend the capability of script. As for now, a script is just method user written method integrated in an existing DrGeoUserScript class. It is a very light implementation, and it makes it easy to export the script in the sketch (a XML file). However it is very limited as there are no way to provide type checking on the script argument, customized view for the script in the canvas, external support as comments, name scrip., etc. I will be curious to read about any opinion how to improve it. Thanks Hilaire -- Dr. Geo - http://drgeo.eu iStoa - http://istoa.drgeo.eu

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Render PDF / Web Document in Pharo
by Sean P. DeNigris Nov. 5, 2014

Nov. 5, 2014

Is it possible to display either in a Morphic world? As a start, even a non-interactive preview would be valuable... Thanks. ----- Cheers, Sean -- View this message in context: http://forum.world.st/Render-PDF-Web-Document-in-Pharo-tp4788409.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Memoization Question
by phil＠highoctane.be Nov. 4, 2014

Nov. 4, 2014

How can I do memoization in Pharo? I mean, a generic mechanism that will help me wrap the caching around the method invocations / messages. I have expensive calls that do not have to refresh their results as often as they are called. TIA Phil

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Porting to a MAC
by Ian Bartholomew Nov. 4, 2014

Nov. 4, 2014

Hi All. I'm a long time (25+ years) Smalltalk user, but only 3 days using Pharo so I'm still stumbling around a bit (lot). I have an app that I need to run on Windows and a Mac (possibly Linux at a later date). I've ported the code over from Dolphin and got it working using Pharo 3.0 on my Windows box. I am just going to set the app running, save the image and then send the whole Pharo folder over to the Windows user - that will work won't it? The problem is the Mac user. As I can't set up the Mac image in the same way (I have no access to a Mac box) I was wondering if I could just replace the changes,sources and image files in the Mac download with the ones I've set up for Windows and send that to him. Would that work or do I need to send him file outs of my code and talk him through install and set-up. Thanks

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OSProcess command never ends
by Offray Vladimir Luna CÃ¡rdenas Nov. 4, 2014

Nov. 4, 2014

Hi all. I'm having problems with OSProcess. When I run "OSProcess command: 'my command'" on Linux, the Moose playground says that "an ExternalUnixOSProcess with pid 20887 on /bin/sh (running)", but the external process never ends. What I'm missing? Cheers, Offray

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Zoomable & Infinitely scrollable PasteupMorph
by Sean P. DeNigris Nov. 3, 2014

Nov. 3, 2014

I need to create such a beast. What is my best bet to build on top of? I see the GT playground seems to have something like this for the Roassal previews... ----- Cheers, Sean -- View this message in context: http://forum.world.st/Zoomable-Infinitely-scrollable-PasteupMorph-tp4778229… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Reactive Programming - anything like that in our realm?
by phil＠highoctane.be Nov. 2, 2014

Nov. 2, 2014

I was reading https://gist.github.com/staltz/868e7e9bc2a7b8c1f754 It looks like that this is where the new apps are going. Do we have anything on that Rx front? Phil

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