- Pharo-users - lists.pharo.org

Bonjour Service Discovery App available, and FFI library interface help required!
by Stewart MacLean May 25, 2022

May 25, 2022

Ok, after bashing my head against the Spinning Wheel of Death for ages trying to use FFI to interface to the Bonjour service discovery library, I've done it another way using essentially the same design framework, but scraping the command line output from dns-sd with the help of OSSubProcess. This is on a MacOS/M1/Monterey, Pharo 10 setup. This works nicely, but I would still like to get to the bottom of why the FFI doesn't work for this. So I've made all the code available on https://github.com/StewMacLean/Bonjour. You can either download a preloaded image/changes or use Metacello to download and install into a fresh P10 image. Once downloaded, it will select the openApp for the command line interface to run. To run the library interface you need to do the same thing, in that class - please refer to the read me and browse the code. I'd really appreciate any help I can get to get this working. I think it would make a great demonstration app for FFI usage once running. Please sing out with any questions etc. Thanks! Stew MacLean

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SmaCC: Adding conditions to production rules
by Konrad Hinsen May 24, 2022

May 24, 2022

Hi everyone, I am stuck with a problem in SmaCC (of which I am a newbie user). Hoping for suggestions from experts, any kind of pointer is welcome! I have a production rule for infix operators: Term : NonInfixTerm 'arg' (<opIdentifier> 'opName' NonInfixTerm 'arg') * {{InfixOpTerm}} | NonInfixTerm ; According to the syntax rules of my language, infix terms are valid only if all <opIdentifier>s are equal. Otherwise parentheses must be used to disambiguate, as the language has no precedence rules. How can I do this with SmaCC? I don't see how I could do it using the basic features, but maybe with some tweaking on the Pharo side. Thanks in advance, Konrad.

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Please check older Issue tracker entries!
by Marcus Denker May 20, 2022

May 20, 2022

Hi, One problem with a public issue tracker: it accumulates lots of issuesâ¦ This sadly means that issues will not be looked at one by oneâ¦ there are just too many. One thing that is interesting to do is to check the issue that *you* submitted. - Is the issue still relevant? - is the title good and in sync with the issue? - Has it been fixed already ? (it happens!) Then, for every issue there is a ânext stepâ. It can be a good thing to spell out very explicitly what the next step is âWe need to create a Pull Request for the suggested fixâ. Or maybe what is needed is a summary of the huge discussion in the issue tracker entry. Another idea: try to find others to help. E.g. - send a mail to the mailinglist. - ask on discord. Maybe you can find a small group that works on this issue together. Marcus

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Civic Tech, data activism and grassroots innovation for upcoming Colombian elections (Pharo/GToolkit powered)
by Offray Vladimir Luna CÃ¡rdenas May 17, 2022

May 17, 2022

Hi all, We have been working pretty hard lately to create data visualizations from the Twitter discourse of the candidates to the upcoming Colombian presidential elections. It's is an innovative approach combining live coding, reproducible research and data activism, narratives and visualizations. As usual, we try to simplify infrastructure to amplify/diversify participation. To produce our infographics we're using Roassal3 (except for the word cloud, because aesthetics reasons), RSS-Tools, XMLHtml parsers, ReStore and Mustache, among others. You can see more about this in this threads: [1] https://twitter.com/mutabit/status/1526272357425369094 [2] https://twitter.com/mutabit/status/1526235036458135553 We will be sharing more about this project and its behind scenes in the upcoming weeks. If you're instered, you can follow the hashtag https://twitter.com/hashtag/CandidatosEnDatos Retweets are welcomed and pretty appreciated. Cheers, Offray

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UK Smalltalk User Group Meeting - Wednesday, May 25th
by Giovanni Corriga May 14, 2022

May 14, 2022

For our May meeting, Object Guild's Jonathan van Alteren and Erik Stel will give us a preview of Expressive Systems. Expressive Systems is a framework inspired by Richard Pawson's work on Naked Objects ( https://en.wikipedia.org/wiki/Naked_objects ). It allows Object Guild to rapidly develop flexible applications by focusing on the design of behaviorally complete objects in the business domain. By using a novel web application architecture based on CodeParadise ( https://github.com/ErikOnBike/CodeParadise ), it allows direct manipulation of business objects by the user. The goal of the framework is to better support problem solving activities and to empower users by giving them a first-person experience. The framework is currently in a (private) alpha phase of development. There are plans to open source the framework in the future. Jonathan has been developing business applications for various Dutch companies since 2001, in roles varying from programmer to solution architect. In 2018, he got hooked on Pharo/Smalltalk and never looked back. Erik has developed both technical as well as business applications in a variety of areas using a broad range of technologies. Heâs been a Smalltalk addict since using VisualAge in the late 1990âs. This will be a hybrid meetup where we'll connect to Zoom from the The City Pride pub ( https://goo.gl/maps/gxiuohY8z5CvA7wr5 ). If you'd like to join us either via Zoom or in person, please sign up on the Meetup page ( https://www.meetup.com/UKSTUG/events/285546604/ ).

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Blog post on Edit Distance
by bezzazia＠gmail.com May 12, 2022

May 12, 2022

Hello everyone, My name is Abir and I am an intern that is currently working on Pharo and pharo-ai. Lately, I have been workingÂ with Sebastian and Oleksandr on edit distances metrics. I wrote a blog post tutorial about this topic for better understanding. If you are interested, please read it. Any feedback about the blog post or the edit distances in general will be appreciated. Also, if you would like to implement some metrics or you are a potential user, please let us know. Here is the link of the blog post in the pharo-ai wiki:Â <https://github.com/pharo-ai/wiki/blob/master/wiki/Tutorials/edit-distances-…> Here is the repo link in case you want to install it:Â <https://github.com/pharo-ai/edit-distances> Thank you, Abir

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[Pharo-dev] Pharo Launcher 3.0.1: no GUI
by Shaping May 12, 2022

May 12, 2022

From: Shaping <shaping(a)uurda.org> Sent: Wednesday, 4 May, 2022 02:46 To: 'Pharo Development List' <pharo-dev(a)lists.pharo.org> Cc: 'Pharo-users' <pharo-users(a)lists.pharo.org> Subject: [Pharo-dev] Re: [ANN] Pharo Launcher 3.0.1 released! On May 3, 2022, at 6:03 PM, Shaping < <mailto:shaping@uurda.org> shaping(a)uurda.org> wrote: > > This is strange. I tested PharoLauncher 3.0.1 on Windows 10 and had no problems. > Did you try to uninstall the previous launcher first? > > Yes, I did the uninstall. And I just did the uninstall and reinstall again. > > Do you have more information that could help finding the problem? > > No, just an ordinary event log: > > Windows Installer installed the product. Product Name: PharoLauncher. Product Version: 3.0.1. Product Language: 1033. Manufacturer: Pharo project. Installation success or error status: 0. > > > Is everyone else able to open PL 3.0.1 on Windows? I installed it on two machines. On one it worked, and on the other it didnât. On the one where it didnât work, the SDL2.dll file didnât get installed. After adding the file, it opened. Iâm guessing that the virus scanner may be getting in the way. Interesting. I don't have any special antivirus app running, just the default Windows Defender. â¦ I do have SDL2.dll in â¦\AppData\Local\PharoLauncher. Still the GUI doesnât open Hi Christophe. Do we understand why the PL 3.0.1 GUI doesnât open sometimes even when SDL2.dll is present? I have in my PharoLauncher folder 74 items. One of those is the images folder. Is that as it should be? â¦ Should the PL 3.0.1 installer produce a \PharoLancher install folder containing 74 items, of which one is the \images folder? If there is a file/folder list discrepancy, we can start the debugging there. â¦ I rebooted the PC, uninstalled PL 3.0.1, and then reinstalled it. The GUI still doesnât appear, but I have 70 files/folders now (not 74), one of which is \images. The difference seems to be caused by the change in OS state after the reboot. Strange. Any ideas? I still have an SDL2.dll. So, although the absence of this file in Johnâs install explains his missing GUI, it doesnât explain mine. Is anyone besides John and me seeing no PL 3.0.1 GUI on Windows? Shaping

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[ANN] Launchpad v4.4.1 [v4.4.1] released!
by Buenos Aires Smalltalk May 10, 2022

May 10, 2022

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Re: [Pharo-dev] Re: [ANN] Pharo Launcher 3.0.1 released!
by Shaping May 10, 2022

May 10, 2022

On May 3, 2022, at 6:03 PM, Shaping < <mailto:shaping@uurda.org> shaping(a)uurda.org> wrote: > > This is strange. I tested PharoLauncher 3.0.1 on Windows 10 and had no problems. > Did you try to uninstall the previous launcher first? > > Yes, I did the uninstall. And I just did the uninstall and reinstall again. > > Do you have more information that could help finding the problem? > > No, just an ordinary event log: > > Windows Installer installed the product. Product Name: PharoLauncher. Product Version: 3.0.1. Product Language: 1033. Manufacturer: Pharo project. Installation success or error status: 0. > > > Is everyone else able to open PL 3.0.1 on Windows? I installed it on two machines. On one it worked, and on the other it didnât. On the one where it didnât work, the SDL2.dll file didnât get installed. After adding the file, it opened. Iâm guessing that the virus scanner may be getting in the way. Interesting. I don't have any special antivirus app running, just the default Windows Defender. Shaping

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PharoJs with JQuery/JQuery-ui
by voxkmp＠gmail.com May 9, 2022

May 9, 2022

Hi - Can anyone give an example of how to use Jquery-ui in PharoJs? I would like to use PharoJs to generate a page with a jquery-ui Slider widget and process its events through its slide function. To give an illustration - what is the PharoJs equivalent to this javascript (in the $(document).ready function)? $( "#slider" ).slider( { range: false, min: 90, max: 290, value:100, slide: function( event, ui ) { $( "#gradeECF" ).html("ECF:" + ui.value); $( "#gradeElo" ).html( "Elo: " + (ui.value\*7.5 + 700));} } ); Thanks in advance for any help

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