September 2022 - Pharo-users

EXIF / JPEG metadata
by Alistair Grant Nov. 30, 2025

Nov. 30, 2025

Hi Everyone, As far as I can tell, JPEGReadWriter in Pharo 7 doesn't read (or write) the image metadata, e.g. title, keywords, exposure time, etc. Is anyone aware of a package that does? Thanks! Alistair

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Re: [Pharo-users] Personal wiki / information manager
by Evan Donahue Sept. 25, 2023

Sept. 25, 2023

Seems that Pharo is a magnet for this kind of project. I've been writing one as well and using it to organize my research notes. Does anyone working on personal info mgmt tools want to talk offline? I expect we're running into some of the same issues, both conceptual and technical. Evan

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MIDI Interface?
by Stewart MacLean Jan. 13, 2023

Jan. 13, 2023

Hi all, Just wondering what the current state of interfaces to MIDI within Pharo are? I gather that there was one (SoundScores that used primitives), but that seems to have disappeared... Cheers, Stewart

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Inovation Technology Award Submission: Polyphemus
by pmissech Dec. 27, 2022

Dec. 27, 2022

Hello, Although i will not be able to attend ESUG'22, a friend agreed to present one of our projects to the innovation award. **Polyphemus** is aÂ VM related, but public aims at any kind of developers. Particularly, the video submission talks about how to look at an image and how to **recover** dead images. Feel free to contact me if you have any questions ! Enjoy (and vote for Polyphemus!). 5 minutes video, Innovation Technology Award submission: https://youtu.be/zf3cCtNW830 Repository: github.com/hogoww/Polyphemus/ Additionnal information on image recovery: https://github.com/hogoww/Polyphemus/blob/main/Documentation/ResurrectingDe… Cheers !

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UK Smalltalk User Group meeting - Wednesday, 28 September 2022
by Giovanni Corriga Sept. 26, 2022

Sept. 26, 2022

After a two year pause, the ESUG conference returned this past summer when Smalltalkers from all over the world met in Novi Sad, Serbia for a week of presentations, and socials ( https://esug.github.io/2022-Conference/conf2022.html ). For this month's UKSTUG meeting, we'll have an open discussion about what was presented at the conference. If you've been there, join us to tell us what you liked, and why. If you could not go, join us and discover what went down in Novi Sad! This will be an online meeting from home. If you'd like to join us, please sign up in advance on the meeting's Meetup page ( https://www.meetup.com/ukstug/events/288718350/ ) to receive the meeting details. Donât forget to bring your laptop and drinks!

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[Roassal - Spec ] How can I trigger the refresh of an inspector pane
by stephane ducasse Sept. 25, 2022

Sept. 25, 2022

Hi I have a roassal pane in my inspector to display quadtrees. I added the possibility to add a point to the inspected quadtree. But the pane does not refresh I have to do it by hand and I would like to know how I can force the inspector to refresh

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Eelco Visser Commemorative Symposium â 2nd Call for Papers
by Andrei Chis Sept. 21, 2022

Sept. 21, 2022

Due to the untimely passing of Eelco Visser, members of his former research communities TU Delft, CWI, OOPSLA, SLE, and IFIP Working Groups 2.11 & 2.16 have joined in organizing the Eelco Visser Commemorative Symposium. The event will be held on the occasion of the first anniversary of his passing in April of next year. You are cordially invited to contribute to this symposium, by writing a paper and giving a presentation related to Eelco and his influential work, or by just attending. Please see the CfP below. Best regards, The EVCS Organizing Committee ------------------------------------------------------------------------ ------------------------------------------------------------------------ Eelco Visser Commemorative Symposium (EVCS) 5 April 2023 Delft, The Netherlands https://symposium.eelcovisser.org ------------------------------------------------------------------------ Eelco Visser (1966â2022) was Antoni van Leeuwenhoek Professor of Computer Science and Chair of the Programming Languages Group in the Department of Software Technology at TU Delft. His research career started with studies at the University of Amsterdam and CWI, followed by appointments at Oregon Graduate Institute and Utrecht University. He was highly influential in the software language engineering and programming language design communities. His many scientific contributions about meta-languages and domain-specific languages have been of high importance in both the scientific and industrial communities. He was a founding member of IFIP Working Groups 2.11 (Program Generation) and 2.16 (Programming Language Design). Eelco Visserâs work on the cutting-edge language workbench Spoofax started with a ground-breaking publication in 2010, for which he received a Most Influential Paper award at OOPSLA 2020. As a strong advocate of tool-supported programming education, he led the development of WebLab, a learning management system that is in use for a range of programming languages and courses at TU Delft. He also led the design, implementation and use of conf.researchr.org, a content management system for scientific events used for hundreds of international events since 2014. --------------------------- Call for Papers --------------------------- A commemorative symposium for Eelco Visser is to be held on the first anniversary of his untimely passing in April 2022. It will bring together colleagues from various communities, with presentations of papers on topics related to his research and his other academic activities. --------------------------- Topics of Interest --------------------------- Topics of interest include, but are not limited to: - Language engineering - Program transformation - Language workbenches - Declarative language specification - Name binding and scope graphs - Type soundness and intrinsically-typed interpreters - Language specification testing - Language implementation generation - Domain-specific programming languages - DSLs for software deployment - DSLs for web application development - Tool-supported programming education --------------------------- Important Dates --------------------------- - Friday 30 September 2022: Declaration of intent to submit - Friday 28 October 2022: Paper submission deadline - Monday 28 November 2022: Notifications - Wednesday 5 April 2023: Symposium --------------------------- Types of Submissions --------------------------- - **Unpublished research**: These are extended abstracts of novel research contributions related to Eelco Visserâs work. Papers may range from 4 to 8 pages in length, and may optionally include up to 2 further pages of bibliography. Papers will be reviewed by selected members of the relevant research communities. Subsequent submission of full papers including the same results to other venues is encouraged. - **On the relationship between Eelco Visser's work and other frameworks**: These are papers that present some framework and explain its relationship to his work, but without novel research contributions. Papers may range from 4 to 8 pages in length, and may optionally include up to 2 further pages of bibliography. Papers will be reviewed by experts on the relevant topics. - **Personal reflections on Eelco Visser's activities**: These are short papers that recall and reflect upon personal experiences of his contributions in academia or industry. Papers may range from 1 to 4 pages in length, including bibliography. Papers will be lightly reviewed for relevance. --------------------------- Submissions --------------------------- The submission website is on EasyChair (https://easychair.org/my/conference?conf=evcs2023) **Declaration of intent to submit is optional**, but helpful for allocation of appropriate reviewers. It is to include a provisional title, the type of submission, and an indication of the topics covered. **Submitted papers** should be formatted using LaTeX according to the author instructions for the Dagstuhl OpenAccess Series in Informatics (OASIcs) (https://submission.dagstuhl.de/series/details/4#author) respecting the page limits indicated above. --------------------------- Publication --------------------------- All accepted papers will appear in the Proceedings of the EVCS, to be published as a volume in the Dagstuhl OpenAccess Series in Informatics (OASIcs) (https://www.dagstuhl.de/en/publications/oasics) Authors retain copyright. --------------------------- Presentations --------------------------- All accepted papers are to be presented at the symposium. Presenters may choose between 5, 10, and 15-minute slots (including questions) subject to availability. Remote presentations are possible. --------------------------- Organising Committee --------------------------- - Jonathan Aldrich, Carnegie Mellon University - Benoit Combemale, University of Rennes, Inria, and IRISA - Paul Klint, CWI and University of Amsterdam - Ralf LÃ¤mmel, University of Koblenz - Peter Mosses (chair), TU Delft and Swansea University - Friedrich Steimann, FernuniversitÃ¤t in Hagen - Tijs van der Storm, CWI and University of Groningen - Eric Van Wyk, University of Minnesota --------------------------- Local Organisation Committee --------------------------- - Arie van Deursen - Peter Mosses - Roniet Sharabi - ShÃ©mara van der Zwet --------------------------- Contact --------------------------- For all enquiries about the symposium, please use the contact form (https://symposium.eelcovisser.org/contact) or email symposium(a)eelcovisser.org

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Pharo nanoseconds or clock ticks
by Kasper Osterbye Sept. 13, 2022

Sept. 13, 2022

Cheers I am looking for a way to get to the nanosecond or clock ticks of my computer as I want to do some rather low level performance measurements. I have not been able to find it. I am on macos. Is it already in the image, or is there a library I can to load? Best, Kasper

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Pharo CMS
by Siemen Baader Sept. 3, 2022

Sept. 3, 2022

Hi everyone, I was looking for a Pharo CMS. I got the Pier one-click image from www.piercms.com, but it seems there is a hardcoded path in the image. I get the error message: Pharo cannot write to the changes file named /private/var/folders/ImndBm_rpdOz3Bpyfiqvv0d4dc000Ogn/T/AppTranslocation/24424,42 BEB3 4E. BBC5 CMFBIElgi12/3/35/d/Pier app/Contents/Resources/Pier.changes (the image is not there but in my ~/Downloads folder). Any ideas how I can fix this? And what does Pharo.org use for its CMS? thanks, Siemen

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Is there a pragma to disable a critic for a particular method?
by Eric Merritt Sept. 2, 2022

Sept. 2, 2022

Hello Everyone, While I take the critiques seriously, there are times when I will intentionally disregard a specific warning. In these cases, in other languages, I have found it useful to indicate that I am disregarding a warning by adding a pragma to disable that particular warning. I have been looking for similar functionality in Pharo. I found an old (circa 2009) reference to <lint> and <ignoreLintRule> pragmas, but those seem to no longer work. Is there currently a way to disable a specific warning in a method? Thank you, Eric

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