October 2021 - Pharo-users - lists.pharo.org

Artefact utf8-textjustify and pagination
by Oswall Verny Arguedas C. Oct. 19, 2021

Oct. 19, 2021

Greetings, I am starting with Artefact for pdf in Seaside App. Documents are contracts. I do not achieve the following functions: -Justification of text in paragraphs. -Pagination. -Letters with accents Ã¡ Ã© Ã Ã³ Ãº Ã± Ã (utf8) or (iso8859-1). These functions are possible?. Thanks in advance Oswall

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Splitting a single HTTP Request into multiple concurrent requests
by Sven Van Caekenberghe Oct. 19, 2021

Oct. 19, 2021

Hi, Somebody asked how you would split single HTTP Request into multiple concurrent requests. This is one way to do it. Upfront I should state that - I do no think this is worth the trouble - It is only applicable to large downloads (even larger than in the example) - The other side (server) must honour Range requests correctly (and be fast) This one is based on the data used in the ZnHTTPSTest(s)>>#testTransfers units test. More specifically the files available under https://s3-eu-west-1.amazonaws.com/public-stfx-eu/ such as https://s3-eu-west-1.amazonaws.com/public-stfx-eu/test-2050.txt for the smallest one. sizes := (Integer primesUpTo: 100) collect: [ :each | 1024 * each + each ]. size := sizes last. concurrency := 11. step := size // concurrency. ranges := (0 to: size - 1 by: step) collect: [ :each | { each. (each + step) min: size } ]. chunks := Array new: ranges size. done := Semaphore new. ms := 0. [ ms := Time millisecondClockValue. ranges withIndexDo: [ :range :index | [ | client | (client := ZnClient new) https; host: 's3-eu-west-1.amazonaws.com'; addPath: 'public-stfx-eu'. client addPath: ('test-{1}.txt' format: { size }). client headerAt: #Range put: ('bytes={1}-{2}' format: range). client get. client close. chunks at: index put: client contents. done signal ] forkAt: Processor lowIOPriority ]. ranges size timesRepeat: [ done wait ]. ms := Time millisecondsSince: ms. (String empty join: chunks) inspect. ] fork. This takes about 2 seconds total for me. [ ZnClient new https; host: 's3-eu-west-1.amazonaws.com'; addPath: 'public-stfx-eu'; addPath: 'test-99425.txt'; get. ] timeToRun. Which is roughly similar to the single request (again, for me). Two things to note: connection time dominates, in the parallel case, 11 independent requests were executed, so concurrency is definitively happening. The largest size file is just 100k, split in about 10 parts, which is most probably not enough to see much effect from doing things in parallel. HTH, Sven

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Virtual Reality-based programming environment
by Alexandre Bergel Oct. 18, 2021

Oct. 18, 2021

Hello, We are a small and energetic team who want to push the state of the art in Virtual Reality-based programming environment. We have an advanced prototype, and we need help of participants to be part of our experiment involving our software called VRIDE, a fully immersive VR programming tool. In this experiment: â¢ You will be given a set of tasks to perform using our platform. The experiment should not take more than 1 - 1.5 hours. â¢ After that, you will have to answer some surveys and other final questions. If you know how to program in Pharo, have access to a any VR device, such as Oculus Quest or HTC Vive, and would like to be part of the experiment, please reply to this email. The overall experiment is very enjoyable, fun, and you will experience what we will believe programmers will use in the future. We hope you are part of this. Regards, Victor Segura, Leonel Merino, Alexandre Bergel and Geoffrey Hecht -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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UK Smalltalk User Group meeting - Wednesday, October 27th
by Giovanni Corriga Oct. 8, 2021

Oct. 8, 2021

For this month's meeting, Cincom Smalltalk ( https://www.cincomsmalltalk.com/main/ ) product manager Arden Thomas will discuss recent product changes and improvements and demonstrate some tools and features of ObjectStudio and VisualWorks 9.1. Arden ( https://twitter.com/ArdenTCST ) started working with Smalltalk in 1986, looking for a better way to do software development â and he found it. Arden built factory floor layout tools for IBM, worked at ParcPlace as an SE, an instructor, and consultant, and at a hedge fund building financial analysis tools. Arden is currently the product manager for Cincom Smalltalk. 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/280378922 ) to receive the meeting details. Donât forget to bring your laptop and drinks!

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possible dates for Pharo Days 2022 :)
by stephane ducasse Oct. 7, 2021

Oct. 7, 2021

Hello guys We are super excited because we want to organise PharoDays at Lille We are checking some possible dates and we would like to know your point of view. right now we were thinking that 3/4 or 10/11 march would be good. So let us know. S

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Maintainer of smalltalk.org?
by James Foster Oct. 6, 2021

Oct. 6, 2021

I recently came across smalltalk.org <http://smalltalk.org/> and am curious to know who maintains it. I tried sending an email to the contact but the address bounced. Thanks! James Foster

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