Squeak-dev March 2020

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38 participants
318 discussions

Question about inlining | How to access named temps in FullBlockClosure?
by Marcel Taeumel 03 Apr '20

03 Apr '20

Hi Eliot, hi all! I am having issues with the inlining of #to:do: in combination with decompiling a block and accessing the temps. Here is a piece of code that works as expected: | result context | result := OrderedCollection new. (1 to: 5) do: [:each | result add: [:object | object + each]]. context := (result at: 3) outerContext. context namedTempAt: (context tempNames indexOf: 'each'). " == 3" HOWEVER, using #to:do: the result changes because code gets inlined: | result context | result := OrderedCollection new. 1 to: 5 do: [:each | result add: [:object | object + each]]. context := (result at: 3) outerContext. context namedTempAt: (context tempNames indexOf: 'each'). " == 6" What is my goal here? I want to unpack the block statement and fill in the temps. For all those [:object | object + each] in "result" I want to collect the strings: -> 'object + 1' -> 'object + 2' -> 'object + 3' -> 'object + 4' -> 'object + 5' Is there a way to access the values of temps when the block closures are created this way? Best, Marcel

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Minor but annoying styling bug
by Stéphane Rollandin 01 Apr '20

01 Apr '20

Hello, There is a minor but irritating bug in parentheses emphasing. To see it, please load the attached morph (a workspace) in a 5.3 image. On the line indicated by the arrow, an opening parenthesis that gets automatically highlighted in bold will stay so instead of reverting to normal. To try it: erase that line, type anything, open a parenthesis (and if you have auto-enclose on as it is by default, remove the closing one that just appeared) then type a closing parenthesis. The first one is now bold. Keep typing: it will stay bold. This rather annoying, because there is no simple way to revert to normal emphasis: one needs to type another parenthesis and erase the bold one. This happens only on some lines, and it seems also only if bold text is already present before and after these lines. Stef

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squeak.sh kernel check error
by Ron Teitelbaum 31 Mar '20

31 Mar '20

Hi All, The 64 bit linux version at: http://files.squeak.org/5.3/Squeak5.3-19431-64bit/Squeak5.3-19431-64bit-202… squeak.sh has an error in it This code if [[ "${major}" -lt "${min_major}" ]] || \ [[ "${major}" -le "${min_major}" && "${*major*}" -lt "${min_minor}" ]] || \ [[ "${major}" -le "${min_major}" && "${*major*}" -le "${min_minor}" && "${patch}" -lt "${min_patch}" ]]; then showerror "Linux kernel ($(uname -r)) needs to be newer than ${min_major}.${min_minor}.${min_patch}." exit 1 fi Should be changed to: if [[ "${major}" -lt "${min_major}" ]] || \ [[ "${major}" -le "${min_major}" && "${*minor*}" -lt "${min_minor}" ]] || \ [[ "${major}" -le "${min_major}" && "${*minor*}" -le "${min_minor}" && "${patch}" -lt "${min_patch}" ]]; then showerror "Linux kernel ($(uname -r)) needs to be newer than ${min_major}.${min_minor}.${min_patch}." exit 1 fi All the best, Ron Teitelbaum

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Coming out
by Bert Freudenberg 31 Mar '20

31 Mar '20

Hi all, Today is Transgender Day of Visibility, and I am coming out publicly as a transgender woman. My name is Vanessa, and my pronouns are she / her. Many of you have known me for a long time as Bert Freudenberg. I’m still me, just more so. I will resubscribe to this list with my new email address, codefrau(a)gmail.com. Cheers! - Vanessa - -- -- Dr. Bert Freudenberg 7275 Franklin Avenue #210 Los Angeles CA 90046 +1 (818) 482-3991

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Re: [squeak-dev] [Vm-dev] Coming out
by Max Leske 31 Mar '20

31 Mar '20

Hi Vanessa! Thank you for sharing! Welcome (again) to the wonderful world of Smalltalk ;) Cheers, Max On 31 Mar 2020, at 11:53, squeak-dev-request(a)lists.squeakfoundation.org wrote: >> Hi all, >> >> >> Today is Transgender Day of Visibility, and I am coming out publicly as a >> transgender woman. >> >> >> My name is Vanessa, and my pronouns are she / her. >> >> >> Many of you have known me for a long time as Bert Freudenberg. I’m still >> me, just more so. >> >> >> I will resubscribe to this list with my new email address, >> codefrau(a)gmail.com. >> >> >> Cheers! >> >> >> - Vanessa - >> -- >> -- >> Dr. Bert Freudenberg >> 7275 Franklin Avenue #210 >> Los Angeles CA 90046 >> +1 (818) 482-3991

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Question about VB-Regex
by Thiede, Christoph 30 Mar '20

30 Mar '20

Hi all, as you may have noticed, I have proposed some new features for Regex-Core in recent past, and I found a lot of fun in working with this clean architecture for which I still see a lot of potential for expansion (for example, I'm currently having basic support for Unicode matches in my pipeline, this is currently blocked by this thread<http://forum.world.st/Unicode-td5113495.html>. For the future, I also would like to consider named groups & depending features). But before I will invest unnecessary time into the Regex-Core package, I have one question: Recently I stumbled upon VB-Regex, which looks very similar to Regex-Core. Has this been a predecessor of Regex-Core, is it a successor or are they two independent forks? I could not find any information about this topic on the web. Is my assumption correct that Regex-Core is the regex "state of the art" within Squeak? Best, Christoph

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The Inbox: EToys-ct.367.mcz
by commits＠source.squeak.org 29 Mar '20

29 Mar '20

A new version of EToys was added to project The Inbox: http://source.squeak.org/inbox/EToys-ct.367.mcz ==================== Summary ==================== Name: EToys-ct.367 Author: ct Time: 15 October 2019, 2:46:24.862129 pm UUID: 1394344f-b1e3-5640-a13a-70c5dffd51f4 Ancestors: EToys-mt.361 Allow for embedding SyntaxMorphs into test tiles. =============== Diff against EToys-mt.361 =============== Item was added: + ----- Method: SyntaxMorph>>parseNodeWith:asStatement: (in category '*Etoys-Squeakland-code generation') ----- + parseNodeWith: encoder asStatement: aBoolean + + ^ self parseNode!

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DoubleWordArray broken in Pharo
by Robert 29 Mar '20

29 Mar '20

Hey Levente, I dug a little deeper into the Pharo issue with Cryptography and it IS a VM issue, I think. Primitive 61 is failing in DoubleWordArray>>#at:put:. Pharo seems totally uninterested in fixing this so I wanted to ask you, is there any way Cryptography can avoid reliance on DoubleWordArray? Kindly, Robert

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The Trunk: Collections-kfr.878.mcz
by commits＠source.squeak.org 29 Mar '20

29 Mar '20

David T. Lewis uploaded a new version of Collections to project The Trunk: http://source.squeak.org/trunk/Collections-kfr.878.mcz ==================== Summary ==================== Name: Collections-kfr.878 Author: kfr Time: 29 February 2020, 12:18:54.1853 pm UUID: ce016281-22ee-4948-b534-944fb3913521 Ancestors: Collections-ul.877 Add 'clear' to Transcript window menu. =============== Diff against Collections-ul.877 =============== Item was added: + ----- Method: TranscriptStream>>addModelItemsToWindowMenu: (in category 'menu') ----- + addModelItemsToWindowMenu: aMenu + + aMenu addLine. + aMenu + add: 'clear' + target: self + action: #clear.!

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math education project (long post)
by Ralph Boland 29 Mar '20

29 Mar '20

I am developing in Squeak a math/science/computer science education project. It is not like any other math education software I have seen in that it breaks down each step of each mathematical operation into steps that are highly visual in nature and appealing and interesting as possible to the target age group which is four to ten year olds. Currently the project is about 35,000 lines of code but will get much larger. I expect version 1) (Counting, Colors, and Clocks) to be ready late fall and version 2) (addition, subtraction, multiplication and division to be ready late summer 2021. These are only estimates and are highly dependent upon how my current financial crisis unfolds. I was planning on creating a web site when version 1) is ready. Issue 1). I know nothing about creating web sites and want to spend as little time as possible doing so since I want to spend all of my time on the software. My users will be children and their parents, tutors, and teachers etc. so downloading the project needs to be super simple. It seems to me that the Squeak web site is a good model for what I need. Is the Squeak web site under some form of open source/documentation license? Is basing my web site on it allowable or even advisable? Would modeling on the Etoys (Squeakland?) web site be better? Same questions on that website apply. If I should build my site from scratch (not Scratch :) ) then can/should I use Seaside. I know little about how to use Seaside and assume that I should not base my website on my home computer so I further assume the answer is that I should use some website hosting company and use whatever software they provide. But since I don't really know what I'm talking about, I could use some basic advice. Learning/Using Seaside would be cool though. Issue 2) I am currently planning to initially release under GPL 3 mostly because of clause 5d) which ensures the license is posted on the running software of anyone who releases a modification of the software. The MIT license only requires that some file contains this license. I am temped to create my own license I call GUI-MIT which includes clause 5d) of GPL 3 and possibly some additional clauses that ensure the software contributors and financial contributors and listed in the running software. But creating my own license is a huge kettle of fish (can of worms?). If you think I am being very anal here, keep in mind that my target audience will never find the file containing the MIT license if the license is not referenced in the running software. I admit simply releasing my project to Squeak under the MIT license is very temping and desirable since it is the easiest way to allow squeakers to contribute or for some group of squeakers for fork my project (I don't want a fork to occur of course but I cannot prevent it). I don't have particular questions here but am very interested in the community's reaction. Issue 3) I really did want to do versions 1) and 2) of my project entirely on my own. After that I would hope that others would want to make contributions to the software. Covid 19 changes that. My goal is to quadruple the rate at which children learn the subjects taught with my software. A laudable goal but what the reality is I admit I don't know. Assuming my goal is attained, it could be very helpful for kids whose schools have closed due to Covid 19. Another reality is that the whole Covid 19 matter will likely be over by the time my software is ready. Still, it is a motivation to get my project completed as soon as possible. The software requires a number of visualizations/animations to be run with EACH STEP of each arithmetic operation taught with the software. These visualizations will take me a long time because I have never done any kind of visualization/animation in Squeak (or anywhere) before so it will take a while to learn how to do them. If there are squeakers interested in writing the code for these visualizations that would advance the project considerably. Alternatively, anyone willing be flooded with questions on how to write these visualizations could be a great help. I am open to be part of a project group for this project if enough people are interested. I would be contributor to such a project (with admittedly an already large contribution) but would have no special privileges or authority. If the group took my project in directions contrary to my desires I would be prepared to fork though. Can't think of what else to say. In all likely hood my project will not be ready until Covid 19 has done its worst and then the project will likely only have a modest impact on early math education. In a couple of years (or perhaps now) this post may seem almost humorous. But if you can provide any advice or help it would be much appreciated. Regards, Ralph Boland rpboland(a)gmail.com

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