August 2017 - Pharo-users - lists.pharo.org

You can help me
by horrido Sept. 4, 2017

Sept. 4, 2017

I'm writing an article about Pharo. I would like to list the Top 10 "really big" things that have been developed in the past several years, /or are being developed right now/. Please word it in a way that laypeople (like CTOs and non-Smalltalkers) can understand. Thanks. (I know "really big" is rather subjective. I leave it to your discretion.) -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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How to create a minimal image ?
by Dimitris Chloupis Sept. 2, 2017

Sept. 2, 2017

I remember that the website used to link to a minimal image download but it does not seem there is one anymore Is still minimal image maintained ? Are there ways to make a image minimal ? Are there any tools for this job ? Is there any kind of documentation about this ?

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Code mystery
by PBKResearch Sept. 1, 2017

Sept. 1, 2017

Hello All Following the discussion on dark mode, I was browsing the code on themes (in Moose 6.1 = Pharo 6.0, Latest update: #60486). In Class ThemeIcons, I found this method: downloadTo: dir | zipArchive | zipArchive := self class destinationPath / (self name, '.zip'). zipArchive exists ifFalse: [ ZnClient new url: self url; downloadTo: zipArchive ]. ^ zipArchive The mystery is that the argument dir is not referred to anywhere in the code. It probably works, because the only invocation of the method is from ThemeIcons>>downloadFromUrl, which sets the argument from self class destinationPath, and the code above recreates this as the path to zipArchive. I thought I understood Smalltalk coding fairly well, but this really puzzles me. Why would anyone code like this? Shouldn't it be picked up by a code critic? Or am I going crazy? Any help gratefully received Peter Kenny

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[Pillar] How do I include a picture which I get from aMorph imageFrom?
by H. Hirzel Aug. 31, 2017

Aug. 31, 2017

Hello Is it possible to include a in-image picture in Pillar which I get by evaluating myMorph imageForm? Or do I need to write the instance of Form I get by evaluating the expression above first as a PNG file to disk and get it from there. PNGReadWriter putForm: myMorph imageForm onFileNamed: aString If yes what is the default directory where does Pillar expects pictures -- The Pillar cheat sheet [1] and the Pillar chapter in the Pharo enterprise book no 3 [2] have an example +Caption>file://image.png|width=50|label=label+ Regards Hannes [1] http://pillarhub.pharocloud.com/hub/pillarhub/pillarcheatsheet [2] Section 3.8 of https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf…

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pillar image in external link (or html a tag)
by Peter UhnÃ¡k Aug. 31, 2017

Aug. 31, 2017

Hi, how can I embed an image into an anchor in Pillar? I've tried *+Pharo>https://pharo.org/web/files/pharo.png+>http://pharo.org/* I've also tried to create document by hand and export it, but every single exporter failed on it. doc := PRDocument new add: (PRExternalLink new reference: 'http://pharo.org/'; add: (PRFigure new reference: 'https://pharo.org/web/files/pharo.png'; add: (PRText content: 'Pharo'); yourself ); yourself ); yourself Thanks, Peter

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Where do I find a Pillar syntax summary?
by H. Hirzel Aug. 31, 2017

Aug. 31, 2017

Hello There is a tutorial for the Pillar document writing system [1]. The Pharo 6 catalog entry shows that the Pillar syntax goes back to the Pier CMS syntax of Lukas Renggli [2]. There is a syntax summary for the Pier CMS http://www.piercms.com/doc/syntax [3] I assume that most this still applies for Pillar? But I can imagine that there have here been updates / changes / extensions. I am looking for a Pillar syntax summary ("cheat sheet"). Is this available somewhere? Kind regards Hannes [1] https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… [2] Pharo 6.1 catalog entry for Pillar Pillar is a wiki-like syntax, its document model, a parser for it, and a set of exporters (e.g., HTML, LaTeX, Markdown...). Pillar is primarily used as the wiki syntax behind the *Pier CMS>http://piercms.com*. Pillar is also being used to write books: e.g., *the Enterprise Pharo book>http://books.pharo.org/*. The original creator of Pillar (formerly known as ''the syntax behind the Pier CMS'') is Lukas Renggli. Nevertheless, *Damien Cassou>damien.cassou(a)inria.fr* is now the maintainer. The website is at *http://www.smalltalkhub.com/#!/~Pier/Pillar*. Issues should be reported to *https://github.com/pillar-markup/pillar/issues* [3] http://wiki.squeak.org/squeak/3700 has some information about Pier. It refers to a Smallwiki mailing list which is active. https://www.list.inf.unibe.ch/pipermail/smallwiki/ e.g. https://www.list.inf.unibe.ch/pipermail/smallwiki/2016-November/008051.html with an announcment 'Pier3 with latest Pillar'

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CodeImporter. 256 literals limit
by Andreas Sunardi Aug. 31, 2017

Aug. 31, 2017

I have written a tool (Pharo5) where user gives an input file to it, where the content is a smalltalk code, a DSL. I used a subclass of CodeImporter class to evaluate this input file. Recently my user used an input file where it hit the 256 literal limit (total of unique string, number, method name, etc), down in OpalEncoderForV3PlusClosures >> genPushLiteral:. The number seems to be hard coded and related to byte code generator, not something I can simply increase. I wasn't aware of this limitation. Before I overhaul my tool, I thought I should ask. Is there another alternative to evaluate a smalltalk file/script? The file is small, 27k, but the number of unique literals in it is > 256. Is it possible at all, seeing that the limit is related to byte code generator. Thank you in advance -- Andreas Sunardi

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[Pillar] Pillar source code of ESUG 2015 presentation? Presentations done with Pillar?
by H. Hirzel Aug. 31, 2017

Aug. 31, 2017

Hello On the slide 14 of the Pillar presentation at ESUG 2015 [1] it says that the presentation was made with Pillar. Is the Pillar source code available somewhere? Other source code examples of presentations made with Pillar are fine as well. Thank you Hannes Hirzel [1] http://esug.org/data/ESUG2015/4%20thursday/1600-1630%20Pilar/Pillar.pdf

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new chapter on double dispatch for new book :)
by Stephane Ducasse Aug. 31, 2017

Aug. 31, 2017

feedback is welcome Good reading

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sharing context/variables between multiple playgrounds
by Peter Uhnak Aug. 31, 2017

Aug. 31, 2017

Hi, is there a way to share context/variables between multiple playgrounds? E.g. in Playground window 1 I declare ``` factor := 70. ``` and in Playground window 2 I do (without declaring `factor`) ``` 5 * factor. "-> 350" ``` Thanks, Peter

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