July 2014 - Pharo-users - lists.pharo.org

[Article] Elegant Pharo Code
by Sven Van Caekenberghe July 29, 2014

July 29, 2014

Hi, I have written a new article presenting Pharo using a list of 23 short examples. Elegant Pharo Code Beautiful & Powerful One-liners, Expressions and Snippets https://medium.com/@svenvc/elegant-pharo-code-bb590f0856d0 As mentioned at the end of the article, I welcome feedback, remarks, comments, alternative solutions and other examples. The idea is to create yet another way to lure people into exploring Pharo while explaining by example why we like Pharo. Enjoy! Sven -- Sven Van Caekenberghe Proudly supporting Pharo http://pharo.org http://association.pharo.org http://consortium.pharo.org

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Re: [Pharo-users] [Moose-dev] Tree/Outliners of playgrounds, markdown inside comments and some quick medium size dreams for Pharo/Smalltalk
by Alexandre Bergel July 29, 2014

July 29, 2014

Hi Offray, Something that I usually do, is to simply subclass MooseEntity to create the hierarchy of my domain. I can then enjoy the moose panel to browse my model. Cheers, Alexandre On Jul 27, 2014, at 10:59 AM, Offray Vladimir Luna CÃ¡rdenas <offray(a)riseup.net> wrote: > Hi, > > Answering to myself: I have solved the code that selects the headers of the main tree. The key is to create a new collection containing only node names. Here is the code: > > "*************************" > | mainTree node1 node2 explorer headers | > > mainTree := UbakyeNode > header: 'Arbol raÃz' > body: ''. > > node1 := UbakyeNode > header: 'Nodo 1' > body: 'Texto 1'. > > node2 := UbakyeNode > header: 'Nodo 2' > body: 'Texto 2'. > > mainTree > addNode: node1; > addNode: node2. > > explorer := GLMTabulator new > title: (mainTree header). > explorer column: #tree; > column: #body. > > headers := (mainTree children) > collect: [:node | node header]. > > explorer transmit to: #tree; andShow: [:a | > a tree > display: headers]. > > explorer openOn: mainTree. > > "*************************" > > Now I need to make the children sellectable, and that all the contents of the tree can be updated with a shortcut. > > I will keep you posted. > > Cheers, > > Offray > > On 07/26/2014 09:01 PM, Offray Vladimir Luna CÃ¡rdenas wrote: >> Hi again, >> >> I will be using this thread to update my advances and questions about >> how to build an outliner in Pharo Smalltalk. If there is a better method >> like starting a new thread for particular questions, or a less narrative >> style, please let me know. >> >> The idea is to use the tools provided by Moose to build a quick outliner >> that can be extended to suit my needs on academical writing. This is >> kind of a strange approach in the sense that I'm not following the >> tutorials with a predefined problems (make a game and so) but trying to >> start with a real (in the sense of closer) problem (making an outliner) >> and to see which knowledge I need to solve this necessity. In that sense >> is more like the Freire's alphabetization of adults in Brazil. >> >> So, the things I have done so far was to search for a good model to >> start with. Something already done that can be used as scaffolding for >> my outliner. The Help System seems like a good start for an outliner (in >> fact it is already one), so I have taken the Help-Core system and start >> to use it as a base for my project. >> >> After that I have used the Moose browsers to build a simple interface, >> as seen here: >> >> http://mutabit.com/offray/static/blog/output/galleries/objetos/ubakye-brows… >> >> >> The part I want to deal with is this: >> >> =============== >> >> explorer := GLMTabulator new >> title: (mainTree header). >> explorer column: #tree; >> column: #body. >> >> explorer transmit to: #tree; andShow: [:a | >> a tree >> display: mainTree children ]. >> >> explorer openOn: mainTree. >> >> =============== >> >> So, instead of "display: mainTree children" I need something that takes >> the get names (headers) of the two nodes and the contents in the right >> panel. For that I think that I need to learn some iterators. I have >> already a "header" method for the nodes. Any clue would be appreciated >> and I will keep you posted on my advances. >> >> Cheers, >> >> Offray >> >> >> On 07/21/2014 12:58 PM, Offray Vladimir Luna CÃ¡rdenas wrote: >>> Hi Damien, >>> >>> Thanks for your answer. Comments below. >>> >>> On 07/21/2014 11:09 AM, Damien Cassou wrote: >>>> On Sat, Jul 19, 2014 at 2:47 AM, Offray Vladimir Luna CÃ¡rdenas >>>> <offray(a)riseup.net> wrote: >>>>> The first idea that comes to mind is using STON for storage nodes and >>>>> tree >>>>> information, so I can interchange it with the flatland files world >>>>> and keep >>>>> it readable. Sounds that reasonable? >>>> >>>> >>>> without more information, it is hard to stay. Try with STON and change >>>> if that does not work :-). We have XML and JSON generators as well. >>>> >>> >>> >>> This is a kind of raw preview of I'm talking about: >>> >>> http://www.enlightenment.org/ss/e-53cd4f36f021e9.68569046.jpg >>> >>> Of course in this case, it is just a Help browser with a Playground >>> window over it, but I would like to have something like Playgrounds >>> inside the help browser. I was trying to build a custom browser with >>> Glamour, but seems that Help Browser already has the machinery I'm >>> looking for. >>> >>> So my first question is how to use the Help Browser class as a template >>> for my outliner class? And can I put a Playground where the plain text >>> is located right now? >>> >>>> >>>>> The second thing I would like to do is to add pandoc's markdown inside >>>>> comments, but I don't like the syntax of comments in Smalltalk because >>>>> single quotes are fairly easy to find in light markup language like >>>>> markdown. Is difficult to change it to create something more like >>>>> python >>>>> (with """) or Lua (with -[]- )? >>>> >>>> >>>> There is only one syntax for comments in Pharo. Instead of Markdown, >>>> you might want to have a look at Pillar which is implemented in Pharo >>>> and can generate Markdown (and html, and pdf) : >>>> https://github.com/pillar-markup/pillar-documentation/ >>>> >>>> >>> >>> I have seen Pillar. Seems really interesting, but Pandocs markdown >>> support academic citation in several formats and I have already long >>> docs wrote on that format integrated in my workflow from Zotero and even >>> there is a growing community working on Scholarly Markdown[1][2] so I >>> would like to stick with it as much as I can for my own writing. >>> That being said. I would like also a better integration between >>> Smalltalk outliners and all the academic publication work flow, >>> including working better with pandoc as a external library. >>> >>> [1] https://github.com/scholmd/scholmd/wiki >>> [2] >>> http://blog.martinfenner.org/2013/06/29/metadata-in-scholarly-markdown/ >>> [3] >>> http://programminghistorian.org/lessons/sustainable-authorship-in-plain-tex… >>> >>> >>> >>> Thanks again, this conversation with people in the community is very >>> valuable to me, >>> >>> Offray >>> >>> >> >> >> > > > _______________________________________________ > Moose-dev mailing list > Moose-dev(a)iam.unibe.ch > https://www.iam.unibe.ch/mailman/listinfo/moose-dev -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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strange question
by Werner Kassens July 29, 2014

July 29, 2014

Hi, is there a way for a method, to look up the name of the method from where itself was called ? werner

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Writing on stdout when redirecting the standard output
by FranÃ§ois Stephany July 29, 2014

July 29, 2014

$ pharo Pharo-30852.image > /tmp/test.log Outputting somethind to stdout results in: "FileWriteError: File stdout is closed" * Arch Linux * Pharo 30852. $ pharo --version 3.9-7 #1 Thu May 15 18:29:30 CEST 2014 gcc 4.6.3 [Production ITHB VM] NBCoInterpreter NativeBoost-CogPlugin-GuillermoPolito.19 uuid: acc98e51-2fba-4841-a965-2975997bba66 May 15 2014 NBCogit NativeBoost-CogPlugin-GuillermoPolito.19 uuid: acc98e51-2fba-4841-a965-2975997bba66 May 15 2014 https://github.com/pharo-project/pharo-vm.git Commit: ed4a4f59208968a21d82fd2406f75c2c4de558b2 Date: 2014-05-15 18:23:04 +0200 By: Esteban Lorenzano <estebanlm(a)gmail.com> Jenkins build #14826 Linux pharo-linux 3.2.0-31-generic-pae #50-Ubuntu SMP Fri Sep 7 16:39:45 UTC 2012 i686 i686 i386 GNU/Linux Did I miss something?

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Multiple sorting helper
by Esteban A. Maringolo July 28, 2014

July 28, 2014

Hi, I have a collection of objects and I want to sort its contents by more than one attribute (including nil values), and I thought somebody might have already done this. Something like: sorter := MultipleSortCriteria new add: #lastName; add: [:each | each personalInfo age ] ascending: false. aCollection asSortedCollection: sorter. Is there a package with utility classes for this? Thank you! Esteban A. Maringolo

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Add external package to metacello using versionner
by Norbert Hartl July 28, 2014

July 28, 2014

I try to give Neo-Caching a shot in a project of mine. Neo-Caching does not have a metacello configuration. If I add the package via versionner the package is added but without repository information. That fails on loading? How to do? Bug? Norbert

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[Tip] Image init scripts when working with PharoLauncher
by Torsten Bergmann July 28, 2014

July 28, 2014

PharoLauncher [1] allows you to work with many Pharo images. You can download fresh images, clone existing ones and with its access to the Pharo CI it allows you to easily reproduce errors in specific Pharo image versions. I REALLY like this tool when working with Pharo. There is a customizable hardware key on my laptop that I can just press to open PharoLauncher, manage and launch the images and dive into the world of Pharo. To optimize my Pharo "easy access workflows" further I wanted all the images that I started with PharoLauncher: - to share a common metacello repository cache (where all the mcz are stored independent from image location) for faster loading - to have the possibility to preset the Squeaksource, SS3 and STHub password already - to set my authors name All this is already explained in Marianos blog posts [2] and [3] and the PharoEnterprise book [4]. Nonetheless I would like to share the script that I personally use. Maybe (in an adopted version) it is usefull for other PharoLauncher users as well: ===================================================================== COMMON SETTINGS FOR ALL PHARO IMAGES WHEN STARTED USING PHAROLAUNCHER ===================================================================== Open any Pharo 3.0/4.0 image and execute StartupPreferencesLoader preferencesGeneralFolder fullName in a workspace to find out the common preferences folder on your local machine. You can put a Smalltalk script into this folder, for instance "initAllImages.st" that is evaluated each time an image runs. I've found the following script very useful: ----------------------------------------------------------------- | sharedPackageCacheDirectory | "Never apply to PharoLauncher itself" (SmalltalkImage current imageName includesSubstring: 'Launcher') ifTrue: [ ^self ]. "ask if script should be applied" (UIManager default confirm: 'Apply init script from ', StartupPreferencesLoader preferencesGeneralFolder fullName,' to image') ifFalse: [^self ]. "Use a shared package cache to store Monticello MCS files for all images" sharedPackageCacheDirectory := 'C:\Pharo\commonpackage-cache' asFileReference ensureCreateDirectory; yourself. MCCacheRepository default directory: sharedPackageCacheDirectory. "Set password for Squeaksource" (MCRepositoryGroup default repositories select: [:each | (each isKindOf: MCHttpRepository) and: [((each locationWithTrailingSlash includesSubstring: 'www.squeaksource.com') or: [each locationWithTrailingSlash includesSubstring: 'http://ss3.gemstone.com/ss/'])] ]) do: [:each | each user: 'squeaksourceuser'; password: 'secretsqueaksourcepassword']. "Set password for SmalltalkHub (hub and HTTP repos)" (MCRepositoryGroup default repositories select: [:each | (each isKindOf: MCSmalltalkhubRepository) and: [each locationWithTrailingSlash includesSubstring: 'smalltalkhub.com'] ]) do: [:each | each user: 'PharoUser'; password: 'sthubpassword']. (MCRepositoryGroup default repositories select: [:each | (each isKindOf: MCHttpRepository) and: [each locationWithTrailingSlash includesSubstring: 'smalltalkhub.com'] ]) do: [:each | each user: 'PharoUser'; password: 'sthubpassword']. "Set author name" Author fullName: 'PharoUser'. UIManager default inform: 'Script applied'. ----------------------------------------------------------------- Hope it is usefull for others too. Bye T. [1] http://www.smalltalkhub.com/#!/~Pharo/PharoLauncher [2] http://marianopeck.wordpress.com/2012/05/19/pharo-tips-and-tricks/ [3] http://marianopeck.wordpress.com/2012/05/12/startuploader-running-startup-s… [4] https://ci.inria.fr/pharo-contribution/job/PharoForTheEnterprise/ws/Startup…

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Reference documentation on Trait
by Hilaire July 28, 2014

July 28, 2014

Hi, Do we have such document(s)? Thanks Hilaire -- Dr. Geo - http://drgeo.eu iStoa - http://launchpad.net/istoa

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Tree/Outliners of playgrounds, markdown inside comments and some quick medium size dreams for Pharo/Smalltalk
by Offray Vladimir Luna CÃ¡rdenas July 27, 2014

July 27, 2014

Hi, As I said, I have trying to find my way to keep Pharo relevant in my computing experience. Most of it happens on IPython/web2py for practical/aesthetic reasons, but I think that things with Roassal, Moose and Pharo are falling into place with data Narratives and visualization (on [1] and [2] I have writing some examples/details). [1] http://mutabit.com/offray/static/blog/output/posts/pharo-by-visualization.h… [2] http://mutabit.com/offray/static/blog/output/posts/borrachos-bochinche-futb… I'm a newbie on Smalltalk/Pharo but I would like to start with practical examples from my own needs, so I have started with my idea of making an outliner/tree of playgrounds. For the moment I'm reading/learning with Deep Into Pharo and the chapter on Glamour (which by the way is a really good book) and after I finished with the examples in the doc, I would like to start trying to write my own outliner. The first idea that comes to mind is using STON for storage nodes and tree information, so I can interchange it with the flatland files world and keep it readable. Sounds that reasonable? The second thing I would like to do is to add pandoc's markdown inside comments, but I don't like the syntax of comments in Smalltalk because single quotes are fairly easy to find in light markup language like markdown. Is difficult to change it to create something more like python (with """) or Lua (with -[]- )? The last thing I would like to quick mention that I think that there is a place for a light/live Open Notebook environment for Open/Garage Science and Data Visualization made in Pharo Smalltalk and Trees/Outliners of Playgrounds could be the emergent way to explore that space and I would like to help with that, even being a newbie. I think that is a place I can be comfortable and write/teach about in my blog and local hackerspace, so any idea or guidance about how to proceed would be greatly appreciated. I will keep you posted this time (seriously!) Cheers, Offray

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Commandline
by Norbert Hartl July 25, 2014

July 25, 2014

What are you using to do jobs on the commandline. I'm sick of doing bash and sed,perl,jq,... stuff. What would be the quickest start when using a normal image? And what if I want to give coral a start. Does it work in 3.0? Best place to load stuff from? thanks, Norbert

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