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Re: [Pharo-users] [Article] Elegant Pharo Code

by Offray Vladimir Luna CÃ¡rdenas

Sven, Thanks for your articles. I really like the approach and the idea of starting with more problem oriented writting (making a game is more project oriented, which is also fine by the way, just a complementary approach I prefer more). I would add myself to the HernÃ¡n's suggestion of using visualization to explain Smalltalk better, of course this could not be appropriate for on liners, but could be used in future post of your blog. I have thought about this myself[1] and made some small experiments[2] and in some sense Pharo seems a richer environment that even IPython [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… [3] http://mutabit.com/mutabit/default/wiki/ipython-deepness I would write a (Dyna)booklet on "Visual Data Narratives using Pharo Smalltalk" but for that I need to bootstrap my writing process inside Pharo by making tools that support outlining which is my best way to organize my writing[3]. That's where I'm now and in the process I hope to bootstrap myself from mailing list lurker and newbie to a more active member of this community. Your blog post are a good inspiration in this pad. Cheers, Offray On 07/09/2014 02:11 AM, HernÃ¡n Morales Durand wrote: > Hello Sven, > > I will try to give some feedback for you. My major issue is that the objects you > use are pretty basic. There is no reason to put limits with so many contributed > packages. Visualizations have impact and you could use Roassal, GraphViz, > CodeCity, GraphET. SQL is also of interest for many developers. Or Big Data > which is a requirement now. An example with Spec and DynamicLayout would be > cool. For reverse engineering there is Moose and you could show an overview > pyramid maybe? A one-liner with #linesOfCode would be magic :) > > About the article: When writing sample code with random, don't forget to add a > paragraph explaining the random source. It is /dev/urandom? To randomize a > String I write this: > > (UUID new asString reject: #isDigit) copyWithoutAll: '-'. > > To count digits (doesn't work for 1 digit but I like it): > > 42 factorial log ceiling. > > I don't know how this could be useful besides doing many things: "Split a string > on dashes, reverse the order of the elements and join them using slashes". If > you could find a example with some real application would be nice too. > > For Collection messages people is often interested in speed comparisons. Because > audience already knows how to do that in R, Python or other language. > > Hope you could find them useful. > > HernÃ¡n > > > > > 2014-07-07 19:21 GMT-03:00 Sven Van Caekenberghe <sven(a)stfx.eu > <mailto:sven@stfx.eu>>: > > 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 > > > > > >

July 29, 2014

How to upload code from local cache to SmalltalkHub (It was Tree/Outliners of playgrounds, markdown inside comments and some quick medium size dreams for Pharo/Smalltalk)

by Offray Vladimir Luna CÃ¡rdenas

Hi Alexandre, Thanks for your answer. I would see the Moose option as soon as I have proper access (these days this site and Tudor's home page are having problems). Meanwhile I have another questions for the community. I have created a local repository in the cache and I have setup an empty project on Smalltalk Hub. How can I synchronize them both? Thanks, Offray On 07/27/2014 11:13 AM, Alexandre Bergel wrote: > 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 >

July 29, 2014

Copy/past doesn't work sometimes

by Julien Delplanque

Hello, I'm using pharo 3.9-7 and I notice that sometimes the copy/past function from another program to the pharo IDE doesn't work. For example, if I copy something from my internet browser (Chromium) to a workspace in the IDE it doesn't work. I also notice that if I copy something from my text editor (Sublime text) to a workspace it works... ArchLinux version: Linux msi 3.15.5-2-ARCH #1 SMP PREEMPT Fri Jul 11 07:56:02 CEST 2014 x86_64 GNU/Linux My Pharo VM 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 Thank you in advance for your responses! Julien

July 29, 2014

Re: [Pharo-users] strange question

by Werner Kassens

Hi, yes this was, what i was looking for, thank you both werner

July 29, 2014

Re: [Pharo-users] strange question

by Sven Van Caekenberghe

Hi Werner, On 29 Jul 2014, at 14:50, Werner Kassens <wkassens(a)libello.com> wrote: > Hi, > is there a way for a method, to look up the name of the method from where itself was called ? > werner That is what thisContext is for (one of the few special variables, like self and super). Use the Finder to search for all occurrences of thisContext in the Source code. I think your particular question is answered as follows: thisContext sender method HTH, Sven

July 29, 2014

Re: [Pharo-users] strange question

by FranÃ§ois Stephany

You might want to dig into thisContext. "thisContext sender" is probably what you need. On Tue, Jul 29, 2014 at 2:50 PM, Werner Kassens <wkassens(a)libello.com> wrote: > Hi, > is there a way for a method, to look up the name of the method from where > itself was called ? > werner > >

July 29, 2014

strange question

by Werner Kassens

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

July 29, 2014

Re: [Pharo-users] Writing on stdout when redirecting the standard output

by FranÃ§ois Stephany

Yep, we haven't measured yet how slower it gets but we don't have a lot of traffic for this logger. It was annoying to have a delay when observing logs so we flush the stream all the time. We were also afraid of missing information in the case of a pharo crash (hopefully that doesnt happen too much ;)) On Tue, Jul 29, 2014 at 10:06 AM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > On 29 Jul 2014, at 09:49, FranÃ§ois Stephany <tulipe.moutarde(a)gmail.com> > wrote: > > > Uh. We nailed it. > > Good ! > > > We implemented a custom Logger writing to stdout because the default one > doesn't flush the stream immediately after writing to it. > > Beware that flushing after every line is measurably slower. > > > One of our configuration was configuring a logger and another was > reconfiguring it. The stdout stream was probably closed in the process > somewhere. > > > > In conclusion, beware of your loggers ;) > > > > > > > > On Tue, Jul 29, 2014 at 8:32 AM, FranÃ§ois Stephany < > tulipe.moutarde(a)gmail.com> wrote: > > Yes, it works for me on OSX.l But it says "FileWriteError: File stdout > is closed" when doing exactly the same thing on the Arch Linux of one of > our programmer. > > > > We'll investigate and test on another Linux distro... > > > > > > On Mon, Jul 28, 2014 at 10:50 PM, Sven Van Caekenberghe <sven(a)stfx.eu> > wrote: > > I think we need a better bug report, for me (Mac OS X) this works fine: > > > > $ ./pharo Pharo.image eval 'FileStream stdout nextPutAll: 42 factorial > asString; cr. #done' > out.txt > > > > $ cat out.txt > > 1405006117752879898543142606244511569936384000000000 > > #done > > > > So, what exactly is not working ? > > > > On 28 Jul 2014, at 21:30, stepharo <stepharo(a)free.fr> wrote: > > > > > Francois > > > > > > can you open a bug entry because this is not nice. > > > > > > Stef > > > > > > On 28/7/14 16:46, FranÃ§ois Stephany wrote: > > >> > > >> $ 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? > > >> > > > > > > > > > > > > > >

July 29, 2014

Re: [Pharo-users] Writing on stdout when redirecting the standard output

by Sven Van Caekenberghe

On 29 Jul 2014, at 09:49, FranÃ§ois Stephany <tulipe.moutarde(a)gmail.com> wrote: > Uh. We nailed it. Good ! > We implemented a custom Logger writing to stdout because the default one doesn't flush the stream immediately after writing to it. Beware that flushing after every line is measurably slower. > One of our configuration was configuring a logger and another was reconfiguring it. The stdout stream was probably closed in the process somewhere. > > In conclusion, beware of your loggers ;) > > > > On Tue, Jul 29, 2014 at 8:32 AM, FranÃ§ois Stephany <tulipe.moutarde(a)gmail.com> wrote: > Yes, it works for me on OSX.l But it says "FileWriteError: File stdout is closed" when doing exactly the same thing on the Arch Linux of one of our programmer. > > We'll investigate and test on another Linux distro... > > > On Mon, Jul 28, 2014 at 10:50 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > I think we need a better bug report, for me (Mac OS X) this works fine: > > $ ./pharo Pharo.image eval 'FileStream stdout nextPutAll: 42 factorial asString; cr. #done' > out.txt > > $ cat out.txt > 1405006117752879898543142606244511569936384000000000 > #done > > So, what exactly is not working ? > > On 28 Jul 2014, at 21:30, stepharo <stepharo(a)free.fr> wrote: > > > Francois > > > > can you open a bug entry because this is not nice. > > > > Stef > > > > On 28/7/14 16:46, FranÃ§ois Stephany wrote: > >> > >> $ 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? > >> > > > > > >

July 29, 2014

Re: [Pharo-users] Writing on stdout when redirecting the standard output

by FranÃ§ois Stephany

Uh. We nailed it. We implemented a custom Logger writing to stdout because the default one doesn't flush the stream immediately after writing to it. One of our configuration was configuring a logger and another was reconfiguring it. The stdout stream was probably closed in the process somewhere. In conclusion, beware of your loggers ;) On Tue, Jul 29, 2014 at 8:32 AM, FranÃ§ois Stephany < tulipe.moutarde(a)gmail.com> wrote: > Yes, it works for me on OSX.l But it says "FileWriteError: File stdout is > closed" when doing exactly the same thing on the Arch Linux of one of our > programmer. > > We'll investigate and test on another Linux distro... > > > On Mon, Jul 28, 2014 at 10:50 PM, Sven Van Caekenberghe <sven(a)stfx.eu> > wrote: > >> I think we need a better bug report, for me (Mac OS X) this works fine: >> >> $ ./pharo Pharo.image eval 'FileStream stdout nextPutAll: 42 factorial >> asString; cr. #done' > out.txt >> >> $ cat out.txt >> 1405006117752879898543142606244511569936384000000000 >> #done >> >> So, what exactly is not working ? >> >> On 28 Jul 2014, at 21:30, stepharo <stepharo(a)free.fr> wrote: >> >> > Francois >> > >> > can you open a bug entry because this is not nice. >> > >> > Stef >> > >> > On 28/7/14 16:46, FranÃ§ois Stephany wrote: >> >> >> >> $ 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? >> >> >> > >> >> >> >

July 29, 2014