- Pharo-users - lists.pharo.org

Where is "recover lost changes"?

by Andreas Brodbeck

Hi all In the newest Pharo 6.1 I miss a feature from the older Pharos "recover lost changes", which showed me all code changes after the image crashed. I am aware of the new Epicea, which is great, but I can't really get it to show me only those changes since the last image save. How can I get those changes? Cheers, Andreas -- Andreas Brodbeck www.mindclue.ch

Jan. 5, 2018

Re: [Pharo-users] [ANN] Python3Generator and MatplotLibBridge

by Julien

> Le 4 janv. 2018 Ã 23:48, Kjell Godo <squeaklist(a)gmail.com> a Ã©crit : > > did you use a socket to communicate from Pharo to Python? > it does not sound like it it sounds more one way > i am interested in using sockets to communicate between programs > but i haven't done much with it yet > maybe you can include sockets in your generated Python to talk > back to Pharo ? > i got Dolphin Smalltalk to talk to Pharo using a socket > but i kind of forgot about it There is a concept of Â« Interpreter Â» in this framework. Basically, an interpreter is an object to which you provide strings containing Python 3 code and that execute it. There is a FFI interpreter which writes the python code in a file on the file system and uses the int system(char *) function to make python execute the file. It also redirect stderr to a file and read that file after execution in order to have eventual execution errors. There is a Atlas interpreter which uses the Atlas project from Kilon. Atlas makes Python and Pharo talk trough sockets. So this is what you want I guess. The thing is, if I want to send data from Python Pharo, I would use the Atlas interpreter and serialise data to send to Pharo through a socket as JSON for example. But for Matplotlib I do not need to read Pythonâs value so I did not implemented that. Nevertheless, it could be cool to have this ability to get Pythonâs data in Pharo because we could use Numpy or others Python modules for which getting Python's is important. Another interesting thing when communicating through sockets between two different languages is: How do you manage callbacks? For example I would like to be able to make Python execute a Pharo Block at a certain point of the execution or to make Pharo execute a Pythonâs lambda. I do not have answer for that. > did you look at Roassal ? Roassal does a lot of plotting they look very nice > they have mouse interactions and lots of cool stuff > but i don't know how they relate to other plotting programs > i imagine that Roassal tries to do things not done in other programs > but i don't really know i looked at some other plotting thing also > can't remember Sci something > Roassal has a nice declarative style that is nice > i want to use it a lot in future > i use Roassal in the Moose Pharo image because it is pre installed Yes I know Roassal and I think this is a great project when you want to do interactive visualisations and keep them inside the image. But, as far as I know, when it comes to export the plot into a pdf file to have a nice integration in a LaTeX document, you can not do that in Roassal. Of course you can export your plot as svg but then you have to deal with integrating svg inside LaTeXâ¦ Furthermore, as I said before, I already used MatplotLib in Python and really liked its simple interfaceâ¦ Finally, at the beginning it was just an experiment for fun, but then I saw it was quite easy to interface to a Python library from which you donât need to get values back in Pharo so I continued this project and used it when I had to plot stuff. Now I think it is quite usable and I enhance it a little every time I use it and see there is a part of the bridge I need that is not built yet. :-) > i have a rich text tree editing program in Dolphin Smalltalk > that i use like a note taking program like everNote but as a great big tree > using the old Windows tree widget in Dolphin 6 which i like > and i store a lot of my text stuff in there > and i would like to store and edit Racket programs or lisp programs > in there in a tree format > and your project sounds interesting > about how to maybe generate Racket code that will allow > me to use Dolphin and Pharo and other Smalltalks as a front end to > Racket or commonLisp etc > because i don't like the GUIs or IDEs of those things > ( they're so primative )( but i don't know them well )( they just look > brittle )( and C like ) > and i believe there is a command line interface in Pharo so you can > execute external programs like generated scripts I think you could re-use the ideas behind the bridge but not the code. It is really specific to Python 3, I do not see how you could generate LISP using it as is. Julien --- Julien Delplanque Doctorant Ã lâUniversitÃ© de Lille 1 http://juliendelplanque.be/phd.html Equipe Rmod, Inria BÃ¢timent B 40, avenue Halley 59650 Villeneuve d'Ascq NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40

Jan. 5, 2018

Removing contents-changed marker from Rubric on save

by Evan Donahue

Currently, if you add a "composite text" view using gtInspector, the editor lets you use ctrl+s to save changes to the local inspector. However, if you intercept ctrl+s to implement an actual save function, as FileReference does, the text editor no longer knows to remove the contents-changed indicator. You can see this in the current FileReference inspector: f := FileSystem disk / 'tmp' / 'filerefinspectortest.txt'. f writeStreamDo: [ :s | s nextPutAll: 'test data' ]. f inspect. "Change the data and hit ctrl+s. The contents-changed indicator is still there." f inspect. "If you inspect again, you will see that the contents have indeed been saved to disk." How would I change code like the FileReference >> gtInspectorContentsIn: code to make the content-changed indicator work properly? Who is in charge of that indicator and how do I tell them to turn it off? Thanks, Evan

Jan. 5, 2018

Re: [Pharo-users] [ANN] Python3Generator and MatplotLibBridge

by Kjell Godo

did you use a socket to communicate from Pharo to Python? it does not sound like it it sounds more one way i am interested in using sockets to communicate between programs but i haven't done much with it yet maybe you can include sockets in your generated Python to talk back to Pharo ? i got Dolphin Smalltalk to talk to Pharo using a socket but i kind of forgot about it did you look at Roassal ? Roassal does a lot of plotting they look very nice they have mouse interactions and lots of cool stuff but i don't know how they relate to other plotting programs i imagine that Roassal tries to do things not done in other programs but i don't really know i looked at some other plotting thing also can't remember Sci something Roassal has a nice declarative style that is nice i want to use it a lot in future i use Roassal in the Moose Pharo image because it is pre installed i have a rich text tree editing program in Dolphin Smalltalk that i use like a note taking program like everNote but as a great big tree using the old Windows tree widget in Dolphin 6 which i like and i store a lot of my text stuff in there and i would like to store and edit Racket programs or lisp programs in there in a tree format and your project sounds interesting about how to maybe generate Racket code that will allow me to use Dolphin and Pharo and other Smalltalks as a front end to Racket or commonLisp etc because i don't like the GUIs or IDEs of those things ( they're so primative )( but i don't know them well )( they just look brittle )( and C like ) and i believe there is a command line interface in Pharo so you can execute external programs like generated scripts On Tue, Jan 2, 2018 at 12:30 PM, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > On Mon, Jan 1, 2018 at 8:22 PM, Julien <julien.delplanque(a)inria.fr> wrote: > > Hello, > > > > My new year main resolution: stop keeping my side-projects for me. > > I ***LOVE IT*** > Last year I took as decision, release all the books that I had half > finished :) and I ended up creating the booklets > to flush my hardisc. > > Stef > > > > > > > > > > Itâs been like 1 year that I created these two projects, one coming from > a > > refactoring of the other. > > Now it is time to take time to announce them. > > > > I initially come from Python world and during my bachelor & master, I > really > > liked to use matplotlib to plot data using Python. > > > > So I wanted to be able to use this Python module from Pharo. I did it by > > generating Python 3 code from Pharo and making Python 3 executing it. So, > > first I implemented everything in MatplotLibBridge package and then I > split > > it in two package in order to be able to eventually create bridges to > other > > Python 3 modules. > > > > So, Python3Generator [1] is made for generating programatically Python 3 > > code from Pharo. Basically, it allows you to easily build a Python 3 AST, > > to serialize it in Python 3 source code and eventually to execute it. For > > now you can transfer data from Pharo to Python (e.g. providing arguments > to > > functions that are Pharoâs objects) but you can not retrieve data stored > in > > Python variable from Pharo (but it should be possible, just I donât need > to > > do that for my bridge to matplotlib). Some examples are provided on the > > githubâs README. > > > > MatplotLibBridge [2] is made for creating plots using matplotlib [3] from > > Pharo. There is a bunch of examples of what you can do on the README. The > > two features from matplotlib I like the most are: 1. You can generate > your > > plot in a lot of file formats (png, pdf, svg, ps, etcâ¦) 2. It allows to > > embed LaTeX mathematical formulae everywhere in the plot (which can be > > really cool). All the possible plots in matplotlib are not available in > > Pharoâs side because I build parts of the bridge when I need them but it > is > > not hard to do. I someone is interested in a plot type not available yet, > > please tell me. > > > > So, it is announced, if someone want to do something with those, please > do > > it! > > > > Happy new year. > > > > Regards, > > > > Julien > > > > [1]: https://github.com/juliendelplanque/Python3Generator > > [2]: https://github.com/juliendelplanque/MatplotLibBridge > > [3]: https://matplotlib.org > > > > --- > > Julien Delplanque > > Doctorant Ã lâUniversitÃ© de Lille 1 > > http://juliendelplanque.be/phd.html > > Equipe Rmod, Inria > > BÃ¢timent B 40, avenue Halley 59650 Villeneuve d'Ascq > > NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40 > > > >

Jan. 4, 2018

Re: [Pharo-users] Examples of Garage for DB2

by Andrei Stebakov

Thank you, Pierce I got similar ffi exceptions when I call Gofer new smalltalkhubUser: 'PharoExtras' project: 'ODBC'; package: 'ConfigurationOfODBC'; load. (Smalltalk at: #ConfigurationOfODBC) load. On Jan 4, 2018 11:41 AM, "Pierce Ng" <pierce(a)samadhiweb.com> wrote: > On Wed, Jan 03, 2018 at 11:42:22AM -0500, Andrei Stebakov wrote: > > I tried before to install odbc. > > Gofer new > > squeaksource: 'ODBC'; > > Not Squeaksource. Load the version from Smalltalkhub: > > Gofer new > smalltalkhubUser: 'PharoExtras' project: 'ODBC'; > ... > > Hopefully this version works with or without Esteban's suggestion. > > > I still don't see how postgres can help but I'll give it another try. > > I suggested PostgreSQL FDW because I know PostgreSQL. If you are not > familiar > with PostgreSQL, then setting it up, setting up its FDW, and finally > setting up > programmatic access to PostgreSQL to get at the FDW data is probably more > work > than it is worth. > > Pierce > > >

Jan. 4, 2018

Re: [Pharo-users] Examples of Garage for DB2

by Pierce Ng

On Wed, Jan 03, 2018 at 11:42:22AM -0500, Andrei Stebakov wrote: > I tried before to install odbc. > Gofer new > squeaksource: 'ODBC'; Not Squeaksource. Load the version from Smalltalkhub: Gofer new smalltalkhubUser: 'PharoExtras' project: 'ODBC'; ... Hopefully this version works with or without Esteban's suggestion. > I still don't see how postgres can help but I'll give it another try. I suggested PostgreSQL FDW because I know PostgreSQL. If you are not familiar with PostgreSQL, then setting it up, setting up its FDW, and finally setting up programmatic access to PostgreSQL to get at the FDW data is probably more work than it is worth. Pierce

Jan. 4, 2018

Re: [Pharo-users] Solver for the Stable Marriage problem in Pharo

by Julien

Oh, maybe it would have helped thenâ¦ :-) Julien --- Julien Delplanque Doctorant Ã lâUniversitÃ© de Lille 1 http://juliendelplanque.be/phd.html Equipe Rmod, Inria BÃ¢timent B 40, avenue Halley 59650 Villeneuve d'Ascq NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40 > Le 4 janv. 2018 Ã 15:12, Guillermo Polito <guillermopolito(a)gmail.com> a Ã©crit : > > It depends. I wanted to customize the process a bit, and avoid that some people make gifts to some specific people. > > On Thu, Jan 4, 2018 at 2:26 PM, Julien <julien.delplanque(a)inria.fr <mailto:julien.delplanque@inria.fr>> wrote: > Not sure you can use it for that. > > I mean, you wanted random pairs of people no? > > So no need to rank people according to some preferences? > > Julien > > --- > Julien Delplanque > Doctorant Ã lâUniversitÃ© de Lille 1 > http://juliendelplanque.be/phd.html <http://juliendelplanque.be/phd.html> > Equipe Rmod, Inria > BÃ¢timent B 40, avenue Halley 59650 <https://maps.google.com/?q=40,+avenue+Halley+59650%C2%A0Villeneuve%C2%A0d'Ascq&entry=gmail&source=g> Villeneuve <https://maps.google.com/?q=40,+avenue+Halley+59650%C2%A0Villeneuve%C2%A0d'Ascq&entry=gmail&source=g> d'Ascq <https://maps.google.com/?q=40,+avenue+Halley+59650%C2%A0Villeneuve%C2%A0d'Ascq&entry=gmail&source=g> > NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40 <tel:+33%203%2059%2035%2086%2040> >> Le 4 janv. 2018 Ã 10:08, Guillermo Polito <guillermopolito(a)gmail.com <mailto:guillermopolito@gmail.com>> a Ã©crit : >> >> Nice! But late :P I was looking for something like this to organize secret santa a couple of weeks ago. I'll star it though :) >> >> Tx! >> >> On Wed, Jan 3, 2018 at 12:23 AM, Sean P. DeNigris <sean(a)clipperadams.com <mailto:sean@clipperadams.com>> wrote: >> Julien wrote >> > Continuing to announce what I have. >> >> Hooray!! >> >> >> >> ----- >> Cheers, >> Sean >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html <http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html> >> >> >> >> >> -- >> >> Guille Polito >> Research Engineer >> >> Centre de Recherche en Informatique, Signal et Automatique de Lille >> CRIStAL - UMR 9189 >> French National Center for Scientific Research - http://www.cnrs.fr <http://www.cnrs.fr/> >> >> Web: http://guillep.github.io <http://guillep.github.io/> >> Phone: +33 06 52 70 66 13 <tel:+33%206%2052%2070%2066%2013> > > > > -- > > Guille Polito > Research Engineer > > Centre de Recherche en Informatique, Signal et Automatique de Lille > CRIStAL - UMR 9189 > French National Center for Scientific Research - http://www.cnrs.fr <http://www.cnrs.fr/> > > Web: http://guillep.github.io <http://guillep.github.io/> > Phone: +33 06 52 70 66 13

Jan. 4, 2018

Re: [Pharo-users] Solver for the Stable Marriage problem in Pharo

by Guillermo Polito

It depends. I wanted to customize the process a bit, and avoid that some people make gifts to some specific people. On Thu, Jan 4, 2018 at 2:26 PM, Julien <julien.delplanque(a)inria.fr> wrote: > Not sure you can use it for that. > > I mean, you wanted random pairs of people no? > > So no need to rank people according to some preferences? > > Julien > > --- > Julien Delplanque > Doctorant Ã lâUniversitÃ© de Lille 1 > http://juliendelplanque.be/phd.html > Equipe Rmod, Inria > BÃ¢timent B 40, avenue Halley 59650 > <https://maps.google.com/?q=40,+avenue+Halley+59650%C2%A0Villeneuve%C2%A0d'Ascq&entry=gmail&source=g> > Villeneuve > <https://maps.google.com/?q=40,+avenue+Halley+59650%C2%A0Villeneuve%C2%A0d'Ascq&entry=gmail&source=g> > d'Ascq > <https://maps.google.com/?q=40,+avenue+Halley+59650%C2%A0Villeneuve%C2%A0d'Ascq&entry=gmail&source=g> > NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40 <+33%203%2059%2035%2086%2040> > > Le 4 janv. 2018 Ã 10:08, Guillermo Polito <guillermopolito(a)gmail.com> a > Ã©crit : > > Nice! But late :P I was looking for something like this to organize secret > santa a couple of weeks ago. I'll star it though :) > > Tx! > > On Wed, Jan 3, 2018 at 12:23 AM, Sean P. DeNigris <sean(a)clipperadams.com> > wrote: > >> Julien wrote >> > Continuing to announce what I have. >> >> Hooray!! >> >> >> >> ----- >> Cheers, >> Sean >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >> >> > > > -- > > Guille Polito > Research Engineer > > > Centre de Recherche en Informatique, Signal et Automatique de Lille > CRIStAL - UMR 9189 > French National Center for Scientific Research - *http://www.cnrs.fr > <http://www.cnrs.fr/>* > > *Web:* *http://guillep.github.io* <http://guillep.github.io/> > *Phone: *+33 06 52 70 66 13 <+33%206%2052%2070%2066%2013> > > > -- Guille Polito Research Engineer Centre de Recherche en Informatique, Signal et Automatique de Lille CRIStAL - UMR 9189 French National Center for Scientific Research - *http://www.cnrs.fr <http://www.cnrs.fr>* *Web:* *http://guillep.github.io* <http://guillep.github.io> *Phone: *+33 06 52 70 66 13

Jan. 4, 2018

Re: [Pharo-users] Formatted print for Duration

by Julien

I chosen something like the second solution to avoid adding a dependency to my project (it is a bit overkill for what I wanted to achieve). But shouldnât this formatted-print feature be added in Duration? Julien --- Julien Delplanque Doctorant Ã lâUniversitÃ© de Lille 1 http://juliendelplanque.be/phd.html Equipe Rmod, Inria BÃ¢timent B 40, avenue Halley 59650 Villeneuve d'Ascq NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40 > Le 3 janv. 2018 Ã 23:02, Andreas Brodbeck <dassi(a)mindclue.ch> a Ã©crit : > > Am 03.01.18 um 14:07 schrieb Julien: >> Hello, >> >> I do not see how to do a formatted print from a duration. >> >> I would like to be able to do something like: >> >> String streamContents: [ :s | 90 minutes formatted: âhh:mmâ printOn: s ] >> >> The Duration>>#printOn: method prints the ANSI 5.8.2.16 format: [-]D:HH:MM:SS[.S] >> >> The Duration>>#printHumanReadableOn: is not printing in the format I want. >> >> Am I missing something or such feature does not exist actually? > > Hi Julien > > I did not find a ready made method for that, either. Probably because > there is no standard way to print a *Duration* as minutes and seconds, > because it is not obvious how to print it (Compared to instances of the > *Time* class). > > My solution would be to implement your own printing method using the > GRPrinter from the Grease package (Installable through Catalog Browser > in Pharo 6): > > ***************************** > > | hoursPrinter minutesPrinter printer | > > "Note: you can not use 'duration minutes', since this will give you only > the partial minutes inside a day" > hoursPrinter := GRMappedPrinter > block: [ :duration | duration asMinutes // 60 ] > next: (GRNumberPrinter new). > > minutesPrinter := GRMappedPrinter > block: [ :duration | duration minutes ] > next: (GRPrinter numberWithAtLeastDigits: 2). > > printer := hoursPrinter, $:, minutesPrinter. > > ^printer print: (9876 minutes) "Will result in '164:36'" > > ***************************** > > > > 2. solution: Or just dead simple: > > ***************************** > > | duration | > duration := (9876 minutes). > > ^(duration asMinutes // 60) asString, ':', > duration minutes asTwoCharacterString > > ***************************** > > > Cheers, Andreas > > -- > Andreas Brodbeck > www.mindclue.ch <http://www.mindclue.ch/>

Jan. 4, 2018

Re: [Pharo-users] Solver for the Stable Marriage problem in Pharo

by Julien

Not sure you can use it for that. I mean, you wanted random pairs of people no? So no need to rank people according to some preferences? Julien --- Julien Delplanque Doctorant Ã lâUniversitÃ© de Lille 1 http://juliendelplanque.be/phd.html Equipe Rmod, Inria BÃ¢timent B 40, avenue Halley 59650 Villeneuve d'Ascq NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40 > Le 4 janv. 2018 Ã 10:08, Guillermo Polito <guillermopolito(a)gmail.com> a Ã©crit : > > Nice! But late :P I was looking for something like this to organize secret santa a couple of weeks ago. I'll star it though :) > > Tx! > > On Wed, Jan 3, 2018 at 12:23 AM, Sean P. DeNigris <sean(a)clipperadams.com <mailto:sean@clipperadams.com>> wrote: > Julien wrote > > Continuing to announce what I have. > > Hooray!! > > > > ----- > Cheers, > Sean > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html <http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html> > > > > > -- > > Guille Polito > Research Engineer > > Centre de Recherche en Informatique, Signal et Automatique de Lille > CRIStAL - UMR 9189 > French National Center for Scientific Research - http://www.cnrs.fr <http://www.cnrs.fr/> > > Web: http://guillep.github.io <http://guillep.github.io/> > Phone: +33 06 52 70 66 13

Jan. 4, 2018