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

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by K K Subbu

On Monday 24 April 2017 08:00 PM, Juraj Kubelka wrote: > > Please, can you send me a screenshot? Or submit the screenshot > here https://github.com/JurajKubelka/PharoSprint/issues/new Done. I think the error appears because when a login fails, the message causes a horiz scroll bar to be added to the panel pushing the fields beyond the top edge. I stumbled on this error because I tried using my fogbugz id whereas the login field needs the registered email id for login. Regards .. Subbu

April 24, 2017

Sending byte array in a JSON format

by Juraj Kubelka

Hi, I was playing with GitHub Gist API and I have queried the following Gist: https://gist.github.com/mbostock/5503544 <https://gist.github.com/mbostock/5503544> I was interested how the PNG image is returned: https://gist.github.com/mbostock/5503544#file-thumbnail-png <https://gist.github.com/mbostock/5503544#file-thumbnail-png> I can obtain the whole Gist executing: STONJSON fromString: (ZnClient new url: 'https://api.github.com/gists/5503544'; accept: 'application/vnd.github.v3+json'; get). I can get PNG contents executing: pngData := (ZnEasy get: ((((STONJSON fromString: (ZnClient new url: 'https://api.github.com/gists/5503544'; accept: 'application/vnd.github.v3+json'; get)) at: 'files') at: 'thumbnail.png') at: 'raw_url')) contents. PNGReadWriter formFromStream: rawPng readStream. But the PNG image is part of the Gist query and can be retrieved by: pngContent := ((((STONJSON fromString: (ZnClient new url: 'https://api.github.com/gists/5503544'; accept: 'application/vnd.github.v3+json'; get)) at: 'files') at: 'thumbnail.png') at: 'content'). "As pngContent is a WideString, I cannot use:" PNGReadWriter formFromStream: pngContent readStream. How can I read the PNG image from the pngContent? Any idea? And the reverse question: How can I send the PNG bytes using JSON format? Thanks! Juraj

April 24, 2017

Re: [Pharo-users] Hot to retrieve values from Nested Dictionaries

by Peter Uhnak

Maybe we could introduce `@` message, so one can chain them and then even execute keyword without parenthesis Dictionary>>@ aKey ^ at: aKey dict @ 'key1' @ 'key2' @ 'key3' dict @ 'key1' @ 'key2' @ 'key3' select: [ :each | ... ] I'm always adding this when hacking around, maybe we could have it in Pharo. Peter On Mon, Apr 24, 2017 at 02:48:48PM -0300, Juraj Kubelka wrote: > > > On Apr 24, 2017, at 14:42, Markus BÃ¶hm <markus.boehm(a)gmail.com> wrote: > > > > May I ask: > > What's the idiomatic way to retrieve values from nested dictionaries? > > > > (((dict1 at: 'key1') at: 'key2') at: 'key3') > > > > Are all the brackets really necessary? > > I think so, without the parenthesis, it is interpreted as one message at:at:at: > > If you use it a lot, you may want to convert the dictionary structure into domain objects. > > Juraj > > > > > BR Mike > >

April 24, 2017

Re: [Pharo-users] Hot to retrieve values from Nested Dictionaries

by Esteban A. Maringolo

For these use cases it would be nice to have some sort of syntax sugar as with the cascade operator, but with a chaining operator instead. The chaining operator would send the message to the result of the previous statement instead of the original receiver as in the semicolon cascade operator (;). E.g. dict1 at: 'key1' : at: 'key2' : at: 'key3' . I selected the colon character in the lack of non-message related characters. It's only a daydream and nothing that I found very often needing, except for cases like the mentioned in this thread, extracting a deeply nested value from a JSON object tree/dictionary. ps: use the extra parenthesis, they're not that many. :) Regards! Esteban A. Maringolo 2017-04-24 14:48 GMT-03:00 Juraj Kubelka <juraj.kubelka(a)icloud.com>: > >> On Apr 24, 2017, at 14:42, Markus BÃ¶hm <markus.boehm(a)gmail.com> wrote: >> >> May I ask: >> What's the idiomatic way to retrieve values from nested dictionaries? >> >> (((dict1 at: 'key1') at: 'key2') at: 'key3') >> >> Are all the brackets really necessary? > > I think so, without the parenthesis, it is interpreted as one message at:at:at: > > If you use it a lot, you may want to convert the dictionary structure into domain objects. > > Juraj > >> >> BR Mike > >

April 24, 2017

Re: [Pharo-users] Hot to retrieve values from Nested Dictionaries

by Markus BÃ¶hm

Tx for advice. P.S.: I got nested dictionaries after JSON API call at wunderground weather API. To see all the response in Pharo inspector "live" is really great :-) BR Mike On Mon, Apr 24, 2017 at 7:51 PM, Cyril Ferlicot D. <cyril.ferlicot(a)gmail.com > wrote: > Le 24/04/2017 Ã 19:42, Markus BÃ¶hm a Ã©crit : > > May I ask: > > What's the idiomatic way to retrieve values from nested dictionaries? > > > > (((dict1 at: 'key1') at: 'key2') at: 'key3') > > > > Are all the brackets really necessary? > > > > BR Mike > > Hi, > > To know if brackets are necessary you can use the "Format" option in > your method. > > Right click -> format > > or cmd/alt/ctrl + shift + f > > In this case you can just write: > > ((dict1 at: 'key1') at: 'key2') at: 'key3'. > > > > -- > Cyril Ferlicot > https://ferlicot.fr > > http://www.synectique.eu > 2 rue Jacques PrÃ©vert 01, > 59650 Villeneuve d'ascq France > >

April 24, 2017

Re: [Pharo-users] Hot to retrieve values from Nested Dictionaries

by Cyril Ferlicot D.

Le 24/04/2017 Ã 19:42, Markus BÃ¶hm a Ã©crit : > May I ask: > What's the idiomatic way to retrieve values from nested dictionaries? > > (((dict1 at: 'key1') at: 'key2') at: 'key3') > > Are all the brackets really necessary? > > BR Mike Hi, To know if brackets are necessary you can use the "Format" option in your method. Right click -> format or cmd/alt/ctrl + shift + f In this case you can just write: ((dict1 at: 'key1') at: 'key2') at: 'key3'. -- Cyril Ferlicot https://ferlicot.fr http://www.synectique.eu 2 rue Jacques PrÃ©vert 01, 59650 Villeneuve d'ascq France

April 24, 2017

Re: [Pharo-users] Hot to retrieve values from Nested Dictionaries

by Juraj Kubelka

> On Apr 24, 2017, at 14:42, Markus BÃ¶hm <markus.boehm(a)gmail.com> wrote: > > May I ask: > What's the idiomatic way to retrieve values from nested dictionaries? > > (((dict1 at: 'key1') at: 'key2') at: 'key3') > > Are all the brackets really necessary? I think so, without the parenthesis, it is interpreted as one message at:at:at: If you use it a lot, you may want to convert the dictionary structure into domain objects. Juraj > > BR Mike

April 24, 2017

Hot to retrieve values from Nested Dictionaries

by Markus BÃ¶hm

May I ask: What's the idiomatic way to retrieve values from nested dictionaries? (((dict1 at: 'key1') at: 'key2') at: 'key3') Are all the brackets really necessary? BR Mike

April 24, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Juraj Kubelka

> On Apr 24, 2017, at 05:29, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > Hi, > >> On 24 Apr 2017, at 09:04, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: >> >> Hi! >> >> One very important aspect of Jurajâs work, is that _participants at a sprint should use the sprint tool_. It comes with the latest Pharo image (i.e. what has to be used in a sprint). > > no it doesnât :) > (and it wont, at least this version) > > but yes, everybody should use it ;) Currently, the build system is not integrated with the Pharoâs CI. I do not know if it is going to be useful, but I plan to integrate it in order to find it out :-) Juraj > > >> >> So, letâs use it on Friday! > > +1 > > Esteban > >> >> Cheers, >> Alexandre >> >> >>> On Apr 24, 2017, at 8:05 AM, K K Subbu <kksubbu.ml(a)gmail.com> wrote: >>> >>> On Sunday 23 April 2017 08:43 PM, Juraj Kubelka wrote: >>> >>>> As the Pharo Sprint is organized in several places around the world, we >>>> miss the connection with other guys. For that reason we decided to move >>>> the physical whiteboard to the internet and developed Pharo Sprint App. >>> >>> Excellent idea and a very useful tool! It took me just a few minutes to download it and post my first fix through it. >>> >>> What would be workflow for using this app? Is this only for Pharo Sprint participants or can others also use it? >>> >>> I faced a minor problem in the UI. The top half of login/password text input fields got clipped by title bar, when I opened it up first. Later the Update/Logout buttons also have their top border clipped off. >>> >>> Regards .. Subbu >>> >> >> -- >> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >> Alexandre Bergel http://www.bergel.eu >> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >> >> >> >> > >

April 24, 2017

Re: [Pharo-users] Gathering statistics on messages sent to an object

by Alistair Grant

Hi Denis, On Mon, Apr 24, 2017 at 03:48:46PM +0200, Denis Kudriashov wrote: > Hi Alistair. > > Do you know that you are able to count any message send? (not only external). > For this you need prevent meta recursion. Now inside message processing you do: > > aMessage sendTo: anObject > > which produces another intercepting message #perform:withArguments which > repeats original message send. > Fortunately Ghost handles such kind of meta recursion and there is no infinite > loop here: any self-sends are ignored in such cases. > > If you want intercept any message try following code: > > ExternalSendTrace>>send: aMessage to: anObject > | method | > announcer announce: (ExternalSendAnnouncement message: aMessage trace: > self). > method := anObject class lookupSelector: aMessage selector. > ^GHMetaMessages executeWith: anObject andArguments: aMessage arguments > method: method > > > In that case we lookup and execute method by using mirror primitive which not > sends any message to object. > > For example: > > > rect := 10@30 corner: 100@300. > trace := ExternalSendStats logStatsFor: rect. > rect area. > trace stats. > "a Dictionary(#area->1 #height->1 #width->1 )" > > > > Best regards, > Denis Thanks for the exmplanation and code. In this particular case I wanted to specifically exclude internal message sends, as the goal was to find out how other objects called DiskStore, but this will obviously be useful in different situations. Thanks again! Alistair > 2017-04-24 14:43 GMT+02:00 Alistair Grant <akgrant0710(a)gmail.com>: > > If you subscribe to pharo-dev you will have seen that I've been looking > at the primitives used in DiskStore. > > As part of that investigation I wanted to get an idea of which messages > are typically sent to DiskStore and how often. > > Denis Kudriashov provided a neat package that implements a "halt on > next object call". I've been wanting to play with the package for a > while and decided this was a good opportunity. > > I've extended that package to keep count of how many times messages are > sent to a target object, e.g.: > > > > | point trace | > > point := 2@3. > trace := ExternalSendStats logStatsFor: point. > point > x; > y; > angle; > x. > trace stats. > "a Dictionary( > #angle->1 > #x->2 > #y->1 )" > > > > The package is probably too simplistic, and there's bound to be other > ways to do this, but it met my immediate needs and gave me a chance to > try out the Ghost package. I'll extend it if and when I need to. > > Many thanks to Denis for making the Ghost package available, and > hopefully this is useful for someone, or at least triggers some new > ideas. > > Denis' original article is at: http://dionisiydk.blogspot.cz/2016/04/ > halt-next-object-call.html > > The extensions can be installed with: > > Metacello new > baseline: 'AkgGhost'; > repository: 'github://akgrant43/akg-ghost:master/mc'; > load

April 24, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Juraj Kubelka

Hi Subbu, > On Apr 24, 2017, at 03:05, K K Subbu <kksubbu.ml(a)gmail.com> wrote: > > On Sunday 23 April 2017 08:43 PM, Juraj Kubelka wrote: > >> As the Pharo Sprint is organized in several places around the world, we >> miss the connection with other guys. For that reason we decided to move >> the physical whiteboard to the internet and developed Pharo Sprint App. > > Excellent idea and a very useful tool! It took me just a few minutes to download it and post my first fix through it. Thatâs great :-) The idea is having something simple to use. > > What would be workflow for using this app? Is this only for Pharo Sprint participants or can others also use it? The initial idea have raised from the Pharo Sprint events. But you can use the way you want. In other words, by using it, we will find out new workflows :-) It should be clear that âPharo Sprint participantsâ are not meant to be physically available in Lille, France or Santiago, Chile. > > I faced a minor problem in the UI. The top half of login/password text input fields got clipped by title bar, when I opened it up first. Later the Update/Logout buttons also have their top border clipped off. Please, can you send me a screenshot? Or submit the screenshot here https://github.com/JurajKubelka/PharoSprint/issues/new <https://github.com/JurajKubelka/PharoSprint/issues/new> Thanks! Juraj > > Regards .. Subbu >

April 24, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Juraj Kubelka

> On Apr 23, 2017, at 16:41, Offray Vladimir Luna CÃ¡rdenas <offray.luna(a)mutabit.com> wrote: > > Congrats Juraj. Pretty useful for the community. This idea of inside image tools talking with community channels is starting to take form. > I would like to discuss with others within the Pharo image. It has a potential to share more then text, scripts, and screenshot. Cheers, Juraj > Cheers, > > Offray > > On 23/04/17 11:51, Juraj Kubelka wrote: >> Yes, it is connected to FogBugz and it leaves message in FogBugz and also in Discord: >> >> <image1.PNG> >> >> <image2.PNG> >> >> >> Juraj >> >> -- >> Juraj Kubelka >> >> El 23-04-2017, a las 13:32, Stephane Ducasse <stepharo.self(a)gmail.com <mailto:stepharo.self@gmail.com>> escribiÃ³: >> >>> do you mark the cases that are taken by someone? >>> >>> >>> >>> On Sun, Apr 23, 2017 at 6:27 PM, Stephane Ducasse <stepharo.self(a)gmail.com <mailto:stepharo.self@gmail.com>> wrote: >>> This is supercool :) >>> Do you connect to fogbugz to grab the tasks? >>> >>> Stef >>> >>> On Sun, Apr 23, 2017 at 5:13 PM, Juraj Kubelka <juraj.kubelka(a)icloud.com <mailto:juraj.kubelka@icloud.com>> wrote: >>> Hi, >>> >>> We are happy to announce a new application called Pharo Sprint App. The main idea of the application comes from the whiteboard that have been used during Pharo Sprints and was also adopted in Chile. >>> >>> <Copia de whiteboard.jpeg> >>> >>> As the Pharo Sprint is organized in several places around the world, we miss the connection with other guys. For that reason we decided to move the physical whiteboard to the internet and developed Pharo Sprint App. >>> >>> <main-window.png> >>> >>> How does it work? Participants choose a case from the âproposed' or âallâ list. Once they are done, they move it to the âdoneâ list. We believe that the application will encourage other people, especially newcomers, to join us during the events and have a fun, together with other developers. >>> >>> How To Use It? >>> â¢ Download the latest image from Bintray <https://bintray.com/jurajkubelka/PharoSprint/build/_latestVersion#files> >>> â¢ Execute the image, using the corresponding VM for Pharo 6 >>> â¢ Run the application from World Menu / Communication / Pharo Sprint >>> â¢ Login, using your FogBugz account, wait a bit, then choose a case and have a happy programming :-) >>> >>> Everybody participating in the sprints should use the Pharo Sprint image. >>> >>> The upcoming event is on Friday April 28: https://association.pharo.org/event-2492488 <https://association.pharo.org/event-2492488> >>> >>> The application is deployed in Pharo 6 (32 and 64bits). More details are available at: https://github.com/JurajKubelka/PharoSprint <https://github.com/JurajKubelka/PharoSprint> >>> >>> I will appreciate any feedback. >>> >>> Have a fun! :-) >>> Juraj >>> >>> >>> >

April 24, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Juraj Kubelka

> On Apr 23, 2017, at 15:43, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > Impressive work indeed. > > I guess Marcus will be happy, you save him a lot of work being 'master of ceremony' at Sprints. This is also my idea, that the âmaster of ceremonyâ will get distributed :-) Juraj > >> On 23 Apr 2017, at 19:24, Tudor Girba <tudor(a)tudorgirba.com> wrote: >> >> Great work, Juraj! >> >> Doru >> >> >>> On Apr 23, 2017, at 5:13 PM, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: >>> >>> Hi, >>> >>> We are happy to announce a new application called Pharo Sprint App. The main idea of the application comes from the whiteboard that have been used during Pharo Sprints and was also adopted in Chile. >>> >>> <Copia de whiteboard.jpeg> >>> >>> As the Pharo Sprint is organized in several places around the world, we miss the connection with other guys. For that reason we decided to move the physical whiteboard to the internet and developed Pharo Sprint App. >>> >>> <main-window.png> >>> >>> How does it work? Participants choose a case from the âproposed' or âallâ list. Once they are done, they move it to the âdoneâ list. We believe that the application will encourage other people, especially newcomers, to join us during the events and have a fun, together with other developers. >>> >>> How To Use It? >>> â¢ Download the latest image from Bintray >>> â¢ Execute the image, using the corresponding VM for Pharo 6 >>> â¢ Run the application from World Menu / Communication / Pharo Sprint >>> â¢ Login, using your FogBugz account, wait a bit, then choose a case and have a happy programming :-) >>> >>> Everybody participating in the sprints should use the Pharo Sprint image. >>> >>> The upcoming event is on Friday April 28: https://association.pharo.org/event-2492488 >>> >>> The application is deployed in Pharo 6 (32 and 64bits). More details are available at: https://github.com/JurajKubelka/PharoSprint >>> >>> I will appreciate any feedback. >>> >>> Have a fun! :-) >>> Juraj >>> >> >> -- >> www.tudorgirba.com >> www.feenk.com >> >> "We can create beautiful models in a vacuum. >> But, to get them effective we have to deal with the inconvenience of reality." >> >> > >

April 24, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Juraj Kubelka

> On Apr 23, 2017, at 15:38, Ben Coman <btc(a)openInWorld.com> wrote: > > > > On Sun, Apr 23, 2017 at 11:13 PM, Juraj Kubelka <juraj.kubelka(a)icloud.com <mailto:juraj.kubelka@icloud.com>> wrote: > Hi, > > We are happy to announce a new application called Pharo Sprint App. The main idea of the application comes from the whiteboard that have been used during Pharo Sprints and was also adopted in Chile. > > <Copia de whiteboard.jpeg> > > As the Pharo Sprint is organized in several places around the world, we miss the connection with other guys. For that reason we decided to move the physical whiteboard to the internet and developed Pharo Sprint App. > > <main-window.png> > > How does it work? Participants choose a case from the âproposed' or âallâ list. Once they are done, they move it to the âdoneâ list. We believe that the application will encourage other people, especially newcomers, to join us during the events and have a fun, together with other developers. > > How To Use It? > â¢ Download the latest image from Bintray <https://bintray.com/jurajkubelka/PharoSprint/build/_latestVersion#files> > â¢ Execute the image, using the corresponding VM for Pharo 6 > â¢ Run the application from World Menu / Communication / Pharo Sprint > â¢ Login, using your FogBugz account, wait a bit, then choose a case and have a happy programming :-) > > Everybody participating in the sprints should use the Pharo Sprint image. > > The upcoming event is on Friday April 28: https://association.pharo.org/event-2492488 <https://association.pharo.org/event-2492488> > > The application is deployed in Pharo 6 (32 and 64bits). More details are available at: https://github.com/JurajKubelka/PharoSprint <https://github.com/JurajKubelka/PharoSprint> > > I will appreciate any feedback. > > Have a fun! :-) > Juraj > > > Thanks Juraj. This is great. I saw your testing in the discord chat and was curious. > > This reminds me, one thing I've wanted to do for a long time is type an Issue number into PharoLauncher > and have it download latest Image, get the issue title from Fogbugz to rename the Image, > start the image with a script to open Inbox ready on the Issue. > > If I ever do get to it, mixing in your sprint app might be cool. > > cheers -ben > Hi Ben, I like the idea. I will check the PharoLauncher source code in order to find out what code I can reuse. If you have any idea or knowledge that can help me, I will appreciate if you share it in the mailing list or here: https://github.com/JurajKubelka/PharoSprint/issues/9 <https://github.com/JurajKubelka/PharoSprint/issues/9> Thanks! Juraj

April 24, 2017

[ANN] Pharo Spring Friday, April 28

by marcus.denker＠inrira.fr

Hi, There will be again a Sprint this Friday. More infos here: https://association.pharo.org/event-2492488

April 24, 2017

Re: [Pharo-users] Gathering statistics on messages sent to an object

by Denis Kudriashov

Hi Alistair. Do you know that you are able to count any message send? (not only external). For this you need prevent meta recursion. Now inside message processing you do: aMessage sendTo: anObject which produces another intercepting message #perform:withArguments which repeats original message send. Fortunately Ghost handles such kind of meta recursion and there is no infinite loop here: any self-sends are ignored in such cases. If you want intercept any message try following code: ExternalSendTrace>>send: aMessage to: anObject | method | announcer announce: (ExternalSendAnnouncement message: aMessage trace: self). method := anObject class lookupSelector: aMessage selector. ^GHMetaMessages executeWith: anObject andArguments: aMessage arguments method: method In that case we lookup and execute method by using mirror primitive which not sends any message to object. For example: rect := 10@30 corner: 100@300. trace := ExternalSendStats logStatsFor: rect. rect area. trace stats. "a Dictionary(#area->1 #height->1 #width->1 )" Best regards, Denis 2017-04-24 14:43 GMT+02:00 Alistair Grant <akgrant0710(a)gmail.com>: > If you subscribe to pharo-dev you will have seen that I've been looking > at the primitives used in DiskStore. > > As part of that investigation I wanted to get an idea of which messages > are typically sent to DiskStore and how often. > > Denis Kudriashov provided a neat package that implements a "halt on > next object call". I've been wanting to play with the package for a > while and decided this was a good opportunity. > > I've extended that package to keep count of how many times messages are > sent to a target object, e.g.: > > > > | point trace | > > point := 2@3. > trace := ExternalSendStats logStatsFor: point. > point > x; > y; > angle; > x. > trace stats. > "a Dictionary( > #angle->1 > #x->2 > #y->1 )" > > > > The package is probably too simplistic, and there's bound to be other > ways to do this, but it met my immediate needs and gave me a chance to > try out the Ghost package. I'll extend it if and when I need to. > > Many thanks to Denis for making the Ghost package available, and > hopefully this is useful for someone, or at least triggers some new > ideas. > > Denis' original article is at: http://dionisiydk.blogspot.cz/ > 2016/04/halt-next-object-call.html > > The extensions can be installed with: > > Metacello new > baseline: 'AkgGhost'; > repository: 'github://akgrant43/akg-ghost:master/mc'; > load > > > > Cheers, > Alistair > >

April 24, 2017

Re: [Pharo-users] PMMatrix vs Matrix

by Stephane Ducasse

yes we should! On Mon, Apr 24, 2017 at 2:15 PM, Serge Stinckwich < serge.stinckwich(a)gmail.com> wrote: > Yes this what I was going to answer as well. Matrix in Pharo does not > implement the usual mathematical operators like PMMatrix. > Maybe should be rename as Array2D in order to avoid confusion in the > future. > > Regards, > > On Mon, Apr 24, 2017 at 1:54 PM, Stephane Ducasse > <stepharo.self(a)gmail.com> wrote: > > the matrix class is not really a matrix more a 2dArray > > no eigen values and the rest > > > > stef > > > > On Mon, Apr 24, 2017 at 12:04 PM, frankl1_miky < > mike1corporation(a)gmail.com> > > wrote: > >> > >> Hi, > >> Polymath come with PMMatrix class . what is the difference between > this > >> class and the native Matrix class. > >> > >> > >> > >> -- > >> View this message in context: > >> http://forum.world.st/PMMatrix-vs-Matrix-tp4943819.html > >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >> > > > > > > -- > Serge Stinckwich > UCN & UMI UMMISCO 209 (IRD/UPMC) > Every DSL ends up being Smalltalk > http://www.doesnotunderstand.org/ > >

April 24, 2017

Pharodays early rate deadline

by Stephane Ducasse

Hi the deadline to register to pharodays is approaching. After 29 of April you will pay more and we will not secure room for the diner. Please register Stef

April 24, 2017

Gathering statistics on messages sent to an object

by Alistair Grant

If you subscribe to pharo-dev you will have seen that I've been looking at the primitives used in DiskStore. As part of that investigation I wanted to get an idea of which messages are typically sent to DiskStore and how often. Denis Kudriashov provided a neat package that implements a "halt on next object call". I've been wanting to play with the package for a while and decided this was a good opportunity. I've extended that package to keep count of how many times messages are sent to a target object, e.g.: | point trace | point := 2@3. trace := ExternalSendStats logStatsFor: point. point x; y; angle; x. trace stats. "a Dictionary( #angle->1 #x->2 #y->1 )" The package is probably too simplistic, and there's bound to be other ways to do this, but it met my immediate needs and gave me a chance to try out the Ghost package. I'll extend it if and when I need to. Many thanks to Denis for making the Ghost package available, and hopefully this is useful for someone, or at least triggers some new ideas. Denis' original article is at: http://dionisiydk.blogspot.cz/2016/04/halt-next-object-call.html The extensions can be installed with: Metacello new baseline: 'AkgGhost'; repository: 'github://akgrant43/akg-ghost:master/mc'; load Cheers, Alistair

April 24, 2017

Re: [Pharo-users] PMMatrix vs Matrix

by Serge Stinckwich

Yes this what I was going to answer as well. Matrix in Pharo does not implement the usual mathematical operators like PMMatrix. Maybe should be rename as Array2D in order to avoid confusion in the future. Regards, On Mon, Apr 24, 2017 at 1:54 PM, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > the matrix class is not really a matrix more a 2dArray > no eigen values and the rest > > stef > > On Mon, Apr 24, 2017 at 12:04 PM, frankl1_miky <mike1corporation(a)gmail.com> > wrote: >> >> Hi, >> Polymath come with PMMatrix class . what is the difference between this >> class and the native Matrix class. >> >> >> >> -- >> View this message in context: >> http://forum.world.st/PMMatrix-vs-Matrix-tp4943819.html >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> > -- Serge Stinckwich UCN & UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://www.doesnotunderstand.org/

April 24, 2017

Re: [Pharo-users] PMMatrix vs Matrix

by Stephane Ducasse

the matrix class is not really a matrix more a 2dArray no eigen values and the rest stef On Mon, Apr 24, 2017 at 12:04 PM, frankl1_miky <mike1corporation(a)gmail.com> wrote: > Hi, > Polymath come with PMMatrix class . what is the difference between this > class and the native Matrix class. > > > > -- > View this message in context: http://forum.world.st/ > PMMatrix-vs-Matrix-tp4943819.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

April 24, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Alexandre Bergel

Oh! Juraj, wasnât it supposed to be packaged in the last version? Alexandre > On Apr 24, 2017, at 10:29 AM, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > Hi, > >> On 24 Apr 2017, at 09:04, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: >> >> Hi! >> >> One very important aspect of Jurajâs work, is that _participants at a sprint should use the sprint tool_. It comes with the latest Pharo image (i.e. what has to be used in a sprint). > > no it doesnât :) > (and it wont, at least this version) > > but yes, everybody should use it ;) > > >> >> So, letâs use it on Friday! > > +1 > > Esteban > >> >> Cheers, >> Alexandre >> >> >>> On Apr 24, 2017, at 8:05 AM, K K Subbu <kksubbu.ml(a)gmail.com> wrote: >>> >>> On Sunday 23 April 2017 08:43 PM, Juraj Kubelka wrote: >>> >>>> As the Pharo Sprint is organized in several places around the world, we >>>> miss the connection with other guys. For that reason we decided to move >>>> the physical whiteboard to the internet and developed Pharo Sprint App. >>> >>> Excellent idea and a very useful tool! It took me just a few minutes to download it and post my first fix through it. >>> >>> What would be workflow for using this app? Is this only for Pharo Sprint participants or can others also use it? >>> >>> I faced a minor problem in the UI. The top half of login/password text input fields got clipped by title bar, when I opened it up first. Later the Update/Logout buttons also have their top border clipped off. >>> >>> Regards .. Subbu >>> >> >> -- >> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >> Alexandre Bergel http://www.bergel.eu >> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >> >> >> >> > > -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

April 24, 2017

PMMatrix vs Matrix

by frankl1_miky

Hi, Polymath come with PMMatrix class . what is the difference between this class and the native Matrix class. -- View this message in context: http://forum.world.st/PMMatrix-vs-Matrix-tp4943819.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

April 24, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Esteban Lorenzano

Hi, > On 24 Apr 2017, at 09:04, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > > Hi! > > One very important aspect of Jurajâs work, is that _participants at a sprint should use the sprint tool_. It comes with the latest Pharo image (i.e. what has to be used in a sprint). no it doesnât :) (and it wont, at least this version) but yes, everybody should use it ;) > > So, letâs use it on Friday! +1 Esteban > > Cheers, > Alexandre > > >> On Apr 24, 2017, at 8:05 AM, K K Subbu <kksubbu.ml(a)gmail.com> wrote: >> >> On Sunday 23 April 2017 08:43 PM, Juraj Kubelka wrote: >> >>> As the Pharo Sprint is organized in several places around the world, we >>> miss the connection with other guys. For that reason we decided to move >>> the physical whiteboard to the internet and developed Pharo Sprint App. >> >> Excellent idea and a very useful tool! It took me just a few minutes to download it and post my first fix through it. >> >> What would be workflow for using this app? Is this only for Pharo Sprint participants or can others also use it? >> >> I faced a minor problem in the UI. The top half of login/password text input fields got clipped by title bar, when I opened it up first. Later the Update/Logout buttons also have their top border clipped off. >> >> Regards .. Subbu >> > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > >

April 24, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Guillermo Polito

Nice :) Thanx Juraj On Mon, Apr 24, 2017 at 9:04 AM, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > Hi! > > One very important aspect of Jurajâs work, is that _participants at a > sprint should use the sprint tool_. It comes with the latest Pharo image > (i.e. what has to be used in a sprint). > > So, letâs use it on Friday! > > Cheers, > Alexandre > > > > On Apr 24, 2017, at 8:05 AM, K K Subbu <kksubbu.ml(a)gmail.com> wrote: > > > > On Sunday 23 April 2017 08:43 PM, Juraj Kubelka wrote: > > > >> As the Pharo Sprint is organized in several places around the world, we > >> miss the connection with other guys. For that reason we decided to move > >> the physical whiteboard to the internet and developed Pharo Sprint App. > > > > Excellent idea and a very useful tool! It took me just a few minutes to > download it and post my first fix through it. > > > > What would be workflow for using this app? Is this only for Pharo Sprint > participants or can others also use it? > > > > I faced a minor problem in the UI. The top half of login/password text > input fields got clipped by title bar, when I opened it up first. Later the > Update/Logout buttons also have their top border clipped off. > > > > Regards .. Subbu > > > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > >

April 24, 2017