August 2010 - Pharo-users - lists.pharo.org

Re: [Pharo-users] first draft of a pharo zen

by StÃ©phane Ducasse

Fixed :) again a violent proof of my english illiteracy. ;D > On 24 August 2010 12:51, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: >> Since some of you are newcomers to smalltalk or may be did not know the value of pharo core people >> here is a first draft I wrote this morning thinking about pharo >> >> http://code.google.com/p/pharo/wiki/PharoZen >> >> * Beauty in the code, beauty in the comments >> * Simplicity is beautiful >> * Communication is key >> * Classes structure our vocabulary >> * Messages are our vocabulary >> * Polymorphism is our esperanto >> * Better small polymorphic classes than a large ugly one > > This sounds wrong.. IDK, but i think a more correct form is following: > > Better a number of small polymorphic classes than a large ugly one > >> * Tests are important but can be replaced >> * Abstraction and composition are our friends >> * Explicit is better than implicit >> * Magic only at the right place >> * Simple processes to support progress >> * One step at a time >> * There is no unimportant fix >> * Quality is a emerging property >> * A system with robust abstractions that a single person can understand >> > > Amen :) > >> Stef >> Please comment also on the wiki. >> _______________________________________________ >> Pharo-users mailing list >> Pharo-users(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >> > > > > -- > Best regards, > Igor Stasenko AKA sig. > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

Aug. 24, 2010

Re: [Pharo-users] funny idea Symbol vs. Selector

by StÃ©phane Ducasse

we often use symbols for identity keys. Now I was just dreaming. >> Hi guys >> >> I'm thinking aloud... >> I was wondering if we could not take advantage of a new class: Selector. >> MethodDict would only contain selectors and not symbols. >> >> I remember that I talked about that with hernan. >> > > Hmm.. i don't see obvious advantages. Do you? > Most symbols (90% of cases), used as selectors, so it is likely that > such refactoring will be nothing more, > but just renaming the class :) > >> Stef >> >> >> _______________________________________________ >> Pharo-users mailing list >> Pharo-users(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >> > > > > -- > Best regards, > Igor Stasenko AKA sig. > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

Aug. 24, 2010

Re: [Pharo-users] first draft of a pharo zen

by Igor Stasenko

On 24 August 2010 12:51, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Since some of you are newcomers to smalltalk or may be did not know the value of pharo core people > here is a first draft I wrote this morning thinking about pharo > > http://code.google.com/p/pharo/wiki/PharoZen > > Â * Beauty in the code, beauty in the comments > Â * Simplicity is beautiful > Â * Communication is key > Â * Classes structure our vocabulary > Â * Messages are our vocabulary > Â * Polymorphism is our esperanto > Â * Better small polymorphic classes than a large ugly one This sounds wrong.. IDK, but i think a more correct form is following: Better a number of small polymorphic classes than a large ugly one > Â * Tests are important but can be replaced > Â * Abstraction and composition are our friends > Â * Explicit is better than implicit > Â * Magic only at the right place > Â * Simple processes to support progress > Â * One step at a time > Â * There is no unimportant fix > Â * Quality is a emerging property > Â * A system with robust abstractions that a single person can understand > Amen :) > Stef > Please comment Â also on the wiki. > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > -- Best regards, Igor Stasenko AKA sig.

Aug. 24, 2010

Re: [Pharo-users] funny idea Symbol vs. Selector

by Igor Stasenko

On 23 August 2010 23:26, stephane ducasse <stephane.ducasse(a)free.fr> wrote: > Hi guys > > I'm thinking aloud... > I was wondering if we could not take advantage of a new class: Selector. > MethodDict would only contain selectors and not symbols. > > I remember that I talked about that with hernan. > Hmm.. i don't see obvious advantages. Do you? Most symbols (90% of cases), used as selectors, so it is likely that such refactoring will be nothing more, but just renaming the class :) > Stef > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > -- Best regards, Igor Stasenko AKA sig.

Aug. 24, 2010

[Survey] Assess the cycles in your software

by Laval Jannik

Hi, A new reminder for our study. We need your help to finish the study. Thank you to all participants. Cheers, > >> >> On Jul 19, 2010, at 08:36 , Laval Jannik wrote: >> >>> Hi Pharoers, and Smalltalkers in general, >>> >>> Have you seen waited to assess the cycles in your software? Now you can :) >>> >>> We request some of you to perform an experiment using DSM to see your software package structure and to fix cycles between packages. Our tool shows dependencies between packages and highlight some bad dependencies generating structure cycles. It also helps to understand dependencies. >>> >>> Your goal is to fill a survey using our tool. >>> I prepared a mini-tutorial about DSM and eDSM. It can help you to understand the visualization tool. >>> >>> To ease the use of our tool, I loaded it in a PharoCore1.2. And there are two archives available: >>> - the first contains an image with our tool with a model of Pharo loaded in it, so you can play with our tool on pharo itself. It can be downloaded here: http://dl.dropbox.com/u/7739334/dsmWithPharo.zip. Pay attention, the image is slow. >>> - the second contains the same thing without the model of Pharo. Here, you have to load your code, then populate a moose model and use the tool. It can be downloaded here: http://dl.dropbox.com/u/7739334/dsmWithoutPharo.zip >>> The two archives contain the tutorial and the survey. If you are a pharo integrator, we suggest you to take the one with Pharo model loaded, else the other. >>> >>> To use our tool, load your tool in Pharo. Then do "MoosePanel open", and import your software in Moose by "import from Smalltalk image". When it is imported, select your project in the list on the left of MoosePanel, and select "all model packages" on the list on center. >>> >>> Then, you have two choices: >>> - you can scan all your project: right click on "all model packages" and do DSM. >>> - or select "all model packages" then select some packages in the next list and right click, do DSM. >>> >>> After that, you can perform the survey (with reading of the tutorial). We need your answers for the end of August. So, you have two months to do it. >>> >>> If you have any question, just let me know. >>> >>> Best regards, >>> Jannik. >>> >>> --- >>> Jannik Laval >>> PhD Student - Rmod Team - INRIA >>> Certified Project Management Associate (IPMA) >>> http://www.jannik-laval.eu >>> http://rmod.lille.inria.fr >>> --- >>> > --- Jannik Laval

Aug. 24, 2010

[Survey] Assess the cycles in your software

by Laval Jannik

Hi, A new reminder for our study. We need your help to finish the study. Thank you to all participants. Cheers, > > On Jul 19, 2010, at 08:36 , Laval Jannik wrote: > >> Hi Pharoers, and Smalltalkers in general, >> >> Have you seen waited to assess the cycles in your software? Now you can :) >> >> We request some of you to perform an experiment using DSM to see your software package structure and to fix cycles between packages. Our tool shows dependencies between packages and highlight some bad dependencies generating structure cycles. It also helps to understand dependencies. >> >> Your goal is to fill a survey using our tool. >> I prepared a mini-tutorial about DSM and eDSM. It can help you to understand the visualization tool. >> >> To ease the use of our tool, I loaded it in a PharoCore1.2. And there are two archives available: >> - the first contains an image with our tool with a model of Pharo loaded in it, so you can play with our tool on pharo itself. It can be downloaded here: http://dl.dropbox.com/u/7739334/dsmWithPharo.zip. Pay attention, the image is slow. >> - the second contains the same thing without the model of Pharo. Here, you have to load your code, then populate a moose model and use the tool. It can be downloaded here: http://dl.dropbox.com/u/7739334/dsmWithoutPharo.zip >> The two archives contain the tutorial and the survey. If you are a pharo integrator, we suggest you to take the one with Pharo model loaded, else the other. >> >> To use our tool, load your tool in Pharo. Then do "MoosePanel open", and import your software in Moose by "import from Smalltalk image". When it is imported, select your project in the list on the left of MoosePanel, and select "all model packages" on the list on center. >> >> Then, you have two choices: >> - you can scan all your project: right click on "all model packages" and do DSM. >> - or select "all model packages" then select some packages in the next list and right click, do DSM. >> >> After that, you can perform the survey (with reading of the tutorial). We need your answers for the end of August. So, you have two months to do it. >> >> If you have any question, just let me know. >> >> Best regards, >> Jannik. >> >> --- >> Jannik Laval >> PhD Student - Rmod Team - INRIA >> Certified Project Management Associate (IPMA) >> http://www.jannik-laval.eu >> http://rmod.lille.inria.fr >> --- >>

Aug. 24, 2010

first draft of a pharo zen

by StÃ©phane Ducasse

Since some of you are newcomers to smalltalk or may be did not know the value of pharo core people here is a first draft I wrote this morning thinking about pharo http://code.google.com/p/pharo/wiki/PharoZen * Beauty in the code, beauty in the comments * Simplicity is beautiful * Communication is key * Classes structure our vocabulary * Messages are our vocabulary * Polymorphism is our esperanto * Better small polymorphic classes than a large ugly one * Tests are important but can be replaced * Abstraction and composition are our friends * Explicit is better than implicit * Magic only at the right place * Simple processes to support progress * One step at a time * There is no unimportant fix * Quality is a emerging property * A system with robust abstractions that a single person can understand Stef Please comment also on the wiki.

Aug. 24, 2010

Re: [Pharo-users] WebClient

by Sven Van Caekenberghe

On 23 Aug 2010, at 19:59, Sven Van Caekenberghe wrote: > I will try to do this tomorrow. OK, I did a new port on the lastest versions: http://www.squeaksource.com/ADayAtTheBeach/WebClient-Core-SvenVanCaekenberg… ==================== Summary ==================== Name: WebClient-Core-SvenVanCaekenberghe.70 Author: SvenVanCaekenberghe Time: 24 August 2010, 10:59:05 am UUID: 5fecc631-281f-4be9-938a-4e6e45fda64a Ancestors: WebClient-Core-ar.69 New port to PharoCore 1.2 #12108: - added #asString where necessary - proper use of #pathForFile with FileUrl absoluteFromText: - use OSPlatform where necessary - don't use #and:and:and:and: - replace #squeakToUtf8 with convertToWithConverter: UTF8TextConverter new Together with: http://www.squeaksource.com/ADayAtTheBeach/Network-Protocols-SvenVanCaekenb… ==================== Summary ==================== Name: Network-Protocols-SvenVanCaekenberghe.56 Author: SvenVanCaekenberghe Time: 24 August 2010, 10:50:48 am UUID: 7acf743b-fd1a-41b7-ae78-242b66c54c96 Ancestors: Network-Protocols-StephaneDucasse.54 Switched to proper use of #pathForFile The results are similar: 45 run, 41 passes, 0 expected failures, 2 failures, 2 errors, 0 unexpected passes Regards, Sven

Aug. 24, 2010

Re: [Pharo-users] Freetype package breaks preferences browser?

by laurent laffont

To load VMMaker + plugins manually, you need to 'Scanner allowUnderscoreAsAssignment: true'. If you want to fix it, first allow underscore, then change to := using http://book.pharo-project.org/book/TipsAndTricks/FixingUnderscores and submit your package to David :) Generally, the way to load VMMaker and plugins into Pharo is to use ConfigurationOfVMMaker. Take a look at ConfigurationOfVMMaker>>#pharoUndescoreAssignment , ConfigurationOfVMMaker>>#fixVMMakerForPharo. Documentation: - http://book.pharo-project.org/book/Virtual-Machine/Building/VMMakerTool - http://book.pharo-project.org/book/Virtual-Machine section - http://pharocasts.blogspot.com/search/label/vm Cheers, Laurent Laffont http://pharocasts.blogspot.com/ http://magaloma.blogspot.com/ On Mon, Aug 23, 2010 at 9:39 PM, Marcin Tustin <mm3(a)zepler.net> wrote: > Thanks. I was under the impression from SqueakSource that the plugin needs > to be compiled. Is there another site for the project that is more > up-to-date/helpful/official? > > Given the screwy results once I loaded my changed version, I'm hesitant to > submit them. > > > On Mon, Aug 23, 2010 at 8:13 PM, Mariano Martinez Peck < > marianopeck(a)gmail.com> wrote: > >> >> >> On Mon, Aug 23, 2010 at 8:15 PM, Marcin Tustin <mm3(a)zepler.net> wrote: >> >>> Hi all, >>> >>> Further to my previous email, I decided to install OSProcess/VMMaker. >>> VMMaker installs a version of the freetype package, or rather fails to do >>> so. This appears to be because it use _ for assignment, rather :=. >>> Unfortunately, incompletely installing the package appears to have broken >>> the preferences browser (attempting to launch it from the main menu results >>> in an exception). >>> >>> >> First, why are you loading VMMaker? I guess you don't need this package >> if you won't compile the plugin by yourself. >> >> Second, Pharo 1.0 or Pharo 1.1 ? >> >> I guess Pharo 1.1. Can you try evaluating: >> >> Scanner allowUnderscoreAsAssignment: true. >> >> >>> Is there a way to undo the changes from the various packages loaded, and >>> thus return my image to a sane state, or an alternative way to enable _, so >>> that loading can continue? >>> >>> >> There is in Tools -> "Recent submissions" that may help you. >> >> In addition, you can take a text editor and open the .changes file and >> recover your lost code. >> >> >> >>> >>> Marcin >>> >>> -- >>> Marcin Tustin >>> Mobile: 07773787105 >>> Office: 020 3400 3259 >>> >>> _______________________________________________ >>> Pharo-users mailing list >>> Pharo-users(a)lists.gforge.inria.fr >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >>> >>> >> >> _______________________________________________ >> Pharo-users mailing list >> Pharo-users(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >> >> > > > -- > Marcin Tustin > Mobile: 07773787105 > Office: 020 3400 3259 > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > >

Aug. 24, 2010

Re: [Pharo-users] Invoking external processes/IPC

by Marcin Tustin

John, That is the installation recipe I was following, as should have been apparent from my description of the process followed given in my previous email. My problem occurred on the first step after loading the ConfigurationOfAlien package. For completeness, I tried loading ConfigurationOfAlien using Gofer, and the exact same thing occurred. I also note that Gofer>>addPackage is deprecated. Marcin On Mon, Aug 23, 2010 at 10:40 PM, John M McIntosh < johnmci(a)smalltalkconsulting.com> wrote: > LIkely the installation process is wrong, look at the > http://squeaksource.com/@EGv-75Ct7JEKFz5m/rnvjMef8 > and follow the instructions for installing there. > > On 2010-08-23, at 2:08 PM, Marcin Tustin wrote: > > Following Mariano's advice, I just tried installing Alien (using > Pharo-1.1-11406-rc3 with the Seaside RC3 image; this is a sane version, not > affected by previous package loading problems). > > I loaded ConfigurationOfAlien (ConfigurationOfAlien-KenTreis.26) using > Monticello, then executed ConfigurationOfAlien loadCore (as per the > instructions). That resulted in an error: > 'SystemDictionary>>recreateSpecialObjectsArray appears incompatible' raised > from ensureInSpecialObjectsArray. The cause appears to be that Alien wants > to be in the special objects array at 53, but the array is created to be > size 50. > > Proceeding through the error results in the predictable subscript out of > bounds error. > > running loadCore once more (second time) does the same thing. Doing it a > third time results in a message not understood 'initScannerForTokenization' > from Parser>>ParseSelector:. > > Any ideas? > > > On Mon, Aug 23, 2010 at 8:41 PM, Marcin Tustin <mm3(a)zepler.net> wrote: > >> Mariano, >> >> Thanks for this. I belive CommandShell depends on OSProcess. I am using >> windows, so I guess neither is a runner anyway. I'll try FFI/AlienFFI. >> >> Marcin >> >> >> On Mon, Aug 23, 2010 at 8:19 PM, Mariano Martinez Peck < >> marianopeck(a)gmail.com> wrote: >> >>> >>> >>> On Mon, Aug 23, 2010 at 7:45 PM, Marcin Tustin <mm3(a)zepler.net> wrote: >>> >>>> Hi all, >>>> >>>> I'm an occasional squeak/pharo dabbler, and I'm wondering what the >>>> recommended way of interacting with external processes is these days? >>>> >>>> Should I go through the process of getting all the VMMaker and OSProcess >>>> stuff, and build the OSProcess plugin, or is there some other way in Pharo >>>> to interact with the OS environment? >>>> >>>> >>> Hi. Which OS are you? because I think OSProcess is not working on >>> Windows. And I also think there are binaries for it, so you don't need to >>> generate .c from VMMaker neither compile c code to binary. >>> But I may be wrong. >>> >>> CommandShell ? >>> >>> Maybe using normal FFI or AlienFFI? They will let you invoke shared >>> libraries of the OS from Pharo. >>> >>> >>>> Alternatively, are people doing something (easy) with IPC mechanisms >>>> like named sockets or TCP streams? >>>> >>>> The "project" I'm working on is putting figlet on a website, just for >>>> fun. >>>> >>>> Marcin >>>> >>>> -- >>>> Marcin Tustin >>>> Mobile: 07773787105 >>>> Office: 020 3400 3259 >>>> >>>> _______________________________________________ >>>> Pharo-users mailing list >>>> Pharo-users(a)lists.gforge.inria.fr >>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >>>> >>>> >>> >>> _______________________________________________ >>> Pharo-users mailing list >>> Pharo-users(a)lists.gforge.inria.fr >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >>> >>> >> >> >> -- >> Marcin Tustin >> Mobile: 07773787105 >> Office: 020 3400 3259 >> > > > > -- > Marcin Tustin > Mobile: 07773787105 > Office: 020 3400 3259 > > > -- > =========================================================================== > John M. McIntosh <johnmci(a)smalltalkconsulting.com> Twitter: > squeaker68882 > Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com > =========================================================================== > > > > > -- Marcin Tustin Mobile: 07773787105 Office: 020 3400 3259

Aug. 23, 2010