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

[Pharo-project] hasInstanceVariableNamed: hasClassVariableNamed:
by StÃ©phane Ducasse Aug. 27, 2010

Aug. 27, 2010

Hi guys is it me or we are missing some cool and simple methods like hasInstanceVariableNamed: hasClassVariableNamed: ? Stef

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[Pharo-project] Fwd: Recherche des ingÃ©nieurs en dÃ©veloppement Smalltalk
by StÃ©phane Ducasse Aug. 27, 2010

Aug. 27, 2010

reply to YCH(a)gconsept.com > -------- Original Message -------- > Subject: Recherche des ingÃ©nieurs en dÃ©veloppement Smalltalk > Date: Thu, 26 Aug 2010 16:42:27 +0200 > From: Yohan CHOQUER <YCH(a)gconsept.com> > To: herve.verjus(a)univ-savoie.fr <herve.verjus(a)univ-savoie.fr> > > > > Bonjour Monsieur Verjus, > > Je suis Ã la recherche dâingÃ©nieurs en dÃ©veloppement Smalltalk et Ã la > lecture de diffÃ©rents forums et sites, je me suis aperÃ§u que vous > connaissiez bien ce langage. > > Peut-Ãªtre avez-vous dans votre entourage ou relations > scolaires/professionnelles des personnes pouvant Ãªtre intÃ©ressÃ©es par > cette demande. > > NâhÃ©sitez pas Ã revenir vers moi. > > Restant Ã votre disposition, > > Cordialement. > > * * > > *Yohan Choquer* > > IngÃ©nieur Commercial > *___________________________________________________________* > > GroupeConsept > > Informatique - Bureau d'Etudes > > Assistance Technique - Conseil - IngÃ©nierie - Formation > > ZAC Les Hauts de CouÃ«ron, Rue des forgerons, > > 44220 CouÃ«ron, France Plan d'accÃ¨s > <http://maps.google.fr/maps?f=q&hl=fr&geocode=&q=rue+des+forgerons+44220+cou…> > TÃ©l : +33 (0)2 51 83 03 00 > > Mob : +33 (0)6 03 18 60 82 > > Fax : +33 (0)2 51 83 03 01 > www.gconsept.com <http://www.gconsept.com/> > > *___________________________________________________________* > >

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[Pharo-project] String vs. ByteArray
by Schwab,Wilhelm K Aug. 26, 2010

Aug. 26, 2010

I have written a fair amount of code to exchange ascii data with something that, all too recently, I discovered has a binary capability that is potentially very useful to me. My question is how to get out of this mess :) I create write streams on strings and write characters and strings to them and send the contents to the system. How different are strings and byte arrays? I recall seeing stringOrByteArray in a few places (some of that code is my own, written in Dolphin and carefully structured to note the underlying string, etc.). Is there anything I should keep in mind to make the transition less painful? Can I keep the strings and simply add binary with #asString, or change it all to byte arrays and get away with a similar trick? Can a binary or text stream change "personality" on the fly? I suspect that there are many hard ways out of this and probably only one or two smart ways. Bill

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[Pharo-project] [update 1.2] #12114
by Marcus Denker Aug. 26, 2010

Aug. 26, 2010

12114 ----- Issue 2870: rescue alwaysShowScrollBars: Issue 2865: add #lines to String -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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[Pharo-project] String to Number conversion
by Guillermo Polito Aug. 26, 2010

Aug. 26, 2010

http://code.google.com/p/pharo/issues/detail?id=2857 Which will be the impact in the system and other tools to throw an error when the conversion cannot take place? I think an error must be thrown, but should it be in Pharo 1.2 or in next version? On Tue, Aug 24, 2010 at 11:45 AM, Nicolas Cellier < nicolas.cellier.aka.nice(a)gmail.com> wrote: > In squeak, (Integer readFromString: 'foo') ->Error > > Use: > - Integer readFrom: 'foo' ifFail: [0], tp get backward compatibility, > - (Integer readFrom: 'foo' ifFail: []), to get nil > > Though it is possible, I dislike anwsering nil, because it would mean > a bunch of #readFrom: send should be protected by #ifNil: Blocks... > 1) That's nonsense, readFrom:ifFail: already does the work. > 2) you cripple the code with Error conditions and end up with > unreadable C-looking like code > (3 lines of Error condition crap for 1 line of underlying algorithm > at every function call) > 3) Exception handling can avoid long chains of ifFail: / ifNil: tests > > But that conversation already took place many times... > > I'd like the readFrom:ifFail: form to be generalized to other objects, > with default behaviour raising an Error. What do you think ? > > Nicolas > > 2010/8/24 Johan Brichau <johan(a)inceptive.be>: > > > > On 24 Aug 2010, at 15:19, StÃ©phane Ducasse wrote: > > > >> I thought that readFromString: was raising an error and that > guessNumber* was returning zero > > > > I thought that too. I even have application code that shows that this > used to return nil in some version of Pharo... > > But: > > > > 'foo' asInteger = nil > > Integer readFromString: 'foo' = 0 > > 'foo' asNumber -> Error > > > > aargh :-( > > > > disclaimer: currently testing this in pharo1.1 > > > > Johan > > _______________________________________________ > > Pharo-project mailing list > > Pharo-project(a)lists.gforge.inria.fr > > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

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[Pharo-project] Fwd: Alien install issue?
by John M McIntosh Aug. 26, 2010

Aug. 26, 2010

Begin forwarded message: > From: Marcin Tustin <mm3(a)zepler.net> > Date: August 25, 2010 2:31:16 AM PDT > To: John McIntosh <johnmci(a)smalltalkconsulting.com> > Cc: A friendly place where any question about pharo is welcome <pharo-users(a)lists.gforge.inria.fr>, pharo-dev(a)lists.gforge.inria.fr > Subject: Re: [Pharo-users] Invoking external processes/IPC > > I'm not sure that I would class the fact that Alien wants the Special Objects Array to be bigger than it actually is to be a mere installation issue. > > On Wed, Aug 25, 2010 at 10:13 AM, John McIntosh <johnmci(a)smalltalkconsulting.com> wrote: > Ask on the Pharo list for help or instruction on loading alien into pharo, I didn't write any of the loader code so I can't deal with the fact it may or may not be broken. > > Sent from my iPad > > On 2010-08-25, at 1:30 AM, Marcin Tustin <mm3(a)zepler.net> wrote: > >> John, >> >> Do you have any intention of commenting on this, even to confirm that you are content for Alien to be incompatible with current versions of Pharo? >> >> Marcin >> >> On Mon, Aug 23, 2010 at 11:15 PM, Marcin Tustin <mm3(a)zepler.net> wrote: >> 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 >> >> >> >> -- >> 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 ===========================================================================

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[Pharo-project] Load OB in Pharo 1.2
by Mariano Martinez Peck Aug. 26, 2010

Aug. 26, 2010

Hi Lukas. Trying to evaluate: (ConfigurationOfOmniBrowser project version: '1.1-baseline') load: 'Core RB' I am trying to load OB and RB in Pharo 1.2 I found still refernces to Preferences and some other problems. I attach a changeset to fix the ones I found. If you want to check them lukas would be nice :) Thanks Mariano

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Aug. 26, 2010

Hi I should say that I liked the introduction of SharedPool made by andreas long time ago to replace PoolDictionaries. Now I was wondering why TextContants is not defined as a classVariable of a subclass of SharedPool like all the other PoolDictionaries? Stef

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Aug. 26, 2010

Hi I looked at the code of SystemNavigation and I think that this is the time to rewrite it :) I know I assemble the code from Browser and SystemDictionary at that time and we can see it. I would like also to have allClassesUsingPool: allClassesUsingPoolVariable: http://code.google.com/p/pharo/issues/detail?id=2868 In addition I would like to be able to specify the environment in which the navigation is done so that we could navigate multiple environments like the ones for bootstrapping the system we are fighting with :) http://code.google.com/p/pharo/issues/detail?id=2869 Stef

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[Pharo-project] would be nice to have a menu item for pointTo
by stephane ducasse Aug. 26, 2010

Aug. 26, 2010

so that we can select an object and invoke pointerFinder. Any taker? http://code.google.com/p/pharo/issues/detail?id=2867 Stef

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