August 2009 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] [squeak-dev] Squeak 4.x should adopt Pharo 1.0

by csrabak＠bol.com.br

If you proceed when getting evil and afterwards the warning that the method shouldn't be used don't you get String>>asUppercase? Em 11/08/2009 19:03, StÃ©phane Ducasse < stephane.ducasse(a)inria.fr > escreveu: 'eureka' . ' EUREKA' I get no single method.... On Aug 11, 2009, at 11:22 PM, Lawson English wrote: > StÃ©phane Ducasse wrote: >>> BTW, some of us Second LIfe types are starting to play with >>> Pharo/Seaside and various little issues keep popping up. I'm a total >>> Smalltalk >>> noob, but when I can't work through an example from the Squeak by >>> Example book, that suggests there's some interesting features that >>> should >>> be looked at... >>> >> >> A new version of SBE named pharo by example is under preparation. >> Now do not hesitate to ask question even if you think that they look >> silly. >> Silly questions do not exist. >> >> Stef >> >> > > Great to hear. However, pharo gets upset by putting 'eureka'. 'EUREKA' > into the method finder. > > Says that is EVIL. > > > I gotta assume that that is just a simple bug, right, or is that > facility no longer to be supported for some reason. > > > L > > _______________________________________________ > 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

Aug. 12, 2009

Re: [Pharo-project] Complex neurotic

by Schwab,Wilhelm K

AFAIK, one has to be careful ordering complex numbers: http://www.physicspost.com/physicsforums/topic.asp-ARCHIVE=&TOPIC_ID=2779.h… If in doubt, I would #shouldNotImplement #< until we can get a conclusive answer. If you have defined it only for pure real or pure imaginary numbers (a little tricky with floating point though), then it clearly is ok; off those axes, I _think_ it breaks down. Bill -----Original Message----- From: pharo-project-bounces(a)lists.gforge.inria.fr [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Ken.Dickey Sent: Tuesday, August 11, 2009 6:50 PM To: pharo-project(a)lists.gforge.inria.fr Subject: [Pharo-project] Complex neurotic Q: What is the difference between a neurotic and a psychotic? A: A psychotic really thinks 2+2 = 5 A neurotic knows 2+2 = 4, but just can't stand it. ;^) I really can't stand some of the oddities of Complex numbers in Squeak [Note Mantis bug 311 -- http://bugs.squeak.org/view.php?id=3311] I would find the following to be more rational: 3 asComplex. "no change--> (3+0i)" 3 asComplex isNumber. "no change--> true" -1 asComplex < 1 asComplex. "--> true" -4 sqrt. "--> 2.0i" -3 ln. "--> (1.098612288668382+3.141592653589793i)" ((1/2) + 2.1i) sin arcSin. "--> (0.500000000000001+2.1i)" ((((1/2) + 2.1i) sin arcSin) roundTo: 0.000001) = ((1/2) + 2.1i). "--> true" ((((1/2) + 2.1i) tanH arcTanH) roundTo: 0.000001) = ((1/2) + 2.1i). "--> true" Attached is a change set which adds a number of tests for Complex and the changes for Complex which allow those tests to pass in Pharo1.0beta update: #10413. Note that Complex becomes a subclass of Magnitude. I thought it would be useful to post the code first for your thoughts and any code cleanups. As an occasional Smalltalk user, you may wish to correct some of my idioms. Please forgive an old newbie. Thanks in advance, -KenD [Ken.Dickey(a)whidbey.com] PS: Yes this is MIT. I signed and sent in the copyright form..

Aug. 12, 2009

Re: [Pharo-project] [Ann] RFB/VNC fully configurable by code.

by Mariano Martinez Peck

2009/8/11 Miguel Enrique CobÃ¡ Martinez <miguel.coba(a)gmail.com> > El mar, 11-08-2009 a las 14:42 -0100, Mariano Martinez Peck escribiÃ³: > > > > > I also thought in a Seaside/Pier component similar to the morph to > > start/stop the vnc. For a Pier application it can be under "System > > Managment" :) > > > > > The seaside examples already has a component to control the RFB server. > Search for WAVNCComponent. You can adapt it or make a new one specific > to pier. Also, you can control the server directly with the RFBServer > from pier. Nice! I wasn't aware. Thanks for the tip. > > > What I though was intended to apps that are not web apps/seaside apps > and that run on a headless server. For them a way to start/stop the RFB > server on demand will save cpu cycles for what the app does. > > Sounds a good thing for a Magma server :) > > -- > Miguel CobÃ¡ > http://miguel.leugim.com.mx > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

Aug. 12, 2009

[Pharo-project] Complex neurotic

by Ken.Dickey

Q: What is the difference between a neurotic and a psychotic? A: A psychotic really thinks 2+2 = 5 A neurotic knows 2+2 = 4, but just can't stand it. ;^) I really can't stand some of the oddities of Complex numbers in Squeak [Note Mantis bug 311 -- http://bugs.squeak.org/view.php?id=3311] I would find the following to be more rational: 3 asComplex. "no change--> (3+0i)" 3 asComplex isNumber. "no change--> true" -1 asComplex < 1 asComplex. "--> true" -4 sqrt. "--> 2.0i" -3 ln. "--> (1.098612288668382+3.141592653589793i)" ((1/2) + 2.1i) sin arcSin. "--> (0.500000000000001+2.1i)" ((((1/2) + 2.1i) sin arcSin) roundTo: 0.000001) = ((1/2) + 2.1i). "--> true" ((((1/2) + 2.1i) tanH arcTanH) roundTo: 0.000001) = ((1/2) + 2.1i). "--> true" Attached is a change set which adds a number of tests for Complex and the changes for Complex which allow those tests to pass in Pharo1.0beta update: #10413. Note that Complex becomes a subclass of Magnitude. I thought it would be useful to post the code first for your thoughts and any code cleanups. As an occasional Smalltalk user, you may wish to correct some of my idioms. Please forgive an old newbie. Thanks in advance, -KenD [Ken.Dickey(a)whidbey.com] PS: Yes this is MIT. I signed and sent in the copyright form..

Aug. 11, 2009

Re: [Pharo-project] Seaside bug revisted, and a question about #on:do:

by Schwab,Wilhelm K

Mariano, Ok, so you hid it in the readme file :) I had next to no trouble finding it in the archives, but it's such a small (but critical) instruction that we probably should put it on the download page. There is already a "table" of vms; along with OS andalternative, we might add a release notes column and have a 64 bit link there?? The notes could also include things like dragging the image over the VM on windows, a sample shell script and mention of execution permissions on Linux. BTW, pharo-project.org is really starting to look nice. While I'm at it, on the home page under Quick Links, it might be better to replace "report a bug" with "Report or View Bugs" as that is what the link does - no big deal if others disagree. Bill ________________________________ From: pharo-project-bounces(a)lists.gforge.inria.fr [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Mariano Martinez Peck Sent: Tuesday, August 11, 2009 4:36 PM To: Pharo-project(a)lists.gforge.inria.fr Subject: Re: [Pharo-project] Seaside bug revisted, and a question about #on:do: On Tue, Aug 11, 2009 at 8:26 PM, Schwab,Wilhelm K <bschwab(a)anest.ufl.edu<mailto:bschwab@anest.ufl.edu>> wrote: I just put the beta on a 64 bit machine. Mariano's sudo apt-get install ia32-libs got the VM running. That was easy enough to find by searching the archives, but it seems like it should be put where is is harder to miss. Any ideas as to where that should be? Hi Billl. It has already been discussed together with Damien and Miguel and it was put in the readme.txt of the latest Pharo Linux VM. If you see pharo-vm-0.15.2d-linux you will see that readme.txt says: "If you have a 64-bit Linux kernel, you have to install the 32-bit compatibility library. For example, in Ubuntu you have to install ia32-libs: $ sudo aptitude install ia32-libs" Do you want to put it in another place? Where? cheers, Mariano To test the VM, I tried the web beta as-is, and hit the Seaside "a service is already running..." bug. That got me thinking about things that might have been truncated/skipped due to the error. It did not take long to see that #send:toClassesNamedIn:with: is already protected with #on:do:. So what is all this about? The error block catches Exception, and I _think_ I was told that was a bad idea. That might be Dolphin-specific and not applicable here, but I thought it worth asking. Bill _______________________________________________ Pharo-project mailing list Pharo-project(a)lists.gforge.inria.fr<mailto:Pharo-project@lists.gforge.inria.fr> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Aug. 11, 2009

Re: [Pharo-project] Display depth on Linux

by Mariano Martinez Peck

On Tue, Aug 11, 2009 at 8:07 AM, David T. Lewis <lewis(a)mail.msen.com> wrote: > On Tue, Aug 11, 2009 at 08:26:20AM +0100, Douglas Brebner wrote: > > St?phane Ducasse wrote: > > > Guys > > > > > > could you create a wiki pages with "Possible problems with interacting > > > tools on windows" > > > or something like that? > > > > > > Stef > > > > > > > > I believe this problem is due to a combination of the unix vm putting > > garbage into the alpha channel (the extra 8bits in 32bit colour after > > RGB) and a Composite extension manager active on the X server. I think > > Metacity uses Composite as does Compiz and a few others. > > I have zero expertise in this area, but in case it is related: Juan > Vuletich posted a fix yesterday in Mantis 7376: "Bug in BitBlt (rgbMul > sets alpha to 0)". I can't tell if this relates to the problem you are > describing, but FWIW Juan's fix is in the latest VMMaker on SqueakSource > (as of yesterday), so if you are building your on VM you can try it > and see if it makes a difference. Mmmm wierd. There are several tickets for the same problem? http://bugs.squeak.org/view.php?id=7376 http://bugs.squeak.org/view.php?id=7068 http://bugs.squeak.org/view.php?id=7001 http://dev.laptop.org/ticket/6759 Others mails: http://lists.squeakfoundation.org/pipermail/squeak-dev/2008-August/130935.h… Other solution? http://squeakvm.org/cgi-bin/viewcvs.cgi/branches/olpc/platforms/unix/vm-dis… I am confused haha. thanks! Mariano > > Dave > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

Aug. 11, 2009

Re: [Pharo-project] [squeak-dev] Squeak 4.x should adopt Pharo 1.0

by Lawson English

Doing an update. This is the version found in teh one-click installer package at: http://www.seaside.st/download/squeak StÃ©phane Ducasse wrote: > Oops that old. > I suggest you to download a more recent version > Mine is already old :) > Let us know if you still have problem. It may be one package loaded in > the pharo (non core) that is > doing something fishy. > > Stef > >

Aug. 11, 2009

Re: [Pharo-project] [squeak-dev] Squeak 4.x should adopt Pharo 1.0

by StÃ©phane Ducasse

Oops that old. I suggest you to download a more recent version Mine is already old :) Let us know if you still have problem. It may be one package loaded in the pharo (non core) that is doing something fishy. Stef On Aug 12, 2009, at 12:10 AM, Lawson English wrote: > StÃ©phane Ducasse wrote: >> Which image are you using? >> Because on mine = core 10371 >> deprecatedWarning = on >> I do not get them. >> >> Stef > > Pharo0.1 > Latest update: #10343 > > will try running updater. Likely that I downloaded a pristine copy > and started using it without updating first. > > > > Lawson > >

Aug. 11, 2009

[Pharo-project] Fwd: [squeak-dev] Class var order in Monticello (bogus dirty packages)

by StÃ©phane Ducasse

we should check that because indeed from time to time we get the symptoms even if we integrated part of the solution long time ago. Stef Begin forwarded message: > From: Eliot Miranda <eliot.miranda(a)gmail.com> > Date: August 11, 2009 6:21:32 PM CEDT > To: The general-purpose Squeak developers list <squeak-dev(a)lists.squeakfoundation.org > > > Subject: Re: [squeak-dev] Class var order in Monticello (bogus dirty > packages) > Reply-To: The general-purpose Squeak developers list <squeak-dev(a)lists.squeakfoundation.org > > > > > > On Sun, Aug 9, 2009 at 4:36 PM, Andreas Raab <andreas.raab(a)gmx.de> > wrote: > Hi - > > I have noticed several times that Monticello sometimes reports a > different order of class variables than the one that's in the image > and I think I finally found out what causes it. The problem seems to > be that the MCClassDefinition is constructed from a Set of class var > names (i.e., Delay classVarNames => a Set(#TimerEventLoop > #SuspendedDelays #TimingSemaphore #ActiveDelayStartTime #ActiveDelay > #FinishedDelay #ScheduledDelay #RunTimerEventLoop #AccessProtect) > derived from the class' classPool. > > The thing is, the order in that class pool can differ. When you add > or remove class var names, the names can get shuffled around and > there is no telling what the exact enumeration order will be. Once > the order is different it's a real pain because Monticello will > always report differences but without a way to correct the issue. > > I'm wondering what possible fixes might be. In particular > considering that reordering the class var names will mark any > packages dirty for the same reasons. > > The fix we implemented at Cadence was to sort the classVars array > when initializing an MCClassDefinition, which has the advantage of > being really simple, but the downside of producing false positives > for packages that have been stored with unsorted class vars. But > this isn't the full fix. One should also sort the pool n ames. Fix > attached. > > I think this is a better approach than ignoring sort order when > comparing because it mimics the treatment of class definitions in > the system, where class var names and pool names are also sorted. > > > Any ideas? > > Cheers, > - Andreas > > >

Aug. 11, 2009

Re: [Pharo-project] [squeak-dev] Squeak 4.x should adopt Pharo 1.0

by Lawson English

StÃ©phane Ducasse wrote: > Which image are you using? > Because on mine = core 10371 > deprecatedWarning = on > I do not get them. > > Stef Pharo0.1 Latest update: #10343 will try running updater. Likely that I downloaded a pristine copy and started using it without updating first. Lawson

Aug. 11, 2009