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

Re: [Pharo-project] CrLfFileStream class>>new?!

by Henrik Johansen

Den 09.03.2010 14:38, skrev Adrian Lienhard: > I was just puzzled why "CrLfFileStream defaultToLF" does not work until I figured that CrLfFileStream new returns an instance of a different class: > > CrLfFileStream class>>new > ^ (MultiByteFileStream new) wantsLineEndConversion: true; yourself. > > > Does somebody know what the point is? I really sometimes wonder why good coders write such code, and not even care to add a comment... > > Cheers, > Adrian > ___________________ > http://www.adrian-lienhard.ch/ > CrLfFileStream does not handle any encodings other than latin1. My guess is: - MultiByteFileStream probably didn't exist when it was created. - Using a MultiByteFileStream with no encoding, but a lineEndConvention is now the preferred method, but CrLfFileStream was kept for backwards-compatability. Cheers, Henry

March 9, 2010

[Pharo-project] CrLfFileStream class>>new?!

by Adrian Lienhard

I was just puzzled why "CrLfFileStream defaultToLF" does not work until I figured that CrLfFileStream new returns an instance of a different class: CrLfFileStream class>>new ^ (MultiByteFileStream new) wantsLineEndConversion: true; yourself. Does somebody know what the point is? I really sometimes wonder why good coders write such code, and not even care to add a comment... Cheers, Adrian ___________________ http://www.adrian-lienhard.ch/

March 9, 2010

Re: [Pharo-project] [squeak-dev] Alien on Win32 - Test and Integration into VM Sources

by David T. Lewis

Thanks, I opened a Mantis report to track this for the VM developers http://bugs.squeak.org/view.php?id=7475 You can attach patches to the Mantis report (or I'll try to collect them from the previous posts, but I'm short of time this week). Andreas can reply WRT the Windows patches. FYI, Ian (Unix VM) has been busy elsewhere but will probably be back shortly (next week I think). Ian prefers to receive platform files (whole files, not diffs) by email if possible (but I will try to coordinate if I can get pointers to the right patches). IIUC no changes are required to the VMMaker package itself, as the Alien changes are maintained in separate repository. Please correct me if that is not right. Follow up discussion should go to the vm-dev list unless of general interest. Thanks! Dave On Tue, Mar 09, 2010 at 12:53:17PM +0100, Torsten Bergmann wrote: > Cool! With Alien working on Win32 we now have it on all > major platforms (windows, linux, mac) > > I send this mail CC to the squeak-dev/pharo-dev list so > others are able to try the plugin on Win32 and give feedback. > > This mail also goes to vm-dev list and I hope one of the > vm-maintainers (Andreas, Elliot, David? - also in CC:) are > able to respond to you directly on how to integrate your changes > into the offical win32 vm sources. > > Thx > Torsten > > -------- Original-Nachricht -------- > Datum: Tue, 9 Mar 2010 09:47:45 +0100 > Von: "Schmidt, Marco" <Marco.Schmidt AT eads.com> > An: "Torsten Bergmann" <astares AT gmx.de> > CC: ml-node+104410-17186360-21457(a)n4.nabble.com > Betreff: AW: Test Alien on Win32... > > I added a zip file with the exe and the needed dlls to the bug 1360 (http://code.google.com/p/pharo/issues/detail?id=1360) > > I tested in the last days CairoGraphics and my own CurlLibrary binding - success! I have working callbacks for Curl too. > > I cloned the svn repo into a git repo. What is the correct format to submit patches to the developers? > > Marco > > > -- > Sicherer, schneller und einfacher. Die aktuellen Internet-Browser - > jetzt kostenlos herunterladen! http://portal.gmx.net/de/go/atbrowser

March 9, 2010

Re: [Pharo-project] Alien on Win32 - Test and Integration into VM Sources

by Henrik Johansen

Den 09.03.2010 12:54, skrev Schwab,Wilhelm K: > How do I get my hands on the Linux plugin? > > Javier documented the journey to a buildable plugin quite extensively on the list. So either read and learn from his missteps in the thread "Trying to build alien plugin in linux", or ask him for a location where VM + plugin is available. On another note, the Alien package on SqueakSource could use some cleanup. Alot of the methods in Alien-Core has since been included in both Pharo and Squeak Trunk as part of Eliots changes, so should be split of to a separate package loadable if needed (in older images, I assume). The notion of an AlienLibrary is also a new addition and at least the win32 examples are no longer in sync, since Alien lookup:inLibrary: can no longer be used to get a function pointer in any given library. Cheers, Henry

March 9, 2010

Re: [Pharo-project] Alien on Win32 - Test and Integration into VM Sources

by Schwab,Wilhelm K

How do I get my hands on the Linux plugin? -----Original Message----- From: pharo-project-bounces(a)lists.gforge.inria.fr [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Torsten Bergmann Sent: Tuesday, March 09, 2010 6:53 AM To: pharo-project(a)lists.gforge.inria.fr; squeak-dev(a)lists.squeakfoundation.org; vm-dev(a)lists.squeakfoundation.org Cc: andreas.raab(a)gmx.de Subject: [Pharo-project] Alien on Win32 - Test and Integration into VM Sources Cool! With Alien working on Win32 we now have it on all major platforms (windows, linux, mac) I send this mail CC to the squeak-dev/pharo-dev list so others are able to try the plugin on Win32 and give feedback. This mail also goes to vm-dev list and I hope one of the vm-maintainers (Andreas, Elliot, David? - also in CC:) are able to respond to you directly on how to integrate your changes into the offical win32 vm sources. Thx Torsten -------- Original-Nachricht -------- Datum: Tue, 9 Mar 2010 09:47:45 +0100 Von: "Schmidt, Marco" <Marco.Schmidt AT eads.com> An: "Torsten Bergmann" <astares AT gmx.de> CC: ml-node+104410-17186360-21457(a)n4.nabble.com Betreff: AW: Test Alien on Win32... I added a zip file with the exe and the needed dlls to the bug 1360 (http://code.google.com/p/pharo/issues/detail?id=1360) I tested in the last days CairoGraphics and my own CurlLibrary binding - success! I have working callbacks for Curl too. I cloned the svn repo into a git repo. What is the correct format to submit patches to the developers? Marco -- Sicherer, schneller und einfacher. Die aktuellen Internet-Browser - jetzt kostenlos herunterladen! http://portal.gmx.net/de/go/atbrowser _______________________________________________ Pharo-project mailing list Pharo-project(a)lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

March 9, 2010

Re: [Pharo-project] networking problem (repost)

by Schwab,Wilhelm K

The only thing I do not like is going back to when "addresses were just byte arrays." I think we should probably do that in the interest of time, but we in fact need to go the other way (certainly for 1.1), toward an InternetAddress class with aspects for address and host name (allowing lazy resolution in either direction). We should also separate port numbers from the address. Another thing we should do (again no later than 1.1) is separate the resolver into IPv4 and 6 subclasses to make it understandable. Bill -----Original Message----- From: pharo-project-bounces(a)lists.gforge.inria.fr [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Michael Rueger Sent: Tuesday, March 09, 2010 4:39 AM To: Pharo-project(a)lists.gforge.inria.fr Subject: Re: [Pharo-project] networking problem (repost) On 3/9/2010 10:08 AM, Michael Roberts wrote: > So now my conclusion is firmly we have to take a step back and > simplify. for pharo 1.0 unless we have someone with a lot of time i > do not feel we can untangle the resolver and socket code. We should As the one originally being responsible for integrating the new socket code I'm voting in favor of this solution. The new socket code was initiated in the OLPC project and I was (falsely) assuming that it it would be stable and/or be maintained to a satisfactory level. So either the OLPC people have fixes that we don't know about (just looked at the latest etoys image and the code seems to be the same) or it just happens to work for them. Or people using the etoys version simply don't do anything exciting with the network. Michael _______________________________________________ Pharo-project mailing list Pharo-project(a)lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

March 9, 2010

[Pharo-project] Alien on Win32 - Test and Integration into VM Sources

by Torsten Bergmann

Cool! With Alien working on Win32 we now have it on all major platforms (windows, linux, mac) I send this mail CC to the squeak-dev/pharo-dev list so others are able to try the plugin on Win32 and give feedback. This mail also goes to vm-dev list and I hope one of the vm-maintainers (Andreas, Elliot, David? - also in CC:) are able to respond to you directly on how to integrate your changes into the offical win32 vm sources. Thx Torsten -------- Original-Nachricht -------- Datum: Tue, 9 Mar 2010 09:47:45 +0100 Von: "Schmidt, Marco" <Marco.Schmidt AT eads.com> An: "Torsten Bergmann" <astares AT gmx.de> CC: ml-node+104410-17186360-21457(a)n4.nabble.com Betreff: AW: Test Alien on Win32... I added a zip file with the exe and the needed dlls to the bug 1360 (http://code.google.com/p/pharo/issues/detail?id=1360) I tested in the last days CairoGraphics and my own CurlLibrary binding - success! I have working callbacks for Curl too. I cloned the svn repo into a git repo. What is the correct format to submit patches to the developers? Marco -- Sicherer, schneller und einfacher. Die aktuellen Internet-Browser - jetzt kostenlos herunterladen! http://portal.gmx.net/de/go/atbrowser

March 9, 2010

Re: [Pharo-project] Fwd: Pharo by Example vol 2: new chapter available

by Alexandre Bergel

hi Hernan, You're very right saying that exception are often abused. In Java, you have a class Throwable. Cheers, Alexandre On 9 Mar 2010, at 08:10, Hernan Wilkinson wrote: > I haven't read the chapter yet, but there is something that bothers > me a little about the Exception hierarchy... what I've seen lately > is that Exceptions are not used only as exceptions but as a why to > get context information (for example Seaside with > WACurrentRequestContext), notify about an event (for example the > Notification class and subclasses), etc. > Despite if it is a good idea to solve this issues with exceptions, > calling Exception to the root of the hierarchy makes a lot of noise > (at least to me... I mean, a Notification is not an Exception, > something you were not expecting... getting the current context has > nothing to do with an exception...)... So, have you think about > changing the name to that class and making the protocol simpler (at > least for the root of the hierarchy) so all these types of uses fit > better than they do today? (for example, retrying a notification > looks like no sense, the same for wacurrentrequestcontext) > I think that the idea of "crawling" on the execution stack or the > execution flow have more sense as metaphor to look for another name... > Anyway, just a thought. > Bye, > Hernan. > > 2010/3/3 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > Thanks laurent > > Stef > > > Begin forwarded message: > >> From: laurent laffont <laurent.laffont(a)gmail.com> >> Date: March 3, 2010 10:09:32 PM GMT+01:00 >> To: StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> >> Subject: Re: [Pharo-project] Pharo by Example vol 2: new chapter >> available >> >> Some notes: >> >> Page 1: The basic idea behing exception .... I would expect a >> schema to show the workflow. >> >> Page 8: When an exception is signaled, the exception handling >> mechanism ....I've read it 3 times (for something finally quite >> simple), maybe it needs a sequence diagram or reformulation. >> >> Section 1.15: How exceptions are implemented. I had to read several >> times to understand, lot of informations to handle at once. >> >> Page 27 (bottom): For example, in method 1.1 ... specify "on page >> 19" or put the snippet again so we can easily compare with method >> 1.2. >> >> I like the "real code" examples. The "How..." sections too. >> >> When not to use Exceptions: not to "hide errors". I have too many >> times seen try ... catch ... to hide errors to the users. >> >> Maybe add a "When to use Exceptions" section, reminding the "Crash >> early" principle. >> >> Laurent Laffont >> >> >> On Tue, Mar 2, 2010 at 2:26 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr >> > wrote: >> Hi guys >> >> We just released a new chapter for Pharo by Example Vol.2 on >> Exceptions >> http://pharobyexample.org/ >> >> Let us know what you think. >> >> Stef >> >> _______________________________________________ >> 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 > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

March 9, 2010

Re: [Pharo-project] 11254 Image available

by Gary Chambers

For reference, Vista reports that the following are invalid characters: \ / : * ? " < > | Regards, Gary ----- Original Message ----- From: "StÃ©phane Ducasse" <stephane.ducasse(a)inria.fr> To: "Pharo Development" <Pharo-project(a)lists.gforge.inria.fr> Sent: Monday, March 08, 2010 8:38 PM Subject: [Pharo-project] 11254 Image available > Hi guys > > sorry for the fact that some of you could not update anymore due to a > stupid name for package (we should check > that : space ; / cannot be put in the package name. > > https://gforge.inria.fr/frs/download.php/26637/PharoCore-1.1-11254-UNSTABLE… > > Stef > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

March 9, 2010

Re: [Pharo-project] Fwd: Pharo by Example vol 2: new chapter available

by Hernan Wilkinson

I haven't read the chapter yet, but there is something that bothers me a little about the Exception hierarchy... what I've seen lately is that Exceptions are not used only as exceptions but as a why to get context information (for example Seaside with WACurrentRequestContext), notify about an event (for example the Notification class and subclasses), etc. Despite if it is a good idea to solve this issues with exceptions, calling Exception to the root of the hierarchy makes a lot of noise (at least to me... I mean, a Notification is not an Exception, something you were not expecting... getting the current context has nothing to do with an exception...)... So, have you think about changing the name to that class and making the protocol simpler (at least for the root of the hierarchy) so all these types of uses fit better than they do today? (for example, retrying a notification looks like no sense, the same for wacurrentrequestcontext) I think that the idea of "crawling" on the execution stack or the execution flow have more sense as metaphor to look for another name... Anyway, just a thought. Bye, Hernan. 2010/3/3 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > Thanks laurent > > Stef > > > Begin forwarded message: > > *From: *laurent laffont <laurent.laffont(a)gmail.com> > *Date: *March 3, 2010 10:09:32 PM GMT+01:00 > *To: *StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > *Subject: **Re: [Pharo-project] Pharo by Example vol 2: new chapter > available* > > Some notes: > > Page 1: The basic idea behing exception .... I would expect a schema to > show the workflow. > > Page 8: When an exception is signaled, the exception handling mechanism > ....I've read it 3 times (for something finally quite simple), maybe it > needs a sequence diagram or reformulation. > > Section 1.15: How exceptions are implemented. I had to read several times > to understand, lot of informations to handle at once. > > Page 27 (bottom): For example, in method 1.1 ... specify "on page 19" or > put the snippet again so we can easily compare with method 1.2. > > I like the "real code" examples. The "How..." sections too. > > When not to use Exceptions: not to "hide errors". I have too many times > seen try ... catch ... to hide errors to the users. > > Maybe add a "When to use Exceptions" section, reminding the "Crash early" > principle. > > Laurent Laffont > > > On Tue, Mar 2, 2010 at 2:26 PM, StÃ©phane Ducasse < > stephane.ducasse(a)inria.fr> wrote: > >> Hi guys >> >> We just released a new chapter for Pharo by Example Vol.2 on Exceptions >> http://pharobyexample.org/ >> >> Let us know what you think. >> >> Stef >> >> _______________________________________________ >> 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 >

March 9, 2010