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

[Pharo-project] Getting my head around low space
by Max Leske Nov. 4, 2010

Nov. 4, 2010

Hi I'm having trouble with low space warnings in Pharo. Is there a source on how much memory the image can get from the OS? Is there maybe a way to up that limit? I am loading a lot of data into the image and the limit at the moment seems to be around 500 MB. Thanks for any ideas. Cheers, Max

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Re: [Pharo-project] MicroSqueak Was: Re: [update 1.2] #12188
by StÃ©phane Ducasse Nov. 4, 2010

Nov. 4, 2010

> Now that John Maloney has released MicroSqueak as MIT > (http://web.media.mit.edu/~jmaloney/microsqueak/) shouldn't be worth to > analize it and see if that can be used as an alternative to build the > Pharo Kernel. Yes we already started. Now I think that producing microsqueak for pharo should just be the easy part. Because after you want to be able to load package and not a large mess. So this is why we did the two in parallel since august - trying to recompile a kernel (for example as specified by pharo kernel) and fixing all the packages problems we could find. So we build - tools to analyse the system - read a GNU ST based bootstrap - read chacharas (we did not read spoon because we could not find it) - We were thinking that in parallel we would use an approach like chacharas (dynamic creation of a kernel based on an expression definitively cool). gabriel started to have a look at to build a micro kernel. So now that we have one we will check it. > I know that Pavel (and now also Nicolas) have done a lot of work in > getting PharoCore stripped to a minimal kernel. > But as I understand, PharoKernel idea is to part from a core image, > reorganize packages, _unload_ what isn't needed and then shrink the > image to get a kernel image. Not necessarily. It was just starting somewhere. > The approach of John Maloney's MicroSqueak is the inverse, parting from > a source code representation and from there to aggregate code until have > a full image. I think that this is the way to go. But there is a middle man missing. > Of course the image from John hasn't all the improvements that Squeak > and Pharo have made to the core classes and that will mean a lot of > effort to reapply in order to get a modern image. It should not be that difficult. The core image does not have to have everything. It can be simple and part of it can be overload/overridden. Now the process to go from seed (microsqueak pharo name) to pharo kernel is really important because we will find all kinds of dead skeleton in the drawers :) > But I wonder, and not meaning to discourage any possibility, if isn't > worth to discuss the technical effort required and the pros/cons of each > approach and if isn't possible a reutilization of knowledge for this > very wanted goal of Pharo. We already did that :) And we will continue to learn and build. Stef > > Cheers > > -- > 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

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Re: [Pharo-project] XML Question
by StÃ©phane Ducasse Nov. 3, 2010

Nov. 3, 2010

Patching XMLNode>>printOn: like that seems to work. XMLNode>>printOn: aStream | writer | writer := XMLWriter on: aStream. >> writer enablePrettyPrinting. self printXMLOn: writer. writer flushMarkup. Now this is clearly not a good solution. I will change my code not to be based on the printOn behavior and use a writer instead. Now I do not understand why we create a writer for each printOn: message Stef On Oct 31, 2010, at 12:03 PM, StÃ©phane Ducasse wrote: > > In my really old code I wrote > > save > "self new save" > > | doc | > doc := self buildXML. > doc printOn: self stream > > > buildXML > > ^ self base asXML > > > Base>>asXML > "BDBase uniqueInstance asXML" > > | doc elem | > doc := XMLDocument new. > doc version: '1.0'. > elem := XMLElement > name: #Base > attributes: > (Dictionary new > at: 'date' put: Date today asString; > at: 'entriesNumber' put: self elements size asString; > at: 'note' put: self note asString; > yourself). > doc addElement: elem. > self elements do: [:each | elem addElement: each asXML]. > ^ doc > > Elements>>asXML > ^ XMLElement name: self class xmlName attributes: self attributes > > > So how can I control that each elements ends with a linebreak/cr whatever? > > Stef > > > > >

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[Pharo-project] XML Question
by stephane ducasse Nov. 3, 2010

Nov. 3, 2010

How can I control that each of the node of my document get printed a cr at its end? In the past I got that <?xml version="1.0" encoding="UTF-8" ?> <BDBase date="25 May 2010" entriesNumber="2440" note="nil"> <bd authors="Larcenet" editor="Dargaud" entryCreationDate="25 March 2006" entryNumber="1" number="1" original="true" serie="Nic oumouk" serieComplete="false" title="Total souk pour nic oumouk" year="2005"/> <bd authors="Greg" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="2" notes="sur le 4eme de couv aventure a manhattan" number="9" original="true" serie="Achille Talon" title="Les petits desseins d'Achille Talon" year="1974"/> <bd authors="Greg" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="3" notes="sur la couverture une histoire du journal tintin" number="13" original="true" serie="Achille Talon" title="Pas de pitiÃ© pour Achille Talon" year="1976"/> <bd aut Now I get <?xml version="1.0" encoding="UTF-8"?><Base date="31 October 2010" entriesNumber="2448" note="nil"><bd serieComplete="false" editor="Dargaud" entryCreationDate="25 March 2006" entryNumber="1" authors="Larcenet" title="Total souk pour nic oumouk" serie="Nic oumouk" original="true" number="1" year="2005" /><bd serieComplete="false" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="2" authors="Greg" title="Les petits desseins d'Achille Talon" serie="Achille Talon" original="true" notes="sur le 4eme de couv aventure a manhattan" number="9" year="1974" /><bd serieComplete="false" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="3" authors="Greg" title="Pas de pitiÃ© pour Achille Talon" serie="Achille Talon" original="true" notes="sur la couverture une histoire du journal tintin" number="13" year="1976" /><bd serieComplete="false" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="4" authors="Greg" title Thanks Stef

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[Pharo-project] [update 1.2] #12219
by Marcus Denker Nov. 2, 2010

Nov. 2, 2010

12219 ----- Issue 3145: Glamourous Theme integration Issue 3171: Fix an Undeclared ref in UndoRecord Issue 3170: Catchall for trivial cleanups Issue 2994: PharoKernel Part 18 (part 2) -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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Re: [Pharo-project] ISBN - barecode reader?
by StÃ©phane Ducasse Nov. 2, 2010

Nov. 2, 2010

mirko kiefer sent me I wrote a simple client for the Amazon Web Services in Node.js that allows you to do this kind of queries. The implementation is quite straightforward - porting it to Smalltalk shouldn't be much work. http://github.com/mirkok/Node-AWS On Oct 31, 2010, at 5:59 PM, laurent laffont wrote: > On Sun, Oct 31, 2010 at 5:31 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Thanks > > In fact after the remarks of denis I think that the most important aspect for me is how to query amazon web services :) > > > It's not the most intuitive web service but I've used it before. I will try from Pharo. > > You can have a look at: > http://www.morganney.com/blog/API/AWS-Product-Advertising-API-Requires-a-Si… > http://www.morganney.com/blog/API/Amazon-Web-Services-with-PHP-and-SimpleXM… > > Cheers, > > Laurent > > > > Stef > > On Oct 31, 2010, at 5:22 PM, laurent laffont wrote: > > > > > On Sun, Oct 31, 2010 at 4:58 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > > > > On Oct 31, 2010, at 4:29 PM, Denis Kudriashov wrote: > > > > > Why you need some library? > > > > I would like to see if I can use the webcam of my computer to scan isbn and get data for my comix. > > > > > > A solution seems to capture the image and then use zbar lib http://zbar.sourceforge.net/ > > > > Laurent > > > > > > > > Stef > > > > > With my experance barcode reader work like usual keyboard. When you scan barcode with device it chars input to current focused view like as you typed it from keyboard. > > > > > > 2010/10/31 stephane ducasse <stephane.ducasse(a)free.fr> > > > barecode > > > > > > > > > > > >

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Re: [Pharo-project] posting etiquette - please post new text at the *top* of your email
by Stephan Eggermont Nov. 1, 2010

Nov. 1, 2010

Niko wrote: >I think RFC1855-style messages still look beautiful, and they have >their place. But if you're too lazy to follow the gist of it, that's >alright with me, but then put your content at the top, so I don't have >to scroll down to Walhalla. The best thing to do is to make the mailing list enforce trimming and quote- to original text fraction and reject top- and bottom-posts. It tends to have a very good effect on readability of the list especially when looking back a few months/years later. Stephan

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[Pharo-project] XML package is barking at load time
by stephane ducasse Nov. 1, 2010

Nov. 1, 2010

Gofer new squeaksource: 'XMLSupport'; package: 'XML-Parser'; load. raise error because of tests not present. Did I do something wrong? Then why the configuration load pastell? why this is squeakCommon? Does it work if this is in pharo? Why do we load SIXX in gemstone? This configuration looks like a mess. Can somebody fix that. core should load the parser sixx may be sixx pastell should load core and pastell Stef version105: spec <version: '1.0.5' imports: #('1.0.5-baseline' )> spec for: #'common' do: [ spec blessing: #stable. spec author: 'Alexandre Bergel'. spec timestamp: '10/5/2010 14:06'. ]. spec for: #'squeakCommon' do: [ spec package: 'XML-Parser' with: 'XML-Parser-AlexandreBergel.93'; package: 'Pastell' with: 'Pastell-Alexandre_Bergel.18'.]. spec for: #'gemstone' do: [ spec project: 'Grease Core' with: '1.0-rc'. spec package: 'XML-Parser' with: 'XML-Parser.g-DaleHenrichs.93'; package: 'SIXX' with: 'SIXX-NorbertHartl.171'.]. Stef

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[Pharo-project] Failing tests in 1.2
by Marcus Denker Oct. 31, 2010

Oct. 31, 2010

... bug Issues for all of them http://code.google.com/p/pharo/issues/list?can=2&q=type=FailingTest -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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Re: [Pharo-project] InputEventFetcher starving all other processes
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

what is strange is that pharo does not change the vm code. One which OS are you? > Hi: > > On 31 Oct 2010, at 19:15, Stefan Marr wrote: > >> But the symptoms are that InputEventFetcher>>primGetNextEvent: delivers 500-1000x more events than EventSensor>>primGetNextEvent: in MVC or Squeak 4.1 images deliver. > Turns out that the array which is supposed to be filled in by '>>primGetNextEvent: array' does not get filled in correctly. > For some reason the old values stay in the array when there isn't any new event. may be a semaphore or something like that prevents some actions to happen. > > However, the very same code works for the non-Pharo images. > > Was there any change to the code in or related to this primitive (<primitive: 94>) lately? > > Thanks > Stefan > > > -- > Stefan Marr > Software Languages Lab > Vrije Universiteit Brussel > Pleinlaan 2 / B-1050 Brussels / Belgium > http://soft.vub.ac.be/~smarr > Phone: +32 2 629 2974 > Fax: +32 2 629 3525 > >

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Re: [Pharo-project] About literalDictionary
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

ok thanks! On Oct 31, 2010, at 9:23 PM, Levente Uzonyi wrote: > On Sun, 31 Oct 2010, stephane ducasse wrote: > >> Hi levente >> >> I saw that literalDictionary was removed from squeak compiler. >> Can you tell us the reason? > > - one class less in the system > - one class less in the HashedCollection hierarchy, so it will be easier to migrate HashedCollections to the new object format > - we have a nice example for PluggableDictionary > > > Levente > >> Tx >> >> Stef >> >> >

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Re: [Pharo-project] Fwd: about OPAX
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

Thanks!!! On Oct 31, 2010, at 8:06 PM, Tudor Girba wrote: > Done. > > Doru > > On 31 Oct 2010, at 12:17, StÃ©phane Ducasse wrote: > >> Hi doru >> >> could you take 15 min and add comments to the OPAX classes? >> in XMLSupport. There is not a line of comments, so I know that this is your private code that got there but still. >> >> Stef >> >> >> >> > > -- > www.tudorgirba.com > > "Don't give to get. Just give." > > > > > >

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Re: [Pharo-project] InputEventFetcher starving all other processes
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

Yes mike rueger changes the poll behavior of the sensor. The idea is to get rid of polling. Stef On Oct 31, 2010, at 5:06 PM, Stefan Marr wrote: > Hi: > > I am currently trying to get Pharo running smoothly on our RoarVM. > However, there seem to be some changes in Pharo which lead to the image not making any progress. > > For my experiments, I am using the latest 1.2 core image. > > Do you know about any changes in Pharo, compared to Squeak 4.1, with respect to input event retrieval and perhaps the event processing? > > Thanks > Stefan > > -- > Stefan Marr > Software Languages Lab > Vrije Universiteit Brussel > Pleinlaan 2 / B-1050 Brussels / Belgium > http://soft.vub.ac.be/~smarr > Phone: +32 2 629 2974 > Fax: +32 2 629 3525 > >

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[Pharo-project] About literalDictionary
by stephane ducasse Oct. 31, 2010

Oct. 31, 2010

Hi levente I saw that literalDictionary was removed from squeak compiler. Can you tell us the reason? Tx Stef

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Re: [Pharo-project] how to load magritte in seaside 3.0?
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

thanks lukas what is magritte2 vs magritte? Because I 'm trying to rebuild an old image of mine that use an old version of magritte Stef On Oct 31, 2010, at 10:11 AM, Lukas Renggli wrote: > Until somebody figures out why the configuration does not work you > could use the following script from > http://github.com/renggli/builder/blob/master/scripts/magritte2.st. Of > course this assumes that Seaside 3 is already loaded. > > Gofer new > renggli: 'magritte2'; > package: 'Magritte-Model'; > package: 'Magritte-Pharo-Model'; > package: 'Magritte-Seaside'; > package: 'Magritte-Pharo-Seaside'; > package: 'Magritte-Morph'; > package: 'Magritte-Tests-Model'; > package: 'Magritte-Tests-Pharo-Model'; > load. > > Lukas > > On 31 October 2010 09:38, stephane ducasse <stephane.ducasse(a)free.fr> wrote: >> Hi >> >> I want to load magritte with Seaside 3.0 and I followed >> >> http://book.pharo-project.org/book/PharoTools/Magritte/ >> >> Magritte2 For Pharo With Seaside 3 >> >> Gofer it >> squeaksource: 'MetacelloRepository'; >> package: 'ConfigurationOfMagritte'; >> load. >> (ConfigurationOfMagritte2 project version: '2.0.5') load >> >> but I does not load. >> >> Stef >> >> >> >> > > > > -- > Lukas Renggli > www.lukas-renggli.ch >

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[Pharo-project] Fwd: about OPAX
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

Hi doru could you take 15 min and add comments to the OPAX classes? in XMLSupport. There is not a line of comments, so I know that this is your private code that got there but still. Stef

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Re: [Pharo-project] ISBN - barecode reader?
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

On Oct 31, 2010, at 5:59 PM, laurent laffont wrote: > On Sun, Oct 31, 2010 at 5:31 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Thanks > > In fact after the remarks of denis I think that the most important aspect for me is how to query amazon web services :) > > > It's not the most intuitive web service but I've used it before. I will try from Pharo. It would be gorgeous :) > You can have a look at: > http://www.morganney.com/blog/API/AWS-Product-Advertising-API-Requires-a-Si… > http://www.morganney.com/blog/API/Amazon-Web-Services-with-PHP-and-SimpleXM… > > Cheers, > > Laurent > > > > Stef > > On Oct 31, 2010, at 5:22 PM, laurent laffont wrote: > > > > > On Sun, Oct 31, 2010 at 4:58 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > > > > On Oct 31, 2010, at 4:29 PM, Denis Kudriashov wrote: > > > > > Why you need some library? > > > > I would like to see if I can use the webcam of my computer to scan isbn and get data for my comix. > > > > > > A solution seems to capture the image and then use zbar lib http://zbar.sourceforge.net/ > > > > Laurent > > > > > > > > Stef > > > > > With my experance barcode reader work like usual keyboard. When you scan barcode with device it chars input to current focused view like as you typed it from keyboard. > > > > > > 2010/10/31 stephane ducasse <stephane.ducasse(a)free.fr> > > > barecode > > > > > > > > > > > >

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Re: [Pharo-project] ISBN - barecode reader?
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

Thanks In fact after the remarks of denis I think that the most important aspect for me is how to query amazon web services :) Stef On Oct 31, 2010, at 5:22 PM, laurent laffont wrote: > > On Sun, Oct 31, 2010 at 4:58 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > > On Oct 31, 2010, at 4:29 PM, Denis Kudriashov wrote: > > > Why you need some library? > > I would like to see if I can use the webcam of my computer to scan isbn and get data for my comix. > > > A solution seems to capture the image and then use zbar lib http://zbar.sourceforge.net/ > > Laurent > > > > Stef > > > With my experance barcode reader work like usual keyboard. When you scan barcode with device it chars input to current focused view like as you typed it from keyboard. > > > > 2010/10/31 stephane ducasse <stephane.ducasse(a)free.fr> > > barecode > > > > >

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[Pharo-project] Issues Tagged 1.2 on the BugTracker
by Marcus Denker Oct. 31, 2010

Oct. 31, 2010

37 out of 387: http://code.google.com/p/pharo/issues/list?cursor=2858 ... not all are showstoppers. Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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[Pharo-project] [update 1.2] #12225
by Marcus Denker Oct. 31, 2010

Oct. 31, 2010

12225 ----- Issue 3190: Move Utilities to Deprecated Package. Add Preferences class for backward compatibility Issue 3144: updateStreamer should be verbose when it do explicitly a update -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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Oct. 31, 2010

On Oct 31, 2010, at 4:29 PM, Denis Kudriashov wrote: > Why you need some library? I would like to see if I can use the webcam of my computer to scan isbn and get data for my comix. Stef > With my experance barcode reader work like usual keyboard. When you scan barcode with device it chars input to current focused view like as you typed it from keyboard. > > 2010/10/31 stephane ducasse <stephane.ducasse(a)free.fr> > barecode >

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[Pharo-project] InputEventFetcher starving all other processes
by Stefan Marr Oct. 31, 2010

Oct. 31, 2010

Hi: I am currently trying to get Pharo running smoothly on our RoarVM. However, there seem to be some changes in Pharo which lead to the image not making any progress. For my experiments, I am using the latest 1.2 core image. Do you know about any changes in Pharo, compared to Squeak 4.1, with respect to input event retrieval and perhaps the event processing? Thanks Stefan -- Stefan Marr Software Languages Lab Vrije Universiteit Brussel Pleinlaan 2 / B-1050 Brussels / Belgium http://soft.vub.ac.be/~smarr Phone: +32 2 629 2974 Fax: +32 2 629 3525

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[Pharo-project] ISBN - barecode reader?
by stephane ducasse Oct. 31, 2010

Oct. 31, 2010

Hi Does anybody know a good barecode reader libraries that I could invoke/wrap from pharo? Stef

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Oct. 31, 2010

In my really old code I wrote save "self new save" | doc | doc := self buildXML. doc printOn: self stream buildXML ^ self base asXML Base>>asXML "BDBase uniqueInstance asXML" | doc elem | doc := XMLDocument new. doc version: '1.0'. elem := XMLElement name: #Base attributes: (Dictionary new at: 'date' put: Date today asString; at: 'entriesNumber' put: self elements size asString; at: 'note' put: self note asString; yourself). doc addElement: elem. self elements do: [:each | elem addElement: each asXML]. ^ doc Elements>>asXML ^ XMLElement name: self class xmlName attributes: self attributes So how can I control that each elements ends with a linebreak/cr whatever? Stef

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[Pharo-project] [update 1.2] #12222 - 12224
by Marcus Denker Oct. 31, 2010

Oct. 31, 2010

12222 - 12224 ----- Issue 3183: WeakRegistryTest failing -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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