June 2014 - Pharo-users - lists.pharo.org

Re: [Pharo-users] functions keys

by Nicolai Hess

Yes, no function keys. 2014-07-01 0:06 GMT+02:00 Pablo R. Digonzelli <pdigonzelli(a)gmail.com>: > > After exploring the image I believe functions keys (F1,F2, etc ) are not > handling by KeyboardEvent class. > I think it is very common use that function keys in business applications. > Someone know if i am true about this topic? . > Or maybe someone handling functions keys in an application? > > TIA > > ------------------------------ > *Ing. Pablo Digonzelli* > Software Solutions > IP-Solutiones SRL > Metrotec SRL > 25 de Mayo 521 > Email: pdigonzelli(a)softsargentina.com > pdigonzelli(a)gmail.com > Cel: 5493815982714 > > >

June 30, 2014

Re: [Pharo-users] [Pharo-dev] functions keys

by Guillermo Polito

To handle function keys you should handle the keyup or keydown event. Then, the KeyboardEvent has a #key method to get the pressed key. Take a look at the Key class side methods to access well known keys. Guille On Tue, Jul 1, 2014 at 12:06 AM, Pablo R. Digonzelli <pdigonzelli(a)gmail.com> wrote: > > After exploring the image I believe functions keys (F1,F2, etc ) are not > handling by KeyboardEvent class. > I think it is very common use that function keys in business applications. > Someone know if i am true about this topic? . > Or maybe someone handling functions keys in an application? > > TIA > > ------------------------------ > *Ing. Pablo Digonzelli* > Software Solutions > IP-Solutiones SRL > Metrotec SRL > 25 de Mayo 521 > Email: pdigonzelli(a)softsargentina.com > pdigonzelli(a)gmail.com > Cel: 5493815982714 > > >

June 30, 2014

numeric pad

by Pablo R. Digonzelli

i actualized the vm for linux , but numeric pad of keyboard does not work. The keys are captured (exists KeboardEvent ) but the keys are not displaying in workspace for example. TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714

June 30, 2014

functions keys

by Pablo R. Digonzelli

After exploring the image I believe functions keys (F1,F2, etc ) are not handling by KeyboardEvent class. I think it is very common use that function keys in business applications. Someone know if i am true about this topic? . Or maybe someone handling functions keys in an application? TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714

June 30, 2014

Re: [Pharo-users] Modulecounts (and Smalltalkhub)

by Yuriy Tymchuk

I have data, and I am Yuriy (you can call me Uko, itâs easier to memorise ;) ). Cheers. Uko On 30 Jun 2014, at 20:53, phil(a)highoctane.be wrote: > Yuri had made the Smalldromeda visualization, so I guess he may have data. > > Phil > â

June 30, 2014

Re: [Pharo-users] Modulecounts (and Smalltalkhub)

by Esteban A. Maringolo

Do you believe everything in npm is at the level of express.js, socket.io, grunt or similar stuff? Their numbers are orders of magnitude bigger, but there is a lot of crap there too. Esteban A. Maringolo 2014-06-30 16:56 GMT-03:00 kilon alios <kilon.alios(a)gmail.com>: > Yeap I was about to reply the same thing that all my personal projects in > Smalltalkhub are from early W.I.P to garbage. Sad but true. > > > On Mon, Jun 30, 2014 at 9:36 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: >> >> >> On 30 Jun 2014, at 20:22, Esteban A. Maringolo <emaringolo(a)gmail.com> >> wrote: >> >> > http://modulecounts.com/ shows npm (node.js package manager) surpassed >> > Java MavenCentral count of modules, and it is the fastest growing >> > package manager. >> > >> > Though Pharo won't be up there anytime soon, the "1640 repositories" >> > reported by SmalltalkHub's explore page are more than the PHP Pear >> > count. And even when SH is not a module repository, it has a minimum >> > volume worth mentioning there. >> >> Yeah, having correct definitions is important to make comparisons. >> Anyway, an StHub repository often contains multiple packages. >> Quantity does not equal quality either. >> >> But it would be a good idea to advertise some statistics concerning StHub. >> >> > Is there a public API of SmalltalkHub from where to pull this historic >> > information? >> > >> > Esteban A. Maringolo >> >> >

June 30, 2014

Re: [Pharo-users] Modulecounts (and Smalltalkhub)

by kilon alios

Yeap I was about to reply the same thing that all my personal projects in Smalltalkhub are from early W.I.P to garbage. Sad but true. On Mon, Jun 30, 2014 at 9:36 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > On 30 Jun 2014, at 20:22, Esteban A. Maringolo <emaringolo(a)gmail.com> > wrote: > > > http://modulecounts.com/ shows npm (node.js package manager) surpassed > > Java MavenCentral count of modules, and it is the fastest growing > > package manager. > > > > Though Pharo won't be up there anytime soon, the "1640 repositories" > > reported by SmalltalkHub's explore page are more than the PHP Pear > > count. And even when SH is not a module repository, it has a minimum > > volume worth mentioning there. > > Yeah, having correct definitions is important to make comparisons. > Anyway, an StHub repository often contains multiple packages. > Quantity does not equal quality either. > > But it would be a good idea to advertise some statistics concerning StHub. > > > Is there a public API of SmalltalkHub from where to pull this historic > > information? > > > > Esteban A. Maringolo > > >

June 30, 2014

Re: [Pharo-users] Modulecounts (and Smalltalkhub)

by phil＠highoctane.be

Yuri had made the Smalldromeda visualization, so I guess he may have data. Phil â

June 30, 2014

Re: [Pharo-users] Modulecounts (and Smalltalkhub)

by Sven Van Caekenberghe

On 30 Jun 2014, at 20:22, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: > http://modulecounts.com/ shows npm (node.js package manager) surpassed > Java MavenCentral count of modules, and it is the fastest growing > package manager. > > Though Pharo won't be up there anytime soon, the "1640 repositories" > reported by SmalltalkHub's explore page are more than the PHP Pear > count. And even when SH is not a module repository, it has a minimum > volume worth mentioning there. Yeah, having correct definitions is important to make comparisons. Anyway, an StHub repository often contains multiple packages. Quantity does not equal quality either. But it would be a good idea to advertise some statistics concerning StHub. > Is there a public API of SmalltalkHub from where to pull this historic > information? > > Esteban A. Maringolo

June 30, 2014

Modulecounts (and Smalltalkhub)

by Esteban A. Maringolo

http://modulecounts.com/ shows npm (node.js package manager) surpassed Java MavenCentral count of modules, and it is the fastest growing package manager. Though Pharo won't be up there anytime soon, the "1640 repositories" reported by SmalltalkHub's explore page are more than the PHP Pear count. And even when SH is not a module repository, it has a minimum volume worth mentioning there. Is there a public API of SmalltalkHub from where to pull this historic information? Esteban A. Maringolo

June 30, 2014

Re: [Pharo-users] caturing key pressed

by Johan Fabry

Sorry, itâs been too long since I have been deep enough in that topic to be able to help you further. On Jun 30, 2014, at 12:56 PM, Pablo R. Digonzelli <pdigonzelli(a)gmail.com> wrote: > How can I know the widget has focus ? TIA > > > Ing. Pablo Digonzelli > Software Solutions > IP-Solutiones SRL > Metrotec SRL > 25 de Mayo 521 > Email: pdigonzelli(a)softsargentina.com > pdigonzelli(a)gmail.com > Cel: 5493815982714 > > ----- Mensaje original ----- > De: "Johan Fabry" <jfabry(a)dcc.uchile.cl> > Para: "Pharo is welcome" <pharo-users(a)lists.pharo.org> > Enviados: Lunes, 30 de Junio 2014 13:42:26 > Asunto: Re: [Pharo-users] caturing key pressed > > > I donât think there is a built-in way to do that. What you might do is register to keyboard events when one of these models gets the keyboard focus, and unregister when it loses focus. But I cannot give you any code for that, sorry. > > On Jun 30, 2014, at 11:32 AM, Pablo R. Digonzelli <pdigonzelli(a)gmail.com> wrote: > >> Hi all , I need to capture the key pressed in a Spec TextModel and ListModel. Can someone give orientation? >> >> TIA >> >> Ing. Pablo Digonzelli >> Software Solutions >> IP-Solutiones SRL >> Metrotec SRL >> 25 de Mayo 521 >> Email: pdigonzelli(a)softsargentina.com >> pdigonzelli(a)gmail.com >> Cel: 5493815982714 >> > > > > ---> Save our in-boxes! http://emailcharter.org <--- > > Johan Fabry - http://pleiad.cl/~jfabry > PLEIAD lab - Computer Science Department (DCC) - University of Chile > > > > ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

June 30, 2014

Re: [Pharo-users] caturing key pressed

by Pablo R. Digonzelli

How can I know the widget has focus ? TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714 ----- Mensaje original ----- De: "Johan Fabry" <jfabry(a)dcc.uchile.cl> Para: "Pharo is welcome" <pharo-users(a)lists.pharo.org> Enviados: Lunes, 30 de Junio 2014 13:42:26 Asunto: Re: [Pharo-users] caturing key pressed I donât think there is a built-in way to do that. What you might do is register to keyboard events when one of these models gets the keyboard focus, and unregister when it loses focus. But I cannot give you any code for that, sorry. On Jun 30, 2014, at 11:32 AM, Pablo R. Digonzelli <pdigonzelli(a)gmail.com> wrote: > Hi all , I need to capture the key pressed in a Spec TextModel and ListModel. Can someone give orientation? > > TIA > > Ing. Pablo Digonzelli > Software Solutions > IP-Solutiones SRL > Metrotec SRL > 25 de Mayo 521 > Email: pdigonzelli(a)softsargentina.com > pdigonzelli(a)gmail.com > Cel: 5493815982714 > ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

June 30, 2014

Re: [Pharo-users] caturing key pressed

by Johan Fabry

I donât think there is a built-in way to do that. What you might do is register to keyboard events when one of these models gets the keyboard focus, and unregister when it loses focus. But I cannot give you any code for that, sorry. On Jun 30, 2014, at 11:32 AM, Pablo R. Digonzelli <pdigonzelli(a)gmail.com> wrote: > Hi all , I need to capture the key pressed in a Spec TextModel and ListModel. Can someone give orientation? > > TIA > > Ing. Pablo Digonzelli > Software Solutions > IP-Solutiones SRL > Metrotec SRL > 25 de Mayo 521 > Email: pdigonzelli(a)softsargentina.com > pdigonzelli(a)gmail.com > Cel: 5493815982714 > ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

June 30, 2014

caturing key pressed

by Pablo R. Digonzelli

Hi all , I need to capture the key pressed in a Spec TextModel and ListModel. Can someone give orientation? TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714

June 30, 2014

Re: [Pharo-users] image crash

by Pablo R. Digonzelli

In my case, I made a mistake wich crashes the image. After Phil explainme how to use my changes file on a new image i recover my work i think very efficiently. Thanks for the help Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714 ----- Mensaje original ----- De: "Esteban Lorenzano" <estebanlm(a)gmail.com> Para: "Any question about pharo is welcome" <pharo-users(a)lists.pharo.org> Enviados: Lunes, 30 de Junio 2014 5:21:34 Asunto: Re: [Pharo-users] image crash On 29 Jun 2014, at 10:36, stepharo < stepharo(a)free.fr > wrote: Phil there is no magic. We cannot clone people and we should pay people also and our backlog is quite large. Stef On 28/6/14 18:10, phil(a)highoctane.be wrote: <blockquote> Guille once sent me an image that he used to help me solve a dead/frozen image. But it was no 3.0 It is frustrating that Oz is not more available as I got locked out of an image this week due to a socket primitive failing and making the image closing after opening. One lesson is that images are not stable things. And an integration script helping rebuild it all from scratch is key. Thanks to Sebastian Sastre to have helped me among that path! Now, images should not freeze. And failing primitives on sockets should not lock one out. I'll have a look at the VM to see why this one happens. It was in the FTP Monticello code. </blockquote> yes, but this is not a VM problem but the image. is about how the image react to a socket presence when restarting. <blockquote> <blockquote> Also the fact that one cannot interrupt the VM in bytecode under specifc conditions - no back jumps - makes me very nervous. </blockquote> why this is like that in many smalltalk VM if I'M correct. </blockquote> AFAIK, is a problem on any VM not just smalltalk ones (but probably for us is more important than others). <blockquote> <blockquote> For commercial work these things are important. Phil Le 28 juin 2014 16:25, "Pablo R. Digonzelli" < pdigonzelli(a)gmail.com > a Ã©crit : <blockquote> >From where can i download oz for pharo 3? TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714 De: "Pablo R. Digonzelli" < pdigonzelli(a)gmail.com > Para: "Any question about pharo is welcome" < pharo-users(a)lists.pharo.org > Enviados: SÃ¡bado, 28 de Junio 2014 11:03:32 Asunto: Re: [Pharo-users] image crash I want to know if there is a way to apply a .changes file of my old image to a fresh one? TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714 De: "Pablo R. Digonzelli" < pdigonzelli(a)gmail.com > Para: "Any question about pharo is welcome" < pharo-users(a)lists.pharo.org > Enviados: SÃ¡bado, 28 de Junio 2014 10:42:31 Asunto: [Pharo-users] image crash My image is crashing an close suddendly. In Nautilus right-click menu does not work. In order to start on a new image i need to fileout my classes by code not by menu. My question is how can i fileout a class from the workspace ? TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714 </blockquote> </blockquote> </blockquote>

June 30, 2014

Supporting deep into pharo

by stepharo

Hi! Maybe one of Deep into Pharoâs reader can write a review on: http://www.amazon.com/Deep-into-Pharo-Alexandre-Bergel/dp/3952334162 This will help everybody by promoting our favorite language... Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.

June 30, 2014

Re: [Pharo-users] image crash

by Esteban Lorenzano

On 29 Jun 2014, at 10:36, stepharo <stepharo(a)free.fr> wrote: > Phil > > there is no magic. > We cannot clone people and we should pay people also and our backlog is quite large. > > Stef > > > On 28/6/14 18:10, phil(a)highoctane.be wrote: >> Guille once sent me an image that he used to help me solve a dead/frozen image. >> >> But it was no 3.0 >> >> It is frustrating that Oz is not more available as I got locked out of an image this week due to a socket primitive failing and making the image closing after opening. >> >> One lesson is that images are not stable things. And an integration script helping rebuild it all from scratch is key. >> >> Thanks to Sebastian Sastre to have helped me among that path! >> >> Now, images should not freeze. >> And failing primitives on sockets should not lock one out. >> >> I'll have a look at the VM to see why this one happens. It was in the FTP Monticello code. >> yes, but this is not a VM problem but the image. is about how the image react to a socket presence when restarting. >> Also the fact that one cannot interrupt the VM in bytecode under specifc conditions - no back jumps - makes me very nervous. >> > > why this is like that in many smalltalk VM if I'M correct. AFAIK, is a problem on any VM not just smalltalk ones (but probably for us is more important than others). > >> For commercial work these things are important. >> >> Phil >> >> >> >> >> >> Le 28 juin 2014 16:25, "Pablo R. Digonzelli" <pdigonzelli(a)gmail.com> a Ã©crit : >> From where can i download oz for pharo 3? >> >> TIA >> >> Ing. Pablo Digonzelli >> Software Solutions >> IP-Solutiones SRL >> Metrotec SRL >> 25 de Mayo 521 >> Email: pdigonzelli(a)softsargentina.com >> pdigonzelli(a)gmail.com >> Cel: 5493815982714 >> >> De: "Pablo R. Digonzelli" <pdigonzelli(a)gmail.com> >> Para: "Any question about pharo is welcome" <pharo-users(a)lists.pharo.org> >> Enviados: SÃ¡bado, 28 de Junio 2014 11:03:32 >> Asunto: Re: [Pharo-users] image crash >> >> I want to know if there is a way to apply a .changes file of my old image to a fresh one? >> >> TIA >> >> >> Ing. Pablo Digonzelli >> Software Solutions >> IP-Solutiones SRL >> Metrotec SRL >> 25 de Mayo 521 >> Email: pdigonzelli(a)softsargentina.com >> pdigonzelli(a)gmail.com >> Cel: 5493815982714 >> >> De: "Pablo R. Digonzelli" <pdigonzelli(a)gmail.com> >> Para: "Any question about pharo is welcome" <pharo-users(a)lists.pharo.org> >> Enviados: SÃ¡bado, 28 de Junio 2014 10:42:31 >> Asunto: [Pharo-users] image crash >> >> My image is crashing an close suddendly. In Nautilus right-click menu does not work. >> In order to start on a new image i need to fileout my classes by code not by menu. >> My question is how can i fileout a class from the workspace ? >> >> >> TIA >> >> Ing. Pablo Digonzelli >> Software Solutions >> IP-Solutiones SRL >> Metrotec SRL >> 25 de Mayo 521 >> Email: pdigonzelli(a)softsargentina.com >> pdigonzelli(a)gmail.com >> Cel: 5493815982714 >> >> >> >

June 30, 2014

[New] academic partner program

by stepharo

Dear Friends The Pharo consortium http://consortium.pharo.org is launching a new program in direction to academic partners: teachers, Universities and research institutes. We realized that the advantages/duties to be an academic member were unclear. We really want to build a strong community. http://files.pharo.org/consortium/Membership%20Agreement%20for%20Academic%2… Here are the key facts extracted from the documentation. Here are the main advantages as an academic partner: - Direct access to Pharo core developers via an automatic subscription to a specific mailing list. - Access to Pharo documents and courses. - Its logo posted on the Pharo Website Academic pages. - The possibility to propose and participate in actions. Here are the main duties (which you are already doing) - Put a link to Pharo Consortium Website from its institutional website. - When using Pharo to teach, create web pages with document courses related to Pharo. - Provide Inria with an annual report of at most half a page of its actions to promote and sustain Pharo. As member of the Pharo Consortium, the Academic Partner shall make its best efforts to: - Give courses on Pharo or related topics to its students - Participate to the development of open source software libraries in Pharo - Participate to selected Pharo mailing lists : pharo-dev(a)lists.pharo.org and/or pharo-users(a)lists.pharo.org - Participate in the authoring of open-source books on Pharo and related topics. So we really hope that you will register and help us making Pharo grow and be a really cool and friendly ecosystem. The Pharo Board.

June 30, 2014

Re: [Pharo-users] Athens and ellipse drawing

by Nicolai Hess

Igor, what do you think. Is it possible or should it be possible to draw a non-uniform scaled path with an unscaled (stroke-)paint? Nicolai 2014-06-25 21:35 GMT+02:00 Juraj Kubelka <juraj.kubelka(a)gmail.com>: > I have understood it is not possible. > > Cheers, > Juraj > > > > -- > View this message in context: > http://forum.world.st/Athens-and-ellipse-drawing-tp4754256p4764784.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

June 30, 2014

Re: [Pharo-users] doubleClick

by Pablo R. Digonzelli

Hi , I need to capture en key event over TextModel . I need know if the user pressed F3 or another key. I need orientation about it. I will thank for any help. Thanks Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714 ----- Mensaje original ----- De: "Pablo R. Digonzelli" <pdigonzelli(a)gmail.com> Para: "Any question about pharo is welcome" <pharo-users(a)lists.pharo.org> Enviados: Domingo, 29 de Junio 2014 19:39:17 Asunto: [Pharo-users] doubleClick I need to implement double click on TextModel. I need some orientation for anyone who makes something like this. TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714

June 30, 2014

doubleClick

by Pablo R. Digonzelli

I need to implement double click on TextModel. I need some orientation for anyone who makes something like this. TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714

June 29, 2014

Re: [Pharo-users] Reading the last n lines from a file without using lots of memory

by Denis Kudriashov

I look now at streams image. I actually not use XStreams but look at it some times ago. So I solve your task with such code: s:= FileLocator changes reading . reversed := [ :out | s -= 1. [s position=0] whileFalse: [ out put: s peek. s -- 1 ] ] reading. lines := (reversed ending: Character cr asInteger) slicing. lastLines := (lines limiting: 50) collect: [ :eachReversedLine | (eachReversedLine rest reversed reading encoding: #utf8) rest]. lastLines reversed And now I have questions to stream maintainers: 1) Can we add #reversing transformation? (maybe it already exists?) 2) Why "slicing collecting" is not work and "slicing collect:" should be used? Last don't produce stream but it process full source stream with collect block. I know it is possible to build another reading block for "slicing collecting". But what is reason that it's not works out of the box? (It is not clean to me after reading google docs) Best regards, Denis 2014-06-29 19:26 GMT+04:00 phil(a)highoctane.be <phil(a)highoctane.be>: > > Le 29 juin 2014 16:42, "Sven Van Caekenberghe" <sven(a)stfx.eu> a Ã©crit : > > > > > > > On 29 Jun 2014, at 16:18, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > > > > > It should be trivial with XStream > > > > I would love to see that code. > > > > We have Xtreams building happily > > > > https://ci.inria.fr/pharo-contribution/job/Xtreams/ > > > > it is waiting in the trenches, waiting to be used... > > > > Xtreams looks like a very powerful capability. > > Now how would one use it for this case? > > > > 2014-06-27 21:45 GMT+04:00 Sven Van Caekenberghe <sven(a)stfx.eu>: > > > > http://stackoverflow.com/questions/10164597/how-would-you-implement-tail-ef… > > > http://git.savannah.gnu.org/cgit/coreutils.git/tree/src/tail.c > > > > > > I would work with the growing buffer read backwards. > > > It would be great fun doing that in Pharo. > > > > > > On 27 Jun 2014, at 18:50, phil(a)highoctane.be wrote: > > > > > > > Thanks. > > > > > > > > But this would give me the 200 last chars. I am interested in the > 200 last lines. > > > > > > > > Now, I did this: > > > > > > > > command := 'tac ', file fullName, ' | head -200'. > > > > ^ (PipeableOSProcess command: command) output. > > > > > > > > which did the trick but isn't portable at all (Linux here). > > > > > > > > I had a look at RemoteString as well. > > > > > > > > Phil > > > > > > > > > > > > On Fri, Jun 27, 2014 at 6:21 PM, Guillermo Polito < > guillermopolito(a)gmail.com> wrote: > > > > If you have a MultiByteFileStream you can do > > > > > > > > stream position: stream size - 200. > > > > stream next: 200. > > > > > > > > Have a look at RemoteString, which is the class used to read the > source from the source and changes files (without loading all of them into > memory) > > > > > > > > > > > > On Fri, Jun 27, 2014 at 6:15 PM, phil(a)highoctane.be < > phil(a)highoctane.be> wrote: > > > > I wonder how you guys would read the last n lines from a file in > Pharo without reading through the whole thing. > > > > > > > > Is there code doing just that somewhere? > > > > > > > > The code I have is a shell script doing a 'tac file | tail -200 > > /temp/something' > > > > > > > > I can always do that through OSProcess but wondered if there was > something available. > > > > > > > > Reading through with a 200-entries FIFO circular buffer seems a bit > silly to do. > > > > > > > > TIA > > > > Phil > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >

June 29, 2014

Re: [Pharo-users] Reading the last n lines from a file without using lots of memory

by phil＠highoctane.be

Le 29 juin 2014 16:42, "Sven Van Caekenberghe" <sven(a)stfx.eu> a Ã©crit : > > > On 29 Jun 2014, at 16:18, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > > > It should be trivial with XStream > > I would love to see that code. > > We have Xtreams building happily > > https://ci.inria.fr/pharo-contribution/job/Xtreams/ > > it is waiting in the trenches, waiting to be used... > Xtreams looks like a very powerful capability. Now how would one use it for this case? > > 2014-06-27 21:45 GMT+04:00 Sven Van Caekenberghe <sven(a)stfx.eu>: > > http://stackoverflow.com/questions/10164597/how-would-you-implement-tail-ef… > > http://git.savannah.gnu.org/cgit/coreutils.git/tree/src/tail.c > > > > I would work with the growing buffer read backwards. > > It would be great fun doing that in Pharo. > > > > On 27 Jun 2014, at 18:50, phil(a)highoctane.be wrote: > > > > > Thanks. > > > > > > But this would give me the 200 last chars. I am interested in the 200 last lines. > > > > > > Now, I did this: > > > > > > command := 'tac ', file fullName, ' | head -200'. > > > ^ (PipeableOSProcess command: command) output. > > > > > > which did the trick but isn't portable at all (Linux here). > > > > > > I had a look at RemoteString as well. > > > > > > Phil > > > > > > > > > On Fri, Jun 27, 2014 at 6:21 PM, Guillermo Polito < guillermopolito(a)gmail.com> wrote: > > > If you have a MultiByteFileStream you can do > > > > > > stream position: stream size - 200. > > > stream next: 200. > > > > > > Have a look at RemoteString, which is the class used to read the source from the source and changes files (without loading all of them into memory) > > > > > > > > > On Fri, Jun 27, 2014 at 6:15 PM, phil(a)highoctane.be < phil(a)highoctane.be> wrote: > > > I wonder how you guys would read the last n lines from a file in Pharo without reading through the whole thing. > > > > > > Is there code doing just that somewhere? > > > > > > The code I have is a shell script doing a 'tac file | tail -200 > /temp/something' > > > > > > I can always do that through OSProcess but wondered if there was something available. > > > > > > Reading through with a 200-entries FIFO circular buffer seems a bit silly to do. > > > > > > TIA > > > Phil > > > > > > > > > > > > > > > > > > > > >

June 29, 2014

Re: [Pharo-users] Reading the last n lines from a file without using lots of memory

by Sven Van Caekenberghe

On 29 Jun 2014, at 16:18, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > It should be trivial with XStream I would love to see that code. We have Xtreams building happily https://ci.inria.fr/pharo-contribution/job/Xtreams/ it is waiting in the trenches, waiting to be used... > 2014-06-27 21:45 GMT+04:00 Sven Van Caekenberghe <sven(a)stfx.eu>: > http://stackoverflow.com/questions/10164597/how-would-you-implement-tail-ef… > http://git.savannah.gnu.org/cgit/coreutils.git/tree/src/tail.c > > I would work with the growing buffer read backwards. > It would be great fun doing that in Pharo. > > On 27 Jun 2014, at 18:50, phil(a)highoctane.be wrote: > > > Thanks. > > > > But this would give me the 200 last chars. I am interested in the 200 last lines. > > > > Now, I did this: > > > > command := 'tac ', file fullName, ' | head -200'. > > ^ (PipeableOSProcess command: command) output. > > > > which did the trick but isn't portable at all (Linux here). > > > > I had a look at RemoteString as well. > > > > Phil > > > > > > On Fri, Jun 27, 2014 at 6:21 PM, Guillermo Polito <guillermopolito(a)gmail.com> wrote: > > If you have a MultiByteFileStream you can do > > > > stream position: stream size - 200. > > stream next: 200. > > > > Have a look at RemoteString, which is the class used to read the source from the source and changes files (without loading all of them into memory) > > > > > > On Fri, Jun 27, 2014 at 6:15 PM, phil(a)highoctane.be <phil(a)highoctane.be> wrote: > > I wonder how you guys would read the last n lines from a file in Pharo without reading through the whole thing. > > > > Is there code doing just that somewhere? > > > > The code I have is a shell script doing a 'tac file | tail -200 > /temp/something' > > > > I can always do that through OSProcess but wondered if there was something available. > > > > Reading through with a 200-entries FIFO circular buffer seems a bit silly to do. > > > > TIA > > Phil > > > > > > > > > > >

June 29, 2014

Re: [Pharo-users] Reading the last n lines from a file without using lots of memory

by Denis Kudriashov

It should be trivial with XStream 2014-06-27 21:45 GMT+04:00 Sven Van Caekenberghe <sven(a)stfx.eu>: > > http://stackoverflow.com/questions/10164597/how-would-you-implement-tail-ef… > http://git.savannah.gnu.org/cgit/coreutils.git/tree/src/tail.c > > I would work with the growing buffer read backwards. > It would be great fun doing that in Pharo. > > On 27 Jun 2014, at 18:50, phil(a)highoctane.be wrote: > > > Thanks. > > > > But this would give me the 200 last chars. I am interested in the 200 > last lines. > > > > Now, I did this: > > > > command := 'tac ', file fullName, ' | head -200'. > > ^ (PipeableOSProcess command: command) output. > > > > which did the trick but isn't portable at all (Linux here). > > > > I had a look at RemoteString as well. > > > > Phil > > > > > > On Fri, Jun 27, 2014 at 6:21 PM, Guillermo Polito < > guillermopolito(a)gmail.com> wrote: > > If you have a MultiByteFileStream you can do > > > > stream position: stream size - 200. > > stream next: 200. > > > > Have a look at RemoteString, which is the class used to read the source > from the source and changes files (without loading all of them into memory) > > > > > > On Fri, Jun 27, 2014 at 6:15 PM, phil(a)highoctane.be <phil(a)highoctane.be> > wrote: > > I wonder how you guys would read the last n lines from a file in Pharo > without reading through the whole thing. > > > > Is there code doing just that somewhere? > > > > The code I have is a shell script doing a 'tac file | tail -200 > > /temp/something' > > > > I can always do that through OSProcess but wondered if there was > something available. > > > > Reading through with a 200-entries FIFO circular buffer seems a bit > silly to do. > > > > TIA > > Phil > > > > > > > > > > >

June 29, 2014