April 2017 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] Problem with FileSystem in WIndows

by Alistair Grant

On Sat, Apr 29, 2017 at 10:15:15PM -0300, Casimiro de Almeida Barreto wrote: > Good night all. > > I?ve had trouble in windows concerning FileSystem. > > ((FileSystem disk root) / ?C:\temp\e8720bb4-b90a-0d00-9b1f-008709e5552b.txt?) > delete > > Fails as if the file didn?t exist. Message: > > FileDoesNotExist: Path / ?C:\temp\e8720bb4-b90a-0d00-9b1f-008709e5552b.txt? > > And I wonder what?s wrong. Because it works in linux and MacOS. > > Trasncript show: ((FileSYstem disk root) / ?C:\temp\ > e8720bb4-b90a-0d00-9b1f-008709e5552b.txt?) > > Returns: > > File @ C:\temp\e8720bb4-b90a-0d00-9b1f-008709e5552b.txt\ > > And I wonder where the last \ came from and if is it that is messing all and > how to fix things. This is partially related to the problem I reported in "FileReference / and Parent" in that the filename isn't being parsed properly. See: http://forum.world.st/FileReference-and-parent-td4941066.html Note that the patch I suggest in the email thread doesn't solve the problem either. The trailing slash in the example above is because the path isn't being parsed, the windows file store thinks that there is only a single segment, which means the drive, so must be a directory. As a workaround, if you have a complete path string, try using #asFileReference, e.g.: 'C:\temp\e8720bb4-b90a-0d00-9b1f-008709e5552b.txt' asFileReference exists Cheers, Alistair

April 30, 2017

RES: RES: RES: Problem with FileSystem in WIndows

by Casimiro de Almeida Barreto

Thanks for the tip Sven. -----Mensagem original----- De: Pharo-dev [mailto:pharo-dev-bounces@lists.pharo.org] Em nome de Sven Van Caekenberghe Enviada em: domingo, 30 de abril de 2017 17:14 Para: Pharo Development List <pharo-dev(a)lists.pharo.org> Assunto: Re: [Pharo-dev] RES: RES: Problem with FileSystem in WIndows I have a feeling that you are working on the wrong level, consider: file := FileReference newTempFilePrefix: 'data' suffix: '.txt'. file writeStreamDo: [ :out | out << 'Casimiro de Almeida Barreto' ]. file contents. file ensureDelete. file exists. The #newTempFilePrefix:suffix: method uses 'FileLocator temp' as target directory, which will be different on different platforms. The trick is to use these FileLocator locations, try 'FileLocator supportedOrigins', to have an abstract, cross platform starting point (except for the Windows drives, obviously). Then you construct directories using messages. Remember, the whole image, file browser, file dialogs, they all work cross platform, so you can do so too. --- Este email foi escaneado pelo Avast antivÃrus. https://www.avast.com/antivirus

April 30, 2017

Re: [Pharo-dev] Smalltalk Internet Browser

by askoh

Yes. It is a novel way of remote desktop. Perhaps Craig can tell if it can do the following. I want to go to a web page, select a body of text and have Smalltalk code analyze the text in some way and return the answer in the browser or in the Smalltalk app or file output. There should be two-way communication between app and browser. I would like to do live debugging too. Aik-Siong Koh Hi Askoh, are you also aware of Snowglobe https://thiscontext.com/2016/10/31/app-streaming-with-snowglobe/ ? This allows one to use a standard Smalltalk image running on the native Cog VM to render in a web browser. _,,,^..^,,,_ (phone) -- View this message in context: http://forum.world.st/Smalltalk-Internet-Browser-tp4944879p4944998.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

April 30, 2017

Re: [Pharo-dev] RES: RES: Problem with FileSystem in WIndows

by Sven Van Caekenberghe

I have a feeling that you are working on the wrong level, consider: file := FileReference newTempFilePrefix: 'data' suffix: '.txt'. file writeStreamDo: [ :out | out << 'Casimiro de Almeida Barreto' ]. file contents. file ensureDelete. file exists. The #newTempFilePrefix:suffix: method uses 'FileLocator temp' as target directory, which will be different on different platforms. The trick is to use these FileLocator locations, try 'FileLocator supportedOrigins', to have an abstract, cross platform starting point (except for the Windows drives, obviously). Then you construct directories using messages. Remember, the whole image, file browser, file dialogs, they all work cross platform, so you can do so too. > On 30 Apr 2017, at 21:37, Casimiro de Almeida Barreto <casimiro.barreto(a)gmail.com> wrote: > >> Clear example follows. By the way â/â and â\â are not interchangeableâ¦ in Windows FileSystem requires â\â to work properly: >> >> >> >> | fn l fileStream | >> >> fn := 'temp\',UUIDGenerator next asString,'.txt'. >> >> Transcript clear; show: fn; cr. >> >> fileStream := ((FileSystem root) / fn) writeStream. >> >> fileStream >> >> ifNil: [ Transcript show: 'Fail to create writeStream'; cr ] >> >> ifNotNil: [ Transcript show: 'Opened' ]. >> >> fileStream nextPutAll: 'Casimiro de Almeida Barreto'. >> >> fileStream close. >> >> fileStream := ((FileSystem root) / fn) readStream. >> >> l := fileStream upToEnd. >> >> Transcript show: l; cr. >> >> ((FileSystem root) / fn) delete. >> > > This example creates a file named c:\temp\380cafd3-c80a-0d00-b117-0a8a049bf78d.txt and I was able to write âCasimiro de Almeida Barretoâ to it. And then open the file in the read mode and read âCasimiro de Almeida Barretoâ from it. Butâ¦ ((FileSystem root) / fn) delete returns a: âFileDoesNotExist: Path /âtemp\380cafd3-c80a-0d00-b117-0a8a049bf78d.txtâ. Apparently the problem is at WindowsStore(DiskStore) delete: > > <image001.jpg> > > Livre de vÃrus. www.avast.com.

April 30, 2017

Re: [Pharo-dev] Smalltalk Internet Browser

by Eliot Miranda

Hi Askoh, are you also aware of Snowglobe https://thiscontext.com/2016/10/31/app-streaming-with-snowglobe/ ? This allows one to use a standard Smalltalk image running on the native Cog VM to render in a web browser. _,,,^..^,,,_ (phone) > On Apr 28, 2017, at 7:11 PM, askoh <askoh(a)askoh.com> wrote: > > Being connected to the internet is going to be a necessity for any piece of > software in the immediate future. So every Smalltalk development environment > or application should have that capability as default. To push that envelop, > every image should have a Smalltalk native Internet Browser. By developing > that Internet Browser, we are demonstrating the power of Smalltalk. There is > no reason why Smalltalk cannot be as intimate to the World Wide Web as > Javascript. We can have the IDE in Smalltalk, Internet Browser in Smalltalk > and a WWW language in Smalltalk. As is uniquely Smalltalk, every bit of code > is visible, modifiable and debuggable. This supped up environment will grow > and grow to be a full OS. > > How can we gather the relevant Smalltalk code and necessary plugins to make > an Internet Browser? I remember Croquet had internet browser and video > player. What is missing? > > All the best, > Aik-Siong Koh > > > > -- > View this message in context: http://forum.world.st/Smalltalk-Internet-Browser-tp4944879.html > Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com. >

April 30, 2017

Re: [Pharo-dev] Smalltalk Internet Browser

by askoh

Thanks everyone for your input. I am aware of Amber - worthy effort. I am more interested in Smalltalk IDE or app having a Browser. I am thinking more of Smalltalk calling Chromium Embedded Framework (CEF) via APIs. The browser is in direct two-way communication with the Smalltalk app. The complete API may be huge, but we can start with 1, 10, 100 APIs and still do useful stuff. Smalltalk missed out to Java because it did not embrace the internet. Let's not continue to miss out. Someone mentioned Pharo should be good with data analysis. Well, I think a lot, if not all, that data is going to come from the internet. Hence an embedded browser is a great helper. Python rode on C/C++. Ruby rode on Rails and on Web. What can Smalltalk ride on? VisualWorks Appex seems to be an attempt to ride on Javascript. VW Appex manages both Smalltalk and Javascript in the same image. Javascript edits in Appex are reflected to the Internet Browser when it is refreshed. Most interestingly, Javascript edits in the Internet Browser Dev Tools are picked up by Appex and put into the image. What do you think of this strategy? Aik-Siong Koh nacho wrote > Did you tried Amber? > Is Smalltalk on the browser. > I believe that what you mean is embedding the V8 engine into Pharo. But > man, thats a huge work. Really... > my 2c. > > > *Lic. Ignacio Sniechowski, MBA* > *Prosavic SRL* > â* (5411) 4542-6712* > ð±* (54911) 6749-4721* > > > > > > > > > > > > > > > > > > > > > On Sat, Apr 29, 2017 at 7:53 PM, askoh [via Smalltalk] < > ml+s1294792n4944919h82@.nabble >> wrote: > >> We means all communities of Smalltalk environments. Pharo is of course >> the >> biggest, hence my post here first. I am verifying the soundness of the >> idea >> of SIB and then do a student project on it. I am from the VisualWork >> community. I look forward to porting freeCAD: 3D CAD with Motion >> Simulation >> to Pharo when it has 64bit version on Windows. >> >> Aik-Siong Koh >> >> Denis Kudriashov wrote >> 2017-04-29 19:00 GMT+02:00 askoh <[hidden email] >> <http:///user/SendEmail.jtp?type=node&node=4944919&i=0>>: >> >> > We start out by embedding Chrome inside the IDE. Make them communicate >> > well. >> > We then port bit by bit to Smalltalk based on needs and priorities. >> > >> >> I am wondering, when you said "we" what you mean? Did you found team to >> work on such project? >> >> >> >> ------------------------------ >> If you reply to this email, your message will be added to the discussion >> below: >> http://forum.world.st/Smalltalk-Internet-Browser-tp4944879p4944919.html >> To start a new topic under Pharo Smalltalk Developers, email >> > ml+s1294792n1294837h40@.nabble >> To unsubscribe from Pharo Smalltalk Developers, click here >> <http://forum.world.st/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=1294837&code=MDgwMG5hY2hvQGdtYWlsLmNvbXwxMjk0ODM3fC0xOTAxMTExODEy> >> . >> NAML >> <http://forum.world.st/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> >> -- View this message in context: http://forum.world.st/Smalltalk-Internet-Browser-tp4944879p4944991.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

April 30, 2017

RES: RES: Problem with FileSystem in WIndows

by Casimiro de Almeida Barreto

Clear example follows. By the way â/â and â\â are not interchangeableâ¦ in Windows FileSystem requires â\â to work properly: | fn l fileStream | fn := 'temp\',UUIDGenerator next asString,'.txt'. Transcript clear; show: fn; cr. fileStream := ((FileSystem root) / fn) writeStream. fileStream ifNil: [ Transcript show: 'Fail to create writeStream'; cr ] ifNotNil: [ Transcript show: 'Opened' ]. fileStream nextPutAll: 'Casimiro de Almeida Barreto'. fileStream close. fileStream := ((FileSystem root) / fn) readStream. l := fileStream upToEnd. Transcript show: l; cr. ((FileSystem root) / fn) delete. This example creates a file named c:\temp\380cafd3-c80a-0d00-b117-0a8a049bf78d.txt and I was able to write âCasimiro de Almeida Barretoâ to it. And then open the file in the read mode and read âCasimiro de Almeida Barretoâ from it. Butâ¦ ((FileSystem root) / fn) delete returns a: âFileDoesNotExist: Path /âtemp\380cafd3-c80a-0d00-b117-0a8a049bf78d.txtâ. Apparently the problem is at WindowsStore(DiskStore) delete: --- Este email foi escaneado pelo Avast antivÃrus. https://www.avast.com/antivirus

April 30, 2017

Re: [Pharo-dev] First commit

by Juraj Kubelka

Hi, -- Juraj Kubelka > El 30-04-2017, a las 15:25, Evan Donahue <emdonahu(a)gmail.com> escribiÃ³: > > Hello, > > I have just tried to submit my first patch to the main Pharo inbox. I submitted a patch for issue > > https://pharo.fogbugz.com/f/cases/17848 > > because it basically amounted to changing an error message and seemed like a good place to start figuring out how the submission process works. > > I saved my slice to the Pharo60Inbox, but when I typed my commit message and hit save, I did not see any confirmation. How can I tell if my slice was submitted or not? I am not in front of my computer, but you can open the repository and search for the SLICE. Than you should set resolve in FogBugz. Juraj > > Thank you, > Evan

April 30, 2017

RES: RES: Problem with FileSystem in WIndows

by Casimiro de Almeida Barreto

> Indeed. > > Also, you should never have to write the platform test, an important idea of FileSystem is to prevent that. > Complete transparency is not possible because the concepts of file system in Windows and Unix are different. While in Unix you have a continuous tree, in Windows you have the concept of drive or 'disk unity' (C: D: E: ...) and disjunct trees. Also in Unix you can have complex file names that include almost all characters while in Unix some characters cannot be used (like : )... Not to mention that file properties in Unix and Windows are not exactly the same, links are not the same, so on and so forth. > Have you read the chapter on FileSystem from the Deep Into Pharo book ? > > Maybe some Windows users can help you better, but I don't recall others having trouble using FileSystem on Windows. Best regards, Casimiro Barreto --- Este email foi escaneado pelo Avast antivÃrus. https://www.avast.com/antivirus

April 30, 2017

First commit

by Evan Donahue

Hello, I have just tried to submit my first patch to the main Pharo inbox. I submitted a patch for issue https://pharo.fogbugz.com/f/cases/17848 because it basically amounted to changing an error message and seemed like a good place to start figuring out how the submission process works. I saved my slice to the Pharo60Inbox, but when I typed my commit message and hit save, I did not see any confirmation. How can I tell if my slice was submitted or not? Thank you, Evan

April 30, 2017