- Pharo-users - lists.pharo.org

Re: [Pharo-users] (no subject)

by stephan

On 14-09-17 14:25, Christophe Demarey wrote: > Let us know if everything is fine. Downloaded latest 7 64: Cannot open iceberg, libgit2 can not be found Stephan

Sept. 14, 2017

Re: [Pharo-users] (no subject)

by stephan

On 14-09-17 14:25, Christophe Demarey wrote: > I published an update of the Launcher yesterday fixing some issues to > run Pharo images from Linux. You can find latest-versions (0.2.13) here: > http://files.pharo.org/platform/launcher/ > It already propose to download Pharo 70 images. The VM is now downloaded > automatically if the adequate one is not available. > Let us know if everything is fine. - not downloading the sources; - sources now need to be next to the image; - when you upgrade the vm, you need to replace all those sources files - default now dark theme, and not easy to switch - icons only shown on hover (Ubuntu 16.10LTS) Stephan

Sept. 14, 2017

Re: [Pharo-users] (no subject)

by Christophe Demarey

Hi, I published an update of the Launcher yesterday fixing some issues to run Pharo images from Linux. You can find latest-versions (0.2.13) here: http://files.pharo.org/platform/launcher/ It already propose to download Pharo 70 images. The VM is now downloaded automatically if the adequate one is not available. Let us know if everything is fine. Regards, Christophe ----- Mail original ----- > De: "Vityou ." <zlee314(a)gmail.com> > Ã: pharo-users(a)lists.pharo.org > EnvoyÃ©: Dimanche 13 AoÃ»t 2017 10:31:06 > Objet: [Pharo-users] (no subject) > I recently discovered the pharo launcher. However, it only gives me options > to use outdated images, and I'm not sure about the vm. Is there any way to > change this?

Sept. 14, 2017

Re: [Pharo-users] Writing XML

by Henrik Sperre Johansen

Jimmie Houchin-5 wrote > I still do not know how to do this correctly. But I have something that > seems to work for the moment. > > Using #asUTF8Bytes > > f nextPutAll: (writer write contents asUTF8Bytes). > > Now the file is in UTF-8 and normal size. openForWriteFileNamed: opens a binary stream (... which incidentally, also lets you put strings/widestrings as if they were bytes/doublewords), to write string source as utf8, the best way is to wrap it in a stream which converts strings -> utf8 bytes, an example: binaryStream := (ByteArray new: 100) writeStream. encodedStream := ZnCharacterWriteStream on: binaryStream encoding: #utf8. encodedStream nextPutAll: 'â¬'. binaryStream contents The "best"* way is to use an API which provides an encoded stream with scoped use (so you don't have to close it manually); for instance: '/home/jimmie/xmldoc.xml' asFileReference writeStreamDo: [ :ws | ws nextPutAll: writer write contents ] should default to a file stream outputting utf8. Cheers, Henry *May or may not work in Pharo 7 though, seeing as how the old default encoded stream has been deprecated, I haven't checked. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Sept. 14, 2017

Re: [Pharo-users] Gofer loads wrong version?

by stephan

On 12-09-17 21:58, Herby VojÄÃk wrote: > Bump. > > Can you pls help me with how to load proper version / finding what is > wrong here? > > As shown in replies, it loads two versions (eg. it seems it loads > everything it finds in the repo). > > Herby > > Herby VojÄÃk wrote: >> Hello! >> >> As I need to load specific version of Glorp with my fix, and I did not >> find out how to force-override it in my baseline, I tried to load it >> post-the-baseline via Gofer: >> >> (Gofer new smalltalkhubUser: 'DBXTalk' project: 'Glorp') >> package: 'Glorp'; >> version: 'Glorp-HerbyVojcik.127'; >> load. >> >> But it actually looks like this: [see attached bogusgofer.png]. >> >> OTOH, after the image loads the tests pass and monticello browser looks >> like this: [see attached mbloaded127.png]. >> >> Am I doing something wrong? I am a bit afraid what is actually loaded / >> if it won't break b/c of inconsistent state. No, it is fine. Telling Gofer package: means prepare to load the latest version, so you give Gofer two versions to load. https://www.lukas-renggli.ch/blog/gofer Stephan

Sept. 14, 2017

Re: [Pharo-users] Writing XML

by Jimmie Houchin

I still do not know how to do this correctly. But I have something that seems to work for the moment. Using #asUTF8Bytes f nextPutAll: (writer write contents asUTF8Bytes). Now the file is in UTF-8 and normal size. Jimmie On 09/13/2017 12:02 PM, Jimmie Houchin wrote: > Hello, > > I am attempting to read and write an XML document. > > Currently I have parsed the document successfully. I have basic > navigation and have learned how to modify the XMLDocument. > > Now I want to write the modified document back to the file system. > What I have tried so far is: > > writer := XMLWriter new. > xmldoc document writeXMLOn: writer. > writer stream. > f := File openForWriteFileNamed: '/home/jimmie/xmldoc.xml'. > f nextPutAll: (writer write contents). > f flush. > f close. > > It does write an xml document to the file system. However, it has > exploded in size. The original is 28mb and is in UTF-8. The newly > written file is 112mb and is UTF-32. > > I do not know why the change in encoding or how to correct or manually > set the encoding. > > Any help in understanding how to correctly write an XML document that I > have read and minimally modified would be greatly appreciated. > > Thanks. > > Jimmie > >

Sept. 13, 2017

Re: [Pharo-users] How to convert avoiding parser

by Esteban A. Maringolo

Hi, Side note: Please sanitize the strings you use for the concatenation or use prepared statements, otherwise you could be vulnerable to SQL INJECTION attacks. Best regards, Esteban A. Maringolo 2017-09-13 17:34 GMT-03:00 Sven Van Caekenberghe <sven(a)stfx.eu>: > >> On 13 Sep 2017, at 19:44, Casimiro de Almeida Barreto <casimiro.barreto(a)gmail.com> wrote: >> >> Hello, >> >> Perhaps someone can help me with this problem: I'm saving a key pair in a mariadb/mysql table as follows: >> >> str := 'INSERT INTO chaves_de_encriptacao (numero_funcional, chave_privada, chave_publica) '. >> str := str,'VALUES ('''. >> str := str, self personId leaId asString, ''', '''. >> str := str, self keyPair privateKey asAsn1DerBytes asByteArray hex, ''', '''. >> str := str, self keyPair publicKey asAsn1DerBytes asByteArray hex,''')'. >> >> [ dbConnection execute: str ] on: Exception do: [ ^ false ]. >> >> And I'd like to recover the keys (SELECT * FROM chaves_de_encriptacao WHERE numero_funcional = 1010) and then reconvert in order to recover the original keys. Obviously I can do that by writting a parser that will get the hex and bring it back to binary but I'd like to avoid it. >> >> Question is: is there a reverse for asByteArray hex? > > Yes: > > ByteArray readHexFrom: #[ 0 1 2 3 4 5 6 7 8 9 10 ] hex. > > HTH, > > Sven > > >

Sept. 13, 2017

execute a code block at a given time in pharo ?

by Daniel BLANC

Hi All, I'm a very beginner with smalltalk. I am building a small seaside app for controlling wifi access of my teenagers kids. In this app I need to start or stop the wifi acces at a given time. For the moment I'm doing it with an infinite loop in a process, with this code: WifiController >> startScheduler ^ SchedulerProcess ifNil: [ SchedulerProcess := [ [ true ] whileTrue: [ self schedulerApplyAutoStartStopRules. 56 seconds wait ] ] forkNamed: 'DanWifiManagerScheduler' ] I'm wondering if there is a way to do this without this infinite loop ? May be there is a class in the standard pharo image that can execute a code block at a given time ? Thanks, Daniel

Sept. 13, 2017

Re: [Pharo-users] How to convert avoiding parser

by Sven Van Caekenberghe

> On 13 Sep 2017, at 19:44, Casimiro de Almeida Barreto <casimiro.barreto(a)gmail.com> wrote: > > Hello, > > Perhaps someone can help me with this problem: I'm saving a key pair in a mariadb/mysql table as follows: > > str := 'INSERT INTO chaves_de_encriptacao (numero_funcional, chave_privada, chave_publica) '. > str := str,'VALUES ('''. > str := str, self personId leaId asString, ''', '''. > str := str, self keyPair privateKey asAsn1DerBytes asByteArray hex, ''', '''. > str := str, self keyPair publicKey asAsn1DerBytes asByteArray hex,''')'. > > [ dbConnection execute: str ] on: Exception do: [ ^ false ]. > > And I'd like to recover the keys (SELECT * FROM chaves_de_encriptacao WHERE numero_funcional = 1010) and then reconvert in order to recover the original keys. Obviously I can do that by writting a parser that will get the hex and bring it back to binary but I'd like to avoid it. > > Question is: is there a reverse for asByteArray hex? Yes: ByteArray readHexFrom: #[ 0 1 2 3 4 5 6 7 8 9 10 ] hex. HTH, Sven

Sept. 13, 2017

Re: [Pharo-users] PlotMorph on Pharo 6.1

by Alexandre Bergel

Hi Mark, In case you are not tied to PlotMorph, you can use Roassal for your drawing. Roassal supports Grapher, which is a resurrection of GraphET. Documentation is available on: http://agilevisualization.com/AgileVisualization/Grapher/0203-Grapher.html <http://agilevisualization.com/AgileVisualization/Grapher/0203-Grapher.html> Open Pharo 6, load Roassal using: Gofer it smalltalkhubUser: 'ObjectProfile' project: 'Roassal2'; configurationOf: 'Roassal2'; loadDevelopment And type in a playground: b := RTGrapher new. ds := RTData new. ds noDot. ds points: (0 to: 3.1415 * 5 by: 0.01). ds y: #sin. ds x: #yourself. ds connectColor: (Color red alpha: 0.4). b add: ds. ds := RTData new. ds noDot. ds points: (0 to: 3.1415 * 5 by: 0.01). ds y: #cos. ds x: #yourself. ds connectColor: (Color blue alpha: 0.4). b add: ds. b You will get: Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > On Sep 13, 2017, at 2:49 PM, Mark Bestley <st(a)bestley.co.uk> wrote: > > Mark Bestley <st(a)bestley.co.uk> wrote: > >> In this case shouldm't the catalog only be added to if someone actually >> takes an action to do this - then there is a chance the code would be >> checked. Otherwise rollinmg over from one release to another just >> accumulates junk. >> > > OK I am now more confused as I see that suggestion does not work. > > Looking for graphing packages I tried to load GraphET - which gives a > popup box > > GraphET has not been marked as tested for Pharo6! Do you want to > continue (installation could fail) > > Which seems to me to be a good feature, > > But does imply some packages have been added and marked as tested > without being tested which does raise a large doubt in my mind as to > what is supposed to work and how can I trust parts of the system which > are marked as working. > > >> >> >> Stephane Ducasse <stepharo.self(a)gmail.com> >> wrote: >> >>> Thanks for the report since I need PlotMorph too for a project. >>> What you see is the consequence of lack of validation of published >>> packages. This is years that I'm saying that I need someone to work on >>> that. >>> We got money from inria for Pavel to work on it but the bootstrap was >>> more important :). >>> > > > -- > Mark > >

Sept. 13, 2017