May 2019 - Pharo-users - lists.pharo.org

Bloc of code in tiers programming language
by Hilaire May 18, 2019

May 18, 2019

Hi, We, Smalltalkers, use bloc of code as easily as we breathe air. I am writing an article on Smalltalk programming for a French mathematics teachers magazine. To illustrate the simplicity of Smalltalk, I would like to compare how the bloc of code 'f' and 'df' below will be implemented in Javascript and Python: f := [ :x | x cos + x ]. df := [ :x | (f value: x + 1e-8) - (f value: x) * 1e8]. Here f is a way to implement a function and df its derivate. Do some of you knows how it will be written in Javascript and Python with their own ad-hoc anonymous function? Thanks Hilaire -- Dr. Geo http://drgeo.eu

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can I do this with a stream or a format
by Roelof Wobben May 17, 2019

May 17, 2019

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[ANN] Next Pharo Sprint: May 24
by Marcus Denker May 17, 2019

May 17, 2019

We will organize a Pharo sprint / Moose dojo May 24, starting at 10:00am. (Local Time Paris). Goals of this sprint: - Pharo 8: Fix issues from tracker https://github.com/pharo-project/pharo/issues Remote Sprint: Remotely, you can join us on Discord. During the sprint, we synchronize local and remote Pharo sprinters: http://pharo.org/contribute-events We have added a Board to coordinate the work: https://github.com/orgs/pharo-project/projects/9 Known Local Sprint meetings Lille/France: It will be at the Inria Lille, Building B, third floor (RMoD offices). As the building is not open to the public, please contact us before if you plan to come

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Small query about ZnClient post - with "; " form values
by Tim Mackinnon May 17, 2019

May 17, 2019

I was trying to automate posting some values to a website (I would use Stfx.eu but it doesnât do syntax highlighting and only seems to work for quite small amounts). Anyway the following code always seems to trim values that have a ; in them - and Iâm wondering if Iâm missing something - or if its the endpoint that has an issue (although curl seems to work fine). content := 'hello world; hello'. ZnClient new systemPolicy; beOneShot; url: 'http://dpaste.com/api/v2/'; formAt: 'title' put: 'my; title'; formAt: 'syntax' put: 'smalltalk'; formAt: 'expiry_days' put: '5'; formAt: 'content' put: content; post. Tim

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Zinc - multipart forms query
by Ben Coman May 17, 2019

May 17, 2019

We are trying to replicate the following in Pharo... $ echo "hello; world" | curl -s -F "syntax=smalltalk" -F "content=<-" http://dpaste.com/api/v2/ like this... url := ZnClient new logToTranscript; systemPolicy; beOneShot; url: 'http://dpaste.com/api/v2/'; formAt: 'syntax' put: 'smalltalk'; formAt: 'content' put: 'hello; world'; post. Curl produces... "hello; world" http://dpaste.com/2Y15WGY but Zinc produces only... "hello" http://dpaste.com/28E974Y The difference is apparent on the wire... With curl... [image: image.png] With Zinc... [image: image.png] The curl manpage says... -F, --form <name=content> For HTTP protocol family, this lets curl emulate a filled-in form in which a user has pressed the submit button. This causes curl to POST data using the Content-Type multipart/form-data according to RFC 2388. So we've used multipart forms elsewhere already... https://github.com/exercism/pharo-smalltalk/blob/4a88c397/dev/src/ExercismT… <https://github.com/exercism/pharo-smalltalk/blob/4a88c397e550f1319b7be4dbff…> https://github.com/exercism/pharo-smalltalk/blob/4a88c397/dev/src/ExercismT… <https://github.com/exercism/pharo-smalltalk/blob/4a88c397e550f1319b7be4dbff…> https://github.com/exercism/pharo-smalltalk/blob/9c6b91aaf/dev/src/Exercism… <https://github.com/exercism/pharo-smalltalk/blob/9c6b91aa9fd10ae1efdfa779e0…> https://github.com/exercism/pharo-smalltalk/blob/0e0bd82ed/dev/src/Exercism… <https://github.com/exercism/pharo-smalltalk/blob/0e0bd82ed74c9966d2375d9392…> so I'm sure we can achieve what we want, just curious if there might be any convenience methods that could be used similar to the examples given on the rest of curl's "-F" description. Or if there could be? Curl examples are often used for reference by APIs ( http://dpaste.com/api/v2/) and a close map between curl and Zinc would be really great. cheers -ben P.S. I even wonder if a ZnCurl would be useful that parsed curl strings. This would firstly provide ease of use for newcomers, and secondly define how to map through to native Zinc methods.

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Pharo Launcher could select newly created image (to be played) by default
by Christopher Fuhrman May 17, 2019

May 17, 2019

I posted a feature request at https://github.com/pharo-project/pharo-launcher/issues/339

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upload a stack trace with playground
by Roelof Wobben May 15, 2019

May 15, 2019

Hello, I tried to upload a stack trace with playgroundÂ with upload to cloud but I see then a 400 bad request error message. I was a file of 3Kb. Is there a alternative so I can upload a stack trace. Roelof

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Pharo download with wget
by BrunoBB May 15, 2019

May 15, 2019

Hi, Pharo image is created with: wget -O- https://get.pharo.org/64 | bash So far so good . But the following sentence display an error: ./pharo Pharo.image eval 3+4 It answer 7 but also show some errors: [user@localhost linux-server-tools]$ ./pharo Pharo.image eval 3+4 ioLoadModule(/home/gemstone/test/linux-server-tools/pharo-vm/lib/pharo/5.0-201901051900/libgit2.so): libcurl-gnutls.so.4: cannot open shared object file: No such file or directory ioLoadModule(/home/gemstone/test/linux-server-tools/pharo-vm/lib/pharo/5.0-201901051900/libgit2.so): libcurl-gnutls.so.4: cannot open shared object file: No such file or directory tryLoading(/home/gemstone/test/linux-server-tools/pharo-vm/lib/pharo/5.0-201901051900/libgit2.so/.libs/,libgit2.so): stat(/home/gemstone/test/linux-server-tools/pharo-vm/lib/pharo/5.0-201901051900/libgit2.so/.libs/) Not a directory External module not found ExternalLibraryFunction(Object)>>error: ExternalLibraryFunction(Object)>>externalCallFailed ExternalLibraryFunction(ExternalFunction)>>invokeWithArguments: LGitLibrary>>libgit2_init FFICalloutAPI>>function:module: LGitLibrary(Object)>>ffiCall: LGitLibrary>>libgit2_init [ self libgit2_init. self recordInitializationSuccess ] in LGitLibrary>>initializeLibGit2 in Block: [ self libgit2_init.... BlockClosure>>on:do: LGitLibrary>>initializeLibGit2 LGitLibrary class>>startUp: ClassSessionHandler>>startup: [ :each | each startup: isImageStarting ] in WorkingSession>>runStartup: in Block: [ :each | each startup: isImageStarting ] [ aBlock value: each ] in [ :each | [ aBlock value: each ] on: Exception do: [ :error | self errorHandler handleError: error ] ] in WorkingSession>>runList:do: in Block: [ aBlock value: each ] BlockClosure>>on:do: [ :each | [ aBlock value: each ] on: Exception do: [ :error | self errorHandler handleError: error ] ] in WorkingSession>>runList:do: in Block: [ :each | ... Array(SequenceableCollection)>>do: WorkingSession>>runList:do: WorkingSession>>runStartup: WorkingSession>>start: SessionManager>>launchSnapshot:andQuit: [ isImageStarting := self launchSnapshot: save andQuit: quit. wait signal ] in SessionManager>>snapshot:andQuit: in Block: [ isImageStarting := self launchSnapshot: save and...etc... [ self value. Processor terminateActive ] in BlockClosure>>newProcess in Block: [ self value.... 7 Any idea what is going on ? Researching on this issue... regards, bruno -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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TelePharo breaks Calypso tabs
by Alistair Grant May 14, 2019

May 14, 2019

Hi Dennis & Everyone, I'm just starting to play with TelePharo - it's really impressive. However loading either the server or client in Pharo 7 or Pharo 8 breaks Calypso so that I can no longer click on tabs to move between the Comment, Class Definition or methods. Is this a known issue? And is there a fix or workaround? In both Pharo 7 & 8 TelePharo was loaded with: Metacello new baseline: 'TelePharo'; repository: 'github://pharo-ide/TelePharo'; load: 'Server'. Metacello new baseline: 'TelePharo'; repository: 'github://pharo-ide/TelePharo'; load: 'Client'. in separate clean images downloaded 14 May 2019. OS: Ubuntu 16.04. Thanks! Alistair

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Blog Post 1 (11th - 12th May) - Evelyn Cusi
by EVELYN CUSI LOPEZ May 13, 2019

May 13, 2019

Blog Post for this Weekend has been uploaded to: https://medium.com/@cusi.evelyn/better-and-more-refactorings-for-pharo-part…

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