- Pharo-users - lists.pharo.org

How many active Smalltalkers worldwide?
by horrido.hobbies＠gmail.com July 27, 2021

July 27, 2021

Iâm guessing between 10 and 20 thousand. Iâm guessing a few thousand for each of GemStone/S, Pharo, Squeak, VAST, and VisualWorks. Iâm guessing a few hundred for each of Amber, Cuis, Dolphin, and GNU.

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ZnServer on a cheap server: your experiences
by vinref＠gmail.com July 27, 2021

July 27, 2021

Anyone here run a web app using plain ZnServer (or subclasses) on a cheap VPS (i.e., $10/month DO droplet or equivalent). What are your experiences?, suggestions. I am planning a web app with just plain ZnServer, SQLite3, ATS or equivalent. Thanks, Vince

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Error in Pharo 9's Spec UI Framework Demo
by tau July 26, 2021

July 26, 2021

In the Spec2 examples included with Pharo9, in the example for SpListPresenter, when I try to input text in the list filter, I get an error: the debug window says: "Instance of OrderedCollection did not understand #hasElementAt:". The example works correctly in Pharo8. Is there a workaround to make the example work?

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The Greatest Contributors to Smalltalk since 1980
by horrido.hobbies＠gmail.com July 26, 2021

July 26, 2021

Iâm looking for a list of individuals who have contributed greatly to the advancement of Smalltalk, post Xerox PARC period (1972-1980). By advancement, I donât only mean on a technical basis but on an educational or public awareness basis (this could include books, podcasts, talk circuit, video instruction, etc.). Any basis that has made Smalltalk a success in the marketplace (including commercialization). I posted this question on LinkedIn and got one useful response: the late James Robertson. My personal nomination is Kent Beck. Iâm not that familiar with the deep history of Smalltalk, so Iâm looking for more nominations. Thanks.

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How do I remove old classes?
by Clacton Server July 23, 2021

July 23, 2021

I have been having an enduring problem with Pharo "disappearing" on any machine I try it on. In an effort to resolve that it isn't my code, I want to remove the Package that contains all my Seaside code so that I can install a minimal home page under Seaside. This will, at least exonerate my code. However, I have removed the offending package, executed Smalltalk cleanUp: true but I can still get into the old code. A debugger comes up when I try the old code and it shows "AnObsoleteCNWMeetingsGalleries(AnObsoleteCNWBasic)" so the code is still there and all the bots that have the address will still be calling it. How do I finally remove the code? David Pennington

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[ANN] Buoy v6.1.0 [v6.1.0] released!
by Buenos Aires Smalltalk July 23, 2021

July 23, 2021

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Pharo concurrency: select on socket or file IO
by vinref＠gmail.com July 22, 2021

July 22, 2021

Can the Pharo VM or a library do a âselectâ on a collection of processes waiting on a socket or file IO? Something like https://man7.org/linux/man-pages/man2/select.2.html, or https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-sel…. Say I have a bunch of forked processes and some will get blocked waiting for IO. I would put the blocked connections/processes in a collection and non-blocked processes can continue to do useful work. At some appropriate I would do a select on the blocked processes and resume those that are done. Vince

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Share package
by mspgate＠gmail.com July 22, 2021

July 22, 2021

Hello everybody, sorry for the newbie question. I would like to know what is the fastest, lightweight way to share a package with other Pharo users. the package can be downloaded from my GitHub. thanks. d

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[ANN] smalltalkCI now supports Pharo 10
by Esteban Lorenzano July 21, 2021

July 21, 2021

... this is more for Pharo developpers than Pharo users, but informing also users just in case :) https://github.com/hpi-swa/smalltalkCI/pull/538 Esteban

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How to handle (recover) from a ZnInvalidUTF8: Illegal continuation byte for utf-8 encoding error?
by Tim Mackinnon July 20, 2021

July 20, 2021

Hi - Iâm doing a bit of log file processing with Pharo - and Iâve hit an unexpected error and am wondering what the best way to approach it is. It seems that I have a log file that has unexpected characters, and so my readStream loop that reads lines gets an error: "ZnInvalidUTF8: Illegal continuation byte for utf-8 encodingâ. For some reason this file (unlike my others) seems to contain characters that it shouldnât - but what is the best way for me to continue processing? Should I be opening my files in a different way - or can I resume the error somehow- Iâm not familiar with this area of Pharo and am after a bit of advice. My code is like this (and I get the error when doing nextLine) parseStream: aFileStream with: aBlock | line items | [ (line := aFileStream nextLine) isNil ] whileFalse: [ items := $/ split: line. items size = 3 ifTrue: [aBlock value: items]] My stream is created like this: firmEfs := (pathName , '/' , firmName , '_files') asFileReference. details parseStream: firmEfs readStream. Should I be opening the stream a bit differently - or can I catch that encoding error and resume it with some safe character? Thanks for any help. Tim

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