October 2018 - Pharo-users - lists.pharo.org

EXIF / JPEG metadata
by Alistair Grant Nov. 30, 2025

Nov. 30, 2025

Hi Everyone, As far as I can tell, JPEGReadWriter in Pharo 7 doesn't read (or write) the image metadata, e.g. title, keywords, exposure time, etc. Is anyone aware of a package that does? Thanks! Alistair

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Re: [Pharo-users] Personal wiki / information manager
by Evan Donahue Sept. 25, 2023

Sept. 25, 2023

Seems that Pharo is a magnet for this kind of project. I've been writing one as well and using it to organize my research notes. Does anyone working on personal info mgmt tools want to talk offline? I expect we're running into some of the same issues, both conceptual and technical. Evan

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Pharo 6.0 and 6.1 64 bit freeze on MacMini
by Ted F.A.van Gaalen Jan. 27, 2020

Jan. 27, 2020

Hi, I reverted to 5.0 because Pharo 6.0 and 6.1 64 bit hangs on my Mac Mini with UDH 4K screen (may that has to do with?) with its maiden image (at first start after download when: I resize or go to full screen. Maybe VM problem? my mac Mini metrics: Hardware Overview: Model Name: Mac mini Model Identifier: Macmini6,2 Processor Name: Intel Core i7 Processor Speed: 2,6 GHz Number of Processors: 1 Total Number of Cores: 4 L2 Cache (per Core): 256 KB L3 Cache: 6 MB Memory: 4 GB Boot ROM Version: MM61.0106.B1F SMC Version (system): 2.8f0 maybe this problem was already reported, but could find it. Kind Regards TedvG

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Namespaces (was Re: Behold Pharo: The Modern Smalltalk)
by Ben Coman Dec. 24, 2019

Dec. 24, 2019

On Thu, Oct 12, 2017 at 8:52 PM, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > horrido wrote > > Having separate namespaces would be really good. > > VisualWorks has them. Why not Pharo? > > I can't remember ever hearing disagreement on this subject. It seems the > only questions have been: 1) how to do them *right*, The default position would be leveraging someone else's experience, so this begs the question, what is wrong in namespace implementations in VW, Gemstone, Squeak (as our immediate neighbours, then plus Dolphin, SmalltalkX, other languages) Are there been any research papers around comparing these? I found the "Pharo on Gemstone VM" talk impressive. The "develop on Pharo deploy on Gemstone" philosophy seems like a nice synergy for Pharo's commercial future. So a naive approach would be to do namespaces just like Gemstone. Maybe its not the best, but would it be "good enough" -- perfection being the enemy of done and all that jazz. cheers -ben > and 2) where they fall on the endless prioritized todo list >

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Parsing in VW
by Steffen MÃ¤rcker Dec. 3, 2019

Dec. 3, 2019

Dear all, I have two questions regarding parsing frameworks. 1) Do you have any insights on the performance of SmaCC VS Xtreams Parsing VS PetitParser? 2) Has anybody started to port PetitParser 2 from Pharo to VW? Is it worth the effort? Sorry for cross-posting, I thought this might interest both communities. Cheers, Steffen

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Microsoft COM
by Ben Coman Sept. 27, 2019

Sept. 27, 2019

Hi Pablo, At work I managed to remote control Internet Explorer with Excel VBA like this... [1] http://www.automateexcel.com/vba/automate-internet-explorer and went looking for how similar might be achieved from Pharo. IIUC I discovered this would be done via Microsoft's Component Object Model, and then I bumped into your repo... [2] https://github.com/tesonep/pharo-com Could you advise the status and your plans for this? Since I see its only a few months old I've probably stumbled onto it prematurely, but I see no documentation or tests to discover how to use it. So I'll curious whether it makes something like [1] possible? And could you show how that would be done? cheers -ben P.S. For context, at work I automated IE since the intranet document management system (OpenText) does authentication via a javascript function in the browser, which doesn't compute with Microsoft's MSXML.DOMDocument component. So I use IE to do the authentication and grab the raw XML from IE to then stuff it into MSXML.DOMDocument from which I pull the data I need. But I'd love to do it with Pharo instead (if I can get IT to white list it) cheers -ben

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ZnUrls with Non-ASCII characters
by Sean P. DeNigris March 23, 2019

March 23, 2019

'https://en.wiktionary.org/wiki/prÃªt#French' asUrl ==> ZnCharacterEncodingError: ASCII character expected. Ideas? ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Calypso question: adding a context menu item
by Juraj Kubelka March 16, 2019

March 16, 2019

Hi, To implement a context menu item. I have implemented a new class: -=-=-=- CmdCommand subclass: #ClyHelloCommand instanceVariableNames: '' classVariableNames: '' package: 'Calypso-Extensionsâ -=-=-=- with methods: -=-=-=-=- ClyHelloCommand class >> #systemBrowserMenuActivator <commandActivator> ^CmdContextMenuCommandActivator byRootGroupItemFor: ClyVariableSystemBrowserContext ClyHelloCommand >> # defaultMenuItemName ^'Say Helloâ ClyHelloCommand >> # execute self inform: 'Hello' -=-=-=-=- But it does not display in the context menu. I expect it next to âGenerate accessorsâ as I took this command as an example. What do I miss? Thanks, Juraj

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Aggregation framework in MongoTalk?
by phil＠highoctane.be Feb. 18, 2019

Feb. 18, 2019

Is there anyone using the aggregation framework of MongDb through MongoTalk? It uses the aggregate() command, so I was wondering if this could be supported out of the box or if there is a need for an additional Operation. TIA Phil

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Re: [Pharo-users] adding instance variables (data) to the Object class
by Marcus Denker Jan. 13, 2019

Jan. 13, 2019

> On 6 Sep 2018, at 23:35, Petr Fischer via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Petr Fischer <petr.fischer(a)me.com> > Subject: adding instance variables (data) to the Object class > Date: 6 September 2018 at 23:35:26 CEST > To: pharo-users(a)lists.pharo.org > > > Hello! Weird question: why I can't add instance variables to the Object class (for example "oid" or something else)? Is it due to some internal (and different) VM "class layouts"? > > Or - can I inject my own information to all existing objects (any class)? > Behavior is a subclass of Object, too. So that means that you would add a ivar to all the classes, but for the VM an object can only be a class that has three ivars, and those are accessed by offset. So if you add an ivar, you shift the offset â> problem. As for âI want to add object specific stateâ: it would be nice to add an easy to use (and efficient) mechanism to do it. Marcus

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