January 2017 - Pharo-users - lists.pharo.org

Adding our local hackerspace to Pharo Teachers page
by Offray Vladimir Luna CÃ¡rdenas April 7, 2017

April 7, 2017

Hi :-), We're teaching/learning Pharo in a consistent fashion in our local hackerspace, HackBo in BogotÃ¡, Colombia. Could you please add this line to the Pharo Teachers page: HackBo, Hackerspace en BogotÃ¡, Colombia. http://hackbo.co/ Thanks, Offray

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[ANN] Image saver with time tag
by phil＠highoctane.be March 18, 2017

March 18, 2017

I like to save images with a time tag and got tired of typing in the save window. So, there is HOImageSaver. https://github.com/Pharophile/HOImageSaver It works with Pharo 5. Load as follows: Metacello new githubUser: 'pharophile' project: 'HOSImageSaver' commitish: 'master' path: 'packages'; baseline: 'HOImageSaver'; onWarningLog; load Phil

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doesNotUnderstand: infinit loop
by Hilaire March 17, 2017

March 17, 2017

Hi, My Pharo4.0 image is in a situation where each MNU exception throw from a DNU result in infinite loop, locking the image, even not breakable with alt+[.]. >From the doesNotUnderstand: message, the "exception reachedDefaultHandler" always returns true, and it results in the execution of the true block, sending again the original message to the original object, repeating a DNU and so on. Any idea how to fix that? Thanks Hilaire doesNotUnderstand: aMessage "Handle the fact that there was an attempt to send the given message to the receiver but the receiver does not understand this message (typically sent from the machine when a message is sent to the receiver and no method is defined for that selector)." "Testing: (3 activeProcess)" | exception resumeValue | (exception := MessageNotUnderstood new) message: aMessage; receiver: self. resumeValue := exception signal. ^exception reachedDefaultHandler ifTrue: [aMessage sentTo: self] ifFalse: [resumeValue] -- Dr. Geo http://drgeo.eu

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Moving from Slack to Discord
by Dimitris Chloupis March 9, 2017

March 9, 2017

I have been aware about Discord for some time now , but I never used it because both Pharo and Unreal channels are on Slack. From my small experience with it, it seemed much more superior to Slack with added bonus that is completely free (open source ) and with no restrictions unlike Slack. But something happened suddenly yesterday, I opened Unreal in Slack and it was gone with a notification that they moved to Discord. So I grabbed this opportunity to create a Pharo server you can join here https://discord.gg/F6nAd Discord works as web apps but also you can download as an app for Windows, Macos , iOS and Android. I will be around in Discord because I generally browser Unreal channels. The nice thing about Discord also is that it offers both audio and video chat for free which can work great for Pharo sprints. Anyway there is no harm on testing it.

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GitFileTree on Pharo 5.0
by Trussardi Dario Romano Feb. 26, 2017

Feb. 26, 2017

Ciao, i have a Pharo5.0 Latest update: #50763 image run on MacBook Pro with OS X 10.7.5. When i load the GitFileTree support the environment go in loop and i need to shut it. Considerations? Thanks, Dario

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Coding XPath as Smalltalk
by PBKResearch Feb. 20, 2017

Feb. 20, 2017

Hello I am using XPath as a way of dissecting web pages, especially from Wiktionary. Generally I get good results, but I could get useful extra flexibility by using the binary Smalltalk operators to represent XPath, as mentioned at the end of the class comment for XPath. However, the description there is very terse, and I am having difficulty seeing how to include more complex expressions, especially attribute tests. I have put some of my XPath expressions through the XPath compiler and looked at the output, and out of that I have found expressions which work but look very clumsy. As an example, I have used the fragment: document xPath: '//div[@id=''catlinks'']//li//text()' and found that an equivalent is: document //'div' ?? [:node :x :y|(node attributeAt: 'id') = 'catlinks']//'li'//[:n| n isStringNode]]. (I had to put two dummy arguments in the three-argument block to get it to work.) Is there a more extensive explanation of the use of these binary operators? If not, could some kind person show me the most concise translation of the sample XPath above, to give me a start in working out more complex cases? Many thanks for any help. Peter Kenny

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GitFileTree in Pharo 5
by sergio ruiz Feb. 13, 2017

Feb. 13, 2017

Hey, all. I am trying to install GitFileTree from the Catalog Browser. I get a warning that itâs not tested with Pharo 5. I go ahead anyway, and it just hangs. Has anyone else installed it on macOS? Is there a different package I should be using? Thanks! ---- peace, sergio photographer, journalist, visionary Public Key:Â http://bit.ly/29z9fG0 #BitMessageÂ BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV http://www.Village-Buzz.com http://www.ThoseOptimizeGuys.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

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These beautiful tooltips
by Hilaire Feb. 6, 2017

Feb. 6, 2017

Hi, So in Pharo5 we have these 'beautiful' unreadable tooltips: tiny black font on light gray (ie. take a look to its squeak counter part, it looks so much more pro) Is there a way to programmatically change the backround color? Thanks Hilaire -- Dr. Geo http://drgeo.eu

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self in Nautilus
by Siemen Baader Feb. 2, 2017

Feb. 2, 2017

Hi all, in Nautilus, `self` is always the current class instance. This is great for coding class side methods because we can test code fragments live in the editor, but for instance side methods I have not seen the usefulness of it. At times it can even be confusing and cause errors since a "print it" of it looks quite like an instance (`a Listener` vs `Listener`). Is there a rationale why `self` in instance view does not raise an error or is nil? And, more importantly, could there be a way to set it to a specific value (= can we browse a class with self bound to an specific instance). This would resemble programming in the debugger, but provide the overview that a class browser provides. cheers, Siemen

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Phobos and printing
by Hilaire Feb. 1, 2017

Feb. 1, 2017

Hi Pavel, Is there a way to ask a PhobosHTMLCanvas instance to print an html file. I have html files built from Mustache templates and I try to send it to the print dialog via Phobos. So far I send an entire locale html file content via #rawXML: message, but I got mix results, the style does not seem to be taken in consideration. Thanks Hilaire -- Dr. Geo http://drgeo.eu

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