January 2011 - Pharo-users - lists.pharo.org

funny idea Symbol vs. Selector
by stephane ducasse May 14, 2015

May 14, 2015

Hi guys I'm thinking aloud... I was wondering if we could not take advantage of a new class: Selector. MethodDict would only contain selectors and not symbols. I remember that I talked about that with hernan. Stef

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permutations / combinations implementation
by Tudor Girba Nov. 2, 2011

Nov. 2, 2011

Hi, Is there an implementation of permutations and combinations of a collection? Cheers, Doru -- www.tudorgirba.com "Presenting is storytelling."

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Z3950 on OSX: module yaz3 not found
by laurent laffont April 25, 2011

April 25, 2011

Hi, I want to use http://www.squeaksource.com/Z3950 Following install instructions, I've dowloaded yaz sources (I've tried 4.1.2 and 3.0.52) as it seems there's no binary for OSX, ./configure && make && make install. Then using latest Seaside One Click image I've copied /usr/local/lib/*yaz* in Seaside.app/Contents/MacOS $ ls ~/Downloads/Seaside.app/Contents/MacOS/ Squeak VM Opt libyaz.a libyaz.la libyaz_icu.a libyaz_icu.la libyaz_server.a libyaz_server.la libyaz.3.dylib libyaz.dylib libyaz_icu.3.dylib libyaz_icu.dylib libyaz_server.3.dylib libyaz_server.dylib But then I have a External Module Not Found on YAZPQFFFILibrary>>createParser " YAZPQDFFILibrary default createParser " <cdecl: YAZPQFParser 'yaz_pqf_create' (void) module: 'yaz3'> ^ self externalCallFailed Any hint ? Cheers, Laurent Laffont -- FFI newbie Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/

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Help (perfect for newcomers) migrating a technical FAQ
by Mariano Martinez Peck April 9, 2011

April 9, 2011

Hi folks. I had a good idea and and it perfect for someone that wants to help and don't know how. It is not the most entertained task, but I promise you will learn a lot. Mostly, if you are newcomer. The idea is basically to migrate the FAQ that is here: http://scg.unibe.ch/wiki/faq/pharofaq to a new section in the collaborative Pharo book: http://book.pharo-project.org/ So....any takers ? Let us know so that we generate a new user in the Book The idea is also to check whether what is says is still correct for pharo or if it needs an update. Or even how to improve it (from the view of a newcomer). Thanks Mariano

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Left recursion in PetitParser
by Andrew Black Jan. 31, 2011

Jan. 31, 2011

I have a PetitParser question. A small part of my grammar is like this: expression := constant / namedSend / ... namedSend := receiver dot namedMessage / ... receiver := expression This is of course left-recursive. I believed the "all the rest is magic" blurb and just went ahead and wrote it as given above. I get an infinite recursion when I run the parser. I know how to left-factor the grammar by hand. But should I have to? How powerful is thy magic, Lukas? Andrew

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Scrolling in a Morphic game
by Aidan Gauland Jan. 29, 2011

Jan. 29, 2011

Hello, I am developing a game in Morphic -- nothing serious; just a spare time project -- and I have come to a tricky part: the viewport. So far, I have just put my Morphs in a PasteUpMorph for testing, but now I need to have a viewport to a (game) world that is larger than the screen, and be able to pan/scroll the view around the world. I really have no idea how I could or should do this in Morphic. Maybe subclass PasteUpMorph and override #drawSubmorphs? Can anyone here offer any advice with this? Regards, Aidan

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Screencast proposition: Watch someone read code.
by Helene Bilbo Jan. 29, 2011

Jan. 29, 2011

Hi, i have a proposition for a Pharo-Screencast: I would love to look over someoneâs shoulder while she/he is *reading* code. A possible plot would be to download something from squeaksource and then trying to make sense out of it - and talking while doing so. (It would also be good to see all the relevant functions of the browser in action). Background: While i have read some books now (blue book, pharo by example, seaside by example, best practice patterns) i have never actually seen people programming. So i absolutely miss the craftsmanship side of things. Anyway thank you for Pharocasts. Best regards, Helene. -- View this message in context: http://forum.world.st/Screencast-proposition-Watch-someone-read-code-tp3244… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Making a .st file from the source of a method
by Sean P. DeNigris Jan. 29, 2011

Jan. 29, 2011

I have a class that I use to set up my images. A subclass has a method: setupScript (Smalltalk at: #UpdateStreamer) new updateFromServer. "Do other stuff..." I want to save the statements of the method above in a .st file to pass as an argument to the vm. That's all working, but in order to retrieve the two statements above, I do: setupScriptContents | scriptMethod sourceString sourceStringWithBracketsStripped | scriptMethod := PharoTrunkImage compiledMethodAt: #setupScript. sourceString := scriptMethod methodNode body asString. sourceStringWithBracketsStripped := sourceString copyFrom: 3 to: sourceString size - 2. ^ sourceStringWithBracketsStripped. That works, but I don't like it. What's the best way to do this (or is this it)? Thanks. Sean -- View this message in context: http://forum.world.st/Making-a-st-file-from-the-source-of-a-method-tp324624… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Polymorph example
by laurent laffont Jan. 28, 2011

Jan. 28, 2011

Hi, I've written a tiny little application to prepare a screencast on Polymorph / GUI. As I'm far from being expert on this, can someone check that it is done "the right way" (especially on how to manage OK/Cancel ) ? Gofer it squeaksource: 'LaurentLSandbox'; package: 'AddressBook'; load. (Smalltalk at:#ContactListEditor) open. Thanks. Laurent Laffont - @lolgzs <http://twitter.com/#!/lolgzs> Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/

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Downloading a JPEG
by Sean P. DeNigris Jan. 28, 2011

Jan. 28, 2011

Is there a way to save a JPEG from the web to a file in Pharo? I can open it as a Form, but I also want a copy of the original saved. Thanks. Sean -- View this message in context: http://forum.world.st/Downloading-a-JPEG-tp3243718p3243718.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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