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PetitParser Help

by Mohammad Al Houssami (Alumni)

Hello Everyone I was going over PetitParser part on the pharo by example book. http://pharobooks.gforge.inria.fr/PharoByExampleTwo-Eng/latest/PetitParser.… It was all going good until page 11. Script 1.19is for creating the class so this was fine. You get an ExpressionGrammar class with all the needed variables, but what about script 1.20? Where does this script go? I understand what the code does. It is describing a grammar for mathematical expressions by defining what everything is and the rules of the grammar. I am not sure where shall I put this script to run it. In earlier examples I was using the workspace. Any help is much appreciated. Mohammad

March 13, 2013

Re: [Pharo-users] [Pharo-project] [squeak-dev] GSoC13: Google Summer of Code started, your ideas please!

by Guillermo Polito

Hi Janko! We have this: Level: intermediate Possible mentor: Guillermo Polito Possible second mentor: Esteban Lorenzano Description: DBXTalk database driver nowadays uses a native library called OpenDBX. This library stands as an adaptor between different database drivers, implemented in C. This native library supposes many problems: - it should be normally compiled for each different platform (Windows, *nix, macosx) and database vendor - each of its bugs should be fixed in a C source code base - OpenDBX do not expose the particular behavior of each database vendor, but their common denominator - difficulty for distribution, and problems to locate libraries. This project proposes to use NativeBoost bindings to remove the necessity of the native openDBX library, simplifying the deployment of applications using relational databases, and moving all the code base to Smalltalk. Technical Details: This project supposes the replacement of openDBX old FFI bindings by direct nativeBoost bindings to the database drivers. The new drivers should be completely written in Smalltalk, and take care of platform and library resolution in the image side. These drivers should be polymorphic while also enabling the access to specific API provided by database vendors. Benefits to the Student - Use a highly reflective dynamic language - Learn the basics of foreign function interface (and its exponent NativeBoost) - Learn how to manage external resources and platform specific native code - Put into usage its object design skills to transform a structured designed library into an object oriented one Benefits to the Community - A more malleable and full smalltalk implementation of relational database drivers - Easier deploy for applications using relational databases - Database divers exposing their particular apis, providing access to features not available before Guille On Sat, Mar 9, 2013 at 2:16 PM, Janko MivÅ¡ek <janko.mivsek(a)eranova.si>wrote: > Hi Stef, > > Post on the mailing list for each project idea by following this template: > > Level: (beginner, intermediate, advanced) > > Possible mentor: > > Possible second mentor: > > Description > > Technical Details > > Benefits to the Student > > Benefits to the Community > > Best regards > Janko > > Dne 09. 03. 2013 13:46, piÅ¡e stephane ducasse: > > Hi janko > > > > How do you want to proceed for the topics? > > I have a list of topics now where do we write them. > > > > - tool support rewrite rules > > - new generation debugger > > - new change model and session manager (with martin dias) > > - improving roassal (with alexandre bergel et vanessa pena) > > - improving eyesee (with alexandre bergel et vanessa pena) > > - support touch event > > - UIPainter (with esteban lorenzano) > > - New widgets > > > > > > Stef > > > > > >> Dear Smalltalkers, > >> > >> Time for your cool project ideas on this year Smalltalk GSoC! > >> > >> For now just express any idea you have here on the mailing list. Later > >> we will together develop it to be in complete format together with two > >> mentors needed. Deadline is end of Mart, so we have three weeks of time. > >> To see how fully developed ideas look like please look at 2012 ones at: > >> http://gsoc2012.esug.org/ideas. > >> > >> Note also that students yourselves can propose a GSoC project. So if you > >> like to be a student on this year GSoC and have a nice idea, don't be > >> shy and propose it here! The community will listen you and guide to the > >> really nicely proposed project. Last year 6 student proposed projects > >> were accepted and finished successfully! > >> > >> For the community, start looking around for students. Think about how to > >> approach the universities near by you, do you know who to contact > >> there, etc. > >> > >> We are namely preparing an application to this year Smalltalk Google > >> Summer of Code under ESUG umbrella, as last year. If accepted, Google > >> will pay few stipendiums to students on our Smalltalk projects. > >> > >> More on our special Smalltalk GSoC 2013 website: > >> > >> http://gsoc2013.esug.org > >> > >> I'm specially inviting mentors of all past GSoCs to rejoin the mentors > >> mailing list, where we discuss all details about this year GSoC: > >> > >> http://groups.google.com/group/smalltalk-gsoc-mentors > >> > >> While students interested on GSoC please join a special Smalltalk GSoC > >> mailing list for you: > >> > >> http://groups.google.com/group/smalltalk-gsoc-students > >> > >> Best regards > >> Janko > >> > >> > >> -- > >> Janko MivÅ¡ek > >> Aida/Web > >> Smalltalk Web Application Server > >> http://www.aidaweb.si > >> > > > > > > > > -- > Janko MivÅ¡ek > Aida/Web > Smalltalk Web Application Server > http://www.aidaweb.si > >

March 13, 2013

Re: [Pharo-users] Nautilus class references?

by Sean P. DeNigris

Mariano Martinez Peck wrote > this one was always more difficult than > a fatality in mortal combat. Ah, the memories!! ----- Cheers, Sean -- View this message in context: http://forum.world.st/Nautilus-class-references-tp4676565p4676607.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

March 13, 2013

Re: [Pharo-users] Changing mouse position from Pharo.

by Santiago Bragagnolo

Thank you Carla! :D. I Agree Phil. It would be nice to have it in the system! 2013/3/13 Carla F. Griggio <carla.griggio(a)gmail.com> > Yep, the first thing I tried when I had to deal with this was using > InputEventSensor, but I couldn't manage to use it for changing the mouse > position. > As the InputEventSensor takes the position from the hardware cursor as you > say, the workaround we found was actually changing the hardware cursor's > position using FFI :P > > Cheers, > Carla > > > On Wed, Mar 13, 2013 at 2:25 PM, phil(a)highoctane.be <phil(a)highoctane.be>wrote: > >> The InputEventSensor does some reading about that and at one point >> updates the ActiveHand. >> >> But it looks like we do read that from primitives. Not sure there is a >> way to do that. >> Interesting question! >> >> Phil >> >> 2013/3/13 Santiago Bragagnolo <santiagobragagnolo(a)gmail.com>: >> > Hi all! >> > >> > I'm doing a bizarre experiment where i need to change the position >> of >> > the mouse to a fixed point (like make the mouse pointer to jump from >> where >> > it is to a button). Does anyone have a clue about how to? >> > >> > Thanks in advance! >> > >> > Santiago >> >> >

March 13, 2013

Re: [Pharo-users] Changing mouse position from Pharo.

by phil＠highoctane.be

This feature would be nice to have in the base system and not require FFI. Glad you have an answer! Phil 2013/3/13 Carla F. Griggio <carla.griggio(a)gmail.com>: > Yep, the first thing I tried when I had to deal with this was using > InputEventSensor, but I couldn't manage to use it for changing the mouse > position. > As the InputEventSensor takes the position from the hardware cursor as you > say, the workaround we found was actually changing the hardware cursor's > position using FFI :P > > Cheers, > Carla > > On Wed, Mar 13, 2013 at 2:25 PM, phil(a)highoctane.be <phil(a)highoctane.be> > wrote: >> >> The InputEventSensor does some reading about that and at one point >> updates the ActiveHand. >> >> But it looks like we do read that from primitives. Not sure there is a >> way to do that. >> Interesting question! >> >> Phil >> >> 2013/3/13 Santiago Bragagnolo <santiagobragagnolo(a)gmail.com>: >> > Hi all! >> > >> > I'm doing a bizarre experiment where i need to change the position >> > of >> > the mouse to a fixed point (like make the mouse pointer to jump from >> > where >> > it is to a button). Does anyone have a clue about how to? >> > >> > Thanks in advance! >> > >> > Santiago >> >

March 13, 2013

Re: [Pharo-users] Changing mouse position from Pharo.

by Carla F. Griggio

Yep, the first thing I tried when I had to deal with this was using InputEventSensor, but I couldn't manage to use it for changing the mouse position. As the InputEventSensor takes the position from the hardware cursor as you say, the workaround we found was actually changing the hardware cursor's position using FFI :P Cheers, Carla On Wed, Mar 13, 2013 at 2:25 PM, phil(a)highoctane.be <phil(a)highoctane.be>wrote: > The InputEventSensor does some reading about that and at one point > updates the ActiveHand. > > But it looks like we do read that from primitives. Not sure there is a > way to do that. > Interesting question! > > Phil > > 2013/3/13 Santiago Bragagnolo <santiagobragagnolo(a)gmail.com>: > > Hi all! > > > > I'm doing a bizarre experiment where i need to change the position of > > the mouse to a fixed point (like make the mouse pointer to jump from > where > > it is to a button). Does anyone have a clue about how to? > > > > Thanks in advance! > > > > Santiago > >

March 13, 2013

Re: [Pharo-users] Changing mouse position from Pharo.

by phil＠highoctane.be

The InputEventSensor does some reading about that and at one point updates the ActiveHand. But it looks like we do read that from primitives. Not sure there is a way to do that. Interesting question! Phil 2013/3/13 Santiago Bragagnolo <santiagobragagnolo(a)gmail.com>: > Hi all! > > I'm doing a bizarre experiment where i need to change the position of > the mouse to a fixed point (like make the mouse pointer to jump from where > it is to a button). Does anyone have a clue about how to? > > Thanks in advance! > > Santiago

March 13, 2013

Re: [Pharo-users] Changing mouse position from Pharo.

by Carla F. Griggio

Hey! Uff, yes. When GermÃ¡n and I did this project: http://ss3.gemstone.com/ss/KinematicTemplates.html, we had to fight a lot with that. Take a look at the code. In the package KinematicTemplates-FFI there's a class Invokator that changes the cursor position at OS level: Invokator(class)>>apiCGWarpMouseCursorPosition: aCGPoint "CGError CGWarpMouseCursorPosition(CGPoint newCursorPosition);" < apicall: void 'CGWarpMouseCursorPosition' ( CGPoint ) module: 'CoreGraphics.framework'> ^ self externalCallFailed. And then, an example of usage: Invokator apiCGWarpMouseCursorPosition: (CGPoint from: 30@30 ). Tricky detail: if after evaluating that example you print World activeHand position, it will not be 30@30, so you also have to update the activeHand's position: World activeHand position: 30@30. Tell me if you need something else, or if this isn't really what you needed :P Cheers, Carla. On Wed, Mar 13, 2013 at 12:28 PM, Santiago Bragagnolo < santiagobragagnolo(a)gmail.com> wrote: > Hi all! > > I'm doing a bizarre experiment where i need to change the position of > the mouse to a fixed point (like make the mouse pointer to jump from where > it is to a button). Does anyone have a clue about how to? > > Thanks in advance! > > Santiago >

March 13, 2013

Re: [Pharo-users] Nautilus class references?

by Mariano Martinez Peck

On Wed, Mar 13, 2013 at 7:42 AM, Esteban Lorenzano <estebanlm(a)gmail.com>wrote: > with the new commands: cmd+b+N > Actually, it is even more complicated. If you are outside Nautilus, say Workspace, it is cmd+shift+n. If you are inside Nautilus it is cmd+b+shift+n I like the new shortcuts but for me this one was always more difficult than a fatality in mortal combat. > you also can choose the old keybiindings (in settings), but you will lose > all the power of the new ones :) > > Esteban > > > On Mar 13, 2013, at 11:36 AM, Bernat Romagosa < > tibabenfortlapalanca(a)gmail.com> wrote: > > > Hi list, > > > > How does one get the references to a class in Nautilus? In RB it used to > be control+N, now I can't find it anywhere, not even in the context menus... > > > > Thanks! > > > > Bernat. > > > > -- > > Bernat Romagosa. > > > -- Mariano http://marianopeck.wordpress.com

March 13, 2013

Changing mouse position from Pharo.

by Santiago Bragagnolo

Hi all! I'm doing a bizarre experiment where i need to change the position of the mouse to a fixed point (like make the mouse pointer to jump from where it is to a button). Does anyone have a clue about how to? Thanks in advance! Santiago

March 13, 2013