September 2016 - Pharo-users

Pharo users count / estimate ?
by Johan Fabry Sept. 15, 2016

Sept. 15, 2016

Hi all, for some silly report that I need to write I wanted to add an estimate of how many people worldwide use Pharo. I tried to find number of downloads of e.g. Pharo 5 to use that as a basis for estimation but I could not find this info online. Does the Pharo team have any usable statistics that can be shared ? TIA -- Does this mail seem too brief? Sorry for that, I donât mean to be rude! Please see http://emailcharter.org . Johan Fabry - http://pleiad.cl/~jfabry PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile

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trimRight: problem
by Brad Selfridge Sept. 14, 2016

Sept. 14, 2016

I have a string that has an ending period (example - 'This is a string.'). I want to trim the trailing period off of the string. I've tried using: 'This is a string.' trimRight: [ :ea | ea = $. ] But, the period is not trimmed. Is there a way to do this without me having to extend the String class? ----- Brad Selfridge -- View this message in context: http://forum.world.st/trimRight-problem-tp4915603.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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ZÃ¼rich Smalltalkers' Meetup November 8th, 2016?
by jtuchel＠objektfabrik.de Sept. 14, 2016

Sept. 14, 2016

Dear Smalltalkers in the ZÃ¼rich Area, it's probably time to get together again. It's been too much fun the last few times to just miss this opportunity. So I suggest November 8, 2016 as the date for our next meetup. The Steinfels has proven to be a suitable place, but if anybody has a better idea, let me know. If you are interested, please send me a note and I'll keep you updated on when, how, what and who. Hope to meet as many old and new Smalltalk enthusiasts and wannabes as possible! Joachim

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Problem cleaning up image
by Vitor Medina Cruz Sept. 14, 2016

Sept. 14, 2016

Hello, Isn't cleanup the headless image working right now? I know it has some problems, but I tried to: curl get.pharo.org | bash ./pharo Pharo.image clean --production It runs for hours and don't complete. Last time I leave it for about 5 hours before I cancelled. Regards, Vitor

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Re: [Pharo-users] Seaside not installing
by stepharo Sept. 13, 2016

Sept. 13, 2016

thanks for the alarm and tx esteban for the fix. Le 13/9/16 Ã 08:58, Hersh Krishna via Pharo-users a Ã©crit :

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Re: [Pharo-users] Seaside not installing
by Ben Coman Sept. 13, 2016

Sept. 13, 2016

On Tue, Sep 13, 2016 at 10:09 AM, Hersh Krishna via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > ---------- Forwarded message ---------- > From: Hersh Krishna <hershkrishna(a)protonmail.ch> > To: pharo-users(a)lists.pharo.org > Cc: > Date: Mon, 12 Sep 2016 19:05:06 -0700 (PDT) > Subject: Seaside not installing > When I try to install seaside via the Catalog Browser I get an error > "MetacelloNameNotDefinedError", which says that a crypto library is missing. > Is this my fault or is the build just broken right now? Hi Hersh, Which version of Pharo are you on? cheers -ben

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Seaside not installing
by Hersh Krishna Sept. 13, 2016

Sept. 13, 2016

When I try to install seaside via the Catalog Browser I get an error "MetacelloNameNotDefinedError", which says that a crypto library is missing. Is this my fault or is the build just broken right now? -- View this message in context: http://forum.world.st/Seaside-not-installing-tp4915282.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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SPLASH'16 Amsterdam: Call For Participation
by Tijs van der Storm Sept. 12, 2016

Sept. 12, 2016

################################################# ACM Conference on Systems, Programming, Languages, and Applications: Software for Humanity (SPLASH'16) ################################################# Amsterdam, The Netherlands Sun 30th October - Fri 4th November , 2016 http://2016.splashcon.org https://twitter.com/splashcon https://www.facebook.com/SPLASHCon/ ** REGISTRATION ** 30 September 2016 (Early Deadline) Contact: info(a)splashcon.org http://2016.splashcon.org/attending/registration # What's happening at SPLASH? ## Keynotes - Benjamin Pierce (SPLASH) The Science of Deep Specification - Andy Ko (SPLASH) A Human View of Programming Languages - Martin Odersky (SPLASH) - Guy Steele Jr. (SPLASH-I) - Robby Findler (SLE) Redex: Lightweight Semantics Engineering - Tiark Rompf (GPCE) Lightweight Modular Staging: Generate all the things! - Simon Peyton Jones (SPLASH-I/E) The dream of a lifetime: shaping how our children learn computing - Laurence Tratt (Scala) ## Workshop Keynotes - Andrew Black (NOOL) - Alan Blackwell (PLATEAU) - Alastair Donald (WODA) - Sam Guyer (WODA) - Felienne Hermans (DSLDI) - Ben Liblit (WODA) - Benjamin Livshits (WODA) - Ivano Malavolta (Mobile!) - Yannis Smaragdakis (WODA) - Frank Tip (WODA) - Markus Voelter (ITSLE) ** Conference Program ** http://2016.splashcon.org/program/program-splash2015 ** SPLASH-I Track ** SPLASH-I is a series of invited and solicited talks that address topics relevant to the SPLASH community. Speakers are world-class experts in their field, selected and invited by the organizers. The SPLASH-I talks series is held in parallel with the rest of SPLASH during the week days. Talks are open to all attendees. A selection of confirmed talks: - Edwin Brady Type-driven Development in Idris - JÃ¼rgen Cito Using Docker Containers to Improve Reproducibility in PL/SE Research - Yvonne Coady Exploratory Analysis in Virtual Reality: The New Frontier - Adam Chlipala Rapid Development of Web Applications with Typed Metaprogramming in Ur/Web - Tudo Girba Software Environmentalism - Brian Harvey Snap! Scheme Disguised as Scratch - Lennart Kats Responsive Language Tooling For Cloud-based IDEs - Ralf Laemmel The basic skill set of software language engineering - Crista Lopes Simulating Cities: The Spacetime Framework - Heather Miller Language Support for Distributed Systems - Mark Miller & Bill Tulloh The elements of decision alignment: Large programs as complex organizations - Boaz Rosenan & David Lorenz Define Your App, Donât Implement It: Building a Scalable Social Network in 45 minutes - Emmanuel Schanzer Bootstrap - Chris Seaton Truffle and Graal: Fast Programming Languages With Modest Effort - Emma SÃ¶derbergh From Tricorder to Tricium: Useful Static Analysis and the Importance of Workflow Integration - Emma Tosch Designing and Debugging Surveys with SurveyMan - Todd Veldhuizen Fast Datalog - Markus VÃ¶lter How Domain Requirements Shape Languages - Jos Warmer Making Mendix Meta Model Driven - Andy Zaidman Fact or fiction? What software analytics can do for us (developers and researchers) More information here: http://2016.splashcon.org/track/splash2016-splash-i ** Research tracks - OOPSLA http://2016.splashcon.org/track/splash-2016-oopsla#event-overview - Onward! http://2016.onward-conference.org/track/onward-2016-papers#event-overview - Onward! Essays http://2016.onward-conference.org/track/onward2016-essays#program - Software Language Engineering (SLE) http://conf.researchr.org/track/sle-2016/sle-2016-papers#event-overview - Generative Programming: Concepts & Experiences (GPCE) http://conf.researchr.org/track/gpce-2016/gpce-2016-papers#event-overview - Dynamic Languages Symposium (DLS) http://conf.researchr.org/track/dls-2016/dls-2016-papers#event-overview - Scala Symposium http://conf.researchr.org/track/scala-2016/scala-2016#event-overview ** Other Events - Doctoral Symposium http://2016.splashcon.org/track/splash-2016-ds#event-overview - Programming Language Mentoring Workshop (PLMW) http://2016.splashcon.org/track/splash-2016-plmw - Student Research Competition (SRC) http://2016.splashcon.org/track/splash-2016-src - Posters http://2016.splashcon.org/track/splash-2016-posters#event-overview ** Workshops SPLASH'16 is hosting a record number of 15 workshops: - AGERE! Programming based on Actors, Agents, and Decentralized Control http://2016.splashcon.org/track/agere2016 - DSLDI: Domain-Specific Language Design and Implementation http://2016.splashcon.org/track/dsldi2016 - DSM: Domain-Specific Modeling http://2016.splashcon.org/track/dsm2016 - FOSD: Feature-oriented Software Development http://www.fosd.net/workshop2016 - ITSLE: Industry Track Software Language Engineering http://2016.splashcon.org/track/itsle2016 - LWC@SLE: Language Workbench Challenge http://2016.splashcon.org/track/lwc2016 - META http://2016.splashcon.org/track/meta2016 - Mobile! http://2016.splashcon.org/track/mobile2016 - NOOL: New Object-Oriented Languages http://2016.splashcon.org/track/nool2016 - PLATEAU: Evaluation and Usability of Programming Languages and Tools http://2016.splashcon.org/track/plateau2016 - Parsing@SLE http://2016.splashcon.org/track/parsing2016 - REBLS: Reactive and Event-based Languages & Systems http://2016.splashcon.org/track/rebls2016 - SA-MDE: Tutorial on MDD with Model Catalogue and Semantic Booster http://2016.splashcon.org/track/samde2016 - SEPS: Software Engineering for Parallel Systems http://2016.splashcon.org/track/seps2016 - VMIL: Virtual Machines and Intermediate Languages http://2016.splashcon.org/track/vmil2016 - WODA: Workshop on Dynamic Analysis http://2016.splashcon.org/track/woda2016 ## SPLASH'16 is kindly supported by the following organizations: - ACM: http://www.acm.org/ - SIGPLAN: http://www.sigplan.org/ - LogicBlox (Gold): http://www.logicblox.com/ - Oracle (Silver): http://www.oracle.com/index.html - TU Delft (Silver): http://tudelft.nl/ - Huawei (Bronze): http://www.huawei.com/en/ - Facebook (Bronze): https://research.facebook.com/ - IBM Research (Bronze): http://www.research.ibm.com/ - Google (Bronze): https://www.google.com - Itemis (Bronze): https://www.itemis.com/en/ - ING (Bronze): https://www.ing.nl Interested in supporting SPLASH'16? See our options here: http://2016.splashcon.org/attending/support-program.

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Spec - Display an ICON without dropping to Morphic
by Brad Selfridge Sept. 12, 2016

Sept. 12, 2016

I want to create a MessagePrompter widget that will display either and error, warning, or information message. I want to display a different icon associated with each message type. Is there a way to do this in Spec without having to drop down into Morphic? I do NOT want to have to learn Morphic. It's taking me enough time trying work my way through Spec. ----- Brad Selfridge -- View this message in context: http://forum.world.st/Spec-Display-an-ICON-without-dropping-to-Morphic-tp49… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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UFFI cleanup of externally allocated memory (was Re: UFFI const, unsigned, opaque-ish types)
by Ben Coman Sept. 12, 2016

Sept. 12, 2016

Referring to the example show_clang_version() below, cleanup is done with clang_disposeString(). How does UFFI hook into the object finalisation mechanism to call this when the object is garage collected. My searches result mostly in info on weak collections and its not clear how this translates to FFI. Some detail on this would be useful for the FFI manual . cheers -ben On Thu, Sep 1, 2016 at 12:59 AM, Ben Coman <btc(a)openinworld.com> wrote: > For this definition pulled from a library header file... > typedef struct { > const void *data; > unsigned private_flags; > } CXString; > > which is used with a helper function to get a usable string like... > void show_clang_version(void) > { CXString version = clang_getClangVersion(); > printf("%s\n", clang_getCString(version)); > clang_disposeString(version); > } > > ==> 'Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on > LLVM 3.5.0)' > > > So I defined... > FFIExternalStructure subclass: #CXString > instanceVariableNames: '' > classVariableNames: '' > package: 'LibCLang' > > and ignoring the const as advised in the manual [1], I try... > CXString class >> fieldsDesc > ^ #( > void *data; > unsigned private_flags; > ) > > but... > CXString rebuildFieldAccessors. > ==>Error: Unable to resolve external type: unsigned > > I also tried "unsigned int private_flags;" > but get the same error. Any ideas what is wrong? > > > Actually I can kind of ignore creating accessors since this is like an > opaque type where I'm not expected to access its internals, but I do > need CXString as a return value like this... > > LibCLang class >> getClangVersion > ^ self ffiCall: #( CXString clang_getClangVersion () ) module: LibCLang > > which needs to be passed to this function to get a workable string.... > > LibCLang class >> getString: aCXString > ^ self ffiCall: #( String clang_getCString ( CXString aCXString ) > ) module: LibCLang > > However this doesn't work if I use FFIOpaqueObject instead of > FFIExternalStructure. > I guess the difference is opaque objects are normally pointers to a > type, whereas here that pointer is contained in a struct. > > What I've done at the moment to push ahead with experimenting is avoid > needing to generate accessors by adding... > > CXString >> printOn: asStream > self getString printOn: aStream > > CXString >> getString > ^ self ffiCall: #( String clang_getCString ( CXString self ) ) > module: LibCLang > > such that... > LibCLang getClangVersion "<Print It>" > ==> 'Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based > on LLVM 3.5.0)' > > > Is there a better way to approach this? > > cheers -ben > > btw, this is in Pharo 5 (Moose 6). > > [1] https://ci.inria.fr/pharo-contribution/view/Books/job/PharoBookWorkInProgre…

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