August 2017 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] eventual crashes pharo vm
by henry Aug. 13, 2017

Aug. 13, 2017

Re-adding the list in case others were interested. - HH > -------- Original Message -------- > Subject: Re: [Pharo-dev] eventual crashes pharo vm > Local Time: August 13, 2017 3:59 PM > UTC Time: August 13, 2017 7:59 PM > From: henry(a)callistohouse.club > To: Stephane Ducasse <stepharo.self(a)gmail.com> > > Stef, please see version 4 and the test in RefIdentityTest. > > - HH > >> -------- Original Message -------- >> Subject: Re: [Pharo-dev] eventual crashes pharo vm >> Local Time: August 13, 2017 3:09 PM >> UTC Time: August 13, 2017 7:09 PM >> From: stepharo.self(a)gmail.com >> To: henry <henry(a)callistohouse.club> >> >> Does he do it systematically? >> I was checking if they extend blockcontext or others. >> Because it would be really nice. >> >> Stef >> >> On Sun, Aug 13, 2017 at 9:06 PM, henry <henry(a)callistohouse.club> wrote: >>> Sorry, loading works fine. It segfaults on Ubuntu 32-bit when I run the test >>> cases. >>> >>> - HH >>> >>> >>> -------- Original Message -------- >>> Subject: Re: [Pharo-dev] eventual crashes pharo vm >>> Local Time: August 13, 2017 2:58 PM >>> UTC Time: August 13, 2017 6:58 PM >>> From: stepharo.self(a)gmail.com >>> To: henry <henry(a)callistohouse.club>, Pharo Development List >>> <pharo-dev(a)lists.pharo.org> >>> >>> We have some instability with the VM. Now can you tell us more how it "blew >>> up"? >>> I browsed the code and nothing special jump to my eyes. >>> >>> Stef >>> >>> On Sun, Aug 13, 2017 at 2:08 PM, henry <henry(a)callistohouse.club> wrote: >>>> Hi all. I was testing with this eventual_test package and it blows up the >>>> pharo 6.1 vm. I"d welcome pointers >>>> >>>> http://www.squeaksource.com/TurquoiseTesting.html >>>> >>>> - HH >>>> >>>> >>> >>>

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Re: [Pharo-dev] Anybody using Orca Smalltalk to JavaScript?
by Stephan Eggermont Aug. 13, 2017

Aug. 13, 2017

Hi Frank, It must be very frustrating to see so many possibly interesting projects that are so difficult to get started with, being it because of lack of development and migration to the latest versions, or because of lack of documentation. It is a feeling I, and no doubt a lot of other smalltalkers, share. Our open source community consist of people spending a lot of their time on Pharo. A few of them are paid to do so, some more make it their bachelor, master or PhD project, and for even more it is just a hobby or side project. They all have different objectives with their projects, and different constraints. To get good results with our community, effective communications is essential. That allows us to develop multiple projects in a way that creates synergy, and a coherent whole. I find a crucial element of effective communication is to build up a connection, so others are able to hear your message. Your first message in this thread is excellent. Telling people they are not professional, and do a bad job, without knowing about the context in which the code was produced, is unlikely to lead to effective communications. People who feel attacked are no longer open to your message, irrespective of the contents. Effective communications has also nothing to do with PC or 'truth', and especially not the absolute and blaming kind. Posing opinions as truths looks less than helpful to me. I find clearly separating facts, feelings, needs, and strategies to fulfill those needs more effective. Creating documentation takes time and effort. That needs to be balanced against other priorities. You might not like the priorities others set, but you are not paying (in money nor effort). Also, we can only start at the position we are now in, no matter how much we want to be somewhere else. This is open source, so please let us know where you want to contribute so we can help you getting started. Stephan

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PharoDays17: Bloc video - displaying metrics while prototyping
by Ben Coman Aug. 13, 2017

Aug. 13, 2017

I was watching PharoDays17: Bloc video and @53:15 there was a question due to offset being negative... https://youtu.be/ikzkzfz0zAA?t=3197 ...and I had a random idea (so not necessarily practical) that since we have "metrics" as an object, I wonder if a built in feature to draw these metrics on the canvas - kind of a developer guidelines to be used temporarily during prototyping. Something like... metrics red drawOn: aCanvas which would be commented out of production code. Now what I'm really interested in is a zoomable image window, preferably using the mouse wheel. Any chance such example if available somewhere? cheers -ben

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Orca versus PharoJS
by Frank Berger Software Aug. 13, 2017

Aug. 13, 2017

@Serge Merci beaucoup for the recommendation but I had looked at the PharoJS page a few times before and I had not touched it, simply because it's the usual thing that there is absolutely no meaningful information, description, features list etc available. The slides don't really tell anything either and the FAQ mainly tells where to get cups and shirts (ok that was nasty). There are so many merely academic pseudo-solutions especially in the Squeak and Pharo area, most of which have never really made it to production state, that over the years I have become extremely sceptical. It's a great pity in my eyes, because there are definitely many very bright people engaged there and here. Unfortunately, many if not most Smalltalkers are very far away in their perception and thinking from the end-users. The Orca docs are just the total opposite, they are very detailed, extremely professional and very convincing. But I don't know yet about the code behind and because of that I will now give PharoJS a try and look at it.

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Is there a portable way to check if a string is a block?
by Mariano Martinez Peck Aug. 13, 2017

Aug. 13, 2017

Hi guys, Is there a portable (that would work in GemStone too) and safe way to know if a String would be a block? I must support this kind of strings: 'singleString' -> false 'multi string' -> false ' [:a | 42]' -> true ' '' '' [:a | 42]' -> true '[:a | 42]' -> true ' "a commet" [:a | 42]' -> true ' WhateverClass someVeryBadHackishMethod. [:a | 42]' -> true I need to identify whether the string is a closure or not. And ideally, I don't want to do an #evaluate: because I don't want any left hand code to be executed. I tried with #parse: why I am having problems. Any ideas? Thanks in advance -- Mariano http://marianopeck.wordpress.com

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[ann] moldable editor - syntax highlighting ... with a twist
by Tudor Girba Aug. 12, 2017

Aug. 12, 2017

Hi, After another intense week, we are happy to announce that the Brick editor now supports some advanced syntax highlighting. To put it in perspective, let us take a look at one screenshot showing an inspector presentation containing a Brick editor opened on a Pillar file that includes some text, a code snippet and a reference to a picture: This shows both that we style the text based on the Pillar grammar, but also that we can style Smalltalk code (in fact, we have two nested stylers here). But, the more interesting thing is that below the picture reference, we get to see the actual picture (which happens to be another inspector screenshot). In fact, this picture is actually just another text attribute (we call it an adornment) that can be dynamically added to any text elements. This opens up a whole lot of expression power and it is all easily compose-able. This is another reason why we say that this editor is moldable and you should expect new applications making use of this moldability and combining it with the liveliness of Pharo. The latest Brick code is loadable through: Metacello new baseline: 'Brick'; repository: 'github://pharo-graphics/Brick/src'; load: #development. If you want to play with Pillar, load the following extra code and just inspect a Pillar file: Metacello new smalltalkhubUser: 'Pier' project: 'Pillar'; configuration: 'Pillar'; version: #development; load. ((IceRepository registry detect: [ :each | each name = 'Brick' ]) packageNamed: 'Brick-Editor-Pillar') loadLatest. One other thing to mention is performance. What Alex (Syrel) managed to do is quite remarkable. To see the impact in practice, try editing the largest method in Pharo (UnicodeDefinitions class >> #data) in both the built-in editor and in the Brick editor by inspecting: BrTextEditor onMethod: UnicodeDefinitions class >> #data There are still issues left to deal with and we will focus on them in the following weeks. But, we can safely say that the most important challenges are now behind us and that the design of the editor code is stable and robust. Please do let us know what you think. Cheers, The feenk team -- www.tudorgirba.com www.feenk.com "If you interrupt the barber while he is cutting your hair, you will end up with a messy haircut."

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recent slowdown of files.pharo.org and smalltalkhub
by Peter Uhnak Aug. 12, 2017

Aug. 12, 2017

Hi, does anyone know what is the reason for the recent slowdown of downloading (latest) images from files.pharo.org? I had travis builds timeout on this (downloading images for 10+ minutes, etc.), and was several times unable to download new images even locally. Thanks, Peter

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Re: [Pharo-dev] [Pharo-users] including Pillar in Pharo image by default
by Esteban Lorenzano Aug. 12, 2017

Aug. 12, 2017

and btw, this kind of threads belongs to pharo-dev, not to pharo-users :) Esteban > On 12 Aug 2017, at 16:35, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > >> On 12 Aug 2017, at 12:46, Tudor Girba <tudor(a)tudorgirba.com> wrote: >> >> Hi, >> >> I would very much like this path. What would constitute tiny? > > no idea, we need to think on it :) > but I see no point in create a new (even small) parser/scanner each time we need one. At the end you have several small parsers that repeat always same process when PetitParser is good for most of our problems (and if you need to improve it. you can always load PP compiler, etc.). > > Esteban > >> >> Cheers, >> Doru >> >> >>> On Aug 11, 2017, at 9:10 PM, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: >>> >>> hi, >>> >>>> On 11 Aug 2017, at 18:57, Cyril Ferlicot D. <cyril.ferlicot(a)gmail.com> wrote: >>>> >>>> Another step would be to get a minimal parser not relying on >>>> PetitParser. >>> >>> Letâs think differently: why not to include a tiny PetitParser? >>> Then we can think on: >>> >>> - pillar sintax (better than just a restricted version) >>> - simplify other âsmall parsersâ that are already on the image. >>> - we provide a tool to o cool stuff (instead relying as always in regexp, etc.) >>> >>> cheers, >>> Esteban >> >> -- >> www.tudorgirba.com >> www.feenk.com >> >> "Beauty is where we see it." >> >> >> >> >> >

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Launcher Error w Pharo 7
by Sean P. DeNigris Aug. 12, 2017

Aug. 12, 2017

I just downloaded Launcher for Mac via the CI. I created a Pharo 7 image and launched it. The following error came up: "Error: External module not found" from libgit2_init. I assume it's because libgit2 is not installed on my system. If that's right, how do I set it up e.g. What's the best way to get it? Does it have to be in a certain location? etc, etc. Thanks ----- Cheers, Sean -- View this message in context: http://forum.world.st/Launcher-Error-w-Pharo-7-tp4959777.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

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[Ann] libssh2 binding for Pharo
by Denis Kudriashov Aug. 12, 2017

Aug. 12, 2017

Hi I just want share my little experiments with libssh2. I think somebody can be interested with it and maybe will improve what I did which is now in very raw and initial state. Libssh2 library is now distributed with Pharo. And it was very enticing to try it from Pharo. Another reason behind it is the idea to make secure transport for Seamless and related remote tools. So I wrapped several functions in libssh2 library. And now I am able to send data to server using secure ssh channel. Also I can execute shell commands on remote server from playground. Look for details on github https://github.com/dionisiydk/libssh2-pharo-bindings. Best regards, Denis

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