- Pharo-users - lists.pharo.org

Updating a P7 image
by nacho April 17, 2018

April 17, 2018

Hi, Sorry to ask this potentially stupid question I'm currently using P6.1, but started to take a look at P7. I've noticed that "Software Update" disappeared from the main menu. What is the correct way of updating the P7 image now? Thanks in advance Nacho ----- Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Re: [Pharo-users] UTF-8 encoding
by Sven Van Caekenberghe April 16, 2018

April 16, 2018

> On 16 Apr 2018, at 17:06, Benoit St-Jean via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Benoit St-Jean <bstjean(a)yahoo.com> > Subject: UTF-8 encoding > Date: 16 April 2018 at 17:06:28 GMT+2 > To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > Reply-To: Benoit St-Jean <bstjean(a)yahoo.com> > > > Regarding the problems I have with my firstname and file paths and utf-8 encoding, I found something weird in the UTF-8 encoding. In fact, to be more precise, I found something strange when converting a String to a ByteArray (which UTF-8 encoders convert from) > > If I look at the example in the comment of ByteArray>>utf8Decoded, 'Les Ã©lÃ¨ves franÃ§ais' is encoded as: > > #[76 101 115 32 195 169 108 195 168 118 101 115 32 102 114 97 110 195 167 97 105 115] > > NOW, if I take that very same string, 'Les Ã©lÃ¨ves franÃ§ais' , and convert it to a ByteArray, I get : > 'Les Ã©lÃ¨ves franÃ§ais' asByteArray printString. You cannot do that, that is using a null encoding, which is almost always wrong. Please read (the first part) of https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… carefully. > #[76 101 115 32 233 108 232 118 101 115 32 102 114 97 110 231 97 105 115] > > The 2 don't match! > > By the way, this problem exists on Pharo 5.1, 6.1 and 7.1 (on Windows 10 ) > > Can anyone confirm/infirm on another platform to see if this is Windows-specific? This behaviour is not-windows specific, it is like that on all platforms, and it is correct ;-) > ----------------- > BenoÃ®t St-Jean > Yahoo! Messenger: bstjean > Twitter: @BenLeChialeux > Pinterest: benoitstjean > Instagram: Chef_Benito > IRC: lamneth > Blogue: endormitoire.wordpress.com > "A standpoint is an intellectual horizon of radius zero". (A. Einstein) > >

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Re: [Pharo-users] Where do we go now ?
by Hilaire April 16, 2018

April 16, 2018

Sometime Pharo frustrate me a lot, I felt it too in the message from Benoit, in the other hand its community is very kind and always helpful. So it is not about blaming people. In my opinion, there are too much things pushed at the same time in Pharo. You can't push too much things into the box, then when people complain about it to be overfull and bugged request them to fix it, I don't think it can work that way, at this scale of changes. In the other, this is not really what happen here, I very likely exaggerate this trait but you get the idea. For example, I developed DrGeo for several years on P3. Why sticking to P3? It gave me the opportunity to fine craft DrGeo to be stable and predictable in the way it behaves to its end users, and a lot of releases occurred. When I started to look at porting to newer image last June, I realizedÂ DrGeo will become unstable and oversized, so can of turning from A+ grade to a D- grade, just by the magic of porting it. My plan was to port it during the summer to get it ready end of August to deploy in local schools, it does not happen. And I can write it: it is s-u-p-e-rÂ f-r-u-s-t-r-a-t-i-n-g. Is it normal when porting code? I don't know, I am a casual developer, but it makes developing well crafted and reliable Pharo application a bit expensive to my taste. To such a scale that I started to evaluate alternative to Pharo as the underneath system, idea I finally gave up after several weeks of evaluations. All in all I still have this felling Pharo is not developer friendly, I fell DrGeo is not secure there. See when porting to newer image, I end up using P7-32bits alpha on Linux because it was the most comfortable situation comparing to P5/P6/P6.1, is it not strange? In the other hand this struggle occurs at image change. Ok, may be it is a pattern specific to Smalltalk. Is it the case with commercial Smalltalk vendors? Hilaire -- Dr. Geo http://drgeo.eu

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Some random musings
by Serge Stinckwich April 16, 2018

April 16, 2018

Hi Pharoers, some random musings about Random numbers :-) In the context of the CORMAS project: http://cormas.cirad.fr/indexeng.htm I would like to propose an API for manipulating random numbers to users who are not developers but modelers of complex systems. In CORMAS, people need to generate a lot of random numbers for simulation for exemple. For example, you can do: Cormas randomFloatFrom: -4.1 to: 2.5 âAt the moment, there is no Pharo API to generate with a one-liner a random float number between two values for example. You can do this for integers: 10 atRandom to generate an integer between 1 to 10. There is atRandom defined on Interval, so can you say : (2.3 to: 4.5) atRandom but it will not generate a random float numbers between 2.3 and 4.5 but numbers like: 2.3, 3.3 or 4.3. because Interval are considered as a Collection. âAny comments about that ? How we can enhance the situation ?â Any interest to introduce a method to produce random float numbers in an interval in Pharo ? âThank youâ -- Serge Stinckwich UMI UMMISCO 209 (SU/IRD/UY1) "Programs must be written for people to read, and only incidentally for machines to execute."http://www.doesnotunderstand.org/

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In P7 scrpt variable to tmp when in debugger
by Hilaire April 16, 2018

April 16, 2018

Hi, When an executed script throws an error, in the debugger the script lost its variable names and the code is not exactly the same. Any idea why? See screenshot Thanks Hilaire -- Dr. Geo http://drgeo.eu

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Recover question at startup
by Hilaire April 16, 2018

April 16, 2018

Hi, When I build DrGeo app against P7, then test it on a *different* computer used to build it, I have this dialog message at start up: "Its seems your last Pharo session existed without saving some code. Do you want to recover it?" As far as I understand it is related to Epicea, as I don't I need it in appication built, what is the way to properly unactivate it? Can it be uninstalled may be? Hilaire -- Dr. Geo http://drgeo.eu

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Re: [Pharo-users] Pharo Launcher
by phil＠highoctane.be April 15, 2018

April 15, 2018

Go to http://files.pharo.org/pharo-launcher/bleedingEdge/ Install using the MSI, the laucher should go into %APPDATA% and images/vms to %DOCUMENTS%/Pharo/... This is the observed behavior of that new version. Older versions worked differently on Windows 10. Best, Phil On Mon, Apr 16, 2018 at 12:02 AM, Benoit St-Jean via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > > > ---------- Forwarded message ---------- > From: Benoit St-Jean <bstjean(a)yahoo.com> > To: Ben Coman <btc(a)openinworld.com> > Cc: Any question about pharo is welcome <pharo-users(a)lists.pharo.org>, > Esteban Lorenzano <estebanlm(a)gmail.com> > Bcc: > Date: Sun, 15 Apr 2018 22:02:35 +0000 (UTC) > Subject: Re: Pharo Launcher > "What path did you install to?" > > > The installer put it in: > > C:\Users\BenoÃ®t St-Jean\AppData\Local\Programs\Pharo\BCPharoLauncher> > > > ----------------- > BenoÃ®t St-Jean > Yahoo! Messenger: bstjean > Twitter: @BenLeChialeux > Pinterest: benoitstjean > Instagram: Chef_Benito > IRC: lamneth > Blogue: endormitoire.wordpress.com > "A standpoint is an intellectual horizon of radius zero". (A. Einstein) > >

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Re: [Pharo-users] Pharo Launcher
by Hilaire April 15, 2018

April 15, 2018

Can you make a search for your PharoDebug.log, because I can see, at least on P7 and Linux, this file is not always located nearby the image but at the user root directory. Hilaire Le 15/04/2018 Ã 20:52, Benoit St-Jean via Pharo-users a Ã©critÂ : > Downloaded it.Â Installed it.Â Started it.Â Selected an image.Â Bam.Â > The app vanished. > > Also tried on a > brand-new-and-fresh-Windows-10-machine-with-nothing-previously-installed > and same thing. > > The app doesn't even show in the task manager. > > And no error file was created. > -- Dr. Geo http://drgeo.eu

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Re: [Pharo-users] Where do we go now ?
by Ben Coman April 15, 2018

April 15, 2018

On 13 April 2018 at 17:49, Benoit St-Jean via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > > > ---------- Forwarded message ---------- > From: Benoit St-Jean <bstjean(a)yahoo.com> > To: Esteban Lorenzano <estebanlm(a)gmail.com> > Cc: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > Bcc: > Date: Fri, 13 Apr 2018 09:49:15 +0000 (UTC) > Subject: Re: [Pharo-users] Where do we go now ? > For those interested. > > Created the issues 21686, 21693, 21695, 21696. > > And more to come... > Thanks for those. I don't much time right to devote, but managed to knock one off. And I learn't something new. I'd not known there was a setting for screen background. The other ones seem related to a problem dealing with user home folders containing non-ascii characters. Currently this seems only to affect a small number of people, but is a show stopper for them, and the numbers will grow with our hoped for growing popularity. As a work around, in the PharoLauncher settings can you set the directories like C:\PharoLauncher\images C:\PharoLaucnher\vms and report if that helps. Note, I bumped into an issue changing that setting myself recently where it tries to migrate the existing images from the old to the new folder, causing a catch-22 when your trying to do that to work around other problems. To work around that, I had to scroll down the debug stack to find where the migration was iterating through the image folders, and short circuit that with "Return entered value" from the context menu. Any value will do when the return value is not used. good luck. @PharoLauncher maintainers, can the change in this setting be made to succeed even if the migration fails. (I need to run right now) cheers -ben

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Re: [Pharo-users] Pharo Launcher
by Marten Feldtmann April 15, 2018

April 15, 2018

After a long time I wanted to have a look at the current Pharo situation. I just downloaded the Linux 64bit version of Pharo from the web site: -> I opened "pharo" (via a double click on the pharo application) and got a list of possible templates I could load. -> I selected Pharo 6.1 template, created an image and wanted to start that image - the initial application disappeared - but nothing happened after that. If I start the initial pharo app from a shell by hand and I want to start the selected image it seems to work. My system: Linux Mint 18.1, 64 bit -- Marten Feldtmann

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