Re: [Pharo-users] Packaging Pharo for many distributions at once
Le 24 sept. 2014 à 18:51, Damien Cassou a écrit : On Wed, Sep 24, 2014 at 12:47 PM, Thierry Goubier thierry.goub...@gmail.com wrote: All non-native package managers have that issue. nix included I know ... That's why native packages are still interesting even if it's difficult to manage various package descriptions and build. smime.p7s Description: S/MIME cryptographic signature
[Pharo-users] What to use?
If one is intersted in graphics of diverse functions? E.g plotting x^2,x^3 and the like. I checked the DrGeo stuff but that's geometry and not just analysis of functions and the like? Does there exist something for that? Regards Friedrich
Re: [Pharo-users] What to use?
probably GraphET https://www.facebook.com/media/set/?set=a.566523986767536.1073741839.340543479365589type=3 On 25 Sep 2014, at 09:08, Friedrich Dominicus fr...@q-software-solutions.de wrote: If one is intersted in graphics of diverse functions? E.g plotting x^2,x^3 and the like. I checked the DrGeo stuff but that's geometry and not just analysis of functions and the like? Does there exist something for that? Regards Friedrich
Re: [Pharo-users] What to use?
Esteban Lorenzano esteba...@gmail.com writes: probably GraphET https://www.facebook.com/media/set/?set=a.566523986767536.1073741839.340543479365589type=3 Thanks, that seems to be it Regards Friedrich
Re: [Pharo-users] What to use?
There is a new Charter builder now. It’s not very stable yet as far as I can tell, but it’s the future of charts in Roassal https://dl.dropboxusercontent.com/u/31543901/AgileVisualization/Charter/0202-Charter.html https://dl.dropboxusercontent.com/u/31543901/AgileVisualization/Charter/0202-Charter.html Uko On 25 Sep 2014, at 09:19, Friedrich Dominicus fr...@q-software-solutions.de wrote: Esteban Lorenzano esteba...@gmail.com writes: probably GraphET https://www.facebook.com/media/set/?set=a.566523986767536.1073741839.340543479365589type=3 Thanks, that seems to be it Regards Friedrich
[Pharo-users] Threaded callbacks with FFI
Hi, I am calling C from pharo with a callback, and it seems the callback is called in another thread. I can’t wrap the block in a process, because the return will be wrong, how can I do ??? Annick
[Pharo-users] Machine learning in Pharo?
Hi all, I'm playing with weka [1] for classifying data using data mining/machine learning. I'm really new on this field so I want to give you a concrete example of my use case to make it clear: I have elements that can be classified as true or false. In a training phase, I set up a bayesian network with elements that I manually classified. Then, I can use such network for predicting the classification of new elements. --- my question is: Do we have a package for replacing weka-in-my-use-case in Pharo? It doesn't need to be exactly a bayesian network, it could be simpler. I looked a bit in Moose-Algos and in BioSmalltalk but I think they don't have what I need. I would appreciate any help. Cheers. Martín [1]: http://www.cs.waikato.ac.nz/ml/weka/
Re: [Pharo-users] Threaded callbacks with FFI
Le 25 sept. 2014 11:32, Annick Fron l...@afceurope.com a écrit : Hi, I am calling C from pharo with a callback, and it seems the callback is called in another thread. I can’t wrap the block in a process, because the return will be wrong, how can I do ??? Can you send us sample code ? Annick
[Pharo-users] Loading PetitParser loads a hell of a lot of things... is there a terser version?
I am loading PetitParser in my image but it takes a lng time to load and below is what I see in my Jenkins console. Build for that step starts at 13:48:51 and ends at 14:03:15. Phew! Also a couple errors in loading examples. What is recommended to use to not have all of this? I just need the parser and tools to browse the grammars. [34m13:48:51 : -- loadPetitParser step starting Loading 1.6-baseline of ConfigurationOfPetitParser... Fetched - ConfigurationOfGlamour-AndreiChis.158 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Loaded - ConfigurationOfGlamour-AndreiChis.158 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- /var/lib/jenkins/jobs/CXP Frontend/workspace/package-cache Fetched - PetitParser-JanKurs.247 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitTests-JanKurs.59 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitAnalyzer-DiegoLont.46 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitSmalltalk-JanKurs.71 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitCSV-tg.7 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitJson-DamienCassou.8 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitMSE-AndreHora.21 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitManifestMf-tg.9 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitRegex-JanKurs.29 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitXml-JanKurs.36 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitXPath-EstebanLorenzano.7 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitIslands-JanKurs.9 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - Factorial-Language-lr.6 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Project: Glamour development [2.91-baseline] Fetched - ConfigurationOfGraphET-TudorGirba.8 --- http://smalltalkhub.com/mc/ObjectProfile/GraphET/main/ --- http://smalltalkhub.com/mc/ObjectProfile/GraphET/main/ Loaded - ConfigurationOfGraphET-TudorGirba.8 --- http://smalltalkhub.com/mc/ObjectProfile/GraphET/main/ --- /var/lib/jenkins/jobs/CXP Frontend/workspace/package-cache Fetched - ConfigurationOfRubric-AndreiChis.7 --- http://smalltalkhub.com/mc/AlainPlantec/Rubric/main/ --- http://smalltalkhub.com/mc/AlainPlantec/Rubric/main/ Loaded - ConfigurationOfRubric-AndreiChis.7 --- http://smalltalkhub.com/mc/AlainPlantec/Rubric/main/ --- /var/lib/jenkins/jobs/CXP Frontend/workspace/package-cache Fetched - ConfigurationOfRoassal-StephaneDucasse.1195 --- http://smalltalkhub.com/mc/ObjectProfile/Roassal/main/ --- http://smalltalkhub.com/mc/ObjectProfile/Roassal/main/ Loaded - ConfigurationOfRoassal-StephaneDucasse.1195 --- http://smalltalkhub.com/mc/ObjectProfile/Roassal/main/ --- /var/lib/jenkins/jobs/CXP Frontend/workspace/package-cache Fetched - Glamour-Announcements-TudorGirba.7 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Fetched - Glamour-Helpers-AndreiChis.35 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Fetched - Glamour-Core-AndreiChis.277 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Fetched - Glamour-Presentations-TudorGirba.157 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Fetched - Glamour-Browsers-TudorGirba.104 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Fetched - Glamour-Examples-StephanEggermont.284 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Project: Roassal for Glamour development [0.7-baseline] Fetched - Roassal-AlexandreBergel.759 --- http://smalltalkhub.com/mc/ObjectProfile/Roassal/main/ --- http://smalltalkhub.com/mc/ObjectProfile/Roassal/main/ Fetched - RoassalMorphic-AlexandreBergel.175 --- http://smalltalkhub.com/mc/ObjectProfile/Roassal/main/ --- http://smalltalkhub.com/mc/ObjectProfile/Roassal/main/ Fetched - RoassalExtras-AlexandreBergel.61 ---
Re: [Pharo-users] Threaded callbacks with FFI
OK I try do do that. Le 25 sept. 2014 à 12:18, p...@highoctane.be a écrit : Le 25 sept. 2014 11:32, Annick Fron l...@afceurope.com a écrit : Hi, I am calling C from pharo with a callback, and it seems the callback is called in another thread. I can’t wrap the block in a process, because the return will be wrong, how can I do ??? Can you send us sample code ? Annick
Re: [Pharo-users] Loading PetitParser loads a hell of a lot of things... is there a terser version?
Hi, The dependencies are needed for the UI. If you can live without the UI, you can load the 'Core' group from the configuration. Cheers, Doru On Thu, Sep 25, 2014 at 2:07 PM, p...@highoctane.be p...@highoctane.be wrote: I am loading PetitParser in my image but it takes a lng time to load and below is what I see in my Jenkins console. Build for that step starts at 13:48:51 and ends at 14:03:15. Phew! Also a couple errors in loading examples. What is recommended to use to not have all of this? I just need the parser and tools to browse the grammars. [34m13:48:51 : -- loadPetitParser step starting Loading 1.6-baseline of ConfigurationOfPetitParser... Fetched - ConfigurationOfGlamour-AndreiChis.158 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Loaded - ConfigurationOfGlamour-AndreiChis.158 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- /var/lib/jenkins/jobs/CXP Frontend/workspace/package-cache Fetched - PetitParser-JanKurs.247 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitTests-JanKurs.59 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitAnalyzer-DiegoLont.46 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitSmalltalk-JanKurs.71 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitCSV-tg.7 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitJson-DamienCassou.8 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitMSE-AndreHora.21 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitManifestMf-tg.9 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitRegex-JanKurs.29 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitXml-JanKurs.36 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitXPath-EstebanLorenzano.7 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - PetitIslands-JanKurs.9 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Fetched - Factorial-Language-lr.6 --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ --- http://smalltalkhub.com/mc/Moose/PetitParser/main/ Project: Glamour development [2.91-baseline] Fetched - ConfigurationOfGraphET-TudorGirba.8 --- http://smalltalkhub.com/mc/ObjectProfile/GraphET/main/ --- http://smalltalkhub.com/mc/ObjectProfile/GraphET/main/ Loaded - ConfigurationOfGraphET-TudorGirba.8 --- http://smalltalkhub.com/mc/ObjectProfile/GraphET/main/ --- /var/lib/jenkins/jobs/CXP Frontend/workspace/package-cache Fetched - ConfigurationOfRubric-AndreiChis.7 --- http://smalltalkhub.com/mc/AlainPlantec/Rubric/main/ --- http://smalltalkhub.com/mc/AlainPlantec/Rubric/main/ Loaded - ConfigurationOfRubric-AndreiChis.7 --- http://smalltalkhub.com/mc/AlainPlantec/Rubric/main/ --- /var/lib/jenkins/jobs/CXP Frontend/workspace/package-cache Fetched - ConfigurationOfRoassal-StephaneDucasse.1195 --- http://smalltalkhub.com/mc/ObjectProfile/Roassal/main/ --- http://smalltalkhub.com/mc/ObjectProfile/Roassal/main/ Loaded - ConfigurationOfRoassal-StephaneDucasse.1195 --- http://smalltalkhub.com/mc/ObjectProfile/Roassal/main/ --- /var/lib/jenkins/jobs/CXP Frontend/workspace/package-cache Fetched - Glamour-Announcements-TudorGirba.7 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Fetched - Glamour-Helpers-AndreiChis.35 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Fetched - Glamour-Core-AndreiChis.277 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Fetched - Glamour-Presentations-TudorGirba.157 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Fetched - Glamour-Browsers-TudorGirba.104 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Fetched - Glamour-Examples-StephanEggermont.284 --- http://smalltalkhub.com/mc/Moose/Glamour/main/ --- http://smalltalkhub.com/mc/Moose/Glamour/main/ Project: Roassal for Glamour development [0.7-baseline] Fetched - Roassal-AlexandreBergel.759 ---
[Pharo-users] invoking python from pharo
Hi all , I need to invoke python rutines from Pharo. I need some orientation about the best way to do it. TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonze...@softsargentina.com pdigonze...@gmail.com Cel: 5493815982714
[Pharo-users] FFI on Linux again
Hi,
I Have tried the following code on Linux , but the call breaks. Is it because
of the X11Window structure missing or else ?
Annick
testGetOurWindowLocation
self new testGetOurWindowLocation
| display ourWindow aParent anX anY aWidth aHeight aBorderWidth aDepth |
display := X11Display XOpenDisplay: nil.
ourWindow := display ourWindow.
(Alien lookup: 'XGetGeometry' inLibrary: 'X11')
primFFICallResult: nil
withArguments:
{display.
ourWindow.
(aParent := Alien new: 4).
(anX := Alien new: 4).
(anY := Alien new: 4).
(aWidth := Alien new: 4).
(aHeight := Alien new: 4).
(aBorderWidth := Alien new: 4).
(aDepth := Alien new: 4)}.
(anX unsignedLongAt: 1) inspect
Re: [Pharo-users] Ridiculous we are
On 25 Sep 2014, at 5:00 , Hilaire Fernandes hila...@drgeo.eu wrote: Le 24/09/2014 18:48, Benjamin Pollack a écrit : On Tue, 23 Sep 2014 08:51:54 -0400, Hilaire hila...@drgeo.eu wrote: Le 23/09/2014 14:09, Damien Cassou a écrit : I recently read documents about utf-8 encoding. In all of them, the author says that pathnames should be kept as is because you never know which encoding the filesystem uses. So, a filename should probably be a bytearray. yes, but a #é should be encoded in two bytes. As noted in my previous message, é could be represented as either one or two Unicode code points, and these in turn could validly be either two or three bytes in UTF-8. My gut says that $é should be U+00E9, because otherwise you should have to use two Characters ($e and $´), but you could legitimately argue otherwise as well, and at any rate, #é could definitely be either. This is likely the core of the issue you're hitting. As I understand it, #é should be encoded on two bytes and only two byte. Only ASCII is coded as 1 byte with UTF-8. See ref. on Wikipedia Hilaire: Benjamin is talking about which unicode normalization form é should be represented in, which is orthogonal to the encoding; http://en.wikipedia.org/wiki/Unicode_equivalence#Combining_and_precomposed_characters . So é can indeed be encoded in two different ways in utf8 (as in any other encoding), both as #[c3 a9] (encoding U+E9, Latin small letter e with acute), and as #[65 cc 81] (encoding U+65, Latin small letter e, followed by U+0301, Combining accute accent) Benjamin: Since the base path that contains the problematic character originates from a filesystem primitive, we can safely assume it's already in a canonical form*, Pharo does no automatic normalization. (that is, if the path would have been e + ´, the internal string would have two separate characters as well) Cheers, Henry * Only Mac OSX defines a canonical form for its paths anyways, the others don't care signature.asc Description: Message signed with OpenPGP using GPGMail
Re: [Pharo-users] Booting into Pharo!
On Sun, Sep 21, 2014 at 06:56:27PM -0400, David T. Lewis wrote:
If you are booting directly into the image, you may find it useful to also
load CommandShell/OSProcess into your image. This will let you open a
Smalltalk shell window directly within your Squeak/Pharo boot image, so
that you have access to the operating system with actually opening any
windows or terminal sessions outside of your image.
http://www.squeaksource.com/CommandShell
http://www.squeaksource.com/OSProcess
In view of ShellShock, from a PipeableOSProcess example:
| env |
env := OSProcess thisOSProcess environment copy.
env at: #SHOCKED put: '() { :;}; echo ShellShocked;'.
(PipeableOSProcess command: 'echo Nah environment: env) output
This gives the following. (Yes, this is done on an unpatched bash for demo
purposes. Everyone should patch as soon as you can.)
ShellShocked
Nah
I have a webapp that shells out to some OS command line tool. I think I have
written it such that untrustworthy web input does not taint the command line
tool's environment and input. I think. Everyone doing similar may wish to
relook at it.
David, perhaps the code is already there, but can we run OS commands without
invoking the shell?
Pierce
Re: [Pharo-users] invoking python from pharo
Pablo R. Digonzelli wrote: Hi all , I need to invoke python rutines from Pharo. I need some orientation about the best way to do it. TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonze...@softsargentina.com pdigonze...@gmail.com Cel: 5493815982714 Search the [pharo-dev] list for Ephestos by kilon. cheers -ben
Re: [Pharo-users] Glorp + NBSQLite3
On Wed, Sep 24, 2014 at 01:33:02PM -0300, Esteban A. Maringolo wrote: How does SQLite scale in terms of table size and so on? According to https://www.sqlite.org/whentouse.html: An SQLite database is limited in size to 140 terabytes (2^47 bytes, 128 tibibytes). And even if it could handle larger databases, SQLite stores the entire database in a single disk file and many filesystems limit the maximum size of files to something less than this. SQLite will normally work fine as the database backend to a website. But if you website is so busy that you are thinking of splitting the database component off onto a separate machine, then you should definitely consider using an enterprise-class client/server database engine instead of SQLite. I was surprised to know it is based on an old version of PostgreSQL according to this presentation: http://www.pgcon.org/2014/schedule/events/736.en.html That is a very interesting talk. As it says, SQLite is a replacement for fopen(), not a replacement for PostgreSQL. In the context of my writing tools and applications in Smalltalk, I'd like to enjoy SQLite's robustness, hence my interest in having/building a good Smalltalk wrapper. Pierce
Re: [Pharo-users] Ridiculous we are
On 22 Sep 2014, at 10:07 , Hilaire hila...@drgeo.eu wrote: However font path seems ok: File @ /home/hilaire/Téléchargements/DrGeo.app/Contents/Resources. Inspecting this path, it looks like 'Téléchargements' is 8 bits, but it should be utf-8, right? I think there are issue on Windows, as some user reported to me. The fun thing about plugins calling external libraries, is that you have to find out what that library does to know the right answer to what encoding char* parameters are meant to be passed... In the case of FreeType, after some digging*, it seems to me it ends up calling fopen on all platforms, which on windows... *drumroll* ... resolves to the legacy ANSI version** of the Windows file libraries. Hence, the correct encoding to use on Windows would be the locale legacy code page. It also means that, on Windows, you *cannot* load fonts from a directory whose name is not encodable in the current codepage no matter what we do in Pharo. (short of submitting a bug-fix to the FreeType project) Cheers, Henry *FT_New_Face (http://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/src/base/ftobjs.c) calls... FT_Open_Face (same) which calls... FT_Stream_New (same) which calls... FT_Stream_Open (http://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/src/base/ftsystem.c) which calls... ft_fopen (http://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/include/config/ftstdlib.h) which resolves to f_open. ** http://msdn.microsoft.com/en-us/library/yeby3zcb.aspx , don't be fooled, the Unicode support section is about contents written/read to/from file, not the path parameter. signature.asc Description: Message signed with OpenPGP using GPGMail
Re: [Pharo-users] Using themes and closing windows
Le 25/09/2014 18:37, Annick Fron a écrit : Is there a documentation how to use or write Themes ? I would like to attach some method when I close a window, how I do that ? You can register to the announcement sent by the window when closing. | s | s := SystemWindow new. s onAnnouncement: WindowClosed do: [ Transcript show: 'Closing' ]. s openAsIs Thierry
Re: [Pharo-users] FFI on Linux again
Am 25.09.2014 17:25 schrieb Annick Fron l...@afceurope.com:
Hi,
I Have tried the following code on Linux , but the call breaks. Is it
because of the X11Window structure missing or else ?
Annick
testGetOurWindowLocation
self new testGetOurWindowLocation
| display ourWindow aParent anX anY aWidth aHeight aBorderWidth aDepth
|
display := X11Display XOpenDisplay: nil.
ourWindow := display ourWindow.
(Alien lookup: 'XGetGeometry' inLibrary: 'X11')
primFFICallResult: nil
withArguments:
{display.
ourWindow.
(aParent := Alien new: 4).
(anX := Alien new: 4).
(anY := Alien new: 4).
(aWidth := Alien new: 4).
(aHeight := Alien new: 4).
(aBorderWidth := Alien new: 4).
(aDepth := Alien new: 4)}.
(anX unsignedLongAt: 1) inspect
withArguments ...
ourWindow xid
...
?
Re: [Pharo-users] Booting into Pharo!
On Sun, Sep 21, 2014 at 06:56:27PM -0400, David T. Lewis wrote:
If you are booting directly into the image, you may find it useful to
also
load CommandShell/OSProcess into your image. This will let you open a
Smalltalk shell window directly within your Squeak/Pharo boot image, so
that you have access to the operating system with actually opening any
windows or terminal sessions outside of your image.
http://www.squeaksource.com/CommandShell
http://www.squeaksource.com/OSProcess
In view of ShellShock, from a PipeableOSProcess example:
| env |
env := OSProcess thisOSProcess environment copy.
env at: #SHOCKED put: '() { :;}; echo ShellShocked;'.
(PipeableOSProcess command: 'echo Nah environment: env) output
This gives the following. (Yes, this is done on an unpatched bash for demo
purposes. Everyone should patch as soon as you can.)
ShellShocked
Nah
I have a webapp that shells out to some OS command line tool. I think I
have
written it such that untrustworthy web input does not taint the command
line
tool's environment and input. I think. Everyone doing similar may wish to
relook at it.
David, perhaps the code is already there, but can we run OS commands
without
invoking the shell?
Pierce
Yes, you can run any executable command as an external OS process. It is
usually easier to run /bin/sh as the command and let the shell do the
parsing, but you can run any program you like. And you can also do the
shell in native Smalltalk with CommandShell, although this is not a
complete simulation of a unix shell, so sometimes it is better to use the
real /bin/sh program.
Dave
Re: [Pharo-users] Booting into Pharo!
On 25 Sep 2014, at 18:27, Pierce Ng pie...@samadhiweb.com wrote:
On Sun, Sep 21, 2014 at 06:56:27PM -0400, David T. Lewis wrote:
If you are booting directly into the image, you may find it useful to also
load CommandShell/OSProcess into your image. This will let you open a
Smalltalk shell window directly within your Squeak/Pharo boot image, so
that you have access to the operating system with actually opening any
windows or terminal sessions outside of your image.
http://www.squeaksource.com/CommandShell
http://www.squeaksource.com/OSProcess
In view of ShellShock, from a PipeableOSProcess example:
| env |
env := OSProcess thisOSProcess environment copy.
env at: #SHOCKED put: '() { :;}; echo ShellShocked;'.
(PipeableOSProcess command: 'echo Nah environment: env) output
This gives the following. (Yes, this is done on an unpatched bash for demo
purposes. Everyone should patch as soon as you can.)
ShellShocked
Nah
I have a webapp that shells out to some OS command line tool. I think I have
written it such that untrustworthy web input does not taint the command line
tool's environment and input. I think. Everyone doing similar may wish to
relook at it.
It is my understanding that the attack vector is cgi-bin which turns HTTP
headers into environment variables, which are then interpreted as functions and
executable shell code. [ which is pretty heavy/scary stuff ]
If you serve HTTP directly (Zinc/Seaside), or through a proxy (apache2 or
nginx), no HTTP headers are turned into environment variables, so invoking a
sub shell is safe (unless you make some other error of course). [ anyway, that
is what I think ]
I disables all cgi[d] modules, we weren't using them anyway. [ but who knows
what will turn up ]
David, perhaps the code is already there, but can we run OS commands without
invoking the shell?
Pierce
Re: [Pharo-users] invoking python from pharo
Hi there, I promised to do this a long time ago, but since you asked it I done it now. So as Ben said I am the author of Ephestos, a communication bridge between Blender and Pharo . To go directly to the how to . Ephestos is basically a socket bridge that send via sockets strings from pharo to python that then python executes as python commands. Ephestos is made so it works inside blender but I promised Atals a spin off project that allows the same socket bridge to be used as a standalone. To use do the following. 1) Get Ephestos , you can find it and install it with the configuration browser in your image in Pharo 3 and Pharo 4. Make sure you have a recent release though because I added it recently. 2) Get pyAtlas , this is the python side , you can get it from here -- https://github.com/kilon/pyAtlas 3) in your command line cd to the pyAtlas directory and execute : python3 pyAtlas.py 4) in Pharo you can now try any python code you want for example Ephestos sendMessage: 'print(hello world)'. Ephestos sendMessage: 'x = 3'. x := Ephestos getValue: 'x'. x inspect. Ephestos sendMessage: string, basically sends the python command to be executes while getValue: sends the command and returns a value as a string. you can use string 'exit' to close the socket bridge but this part is buggy as it seems to keep the binding of the sokcet active and I have to wait to clean it up in macos to reopen the bridge. You can also use pharo syntax and python errors will trigger the pharo debugger with a title the python error itself. You can find more information about Ephestos in my gitbook that can be read here https://www.gitbook.io/book/kilon/ephestos Also I forgot to add that sendMessage can send multiline strings , so its possible to send python class definitions and other stuff, you type the string exactly as you would type python code respecting whitespaces. If you want to execute loads of lines of python code then it would be better to put your code in a python module and do Ephestos sendMessage: 'import mymodule' assuming your module is called 'mymodule' , python import basically are executions of code. If you have any questions just ask. Bare in mind this is a socket bridge so its not ideal for sending thousands of messages per second and you may run into the occasional bug or two which I will fix if you report it. Nonetheless it should allow you to execute any kind of code and not just call python functions or python methods. On Thu, Sep 25, 2014 at 7:40 PM, Ben Coman b...@openinworld.com wrote: Pablo R. Digonzelli wrote: Hi all , I need to invoke python rutines from Pharo. I need some orientation about the best way to do it. TIA -- *Ing. Pablo Digonzelli* Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonze...@softsargentina.com pdigonze...@gmail.com Cel: 5493815982714 Search the [pharo-dev] list for Ephestos by kilon. cheers -ben
Re: [Pharo-users] invoking python from pharo
a minor correction to the previous email its python3 pyatlas.py and not python3 pyAtlas.py also I forgot to make clear that it works for pyhton 2.7 and python 3. On Thu, Sep 25, 2014 at 8:11 PM, kilon alios kilon.al...@gmail.com wrote: Hi there, I promised to do this a long time ago, but since you asked it I done it now. So as Ben said I am the author of Ephestos, a communication bridge between Blender and Pharo . To go directly to the how to . Ephestos is basically a socket bridge that send via sockets strings from pharo to python that then python executes as python commands. Ephestos is made so it works inside blender but I promised Atals a spin off project that allows the same socket bridge to be used as a standalone. To use do the following. 1) Get Ephestos , you can find it and install it with the configuration browser in your image in Pharo 3 and Pharo 4. Make sure you have a recent release though because I added it recently. 2) Get pyAtlas , this is the python side , you can get it from here -- https://github.com/kilon/pyAtlas 3) in your command line cd to the pyAtlas directory and execute : python3 pyAtlas.py 4) in Pharo you can now try any python code you want for example Ephestos sendMessage: 'print(hello world)'. Ephestos sendMessage: 'x = 3'. x := Ephestos getValue: 'x'. x inspect. Ephestos sendMessage: string, basically sends the python command to be executes while getValue: sends the command and returns a value as a string. you can use string 'exit' to close the socket bridge but this part is buggy as it seems to keep the binding of the sokcet active and I have to wait to clean it up in macos to reopen the bridge. You can also use pharo syntax and python errors will trigger the pharo debugger with a title the python error itself. You can find more information about Ephestos in my gitbook that can be read here https://www.gitbook.io/book/kilon/ephestos Also I forgot to add that sendMessage can send multiline strings , so its possible to send python class definitions and other stuff, you type the string exactly as you would type python code respecting whitespaces. If you want to execute loads of lines of python code then it would be better to put your code in a python module and do Ephestos sendMessage: 'import mymodule' assuming your module is called 'mymodule' , python import basically are executions of code. If you have any questions just ask. Bare in mind this is a socket bridge so its not ideal for sending thousands of messages per second and you may run into the occasional bug or two which I will fix if you report it. Nonetheless it should allow you to execute any kind of code and not just call python functions or python methods. On Thu, Sep 25, 2014 at 7:40 PM, Ben Coman b...@openinworld.com wrote: Pablo R. Digonzelli wrote: Hi all , I need to invoke python rutines from Pharo. I need some orientation about the best way to do it. TIA -- *Ing. Pablo Digonzelli* Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonze...@softsargentina.com pdigonze...@gmail.com Cel: 5493815982714 Search the [pharo-dev] list for Ephestos by kilon. cheers -ben
[Pharo-users] Passed by references and by value
Hi, In PBE says that ordinary objects' ivars are passed by references and small integers are passed by value. Is there a way to know if a class is passed by reference or by value? Only small integers are passed as value? Thanks in advance Nacho - Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/Passed-by-references-and-by-value-tp4780289.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.
Re: [Pharo-users] Passed by references and by value
Hi, Most classes are passed by reference including those that were defined by user. But classes like integer are passed by value. I think it's similar to C#. I may be wrong, so better wait for another more competent reply:) Best, Mark 2014-09-25 21:14 GMT+03:00 nacho 0800na...@gmail.com: Hi, In PBE says that ordinary objects' ivars are passed by references and small integers are passed by value. Is there a way to know if a class is passed by reference or by value? Only small integers are passed as value? Thanks in advance Nacho - Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/Passed-by-references-and-by-value-tp4780289.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.
Re: [Pharo-users] invoking python from pharo
Yes , I was aware of the excellent work of kilon. I was hoping that this be the way to solve my issue. Thanks kilon, I will follow your instructions and comment the results into the list. Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonze...@softsargentina.com pdigonze...@gmail.com Cel: 5493815982714 De: kilon alios kilon.al...@gmail.com Para: Any question about pharo is welcome pharo-users@lists.pharo.org Enviados: Jueves, 25 de Septiembre 2014 14:13:34 Asunto: Re: [Pharo-users] invoking python from pharo a minor correction to the previous email its python3 pyatlas.py and not python3 pyAtlas.py also I forgot to make clear that it works for pyhton 2.7 and python 3. On Thu, Sep 25, 2014 at 8:11 PM, kilon alios kilon.al...@gmail.com wrote: Hi there, I promised to do this a long time ago, but since you asked it I done it now. So as Ben said I am the author of Ephestos, a communication bridge between Blender and Pharo . To go directly to the how to . Ephestos is basically a socket bridge that send via sockets strings from pharo to python that then python executes as python commands. Ephestos is made so it works inside blender but I promised Atals a spin off project that allows the same socket bridge to be used as a standalone. To use do the following. 1) Get Ephestos , you can find it and install it with the configuration browser in your image in Pharo 3 and Pharo 4. Make sure you have a recent release though because I added it recently. 2) Get pyAtlas , this is the python side , you can get it from here -- https://github.com/kilon/pyAtlas 3) in your command line cd to the pyAtlas directory and execute : python3 pyAtlas.py 4) in Pharo you can now try any python code you want for example Ephestos sendMessage: 'print(hello world)'. Ephestos sendMessage: 'x = 3'. x := Ephestos getValue: 'x'. x inspect. Ephestos sendMessage: string, basically sends the python command to be executes while getValue: sends the command and returns a value as a string. you can use string 'exit' to close the socket bridge but this part is buggy as it seems to keep the binding of the sokcet active and I have to wait to clean it up in macos to reopen the bridge. You can also use pharo syntax and python errors will trigger the pharo debugger with a title the python error itself. You can find more information about Ephestos in my gitbook that can be read here https://www.gitbook.io/book/kilon/ephestos Also I forgot to add that sendMessage can send multiline strings , so its possible to send python class definitions and other stuff, you type the string exactly as you would type python code respecting whitespaces. If you want to execute loads of lines of python code then it would be better to put your code in a python module and do Ephestos sendMessage: 'import mymodule' assuming your module is called 'mymodule' , python import basically are executions of code. If you have any questions just ask. Bare in mind this is a socket bridge so its not ideal for sending thousands of messages per second and you may run into the occasional bug or two which I will fix if you report it. Nonetheless it should allow you to execute any kind of code and not just call python functions or python methods. On Thu, Sep 25, 2014 at 7:40 PM, Ben Coman b...@openinworld.com wrote: BQ_BEGIN Pablo R. Digonzelli wrote: BQ_BEGIN Hi all , I need to invoke python rutines from Pharo. I need some orientation about the best way to do it. TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonze...@softsargentina.com pdigonze...@gmail.com Cel: 5493815982714 Search the [pharo-dev] list for Ephestos by kilon. cheers -ben BQ_END BQ_END
Re: [Pharo-users] Passed by references and by value
2014-09-25 15:14 GMT-03:00 nacho 0800na...@gmail.com: Hi, In PBE says that ordinary objects' ivars are passed by references and small integers are passed by value. Is there a way to know if a class is passed by reference or by value? Only small integers are passed as value? Yes. It has to do with the object headers, SmallIntegers are embedded in the OH. Esteban A. Maringolo
Re: [Pharo-users] Passed by references and by value
Only small integers are passed as value? Yes. It has to do with the object headers, SmallIntegers are embedded in the OH. What about Float, for example?
Re: [Pharo-users] Ridiculous we are
Le 25/09/2014 07:23, Sven Van Caekenberghe a écrit : On 25 Sep 2014, at 01:04, Alain Rastoul alf.mmm@gmail.com wrote: Le 25/09/2014 00:06, Sven Van Caekenberghe a écrit : Alain, The character encoding situation in Pharo is pretty good actually. The only problem is that there is some old school code left that encodes strings into strings, but today you can easily write much better and conceptually correct code. You could have a look at this draft chapter of the upcoming 'Enterprise Pharo' book that I am currently writing: http://stfx.eu/EnterprisePharo/Zinc-Encoding-Meta/ Concerning file system paths, FilePathEncoder and FilePluginPrimitives already do the right thing. Now, your idea about using UTF-8 to represent internal Strings is something that has been discussed before and in many other languages as well. The short answer is that due to it being variable length, the inefficiency is (probably) just too high. Simple indexed access becomes a problem, let alone more complex string manipulations. I am not saying that it cannot be done, I think it is just not worth the trouble. The current solution in Pharo with ByteString and WideString is quite nice (check the chapter I mentioned before). Sven Very interesting ! It seems that most of what I was saying is already here :) I was not saying that Pharo should use utf8 (I mentionned utf8 because it is a standard, but I find the variable length encoding very weird), I was rather talking of using WideString in UTF 16 or 32 and that's done. I saw asWideString but didn't know about automatic convertion or codepoint selector and internal wide string support. Does it means that Pharo Greek users (for example) use WideString for Strings without having to specify it or make explicit convertions (except of course when dealing with bytes if they want to) ? If yes, very good, job is almost done :) (personnally I would also deprecate ByteString, and get rid of it, just my opinion). Thanks for the link, another good chapter . Regards, Alain ByteString is important because it is an optimalization of the most common case. I understand the point here, memory/data footprint, cpu cache and so on (not talking of encoding/decoding). I think that's why Microsoft choosed UTF16 (old UCS2) as a middle solution because it covers most of character sets with 2 bytes. May be I'm excessive but I have reasons, once had to debug a french program used in China by a Chinese user who was seeing weird characters on a (weird-to-me) chinese windows xp ... a missing WideString and a great moment of loneliness :) As a normal user you should only think of abstract Strings and never use #asByteString (but use proper encoding). Feedback on the chapter is always welcome. Sven Agree. Your chapter is excellent, I played a bit with Zn encoders. I look forward to Pharo for the enterprise on Lulu. However, I'm wondering , WideString beeing a variableWordSubclass: with 32 bits words on a 32 bits vm, what will it become on a 64 bits vm ? 32 bits words or 64 bit words ? immediate characters (seen on Clément Bera's blog about Spur and new object format) ? Alain
Re: [Pharo-users] Machine learning in Pharo?
In BioSmalltalk you can do something like this:
| cluster classifier trainedData observations|
cluster := BioGroupOrganization forSimilarityOn: #value.
trainedData := { 'Polaromonas naphthalenivorans CJ2' .
'Polaromonas sp. JS666' .
'Planctomyces limnophilus DSM 3776' .
'Nautilia' .
'Lactobacillus crispatus ST1' .
'Acidithiobacillus ferrooxidans' }.
trainedData do: [ : feature | cluster addOrganization: (BioOrganization new
feature: feature) ].
classifier := BioClassifier new organization: cluster.
observations := 'Acidithiobacillus ferrooxidans ATCC 53993 chromosome,
complete genome
Lactobacillus crispatus ST1, complete genome
Nautilia profundicola AmH chromosome, complete genome
Planctomyces limnophilus DSM 3776 plasmid pPLIM01, complete sequence
Planctomyces limnophilus DSM 3776 chromosome, complete genome
Polaromonas sp. JS666 plasmid 2, complete sequence
Polaromonas sp. JS666 plasmid 1, complete sequence
Polaromonas sp. JS666, complete genome
Polaromonas naphthalenivorans CJ2, complete genome
Polaromonas naphthalenivorans CJ2 plasmid pPNAP08, complete sequence
Polaromonas naphthalenivorans CJ2 plasmid pPNAP07, complete sequence
Polaromonas naphthalenivorans CJ2 plasmid pPNAP06, complete sequence
Polaromonas naphthalenivorans CJ2 plasmid pPNAP05, complete sequence
Polaromonas naphthalenivorans CJ2 plasmid pPNAP04, complete sequence
' lines.
observations do: [ : obs | classifier classify: obs ].
classifier classesSize = 6.
classifier maxClasses = 6.
classifier maxClass feature = 'Polaromonas naphthalenivorans CJ2'.
classifier minClasses = 1.
classifier minClass feature = 'Nautilia'.
Hernán
2014-09-25 7:08 GMT-03:00 Martin Dias tinchod...@gmail.com:
Hi all,
I'm playing with weka [1] for classifying data using data mining/machine
learning. I'm really new on this field so I want to give you a concrete
example of my use case to make it clear:
I have elements that can be classified as true or false. In a training
phase, I set up a bayesian network with elements that I manually
classified. Then, I can use such network for predicting the classification
of new elements.
--- my question is:
Do we have a package for replacing weka-in-my-use-case in Pharo? It
doesn't need to be exactly a bayesian network, it could be simpler.
I looked a bit in Moose-Algos and in BioSmalltalk but I think they don't
have what I need.
I would appreciate any help. Cheers.
Martín
[1]: http://www.cs.waikato.ac.nz/ml/weka/
Re: [Pharo-users] Passed by references and by value
Floats are passed as values. Objects that are passed as values should be immutable, as floats and integers. Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. On Sep 25, 2014, at 3:35 PM, Mark Rizun mri...@gmail.com wrote: Only small integers are passed as value? Yes. It has to do with the object headers, SmallIntegers are embedded in the OH. What about Float, for example?
Re: [Pharo-users] invoking python from pharo
Its far from excellent. Its not as tested as I want it to be, and the code could be much better but it works and makes interfacing with python code very easy. Its also an ongoing project that I will keep adding feature to , for example I would like to extend pharo syntax to more complex stuff than calling python methods like defining python classes etc so you wont have to use sendMessage and getValue at all and not have to write a line of python code. In short do all your python coding using 100% pharo syntax. But that will take a lot of time to do because it will require a fully python syntax parser. I have updated the code to resolve the error when issuing a command to close the bridge with Ephestos sendMessage:'exit'. This command basically terminate pyAtlas and closes it server socket. I dont know if its Pharo or Python or Macos but it looks like it takes time to free up the socket address so you will need 20 seconds to restart pyAtlas again. I tried to set the timeout of the socket to 1 second but it looks to me it still uses the default 20 seconds timeout. I guess 20 sec is not that bad for a pre alpha software :D But anyway that should not be a problem since you will have to rerun pyatlas every 20 sec , which is something you would not want to do . I was actually planning to test Ephestos with pyQT and pyCuda and make a youtube video about it but have not found the time yet. Probably in the weekend. On Thu, Sep 25, 2014 at 9:23 PM, Pablo R. Digonzelli pdigonze...@gmail.com wrote: Yes , I was aware of the excellent work of kilon. I was hoping that this be the way to solve my issue. Thanks kilon, I will follow your instructions and comment the results into the list. -- *Ing. Pablo Digonzelli* Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonze...@softsargentina.com pdigonze...@gmail.com Cel: 5493815982714 -- *De: *kilon alios kilon.al...@gmail.com *Para: *Any question about pharo is welcome pharo-users@lists.pharo.org *Enviados: *Jueves, 25 de Septiembre 2014 14:13:34 *Asunto: *Re: [Pharo-users] invoking python from pharo a minor correction to the previous email its python3 pyatlas.py and not python3 pyAtlas.py also I forgot to make clear that it works for pyhton 2.7 and python 3. On Thu, Sep 25, 2014 at 8:11 PM, kilon alios kilon.al...@gmail.com wrote: Hi there, I promised to do this a long time ago, but since you asked it I done it now. So as Ben said I am the author of Ephestos, a communication bridge between Blender and Pharo . To go directly to the how to . Ephestos is basically a socket bridge that send via sockets strings from pharo to python that then python executes as python commands. Ephestos is made so it works inside blender but I promised Atals a spin off project that allows the same socket bridge to be used as a standalone. To use do the following. 1) Get Ephestos , you can find it and install it with the configuration browser in your image in Pharo 3 and Pharo 4. Make sure you have a recent release though because I added it recently. 2) Get pyAtlas , this is the python side , you can get it from here -- https://github.com/kilon/pyAtlas 3) in your command line cd to the pyAtlas directory and execute : python3 pyAtlas.py 4) in Pharo you can now try any python code you want for example Ephestos sendMessage: 'print(hello world)'. Ephestos sendMessage: 'x = 3'. x := Ephestos getValue: 'x'. x inspect. Ephestos sendMessage: string, basically sends the python command to be executes while getValue: sends the command and returns a value as a string. you can use string 'exit' to close the socket bridge but this part is buggy as it seems to keep the binding of the sokcet active and I have to wait to clean it up in macos to reopen the bridge. You can also use pharo syntax and python errors will trigger the pharo debugger with a title the python error itself. You can find more information about Ephestos in my gitbook that can be read here https://www.gitbook.io/book/kilon/ephestos Also I forgot to add that sendMessage can send multiline strings , so its possible to send python class definitions and other stuff, you type the string exactly as you would type python code respecting whitespaces. If you want to execute loads of lines of python code then it would be better to put your code in a python module and do Ephestos sendMessage: 'import mymodule' assuming your module is called 'mymodule' , python import basically are executions of code. If you have any questions just ask. Bare in mind this is a socket bridge so its not ideal for sending thousands of messages per second and you may run into the occasional bug or two which I will fix if you report it. Nonetheless it should allow you to execute any kind of code and not just call python functions or python methods. On Thu, Sep 25, 2014 at 7:40 PM, Ben Coman
Re: [Pharo-users] Passed by references and by value
I forgot. Floats too. And I think that's it. Esteban A. Maringolo 2014-09-25 15:35 GMT-03:00 Mark Rizun mri...@gmail.com: Only small integers are passed as value? Yes. It has to do with the object headers, SmallIntegers are embedded in the OH. What about Float, for example?
Re: [Pharo-users] Passed by references and by value
Hi, In PBE says that ordinary objects' ivars are passed by references and small integers are passed by value. Strange I do not remember having written that. Especially because in Smalltalk this has no real interest. Is there a way to know if a class is passed by reference or by value? In Smalltalk consider that everything is an object and that you pass a reference to the object. Only small integers are passed as value? Thanks in advance Nacho - Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/Passed-by-references-and-by-value-tp4780289.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.
Re: [Pharo-users] BLOG: Block Translators - parsing magic
Hi udo I agree with sven :) We could easily turn your blog into a chapter for a future book :) I have the impression that the blog is how to avoid parsing and still get translation done! Stef Hi Sven, thanks for the feedback. Keep that kind of stuff coming, it is very helpful. I'll try to. It just always takes so long to write stuff. But I think you know that, don't you? :-) CU, Udo On 23.09.14 16:00, Sven Van Caekenberghe wrote: Hi Udo, This is really an excellent article: I enjoyed reading it a lot. It is well written, has lots of relevant code examples and a nice pace, but above all it is really interesting. Thanks a lot. Keep that kind of stuff coming, it is very helpful. Sven On 23 Sep 2014, at 01:48, Udo Schneider udo.schnei...@homeaddress.de wrote: All, I just finished a blog entry. It shows how to use Smalltalk blocks as parsers/translators. E.g. translating a Block [:customer | (customer joinDate year is: Date today year)] into an SQL-like String (YEAR(customers.joinDate) = 2014) The SQL stuff is just an example - you can create nearly any output. Check out http://readthesourceluke.blogspot.de/2014/09/block-translators-parsing-magic.html Maybe that's old stuff for some of you - but I hope it's interesting for some at least :-) Comments and feedback appreciated. CU, Udo
Re: [Pharo-users] BLOG: Block Translators - parsing magic
Yes I do, but you also know (it was clear from the article) that you learn a lot yourself from writing something for public consumption. Most people underestimate how powerful that is. :) In fact I only write for that: to force myself to deeply understand something and be able to forget it :) Stef
Re: [Pharo-users] invoking python from pharo
Excellent, I will waiting ... Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonze...@softsargentina.com pdigonze...@gmail.com Cel: 5493815982714 De: kilon alios kilon.al...@gmail.com Para: Any question about pharo is welcome pharo-users@lists.pharo.org Enviados: Jueves, 25 de Septiembre 2014 16:01:08 Asunto: Re: [Pharo-users] invoking python from pharo Its far from excellent. Its not as tested as I want it to be, and the code could be much better but it works and makes interfacing with python code very easy. Its also an ongoing project that I will keep adding feature to , for example I would like to extend pharo syntax to more complex stuff than calling python methods like defining python classes etc so you wont have to use sendMessage and getValue at all and not have to write a line of python code. In short do all your python coding using 100% pharo syntax. But that will take a lot of time to do because it will require a fully python syntax parser. I have updated the code to resolve the error when issuing a command to close the bridge with Ephestos sendMessage:'exit'. This command basically terminate pyAtlas and closes it server socket. I dont know if its Pharo or Python or Macos but it looks like it takes time to free up the socket address so you will need 20 seconds to restart pyAtlas again. I tried to set the timeout of the socket to 1 second but it looks to me it still uses the default 20 seconds timeout. I guess 20 sec is not that bad for a pre alpha software :D But anyway that should not be a problem since you will have to rerun pyatlas every 20 sec , which is something you would not want to do . I was actually planning to test Ephestos with pyQT and pyCuda and make a youtube video about it but have not found the time yet. Probably in the weekend. On Thu, Sep 25, 2014 at 9:23 PM, Pablo R. Digonzelli pdigonze...@gmail.com wrote: Yes , I was aware of the excellent work of kilon. I was hoping that this be the way to solve my issue. Thanks kilon, I will follow your instructions and comment the results into the list. Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonze...@softsargentina.com pdigonze...@gmail.com Cel: 5493815982714 De: kilon alios kilon.al...@gmail.com Para: Any question about pharo is welcome pharo-users@lists.pharo.org Enviados: Jueves, 25 de Septiembre 2014 14:13:34 Asunto: Re: [Pharo-users] invoking python from pharo a minor correction to the previous email its python3 pyatlas.py and not python3 pyAtlas.py also I forgot to make clear that it works for pyhton 2.7 and python 3. On Thu, Sep 25, 2014 at 8:11 PM, kilon alios kilon.al...@gmail.com wrote: BQ_BEGIN Hi there, I promised to do this a long time ago, but since you asked it I done it now. So as Ben said I am the author of Ephestos, a communication bridge between Blender and Pharo . To go directly to the how to . Ephestos is basically a socket bridge that send via sockets strings from pharo to python that then python executes as python commands. Ephestos is made so it works inside blender but I promised Atals a spin off project that allows the same socket bridge to be used as a standalone. To use do the following. 1) Get Ephestos , you can find it and install it with the configuration browser in your image in Pharo 3 and Pharo 4. Make sure you have a recent release though because I added it recently. 2) Get pyAtlas , this is the python side , you can get it from here -- https://github.com/kilon/pyAtlas 3) in your command line cd to the pyAtlas directory and execute : python3 pyAtlas.py 4) in Pharo you can now try any python code you want for example Ephestos sendMessage: 'print(hello world)'. Ephestos sendMessage: 'x = 3'. x := Ephestos getValue: 'x'. x inspect. Ephestos sendMessage: string, basically sends the python command to be executes while getValue: sends the command and returns a value as a string. you can use string 'exit' to close the socket bridge but this part is buggy as it seems to keep the binding of the sokcet active and I have to wait to clean it up in macos to reopen the bridge. You can also use pharo syntax and python errors will trigger the pharo debugger with a title the python error itself. You can find more information about Ephestos in my gitbook that can be read here https://www.gitbook.io/book/kilon/ephestos Also I forgot to add that sendMessage can send multiline strings , so its possible to send python class definitions and other stuff, you type the string exactly as you would type python code respecting whitespaces. If you want to execute loads of lines of python code then it would be better to put your code in a python module and do Ephestos sendMessage: 'import mymodule' assuming your module is called 'mymodule' , python import basically are executions of
Re: [Pharo-users] BLOG: Block Translators - parsing magic
Hi Stef, We could easily turn your blog into a chapter for a future book :) Wow! I didn't really expect that! But I'd happy to help any way I can. Maybe by adding some bits an pieces how to parse blocks with multiple expressions? I have that working for a project I'm working on - but it isn't nice enough for an article (yet). I have the impression that the blog is how to avoid parsing and still get translation done! Let me put it that way: I love using PetitParser - but sometimes parsing an expression compared to full code is more than enough. It also has the benefit of blending nicely with regular Smalltalk tools (code, not Strings!) w/o hooking into the compiler - which makes it more portable by default. So you're right - it provides a kind of AST which allows you to reason about some Smalltalk expression w/o relying on a full parser. I'll use it for translating only though... The limitations of this approach are clear - but if you need more than the tools you'll need are clear and known as well. CU, Udo On 25.09.14 22:06, stepharo wrote: Hi udo I agree with sven :) We could easily turn your blog into a chapter for a future book :) I have the impression that the blog is how to avoid parsing and still get translation done! Stef Hi Sven, thanks for the feedback. Keep that kind of stuff coming, it is very helpful. I'll try to. It just always takes so long to write stuff. But I think you know that, don't you? :-) CU, Udo On 23.09.14 16:00, Sven Van Caekenberghe wrote: Hi Udo, This is really an excellent article: I enjoyed reading it a lot. It is well written, has lots of relevant code examples and a nice pace, but above all it is really interesting. Thanks a lot. Keep that kind of stuff coming, it is very helpful. Sven On 23 Sep 2014, at 01:48, Udo Schneider udo.schnei...@homeaddress.de wrote: All, I just finished a blog entry. It shows how to use Smalltalk blocks as parsers/translators. E.g. translating a Block [:customer | (customer joinDate year is: Date today year)] into an SQL-like String (YEAR(customers.joinDate) = 2014) The SQL stuff is just an example - you can create nearly any output. Check out http://readthesourceluke.blogspot.de/2014/09/block-translators-parsing-magic.html Maybe that's old stuff for some of you - but I hope it's interesting for some at least :-) Comments and feedback appreciated. CU, Udo
Re: [Pharo-users] Loading PetitParser loads a hell of a lot of things... is there a terser version?
Tudor Girba-2 wrote If you can live without the UI, you can load the 'Core' group from the configuration. +1. That's what I usually do. - Cheers, Sean -- View this message in context: http://forum.world.st/Loading-PetitParser-loads-a-hell-of-a-lot-of-things-is-there-a-terser-version-tp4780159p4780340.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.
[Pharo-users] Your picture on Pharo contributors :)
Hi guys do not forget to sign the license agreement http://files.pharo.org/media/PharoSoftwareDistributionAgreement.pdf and send us your picture to be added to http://pharo.org/about Stef
Re: [Pharo-users] Your picture on Pharo contributors :)
On 26 Sep 2014, at 07:25, stepharo steph...@free.fr wrote: Hi guys do not forget to sign the license agreement http://files.pharo.org/media/PharoSoftwareDistributionAgreement.pdf and send us your picture to be added to http://pharo.org/about Stef The picture should be a 70x70 PNG.
