December 2010 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Printing hexadecimal values of a string

by Sven Van Caekenberghe

Hi Geoffroy, On 19 Dec 2010, at 21:55, Geoffroy Couprie wrote: > Hello all, > > I get a strange behaviour while trying to print hexadecimal values of a string. > > Context: I get a SHA1 hash from a binary stream, store it into a > string, and I want to display that string (using asHex). > > Problem: for values inferior to 16, the leading zero is ignored. (15 > -> 'F' instead of '0F'). > > I could modify SmallInteger>>printStringBase: to always include the > leading zero, but I fear I'm going to break a lot of code doing that. > Is there a better way to fix my problem? apart from using directly the > following: > aStream do:[:val | val printStringBase:16 nDigits:2] > > Best regards, > > Geoffroy Why would you not use the ByteArray>>#hex method ? #(0 1 2 253 254 255) asByteArray hex '000102fdfeff' Sven

Dec. 19, 2010

[Pharo-project] Issue 3457 in pharo: Cannot show new CompiledMethod's asString

by pharo＠googlecode.com

Status: Accepted Owner: hernan.m...(a)gmail.com Labels: Difficulty-Easy Milestone-1.2 New issue 3457 by hernan.m...(a)gmail.com: Cannot show new CompiledMethod's asString http://code.google.com/p/pharo/issues/detail?id=3457 Pharo image: core Pharo core version: Pharo1.2beta #12282 Virtual machine used: 4.0.2 Steps to reproduce: 1. Evaluate: CompiledMethod new asString MessageNotUnderstood: receiver of "decompilerClass" is nil Stack trace attached. Attachments: PharoDebug.log 28.2 KB

Dec. 19, 2010

[Pharo-project] Printing hexadecimal values of a string

by Geoffroy Couprie

Hello all, I get a strange behaviour while trying to print hexadecimal values of a string. Context: I get a SHA1 hash from a binary stream, store it into a string, and I want to display that string (using asHex). Problem: for values inferior to 16, the leading zero is ignored. (15 -> 'F' instead of '0F'). I could modify SmallInteger>>printStringBase: to always include the leading zero, but I fear I'm going to break a lot of code doing that. Is there a better way to fix my problem? apart from using directly the following: aStream do:[:val | val printStringBase:16 nDigits:2] Best regards, Geoffroy

Dec. 19, 2010

Re: [Pharo-project] A pass on bugs of 1.2 and 1.2-Dev

by Luc Fabresse

2010/12/19 Mariano Martinez Peck <marianopeck(a)gmail.com> > Cool Luc!!! Hope we have the Pharo1.2 dev soon :) Yes that is why I will try to correct some bugs ;-) #Luc > > > On Sun, Dec 19, 2010 at 3:34 PM, Marcus Denker <marcus.denker(a)inria.fr>wrote: > >> >> On Dec 19, 2010, at 2:31 PM, Luc Fabresse wrote: >> >> Hi all, >> >> I made a pass on failing tests. >> I fixed some: #3415 #3455 #3456 >> >> >> >> I will do a core update now... >> >> >> I report #3454 in 1.2-dev : DNU when looking for implementors in OBrowser >> >> #Luc >> >> >> -- >> Marcus Denker -- http://www.marcusdenker.de >> INRIA Lille -- Nord Europe. Team RMoD. >> >> >

Dec. 19, 2010

Re: [Pharo-project] XMLRPC server

by GermÃ¡n Arduino

Hi Sean: Thanks by the support! About Mac, unfortunately I can't say nor help with nothing, because I don't have one .... are soooo expensives here. Cheers. 2010/12/18 Sean P. DeNigris <sean(a)clipperadams.com>: > > > GermÃ¡n Arduino wrote: >> >> Yes, I'm working on that project. >> > > Thanks for working on this GermÃ¡n! > > I keep an XmlRpc server running in my personal image so that I can script OS > X with Smalltalk. Â I just set up shortcuts in FastScripts to Ruby one-liners > that make the XMLRPC calls to the image. > > The script in the image below with ctrl-t shortcut in Safari evaluates a > Smalltalk method: > http://forum.world.st/file/n3094039/Screen_shot_2010-12-18_at_December_18%2… > > -- > View this message in context: http://forum.world.st/XMLRPC-server-tp3090251p3094039.html > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. > > -- ================================================= GermÃ¡n S. ArduinoÂ <gsa @ arsol.net>Â Â Twitter: garduino Arduino Software & Web HostingÂ Â http://www.arduinosoftware.com PasswordsProÂ http://www.passwordspro.com =================================================

Dec. 19, 2010

Re: [Pharo-project] Pharo features

by HernÃ¡n Morales Durand

2010/12/19 Steve Wart <steve(a)wart.ca>: > > You forgot Computer Vision - there's a project called OpenCV > (http://opencv.willowgarage.com/) that has an urgent need for a > Smalltalk front-end. > For those interested, there is a wrapper for OpenCV implemented in Visual Smalltalk in http://alereimondo.no-ip.org/OpenCV/21 -- HernÃ¡n Morales Information Technology Manager, Institute of Veterinary Genetics. National Scientific and Technical Research Council (CONICET). La Plata (1900), Buenos Aires, Argentina. Telephone: +54 (0221) 421-1799. Internal: 422 Fax: 425-7980 or 421-1799.

Dec. 19, 2010

Re: [Pharo-project] Pharo features

by Steve Wart

Two thoughts: 1. this is a broad range of very specialized topics - are you really serious that you want to do all of these things as part of one project? 2. there are specialized languages and tools for doing a lot of this stuff, many free. Each item below will have an entire project or library you can use Certainly you can do any of this stuff with Pharo if you are focused and willing to integrate various libraries, but I think it is better to have a clear idea of your ultimate goal. Raster graphics: have you looked at processing.org or nodebox.net (also http://www.cityinabottle.org/blog/nodebox-opengl/)? 3D modeling and rigging: blender.org - check the forums there especially Ray tracing: http://www.povray.org/ Sound and music synthesis: okay I think Siren has been ported from VisualWorks to Squeak, I'm not sure if it will run on Pharo - also Pure Data might be interesting (see http://en.wikipedia.org/wiki/Pure_Data) Video editing - I'm not aware of many free tools for that. If you have the money to spend on the hardware, you probably have the money to buy commercial software. Text processing is also a big topic - HTML generation, certainly Pharo and Seaside excel at that, but again, what do you want to generate HTML from? Regexp libraries are widely available for every platform, including Pharo. If you're looking for an office suite, there is nothing like that in Pharo OCR, speech recognition, text to speech - no idea. You could build a Smalltalk wrapper for aalib (http://aa-project.sourceforge.net/aalib/) - that would be totally awesome :) You forgot Computer Vision - there's a project called OpenCV (http://opencv.willowgarage.com/) that has an urgent need for a Smalltalk front-end. Explain again how you're not a troll? thanks, Steve On Sat, Dec 18, 2010 at 5:08 AM, Ivano Arrighetta <thc-03_berserk(a)hotmail.it> wrote: > Hello everyone. > A friend of mine suggested me to use Pharo because I ask him for > informations on Emacs in order to do some MultiMedia stuff. > Now, is Pharo ok to do this? (list follows) > Raster graphics (processing, synthesis, input/capturing, output/saving), > vector graphics (same), 3D graphics (modeling, rigging, rendering, > raytracing, opening and saving 3D files), sound processing (sound synthesis, > algoritmic music composition, post processing), video editing (opening, > saving, cutting/rotating/processing video files), text processing (HTML > output, regex/find and replace/whateverI would do with Word + Excel), > Optical character recognition, text to speech, speech recognition, ASCII > Art. > > Thanks in advance for any answer. >

Dec. 19, 2010

Re: [Pharo-project] Can you do this? Re: Automated VM build server

by Igor Stasenko

Yes, Mariano, this is what we want to do. Maybe little different in detail, but the result will be the same: you can checkout XXX version of sources from repository and build the VM using same VMMaker which were used to build VM. I hope we will meet tomorrow and discuss the details. On 19 December 2010 17:17, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > Hi Igor. I really appreciate your work on this field. > > I wonder if you or someone could provide (in a future) the following: > > I would like to be able to download a PharoVM OneClick (or put the name you > want), which is a zip with the following: > > 1) All the platform code of a version XXX. > 2) All the src folder with the code generated by ConfigurationOfVMMaker > version YYY. > 3) Inside the platform folder, for mac, there is always a xcode project. > This project file, should be configured so that it takes the sources from > the src folder. > 4) An squeak/pharo image with VMMaker and plugins loaded. And this has to be > loaded by ConfigurationOfVMMaker version YYY > 5) The previous image can also have a workspace with the Do-it that was used > to generate the src folder. And, this should be pointing to the path ../src > > And of course, version YYY should work with XXX. > > If you can provide this, not necessary automaticallly generated all the > time, but every some time, this would be awesome. This will let people to: > > - just open xcode/make and compile a vm > - just open the image, change VMMaker, generate sources and then compile a > new vm > > I think this will REALLY increase the people using/developing/learning VM. > > cheers > > mariano > > On Fri, Dec 17, 2010 at 9:17 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: >> >> In our nearest plans is make an automated (Hudson based) build setup >> for Cog and Squeak VMs. >> >> All files, which used for building an artifacts should be included in >> source code repository. >> So, most probably i will add the 'hudson-build' dir at same level as >> 'platforms', where scripts and configs will be stored. >> >> Some changes which i going to do: >> Â - all generated code will be removed from version controlled tree. >> Instead of it i will add an information, which will be enough >> to reproduce the generated code by taking 3 separate config file(s) >> >> a) image version (or its URL(s) for download) >> b) script for loading VMMaker (of concrete version) + all addons like >> FFI , FT2 etc etc into image >> c) script for generating the source code using VMMaker image >> .. >> z) tell me if i miss anything here >> >> With removing generated source code from repo we now can make sure >> that any changes in VMMaker (including code generation itself) >> can be tested and can be reproduced by build server at any snapshot >> version. >> Also, we could test & see if VMMaker loads well and can generate code >> using different base images. >> So, we will instantly know if any changes in compiler, or other layers >> of system is breaking VMMaker. >> >> Because having a years old image where VMMaker works 100%, but at same >> time have 100% chances that it >> couldn't be loaded (or even if loaded, but can't run correctly) in >> latest image is not what i think good practice for >> keeping your house clean. >> >> >> So, by getting rid any intermediate artifacts from build Â chain we >> will be able to make sure that: >> Â - VMMaker loads w/o problems in latest/multiple image(s) >> Â - VMMaker works well and can generate code >> >> That's means that for any newcomer, loading and building VM will be >> much less tedious process, and for 99% >> of cases it can be fully automated error free process. >> >> And let me remind our motto: we're not trying to produce perfect >> system/setup from first lucky shot. >> We slowly but steady crawling towards improved state of art. >> >> Any comments, ideas and suggestions are welcome. >> >> -- >> Best regards, >> Igor Stasenko AKA sig. >> > > -- Best regards, Igor Stasenko AKA sig.

Dec. 19, 2010

Re: [Pharo-project] [Hudson] Changes

by Miguel CobÃ¡

El dom, 19-12-2010 a las 15:23 +0100, Marcus Denker escribiÃ³: > > The direkt links (unchanging from now on) are: Danke! -- Miguel CobÃ¡ http://twitter.com/MiguelCobaMtz http://miguel.leugim.com.mx

Dec. 19, 2010

Re: [Pharo-project] Graph library in Smalltalk - Need for advices (St?phane Ducasse)

by Ralph Boland

>> May this is a ridiculuous thought but may be it would be good to start an effort on >> build a library for Smalltalk. Reusing some part of mondrian could be good. >> >> It would be very slow and really a lot of work. Mondrian is nice for visualization, but a Graph library is a lot more than that. > But not starting means that we will never have anything. > If there are multiple people needed something this means that they can join forces. > For Moose, mondrian, glamour, petitParser, RB.... nothing came out from a day to the other one > this is just that some guys starred and continued to push. > Stef If there was a basic library for graphs then people who need specific graph algorithm implementations could contribute that implementation once they complete it for their application. By this means a more complete graph library would gradually evolve. All we need for now is a well designed framework for implementing graph algorithms in with implementations of some common algorithms. Regards, Ralph Boland -- Quantum Theory cannot save us from the tyranny of a deterministic universe but it does give God something to do

Dec. 19, 2010