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

[Pharo-project] HTML parser (again)
by Andrei Stebakov Aug. 20, 2010

Aug. 20, 2010

I've been looking for a nice and fast HTML parser. I've found Zulq Alam's Soup (http://www.squeaksource.com/@vHckXt8_6gVtXFxy/XMrjDbIs) it looks nice but it's way too slow for me (takes 5 sec to parse the page, my current lisp parser takes about 1 sec for that.) I found another one, Todd Blanchard's HTML and CSS parser (http://www.squeaksource.com/@iMgHmTKVxU00wEdz/A0jkqk71) but I couldn't load it into Pharo 1.1 or Squeak 4.1. It complains about some syntax error and leaves the progress bar which I can't kill... I wonder if anyone (Todd?) can take a look at the parser and figure out how to fix it? What other options I have for an HTML parser? Looking at Pharo speed I wonder if there is any way to optimize it? Is JIT or some other speed optimization in plans for Pharo/Squeak? Thank you, Andrei

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[Pharo-project] Mailinglist Opal Compiler Framework
by Marcus Denker Aug. 20, 2010

Aug. 20, 2010

Hi, There is a mailinglist for the Opal Compiler Framework. This gets commit emails from SqueakSource and generaly is used / will be used for communicating between developers and for discussions about clients deeply using the framework (e.g. Helvetia, Reflectivity, Bytesurgeon, DSAL...) http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-compiler Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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[Pharo-project] Wrap .a into a .so for use by FFI
by Schwab,Wilhelm K Aug. 20, 2010

Aug. 20, 2010

Hello all, In short, I have a static library (.a) and want to make a shared library (.so) that exports all of the functions in the static library for use by FFI. I have something building, but it is presumably being too helpful and stripping out the unreferenced symbols, leaving me with nothing?? Is there an easy way to include the code in the resulting .so? I am starting to work with a data acquisition board from Access IO. My original plan was to write something in C++ that would wrap the board and driver with a socket server. The idea was to get the benefit of a separate OS process that could aggressively (quasi real time) move data as needed, allowing Pharo to simply read from a socket and otherwise be unblocked. On re-reading some of the documentation, this could turn out to be as simple as calling a few functions to set options, allocating a block of memory and calling a funtion to turn the board loose to fill the buffer with data. In this model, I would then, on timer or user interaction, call a polling function to see how much of the buffer has yet to be filled. It might turn out to be very simple to do. Snag: there is no .so, so AFAICT, there is nothing to ask FFI to load; I am mostly concerned with doing this on Linux. I created a quick .so project and linked the (.a) static library. The result builds, but at 5.3 kb, it cannot possibly contain the code I hope to put in it. I am looking at options such as -export-dynamic and hunting around for ways to disable stripping or similar concepts. Any ideas? Worst case, I could add functions that wrap the functions I want to call and bind FFI to them, but that is hopefully not necesssary. The closest I have come to this is the Gnu Scientific Library. The Linux .so files would not load due to cyclic dependencies between BLAS and the balance of the library, and it was clear from searches that they had no plans to fix it ("oh, that's one of those dynamic languages"). I was easily able to create a shared library that links both parts of GSL, exports a few functions to avoid having to roll my own callbacks, and all is well. Either I got lucky with the exports and any relevant options, or the .so's make the problem less challenging than my current task. Bill

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[Pharo-project] Can't file in *.st exports
by Robert Sirois Aug. 19, 2010

Aug. 19, 2010

There's some sort of weird system error when I try to fileIn a *.st file (like a class method). It asks me to "CR" for a debugger or any key to restart. I ended up having to force quit.This is in the latest 1.1 one-click.Thanks,RS

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[Pharo-project] Probably a bug
by GÃ¶ran Krampe Aug. 19, 2010

Aug. 19, 2010

Hi! Just wanted to mention this, stumbled over it: Character separators asString ...doesn't seem to do give us the right thing :) along the way there. Perhaps Sean stumbled over this too with Todd's HTML parser, that is where I saw the issue at least. So obviously something is different in Pharo these days. regards, GÃ¶ran

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[Pharo-project] cogVM in pharo {WAS} Re: [squeak-dev] Re: HTML parser (again)
by Mariano Martinez Peck Aug. 19, 2010

Aug. 19, 2010

On Wed, Aug 18, 2010 at 11:05 PM, stephane ducasse < stephane.ducasse(a)gmail.com> wrote: > no CogVM is not ready for us. > > why not? It tohught it was everything working but objects as methods.... is there something else? > > > Is there a one-click image for CogVM somewhere so I can download it? > > > > > > On Wed, Aug 18, 2010 at 2:34 AM, laurent laffont > > <laurent.laffont(a)gmail.com> wrote: > >> > >> > >> On Wed, Aug 18, 2010 at 7:50 AM, Andrei Stebakov <lispercat(a)gmail.com> > >> wrote: > >>> > >>> I've been looking for a nice and fast HTML parser. > >>> I've found Zulq Alam's Soup > >>> (http://www.squeaksource.com/@vHckXt8_6gVtXFxy/XMrjDbIs) it looks nice > >>> but it's way too slow for me (takes 5 sec to parse the page, my > >>> current lisp parser takes about 1 sec for that.) > >>> I found another one, Todd Blanchard's HTML and CSS parser > >>> (http://www.squeaksource.com/@iMgHmTKVxU00wEdz/A0jkqk71) but I > >>> couldn't load it into Pharo 1.1 or Squeak 4.1. > >>> It complains about some syntax error and leaves the progress bar which > >>> I can't kill... > >>> I wonder if anyone (Todd?) can take a look at the parser and figure > >>> out how to fix it? > >>> > >>> What other options I have for an HTML parser? > >>> Looking at Pharo speed I wonder if there is any way to optimize it? Is > >>> JIT or some other speed optimization in plans for Pharo/Squeak? > >> > >> > >> What do you need to do ? > >> There's XMLSupport http://www.squeaksource.com/XMLSupport.html > >> Scamper might have a standalone HTML > >> parser http://www.squeaksource.com/Scamper.html > >> The CogVM has JIT. > >> Laurent. > >> > >>> > >>> Thank you, > >>> Andrei > >>> > >>> _______________________________________________ > >>> Pharo-project mailing list > >>> Pharo-project(a)lists.gforge.inria.fr > >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > >> > >> > >> > >> > >> > > > > >

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[Pharo-project] organization
by stephane ducasse Aug. 19, 2010

Aug. 19, 2010

so far we have SystemDictionary>>organization "Return the organizer for the receiver" ^SystemOrganization so it means that this is global in Smalltalk globals. But I'm skeptical that this can work for another instance of SystemDictionary and even if this works I find this code brittle since it relies on the compiler global look up. I was thinking that either defining an organization as an instance variable SystemDictionary would make sense or using an explicit lookup in the instance itself. SystemDictionary>>organization "Return the organizer for the receiver" ^ self at: #SystemOrganization now I'm dead so I need other eyes. Stef

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Aug. 19, 2010

Hi I noticed that if I define a method it shows up in the recentMessageSet Now if I load code with mc it does not, even though it is logged in the changes (the logging in the changes is done by SmalltalkImage>>event:) which could indicate that SystemChangeNotifier notified the right tools. Does anybody have an idea? Because this is confusing. Stef

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Aug. 19, 2010

12100 ----- - Enter back to accept TextEntryDialogWindow. Thanks Gary Chambers. - Issue 2833: Pharo 1.1 final has two senders of #haltOnce - fixes some Smalltalk -> Smalltalk globals

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[Pharo-project] moose images for cog vm
by Tudor Girba Aug. 19, 2010

Aug. 19, 2010

Hi, Given the nice recent improvements of the Cog VM, the hudson.moosetechnology.org continuous integration server now produces Moose images that work with this VM: http://hudson.moosetechnology.org/job/moose-latest-dev-for-cog/ Cheers, Doru -- www.tudorgirba.com "If you interrupt the barber while he is cutting your hair, you will end up with a messy haircut."

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