January 2011 - Pharo-dev - lists.pharo.org

[Pharo-project] Metacello Help book in Pharo-Dev
by Torsten Bergmann Jan. 18, 2011

Jan. 18, 2011

>The problem is that we have 25 pages of metacello explanation before that >blog (which will be added to the book chapter). Hi Stef, I do not mean to add the blog contents! His latest blog post shows a Pharo help book that is available as monticello documentation: See this screenshot: http://gemstonesoup.files.wordpress.com/2011/01/screenshot.png http://gemstonesoup.files.wordpress.com/2011/01/screenshot.png http://gemstonesoup.files.wordpress.com/2011/01/profstef-tutorial.png and I ask if it would make sense to add it to Pharo-dev by default or if one only gets it if he knows about Metacello and how to load this book. Since it includes the API-Doc I think this would mean to include Metacello too into Pharo-dev... Bye T. -- GMX DSL Doppel-Flat ab 19,99 Euro/mtl.! Jetzt mit gratis Handy-Flat! http://portal.gmx.net/de/go/dsl

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Re: [Pharo-project] Surprising binary messages!
by Marcus Denker Jan. 18, 2011

Jan. 18, 2011

On Jan 18, 2011, at 12:30 PM, Noury Bouraqadi wrote: > 5 is the surprising answer of the expression: > 6 + 4 / 2 > > It should be 8 > But, I got 5 in both 1.1 and 1.2. Why? 6 + 4 is 10 and devided by 2 is 5. (there is no operator precedence) Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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[Pharo-project] Nabble ...
by Geert Claes Jan. 18, 2011

Jan. 18, 2011

Just to let everyone know that there seems to be an import problem on our Nabble forums since yesterday afternoon. Nabble support has been contacted and I hope things will be back to normal shortly.

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[Pharo-project] Was not able to update with #12304
by Torsten Bergmann Jan. 18, 2011

Jan. 18, 2011

Looks like a Cog issue, I was able to reproduce it: When I download "PharoCore-1.2.zip" from https://pharo-ic.lille.inria.fr/hudson/job/Pharo%20Core%201.2/126/ (which is a Pharo 1.2 Core #12303 image) and I directly start the image with the latest Win32 Cog VM from Eliot then I'm not able to go through update #12304 via the update mechanism as I already wrote in [1]. I get this error: => ClassBuilder(Object)>>doesNotUnderstand: #reshapeClass:toSuper: When I use the standard VM I'm able to update correctly to the latest version pharo core 1.2 #12307 Maybe Eliot is able to reproduce and fix it. Until then I switch to standard VM. Thx Torsten [1] http://lists.gforge.inria.fr/pipermail/pharo-project/2011-January/039747.ht… -- Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de

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[Pharo-project] Example of XML SAX Parser usage
by Larry Gadallah Jan. 18, 2011

Jan. 18, 2011

Hi all: I'm reviving a thread from long ago now that I've gotten a few minutes to look at this question again: How is XML data best parsed using a SAX parser in Pharo Smalltalk? I tried to look at the GenomeTools project that Miguel references below, but it seems that the class he mentions (GTNCBIBlastParser) is no longer in it. Perhaps there's a newer, better example of how to drive the SAX parser somewhere? > Message: 4 > Date: Tue, 20 Jul 2010 12:25:29 -0500 > From: Miguel Enrique Cob? Mart?nez <miguel.coba(a)gmail.com> > Subject: Re: [Pharo-project] Markup Builder in Smalltalk (XMLWriter) > To: Pharo-project(a)lists.gforge.inria.fr > Message-ID: <1279646729.2450.13.camel(a)laptop.localdomain> > Content-Type: text/plain; charset="UTF-8" > > This good summary should go directly to the collaboractive book. > > > El mar, 20-07-2010 a las 14:11 -0300, Hern?n Morales Durand escribi?: >> A XML parser just creates a representation of a XML document according >> to a parsing model. Ideally you should choose a XML parser >> specifically for your needs. You have different parsing models: >> >> -Tree Parser: This is what you will read everywhere as the "DOM parser" >> -Event Parser: This is denoted Â by S*X and could be >> --SAX Parser: Known as the "Push parser" >> --StAX Parser: Known also too as the "Pull parser" >> -VTD Parser : This is known as "Virtual Token Descriptor" >> >> Now there are several classifications depending of the parser >> characteristics and what you want to do or how. You may be interested >> in: >> >> Making modifications or just processing? >> -For modifications: The parser creates long-lived representations from >> the XML document (necessary for modifications): You should choose DOM >> or VTD >> --Do you *need* to query or modify the objects (parser creates nodes): DOM >> --You do not need the objects (parser creates integers and locations >> caches): VTD >> -For processing: The parser doesn't creates long-lived objects: SAX or StAX. >> >> Type of Access >> -Back-and-forth: Access the data after the parsing is complete: DOM or VTD >> --Massive or very frequent access: Choose DOM >> --Rare or simple access: Choose VTD >> -Sequential: Access the data while you're processing the document: SAX or StAX >> --Processing all tokens: SAX >> --Processing interested tokens (allows skipping forward): StAX >> >> Briefly >> -Streaming applications (very large documents): SAX or StAX >> -Database applications: DOM or VTD >> -Hardware acceleration?: VTD >> >> For the S*X parsers you need to know the XML token types because, for >> example in the case of XMLParser in Pharo/Squeak, you probably would >> subclass SAXHandler and override one or several methods in the content >> category to do your own processing. See GTNCBIBlastParser in >> http://www.squeaksource.com/GenomeTools.html for an example of a SAX >> Parser. >> >> XML token types: >> Start element: <Hit>.... >> End element: ...</Hit> >> Text: <...>Text value</...> >> etc. >> >> For DOM usage examples you may see >> http://community.ofset.org/index.php/Les_bases_de_XML_dans_Squeak (it >> is in french but is a good document) >> >> What we have in Pharo/Squeak >> >> Parsers: >> 1) XMLParser : Supports SAX and DOM. http://www.squeaksource.com/XMLSupport.html >> 2) VWXML Parser : Supports SAX and DOM (AFAIK) >> http://www.squeaksource.com/VWXML.html >> 3) XMLPullParser : Supports StAX. http://www.squeaksource.com/XMLPullParser.html >> >> XML Query tools >> 1) Pastell : Supports X-Path like queries. Requires XMLParser. >> http://www.squeaksource.com/Pastell.html >> 2) XPath library : Supports XPath partially. Requires XMLParser. >> http://www.squeaksource.com/XPath.html >> >> There are several additional tools in SqueakSource but I haven't reviewed yet. >> A VTD parser would be ideal for Smalltalk because it uses integer >> arrays reducing the object allocation overhead in memory. I haven't >> found implementations of a XML VTD parser in Smalltalk as of today. >> Cheers, >> Thanks, -- Larry Gadallah, VE6VQ/W7Â Â Â Â Â Â Â Â Â Â Â Â Â lgadallah AT gmail DOT com PGP Sig: 917E DDB7 C911 9EC1 0CD9Â C06B 06C4 835F 0BB8 7336

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Re: [Pharo-project] [Pharo-users] Where do I find KeyedSet?
by HernÃ¡n Morales Durand Jan. 17, 2011

Jan. 17, 2011

Hi Stef 2011/1/15 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: > > On Jan 14, 2011, at 6:24 PM, HernÃ¡n Morales Durand wrote: > >> Try PluggableSet >> >> http://www.mail-archive.com/pharo-project@lists.gforge.inria.fr/msg22890.ht… >> >> Is there a way for you guys to deprecate deleted classes or mantain a >> record of deleted behaviors? (IIRC VW did this from 2.x versions) > > We try but we do not have the engineers of VW. > Now find somebody that pay us just 3 engineers full time for two years and you will not > recognized pharo and its process. I know we are very few, but what about this idea, instead of just deleting a class we may adopt these simple rules: 1 - If deleting a class add the deleted class name somewhere (in a method?) 2 - If renaming a class, make the class to know its previous names like #previousNames (Norberto Manzanos implemented this for his own package management and I think is a great idea) doesn't require tools, just some consensus and maybe a modified #deleteClass to enforce this "policy" it sounds feasible for you? what do you think? HernÃ¡n

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Re: [Pharo-project] new Cog VMs
by mkobetic＠gmail.com Jan. 17, 2011

Jan. 17, 2011

I'm probably doing something obviously wrong, but I have no luck with the Cog VM. It crashes immediately on startup even with the stock OneClick image. I downloaded the Pharo-1.1.1 OneClick images. Fetched the latest coglinux.tgz (r2340), untarred it into the pharo directory and just trying to run it from the top-level pharo directory as: coglinux/squeak Contents/Resources/pharo.image crashes immediately (with or without the -vm-display-X11 option). This is on latest Fedora 14. The old VM seems to have no problem when I try to run it the same way: Contents/Linux/squeakvm Contents/Resources/pharo.image seems to start just fine. I can copy the stack dump from the crash, but since most seem to be running fine, I suspect I'm just not doing it right. What am I missing ? Thanks, Martin "Eliot Miranda"<eliot.miranda(a)gmail.com> wrote: > there are new versions of both the SimpleStackBasedCogit and the > StackToRegisterMappingCogit Cog VMs in > VM.r2339/<http://www.mirandabanda.org/files/Cog/VM/VM.r2339/> > & VM.r2340/ <http://www.mirandabanda.org/files/Cog/VM/VM.r2340/> respectively. > These contain fixes for rounding bug causing underestimate of openPICSize > and resultant hard crashes, seen e.g. by trying to recover lost changes in a > Pharo 1.2 image installed on c:\pharo. If you're trying to reproduce Cog > crashes please upgrade to one of tthese two VMs.

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[Pharo-project] [update 1.2] #12309
by Marcus Denker Jan. 17, 2011

Jan. 17, 2011

12309 ----- Issue 3542: Add SmalltalkImage>>#gcBiasToGrow: and friends to core -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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[Pharo-project] pharogenesis
by Max Leske Jan. 17, 2011

Jan. 17, 2011

Hi everyone. For those of you who followed my github repository for pharogenesis, please note that I moved it to github.com/pharogenesis/pharogenesis. I deleted the old repository. Cheers, Max

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[Pharo-project] 502 Bad Gateway
by HwaJong Oh Jan. 17, 2011

Jan. 17, 2011

I have this error while copying mcz file from my directory repo to pharoInbox. It was working well a minute ago. 'HTTP/1.1 502 Bad Gateway Date: Mon, 17 Jan 2011 02:20:01 GMT Server: Apache/1.3.41 (Darwin) mod_jk/1.2.6 mod_ssl/2.8.31 OpenSSL/0.9.7l PHP/4.4.9 Last-Modified: Fri, 22 Dec 2006 12:14:34 GMT ETag: "ee86f-a68-458bcc2a" Accept-Ranges: bytes Content-Length: 2664 Connection: close Content-Type: text/html<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <link rel="stylesheet" type="text/css" href="/squeaksource/style.css" /> <meta name="verify-v1" content="aYJ5chz2x0fRQuxMBS4pW+Ikb7hgtaBsysf18Fbt3q8=" /> <title>SqueakSource</title> </head> <body> <div id="container"> <div id="top"> </div> <div id="sstoolbar"> http://www.squeaksource.com/ Home http://www.squeaksource.com/ Projects http://www.squeaksource.com/ Tags http://www.squeaksource.com/ Members http://www.squeaksource.com/ Groups http://www.squeaksource.com/ Help </div> <div id="page"> <div id="navigation"> <div class="title"> Actions </div> <div class="item"> http://www.squeaksource.com/ Refresh </div> </div> <div id="contents"> <h1>SqueakSource Down</h1> <p style="font-weight: bold; margin-left: 20px; margin-right: 220px; line-height: 1.5em"> SqueakSource is currently down. We are sorry for the inconvenience and working on the problem. In the meantime you can still commit to a directory repository on your disk and later copy the versions to SqueakSource.</p> <p>This service is brought to you for free: it is backed up daily. Still, please make sure that you have your own proper backups and note that we cannot give any accessibility guarantees. However, if you wish you can set up your own SqueakSource server. It is self-hosted and can be downloaded from SqueakMap.</p> <p>Please report any problems or suggestions to the Squeak http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/squeak-dev Mailing-List . Enjoy!</p> <p>We gratefully acknowledge the support of the http://www.iam.unibe.ch/%7Escg/ Software Composition Group and the http://www.unibe.ch/ University of Bern for hosting this service.</p> </div> <div id="bottom"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td align="left"> http://validator.w3.org/check/referer XHTML | http://jigsaw.w3.org/css-validator/check/referer CSS </td> <td align="right">It''s a sad day</td> </tr> </table> </div> </div> </body> </html> ' -- View this message in context: http://forum.world.st/502-Bad-Gateway-tp3220636p3220636.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

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