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

[Pharo-project] Fwd: [squeak-dev] OB performance (Re: Slime)

by Mariano Martinez Peck

Thanks Andreas :) Lukas, do you think this is worth? ---------- Forwarded message ---------- From: Andreas Raab <andreas.raab(a)gmx.de> Date: Wed, Apr 7, 2010 at 5:25 AM Subject: [squeak-dev] OB performance (Re: Slime) To: The general-purpose Squeak developers list < squeak-dev(a)lists.squeakfoundation.org> On 4/3/2010 2:22 PM, Colin Putney wrote: > > On 2010-04-03, at 11:50 AM, Andreas Raab wrote: > > On 4/3/2010 11:27 AM, Levente Uzonyi wrote: >> >>> On Sat, 3 Apr 2010, Andreas Raab wrote: >>> >>>> Interesting. My encounters with OB mostly originate from Pharo where >>>> it's always been dog-slow so I was never interested in looked deeper. >>>> Any ideas how to install OB without that stuff? >>>> >>> >>> Try this: >>> >> >> Thanks. It's definitely better than I remembered. I'm still noticing a >> real delay in some areas though, for example when I click on a system >> category. One thing you can try to test this is to open a regular browser >> and OB and then just keep scrolling through the system categories with >> cursor up or cursor down. In the regular browser this entirely smooth; in OB >> it's "stuttering" and at least I notice the same delay when clicking on the >> list. >> > > Yeah, this one area where OB is certainly not as fast. That's because OB > sorts classes according to inheritance, rather than name. It's just more > work. I find the tradeoff worthwhile - it's not that slow, and the extra > information imparted by the sort order is useful - but reasonable people may > disagree. It wouldn't be hard to make this a preference. > Nope it's not that. A bit of profiling shows the particular problem is caused by some gross inefficiencies when updating. If you file in the attached tweaks, OB scrolls just as smoothly as the standard browser. I'm not sure if the tweaks have side effects though; you might want to verify that (in particular because of the comment in OBColumn>>switchFilter: which indicates some interference although I can't see how that could make a difference if the filter is identical). Cheers, - Andreas

April 7, 2010

[Pharo-project] todo after 1.0 is released

by StÃ©phane Ducasse

Hi Adrian Once 1.0 is released we should check that all the fixes that went in 1.0 after the fork to 1.1 are integrated in 1.1. Would be nice also to remove the testsexpected to break so that we give them a chance to be fixed in 1.1. Stef

April 7, 2010

Re: [Pharo-project] Redline Smalltalk

by Mariano Martinez Peck

> > >> Dan, Mariano for his PhD did some analysis about number of object used > during typical coding session and we got around 17 %. > >> So mariano would like to see how we can get something like LOOM to > dispose unused objects :) > > > > Are you aware of the work I did that enables class fault detection in > Squeak? > > Yes :) > MDFault that hijack the method category > > But now it is in a separate package: http://www.squeaksource.com/ClaseUseDiscovery > > If a class has a nil methodDictionary, it causes a fault (ie it sends > recoverFromMDFault to the class). That code then restores the MD in > addition to any anyalysis you want. I never cleaned it up for posterity, but > it enabled lots of interesting work... > > The problem is that we did some experiences (not too advance with mathieu) > and we got all the classes touched after a couple of seconds. > > > By nilling all but a few MDs, and then running some application, > you could > > tell exactly what classes were needed and which were not. > > See the method discoverActiveClasses. > > A special feature even recorded the call stack that caused each > class to be > > touched. > ok this one I was not aware. > I was ;) you can read how to enable that trance and see the results, in the class comment of CUDClassesUseDiscoverer And also in the tests. > > What I was doing was restructuring the entire system as a bunch of > > image segments that could be swapped out and brought in > > on demand -- a sort of user-programmable swapping memory. > > What mariano did so far is to > - read all the image segments code /c included > - find it dangerous > As we discussed recently: http://n4.nabble.com/The-Pharo-Linux-Vm-WAS-Squeak-VM-FT2Plugin-all-Pharo-1… ImageSegment primitives and the VERY core is working well. The problem is all what is/was implemented on top of that for Project and friends. > - clean the project and etoy related code (for me the simple fact > that you have all the special cases for projects > reveals that there is a deeper fundamental problem. I do not have > the answer but normally the "swapouter" should be generic > and may be provide hooks for specific cases but not do that in the > logic itself. > - define some primitive to use the extra bit to collect some measure > of object used. > - read / understand loom + the same in Java in OOPSLA 2008 > This paper is very related to what we are talking about: http://www.cs.utexas.edu/~mikebond/melt-oopsla-2008.pdf > > Another problem was the size of array which may be double or triple than > what you want to save mariano will be more precise than me. > > This, this was a minor problem. But if you want to use ImageSegment for REALLY big segmentes (Like DabbleDB) you may have a problem as ImageSegment allocates 2 or 3 times the size of the array....maybe adding a primitive to do that directly in disk (of course it will be slower) could be a good idea. Cheers Mariano > > > > > > > - Dan > > > >> > >>> James Ladd <james_ladd(a)hotmail.com> wrote... > >>>>> Hi Pharo-ites, > >>>>> > >>>>> I'm working on a port of Pharo to the Java Virtual Machine called > Redline Smalltalk. > >>>>> (read more here: http://jamesladdcode.com/?p=323) > >>>>> > >>>>> I'm wanting to port every single class over time, but initially > enough to get the > >>>>> compiler working and have a minimum runtime. > >>>>> > >>>>> Of the 1600+/- classes which are those necessary to make a small > workable compiler > >>>>> and runtime environment? > >>> > >>> Hi, James - > >>> > >>> Bert Freudenberg forwarded this along to me, as I'm not on a Pharo > mailing list. > >>> > >>> I think you know of my JSqueak project (a.k.a. Potato) -- a Squeak VM > written in Java. The image that I used with it, is the same that I always > use for this kind of experiment -- mini.image built in Squeak 2.2. > >>> > >>> The reason it is so cool is that it includes browser, editor, compiler, > inspector debugger, and files -- everything you need for self-support. Plus > it has the decompiler, and special temp-name hack, so you can actually > browse sources with temp names before any file system works. My favorite > thing about this image is that although it is only 600k, if you decompile > all its sources, it comprises over 850k of Smalltalk, so it's like a > compressed version of the sources with a full-function IDE thrown in for > free ;-). > >>> > >>> As I said, the image is about 600k, of which 240k is code -- 202 > classes (x2 if you count the metas) with 4590 methods. This should be a > good guide for you in choosing classes to start with. > >>> > >>> You can actually run this image live in JSqueak on the web if you have > Java installed and the planets are aligned correctly... > >>> http://Weather-dimensions.com/Dan/JSqueak.jnlp > >>> Another interesting statistic is that the Java .jar file is only 433k, > including not only the VM, but also the entire image! This is possible > because the image is so small that the pointers in it are mostly zeroes, so > it compresses nicely. I just checked that this runs, and was happy to see > that it putts along at 21 million bytecodes/sec on my laptop. > >>> > >>> I haven't looked recently, but I think you'll find Mini2.2.image or > something like it in the same place where all the historical releases of > Squeak are kept. Let me know if you can't find it. > >>> > >>> Have fun with your project! I hope this helps > >>> > >>> - Dan > >>> _______________________________________________ > >>> Pharo-project mailing list > >>> Pharo-project(a)lists.gforge.inria.fr > >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > >> > >> > >> _______________________________________________ > >> Pharo-project mailing list > >> Pharo-project(a)lists.gforge.inria.fr > >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > > > > _______________________________________________ > > Pharo-project mailing list > > Pharo-project(a)lists.gforge.inria.fr > > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

April 7, 2010

Re: [Pharo-project] Redline Smalltalk

by Mariano Martinez Peck

> > Are you aware of the work I did that enables class fault detection in > Squeak? > > If a class has a nil methodDictionary, it causes a fault (ie it sends > recoverFromMDFault to the class). That code then restores the MD in > addition to any anyalysis you want. I never cleaned it up for posterity, but > it enabled lots of interesting work... > > By nilling all but a few MDs, and then running some application, you > could > tell exactly what classes were needed and which were not. > See the method discoverActiveClasses. > A special feature even recorded the call stack that caused each > class to be > touched. > What I was doing was restructuring the entire system as a bunch of > image segments that could be swapped out and brought in > on demand -- a sort of user-programmable swapping memory. > This all worked at one point. Swapping of projects was a bit > flakier > because of our weak discipline on pointer scope, but it > even worked in many cases. > > Where I was going with the whole "reorganizeEverything" project was that > the SystemDictionary would be partitioned into many separate dictionaries in > each project, and that namespaces would be the same as the project swapping > unit, and the whole thing would be simple and fast. It actually worked once > (;-) also. > > Loom was cool, but it could never come close to the speed of imageSegments. > I played around with swapping out the entire VM Support category with all > classes and methods, and it would swap in the entirety in less than 200 > milliseconds, and this was a decade ago. > > Sorry for the long digression, but maybe some of this thinking or even the > actual mechanism can be of use to your experiments. > > Hi Dan. First let me say that it is really cool to have you in the list :) Yes, I know about that MD faults and I did some experiments with it. As part of my work, I remove that from core and I put it in a separate package. I also rewrite some things a little. I invite you, if you want/have time to look at it. It is in http://www.squeaksource.com/ClaseUseDiscovery You can see the class comments of CUDClassesUseDiscoverer and also the CUDClassesUseDiscovererTest This tool is working perfect. I sent an email some weeks ago: http://n4.nabble.com/ANN-ClaseUseDiscovery-tool-td1296859.html#a1296861 Now, my conclusions were that it is a great tool but it has the problem that when ever you do a Smalltalk allClassesDo or similar, it brings all the classes back. I saw there was the *gentlly* so that you could do allClassesDoGently etc and the gently checks for isInMemory, where in ImageSegmentRootStub answers false. The problem is that you have to put those gently everywhere and once you forget about that....you are dead. The other problem is the gradunalirity. I mean, even when sending a simple message to a single object of a class, the whole class is loaded. Even with all that, it was great to see and have in mind a percentage of the used classes against different scenarios. Cheers Mariano > - Dan > > > > >> James Ladd <james_ladd(a)hotmail.com> wrote... > >>>> Hi Pharo-ites, > >>>> > >>>> I'm working on a port of Pharo to the Java Virtual Machine called > Redline Smalltalk. > >>>> (read more here: http://jamesladdcode.com/?p=323) > >>>> > >>>> I'm wanting to port every single class over time, but initially enough > to get the > >>>> compiler working and have a minimum runtime. > >>>> > >>>> Of the 1600+/- classes which are those necessary to make a small > workable compiler > >>>> and runtime environment? > >> > >> Hi, James - > >> > >> Bert Freudenberg forwarded this along to me, as I'm not on a Pharo > mailing list. > >> > >> I think you know of my JSqueak project (a.k.a. Potato) -- a Squeak VM > written in Java. The image that I used with it, is the same that I always > use for this kind of experiment -- mini.image built in Squeak 2.2. > >> > >> The reason it is so cool is that it includes browser, editor, compiler, > inspector debugger, and files -- everything you need for self-support. Plus > it has the decompiler, and special temp-name hack, so you can actually > browse sources with temp names before any file system works. My favorite > thing about this image is that although it is only 600k, if you decompile > all its sources, it comprises over 850k of Smalltalk, so it's like a > compressed version of the sources with a full-function IDE thrown in for > free ;-). > >> > >> As I said, the image is about 600k, of which 240k is code -- 202 classes > (x2 if you count the metas) with 4590 methods. This should be a good guide > for you in choosing classes to start with. > >> > >> You can actually run this image live in JSqueak on the web if you have > Java installed and the planets are aligned correctly... > >> http://Weather-dimensions.com/Dan/JSqueak.jnlp > >> Another interesting statistic is that the Java .jar file is only 433k, > including not only the VM, but also the entire image! This is possible > because the image is so small that the pointers in it are mostly zeroes, so > it compresses nicely. I just checked that this runs, and was happy to see > that it putts along at 21 million bytecodes/sec on my laptop. > > > > >> I haven't looked recently, but I think you'll find Mini2.2.image or > something like it in the same place where all the historical releases of > Squeak are kept. Let me know if you can't find it. > >> > >> Have fun with your project! I hope this helps > >> > >> - Dan > >> _______________________________________________ > >> Pharo-project mailing list > >> Pharo-project(a)lists.gforge.inria.fr > >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > > > >_______________________________________________ > >Pharo-project mailing list > >Pharo-project(a)lists.gforge.inria.fr > >http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

April 7, 2010

Re: [Pharo-project] FFI+Linux+double return value

by Schwab,Wilhelm K

Sig, Sounds like a good idea - thanks!! Bill -----Original Message----- From: pharo-project-bounces(a)lists.gforge.inria.fr [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Igor Stasenko Sent: Wednesday, April 07, 2010 12:30 AM To: Pharo-project(a)lists.gforge.inria.fr Subject: Re: [Pharo-project] FFI+Linux+double return value On 7 April 2010 01:12, Schwab,Wilhelm K <bschwab(a)anest.ufl.edu> wrote: > Nicolas, > > I tried, and it has not been smooth. Â What exactly do you mean by the library path? Â Perhaps the easiest way to answer my question is to tell me which libraries should be found there. Â Will the vm no longer use absolute paths in #moduleName? > > I moved on to the RC3 one-click image and am trying to figure out how to point its vm at my image - can't hurt. > Check that a library, you trying to load is listed in ldconfig -p If its not, then add path to it in /etc/ld.so.conf file, so you won't need to specify it in LD_LIBRARY_PATH all the time. > Bill > > > > > -----Original Message----- > From: pharo-project-bounces(a)lists.gforge.inria.fr > [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of > Nicolas Cellier > Sent: Tuesday, April 06, 2010 5:07 PM > To: Pharo-project(a)lists.gforge.inria.fr > Subject: Re: [Pharo-project] FFI+Linux+double return value > > 2010/4/6 Schwab,Wilhelm K <bschwab(a)anest.ufl.edu>: >> Hello all, >> >> I built (I think) a 2151 vm, but I can't run it. Â It keeps >> complaining that it can't find the X11 display driver. Â What am I >> missing about the command line options? Â I generally try to use >> >> Â /full-path-to-vm/squeakvm options /full-path-to-image >> >> Help?? >> >> Bill >> > > Unless you add some specific home made plugin, you should better use latest squeak vm, after setting the LD_LIBRARY_PATH to point to your library path. Did you try ? > > Nicolas > >> >> -----Original Message----- >> From: pharo-project-bounces(a)lists.gforge.inria.fr >> [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of >> Schwab,Wilhelm K >> Sent: Tuesday, April 06, 2010 3:05 PM >> To: Pharo-project(a)lists.gforge.inria.fr; The general-purpose Squeak >> developers list >> Subject: Re: [Pharo-project] FFI+Linux+double return value >> >> Nicolas, >> >> I am running this on Ubuntu (9.10) and have been using the Pharo 0.15.2f vm. Â I just tried a Squeak vm (3.11-3) and could not get it to load my library. Â I have been using an absolute path the the .so; could that be the problem with the Squeak vm?? >> >> There has been a lot of discussion of the Pharo Linux vm lately, with some links and corrections, so I'll have to look around a little. >> >> You asked if I can check the vm sources; the concern is whether or not I will have anything to add :) Â Is there something specific you want me to do? >> >> Bill >> >> >> -----Original Message----- >> From: pharo-project-bounces(a)lists.gforge.inria.fr >> [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of >> Schwab,Wilhelm K >> Sent: Tuesday, April 06, 2010 1:46 PM >> To: Pharo-project(a)lists.gforge.inria.fr; The general-purpose Squeak >> developers list >> Subject: [Pharo-project] FFI+Linux+double return value >> >> Hello all, >> >> I had some strange results with double return values and boiled it >> down to a C function >> >> Double AnyDouble() >> { >> Â Â Â Â return 1.0; >> } >> >> called via >> >> Â anyDouble >> Â < cdecl: double 'AnyDouble' () > >> >> and driven by >> >> | out | >> out := Array writeStream. >> 100 timesRepeat:[ >> Â out nextPut:Library default anyDouble ]. >> out contents. >> >> The results are not good. Â It works for the first three elements, after which it produces NaN. Â The real problem appears to be comparison of floats being broken after that point, as evidenced by a walkback that arises when trying to inspect the resulting collection - exploring it works. >> >> I need to try this on the latest image/vm, but wanted to start gathering opinions. Â Any ideas? >> >> Bill >> >> >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- Best regards, Igor Stasenko AKA sig. _______________________________________________ Pharo-project mailing list Pharo-project(a)lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

April 7, 2010

Re: [Pharo-project] CollabActive book :)

by StÃ©phane Ducasse

tx On Apr 7, 2010, at 9:17 AM, Lukas Renggli wrote: >> I see what you mean, but I don't like the way it is displayed, because it makes navigating from section to section cumbersome and just skimming a chapter to get an overview is difficult. > > While writing/editing the Seaside book we figured out the following > simple guidelines that worked out quite well: > > http://book.seaside.st/system/howto > > Lukas > > -- > Lukas Renggli > www.lukas-renggli.ch > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

April 7, 2010

Re: [Pharo-project] CollabActive book :)

by StÃ©phane Ducasse

tx On Apr 7, 2010, at 10:29 AM, Tudor Girba wrote: > Hi, > > The toolbar is now available. > > Cheers, > Doru > > On 7 Apr 2010, at 01:14, Simon Denier wrote: > >> >> Also what is missing is the handy toolbar which provides buttons to decorate the text with Pier syntax. Useful when you are not a pro of the syntax. But I don't know how to install this widget. >> > > -- > www.tudorgirba.com > > "Value is always contextual." > > > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

April 7, 2010

Re: [Pharo-project] Handle Close Event in Image - necessary for 1.0?

by StÃ©phane Ducasse

Thanks Henrik this is something I understand. I will integrate that for 1.1 Now adrian is polishing 1.0 so we will see what will happen. Stef On Apr 7, 2010, at 10:35 AM, Henrik Johansen wrote: > > On Apr 6, 2010, at 10:48 19PM, StÃ©phane Ducasse wrote: > >> Torsten I appreciate your effort but we can only do what can be done in the time >> we can allocate to do a task if you see what I mean. >> I cannot test on windows because we do not have a windows machine. We are doing an incredible >> amount of work but we cannot do more than it is reasonable to do. >> >> Then in freeze time this is freeze time. we will try to get shorter iteration cycles and this is not >> by delaying 1.0 that we are making progress on that front. >> >> And this is not by saying that pharo "will be less quality than" ... more or less that it helps. >> >> So 1.0 will be like it can. And if people bash us this is ok too. >> You remember a while ago one guy asked who is ready to pay 10 Euros per month to have a >> better pharo and we got 6 persons.... >> >>> However I still believe that fixing this in 1.0 would not only >>> be a plus - it will also prevent questions regarding this >>> new problem since people WILL use newer VM's after the >>> first 1.0 release of Pharo and then instantly step into the problem! >>> >>> >>> And it is not a Windows specific problem as Stef thinks it is. >>> >>> Bert requested John today (see [1]) to change the default for Mac too ... >> >> TODAY. Imagine I was painting my house.... and this evening this would have to be fixed? >> When is the last time that a bug that annoys you on windows got fixed in one day? >> because for me on mac so far it took months. >> >>> so if you upgrade your Mac VM for whatever reason (maybe to do >>> 1.1 work or since you need a newer VM for a commercial project) >>> then you will step into this with the 1.0 image. >> >> Yes and since you are a good pharoers you will know and you will understand >> and help us and help yourself. > > I've put some slices based on the .cs in the inbox, one for 1.0 and one for 1.1. (quitSession was moved to WorldState in 1.1, and some other minor diffs) > I've also tested and can confirm they work with the newest Windows VM, not sure about the behavior on Linux, which apparently was updated as well. > > > Cheers, > Henry > > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

April 7, 2010

Re: [Pharo-project] Linux Pharo VM on Pharo website

by StÃ©phane Ducasse

laurent if you want register using the rmod team and let me know so that I add you to the pharo project. stef On Apr 7, 2010, at 9:09 AM, laurent laffont wrote: > On Wed, Apr 7, 2010 at 9:07 AM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > thanks laurent > > Do you have an account in the inria gforge? > > No > > Laurent Laffont > > > On Apr 7, 2010, at 8:34 AM, laurent laffont wrote: > > > Hi, > > > > I've prepared the following archive. It may replace the "Unix (3.11-3)" download link. > > > > http://lolgzs.free.fr/pharo/squeak-vm/squeak-3.11.3.2151-pharo-src.tar.gz > > > > In this archive: > > > > - patched squeak-vm rev. 2151. (The 2 patches are for FT2Plugin build and multiple options in CFLAGS to work. Patchs in archive). > > - awk gnuification > > - README with instructions to build and regenerate this source from VMMaker > > - All Pharo-1.0 tests green (on my machine ...) > > - it has been built/tested by several people in order to send me tinyBenchmark results :) > > > > The tinyBenchmarks are not as good as Exupery one, but this vary a lot depending on the CPU. > > > > Cheers, > > > > Laurent Laffont > > _______________________________________________ > > Pharo-project mailing list > > Pharo-project(a)lists.gforge.inria.fr > > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

April 7, 2010

Re: [Pharo-project] CollabActive book :)

by Michael Roberts

Thanks Doru. I will take a look. I think I was doing as you describe. I will try again. Perhaps the spaces were a problem. Lukas - thanks for those notes! Mike On Tuesday, April 6, 2010, Tudor Girba <tudor.girba(a)gmail.com> wrote: > Hi Mike, > > I am not sure I understand what the problem is. > > Try this: > # go to a page: http://book.pharo-project.org/book/introduction > # invoke Add > # enter a name (e.g., "somepage") and select Book Portion > # press add > > This should create a new section in the introduction. Please let me know if it works for you. > > Cheers, > Doru > > On 6 Apr 2010, at 23:24, Michael Roberts wrote: > > > Hi, > > is there some brief documentation for how to use the book engine? I am > not a pier expert, i just get the basic ideas. Â I tried to add some > new pages/sections using the add command, but it kept on logging me > out to the front page. Â I could not work out whether these actions had > any side-effect or not. Â If there are no docs, perhaps someone > knowledgeable could just add a page, showing how to add a page... > > thanks, > Mike > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > -- > www.tudorgirba.com > > "Every thing has its own flow." > > > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

April 7, 2010