Beginners August 2016

beginners@lists.squeakfoundation.org

12 participants
9 discussions

Raw sockets (was: New Introductory Tutorial)
by Bert Freudenberg 29 Aug '16

29 Aug '16

To look at all traffic you need a "raw socket". Our SocketAddressInformation class only specifies socketTypeDGram and socketTypeStream, but not socketTypeRaw. However, there is a "primitiveSocketCreateRAW" in the VM's SocketPlugin. In the image, I only see references to "primitiveSocketCreate". So there might be a way to do it, but the code appears to not be in the image. - Bert - On Fri, Aug 26, 2016 at 7:33 AM, Dennis Groves <dennis.groves(a)gmail.com> wrote: > I would like to do network traffic analysis with Squeak, however All I can > find are socket and http objects is there an object for looking at all the > traffic on a given interface? > > Cheers, > > Dennis > > -- > Dennis Groves <http://about.me/dennis.groves>, MSc > dennis.groves(a)gmail.com > >> >>

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Kedama (Re: [Newbies] [ANN] Squeak 5.1 released; www.squeak.org; Trunk open again)
by H. Hirzel 29 Aug '16

29 Aug '16

On 8/25/16, Bert Freudenberg <bert(a)freudenbergs.de> wrote: > On Wed, Aug 24, 2016 at 7:19 PM, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > >> On 8/24/16, Offray Vladimir Luna Cárdenas <offray(a)riseup.net> wrote: >> > Thanks a lot! Seeing Kedama, >> >> Hello Offray >> >> The object tool offers a 'Kedama World' in the category 'Kedama'. >> >> But no other tools / menus to start building simulations. >> >> It seems that the more code needs to be loaded .... >> >> Do you have any hints how to get started? >> > > It doesn't work right in 5.1 yet. But Tim Felgentreff just (at ESUG in > Prague) demonstrated a 5.1-based Etoys image that has pretty much all the > Etoys code of the Squeakland image, and Kedama works in there. Running on > the Spur VM it's even fast enough without the Kedama plugin (which was > needed in the interpreter VM). > > We intend to release this later this year, but for now I'd recommend the > Squeakland version to play with Kedama. > > - Bert - http://www.squeakland.org/download/ 500 Servlet Exception java.lang.NullPointerException at _jsp._download._index__jsp._jspService(/download/index.jsp:39) :-( --Hannes

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New Introductory Tutorial
by EuanM 26 Aug '16

26 Aug '16

I've created Yet Another Smalltalk First Steps tutorial. This is intended as one of a series. It is designed to be cross-platform across Squeak 5 Pharo 4 Seaside 3.1 Cuis Dolphin 6 If you have experience running any of these systems on Windows, Linux or MacOS, please check to see if I have the instructions correct for your chosen pairing of Smalltalk and OS platform. (As you'll see when you look, I do not have detailed instructions for aspects of MacOS). The document is at: http://smalltalkinsmallsteps.blogspot.co.uk/2015/11/get-smalltalk-up-and-ru… (It's intended to move to a different blog after this review process). I feel the need to do this as cross-Smalltalks tutorial because of findings and 4 charts I've placed at: http://smalltalkinsmallsteps.blogspot.co.uk/2015/11/mindshare-of-smalltalk-… Essentially, Smalltalk mindshare and use is incredibly tiny, compared to other languages in the same space. (We all know this, but seeing it represented graphically has a more visceral effect, IMO) Aggregating interest in all the Smalltalks still does not bring more than a tiny proportion of the interest in, and use of, Ruby. In turn, Ruby is (quite understandably) small in comparison to JavaScript. Comparing interest in any specific Smalltalk is, predictably, smaller than the aggregate interest in Smalltalk. Our community seems determined to split itself into smaller and smaller sub-communities. I think we do ourselves a disservice this way. My initial contribution will be to try to provide some explicitly pan-Smalltalk beginners' tutorials, like this one. Cheers, and happy Smalltalking, EuanM

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[ANN] Squeak 5.1 released; www.squeak.org; Trunk open again
by Marcel Taeumel 25 Aug '16

25 Aug '16

We are happy to announce the release of Squeak 5.1! Visit the Website [1], read the release notes in the image or outside [2], and try it out for yourself [3][4]! Thank you all for the contributions! :-) Happy birthday Squeak! It has been (almost) 20 years!!! [5] Best, Marcel [1] http://www.squeak.org/ [2] https://github.com/squeak-smalltalk/squeak-app/blob/master/release-notes/5.1 [3] http://files.squeak.org/5.1/ [4] http://try.squeak.org/ (to be updated soonish) [5] http://files.squeak.org/docs/OOPSLA.Squeak.html

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Project on squeak language
by roger mpouma 23 Aug '16

23 Aug '16

Hello, I need help for a drawing project on Squeak. I'd like implement a canvas on which we draw with the possibility of drawing with brush changing the color and size of the brush. Is it possibile to have help ? Thank you in advance.

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printf not working on 5.0
by Joseph Alotta 12 Aug '16

12 Aug '16

Greetings, I was using printf extensively, but when I migrated to 5.0 printf does not work. I filed out the package and filed it back in, but the compiler can’t find it. '%8.1f' class ==> ByteString '%6.2e' printf: 412.343434 >> MessageNotUnderstood: ByteString>>printf: Help! Sincerely, Joe.

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Version 5.0 running hot
by Joseph Alotta 12 Aug '16

12 Aug '16

I just switched from version 4.3 to 5.0. I like the new features, thank you. But I have 5.0 running, hidden from my desktop, and I am reading my mail. I notice the laptop is getting very warm on the bottom. I look at the Activity Monitor and find that Squeak 5.0 accounts for 50% of my processing load. (I have 4 cores, so I think it is 50% of all 4.) When I save and quit Squeak, it immediately starts to cool off. Again, Squeak 4.3 could run hidden in a window and never affect my power consumption. What is 5.0 doing that 4.3 is not? Sincerely, Joe.

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Re: General Questions to the Squeak Community
by Joseph Alotta 03 Aug '16

03 Aug '16

> > 1. The community seems TINY for such a cool project. At this point it seems to mainly consist of people in academics and "old-timers" that have stuck around since a time when Squeak was more popular. Is this correct or am I maybe not looking in the right places? > > It seems a shame if such an amazing project were to die out because of lack of popularity, considering all the possibilities that this level of intractability with the programming environment enables. I’m trying to change that. I’ve started a meetup group in the Chicago area for learning Squeak. I am hoping to have a lot of young people get interested in it. I have programmed in many languages and I find smalltalk to be the easiest to read and understand. I’ve written code in come languages, that 6 months later was completely foreign to me. I couldn’t remember what I was thinking when I wrote it, nor even if I wrote it. With smalltalk, I don’t find that. I actually enjoy programming. Sincerely, Joe. -- View this message in context: http://forum.world.st/General-Questions-to-the-Squeak-Community-tp4909374p4… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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mix ins
by Joseph Alotta 03 Aug '16

03 Aug '16

Greetings, I want to add a method to the Array class. #(‘abc’ ‘def’) join => ‘abcdef’ #(‘abc’ ‘def’) join: $/ => ‘abc/def’ I am afraid that if I add it to Array directly, it will get lost in a new update. I want to keep it in my project area. In ruby, this is called a “mix in”. How can I do this? Sincerely, Joe.

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Beginners August 2016