Squeak-dev January 1999

squeak-dev@lists.squeakfoundation.org

143 participants
293 discussions

Re: Good references covering Smalltalk-80
by Bruce O'Neel 07 Jan '99

07 Jan '99

Hi, My name is Bruce and yes, I'm a bibliophile :-) The 4 books I've been using are: The Purple Book - Smalltalk 80 : The Language by Goldberg and Robson. Well, I'm only part of the way through it. Smalltalk by Example - Sharp. Good, covers the language well. Doesn't cover the GUI bits. On to Smalltalk - Winston. Also good. Nice small book and I got more than from Smalltalk by Example. OTOH, I did all the examples up to the GUI chapters on Squeak. Inside Smalltalk V2 by LaLonde and Pugh. Working on this to learn how to write MVC GUI programs. My recommendations? Get either Smalltalk by Example or On to Smalltalk to learn the basics. Then, if you have anything somewhat fast, learn Morphic by taking apart say Scamper. Morphic looks easier than MVC. The only reasons that I'm learning MVC are that my carry around system is a 33mhz 68LC040 where Morphic is just a bit too slow, and, I'm interested in ports to smaller systems which may not have very much memory. cheers bruce Brian <briank(a)hex.net> wrote: > > Tim-- > > Been there, done that. I want a more detailed overview of Smalltalk > than what the links provide. The tutorials I've come across are simply > too brief to allow me to do anything useful with Squeak... > > --Brian > > Tim Rowledge wrote: > > > > On Wed 06 Jan, Brian wrote: > > > Can anybody suggest a few good reference books on Smalltalk-80? I > > > program in C++, so I'm familiar with OO concepts. Plus, I learn better > > > by example, so would be greatly interested in references with lots of > > > annotated examples. > > Brian, start from http://squeak.cs.uiuc.edu/ and follow links from there. > > There are lots and lots of explicatory sources for Squeak nad Smalltalk in > > general. > > > > tim > > PS 'I program in C++, so I'm familiar with OO concepts.' - what a brave > > claim :-) :-) > > > > -- > > Useful random insult:- Moves his lips to pretend he's reading. > > Tim Rowledge: rowledge(a)interval.com (w) +1 (650) 842-6110 (w) > > tim(a)sumeru.stanford.edu (h) <http://sumeru.stanford.edu/tim> > > -- > ---------------------- > --Brian Koontz -- > --Routech, Inc. -- > --briank(a)routech.com-- > ---------------------- > > == Bruce O'Neel - beoneel(a)acm.org http://homepage.iprolink.ch/~bioneel The corporate culture is concerned less with Occam's razor than his aftershave lotion. -- R. L. Peskin <peskin(a)caip.rutgers.edu> _________________________________________________________ DO YOU YAHOO!? Get your free @yahoo.com address at http://mail.yahoo.com

1 0

AW: Expert Systems and Squeak
by Torsten Bergmann 07 Jan '99

07 Jan '99

I only know about a Prolog Goodie available for Squeak 2.0 at: http://www.sra.co.jp/people/aoki/SmalltalkGoodies/VisualWorks/Prolog.st http://www.sra.co.jp/people/aoki/SmalltalkGoodies/VisualWorks/Prolog.txt Torsten -----Ursprüngliche Nachricht----- Von: russell.allen(a)firebirdmedia.com [mailto:russell.allen@firebirdmedia.com] Gesendet am: Wednesday, January 06, 1999 12:56 AM An: squeak(a)cs.uiuc.edu Betreff: Expert Systems and Squeak Hi again, on a slightly different note, does anyone know any Smalltalk implementations of either an expert system engine, or alternatively logic packages (predicate etc - a la prolog)? thanks again, Russell

1 0

Re: Good references covering Smalltalk-80
by Harry E. Fassl 07 Jan '99

07 Jan '99

Brian wrote: > Can anybody suggest a few good reference books on Smalltalk-80? I > program in C++, so I'm familiar with OO concepts. Plus, I learn better > by example, so would be greatly interested in references with lots of > annotated examples. > > As much as I'd love to actually *use* Squeak, I've simply not been able > to find any tutorials on the Web which give me enough information to do > any type of real programming. > > Thanks... > > --Brian > > -- > ---------------------- > --Brian Koontz -- > --Routech, Inc. -- > --briank(a)routech.com-- > ---------------------- I'm a Smalltalk newbie myself. One excellent tutorial is to download Smalltalk Express and the accompanying PDF doc from http://www.objectshare.com. It's a freebie and will give you a decent introduction. (Windoze only) Granted it's not Squeak but I've found it helpful and has added to my understanding of the Smalltalk environment. (Coming from a write source/compile it/ run it practice myself.) Since going through it I can now find my way around the Squeak environment without much trouble. Be warned though that there are class & syntactic differences between the objectshare stuff and Squeak. But nothing too scary. On the dead tree list is "Smalltalk and Object Orientation" by John Hunt (Springer 1997), "On to Smalltalk" by Patrick Henry "shrdlu" Winston (Addison Wesley 1998) and the "purple book "Smalltalk-80" by Adele Goldberg & David Robinson. (Addison Wesley 1989). (Interesting that there are so many new titles on Smalltalk lately...hmmmm?) This "purple book" is required reading for Squeak. The Winston book has a great format with each chapter titled 'How to <do whatever>'. The Hunt book is one long tutorial, relating object orientation from a Smalltalk perspective, and more detailed than the Smalltalk Express tutorial. One thing I know for sure is that when I'm on the job I find myself wishing that the programming environment was more like Smalltalk. I'd get twice as much done and be 1/10th as frustrated. H.E. Fassl hefassl(a)mcs.net

2 1

Scripting (Re: GTalK 0.01)
by Marcel Weiher 07 Jan '99

07 Jan '99

[ UNIX Scripting, exporting object interfaces, AppleScript ] Shell scripts are great for connecting pipes/filters, they suck for programming, extensions. One of my goals has been to bring the power of pipes/filters to Squeak in a form that is just as convenient as UNIX shells while providing all the power of objects (see my previous posts). As to real scripting, a great reference for this is the work Apple is doing integrating AppleScript/Apple Events with Objective-C in MacOS-X-Server. They're really leveraging the extremely dynamic Objective-C runtime to provide a scripting interface that is almost wholly a by-product of creating a proper model/document object. Once my Objective-C bridge does call-backs it should be very easy to integrate this mechanism into Squeak in a transparent fashion, that is as if the native components were actually Squeak objects, because of the great similarity between Smalltalk and Objective-C. Once integrated and working, the native components can be incrementally replaced by real Squeak objects for those platforms without native support. Marcel

1 0

a decimal class for Squeak?
by Adam Bridge 06 Jan '99

06 Jan '99

Has anyone implimented a discrete decimal arithmetic class for Squeak? I'd sure like to steal it if you have! ab __ Adam Bridge Idea Processing

5 6

Re: a decimal class for Squeak?
by R. A. Harmon 06 Jan '99

06 Jan '99

At 12:07 PM 1/6/99 +0000, you wrote: >VisualWorks had the FixedPoint class which was designed to >handle these sorts of issues and was based on a rational representation. I used the same idea I saw in VWNC of using Fraction to implement an ANSI ScaledDecimal class in Squeak as part of a full Numeric protocol implementation. I'm currently test the Numeric protocol methods. -- Richard A. Harmon "The only good zombie is a dead zombie" harmonra(a)webname.com E. G. McCarthy

1 0

Re: Good references covering Smalltalk-80
by Asymptotically Approaching Harmony 06 Jan '99

06 Jan '99

Doug Way <dway(a)mat.net> writes: > Also, for a step-by-step tutorial with examples, it's hard to beat the > tutorial which came with Smalltalk/V (now Smalltalk Express, only > available for Windows). The concepts carry over to other Smalltalks quite > well. (Although it would be great if there were a tutorial this good > available for Squeak.) The tutorial is on the web at: > > http://objectshare.com/se/stexpdoc/index.htm > > (Smalltalk Express is also available for free from objectshare.com.) > > - Doug Way > dway(a)mat.net > dway(a)transom.com > http://www.transom.com Seconded. Also _On to Smalltalk_ <cited in an earlier post> uses ST Express as its Smalltalk implementation of choice. -Chris (Currently learning on Smalltalk Express, hoping to transfer the gained clue back to Squeak :) ____________________________________________________________________ |Chris Patti|ICQ#16333120|feoh(a)cosmic.com|Home #:(617)625-3194|JAPH| |"I have opposable thumbs, and I can buy a rifle. I don't need to | | run from anything." -Todd Finney |

1 0

Re: lego mindstorms and Squeak
by Jeffrey Odell 06 Jan '99

06 Jan '99

Plenty of interesting links on: http://www.crynwr.com/lego-robotics/ jlo "Stephan B. Wessels" wrote: > I know there was some discussion about this before but I don't know if > anything ever came of it. > > Has anyone written a Lego Mindstorms support package for Squeak? I know > there's one for Dolphin and I suspect that interface to the external I/O > is probably an issue. > > Interested in comments... > > - Steve

3 3

Re: Workspace bug?
by Stephan B. Wessels 06 Jan '99

06 Jan '99

Actually, the behavior looks right to me. The first change I would make is to use a lower case character for the temporary variable (f) instead of F. But that's not why you are seeing a "failure". The instance variable <n> should not be visible within the scope of the workspace. After all, that's why it's encapsulated in the first place. I recommend you either consider writing an instance method in FFT that does what you need, or write an instance accessor method that returns the instance variable if you really need to be able to "expose" if to the outside world like it's being used in the workspace example given. Does that help? - Steve Richard L. Peskin wrote: > The following code (from FFT test) runs fine in the browser: > (FFT new nu: 8) realData: ((1 to: n) collect: [:i | (Float pi * (i-1) / > (n/8)) cos]). > > If I try to run this in a Workspace, say as: > | F | > F _ (FFT new) nu: 8. > F realData: ((1 to: n) collect: [:i | (Float pi * (i-1) / (n/8)) cos]). > > the code fails. It appears that the instance variable, n, is not available > to the collect. What is happening here? > --dick peskin > > ================================= > R. L. Peskin, Rutgers Univ. ; <peskin(a)caip.rutgers.edu>; > <http://www.caip.rutgers.edu/~peskin> > VT Phone (802) 824-4558 NJ Phone (732) 445-4208 > "The corporate culture is concerned less with Occam's razor than his > aftershave lotion."

1 0

Re: GTalK 0.01
by Asymptotically Approaching Harmony 06 Jan '99

06 Jan '99

bacon(a)aerodyne.com writes: > On 6 Jan, Joerg Brunsmann wrote: > > Hi, > > > > if you're interested in native widget support on Linux: > > > > http://www.informatik.fernuni-hagen.de/import/pi3/joerg/squeak/gtalk.html > > > > Jrg > > > > Hey! That was my idea. :-) Good job. > > It would be great to see linux applications export their object > interfaces to squeak so that it could be used as an extension language. > I would like to see a push to use this as the extension language for > GNOME. *Grumble* i've been barking up that tree for *YEARS*. Try telling that to a hardened UNIX geek, you'll get "Isn't that what shell scripts are for?" Umm. No :) I really like the user-level abstractions that AppleScript and the associated AOM (I think that's the right acronym for the app independent object model that AppleScript leverages) provides and have been wishing for something like it in UNIX for *YEARS*. When I write an app I want it to be relatively trivial to export 'methods' that could be called by any arbitrary scripting/extension language, or even byy other applications <which could themselves be used as controllers etc> I would *THINK* that shared libraries and perhaps some other SysVish IPC mechanism might be the way to go for this sort of thing. Unfortunately, this is all rather off topic for the Squeak list :) -Chris ____________________________________________________________________ |Chris Patti|ICQ#16333120|feoh(a)cosmic.com|Home #:(617)625-3194|JAPH| |"I have opposable thumbs, and I can buy a rifle. I don't need to | | run from anything." -Todd Finney |

1 0

← Newer
1
...
21
22
23
24
25
26
27
...
30
Older →

Jump to page: