Squeak-dev January 1999

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143 participants
293 discussions

RE: R.I.P. Byte
by Stephen Pair 25 Jan '99

25 Jan '99

> The old BYTE would have had a field day with the open source > movement and Squeak and all sorts of neat things happening now, but > these didn't even register with the "new" BYTE. Sigh. Can anyone recommend good current publications (electronic or print) that cover neat stuff in the spirit of the old BYTE? - Stephen

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Re: Evaluating HTML-Smalltalk Code in Scamper (with attached zip)
by merlyn＠stonehenge.com 25 Jan '99

25 Jan '99

>>>>> "David" == David Farber <dfarber(a)numenor.com> writes: David> i had the same reaction when i first read this, but after David> mulling it over a bit i think he did the right thing. a David> <code></code> block only denotes that the specified information David> is source code of some sort. for the mainstream browers, this David> means that the text in the tag get printed in a mono-spaced David> font. <script> on the other hand is code that the browser is David> supposed to execute, if it can. i believe that the original David> intent of the snippet originally posted was to make scamper David> intelligent enough to make it easy to evaluate smalltalk code David> that was specified in the html as code. this is not the same as David> scripting; this is just letting the user "do it" (in time David> honored Smalltalk fashion) without cutting and pasting to a David> workspace. Yes, after a clearer reading the next day, I concur. I withdraw my observation. :) David> speaking of scripting--is there some way to hook the perl David> parser/compiler such that i could massage errors into html? David> currently if a perl script i've written to dynamically generate David> html has any kind of error, the error text gets gobbled by the David> server and the server returns a different error that just says David> that the script misbehaved. i was thinking that surely there David> was something somewhere in perl that i could hook that would David> let me wrap stdout so i could generate an html page that David> notified me of the error. ideas? Of course. Many of the programs I've written for my monthly WebTechniques Perl column have tackled that exact problem in various ways with different levels of sophistication. The online archive of past columns is at <URL:http://www.stonehenge.com/merlyn/WebTechniques/>. Special thanks to MFI for letting me put the column they own on my website. Just another Perl hacker and Squeak tinkerer, -- Name: Randal L. Schwartz / Stonehenge Consulting Services (503)777-0095 Keywords: Perl training, UNIX[tm] consulting, video production, skiing, flying Email: <merlyn(a)stonehenge.com> Snail: (Call) PGP-Key: (finger merlyn(a)teleport.com) Web: <A HREF="http://www.stonehenge.com/merlyn/">My Home Page!</A> Quote: "I'm telling you, if I could have five lines in my .sig, I would!" -- me

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Re: 2.3 upgrades causing Cursor bug?
by Pennell's 25 Jan '99

25 Jan '99

Squeak 2.2 updating from the server works fine. The Squeak 2.3Beta seems to have been built from different numbered changesets. I pulled all of them down successfully with a 2.2 image - just takes patience. -david -----Original Message----- From: William Barnett-Lewis <wlewis(a)mailbag.com> To: squeak(a)cs.uiuc.edu <squeak(a)cs.uiuc.edu> Date: Tuesday, January 12, 1999 2:30 PM Subject: Re: 2.3 upgrades causing Cursor bug? >Hmm, on my Mac at home, a couple of weeks ago, I'd hit the "update code >from server" menu to see if any updates had been released and noticed >that all the updates since 2.2 came out tried to install making a major >mess. I assumed that I'd munged something in my image and simply >reinstalled the 2.3 beta from the sit file. Now, after hearing your >experiences I think it might be more general than my usual pilot error. > >Just checked 2.3 on NT here at my office and it does the same thing; >starting with update 320/321-ish dated in September. > >William > > >Tim Rowledge wrote: >> >> I uploaded the latest upgrades that Dan announced just to check out some things >> and found:- >> - 248 changesets came up the wire. This seems rather more than the 110 mentioned >> - several changesets caused notiifers complaining of class variables still >> being in use whilst changing a class defn. >> - the Cursor is now demented. Moving into a 'normal' view no longer sets the >> cursor to the normal cursor - it gets left as the last 'wierd' one, like the >> menu cursor or the wait cursor. >> >> Just FYIs. >> >> tim >> >> -- >> USER ERROR: replace user and press any key to continue. >> Tim Rowledge: rowledge(a)interval.com (w) +1 (650) 842-6110 (w) >> tim(a)sumeru.stanford.edu (h) <http://sumeru.stanford.edu/tim> > >-- >Live without fear; your Creator loves you >as a mother. Go in peace to follow the good >road and may God's blessing be with you always. >St. Claire > >

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Re: Mouse events
by ocit.inc 24 Jan '99

24 Jan '99

An event driven interface architecture has been available in VW since 2.5 in the form of a filein. It is now the default. I believe that one of the main reasons why the polling architecutre was employed was because it facilitated "portability". Charles OCIT -----Original Message----- From: Carl Watts <Carl(a)AppliedThought.com> To: Joachim Durchholz <joachim.durchholz(a)munich.netsurf.de> Cc: squeak(a)cs.uiuc.edu <squeak(a)cs.uiuc.edu> Date: Saturday, January 23, 1999 8:23 PM Subject: Re: Mouse events >>> Its a common mistake, but the lack of [mouse] responsiveness is not >>> due to the threading model. Its due to the use of a polling user >>> interface. ... >> >>Thanks for clarifying this. >> >>> The solution lies in implementing an event model for mouse clicks. >>> But this does require a rewrite of the simple (and hence easily >>> extensible) Controller polling loop. >> >>Hm. If it's easy to do: Why hasn't this been done before? > >It has, several times. I personally have done it three different times in two different flavors of ParcPlace Smalltalk and once in Squeak (but it was for a private company who retains the right to the code I wrote). > >Morphic, the new interface architecture in Squeak is written to be event driven. It's just the low levels of the user input system (InputSensor/InputState and the VMs that aren't supportive of it yet). And of course the old interface architecture in Squeak, MVC, is not designed to be event driven. > >Don't worry, it's a known problem. I'm sure it will be addressed in Squeak before long. It is unfortunate that polling MVC never seems to fully die. Just when you think it's gone forever it appears again! > > >Carl Watts >http://AppliedThought.com/carlgwatts.html > > >Carl Watts >http://AppliedThought.com/carl/ > >

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AW: Squeak on ComputerWorld and Squeak press articles in general
by Torsten Bergmann 24 Jan '99

24 Jan '99

It's always a problem to get specified issues of magazins. (especially if the mag is published in another country). It would be nice to share such informations (like press articles mentioning Squeak) as electronic data. (scanning the article, post it as a GIF or post a reference where the GIF can be found, including the article into the Squeak swiki, ...). I don't know if we can do this. What is with copyrights? Any suggestions? Thanks Torsten ---------------------------------------------------------------- A debugger doesnt remove bugs - it only runs them in slow motion ---------------------------------------------------------------- -----Ursprüngliche Nachricht----- Von: Mark Wai [mailto:mwai@ibm.net] Gesendet am: Saturday, January 23, 1999 4:10 PM An: squeak(a)cs.uiuc.edu Betreff: Squeak on ComputerWorld There is a tiny little bit coverage (and even some photos of Engelbart and Kay) about Squeak in Computerworld January 18, 1999. Vol 33. No.3 (under the Technology section) To quote some lines from there: "Thirty years later, nothing has evolved" -- Hal Bennett "The place where you die (referring to Squeak I believe)" -- Alan Kay "The symposium was more of a glorious glance backward than an outline of the future" -- the reporter Enjoy -- Mark Wai Wator InnoVision

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HTTP Proxy - Does Squeak have a way to pass userid/password??
by John-Reed Maffeo 24 Jan '99

24 Jan '99

I tried using the proxy setup in Squeak and could not get through because my userid and password were not being handed off to the proxy server. Any suggestions? Thanks, John-Reed Maffeo

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Re: Mouse events
by Carl Watts 24 Jan '99

24 Jan '99

>> Its a common mistake, but the lack of [mouse] responsiveness is not >> due to the threading model. Its due to the use of a polling user >> interface. ... > >Thanks for clarifying this. > >> The solution lies in implementing an event model for mouse clicks. >> But this does require a rewrite of the simple (and hence easily >> extensible) Controller polling loop. > >Hm. If it's easy to do: Why hasn't this been done before? It has, several times. I personally have done it three different times in two different flavors of ParcPlace Smalltalk and once in Squeak (but it was for a private company who retains the right to the code I wrote). Morphic, the new interface architecture in Squeak is written to be event driven. It's just the low levels of the user input system (InputSensor/InputState and the VMs that aren't supportive of it yet). And of course the old interface architecture in Squeak, MVC, is not designed to be event driven. Don't worry, it's a known problem. I'm sure it will be addressed in Squeak before long. It is unfortunate that polling MVC never seems to fully die. Just when you think it's gone forever it appears again! Carl Watts http://AppliedThought.com/carlgwatts.html Carl Watts http://AppliedThought.com/carl/

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Re: Morphic, dataflow and encapsulation
by Marcel Weiher 23 Jan '99

23 Jan '99

> > I would like to learn more about the ideas behind the dataflow model and > encapsulation that I understand Morphic is aiming at. I read in the Squeak > outline that this model is based on the Fabric wiring metaphor but haven't > found anything about it sofar. Does anyone have any pointers to online > docs? Funky. I was just browsing through some OOPSLA papers on Fabrik and ThingLab and though that this is what Morphic must be like. Where exactly did you find the "Squeak outline" that described the relationship between Morphic and Fabrik? "Fabrik: A Visual Programming Environment", Dan Ingalls, Scott Wallac, Yu-Ying Chow, Frank Ludolph, Ken Doyle. In OOPSLA 88 Proceedings. > This is what we should be doing: wiring components together to create > larger systems instead of writing textual glue. Yes, wiring up components is very promising. However, wether the wiring is done textually or visually should not matter (each has its uses). Marcel

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Morphic, dataflow and encapsulation
by Hrefna "GumundsdÛttir" 23 Jan '99

23 Jan '99

Hi I would like to learn more about the ideas behind the dataflow model and encapsulation that I understand Morphic is aiming at. I read in the Squeak outline that this model is based on the Fabric wiring metaphor but haven't found anything about it sofar. Does anyone have any pointers to online docs? This is what we should be doing: wiring components together to create larger systems instead of writing textual glue. Thanks, Jens P

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Re: Evaluating HTML-Smalltalk Code in Scamper (with attached zip)
by Pennell's 23 Jan '99

23 Jan '99

[big snip] >Also, I'd probably vote for the <script> version. You can always put both versions on a page if you want. But if that doesn't fly, there should at least be an attribute check. > > <code squeaky="yes"> How do you distinquish between compiling the code into your image and executing the script? I'm not sure I would want each visit to the page to add to my change log. -david

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