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Squeak 1.3 for Windows
by Andreas Raab 18 Jan '98

18 Jan '98

Fellow Squeakers, Squeak 1.3 is available for Win32 at http://isgwww.cs.uni-magdeburg.de/~raab/squeak/ ftp://ftp.cs.uni-magdeburg.de/pub/Smalltalk/free/squeak/win32/ in the image/1.30 directory and should show up at the UIUC archive soon. Besides the new features of Squeak 1.3 and some bug fixes (such as time zones and a net work fix fir PWS) there are couple of changes to the VM (quoting the ReleaseNotes): Notes for the 1.3 version of Squeak ----------------------------------- The directory contains two executables one simply called Squeak.exe the other one called SqueakJ.exe. The latter contains the dynamic translator (called Jitter) developed by Ian Piumarta. Note that this VM will _not_ run with images prior to 1.3! Also, there are now some preferences which can be set in the VM. You can access these from the system menu or by pressing the F2 key. The preferences currently include: * "Defer display update" Some people didn't like it therefore you can turn it now on and off (and compare the speed difference ;-) * "Run full screen" An idea of Reinier van der Loon (thanks!) allowing Squeak to occupy the whole screen. You won't notice that you're running Windows -- you feel like running SqueakOS ;-) Remember: Since you can't access the system menu in this mode you need to press F2 to make Squeak run in a window again! * "Show output console" Extremely helpful for VM developers. Opens a small window at the bottom showing the standard output messages. Thus, if you have any "printf"s in your C code you can see it right there. * "Display version information" Displays the version of the sqWin32Window.c file being used. Good for bug reports if the VM crashes. All of the above settings are stored in a file named "Squeak.ini" which can be found in your VMs directory. Note that the settings are immediately updated meaning that if you - start Squeak - Make it run full screen - quit Squeak WITHOUT saving - start Squeak again you will be in full screen mode - that's why you have to ------> REMEMBER THE F2 KEY! <------ If you don't, you can still modify/delete the Squeak.ini file. Andreas -- Linear algebra is your friend - Trigonometry is your enemy. +===== Andreas Raab ============= (raab(a)isg.cs.uni-magdeburg.de) =====+ I Department of Simulation and Graphics Phone: +49 391 671 8065 I I University of Magdeburg, Germany Fax: +49 391 671 1164 I +=============< http://isgwww.cs.uni-magdeburg.de/~raab >=============+

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Squeak 1.3 available for MacOS and Unix
by Ian Piumarta 17 Jan '98

17 Jan '98

Squeakers, I have placed copies of the Squeak 1.3 release in the following locations: ftp://alix.inria.fr/pub/squeak/mac/Squeak1.3.sea.bin [MacOS] ftp://alix.inria.fr/pub/squeak/unix/Squeak-1.3 [Unix] The MacOS version comes direct from "Squeak Central" this morning, and I am releasing it with Dan's blessing. The Unix version was compiled while I was logged in via a modem, so I have not had chance to test the binaries. Please let me know of any problems ASAP so that I can take the necessary action (read: take the relevant bus to INRIA ;). I have appended selected highlights from Dan's description of "what's new in 1.3". The full text of Dan's message can be found in the image, along with some new examples in the "welcome" window.. Andreas has a Win32 version ready, which he will be making available shortly on his FTP site. I will post release notes for the Unix version in a separate message. All versions of 1.3 should be appearing at UIUC (and its mirrors) shortly. Happy Squeaking! Regards, Ian Extracts from 1.3 release notes... New Virtual Machine With the release of Squeak 1.3 we are including two complete copies of the Squeak VM. The first, referred to generally as "Squeak VM 1.3" is simply an updated version of the standard bytecode interpreter that we have been using for the last year or so. The second, referred to as "Squeak Jitter 1.3", translates Squeak bytecodes on demand to a more efficient representation for faster execution. Support for Text Style and Links in Source Code Remember the discussion after OOPSLA about better documentation and navigation? Thanks to the work of Ted Kaehler, this version of Squeak allows creation of hyperlinks in text, and preserves them (and most text styles) in source code and class comments! New Sound and Music Facilities John Maloney has overhauled Squeak's sound synthesis code, improving the treatment of volume envelopes and left-right stereo pan, and greatly improving the variety of FM-generated timbres. As part of the same overhaul, Squeak can also now read MIDI files. A Complete WikiWiki Server Do you remember the e-mail discussion about a better medium for sharing progress on Squeak? Ward Cunningham offered up access to his WikiWiki server and things began to happen. Mark Guzdial picked up Georg Gollman's web server, made it more flexibile, and then he and his students built a WikiWiki server in about 15 pages of Squeak. We are indebted to Ward, Georg, and Mark for this delightful artifact. Numerous little bug fixes such as... Stack error on failure of primitveSomeInstance Bag asSet MethodDictionary do:

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PCX reading code available.
by R.L.J.M.W. van Loon 17 Jan '98

17 Jan '98

Fellow Squeakers, There's code available for reading (and thus displaying) a PCX graphics file. See: http://web.inter.nl.net/users/R.L.J.M.W.van.Loon/ Have fun! Reinier. ! Smalltalk = PowerTalk ! rvloon(a)inter.nl.net

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Hello fellow Squeakers!
by John-Reed Maffeo 17 Jan '98

17 Jan '98

Hello fellow Squeakers! I say that with pride now because last night I finally got a rough version of the TowersOfHanoi program to work!!! My work was based on a copy of the program that I downloaded from the Smalltalk archive at ftp.wustl.edu/ hanoi 16529 usenet/st80_pre4/hanoi.st Towers of Hanoi game -Dr Kevin Waite <kww(a)cs.glasgow.ac.uk> 2.5 Syntax changes were required in several methods and several methods needed to be moved to other classes. My effort was greatly aided by another program that I got to run prior to this which was also downloaded from the SA by ikp(a)cs.man.ac.uk which i can't find the reference to right now. MVC-Wires only needed a few syntax tweeks to get running. Once wires was running I was able to see what kind of changes I needed to make to get hanoi running. One thing that I have learned so far is the necessity to really know the classes and methods or else one is going to reinvent a lot of RoundThingsUsedForTransportation. <insert appropriate Squeat salutation here> John-Reed Maffeo

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Windows API calls for Squeak 1.23
by Alejandro F. Reimondo 14 Jan '98

14 Jan '98

***New Update*** I've updated the package with external structures support. External structures are structures (like C struct) but in external memory (outside the Squeak memory). It can be used for buffers outside the Garbage Collector arena. Some [little]changes and code reorganization has been done to insolate kernel and vsw310 parts. You can download the package (191kb) from SUGAR (Smalltalk User Group of ARgentina) http://www.sugarweb.com/Miniatures/Files/SqApis.Zip Ale. ***Nueva actualizacion*** He actualizado el paquete agregandole soporte para estructuras externas. Estas son estructuras en area de memoria externa (fuera del area de memoria de Squeak). Estas estructuras pueden usarse para la creacion de buffers en areas fijas de memoria (fuera del Garbage Collector). He hecho ademas algunos [pequenios]cambios y una reorganizacion para hacerlo un poco mas modular. Para bajar el paquete visiten SUGAR en http://www.sugarWeb.com El paquete comprimido esta en http://www.sugarweb.com/Miniatures/Files/SqApis.Zip Ale.

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Does Squeak stream objects?
by jarvisb＠timken.com 14 Jan '98

14 Jan '98

Check the Object Storage category. It may not be everything you want but perhaps it's a start. *************************** Attachment *********************************** Date: 14 January 1998, 00:54:34 EST >From Will Hartung vfr750 at INTERNET vfr750(a)netcom.com squeak at INTERNET squeak(a)cs.uiuc.edu To: squeak at INTERNET squeak(a)cs.uiuc.edu cc: recipien at INTERNET recipient.list.not.shown:@ Reply-To squeak at INTERNET squeak(a)cs.uiuc.edu Subject: Does Squeak stream objects? Resent-Date: 14 Jan 1998 05:54:33 -0000 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Resent-Message-Id: <"i4j3pD.A.iND.TMFv0"@jerry> X-Loop: squeak(a)cs.uiuc.edu Precedence: list On the NeXT, they had a routine called WriteObject that would use an objects write: method to write itself out to a binary stream. It seemed fairly crafty, as you typed each element of the class you were writing (int, char *, object id). If you happened to have a List object, and did a WriteObject on it, it would write the List, as well as its contents out to the stream. When you performed a ReadObject, it would recreate everything that was written out. Does Squeak have a similiar process built in? Does it handle cycles/graphs? Thanx, Will Hartung (vfr750(a)netcom.com)

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Re: Does Squeak stream objects?
by Bolot Kerimbaev 14 Jan '98

14 Jan '98

I suppose you can use ReferenceStream in the following manner: (this code fragment is from Mark Guzdial's PluggableWebServer) saveTo: filename |f| f := ReferenceStream fileNamed: filename. f nextPut: self map. " can put your own object instead of (self map) " f close. restoreFrom: filename f := ReferenceStream fileNamed: filename. self map: f next. " (f next) reads the next object " f close. ReferenceStream handles objects that contain objects, etc., and even handles loops. -- Bolot Kerimbaev http://bolotiq.freenet.kg/

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Re: Serial Port access from Squeak
by Todd Coram 14 Jan '98

14 Jan '98

Andreas Raab wrote: > > Does the DC20 come with any kind of device driver? My feeling is that a > > cleaner implementation would involve some kind of driver written in a > > language like C or C++ which does the communication with the serial port > > (including polling and interrupt handling) and provides an API for Squeak to > > talk to at a higher level. > > Depends. Most of the serial devices have fairly simple interfaces and a > well written serial device interface can cover much of it. Also, writing > the driver in C requires hacking the VM and some people don't feel > experienced enough for this or (like me) just prefer a Smalltalk > implementation. This is why I was hoping to find a simple serial device method available from Squeak (something along the lines of unix's ioctl() but nicer). Besides, I want to keep the code as Squeakish as possible (more platform independent smalltalk than C)... I haven't looked at Squeak's Socket classes yet... Is there enough support in Squeak's Socket classes to "simulate" the Serial primitives? Originally I was going to develop some Serial classes in Squeak and use Sockets (connecting to a very low level Serial Port server in C) to get the camera up and running. Then, one day (soon), some kind hacker (or myself) would add true native primitive support for serial devices (ala ioctl() but nicer) into the VM. (This is still MUCH simpler than hacking interrupt driven I/O capabilities into the VM). The Serial classes developed over top of Sockets should survive the migration to the new primitives. Plus, you get "remote Serial device" support to boot ;-) -- Todd Coram (Maroc Ddot) tcoram(a)BLaCKSMITH.com | tcoram(a)pobox.com Sardonic slaughterer of sacred cows.

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Bug in Comment Parsing
by William O. Dargel 13 Jan '98

13 Jan '98

I found that empty comments ("") are not parsed correctly. The second $" does not terminate the comment, but rather gets included as the first character of a comment that terminates wherever the next $" appears in the source. I happened to uncover this because I have used the idiom """code to ignore""" (three $" characters in a row) as a quick way to comment out some code while having it be more visible that I had done so. Only with this bug, the code wasn't being commented out. The following change fixes the bug. ------------------------------------------- 'From Squeak 1.23 of October 4, 1997 on 13 January 1998 at 4:00:06 pm'! !Scanner methodsFor: 'multi-character scans' stamp: 'wod 1/10/98 00:43'! xDoubleQuote "Collect a comment." "wod 1/10/98: Allow 'empty' comments by testing the first character for $"" rather than blindly adding it to the comment being collected." | aStream stopChar | stopChar _ 30 asCharacter. aStream _ WriteStream on: (String new: 200). self step. [hereChar == $"] whileFalse: [(hereChar == stopChar and: [source atEnd]) ifTrue: [^self offEnd: 'Unmatched comment quote']. aStream nextPut: self step.]. self step. currentComment == nil ifTrue: [currentComment _ OrderedCollection with: aStream contents] ifFalse: [currentComment add: aStream contents]. self scanToken! ! ------------------------------------------- Bill Dargel wdargel(a)shoshana.com Shoshana Technologies 100 West Joy Road, Ann Arbor, MI 48105 USA

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Bug in Windows Cut/Copy/Paste
by William O. Dargel 13 Jan '98

13 Jan '98

The Clipboard doesn't seem to be fully supported under Windows. I can copy from other applications and paste into Squeak without any problem. But, in general, text copied from Squeak can't be pasted into other Windows' applications. Has anyone else noticed this problem? I've seen it in both Windows NT 3.51 and 4.0. I did some investigating, using the Windows "ClipBook Viewer" application to see what Windows thought was in the clipboard. For example using NotePad and doing a "copy", it places the text in the Clipboard in 3 formats: "Unicode Text", "Text" and "OEM Text". Of which Unicode Text appears to be the "default". When you do a "copy" within Squeak, it only changes the "Text" format, not the other 2. And apparently when then pasting it into NotePad, it uses the "Unicode Text" and doesn't get what is in "Text". I found that if you "delete" the clipboard contents using the ClipBook Viewer application first, and then do a "copy" within Squeak, that the text will appear in all three formats (the one time). At which point it will paste OK into NotePad (for example). My guess is that a call to EmptyClipboard() before calling SetClipboardData(CF_TEXT, h) in the primitive might be a way to fix this problem. Anybody in a position to test this out? I'd hate to have to unearth my C tools if I didn't have to. :-) ------------------------------------------- Bill Dargel wdargel(a)shoshana.com Shoshana Technologies 100 West Joy Road, Ann Arbor, MI 48105 USA

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