Squeak-dev April 1998

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107 participants
279 discussions

Fix: SystemDictionary>>fileNameEnds
by Boris G. Chr. Shingarov 07 Apr '98

07 Apr '98

Hi Squeakers, The array of possible image/changes file suffixes in SystemDictionary>>fileNameEnds, #(('.image' '.changes' ) ('.image.IMA' '.changes.CHA' ) ('.IMA' '.CHA' ) ) should be #(('.image' '.changes' ) ('.image.IMA' '.changes.CHA' ) ('.IMA' '.CHA' ) ('.ima' '.cha' ) ) because some exotic versions of DOS return the filename in different case. E.g. PC DOS 7.0 Russian behaves this way - "My pojd:em drugim put:em" :-(. Boris

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StorySqueak
by Paul Fernhout 06 Apr '98

06 Apr '98

Squeakers - We just finished a system called StoryHarp for creating interactive stories operated by voice with text-to-speeech, sound, and music output. We prototyped parts of this system in Squeak, but delivered it in Delphi for Win95/NT for various reasons. I though I'd list these reasons, as they are more or less future directions I'd like to see Squeak go, and I'd appreciate any help you can offer in getting Squeak moving in those directions. * Squeak does not yet have built in text-to-speech. A Squeak based TTS engine would be great. There are implemetations I know of available for non-commercial use written in C++. Anyone know of a Smalltalk based text-to-speech system? Could we get Apple to release Macintalk source for use in Squeak? * Squeak does not have speech recognition built in (although it does have sound input). Again, anyone know of Smalltalk base SR software? We'd be content with something fairly simple. We don't need dictation capabilities. Ideally it would use the TTS system to generate waveforms for phrases and choose a nearest match from what the person said (which I believe is how the earliest working SR systems worked anyway -- as I heard it way back from my college advisor, on the first SR-TTS project the TTS group got done first and then scooped the SR group). I know we could link Squeak to SR and TTS engines via calls to native code, as we did with the Delphi app which uses Microsoft Agent and a SR and TTS engine. But we'd really like an all-Squeak solution. The advantage to using Squeak for this is the cross platform portability. Since we now have a big chunk of the market covered with a Win95/NT solution, we'd like a Squeak implementation to cover almost *all* the other platforms for one investment. Also, it creates installation issues if a product requires other products to function. As an alternative to having Squeak do SR and TTS, maybe there could be a standard API interface to TTS and SR engines from Squeak that was supported by all platforms? * Our prototype GUI in Squeak looks really lame because we used standard ST-80 components. Morphic was just too slow and also somewhat incomplete (although MVC is too awkward -- this from someone who started using MVC over eight years ago). Squeak really needs a crisp set of widgets analogous to TK. Ideally, they would be prototype based, like Newton widgets. * We wanted to embed Squeak in the product, but the current Squeak development interface is too confusing for novices. StoryHarp supports macros we want to link to specific bits of Smalltalk code. We need a simpler front end and debugger for programming in Squeak, which hides both the power and complexity of Squeak until the end user needs it. (Maybe sort of like LearningWorks). We also want to have a minimum footprint Squeak with only the components we absolutely need, with the rest loadable on demand. Please don't take these as gripes. StoryHarp improved greatly from its time as a Squeak app (you'll see the browser influence immediately). It was touch and go a few months back as we almost went straight ahead with a Squeak version instead of a Delphi version. We just got cold feet and decided to take a safe route first. Now that something is working, we can think about being more ambitious for a version two. -Paul Fernhout Kurtz-Fernhout Software ========================================================= Developers of custom software and educational simulations Creators of the StoryHarp(TM) Audioventure Authoring System http://www.kurtz-fernhout.com

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RE: VM for HP-UX 9.05
by Juan Cires Martinez 06 Apr '98

06 Apr '98

I have compiled a non-jitter 1.31 vm for HPUX 9.05. Where can I put it?

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Re: Indented volume list
by Reinier van Loon 06 Apr '98

06 Apr '98

> i got caught by the #oldFileNamed: bug. there was one additional step, > let's call it 3a. open an inspector on SourceFiles and make sure that the > rwmode for each of the StandardFileStreams (.changes and .image) is set > to true. then, evaluate step 4 and proceed. if i didn't make that change > to the respective rwmodes, i continued to get the file error. Correct. I forgot to mention it. I personally think that the system should be robust in this, i.e. if it can't save changes then it should continue without complaining. It shouldn't be solved in StandardFileStream but in SystemDictionary. Maybe the source files should explicitly be opened for writing (but what if they were read-only because you put them on a CD-ROM? or whatever)). Anyway, my first impression with a message like oldFileNamed: was NOT too open it for writing. What do you think? Regards, Reinier.

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Rename Windoze-1.3.4
by Reinier van Loon 06 Apr '98

06 Apr '98

Sam, in addition to Stephen Pope's accepted proposal to change the class name prefix to MSW I would like you to consider renaming Windoze-1.3.4.cs into MSW95.cs. Thanks, Reinier. --- Want to express your thoughts? Use Smalltalk. --- Reinier van Loon (rvloon(a)inter.nl.net or reinier(a)2share.com) Squeak Download Area at http://web.inter.nl.net/users/R.L.J.M.W.van.Loon/Squeak/download.html

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Re: Image does not seem to know its changes file
by Tim Olson 06 Apr '98

06 Apr '98

Andreas Raab wrote: >Are the comments still there? Squeak does not add a comment saying >'**** this is decompiled code ****' as VW does so it can still be >decompiled code. Here's a small fileIn that adds such a comment to decompiled methods, which may help you track down what's going on: ---- 'From Squeak 1.31 of Feb 4, 1998 on 3 March 1998 at 12:45:32 pm'! !DecompilerConstructor methodsFor: 'constructor' stamp: 'tao 3/3/98 12:45'! codeMethod: selector block: block tempVars: vars primitive: primitive class: class | node precedence regenComment | node _ self codeSelector: selector code: nil. precedence _ selector isInfix ifTrue: [2] ifFalse: [selector isKeyword ifTrue: [3] ifFalse: [1]]. tempVars _ vars. node _ MethodNode new selector: node arguments: (tempVars copyFrom: 1 to: nArgs) precedence: precedence temporaries: (tempVars copyFrom: nArgs + 1 to: tempVars size) block: block encoder: (Encoder new initScopeAndLiteralTables nTemps: tempVars size literals: literalValues class: class) primitive: primitive. regenComment _ OrderedCollection with: 'source automatically regenerated by the Decompiler' with: 'temporary variable names may have been substituted with t1, t2...'. node comment: (node comment isNil ifTrue: [regenComment] ifFalse: [node comment addAllFirst: regenComment; yourself]). ^ node! ! -- tim

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Re: Image does not seem to know its changes file
by ocit.inc 06 Apr '98

06 Apr '98

The changes file is not write protected. However, it is an "archive" file according to Windows. Frankly, I'm not sure of the intent for said attribute. I changed it to be un-archive but it did not alleviate my problem. I did some digging and found that under the SystemDictionary class that the "SourceFiles" class variable did contain entries for both the sources file and the changes file and that both paths were correct. To further specify the problem: Not all methods look decompiled. At least in VW when a method is decompiled one clearly sees an explicit return of self for those methods that did not have an explicit return in the source code. What is actually happening is that methods with temp arguments are getting translated to t1, t2 etc Methods that do not require any temp arguments look fine. Thus it looks decompiled but maybe the problem is not as simple. BTW - I am starting the image by dragging the image over the application which should be fine. Any ideas are welcomed. In the meanwhile I will start to dig further. Thanks Charles OCIT -----Original Message----- From: Andreas Raab <raab(a)isgnw.cs.Uni-Magdeburg.DE> To: squeak(a)cs.uiuc.edu <squeak(a)cs.uiuc.edu> Date: Sunday, April 05, 1998 5:49 PM Subject: Re: Image does not seem to know its changes file > The browser is providing me with decompiled code. It only does it for > behavior that I add therefore I am assuming that the changes file is not > found. If you do not get a warning saying 'Squeak could not find the changes file XYZ.changes' than it's most likely that your changes file is write protected. Try checking this. > I have tried looking for a preferences option on the pop up menus but > have not found anything that would let me specify the path to my changes > file. The changes *must* be in the image directory to be detected on system startup. Hope this helps, 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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Download area update
by Reinier van Loon 06 Apr '98

06 Apr '98

Folks hi. Squeak downloadArea addAll: #( 'Enhancements to Windoze-1.3.4.' 'A menu option "move to other" in the changes sorter' '3D menus all over the place' 'An indented volume list in the file browser.' ). Folks goGetThemAt: 'http://web.inter.nl.net/users/R.L.J.M.W.van.Loon/Squeak/download.html'. Folks bye: Reinier. --- Want to express your thoughts? Use Smalltalk. --- Reinier van Loon (rvloon(a)inter.nl.net or reinier(a)2share.com) Squeak Download Area at http://web.inter.nl.net/users/R.L.J.M.W.van.Loon/Squeak/download.html

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Re: Indented volume list
by Reinier van Loon 06 Apr '98

06 Apr '98

Folks, shame on me. Don't use the changes in the previous message. It will make sure you can't save anything anymore after a save (because the changes file gets opened using oldFileNamed:). The new version is included below. If you did file in the change set and you did a save here is how you can recover within the image: 1. change false back into true in the method StandardFileStream class>>oldFileNamed: 2. after the accept you will get a debugger message (Error attempt to write to a read-only file) (but the byte codes are there!) 3. close the error screen 4. evaluate the following in a workspace: SourceFiles do: [ :each | each close; open ]. 5. this will lead to an error 6. close the error screen 7. everything should be fine now. Sorry for the inconvenience. Reinier. 'From Squeak 1.31 of Feb 4, 1998 on 5 April 1998 at 4:07:04 pm'! "FileList.cs is a change set to implement a indented volume list. TITLE FileList.cs AUTHOR Reinier van Loon (reinier(a)2share.com) VERSION 1.0 IMAGE VERSION 1.31 PREREQUISITES none DATE April 5, 1998 This change set changes Squeak in the following way: 1.The volume list shows itself indented. 2. Existing files are by opened for reading instead of writing (this fixes the message 'For some reason this file cannot be read' when it is a read-only file). "! !FileModel methodsFor: 'accessing' stamp: 'RvL 4/5/98 16:06'! readContentsBrief: brevityFlag "retrieve the contents from the external file unless it is too long. Don't create a file here. Check if exists." | f size newContents first1000 last1000 | f _ FileStream "oldFileOrNoneNamed: RvL" readOnlyFileNamed: self fullName. f == nil ifTrue: [^ 'For some reason, this file cannot be read']. (brevityFlag and: [(size _ f size) > 30000]) ifFalse: [^ f contentsOfEntireFile]. "Don't display long files at first. Composing the paragraph may take a long time." first1000 _ f next: 1000. f position: size - 1000. last1000 _ f next: 1000. f close. ^ 'File ''' , fileName , ''' is ', size printString, ' bytes long. You may use the ''get'' command to read the entire file. Here are the first 1000 characters: -------------------------------- ' , first1000 , ' .... and here are the last 1000 characters: -------------------------------------- ' , last1000! ! !FileList methodsFor: 'initialization' stamp: 'RvL 4/5/98 11:52'! directory: dir "Set the path of the volume to be displayed." | depth | sortMode == nil ifTrue: [sortMode _ #date]. "2/7/97 sw personal preference" self okToChange ifFalse: [^ self]. directory _ dir. "RvL start" volList := OrderedCollection with: '[]'. depth := 0. directory pathParts do: [ :each | depth := depth + 1. volList add: ( String new: depth withAll: $ ), each ]. "volList _ (Array with: '[]'), directory pathParts." "RvL end" self changed: #relabel. self changed: #list. self newListAndPattern: (pattern == nil ifTrue: ['*'] ifFalse: [pattern]). ! ! !FileList methodsFor: 'list access' stamp: 'RvL 4/5/98 11:52'! toggleListIndex: index "Select the volume name in the receiver's list whose index is the argument." | delim path | volListIndex _ index. delim _ directory pathNameDelimiter. path _ String streamContents: [:strm | 2 to: index do: [:i | strm nextPutAll: ((volList at: i) withBlanksTrimmed). "RvL added withBlanksTrimmed" i < index ifTrue: [strm nextPut: delim]]]. self directory: (FileDirectory on: path). ! !

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Squeak birds of a feather session at Smalltalk Solutions
by ocit.inc 05 Apr '98

05 Apr '98

I was surprised to find out that nobody has set up a discussion session on Squeak for the upcoming Smalltalk Solutions conference. Personally, I would love to see some of the principals actors of this mailing list organize something modest and informal. Don't we all agree? thanks Charles OCIT

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