April 2016 - Oberon - mailman3.inf.ethz.ch

Text processing problem?
by eas lab 26 Apr '16

26 Apr '16

I've often wondered how users of Microsoft and other 'proper' systems solve problems like this: * you fetch an important text file, which has 3 different possible classifications, so you chose <class A> to store it, after adding extra info; * 4 years later, while searching on a suitable word you find that you have 3 copies of *that* file in each of 3 classifications / directories, and each of slightly different size, from extra info added as you have read them. * you want to consolidate the 3 copies to ONE file, without losing the extra info added. Linux & LEO does this:. * Linux find each file and push a button to append its location to <StakFile>; * in LEO: NB. for ETHO beginners: you don't type these commands; you just klik then on the menu: System3.Tool * fetch the tail of <StakFile> * EditTools.OpenUnix ^ for each of the 3 files * position the caret at the begin of 2 of the 3 files * TextDocs.SearchDiff ^^. * note the text differences following where the difference starts; possibly coloring the differences, for later comparison and manual editing to get ONE version. # reposition the caretS where the 2 file syncronise & repeat above -- # similarly compare the 3rd file with 1 or 2. Decide which of the 3 classifications / Directories is to be used. *VISUALLY* locate and compare the *COLORED* different <own info> and edit these sections to a single version, in the FinalDestinationFile How do you [who don't need more than 2 files viewable together] do it ? == Chris Glur.

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System V5 - SYSTEM.Mod creation
by thomas.kral＠email.cz 26 Apr '16

26 Apr '16

Hi, While I am still studying PO.Applications, chapters on compiler, I already noticed that modules often import low level routines from SYSTEM. I can see from the sources how routines are referenced, but actually where are they defined and built into the Oberon system? SYSTEM.BIT SYSTEM.GET SYSTEM.PUT SPI SYSTEM.LDREG SYSTEM.REG SYSTEM.ADR SYSTEM.VAL The above list may not be complete. It also proves I am not a careful reader, but I saw some pseudo SYSTEM module being initialised in ORB.Mod. Many thanks Tomas

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Quick access to Aos-Files anywhere in the File-Tree.
by eas lab 25 Apr '16

25 Apr '16

Previously when roaming the file tree [mainly by mc: the improved clone of the classical DOS nc], different file types could be examined:- *.pdf => xpdf FileName.pdf *.*nixText => mc view / edit Micro$pook.Text => best via LEO ETHO/Aos.Text => via LEO by lauching a LEO which is based in the directory where the ETHO/Aos.Text is seen to be. This is not optimal since after I've seen the File's name, and mc has shown that the file is Aos, by the appearance, eg. looking like:-- Â..TextDocs.NewDoc.....Â..,.Â..F...CColor......Flat...Locked...Controls...O…... ... .Â.BIER`...b.........3.Â..l....Oberon10.Scn.Fnt...Â............OB2ULiNE.Scn.Fnt. ... ......)...........................G...............==> /usr/local/bin/LEO/InitLog I don't want to type in file names, especially not these absurd Micro$pook ones. mc, being cursor-based allows you to scroll or mouse to the particular FileName and <do various actions> on it. Also, I don't want to start LEO and then need to remember/find and enter the FileName. The solution is to use mc [or other method] to store the path/file in a fixed location, so that when the LEO is launched, it immediately has access to that selected file. If you don't know mc, you can use your own method to conveniently load path/file to a fixed file, which your ETHO's Oberon.Text will use, by eg. an entry: Desktops.OpenDoc /var/wSeeO/FileName or Edit.Open /var/wSeeO/FileName /var/wSeeO/FileName is where I've put the path/name of the selected Aos file to be accessed. The file Oberon.Text which is in the directory, from which LEO is launched, initialises the behaviour of *THAT* LEO. GoalDirected summary [working backwards]. 2. an ETHO version is launched, that has it's Oberon.Text initialised to know where the latest <path/file> has been put, and preferably opens the file containing <path/file> to be immediately ready to do: Desktops.OpenDoc ^ or ET.Open ^ on <path/file>. 1. Use your own method to load the /path/file of the Aos file that you want ETHO to open, into <FileName> ==================== In my case File: /var/wSeeO2/Oberon.Text's contents starts with:-- { /var/wSeeO/Oberon.Text The Oberon Configuration Text - see System.Text for more information } System = { DefaultFont = OB2ULINE.Scn.Fnt MouseButtons = 2 KeyboardLayout = "de" InitCommands = { { HostSysinfo.Show } { KeyboardMap.Install } { TextDocs.ReplaceSystemEditor } { System.OpenLog } { ET.Marker set 766 140 } { System.Open System3.Tool } { Desktops.OpenDoc /var/wSeeO/File } <-- points to FileName ... Presently /var/wSeeO/File has the single line, containing: /mnt/h15/usr/local/bin/LEO/ARMETHO12.23 which is the oberon path/file which Desktops.OpenDoc ^ , or Edit.Open ^ can be used on. So, the file that LEO should access is: /mnt/h15/usr/local/bin/LEO/ARMETHO12.23 This long path/filename was placed in: /var/wSeeO/File by mc; use you own prefered method and location. When LEO starts, the line in Oberon.Text : { Desktops.OpenDoc /var/wSeeO/File } causes /mnt/h15/usr/local/bin/LEO/ARMETHO12.23 to be displayed in a TextFrame; which gives direct 1-klik acces to /mnt/h15/usr/local/bin/LEO/ARMETHO12.23 Perhaps a similar scheme could help LNO / ALO to easier than presently work on files outside of its own directory, although unlike LEO, it may still be restricted to being launched from only its home directory? IMO unless it can easily access the whole file-tree it's just a demo-toy. == Chris Glur.

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RGB display in Oberon RISC5
by Magnus Karlsson 23 Apr '16

23 Apr '16

I have made an updated version of VID.v with support for an RGB video buffer. The video buffer is now 4x larger (about 40% of the total 1 MB RAM) and video refresh will use up about 40% of the memory bandwidth. See http://saanlima.com/forum/viewtopic.php?f=14&p=1786#p1783 for Verilog code and bit files for Pepino_LX9 and Pepino_LX25. Magnus

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Re (2): Wikibook _versus_ svn or git.
by peter＠easthope.ca 21 Apr '16

21 Apr '16

From: eas lab <lab.eas(a)gmail.com> Date: Wed, 20 Apr 2016 09:24:30 -0800 > Edgar tried a wiki for his project, in the old days. I'd almost forgotten. A discussion forum wasn't it? In a Wikibook, the pages are the primary interest. Discussion is to support page development; not the primary object. > I want to prepare all of-line, ... Entirely possible. Make a text in any editor. Paste into the wiki text. > As I remember, Edgar's wiki needed on-line experimenting/training > to learn its syntax? Try an edit in the Wikipedia. Couldn't be easier. Regards, ... Lyall E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +1 360 639 0202 http://easthope.ca/Peter.html Bcc: peter at easthope. ca

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Re (2): Trouble with copy paste. Awkward feature comes in.
by peter＠easthope.ca 19 Apr '16

19 Apr '16

From: Srinivas Nayak <sinu.nayak2001(a)gmail.com> Date: Wed, 20 Apr 2016 00:30:56 +0530 > By the way, I suppose, nobody including me, even Professor Wirth, > uses Oberon as his primary OS. Not as primary OS but I use the Oberon subsystem in UnixAos as much as possible. You might say it is a secondary OS. Probably you know from message headers that I use Mail.Panel. My time log is a plain Text. I use HPCalc.Panel in bookkeeping and etc. Web pages are maintained with help of the HTML module. And etc. ... Regards, ... Lyall E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +1 360 639 0202 http://easthope.ca/Peter.html Bcc: peter at easthope. ca

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Horizontal scrolling of Menu items on a Viewer in Native Oberon alpha 2.3.6
by Srinivas Nayak 19 Apr '16

19 Apr '16

Dear All, >In some Oberon installation I had seen horizontal scrolling of Menu items with MR click. >Now I forgot where. Can any one kindly remind me? I found that, in Native Oberon alpha 2.3.6, horizontal scrolling of Menu items is available. Example: System.Log viewer. Just before the name 'System.Log' in menu bar, we see a small square box. MM click on this square, scrolls the menu list to right, revealing invisible menu items present at the end of menu bar. Now, 2-3 MR click on the same square, scrolls the menu list to left, revealing menu items present at the beginning of menu bar. Not sure if this is a feature or bug. With thanks and best regards, Yours sincerely, Srinivas Nayak Home: http://www.mathmeth.com/sn/ Blog: http://srinivas-nayak.blogspot.in/

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Another awkward feature.
by Srinivas Nayak 19 Apr '16

19 Apr '16

I created a tool called srinivas.tool. I open it in user track. Here is what I see, the content of srinivas.tool. (numbers in left are line numbers) 0. 1. System.CopyFiles a.txt=>b.txt ~ 2. 3. System.DeleteFiles ~ 4. 5. System.ShowModules ~ 6. This means, between two command lines, there is a blank line. First line is also a blank line. I did this so, for my easy readability. Also not to click on a unwanted command by mistake. Generally I use double click ML to activate a command. This I felt easier to MM. Because of my bad habits. Unfortunately, in absent mind... I happened to double click ML at line 2. I saw in System.Log, "s deleting failed"! I was horrified... did I deleted something?... did I have a file named 's'?... delete command worked without any parameter? Now, being curious, I double click ML at line 4. Immediately a viewer opened in system track with modules list. I was surprised... wow, showmodules command worked?... good. Now, I double click ML at line 0. I saw in System.Log, "System.CopyFiles" only. My familiar message "a.txt => b.txt copying" was missing. I was confused... copyfiles worked?... my file got copied?... Now, I thought, may be I shouldn't depend on double click ML. Though NO refers us to use double click ML as another alternative to MM for command activation, original Oberon had only MM, the book says. Lets try the same with MM. I couldn't believe my eyes... all the same!...no different! Till today, I am not sure what happened... Still in doubt, about the usefulness of this feature. With thanks and best regards, Yours sincerely, Srinivas Nayak Home: http://www.mathmeth.com/sn/ Blog: http://srinivas-nayak.blogspot.in/

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Re: [Oberon] Text processing problem?
by chris＠cfbsoftware.com 19 Apr '16

19 Apr '16

> -----Original Message----- > From: Oberon [mailto:oberon-bounces@lists.inf.ethz.ch] On Behalf Of > eas lab > Sent: Sunday, 17 April 2016 1:12 PM > To: oberon(a)lists.inf.ethz.ch > Subject: [Oberon] Text processing problem? > > * you want to consolidate the 3 copies to ONE file, without losing > the > extra info added. > No problem on Windows. I use the file comparison / merge tool called 'Beyond Compare' from Scooter Software. It can compare single files or entire folder structures. I use it regularly a) To synchronise my websites with my PC via ftp b) To synchronise my various targeted Oberon compilers with the master sources c) To synchronise my backups of hard drives to off-line drives. etc. etc. There are no commands to remember - it is all 'point and click'. I've never had a need to merge 3 files. I believe Beyond Compare can do it, but I would probably find it easier to merge in two stages anyway. Regards, Chris Burrows CFB Software http://www.cfbsoftware.com

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NO app for Android; was OWIDTH and OHEIGHT for OLR
by peter＠easthope.ca 18 Apr '16

18 Apr '16

From: Peter Matthias <PeterMatthias(a)web.de>, Sun, 17 Apr 2016 14:21:55 +0200 > If somebody knows how to claim framebuffer ... Never worked with Android but a google of "android app framebuffer" gave this page. http://stackoverflow.com/questions/21348715/how-to-draw-using-framebuffer-o… Also google suggests "android framebuffer example", "android framebuffer tutorial" and "android framebuffer access". > ... and mouse/keyboard events, ... Must be more or less similar to fb. I guess I should buy a Bluetooth mouse and keyboard. Notes about the tablet are collecting here. http://easthope.ca/XOtablet.html Regards, ... Lyall E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +1 360 639 0202 http://easthope.ca/Peter.html Bcc: peter at easthope. ca

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