November 2003 - Oberon - mailman3.inf.ethz.ch

Oberon Database
by Dan Parnete 19 Sep '05

19 Sep '05

Hello, I have read this list archives, the documentation inside the distributions, some extra found on the web and I understood. Database is a Tabu word in this community, and is better to not talk about. There is no trace in any distribution (excluding the commercial BlackBox) and the new Bluebottle project doesn't intend to implement one. Ok. It's a choice of live. But don't tell me none of you never needed to put some data altogether. I can't believe nobody extended at list the Library code to more flexible collections management. I saw some database projects started long time ago. Where are this implementations? In other words: if I need a database, have I write it myself? Dan

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Re: [Oberon] Support for Realtek RTL-8139 with Native Oberon
by frey＠inf.ethz.ch 05 Jan '05

05 Jan '05

> I'm running Native Oberon on a Pentium-II class machine. > How can a network card such as, Realtek RTL-8139 be > configured in Native Oberon ? PCITools.Scan was able to > detect this card as a PCI device. The driver is currently only available for the new Bluebottle OS. http://bluebottle.ethz.ch It should not be too difficult to make a Native Oberon driver out of the Bluebottle OS driver. But... I have no time to do this myself. --Thomas Frey

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A pseudo-problem?
by Vasile Rotaru 04 Feb '04

04 Feb '04

Hi, all I don't know whether the following code is correct or not, but both Compiler.Compile and PC.Compile choke on it. (The first with a trap, the second with a criptical report "PC.Compile not done (10/10)".) CONST digits = 10; ops = 5; TYPE Button = .. DigitBtn = .. OpBtn = .. (* auxiliary type used for grouping related items *) Buttons = RECORD digits : ARRAY digits (* constant *) OF DigitBtn; ops : ARRAY ops (* constant *) OF OpBtn; END Of course I may change the name of constants (digits => numOfDigits), but still there must be either a error reported or an .Obx/.Obj file at the end. Regards, Vasile

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Re: [Oberon] Files - search | Edit.
by shark＠gulfnet.sd64.bc.ca 30 Dec '03

30 Dec '03

Chris G. said, > Having multiple partitions helps much. Alexander replied, > ... Windows with it's well grouped files in directories. Native Oberon also has installable filesystems. FAT filesystems and Linux filesystems can be mounted in NO and both types are hierarchical. That is what you want isn't it? Regards, Peter E. http://carnot.pathology.ubc.ca/

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Re (3): [Oberon] WebDAV and WinAos: Progress Report
by edgar＠edgarschwarz.de 22 Dec '03

22 Dec '03

Hi Vasile, thanks for your work ! Vasile Rotaru <vrotaru(a)seznam.cz> wrote: > Getting the AosIO to compile on NO was as simple as copying it to a NO > partition and running Compiler.Compile. But this module by itself is > pretty useless. What you will use in real life are some Readers/Writers > on top of a file, a connection, etc.. Something like, AosFS.OpenWriter > (writer, file, pos). I guess what you need to make the port of WebDAV to > NO as painless as possible is yet another module IOFactory.Mod with > procedures like this: > > OpenFileReader(...); > OpenFileWriter(..) > OpenConnectionReader(..) > > etc. What kind of Writers/Readers do you really need? I guess the Writers/Readers I relly need are either in AosFS or my own code inherited from AosIO. > XMLObjects.Mod > XML.Mod > XMLScanner.Mod > XMLParser.Mod > and some tweaking all those modules compiles. The first three without > any modifications. (Any others XML files needed?) Should be enough. > XMLScanner and XMLParser still use Files.Rider-s for the input but I > guess this will do no harm. For the client side on NO this should be ok. > So, may be the easy part is done... After having a look at what some modules are importing I found one thing which obviously still needs some work. Bluobottle has AosIP, AosDNS, AosTCP which is different from the way NO is doing TCP/IP. But here it would be a decision to be made either to orchestrate e.g. WebDAVClient.Mod with $IF's or making some wrappers around NetSystem to get AosIP, AosDNS, AosTCP. Perhaps a look at what Felix has done for WinAosOberon could give some ideas. Regards, Edgar -- edgar(a)edgarschwarz.de "http://www.edgarschwarz.de" "http://www.edgar-schwarz.de/forum/oberon" Running Active Oberon Make it as simple as possible, but not simpler. Albert Einstein

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n-o: ? ET.Marker save user ~ & ET.Marker set saved ~
by easlab＠absamail.co.za 30 Nov '03

30 Nov '03

When I first started using ETH oberon (during the last millenium), I failed to understand/use these commands. Now I have stumbled across them again and I still fail. A quick look at ET.Mod shows that ET.Marker save <arg2>, sets the (global to ET) variables sX, sY. And as expected ET.Marker set saved ~ 'uses' them. Altho' I'm not clear how. One should NOT have to analyse the source, to use the ap ? Q1. Since the 'mark' is relative to the display, why should it's coordinates be lost when the 'mark' becomes invisible by moving it's containing frame ? Q2. Do the ET.Marker save <track> and ET.Marker set saved commands intend to avoid loosing the mark's coordinates due to eg. scrolling it's containing frame ? Q3. Does the facility only work inside an ET.Open type frame ? Q4. Why does this fail ? Try: - 1. ET.Open EMi ~ which contains the following 5 lines of text:- ET.Marker save user ~ ET.Marker set saved ~ ET.Marker set this ~ = ok ET.Marker set 333 400 ~ = ok ET.ExchangeMenu saved 2. position marker, other than were the next frame would auto-position. 3. ET.Open fl2 ~ 4. ET.Marker save user ~ 5. System.Close fl2 6. ET.Marker set saved ~ 7. ET.Open fl2 ~ == It doesn't open at the 'expected to be saved' position. This 'fails' also when 3, 4 are reversed in sequence. Thanks for any help in solving this annoying problem. == Chris Glur.

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n-o: ? ET.Marker save user ~ & ET.Marker set saved ~
by easlab＠absamail.co.za 30 Nov '03

30 Nov '03

When I first started using ETH oberon (during the last millenium), I failed to understand/use these commands. Now I have stumbled across them again and I still fail. A quick look at ET.Mod shows that ET.Marker save <arg2>, sets the (global to ET) variables sX, sY. And as expected ET.Marker set saved ~ 'uses' them. Altho' I'm not clear how. One should NOT have to analyse the source, to use the ap ? Q1. Since the 'mark' is relative to the display, why should it's coordinates be lost when the 'mark' becomes invisible by moving it's containing frame ? Q2. Do the ET.Marker save <track> and ET.Marker set saved commands intend to avoid loosing the mark's coordinates due to eg. scrolling it's containing frame ? Q3. Does the facility only work inside an ET.Open type frame ? Q4. Why does this fail ? Try: - 1. ET.Open EMi ~ which contains the following 5 lines of text:- ET.Marker save user ~ ET.Marker set saved ~ ET.Marker set this ~ = ok ET.Marker set 333 400 ~ = ok ET.ExchangeMenu saved 2. position marker, other than were the next frame would auto-position. 3. ET.Open fl2 ~ 4. ET.Marker save user ~ 5. System.Close fl2 6. ET.Marker set saved ~ 7. ET.Open fl2 ~ == It doesn't open at the 'expected to be saved' position. This 'fails' also when 3, 4 are reversed in sequence. Thanks for any help in solving this annoying problem. == Chris Glur.

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ask for your help!
by cyqb4 28 Nov '03

28 Nov '03

hello, oberon i want to know whether XOberon Language is supported by CORBA (Common Object Request Broker Architecture) ?? thank u very much! davis ======================================================== 网易VIP收费邮箱两周年超值优惠! 满1赠6！！　 http://vip.163.com 中国最大的免费邮箱在等你 25兆空间4兆附件！　　　　　 http://mail.163.com 点击网易泡泡惊喜无限全免费手机短信任你发!　　　　　　http://popo.163.com

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Re: [Oberon] WebDAV on n-o: feed back
by edgar＠edgarschwarz.de 26 Nov '03

26 Nov '03

easlab(a)absamail.co.za wrote: > > But finally again the question: Did you get the stuff in System.Log I showed > > above ? > ++ I Guess so: > System.Directory XmlIn*.Log\d == > XmlIn0.Log 26.11.2003 17:43:51 440 > ++ And a typical System.Log trace is:-- > {HTTP Client : PROPFIND http://webdav.ethz.ch/tutorial1.dxp} > {Connection.Receive: size, min, read, res 4096 1 1 0} > {Connection.Receive: size, min, read, res 4096 1 689 0} > {HTTP Client : HTTP/1.1 207} > ... Looks good. > ==> Desktops.OpenDoc "http://www.edgar-schwarz.de/forum/oberon" > == "Your browser does not support Frames" > ==> Drop dead ! If you write for oberon you should 'do anybrowser'. > ==> execute the individual frame links Let's talk about that another day please. Is it simple give the individual links ? OTHOH even Oberon has WebNavigator which should do frames. Try to get "http://www.edgarschwarz.de/oberon/WebDAV.1.3.2.Zip" > == A frame labeled: http//: ... is 'filled' with the VCS05A.ARC contents. > Compress.Directory <arg> needs a file {can't use @ = start of select}, > But when the frame is suitably renamed and saved, the contents > is/will be corrupted - by a header. > Various attemps to get the downloaded frame contents to a file, > uncorrupted by a header failed, eg: Old problem. Use another command to get a file and save it. I just don't remember it just now. Something with HyperDoc.* ? BUT you could even give WebDAV a try. DCT.SetHost "www.edgarschwarz.de" DCT.Get "/oberon/WebDAV.1.3.2.Zip" Test.Zip I just tried it with Aos. It worked ok. Because DCT.Get sends a normal HTTP GET a normal server also understands it. And you also could give "http://webdav.ethz.ch/nodav/src/" a try. I did put the current sources and also an extended no.WebDAV.Tool there. > I think some new user should write a "new user's view" of > usage from the TOP (not bottom/details-first) eg. > * WebDAV allows .... > * Projects are separated into directories ... > * Entry to a chosen directory is by: ... > * Typical opperations are: > * <operation description1> : <corresponding command1..> > .... > * <operation descriptionnN> : <corresponding commandN..> You can write it and put it at "http://webdav.ethz.ch/temp/". You already have a user and password for that. And now I have to leave for the TV ! Champions League: VfB Stuttgart - Glasgow Rangers :-) Cheers, Edgar -- edgar(a)edgarschwarz.de "http://www.edgarschwarz.de" "http://www.edgar-schwarz.de/forum/oberon" Running Active Oberon Make it as simple as possible, but not simpler. Albert Einstein

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WebDAV on n-o: feed back
by easlab＠absamail.co.za 26 Nov '03

26 Nov '03

> But finally again the question: Did you get the stuff in System.Log I showed > above ? ++ I Guess so: System.Directory XmlIn*.Log\d == XmlIn0.Log 26.11.2003 17:43:51 440 XmlIn1.Log 26.11.2003 17:44:15 446 XmlIn2.Log 26.11.2003 17:47:32 446 XmlIn3.Log 26.11.2003 19:10:22 808 WebDAV:XmlIn0.Log 25.11.2003 20:28:30 440 WebDAV:XmlIn1.Log 25.11.2003 20:29:57 3851 6 files use 7KB ----------------------- ++ And a typical System.Log trace is:-- {HTTP Client : PROPFIND http://webdav.ethz.ch/tutorial1.dxp} {Connection.Receive: size, min, read, res 4096 1 1 0} {Connection.Receive: size, min, read, res 4096 1 689 0} {HTTP Client : HTTP/1.1 207} {HTTP Client : <?xml version="1.0" encoding="UTF-8" standalone='yes'?> <D:multistatus xmlns:D="DAV:"> <D:response> <D:href>http://webdav.ethz.ch/tutorial1.dxp</D:href> <D:propstat> <D:prop> <D:getcontentlength>276</D:getcontentlength> <D:getlastmodified>Mon, 31 Mar 2003 18:00:52 GMT</D:getlastmodified> <D:displayname>tutorial1.dxp</D:displayname> <D:resourcetype/> </D:prop> <D:status>HTTP/1.1 200 OK</D:status> </D:propstat> </D:response> </D:multistatus> } <-- non ascii byte ?! > Then your client connected and you could go on doing real work after > perhaps reading the documentation in the Bluebottle release of WebDAV > also on my homepage. http://www.edgar-schwarz.de/forum/oberon" ==> Desktops.OpenDoc "http://www.edgar-schwarz.de/forum/oberon" == "Your browser does not support Frames" ==> Drop dead ! If you write for oberon you should 'do anybrowser'. ==> execute the individual frame links == URL: "http://www.edgarschwarz.de/oberon/navi.html" Title: Edgars Oberon Navigation Oberon and Internet. * Home * Oberon * Version-control <-- try this ==> URL: "http://www.edgarschwarz.de/oberon/view.html#version-control" Title: ES Oberon .... Version Control with VCS VCS05A.ARC (34K) VCS is a simple version control system which gives you funcionality similar to RCS.It's usable for text and binary files in Native ... ==> try link to VCS05A.ARC == A frame labeled: http//: ... is 'filled' with the VCS05A.ARC contents. Compress.Directory <arg> needs a file {can't use @ = start of select}, But when the frame is suitably renamed and saved, the contents is/will be corrupted - by a header. Various attemps to get the downloaded frame contents to a file, uncorrupted by a header failed, eg: EditTools.OpenAscii Devlp:VCS05A.Arc ~ & paste Rxed Frame mark & EditTools.StoreAscii * == EditTools.StoreAscii Devlp:VCS05A.Arc Compress.Directory Devlp:VCS05A.Arc ~ == Error in archive By comparing the file begin with good *.Arc files, using Hex.Open Devlp:VCS05A.Arc looked OK, but possibly CR and/or LF bytes are corrupted ? Normally when downloading binary files a Temp.* file is automatically created. eg. Temp.FTP , Temp.zip , Temp.gif ... Oberon.Text knows about *.Arc , NOT *.ARC ?! So I must use linux to fetch VCS05A.ARC ? I think some new user should write a "new user's view" of usage from the TOP (not bottom/details-first) eg. * WebDAV allows .... * Projects are separated into directories ... * Entry to a chosen directory is by: ... * Typical opperations are: * <operation description1> : <corresponding command1..> .... * <operation descriptionnN> : <corresponding commandN..> My experience (as I've repeatedly written) is that the constructor, after many hours of intense concentrated involvement is not QUALIFIED to write the 'new users' guide. What happened to the fad of 70's/80's of technicians partnering with a female writer ? == Chris Glur.

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