[Oberon] Oberon Digest, Vol 114, Issue 7

[Søren Renner]

After a decade of coding in AOS, I still miss NO.


On Sat, Nov 30, 2013 at 5:00 AM, <oberon-request at lists.inf.ethz.ch> wrote:

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> Today's Topics:
>
>    1. Re: Oberon-2 cross compiler source for INMOS T800 Transputer
>       available now (OP2/V4) (eas lab)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 29 Nov 2013 20:04:50 +0200
> From: eas lab <lab.eas at gmail.com>
> Subject: Re: [Oberon] Oberon-2 cross compiler source for INMOS T800
>         Transputer available now (OP2/V4)
> To: ETH Oberon and related systems <oberon at lists.inf.ethz.ch>
> Message-ID:
>         <
> CAN3-DLGb9LyufHqMSRnkGqvXEA-4TEyTeFD4jQfm6s6T+1fDzg at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> I don't appreciate 'these-days-twitter-style' minimal content burps.
> So here is some contents:-
> ETHO is much less about the language, than the unsurpassed total OS, where
> you
> see everytihing on the single screen, without the need to bob-yo-head
> upNdown
> between keybrd & screen.
>
> LinuxEthOberon builds on this to newly discovered extremes.
> My original 40GB IDE for ETHO from the 90s started failing; and I have some
> valuable legal files on some of the 48 partitions.
>
> LNO can read these, on the same PC that's running Linux for other tasks.
> LEO is more convenient/versatile than LNO, but I was astounded that LEO
> can ALSO read the AosFS partitions of old:nativeOberon.
>
> It doesn't directly fetch and display file contents.
> But you can: from linux -> running LEO -> run any *nix command.
> And of course the *nix command repetoire is massive.
>
> This is linux leveraging LEO leveraging Linux!
>
> So with 'try' being a symbolic-link to an AosFS partition on the
> old NativeOberon disk something like:
>  read the whole NO partition &
>  delete all non-ascii-chars &
>  fold the lines < 80-char-len &
>  print all lines to a file, which contain the critical name that we're
> searching;
> allows you to search the whole partition, and extract the critical text.
>
> Previously I remember examining the AosFS structure.
> IIRC Partitions.Mod has got nice clear code, and it's not difficult to
> extract
> the dir & file structure. So the actual files could perhaps be accessed.
> I wonder what would happen by 'porting' Partitions.Mode to LEO?
> --- Here's actual logged code and results including my errors:--
> >> -> System.Execute cat try | tr -d \\200-\\377 | hexdump -C | head
> >> == looks OK. So count lines containing "Heus". Let's see line-count ?
> >>
> >> -> System.Execute cat try | tr -d \\200-\\377 | fmt | grep Heus | wc -l
> >> ==1 <- ! I can see *MANY* "Heus" in many of the different 'folded'
> lines!
> >>
> >> -> System.Execute cat try | tr -d \\200-\\377 | fmt | wc
> >> == 1000653 9864738 72189840 <- 100Klines for 72MB
> >>
> >> What am I doing wrong, to fail to `grep <all lines containing "Heus">?
> >
> > Your 'tr' command is leaving behind a lot of non-printing characters in
> > the \000 to \037 range, which is going to cause 'grep' to report
> > "non-ASCII" and may be seriously confusing the 'fmt' command.  You do
> > need to preserve formatting characters such as \n, \t, \r, but you should
> > delete the others.  Try this:
> >
> >      tr -d \\000-\\007\\016-\\037\\177-\\377
> >
> > That leaves the just the range \010 (BS) through \015 (CR) and the
> > ASCII characters \040 (SPACE) through \176 (~).
>
> OK, afterwards I thought of the (chars < Octal_37), like <bell>.
> I'll test and file-away your tr-version.
> Perhaps `strings` is appropriate.
> ---- end of USEnet query:-------------
>
> For non*nix users:
>    cat try | tr -d \\200-\\377 | fmt | grep Heus | wc -l
> means: output file:try [the whole partition] &
>     delete all chars between Octal(200...377) &
>     use the `format` filter to <clean up> the lines of text &
>     output only lines containing "Heus" &
>     count and list newline, word, and byte of previous stage.
>
> So with LEO, you get the superb HCI of ETHO, PLUS the massive facilities of
> the *nix industry.
>
> == Chris Glur.
>
> Did I mention that it's free?
> Provided you can detach yourself from the herd....
>
>
>
> On 11/27/13, "??z?u??n??s ?o?" <scruty at users.sourceforge.net> wrote:
> > http://modulaware.com/mdlt/?n=89#t800-op2
> >
> > written in 1990 by Stephane Micheloud.
> >
> > since 2013 there's a free open-source Transputer emulator; follow link.
> >
> > --
> > Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related systems
> > https://lists.inf.ethz.ch/mailman/listinfo/oberon
> >
>
>
>
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>
> End of Oberon Digest, Vol 114, Issue 7
> **************************************
>
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