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From: Peter Flass <peter_flass@yahoo.com>
Newsgroups: alt.folklore.computers,comp.os.linux.misc
Subject: Re: The joy of FORTRAN
Date: Mon, 30 Sep 2024 14:19:51 -0700
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Scott Lurndal <scott@slp53.sl.home> wrote:
> John Ames <commodorejohn@gmail.com> writes:
>> On Fri, 27 Sep 2024 21:49:43 -0400
>> "186282@ud0s4.net" <186283@ud0s4.net> wrote:
>> 
>>> Revelation DB system used ascii-255 as the record
>>> mark, 254 as the field marks and worked backwards
>>> from there, thus allowing about 127 levels of
>>> sub-sub values though nobody EVER used THAT many.
>> 
>> It's always struck me as funny that nobody *ever* seems to use the
>> ASCII control characters that already exist for record demarcation for
>> that purpose; aside from CR/LF/tab/NUL, and BEL/SUB/ESC in interactive-
>> terminal contexts, the whole 0x00-0x1F range might as well not exist.
>> Not that it'd be a conspicuously *good* idea, but I've always harbored
>> an impish desire to devise a format that makes use of the rest in some
>> way that maps relatively logically to the original intent/description...
>> 
> Burroughs used FS, GS, RS and US (in both EBCDIC and ASCII) for various
> related purposes (most significantly to delimit fields in the block-mode
> terminals).
> 
> 

IBM 3270s do this too.

-- 
Pete