From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <3C4D4941.924F417D@strakt.com>
From: Boyd Roberts <boyd@strakt.com>
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To: 9fans@cse.psu.edu
Subject: Re: [9fans] Getting started in Plan9 - help
References: <20020122025440.A7170199D5@mail.cse.psu.edu>
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Date: Tue, 22 Jan 2002 12:13:05 +0100
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dmr@plan9.bell-labs.com wrote:
> True enough; that said, I retain considerable fondness for
> the history mechanism of later research Unix systems. It
> was adapted from earlier U of Toronto versions, I believe,
> revived by Rob, and later put away again.

Yes, I liked it too, so much so I hacked the SysVr2 shell
to do it and got it to do 'whatis', chucked out 'type'
and added 'builtin'.

Then all I needed was =.c

    http://home.fr.inter.net/boyd/code/=.c

[hmm... that code is old; K&R C]

I believe the code was re-hacked for the unix rc and
fixed a bug with smashing tabs into spaces when you
typed # [delete char] inside a tab.  I could never
bring myself to break the simplicity of the editing
loop to fix that bug.

I also had access to the 8th and 9th Edition sources
to =.c and saw what contorsions it went to to fix the
bug I didn't want to fix.

I assume rob (or someone) ripped the code out of qed to
write =.c