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- Path: sparky!uunet!lhdsy1!usho93!usmi02.midland.chevron.com!hbawl
- From: hbawl@usmi02.midland.chevron.com (Wilber L. Baker)
- Newsgroups: comp.editors
- Subject: Re: Undoing, Emacs and unlimited files ... summery.
- Summary: Those Wacky VMS Editors.
- Message-ID: <1992Jul29.133925.18820@usho93.hou281.chevron.com>
- Date: 29 Jul 92 13:39:25 GMT
- References: <1992Jul27.015736.18111@nuscc.nus.sg> <NMOUAWAD.92Jul27131847@math.waterloo.edu> <BEVAN.92Jul28174959@panda.cs.man.ac.uk>
- Sender: news@usho93.hou281.chevron.com (USENET News System)
- Organization: Chevron
- Lines: 31
-
- In article <BEVAN.92Jul28174959@panda.cs.man.ac.uk> bevan@cs.man.ac.uk (Stephen J Bevan) writes:
- >In article <NMOUAWAD.92Jul27131847@math.waterloo.edu> nmouawad@waterloo.edu (Naji Mouawad) writes:
- >
- > As far as "total undo" is concerned, I did not get any detailed
- > answer. It seems that this has to do with "logging". A technique for
- > keeping a log file of all the events that took place while the file
- > was edited. Apparently there is a lot of activity going-on within the
- > data-base community in order to find good ways for implementing the
- > logging technique.
- >
- >A while ago I posted a little survey of different editors and in
- >amongst them was "sam" by Rob Pike. This does "logging" as mentioned
- >above. "sam" can undo _any_ operation except reading/writing a file.
- >
-
- Speaking of 'logging'.... No one has mentioned the VMS editors
- EDT / EVE / (other TPU derivatives). I don't know about 'unlimited
- undo' (I've never put them through the test), but the probably are
- close since they go through so much pain to keep a JOURNAL file of
- every keystroke ever pressed.
-
- It's wild and wacky fun to be kicked off the system, get back in,
- then activate the JOURNAL file to recover all of your edits.
-
- It's especially fun when logged on from a 1200 baud terminal
- ....NOT!
-
-
- -Wilber L. Baker hbawl@[usmi02.]midland.chevron.com
- UNIX/VAX Chevron Petroleum Technology Company
- Admin. Midland, TX 79705 (915) 687-7241
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