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From: groff%community-chest.mitre.org@gateway.mitre.ORG
Newsgroups: comp.unix.wizards
Subject: help w/ a vi map
Message-ID: <7881@brl-adm.ARPA>
Date: Tue, 16-Jun-87 17:26:19 EDT
Article-I.D.: brl-adm.7881
Posted: Tue Jun 16 17:26:19 1987
Date-Received: Sun, 21-Jun-87 07:54:43 EDT
Sender: news@brl-adm.ARPA
Lines: 27



     I have encountered a puzzling problem w/ setting up a map in vi.
It began w/ a file I had redirected from 'man printcap'.  This file had
_^H's thru-out.  I could have simply done :1,$s/_^H//g and gone merrily
on my way.  (This worked fine.)  I decided to create a map for this function
by doing :map ^R :1,$s/_^H//g^M   - this worked SORT OF, but NOT as I would have
expected.  (Control characters and carriage return are escaped w/ ^V.)

     The puzzling sequence follows: (starting w/ file full of _^H's)
	1)  Issue the command longhand  (works)
	2)  Undo the command ('u') 
	3)  Issue the map command - ^R  (works)
	4)  Undo the command, and quit the file  (no changes)
	5)  BTW the map setup is in my EXINIT variable
	6)  'vi' the file again and immediately issue the map command.
	7)  Get the error: "No previous regular expression"
     
     Would really appreciate enlightenment from anyone who understands what is
happening.

					- Paul Groff
					  groff@mitre.arpa
					  The MITRE Corporation
					  7525 Colshire Dr.
					  McLean, VA 22102
					  (703) 883-5810