Re: [vile] An odd buglet with map!

[Thomas Dickey]

On Sat, 29 Mar 2008, Paul Fox wrote:

> thomas wrote:
> > >
> > > As I said the two map! commands do exactly what I want except for the
> > > case when I do 'r;' or 'r:', in the single character replace the original
> > > unmapped codes are used.  It had me a little confused for a while until
> > > I realised what was going on.
> >
> > I see that insert (i) and multiple-character replace (R) do mapping.
> > At the moment I'm not recalling any other single-character edits than "r".
> >
> > I'll change it to use mapped-keystroke unless I get some contrary feedback.
> >
>
> does "real" vi do this?  i tried it in vim, and i get a "recursive map"
> error, though maybe there's config to get around that.

nvi does what vile's been doing: uses the original characters.
(vim does give a recursive-map error, though it has lots of config 
settings - the help screen isn't very useful though).

Using R, nvi goes into an infinite loop...
Ditto for elvis.

Real vi uses the original characters ("r" doesn't use "map!").

> the only tricky part i can think of is, what do you do if the map
> expands to more than one character.  :map works naturally in 'i' and 'R' modes
> because those are multi-character inserts.  with 'r', how would you
> restrict it to single character replacement?

I hadn't thought of that - but then I was asking for feedback...

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net