Re: move/copy question

[Thomas Dickey]

On Thu, Jun 06, 2024 at 01:50:48PM +0000, david sowerby wrote:
> Thanks for the quick reply.  I can live without "co" and "m", it was mostly
> curiosity on my part.  Maybe the "show-commands" should have "not implemented
> yet" added?  and thanks for all the work :-)

agreed. When I switch back to vile, I'll probably do that, as well as
making some notes on why it's not done -- perhaps "only" the syntax,
which would require some work to permit the address adjacent to the
command-name -- unlike all of the other commands.

> 
> ==========================================
> Inertia is the most powerful force in the Universe.
> 
> 
>      On Thursday, June 6, 2024 at 01:09:57 AM PDT, Thomas Dickey 
> <dickey@his.com> wrote:  
>  
>  On Thu, Jun 06, 2024 at 05:05:30AM +0000, david sowerby wrote:
> > According to the O'Reilly book Vile doesn't have the vi 'move' command (or
> > the 'copy' one either?) But checking through Vile's "show-commands" they are
> > both described -- 'move-til' and 'copy-til'.  But they don't work :-(
> > ...........or am I doing something wrong?  A search in the Archives gives no
> > result.  Another month another question.
> 
> They are in the symbol table for completeness, but as the message says,
> not implemented.  The reason for the omission is that (without a lot of
> work, of course), the vi-compatible syntax wouldn't work with the way
> vile's ":" line is parsed:
> 
>     + vi works by reading the whole line all at once, and picking out what
>       it needs.
> 
>     + vile works by accepting the line in steps which allow for
>       name-completion and scrolling through the history.
> 
>       The basic scheme of parsing in steps dates from the early 1990s.
>       Later in the 1990s, I did a lot of the name-completion and
>       history mechanism.
> 
>       While _that_ has some quirks (which I've gotten used to, and
>       overlook), getting that to work well took a lot of time :-)
> 
> The archives don't go back that far, of course (looks like that began in
> January 2006).  Paul Fox used to run a mailing list on his machine.
> I'm not aware of an archive for that, and don't have a complete set.
> 
> There was some occasional discussion of the above points, and I probably
> have some relevant mail, but digging it out would take some work :-(
> 
> The code in its current form dates from 1996, with some reformatting in 2001:
> 
> 1.277        (pgf      01-May-96): /* ARGSUSED */
> 1.277        (pgf      01-May-96): int
> 1.290        (tom      15-Mar-97): unimpl(int f GCC_UNUSED, int n GCC_UNUSED)
> 1.277        (pgf      01-May-96): {
> 1.453        (tom      21-Aug-01):    mlwarn("[Sorry, that vi command is 
> unimplemented in vile ]");
> 1.453        (tom      21-Aug-01):    return FALSE;
> 1.277        (pgf      01-May-96): }
> 1.277        (pgf      01-May-96): 
> 1.277        (pgf      01-May-96): int
> 1.277        (pgf      01-May-96): opercopy(int f, int n)
> 1.277        (pgf      01-May-96): {
> 1.453        (tom      21-Aug-01):    return unimpl(f, n);
> 1.277        (pgf      01-May-96): }
> 1.277        (pgf      01-May-96): 
> 1.277        (pgf      01-May-96): int
> 1.277        (pgf      01-May-96): opermove(int f, int n)
> 1.277        (pgf      01-May-96): {
> 1.453        (tom      21-Aug-01):    return unimpl(f, n);
> 1.277        (pgf      01-May-96): }
> 
> but the unimpl and related functions date from 1991:
> 
> REV:1.6                main.c              1991/05/31 11:12:19      pgf
> 
>   changed args to execute(), and
>   added linespec character class, and
>   added unimplemented ex functions
> 
> All of this is in RCS, but I've exported stuff to git -
> 
> https://invisible-island.net/personal/git-exports.html
> https://github.com/ThomasDickey/vile-snapshots
> https://github.com/ThomasDickey/pgf-vile-snapshots
> 
> -- 
> Thomas E. Dickey <dickey@invisible-island.net>
> https://invisible-island.net
>   

-- 
Thomas E. Dickey <dickey@invisible-island.net>
https://invisible-island.net

signature.asc
Description: PGP signature