Re: Fwd: Mouse reporting and new standards

On Sun, Jan 22, 2012 at 02:48:15PM +0100, Egmont Koblinger wrote:
> Hi,
>
> On Sun, Jan 22, 2012 at 14:31, Bram Moolenaar <Bram@moolenaar.net> wrote:
>
> >
> >
> > So, if we first send DECSET 1005 and then send DECSET 1006 then,
> > depending on the version of the terminal emulator, we keep getting the
> > normal mouse codes or the new SGR 1006 mouse codes. We should be able
> > to decode both.
> >
>
> Bram, I guess you meant 1000 or 1002 instead of 1005 above. In that case
> you're right.
>
> I'll push other terminal emulators towards supporting 1006. First,
> however, I'd like to hear Thomas explicitly confirming that ^[[< is (and
> will always remain) a unique prefix for extended mouse events only, and
> then hear an "okay" from urxvt's developer (I'll talk to him).

Actually it's the combination of \e[< and the final character that makes
the string unique. There are four characters which can be used to denote
a private mode: "?", "=", ">" and "<" (see ECMA-48 section 5.4).

The first three are used in various ways in different terminals. The last
seems to be rarely used, so I chose to use that.

Conceivably some other escape sequence could be implemented (I don't have
any plans for that). I'm assuming that vim will check the final character.

> Once this is done, it'll be okay to add 1006 support to Vim. (In the mean
> time I guess 1015 support could be dropped; this would make extended mouse
> coords stop working in some versions of some terminals, but would probably
> also simplify Vim's code. But it's okay to keep 1015 too.)
>
> thanks,
> egmont
>
>
>
> >
> > Note that in ctlseqs.html in the DECSET list 1006 and 1015 are not
> > documented.
> >
> > --
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> >
> > /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net
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--
Thomas E. Dickey <dickey@invisible-island.net>
http://invisible-island.net
ftp://invisible-island.net