* Arg preserve_echo_area is ignored in redisplay_internal ()
@ 2010-01-08 12:34 Kenichi Handa
2010-01-08 13:01 ` Eli Zaretskii
0 siblings, 1 reply; 3+ messages in thread
From: Kenichi Handa @ 2010-01-08 12:34 UTC (permalink / raw)
To: emacs-devel
In xdisp.c, redisplay_internal has the arg
preserve_echo_area but it is not used in that function.
Does it mean that the arg is obsolete now, or that there's
some bug in the function?
---
Kenichi Handa
handa@m17n.org
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Arg preserve_echo_area is ignored in redisplay_internal ()
2010-01-08 12:34 Arg preserve_echo_area is ignored in redisplay_internal () Kenichi Handa
@ 2010-01-08 13:01 ` Eli Zaretskii
2010-01-08 13:19 ` Kenichi Handa
0 siblings, 1 reply; 3+ messages in thread
From: Eli Zaretskii @ 2010-01-08 13:01 UTC (permalink / raw)
To: Kenichi Handa; +Cc: emacs-devel
> From: Kenichi Handa <handa@m17n.org>
> Date: Fri, 08 Jan 2010 21:34:22 +0900
>
> In xdisp.c, redisplay_internal has the arg
> preserve_echo_area but it is not used in that function.
> Does it mean that the arg is obsolete now, or that there's
> some bug in the function?
Neither. It's a provision for future development, as the commentary
says:
/* If PRESERVE_ECHO_AREA is nonzero, it means this redisplay is not in
response to any user action; therefore, we should preserve the echo
area. (Actually, our caller does that job.) Perhaps in the future
avoid recentering windows if it is not necessary; currently that
causes some problems. */
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Arg preserve_echo_area is ignored in redisplay_internal ()
2010-01-08 13:01 ` Eli Zaretskii
@ 2010-01-08 13:19 ` Kenichi Handa
0 siblings, 0 replies; 3+ messages in thread
From: Kenichi Handa @ 2010-01-08 13:19 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: emacs-devel
In article <83y6k8agym.fsf@gnu.org>, Eli Zaretskii <eliz@gnu.org> writes:
> > In xdisp.c, redisplay_internal has the arg
> > preserve_echo_area but it is not used in that function.
> > Does it mean that the arg is obsolete now, or that there's
> > some bug in the function?
> Neither. It's a provision for future development, as the commentary
> says:
> /* If PRESERVE_ECHO_AREA is nonzero, it means this redisplay is not in
> response to any user action; therefore, we should preserve the echo
> area. (Actually, our caller does that job.) Perhaps in the future
> avoid recentering windows if it is not necessary; currently that
> causes some problems. */
Ah, I see. "Actually, our caller does that job" means that
the arg can be ignored currently. Thank you.
---
Kenichi Handa
handa@m17n.org
^ permalink raw reply [flat|nested] 3+ messages in thread
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2010-01-08 12:34 Arg preserve_echo_area is ignored in redisplay_internal () Kenichi Handa
2010-01-08 13:01 ` Eli Zaretskii
2010-01-08 13:19 ` Kenichi Handa
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