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Re: Calling Lisp from undo.c's record_* functions
From: |
Eli Zaretskii |
Subject: |
Re: Calling Lisp from undo.c's record_* functions |
Date: |
Thu, 19 Nov 2015 19:58:26 +0200 |
> From: Stefan Monnier <address@hidden>
> Cc: address@hidden (Phillip Lord), Richard Stallman <address@hidden>,
> address@hidden
> Date: Thu, 19 Nov 2015 12:49:57 -0500
>
> > prepare_to_modify_buffer. This seems to avoid calling Lisp while the
> > gap is being manipulated, but my question is: are there any pitfalls
> > to calling Lisp code on the level of insdel.c functions? I'd like to
> > hear your opinion before we decide whether to install the proposed
> > solution, or look for a safer one.
>
> As mentioned earlier, this function has been running Elisp code forever
> already via the before-change-functions hook.
That is true, but unlike before-change-functions, which is not always
non-nil, the undo-related call will always be run. So if calling Lisp
there could cause some problems, those problems will become much more
frequent now.
> So we don't really have a choice here.
There's always a choice.
- Re: Calling Lisp from undo.c's record_* functions, (continued)
- Re: Calling Lisp from undo.c's record_* functions, Eli Zaretskii, 2015/11/17
- Re: Calling Lisp from undo.c's record_* functions, Phillip Lord, 2015/11/17
- Re: Calling Lisp from undo.c's record_* functions, Stefan Monnier, 2015/11/17
- Re: Calling Lisp from undo.c's record_* functions, Eli Zaretskii, 2015/11/17
- Re: Calling Lisp from undo.c's record_* functions, Phillip Lord, 2015/11/18
- Re: Calling Lisp from undo.c's record_* functions, Eli Zaretskii, 2015/11/18
- Re: Calling Lisp from undo.c's record_* functions, Stefan Monnier, 2015/11/18
- Re: Calling Lisp from undo.c's record_* functions, Phillip Lord, 2015/11/19
- Re: Calling Lisp from undo.c's record_* functions, Eli Zaretskii, 2015/11/19
- Re: Calling Lisp from undo.c's record_* functions, Stefan Monnier, 2015/11/19
- Re: Calling Lisp from undo.c's record_* functions,
Eli Zaretskii <=
- Re: Calling Lisp from undo.c's record_* functions, Stefan Monnier, 2015/11/19
- Re: Calling Lisp from undo.c's record_* functions, Phillip Lord, 2015/11/22
- Re: Calling Lisp from undo.c's record_* functions, John Wiegley, 2015/11/22
- Re: Calling Lisp from undo.c's record_* functions, Phillip Lord, 2015/11/23
- Re: Calling Lisp from undo.c's record_* functions, Eli Zaretskii, 2015/11/22
- Re: Calling Lisp from undo.c's record_* functions, Phillip Lord, 2015/11/23
- Re: Calling Lisp from undo.c's record_* functions, Eli Zaretskii, 2015/11/25
- Re: Calling Lisp from undo.c's record_* functions, Richard Stallman, 2015/11/25
- Re: Calling Lisp from undo.c's record_* functions, Phillip Lord, 2015/11/26
- Re: Calling Lisp from undo.c's record_* functions, Phillip Lord, 2015/11/17