[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: disabling undo boundaries
From: |
Phillip Lord |
Subject: |
Re: disabling undo boundaries |
Date: |
Wed, 12 Aug 2015 23:34:26 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Stefan Monnier <address@hidden> writes:
>> My own feeling is that undo-boundaries should be the task of the mode
>> author, with sensible default behaviour (like the current one) for
>> user-centric modes (i.e. non process buffers).
>
> In 99.9% of the cases, authors don't want to know about undo boundaries,
> they should "just work", so the default is very important.
I would agree, but I still need to something that breaks so I can check
it is all working.
The closest I have got so far is with cider interaction mode (i.e. the
repl). I managed to get this to crash out with the "excessively large
undo this is probably a bug" error message after my patch, running
(doall (map #(println %)) (range 100000))
However, without my patch, emacs just runs to hang as it gets into a
tight GC cycle, presumably as the buffer gets enormous, so in fact this
really is a bug (i.e. the buffer is never truncated), and my patch
improves things.
Implementing "add an undo-boundary if there isn't one in any buffer with
a big buffer-undo-list" I can certainly do. Any reason to not do this on
a timer (i.e. why tie it to the command cycle)? In lisp? This is a ten
minute job. In C, it will take longer.
Phil
- Re: disabling undo boundaries, (continued)
- Re: disabling undo boundaries, Phillip Lord, 2015/08/08
- Re: disabling undo boundaries, Stefan Monnier, 2015/08/07
- Re: disabling undo boundaries, Stefan Monnier, 2015/08/08
- Re: disabling undo boundaries, Phillip Lord, 2015/08/09
- Re: disabling undo boundaries, Stefan Monnier, 2015/08/09
- Re: disabling undo boundaries, Phillip Lord, 2015/08/09
- Re: disabling undo boundaries, Stefan Monnier, 2015/08/09
- Re: disabling undo boundaries, Phillip Lord, 2015/08/10
- Re: disabling undo boundaries, Phillip Lord, 2015/08/10
- Re: disabling undo boundaries, Stefan Monnier, 2015/08/12
- Re: disabling undo boundaries,
Phillip Lord <=
- Re: disabling undo boundaries, Stefan Monnier, 2015/08/12
- Re: disabling undo boundaries, Phillip Lord, 2015/08/21
Re: disabling undo boundaries, Davis Herring, 2015/08/07