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Re: Calling Lisp from undo.c's record_* functions

From: Phillip Lord
Subject: Re: Calling Lisp from undo.c's record_* functions
Date: Tue, 17 Nov 2015 20:52:24 +0000
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Eli Zaretskii <address@hidden> writes:
>> There are only 7 calls to record_insert so changing the so record_insert
>> is *always* before would be possible.
> Did you look at insert_from_gap?  AFAIU, it assumes that the gap
> position stays put during the call to record_insert.  If that can call
> Lisp or GC, that assumption is false.

I didn't look at this. I'm learning C as I go, so I wouldn't put too
much weight behind my own conclusions even if I had.

>> Big change to make at this point in the release cycle.
> No, I don't think so.  We still have several months to go.
> Btw, could you perhaps write a short description of this change and
> its effects in the Lisp level for etc/NEWS?  I see there's not a word
> about this there.  Bonus points if you also update the ELisp manual.

I will do. Do I get a prize when I get enough points?


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