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Re: emacs hangs in jit-lock

From: Richard Stallman
Subject: Re: emacs hangs in jit-lock
Date: Sat, 02 Dec 2006 12:56:08 -0500

    2006-11-08  Alan Mackenzie  <address@hidden>

            * emacs-lisp/lisp.el (beginning-of-defun-raw): Code up the
            case (eq open-paren-in-column-0-is-defun-start nil) by searching
            for least nested open-paren.

I thought that the reason CC mode sets
open-paren-in-column-0-is-defun-start to nil is that it provided a
beginning-of-defun-function, which would have prevented this from
causing a big slowdown.  But I see it does not.

Should we add something to set beginning-of-defun-function?

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