Re: Verifying the Emacs manual

[Alan M. <ac...@mu...>]

Hi, Richard!

On Tue, 31 Jan 2006, Richard M. Stallman wrote:

>In man/display.texi it says:

>  Comment and string fontification (or ``syntactic'' fontification)
>relies on analysis of the syntactic structure of the buffer text.  For
>the sake of speed, some modes, including C mode and Lisp mode,
>rely on a special convention: an open-parenthesis or open-brace in the
>leftmost column always defines the @w{beginning} of a defun, and is
>thus always outside any string or comment.  (@xref{Left Margin
>Paren}.)  If you don't follow this convention, Font Lock mode can
>misfontify the text that follows an open-parenthesis or open-brace in
>the leftmost column that is inside a string or comment.

>Is that still true for C mode?

No.  Or, at least, it shouldn't be.

In more detail:

(i) CC Mode tries to set open-paren-in-column-0-is-defun-start
buffer-locally to nil.  I think there's a bug in cc-defs.el, though, so
it doesn't succeed.  I'll look at this tomorrow, and fix it if need be.

(ii) If the user binds C-M-[ae] to c-\(beginining\|end\)-of-defun, those
commands do the Right Thing regardless of
open-paren-in-column-0-is-defun-start.

Incidentally, I'm about to release the bug-fix release CC Mode 5.31.3.
There are show-stopper bugs fixed in it.  I hope to commit it to savannah
by ~Wednesday 8th February, possibly sooner.

-- 
Alan Mackenzie (Munich, Germany)