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Re: font-locking and open parens in column zero
From: |
Richard Stallman |
Subject: |
Re: font-locking and open parens in column zero |
Date: |
Sun, 17 Sep 2006 11:12:47 -0400 |
It's the standard paren-in-column-zero problem which is decribed in the
manual and not considered a bug in Elisp fontification either. I think,
it should happen as frequently for C as it happens for Elisp.
That seems unlikely to me. In my (small) experiments
I did not observe this to happen at all. You've said it
can happen, and I will take your word for it, but it appears
to be unusual in practice.
Hence a
warning face for such parens could be useful just as it is for Elisp.
I suppose so -- and isn't the feature available for C?
When Emacs does get confused about a ( in C mode,
does it show that ( in red?
My point is that the ( usually does not appear in red
because Emacs usually does not get confused by it.
;; In Emacs 21 and later it's possible to turn off the ad-hoc
;; heuristic that open parens in column 0 are defun starters. Since
;; we have c-state-cache, that heuristic isn't useful and only causes
;; trouble, so turn it off.
That motivation is strange
The reason for C mode to set this to nil
is that C mode specifies its own way to find the start of a defun.
My understanding is that if open-paren-in-column-0-is-defun-start is t
then Emacs will ALWAYS look back for the last ( in column 0.
This is clearly wrong for C mode.
That motivation is strange since, if the c-state-cache does not contain
anything useful, C mode has to use `beginning-of-defun'.
Are you saying that this is the case where C mode fails to be
sophisticated about finding the start of the function?
Is that a bug in CC mode?
- font-locking and open parens in column zero, martin rudalics, 2006/09/10
- Re: font-locking and open parens in column zero, Richard Stallman, 2006/09/10
- Re: font-locking and open parens in column zero, martin rudalics, 2006/09/11
- Re: font-locking and open parens in column zero, Stefan Monnier, 2006/09/11
- Re: font-locking and open parens in column zero, Richard Stallman, 2006/09/11
- Re: font-locking and open parens in column zero, martin rudalics, 2006/09/14
- Re: font-locking and open parens in column zero,
Richard Stallman <=
- Re: font-locking and open parens in column zero, martin rudalics, 2006/09/17
- Re: font-locking and open parens in column zero, Richard Stallman, 2006/09/18
- Re: font-locking and open parens in column zero, martin rudalics, 2006/09/19
- Re: font-locking and open parens in column zero, Richard Stallman, 2006/09/22
- Re: font-locking and open parens in column zero, martin rudalics, 2006/09/23
- Re: font-locking and open parens in column zero, Richard Stallman, 2006/09/23
- Re: font-locking and open parens in column zero, martin rudalics, 2006/09/24
- Re: font-locking and open parens in column zero, Stefan Monnier, 2006/09/24
- Re: font-locking and open parens in column zero, martin rudalics, 2006/09/25
- Re: font-locking and open parens in column zero, Richard Stallman, 2006/09/24