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Re: AW: font-locking and open parens in column 0
From: |
martin rudalics |
Subject: |
Re: AW: font-locking and open parens in column 0 |
Date: |
Sun, 12 Nov 2006 20:45:03 +0100 |
User-agent: |
Mozilla Thunderbird 1.0 (Windows/20041206) |
> However, I did not realize that CC mode actually used that case. I
> thought it had a beginning-of-defun-function. I was surprised just
> now to see that it didn't have one. Perhaps that should be changed.
I've been asking before why c-mode cannot use `c-beginning-of-defun'
here. Is it because syntax-table properties haven't been set up? I
recall invoking `c-beginning-of-defun' in arbitrary not yet fontified
text and getting strange results.
> However, taking out the use of syntax-ppss in beginning-of-defun-raw
> isn't the right way to get good behavior in CC mode. That would only
> make it parse from the start of the file every time.
When scrolling through a buffer backwards, the current patch will cause
parsing from bob every time I scroll.
> (In any case, such a problem won't arise in Emacs Lisp mode, since
> open-paren-in-column-0-is-defun-start = t.)
`open-paren-in-column-0-is-defun-start' is a user option.
> A reliable way to get behavior 1 is to use syntax-ppss rather than
> beginning-of-defun.
>
> That is a good point. Maybe some uses of beginning-of-defun
> (such as in Font Lock) ought to use syntax-ppss instead.
This would introduce a circular dependency since `syntax-ppss' may call
`beginning-of-defun'.
> The proposed patch basically tries to make beginning-of-defun follow the
> behavior number 1 and to make it do so reliably.
>
> I don't see it that way.
I see it Stefan's way.
- AW: font-locking and open parens in column 0, Mackenzie, Alan, 2006/11/03
- Re: AW: font-locking and open parens in column 0, martin rudalics, 2006/11/03
- Re: font-locking and open parens in column 0, Stefan Monnier, 2006/11/03
- Re: AW: font-locking and open parens in column 0, Richard Stallman, 2006/11/04
- Re: AW: font-locking and open parens in column 0, Stefan Monnier, 2006/11/10
- Re: AW: font-locking and open parens in column 0, Richard Stallman, 2006/11/10
- Re: AW: font-locking and open parens in column 0, Stefan Monnier, 2006/11/10
- Re: AW: font-locking and open parens in column 0, Richard Stallman, 2006/11/12
- Re: AW: font-locking and open parens in column 0, Richard Stallman, 2006/11/12
- Re: AW: font-locking and open parens in column 0,
martin rudalics <=
- Re: AW: font-locking and open parens in column 0, Stefan Monnier, 2006/11/13