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Re: Question about copy-region-as-kill
From: |
Kim F. Storm |
Subject: |
Re: Question about copy-region-as-kill |
Date: |
09 Apr 2002 11:31:25 +0200 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.2.50 |
John Wiegley <address@hidden> writes:
> >>>>> On Mon Apr 8, Stefan writes:
>
> > I think this points to a good compromise: strip any property whose
> > value is the same across the whole copied text.
>
> This still does not solve the problem of copying the read-only
> property that's attached to Eshell prompts.
Maybe read-only is special...?
Does it ever make sense to yank a read-only property into a buffer?
If not, it doesn't make sense to ever copy that property.
>
> Why can't a mode author decide to inhibit property copying in his
> buffer? I still haven't seen a convincing argument for denying me a
> buffer-local configuration variable.
>
I agree, but this doesn't solve the problem in general...
Consider:
- copy text in one major mode buffer and paste it into another
major mode buffer.
In this case, it sometimes makes sense to copy face properties
(e.g. from a C to an RTF file), while it doesn't make sense
in other cases, (e.g. from an RTF file to a C file).
- copy text into a buffer with font-lock enabled
In this case, the font-lock should take care of fontifying
the inserted text, ignoring any previous fontification...
- copy text from a buffer with font-lock to a buffer without
This is similar to the first case, so in some cases with
does make sense, but in other cases it doesn't.
I don't say that this is a complete solution, but at least
two buffer-local variables are needed IMHO:
* remove-text-properties-on-copy
A list of text-properties to be removed when copying text
from this buffer (nil=none, t=all)
* remove-text-properties-on-insert
A list of text-properties to be removed when inserting text
into this buffer (nil=none, t=all)
kill-ring-save, copy-region-as-kill, and kill-region should
look at these.
I also considered having this:
* remove-font-lock-properties-on-copy
If non-nil, text-properties set by font-lock are automatically
removed on copy.
But this isn't really needed (or possible); I don't think we really
know whether a specific property was added by font-locking or added
explicitly by the user. However, IMO it doesn't really seem to make
much sense to have both font-locking and the user adding properties as
well. So when font-locking is turned on in a buffer, it seems to
make sense to set both of these variables to t (remove all).
> John
>
> _______________________________________________
> Emacs-devel mailing list
> address@hidden
> http://mail.gnu.org/mailman/listinfo/emacs-devel
>
>
--
Kim F. Storm <address@hidden> http://www.cua.dk
- Re: Question about copy-region-as-kill, (continued)
- Re: Question about copy-region-as-kill, Karl Eichwalder, 2002/04/06
- Re: Question about copy-region-as-kill, Kai Großjohann, 2002/04/06
- Re: Question about copy-region-as-kill, Alex Schroeder, 2002/04/06
- Re: Question about copy-region-as-kill, Richard Stallman, 2002/04/07
- Re: Question about copy-region-as-kill, Miles Bader, 2002/04/07
- Re: Question about copy-region-as-kill, Karl Eichwalder, 2002/04/06
- Re: Question about copy-region-as-kill, Alan Shutko, 2002/04/06
- Re: Question about copy-region-as-kill, Karl Eichwalder, 2002/04/07
- Re: Question about copy-region-as-kill, Stefan Monnier, 2002/04/08
- Re: Question about copy-region-as-kill, John Wiegley, 2002/04/08
- Re: Question about copy-region-as-kill,
Kim F. Storm <=
- Re: Question about copy-region-as-kill, Eli Zaretskii, 2002/04/09
- Re: Question about copy-region-as-kill, Miles Bader, 2002/04/09
- Re: Question about copy-region-as-kill, Kim F. Storm, 2002/04/09
- Re: Question about copy-region-as-kill, Miles Bader, 2002/04/09
- Re: Question about copy-region-as-kill, Eli Zaretskii, 2002/04/09
- Re: Question about copy-region-as-kill, Richard Stallman, 2002/04/10
- Re: Question about copy-region-as-kill, Richard Stallman, 2002/04/10
- Re: Question about copy-region-as-kill, Kim F. Storm, 2002/04/10
- Re: Question about copy-region-as-kill, Richard Stallman, 2002/04/11
- Re: Question about copy-region-as-kill, Kim F. Storm, 2002/04/11