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Re: Longlines and insert
From: |
Richard M. Stallman |
Subject: |
Re: Longlines and insert |
Date: |
Wed, 16 Nov 2005 17:01:31 -0500 |
> Maybe longlines-mode could provide a variable
> "longlines-inserted-LF-are-hard" and then use it in an
> after-change-functions hook to mark all inserted LF as hard when that
> variable is non-nil.
>
> I'd guess that the variable should be non-nil by default and only bound to
> nil at a few specific spots, hopefully all of them in longlines.el.
The problem with using an after-change-function is that the function
is only told that the text was changed in a particular region, not
what the change was. There is no way to tell whether a soft newline
encountered in that region is a legit soft newline, or one produced by
an (insert "foo\n") call.
A before-change-function can record the old text, and the
after-change-function can compare the new text with it. That way it can
see whether newlines were inserted.
However, if we really want a feature that makes all inserted newlines hard,
it would be easier to implement that within `insert' itself.
Let me be a little more specific: this would be a variable
`insert-string-filters', normally bound to nil. insert_string (in
insdel.c) checks the value of insert-string-filters passed to it. If
non-nil, it makes use of it as follows:
I think the added generality of that feature would, in this case, be
a mistake. It would make things slower and harder to use.
If the hard-newline variable is enough to do the job,
I would rather stick to that idea. It is simpler and less risky.
- Longlines and insert, Chong Yidong, 2005/11/14
- Re: Longlines and insert, Kevin Rodgers, 2005/11/15
- Re: Longlines and insert, Paul Pogonyshev, 2005/11/15
- Re: Longlines and insert, Kevin Rodgers, 2005/11/15
- Re: Longlines and insert, Stefan Monnier, 2005/11/15
- Re: Longlines and insert, Chong Yidong, 2005/11/15
- Re: Longlines and insert, Stefan Monnier, 2005/11/15
- Re: Longlines and insert,
Richard M. Stallman <=
- Re: Longlines and insert, Chong Yidong, 2005/11/16
- Re: Longlines and insert, Kevin Rodgers, 2005/11/17
- Re: Longlines and insert, Paul Pogonyshev, 2005/11/17
- Re: Longlines and insert, Kevin Rodgers, 2005/11/17
- Re: Longlines and insert, Paul Pogonyshev, 2005/11/18
- Re: Longlines and insert, Richard M. Stallman, 2005/11/18
- Re: Longlines and insert, Ryan Yeske, 2005/11/15
- Re: Longlines and insert, Chong Yidong, 2005/11/15
Re: Longlines and insert, Chong Yidong, 2005/11/15