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Re: indentation via text or overlay property?
From: |
Kevin Rodgers |
Subject: |
Re: indentation via text or overlay property? |
Date: |
Fri, 06 Jun 2003 10:23:46 -0600 |
User-agent: |
Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:0.9.4.1) Gecko/20020406 Netscape6/6.2.2 |
Stefan Monnier wrote:
"Kevin" == Kevin Rodgers <ihs_4664@yahoo.com> writes:
Is there a way to implement indentation via a text property like left-margin
or an overlay property like before-string?
(put-text-property start end 'display '(space :align-to N))
will make the text between `start' and `end' appear like a space
that ends at column N.
Cool! But since those spaces are displayed instead of the original text (not
in addition to it), I don't see how to use that to implement indentation.
For example, let's say I have a <foo> tag at the beginning of a line that I
want displayed at column 6. If I specify '(space :align-to 5) for the
display property at the position of "<" in the buffer, it gets indented like
I want except that the "<" is no longer visible. And apparently I can't use
a value like
(list '(space :align-to N) (buffer-substring start end))
to get both the spaces and the original text displayed.
This is at least documented in the NEWS file of Emacs-21.1, and
I'd expect there to be something about it as well in the elisp manual.
Thanks for the pointers. Is the correct way to test for this feature:
(>= emacs-major-version 21)
--
<a href="mailto:<kevin.rodgers@ihs.com>">Kevin Rodgers</a>
- indentation via text or overlay property?, Kevin Rodgers, 2003/06/04
- Re: indentation via text or overlay property?, Stefan Monnier, 2003/06/04
- Re: indentation via text or overlay property?,
Kevin Rodgers <=
- Re: indentation via text or overlay property?, Stefan Monnier, 2003/06/06
- Re: indentation via text or overlay property?, Kevin Rodgers, 2003/06/06
- Re: indentation via text or overlay property?, Stefan Monnier, 2003/06/06
- Re: indentation via text or overlay property?, Kevin Rodgers, 2003/06/09
- Re: indentation via text or overlay property?, Stefan Monnier, 2003/06/09