[EMAIL PROTECTED] (Kim F. Storm) writes:
> Instead we can explicitly put an inivisible property together with the
> display property on a priece of "hidden" text which should be ignored
> by searches. That need a little work to check all uses of display
> properties, but it doesn't break any old code relying on the current
> behaviour.
Yes, there are existing packages where finding the underlying text
might be useful. For example, in w3m images are placed over the text
extracted from the ALT="" image HTML attribute. Finding it with isearch
seems useful.
> I don't know whether it actually works to put both invisible and
> display on some text (with the effect of showing the image and
> ignoring the under-laying text). Would someone make some examples
> to check it?
The `display' property takes precedence over the `invisible' property:
(progn
(goto-char (point-min))
(insert "abcdefghi\n")
(add-text-properties (- (point) 9) (- (point) 2)
`(display ,(create-image (expand-file-name "gnu.xpm" data-directory) 'xpm)
invisible t))
(goto-char (point-min))
(search-forward "def"))
And the image is visible. Incremental search skips the underlying text,
but low-level search functions find it.
--
Juri Linkov
http://www.jurta.org/emacs/
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