* diff-yank-handler
@ 2005-07-22 12:41 Kim F. Storm
2005-07-22 20:02 ` diff-yank-handler Stefan Monnier
0 siblings, 1 reply; 2+ messages in thread
From: Kim F. Storm @ 2005-07-22 12:41 UTC (permalink / raw)
diff-mode.el contains the following which isn't used anywhere.
I suppose this is due to the "FIXME" comment below.
What need to be done to complete this?
(defconst diff-yank-handler '(diff-yank-function))
(defun diff-yank-function (text)
;; FIXME: the yank-handler is now called separately on each piece of text
;; with a yank-handler property, so the next-single-property-change call
;; below will always return nil :-( --stef
(let ((mixed (next-single-property-change 0 'yank-handler text))
(start (point)))
;; First insert the text.
(insert text)
;; If the text does not include any diff markers and if we're not
;; yanking back into a diff-mode buffer, get rid of the prefixes.
(unless (or mixed (derived-mode-p 'diff-mode))
(undo-boundary) ; Just in case the user wanted the prefixes.
(let ((re (save-excursion
(if (re-search-backward "^[><!][ \t]" start t)
(if (eq (char-after) ?!)
"^[!+- ][ \t]" "^[<>][ \t]")
"^[ <>!+-]"))))
(save-excursion
(while (re-search-backward re start t)
(replace-match "" t t)))))))
I would suggest that we could add a 5th element to the yank-handler
indicating that the string covered by this yank-handler should
be combined with the next yank-handler.
We could then "FIXIT" with:
(defconst diff-yank-handler '(diff-yank-function nil nil nil t))
--
Kim F. Storm <storm@cua.dk> http://www.cua.dk
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: diff-yank-handler
2005-07-22 12:41 diff-yank-handler Kim F. Storm
@ 2005-07-22 20:02 ` Stefan Monnier
0 siblings, 0 replies; 2+ messages in thread
From: Stefan Monnier @ 2005-07-22 20:02 UTC (permalink / raw)
Cc: emacs-devel
> diff-mode.el contains the following which isn't used anywhere.
> I suppose this is due to the "FIXME" comment below.
> What need to be done to complete this?
I think what needs to be done is to redefine the kill functions in diff-mode
buffers so as to add a yank-handler to the killed text.
> I would suggest that we could add a 5th element to the yank-handler
> indicating that the string covered by this yank-handler should
> be combined with the next yank-handler.
It may be a good alternative solution, but I'm not sure what that means.
Stefan
^ permalink raw reply [flat|nested] 2+ messages in thread
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