> We're talking about what sentence-end should match; that is to say,
> where M-e should stop.
>
> It should stop after an ellipsis if the ellipsis is followed by two
> spaces or a newline. An ellipsis followed by just one space is not
> the end of a sentence.
>
> As for filling, it does not break the line after a period
> followed by one space, because doing so would make it appear
> to be the end of a sentence.
While looking at fixing this, I noticed that there are more cases
where `fill-nobreak-p' doesn't allow breaking at the end of a sentence
(where M-e stops).
For example, filling:
It's not necessary to buy a new computer just for a DVD
drive. . . Today, the most important part of a computer is the amount
of RAM -- the more, the better. It's far more important than a fast
CPU.
doesn't break at two spaces between `. . .' and `Today'. Whereas the
expected result of filling would be:
It's not necessary to buy a new computer just for a DVD drive. . .
Today, the most important part of a computer is the amount of RAM --
the more, the better. It's far more important than a fast CPU.
There is another example:
It's not necessary to buy a new computer just for a DVD
drive. . . Today, the most important part of a computer is the amount
of RAM -- the more, the better. It's far more important than a fast
CPU.
where filling breaks at wrong point, turning this paragraph into:
It's not necessary to buy a new computer just for a DVD drive. . .
Today, the most important part of a computer is the amount of RAM --
the more, the better. It's far more important than a fast CPU.
while the expected result should have breaking at two spaces:
It's not necessary to buy a new computer just for a DVD drive.
. . Today, the most important part of a computer is the amount of
RAM -- the more, the better. It's far more important than a fast CPU.
The patch below fixes these cases as well as the original problem:
Index: lisp/textmodes/fill.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/textmodes/fill.el,v
retrieving revision 1.181
diff -c -r1.181 fill.el
*** lisp/textmodes/fill.el 9 Aug 2005 14:01:29 -0000 1.181
--- lisp/textmodes/fill.el 14 Oct 2005 11:38:09 -0000
***************
*** 344,356 ****
;; it at the end of the line.
(and sentence-end-double-space
(save-excursion
! (skip-chars-backward ". ")
! (looking-at "\\. \\([^ ]\\|$\\)")))
;; Another approach to the same problem.
(save-excursion
! (skip-chars-backward ". ")
! (and (looking-at "\\.")
! (not (looking-at (sentence-end)))))
;; Don't split a line if the rest would look like a new paragraph.
(unless use-hard-newlines
(save-excursion
--- 344,357 ----
;; it at the end of the line.
(and sentence-end-double-space
(save-excursion
! (skip-chars-backward " ")
! (and (eq (preceding-char) ?.)
! (looking-at " \\([^ ]\\|$\\)"))))
;; Another approach to the same problem.
(save-excursion
! (skip-chars-backward " ")
! (and (eq (preceding-char) ?.)
! (not (progn (forward-char -1) (looking-at (sentence-end))))))
;; Don't split a line if the rest would look like a new paragraph.
(unless use-hard-newlines
(save-excursion
--
Juri Linkov
http://www.jurta.org/emacs/
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