--- Begin Message ---
Subject: |
lispref - searching.texi: Updating of looking-back arguments and return values in the example |
Date: |
Sun, 02 Nov 2008 20:06:29 +0100 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux) |
Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:
See the diff attached. Note that I copied the explanation for greedy
argument of `looking-back' function. Because I'm not a native speaker
so probably this paragraph requires some rephrasing.
diff -ud /home/sewi/emacs_cvs/emacs/doc/lispref/searching.texi
/home/sewi/emacs_cvs/emacs/doc/lispref/searching_cor.texi
--- /home/sewi/zrodla/elisp_files/emacs_cvs/emacs/doc/lispref/searching.texi
2008-11-02 19:39:21.000000000 +0100
+++
/home/sewi/zrodla/elisp_files/emacs_cvs/emacs/doc/lispref/searching_cor.texi
2008-11-02 19:54:10.000000000 +0100
@@ -1094,7 +1094,7 @@
@end example
@end defun
-@defun looking-back regexp &optional limit
+@defun looking-back regexp &optional limit greedy
This function returns @code{t} if @var{regexp} matches text before
point, ending at point, and @code{nil} otherwise.
@@ -1105,6 +1105,10 @@
not to search before @var{limit}. In this case, the match that is
found must begin at or after @var{limit}.
+If greedy is non-nil, extend the match backwards as far as possible,
+stopping when a single additional previous character cannot be part
+of a match for regexp.
+
@example
@group
---------- Buffer: foo ----------
@@ -1408,7 +1412,7 @@
(re-search-forward "The \\(cat \\)")
(match-beginning 0)
(match-beginning 1))
- @result{} (9 9 13)
+ @result{} (17 9 13)
@end group
@group
Diff finished. Sun Nov 2 19:54:17 2008
--
regards,
Seweryn Kokot
--- End Message ---
--- Begin Message ---
Subject: |
Re: bug#1299: lispref - searching.texi: Updating of looking-back arguments and return values in the example |
Date: |
Mon, 03 Nov 2008 14:21:31 -0500 |
Seweryn Kokot <sewkokot@gmail.com> wrote:
> See the diff attached. Note that I copied the explanation for greedy
> argument of `looking-back' function.
Thanks. I've checked in your patch with some minor modifications.
martin rudalics <rudalics@gmx.at> wrote:
> FWIW, it might not harm to also resolve the contradiction that REGEXP
> can match _before_ LIMIT when GREEDY is non-nil (in the manual _and_
> the doc-string).
I noted this in the manual and the doc-string. Thanks.
--- End Message ---