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bug#3823: 23.1.50; skip-chars-forward does not move after forward-commen
bug#3823: 23.1.50; skip-chars-forward does not move after forward-comment
Fri, 05 Mar 2010 13:47:49 -0500
Gnus/5.13 (Gnus v5.13) Emacs/23.1.91 (gnu/linux)
> Start from "emacs -Q" and in the scratch buffer enter some empty lines
> at the top and some lines of code there so it looks like
> (message "i am at the top")
> ;; This buffer is for notes...
> ;; If you want to create a file...
> Place point at the beginning of the line ";; If you ..." and do
> M-: (progn (forward-comment (- 100)) (message "skipped %s "
> (skip-chars-forward "[:space:]")))
> skip-forward will not move forward above.
Yes, and that's what we want.
> However if you then do
> M-: (message "skipped %s " (skip-chars-forward "[:space:]"))
> it will.
Oops, indeed, it does. The patch below fixes it,
PS: The reason [:space:] doesn't skip forward is because in
emacs-lisp-mode, like in many other modes, LF has syntax "comment-end"
rather than "whitespace". It's usually not a good idea to use the
"\\s-" regexp or the [:space:] char-class for that reason: better use
something like [ \t\n\r].
=== modified file 'src/syntax.c'
--- src/syntax.c 2010-01-13 08:35:10 +0000
+++ src/syntax.c 2010-03-05 18:39:56 +0000
@@ -1747,6 +1747,7 @@
immediate_quit = 1;
+ SETUP_SYNTAX_TABLE (BEGV, 0);
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- bug#3823: 23.1.50; skip-chars-forward does not move after forward-comment,
Stefan Monnier <=