Re: Matches for multiline regexps

[Luc Teirlinck]

Richard Stallman wrote:

       `M-x occur RET 11 C-q C-j 11 RET' finds four matches (lines 1 through 4)
       which seems logical to me.

       `M-x how-many RET 11 C-q C-j 11 RET' (with point at bob) finds two 
matches.

   One function looks for lines that match, while the other finds
   matches, so it is natural that they may differ.

But `keep-lines' and `flush-lines' also look for lines that match.
Just to be sure: is the following behavior intended:

Start with a buffer containing three lines with "11" in them and a
final newline:

11
11
11

Result of `M-x keep-lines RET 11 C-q C-j 11 RET' with point at bob:

11
11

(The `occur' interpretation would keep all three lines.) 

Result of `M-x flush-lines RET 11 C-q C-j 11 RET' with point at bob:

11

(The `occur' interpretation would delete all three lines.)

Maybe it is OK (just asking to be sure).

Sincerely,

Luc.