Thank you very much, Tim. Sorry for my confusing illustration.

You have point a good way to solve my problem. Changing grep-process-setup
seems don't work, so I change the function of grep-find.

One slight problem is that, since the grep command takes some time, even
though we define an after-defadive, the function is executed before *grep*
buffer is stable.

My workaround is to sleep for some while. No idea whether we have better
solution.


(defadvice grep-find (after show-grep())
 (save-excursion
   (setq SLEEP_INTERVAL 2)
   (set-buffer "*grep*")
   (sleep-for SLEEP_INTERVAL)
   (message
    "%d matches found"
    (- (count-lines (point-min) (point-max)) 6))
   )
)
(ad-activate 'grep-find)


On Mon, Jun 28, 2010 at 9:51 PM, Tim Landscheidt <tim@tim-landscheidt.de>wrote:

> filebat Mark <filebat.mark@gmail.com> wrote:
>
> >> > I am wondering how to show the count of matches when grep-find. Like
> the
> >> > following.
> >> > ,-----------
> >> > | -*- mode: grep; default-directory:
> >> > "d:/ntemacs23/myemacs/private_data/out_of_svn/" -*-
> >> > | Grep started at Mon Jun 28 17:46:18
> >> > |
> >> > |  find . -name ".svn" -prune -o -type f -print0 | xargs -0 -e grep
> -inH
> >> -e
> >> > emacs
> >> > | ./#tmp.txt#:7:#+TAGS: ARCHIVE(a) WEBPAGE(w) LIFE(l) EMACS(e)
> >> IMPORTANT(i)
> >> > HARD(h) COMPUTER(c) RECOMMENDATE(r) Tool(t)
> >> > | ./#tmp.txt#:47438:* TODO log4j-mode in emacs
> >> > | ./#tmp.txt#:47529:Hi emacsers
> >> > | ./tmp.html:554:<p class="creator">HTML generated by org-mode 6.35i
> in
> >> > emacs 23</p>
> >> > | ./tmp.html~:153:<p class="creator">HTML generated by org-mode 6.35i
> in
> >> > emacs 23</p>
> >> > | ./tmp.txt:7:#+TAGS: ARCHIVE(a) WEBPAGE(w) LIFE(l) EMACS(e)
> IMPORTANT(i)
> >> > HARD(h) COMPUTER(c) RECOMMENDATE(r) Tool(t)
> >> > | ./tmp.txt:47438:* TODO log4j-mode in emacs
> >> > |
> >> > | Grep finished (7 matches found) at Mon Jun 28 17:46:20
> >> > `-----------
>
> >> > IMHO, one feasible way may be counting the output of *grep* buffer.
> >> > Before moving any further, I am very willing to hear your ideas,
> comment
> >> or
> >> > codesnipet for this?
>
> >> - "find ... | xargs -0r grep ... | wc -l"?
> >> - "find ... | xargs -0r cat | grep -c"?
> >> - Read "(7 matches found)"?
>
> > Your commands can help to count the matches, however my point is to get
> both
> > the matches and the count of how many matches. ^-^
>
> Your point /was/ "how to show the count of matches". For
> your current point, you could:
>
> a) put something like:
>
>   | (save-excursion
>   |   (set-buffer "*grep*")
>   |   (message
>   |    "%d matches found"
>   |    (- (count-lines (point-min) (point-max))
>   |       6)))
>
>   on a hot key,
>
> b) defadvice grep-process-setup/set grep-setup-hook so that
>   the above will be executed when grep finishes.
>
> Tim
>
>
>


-- 
Thanks & Regards

Denny Zhang