From: "Yu,Gang" <wuhanyugang@gmail.com>
To: "Thien-Thi Nguyen" <ttn@gnuvola.org>
Cc: help-gnu-emacs@gnu.org
Subject: Re: process communication help
Date: Wed, 30 May 2007 15:53:57 +0800 [thread overview]
Message-ID: <48378d570705300053g312524dbx2da09b79657a4806@mail.gmail.com> (raw)
In-Reply-To: <87tztvk6qg.fsf@ambire.localdomain>
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Hi, Thien-Thi :
thanks!!
I get a lot of instances shown in *grep* buffer, just like
cd /usr/share/emacs/21.4/lisp/
egrep -nH -e '(start|call)-process' *.el /dev/null
arc-mode.el:989: (apply 'call-process
arc-mode.el:1011: (apply 'call-process
arc-mode.el:1122: (let ((exitcode (apply 'call-process
arc-mode.el:1282: (apply 'call-process
....
dired-aux.el:411:(defun dired-call-process (praogram discard &rest
arguments)
dired-aux.el:417: 'dired-call-process)))
dired-aux.el:418: (if handler (apply handler 'dired-call-process
dired-aux.el:420: (apply 'call-process program nil (not discard) nil
arguments))))
dired-aux.el:438: (apply (function dired-call-process) program nil
arguments)))
....
I try to rewrite the code like this:
(defun def-in-dir (dir regexp)
"find regexp in elisp source directory"
(interactive)
(setq dir (if (not (string-equal (substring dir -1) "/"))
(concat dir "/")
dir))
(setq default-directory dir)
(if (file-exists-p default-directory)
(progn (setq files (directory-files default-directory nil "\\.el$"))
(if files
(setq command
(concat "egrep -nH -e '" regexp "' " (stringlist-to-string
files " ")))
(setq command "grep -n -e"))
(ignore-errors (grep command))
)))
but I cant' collect all the result in the same "*grep*" buffer, everytime
only one command result can be written in this buffer, no append way?
I mean things like:
(dolist (dir load-path)
(def-in-dir dir "(start|call)-process")
On 5/29/07, Thien-Thi Nguyen <ttn@gnuvola.org> wrote:
>
> () "Yu,Gang" <wuhanyugang@gmail.com>
> () Tue, 29 May 2007 19:57:42 +0800
>
> Where can I get resources on elisp's idiomatic programming style?
>
> one way is to read a lot of elisp. this is particularly easy to do
> since emacs itself is distributed with a lot of elisp.
>
> How about these macros?? I rewrite the function like this, [...]
>
> these are ugly. i don't even know if they are correct, i could not
> force myself to read them.
>
> why don't you try this:
>
> (0) make sure your emacs is properly installed, in other words, with
> full source code (for each .elc file there should be a corresponding
> .el file in the same directory).
>
> (1) evaluate the forms:
> (require 'cl)
> (dolist (dir load-path) (ignore-errors (dired dir)))
>
> (2) in each" dired buffer, evaluate the form:
> (grep "egrep -nH -e '(call|start)-process' *.el")
>
> by "evaluate the form", i mean type `M-:' and then the form and then
> RET. for step (2) you can recall previous forms into the minibuffer
> by typing `M-p'.
>
> further exploration is up to you. have fun!
>
> thi
> _______________________________________________
> help-gnu-emacs mailing list
> help-gnu-emacs@gnu.org
> http://lists.gnu.org/mailman/listinfo/help-gnu-emacs
>
--
YuGang
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next prev parent reply other threads:[~2007-05-30 7:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.1377.1180419176.32220.help-gnu-emacs@gnu.org>
2007-05-29 8:00 ` process communication help Thien-Thi Nguyen
2007-05-29 9:08 ` Yu,Gang
2007-05-29 10:19 ` Yu,Gang
[not found] ` <mailman.1381.1180429716.32220.help-gnu-emacs@gnu.org>
2007-05-29 10:22 ` Thien-Thi Nguyen
2007-05-29 11:57 ` Yu,Gang
[not found] ` <mailman.1388.1180439874.32220.help-gnu-emacs@gnu.org>
2007-05-29 15:08 ` Thien-Thi Nguyen
2007-05-30 7:53 ` Yu,Gang [this message]
2007-05-29 6:12 Yu,Gang
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