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Re: Grep

From: Alexandre Brillant
Subject: Re: Grep
Date: Thu, 21 Feb 2002 19:45:39 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.6) Gecko/20011120

fabrice bauzac wrote:

On Wed, Feb 20, 2002 at 07:41:19PM +0100, Alexandre Brillant wrote:

Is there a way to force the grep command on the current buffer ?

Maybe you can try

C-x h M-| grep myregex RET

You can find documentation about M-! and M-| in the texinfo doc,
(elisp)Single Shell.

Thank you for your response, however this solution doesn't work.

I catch a look at the 'compile.el' package including the grep support :

It seems that the 'call-process' with 'nil' on the second parameter will invoke a new buffer... The only think
to do is a :

(call-process grep-program t nil nil
                      "-e" "foo" null-device)
              (error nil))

This is the same problem for other command, if someone knows who to contact, it will be
interesting to correct this problem through a new emacs option...

Here the part of the originale compile.el :

(defun grep-compute-defaults ()
 (unless grep-command
   (setq grep-command
     (if (equal (condition-case nil ; in case "grep" isn't in exec-path
            (call-process grep-program nil nil nil
                      "-e" "foo" null-device)
              (error nil))
         (format "%s -n -e " grep-program)
       (format "%s -n " grep-program))))

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