rgrep with (some) fixed parameters

rgrep with (some) fixed parameters

[Stefan Vollmar]

Hi,

I find the M-rgrep command very useful but need it frequently in the  
context of a particular project where all parameters remain constant  
(directory, name pattern of files to search) except the expression to  
look for. How could I create a command my-rgrep that uses some pre-set  
parameters and only asks for the search pattern (the project-specific  
parameters have already been assigned to some variables) ?

Many thanks in advance,
  Stefan
-- 
Dr. Stefan Vollmar, Dipl.-Phys.
Max-Planck-Institut für neurologische Forschung
Gleuelerstr. 50, 50931 Köln, Germany
Tel.: +49-221-4726-213  FAX +49-221-4726-298
Tel.: +49-221-478-5713  Mobile: 0160-93874279
Email: vollmar@nf.mpg.de   http://www.nf.mpg.de

Re: rgrep with (some) fixed parameters

[Peter Jones]

Stefan Vollmar <vollmar@nf.mpg.de> writes:
> I find the M-rgrep command very useful but need it frequently in the
> context of a particular project where all parameters remain constant
> (directory, name pattern of files to search) except the expression to
> look for. How could I create a command my-rgrep that uses some pre-set
> parameters and only asks for the search pattern (the project-specific
> parameters have already been assigned to some variables) ?

You just need to write a few small lines of lisp.  Read the
documentation for rgrep:

C-h f rgrep

-- 
Peter Jones, pmade inc.
http://pmade.com

Re: rgrep with (some) fixed parameters

[Stefan Vollmar]

Dear Peter,

On 06.06.2008, at 22:40, Peter Jones wrote:

> Stefan Vollmar <vollmar@nf.mpg.de> writes:
>> I find the M-rgrep command very useful but need it frequently in the
>> context of a particular project where all parameters remain constant
>> (directory, name pattern of files to search) except the expression to
>> look for. How could I create a command my-rgrep that uses some pre- 
>> set
>> parameters and only asks for the search pattern (the project-specific
>> parameters have already been assigned to some variables) ?
>
> You just need to write a few small lines of lisp.  Read the
> documentation for rgrep:
>
> C-h f rgrep


I did, but I am new to Emacs customization and might have overlooked  
something.
If I do the equivalent of a

(setq grep-find-command "find somepath \\( -path \*/.svn \\) -prune -o  
-type f \\( -iname \\*.cpp \\) -exec grep -nH -e  {} /dev/null \\;")

in my .emacs file,
C-u C-u M-x rgrep
does indeed use this pattern (and does not ask about anything else,  
and I could use a keyboard shortcut for this) - so far so good.  
However, I feel that having to look at that long-ish command every  
time I use it, is not elegant - in particular, as I need to navigate  
to the correct position when the find command is being displayed in  
the minibuffer (point should be between "-e" and "{}" to insert the  
pattern to search for). Could you help me improve on this?

Many thanks in advance,
  Stefan
-- 
Dr. Stefan Vollmar, Dipl.-Phys.
Max-Planck-Institut für neurologische Forschung
Gleuelerstr. 50, 50931 Köln, Germany
Tel.: +49-221-4726-213  FAX +49-221-4726-298
Tel.: +49-221-478-5713  Mobile: 0160-93874279
Email: vollmar@nf.mpg.de   http://www.nf.mpg.de

Re: rgrep with (some) fixed parameters

[Kevin Rodgers]

Stefan Vollmar wrote:
> If I do the equivalent of a
> 
> (setq grep-find-command "find somepath \\( -path \*/.svn \\) -prune -o 
> -type f \\( -iname \\*.cpp \\) -exec grep -nH -e  {} /dev/null \\;")
> 
> in my .emacs file,
> C-u C-u M-x rgrep
> does indeed use this pattern (and does not ask about anything else, and 
> I could use a keyboard shortcut for this) - so far so good. However, I 
> feel that having to look at that long-ish command every time I use it, 
> is not elegant - in particular, as I need to navigate to the correct 
> position when the find command is being displayed in the minibuffer 
> (point should be between "-e" and "{}" to insert the pattern to search 
> for). Could you help me improve on this?

(defun project-rgrep (regexp)
   "Run `rgrep' with REGEXP, \"*.cpp\" FILES, and \"somepath\" DIR."
   (interactive
    (progn
      (grep-compute-defaults)
      (list (grep-read-regexp))))
   (rgrep regexp "*.cpp" "somepath"))

-- 
Kevin Rodgers
Denver, Colorado, USA

Re: rgrep with (some) fixed parameters

[Stefan Vollmar]

Dear Kevin,

On 07.06.2008, at 16:23, Kevin Rodgers wrote:

> Stefan Vollmar wrote:
>> If I do the equivalent of a
>> (setq grep-find-command "find somepath \\( -path \*/.svn \\) -prune  
>> -o -type f \\( -iname \\*.cpp \\) -exec grep -nH -e  {} /dev/null \ 
>> \;")
>> in my .emacs file,
>> C-u C-u M-x rgrep
>> does indeed use this pattern (and does not ask about anything else,  
>> and I could use a keyboard shortcut for this) - so far so good.  
>> However, I feel that having to look at that long-ish command every  
>> time I use it, is not elegant - in particular, as I need to  
>> navigate to the correct position when the find command is being  
>> displayed in the minibuffer (point should be between "-e" and "{}"  
>> to insert the pattern to search for). Could you help me improve on  
>> this?
>
> (defun project-rgrep (regexp)
>  "Run `rgrep' with REGEXP, \"*.cpp\" FILES, and \"somepath\" DIR."
>  (interactive
>   (progn
>     (grep-compute-defaults)
>     (list (grep-read-regexp))))
>  (rgrep regexp "*.cpp" "somepath"))
>
> -- 
> Kevin Rodgers
> Denver, Colorado, USA


Wonderful - exactly what I had hoped for!

Thanks,
  Stefan
-- 
Dr. Stefan Vollmar, Dipl.-Phys.
Max-Planck-Institut für neurologische Forschung
Gleuelerstr. 50, 50931 Köln, Germany
Tel.: +49-221-4726-213  FAX +49-221-4726-298
Tel.: +49-221-478-5713  Mobile: 0160-93874279
Email: vollmar@nf.mpg.de   http://www.nf.mpg.de

Re: rgrep with (some) fixed parameters

[Thierry Volpiatto]

Have a look at TraverseDirectory

http://www.emacswiki.org/cgi-bin/wiki/TraverseDirectory

It doesn't do exactly what you want but it's much easier to configure
than grep/find commands.

May be i can add what you want to it.

Stefan Vollmar <vollmar@nf.mpg.de> writes:

> Hi,
>
> I find the M-rgrep command very useful but need it frequently in the
> context of a particular project where all parameters remain constant
> (directory, name pattern of files to search) except the expression to
> look for. How could I create a command my-rgrep that uses some pre-set
> parameters and only asks for the search pattern (the project-specific
> parameters have already been assigned to some variables) ?
>
> Many thanks in advance,
>  Stefan
> --
> Dr. Stefan Vollmar, Dipl.-Phys.
> Max-Planck-Institut für neurologische Forschung
> Gleuelerstr. 50, 50931 Köln, Germany
> Tel.: +49-221-4726-213  FAX +49-221-4726-298
> Tel.: +49-221-478-5713  Mobile: 0160-93874279
> Email: vollmar@nf.mpg.de   http://www.nf.mpg.de
>
>
>
>
>
>
>

-- 
A + Thierry
Pub key: http://pgp.mit.edu