Ediff from command line - winXP

Ediff from command line - winXP

[Søren "Pengman" Pedersen]

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Hey all...

Im trying to invoke emacs to do a comparesion of two files under windows XP
with
emacs -f (ediff-files "file1" "file2")
from a command line, but O get the following errors in the *messages* buffer
within emacs

command-line-1: Symbol's function definition is void: \(ediff-files
Server subprocess exited

2 questions:

1. How do I make it work??

2. How would I send this command to a running emacs via gnuclientw??

thanks in advance
søren

Re: Ediff from command line - winXP

[Eli Zaretskii]

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> From: "Søren \"Pengman\" Pedersen" <pengman@pengworld.zzn.com>
> Newsgroups: gnu.emacs.help
> Date: Tue, 4 Nov 2003 03:55:47 +0100
> 
> Im trying to invoke emacs to do a comparesion of two files under windows XP
> with
> emacs -f (ediff-files "file1" "file2")
> from a command line, but O get the following errors in the *messages* buffer
> within emacs
> 
> command-line-1: Symbol's function definition is void: \(ediff-files
> Server subprocess exited

Use --eval instead of -f, and put the entire parenthesized expression
into quotes, to make it a single argument.

Re: Ediff from command line - winXP

[Stefan Reichör]

> Im trying to invoke emacs to do a comparesion of two files under windows XP
> with
> emacs -f (ediff-files "file1" "file2")
> from a command line, but O get the following errors in the *messages* buffer
> within emacs
>
> command-line-1: Symbol's function definition is void: \(ediff-files
> Server subprocess exited
>
> 2 questions:
>
> 1. How do I make it work??
>
> 2. How would I send this command to a running emacs via gnuclientw??

Hi Søren!

I use gnudoit:
gnudoit "(ediff-files \"file1\" \"file2\")"

Stefan.

Re: Ediff from command line - winXP

[Søren "Pengman" Pedersen]

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"Stefan Reichör" <stefan.reichoer@riic.at> wrote in message
news:w4dbrrs8u43.fsf@felix.riic.uni-linz.ac.at...
>
> Hi Søren!
>
> I use gnudoit:
> gnudoit "(ediff-files \"file1\" \"file2\")"
>
> Stefan.
>

Hi Stefan  - and thanks

that sort of works... And by that I means that it works - but not really in
the the way I would like to do it:

I would like to be able to use this command in a .bat-file, like:
    compare.bat:
        gnudoit "(ediff \"%1\" \"%2\")"

but that wont work since the filename have to be in either d:\\files\\file1
(double backslash) or d:/files/file1 (unix way - with single slashes)...
My questions is now:
1: Can I make the emacs system look in the current directory for the files??
2: Is there a way to make batch-files expand %1 into either of these paths
(Might be the wrong NG for this question)

Søren

Re: Ediff from command line - winXP

[Stefan Reichör]

Hallo Søren!

> that sort of works... And by that I means that it works - but not really in
> the the way I would like to do it:
>
> I would like to be able to use this command in a .bat-file, like:
>     compare.bat:
>         gnudoit "(ediff \"%1\" \"%2\")"
>
> but that wont work since the filename have to be in either d:\\files\\file1
> (double backslash) or d:/files/file1 (unix way - with single slashes)...
> My questions is now:
> 1: Can I make the emacs system look in the current directory for the files??
> 2: Is there a way to make batch-files expand %1 into either of these paths
> (Might be the wrong NG for this question)

You coud use the emacs function expand-file-name:
  expand-file-name is a built-in function.
  (expand-file-name NAME &optional DEFAULT-DIRECTORY)
  
  Convert filename NAME to absolute, and canonicalize it.
  Second arg DEFAULT-DIRECTORY is directory to start with if NAME is relative
   (does not start with slash); if DEFAULT-DIRECTORY is nil or missing,
  the current buffer's value of default-directory is used.
  File name components that are `.' are removed, and
  so are file name components followed by `..', along with the `..' itself;
  note that these simplifications are done without checking the resulting
  file names in the file system.
  An initial `~/' expands to your home directory.
  An initial `~USER/' expands to USER's home directory.
  See also the function `substitute-in-file-name'.

gnudoit "(ediff (expand-file-name \"%2\" \"%1\") (expand-file-name \"%3\" \"%1\"))"

Then you call the batch file with the full directory path (don't know
how to get this) and the two file names.

Stefan.

Re: Ediff from command line - winXP

[Søren "Pengman" Pedersen]

> You coud use the emacs function expand-file-name:
>   expand-file-name is a built-in function.
>   (expand-file-name NAME &optional DEFAULT-DIRECTORY)
>
>   Convert filename NAME to absolute, and canonicalize it.
>   Second arg DEFAULT-DIRECTORY is directory to start with if NAME is
relative
>    (does not start with slash); if DEFAULT-DIRECTORY is nil or missing,
>   the current buffer's value of default-directory is used.
>   File name components that are `.' are removed, and
>   so are file name components followed by `..', along with the `..'
itself;
>   note that these simplifications are done without checking the resulting
>   file names in the file system.
>   An initial `~/' expands to your home directory.
>   An initial `~USER/' expands to USER's home directory.
>   See also the function `substitute-in-file-name'.
>
> gnudoit "(ediff (expand-file-name \"%2\" \"%1\") (expand-file-name \"%3\"
\"%1\"))"
>
> Then you call the batch file with the full directory path (don't know
> how to get this) and the two file names.


Thanx - That war just what I needed