How do I do _THIS_ with emacsclient?

How do I do _THIS_ with emacsclient?

[David Kastrup]

Hi, I have the following problem: I try using something like
${EDITOR} --eval "(ediff-files (pop command-line-args-left) \
  (pop command-line-args-left))" "file1" "file2"

and when ${EDITOR} is equal to emacsclient, this fails pretty badly:
command-line-args-left is nil, and Emacs tried to execute file1 and
file2, leading to undefined variable complaints.

This behavior clearly is dissatisfactory.  Any idea what I could write
to have this more or less work with emacsclient without breaking when
using Emacs?

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum

Re: How do I do _THIS_ with emacsclient?

[Ehud Karni]

On Sun, 29 Jul 2007 19:53:05, David Kastrup wrote:
>
>
> Hi, I have the following problem: I try using something like
> ${EDITOR} --eval "(ediff-files (pop command-line-args-left) \
>   (pop command-line-args-left))" "file1" "file2"
>
> and when ${EDITOR} is equal to emacsclient, this fails pretty badly:
> command-line-args-left is nil, and Emacs tried to execute file1 and
> file2, leading to undefined variable complaints.

I don't know what to do about the argmunents not available with
`command-line-args-left' but why not use a simpler command like:
    ${EDITOR} --eval '(ediff-files "file1" "file2")'

Ehud.


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Re: How do I do _THIS_ with emacsclient?

[David Kastrup]

"Ehud Karni" <ehud@unix.mvs.co.il> writes:

> On Sun, 29 Jul 2007 19:53:05, David Kastrup wrote:
>>
>>
>> Hi, I have the following problem: I try using something like
>> ${EDITOR} --eval "(ediff-files (pop command-line-args-left) \
>>   (pop command-line-args-left))" "file1" "file2"
>>
>> and when ${EDITOR} is equal to emacsclient, this fails pretty badly:
>> command-line-args-left is nil, and Emacs tried to execute file1 and
>> file2, leading to undefined variable complaints.
>
> I don't know what to do about the argmunents not available with
> `command-line-args-left' but why not use a simpler command like:
>     ${EDITOR} --eval '(ediff-files "file1" "file2")'

Because file1 and file2 may not be properly quoted for use in Lisp
strings.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum

Re: How do I do _THIS_ with emacsclient?

[Ehud Karni]

On Sun, 29 Jul 2007 21:56:27, David Kastrup wrote:
>
> "Ehud Karni" <ehud@unix.mvs.co.il> writes:
>
> > On Sun, 29 Jul 2007 19:53:05, David Kastrup wrote:
> >>
> >>
> >> Hi, I have the following problem: I try using something like
> >> ${EDITOR} --eval "(ediff-files (pop command-line-args-left) \
> >>   (pop command-line-args-left))" "file1" "file2"
> >>
> >> and when ${EDITOR} is equal to emacsclient, this fails pretty badly:
> >> command-line-args-left is nil, and Emacs tried to execute file1 and
> >> file2, leading to undefined variable complaints.
> >
> > I don't know what to do about the arguments not available with
> > `command-line-args-left' but why not use a simpler command like:
> >     ${EDITOR} --eval '(ediff-files "file1" "file2")'
>
> Because file1 and file2 may not be properly quoted for use in Lisp
> strings.

Is it a real problem or a principal one ?
For real life you can always do:
    ln -s "file1" /tmp/file1_$$
    ln -s "file2" /tmp/file2_$$
    ${EDITOR} --eval '(ediff-files "'/tmp/file1_$$'" "'/tmp/file2_$$'")'
    rm -f /tmp/file1_$$ /tmp/file2_$$

Ehud.


--
 Ehud Karni           Tel: +972-3-7966-561  /"\
 Mivtach - Simon      Fax: +972-3-7966-667  \ /  ASCII Ribbon Campaign
 Insurance agencies   (USA) voice mail and   X   Against   HTML   Mail
 http://www.mvs.co.il  FAX:  1-815-5509341  / \
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