batch mode

batch mode

[Sebastian Tennant]

Hi all,

By default Emacs in batch mode sends 'message's to stderr.

Is it possible to put a directive in the file loaded with the '-l'
switch, that tells Emacs to send 'message's to stdout instead?

Sebastian

Re: batch mode

[Peter Dyballa]

Am 02.03.2008 um 19:50 schrieb Sebastian Tennant:

> Is it possible to put a directive in the file loaded with the '-l'
> switch, that tells Emacs to send 'message's to stdout instead?


Do you that in shell it's possible unite stderr and stdout?

--
Greetings

   Pete

There is no national science just as there is no national  
multiplication table; what is national is no longer science.
				– Anton Checov

Re: batch mode

[Pascal Bourguignon]

Sebastian Tennant <sebyte@smolny.plus.com> writes:

> Hi all,
>
> By default Emacs in batch mode sends 'message's to stderr.
>
> Is it possible to put a directive in the file loaded with the '-l'
> switch, that tells Emacs to send 'message's to stdout instead?

Why use message if message doesn't do what you want?  Use print!
(and princ, terpri, etc).

-- 
__Pascal Bourguignon__                     http://www.informatimago.com/

READ THIS BEFORE OPENING PACKAGE: According to certain suggested
versions of the Grand Unified Theory, the primary particles
constituting this product may decay to nothingness within the next
four hundred million years.

Re: batch mode

[Sebastian Tennant]

Quoth Pascal Bourguignon <pjb@informatimago.com>:
> Sebastian Tennant <sebyte@smolny.plus.com> writes:
>
>> Hi all,
>>
>> By default Emacs in batch mode sends 'message's to stderr.
>>
>> Is it possible to put a directive in the file loaded with the '-l'
>> switch, that tells Emacs to send 'message's to stdout instead?
>
> Why use message if message doesn't do what you want?  Use print!
> (and princ, terpri, etc).

It's not my code, and there are a lot of messages in there!

Peter, of course 2>&1 works in a shell, but my guile script calls emacs
directly to avoid the overhead of the shell.

It turns out, guile has good port redirection routines and I'm able to
route stderr programmatically within the script.

Thanks to you both.

Sebastian

Re: batch mode

[Brendan Halpin]

Can I hijack the thread to ask if there is a way of suppressing the
"Loading" and related start-up messages when using the
#!/usr/bin/emacs --script
convention?

At present this:
-------------------------------------------------------------------
#!/usr/bin/emacs --script
(princ "Hello World!\n")
-------------------------------------------------------------------

generates the following output:
-------------------------------------------------------------------
brendan@annacotty:/tmp$ ./hw.el 
Loading 00debian-vars...
Loading /etc/emacs-snapshot/site-start.d/50auctex.el (source)...
Loading /usr/share/emacs/23.0.50/site-lisp/auctex.el (source)...
Loading /usr/share/emacs/23.0.50/site-lisp/preview-latex.el (source)...
Loading /etc/emacs/site-start.d/50dictionaries-common.el (source)...
Skipping dictionaries-common setup for emacs-snapshot
Loading /etc/emacs/site-start.d/50gcl.el (source)...
Loading /etc/emacs/site-start.d/50slime.el (source)...
Loading /usr/share/emacs-snapshot/site-lisp/slime/slime-autoloads...
Hello World!
-------------------------------------------------------------------

Adding options like -q and --no-site-file to the bang line don't seem to
have any effect, and this makes Emacs unattractive for small scripts. 

Brendan
-- 
Brendan Halpin,  Department of Sociology,  University of Limerick,  Ireland
Tel: w +353-61-213147 f +353-61-202569 h +353-61-338562; Room F2-025 x 3147
mailto:brendan.halpin@ul.ie  http://www.ul.ie/sociology/brendan.halpin.html