Re: Using Emacs as PS converter

[Eli Zaretskii <eliz@gnu.org>]

> Date: Mon, 01 Dec 2014 16:05:28 +0100
> From: Angelo Graziosi <angelo.graziosi@alice.it>
> 
> Out of curiosity, I wonder if one can use Emacs as a postscript 
> converter.. Suppose I have a file foo.txt. If I visit it and the
> 
>    M-x ps-spool-buffer-with-faces
> 
> the result is in a *PostScript* buffer that I can save as foo.ps.
> 
> But what if one wants use that from command line o shell script?
> 
> I have tried this:
> 
> $ emacs --batch foo.txt -f ps-spool-buffer-with-faces --visit 
> \*PostScript\* -f save-buffer
> 
> Formatting...  0%
> Collecting face information...
> Formatting...100%
> Formatting...done
> Wrote /home/angelo/work/*PostScript*
> 
> 
> but '*PostScript*' is saved empty...
> 
> $ ls -lrt
> ...
> ... 0  1 dic 15.54 *PostScript*
> 
> 
> Where is the error?
> 
> TIA,
>   Angelo.
> 
> 


I don't know, but this minor variation works for me:

  emacs -batch foo.c -f ps-spool-buffer-with-faces --eval "(progn (switch-to-buffer \"*PostScript*\") (write-file \"foo.ps\"))"