Re: postscript printing in emacs

[Peter Dyballa]

Am 21.06.2013 um 18:30 schrieb Rami A:

> But when trying to print I get this message:
> Searching for program: No such file or directory, mp | lp
> 
> It is possible that ps-lpr-command expects the path of the printing program, 
> not a command.

The documentation says:

        Documentation:
        Name of program for printing a PostScript file.
        
        On MS-DOS and MS-Windows systems, if the value is an empty string then 
Emacs
        will write directly to the printer port named by `ps-printer-name'.  The
        programs `print' and `nprint' (the standard print programs on Windows 
NT and
        Novell Netware respectively) are handled specially, using 
`ps-printer-name' as
        the destination for output; any other program is treated like `lpr' 
except that
        an explicit filename is given as the last argument.

This is in accordance with the variable's name. It appears in ps-print.el. Here 
is written in a comment:

        `ps-lpr-command' must name a program that does not format the files it 
prints.

Because the ps-print and ps-spool commands already produce PostScript. So you 
would have to use a simple print command. But lpr-command either does not allow 
to use a pipe. GNU Emacs seems to search for an executable file name with 
SPACEs and VERTICAL BAR (|). AFAIR mp allows to specify with -D or -P a printer 
queue to which its output is being sent. Why can't you use mp without ' | lpr'? 
And why aren't you experimenting in GNU Emacs with its own customisation 
interface? It allows to apply new settings just for this session – and to 
revert them! If a combination of settings finally works well you can save them, 
from each of the open *customisation* buffers, into your init file.

--
Greetings

  Pete

Real Time, adj.:
        Here and now, as opposed to fake time, which only occurs there and then.