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printing configuration per file


From: Tomas Hlavaty
Subject: printing configuration per file
Date: Sun, 24 Jan 2021 02:11:20 +0100

Hi,

I would like to specify printing configuration per file instead of
globally.

Example: I have a file /foo/a/a.txt and a file /foo/b/b.txt.  When I
open a.txt, the variables ps-font-size, ps-print-header and
ps-print-footer should have specific values.  When I open b.txt, those
variables should have different values.  I do not want to set those
variables globaly.

What are the ways to achieve that?

I tried storing the files in different directories and using
.dir-locals.el but that did not work (did not set the values + I want to
set the values for a specific file, not for all files in the directory
or per mode):

--- .dir-locals.el file
;;; Directory Local Variables
;;; For more information see (info "(emacs) Directory Variables")

((nil . ((ps-font-size . 10)
         (ps-print-header . nil)
         (ps-print-footer . nil))))
--- eof

Ideally, it should also work without having to store the files in
different directories.

It might work like this:

--- a.txt
This is a document to be printed.

Local variables:
ps-font-size: (9 . 11)
End:
--- eof

But the I need to exclude the Local declaration from being printed.  Is
there an existing way (a function) to get the buffer contents without
Local variables section already?  Or do I need to remove the Local
variables configuration from output myself using my own heuristic?

Is there a way to set local variables not per directory like
.dir-locals.el does but per file and still using different file?
E.g. for /foo/a.txt using /foo/a.txt.file-locals.el?

Is there a gui for setting buffer local variables, e.g. something like
customize but writing the values to Local variables section or
.dir-locals.el file?

Is there a way to see buffer local variables?  There is
(buffer-local-variables) but if I evaluate that in the buffer, *Message*
buffer does not contain readable print of that value.  I do not want to
write a program for this.

Thanks,

Tomas



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