[kw-pm] Specifying editing environment in source file itself

[Rolando Blanco]

As I mentioned yesterday in the meeting, there's a way to specify, in a
source file, what editing environment should be used when editing the
file. From the emacs manual:

 "A file can specify local variable values for use when you edit the
  file with Emacs.  Visiting the file checks for local variables
  specifications; it automatically makes these variables local to the
  buffer, and sets them to the values specified in the file."

To set the editing variables, the first or second line of the file must
contain the variable specifications within '-*-' and '-*-'. Example:

#!/usr/local/bin/perl
# -*- mode: cperl; tab-width: 4; indent-tabs-mode: nil -*-

This will make emacs display all tabs in the file with width 4.

...Rolando