Re: ruby-mode : ruby-mode-set-encoding

[Stephen J. Turnbull]

Stefan Monnier writes:

 > So you're saying that Ruby uses the same "-*- coding: <foo> -*-" as used
 > by Emacs?  That makes sense, then, thank you,

As does Python, and it is mandatory in Python for non-ASCII IIRC.  See
PEP 263 for details.  AFAIK Python modes don't try to enforce it
(yet), but they might in the future, for the same reasons that
ruby-mode does.

This should be considered equivalent to an encoding declaration in an
XML fragment.