Re: Key sequence C-c C-f C-e uses invalid prefix characters

[Dave Love]

Peter Flynn <address@hidden> writes:

> Yes. Kill it immediately and replace with psgml-mode. Make sgml-mode an
> alias for psgml-mode.

There has long been a TODO item about PSGML, but it's not that simple.
The current code isn't fully covered by copyright assignments for a
start.  (Anyone could help by chasing those.)  Also I don't remember
whether it's really in a state now where it could be included, or
whether it still needs tidying-up.

> Please. In perpetuating sgml-mode we are making the Emacs distro look
> very silly.

I think that's an overstatement.  Emacs language modes generally don't
have a proper treatment of the relevant syntax.  PSGML anyway only
supports the reference concrete syntax and you can certainly produce
invalid documents with it.