2011-05-10

emacs autoload, auto-mode-alist, nxml-mode

the reason it nxml-mode is loaded when u call xml-mode is probably because there is a alias.

you can probably set it back by:

(defalias 'xml-mode 'sgml-xml-mode)

Peter wrote:
> (setq auto-mode-alist (cons '("\\.[XxRrMmDdTt][TtMmDdSsNnEe][PpAaMmLlFfSsIi]?[EePp]*[Cc]*$" . xml-mode) auto-mode-alist))

that seems to be pretty bad.

you probably want to use add-to-list instead of setq.
(add-to-list 'auto-mode-alist '("\\.js\\'" . js2-mode))

also, the file suffix
"\\.[XxRrMmDdTt][TtMmDdSsNnEe][PpAaMmLlFfSsIi]?[EePp]*[Cc]*$"
seems quite wild. What is it?

nxml-mode is a new mode for xml, written by the xml expert James Clark, who is also the original author of sgml-mode (html-mode and xml-mode are parts of sgml-mode). nxml-mode features on-the-fly xml validation. It's 10k lines of elisp.

the following might provide helpful info:

〈How to Install Emacs Packages〉
http://xahlee.org/emacs/emacs_installing_packages.html

〈New Features in Emacs 23〉
http://xahlee.org/emacs/emacs23_features.html

Xah

On May 7, 3:45 pm, Peter Flynn wrote:
> I just upgraded a machine to Ubuntu Natty, which installed Emacs 23.2,
> which appears to open XML files in nxml-mode by default. My .emacs file says
>
> > (autoload 'xml-mode "psgml" "Major mode to edit XML files." t )
> > (setq auto-mode-alist (cons '("\\.[XxRrMmDdTt][TtMmDdSsNnEe][PpAaMmLlFfSsIi]?[EePp]*[Cc]*$" . xml-mode) auto-mode-alist))
>
> which has been working fine for years. It looks as if Emacs 23.2 defines
> xml-mode to point to nxml-mode, and this is somehow superseding my .emacs.
>
> Unfortunately I still need to use psgml's xml-mode for all my XML stuff.
> Does anyone know how I disable Emacs' new behaviour?
>
> ///Peter

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