Changing sgml-validate-command

Hello list,

One short question: How do I change the value of sgml-validate-command
so that the new value is valid for all buffers?

Saying

(setq sgml-validate-command "my_validator %s %s")

in .emacs doesn't help because it is overwritten with the original value

"nsgmls -wxml -s %s %s"

in every buffer.

So I must specify it in

<!-- Keep this comment at the end of the file
Local variables:
sgml-validate-command: "my_validator %s %s"
-->

for every file?

Here I have the problem that by specifying

<!-- Keep this comment at the end of the file
Local variables:
sgml-validate-command: "xmllint --noout --valid"
-->

the validator itself complains about the string "--" in a comment! Is 
there a workaround for that?

Greetings and thank you very much for your help and for this wonderful 
Emacs mode,

Joachim



-- 
Joachim Ziegler                       Stuhlsatzenhausweg 85
Max-Planck-Institut für Informatik    66123 Saarbrücken, Germany
Email: [email protected]          Tel.: (+49) 0681 9325-127



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