XML Schema and BNF

Dear All,

I am designing an XML-based language. I am using the XML Schema to
define the syntax of the language.

I would like to know whether the XML Schema could be used as a
substitution or an alternative to the BNF or not?
Could you tell me references addressing that?


Thanks you in advance for your help.
I am looking forward to your reply


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Regards,

Essam Mansour