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Re: [SML] Preliminary EBNF v0.2

  • From: Joe Lapp <jlapp@w...>
  • To: xml-dev@i...
  • Date: Mon, 29 Nov 1999 15:57:42 -0500

Re: [SML] Preliminary EBNF v0.2
At 03:59 AM 11/28/99 -0800, Don Park wrote:
>data ::= (element | CharData | CharCode)*
>element ::= StartTag data EndTag | EmptyTag

I assume that a document is an instance of element, right?  (Please say yes.)

>StartTag ::= '<' Name '>'
>EndTag ::= '</' Name '>'
>EmptyTag ::= '<' Name '/>'
>Name ::= NameChar+

We still need to be XML conforming, so we need a different first character.
 John Cowan has convinced me that subsetting Unicode for CharData doesn't
have to be a huge performance issue.  Let's not allow chars that XML does
not allow.

We should use the character productions defined in XML.  A bit more of a
headache for programmers, but nothing tough.

>NameChar ::= [^<>&] - (#x20 | #x9 | #xD | #xA)
>CharData ::= [^<>&]*
>CharCode ::= '&' ('#x' [0-9A-F]+ | 'lt' | 'gt' | 'amp') ';'

Joe Lapp                     (Looking for some good people to
Senior Engineer               help create XML technologies that
http://www.webMethods.com     connect businesses to businesses
jlapp@w...          over the web.)

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