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Re: Ambiguity in XML spec

• From: "Brown, Bryan" <bryanb@u...>
• To: "'xml-dev@x...'" <xml-dev@x...>
• Date: Thu, 18 May 2000 12:09:10 -0700

>> So after reading 'PUBLIC' you have no idea if you are looking for "S 
>>S PubidLiteral S SystemLiteral " or just "S PubidLiteral" 
>> 
>>What am i missing ? 
> Nothing, but what's the problem? It's ambiguous (in the content model 
> sense of non-deterministic), but the productions in the spec are not 
> intended to correspond that directly to an implementation. 

Ok, well I have a parser that i wrote from scratch, and of the 83 or so
productions this is the only one my parser has a problem with. If when a
NotationDecl has a publicID the systemliteral is optional (which is what the
current spec implies) then the spec should have had productions like the
following
[83] NotationDecl ::= '<!NOTATION' S Name S (SystemID | PublicID )
[84] PublicID ::= 'PUBLIC' S PubicLiteral (S SystemLiteral)?
[85] SystemID ::= 'SYSTEM' S SystemLiteral	
Or
[[83] NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID )
[84] PublicID ::= 'PUBLICID' S PubicLiteral
- Bryan
	



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