parser for xml-data?
Tim Bray
tbray at textuality.com
Sun May 24 13:31:29 BST 1998
At 08:09 PM 5/23/98 -0700, Charles Frankston wrote:
>> Note that the XML declaration has a required order of pseudo-attribute
>> occurrence. It would be best if the XML-family of language were
>> consistent.
>>
>> [23] XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>'
>>
>
>Yes, this is a good point about the XML Decl. Does Tim Bray care to comment
>here?
Yes. At the moment, the XML declaration has a required order in which
the bits must appear. However, the namespace declaration, which looks
(on the face of it) remarkably similar, does not. Yes, I find this
irritating. My vote was for the namespace declarations to be strictly
ordered for consistency with the XML declaration, but I lost. My
opinion is that
1. Because the XML spec BNF doesn't have the &-connector, it's hard and
inelegant to specify required-but-unordered; so I didn't bother for
the XML declaration, and neither Michael nor anyone else caught me
on this.
2. My WG colleagues *did* catch this in the namespace declaration, and
were more irritated by the strict ordering than by the inconsistency;
this leads to the current situation.
-Tim
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