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Re: Wellformed?

Karl Waclawek wrote:
> From: "Jeff Rafter" <lists@j...>
>>Just a quick sanity check I am tying to work on some conformance and want to
>>make sure I am correct:
>>The following is wellformed:
>><!DOCTYPE doc [
>>  <!ENTITY e "<foo bar1:att='att' bar2:att='att'>test</foo>">
>><doc xmlns:bar1="http://www.example1.org"
>>     xmlns:bar2="http://www.example2.org">
>>  <child>&e;</child>
> Yes, looks OK.
>>But the following is not:
>><!DOCTYPE doc [
>>  <!ENTITY e "<foo bar1:att='att' bar2:att='att'>test</foo>">
>><doc xmlns:bar1="http://www.example.org"
>>     xmlns:bar2="http://www.example.org">
>>  <child>&e;</child>
> Duplicate attribute - not OK.

This is well-formed WRT XML 1.0 (two different attributes, bar1:att and 
bar2:att). A parser that is not "namespace-aware" certainly shouldn't 
complain about it.

If a parser is "namespace-aware", i.e., checks conformance to Namespaces 
In XML, then the document is in error, as it violates the constraint 
that no tag may have two attributes with "qualified names with the same 
local part and with prefixes which have been bound to namespace names 
that are identical." But this is not a well-formed error. The first 
version of the namespaces recommendation does not use the term 
"well-formed" at all, and while the 1.1 version does, it is not used in 
this context.

Bob Foster


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