ISSUE-20: annotation-xml and annotation encoding

annotation-xml and annotation encoding

State:: OPEN
Product:
Raised by:: Robert Miner
Opened on:: 2008-01-17
Description:: http://lists.w3.org/Archives/Public/www-math/2007Dec/0002.html

From Henri Sivonen:

"<annotation> and <annotation-xml> appear to be so vaguely defined that
I have to doubt their interoperable implementability. Have they been
implemented in applications that consumes MathML? If they have been
implemented, have they been implemented interoperably? If they are now
interoperably implemented, it would be good for the spec to define how
to consume them in the way that is interoperable."

Paul proposed:

"Applications emitting MathML should, when outputting the encoding
attribute of the annotation or annotation-xml children of the
semantics element, either:

1- use one of the names listed in this spec, if applicable
2- use a mime-type if one exists for the data
3- use a namespace URI if this URI is the namespace URI of the single
root child of an annotation-xml that is being output
4- use an self-decided character string

Note that the encoding attribute value of case 4 does not impact the
XML parsing architecture which still needs appropriate xmlns
declarations."

Henri thinks it is still too vague.
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