Juergen Zimmer: Re: [om] A Proposal for extending OpenMath with XML annotations

[Andrew Solomon]

I think there's a problem with OMSTR solution:

What if the "data" you want to put in OMSTR is not MathML
but XML encoded "OMyGod" - 
a subtle variant of OM which contains the OMSTR element.
Then it will  make life really difficult for the OM-XML parser
which can't then just look for a closing OMSTR, but must
actually parse the content. And what if the data isn't XML at all,
but some bizarre thing where </OMSTR> could appear through sheer bad luck?


a) Can this be solved by a sensible use of namespaces?
<om:OMATTR> 
	<mml:mrow> 
	<mml:mo>sin</mml:mo> &ApplyFunction; <mml:mn>1</mml:mn> 
	</mml:mrow>
</om:OMATTR>


b) Alternatively, can OM Objects refer to names of things outside 
themselves, but in the same XML document?

Some XML document might contain a preamble 

<MyXMLBinding>
<name>
x
</name>
<mathml>
... mathml object here
</mathml>
</MyXMLBinding>

... then the OM object

<om:OMOBJ>

<om:OMATTR>
  <om:OMA>
    <om:OMS cd="extrefs" name="ref">
    <om:OMSTR>x</om:OMSTR>
  </om:OMA>
</om:OMATTR>

</om:OMOBJ>



Andrew



On Fri, Aug 16, 2002 at 03:16:22PM +0200, Juergen Zimmer wrote:
> 
> Hi all,
> 
> > Mmmm, well, I would say it still allows tools to manipulate the
> > XML data only with one level of indirection. The MathML is just
> > data from the OpenMath perspective and that way it keeps the
> 
> Exactly! And I would guess that the annotation you mentioned 
> 
> >           <OMSTR> <mrow> <mo>sin</mo> &ApplyFunction; <mn>1</mn> </mrow>
> 
> would probably be used for renering purposes, i.e. an application wouldn't
> even have to parse the MathML-XML but could simply insert the string in a
> document for a rendering engine (e.g. Mozilla).
> 
> I fully support Manfred's idea of using the <OMSTR> element for that
> purpose.
> 
> cheers
>   Jürgen 
> 
> 
> 
> 
> 
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> 
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