DOCBOOK: Few comments about MathML module for DocBook

[Jirka Kosek <jirka at kosek dot cz>]

Hi,

I have tried to use MathML V1.0beta3 from OASIS site. In fact I must do
some additional customizations to successfully cross DocBook and MathML
DTD. My dbmathml.dtd now looks like this:

<!ENTITY % mathml-colon               ':'>
<!ENTITY % mathml-prefix              'mml'>

<!ENTITY % equation.content "(alt?, (graphic+|mediaobject+|mml:math))">

<!ENTITY % docbook PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
                  
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
%docbook;

<!-- !!!!!!!START OF ADDITION!!!!!!! -->

<!ENTITY % NS.prefixed     "INCLUDE">
<!ENTITY % MATHML.prefix   "%mathml-prefix;">
<!ENTITY % NamespaceDecl.attrib "xmlns:mml CDATA #FIXED
'http://www.w3.org/1998/Math/MathML'">

<!-- !!!!!!!END OF ADDITION!!!!!!!! -->

<!-- You must also include the MathML DTD -->
<!ENTITY % mathml PUBLIC "-//W3C//DTD MathML 2.0//EN"
                  "http://www.w3.org/TR/MathML2/dtd/mathml2.dtd">
%mathml;

This approach works well and documents can be validated by common XML
parser. It is even not necessary to declare MathML namespace because all
MathML elements get this information from #FIXED attribute. This is
useful because most XML validating parsers are confused by using
xmlns:mml on DocBook elements because this is not attribute declared in
DocBook DTD.

What is your experience with MathML module? Am I doing something wrong,
or is current DocBook MathML support not so correct.

Jirka

-----------------------------------------------------------------
  Jirka Kosek  	                     
  e-mail: jirka@kosek.cz
  http://www.kosek.cz