Subject: Re: [jats-list] JATS v1.1 request: Support for MathML 3.x From: Debbie Lapeyre <dalapeyre@xxxxxxxxxxxxxxxx> Date: Wed, 19 Dec 2012 13:41:52 -0500 |
If you are adding MathML 3.0 to the XSD Schema version of JATS, just replace the modules and all is golden.
If you are using a DTD version of JATS, things are SLIGHTLY more complicated.
1) You replace all the MathML 2.0 modules with MathML 3.0 modules
2) You replace all calls to MathML modules with the new names in the catalog and modules files.
3) However, there is then a glitch. The problem is the way DTDs handle parameter entities; tThe first to be encountered is the one to take effect. JATS customization relies on this mechanism, but in this instance it bites us.
MathML 2 had no parameter entity NAMES in common with JATS. MathML 3 has one, it uses %product.class; - and so does JATS, as defined in JATS-default-classes.ent.
The eaisest way around this (and the one approved by two members of the MathML Workign Group) is to hack the MathML directly. After all, parameter entities have no real impact on the tag set.
I changed the %product.class; name in the MathML 3.0 DTD to %mml-product.class;.
There is a request in that JATS consider modifying its PE names to remove this problem. It is a silent failure problem with no parsing warning, since this is how parameter entities are intended to function.
-- ====================================================================== Deborah Aleyne Lapeyre mailto:dalapeyre@xxxxxxxxxxxxxxxx Mulberry Technologies, Inc. http://www.mulberrytech.com 17 West Jefferson Street Direct Phone: 301/315-9633 Suite 207 Phone: 301/315-9631 Rockville, MD 20850 Fax: 301/315-8285 ---------------------------------------------------------------------- Mulberry Technologies: A Consultancy Specializing in XML, XSLT, & SGML ======================================================================
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