Hi Dean,
If you are going to be customizing the DTD, I would highly recommend
browsing the LiveDTD version so you can see how and where parameter entities are
defined:
http://www.sagehill.net/livedtd/docbook45/
If you click on "equation" in the left column, you find the declarations
for the equation element in the DTD. For attributes, you want to look at
the <!ATTLIST equation ...> part. In there, you will see a
%local.equation.attrib; parameter entity, and when you click on that you will
see it is declared as empty. That is a placeholder for any new
attributes you care to add to the DTD All elements have such a PE for
customization. It can be declared as:
<!ENTITY % local.equation.attrib "width CDATA
#IMPLIED">
You just need to declare your version before the stock version of that
parameter entity.
Bob Stayton
Sagehill Enterprises
----- Original Message -----
From:
To: ;
Sent: Tuesday, March 10, 2009 10:56
AM
Subject: Re: [docbook-apps] Adding a new
attribute to EQUATION element
Bob,
I'm using the 4.5 DTD with a mod file. I have modified the
equation.content entry to allow mml:math and xi:include items
<!ENTITY %
equation.content
"(alt?,
(graphic+|mediaobject+|mathphrase+|%mathml-math;+|xi:include))">
but I can't figure out how to add a simple attribute ;-) I have tried to
use the info out of the latest TDG but it looks like even that is not up to
date and there are some wrapping for modules that happen in the new dbpoolx
file that I don't understand yet.
There must be a simple way......
Dean
In a message dated 3/10/2009 10:14:44 A.M. Pacific Daylight Time,
writes:
Hi Dean,
Are you using a DTD or RNG schema? And when you
mention customization layer, I presume you mean the customization of the
schema?
Bob Stayton
Sagehill Enterprises
----- Original Message -----
From:
To:
Sent: Tuesday, March 10, 2009 12:10
AM
Subject: [docbook-apps] Adding a new
attribute to EQUATION element
Hello everyone,
I have wrestled my stylesheets to accept <equation
align="center"> when I am using MathML. All of this works as I would
like except validation in the editor.
How do I add the "align" attribute for the EQUATION element to
my customization layer so that my XML validates.
Regards,
Dean Nelson
"Faith is acting
before feeling." - Rick Warren
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