Re: [docbook-apps] Adding a new attribute to EQUATION element

Thanks Bob!

 

That cleared it up and now it validates

 

Dean

 

In a message dated 3/10/2009 11:26:34 A.M. Pacific Daylight Time, 
 writes:

  
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

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