Re: Accessing declared value of attribute in Jade

[Daniel Speck <dspeck@xxxxxxxxxxxx>]

James Clark wrote:
> 
> Daniel Speck wrote:
> 
> > I have run into a problem that I can't seem to solve. For each element
> > in the instance I need to find the declared value of each non-implied
> > attribute and if it is ENTITY or ENTITIES, I need to do further
> > processing to obtain the external identifier(s) and notation(s). The
> > problem I am having is that I can find no way to obtain information
> > about the declared value of an attribute. Can anyone tell me how?
> 
> You can't find get the declared value of an attribute, but your problem
> is just to find whether an attribute is an ENTITY or ENTITIES attribute,
> right? You can do this by looking at the entity property on the
> attribute value token node in the value of the attribute.
> 

Okay, I still can't seem to get to the "attribute value token node" in
the value
of the attribute. I created a small test SGML instance:

<!DOCTYPE test [
<!ELEMENT test o o (graphic+)>
<!ELEMENT graphic - o EMPTY>
<!ATTLIST graphic
          name ENTITY #implied
>
<!NOTATION tiff SYSTEM "tiff">
<!ENTITY foo SYSTEM "foo.tif" NDATA tiff>
]>
<graphic name=foo>

and a small DSSSL style spec:

<!doctype style-sheet PUBLIC "-//James Clark//DTD DSSSL Style
Sheet//EN">
 
(define debug
  (external-procedure "UNREGISTERED::James Clark//Procedure::debug"))
 
(element (graphic)
  (let* ((node (current-node))
         (attlist (attributes node))
         (nameatt (debug (named-node "name" attlist)))
         (nameval (debug (node-property "value" nameatt)))
         ; The next line doesn't work. Jade just says:
         ;   jade:attr.dsl:11:19:E: no value for node property
"attvaltk"
         ; I can't seem to get to the "attribute value token node" in
the
         ; value of the attribute
         (attvaltk (debug (node-property "attvaltk" nameval)))
         )
    
    (empty-sosofo)))
 
I don't know how to access the attribute value token node. Can someone
give me a pointer?

-dan

-- 
Daniel Speck                              e-mail: dspeck@xxxxxxxxxxxx
Research Engineer                          voice:     +1 301.548.7818
Thomson Technology Services Group            fax:     +1 301.527.4094
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