Re: Cross-referencing
From: Tony Graham <[email protected]>
Date: Thu, 27 Mar 1997 21:42:24 -0500 (EST)
Paul Prescod writes:
> Here is the change:
>
> > (element THEOREM
> > (make paragraph
>
> (with-mode theorem (process-element-with-id))
> (process-children)))
The way I read Matthias's post, the with-mode should be on the proof,
which is the element with the IDREF attribute.
For the sample DTD and document:
----------------------------------------
<!DOCTYPE test [
<!--* TEST *-->
<!ELEMENT test - - ((proof | theorem)*) >
<!--* PROOF OF A THEOREM *-->
<!ELEMENT proof - - (#PCDATA) >
<!ATTLIST proof
of IDREF #REQUIRED >
<!--* THEOREM *-->
<!ELEMENT theorem - - (#PCDATA) >
<!ATTLIST theorem
id ID #REQUIRED >
]>
<test>
<theorem id="theorem1">The earth is flat</theorem>
<theorem id="theorem2">The stork didn't really bring me</theorem>
<proof of="theorem2">If the stork brought me, I wouldn't need this
belly button</proof>
<proof of="theorem1">Someone told me</proof>
</test>
----------------------------------------
the following Jade stylesheet appears to solve the problem:
----------------------------------------
<!doctype style-sheet PUBLIC "-//James Clark//DTD DSSSL Style Sheet//EN">
;; Sample code in response to "Cross-referencing" post by Matthias Clasen
(element TEST
(make simple-page-sequence))
(element THEOREM
(make paragraph
(make sequence
(literal
(string-append
"Theorem "
(number->string (child-number))
". "))
(process-children))))
(element PROOF
(make paragraph
(make sequence
(with-mode theorem
(process-element-with-id
(attribute-string "OF")))
(process-children))))
(mode theorem
(element THEOREM
(literal
(string-append
"Proof of "
(number->string (child-number))
": "))))
----------------------------------------
The cross-referencing problem that gets me is how, in the absence of
element-with-id, do you support an linking element such as the HTML <A>
element that has content and the content is (one end of) the link to
the referenced element. The only uses of the link flow object class
that I have seen use the same with-mode and process-element-with-id
combination as in this example, which does not preserve the content of
the linking element.
Regards,
Tony Graham
=======================================================================
Tony Graham, Consultant
Mulberry Technologies, Inc. Phone: 301-231-6931
6010 Executive Blvd., Suite 608 Fax: 301-231-6935
Rockville, MD USA 20852 e-mail: [email protected]
=======================================================================
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