HyBrick Support for XPointer

[Ralph Ferris]

Previous announcements of HyBrick's support for XPointer have not detailed
which features are supported. One reason of course is that the discussion
of XPointer continues within the W3C WG. With the announcement of the most
recent version of HyBrick resulting in a significant number of downloads,
it looks like a good time to state which features are availble.

Based on the March, 1998 XPointer draft, HyBrick users can test:

 - All absolute loc terms: root(), html(), id(), origin() 
 - All relative loc terms: child(), ancestor(), descendant(), following()
                            preceding(), fsibling(), psibling()
 - The attr() loc term    

Quick Intro: psibling Example

Here's a quick introduction to using these features:

- Go to the Samples\XLink-sample directory
- Open the readme.xml file
- Inside the first xlink element, under the first locator element:
  <locator role="Hubdocument Title" href="#root().child(1,title)"/>

insert:
<locator role="Overview" href="#id(p6).psibling(1,#element)"/>

- In the first p element start tag after <title>Overview</title>,
add the attribute/value pair id="p6".

- Go to the dtd directory and open the sample.dtd file.
- Add <!ATTLIST p id ID #IMPLIED> after the <!ELEMENT p ... declaration.

Now open the readme.xml file in HyBrick. 
- Left click on the title
- Note that Role[1] Overview is now available in the Locator List. 

Selecting this role causes HyBrick to scroll to 1.2 Overview.

Best regards,

Ralph E. Ferris
Fujitsu Software Corporation

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