Re: [docbook-apps] Re: olink element question

Yes, setting xml:id="filenames" in the chapter element is fine.  I'm not 
sure what you mean by "without any additional declaration", though.  All 
elements in DocBook 5 allow an xml:id attribute, so putting one on the 
chapter element does not require any further declaration.  You can put an 
xml:id on every element, and link to every element if you like.

Perhaps the phrase "document id" is confusing you here.  Like I said, it is 
not an official term, and it is not necessary to refer to an id with it. 
When you have <chapter xml:id="filenames">, the xml:id is associated with 
the element.  That chapter element could be in its own file, or it could be 
included into a book, but the xml:id has the same status: an ID attribute on 
an element.   So would it help to just drop the phrase "document id" and 
just refer to an id on an element?

Bob Stayton
Sagehill Enterprises



----- Original Message ----- 
From: "Karen Schneider" <>
To: "Bob Stayton" <>
Cc: "docbook-apps" <>
Sent: Monday, September 07, 2009 9:33 AM
Subject: Re: [docbook-apps] Re: olink element question


> I think you are calling the id attribute of the root element of each file
> the "document id", but that isn't an official XML term. It just means the
> id of the document's root element.

Ok -- I'm not as clear on this as I thought.

In the following, can the xml:id function as the document id (without
any additional declaration)? And therefore if this is in a book called
book1 (xml:id book1), can it link to a file called graphics.xml
(xml:id graphics) in book2 (<olink targetdoc="Book2"
targetptr="graphics">use a graphic</olink>?

<?xml version='1.0' encoding='UTF-8'?>
<chapter xmlns="http://docbook.org/ns/docbook"
xmlns:xi="http://www.w3.org/2001/XInclude"
  xmlns:xl="http://www.w3.org/1999/xlink" version="5.0" xml:id="filenames">
  <title>File Structure and Filenames</title>
 ...

>
> Perhaps "assembly" is a better term for the larger document that is
> assembled for release as a unit. The targetdoc name is are associated with
> such an assembly when dealing with modular content.

That would help disambiguate things... methinks!



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