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Subject: Re: DOCBOOK: indexterm: primary is optional?
Brian Lalonde <brianiacus@yahoo.com> writes: > I notice that the indexterm element is defined as: > > indexterm ::= > (primary?, > ((secondary, > ((tertiary, > (see|seealso+)?)| > see|seealso+)?)| > see|seealso+)?) > > Why is primary optional? I think that's necessary to allow for end-of-range Indexterms, which need to be empty. For example: <indexterm class="startofrange" id="foo"> <primary>bar</primary> </indexterm> ...range of content you want to index here... <indexterm class="endofrange" startref="foo"/> -- Michael Smith, Tokyo, Japan http://sideshowbarker.net マイク The Riddle we can guess We speedily despise - Not anything is stale so long As Yesterday's surprise - --Emily Dickinson (1222) http://www.logopoeia.com/ed/
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