The fact that the distinction is "sometimes made"
suggests to me that this is another thing to put in the hands of the end user to
express however their tool expresses it. One can imagine options to the DITA
toolkit (or other publishing engine):
generate-page-ranges-for-index-entries-on-adjacent-pages:
Yes/no
generate-page-ranges-for-entire-topics:
Yes/no
From: Chris Wong [mailto:]
Sent: Tuesday, August 15, 2006 11:04 AM
To: JoAnn Hackos;
Grosso, Paul;
Subject: RE: [dita] Are
indexterm ranges backwards incompatible?
"A distinction is sometimes made between continued
discussion of a subject (index, for example, 34-36) and individual references
to the subject on a series of pages (34, 35, 36). " -- 17.9, Chicago Manual of
Style