indexterm proposed wording

["Grosso, Paul" <pgrosso@ptc.com>]

Proposed additional wording for indexterm.

> -----Original Message-----
> From: Grosso, Paul [mailto:pgrosso@ptc.com] 
> Sent: Tuesday, 2006 September 26 11:37
> To: dita@lists.oasis-open.org
> Subject: RE: [dita] review of index* elements 

> > indexterm
> > ---------

> Issue:  What if an an indexterm contains both an index-see 
> and an index-see-also.
> 
> Proposed resolution:
> 
> It is an error if an indexterm contains both an index-see 
> and an index-see-also.  An implementation may (but need 
> not) give an error message, and may (but need not) recover 
> by treating the index-see as an index-see-also (in which 
> case the page number where the index-see-also occurred will
> also appear in the index entry).
> 
> ACTION to Paul:  Provide suggested wording.

Add as the final para of the first section:

It is an error if an indexterm containing no indexterm children 
contains both an index-see and an index-see-also.  (Note:
index-see and index-see-also elements within indexterms that
do contain indexterm children are ignored.)  In the case of
this error condition, an implementation may (but need 
not) give an error message, and may (but need not) recover 
by treating all such index-see elements as index-see-also 
elements.