Interesting : Selecting unique value of an attribute

[Paul Terray <terray@xxxxxxxxxxxx>]

Hi,

This is an interesting problem, I think :

If I have, let say, a lot of empty elements "index" with a "entry" 
attribute, and what I want to print is a sorted list of all the value entry 
have in the document, but without having twice the same value ?

<index entry="thing"/> blablabla <index entry="stuff"/> blabla <index 
entry="this"/>
bliblabla<index entry="thing"/> bla bli bla<index entry="this"/> bli <index 
entry="stuff"/>
<index entry="thing"/>and bla and bli <index entry="stuff"/>

and I want to get:
stuff
thing
this

Any ideas ?
--
Paul Terray - terray@xxxxxxxxxxxx
tel : 01 34 58 70 76



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