Unparsed Entity URI: oxy_unparsed-entity-uri() Function
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This function returns the URI value of an unparsed entity name.

Syntax:
oxy_unparsed-entity-uri ( unparsedEntityName )
unparsedEntityName
The name of an unparsed entity defined in the DTD.

This function can be useful to display images that are referenced with unparsed entity names.

Example: oxy_unparsed-entity-uri Function

CSS for displaying the image in Author for an imagedata with entityref to an unparsed entity:
imagedata[entityref]{
content: oxy_url(oxy_unparsed-entity-uri(attr(entityref))); 
}