This is an alpha version of this book.
indexentry ::= (primaryie, (seeie|seealsoie)*, (secondaryie, (seeie|seealsoie|tertiaryie)*)*)
An IndexEntry wraps all of the index terms associated with a particular primary index term. This includes an arbitrary list of secondary and tertiary elements as well as See and SeeAlso elements.
Formatted as a displayed block. A rendered index usually places secondary items under primary items and tertiary items under secondary.
The following elements occur in indexentry: primaryie, secondaryie, seealsoie, seeie, tertiaryie.
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