DocBook 5.1: The Definitive Guide  (Version 1.5.3 for DocBook 5.1)

tertiary

tertiary — A tertiary word or phrase in an index term.

Synopsis

tertiary ::= [-]

Attributes

Common attributes and common linking attributes.

Additional attributes:

  • sortas

Description

A tertiary element contains a third-level word or phrase in an indexterm. The text of a tertiary term is less significant than the primary and secondary terms for sorting and display purposes.

DocBook does not define any additional levels. You cannot use indexterms to construct indexes with more than three levels without extending the schema.

In indexterms, you can only have one primary, secondary, and tertiary term. If you want to index multiple tertiary terms for the same primary and secondary, you must repeat the primary and secondary in another indexterm. You cannot place several tertiarys in the same primary.

Processing expectations

Suppressed. This element provides data for processing but is not rendered in the primary flow of text.

Attributes

Common attributes and common linking attributes.

sortas

Specifies the string by which the term is to be sorted; if unspecified, the term content is used

Parents

These elements contain tertiary: indexterm (db.indexterm.singular), indexterm (db.indexterm.startofrange).