Description
Tertiary 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 DTD.
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.
Future Changes
The InterfaceDefinition element will be discarded in DocBook V4.0. It will no longer be available in the content model of this element.
Children
The following elements occur in Tertiary: Abbrev, Acronym, Action, Anchor, Application, Author, AuthorInitials, Citation, CiteRefEntry, CiteTitle, ClassName, Command, Comment, ComputerOutput, Constant, CorpAuthor, Database, Email, Emphasis, EnVar, ErrorCode, ErrorName, ErrorType, Filename, FirstTerm, Footnote, FootnoteRef, ForeignPhrase, Function, GlossTerm, GUIButton, GUIIcon, GUILabel, GUIMenu, GUIMenuItem, GUISubmenu, Hardware, InlineGraphic, InlineMediaObject, Interface, InterfaceDefinition, KeyCap, KeyCode, KeyCombo, KeySym, Link, Literal, Markup, MediaLabel, MenuChoice, ModeSpec, MouseButton, MsgText, OLink, Option, Optional, OtherCredit, Parameter, Phrase, ProductName, ProductNumber, Prompt, Property, Quote, Replaceable, ReturnValue, RevHistory, SGMLTag, StructField, StructName, Subscript, Superscript, Symbol, SystemItem, Token, Trademark, Type, ULink, UserInput, VarName, WordAsWord, XRef.
In some contexts, the following elements are allowed anywhere: BeginPage, IndexTerm.
In some contexts, the following elements are excluded: Acronym, Footnote.