@9
: Make index entry (user-defined format)
The construction @9
Text@>
is used to create an index entry in a
format defined by the user. It is associated with the macro \9
, which
will be called during TeX's processing of the Index as
\9{
Text}
. The user must define \9
according to the format
\def\9#1{...}
where argument #1
is the text between @9
and @>
.
For example, to print that text in a sans serif font, say
\def\9#1{{\sf #1}}
(Note the extra level of braces to prevent the font command from propagating.)