Use the <var> element (variable) as shown:
<var> text <\var>
Or, use the short form:
<var |text |
%% text %%
Variables are displayed using an italic font.
This command-line syntax uses a variable to show that the user supplies a file name.
It produces this output:
Variables can appear within computer text or computer example listings. This example specifies volume as a variable part of a file name:
The HelpTag software takes your "%%volume%%.htg" file as input.
The HelpTag software takes your volume.htg file as input.
In both of these examples, the %% pairs could have been entered with the long form (<var>...<\var>) or the short form (<var|...|).