// vim: set filetype=pp2html:
=U
\X{mode=index_only}
The \B<\\U> tag marks text to be formatted as \I<\Bnderligned>.
\B
\\U
\B
No options are allowed. Using options will cause a syntax error.
\B
The body is the string to be formatted.
\B
This is very \\U.
produces
This is very \U.
\B
\B<\\SUB>, \B<\\SUP>, \B<\\F>