Selective Processing

Text can be marked up for selective processing. OLP uses a list of toggles for this. They can be set to on or off using \toggletrue{taglist} and \togglefalse{taglist}.

To include a (long) piece of text only if at least one tag in a tag list is active, surround it by

\begin{blocktag}{taglist} ... \end{blocktag}

To include a (short) piece of text depending on whether a tag is active or not, use

\printtag{taglist}{text to print}{alternative text}

The blockif environment and \printif command work as above, but instead of a simple tag list the argument may be a boolean expression in etoolbox's format. Since tags are toggles, they can be accessed using the "togl {toggle}"

\printif{not togl {math} and not togl {phil}}{some text}{}