[OS X TeX] conditional text

[Alain Schremmer]

I would like to have multi-paragraphs optional text in a file, namely 
text that I can comment/uncomment with a \boolean{Optional} at the top 
of the file.

I thought of creating a newenvironment like

    \newenvironment{OptionalText}%
    {\ifthenelse{\boolean{Optional}}{}{\renewcommand{\par}{\%}}
    {\ifthenelse{\boolean{Optional}}{}{\par}}

but I have not been able to carry this out.

Is it at all doable since this is essentially amounts to what folding is 
about?

Hopeful regards
--schremmer



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