\usepackage{alltt}
\newenvironment{ocamldoccode}{\begin{alltt}}{\end{alltt}}
\newenvironment{ocamldocdescription}{\begin{quote}}{\end{quote}}
\newenvironment{ocamldoccomment}{\begin{quote}}{\end{quote}}
\newcommand\textbar{|}
\newcommand\textbackslash{\begin{rawhtml}\\end{rawhtml}}
\newcommand\textasciicircum{\^{}}
\newcommand\sharp{#}