      \fitem{dump}(\emph{file}:string, \emph{variable}$_1$,
      ... \emph{variable}$_p$) is a special form (the \emph{variable}$_i$
      arguments are restricted to be variables). Calling this special form
      store the values of the variables in the file whose path is
      \emph{file}.

      The stored value can be restored using the function
      \atvar{loadvar}.

      The dump file can be produced during one program execution and can
      be read in another program execution. This mechanism can be used to
      manage \emph{presets}\index{preset}.
      %% 
      See also functions \atvar{savevalue} and
      \atvar{loadvalue}.


      Note that this special form expands into the ordinary function
      \atvar{dumpvar}. The same comments apply.  This function is a
      special form, so it cannot be curryfied.

      The dump file produced by \atvar{dump} is in a human readable
      format and corresponds to a fragment of the \Antescofo grammar.

      

      %%% -------------------------------------------------------

