🚀 go-pugleaf

I need some help getting \verbatimfiles to use a redefined verbatim
environment.

More specifically, someone recently sent me some LaTeX code to make
the verbatim environment automatically add a continuation character to long
lines and indent their continuation on the next line.

This works fine on its own via:
\begin{verbatim}
--------------very long line here gets automatically wrapped-----------------
\end{verbatim

But the line wrapping doesn't happen when called via:
\verbatimfiles{filename}

I have tried modifying verbatimfiles.sty in quasi-random ways, to no avail.

Can anyone offer advice?
Here's the file which modifies the verbatim environment:
%newverbatim.sty
{\catcode`\^^M=13
% Redefine verbatim environment:
\gdef\verbatim{\@verbatim \frenchspacing\@vobeyspaces
   \let\par=^^M\let^^M=\DoLongLines\count@=0  % New stuff
   \@xverbatim}
}
\def\CharsPerLine{60}
\def\ContinuationChar{{\rm ---}}
\def\DoLongLines{\afterassignment\DoOneChar\let\next= }
\def\DoOneChar{%
  \ifx\next\end
  \else\ifx\next\DoLongLines\count@=0 \par
  \else
    \advance\count@ by 1
    \ifnum\count@=\CharsPerLine
      \ContinuationChar
      \par\noindent{\ \ \ \ \ \ \ \ }\count@=9 \fi
    \next
    \let\next\DoLongLines
  \fi\fi
  \next}

--
"There's a really fine line between clever and stupid"
				Nigel- Lead Guitar (Spinal Tap)
jmn@united.berkeley.edu, or jmn@power.berkeley.edu