%
% Testfile to show that \DocInput worjks fith filenames with spaces
%
\documentclass{ltxdoc}
\begin{filecontents}{file name.dtx}
\typeout{file name.dtx (\CurrentFile)}
\end{filecontents}
\input{test2e}

\START
\AUTHOR{Bruno Le Floch}
\FORMAT{LaTeX2e<2020-10-01>}
\CLASS{ltxdoc}

\OMIT
\begin{document}
\TIMO

\DocInclude{file name}
\end{document}