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% catchfile-sty-hook.4ht, generated from tex4ht-4ht.tex
% Copyright 2020 TeX Users Group
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either
% version 1.3c of this license or (at your option) any
% later version. The latest version of this license is in
%   http://www.latex-project.org/lppl.txt
% and version 1.3c or later is part of all distributions
% of LaTeX version 2005/12/01 or later.
%
% This work has the LPPL maintenance status "maintained".
%
% The Current Maintainer of this work
% is the TeX4ht Project <http://tug.org/tex4ht>.
%
% If you modify this program, changing the
% version identification would be appreciated.
\immediate\write-1{version 2020-10-08-14:12}

\AddToHook{package/after/catchfile}{
  \def\CatchFile@CheckFileExists#1{%
    \IfFileExists{#1}{%
      \expandafter\CatchFile@DefFile\@filef@und\@nil
      \begingroup\expandafter\expandafter\expandafter\endgroup
      \expandafter\ifx\csname @addtofilelist\endcsname\relax
      \else
      \@addtofilelist{#1}
      \fi
    }{%
      \let\CatchFile@File\relax
    }%
  }%
}