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% This macro source file is from the four volume series
% "TeX in Practice" by Stephan von Bechtolsheim, published
% 1993 by Springer-Verlag, New York.
% Copyright 1993 Stephan von Bechtolsheim.
% No warranty or liability is assumed.
% This macro may be copied freely if no fees other than
% media cost or shipping charges are charged and as long
% as this copyright and the following source code itself
% is not changed. Please see the series for further information.
%
% Version: 1.1
% Date: Sep 10, 1993
%
%
% This source code is documented in 28.4.3, p. III-468.
% Original source in file "io1.TEX", starting line 1076.
\wlog{L: "inputd.tip" ["io1.TEX," l. 1076, p. III-468]}%
% This file DOES belong to format "texip."
\input namedef.tip
\newif\ifInputDVerbose
\InputDVerbosefalse
\catcode`\@ = 11
\newif\if@InputDList
\@InputDListfalse
\def\@InputDPrefix{@InputD-}
\NameDef{\@InputDPrefix namedef.tip}{}
\def\InputD #1{% 
    \if\NameDefinedConditional{\@InputDPrefix #1}%
        \ifInputDVerbose
            \wlog{\string\InputD: file "#1" was read-in before.}%
        \fi
    \else
        \NameDef{\@InputDPrefix #1}{}% 
        \input #1
        \if@InputDList
            \immediate\write\@InputDStream{#1}% 
        \fi
    \fi
}
\catcode`\@ = 12
\InputD{inputdl.tip}