% 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: 1.0 % Date: May 1, 1993 % % % This source code is documented in 28.5.7, p. III-481. % Original source in file "io1.TEX", starting line 1716. \wlog{L: "robust.tip" ["io1.TEX," l. 1716, p. III-481]}% % This file DOES belong to format "texip." \InputD{fotok.tip} \catcode`\@ = 11 \def\MakeRobust{} \def\TreatAsRobust #1{% \def #1{% \noexpand #1% }% } \newtoks\@RobustTokenList \@RobustTokenList = {} \def\AddToRobustList #1{% \@RobustTokenList = \expandafter{\the\@RobustTokenList #1}% } \def\Robusting{% \ForEachToken{\@RobustTokenList}{\TreatAsRobust}% } \catcode`\@ = 12