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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: 1.0
+% Date: May 1, 1993
+%
+%
+% This source code is documented in 24.1.17.1, p. III-301.
+% Original source in file "macros4.TEX", starting line 1003.
+\wlog{L: "reverses.tip" ["macros4.TEX," l. 1003, p. III-301]}%
+% This file DOES belong to format "texip."
+\InputD{showx.tip}
+\catcode`\@ = 11
+\def\ReverseString #1#2{%
+ \def\@ReverseStringName{#1}%
+ \def\@ReversedString{}%
+ \edef\@ReverseTemp{#2}%
+ \ShowX\@ReverseTemp
+ \expandafter\@ReverseString\@ReverseTemp\@Del
+}
+\def\@ReverseString #1{%
+ \ifx #1\@Del
+ \expandafter\edef\@ReverseStringName{\@ReversedString}%
+ \let\@ReverseStringNext = \relax
+ \else
+ \edef\@ReversedString{#1\@ReversedString}%
+ \let\@ReverseStringNext = \@ReverseString
+ \def\@ReverseStringNext{\@ReverseString}%
+ \fi
+ \@ReverseStringNext
+}
+\catcode`\@ = 12