% 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 9.3.1, p. I-319.
% Original source in file "boxit.TEX", starting line 331.
\wlog{L: "boxing1.tip" ["boxit.TEX," l. 331, p. I-319]}%
% This file DOES belong to format "texip."
\def\BoxingA #1{% 
    \vbox{%
        \hrule
        \hbox{%
            \vrule
            #1% 
            \vrule
        }%
        \hrule
    }%
}