% 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 7.4.3.1, p. I-239.
% Original source in file "vboxes1.TEX", starting line 1639.
\wlog{L: "setstrut.tip" ["vboxes1.TEX," l. 1639, p. I-239]}%
% This file DOES belong to format "texip."
\catcode`\@ = 11
\newdimen\@StrutBaseDimension
\newdimen\@StrutSkipTemp
\def\ComputeStrut{%
    \@StrutBaseDimension = \baselineskip
    \ifdim\baselineskip < 0pt
        \errhelp = {You probably called \string\offinterlineskip
                before \string\ComputeStrut}
        \errmessage{\string\ComputeStrut: negative
                \string\baselineskip (\the\baselineskip)}% 
    \fi
}
\def\MyStrut{% 
    \vrule height 0.7\@StrutBaseDimension
           depth 0.3\@StrutBaseDimension
           width 0pt
}
\def\HigherStrut #1{% 
    \@StrutSkipTemp = 0.7\@StrutBaseDimension
    \advance\@StrutSkipTemp by #1% 
    \vrule height \@StrutSkipTemp
           depth 0.3\@StrutBaseDimension
           width 0pt
}
\def\DeeperStrut #1{% 
    \@StrutSkipTemp = 0.3\@StrutBaseDimension
    \advance\@StrutSkipTemp by #1% 
    \vrule height 0.7\@StrutBaseDimension
           depth \@StrutSkipTemp
           width 0pt
}
\ComputeStrut
\catcode`\@ = 12