% This macro source file is from the four volume series

% 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 6.10.3, p. I-202.
% Original source in file "boxes.TEX", starting line 2455.
\wlog{L: "formline.tip" ["boxes.TEX," l. 2455, p. I-202]}%
% This file DOES belong to format "texip."
\def\FormLine #1#2#3{%
{%
\setbox0 = \hbox{#2}%
\dimen0 = #1%
\advance\dimen0 by -\wd0
\hbox{%
\box0
\hbox to 0pt{%
\vrule width \dimen0 height 0.4pt depth 0pt
\hss
}%
\raise 3pt \hbox to \dimen0 {\hfil #3\hfil}%
}%
}%
}