% 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 8.1.3, p. I-264. % Original source in file "vboxes2.TEX", starting line 193. \wlog{L: "nathd.tip" ["vboxes2.TEX," l. 193, p. I-264]}% % This file DOES belong to format "texip." \catcode`\@ = 11 \newbox\@NBox \def\NaturalHeight #1#2{% \setbox\@NBox = \vbox{\unvcopy #2} #1 = \ht\@NBox } \def\NaturalDepth #1#2{% \setbox\@NBox = \vbox{\unvcopy #2} #1 = \dp\@NBox } \catcode`\@ = 12