% 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 26.11, p. III-372. % Original source in file "macros6.TEX", starting line 676. \wlog{L: "nextday.tip" ["macros6.TEX," l. 676, p. III-372]}% % This file DOES belong to format "texip." \InputD{legdate.tip} \InputD{ndaysmo.tip} \InputD{copydate.tip} \catcode`\@ = 11 \newcount\@TempNextDay \def\NextDay #1#2#3#4#5#6{% \CheckDate{#1}{#2}{#3}% \CopyDate{#1}{#2}{#3}{#4}{#5}{#6}% \advance #6 by 1 \NumberOfDaysInMonth{#1}{#2}{\@TempNextDay}% \ifnum #6 > \@TempNextDay #6 = 1 \advance #5 by 1 \ifnum #5 = 13 #5 = 1 \advance #4 by 1 \fi \fi } \catcode`\@ = 12