% 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 26.8, p. III-367. % Original source in file "macros6.TEX", starting line 495. \wlog{L: "legdate.tip" ["macros6.TEX," l. 495, p. III-367]}% % This file DOES belong to format "texip." \InputD{legmonth.tip} \InputD{legyear.tip} \InputD{rangetst.tip} \InputD{ndaysmo.tip} \catcode`\@ = 11 \newcount\@TempCheckDate \def\CheckDate #1#2#3{% \CheckLegalYear{#1}% \CheckLegalMonth{#2}% \NumberOfDaysInMonth{#1}{#2}{\@TempCheckDate}% \CheckRange{#3}{1}{\@TempCheckDate}% {\string\CheckDate: provided date #1-#2-#3 is illegal.}% } \catcode`\@ = 12