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% 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: 1.1
% Date: Sep 9, 1993
%
%
% This source code is documented in 26.13, p. III-376.
% Original source in file "macros6.TEX", starting line 867.
\wlog{L: "norpweek.tip" ["macros6.TEX," l. 867, p. III-376]}%
% This file DOES belong to format "texip."
\InputD{doloop.tip}
\InputD{nextday.tip}
\InputD{prevday.tip}
\catcode`\@ = 11
\newcount\@NextOrPrevWeekSameDayCount
\def\@NextOrPrevWeekSameDay #1#2#3#4#5#6#7{%
#4 = #1\relax
#5 = #2\relax
#6 = #3\relax
\DoLoop{\@NextOrPrevWeekSameDayCount}{1}{1}{7}%
{#7{#4}{#5}{#6}{#4}{#5}{#6}}%
}
\def\NextWeekSameDay #1#2#3#4#5#6{%
\@NextOrPrevWeekSameDay
{#1}{#2}{#3}{#4}{#5}{#6}{\NextDay}%
}
\def\PrevWeekSameDay #1#2#3#4#5#6{%
\@NextOrPrevWeekSameDay
{#1}{#2}{#3}{#4}{#5}{#6}{\PrevDay}%
}
\catcode`\@ = 12
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