From e0c6872cf40896c7be36b11dcc744620f10adf1d Mon Sep 17 00:00:00 2001 From: Norbert Preining Date: Mon, 2 Sep 2019 13:46:59 +0900 Subject: Initial commit --- info/examples/tip/arbday.tip | 54 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 info/examples/tip/arbday.tip (limited to 'info/examples/tip/arbday.tip') diff --git a/info/examples/tip/arbday.tip b/info/examples/tip/arbday.tip new file mode 100644 index 0000000000..fa8921eb60 --- /dev/null +++ b/info/examples/tip/arbday.tip @@ -0,0 +1,54 @@ +% 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 26.16, p. III-381. +% Original source in file "macros6.TEX", starting line 1098. +\wlog{L: "arbday.tip" ["macros6.TEX," l. 1098, p. III-381]}% +% This file DOES belong to format "texip." +\InputD{legdate.tip} +\InputD{dateofw.tip} +\InputD{imodn.tip} +\InputD{nextday.tip} +\InputD{numdyr.tip} +\InputD{prmonth.tip} +\InputD{earliest.tip} +\InputD{doloop.tip} +\catcode`\@ = 11 +\newcount\@YearTemp +\newcount\@YearTop +\newcount\@MonthTemp +\newcount\@MonthTop +\newcount\@TempAD +\def\ArbitraryDayOfWeek #1#2#3#4{% + \CheckDate{#1}{#2}{#3}% + #4 = \DayOfWeekOfEarliestDate + \@YearTop = #1\relax + \advance\@YearTop by -1 + \DoLoop{\@YearTemp}{\EarliestYearDate}{1}{\@YearTop}{% + \NumberOfDaysInYear{\@YearTemp}{\@TempAD}% + \advance #4 by \@TempAD + }% + \IModN{#4}{7}{#4}% + \@MonthTop = #2\relax + \advance\@MonthTop by -1 + \DoLoop{\@MonthTemp}{1}{1}{\@MonthTop}{% + \NumberOfDaysInMonth{#1}{\@MonthTemp}{\@TempAD}% + \advance #4 by \@TempAD + }% + \IModN{#4}{7}{#4}% + \advance #4 by #3\relax + \advance #4 by -1 + \IModN{#4}{7}{#4}% +} +\catcode`\@ = 12 -- cgit v1.2.3