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%% This is file `hebcal.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% hebrew.dtx  (with options: `calendar')
%% 
%% This is a generated file.
%% 
%% Copyright 1997-1998 Boris Lavva and any individual authors
%% listed elsewhere in this file. All rights reserved.
%% 
%% For further copyright information, and conditions for modification
%% and distribution, see any other copyright notices in this file.
%% 
%% This file is contributed to the Babel system, release 3.6.
%% ----------------------------------------------------------
%%   This system is distributed in the hope that it will be useful,
%%   but WITHOUT ANY WARRANTY; without even the implied warranty of
%%   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
%% 
%%   For error reports concerning UNCHANGED versions of this file no
%%   more than one year old, see bugs.txt.
%% 
%%   Please do not request updates from me directly.  Primary
%%   distribution is through the CTAN archives.
%% 
%% 
%% IMPORTANT COPYRIGHT NOTICE:
%% 
%% You are NOT ALLOWED to distribute this file alone.
%% 
%% You are allowed to distribute this file under the condition that it
%% is distributed together with all the files listed in manifest.txt.
%% 
%% If you receive only some of these files from someone, complain!
%% 
%% 
%% Permission is granted to customize the declarations in this file to
%% serve the needs of your installation, provided that you comply with
%% the conditions in the file legal.txt.
%% 
%% However, NO PERMISSION is granted to distribute a modified version
%% of this file under its original name.
%% 
%% 
%% MODIFICATION ADVICE:
%% 
%% If you want to customize this file, it is best to make a copy of
%% the source file(s) from which it was produced.  Use a different
%% name for your copy(ies) and modify the copy(ies); this will ensure
%% that your modifications do not get overwritten when you install a
%% new release of the standard system.
%% 
%% You can then easily distribute your modifications by distributing
%% the modified and renamed copy of the source file, together with a
%% suitable .ins file, taking care to observe the conditions in
%% legal.txt; this will ensure that other users can safely use
%% your modifications.
%% 
%% The names of the source files used are shown above.
%% 
%% 
%% TeX &amp; LaTeX macros for computing Hebrew date from Gregorian one
%% Copyright (C) 1991 by Michail Rozman, misha@iop.tartu.ew.su
%%
\ProvidesPackage{hebcal}
        [1998/01/01 v2.0a
         Hebrew calendar
         (test version: still liable to change)]
\newcount\Hebrewday  \newcount\Hebrewmonth   \newcount\Hebrewyear
\def\Hebrewdate#1#2#3{%
    \HebrewFromGregorian{#1}{#2}{#3}
                        {\Hebrewday}{\Hebrewmonth}{\Hebrewyear}%
    \ifundefined{if@rl}%
       \FormatForEnglish{\Hebrewday}{\Hebrewmonth}{\Hebrewyear}%
    \else%
       \FormatDate{\Hebrewday}{\Hebrewmonth}{\Hebrewyear}%
    \fi}
\def\Hebrewtoday{\Hebrewdate{\day}{\month}{\year}}
\let\hebrewtoday=\Hebrewtoday
\def\Hebrewsetreg{%
    \HebrewFromGregorian{\day}{\month}{\year}
                        {\Hebrewday}{\Hebrewmonth}{\Hebrewyear}}
\def\FormatDate#1#2#3{%
        \if@rl%
            \FormatForHebrew{#1}{#2}{#3}%
        \else%
            \FormatForEnglish{#1}{#2}{#3}
        \fi}
\def\HebrewYearChar{'}
\def\ShortHYName#1{{%
       \count2 = #1%
       \Remainder{\count2}{1000}{#1}% E.g., for  5752: #1 = 752
       \def\HY{}% the string of hundreds, tens and ones
       \ifnum #1 &gt; 799 \strcat{\HY}{\tav\tav}\advance#1 by -800 \fi%
       \ifnum #1 &gt; 399 \strcat{\HY}{\tav}\advance#1  by -400 \fi%
       \ifnum #1 &gt; 299 \strcat{\HY}{\shin}\advance#1  by -300 \fi%
       \ifnum #1 &gt; 199 \strcat{\HY}{\resh}\advance#1  by -200 \fi%
       \ifnum #1 &gt; 99  \strcat{\HY}{\qof}\advance#1  by -100 \fi%
       \ifnum #1 &gt; 0
           \ifnum #1 = 16 %
                   \strcat{\HY}{\tet\zayin}%
           \else%
                   \ifnum #1 = 15 %
                           \strcat{\HY}{\tet\vav}%
                   \else%
                           \Remainder{#1}{10}{\count0 }%
                           \divide #1 by 10 %
                           \ifnum\count0 = 0%
                               \strcat{\HY}{\TensInHebrewEnd{#1}}%
                           \else%
                               \strcat{\HY}{\TensInHebrew{#1}}%
                               \strcat{\HY}{\DigitInHebrew{\count0 }}%
                           \fi%
                   \fi%
           \fi%
       \fi%
       \countdef\HYLength=0  % \HYLength==\count0 = strlen(\HY)
       \HYLength =0 \expandafter\getlength\HY\end%
       \ifnum\HYLength &gt; 0 %
           \ifnum\HYLength = 1 %
                   \HY\HebrewYearChar%
           \else%
                   \expandafter\Insert\HY%
           \fi%
       \else%
                   \relax%
       \fi}}
\def\HebrewYearName#1{{%
       \count2 = #1%
       \Remainder{\count2}{10000}{#1}% macro only for year &lt;= 9999
       \count2 = #1%
       \Remainder{\count2}{1000}{#1}% E.g., for  5752: #1 = 752
       \divide \count2 by 1000 %      E.g., for  5752: \count2 = 5
       \countdef\thousand=2 %               \thousand==\count2
       \def\Thousands{}% the string of thousands
       \strcat{\Thousands}{\DigitInHebrew{\thousand }}% output 1000'
       \ifnum\thousand = 5 % Change it in the next Hebrew Millennium..
               \ifnum#1 &gt; 0 % if 5000 &lt; year &lt; 6000
                      \def\Thousands{}% don't mention thousands
               \fi%
       \fi%
       \countdef\ThousandsLength=0 %
       % \ThousandsLength==\count0 = strlen(\Thousands)
       \ThousandsLength =0 \expandafter\getlength\Thousands\end%
       % if the letter of thousands is not empty
       \ifnum\ThousandsLength &gt; 0
               \strcat{\Thousands}{'}% add '
       \fi%
       \def\HY{\ShortHYName{#1}}% the string of hundreds, tens and ones
       \def\PratGadol{}% An additional string to date. Default: empty
       \ifnum\thousand &lt; 1%
           \def\PratGadol{\ )\lamed\pe"\gimel(}%
       \fi%
       \ifnum #1 = 0%
           \def\PratGadol{\ )\lamed\pe"\gimel(}%
       \fi%
       \Thousands\HY\PratGadol}}
\def\HebrewMonthName#1#2{%
    \ifnum #1 = 7 %
    \CheckLeapHebrewYear{#2}%
        \if@HebrewLeap \alef\dalet\resh\ \bet'%
           \else \alef\dalet\resh%
        \fi%
    \else%
        \ifcase#1%
           % nothing for 0
           \or\tav\shin\resh\yod%
           \or\het\shin\vav\finalnun%
           \or\kaf\samekh\lamed\vav%
           \or\tet\bet\tav%
           \or\shin\bet\tet%
           \or\alef\dalet\resh\ \alef'%
           \or\alef\dalet\resh\ \bet'%
           \or\nun\yod\samekh\finalnun%
           \or\alef\yod\yod\resh%
           \or\samekh\yod\vav\finalnun%
           \or\tav\mem\vav\zayin%
           \or\alef\bet%
           \or\alef\lamed\vav\lamed%
        \fi%
    \fi}
\def\HebrewDayName#1{%
   \ifcase#1%
       % nothing for 0
       \or\alef'%
       \or\bet'%
       \or\gimel'%
       \or\dalet'%
       \or\he'%
       \or\vav'%
       \or\zayin'%
       \or\het'%
       \or\tet'%
       \or\yod'%
       \or\yod''\alef%
       \or\yod''\bet%
       \or\yod''\gimel%
       \or\yod''\dalet%
       \or\tet''\vav%
       \or\tet''\zayin%
       \or\yod''\zayin%
       \or\yod''\het%
       \or\yod''\tet%
       \or\kaf'%
       \or\kaf''\alef%
       \or\kaf''\bet%
       \or\kaf''\gimel%
       \or\kaf''\dalet%
       \or\kaf''\he%
       \or\kaf''\vav%
       \or\kaf''\zayin%
       \or\kaf''\het%
       \or\kaf''\tet%
       \or\lamed'%
       \or\lamed''\alef%
   \fi}
\def\DigitInHebrew#1{%
    \ifcase#1%
         %  nothing for 0
            \or\alef%  1
            \or\bet%   2
            \or\gimel% 3
            \or\dalet% 4
            \or\he%    5
            \or\vav%   6
            \or\zayin% 7
            \or\het%   8
            \or\tet%   9
    \fi}
\def\TensInHebrew#1{%
    \ifcase #1%
           % nothing for 0
            \or\yod%    10
            \or\kaf%    20
            \or\lamed%  30
            \or\mem%    40
            \or\nun%    50
            \or\samekh% 60
            \or\ayin%   70
            \or\pe%     80
            \or\tsadi%  90
    \fi}
\def\TensInHebrewEnd#1{%
    \ifcase #1%
            %    nothing for 0
            \or\yod%        10
            \or\finalkaf%   20
            \or\lamed%      30
            \or\finalmem%   40
            \or\finalnun%   50
            \or\samekh%     60
            \or\ayin%       70
            \or\finalpe%    80
            \or\finaltsadi% 90
    \fi}
\def\FormatForHebrew#1#2#3{%
  \HebrewDayName{#1}~\bet\HebrewMonthName{#2}{#3},~\HebrewYearName{#3}}
\def\HebrewMonthNameInEnglish#1#2{%
    \ifnum #1 = 7%
    \CheckLeapHebrewYear{#2}%
        \if@HebrewLeap Adar II\else Adar\fi%
    \else%
        \ifcase #1%
            % nothing for 0
            \or Tishrei%
            \or Heshvan%
            \or Kislev%
            \or Tebeth%
            \or Shebat%
            \or Adar I%
            \or Adar II%
            \or Nisan%
            \or Iyar%
            \or Sivan%
            \or Tammuz%
            \or Av%
            \or Elul%
        \fi
    \fi}
\def\FormatForEnglish#1#2#3{%
    \HebrewMonthNameInEnglish{#2}{#3} \number#1,\ \number#3}
\newcount\@common
\def\Remainder#1#2#3{%
    #3 = #1%                   %  c = a
    \divide #3 by #2%          %  c = a/b
    \multiply #3 by -#2%       %  c = -b(a/b)
    \advance #3 by #1}%        %  c = a - b(a/b)
\newif\if@Divisible
\def\CheckIfDivisible#1#2{%
    {%
      \countdef\tmp = 0% \tmp == \count0 - temporary variable
      \Remainder{#1}{#2}{\tmp}%
      \ifnum \tmp = 0%
          \global\@Divisibletrue%
      \else%
          \global\@Divisiblefalse%
      \fi}}
\def\strcat#1#2{\edef#1{#1#2}}
\def\getlength#1{%
       \ifx#1\end%
         \let\next=\relax%
       \else%
         \advance\count0 by 1%
         \let\next=\getlength%
       \fi%
       \next}
\def\Insert#1{%
       \ifnum\count0 = 1%
          #1%
          \let\next=\relax%
       \else%
          #1%
          \ifnum\count0 = 2%
             "%
          \fi
          \advance\count0 by -1%
          \let\next=\Insert%
       \fi%
       \next}
\def\ifundefined#1{\expandafter\ifx\csname#1\endcsname\relax}
\newif\if@GregorianLeap
\def\IfGregorianLeap#1{%
    \CheckIfDivisible{#1}{4}%
    \if@Divisible%
        \CheckIfDivisible{#1}{100}%
        \if@Divisible%
            \CheckIfDivisible{#1}{400}%
            \if@Divisible%
                \@GregorianLeaptrue%
            \else%
                \@GregorianLeapfalse%
            \fi%
        \else%
            \@GregorianLeaptrue%
        \fi%
    \else%
        \@GregorianLeapfalse%
    \fi%
    \if@GregorianLeap}
\def\GregorianDaysInPriorMonths#1#2#3{%
    {%
        #3 = \ifcase #1%
               0 \or%             % no month number 0
               0 \or%
              31 \or%
              59 \or%
              90 \or%
             120 \or%
             151 \or%
             181 \or%
             212 \or%
             243 \or%
             273 \or%
             304 \or%
             334%
        \fi%
        \IfGregorianLeap{#2}%
            \ifnum #1 &gt; 2%        % if month after February
                \advance #3 by 1% % add leap day
            \fi%
        \fi%
        \global\@common = #3}
    #3 = \@common}
\def\GregorianDaysInPriorYears#1#2{%
     {%
         \countdef\tmpc = 4%      % \tmpc==\count4
         \countdef\tmpb = 2%      % \tmpb==\count2
         \tmpb = #1%              %
         \advance \tmpb by -1%    %
         \tmpc = \tmpb%           % \tmpc = \tmpb = year-1
         \multiply \tmpc by 365%  % Days in prior years =
         #2 = \tmpc%              % = 365*(year-1) ...
         \tmpc = \tmpb%           %
         \divide \tmpc by 4%      % \tmpc = (year-1)/4
         \advance #2 by \tmpc%    % ... plus Julian leap days ...
         \tmpc = \tmpb%           %
         \divide \tmpc by 100%    % \tmpc = (year-1)/100
         \advance #2 by -\tmpc%   % ... minus century years ...
         \tmpc = \tmpb%           %
         \divide \tmpc by 400%    % \tmpc = (year-1)/400
         \advance #2 by \tmpc%    % ... plus 4-century years.
         \global\@common = #2}
    #2 = \@common}
\def\AbsoluteFromGregorian#1#2#3#4{%
    {%
        \countdef\tmpd = 0%       % \tmpd==\count0
        #4 = #1%                  % days so far this month
        \GregorianDaysInPriorMonths{#2}{#3}{\tmpd}%
        \advance #4 by \tmpd%     % add days in prior months
        \GregorianDaysInPriorYears{#3}{\tmpd}%
        \advance #4 by \tmpd%     % add days in prior years
        \global\@common = #4}
    #4 = \@common}
\newif\if@HebrewLeap
\def\CheckLeapHebrewYear#1{%
    {%
        \countdef\tmpa = 0%       % \tmpa==\count0
        \countdef\tmpb = 1%       % \tmpb==\count1
        \tmpa = #1%
        \multiply \tmpa by 7%
        \advance \tmpa by 1%
        \Remainder{\tmpa}{19}{\tmpb}%
        \ifnum \tmpb &lt; 7%         % \tmpb = (7*year+1)%19
            \global\@HebrewLeaptrue%
        \else%
            \global\@HebrewLeapfalse%
        \fi}}
\def\HebrewElapsedMonths#1#2{%
    {%
        \countdef\tmpa = 0%       % \tmpa==\count0
        \countdef\tmpb = 1%       % \tmpb==\count1
        \countdef\tmpc = 2%       % \tmpc==\count2
        \tmpa = #1%               %
        \advance \tmpa by -1%     %
        #2 = \tmpa%               % #2 = \tmpa = year-1
        \divide #2 by 19%         % Number of complete Meton cycles
        \multiply #2 by 235%      % #2 = 235*((year-1)/19)
        \Remainder{\tmpa}{19}{\tmpb}% \tmpa = years%19-years this cycle
        \tmpc = \tmpb%            %
        \multiply \tmpb by 12%    %
        \advance #2 by \tmpb%     % add regular months this cycle
        \multiply \tmpc by 7%     %
        \advance \tmpc by 1%      %
        \divide \tmpc by 19%      % \tmpc = (1+7*((year-1)%19))/19 -
        \advance #2 by \tmpc%     %  add leap months
        \global\@common = #2}
    #2 = \@common}
\def\HebrewElapsedDays#1#2{%
    {%
        \countdef\tmpa = 0%       % \tmpa==\count0
        \countdef\tmpb = 1%       % \tmpb==\count1
        \countdef\tmpc = 2%       % \tmpc==\count2
        \HebrewElapsedMonths{#1}{#2}%
        \tmpa = #2%               %
        \multiply \tmpa by 13753% %
        \advance \tmpa by 5604%   % \tmpa=MonthsElapsed*13758 + 5604
        \Remainder{\tmpa}{25920}{\tmpc}% \tmpc == ConjunctionParts
        \divide \tmpa by 25920%
        \multiply #2 by 29%
        \advance #2 by 1%
        \advance #2 by \tmpa%     %  #2 = 1 + MonthsElapsed*29 +
        \Remainder{#2}{7}{\tmpa}% %  \tmpa == DayOfWeek
        \ifnum \tmpc &lt; 19440%
            \ifnum \tmpc &lt; 9924%
            \else%                % New moon at 9 h. 204 p. or later
                \ifnum \tmpa = 2% % on Tuesday ...
                    \CheckLeapHebrewYear{#1}% of a common year
                    \if@HebrewLeap%
                    \else%
                        \advance #2 by 1%
                    \fi%
                \fi%
            \fi%
            \ifnum \tmpc &lt; 16789%
            \else%                 % New moon at 15 h. 589 p. or later
                \ifnum \tmpa = 1%  % on Monday ...
                    \advance #1 by -1%
                    \CheckLeapHebrewYear{#1}% at the end of leap year
                    \if@HebrewLeap%
                        \advance #2 by 1%
                    \fi%
                \fi%
            \fi%
        \else%
            \advance #2 by 1%      %  new moon at or after midday
        \fi%
        \Remainder{#2}{7}{\tmpa}%  %  \tmpa == DayOfWeek
        \ifnum \tmpa = 0%          %  if Sunday ...
            \advance #2 by 1%
        \else%                     %
            \ifnum \tmpa = 3%      %  Wednesday ...
                \advance #2 by 1%
            \else%
                \ifnum \tmpa = 5%  %  or Friday
                     \advance #2 by 1%
                \fi%
            \fi%
        \fi%
        \global\@common = #2}
    #2 = \@common}
\def\DaysInHebrewYear#1#2{%
    {%
        \countdef\tmpe = 12%   % \tmpe==\count12
        \HebrewElapsedDays{#1}{\tmpe}%
        \advance #1 by 1%
        \HebrewElapsedDays{#1}{#2}%
        \advance #2 by -\tmpe%
        \global\@common = #2}
    #2 = \@common}
\def\HebrewDaysInPriorMonths#1#2#3{%
    {%
        \countdef\tmpf= 14%    % \tmpf==\count14
        #3 = \ifcase #1%       % Days in prior month of regular year
               0 \or%          % no month number 0
               0 \or%          % Tishri
              30 \or%          % Heshvan
              59 \or%          % Kislev
              89 \or%          % Tebeth
             118 \or%          % Shebat
             148 \or%          % Adar I
             148 \or%          % Adar II
             177 \or%          % Nisan
             207 \or%          % Iyar
             236 \or%          % Sivan
             266 \or%          % Tammuz
             295 \or%          % Av
             325 \or%          % Elul
             400%              % Dummy
        \fi%
        \CheckLeapHebrewYear{#2}%
        \if@HebrewLeap%            % in leap year
            \ifnum #1 &gt; 6%         % if month after Adar I
                \advance #3 by 30% % add  30 days
            \fi%
        \fi%
        \DaysInHebrewYear{#2}{\tmpf}%
        \ifnum #1 &gt; 3%
            \ifnum \tmpf = 353%    %
                \advance #3 by -1% %
            \fi%                   %  Short Kislev
            \ifnum \tmpf = 383%    %
                \advance #3 by -1% %
            \fi%                   %
        \fi%
        \ifnum #1 &gt; 2%
            \ifnum \tmpf = 355%    %
                \advance #3 by 1%  %
            \fi%                   %  Long Heshvan
            \ifnum \tmpf = 385%    %
                \advance #3 by 1%  %
            \fi%                   %
        \fi%
        \global\@common = #3}
    #3 = \@common}
\def\AbsoluteFromHebrew#1#2#3#4{%
    {%
        #4 = #1%
        \HebrewDaysInPriorMonths{#2}{#3}{#1}%
        \advance #4 by #1%         % Add days in prior months this year
        \HebrewElapsedDays{#3}{#1}%
        \advance #4 by #1%         % Add days in prior years
        \advance #4 by -1373429%   % Subtract days before Gregorian
        \global\@common = #4}      %   01.01.0001
    #4 = \@common}
\def\HebrewFromGregorian#1#2#3#4#5#6{%
    {%
        \countdef\tmpx= 17%        % \tmpx==\count17
        \countdef\tmpy= 18%        % \tmpy==\count18
        \countdef\tmpz= 19%        % \tmpz==\count19
        #6 = #3%                   %
        \global\advance #6 by 3761%  approximation from above
        \AbsoluteFromGregorian{#1}{#2}{#3}{#4}%
        \tmpz = 1  \tmpy = 1%
        \AbsoluteFromHebrew{\tmpz}{\tmpy}{#6}{\tmpx}%
        \ifnum \tmpx &gt; #4%              %
            \global\advance #6 by -1% Hyear = Gyear + 3760
            \AbsoluteFromHebrew{\tmpz}{\tmpy}{#6}{\tmpx}%
        \fi%                            %
        \advance #4 by -\tmpx%     % Days in this year
        \advance #4 by 1%          %
        #5 = #4%                   %
        \divide #5 by 30%          % Approximation for month from below
        \loop%                     % Search for month
            \HebrewDaysInPriorMonths{#5}{#6}{\tmpx}%
            \ifnum \tmpx &lt; #4%
                \advance #5 by 1%
                \tmpy = \tmpx%
        \repeat%
        \global\advance #5 by -1%
        \global\advance #4 by -\tmpy}}
%%
%% \CharacterTable
%%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
%%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
%%   Digits        \0\1\2\3\4\5\6\7\8\9
%%   Exclamation   \!     Double quote  \"     Hash (number) \#
%%   Dollar        \$     Percent       \%     Ampersand     \&amp;
%%   Acute accent  \'     Left paren    \(     Right paren   \)
%%   Asterisk      \*     Plus          \+     Comma         \,
%%   Minus         \-     Point         \.     Solidus       \/
%%   Colon         \:     Semicolon     \;     Less than     \&lt;
%%   Equals        \=     Greater than  \&gt;     Question mark \?
%%   Commercial at \@     Left bracket  \[     Backslash     \\
%%   Right bracket \]     Circumflex    \^     Underscore    \_
%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
%%   Right brace   \}     Tilde         \~}
%%
\endinput
%%
%% End of file `hebcal.sty'.
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