🚀 go-pugleaf

Here is a calendar program I just found on GEnie:

%!PS-Adobe-2.0      
%% Title:         CALENDAR.PS
%% Creator:       C.FOSSETT
%% CreationDate:  November 10, 1990

%------------------------------ CALENDAR.PS ----------------------------------

% Copyright (c) 1990                                                         
% Chad Fossett               Commercial use is absolutely prohibited.       
% 8026 Nightingale Way       Personal use is permitted as long as this      
% San Diego, CA  92123       copyright notice remains present and intact.   
% All Rights Reserved.                                                       

% CALENDAR.PS produces a wall-style monthly calendar for December, 1990.
% It can be easily modified to print any month.  It can also be tailored
% to individual tastes by adjusting the calendar size and aspect-ratio,
% and by adding personalized special events to any date.

%----------------------------------------------------------------------------
%
%      The calendar is laid out as follows:
%
%                         columns on the x-axis
%              0     1     2     3     4     5     6
%            0                                               Each cell is
%                0 0   1 0   2 0   3 0                       designated as   
%            1                                               the intersection
%                0 1                                         of the two lines
%    rows    2                                               at its upper
%   on the       0 2                           5 2           left corner
%   y-axis   3                                               (see the x,y
%                            2 3                             notation in
%            4                                               the cells to
%                                  3 4                       the left for
%                                                            examples).
%
%-----------------------------------------------------------------------------

% As it is set up below, it prints in landscape orientation on an 8 x11 page.
% The aspect ratio can be changed by adjusting CH and CW below, or by
% xy scaling the whole calendar at print time.
% If the size and aspect ratio are OK, then the only things needing
% attention are the top three definitions (month, startday, and numdays),
% and any special events, holidays, etc. (enumerated near the end).


%------------------------------- PROLOGUE ------------------------------------

/month (DECEMBER  1990) def         % This gets centered at the top

/startday 6 def     % day of the week the month starts on 0=sun, 1=mon etc.
/numdays 31 def     % number of days in the month

/monthsize 36 def                   % Point size for month (JANUARY  1990),
/datesize 30 def                    % date (1 2 3 4 etc.),
/daysize 14 def                     % and day (SUNDAY, MONDAY etc.).

/monthfont {/AvantGarde-Demi findfont monthsize scalefont setfont} def
/datefont {/AvantGarde-Demi findfont datesize scalefont setfont} def
/dayfont {/AvantGarde-Book findfont daysize scalefont setfont} def

/CH -82 def                         % Cell Height (y-axis value of 1)
/CW 105 def                         % Cell Width  (x-axis value of 1)

/cellcoord {CH mul exch CW mul exch} def          % scaling for 1x1 cells

/monthshow {monthfont                             % set the font
            month dup stringwidth pop CW 7 mul    % and print the month
            exch sub 2 div                        % centered
            70 monthsize sub rmoveto show} def    % above the line

/daynames {[(SUNDAY) (MONDAY)                     % 7-element array
            (TUESDAY) (WEDNESDAY)                 % of the names of
            (THURSDAY) (FRIDAY)                   % the days of
            (SATURDAY)]} def                      % the week

/dayshow { dayfont                                % display the daynames
  0 1 6                                           % start the loop (0-6)
   {dup 0 cellcoord moveto                        % move to a cell 0
    daynames exch get                             % get the array element
    dup stringwidth pop CW exch sub 2 div         % center it left-right
    26 daysize sub 2 div                          % and up-down
    gsave rmoveto show grestore                   % show it
    0 25 rlineto CW 0 rlineto                     % and draw a line
    0 -25 rlineto stroke                          % around it (on 3 sides)
   } for                                          % end of the loop
 } def

/bestgray {106 45                                 % the Guru's
          {dup mul exch dup                       % (Don Lancaster's)
           mul add 1.0 exch sub}                  % best gray half-tone
           setscreen} def                         % setscreen

/box {1 setlinewidth gsave                        % draw a box
      CW 0 rlineto 0 CH rlineto                   % CH high by
      CW neg 0 rlineto closepath                  % CW wide
      stroke grestore
     } def

/datecalc {7 mul add startday sub 1 add} def      % calculate date (- OK)

/gtcheck {dup 0 gt                                % if greater than 0,
          {lecheck}                               % do lecheck
          {pop pop pop} ifelse} def               % if not, pop off

/lecheck {dup numdays le                          % if   numdays,
          {row5check}                             % do row5check
          {pop pop pop} ifelse} def               % if not, pop off

/row5check {2 copy pop 5 eq                       % if row equals 5,
            {xsundaycheck}                        % do x(tra)sundatecheck
            {sundaycheck} ifelse} def             % if not, sundaycheck

/xsundaycheck {3 copy pop pop 0 eq                % if col equals 0,
               {xsundateshow pop pop}             % do x(tra)sundateshow
               {xdateshow pop pop} ifelse} def    % if not, x(tra)dateshow

/sundaycheck {3 copy pop pop 0 eq                 % if col equals 0,
               {sundateshow pop pop}              % do sundateshow
               {dateshow pop pop} ifelse} def     % if not, dateshow

/dateshow {datefont
           2 string cvs dup stringwidth           % prints date towards 
           pop CW 4 sub exch sub 0 datesize       % the upper-right
           .9 mul sub rmoveto                     % corner of the cell
           show } def

/sundateshow {datefont
           2 string cvs dup stringwidth           % same as dateshow
           pop CW 4 sub exch sub 0 datesize       % but
           .9 mul sub rmoveto 0 setlinewidth
           true charpath gsave                    % instead of black,
           bestgray .96 setgray fill              % filled with gray
           grestore stroke } def                  % and outlined

/xdateshow {0 CH -2 div rmoveto gsave             % moves *up* a half
           CW 0 rlineto                           % cell, and prints
           1 setlinewidth stroke grestore         % a line across;
           dateshow} def                          % then dateshow

/xsundateshow {0 CH -2 div rmoveto gsave          % moves *up* a half
              CW 0 rlineto                        % cell, and prints
              1 setlinewidth stroke grestore      % a line across;
              sundateshow} def                    % then sundateshow

/docell {dup 5 lt {box} if          % print a box if lt row 5
         2 copy                     % col row col row on stack
         datecalc                   % col row datenum after datecalc
         gtcheck                    % start a series of checks for
        } def                       %     a printable number

/calendar {gsave                    % start calendar definition

1 setlinewidth                      % set stroke line width to 1

0 0 cellcoord moveto monthshow      % show the month

dayshow                             % show the days

0 1 5 { dup                         % do dates; loop for rows (nb *6* rows)
   0 1 6 {                          % nested loop for columns (7)
      exch 2 copy                   % col row col row on stack
      cellcoord moveto docell dup   % go to the cell and do it
         } for pop pop              % end of nested loop
      } for                         % end of outer loop

grestore} def                       % end calendar definition


/littlecal {cellcoord gsave translate             % prints a small calendar.
            4.5 -20 translate                     % 0 0, then fudge a bit
            .13 .13 scale                         % reduce the size
            calendar grestore} def                % and do calendar

/specialfont {/AvantGarde-Book findfont 8 scalefont setfont} def

/specialevent {specialfont                        % prints special events
              cellcoord moveto gsave              % towards the bottom right
              dup stringwidth pop CW 4 sub        % of a cell
              exch sub CH 4 add rmoveto
              show grestore} def                    

/holiday {specialevent                            % print specialevent,
          sundateshow} def                        % then gray date


%-------------------------------- SCRIPT -------------------------------------


-90 rotate                  % landscape mode
-763.5 472.5 translate      % 0 0 at the UL corner of UL cell

calendar                    % and print it - this is the basic calendar


% Then print any special days & events, holidays, small calendars, etc.
% This is done manually to facilitate month-to-month changes, and
% to avoid the "clunky stuff" that shows up if they're displayed in
% the small calendars (at least at 300 dpi on my H-P LaserJet II).


(Pearl Harbor Day, 1941) 5 1 specialevent   % a special day in cell 5 1
(Winter begins) 6 3 specialevent            % onset of winter in 6 3
(full moon) 0 1 specialevent                % full moon in 0 1
(Chanukah) 3 2 specialevent                 % a religious celebration in 3 2
(Grandma's Birthday) 1 3.5 specialevent     % a birthday reminder in cell 1 3.5
                                            % (the upper "half" cell above 1 4)
(New Year's Eve) 1 4 specialevent           % New Year's Eve in cell 1 4
(25) (Christmas) 2 4 holiday                % make the 25th (Christmas)
                                            % look like a holiday in 2 4
                                            % (note *2* strings for holidays)

/month (NOVEMBER 1990) def       % print the previous month's calendar
/startday 4 def                  % which starts on Thursday (4)
/numdays 30 def                  % and has 30 days
1 0 littlecal                    % as a small calendar in 1 0

/month (JANUARY 1991) def        % print the next month's calendar
/startday 2 def                  % which starts on Tuesday (2)
/numdays 30 def                  % and has 30 days
5 0 littlecal                    % as a small calendar in 5 0

showpage                         % and finally, show what's there

quit                             % and quit

%---------------------------- END CALENDAR.PS --------------------------------