🚀 go-pugleaf

This posting contains a vastly improved postscript calendar based
on the original "pcal" posted here.  It has square days, grey numbers
for weekends and even little calendars for the previous and next month.
(It also has the leap year bug fixed).

It can still stand some improvement (like shading holidays and providing
labels for holidays, perhaps using the "holiday" program and some filters)
but I haven't got time to keep tweeking.  (Play with the weekday labels
and see if you can spruce it up).

Enjoy,
Tim Tessin - Lawrence Livermore National Laboratory 
tjt@tis.llnl.gov
Phone: (415) 423-4560 / 422-8971

------------------------   cut  here ----------------------------
#!/bin/csh -f
#
# Original From: patwood@unirot.UUCP (Patrick Wood)
# 
# The following is a PostScript program to print calendars.  It doesn't
# work on or before 1752.
# 
# Shell stuff added 3/9/87 by King Ables
# 
# Made pretty by tjt 1988
#
set printer=""

top:
if ($#argv > 0) then
	switch ("$argv[1]")
		case -*:
			set printer="$argv[1]"
			shift argv
			goto top
		case *:
			if ($?month) then
				set year="$argv[1]"
			else if ($?year) then
				echo "usage: $0 [-Pprinter] month year"
				exit 1
			else
				set month="$argv[1]"
			endif
			shift argv
			goto top
	endsw
endif

if ($?year) then
else 
	echo "usage: $0 [-Pprinter] month year"
	exit 1
endif

lpr $printer <<END-OF-CALENDAR
%!
% PostScript program to draw calendar
% Copyright (C) 1987 by Pipeline Associates, Inc.
% Permission is granted to modify and distribute this free of charge.

% /month should be set to a number from 1 to 12
% /year should be set to the year you want
% you can change the title and date fonts, if you want
% we figure out the rest
% won't produce valid calendars before 1800 (weird stuff happened
% in September of 1752)

/month $month def
/year $year def
/titlefont /Times-Bold def
/dayfont /Helvetica-Bold def

/month_names [ (January) (February) (March) (April) (May) (June) (July)
		(August) (September) (October) (November) (December) ] def

/prtnum { 3 string cvs show} def

/drawgrid {		% draw calendar boxes
	dayfont findfont 10 scalefont setfont
	0 1 6 {
		dup dup 100 mul 40 moveto
		[ (Sunday) (Monday) (Tuesday) (Wednesday) (Thursday) (Friday) (Saturday) ] exch get
		100 center
		100 mul 35 moveto
		1.0 setlinewidth
		0 1 5 {
			gsave
			100 0 rlineto 
			0 -80 rlineto
			-100 0 rlineto
			closepath stroke
			grestore
			0 -80 rmoveto
		} for
	} for
} def

/drawnums {		% place day numbers on calendar
	dayfont findfont 30 scalefont setfont
	/start startday def
	/days ndays def
	start 100 mul 5 add 10 rmoveto
	1 1 days {
		/day exch def
		gsave
		day start add 7 mod 0 eq
		{
			submonth 0 eq
			{
				.8 setgray
			} if
		} if
		day start add 7 mod 1 eq
		{
			submonth 0 eq
			{
				.8 setgray
			} if
		} if
		day prtnum
		grestore
		day start add 7 mod 0 eq
		{
			currentpoint exch pop 80 sub 5 exch moveto
		}
		{
			100 0 rmoveto
		} ifelse
	} for
} def

/drawfill {		% place fill squares on calendar
	/start startday def
	/days ndays def
	0 35 rmoveto
	1.0 setlinewidth
	0 1 start 1 sub {
		gsave
		.9 setgray
		100 0 rlineto 
		0 -80 rlineto
		-100 0 rlineto
		closepath fill
		grestore
		100 0 rmoveto
	} for
	submonth 1 eq
	{
		/lastday 42 def
		600 -365 moveto
	}
	{
		/lastday 40 def
		400 -365 moveto
	} ifelse
	lastday -1 ndays start 1 add add
	{
		/day exch def
		gsave
		.9 setgray
		100 0 rlineto 
		0 -80 rlineto
		-100 0 rlineto
		closepath fill
		grestore
		day 7 mod 1 eq
		{
			600 -365 80 add moveto
		}
		{
			-100 0 rmoveto
		} ifelse
	} for
} def

/isleap {		% is this a leap year?
	year 4 mod 0 eq		% multiple of 4
	year 100 mod 0 ne 	% not century
	year 1000 mod 0 eq or and	% unless it's a millenia
} def

/days_month [ 31 28 31 30 31 30 31 31 30 31 30 31 ] def

/ndays {		% number of days in this month
	days_month month 1 sub get
	month 2 eq	% Feb
	isleap and
	{
		1 add
	} if
} def

/startday {		% starting day-of-week for this month
	/off year 2000 sub def	% offset from start of "epoch"
	off
	off 4 idiv add		% number of leap years
	off 100 idiv sub	% number of centuries
	off 1000 idiv add	% number of millenia
	6 add 7 mod 7 add 	% offset from Jan 1 2000
	/off exch def
	1 1 month 1 sub {
		/idx exch def
		days_month idx 1 sub get
		idx 2 eq
		isleap and
		{
			1 add
		} if
		/off exch off add def
	} for
	off 7 mod		% 0--Sunday, 1--monday, etc.
} def

/center {		% center string in given width
	/width exch def
	/str exch def width str 
	stringwidth pop sub 2 div 0 rmoveto str show
} def

/calendar
{
	titlefont findfont 48 scalefont setfont
	0 60 moveto
	/month_name month_names month 1 sub get def
	month_name show
	/yearstring year 10 string cvs def
	700 yearstring stringwidth pop sub 60 moveto
	yearstring show

	0 0 moveto
	drawnums

	0 0 moveto
	drawfill

	0 0 moveto
	drawgrid
} def

90 rotate
50 -120 translate
/submonth 0 def
calendar
month 1 sub 0 eq
{
	/lmonth 12 def
	/lyear year 1 sub def
}
{
	/lmonth month 1 sub def
	/lyear year def
} ifelse
month 1 add 13 eq
{
	/nmonth 1 def
	/nyear year 1 add def
} 
{
	/nmonth month 1 add def
	/nyear year def
} ifelse
/submonth 1 def
/year lyear def
/month lmonth def
500 -365 translate
gsave
.138 .138 scale
10 -120 translate
calendar
grestore
/submonth 1 def
/year nyear def
/month nmonth def
100 0 translate
gsave
.138 .138 scale
10 -120 translate
calendar
grestore

showpage

END-OF-CALENDAR