Calendar
Create a routine that will generate a text calendar for any year. Test the calendar by generating a calendar for the year 1969, on a device of the time. Choose one of the following devices:
- A line printer with a width of 132 characters.
- An IBM 3278 model 4 terminal (80×43 display with accented characters). Target formatting the months of the year to fit nicely across the 80 character width screen. Restrict number of lines in test output to 43.
You are encouraged to solve this task according to the task description, using any language you may know.
(Ideally, the program will generate well-formatted calendars for any page width from 20 characters up.)
Kudos (κῦδος) for routines that also transition from Julian to Gregorian calendar.
This task is inspired by Real Programmers Don't Use PASCAL by Ed Post, Datamation, volume 29 number 7, July 1983.
THE REAL PROGRAMMER'S NATURAL HABITAT "Taped to the wall is a line-printer Snoopy calender for the year 1969."
For further Kudos see task CALENDAR, where all code is to be in UPPERCASE.
For economy of size, do not actually include Snoopy generation in either the code or the output, instead just output a place-holder.
- Related task
360 Assembly
This program uses no external functions but two ASSIST macros (XDECO, XPRNT) to keep the code as short as possible. <lang 360asm>* calendar 08/06/2016 CALENDAR CSECT
USING CALENDAR,R13 base register
B 72(R15) skip savearea
DC 17F'0' savearea
STM R14,R12,12(R13) prolog
ST R13,4(R15) "
ST R15,8(R13) "
LR R13,R15 "
L R4,YEAR year
SRDA R4,32 .
D R4,=F'4' year//4
LTR R4,R4 if year//4=0
BNZ LYNOT
L R4,YEAR year
SRDA R4,32 .
D R4,=F'100' year//100
LTR R4,R4 if year//100=0
BNZ LY
L R4,YEAR year
SRDA R4,32 .
D R4,=F'400' if year//400
LTR R4,R4 if year//400=0
BNZ LYNOT
LY MVC ML+2,=H'29' ml(2)=29 leapyear LYNOT SR R10,R10 ltd1=0
LA R6,1 i=1
LOOPI1 C R6,=F'31' do i=1 to 31
BH ELOOPI1
XDECO R6,XDEC edit i
LA R14,TD1 td1
AR R14,R10 td1+ltd1
MVC 0(3,R14),XDEC+9 sub(td1,ltd1+1,3)=pic(i,3)
LA R10,3(R10) ltd1+3
LA R6,1(R6) i=i+1
B LOOPI1
ELOOPI1 LA R6,1 i=1 LOOPI2 C R6,=F'12' do i=1 to 12
BH ELOOPI2
ST R6,M m=i
MVC D,=F'1' d=1
MVC YY,YEAR yy=year
L R4,M m
C R4,=F'3' if m<3
BNL GE3
L R2,M m
LA R2,12(R2) m+12
ST R2,M m=m+12
L R2,YY yy
BCTR R2,0 yy-1
ST R2,YY yy=yy-1
GE3 L R2,YY yy
LR R1,R2 yy
SRA R1,2 yy/4
AR R2,R1 yy+(yy/4)
L R4,YY yy
SRDA R4,32 .
D R4,=F'100' yy/100
SR R2,R5 yy+(yy/4)-(yy/100)
L R4,YY yy
SRDA R4,32 .
D R4,=F'400' yy/400
AR R2,R5 yy+(yy/4)-(yy/100)+(yy/400)
A R2,D r2=yy+(yy/4)-(yy/100)+(yy/400)+d
LA R5,153 153
M R4,M 153*m
LA R5,8(R5) 153*m+8
D R4,=F'5' (153*m+8)/5
AR R5,R2 ((153*m+8)/5+r2
LA R4,0 .
D R4,=F'7' r4=mod(r5,7) 0=sun 1=mon ... 6=sat
LTR R4,R4 if j=0
BNZ JNE0
LA R4,7 j=7
JNE0 BCTR R4,0 j-1
MH R4,=H'3' j*3
LR R10,R4 j1=j*3
LR R1,R6 i
SLA R1,1 *2
LH R11,ML-2(R1) ml(i)
MH R11,=H'3' j2=ml(i)*3
MVC TD2,BLANK td2=' '
LA R4,TD1 @td1
LR R5,R11 j2
LA R2,TD2 @td2
AR R2,R10 @td2+j1
LR R3,R5 j2
MVCL R2,R4 sub(td2,j1+1,j2)=sub(td1,1,j2)
LR R1,R6 i
MH R1,=H'144' *144
LA R14,DA-144(R1) @da(i)
MVC 0(144,R14),TD2 da(i)=td2
LA R6,1(R6) i=i+1
B LOOPI2
ELOOPI2 L R1,YEAR year
XDECO R1,PG+23 edit year
XPRNT PG,35 print year
MVC WDLINE,BLANK wdline=' '
LA R10,1 lwdline=1
LA R8,1 k=1
LOOPK3 C R8,=F'3' do k=1 to 3
BH ELOOPK3
LA R4,WDLINE @wdline
AR R4,R10 +lwdline
MVC 0(20,R4),WDNA sub(wdline,lwdline+1,20)=wdna
LA R10,20(R10) lwdline=lwdline+20
C R8,=F'3' if k<3
BNL ITERK3
LA R10,2(R10) lwdline=lwdline+2
ITERK3 LA R8,1(R8) k=k+1
B LOOPK3
ELOOPK3 LA R6,1 i=1 LOOPI4 C R6,=F'12' do i=1 to 12 by 3
BH ELOOPI4
MVC MOLINE,BLANK moline=' '
LA R10,6 lmoline=6
LR R8,R6 k=i
LOOPK4 LA R2,2(R6) i+2
CR R8,R2 do k=i to i+2
BH ELOOPK4
LR R1,R8 k
MH R1,=H'10' *10
LA R3,MO-10(R1) mo(k)
LA R4,MOLINE @moline
AR R4,R10 +lmoline
MVC 0(10,R4),0(R3) sub(moline,lmoline+1,10)=mo(k)
LA R10,22(R10) lmoline=lmoline+22
LA R8,1(R8) k=k+1
B LOOPK4
ELOOPK4 XPRNT MOLINE,L'MOLINE print months
XPRNT WDLINE,L'WDLINE print days of week
LA R7,1 j=1
LOOPJ4 C R7,=F'106' do j=1 to 106 by 21
BH ELOOPJ4
MVC PG,BLANK clear buffer
LA R9,PG pgi=0
LR R8,R6 k=i
LOOPK5 LA R2,2(R6) i+2
CR R8,R2 do k=i to i+2
BH ELOOPK5
LR R1,R8 k
MH R1,=H'144' *144
LA R4,DA-144(R1) da(k)
BCTR R4,0 -1
AR R4,R7 +j
MVC 0(21,R9),0(R4) substr(da(k),j,21)
LA R9,22(R9) pgi=pgi+22
LA R8,1(R8) k=k+1
B LOOPK5
ELOOPK5 XPRNT PG,L'PG print buffer
LA R7,21(R7) j=j+21
B LOOPJ4
ELOOPJ4 LA R6,3(R6) i=i+3
B LOOPI4
ELOOPI4 L R13,4(0,R13) epilog
LM R14,R12,12(R13) "
XR R15,R15 "
BR R14 exit
LTORG
YEAR DC F'1969' <== MO DC CL10' January ',CL10' February ',CL10' March '
DC CL10' April ',CL10' May ',CL10' June '
DC CL10' July ',CL10' August ',CL10'September '
DC CL10' October ',CL10' November ',CL10' December '
ML DC H'31',H'28',H'31',H'30',H'31',H'30'
DC H'31',H'31',H'30',H'31',H'30',H'31'
WDNA DC CL20'Mo Tu We Th Fr Sa Su' M DS F D DS F YY DS F TD1 DS CL93 TD2 DS CL144 MOLINE DS CL66 WDLINE DS CL66 PG DC CL66' ' XDEC DS CL12 BLANK DC CL144' ' DA DS 12CL144
YREG
END CALENDAR</lang>
- Output:
2016
January February March
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 1 2 3 4 5 6 7 1 2 3 4 5 6
4 5 6 7 8 9 10 8 9 10 11 12 13 14 7 8 9 10 11 12 13
11 12 13 14 15 16 17 15 16 17 18 19 20 21 14 15 16 17 18 19 20
18 19 20 21 22 23 24 22 23 24 25 26 27 28 21 22 23 24 25 26 27
25 26 27 28 29 30 31 29 28 29 30 31
April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 1 1 2 3 4 5
4 5 6 7 8 9 10 2 3 4 5 6 7 8 6 7 8 9 10 11 12
11 12 13 14 15 16 17 9 10 11 12 13 14 15 13 14 15 16 17 18 19
18 19 20 21 22 23 24 16 17 18 19 20 21 22 20 21 22 23 24 25 26
25 26 27 28 29 30 23 24 25 26 27 28 29 27 28 29 30
30 31
July August September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 1 2 3 4 5 6 7 1 2 3 4
4 5 6 7 8 9 10 8 9 10 11 12 13 14 5 6 7 8 9 10 11
11 12 13 14 15 16 17 15 16 17 18 19 20 21 12 13 14 15 16 17 18
18 19 20 21 22 23 24 22 23 24 25 26 27 28 19 20 21 22 23 24 25
25 26 27 28 29 30 31 29 30 31 26 27 28 29 30
October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 1 2 3 4 5 6 1 2 3 4
3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11
10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18
17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25
24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31
31
Ada
We first specify a "Printable_Calendar" package (printable_calendar.ads). One can easily override the default names for weekdays and months, see the Calendar_-_for_"real"_programmers#Ada task.
<lang Ada>with Ada.Calendar.Formatting;
package Printable_Calendar is
subtype String20 is String(1 .. 20); type Month_Rep_Type is array (Ada.Calendar.Month_Number) of String20;
type Description is record
Weekday_Rep: String20;
Month_Rep: Month_Rep_Type;
end record;
-- for internationalization, you only need to define a new description
Default_Description: constant Description :=
(Weekday_Rep =>
"Mo Tu We Th Fr Sa So",
Month_Rep =>
(" January ", " February ", " March ",
" April ", " May ", " June ",
" July ", " August ", " September ",
" October ", " November ", " December "));
type Calendar (<>) is tagged private;
-- Initialize a calendar for devices with 80- or 132-characters per row function Init_80(Des: Description := Default_Description) return Calendar; function Init_132(Des: Description := Default_Description) return Calendar;
-- the following procedures output to standard IO; override if neccessary procedure New_Line(Cal: Calendar); procedure Put_String(Cal: Calendar; S: String);
-- the following procedures do the real stuff
procedure Print_Line_Centered(Cal: Calendar'Class; Line: String);
procedure Print(Cal: Calendar'Class;
Year: Ada.Calendar.Year_Number;
Year_String: String); -- this is the main Thing
private
type Calendar is tagged record
Columns, Rows, Space_Between_Columns: Positive;
Left_Space: Natural;
Weekday_Rep: String20;
Month_Rep: Month_Rep_Type;
end record;
end Printable_Calendar;</lang>
We continue with the implementation (printable_calendar.ads):
<lang Ada>with Ada.Text_IO;
package body Printable_Calendar is
use Ada.Calendar; package F renames Ada.Calendar.Formatting;
function Days_Per_Month(Year: Year_Number; Month: Month_Number)
return Day_Number is
begin
case Month is
when 1 | 3 | 5 | 7 | 8 | 10 | 12 => return 31;
when 4 | 6 | 9 | 11 => return 30;
when 2 =>
if Year mod 4 /= 0 then
return 28;
elsif Year mod 100 /= 0 then
return 29;
elsif Year mod 400 /= 0 then
return 28;
else
return 29;
end if;
end case;
end Days_Per_Month;
type Full_Month_Rep is array (1 .. 6) of String20;
function Generate_Printable_Month (Y: Ada.Calendar.Year_Number;
M: Ada.Calendar.Month_Number)
return Full_Month_Rep is
X: Full_Month_Rep := (others => " ");
-- If X=Generate_Printable_Month(2011, 01), the result could be
-- " January ", -- Month_Rep(01)
-- "Mo Tu We Th Fr Sa Su" -- Weekday_Rep
-- " 1 2" -- X(1)
-- " 3 4 5 6 7 8 9" -- X(2)
-- "10 11 12 13 14 15 16" -- X(3)
-- "17 18 19 20 21 22 23" -- X(4)
-- "24 25 26 27 28 29 30" -- X(5)
-- "31 " -- X(6)
Row: Integer range 1 .. 6 := 1;
Day_Index: constant array(F.Day_Name) of Positive
:= (1, 4, 7, 10, 13, 16, 19);
begin
for I in 1 .. Days_Per_Month(Y, M) loop
declare
Weekday: constant F.Day_Name := F.Day_Of_Week(F.Time_Of(Y, M, I));
Pos: constant Positive := Day_Index(Weekday);
Cleartext_Name: constant String := Day_Number'Image(I);
L: constant Positive := Cleartext_Name'Last;
begin
X(Row)(Pos .. Pos+1) := Cleartext_Name(L-1 .. L);
if F."="(Weekday, F.Sunday) then
Row := Row + 1;
end if;
end;
end loop;
return X;
end Generate_Printable_Month;
procedure Print(Cal: Calendar'class;
Year: Ada.Calendar.Year_Number;
Year_String: String) is
The_Month: Month_Number := Month_Number'First;
procedure Write_Space(Length: Natural) is
begin
for I in 1 .. Length loop
Cal.Put_String(" ");
end loop;
end Write_Space;
Year_Rep: array(Month_Number) of Full_Month_Rep;
begin
-- print the year
Cal.Print_Line_Centered(Year_String);
-- generate a printable form for all the months
for Month in Month_Number loop
Year_Rep(Month) := Generate_Printable_Month(Year, Month);
end loop;
begin
while True loop
-- new line
Cal.New_Line;
-- write month names
Write_Space(Cal.Left_Space);
for Month in The_Month .. The_Month+Cal.Columns-2 loop
Cal.Put_String(Cal.Month_Rep(Month));
Write_Space(Cal.Space_Between_Columns);
end loop;
Cal.Put_String(Cal.Month_Rep(The_Month+Cal.Columns-1));
Cal.New_Line;
-- write "Mo Tu .. So" - or whatever is defined by Weekday_Rep
Write_Space(Cal.Left_Space);
for Month in The_Month .. The_Month+Cal.Columns-2 loop
Cal.Put_String(Cal.Weekday_Rep);
Write_Space(Cal.Space_Between_Columns);
end loop;
Cal.Put_String(Cal.Weekday_Rep);
Cal.New_Line;
-- write the dates
for I in 1 .. 6 loop
Write_Space(Cal.Left_Space);
for Month in The_Month .. The_Month+Cal.Columns-2 loop
Cal.Put_String(Year_Rep(Month)(I));
Write_Space(Cal.Space_Between_Columns);
end loop;
Cal.Put_String(Year_Rep(The_Month+Cal.Columns-1)(I));
Cal.New_Line;
end loop;
The_Month := The_Month + Cal.Columns;
-- this will eventually raise Constraint_Error to terminate the loop
end loop;
exception
when Constraint_Error => null;
end;
end Print;
procedure New_Line(Cal: Calendar) is
begin
Ada.Text_IO.New_Line;
end New_Line;
procedure Put_String(Cal: Calendar; S: String) is
begin
Ada.Text_IO.Put(S);
end Put_String;
procedure Print_Line_Centered(Cal: Calendar'Class; Line: String) is
Width : constant Positive := Cal.Columns*20
+ (Cal.Columns-1)*Cal.Space_Between_Columns
+ Cal.Left_Space;
begin
if Line'Length >= Width-1 then
Cal.Put_String(Line);
Cal.New_Line;
else
Print_Line_Centered(Cal, " " & Line & " ");
end if;
end Print_Line_Centered;
function Init_80(Des: Description := Default_Description) return Calendar is
X: Calendar:=
(Columns => 3, Rows => 4, Space_Between_Columns => 4,
Left_Space => 1,
Weekday_Rep => Des.Weekday_Rep,
Month_Rep => Des.Month_Rep
);
begin
return X;
end Init_80;
function Init_132(Des: Description := Default_Description) return Calendar is
X: Calendar:=
(Columns => 6, Rows => 2, Space_Between_Columns => 2,
Left_Space => 1,
Weekday_Rep => Des.Weekday_Rep,
Month_Rep => Des.Month_Rep
);
begin
return X;
end Init_132;
end Printable_Calendar;</lang>
Now, the main program is really simple:
<lang Ada>with Printable_Calendar;
procedure Cal is
C: Printable_Calendar.Calendar := Printable_Calendar.Init_80;
begin
C.Print_Line_Centered("[reserved for Snoopy]");
C.New_Line;
C.Print(1969, "Nineteen-Sixty-Nine");
end Cal;</lang>
Here is the output:
[reserved for Snoopy]
Nineteen-Sixty-Nine
January February March
Mo Tu We Th Fr Sa So Mo Tu We Th Fr Sa So Mo Tu We Th Fr Sa So
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Mo Tu We Th Fr Sa So Mo Tu We Th Fr Sa So Mo Tu We Th Fr Sa So
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Mo Tu We Th Fr Sa So Mo Tu We Th Fr Sa So Mo Tu We Th Fr Sa So
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Mo Tu We Th Fr Sa So Mo Tu We Th Fr Sa So Mo Tu We Th Fr Sa So
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
To get a 132-character-wide output, you just have to replace "Init_80" by "Init_132" in the main program.
ALGOL 68
<lang algol68>#!/usr/local/bin/a68g --script #
PROC print calendar = (INT year, page width)VOID: (
[]STRING month names = (
"January","February","March","April","May","June",
"July","August","September","October","November","December"),
weekday names = ("Su","Mo","Tu","We","Th","Fr","Sa");
FORMAT weekday fmt = $g,n(UPB weekday names - LWB weekday names)(" "g)$;
# Juggle the calendar format to fit the printer/screen width # INT day width = UPB weekday names[1], day gap=1; INT month width = (day width+day gap) * UPB weekday names-1; INT month heading lines = 2; INT month lines = (31 OVER UPB weekday names+month heading lines+2); # +2 for head/tail weeks # INT year cols = (page width+1) OVER (month width+1); INT year rows = (UPB month names-1)OVER year cols + 1; INT month gap = (page width - year cols*month width + 1)OVER year cols; INT year width = year cols*(month width+month gap)-month gap; INT year lines = year rows*month lines;
MODE MONTHBOX = [month lines, month width]CHAR; MODE YEARBOX = [year lines, year width]CHAR;
INT week start = 1; # Sunday #
PROC days in month = (INT year, month)INT:
CASE month IN 31,
IF year MOD 4 EQ 0 AND year MOD 100 NE 0 OR year MOD 400 EQ 0 THEN 29 ELSE 28 FI,
31, 30, 31, 30, 31, 31, 30, 31, 30, 31
ESAC;
PROC day of week = (INT year, month, day)INT: ( # Day of the week by Zeller’s Congruence algorithm from 1887 # INT y := year, m := month, d := day, c; IF m <= 2 THEN m +:= 12; y -:= 1 FI; c := y OVER 100; y %*:= 100; (d - 1 + ((m + 1) * 26) OVER 10 + y + y OVER 4 + c OVER 4 - 2 * c) MOD 7 );
MODE SIMPLEOUT = UNION(STRING, []STRING, INT);
PROC cputf = (REF[]CHAR out, FORMAT fmt, SIMPLEOUT argv)VOID:( FILE f; STRING s; associate(f,s); putf(f, (fmt, argv)); out[:UPB s]:=s; close(f) );
PROC month repr = (INT year, month)MONTHBOX:( MONTHBOX month box; FOR line TO UPB month box DO month box[line,]:=" "* 2 UPB month box OD; STRING month name = month names[month];
# center the title # cputf(month box[1,(month width - UPB month name ) OVER 2+1:], $g$, month name); cputf(month box[2,], weekday fmt, weekday names);
INT first day := day of week(year, month, 1);
FOR day TO days in month(year, month) DO
INT line = (day+first day-week start) OVER UPB weekday names + month heading lines + 1;
INT char =((day+first day-week start) MOD UPB weekday names)*(day width+day gap) + 1;
cputf(month box[line,char:char+day width-1],$g(-day width)$, day)
OD;
month box
);
PROC year repr = (INT year)YEARBOX:(
YEARBOX year box;
FOR line TO UPB year box DO year box[line,]:=" "* 2 UPB year box OD;
FOR month row FROM 0 TO year rows-1 DO
FOR month col FROM 0 TO year cols-1 DO
INT month = month row * year cols + month col + 1;
IF month > UPB month names THEN
done
ELSE
INT month col width = month width+month gap;
year box[
month row*month lines+1 : (month row+1)*month lines,
month col*month col width+1 : (month col+1)*month col width-month gap
] := month repr(year, month)
FI
OD
OD;
done: year box
);
INT center = (year cols*(month width+month gap) - month gap - 1) OVER 2; INT indent = (page width - year width) OVER 2;
printf(( $n(indent + center - 9)k g l$, "[Insert Snoopy here]", $n(indent + center - 1)k 4d l$, year, $l$, $n(indent)k n(year width)(g) l$, year repr(year) ))
);
main: ( CO inspired by http://www.ee.ryerson.ca/~elf/hack/realmen.html
Real Programmers Don't Use PASCAL - Ed Post
Datamation, volume 29 number 7, July 1983
THE REAL PROGRAMMER'S NATURAL HABITAT
"Taped to the wall is a line-printer Snoopy calender for the year 1969." CO
INT mankind stepped on the moon = 1969,
line printer width = 80; # as at 1969! #
print calendar(mankind stepped on the moon, line printer width)
)</lang> Output:
[Insert Snoopy here]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
ALGOL W
which is a
This is pretty much the same as the Simula version.
The main differences are that the "for" loop counter in Algol W is a separate variable that only exists during execution of the loop
whereas in Simula the loop counter must be declared outside the loop and has its value changed as the loop executes
- hence some of the "for" loops have been replaced by "while" loops.
In Algol W, the condition of a "while" loop can be a block and the boolean "and" operator short circuits, which allow us to avoid the goto statements.
Also, the Algol W string type is fixed length, unlike the Simula text type.
<lang algolw>BEGIN
INTEGER WIDTH, YEAR; INTEGER COLS, LEAD, GAP; STRING(2) ARRAY WDAYS (0::6); RECORD MONTH ( STRING(9) MNAME; INTEGER DAYS, START_WDAY, AT_POS ); REFERENCE(MONTH) ARRAY MONTHS(0::11); WIDTH := 80; YEAR := 1969;
BEGIN
WDAYS(0) := "Su"; WDAYS(1) := "Mo"; WDAYS(2) := "Tu";
WDAYS(3) := "We"; WDAYS(4) := "Th"; WDAYS(5) := "Fr"; WDAYS(6) := "Sa";
MONTHS( 0) := MONTH(" January", 31, 0, 0 );
MONTHS( 1) := MONTH(" February", 28, 0, 0 );
MONTHS( 2) := MONTH(" March", 31, 0, 0 );
MONTHS( 3) := MONTH(" April", 30, 0, 0 );
MONTHS( 4) := MONTH(" May", 31, 0, 0 );
MONTHS( 5) := MONTH(" June", 30, 0, 0 );
MONTHS( 6) := MONTH(" July", 31, 0, 0 );
MONTHS( 7) := MONTH(" August", 31, 0, 0 );
MONTHS( 8) := MONTH("September", 30, 0, 0 );
MONTHS( 9) := MONTH(" October", 31, 0, 0 );
MONTHS(10) := MONTH(" November", 30, 0, 0 );
MONTHS(11) := MONTH(" December", 31, 0, 0 )
END;
BEGIN
PROCEDURE SPACE(INTEGER VALUE N);
BEGIN
WHILE N > 0 DO BEGIN
WRITEON(" "); N := N-1;
END
END SPACE;
PROCEDURE INIT_MONTHS;
BEGIN
INTEGER I;
IF YEAR REM 4 = 0 AND YEAR REM 100 NOT = 0 OR YEAR REM 400 = 0 THEN
DAYS(MONTHS(1)) := 29;
YEAR := YEAR-1;
START_WDAY(MONTHS(0))
:= (YEAR * 365 + YEAR DIV 4 - YEAR DIV 100 + YEAR DIV 400 + 1) REM 7;
FOR I := 1 STEP 1 UNTIL 12-1 DO
START_WDAY(MONTHS(I)) :=
(START_WDAY(MONTHS(I-1)) + DAYS(MONTHS(I-1))) REM 7;
COLS := (WIDTH + 2) DIV 22;
WHILE 12 REM COLS NOT = 0 DO
COLS := COLS-1;
GAP := IF COLS - 1 NOT = 0 THEN (WIDTH - 20 * COLS) DIV (COLS - 1) ELSE 0;
IF GAP > 4 THEN
GAP := 4;
LEAD := (WIDTH - (20 + GAP) * COLS + GAP + 1) DIV 2;
YEAR := YEAR+1
END INIT_MONTHS;
PROCEDURE PRINT_ROW(INTEGER VALUE ROW);
BEGIN
INTEGER C, I, FROM, UP_TO;
INTEGER PROCEDURE PREINCREMENT(INTEGER VALUE RESULT I);
BEGIN I := I+1; I
END PREINCREMENT;
INTEGER PROCEDURE POSTINCREMENT(INTEGER VALUE RESULT I);
BEGIN INTEGER PREV_VALUE;
PREV_VALUE := I; I := I+1; PREV_VALUE
END POSTINCREMENT;
FROM := ROW * COLS;
UP_TO := FROM + COLS;
SPACE(LEAD);
FOR C := FROM STEP 1 UNTIL UP_TO-1 DO BEGIN
I := 9 % LENGTH OF MNAME(MONTHS(C)) % ;
SPACE((20 - I) DIV 2);
WRITEON(MNAME(MONTHS(C)));
SPACE(20 - I - (20 - I) DIV 2 + (IF C = UP_TO - 1 THEN 0 ELSE GAP));
END;
WRITE();
SPACE(LEAD);
FOR C := FROM STEP 1 UNTIL UP_TO-1 DO BEGIN
FOR I := 0 STEP 1 UNTIL 7-1 DO BEGIN
WRITEON(WDAYS(I)); IF I NOT = 6 THEN WRITEON(" ")
END;
IF C < UP_TO - 1 THEN
SPACE(GAP)
ELSE
WRITE();
END;
WHILE BEGIN
C := FROM;
WHILE C < UP_TO AND AT_POS(MONTHS(C)) >= DAYS(MONTHS(C)) DO
C := C + 1;
C NOT = UP_TO
END DO BEGIN
SPACE(LEAD);
C := FROM;
WHILE C < UP_TO DO BEGIN
I := 0;
WHILE I < START_WDAY(MONTHS(C)) DO BEGIN
I := I + 1;
SPACE(3)
END;
WHILE POSTINCREMENT(I) < 7 AND AT_POS(MONTHS(C)) < DAYS(MONTHS(C)) DO BEGIN
WRITEON(I_W := 2, S_W := 0, PREINCREMENT(AT_POS(MONTHS(C))));
IF I < 7 OR C < UP_TO - 1 THEN
SPACE(1)
END;
WHILE POSTINCREMENT(I) <= 7 AND C < UP_TO-1 DO
SPACE(3);
IF C < UP_TO - 1 THEN
SPACE(GAP - 1);
START_WDAY(MONTHS(C)) := 0;
C := C + 1
END;
WRITE();
END;
WRITE()
END PRINT_ROW;
PROCEDURE PRINT_YEAR;
BEGIN
INTEGER ROW, STRLEN, Y;
STRLEN := 1;
Y := YEAR;
WHILE Y > 9 DO BEGIN Y := Y DIV 10; STRLEN := STRLEN + 1 END;
SPACE((WIDTH - STRLEN) DIV 2);
WRITEON(I_W := 1, YEAR);
WRITE(); WRITE();
WHILE ROW * COLS < 12 DO BEGIN
PRINT_ROW(ROW);
ROW := ROW+1
END
END PRINT_YEAR;
INIT_MONTHS;
PRINT_YEAR
END
END.</lang>
- Output:
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
AutoHotkey
<lang AutoHotkey>Calendar(Yr){ LastDay := [], Day := [] Titles = (ltrim ______January_________________February_________________March_______ _______April____________________May____________________June________ ________July___________________August_________________September_____ ______October_________________November________________December______ ) StringSplit, title, titles, `n Res := "________________________________" Yr "`r`n"
loop 4 { ; 4 Vertical Sections Day[1]:=Yr SubStr("0" A_Index*3 -2, -1) 01 Day[2]:=Yr SubStr("0" A_Index*3 -1, -1) 01 Day[3]:=Yr SubStr("0" A_Index*3 , -1) 01 Res .= "`r`n" title%A_Index% "`r`nSu Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa" loop , 6 { ; 6 Weeks max per month Week := A_Index, Res .= "`r`n" loop, 21 { ; 3 weeks times 7 days Mon := Ceil(A_Index/7), ThisWD := Mod(A_Index-1,7)+1 FormatTime, WD, % Day[Mon], WDay FormatTime, dd, % Day[Mon], dd if (WD>ThisWD) { Res .= "__ " continue } dd := ((Week>3) && dd <10) ? "__" : dd, Res .= dd " ", LastDay[Mon] := Day[Mon], Day[Mon] +=1, Days Res .= ((wd=7) && A_Index < 21) ? "___" : "" FormatTime, dd, % Day[Mon], dd } } Res .= "`r`n" } StringReplace, Res, Res,_,%A_Space%, all Res:=RegExReplace(Res,"`am)(^|\s)\K0", " ") return res }</lang> Examples:<lang AutoHotkey>Gui, font,s8, COURIER Gui, add, edit, vYr w40 r1 Limit4 Number, 1969 Gui, add, edit, vEdit2 w580 r38 Gui, Add, Button, Default Hidden gSubmit Gui, show
Submit: Gui, Submit, NoHide GuiControl,, Edit2, % Calendar(Yr) return
GuiEscape: GuiClose: ExitApp return</lang>
Outputs:
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
AutoIt
<lang AutoIt>
- include <Date.au3>
- Set the count of characters in each line, minimum is 20 - one month.
Global $iPrintSize = 132
- Set the count of months, you want to print side by side. With "0" it calculates automatically.
- The number will corrected, if it not allowed to print in an rectangle.
- If your print size is to small for given count, it will set back to automatically calculation.
Global $iSideBySide = 3
- Set the count of spaces between months.
Global $iSpace = 4
_CreateCalendar( 1969 )
Func _CreateCalendar($_iYear)
Local $aMon[12] = [' January ', ' February ', ' March ', _
' April ', ' May ', ' June ', _
' July ', ' August ', ' September ', _
' October ', ' November ', ' December ']
Local $sHead = 'Mo Tu We Th Fr Sa Su'
Local $aDaysInMonth[12] = [31,28,31,30,31,30,31,31,30,31,30,31]
If _DateIsLeapYear($_iYear) Then $aDaysInMonth[1] = 29
; == assign date in weekday table for the whole year Local $aAllDaysInMonth[6][7][12] ; [ lines ][ weekdays ][ months ] Local $iDay = 1, $iShift For $i = 1 To 12 $iShift = _DateToDayOfWeekISO($_iYear, $i, 1) -1 For $j = 0 To 5 For $k = $iShift To 6 $aAllDaysInMonth[$j][$k][$i-1] = $iDay $iDay += 1 If $iDay > $aDaysInMonth[$i-1] Then ExitLoop(2) Next $iShift = 0 Next $iDay = 1 Next
; == check given side by side count, calculate if needed If $iSideBySide > 0 Then If $iPrintSize < ($iSideBySide *(20 +$iSpace) -$iSpace) Then $iSideBySide = 0 EndIf Switch $iSideBySide Case 0 $iSideBySide = Int($iPrintSize /(20 +$iSpace)) If $iPrintSize < 20 Then Return _PrintLine('Escape: Size Error') If $iPrintSize < (20 +$iSpace) Then $iSideBySide = 1 Case 5 $iSideBySide = 4 Case 7 To 11 $iSideBySide = 6 EndSwitch
; == create space string Local $sSpace = For $i = 1 To $iSpace $sSpace &= ' ' Next
; == print header _PrintLine(@LF) _PrintLine('[ here is Snoopy ]', @LF) _PrintLine(StringRegExpReplace($_iYear, '(\d)(\d)(\d)(\d)', '$1 $2 $3 $4'), @LF)
; == create data for each line, in dependence to count of months in one line Local $sLine, $iRight, $sTmp1, $sTmp2 For $n = 0 To 12 /$iSideBySide -1 $sTmp1 = $sTmp2 = For $z = 0 To $iSideBySide -1 $sTmp1 &= $aMon[$iSideBySide *$n+$z] & $sSpace $sTmp2 &= $sHead & $sSpace Next _PrintLine(StringTrimRight($sTmp1, $iSpace)) _PrintLine(StringTrimRight($sTmp2, $iSpace)) For $j = 0 To 5 $sLine = For $i = 1 To $iSideBySide For $k = 0 To 6 $iRight = 3 If $k = 0 Then $iRight = 2 $sLine &= StringRight(' ' & $aAllDaysInMonth[$j][$k][$iSideBySide*$n+$i-1], $iRight) Next If $i < $iSideBySide Then $sLine &= $sSpace Next _PrintLine($sLine) Next Next EndFunc ;==>_CreateCalendar
Func _PrintLine($_sLine, $_sLF=) Local $iLen = StringLen($_sLine) Local $sSpace = , $sLeft = For $i = 1 To $iPrintSize-1 $sSpace &= ' ' Next If $iLen < $iPrintSize Then $sLeft = StringLeft($sSpace, Int(($iPrintSize-$iLen)/2)) ConsoleWrite($sLeft & $_sLine & $_sLF & @LF) EndFunc ;==>_PrintLine </lang> Output
[ here is Snoopy ]
1 9 6 9
January February March
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
AWK
<lang AWK>
Works with Gnu awk version 3.1.5 and with BusyBox v1.20.0.git awk To change the output width, change the value assigned to variable pagewide
- !/bin/gawk -f
BEGIN{
wkdays = "Su Mo Tu We Th Fr Sa" pagewide = 80 blank=" " for (i=1; i<pagewide; i++) blank = blank " " # month name accessed as substr(month,num*10,10) # where num is number of month, 1-12 month= " January February March April " month= month " May June July August " month= month " September October November December " # table of days per month accessed as substr(days,2*month,2) days =" 312831303130313130313031" line1 = "" line2 = "" line3 = "" line4 = "" line5 = "" line6 = "" line7 = "" line8 = ""
- print " year: " year " starts on: " dow(year)
}
function center(text, half) {
half = (pagewide - length(text))/2 return substr(blank,1,half) text substr(blank,1,half) }
function min(a,b) {
if (a < b) return a else return b }
function makewk (fst,lst,day, i,wstring ){
wstring=""
for (i=1;i<day;i++) wstring=wstring " "
for (i=fst;i<=lst;i++) wstring=wstring sprintf("%2d ",i)
return substr(wstring " ",1,20)
}
function dow (year, y){
y=year y= (y*365+int(y/4) - int(y/100) + int(y/400) +1) %7
- leap year adjustment
leap = 0 if (year % 4 == 0) leap = 1 if (year % 100 == 0) leap = 0 if (year % 400 == 0) leap = 1 y = y - leap if (y==-1) y=6 if (y==0) y=7 return (y) }
function prmonth (nmonth, newdow,monsize ){
line1 = line1 " " (substr(month,10*nmonth,10)) " " line2 = line2 (wkdays) " " line3 = line3 (makewk(1,8-newdow,newdow)) " " line4 = line4 (makewk(9-newdow,15-newdow,1)) " " line5 = line5 (makewk(16-newdow,22-newdow,1)) " " line6 = line6 (makewk(23-newdow,29-newdow,1)) " " line7 = line7 (makewk(30-newdow,min(monsize,36-newdow),1)) " " line8 = line8 (makewk(37-newdow,monsize,1)) " "
if (length(line3) + 22 > pagewide) {
print center(line1) print center(line2) print center(line3) print center(line4) print center(line5) print center(line6) print center(line7) print center(line8) line1 = "" line2 = "" line3 = "" line4 = "" line5 = "" line6 = "" line7 = "" line8 = "" }
} /q/{
exit }
{
monsize=substr(days,2*1,2)
newdow=dow($1)
print center("[ picture of Snoopy goes here ]")
print center(sprintf("%d",$1) )
# January - December
for (i=1; i<13; i++) {
prmonth(i,newdow,monsize)
newdow=(monsize+newdow) %7
if (newdow == 0) newdow = 7
monsize=substr(days,2+2*i,2)
if (leap == 1 && monsize == 28) monsize = 29
}
}
</lang> Output:
[ picture of Snoopy goes here ]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
BaCon
Choosing 132 character output. <lang freebasic>DECLARE month$[] = { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" } DECLARE month[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } year$ = "1969" ' Leap year INCR month[1], IIF(MOD(VAL(year$), 4) = 0 OR MOD(VAL(year$), 100) = 0 AND MOD(VAL(year$), 400) <> 0, 1, 0) PRINT ALIGN$("[SNOOPY HERE]", 132, 2) PRINT ALIGN$(year$, 132, 2) FOR nr = 0 TO 11
row = 3
GOTOXY 1+(nr %6)*22, row+(nr/6)*9
PRINT ALIGN$(month$[nr], 21, 2);
INCR row
GOTOXY 1+(nr %6)*22, row+(nr/6)*9
PRINT ALIGN$("Mo Tu We Th Fr Sa Su", 21, 2);
INCR row
' Each day
FOR day = 1 TO month[nr]
' Zeller
J = VAL(LEFT$(year$, 2))
K = VAL(MID$(year$, 3, 2))
m = nr+1
IF nr < 2 THEN
INCR m, 12
DECR K
END IF
h = (day + ((m+1)*26)/10 + K + (K/4) + (J/4) + 5*J)
daynr = MOD(h, 7) - 2
IF daynr < 0 THEN INCR daynr, 7
IF daynr = 0 AND day > 1 THEN INCR row
GOTOXY 1+(nr %6)*22+daynr*3, row+(nr/6)*9
PRINT day;
NEXT
NEXT</lang>
- Output:
[SNOOPY HERE]
1969
January February March April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 1 2 3 4 5 6 1 2 3 4 1
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
31 30
July August September October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7 1 2 3 4 5 1 2 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14 6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21 13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28 20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30 27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
Batch File
<lang dos>::Calender Task from Rosetta Code Wiki
- Batch File Implementation
@echo off setlocal enabledelayedexpansion
%== Set a valid year [will not be validated] ==% set y=1969
%== Set the variables for months (feb_l=the normal 28 days) ==% set jan_l=31&set apr_l=30 set mar_l=31&set jun_l=30 set may_l=31&set sep_l=30 set jul_l=31&set nov_l=30 set aug_l=31&set feb_l=28 set oct_l=31 set dec_l=31
%== Compute day for first day of the year ==% set /a d=(y/4+y)-(y/100-y/400)
%== Check if that year is a leap year ==% set /a "op1=y%%4","op2=y%%100","op3=y%%400" if not "%op1%"=="0" (goto :no_leap) if not "%op2%"=="0" (goto :yes_leap) if not "%op3%"=="0" (goto :no_leap) :yes_leap %== Ooops... Leap year. Change feb_l to 29. ==% set feb_l=29 set/a d-=1 :no_leap
%== Compute weekday of the first day... ==% set /a d%%=7
%== Generate everything that's inside the calendar ==% for %%a in (jan feb mar apr may jun jul aug sep oct nov dec) do ( set %%a= set chars_added=0 for /l %%b in (1,1,!d!) do (set "%%a=!%%a! "&set /a chars_added+=3) for /l %%c in (1,1,!%%a_l!) do ( if %%c lss 10 (set "%%a=!%%a! %%c ") else (set "%%a=!%%a!%%c ") set /a chars_added+=3 ) for /l %%d in (!chars_added!,1,124) do set "%%a=!%%a! " set /a d=^(d+%%a_l^)%%7 )
%== Display the calendar ==% cls echo. echo. [SNOOPY] echo. echo. YEAR = %y% echo. echo. January February March echo. Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa echo. %jan:~0,20% %feb:~0,20% %mar:~0,20% echo. %jan:~21,20% %feb:~21,20% %mar:~21,20% echo. %jan:~42,20% %feb:~42,20% %mar:~42,20% echo. %jan:~63,20% %feb:~63,20% %mar:~63,20% echo. %jan:~84,20% %feb:~84,20% %mar:~84,20% echo. %jan:~105% %feb:~105% %mar:~105% echo. echo. April May June echo. Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa echo. %apr:~0,20% %may:~0,20% %jun:~0,20% echo. %apr:~21,20% %may:~21,20% %jun:~21,20% echo. %apr:~42,20% %may:~42,20% %jun:~42,20% echo. %apr:~63,20% %may:~63,20% %jun:~63,20% echo. %apr:~84,20% %may:~84,20% %jun:~84,20% echo. %apr:~105% %may:~105% %jun:~105% echo. echo. July August September echo. Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa echo. %jul:~0,20% %aug:~0,20% %sep:~0,20% echo. %jul:~21,20% %aug:~21,20% %sep:~21,20% echo. %jul:~42,20% %aug:~42,20% %sep:~42,20% echo. %jul:~63,20% %aug:~63,20% %sep:~63,20% echo. %jul:~84,20% %aug:~84,20% %sep:~84,20% echo. %jul:~105% %aug:~105% %sep:~105% echo. echo. October November December echo. Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa echo. %oct:~0,20% %nov:~0,20% %dec:~0,20% echo. %oct:~21,20% %nov:~21,20% %dec:~21,20% echo. %oct:~42,20% %nov:~42,20% %dec:~42,20% echo. %oct:~63,20% %nov:~63,20% %dec:~63,20% echo. %oct:~84,20% %nov:~84,20% %dec:~84,20% echo. %oct:~105% %nov:~105% %dec:~105% echo. pause endlocal</lang>
- Output:
[SNOOPY]
YEAR = 1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Press any key to continue . . .
BBC BASIC
The day and month names are in the language for which the PC is configured. <lang bbcbasic> INSTALL @lib$+"DATELIB"
VDU 23,22,640;570;8,15,16,128
year% = 1969
PRINT TAB(38); year%
DIM dom%(2), mjd%(2), dim%(2)
FOR day% = 1 TO 7
days$ += LEFT$(FN_date$(FN_mjd(day%, 1, 1905), "ddd"), 2) + " "
NEXT
FOR month% = 1 TO 10 STEP 3
PRINT
FOR col% = 0 TO 2
mjd%(col%) = FN_mjd(1, month% + col%, year%)
month$ = FN_date$(mjd%(col%), "MMMM")
PRINT TAB(col%*24 + 16 - LEN(month$)/2) month$;
NEXT
FOR col% = 0 TO 2
PRINT TAB(col%*24 + 6) days$;
dim%(col%) = FN_dim(month% + col%, year%)
NEXT
dom%() = 1
col% = 0
REPEAT
dow% = FN_dow(mjd%(col%))
IF dom%(col%)<=dim%(col%) THEN
PRINT TAB(col%*24 + dow%*3 + 6); dom%(col%);
dom%(col%) += 1
mjd%(col%) += 1
ENDIF
IF dow%=6 OR dom%(col%)>dim%(col%) col% = (col% + 1) MOD 3
UNTIL dom%(0)>dim%(0) AND dom%(1)>dim%(1) AND dom%(2)>dim%(2)
PRINT
NEXT
</lang> Output:
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Befunge
This is quite closely based on the C sample, although the centering calculation has been adjusted to fix an off-by-one error, and the months have been made a constant height, regardless of how much space they require, to try and produce a more balanced layout.
The year is read from stdin, and the width is specified by the first value on the stack (set to 80 - "P" - in the current implementation).
<lang befunge>"P"00p&>:::4%!\"d"%*\45*:*%!+!!65*+31p:1-:::"I"5**\4/+\"d"/-\45*:*/+1+7%:0v J!F?M!A M!J J!A!S O!N D!SaFrThWeTuMoSuvp01:_1#!-#%:#\>#+6<v-2g1+1g01p1p01:<
January February March April >:45**00g\-\1-:v:<<6>+7%:10g2+:38*\`| May June July August v02-1:+4*-4\`\4:/_$:^^:/*2+92+2:g00$$$<
September October November December>p:45*+10g*\--2/00g4-2/>:#,1#*-#8\#4_$v >20g>:#,1#*-#8\#4_$6"$S" v. .vp040\$_4#!8#\*#-,#1>#:<+5g03g01:,,:+55<0.p03< ^_v#:-1$_v#!:,*84,g1+1,< < ^ >::4%9*40g:8`!#v_$$$1+v^+g02_#v$#,$#+5<^_v#`\< -#8\#4_$7>1-:2*64*+:1g>^ ^ ^,g+2/4\+p04+1:<>1#\-#<:66+\^ >>$10g30g>:#,1#* > > $$55+,6>>40p:10g30g>:#,1#*-#8\#4_$>\:2*:1+1g2-50p1g640g-7*1+\-7v v@,<6 2:+g01$_55+,^ > > > > #^>#g>#0>#2_v v*2!!\%+55:\/+55:**`0\!`g05:::\< >2-^^ ->:> >#^>#<>#<^#!:-1g04$$ < < < < < >4+8*+\:!!2*4+8*+,,48*,1+\1-:>#^_$$1+\1</lang>
C
With arbitrary display width (>= 20 though) and auto spacing. <lang C>#include <stdio.h>
- include <stdlib.h>
- include <string.h>
int width = 80, year = 1969; int cols, lead, gap;
const char *wdays[] = { "Su", "Mo", "Tu", "We", "Th", "Fr", "Sa" }; struct months { const char *name; int days, start_wday, at; } months[12] = { { "January", 31, 0, 0 }, { "February", 28, 0, 0 }, { "March", 31, 0, 0 }, { "April", 30, 0, 0 }, { "May", 31, 0, 0 }, { "June", 30, 0, 0 }, { "July", 31, 0, 0 }, { "August", 31, 0, 0 }, { "September", 30, 0, 0 }, { "October", 31, 0, 0 }, { "November", 30, 0, 0 }, { "December", 31, 0, 0 } };
void space(int n) { while (n-- > 0) putchar(' '); }
void init_months() { int i;
if ((!(year % 4) && (year % 100)) || !(year % 400)) months[1].days = 29;
year--; months[0].start_wday = (year * 365 + year/4 - year/100 + year/400 + 1) % 7;
for (i = 1; i < 12; i++) months[i].start_wday = (months[i-1].start_wday + months[i-1].days) % 7;
cols = (width + 2) / 22; while (12 % cols) cols--; gap = cols - 1 ? (width - 20 * cols) / (cols - 1) : 0; if (gap > 4) gap = 4; lead = (width - (20 + gap) * cols + gap + 1) / 2;
year++;
}
void print_row(int row) { int c, i, from = row * cols, to = from + cols; space(lead); for (c = from; c < to; c++) { i = strlen(months[c].name); space((20 - i)/2); printf("%s", months[c].name); space(20 - i - (20 - i)/2 + ((c == to - 1) ? 0 : gap)); } putchar('\n');
space(lead); for (c = from; c < to; c++) { for (i = 0; i < 7; i++) printf("%s%s", wdays[i], i == 6 ? "" : " "); if (c < to - 1) space(gap); else putchar('\n'); }
while (1) { for (c = from; c < to; c++) if (months[c].at < months[c].days) break; if (c == to) break;
space(lead); for (c = from; c < to; c++) { for (i = 0; i < months[c].start_wday; i++) space(3); while(i++ < 7 && months[c].at < months[c].days) { printf("%2d", ++months[c].at); if (i < 7 || c < to - 1) putchar(' '); } while (i++ <= 7 && c < to - 1) space(3); if (c < to - 1) space(gap - 1); months[c].start_wday = 0; } putchar('\n'); } putchar('\n'); }
void print_year() { int row; char buf[32]; sprintf(buf, "%d", year); space((width - strlen(buf)) / 2); printf("%s\n\n", buf); for (row = 0; row * cols < 12; row++) print_row(row); }
int main(int c, char **v) { int i, year_set = 0; for (i = 1; i < c; i++) { if (!strcmp(v[i], "-w")) { if (++i == c || (width = atoi(v[i])) < 20) goto bail; } else if (!year_set) { if (!sscanf(v[i], "%d", &year) || year <= 0) year = 1969; year_set = 1; } else goto bail; }
init_months(); print_year(); return 0;
bail: fprintf(stderr, "bad args\nUsage: %s year [-w width (>= 20)]\n", v[0]); exit(1); }</lang>
C#
An attempt to abuse the DateTime class for all static information. In the event that the number of days and months changes, so long as the DateTime class is updated accordingly, this should still print properly. It also abuses iterators to allow for a concise month printing method, but with the ability to still print x months per line.
<lang csharp>
using System; using System.Collections.Generic; using System.Linq; using System.Text;
namespace CalendarStuff {
class Program
{
static void Main(string[] args)
{
Console.WindowHeight = 46;
Console.Write(buildMonths(new DateTime(1969, 1, 1)));
Console.Read();
}
private static string buildMonths(DateTime date)
{
StringBuilder sb = new StringBuilder();
sb.AppendLine(center("[Snoop]", 24 * 3));
sb.AppendLine();
sb.AppendLine(center(date.Year.ToString(), 24 * 3));
List<DateTime> dts = new List<DateTime>();
while (true)
{
dts.Add(date);
if (date.Year != ((date = date.AddMonths(1)).Year))
{
break;
}
}
var jd = dts.Select(a => buildMonth(a).GetEnumerator()).ToArray();
int sCur=0;
while (sCur<dts.Count)
{
sb.AppendLine();
int curMonth=0;
var j = jd.Where(a => curMonth++ >= sCur && curMonth - 1 < sCur + 3).ToArray(); //grab the next 3
sCur += j.Length;
bool breakOut = false;
while (!breakOut)
{
int inj = 1;
foreach (var cd in j)
{
if (cd.MoveNext())
{
sb.Append((cd.Current.Length == 21 ? cd.Current : cd.Current.PadRight(21, ' ')) + " ");
}
else
{
sb.Append("".PadRight(21, ' ') + " ");
breakOut = true;
}
if (inj++ % 3 == 0) sb.AppendLine();
}
}
}
return sb.ToString();
}
private static IEnumerable<string> buildMonth(DateTime date)
{
yield return center(date.ToString("MMMM"),7*3);
var j = DateTime.DaysInMonth(date.Year, date.Month);
yield return Enum.GetNames(typeof(DayOfWeek)).Aggregate("", (current, result) => current + (result.Substring(0, 2).ToUpper() + " "));
string cur = "";
int total = 0;
foreach (var day in Enumerable.Range(-((int)date.DayOfWeek),j + (int)date.DayOfWeek))
{
cur += (day < 0 ? " " : ((day < 9 ? " " : "") + (day + 1))) +" ";
if (total++ > 0 && (total ) % 7 == 0)
{
yield return cur;
cur = "";
}
}
yield return cur;
}
private static string center(string s, int len)
{
return (s.PadLeft((len - s.Length) / 2 + s.Length, ' ').PadRight((len), ' '));
}
}
}
</lang>
C++
<lang cpp>
- include <windows.h>
- include <iostream>
//-------------------------------------------------------------------------------------------------- using namespace std;
//--------------------------------------------------------------------------------------------------
class calender
{
public:
void drawCalender( int y )
{
year = y; for( int i = 0; i < 12; i++ ) firstdays[i] = getfirstday( i );
isleapyear(); build();
}
private:
void isleapyear()
{
isleap = false;
if( !( year % 4 ) ) { if( year % 100 ) isleap = true; else if( !( year % 400 ) ) isleap = true; }
}
int getfirstday( int m )
{
int y = year;
int f = y + 1 + 3 * m - 1; m++; if( m < 3 ) y--; else f -= int( .4 * m + 2.3 );
f += int( y / 4 ) - int( ( y / 100 + 1 ) * 0.75 ); f %= 7;
return f;
}
void build()
{
int days[] = { 31, isleap ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; int lc = 0, lco = 0, ystr = 7, start = 2, fd = 0, m = 0; HANDLE h = GetStdHandle( STD_OUTPUT_HANDLE ); COORD pos = { 0, ystr }; draw();
for( int i = 0; i < 4; i++ ) { for( int j = 0; j < 3; j++ ) { int d = firstdays[fd++], dm = days[m++]; pos.X = d * 3 + start; SetConsoleCursorPosition( h, pos );
for( int dd = 0; dd < dm; dd++ ) { if( dd < 9 ) cout << 0 << dd + 1 << " "; else cout << dd + 1 << " ";
pos.X += 3; if( pos.X - start > 20 ) { pos.X = start; pos.Y++; SetConsoleCursorPosition( h, pos ); } }
start += 23; pos.X = start; pos.Y = ystr; SetConsoleCursorPosition( h, pos ); } ystr += 9; start = 2; pos.Y = ystr; }
}
void draw()
{
system( "cls" ); cout << "+--------------------------------------------------------------------+" << endl; cout << "| [SNOOPY] |" << endl; cout << "| |" << endl; cout << "| == " << year << " == |" << endl; cout << "+----------------------+----------------------+----------------------+" << endl; cout << "| JANUARY | FEBRUARY | MARCH |" << endl; cout << "| SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "+----------------------+----------------------+----------------------+" << endl; cout << "| APRIL | MAY | JUNE |" << endl; cout << "| SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "+----------------------+----------------------+----------------------+" << endl; cout << "| JULY | AUGUST | SEPTEMBER |" << endl; cout << "| SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "+----------------------+----------------------+----------------------+" << endl; cout << "| OCTOBER | NOVEMBER | DECEMBER |" << endl; cout << "| SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "| | | |" << endl; cout << "+----------------------+----------------------+----------------------+" << endl;
}
int firstdays[12], year; bool isleap;
}; //-------------------------------------------------------------------------------------------------- int main( int argc, char* argv[] ) {
int y; calender cal;
while( true )
{
system( "cls" ); cout << "Enter the year( yyyy ) --- ( 0 to quit ): "; cin >> y; if( !y ) return 0;
cal.drawCalender( y ); cout << endl << endl << endl << endl << endl << endl << endl << endl;
system( "pause" );
} return 0;
} //-------------------------------------------------------------------------------------------------- </lang> Output:
+--------------------------------------------------------------------+ | [SNOOPY] | | | | == 1969 == | +----------------------+----------------------+----------------------+ | JANUARY | FEBRUARY | MARCH | | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | | 01 02 03 04 | 01 | 01 | | 05 06 07 08 09 10 11 | 02 03 04 05 06 07 08 | 02 03 04 05 06 07 08 | | 12 13 14 15 16 17 18 | 09 10 11 12 13 14 15 | 09 10 11 12 13 14 15 | | 19 20 21 22 23 24 25 | 16 17 18 19 20 21 22 | 16 17 18 19 20 21 22 | | 26 27 28 29 30 31 | 23 24 25 26 27 28 | 23 24 25 26 27 28 29 | | | | 30 31 | +----------------------+----------------------+----------------------+ | APRIL | MAY | JUNE | | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | | 01 02 03 04 05 | 01 02 03 | 01 02 03 04 05 06 07 | | 06 07 08 09 10 11 12 | 04 05 06 07 08 09 10 | 08 09 10 11 12 13 14 | | 13 14 15 16 17 18 19 | 11 12 13 14 15 16 17 | 15 16 17 18 19 20 21 | | 20 21 22 23 24 25 26 | 18 19 20 21 22 23 24 | 22 23 24 25 26 27 28 | | 27 28 29 30 | 25 26 27 28 29 30 31 | 29 30 | | | | | +----------------------+----------------------+----------------------+ | JULY | AUGUST | SEPTEMBER | | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | | 01 02 03 04 05 | 01 02 | 01 02 03 04 05 06 | | 06 07 08 09 10 11 12 | 03 04 05 06 07 08 09 | 07 08 09 10 11 12 13 | | 13 14 15 16 17 18 19 | 10 11 12 13 14 15 16 | 14 15 16 17 18 19 20 | | 20 21 22 23 24 25 26 | 17 18 19 20 21 22 23 | 21 22 23 24 25 26 27 | | 27 28 29 30 31 | 24 25 26 27 28 29 30 | 28 29 30 | | | 31 | | +----------------------+----------------------+----------------------+ | OCTOBER | NOVEMBER | DECEMBER | | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | SU MO TU WE TH FR SA | | 01 02 03 04 | 01 | 01 02 03 04 05 06 | | 05 06 07 08 09 10 11 | 02 03 04 05 06 07 08 | 07 08 09 10 11 12 13 | | 12 13 14 15 16 17 18 | 09 10 11 12 13 14 15 | 14 15 16 17 18 19 20 | | 19 20 21 22 23 24 25 | 16 17 18 19 20 21 22 | 21 22 23 24 25 26 27 | | 26 27 28 29 30 31 | 23 24 25 26 27 28 29 | 28 29 30 31 | | | 30 | | +----------------------+----------------------+----------------------+
Clojure
Java interop version.
Does not use any external dependencies to demonstrate the java interop.
Requires "join" from "clojure.string".
Written by Kyuvi.
<lang clojure>require '[clojure.string :only [join] :refer [join]])
(def day-row "Su Mo Tu We Th Fr Sa")
(def col-width (count day-row))
(defn month-to-word "Translate a month from 1 to 12 into its word representation" [month] ((vec (.getMonths (new java.text.DateFormatSymbols))) month))
(defn month [date]
(.get date (java.util.Calendar/MONTH)))
(defn total-days-in-month [date]
(.getActualMaximum date (java.util.Calendar/DAY_OF_MONTH)))
(defn first-weekday [date]
(.get date (java.util.Calendar/DAY_OF_WEEK)))
(defn center-string
" Return a string that is WIDTH long with STRING centered in it "
[string width]
(let [pad (- width (count string))
lpad (quot pad 2)
rpad (- pad (quot pad 2))]
(if (<= pad 0)
string
(str (apply str (repeat lpad " ")) ; remove vector
string
(apply str (repeat rpad " "))))))
(defn calc-columns
"Calcutate the number of columns given the width in CHARACTERS and the
MARGIN SIZE"
[characters margin-size]
(loop [cols 0 excess characters ]
(if (>= excess (count day-row))
(recur (inc cols) (- excess (+ margin-size (count day-row))))
cols)))
(defn month-vector
"Returns a vector with the month name, day-row and days formatted for printing"
[date]
(vec (concat
(vector (center-string (month-to-word (month date)) col-width))
(vector day-row)
(map #(join " " %)
(partition 7
(concat
(repeat (dec (first-weekday date)) " ")
(map #(format "%2s" %)
(range 1 (inc (total-days-in-month date))))
(repeat (- 42 (total-days-in-month date)
(dec (first-weekday date)) ) " ")))))))
(defn year-vector
"Retuns a 2d vector of all the months in the year of DATE"
[date]
(loop [m [] c (month date)]
(if (= c 11 )
(conj m (month-vector date))
(recur (conj m (month-vector date))
(do (.add date (java.util.Calendar/MONTH ) 1)
(month date))))))
(defn print-months
"prints the months to standard output with NCOLS and MARGIN "
[ v ncols margin]
(doseq [r (range (Math/ceil (/ 12 ncols)))]
(do (doseq [i (range 8)]
(do (doseq [c (range (* r ncols) (* (+ r 1) ncols)) :while (< c 12)]
(printf (str (apply str (repeat margin " ")) "%s") (get-in v [c i])))
(println)))
(println))))
(defn print-cal
"(print-cal [year [width [margin]]])
Print out the calendar for a given YEAR with WIDTH characters wide
with MARGIN spaces between months."
([]
(print-cal 1969 80 2))
([year]
(print-cal year 80 2))
([year width]
(print-cal year width 2))
([year width margin]
(assert (>= width (count day-row)) "width should be more than 20")
(assert (>= margin 0) "margin needs to be more than 0")
(let [date (new java.util.GregorianCalendar year 0 1)
column-count (calc-columns width margin)
total-size (+ (* column-count (count day-row))
(* (dec column-count) margin))]
(println (center-string "[Snoopy Picture]" total-size))
(println (center-string (str year) total-size))
(println)
(print-months (year-vector date) column-count margin))))</lang>
user=> (print-cal)
[Snoopy Picture]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
nil
COBOL
the program calls subroutine DATE2DOW to convert any YYYY-MM-DD to Day of Week (1=Sunday). the group names WS-CFGN and WS-CFGW may be moved to WS-CFG to use narrow or wide print line size respectively. <lang COBOL>
IDENTIFICATION DIVISION.
PROGRAM-ID. CALEND.
ENVIRONMENT DIVISION.
INPUT-OUTPUT SECTION.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 WS-DAY-NAMES-DEF.
03 FILLER PIC X(09) VALUE 'SUNDAY '.
03 FILLER PIC X(09) VALUE 'MONDAY '.
03 FILLER PIC X(09) VALUE 'TUESDAY '.
03 FILLER PIC X(09) VALUE 'WEDNESDAY'.
03 FILLER PIC X(09) VALUE 'THURSDAY '.
03 FILLER PIC X(09) VALUE 'FRIDAY '.
03 FILLER PIC X(09) VALUE 'SATURDAY '.
01 FILLER REDEFINES WS-DAY-NAMES-DEF.
03 WS-DAY-NAME PIC X(09) OCCURS 07 TIMES.
01 WS-MTH-INFO-DEF.
03 FILLER PIC X(11) VALUE 'JANUARY 31'.
03 FILLER PIC X(11) VALUE 'FEBRUARY 28'.
03 FILLER PIC X(11) VALUE 'MARCH 31'.
03 FILLER PIC X(11) VALUE 'APRIL 30'.
03 FILLER PIC X(11) VALUE 'MAY 31'.
03 FILLER PIC X(11) VALUE 'JUNE 30'.
03 FILLER PIC X(11) VALUE 'JULY 31'.
03 FILLER PIC X(11) VALUE 'AUGUST 31'.
03 FILLER PIC X(11) VALUE 'SEPTEMBER30'.
03 FILLER PIC X(11) VALUE 'OCTOBER 31'.
03 FILLER PIC X(11) VALUE 'NOVEMBER 30'.
03 FILLER PIC X(11) VALUE 'DECEMBER 31'.
01 FILLER REDEFINES WS-MTH-INFO-DEF.
03 WS-MTH-INFO-TABLE OCCURS 12 TIMES.
05 WS-MTH-INFO-NAME PIC X(09).
05 WS-MTH-INFO-DAYS PIC 9(02).
01 WS-MTH-AREA.
03 WS-MTH-DD PIC S99.
03 WS-DAY1 PIC 9.
03 WS-DAYS PIC 99.
03 WS-DD PIC 9.
03 WS-WK PIC 9.
03 WS-MM PIC 99.
03 WS-QQ PIC 99.
03 WS-MTH-MONTH OCCURS 12 TIMES.
05 WS-MTH-WEEK OCCURS 6 TIMES.
07 WS-DAY-FLD OCCURS 7 TIMES.
09 WS-DAY PIC ZZ.
01 INPDATE-RECORD.
05 INPD-YEAR PIC 9(04).
05 FILLER PIC X(01).
05 INPD-MONTH PIC 9(02).
05 FILLER PIC X(01).
05 INPD-DAY PIC 9(02).
01 WMS-DOW PIC 9(01).
01 WS-PRT PIC X(132).
01 WS-COL PIC 9(03) VALUE 0.
01 WS-PP PIC 9(03) VALUE 0.
01 WS-CFGN.
03 FILLER PIC 9(03) VALUE 80.
03 FILLER PIC 9(02) VALUE 5.
03 FILLER PIC 9(01) VALUE 1.
03 FILLER PIC 9(02) VALUE 5.
03 FILLER PIC 9(01) VALUE 2.
01 WS-CFGW.
03 FILLER PIC 9(03) VALUE 120.
03 FILLER PIC 9(02) VALUE 10.
03 FILLER PIC 9(01) VALUE 2.
03 FILLER PIC 9(02) VALUE 10.
03 FILLER PIC 9(01) VALUE 3.
01 WS-CFG.
03 WS-LS PIC 9(03) VALUE 120.
03 WS-LMAR PIC 9(02) VALUE 10.
03 WS-SPBD PIC 9(01) VALUE 2.
03 WS-SPBC PIC 9(02) VALUE 10.
03 WS-DNMW PIC 9(01) VALUE 3.
PROCEDURE DIVISION.
MOVE '1969-01-01' TO INPDATE-RECORD
MOVE WS-CFGN TO WS-CFG
IF (FUNCTION MOD ( INPD-YEAR , 400 ) = 0
OR (FUNCTION MOD ( INPD-YEAR , 4 ) = 0
AND
FUNCTION MOD ( INPD-YEAR , 100 ) NOT = 0))
MOVE 29 TO WS-MTH-INFO-DAYS (02)
ELSE
MOVE 28 TO WS-MTH-INFO-DAYS (02)
END-IF
PERFORM VARYING WS-MM FROM 1 BY +1
UNTIL WS-MM > 12
MOVE WS-MM TO INPD-MONTH
CALL 'DATE2DOW' USING INPDATE-RECORD, WMS-DOW
COMPUTE WS-MTH-DD = 1 - WMS-DOW
COMPUTE WS-DAYS = WS-MTH-INFO-DAYS (INPD-MONTH)
PERFORM VARYING WS-WK FROM 1 BY +1
UNTIL WS-WK > 6
PERFORM VARYING WS-DD FROM 1 BY +1
UNTIL WS-DD > 7
COMPUTE WS-MTH-DD = WS-MTH-DD + 1
IF (WS-MTH-DD < 1)
OR (WS-MTH-DD > WS-DAYS)
MOVE 0 TO WS-DAY (WS-MM, WS-WK, WS-DD)
ELSE
MOVE WS-MTH-DD TO WS-DAY (WS-MM, WS-WK, WS-DD)
END-IF
END-PERFORM
END-PERFORM
END-PERFORM
COMPUTE WS-MM = 0
PERFORM VARYING WS-QQ FROM 1 BY +1
UNTIL WS-QQ > 4
INITIALIZE WS-PRT
COMPUTE WS-PP = 1
PERFORM VARYING WS-COL FROM 1 BY +1
UNTIL WS-COL > 3
COMPUTE WS-MM = 3 * (WS-QQ - 1) + WS-COL
IF WS-COL = 1
COMPUTE WS-PP = WS-PP + WS-LMAR + 2 - WS-DNMW
ELSE
COMPUTE WS-PP = WS-PP + WS-SPBC + 2 - WS-DNMW
END-IF
MOVE WS-MTH-INFO-NAME (WS-MM)
TO WS-PRT(WS-PP:9)
COMPUTE WS-PP
= WS-PP + ( 2 * 7 + WS-SPBD * 6 + WS-SPBD - 1)
- 4
MOVE INPD-YEAR TO WS-PRT (WS-PP:4)
COMPUTE WS-PP = WS-PP + 4
END-PERFORM
DISPLAY WS-PRT (1:WS-LS)
INITIALIZE WS-PRT
COMPUTE WS-PP = 1
PERFORM VARYING WS-COL FROM 1 BY +1
UNTIL WS-COL > 3
COMPUTE WS-MM = 3 * (WS-QQ - 1) + WS-COL
IF WS-COL = 1
COMPUTE WS-PP = WS-PP + WS-LMAR + 2 - WS-DNMW
ELSE
COMPUTE WS-PP = WS-PP + WS-SPBC + 2 - WS-DNMW
END-IF
PERFORM VARYING WS-DD FROM 1 BY +1
UNTIL WS-DD > 7
IF WS-DD > 1
COMPUTE WS-PP = WS-PP + WS-SPBD + 2 - WS-DNMW
END-IF
MOVE WS-DAY-NAME (WS-DD) (1:WS-DNMW)
TO WS-PRT (WS-PP:WS-DNMW)
COMPUTE WS-PP = WS-PP + WS-DNMW
END-PERFORM
END-PERFORM
DISPLAY WS-PRT (1:WS-LS)
PERFORM VARYING WS-WK FROM 1 BY +1
UNTIL WS-WK > 6
INITIALIZE WS-PRT
COMPUTE WS-PP = 1
PERFORM VARYING WS-COL FROM 1 BY +1
UNTIL WS-COL > 3
COMPUTE WS-MM = 3 * (WS-QQ - 1) + WS-COL
IF WS-COL = 1
COMPUTE WS-PP = WS-PP + WS-LMAR
ELSE
COMPUTE WS-PP = WS-PP + WS-SPBC
END-IF
PERFORM VARYING WS-DD FROM 1 BY +1
UNTIL WS-DD > 7
IF WS-DD > 1
COMPUTE WS-PP = WS-PP + WS-SPBD
END-IF
MOVE WS-DAY (WS-MM, WS-WK, WS-DD)
TO WS-PRT (WS-PP:2)
COMPUTE WS-PP = WS-PP + 2
END-PERFORM
END-PERFORM
DISPLAY WS-PRT (1:WS-LS)
END-PERFORM
DISPLAY ' '
END-PERFORM
GOBACK
.
END PROGRAM CALEND.
IDENTIFICATION DIVISION.
PROGRAM-ID. DATE2DOW.
ENVIRONMENT DIVISION.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 WMS-WORK-AREA.
03 WMS-YEAR PIC 9(04).
03 WMS-MONTH PIC 9(02).
03 WMS-CSYS PIC 9(01) VALUE 1.
03 WMS-SUM pic 9(04).
LINKAGE SECTION.
01 INPDATE-RECORD.
05 INPD-YEAR PIC 9(04).
05 FILLER PIC X(01).
05 INPD-MONTH PIC 9(02).
05 FILLER PIC X(01).
05 INPD-DAY PIC 9(02).
01 WMS-DOW PIC 9(01).
PROCEDURE DIVISION USING INPDATE-RECORD, WMS-DOW.
1010-CONVERT-DATE-TO-DOW.
IF INPD-MONTH < 3
COMPUTE WMS-MONTH = INPD-MONTH + 12
COMPUTE WMS-YEAR = INPD-YEAR - 1
ELSE
COMPUTE WMS-MONTH = INPD-MONTH
COMPUTE WMS-YEAR = INPD-YEAR
END-IF
COMPUTE WMS-SUM =
( INPD-DAY + 2 * WMS-MONTH + WMS-YEAR
+ FUNCTION INTEGER (6 * (WMS-MONTH + 1) / 10)
+ FUNCTION INTEGER ( WMS-YEAR / 4 )
- FUNCTION INTEGER ( WMS-YEAR / 100 )
+ FUNCTION INTEGER ( WMS-YEAR / 400 )
+ WMS-CSYS )
COMPUTE WMS-DOW = FUNCTION MOD (WMS-SUM, 7) + 1
GOBACK
.
END PROGRAM DATE2DOW.
</lang> Output (based on 80 character wide display)
JANUARY 1969 FEBRUARY 1969 MARCH 1969
SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
APRIL 1969 MAY 1969 JUNE 1969
SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
JULY 1969 AUGUST 1969 SEPTEMBER 1969
SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
OCTOBER 1969 NOVEMBER 1969 DECEMBER 1969
SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Common Lisp
Depends on quicklisp. <lang lisp>(ql:quickload '(date-calc))
(defparameter *day-row* "Su Mo Tu We Th Fr Sa") (defparameter *calendar-margin* 3)
(defun month-to-word (month)
"Translate a MONTH from 1 to 12 into its word representation."
(svref #("January" "February" "March" "April"
"May" "June" "July" "August"
"September" "October" "November" "December")
(1- month)))
(defun month-strings (year month)
"Collect all of the strings that make up a calendar for a given
MONTH and YEAR."
`(,(date-calc:center (month-to-word month) (length *day-row*))
,*day-row*
;; We can assume that a month calendar will always fit into a 7 by 6 block
;; of values. This makes it easy to format the resulting strings.
,@ (let ((days (make-array (* 7 6) :initial-element nil)))
(loop :for i :from (date-calc:day-of-week year month 1)
:for day :from 1 :to (date-calc:days-in-month year month)
:do (setf (aref days i) day))
(loop :for i :from 0 :to 5
:collect
(format nil "~{~:[ ~;~2,d~]~^ ~}"
(loop :for day :across (subseq days (* i 7) (+ 7 (* i 7)))
:append (if day (list day day) (list day))))))))
(defun calc-columns (characters margin-size)
"Calculate the number of columns given the number of CHARACTERS per
column and the MARGIN-SIZE between them."
(multiple-value-bind (cols excess)
(truncate characters (+ margin-size (length *day-row*)))
(incf excess margin-size)
(if (>= excess (length *day-row*))
(1+ cols)
cols)))
(defun take (n list)
"Take the first N elements of a LIST." (loop :repeat n :for x :in list :collect x))
(defun drop (n list)
"Drop the first N elements of a LIST."
(cond ((or (<= n 0) (null list)) list)
(t (drop (1- n) (cdr list)))))
(defun chunks-of (n list)
"Split the LIST into chunks of size N."
(assert (> n 0))
(loop :for x := list :then (drop n x)
:while x
:collect (take n x)))
(defun print-calendar (year &key (characters 80) (margin-size 3))
"Print out the calendar for a given YEAR, optionally specifying
a width limit in CHARACTERS and MARGIN-SIZE between months."
(assert (>= characters (length *day-row*)))
(assert (>= margin-size 0))
(let* ((calendars (loop :for month :from 1 :to 12
:collect (month-strings year month)))
(column-count (calc-columns characters margin-size))
(total-size (+ (* column-count (length *day-row*))
(* (1- column-count) margin-size)))
(format-string (concatenate 'string
"~{~a~^~" (write-to-string margin-size) ",0@T~}~%")))
(format t "~a~%~a~%~%"
(date-calc:center "[Snoopy]" total-size)
(date-calc:center (write-to-string year) total-size))
(loop :for row :in (chunks-of column-count calendars)
:do (apply 'mapcar
(lambda (&rest heads)
(format t format-string heads))
row))))</lang>
- Output:
CL-USER> (print-calendar 1969)
[Snoopy]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3
6 7 8 9 10 11 12 4 5 6 7 8 9 10 1 2 3 4 5 6 7
13 14 15 16 17 18 19 11 12 13 14 15 16 17 8 9 10 11 12 13 14
20 21 22 23 24 25 26 18 19 20 21 22 23 24 15 16 17 18 19 20 21
27 28 29 30 25 26 27 28 29 30 31 22 23 24 25 26 27 28
29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
NIL
D
<lang d>import std.stdio, std.datetime, std.string, std.conv;
void printCalendar(in uint year, in uint nCols) in {
assert(nCols > 0 && nCols <= 12);
} body {
immutable rows = 12 / nCols + (12 % nCols != 0);
auto date = Date(year, 1, 1);
int offs = date.dayOfWeek;
const months = "January February March April May June
July August September October November December".split;
string[8][12] mons;
foreach (immutable m; 0 .. 12) {
mons[m][0] = months[m].center(21);
mons[m][1] = " Su Mo Tu We Th Fr Sa";
immutable dim = date.daysInMonth;
foreach (immutable d; 1 .. 43) {
immutable day = d > offs && d <= offs + dim;
immutable str = day ? format(" %2s", d-offs) : " ";
mons[m][2 + (d - 1) / 7] ~= str;
}
offs = (offs + dim) % 7;
date.add!"months"(1);
}
"[Snoopy Picture]".center(nCols * 24 + 4).writeln;
writeln(year.text.center(nCols * 24 + 4), "\n");
foreach (immutable r; 0 .. rows) {
string[8] s;
foreach (immutable c; 0 .. nCols) {
if (r * nCols + c > 11)
break;
foreach (immutable i, line; mons[r * nCols + c])
s[i] ~= format(" %s", line);
}
writefln("%-(%s\n%)\n", s);
}
}
void main() {
printCalendar(1969, 3);
}</lang>
[Snoopy Picture]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Delphi
<lang Delphi> program Calendar;
{$APPTYPE CONSOLE}
uses
System.SysUtils, System.DateUtils;
function Center(s: string; width: Integer): string; var
side: Integer;
begin
if s.Length >= width then
exit(s);
side := (width - s.Length) div 2;
Result := s + string.Create(' ', side);
Result := string.Create(' ', width - Result.Length) + Result;
end;
procedure PrintCalendar(year, nCols: word; local: string = 'en-US'); var
fmt: TFormatSettings;
begin
if (nCols <= 0) or (nCols > 12) then exit; fmt := TFormatSettings.Create(local); var rows := 12 div nCols + ord(12 mod nCols <> 0); var date := EncodeDate(year, 1, 1); var offs := DayOfTheWeek(date);
var months: TArray<string>; setlength(months, 12); for var i := 1 to 12 do months[i - 1] := fmt.LongMonthNames[i];
var sWeek := ; for var i := 1 to 7 do sWeek := sWeek + ' ' + copy(fmt.ShortDayNames[i], 1, 2);
var mons: TArray<TArray<string>>;
SetLength(mons, 12, 8);
for var m := 0 to 11 do
begin
mons[m, 0] := Center(months[m], 21);
mons[m, 1] := sWeek;
var dim := DaysInMonth(date);
for var d := 1 to 43 do
begin
var day := (d > offs) and (d <= offs + dim);
var str := ' ';
if day then
str := format(' %2d', [d - offs]);
mons[m, 2 + (d - 1) div 7] := mons[m, 2 + (d - 1) div 7] + str;
end;
offs := (offs + dim) mod 7;
date := IncMonth(date, 1);
end;
writeln(Center('[Snoopy Picture]', nCols * 24 + 4));
Writeln(Center(year.ToString, nCols * 24 + 4));
writeln;
for var r := 0 to rows - 1 do
begin
var s: TArray<string>;
SetLength(s, 8);
for var c := 0 to nCols - 1 do
begin
if r * nCols + c > 11 then
Break;
for var i := 0 to High(mons[r * nCols + c]) do
begin
var line := mons[r * nCols + c, i];
s[i] := s[i] + ' ' + line;
end;
end;
for var ss in s do
begin
writeln(ss, ' ');
end;
writeln;
end;
end;
begin
printCalendar(1969, 4); readln;
end.</lang>
- Output:
[Snoopy Picture]
1969
January February March April
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 1 2 3 4 5
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8 6 7 8 9 10 11 12
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15 13 14 15 16 17 18 19
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22 20 21 22 23 24 25 26
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30
30 31
May June July August
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 1 2 3 4 5 6 7 1 2 3 4 5 1 2
4 5 6 7 8 9 10 8 9 10 11 12 13 14 6 7 8 9 10 11 12 3 4 5 6 7 8 9
11 12 13 14 15 16 17 15 16 17 18 19 20 21 13 14 15 16 17 18 19 10 11 12 13 14 15 16
18 19 20 21 22 23 24 22 23 24 25 26 27 28 20 21 22 23 24 25 26 17 18 19 20 21 22 23
25 26 27 28 29 30 31 29 30 27 28 29 30 31 24 25 26 27 28 29 30
31
September October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 1 2 3 4 1 1 2 3 4 5 6
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
F#
<lang fsharp>let getCalendar year =
let day_of_week month year =
let t = [|0; 3; 2; 5; 0; 3; 5; 1; 4; 6; 2; 4|]
let y = if month < 3 then year - 1 else year
let m = month
let d = 1
(y + y / 4 - y / 100 + y / 400 + t.[m - 1] + d) % 7
//0 = Sunday, 1 = Monday, ...
let last_day_of_month month year =
match month with
| 2 -> if (0 = year % 4 && (0 = year % 400 || 0 <> year % 100)) then 29 else 28
| 4 | 6 | 9 | 11 -> 30
| _ -> 31
let get_month_calendar year month =
let min (x: int, y: int) = if x < y then x else y
let ld = last_day_of_month month year
let dw = 7 - (day_of_week month year)
[|[|1..dw|];
[|dw + 1..dw + 7|];
[|dw + 8..dw + 14|];
[|dw + 15..dw + 21|];
[|dw + 22..min(ld, dw + 28)|];
[|min(ld + 1, dw + 29)..ld|]|]
let sb_fold (f:System.Text.StringBuilder -> 'a -> System.Text.StringBuilder) (sb:System.Text.StringBuilder) (xs:'a array) =
for x in xs do (f sb x) |> ignore
sb
let sb_append (text:string) (sb:System.Text.StringBuilder) = sb.Append(text)
let sb_appendln sb = sb |> sb_append "\n" |> ignore
let sb_fold_in_range a b f sb = [|a..b|] |> sb_fold f sb |> ignore
let mask_builder mask = Printf.StringFormat<string -> string>(mask)
let center n (s:string) =
let l = (n - s.Length) / 2 + s.Length
let f n s = sprintf (mask_builder ("%" + (n.ToString()) + "s")) s
(f l s) + (f (n - l) "")
let left n (s:string) = sprintf (mask_builder ("%-" + (n.ToString()) + "s")) s
let right n (s:string) = sprintf (mask_builder ("%" + (n.ToString()) + "s")) s
let array2string xs =
let ys = xs |> Array.map (fun x -> sprintf "%2d " x)
let sb = ys |> sb_fold (fun sb y -> sb.Append(y)) (new System.Text.StringBuilder())
sb.ToString()
let xsss =
let m = get_month_calendar year
[|1..12|] |> Array.map (fun i -> m i)
let months = [|"January"; "February"; "March"; "April"; "May"; "June"; "July"; "August"; "September"; "October"; "November"; "December"|]
let sb = new System.Text.StringBuilder()
sb |> sb_append "\n" |> sb_append (center 74 (year.ToString())) |> sb_appendln
for i in 0..3..9 do
sb |> sb_appendln
sb |> sb_fold_in_range i (i + 2) (fun sb i -> sb |> sb_append (center 21 months.[i]) |> sb_append " ")
sb |> sb_appendln
sb |> sb_fold_in_range i (i + 2) (fun sb i -> sb |> sb_append "Su Mo Tu We Th Fr Sa " |> sb_append " ")
sb |> sb_appendln
sb |> sb_fold_in_range i (i + 2) (fun sb i -> sb |> sb_append (right 21 (array2string (xsss.[i].[0]))) |> sb_append " ")
sb |> sb_appendln
for j = 1 to 5 do
sb |> sb_fold_in_range i (i + 2) (fun sb i -> sb |> sb_append (left 21 (array2string (xsss.[i].[j]))) |> sb_append " ")
sb |> sb_appendln
sb.ToString()
let printCalendar year = getCalendar year</lang>
- Output:
> printCalendar 1969;;
val it : string =
"
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
"
Factor
<lang factor>USING: arrays calendar.format grouping io.streams.string kernel math.ranges prettyprint sequences sequences.interleaved ; IN: rosetta-code.calendar
- calendar ( year -- )
12 [1,b] [ 2array [ month. ] with-string-writer ] with map 3 <groups> [ " " <interleaved> ] map 5 " " <repetition> <interleaved> simple-table. ;
- calendar-demo ( -- ) 1969 calendar ;
MAIN: calendar-demo</lang>
- Output:
January 1969 February 1969 March 1969
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April 1969 May 1969 June 1969
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July 1969 August 1969 September 1969
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October 1969 November 1969 December 1969
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Fortran
Already having a routine to produce a calendar simplified matters. However, it added to each row of days a row of annotations for those days (Xmas, etc. and also +2hh and -2hh for the days with two half-hour changes in length due to daylight saving: NZ also had daylight saving with changes of one half-hour) which meant that the field allowance was always four. With the annotations abandoned, this could be reduced to three, and, the first day column on a line does not need a leading space. Since the method employed variables for the layout, it could easily be twiddled to have three months per line (thus fitting into a line length of 80) or six (using most of a line length of 132) and so it became a matter of pulling together the needed routines from various places. <lang Fortran>
MODULE DATEGNASH !Assorted vexations. Time and calendar games, with local flavourings added.
TYPE DateBag !Pack three parts into one.
INTEGER DAY,MONTH,YEAR !The usual suspects.
END TYPE DateBag !Simple enough.
CHARACTER*9 MONTHNAME(12),DAYNAME(0:6) !Re-interpretations.
PARAMETER (MONTHNAME = (/"January","February","March","April",
1 "May","June","July","August","September","October","November",
2 "December"/))
PARAMETER (DAYNAME = (/"Sunday","Monday","Tuesday","Wednesday",
1 "Thursday","Friday","Saturday"/)) !Index this array with DayNum mod 7.
CHARACTER*3 MTHNAME(12) !The standard abbreviations.
PARAMETER (MTHNAME = (/"JAN","FEB","MAR","APR","MAY","JUN",
1 "JUL","AUG","SEP","OCT","NOV","DEC"/))
INTEGER*4 JDAYSHIFT !INTEGER*2 just isn't enough.
PARAMETER (JDAYSHIFT = 2415020) !Thus shall 31/12/1899 give 0, a Sunday, via DAYNUM.
CONTAINS
INTEGER FUNCTION LSTNB(TEXT) !Sigh. Last Not Blank.
Concocted yet again by R.N.McLean (whom God preserve) December MM. Code checking reveals that the Compaq compiler generates a copy of the string and then finds the length of that when using the latter-day intrinsic LEN_TRIM. Madness! Can't DO WHILE (L.GT.0 .AND. TEXT(L:L).LE.' ') !Control chars. regarded as spaces. Curse the morons who think it good that the compiler MIGHT evaluate logical expressions fully. Crude GO TO rather than a DO-loop, because compilers use a loop counter as well as updating the index variable. Comparison runs of GNASH showed a saving of ~3% in its mass-data reading through the avoidance of DO in LSTNB alone. Crappy code for character comparison of varying lengths is avoided by using ICHAR which is for single characters only. Checking the indexing of CHARACTER variables for bounds evoked astounding stupidities, such as calculating the length of TEXT(L:L) by subtracting L from L! Comparison runs of GNASH showed a saving of ~25-30% in its mass data scanning for this, involving all its two-dozen or so single-character comparisons, not just in LSTNB.
CHARACTER*(*),INTENT(IN):: TEXT !The bumf. If there must be copy-in, at least there need not be copy back.
INTEGER L !The length of the bumf.
L = LEN(TEXT) !So, what is it?
1 IF (L.LE.0) GO TO 2 !Are we there yet?
IF (ICHAR(TEXT(L:L)).GT.ICHAR(" ")) GO TO 2 !Control chars are regarded as spaces also.
L = L - 1 !Step back one.
GO TO 1 !And try again.
2 LSTNB = L !The last non-blank, possibly zero.
RETURN !Unsafe to use LSTNB as a variable.
END FUNCTION LSTNB !Compilers can bungle it.
CHARACTER*2 FUNCTION I2FMT(N) !These are all the same.
INTEGER*4 N !But, the compiler doesn't offer generalisations.
IF (N.LT.0) THEN !Negative numbers cop a sign.
IF (N.LT.-9) THEN !But there's not much room left.
I2FMT = "-!" !So this means 'overflow'.
ELSE !Otherwise, room for one negative digit.
I2FMT = "-"//CHAR(ICHAR("0") - N) !Thus. Presume adjacent character codes, etc.
END IF !So much for negative numbers.
ELSE IF (N.LT.10) THEN !Single digit positive?
I2FMT = " " //CHAR(ICHAR("0") + N) !Yes. This.
ELSE IF (N.LT.100) THEN !Two digit positive?
I2FMT = CHAR(N/10 + ICHAR("0")) !Yes.
1 //CHAR(MOD(N,10) + ICHAR("0")) !These.
ELSE !Otherwise,
I2FMT = "+!" !Positive overflow.
END IF !So much for that.
END FUNCTION I2FMT !No WRITE and FORMAT unlimbering.
CHARACTER*8 FUNCTION I8FMT(N) !Oh for proper strings.
INTEGER*4 N
CHARACTER*8 HIC
WRITE (HIC,1) N
1 FORMAT (I8)
I8FMT = HIC
END FUNCTION I8FMT
SUBROUTINE SAY(OUT,TEXT) !Gutted version that maintains no file logging output, etc.
INTEGER OUT
CHARACTER*(*) TEXT
WRITE (6,1) TEXT(1:LSTNB(TEXT))
1 FORMAT (A)
END SUBROUTINE SAY
INTEGER*4 FUNCTION DAYNUM(YY,M,D) !Computes (JDayN - JDayShift), not JDayN.
C Conversion from a Gregorian calendar date to a Julian day number, JDayN. C Valid for any Gregorian calendar date producing a Julian day number C greater than zero, though remember that the Gregorian calendar C was not used before y1582m10d15 and often, not after that either. C thus in England (et al) when Wednesday 2'nd September 1752 (Julian style) C was followed by Thursday the 14'th, occasioning the Eleven Day riots C because creditors demanded a full month's payment instead of 19/30'ths. C The zero of the Julian day number corresponds to the first of January C 4713BC on the *Julian* calendar's naming scheme, as extended backwards C with current usage into epochs when it did not exist: the proleptic Julian calendar. c This function employs the naming scheme of the *Gregorian* calendar, c and if extended backwards into epochs when it did not exist (thus the c proleptic Gregorian calendar) it would compute a zero for y-4713m11d24 *if* c it is supposed there was a year zero between 1BC and 1AD (as is convenient c for modern mathematics and astronomers and their simple calculations), *but* c 1BC immediately preceeds 1AD without any year zero in between (and is a leap year) c thus the adjustment below so that the date is y-4714m11d24 or 4714BCm11d24, c not that this name was in use at the time... c Although the Julian calendar (introduced by himself in what we would call 45BC, c which was what the Romans occasionally called 709AUC) was provoked by the c "years of confusion" resulting from arbitrary application of the rules c for the existing Roman calendar, other confusions remain unresolved, c so precise dating remains uncertain despite apparently precise specifications c (and much later, Dennis the Short chose wrongly for the birth of Christ) c and the Roman practice of inclusive reckoning meant that every four years c was interpreted as every third (by our exclusive reckoning) so that the c leap years were not as we now interpret them. This was resolved by Augustus c but exactly when (and what date name is assigned) and whose writings used c which system at the time of writing is a matter of more confusion, c and this has continued for centuries. C Accordingly, although an algorithm may give a regular sequence of date names, c that does not mean that those date names were used at the time even if the c calendar existed then, because the interpretation of the algorithm varied. c This in turn means that a date given as being on the Julian calendar c prior to about 10AD is not as definite as it may appear and its alignment c with the astronomical day number is uncertain even though the calculation c is quite definite. c C Computationally, year 1 is preceded by year 0, in a smooth progression. C But there was never a year zero despite what astronomers like to say, C so the formula's year 0 corresponds to 1BC, year -1 to 2BC, and so on back. C Thus y-4713 in this counting would be 4714BC on the Gregorian calendar, C were it to have existed then which it didn't. C To conform to the civil usage, the incoming YY, presumed a proper BC (negative) C and AD (positive) year is converted into the computational counting sequence, Y, C and used in the formula. If a YY = 0 is (improperly) offered, it will manifest C as 1AD. Thus YY = -4714 will lead to calculations with Y = -4713. C Thus, 1BC is a leap year on the proleptic Gregorian calendar. C For their convenience, astronomers decreed that a day starts at noon, so that C in Europe, observations through the night all have the same day number. C The current Western civil calendar however has the day starting just after midnight C and that day's number lasts until the following midnight. C C There is no constraint on the values of D, which is just added as it stands. C This means that if D = 0, the daynumber will be that of the last day of the C previous month. Likewise, M = 0 or M = 13 will wrap around so that Y,M + 1,0 C will give the last day of month M (whatever its length) as one day before C the first day of the next month. C C Example: Y = 1970, M = 1, D = 1; JDAYN = 2440588, a Thursday but MOD(2440588,7) = 3. C and with the adjustment JDAYSHIFT, DAYNUM = 25568; mod 7 = 4 and DAYNAME(4) = "Thursday". C The Julian Day number 2440588.0 is for NOON that Thursday, 2440588.5 is twelve hours later. C And Julian Day number 2440587.625 is for three a.m. Thursday. C C DAYNUM and MUNYAD are the infamous routines of H. F. Fliegel and T.C. van Flandern, C presented in Communications of the ACM, Vol. 11, No. 10 (October, 1968). Carefully typed in again by R.N.McLean (whom God preserve) December XXMMIIX. C Though I remain puzzled as to why they used I,J,K for Y,M,D, C given that the variables were named in the INTEGER statement anyway.
INTEGER*4 JDAYN !Without rebasing, this won't fit in INTEGER*2.
INTEGER YY,Y,M,MM,D !NB! Full year number, so 1970, not 70.
Caution: integer division in Fortran does not produce fractional results. C The fractional part is discarded so that 4/3 gives 1 and -4/3 gives -1. C Thus 4/3 might be Trunc(4/3) or 4 div 3 in other languages. Beware of negative numbers!
Y = YY !I can fiddle this copy without damaging the original's value.
IF (Y.LT.1) Y = Y + 1 !Thus YY = -2=2BC, -1=1BC, +1=1AD, ... becomes Y = -1, 0, 1, ...
MM = (M - 14)/12 !Calculate once. Note that this is integer division, truncating.
JDAYN = D - 32075 !This is the proper astronomer's Julian Day Number.
a + 1461*(Y + 4800 + MM)/4
b + 367*(M - 2 - MM*12)/12
c - 3*((Y + 4900 + MM)/100)/4
DAYNUM = JDAYN - JDAYSHIFT !Thus, *NOT* the actual *Julian* Day Number.
END FUNCTION DAYNUM !But one such that Mod(n,7) gives day names.
Could compute the day of the year somewhat as follows... c DN:=D + (61*Month + (Month div 8)) div 2 - 30 c + if Month > 2 then FebLength - 30 else 0;
TYPE(DATEBAG) FUNCTION MUNYAD(DAYNUM) !Oh for palindromic programming!
Conversion from a Julian day number to a Gregorian calendar date. See JDAYN/DAYNUM.
INTEGER*4 DAYNUM,JDAYN !Without rebasing, this won't fit in INTEGER*2.
INTEGER Y,M,D,L,N !Y will be a full year number: 1950 not 50.
JDAYN = DAYNUM + JDAYSHIFT !Revert to a proper Julian day number.
L = JDAYN + 68569 !Further machinations of H. F. Fliegel and T.C. van Flandern.
N = 4*L/146097
L = L - (146097*N + 3)/4
Y = 4000*(L + 1)/1461001
L = L - 1461*Y/4 + 31
M = 80*L/2447
D = L - 2447*M/80
L = M/11
M = M + 2 - 12*L
Y = 100*(N - 49) + Y + L
IF (Y.LT.1) Y = Y - 1 !The other side of conformity to BC/AD, as in DAYNUM.
MUNYAD%YEAR = Y !Now place for the world to see.
MUNYAD%MONTH = M
MUNYAD%DAY = D
END FUNCTION MUNYAD !A year has 365.2421988 days...
INTEGER FUNCTION PMOD(N,M) !Remainder, mod M; always positive even if N is negative.
c For date calculations, the MOD function is expected to yield positive remainders, c in line with the idea that MOD(a,b) = MOD(a ± b,b) as is involved in shifting the zero c of the daynumber count by a multiple of seven when considering the day of the week. c For this reason, the zero day was chosen to be 31/12/1899, a Sunday, so that all c day numbers would be positive. But, there was generation at Reefton in 1886. c For some computers, the positive interpretation is implemented, for others, not. c In the case MOD(N,M) = N - Truncate(N/M)*M, MOD(-6,7) = -6 even though MOD(1,7) = 1.
INTEGER N,M !The numbers. M presumed positive.
PMOD = MOD(MOD(N,M) + M,M) !Double do does de deed.
END FUNCTION PMOD !Simple enough.
SUBROUTINE CALENDAR(Y1,Y2,COLUMNS) !Print a calendar, with holiday annotations.
Careful with the MOD function. MOD(-6,7) may be negative on some systems, positive on others. Thus, PMOD.
INTEGER Y1,Y2,YEAR !Ah yes. Year stuff.
INTEGER M,M1,M2,MONTH !And within each year are the months.
INTEGER*4 DN1,DN2,DN,D !But days are handled via day numbers.
INTEGER W,G !Layout: width and gap.
INTEGER L,LINE !Vertical layout.
INTEGER COL,COLUMNS,COLWIDTH !Horizontal layout.
INTEGER CODE !Days are not all alike.
CHARACTER*200 STRIPE(6),SPECIAL(6),MLINE,DLINE !Scratchpads.
IF (Y1.LE.0) CALL SAY(MSG,"Despite the insinuations of "
1 //"astronomers seduced by the ease of their arithmetic, "
2 //"there is no year zero. 1AD is preceded by 1BC, "
3 //"corresponding to year -1, 2BC to year -2, etc.")
IF (Y1.LT.1582) CALL SAY(MSG,"This Gregorian calendar"
1 //" scheme did not exist prior to 1582.")
c COLUMNS = 4 !Number of months across the page. c W = 4 !Width of a day's field. c G = 3 !Added gap between month columns.
W = 3 !Abandon the annotation of the day's class, so just a space and two digits.
G = 1 !Set the gap to one.
COLWIDTH = 7*W + G !Seven days to a week, plus a gap.
Y:DO YEAR = Y1,Y2 !Step through the years.
CALL SAY(MSG,"") !Space out between each year's schedule.
IF (YEAR.EQ.0) THEN !This year number is improper.
CALL SAY(MSG,"There is no year zero.") !Declare correctness.
CYCLE Y !Skip this year.
END IF !Otherwise, no evasions.
MLINE = "" !Prepare a field..
L = (COLUMNS*COLWIDTH - G - 8)/2 !Find the centre.
IF (YEAR.GT.0) THEN !Ordinary Anno Domine years?
MLINE(L:) = I8FMT(YEAR) !Yes. Place the year number.
ELSE !Otherwise, we're in BC.
MLINE(L - 1:) = I8FMT(-YEAR)//"BC" !There is no year zero.
END IF !So much for year games.
CALL SAY(MSG,MLINE) !Splot the year.
DO MONTH = 1,12,COLUMNS !Step through the months of this YEAR.
M1 = MONTH !The first of this lot.
M2 = MIN(12,M1 + COLUMNS - 1) !The last.
MLINE = "" !Scrub the month names.
DLINE = "" !Wipe the day names in case COLUMNS does not divide 12.
STRIPE = "" !Scrub the day table.
SPECIAL = "" !And the associated special day remarks.
c L0 = W - 1 !Locate the first day number's first column.
L0 = 1 !Cram: no space in front of the Sunday day-of-the-month.
DO M = M1,M2 !Work through the months.
L = (COLWIDTH - G - LSTNB(MONTHNAME(M)))/2 - 1 !Centre the month name.
MLINE(L0 + L:) = MONTHNAME(M) !Splot.
DO D = 0,6 !Prepare this month's day name heading.
L = L0 + (3 - W) + D*W !Locate its first column.
DLINE(L:L + 2) = DAYNAME(D)(1:W - 1) !Squish.
END DO !On to the next day.
DN1 = DAYNUM(YEAR,M,1) !Day number of the first day of the month.
DN2 = DAYNUM(YEAR,M + 1,0)!Thus the last, without annoyance.
COL = MOD(PMOD(DN1,7) + 7,7) !What day of the week is the first day?
LINE = 1 !Whichever it is, it is on the first line.
D = 1 !Day of the month, not number of the day.
DO DN = DN1,DN2 !Step through the day numbers of this month.
L = L0 + COL*W !Finger the starting column.
STRIPE(LINE)(L:L + 1) = I2FMT(D) !Place the two-digit day number.
D = D + 1 !Advance to the next day of the current month
COL = COL + 1 !So, one more day along in the week.
IF (COL.GT.6) THEN !A fresh week is needed?
LINE = LINE + 1 !Yes.
COL = 0 !Start the new week.
END IF !So much for the end of a week.
END DO !On to the next day of this month.
L0 = L0 + 7*W + G !Locate the start column of the next month's column.
END DO !On to the next month in this layer.
CALL SAY(MSG,MLINE) !Name the months.
C CALL SAY(MSG,"") !Set off.
CALL SAY(MSG,DLINE) !Give the day name headings.
DO LINE = 1,6 !Now roll the day number table.
IF (STRIPE(LINE).NE."") THEN !Perhaps there was no use of the sixth line.
CALL SAY(MSG,STRIPE(LINE)) !Ah well. Show the day numbers.
END IF !So much for that week line.
END DO !On to the next week line.
END DO !On to the next batch of months of the YEAR.
END DO Y !On to the next YEAR.
CALL SAY(MSG,"") !Take a breath.
END SUBROUTINE CALENDAR !Enough of this.
END MODULE DATEGNASH !An ad-hoc assemblage.
PROGRAM SHOW1968 !Put it to the test.
USE DATEGNASH
INTEGER NCOL
DO NCOL = 1,6
CALL CALENDAR(1969,1969,NCOL)
END DO
END
</lang> Selected output, lacking alas the outbursts from Snoopy: three months /line
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
And with six...
1969
January February March April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8 6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15 13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22 20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30 25 26 27 28 29 30 31 29 30
30 31
July August September October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6 1 2 3 4 1 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
31 30
FreeBASIC
<lang freebasic>' version 17-02-2016 ' compile with: fbc -s console
' TRUE/FALSE are built-in constants since FreeBASIC 1.04 ' For older versions they have to be defined.
- Ifndef TRUE
#Define FALSE 0 #Define TRUE Not FALSE
- EndIf
Function WD(m As Integer, d As Integer, y As Integer) As Integer
' Zellerish ' 0 = Sunday, 1 = Monday, 2 = Tuesday, 3 = Wednesday ' 4 = Thursday, 5 = Friday, 6 = Saturday
If m < 3 Then ' if m = 1 or m = 2 then
m += 12
y -= 1
End If
Return (y + (y \ 4) - (y \ 100) + (y \ 400) + d + ((153 * m + 8) \ 5)) Mod 7
End Function
Function LEAPYEAR(y As Integer) As Integer
If (y Mod 4) <> 0 Then Return FALSE If (y Mod 100) = 0 AndAlso (y Mod 400) <> 0 Then Return FALSE Return TRUE
End Function
' ------=< main >=------
Dim As String wdn = "Mo Tu We Th Fr Sa Su" ' weekday names Dim As String mo(1 To 12) => {"January", "February", "March", "April", _
"May", "June", "July", "August", "September", _
"October", "November", "December"}
Dim As String tmp1, tmp2, d(1 To 12)
Dim As UInteger ml(1 To 12) => {31,28,31,30,31,30,31,31,30,31,30,31} Dim As UInteger i, i1, j, k, y = 1969 Dim As UInteger m_row = 6
Do
While InKey <> "" : Wend ' clear keyboard buffer
Print : Print " For wich year do want a calendar"
Print " Year must be greater then 1752"
Input " Input year (enter = 1969)";tmp1
If tmp1 = "" Then Exit Do
i = Val(tmp1)
If i < 1752 Then
Print
Print " Can only make a calendar for a year after 1752"
Beep : Sleep 5000, 1 : Print
Else
y = i : Exit Do
End If
Loop
Cls Do
While InKey <> "" : Wend ' clear keyboard buffer
Print : Print " Make device choice"
Print " 132 characters Line printer, 6x2 months (Enter or 1)"
Print " 80x43 display, 3x4 months (2)"
Do
tmp1 = InKey
If tmp1 = Chr(13) Or tmp1 = "1" Then Exit Do, Do
If tmp1 = "2" Then
m_row = 3
Exit Do, Do
End If
Loop Until tmp1 <> ""
Print : Print " Enter, 1 or 2 only"
Beep : Sleep 5000, 1 : Print
Loop Cls
Dim As UInteger char_line = m_row * 22 - 1 If LEAPYEAR(y) = TRUE Then ml(2) = 29
tmp1 = "" For i = 1 To 31
tmp1 = tmp1 + Right((" " + Str(i)), 3)
Next
For i = 1 To 12
tmp2 = "" j = WD(i,1, y) If j = 0 Then j = 7 j = j - 1 tmp2 = Space(j * 3) + Left(tmp1, ml(i) * 3) + Space(21) d(i) = tmp2
Next
Print tmp1 = Str(y) Print Space((char_line + (char_line And 1) - Len(tmp1)) \ 2); tmp1 Print
tmp2 = " " ' make the weekday names line For i = 1 To m_row
tmp2 = tmp2 + wdn If i < m_row Then tmp2 = tmp2 + " "
Next
For i = 1 To 12 Step m_row
tmp1 = ""
For j = i To i + m_row -2 ' make the month names line
tmp1 = tmp1 + Left(Space((22 - Len(mo(j))) \ 2) + mo(j) + Space(21), 22)
Next
tmp1 = tmp1 + Space((22 - Len(mo(i + m_row -1))) \ 2) + mo(i + m_row -1)
Print tmp1
Print tmp2
For j = 1 To 85 Step 21
For k = i To i + m_row -2
Print Mid(d(k), j ,21); " ";
Next
Print Mid(d(i + m_row -1), j ,21)
Next
Print
Next
' empty keyboard buffer While InKey <> "" : Wend 'Print : Print "hit any key to end program Sleep End</lang>
- Output:
1969
January February March April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 1 2 3 4 5 6 1 2 3 4 1
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
July August September October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7 1 2 3 4 5 1 2 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14 6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21 13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28 20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30 27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
FutureBasic
<lang futurebasic> include "ConsoleWindow"
dim as Str255 a
open "UNIX", 1,"cal 1969"
do line input #1, a print a until eof(1)
close 1 </lang>
Output:
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Gambas
<lang gambas>Public Sub Main()
Shell "cal 1969"
End</lang> Output:
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Go
<lang Go>package main
import ( "fmt" "time" )
const pageWidth = 80
func main() { printCal(1969) }
func printCal(year int) { thisDate := time.Date(year, 1, 1, 1, 1, 1, 1, time.UTC) var ( dayArr [12][7][6]int // month, weekday, week month, lastMonth time.Month weekInMonth, dayInMonth int ) for thisDate.Year() == year { if month = thisDate.Month(); month != lastMonth { weekInMonth = 0 dayInMonth = 1 } weekday := thisDate.Weekday() if weekday == 0 && dayInMonth > 1 { weekInMonth++ } dayArr[int(month)-1][weekday][weekInMonth] = thisDate.Day() lastMonth = month dayInMonth++ thisDate = thisDate.Add(time.Hour * 24) } centre := fmt.Sprintf("%d", pageWidth/2) fmt.Printf("%"+centre+"s\n\n", "[SNOOPY]") centre = fmt.Sprintf("%d", pageWidth/2-2) fmt.Printf("%"+centre+"d\n\n", year) months := [12]string{ " January ", " February", " March ", " April ", " May ", " June ", " July ", " August ", "September", " October ", " November", " December"} days := [7]string{"Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"} for qtr := 0; qtr < 4; qtr++ { for monthInQtr := 0; monthInQtr < 3; monthInQtr++ { // Month names fmt.Printf(" %s ", months[qtr*3+monthInQtr]) } fmt.Println() for monthInQtr := 0; monthInQtr < 3; monthInQtr++ { // Day names for day := 0; day < 7; day++ { fmt.Printf(" %s", days[day]) } fmt.Printf(" ") } fmt.Println() for weekInMonth = 0; weekInMonth < 6; weekInMonth++ { for monthInQtr := 0; monthInQtr < 3; monthInQtr++ { for day := 0; day < 7; day++ { if dayArr[qtr*3+monthInQtr][day][weekInMonth] == 0 { fmt.Printf(" ") } else { fmt.Printf("%3d", dayArr[qtr*3+monthInQtr][day][weekInMonth]) } } fmt.Printf(" ") } fmt.Println() } fmt.Println() } }</lang> Output:
[SNOOPY]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Haskell
<lang Haskell>import qualified Data.Text as T import Data.Time import Data.Time.Calendar import Data.Time.Calendar.WeekDate import Data.List.Split (chunksOf) import Data.List
data Day = Su | Mo | Tu | We | Th | Fr | Sa
deriving (Show, Eq, Ord, Enum)
data Month = January | February | March
| April | May | June
| July | August | September
| October | November | December
deriving (Show, Eq, Ord, Enum)
monthToInt :: Month -> Int monthToInt = (+ 1) . fromEnum
dayFromDate :: Integer -> Month -> Int -> Int dayFromDate year month day = day' `mod` 7
where (_, _, day') = toWeekDate $ fromGregorian year (monthToInt month) day
nSpaces :: Int -> T.Text nSpaces n = T.replicate n (T.pack " ")
space :: T.Text space = nSpaces 1
calMarginWidth = 3
calMargin :: T.Text calMargin = nSpaces calMarginWidth
calWidth = 20
listMonth :: Integer -> Month -> [T.Text] listMonth year month = [monthHeader, weekHeader] ++ weeks'
where
monthHeader = (T.center calWidth ' ') . T.pack $ show month
weekHeader = (T.intercalate space) $ map (T.pack . show) [(Su)..]
monthLength = toInteger $
gregorianMonthLength year $
monthToInt month
firstDay = dayFromDate year month 1
days = replicate firstDay (nSpaces 2) ++
map ((T.justifyRight 2 ' ') . T.pack . show) [1..monthLength]
weeks = map (T.justifyLeft calWidth ' ') $
map (T.intercalate space) $
chunksOf 7 days
weeks' = weeks ++ replicate (6 - length weeks) (nSpaces calWidth)
listCalendar :: Integer -> Int -> [[[T.Text]]] listCalendar year calColumns = (chunksOf calColumns) . (map (listMonth year)) $
enumFrom January
calColFromCol :: Int -> Int calColFromCol columns = c + if r >= calWidth then 1 else 0
where (c, r) = columns `divMod` (calWidth + calMarginWidth)
colFromCalCol :: Int -> Int colFromCalCol calCol = calCol * calWidth + ((calCol - 1) * calMarginWidth)
center :: Int -> String -> String center i a = T.unpack . (T.center i ' ') $ T.pack a
printCal :: [[[T.Text]]] -> IO () printCal = mapM_ f where
f c = mapM_ (putStrLn . T.unpack) rows where rows = map (T.intercalate calMargin) $ transpose c
printCalendar :: Integer -> Int -> IO () printCalendar year columns =
if columns < 20
then putStrLn $ "Cannot print less than 20 columns"
else do
putStrLn $ center columns' "[Maybe Snoopy]"
putStrLn $ center columns' $ show year
putStrLn ""
printCal $ listCalendar year calcol'
where
calcol' = calColFromCol columns
columns' = colFromCalCol calcol'</lang>
*Main> printCalendar 1969 80
[Maybe Snoopy]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Huginn
<lang huginn>import DateTime as dt; import Algorithms as algo; import Text as text;
class Calendar {
_monthNames_ = none;
_dayNames_ = none;
constructor() {
t = dt.now();
_monthNames_ = algo.materialize( algo.map( algo.range( 1, 13 ), @[t]( m ) { dt.format( "%B", t.set_date( 1, m, 1 ) ); } ), tuple );
_dayNames_ = algo.materialize( algo.map( algo.range( 1, 8 ), @[t]( d ) { dt.format( "%a", t.set_date( 1, 1, d ) )[:2]; } ), tuple );
}
print_year( year_, cols_ ) {
t = dt.now();
print( "{:^66d}\n".format( year_ ) );
for ( rm : algo.range( 12 / cols_ ) ) {
m = rm * cols_;
print( text.repeat( "{:^22s}", cols_ ).format( _monthNames_[m:m + cols_]... ) + "\n" );
day = [];
daysInMonth = [];
for ( mc : algo.range( cols_ ) ) {
print( " {} {} {} {} {} {} {} ".format( _dayNames_... ) );
t.set_date( year_, m + mc + 1, 1 );
day.push( - t.get_day_of_week() + 1 );
daysInMonth.push( t.get_days_in_month() );
}
print( "\n" );
haveDay = true;
while ( haveDay ) {
haveDay = false;
for ( mc : algo.range( cols_ ) ) {
for ( d : algo.range( 7 ) ) {
if ( ( day[mc] > 0 ) && ( day[mc] <= daysInMonth[mc] ) ) {
print( " {:2d}".format( day[mc] ) );
haveDay = true;
} else {
print( " " );
}
day[mc] += 1;
}
print( " " );
}
print( "\n" );
}
}
}
}
main( argv_ ) {
cal = Calendar();
cols = size( argv_ ) > 2 ? integer( argv_[2] ) : 3;
if ( 12 % cols != 0 ) {
cols = 3;
}
cal.print_year(
size( argv_ ) > 1
? integer( argv_[1] )
: dt.now().get_year(),
cols
);
}</lang>
Output:
1969
January February March
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
Icon and Unicon
The procedures printCalendar handles formatting of large components and uses co-expressions to keep the formatting of week elements in each column synchronized. The procedure CalendarFormatWeek is a generator that returns heading elements, alignment spacing, and individual days. <lang Icon>procedure main(A)
printCalendar(\A[1]|1969)
end
procedure printCalendar(year) #: Print a 3 column x 80 char calendar
cols := 3 # fixed width
mons := [] # table of months
"January February March April May June " ||
"July August September October November December " ?
while put(mons, tab(find(" "))) do move(1)
write(center("[Snoopy Picture]",cols * 24 + 4)) # mandatory ..
write(center(year,cols * 24 + 4), "\n") # ... headers
M := list(cols) # coexpr container
every mon := 0 to 9 by cols do { # go through months by cols
writes(" ")
every i := 1 to cols do {
writes(center(mons[mon+i],24)) # header months
M[i] := create CalendarFormatWeek(year,mon + i) # formatting coexpr
}
write()
every 1 to 7 do { # 1 to max rows
every c := 1 to cols do { # for each column
writes(" ")
every 1 to 7 do writes(right(@M[c],3)) # each row day element
}
write()
}
}
return
end
link datetime
procedure CalendarFormatWeek(year,m) #: Format Week for Calendar
static D initial D := [31,28,31,30,31,30,31,31,30,31,30,31]
every suspend "Su"|"Mo"|"Tu"|"We"|"Th"|"Fr"|"Sa" # header every 1 to (d := (julian(m,1,year)+1)%7) do suspend "" # lead day alignment every suspend 1 to D[m] do d +:= 1 # days if m = 2 & IsLeapYear(year) then suspend (d +:= 1, 29) # LY adjustment every d to (6*7) do suspend "" # trailer alignment
end</lang>
datetime.icn provides julian and IsLeapYear
Output:
[Snoopy Picture]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
J
Solution: <lang j>require 'dates format' NB. J6.x require 'dates general/misc/format' NB. J7.x calBody=: (1 1 }. _1 _1 }. ":)@(-@(<.@%&22)@[ ]\ calendar@]) calTitle=: (<: - 22&|)@[ center '[Insert Snoopy here]' , ,:~ ":@] formatCalendar=: calTitle , calBody</lang> Example use: <lang j> 80 formatCalendar 1969
[Insert Snoopy here]
1969
Jan │ Feb │ Mar
Su Mo Tu We Th Fr Sa│ Su Mo Tu We Th Fr Sa│ Su Mo Tu We Th Fr Sa
1 2 3 4│ 1│ 1
5 6 7 8 9 10 11│ 2 3 4 5 6 7 8│ 2 3 4 5 6 7 8
12 13 14 15 16 17 18│ 9 10 11 12 13 14 15│ 9 10 11 12 13 14 15
19 20 21 22 23 24 25│ 16 17 18 19 20 21 22│ 16 17 18 19 20 21 22
26 27 28 29 30 31 │ 23 24 25 26 27 28 │ 23 24 25 26 27 28 29
│ │ 30 31
─────────────────────┼─────────────────────┼─────────────────────
Apr │ May │ Jun
Su Mo Tu We Th Fr Sa│ Su Mo Tu We Th Fr Sa│ Su Mo Tu We Th Fr Sa
1 2 3 4 5│ 1 2 3│ 1 2 3 4 5 6 7
6 7 8 9 10 11 12│ 4 5 6 7 8 9 10│ 8 9 10 11 12 13 14
13 14 15 16 17 18 19│ 11 12 13 14 15 16 17│ 15 16 17 18 19 20 21
20 21 22 23 24 25 26│ 18 19 20 21 22 23 24│ 22 23 24 25 26 27 28
27 28 29 30 │ 25 26 27 28 29 30 31│ 29 30
│ │
─────────────────────┼─────────────────────┼─────────────────────
Jul │ Aug │ Sep
Su Mo Tu We Th Fr Sa│ Su Mo Tu We Th Fr Sa│ Su Mo Tu We Th Fr Sa
1 2 3 4 5│ 1 2│ 1 2 3 4 5 6
6 7 8 9 10 11 12│ 3 4 5 6 7 8 9│ 7 8 9 10 11 12 13
13 14 15 16 17 18 19│ 10 11 12 13 14 15 16│ 14 15 16 17 18 19 20
20 21 22 23 24 25 26│ 17 18 19 20 21 22 23│ 21 22 23 24 25 26 27
27 28 29 30 31 │ 24 25 26 27 28 29 30│ 28 29 30
│ 31 │
─────────────────────┼─────────────────────┼─────────────────────
Oct │ Nov │ Dec
Su Mo Tu We Th Fr Sa│ Su Mo Tu We Th Fr Sa│ Su Mo Tu We Th Fr Sa
1 2 3 4│ 1│ 1 2 3 4 5 6
5 6 7 8 9 10 11│ 2 3 4 5 6 7 8│ 7 8 9 10 11 12 13
12 13 14 15 16 17 18│ 9 10 11 12 13 14 15│ 14 15 16 17 18 19 20
19 20 21 22 23 24 25│ 16 17 18 19 20 21 22│ 21 22 23 24 25 26 27
26 27 28 29 30 31 │ 23 24 25 26 27 28 29│ 28 29 30 31
│ 30 │ </lang>
Java
<lang java>import java.text.*; import java.util.*;
public class CalendarTask {
public static void main(String[] args) {
printCalendar(1969, 3);
}
static void printCalendar(int year, int nCols) {
if (nCols < 1 || nCols > 12)
throw new IllegalArgumentException("Illegal column width.");
Calendar date = new GregorianCalendar(year, 0, 1);
int nRows = (int) Math.ceil(12.0 / nCols);
int offs = date.get(Calendar.DAY_OF_WEEK) - 1;
int w = nCols * 24;
String[] monthNames = new DateFormatSymbols(Locale.US).getMonths();
String[][] mons = new String[12][8];
for (int m = 0; m < 12; m++) {
String name = monthNames[m];
int len = 11 + name.length() / 2;
String format = MessageFormat.format("%{0}s%{1}s", len, 21 - len);
mons[m][0] = String.format(format, name, "");
mons[m][1] = " Su Mo Tu We Th Fr Sa";
int dim = date.getActualMaximum(Calendar.DAY_OF_MONTH);
for (int d = 1; d < 43; d++) {
boolean isDay = d > offs && d <= offs + dim;
String entry = isDay ? String.format(" %2s", d - offs) : " ";
if (d % 7 == 1)
mons[m][2 + (d - 1) / 7] = entry;
else
mons[m][2 + (d - 1) / 7] += entry;
}
offs = (offs + dim) % 7;
date.add(Calendar.MONTH, 1);
}
System.out.printf("%" + (w / 2 + 10) + "s%n", "[Snoopy Picture]");
System.out.printf("%" + (w / 2 + 4) + "s%n%n", year);
for (int r = 0; r < nRows; r++) {
for (int i = 0; i < 8; i++) {
for (int c = r * nCols; c < (r + 1) * nCols && c < 12; c++)
System.out.printf(" %s", mons[c][i]);
System.out.println();
}
System.out.println();
}
}
}</lang>
- Output:
[Snoopy Picture]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
JavaScript
<lang javascript>/**
* Given a width, return a function that takes a string, and
* pads it at both ends to the given width
* @param {number} width
* @returns {function(string): string}
*/
const printCenter = width =>
s => s.padStart(width / 2 + s.length / 2, ' ').padEnd(width);
/**
* Given an locale string and options, return a function that takes a date
* object, and retrurns the date formatted to the locale and options.
* @param {string} locale
* @param {DateTimeFormatOptions} options
* @returns {function(Date): string}
*/
const localeName = (locale, options) => {
const formatter = new Intl.DateTimeFormat(locale, options); return date => formatter.format(date);
};
/**
* Increment the date by number.
* @param {Date} date
* @param {number} inc
* @returns {Date}
*/
const addDay = (date, inc = 1) => {
const res = new Date(date.valueOf()); res.setDate(date.getDate() + inc); return res;
}
/**
* Given a date, build a string of the week, and return it along with
* the mutated date object.
* @param {Date} date
* @returns {[boolean, Date, string]}
*/
const makeWeek = date => {
const month = date.getMonth();
let [wdi, md, m] = [date.getUTCDay(), date.getDate(), date.getMonth()];
const line = Array(7).fill(' ').map((e, i) => {
if (i === wdi && m === month) {
const result = (md + ).padStart(2, ' ');
date = addDay(date);
[wdi, md, m] = [date.getUTCDay(), date.getDate(), date.getMonth()];
return result;
} else {
return e;
}
}).join(' ');
return [month !== m, date, line];
}
/**
* Print a nicely formatted calender for the given year in the given locale.
* @param {number} year The required year of the calender
* @param {string} locale The locale string. Defaults to US English.
* @param {number} cols The number of columns for the months. Defaults to 3.
* @param {number} coll_space The space between the columns. Defaults to 5.
*/
const cal = (year, locale = 'en-US', cols = 3, coll_space = 5) => {
const MONTH_LINES = 9; // Number of lines that make up a month. const MONTH_COL_WIDTH = 20; // Character width of a month const COL_SPACE = ' '.padStart(coll_space); const FULL_WIDTH = MONTH_COL_WIDTH * cols + coll_space * (cols - 1);
const collArr = Array(cols).fill();
const monthName = localeName(locale, {month: 'long'});
const weekDayShort = localeName(locale, {weekday: 'short'});
const monthCenter = printCenter(MONTH_COL_WIDTH);
const pageCenter = printCenter(FULL_WIDTH);
// Get the weekday in the given locale.
const sun = new Date(Date.UTC(2017, 0, 1)); // A sunday
const weekdays = Array(7).fill().map((e, i) =>
weekDayShort(addDay(sun, i)).padStart(2, ' ').substring(0, 2)).join(' ');
// The start date. let date = new Date(Date.UTC(year, 0, 1, 0, 0, 0)); let nextMonth = true; let line = ; const fullYear = date.getUTCFullYear();
// The array into which each of the lines are populated. const accumulate = [];
// Populate the month table heading and columns.
const preAmble = date => {
accumulate.push(monthCenter(' '))
accumulate.push(monthCenter(monthName(date)));
accumulate.push(weekdays);
};
// Accumulate the week lines for the year.
while (date.getUTCFullYear() === fullYear) {
if (nextMonth) {
if (accumulate.length % MONTH_LINES !== 0) {
accumulate.push(monthCenter(' '))
}
preAmble(date);
}
[nextMonth, date, line] = makeWeek(date);
accumulate.push(line);
}
// Print the calendar.
console.log(pageCenter(String.fromCodePoint(0x1F436)));
console.log(pageCenter(`--- ${fullYear} ---`));
accumulate.reduce((p, e, i) => {
if (!p.includes(i)) {
const indexes = collArr.map((e, ci) => i + ci * MONTH_LINES);
console.log(indexes.map(e => accumulate[e]).join(COL_SPACE));
p.push(...indexes);
}
return p;
}, []);
};
cal(1969, 'en-US', 3); </lang>
- Output:
🐶
--- 1969 ---
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Julia
<lang julia> using Dates
const pagesizes = Dict( "lpr" => [132, 66], "tn3270" => [80, 43])
pagefit(prn) = haskey(pagesizes, prn) ?
[div(pagesizes[prn][1], 22), div(pagesizes[prn][2], 12)] : [1, 1]
pagecols(prn) = haskey(pagesizes, prn) ? pagesizes[prn][1] : 20
function centerobject(x, cols)
content = string(x) rpad(lpad(content, div(cols + length(content), 2)), cols)
end
function ljustlines(x, cols)
arr = Vector{String}()
for s in split(x, "\n")
push!(arr, rpad(s, cols)[1:cols])
end
join(arr, "\n")
end
function formatmonth(yr, mo)
dt = Date("$yr-$mo-01")
dayofweekfirst = dayofweek(dt)
numweeklines = 1
str = centerobject(monthname(dt), 20) * "\nMo Tu We Th Fr Sa Su\n"
str *= " " ^ (3 * (dayofweekfirst - 1)) * lpad(string(1), 2)
for i = 2:daysinmonth(dt)
if (i + dayofweekfirst + 5) % 7 == 0
str *= "\n" * lpad(i, 2)
numweeklines += 1
else
str *= lpad(string(i), 3)
end
end
str *= numweeklines < 6 ? "\n\n\n" : "\n\n"
ljustlines(str, 20)
end
function formatyear(displayyear, printertype)
calmonths = [formatmonth(displayyear, mo) for mo in 1:12]
columns = pagecols(printertype)
monthsperline = pagefit(printertype)[1]
joinspaces = max( (monthsperline > 1) ?
div(columns - monthsperline * 20, monthsperline - 1) : 1, 1)
str = "\n" * centerobject(displayyear, columns) * "\n"
monthcal = [split(formatmonth(displayyear, i), "\n") for i in 1:12]
for i in 1:monthsperline:length(calmonths) - 1
for j in 1:length(monthcal[1])
monthlines = map(x->monthcal[x][j], i:i + monthsperline - 1)
str *= rpad(join(monthlines, " " ^ joinspaces), columns) * "\n"
end
str *= "\n"
end
str
end
function lineprintcalendar(years)
for year in years, printer in keys(pagesizes)
println(formatyear(year, printer))
end
end
lineprintcalendar(1969) </lang>
Kotlin
<lang scala>import java.io.PrintStream import java.text.DateFormatSymbols import java.text.MessageFormat import java.util.Calendar import java.util.GregorianCalendar import java.util.Locale
internal fun PrintStream.printCalendar(year: Int, nCols: Byte, locale: Locale?) {
if (nCols < 1 || nCols > 12)
throw IllegalArgumentException("Illegal column width.")
val w = nCols * 24
val nRows = Math.ceil(12.0 / nCols).toInt()
val date = GregorianCalendar(year, 0, 1) var offs = date.get(Calendar.DAY_OF_WEEK) - 1
val days = DateFormatSymbols(locale).shortWeekdays.slice(1..7).map { it.slice(0..1) }.joinToString(" ", " ")
val mons = Array(12) { Array(8) { "" } }
DateFormatSymbols(locale).months.slice(0..11).forEachIndexed { m, name ->
val len = 11 + name.length / 2
val format = MessageFormat.format("%{0}s%{1}s", len, 21 - len)
mons[m][0] = String.format(format, name, "")
mons[m][1] = days
val dim = date.getActualMaximum(Calendar.DAY_OF_MONTH)
for (d in 1..42) {
val isDay = d > offs && d <= offs + dim
val entry = if (isDay) String.format(" %2s", d - offs) else " "
if (d % 7 == 1)
mons[m][2 + (d - 1) / 7] = entry
else
mons[m][2 + (d - 1) / 7] += entry
}
offs = (offs + dim) % 7
date.add(Calendar.MONTH, 1)
}
printf("%" + (w / 2 + 10) + "s%n", "[Snoopy Picture]")
printf("%" + (w / 2 + 4) + "s%n%n", year)
for (r in 0 until nRows) {
for (i in 0..7) {
var c = r * nCols
while (c < (r + 1) * nCols && c < 12) {
printf(" %s", mons[c][i])
c++
}
println()
}
println()
}
}
fun main(args: Array<String>) {
System.out.printCalendar(1969, 3, Locale.US)
}</lang>
- Output:
See D output.
Liberty BASIC
<lang lb> rem Adapted from LB examples included with software [start]
prompt "Enter year(yyyy)?";year
if year<1900 then notice "1900 or later":goto [start]
ax=1:gx=8:ay=3:gy=10
locate 52,1:print year
for mr = 0 to 3
for mc = 0 to 2
mt=mt+1
aDate$ = str$(mt)+"/01/"+str$(year)
px = ax+mc*gx
py = ay+mr*gy
gosub [printout]
next mc
next mr
gosub [snoopy]
end
[printout]
locate 4*px-3+int((30-len(monthname$(aDate$)))/2),py
print monthname$(aDate$)
FirstDay=date$(word$(aDate$,1,"/")+"/1/"+word$(aDate$,3,"/"))
LastDay$=date$(date$(word$(date$(FirstDay+32),1,"/")+"/1/"+word$(date$(FirstDay+32),3,"/"))-1)
dow=val(word$("3 4 5 x 6 7 x 1 2",int((FirstDay/7-int(FirstDay/7))*10)+1))
locate px*4-3, py+1
print " Su Mo Tu We Th Fr Sa"
for i=1 to val(mid$(LastDay$,4,2))
y=int((i+dow-2)/7)
x=px+(i+dow-2)-y*7
x=4*x
locate x-4,py+y+2
print using("###",i)
next i
return
[snoopy]
locate ax, ay+4*gy print space$(4*gx);" ,-~~-.___." print space$(4*gx);" / ()=(() \" print space$(4*gx);" ( ( 0" print space$(4*gx);" \._\, ,----'" print space$(4*gx);" ##XXXxxxxxxx" print space$(4*gx);" / ---'~;" print space$(4*gx);" / /~|-" print space$(4*gx);" _____=( ~~ |______ " print space$(4*gx);" /_____________________\ " print space$(4*gx);" /_______________________\" print space$(4*gx);" /_________________________\" print space$(4*gx);"/___________________________\" print space$(4*gx);" |____________________|" print space$(4*gx);" |____________________|" print space$(4*gx);" |____________________|" print space$(4*gx);" | |"
return
function monthname$(aDate$)
month=val(aDate$)
monthname$=word$("January February March April May June July August September October November December",month)
end function </lang>
- Output:
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
,-~~-.___.
/ ()=(() \
( ( 0
\._\, ,----'
##XXXxxxxxxx
/ ---'~;
/ /~|-
_____=( ~~ |______
/_____________________\
/_______________________\
/_________________________\
/___________________________\
|____________________|
|____________________|
|____________________|
| |
Lingo
<lang lingo>---------------------------------------- -- @desc Class "Calendar" -- @file parent script "Calendar"
property _months property _weekdayStr property _refDateObj property _year property _calStr
on new (me)
me._months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"] me._weekdayStr = "Mo Tu We Th Fr Sa Su" me._refDateObj = date(1905,1,2) return me
end
on make (me, year)
me._year = year me._calStr = "" -- prefill cal string with spaces emptyLine = bytearray(68,32).readRawString(68)&RETURN repeat with i = 1 to 38 put emptyLine after _calStr end repeat me._write (string(year), 32, 1) repeat with i = 1 to 12 me._writeMonth(i) end repeat return me._calStr
end
on _writeMonth (me, monthNum)
xOffset = (monthNum-1) mod 3 * 24
yOffset = (monthNum-1)/3 * 9 + 2
pre = (20 - me._months[monthNum].length)/2
me._write(me._months[monthNum], 1+xOffset+pre, 1+yOffset)
me._write(me._weekdayStr, 1+xOffset, 2+yOffset)
y = 3
x = ((date(me._year, monthNum, 1) - me._refDateObj) mod 7)+1
repeat with i = 1 to 31
if date(me._year, monthNum, i).month<>monthNum then exit repeat
dayStr = string(i)
if i<10 then put " " before dayStr
me._write(dayStr, x*3-2+xOffset, y+yOffset)
if x=7 then
y = y+1
x = 1
else
x = x+1
end if
end repeat
end
on _write (me, str, x, y)
put str into char x to x+str.length-1 of line y of _calStr
end</lang>
Usage: <lang lingo>calObj = script("Calendar").new() calStr = calObj.make(1969) put calStr</lang>
- Output:
1969
January February March
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
Lua
<lang Lua>function print_cal(year)
local months={"JANUARY","FEBRUARY","MARCH","APRIL","MAY","JUNE",
"JULY","AUGUST","SEPTEMBER","OCTOBER","NOVEMBER","DECEMBER"}
local daysTitle="MO TU WE TH FR SA SU"
local daysPerMonth={31,28,31,30,31,30,31,31,30,31,30,31}
local startday=((year-1)*365+math.floor((year-1)/4)-math.floor((year-1)/100)+math.floor((year-1)/400))%7
if year%4==0 and year%100~=0 or year%400==0 then
daysPerMonth[2]=29
end
local sep=5
local monthwidth=daysTitle:len()
local calwidth=3*monthwidth+2*sep
function center(str, width)
local fill1=math.floor((width-str:len())/2)
local fill2=width-str:len()-fill1
return string.rep(" ",fill1)..str..string.rep(" ",fill2)
end
function makeMonth(name, skip,days)
local cal={
center(name,monthwidth),
daysTitle
}
local curday=1-skip
while #cal<9 do
line={}
for i=1,7 do
if curday<1 or curday>days then
line[i]=" "
else
line[i]=string.format("%2d",curday)
end
curday=curday+1
end
cal[#cal+1]=table.concat(line," ")
end
return cal
end
local calendar={}
for i,month in ipairs(months) do
local dpm=daysPerMonth[i]
calendar[i]=makeMonth(month, startday, dpm)
startday=(startday+dpm)%7
end
print(center("[SNOOPY]",calwidth),"\n")
print(center("--- "..year.." ---",calwidth),"\n")
for q=0,3 do
for l=1,9 do
line={}
for m=1,3 do
line[m]=calendar[q*3+m][l]
end
print(table.concat(line,string.rep(" ",sep)))
end
end
end
print_cal(1969)</lang>
- Output:
[SNOOPY]
--- 1969 ---
JANUARY FEBRUARY MARCH
MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
APRIL MAY JUNE
MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
JULY AUGUST SEPTEMBER
MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
OCTOBER NOVEMBER DECEMBER
MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
M2000 Interpreter
Set console to 80 character by 43 lines. Produce calendar line by line, three columns of months.
To simulate printing in paper we print at the bottom line, so every new line scroll up the console screen.
Module Calendar get the Year and the Language Id (1033 for English, 1032 for Greek and any other which support the Window OS).
<lang M2000 Interpreter> Module Calendar (Year, LocaleId) {
Function GetMax(Year, Month) {
a=date(str$(Year)+"-"+str$(Month)+"-1")
max=32
do {
max--
m=val(str$(cdate(a,0,0,max), "m"))
} until m=Month
=max+1
}
Function SkipMo(Year, Month) {
a=date(str$(Year)+"-"+str$(Month)+"-1")
=(val(str$(a, "w"))-8) mod 7 +7
}
Function Title$(a$) {
=Ucase$(left$(a$,1))+Lcase$(Mid$(a$, 2))
}
locale LocaleId
Cursor 0,Height-1 ' last line, so each new line scroll all lines up
Print Over $(2), Year
Print
For j=0 to 3 {
Print
For i=1 to 3 {
Month=i+j*3
Print Part @((i-1)*29-1), $(2,22), Title$(Ucase$(locale$(55+Month)))
}
Print
Dim Skip(1 to 3), Count(1 to 3), D(1 to 3)=1
For i=1 to 3 {
Month=i+j*3
if i>1 Then Print String$(" ",8);
For k=42 to 48 :Print Title$(Ucase$(Left$(locale$(k),2)));" ";:Next k
Skip(i)=SkipMo(Year, Month)
Count(i)=GetMax(Year, Month)
}
Print
For i=1 to 3 {
if i>1 Then Print String$(" ",8);
For k=1 to 7 {
skip(i)--
if skip(i)>0 Then Print " "; :continue
Count(i)--
Print format$("{0::-2} ", d(i));
d(i)++
}
}
Print
Print @(0)
For m=1 to 5 {
For i=1 to 3 {
if i>1 Then Print String$(" ",8);
For k=1 to 7 {
Count(i)--
if Count(i)<0 Then Print " "; : Continue
Print format$("{0::-2} ", d(i));
d(i)++
}
}
Print
}
}
} Form 80,43 Calendar 1969, 1033 ' English k=Key$ ' wait key Calendar 2018, 1032 ' Greek </lang>
Mathematica/Wolfram Language
Overview
This task seems to conflate 3 different programming challenges
1. Transforming a nested, hierarchical structure of data into linear presentation structure (a stream of printable characters)
2. Acquiring/generating the calendar data that will be presented (specifically, support for arbitrary years and for non-Gregorian schemes)
3. Constraining the presentation according to some configuration information (e.g. terminal width and ASCII character codes).
Additionally, there seems to be some implicit desire for presentation decoration options (e.g. grid dividers, spacing between elements, addition of a banner) My strategy is to separate these various domains into separate families of functions that can be composed to solve the problem of actually generating a specific calendar.
1. Grid structure functions
The following functions were motivated by the recognition that a calendar is really a set of nested grid structures. The overall calendar is just a few elements arranged in a column, e.g. banner, year/title, and a grid of months. The grid of months is a rectangular arrangement of individual months that are all styled similarly but vary a bit in the data they contain. Each month is a grid of 3 elements in a column: the month name as title, a header row of the names of the weekdays, and a grid of integers representing the specific days/dates. Each day is a cell that could be considered an atomic element or could be considered a 1x1 matrix. The latter allows for cells to have all of the styling options of the higher level grid elements.
At each level, a grid is "regular" in the sense that its elements are constrained to columns and rows with nothing "spilling out" of those columns/rows. By nesting the grids in various ways, you can achieve "non-regular" patterns.
Mathematica has many wrappers for handling the presentation of such structured and nested data, including Grid, TextGrid, Row, Column, and Multicolumn. However, these are just wrappers that a Mathematica Notebook knows how to present in the UI. You could apply Normal or ToString to these wrappers to get a true textual representation, but the results are not easily predictable and are extremely sensitive to the options you have included in the wrappers. Since we are going to want fine level control over spacing, alignment, borders, etc, using these wrappers would be, unfortunately, not very helpful for providing a plain, textual output.
Therefore, I've chosen to implement "raw" textual grids from scratch with a function called DataGrid. There are two versions of DataGrid. The first version allows you to specify exactly the height and width of each row and column in terms of number of string characters. The second version allows you to specify just the "macro" grid dimensions, and the actual size of each cell will be determined by calculating the width among cells in the same column and max height among cells in the same row. With those max values, it calls the first GridData function. The cell dimensions do not account for spacing and borders, which are added after the cell is scaled to the correct character dimensions. A variety of decoration options can also be supplied. The effect of these will be demonstrated in the examples below. Each version acts on a list of cells that are already rectangular arrays of data (though their dimensions obviously don't already need to be identical--that's part of the job of DataGrid, and it's why DataGrid can be composed/nested). Also, the list of cells is "flat", and its length does not need to conform to an exact rectangle (again, this is a job of DataGrid).
<lang Mathematica>DataGrid[
rowHeights:{__Integer},
colWidths:{__Integer},
spacings:{_Integer,_Integer},
borderWidths:{{_Integer,_Integer},{_Integer,_Integer}},
options_Association,
data:{__List?MatrixQ}]:=
With[
(*Need to make sure we have sensible defaults for the decoration options.*)
{alignment=Lookup[options,"alignment",{0,0}],
background=Lookup[options,"background"," "],
dividers=Lookup[options,"dividers",{" "," "," "}],
border=Lookup[options,"border"," "],
dims={Length[rowHeights],Length[colWidths]}},
(*Pad the data so that it will fit into the specified rectangle (list of lists).*)
With[{augmentedData=PadRight[data,Times@@dims,{{{background}}}]},
(*Create a matrix of dimensions based on desired rectangle. Once we have a matrix of cells we can "thread" these two matrices and use that data to coerce each cell into its final dimensions.*)
With[{cellDims=ArrayReshape[Outer[List,rowHeights,colWidths],{Times@@dims,2}]},
(*MatrixAlign, defined below, rescales and aligns each cell's data.*)
With[{undecoratedGrid=Partition[MapThread[MatrixAlign[alignment,#1,background][#2]&, {cellDims,augmentedData}],dims2]},
(*Add the spacing to each row.*)
With[{dividedRows=MapThread[Transpose[Riffle[#2,{ConstantArray[dividers2,{#1,spacings2}]},{2,-2,2}]]&, {rowHeights,undecoratedGrid}]},
(*Add the spacing between rows.*)
With[{dividedColumn=Riffle[dividedRows,{Transpose[Riffle[ConstantArray[dividers1,{spacings1,#}]&/@colWidths,{ConstantArray[dividers3,spacings]},{2,-2,2}]]},{2,-2,2}]},
(*Assemble all cell rows into actual character rows. We now have one large matrix.*)
With[{dividedGrid=Catenate[Map[Flatten,dividedColumn,{2}]]},
(*Add borders.*)
ArrayPad[dividedGrid,borderWidths,border]]]]]]]];
DataGrid[dims:{_Integer,_Integer},spacings_,borderWidths_,options_,data:{__List?MatrixQ}]:= (*Calculate the max height for each row and max width for each column, and then just call the previous DataGrid function above.*)
With[
{rowHeights=Flatten@BlockMap[Max[Part[#,All,All,1]]&,ArrayReshape[Dimensions/@data,Append[dims,2],1],{1,dims2}],
colWidths=Flatten@BlockMap[Max[Part[#,All,All,2]]&,ArrayReshape[Dimensions/@data,Append[dims,2],1],{dims1,1}]},
DataGrid[rowHeights,colWidths,spacings,borderWidths,options,data]];
(*This could probably be simplified, but I like having all of the aligment options explicit and separate for testability.*) MatrixAlign[{-1,-1},dims_,pad_]:=PadRight[#,dims,pad]&; MatrixAlign[{-1,0},dims_,pad_]:=PadRight[CenterArray[#,{Dimensions[#]1,dims2},pad],dims,pad]&; MatrixAlign[{-1,1},dims_,pad_]:=PadRight[PadLeft[#,{Dimensions[#]1,dims2},pad],dims,pad]&; MatrixAlign[{0,-1},dims_,pad_]:=CenterArray[PadRight[#,{Dimensions[#]1,dims2},pad],dims,pad]&; MatrixAlign[{0,0},dims_,pad_]:=CenterArray[#,dims,pad]&; MatrixAlign[{0,1},dims_,pad_]:=CenterArray[PadLeft[#,{Dimensions[#]1,dims2},pad],dims,pad]&; MatrixAlign[{1,-1},dims_,pad_]:=PadLeft[PadRight[#,{Dimensions[#]1,dims2},pad],dims,pad]&; MatrixAlign[{1,0},dims_,pad_]:=PadLeft[CenterArray[#,{Dimensions[#]1,dims2},pad],dims,pad]&; MatrixAlign[{1,1},dims_,pad_]:=PadLeft[#,dims,pad]&;
(*While the grid functions make no assumptions about the format of the data, we will be using them with string/character data, and we will eventually want to output a calendar as a single large string. AsString gives us a standard method for transforming a matrix of characters into a string with rows delimited by newlines.*) AsString[matrix_List?MatrixQ]:=StringRiffle[matrix,"\n",""];</lang>
To illustrate how DataGrid works, I'll create some sample data-grids and assemble them together into a larger data-grid, and then I'll use DataGrid itself to present all of these results. Notice the options for alignment, borders, spacings, etc.
<lang Mathematica>DataA=Template:"A"; GridA = DataGrid[{2},{5},{0,0},{{1,1},{1,1}},<|"border"->"*","alignment"->{1,-1}|>,{DataA}]; DataB = {{"B"},{"B"}}; GridB =
DataGrid[{4,3},{4,8},{2,3},{{0,0},{0,0}},<|"background"->".","alignment"->{0,1},"dividers"->{"-","|","+"}|>,{DataB,DataB,DataB}];
GridC =
DataGrid[{2,3},{2,3},{{0,1},{2,3}},<|"border"->"@","alignment"->{0,0},"dividers"->{"/","/","/"}|>,{GridA,GridB,GridA,GridB,GridA}];
DataGrid[{2,3},{2,12},{{0,0},{0,0}},<||>,{Template:"A",Template:"B",Template:"C",GridA,GridB,GridC}]//AsString</lang>
- Output:
A B C
@@ ///....|||......../// @@@
@@ ///...B|||.......B/// @@@
@@ ******* ///...B|||.......B///*******@@@
@@ * * ///....|||........///* *@@@
@@ *A * ///----+++--------///*A *@@@
@@ ******* ///----+++--------///*******@@@
....|||........ @@ ///...B|||......../// @@@
...B|||.......B @@ ///...B|||......../// @@@
******* ...B|||.......B @@ ///....|||......../// @@@
* * ....|||........ @@///////////////////////////////////////////@@@
*A * ----+++-------- @@///////////////////////////////////////////@@@
******* ----+++-------- @@....|||......../// /// @@@
...B|||........ @@...B|||.......B/// /// @@@
...B|||........ @@...B|||.......B/// ******* /// @@@
....|||........ @@....|||......../// * * /// @@@
@@----+++--------/// *A * /// @@@
@@----+++--------/// ******* /// @@@
@@...B|||......../// /// @@@
@@...B|||......../// /// @@@
@@....|||......../// /// @@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
HeaderGrid is a helper that defers the "gridding" of the individual header cells and data cells to functions that get passed in. There are some assumptions about presentation that feed into this design, but if your requirements differ, it's fairly easy to follow this same basic pattern of accepting functions that do the lower level work--you would just need to organize that work differently.
<lang Mathematica>HeadedGrid[
finalSpacings:{_Integer,_Integer},
finalBorderWidths:{{_Integer,_Integer},{_Integer,_Integer}},
finalOptions_Association,
headerCellGridder_Function,
rawHeaders:{__String},
dataCellGridder_Function,
rawData:{__String}]:=
With[
{finalDims={Ceiling[(Length@rawData+Length@rawHeaders)/Length@rawHeaders],Length@rawHeaders},
headerCells=headerCellGridder/@List/@List/@Characters[rawHeaders],
dataCells=dataCellGridder/@List/@List/@Characters[rawData]},
DataGrid[finalDims,finalSpacings,finalBorderWidths,finalOptions,Join[headerCells,dataCells]]];
(*An example with a few decorations:*) HeadedGrid[
{1,1},
{{1,1},{1,1}},
<|"dividers"->{"-","|","+"},"border"->"*"|>,
DataGrid[{3},{6},{0,0},{{0,0},{0,0}},<|"background"->"-"|>,#]&,
{"Su","Mo","Tu","We","Th","Fr","Sa"},
DataGrid[{3},{4},{0,0},{{0,0},{0,0}},<|"alignment"->{-1,1}|>,#]&,
ToString/@Range[31]]//AsString</lang>
- Output:
************************************************** *------|------|------|------|------|------|------* *--Su--|--Mo--|--Tu--|--We--|--Th--|--Fr--|--Sa--* *------|------|------|------|------|------|------* *------+------+------+------+------+------+------* * 1 | 2 | 3 | 4 | 5 | 6 | 7 * * | | | | | | * * | | | | | | * *------+------+------+------+------+------+------* * 8 | 9 | 10 | 11 | 12 | 13 | 14 * * | | | | | | * * | | | | | | * *------+------+------+------+------+------+------* * 15 | 16 | 17 | 18 | 19 | 20 | 21 * * | | | | | | * * | | | | | | * *------+------+------+------+------+------+------* * 22 | 23 | 24 | 25 | 26 | 27 | 28 * * | | | | | | * * | | | | | | * *------+------+------+------+------+------+------* * 29 | 30 | 31 | | | | * * | | | | | | * * | | | | | | * **************************************************
MonthGrid will use HeadedGrid for the main part of the month, and it will take another gridding function to handle the title (month name). I could have simplified the method signature by having the caller pass in a HeadedGrid function directly, but I liked exposing more control with this function. MonthGrid offers the convenience of specifying a leading offset for the month (month and week boundaries don't typically align, so this allows for starting on the correct day of the week without requiring the caller to munge the data).
<lang Mathematica>MonthGrid[
finalSpacings:{_Integer,_Integer},
finalBorderWidths:{{_Integer,_Integer},{_Integer,_Integer}},
finalOptions_Association,
titleGridder_Function,
monthName_String,
monthSpacings:{_Integer,_Integer},
monthBorderWidths:{{_Integer,_Integer},{_Integer,_Integer}},
monthOptions_Association,
headerCellGridder_Function,
weekdayNames:{__String},
dayCellGridder_Function,
dayOffset_Integer,
days:{__String}]:=
DataGrid[{2,1},finalSpacings,finalBorderWidths,finalOptions,
{titleGridder[List/@List/@Characters[monthName]],
HeadedGrid[monthSpacings,monthBorderWidths,monthOptions,headerCellGridder,weekdayNames,dayCellGridder,ArrayPad[days,{dayOffset,0},""]]}];
(*A compact example:*) MonthGrid[{0, 0}, {{0, 0}, {0, 0}}, <||>,
DataGrid[{1, Length@#}, {0, 1}, {{1, 1}, {0, 0}}, <||>,ToUpperCase@#] &,
"September", {0, 1}, {{0, 0}, {0, 0}}, <||>,
DataGrid[{1}, {2}, {0, 0}, {{0, 0}, {0, 0}}, <||>, #] &,
{"Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"},
DataGrid[{1}, {2}, {0, 0}, {{0, 0}, {0, 0}}, <|"alignment" -> {-1, 1}|>, #] &,
2, ToString /@ Range[31]]//AsString</lang>
- Output:
S E P T E M B E R
Su Mo Tu We Th Fr Sa
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31
At this point we have everything we need to generate a calendar. Since ASCII art is just a matrix of characters, we could trivially handle the display of the Snoopy banner. To make things more interesting, let's instead just display a magnified version of the calendar year as a banner.
FractalChars takes a string and rasterizes each character and then replaces each black pixel with the original character. The output is a matrix of characters suitable as a datum in the argument to DataGrid.
<lang Mathematica>FractalChars[rasterSize_,font_,char_String/;1==StringLength[char]]:=
ReplaceAll[ImageData[ImageCrop[Binarize[Rasterize[Style[char,FontFamily->font],RasterSize->rasterSize]]]],{1->" ",0->char}];
FractalChars[rasterSize_,font_,word_String]:=FractalChars[rasterSize,font,#]&/@Characters[word];
(*And here's the convenience function that ultimately calls DataGrid.*) BannerGrid[finalSpacings_,finalBorderWidths_,finalOptions_,charGridder_Function,rasterSize_,text_String]:= With[
{charData=FractalChars[rasterSize,"Courier",text]},
DataGrid[{1,StringLength@text},finalSpacings,finalBorderWidths,finalOptions,charGridder/@List/@charData]];
(*An example banner.*) BannerGrid[{0,5},{{1,1},{0,0}},<|"border"->"X"|>,DataGrid[{1,1},{0,0},{{1,1},{0,0}},<||>,#]&,20,"1969"]//AsString</lang>
- Output:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
11 9999 666666 9999
1111111 99999999 66666666 99999999
11111111 9999999999 66666666 9999999999
11111111 9999 9999 6666 9999 9999
111 9999 999 6666 9999 999
111 999 999 666 999 999
111 999 999 6666 999 999
111 999 999 666 999 999
111 999 9999 666 66666 999 9999
111 9999 9999 66666666666 9999 9999
111 9999 99999 666666666666 9999 99999
111 99999999999 66666 6666 99999999999
111 9999999999 6666 666 9999999999
111 99 999 6666 666 99 999
111 9999 6666 666 9999
111 999 6666 666 999
111 9999 666 666 9999
111 9999 6666 6666 9999
11111111111 99999 6666 6666 99999
111111111111 99999999 6666666666 99999999
111111111111 99999999 6666666 99999999
99 6 99
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
2. Calendar data functions
Fortunately, Mathematica has many powerful calendar-related functions. Unfortunately, the semantics of calendars is sufficiently complicated that there is no practical way to create just a few standard data generators that will cover all of the implied cases. For example, the seemingly simple concept of "first day of the year" is ambiguous. The Jewish year uses one start day for religious holidays and another day for civil/secular purposes. The task definition referenced the switch-over from the Julian calendar to the Gregorian calendar, but this did not happen simultaneously around the globe, and many regions adopted the Gregorian calendar surprisingly recently. Assigning a number to a year is not standardized across calendars (e.g. consider the Chinese and Jewish calendars). The Cotsworth Calendar (effectively the International Fixed Calendar) has days that aren't assigned to any month or week--they're just dangling special days. So, we can provide some simple, general helper functions, but we assume that the calendar maker will be responsible for dealing with special cases.
<lang Mathematica>(*Mathematica makes it easy to get month names and day names for several standard calendars.*) MonthNames[]:=MonthNames["Gregorian"]; MonthNames[calType_]:=Lookup[CalendarData[calType,"PropertyAssociation"],"MonthNames"];
WeekdayNames[]:=WeekdayNames["Gregorian"]; WeekdayNames[calType_]:=Lookup[CalendarData[calType,"PropertyAssociation"],"DayNames"];
(*Since month boundaries don't align with week boundaries on most calendars, we need to pad month data with empty cells. I was tempted to create a function that would generate offsets for a given year on a given calendar, but even that required too many decisions on the part of the calendar maker to be feasible. So, I removed all of the calendar semantics. If you provide the fixed small group length (week length), the initial offset, and the list of the large group lengths (month lengths), this function will give you the offsets you need for each large group (month).*) Offsets[groupLength_,firstOffset_,lengths_List]:=FoldPairList[{#1,Mod[#1+#2,groupLength]}&,firstOffset,lengths];</lang>
For the year 1969 on the Gregorian calendar, Mathematica can give us all of the data we need.
<lang Mathematica>Data1969=GroupBy[Most[DateRange[DateObject[{1969,1,1}],DateObject[{1+1969,1,1}]]],DateValue[#,"MonthName"]&]; InitialOffset1969=QuantityMagnitude[DateDifference[PreviousDate[DateObject[{1969,1,1}],Sunday],DateObject[{1969,1,1}]]]; MonthLengths1969=Length/@Values[Data1969]; Offsets1969=Offsets[7,InitialOffset1969,MonthLengths1969]; MonthNames1969=Keys@Data1969;
YearBanner1969=BannerGrid[{0,0},{{1,1},{0,0}},<|"border"->"X"|>,DataGrid[{1,1},{1,1},{{1,1},{5,5}},<||>,#]&,13,"1969"];
MonthGrids1969=
With[
{monthNameGridder=DataGrid[{1,Length@#},{0,1},{{1,1},{0,0}},<||>,ToUpperCase@#]&,
dayNameGridder=DataGrid[{1},{2},{0,0},{{0,0},{0,0}},<|"alignment"->{0,-1}|>,#]&,
dayGridder=DataGrid[{1},{2},{0,0},{{0,0},{0,0}},<|"alignment"->{-1,1}|>,#]&},
With[
{monthGridder=
MonthGrid[{0,0},{{0,0},{0,0}},<||>,monthNameGridder,#1,
{0,1},{{0,0},{0,0}},<||>,dayNameGridder,WeekdayNames[],
dayGridder,#2,#3]&},
MapThread[monthGridder,{MonthNames1969,Offsets1969,Map[ToString,Range/@MonthLengths1969,{2}]}]]];
MonthsGrid1969=DataGrid[{3,4},{1,4},{{0,0},{0,0}},<||>,MonthGrids1969];
DataGrid[{2,1},{2,0},{{0,0},{0,0}},<||>,{YearBanner1969,MonthsGrid1969}]//AsString</lang>
- Output:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1 99 66 99
11111 999999 66666 999999
11111 999 999 666 999 999
11 99 99 666 99 99
11 99 99 66 99 99
11 99 999 66 99 999
11 999 999 6666666 999 999
11 99999999 66666666 99999999
11 999999 666 66 999999
11 99 66 666 99
11 99 66 666 99
11 99 66 66 99
1111111 999 6666666 999
11111111 99999 66666 99999
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
J A N U A R Y F E B R U A R Y M A R C H A P R I L
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 1 2 3 4 5
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8 6 7 8 9 10 11 12
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15 13 14 15 16 17 18 19
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22 20 21 22 23 24 25 26
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30
30 31
M A Y J U N E J U L Y A U G U S T
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 1 2 3 4 5 6 7 1 2 3 4 5 1 2
4 5 6 7 8 9 10 8 9 10 11 12 13 14 6 7 8 9 10 11 12 3 4 5 6 7 8 9
11 12 13 14 15 16 17 15 16 17 18 19 20 21 13 14 15 16 17 18 19 10 11 12 13 14 15 16
18 19 20 21 22 23 24 22 23 24 25 26 27 28 20 21 22 23 24 25 26 17 18 19 20 21 22 23
25 26 27 28 29 30 31 29 30 27 28 29 30 31 24 25 26 27 28 29 30
31
S E P T E M B E R O C T O B E R N O V E M B E R D E C E M B E R
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 1 2 3 4 1 1 2 3 4 5 6
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
It's a bit more involved to create the data for a calendar that displays the switch from Julian to Gregorian. A few major European Catholic countries made the switch in 1582, so I'll generate data for that scenario. The switch happened in October, with Thursday Oct 4 being followed by Friday Oct 15. Mathematica provides tools to both fetch the calendar data and then fiddle with the structures so that I can highlight the relevant month and dates.
<lang Mathematica>Dates1582France=
Join[
DateRange[DateObject[{1582,1,1},CalendarType->"Julian"],DateObject[{1582,10,4},CalendarType->"Julian"],CalendarType->"Julian"],
DateRange[DateObject[{1582,10,15}],DateObject[{1582,12,31}]]];
Data1582France=GroupBy[Dates1582France,DateValue[#,"MonthName"]&]; InitialOffset1582France=
QuantityMagnitude[DateDifference[
PreviousDate[CalendarConvert[DateObject[{1582,1,1},CalendarType->"Julian"],"Gregorian"],Sunday],
CalendarConvert[DateObject[{1582,1,1},CalendarType->"Julian"],"Gregorian"]]];
MonthLengths1582France=Length/@Values[Data1582France]; DatesByMonth1582France=Map[DateString[#,"DayShort"]&,Values[Data1582France],{2}]; Offsets1582France=Offsets[7,InitialOffset1582France,MonthLengths1582France]; MonthNames1582France=Keys@Data1582France;
With[
{yearBanner=BannerGrid[{0,0},{{1,1},{0,0}},<|"border"->"X"|>,DataGrid[{1,1},{1,1},{{1,1},{5,5}},<||>,#]&,13,"1582"],
monthNameGridder=DataGrid[{1,Length@#},{0,1},{{1,1},{0,0}},<||>,ToUpperCase@#]&,
dayNameGridder=DataGrid[{1},{2},{0,0},{{0,0},{0,0}},<|"alignment"->{0,-1}|>,#]&,
dayGridder=DataGrid[{1},{2},{0,0},{{0,0},{0,0}},<|"alignment"->{-1,1}|>,#]&},
With[
{monthGridder=MonthGrid[{0,0},{{0,0},{0,0}},<||>,monthNameGridder,#1,{0,1},{{0,0},{0,0}},<||>,dayNameGridder,WeekdayNames[],dayGridder,#2,#3]&},
With[
{monthCells=MapThread[monthGridder,{MonthNames1582France,Offsets1582France,Map[ToString,Range/@MonthLengths1582France,{2}]}],
octoberCells=DataGrid[{1},{2},{0,0},Switch[#,"4"|"15",{{1,1},{1,1}},_,{{0,0},{0,0}}],<|"alignment"->{-1,1},"border"->"|","background"->Switch[#,"4"|"15","|",_," "]|>,{{Characters[#]}}]&/@ArrayPad[DatesByMonth1582France10,{Offsets1582France10,0},""]},
With[
{octoberGrid=
DataGrid[{2,1},{0,0},{{1,1},{1,1}},<|"border"->"*"|>,
{monthNameGridder[{{Characters[MonthNames1582France10]}}],
DataGrid[{1+Ceiling[Length@octoberCells/7],7},{0,1},{{0,0},{0,0}},<|"alignment"->{0,0}|>,octoberCells]}]},
DataGrid[{2,1},{2,0},{{0,0},{0,0}},<||>,{yearBanner,DataGrid[{3,4},{2,4},{{0,0},{0,0}},<|"alignment"->{-1,0}|>,ReplacePart[monthCells,10->octoberGrid]]}]]]]]//AsString</lang>
- Output:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1 55555555 888 22
11111 5555555 888888 222222
11111 55 888 888 222 222
11 55 88 888 22 22
11 555555 88 888 22
11 55555555 888 88 22
11 5 555 8888888 222
11 555 888888 222
11 55 8888 888 222
11 555 88 888 222
11 55 88 888 222
11 55555555 888 888 222 2
1111111 5555555 8888888 22222222
11111111 888888 22222222
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
J A N U A R Y F E B R U A R Y M A R C H A P R I L
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 1 2 3 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 25 26 27 28 29 30 31 29 30
M A Y J U N E J U L Y A U G U S T
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6 7 1 2 3 4
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14 5 6 7 8 9 10 11
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21 12 13 14 15 16 17 18
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28 19 20 21 22 23 24 25
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31 26 27 28 29 30 31
**************************
S E P T E M B E R * * N O V E M B E R D E C E M B E R
* OCTOBER *
Su Mo Tu We Th Fr Sa * * Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 * |||| |||| * 1 2 3 4 5 6 1 2 3 4
2 3 4 5 6 7 8 * 1 2 3 ||4| |15| 16* 7 8 9 10 11 12 13 5 6 7 8 9 10 11
9 10 11 12 13 14 15 * |||| |||| * 14 15 16 17 18 19 20 12 13 14 15 16 17 18
16 17 18 19 20 21 22 *17 18 19 20 21 22 23* 21 22 23 24 25 26 27 19 20 21 22 23 24 25
23 24 25 26 27 28 29 *24 25 26 27 28 29 30* 28 29 30 26 27 28 29 30 31
30 *31 *
* *
**************************
3. Output configuration
The only remaining task is to automate the fitting of calendar data to a specified width. We could approach this in the most general way, which would allow us to fit an arbitrary data set into any pre-specified rectangle. This approach would need to actually iterate over the possible dimensions for the large scale grid, creating the grid each time and computing its dimensions. It would stop when it found dimensions that fit (for some definition of "fit"). Alternatively, if we pick a specific set of formatting options such that each month has a standard size, it's a simple matter of arithmetic to determine a grid that fits. I'm going to implement something closer to the more general approach, but only concerned with widths, and only doing the grid generation in an abstract way.
WidestFitDimensions will output data about the best fit it found, including the dimensions (which could be used in DataGrid) and the width of the best fit grid. There is no guarantee that a strict fit can be found, so it also provides the actual width of the best fit, and the user can determine what to do with the results. One could create another helper gridding function that uses WidestFitDimensions to automatically generate the grid, but I've already demonstrated such helper functions, so I'll just focus on computing the grid dimensions here.
<lang Mathematica>WidestFitDimensions[
targetWidth_Integer,
columnSpacings_Integer,
leftRightBorderWidths:{_Integer,_Integer},
data:{__List?MatrixQ}]:=
With[
{widths=Last/@Dimensions/@data,
fullWidthOfRow=Total[ArrayPad[Riffle[#,columnSpacings],leftRightBorderWidths,1]]&},
With[
{fullWidthOfGrid=Max[fullWidthOfRow/@#]&},
With[
{isTooLarge=(targetWidth<fullWidthOfGrid[#])&},
With[
{bestFitGrid=
NestWhile[Partition[widths,-1+Last@Dimensions@#,-1+Last@Dimensions@#,{1,1},0]&,
{widths},isTooLarge[#]&,1,-1+Length@widths]},
<|"dimensions"->Dimensions@bestFitGrid,"width"->fullWidthOfGrid@bestFitGrid|>]]]];
</lang>
Checking best fit for our 1969 calendar for a few widths. <lang Mathematica>(*Choose a best fit for our 1969 calendar data on 80 character wide display.*) WidestFitDimensions[80,4,{0,0},MonthGrids1969]</lang>
- Output:
<|dimensions->{4,3},width->68|>
<lang Mathematica>(*Choose a best fit for our 1969 calendar data on 132 character wide display.*) WidestFitDimensions[132,4,{0,0},MonthGrids1969]</lang>
- Output:
<|dimensions->{3,5},width->116|>
<lang Mathematica>(*Can we fit into a 20-character wide display?*) WidestFitDimensions[20,4,{0,0},MonthGrids1969]</lang>
- Output:
<|dimensions->{12,1},width->20|>
Nim
<lang nim>import times import strformat
proc printCalendar(year, nCols: int) =
var rows = 12 div nCols
var date = initDateTime(1, mJan, year, 0, 0, 0, utc())
if rows mod nCols != 0:
inc rows
var offs = getDayOfWeek(date.monthday, date.month, date.year).int
var mons: array[12, array[8, string]]
for m in 0..11:
mons[m][0] = &"{$date.month:^21}"
mons[m][1] = " Su Mo Tu We Th Fr Sa"
var dim = getDaysInMonth(date.month, date.year)
for d in 1..42:
var day = d > offs and d <= offs + dim
var str = if day: &" {d-offs:2}" else: " "
mons[m][2 + (d - 1) div 7] &= str
offs = (offs + dim) mod 7
date = date + months(1)
var snoopyString, yearString: string
formatValue(snoopyString, "[Snoopy Picture]", "^" & $(nCols * 24 + 4))
formatValue(yearString, $year, "^" & $(nCols * 24 + 4))
echo snoopyString, "\n" , yearString, "\n"
for r in 0..<rows:
var s: array[8, string]
for c in 0..<nCols:
if r * nCols + c > 11:
break
for i, line in mons[r * nCols + c]:
s[i] &= &" {line}"
for line in s:
if line == "":
break
echo line
echo ""
printCalendar(1969, 3)</lang>
- Output:
[Snoopy Picture]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
OCaml
<lang ocaml>#load "unix.cma"
let lang = "en" (* language: English *)
let usage () =
Printf.printf "Usage:\n%s\n" Sys.argv.(0)
let month_pattern =
[ [ 0; 4; 8 ]; [ 1; 5; 9 ]; [ 2; 6; 10 ]; [ 3; 7; 11 ];
(* [ 0; 1; 2; 3; 4; 5 ]; [ 6; 7; 8; 9; 10; 11 ];
[ 0; 1; 2; 3 ]; [ 4; 5; 6; 7 ]; [ 8; 9; 10; 11 ]; *) ]
let month_langs = [
"en", [| "January"; "February"; "March"; "April"; "May"; "June"; "July"; "August"; "September"; "October"; "November"; "December"; |]; "fr", [| "janvier"; "février"; "mars"; "avril"; "mai"; "juin"; "juillet"; "août"; "septembre"; "octobre"; "novembre"; "décembre"; |];
]
let days_lang = [
"en", [| "Monday"; "Tuesday"; "Wednesday"; "Thursday"; "Friday"; "Saturday"; "Sunday" |]; "fr", [| "lundi"; "mardi"; "mercredi"; "jeudi"; "vendredi"; "samedi"; "dimanche" |];
]
let titles_lang = [
"en", "( Snoopy's best pic )"; "fr", "( Le meilleur profil de Snoopy )";
]
let days = List.assoc lang days_lang let month = List.assoc lang month_langs let title = List.assoc lang titles_lang
let monday_first = 6, [| 0; 1; 2; 3; 4; 5; 6 |] let sunday_first = 0, [| 6; 0; 1; 2; 3; 4; 5 |]
let off, days_order = sunday_first let off, days_order = monday_first
let shorten n s =
let len = String.length s in
if n >= len then s else
let n = if s.[n-1] = '\xC3' then n+1 else n in
if n >= len then s else
(String.sub s 0 n)
let pad size c s =
let len = String.length s in let n1 = (size - len) / 2 in let n2 = size - len - n1 in String.make n1 c ^ s ^ String.make n2 c
let days = Array.map (shorten 2) days
let indices ofs =
(ofs / 7, ofs mod 7)
let t_same t1 t2 =
( t1.Unix.tm_year = t2.Unix.tm_year && t1.Unix.tm_mon = t2.Unix.tm_mon && t1.Unix.tm_mday = t2.Unix.tm_mday )
let current_year () =
let t = Unix.localtime (Unix.time ()) in (t.Unix.tm_year + 1900)
let make_month t year month =
let empty_day = 0 in
let m = Array.make_matrix 6 7 empty_day in
let ofs = ref 0 in
for day = 1 to 31 do
let tm =
{ t with
Unix.tm_year = year - 1900;
Unix.tm_mon = month;
Unix.tm_mday = day;
}
in
let _, this = Unix.mktime tm in
if !ofs = 0 then ofs := (this.Unix.tm_wday + off) mod 7;
if t_same this tm then
let i, j = indices !ofs in
m.(i).(j) <- day;
incr ofs;
done;
(m)
let cal ~year =
let empty = [| [| |] |] in let months = Array.make 12 empty in let t = Unix.gmtime 0.0 in for mon = 0 to 11 do months.(mon) <- make_month t year mon; done; (months)
let print_month_label mp =
List.iter (fun i -> let mon = pad 20 ' ' month.(i) in Printf.printf " %s " mon ) mp; print_newline ()
let print_day_label mp =
List.iter (fun _ ->
Array.iter (fun i ->
Printf.printf " %s" days.(i)
) days_order
; print_string " "
) mp;
print_newline ()
let print_mon m mp =
print_month_label mp;
print_day_label mp;
for w = 0 to pred 6 do
print_string begin
String.concat " " begin
List.map (fun i ->
let b = Buffer.create 132 in
for d = 0 to pred 7 do
match m.(i).(w).(d) with
| 0 -> Buffer.add_string b " "
| d -> Printf.kprintf (Buffer.add_string b) " %2d" d
done;
(Buffer.contents b)
) mp
end
end
; print_string "\n"
done
let print_cal ~y:m =
List.iter (fun mon_row -> print_mon m mon_row ) month_pattern
let print_header lbl =
let n = List.length (List.hd month_pattern) in let year_lbl = pad (23*n-7) ' ' lbl in Printf.printf " %s\n" year_lbl
let print_calendar ~year =
print_header title; print_header (string_of_int year); print_cal (cal ~year)
let () =
let args = List.tl (Array.to_list Sys.argv) in
match args with
| [] ->
let year = current_year () in
print_calendar ~year
| ["--year"; _year] ->
let year = int_of_string _year in
print_calendar ~year
| _ ->
usage ()</lang>
- Output:
$ ocaml calendar.ml --year 1969
( Snoopy's best pic )
1969
January May September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 3 4 1 2 3 4 5 6 7
6 7 8 9 10 11 12 5 6 7 8 9 10 11 8 9 10 11 12 13 14
13 14 15 16 17 18 19 12 13 14 15 16 17 18 15 16 17 18 19 20 21
20 21 22 23 24 25 26 19 20 21 22 23 24 25 22 23 24 25 26 27 28
27 28 29 30 31 26 27 28 29 30 31 29 30
February June October
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 1 1 2 3 4 5
3 4 5 6 7 8 9 2 3 4 5 6 7 8 6 7 8 9 10 11 12
10 11 12 13 14 15 16 9 10 11 12 13 14 15 13 14 15 16 17 18 19
17 18 19 20 21 22 23 16 17 18 19 20 21 22 20 21 22 23 24 25 26
24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30 31
30
March July November
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 1 2 3 4 5 6 1 2
3 4 5 6 7 8 9 7 8 9 10 11 12 13 3 4 5 6 7 8 9
10 11 12 13 14 15 16 14 15 16 17 18 19 20 10 11 12 13 14 15 16
17 18 19 20 21 22 23 21 22 23 24 25 26 27 17 18 19 20 21 22 23
24 25 26 27 28 29 30 28 29 30 31 24 25 26 27 28 29 30
31
April August December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 25 26 27 28 29 30 31 29 30 31
Perl
<lang perl>#!/usr/bin/perl -l
use strict; # https://rosettacode.org/wiki/Calendar use warnings; use Time::Local;
my $year = shift // 1969; my $width = shift // 80; my $columns = int +($width + 2) / 22 or die "width too short at $width"; print map { center($_, $width), "\n" } '<reserved for snoopy>', $year; my @months = qw( January February March April May June
July August September October November December );
my @days = qw( 31 28 31 30 31 30 31 31 30 31 30 31 ); (gmtime 86400 + timegm 1,1,1,28,1,$year)[3] == 29 and $days[1]++; my @blocks = map # block per month
{
my $m = center($months[$_], 20) . "\nSu Mo Tu We Th Fr Sa\n" .
"00 00 00 00 00 00 00\n" x 6;
$m =~ s/00/ / for 1 .. (gmtime timegm 1,1,1,1,$_,$year )[6]; # day of week
$m =~ s/00/ center($_, 2) /e for 1 .. $days[$_];
$m =~ s/00/ /g;
[ split /\n/, $m ]
} 0 .. 11;
while( my @row = splice @blocks, 0, $columns ) # print by rows of months
{
print center(join(' ', map shift @$_, @row), $width) for 1 .. @{$row[0]};
}
sub center
{
my ($string, $w) = @_;
sprintf "%${w}s", $string . ' ' x ($w - length($string) >> 1);
}</lang>
- Output:
<reserved for snoopy>
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
When run with args 1969 132 produces:
<reserved for snoopy>
1969
January February March April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8 6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15 13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22 20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30 25 26 27 28 29 30 31 29 30
30 31
July August September October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6 1 2 3 4 1 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
31 30
Phix
Gregorian calender only. <lang Phix>constant year = 1969
include builtins\timedate.e
function centre(string s, integer width) integer pad = width-length(s),
left = floor(pad/2),
right = pad-left
return repeat(' ',left)&s&repeat(' ',right)
end function
function one_month(integer year, integer month, bool sun_to_sat) integer dow = day_of_week(year,month,1) if sun_to_sat then dow = remainder(dow,7)+1 end if sequence ldm = adjust_timedate(iff(month=12?{year+1,1,1,0,0,0,0,0}
:{year,month+1,1,0,0,0,0,0}),
timedelta(days:=-1))
string weekdays = iff(sun_to_sat?"Su Mo Tu We Th Fr Sa"
:"Mo Tu We Th Fr Sa Su")
sequence res = {centre(format_timedate(ldm,"Mmmm"),20),weekdays} integer lastday = ldm[DT_DAY] string line = repeat(' ',20) integer p = dow*3-2
for d=1 to lastday do
line[p..p+1] = sprintf("%2d",d)
p += 3
if dow=7 or d=lastday then
res = append(res,line)
line = repeat(' ',20)
dow = 1
p = 1
else
dow += 1
end if
end for
return res
end function
procedure print_calendar(integer year, integer width, bool sun_to_sat=false) sequence months = repeat(0,12) integer wide = floor((width+2)/22)
printf(1,centre("[Spot Reserved For Snoopy]",width)&"\n")
printf(1,centre(sprintf("%d",year),width)&"\n")
for month=1 to 12 do
months[month] = one_month(year,month,sun_to_sat)
end for
for month=1 to 12 by wide do
for k=1 to 9 do -- (more than enough)
integer any = 0
string line = "", this
for j=0 to wide-1 do
if length(line) then
line &= " "
end if
if k>length(months[month+j]) then
line &= repeat(' ',20)
else
line &= months[month+j][k]
any = 1
end if
end for
if any=0 then exit end if
printf(1,centre(line,width)&"\n")
end for
end for
end procedure
print_calendar(year,80) printf(1,join(repeat("1234567890",8),"")&"\n") print_calendar(year,132,true) printf(1,join(repeat("1234567890",13),"")&"12\n")</lang>
- Output:
[Spot Reserved For Snoopy]
1969
January February March
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
12345678901234567890123456789012345678901234567890123456789012345678901234567890
[Spot Reserved For Snoopy]
1969
January February March April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8 6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15 13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22 20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30 25 26 27 28 29 30 31 29 30
30 31
July August September October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6 1 2 3 4 1 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
31 30
123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012
Phixmonti
<lang Phixmonti>include ..\Utilitys.pmt
32 var space
def bksp /# -- backspace #/
8 tochar print
enddef
def floor
.5 + int
enddef
def center
tostr align
enddef
def startday /# year -- day of the week of january 1 #/
1 - >ps tps 365 * tps 4 / floor + tps 100 / floor - ps> 400 / floor + 7 mod
enddef
def bisiesto? /# year -- true if leap #/
dup 4 mod not over 100 mod and swap 400 mod not or
enddef
def snoopy
0 tcolor 15 bcolor "snoopy.txt" "r" fopen var f
true
while
f fgets
dup -1 == if
drop
f fclose
false
else
print
true
endif
endwhile
15 tcolor 0 bcolor
enddef
( "JANUARY" "FEBRUARY" "MARCH" "APRIL" "MAY" "JUNE" "JULY" "AUGUST" "SEPTEMBER" "OCTOBER" "NOVEMBER" "DECEMBER" ) var months "MO TU WE TH FR SA SU" var daysTitle ( 31 28 31 30 31 30 31 31 30 31 30 31 ) var daysPerMonth daysTitle len nip var monthwidth
def makeMonth var days >ps
monthwidth center daysTitle 2 tolist
1 ps> - 1 + >ps
true
while
( )
7 for drop
tps 1 < tps days > or if
" "
else
tps
endif
2 align 0 put
ps> 1 + >ps
endfor
0 put
len 8 <
endwhile
ps> drop
enddef
def print_cal >ps
tps bisiesto? if daysPerMonth 29 2 set var daysPerMonth endif
5 space over repeat var spaces
snoopy
3 monthwidth * swap 2 * +
"--- " tps tostr " ---" chain chain swap center ? nl
ps> startday var inicio
( )
12 for >ps
months tps get nip inicio
daysPerMonth ps> get nip >ps
tps makeMonth 0 put
inicio ps> + 7 mod var inicio
endfor
( 0 3 ) for var i
8 for var k
3 for var j
i 3 * j + get
k get
list? if
10 tcolor
len for
get print " " print
endfor
drop
bksp
else
11 tcolor
print
endif
drop
spaces print
endfor
nl
endfor
nl
endfor
drop
enddef
2020 print_cal</lang>
- Output:
co;
NM0 l lXM0cM
MM 0M;
Mc ;o: lMMMMMMMXOOOOMX:
ON M `c o :MK
M W '; l :M
o ,N 0` MO
M 'MM. WM' KK
M `:`` 0M .,,,,, K:
O:;cMXcK M, `MMMMMMMMM M
cK,lMoMXlMM`.O 0XXXXXK 0
M MMMlMM;MM:N.0 0o
locOMMMKMMMMMX o` ` M
M :MMMMMlWMoWMK O .Mo cK
M MMMMMMMMMMMO 0 c: : oM
cK MMMMMMMMMMMM 0 :O `M oMl
M ,MMMMMMMOMMW 0 cK ` oM`oWNMMM'
M ,MMM0MMMMM :W ::: cMl'
0M lMNMMMM.`M ,:,MMo lMMMX
KMc NW M0 `WcX;M'
WW .M :
M;O000KMO`
MMMMo::c,:0
'M cM
--- 2020 ---
JANUARY FEBRUARY MARCH
MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU
1 2 3 4 5 1 2 2 3 4 5 6 7 8
6 7 8 9 10 11 12 3 4 5 6 7 8 9 9 10 11 12 13 14 15
13 14 15 16 17 18 19 10 11 12 13 14 15 16 16 17 18 19 20 21 22
20 21 22 23 24 25 26 17 18 19 20 21 22 23 23 24 25 26 27 28 29
27 28 29 30 31 24 25 26 27 28 29 30 31
APRIL MAY JUNE
MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
JULY AUGUST SEPTEMBER
MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
OCTOBER NOVEMBER DECEMBER
MO TU WE TH FR SA SU MO TU WE TH FR SA SU MO TU WE TH FR SA SU
1 2 3 4 2 3 4 5 6 7 8 1 2 3 4 5 6
5 6 7 8 9 10 11 9 10 11 12 13 14 15 7 8 9 10 11 12 13
12 13 14 15 16 17 18 16 17 18 19 20 21 22 14 15 16 17 18 19 20
19 20 21 22 23 24 25 23 24 25 26 27 28 29 21 22 23 24 25 26 27
26 27 28 29 30 31 30 28 29 30 31
=== Press any key to exit ===
PicoLisp
This "calendar" is nicely formatted, and fits into 20 columns ;-) <lang PicoLisp>(de cal (Year)
(prinl "====== " Year " ======")
(for Dat (range (date Year 1 1) (date Year 12 31))
(let D (date Dat)
(tab (3 3 4 8)
(when (= 1 (caddr D))
(get *Mon (cadr D)) )
(caddr D)
(day Dat *Day)
(when (=0 (% (inc Dat) 7))
(pack "Week " (week Dat)) ) ) ) ) )
(cal 1969)</lang> Output:
====== 1969 ======
Jan 1 Wed
2 Thu
3 Fri
4 Sat
5 Sun
6 Mon Week 2
7 Tue
....
28 Sat
29 Sun
30 Mon Week 27
Jul 1 Tue
2 Wed
3 Thu
4 Fri
....
25 Thu
26 Fri
27 Sat
28 Sun
29 Mon Week 53
30 Tue
31 Wed
Pike
the Calendar in Pike does not handle the transitions from the Julian to the Gregorian calendar, but it handles those separately. the default calendar is ISO, other options are Gregorian, Julian, Bahai, Coptic, Islamic and Discordian.
this script also highlights holidays by region. regions may be chosen by 2-letter country name, as well as some special 'regions': christianity, orthodox, bahai, islamic, among others.
<lang Pike>#!/bin/env pike
int main(int argc, array(string) argv) {
object cal = Calendar; object year; string region = "us";
array date = argv[1..];
if (sizeof(date) && objectp(Calendar[date[0]]) && Calendar[date[0]]->Day)
{
cal = Calendar[date[0]];
date = Array.shift(date)[1];
}
if (sizeof(date) && (int)date[0])
{
year = cal.Year((int)date[0]);
date = Array.shift(date)[1];
}
if (sizeof(date))
region = date[0];
if (!year)
year = cal.Year();
print_year(year, region);
}
array make_month(object month, int field_width, void|string region) {
array out =({});
mapping holidays = ([]);
object today = Calendar.Day();
if (region)
holidays = Calendar.Events.find_region(region)->scan_events(month);
array weekday_names =
sprintf("%*.*s", field_width, field_width, month->week()->days()->week_day_shortname()[*]);
out += ({ ({ month->month_name(), month->month_no(), month->year_name() }) });
out += ({ weekday_names });
out += showday(month->weeks()->days()[*][*], month, today, holidays, field_width);
out += ({ ({ " "*field_width })*sizeof(weekday_names) });
return out;
}
string print_month(object _month, void|int field_width, void|string region) {
if (!field_width)
field_width = 2;
array month = make_month(_month, field_width, region);
string out = "";
out += sprintf("%|*s\n", (field_width+1)*sizeof(month[1])-1, sprintf("%s", month[0][0]));
out += sprintf((month[1..][*]*" ")*"\n");
return out;
}
string print_year(object year, void|string region) {
array output = ({});
int day_width = 2;
int columns = Stdio.stdout.tcgetattr()->columns;
int month_width = sizeof(make_month(year->month(), day_width)[1]) * (day_width+1) - 1;
if (columns < month_width)
columns = month_width;
// try to find an optimal good looking solution to spread the months
// across the terminal width
// for the common calendar of 12 months this is easy but we need to
// account for caledars that have more than 12 months
float max_width = (float)((columns+2)/(month_width+2));
float max_height = ceil(year->number_of_months()/max_width);
float w = max_width;
while(ceil(year->number_of_months()/(w-1)) == max_height)
w--;
foreach(print_month(year->months()[*], day_width, region)/w;; array row)
{
array rows = row[*]/"\n";
int l = max(@sizeof(rows[*]));
foreach(rows; int i;)
{
// the last line of each month is an empty line.
// repeat the line as many times as needed to make the months equally long
rows[i]+=({ rows[i][-1] })*(l-sizeof(rows[i]));
}
rows = Array.transpose(rows);
output += rows[*]*" ";
}
write("%*|s\n", sizeof(output[1]), year->format_nice());
write(output * "\n");
write("\n");
}
string showday(object day, object month, object today, mapping holidays, int field_width) {
string dayname;
if (day->month() == month)
{
dayname = (string)day->month_day();
dayname = " "*(sizeof((string)month->number_of_days())-sizeof(dayname))+dayname;
if (day == today)
dayname = sprintf("%|*.*s", field_width, field_width, dayname);
else
dayname = sprintf("%|*.*s", field_width, field_width, dayname);
if (holidays[day])
dayname = sprintf("%|s", dayname);
}
else
dayname = " "*field_width;
return dayname;
} </lang> Output: (holidays lost in copy-paste)
1969
January February March
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
PL/I
<lang PL/I> calendar: procedure (year) options (main);
declare year character (4) varying;
declare (a, b, c) (0:5,0:6) character (3);
declare name_month(12) static character (9) varying initial (
'JANUARY', 'FEBRUARY', 'MARCH', 'APRIL', 'MAY', 'JUNE',
'JULY', 'AUGUST', 'SEPTEMBER', 'OCTOBER', 'NOVEMBER', 'DECEMBER');
declare i fixed;
declare (mm, mmp1, mmp2) pic '99';
put edit (center('CALENDAR FOR ' || YEAR, 67)) (a);
put skip (2);
do mm = 1 to 12 by 3;
mmp1 = mm + 1; mmp2 = mm + 2;
call prepare_month('01' || mm || YEAR, a);
call prepare_month('01' || mmp1 || YEAR, b);
call prepare_month('01' || mmp2 || YEAR, c);
put skip edit (center(name_month(mm), 23),
center(name_month(mmp1), 23),
center(name_month(mmp2), 23) ) (a);
put skip edit ((3)' M T W T F S S ') (a);
do i = 0 to 5;
put skip edit (a(i,*), b(i,*), c(i,*)) (7 a, x(2));
end;
end;
prepare_month: procedure (start, month);
declare month(0:5,0:6) character (3); declare start character (8); declare i pic 'ZZ9'; declare offset fixed; declare (j, day) fixed binary (31); declare (this_month, next_month, k) fixed binary;
day = days(start, 'DDMMYYYY');
offset = weekday(day) - 1;
if offset = 0 then offset = 7;
month = ;
do j = day by 1;
this_month = substr(daystodate(j, 'DDMMYYYY'), 3, 2);
next_month = substr(daystodate(j+1, 'DDMMYYYY'), 3, 2);
if this_month^= next_month then leave;
end;
i = 1;
do k = offset-1 to offset+j-day-1;
month(k/7, mod(k,7)) = i; i = i + 1;
end;
end prepare_month;
end calendar; </lang> Output:
CALENDAR FOR 1969
JANUARY FEBRUARY MARCH
M T W T F S S M T W T F S S M T W T F S S
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
APRIL MAY JUNE
M T W T F S S M T W T F S S M T W T F S S
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
JULY AUGUST SEPTEMBER
M T W T F S S M T W T F S S M T W T F S S
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
OCTOBER NOVEMBER DECEMBER
M T W T F S S M T W T F S S M T W T F S S
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
Extract for 2013:
CALENDAR FOR 2013
JANUARY FEBRUARY MARCH
M T W T F S S M T W T F S S M T W T F S S
1 2 3 4 5 6 1 2 3 1 2 3
7 8 9 10 11 12 13 4 5 6 7 8 9 10 4 5 6 7 8 9 10
14 15 16 17 18 19 20 11 12 13 14 15 16 17 11 12 13 14 15 16 17
21 22 23 24 25 26 27 18 19 20 21 22 23 24 18 19 20 21 22 23 24
28 29 30 31 25 26 27 28 25 26 27 28 29 30 31
PowerShell
<lang PowerShell> Param([int]$Year = 1969) Begin {
$COL_WIDTH = 21 $COLS = 3 $MONTH_COUNT = 12 $MONTH_LINES = 9
Function CenterStr([string]$s, [int]$lineSize) {
$padSize = [int](($lineSize - $s.Length) / 2)
($(if ($padSize -gt 0) { ' ' * $padSize } else { }) + $s).PadRight($lineSize,' ')
}
Function MonthLines([int]$month) {
$dt = [System.DateTime]::new($Year, $month, 1)
$line = CenterStr $dt.ToString("MMMM") $COL_WIDTH
$line += 'Su Mo Tu We Th Fr Sa'
$line += $(' ' * $dt.DayOfWeek.value__)
$line += (-join ($(1..$($dt.AddMonths(1).AddDays(-1).Day)) | %{ $("" + $_).PadLeft(3) }))
$line = $line.PadRight($MONTH_LINES * $COL_WIDTH)
New-Object –TypeName PSObject –Prop(@{
'Lines'=(0..($MONTH_LINES - 1)) | %{ $_ * $COL_WIDTH } | %{ -join $line[$_..($_ + $COL_WIDTH - 1)] }
'Dt'=$dt})
}
} Process {
Write-Output (CenterStr $Year ($COL_WIDTH * $COLS + 4))
$(0..($MONTH_COUNT / $COLS - 1)) | %{
$fm = $_ * $COLS
$monthNums = $fm..($fm + $COLS - 1) | %{ $_ + 1 }
$months = $monthNums | %{ MonthLines $_ }
$(0..($MONTH_LINES - 1)) | %{
$ml = $_
Write-Output $(-join ($(0..($COLS - 1)) | %{ $(if ($_ -eq 0) { } else {' '}) + $months[$_].Lines[$ml] }))
}
}
} </lang>
Prolog
Call the write_calendar(Year) predicate to print a calendar for a year. Works with swi-prolog and requires the day_of_the_week library call.
<lang prolog>% Write out the calender, because format can actually span multiple lines, it is easier % to write out the static parts in place and insert the generated parts into that format. write_calendar(Year) :- month_x3_format(Year, 1, 2, 3, F1_3), month_x3_format(Year, 4, 5, 6, F4_6), month_x3_format(Year, 7, 8, 9, F7_9), month_x3_format(Year, 10, 11, 12, F10_12),
format('
~w
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
~w
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
~w
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
~w
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
~w ', [Year, F1_3, F4_6, F7_9, F10_12]), !.
% Generate the data for a row of months and then create an atom one row at a time % for all of the months. month_x3_format(Year, M1, M2, M3, F) :- calc_month_rows(Year, M1, M1r), calc_month_rows(Year, M2, M2r), calc_month_rows(Year, M3, M3r), month_x3_format(M1r, M2r, M3r, F).
month_x3_format(M1, M2, M3, ) :- maplist(=(' '), M1), maplist(=(' '), M2), maplist(=(' '), M3). month_x3_format(M1, M2, M3, F) :- month_format(' ', M1, M1r, F1), month_format(F1, M2, M2r, F2), month_format(F2, M3, M3r, F3), atom_concat(F3, '\n', F4), month_x3_format(M1r, M2r, M3r, Fr), atom_concat(F4, Fr, F).
month_format(Orig, [Su,Mo,Tu,We,Th,Fr,Sa|R], R, F) :- maplist(day_format, [Su,Mo,Tu,We,Th,Fr,Sa], Formatted), format(atom(F2), '~w~w~w~w~w~w~w ', Formatted), atom_concat(Orig, F2, F).
day_format(' ', ' ') :- !. day_format(D, F) :- D < 10, format(atom(F), '~w ', D). day_format(D, F) :- D >= 10, format(atom(F), '~w ', D).
% Calculate the days of a month, this is done by getting the first day of the month, % then offsetting that with spaces from the start and then adding 1-NumDaysinMonth and % finally spaces until the end. The maximum possible size is used and then truncated later. calc_month_rows(Year, Month, Result) :- length(Result, 42), % max 6 rows of 7 days month_days(Month, Year, DaysInMonth), day_of_the_week(date(Year, Month, 1), FirstWeekDay), day_offset(FirstWeekDay, Offset), day_print_map(DaysInMonth, Offset, Result).
day_print_map(DaysInMonth, 0, [1|R]) :- day_print_map2(DaysInMonth, 2, R). day_print_map(DaysInMonth, Offset, [' '|R]) :- dif(Offset, 0), succ(NewOffset, Offset), day_print_map(DaysInMonth, NewOffset, R).
day_print_map2(D, D, [D|R]) :- day_print_map(R). day_print_map2(D, N, [N|R]) :- dif(D,N), succ(N, N1), day_print_map2(D, N1, R).
day_print_map([]). day_print_map([' '|R]) :- day_print_map(R).
% Figure out the number of days in a month based on whether it is a leap year or not. month_days(2, Year, Days) :- is_leap_year(Year) -> Days = 29 ; Days = 28. month_days(Month, _, Days) :- dif(Month, 2), nth1(Month, [31, _, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31], Days).
% Figure out the space offset based on the day the month starts on. day_offset(D, D) :- dif(D, 7). day_offset(7, 0).
% Test for leap years is_leap_year(Year) :- 0 is Year mod 100 -> 0 is Year mod 400 ; 0 is Year mod 4.</lang>
Python
The Python calendar.prcal function prints calendars with the following formatting options: optional parameters w, l, and c are for date column width, lines per week, and number of spaces between month columns, respectively.
<lang python>>>> import calendar >>> help(calendar.prcal) Help on method pryear in module calendar:
pryear(self, theyear, w=0, l=0, c=6, m=3) method of calendar.TextCalendar instance
Print a years calendar.
>>> calendar.prcal(1969)
1969
January February March
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16 20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23 27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 4 1 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7 7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21 21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28 28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 3 4 5 6 7 6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21 20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28 27 28 29 30 31 24 25 26 27 28 29 30 29 30 31</lang>
Racket
<lang racket>#lang racket (require racket/date net/base64 file/gunzip) (define (calendar yr)
(define (nsplit n l) (if (null? l) l (cons (take l n) (nsplit n (drop l n)))))
(define months
(for/list ([mn (in-naturals 1)]
[mname '(January February March April May June July
August September October November December)])
(define s (find-seconds 0 0 12 1 mn yr))
(define pfx (date-week-day (seconds->date s)))
(define days
(let ([? (if (= mn 12) (λ(x y) y) (λ(x y) x))])
(round (/ (- (find-seconds 0 0 12 1 (? (+ 1 mn) 1) (? yr (+ 1 yr))) s)
60 60 24))))
(list* (~a mname #:width 20 #:align 'center) "Su Mo Tu We Th Fr Sa"
(map string-join
(nsplit 7 `(,@(make-list pfx " ")
,@(for/list ([d days])
(~a (+ d 1) #:width 2 #:align 'right))
,@(make-list (- 42 pfx days) " ")))))))
(let ([s #"nZA7CsAgDED3nCLgoAU/3Uvv4SCE3qKD5OyNWvoBhdIHSswjMYp4YR2z80Tk8StOgP
sY0EyrMZOE6WsL3u4G5lyV+d8MyVOy8hZBt7RSMca9Ac/KUIs1L/BOysb50XMtMzEj
ZqiuRxIVqI+4kSpy7GqpXNsz+bfpfWIGOAA="]
[o (open-output-string)])
(inflate (open-input-bytes (base64-decode s)) o)
(display (regexp-replace #rx"~a" (get-output-string o) (~a yr))))
(for-each displayln
(dropf-right (for*/list ([3ms (nsplit 3 months)] [s (apply map list 3ms)])
(regexp-replace #rx" +$" (string-join s " ") ""))
(λ(s) (equal? "" s)))))
(calendar 1969)</lang>
- Output:
,-~~-.___. ----
/ ()=(() \ 1969
( ( 0 ----
\._\, ,----'
##XXXxxxxxxx
/ ---'~;
/ /~|-
=( ~~ |
/~~~~~~~~~~~~~~~~~~~~~\
/_______________________\
/_________________________\
/___________________________\
|____________________|
|____________________|
|____________________|
| |
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Raku
(formerly Perl 6) <lang perl6>my $months-per-row = 3; my @weekday-names = <Mo Tu We Th Fr Sa Su>; my @month-names = <Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec>;
my Int() $year = @*ARGS.shift || 1969; say fmt-year($year);
sub fmt-year ($year) {
my @month-strs;
@month-strs[$_] = [fmt-month($year, $_).lines] for 1 .. 12;
my @C = ' ' x 30 ~ $year, ;
for 1, 1+$months-per-row ... 12 -> $month {
while @month-strs[$month] {
for ^$months-per-row -> $column {
@C[*-1] ~= @month-strs[$month+$column].shift ~ ' ' x 3 if @month-strs[$month+$column];
}
@C.push: ;
}
@C.push: ;
}
@C.join: "\n";
}
sub fmt-month ($year, $month) {
my $date = Date.new($year,$month,1);
@month-names[$month-1].fmt("%-20s\n") ~ @weekday-names ~ "\n" ~
((' ' xx $date.day-of-week - 1), (1..$date.days-in-month)».fmt('%2d')).flat.rotor(7, :partial).join("\n") ~
(' ' if $_ < 7) ~ (' ' xx 7-$_).join(' ') given Date.new($year, $month, $date.days-in-month).day-of-week;
}</lang>
Rebol
<lang rebol> do [if "" = y: ask "Year (ENTER for current):^/^/" [prin y: now/year] foreach m system/locale/months [
prin rejoin ["^/^/ " m "^/^/ "]
foreach day system/locale/days [prin join copy/part day 2 " "]
print "" f: to-date rejoin ["1-"m"-"y] loop f/weekday - 1 [prin " "]
repeat i 31 [
if attempt [c: to-date rejoin [i"-"m"-"y]][
prin join either 1 = length? form i [" "][" "] i
if c/weekday = 7 [print ""]
]
]
] ask "^/^/Press [ENTER] to Continue..."] </lang>
REXX
Rather than build a program from scratch, I took my generalized REXX program that generated (as an
option) any calendar for any month, and by extension, any number of months (so that an entire
year could be displayed/written). To make the program much smaller, a LOT of code was removed
(but it's still a sledgehammer doing the work of a small hammer).
Some of the code removed:
- almost all error checking and the issuing of error messages.
- the option of using "simple" characters as opposed to a true grid (of ASCII extended characters).
- the option of highlighting of today's date.
- the option of using colors.
- the specifying of what lang:uage to use (over 90 languages, default is English).
- the option of using indentation.
- the option of using different date formats (to specify the date).
- the option of using a time addition/subtraction for the date (* -4score-7years).
- the option of showing the phases of the moon.
- the option of showing the day-of-the-year (as on financial calendars and others).
- the option of specifying a calendar fill character (those empty cells in a monthly calender).
- the option of drawing Snoopy (three versions) and also many other animals/ASCII art.
- the specifing of alternate outputs (a file/printer/XEDIT/stack/GLOBALVs/etc).
- the option of displaying the year in blocked form (at the top of the calendar):
11 9999999 6666666 9999999
111 999999999 666666666 999999999
1111 99 99 66 66 99 99
11 99 99 66 99 99
11 99 999 66 99 999
11 999999999 66 666666 999999999
11 99999 99 6666666666 99999 99
11 99 666 66 99
11 99 66 66 99
11 99 99 66 66 99 99
111111 99999999 66666666 99999999
111111 999999 666666 999999
Most of the code is dealing with drawing a cell (grid) for each day-of-the-month, so the program
is a bit more complex than it has to be for this task. Also, it was designed for any year, any
month(s), and any size screen/device to show (display) it. Accommodations were made in the program
to allow the choice of what type of cells would be generated: small/smaller/smallest for height, and
narrow/narrower/narrowest for the width. The size (width/depth) of the output device/terminal can be
specified. The choice could've been performed programmatically, but I never believe that a program
could best choose over what the user wants, as it depends on esthetics and looks (fashion).
<lang rexx>/*REXX program to show any year's (monthly) calendar (with/without grid)*/
@abc='abcdefghijklmnopqrstuvwxyz'; @abcU=@abc; upper @abcU calfill=' '; mc=12; _='1 3 1234567890' "fb"x parse var _ grid calspaces # chk . cv_ days.1 days.2 days.3 daysn sd sw _=0; parse var _ cols 1 jd 1 lowerCase 1 maxKalPuts 1 narrow 1,
narrower 1 narrowest 1 short 1 shorter 1 shortest 1,
small 1 smaller 1 smallest 1 upperCase
parse arg mm '/' dd "/" yyyy _ '(' ops; uops=ops if _\== | \is#(mm) | \is#(dd) | \is#(yyyy) then call erx 86
do while ops\==; ops=strip(ops,'L'); parse var ops _1 2 1 _ . 1 _o ops
upper _
select
when abb('CALSPaces') then calspaces=nai()
when abb('DEPth') then sd=nai()
when abbn('GRIDs') then grid=no()
when abbn('LOWercase') then lowerCase=no()
when abb('CALMONths') then mc=nai()
when abbn('NARrow') then narrow=no()
when abbn('NARROWER') then narrower=no()
when abbn('NARROWESt') then narrowest=no()
when abbn('SHORt') then short=no()
when abbn('SHORTER') then shorter=no()
when abbn('SHORTESt') then shortest=no()
when abbn('SMALl') then small=no()
when abbn('SMALLER') then smaller=no()
when abbn('SMALLESt') then smallest=no()
when abbn('UPPercase') then upperCase=no()
when abb('WIDth') then sw=nai()
otherwise nop
end /*select*/
end /*do while opts\== ...*/
mc=int(mc,'monthscalender'); if mc>0 then cal=1 days='Sunday Monday Tuesday Wednesday Thursday Friday Saturday' months='January February March April May June July August September October November December' days=' 'days; months=' 'months cyyyy=right(date(),4); hyy=left(cyyyy,2); lyy=right(cyyyy,2) dy.=31; _=30; parse var _ dy.4 1 dy.6 1 dy.9 1 dy.11; dy.2=28+ly(yyyy) yy=right(yyyy,2); sd=p(sd 43); sw=p(sw 80); cw=10; cindent=1; calwidth=76 if small then do; narrow=1 ; short=1 ; end if smaller then do; narrower=1 ; shorter=1 ; end if smallest then do; narrowest=1; shortest=1; end if shortest then shorter=1 if shorter then short =1 if narrow then do; cw=9; cindent=3; calwidth=69; end if narrower then do; cw=4; cindent=1; calwidth=34; end if narrowest then do; cw=2; cindent=1; calwidth=20; end cv_=calwidth+calspaces+2 calfill=left(copies(calfill,cw),cw)
do j=1 for 7; _=word(days,j)
do jw=1 for 3; _d=strip(substr(_,cw*jw-cw+1,cw))
if jw=1 then _d=centre(_d,cw+1)
else _d=left(_d,cw+1)
days.jw=days.jw||_d
end /*jw*/
__=daysn
if narrower then daysn=__||centre(left(_,3),5)
if narrowest then daysn=__||center(left(_,2),3)
end /*j*/
_yyyy=yyyy; calPuts=0; cv=1; _mm=mm+0; month=word(months,mm) dy.2=28+ly(_yyyy); dim=dy._mm; _dd=01; dow=dow(_mm,_dd,_yyyy); $dd=dd+0
/*─────────────────────────────now: the business of the building the cal*/ call calGen
do _j=2 to mc
if cv_\== then do
cv=cv+cv_
if cv+cv_>=sw then do; cv=1; call calPut
call fcalPuts;call calPb
end
else calPuts=0
end
else do;call calPb;call calPut;call fcalPuts;end
_mm=_mm+1; if _mm==13 then do; _mm=1; _yyyy=_yyyy+1; end
month=word(months,_mm); dy.2=28+ly(_yyyy); dim=dy._mm
dow=dow(_mm,_dd,_yyyy); $dd=0; call calGen
end /*_j*/
call fcalPuts return _
/*─────────────────────────────calGen subroutine────────────────────────*/ calGen: cellX=;cellJ=;cellM=;calCells=0;calline=0 call calPut call calPutl copies('─',calwidth),"┌┐"; call calHd call calPutl month ' ' _yyyy ; call calHd if narrowest | narrower then call calPutl daysn
else do jw=1 for 3
if space(days.jw)\== then call calPutl days.jw
end
calft=1; calfb=0
do jf=1 for dow-1; call cellDraw calFill,calFill; end do jy=1 for dim; call cellDraw jy; end
calfb=1
do 7; call cellDraw calFill,calFill; end
if sd>32 & \shorter then call calPut return
/*─────────────────────────────cellDraw subroutine──────────────────────*/ cellDraw: parse arg zz,cdDOY;zz=right(zz,2);calCells=calCells+1 if calCells>7 then do
calLine=calLine+1
cellX=substr(cellX,2)
cellJ=substr(cellJ,2)
cellM=substr(cellM,2)
cellB=translate(cellX,,")(─-"#)
if calLine==1 then call cx
call calCsm; call calPutl cellX; call calCsj; call cx
cellX=; cellJ=; cellM=; calCells=1
end
cdDOY=right(cdDOY,cw); cellM=cellM'│'center(,cw) cellX=cellX'│'centre(zz,cw); cellJ=cellJ'│'center(,cw) return
/*═════════════════════════════general 1-line subs══════════════════════*/ abb:arg abbu;parse arg abb;return abbrev(abbu,_,abbl(abb)) abbl:return verify(arg(1)'a',@abc,'M')-1 abbn:parse arg abbn;return abb(abbn)|abb('NO'abbn) calCsj:if sd>49&\shorter then call calPutl cellB;if sd>24&\short then call calPutl cellJ; return calCsm:if sd>24&\short then call calPutl cellM;if sd>49&\shorter then call calPutl cellB;return calHd:if sd>24&\shorter then call calPutl;if sd>32&\shortest then call calPutl;return calPb:if \grid&shortest then call put chk;return calPut:calPuts=calPuts+1;maxKalPuts=max(maxKalPuts,calPuts);if symbol('CT.'calPuts)\=='VAR' then ct.calPuts=;ct.calPuts=overlay(arg(1),ct.calPuts,cv);return calPutl:call calPut copies(' ',cindent)left(arg(2)"│",1)center(arg(1),calwidth)||right('│'arg(2),1);return cx:cx_='├┤';cx=copies(copies('─',cw)'┼',7);if calft then do;cx=translate(cx,'┬',"┼");calft=0;end;if calfb then do;cx=translate(cx,'┴',"┼");cx_='└┘';calfb=0;end;call calPutl cx,cx_;return dow:procedure;arg m,d,y;if m<3 then do;m=m+12;y=y-1;end;yl=left(y,2);yr=right(y,2);w=(d+(m+1)*26%10+yr+yr%4+yl%4+5*yl)//7;if w==0 then w=7;return w er:parse arg _1,_2;call '$ERR' "14"p(_1) p(word(_1,2) !fid(1)) _2;if _1<0 then return _1;exit result err:call er '-'arg(1),arg(2);return erx:call er '-'arg(1),arg(2);exit fcalPuts: do j=1 for maxKalPuts;call put ct.j;end;ct.=;maxKalPuts=0;calPuts=0;return int:int=numx(arg(1),arg(2));if \isint(int) then call erx 92,arg(1) arg(2);return int/1 is#:return verify(arg(1),#)==0 isint:return datatype(arg(1),'W') lower:return translate(arg(1),@abc,@abcU) ly:arg _;if length(_)==2 then _=hyy||_;ly=_//4==0;if ly==0 then return 0;ly=((_//100\==0)|_//400==0);return ly na:if arg(1)\== then call erx 01,arg(2);parse var ops na ops;if na== then call erx 35,_o;return na nai:return int(na(),_o) nan:return numx(na(),_o) no:if arg(1)\== then call erx 01,arg(2);return left(_,2)\=='NO' num:procedure;parse arg x .,f,q;if x== then return x;if datatype(x,'N') then return x/1;x=space(translate(x,,','),0);if datatype(x,'N') then return x/1;return numnot() numnot:if q==1 then return x;if q== then call er 53,x f;call erx 53,x f numx:return num(arg(1),arg(2),1) p:return word(arg(1),1) put:_=arg(1);_=translate(_,,'_'chk);if \grid then _=ungrid(_);if lowerCase then _=lower(_);if upperCase then upper _;if shortest&_=' ' then return;call tell _;return tell:say arg(1);return ungrid:return translate(arg(1),,"│║─═┤┐└┴┬├┼┘┌╔╗╚╝╟╢╞╡╫╪╤╧╥╨╠╣")</lang> output when using the input of: 1/1/1969 (noGrid smallest narrowest)
«Snoopy "picture" here»
January 1969 February 1969 March 1969
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April 1969 May 1969 June 1969
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July 1969 August 1969 September 1969
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October 1969 November 1969 December 1969
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Output when using the input of: 1/1/1969 (smallest narrowest width 156 calSpaces 5)
A width of 156 was used to illustrate showing a grid, otherwise it would fit in 132 columns.
(Shown at three-quarter size.)
┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐
│ January 1969 │ │ February 1969 │ │ March 1969 │ │ April 1969 │ │ May 1969 │ │ June 1969 │
│Su Mo Tu We Th Fr Sa│ │Su Mo Tu We Th Fr Sa│ │Su Mo Tu We Th Fr Sa│ │Su Mo Tu We Th Fr Sa│ │Su Mo Tu We Th Fr Sa│ │Su Mo Tu We Th Fr Sa│
├──┬──┬──┬──┬──┬──┬──┤ ├──┬──┬──┬──┬──┬──┬──┤ ├──┬──┬──┬──┬──┬──┬──┤ ├──┬──┬──┬──┬──┬──┬──┤ ├──┬──┬──┬──┬──┬──┬──┤ ├──┬──┬──┬──┬──┬──┬──┤
│ │ │ │ 1│ 2│ 3│ 4│ │ │ │ │ │ │ │ 1│ │ │ │ │ │ │ │ 1│ │ │ │ 1│ 2│ 3│ 4│ 5│ │ │ │ │ │ 1│ 2│ 3│ │ 1│ 2│ 3│ 4│ 5│ 6│ 7│
├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤
│ 5│ 6│ 7│ 8│ 9│10│11│ │ 2│ 3│ 4│ 5│ 6│ 7│ 8│ │ 2│ 3│ 4│ 5│ 6│ 7│ 8│ │ 6│ 7│ 8│ 9│10│11│12│ │ 4│ 5│ 6│ 7│ 8│ 9│10│ │ 8│ 9│10│11│12│13│14│
├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤
│12│13│14│15│16│17│18│ │ 9│10│11│12│13│14│15│ │ 9│10│11│12│13│14│15│ │13│14│15│16│17│18│19│ │11│12│13│14│15│16│17│ │15│16│17│18│19│20│21│
├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤
│19│20│21│22│23│24│25│ │16│17│18│19│20│21│22│ │16│17│18│19│20│21│22│ │20│21│22│23│24│25│26│ │18│19│20│21│22│23│24│ │22│23│24│25│26│27│28│
├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤
│26│27│28│29│30│31│ │ │23│24│25│26│27│28│ │ │23│24│25│26│27│28│29│ │27│28│29│30│ │ │ │ │25│26│27│28│29│30│31│ │29│30│ │ │ │ │ │
└──┴──┴──┴──┴──┴──┴──┘ └──┴──┴──┴──┴──┴──┴──┘ ├──┼──┼──┼──┼──┼──┼──┤ └──┴──┴──┴──┴──┴──┴──┘ └──┴──┴──┴──┴──┴──┴──┘ └──┴──┴──┴──┴──┴──┴──┘
│30│31│ │ │ │ │ │
└──┴──┴──┴──┴──┴──┴──┘
┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐
│ July 1969 │ │ August 1969 │ │ September 1969 │ │ October 1969 │ │ November 1969 │ │ December 1969 │
│Su Mo Tu We Th Fr Sa│ │Su Mo Tu We Th Fr Sa│ │Su Mo Tu We Th Fr Sa│ │Su Mo Tu We Th Fr Sa│ │Su Mo Tu We Th Fr Sa│ │Su Mo Tu We Th Fr Sa│
├──┬──┬──┬──┬──┬──┬──┤ ├──┬──┬──┬──┬──┬──┬──┤ ├──┬──┬──┬──┬──┬──┬──┤ ├──┬──┬──┬──┬──┬──┬──┤ ├──┬──┬──┬──┬──┬──┬──┤ ├──┬──┬──┬──┬──┬──┬──┤
│ │ │ 1│ 2│ 3│ 4│ 5│ │ │ │ │ │ │ 1│ 2│ │ │ 1│ 2│ 3│ 4│ 5│ 6│ │ │ │ │ 1│ 2│ 3│ 4│ │ │ │ │ │ │ │ 1│ │ │ 1│ 2│ 3│ 4│ 5│ 6│
├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤
│ 6│ 7│ 8│ 9│10│11│12│ │ 3│ 4│ 5│ 6│ 7│ 8│ 9│ │ 7│ 8│ 9│10│11│12│13│ │ 5│ 6│ 7│ 8│ 9│10│11│ │ 2│ 3│ 4│ 5│ 6│ 7│ 8│ │ 7│ 8│ 9│10│11│12│13│
├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤
│13│14│15│16│17│18│19│ │10│11│12│13│14│15│16│ │14│15│16│17│18│19│20│ │12│13│14│15│16│17│18│ │ 9│10│11│12│13│14│15│ │14│15│16│17│18│19│20│
├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤
│20│21│22│23│24│25│26│ │17│18│19│20│21│22│23│ │21│22│23│24│25│26│27│ │19│20│21│22│23│24│25│ │16│17│18│19│20│21│22│ │21│22│23│24│25│26│27│
├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤ ├──┼──┼──┼──┼──┼──┼──┤
│27│28│29│30│31│ │ │ │24│25│26│27│28│29│30│ │28│29│30│ │ │ │ │ │26│27│28│29│30│31│ │ │23│24│25│26│27│28│29│ │28│29│30│31│ │ │ │
└──┴──┴──┴──┴──┴──┴──┘ ├──┼──┼──┼──┼──┼──┼──┤ └──┴──┴──┴──┴──┴──┴──┘ └──┴──┴──┴──┴──┴──┴──┘ ├──┼──┼──┼──┼──┼──┼──┤ └──┴──┴──┴──┴──┴──┴──┘
│31│ │ │ │ │ │ │ │30│ │ │ │ │ │ │
└──┴──┴──┴──┴──┴──┴──┘ └──┴──┴──┴──┴──┴──┴──┘
,-~~-.___.
/ ()=(() \
( ( 0
\._\, ,----'
##XXXxxxxxxx
/ ---'~;
/ /~|-
_____=( ~~ |______
/_____________________\
/_______________________\
/_________________________\
/___________________________\
|____________________|
|____________________|
|____________________|
| |
Ring
<lang ring>
- Project : Calendar
load "guilib.ring" load "stdlib.ring"
new qapp
{
win1 = new qwidget() {
day = list(12)
pos = newlist(12,37)
month = list(12)
week = list(7)
weekday = list(7)
button = newlist(7,6)
monthsnames = list(12)
week = ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"]
months = ["January", "February", "March", "April", "May", "June", "July",
"August", "September", "October", "November", "December"]
daysnew = [[5,1], [6,2], [7,3], [1,4], [2,5], [3,6], [4,7]]
mo = [4,0,0,3,5,1,3,6,2,4,0,2]
mon = [31,28,31,30,31,30,31,31,30,31,30,31]
m2 = (((1969-1900)%7) + floor((1969 - 1900)/4) % 7) % 7
for n = 1 to 12
month[n] = (mo[n] + m2) % 7
x = (month[n] + 1) % 7 + 1
for m = 1 to len(daysnew)
if daysnew[m][1] = x
nr = m
ok
next
day[n] = daysnew[nr][2]
next
for m = 1 to 12
for n = 1 to day[m] - 1
pos[m][n] = " "
next
next
for m = 1 to 12
for n = day[m] to 37
if n < (mon[m] + day[m])
pos[m][n] = n - day[m] + 1
else
pos[m][n] = " "
ok
next
next
setwindowtitle("Calendar")
setgeometry(100,100,650,800)
label1 = new qlabel(win1) {
setgeometry(10,10,800,600)
settext("")
}
year = new qpushbutton(win1)
{
setgeometry(280,20,60,20)
year.settext("1969")
}
for n = 1 to 4
nr = (n-1)*3+1
showmonths(nr)
next
for n = 1 to 12
showweeks(n)
next
for n = 1 to 12
showdays(n)
next
show()
}
exec()
}
func showmonths(m)
for n = m to m + 2
monthsnames[n] = new qpushbutton(win1)
{
if n%3 = 1
col = 120
rownr = floor(n/3)
if rownr = 0
rownr = n/3
ok
if n = 1
row = 40
else
row = 40+rownr*180
ok
else
colnr = n%3
if colnr = 0
colnr = 3
ok
rownr = floor(n/3)
if n%3 = 0
rownr = floor(n/3)-1
ok
col = 120 + (colnr-1)*160
row = 40 + rownr*180
ok
setgeometry(col,row,60,20)
monthsnames[n].settext(months[n])
}
next
func showweeks(n)
for m = 1 to 7
col = m%7
if col = 0 col = 7 ok
weekday[m] = new qpushbutton(win1)
{
colnr = n % 3
if colnr = 0
colnr = 3
ok
rownr = floor(n/3)
if n%3 = 0
rownr = floor(n/3)-1
ok
colbegin = 60 + (colnr-1)*160
rowbegin = 60 + (rownr)*180
setgeometry(colbegin+col*20,rowbegin,20,20)
weekday[m].settext(week[m])
}
next
func showdays(ind)
rownr = floor(ind/3)
if ind%3 = 0
rownr = floor(ind/3)-1
ok
rowbegin = 60+rownr*180
for m = 1 to 6
for n = 1 to 7
col = n%7
if col = 0 col = 7 ok
row = m
button[n][m] = new qpushbutton(win1)
{
if ind%3 = 1
colbegin = 60
elseif ind%3 = 2
colbegin = 220
else
colbegin = 380
ok
setgeometry(colbegin+col*20,rowbegin+row*20,20,20)
nr = (m-1)*7+n
if nr <= 37
if pos[ind][nr] != " "
button[n][m].settext(string(pos[ind][nr]))
ok
ok
}
next
next
</lang> Output image:
Ruby
Date class, from the standard library, knows how many days in a month, and which day is Sunday, for both Julian and Gregorian calendars. This program uses Date class, plus its own assumptions, to create the calendar. This program assumes that every year has 12 months and starts with January 1, and every month fits in 6 weeks starting with Sunday.
<lang ruby>require 'date'
- Creates a calendar of _year_. Returns this calendar as a multi-line
- string fit to _columns_.
def cal(year, columns)
# Start at January 1. # # Date::ENGLAND marks the switch from Julian calendar to Gregorian # calendar at 1752 September 14. This removes September 3 to 13 from # year 1752. (By fortune, it keeps January 1.) # date = Date.new(year, 1, 1, Date::ENGLAND)
# Collect calendars of all 12 months. months = (1..12).collect do |month| rows = [Date::MONTHNAMES[month].center(20), "Su Mo Tu We Th Fr Sa"]
# Make array of 42 days, starting with Sunday.
days = []
date.wday.times { days.push " " }
while date.month == month
days.push("%2d" % date.mday)
date += 1
end
(42 - days.length).times { days.push " " }
days.each_slice(7) { |week| rows.push(week.join " ") }
next rows
end
# Calculate months per row (mpr). # 1. Divide columns by 22 columns per month, rounded down. (Pretend # to have 2 extra columns; last month uses only 20 columns.) # 2. Decrease mpr if 12 months would fit in the same months per # column (mpc). For example, if we can fit 5 mpr and 3 mpc, then # we use 4 mpr and 3 mpc. mpr = (columns + 2).div 22 mpr = 12.div((12 + mpr - 1).div mpr)
# Use 20 columns per month + 2 spaces between months. width = mpr * 22 - 2
# Join months into calendar.
rows = ["[Snoopy]".center(width), "#{year}".center(width)]
months.each_slice(mpr) do |slice|
slice[0].each_index do |i|
rows.push(slice.map {|a| a[i]}.join " ")
end
end
return rows.join("\n")
end
ARGV.length == 1 or abort "usage: #{$0} year"
- Guess width of terminal.
- 1. Obey environment variable COLUMNS.
- 2. Try to require 'io/console' from Ruby 1.9.3.
- 3. Try to run `tput co`.
- 4. Assume 80 columns.
columns = begin Integer(ENV["COLUMNS"] || "")
rescue
begin require 'io/console'; IO.console.winsize[1]
rescue LoadError
begin Integer(`tput cols`)
rescue
80; end; end; end
puts cal(Integer(ARGV[0]), columns)</lang>
Here is 1969 in 132 columns.
$ ruby cal.rb 1969
[Snoopy]
1969
January February March April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8 6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15 13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22 20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30 25 26 27 28 29 30 31 29 30
30 31
July August September October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6 1 2 3 4 1 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
31 30
The output in 80 columns for the Gregorian reform year (note missing days in september):
[Snoopy]
1752
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6 7
5 6 7 8 9 10 11 2 3 4 5 6 7 8 8 9 10 11 12 13 14
12 13 14 15 16 17 18 9 10 11 12 13 14 15 15 16 17 18 19 20 21
19 20 21 22 23 24 25 16 17 18 19 20 21 22 22 23 24 25 26 27 28
26 27 28 29 30 31 23 24 25 26 27 28 29 29 30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 2 1 2 3 4 5 6
5 6 7 8 9 10 11 3 4 5 6 7 8 9 7 8 9 10 11 12 13
12 13 14 15 16 17 18 10 11 12 13 14 15 16 14 15 16 17 18 19 20
19 20 21 22 23 24 25 17 18 19 20 21 22 23 21 22 23 24 25 26 27
26 27 28 29 30 24 25 26 27 28 29 30 28 29 30
31
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 14 15 16
5 6 7 8 9 10 11 2 3 4 5 6 7 8 17 18 19 20 21 22 23
12 13 14 15 16 17 18 9 10 11 12 13 14 15 24 25 26 27 28 29 30
19 20 21 22 23 24 25 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 29
30 31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 7 1 2 3 4 1 2
8 9 10 11 12 13 14 5 6 7 8 9 10 11 3 4 5 6 7 8 9
15 16 17 18 19 20 21 12 13 14 15 16 17 18 10 11 12 13 14 15 16
22 23 24 25 26 27 28 19 20 21 22 23 24 25 17 18 19 20 21 22 23
29 30 31 26 27 28 29 30 24 25 26 27 28 29 30
31
Rust
<lang rust>// Assume your binary name is 'calendar'. // Command line: // >>$ calendar 2019 150 // First argument: year number. // Second argument (optional): text area width (in characters).
extern crate chrono;
use std::{env, cmp}; use chrono::{NaiveDate, Datelike};
const MONTH_WIDTH: usize = 22;
fn print_header(months: &[&str]) {
const DAYS_OF_WEEK: &str = "SU MO TU WE TH FR SA ";
println!();
for m in months {
print!("{:^20} ", m);
}
println!("\n{}", DAYS_OF_WEEK.repeat(months.len()));
}
fn get_week_str(days: i32, week_num: i32, start_day_of_week: i32) -> Option<String> {
let start = week_num * 7 - start_day_of_week + 1;
let end = (week_num + 1) * 7 - start_day_of_week;
let mut ret = String::with_capacity(MONTH_WIDTH);
if start > days {
None
} else {
for i in start..(end + 1) {
if i <= 0 || i > days {
ret.push_str(" ");
} else {
if i < 10 {
ret.push_str(" ");
}
ret.push_str(&i.to_string());
}
ret.push_str(" ");
}
ret.push_str(" ");
Some(ret)
}
}
fn main() {
const MONTH_NAMES: [&str; 12] = ["JANUARY", "FEBRUARY", "MARCH", "APRIL", "MAY", "JUNE", "JULY",
"AUGUST", "SEPTEMBER", "OCTOBER", "NOVEMBER", "DECEMBER"];
const DEFAULT_TEXT_WIDTH: usize = 100;
let args: Vec<String> = env::args().collect();
let year: i32 = args[1].parse().expect("The first argument must be a year");
let width: usize = if args.len() > 2 {
cmp::max(MONTH_WIDTH, args[2].parse().expect("The second argument should be text width"))
} else {
DEFAULT_TEXT_WIDTH
};
let months_in_row = width / MONTH_WIDTH;
let month_rows = if MONTH_NAMES.len() % months_in_row == 0 {
MONTH_NAMES.len() / months_in_row
} else {
MONTH_NAMES.len() / months_in_row + 1
};
let start_days_of_week: Vec<i32> =
(1..13).map(|x| NaiveDate::from_ymd(year, x, 1).weekday().num_days_from_sunday() as i32).collect();
let month_days: [i32; 12] = if NaiveDate::from_ymd_opt(year, 2, 29).is_some() {
[31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
} else {
[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
};
println!("{year:^w$}", w=width, year=year.to_string());
for i in 0..month_rows {
let start = i * months_in_row;
let end = cmp::min((i + 1) * months_in_row, MONTH_NAMES.len());
print_header(&MONTH_NAMES[start..end]);
let mut count = 0;
let mut row_num = 0;
while count < months_in_row {
let mut row_str = String::with_capacity(width);
for j in start..end {
match get_week_str(month_days[j], row_num, start_days_of_week[j]) {
None => {
count += 1;
row_str.push_str(&" ".repeat(MONTH_WIDTH));
},
Some(week_str) => row_str.push_str(&week_str)
}
}
if count < months_in_row {
println!("{}", row_str);
}
row_num += 1;
}
}
} </lang>
Scala
Scala Version 1
<lang Scala>import java.util.{ Calendar, GregorianCalendar } import language.postfixOps import collection.mutable.ListBuffer
object CalendarPrint extends App {
val locd = java.util.Locale.getDefault() val cal = new GregorianCalendar val monthsMax = cal.getMaximum(Calendar.MONTH)
def JDKweekDaysToISO(dn: Int) = {
val nday = dn - Calendar.MONDAY
if (nday < 0) (dn + Calendar.THURSDAY) else nday
}
def daysInMonth(year: Int, monthMinusOne: Int): Int = {
cal.set(year, monthMinusOne, 1)
cal.getActualMaximum(Calendar.DAY_OF_MONTH)
}
def namesOfMonths() = {
def f1(i: Int): String = {
cal.set(2013, i, 1)
cal.getDisplayName(Calendar.MONTH, Calendar.LONG, locd)
}
(0 to monthsMax) map f1
}
def offsets(year: Int): List[Int] = {
val months = cal.getMaximum(Calendar.MONTH)
def get1stDayOfWeek(i: Int) = {
cal.set(year, i, 1)
cal.get(Calendar.DAY_OF_WEEK)
}
(0 to monthsMax).toList map get1stDayOfWeek map { i => JDKweekDaysToISO(i) }
}
def headerNameOfDays() = {
val mdow = cal.getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.SHORT, locd) // map days of week
val it = mdow.keySet.iterator
val keySet = new ListBuffer[String]
while (it.hasNext) keySet += it.next
(keySet.map { key => (JDKweekDaysToISO(mdow.get(key)), key.take(2))
}.sortWith(_._1 < _._1) map (_._2)).mkString(" ")
}
def getGregCal(year: Int) = {
{
def dayOfMonth(month: Int) = new Iterator[(Int, Int)] {
cal.set(year, month, 1)
var ldom = 0
def next() = {
val res = (cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH))
ldom = res._2
cal.roll(Calendar.DAY_OF_MONTH, true)
res
}
def hasNext() = (cal.get(Calendar.DAY_OF_MONTH) > ldom)
}
var ret: List[(Int, Int)] = Nil
for (i <- 0 to monthsMax) ret = ret ++ (dayOfMonth(i).toSeq)
(ret, offsets(year))
}
}
def printCalendar(calendar: (List[(Int, Int)], List[Int]),
headerList: List[String] = Nil,
printerWidth: Int = 80) = {
val mw = 20 // month width
val gwf = 2 // gap width fixed
val gwm = 2 // gap width minimum
val fgw = true
val arr = Array.ofDim[String](6, 7)
def limits(printerWidth: Int): (Int, Int, Int, Int, Int) = {
val pw = if (printerWidth < 20) 20 else if (printerWidth > 300) 300 else printerWidth
// months side by side, gaps sum minimum
val (msbs, gsm) = {
val x1 = {
val c = if (pw / mw > 12) 12 else pw / mw
val a = (c - 1)
if (c * mw + a * gwm <= pw) c else a
} match {
case 5 => 4
case a if (a > 6 && a < 12) => 6
case other => other
}
(x1, (x1 - 1) * gwm)
}
def getFGW(msbs: Int, gsm: Int) = { val r = (pw - msbs * mw - gsm) / 2; (r, gwf, r) } // fixed gap width
def getVGW(msbs: Int, gsm: Int) = pw - msbs * mw - gsm match { // variable gap width
case a if (a < 2 * gwm) => (a / 2, gwm, a / 2)
case b => { val x = (b + gsm) / (msbs + 1); (x, x, x) }
}
// left margin, gap width, right margin
val (lm, gw, rm) = if (fgw) getFGW(msbs, gsm) else getVGW(msbs, gsm)
(pw, msbs, lm, gw, rm)
} // def limits(
val (pw, msbs, lm, gw, rm) = limits(printerWidth)
val monthsList = (0 to monthsMax).map { m => calendar._1.filter { _._1 == m } }
val nom = namesOfMonths()
val hnod = headerNameOfDays
def fsplit(list: List[(Int, Int)]): List[String] = {
def fap(p: Int) = (p / 7, p % 7)
for (i <- 0 until 6) for (j <- 0 until 7) arr(i)(j) = " "
for (i <- 0 until list.size)
arr(fap(i + calendar._2(list(i)._1))._1)(fap(i + calendar._2(list(i)._1))._2) =
f"${(list(i)._2)}%2d"
arr.toList.map(_.foldRight("")(_ + " " + _))
}
val monthsRows = monthsList.map(fsplit)
def center(s: String, l: Int): String = {
(if (s.size >= l) s
else " " * ((l - s.size) / 2) + s + " " * ((l - s.size) / 2) + " ").substring(0, l)
}
val maxMonths = monthsMax + 1
val rowblocks = (1 to maxMonths / msbs).map { i =>
(0 to 5).map { j =>
val lb = new ListBuffer[String]
val k = (i - 1) * msbs
(k to k + msbs - 1).map { l => lb += monthsRows(l)(j) }
lb
}
}
val mheaders = (1 to maxMonths / msbs).
map { i => (0 to msbs - 1).map { j => center(nom(j + (i - 1) * msbs), 20) } }
val dowheaders = (1 to maxMonths / msbs).
map { i => (0 to msbs - 1).map { j => center(hnod, 20) } }
headerList.foreach(xs => println(center(xs + '\n', pw)))
(1 to 12 / msbs).foreach { i =>
println(" " * lm + mheaders(i - 1).foldRight("")(_ + " " * gw + _))
println(" " * lm + dowheaders(i - 1).foldRight("")(_ + " " * gw + _))
rowblocks(i - 1).foreach { xs => println(" " * lm + xs.foldRight("")(_ + " " * (gw - 1) + _)) }
println
}
} // def printCal(
printCalendar(getGregCal(1969), List("[Snoopy Picture]", "1969"))
printCalendar(getGregCal(1582), List("[Snoopy Picture]", "1582"), printerWidth = 132)
}</lang>
- Output:
[Snoopy Picture]
1969
January February March
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
[Snoopy Picture]
1582
January February March April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 7 1 2 3 4 1 2 3 4 1 1 2 3 4 5 6 1 2 3
8 9 10 11 12 13 14 5 6 7 8 9 10 11 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13 4 5 6 7 8 9 10
15 16 17 18 19 20 21 12 13 14 15 16 17 18 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20 11 12 13 14 15 16 17
22 23 24 25 26 27 28 19 20 21 22 23 24 25 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27 18 19 20 21 22 23 24
29 30 31 26 27 28 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31 25 26 27 28 29 30
30
July August September October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 1 2 3 4 5 1 2 1 2 3 4 15 16 17 1 2 3 4 5 6 7 1 2 3 4 5
2 3 4 5 6 7 8 6 7 8 9 10 11 12 3 4 5 6 7 8 9 18 19 20 21 22 23 24 8 9 10 11 12 13 14 6 7 8 9 10 11 12
9 10 11 12 13 14 15 13 14 15 16 17 18 19 10 11 12 13 14 15 16 25 26 27 28 29 30 31 15 16 17 18 19 20 21 13 14 15 16 17 18 19
16 17 18 19 20 21 22 20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28 20 21 22 23 24 25 26
23 24 25 26 27 28 29 27 28 29 30 31 24 25 26 27 28 29 30 29 30 27 28 29 30 31
30 31
Scala Version 2
<lang Scala>/**
* Loosely based on the Ruby implementation. * * Focuses on immutability and Scala idioms, * while trying to remain readable and clean. */
object YearCalendarApp extends App with Extras {
val defaultYear = 1752 val columns = 86
val year = args.headOption.map(_.toInt).getOrElse(defaultYear)
yearCalendarLines(year, columns).foreach(println)
def yearCalendarLines(year: Int, columns: Int): Seq[String] = {
// At least one. Divide rest columns by width + 2 spaces (separator)
val calendarsPerRow = 1 + (columns - 20) / (20 + 2)
// Use 20 columns per month + 2 spaces between months val width = calendarsPerRow * 22 - 2
List(
"[Snoopy]".center(width),
s"${year}".center(width)) ++
// Get, group, transpose and join calendar lines
allMonthCalendarLines(year).grouped(calendarsPerRow).flatMap { calGroup =>
calGroup.transpose.map(stringsInRow => stringsInRow.mkString(" "))
}
}
def allMonthCalendarLines(year: Int): Seq[Seq[String]] = {
(1 to 12).map { monthNr =>
val date = MonthCalendar(monthInYear = monthNr, year)
// Make array of 42 days (7 * 6 weeks max.) starting with Sunday (which is 0)
val daySlotsInMonth = {
(Seq().padTo(date.dayOfWeek, " ") ++
date.daysInMonth.map { dayNr => "%2d".format(dayNr) }).
padTo(42, " ")
}
List(
date.monthName.center(20),
"Su Mo Tu We Th Fr Sa") ++
daySlotsInMonth.grouped(7).map { weekSlots => weekSlots.mkString(" ") }
}
}
}</lang>
<lang Scala>/**
* This provides extra classes needed for the main * algorithm. */
trait Extras {
import java.util.Calendar import java.util.GregorianCalendar import java.text.SimpleDateFormat import java.util.Locale
import scala.collection.mutable.Buffer
implicit class MyString(str: String) {
def center(width: Int): String = {
val leftSpaces = (width / 2) - (str.length() / 2)
val rightSpaces = width - (leftSpaces + str.length)
(" " * leftSpaces) + str + (" " * rightSpaces)
}
}
case class MonthCalendar(monthInYear: Int, year: Int) {
private val javaCalendar = makeJavaCalendar(year, monthInYear)
private def makeJavaCalendar(year: Int, monthInYear: Int): Calendar = {
val calendar = new GregorianCalendar()
// Actually, other countries changed already in 1582,
// which is the JDK's default implementation.
val gregorianDateChangeInEngland = {
val d = Calendar.getInstance()
d.set(1752, Calendar.SEPTEMBER, 14)
d.getTime()
}
// For England we need to set this explicitly.
calendar.setGregorianChange(gregorianDateChangeInEngland)
calendar.set(Calendar.DAY_OF_MONTH, 1)
calendar.set(Calendar.YEAR, year)
calendar.set(Calendar.MONTH, monthInYear - 1)
calendar
}
val monthName = javaCalendar.getDisplayName(Calendar.MONTH, Calendar.LONG, Locale.ENGLISH)
val dayOfWeek = javaCalendar.get(Calendar.DAY_OF_WEEK) - 1
val daysInMonth = {
val tempCal = makeJavaCalendar(year, monthInYear)
val dayNumbers = Buffer[Int]()
while (tempCal.get(Calendar.MONTH) == monthInYear - 1) {
dayNumbers += tempCal.get(Calendar.DAY_OF_MONTH)
tempCal.add(Calendar.DATE, 1)
}
dayNumbers
}
}
}</lang>
Sample output for 1792:
[Snoopy]
1752
January February March April
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6 7 1 2 3 4
5 6 7 8 9 10 11 2 3 4 5 6 7 8 8 9 10 11 12 13 14 5 6 7 8 9 10 11
12 13 14 15 16 17 18 9 10 11 12 13 14 15 15 16 17 18 19 20 21 12 13 14 15 16 17 18
19 20 21 22 23 24 25 16 17 18 19 20 21 22 22 23 24 25 26 27 28 19 20 21 22 23 24 25
26 27 28 29 30 31 23 24 25 26 27 28 29 29 30 31 26 27 28 29 30
May June July August
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 1 2 3 4 5 6 1 2 3 4 1
3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
31 30 31
September October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 14 15 16 1 2 3 4 5 6 7 1 2 3 4 1 2
17 18 19 20 21 22 23 8 9 10 11 12 13 14 5 6 7 8 9 10 11 3 4 5 6 7 8 9
24 25 26 27 28 29 30 15 16 17 18 19 20 21 12 13 14 15 16 17 18 10 11 12 13 14 15 16
22 23 24 25 26 27 28 19 20 21 22 23 24 25 17 18 19 20 21 22 23
29 30 31 26 27 28 29 30 24 25 26 27 28 29 30
31
Seed7
<lang seed7>$ include "seed7_05.s7i";
include "time.s7i";
const func string: center (in string: stri, in integer: length) is
return ("" lpad (length - length(stri)) div 2 <& stri) rpad length;
const proc: printCalendar (in integer: year, in integer: cols) is func
local
var time: date is time.value;
var integer: dayOfWeek is 0;
const array string: monthNames is [] ("January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December");
var array array string: monthTable is 12 times 9 times "";
var string: str is "";
var integer: month is 0;
var integer: position is 0;
var integer: row is 0;
var integer: column is 0;
var integer: line is 0;
begin
for month range 1 to 12 do
monthTable[month][1] := " " & center(monthNames[month], 20);
monthTable[month][2] := " Mo Tu We Th Fr Sa Su";
date := date(year, month, 1);
dayOfWeek := dayOfWeek(date);
for position range 1 to 43 do
if position >= dayOfWeek and position - dayOfWeek < daysInMonth(date.year, date.month) then
str := succ(position - dayOfWeek) lpad 3;
else
str := "" lpad 3;
end if;
monthTable[month][3 + pred(position) div 7] &:= str;
end for;
end for;
writeln(center("[Snoopy Picture]", cols * 24 + 4));
writeln(center(str(year),cols * 24 + 4));
writeln;
for row range 1 to succ(11 div cols) do
for line range 1 to 9 do
for column range 1 to cols do
if pred(row) * cols + column <= 12 then
write(" " & monthTable[pred(row) * cols + column][line]);
end if;
end for;
writeln;
end for;
end for;
end func;
const proc: main is func
begin printCalendar(1969, 3); end func;</lang>
Original source: [1]
The output of this program is:
[Snoopy Picture]
1969
January February March
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
Sidef
<lang ruby>require('DateTime')
define months_per_col = 3 define week_day_names = <Mo Tu We Th Fr Sa Su> define month_names = <Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec>
func fmt_month (year, month) {
var str = sprintf("%-20s\n", month_names[month-1])
str += week_day_names.join(' ')+"\n"
var dt = %s<DateTime>
var date = dt.new(year => year, month => month)
var week_day = date.day_of_week
str += (week_day-1 `of` " " -> join(" "))
var last_day = dt.last_day_of_month(year => year, month => month).day
for day (date.day .. last_day) {
date = dt.new(year => year, month => month, day => day)
str += " " if (week_day ~~ (2..7))
if (week_day == 8) {
str += "\n"
week_day = 1
}
str += sprintf("%2d", day)
++week_day
}
str += " " if (week_day < 8)
str += (8-week_day `of` " " -> join(" "))
str += "\n"
}
func fmt_year (year) {
var month_strs = 12.of {|i| fmt_month(year, i+1).lines }
var str = (' '*30 + year + "\n")
for month (0..11 `by` months_per_col) {
while (month_strs[month]) {
for i (1..months_per_col) {
month_strs[month + i - 1] || next
str += month_strs[month + i - 1].shift
str += ' '*3
}
str += "\n"
}
str += "\n"
}
return str
}
print fmt_year(ARGV ? Number(ARGV[0]) : 1969)</lang>
- Output:
1969
Jan Feb Mar
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
Apr May Jun
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
Jul Aug Sep
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
Oct Nov Dec
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
Simula
The subtleties of the post-increment logic which is used in the c program took me some time to detect. For symmetry I also implemented the pre-increment. <lang simula>BEGIN
INTEGER WIDTH, YEAR; INTEGER COLS, LEAD, GAP; TEXT ARRAY WDAYS(0:6); CLASS MONTH(MNAME); TEXT MNAME; BEGIN INTEGER DAYS, START_WDAY, AT_POS; END MONTH; REF(MONTH) ARRAY MONTHS(0:11); WIDTH := 80; YEAR := 1969;
BEGIN
TEXT T;
INTEGER I, M;
FOR T :- "Su", "Mo", "Tu", "We", "Th", "Fr", "Sa" DO BEGIN
WDAYS(I) :- T; I := I+1;
END;
I := 0;
FOR T :- "January", "February", "March",
"April", "May", "June",
"July", "August", "September",
"October", "November", "December" DO BEGIN
MONTHS(I) :- NEW MONTH(T); I := I+1;
END;
I := 0;
FOR M := 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 DO BEGIN
MONTHS(I).DAYS := M; I := I+1;
END;
END;
BEGIN
PROCEDURE SPACE(N); INTEGER N;
BEGIN
WHILE N > 0 DO BEGIN
OUTCHAR(' '); N := N-1;
END;
END SPACE;
PROCEDURE INIT_MONTHS;
BEGIN
INTEGER I;
IF MOD(YEAR,4) = 0 AND MOD(YEAR,100) <> 0 OR MOD(YEAR,400) = 0 THEN
MONTHS(1).DAYS := 29;
YEAR := YEAR-1;
MONTHS(0).START_WDAY
:= MOD(YEAR * 365 + YEAR//4 - YEAR//100 + YEAR//400 + 1, 7);
FOR I := 1 STEP 1 UNTIL 12-1 DO
MONTHS(I).START_WDAY :=
MOD(MONTHS(I-1).START_WDAY + MONTHS(I-1).DAYS, 7);
COLS := (WIDTH + 2) // 22;
WHILE MOD(12,COLS) <> 0 DO
COLS := COLS-1;
GAP := IF COLS - 1 <> 0 THEN (WIDTH - 20 * COLS) // (COLS - 1) ELSE 0;
IF GAP > 4 THEN
GAP := 4;
LEAD := (WIDTH - (20 + GAP) * COLS + GAP + 1) // 2;
YEAR := YEAR+1;
END INIT_MONTHS;
PROCEDURE PRINT_ROW(ROW); INTEGER ROW;
BEGIN
INTEGER C, I, FROM, UP_TO;
INTEGER PROCEDURE PREINCREMENT(I); NAME I; INTEGER I;
BEGIN I := I+1; PREINCREMENT := I;
END PREINCREMENT;
INTEGER PROCEDURE POSTINCREMENT(I); NAME I; INTEGER I;
BEGIN POSTINCREMENT := I; I := I+1;
END POSTINCREMENT;
FROM := ROW * COLS;
UP_TO := FROM + COLS;
SPACE(LEAD);
FOR C := FROM STEP 1 UNTIL UP_TO-1 DO BEGIN
I := MONTHS(C).MNAME.LENGTH;
SPACE((20 - I)//2);
OUTTEXT(MONTHS(C).MNAME);
SPACE(20 - I - (20 - I)//2 + (IF C = UP_TO - 1 THEN 0 ELSE GAP));
END;
OUTIMAGE;
SPACE(LEAD);
FOR C := FROM STEP 1 UNTIL UP_TO-1 DO BEGIN
FOR I := 0 STEP 1 UNTIL 7-1 DO BEGIN
OUTTEXT(WDAYS(I)); OUTTEXT(IF I = 6 THEN "" ELSE " ");
END;
IF C < UP_TO - 1 THEN
SPACE(GAP)
ELSE
OUTIMAGE;
END;
WHILE TRUE DO BEGIN
FOR C := FROM STEP 1 UNTIL UP_TO-1 DO
IF MONTHS(C).AT_POS < MONTHS(C).DAYS THEN
GO TO IBREAK;
IBREAK:
IF C = UP_TO THEN
GO TO OBREAK;
SPACE(LEAD);
FOR C := FROM STEP 1 UNTIL UP_TO-1 DO BEGIN
FOR I := 0 STEP 1 UNTIL MONTHS(C).START_WDAY-1 DO
SPACE(3);
WHILE POSTINCREMENT(I) < 7 AND MONTHS(C).AT_POS < MONTHS(C).DAYS DO BEGIN
OUTINT(PREINCREMENT(MONTHS(C).AT_POS),2);
IF I < 7 OR C < UP_TO - 1 THEN
SPACE(1);
END;
WHILE POSTINCREMENT(I) <= 7 AND C < UP_TO-1 DO
SPACE(3);
IF C < UP_TO - 1 THEN
SPACE(GAP - 1);
MONTHS(C).START_WDAY := 0;
END;
OUTIMAGE;
END;
OBREAK:
OUTIMAGE;
END PRINT_ROW;
PROCEDURE PRINT_YEAR;
BEGIN
INTEGER ROW;
TEXT BUF;
INTEGER STRLEN;
BUF :- BLANKS(32); BUF.PUTINT(YEAR); BUF.SETPOS(1);
WHILE BUF.MORE AND THEN BUF.GETCHAR = ' ' DO
STRLEN := STRLEN+1;
BUF :- BUF.SUB(STRLEN+1, 32-STRLEN);
SPACE((WIDTH - BUF.LENGTH) // 2);
OUTTEXT(BUF); OUTIMAGE; OUTIMAGE;
WHILE ROW * COLS < 12 DO BEGIN
PRINT_ROW(ROW);
ROW := ROW+1;
END;
END PRINT_YEAR;
INIT_MONTHS;
PRINT_YEAR;
END;
END;</lang>
- Output:
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Smalltalk
This implementation has been developed using Cuis Smalltalk [2] with Aconcagua loaded. To run it, evaluate: <lang smalltalk>CalendarPrinter printOnTranscriptForYearNumber: 1969</lang> <lang Smalltalk> "Instance Variables: - yearToPrint: The year to print the calendar of - stream: The stream used to print the calendar - monthsOfYear: A collection of all the months of yearToPrint, for example January 1969, February 1969, and so on - currentMonths: Group of 3 months under print, for example from January to March or April to June, and so on - monthOfYearCurrentDate: A collection that associates a month with the date to print for that month. It is used to
know which day number should be printed for each month when iterating over the day of weeks of each row"
Object subclass: #CalendarPrinter instanceVariableNames: 'yearToPrint stream monthsOfYear currentMonths monthOfYearCurrentDate' classVariableNames: poolDictionaries: category: 'CalendarPrinter'
CalendarPrinter class>>printOnTranscriptForYearNumber: aYearNumber (self for: (GregorianYear number: aYearNumber) on: Transcript) value
CalendarPrinter class>>for: aYear on: aStream
^self new initializeFor: aYear on: aStream
initializeFor: aYear on: aStream yearToPrint := aYear. stream := aStream. monthsOfYear := yearToPrint months. monthOfYearCurrentDate := monthsOfYear collect: [ :aMonthOfYear | aMonthOfYear firstDate ].
value "Prints the year number (header) and then its months" self printHeader; printMonths.
printHeader "Prints the year number centered" self center: yearToPrint number printString in: self numberOfCharactersPerLine. stream newLine; newLine.
printMonths "Prints each group of 3 months, for example from January to March, then April to June and so on" (January to: December by: 3*month) do: [ :aMonth | self printMonthsStartingOn: aMonth ].
printMonthsStartingOn: aMonth "For each group of 3 months starting in aMonth, prints the name of the month (header), the name of the days of the week (Mo Tu ...), and then the day numbers" currentMonths := aMonth to: aMonth next next. self printMonthsHeader; printDaysOfWeekHeader; printDayNumbers.
printMonthsHeader "Prints the current group of 3 months names, centered" currentMonths do: [ :currentMonth | self center: currentMonth printString in: self numberOfCharactersPerMonth ] separatedBy: [ stream space: 3 ]. stream newLine.
printDaysOfWeekHeader "Prints the names of the days of week for each month of the current group of 3 months" currentMonths do: [ :currentMonth | self printOneMonthDaysOfWeekHeader ] separatedBy: [ stream space: 3 ]. stream newLine.
printOneMonthDaysOfWeekHeader "Prints the name of the days of week" (Sunday to: Saturday) do: [ :aDayOfWeek | stream nextPutAll: (aDayOfWeek printString first: 2) ] separatedBy: [ stream space ]
printDayNumbers "While there are day numbers to print, prints them in a row" [self hasDayNumbersToPrint] whileTrue: [ self printDayNumbersRow ].
hasDayNumbersToPrint "If any of the group of 3 months currently printing has day numbers to print returns true, otherwise false" ^currentMonths anySatisfy: [ :currentMonth | self isCurrentDateAtSameMonthOfYearAs: currentMonth ]
isCurrentDateAtSameMonthOfYearAs: currentMonth "Returns true if the date to print for currentMonth is actually for the currentMonth" ^(self currentDateOf: currentMonth) month = currentMonth
printDayNumbersRow "For each month of the group of 3, prints a row of day numbers" currentMonths do: [ :currentMonth | self printDayNumbersRowOf: currentMonth ] separatedBy: [ stream space: 3 ]. stream newLine
printDayNumbersRowOf: currentMonth "Prints the day numbers of the current week" (Sunday to: Saturday) do: [ :aDayOfWeek | self printDayNumberOf: currentMonth for: aDayOfWeek ] separatedBy: [ stream space ]
printDayNumberOf: currentMonth for: aDayOfWeek "If the current date of the current month corresponds to aDayOfWeeks, prints its day number, if not, leaves a space This is important to leave the spaces in the first row and last row for those day of week that do not have a day number related" | currentDate | currentDate := self currentDateOf: currentMonth. (self hasToPrint: currentDate of: currentMonth for: aDayOfWeek) ifTrue: [ currentDate dayNumber printOn: stream length: 2 zeroPadded: false. self calculateNextCurrentDateOf: currentMonth ] ifFalse: [ stream space: 2 ]! !
hasToPrint: aDate of: aCurrentMonth for: aDayOfWeek "Returns whether aDate is part of aCurrentMonth and its day of week is aDayOfWeek. It is used to decide whether to print the date day number or leave an space" ^(aDate month = aCurrentMonth) and: [aDate day = aDayOfWeek]
currentDateOf: currentMonth "Returns the date to print for currentMonth" ^monthOfYearCurrentDate at: currentMonth number
calculateNextCurrentDateOf: currentMonth "Changes the date to print of the currentMonth to the next date" monthOfYearCurrentDate at: currentMonth number put: (self currentDateOf: currentMonth) next
center: stringToCenter in: aNumberOfCharacters "Prints stringToCenter centered in a line of aNumberOfCharacters total" | centerStart | centerStart := aNumberOfCharacters - stringToCenter size // 2. stream space: centerStart; nextPutAll: stringToCenter; space: aNumberOfCharacters - centerStart - stringToCenter size
numberOfCharactersPerLine "Returns the number of characters per line" ^66
numberOfCharactersPerMonth "Returns the number of character per month" ^20 </lang>
- Output:
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
SPL
<lang spl>year = 1969
- .output(#.str(year,">68<"))
> row, 0..3
> col, 1..3
cal[col] = mcal(row*3+col,year)
size = #.size(cal[col],1)
<
> i, 1..8
str = ""
> col, 1..3
? col>1, str += " "
line = ""
? #.size(cal[col],1)!<i, line = cal[col][i]
str += #.str(line,"<20<")
<
#.output(str)
<
< mcal(m,y)=
months = ["January","February","March","April","May","June","July","August","September","October","November","December"] days = [31,28,31,30,31,30,31,31,30,31,30,31] ? y%4=0, days[2] = 29 lines = #.array(0) lines[1] = #.str(months[m],">20<") lines[2] = "Mo Tu We Th Fr Sa Su" n = 3 > i, 1..#.weekday(1,m,y)-1 lines[n] += " " < > d, 1..days[m] wd = #.weekday(d,m,y) lines[n] += #.str(d,">2>") ? wd<7, lines[n] += " " ? wd=7, n += 1 < <= lines
.</lang>
- Output:
1969
January February March
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
Swift
<lang swift>import Foundation
let monthWidth = 20 let monthGap = 2 let dayNames = "Su Mo Tu We Th Fr Sa" let dateFormatter = DateFormatter() dateFormatter.dateFormat = "MMMM"
func rpad(string: String, width: Int) -> String {
return string.count >= width ? string
: String(repeating: " ", count: width - string.count) + string
}
func lpad(string: String, width: Int) -> String {
return string.count >= width ? string
: string + String(repeating: " ", count: width - string.count)
}
func centre(string: String, width: Int) -> String {
if string.count >= width {
return string
}
let c = (width - string.count)/2
return String(repeating: " ", count: c) + string
+ String(repeating: " ", count: width - string.count - c)
}
func formatMonth(year: Int, month: Int) -> [String] {
let calendar = Calendar.current
let dc = DateComponents(year: year, month: month, day: 1)
let date = calendar.date(from: dc)!
let firstDay = calendar.component(.weekday, from: date) - 1
let range = calendar.range(of: .day, in: .month, for: date)!
let daysInMonth = range.count
var lines: [String] = []
lines.append(centre(string: dateFormatter.string(from: date), width: monthWidth))
lines.append(dayNames)
var padWidth = 2
var line = String(repeating: " ", count: 3 * firstDay)
for day in 1...daysInMonth {
line += rpad(string: String(day), width: padWidth)
padWidth = 3
if (firstDay + day) % 7 == 0 {
lines.append(line)
line = ""
padWidth = 2
}
}
if line.count > 0 {
lines.append(lpad(string: line, width: monthWidth))
}
return lines
}
func printCentred(string: String, width: Int) {
print(rpad(string: string, width: (width + string.count)/2))
}
public func printCalendar(year: Int, width: Int) {
let months = min(12, max(1, (width + monthGap)/(monthWidth + monthGap)))
let lineWidth = monthWidth * months + monthGap * (months - 1)
printCentred(string: "[Snoopy]", width: lineWidth)
printCentred(string: String(year), width: lineWidth)
var firstMonth = 1
while firstMonth <= 12 {
if firstMonth > 1 {
print()
}
let lastMonth = min(12, firstMonth + months - 1)
let monthCount = lastMonth - firstMonth + 1
var lines: String = []
var lineCount = 0
for month in firstMonth...lastMonth {
let monthLines = formatMonth(year: year, month: month)
lineCount = max(lineCount, monthLines.count)
lines.append(monthLines)
}
for i in 0..<lineCount {
var line = ""
for month in 0..<monthCount {
if month > 0 {
line.append(String(repeating: " ", count: monthGap))
}
line.append(i < lines[month].count ? lines[month][i]
: String(repeating: " ", count: monthWidth))
}
print(line)
}
firstMonth = lastMonth + 1
}
}
printCalendar(year: 1969, width: 80)</lang>
- Output:
[Snoopy]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Tcl
Due to the prevalence of 80 column devices instead of 132 column ones, this code produces 3 months at a time instead of 4. <lang tcl>package require Tcl 8.5
- Produce information about the days in a month, without any assumptions about
- what those days actually are.
proc calMonthDays {timezone locale year month} {
set days {}
set moment [clock scan [format "%04d-%02d-00 12:00" $year $month] \
-timezone $timezone -locale $locale -format "%Y-%m-%d %H:%M"]
while 1 {
set moment [clock add $moment 1 day] lassign [clock format $moment -timezone $timezone -locale $locale \ -format "%m %d %u"] m d dow if {[scan $m %d] != $month} { return $days } lappend days $moment [scan $d %d] $dow
}
}
proc calMonth {year month timezone locale} {
set dow 0
set line ""
set lines {}
foreach {t day dayofweek} [calMonthDays $timezone $locale $year $month] {
if {![llength $lines]} {lappend lines $t} if {$dow > $dayofweek} { lappend lines [string trimright $line] set line "" set dow 0 } while {$dow < $dayofweek-1} { append line " " incr dow } append line [format "%2d " $day] set dow $dayofweek
} lappend lines [string trimright $line]
}
proc cal3Month {year month timezone locale} {
# Extract the month data
set d1 [lassign [calMonth $year $month $timezone $locale] t1]; incr month
set d2 [lassign [calMonth $year $month $timezone $locale] t2]; incr month
set d3 [lassign [calMonth $year $month $timezone $locale] t3]
# Print the header line of month names
foreach t [list $t1 $t2 $t3] {
set m [clock format $t -timezone $timezone -locale $locale -format "%B"] set l [expr {10 + [string length $m]/2}] puts -nonewline [format "%-25s" [format "%*s" $l $m]]
}
puts ""
# Print the month days
foreach l1 $d1 l2 $d2 l3 $d3 {
puts [format "%-25s%-25s%s" $l1 $l2 $l3]
}
}
proc cal {{year ""} {timezone :localtime} {locale en}} {
if {$year eq ""} {
set year [clock format [clock seconds] -format %Y]
}
puts [format "%40s" "-- $year --"]
foreach m {1 4 7 10} {
puts "" cal3Month $year $m $timezone $locale
}
}
proc snoopy {} {
puts [format "%43s\n" {[Snoopy Picture]}]
}
snoopy cal</lang> Which produces this output:
[Snoopy Picture]
-- 2011 --
January February March
1 2 1 2 3 4 5 6 1 2 3 4 5 6
3 4 5 6 7 8 9 7 8 9 10 11 12 13 7 8 9 10 11 12 13
10 11 12 13 14 15 16 14 15 16 17 18 19 20 14 15 16 17 18 19 20
17 18 19 20 21 22 23 21 22 23 24 25 26 27 21 22 23 24 25 26 27
24 25 26 27 28 29 30 28 28 29 30 31
31
April May June
1 2 3 1 1 2 3 4 5
4 5 6 7 8 9 10 2 3 4 5 6 7 8 6 7 8 9 10 11 12
11 12 13 14 15 16 17 9 10 11 12 13 14 15 13 14 15 16 17 18 19
18 19 20 21 22 23 24 16 17 18 19 20 21 22 20 21 22 23 24 25 26
25 26 27 28 29 30 23 24 25 26 27 28 29 27 28 29 30
30 31
July August September
1 2 3 1 2 3 4 5 6 7 1 2 3 4
4 5 6 7 8 9 10 8 9 10 11 12 13 14 5 6 7 8 9 10 11
11 12 13 14 15 16 17 15 16 17 18 19 20 21 12 13 14 15 16 17 18
18 19 20 21 22 23 24 22 23 24 25 26 27 28 19 20 21 22 23 24 25
25 26 27 28 29 30 31 29 30 31 26 27 28 29 30
October November December
1 2 1 2 3 4 5 6 1 2 3 4
3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11
10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18
17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25
24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31
31
If a different year is chosen, it's printed… <lang tcl>snoopy cal 1969</lang>
[Snoopy Picture]
-- 1969 --
January February March
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April May June
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July August September
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October November December
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
The code also handles Julian/Gregorian switch dates correctly, but must be told what locale to format the switch as and for what timezone in that case. For example, Spain was one of the first countries to make the change: <lang tcl>snoopy cal 1582 :Europe/Madrid es_ES</lang>
[Snoopy Picture]
-- 1582 --
enero febrero marzo
1 2 3 4 5 6 7 1 2 3 4 1 2 3 4
8 9 10 11 12 13 14 5 6 7 8 9 10 11 5 6 7 8 9 10 11
15 16 17 18 19 20 21 12 13 14 15 16 17 18 12 13 14 15 16 17 18
22 23 24 25 26 27 28 19 20 21 22 23 24 25 19 20 21 22 23 24 25
29 30 31 26 27 28 26 27 28 29 30 31
abril mayo junio
1 1 2 3 4 5 6 1 2 3
2 3 4 5 6 7 8 7 8 9 10 11 12 13 4 5 6 7 8 9 10
9 10 11 12 13 14 15 14 15 16 17 18 19 20 11 12 13 14 15 16 17
16 17 18 19 20 21 22 21 22 23 24 25 26 27 18 19 20 21 22 23 24
23 24 25 26 27 28 29 28 29 30 31 25 26 27 28 29 30
30
julio agosto septiembre
1 1 2 3 4 5 1 2
2 3 4 5 6 7 8 6 7 8 9 10 11 12 3 4 5 6 7 8 9
9 10 11 12 13 14 15 13 14 15 16 17 18 19 10 11 12 13 14 15 16
16 17 18 19 20 21 22 20 21 22 23 24 25 26 17 18 19 20 21 22 23
23 24 25 26 27 28 29 27 28 29 30 31 24 25 26 27 28 29 30
30 31
octubre noviembre diciembre
1 2 3 4 15 16 17 1 2 3 4 5 6 7 1 2 3 4 5
18 19 20 21 22 23 24 8 9 10 11 12 13 14 6 7 8 9 10 11 12
25 26 27 28 29 30 31 15 16 17 18 19 20 21 13 14 15 16 17 18 19
22 23 24 25 26 27 28 20 21 22 23 24 25 26
29 30 27 28 29 30 31
As can be seen, a Real Programmer has many intricacies to deal with!
uBasic/4tH
The required "Snoopy" code is here. Use it when you feel like it. <lang>Print " XXXX" Print " X XX" Print " X *** X XXXXX" Print " X ***** X XXX XX" Print " XXXX ******* XXX XXXX XX" Print " XX X ****** XXXXXXXXX XX XXX" Print " XX X **** X X** X" Print " X XX XX X X***X" Print " X //XXXX X XXXX" Print " X // X XX" Print " X // X XXXXXXXXXXXXXXXXXX/" Print " X XXX// X X" Print " X X X X X" Print " X X X X X" Print " X X X X X XX" Print " X X X X X XXX XX" Print " X XXX X X X X X X" Print " X X X XX X XXXX" Print " X X XXXXXXXX\\ XX XX X" Print " XX XX X X X XX" Print " XX XXXX XXXXXX/ X XXXX" Print " XXX XX*** X X" Print " XXXXXXXXXXXXX * * X X" Print " *---* X X X" Print " *-* * XXX X X" Print " *- * XXX X" Print " *- *X XXX" Print " *- *X X XXX" Print " *- *X X XX" Print " *- *XX X X" Print " * *X* X X X" Print " * *X * X X X" Print " * * X** X XXXX X" Print " * * X** XX X X" Print " * ** X** X XX X" Print " * ** X* XXX X X" Print " * ** XX XXXX XXX" Print " * * * XXXX X X" Print " * * * X X X" Print " =======******* * * X X XXXXXXXX\\" Print " * * * /XXXXX XXXXXXXX\\ )" Print " =====********** * X ) \\ )" Print " ====* * X \\ \\ )XXXXX" Print " =========********** XXXXXXXXXXXXXXXXXXXXXX"</lang> This is the code that generates the calendar: <lang>Input "Year to print: "; Y ' input required year
Push 63 : Gosub _Space ' center year Print Y
For M = 1 To 7 Step 6 ' two rows of six months
For C = 0 To 5 ' print months Push 1, M + C, Y : Gosub _FnMjd : @(C+6) = Pop()
Push 5 : Gosub _Space ' print month name Gosub (M + C)
If C = 5 Then ' is it the last month?
Print ' if so, terminate line
Else ' if not, print eight spaces
Push 8 : Gosub _Space
EndIf
Next
For C = 0 To 5 ' print days header Print "Su Mo Tu We Th Fr Sa";
If C = 5 Then ' is it the last month?
Print ' if so, terminate line
Else ' if not, print two spaces
Push 2 : Gosub _Space
EndIf
' get days/month
Push M + C, Y : Gosub _FnDim : @(C+12) = Pop()
@(C) = 1 ' initialize array while we're at it
Next
C = 0 ' no columns printed yet Q = 0 ' keep track of position
Do ' get day of the week Push @(C+6) : Gosub _FnDow : Z = Pop ()
If @(C) - 1 < @(C + 12) Then
' if a position requested BEFORE
If (Z*3 + C*22) < Q Then ' the current position
Print ' then terminate the line
Q = 0 ' and reset the counter
Endif
' goto required position on screen
Push (Z*3 + C*22) - Q : Gosub _Space
Q = Z*3 + C*22 ' set counter to that position
If @(C) < 10 Then ' if only one digit date
Print " "; ' then compensate
Endif
Print @(C); ' print the date
Q = Q + 2 ' and update the position
@(C) = @(C) + 1
@(C+6) = @(C+6) + 1
Endif
' increment columns,
If (Z = 6) + (@(C)>@(C+12)) Then ' wrap around if required
C = (C + 1) % 6
EndIf
' loop until all dates are printed
Until (@(0)>@(0+12))*(@(1)>@(1+12))*(@(2)>@(2+12))*(@(3)>@(3+12))*(@(4)>@(4+12))*(@(5)>@(5+12))
Loop
Print ' terminate row with LF
Next
End
' convert D/M/Y to Julian date
_FnMjd ' (day month year -- julian date)
R = Pop() ' pop year S = Pop() - 3 ' pop month T = Pop() ' pop day
If S < 0 Then ' if month negative S = S + 12 ' add 12 months R = R - 1 ' and subtract a year Endif
Push T + (153*S+2)/5 + R*365 + R/4 - R/100 + R/400 - 678882
Return
' calculate day of the week
_FnDow ' (julian -- day-of-week)
Push (Pop()+2400002)%7 ' convert julian date to day of week
Return
' calculate days in month
_FnDim ' (month year -- #days)
R = Pop() ' pop year S = Pop() ' pop month
If S = 2 Then ' if February, get no. days
Push 28 + ((R%4)=0) - ((R%100)=0) + ((R%400)=0)
Else ' otherwise, either 30 or 31
If (S = 4) + (S = 6) + (S = 9) + (S = 11) Then
Push 30
Else
Push 31
Endif
Endif
Return
' print a number of spaces
_Space ' (#spaces --)
For X = 1 To Pop() ' print n spaces Print " "; Next
Return
' month name subroutines
001 Print " January "; : Return ' all have a fixed length 002 Print " February"; : Return ' which simplifies things 003 Print " March "; : Return 004 Print " April "; : Return 005 Print " May "; : Return 006 Print " June "; : Return 007 Print " July "; : Return 008 Print " August "; : Return 009 Print "September"; : Return 010 Print " October "; : Return 011 Print " November"; : Return 012 Print " December"; : Return</lang> Output (missing Snoopy):
Year to print: 1969
1969
January February March April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8 6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15 13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22 20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30 25 26 27 28 29 30 31 29 30
30 31
July August September October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6 1 2 3 4 1 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
31 30
0 OK, 0:2753
UNIX Shell
All Unix variations come with the cal command which makes the task very easy. <lang bash>
- !/bin/sh
echo "Snoopy goes here" cal 1969 </lang>
Output produced:
Snoopy goes here
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Vedit macro language
This implementation uses the calendar.vdm macro that comes with Vedit. (So it serves as an example of how to call other macros from a macro.)
See CALENDAR task for a stand-alone version.
Calendar.vdm draws one month calendar. That is then copied as columnar block and pasted to the 1969 calendar.
<lang vedit>Buf_Switch(Buf_Free) Config_Tab(5,30,55)
- 9 = 1 // first day of week: 0=Su, 1=Mo
- 3 = 3 // number of months per line
- 2 = 1969 // year
- 1 = 1 // starting month
Repeat(12/#3) {
Repeat (#3) {
Buf_Switch(Buf_Free)
Call_File(122, "calendar.vdm", "DRAW_CALENDAR")
Reg_Copy_Block(10, 1, EOB_Pos, COLSET, 1, 21)
Buf_Quit(OK)
EOL Ins_Char(9)
#5 = Cur_Pos
Reg_Ins(10)
Goto_Pos(#5)
#1++
}
EOF
Ins_Newline(2)
} </lang>
The code above creates calendar for 80x43 display. For 132 column display, change #3 (number of months per line) to 4 or 6, and adjust the tab positions if required. The following would work with all widhts, but the left/right margin would not be balanced. <lang vedit>Config_Tab(22)</lang>
Output:
January 1969 February 1969 March 1969
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
-------------------- -------------------- --------------------
1 2 3 4 5 1 2 1 2
6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9
13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16
20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23
27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30
31
April 1969 May 1969 June 1969
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
-------------------- -------------------- --------------------
1 2 3 4 5 6 1 2 3 4 1
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29
30
July 1969 August 1969 September 1969
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
-------------------- -------------------- --------------------
1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7
7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14
14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21
21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28
28 29 30 31 25 26 27 28 29 30 31 29 30
October 1969 November 1969 December 1969
Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su
-------------------- -------------------- --------------------
1 2 3 4 5 1 2 1 2 3 4 5 6 7
6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14
13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21
20 21 22 23 24 25 26 17 18 19 20 21 22 23 22 23 24 25 26 27 28
27 28 29 30 31 24 25 26 27 28 29 30 29 30 31
Visual Basic .NET
Compiler: Roslyn Visual Basic (language version >= 15.8)
Inspired by C#. Uses iterators to generate months row-by-row and interleave them to print multiple months beside each other. Attempts to scale to specified row/column count. Minimal validation of numeric arguments is performed, so crashes may occur for certain too-small row and column counts.
Does not handle 1752.
Options and imports statements (all parts must be in one file): <lang vbnet>Option Compare Binary Option Explicit On Option Infer On Option Strict On
Imports System.Globalization Imports System.Text Imports System.Runtime.InteropServices Imports System.Runtime.CompilerServices</lang>
Helper to parse command-line arguments. <lang vbnet>Module ArgHelper
ReadOnly _ArgDict As New Dictionary(Of String, String)()
Delegate Function TryParse(Of T, TResult)(value As T, <Out> ByRef result As TResult) As Boolean
Sub InitializeArguments(args As String())
For Each item In args
item = item.ToUpperInvariant()
If item.Length > 0 AndAlso item(0) <> """"c Then
Dim colonPos = item.IndexOf(":"c, StringComparison.Ordinal)
If colonPos <> -1 Then
' Split arguments with colons into key(part before colon) / value(part after colon) pairs.
_ArgDict.Add(item.Substring(0, colonPos), item.Substring(colonPos + 1, item.Length - colonPos - 1))
End If
End If
Next
End Sub
Sub FromArgument(Of T)(
key As String,
<Out> ByRef var As T,
getDefault As Func(Of T),
tryParse As TryParse(Of String, T),
Optional validate As Predicate(Of T) = Nothing)
Dim value As String = Nothing
If _ArgDict.TryGetValue(key.ToUpperInvariant(), value) Then
If Not (tryParse(value, var) AndAlso (validate Is Nothing OrElse validate(var))) Then
Console.WriteLine($"Invalid value for {key}: {value}")
Environment.Exit(-1)
End If
Else
var = getDefault()
End If
End Sub
End Module</lang>
Program: <lang vbnet>Module Program
Sub Main(args As String())
Dim dt As Date
Dim columns, rows, monthsPerRow As Integer
Dim vertStretch, horizStretch, resizeWindow As Boolean
InitializeArguments(args)
FromArgument("date", dt, Function() New Date(1969, 1, 1), AddressOf Date.TryParse)
FromArgument("cols", columns, Function() 80, AddressOf Integer.TryParse, Function(v) v >= 20)
FromArgument("rows", rows, Function() 43, AddressOf Integer.TryParse, Function(v) v >= 0)
FromArgument("ms/row", monthsPerRow, Function() 0, AddressOf Integer.TryParse, Function(v) v <= 12 AndAlso v <= columns \ 20)
FromArgument("vstretch", vertStretch, Function() True, AddressOf Boolean.TryParse)
FromArgument("hstretch", horizStretch, Function() True, AddressOf Boolean.TryParse)
FromArgument("wsize", resizeWindow, Function() True, AddressOf Boolean.TryParse)
' The scroll bar in command prompt seems to take up part of the last column.
If resizeWindow Then
Console.WindowWidth = columns + 1
Console.WindowHeight = rows
End If
If monthsPerRow < 1 Then monthsPerRow = Math.Max(columns \ 22, 1)
For Each row In GetCalendarRows(dt:=dt, width:=columns, height:=rows, monthsPerRow:=monthsPerRow, vertStretch:=vertStretch, horizStretch:=horizStretch)
Console.Write(row)
Next
End Sub
Iterator Function GetCalendarRows(
dt As Date,
width As Integer,
height As Integer,
monthsPerRow As Integer,
vertStretch As Boolean,
horizStretch As Boolean) As IEnumerable(Of String)
Dim year = dt.Year
Dim calendarRowCount As Integer = CInt(Math.Ceiling(12 / monthsPerRow))
' Make room for the three empty lines on top.
Dim monthGridHeight As Integer = height - 3
Yield "[Snoopy]".PadCenter(width) & Environment.NewLine
Yield year.ToString(CultureInfo.InvariantCulture).PadCenter(width) & Environment.NewLine
Yield Environment.NewLine
Dim month = 0
Do While month < 12
Dim rowHighestMonth = Math.Min(month + monthsPerRow, 12)
Dim cellWidth = width \ monthsPerRow
' Special case when displaying only one calendar cell in a row to make 20-wide work. Adds padding between cells otherwise.
Dim cellContentWidth = If(monthsPerRow = 1, cellWidth, (cellWidth * 19) \ 20)
Dim cellHeight = monthGridHeight \ calendarRowCount
Dim cellContentHeight = (cellHeight * 19) \ 20
' Creates a month cell for the specified month (1-12).
Dim getMonthFrom =
Function(m As Integer) BuildMonth(
dt:=New Date(dt.Year, m, 1),
width:=cellContentWidth,
height:=cellContentHeight,
vertStretch:=vertStretch,
horizStretch:=horizStretch).Select(Function(x) x.PadCenter(cellWidth))
' The months in this row of the calendar.
Dim monthsThisRow As IEnumerable(Of IEnumerable(Of String)) =
Enumerable.Select(Enumerable.Range(month + 1, rowHighestMonth - month), getMonthFrom)
Dim calendarRow As IEnumerable(Of String) =
Interleaved(
monthsThisRow,
useInnerSeparator:=False,
useOuterSeparator:=True,
outerSeparator:=Environment.NewLine)
Dim en = calendarRow.GetEnumerator()
Dim hasNext = en.MoveNext()
Do While hasNext
Dim current As String = en.Current
' To maintain the (not strictly needed) contract of yielding complete rows, keep the newline after
' the calendar row with the last terminal row of the row.
hasNext = en.MoveNext()
Yield If(hasNext, current, current & Environment.NewLine)
Loop
month += monthsPerRow
Loop
End Function
<summary>
Interleaves the elements of the specified sub-sources by making successive passes through the source
enumerable, yielding a single element from each sub-source in sequence in each pass, optionally inserting a
separator between elements of adjacent sub-sources and optionally a different separator at the end of each
pass through all the sources. (i.e., between elements of the last and first source)
</summary>
<typeparam name="T">The type of the elements of the sub-sources.</typeparam>
<param name="sources">A sequence of the sequences whose elements are to be interleaved.</param>
<param name="useInnerSeparator">Whether to insert <paramref name="useInnerSeparator"/> between the elements ofadjacent sub-sources.</param>
<param name="innerSeparator">The separator between elements of adjacent sub-sources.</param>
<param name="useOuterSeparator">Whether to insert <paramref name="outerSeparator"/> between the elements of the last and first sub-sources.</param>
<param name="outerSeparator">The separator between elements of the last and first sub-source.</param>
<param name="whileAny">If <see langword="true"/>, the enumeration continues until every given subsource is empty;
if <see langword="false"/>, the enumeration stops as soon as any enumerable no longer has an element to supply for the next pass.</param>
Iterator Function Interleaved(Of T)(
sources As IEnumerable(Of IEnumerable(Of T)),
Optional useInnerSeparator As Boolean = False,
Optional innerSeparator As T = Nothing,
Optional useOuterSeparator As Boolean = False,
Optional outerSeparator As T = Nothing,
Optional whileAny As Boolean = True) As IEnumerable(Of T)
Dim sourceEnumerators As IEnumerator(Of T)() = Nothing
Try
sourceEnumerators = sources.Select(Function(x) x.GetEnumerator()).ToArray()
Dim numSources = sourceEnumerators.Length
Dim enumeratorStates(numSources - 1) As Boolean
Dim anyPrevIters As Boolean = False
Do
' Indices of first and last sub-sources that have elements.
Dim firstActive = -1, lastActive = -1
' Determine whether each sub-source that still have elements.
For i = 0 To numSources - 1
enumeratorStates(i) = sourceEnumerators(i).MoveNext()
If enumeratorStates(i) Then
If firstActive = -1 Then firstActive = i
lastActive = i
End If
Next
' Determine whether to yield anything in this iteration based on whether whileAny is true.
' Not yielding anything this iteration implies that the enumeration has ended.
Dim thisIterHasResults As Boolean = If(whileAny, firstActive <> -1, firstActive = 0 AndAlso lastActive = numSources - 1)
If Not thisIterHasResults Then Exit Do
' Don't insert a separator on the first pass.
If anyPrevIters Then
If useOuterSeparator Then Yield outerSeparator
Else
anyPrevIters = True
End If
' Go through and yield from the sub-sources that still have elements.
For i = 0 To numSources - 1
If enumeratorStates(i) Then
' Don't insert a separator before the first element.
If i > firstActive AndAlso useInnerSeparator Then Yield innerSeparator
Yield sourceEnumerators(i).Current
End If
Next
Loop
Finally
If sourceEnumerators IsNot Nothing Then
For Each en In sourceEnumerators
en.Dispose()
Next
End If
End Try
End Function
<summary>
Returns the rows representing one month cell without trailing newlines. Appropriate leading and trailing
whitespace is added so that every row has the length of width.
</summary>
<param name="dt">A date within the month to represent.</param>
<param name="width">The width of the cell.</param>
<param name="height">The height.</param>
<param name="vertStretch">If <see langword="true" />, blank rows are inserted to fit the available height.
Otherwise, the cell has a constant height of </param>
<param name="horizStretch">If <see langword="true" />, the spacing between individual days is increased to
fit the available width. Otherwise, the cell has a constant width of 20 characters and is padded to be in
the center of the expected width.</param>
Iterator Function BuildMonth(dt As Date, width As Integer, height As Integer, vertStretch As Boolean, horizStretch As Boolean) As IEnumerable(Of String)
Const DAY_WDT = 2 ' Width of a day.
Const ALLDAYS_WDT = DAY_WDT * 7 ' Width of al ldays combined.
' Normalize the date to January 1.
dt = New Date(dt.Year, dt.Month, 1)
' Horizontal whitespace between days of the week. Constant of 6 represents 6 separators per line.
Dim daySep As New String(" "c, Math.Min((width - ALLDAYS_WDT) \ 6, If(horizStretch, Integer.MaxValue, 1)))
' Number of blank lines between rows.
Dim vertblankCount = If(Not vertStretch, 0, (height - 8) \ 7)
' Width of each day * 7 days in one row + day separator length * 6 separators per line.
Dim blockWidth = ALLDAYS_WDT + daySep.Length * 6
' The whitespace at the beginning of each line.
Dim leftPad As New String(" "c, (width - blockWidth) \ 2)
' The whitespace for blank lines.
Dim fullPad As New String(" "c, width)
' Lines are "staged" in the stringbuilder.
Dim sb As New StringBuilder(leftPad)
Dim numLines = 0
' Get the current line so far form the stringbuilder and begin a new line.
' Returns the current line and trailing blank lines used for vertical padding (if any).
' Returns empty enumerable if the height requirement has been reached.
Dim EndLine =
Function() As IEnumerable(Of String)
Dim finishedLine As String = sb.ToString().PadRight(width)
sb.Clear()
sb.Append(leftPad)
' Use an inner iterator to prevent lazy execution of side effects of outer function.
Return If(numLines >= height,
Enumerable.Empty(Of String)(),
Iterator Function() As IEnumerable(Of String)
Yield finishedLine
numLines += 1
For i = 1 To vertblankCount
If numLines >= height Then Return
Yield fullPad
numLines += 1
Next
End Function())
End Function
' Yield the month name.
sb.Append(PadCenter(dt.ToString("MMMM", CultureInfo.InvariantCulture), blockWidth))
For Each l In EndLine()
Yield l
Next
' Yield the header of weekday names.
Dim weekNmAbbrevs = [Enum].GetNames(GetType(DayOfWeek)).Select(Function(x) x.Substring(0, 2))
sb.Append(String.Join(daySep, weekNmAbbrevs))
For Each l In EndLine()
Yield l
Next
' Day of week of first day of month.
Dim startWkDy = CInt(dt.DayOfWeek)
' Initialize with empty space for the first line.
Dim firstPad As New String(" "c, (DAY_WDT + daySep.Length) * startWkDy)
sb.Append(firstPad)
Dim d = dt
Do While d.Month = dt.Month
sb.AppendFormat(CultureInfo.InvariantCulture, $"{{0,{DAY_WDT}}}", d.Day)
' Each row ends on saturday.
If d.DayOfWeek = DayOfWeek.Saturday Then
For Each l In EndLine()
Yield l
Next
Else
sb.Append(daySep)
End If
d = d.AddDays(1)
Loop
' Keep adding empty lines until the height quota is met.
Dim nextLines As IEnumerable(Of String)
Do
nextLines = EndLine()
For Each l In nextLines
Yield l
Next
Loop While nextLines.Any()
End Function
<summary>
Returns a new string that center-aligns the characters in this string by padding to the left and right with
the specified character to a specified total length.
</summary>
<param name="s">The string to center-align.</param>
<param name="totalWidth">The number of characters in the resulting string.</param>
<param name="paddingChar">The padding character.</param>
<Extension()>
Private Function PadCenter(s As String, totalWidth As Integer, Optional paddingChar As Char = " "c) As String
Return s.PadLeft(((totalWidth - s.Length) \ 2) + s.Length, paddingChar).PadRight(totalWidth, paddingChar)
End Function
End Module </lang>
Command-line arguments:
Syntax: <name>:<value>, space-separated and optionally enclosed in quotes.
- date: Date within year to display. Accepts whatever the .NET DateTime parser is able to parse. Default: 1969-01-01.
- cols: Number of columns to display. Default: 80. Min: 20.
- rows: Number of rows to display. Default: 43. Min: 0.
- ms/row: Number of months per row (or as many as possible for values < 1). Default: 0. Max: 12 or cols*20.
- vstretch: Whether individual months are expanded with whitespace to fill vertical space. Default: true.
- hstretch: Whether individual months are expanded with whitespace to fill horizontal space. Default: true.
- wsize: Whether to resize the command window to the value given by cols and rows. Set to false if the program is crashing with an error about the console buffer. Default: true.
- Output (80x43 [default with no args]):
[Snoopy]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
- Output (132-column demonstrating stretching) — for input
cols:132 rows:60 ms/row:4:
[Snoopy]
1969
January February March April
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 1 2 3 4 5
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8 6 7 8 9 10 11 12
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15 13 14 15 16 17 18 19
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22 20 21 22 23 24 25 26
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30
30 31
May June July August
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 1 2 3 4 5 6 7 1 2 3 4 5 1 2
4 5 6 7 8 9 10 8 9 10 11 12 13 14 6 7 8 9 10 11 12 3 4 5 6 7 8 9
11 12 13 14 15 16 17 15 16 17 18 19 20 21 13 14 15 16 17 18 19 10 11 12 13 14 15 16
18 19 20 21 22 23 24 22 23 24 25 26 27 28 20 21 22 23 24 25 26 17 18 19 20 21 22 23
25 26 27 28 29 30 31 29 30 27 28 29 30 31 24 25 26 27 28 29 30
31
September October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 1 2 3 4 1 1 2 3 4 5 6
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
- Output (132-column unstretched) — for input
cols:132 rows:30 ms/row:6:
[Snoopy]
1969
January February March April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8 6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15 13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22 20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30 25 26 27 28 29 30 31 29 30
30 31
July August September October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6 1 2 3 4 1 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
31 30
- Output (20-column) — for input
cols:20 rows:120 wsize:false:
[Snoopy]
1969
January
Su Mo Tu We Th Fr Sa
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
February
Su Mo Tu We Th Fr Sa
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28
March
Su Mo Tu We Th Fr Sa
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31
April
Su Mo Tu We Th Fr Sa
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30
May
Su Mo Tu We Th Fr Sa
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
June
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30
July
Su Mo Tu We Th Fr Sa
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31
August
Su Mo Tu We Th Fr Sa
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31
September
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30
October
Su Mo Tu We Th Fr Sa
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
November
Su Mo Tu We Th Fr Sa
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30
December
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
WYLBUR
Unlike IBM 3278 terminals, WYLBUR was "of the time" of 1969. And rather than being a simulation of its display in 20-column mode, the "output" below is an adaptation of the actual display (as simple to create & use in any other text editor not using proportional spacing) for html. This entry is intended to show that WYLBUR could display 1969's calendar in a much smaller area than traditional alternatives (even without ORVYL). It also accomodates the display of Julian and even Old Style Calendars. One has to calculate the day for one Key Date in a given Calendar year, but using a less involved formula than for a pure computer program, since the burden for knowing whether certain months fall in a leap year shifts to the user.
A month appears as numbers (Roman numerals for leap years) below a column of dates which are defined as "Key Dates" for the corresponding months. A Key Day is the day of the week on which Key Dates occur in a Calendar year. Step A describes how to find the Key Day, which is used in Step B to display a calendar just by sliding the columns of dates in the lower output window. In WYLBUR, one slides the row of weekdays instead by inserting or deleting spaces to the left of the first "S" (and vastly easier to align than here via javascript).
A. Calculate the Key Day: for a given date in the Gregorian Calendar, calculate the day on which its Key Dates occur using ([YE32 div 16]+ YEAR div 4 + YEAR) mod 7. (For Julian & Old Style dates, omit the [YE32...] term where the non-century digits of the YEAR are replaced by 32.) The remainder of the division by 7 gives the Key Day as follows: 0=Sunday -> 6=Saturday. For the Gregorian 1969, (120 + 492 + 1969) mod 7 gives Friday as the Key Day.
B. Display the calendar for November: slide the columns so that 28 rests under the Key Day. One has as well the calendar for the prior MARCH & non-leap FEB corresponding to the relevant Calendar of the given date, as shown in the Month Key.
C. Display the calendar for another month: slide the columns so that the Key Day appears in the same column as the number of the month to be displayed, as shown in the Month Key.
N.B. the output window may not scroll in Microsoft browsers; in Firefox a monospaced font might need to be specified, if it's using a proportional one; Chrome displays this properly for both desktop & mobile (9.87+) versions.
- Output:
Any Year Calendar -------------------- S M T W T F S
......................1..2..3..4..5..6 .1..2..3..4..5..6..7..8..9.10.11.12.13 .8..9.10.11.12.13.14.15.16.17.18.19.20 15.16.17.18.19.20.21.22.23.24.25.26.27 22.23.24.25.26.27.28.29.30.31 29.30.31 ..........i.09.................i.09... ii.05.00.04.12.06.03.ii.05.00.04.12.06 08.13.10.07.xv.14.11.08.13.10.07.xv.14
Month Key over the following span of months for relevant Calendar:
00 non-leap JAN: Julian or Gregorian .i a leap JAN on Julian or Gregorian ii a leap FEB on Julian or Gregorian 03 non-leap FEB: Julian or Gregorian 03 MARCH on Julian or Gregorian -- 03 25-31 MARCH: Old Style Calendar 04 to 12: April-December on all three 13 jan on Old Style Calendar 14 feb on Old Style Calendar 14 march 01-24: O. S. non-leap year xv march 01-24: Old Style leap year
Wren
<lang ecmascript>import "/date" for Date import "/fmt" for Fmt import "/seq" for Lst
var calendar = Fn.new { |year|
var snoopy = "🐶"
var days = "Su Mo Tu We Th Fr Sa"
var months = [
"January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"
]
Fmt.print("$70m", snoopy)
var yearStr = "--- %(year) ---"
Fmt.print("$70m\n", yearStr)
var first = List.filled(3, 0)
var mlen = List.filled(3, 0)
var c = 0
for (chunk in Lst.chunks(months, 3)) {
for (i in 0..2) Fmt.write("$20m ", chunk[i])
System.print()
for (i in 0..2) System.write("%(days) ")
System.print()
first[0] = Date.new(year, c*3 + 1, 1).dayOfWeek % 7
first[1] = Date.new(year, c*3 + 2, 1).dayOfWeek % 7
first[2] = Date.new(year, c*3 + 3, 1).dayOfWeek % 7
mlen[0] = Date.monthLength(year, c*3 + 1)
mlen[1] = Date.monthLength(year, c*3 + 2)
mlen[2] = Date.monthLength(year, c*3 + 3)
for (i in 0..5) {
for (j in 0..2) {
var start = 1 + 7 * i - first[j]
for (k in start..start+6) {
if (k >= 1 && k <= mlen[j]) {
Fmt.write("$2d ", k)
} else {
System.write(" ")
}
}
System.write(" ")
}
System.print()
}
System.print()
c = c + 1
}
}
calendar.call(1969)</lang>
- Output:
🐶
--- 1969 ---
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
XLISP
Targets the 132-column imaginary line printer. The day of the week on 1 January of a given year is found using Gauss's algorithm; LEAP-YEARP is taken from the Rosetta Code task on leap years. <lang lisp>(defun calendar (year)
(define months-list '(("JANUARY" 31) ("FEBRUARY" 28) ("MARCH" 31) ("APRIL" 30) ("MAY" 31) ("JUNE" 30) ("JULY" 31) ("AUGUST" 31) ("SEPTEMBER" 30) ("OCTOBER" 31) ("NOVEMBER" 30) ("DECEMBER" 31)))
(define days #(" Sunday " "Monday " "Tuesday " "Wednesday " "Thursday " "Friday " "Saturday"))
(defun gauss-algorithm (a)
(rem (+ 1 (+ (* 5 (rem (- a 1) 4)) (* 4 (rem (- a 1) 100)) (* 6 (rem (- a 1) 400)))) 7))
(defun range (start end)
(if (<= start end)
(cons start (range (+ start 1) end))))
(defun string-repeat (s n)
(if (= n 0)
""
(string-append s (string-repeat s (- n 1)))))
(defun print-month (number-of-days start-day)
(defun print-days (day day-of-week end-day)
(if (= day-of-week 7)
(begin
(newline)
(define day-of-week 0)))
(display (string-repeat " " 8))
(if (= day-of-week 0)
(display (string-repeat " " 6)))
(if (< day 10)
(display " "))
(display day)
(display (string-repeat " " 8))
(if (= day end-day)
(begin
(fresh-line)
(+ day-of-week 1))
(print-days (+ day 1) (+ day-of-week 1) end-day)))
(mapcar (lambda (n) (display (vector-ref days n))) (range 0 6))
(newline)
(display (string-repeat (string-repeat " " 18) start-day))
(print-days 1 start-day number-of-days))
(defun leap-yearp (y)
(and (= (mod year 4) 0) (or (/= (mod year 100) 0) (= (mod year 400) 0))))
(define months (make-table))
(mapcar (lambda (month) (table-set! months (car month) (cadr month))) months-list)
(if (leap-yearp year)
(table-set! months "FEBRUARY" 29))
(defun print-calendar (calendar-months weekday)
(newline)
(newline)
(display (string-repeat " " 60))
(display (caar calendar-months))
(newline)
(define next-month-starts (print-month (table-ref months (caar calendar-months)) weekday))
(if (cdr calendar-months)
(print-calendar (cdr calendar-months) next-month-starts)))
(display (string-repeat " " 60))
(display "******** SNOOPY CALENDAR ")
(display year)
(display " ********")
(newline)
(newline)
(print-calendar months-list (gauss-algorithm year)))
(calendar 1969)</lang>
- Output:
******** SNOOPY CALENDAR 1969 ********
JANUARY
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
FEBRUARY
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28
MARCH
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31
APRIL
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30
MAY
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
JUNE
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30
JULY
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31
AUGUST
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31
SEPTEMBER
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30
OCTOBER
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
NOVEMBER
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30
DECEMBER
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
XPL0
<lang XPL0>include c:\cxpl\codes; \intrinsic 'code' declarations
func WeekDay(Year, Month, Day); \Return day of week (0=Sun 1=Mon..6=Sat) int Year, Month, Day; \Works for years from 1583 onward [if Month<=2 then [Month:= Month+12; Year:= Year-1]; return rem((Day-1 + (Month+1)*26/10 + Year + Year/4 + Year/100*6 + Year/400)/7); ];
proc Space(N); \Display N space characters int N; while N do [ChOut(0, ^ ); N:= N-1];
proc Calendar(Year); \Display calendar for specified year int Year; int Month, Col, C, Line, MoName, Days, DayMax, Day(3); [MoName:= [
" January ", " February", " March ", " April ", " May ", " June ", " July ", " August ", "September", " October", " November", " December"];
Space(35); Text(0, "[Snoopy]"); CrLf(0); Space(37); IntOut(0, Year); CrLf(0); CrLf(0); for Month:= 1 to 12 do
[for Col:= 0 to 3-1 do
[Space(5); Text(0, MoName(Month+Col-1)); Space(7);
if Col<2 then Space(8);
];
CrLf(0);
for Col:= 0 to 3-1 do
[Text(0, "Su Mo Tu We Th Fr Sa");
if Col<2 then Space(9);
];
CrLf(0);
for Col:= 0 to 3-1 do \day of first Sunday of month (can be negative)
Day(Col):= 1 - WeekDay(Year, Month+Col, 1);
for Line:= 0 to 6-1 do
[for Col:= 0 to 3-1 do
[Days:= [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
DayMax:= Days(Month+Col);
if Month+Col=2 & (rem(Year/4)=0 & rem(Year/100)#0 ! rem(Year/400)=0) then
DayMax:= DayMax+1; \if February and leap year then add a day
for C:= 0 to 7-1 do
[if Day(Col)>=1 & Day(Col)<=DayMax then
[IntOut(0, Day(Col));
if Day(Col)<10 then Space(1); \left justify
]
else Space(2); \suppress out of range days
Space(1);
Day(Col):= Day(Col)+1;
];
if Col<2 then Space(8);
];
CrLf(0);
];
CrLf(0);
Month:= Month+2; \2+1 months per Col(umn)
];
];
Calendar(1969)</lang>
- Output:
[Snoopy]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
Yabasic
<lang Yabasic> clear screen
sub snoopy() local n, a$
n = open("snoopy.txt", "r")
while(not eof(#n)) line input #n a$ print " "; : print color("black", "white") a$ wend
close #n end sub
sub floor(n) return int(n + 0.5) end sub
sub string.rep$(s$, n) local i, r$
for i = 1 to n r$ = r$ + s$ next i
return r$ end sub
sub center$(s$, width) local fill1
fill1 = floor(width - len(s$)) / 2
return string.rep$(" ",fill1) + s$ + string.rep$(" ",fill1) end sub
sub makeMonth(name, skip, days, cal$(), j) local cal, curday, line$, i
curday = 1 - skip cal = 3
cal$(j, 2) = " " + daysTitle$ + " " //cal$(j, 1) = center$(months$(name),len(cal$(j, 2))) cal$(j, 1) = left$(months$(name) + string.rep$(" ", 80), len(cal$(j, 2)))
while(cal < 9)
line$ = ""
for i = 1 to 7
if curday < 1 or curday > days then
line$ = line$ + " "
else
line$ = line$ + str$(curday, "###")
end if
curday = curday + 1
next
cal = cal + 1
cal$(j, cal) = line$ + " "
wend end sub
dim months$(12) n = token("JANUARY,FEBRUARY,MARCH,APRIL,MAY,JUNE,JULY,AUGUST,SEPTEMBER,OCTOBER,NOVEMBER,DECEMBER", months$(), ",") daysTitle$ = "MO TU WE TH FR SA SU" dim daysPerMonth(12) for n = 1 to 12 read daysPerMonth(n) next data 31,28,31,30,31,30,31,31,30,31,30,31
sub print_cal(year) local i, q, l, m, startday, sep, monthwidth, calwidth, dpm, calendar$(12, 9), line$(3)
startday=mod(((year-1)*365+floor((year-1)/4)-floor((year-1)/100)+floor((year-1)/400)),7)
if not mod(year,4) and mod(year,100) or not mod(year,400) then daysPerMonth(2)=29 end if sep = 5 monthwidth = len(daysTitle$)
calwidth = 3 * monthwidth + 2 * sep
for i = 1 to 12
dpm = daysPerMonth(i) makeMonth(i, startday, dpm, calendar$(), i) startday = mod(startday + dpm, 7)
next
snoopy()
print center$("--- " + str$(year) + " ---", calwidth), "\n"
print string.rep$(" ", sep + 1);
for q = 0 to 3
for l = 1 to 9
for m = 1 to 3
print calendar$(q * 3 + m, l);
next
print
print string.rep$(" ", sep);
next
print
print string.rep$(" ", sep + 1);
next
end sub
print_cal(2018) </lang>
zkl
Gregorian calender only. Hard coded to a fit on a 80x43 terminal (somewhat half assed). <lang zkl>var [const] D=Time.Date, days="Su Mo Tu We Th Fr Sa";
fcn center(text,m) { String(" "*((m-text.len())/2),text) }
fcn oneMonth(year,month){
day1:=D.zeller(year,month,1); //1969-1-1 -->3 (Wed, ISO 8601)
dayz:=D.daysInMonth(year,month); //1969-1 -->31
List(center(D.monthNames[month],days.len()),days).extend(
(1).pump(dayz,(0).pump(day1,List,T(Void,""))).apply("%2s ".fmt)
.pump(List,T(Void.Read,days.len()/3,False),String.create));
}
const M=70; // mystery number fcn oneYear(y=1969,title="3 Days of Peace & Music"){
println(center(title,M),"\n",center(y.toString(),M),"\n");
[1..12,3].pump(String,'wrap(m){ // 3 months per line
mmm:=(m).pump(3,List,oneMonth.fp(y)); //L(L(7-8 lines), L(...), L(...))
if(mmm.apply("len").sum() % 3) // months have diff # of lines, pad
mmm=mmm.apply("append","");
Utils.zipWith("%-25s%-25s%-25s\n".fmt,
mmm.xplode()).concat() + (if (m<D.October) "\n" else "")
})
}
if(vm.numArgs){ y:=vm.nthArg(0).toInt(); oneYear(y,"").println(); } else oneYear().println();</lang> oneMonth produces a list of strings that make up a one month calender. Each day is three characters, the first line is padded with blanks to line it up with the 1st day of the week. The entire month is one long list of "days" that is then chunked into a list of weeks (one line per week). oneYear takes 3 months and builds the page line by line.
- Output:
3 Days of Peace & Music
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30