⚠️ Warning: This is a draft ⚠️
This means it might contain formatting issues, incorrect code, conceptual problems, or other severe issues.
If you want to help to improve and eventually enable this page, please fork RosettaGit's repository and open a merge request on GitHub.
{{task|Date and time}} 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 [[wp:IBM_3270#Displays|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.
(Ideally, the program will generate well-formatted calendars for any page width from 20 characters up.)
Kudos (κῦδος) for routines that also transition from [https://en.wikipedia.org/wiki/Julian_calendar Julian] to [https://en.wikipedia.org/wiki/Gregorian_calendar Gregorian calendar].
This task is inspired by [http://www.ee.ryerson.ca/~elf/hack/realmen.html 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 - for "real" programmers|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: :* [[Five weekends]]
360 Assembly
{{trans|Free Basic}} This program uses no external functions but two ASSIST macros (XDECO, XPRNT) to keep the code as short as possible.
* 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
{{out}}
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.
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;
We continue with the implementation (printable_calendar.ads):
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;
Now, the main program is really simple:
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;
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
{{works with|ALGOL 68|Revision 1 - no extensions to language used}} {{works with|ALGOL 68G|Any - tested with release [http://sourceforge.net/projects/algol68/files/algol68g/algol68g-1.18.0/algol68g-1.18.0-9h.tiny.el5.centos.fc11.i386.rpm/download 1.18.0-9h.tiny].}} {{wont work with|ELLA ALGOL 68|Any (with appropriate job cards) - tested with release [http://sourceforge.net/projects/algol68/files/algol68toc/algol68toc-1.8.8d/algol68toc-1.8-8d.fc9.i386.rpm/download 1.8-8d] - due to extensive use of '''format'''[ted] ''transput''.}}
#!/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)
)
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
{{trans|Simula}} which is a {{trans|C}} 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.
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.
{{out}}
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
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
}
Examples:
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
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
#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
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
--[[User:BugFix|BugFix]] ([[User talk:BugFix|talk]]) 00:40, 15 November 2013 (UTC)
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",$1) )
# January - December
for (i=1; i<13; i++) {
prmonth(i,newdow,monsize)
newdow=(monsize+newdow) %7
if (newdow == 0) newdow = 7
monsize=substr(days,2+2*i,2)
if (leap == 1 && monsize == 28) monsize = 29
}
}
Output:
[ picture of Snoopy goes here ]
1969
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 3 1 2 3 4 5 6 7
6 7 8 9 10 11 12 4 5 6 7 8 9 10 8 9 10 11 12 13 14
13 14 15 16 17 18 19 11 12 13 14 15 16 17 15 16 17 18 19 20 21
20 21 22 23 24 25 26 18 19 20 21 22 23 24 22 23 24 25 26 27 28
27 28 29 30 25 26 27 28 29 30 31 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 1 2 1 2 3 4 5 6
6 7 8 9 10 11 12 3 4 5 6 7 8 9 7 8 9 10 11 12 13
13 14 15 16 17 18 19 10 11 12 13 14 15 16 14 15 16 17 18 19 20
20 21 22 23 24 25 26 17 18 19 20 21 22 23 21 22 23 24 25 26 27
27 28 29 30 31 24 25 26 27 28 29 30 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 1 1 2 3 4 5 6
5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
30
BaCon
Choosing 132 character output.
DECLARE month$[] = { "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
{{out}}
[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
::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
{{Out}}
[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
{{works with|BBC BASIC for Windows}} The day and month names are in the language for which the PC is configured.
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
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 [[Calendar#C|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).
"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
C
With arbitrary display width (>= 20 though) and auto spacing.
#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);
}
C++
#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;
}
//--------------------------------------------------------------------------------------------------
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 | |
+----------------------+----------------------+----------------------+
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.
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), ' '));
}
}
}
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.
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.
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.
(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))))
{{out}}
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
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);
}
[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
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.
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
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
' 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
{{out}}
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
F Sharp
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
{{out}}
> 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
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
{{out}}
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
FutureBasic
include "ConsoleWindow"
dim as Str255 a
open "UNIX", 1,"cal 1969"
do
line input #1, a
print a
until eof(1)
close 1
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
Public Sub Main()
Shell "cal 1969"
End
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
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()
}
}
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
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'
*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
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
);
}
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
=={{header|Icon}} and {{header|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.
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
{{libheader|Icon Programming Library}} [http://www.cs.arizona.edu/icon/library/src/procs/datetime.icn 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:'''
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
'''Example use:'''
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 │
Java
{{trans|D}}
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();
}
}
}
{{out}}
[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
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)
Kotlin
{{trans|D}}
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)
}
{{out}} See D output.
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
Usage:
calObj = script("Calendar").new()
calStr = calObj.make(1969)
put calStr
{{out}}
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
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)
{{out}}
[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).
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), $(2,22), Title$(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
Mathematica
Calendar is set of routines for handling calendars; It is built into Mathematica. We're only going to use it for a two functions, namely, '''DayOfWeek''' and '''DaysBetween'''.
Needs["Calendar`"];
Monthly calendar takes a year and a month and returns a simply formatted calendar for that month. It knows about leap years.
monthlyCalendar[y_, m_] :=
Module[{
days = {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday},
months = {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"},
d1, shortDays, offset, daysInMonth},
d1 = DayOfWeek[{y, m, 1}];
daysInMonth[year_, month_] := DaysBetween[{year, month, 1}, {If[month == 12, year + 1, year], If[month == 12, 1, month + 1], 1}];
shortDays = (StringTake[ToString[#], 3] & /@ days);
offset = d1 /. Thread[days -> Range[0, 6]];
Grid[
Prepend[
Prepend[
Partition[
PadRight[PadLeft[Range[daysInMonth[y, m]], daysInMonth[y, m] + offset, ""],
36, "" ],
7],
shortDays],
{months[[m]], SpanFromLeft}]]]
'''yearlyCalendar''' prints out calendars for each of the 12 months in the year.
yearlyCalendar[y_] := Grid[Partition[Table[monthlyCalendar[y, k], {k, 12}], 3], Spacings -> {4, 2}];
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 ()
{{out}}
$ 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
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] }))
}
}
}
Perl
#!/usr/bin/perl
use strict;
use warnings;
use Time::Local;
my @names = qw/ JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC/;
my $year = shift ||'2007';
for my $month (0..11) {
print " $names[$month] $year\n";
print calendar($year, $month), "\n\n";
}
sub calendar {
my ($year, $month) = @_;
my @mon_days = qw/31 28 31 30 31 30 31 31 30 31 30 31/;
++$mon_days[1] if $year % 4 == 0 && ($year % 400 == 0 || $year % 1
+00 != 0);
my $cal = " Sun Mon Tue Wed Thu Fri Sat\n";
# Months are indexed beginning at 0
my $time = timegm(0,0,0,1,$month,$year);
my $wday = (gmtime $time)[6];
$cal .= " " x $wday;
my $mday = 1;
while ($mday <= $mon_days[$month]) {
$cal .= sprintf "%4s", $mday++;
$cal .= "\n" if ($wday + $mday -1) % 7 == 0;
}
return $cal;
}
# Let's use this as a placeholder until a better solution arrives, OK?
Perl 6
{{works with|Rakudo|2015.12}}
my $months-per-col = 3;
my @week-day-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);
exit;
sub fmt-year ($year) {
my $str = (' ' x 30) ~ $year ~ "\n";
my Array @month-strs;
@month-strs[$_] = fmt-month($year, $_).lines.Array for 1 .. 12;
loop ( my $month = 1; $month <= 12; $month += $months-per-col ) {
while @month-strs[$month] {
for ^$months-per-col {
next unless @month-strs[$month+$_];
$str ~= @month-strs[$month+$_].shift;
$str ~= " " x 3;
}
$str ~= "\n";
}
$str ~= "\n";
}
return $str;
}
sub fmt-month ($year, $month) {
my $str = sprintf "%-20s\n", @month-names[$month-1];
$str ~= @week-day-names~"\n";
my $date = DateTime.new(year => $year, month => $month);
my $week-day = $date.day-of-week;
$str ~= (" " xx $week-day-1).join(" ");
for $date.day .. $date.days-in-month -> $day {
$date = DateTime.new(year => $year, month => $month, day => $day);
$str ~= " " if 1 < $week-day < 8;
if $week-day == 8 {
$str ~= "\n";
$week-day = 1;
}
$str ~= sprintf "%2d", $day;
$week-day++;
}
$str ~= " " if $week-day < 8;
$str ~= (" " xx 8-$week-day).join(" ");
$str ~= "\n";
return $str;
}
Phix
Gregorian calender only.
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)
integer dow = day_of_week(year,month,1)
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))
sequence res = {centre(format_timedate(ldm,"Mmmm"),20),"Su Mo Tu We Th Fr Sa"}
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)
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)
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(1969,80)
printf(1,join(repeat("1234567890",8),"")&"\n")
print_calendar(1969,132)
printf(1,join(repeat("1234567890",13),"")&"12\n")
{{out}}
[Spot 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
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
PicoLisp
This "calendar" is nicely formatted, and fits into 20 columns ;-)
(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)
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.
#!/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;
}
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
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;
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
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.
% 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.
Python
The Python [https://docs.python.org/3/library/calendar.html 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.
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
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)
{{out}}
,-~~-.___. ----
/ ()=(() \ 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
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..."]
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).
/*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),,"│║─═┤┐└┴┬├┼┘┌╔╗╚╝╟╢╞╡╫╪╤╧╥╨╠╣")
'''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.
┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐ ┌────────────────────┐
│ 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
# 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
Output image:
[https://www.dropbox.com/s/sj37yypiq45o5cd/CalmoSoftCalendar.jpg?dl=0 Calendar]
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.
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)
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
// 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;
}
}
}
Scala
{{libheader|Scala}}
Scala Version 1
[[Category:Scala examples needing attention]]
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)
}
{{out}}
[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
{{works with|Scala|2.10.1}}
```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(" ") }
}
}
}
```
```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
}
}
}
```
Sample output for 1792:
```txt
[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
```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;
```
Original source: [http://seed7.sourceforge.net/algorith/date.htm#calendar]
The output of this program is:
```txt
[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
{{trans|Perl 6}}
```ruby
require('DateTime')
define months_per_col = 3
define week_day_names =
define month_names =
func fmt_month (year, month) {
var str = sprintf("%-20s\n", month_names[month-1])
str += week_day_names.join(' ')+"\n"
var dt = %s
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)
```
{{out}}
```txt
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
{{trans|C}}
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.
```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;
```
{{out}}
```txt
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''' [https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev] with '''Aconcagua''' loaded.
To run it, evaluate:
```smalltalk>CalendarPrinter printOnTranscriptForYearNumber: 1969>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
```
{{out}}
```txt
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
```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)!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
.
```
{{out}}
```txt
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
```
## 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.
```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
```
Which produces this output:
```txt
[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…
```tcl
snoopy
cal 1969
```
```txt
[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:
```tcl
snoopy
cal 1582 :Europe/Madrid es_ES
```
```txt
[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.
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"
```
This is the code that generates the calendar:
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
Print
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
```
Output (missing Snoopy):
```txt
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.
```bash
#!/bin/sh
echo "Snoopy goes here"
cal 1969
```
Output produced:
```txt
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 - for "real" programmers|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.
```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)
}
```
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.
```vedit
Config_Tab(22)
```
Output:
```txt
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)
{{works with|.NET Core|2.1}}
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):
```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
```
Helper to parse command-line arguments.
```vbnet
Module ArgHelper
ReadOnly _ArgDict As New Dictionary(Of String, String)()
Delegate Function TryParse(Of T, TResult)(value As T, 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,
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
```
Program:
```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
'''
''' 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)
'''
''' The type of the elements of the sub-sources.
''' A sequence of the sequences whose elements are to be interleaved.
''' Whether to insert
''' 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.
'''
''' A date within the month to represent.
''' The width of the cell.
''' The height.
''' If
''' 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.
'''
''' The string to center-align.
''' The number of characters in the resulting string.
''' The padding character.
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
```
====Command-line arguments:====
Syntax: :, 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.
{{out|note=80x43 [default with no args]}}
```txt
[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
```
{{out|input=cols:132 rows:60 ms/row:4|note=132-column demonstrating stretching}}
```txt
[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
```
{{out|input=cols:132 rows:30 ms/row:6|note=132-column unstretched}}
```txt
[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
```
{{out|input=cols:20 rows:120 wsize:false|note=20-column}}
```txt
[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
```
## 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.
```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)
```
{{out}}
```txt
******** 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
```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)
```
{{out}}
```txt
[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
{{trans|Lua}}
```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)
```
## zkl
Gregorian calender only. Hard coded to a fit on a 80x43 terminal (somewhat half assed).
```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
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
```