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{{task|Date and time}}
;Task:
Convert a given date from the [[wp:Gregorian calendar|Gregorian calendar]] to the [[wp:Discordian calendar|Discordian calendar]].
<br><br>
=={{header|8080 Assembly}}==
This program is written to run under CP/M, and it takes a Gregorian date as an argument on the command line, in <code>DDMMYYYY</code> format.
<syntaxhighlight lang="8080asm"> ;; On the 44th day of Discord in the YOLD 3186, ddate
;; has finally come to CP/M.
bdos: equ 5 ; CP/M syscalls
puts: equ 9
putch: equ 2
fcb: equ 5ch
month: equ fcb + 1 ; use the FCB as the date argument
day: equ month + 2
year: equ day + 2
org 100h
;; CP/M will try to parse the command line arguments as if
;; they are filenames. As luck would have it, MMDDYYYY is
;; 8 characters. It would be a shame not to use this.
lxi h,month ; check that the 'filename' is
lxi b,0800h ; all digits (and zero out C)
argcheck: mov a,m
call isdigit
jnc argerror ; if not, give an error and exit
inx h
dcr b
jnz argcheck
;; Fix the year (add 1166 to it, digit by digit)
lxi d,year + 3
lxi h,yearoffset + 3
mvi b,4
ana a ; Clear carry
yeardgt: ldax d ; Get digit
adc m ; Add offset digit
cpi '9' + 1 ; Did we overshoot?
cmc ; Carry is opposite of what we need
jnc yearnextdgt ; No carry = no adjustment
sui 10 ; Compensate
stc ; Carry the one
yearnextdgt: stax d ; Save digit
dcx d ; Look at more significant digit
dcx h
dcr b ; Until we're out of digits
jnz yeardgt
lxi h,year + 4 ; Terminate the year with a $
mvi m,'$' ; for easy output.
;; Is it St. Tib's Day?
lxi d,month ; Check month and day
lxi h,leap ; Against '0229'
mvi b,4
tibcheck: ldax d ; Get date byte
cmp m ; Match against leap day
jnz notibs ; No match = not Tibs
inx h
inx d
dcr b
jnz tibcheck ; if they all match it _is_ Tibs
;; Print "St. Tib's Day in the YOLD NNNN."
lxi d,tibsday
call outs ; fall through into printyear
;; Print " in the YOLD NNNN."
printyear: lxi d,yold
call outs
lxi d,year
jmp outs ; if Tibs, this ends the program
;; It isn't St. Tib's Day. We'll need to do real work :(
notibs: lxi h,month ; Find days at beginning of month
call parsenum ; (not counting Tibs)
dcr a ; subtract one (table is 0-indexed)
cpi 12 ; check that month < 12
jnc argerror ; otherwise, argument error
ana a ; multiply month by 2
ral ; (entries are 2 bytes wide)
lxi h,monthdays ; get days table
mov d,c ; look up the entry (C is zero here)
mov e,a
dad d
mov e,m ; load the 16-bit entry into DE
inx h
mov d,m
lxi h,day ; Find day number
call parsenum
mov l,a ; Add it to the start of the month
mov h,c ; (C is still zero) - to get the day
dad d ; number (still not counting Tibs)
dcx h ; One less (so we have day numbering at 0)
push h ; Keep day number
lxi d,-365 ; Make sure it isn't >365
dad d
jc argerror ; Give an error otherwise
pop h ; Restore day number
push h ; Keep it around
;; Calculate Erisian weekday
lxi d,-5 ; It's not worth it being clever here
weekcalc: dad d
jc weekcalc
lxi d,5
dad d
mov b,l
lxi h,weekdays ; Print the day of the week
call strselect
lxi d,commaday ; Print ", day "
call outs
;; Calculate season and season day number
pop h ; Restore day number
mvi b,-1 ; B will be season
lxi d,-73 ; L will be day
seasoncalc: inr b ; One season further on
dad d ; Is 73 days less
jc seasoncalc
lxi d,73 ; Correct overshoot
dad d
mov h,b ; H:L = season:day
inr l ; One based for output
push h ; Push season and day
mov a,l ; Print day of season
mvi c,'0'-1 ; Tens digit in C
seasondgts: inr c
sui 10
jnc seasondgts
adi '0' + 10 ; Ones digit in A
mov e,c ; Tens digit
call oute
mov e,a ; Ones digit
call oute
lxi d,of ; Print " of "
call outs
pop b ; Retrieve season:day
push b
lxi h,seasons ; Print the season name
call strselect
call printyear ; "... in the YOLD NNNN ..."
;; Is there any reason to celebrate? (day=5 or day=50)
pop b ; Retrieve season:day
mov a,c ; Day.
cpi 5 ; is it 5?
jz party ; Then we party
cpi 50 ; otherwise, is it 50?
rnz ; If not, we're done
party: push b ; Keep day
lxi d,celebrate ; "... Celebrate ..."
call outs
pop b ; Retrieve day
push b
lxi h,holydays5 ; Get holyday from 5 or 50 table
mov a,c
cpi 50
jnz dayname
lxi h,holydays50
dayname: call strselect ; the season is still in B
lxi d,xday
pop b ; Retrieve day once more
mov a,c
cpi 50
jnz outs ; Print 'day' or 'flux' depending
lxi d,xflux
jmp outs
;; Parse the 2-digit number in HL. Return in B (and A)
parsenum: mvi b,0 ; zero accumulator
call parsedigit ; this runs it twice
parsedigit: mov a,b ; B *= 10
add a
mov b,a
add a
add a
add b
add m ; Add the digit
sui '0' ; Subtract '0'
mov b,a
inx h
ret
;; Print the B'th string from HL
strselect: mvi a,'$'
strsearcho: dcr b
jm strfound
strsearchi: cmp m
inx h
jnz strsearchi
jmp strsearcho
strfound: xchg
jmp outs
;; Print the argument error, and exit
argerror: lxi d,argfmt
;; Print the string in DE and exit
error: call outs
rst 0
;; Returns with carry flag set if A is a digit ('0'-'9').
isdigit: cpi '0'
cmc
rnc
cpi '9' + 1
ret
;; Print the string in D.
outs: mvi c,puts
jmp bdos
;; Print character in E, keeping registers.
oute: push psw
push b
push d
push h
mvi c,putch
call bdos
pop h
pop d
pop b
pop psw
ret
;; Accumulated days at start of Gregorian months
;; (in a non-leap year)
monthdays: dw 0,31,59,90,120,151,181,212,243,273,304,334
;; Difference between Gregorian and Erisian year count
;; (we don't need to bother with the year otherwise)
yearoffset: db 1,1,6,6
;; This is matched to MMDD to handle St. Tib's Day
leap: db '0229'
;; Strings
argfmt: db 'DDATE MMDDYYYY$'
weekdays: db 'Sweetmorn$Boomtime$Pungenday$Prickle-Prickle$'
db 'Setting Orange$'
commaday: db ', day $'
of: db ' of $'
seasons: db 'Chaos$Discord$Confusion$Bureaucracy$The Aftermath$'
celebrate: db ': celebrate $'
holydays5: db 'Mung$Mojo$Sya$Zara$Mala$'
xday: db 'day!$'
holydays50: db 'Chao$Disco$Confu$Bure$Af$'
xflux: db 'flux!$'
tibsday: db 'Saint Tib',39,'s Day$'
yold: db ' in the YOLD $'
</syntaxhighlight>
{{out}}
<pre>A>ddate 04272020
Boomtime, day 44 of Discord in the YOLD 3186
A>ddate 09261995
Prickle-Prickle, day 50 of Bureaucracy in the YOLD 3161: celebrate Bureflux!
A>ddate 02291996
Saint Tib's Day in the YOLD 3162
A>ddate 07222011
Pungenday, day 57 of Confusion in the YOLD 3177
A>ddate 01052005
Setting Orange, day 05 of Chaos in the YOLD 3171: celebrate Mungday!
</pre>
=={{header|8086 Assembly}}==
{{trans|8080 Assembly}}
This program runs under DOS. It can take a date on the command line in the form
<code>MM/DD/YYYY</code>, and if a date is not given, it asks DOS for the system date
and uses that instead. It is mostly a port of the 8080 (CP/M) version, but it does use the 8086's new capabilities
where possible, e.g. multiplication and division, and the string lookups are done
using an 8086 string instruction.
This code is written to compile to a <code>.COM</code> file using <code>nasm</code>.
<syntaxhighlight lang="asm"> ;; DDATE for MS-DOS (assembles using nasm)
bits 16
cpu 8086
tlength: equ 80h
cmdtail: equ 81h
putch: equ 2
puts: equ 9
getdate: equ 2Ah
org 100h
section .text
;; Check if a date was given
mov bl,[tlength] ; Length of command line
and bl,bl ; Is it zero?
jz gettoday ; Then get today's date
;; Parse the date given on the command line
cmp bl,10+1 ; MM/DD/YYYY is ten characters long
jne printusage ; If it doesn't match, print usage.
xor bh,bh
add bx,cmdtail
mov byte [bx],0 ; Zero terminate the date
mov si,cmdtail+1 ; Get month,
call atoi
mov dh,al ; store in DH,
inc si ; get day,
call atoi
mov dl,al ; store in DL,
inc si ; get year,
call atoi
mov cx,ax ; and store in CX.
jmp convertdate
;; Ask MS-DOS for the date
gettoday: mov ah,puts ; Prefix output with 'Today is '
mov dx,todayis
int 21h
mov ah,getdate ; And get the current date.
int 21h
;; Convert the date to the Discordian calendar
;; (DL=day, DH=month, CX=year)
convertdate: add cx,1166 ; Erisian year is 1166 years onwards.
cmp dx,21dh ; Is it St. Tib's Day?
jne notibs
mov dx,tibsday ; If yes, print "St. Tib's Day"
mov ah,puts
int 21h
;; Print "in the YOLD NNNN" and then end.
intheyold: mov dx,yold ; In the YOLD
mov ah,puts
int 21h
mov ax,cx ; print the year
call printn
ret ; If Tibs, this ends the program.
;; It isn't St. Tib's Day.
notibs: cmp dh,1 ; Month < 1 = error
jb printinval
cmp dl,1 ; Day < 1 = error
jb printinval
cmp dh,12 ; Month > 12 = error
ja printinval
mov bx,monthlengths-1
xor ah,ah ; Day higher than it should be
mov al,dh ; (according to month table)
add bx,ax ; = error
cmp dl,[bx]
ja printinval
mov bx,monthdays-2 ; Calculate day of year
mov al,dh ; Cumulative months
sal al,1 ; Multiply by 2 (2 bits per entry)
add bx,ax
mov ax,[bx] ; Days since start of month
xor dh,dh
add dx,ax ; Add day of month
dec dx ; Start at 0 (For array lookup)
mov ax,dx ; Get weekday
mov bl,5 ; Divide by 5
div bl ; AH = weekday (modulo)
mov bl,ah
mov di,weekdays
call strselect ; Print the weekday
mov bx,dx ; Keep day of year in bx for now
mov dx,commaday ; ... ', day '
call printstr
mov dl,73 ; Each season is 73 days long
mov ax,bx ; Divide day of year by 73
div dl ; DH=AH=day of season (modulo)
mov dx,ax ; DL=AL=season number
xor ah,ah ; Print day of season
mov al,dh
inc al ; One more (days do start at 1)
call printn
mov bx,dx ; Store day and season in bx
mov dx,of ; Print ... ' of '
call printstr
mov dx,bx ; Day and season in dx again
mov di,seasons ; Print season
call strselect ; BL is still season number
mov bx,dx ; Day and season in BX again.
call intheyold ; Print the year
cmp bh,5-1 ; Something to celebrate?
je party ; (Day 5 or 50?
cmp bh,50-1
je party
ret ; If not, stop.
party: mov al,bh ; Day in AL.
mov bx,holydays5 ; Day 5 holydays.
mov cx,xday
cmp al,50-1 ; Unless it's 50
jne holyday
mov bx,holydays50 ; Then we need day 50 holydays.
mov cx,xflux
holyday: mov dx,celebrate ; Print ... ', celebrate: '
call printstr
mov dx,bx
call printstr
mov dx,cx
jmp printstr
;; Print "invalid date".
printinval: mov dx,inval
jmp printstr
;; Print usage.
printusage: mov dx,usage
;; Print DX.
printstr: mov ah,puts
int 21h
ret
;; Subroutine: print the BL'th string from DI
strselect: inc bl ; Counter the 'dec bl' later
mov al,'$' ; String end
push cx ; Keep registers
push dx
.search dec bl ; Are we there yet?
jz .found
mov cx,-1
repne scasb ; Scan to end of string
jmp .search
.found mov dx,di ; Found the string, print it
mov ah,puts
int 21h
pop dx ; Restore registers
pop cx
ret
;; Subroutine: print number in AX.
printn: push cx ; Don't trample registers
push dx
mov si,numend ; End of number string.
mov cx,10 ; Divisor, ten.
.loop xor dx,dx ; Zero DX.
dec si ; Back up one digit.
div cx ; Divide AX by ten.
add dl,'0' ; Remainder is now in DX; make ASCII
mov [si],dl ; and store.
and ax,ax ; Quotient is in AX, check if zero
jnz .loop ; loop for next digit if there is one.
mov dx,si ; Print SI - move it to DX,
mov ah,puts ; and then call the DOS print function
int 21h
pop dx ; Restore the registers
pop cx
ret
;; Subroutine: parse number at [SI], store in AX.
atoi: push bx ; Don't trample registers
push cx
push dx
xor ax,ax ; Zero AX.
xor bh,bh ; BH as well.
mov cx,10 ; Multiplier, ten.
.loop mov bl,[si] ; Current number.
sub bl,'0' ; Subtract '0'.
jc .done ; If <0, then done.
cmp bl,9 ; If it's higher than 9,
jnbe .done ; also done.
mul cx ; Multiply accumulator by 10
add ax,bx ; Add the digit in.
inc si ; Next digit
jmp .loop
.done pop dx ; Restore registers
pop cx
pop bx
ret
section .data
;; Accumulated days at start of Gregorian months
monthdays: dw 0,31,59,90,120,151,181,212,243,273,304,334
;; Days per month
monthlengths: db 31,28,31,30,31,30,31,31,30,31,30,31
;; Strings
inval: db 'Invalid date.$'
usage: db `DDATE [MM/DD/YYYY]\r\n`
db `\r\n\tPrint today's date or the given date in the`
db ` Discordian calendar.$`
number: db '00000'
numend: db '$'
todayis: db 'Today is $'
weekdays: db 'Sweetmorn$Boomtime$Pungenday$Prickle-Prickle$'
db 'Setting Orange$'
commaday: db ', day $'
of: db ' of $'
seasons: db 'Chaos$Discord$Confusion$Bureaucracy$The Aftermath$'
celebrate: db ': celebrate $'
holydays5: db 'Mung$Mojo$Sya$Zara$Mala$'
xday: db 'day!$'
holydays50: db 'Chao$Disco$Confu$Bure$Af$'
xflux: db 'flux!$'
tibsday: db "Saint Tib's Day$"
yold: db ' in the YOLD $'</syntaxhighlight>
{{out}}
<pre>C:\>ddate
Today is Pungenday, day 50 of Discord in the YOLD 3186: celebrate Chaoflux!
C:\>ddate 09/26/1995
Prickle-Pricke, day 50 of Bureaucracy in the YOLD 3161: celebrate Chaoflux!
C:\>ddate 02/29/1996
Saint Tib's Day in the YOLD 3162
C:\>ddate 07/22/2011
Pungenday, day 57 of Confusion in the YOLD 3177
C:\>ddate 01/05/2005
Setting Orange, day 5 of Chaos in the YOLD 3171: celebrate Mungday!
</pre>
=={{header|Action!}}==
{{Trans|MAD}}...via PL/M
<syntaxhighlight lang="action!">
;;; Discordian date calculation - translation of MAD (via PL/M)
;;; returns the next number from line, the terminator is ignored
;;; pos holds the position in line and is updated to the
;;; position of the character following the trailing
;;; delimiter - if there is one
;;; pos should be set to 1 on rhe first call
INT FUNC getNumber( CHAR ARRAY line, CARD POINTER pos )
CARD value, linePos
linePos = pos^
value = 0
; skip spaces
WHILE linePos <= line(0) AND line(linePos) = ' DO linePos ==+ 1 OD
; get the number
WHILE linePos <= line(0) AND line(linePos) >= '0 AND line(linePos) <= '9
DO
value ==* 10
value ==+ (line(linePos) - '0)
linePos ==+ 1
OD
pos^ = linePos + 1
RETURN(value)
;;; get a Gregorian date and output it as a Discordian date
PROC Main()
DEFINE STRING_POINTER = "CARD"
CARD gMonth, gDay, gYear, gPos
CARD yrDay, season, day, wkDay
CHAR ARRAY gLine(256)
STRING_POINTER ARRAY holy5(5), holy50(5), disday(5), disssn(5)
INT ARRAY mlengt(13) = [ 0 0 31 59 90 120
151 181 212 243 273 304 334
]
holy5 (0) = "MUNG" holy5 (1) = "MOJO" holy5 (2) = "SYA"
holy5 (3) = "ZARA" holy5 (4) = "MALA"
holy50(0) = "CHAO" holy50(1) = "DISCO" holy50(2) = "CONFU"
holy50(3) = "BURE" holy50(4) = "AF"
disday(0) = "SWEETMORN" disday(1) = "BOOMTIME"
disday(2) = "PUNGENDAY" disday(3) = "PRICKLE-PRICKLE"
disday(4) = "SETTING ORANGE"
disssn(0) = "CHAOS" disssn(1) = "DISCORD" disssn(2) = "CONFUSION"
disssn(3) = "BUREAUCRACY" disssn(4) = "THE AFTERMATH"
; get the Gregorian date from the keyboard, NB: no validation
Print("Gregorian date (MM/DD/YYYY)> ")
InputS(gLine)
gPos = 1
gMonth = getNumber(gLine, @gPos)
gDay = getNumber(gLine, @gPos)
gYear = getNumber(gLine, @gPos)
; convert to Discordian
IF gMonth = 2 AND gDay = 29 THEN
Print("SAINT TIB'S DAY IN THE Y.O.L.D. ")PrintC(gYear+1166)
ELSE
yrDay = mlengt(gMonth)+gDay
season = yrDay/73
day = yrDay-season*73
wkDay = (yrDay-1) MOD 5
Print(disday(wkDay) )Print(", DAY ")PrintC(day)Print(" OF ")
Print(disssn(season))Print(" IN THE Y.O.L.D ")PrintC(gYear+1166)
IF day = 5 THEN
PutE()
Print("CELEBRATE ")Print(holy5(season))Print("DAY")
ELSEIF day = 50 THEN
PutE()
Print("CELEBRATE ")Print(holy50(season))Print("FLUX")
FI
FI
PutE()
RETURN
</syntaxhighlight>
{{out}}
<pre>
Gregorian date (MM/DD/YYYY)> 4/1/2023
SWEETMORN, DAY 18 OF DISCORD IN THE Y.O.L.D 3189
</pre>
=={{header|Ada}}==
discordian.adb:
<
with Ada.Text_IO;
with Ada.Integer_Text_IO;
with Ada.Strings.Unbounded;
with Ada.Strings.Unbounded.Text_IO;
with Ada.Command_Line;
procedure Discordian is
use Ada.Calendar;
use Ada.Strings.Unbounded;
use Ada.Command_Line;
package UStr_IO renames Ada.Strings.Unbounded.Text_IO;
subtype Year_Number is Integer range 3067 .. 3565;
type Seasons is (Chaos, Discord, Confusion, Bureaucracy, The_Aftermath);
type Days_Of_Week is (Sweetmorn, Boomtime, Pungenday,
Prickle_Prickle, Setting_Orange);
subtype Day_Number is Integer range 1 .. 73;
type Discordian_Date is record
Year : Year_Number;
Season : Seasons;
Day : Day_Number;
Week_Day : Days_Of_Week;
Is_Tibs_Day : Boolean := False;
end record;
function Week_Day_To_Str(Day : Days_Of_Week) return Unbounded_String is
s : Unbounded_String;
begin
case Day is
when Sweetmorn => s := To_Unbounded_String("Sweetmorn");
when Boomtime => s := To_Unbounded_String("Boomtime");
when Pungenday => s := To_Unbounded_String("Pungenday");
when Prickle_Prickle => s := To_Unbounded_String("Prickle-Prickle");
when Setting_Orange => s := To_Unbounded_String("Setting Orange");
end case;
return s;
end Week_Day_To_Str;
function Holiday(Season: Seasons) return Unbounded_String is
s : Unbounded_String;
begin
case Season is
when Chaos => s := To_Unbounded_String("Chaoflux");
when Discord => s := To_Unbounded_String("Discoflux");
when Confusion => s := To_Unbounded_String("Confuflux");
when Bureaucracy => s := To_Unbounded_String("Bureflux");
when The_Aftermath => s := To_Unbounded_String("Afflux");
end case;
return s;
end Holiday;
function Apostle(Season: Seasons) return Unbounded_String is
s : Unbounded_String;
begin
case Season is
when Chaos => s := To_Unbounded_String("Mungday");
when Discord => s := To_Unbounded_String("Mojoday");
when Confusion => s := To_Unbounded_String("Syaday");
when Bureaucracy => s := To_Unbounded_String("Zaraday");
when The_Aftermath => s := To_Unbounded_String("Maladay");
end case;
return s;
end Apostle;
function Season_To_Str(Season: Seasons) return Unbounded_String is
s : Unbounded_String;
begin
case Season is
when Chaos => s := To_Unbounded_String("Chaos");
when Discord => s := To_Unbounded_String("Discord");
when Confusion => s := To_Unbounded_String("Confusion");
when Bureaucracy => s := To_Unbounded_String("Bureaucracy");
when The_Aftermath => s := To_Unbounded_String("The Aftermath");
end case;
return s;
end Season_To_Str;
procedure Convert (From : Time; To : out Discordian_Date) is
Line 26 ⟶ 649:
First_Day : Time;
Number_Days : Day_Count;
Leap_Year : boolean;
begin
First_Day := Time_Of (Year => Year (From), Month => 1, Day => 1);
Number_Days := From - First_Day;
To.Year := Year (Date => From) + 1166;
To.Is_Tibs_Day := False;
if Year (Date => From) mod 4 = 0 then
if Year (Date => From) mod 100 = 0 then
if Year (Date => From) mod 400 = 0 then
Leap_Year := True;
end if;
else
Leap_Year := True;
end if;
end if;
if Leap_Year then
if Number_Days > 59 then
Number_Days := Number_Days - 1;
Line 46 ⟶ 680:
when 3 => To.Season := Bureaucracy;
when 4 => To.Season := The_Aftermath;
when others => raise Constraint_Error;
end case;
case Number_Days mod 5 is
when 0 => To.Week_Day := Sweetmorn;
when 1 => To.Week_Day := Boomtime;
when 2 => To.Week_Day := Pungenday;
when 3 => To.Week_Day := Prickle_Prickle;
when 4 => To.Week_Day := Setting_Orange;
when others => raise Constraint_Error;
end case;
end Convert;
procedure Put (Item : Discordian_Date) is
begin
if Item.Is_Tibs_Day then
Ada.Text_IO.Put ("
else
Ada.Text_IO.Put (", day" & Integer'Image (Item.Day));
Ada.Text_IO.Put (" of ");
UStr_IO.Put (Season_To_Str (Item.Season));
if Item.Day = 5 then
Ada.Text_IO.Put (", ");
UStr_IO.Put (Apostle(Item.Season));
elsif Item.Day = 50 then
Ada.Text_IO.Put (", ");
UStr_IO.Put (Holiday(Item.Season));
end if;
end if;
Ada.Text_IO.Put (" in the YOLD" & Integer'Image (Item.Year));
Ada.Text_IO.New_Line;
end Put;
Test_Day : Time;
Test_DDay : Discordian_Date;
Year : Integer;
Month : Integer;
Day : Integer;
YYYYMMDD : Integer;
begin
if Argument_Count = 0 then
Test_Day := Clock;
for Arg in 1..Argument_Count loop
if Argument(Arg)'Length < 8 then
Ada.Text_IO.Put("ERROR: Invalid Argument : '" & Argument(Arg) & "'");
Ada.Text_IO.Put("Input format YYYYMMDD");
raise Constraint_Error;
end if;
begin
YYYYMMDD := Integer'Value(Argument(Arg));
when Constraint_Error =>
Ada.Text_IO.Put("ERROR: Invalid Argument : '" & Argument(Arg) & "'");
end;
Day := YYYYMMDD mod 100;
if Day < Day_Number'First or Day > Day_Number'Last then
Ada.Text_IO.Put("ERROR: Invalid Day:" & Integer'Image(Day));
raise Constraint_Error;
end if;
Month := ((YYYYMMDD - Day) / 100) mod 100;
if Month < Month_Number'First or Month > Month_Number'Last then
Ada.Text_IO.Put("ERROR: Invalid Month:" & Integer'Image(Month));
raise Constraint_Error;
end if;
Year := ((YYYYMMDD - Day - Month * 100) / 10000);
if Year < 1901 or Year > 2399 then
Ada.Text_IO.Put("ERROR: Invalid Year:" & Integer'Image(Year));
raise Constraint_Error;
end if;
Test_Day := Time_Of (Year => Year, Month => Month, Day => Day);
Convert (From => Test_Day, To => Test_DDay);
Put (Test_DDay);
end loop;
end Discordian;
</syntaxhighlight>
{{Out}}
<pre>$ ./discordian 21001231 20120228 20120229 20120301 20100722 20120902 20121231
Setting Orange, day 73 of The Aftermath in the YOLD 3266
Prickle-Prickle, day 59 of Chaos in the YOLD 3178
St. Tib's Day in the YOLD 3178
Setting Orange, day 60 of Chaos in the YOLD 3178
Pungenday, day 57 of Confusion in the YOLD 3176
Setting Orange, day 26 of Bureaucracy in the YOLD 3178
Setting Orange, day 73 of The Aftermath in the YOLD 3178</pre>
=={{header|ALGOL 68}}==
{{Trans|ALGOL W}} which was itself, {{Trans|MAD}}
Algol 68 has variable length strings which simplifies this a lot relative to the Algol W version.
<syntaxhighlight lang="algol68">BEGIN # DISCORDIAN DATE CALCULATION - TRANSLATION OF MAD VIA ALGOL W #
INT greg, gmonth, gday, gyear;
[]STRING holys = []STRING( "MUNG", "MOJO", "SYA", "ZARA", "MALA" )[ AT 0 ];
[]STRING holys0 = []STRING( "CHAO", "DISCO", "CONFU", "BURE", "AF" )[ AT 0 ];
[]STRING disday = []STRING( "SWEETMORN", "BOOMTIME", "PUNGENday", "PRICKLE-PRICKLE", "SETTING ORANGE" )[ AT 0 ];
[]STRING disssn = []STRING( "CHAOS", "DISCORD", "CONFUSION", "BUREAUCRACY", "THE AFTERMATH" )[ AT 0 ];
[]INT mlengt = []INT( 0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 )[ AT 0 ];
CHAR slash1, slash2;
# input date should contain MM/DD/YYYY in the gregorian calendar #
read( ( gmonth, slash1, gday, slash2, gyear ) );
IF slash1 /= "/" OR slash2 /= "/" THEN print( ( "Invalid date format", newline ) ); stop FI;
IF gmonth = 2 AND gday = 29
THEN print( ( "SAINT TIB'S DAY IN THE Y.O.L.D. ", whole( gyear + 1166, -4 ), newline ) )
ELSE
INT yrday := mlengt[ gmonth ] + gday;
INT season := yrday OVER 73;
INT day := yrday - ( season * 73 );
INT wkday := ( yrday - 1 ) MOD 5;
print( ( disday[ wkday ], ", DAY ", whole( day, -2 ), " OF ", disssn[ season ]
, " IN THE Y.O.L.D ", whole( gyear + 1166, 0 ), newline
)
);
IF day = 5 THEN print( ( "CELEBRATE ", holys[ season ], "DAY" ) )
ELIF day = 50 THEN print( ( "CELEBRATE ", holys0[ season ], "FLUX" ) )
FI
FI
END</syntaxhighlight>
{{out}}
<pre>
11/04/1167
PUNGENday, day 16 OF THE AFTERMATH IN THE Y.O.L.D 2333
08/15/2017
BOOMTIME, DAY 8 OF BUREAUCRACY IN THE Y.O.L.D 3183
12/06/2020
SETTING ORANGE, DAY 48 OF THE AFTERMATH IN THE Y.O.L.D 3186
07/12/1969
PUNGENday, DAY 47 OF CONFUSION IN THE Y.O.L.D 3135
07/05/2005
SWEETMORN, DAY 40 OF CONFUSION IN THE Y.O.L.D 3171
09/26/1995
PRICKLE-PRICKLE, DAY 50 OF BUREAUCRACY IN THE Y.O.L.D 3161
CELEBRATE BUREFLUX
11/30/2021
PRICKLE-PRICKLE, DAY 42 OF THE AFTERMATH IN THE Y.O.L.D 3187
</pre>
=={{header|ALGOL W}}==
{{Trans|MAD}}
Algol W doesn't have the array initialisation equivalent of MAD's VECTOR VALUES and also does not allow implicit declarations.
Algol W does not have I/O formsts or variable length strings in output, which makes this version somewhat longer.
<syntaxhighlight lang="algolw">BEGIN % DISCORDIAN DATE CALCULATION - TRANSLATION OF MAD %
INTEGER GREG, GMONTH, GDAY, GYEAR;
STRING(16) ARRAY HOLY5 ( 0 :: 4 );
STRING(16) ARRAY HOLY50 ( 0 :: 4 );
STRING(16) ARRAY DISDAY ( 0 :: 4 );
STRING(16) ARRAY DISSSN ( 0 :: 4 );
INTEGER ARRAY MLENGT ( 0 :: 12 );
INTEGER APOS;
STRING(1) SLASH1, SLASH2;
% WRITES A "$" TERMINATED STRING %
PROCEDURE WRITEONTEXT( STRING(16) VALUE TEXT ) ;
BEGIN
INTEGER TPOS;
TPOS := 0;
WHILE TPOS < 16 DO BEGIN
IF TEXT( TPOS // 1 ) = "$"
THEN TPOS := 32
ELSE WRITEON( TEXT( TPOS // 1 ) );
;
TPOS := TPOS + 1
END WHILE_TPOS_LT_16
END WRITEONTEXT;
APOS := 0;
FOR M := 0,0,31,59,90,120,151,181,212,243,273,304,334 DO BEGIN MLENGT(APOS) := M; APOS := APOS + 1 END;
HOLY5 (0) := "MUNG$";HOLY5 (1) := "MOJO$"; HOLY5 (2) := "SYA$"; HOLY5 (3) := "ZARA$"; HOLY5 (4) := "MALA$";
HOLY50(0) := "CHAO$";HOLY50(1) := "DISCO$";HOLY50(2) := "CONFU$";HOLY50(3) := "BURE$"; HOLY50(4) := "AF$";
DISDAY(0) := "SWEETMORN$"; DISDAY(1) := "BOOMTIME$"; DISDAY(2) := "PUNGENDAY$";
DISDAY(3) := "PRICKLE-PRICKLE$"; DISDAY(4) := "SETTING ORANGE$";
DISSSN(0) := "CHAOS$"; DISSSN(1) := "DISCORD$"; DISSSN(2) := "CONFUSION$";
DISSSN(3) := "BUREAUCRACY$"; DISSSN(4) := "THE AFTERMATH$";
% INPUT DATE SHOULD CONTAIN MM/DD/YYYY IN GREGORIAN CALENDAR %
READ( GMONTH, SLASH1, GDAY, SLASH2, GYEAR );
IF GMONTH = 2 AND GDAY = 29
THEN WRITE( I_W := 4, S_W := 0, "SAINT TIB'S DAY IN THE Y.O.L.D. ", GYEAR + 1166 )
ELSE BEGIN
INTEGER YRDAY, SEASON, DAY, WKDAY;
YRDAY := MLENGT(GMONTH)+GDAY;
SEASON := YRDAY DIV 73;
DAY := YRDAY-SEASON*73;
WKDAY := (YRDAY-1) REM 5;
WRITEONTEXT( DISDAY(WKDAY) );
WRITEON( S_W := 0, ", DAY ", I_W := 2, DAY, " OF " );
WRITEONTEXT( DISSSN(SEASON) );
WRITEON( S_W := 0, " IN THE Y.O.L.D ", I_W := 4, GYEAR + 1166 );
IF DAY = 5 THEN BEGIN
WRITE( "CELEBRATE " );WRITEONTEXT( HOLY5(SEASON) ); WRITEON( "DAY" )
END
ELSE IF DAY = 50 THEN BEGIN
WRITE( "CELEBRATE " );WRITEONTEXT( HOLY50(SEASON) ); WRITEON( "FLUX" )
END IF_FAY_EQ_5__DAY_EQ_50
END
END.</syntaxhighlight>
{{out}}
<pre>
08/15/2017
BOOMTIME, DAY 8 OF BUREAUCRACY IN THE Y.O.L.D 3183
12/06/2020
SETTING ORANGE, DAY 48 OF THE AFTERMATH IN THE Y.O.L.D 3186
07/12/1969
PUNGENDAY, DAY 47 OF CONFUSION IN THE Y.O.L.D 3135
01/05/2005
SETTING ORANGE, DAY 5 OF CHAOS IN THE Y.O.L.D 3171
CELEBRATE MUNGDAY
09/26/1995
PRICKLE-PRICKLE, DAY 50 OF BUREAUCRACY IN THE Y.O.L.D 3161
CELEBRATE BUREFLUX
</pre>
=={{header|AppleScript}}==
<syntaxhighlight lang="applescript">on gregorianToDiscordian(inputDate) -- Input: AppleScript date object.
(*
Discordian years are aligned with, and the same length as, Gregorian years.
Each has 73 5-day weeks and 5 73-day seasons. (73 * 5 = 365.)
The first day of a Discordian year is also that of its first week and first season.
In leap years, an extra day called "St. Tib's Day", is inserted between days 59 and 60.
It's considered to be outside the calendar, so the day after it is Setting Orange, Chaos 60,
not Sweetmorn, Chaos 61. Year 1 YOLD is 1166 BC, but this handler takes an AS date object
as its input and is only good for AD Gregorian dates. Since the Discordian calendar's an
American invention, the output here's in the US style: "Weekday, Season day, year".
*)
-- Calculate the input date's day-of-year number.
copy inputDate to startOfYear
tell startOfYear to set {its day, its month} to {1, January}
set dayOfYear to (inputDate - startOfYear) div days + 1
-- If it's a leap year, special-case St. Tib's Day, or adjust the day-of-year number if the day comes after that.
set y to inputDate's year
if ((y mod 4 is 0) and ((y mod 100 > 0) or (y mod 400 is 0))) then
if (dayOfYear is 60) then
set dayOfYear to "St. Tib's Day"
else if (dayOfYear > 60) then
set dayOfYear to dayOfYear - 1
end if
end if
-- Start the output text with either "St. Tib's Day" or the weekday, season, and day-of-season number.
if (dayOfYear is "St. Tib's Day") then
set outputText to dayOfYear
else
tell dayOfYear - 1
set dayOfWeek to it mod 5 + 1
set seasonNumber to it div 73 + 1
set dayOfSeason to it mod 73 + 1
end tell
set theWeekdays to {"Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"}
set theSeasons to {"Chaos ", "Discord ", "Confusion ", "Bureaucracy ", "The Aftermath "}
set outputText to (item dayOfWeek of theWeekdays) & ", " & (item seasonNumber of theSeasons) & dayOfSeason
end if
-- Append the Discordian year number and return the result.
return outputText & ", " & (y + 1166)
end gregorianToDiscordian
set ASDate to (current date)
set gregorianDate to ASDate's date string
set discordianDate to gregorianToDiscordian(ASDate)
return {Gregorian:gregorianDate, Discordian:discordianDate}</syntaxhighlight>
{{output}}
<syntaxhighlight lang="applescript">{Gregorian:"Saturday 5 December 2020", Discordian:"Prickle-Prickle, The Aftermath 47, 3186"}</syntaxhighlight>
=={{header|AWK}}==
<syntaxhighlight lang="awk">
# DDATE.AWK - Gregorian to Discordian date contributed by Dan Nielsen
# syntax: GAWK -f DDATE.AWK [YYYYMMDD | YYYY-MM-DD | MM-DD-YYYY | DDMMMYYYY | YYYY] ...
Line 184 ⟶ 1,060:
}
}
function dos_date( arr,cmd,d,x) { # under Microsoft Windows
# XP - The current date is: MM/DD/YYYY
# 8 - The current date is: DOW MM/DD/YYYY
cmd = "DATE <NUL"
cmd | getline x
close(cmd) # close pipe
d = arr[split(x,arr," ")]
return sprintf("%04d%02d%02d",substr(d,7,4),substr(d,1,2),substr(d,4,2))
}
function error(x) {
Line 194 ⟶ 1,073:
errors++
}
</syntaxhighlight>
{{Out}}
<pre>
Line 209 ⟶ 1,088:
{{trans|PowerBASIC}}
<
DECLARE FUNCTION julian(AS DOUBLE) AS INTEGER
Line 259 ⟶ 1,138:
NEXT
FUNCTION = tmp + DAY(d)
END FUNCTION</
{{out}}
<pre>"Discordian date.exe" 19-10-2015
Boomtime, Bureaucracy 73, 3181 YOLD</pre>
=={{header|Batch File}}==
{{works with|Windows XP Service Pack 3}}
<syntaxhighlight lang="dos">@echo off
goto Parse
Discordian Date Converter:
Usage:
ddate
ddate /v
ddate /d isoDate
ddate /v /d isoDate
:Parse
shift
if "%0"=="" goto Prologue
if "%0"=="/v" set Verbose=1
if "%0"=="/d" set dateToTest=%1
if "%0"=="/d" shift
goto Parse
:Prologue
if "%dateToTest%"=="" set dateToTest=%date%
for %%a in (GYear GMonth GDay GMonthName GWeekday GDayThisYear) do set %%a=fnord
for %%a in (DYear DMonth DDay DMonthName DWeekday) do set %%a=MUNG
goto Start
:Start
for /f "tokens=1,2,3 delims=/:;-. " %%a in ('echo %dateToTest%') do (
set GYear=%%a
set GMonth=%%b
set GDay=%%c
)
goto GMonthName
:GMonthName
if %GMonth% EQU 1 set GMonthName=January
if %GMonth% EQU 2 set GMonthName=February
if %GMonth% EQU 3 set GMonthName=March
if %GMonth% EQU 4 set GMonthName=April
if %GMonth% EQU 5 set GMonthName=May
if %GMonth% EQU 6 set GMonthName=June
if %GMonth% EQU 7 set GMonthName=July
if %GMonth% EQU 8 set GMonthName=August
if %GMonth% EQU 9 set GMonthName=September
if %GMonth% EQU 10 set GMonthName=October
if %GMonth% EQU 11 set GMonthName=November
if %GMonth% EQU 12 set GMonthName=December
goto GLeap
:GLeap
set /a CommonYear=GYear %% 4
set /a CommonCent=GYear %% 100
set /a CommonQuad=GYear %% 400
set GLeap=0
if %CommonYear% EQU 0 set GLeap=1
if %CommonCent% EQU 0 set GLeap=0
if %CommonQuad% EQU 0 set GLeap=1
goto GDayThisYear
:GDayThisYear
set GDayThisYear=%GDay%
if %GMonth% GTR 11 set /a GDayThisYear=%GDayThisYear%+30
if %GMonth% GTR 10 set /a GDayThisYear=%GDayThisYear%+31
if %GMonth% GTR 9 set /a GDayThisYear=%GDayThisYear%+30
if %GMonth% GTR 8 set /a GDayThisYear=%GDayThisYear%+31
if %GMonth% GTR 7 set /a GDayThisYear=%GDayThisYear%+31
if %GMonth% GTR 6 set /a GDayThisYear=%GDayThisYear%+30
if %GMonth% GTR 5 set /a GDayThisYear=%GDayThisYear%+31
if %GMonth% GTR 4 set /a GDayThisYear=%GDayThisYear%+30
if %GMonth% GTR 3 set /a GDayThisYear=%GDayThisYear%+31
if %GMonth% GTR 2 if %GLeap% EQU 1 set /a GDayThisYear=%GDayThisYear%+29
if %GMonth% GTR 2 if %GLeap% EQU 0 set /a GDayThisYear=%GDayThisYear%+28
if %GMonth% GTR 1 set /a GDayThisYear=%GDayThisYear%+31
goto DYear
:DYear
set /a DYear=GYear+1166
goto DMonth
:DMonth
set DMonth=1
set DDay=%GDayThisYear%
if %DDay% GTR 73 (
set /a DDay=%DDay%-73
set /a DMonth=%DMonth%+1
)
if %DDay% GTR 73 (
set /a DDay=%DDay%-73
set /a DMonth=%DMonth%+1
)
if %DDay% GTR 73 (
set /a DDay=%DDay%-73
set /a DMonth=%DMonth%+1
)
if %DDay% GTR 73 (
set /a DDay=%DDay%-73
set /a DMonth=%DMonth%+1
)
goto DDay
:DDay
if %GLeap% EQU 1 (
if %GDayThisYear% GEQ 61 (
set /a DDay=%DDay%-1
)
)
if %DDay% EQU 0 (
set /a DDay=73
set /a DMonth=%DMonth%-1
)
goto DMonthName
:DMonthName
if %DMonth% EQU 1 set DMonthName=Chaos
if %DMonth% EQU 2 set DMonthName=Discord
if %DMonth% EQU 3 set DMonthName=Confusion
if %DMonth% EQU 4 set DMonthName=Bureaucracy
if %DMonth% EQU 5 set DMonthName=Aftermath
goto DTib
:DTib
set DTib=0
if %GDayThisYear% EQU 60 if %GLeap% EQU 1 set DTib=1
if %GLeap% EQU 1 if %GDayThisYear% GTR 60 set /a GDayThisYear=%GDayThisYear%-1
set DWeekday=%GDayThisYear%
goto DWeekday
:DWeekday
if %DWeekday% LEQ 5 goto _DWeekday
set /a DWeekday=%DWeekday%-5
goto DWeekday
:_DWeekday
if %DWeekday% EQU 1 set DWeekday=Sweetmorn
if %DWeekday% EQU 2 set DWeekday=Boomtime
if %DWeekday% EQU 3 set DWeekday=Pungenday
if %DWeekday% EQU 4 set DWeekday=Prickle-Prickle
if %DWeekday% EQU 5 set DWeekday=Setting Orange
goto GWeekday
:GWeekday
goto GEnding
:GEnding
set GEnding=th
for %%a in (1 21 31) do if %GDay% EQU %%a set GEnding=st
for %%a in (2 22) do if %GDay% EQU %%a set GEnding=nd
for %%a in (3 23) do if %GDay% EQU %%a set GEnding=rd
goto DEnding
:DEnding
set DEnding=th
for %%a in (1 21 31 41 51 61 71) do if %Dday% EQU %%a set DEnding=st
for %%a in (2 22 32 42 52 62 72) do if %Dday% EQU %%a set DEnding=nd
for %%a in (3 23 33 43 53 63 73) do if %Dday% EQU %%a set DEnding=rd
goto Display
:Display
if "%Verbose%"=="1" goto Display2
echo.
if %DTib% EQU 1 (
echo St. Tib's Day, %DYear%
) else echo %DWeekday%, %DMonthName% %DDay%%DEnding%, %DYear%
goto Epilogue
:Display2
echo.
echo Gregorian: %GMonthName% %GDay%%GEnding%, %GYear%
if %DTib% EQU 1 (
echo Discordian: St. Tib's Day, %DYear%
) else echo Discordian: %DWeekday%, %DMonthName% %DDay%%DEnding%, %DYear%
goto Epilogue
:Epilogue
set Verbose=
set dateToTest=
echo.
:End
</syntaxhighlight>
{{out}}
<pre>
H:\>ddate
Pungenday, Confusion 12th, 3182
H:\>ddate /v
Gregorian: June 07th, 2016
Discordian: Pungenday, Confusion 12th, 3182
H:\>ddate /d 2016-02-28
Prickle-Prickle, Chaos 59th, 3182
H:\>ddate /v /d 2016-02-28
Gregorian: February 28th, 2016
Discordian: Prickle-Prickle, Chaos 59th, 3182
H:\>ddate /v /d 2016-02-29
Gregorian: February 29th, 2016
Discordian: St. Tib's Day, 3182
H:\>ddate /d 2016-02-29
St. Tib's Day, 3182
H:\>
</pre>
This program assumes the date is in ISO order (yyyy-mm-dd) and has leading zeros. It also assumes the system date is similarly formatted, which is atypical on Windows machines.
Built on CMD.EXE version 5.1.2600.5512 (xpsp.080413-2111).
=={{header|BBC BASIC}}==
{{works with|BBC BASIC for Windows}}
<
PRINT "01/01/2011 -> " FNdiscordian("01/01/2011")
Line 303 ⟶ 1,398:
ENDIF
= Weekday$(day% MOD 5) + ", " + STR$(day% MOD 73 + 1) + " " + \
\ Season$(day% DIV 73) + ", YOLD " + STR$(year% + 1166)</
{{Out}}
<pre>
Line 324 ⟶ 1,419:
Reads the date to convert from stdin as three separate numeric inputs (year, month, and day).
<
v"f I".+1%,,,,"Day I":$_:#<0#!4#:p#-4#1g4-#0+#<<_v#!*!-2g40!-<
>"o",,,/:5+*66++:4>g#<:#44#:9#+*#1-#,_$$0 v_v#!< >$ 0 "yaD " v
@,+55.+*+92"j"$_,#!>#:<", in the YOLD"*84 <.>,:^ :"St. Tib's"<
$# #"#"##"#"Chaos$Discord$Confusion$Bureaucracy$The Aftermath$</
{{out}} (multiple runs)
Line 350 ⟶ 1,445:
=={{header|C}}==
For the source code of <code>ddate</code> in util-linux package, see [[http://jubal.westnet.com/hyperdiscordia/ddate.html]].
<
#include <stdio.h>
#include <time.h>
#define day_of_week( x ) ((x) == 1 ? "Sweetmorn" :\
(x) == 2 ? "Boomtime" :\
(x) == 3 ? "Pungenday" :\
(x) == 4 ? "Prickle-Prickle" :\
"Setting Orange")
#define season( x ) ((x) == 0 ? "Chaos" :\
(x) == 1 ? "Discord" :\
Line 363 ⟶ 1,463:
(x) == 3 ? "Bureaucracy" :\
"The Aftermath")
#define date( x ) ((x)%73 == 0 ? 73 : (x)%73)
#define leap_year( x ) ((x) % 400 == 0 || (((x) % 4) == 0 && (x) % 100))
char * ddate( int y, int d ){
int dyear = 1166 + y;
char * result = malloc( 100 * sizeof( char ) );
if( leap_year( y ) ){
if( d == 60 ){
Line 380 ⟶ 1,480:
}
}
sprintf( result, "%s, %s %d, YOLD %d",
day_of_week(d%5), season(((d%73)==0?d-1:d)/73 ), date( d ), dyear );
return result;
}
int day_of_year( int y, int m, int d ){
int month_lengths[ 12 ] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
for( ; m > 1; m -- ){
d += month_lengths[ m - 2 ];
Line 398 ⟶ 1,499:
return d;
}
int main( int argc, char * argv[] ){
time_t now;
struct tm * now_time;
int year, doy;
if( argc == 1 ){
now = time( NULL );
Line 412 ⟶ 1,513:
year = atoi( argv[ 1 ] ); doy = day_of_year( atoi( argv[ 1 ] ), atoi( argv[ 2 ] ), atoi( argv[ 3 ] ) );
}
char * result = ddate( year, doy );
puts( result );
free( result );
return 0;
}</
Demonstration:
<pre>$ ./ddate
$ ./ddate 7 1 2011
Sweetmorn, The Aftermath 40, YOLD 1173
$ ./ddate 2011 1 7
Boomtime, Chaos 7, YOLD 3177
$ ./ddate 2012 2 28
Prickle-Prickle, Chaos 59, YOLD 3178
$ ./ddate 2012 2 29
St. Tib's Day, YOLD 3178
$ ./ddate 2012 3 1
Setting Orange, Chaos 60, YOLD 3178
$ ./ddate 2010 7 22
Pungenday, Confusion 57, YOLD 3176
$ ./ddate # today is Jan 4, 2016
Prickle-Prickle, Chaos 4, YOLD 3182</pre>
=={{header|C sharp|C#}}==
<syntaxhighlight lang="csharp">using System;
public static class DiscordianDate
{
static readonly string[] seasons = { "Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath" };
static readonly string[] weekdays = { "Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange" };
static readonly string[] apostles = { "Mungday", "Mojoday", "Syaday", "Zaraday", "Maladay" };
static readonly string[] holidays = { "Chaoflux", "Discoflux", "Confuflux", "Bureflux", "Afflux" };
public static string Discordian(this DateTime date) {
string yold = $" in the YOLD {date.Year + 1166}.";
int dayOfYear = date.DayOfYear;
if (DateTime.IsLeapYear(date.Year)) {
if (dayOfYear == 60) return "St. Tib's day" + yold;
else if (dayOfYear > 60) dayOfYear--;
}
dayOfYear--;
int seasonDay = dayOfYear % 73 + 1;
int seasonNr = dayOfYear / 73;
int weekdayNr = dayOfYear % 5;
string holyday = "";
if (seasonDay == 5) holyday = $" Celebrate {apostles[seasonNr]}!";
else if (seasonDay == 50) holyday = $" Celebrate {holidays[seasonNr]}!";
return $"{weekdays[weekdayNr]}, day {seasonDay} of {seasons[seasonNr]}{yold}{holyday}";
}
public static void Main() {
foreach (var (day, month, year) in new [] {
(1, 1, 2010),
(5, 1, 2010),
(19, 2, 2011),
(28, 2, 2012),
(29, 2, 2012),
(1, 3, 2012),
(19, 3, 2013),
(3, 5, 2014),
(31, 5, 2015),
(22, 6, 2016),
(15, 7, 2016),
(12, 8, 2017),
(19, 9, 2018),
(26, 9, 2018),
(24, 10, 2019),
(8, 12, 2020),
(31, 12, 2020)
})
{
Console.WriteLine($"{day:00}-{month:00}-{year:00} = {new DateTime(year, month, day).Discordian()}");
}
}
}</syntaxhighlight>
{{out}}
<pre>
01-01-2010 = Sweetmorn, day 1 of Chaos in the YOLD 3176.
05-01-2010 = Setting Orange, day 5 of Chaos in the YOLD 3176. Celebrate Mungday!
19-02-2011 = Setting Orange, day 50 of Chaos in the YOLD 3177. Celebrate Chaoflux!
28-02-2012 = Prickle-Prickle, day 59 of Chaos in the YOLD 3178.
29-02-2012 = St. Tib's day in the YOLD 3178.
01-03-2012 = Setting Orange, day 60 of Chaos in the YOLD 3178.
19-03-2013 = Pungenday, day 5 of Discord in the YOLD 3179. Celebrate Mojoday!
03-05-2014 = Pungenday, day 50 of Discord in the YOLD 3180. Celebrate Discoflux!
31-05-2015 = Sweetmorn, day 5 of Confusion in the YOLD 3181. Celebrate Syaday!
22-06-2016 = Pungenday, day 27 of Confusion in the YOLD 3182.
15-07-2016 = Sweetmorn, day 50 of Confusion in the YOLD 3182. Celebrate Confuflux!
12-08-2017 = Prickle-Prickle, day 5 of Bureaucracy in the YOLD 3183. Celebrate Zaraday!
19-09-2018 = Boomtime, day 43 of Bureaucracy in the YOLD 3184.
26-09-2018 = Prickle-Prickle, day 50 of Bureaucracy in the YOLD 3184. Celebrate Bureflux!
24-10-2019 = Boomtime, day 5 of The Aftermath in the YOLD 3185. Celebrate Maladay!
08-12-2020 = Boomtime, day 50 of The Aftermath in the YOLD 3186. Celebrate Afflux!
31-12-2020 = Setting Orange, day 73 of The Aftermath in the YOLD 3186.</pre>
=={{header|C++}}==
<
#include <iostream>
#include <algorithm>
Line 524 ⟶ 1,704:
return 0;
}
</syntaxhighlight>
{{out}}<pre>
Enter a date (dd mm yyyy) or 0 to quit: 19 10 2015
Line 546 ⟶ 1,726:
=={{header|Clojure}}==
<
(def seasons ["Chaos" "Discord" "Confusion" "Bureaucracy" "The Aftermath"])
Line 568 ⟶ 1,748:
(let [day-of-year (dec (.getDayOfYear (tc/date-time year month day)))
dday (discordian-day day-of-year (leap-year? year))]
(format "%s, YOLD %s" dday (+ year year-offset))))</
{{out}}
Line 584 ⟶ 1,764:
"Setting Orange, The Aftermath 73, YOLD 3179"</pre>
=={{header|
<syntaxhighlight lang="clu">% This program needs to be merged with PCLU's "useful.lib",
% so it can use get_argv to read the command line.
%
% pclu -merge $CLUHOME/lib/useful.lib -compile cmdline.clu
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Represent a day in the Discordian calendar %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
eris_date = cluster is from_greg_y_m_d,
from_date,
get_year,
get_day,
get_season,
get_weekday,
get_day_name,
get_holyday,
get_format
greyface = 1166
% A Discordian day is either St. Tib's day
% or a day in a season
season_day = struct[season, day: int]
eris_day = oneof[st_tibs: null, season_day: season_day]
% A Discordian date is a day in a year
rep = struct[year: int, day: eris_day]
% Offset of each Gregorian month in a non-leap year
own month_offset: sequence[int] := sequence[int]$[
0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
]
% Length of each Gregorian month in a non-leap year
own month_length: sequence[int] := sequence[int]$[
31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
]
own week_days: sequence[string] := sequence[string]$[
"Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle",
"Setting Orange"
]
own seasons: sequence[string] := sequence[string]$[
"Chaos", "Discord", "Confusion", "Bureacuracy",
"The Aftermath"
]
own apostle_holydays: sequence[string] := sequence[string]$[
"Mungday", "Mojoday", "Syaday", "Zaraday", "Maladay"
]
own season_holydays: sequence[string] := sequence[string]$[
"Chaoflux", "Discoflux", "Confuflux", "Bureflux", "Afflux"
]
% Check if a Gregorian year is a leap year
is_leap = proc (year: int) returns (bool)
if year // 4 ~= 0 then return(false)
elseif year // 100 ~= 0 then return(true)
elseif year // 400 ~= 0 then return(false)
else return(true)
end
end is_leap
% Convert a Gregorian date to a Discordian date
from_greg_y_m_d = proc (year, month, day: int)
returns (cvt) signals (invalid)
% Make sure the month is valid
if month<1 cor month>12 then signal invalid end
% Saint Tib's Day?
if month=2 cand day=29 then
% Only valid in leap years
if ~is_leap(year) then signal invalid end
return(rep${year: year+greyface, day: eris_day$make_st_tibs(nil)})
end
% If not, make sure the day of the month is valid
if day<1 cor day>month_length[month] then signal invalid end
% The Discordian calendar doesn't consider Saint Tib's Day
% part of a season, so we can use the day number for a non-leap
% year even in a leap year
year_day: int := (day + month_offset[month]) - 1
sd: season_day := season_day${
season: year_day / 73 + 1,
day: year_day // 73 + 1
}
return(rep${year: year+greyface,
day: eris_day$make_season_day(sd)})
end from_greg_y_m_d
% Convert a CLU 'date' object to a Discordian date (ignoring the time)
from_date = proc (d: date) returns (cvt) signals (invalid)
return(down(from_greg_y_m_d(d.year, d.month, d.day)))
resignal invalid
end from_date
% Retrieve year, season, day, weekday number
get_year = proc (d: cvt) returns (int) return(d.year) end get_year
get_day = proc (d: cvt) returns (int) signals (st_tibs)
tagcase d.day
tag st_tibs: signal st_tibs
tag season_day (s: season_day): return(s.day)
end
end get_day
get_season = proc (d: cvt) returns (int) signals (st_tibs)
tagcase d.day
tag st_tibs: signal st_tibs
tag season_day (s: season_day): return(s.season)
end
end get_season
get_weekday = proc (d: cvt) returns (int) signals (st_tibs)
day: int := up(d).day resignal st_tibs
season: int := up(d).season resignal st_tibs
weekday: int := ( (season-1)*73 + (day-1) ) // 5 + 1
return( weekday )
end get_weekday
% Retrieve formatted day in year
get_day_name = proc (d: cvt) returns (string)
begin
fmt: stream := stream$create_output()
stream$puts(fmt, week_days[up(d).weekday])
stream$puts(fmt, ", day " || int$unparse(up(d).day))
stream$puts(fmt, " of " || seasons[up(d).season])
return(stream$get_contents(fmt))
end except when st_tibs:
return("St. Tib's Day")
end
end get_day_name
% Retrieve holyday name if there is one
get_holyday = proc (d: cvt) returns (string) signals (no_holyday)
begin
if up(d).day = 5 then return(apostle_holydays[up(d).season])
elseif up(d).day = 50 then return(season_holydays[up(d).season])
else signal no_holyday
end
end except when st_tibs:
signal no_holyday % St. Tib's Day is not a normal holyday
end
end get_holyday
% Retrieve long format
get_format = proc (d: cvt) returns (string)
fmt: stream := stream$create_output()
stream$puts(fmt, up(d).day_name)
stream$puts(fmt, " in the YOLD ")
stream$puts(fmt, int$unparse(up(d).year))
stream$puts(fmt, ": celebrate " || up(d).holyday) except when no_holyday: end
return(stream$get_contents(fmt))
end get_format
end eris_date
% Parse a date string (MM/DD/YYYY) and return a date object
parse_date = proc (s: string) returns (date) signals (bad_format)
begin
parts: array[int] := array[int]$[]
while true do
slash: int := string$indexc('/', s)
if slash=0 then
array[int]$addh(parts, int$parse(s))
break
else
array[int]$addh(parts, int$parse(string$substr(s, 1, slash-1)))
s := string$rest(s, slash+1)
end
end
if array[int]$size(parts) ~= 3 then signal bad_format end
return(date$create(parts[2], parts[1], parts[3], 0, 0, 0))
end resignal bad_format
end parse_date
% Read date(s) from the command line, or use the current date,
% and convert to the Discordian date
start_up = proc ()
po: stream := stream$primary_output()
args: sequence[string] := get_argv()
dates: array[date] := array[date]$[]
if sequence[string]$empty(args) then
% No argument - use today's date
stream$puts(po, "Today is ")
array[date]$addh(dates, now())
else
% There are argument(s) - parse each of them
for arg: string in sequence[string]$elements(args) do
array[date]$addh(dates, parse_date(arg))
end
end
% Convert all dates
for d: date in array[date]$elements(dates) do
stream$putl(po, eris_date$from_date(d).format)
end
end start_up</syntaxhighlight>
{{out}}
<pre>$ ./ddate
Today is Boomtime, day 45 of The Aftermath in the YOLD 3187
$ ./ddate 4/27/2020 9/26/1995 2/29/1996 7/22/2011 1/5/2005
Boomtime, day 44 of Discord in the YOLD 3186
Prickle-Prickle, day 50 of Bureacuracy in the YOLD 3161: celebrate Bureflux
St. Tib's Day in the YOLD 3162
Pungenday, day 57 of Confusion in the YOLD 3177
Setting Orange, day 5 of Chaos in the YOLD 3171: celebrate Mungday</pre>
=={{header|D}}==
<syntaxhighlight lang="d">import std.stdio, std.datetime, std.conv, std.string;
immutable seasons = ["Chaos", "Discord", "Confusion",
"Bureaucracy", "The Aftermath"],
Line 597 ⟶ 1,988:
holiday = ["Chaoflux", "Discoflux", "Confuflux",
"Bureflux", "Afflux"];
string discordianDate(in Date date) pure {
immutable dYear = text(date.year + 1166);
immutable isLeapYear = date.isLeapYear;
if (isLeapYear && date.month == 2 && date.day == 29)
return "St. Tib's Day, in the YOLD " ~ dYear;
immutable doy = (isLeapYear && date.dayOfYear >= 60) ?
date.dayOfYear - 1 :
date.dayOfYear;
immutable dsDay = (doy % 73)==0? 73:(doy % 73); // Season day.
if (dsDay == 5)
return apostle[doy / 73] ~ ", in the YOLD " ~ dYear;
if (dsDay == 50)
return holiday[doy / 73] ~ ", in the YOLD " ~ dYear;
immutable dSeas = seasons[(((doy%73)==0)?doy-1:doy) / 73];
immutable dWday = weekday[(doy - 1) % 5];
return format("%s, day %s of %s in the YOLD %s",
dWday, dsDay, dSeas, dYear);
}
unittest {
assert(Date(2010, 7, 22).discordianDate ==
Line 636 ⟶ 2,027:
"Discoflux, in the YOLD 3177");
}
void main(string args[]) {
int yyyymmdd, day, mon, year, sign;
if (args.length == 1) {
(cast(Date)Clock.currTime).discordianDate.writeln;
return;
}
foreach (i, arg; args) {
if (i > 0) {
//writef("%d: %s: ", i, arg);
yyyymmdd = to!int(arg);
if (yyyymmdd < 0) {
sign = -1;
yyyymmdd = -yyyymmdd;
}
else {
sign = 1;
}
day = yyyymmdd % 100;
if (day == 0) {
day = 1;
}
mon = ((yyyymmdd - day) / 100) % 100;
if (mon == 0) {
mon = 1;
}
year = sign * ((yyyymmdd - day - 100*mon) / 10000);
writefln("%s", Date(year, mon, day).discordianDate);
}
}
}</syntaxhighlight>
{{out}}
<pre>$ ./ddate 20100722 20120228 20120229 20120301 20100105 20110503 20151019 00000101 -11660101
Pungenday, day 57 of Confusion in the YOLD 3176
Prickle-Prickle, day 59 of Chaos in the YOLD 3178
St. Tib's Day, in the YOLD 3178
Setting Orange, day 60 of Chaos in the YOLD 3178
Mungday, in the YOLD 3176
Discoflux, in the YOLD 3177
Boomtime, day 73 of Bureaucracy in the YOLD 3181
Sweetmorn, day 1 of Chaos in the YOLD 1166
Sweetmorn, day 1 of Chaos in the YOLD 0</pre>
=={{header|Delphi}}==
{{libheader| System.SysUtils}}
{{libheader| System.DateUtils}}
{{Trans|D}} Partial translation of D.
<syntaxhighlight lang="delphi">
program Discordian_date;
{$APPTYPE CONSOLE}
uses
System.SysUtils,
System.DateUtils;
type
TDateTimeHelper = record helper for TDateTime
const
seasons: array of string = ['Chaos', 'Discord', 'Confusion', 'Bureaucracy',
'The Aftermath'];
weekday: array of string = ['Sweetmorn', 'Boomtime', 'Pungenday',
'Prickle-Prickle', 'Setting Orange'];
apostle: array of string = ['Mungday', 'Mojoday', 'Syaday', 'Zaraday', 'Maladay'];
holiday: array of string = ['Chaoflux', 'Discoflux', 'Confuflux',
'Bureflux', 'Afflux'];
function DiscordianDate(): string;
end;
{ TDateTimeHelper }
function TDateTimeHelper.DiscordianDate: string;
var
isLeapYear: boolean;
begin
isLeapYear := IsInLeapYear(self);
var dYear := (YearOf(self) + 1166).ToString;
if isLeapYear and (MonthOf(self) = 2) and (dayof(self) = 29) then
exit('St. Tib''s Day, in the YOLD ' + dYear);
var doy := DayOfTheYear(self);
if isLeapYear and (doy >= 60) then
doy := doy - 1;
var dsDay := doy mod 73;
if dsDay = 0 then
dsDay := 73;
if dsDay = 5 then
exit(apostle[doy div 73] + ', in the YOLD ' + dYear);
if dsDay = 50 then
exit(holiday[doy div 73] + ', in the YOLD ' + dYear);
var dSeas: string;
if (doy mod 73) = 0 then
dSeas := seasons[(doy - 1) div 73]
else
dSeas := seasons[doy div 73];
var dWday := weekday[(doy - 1) mod 5];
Result := format('%s, day %d of %s in the YOLD %s', [dWday, dsDay, dSeas, dYear]);
end;
procedure Test();
begin
Assert(EncodeDate(2010, 7, 22).DiscordianDate =
'Pungenday, day 57 of Confusion in the YOLD 3176');
Assert(EncodeDate(2012, 2, 28).DiscordianDate =
'Prickle-Prickle, day 59 of Chaos in the YOLD 3178');
Assert(EncodeDate(2012, 2, 29).DiscordianDate = 'St. Tib''s Day, in the YOLD 3178');
Assert(EncodeDate(2012, 3, 1).DiscordianDate =
'Setting Orange, day 60 of Chaos in the YOLD 3178');
Assert(EncodeDate(2010, 1, 5).DiscordianDate = 'Mungday, in the YOLD 3176');
Assert(EncodeDate(2011, 5, 3).DiscordianDate = 'Discoflux, in the YOLD 3177');
writeln('OK');
end;
var
dt: TDateTime;
i: Integer;
begin
if ParamCount = 0 then
begin
writeln(now.DiscordianDate);
readln;
halt;
end;
for i := 1 to ParamCount do
begin
if not TryStrToDate(ParamStr(i), dt) then
Continue;
writeln(dt.DiscordianDate);
end;
readln;
end.</syntaxhighlight>
=={{header|EasyLang}}==
<syntaxhighlight>
seasons$[] = [ "Chaos" "Discord" "Confusion" "Bureaucracy" "The Aftermath" ]
weekday$[] = [ "Sweetmorn" "Boomtime" "Pungenday" "Prickle-Prickle" "Setting Orange" ]
apostle$[] = [ "Mungday" "Mojoday" "Syaday" "Zaraday" "Maladay" ]
holiday$[] = [ "Chaoflux" "Discoflux" "Confuflux" "Bureflux" "Afflux" ]
#
func leap x .
return if x mod 400 = 0 or x mod 4 = 0 and x mod 100 <> 0
.
func day_of_year y m d .
days[] = [ 31 28 31 30 31 30 31 31 30 31 30 31 ]
repeat
m -= 1
until m = 0
d += days[m]
if m = 2 and leap y = 1
d += 1
.
.
return d
.
func$ ddate y m d .
doy = day_of_year y m d
dyear = y + 1166
if leap y = 1 and m = 2 and d = 29
return "St. Tib's Day, in the YOLD " & dyear
.
if leap y = 1 and doy >= 60
doy -= 1
.
dsday = doy mod1 73
dseason = doy div1 73
r$ = weekday$[doy mod1 5] & ", day " & dsday & " of " & seasons$[dseason]
r$ &= " in the YOLD " & dyear & "."
if dsday = 5
r$ &= " Celebrate " & apostle$[dseason] & "!"
elif dsday = 50
r$ &= " Celebrate " & holiday$[dseason] & "!"
.
return r$
.
proc show d$ . .
a[] = number strsplit d$ "-"
write d$ & " --> "
print ddate a[1] a[2] a[3]
.
show "2016-01-05"
show "2016-02-28"
show "2016-02-29"
show "2016-03-01"
show "2016-12-31"
show "2025-03-19"
show substr timestr systime 1 10
</syntaxhighlight>
=={{header|Euphoria}}==
{{trans|D}}
<
return remainder(year,4)=0 and remainder(year,100)!=0 or remainder(year,400)=0
end function
Line 703 ⟶ 2,287:
today = date()
today[YEAR] += 1900
puts(1, discordianDate(today))</
=={{header|F Sharp|F#}}==
<
let seasons = [| "Chaos"; "Discord"; "Confusion"; "Bureaucracy"; "The Aftermath" |]
Line 720 ⟶ 2,303:
else
// compensate for St. Tib's Day
let dayOfYear = (if leapYear && date.DayOfYear >= 60 then date.DayOfYear - 1 else date.DayOfYear) - 1
let season, dday = Math.DivRem(dayOfYear, 73)
sprintf "%s %i, %i YOLD" seasons.[season] (dday+1) dyear
[<EntryPoint>]
let main argv =
let p = Int32.Parse
Seq.ofArray("2012-02-28 2012-02-29 2012-03-01 2010-07-22 2015-10-19 2015-10-20".Split())
|> Seq.map(fun (s:string) ->
let d = s.Split('-')
(s, DateTime(p(d.[0]),p(d.[1]),p(d.[2]))))
|> Seq.iter(fun (s,d) -> printfn "%s is %s" s (ddate d))
0
</syntaxhighlight>
{{out}}
<pre>2012-02-28 is Chaos 59, 3178 YOLD
2012-02-29 is St. Tib's Day, 3178 YOLD
2012-03-01 is Chaos 60, 3178 YOLD
2010-07-22 is Confusion 57, 3176 YOLD
2015-10-19 is Bureaucracy 73, 3181 YOLD
2015-10-20 is The Aftermath 1, 3181 YOLD</pre>
=={{header|Fortran}}==
<syntaxhighlight lang="fortran">
program discordianDate
implicit none
! Declare variables
character(32) :: arg
character(15) :: season,day,holyday
character(80) :: Output,fmt1,fmt2,fmt3
character(2) :: dayfix,f1,f2,f3,f4
integer :: i,j,k,daysofyear,dayofweek,seasonnum,yold,dayofseason,t1,t2,t3
integer,dimension(8) :: values
integer, dimension(12) :: daysinmonth
logical :: isleapyear, isholyday, Pleapyear
! Get the current date
call date_and_time(VALUES=values)
! Set some values up to defaults
daysinmonth = (/ 31,28,31,30,31,30,31,31,30,31,30,31 /)
isleapyear = .false.
isholyday = .false.
! process any command line arguments
! using arguments dd mm yyyy
j = iargc()
do i = 1, iargc()
call getarg(i, arg) ! fetches argument as a character string
if (j==3) then
if (i==1) then
read(arg,'(i2)') values(3) ! convert to integer
endif
if (i==2) then
read(arg,'(i2)') values(2) ! convert to integer
endif
if (i==3) then
read(arg,'(i4)') values(1) ! convert to integer
endif
endif
if (j==2) then ! arguments dd mm
if (i==1) then
read(arg,'(i2)') values(3) ! convert to integer
endif
if (i==2) then
read(arg,'(i2)') values(2) ! convert to integer
endif
endif
if (j==1) then ! argument dd
read(arg,'(i2)') values(3) ! convert to integer
endif
end do
!Start the number crunching here
yold = values(1) + 1166
daysofyear = 0
if (values(2)>1) then
do i=1 , values(2)-1 , 1
daysofyear = daysofyear + daysinmonth(i)
end do
end if
daysofyear = daysofyear + values(3)
isholyday = .false.
isleapyear = Pleapyear(yold)
dayofweek = mod (daysofyear, 5)
seasonnum = ((daysofyear - 1) / 73) + 1
dayofseason = daysofyear - ((seasonnum - 1) * 73)
k = mod(dayofseason,10) ! just to get the day number postfix
select case (k)
case (1)
dayfix='st'
case (2)
dayfix='nd'
case (3)
dayfix='rd'
case default
dayfix='th'
end select
! except between 10th and 20th where we always have 'th'
if (((dayofseason > 10) .and. (dayofseason < 20)) .eqv. .true.) then
dayfix = 'th'
end if
select case (Seasonnum)
case (1)
season ='Choas'
f4 = '5'
case (2)
season ='Discord'
f4 = '7'
case (3)
season ='Confusion'
f4 = '9'
case (4)
season ='Bureaucracy'
f4 = '10'
case (5)
season ='The Aftermath'
f4 = '13'
end select
select case (dayofweek)
case (0)
day='Setting Orange'
f2 = '14'
case (1)
day ='Sweetmorn'
f2 = '9'
case (2)
day = 'Boomtime'
f2 = '8'
case (3)
day = 'Pungenday'
f2 = '9'
case (4)
day = 'Prickle-Prickle'
f2 = '15'
end select
! check for holydays
select case (dayofseason)
case (5)
isholyday = .true.
select case (seasonnum)
case (1)
holyday ='Mungday'
f1 = '7'
case (2)
holyday = 'Mojoday'
f1 = '7'
case (3)
holyday = 'Syaday'
f1 = '6'
case (4)
holyday = 'Zaraday'
f1 = '7'
case (5)
holyday = 'Maladay'
f1 = '7'
end select
Case (50)
isholyday = .true.
select case (seasonnum)
case (1)
holyday = 'Chaoflux'
f1 = '8'
case (2)
holyday = 'Discoflux'
f1 = '9'
case (3)
holyday = 'Confuflux'
f1 = '9'
case (4)
holyday = 'Bureflux'
f1 = '8'
case (5)
holyday = 'Afflux'
f1 = '6'
end select
end select
! Check if it is St. Tibbs day
if (isleapyear .eqv. .true.) then
if ((values(2) == 2) .and. (values(3) == 29)) then
isholyday = .true.
end if
end if
! Construct our format strings
f3 = "2"
if (dayofseason < 10) then
f3 = "1"
end if
fmt1 = "(a,i4)"
fmt2 = "(A,a" // f1 // ",A,A" // f2 // ",A,I" // f3 // ",A2,A,A" // f4 // ",A,I4)"
fmt3 = "(A,A" // f2 // ",A,I" // f3 //",A2,A,A" // f4 // ",A,I4)"
! print an appropriate line
if (isholyday .eqv. .true.) then
if (values(3) == 29) then
print fmt1,'Celebrate for today is St. Tibbs Day in the YOLD ',yold
else
print fmt2, 'Today is ',holyday, ' on ',day,' the ',dayofseason,dayfix,' day of ',season,' in the YOLD ',yold
end if
else ! not a holyday
print fmt3, 'Today is ',day,' the ',dayofseason,dayfix, ' day of ',season,' in the YOLD ',yold
end if
end program discordianDate
! Function to check to see if this is a leap year returns true or false!
function Pleapyear(dloy) result(leaper)
implicit none
integer, intent(in) :: dloy
logical :: leaper
leaper = .false.
if (mod((dloy-1166),4) == 0) then
leaper = .true.
end if
if (mod((dloy-1166),100) == 0) then
leaper = .false.
if (mod((dloy-1166),400)==0) then
leaper = .true.
end if
end if
end function Pleapyear
</syntaxhighlight>
<pre>
compiled as ddate.
useage ./ddate
./ddate dd mm yyyy
</pre>
{{out}}
<pre>
./ddate
Today is Pungenday the 56th day of The Aftermath in the YOLD 3184
./ddate 29 02 2020
Celebrate for today is St. Tibbs Day in the YOLD 3186
</pre>
=={{header|FreeBASIC}}==
{{trans|BASIC}}
<syntaxhighlight lang="freebasic">#Include "datetime.bi"
meses:
Data "Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"
dias_laborales:
Data "Setting Orange", "Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle"
dias_previos_al_1er_mes:
' ene feb mar abr may jun jul ago sep oct nov dic
Data 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
Function cJuliano(d As Double) As Integer
'no tiene en cuenta los años bisiestos (no es necesario para ddate)
Dim tmp As Integer, i As Integer
Restore dias_previos_al_1er_mes
For i = 1 To Month(d)
Read tmp
Next i
Function = tmp + Day(d)
End Function
Sub cDiscordiano(Fecha As String)
Dim As Integer dyear, dday, j, jday
Dim As Double tempfecha = Datevalue(Fecha)
Dim As String ddate, dseason, dweekday
dyear = Year(tempfecha) + 1166
If (2 = Month(tempfecha)) And (29 = Day(tempfecha)) Then
ddate = "Saint Tib's Day, " & Str(dyear) & " YOLD"
Else
jday = cJuliano(tempfecha)
Restore meses
For j = 1 To ((jday - 1) \ 73) + 1
Read dseason
Next j
dday = (jday Mod 73)
If 0 = dday Then dday = 73
Restore dias_laborales
For j = 1 To (jday Mod 5) + 1
Read dweekday
Next j
ddate = dweekday & ", " & dseason & " " & Trim(Str(dday)) & ", " & Trim(Str(dyear)) & " YOLD"
End If
Print Fecha & " -> " & ddate
End Sub
cDiscordiano("01/01/2020")
cDiscordiano("05/01/2020")
cDiscordiano("28/02/2020")
cDiscordiano("01/03/2020")
cDiscordiano("22/07/2020")
cDiscordiano("31/12/2020")
cDiscordiano("20/04/2022")
cDiscordiano("24/05/2020")
cDiscordiano("29/02/2020")
cDiscordiano("15/07/2019")
cDiscordiano("19/03/2025")
Sleep</syntaxhighlight>
{{out}}
<pre>
01/01/2020 -> Sweetmorn, Chaos 1, 3186 YOLD
05/01/2020 -> Setting Orange, Chaos 5, 3186 YOLD
28/02/2020 -> Prickle-Prickle, Chaos 59, 3186 YOLD
01/03/2020 -> Setting Orange, Chaos 60, 3186 YOLD
22/07/2020 -> Pungenday, Confusion 57, 3186 YOLD
31/12/2020 -> Setting Orange, The Aftermath 73, 3186 YOLD
20/04/2022 -> Setting Orange, Discord 37, 3188 YOLD
24/05/2020 -> Prickle-Prickle, Discord 71, 3186 YOLD
29/02/2020 -> Saint Tib's Day, 3186 YOLD
15/07/2019 -> Sweetmorn, Confusion 50, 3185 YOLD
19/03/2025 -> Pungenday, Discord 5, 3191 YOLD
</pre>
=={{header|Go}}==
A package modeled after the time package in the Go standard library
<
import (
Line 858 ⟶ 2,748:
}
return
} </
Example program using above package
<
import (
Line 902 ⟶ 2,792:
fmt.Fprintf(os.Stderr, "usage: %s [+format] [day month year]\n", os.Args[0])
os.Exit(1)
}</
{{Out}}
<pre>
Line 913 ⟶ 2,803:
=={{header|Haskell}}==
<syntaxhighlight lang="haskell">import Data.Time (isLeapYear)
import Data.Time.Calendar.MonthDay (monthAndDayToDayOfYear)
import Text.Printf (printf)
type Year = Integer
type Day = Int
type Month = Int
data DDate = DDate Weekday Season Day Year
| StTibsDay Year deriving (Eq, Ord)
data Season = Chaos
| Discord
| Confusion
| Bureaucracy
| TheAftermath
deriving (Show, Enum, Eq, Ord, Bounded)
data Weekday = Sweetmorn
| Boomtime
| Pungenday
| PricklePrickle
| SettingOrange
deriving (Show, Enum, Eq, Ord, Bounded)
instance Show DDate where
show (StTibsDay y) = printf "St. Tib's Day, %d YOLD" y
show (DDate w s d y) = printf "%s, %s %d, %d YOLD" (show w) (show s) d y
fromYMD :: (Year, Month, Day) -> DDate
fromYMD (y, m, d)
| leap && dayOfYear == 59 = StTibsDay yold
| leap && dayOfYear >= 60 = mkDDate $ dayOfYear - 1
| otherwise = mkDDate dayOfYear
where
yold = y + 1166
dayOfYear = monthAndDayToDayOfYear leap m d - 1
leap = isLeapYear y
mkDDate dayOfYear = DDate weekday season dayOfSeason yold
where
weekday = toEnum $ dayOfYear `mod` 5
season = toEnum $ dayOfYear `div` 73
dayOfSeason = 1 + dayOfYear `mod` 73</syntaxhighlight>
Examples:
<syntaxhighlight lang="haskell">test = mapM_ display dates
where
display d = putStr (show d ++ " -> ") >> print (fromYMD d)
dates = [(2012,2,28)
,(2012,2,29)
,(2012,3,1)
,(2012,3,14)
,(2012,3,15)
,(2010,9,2)
,(2010,12,31)
,(2011,1,1)]</syntaxhighlight>
<pre>λ> test
(2012,2,28) -> PricklePrickle, Chaos 59, 3178 YOLD
(2012,2,29) -> St. Tib's Day, 3178 YOLD
(2012,3,1) -> SettingOrange, Chaos 60, 3178 YOLD
(2012,3,14) -> Pungenday, Chaos 73, 3178 YOLD
(2012,3,15) -> PricklePrickle, Discord 1, 3178 YOLD
(2010,9,2) -> SettingOrange, Bureaucracy 26, 3176 YOLD
(2010,12,31) -> SettingOrange, TheAftermath 73, 3176 YOLD
(2011,1,1) -> Sweetmorn, Chaos 1, 3177 YOLD</pre>
In GHCi we can also execute shell commands.
Line 950 ⟶ 2,885:
=={{header|Icon}} and {{header|Unicon}}==
This version is loosely based on a modified translation of the original ddate.c and like the original the leap year functionality is Julian not Gregorian.
<
procedure main()
Line 1,004 ⟶ 2,939:
ddate.sday || " of " || seasons[ddate.season])) ||
" in the YOLD " || ddate.year
end</
{{Out}}
Line 1,021 ⟶ 2,956:
=={{header|J}}==
<
leap=: _1j1 * 0 -/@:= 4 100 400 |/ {.@]
bs=: ((#:{.) + 0 j. *@[ * {:@]) +.
disc=: ((1+0 73 bs[ +^:(58<]) -/@todayno@(,: 1 1,~{.)@]) ,~1166+{.@])~ leap</
Example use:
<syntaxhighlight lang="text"> disc 2012 2 28
3178 1 59
disc 2012 2 29
Line 1,043 ⟶ 2,978:
3181 4 73
disc 2000 3 13
3166 1 72j1</
see [[Talk:Discordian_date|talk page]]. But, in essence, this version uses season ordinals with a single imaginary day after the 59th of the first season, on leap years. This is implemented so that that imaginary day has been passed for all remaining days of a leap year.
Line 1,049 ⟶ 2,984:
=={{header|Java}}==
<
import java.util.GregorianCalendar;
public class DiscordianDate {
final static String[] seasons = {"Chaos", "Discord", "Confusion",
"Bureaucracy", "The Aftermath"};
Line 1,109 ⟶ 3,043:
assert (discordianDate(new GregorianCalendar(y, m, d)).equals(result));
}
}</
{{Out}}
Line 1,115 ⟶ 3,049:
=={{header|JavaScript}}==
<
/**
* All Hail Discordia! - this script prints Discordian date using system date.
*
* lang: JavaScript
* author: jklu
* contributors: JamesMcGuigan
*
* changelog:
* - Modified to return same output syntax as unix ddate + module.exports - James McGuigan, 2/Chaos/3183
*
* source: https://rosettacode.org/wiki/Discordian_date#JavaScript
*/
var seasons = [
"Chaos", "Discord", "Confusion",
"Bureaucracy", "The Aftermath"
];
var weekday = [
"Sweetmorn", "Boomtime", "Pungenday",
"Prickle-Prickle", "Setting Orange"
];
var apostle = [
"Mungday", "Mojoday", "Syaday",
"Zaraday", "Maladay"
];
var holiday = [
"Chaoflux", "Discoflux", "Confuflux",
"Bureflux", "Afflux"
];
Date.prototype.isLeapYear = function() {
var year = this.getFullYear();
if( (year & 3) !== 0 ) { return false; }
return ((year % 100) !== 0 || (year % 400) === 0);
};
// Get Day of Year
Date.prototype.getDOY = function() {
var dayCount = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
var mn = this.getMonth();
var dn = this.getDate();
var dayOfYear = dayCount[mn] + dn;
if( mn > 1 && this.isLeapYear() ) { dayOfYear++; }
return dayOfYear;
};
Date.prototype.isToday = function() {
var today = new Date();
return this.getDate() === today.getDate()
&& this.getMonth() === today.getMonth()
&& this.getFullYear() === today.getFullYear()
;
};
function discordianDate(date) {
if( !date ) { date = new Date(); }
var y = date.getFullYear();
var yold = y + 1166;
var dayOfYear = date.getDOY();
var celebrateHoliday = null;
if( date.isLeapYear() ) {
if( dayOfYear == 60 ) {
celebrateHoliday = "St. Tib's Day";
}
else if( dayOfYear > 60 ) {
dayOfYear--;
}
}
dayOfYear--;
var seasonDay = (dayOfYear % 73) + 1;
if( seasonDay == 5 ) {
celebrateHoliday = apostle[divDay];
}
if( seasonDay == 50 ) {
celebrateHoliday = holiday[divDay];
}
var season = seasons[divDay];
var dayOfWeek = weekday[dayOfYear % 5];
var nth = (seasonDay % 10 == 1) ? 'st'
: (seasonDay % 10 == 2) ? 'nd'
: (seasonDay % 10 == 3) ? 'rd'
: 'th';
return "" //(date.isToday() ? "Today is " : '')
+ dayOfWeek
+ ", the " + seasonDay + nth
+ " day of " + season
+ " in the YOLD " + yold
+ (celebrateHoliday ? ". Celebrate " + celebrateHoliday + "!" : '')
;
}
function test(y, m, d, result) {
console.assert((discordianDate(new Date(y, m, d)) == result), [y, m, d, discordianDate(new Date(y, m, d)), result]);
}
// Only run test code if node calls this file directly
if( require.main === module ) {
console.log(discordianDate(new Date(Date.now())));
test(2010, 6, 22, "Pungenday, the 57th day of Confusion in the YOLD 3176");
test(2012, 1, 28, "Prickle-Prickle, the 59th day of Chaos in the YOLD 3178");
test(2012, 1, 29, "Setting Orange, the 60th day of Chaos in the YOLD 3178. Celebrate St. Tib's Day!");
test(2012, 2, 1, "Setting Orange, the 60th day of Chaos in the YOLD 3178");
test(2010, 0, 5, "Setting Orange, the 5th day of Chaos in the YOLD 3176. Celebrate Mungday!");
test(2011, 4, 3, "Pungenday, the 50th day of Discord in the YOLD 3177. Celebrate Discoflux!");
test(2015, 9, 19, "Boomtime, the 73rd day of Bureaucracy in the YOLD 3181");
}
module.exports = discordianDate;
</syntaxhighlight>
Example use:
<
console.log(discordianDate(new Date(Date.now())));
"Boomtime, the 2nd day of Chaos in the YOLD 3183"
</syntaxhighlight>
look at [http://www.cs.cmu.edu/~tilt/principia/body.html#applecorps calendar];
=={{header|JotaCode}}==
<
"Today is ",
@let(1,@add(@switch(@time("mon"),
Line 1,217 ⟶ 3,216:
", YOLD ",
@add(@time("year"),3066))
)),".")</
=={{header|jq}}==
'''Adapted from [[#Wren]]'''
{{works with|jq}}
'''Also works with gojq, the Go implementation of jq'''
'''Also works with fq, a Go implementation of a large subset of jq'''
<syntaxhighlight lang=jq>
### Gregorian calendar
def isLeapYear(y):
y%4 == 0 and ((y%100 != 0) or (y%400 == 0));
### Discordian calendar
def seasons: ["Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"];
def weekdays: ["Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"];
def apostles: ["Mungday", "Mojoday", "Syaday", "Zaraday", "Maladay"];
def holidays: ["Chaoflux", "Discoflux", "Confuflux", "Bureflux", "Afflux"];
# Input: {year, dayOfYear}
def discordian(date):
date.year as $y
| " in the YOLD \($y + 1166)." as $yold
| { doy: date.dayOfYear, holyday: ""}
| if isLeapYear($y) and (.doy == 60) then "St. Tib's Day" + $yold
else if isLeapYear($y) and (.doy > 60) then .doy += -1 else . end
| .doy += -1
| .seasonDay = ((.doy % 73) + 1)
| .seasonNr = ((.doy/73)|floor)
| .weekdayNr = .doy % 5
| if .seasonDay == 5 then .holyday = " Celebrate \(apostles[.seasonNr])!"
elif .seasonDay == 50 then .holyday = " Celebrate \(holidays[.seasonNr])!"
else .
end
| .season = seasons[.seasonNr]
| .dow = weekdays[.weekdayNr]
| "\(.dow), day \(.seasonDay) of \(.season)\($yold)\(.holyday)"
end ;
def dates: [
"2010-01-01",
"2010-01-05",
"2011-02-19",
"2012-02-28",
"2012-02-29",
"2012-03-01",
"2013-03-19",
"2014-05-03",
"2015-05-31",
"2016-06-22",
"2016-07-15",
"2017-08-12",
"2018-09-19",
"2018-09-26",
"2019-10-24",
"2020-12-08",
"2020-12-31"
];
dates[]
| (strptime("%Y-%m-%d")
| {year: .[0], dayOfYear: (1 + .[-1])}) as $dt
| "\(.) = \(discordian($dt))"
</syntaxhighlight>
{{output}}
As for [[#Wren|Wren]].
=={{header|Julia}}==
<syntaxhighlight lang="julia">using Dates
function discordiandate(year::Integer, month::Integer, day::Integer)
discordianseasons = ["Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"]
holidays = Dict(
"Chaos 5" => "Mungday",
"Chaos 50" => "Chaoflux",
"Discord 5" => "Mojoday",
"Discord 50" => "Discoflux",
"Confusion 5" => "Syaday",
"Confusion 50" => "Confuflux",
"Bureaucracy 5" => "Zaraday",
"Bureaucracy 50" => "Bureflux",
"The Aftermath 5" => "Maladay",
"The Aftermath 50" => "Afflux")
today = Date(year, month, day)
isleap = isleapyear(year)
if isleap && month == 2 && day == 29
rst = "St. Tib's Day, YOLD " * string(year + 1166)
else
dy = dayofyear(today)
if isleap && dy >= 60
dy -= 1
end
rst = string(discordianseasons[div(dy, 73) + 1], " ", rem(dy, 73)) # day
if haskey(holidays, rst)
rst *= " ($(holidays[rst]))" # if holiday
end
rst *= ", YOLD $(year + 1166)" # year
end
return rst
end
@show discordiandate(2017, 08, 15)
@show discordiandate(1996, 02, 29)
@show discordiandate(1996, 02, 19)</syntaxhighlight>
{{out}}
<pre>discordiandate(2017, 8, 15) = "Bureaucracy 8, YOLD 3183"
discordiandate(1996, 2, 29) = "St. Tib's Day, YOLD 3162"
discordiandate(1996, 2, 19) = "Chaos 50 (Chaoflux), YOLD 3162"</pre>
=={{header|Kotlin}}==
{{trans|Java}}
<syntaxhighlight lang="scala">import java.util.Calendar
import java.util.GregorianCalendar
enum class Season {
Chaos, Discord, Confusion, Bureaucracy, Aftermath;
companion object { fun from(i: Int) = values()[i / 73] }
}
enum class Weekday {
Sweetmorn, Boomtime, Pungenday, Prickle_Prickle, Setting_Orange;
companion object { fun from(i: Int) = values()[i % 5] }
}
enum class Apostle {
Mungday, Mojoday, Syaday, Zaraday, Maladay;
companion object { fun from(i: Int) = values()[i / 73] }
}
enum class Holiday {
Chaoflux, Discoflux, Confuflux, Bureflux, Afflux;
companion object { fun from(i: Int) = values()[i / 73] }
}
fun GregorianCalendar.discordianDate(): String {
val y = get(Calendar.YEAR)
val yold = y + 1166
var dayOfYear = get(Calendar.DAY_OF_YEAR)
if (isLeapYear(y)) {
if (dayOfYear == 60)
return "St. Tib's Day, in the YOLD " + yold
else if (dayOfYear > 60)
dayOfYear--
}
val seasonDay = --dayOfYear % 73 + 1
return when (seasonDay) {
5 -> "" + Apostle.from(dayOfYear) + ", in the YOLD " + yold
50 -> "" + Holiday.from(dayOfYear) + ", in the YOLD " + yold
else -> "" + Weekday.from(dayOfYear) + ", day " + seasonDay + " of " + Season.from(dayOfYear) + " in the YOLD " + yold
}
}
internal fun test(y: Int, m: Int, d: Int, result: String) {
assert(GregorianCalendar(y, m, d).discordianDate() == result)
}
fun main(args: Array<String>) {
println(GregorianCalendar().discordianDate())
test(2010, 6, 22, "Pungenday, day 57 of Confusion in the YOLD 3176")
test(2012, 1, 28, "Prickle-Prickle, day 59 of Chaos in the YOLD 3178")
test(2012, 1, 29, "St. Tib's Day, in the YOLD 3178")
test(2012, 2, 1, "Setting Orange, day 60 of Chaos in the YOLD 3178")
test(2010, 0, 5, "Mungday, in the YOLD 3176")
test(2011, 4, 3, "Discoflux, in the YOLD 3177")
test(2015, 9, 19, "Boomtime, day 73 of Bureaucracy in the YOLD 3181")
}</syntaxhighlight>
=={{header|MAD}}==
<syntaxhighlight lang="mad"> R DISCORDIAN DATE CALCULATION
R
R PUNCH CARD SHOULD CONTAIN -
R MM/DD/YYYY
R IN GREGORIAN CALENDAR
NORMAL MODE IS INTEGER
VECTOR VALUES MLENGT =
0 0,0,31,59,90,120,151,181,212,243,273,304,334
VECTOR VALUES TIBS =
0 $31HSAINT TIBS DAY IN THE Y.O.L.D. ,I4*$
VECTOR VALUES DISDAT =
0 $C,6H, DAY ,I2,S1,3HOF ,C,S1,16HIN THE Y.O.L.D. ,I4*$
VECTOR VALUES DISDAY = $SWEETMORN$, $BOOMTIME$,
0 $PUNGENDAY$, $PRICKLE-PRICKLE$, $SETTING ORANGE$
VECTOR VALUES DISSSN = $CHAOS$, $DISCORD$,
0 $CONFUSION$, $BUREAUCRACY$, $THE AFTERMATH$
VECTOR VALUES CLDAY = $10HCELEBRATE ,C,3HDAY*$
VECTOR VALUES CLFLUX = $10HCELEBRATE ,C,4HFLUX*$
VECTOR VALUES HOLY5 = $MUNG$,$MOJO$,$SYA$,$ZARA$,$MALA$
VECTOR VALUES HOLY50 = $CHAO$,$DISCO$,$CONFU$,$BURE$,$AF$
READ FORMAT GREG,GMONTH,GDAY,GYEAR
VECTOR VALUES GREG = $2(I2,1H/),I4*$
WHENEVER GMONTH.E.2 .AND. GDAY.E.29
PRINT FORMAT TIBS, GYEAR + 1166
OTHERWISE
YRDAY = MLENGT(GMONTH)+GDAY
SEASON = YRDAY/73
DAY = YRDAY-SEASON*73
WKDAY = (YRDAY-1)-(YRDAY-1)/5*5
PRINT FORMAT DISDAT, DISDAY(WKDAY), DAY,
0 DISSSN(SEASON), GYEAR + 1166
WHENEVER DAY.E.5
PRINT FORMAT CLDAY, HOLY5(SEASON)
OR WHENEVER DAY.E.50
PRINT FORMAT CLFLUX, HOLY50(SEASON)
END OF CONDITIONAL
END OF CONDITIONAL
END OF PROGRAM</syntaxhighlight>
{{out}}
<pre>01/05/2005
SETTING ORANGE, DAY 5 OF CHAOS IN THE Y.O.L.D. 3171
CELEBRATE MUNGDAY
09/26/1995
PRICKLE-PRICKLE, DAY 50 OF BUREAUCRACY IN THE Y.O.L.D. 3161
CELEBRATE BUREFLUX
02/29/1996
SAINT TIBS DAY IN THE Y.O.L.D. 3162
12/05/2020
PRICKLE-PRICKLE, DAY 47 OF THE AFTERMATH IN THE Y.O.L.D. 3186</pre>
=={{header|Maple}}==
<syntaxhighlight lang="maple">convertDiscordian := proc(year, month, day)
local days31, days30, daysThisYear, i, dYear, dMonth, dDay, seasons, week, dayOfWeek;
days31 := [1, 3, 5, 7, 8, 10, 12];
days30 := [4, 6, 9, 11];
if month < 1 or month >12 then
error "Invalid month: %1", month;
end if;
if (member(month, days31) and day > 31) or (member(month, days30) and day > 30) or (month = 2 and day > 29) or day < 1 then
error "Invalid date: %1", day;
end if;
dYear := year + 1166;
if month = 2 and day = 29 then
printf("The date is St. Tib's Day, YOLD %a.\n", dYear);
else
seasons := ["Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"];
week := ["Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"];
daysThisYear := 0;
for i to month-1 do
if member(i, days31) then
daysThisYear := daysThisYear + 31;
elif member(i, days30) then
daysThisYear := daysThisYear + 30;
else
daysThisYear := daysThisYear + 28;
end if;
end do;
daysThisYear := daysThisYear + day -1;
dMonth := seasons[trunc((daysThisYear) / 73)+1];
dDay := daysThisYear mod 73 +1;
dayOfWeek := week[daysThisYear mod 5 +1];
printf("The date is %s %s %s, YOLD %a.\n", dayOfWeek, dMonth, convert(dDay, ordinal), dYear);
end if;
end proc:
convertDiscordian (2016, 1, 1);
convertDiscordian (2016, 2, 29);
convertDiscordian (2016, 12, 31);</syntaxhighlight>
{{out}}
<pre>
The date is Sweetmorn Chaos first, YOLD 3182.
The date is St. Tib's Day, YOLD 3182.
The date is Setting Orange The Aftermath 73rd, YOLD 3182.
</pre>
=={{header|Mathematica}} / {{header|Wolfram Language}}==
<
DMONTHS = {"Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"};
Line 1,234 ⟶ 3,511:
Print["Today is ", DDAYS[[Mod[dday,4] + 1]],", ",DMONTHS[[season+1]]," ",dday,", YOLD ",year]
];
]</
{{Out}}
<pre>DiscordianDate[2012,2,28]
Line 1,244 ⟶ 3,521:
DiscordianDate[2012,3,1]
-> Today is Setting Orange, Chaos 60, YOLD 3178</pre>
=={{header|Nim}}==
We use a DateTime object as intermediate representation.
<syntaxhighlight lang="nim">import times, strformat
const
DiscordianOrigin = -1166
SaintTibsDay = "St. Tib’s Day"
type
Season = enum
sCha = (1, "Chaos"), sDis = "Discord", sCon = "Confusion",
sBur = "Bureaucracy", sAft = "The Aftermath"
ErisianWeekDay = enum
eSwe = "Sweetmorn", eBoo = "Boomtime", ePun = "Pungenday",
ePri = "Prickle-Prickle", eSet = "Setting Orange"
SeasonDayRange = range[1..73]
# Description of a discordian date.
DiscordianDate = object
year: int
yearday: YeardayRange
case isSaintTibsDay: bool
of false:
seasondayZero: int
seasonZero: int
weekday: ErisianWeekDay
else:
nil
#---------------------------------------------------------------------------------------------------
proc toDiscordianDate(gdate: DateTime): DiscordianDate =
## Convert a DateTime to a discordian date.
## All the time fields are ignored.
# Create the object.
result = DiscordianDate(isSaintTibsDay: gdate.isLeapDay)
# The yearday field is unchanged.
result.yearday = gdate.yearday
# The year is simply translated.
result.year = gdate.year - DiscordianOrigin
# For remaining fields, we must take in account leap years.
if not result.isSaintTibsDay:
var yearday = result.yearday
if gdate.year.isLeapYear and result.yearday > 59:
dec yearday
# Now, we have simply to use division and modulo using the corrected yearday.
result.seasonZero = yearday div SeasonDayRange.high
result.seasondayZero = yearday mod SeasonDayRange.high
result.weekday = ErisianWeekDay(yearday mod 5)
#---------------------------------------------------------------------------------------------------
proc `$`(date: DiscordianDate): string =
## Convert a discordian date to a string.
if date.isSaintTibsDay:
result = SaintTibsDay
else:
result = fmt"{date.weekday}, {Season(date.seasonZero + 1)} {date.seasondayZero + 1}"
result &= fmt", {date.year} YOLD"
#---------------------------------------------------------------------------------------------------
proc showDiscordianDate(year, month, day: Natural) =
## Show the discordian date corresponding to a gregorian date.
let gdate = initDateTime(year = year, month = Month(month), monthday = day,
hour = 0, minute = 0, second = 0)
echo gdate.format("YYYY-MM-dd"), ": ", $gdate.toDiscordianDate()
#———————————————————————————————————————————————————————————————————————————————————————————————————
showDiscordianDate(2100, 12, 31)
showDiscordianDate(2012, 02, 28)
showDiscordianDate(2012, 02, 29)
showDiscordianDate(2012, 03, 01)
showDiscordianDate(2010, 07, 22)
showDiscordianDate(2012, 09, 02)
showDiscordianDate(2012, 12, 31)</syntaxhighlight>
{{out}}
<pre>2100-12-31: Setting Orange, The Aftermath 73, 3266 YOLD
2012-02-28: Prickle-Prickle, Chaos 59, 3178 YOLD
2012-02-29: St. Tib’s Day, 3178 YOLD
2012-03-01: Setting Orange, Chaos 60, 3178 YOLD
2010-07-22: Pungenday, Confusion 57, 3176 YOLD
2012-09-02: Setting Orange, Bureaucracy 26, 3178 YOLD
2012-12-31: Setting Orange, The Aftermath 73, 3178 YOLD</pre>
=={{header|Pascal}}==
<syntaxhighlight lang="pascal">
program ddate;
{
This program is free software, it's done it's time
and paid for it's crime. You can copy, edit and use this
software under the terms of the GNU GPL v3 or later.
Copyright Pope Englebert Finklestien,
On this day Boomtime, the 71st day of Confusion in the YOLD 3183
This program will print out the current date in Erisian format as specified in
P R I N C I P I A D I S C O R D I A
If you run it with a date it the command line in european format (dd mm yy) it
will print the equvolent Discordian date. If you omit the year and month the
current Anerisiean month and year as assumed.
POPE Englebert Finklestien.
}
uses Sysutils;
var
YY,MM,DD : word;
YOLD : Boolean;
Hedgehog: integer;
Eris: string;
snub: string;
chaotica: string;
midget: string;
bob: string;
Anerisiandaysinmonth: array[1..12] of integer = (31,28,31,30,31,30,31,31,30,31,30,31);
procedure anerisiandate;
{ tHIS JUST GETS THE DATE INTO THE DD,MM,YY VARIABLES }
begin
DeCodeDate(date,yy,mm,dd);
end;
procedure BORIS;
{ This just tests to see if we are in a leap year }
var
snafu : boolean;
begin
snafu := False;
if (yy mod 4 = 0) then snafu := True;
if ((yy mod 100 = 0) and (yy mod 400 <> 0)) then snafu := False;
if ((snafu) and (mm = 2 ) and (dd=29)) then YOLD := True;
end;
function hodgepodge: integer;
{ This returns the total number of days since the year began.
It doesn't bother with leap years at all.
I get a wierd optical illusion looking at the until in this }
var
fnord : integer;
begin
Hedgehog := 1;
hodgepodge := 0;
fnord :=0;
if (mm > 1) then repeat
fnord := fnord + Anerisiandaysinmonth[Hedgehog];
Hedgehog := Hedgehog +1;
until Hedgehog = mm;
fnord := fnord + dd;
hodgepodge := fnord;
end;
function treesaregreen(): string;
{Returns the YOLD as a string}
begin
treesaregreen := IntTOStr(yy+1166);
end;
procedure GRAYFACE;
{This calculates everything, but does not bother much about leap years}
var
wrestle: integer;
Thwack: string;
begin
Hedgehog := hodgepodge;
wrestle := 0;
Thwack := 'th';
{set bob to the name of the holyday or St. Tibs day }
bob := 'St. Tibs Day';
if (Hedgehog = 5 ) then bob := 'Mungday';
if (Hedgehog = 50 ) then bob := 'Chaoflux';
if (Hedgehog = 78 ) then bob := 'Mojoday';
if (Hedgehog = 123) then bob := 'Discoflux';
if (Hedgehog = 151) then bob := 'Syaday';
if (Hedgehog = 196) then bob := 'Confuflux';
if (Hedgehog = 224) then bob := 'Zaraday';
if (Hedgehog = 269) then bob := 'Bureflux';
if (Hedgehog = 297) then bob := 'Maladay';
if (Hedgehog = 342) then bob := 'Afflux';
{Not doing things the usual way
Lets find the week day and count the number of
5 day weeks all at the same time}
while (Hedgehog > 5) do begin
Hedgehog := Hedgehog -5;
wrestle := Wrestle + 1;
end;
if (Hedgehog = 1) then snub := 'Sweetmorn' ;
if (Hedgehog = 2) then snub := 'BoomTime';
if (Hedgehog = 3) then snub := 'Pungenday';
if (Hedgehog = 4) then snub := 'Prickle-Prickle';
if (Hedgehog = 5) then snub := 'Setting Orange';
{Now to set the Season name}
chaotica:='The Aftermath';
if (wrestle <=57) then chaotica := 'Bureaucracy';
if ((wrestle = 58) and (Hedgehog < 3)) then chaotica := 'Bureaucracy';
if (wrestle <= 42) then chaotica := 'Confusion';
if ((wrestle = 43) and (Hedgehog < 5)) then chaotica := 'Confusion';
if (wrestle <=28) then chaotica := 'Discord';
if ((wrestle = 29) and (Hedgehog < 2)) then chaotica := 'Discord';
if (wrestle <=13) then chaotica := 'Chaos';
if ((wrestle = 14) and (Hedgehog < 4)) then chaotica := 'Chaos';
{Now all we need the day of the season}
wrestle := (wrestle*5)+Hedgehog;
while (wrestle >73) do wrestle := wrestle -73;
{pick the appropriate day postfix, allready set to th}
if (wrestle in [1,21,31,41,51,61,71]) then Thwack:='st';
if (wrestle in [2,22,32,42,52,62,72]) then Thwack:='nd';
if (wrestle in [3,23,33,43,53,63,73]) then Thwack:='rd';
{Check to see if it is a holy day, if so bob will have
the right holyday name already, including St Tibs Day}
if (wrestle in [5,50]) then YOLD := True;
{I love this line of code}
midget := IntToStr(wrestle) + Thwack;
end;
{The main program starts here}
begin
anerisiandate;
if (ParamCount >=1) then dd := StrTOInt(ParamStr(1));
if (ParamCount >=2) then mm := StrToInt(ParamStr(2));
if (ParamCount =3) then yy := StrToInt(ParamStr(3));
BORIS;
GRAYFACE;
{ The only thing to bother about is holy days and St Tibs day }
Eris := 'Today is: ' + snub +' the ' + midget +' day of the season of ' + chaotica;
if (YOLD) then begin
Eris := 'Celebrate for today, ' + snub + ' the ' + midget + ' day of ' +chaotica + ' is the holy day of ' + bob;
end;
{The only place we deal with St. Tibs Day}
if ((YOLD) and ((mm=2) and (dd=29))) then Eris := 'Celebrate ' + bob + ' Chaos';
{This next line applies to all possibilities}
Eris := Eris + ' YOLD ' + treesaregreen;
WriteLn(Eris);
end.
</syntaxhighlight>
{{Out}}
<pre>
./ddate
Today is: Setting Orange the 1st day of the season of The Aftermath YOLD 3183
./ddate 12
Celebrate for today, Prickle-Prickle the 5th day of The Aftermath is the holy day of Zaraday YOLD 3183
./ddate 13 5
Today is: Pungenday the 60th day of the season of Confusion YOLD 3183
./ddate 29 2 2020
Celebrate St. Tibs Day Chaos YOLD 3186
</pre>
=={{header|Perl}}==
{{trans|
<
use strict;
use warnings;
Line 1,280 ⟶ 3,827:
say "$_ is " . ddate($_) for qw< 2010-07-22 2012-02-28 2012-02-29 2012-03-01 >;
</syntaxhighlight>
{{out}}
<pre>2010-07-22 is Pungenday, the 57th day of Confusion in the YOLD 3176
Line 1,324 ⟶ 3,836:
=={{header|Phix}}==
<!--<syntaxhighlight lang="phix">(phixonline)-->
<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">seasons</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"Chaos"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Discord"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Confusion"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Bureaucracy"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"The Aftermath"</span><span style="color: #0000FF;">},</span>
<span style="color: #000000;">weekday</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"Sweetmorn"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Boomtime"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Pungenday"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Prickle-Prickle"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Setting Orange"</span><span style="color: #0000FF;">},</span>
<span style="color: #000000;">apostle</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"Mungday"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Mojoday"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Syaday"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Zaraday"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Maladay"</span><span style="color: #0000FF;">},</span>
<span style="color: #000000;">holiday</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"Chaoflux"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Discoflux"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Confuflux"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Bureflux"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Afflux"</span><span style="color: #0000FF;">}</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">discordianDate</span><span style="color: #0000FF;">(</span><span style="color: #004080;">sequence</span> <span style="color: #000000;">dt</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">y</span><span style="color: #0000FF;">,</span><span style="color: #000000;">m</span><span style="color: #0000FF;">,</span><span style="color: #000000;">d</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">dt</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">leap</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">is_leap_year</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">),</span>
<span style="color: #000000;">doy</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">day_of_year</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">,</span><span style="color: #000000;">m</span><span style="color: #0000FF;">,</span><span style="color: #000000;">d</span><span style="color: #0000FF;">)-</span><span style="color: #000000;">1</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">dyear</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%d"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">y</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1166</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">leap</span> <span style="color: #008080;">and</span> <span style="color: #000000;">m</span><span style="color: #0000FF;">=</span><span style="color: #000000;">2</span> <span style="color: #008080;">and</span> <span style="color: #000000;">d</span><span style="color: #0000FF;">=</span><span style="color: #000000;">29</span> <span style="color: #008080;">then</span>
<span style="color: #008080;">return</span> <span style="color: #008000;">"St. Tib's Day, in the YOLD "</span> <span style="color: #0000FF;">&</span> <span style="color: #000000;">dyear</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">leap</span> <span style="color: #008080;">and</span> <span style="color: #000000;">doy</span><span style="color: #0000FF;">>=</span><span style="color: #000000;">60</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">doy</span> <span style="color: #0000FF;">-=</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">dsday</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">remainder</span><span style="color: #0000FF;">(</span><span style="color: #000000;">doy</span><span style="color: #0000FF;">,</span><span style="color: #000000;">73</span><span style="color: #0000FF;">)+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">dseason</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">doy</span><span style="color: #0000FF;">/</span><span style="color: #000000;">73</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">dsday</span><span style="color: #0000FF;">=</span><span style="color: #000000;">5</span> <span style="color: #008080;">then</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">apostle</span><span style="color: #0000FF;">[</span><span style="color: #000000;">dseason</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">&</span> <span style="color: #008000;">", in the YOLD "</span> <span style="color: #0000FF;">&</span> <span style="color: #000000;">dyear</span>
<span style="color: #008080;">elsif</span> <span style="color: #000000;">dsday</span><span style="color: #0000FF;">=</span><span style="color: #000000;">50</span> <span style="color: #008080;">then</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">holiday</span><span style="color: #0000FF;">[</span><span style="color: #000000;">dseason</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">&</span> <span style="color: #008000;">", in the YOLD "</span> <span style="color: #0000FF;">&</span> <span style="color: #000000;">dyear</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">dseas</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">seasons</span><span style="color: #0000FF;">[</span><span style="color: #000000;">dseason</span><span style="color: #0000FF;">],</span>
<span style="color: #000000;">dwday</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">weekday</span><span style="color: #0000FF;">[</span><span style="color: #7060A8;">remainder</span><span style="color: #0000FF;">(</span><span style="color: #000000;">doy</span><span style="color: #0000FF;">,</span><span style="color: #000000;">5</span><span style="color: #0000FF;">)+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
<span style="color: #008080;">return</span> <span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%s, day %d of %s in the YOLD %s"</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">dwday</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">dsday</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">dseas</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">dyear</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #000080;font-style:italic;">-- test code</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">dt</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">2015</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">}</span>
<span style="color: #008080;">include</span> <span style="color: #004080;">timedate</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">oneday</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">timedelta</span><span style="color: #0000FF;">(</span><span style="color: #000000;">days</span><span style="color: #0000FF;">:=</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">set_timedate_formats</span><span style="color: #0000FF;">({</span><span style="color: #008000;">"DD/MM/YYYY"</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">5</span> <span style="color: #008080;">do</span>
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%s: %s\n"</span><span style="color: #0000FF;">,{</span><span style="color: #7060A8;">format_timedate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dt</span><span style="color: #0000FF;">),</span><span style="color: #000000;">discordianDate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dt</span><span style="color: #0000FF;">)})</span>
<span style="color: #000000;">dt</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">adjust_timedate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dt</span><span style="color: #0000FF;">,</span><span style="color: #000000;">oneday</span><span style="color: #0000FF;">*</span><span style="color: #000000;">72</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%s: %s\n"</span><span style="color: #0000FF;">,{</span><span style="color: #7060A8;">format_timedate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dt</span><span style="color: #0000FF;">),</span><span style="color: #000000;">discordianDate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dt</span><span style="color: #0000FF;">)})</span>
<span style="color: #000000;">dt</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">adjust_timedate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dt</span><span style="color: #0000FF;">,</span><span style="color: #000000;">oneday</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
<!--</syntaxhighlight>-->
{{out}}
<pre>
Line 1,383 ⟶ 3,894:
=={{header|PHP}}==
<syntaxhighlight lang="php">
<?php
$Anerisia = array(31,28,31,30,31,30,31,31,30,31,30,31);
$MONTHS = array("Choas","Discord","Confusion","Bureacracy","The Aftermath");
$DAYS = array("Setting Orange","Sweetmorn","BoomTime","Pungenday","Prickle-Prickle");
$Dsuff = array('th','st','nd','rd','th','th','th','th','th','th');
$Holy5 = array("Mungday","MojoDay","Syaday","Zaraday","Maladay");
$Holy50 = array("Chaoflux","Discoflux","Confuflux","Bureflux","Afflux");
// Get the current system date and assign to some variables
$edate = explode(" ",date('Y m j L'));
$usery = $edate[0];
$userd = $edate[2];
// If the user supplied us with a date overide the one we got from the system.
// If you could get the date from users browser via javascript and then call
// this script with the users date. ddate.php?y=year&m=month&d=day mostly it
// won't matter but if the server is in a different time zone to the user
// There will be occasional incorrect results from the users POV.
if (isset($_GET['y']) && isset($_GET['m']) && isset($_GET['d'])) {
$usery = $_GET['y'];
$userm = $_GET['m'];
$userd = $_GET['d'];
$IsLeap = 0;
if (($usery%4 == 0) && ($usery%100 >0)) $IsLeap =1;
}
// We need to know the total number of days in the year so far
$userdays = 0;
$i = 0;
while ($i < ($userm-1)) {
$userdays = $userdays + $Anerisia[$i];
$i = $i +1;
}
$userdays = $userdays + $userd;
// We can now work out the full discordian date for most dates
// PHP does not do integer division, so we use 73.2 as a divisor
// the value 73.2 works, larger values cause an off-by-one on season
// changes for the later seasons .
// This is not needed with the mod operator.
$IsHolyday = 0;
$dyear = $usery + 1166;
$dmonth = $MONTHS[$userdays/73.2];
$dday = $userdays%73;
if (0 == $dday) $dday = 73;
$Dname = $DAYS[$userdays%5];
$Holyday = "St. Tibs Day";
if ($dday == 5) {
$Holyday = $Holy5[$userdays/73.2];
$IsHolyday =1;
}
if ($dday == 50) {
$Holyday = $Holy50[$userdays/73.2];
$IsHolyday =1;
}
if (($IsLeap ==1) && ($userd ==29) and ($userm ==2)) $IsHolyday = 2;
// work out the suffix to the day number
$suff = $Dsuff[$dday%10] ;
if ((11 <= $dday) && (19 >= $dday)) $suff='th';
// code to display the date ...
if ($IsHolyday ==2)
echo "</br>Celeberate ",$Holyday," ",$dmonth," YOLD ",$dyear;
if ($IsHolyday ==1)
echo "</br>Celeberate for today ", $Dname , " The ", $dday,"<sup>",$suff,"</sup>", " day of ", $dmonth , " YOLD " , $dyear , " is the holy day of " , $Holyday;
if ($IsHolyday == 0)
echo "</br>Today is " , $Dname , " the " , $dday ,"<sup>",$suff, "</sup> day of " , $dmonth , " YOLD " , $dyear;
?>
</syntaxhighlight>
{{Out}}
<pre>ddate.php #23 November 2011
Today is Boomtime
ddate.php?y=2012&m=2&y=28
Today is Prickle-Prickle
ddate.php?y=2012&m=2&y=29
ddate.php?y=
Celeberate for today Prickle-Prickle The 5th day of Bureacracy YOLD 3183 is the holy day of Zaraday
</pre>
=={{header|PicoLisp}}==
{{trans|Python}}
<
(let? Date (date Year Month Day)
(let (Leap (date Year 2 29) D (- Date (date Year 1 1)))
Line 1,478 ⟶ 4,010:
(inc (% D 73))
", YOLD "
(+ Year 1166) ) ) ) ) )</
=={{header|Pike}}==
Pike includes a Discordian calendar.
dates can be converted from any calendar to any other.
<
Result: "Pungenday, 59 Bureaucracy 3177"
> Calendar.Discordian.Day(Calendar.Day(2011,11,11))->format_ext_ymd();
Line 1,490 ⟶ 4,022:
Result: "Setting Orange, 23 The Aftermath 3177"
> Calendar.Day((Calendar.Discordian.Month()+1)->day(1));
Result: Day(Thu 20 Oct 2011)</
=={{header|PL/M}}==
{{works with|8080 PL/M Compiler}} ... under CP/M (or an emulator)
<br>Based on:{{Trans|MAD}}...via Algol W
<syntaxhighlight lang="plm">
100H: /* DISCORDIAN DATE CALCULATION - TRANSLATION OF MAD (VIA ALGOL W) */
/* CP/M SYSTEM CALL AND I/O ROUTINES */
BDOS: PROCEDURE( FN, ARG ); DECLARE FN BYTE, ARG ADDRESS; GOTO 5; END;
PR$CHAR: PROCEDURE( C ); DECLARE C BYTE; CALL BDOS( 2, C ); END;
PR$STRING: PROCEDURE( S ); DECLARE S ADDRESS; CALL BDOS( 9, S ); END;
PR$NL: PROCEDURE; CALL PR$CHAR( 0DH ); CALL PR$CHAR( 0AH ); END;
PR$NUMBER: PROCEDURE( N ); /* PRINTS A NUMBER IN THE MINIMUN FIELD WIDTH */
DECLARE N ADDRESS;
DECLARE V ADDRESS, N$STR ( 6 )BYTE, W BYTE;
V = N;
W = LAST( N$STR );
N$STR( W ) = '$';
N$STR( W := W - 1 ) = '0' + ( V MOD 10 );
DO WHILE( ( V := V / 10 ) > 0 );
N$STR( W := W - 1 ) = '0' + ( V MOD 10 );
END;
CALL PR$STRING( .N$STR( W ) );
END PR$NUMBER;
/* COMMAND LINE */
DECLARE CL$ADDR LITERALLY '80H'; /* ADDRESS OF THE COMMAND LINE */
DECLARE CL$PTR ADDRESS; /* POINTER TO THE CURRENT COMMAND LINE CHAR */
DECLARE CL$CHAR BASED CL$PTR BYTE; /* CURRENT COMMAND LINE CHARACTER */
DECLARE CL$LEN ADDRESS; /* LENGTH OF THE COMMAND LINE */
/* INITIALISES THE COMMAND LINE VARIABLES */
CL$INIT: PROCEDURE;
CL$PTR = CL$ADDR;
CL$LEN = CL$CHAR;
CL$PTR = CL$PTR + 1;
END CL$INIT;
/* READS A NUMBER FROM THE COMMAND LINE, THE TERMINATOR IS IGNORED */
CL$NUMBER: PROCEDURE ADDRESS;
DECLARE N ADDRESS;
N = 0;
DO WHILE CL$PTR <= ( CL$ADDR + CL$LEN ) AND CL$CHAR = ' ';
CL$PTR = CL$PTR + 1;
END;
DO WHILE CL$PTR <= ( CL$ADDR + CL$LEN ) AND CL$CHAR >= '0'
AND CL$CHAR <= '9';
N = ( N * 10 ) + ( CL$CHAR - '0' );
CL$PTR = CL$PTR + 1;
END;
CL$PTR = CL$PTR + 1; /* SKIP THE CHARACTER THAT TERMINATED THE NUMBER */
RETURN N;
END CL$NUMBER;
/* TASK */
DECLARE HOLY5 ( 5 )ADDRESS;
DECLARE HOLY50 ( 5 )ADDRESS;
DECLARE DISDAY ( 5 )ADDRESS;
DECLARE DISSSN ( 5 )ADDRESS;
DECLARE MLENGT ( 13 )ADDRESS
INITIAL( 0, 0, 31, 59, 90, 120
, 151, 181, 212, 243, 273, 304, 334
);
HOLY5 (0) = .'MUNG$'; HOLY5 (1) = .'MOJO$'; HOLY5 (2) = .'SYA$';
HOLY5 (3) = .'ZARA$'; HOLY5 (4) = .'MALA$';
HOLY50(0) = .'CHAO$'; HOLY50(1) = .'DISCO$'; HOLY50(2) = .'CONFU$';
HOLY50(3) = .'BURE$'; HOLY50(4) = .'AF$';
DISDAY(0) = .'SWEETMORN$'; DISDAY(1) = .'BOOMTIME$';
DISDAY(2) = .'PUNGENDAY$'; DISDAY(3) = .'PRICKLE-PRICKLE$';
DISDAY(4) = .'SETTING ORANGE$';
DISSSN(0) = .'CHAOS$'; DISSSN(1) = .'DISCORD$'; DISSSN(2) = .'CONFUSION$';
DISSSN(3) = .'BUREAUCRACY$'; DISSSN(4) = .'THE AFTERMATH$';
/* GET THE GREGORIAN DATE FROM THE COMMAND LINE, NB: NO VALIDATION */
DECLARE ( GMONTH, GDAY, GYEAR ) ADDRESS; /* MUST BE IN MM/DD/YYYY FORMAT */
CALL CL$INIT;
GMONTH = CL$NUMBER; GDAY = CL$NUMBER; GYEAR = CL$NUMBER;
CALL PR$NUMBER( GMONTH );CALL PR$CHAR( '/' );CALL PR$NUMBER( GDAY );
CALL PR$CHAR( '/');CALL PR$NUMBER( GYEAR );CALL PR$NL;
/* CONVERT AND PRINT THE DATE */
IF GMONTH = 2 AND GDAY = 29
THEN DO;
CALL PR$STRING( .'SAINT TIB''S DAY IN THE Y.O.L.D. $' );
CALL PR$NUMBER( GYEAR + 1166 );
END;
ELSE DO;
DECLARE ( YRDAY, SEASON, DAY, WKDAY ) ADDRESS;
YRDAY = MLENGT(GMONTH)+GDAY;
SEASON = YRDAY / 73;
DAY = YRDAY-SEASON*73;
WKDAY = (YRDAY-1) MOD 5;
CALL PR$STRING( DISDAY(WKDAY) );
CALL PR$STRING( .', DAY $' );
CALL PR$NUMBER( DAY );
CALL PR$STRING( .' OF $' );
CALL PR$STRING( DISSSN(SEASON) );
CALL PR$STRING( .' IN THE Y.O.L.D $' );
CALL PR$NUMBER( GYEAR + 1166 );
IF DAY = 5 THEN DO;
CALL PR$NL;
CALL PR$STRING( .'CELEBRATE $' );
CALL PR$STRING( HOLY5(SEASON) );
CALL PR$STRING( .'DAY$' );
END;
ELSE IF DAY = 50 THEN DO;
CALL PR$NL;
CALL PR$STRING( .'CELEBRATE $' );
CALL PR$STRING( HOLY50(SEASON) );
CALL PR$STRING( .'FLUX$' );
END;
END;
CALL PR$NL;
EOF
</syntaxhighlight>
{{out}}
With the command line: <code>DISCORD 03/29/2023</code>:
<pre>
3/29/2023
PUNGENDAY, DAY 15 OF DISCORD IN THE Y.O.L.D 3189
</pre>
=={{header|PowerBASIC}}==
<
#DIM ALL
Line 1,557 ⟶ 4,213:
? result
END FUNCTION</
=={{header|PowerShell}}==
{{works with|powershell|2}}
<syntaxhighlight lang="powershell">
function ConvertTo-Discordian ( [datetime]$GregorianDate )
{
$DayOfYear = $GregorianDate.DayOfYear
$Year = $GregorianDate.Year + 1166
If ( [datetime]::IsLeapYear( $GregorianDate.Year ) -and $DayOfYear -eq 60 )
{ $Day = "St. Tib's Day" }
Else
{
If ( [datetime]::IsLeapYear( $GregorianDate.Year ) -and $DayOfYear -gt 60 )
{ $DayOfYear-- }
$Weekday = @( 'Sweetmorn', 'Boomtime', 'Pungenday', 'Prickle-Prickle', 'Setting Orange' )[(($DayOfYear - 1 ) % 5 )]
$Season = @( 'Chaos', 'Discord', 'Confusion', 'Bureaucracy', 'The Aftermath' )[( [math]::Truncate( ( $DayOfYear - 1 ) / 73 ) )]
$DayOfSeason = ( $DayOfYear - 1 ) % 73 + 1
$Day = "$Weekday, $Season $DayOfSeason"
}
$DiscordianDate = "$Day, $Year YOLD"
return $DiscordianDate
}
ConvertTo-Discordian ([datetime]'1/5/2016')
ConvertTo-Discordian ([datetime]'2/29/2016')
ConvertTo-Discordian ([datetime]'12/8/2016')
</syntaxhighlight>
{{out}}
<pre>
Setting Orange, Chaos 5, 3182 YOLD
St. Tib's Day, 3182 YOLD
Boomtime, The Aftermath 50, 3182 YOLD
</pre>
=={{header|Prolog}}==
{{works with|SWI Prolog}}
<syntaxhighlight lang="prolog">% See https://en.wikipedia.org/wiki/Discordian_calendar
main:-
test(2022, 4, 20),
test(2020, 5, 24),
test(2020, 2, 29),
test(2019, 7, 15),
test(2025, 3, 19),
test(2017, 12, 8).
test(Gregorian_year, Gregorian_month, Gregorian_day):-
ddate(Gregorian_year, Gregorian_month, Gregorian_day,
Discordian_date),
format('~|~`0t~d~2+-~|~`0t~d~2+-~|~`0t~d~2+: ~w~n', [Gregorian_year,
Gregorian_month, Gregorian_day, Discordian_date]).
ddate(Gregorian_year, 2, 29, Discordian_date):-
convert_year(Gregorian_year, Discordian_year),
swritef(Discordian_date, 'St. Tib\'s Day in the YOLD %w',
[Discordian_year]),
!.
ddate(Gregorian_year, Gregorian_month, Gregorian_day,
Discordian_date):-
convert_year(Gregorian_year, Discordian_year),
day_of_year(Gregorian_month, Gregorian_day, Daynum),
Season is Daynum//73,
Weekday is Daynum mod 5,
Day_of_season is 1 + Daynum mod 73,
season(Season, Season_name),
week_day(Weekday, Day_name),
(holy_day(Season, Day_of_season, Holy_day) ->
swritef(Discordian_date, '%w, day %w of %w in the YOLD %w. Celebrate %w!',
[Day_name, Day_of_season, Season_name, Discordian_year, Holy_day])
;
swritef(Discordian_date, '%w, day %w of %w in the YOLD %w',
[Day_name, Day_of_season, Season_name, Discordian_year])
).
convert_year(Gregorian_year, Discordian_year):-
Discordian_year is Gregorian_year + 1166.
day_of_year(M, D, N):-
month_days(M, Days),
N is Days + D - 1.
month_days(1, 0).
month_days(2, 31).
month_days(3, 59).
month_days(4, 90).
month_days(5, 120).
month_days(6, 151).
month_days(7, 181).
month_days(8, 212).
month_days(9, 243).
month_days(10, 273).
month_days(11, 304).
month_days(12, 334).
season(0, 'Chaos').
season(1, 'Discord').
season(2, 'Confusion').
season(3, 'Bureacracy').
season(4, 'The Aftermath').
week_day(0, 'Sweetmorn').
week_day(1, 'Boomtime').
week_day(2, 'Pungenday').
week_day(3, 'Prickle-Prickle').
week_day(4, 'Setting Orange').
holy_day(0, 5, 'Mungday').
holy_day(0, 50, 'Chaoflux').
holy_day(1, 5, 'Mojoday').
holy_day(1, 50, 'Discoflux').
holy_day(2, 5, 'Syaday').
holy_day(2, 50, 'Confuflux').
holy_day(3, 5, 'Zaraday').
holy_day(3, 50, 'Bureflux').
holy_day(4, 5, 'Maladay').
holy_day(4, 50, 'Afflux').</syntaxhighlight>
{{out}}
<pre>
2022-04-20: Setting Orange, day 37 of Discord in the YOLD 3188
2020-05-24: Prickle-Prickle, day 71 of Discord in the YOLD 3186
2020-02-29: St. Tib's Day in the YOLD 3186
2019-07-15: Sweetmorn, day 50 of Confusion in the YOLD 3185. Celebrate Confuflux!
2025-03-19: Pungenday, day 5 of Discord in the YOLD 3191. Celebrate Mojoday!
2017-12-08: Boomtime, day 50 of The Aftermath in the YOLD 3183. Celebrate Afflux!
</pre>
=={{header|PureBasic}}==
<
Protected DoY=DayOfYear(Date(Y,M,D,0,0,0)), Yold$=Str(Y+1166)
Dim S.s(4)
Line 1,573 ⟶ 4,355:
EndIf
ProcedureReturn S(DoY/73)+" "+Str(DoY%73)+", Yold "+Yold$
EndProcedure</
=={{header|Python}}==
<
DISCORDIAN_SEASONS = ["Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"]
Line 1,593 ⟶ 4,375:
season, dday = divmod(day_of_year, 73)
return "%s %d, YOLD %d" % (DISCORDIAN_SEASONS[season], dday + 1, year + 1166)
</syntaxhighlight>
=={{header|Racket}}==
{{trans|D}}
<
;;;; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
;;;; Derived from 'D' Implementation
Line 1,648 ⟶ 4,430:
(check-equal? (discordian/ymd 2010 1 5) "Mungday, in the YOLD 3176")
(check-equal? (discordian/ymd 2011 5 3) "Discoflux, in the YOLD 3177"))
;; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~FIN</
{{Out}}
<pre>Pungenday, day 47 of Confusion in the YOLD 3179</pre>
=={{header|Raku}}==
(formerly Perl 6)
{{Works with|rakudo|2015-11-04}}
<!-- Hi Grondilu! Keep up the good work! -->
<syntaxhighlight lang="raku" line>my @seasons = << Chaos Discord Confusion Bureaucracy 'The Aftermath' >>;
my @days = << Sweetmorn Boomtime Pungenday Prickle-Prickle 'Setting Orange' >>;
sub ordinal ( Int $n ) { $n ~ ( $n % 100 == 11|12|13
?? 'th' !! < th st nd rd th th th th th th >[$n % 10] ) }
sub ddate ( Str $ymd ) {
my $d = DateTime.new: "{$ymd}T00:00:00Z" or die;
my $yold = 'in the YOLD ' ~ $d.year + 1166;
my $day_of_year0 = $d.day-of-year - 1;
if $d.is-leap-year {
return "St. Tib's Day, $yold" if $d.month == 2 and $d.day == 29;
$day_of_year0-- if $day_of_year0 >= 60; # Compensate for St. Tib's Day
}
my $weekday = @days[ $day_of_year0 mod 5 ];
my $season = @seasons[ $day_of_year0 div 73 ];
my $season_day = ordinal( $day_of_year0 mod 73 + 1 );
return "$weekday, the $season_day day of $season $yold";
}
say "$_ is {.&ddate}" for < 2010-07-22 2012-02-28 2012-02-29 2012-03-01 >;
</syntaxhighlight>
{{out}}
<pre>2010-07-22 is Pungenday, the 57th day of Confusion in the YOLD 3176
2012-02-28 is Prickle-Prickle, the 59th day of Chaos in the YOLD 3178
2012-02-29 is St. Tib's Day, in the YOLD 3178
2012-03-01 is Setting Orange, the 60th day of Chaos in the YOLD 3178
</pre>
=={{header|Refal}}==
<syntaxhighlight lang="refal">$ENTRY Go {
, <Numb <Arg 1>>: s.GY
, <Numb <Arg 2>>: s.GM
, <Numb <Arg 3>>: s.GD
, <DisDate s.GY s.GM s.GD>: {
True e.Desc = <Prout e.Desc>;
False = <Prout 'Invalid input'>;
};
};
DisDate {
s.GY 2 29, <IsLeapYear s.GY>: True =
True 'St. Tib\'s day in the YOLD ' <Symb <+ 1166 s.GY>>;
s.GY s.GM s.GD, <Compare s.GM 1>: '-' = False;
s.GY s.GM s.GD, <Compare s.GM 12>: '+' = False;
s.GY s.GM s.GD, <Compare s.GD 1>: '-' = False;
s.GY s.GM s.GD, <Compare s.GD <Item s.GM <MonthLength>>>: '+' = False;
s.GY s.GM s.GD,
<+ <Item s.GM <MonthOffset>> s.GD>: s.DOY,
<Divmod <- s.DOY 1> 73>: (s.DS1) s.DD1,
<+ s.DS1 1>: s.DS,
<+ s.DD1 1>: s.DD,
<+ <Mod <- s.DOY 1> 5> 1>: s.DWD,
<Item s.DWD <Weekday>>: (e.Weekday),
<Item s.DS <Seasons>>: (e.Season),
e.Weekday ', day ' <Symb s.DD> ' of '
e.Season ' in the YOLD ' <Symb <+ 1166 s.GY>>: e.Desc,
s.DD: {
5, <Item s.DS <Holy5>>: (e.H) = True e.Desc ': celebrate ' e.H;
50, <Item s.DS <Holy50>>: (e.H) = True e.Desc ': celebrate ' e.H;
s.X = True e.Desc;
};
};
Item {
1 t.I e.X = t.I;
s.N t.I e.X = <Item <- s.N 1> e.X>;
};
IsLeapYear {
s.GY, <Mod s.GY 4>: 0 = True;
s.GY, <Mod s.GY 100>: 0 = False;
s.GY, <Mod s.GY 400>: 0 = True;
s.GY = False;
};
MonthOffset { = 0 31 59 90 120 151 181 212 243 273 304 334; };
MonthLength { = 31 28 31 30 31 30 31 31 30 31 30 31; };
Weekday { = ('Sweetmorn') ('Boomtime') ('Pungenday')
('Prickle-Prickle') ('Setting Orange'); };
Seasons { = ('Chaos') ('Discord') ('Confusion') ('Bureaucracy')
('The Aftermath'); };
Holy5 { = ('Mungday') ('Mojoday') ('Syaday') ('Zaraday') ('Maladay'); };
Holy50 { = ('Chaoflux') ('Discoflux') ('Confuflux')
('Bureflux') ('Afflux'); };</syntaxhighlight>
{{out}}
<pre>$ refgo ddate 2010 7 22
Pungenday, day 57 of Confusion in the YOLD 3176
$ refgo ddate 2012 2 28
Prickle-Prickle, day 59 of Chaos in the YOLD 3178
$ refgo ddate 2012 2 29
St. Tib's day in the YOLD 3178
$ refgo ddate 2012 3 1
Setting Orange, day 60 of Chaos in the YOLD 3178
$ refgo ddate 2010 1 5
Setting Orange, day 5 of Chaos in the YOLD 3176: celebrate Mungday
$ refgo ddate 2011 5 3
Pungenday, day 50 of Discord in the YOLD 3177: celebrate Discoflux</pre>
=={{header|REXX}}==
Line 1,659 ⟶ 4,556:
If the Gregorian date is omitted or specified as an asterisk ('''*'''), the current date is used.
<
@day.1= 'Sweetness' /*define the 1st day─of─Discordian─week*/
@day.2= 'Boomtime' /* " " 2nd " " " " */
@day.3= 'Pungenday' /* " " 3rd " " " " */
@day.4= 'Prickle-Prickle' /* " " 4th " " " " */
@day.5= 'Setting Orange' /* " " 5th " " " " */
@seas.0= "St. Tib's day," /*define the leap─day of Discordian yr.*/
@seas.1= 'Chaos' /* " 1st season─of─Discordian─year.*/
@seas.2= 'Discord' /* " 2nd " " " " */
@seas.3= 'Confusion' /* " 3rd " " " " */
@seas.4= 'Bureaucracy' /* " 4th " " " " */
@seas.5= 'The Aftermath' /* " 5th " " " " */
parse arg gM '/' gD "/" gY . /*
if gM=='' | gM=="," | gM=='*' then parse value date(
gY=left( right( date(), 4), 4 - length(Gy) )gY
/* [↓] day─of─year, leapyear
doy= date('d', gY || right(gM, 2, 0)right(gD ,2, 0), "s") - (leapyear(gY) & gM>2)
dW= doy//5;
dS= (doy-1) % 73 +
dD= doy//73; if dD==0 then dD= 73 /* " " "
if leapyear(gY) & gM==2 & gD==29 then ds= 0 /*is this St. Tib's day (leapday) ? */
if
say space(@day.dW',' @seas.dS dD"," gY + 1166) /*display
exit /*stick a fork in it, we're all done. */
/*──────────────────────────────────────────────────────────────────────────────────────*/
leapyear: procedure; parse arg y /*obtain
if y//4 \== 0 then return 0 /*Not ÷ by 4? Then
return y//100 \== 0 | y//400 == 0
<pre>
2/28/2012
Line 1,705 ⟶ 4,601:
12/31/2100
</pre>
{{out|output|text= when using the above (various) inputs:}}
<pre>
Prickle-Prickle, Chaos 59, 3178
Line 1,716 ⟶ 4,613:
</pre>
=={{header|
{{works with|Halcyon Calc|4.2.7}}
≪ '''IF''' DUP2 R→C (29,2) == '''THEN''' DROP2 0
'''ELSE'''
'''IF''' DUP 1 == '''THEN''' DROP
'''ELSE'''
{ 31 59 90 120 151 181 212 243 273 304 334 }
SWAP 1 - GET +
'''END END'''
≫ ‘'''DQtm'''’ STO
≪ 1166 + ROT ROT '''DQtm'''
'''IF''' DUP '''THEN'''
1 - { "Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange" }
OVER 5 MOD 1 + GET ", " +
SWAP { "Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath" }
OVER 73 / IP RND 1 + GET " " +
SWAP 73 MOD 1 + →STR + +
'''ELSE''' DROP "St. Tib's Day" '''END'''
", YoLD " + SWAP →STR +
≫ ‘'''DDATE'''’ STO
{{in}}
<pre>
19,1,2023 DDATE
29,2,2024 DDATE
25,12,800 DDATE
</pre>
{{out}}
<pre>
3: "Prickle-Prickle, Chaos 19, YoLD 3189"
2: "St. Tib's Day, YoLD 3190"
1: "Prickle-Prickle, The Aftermath 67, YoLD 1966"
</pre>
=={{header|Ruby}}==
<syntaxhighlight lang="ruby">require 'date'
class DiscordianDate
Line 1,742 ⟶ 4,671:
end
@season, @day = (@day_of_year-1).divmod(DAYS_PER_SEASON)
@day += 1 #← ↑ fixes of-by-one error (only visible at season changes)
@year = gregorian_date.year + YEAR_OFFSET
end
Line 1,762 ⟶ 4,692:
%Q{#{@st_tibs ? "St. Tib's Day" : "%s, %s %d" % [weekday, season, day]}, #{year} YOLD}
end
end</
Testing:
<
dd = DiscordianDate.new(*date)
puts "#{"%4d-%02d-%02d" % date} => #{dd}"
end</
{{Out}}
<pre>2012-02-28 => Prickle-Prickle, Chaos 59, 3178 YOLD
2012-02-29 => St. Tib's Day, 3178 YOLD
2012-03-01 => Setting Orange, Chaos 60, 3178 YOLD
2011-10-05 => Pungenday, Bureaucracy 59, 3177 YOLD
2015-10-19 => Boomtime, Bureaucracy 73, 3181 YOLD</pre>
=={{header|Rust}}==
'''Compiler:''' [[Rust]] (1.21.0)
[[Category:Rust]]
{{libheader|chrono}}
{{libheader|ddate}}
This example is taken in large part from the ddate crate and used with the
permission of the author.
<syntaxhighlight lang="rust">extern crate chrono;
use chrono::NaiveDate;
use std::str::FromStr;
fn main() {
let date = std::env::args().nth(1).expect("Please provide a YYYY-MM-DD date.");
println!("{} is {}", date, NaiveDate::from_str(&date).unwrap().to_poee());
}
// The necessary constants for the seasons, weekdays, and holydays.
const APOSTLES: [&str; 5] = ["Mungday", "Mojoday", "Syaday", "Zaraday", "Maladay"];
const HOLYDAYS: [&str; 5] = ["Chaoflux", "Discoflux", "Confuflux", "Bureflux", "Afflux"];
const SEASONS: [&str; 5] = ["Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"];
const WEEKDAYS: [&str; 5] = ["Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"];
// The necessary constants for the conversion.
const APOSTLE_HOLYDAY: usize = 5;
const CURSE_OF_GREYFACE: i32 = 1166;
const SEASON_DAYS: usize = 73;
const SEASON_HOLYDAY: usize = 50;
const ST_TIBS_DAY: usize = 59;
const WEEK_DAYS: usize = 5;
// This extends the `Datelike` trait of Rust's Chrono crate with a method that
// prints any Datelike type as a String.
impl<T: Datelike> DiscordianDate for T {}
pub trait DiscordianDate: Datelike {
fn to_poee(&self) -> String {
let day = self.ordinal0() as usize;
let leap = self.year() % 4 == 0 && self.year() % 100 != 0 || self.year() % 400 == 0;
let year = self.year() + CURSE_OF_GREYFACE;
if leap && day == ST_TIBS_DAY { return format!("St. Tib's Day, in the YOLD {}", year); }
let day_offset = if leap && day > ST_TIBS_DAY { day - 1 } else { day };
let day_of_season = day_offset % SEASON_DAYS + 1;
let season = SEASONS[day_offset / SEASON_DAYS];
let weekday = WEEKDAYS[day_offset % WEEK_DAYS];
let holiday = if day_of_season == APOSTLE_HOLYDAY {
format!("\nCelebrate {}", APOSTLES[day_offset / SEASON_DAYS])
} else if day_of_season == SEASON_HOLYDAY {
format!("\nCelebrate {}", HOLYDAYS[day_offset / SEASON_DAYS])
} else {
String::with_capacity(0)
};
format!("{}, the {} day of {} in the YOLD {}{}",
weekday, ordinalize(day_of_season), season, year, holiday)
}
}
/// A helper function to ordinalize a numeral.
fn ordinalize(num: usize) -> String {
let s = format!("{}", num);
let suffix = if s.ends_with('1') && !s.ends_with("11") {
"st"
} else if s.ends_with('2') && !s.ends_with("12") {
"nd"
} else if s.ends_with('3') && !s.ends_with("13") {
"rd"
} else {
"th"
};
format!("{}{}", s, suffix)
}
</syntaxhighlight>
{{Out}}<pre>$ ./ddate -1166-1-1
-1166-1-1 is Sweetmorn, the 1st day of Chaos in the YOLD 0
$ ./ddate 2000-2-28
2000-2-28 is Prickle-Prickle, the 59th day of Chaos in the YOLD 3166
$ ./ddate -4004-2-29
-4004-2-29 is St. Tib's Day, in the YOLD -2838
$ ./ddate 1066-2-28
1066-2-28 is Prickle-Prickle, the 59th day of Chaos in the YOLD 2232
$ ./ddate 1492-3-1
1492-3-1 is Setting Orange, the 60th day of Chaos in the YOLD 2658
$ ./ddate 1492-9-26
1492-9-26 is Prickle-Prickle, the 50th day of Bureaucracy in the YOLD 2658
Celebrate Bureflux
$ ./ddate 2012-10-24
2012-10-24 is Boomtime, the 5th day of The Aftermath in the YOLD 3178
Celebrate Maladay
$
</pre>
=={{header|Scala}}==
{{trans|Python}}
<syntaxhighlight lang="scala">package rosetta
import java.util.GregorianCalendar
import java.util.Calendar
object DDate extends App {
private val DISCORDIAN_SEASONS = Array("Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath")
// month from 1-12; day from 1-31
def ddate(year: Int, month: Int, day: Int): String = {
val date = new GregorianCalendar(year, month - 1, day)
val dyear = year + 1166
val isLeapYear = date.isLeapYear(year)
if (isLeapYear && month == 2 && day == 29) // 2 means February
"St. Tib's Day " + dyear + " YOLD"
else {
var dayOfYear = date.get(Calendar.DAY_OF_YEAR) - 1
if (isLeapYear && dayOfYear >= 60)
dayOfYear -= 1 // compensate for St. Tib's Day
val dday = dayOfYear % 73
val season = dayOfYear / 73
"%s %d, %d YOLD".format(DISCORDIAN_SEASONS(season), dday + 1, dyear)
}
}
if (args.length == 3)
println(ddate(args(2).toInt, args(1).toInt, args(0).toInt))
else if (args.length == 0) {
val today = Calendar.getInstance
println(ddate(today.get(Calendar.YEAR), today.get(Calendar.MONTH)+1, today.get(Calendar.DAY_OF_MONTH)))
} else
println("usage: DDate [day month year]")
}</syntaxhighlight>
Test:
<syntaxhighlight lang
Confusion 57, 3176 YOLD
scala rosetta.DDate 28 2 2012
scala rosetta.DDate 29 2 2012
St. Tib's Day 3178 YOLD
scala rosetta.DDate 1 3 2012
Chaos 60, 3178 YOLD
scala rosetta.DDate 19 10 2015
Bureaucracy 73, 3181 YOLD
</syntaxhighlight>
=={{header|Seed7}}==
<
include "time.s7i";
Line 1,857 ⟶ 4,911:
writeln("Discordian date computation works.");
end if;
end func;</
{{out}}
Line 1,863 ⟶ 4,917:
2013-05-12 as Discordian date: Boomtime, day 59 of Discord in the YOLD 3179
Discordian date computation works.
</pre>
=={{header|Sidef}}==
{{trans|Perl}}
<syntaxhighlight lang="ruby">require('Time::Piece');
var seasons = %w(Chaos Discord Confusion Bureaucracy The\ Aftermath);
var week_days = %w(Sweetmorn Boomtime Pungenday Prickle-Prickle Setting\ Orange);
func ordinal (n) {
"#{n}" + (n % 100 ~~ [11,12,13] ? 'th'
: <th st nd rd th th th th th th>[n % 10])
}
func ddate(ymd) {
var d = %s'Time::Piece'.strptime(ymd, '%Y-%m-%d');
var yold = "in the YOLD #{d.year + 1166}";
var day_of_year0 = d.day_of_year;
if (d.is_leap_year) {
return "St. Tib's Day, #{yold}" if ([d.mon, d.mday] == [2, 29]);
day_of_year0-- if (day_of_year0 >= 60); # Compensate for St. Tib's Day
}
var weekday = week_days[day_of_year0 % week_days.len];
var season = seasons[day_of_year0 / 73];
var season_day = ordinal(day_of_year0 % 73 + 1);
return "#{weekday}, the #{season_day} day of #{season} #{yold}";
}
%w(2010-07-22 2012-02-28 2012-02-29 2012-03-01).each { |ymd|
say "#{ymd} is #{ddate(ymd)}"
}</syntaxhighlight>
{{out}}
<pre>
2010-07-22 is Pungenday, the 57th day of Confusion in the YOLD 3176
2012-02-28 is Prickle-Prickle, the 59th day of Chaos in the YOLD 3178
2012-02-29 is St. Tib's Day, in the YOLD 3178
2012-03-01 is Setting Orange, the 60th day of Chaos in the YOLD 3178
</pre>
=={{header|Swift}}==
<syntaxhighlight lang="swift">import Foundation
let monthDays = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334]
let seasons = ["Chaos", "Discord", "Confusion", "Bureacracy", "The Aftermath"]
let dayNames = ["Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"]
let holyDays1 = ["Mungday", "Mojoday", "Syaday", "Zaraday", "Maladay"]
let holyDays2 = ["Chaoflux", "Discoflux", "Confuflux", "Bureflux", "Afflux"]
func discordianDate(date: Date) -> String {
let calendar = Calendar.current
let year = calendar.component(.year, from: date)
let month = calendar.component(.month, from: date)
let day = calendar.component(.day, from: date)
let discYear = year + 1166
if month == 2 && day == 29 {
return "St. Tib's Day in the YOLD \(discYear)"
}
let dayOfYear = monthDays[month - 1] + day - 1
let season = dayOfYear/73
let weekDay = dayOfYear % 5
let dayOfSeason = 1 + dayOfYear % 73
let ddate = "\(dayNames[weekDay]), day \(dayOfSeason) of \(seasons[season]) in the YOLD \(discYear)"
switch (dayOfSeason) {
case 5:
return ddate + ". Celebrate \(holyDays1[season])!"
case 50:
return ddate + ". Celebrate \(holyDays2[season])!"
default:
return ddate
}
}
func showDiscordianDate(year: Int, month: Int, day: Int) {
let calendar = Calendar.current
let date = calendar.date(from: DateComponents(year: year, month: month, day: day))!
let ddate = discordianDate(date: date)
let format = DateFormatter()
format.dateFormat = "yyyy-MM-dd"
print("\(format.string(from: date)): \(ddate)")
}
showDiscordianDate(year: 2022, month: 1, day: 20)
showDiscordianDate(year: 2020, month: 9, day: 21)
showDiscordianDate(year: 2020, month: 2, day: 29)
showDiscordianDate(year: 2019, month: 7, day: 15)
showDiscordianDate(year: 2025, month: 3, day: 19)
showDiscordianDate(year: 2017, month: 12, day: 8)</syntaxhighlight>
{{out}}
<pre>
2022-01-20: Setting Orange, day 20 of Chaos in the YOLD 3188
2020-09-21: Prickle-Prickle, day 45 of Bureacracy in the YOLD 3186
2020-02-29: St. Tib's Day in the YOLD 3186
2019-07-15: Sweetmorn, day 50 of Confusion in the YOLD 3185. Celebrate Confuflux!
2025-03-19: Pungenday, day 5 of Discord in the YOLD 3191. Celebrate Mojoday!
2017-12-08: Boomtime, day 50 of The Aftermath in the YOLD 3183. Celebrate Afflux!
</pre>
=={{header|Tcl}}==
<
proc disdate {year month day} {
# Get the day of the year
Line 1,888 ⟶ 5,042:
incr year 1166
return "$season $dos, $year YOLD"
}</
Demonstrating:
<
puts [disdate 2012 2 28]
puts [disdate 2012 2 29]
puts [disdate 2012 3 1]</
{{Out}}
<pre>
Line 1,900 ⟶ 5,054:
St. Tib's Day, 3178 YOLD
Chaos 60, 3178 YOLD
</pre>
=={{header|Wren}}==
{{trans|C#}}
{{libheader|Wren-date}}
{{libheader|Wren-fmt}}
<syntaxhighlight lang="wren">import "./date" for Date
import "./fmt" for Fmt
var seasons = ["Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"]
var weekdays = ["Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"]
var apostles = ["Mungday", "Mojoday", "Syaday", "Zaraday", "Maladay"]
var holidays = ["Chaoflux", "Discoflux", "Confuflux", "Bureflux", "Afflux"]
var discordian = Fn.new { |date|
var y = date.year
var yold = " in the YOLD %(y + 1166)."
var doy = date.dayOfYear
if (Date.isLeapYear(y)) {
if (doy == 60) return "St. Tib's Day" + yold
if (doy > 60) doy = doy - 1
}
doy = doy - 1
var seasonDay = doy % 73 + 1
var seasonNr = (doy/73).floor
var weekdayNr = doy % 5
var holyday = ""
if (seasonDay == 5) holyday = " Celebrate %(apostles[seasonNr])!"
if (seasonDay == 50) holyday = " Celebrate %(holidays[seasonNr])!"
var season = seasons[seasonNr]
var dow = weekdays[weekdayNr]
return Fmt.swrite("$s, day $s of $s$s$s", dow, seasonDay, season, yold, holyday)
}
var dates = [
"2010-01-01",
"2010-01-05",
"2011-02-19",
"2012-02-28",
"2012-02-29",
"2012-03-01",
"2013-03-19",
"2014-05-03",
"2015-05-31",
"2016-06-22",
"2016-07-15",
"2017-08-12",
"2018-09-19",
"2018-09-26",
"2019-10-24",
"2020-12-08",
"2020-12-31"
]
for (date in dates) {
var dt = Date.parse(date)
System.print("%(date) = %(discordian.call(dt))")
}</syntaxhighlight>
{{out}}
<pre>
2010-01-01 = Sweetmorn, day 1 of Chaos in the YOLD 3176.
2010-01-05 = Setting Orange, day 5 of Chaos in the YOLD 3176. Celebrate Mungday!
2011-02-19 = Setting Orange, day 50 of Chaos in the YOLD 3177. Celebrate Chaoflux!
2012-02-28 = Prickle-Prickle, day 59 of Chaos in the YOLD 3178.
2012-02-29 = St. Tib's Day in the YOLD 3178.
2012-03-01 = Setting Orange, day 60 of Chaos in the YOLD 3178.
2013-03-19 = Pungenday, day 5 of Discord in the YOLD 3179. Celebrate Mojoday!
2014-05-03 = Pungenday, day 50 of Discord in the YOLD 3180. Celebrate Discoflux!
2015-05-31 = Sweetmorn, day 5 of Confusion in the YOLD 3181. Celebrate Syaday!
2016-06-22 = Pungenday, day 27 of Confusion in the YOLD 3182.
2016-07-15 = Sweetmorn, day 50 of Confusion in the YOLD 3182. Celebrate Confuflux!
2017-08-12 = Prickle-Prickle, day 5 of Bureaucracy in the YOLD 3183. Celebrate Zaraday!
2018-09-19 = Boomtime, day 43 of Bureaucracy in the YOLD 3184.
2018-09-26 = Prickle-Prickle, day 50 of Bureaucracy in the YOLD 3184. Celebrate Bureflux!
2019-10-24 = Boomtime, day 5 of The Aftermath in the YOLD 3185. Celebrate Maladay!
2020-12-08 = Boomtime, day 50 of The Aftermath in the YOLD 3186. Celebrate Afflux!
2020-12-31 = Setting Orange, day 73 of The Aftermath in the YOLD 3186.
</pre>
=={{header|zkl}}==
{{trans|D}}
<syntaxhighlight lang="zkl">fcn discordianDate(y,m,d){
var [const]
seasons=T("Chaos","Discord","Confusion","Bureaucracy","The Aftermath"),
weekday=T("Sweetmorn","Boomtime","Pungenday","Prickle-Prickle","Setting Orange"),
apostle=T("Mungday","Mojoday","Syaday","Zaraday","Maladay"),
holiday=T("Chaoflux","Discoflux","Confuflux","Bureflux","Afflux"];
dYear,isLeapYear := y + 1166, Time.Date.isLeapYear(y);
if(isLeapYear and m==2 and d==29)
return("St. Tib's Day, in the YOLD " + dYear);
doy:=Time.Date.nthDayInYear(y,m,d);
if(isLeapYear and doy>=60) doy-=1;
dsDay:=(if(doy%73==0) 73 else doy%73); // Season day.
if(dsDay==5) return(String(apostle[doy/73],", in the YOLD ",dYear));
if(dsDay==50) return(String(holiday[doy/73],", in the YOLD ",dYear));
dSeas:=seasons[(if(doy%73==0) doy-1 else doy)/73];
dWday:=weekday[(doy - 1)%5];
"%s, day %s of %s in the YOLD %s".fmt(dWday,dsDay,dSeas,dYear);
}</syntaxhighlight>
<syntaxhighlight lang="zkl">foreach y,m,d in (T(T(2010,7,22), T(2012,2,28), T(2012,2,29), T(2012,3,1),
T(2010,1, 5), T(2011,5, 3))){
"%d-%02d-%02d is -->%s".fmt(y,m,d,discordianDate(y,m,d)).println();
}</syntaxhighlight>
{{out}}
<pre>
2010-07-22 is -->Pungenday, day 57 of Confusion in the YOLD 3176
2012-02-28 is -->Prickle-Prickle, day 59 of Chaos in the YOLD 3178
2012-02-29 is -->St. Tib's Day, in the YOLD 3178
2012-03-01 is -->Setting Orange, day 60 of Chaos in the YOLD 3178
2010-01-05 is -->Mungday, in the YOLD 3176
2011-05-03 is -->Discoflux, in the YOLD 3177
</pre>
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