⚠️ Warning: This is a draft ⚠️
This means it might contain formatting issues, incorrect code, conceptual problems, or other severe issues.
If you want to help to improve and eventually enable this page, please fork RosettaGit's repository and open a merge request on GitHub.
{{task|Date and time}}
;Task: Convert a given date from the [[wp:Gregorian calendar|Gregorian calendar]] to the [[wp:Discordian calendar|Discordian calendar]].
Ada
discordian.adb:
with Ada.Calendar.Arithmetic;
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
use Ada.Calendar.Arithmetic;
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;
Leap_Year := 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;
elsif Number_Days = 59 then
To.Is_Tibs_Day := True;
end if;
end if;
To.Day := Day_Number (Number_Days mod 73 + 1);
case Number_Days / 73 is
when 0 => To.Season := Chaos;
when 1 => To.Season := Discord;
when 2 => To.Season := Confusion;
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 ("St. Tib's Day");
else
UStr_IO.Put (Week_Day_To_Str(Item.Week_Day));
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;
Convert (From => Test_Day, To => Test_DDay);
Put (Test_DDay);
end if;
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));
exception
when Constraint_Error =>
Ada.Text_IO.Put("ERROR: Invalid Argument : '" & Argument(Arg) & "'");
raise;
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;
{{Out}}
$ ./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
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] ...
# examples:
# GAWK -f DDATE.AWK today
# GAWK -f DDATE.AWK 20110722 one date
# GAWK -f DDATE.AWK 20110722 20120229 two dates
# GAWK -f DDATE.AWK 2012 yearly calendar
BEGIN {
split("Chaos,Discord,Confusion,Bureaucracy,The Aftermath",season_arr,",")
split("Sweetmorn,Boomtime,Pungenday,Prickle-Prickle,Setting Orange",weekday_arr,",")
split("Mungday,Mojoday,Syaday,Zaraday,Maladay",apostle_holyday_arr,",")
split("Chaoflux,Discoflux,Confuflux,Bureflux,Afflux",season_holyday_arr,",")
split("31,28,31,30,31,30,31,31,30,31,30,31",days_in_month,",") # days per month in non leap year
split("0 31 59 90 120 151 181 212 243 273 304 334",rdt," ") # relative day table
mmm = "JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC"
# 1 2 3 4 5 6 7 8 9 10 11 12
if (ARGV[1] == "") { # use current date
ARGV[ARGC++] = strftime("%Y%m%d") # GAWK only
# ARGV[ARGC++] = dos_date() # any AWK
# timetab(arr); ARGV[ARGC++] = sprintf("%04d%02d%02d",arr["YEAR"],arr["MONTH"],arr["DAY"]) # TAWK only
}
for (argno=1; argno<=ARGC-1; argno++) { # validate command line arguments
print("")
x = toupper(ARGV[argno])
if (x ~ /^[0-9][0-9][0-9][0-9][01][0-9][0-3][0-9]$/) { # YYYYMMDD
main(x)
}
else if (x ~ /^[0-9][0-9][0-9][0-9]-[01][0-9]-[0-3][0-9]$/) { # YYYY-MM-DD
gsub(/-/,"",x)
main(x)
}
else if (x ~ /^[01][0-9]-[0-3][0-9]-[0-9][0-9][0-9][0-9]$/) { # MM-DD-YYYY
main(substr(x,7,4) substr(x,1,2) substr(x,4,2))
}
else if (x ~ /^[0-3][0-9](JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)[0-9][0-9][0-9][0-9]$/) { # DDMMMYYYY
main(sprintf("%04d%02d%02d",substr(x,6,4),int((match(mmm,substr(x,3,3))/4)+1),substr(x,1,2)))
}
else if (x ~ /^[0-9][0-9][0-9][0-9]$/) { # YYYY
yearly_calendar(x)
}
else {
error("begin")
}
}
if (errors == 0) { exit(0) } else { exit(1) }
}
function main(x, d,dyear,m,season_day,season_nbr,text,weekday_nbr,y,year_day) {
y = substr(x,1,4) + 0
m = substr(x,5,2) + 0
d = substr(x,7,2) + 0
days_in_month[2] = (leap_year(y) == 1) ? 29 : 28
if (m < 1 || m > 12 || d < 1 || d > days_in_month[m]+0) {
error("main")
return
}
year_day = rdt[m] + d
dyear = y + 1166 # Discordian year
season_nbr = int((year_day - 1 ) / 73) + 1
season_day = ((year_day - 1) % 73) + 1
weekday_nbr = ((year_day - 1 ) % 5) + 1
if (season_day == 5) {
text = ", " apostle_holyday_arr[season_nbr]
}
else if (season_day == 50) {
text = ", " season_holyday_arr[season_nbr]
}
if (leap_year(y) && m == 2 && d == 29) {
printf("%04d-%02d-%02d is St. Tib's day, Year of Our Lady of Discord %s\n",y,m,d,dyear)
}
else {
printf("%04d-%02d-%02d is %s, %s %s, Year of Our Lady of Discord %s%s\n",
y,m,d,weekday_arr[weekday_nbr],season_arr[season_nbr],season_day,dyear,text)
}
}
function leap_year(y) { # leap year: 0=no, 1=yes
return (y % 400 == 0 || (y % 4 == 0 && y % 100)) ? 1 : 0
}
function yearly_calendar(y, d,m) {
days_in_month[2] = (leap_year(y) == 1) ? 29 : 28
for (m=1; m<=12; m++) {
for (d=1; d<=days_in_month[m]; d++) {
main(sprintf("%04d%02d%02d",y,m,d))
}
}
}
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) {
printf("error: argument %d is invalid, %s, in %s\n",argno,ARGV[argno],x)
errors++
}
{{Out}}
GAWK -f DDATE.AWK
2011-08-22 is Prickle-Prickle, Bureaucracy 15, Year of Our Lady of Discord 3177
GAWK -f DDATE.AWK 20110722 20120229
2011-07-22 is Pungenday, Confusion 57, Year of Our Lady of Discord 3177
2012-02-29 is St. Tib's day, Year of Our Lady of Discord 3178
BASIC
{{works with|FreeBASIC}} {{trans|PowerBASIC}}
#INCLUDE "datetime.bi"
DECLARE FUNCTION julian(AS DOUBLE) AS INTEGER
SeasonNames:
DATA "Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"
Weekdays:
DATA "Setting Orange", "Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle"
DaysPreceding1stOfMonth:
' jan feb mar apr may jun jul aug sep oct nov dec
DATA 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
DIM dyear AS INTEGER, dseason AS STRING, dday AS INTEGER, dweekday AS STRING
DIM tmpdate AS DOUBLE, jday AS INTEGER, result AS STRING
DIM L0 AS INTEGER
IF LEN(COMMAND$) THEN
tmpdate = DATEVALUE(COMMAND$)
ELSE
tmpdate = FIX(NOW())
END IF
dyear = YEAR(tmpdate) + 1166
IF (2 = MONTH(tmpdate)) AND (29 = DAY(tmpdate)) THEN
result = "Saint Tib's Day, " & STR$(dyear) & " YOLD"
ELSE
jday = julian(tmpdate)
RESTORE SeasonNames
FOR L0 = 1 TO ((jday - 1) \ 73) + 1
READ dseason
NEXT
dday = (jday MOD 73)
IF 0 = dday THEN dday = 73
RESTORE Weekdays
FOR L0 = 1 TO (jday MOD 5) + 1
READ dweekday
NEXT
result = dweekday & ", " & dseason & " " & TRIM$(STR$(dday)) & ", " & TRIM$(STR$(dyear)) & " YOLD"
END IF
? result
END
FUNCTION julian(d AS DOUBLE) AS INTEGER
'doesn't account for leap years (not needed for ddate)
DIM tmp AS INTEGER, L1 AS INTEGER
RESTORE DaysPreceding1stOfMonth
FOR L1 = 1 TO MONTH(d)
READ tmp
NEXT
FUNCTION = tmp + DAY(d)
END FUNCTION
{{out}}
"Discordian date.exe" 19-10-2015
Boomtime, Bureaucracy 73, 3181 YOLD
Batch File
{{works with|Windows XP Service Pack 3}}
@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
{{out}}
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:\>
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).
BBC BASIC
{{works with|BBC BASIC for Windows}}
INSTALL @lib$+"DATELIB"
PRINT "01/01/2011 -> " FNdiscordian("01/01/2011")
PRINT "05/01/2011 -> " FNdiscordian("05/01/2011")
PRINT "28/02/2011 -> " FNdiscordian("28/02/2011")
PRINT "01/03/2011 -> " FNdiscordian("01/03/2011")
PRINT "22/07/2011 -> " FNdiscordian("22/07/2011")
PRINT "31/12/2011 -> " FNdiscordian("31/12/2011")
PRINT "01/01/2012 -> " FNdiscordian("01/01/2012")
PRINT "05/01/2012 -> " FNdiscordian("05/01/2012")
PRINT "28/02/2012 -> " FNdiscordian("28/02/2012")
PRINT "29/02/2012 -> " FNdiscordian("29/02/2012")
PRINT "01/03/2012 -> " FNdiscordian("01/03/2012")
PRINT "22/07/2012 -> " FNdiscordian("22/07/2012")
PRINT "31/12/2012 -> " FNdiscordian("31/12/2012")
END
DEF FNdiscordian(date$)
LOCAL Season$(), Weekday$(), mjd%, year%, day%
DIM Season$(4), Weekday$(4)
Season$() = "Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"
Weekday$() = "Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"
mjd% = FN_readdate(date$, "dmy", 2000)
year% = FN_year(mjd%)
IF FN_month(mjd%)=2 AND FN_day(mjd%)=29 THEN
= "St. Tib's Day, YOLD " + STR$(year% + 1166)
ENDIF
IF FN_month(mjd%) < 3 THEN
day% = mjd% - FN_mjd(1, 1, year%)
ELSE
day% = mjd% - FN_mjd(1, 3, year%) + 59
ENDIF
= Weekday$(day% MOD 5) + ", " + STR$(day% MOD 73 + 1) + " " + \
\ Season$(day% DIV 73) + ", YOLD " + STR$(year% + 1166)
{{Out}}
01/01/2011 -> Sweetmorn, 1 Chaos, YOLD 3177
05/01/2011 -> Setting Orange, 5 Chaos, YOLD 3177
28/02/2011 -> Prickle-Prickle, 59 Chaos, YOLD 3177
01/03/2011 -> Setting Orange, 60 Chaos, YOLD 3177
22/07/2011 -> Pungenday, 57 Confusion, YOLD 3177
31/12/2011 -> Setting Orange, 73 The Aftermath, YOLD 3177
01/01/2012 -> Sweetmorn, 1 Chaos, YOLD 3178
05/01/2012 -> Setting Orange, 5 Chaos, YOLD 3178
28/02/2012 -> Prickle-Prickle, 59 Chaos, YOLD 3178
29/02/2012 -> St. Tib's Day, YOLD 3178
01/03/2012 -> Setting Orange, 60 Chaos, YOLD 3178
22/07/2012 -> Pungenday, 57 Confusion, YOLD 3178
31/12/2012 -> Setting Orange, 73 The Aftermath, YOLD 3178
Befunge
Reads the date to convert from stdin as three separate numeric inputs (year, month, and day).
0" :raeY">:#,_&>\" :htnoM">:#,_&>04p" :yaD">:#,_$&>55+,1-:47*v
v"f I".+1%,,,,"Day I":$_:#<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)
Year: 2015
Month: 10
Day: 19
Day 73 of Bureaucracy, in the YOLD 3181
Year: 2012
Month: 2
Day: 29
St. Tib's Day, in the YOLD 3178
Year: 2010
Month: 7
Day: 22
Day 57 of Confusion, in the YOLD 3176
C
For the source code of ddate in util-linux package, see [[http://jubal.westnet.com/hyperdiscordia/ddate.html]].
#include <iostream> #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" :\ (x) == 2 ? "Confusion" :\ (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 ){ sprintf( result, "St. Tib's Day, YOLD %d", dyear ); return result; } else if( d >= 60 ){ -- d; } } 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 ]; if( m == 3 && leap_year( y ) ){ ++ d; } } return d; } int main( int argc, char * argv[] ){ time_t now; struct tm * now_time; int year, doy; if( argc == 1 ){ now = time( NULL ); now_time = localtime( &now ); year = now_time->tm_year + 1900; doy = now_time->tm_yday + 1; } else if( argc == 4 ){ 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:
$ ./ddate 2015 10 19
Boomtime, Bureaucracy 73, YOLD 3181
$ ./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
C++
#include <iostream> #include <algorithm> #include <vector> #include <sstream> #include <iterator> using namespace std; class myTuple { public: void set( int a, int b, string c ) { t.first.first = a; t.first.second = b; t.second = c; } bool operator == ( pair<int, int> p ) { return p.first == t.first.first && p.second == t.first.second; } string second() { return t.second; } private: pair<pair<int, int>, string> t; }; class discordian { public: discordian() { myTuple t; t.set( 5, 1, "Mungday" ); holyday.push_back( t ); t.set( 19, 2, "Chaoflux" ); holyday.push_back( t ); t.set( 29, 2, "St. Tib's Day" ); holyday.push_back( t ); t.set( 19, 3, "Mojoday" ); holyday.push_back( t ); t.set( 3, 5, "Discoflux" ); holyday.push_back( t ); t.set( 31, 5, "Syaday" ); holyday.push_back( t ); t.set( 15, 7, "Confuflux" ); holyday.push_back( t ); t.set( 12, 8, "Zaraday" ); holyday.push_back( t ); t.set( 26, 9, "Bureflux" ); holyday.push_back( t ); t.set( 24, 10, "Maladay" ); holyday.push_back( t ); t.set( 8, 12, "Afflux" ); holyday.push_back( t ); seasons.push_back( "Chaos" ); seasons.push_back( "Discord" ); seasons.push_back( "Confusion" ); seasons.push_back( "Bureaucracy" ); seasons.push_back( "The Aftermath" ); wdays.push_back( "Setting Orange" ); wdays.push_back( "Sweetmorn" ); wdays.push_back( "Boomtime" ); wdays.push_back( "Pungenday" ); wdays.push_back( "Prickle-Prickle" ); } void convert( int d, int m, int y ) { if( d == 0 || m == 0 || m > 12 || d > getMaxDay( m, y ) ) { cout << "\nThis is not a date!"; return; } vector<myTuple>::iterator f = find( holyday.begin(), holyday.end(), make_pair( d, m ) ); int dd = d, day, wday, sea, yr = y + 1166; for( int x = 1; x < m; x++ ) dd += getMaxDay( x, 1 ); day = dd % 73; if( !day ) day = 73; wday = dd % 5; sea = ( dd - 1 ) / 73; if( d == 29 && m == 2 && isLeap( y ) ) { cout << ( *f ).second() << " " << seasons[sea] << ", Year of Our Lady of Discord " << yr; return; } cout << wdays[wday] << " " << seasons[sea] << " " << day; if( day > 10 && day < 14 ) cout << "th"; else switch( day % 10) { case 1: cout << "st"; break; case 2: cout << "nd"; break; case 3: cout << "rd"; break; default: cout << "th"; } cout << ", Year of Our Lady of Discord " << yr; if( f != holyday.end() ) cout << " - " << ( *f ).second(); } private: int getMaxDay( int m, int y ) { int dd[] = { 0, 31, isLeap( y ) ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; return dd[m]; } bool isLeap( int y ) { bool l = false; if( !( y % 4 ) ) { if( y % 100 ) l = true; else if( !( y % 400 ) ) l = true; } return l; } vector<myTuple> holyday; vector<string> seasons, wdays; }; int main( int argc, char* argv[] ) { string date; discordian disc; while( true ) { cout << "Enter a date (dd mm yyyy) or 0 to quit: "; getline( cin, date ); if( date == "0" ) break; if( date.length() == 10 ) { istringstream iss( date ); vector<string> vc; copy( istream_iterator<string>( iss ), istream_iterator<string>(), back_inserter<vector<string> >( vc ) ); disc.convert( atoi( vc[0].c_str() ), atoi( vc[1].c_str() ), atoi( vc[2].c_str() ) ); cout << "\n\n\n"; } else cout << "\nIs this a date?!\n\n"; } return 0; }
{{out}}
Enter a date (dd mm yyyy) or 0 to quit: 19 10 2015
Boomtime, Bureaucracy 73rd, Year of Our Lady of Discord 3181
Enter a date (dd mm yyyy) or 0 to quit: 08 06 2015
Prickle-Prickle, Confusion 13th, Year of Our Lady of Discord 3181
Enter a date (dd mm yyyy) or 0 to quit: 23 06 2015
Prickle-Prickle, Confusion 28th, Year of Our Lady of Discord 3181
Enter a date (dd mm yyyy) or 0 to quit: 29 02 2016
St. Tib's Day, Year of Our Lady of Discord 3182
Enter a date (dd mm yyyy) or 0 to quit: 05 01 2016
Setting Orange, Chaos 5th, Year of Our Lady of Discord 3182 - Mungday
Enter a date (dd mm yyyy) or 0 to quit: 26 08 2016
Pungenday, Bureaucracy 19th, Year of Our Lady of Discord 3182
C#
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()}"); } } }
{{out}}
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.
Clojure
(require '[clj-time.core :as tc]) (def seasons ["Chaos" "Discord" "Confusion" "Bureaucracy" "The Aftermath"]) (def weekdays ["Sweetmorn" "Boomtime" "Pungenday" "Prickle-Prickle" "Setting Orange"]) (def year-offset 1166) (defn leap-year? [year] (= 29 (tc/number-of-days-in-the-month year 2))) (defn discordian-day [day leap] (let [offset (if (and leap (>= day 59)) 1 0) day-off (- day offset) day-num (inc (rem day-off 73)) season (seasons (quot day-off 73)) weekday (weekdays (mod day-off 5))] (if (and (= day 59) (= offset 1)) "St. Tib's Day" (str weekday ", " season " " day-num)))) (defn discordian-date [year month day] (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}}
user=> (discordian-date 2010 7 22)
"Pungenday, Confusion 57, YOLD 3176"
user=> (discordian-date 2012 2 28)
"Prickle-Prickle, Chaos 59, YOLD 3178"
user=> (discordian-date 2012 2 29)
"St. Tib's Day, YOLD 3178"
user=> (discordian-date 2012 3 1)
"Setting Orange, Chaos 60, YOLD 3178"
user=> (discordian-date 2012 12 31)
"Setting Orange, The Aftermath 73, YOLD 3178"
user=> (discordian-date 2013 12 31)
"Setting Orange, The Aftermath 73, YOLD 3179"
D
import std.stdio, std.datetime, std.conv, std.string; immutable 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"]; 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 == "Pungenday, day 57 of Confusion in the YOLD 3176"); assert(Date(2012, 2, 28).discordianDate == "Prickle-Prickle, day 59 of Chaos in the YOLD 3178"); assert(Date(2012, 2, 29).discordianDate == "St. Tib's Day, in the YOLD 3178"); assert(Date(2012, 3, 1).discordianDate == "Setting Orange, day 60 of Chaos in the YOLD 3178"); assert(Date(2010, 1, 5).discordianDate == "Mungday, in the YOLD 3176"); assert(Date(2011, 5, 3).discordianDate == "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); } } }
{{out}}
$ ./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
Euphoria
{{trans|D}}
function isLeapYear(integer year)
return remainder(year,4)=0 and remainder(year,100)!=0 or remainder(year,400)=0
end function
constant YEAR = 1, MONTH = 2, DAY = 3, DAY_OF_YEAR = 8
constant month_lengths = {31,28,31,30,31,30,31,31,30,31,30,31}
function dayOfYear(sequence Date)
integer d
if length(Date) = DAY_OF_YEAR then
d = Date[DAY_OF_YEAR]
else
d = Date[DAY]
for i = Date[MONTH]-1 to 1 by -1 do
d += month_lengths[i]
if i = 2 and isLeapYear(Date[YEAR]) then
d += 1
end if
end for
end if
return d
end function
constant seasons = {"Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"}
constant weekday = {"Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"}
constant apostle = {"Mungday", "Mojoday", "Syaday", "Zaraday", "Maladay"}
constant holiday = {"Chaoflux", "Discoflux", "Confuflux", "Bureflux", "Afflux"}
function discordianDate(sequence Date)
sequence dyear, dseas, dwday
integer leap, doy, dsday
dyear = sprintf("%d",Date[YEAR]+1166)
leap = isLeapYear(Date[YEAR])
if leap and Date[MONTH] = 2 and Date[DAY] = 29 then
return "St. Tib's Day, in the YOLD " & dyear
end if
doy = dayOfYear(Date)
if leap and doy >= 60 then
doy -= 1
end if
dsday = remainder(doy,73)
if dsday = 5 then
return apostle[doy/73+1] & ", in the YOLD " & dyear
elsif dsday = 50 then
return holiday[doy/73+1] & ", in the YOLD " & dyear
end if
dseas = seasons[doy/73+1]
dwday = weekday[remainder(doy-1,5)+1]
return sprintf("%s, day %d of %s in the YOLD %s", {dwday, dsday, dseas, dyear})
end function
sequence today
today = date()
today[YEAR] += 1900
puts(1, discordianDate(today))
=={{header|F Sharp|F#}}==
open System let seasons = [| "Chaos"; "Discord"; "Confusion"; "Bureaucracy"; "The Aftermath" |] let ddate (date:DateTime) = let dyear = date.Year + 1166 let leapYear = DateTime.IsLeapYear(date.Year) if leapYear && date.Month = 2 && date.Day = 29 then sprintf "St. Tib's Day, %i YOLD" dyear 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
{{out}}
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
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
compiled as ddate.
useage ./ddate
./ddate dd mm yyyy
{{out}}
./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
Go
A package modeled after the time package in the Go standard library
package ddate import ( "strconv" "strings" "time" ) // Predefined formats for DiscDate.Format const ( DefaultFmt = "Pungenday, Discord 5, 3131 YOLD" OldFmt = `Today is Pungenday, the 5th day of Discord in the YOLD 3131 Celebrate Mojoday` ) // Formats passed to DiscDate.Format are protypes for formated dates. // Format replaces occurrences of prototype elements (the constant strings // listed here) with values corresponding to the date being formatted. // If the date is St. Tib's Day, the string from the first date element // through the last is replaced with "St. Tib's Day". const ( protoLongSeason = "Discord" protoShortSeason = "Dsc" protoLongDay = "Pungenday" protoShortDay = "PD" protoOrdDay = "5" protoCardDay = "5th" protoHolyday = "Mojoday" protoYear = "3131" ) var ( longDay = []string{"Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"} shortDay = []string{"SM", "BT", "PD", "PP", "SO"} longSeason = []string{ "Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"} shortSeason = []string{"Chs", "Dsc", "Cfn", "Bcy", "Afm"} holyday = [][]string{{"Mungday", "Chaoflux"}, {"Mojoday", "Discoflux"}, {"Syaday", "Confuflux"}, {"Zaraday", "Bureflux"}, {"Maladay", "Afflux"}} ) type DiscDate struct { StTibs bool Dayy int // zero based day of year, meaningless if StTibs is true Year int // gregorian + 1166 } func New(eris time.Time) DiscDate { t := time.Date(eris.Year(), 1, 1, eris.Hour(), eris.Minute(), eris.Second(), eris.Nanosecond(), eris.Location()) bob := int(eris.Sub(t).Hours()) / 24 raw := eris.Year() hastur := DiscDate{Year: raw + 1166} if raw%4 == 0 && (raw%100 != 0 || raw%400 == 0) { if bob > 59 { bob-- } else if bob == 59 { hastur.StTibs = true return hastur } } hastur.Dayy = bob return hastur } func (dd DiscDate) Format(f string) (r string) { var st, snarf string var dateElement bool f6 := func(proto, wibble string) { if !dateElement { snarf = r dateElement = true } if st > "" { r = "" } else { r += wibble } f = f[len(proto):] } f4 := func(proto, wibble string) { if dd.StTibs { st = "St. Tib's Day" } f6(proto, wibble) } season, day := dd.Dayy/73, dd.Dayy%73 for f > "" { switch { case strings.HasPrefix(f, protoLongDay): f4(protoLongDay, longDay[dd.Dayy%5]) case strings.HasPrefix(f, protoShortDay): f4(protoShortDay, shortDay[dd.Dayy%5]) case strings.HasPrefix(f, protoCardDay): funkychickens := "th" if day/10 != 1 { switch day % 10 { case 0: funkychickens = "st" case 1: funkychickens = "nd" case 2: funkychickens = "rd" } } f4(protoCardDay, strconv.Itoa(day+1)+funkychickens) case strings.HasPrefix(f, protoOrdDay): f4(protoOrdDay, strconv.Itoa(day+1)) case strings.HasPrefix(f, protoLongSeason): f6(protoLongSeason, longSeason[season]) case strings.HasPrefix(f, protoShortSeason): f6(protoShortSeason, shortSeason[season]) case strings.HasPrefix(f, protoHolyday): if day == 4 { r += holyday[season][0] } else if day == 49 { r += holyday[season][1] } f = f[len(protoHolyday):] case strings.HasPrefix(f, protoYear): r += strconv.Itoa(dd.Year) f = f[4:] default: r += f[:1] f = f[1:] } } if st > "" { r = snarf + st + r } return }
Example program using above package
package main import ( "ddate" "fmt" "os" "strings" "time" ) func main() { pi := 1 fnord := ddate.DefaultFmt if len(os.Args) > 1 { switch os.Args[1][0] { case '+': pi++ fnord = os.Args[1][1:] case '-': usage() } } var eris time.Time switch len(os.Args) - pi { case 0: eris = time.Now() case 3: var err error eris, err = time.Parse("2 1 2006", strings.Join(os.Args[pi:pi+3], " ")) if err != nil { fmt.Println(err) usage() } default: usage() } fmt.Println(ddate.New(eris).Format(fnord)) } func usage() { fmt.Fprintf(os.Stderr, "usage: %s [+format] [day month year]\n", os.Args[0]) os.Exit(1) }
{{Out}}
> ddate
Pungenday, Confusion 62, 3177 YOLD
> ddate 29 2 2012
St. Tib's Day, 3178 YOLD
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
Examples:
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)]
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
In GHCi we can also execute shell commands.
- Using Linux utility ddate
*Main> :! ddate
Today is Setting Orange, the 26th day of Bureaucracy in the YOLD 3176
*Main> :! ddate 29 2 2012
Sint Tibs
*Main> :! ddate 2 9 2010
Setting Orange, Bureaucracy 26, 3176 YOLD
=={{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.
link printf
procedure main()
Demo(2010,1,1)
Demo(2010,7,22)
Demo(2012,2,28)
Demo(2012,2,29)
Demo(2012,3,1)
Demo(2010,1,5)
Demo(2011,5,3)
Demo(2012,2,28)
Demo(2012,2,29)
Demo(2012,3,1)
Demo(2010,7,22)
Demo(2012,12,22)
end
procedure Demo(y,m,d) #: demo display
printf("%i-%i-%i = %s\n",y,m,d,DiscordianDateString(DiscordianDate(y,m,d)))
end
record DiscordianDateRecord(year,yday,season,sday,holiday)
procedure DiscordianDate(year,month,day) #: Convert normal date to Discordian
static cal
initial cal := [31,28,31,30,31,30,31,31,30,31,30,31]
ddate := DiscordianDateRecord(year+1166)
every (ddate.yday := day - 1) +:= cal[1 to month-1] # zero origin
ddate.sday := ddate.yday
if ddate.year % 4 = 2 & month = 2 & day = 29 then
ddate.holiday := 1 # Note: st tibs is outside of weekdays
else {
ddate.season := (ddate.yday / 73) + 1
ddate.sday := (ddate.yday % 73) + 1
ddate.holiday := 1 + ddate.season * case ddate.sday of { 5 : 1; 50 : 2}
}
return ddate
end
procedure DiscordianDateString(ddate) #: format a Discordian Date String
static days,seasons,holidays
initial {
days := ["Sweetmorn","Boomtime","Pungenday","Prickle-Prickle","Setting Orange"]
seasons := ["Chaos","Discord","Confusion","Bureaucracy","The Aftermath"]
holidays := ["St. Tib's Day","Mungday","Chaoflux","Mojoday","Discoflux",
"Syaday","Confuflux","Zaraday","Bureflux","Maladay","Afflux"]
}
return (( holidays[\ddate.holiday] || "," ) |
( days[1+ddate.yday%5] || ", day " ||
ddate.sday || " of " || seasons[ddate.season])) ||
" in the YOLD " || ddate.year
end
{{Out}}
2010-1-1 = Sweetmorn, day 1 of Chaos in the YOLD 3176
2010-7-22 = Pungenday, day 57 of Confusion in the YOLD 3176
2012-2-28 = Prickle-Prickle, day 59 of Chaos in the YOLD 3178
2012-2-29 = St. Tib's Day, in the YOLD 3178
2012-3-1 = Setting Orange, day 60 of Chaos in the YOLD 3178
2010-1-5 = Mungday, in the YOLD 3176
2011-5-3 = Discoflux, in the YOLD 3177
2012-2-28 = Prickle-Prickle, day 59 of Chaos in the YOLD 3178
2012-2-29 = St. Tib's Day, in the YOLD 3178
2012-3-1 = Setting Orange, day 60 of Chaos in the YOLD 3178
2010-7-22 = Pungenday, day 57 of Confusion in the YOLD 3176
2012-12-22 = Sweetmorn, day 64 of The Aftermath in the YOLD 3178
J
require'dates'
leap=: _1j1 * 0 -/@:= 4 100 400 |/ {.@]
bs=: ((#:{.) + 0 j. *@[ * {:@]) +.
disc=: ((1+0 73 bs[ +^:(58<]) -/@todayno@(,: 1 1,~{.)@]) ,~1166+{.@])~ leap
Example use:
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.
## Java
```java
import java.util.Calendar;
import java.util.GregorianCalendar;
public class DiscordianDate {
final static String[] seasons = {"Chaos", "Discord", "Confusion",
"Bureaucracy", "The Aftermath"};
final static String[] weekday = {"Sweetmorn", "Boomtime", "Pungenday",
"Prickle-Prickle", "Setting Orange"};
final static String[] apostle = {"Mungday", "Mojoday", "Syaday",
"Zaraday", "Maladay"};
final static String[] holiday = {"Chaoflux", "Discoflux", "Confuflux",
"Bureflux", "Afflux"};
public static String discordianDate(final GregorianCalendar date) {
int y = date.get(Calendar.YEAR);
int yold = y + 1166;
int dayOfYear = date.get(Calendar.DAY_OF_YEAR);
if (date.isLeapYear(y)) {
if (dayOfYear == 60)
return "St. Tib's Day, in the YOLD " + yold;
else if (dayOfYear > 60)
dayOfYear--;
}
dayOfYear--;
int seasonDay = dayOfYear % 73 + 1;
if (seasonDay == 5)
return apostle[dayOfYear / 73] + ", in the YOLD " + yold;
if (seasonDay == 50)
return holiday[dayOfYear / 73] + ", in the YOLD " + yold;
String season = seasons[dayOfYear / 73];
String dayOfWeek = weekday[dayOfYear % 5];
return String.format("%s, day %s of %s in the YOLD %s",
dayOfWeek, seasonDay, season, yold);
}
public static void main(String[] args) {
System.out.println(discordianDate(new GregorianCalendar()));
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");
}
private static void test(int y, int m, int d, final String result) {
assert (discordianDate(new GregorianCalendar(y, m, d)).equals(result));
}
}
{{Out}}
Setting Orange, day 4 of Confusion in the YOLD 3180
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 divDay = Math.floor(dayOfYear / 73); 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;
Example use:
console.log(discordianDate(new Date(Date.now()))); "Boomtime, the 2nd day of Chaos in the YOLD 3183"
look at [http://www.cs.cmu.edu/~tilt/principia/body.html#applecorps calendar]; learn about [http://jubal.westnet.com/hyperdiscordia/discordian_holydays.html holydays]
JotaCode
@print(
"Today is ",
@let(1,@add(@switch(@time("mon"),
0,-1,
1,30,
2,58,
3,89,
4,119,
5,150,
6,180,
7,211,
8,242,
9,272,
10,303,
11,333)
,@time("mday")),@switch(@print(@time("mon"),"/",@time("mday")),
"1/29","St. Tib's Day",
@print(@switch(@mod("%1",5),
0,"Sweetmorn",
1,"Boomtime",
2,"Pungenday",
3,"Prickle-Prickle",
4,"Setting Orange"),
", ",
@switch(@idiv("%1",73),
0,"Chaos",
1,"Discord",
2,"Confusion",
3,"Bureaucracy",
4,"The Aftermath"),
" ",
@add(@mod("%1",73),1),
", YOLD ",
@add(@time("year"),3066))
)),".")
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)
{{out}}
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"
Kotlin
{{trans|Java}}
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") }
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);
{{out}}
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.
=={{header|Mathematica}} / {{header|Wolfram Language}}==
DiscordianDate[y_, m_, d_] := Module[{year = ToString[y + 1166], month = m, day = d},
DMONTHS = {"Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"};
DDAYS = {"Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"};
DayOfYear = DateDifference[{y} ,{y, m, d}] + 1;
LeapYearQ = (Mod[#, 4]== 0 && (Mod[#, 100] != 0 || Mod[#, 400] == 0))&@ y;
If [ LeapYearQ && month == 2 && day == 29,
Print["Today is St. Tib's Day, YOLD ", ]
,
If [ LeapYearQ && DayOfYear >= 60, DayOfYear -= 1 ];
{season, dday} = {Quotient[DayOfYear, 73], Mod[DayOfYear, 73]};
Print["Today is ", DDAYS[[Mod[dday,4] + 1]],", ",DMONTHS[[season+1]]," ",dday,", YOLD ",year]
];
]
{{Out}}
DiscordianDate[2012,2,28]
-> Today is Prickle-Prickle, Chaos 59, YOLD 3178
DiscordianDate[2012,2,29]
-> Today is St. Tib's Day, YOLD 3178
DiscordianDate[2012,3,1]
-> Today is Setting Orange, Chaos 60, YOLD 3178
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.
{{Out}}
./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
Perl
{{trans|Perl6}}
use 5.010; use strict; use warnings; use Time::Piece (); my @seasons = (qw< Chaos Discord Confusion Bureaucracy >, 'The Aftermath'); my @week_days = (qw< Sweetmorn Boomtime Pungenday Prickle-Prickle >, 'Setting Orange'); sub ordinal { my ($n) = @_; return $n . "th" if int($n/10) == 1; return $n . ((qw< th st nd rd th th th th th th>)[$n % 10]); } sub ddate { my $d = Time::Piece->strptime( $_[0], '%Y-%m-%d' ); my $yold = 'in the YOLD ' . ($d->year + 1166); my $day_of_year0 = $d->day_of_year; if( $d->is_leap_year ) { return "St. Tib's Day, $yold" if $d->mon == 2 and $d->mday == 29; $day_of_year0-- if $day_of_year0 >= 60; # Compensate for St. Tib's Day } my $weekday = $week_days[ $day_of_year0 % @week_days ]; my $season = $seasons[ $day_of_year0 / 73 ]; my $season_day = ordinal( $day_of_year0 % 73 + 1 ); return "$weekday, the $season_day day of $season $yold"; } say "$_ is " . ddate($_) for qw< 2010-07-22 2012-02-28 2012-02-29 2012-03-01 >;
{{out}}
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
Perl 6
{{Works with|rakudo|2015-11-04}}
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 >;
{{out}}
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
Phix
constant seasons = {"Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"}
constant weekday = {"Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange"}
constant apostle = {"Mungday", "Mojoday", "Syaday", "Zaraday", "Maladay"}
constant holiday = {"Chaoflux", "Discoflux", "Confuflux", "Bureflux", "Afflux"}
function discordianDate(sequence dt)
string dyear, dseas, dwday
integer leap, doy, dsday,dseason
integer {y,m,d} = dt
dyear = sprintf("%d",y+1166)
leap = isleapyear(y)
if leap and m=2 and d=29 then
return "St. Tib's Day, in the YOLD " & dyear
end if
doy = day_of_year(y,m,d)-1
if leap and doy>=60 then
doy -= 1
end if
dsday = remainder(doy,73)+1
dseason = floor(doy/73+1)
if dsday=5 then
return apostle[dseason] & ", in the YOLD " & dyear
elsif dsday=50 then
return holiday[dseason] & ", in the YOLD " & dyear
end if
dseas = seasons[dseason]
dwday = weekday[remainder(doy,5)+1]
return sprintf("%s, day %d of %s in the YOLD %s", {dwday, dsday, dseas, dyear})
end function
test code
sequence dt = {2015,1,1,0,0,0,0,0}
include timedate.e
atom oneday = timedelta(days:=1)
set_timedate_formats({"DD/MM/YYYY: "})
for i=1 to 5 do
?format_timedate(dt)&discordianDate(dt)
dt = adjust_timedate(dt,oneday*72)
?format_timedate(dt)&discordianDate(dt)
dt = adjust_timedate(dt,oneday)
end for
{{out}}
"01/01/2015: Sweetmorn, day 1 of Chaos in the YOLD 3181"
"14/03/2015: Pungenday, day 73 of Chaos in the YOLD 3181"
"15/03/2015: Prickle-Prickle, day 1 of Discord in the YOLD 3181"
"26/05/2015: Sweetmorn, day 73 of Discord in the YOLD 3181"
"27/05/2015: Boomtime, day 1 of Confusion in the YOLD 3181"
"07/08/2015: Prickle-Prickle, day 73 of Confusion in the YOLD 3181"
"08/08/2015: Setting Orange, day 1 of Bureaucracy in the YOLD 3181"
"19/10/2015: Boomtime, day 73 of Bureaucracy in the YOLD 3181"
"20/10/2015: Pungenday, day 1 of The Aftermath in the YOLD 3181"
"31/12/2015: Setting Orange, day 73 of The Aftermath in the YOLD 3181"
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]; $userm = $edate[1]; $userd = $edate[2]; $IsLeap = $edate[3]; // If the user supplied us with a date overide the one we got from the system. // If you could get the date from users browser via javascript and then call // this script with the users date. ddate.php?y=year&m=month&d=day mostly it // won't matter but if the server is in a different time zone to the user // There will be occasional incorrect results from the users POV. if (isset($_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)) $IsLeap =1; if ($usery%400 == 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; ?>
{{Out}}
ddate.php #23 November 2011
Today is Boomtime the 35th day of The Aftermath YOLD 3177
ddate.php?y=2012&m=2&y=28
Today is Prickle-Prickle the 59th day of Chaos YOLD 3178
ddate.php?y=2012&m=2&y=29
Celeberate St. Tibs Day, Chaos YOLD 3178
ddate.php?y=2017&m=8&d=12
Celeberate for today Prickle-Prickle The 5th day of Bureacracy YOLD 3183 is the holy day of Zaraday
PicoLisp
{{trans|Python}}
(de disdate (Year Month Day)
(let? Date (date Year Month Day)
(let (Leap (date Year 2 29) D (- Date (date Year 1 1)))
(if (and Leap (= 2 Month) (= 29 Day))
(pack "St. Tib's Day, YOLD " (+ Year 1166))
(and Leap (>= D 60) (dec 'D))
(pack
(get
'("Chaos" "Discord" "Confusion" "Bureaucracy" "The Aftermath")
(inc (/ D 73)) )
" "
(inc (% D 73))
", YOLD "
(+ Year 1166) ) ) ) ) )
Pike
Pike includes a Discordian calendar. dates can be converted from any calendar to any other.
Calendar.Discordian.now()->format_ext_ymd();
Result: "Pungenday, 59 Bureaucracy 3177"
> Calendar.Discordian.Day(Calendar.Day(2011,11,11))->format_ext_ymd();
Result: "Setting Orange, 23 The Aftermath 3177"
> Calendar.Discordian.Day(Calendar.Badi.Day(168,13,9))->format_ext_ymd();
Result: "Setting Orange, 23 The Aftermath 3177"
> Calendar.Day((Calendar.Discordian.Month()+1)->day(1));
Result: Day(Thu 20 Oct 2011)
PowerBASIC
#COMPILE EXE
#DIM ALL
'change this for systems that use a different character
$DATESEP = "-"
FUNCTION day(date AS STRING) AS LONG
'date is same format as date$
DIM tmpdash1 AS LONG, tmpdash2 AS LONG
tmpdash1 = INSTR(date, $DATESEP)
tmpdash2 = INSTR(-1, date, $DATESEP)
FUNCTION = VAL(MID$(date, tmpdash1 + 1, tmpdash2 - tmpdash1 - 1))
END FUNCTION
FUNCTION month(date AS STRING) AS LONG
'date is same format as date$
DIM tmpdash AS LONG
tmpdash = INSTR(date, $DATESEP)
FUNCTION = VAL(LEFT$(date, tmpdash - 1))
END FUNCTION
FUNCTION year(date AS STRING) AS LONG
'date is same format as date$
DIM tmpdash AS LONG
tmpdash = INSTR(-1, date, $DATESEP)
FUNCTION = VAL(MID$(date, tmpdash + 1))
END FUNCTION
FUNCTION julian(date AS STRING) AS LONG
'date is same format as date$
'doesn't account for leap years (not needed for ddate)
'days preceding 1st of month
' jan feb mar apr may jun jul aug sep oct nov dec
DATA 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
FUNCTION = VAL(READ$(month(date))) + day(date)
END FUNCTION
FUNCTION PBMAIN () AS LONG
'Season names
DATA "Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"
'Weekdays
DATA "Setting Orange", "Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle"
DIM dyear AS LONG, dseason AS STRING, dday AS LONG, dweekday AS STRING
DIM tmpdate AS STRING, jday AS LONG, result AS STRING
IF LEN(COMMAND$) THEN
tmpdate = COMMAND$
ELSE
tmpdate = DATE$
END IF
dyear = year(tmpdate) + 1166
IF (2 = month(tmpdate)) AND (29 = day(tmpdate)) THEN
result = "Saint Tib's Day, " & STR$(dyear) & " YOLD"
ELSE
jday = julian(tmpdate)
dseason = READ$((jday \ 73) + 1)
dday = (jday MOD 73)
IF 0 = dday THEN dday = 73
dweekday = READ$((jday MOD 5) + 6)
result = dweekday & ", " & dseason & " " & TRIM$(STR$(dday)) & ", " & TRIM$(STR$(dyear)) & " YOLD"
END IF
? result
END FUNCTION
PowerShell
{{works with|powershell|2}}
function ConvertTo-Discordian ( [datetime]$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 $DiscordianDate } ConvertTo-Discordian ([datetime]'1/5/2016') ConvertTo-Discordian ([datetime]'2/29/2016') ConvertTo-Discordian ([datetime]'12/8/2016')
{{out}}
Setting Orange, Chaos 5, 3182 YOLD
St. Tib's Day, 3182 YOLD
Boomtime, The Aftermath 50, 3182 YOLD
PureBasic
Procedure.s Discordian_Date(Y, M, D)
Protected DoY=DayOfYear(Date(Y,M,D,0,0,0)), Yold$=Str(Y+1166)
Dim S.s(4)
S(0)="Chaos": S(1)="Discord": S(2)="Confusion": S(3)="Bureaucracy"
S(4)="The Aftermath"
If (Y%4=0 And Y%100) Or Y%400=0
If M=2 And D=29
ProcedureReturn "St. Tib's Day, YOLD " + Yold$
ElseIf DoY>=2*30
DoY-1
EndIf
EndIf
ProcedureReturn S(DoY/73)+" "+Str(DoY%73)+", Yold "+Yold$
EndProcedure
Python
import datetime, calendar DISCORDIAN_SEASONS = ["Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath"] def ddate(year, month, day): today = datetime.date(year, month, day) is_leap_year = calendar.isleap(year) if is_leap_year and month == 2 and day == 29: return "St. Tib's Day, YOLD " + (year + 1166) day_of_year = today.timetuple().tm_yday - 1 if is_leap_year and day_of_year >= 60: day_of_year -= 1 # Compensate for St. Tib's Day season, dday = divmod(day_of_year, 73) return "%s %d, YOLD %d" % (DISCORDIAN_SEASONS[season], dday + 1, year + 1166)
Racket
{{trans|D}}
#lang racket/base
;;;; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
;;;; Derived from 'D' Implementation
;;;; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(require racket/date racket/match)
(define seasons '(Chaos Discord Confusion Bureaucracy |The Aftermath|))
(define weekday '(Sweetmorn Boomtime Pungenday Prickle-Prickle |Setting Orange|))
(define apostle '(Mungday Mojoday Syaday Zaraday Maladay))
(define holiday '(Chaoflux Discoflux Confuflux Bureflux Afflux))
(define (ymd->date y m d) (seconds->date (find-seconds 0 0 0 d m y)))
(define (leap-year? y) (with-handlers ((exn? (λ (x) #f))) (= 29 (date-day (ymd->date y 2 29)))))
(define (discordian-date d)
(define leap? (leap-year? (date-year d)))
(define year-day (match* (leap? (date-year-day d))
[(#t (? (λ (D) (>= D 59)) d0)) d0]
[(_ d0) (add1 d0)]))
(define season-day (modulo year-day 73)) ; season day
(define (list-ref-season l)
(define season-index (quotient year-day 73))
(symbol->string (list-ref l season-index)))
(string-append
(match* (season-day leap? (date-month d) (date-day d))
[( _ #t 2 29) "St. Tib's Day,"]
[((app (match-lambda
(5 apostle) (50 holiday) (_ #f))
(and (not #f) special)) _ _ _)
(string-append (list-ref-season special) ",")]
[( _ _ _ _)
(define week-day-name (list-ref weekday (modulo (sub1 year-day) 5)))
(format "~a, day ~a of ~a" week-day-name season-day (list-ref-season seasons))])
" in the YOLD " (number->string (+ (date-year d) 1166))))
(displayln (discordian-date (current-date)))
;; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
;; passing these tests makes me consistent with D implementation
(module+ test
(require rackunit)
(define discordian/ymd (compose discordian-date ymd->date))
(check-equal? (discordian/ymd 2010 7 22) "Pungenday, day 57 of Confusion in the YOLD 3176")
(check-equal? (discordian/ymd 2012 2 28) "Prickle-Prickle, day 59 of Chaos in the YOLD 3178")
(check-equal? (discordian/ymd 2012 2 29) "St. Tib's Day, in the YOLD 3178");
(check-equal? (discordian/ymd 2012 3 1) "Setting Orange, day 60 of Chaos in the YOLD 3178")
(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}}
Pungenday, day 47 of Confusion in the YOLD 3179
REXX
This REXX version allows the '''mm''' or '''dd''' to be one or two digits.
Also, the year can be two or four digits, or it may be omitted.
If the Gregorian date is omitted or specified as an asterisk ('''*'''), the current date is used.
/*REXX program converts a mm/dd/yyyy Gregorian date ───► a Discordian date. */
@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 . /*obtain the specified Gregorian date. */
if gM=='' | gM=="," | gM=='*' then parse value date("U") with gM '/' gD "/" gY .
gY=left( right( date(), 4), 4 - length(Gy) )gY /*adjust for two─digit year or no year.*/
/* [↓] day─of─year, leapyear adjust. */
doy= date('d', gY || right(gM, 2, 0)right(gD ,2, 0), "s") - (leapyear(gY) & gM>2)
dW= doy//5; if dW==0 then dW= 5 /*compute the Discordian weekday. */
dS= (doy-1) % 73 + 1 /* " " " season. */
dD= doy//73; if dD==0 then dD= 73 /* " " " day─of─month. */
if leapyear(gY) & gM==2 & gD==29 then ds= 0 /*is this St. Tib's day (leapday) ? */
if ds==0 then dD= /*adjust for the Discordian leap day. */
say space(@day.dW',' @seas.dS dD"," gY + 1166) /*display Discordian date to terminal. */
exit /*stick a fork in it, we're all done. */
/*──────────────────────────────────────────────────────────────────────────────────────*/
leapyear: procedure; parse arg y /*obtain a four─digit Gregorian year. */
if y//4 \== 0 then return 0 /*Not ÷ by 4? Then not a leapyear. */
return y//100 \== 0 | y//400 == 0 /*apply the 100 and 400 year rules.*/
{{out|input|text= when using the (various) following inputs of:}}
2/28/2012
2/29/2012
3/1/2012
7/22/2010
9/2/2012
12/31/2011
10/19/2015
12/31/2100
{{out|output|text= when using the above (various) inputs:}}
Prickle-Prickle, Chaos 59, 3178
Setting Orange, St. Tib's day, 3178
Setting Orange, Chaos 60, 3178
Pungenday, Confusion 57, 3176
Setting Orange, Bureaucracy 26, 3178
Setting Orange, The Aftermath 73, 3177
Boomtime, Bureaucracy 73, 3181
Setting Orange, The Aftermath 73, 3266
Ruby
require 'date' class DiscordianDate SEASON_NAMES = ["Chaos","Discord","Confusion","Bureaucracy","The Aftermath"] DAY_NAMES = ["Sweetmorn","Boomtime","Pungenday","Prickle-Prickle","Setting Orange"] YEAR_OFFSET = 1166 DAYS_PER_SEASON = 73 DAYS_PER_WEEK = 5 ST_TIBS_DAY_OF_YEAR = 60 def initialize(year, month, day) gregorian_date = Date.new(year, month, day) @day_of_year = gregorian_date.yday @st_tibs = false if gregorian_date.leap? if @day_of_year == ST_TIBS_DAY_OF_YEAR @st_tibs = true elsif @day_of_year > ST_TIBS_DAY_OF_YEAR @day_of_year -= 1 end 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 attr_reader :year, :day def season SEASON_NAMES[@season] end def weekday if @st_tibs "St. Tib's Day" else DAY_NAMES[(@day_of_year - 1) % DAYS_PER_WEEK] end end def to_s %Q{#{@st_tibs ? "St. Tib's Day" : "%s, %s %d" % [weekday, season, day]}, #{year} YOLD} end end
Testing:
[[2012, 2, 28], [2012, 2, 29], [2012, 3, 1], [2011, 10, 5], [2015, 10, 19]].each do |date| dd = DiscordianDate.new(*date) puts "#{"%4d-%02d-%02d" % date} => #{dd}" end
{{Out}}
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
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.
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) }
{{Out}}
$ ./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
$
Scala
{{trans|Python}}
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]") }
Test:
scala rosetta.DDate 2010 7 22 Confusion 57, 3176 YOLD scala rosetta.DDate 28 2 2012 Chaos 59, 3178 YOLD 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
Seed7
$ include "seed7_05.s7i";
include "time.s7i";
const array string: seasons is [0] ("Chaos", "Discord", "Confusion", "Bureaucracy", "The Aftermath");
const array string: weekday is [0] ("Sweetmorn", "Boomtime", "Pungenday", "Prickle-Prickle", "Setting Orange");
const array string: apostle is [0] ("Mungday", "Mojoday", "Syaday", "Zaraday", "Maladay");
const array string: holiday is [0] ("Chaoflux", "Discoflux", "Confuflux", "Bureflux", "Afflux");
const func string: discordianDate (in time: date) is func
result
var string: discordianDate is "";
local
var integer: dyear is 0;
var integer: doy is 0;
var integer: dsday is 0;
begin
dyear := date.year + 1166;
if isLeapYear(date.year) and date.month = 2 and date.day = 29 then
discordianDate := "St. Tib's Day, in the YOLD " <& dyear;
else
doy := dayOfYear(date);
if isLeapYear(date.year) and doy >= 60 then
decr(doy);
end if;
dsday := doy rem 73; # season day
if dsday = 5 then
discordianDate := apostle[doy div 73] <& ", in the YOLD " <& dyear;
elsif dsday = 50 then
discordianDate := holiday[doy div 73] <& ", in the YOLD " <& dyear;
else
discordianDate := weekday[pred(doy) rem 5] <&
", day " <& dsday <&
" of " <& seasons[doy div 73] <&
" in the YOLD " <& dyear;
end if;
end if;
end func;
const proc: main is func
local
var time: today is time.value;
begin
today := time(NOW);
writeln(strDate(today) <& " as Discordian date: " <& discordianDate(today));
if discordianDate(date(2010, 7, 22)) = "Pungenday, day 57 of Confusion in the YOLD 3176" and
discordianDate(date(2012, 2, 28)) = "Prickle-Prickle, day 59 of Chaos in the YOLD 3178" and
discordianDate(date(2012, 2, 29)) = "St. Tib's Day, in the YOLD 3178" and
discordianDate(date(2012, 3, 1)) = "Setting Orange, day 60 of Chaos in the YOLD 3178" and
discordianDate(date(2010, 1, 5)) = "Mungday, in the YOLD 3176" and
discordianDate(date(2011, 5, 3)) = "Discoflux, in the YOLD 3177" then
writeln("Discordian date computation works.");
end if;
end func;
{{out}}
2013-05-12 as Discordian date: Boomtime, day 59 of Discord in the YOLD 3179
Discordian date computation works.
Sidef
{{trans|Perl}}
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)}" }
{{out}}
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
Tcl
package require Tcl 8.5 proc disdate {year month day} { # Get the day of the year set now [clock scan [format %02d-%02d-%04d $day $month $year] -format %d-%m-%Y] scan [clock format $now -format %j] %d doy # Handle leap years if {!($year%4) && (($year%100) || !($year%400))} { if {$doy == 60} { return "St. Tib's Day, [expr {$year + 1166}] YOLD" } elseif {$doy > 60} { incr doy -1 } } # Main conversion to discordian format now that special cases are handled incr doy -1; # Allow div/mod to work right set season [lindex {Chaos Discord Confusion Bureaucracy {The Aftermath}} \ [expr {$doy / 73}]] set dos [expr {$doy % 73 + 1}] incr year 1166 return "$season $dos, $year YOLD" }
Demonstrating:
puts [disdate 2010 7 22]; # Today puts [disdate 2012 2 28] puts [disdate 2012 2 29] puts [disdate 2012 3 1]
{{Out}}
Confusion 57, 3176 YOLD
Chaos 59, 3178 YOLD
St. Tib's Day, 3178 YOLD
Chaos 60, 3178 YOLD
zkl
{{trans|D}}
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);
}
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();
}
{{out}}
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