⚠️ 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}}
;Task: Write a program that outputs the lyrics of the Christmas carol ''The Twelve Days of Christmas''. The lyrics can be found [http://www.lyricsmode.com/lyrics/c/christmas_carols/the_twelve_days_of_christmas.html here].
(You must reproduce the words in the correct order, but case, format, and punctuation are left to your discretion.)
;Related tasks:
- [[99 Bottles of Beer]]
- [[Old_lady_swallowed_a_fly]]
- [[Comma quibbling]]
ActionScript
This program outputs the lyrics to a TextField object. The text field can be scrolled using the mouse wheel (Windows only) or by using the up/down arrow keys on the keyboard.
{{works with|Flash Player|Flash Player|10}} {{works with|Adobe AIR|AIR|1.5}} (Although the code can work in Flash Player 9 by replacing the Vectors with Arrays)
package {
import flash.display.Sprite;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.events.MouseEvent;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
import flash.ui.Keyboard;
public class TwelveDaysOfChristmas extends Sprite {
private var _textArea:TextField = new TextField();
public function TwelveDaysOfChristmas() {
if ( stage ) _init();
else addEventListener(Event.ADDED_TO_STAGE, _init);
}
private function _init(e:Event = null):void {
removeEventListener(Event.ADDED_TO_STAGE, _init);
_textArea = new TextField();
_textArea.x = 10;
_textArea.y = 10;
_textArea.autoSize = TextFieldAutoSize.LEFT;
_textArea.wordWrap = true;
_textArea.width = stage.stageWidth - 20;
_textArea.height = stage.stageHeight - 10;
_textArea.multiline = true;
var format:TextFormat = new TextFormat();
format.size = 14;
_textArea.defaultTextFormat = format;
var verses:Vector.<String> = new Vector.<String>(12, true);
var lines:Vector.<String>;
var days:Vector.<String> = new Vector.<String>(12, true);
var gifts:Vector.<String> = new Vector.<String>(12, true);
days[0] = 'first';
days[1] = 'second';
days[2] = 'third';
days[3] = 'fourth';
days[4] = 'fifth';
days[5] = 'sixth';
days[6] = 'seventh';
days[7] = 'eighth';
days[8] = 'ninth';
days[9] = 'tenth';
days[10] = 'eleventh';
days[11] = 'twelfth';
gifts[0] = 'A partridge in a pear tree';
gifts[1] = 'Two turtle doves';
gifts[2] = 'Three french hens';
gifts[3] = 'Four calling birds';
gifts[4] = 'Five golden rings';
gifts[5] = 'Six geese a-laying';
gifts[6] = 'Seven swans a-swimming';
gifts[7] = 'Eight maids a-milking';
gifts[8] = 'Nine ladies dancing';
gifts[9] = 'Ten lords a-leaping';
gifts[10] = 'Eleven pipers piping';
gifts[11] = 'Twelve drummers drumming';
var i:uint, j:uint, k:uint, line:String;
for ( i = 0; i < 12; i++ ) {
lines = new Vector.<String>(i + 2, true);
lines[0] = "On the " + days[i] + " day of Christmas, my true love gave to me";
j = i + 1;
k = 0;
while ( j-- > 0 )
lines[++k] = gifts[j];
verses[i] = lines.join('\n');
if ( i == 0 )
gifts[0] = 'And a partridge in a pear tree';
}
var song:String = verses.join('\n\n');
_textArea.text = song;
addChild(_textArea);
_textArea.addEventListener(MouseEvent.MOUSE_WHEEL, _onMouseWheel);
stage.addEventListener(KeyboardEvent.KEY_DOWN, _onKeyDown);
}
private function _onKeyDown(e:KeyboardEvent):void {
if ( e.keyCode == Keyboard.DOWN )
_textArea.y -= 40;
else if ( e.keyCode == Keyboard.UP )
_textArea.y += 40;
}
private function _onMouseWheel(e:MouseEvent):void {
_textArea.y += 20 * e.delta;
}
}
}
ALGOL 68
{{Works with|ALGOL 68 Genie}}
BEGIN
[]STRING labels = ("first", "second", "third", "fourth",
"fifth", "sixth", "seventh", "eighth",
"ninth", "tenth", "eleventh", "twelfth");
[]STRING gifts = ("A partridge in a pear tree.",
"Two turtle doves, and",
"Three French hens,",
"Four calling birds,",
"Five gold rings,",
"Six geese a-laying,",
"Seven swans a-swimming,",
"Eight maids a-milking,",
"Nine ladies dancing,",
"Ten lords a-leaping,",
"Eleven pipers piping,",
"Twelve drummers drumming,");
FOR day TO 12 DO
print(("On the ", labels[day],
" day of Christmas, my true love sent to me:", newline));
FOR gift FROM day BY -1 TO 1 DO
print((gifts[gift], newline))
OD;
print(newline)
OD
END
{{Out}}
On the first day of Christmas, my true love sent to me:
A partridge in a pear tree.
On the second day of Christmas, my true love sent to me:
Two turtle doves, and
A partridge in a pear tree.
[...]
On the twelfth day of Christmas, my true love sent to me:
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five gold rings,
Four calling birds,
Three French hens,
Two turtle doves, and
A partridge in a pear tree.
AppleScript
Iterative
set gifts to {"A partridge in a pear tree.", "Two turtle doves, and", ¬
"Three French hens,", "Four calling birds,", ¬
"Five gold rings,", "Six geese a-laying,", ¬
"Seven swans a-swimming,", "Eight maids a-milking,", ¬
"Nine ladies dancing,", "Ten lords a-leaping,", ¬
"Eleven pipers piping,", "Twelve drummers drumming"}
set labels to {"first", "second", "third", "fourth", "fifth", "sixth", ¬
"seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth"}
repeat with day from 1 to 12
log "On the " & item day of labels & " day of Christmas, my true love sent to me:"
repeat with gift from day to 1 by -1
log item gift of gifts
end repeat
log ""
end repeat
{{Out}}
On the first day of Christmas, my true love sent to me:
A partridge in a pear tree.
On the second day of Christmas, my true love sent to me:
Two turtle doves, and
A partridge in a pear tree.
[...]
On the twelfth day of Christmas, my true love sent to me:
Twelve drummers drumming
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five gold rings,
Four calling birds,
Three French hens,
Two turtle doves, and
A partridge in a pear tree.
Functional composition
Drawing on some functional primitives, and post-Yosemite AppleScript's ability to import Foundation classes:
use framework "Foundation"
property pstrGifts : "A partridge in a pear tree, Two turtle doves, Three French hens, " & ¬
"Four calling birds, Five golden rings, Six geese a-laying, " & ¬
"Seven swans a-swimming, Eight maids a-milking, Nine ladies dancing, " & ¬
"Ten lords a-leaping, Eleven pipers piping, Twelve drummers drumming"
property pstrOrdinals : "first, second, third, fourth, fifth, " & ¬
"sixth, seventh, eighth, ninth, tenth, eleventh, twelfth"
-- DAYS OF XMAS ------------------------------------------------------------
-- daysOfXmas :: () -> String
on daysOfXmas()
-- csv :: String -> [String]
script csv
on |λ|(str)
splitOn(", ", str)
end |λ|
end script
set {gifts, ordinals} to map(csv, [pstrGifts, pstrOrdinals])
-- verseOfTheDay :: Int -> String
script verseOfTheDay
-- dayGift :: Int -> String
script dayGift
on |λ|(n, i)
set strGift to item n of gifts
if n = 1 then
set strFirst to strGift & " !"
if i is not 1 then
"And " & toLower(text 1 of strFirst) & text 2 thru -1 of strFirst
else
strFirst
end if
else if n = 5 then
toUpper(strGift)
else
strGift
end if
end |λ|
end script
on |λ|(intDay)
"On the " & item intDay of ordinals & " day of Xmas, my true love gave to me ..." & ¬
linefeed & intercalate("," & linefeed, ¬
map(dayGift, enumFromTo(intDay, 1)))
end |λ|
end script
intercalate(linefeed & linefeed, ¬
map(verseOfTheDay, enumFromTo(1, length of ordinals)))
end daysOfXmas
-- TEST ---------------------------------------------------------------------
on run
daysOfXmas()
end run
-- GENERIC FUNCTIONS --------------------------------------------------------
-- enumFromTo :: Int -> Int -> [Int]
on enumFromTo(m, n)
if m > n then
set d to -1
else
set d to 1
end if
set lst to {}
repeat with i from m to n by d
set end of lst to i
end repeat
return lst
end enumFromTo
-- intercalate :: Text -> [Text] -> Text
on intercalate(strText, lstText)
set {dlm, my text item delimiters} to {my text item delimiters, strText}
set strJoined to lstText as text
set my text item delimiters to dlm
return strJoined
end intercalate
-- map :: (a -> b) -> [a] -> [b]
on map(f, xs)
tell mReturn(f)
set lng to length of xs
set lst to {}
repeat with i from 1 to lng
set end of lst to |λ|(item i of xs, i, xs)
end repeat
return lst
end tell
end map
-- Lift 2nd class handler function into 1st class script wrapper
-- mReturn :: Handler -> Script
on mReturn(f)
if class of f is script then
f
else
script
property |λ| : f
end script
end if
end mReturn
-- splitOn :: Text -> Text -> [Text]
on splitOn(strDelim, strMain)
set {dlm, my text item delimiters} to {my text item delimiters, strDelim}
set lstParts to text items of strMain
set my text item delimiters to dlm
return lstParts
end splitOn
-- toLower :: String -> String
on toLower(str)
set ca to current application
((ca's NSString's stringWithString:(str))'s ¬
lowercaseStringWithLocale:(ca's NSLocale's currentLocale())) as text
end toLower
-- toUpper :: String -> String
on toUpper(str)
set ca to current application
((ca's NSString's stringWithString:(str))'s ¬
uppercaseStringWithLocale:(ca's NSLocale's currentLocale())) as text
end toUpper
{{Out}}
On the first day of Xmas, my true love gave to me ...
A partridge in a pear tree !
On the second day of Xmas, my true love gave to me ...
Two turtle doves,
And a partridge in a pear tree !
...
On the twelfth day of Xmas, my true love gave to me ...
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
FIVE GOLDEN RINGS,
Four calling birds,
Three French hens,
Two turtle doves,
And a partridge in a pear tree !
Ada
with Ada.Text_IO; use Ada.Text_IO;
with Ada.Strings.Unbounded; use Ada.Strings.Unbounded;
procedure Twelve_Days_Of_Christmas is
type Days is (First, Second, Third, Fourth, Fifth, Sixth,
Seventh, Eighth, Ninth, Tenth, Eleventh, Twelfth);
package E_IO is new Ada.Text_IO.Enumeration_IO(Days);
use E_IO;
Gifts : array (Days) of Unbounded_String :=
(To_Unbounded_String(" A partridge in a pear-tree."),
To_Unbounded_String(" Two turtle doves"),
To_Unbounded_String(" Three French hens"),
To_Unbounded_String(" Four calling birds"),
To_Unbounded_String(" Five golden rings"),
To_Unbounded_String(" Six geese a-laying"),
To_Unbounded_String(" Seven swans a-swimming"),
To_Unbounded_String(" Eight maids a-milking"),
To_Unbounded_String(" Nine ladies dancing"),
To_Unbounded_String(" Ten lords a-leaping"),
To_Unbounded_String(" Eleven pipers piping"),
To_Unbounded_String(" Twelve drummers drumming"));
begin
for Day in Days loop
Put("On the "); Put(Day, Set => Lower_Case); Put(" day of Christmas,");
New_Line; Put_Line("My true love gave to me:");
for D in reverse Days'First..Day loop
Put_Line(To_String(Gifts(D)));
end loop;
if Day = First then
Replace_Slice(Gifts(Day), 2, 2, "And a");
end if;
New_Line;
end loop;
end Twelve_Days_Of_Christmas;
AutoHotkey
nth := ["first","second","third","fourth","fifth","sixth","seventh","eighth","ninth","tenth","eleventh","twelfth"]
lines := ["A partridge in a pear tree."
,"Two turtle doves and"
,"Three french hens"
,"Four calling birds"
,"Five golden rings"
,"Six geese a-laying"
,"Seven swans a-swimming"
,"Eight maids a-milking"
,"Nine ladies dancing"
,"Ten lords a-leaping"
,"Eleven pipers piping"
,"Twelve drummers drumming"]
full:="", mid:=""
loop % lines.MaxIndex()
{
top:="On the " . nth[A_Index] . " day of Christmas,`nMy true love gave to me:"
mid:= lines[A_Index] . "`n" . mid
full:= full . top . "`n" . mid . ((A_Index<lines.MaxIndex())?"`n":"")
}
MsgBox % full
AWK
# syntax: GAWK -f THE_TWELVE_DAYS_OF_CHRISTMAS.AWK
BEGIN {
gifts[++i] = "a partridge in a pear tree."
gifts[++i] = "two turtle doves, and"
gifts[++i] = "three french hens,"
gifts[++i] = "four calling birds,"
gifts[++i] = "five golden rings,"
gifts[++i] = "six geese a-laying,"
gifts[++i] = "seven swans a-swimming,"
gifts[++i] = "eight maids a-milking,"
gifts[++i] = "nine ladies dancing,"
gifts[++i] = "ten lords a-leaping,"
gifts[++i] = "eleven pipers piping,"
gifts[++i] = "twelve drummers drumming,"
split("first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth",days_arr," ")
for (i=1; i<=12; i++) {
printf("On the %s day of Christmas,\n",days_arr[i])
print("my true love gave to me:")
for (j=i; j>0; j--) {
printf("%s\n",gifts[j])
}
print("")
}
exit(0)
}
{{out}}
On the first day of Christmas,
my true love gave to me:
a partridge in a pear tree.
On the second day of Christmas,
my true love gave to me:
two turtle doves, and
a partridge in a pear tree.
...
On the twelfth day of Christmas,
my true love gave to me:
twelve drummers drumming,
eleven pipers piping,
ten lords a-leaping,
nine ladies dancing,
eight maids a-milking,
seven swans a-swimming,
six geese a-laying,
five golden rings,
four calling birds,
three french hens,
two turtle doves, and
a partridge in a pear tree.
Batch File
:: The Twelve Days of Christmas
:: Batch File Implementation
@echo off
::Pseudo-array for Days
set "day1=First"
set "day2=Second"
set "day3=Third"
set "day4=Fourth"
set "day5=Fifth"
set "day6=Sixth"
set "day7=Seventh"
set "day8=Eighth"
set "day9=Nineth"
set "day10=Tenth"
set "day11=Eleventh"
set "day12=Twelveth"
::Pseudo-array for Gifts
set "gift12=Twelve drummers drumming"
set "gift11=Eleven pipers piping"
set "gift10=Ten loards a-leaping"
set "gift9=Nine ladies dancing"
set "gift8=Eight maids a-milking"
set "gift7=Seven swans a-swimming"
set "gift6=Six geese a-laying"
set "gift5=Five golden rings"
set "gift4=Four calling birds"
set "gift3=Three french hens"
set "gift2=Two turtle doves"
set "gift1=A partridge in a pear tree"
::Display It!
setlocal enabledelayedexpansion
for /l %%i in (1,1,12) do (
echo On the !day%%i! day of Christmas
echo My true love gave to me:
for /l %%j in (%%i,-1,1) do (
if %%j equ 1 (
if %%i neq 1 <nul set /p ".=And "
echo !gift1!.
) else (
echo !gift%%j!,
)
)
echo(
)
exit /b
Bracmat
( first
second
third
fourth
fifth
sixth
seventh
eighth
ninth
tenth
eleventh
twelveth
: ?days
& "A partridge in a pear tree."
"Two turtle doves and"
"Three french hens,"
"Four calling birds,"
"Five golden rings,"
"Six geese a-laying,"
"Seven swans a-swimming,"
"Eight maids a-milking,"
"Nine ladies dancing,"
"Ten lords a-leaping,"
"Eleven pipers piping,"
"Twelve drummers drumming,"
: ?gifts
& :?given
& whl
' ( !gifts:%?gift ?gifts
& !gift \n !given:?given
& !days:%?day ?days
& out
$ ( str
$ ("\nOn the " !day " day of Christmas my true love gave to me:
" !given)
)
)
);
Befunge
This is essentially the same algorithm as [[Old_lady_swallowed_a_fly#Befunge|Old lady swallowed a fly]] - just a different set of phrases and a simpler song pattern.
0246*+00p20#v_:#`2#g+#0:#0<>\#%"O"/#:3#:+#< g48*- >1-:!#v_\1+::"O"%\"O"/v
>-#11#\0#50#< g2-:00p4v >\#%"O"/#::$#<3#$+g48*-v^\,+*+ 55!:*!!-"|":g+3<
^02_>#`>#< 2 5 3 1 0 \1-:#^\_^#:-1\+<00_@#:>#<$<
(On the ?|A partridge in a pear tree.||&first% andL day of Christmas,|My true l
ove gave to me:2|Two turtle doves'second3|Three french hens&third4|Four calling
birds'fourth3|Five golden rings&fifth4|Six geese a-laying&sixth8|Seven swans a
-swimming(seventh7|Eight maids a-milking'eighth5|Nine ladies dancing&ninth5|Ten
lords a-leaping&tenth6|Eleven pipers piping)eleventh:|Twelve drummers drumming
(twelfth
C
#include<stdio.h>
int main()
{
int i,j;
char days[12][10] =
{
"First",
"Second",
"Third",
"Fourth",
"Fifth",
"Sixth",
"Seventh",
"Eighth",
"Ninth",
"Tenth",
"Eleventh",
"Twelfth"
};
char gifts[12][33] =
{
"Twelve drummers drumming",
"Eleven pipers piping",
"Ten lords a-leaping",
"Nine ladies dancing",
"Eight maids a-milking",
"Seven swans a-swimming",
"Six geese a-laying",
"Five golden rings",
"Four calling birds",
"Three french hens",
"Two turtle doves",
"And a partridge in a pear tree."
};
for(i=0;i<12;i++)
{
printf("\n\nOn the %s day of Christmas\nMy true love gave to me:",days[i]);
for(j=i;j>=0;j--)
{
(i==0)?printf("\nA partridge in a pear tree."):printf("\n%s%c",gifts[11-j],(j!=0)?',':' ');
}
}
return 0;
}
C++
#include <iostream>
#include <array>
#include <string>
using namespace std;
int main()
{
const array<string, 12> days
{
"first",
"second",
"third",
"fourth",
"fifth",
"sixth",
"seventh",
"eighth",
"ninth",
"tenth",
"eleventh",
"twelfth"
};
const array<string, 12> gifts
{
"And a partridge in a pear tree",
"Two turtle doves",
"Three french hens",
"Four calling birds",
"FIVE GOLDEN RINGS",
"Six geese a-laying",
"Seven swans a-swimming",
"Eight maids a-milking",
"Nine ladies dancing",
"Ten lords a-leaping",
"Eleven pipers piping",
"Twelve drummers drumming"
};
for(int i = 0; i < days.size(); ++i)
{
cout << "On the " << days[i] << " day of christmas, my true love gave"
<< " to me\n";
if(i == 0)
{
cout << "A partridge in a pear tree\n";
}
else
{
int j = i + 1;
while(j-- > 0) cout << gifts[j] << "\n";
}
cout << "\n";
}
return 0;
}
C#
using System;
public class TwelveDaysOfChristmas {
public static void Main() {
string[] days = new string[12] {
"first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth",
"tenth", "eleventh", "twelfth",
};
string[] gifts = new string[12] {
"A partridge in a pear tree",
"Two turtle doves",
"Three french hens",
"Four calling birds",
"Five golden rings",
"Six geese a-laying",
"Seven swans a-swimming",
"Eight maids a-milking",
"Nine ladies dancing",
"Ten lords a-leaping",
"Eleven pipers piping",
"Twelve drummers drumming"
};
for ( int i = 0; i < 12; i++ ) {
Console.WriteLine("On the " + days[i] + " day of Christmas, my true love gave to me");
int j = i + 1;
while ( j-- > 0 )
Console.WriteLine(gifts[j]);
Console.WriteLine();
if ( i == 0 )
gifts[0] = "And a partridge in a pear tree";
}
}
}
Clojure
{{trans|Perl 6}}
(let [numbers '(first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth)
gifts ["And a partridge in a pear tree", "Two turtle doves", "Three French hens",
"Four calling birds", "Five gold rings", "Six geese a-laying",
"Seven swans a-swimming", "Eight maids a-miling", "Nine ladies dancing",
"Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming"]
day (fn [n] (printf "On the %s day of Christmas, my true love sent to me\n" (nth numbers n)))]
(day 0)
(println (clojure.string/replace (first gifts) "And a" "A"))
(dorun (for [d (range 1 12)] (do
(println)
(day d)
(dorun (for [n (range d -1 -1)]
(println (nth gifts n))))))))
{{Out}}
On the first day of Christmas, my true love sent to me:
A partridge in a pear tree.
On the second day of Christmas, my true love sent to me:
Two turtle doves and
A partridge in a pear tree.
[...]
On the twelfth day of Christmas, my true love sent to me:
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five gold rings,
Four calling birds,
Three French hens,
Two turtle doves and
A partridge in a pear tree.
COBOL
{{works with|GNU Cobol|2.0}}
SOURCE FREE
PROGRAM-ID. twelve-days-of-christmas.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 gifts-area VALUE "partridge in a pear tree "
& "Two turtle doves "
& "Three french hens "
& "Four calling birds "
& "FIVE GOLDEN RINGS "
& "Six geese a-laying "
& "Seven swans a-swimming "
& "Eight maids a-milking "
& "Nine ladies dancing "
& "Ten lords a-leaping "
& "Eleven pipers piping "
& "Twelve drummers drumming ".
03 gifts PIC X(30) OCCURS 12 TIMES
INDEXED BY gift-idx.
01 ordinals-area VALUE "first second third fourth fifth "
& "sixth seventh eighth ninth tenth eleventh twelfth ".
03 ordinals PIC X(10) OCCURS 12 TIMES.
01 day-num PIC 99 COMP.
PROCEDURE DIVISION.
PERFORM VARYING day-num FROM 1 BY 1 UNTIL day-num > 12
DISPLAY "On the " FUNCTION TRIM(ordinals (day-num)) " day of Christmas,"
" my true love gave to me"
IF day-num = 1
DISPLAY "A " gifts (1)
ELSE
PERFORM VARYING gift-idx FROM day-num BY -1 UNTIL gift-idx = 1
DISPLAY gifts (gift-idx)
END-PERFORM
DISPLAY "And a " gifts (1)
END-IF
DISPLAY SPACE
END-PERFORM
.
END PROGRAM twelve-days-of-christmas.
Common Lisp
(let
((names '(first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth))
(gifts '( "A partridge in a pear tree." "Two turtle doves and" "Three French hens,"
"Four calling birds," "Five gold rings," "Six geese a-laying,"
"Seven swans a-swimming," "Eight maids a-milking," "Nine ladies dancing,"
"Ten lords a-leaping," "Eleven pipers piping," "Twelve drummers drumming," )))
(loop for day in names for i from 0 doing
(format t "On the ~a day of Christmas, my true love sent to me:" (string-downcase day))
(loop for g from i downto 0 doing (format t "~a~%" (nth g gifts)))
(format t "~%~%")))
{{Out}}
On the first day of Christmas, my true love sent to me:
A partridge in a pear tree.
On the second day of Christmas, my true love sent to me:
Two turtle doves and
A partridge in a pear tree.
[...]
On the twelfth day of Christmas, my true love sent to me:
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five gold rings,
Four calling birds,
Three French hens,
Two turtle doves and
A partridge in a pear tree.
Crystal
{{trans|Ruby}}
days = "first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth".split " "
gifts = "A partridge in a pear tree
Two turtle doves and
Three french hens
Four calling birds
Five golden rings
Six geese a-laying
Seven swans a-swimming
Eight maids a-milking
Nine ladies dancing
Ten lords a-leaping
Eleven pipers piping
Twelve drummers drumming".split "\n"
days.each_with_index do |day, i|
puts "On the #{day} day of Christmas\nMy true love gave to me:"
gifts[0, i + 1].reverse.each &->puts(String)
puts
end
D
{{trans|Python}}
immutable gifts =
"A partridge in a pear tree.
Two turtle doves
Three french hens
Four calling birds
Five golden rings
Six geese a-laying
Seven swans a-swimming
Eight maids a-milking
Nine ladies dancing
Ten lords a-leaping
Eleven pipers piping
Twelve drummers drumming";
immutable days = "first second third fourth fifth
sixth seventh eighth ninth tenth
eleventh twelfth";
void main() @safe {
import std.stdio, std.string, std.range;
foreach (immutable n, immutable day; days.split) {
auto g = gifts.splitLines.take(n + 1).retro;
writeln("On the ", day,
" day of Christmas\nMy true love gave to me:\n",
g[0 .. $ - 1].join('\n'),
(n > 0 ? " and\n" ~ g.back : g.back.capitalize), '\n');
}
}
dc
0
d [first] r :n
d [A partridge in a pear tree.] r :g 1 +
d [second] r :n
d [Two turtle doves and] r :g 1 +
d [third] r :n
d [Three French hens,] r :g 1 +
d [fourth] r :n
d [Four calling birds,] r :g 1 +
d [fifth] r :n
d [Five gold rings,] r :g 1 +
d [sixth] r :n
d [Six geese a-laying,] r :g 1 +
d [seventh] r :n
d [Seven swans a-swimming,] r :g 1 +
d [eighth] r :n
d [Eight maids a-milking,] r :g 1 +
d [ninth] r :n
d [Nine ladies dancing,] r :g 1 +
d [tenth] r :n
d [Ten lords a-leaping,] r :g 1 +
d [eleventh] r :n
d [Eleven pipers piping,] r :g 1 +
d [twelfth] r :n
[Twelve drummers drumming,] r :g
[
d
;g n
10 P
] sp
[
d
0 r !<p
1 -
d
0 r !<r
] sr
[
[On the ] n
d ;n n
[ day of Christmas, my true love sent to me:] n
10 P
d
lr x s_
10 P
1 +
d
12 r <l
] sl
0 ll x
{{Out}}
On the first day of Christmas, my true love sent to me:
A partridge in a pear tree.
On the second day of Christmas, my true love sent to me:
Two turtle doves and
A partridge in a pear tree.
[...]
On the twelfth day of Christmas, my true love sent to me:
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five gold rings,
Four calling birds,
Three French hens,
Two turtle doves and
A partridge in a pear tree.
Eiffel
class
APPLICATION
create
make
feature
make
do
twelve_days_of_christmas
end
feature {NONE}
twelve_days_of_christmas
-- Christmas carol: Twelve days of christmas.
local
i, j: INTEGER
do
create gifts.make_empty
create days.make_empty
gifts := <<"A partridge in a pear tree.", "Two turtle doves and", "Three french hens", "Four calling birds", "Five golden rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming", "And a partridge in a pear tree.", "Two turtle doves">>
days := <<"first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "Twelfth">>
from
i := 1
until
i > days.count
loop
io.put_string ("On the " + days [i] + " day of Christmas.%N")
io.put_string ("My true love gave to me:%N")
from
j := i
until
j <= 0
loop
if i = 12 and j = 2 then
io.put_string (gifts [14] + "%N")
io.put_string (gifts [13] + "%N")
j := j - 1
else
io.put_string (gifts [j] + "%N")
end
j := j - 1
end
io.new_line
i := i + 1
end
end
gifts: ARRAY [STRING]
days: ARRAY [STRING]
end
Elena
{{trans|C++}} ELENA 4.1 :
import extensions;
public program()
{
var days := new string[]::(
"first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth",
"tenth", "eleventh", "twelfth"
);
var gifts := new string[]::(
"And a partridge in a pear tree",
"Two turtle doves",
"Three french hens",
"Four calling birds",
"Five golden rings",
"Six geese a-laying",
"Seven swans a-swimming",
"Eight maids a-milking",
"Nine ladies dancing",
"Ten lords a-leaping",
"Eleven pipers piping",
"Twelve drummers drumming"
);
for(int i := 0, i < 12, i += 1)
{
console.printLine("On the ", days[i], " day of Christmas, my true love gave to me");
if (i == 0)
{
console.printLine("A partridge in a pear tree")
}
else
{
for(int j := i, j >= 0, j -= 1)
{
console.printLine(gifts[j])
}
};
console.printLine()
}
}
Elixir
gifts = """
A partridge in a pear tree
Two turtle doves and
Three french hens
Four calling birds
Five golden rings
Six geese a-laying
Seven swans a-swimming
Eight maids a-milking
Nine ladies dancing
Ten lords a-leaping
Eleven pipers piping
Twelve drummers drumming
""" |> String.split("\n", trim: true)
days = ~w(first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth)
Enum.with_index(days) |> Enum.each(fn {day, i} ->
IO.puts "On the #{day} day of Christmas"
IO.puts "My true love gave to me:"
Enum.take(gifts, i+1) |> Enum.reverse |> Enum.each(&IO.puts &1)
IO.puts ""
end)
{{out}}
On the first day of Christmas
My true love gave to me:
A partridge in a pear tree
On the second day of Christmas
My true love gave to me:
Two turtle doves and
A partridge in a pear tree
...
On the twelfth day of Christmas
My true love gave to me:
Twelve drummers drumming
Eleven pipers piping
Ten lords a-leaping
Nine ladies dancing
Eight maids a-milking
Seven swans a-swimming
Six geese a-laying
Five golden rings
Four calling birds
Three french hens
Two turtle doves and
A partridge in a pear tree
Erlang
-module(twelve_days).
-export([gifts_for_day/1]).
names(N) -> lists:nth(N,
["first", "second", "third", "fourth", "fifth", "sixth",
"seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth" ]).
gifts() -> [ "A partridge in a pear tree.", "Two turtle doves and",
"Three French hens,", "Four calling birds,",
"Five gold rings,", "Six geese a-laying,",
"Seven swans a-swimming,", "Eight maids a-milking,",
"Nine ladies dancing,", "Ten lords a-leaping,",
"Eleven pipers piping,", "Twelve drummers drumming," ].
gifts_for_day(N) ->
"On the " ++ names(N) ++ " day of Christmas, my true love sent to me:\n" ++
string:join(lists:reverse(lists:sublist(gifts(), N)), "\n").
main(_) -> lists:map(fun(N) -> io:fwrite("~s~n~n", [gifts_for_day(N)]) end,
lists:seq(1,12)).
{{Out}}
On the first day of Christmas, my true love sent to me:
A partridge in a pear tree.
On the second day of Christmas, my true love sent to me:
Two turtle doves and
A partridge in a pear tree.
[...]
On the twelfth day of Christmas, my true love sent to me:
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five gold rings,
Four calling birds,
Three French hens,
Two turtle doves and
A partridge in a pear tree.
=={{header|F Sharp|F#}}==
let gifts = [
"And a partridge in a pear tree";
"Two turtle doves";
"Three french hens";
"Four calling birds";
"FIVE GOLDEN RINGS";
"Six geese a-laying";
"Seven swans a-swimming";
"Eight maids a-milking";
"Nine ladies dancing";
"Ten lords a-leaping";
"Eleven pipers piping";
"Twelve drummers drumming"
]
let days = [
"first"; "second"; "third"; "fourth"; "fifth"; "sixth"; "seventh"; "eighth";
"ninth"; "tenth"; "eleventh"; "twelfth"
]
let displayGifts day =
printfn "On the %s day of Christmas, my true love gave to me" days.[day]
if day = 0 then
printfn "A partridge in a pear tree"
else
List.iter (fun i -> printfn "%s" gifts.[i]) [day..(-1)..0]
printf "\n"
List.iter displayGifts [0..11]
Factor
USING: formatting io kernel math math.ranges qw sequences ;
IN: rosetta-code.twelve-days-of-christmas
CONSTANT: opener
"On the %s day of Christmas, my true love sent to me:\n"
CONSTANT: ordinals qw{
first second third fourth fifth sixth seventh eighth ninth
tenth eleventh twelfth
}
CONSTANT: gifts {
"A partridge in a pear tree."
"Two turtle doves, and"
"Three french hens,"
"Four calling birds,"
"Five golden rings,"
"Six geese a-laying,"
"Seven swans a-swimming,"
"Eight maids a-milking,"
"Nine ladies dancing,"
"Ten lords a-leaping,"
"Eleven pipers piping,"
"Twelve drummers drumming,"
}
: descend ( n -- ) 0 [a,b] [ gifts nth print ] each nl ;
: verse ( n -- )
1 - [ ordinals nth opener printf ] [ descend ] bi ;
: twelve-days-of-christmas ( -- ) 12 [1,b] [ verse ] each ;
MAIN: twelve-days-of-christmas
{{out}}
On the first day of Christmas, my true love sent to me:
A partridge in a pear tree.
On the second day of Christmas, my true love sent to me:
Two turtle doves, and
A partridge in a pear tree.
...
On the twelfth day of Christmas, my true love sent to me:
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five golden rings,
Four calling birds,
Three french hens,
Two turtle doves, and
A partridge in a pear tree.
Forth
{{works with|GNU Forth}}
create ordinals s" first" 2, s" second" 2, s" third" 2, s" fourth" 2,
s" fifth" 2, s" sixth" 2, s" seventh" 2, s" eighth" 2,
s" ninth" 2, s" tenth" 2, s" eleventh" 2, s" twelfth" 2,
: ordinal ordinals swap 2 * cells + 2@ ;
create gifts s" A partridge in a pear tree." 2,
s" Two turtle doves and" 2,
s" Three French hens," 2,
s" Four calling birds," 2,
s" Five gold rings," 2,
s" Six geese a-laying," 2,
s" Seven swans a-swimming," 2,
s" Eight maids a-milking," 2,
s" Nine ladies dancing," 2,
s" Ten lords a-leaping," 2,
s" Eleven pipers piping," 2,
s" Twelve drummers drumming," 2,
: gift gifts swap 2 * cells + 2@ ;
: day
s" On the " type
dup ordinal type
s" day of Christmas, my true love sent to me:" type
cr
-1 swap -do
i gift type cr
1 -loop
cr
;
: main
12 0 do i day loop
;
main
bye
{{Out}}
On the first day of Christmas, my true love sent to me:
A partridge in a pear tree.
On the second day of Christmas, my true love sent to me:
Two turtle doves and
A partridge in a pear tree.
[...]
On the twelfth day of Christmas, my true love sent to me:
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five gold rings,
Four calling birds,
Three French hens,
Two turtle doves and
A partridge in a pear tree.
Fortran
{{works with|Fortran|FORTRAN|77}}
program twelve_days
character days(12)*8
data days/'first', 'second', 'third', 'fourth',
c 'fifth', 'sixth', 'seventh', 'eighth',
c 'ninth', 'tenth', 'eleventh', 'twelfth'/
character gifts(12)*27
data gifts/'A partridge in a pear tree.',
c 'Two turtle doves and',
c 'Three French hens,',
c 'Four calling birds,',
c 'Five gold rings,',
c 'Six geese a-laying,',
c 'Seven swans a-swimming,',
c 'Eight maids a-milking,',
c 'Nine ladies dancing,',
c 'Ten lords a-leaping,',
c 'Eleven pipers piping,',
c 'Twelve drummers drumming,'/
integer day, gift
do 10 day=1,12
write (*,*) 'On the ', trim(days(day)),
c ' day of Christmas, my true love sent to me:'
do 20 gift=day,1,-1
write (*,*) trim(gifts(gift))
20 continue
write(*,*)
10 continue
end
{{Out}}
On the first day of Christmas, my true love sent to me:
A partridge in a pear tree.
On the second day of Christmas, my true love sent to me:
Two turtle doves and
A partridge in a pear tree.
[...]
On the twelfth day of Christmas, my true love sent to me:
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five gold rings,
Four calling birds,
Three French hens,
Two turtle doves and
A partridge in a pear tree.
FreeBASIC
' version 10-01-2017
' compile with: fbc -s console
Dim As ULong d, r
Dim As String days(1 To ...) = { "first", "second", "third", "fourth", _
"fifth", "sixth", "seventh", "eighth", _
"ninth", "tenth", "eleventh", "twelfth" }
Dim As String gifts(1 To ...) = { "", " Two turtle doves", _
" Three french hens", " Four calling birds", _
" Five golden rings", " Six geese a-laying", _
" Seven swans a-swimming", " Eight maids a-milking", _
" Nine ladies dancing", " Ten lords a-leaping", _
" Eleven pipers piping", " Twelve drummers drumming" }
For d = 1 To 12
Print " On the " + days(d) + " day of Christmas"
Print " My true love gave to me:"
For r = d To 3 Step -1
Print gifts(r)
Next
' print " Two turtle doves" for the twelfth day and add "and" for the other days
If d > 1 Then
Print gifts(2); iif(d = 12, "", " and")
End If
' print "A partridge...", on the twelfth day print "And a partrige..."
Print " A" & IIf(d = 12, "nd a", "" ) & " partridge in a pear tree"
Print
Next
' empty keyboard buffer
While Inkey <> "" : Wend
Print : 'Print "hit any key to end program"
Sleep
End
{{out}}
On the first day of Christmas
My true love gave to me:
A partridge in a pear tree
On the second day of Christmas
My true love gave to me:
Two turtle doves and
A partridge in a pear tree
'''
On the twelfth day of Christmas
My true love gave to me:
Twelve drummers drumming
Eleven pipers piping
Ten lords a-leaping
Nine ladies dancing
Eight maids a-milking
Seven swans a-swimming
Six geese a-laying
Five golden rings
Four calling birds
Three french hens
Two turtle doves
And a partridge in a pear tree
Go
[https://play.golang.org/p/dnDyx8ee_G Go Playground]
package main
import (
"fmt"
)
func main() {
days := []string{"first", "second", "third", "fourth", "fifth", "sixth",
"seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth"}
gifts := []string{"A Patridge in a Pear Tree", "Two Turtle Doves and", "Three French Hens",
"Four Calling Birds", "Five Golden Rings", "Six Geese a Laying",
"Seven Swans a Swimming", "Eight Maids a Milking", "Nine Ladies Dancing",
"Ten Lords a Leaping", "Eleven Pipers Piping", "Twelve Drummers Drumming"}
for i := 0; i < 12; i++ {
fmt.Printf("On the %s day of Christmas,\n", days[i])
fmt.Println("My true love gave to me:")
for j := i; j >= 0; j-- {
fmt.Println(gifts[j])
}
fmt.Println()
}
}
Groovy
def presents = ['A partridge in a pear tree.', 'Two turtle doves', 'Three french hens', 'Four calling birds',
'Five golden rings', 'Six geese a-laying', 'Seven swans a-swimming', 'Eight maids a-milking',
'Nine ladies dancing', 'Ten lords a-leaping', 'Eleven pipers piping', 'Twelve drummers drumming']
['first', 'second', 'third', 'forth', 'fifth', 'sixth', 'seventh', 'eight', 'ninth', 'tenth', 'eleventh', 'Twelfth'].eachWithIndex{ day, dayIndex ->
println "On the $day day of Christmas"
println 'My true love gave to me:'
(dayIndex..0).each { p ->
print presents[p]
println p == 1 ? ' and' : ''
}
println()
}
Haskell
{{trans|F#}}
gifts :: [String]
gifts = [
"And a partridge in a pear tree!",
"Two turtle doves,",
"Three french hens,",
"Four calling birds,",
"FIVE GOLDEN RINGS,",
"Six geese a-laying,",
"Seven swans a-swimming,",
"Eight maids a-milking,",
"Nine ladies dancing,",
"Ten lords a-leaping,",
"Eleven pipers piping,",
"Twelve drummers drumming," ]
days :: [String]
days = [
"first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth",
"ninth", "tenth", "eleventh", "twelfth" ]
verseOfTheDay :: Int -> IO ()
verseOfTheDay day = do
putStrLn $ "On the " ++ days !! day ++ " day of Christmas my true love gave to me... "
mapM_ putStrLn [dayGift day d | d <- [day, day-1..0]]
putStrLn ""
where dayGift 0 _ = "A partridge in a pear tree!"
dayGift _ gift = gifts !! gift
main :: IO ()
main = mapM_ verseOfTheDay [0..11]
{{out}}
On the first day of Christmas my true love gave to me... A partridge in a pear tree! On the second day of Christmas my true love gave to me... Two turtle doves, And a partridge in a pear tree! On the third day of Christmas my true love gave to me... Three french hens, Two turtle doves, And a partridge in a pear tree! On the fourth day of Christmas my true love gave to me... Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree! On the fifth day of Christmas my true love gave to me... FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree! On the sixth day of Christmas my true love gave to me... Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree! On the seventh day of Christmas my true love gave to me... Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree! On the eighth day of Christmas my true love gave to me... Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree! On the ninth day of Christmas my true love gave to me... Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree! On the tenth day of Christmas my true love gave to me... Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree! On the eleventh day of Christmas my true love gave to me... Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree! On the twelfth day of Christmas my true love gave to me... Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree! ``` =={{header|Icon}} and {{header|Unicon}}== Works in both languages. ```unicon procedure main() days := ["first","second","third","fourth","fifth","sixth","seventh", "eighth","ninth","tenth","eleventh","twelveth"] gifts := ["A partridge in a pear tree.", "Two turtle doves and", "Three french hens,", "Four calling birds,", "Five golden rings,", "Six geese a-laying,", "Seven swans a-swimming,", "Eight maids a-milking,", "Nine ladies dancing,", "Ten lords a-leaping,", "Eleven pipers piping,", "Twelve drummers drumming,"] every write("\nOn the ",days[day := 1 to 12]," day of Christmas my true love gave to me:") do every write(" ",gifts[day to 1 by -1]) end ``` ## J ```j require 'strings' NB. not necessary for versions > j6 days=: ;:'first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth' gifts=: <;.2 ] 0 : 0 And a partridge in a pear tree. Two turtle doves, Three french hens, Four calling birds, Five golden rings, Six geese a-laying, Seven swans a-swimming, Eight maids a-milking, Nine ladies dancing, Ten lords a-leaping, Eleven pipers piping, Twelve drummers drumming, ) firstline=: 'On the ' , ,&(' day of Christmas, my true love gave to me',LF) chgFirstVerse=: rplc&('nd a';'')&.>@{. , }. makeVerses=: [: chgFirstVerse (firstline&.> days) ,&.> [: <@;@|.\ gifts"_ singCarol=: LF joinstring makeVerses ``` ## Java ```java public class TwelveDaysOfChristmas { final static String[] gifts = { "A partridge in a pear tree.", "Two turtle doves and", "Three french hens", "Four calling birds", "Five golden rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming", "And a partridge in a pear tree.", "Two turtle doves" }; final static String[] days = { "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "Twelfth" }; public static void main(String[] args) { for (int i = 0; i < days.length; i++) { System.out.printf("%nOn the %s day of Christmas%n", days[i]); System.out.println("My true love gave to me:"); for (int j = i; j >= 0; j--) System.out.println(gifts[i == 11 && j < 2 ? j + 12 : j]); } } } ``` ## JavaScript ```JavaScript var days = [ 'first', 'second', 'third', 'fourth', 'fifth', 'sixth', 'seventh', 'eighth', 'ninth', 'tenth', 'eleventh', 'twelfth', ]; var gifts = [ "A partridge in a pear tree", "Two turtle doves", "Three french hens", "Four calling birds", "Five golden rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming" ]; var lines, verses = [], song; for ( var i = 0; i < 12; i++ ) { lines = []; lines[0] = "On the " + days[i] + " day of Christmas, my true love gave to me"; var j = i + 1; var k = 0; while ( j-- > 0 ) lines[++k] = gifts[j]; verses[i] = lines.join('\n'); if ( i == 0 ) gifts[0] = "And a partridge in a pear tree"; } song = verses.join('\n\n'); document.write(song); ``` Alternatively, in a functional style of JavaScript, we can define the ancient song "strPrepn the lstOrdinal[i] strUnit of strHoliday" as an expression, and return that expression in a human-legible and machine-parseable JSON string translation, for further analysis and processing :-) ```JavaScript JSON.stringify( (function ( strPrepn, strHoliday, strUnit, strRole, strProcess, strRecipient ) { var lstOrdinal = 'first second third fourth fifth sixth\ seventh eighth ninth tenth eleventh twelfth' .split(/\s+/), lngUnits = lstOrdinal.length, lstGoods = 'A partridge in a pear tree.\ Two turtle doves\ Three french hens\ Four calling birds\ Five golden rings\ Six geese a-laying\ Seven swans a-swimming\ Eight maids a-milking\ Nine ladies dancing\ Ten lords a-leaping\ Eleven pipers piping\ Twelve drummers drumming' .split(/\s{2,}/), lstReversed = (function () { var lst = lstGoods.slice(0); return (lst.reverse(), lst); })(), strProvenance = [strRole, strProcess, strRecipient + ':'].join(' '), strPenultimate = lstReversed[lngUnits - 2] + ' and', strFinal = lstGoods[0]; return lstOrdinal.reduce( function (sofar, day, i) { return sofar.concat( [ [ [ // abstraction of line 1 strPrepn, 'the', lstOrdinal[i], strUnit, 'of', strHoliday ].join(' '), strProvenance ].concat( // reversed descent through memory (i > 1 ? [lstGoods[i]] : []).concat( lstReversed.slice( lngUnits - i, lngUnits - 2 ) ).concat( // penultimate line ends with 'and' [ strPenultimate, strFinal ].slice(i ? 0 : 1) ) ) ] ); }, [] ); })( 'On', 'Christmas', 'day', 'my true love', 'gave to', 'me' ), null, 2 ); ``` Note that the Google Closure compiler's translation of this would be half the size, but rather less legible. (It does make interesting suggestions though – the semi-colon segmentation of the verses below is a trick that might be worth remembering). ```JavaScript JSON.stringify(function (h, k, l, f, m, n) { var c = "first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth" .split(" "), d = c.length, e = "A partridge in a pear tree.;Two turtle doves;Three french hens;Four calling birds;Five golden rings;Six geese a-laying;Seven swans a-swimming;Eight maids a-milking;Nine ladies dancing;Ten lords a-leaping;Eleven pipers piping;Twelve drummers drumming" .split(";"), g = function () { var b = e.slice(0); return b.reverse(), b; }(), p = [f, m, n + ":"].join(" "), q = g[d - 2] + " and", r = e[0]; return c.reduce(function (b, f, a) { return b.concat([[[h, "the", c[a], l, "of", k].join(" "), p].concat((1 < a ? [e[a]] : []).concat(g.slice(d - a, d - 2)).concat([q, r].slice(a ? 0 : 1)))]); }, []); }("On", "Christmas", "day", "my true love", "gave to", "me"), null, 2); ``` Formatted JSON output (the expanded and Closure-compiled versions above both yield the same output). ```JavaScript [ [ "On the first day of Christmas", "my true love gave to me:", "A partridge in a pear tree." ], [ "On the second day of Christmas", "my true love gave to me:", "Two turtle doves and", "A partridge in a pear tree." ], [ "On the third day of Christmas", "my true love gave to me:", "Three french hens", "Two turtle doves and", "A partridge in a pear tree." ], [ "On the fourth day of Christmas", "my true love gave to me:", "Four calling birds", "Three french hens", "Two turtle doves and", "A partridge in a pear tree." ], [ "On the fifth day of Christmas", "my true love gave to me:", "Five golden rings", "Four calling birds", "Three french hens", "Two turtle doves and", "A partridge in a pear tree." ] //... etc. ] ``` ## jq ```jq [ "st","nd","rd" ] as $nth | [ "a partridge in a pear tree.", "turtle doves", "French hens", "calling birds", "gold rings", "geese a-laying", "swans a-swimming", "maids a-milking", "ladies dancing", "lords a-leaping", "pipers piping", "drummers drumming" ] as $gifts | range(12) | . as $i | "On the " + (.+1|tostring)+if $i < ($nth|length) then $nth[$i] else "th" end + " day of Christmas, my true love gave to me\n" + if $i > 0 then [[range($i)]|reverse[]|((.+2|tostring) + " " + $gifts[.+1] + if $i > 1 then "," else "" end +"\n")]|join("") + "and " else "" end + $gifts[0] + "\n" ``` Run with ```txt jq -rnf programfile.jq ``` to yield this result: {{Out}} ```txt On the 1st day of Christmas, my true love gave to me a partridge in a pear tree. On the 2nd day of Christmas, my true love gave to me 2 turtle doves and a partridge in a pear tree. On the 3rd day of Christmas, my true love gave to me 3 French hens, 2 turtle doves, and a partridge in a pear tree. [...] On the 12th day of Christmas, my true love gave to me 12 drummers drumming, 11 pipers piping, 10 lords a-leaping, 9 ladies dancing, 8 maids a-milking, 7 swans a-swimming, 6 geese a-laying, 5 gold rings, 4 calling birds, 3 French hens, 2 turtle doves, and a partridge in a pear tree. ``` ## Jsish Based on Javascript entry, almost identical, added unitTest. ```javascript #!/usr/bin/env jsish "use strict"; /* Twelve Days Of Christmas, in Jsish */ var days = [ 'first', 'second', 'third', 'fourth', 'fifth', 'sixth', 'seventh', 'eighth', 'ninth', 'tenth', 'eleventh', 'twelfth' ]; var gifts = [ "A partridge in a pear tree", "Two turtle doves", "Three french hens", "Four calling birds", "Five golden rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming" ]; var lines, verses = [], song; for ( var i = 0; i < 12; i++ ) { lines = []; lines[0] = "On the " + days[i] + " day of Christmas, my true love gave to me"; var j = i + 1; var k = 0; while ( j-- > 0 ) lines[++k] = gifts[j]; verses[i] = lines.join('\n'); if ( i == 0 ) gifts[0] = "And a partridge in a pear tree"; } song = verses.join('\n\n'); ;song; /* =!EXPECTSTART!= song ==> On the first day of Christmas, my true love gave to me A partridge in a pear tree On the second day of Christmas, my true love gave to me Two turtle doves And a partridge in a pear tree On the third day of Christmas, my true love gave to me Three french hens Two turtle doves And a partridge in a pear tree On the fourth day of Christmas, my true love gave to me Four calling birds Three french hens Two turtle doves And a partridge in a pear tree On the fifth day of Christmas, my true love gave to me Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree On the sixth day of Christmas, my true love gave to me Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree On the seventh day of Christmas, my true love gave to me Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree On the eighth day of Christmas, my true love gave to me Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree On the ninth day of Christmas, my true love gave to me Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree On the tenth day of Christmas, my true love gave to me Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree On the eleventh day of Christmas, my true love gave to me Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree On the twelfth day of Christmas, my true love gave to me Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree =!EXPECTEND!= */ ``` {{out}} The verses are in the unitTest. --U mode to show the echo mode output skipped here. ```txt prompt$ jsish -u twelveDaysOfChristmas.jsi [PASS] twelveDaysOfChristmas.jsi ``` ## Julia ```julia # v0.6.0 function printlyrics() const gifts = split(""" A partridge in a pear tree. Two turtle doves Three french hens Four calling birds Five golden rings Six geese a-laying Seven swans a-swimming Eight maids a-milking Nine ladies dancing Ten lords a-leaping Eleven pipers piping Twelve drummers drumming """, '\n') const days = split(""" first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth""") for (n, day) in enumerate(days) g = gifts[n:-1:1] print("\nOn the $day day of Christmas\nMy true love gave to me:\n") if n == 1 print(join(g[1:end], '\n'), '\n') else print(join(g[1:end-1], '\n'), " and\n", g[end], '\n') end end end printlyrics() ``` {{out}} ```txt On the first day of Christmas My true love gave to me: A partridge in a pear tree. On the second day of Christmas My true love gave to me: Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas My true love gave to me: Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree. ``` ## Kotlin {{trans|C#}} ```scala enum class Day { first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth; val header = "On the " + this + " day of Christmas, my true love sent to me\n\t" } fun main(x: Array) { val gifts = listOf("A partridge in a pear tree", "Two turtle doves and", "Three french hens", "Four calling birds", "Five golden rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming") Day.values().forEachIndexed { i, d -> println(d.header + gifts.slice(0..i).asReversed().joinToString("\n\t")) } } ``` ## Logo ```logo make "numbers [first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth] make "gifts [[And a partridge in a pear tree] [Two turtle doves] [Three French hens] [Four calling birds] [Five gold rings] [Six geese a-laying] [Seven swans a-swimming] [Eight maids a-miling] [Nine ladies dancing] [Ten lords a-leaping] [Eleven pipers piping] [Twelve drummers drumming]] to nth :n print (sentence [On the] (item :n :numbers) [day of Christmas, my true love sent to me]) end nth 1 print [A partridge in a pear tree] for [d 2 12] [ print [] nth :d for [g :d 1] [ print item :g gifts ] ] bye ``` {{Out}} ```txt On the first day of Christmas, my true love sent to me: A partridge in a pear tree. On the second day of Christmas, my true love sent to me: Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas, my true love sent to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves and A partridge in a pear tree. ``` ## LOLCODE {{works with|LCI 0.10}} CAN HAS STDIO? HAI 1.2 I HAS A Dayz ITZ A BUKKIT Dayz HAS A SRS 1 ITZ "first" Dayz HAS A SRS 2 ITZ "second" Dayz HAS A SRS 3 ITZ "third" Dayz HAS A SRS 4 ITZ "fourth" Dayz HAS A SRS 5 ITZ "fifth" Dayz HAS A SRS 6 ITZ "sixth" Dayz HAS A SRS 7 ITZ "seventh" Dayz HAS A SRS 8 ITZ "eighth" Dayz HAS A SRS 9 ITZ "ninth" Dayz HAS A SRS 10 ITZ "tenth" Dayz HAS A SRS 11 ITZ "eleventh" Dayz HAS A SRS 12 ITZ "twelfth" I HAS A Prezents ITZ A BUKKIT Prezents HAS A SRS 1 ITZ "A partridge in a pear tree" Prezents HAS A SRS 2 ITZ "Two turtle doves" Prezents HAS A SRS 3 ITZ "Three French hens" Prezents HAS A SRS 4 ITZ "Four calling birds" Prezents HAS A SRS 5 ITZ "Five gold rings" Prezents HAS A SRS 6 ITZ "Six geese a-laying" Prezents HAS A SRS 7 ITZ "Seven swans a-swimming" Prezents HAS A SRS 8 ITZ "Eight maids a-milking" Prezents HAS A SRS 9 ITZ "Nine ladies dancing" Prezents HAS A SRS 10 ITZ "Ten lords a-leaping" Prezents HAS A SRS 11 ITZ "Eleven pipers piping" Prezents HAS A SRS 12 ITZ "Twelve drummers drumming" IM IN YR Outer UPPIN YR i WILE DIFFRINT i AN 12 I HAS A Day ITZ SUM OF i AN 1 VISIBLE "On the " ! VISIBLE Dayz'Z SRS Day ! VISIBLE " day of Christmas, my true love sent to me" IM IN YR Inner UPPIN YR j WILE DIFFRINT j AN Day I HAS A Count ITZ DIFFERENCE OF Day AN j VISIBLE Prezents'Z SRS Count IM OUTTA YR Inner BOTH SAEM i AN 0 O RLY? YA RLY Prezents'Z SRS 1 R "And a partridge in a pear tree" OIC DIFFRINT i AN 11 O RLY? YA RLY VISIBLE "" OIC IM OUTTA YR Outer KTHXBYE ``` {{Out}} ```txt On the first day of Christmas, my true love sent to me: A partridge in a pear tree. On the second day of Christmas, my true love sent to me: Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas, my true love sent to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves and A partridge in a pear tree. ``` ## Lua ```Lua local days = { 'first', 'second', 'third', 'fourth', 'fifth', 'sixth', 'seventh', 'eighth', 'ninth', 'tenth', 'eleventh', 'twelfth', } local gifts = { "A partridge in a pear tree", "Two turtle doves", "Three french hens", "Four calling birds", "Five golden rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming", } local verses = {} for i = 1, 12 do local lines = {} lines[1] = "On the " .. days[i] .. " day of Christmas, my true love gave to me" local j = i local k = 2 repeat lines[k] = gifts[j] k = k + 1 j = j - 1 until j == 0 verses[i] = table.concat(lines, '\n') end print(table.concat(verses, '\n\n')) ``` ## Maple ```maple gifts := ["Twelve drummers drumming", "Eleven pipers piping", "Ten lords a-leaping", "Nine ladies dancing", "Eight maids a-milking", "Seven swans a-swimming", "Six geese a-laying", "Five golden rings", "Four calling birds", "Three french hens", "Two turtle doves and", "A partridge in a pear tree"]: days := ["first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth"]: for i to 12 do printf("On the %s day of Christmas\nMy true love gave to me:\n", days[i]); for j from 13-i to 12 do printf("%s\n", gifts[j]); end do; printf("\n"); end do; ``` {{out}} ```txt On the first day of Christmas My true love gave to me: A partridge in a pear tree On the second day of Christmas My true love gave to me: Two turtle doves and A partridge in a pear tree On the third day of Christmas My true love gave to me: Three french hens Two turtle doves and A partridge in a pear tree ... On the eleventh day of Christmas My true love gave to me: Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the twelfth day of Christmas My true love gave to me: Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree ``` ## Mathematica ```Mathematica daysarray = {"first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth"}; giftsarray = {"And a partridge in a pear tree.", "Two turtle doves", "Three french hens", "Four calling birds", "FIVE GOLDEN RINGS", "Six geese a-laying", "Seven swans a-swimming,", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming"}; Do[Print[StringForm[ "On the `1` day of Christmas, my true love gave to me: `2`", daysarray[[i]], If[i == 1, "A partridge in a pear tree.", Row[Reverse[Take[giftsarray, i]], ","]]]], {i, 1, 12}] ``` {{out}} ```txt On the first day of Christmas My true love gave to me: A partridge in a pear tree. On the second day of Christmas My true love gave to me: Two turtle doves and A partridge in a pear tree. On the third day of Christmas My true love gave to me: Three french hens Two turtle doves and A partridge in a pear tree. [ ... ] On the eleventh day of Christmas My true love gave to me: Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming, Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree. On the Twelfth day of Christmas My true love gave to me: Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming, Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree. ``` ## Snobol {{Works with|CSNOBOL4}} ```snobol DAYS = ARRAY('12') DAYS<1> = 'first' DAYS<2> = 'second' DAYS<3> = 'third' DAYS<4> = 'fourth' DAYS<5> = 'fifth' DAYS<6> = 'sixth' DAYS<7> = 'seventh' DAYS<8> = 'eighth' DAYS<9> = 'ninth' DAYS<10> = 'tenth' DAYS<11> = 'eleventh' DAYS<12> = 'twelfth' GIFTS = ARRAY('12') GIFTS<1> = 'A partridge in a pear tree.' GIFTS<2> = 'Two turtle doves and' GIFTS<3> = 'Three French hens,' GIFTS<4> = 'Four calling birds,' GIFTS<5> = 'Five gold rings,' GIFTS<6> = 'Six geese a-laying,' GIFTS<7> = 'Seven swans a-swimming,' GIFTS<8> = 'Eight maids a-milking,' GIFTS<9> = 'Nine ladies dancing,' GIFTS<10> = 'Ten lords a-leaping,' GIFTS<11> = 'Eleven pipers piping,' GIFTS<12> = 'Twelve drummers drumming,' DAY = 1 OUTER LE(DAY,12) :F(END) INTRO = 'On the NTH day of Christmas, my true love sent to me:' INTRO 'NTH' = DAYSOn the first day of Christmas, my true love gave to me: A partridge in a pear tree. On the second day of Christmas, my true love gave to me: Two turtle doves, And a partridge in a pear tree. On the third day of Christmas, my true love gave to me: Three french hens, Two turtle doves, And a partridge in a pear tree. On the fourth day of Christmas, my true love gave to me: Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the fifth day of Christmas, my true love gave to me: FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the sixth day of Christmas, my true love gave to me: Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the seventh day of Christmas, my true love gave to me: Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the eighth day of Christmas, my true love gave to me: Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the ninth day of Christmas, my true love gave to me: Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the tenth day of Christmas, my true love gave to me: Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the eleventh day of Christmas, my true love gave to me: Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the twelfth day of Christmas, my true love gave to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GOLDEN RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. ``` ## MiniScript ```MiniScript days = ["first","second","third", "fourth","fifth","sixth", "seventh","eigth","nineth","tenth","eleventh","twelfth"] gifts = ["A partridge in a pear tree.","Two turtle doves, and", "Three French hens,","Four calling birds,", "Five gold rings,","Six geese a-laying,", "Seven swans a-swimming,","Eight maids a-milking,", "Nine ladies dancing,","Ten lords a-leaping,", "Eleven pipers piping,","Twelve drummers drumming,"] for i in range(0,11) print "On the " + days[i] + " day of Christmas," print "my true love gave to me," for j in range(i,0) print " " + gifts[j] end for print " ----------" end for ``` {{out}} ```txt On the first day of Christmas, my true love gave to me, A partridge in a pear tree. ----------On the twelfth day of Christmas, my true love gave to me, Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves, and A partridge in a pear tree. ---------- ``` ## Nim {{trans|Python}} ```nim import strutils, algorithm const gifts = """A partridge in a pear tree. Two turtle doves Three french hens Four calling birds Five golden rings Six geese a-laying Seven swans a-swimming Eight maids a-milking Nine ladies dancing Ten lords a-leaping Eleven pipers piping Twelve drummers drumming""".splitLines() days = "first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth".split(' ') for n, day in days: var g = (gifts[0..n]) reverse(g) echo "\nOn the ", day, " day of Christmas\nMy true love gave to me:\n" & g[0 .. -2].join("\n") & (if n > 0: " and\n" & g[g.high] else: capitalize(g[g.high])) ``` ## Objeck {{trans|C sharp|C#}} ```objeck class TwelveDaysOfChristmas { function : Main(args : String[]) ~ Nil { days := ["first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth"]; gifts := ["A partridge in a pear tree", "Two turtle doves", "Three french hens", "Four calling birds", "Five golden rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming"]; for(i := 0; i < days->Size(); i+=1;) { IO.Console->Print("On the ")->Print(days[i])->PrintLine(" day of Christmas, my true love gave to me"); j := i + 1; while(j > 0 ) { j -= 1; gifts[j]->PrintLine(); }; IO.Console->PrintLine(); if (i = 0) { gifts[0] := "And a partridge in a pear tree"; }; }; } } ``` ## PARI/GP ```parigp days=["first","second","third","fourth","fifth","sixth","seventh","eighth","ninth","tenth","eleventh","twelfth"]; gifts=["And a partridge in a pear tree.", "Two turtle doves", "Three french hens", "Four calling birds", "Five golden rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming"]; { for(i=1,#days, print("On the "days[i]" day of Christmas, my true love gave to me:"); forstep(j=i,2,-1,print("\t"gifts[j]", ")); print(if(i==1,"\tA partridge in a pear tree.",Str("\t",gifts[1]))) ) } ``` {{out}} ```txt On the first day of Christmas, my true love gave to me: A partridge in a pear tree. On the second day of Christmas, my true love gave to me: Two turtle doves, And a partridge in a pear tree. [...] On the twelfth day of Christmas, my true love gave to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five golden rings, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. ``` ## Pascal This should work with any modern Pascal implementation that has a '''string''' type, e.g. [[Free Pascal]]. ```pascal program twelve_days(output); const days: array[1..12] of string = ( 'first', 'second', 'third', 'fourth', 'fifth', 'sixth', 'seventh', 'eighth', 'ninth', 'tenth', 'eleventh', 'twelfth' ); gifts: array[1..12] of string = ( 'A partridge in a pear tree.', 'Two turtle doves and', 'Three French hens,', 'Four calling birds,', 'Five gold rings,', 'Six geese a-laying,', 'Seven swans a-swimming,', 'Eight maids a-milking,', 'Nine ladies dancing,', 'Ten lords a-leaping,', 'Eleven pipers piping,', 'Twelve drummers drumming,' ); var day, gift: integer; begin for day := 1 to 12 do begin writeln('On the ', days[day], ' day of Christmas, my true love sent to me:'); for gift := day downto 1 do writeln(gifts[gift]); writeln end end. ``` {{Out}} ```txt On the first day of Christmas, my true love sent to me: A partridge in a pear tree. On the second day of Christmas, my true love sent to me: Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas, my true love sent to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves and A partridge in a pear tree. ``` Here's a version that works in ISO Standard Pascal, albeit with extraneous spaces in the output: ```pascal program twelve_days_iso(output); const days: array[1..12, 1..8] of char = ( 'first ', 'second ', 'third ', 'fourth ', 'fifth ', 'sixth ', 'seventh ', 'eighth ', 'ninth ', 'tenth ', 'eleventh', 'twelfth ' ); gifts: array[1..12, 1..27] of char = ( 'A partridge in a pear tree.', 'Two turtle doves and ', 'Three French hens, ', 'Four calling birds, ', 'Five gold rings, ', 'Six geese a-laying, ', 'Seven swans a-swimming, ', 'Eight maids a-milking, ', 'Nine ladies dancing, ', 'Ten lords a-leaping, ', 'Eleven pipers piping, ', 'Twelve drummers drumming, ' ); var day, gift: integer; begin for day := 1 to 12 do begin writeln('On the ', days[day], ' day of Christmas, my true love gave to me:'); for gift := day downto 1 do writeln(gifts[gift]); writeln end end. ``` {{Out}} ```txt On the first day of Christmas, my true love gave to me: A partridge in a pear tree. On the second day of Christmas, my true love gave to me: Two turtle doves and A partridge in a pear tree. ``` [...] ```txt On the twelfth day of Christmas, my true love gave to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves and A partridge in a pear tree. ``` ## Perl ```perl use v5.10; my @days = qw{ first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth }; chomp ( my @gifts = grep { /\S/ } ); while ( my $day = shift @days ) { say "On the $day day of Christmas,\nMy true love gave to me:"; say for map { $day eq 'first' ? s/And a/A/r : $_ } @gifts[@days .. @gifts-1]; say ""; } __DATA__ Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree. ``` {{out}} ```txt On the first day of Christmas, My true love gave to me: A partridge in a pear tree. On the second day of Christmas, My true love gave to me: Two turtle doves And a partridge in a pear tree. ... On the twelfth day of Christmas, My true love gave to me: Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree. ``` ## Perl 6 ```perl6>my @days = $d { say ''; nth($d); say @gifts[$_] for $d ... 0; } ``` {{out}} ```txt On the first day of Christmas, my true love gave to me: A partridge in a pear tree. On the second day of Christmas, my true love gave to me: Two turtle doves, And a partridge in a pear tree. On the third day of Christmas, my true love gave to me: Three french hens, Two turtle doves, And a partridge in a pear tree. On the fourth day of Christmas, my true love gave to me: Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. . . . On the twelfth day of Christmas, my true love gave to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five golden rings, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. ``` ## Phix ```Phix constant days = {"first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth"}, gifts = {"A partridge in a pear tree.\n", "Two turtle doves, and\n", "Three French hens,\n", "Four calling birds,\n", "Five gold rings,\n", "Six geese a-laying,\n", "Seven swans a-swimming,\n", "Eight maids a-milking,\n", "Nine ladies dancing,\n", "Ten lords a-leaping,\n", "Eleven pipers piping,\n", "Twelve drummers drumming,\n"} for i=1 to 12 do printf(1,"On the %s day of Christmas,\nmy true love gave to me:\n",{days[i]}) for j=i to 1 by -1 do printf(1,gifts[j]) end for end for ``` ## PicoLisp ```PicoLisp (de days first second third fourth fifth sixth seventh eight ninth tenth eleventh twelfth ) (de texts "A partridge in a pear tree." "Two turtle doves and" "Three french hens" "Four calling birds" "Five golden rings" "Six geese a-laying" "Seven swans a-swimming" "Eight maids a-milking" "Nine ladies dancing" "Ten lords a-leaping" "Eleven pipers piping" "Twelve drummers drumming" ) (for (X . Day) days (prinl "On the " Day " day of Christmas") (prinl "My true love game to me:") (for (Y X (gt0 Y) (dec Y)) (prinl (if (and (= 12 X) (= 1 Y)) "And a partridge in a pear tree." (get texts Y)) ) ) (prinl) ) (bye) ``` ## PHP ```PHP = 0 ) { $lines[++$k] = $gifts[$j]; $j--; } $verses[$i] = implode(PHP_EOL, $lines); if ( $i == 0 ) $gifts[0] = "And a partridge in a pear tree"; } echo implode(PHP_EOL . PHP_EOL, $verses); ?> ``` Or using recursion: ```PHP "A partridge in a pear tree", 'second' => "Two turtle doves", 'third' => "Three french hens", 'fourth' => "Four calling birds", 'fifth' => "Five golden rings", 'sixth' => "Six geese a-laying", 'seventh' => "Seven swans a-swimming", 'eighth' => "Eight maids a-milking", 'ninth' => "Nine ladies dancing", 'tenth' => "Ten lords a-leaping", 'eleventh' => "Eleven pipers piping", 'twelfth' => "Twelve drummers drumming" ); function print_day( $gifts ) { echo "On the ", key( $gifts ), " day of Xmas, my true love gave to me", PHP_EOL; foreach( $gifts as $day => $gift ) { echo $gift, $day == 'second' ? ' and' : '', PHP_EOL; } echo PHP_EOL; } function twelve_days( $gifts ) { if ( ! empty( $gifts ) ) { twelve_days( array_slice( $gifts, 1, null, true ) ); print_day( $gifts ); } } twelve_days( array_reverse( $gifts, true ) ); ``` {{Out}} On the first day of Xmas, my true love gave to me A partridge in a pear tree On the second day of Xmas, my true love gave to me Two turtle doves and A partridge in a pear tree On the third day of Xmas, my true love gave to me Three french hens Two turtle doves and A partridge in a pear tree On the fourth day of Xmas, my true love gave to me Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the fifth day of Xmas, my true love gave to me Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the sixth day of Xmas, my true love gave to me Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the seventh day of Xmas, my true love gave to me Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the eighth day of Xmas, my true love gave to me Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the ninth day of Xmas, my true love gave to me Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the tenth day of Xmas, my true love gave to me Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the eleventh day of Xmas, my true love gave to me Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the twelfth day of Xmas, my true love gave to me Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree ``` ## PowerShell ```PowerShell $days = @{ 1 = "first"; 2 = "second"; 3 = "third"; 4 = "fourth"; 5 = "fifth"; 6 = "sixth"; 7 = "seventh"; 8 = "eight"; 9 = "ninth"; 10 = "tenth"; 11 = "eleventh"; 12 = "twelfth"; } $gifts = @{ 1 = 'A partridge in a pear tree'; 2 = 'Two turtle doves'; 3 = 'Three french hens'; 4 = 'Four calling birds'; 5 = 'Five golden rings'; 6 = 'Six geese a-laying'; 7 = 'Seven swans a-swimming'; 8 = 'Eight maids a-milking'; 9 = 'Nine ladies dancing'; 10 = 'Ten lords a-leaping'; 11 = 'Eleven pipers piping'; 12 = 'Twelve drummers drumming'; } 1 .. 12 | % { "On the $($days[$_]) day of Christmas`nMy true love gave to me" $_ .. 1 | % { $gift = $gifts[$_] if ($_ -eq 2) { $gift += " and" } $gift } "" } ``` {{out}} ```txt On the first day of Christmas My true love gave to me A partridge in a pear tree On the second day of Christmas My true love gave to me Two turtle doves and A partridge in a pear tree ... On the twelfth day of Christmas My true love gave to me Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree ``` ## Prolog ```prolog day(1, 'first'). day(2, 'second'). day(3, 'third'). day(4, 'fourth'). day(5, 'fifth'). day(6, 'sixth'). day(7, 'seventh'). day(8, 'eighth'). day(9, 'ninth'). day(10, 'tenth'). day(11, 'eleventh'). day(12, 'twelfth'). gift(1, 'A partridge in a pear tree.'). gift(2, 'Two turtle doves and'). gift(3, 'Three French hens,'). gift(4, 'Four calling birds,'). gift(5, 'Five gold rings,'). gift(6, 'Six geese a-laying,'). gift(7, 'Seven swans a-swimming,'). gift(8, 'Eight maids a-milking,'). gift(9, 'Nine ladies dancing,'). gift(10, 'Ten lords a-leaping,'). gift(11, 'Eleven pipers piping,'). gift(12, 'Twelve drummers drumming,'). giftsFor(0, []) :- !. giftsFor(N, [H|T]) :- gift(N, H), M is N-1, giftsFor(M,T). writeln(S) :- write(S), write('\n'). writeList([]) :- writeln(''), !. writeList([H|T]) :- writeln(H), writeList(T). writeGifts(N) :- day(N, Nth), write('On the '), write(Nth), writeln(' day of Christmas, my true love sent to me:'), giftsFor(N,L), writeList(L). writeLoop(0) :- !. writeLoop(N) :- Day is 13 - N, writeGifts(Day), M is N - 1, writeLoop(M). main :- writeLoop(12), halt. ``` {{Out}} ```txt On the first day of Christmas, my true love sent to me: A partridge in a pear tree. On the second day of Christmas, my true love sent to me: Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas, my true love sent to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves and A partridge in a pear tree. ``` ## PureBasic ```PureBasic #TXT$ = "On the * day of Christmas, my true love sent to me:" days$ = ~"first\nsecond\nthird\nfourth\nfifth\nsixth\nseventh\neighth\nninth\ntenth\neleventh\ntwelfth\n" gifts$= ~"Twelve drummers drumming,\nEleven pipers piping,\nTen lords a-leaping,\nNine ladies dancing,\n"+ ~"Eight maids a-milking,\nSeven swans a-swimming,\nSix geese a-laying,\nFive golden rings,\n"+ ~"Four calling birds,\nThree french hens,\nTwo turtle doves,\nA partridge in a pear tree.\n" Define I.i, J.i If OpenConsole("The twelve days of Christmas") For I = 1 To 12 PrintN(ReplaceString(#TXT$,"*",StringField(days$,I,~"\n"))) For J = 13-I To 12 PrintN(" -> "+StringField(gifts$,J,~"\n")) Next J Next I Input() EndIf ``` {{out}} ```txt On the first day of Christmas, my true love sent to me: -> A partridge in a pear tree. On the second day of Christmas, my true love sent to me: -> Two turtle doves, -> A partridge in a pear tree. . . . On the eleventh day of Christmas, my true love sent to me: -> Eleven pipers piping, -> Ten lords a-leaping, -> Nine ladies dancing, -> Eight maids a-milking, -> Seven swans a-swimming, -> Six geese a-laying, -> Five golden rings, -> Four calling birds, -> Three french hens, -> Two turtle doves, -> A partridge in a pear tree. On the twelfth day of Christmas, my true love sent to me: -> Twelve drummers drumming, -> Eleven pipers piping, -> Ten lords a-leaping, -> Nine ladies dancing, -> Eight maids a-milking, -> Seven swans a-swimming, -> Six geese a-laying, -> Five golden rings, -> Four calling birds, -> Three french hens, -> Two turtle doves, -> A partridge in a pear tree. ``` ## Python ```python gifts = '''\ A partridge in a pear tree. Two turtle doves Three french hens Four calling birds Five golden rings Six geese a-laying Seven swans a-swimming Eight maids a-milking Nine ladies dancing Ten lords a-leaping Eleven pipers piping Twelve drummers drumming'''.split('\n') days = '''first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth'''.split() for n, day in enumerate(days, 1): g = gifts[:n][::-1] print(('\nOn the %s day of Christmas\nMy true love gave to me:\n' % day) + '\n'.join(g[:-1]) + (' and\n' + g[-1] if n > 1 else g[-1].capitalize())) ``` {{out}} ```txt On the first day of Christmas My true love gave to me: A partridge in a pear tree. On the second day of Christmas My true love gave to me: Two turtle doves and A partridge in a pear tree. On the third day of Christmas My true love gave to me: Three french hens Two turtle doves and A partridge in a pear tree. On the fourth day of Christmas My true love gave to me: Four calling birds Three french hens Two turtle doves and A partridge in a pear tree. . . . On the twelfth day of Christmas My true love gave to me: Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree. ``` ## Racket This version: * doesn't capitalise the word '''Twelfth''' * capitalises the '''French''' (in French hen) * capitalised '''True Love''' as it may save me a lot of grief when I get home. * British Variant: changes '''golden''' to '''go-old''' rings. Anyone who still has enough breath left to sing the second syllable after sustaining the first syllable of '''golden''' simply wasn't making enough effort in the first place. * British Variant: capitalises '''FIVE GO-OLD RINGS''' since it needs to be sung at top volume. If you want to change this back; the source is there. But I guarantee you won't have as much fun singing it. ```racket #lang racket (define (ordinal-text d) (vector-ref (vector "zeroth" "first" "second" "third" "fourth" "fifth" "sixth" "seventh" "eighth" "ninth" "tenth" "eleventh" "twelfth") d)) (define (on-the... day) (printf "On the ~a day of Christmas,~%" (ordinal-text day)) (printf "My True Love gave to me,~%")) (define (prezzy prezzy-line day) (match prezzy-line [1 (string-append (if (= day 1) "A " "And a")" partridge in a pear tree")] [2 "Two turtle doves"] [3 "Three French hens"] [4 "Four calling birds"] [5 "FIVE GO-OLD RINGS"] [6 "Six geese a-laying"] [7 "Seven swans a-swimming"] [8 "Eight maids a-milking"] [9 "Nine ladies dancing"] [10 "Ten lords a-leaping"] [11 "Eleven pipers piping"] [12 "Twelve drummers drumming"])) (define (line-end prezzy-line day) (match* (day prezzy-line) [(12 1) "."] [(x 1) ".\n"] [(_ _) ","])) (for ((day (sequence-map add1 (in-range 12))) #:when (on-the... day) (prezzy-line (in-range day 0 -1))) (printf "~a~a~%" (prezzy prezzy-line day) (line-end prezzy-line day))) ``` {{out}} ```txt On the first day of Christmas, My True Love gave to me, A partridge in a pear tree. On the second day of Christmas, My True Love gave to me, Two turtle doves, And a partridge in a pear tree. On the third day of Christmas, My True Love gave to me, Three french hens, Two turtle doves, And a partridge in a pear tree. On the fourth day of Christmas, My True Love gave to me, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the fifth day of Christmas, My True Love gave to me, FIVE GO-OLD RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the sixth day of Christmas, My True Love gave to me, Six geese a-laying, FIVE GO-OLD RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. On the seventh day of Christmas, ... On the eighth day of Christmas, ... On the ninth day of Christmas, ... On the tenth day of Christmas, ... On the eleventh day of Christmas, ... On the twelfth day of Christmas, My True Love gave to me, Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, FIVE GO-OLD RINGS, Four calling birds, Three french hens, Two turtle doves, And a partridge in a pear tree. ``` ## REXX This version: ::* doesn't capitalize the word '''Twelfth''' ::* capitalizes the '''French''' (in French hen) ::* capitalized '''True Love''' as it (may) refer to a deity ::* added indentation to make verses resemble song lyrics ```rexx /*REXX program displays the verses of the song: "The 12 days of Christmas". */ ordD= 'first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth' pad= left('', 20) /*used for indenting the shown verses. */ @.1= 'A partridge in a pear-tree.'; @.7 = "Seven swans a-swimming," @.2= 'Two Turtle Doves, and' ; @.8 = "Eight maids a-milking," @.3= 'Three French Hens,' ; @.9 = "Nine ladies dancing," @.4= 'Four Calling Birds,' ; @.10= "Ten lords a-leaping," @.5= 'Five Golden Rings,' ; @.11= "Eleven pipers piping," @.6= 'Six geese a-laying,' ; @.12= "Twelve drummers drumming," do day=1 for 12 say pad 'On the' word(ordD, day) "day of Christmas" /*display line 1 prologue.*/ say pad 'My True Love gave to me:' /* " " 2 " */ do j=day by -1 to 1; say pad @.j /* " the daily gifts.*/ end /*j*/ say /*add a blank line between the verses. */ end /*day*/ /*stick a fork in it, we're all done. */ ``` {{out|output|:}} (Shown at three-quarters size.)On the first day of Christmas My True Love gave to me: A partridge in a pear-tree. On the second day of Christmas My True Love gave to me: Two Turtle Doves, and A partridge in a pear-tree. On the third day of Christmas My True Love gave to me: Three French Hens, Two Turtle Doves, and A partridge in a pear-tree. On the fourth day of Christmas My True Love gave to me: Four Calling Birds, Three French Hens, Two Turtle Doves, and A partridge in a pear-tree. On the fifth day of Christmas My True Love gave to me: Five Golden Rings, Four Calling Birds, Three French Hens, Two Turtle Doves, and A partridge in a pear-tree. On the sixth day of Christmas My True Love gave to me: Six geese a-laying, Five Golden Rings, Four Calling Birds, Three French Hens, Two Turtle Doves, and A partridge in a pear-tree. On the seventh day of Christmas My True Love gave to me: Seven swans a-swimming, Six geese a-laying, Five Golden Rings, Four Calling Birds, Three French Hens, Two Turtle Doves, and A partridge in a pear-tree. On the eighth day of Christmas My True Love gave to me: Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five Golden Rings, Four Calling Birds, Three French Hens, Two Turtle Doves, and A partridge in a pear-tree. On the ninth day of Christmas My True Love gave to me: Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five Golden Rings, Four Calling Birds, Three French Hens, Two Turtle Doves, and A partridge in a pear-tree. On the tenth day of Christmas My True Love gave to me: Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five Golden Rings, Four Calling Birds, Three French Hens, Two Turtle Doves, and A partridge in a pear-tree. On the eleventh day of Christmas My True Love gave to me: Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five Golden Rings, Four Calling Birds, Three French Hens, Two Turtle Doves, and A partridge in a pear-tree. On the twelfth day of Christmas My True Love gave to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five Golden Rings, Four Calling Birds, Three French Hens, Two Turtle Doves, and A partridge in a pear-tree. ``` ## Ring ```ring # Project : The Twelve Days of Christmas gifts = "A partridge in a pear tree,Two turtle doves,Three french hens,Four calling birds,Five golden rings,Six geese a-laying,Seven swans a-swimming,Eight maids a-milking,Nine ladies dancing,Ten lords a-leaping,Eleven pipers piping,Twelve drummers drumming" days = "first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth" lstgifts = str2list(substr(gifts,",", nl)) lstdays = str2list(substr(days, " ", nl)) for i = 1 to 12 see "On the "+ lstdays[i]+ " day of Christmas" + nl see "My true love gave to me:" + nl for j = i to 1 step -1 if i > 1 and j = 1 see "and " + nl ok see "" + lstgifts[j] + nl next see nl next ``` Output: ```txt On the first day of Christmas My true love gave to me: A partridge in a pear tree On the second day of Christmas My true love gave to me: Two turtle doves and A partridge in a pear tree On the third day of Christmas My true love gave to me: Three french hens Two turtle doves and A partridge in a pear tree On the fourth day of Christmas My true love gave to me: Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the fifth day of Christmas My true love gave to me: Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the sixth day of Christmas My true love gave to me: Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the seventh day of Christmas My true love gave to me: Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the eighth day of Christmas My true love gave to me: Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the ninth day of Christmas My true love gave to me: Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the tenth day of Christmas My true love gave to me: Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the eleventh day of Christmas My true love gave to me: Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree On the twelfth day of Christmas My true love gave to me: Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree ``` ## Ruby ```ruby gifts = "A partridge in a pear tree Two turtle doves and Three french hens Four calling birds Five golden rings Six geese a-laying Seven swans a-swimming Eight maids a-milking Nine ladies dancing Ten lords a-leaping Eleven pipers piping Twelve drummers drumming".split("\n") days = %w(first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth) days.each_with_index do |day, i| puts "On the #{day} day of Christmas" puts "My true love gave to me:" puts gifts[0, i+1].reverse puts end ``` ## Run BASIC ```Runbasic gifts$ = " A partridge in a pear tree., Two turtle doves, Three french hens, Four calling birds, Five golden rings, Six geese a-laying, Seven swans a-swimming, Eight maids a-milking, Nine ladies dancing, Ten lords a-leaping, Eleven pipers piping, Twelve drummers drumming" days$ = "first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth" for i = 1 to 12 print "On the ";word$(days$,i," ");" day of Christmas" print "My true love gave to me:" for j = i to 1 step -1 if i > 1 and j = 1 then print "and "; print mid$(word$(gifts$,j,","),2) next j print next i ``` Output: ```txt On the first day of Christmas My true love gave to me: A partridge in a pear tree. . . On the twelfth day of Christmas My true love gave to me: Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree. ``` ## Rust [https://play.rust-lang.org/?gist=773d4af97e7c4b374574a3e1656b5029&version=stable&backtrace=0 Rust Playground] ```rust fn main() { let days = ["first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth"]; let gifts = ["A Patridge in a Pear Tree", "Two Turtle Doves and", "Three French Hens", "Four Calling Birds", "Five Golden Rings", "Six Geese a Laying", "Seven Swans a Swimming", "Eight Maids a Milking", "Nine Ladies Dancing", "Ten Lords a Leaping", "Eleven Pipers Piping", "Twelve Drummers Drumming"]; for i in 0..12 { println!("On the {} day of Christmas,", days[i]); println!("My true love gave to me:"); for j in (0..i + 1).rev() { println!("{}", gifts[j]); } println!() } } ``` ## Scala ```scala val gifts = Array( "A partridge in a pear tree.", "Two turtle doves and", "Three French hens,", "Four calling birds,", "Five gold rings,", "Six geese a-laying,", "Seven swans a-swimming,", "Eight maids a-milking,", "Nine ladies dancing,", "Ten lords a-leaping,", "Eleven pipers piping,", "Twelve drummers drumming," ) val days = Array( "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth" ) val giftsForDay = (day: Int) => "On the %s day of Christmas, my true love gave to me:\n".format(days(day)) + gifts.take(day+1).reverse.mkString("\n") + "\n" (0 until 12).map(giftsForDay andThen println) ``` {{Out}} ```txt On the first day of Christmas, my true love sent to me: A partridge in a pear tree. On the second day of Christmas, my true love sent to me: Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas, my true love sent to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves and A partridge in a pear tree. ``` ## Seed7 ```seed7 $ include "seed7_05.s7i"; const proc: main is func local const array string: gifts is [] ( "A partridge in a pear tree.", "Two turtle doves and", "Three french hens", "Four calling birds", "Five golden rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming"); const array string: days is [] ( "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "Twelfth"); var integer: day is 0; var integer: gift is 0; begin for day range 1 to length(days) do writeln; writeln("On the " <& days[day] <& " day of Christmas,"); writeln("My true love gave to me:"); for gift range day downto 1 do writeln(gifts[gift]); end for; end for; end func; ``` {{out}} ```txt On the first day of Christmas, My true love gave to me: A partridge in a pear tree. On the second day of Christmas, My true love gave to me: Two turtle doves and A partridge in a pear tree. On the third day of Christmas, My true love gave to me: Three french hens Two turtle doves and A partridge in a pear tree. ... On the Twelfth day of Christmas, My true love gave to me: Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves and A partridge in a pear tree. ``` ## Self Nicely factored: ```self (| parent* = traits oddball. gifts = ( 'And a partridge in a pear tree' & 'Two turtle doves' & 'Three french hens' & 'Four calling birds' & 'FIVE GO-OLD RINGS' & 'Six geese a-laying' & 'Seven swans a-swimming' & 'Eight maids a-milking' & 'Nine ladies dancing' & 'Ten lords a-leaping' & 'Eleven pipers piping' & 'Twelve drummers drumming' ) asSequence. days = ( 'first' & 'second' & 'third' & 'fourth' & 'fifth' & 'sixth' & 'seventh' & 'eighth' & 'ninth' & 'tenth' & 'eleventh' & 'twelfth' ) asSequence. intro: i = ( 'On the ', (days at: i), ' day of Christmas, my true love gave to me:'). gifts: i = ( i = 0 ifTrue: [sequence copyAddFirst: 'A partridge in a pear tree' ] False: [(gifts slice: 0@(i + 1)) reverse ]). verse: i = ( ((sequence copyAddFirst: intro: i) addAll: gifts: i) addLast: '' ). value = ( (days gather: [|:d. :i| verse: i ]) asSequence joinUsing: '\n' ) |) value printLine ``` ## Sidef {{trans|Perl 6}} ```ruby>var days =asString. ordinal := Ordinals at: day. giftList := (Gifts first: day) reverse. ^'On the ', ordinal, ' day of Christmas, my true love sent to me:', newLine, (giftList join: newLine), newLine. ] ] 1 to: 12 do: [:i | Transcript show: (TwelveDays giftsFor: i); cr. ]. ``` {{Out}} ```txt On the first day of Christmas, my true love sent to me: A partridge in a pear tree. On the second day of Christmas, my true love sent to me: Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas, my true love sent to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves and A partridge in a pear tree. ``` ## Smart BASIC ```smart BASIC ' by rbytes dim d$(12),x$(15)!s=15 for t=0 to 11!read d$(t)!next t for t=0 to 14!read x$(t)!next t for u=0 to 11!s-=1 print x$(0)&d$(u)&x$(1)&chr$(10)&x$(2) for t=s to 14!print x$(t)!next t print!next u!data "first","second","third","fourth","fifth","sixth","seventh","eight","ninth","tenth","eleventh","Twelfth","On the "," day of Christmas","My true love gave to me:","Twelve drummers drumming","Eleven pipers piping","Ten lords a-leaping","Nine ladies dancing","Eight maids a-milking","Seven swans a-swimming,","Six geese a-laying","Five golden rings","Four calling birds","Three french hens","Two turtle doves and","A partridge in a pear tree." OUTPUT = INTRO GIFT = DAY INNER GE(GIFT,1) :F(NEXT) OUTPUT = GIFTS GIFT = GIFT - 1 :(INNER) NEXT OUTPUT = '' DAY = DAY + 1 :(OUTER) END ``` {{Out}} ```txt On the first day of Christmas, my true love sent to me: A partridge in a pear tree. On the second day of Christmas, my true love sent to me: Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas, my true love sent to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves and A partridge in a pear tree. ``` ## SQL Demonstration of Oracle 12c "with" clause enhancement. ```SQL with function nl ( s in varchar2 ) return varchar2 is begin return chr(10) || s; end nl; function v ( d number, x number, g in varchar2 ) return varchar2 is begin return case when d >= x then nl (g) end; end v; select 'On the ' || to_char(to_date(level,'j'),'jspth' ) || ' day of Christmas,' || nl( 'my true love sent to me:') || v ( level, 12, 'Twelve drummers drumming,' ) || v ( level, 11, 'Eleven pipers piping,' ) || v ( level, 10, 'Ten lords a-leaping,' ) || v ( level, 9, 'Nine ladies dancing,' ) || v ( level, 8, 'Eight maids a-milking,' ) || v ( level, 7, 'Seven swans a-swimming,' ) || v ( level, 6, 'Six geese a-laying,' ) || v ( level, 5, 'Five golden rings!' ) || v ( level, 4, 'Four calling birds,' ) || v ( level, 3, 'Three French hens,' ) || v ( level, 2, 'Two turtle doves,' ) || v ( level, 1, case level when 1 then 'A' else 'And a' end || ' partridge in a pear tree.' ) || nl(null) "The Twelve Days of Christmas" from dual connect by level <= 12 / ``` output: ```txt The Twelve Days of Christmas -------------------------------------------------------------------------------- On the first day of Christmas, my true love sent to me: A partridge in a pear tree. ... On the twelfth day of Christmas, my true love sent to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five golden rings! Four calling birds, Three French hens, Two turtle doves, And a partridge in a pear tree. ``` ## Swift {{works with|Swift|2.1}} ```swift let gifts = [ "partridge in a pear tree", "Two turtle doves", "Three French hens", "Four calling birds", "Five gold rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming" ] let nth = [ "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth" ] func giftsForDay(day: Int) -> String { var result = "On the \(nth[day-1]) day of Christmas, my true love sent to me:\n" if day > 1 { for again in 1...day-1 { let n = day - again result += gifts[n] if n > 1 { result += "," } result += "\n" } result += "And a " } else { result += "A " } return result + gifts[0] + ".\n"; } for day in 1...12 { print(giftsForDay(day)) } ``` {{out}} ```txt On the first day of Christmas, my true love sent to me: A partridge in a pear tree. On the second day of Christmas, my true love sent to me: Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas, my true love sent to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves and A partridge in a pear tree. ``` ## Tailspin ```tailspin def ordinal: ['first', 'second', 'third', 'fourth', 'fifth', 'sixth', 'seventh', 'eighth', 'ninth', 'tenth', 'eleventh', 'twelfth']; def gift: [ 'a partridge in a pear tree', 'two turtle-doves', 'three French hens', 'four calling birds', 'five golden rings', 'six geese a-laying', 'seven swans a-swimming', 'eight maids a-milking', 'nine ladies dancing', 'ten lords a-leaping', 'eleven pipers piping', 'twelve drummers drumming' ]; templates punctuation <1> '.' ! <2> ' and' ! <5> ';' ! <> ',' ! end punctuation 1..12 -> ( 'On the $ordinal($); day of Christmas, my true love gave to me: ' ! $..1:-1 -> '$gift($);$->punctuation; ' ! ' ' ! ) -> !OUT::write ``` {{out}} ```txt On the first day of Christmas, my true love gave to me: a partridge in a pear tree. On the second day of Christmas, my true love gave to me: two turtle-doves and a partridge in a pear tree. ... On the twelfth day of Christmas, my true love gave to me: twelve drummers drumming, eleven pipers piping, ten lords a-leaping, nine ladies dancing, eight maids a-milking, seven swans a-swimming, six geese a-laying, five golden rings; four calling birds, three French hens, two turtle-doves and a partridge in a pear tree. ``` ## Tcl {{works with|Tcl|8.6}} ```tcl set days { first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth } set gifts [lreverse { "A partridge in a pear tree." "Two turtle doves, and" "Three french hens," "Four calling birds," "Five golden rings," "Six geese a-laying," "Seven swans a-swimming," "Eight maids a-milking," "Nine ladies dancing," "Ten lords a-leaping," "Eleven pipers piping," "Twelve drummers drumming," }] set n -1;puts [join [lmap day $days { format "On the $day day of Christmas,\nMy true love gave to me:\n%s" \ [join [lrange $gifts end-[incr n] end] \n] }] \n\n] ``` {{out}} On the first day of Christmas, My true love gave to me: A partridge in a pear tree. On the second day of Christmas, My true love gave to me: Two turtle doves, and A partridge in a pear tree. On the third day of Christmas, My true love gave to me: Three french hens, Two turtle doves, and A partridge in a pear tree. On the fourth day of Christmas, My true love gave to me: Four calling birds, Three french hens, Two turtle doves, and A partridge in a pear tree. On the fifth day of Christmas, My true love gave to me: Five golden rings, Four calling birds, Three french hens, Two turtle doves, and A partridge in a pear tree. On the sixth day of Christmas, My true love gave to me: Six geese a-laying, Five golden rings, Four calling birds, Three french hens, Two turtle doves, and A partridge in a pear tree. On the seventh day of Christmas, My true love gave to me: Seven swans a-swimming, Six geese a-laying, Five golden rings, Four calling birds, Three french hens, Two turtle doves, and A partridge in a pear tree. On the eighth day of Christmas, My true love gave to me: Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five golden rings, Four calling birds, Three french hens, Two turtle doves, and A partridge in a pear tree. On the ninth day of Christmas, My true love gave to me: Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five golden rings, Four calling birds, Three french hens, Two turtle doves, and A partridge in a pear tree. On the tenth day of Christmas, My true love gave to me: Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five golden rings, Four calling birds, Three french hens, Two turtle doves, and A partridge in a pear tree. On the eleventh day of Christmas, My true love gave to me: Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five golden rings, Four calling birds, Three french hens, Two turtle doves, and A partridge in a pear tree. On the twelfth day of Christmas, My true love gave to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five golden rings, Four calling birds, Three french hens, Two turtle doves, and A partridge in a pear tree. ``` ## UNIX Shell {{works with|Bourne Again SHell}} {{works with|Korn Shell|93}} ```bash #!/usr/bin/env bash ordinals=(first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth) gifts=( "A partridge in a pear tree." "Two turtle doves and" "Three French hens," "Four calling birds," "Five gold rings," "Six geese a-laying," "Seven swans a-swimming," "Eight maids a-milking," "Nine ladies dancing," "Ten lords a-leaping," "Eleven pipers piping," "Twelve drummers drumming," ) echo_gifts() { local i day=$1 echo "On the ${ordinals[day]} day of Christmas, my true love sent to me:" for (( i=day; i >=0; --i )); do echo "${gifts[i]}" done echo } for (( day=0; day < 12; ++day )); do echo_gifts $day done ``` The above will also work in zsh if the index range is changed from 0..11 to 1..12. {{works with|Bourne Shell}} (requires the '''seq''' command) ```sh #!/bin/sh ordinal() { n=$1 set first second third fourth fifth sixth \ seventh eighth ninth tenth eleventh twelfth shift $n echo $1 } gift() { n=$1 set "A partridge in a pear tree." "Two turtle doves and" \ "Three French hens," "Four calling birds," \ "Five gold rings," "Six geese a-laying," \ "Seven swans a-swimming," "Eight maids a-milking," \ "Nine ladies dancing," "Ten lords a-leaping," \ "Eleven pipers piping," "Twelve drummers drumming," shift $n echo "$1" } echo_gifts() { day=$1 echo "On the `ordinal $day` day of Christmas, my true love sent to me:" for i in `seq $day 0`; do gift $i done echo } for day in `seq 0 11`; do echo_gifts $day done ``` {{Out}} ```txt On the first day of Christmas, my true love sent to me: A partridge in a pear tree. On the second day of Christmas, my true love sent to me: Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas, my true love sent to me: Twelve drummers drumming, Eleven pipers piping, Ten lords a-leaping, Nine ladies dancing, Eight maids a-milking, Seven swans a-swimming, Six geese a-laying, Five gold rings, Four calling birds, Three French hens, Two turtle doves and A partridge in a pear tree. ``` ## VBA ```vb Sub Main() Dim i As Integer, c As Integer, j As Integer, strReturn() As String Dim s, n s = Split(SING_, "$") n = Split(NUMBERS_, " ") ReDim strReturn(UBound(s)) For i = LBound(s) To UBound(s) strReturn(i) = Replace(BASE_, "(X)", n(i)) For j = c To 0 Step -1 strReturn(i) = strReturn(i) & s(j) & vbCrLf Next c = c + 1 Next i strReturn(UBound(strReturn)) = Replace(strReturn(UBound(strReturn)), "and" & vbCrLf & "A", vbCrLf & "And a") Debug.Print Join(strReturn, vbCrLf) End Sub ``` {{out}} ```txt On the first day of Christmas, My true love gave to me: A partridge in a pear tree. On the second day of Christmas, My true love gave to me: Two turtle doves and A partridge in a pear tree. On the third day of Christmas, My true love gave to me: Three french hens Two turtle doves and A partridge in a pear tree. [...] On the twelfth day of Christmas, My true love gave to me: Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five golden rings Four calling birds Three french hens Two turtle doves And a partridge in a pear tree. ``` ## VBScript ```vb days = Array("first","second","third","fourth","fifth","sixth",_ "seventh","eight","ninth","tenth","eleventh","twelfth") gifts = Array("A partridge in a pear tree","Two turtle doves","Three french hens",_ "Four calling birds","Five golden rings","Six geese a-laying","Seven swans a-swimming",_ "Eight maids a-milking","Nine ladies dancing","Ten lords a-leaping","Eleven pipers piping",_ "Twelve drummers drumming") For i = 0 To 11 WScript.StdOut.Write "On the " & days(i) & " day of Christmas" WScript.StdOut.WriteLine WScript.StdOut.Write "My true love sent to me:" WScript.StdOut.WriteLine If i = 0 Then WScript.StdOut.Write gifts(i) Else For j = i To 0 Step - 1 If j = 0 Then WScript.StdOut.Write "and " & gifts(0) Else WScript.StdOut.Write gifts(j) WScript.StdOut.WriteLine End If Next End If WScript.StdOut.WriteBlankLines(2) Next ``` ## Visual Basic .NET {{trans|C#}} '''Compiler:''' Roslyn Visual Basic (language version >= 14, e.g. with Visual Studio 2015) ```vbnet Module Program Sub Main() Dim days = New String(11) {"first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth"} Dim gifts = New String(11) { "A partridge in a pear tree", "Two turtle doves", "Three french hens", "Four calling birds", "Five golden rings", "Six geese a-laying", "Seven swans a-swimming", "Eight maids a-milking", "Nine ladies dancing", "Ten lords a-leaping", "Eleven pipers piping", "Twelve drummers drumming" } For i = 0 To 11 Console.WriteLine($"On the {days(i)} day of Christmas, my true love gave to me") For j = i To 0 Step -1 Console.WriteLine(gifts(j)) Next Console.WriteLine() If i = 0 Then gifts(0) = "And a partridge in a pear tree" Next End Sub End Module ``` ## zkl {{trans|Python}} ```zkl gifts:= #<<< "A beer, in a tree.; Two turtlenecks; Three french toast; Four pounds of backbacon; Five golden touques; Six packs of two-four; Seven packs of smokes; Eight comic books; Nine back up singers; Ten feet of snow; Eleven hosers hosing; Twelve dozen donuts" #<<< .split(";").apply("strip"); days:=("first second third fourth fifth sixth seventh eighth ninth tenth " "eleventh twelfth").split(); foreach n,day in (days.enumerate()){ n+=1; g:=gifts[0,n].reverse(); println("On the %s day of Christmas\nMy true love gave to me:\n".fmt(day), g[0,-1].concat("\n"), (n>1) and " and\n" or "", g[-1], "\n"); } ``` {{out}}On the first day of Christmas My true love gave to me: A beer, in a tree. On the second day of Christmas My true love gave to me: Two turtlenecks and A beer, in a tree. On the third day of Christmas My true love gave to me: Three french toast Two turtlenecks and A beer, in a tree. On the fourth day of Christmas My true love gave to me: Four pounds of backbacon Three french toast Two turtlenecks and A beer, in a tree. On the fifth day of Christmas My true love gave to me: Five golden touques Four pounds of backbacon Three french toast Two turtlenecks and A beer, in a tree. On the sixth day of Christmas My true love gave to me: Six packs of two-four Five golden touques Four pounds of backbacon Three french toast Two turtlenecks and A beer, in a tree. On the seventh day of Christmas My true love gave to me: Seven packs of smokes Six packs of two-four Five golden touques Four pounds of backbacon Three french toast Two turtlenecks and A beer, in a tree. On the eighth day of Christmas My true love gave to me: Eight comic books Seven packs of smokes Six packs of two-four Five golden touques Four pounds of backbacon Three french toast Two turtlenecks and A beer, in a tree. On the ninth day of Christmas My true love gave to me: Nine back up singers Eight comic books Seven packs of smokes Six packs of two-four Five golden touques Four pounds of backbacon Three french toast Two turtlenecks and A beer, in a tree. On the tenth day of Christmas My true love gave to me: Ten feet of snow Nine back up singers Eight comic books Seven packs of smokes Six packs of two-four Five golden touques Four pounds of backbacon Three french toast Two turtlenecks and A beer, in a tree. On the eleventh day of Christmas My true love gave to me: Eleven hosers hosing Ten feet of snow Nine back up singers Eight comic books Seven packs of smokes Six packs of two-four Five golden touques Four pounds of backbacon Three french toast Two turtlenecks and A beer, in a tree. On the twelfth day of Christmas My true love gave to me: Twelve dozen donuts Eleven hosers hosing Ten feet of snow Nine back up singers Eight comic books Seven packs of smokes Six packs of two-four Five golden touques Four pounds of backbacon Three french toast Two turtlenecks and A beer, in a tree. ```