= The Twelve Days of Christmas =

''Part of'' SwitchCaseCategory

== Description ==

Prints the lyrics to the Twelve Days of Christmas (all twelve verses).

TwelveDaysOfChristmasExampleTwo demonstrates different code to get the same result.

== Example ==

{{{
#!d
const char[] I1 = "On the ";
const char[] I2 = " day of Christmas, my true love gave to me:";

const char[] D1 = "A Partridge in a Pear Tree.";
const char[] D2 = "Two Turtle Doves, and";
const char[] D3 = "Three French Hens,";

const char[] D4 = "Four Calling Birds,";
const char[] D5 = "Five Golden Rings,";
const char[] D6 = "Six Geese a Laying,";

const char[] D7 = "Seven Swans a Swimming,";
const char[] D8 = "Eight Maids a Milking,";
const char[] D9 = "Nine Ladies Dancing,";

const char[] D10 = "Ten Lords a Leaping,";
const char[] D11 = "Eleven Pipers Piping,";
const char[] D12 = "Twelve Drummers Drumming,";


void println(char[] s)
{
    printf(cast(char*) (s ~ "\n\0")); /* A simple \n\0 (without quotes) is valid in D, but d2html won't handle it */
}


int main (char[][] args) 
{
    char[] s;

    for (int e=1; e<=12; e++)
    {
        for (int d=e; d>0; d--)
        {   
            s = "";

            if (d==e)
            {
                s = I1;
                
                switch(d)
                {
                    case 1:  s ~= "first"; break;
                    case 2:  s ~= "second"; break;
                    case 3:  s ~= "third"; break;
                    case 4:  s ~= "fourth"; break;
                    case 5:  s ~= "fifth"; break;
                    case 6:  s ~= "sixth"; break;
                    case 7:  s ~= "seventh"; break;
                    case 8:  s ~= "eighth"; break;
                    case 9:  s ~= "ninth"; break;
                    case 10: s ~= "tenth"; break;    
                    case 11: s ~= "eleventh"; break;
                    default: s ~= "twelveth"; break;
                }
                s ~= I2;
                println(s);
            }

            switch (d)
            {
                case 12: println(D12); break;
                case 11: println(D11); break;
                case 10: println(D10); break;
                case 9:  println(D9); break;
                case 8:  println(D8); break;
                case 7:  println(D7); break;
                case 6:  println(D6); break;
                case 5:  println(D5); break;
                case 4:  println(D4); break;
                case 3:  println(D3); break;
                case 2:  println(D2); break;
                default: println(D1); println(""); break;
            }
        }
    }
    return 0;
}
}}}

== Source ==

|| Link || http://jcc_7.tripod.com/d/tutor/twelve_days.html ||
|| Author || jcc7 ||