Spelling of ordinal numbers

Ordinal numbers (as used in this Rosetta Code task), are numbers that discribe the position of something in a list.

It is this context that ordinal numbers will be used, using an Enlish-spelled name of an ordinal number.

The ordinal numbers are (at least, one form of them):

  1st  2nd  3rd  4th  5th  6th  7th  ···  99th  100th  ···  1000000000th  ···  etc

sometimes expressed as:

  1^st  2^nd  3^rd  4^th  5^th  6^th  7^th  ···  99^th  100^th  ···  1000000000^th  ···

For this task, the following (English-spelled form) will be used:

  first second third fourth fifth sixth seventh ninety-nineth one hundredth one billionth

Furthermore, the American version of numbers will be used here (as opposed to the British).

2,000,000,000 is two billion, not two milliard.

Task

Write a driver and a function (subroutine/routine ···) that returns the English-spelled ordinal version of a specified number (a non-negative integer).

Optionally, try to support as many forms of an integer that can be expressed: 123 00123.0 1.23e2 all are forms of the same integer.

0 (zero) should have a ordinal representation as: zeroth

Show all output here.

Test cases

Use (at least) the test cases of:

0  1  2  3  4  5  11  65  100  101  272  23456  8007006005004003

Related task

Number names.

REXX

<lang REXX>/*REXX programs spells out ordinal numbers (in English, using the American system). */ numeric digits 3000 /*just in case the user uses gihugic #s*/ parse arg n /*obtain optional arguments from the CL*/

if n= | n="," then n= 0 1 2 3 4 5 11 65 100 101 272 23456 8007006005004003

pgmOpts= '( ordinal quiet )' /*define options needed for $SPELL#.REX*/

    do j=1  for words(n)                        /*process each of the specified numbers*/
    x=word(n, j)                                /*obtain a number from the input list. */
    os=$spell#(x  pgmOpts)                      /*invoke REXX routine to spell ordinal#*/
    say right(x, max(20, length(x) ) )      ' spelled ordinal number ───► '      os
    end   /*j*/</lang>

output when using the default inputs:

                   1  spelled ordinal number ───►  first
                   2  spelled ordinal number ───►  second
                   3  spelled ordinal number ───►  third
                   4  spelled ordinal number ───►  fourth
                   5  spelled ordinal number ───►  fifth
                  11  spelled ordinal number ───►  eleventh
                  65  spelled ordinal number ───►  sixty-fifth
                 100  spelled ordinal number ───►  one hundredth
                 101  spelled ordinal number ───►  one hundred first
                 272  spelled ordinal number ───►  two hundred seventy-second
               23456  spelled ordinal number ───►  twenty-three thousand four hundred fifty-sixth
    8007006005004003  spelled ordinal number ───►  eight quadrillion seven trillion six billion five million four thousand third

The $SPELL#.REX routine can be found here ───► $SPELL#.REX.