NAME
    Lingua::EN::Number::IsOrdinal - detect if English number is ordinal or
    cardinal

SYNOPSIS
        use Lingua::EN::Number::IsOrdinal 'is_ordinal';

        ok is_ordinal('first');

        ok !is_ordinal('one');

        ok is_ordinal('2nd');

        ok !is_ordinal('2');

DESCRIPTION
    This module will tell you if a number, either in words or as digits, is
    a cardinal or ordinal number
    <http://www.ego4u.com/en/cram-up/vocabulary/numbers/ordinal>.

    This is useful if you e.g. want to distinguish these types of numbers
    found with Lingua::EN::FindNumber and take different actions.

FUNCTIONS
  is_ordinal
    Takes a number as English words or digits (with or without ordinal
    suffix) and returns 1 for ordinal numbers and "undef" for cardinal
    numbers.

    Checks that the whole parameter is a number using Lingua::EN::FindNumber
    or a regex in the case of digits, and if it isn't will throw a "not a
    number" exception.

    This function can be optionally imported.

METHODS
  _is_ordinal
    Method version of "is_ordinal", this is where the function is actually
    implemented. Can be overloaded in a subclass.

  _is_number
    Returns 1 if the passed in string is a word-number as detected by
    Lingua::EN::FindNumber or is a cardinal or ordinal number made of digits
    and (for ordinal numbers) a suffix. Otherwise returns "undef". Can be
    overloaded in a subclass.

SEE ALSO
    *   Lingua::EN::FindNumber

    *   Lingua::EN::Words2Nums

    *   Lingua::EN::Inflect::Phrase

AUTHOR
    Rafael Kitover <rkitover@cpan.org>