Sha256: 519612416d63813b79a2a96ad6dd4bd72a62cedf50684e189c58a501d20fe96d
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Size: 1.18 KB
Versions: 12
Compression:
Stored size: 1.18 KB
Contents
class Integer
WORDS = {
0 => 'zero', 1 => 'one', 2 => 'two', 3 => 'three', 4 => 'four',
5 => 'five', 6 => 'six', 7 => 'seven', 8 => 'eight', 9 => 'nine',
10 => 'ten', 11 => 'eleven', 12 => 'twelve', 13 => 'thirteen',
14 => 'fourteen', 15 => 'fifteen', 16 => 'sixteen', 17 => 'seventeen',
18 => 'eighteen', 19 => 'nineteen', 20 => 'twenty', 30 => 'thirty',
40 => 'forty', 50 => 'fifty', 60 => 'sixty', 70 => 'seventy',
80 => 'eighty', 90 => 'ninety'
}
def words
return WORDS[0] if zero?
str = (place = places.to_a).map do |name, v|
next if v.zero?
case name
when :units then WORDS[v]
when :tens
units = place.pop.last
v == 1 ? WORDS[10 + units]
: WORDS[10 * v] + (units.zero? ? '' : ' ' + units.words)
else
v.words + ' ' + name.to_s[0..-2]
end
end.compact.join(', ')
str.include?(',') ? str.sub(/,([^,]+)$/,' and\1') : str
end
def places
n = self
{trillions: 10e11, billions: 10e8, millions: 10e5, thousands: 10e2,
hundreds: 10e1, tens: 10, units: 1}.map do |k,v|
v, n = n.divmod(v)
[k, v]
end.tap{|a| return Hash[a] }
end
end
Version data entries
12 entries across 12 versions & 1 rubygems