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Contents
# TITLE
#
# English Numerals
#
# SUMMARY:
#
# Convert integers into english word form.
#
# AUTHORS:
#
# Glenn P. Parker
module English #:nodoc:
module Numerals
Ones = %w[ zero one two three four five six seven eight nine ]
Teen = %w[ ten eleven twelve thirteen fourteen fifteen
sixteen seventeen eighteen nineteen ]
Tens = %w[ zero ten twenty thirty forty fifty
sixty seventy eighty ninety ]
Mega = %w[ none thousand million billion ]
# Convert an integer to the english spelling of that number.
def name(integer)
places = integer.to_i.to_s.split(//).collect{|s| s.to_i}.reverse
name = []
((places.length + 2) / 3).times do |p|
strings = Numerals.trio(places[p * 3, 3])
name.push(Mega[p]) if strings.length > 0 and p > 0
name += strings
end
name.push(Ones[0]) unless name.length > 0
name.reverse.join(" ")
end
private
def self.trio(places)
strings = []
if places[1] == 1
strings.push(Teen[places[0]])
elsif places[1] and places[1] > 0
strings.push(places[0] == 0 ? Tens[places[1]] :
"#{Tens[places[1]]}-#{Ones[places[0]]}")
elsif places[0] > 0
strings.push(Ones[places[0]])
end
if places[2] and places[2] > 0
strings.push("hundred", Ones[places[2]])
end
strings
end
end
end # module English
#
class Integer #:nodoc:
#
# 10.english #=> 'ten'
def english
English::Numerals.name(self)
end
end
Version data entries
9 entries across 9 versions & 2 rubygems