Module: NumbersInWords

Extended by:
Forwardable
Defined in:
lib/numbers_in_words.rb,
lib/numbers_in_words/writer.rb,
lib/numbers_in_words/to_word.rb,
lib/numbers_in_words/version.rb,
lib/numbers_in_words/fraction.rb,
lib/numbers_in_words/duck_punch.rb,
lib/numbers_in_words/number_group.rb,
lib/numbers_in_words/powers_of_ten.rb,
lib/numbers_in_words/parsing/special.rb,
lib/numbers_in_words/parsing/to_number.rb,
lib/numbers_in_words/exceptional_numbers.rb,
lib/numbers_in_words/parsing/pair_parsing.rb,
lib/numbers_in_words/parsing/parse_status.rb,
lib/numbers_in_words/parsing/number_parser.rb,
lib/numbers_in_words/parsing/parse_fractions.rb,
lib/numbers_in_words/parsing/fraction_parsing.rb,
lib/numbers_in_words/parsing/parse_individual_number.rb

Defined Under Namespace

Modules: FractionParsing, NumericExtension, StringExtension Classes: ExceptionalNumbers, Fraction, NumberGroup, NumberParser, PairParsing, ParseFractions, ParseIndividualNumber, ParseStatus, Special, ToNumber, ToWord, Writer

Constant Summary collapse

LENGTH_OF_GOOGOL =

length of the string i.e. one with 100 zeros

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Error = 
::Class.new(::StandardError)
AmbiguousParsingError = 
::Class.new(Error)
DivideByZeroError = 
::Class.new(Error)
InvalidNumber = 
::Class.new(Error)
EPSILON =

Arbitrarily small number for rationalizing fractions

0.0000000001
VERSION = 
'0.5.1'
GOOGOL = 
10**100
POWERS_OF_TEN = 
{
  0 => 'one',
  1 => 'ten',
  2 => 'hundred',
  1 * 3 => 'thousand',
  2 * 3 => 'million',
  3 * 3 => 'billion',
  4 * 3 => 'trillion',
  5 * 3 => 'quadrillion',
  6 * 3 => 'quintillion',
  7 * 3 => 'sextillion',
  8 * 3 => 'septillion',
  9 * 3 => 'octillion',
  10 * 3 => 'nonillion',
  11 * 3 => 'decillion',
  12 * 3 => 'undecillion',
  13 * 3 => 'duodecillion',
  14 * 3 => 'tredecillion',
  15 * 3 => 'quattuordecillion',
  16 * 3 => 'quindecillion',
  17 * 3 => 'sexdecillion',
  18 * 3 => 'septendecillion',
  19 * 3 => 'octodecillion',
  20 * 3 => 'novemdecillion',
  21 * 3 => 'vigintillion',
  22 * 3 => 'unvigintillion',
  23 * 3 => 'duovigintillion',
  24 * 3 => 'trevigintillion',
  25 * 3 => 'quattuorvigintillion',
  26 * 3 => 'quinvigintillion',
  27 * 3 => 'sexvigintillion',
  28 * 3 => 'septenvigintillion',
  29 * 3 => 'octovigintillion',
  30 * 3 => 'novemvigintillion',
  31 * 3 => 'trigintillion',
  32 * 3 => 'untrigintillion',
  33 * 3 => 'duotrigintillion',
  100 => 'googol',
  101 * 3 => 'centillion',
  GOOGOL => 'googolplex'
}.freeze
POWERS_RX = 
Regexp.union(POWERS_OF_TEN.values[1..]).freeze

Class Method Summary collapse

Class Method Details

.exceptional_number(text) ⇒ Object 



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# File 'lib/numbers_in_words.rb', line 36

def exceptional_number(text)
  exceptional_numbers_to_i[text]
end

.exceptional_numbers ⇒ Object 



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# File 'lib/numbers_in_words.rb', line 28

def exceptional_numbers
  @exceptional_numbers ||= ExceptionalNumbers.new
end

.in_numbers(words, only_compress: false) ⇒ Object 



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# File 'lib/numbers_in_words.rb', line 24

def in_numbers(words, only_compress: false)
  ToNumber.new(words, only_compress).call
end

.in_words(num, fraction: false) ⇒ Object 



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# File 'lib/numbers_in_words.rb', line 20

def in_words(num, fraction: false)
  ToWord.new(num).in_words(fraction: fraction)
end

.lookup(number) ⇒ Object 



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# File 'lib/numbers_in_words.rb', line 32

def lookup(number)
  exceptional_numbers.lookup(number)
end

.power_of_ten(text) ⇒ Object 



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# File 'lib/numbers_in_words.rb', line 40

def power_of_ten(text)
  powers_of_ten_to_i[text]
end