Module: YaKansuji

Defined in:
lib/ya_kansuji.rb,
lib/ya_kansuji/version.rb,
lib/ya_kansuji/formatter.rb,
lib/ya_kansuji/core_refine.rb,
lib/ya_kansuji/formatter/gov.rb,
lib/ya_kansuji/formatter/lawyer.rb,
lib/ya_kansuji/formatter/simple.rb,
lib/ya_kansuji/formatter/judic_h.rb,
lib/ya_kansuji/formatter/judic_v.rb

Overview

Simple kansuji formatter

Defined Under Namespace

Modules: CoreRefine, Formatter

Constant Summary collapse

UNIT_EXP3 = 
%w(十 百 千).freeze
UNIT_EXP4 = 
%w(万 億 兆 京 垓 𥝱 穣 溝 澗 正 載 極 恒河沙 阿僧祇 那由他 不可思議 無量大数).freeze
MAX_VALUE = 
(10_000**(UNIT_EXP4.size + 1)) - 1
UNIT_FRAC = 
%w(分 厘 毛 糸 忽 微 繊 沙 塵 埃 渺 漠
模糊 逡巡 須臾 瞬息 弾指 刹那 六徳 虚空 清浄).freeze
FRAC_BASE = 
10**UNIT_FRAC.size
NUM_ALT_CHARS = 
'〇一二三四五六七八九０１２３４５６７８９零壱壹弌弐貳貮参參弎肆伍陸漆質柒捌玖拾什陌佰阡仟萬秭'
NUM_NORMALIZED_CHARS = 
'01234567890123456789011122233345677789十十百百千千万𥝱'
REGEXP_PART =

rubocop:disable Lint/DuplicateRegexpCharacterClassElement

%r{
  [
    #{(NUM_ALT_CHARS + NUM_NORMALIZED_CHARS).chars.uniq.join}
    #{(UNIT_EXP3 + UNIT_EXP4).find_all { |u| u.length == 1 }.join}
    卄廿卅丗卌皕
  ] |
  #{UNIT_EXP4.find_all { |u| u.length > 1 }.join('|')}
}x.freeze
REGEXP =

rubocop:enable Lint/DuplicateRegexpCharacterClassElement

/(?:マイナス)?(?:#{REGEXP_PART})+/.freeze
VERSION = 
'1.3.0'
@@formatters = 
{}

Class Method Summary collapse

Class Method Details

.formatter(sym) ⇒ Object 



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# File 'lib/ya_kansuji.rb', line 135

def formatter(sym)
  @@formatters[sym]
end

.formatters ⇒ Object 



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# File 'lib/ya_kansuji.rb', line 139

def formatters
  @@formatters
end

.normalize_value(num) ⇒ Object 



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# File 'lib/ya_kansuji.rb', line 87

def normalize_value(num)
  return num if num.is_a?(Integer)

  unless num.is_a?(Numeric)
    return num._to_i_ya_kansuji_orig if num.respond_to?(:_to_i_ya_kansuji_orig)

    return num.to_i
  end

  return num.to_i unless num.respond_to?(:truncate)

  num = rational_from_float(num) if num.is_a?(Float)
  num = num.to_r if num.respond_to?(:to_r)
  int = num.truncate
  scaled = ((num - int) * FRAC_BASE).round
  if scaled.abs >= FRAC_BASE
    if scaled.negative?
      int -= 1
    else
      int += 1
    end
    scaled = 0
  end
  scaled.zero? ? int : Rational((int * FRAC_BASE) + scaled, FRAC_BASE)
end

.rational_from_float(num) ⇒ Object

Raises:

  • (FloatDomainError) 


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# File 'lib/ya_kansuji.rb', line 113

def rational_from_float(num)
  raise FloatDomainError, num.to_s if num.nan? || num.infinite?

  m = /\A(-?)(\d+)(?:\.(\d+))?(?:e([+-]?\d+))?\z/.match(num.to_s)
  raise FloatDomainError, num.to_s unless m

  ret = Rational(Integer(m[2] + (m[3] || ''), 10))
  ret = -ret unless m[1].empty?
  exp = (m[4] ? Integer(m[4], 10) : 0) - (m[3] ? m[3].size : 0)
  exp >= 0 ? ret * (10**exp) : ret / (10**-exp)
end

.register_formatter(sym, proc = nil, &block) ⇒ Object 



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# File 'lib/ya_kansuji.rb', line 125

def register_formatter(sym, proc = nil, &block)
  if block_given?
    @@formatters[sym] = block
  elsif proc.respond_to? :call
    @@formatters[sym] = proc
  else
    raise ArgumentError, 'Registering invalid formatter.'
  end
end

.to_i(str) ⇒ Object 



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# File 'lib/ya_kansuji.rb', line 30

def to_i(str)
  str = str.to_s.tr(NUM_ALT_CHARS, NUM_NORMALIZED_CHARS)
  str.gsub!(/[,，、[:space:]]/, '')
  matched = REGEXP.match(str) or return 0
  ret3 = 0
  ret4 = 0
  curnum = nil
  if str.respond_to? :_to_i_ya_kansuji_orig
    to_i_meth = :_to_i_ya_kansuji_orig
  else
    to_i_meth = :to_i
  end
  matched[0].scan(REGEXP_PART).each do |c|
    case c
    when '1', '2', '3', '4', '5', '6', '7', '8', '9'
      if curnum
        curnum *= 10
      else
        curnum = 0
      end
      curnum += c.public_send(to_i_meth)
    when '0'
      curnum and curnum *= 10
    when '卄', '廿'
      ret3 += 20
      curnum = nil
    when '卅', '丗'
      ret3 += 30
      curnum = nil
    when '卌'
      ret3 += 40
      curnum = nil
    when '皕'
      ret3 += 200
      curnum = nil
    when *UNIT_EXP4
      if curnum
        ret3 += curnum
        curnum = nil
      end
      ret3 = 1 if ret3.zero?
      ret4 += ret3 * (10**((UNIT_EXP4.index(c) + 1) * 4))
      ret3 = 0
    when *UNIT_EXP3
      curnum ||= 1
      ret3 += curnum * (10**(UNIT_EXP3.index(c) + 1))
      curnum = nil
    end
  end
  if curnum
    ret3 += curnum
    curnum = nil
  end
  ret = ret4 + ret3
  matched[0].start_with?('マイナス') ? -ret : ret
end

.to_kan(num, formatter = :simple, options = {}) ⇒ Object 



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# File 'lib/ya_kansuji.rb', line 143

def to_kan(num, formatter = :simple, options = {})
  num = normalize_value(num)
  if num.truncate.abs > MAX_VALUE
    raise RangeError, "Value must be between #{-MAX_VALUE} and #{MAX_VALUE}"
  end

  return "マイナス#{to_kan(-num, formatter, options)}" if num.negative?

  if formatter.respond_to? :call
    formatter.call num, options
  elsif @@formatters[formatter]
    @@formatters[formatter].call num, options
  else
    raise ArgumentError, "Unable to find formatter #{formatter}"
  end
end