module NumberToZhCn

Formats a number into a chinese amount in words(e.g., 壹万元整).

Examples¶ ↑

number_to_capital_zh(10001.00) # => ‘壹万元整’, number_to_capital_zh(100000.10) # => ‘壹拾万元壹角整’, number_to_capital_zh(0.1) # => ‘壹角整’, number_to_capital_zh(1.11) # => ‘壹元壹角壹分’, number_to_capital_zh(1.01) # => ‘壹元零壹分’, number_to_capital_zh(0.01) # => ‘壹分’, number_to_capital_zh(1) # => ‘壹元整’, number_to_capital_zh(10) # => ‘壹拾元整’, number_to_capital_zh(100010.10) # => ‘壹拾万零壹拾元壹角整’, number_to_capital_zh(100000000) # => ‘壹亿元整’, number_to_capital_zh(1029.59) # => ‘壹仟零贰拾玖元伍角玖分’, number_to_capital_zh(1029.58) # => ‘壹仟零贰拾玖元伍角捌分’, number_to_capital_zh(1029.6) # => ‘壹仟零贰拾玖元陆角整’, number_to_capital_zh(1029) # => ‘壹仟零贰拾玖元整’,

number_to_capital_zh(0) # => ‘零’, number_to_capital_zh(0.0) # => ‘零’, number_to_capital_zh(0.00) # => ‘零’, number_to_capital_zh(-0) # => ‘零’, number_to_capital_zh(-0.0) # => ‘零’, number_to_capital_zh(-0.00) # => ‘零’,

number_to_capital_zh(-360.0) # => ‘负叁佰陆拾元整’, number_to_capital_zh(-10000.00) # => ‘负壹万元整’, number_to_capital_zh(-100000.10) # => ‘负壹拾万元壹角整’, number_to_capital_zh(-0.1) # => ‘负壹角整’, number_to_capital_zh(-1.11) # => ‘负壹元壹角壹分’, number_to_capital_zh(-1.01) # => ‘负壹元零壹分’, number_to_capital_zh(-0.01) # => ‘负壹分’, number_to_capital_zh(-1) # => ‘负壹元整’, number_to_capital_zh(-10) # => ‘负壹拾元整’, number_to_capital_zh(-100010.10) # => ‘负壹拾万零壹拾元壹角整’, number_to_capital_zh(-100000000) # => ‘负壹亿元整’, number_to_capital_zh(-1029.015) # => ‘负壹仟零贰拾玖元零贰分’, number_to_capital_zh(-1029.59) # => ‘负壹仟零贰拾玖元伍角玖分’, number_to_capital_zh(-1029.58) # => ‘负壹仟零贰拾玖元伍角捌分’, number_to_capital_zh(-1029.6) # => ‘负壹仟零贰拾玖元陆角整’, number_to_capital_zh(-1029) # => ‘负壹仟零贰拾玖元整’, number_to_capital_zh(-1029.015) # => ‘负壹仟零贰拾玖元零贰分’,

# File lib/number_to_zh_cn.rb, line 46
def number_to_capital_zh(n)
  cNum = ["零","壹","贰","叁","肆","伍","陆","柒","捌","玖","-","-","万","仟","佰","拾","亿","仟","佰","拾","万","仟","佰","拾","元","角","分"]
  cCha = [['零元','零拾','零佰','零仟','零万','零亿','亿万','零零零','零零','零万','零亿','亿万','零元'], [ '元','零','零','零','万','亿','亿','零','零','万','亿','亿','元']]

  i = 0
  sNum = ""
  sTemp = ""
  result = ""
  tmp = ("%.0f" % (n.abs.to_f * 100)).to_i
  return '零' if tmp == 0
  raise '整数部分加二位小数长度不能大于15' if tmp.to_s.size > 15
  sNum = tmp.to_s.rjust(15, ' ')

  for i in 0..14
    stemp = sNum.slice(i, 1)
    if stemp == ' '
      next
    else
      result += cNum[stemp.to_i] + cNum[i + 12];
    end
  end

  for m in 0..12
    result.gsub!(cCha[0][m], cCha[1][m])
  end

  if result.index('零分').nil? # 没有分时, 零角改成零
    result.gsub!('零角','零')
  else
    if result.index('零角').nil? # 有没有分有角时, 后面加"整"
      result += '整'
    else
      result.gsub!('零角', '整')
    end
  end

  result.gsub!('零分', '')
  "#{n < 0 ? "负" : ""}#{result}"
end