ChineseNumbers.frink

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// Library for converting numbers to various Chinese representations.
// See:
// http://www.mandarintools.com/numbers.html
// http://en.wikipedia.org/wiki/Chinese_numerals
//
class ChineseNumbers
{
   // Dictionaries that store the styles.
   class var casual = ChineseNumbers.initializeCasual[]
   class var formal = ChineseNumbers.initializeFormal[]

   // Initialize the casual dictionary
   class initializeCasual[] :=
   {
      casual = new dict
      
      casual@"0" = "\u96F6"
      casual@"1" = "\u4e00"
      casual@"2" = "\u4e8c"
      casual@"3" = "\u4e09"
      casual@"4" = "\u56db"
      casual@"5" = "\u4e94"
      casual@"6" = "\u516d"
      casual@"7" = "\u4e03"
      casual@"8" = "\u516b"
      casual@"9" = "\u4e5d"
      casual@"10"= "\u5341"
      casual@"100" = "\u767e"
      casual@"1000" = "\u5343"
      casual@"10000" = "\u4e07"

      return casual
   }

   // Initialize the formal dictionary
   class initializeFormal[] :=
   {
      formal = new dict
      
      formal@"0" = "\u96F6"
      formal@"1" = "\u58F9"
      formal@"2" = "\u8cb3"
      formal@"3" = "\u53c4"
      formal@"4" = "\u8086"
      formal@"5" = "\u4f0d"
      formal@"6" = "\u9678"
      formal@"7" = "\u67D2"
      formal@"8" = "\u634C"
      formal@"9" = "\u7396"
      formal@"10"= "\u62fe"
      formal@"100" = "\u4f70"
      formal@"1000" = "\u4edf"
      formal@"10000" = "\u842c"
      return formal
   }

   // Get string corresponding to casual Chinese writing.
   class formatCasual[num is dimensionless] :=
   {
      return format[num, casual]
   }

   // Get string corresponding to formal Chinese writing.
   class formatFormal[num is dimensionless] :=
   {
      return format[num, formal]
   }
   
   // Function to format according to style.
   class format[num, dict, hasLeading=false] :=
   {
      ret = formatTenThousands[num, dict, false]

      re = subst["(.)" + dict@"0" + "+$", "$1"] // Remove trailing zeroes
      ret =~ re

      re = subst[dict@"0" + "{2,}", dict@"0"] // Remove doubled zeroes
      ret =~ re
   }

   // Format ten-thousands place
   class formatTenThousands[num, dict, hasLeading] :=
   {
      digits = num div 10000
      remainder = num mod 10000

      if digits == 0
         if !hasLeading
            return formatThousands[remainder, dict, false]
         else
            return dict@"0" + formatThousands[remainder, dict, true]

      return format[digits,dict,true] + dict@"10000" + formatThousands[remainder, dict, true]
   }
   
   // Format thousands place
   class formatThousands[num, dict, hasLeading] :=
   {
      digit = num div 1000
      remainder = num mod 1000

      if digit == 0
         if !hasLeading
            return formatHundreds[remainder, dict, false]
         else
            return dict@"0" + formatHundreds[remainder, dict, true]

      return dict@"$digit" + dict@"1000" + formatHundreds[remainder, dict, true]
   }
   
   // Format hundreds place
   class formatHundreds[num, dict, hasLeading] :=
   {
      digit = num div 100
      remainder = num mod 100

      if digit == 0
         if !hasLeading
            return formatTens[remainder, dict, false]
         else
            return dict@"0" + formatTens[remainder, dict, true]

      return dict@"$digit" + dict@"100" + formatTens[remainder, dict, true]
   }   

   // Format tens place
   class formatTens[num, dict, hasLeading] :=
   {
      digit = num div 10
      remainder = num mod 10

      if digit == 0
         if !hasLeading
            return formatOnes[remainder, dict, false]
         else
            return dict@"0" + formatOnes[remainder, dict, true]
         
      
      if digit == 1             // Special case for 11-99
         if !hasLeading
            return dict@"10" + formatOnes[remainder, dict, true]

      return dict@"$digit" + dict@"10" + formatOnes[remainder, dict, true]
   }   

   // Format ones place
   class formatOnes[num, dict, hasLeading] :=
   {
      if num == 0
         if !hasLeading         // No leading, return zero character
            return dict@"0"
         else                   // Has leading, skip if zero
            return ""

      return dict@"$num"        // Normal case
   }
}


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This is a program written in the programming language Frink.
For more information, view the Frink Documentation or see More Sample Frink Programs.

Alan Eliasen was born 20145 days, 13 hours, 31 minutes ago.