forked from GitHub/gf-core
96 lines
2.6 KiB
Plaintext
96 lines
2.6 KiB
Plaintext
concrete NumeralEng of Numeral = CatEng ** open ResEng in {
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lincat
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Digit = {s : DForm => CardOrd => Str} ;
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Sub10 = {s : DForm => CardOrd => Str ; n : Number} ;
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Sub100 = {s : CardOrd => Str ; n : Number} ;
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Sub1000 = {s : CardOrd => Str ; n : Number} ;
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Sub1000000 = {s : CardOrd => Str ; n : Number} ;
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lin num x = x ;
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lin n2 = let two = mkNum "two" "twelve" "twenty" "second" in
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{s = \\f,c => case <f,c> of {
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<teen,NOrd> => "twelfth" ;
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_ => two.s ! f ! c
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}
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} ;
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lin n3 = mkNum "three" "thirteen" "thirty" "third" ;
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lin n4 = mkNum "four" "fourteen" "forty" "fourth" ;
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lin n5 = mkNum "five" "fifteen" "fifty" "fifth" ;
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lin n6 = regNum "six" ;
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lin n7 = regNum "seven" ;
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lin n8 = mkNum "eight" "eighteen" "eighty" "eighth" ;
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lin n9 = mkNum "nine" "nineteen" "ninety" "ninth" ;
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lin pot01 = mkNum "one" "eleven" "ten" "first" ** {n = Sg} ;
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lin pot0 d = d ** {n = Pl} ;
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lin pot110 = regCardOrd "ten" ** {n = Pl} ;
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lin pot111 = regCardOrd "eleven" ** {n = Pl} ;
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lin pot1to19 d = {s = d.s ! teen} ** {n = Pl} ;
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lin pot0as1 n = {s = n.s ! unit} ** {n = n.n} ;
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lin pot1 d = {s = d.s ! ten} ** {n = Pl} ;
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lin pot1plus d e = {
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s = \\c => d.s ! ten ! NCard ++ "-" ++ e.s ! unit ! c ; n = Pl} ;
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lin pot1as2 n = n ;
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lin pot2 d = {s = \\c => d.s ! unit ! NCard ++ mkCard c "hundred"} ** {n = Pl} ;
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lin pot2plus d e = {
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s = \\c => d.s ! unit ! NCard ++ "hundred" ++ "and" ++ e.s ! c ; n = Pl} ;
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lin pot2as3 n = n ;
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lin pot3 n = {
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s = \\c => n.s ! NCard ++ mkCard c "thousand" ; n = Pl} ;
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lin pot3plus n m = {
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s = \\c => n.s ! NCard ++ "thousand" ++ m.s ! c ; n = Pl} ;
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-- numerals as sequences of digits
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lincat
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Dig = TDigit ;
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lin
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IDig d = d ** {tail = T1} ;
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IIDig d i = {
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s = \\o => d.s ! NCard ++ commaIf i.tail ++ i.s ! o ;
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n = Pl ;
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tail = inc i.tail
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} ;
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D_0 = mkDig "0" ;
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D_1 = mk3Dig "1" "1st" Sg ;
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D_2 = mk2Dig "2" "2nd" ;
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D_3 = mk2Dig "3" "3rd" ;
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D_4 = mkDig "4" ;
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D_5 = mkDig "5" ;
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D_6 = mkDig "6" ;
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D_7 = mkDig "7" ;
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D_8 = mkDig "8" ;
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D_9 = mkDig "9" ;
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oper
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commaIf : DTail -> Str = \t -> case t of {
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T3 => "," ;
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_ => []
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} ;
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inc : DTail -> DTail = \t -> case t of {
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T1 => T2 ;
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T2 => T3 ;
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T3 => T1
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} ;
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mk2Dig : Str -> Str -> TDigit = \c,o -> mk3Dig c o Pl ;
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mkDig : Str -> TDigit = \c -> mk2Dig c (c + "th") ;
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mk3Dig : Str -> Str -> Number -> TDigit = \c,o,n -> {
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s = table {NCard => c ; NOrd => o} ;
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n = n
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} ;
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TDigit = {
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n : Number ;
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s : CardOrd => Str
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} ;
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}
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