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gf-core/grammars/numerals/Decimal.gf
2003-10-09 16:11:22 +00:00

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concrete Decimal of Numerals = open ResDecimal in {
flags lexer=chars ; unlexer=concat ;
lincat Sub100 = {s : Zeros => Str} ;
lincat Sub1000 = {s : Zeros => Str} ;
lincat Sub1000000 = {s : Zeros => Str} ;
lin num n = {s = n.s ! noz} ;
lin n2 = ss "2" ;
lin n3 = ss "3" ;
lin n4 = ss "4" ;
lin n5 = ss "5" ;
lin n6 = ss "6" ;
lin n7 = ss "7" ;
lin n8 = ss "8" ;
lin n9 = ss "9" ;
lin pot01 = ss "1" ;
lin pot0 d = d ;
lin pot110 = mkz ("1" ++ "0") ;
lin pot111 = mkz ("1" ++ "1") ;
lin pot1to19 d = mkz ("1" ++ d.s) ;
lin pot0as1 n = {s = table {noz => n.s ; zz => "0" ++ n.s}} ;
lin pot1 d = mkz (d.s ++ "0") ;
lin pot1plus d e = mkz (d.s ++ e.s) ;
lin pot1as2 n = {s = table {noz => n.s ! noz ; zz => "0" ++ n.s ! zz}} ;
lin pot2 d = mkz (d.s ++ "0" ++ "0") ;
lin pot2plus d e = mkz (d.s ++ e.s ! zz) ;
lin pot2as3 n = {s = table {noz => n.s ! noz ; zz => "0" ++ n.s ! zz}} ;
lin pot3 n = mkz (n.s ! noz ++ "0" ++ "0" ++ "0") ;
lin pot3plus n m = {s = table {z => n.s ! z ++ m.s ! zz}} ;
}