RosettaCodeData/Task/Range-extraction/Oberon/range-extraction.oberon
2023-07-01 13:44:08 -04:00

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MODULE RangeExtraction;
IMPORT Out;
PROCEDURE Range(s: ARRAY OF INTEGER);
VAR
i,j: INTEGER;
PROCEDURE Emit(sep: CHAR);
BEGIN
IF i > 2 THEN
Out.Int(s[j],3);Out.Char('-');Out.Int(s[j + i - 1],3);Out.Char(sep);
INC(j,i)
ELSE
Out.Int(s[j],3);Out.Char(sep);
INC(j)
END;
END Emit;
BEGIN
j := 0;i := -1;
LOOP
INC(i);
IF j + i >= LEN(s) THEN
Emit(0AX);
EXIT
ELSIF s[j + i] # (s[j] + i) THEN
Emit(',');
i := 0;
END
END
END Range;
VAR
seq0: ARRAY 33 OF INTEGER;
seq1: ARRAY 20 OF INTEGER;
BEGIN
seq0[0] := 0;
seq0[1] := 1;
seq0[2] := 2;
seq0[3] := 4;
seq0[4] := 6;
seq0[5] := 7;
seq0[6] := 8;
seq0[7] := 11;
seq0[8] := 12;
seq0[9] := 14;
seq0[10] := 15;
seq0[11] := 16;
seq0[12] := 17;
seq0[13] := 18;
seq0[14] := 19;
seq0[15] := 20;
seq0[16] := 21;
seq0[17] := 22;
seq0[18] := 23;
seq0[19] := 24;
seq0[20] := 25;
seq0[21] := 27;
seq0[22] := 28;
seq0[23] := 29;
seq0[24] := 30;
seq0[25] := 31;
seq0[26] := 32;
seq0[27] := 33;
seq0[28] := 35;
seq0[29] := 36;
seq0[30] := 37;
seq0[31] := 38;
seq0[32] := 39;
Range(seq0);
seq1[0] := -6;
seq1[1] := -3;
seq1[2] := -2;
seq1[3] := -1;
seq1[4] := 0;
seq1[5] := 1;
seq1[6] := 3;
seq1[7] := 4;
seq1[8] := 5;
seq1[9] := 7;
seq1[10] := 8;
seq1[11] := 9;
seq1[12] := 10;
seq1[13] := 11;
seq1[14] := 14;
seq1[15] := 15;
seq1[16] := 17;
seq1[17] := 18;
seq1[18] := 19;
seq1[19] := 20;
Range(seq1)
END RangeExtraction.