$ include "seed7_05.s7i";

const proc: main is func
  local
    var file: input is STD_NULL;
    var array array string: csvData is 0 times 0 times "";
    var integer: line is 0;
  begin
    input := open(dir(PROGRAM) & "/csvDataManipulation.in", "r");
    while hasNext(input) do
      csvData &:= split(getln(input), ",");
    end while;
    csvData[3][3] := "X";
    for key line range csvData do
      writeln(join(csvData[line], ","));
    end for;
  end func;