_out = [str _out,'"','']  call {
            private["_str","_old","_new","_out","_tmp","_jm","_la","_lo","_ln","_i"];
            _str=_this select 0;
            _arr=toArray(_str);
            _la=count _arr;
            _old=_this select 1;
            _new=_this select 2;
            _na=[_new] call {
                private["_in","_i","_arr","_out"];
                _in=_this select 0;
                _arr = toArray(_in);
                _out=[];
                for "_i" from 0 to (count _arr)-1 do {
                    _out=_out+[toString([_arr select _i])];
                };
                _out
            };
            _lo=[_old] call {
                private["_in","_arr","_len"];
                _in=_this select 0;
                _arr=[_in] call {
                    private["_in","_i","_arr","_out"];
                    _in=_this select 0;
                    _arr = toArray(_in);
                    _out=[];
                    for "_i" from 0 to (count _arr)-1 do {
                        _out=_out+[toString([_arr select _i])];
                    };
                    _out
                };
                _len=count (_arr);
                _len
            };
            _ln=[_new] call {
                private["_in","_arr","_len"];
                _in=_this select 0;
                _arr=[_in] call {
                    private["_in","_i","_arr","_out"];
                    _in=_this select 0;
                    _arr = toArray(_in);
                    _out=[];
                    for "_i" from 0 to (count _arr)-1 do {
                        _out=_out+[toString([_arr select _i])];
                    };
                    _out
                };
                _len=count (_arr);
                _len
            };
            _out="";
            for "_i" from 0 to (count _arr)-1 do {
                _tmp="";
                if (_i <= _la-_lo) then {
                    for "_j" from _i to (_i+_lo-1) do {
                        _tmp=_tmp + toString([_arr select _j]);
                    };
                };
                if (_tmp==_old) then {
                    _out=_out+_new;
                    _i=_i+_lo-1;
                } else {
                    _out=_out+toString([_arr select _i]);
                };
            };
            _out
        }