Explode / Implode a string

// 1. ...............................................

type
  TStrArray = array of string;
 
function Explode(var a: TStrArray; Border, S: string): Integer;
var
  S2: string;
begin
  Result  := 0;
  S2 := S + Border;
  repeat
    SetLength(A, Length(A) + 1);
    a[Result] := Copy(S2, 0,Pos(Border, S2) - 1);
    Delete(S2, 1,Length(a[Result] + Border));
    Inc(Result);
  until S2 = '';
end;

// How to use it:

procedure TForm1.Button1Click(Sender: TObject);
var
  S: string;
  A: TStrArray;
  AnzTokens, i: Integer;
begin
  S := 'Ein=Text=durch=Geleichzeichen=getrennt';
  AnzTokens := Explode(A, '=', S);
  for i := 0 to AnzTokens -1 do
    Memo1.Lines.Add(A[i]);
end;

// 2. ...............................................

{
  * These 2 functions are from the programming language PHP, unite certainly well-known.
  * Now one can use it also in Delphi:)
}
 
{...}
 
//* Needed type declaration
type
  TExplodeArray = array of String;
 
{...}
 
function Implode(const cSeparator: String; const cArray: TExplodeArray): String;
var
  i: Integer;
begin
  Result := '';
  for i := 0 to Length(cArray) -1 do begin
    Result := Result + cSeparator + cArray[i];
  end;
  System.Delete(Result, 1, Length(cSeparator));
end;
 
function Explode(const cSeparator, vString: String): TExplodeArray;
var
  i: Integer;
  S: String;
begin
  S := vString;
  SetLength(Result, 0);
  i := 0;
  while Pos(cSeparator, S) > 0 do begin
    SetLength(Result, Length(Result) +1);
    Result[i] := Copy(S, 1, Pos(cSeparator, S) -1);
    Inc(i);
    S := Copy(S, Pos(cSeparator, S) + Length(cSeparator), Length(S));
  end;
  SetLength(Result, Length(Result) +1);
  Result[i] := Copy(S, 1, Length(S));
end;

Взято с сайта https://www.swissdelphicenter.ch/en/tipsindex.php