How to split a string in Inno Setup

I've been looking for the same thing today...

This one works just fine on Inno Setup Scripts. Paste this excerpt inside your script before the procedure/function which will call this "split" procedure.

You can also modify this onto a function, if you desire...

procedure Explode(var Dest: TArrayOfString; Text: String; Separator: String);
var
  i, p: Integer;
begin
  i := 0;
  repeat
    SetArrayLength(Dest, i+1);
    p := Pos(Separator,Text);
    if p > 0 then begin
      Dest[i] := Copy(Text, 1, p-1);
      Text := Copy(Text, p + Length(Separator), Length(Text));
      i := i + 1;
    end else begin
      Dest[i] := Text;
      Text := '';
    end;
  until Length(Text)=0;
end;

procedure Whatever();
var 
  str: String;
  strArray: TArrayOfString;
  i: Integer;
begin
  Explode(strArray,str,'.');
  for i:=0 to GetArrayLength(strArray)-1 do begin
    { do something }
  end;
end;

Taken from here

For anyone who prefers the function format, I have modified @cezarlamann's answer:

function StrSplit(Text: String; Separator: String): TArrayOfString;
var
  i, p: Integer;
  Dest: TArrayOfString; 
begin
  i := 0;
  repeat
    SetArrayLength(Dest, i+1);
    p := Pos(Separator,Text);
    if p > 0 then begin
      Dest[i] := Copy(Text, 1, p-1);
      Text := Copy(Text, p + Length(Separator), Length(Text));
      i := i + 1;
    end else begin
      Dest[i] := Text;
      Text := '';
    end;
  until Length(Text)=0;
  Result := Dest
end;