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...extract words out of a string?
Autor: Thomas Stutz
[ Print tip ]  

Tip Rating (11):  
     


function GetToken(aString, SepChar: string; TokenNum: Byte): string;
var
  
Token: string;
  StrLen: Integer;
  Num: Integer;
  EndofToken: Integer;
begin
  
StrLen := Length(aString);
  Num := 1;
  EndofToken := StrLen;
  while ((Num <= TokenNum) and (EndofToken <> 0)) do
  begin
    
EndofToken := Pos(SepChar, aString);
    if EndofToken <> 0 then
    begin
      
Token := Copy(aString, 1, EndofToken - 1);
      Delete(aString, 1, EndofToken);
      Inc(Num);
    end
    else
      
Token := aString;
  end;
  if Num >= TokenNum then
    
Result := Token
  else
    
Result := '';
end;


//Example/Beispiel:


 
GetToken('Word1 Word2 Word3', 2, ' ') = 'Word2'
 GetToken('Word1/Word2/Word3', 2, '/') = 'Word2'

 

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