Quantas palavras existem?

Function CountedWords(const WordText:String):Integer;
// deve ser declarada na clausua Var da unit:
// KeyCharsSet: set of Char = [ '.', ',', '''', ';', ':', ' ',#13,#10,#9 ];
var
i: Integer;
F1,F2: boolean;
begin
result := 0;
for i := 1 to length(WordText)-1 do
begin
F1 := not( WordText[i] in KeyCharsSet)
F2 := not( WordText[i+1] in KeyCharsSet)
if (F1 and not F2) or ((i = length(WordText)-1)and F2) then
begin
result := result + 1;
end;
end;
if(length(WordText)=1)and Not( WordText[1] in KeyCharsSet) then
begin
result := 1;
end;
end;