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String function in delphi

Posted on 2011-03-06
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Medium Priority
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Last Modified: 2012-08-13
Hello experts!
Please help me.

I have a list of websites.
I need to create a function that determinates what is the site extension (.ru or .com)

Plese help me.
Thanks
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Comment
Question by:helyonprime96
  • 2
  • 2
5 Comments
 
LVL 24

Accepted Solution

by:
jimyX earned 2000 total points
ID: 35046418
Sure here you are:
function Exturl(url: string): string;
begin
  url := StringReplace(url,'http://','',[rfIgnoreCase]);
  url := StringReplace(url,'www.','',[rfIgnoreCase]);
  if pos('/',url) > 0 then
    result := copy(url,pos('.',url),pos('/',url)-pos('.',url))
  else
    result := copy(url,pos('.',url),length(url));
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  showmessage(Exturl('test.com'));
end;

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0
 

Author Closing Comment

by:helyonprime96
ID: 35046456
thanks, it works
0
 

Author Comment

by:helyonprime96
ID: 35046485
please help me, how i can see this text between
<td valign="top">
and </td>

thanks
0
 
LVL 32

Expert Comment

by:Ephraim Wangoya
ID: 35046486

try



procedure TForm3.Button1Click(Sender: TObject);
begin
  ShowMessage(GetTopLevelDomain('http://www.experts-exchange.com/Programming/Languages/Pascal/Delphi/'));
end;

function GetTopLevelDomain(const AURL: string): string;
var
  Index: Integer;
  Temp: string;
begin
  Result := '';

  Temp := Trim(AURL);
  Index := Pos('//', AURL);
  if Index > 0 then
  begin
    Inc(Index, 2);
    Temp := Copy(Temp, Index, Length(Temp) - Index);
  end;

  Index := Pos('/', Temp);
  if Index > 0 then
    Temp := Copy(Temp, 1, Index-1);

  Index := Length(Temp);
  while (Index > 0) and (Temp[Index] <> '.') do
  begin
    Result := Temp[Index] + Result;
    Dec(Index);
  end;
end;

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0
 
LVL 24

Expert Comment

by:jimyX
ID: 35046599
procedure TForm1.Button1Click(Sender: TObject);
var
  str:string;
begin
  str:=Memo1.Text;
  repeat
    delete(str,1,pos('<td valign="top">',str)+ length('<td valign="top">')-1);
    showmessage(trim(copy(str,1,pos('</td>',str)-1)));
  until pos('<td valign="top">',Str) <= 0;
end;

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Now I lost some points ;-)
EE works this way: All new questions are always posted separately as long as they are not directly related to the original question (or answering them does not provide further clarification for it).
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