Dannata regexp

[stefano3804]

io ho fatto cosi

function auto_url($text) {
    $ret = " " . $text;
    $ret = preg_replace("#([\n ])([a-z]+?)://([^, \n\r]+)#i", "\\1<a href=\"\\2://\\3\" target=\"_blank\">\\2://\\3</a>", $ret);
    $ret = preg_replace("#([\n ])www\.([a-z0-9\-]+)\.([a-z0-9\-.\~]+)((?:/[^, \n\r]*)?)#i", "\\1<a href=\"http://www.\\2.\\3\\4\" target=\"_blank\">[url]www.\\2.\\3\\4[/url]</a>", $ret);
    $ret = preg_replace("#([\n ])([a-z0-9\-_.]+?)@([^, \n\r]+)#i", "\\1<a href=\"mailto:\\2@\\3\">\\2@\\3</a>", $ret);
    $ret = substr($ret, 1);
    return($ret);
}