private static function getListLength($text)
{
$i = 1;
$lastI = 0;
$foundEnd = false;
while ($i < strlen($text)) {
$curChar = substr($text, $i, 1);
if ($curChar == "i") {
$i = strpos($text, "e", $i);
if ($i === false) {
throw new IllegalArgumentException("BEncoded sublist/dictionary integer has no end");
}
$i++;
} elseif (is_numeric($curChar)) {
$seperatorPos = strpos($text, ":", $i);
// Search for the seperator
if ($seperatorPos === false) {
throw new IllegalArgumentException("BEncoded sublist/dictionary contains a string with no length specified");
}
$totalLength = substr($text, $i, $seperatorPos - $i);
$i = $seperatorPos + $totalLength + 1;
} elseif ($curChar == "d" || $curChar == "l") {
$i += BList::getListLength(substr($text, $i));
} elseif ($curChar == "e") {
$foundEnd = true;
break;
}
if ($i == $lastI) {
throw new IllegalArgumentException("BEncoded sublist/dictionary contains malfomed or unrecognized content");
}
$lastI = $i;
}
if (!$foundEnd) {
throw new IllegalArgumentException("BEncoded sublist/dictionary had no end");
}
return $i + 1;
}
