/**
* _setISBNBody()
*
* Setter for ISBNBody
*
* @param string $body ISBNBody
*
* @return void
*
* @throws ISBN_Exception in case it fails
*/
function _setISBNBody($body)
{
/* validate parameter */
if (is_string($body) == false) {
return new ISBN_Exception('Not a Body: wrong variabletype');
}
if (strlen($body) != 9) {
return new ISBN_Exception('Not a Body: wrong body length');
}
if (ctype_digit($body) !== true) {
return new ISBN_Exception('Not a Body: syntactically not a body');
}
/* validate body by extracting and validating parts */
$group = false;
$subbody = false;
$r = ISBN::_isbnBodyParts($body, $group, $subbody);
if ($r == false) {
return new ISBN_Exception('Invalid Body');
}
$e = $this->_setGroup($group);
if ("ISBN_Exception" == get_class($e)) {
return new ISBN_Exception('Invalid Body: Group is invalid', $e);
}
$e = $this->_setISBNSubbody($subbody);
if ("ISBN_Exception" == get_class($e)) {
return new ISBN_Exception('Invalid Body: Subbody is invalid (' . $e->getMessage() . ')', $e);
}
}
