/**
* @return Annotation|false
*/
private static function parseLine($line)
{
if (empty($line) || $line[0] !== '@') {
return false;
}
$annotationName = '';
$annotationAttrs = array();
$state = State::START;
for ($i = 0, $len = strlen($line); $i < $len && $state != State::END; $i++) {
$c = $line[$i];
switch ($state) {
case State::START:
$state = Lexer::isAnnotationMarker($c) ? State::NAME : State::NOTANNOTATION;
break;
case State::NAME:
$p = self::getName($line, $len, $i);
if ($p == -1) {
$state = State::NOTANNOTATION;
} else {
$annotationName = substr($line, $i, $p);
$state = State::BEFOREBODY;
$i += $p - 1;
}
break;
case State::NOTANNOTATION:
return false;
case State::BEFOREBODY:
if (Lexer::isAttributesListStart($c)) {
$p = self::getBraketsBlock($line, $len, $i, $c);
if ($p != -1) {
$block = substr($line, $i, $p);
$i += $p - 1;
$annotationAttrs = self::getAttributes($block);
} else {
throw new ErrorException("Error parsing {$annotationName} annotation attributes");
}
}
if (Lexer::isSpace($c)) {
continue;
}
$state = State::END;
break;
default:
throw new RuntimeException("Wrong state: {$state}");
}
}
return new Annotation($annotationName, $annotationAttrs);
}
