function marked($str = NULL)
{
if ($str === NULL) {
return $this->marked_lines;
}
// If only an int is given
if (is_int($str)) {
$array = array($str);
return CrayonUtil::arr($this->marked_lines, $array);
}
// A string with ints separated by commas, can also contain ranges
$array = CrayonUtil::trim_e($str);
$array = array_unique($array);
$lines = array();
foreach ($array as $line) {
// Check for ranges
if (strpos($line, '-') !== FALSE) {
$ranges = CrayonUtil::range_str($line);
$lines = array_merge($lines, $ranges);
} else {
// Otherwise check the string for a number
$line = intval($line);
if ($line !== 0) {
$lines[] = $line;
}
}
}
return CrayonUtil::arr($this->marked_lines, $lines);
}
