/**
* @param Node $parent
* @param int $padding
* @param bool $omega
* @param string $prefix
* @return string
*/
protected function doDump(Node $parent, $padding = 0, $omega = false, $prefix = '')
{
$retval = '';
$xprefix = $prefix;
if ($omega) {
$prefix = $prefix . '└──';
} else {
if ($padding > 0) {
$prefix = $prefix . '├──';
}
}
$retval .= sprintf("%s%s\n", $prefix ? $prefix . ' ' : '', (string) $parent);
$prefix = $xprefix;
// reset
$children = $parent->getNodes();
$count = count($children);
if ($padding > 0) {
if ($omega) {
$prefix = $prefix . ' ';
} else {
$prefix = $prefix . '│ ';
}
}
foreach ($children as $n => $node) {
$omega = $count - 1 === $n;
$retval .= $this->doDump($node, $padding + 1, $omega, $prefix);
}
return $retval;
}
