function shift_pop(&$d, $n = 1, $t = 0)
{
if (!is_int($n) || $n <= 0) {
$n = 1;
}
$j = 0;
$shift = 0;
$r = array();
$d = _drw($d);
for ($i = 0; $i < $n; $i++) {
if ($t == 0) {
if ($d->eq($i) !== null) {
$r[] = array($d->eq($i, KEYS), $d->eq($i));
}
} else {
if ($d->eq($n - $i) !== null) {
$r[] = array($d->eq($n - $i, KEYS), $d->eq($n - $i));
}
}
}
for ($i = 0; $i < $n; $i++) {
$t == 0 ? array_shift($d->O) : array_pop($d->O);
}
$d = $d->O;
return count($r) ? pure($r) : null;
}
function remove($k = null)
{
$s = $k == null ? $this->cell : $k->cell;
$j = '$this->cell_store->O';
$a = $this->cell_store->O;
if (isEle(_drw($s)->eq(0))) {
$s = array($s);
}
foreach ($s as $v1) {
$m = $this->cell_store->search($v1);
$this->removeChild($v1[0]);
if (!count($m[0])) {
continue;
}
foreach ($m[0] as $u) {
$w = explode('/', $u[1]);
for ($i = 0; $i < count($w); $i++) {
pure($w[$i]);
$j .= isset($a->O) ? "->O['" . $w[$i] . "']" : "['" . $w[$i] . "']";
$h = OBJ($a, false);
$a =& $h[$w[$i]];
}
eval('unset(' . $j . ');');
}
}
return $this;
}
static function c_attrs($a, $v = null)
{
$p = func_get_args();
$m = array();
if (isStr($a) && isNumStr($v)) {
$s = cur_doc()->createAttribute($a);
$s->value = $v;
return $s;
}
foreach ($p as $v) {
if (isDrw($v)) {
foreach ($v as $i => $k) {
$m[] = self::c_attrs($i, $k);
}
}
}
return pure($m);
}
