public function rcalc($operator, $operand) {
$out = [];
foreach ($this->values as $value) {
$out[] = CalcOperation::calc($operator, $value, $operand);
}
return new CalcSet($out);
}
function calc($vars = array())
{
$stack = array();
foreach ($this->rpn as $step) {
if (is_object($step) || !isset($this->ooo[$step])) {
$stack[] = $step;
} else {
//echo "Operation: {$step}\n";
//print_r($stack);
$r1 = array_pop($stack);
$r2 = array_pop($stack);
if (is_numeric($r1) && is_numeric($r2)) {
$stack[] = CalcOperation::calc($step, $r1, $r2);
}
if ($r1 instanceof CalcSet && is_numeric($r2)) {
$stack[] = $r1->calc($step, $r2);
}
if (is_numeric($r1) && $r2 instanceof CalcSet) {
$stack[] = $r2->rcalc($step, $r1);
}
}
}
if (count($stack) > 1) {
return 'Missing operator near "' . $stack[1] . '".';
} else {
$out = reset($stack);
if (is_bool($out)) {
return $out ? '<span class="true">true</span>' : '<span class="false">false</span>';
} else {
return $out;
}
}
}
/**
* @return mixed|string
* @throws \Exception
*/
public function __invoke() {
$stack = [];
foreach ($this->rpn as $step) {
if (is_object($step) || !isset($this->ooo[$step])) {
$stack[] = $step;
} else {
$r1 = array_pop($stack);
$r2 = array_pop($stack);
if (is_numeric($r1) && is_numeric($r2)) {
$stack[] = CalcOperation::calc($step, $r2, $r1);
}
if ($r1 instanceof CalcSet && is_numeric($r2)) {
$stack[] = $r1->calc($step, $r2);
}
if (is_numeric($r1) && $r2 instanceof CalcSet) {
$stack[] = $r2->rcalc($step, $r1);
}
if ($r1 instanceof CalcSet && $r2 instanceof CalcSet) {
$stack[] = $r1->mcalc($step, $r2);
}
}
}
if (count($stack) > 1) {
throw new \Exception('Missing operator near "' . $stack[1] . '".');
} else {
$out = reset($stack);
return $out;
}
}