1627                 [, $op, $exp] = $value;
1631                     switch ($op) {
1639                 return array("string", "", array($op, $exp));
1716         [, $op, $left, $right, $whiteBefore, $whiteAfter] = $exp;
1733         if ($op == "and") {
1737         if ($op == "=") {
1741         if ($op == "+" && !is_null($str = $this->stringConcatenate($left, $right))) {
1748             $out = $this->$fname($op, $left, $right);
1753         $paddedOp = $op;
1858     protected function op_number_color($op, $lft, $rgt) {  argument
1859         if ($op == '+' || $op == '*') {
1860             return $this->op_color_number($op, $rgt, $lft);
1864     protected function op_color_number($op, $lft, $rgt) {  argument
1867         return $this->op_color_color($op, $lft,
1871     protected function op_color_color($op, $left, $right) {  argument
1877             switch ($op) {
1895                     $this->throwError('evaluate error: color op number failed on op '.$op);
1930     protected function op_number_number($op, $left, $right) {  argument
1934         switch ($op) {
1960                 $this->throwError('parse error: unknown number operator: '.$op);