reginaldojunior / winners

			} elseif ($opCharacter == ')' && $expectingOperator) {			//	Are we expecting to close a parenthesis?

//				echo 'Element is a Closing bracket<br />';

				$expectingOperand = false;

				while (($o2 = $stack->pop()) && $o2['value'] != '(') {		//	Pop off the stack back to the last (

					if ($o2 === NULL) return $this->_raiseFormulaError('Formula Error: Unexpected closing brace ")"');

					else $output[] = $o2;

				}

				$d = $stack->last(2);

				if (preg_match('/^'.self::CALCULATION_REGEXP_FUNCTION.'$/i', $d['value'], $matches)) {	//	Did this parenthesis just close a function?

					$functionName = $matches[1];										//	Get the function name

			} elseif ($opCharacter == ',') {			//	Is this the separator for function arguments?

//				echo 'Element is a Function argument separator<br />';

				while (($o2 = $stack->pop()) && $o2['value'] != '(') {		//	Pop off the stack back to the last (

					if ($o2 === NULL) return $this->_raiseFormulaError("Formula Error: Unexpected ,");

					else $output[] = $o2;	// pop the argument expression stuff and push onto the output

				}

				//	If we've a comma when we're expecting an operand, then what we actually have is a null operand;

				//		so push a null onto the stack

				if (($expectingOperand) || (!$expectingOperator)) {

			}

		}

		while (($op = $stack->pop()) !== NULL) {	// pop everything off the stack and push onto output

			if ((is_array($opCharacter) && $opCharacter['value'] == '(') || ($opCharacter === '('))

				return $this->_raiseFormulaError("Formula Error: Expecting ')'");	// if there are any opening braces on the stack, then braces were unbalanced

			$output[] = $op;

		}

		return $output;

	}	//	function _parseFormula()