/**
* Calculate a mathematical expression that uses pokemath-numbers
*
* @param $expression
*
* @return Number
*/
public function calculate($expression)
{
$translatedExpression = $this->translate($expression);
$result = eval('return ' . $translatedExpression . ';');
$decimalResult = new Number($result);
// this is bad and needs some work
return $decimalResult->convert($this->numberSystem);
}
/**
* Parse the part of an expression.
*
* @param $part
*
* @return Number
*/
protected function parseExpressionPart($part, NumberSystem $sourceSystem, NumberSystem $targetSystem)
{
try {
// if it is a valid number of the source-system convert it
$sourceNumber = new Number($part, $sourceSystem);
return $sourceNumber->convert($targetSystem)->value();
} catch (NumberParseException $e) {
return $part;
}
}