/**
* Tests ExpLexer::process
*/
public function testProcess()
{
$actualTokenStream = ExpLexer::process($this->input);
$this->assertEquals($this->tokenStream, $actualTokenStream);
}
/**
* Evaluates the given $expression using the $dataContext as variable source.
*
* Internally the ExpressionParser uses a infix to postfix conversion to easily
* be able to evaluate mathematical expressions
*
* @param string $expression
* @param array $dataContext
* @return string evaluated result or an exception of failure
*/
public static function evaluate($expression, $dataContext)
{
$outputTokens = ExpLexer::process($expression);
$result = ExpParser::parse($outputTokens, $dataContext);
return $result->value;
}
