Пример #1
0
 /**
  * @param  string                                      $input Source string of equation
  * @return array                                       Tokens stream
  * @throws \Z\Exception\IncorrectExpressionException
  */
 public function stringToTokensStream($input)
 {
     $matches = array();
     preg_match_all($this->tokenFactory->getTokenParserRegex(), $input, $matches);
     $tokenFactory = $this->tokenFactory;
     $matches = array_diff($matches[0], [""]);
     $tokensStream = array_map(function ($token) use($tokenFactory) {
         return $tokenFactory->createToken($token);
     }, $matches);
     return $tokensStream;
 }
Пример #2
0
 /**
  * Add function to executor
  *
  * @param  string       $name     Name of function
  * @param  callable     $function Function
  * @param  int          $places   Count of arguments
  * @return MathExecutor
  */
 public function addFunction($name, callable $function = null, $places = 1)
 {
     $this->tokenFactory->addFunction($name, $function, $places);
     return $this;
 }