/**
* @param string $name
* @return BaseToken
* @throws Exceptions\ParserException
*/
public function getVariable($name)
{
if (!array_key_exists($name, $this->variables)) {
$token = $this->stack->current();
throw new Exceptions\ParserException(sprintf('Undefined variable "%s" at position %d on line %d', $name, $token->getPosition(), $token->getLine()));
}
return TokenFactory::createFromPHPType($this->variables[$name]);
}
/**
* {@inheritdoc}
*/
public function tokenize($string)
{
$stack = new Stack();
$regex = $this->getRegex();
$baseNameSpace = __NAMESPACE__ . '\\Tokens\\Token';
$offset = 0;
while (preg_match($regex, $string, $matches, 0, $offset)) {
$token = $this->getMatchedToken($matches);
$className = $baseNameSpace . $token;
$stack->attach(new $className($matches[$token], $offset, $stack));
$offset += strlen($matches[0]);
}
return $stack;
}