private $m_name;

private $m_options;

public function __construct($name, $options) {

$this->m_name = $name;

$this->m_options = $options;

}

public function name() {

return $this->m_name;

}

public function evaluate(TemplateManager $manager, $context, $value) {

$filter = $manager->filter($this->m_name);

if (!$filter) {

throw new \Exception("Unknown filter `$this->m_name`");

}

return $filter($this->m_options, $context, $value);

}

public function __toString() {

$str = $this->m_name;

$options = $this->m_options;

if ($options && count($options)) {

$parts = [];

foreach ($options as $key => $val) {

$parts[] = is_string($val) ? "$key=$val" : $key;

}

$str .= sprintf('[%s]', implode(',', $parts));

}

return $str;

}

}