RobotsFile::addRule

public function addRule($rule, $section = '*', $bCheckUnique = true)
{
	$this->load();
	if($bCheckUnique)
	{
		$strRule = ToUpper($this->getRuleText($rule));
		$arRules = $this->getSection($section);
		foreach($arRules as $existingRule)
		{
			$strExistingRule = ToUpper($this->getRuleText($existingRule));
			if($strRule == $strExistingRule)
			{
				return true;
			}
		}
	}

	$this->addSectionRule($section, $rule);

	$this->save();
}