/**
* Execute the helper
*
* @param \Handlebars\Template $template The template instance
* @param \Handlebars\Context $context The current context
* @param \Handlebars\Arguments $args The arguments passed the the helper
* @param string $source The source
*
* @return mixed
*/
public function execute(Template $template, Context $context, $args, $source)
{
$positionalArgs = $args->getPositionalArguments();
$tmp = $context->get($positionalArgs[0]);
$buffer = '';
if (!$tmp) {
$template->setStopToken('else');
$template->discard();
$template->setStopToken(false);
$buffer = $template->render($context);
} elseif (is_array($tmp) || $tmp instanceof \Traversable) {
$isList = is_array($tmp) && array_keys($tmp) === range(0, count($tmp) - 1);
$index = 0;
$lastIndex = $isList ? count($tmp) - 1 : false;
foreach ($tmp as $key => $var) {
$specialVariables = array('@index' => $index, '@first' => $index === 0, '@last' => $index === $lastIndex);
if (!$isList) {
$specialVariables['@key'] = $key;
}
$context->pushSpecialVariables($specialVariables);
$context->push($var);
$template->setStopToken('else');
$template->rewind();
$buffer .= $template->render($context);
$context->pop();
$context->popSpecialVariables();
$index++;
}
$template->setStopToken(false);
}
return $buffer;
}
/**
* Execute the helper
*
* @param \Handlebars\Template $template The template instance
* @param \Handlebars\Context $context The current context
* @param \Handlebars\Arguments $args The arguments passed the the helper
* @param string $source The source
*
* @return mixed
*/
public function execute(Template $template, Context $context, $args, $source)
{
$positionalArgs = $args->getPositionalArguments();
$context->with($positionalArgs[0]);
$buffer = $template->render($context);
$context->pop();
return $buffer;
}
/**
* Break an argument string into an array of strings
*
* @param string $string Argument String as passed to a helper
*
* @throws \RuntimeException
* @return array the argument list as an array
*/
public function parseArguments($string)
{
if ($string instanceof Arguments) {
// This code is needed only for backward compatibility
$args = $string;
} else {
$args = new Arguments($string);
}
return $args->getPositionalArguments();
}