/**
* Loads a template from a string.
*
* <pre>
* {{ include(template_from_string("Hello {{ name }}")) }}
* </pre>
*
* @param IfwPsn_Vendor_Twig_Environment $env A IfwPsn_Vendor_Twig_Environment instance
* @param string $template A template as a string
*
* @return IfwPsn_Vendor_Twig_Template A IfwPsn_Vendor_Twig_Template instance
*/
function ifwpsn_twig_template_from_string(IfwPsn_Vendor_Twig_Environment $env, $template)
{
$name = sprintf('__string_template__%s', hash('sha256', uniqid(mt_rand(), true), false));
$loader = new IfwPsn_Vendor_Twig_Loader_Chain(array(new IfwPsn_Vendor_Twig_Loader_Array(array($name => $template)), $current = $env->getLoader()));
$env->setLoader($loader);
try {
$template = $env->loadTemplate($name);
} catch (Exception $e) {
$env->setLoader($current);
throw $e;
}
$env->setLoader($current);
return $template;
}
/**
* @param $string
* @param array $context
* @param null|callable $exceptionHandler
* @return string
*/
public function parse($string, $context = array(), $exceptionHandler = null)
{
if (!empty($string)) {
try {
if ($this->_env->getLoader() instanceof IfwPsn_Vendor_Twig_Loader_String) {
$string = $this->_sanitzeString($string);
}
$string = $this->_env->render($string, $context);
} catch (Exception $e) {
// invalid filter handling
if (is_callable($exceptionHandler)) {
call_user_func_array($exceptionHandler, array($e));
} else {
if ($this->_logger instanceof IfwPsn_Wp_Plugin_Logger) {
$this->_logger->err($e->getMessage());
}
}
}
}
return $string;
}
/**
* Returns a template content without rendering it.
*
* @param string $name The template name
*
* @return string The template source
*/
function ifwpsn_twig_source(IfwPsn_Vendor_Twig_Environment $env, $name)
{
return $env->getLoader()->getSource($name);
}