vendor/twig/twig/lib/Twig/Extension/StringLoader.php

   1 <?php
   2
   3 /*
   4  * This file is part of Twig.
   5  *
   6  * (c) 2012 Fabien Potencier
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11 class Twig_Extension_StringLoader extends Twig_Extension
  12 {
  13     /**
  14      * {@inheritdoc}
  15      */
  16     public function getFunctions()
  17     {
  18         return array(
  19             new Twig_SimpleFunction('template_from_string', 'twig_template_from_string', array('needs_environment' => true)),
  20         );
  21     }
  22
  23     /**
  24      * {@inheritdoc}
  25      */
  26     public function getName()
  27     {
  28         return 'string_loader';
  29     }
  30 }
  31
  32 /**
  33  * Loads a template from a string.
  34  *
  35  * <pre>
  36  * {{ include(template_from_string("Hello {{ name }}")) }}
  37  * </pre>
  38  *
  39  * @param Twig_Environment $env      A Twig_Environment instance
  40  * @param string           $template A template as a string
  41  *
  42  * @return Twig_Template A Twig_Template instance
  43  */
  44 function twig_template_from_string(Twig_Environment $env, $template)
  45 {
  46     static $loader;
  47
  48     if (null === $loader) {
  49         $loader = new Twig_Loader_String();
  50     }
  51
  52     $current = $env->getLoader();
  53     $env->setLoader($loader);
  54     try {
  55         $template = $env->loadTemplate($template);
  56     } catch (Exception $e) {
  57         $env->setLoader($current);
  58
  59         throw $e;
  60     }
  61     $env->setLoader($current);
  62
  63     return $template;
  64 }