Auf Thema antworten 2026

Beitrag

<blockquote data-quote="Metty" data-source="post: 2687139" data-attributes="member: 571615">[PHP]&lt;?php/** This file is part of Twig.** (c) Fabien Potencier** For the full copyright and license information, please view the LICENSE* file that was distributed with this source code.*//*** Stores the Twig configuration.** @author Fabien Potencier &lt;fabien@symfony.com&gt;*/class Twig_Environment{&nbsp; &nbsp; const VERSION = &#039;2.3.2&#039;;&nbsp; &nbsp; const VERSION_ID = 20302;&nbsp; &nbsp; const MAJOR_VERSION = 2;&nbsp; &nbsp; const MINOR_VERSION = 3;&nbsp; &nbsp; const RELEASE_VERSION = 2;&nbsp; &nbsp; const EXTRA_VERSION = &#039;&#039;;&nbsp; &nbsp; private $charset;&nbsp; &nbsp; private $loader;&nbsp; &nbsp; private $debug;&nbsp; &nbsp; private $autoReload;&nbsp; &nbsp; private $cache;&nbsp; &nbsp; private $lexer;&nbsp; &nbsp; private $parser;&nbsp; &nbsp; private $compiler;&nbsp; &nbsp; private $baseTemplateClass;&nbsp; &nbsp; private $globals = array();&nbsp; &nbsp; private $resolvedGlobals;&nbsp; &nbsp; private $loadedTemplates;&nbsp; &nbsp; private $strictVariables;&nbsp; &nbsp; private $templateClassPrefix = &#039;__TwigTemplate_&#039;;&nbsp; &nbsp; private $originalCache;&nbsp; &nbsp; private $extensionSet;&nbsp; &nbsp; private $runtimeLoaders = array();&nbsp; &nbsp; private $runtimes = array();&nbsp; &nbsp; private $optionsHash;&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Constructor.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * Available options:&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; *&nbsp; * debug: When set to true, it automatically set &quot;auto_reload&quot; to true as&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; well (default to false).&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; *&nbsp; * charset: The charset used by the templates (default to UTF-8).&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; *&nbsp; * base_template_class: The base template class to use for generated&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; templates (default to Twig_Template).&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; *&nbsp; * cache: An absolute path where to store the compiled templates,&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; a Twig_Cache_Interface implementation,&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; or false to disable compilation cache (default).&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; *&nbsp; * auto_reload: Whether to reload the template if the original source changed.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; If you don&#039;t provide the auto_reload option, it will be&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; determined automatically based on the debug value.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; *&nbsp; * strict_variables: Whether to ignore invalid variables in templates&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (default to false).&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; *&nbsp; * autoescape: Whether to enable auto-escaping (default to html):&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; * false: disable auto-escaping&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; * html, js: set the autoescaping to one of the supported strategies&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; * name: set the autoescaping strategy based on the template name extension&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; * PHP callback: a PHP callback that returns an escaping strategy based on the template &quot;name&quot;&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; *&nbsp; * optimizations: A flag that indicates which optimizations to apply&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; (default to -1 which means that all optimizations are enabled;&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; set it to 0 to disable).&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param Twig_LoaderInterface $loader&nbsp; &nbsp;&nbsp; * @param array&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $options An array of options&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function __construct(Twig_LoaderInterface $loader, $options = array())&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;setLoader($loader);&nbsp; &nbsp; &nbsp; &nbsp; $options = array_merge(array(&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &#039;debug&#039; =&gt; false,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &#039;charset&#039; =&gt; &#039;UTF-8&#039;,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &#039;base_template_class&#039; =&gt; &#039;Twig_Template&#039;,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &#039;strict_variables&#039; =&gt; false,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &#039;autoescape&#039; =&gt; &#039;html&#039;,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &#039;cache&#039; =&gt; false,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &#039;auto_reload&#039; =&gt; null,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &#039;optimizations&#039; =&gt; -1,&nbsp; &nbsp; &nbsp; &nbsp; ), $options);&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;debug = (bool) $options[&#039;debug&#039;];&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;setCharset($options[&#039;charset&#039;]);&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;baseTemplateClass = $options[&#039;base_template_class&#039;];&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;autoReload = null === $options[&#039;auto_reload&#039;] ? $this-&gt;debug : (bool) $options[&#039;auto_reload&#039;];&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;strictVariables = (bool) $options[&#039;strict_variables&#039;];&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;setCache($options[&#039;cache&#039;]);&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet = new Twig_ExtensionSet();&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;addExtension(new Twig_Extension_Core());&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;addExtension(new Twig_Extension_Escaper($options[&#039;autoescape&#039;]));&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;addExtension(new Twig_Extension_Optimizer($options[&#039;optimizations&#039;]));&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the base template class for compiled templates.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return string The base template class name&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getBaseTemplateClass()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;baseTemplateClass;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Sets the base template class for compiled templates.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $class The base template class name&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function setBaseTemplateClass($class)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;baseTemplateClass = $class;&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;updateOptionsHash();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Enables debugging mode.&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function enableDebug()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;debug = true;&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;updateOptionsHash();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Disables debugging mode.&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function disableDebug()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;debug = false;&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;updateOptionsHash();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Checks if debug mode is enabled.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return bool true if debug mode is enabled, false otherwise&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function isDebug()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;debug;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Enables the auto_reload option.&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function enableAutoReload()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;autoReload = true;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Disables the auto_reload option.&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function disableAutoReload()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;autoReload = false;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Checks if the auto_reload option is enabled.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return bool true if auto_reload is enabled, false otherwise&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function isAutoReload()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;autoReload;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Enables the strict_variables option.&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function enableStrictVariables()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;strictVariables = true;&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;updateOptionsHash();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Disables the strict_variables option.&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function disableStrictVariables()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;strictVariables = false;&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;updateOptionsHash();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Checks if the strict_variables option is enabled.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return bool true if strict_variables is enabled, false otherwise&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function isStrictVariables()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;strictVariables;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the current cache implementation.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param bool $original Whether to return the original cache option or the real cache instance&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_CacheInterface|string|false A Twig_CacheInterface implementation,&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; an absolute path to the compiled templates,&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; or false to disable cache&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getCache($original = true)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $original ? $this-&gt;originalCache : $this-&gt;cache;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Sets the current cache implementation.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param Twig_CacheInterface|string|false $cache A Twig_CacheInterface implementation,&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; an absolute path to the compiled templates,&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; or false to disable cache&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function setCache($cache)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; if (is_string($cache)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;originalCache = $cache;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;cache = new Twig_Cache_Filesystem($cache);&nbsp; &nbsp; &nbsp; &nbsp; } elseif (false === $cache) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;originalCache = $cache;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;cache = new Twig_Cache_Null();&nbsp; &nbsp; &nbsp; &nbsp; } elseif ($cache instanceof Twig_CacheInterface) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;originalCache = $this-&gt;cache = $cache;&nbsp; &nbsp; &nbsp; &nbsp; } else {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; throw new LogicException(sprintf(&#039;Cache can only be a string, false, or a Twig_CacheInterface implementation.&#039;));&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the template class associated with the given string.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * The generated template class is based on the following parameters:&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; *&nbsp; * The cache key for the given template;&nbsp; &nbsp;&nbsp; *&nbsp; * The currently enabled extensions;&nbsp; &nbsp;&nbsp; *&nbsp; * Whether the Twig C extension is available or not;&nbsp; &nbsp;&nbsp; *&nbsp; * PHP version;&nbsp; &nbsp;&nbsp; *&nbsp; * Twig version;&nbsp; &nbsp;&nbsp; *&nbsp; * Options with what environment was created.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string&nbsp;&nbsp; $name&nbsp; The name for which to calculate the template class name&nbsp; &nbsp;&nbsp; * @param int|null $index The index if it is an embedded template&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return string The template class name&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getTemplateClass($name, $index = null)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $key = $this-&gt;getLoader()-&gt;getCacheKey($name).$this-&gt;optionsHash;&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;templateClassPrefix.hash(&#039;sha256&#039;, $key).(null === $index ? &#039;&#039; : &#039;_&#039;.$index);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Renders a template.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $name&nbsp; &nbsp; The template name&nbsp; &nbsp;&nbsp; * @param array&nbsp; $context An array of parameters to pass to the template&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return string The rendered template&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Loader&nbsp; When the template cannot be found&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Syntax&nbsp; When an error occurred during compilation&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Runtime When an error occurred during rendering&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function render($name, array $context = array())&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;loadTemplate($name)-&gt;render($context);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Displays a template.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $name&nbsp; &nbsp; The template name&nbsp; &nbsp;&nbsp; * @param array&nbsp; $context An array of parameters to pass to the template&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Loader&nbsp; When the template cannot be found&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Syntax&nbsp; When an error occurred during compilation&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Runtime When an error occurred during rendering&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function display($name, array $context = array())&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;loadTemplate($name)-&gt;display($context);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Loads a template.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string|Twig_TemplateWrapper|Twig_Template $name The template name&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_TemplateWrapper&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function load($name)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; if ($name instanceof Twig_TemplateWrapper) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $name;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; if ($name instanceof Twig_Template) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return new Twig_TemplateWrapper($this, $name);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; return new Twig_TemplateWrapper($this, $this-&gt;loadTemplate($name));&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Loads a template internal representation.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * This method is for internal use only and should never be called&nbsp; &nbsp;&nbsp; * directly.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $name&nbsp; The template name&nbsp; &nbsp;&nbsp; * @param int&nbsp; &nbsp; $index The index if it is an embedded template&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_Template A template instance representing the given template name&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Loader&nbsp; When the template cannot be found&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Runtime When a previously generated cache is corrupted&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Syntax&nbsp; When an error occurred during compilation&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function loadTemplate($name, $index = null)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $cls = $mainCls = $this-&gt;getTemplateClass($name);&nbsp; &nbsp; &nbsp; &nbsp; if (null !== $index) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $cls .= &#039;_&#039;.$index;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; if (isset($this-&gt;loadedTemplates[$cls])) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;loadedTemplates[$cls];&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; if (!class_exists($cls, false)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $key = $this-&gt;cache-&gt;generateKey($name, $mainCls);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (!$this-&gt;isAutoReload() || $this-&gt;isTemplateFresh($name, $this-&gt;cache-&gt;getTimestamp($key))) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;cache-&gt;load($key);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (!class_exists($cls, false)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $source = $this-&gt;getLoader()-&gt;getSourceContext($name);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $content = $this-&gt;compileSource($source);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;cache-&gt;write($key, $content);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;cache-&gt;load($key);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (!class_exists($mainCls, false)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; /* Last line of defense if either $this-&gt;bcWriteCacheFile was used,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; * $this-&gt;cache is implemented as a no-op or we have a race condition&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; * where the cache was cleared between the above calls to write to and load from&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; * the cache.&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; eval(&#039;?&gt;&#039;.$content);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (!class_exists($cls, false)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; throw new Twig_Error_Runtime(sprintf(&#039;Failed to load Twig template &quot;%s&quot;, index &quot;%s&quot;: cache is corrupted.&#039;, $name, $index), -1, $source);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; // to be removed in 3.0&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;initRuntime($this);&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;loadedTemplates[$cls] = new $cls($this);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Creates a template from source.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * This method should not be used as a generic way to load templates.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $template The template name&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_Template A template instance representing the given template name&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Loader When the template cannot be found&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Syntax When an error occurred during compilation&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function createTemplate($template)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $name = sprintf(&#039;__string_template__%s&#039;, hash(&#039;sha256&#039;, uniqid(mt_rand(), true), false));&nbsp; &nbsp; &nbsp; &nbsp; $loader = new Twig_Loader_Chain(array(&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; new Twig_Loader_Array(array($name =&gt; $template)),&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $current = $this-&gt;getLoader(),&nbsp; &nbsp; &nbsp; &nbsp; ));&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;setLoader($loader);&nbsp; &nbsp; &nbsp; &nbsp; try {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $template = $this-&gt;loadTemplate($name);&nbsp; &nbsp; &nbsp; &nbsp; } finally {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;setLoader($current);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; return $template;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Returns true if the template is still fresh.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * Besides checking the loader for freshness information,&nbsp; &nbsp;&nbsp; * this method also checks if the enabled extensions have&nbsp; &nbsp;&nbsp; * not changed.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $name The template name&nbsp; &nbsp;&nbsp; * @param int&nbsp; &nbsp; $time The last modification time of the cached template&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return bool true if the template is fresh, false otherwise&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function isTemplateFresh($name, $time)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getLastModified() &lt;= $time &amp;&amp; $this-&gt;getLoader()-&gt;isFresh($name, $time);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Tries to load a template consecutively from an array.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * Similar to loadTemplate() but it also accepts Twig_Template instances and an array&nbsp; &nbsp;&nbsp; * of templates where each is tried to be loaded.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string|Twig_Template|array $names A template or an array of templates to try consecutively&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_Template&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Loader When none of the templates can be found&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Syntax When an error occurred during compilation&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function resolveTemplate($names)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; if (!is_array($names)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $names = array($names);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; foreach ($names as $name) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if ($name instanceof Twig_Template) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $name;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; try {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;loadTemplate($name);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } catch (Twig_Error_Loader $e) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; if (1 === count($names)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; throw $e;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; throw new Twig_Error_Loader(sprintf(&#039;Unable to find one of the following templates: &quot;%s&quot;.&#039;, implode(&#039;&quot;, &quot;&#039;, $names)));&nbsp; &nbsp; }&nbsp; &nbsp; public function setLexer(Twig_Lexer $lexer)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;lexer = $lexer;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Tokenizes a source code.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_TokenStream&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Syntax When the code is syntactically wrong&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function tokenize(Twig_Source $source)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; if (null === $this-&gt;lexer) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;lexer = new Twig_Lexer($this);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;lexer-&gt;tokenize($source);&nbsp; &nbsp; }&nbsp; &nbsp; public function setParser(Twig_Parser $parser)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;parser = $parser;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Converts a token stream to a node tree.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_Node_Module&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Syntax When the token stream is syntactically or semantically wrong&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function parse(Twig_TokenStream $stream)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; if (null === $this-&gt;parser) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;parser = new Twig_Parser($this);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;parser-&gt;parse($stream);&nbsp; &nbsp; }&nbsp; &nbsp; public function setCompiler(Twig_Compiler $compiler)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;compiler = $compiler;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Compiles a node and returns the PHP code.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return string The compiled PHP source code&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function compile(Twig_Node $node)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; if (null === $this-&gt;compiler) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;compiler = new Twig_Compiler($this);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;compiler-&gt;compile($node)-&gt;getSource();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Compiles a template source code.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return string The compiled PHP source code&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Syntax When there was an error during tokenizing, parsing or compiling&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function compileSource(Twig_Source $source)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; try {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;compile($this-&gt;parse($this-&gt;tokenize($source)));&nbsp; &nbsp; &nbsp; &nbsp; } catch (Twig_Error $e) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $e-&gt;setSourceContext($source);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; throw $e;&nbsp; &nbsp; &nbsp; &nbsp; } catch (Exception $e) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; throw new Twig_Error_Syntax(sprintf(&#039;An exception has been thrown during the compilation of a template (&quot;%s&quot;).&#039;, $e-&gt;getMessage()), -1, $source, $e);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }&nbsp; &nbsp; public function setLoader(Twig_LoaderInterface $loader)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;loader = $loader;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the Loader instance.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_LoaderInterface&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getLoader()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;loader;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Sets the default template charset.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $charset The default charset&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function setCharset($charset)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; if (&#039;UTF8&#039; === $charset = strtoupper($charset)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // iconv on Windows requires &quot;UTF-8&quot; instead of &quot;UTF8&quot;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $charset = &#039;UTF-8&#039;;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;charset = $charset;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the default template charset.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return string The default charset&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getCharset()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;charset;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Returns true if the given extension is registered.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $class The extension class name&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return bool Whether the extension is registered or not&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function hasExtension($class)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;hasExtension($class);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Adds a runtime loader.&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function addRuntimeLoader(Twig_RuntimeLoaderInterface $loader)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;runtimeLoaders[] = $loader;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets an extension by class name.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $class The extension class name&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_ExtensionInterface&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getExtension($class)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getExtension($class);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Returns the runtime implementation of a Twig element (filter/function/test).&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $class A runtime class name&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return object The runtime implementation&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @throws Twig_Error_Runtime When the template cannot be found&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getRuntime($class)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; if (isset($this-&gt;runtimes[$class])) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;runtimes[$class];&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; foreach ($this-&gt;runtimeLoaders as $loader) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (null !== $runtime = $loader-&gt;load($class)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;runtimes[$class] = $runtime;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; throw new Twig_Error_Runtime(sprintf(&#039;Unable to load the &quot;%s&quot; runtime.&#039;, $class));&nbsp; &nbsp; }&nbsp; &nbsp; public function addExtension(Twig_ExtensionInterface $extension)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;addExtension($extension);&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;updateOptionsHash();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Registers an array of extensions.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param array $extensions An array of extensions&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function setExtensions(array $extensions)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;setExtensions($extensions);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Returns all registered extensions.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_ExtensionInterface[] An array of extensions (keys are for internal usage only and should not be relied on)&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getExtensions()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getExtensions();&nbsp; &nbsp; }&nbsp; &nbsp; public function addTokenParser(Twig_TokenParserInterface $parser)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;addTokenParser($parser);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the registered Token Parsers.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_TokenParserInterface[]&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getTokenParsers()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getTokenParsers();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets registered tags.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_TokenParserInterface[]&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getTags()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $tags = array();&nbsp; &nbsp; &nbsp; &nbsp; foreach ($this-&gt;getTokenParsers() as $parser) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $tags[$parser-&gt;getTag()] = $parser;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; return $tags;&nbsp; &nbsp; }&nbsp; &nbsp; public function addNodeVisitor(Twig_NodeVisitorInterface $visitor)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;addNodeVisitor($visitor);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the registered Node Visitors.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_NodeVisitorInterface[]&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getNodeVisitors()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getNodeVisitors();&nbsp; &nbsp; }&nbsp; &nbsp; public function addFilter(Twig_Filter $filter)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;addFilter($filter);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Get a filter by name.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * Subclasses may override this method and load filters differently;&nbsp; &nbsp;&nbsp; * so no list of filters is available.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $name The filter name&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_Filter|false A Twig_Filter instance or false if the filter does not exist&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getFilter($name)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getFilter($name);&nbsp; &nbsp; }&nbsp; &nbsp; public function registerUndefinedFilterCallback(callable $callable)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;registerUndefinedFilterCallback($callable);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the registered Filters.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * Be warned that this method cannot return filters defined with registerUndefinedFilterCallback.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_Filter[]&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @see registerUndefinedFilterCallback&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getFilters()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getFilters();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Registers a Test.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param Twig_Test $test A Twig_Test instance&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function addTest(Twig_Test $test)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;addTest($test);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the registered Tests.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_Test[]&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getTests()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getTests();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets a test by name.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $name The test name&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_Test|false A Twig_Test instance or false if the test does not exist&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getTest($name)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getTest($name);&nbsp; &nbsp; }&nbsp; &nbsp; public function addFunction(Twig_Function $function)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;addFunction($function);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Get a function by name.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * Subclasses may override this method and load functions differently;&nbsp; &nbsp;&nbsp; * so no list of functions is available.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $name function name&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_Function|false A Twig_Function instance or false if the function does not exist&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getFunction($name)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getFunction($name);&nbsp; &nbsp; }&nbsp; &nbsp; public function registerUndefinedFunctionCallback(callable $callable)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;registerUndefinedFunctionCallback($callable);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets registered functions.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * Be warned that this method cannot return functions defined with registerUndefinedFunctionCallback.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return Twig_Function[]&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @see registerUndefinedFunctionCallback&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getFunctions()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getFunctions();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Registers a Global.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * New globals can be added before compiling or rendering a template;&nbsp; &nbsp;&nbsp; * but after, you can only update existing globals.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param string $name&nbsp; The global name&nbsp; &nbsp;&nbsp; * @param mixed&nbsp; $value The global value&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function addGlobal($name, $value)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; if ($this-&gt;extensionSet-&gt;isInitialized() &amp;&amp; !array_key_exists($name, $this-&gt;getGlobals())) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; throw new LogicException(sprintf(&#039;Unable to add global &quot;%s&quot; as the runtime or the extensions have already been initialized.&#039;, $name));&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; if (null !== $this-&gt;resolvedGlobals) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;resolvedGlobals[$name] = $value;&nbsp; &nbsp; &nbsp; &nbsp; } else {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;globals[$name] = $value;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the registered Globals.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return array An array of globals&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getGlobals()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; if ($this-&gt;extensionSet-&gt;isInitialized()) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (null === $this-&gt;resolvedGlobals) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;resolvedGlobals = array_merge($this-&gt;extensionSet-&gt;getGlobals(), $this-&gt;globals);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;resolvedGlobals;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; return array_merge($this-&gt;extensionSet-&gt;getGlobals(), $this-&gt;globals);&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Merges a context with the defined globals.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @param array $context An array representing the context&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return array The context merged with the globals&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function mergeGlobals(array $context)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; // we don&#039;t use array_merge as the context being generally&nbsp; &nbsp; &nbsp; &nbsp; // bigger than globals, this code is faster.&nbsp; &nbsp; &nbsp; &nbsp; foreach ($this-&gt;getGlobals() as $key =&gt; $value) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (!array_key_exists($key, $context)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $context[$key] = $value;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; return $context;&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the registered unary Operators.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return array An array of unary operators&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getUnaryOperators()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getUnaryOperators();&nbsp; &nbsp; }&nbsp; &nbsp; /**&nbsp; &nbsp;&nbsp; * Gets the registered binary Operators.&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @return array An array of binary operators&nbsp; &nbsp;&nbsp; *&nbsp; &nbsp;&nbsp; * @internal&nbsp; &nbsp;&nbsp; */&nbsp; &nbsp; public function getBinaryOperators()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return $this-&gt;extensionSet-&gt;getBinaryOperators();&nbsp; &nbsp; }&nbsp; &nbsp; private function updateOptionsHash()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;optionsHash = implode(&#039;:&#039;, array(&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;extensionSet-&gt;getSignature(),&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; PHP_MAJOR_VERSION,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; PHP_MINOR_VERSION,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; self::VERSION,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (int) $this-&gt;debug,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $this-&gt;baseTemplateClass,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (int) $this-&gt;strictVariables,&nbsp; &nbsp; &nbsp; &nbsp; ));&nbsp; &nbsp; }}[/PHP]</blockquote>

[QUOTE="Metty, post: 2687139, member: 571615"] [PHP]<?php /* * This file is part of Twig. * * (c) Fabien Potencier * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ /** * Stores the Twig configuration. * * @author Fabien Potencier <fabien@symfony.com> */ class Twig_Environment { const VERSION = '2.3.2'; const VERSION_ID = 20302; const MAJOR_VERSION = 2; const MINOR_VERSION = 3; const RELEASE_VERSION = 2; const EXTRA_VERSION = ''; private $charset; private $loader; private $debug; private $autoReload; private $cache; private $lexer; private $parser; private $compiler; private $baseTemplateClass; private $globals = array(); private $resolvedGlobals; private $loadedTemplates; private $strictVariables; private $templateClassPrefix = '__TwigTemplate_'; private $originalCache; private $extensionSet; private $runtimeLoaders = array(); private $runtimes = array(); private $optionsHash; /** * Constructor. * * Available options: * * * debug: When set to true, it automatically set "auto_reload" to true as * well (default to false). * * * charset: The charset used by the templates (default to UTF-8). * * * base_template_class: The base template class to use for generated * templates (default to Twig_Template). * * * cache: An absolute path where to store the compiled templates, * a Twig_Cache_Interface implementation, * or false to disable compilation cache (default). * * * auto_reload: Whether to reload the template if the original source changed. * If you don't provide the auto_reload option, it will be * determined automatically based on the debug value. * * * strict_variables: Whether to ignore invalid variables in templates * (default to false). * * * autoescape: Whether to enable auto-escaping (default to html): * * false: disable auto-escaping * * html, js: set the autoescaping to one of the supported strategies * * name: set the autoescaping strategy based on the template name extension * * PHP callback: a PHP callback that returns an escaping strategy based on the template "name" * * * optimizations: A flag that indicates which optimizations to apply * (default to -1 which means that all optimizations are enabled; * set it to 0 to disable). * * @param Twig_LoaderInterface $loader * @param array $options An array of options */ public function __construct(Twig_LoaderInterface $loader, $options = array()) { $this->setLoader($loader); $options = array_merge(array( 'debug' => false, 'charset' => 'UTF-8', 'base_template_class' => 'Twig_Template', 'strict_variables' => false, 'autoescape' => 'html', 'cache' => false, 'auto_reload' => null, 'optimizations' => -1, ), $options); $this->debug = (bool) $options['debug']; $this->setCharset($options['charset']); $this->baseTemplateClass = $options['base_template_class']; $this->autoReload = null === $options['auto_reload'] ? $this->debug : (bool) $options['auto_reload']; $this->strictVariables = (bool) $options['strict_variables']; $this->setCache($options['cache']); $this->extensionSet = new Twig_ExtensionSet(); $this->addExtension(new Twig_Extension_Core()); $this->addExtension(new Twig_Extension_Escaper($options['autoescape'])); $this->addExtension(new Twig_Extension_Optimizer($options['optimizations'])); } /** * Gets the base template class for compiled templates. * * @return string The base template class name */ public function getBaseTemplateClass() { return $this->baseTemplateClass; } /** * Sets the base template class for compiled templates. * * @param string $class The base template class name */ public function setBaseTemplateClass($class) { $this->baseTemplateClass = $class; $this->updateOptionsHash(); } /** * Enables debugging mode. */ public function enableDebug() { $this->debug = true; $this->updateOptionsHash(); } /** * Disables debugging mode. */ public function disableDebug() { $this->debug = false; $this->updateOptionsHash(); } /** * Checks if debug mode is enabled. * * @return bool true if debug mode is enabled, false otherwise */ public function isDebug() { return $this->debug; } /** * Enables the auto_reload option. */ public function enableAutoReload() { $this->autoReload = true; } /** * Disables the auto_reload option. */ public function disableAutoReload() { $this->autoReload = false; } /** * Checks if the auto_reload option is enabled. * * @return bool true if auto_reload is enabled, false otherwise */ public function isAutoReload() { return $this->autoReload; } /** * Enables the strict_variables option. */ public function enableStrictVariables() { $this->strictVariables = true; $this->updateOptionsHash(); } /** * Disables the strict_variables option. */ public function disableStrictVariables() { $this->strictVariables = false; $this->updateOptionsHash(); } /** * Checks if the strict_variables option is enabled. * * @return bool true if strict_variables is enabled, false otherwise */ public function isStrictVariables() { return $this->strictVariables; } /** * Gets the current cache implementation. * * @param bool $original Whether to return the original cache option or the real cache instance * * @return Twig_CacheInterface|string|false A Twig_CacheInterface implementation, * an absolute path to the compiled templates, * or false to disable cache */ public function getCache($original = true) { return $original ? $this->originalCache : $this->cache; } /** * Sets the current cache implementation. * * @param Twig_CacheInterface|string|false $cache A Twig_CacheInterface implementation, * an absolute path to the compiled templates, * or false to disable cache */ public function setCache($cache) { if (is_string($cache)) { $this->originalCache = $cache; $this->cache = new Twig_Cache_Filesystem($cache); } elseif (false === $cache) { $this->originalCache = $cache; $this->cache = new Twig_Cache_Null(); } elseif ($cache instanceof Twig_CacheInterface) { $this->originalCache = $this->cache = $cache; } else { throw new LogicException(sprintf('Cache can only be a string, false, or a Twig_CacheInterface implementation.')); } } /** * Gets the template class associated with the given string. * * The generated template class is based on the following parameters: * * * The cache key for the given template; * * The currently enabled extensions; * * Whether the Twig C extension is available or not; * * PHP version; * * Twig version; * * Options with what environment was created. * * @param string $name The name for which to calculate the template class name * @param int|null $index The index if it is an embedded template * * @return string The template class name */ public function getTemplateClass($name, $index = null) { $key = $this->getLoader()->getCacheKey($name).$this->optionsHash; return $this->templateClassPrefix.hash('sha256', $key).(null === $index ? '' : '_'.$index); } /** * Renders a template. * * @param string $name The template name * @param array $context An array of parameters to pass to the template * * @return string The rendered template * * @throws Twig_Error_Loader When the template cannot be found * @throws Twig_Error_Syntax When an error occurred during compilation * @throws Twig_Error_Runtime When an error occurred during rendering */ public function render($name, array $context = array()) { return $this->loadTemplate($name)->render($context); } /** * Displays a template. * * @param string $name The template name * @param array $context An array of parameters to pass to the template * * @throws Twig_Error_Loader When the template cannot be found * @throws Twig_Error_Syntax When an error occurred during compilation * @throws Twig_Error_Runtime When an error occurred during rendering */ public function display($name, array $context = array()) { $this->loadTemplate($name)->display($context); } /** * Loads a template. * * @param string|Twig_TemplateWrapper|Twig_Template $name The template name * * @return Twig_TemplateWrapper */ public function load($name) { if ($name instanceof Twig_TemplateWrapper) { return $name; } if ($name instanceof Twig_Template) { return new Twig_TemplateWrapper($this, $name); } return new Twig_TemplateWrapper($this, $this->loadTemplate($name)); } /** * Loads a template internal representation. * * This method is for internal use only and should never be called * directly. * * @param string $name The template name * @param int $index The index if it is an embedded template * * @return Twig_Template A template instance representing the given template name * * @throws Twig_Error_Loader When the template cannot be found * @throws Twig_Error_Runtime When a previously generated cache is corrupted * @throws Twig_Error_Syntax When an error occurred during compilation * * @internal */ public function loadTemplate($name, $index = null) { $cls = $mainCls = $this->getTemplateClass($name); if (null !== $index) { $cls .= '_'.$index; } if (isset($this->loadedTemplates[$cls])) { return $this->loadedTemplates[$cls]; } if (!class_exists($cls, false)) { $key = $this->cache->generateKey($name, $mainCls); if (!$this->isAutoReload() || $this->isTemplateFresh($name, $this->cache->getTimestamp($key))) { $this->cache->load($key); } if (!class_exists($cls, false)) { $source = $this->getLoader()->getSourceContext($name); $content = $this->compileSource($source); $this->cache->write($key, $content); $this->cache->load($key); if (!class_exists($mainCls, false)) { /* Last line of defense if either $this->bcWriteCacheFile was used, * $this->cache is implemented as a no-op or we have a race condition * where the cache was cleared between the above calls to write to and load from * the cache. */ eval('?>'.$content); } if (!class_exists($cls, false)) { throw new Twig_Error_Runtime(sprintf('Failed to load Twig template "%s", index "%s": cache is corrupted.', $name, $index), -1, $source); } } } // to be removed in 3.0 $this->extensionSet->initRuntime($this); return $this->loadedTemplates[$cls] = new $cls($this); } /** * Creates a template from source. * * This method should not be used as a generic way to load templates. * * @param string $template The template name * * @return Twig_Template A template instance representing the given template name * * @throws Twig_Error_Loader When the template cannot be found * @throws Twig_Error_Syntax When an error occurred during compilation */ public function createTemplate($template) { $name = sprintf('__string_template__%s', hash('sha256', uniqid(mt_rand(), true), false)); $loader = new Twig_Loader_Chain(array( new Twig_Loader_Array(array($name => $template)), $current = $this->getLoader(), )); $this->setLoader($loader); try { $template = $this->loadTemplate($name); } finally { $this->setLoader($current); } return $template; } /** * Returns true if the template is still fresh. * * Besides checking the loader for freshness information, * this method also checks if the enabled extensions have * not changed. * * @param string $name The template name * @param int $time The last modification time of the cached template * * @return bool true if the template is fresh, false otherwise */ public function isTemplateFresh($name, $time) { return $this->extensionSet->getLastModified() <= $time && $this->getLoader()->isFresh($name, $time); } /** * Tries to load a template consecutively from an array. * * Similar to loadTemplate() but it also accepts Twig_Template instances and an array * of templates where each is tried to be loaded. * * @param string|Twig_Template|array $names A template or an array of templates to try consecutively * * @return Twig_Template * * @throws Twig_Error_Loader When none of the templates can be found * @throws Twig_Error_Syntax When an error occurred during compilation */ public function resolveTemplate($names) { if (!is_array($names)) { $names = array($names); } foreach ($names as $name) { if ($name instanceof Twig_Template) { return $name; } try { return $this->loadTemplate($name); } catch (Twig_Error_Loader $e) { } } if (1 === count($names)) { throw $e; } throw new Twig_Error_Loader(sprintf('Unable to find one of the following templates: "%s".', implode('", "', $names))); } public function setLexer(Twig_Lexer $lexer) { $this->lexer = $lexer; } /** * Tokenizes a source code. * * @return Twig_TokenStream * * @throws Twig_Error_Syntax When the code is syntactically wrong */ public function tokenize(Twig_Source $source) { if (null === $this->lexer) { $this->lexer = new Twig_Lexer($this); } return $this->lexer->tokenize($source); } public function setParser(Twig_Parser $parser) { $this->parser = $parser; } /** * Converts a token stream to a node tree. * * @return Twig_Node_Module * * @throws Twig_Error_Syntax When the token stream is syntactically or semantically wrong */ public function parse(Twig_TokenStream $stream) { if (null === $this->parser) { $this->parser = new Twig_Parser($this); } return $this->parser->parse($stream); } public function setCompiler(Twig_Compiler $compiler) { $this->compiler = $compiler; } /** * Compiles a node and returns the PHP code. * * @return string The compiled PHP source code */ public function compile(Twig_Node $node) { if (null === $this->compiler) { $this->compiler = new Twig_Compiler($this); } return $this->compiler->compile($node)->getSource(); } /** * Compiles a template source code. * * @return string The compiled PHP source code * * @throws Twig_Error_Syntax When there was an error during tokenizing, parsing or compiling */ public function compileSource(Twig_Source $source) { try { return $this->compile($this->parse($this->tokenize($source))); } catch (Twig_Error $e) { $e->setSourceContext($source); throw $e; } catch (Exception $e) { throw new Twig_Error_Syntax(sprintf('An exception has been thrown during the compilation of a template ("%s").', $e->getMessage()), -1, $source, $e); } } public function setLoader(Twig_LoaderInterface $loader) { $this->loader = $loader; } /** * Gets the Loader instance. * * @return Twig_LoaderInterface */ public function getLoader() { return $this->loader; } /** * Sets the default template charset. * * @param string $charset The default charset */ public function setCharset($charset) { if ('UTF8' === $charset = strtoupper($charset)) { // iconv on Windows requires "UTF-8" instead of "UTF8" $charset = 'UTF-8'; } $this->charset = $charset; } /** * Gets the default template charset. * * @return string The default charset */ public function getCharset() { return $this->charset; } /** * Returns true if the given extension is registered. * * @param string $class The extension class name * * @return bool Whether the extension is registered or not */ public function hasExtension($class) { return $this->extensionSet->hasExtension($class); } /** * Adds a runtime loader. */ public function addRuntimeLoader(Twig_RuntimeLoaderInterface $loader) { $this->runtimeLoaders[] = $loader; } /** * Gets an extension by class name. * * @param string $class The extension class name * * @return Twig_ExtensionInterface */ public function getExtension($class) { return $this->extensionSet->getExtension($class); } /** * Returns the runtime implementation of a Twig element (filter/function/test). * * @param string $class A runtime class name * * @return object The runtime implementation * * @throws Twig_Error_Runtime When the template cannot be found */ public function getRuntime($class) { if (isset($this->runtimes[$class])) { return $this->runtimes[$class]; } foreach ($this->runtimeLoaders as $loader) { if (null !== $runtime = $loader->load($class)) { return $this->runtimes[$class] = $runtime; } } throw new Twig_Error_Runtime(sprintf('Unable to load the "%s" runtime.', $class)); } public function addExtension(Twig_ExtensionInterface $extension) { $this->extensionSet->addExtension($extension); $this->updateOptionsHash(); } /** * Registers an array of extensions. * * @param array $extensions An array of extensions */ public function setExtensions(array $extensions) { $this->extensionSet->setExtensions($extensions); } /** * Returns all registered extensions. * * @return Twig_ExtensionInterface[] An array of extensions (keys are for internal usage only and should not be relied on) */ public function getExtensions() { return $this->extensionSet->getExtensions(); } public function addTokenParser(Twig_TokenParserInterface $parser) { $this->extensionSet->addTokenParser($parser); } /** * Gets the registered Token Parsers. * * @return Twig_TokenParserInterface[] * * @internal */ public function getTokenParsers() { return $this->extensionSet->getTokenParsers(); } /** * Gets registered tags. * * @return Twig_TokenParserInterface[] * * @internal */ public function getTags() { $tags = array(); foreach ($this->getTokenParsers() as $parser) { $tags[$parser->getTag()] = $parser; } return $tags; } public function addNodeVisitor(Twig_NodeVisitorInterface $visitor) { $this->extensionSet->addNodeVisitor($visitor); } /** * Gets the registered Node Visitors. * * @return Twig_NodeVisitorInterface[] * * @internal */ public function getNodeVisitors() { return $this->extensionSet->getNodeVisitors(); } public function addFilter(Twig_Filter $filter) { $this->extensionSet->addFilter($filter); } /** * Get a filter by name. * * Subclasses may override this method and load filters differently; * so no list of filters is available. * * @param string $name The filter name * * @return Twig_Filter|false A Twig_Filter instance or false if the filter does not exist * * @internal */ public function getFilter($name) { return $this->extensionSet->getFilter($name); } public function registerUndefinedFilterCallback(callable $callable) { $this->extensionSet->registerUndefinedFilterCallback($callable); } /** * Gets the registered Filters. * * Be warned that this method cannot return filters defined with registerUndefinedFilterCallback. * * @return Twig_Filter[] * * @see registerUndefinedFilterCallback * * @internal */ public function getFilters() { return $this->extensionSet->getFilters(); } /** * Registers a Test. * * @param Twig_Test $test A Twig_Test instance */ public function addTest(Twig_Test $test) { $this->extensionSet->addTest($test); } /** * Gets the registered Tests. * * @return Twig_Test[] * * @internal */ public function getTests() { return $this->extensionSet->getTests(); } /** * Gets a test by name. * * @param string $name The test name * * @return Twig_Test|false A Twig_Test instance or false if the test does not exist * * @internal */ public function getTest($name) { return $this->extensionSet->getTest($name); } public function addFunction(Twig_Function $function) { $this->extensionSet->addFunction($function); } /** * Get a function by name. * * Subclasses may override this method and load functions differently; * so no list of functions is available. * * @param string $name function name * * @return Twig_Function|false A Twig_Function instance or false if the function does not exist * * @internal */ public function getFunction($name) { return $this->extensionSet->getFunction($name); } public function registerUndefinedFunctionCallback(callable $callable) { $this->extensionSet->registerUndefinedFunctionCallback($callable); } /** * Gets registered functions. * * Be warned that this method cannot return functions defined with registerUndefinedFunctionCallback. * * @return Twig_Function[] * * @see registerUndefinedFunctionCallback * * @internal */ public function getFunctions() { return $this->extensionSet->getFunctions(); } /** * Registers a Global. * * New globals can be added before compiling or rendering a template; * but after, you can only update existing globals. * * @param string $name The global name * @param mixed $value The global value */ public function addGlobal($name, $value) { if ($this->extensionSet->isInitialized() && !array_key_exists($name, $this->getGlobals())) { throw new LogicException(sprintf('Unable to add global "%s" as the runtime or the extensions have already been initialized.', $name)); } if (null !== $this->resolvedGlobals) { $this->resolvedGlobals[$name] = $value; } else { $this->globals[$name] = $value; } } /** * Gets the registered Globals. * * @return array An array of globals * * @internal */ public function getGlobals() { if ($this->extensionSet->isInitialized()) { if (null === $this->resolvedGlobals) { $this->resolvedGlobals = array_merge($this->extensionSet->getGlobals(), $this->globals); } return $this->resolvedGlobals; } return array_merge($this->extensionSet->getGlobals(), $this->globals); } /** * Merges a context with the defined globals. * * @param array $context An array representing the context * * @return array The context merged with the globals */ public function mergeGlobals(array $context) { // we don't use array_merge as the context being generally // bigger than globals, this code is faster. foreach ($this->getGlobals() as $key => $value) { if (!array_key_exists($key, $context)) { $context[$key] = $value; } } return $context; } /** * Gets the registered unary Operators. * * @return array An array of unary operators * * @internal */ public function getUnaryOperators() { return $this->extensionSet->getUnaryOperators(); } /** * Gets the registered binary Operators. * * @return array An array of binary operators * * @internal */ public function getBinaryOperators() { return $this->extensionSet->getBinaryOperators(); } private function updateOptionsHash() { $this->optionsHash = implode(':', array( $this->extensionSet->getSignature(), PHP_MAJOR_VERSION, PHP_MINOR_VERSION, self::VERSION, (int) $this->debug, $this->baseTemplateClass, (int) $this->strictVariables, )); } } [/PHP] [/QUOTE]

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Wenn ★ = 12, ◇ = 4 und die Hälfte von ★ zu ◇ addiert wird, was ist das Ergebnis?