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load('hello'); * $goodbye = $loader->load('goodbye'); * * __halt_compiler(); * * @@ hello * Hello, {{ planet }}! * * @@ goodbye * Goodbye, cruel {{ planet }} * * Templates are deliniated by lines containing only `@@ name`. * * The InlineLoader is well-suited to micro-frameworks such as Silex: * * $app->register(new MustacheServiceProvider, array( * 'mustache.loader' => new Mustache_Loader_InlineLoader(__FILE__, __COMPILER_HALT_OFFSET__) * )); * * $app->get('/{name}', function ($name) use ($app) { * return $app['mustache']->render('hello', compact('name')); * }) * ->value('name', 'world'); * * // ... * * __halt_compiler(); * * @@ hello * Hello, {{ name }}! */ class Mustache_Loader_InlineLoader implements Mustache_Loader { protected $fileName; protected $offset; protected $templates; /** * The InlineLoader requires a filename and offset to process templates. * * The magic constants `__FILE__` and `__COMPILER_HALT_OFFSET__` are usually * perfectly suited to the job: * * $loader = new Mustache_Loader_InlineLoader(__FILE__, __COMPILER_HALT_OFFSET__); * * Note that this only works if the loader is instantiated inside the same * file as the inline templates. If the templates are located in another * file, it would be necessary to manually specify the filename and offset. * * @param string $fileName The file to parse for inline templates * @param int $offset A string offset for the start of the templates. * This usually coincides with the `__halt_compiler` * call, and the `__COMPILER_HALT_OFFSET__` */ public function __construct($fileName, $offset) { if (!is_file($fileName)) { throw new Mustache_Exception_InvalidArgumentException('InlineLoader expects a valid filename.'); } if (!is_int($offset) || $offset < 0) { throw new Mustache_Exception_InvalidArgumentException('InlineLoader expects a valid file offset.'); } $this->fileName = $fileName; $this->offset = $offset; } /** * Load a Template by name. * * @throws Mustache_Exception_UnknownTemplateException If a template file is not found * * @param string $name * * @return string Mustache Template source */ public function load($name) { $this->loadTemplates(); if (!array_key_exists($name, $this->templates)) { throw new Mustache_Exception_UnknownTemplateException($name); } return $this->templates[$name]; } /** * Parse and load templates from the end of a source file. */ protected function loadTemplates() { if ($this->templates === null) { $this->templates = array(); $data = file_get_contents($this->fileName, false, null, $this->offset); foreach (preg_split("/^@@(?= [\w\d\.]+$)/m", $data, -1) as $chunk) { if (trim($chunk)) { list($name, $content) = explode("\n", $chunk, 2); $this->templates[trim($name)] = trim($content); } } } } }