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-rw-r--r--Mustache/Engine.php1423
1 files changed, 832 insertions, 591 deletions
diff --git a/Mustache/Engine.php b/Mustache/Engine.php
index e1f6b8cf..0ac2a738 100644
--- a/Mustache/Engine.php
+++ b/Mustache/Engine.php
@@ -1,591 +1,832 @@
-<?php
-
-/*
- * This file is part of Mustache.php.
- *
- * (c) 2012 Justin Hileman
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-/**
- * A Mustache implementation in PHP.
- *
- * {@link http://defunkt.github.com/mustache}
- *
- * Mustache is a framework-agnostic logic-less templating language. It enforces separation of view
- * logic from template files. In fact, it is not even possible to embed logic in the template.
- *
- * This is very, very rad.
- *
- * @author Justin Hileman {@link http://justinhileman.com}
- */
-class Mustache_Engine
-{
- const VERSION = '2.0.2';
- const SPEC_VERSION = '1.1.2';
-
- // Template cache
- private $templates = array();
-
- // Environment
- private $templateClassPrefix = '__Mustache_';
- private $cache = null;
- private $loader;
- private $partialsLoader;
- private $helpers;
- private $escape;
- private $charset = 'UTF-8';
-
- /**
- * Mustache class constructor.
- *
- * Passing an $options array allows overriding certain Mustache options during instantiation:
- *
- * $options = array(
- * // The class prefix for compiled templates. Defaults to '__Mustache_'
- * 'template_class_prefix' => '__MyTemplates_',
- *
- * // A cache directory for compiled templates. Mustache will not cache templates unless this is set
- * 'cache' => dirname(__FILE__).'/tmp/cache/mustache',
- *
- * // A Mustache template loader instance. Uses a StringLoader if not specified
- * 'loader' => new Mustache_Loader_FilesystemLoader(dirname(__FILE__).'/views'),
- *
- * // A Mustache loader instance for partials.
- * 'partials_loader' => new Mustache_Loader_FilesystemLoader(dirname(__FILE__).'/views/partials'),
- *
- * // An array of Mustache partials. Useful for quick-and-dirty string template loading, but not as
- * // efficient or lazy as a Filesystem (or database) loader.
- * 'partials' => array('foo' => file_get_contents(dirname(__FILE__).'/views/partials/foo.mustache')),
- *
- * // An array of 'helpers'. Helpers can be global variables or objects, closures (e.g. for higher order
- * // sections), or any other valid Mustache context value. They will be prepended to the context stack,
- * // so they will be available in any template loaded by this Mustache instance.
- * 'helpers' => array('i18n' => function($text) {
- * // do something translatey here...
- * }),
- *
- * // An 'escape' callback, responsible for escaping double-mustache variables.
- * 'escape' => function($value) {
- * return htmlspecialchars($buffer, ENT_COMPAT, 'UTF-8');
- * },
- *
- * // character set for `htmlspecialchars`. Defaults to 'UTF-8'
- * 'charset' => 'ISO-8859-1',
- * );
- *
- * @param array $options (default: array())
- */
- public function __construct(array $options = array())
- {
- if (isset($options['template_class_prefix'])) {
- $this->templateClassPrefix = $options['template_class_prefix'];
- }
-
- if (isset($options['cache'])) {
- $this->cache = $options['cache'];
- }
-
- if (isset($options['loader'])) {
- $this->setLoader($options['loader']);
- }
-
- if (isset($options['partials_loader'])) {
- $this->setPartialsLoader($options['partials_loader']);
- }
-
- if (isset($options['partials'])) {
- $this->setPartials($options['partials']);
- }
-
- if (isset($options['helpers'])) {
- $this->setHelpers($options['helpers']);
- }
-
- if (isset($options['escape'])) {
- if (!is_callable($options['escape'])) {
- throw new InvalidArgumentException('Mustache Constructor "escape" option must be callable');
- }
-
- $this->escape = $options['escape'];
- }
-
- if (isset($options['charset'])) {
- $this->charset = $options['charset'];
- }
- }
-
- /**
- * Shortcut 'render' invocation.
- *
- * Equivalent to calling `$mustache->loadTemplate($template)->render($data);`
- *
- * @see Mustache_Engine::loadTemplate
- * @see Mustache_Template::render
- *
- * @param string $template
- * @param mixed $data
- *
- * @return string Rendered template
- */
- public function render($template, $data)
- {
- return $this->loadTemplate($template)->render($data);
- }
-
- /**
- * Get the current Mustache escape callback.
- *
- * @return mixed Callable or null
- */
- public function getEscape()
- {
- return $this->escape;
- }
-
- /**
- * Get the current Mustache character set.
- *
- * @return string
- */
- public function getCharset()
- {
- return $this->charset;
- }
-
- /**
- * Set the Mustache template Loader instance.
- *
- * @param Mustache_Loader $loader
- */
- public function setLoader(Mustache_Loader $loader)
- {
- $this->loader = $loader;
- }
-
- /**
- * Get the current Mustache template Loader instance.
- *
- * If no Loader instance has been explicitly specified, this method will instantiate and return
- * a StringLoader instance.
- *
- * @return Mustache_Loader
- */
- public function getLoader()
- {
- if (!isset($this->loader)) {
- $this->loader = new Mustache_Loader_StringLoader;
- }
-
- return $this->loader;
- }
-
- /**
- * Set the Mustache partials Loader instance.
- *
- * @param Mustache_Loader $partialsLoader
- */
- public function setPartialsLoader(Mustache_Loader $partialsLoader)
- {
- $this->partialsLoader = $partialsLoader;
- }
-
- /**
- * Get the current Mustache partials Loader instance.
- *
- * If no Loader instance has been explicitly specified, this method will instantiate and return
- * an ArrayLoader instance.
- *
- * @return Mustache_Loader
- */
- public function getPartialsLoader()
- {
- if (!isset($this->partialsLoader)) {
- $this->partialsLoader = new Mustache_Loader_ArrayLoader;
- }
-
- return $this->partialsLoader;
- }
-
- /**
- * Set partials for the current partials Loader instance.
- *
- * @throws RuntimeException If the current Loader instance is immutable
- *
- * @param array $partials (default: array())
- */
- public function setPartials(array $partials = array())
- {
- $loader = $this->getPartialsLoader();
- if (!$loader instanceof Mustache_Loader_MutableLoader) {
- throw new RuntimeException('Unable to set partials on an immutable Mustache Loader instance');
- }
-
- $loader->setTemplates($partials);
- }
-
- /**
- * Set an array of Mustache helpers.
- *
- * An array of 'helpers'. Helpers can be global variables or objects, closures (e.g. for higher order sections), or
- * any other valid Mustache context value. They will be prepended to the context stack, so they will be available in
- * any template loaded by this Mustache instance.
- *
- * @throws InvalidArgumentException if $helpers is not an array or Traversable
- *
- * @param array|Traversable $helpers
- */
- public function setHelpers($helpers)
- {
- if (!is_array($helpers) && !$helpers instanceof Traversable) {
- throw new InvalidArgumentException('setHelpers expects an array of helpers');
- }
-
- $this->getHelpers()->clear();
-
- foreach ($helpers as $name => $helper) {
- $this->addHelper($name, $helper);
- }
- }
-
- /**
- * Get the current set of Mustache helpers.
- *
- * @see Mustache_Engine::setHelpers
- *
- * @return Mustache_HelperCollection
- */
- public function getHelpers()
- {
- if (!isset($this->helpers)) {
- $this->helpers = new Mustache_HelperCollection;
- }
-
- return $this->helpers;
- }
-
- /**
- * Add a new Mustache helper.
- *
- * @see Mustache_Engine::setHelpers
- *
- * @param string $name
- * @param mixed $helper
- */
- public function addHelper($name, $helper)
- {
- $this->getHelpers()->add($name, $helper);
- }
-
- /**
- * Get a Mustache helper by name.
- *
- * @see Mustache_Engine::setHelpers
- *
- * @param string $name
- *
- * @return mixed Helper
- */
- public function getHelper($name)
- {
- return $this->getHelpers()->get($name);
- }
-
- /**
- * Check whether this Mustache instance has a helper.
- *
- * @see Mustache_Engine::setHelpers
- *
- * @param string $name
- *
- * @return boolean True if the helper is present
- */
- public function hasHelper($name)
- {
- return $this->getHelpers()->has($name);
- }
-
- /**
- * Remove a helper by name.
- *
- * @see Mustache_Engine::setHelpers
- *
- * @param string $name
- */
- public function removeHelper($name)
- {
- $this->getHelpers()->remove($name);
- }
-
- /**
- * Set the Mustache Tokenizer instance.
- *
- * @param Mustache_Tokenizer $tokenizer
- */
- public function setTokenizer(Mustache_Tokenizer $tokenizer)
- {
- $this->tokenizer = $tokenizer;
- }
-
- /**
- * Get the current Mustache Tokenizer instance.
- *
- * If no Tokenizer instance has been explicitly specified, this method will instantiate and return a new one.
- *
- * @return Mustache_Tokenizer
- */
- public function getTokenizer()
- {
- if (!isset($this->tokenizer)) {
- $this->tokenizer = new Mustache_Tokenizer;
- }
-
- return $this->tokenizer;
- }
-
- /**
- * Set the Mustache Parser instance.
- *
- * @param Mustache_Parser $parser
- */
- public function setParser(Mustache_Parser $parser)
- {
- $this->parser = $parser;
- }
-
- /**
- * Get the current Mustache Parser instance.
- *
- * If no Parser instance has been explicitly specified, this method will instantiate and return a new one.
- *
- * @return Mustache_Parser
- */
- public function getParser()
- {
- if (!isset($this->parser)) {
- $this->parser = new Mustache_Parser;
- }
-
- return $this->parser;
- }
-
- /**
- * Set the Mustache Compiler instance.
- *
- * @param Mustache_Compiler $compiler
- */
- public function setCompiler(Mustache_Compiler $compiler)
- {
- $this->compiler = $compiler;
- }
-
- /**
- * Get the current Mustache Compiler instance.
- *
- * If no Compiler instance has been explicitly specified, this method will instantiate and return a new one.
- *
- * @return Mustache_Compiler
- */
- public function getCompiler()
- {
- if (!isset($this->compiler)) {
- $this->compiler = new Mustache_Compiler;
- }
-
- return $this->compiler;
- }
-
- /**
- * Helper method to generate a Mustache template class.
- *
- * @param string $source
- *
- * @return string Mustache Template class name
- */
- public function getTemplateClassName($source)
- {
- return $this->templateClassPrefix . md5(sprintf(
- 'version:%s,escape:%s,charset:%s,source:%s',
- self::VERSION,
- isset($this->escape) ? 'custom' : 'default',
- $this->charset,
- $source
- ));
- }
-
- /**
- * Load a Mustache Template by name.
- *
- * @param string $name
- *
- * @return Mustache_Template
- */
- public function loadTemplate($name)
- {
- return $this->loadSource($this->getLoader()->load($name));
- }
-
- /**
- * Load a Mustache partial Template by name.
- *
- * This is a helper method used internally by Template instances for loading partial templates. You can most likely
- * ignore it completely.
- *
- * @param string $name
- *
- * @return Mustache_Template
- */
- public function loadPartial($name)
- {
- try {
- return $this->loadSource($this->getPartialsLoader()->load($name));
- } catch (InvalidArgumentException $e) {
- // If the named partial cannot be found, return null.
- }
- return null;
- }
-
- /**
- * Load a Mustache lambda Template by source.
- *
- * This is a helper method used by Template instances to generate subtemplates for Lambda sections. You can most
- * likely ignore it completely.
- *
- * @param string $source
- * @param string $delims (default: null)
- *
- * @return Mustache_Template
- */
- public function loadLambda($source, $delims = null)
- {
- if ($delims !== null) {
- $source = $delims . "\n" . $source;
- }
-
- return $this->loadSource($source);
- }
-
- /**
- * Instantiate and return a Mustache Template instance by source.
- *
- * @see Mustache_Engine::loadTemplate
- * @see Mustache_Engine::loadPartial
- * @see Mustache_Engine::loadLambda
- *
- * @param string $source
- *
- * @return Mustache_Template
- */
- private function loadSource($source)
- {
- $className = $this->getTemplateClassName($source);
-
- if (!isset($this->templates[$className])) {
- if (!class_exists($className, false)) {
- if ($fileName = $this->getCacheFilename($source)) {
- if (!is_file($fileName)) {
- $this->writeCacheFile($fileName, $this->compile($source));
- }
-
- require_once $fileName;
- } else {
- eval('?>'.$this->compile($source));
- }
- }
-
- $this->templates[$className] = new $className($this);
- }
-
- return $this->templates[$className];
- }
-
- /**
- * Helper method to tokenize a Mustache template.
- *
- * @see Mustache_Tokenizer::scan
- *
- * @param string $source
- *
- * @return array Tokens
- */
- private function tokenize($source)
- {
- return $this->getTokenizer()->scan($source);
- }
-
- /**
- * Helper method to parse a Mustache template.
- *
- * @see Mustache_Parser::parse
- *
- * @param string $source
- *
- * @return array Token tree
- */
- private function parse($source)
- {
- return $this->getParser()->parse($this->tokenize($source));
- }
-
- /**
- * Helper method to compile a Mustache template.
- *
- * @see Mustache_Compiler::compile
- *
- * @param string $source
- *
- * @return string generated Mustache template class code
- */
- private function compile($source)
- {
- $tree = $this->parse($source);
- $name = $this->getTemplateClassName($source);
-
- return $this->getCompiler()->compile($source, $tree, $name, isset($this->escape), $this->charset);
- }
-
- /**
- * Helper method to generate a Mustache Template class cache filename.
- *
- * @param string $source
- *
- * @return string Mustache Template class cache filename
- */
- private function getCacheFilename($source)
- {
- if ($this->cache) {
- return sprintf('%s/%s.php', $this->cache, $this->getTemplateClassName($source));
- }
- return false;
- }
-
- /**
- * Helper method to dump a generated Mustache Template subclass to the file cache.
- *
- * @throws RuntimeException if unable to write to $fileName.
- *
- * @param string $fileName
- * @param string $source
- *
- * @codeCoverageIgnore
- */
- private function writeCacheFile($fileName, $source)
- {
- if (!is_dir(dirname($fileName))) {
- mkdir(dirname($fileName), 0777, true);
- }
-
- $tempFile = tempnam(dirname($fileName), basename($fileName));
- if (false !== @file_put_contents($tempFile, $source)) {
- if (@rename($tempFile, $fileName)) {
- chmod($fileName, 0644);
-
- return;
- }
- }
-
- throw new RuntimeException(sprintf('Failed to write cache file "%s".', $fileName));
- }
-}
+<?php
+
+/*
+ * This file is part of Mustache.php.
+ *
+ * (c) 2010-2017 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * A Mustache implementation in PHP.
+ *
+ * {@link http://defunkt.github.com/mustache}
+ *
+ * Mustache is a framework-agnostic logic-less templating language. It enforces separation of view
+ * logic from template files. In fact, it is not even possible to embed logic in the template.
+ *
+ * This is very, very rad.
+ *
+ * @author Justin Hileman {@link http://justinhileman.com}
+ */
+class Mustache_Engine
+{
+ const VERSION = '2.14.2';
+ const SPEC_VERSION = '1.3.0';
+
+ const PRAGMA_FILTERS = 'FILTERS';
+ const PRAGMA_BLOCKS = 'BLOCKS';
+ const PRAGMA_ANCHORED_DOT = 'ANCHORED-DOT';
+ const PRAGMA_DYNAMIC_NAMES = 'DYNAMIC-NAMES';
+
+ // Known pragmas
+ private static $knownPragmas = array(
+ self::PRAGMA_FILTERS => true,
+ self::PRAGMA_BLOCKS => true,
+ self::PRAGMA_ANCHORED_DOT => true,
+ self::PRAGMA_DYNAMIC_NAMES => true,
+ );
+
+ // Template cache
+ private $templates = array();
+
+ // Environment
+ private $templateClassPrefix = '__Mustache_';
+ private $cache;
+ private $lambdaCache;
+ private $cacheLambdaTemplates = false;
+ private $loader;
+ private $partialsLoader;
+ private $helpers;
+ private $escape;
+ private $entityFlags = ENT_COMPAT;
+ private $charset = 'UTF-8';
+ private $logger;
+ private $strictCallables = false;
+ private $pragmas = array();
+ private $delimiters;
+
+ // Services
+ private $tokenizer;
+ private $parser;
+ private $compiler;
+
+ /**
+ * Mustache class constructor.
+ *
+ * Passing an $options array allows overriding certain Mustache options during instantiation:
+ *
+ * $options = array(
+ * // The class prefix for compiled templates. Defaults to '__Mustache_'.
+ * 'template_class_prefix' => '__MyTemplates_',
+ *
+ * // A Mustache cache instance or a cache directory string for compiled templates.
+ * // Mustache will not cache templates unless this is set.
+ * 'cache' => dirname(__FILE__).'/tmp/cache/mustache',
+ *
+ * // Override default permissions for cache files. Defaults to using the system-defined umask. It is
+ * // *strongly* recommended that you configure your umask properly rather than overriding permissions here.
+ * 'cache_file_mode' => 0666,
+ *
+ * // Optionally, enable caching for lambda section templates. This is generally not recommended, as lambda
+ * // sections are often too dynamic to benefit from caching.
+ * 'cache_lambda_templates' => true,
+ *
+ * // Customize the tag delimiters used by this engine instance. Note that overriding here changes the
+ * // delimiters used to parse all templates and partials loaded by this instance. To override just for a
+ * // single template, use an inline "change delimiters" tag at the start of the template file:
+ * //
+ * // {{=<% %>=}}
+ * //
+ * 'delimiters' => '<% %>',
+ *
+ * // A Mustache template loader instance. Uses a StringLoader if not specified.
+ * 'loader' => new Mustache_Loader_FilesystemLoader(dirname(__FILE__).'/views'),
+ *
+ * // A Mustache loader instance for partials.
+ * 'partials_loader' => new Mustache_Loader_FilesystemLoader(dirname(__FILE__).'/views/partials'),
+ *
+ * // An array of Mustache partials. Useful for quick-and-dirty string template loading, but not as
+ * // efficient or lazy as a Filesystem (or database) loader.
+ * 'partials' => array('foo' => file_get_contents(dirname(__FILE__).'/views/partials/foo.mustache')),
+ *
+ * // An array of 'helpers'. Helpers can be global variables or objects, closures (e.g. for higher order
+ * // sections), or any other valid Mustache context value. They will be prepended to the context stack,
+ * // so they will be available in any template loaded by this Mustache instance.
+ * 'helpers' => array('i18n' => function ($text) {
+ * // do something translatey here...
+ * }),
+ *
+ * // An 'escape' callback, responsible for escaping double-mustache variables.
+ * 'escape' => function ($value) {
+ * return htmlspecialchars($buffer, ENT_COMPAT, 'UTF-8');
+ * },
+ *
+ * // Type argument for `htmlspecialchars`. Defaults to ENT_COMPAT. You may prefer ENT_QUOTES.
+ * 'entity_flags' => ENT_QUOTES,
+ *
+ * // Character set for `htmlspecialchars`. Defaults to 'UTF-8'. Use 'UTF-8'.
+ * 'charset' => 'ISO-8859-1',
+ *
+ * // A Mustache Logger instance. No logging will occur unless this is set. Using a PSR-3 compatible
+ * // logging library -- such as Monolog -- is highly recommended. A simple stream logger implementation is
+ * // available as well:
+ * 'logger' => new Mustache_Logger_StreamLogger('php://stderr'),
+ *
+ * // Only treat Closure instances and invokable classes as callable. If true, values like
+ * // `array('ClassName', 'methodName')` and `array($classInstance, 'methodName')`, which are traditionally
+ * // "callable" in PHP, are not called to resolve variables for interpolation or section contexts. This
+ * // helps protect against arbitrary code execution when user input is passed directly into the template.
+ * // This currently defaults to false, but will default to true in v3.0.
+ * 'strict_callables' => true,
+ *
+ * // Enable pragmas across all templates, regardless of the presence of pragma tags in the individual
+ * // templates.
+ * 'pragmas' => [Mustache_Engine::PRAGMA_FILTERS],
+ * );
+ *
+ * @throws Mustache_Exception_InvalidArgumentException If `escape` option is not callable
+ *
+ * @param array $options (default: array())
+ */
+ public function __construct(array $options = array())
+ {
+ if (isset($options['template_class_prefix'])) {
+ if ((string) $options['template_class_prefix'] === '') {
+ throw new Mustache_Exception_InvalidArgumentException('Mustache Constructor "template_class_prefix" must not be empty');
+ }
+
+ $this->templateClassPrefix = $options['template_class_prefix'];
+ }
+
+ if (isset($options['cache'])) {
+ $cache = $options['cache'];
+
+ if (is_string($cache)) {
+ $mode = isset($options['cache_file_mode']) ? $options['cache_file_mode'] : null;
+ $cache = new Mustache_Cache_FilesystemCache($cache, $mode);
+ }
+
+ $this->setCache($cache);
+ }
+
+ if (isset($options['cache_lambda_templates'])) {
+ $this->cacheLambdaTemplates = (bool) $options['cache_lambda_templates'];
+ }
+
+ if (isset($options['loader'])) {
+ $this->setLoader($options['loader']);
+ }
+
+ if (isset($options['partials_loader'])) {
+ $this->setPartialsLoader($options['partials_loader']);
+ }
+
+ if (isset($options['partials'])) {
+ $this->setPartials($options['partials']);
+ }
+
+ if (isset($options['helpers'])) {
+ $this->setHelpers($options['helpers']);
+ }
+
+ if (isset($options['escape'])) {
+ if (!is_callable($options['escape'])) {
+ throw new Mustache_Exception_InvalidArgumentException('Mustache Constructor "escape" option must be callable');
+ }
+
+ $this->escape = $options['escape'];
+ }
+
+ if (isset($options['entity_flags'])) {
+ $this->entityFlags = $options['entity_flags'];
+ }
+
+ if (isset($options['charset'])) {
+ $this->charset = $options['charset'];
+ }
+
+ if (isset($options['logger'])) {
+ $this->setLogger($options['logger']);
+ }
+
+ if (isset($options['strict_callables'])) {
+ $this->strictCallables = $options['strict_callables'];
+ }
+
+ if (isset($options['delimiters'])) {
+ $this->delimiters = $options['delimiters'];
+ }
+
+ if (isset($options['pragmas'])) {
+ foreach ($options['pragmas'] as $pragma) {
+ if (!isset(self::$knownPragmas[$pragma])) {
+ throw new Mustache_Exception_InvalidArgumentException(sprintf('Unknown pragma: "%s".', $pragma));
+ }
+ $this->pragmas[$pragma] = true;
+ }
+ }
+ }
+
+ /**
+ * Shortcut 'render' invocation.
+ *
+ * Equivalent to calling `$mustache->loadTemplate($template)->render($context);`
+ *
+ * @see Mustache_Engine::loadTemplate
+ * @see Mustache_Template::render
+ *
+ * @param string $template
+ * @param mixed $context (default: array())
+ *
+ * @return string Rendered template
+ */
+ public function render($template, $context = array())
+ {
+ return $this->loadTemplate($template)->render($context);
+ }
+
+ /**
+ * Get the current Mustache escape callback.
+ *
+ * @return callable|null
+ */
+ public function getEscape()
+ {
+ return $this->escape;
+ }
+
+ /**
+ * Get the current Mustache entitity type to escape.
+ *
+ * @return int
+ */
+ public function getEntityFlags()
+ {
+ return $this->entityFlags;
+ }
+
+ /**
+ * Get the current Mustache character set.
+ *
+ * @return string
+ */
+ public function getCharset()
+ {
+ return $this->charset;
+ }
+
+ /**
+ * Get the current globally enabled pragmas.
+ *
+ * @return array
+ */
+ public function getPragmas()
+ {
+ return array_keys($this->pragmas);
+ }
+
+ /**
+ * Set the Mustache template Loader instance.
+ *
+ * @param Mustache_Loader $loader
+ */
+ public function setLoader(Mustache_Loader $loader)
+ {
+ $this->loader = $loader;
+ }
+
+ /**
+ * Get the current Mustache template Loader instance.
+ *
+ * If no Loader instance has been explicitly specified, this method will instantiate and return
+ * a StringLoader instance.
+ *
+ * @return Mustache_Loader
+ */
+ public function getLoader()
+ {
+ if (!isset($this->loader)) {
+ $this->loader = new Mustache_Loader_StringLoader();
+ }
+
+ return $this->loader;
+ }
+
+ /**
+ * Set the Mustache partials Loader instance.
+ *
+ * @param Mustache_Loader $partialsLoader
+ */
+ public function setPartialsLoader(Mustache_Loader $partialsLoader)
+ {
+ $this->partialsLoader = $partialsLoader;
+ }
+
+ /**
+ * Get the current Mustache partials Loader instance.
+ *
+ * If no Loader instance has been explicitly specified, this method will instantiate and return
+ * an ArrayLoader instance.
+ *
+ * @return Mustache_Loader
+ */
+ public function getPartialsLoader()
+ {
+ if (!isset($this->partialsLoader)) {
+ $this->partialsLoader = new Mustache_Loader_ArrayLoader();
+ }
+
+ return $this->partialsLoader;
+ }
+
+ /**
+ * Set partials for the current partials Loader instance.
+ *
+ * @throws Mustache_Exception_RuntimeException If the current Loader instance is immutable
+ *
+ * @param array $partials (default: array())
+ */
+ public function setPartials(array $partials = array())
+ {
+ if (!isset($this->partialsLoader)) {
+ $this->partialsLoader = new Mustache_Loader_ArrayLoader();
+ }
+
+ if (!$this->partialsLoader instanceof Mustache_Loader_MutableLoader) {
+ throw new Mustache_Exception_RuntimeException('Unable to set partials on an immutable Mustache Loader instance');
+ }
+
+ $this->partialsLoader->setTemplates($partials);
+ }
+
+ /**
+ * Set an array of Mustache helpers.
+ *
+ * An array of 'helpers'. Helpers can be global variables or objects, closures (e.g. for higher order sections), or
+ * any other valid Mustache context value. They will be prepended to the context stack, so they will be available in
+ * any template loaded by this Mustache instance.
+ *
+ * @throws Mustache_Exception_InvalidArgumentException if $helpers is not an array or Traversable
+ *
+ * @param array|Traversable $helpers
+ */
+ public function setHelpers($helpers)
+ {
+ if (!is_array($helpers) && !$helpers instanceof Traversable) {
+ throw new Mustache_Exception_InvalidArgumentException('setHelpers expects an array of helpers');
+ }
+
+ $this->getHelpers()->clear();
+
+ foreach ($helpers as $name => $helper) {
+ $this->addHelper($name, $helper);
+ }
+ }
+
+ /**
+ * Get the current set of Mustache helpers.
+ *
+ * @see Mustache_Engine::setHelpers
+ *
+ * @return Mustache_HelperCollection
+ */
+ public function getHelpers()
+ {
+ if (!isset($this->helpers)) {
+ $this->helpers = new Mustache_HelperCollection();
+ }
+
+ return $this->helpers;
+ }
+
+ /**
+ * Add a new Mustache helper.
+ *
+ * @see Mustache_Engine::setHelpers
+ *
+ * @param string $name
+ * @param mixed $helper
+ */
+ public function addHelper($name, $helper)
+ {
+ $this->getHelpers()->add($name, $helper);
+ }
+
+ /**
+ * Get a Mustache helper by name.
+ *
+ * @see Mustache_Engine::setHelpers
+ *
+ * @param string $name
+ *
+ * @return mixed Helper
+ */
+ public function getHelper($name)
+ {
+ return $this->getHelpers()->get($name);
+ }
+
+ /**
+ * Check whether this Mustache instance has a helper.
+ *
+ * @see Mustache_Engine::setHelpers
+ *
+ * @param string $name
+ *
+ * @return bool True if the helper is present
+ */
+ public function hasHelper($name)
+ {
+ return $this->getHelpers()->has($name);
+ }
+
+ /**
+ * Remove a helper by name.
+ *
+ * @see Mustache_Engine::setHelpers
+ *
+ * @param string $name
+ */
+ public function removeHelper($name)
+ {
+ $this->getHelpers()->remove($name);
+ }
+
+ /**
+ * Set the Mustache Logger instance.
+ *
+ * @throws Mustache_Exception_InvalidArgumentException If logger is not an instance of Mustache_Logger or Psr\Log\LoggerInterface
+ *
+ * @param Mustache_Logger|Psr\Log\LoggerInterface $logger
+ */
+ public function setLogger($logger = null)
+ {
+ if ($logger !== null && !($logger instanceof Mustache_Logger || is_a($logger, 'Psr\\Log\\LoggerInterface'))) {
+ throw new Mustache_Exception_InvalidArgumentException('Expected an instance of Mustache_Logger or Psr\\Log\\LoggerInterface.');
+ }
+
+ if ($this->getCache()->getLogger() === null) {
+ $this->getCache()->setLogger($logger);
+ }
+
+ $this->logger = $logger;
+ }
+
+ /**
+ * Get the current Mustache Logger instance.
+ *
+ * @return Mustache_Logger|Psr\Log\LoggerInterface
+ */
+ public function getLogger()
+ {
+ return $this->logger;
+ }
+
+ /**
+ * Set the Mustache Tokenizer instance.
+ *
+ * @param Mustache_Tokenizer $tokenizer
+ */
+ public function setTokenizer(Mustache_Tokenizer $tokenizer)
+ {
+ $this->tokenizer = $tokenizer;
+ }
+
+ /**
+ * Get the current Mustache Tokenizer instance.
+ *
+ * If no Tokenizer instance has been explicitly specified, this method will instantiate and return a new one.
+ *
+ * @return Mustache_Tokenizer
+ */
+ public function getTokenizer()
+ {
+ if (!isset($this->tokenizer)) {
+ $this->tokenizer = new Mustache_Tokenizer();
+ }
+
+ return $this->tokenizer;
+ }
+
+ /**
+ * Set the Mustache Parser instance.
+ *
+ * @param Mustache_Parser $parser
+ */
+ public function setParser(Mustache_Parser $parser)
+ {
+ $this->parser = $parser;
+ }
+
+ /**
+ * Get the current Mustache Parser instance.
+ *
+ * If no Parser instance has been explicitly specified, this method will instantiate and return a new one.
+ *
+ * @return Mustache_Parser
+ */
+ public function getParser()
+ {
+ if (!isset($this->parser)) {
+ $this->parser = new Mustache_Parser();
+ }
+
+ return $this->parser;
+ }
+
+ /**
+ * Set the Mustache Compiler instance.
+ *
+ * @param Mustache_Compiler $compiler
+ */
+ public function setCompiler(Mustache_Compiler $compiler)
+ {
+ $this->compiler = $compiler;
+ }
+
+ /**
+ * Get the current Mustache Compiler instance.
+ *
+ * If no Compiler instance has been explicitly specified, this method will instantiate and return a new one.
+ *
+ * @return Mustache_Compiler
+ */
+ public function getCompiler()
+ {
+ if (!isset($this->compiler)) {
+ $this->compiler = new Mustache_Compiler();
+ }
+
+ return $this->compiler;
+ }
+
+ /**
+ * Set the Mustache Cache instance.
+ *
+ * @param Mustache_Cache $cache
+ */
+ public function setCache(Mustache_Cache $cache)
+ {
+ if (isset($this->logger) && $cache->getLogger() === null) {
+ $cache->setLogger($this->getLogger());
+ }
+
+ $this->cache = $cache;
+ }
+
+ /**
+ * Get the current Mustache Cache instance.
+ *
+ * If no Cache instance has been explicitly specified, this method will instantiate and return a new one.
+ *
+ * @return Mustache_Cache
+ */
+ public function getCache()
+ {
+ if (!isset($this->cache)) {
+ $this->setCache(new Mustache_Cache_NoopCache());
+ }
+
+ return $this->cache;
+ }
+
+ /**
+ * Get the current Lambda Cache instance.
+ *
+ * If 'cache_lambda_templates' is enabled, this is the default cache instance. Otherwise, it is a NoopCache.
+ *
+ * @see Mustache_Engine::getCache
+ *
+ * @return Mustache_Cache
+ */
+ protected function getLambdaCache()
+ {
+ if ($this->cacheLambdaTemplates) {
+ return $this->getCache();
+ }
+
+ if (!isset($this->lambdaCache)) {
+ $this->lambdaCache = new Mustache_Cache_NoopCache();
+ }
+
+ return $this->lambdaCache;
+ }
+
+ /**
+ * Helper method to generate a Mustache template class.
+ *
+ * This method must be updated any time options are added which make it so
+ * the same template could be parsed and compiled multiple different ways.
+ *
+ * @param string|Mustache_Source $source
+ *
+ * @return string Mustache Template class name
+ */
+ public function getTemplateClassName($source)
+ {
+ // For the most part, adding a new option here should do the trick.
+ //
+ // Pick a value here which is unique for each possible way the template
+ // could be compiled... but not necessarily unique per option value. See
+ // escape below, which only needs to differentiate between 'custom' and
+ // 'default' escapes.
+ //
+ // Keep this list in alphabetical order :)
+ $chunks = array(
+ 'charset' => $this->charset,
+ 'delimiters' => $this->delimiters ? $this->delimiters : '{{ }}',
+ 'entityFlags' => $this->entityFlags,
+ 'escape' => isset($this->escape) ? 'custom' : 'default',
+ 'key' => ($source instanceof Mustache_Source) ? $source->getKey() : 'source',
+ 'pragmas' => $this->getPragmas(),
+ 'strictCallables' => $this->strictCallables,
+ 'version' => self::VERSION,
+ );
+
+ $key = json_encode($chunks);
+
+ // Template Source instances have already provided their own source key. For strings, just include the whole
+ // source string in the md5 hash.
+ if (!$source instanceof Mustache_Source) {
+ $key .= "\n" . $source;
+ }
+
+ return $this->templateClassPrefix . md5($key);
+ }
+
+ /**
+ * Load a Mustache Template by name.
+ *
+ * @param string $name
+ *
+ * @return Mustache_Template
+ */
+ public function loadTemplate($name)
+ {
+ return $this->loadSource($this->getLoader()->load($name));
+ }
+
+ /**
+ * Load a Mustache partial Template by name.
+ *
+ * This is a helper method used internally by Template instances for loading partial templates. You can most likely
+ * ignore it completely.
+ *
+ * @param string $name
+ *
+ * @return Mustache_Template
+ */
+ public function loadPartial($name)
+ {
+ try {
+ if (isset($this->partialsLoader)) {
+ $loader = $this->partialsLoader;
+ } elseif (isset($this->loader) && !$this->loader instanceof Mustache_Loader_StringLoader) {
+ $loader = $this->loader;
+ } else {
+ throw new Mustache_Exception_UnknownTemplateException($name);
+ }
+
+ return $this->loadSource($loader->load($name));
+ } catch (Mustache_Exception_UnknownTemplateException $e) {
+ // If the named partial cannot be found, log then return null.
+ $this->log(
+ Mustache_Logger::WARNING,
+ 'Partial not found: "{name}"',
+ array('name' => $e->getTemplateName())
+ );
+ }
+ return null;
+ }
+
+ /**
+ * Load a Mustache lambda Template by source.
+ *
+ * This is a helper method used by Template instances to generate subtemplates for Lambda sections. You can most
+ * likely ignore it completely.
+ *
+ * @param string $source
+ * @param string $delims (default: null)
+ *
+ * @return Mustache_Template
+ */
+ public function loadLambda($source, $delims = null)
+ {
+ if ($delims !== null) {
+ $source = $delims . "\n" . $source;
+ }
+
+ return $this->loadSource($source, $this->getLambdaCache());
+ }
+
+ /**
+ * Instantiate and return a Mustache Template instance by source.
+ *
+ * Optionally provide a Mustache_Cache instance. This is used internally by Mustache_Engine::loadLambda to respect
+ * the 'cache_lambda_templates' configuration option.
+ *
+ * @see Mustache_Engine::loadTemplate
+ * @see Mustache_Engine::loadPartial
+ * @see Mustache_Engine::loadLambda
+ *
+ * @param string|Mustache_Source $source
+ * @param Mustache_Cache $cache (default: null)
+ *
+ * @return Mustache_Template
+ */
+ private function loadSource($source, Mustache_Cache $cache = null)
+ {
+ $className = $this->getTemplateClassName($source);
+
+ if (!isset($this->templates[$className])) {
+ if ($cache === null) {
+ $cache = $this->getCache();
+ }
+
+ if (!class_exists($className, false)) {
+ if (!$cache->load($className)) {
+ $compiled = $this->compile($source);
+ $cache->cache($className, $compiled);
+ }
+ }
+
+ $this->log(
+ Mustache_Logger::DEBUG,
+ 'Instantiating template: "{className}"',
+ array('className' => $className)
+ );
+
+ $this->templates[$className] = new $className($this);
+ }
+
+ return $this->templates[$className];
+ }
+
+ /**
+ * Helper method to tokenize a Mustache template.
+ *
+ * @see Mustache_Tokenizer::scan
+ *
+ * @param string $source
+ *
+ * @return array Tokens
+ */
+ private function tokenize($source)
+ {
+ return $this->getTokenizer()->scan($source, $this->delimiters);
+ }
+
+ /**
+ * Helper method to parse a Mustache template.
+ *
+ * @see Mustache_Parser::parse
+ *
+ * @param string $source
+ *
+ * @return array Token tree
+ */
+ private function parse($source)
+ {
+ $parser = $this->getParser();
+ $parser->setPragmas($this->getPragmas());
+
+ return $parser->parse($this->tokenize($source));
+ }
+
+ /**
+ * Helper method to compile a Mustache template.
+ *
+ * @see Mustache_Compiler::compile
+ *
+ * @param string|Mustache_Source $source
+ *
+ * @return string generated Mustache template class code
+ */
+ private function compile($source)
+ {
+ $name = $this->getTemplateClassName($source);
+
+ $this->log(
+ Mustache_Logger::INFO,
+ 'Compiling template to "{className}" class',
+ array('className' => $name)
+ );
+
+ if ($source instanceof Mustache_Source) {
+ $source = $source->getSource();
+ }
+ $tree = $this->parse($source);
+
+ $compiler = $this->getCompiler();
+ $compiler->setPragmas($this->getPragmas());
+
+ return $compiler->compile($source, $tree, $name, isset($this->escape), $this->charset, $this->strictCallables, $this->entityFlags);
+ }
+
+ /**
+ * Add a log record if logging is enabled.
+ *
+ * @param int $level The logging level
+ * @param string $message The log message
+ * @param array $context The log context
+ */
+ private function log($level, $message, array $context = array())
+ {
+ if (isset($this->logger)) {
+ $this->logger->log($level, $message, $context);
+ }
+ }
+}