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  • 封装smarty类

    <?php
    /**
     * Project:     Smarty: the PHP compiling template engine
     * File:        Smarty.class.php
     * SVN:         $Id: Smarty.class.php 4848 2014-06-08 18:12:09Z Uwe.Tews@googlemail.com $
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 2.1 of the License, or (at your option) any later version.
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     * Lesser General Public License for more details.
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     * For questions, help, comments, discussion, etc., please join the
     * Smarty mailing list. Send a blank e-mail to
     * smarty-discussion-subscribe@googlegroups.com
     *
     * @link      http://www.smarty.net/
     * @copyright 2008 New Digital Group, Inc.
     * @author    Monte Ohrt <monte at ohrt dot com>
     * @author    Uwe Tews
     * @author    Rodney Rehm
     * @package   Smarty
     * @version   3.1.19
     */

    /**
     * define shorthand directory separator constant
     */
    if (!defined('DS')) {
        define('DS', DIRECTORY_SEPARATOR);
    }

    /**
     * set SMARTY_DIR to absolute path to Smarty library files.
     * Sets SMARTY_DIR only if user application has not already defined it.
     */
    if (!defined('SMARTY_DIR')) {
        define('SMARTY_DIR', dirname(__FILE__) . DS);
    }

    /**
     * set SMARTY_SYSPLUGINS_DIR to absolute path to Smarty internal plugins.
     * Sets SMARTY_SYSPLUGINS_DIR only if user application has not already defined it.
     */
    if (!defined('SMARTY_SYSPLUGINS_DIR')) {
        define('SMARTY_SYSPLUGINS_DIR', SMARTY_DIR . 'sysplugins' . DS);
    }
    if (!defined('SMARTY_PLUGINS_DIR')) {
        define('SMARTY_PLUGINS_DIR', SMARTY_DIR . 'plugins' . DS);
    }
    if (!defined('SMARTY_MBSTRING')) {
        define('SMARTY_MBSTRING', function_exists('mb_split'));
    }
    if (!defined('SMARTY_RESOURCE_CHAR_SET')) {
        // UTF-8 can only be done properly when mbstring is available!
        /**
         * @deprecated in favor of Smarty::$_CHARSET
         */
        define('SMARTY_RESOURCE_CHAR_SET', SMARTY_MBSTRING ? 'UTF-8' : 'ISO-8859-1');
    }
    if (!defined('SMARTY_RESOURCE_DATE_FORMAT')) {
        /**
         * @deprecated in favor of Smarty::$_DATE_FORMAT
         */
        define('SMARTY_RESOURCE_DATE_FORMAT', '%b %e, %Y');
    }

    /**
     * register the class autoloader
     */
    if (!defined('SMARTY_SPL_AUTOLOAD')) {
        define('SMARTY_SPL_AUTOLOAD', 0);
    }

    if (SMARTY_SPL_AUTOLOAD && set_include_path(get_include_path() . PATH_SEPARATOR . SMARTY_SYSPLUGINS_DIR) !== false) {
        $registeredAutoLoadFunctions = spl_autoload_functions();
        if (!isset($registeredAutoLoadFunctions['spl_autoload'])) {
            spl_autoload_register();
        }
    } else {
        spl_autoload_register('smartyAutoload');
    }

    /**
     * Load always needed external class files
     */
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_data.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_templatebase.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_template.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_resource.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_resource_file.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_cacheresource.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_cacheresource_file.php';

    /**
     * This is the main Smarty class
     *
     * @package Smarty
     */
    class Smarty extends Smarty_Internal_TemplateBase
    {
        /**#@+
         * constant definitions
         */

        /**
         * smarty version
         */
        const SMARTY_VERSION = 'Smarty-3.1.19';

        /**
         * define variable scopes
         */
        const SCOPE_LOCAL = 0;
        const SCOPE_PARENT = 1;
        const SCOPE_ROOT = 2;
        const SCOPE_GLOBAL = 3;
        /**
         * define caching modes
         */
        const CACHING_OFF = 0;
        const CACHING_LIFETIME_CURRENT = 1;
        const CACHING_LIFETIME_SAVED = 2;
        /**
         * define constant for clearing cache files be saved expiration datees
         */
        const CLEAR_EXPIRED = - 1;

        /**
         * define compile check modes
         */
        const COMPILECHECK_OFF = 0;
        const COMPILECHECK_ON = 1;
        const COMPILECHECK_CACHEMISS = 2;
        /**
         * modes for handling of "<?php ... ?>" tags in templates.
         */
        const PHP_PASSTHRU = 0; //-> print tags as plain text
        const PHP_QUOTE = 1; //-> escape tags as entities
        const PHP_REMOVE = 2; //-> escape tags as entities
        const PHP_ALLOW = 3; //-> escape tags as entities
        /**
         * filter types
         */
        const FILTER_POST = 'post';
        const FILTER_PRE = 'pre';
        const FILTER_OUTPUT = 'output';
        const FILTER_VARIABLE = 'variable';
        /**
         * plugin types
         */
        const PLUGIN_FUNCTION = 'function';
        const PLUGIN_BLOCK = 'block';
        const PLUGIN_COMPILER = 'compiler';
        const PLUGIN_MODIFIER = 'modifier';
        const PLUGIN_MODIFIERCOMPILER = 'modifiercompiler';

        /**#@-*/

        /**
         * assigned global tpl vars
         */
        public static $global_tpl_vars = array();

        /**
         * error handler returned by set_error_hanlder() in Smarty::muteExpectedErrors()
         */
        public static $_previous_error_handler = null;
        /**
         * contains directories outside of SMARTY_DIR that are to be muted by muteExpectedErrors()
         */
        public static $_muted_directories = array();
        /**
         * Flag denoting if Multibyte String functions are available
         */
        public static $_MBSTRING = SMARTY_MBSTRING;
        /**
         * The character set to adhere to (e.g. "UTF-8")
         */
        public static $_CHARSET = SMARTY_RESOURCE_CHAR_SET;
        /**
         * The date format to be used internally
         * (accepts date() and strftime())
         */
        public static $_DATE_FORMAT = SMARTY_RESOURCE_DATE_FORMAT;
        /**
         * Flag denoting if PCRE should run in UTF-8 mode
         */
        public static $_UTF8_MODIFIER = 'u';

        /**
         * Flag denoting if operating system is windows
         */
        public static $_IS_WINDOWS = false;

        /**#@+
         * variables
         */

        /**
         * auto literal on delimiters with whitspace
         *
         * @var boolean
         */
        public $auto_literal = true;
        /**
         * display error on not assigned variables
         *
         * @var boolean
         */
        public $error_unassigned = false;
        /**
         * look up relative filepaths in include_path
         *
         * @var boolean
         */
        public $use_include_path = false;
        /**
         * template directory
         *
         * @var array
         */
        private $template_dir = array();
        /**
         * joined template directory string used in cache keys
         *
         * @var string
         */
        public $joined_template_dir = null;
        /**
         * joined config directory string used in cache keys
         *
         * @var string
         */
        public $joined_config_dir = null;
        /**
         * default template handler
         *
         * @var callable
         */
        public $default_template_handler_func = null;
        /**
         * default config handler
         *
         * @var callable
         */
        public $default_config_handler_func = null;
        /**
         * default plugin handler
         *
         * @var callable
         */
        public $default_plugin_handler_func = null;
        /**
         * compile directory
         *
         * @var string
         */
        private $compile_dir = null;
        /**
         * plugins directory
         *
         * @var array
         */
        private $plugins_dir = array();
        /**
         * cache directory
         *
         * @var string
         */
        private $cache_dir = null;
        /**
         * config directory
         *
         * @var array
         */
        private $config_dir = array();
        /**
         * force template compiling?
         *
         * @var boolean
         */
        public $force_compile = false;
        /**
         * check template for modifications?
         *
         * @var boolean
         */
        public $compile_check = true;
        /**
         * use sub dirs for compiled/cached files?
         *
         * @var boolean
         */
        public $use_sub_dirs = false;
        /**
         * allow ambiguous resources (that are made unique by the resource handler)
         *
         * @var boolean
         */
        public $allow_ambiguous_resources = false;
        /**
         * caching enabled
         *
         * @var boolean
         */
        public $caching = false;
        /**
         * merge compiled includes
         *
         * @var boolean
         */
        public $merge_compiled_includes = false;
        /**
         * template inheritance merge compiled includes
         *
         * @var boolean
         */
        public $inheritance_merge_compiled_includes = true;
        /**
         * cache lifetime in seconds
         *
         * @var integer
         */
        public $cache_lifetime = 3600;
        /**
         * force cache file creation
         *
         * @var boolean
         */
        public $force_cache = false;
        /**
         * Set this if you want different sets of cache files for the same
         * templates.
         *
         * @var string
         */
        public $cache_id = null;
        /**
         * Set this if you want different sets of compiled files for the same
         * templates.
         *
         * @var string
         */
        public $compile_id = null;
        /**
         * template left-delimiter
         *
         * @var string
         */
        public $left_delimiter = "{";
        /**
         * template right-delimiter
         *
         * @var string
         */
        public $right_delimiter = "}";
        /**#@+
         * security
         */
        /**
         * class name
         * This should be instance of Smarty_Security.
         *
         * @var string
         * @see Smarty_Security
         */
        public $security_class = 'Smarty_Security';
        /**
         * implementation of security class
         *
         * @var Smarty_Security
         */
        public $security_policy = null;
        /**
         * controls handling of PHP-blocks
         *
         * @var integer
         */
        public $php_handling = self::PHP_PASSTHRU;
        /**
         * controls if the php template file resource is allowed
         *
         * @var bool
         */
        public $allow_php_templates = false;
        /**
         * Should compiled-templates be prevented from being called directly?
         * {@internal
         * Currently used by Smarty_Internal_Template only.
         * }}
         *
         * @var boolean
         */
        public $direct_access_security = true;
        /**#@-*/
        /**
         * debug mode
         * Setting this to true enables the debug-console.
         *
         * @var boolean
         */
        public $debugging = false;
        /**
         * This determines if debugging is enable-able from the browser.
         * <ul>
         *  <li>NONE => no debugging control allowed</li>
         *  <li>URL => enable debugging when SMARTY_DEBUG is found in the URL.</li>
         * </ul>
         *
         * @var string
         */
        public $debugging_ctrl = 'NONE';
        /**
         * Name of debugging URL-param.
         * Only used when $debugging_ctrl is set to 'URL'.
         * The name of the URL-parameter that activates debugging.
         *
         * @var type
         */
        public $smarty_debug_id = 'SMARTY_DEBUG';
        /**
         * Path of debug template.
         *
         * @var string
         */
        public $debug_tpl = null;
        /**
         * When set, smarty uses this value as error_reporting-level.
         *
         * @var int
         */
        public $error_reporting = null;
        /**
         * Internal flag for getTags()
         *
         * @var boolean
         */
        public $get_used_tags = false;

        /**#@+
         * config var settings
         */

        /**
         * Controls whether variables with the same name overwrite each other.
         *
         * @var boolean
         */
        public $config_overwrite = true;
        /**
         * Controls whether config values of on/true/yes and off/false/no get converted to boolean.
         *
         * @var boolean
         */
        public $config_booleanize = true;
        /**
         * Controls whether hidden config sections/vars are read from the file.
         *
         * @var boolean
         */
        public $config_read_hidden = false;

        /**#@-*/

        /**#@+
         * resource locking
         */

        /**
         * locking concurrent compiles
         *
         * @var boolean
         */
        public $compile_locking = true;
        /**
         * Controls whether cache resources should emply locking mechanism
         *
         * @var boolean
         */
        public $cache_locking = false;
        /**
         * seconds to wait for acquiring a lock before ignoring the write lock
         *
         * @var float
         */
        public $locking_timeout = 10;

        /**#@-*/

        /**
         * global template functions
         *
         * @var array
         */
        public $template_functions = array();
        /**
         * resource type used if none given
         * Must be an valid key of $registered_resources.
         *
         * @var string
         */
        public $default_resource_type = 'file';
        /**
         * caching type
         * Must be an element of $cache_resource_types.
         *
         * @var string
         */
        public $caching_type = 'file';
        /**
         * internal config properties
         *
         * @var array
         */
        public $properties = array();
        /**
         * config type
         *
         * @var string
         */
        public $default_config_type = 'file';
        /**
         * cached template objects
         *
         * @var array
         */
        public $template_objects = array();
        /**
         * check If-Modified-Since headers
         *
         * @var boolean
         */
        public $cache_modified_check = false;
        /**
         * registered plugins
         *
         * @var array
         */
        public $registered_plugins = array();
        /**
         * plugin search order
         *
         * @var array
         */
        public $plugin_search_order = array('function', 'block', 'compiler', 'class');
        /**
         * registered objects
         *
         * @var array
         */
        public $registered_objects = array();
        /**
         * registered classes
         *
         * @var array
         */
        public $registered_classes = array();
        /**
         * registered filters
         *
         * @var array
         */
        public $registered_filters = array();
        /**
         * registered resources
         *
         * @var array
         */
        public $registered_resources = array();
        /**
         * resource handler cache
         *
         * @var array
         */
        public $_resource_handlers = array();
        /**
         * registered cache resources
         *
         * @var array
         */
        public $registered_cache_resources = array();
        /**
         * cache resource handler cache
         *
         * @var array
         */
        public $_cacheresource_handlers = array();
        /**
         * autoload filter
         *
         * @var array
         */
        public $autoload_filters = array();
        /**
         * default modifier
         *
         * @var array
         */
        public $default_modifiers = array();
        /**
         * autoescape variable output
         *
         * @var boolean
         */
        public $escape_html = false;
        /**
         * global internal smarty vars
         *
         * @var array
         */
        public static $_smarty_vars = array();
        /**
         * start time for execution time calculation
         *
         * @var int
         */
        public $start_time = 0;
        /**
         * default file permissions
         *
         * @var int
         */
        public $_file_perms = 0644;
        /**
         * default dir permissions
         *
         * @var int
         */
        public $_dir_perms = 0771;
        /**
         * block tag hierarchy
         *
         * @var array
         */
        public $_tag_stack = array();
        /**
         * self pointer to Smarty object
         *
         * @var Smarty
         */
        public $smarty;
        /**
         * required by the compiler for BC
         *
         * @var string
         */
        public $_current_file = null;
        /**
         * internal flag to enable parser debugging
         *
         * @var bool
         */
        public $_parserdebug = false;
        /**
         * Saved parameter of merged templates during compilation
         *
         * @var array
         */
        public $merged_templates_func = array();
        /**#@-*/

        /**
         * Initialize new Smarty object

         */
        public function __construct()
        {
            // selfpointer needed by some other class methods
            $this->smarty = $this;
            if (is_callable('mb_internal_encoding')) {
                mb_internal_encoding(Smarty::$_CHARSET);
            }
            $this->start_time = microtime(true);
            // set default dirs
            $this->setTemplateDir('.' . DS . 'templates' . DS)
                ->setCompileDir('.' . DS . 'templates_c' . DS)
                ->setPluginsDir(SMARTY_PLUGINS_DIR)
                ->setCacheDir('.' . DS . 'cache' . DS)
                ->setConfigDir('.' . DS . 'configs' . DS);

            $this->debug_tpl = 'file:' . dirname(__FILE__) . '/debug.tpl';
            if (isset($_SERVER['SCRIPT_NAME'])) {
                $this->assignGlobal('SCRIPT_NAME', $_SERVER['SCRIPT_NAME']);
            }
        }

        /**
         * Class destructor
         */
        public function __destruct()
        {
            // intentionally left blank
        }

        /**
         * <<magic>> set selfpointer on cloned object
         */
        public function __clone()
        {
            $this->smarty = $this;
        }

        /**
         * <<magic>> Generic getter.
         * Calls the appropriate getter function.
         * Issues an E_USER_NOTICE if no valid getter is found.
         *
         * @param  string $name property name
         *
         * @return mixed
         */
        public function __get($name)
        {
            $allowed = array(
                'template_dir' => 'getTemplateDir',
                'config_dir'   => 'getConfigDir',
                'plugins_dir'  => 'getPluginsDir',
                'compile_dir'  => 'getCompileDir',
                'cache_dir'    => 'getCacheDir',
            );

            if (isset($allowed[$name])) {
                return $this->{$allowed[$name]}();
            } else {
                trigger_error('Undefined property: ' . get_class($this) . '::$' . $name, E_USER_NOTICE);
            }
        }

        /**
         * <<magic>> Generic setter.
         * Calls the appropriate setter function.
         * Issues an E_USER_NOTICE if no valid setter is found.
         *
         * @param string $name  property name
         * @param mixed  $value parameter passed to setter
         */
        public function __set($name, $value)
        {
            $allowed = array(
                'template_dir' => 'setTemplateDir',
                'config_dir'   => 'setConfigDir',
                'plugins_dir'  => 'setPluginsDir',
                'compile_dir'  => 'setCompileDir',
                'cache_dir'    => 'setCacheDir',
            );

            if (isset($allowed[$name])) {
                $this->{$allowed[$name]}($value);
            } else {
                trigger_error('Undefined property: ' . get_class($this) . '::$' . $name, E_USER_NOTICE);
            }
        }

        /**
         * Check if a template resource exists
         *
         * @param  string $resource_name template name
         *
         * @return boolean status
         */
        public function templateExists($resource_name)
        {
            // create template object
            $save = $this->template_objects;
            $tpl = new $this->template_class($resource_name, $this);
            // check if it does exists
            $result = $tpl->source->exists;
            $this->template_objects = $save;

            return $result;
        }

        /**
         * Returns a single or all global  variables
         *
         * @param  string $varname variable name or null
         *
         * @return string variable value or or array of variables
         */
        public function getGlobal($varname = null)
        {
            if (isset($varname)) {
                if (isset(self::$global_tpl_vars[$varname])) {
                    return self::$global_tpl_vars[$varname]->value;
                } else {
                    return '';
                }
            } else {
                $_result = array();
                foreach (self::$global_tpl_vars AS $key => $var) {
                    $_result[$key] = $var->value;
                }

                return $_result;
            }
        }

        /**
         * Empty cache folder
         *
         * @param  integer $exp_time expiration time
         * @param  string  $type     resource type
         *
         * @return integer number of cache files deleted
         */
        public function clearAllCache($exp_time = null, $type = null)
        {
            // load cache resource and call clearAll
            $_cache_resource = Smarty_CacheResource::load($this, $type);
            Smarty_CacheResource::invalidLoadedCache($this);

            return $_cache_resource->clearAll($this, $exp_time);
        }

        /**
         * Empty cache for a specific template
         *
         * @param  string  $template_name template name
         * @param  string  $cache_id      cache id
         * @param  string  $compile_id    compile id
         * @param  integer $exp_time      expiration time
         * @param  string  $type          resource type
         *
         * @return integer number of cache files deleted
         */
        public function clearCache($template_name, $cache_id = null, $compile_id = null, $exp_time = null, $type = null)
        {
            // load cache resource and call clear
            $_cache_resource = Smarty_CacheResource::load($this, $type);
            Smarty_CacheResource::invalidLoadedCache($this);

            return $_cache_resource->clear($this, $template_name, $cache_id, $compile_id, $exp_time);
        }

        /**
         * Loads security class and enables security
         *
         * @param  string|Smarty_Security $security_class if a string is used, it must be class-name
         *
         * @return Smarty                 current Smarty instance for chaining
         * @throws SmartyException        when an invalid class name is provided
         */
        public function enableSecurity($security_class = null)
        {
            if ($security_class instanceof Smarty_Security) {
                $this->security_policy = $security_class;

                return $this;
            } elseif (is_object($security_class)) {
                throw new SmartyException("Class '" . get_class($security_class) . "' must extend Smarty_Security.");
            }
            if ($security_class == null) {
                $security_class = $this->security_class;
            }
            if (!class_exists($security_class)) {
                throw new SmartyException("Security class '$security_class' is not defined");
            } elseif ($security_class !== 'Smarty_Security' && !is_subclass_of($security_class, 'Smarty_Security')) {
                throw new SmartyException("Class '$security_class' must extend Smarty_Security.");
            } else {
                $this->security_policy = new $security_class($this);
            }

            return $this;
        }

        /**
         * Disable security
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function disableSecurity()
        {
            $this->security_policy = null;

            return $this;
        }

        /**
         * Set template directory
         *
         * @param  string|array $template_dir directory(s) of template sources
         *
         * @return Smarty       current Smarty instance for chaining
         */
        public function setTemplateDir($template_dir)
        {
            $this->template_dir = array();
            foreach ((array) $template_dir as $k => $v) {
                $this->template_dir[$k] = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($v, '/\')) . DS;
            }

            $this->joined_template_dir = join(DIRECTORY_SEPARATOR, $this->template_dir);

            return $this;
        }

        /**
         * Add template directory(s)
         *
         * @param  string|array $template_dir directory(s) of template sources
         * @param  string       $key          of the array element to assign the template dir to
         *
         * @return Smarty          current Smarty instance for chaining
         * @throws SmartyException when the given template directory is not valid
         */
        public function addTemplateDir($template_dir, $key = null)
        {
            // make sure we're dealing with an array
            $this->template_dir = (array) $this->template_dir;

            if (is_array($template_dir)) {
                foreach ($template_dir as $k => $v) {
                    $v = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($v, '/\')) . DS;
                    if (is_int($k)) {
                        // indexes are not merged but appended
                        $this->template_dir[] = $v;
                    } else {
                        // string indexes are overridden
                        $this->template_dir[$k] = $v;
                    }
                }
            } else {
                $v = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($template_dir, '/\')) . DS;
                if ($key !== null) {
                    // override directory at specified index
                    $this->template_dir[$key] = $v;
                } else {
                    // append new directory
                    $this->template_dir[] = $v;
                }
            }
            $this->joined_template_dir = join(DIRECTORY_SEPARATOR, $this->template_dir);

            return $this;
        }

        /**
         * Get template directories
         *
         * @param mixed $index index of directory to get, null to get all
         *
         * @return array|string list of template directories, or directory of $index
         */
        public function getTemplateDir($index = null)
        {
            if ($index !== null) {
                return isset($this->template_dir[$index]) ? $this->template_dir[$index] : null;
            }

            return (array) $this->template_dir;
        }

        /**
         * Set config directory
         *
         * @param $config_dir
         *
         * @return Smarty       current Smarty instance for chaining
         */
        public function setConfigDir($config_dir)
        {
            $this->config_dir = array();
            foreach ((array) $config_dir as $k => $v) {
                $this->config_dir[$k] = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($v, '/\')) . DS;
            }

            $this->joined_config_dir = join(DIRECTORY_SEPARATOR, $this->config_dir);

            return $this;
        }

        /**
         * Add config directory(s)
         *
         * @param string|array        $config_dir directory(s) of config sources
         * @param mixed $key        key of the array element to assign the config dir to
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function addConfigDir($config_dir, $key = null)
        {
            // make sure we're dealing with an array
            $this->config_dir = (array) $this->config_dir;

            if (is_array($config_dir)) {
                foreach ($config_dir as $k => $v) {
                    $v = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($v, '/\')) . DS;
                    if (is_int($k)) {
                        // indexes are not merged but appended
                        $this->config_dir[] = $v;
                    } else {
                        // string indexes are overridden
                        $this->config_dir[$k] = $v;
                    }
                }
            } else {
                $v = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($config_dir, '/\')) . DS;
                if ($key !== null) {
                    // override directory at specified index
                    $this->config_dir[$key] = rtrim($v, '/\') . DS;
                } else {
                    // append new directory
                    $this->config_dir[] = rtrim($v, '/\') . DS;
                }
            }

            $this->joined_config_dir = join(DIRECTORY_SEPARATOR, $this->config_dir);

            return $this;
        }

        /**
         * Get config directory
         *
         * @param mixed $index index of directory to get, null to get all
         *
         * @return array|string configuration directory
         */
        public function getConfigDir($index = null)
        {
            if ($index !== null) {
                return isset($this->config_dir[$index]) ? $this->config_dir[$index] : null;
            }

            return (array) $this->config_dir;
        }

        /**
         * Set plugins directory
         *
         * @param  string|array $plugins_dir directory(s) of plugins
         *
         * @return Smarty       current Smarty instance for chaining
         */
        public function setPluginsDir($plugins_dir)
        {
            $this->plugins_dir = array();
            foreach ((array) $plugins_dir as $k => $v) {
                $this->plugins_dir[$k] = rtrim($v, '/\') . DS;
            }

            return $this;
        }

        /**
         * Adds directory of plugin files
         *
         * @param $plugins_dir
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function addPluginsDir($plugins_dir)
        {
            // make sure we're dealing with an array
            $this->plugins_dir = (array) $this->plugins_dir;

            if (is_array($plugins_dir)) {
                foreach ($plugins_dir as $k => $v) {
                    if (is_int($k)) {
                        // indexes are not merged but appended
                        $this->plugins_dir[] = rtrim($v, '/\') . DS;
                    } else {
                        // string indexes are overridden
                        $this->plugins_dir[$k] = rtrim($v, '/\') . DS;
                    }
                }
            } else {
                // append new directory
                $this->plugins_dir[] = rtrim($plugins_dir, '/\') . DS;
            }

            $this->plugins_dir = array_unique($this->plugins_dir);

            return $this;
        }

        /**
         * Get plugin directories
         *
         * @return array list of plugin directories
         */
        public function getPluginsDir()
        {
            return (array) $this->plugins_dir;
        }

        /**
         * Set compile directory
         *
         * @param  string $compile_dir directory to store compiled templates in
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function setCompileDir($compile_dir)
        {
            $this->compile_dir = rtrim($compile_dir, '/\') . DS;
            if (!isset(Smarty::$_muted_directories[$this->compile_dir])) {
                Smarty::$_muted_directories[$this->compile_dir] = null;
            }

            return $this;
        }

        /**
         * Get compiled directory
         *
         * @return string path to compiled templates
         */
        public function getCompileDir()
        {
            return $this->compile_dir;
        }

        /**
         * Set cache directory
         *
         * @param  string $cache_dir directory to store cached templates in
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function setCacheDir($cache_dir)
        {
            $this->cache_dir = rtrim($cache_dir, '/\') . DS;
            if (!isset(Smarty::$_muted_directories[$this->cache_dir])) {
                Smarty::$_muted_directories[$this->cache_dir] = null;
            }

            return $this;
        }

        /**
         * Get cache directory
         *
         * @return string path of cache directory
         */
        public function getCacheDir()
        {
            return $this->cache_dir;
        }

        /**
         * Set default modifiers
         *
         * @param  array|string $modifiers modifier or list of modifiers to set
         *
         * @return Smarty       current Smarty instance for chaining
         */
        public function setDefaultModifiers($modifiers)
        {
            $this->default_modifiers = (array) $modifiers;

            return $this;
        }

        /**
         * Add default modifiers
         *
         * @param  array|string $modifiers modifier or list of modifiers to add
         *
         * @return Smarty       current Smarty instance for chaining
         */
        public function addDefaultModifiers($modifiers)
        {
            if (is_array($modifiers)) {
                $this->default_modifiers = array_merge($this->default_modifiers, $modifiers);
            } else {
                $this->default_modifiers[] = $modifiers;
            }

            return $this;
        }

        /**
         * Get default modifiers
         *
         * @return array list of default modifiers
         */
        public function getDefaultModifiers()
        {
            return $this->default_modifiers;
        }

        /**
         * Set autoload filters
         *
         * @param  array  $filters filters to load automatically
         * @param  string $type    "pre", "output", … specify the filter type to set. Defaults to none treating $filters' keys as the appropriate types
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function setAutoloadFilters($filters, $type = null)
        {
            if ($type !== null) {
                $this->autoload_filters[$type] = (array) $filters;
            } else {
                $this->autoload_filters = (array) $filters;
            }

            return $this;
        }

        /**
         * Add autoload filters
         *
         * @param  array  $filters filters to load automatically
         * @param  string $type    "pre", "output", … specify the filter type to set. Defaults to none treating $filters' keys as the appropriate types
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function addAutoloadFilters($filters, $type = null)
        {
            if ($type !== null) {
                if (!empty($this->autoload_filters[$type])) {
                    $this->autoload_filters[$type] = array_merge($this->autoload_filters[$type], (array) $filters);
                } else {
                    $this->autoload_filters[$type] = (array) $filters;
                }
            } else {
                foreach ((array) $filters as $key => $value) {
                    if (!empty($this->autoload_filters[$key])) {
                        $this->autoload_filters[$key] = array_merge($this->autoload_filters[$key], (array) $value);
                    } else {
                        $this->autoload_filters[$key] = (array) $value;
                    }
                }
            }

            return $this;
        }

        /**
         * Get autoload filters
         *
         * @param  string $type type of filter to get autoloads for. Defaults to all autoload filters
         *
         * @return array  array( 'type1' => array( 'filter1', 'filter2', … ) ) or array( 'filter1', 'filter2', …) if $type was specified
         */
        public function getAutoloadFilters($type = null)
        {
            if ($type !== null) {
                return isset($this->autoload_filters[$type]) ? $this->autoload_filters[$type] : array();
            }

            return $this->autoload_filters;
        }

        /**
         * return name of debugging template
         *
         * @return string
         */
        public function getDebugTemplate()
        {
            return $this->debug_tpl;
        }

        /**
         * set the debug template
         *
         * @param  string $tpl_name
         *
         * @return Smarty          current Smarty instance for chaining
         * @throws SmartyException if file is not readable
         */
        public function setDebugTemplate($tpl_name)
        {
            if (!is_readable($tpl_name)) {
                throw new SmartyException("Unknown file '{$tpl_name}'");
            }
            $this->debug_tpl = $tpl_name;

            return $this;
        }

        /**
         * creates a template object
         *
         * @param  string  $template   the resource handle of the template file
         * @param  mixed   $cache_id   cache id to be used with this template
         * @param  mixed   $compile_id compile id to be used with this template
         * @param  object  $parent     next higher level of Smarty variables
         * @param  boolean $do_clone   flag is Smarty object shall be cloned
         *
         * @return object  template object
         */
        public function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null, $do_clone = true)
        {
            if ($cache_id !== null && (is_object($cache_id) || is_array($cache_id))) {
                $parent = $cache_id;
                $cache_id = null;
            }
            if ($parent !== null && is_array($parent)) {
                $data = $parent;
                $parent = null;
            } else {
                $data = null;
            }
            // default to cache_id and compile_id of Smarty object
            $cache_id = $cache_id === null ? $this->cache_id : $cache_id;
            $compile_id = $compile_id === null ? $this->compile_id : $compile_id;
            // already in template cache?
            if ($this->allow_ambiguous_resources) {
                $_templateId = Smarty_Resource::getUniqueTemplateName($this, $template) . $cache_id . $compile_id;
            } else {
                $_templateId = $this->joined_template_dir . '#' . $template . $cache_id . $compile_id;
            }
            if (isset($_templateId[150])) {
                $_templateId = sha1($_templateId);
            }
            if ($do_clone) {
                if (isset($this->template_objects[$_templateId])) {
                    // return cached template object
                    $tpl = clone $this->template_objects[$_templateId];
                    $tpl->smarty = clone $tpl->smarty;
                    $tpl->parent = $parent;
                    $tpl->tpl_vars = array();
                    $tpl->config_vars = array();
                } else {
                    $tpl = new $this->template_class($template, clone $this, $parent, $cache_id, $compile_id);
                }
            } else {
                if (isset($this->template_objects[$_templateId])) {
                    // return cached template object
                    $tpl = $this->template_objects[$_templateId];
                    $tpl->parent = $parent;
                    $tpl->tpl_vars = array();
                    $tpl->config_vars = array();
                } else {
                    $tpl = new $this->template_class($template, $this, $parent, $cache_id, $compile_id);
                }
            }
            // fill data if present
            if (!empty($data) && is_array($data)) {
                // set up variable values
                foreach ($data as $_key => $_val) {
                    $tpl->tpl_vars[$_key] = new Smarty_variable($_val);
                }
            }

            return $tpl;
        }

        /**
         * Takes unknown classes and loads plugin files for them
         * class name format: Smarty_PluginType_PluginName
         * plugin filename format: plugintype.pluginname.php
         *
         * @param  string $plugin_name class plugin name to load
         * @param  bool   $check       check if already loaded
         *
         * @throws SmartyException
         * @return string |boolean filepath of loaded file or false
         */
        public function loadPlugin($plugin_name, $check = true)
        {
            // if function or class exists, exit silently (already loaded)
            if ($check && (is_callable($plugin_name) || class_exists($plugin_name, false))) {
                return true;
            }
            // Plugin name is expected to be: Smarty_[Type]_[Name]
            $_name_parts = explode('_', $plugin_name, 3);
            // class name must have three parts to be valid plugin
            // count($_name_parts) < 3 === !isset($_name_parts[2])
            if (!isset($_name_parts[2]) || strtolower($_name_parts[0]) !== 'smarty') {
                throw new SmartyException("plugin {$plugin_name} is not a valid name format");
            }
            // if type is "internal", get plugin from sysplugins
            if (strtolower($_name_parts[1]) == 'internal') {
                $file = SMARTY_SYSPLUGINS_DIR . strtolower($plugin_name) . '.php';
                if (file_exists($file)) {
                    require_once($file);

                    return $file;
                } else {
                    return false;
                }
            }
            // plugin filename is expected to be: [type].[name].php
            $_plugin_filename = "{$_name_parts[1]}.{$_name_parts[2]}.php";

            $_stream_resolve_include_path = function_exists('stream_resolve_include_path');

            // loop through plugin dirs and find the plugin
            foreach ($this->getPluginsDir() as $_plugin_dir) {
                $names = array(
                    $_plugin_dir . $_plugin_filename,
                    $_plugin_dir . strtolower($_plugin_filename),
                );
                foreach ($names as $file) {
                    if (file_exists($file)) {
                        require_once($file);

                        return $file;
                    }
                    if ($this->use_include_path && !preg_match('/^([/\\]|[a-zA-Z]:[/\\])/', $_plugin_dir)) {
                        // try PHP include_path
                        if ($_stream_resolve_include_path) {
                            $file = stream_resolve_include_path($file);
                        } else {
                            $file = Smarty_Internal_Get_Include_Path::getIncludePath($file);
                        }

                        if ($file !== false) {
                            require_once($file);

                            return $file;
                        }
                    }
                }
            }
            // no plugin loaded
            return false;
        }

        /**
         * Compile all template files
         *
         * @param  string $extension     file extension
         * @param  bool   $force_compile force all to recompile
         * @param  int    $time_limit
         * @param  int    $max_errors
         *
         * @return integer number of template files recompiled
         */
        public function compileAllTemplates($extension = '.tpl', $force_compile = false, $time_limit = 0, $max_errors = null)
        {
            return Smarty_Internal_Utility::compileAllTemplates($extension, $force_compile, $time_limit, $max_errors, $this);
        }

        /**
         * Compile all config files
         *
         * @param  string $extension     file extension
         * @param  bool   $force_compile force all to recompile
         * @param  int    $time_limit
         * @param  int    $max_errors
         *
         * @return integer number of template files recompiled
         */
        public function compileAllConfig($extension = '.conf', $force_compile = false, $time_limit = 0, $max_errors = null)
        {
            return Smarty_Internal_Utility::compileAllConfig($extension, $force_compile, $time_limit, $max_errors, $this);
        }

        /**
         * Delete compiled template file
         *
         * @param  string  $resource_name template name
         * @param  string  $compile_id    compile id
         * @param  integer $exp_time      expiration time
         *
         * @return integer number of template files deleted
         */
        public function clearCompiledTemplate($resource_name = null, $compile_id = null, $exp_time = null)
        {
            return Smarty_Internal_Utility::clearCompiledTemplate($resource_name, $compile_id, $exp_time, $this);
        }

        /**
         * Return array of tag/attributes of all tags used by an template
         *
         * @param Smarty_Internal_Template $template
         *
         * @return array  of tag/attributes
         */
        public function getTags(Smarty_Internal_Template $template)
        {
            return Smarty_Internal_Utility::getTags($template);
        }

        /**
         * Run installation test
         *
         * @param  array $errors Array to write errors into, rather than outputting them
         *
         * @return boolean true if setup is fine, false if something is wrong
         */
        public function testInstall(&$errors = null)
        {
            return Smarty_Internal_Utility::testInstall($this, $errors);
        }

        /**
         * Error Handler to mute expected messages
         *
         * @link http://php.net/set_error_handler
         *
         * @param  integer $errno Error level
         * @param          $errstr
         * @param          $errfile
         * @param          $errline
         * @param          $errcontext
         *
         * @return boolean
         */
        public static function mutingErrorHandler($errno, $errstr, $errfile, $errline, $errcontext)
        {
            $_is_muted_directory = false;

            // add the SMARTY_DIR to the list of muted directories
            if (!isset(Smarty::$_muted_directories[SMARTY_DIR])) {
                $smarty_dir = realpath(SMARTY_DIR);
                if ($smarty_dir !== false) {
                    Smarty::$_muted_directories[SMARTY_DIR] = array(
                        'file'   => $smarty_dir,
                        'length' => strlen($smarty_dir),
                    );
                }
            }

            // walk the muted directories and test against $errfile
            foreach (Smarty::$_muted_directories as $key => &$dir) {
                if (!$dir) {
                    // resolve directory and length for speedy comparisons
                    $file = realpath($key);
                    if ($file === false) {
                        // this directory does not exist, remove and skip it
                        unset(Smarty::$_muted_directories[$key]);
                        continue;
                    }
                    $dir = array(
                        'file'   => $file,
                        'length' => strlen($file),
                    );
                }
                if (!strncmp($errfile, $dir['file'], $dir['length'])) {
                    $_is_muted_directory = true;
                    break;
                }
            }

            // pass to next error handler if this error did not occur inside SMARTY_DIR
            // or the error was within smarty but masked to be ignored
            if (!$_is_muted_directory || ($errno && $errno & error_reporting())) {
                if (Smarty::$_previous_error_handler) {
                    return call_user_func(Smarty::$_previous_error_handler, $errno, $errstr, $errfile, $errline, $errcontext);
                } else {
                    return false;
                }
            }
        }

        /**
         * Enable error handler to mute expected messages
         *
         * @return void
         */
        public static function muteExpectedErrors()
        {
            /*
                error muting is done because some people implemented custom error_handlers using
                http://php.net/set_error_handler and for some reason did not understand the following paragraph:

                    It is important to remember that the standard PHP error handler is completely bypassed for the
                    error types specified by error_types unless the callback function returns FALSE.
                    error_reporting() settings will have no effect and your error handler will be called regardless -
                    however you are still able to read the current value of error_reporting and act appropriately.
                    Of particular note is that this value will be 0 if the statement that caused the error was
                    prepended by the @ error-control operator.

                Smarty deliberately uses @filemtime() over file_exists() and filemtime() in some places. Reasons include
                    - @filemtime() is almost twice as fast as using an additional file_exists()
                    - between file_exists() and filemtime() a possible race condition is opened,
                      which does not exist using the simple @filemtime() approach.
            */
            $error_handler = array('Smarty', 'mutingErrorHandler');
            $previous = set_error_handler($error_handler);

            // avoid dead loops
            if ($previous !== $error_handler) {
                Smarty::$_previous_error_handler = $previous;
            }
        }

        /**
         * Disable error handler muting expected messages
         *
         * @return void
         */
        public static function unmuteExpectedErrors()
        {
            restore_error_handler();
        }
    }

    // Check if we're running on windows
    Smarty::$_IS_WINDOWS = strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';

    // let PCRE (preg_*) treat strings as ISO-8859-1 if we're not dealing with UTF-8
    if (Smarty::$_CHARSET !== 'UTF-8') {
        Smarty::$_UTF8_MODIFIER = '';
    }

    /**
     * Smarty exception class
     *
     * @package Smarty
     */
    class SmartyException extends Exception
    {
        public static $escape = false;

        public function __toString()
        {
            return ' --> Smarty: ' . (self::$escape ? htmlentities($this->message) : $this->message) . ' <-- ';
        }
    }

    /**
     * Smarty compiler exception class
     *
     * @package Smarty
     */
    class SmartyCompilerException extends SmartyException
    {
        public function __toString()
        {
            return ' --> Smarty Compiler: ' . $this->message . ' <-- ';
        }

        /**
         * The line number of the template error
         *
         * @type int|null
         */
        public $line = null;
        /**
         * The template source snippet relating to the error
         *
         * @type string|null
         */
        public $source = null;
        /**
         * The raw text of the error message
         *
         * @type string|null
         */
        public $desc = null;
        /**
         * The resource identifier or template name
         *
         * @type string|null
         */
        public $template = null;
    }

    /**
     * Autoloader
     */
    function smartyAutoload($class)
    {
        $_class = strtolower($class);
        static $_classes = array(
            'smarty_config_source'               => true,
            'smarty_config_compiled'             => true,
            'smarty_security'                    => true,
            'smarty_cacheresource'               => true,
            'smarty_cacheresource_custom'        => true,
            'smarty_cacheresource_keyvaluestore' => true,
            'smarty_resource'                    => true,
            'smarty_resource_custom'             => true,
            'smarty_resource_uncompiled'         => true,
            'smarty_resource_recompiled'         => true,
        );

        if (!strncmp($_class, 'smarty_internal_', 16) || isset($_classes[$_class])) {
            include SMARTY_SYSPLUGINS_DIR . $_class . '.php';
        }
    }
    <?php
    /**
     * Project:     Smarty: the PHP compiling template engine
     * File:        Smarty.class.php
     * SVN:         $Id: Smarty.class.php 4848 2014-06-08 18:12:09Z Uwe.Tews@googlemail.com $
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 2.1 of the License, or (at your option) any later version.
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     * Lesser General Public License for more details.
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     * For questions, help, comments, discussion, etc., please join the
     * Smarty mailing list. Send a blank e-mail to
     * smarty-discussion-subscribe@googlegroups.com
     *
     * @link      http://www.smarty.net/
     * @copyright 2008 New Digital Group, Inc.
     * @author    Monte Ohrt <monte at ohrt dot com>
     * @author    Uwe Tews
     * @author    Rodney Rehm
     * @package   Smarty
     * @version   3.1.19
     */

    /**
     * define shorthand directory separator constant
     */
    if (!defined('DS')) {
        define('DS', DIRECTORY_SEPARATOR);
    }

    /**
     * set SMARTY_DIR to absolute path to Smarty library files.
     * Sets SMARTY_DIR only if user application has not already defined it.
     */
    if (!defined('SMARTY_DIR')) {
        define('SMARTY_DIR', dirname(__FILE__) . DS);
    }

    /**
     * set SMARTY_SYSPLUGINS_DIR to absolute path to Smarty internal plugins.
     * Sets SMARTY_SYSPLUGINS_DIR only if user application has not already defined it.
     */
    if (!defined('SMARTY_SYSPLUGINS_DIR')) {
        define('SMARTY_SYSPLUGINS_DIR', SMARTY_DIR . 'sysplugins' . DS);
    }
    if (!defined('SMARTY_PLUGINS_DIR')) {
        define('SMARTY_PLUGINS_DIR', SMARTY_DIR . 'plugins' . DS);
    }
    if (!defined('SMARTY_MBSTRING')) {
        define('SMARTY_MBSTRING', function_exists('mb_split'));
    }
    if (!defined('SMARTY_RESOURCE_CHAR_SET')) {
        // UTF-8 can only be done properly when mbstring is available!
        /**
         * @deprecated in favor of Smarty::$_CHARSET
         */
        define('SMARTY_RESOURCE_CHAR_SET', SMARTY_MBSTRING ? 'UTF-8' : 'ISO-8859-1');
    }
    if (!defined('SMARTY_RESOURCE_DATE_FORMAT')) {
        /**
         * @deprecated in favor of Smarty::$_DATE_FORMAT
         */
        define('SMARTY_RESOURCE_DATE_FORMAT', '%b %e, %Y');
    }

    /**
     * register the class autoloader
     */
    if (!defined('SMARTY_SPL_AUTOLOAD')) {
        define('SMARTY_SPL_AUTOLOAD', 0);
    }

    if (SMARTY_SPL_AUTOLOAD && set_include_path(get_include_path() . PATH_SEPARATOR . SMARTY_SYSPLUGINS_DIR) !== false) {
        $registeredAutoLoadFunctions = spl_autoload_functions();
        if (!isset($registeredAutoLoadFunctions['spl_autoload'])) {
            spl_autoload_register();
        }
    } else {
        spl_autoload_register('smartyAutoload');
    }

    /**
     * Load always needed external class files
     */
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_data.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_templatebase.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_template.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_resource.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_resource_file.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_cacheresource.php';
    include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_cacheresource_file.php';

    /**
     * This is the main Smarty class
     *
     * @package Smarty
     */
    class Smarty extends Smarty_Internal_TemplateBase
    {
        /**#@+
         * constant definitions
         */

        /**
         * smarty version
         */
        const SMARTY_VERSION = 'Smarty-3.1.19';

        /**
         * define variable scopes
         */
        const SCOPE_LOCAL = 0;
        const SCOPE_PARENT = 1;
        const SCOPE_ROOT = 2;
        const SCOPE_GLOBAL = 3;
        /**
         * define caching modes
         */
        const CACHING_OFF = 0;
        const CACHING_LIFETIME_CURRENT = 1;
        const CACHING_LIFETIME_SAVED = 2;
        /**
         * define constant for clearing cache files be saved expiration datees
         */
        const CLEAR_EXPIRED = - 1;

        /**
         * define compile check modes
         */
        const COMPILECHECK_OFF = 0;
        const COMPILECHECK_ON = 1;
        const COMPILECHECK_CACHEMISS = 2;
        /**
         * modes for handling of "<?php ... ?>" tags in templates.
         */
        const PHP_PASSTHRU = 0; //-> print tags as plain text
        const PHP_QUOTE = 1; //-> escape tags as entities
        const PHP_REMOVE = 2; //-> escape tags as entities
        const PHP_ALLOW = 3; //-> escape tags as entities
        /**
         * filter types
         */
        const FILTER_POST = 'post';
        const FILTER_PRE = 'pre';
        const FILTER_OUTPUT = 'output';
        const FILTER_VARIABLE = 'variable';
        /**
         * plugin types
         */
        const PLUGIN_FUNCTION = 'function';
        const PLUGIN_BLOCK = 'block';
        const PLUGIN_COMPILER = 'compiler';
        const PLUGIN_MODIFIER = 'modifier';
        const PLUGIN_MODIFIERCOMPILER = 'modifiercompiler';

        /**#@-*/

        /**
         * assigned global tpl vars
         */
        public static $global_tpl_vars = array();

        /**
         * error handler returned by set_error_hanlder() in Smarty::muteExpectedErrors()
         */
        public static $_previous_error_handler = null;
        /**
         * contains directories outside of SMARTY_DIR that are to be muted by muteExpectedErrors()
         */
        public static $_muted_directories = array();
        /**
         * Flag denoting if Multibyte String functions are available
         */
        public static $_MBSTRING = SMARTY_MBSTRING;
        /**
         * The character set to adhere to (e.g. "UTF-8")
         */
        public static $_CHARSET = SMARTY_RESOURCE_CHAR_SET;
        /**
         * The date format to be used internally
         * (accepts date() and strftime())
         */
        public static $_DATE_FORMAT = SMARTY_RESOURCE_DATE_FORMAT;
        /**
         * Flag denoting if PCRE should run in UTF-8 mode
         */
        public static $_UTF8_MODIFIER = 'u';

        /**
         * Flag denoting if operating system is windows
         */
        public static $_IS_WINDOWS = false;

        /**#@+
         * variables
         */

        /**
         * auto literal on delimiters with whitspace
         *
         * @var boolean
         */
        public $auto_literal = true;
        /**
         * display error on not assigned variables
         *
         * @var boolean
         */
        public $error_unassigned = false;
        /**
         * look up relative filepaths in include_path
         *
         * @var boolean
         */
        public $use_include_path = false;
        /**
         * template directory
         *
         * @var array
         */
        private $template_dir = array();
        /**
         * joined template directory string used in cache keys
         *
         * @var string
         */
        public $joined_template_dir = null;
        /**
         * joined config directory string used in cache keys
         *
         * @var string
         */
        public $joined_config_dir = null;
        /**
         * default template handler
         *
         * @var callable
         */
        public $default_template_handler_func = null;
        /**
         * default config handler
         *
         * @var callable
         */
        public $default_config_handler_func = null;
        /**
         * default plugin handler
         *
         * @var callable
         */
        public $default_plugin_handler_func = null;
        /**
         * compile directory
         *
         * @var string
         */
        private $compile_dir = null;
        /**
         * plugins directory
         *
         * @var array
         */
        private $plugins_dir = array();
        /**
         * cache directory
         *
         * @var string
         */
        private $cache_dir = null;
        /**
         * config directory
         *
         * @var array
         */
        private $config_dir = array();
        /**
         * force template compiling?
         *
         * @var boolean
         */
        public $force_compile = false;
        /**
         * check template for modifications?
         *
         * @var boolean
         */
        public $compile_check = true;
        /**
         * use sub dirs for compiled/cached files?
         *
         * @var boolean
         */
        public $use_sub_dirs = false;
        /**
         * allow ambiguous resources (that are made unique by the resource handler)
         *
         * @var boolean
         */
        public $allow_ambiguous_resources = false;
        /**
         * caching enabled
         *
         * @var boolean
         */
        public $caching = false;
        /**
         * merge compiled includes
         *
         * @var boolean
         */
        public $merge_compiled_includes = false;
        /**
         * template inheritance merge compiled includes
         *
         * @var boolean
         */
        public $inheritance_merge_compiled_includes = true;
        /**
         * cache lifetime in seconds
         *
         * @var integer
         */
        public $cache_lifetime = 3600;
        /**
         * force cache file creation
         *
         * @var boolean
         */
        public $force_cache = false;
        /**
         * Set this if you want different sets of cache files for the same
         * templates.
         *
         * @var string
         */
        public $cache_id = null;
        /**
         * Set this if you want different sets of compiled files for the same
         * templates.
         *
         * @var string
         */
        public $compile_id = null;
        /**
         * template left-delimiter
         *
         * @var string
         */
        public $left_delimiter = "{";
        /**
         * template right-delimiter
         *
         * @var string
         */
        public $right_delimiter = "}";
        /**#@+
         * security
         */
        /**
         * class name
         * This should be instance of Smarty_Security.
         *
         * @var string
         * @see Smarty_Security
         */
        public $security_class = 'Smarty_Security';
        /**
         * implementation of security class
         *
         * @var Smarty_Security
         */
        public $security_policy = null;
        /**
         * controls handling of PHP-blocks
         *
         * @var integer
         */
        public $php_handling = self::PHP_PASSTHRU;
        /**
         * controls if the php template file resource is allowed
         *
         * @var bool
         */
        public $allow_php_templates = false;
        /**
         * Should compiled-templates be prevented from being called directly?
         * {@internal
         * Currently used by Smarty_Internal_Template only.
         * }}
         *
         * @var boolean
         */
        public $direct_access_security = true;
        /**#@-*/
        /**
         * debug mode
         * Setting this to true enables the debug-console.
         *
         * @var boolean
         */
        public $debugging = false;
        /**
         * This determines if debugging is enable-able from the browser.
         * <ul>
         *  <li>NONE => no debugging control allowed</li>
         *  <li>URL => enable debugging when SMARTY_DEBUG is found in the URL.</li>
         * </ul>
         *
         * @var string
         */
        public $debugging_ctrl = 'NONE';
        /**
         * Name of debugging URL-param.
         * Only used when $debugging_ctrl is set to 'URL'.
         * The name of the URL-parameter that activates debugging.
         *
         * @var type
         */
        public $smarty_debug_id = 'SMARTY_DEBUG';
        /**
         * Path of debug template.
         *
         * @var string
         */
        public $debug_tpl = null;
        /**
         * When set, smarty uses this value as error_reporting-level.
         *
         * @var int
         */
        public $error_reporting = null;
        /**
         * Internal flag for getTags()
         *
         * @var boolean
         */
        public $get_used_tags = false;

        /**#@+
         * config var settings
         */

        /**
         * Controls whether variables with the same name overwrite each other.
         *
         * @var boolean
         */
        public $config_overwrite = true;
        /**
         * Controls whether config values of on/true/yes and off/false/no get converted to boolean.
         *
         * @var boolean
         */
        public $config_booleanize = true;
        /**
         * Controls whether hidden config sections/vars are read from the file.
         *
         * @var boolean
         */
        public $config_read_hidden = false;

        /**#@-*/

        /**#@+
         * resource locking
         */

        /**
         * locking concurrent compiles
         *
         * @var boolean
         */
        public $compile_locking = true;
        /**
         * Controls whether cache resources should emply locking mechanism
         *
         * @var boolean
         */
        public $cache_locking = false;
        /**
         * seconds to wait for acquiring a lock before ignoring the write lock
         *
         * @var float
         */
        public $locking_timeout = 10;

        /**#@-*/

        /**
         * global template functions
         *
         * @var array
         */
        public $template_functions = array();
        /**
         * resource type used if none given
         * Must be an valid key of $registered_resources.
         *
         * @var string
         */
        public $default_resource_type = 'file';
        /**
         * caching type
         * Must be an element of $cache_resource_types.
         *
         * @var string
         */
        public $caching_type = 'file';
        /**
         * internal config properties
         *
         * @var array
         */
        public $properties = array();
        /**
         * config type
         *
         * @var string
         */
        public $default_config_type = 'file';
        /**
         * cached template objects
         *
         * @var array
         */
        public $template_objects = array();
        /**
         * check If-Modified-Since headers
         *
         * @var boolean
         */
        public $cache_modified_check = false;
        /**
         * registered plugins
         *
         * @var array
         */
        public $registered_plugins = array();
        /**
         * plugin search order
         *
         * @var array
         */
        public $plugin_search_order = array('function', 'block', 'compiler', 'class');
        /**
         * registered objects
         *
         * @var array
         */
        public $registered_objects = array();
        /**
         * registered classes
         *
         * @var array
         */
        public $registered_classes = array();
        /**
         * registered filters
         *
         * @var array
         */
        public $registered_filters = array();
        /**
         * registered resources
         *
         * @var array
         */
        public $registered_resources = array();
        /**
         * resource handler cache
         *
         * @var array
         */
        public $_resource_handlers = array();
        /**
         * registered cache resources
         *
         * @var array
         */
        public $registered_cache_resources = array();
        /**
         * cache resource handler cache
         *
         * @var array
         */
        public $_cacheresource_handlers = array();
        /**
         * autoload filter
         *
         * @var array
         */
        public $autoload_filters = array();
        /**
         * default modifier
         *
         * @var array
         */
        public $default_modifiers = array();
        /**
         * autoescape variable output
         *
         * @var boolean
         */
        public $escape_html = false;
        /**
         * global internal smarty vars
         *
         * @var array
         */
        public static $_smarty_vars = array();
        /**
         * start time for execution time calculation
         *
         * @var int
         */
        public $start_time = 0;
        /**
         * default file permissions
         *
         * @var int
         */
        public $_file_perms = 0644;
        /**
         * default dir permissions
         *
         * @var int
         */
        public $_dir_perms = 0771;
        /**
         * block tag hierarchy
         *
         * @var array
         */
        public $_tag_stack = array();
        /**
         * self pointer to Smarty object
         *
         * @var Smarty
         */
        public $smarty;
        /**
         * required by the compiler for BC
         *
         * @var string
         */
        public $_current_file = null;
        /**
         * internal flag to enable parser debugging
         *
         * @var bool
         */
        public $_parserdebug = false;
        /**
         * Saved parameter of merged templates during compilation
         *
         * @var array
         */
        public $merged_templates_func = array();
        /**#@-*/

        /**
         * Initialize new Smarty object

         */
        public function __construct()
        {
            // selfpointer needed by some other class methods
            $this->smarty = $this;
            if (is_callable('mb_internal_encoding')) {
                mb_internal_encoding(Smarty::$_CHARSET);
            }
            $this->start_time = microtime(true);
            // set default dirs
            $this->setTemplateDir('.' . DS . 'templates' . DS)
                ->setCompileDir('.' . DS . 'templates_c' . DS)
                ->setPluginsDir(SMARTY_PLUGINS_DIR)
                ->setCacheDir('.' . DS . 'cache' . DS)
                ->setConfigDir('.' . DS . 'configs' . DS);

            $this->debug_tpl = 'file:' . dirname(__FILE__) . '/debug.tpl';
            if (isset($_SERVER['SCRIPT_NAME'])) {
                $this->assignGlobal('SCRIPT_NAME', $_SERVER['SCRIPT_NAME']);
            }
        }

        /**
         * Class destructor
         */
        public function __destruct()
        {
            // intentionally left blank
        }

        /**
         * <<magic>> set selfpointer on cloned object
         */
        public function __clone()
        {
            $this->smarty = $this;
        }

        /**
         * <<magic>> Generic getter.
         * Calls the appropriate getter function.
         * Issues an E_USER_NOTICE if no valid getter is found.
         *
         * @param  string $name property name
         *
         * @return mixed
         */
        public function __get($name)
        {
            $allowed = array(
                'template_dir' => 'getTemplateDir',
                'config_dir'   => 'getConfigDir',
                'plugins_dir'  => 'getPluginsDir',
                'compile_dir'  => 'getCompileDir',
                'cache_dir'    => 'getCacheDir',
            );

            if (isset($allowed[$name])) {
                return $this->{$allowed[$name]}();
            } else {
                trigger_error('Undefined property: ' . get_class($this) . '::$' . $name, E_USER_NOTICE);
            }
        }

        /**
         * <<magic>> Generic setter.
         * Calls the appropriate setter function.
         * Issues an E_USER_NOTICE if no valid setter is found.
         *
         * @param string $name  property name
         * @param mixed  $value parameter passed to setter
         */
        public function __set($name, $value)
        {
            $allowed = array(
                'template_dir' => 'setTemplateDir',
                'config_dir'   => 'setConfigDir',
                'plugins_dir'  => 'setPluginsDir',
                'compile_dir'  => 'setCompileDir',
                'cache_dir'    => 'setCacheDir',
            );

            if (isset($allowed[$name])) {
                $this->{$allowed[$name]}($value);
            } else {
                trigger_error('Undefined property: ' . get_class($this) . '::$' . $name, E_USER_NOTICE);
            }
        }

        /**
         * Check if a template resource exists
         *
         * @param  string $resource_name template name
         *
         * @return boolean status
         */
        public function templateExists($resource_name)
        {
            // create template object
            $save = $this->template_objects;
            $tpl = new $this->template_class($resource_name, $this);
            // check if it does exists
            $result = $tpl->source->exists;
            $this->template_objects = $save;

            return $result;
        }

        /**
         * Returns a single or all global  variables
         *
         * @param  string $varname variable name or null
         *
         * @return string variable value or or array of variables
         */
        public function getGlobal($varname = null)
        {
            if (isset($varname)) {
                if (isset(self::$global_tpl_vars[$varname])) {
                    return self::$global_tpl_vars[$varname]->value;
                } else {
                    return '';
                }
            } else {
                $_result = array();
                foreach (self::$global_tpl_vars AS $key => $var) {
                    $_result[$key] = $var->value;
                }

                return $_result;
            }
        }

        /**
         * Empty cache folder
         *
         * @param  integer $exp_time expiration time
         * @param  string  $type     resource type
         *
         * @return integer number of cache files deleted
         */
        public function clearAllCache($exp_time = null, $type = null)
        {
            // load cache resource and call clearAll
            $_cache_resource = Smarty_CacheResource::load($this, $type);
            Smarty_CacheResource::invalidLoadedCache($this);

            return $_cache_resource->clearAll($this, $exp_time);
        }

        /**
         * Empty cache for a specific template
         *
         * @param  string  $template_name template name
         * @param  string  $cache_id      cache id
         * @param  string  $compile_id    compile id
         * @param  integer $exp_time      expiration time
         * @param  string  $type          resource type
         *
         * @return integer number of cache files deleted
         */
        public function clearCache($template_name, $cache_id = null, $compile_id = null, $exp_time = null, $type = null)
        {
            // load cache resource and call clear
            $_cache_resource = Smarty_CacheResource::load($this, $type);
            Smarty_CacheResource::invalidLoadedCache($this);

            return $_cache_resource->clear($this, $template_name, $cache_id, $compile_id, $exp_time);
        }

        /**
         * Loads security class and enables security
         *
         * @param  string|Smarty_Security $security_class if a string is used, it must be class-name
         *
         * @return Smarty                 current Smarty instance for chaining
         * @throws SmartyException        when an invalid class name is provided
         */
        public function enableSecurity($security_class = null)
        {
            if ($security_class instanceof Smarty_Security) {
                $this->security_policy = $security_class;

                return $this;
            } elseif (is_object($security_class)) {
                throw new SmartyException("Class '" . get_class($security_class) . "' must extend Smarty_Security.");
            }
            if ($security_class == null) {
                $security_class = $this->security_class;
            }
            if (!class_exists($security_class)) {
                throw new SmartyException("Security class '$security_class' is not defined");
            } elseif ($security_class !== 'Smarty_Security' && !is_subclass_of($security_class, 'Smarty_Security')) {
                throw new SmartyException("Class '$security_class' must extend Smarty_Security.");
            } else {
                $this->security_policy = new $security_class($this);
            }

            return $this;
        }

        /**
         * Disable security
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function disableSecurity()
        {
            $this->security_policy = null;

            return $this;
        }

        /**
         * Set template directory
         *
         * @param  string|array $template_dir directory(s) of template sources
         *
         * @return Smarty       current Smarty instance for chaining
         */
        public function setTemplateDir($template_dir)
        {
            $this->template_dir = array();
            foreach ((array) $template_dir as $k => $v) {
                $this->template_dir[$k] = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($v, '/\')) . DS;
            }

            $this->joined_template_dir = join(DIRECTORY_SEPARATOR, $this->template_dir);

            return $this;
        }

        /**
         * Add template directory(s)
         *
         * @param  string|array $template_dir directory(s) of template sources
         * @param  string       $key          of the array element to assign the template dir to
         *
         * @return Smarty          current Smarty instance for chaining
         * @throws SmartyException when the given template directory is not valid
         */
        public function addTemplateDir($template_dir, $key = null)
        {
            // make sure we're dealing with an array
            $this->template_dir = (array) $this->template_dir;

            if (is_array($template_dir)) {
                foreach ($template_dir as $k => $v) {
                    $v = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($v, '/\')) . DS;
                    if (is_int($k)) {
                        // indexes are not merged but appended
                        $this->template_dir[] = $v;
                    } else {
                        // string indexes are overridden
                        $this->template_dir[$k] = $v;
                    }
                }
            } else {
                $v = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($template_dir, '/\')) . DS;
                if ($key !== null) {
                    // override directory at specified index
                    $this->template_dir[$key] = $v;
                } else {
                    // append new directory
                    $this->template_dir[] = $v;
                }
            }
            $this->joined_template_dir = join(DIRECTORY_SEPARATOR, $this->template_dir);

            return $this;
        }

        /**
         * Get template directories
         *
         * @param mixed $index index of directory to get, null to get all
         *
         * @return array|string list of template directories, or directory of $index
         */
        public function getTemplateDir($index = null)
        {
            if ($index !== null) {
                return isset($this->template_dir[$index]) ? $this->template_dir[$index] : null;
            }

            return (array) $this->template_dir;
        }

        /**
         * Set config directory
         *
         * @param $config_dir
         *
         * @return Smarty       current Smarty instance for chaining
         */
        public function setConfigDir($config_dir)
        {
            $this->config_dir = array();
            foreach ((array) $config_dir as $k => $v) {
                $this->config_dir[$k] = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($v, '/\')) . DS;
            }

            $this->joined_config_dir = join(DIRECTORY_SEPARATOR, $this->config_dir);

            return $this;
        }

        /**
         * Add config directory(s)
         *
         * @param string|array        $config_dir directory(s) of config sources
         * @param mixed $key        key of the array element to assign the config dir to
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function addConfigDir($config_dir, $key = null)
        {
            // make sure we're dealing with an array
            $this->config_dir = (array) $this->config_dir;

            if (is_array($config_dir)) {
                foreach ($config_dir as $k => $v) {
                    $v = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($v, '/\')) . DS;
                    if (is_int($k)) {
                        // indexes are not merged but appended
                        $this->config_dir[] = $v;
                    } else {
                        // string indexes are overridden
                        $this->config_dir[$k] = $v;
                    }
                }
            } else {
                $v = preg_replace('#(w+)(/|\\){1,}#', '$1$2', rtrim($config_dir, '/\')) . DS;
                if ($key !== null) {
                    // override directory at specified index
                    $this->config_dir[$key] = rtrim($v, '/\') . DS;
                } else {
                    // append new directory
                    $this->config_dir[] = rtrim($v, '/\') . DS;
                }
            }

            $this->joined_config_dir = join(DIRECTORY_SEPARATOR, $this->config_dir);

            return $this;
        }

        /**
         * Get config directory
         *
         * @param mixed $index index of directory to get, null to get all
         *
         * @return array|string configuration directory
         */
        public function getConfigDir($index = null)
        {
            if ($index !== null) {
                return isset($this->config_dir[$index]) ? $this->config_dir[$index] : null;
            }

            return (array) $this->config_dir;
        }

        /**
         * Set plugins directory
         *
         * @param  string|array $plugins_dir directory(s) of plugins
         *
         * @return Smarty       current Smarty instance for chaining
         */
        public function setPluginsDir($plugins_dir)
        {
            $this->plugins_dir = array();
            foreach ((array) $plugins_dir as $k => $v) {
                $this->plugins_dir[$k] = rtrim($v, '/\') . DS;
            }

            return $this;
        }

        /**
         * Adds directory of plugin files
         *
         * @param $plugins_dir
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function addPluginsDir($plugins_dir)
        {
            // make sure we're dealing with an array
            $this->plugins_dir = (array) $this->plugins_dir;

            if (is_array($plugins_dir)) {
                foreach ($plugins_dir as $k => $v) {
                    if (is_int($k)) {
                        // indexes are not merged but appended
                        $this->plugins_dir[] = rtrim($v, '/\') . DS;
                    } else {
                        // string indexes are overridden
                        $this->plugins_dir[$k] = rtrim($v, '/\') . DS;
                    }
                }
            } else {
                // append new directory
                $this->plugins_dir[] = rtrim($plugins_dir, '/\') . DS;
            }

            $this->plugins_dir = array_unique($this->plugins_dir);

            return $this;
        }

        /**
         * Get plugin directories
         *
         * @return array list of plugin directories
         */
        public function getPluginsDir()
        {
            return (array) $this->plugins_dir;
        }

        /**
         * Set compile directory
         *
         * @param  string $compile_dir directory to store compiled templates in
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function setCompileDir($compile_dir)
        {
            $this->compile_dir = rtrim($compile_dir, '/\') . DS;
            if (!isset(Smarty::$_muted_directories[$this->compile_dir])) {
                Smarty::$_muted_directories[$this->compile_dir] = null;
            }

            return $this;
        }

        /**
         * Get compiled directory
         *
         * @return string path to compiled templates
         */
        public function getCompileDir()
        {
            return $this->compile_dir;
        }

        /**
         * Set cache directory
         *
         * @param  string $cache_dir directory to store cached templates in
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function setCacheDir($cache_dir)
        {
            $this->cache_dir = rtrim($cache_dir, '/\') . DS;
            if (!isset(Smarty::$_muted_directories[$this->cache_dir])) {
                Smarty::$_muted_directories[$this->cache_dir] = null;
            }

            return $this;
        }

        /**
         * Get cache directory
         *
         * @return string path of cache directory
         */
        public function getCacheDir()
        {
            return $this->cache_dir;
        }

        /**
         * Set default modifiers
         *
         * @param  array|string $modifiers modifier or list of modifiers to set
         *
         * @return Smarty       current Smarty instance for chaining
         */
        public function setDefaultModifiers($modifiers)
        {
            $this->default_modifiers = (array) $modifiers;

            return $this;
        }

        /**
         * Add default modifiers
         *
         * @param  array|string $modifiers modifier or list of modifiers to add
         *
         * @return Smarty       current Smarty instance for chaining
         */
        public function addDefaultModifiers($modifiers)
        {
            if (is_array($modifiers)) {
                $this->default_modifiers = array_merge($this->default_modifiers, $modifiers);
            } else {
                $this->default_modifiers[] = $modifiers;
            }

            return $this;
        }

        /**
         * Get default modifiers
         *
         * @return array list of default modifiers
         */
        public function getDefaultModifiers()
        {
            return $this->default_modifiers;
        }

        /**
         * Set autoload filters
         *
         * @param  array  $filters filters to load automatically
         * @param  string $type    "pre", "output", … specify the filter type to set. Defaults to none treating $filters' keys as the appropriate types
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function setAutoloadFilters($filters, $type = null)
        {
            if ($type !== null) {
                $this->autoload_filters[$type] = (array) $filters;
            } else {
                $this->autoload_filters = (array) $filters;
            }

            return $this;
        }

        /**
         * Add autoload filters
         *
         * @param  array  $filters filters to load automatically
         * @param  string $type    "pre", "output", … specify the filter type to set. Defaults to none treating $filters' keys as the appropriate types
         *
         * @return Smarty current Smarty instance for chaining
         */
        public function addAutoloadFilters($filters, $type = null)
        {
            if ($type !== null) {
                if (!empty($this->autoload_filters[$type])) {
                    $this->autoload_filters[$type] = array_merge($this->autoload_filters[$type], (array) $filters);
                } else {
                    $this->autoload_filters[$type] = (array) $filters;
                }
            } else {
                foreach ((array) $filters as $key => $value) {
                    if (!empty($this->autoload_filters[$key])) {
                        $this->autoload_filters[$key] = array_merge($this->autoload_filters[$key], (array) $value);
                    } else {
                        $this->autoload_filters[$key] = (array) $value;
                    }
                }
            }

            return $this;
        }

        /**
         * Get autoload filters
         *
         * @param  string $type type of filter to get autoloads for. Defaults to all autoload filters
         *
         * @return array  array( 'type1' => array( 'filter1', 'filter2', … ) ) or array( 'filter1', 'filter2', …) if $type was specified
         */
        public function getAutoloadFilters($type = null)
        {
            if ($type !== null) {
                return isset($this->autoload_filters[$type]) ? $this->autoload_filters[$type] : array();
            }

            return $this->autoload_filters;
        }

        /**
         * return name of debugging template
         *
         * @return string
         */
        public function getDebugTemplate()
        {
            return $this->debug_tpl;
        }

        /**
         * set the debug template
         *
         * @param  string $tpl_name
         *
         * @return Smarty          current Smarty instance for chaining
         * @throws SmartyException if file is not readable
         */
        public function setDebugTemplate($tpl_name)
        {
            if (!is_readable($tpl_name)) {
                throw new SmartyException("Unknown file '{$tpl_name}'");
            }
            $this->debug_tpl = $tpl_name;

            return $this;
        }

        /**
         * creates a template object
         *
         * @param  string  $template   the resource handle of the template file
         * @param  mixed   $cache_id   cache id to be used with this template
         * @param  mixed   $compile_id compile id to be used with this template
         * @param  object  $parent     next higher level of Smarty variables
         * @param  boolean $do_clone   flag is Smarty object shall be cloned
         *
         * @return object  template object
         */
        public function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null, $do_clone = true)
        {
            if ($cache_id !== null && (is_object($cache_id) || is_array($cache_id))) {
                $parent = $cache_id;
                $cache_id = null;
            }
            if ($parent !== null && is_array($parent)) {
                $data = $parent;
                $parent = null;
            } else {
                $data = null;
            }
            // default to cache_id and compile_id of Smarty object
            $cache_id = $cache_id === null ? $this->cache_id : $cache_id;
            $compile_id = $compile_id === null ? $this->compile_id : $compile_id;
            // already in template cache?
            if ($this->allow_ambiguous_resources) {
                $_templateId = Smarty_Resource::getUniqueTemplateName($this, $template) . $cache_id . $compile_id;
            } else {
                $_templateId = $this->joined_template_dir . '#' . $template . $cache_id . $compile_id;
            }
            if (isset($_templateId[150])) {
                $_templateId = sha1($_templateId);
            }
            if ($do_clone) {
                if (isset($this->template_objects[$_templateId])) {
                    // return cached template object
                    $tpl = clone $this->template_objects[$_templateId];
                    $tpl->smarty = clone $tpl->smarty;
                    $tpl->parent = $parent;
                    $tpl->tpl_vars = array();
                    $tpl->config_vars = array();
                } else {
                    $tpl = new $this->template_class($template, clone $this, $parent, $cache_id, $compile_id);
                }
            } else {
                if (isset($this->template_objects[$_templateId])) {
                    // return cached template object
                    $tpl = $this->template_objects[$_templateId];
                    $tpl->parent = $parent;
                    $tpl->tpl_vars = array();
                    $tpl->config_vars = array();
                } else {
                    $tpl = new $this->template_class($template, $this, $parent, $cache_id, $compile_id);
                }
            }
            // fill data if present
            if (!empty($data) && is_array($data)) {
                // set up variable values
                foreach ($data as $_key => $_val) {
                    $tpl->tpl_vars[$_key] = new Smarty_variable($_val);
                }
            }

            return $tpl;
        }

        /**
         * Takes unknown classes and loads plugin files for them
         * class name format: Smarty_PluginType_PluginName
         * plugin filename format: plugintype.pluginname.php
         *
         * @param  string $plugin_name class plugin name to load
         * @param  bool   $check       check if already loaded
         *
         * @throws SmartyException
         * @return string |boolean filepath of loaded file or false
         */
        public function loadPlugin($plugin_name, $check = true)
        {
            // if function or class exists, exit silently (already loaded)
            if ($check && (is_callable($plugin_name) || class_exists($plugin_name, false))) {
                return true;
            }
            // Plugin name is expected to be: Smarty_[Type]_[Name]
            $_name_parts = explode('_', $plugin_name, 3);
            // class name must have three parts to be valid plugin
            // count($_name_parts) < 3 === !isset($_name_parts[2])
            if (!isset($_name_parts[2]) || strtolower($_name_parts[0]) !== 'smarty') {
                throw new SmartyException("plugin {$plugin_name} is not a valid name format");
            }
            // if type is "internal", get plugin from sysplugins
            if (strtolower($_name_parts[1]) == 'internal') {
                $file = SMARTY_SYSPLUGINS_DIR . strtolower($plugin_name) . '.php';
                if (file_exists($file)) {
                    require_once($file);

                    return $file;
                } else {
                    return false;
                }
            }
            // plugin filename is expected to be: [type].[name].php
            $_plugin_filename = "{$_name_parts[1]}.{$_name_parts[2]}.php";

            $_stream_resolve_include_path = function_exists('stream_resolve_include_path');

            // loop through plugin dirs and find the plugin
            foreach ($this->getPluginsDir() as $_plugin_dir) {
                $names = array(
                    $_plugin_dir . $_plugin_filename,
                    $_plugin_dir . strtolower($_plugin_filename),
                );
                foreach ($names as $file) {
                    if (file_exists($file)) {
                        require_once($file);

                        return $file;
                    }
                    if ($this->use_include_path && !preg_match('/^([/\\]|[a-zA-Z]:[/\\])/', $_plugin_dir)) {
                        // try PHP include_path
                        if ($_stream_resolve_include_path) {
                            $file = stream_resolve_include_path($file);
                        } else {
                            $file = Smarty_Internal_Get_Include_Path::getIncludePath($file);
                        }

                        if ($file !== false) {
                            require_once($file);

                            return $file;
                        }
                    }
                }
            }
            // no plugin loaded
            return false;
        }

        /**
         * Compile all template files
         *
         * @param  string $extension     file extension
         * @param  bool   $force_compile force all to recompile
         * @param  int    $time_limit
         * @param  int    $max_errors
         *
         * @return integer number of template files recompiled
         */
        public function compileAllTemplates($extension = '.tpl', $force_compile = false, $time_limit = 0, $max_errors = null)
        {
            return Smarty_Internal_Utility::compileAllTemplates($extension, $force_compile, $time_limit, $max_errors, $this);
        }

        /**
         * Compile all config files
         *
         * @param  string $extension     file extension
         * @param  bool   $force_compile force all to recompile
         * @param  int    $time_limit
         * @param  int    $max_errors
         *
         * @return integer number of template files recompiled
         */
        public function compileAllConfig($extension = '.conf', $force_compile = false, $time_limit = 0, $max_errors = null)
        {
            return Smarty_Internal_Utility::compileAllConfig($extension, $force_compile, $time_limit, $max_errors, $this);
        }

        /**
         * Delete compiled template file
         *
         * @param  string  $resource_name template name
         * @param  string  $compile_id    compile id
         * @param  integer $exp_time      expiration time
         *
         * @return integer number of template files deleted
         */
        public function clearCompiledTemplate($resource_name = null, $compile_id = null, $exp_time = null)
        {
            return Smarty_Internal_Utility::clearCompiledTemplate($resource_name, $compile_id, $exp_time, $this);
        }

        /**
         * Return array of tag/attributes of all tags used by an template
         *
         * @param Smarty_Internal_Template $template
         *
         * @return array  of tag/attributes
         */
        public function getTags(Smarty_Internal_Template $template)
        {
            return Smarty_Internal_Utility::getTags($template);
        }

        /**
         * Run installation test
         *
         * @param  array $errors Array to write errors into, rather than outputting them
         *
         * @return boolean true if setup is fine, false if something is wrong
         */
        public function testInstall(&$errors = null)
        {
            return Smarty_Internal_Utility::testInstall($this, $errors);
        }

        /**
         * Error Handler to mute expected messages
         *
         * @link http://php.net/set_error_handler
         *
         * @param  integer $errno Error level
         * @param          $errstr
         * @param          $errfile
         * @param          $errline
         * @param          $errcontext
         *
         * @return boolean
         */
        public static function mutingErrorHandler($errno, $errstr, $errfile, $errline, $errcontext)
        {
            $_is_muted_directory = false;

            // add the SMARTY_DIR to the list of muted directories
            if (!isset(Smarty::$_muted_directories[SMARTY_DIR])) {
                $smarty_dir = realpath(SMARTY_DIR);
                if ($smarty_dir !== false) {
                    Smarty::$_muted_directories[SMARTY_DIR] = array(
                        'file'   => $smarty_dir,
                        'length' => strlen($smarty_dir),
                    );
                }
            }

            // walk the muted directories and test against $errfile
            foreach (Smarty::$_muted_directories as $key => &$dir) {
                if (!$dir) {
                    // resolve directory and length for speedy comparisons
                    $file = realpath($key);
                    if ($file === false) {
                        // this directory does not exist, remove and skip it
                        unset(Smarty::$_muted_directories[$key]);
                        continue;
                    }
                    $dir = array(
                        'file'   => $file,
                        'length' => strlen($file),
                    );
                }
                if (!strncmp($errfile, $dir['file'], $dir['length'])) {
                    $_is_muted_directory = true;
                    break;
                }
            }

            // pass to next error handler if this error did not occur inside SMARTY_DIR
            // or the error was within smarty but masked to be ignored
            if (!$_is_muted_directory || ($errno && $errno & error_reporting())) {
                if (Smarty::$_previous_error_handler) {
                    return call_user_func(Smarty::$_previous_error_handler, $errno, $errstr, $errfile, $errline, $errcontext);
                } else {
                    return false;
                }
            }
        }

        /**
         * Enable error handler to mute expected messages
         *
         * @return void
         */
        public static function muteExpectedErrors()
        {
            /*
                error muting is done because some people implemented custom error_handlers using
                http://php.net/set_error_handler and for some reason did not understand the following paragraph:

                    It is important to remember that the standard PHP error handler is completely bypassed for the
                    error types specified by error_types unless the callback function returns FALSE.
                    error_reporting() settings will have no effect and your error handler will be called regardless -
                    however you are still able to read the current value of error_reporting and act appropriately.
                    Of particular note is that this value will be 0 if the statement that caused the error was
                    prepended by the @ error-control operator.

                Smarty deliberately uses @filemtime() over file_exists() and filemtime() in some places. Reasons include
                    - @filemtime() is almost twice as fast as using an additional file_exists()
                    - between file_exists() and filemtime() a possible race condition is opened,
                      which does not exist using the simple @filemtime() approach.
            */
            $error_handler = array('Smarty', 'mutingErrorHandler');
            $previous = set_error_handler($error_handler);

            // avoid dead loops
            if ($previous !== $error_handler) {
                Smarty::$_previous_error_handler = $previous;
            }
        }

        /**
         * Disable error handler muting expected messages
         *
         * @return void
         */
        public static function unmuteExpectedErrors()
        {
            restore_error_handler();
        }
    }

    // Check if we're running on windows
    Smarty::$_IS_WINDOWS = strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';

    // let PCRE (preg_*) treat strings as ISO-8859-1 if we're not dealing with UTF-8
    if (Smarty::$_CHARSET !== 'UTF-8') {
        Smarty::$_UTF8_MODIFIER = '';
    }

    /**
     * Smarty exception class
     *
     * @package Smarty
     */
    class SmartyException extends Exception
    {
        public static $escape = false;

        public function __toString()
        {
            return ' --> Smarty: ' . (self::$escape ? htmlentities($this->message) : $this->message) . ' <-- ';
        }
    }

    /**
     * Smarty compiler exception class
     *
     * @package Smarty
     */
    class SmartyCompilerException extends SmartyException
    {
        public function __toString()
        {
            return ' --> Smarty Compiler: ' . $this->message . ' <-- ';
        }

        /**
         * The line number of the template error
         *
         * @type int|null
         */
        public $line = null;
        /**
         * The template source snippet relating to the error
         *
         * @type string|null
         */
        public $source = null;
        /**
         * The raw text of the error message
         *
         * @type string|null
         */
        public $desc = null;
        /**
         * The resource identifier or template name
         *
         * @type string|null
         */
        public $template = null;
    }

    /**
     * Autoloader
     */
    function smartyAutoload($class)
    {
        $_class = strtolower($class);
        static $_classes = array(
            'smarty_config_source'               => true,
            'smarty_config_compiled'             => true,
            'smarty_security'                    => true,
            'smarty_cacheresource'               => true,
            'smarty_cacheresource_custom'        => true,
            'smarty_cacheresource_keyvaluestore' => true,
            'smarty_resource'                    => true,
            'smarty_resource_custom'             => true,
            'smarty_resource_uncompiled'         => true,
            'smarty_resource_recompiled'         => true,
        );

        if (!strncmp($_class, 'smarty_internal_', 16) || isset($_classes[$_class])) {
            include SMARTY_SYSPLUGINS_DIR . $_class . '.php';
        }
    }


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  • 原文地址:https://www.cnblogs.com/shaohuixia/p/5427189.html
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