GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
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Current File : /opt/cloudlinux/alt-php55/root/usr/share/pear/Symfony/Component/Templating//PhpEngine.php
<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Templating;

use Symfony\Component\Templating\Storage\Storage;
use Symfony\Component\Templating\Storage\FileStorage;
use Symfony\Component\Templating\Storage\StringStorage;
use Symfony\Component\Templating\Helper\HelperInterface;
use Symfony\Component\Templating\Loader\LoaderInterface;

if (!defined('ENT_SUBSTITUTE')) {
    define('ENT_SUBSTITUTE', 8);
}

/**
 * PhpEngine is an engine able to render PHP templates.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 *
 * @api
 */
class PhpEngine implements EngineInterface, \ArrayAccess
{
    protected $loader;
    protected $current;
    protected $helpers = array();
    protected $parents = array();
    protected $stack = array();
    protected $charset = 'UTF-8';
    protected $cache = array();
    protected $escapers = array();
    protected static $escaperCache = array();
    protected $globals = array();
    protected $parser;

    private $evalTemplate;
    private $evalParameters;

    /**
     * Constructor.
     *
     * @param TemplateNameParserInterface $parser  A TemplateNameParserInterface instance
     * @param LoaderInterface             $loader  A loader instance
     * @param HelperInterface[]           $helpers An array of helper instances
     */
    public function __construct(TemplateNameParserInterface $parser, LoaderInterface $loader, array $helpers = array())
    {
        $this->parser  = $parser;
        $this->loader  = $loader;

        $this->addHelpers($helpers);

        $this->initializeEscapers();
        foreach ($this->escapers as $context => $escaper) {
            $this->setEscaper($context, $escaper);
        }
    }

    /**
     * {@inheritdoc}
     *
     * @throws \InvalidArgumentException if the template does not exist
     *
     * @api
     */
    public function render($name, array $parameters = array())
    {
        $storage = $this->load($name);
        $key = hash('sha256', serialize($storage));
        $this->current = $key;
        $this->parents[$key] = null;

        // attach the global variables
        $parameters = array_replace($this->getGlobals(), $parameters);
        // render
        if (false === $content = $this->evaluate($storage, $parameters)) {
            throw new \RuntimeException(sprintf('The template "%s" cannot be rendered.', $this->parser->parse($name)));
        }

        // decorator
        if ($this->parents[$key]) {
            $slots = $this->get('slots');
            $this->stack[] = $slots->get('_content');
            $slots->set('_content', $content);

            $content = $this->render($this->parents[$key], $parameters);

            $slots->set('_content', array_pop($this->stack));
        }

        return $content;
    }

    /**
     * {@inheritdoc}
     *
     * @api
     */
    public function exists($name)
    {
        try {
            $this->load($name);
        } catch (\InvalidArgumentException $e) {
            return false;
        }

        return true;
    }

    /**
     * {@inheritdoc}
     *
     * @api
     */
    public function supports($name)
    {
        $template = $this->parser->parse($name);

        return 'php' === $template->get('engine');
    }

    /**
     * Evaluates a template.
     *
     * @param Storage $template   The template to render
     * @param array   $parameters An array of parameters to pass to the template
     *
     * @return string|false The evaluated template, or false if the engine is unable to render the template
     *
     * @throws \InvalidArgumentException
     */
    protected function evaluate(Storage $template, array $parameters = array())
    {
        $this->evalTemplate = $template;
        $this->evalParameters = $parameters;
        unset($template, $parameters);

        if (isset($this->evalParameters['this'])) {
            throw new \InvalidArgumentException('Invalid parameter (this)');
        }
        if (isset($this->evalParameters['view'])) {
            throw new \InvalidArgumentException('Invalid parameter (view)');
        }

        $view = $this;
        if ($this->evalTemplate instanceof FileStorage) {
            extract($this->evalParameters, EXTR_SKIP);
            $this->evalParameters = null;

            ob_start();
            require $this->evalTemplate;

            $this->evalTemplate = null;

            return ob_get_clean();
        } elseif ($this->evalTemplate instanceof StringStorage) {
            extract($this->evalParameters, EXTR_SKIP);
            $this->evalParameters = null;

            ob_start();
            eval('; ?>'.$this->evalTemplate.'<?php ;');

            $this->evalTemplate = null;

            return ob_get_clean();
        }

        return false;
    }

    /**
     * Gets a helper value.
     *
     * @param string $name The helper name
     *
     * @return HelperInterface The helper value
     *
     * @throws \InvalidArgumentException if the helper is not defined
     *
     * @api
     */
    public function offsetGet($name)
    {
        return $this->get($name);
    }

    /**
     * Returns true if the helper is defined.
     *
     * @param string $name The helper name
     *
     * @return Boolean true if the helper is defined, false otherwise
     *
     * @api
     */
    public function offsetExists($name)
    {
        return isset($this->helpers[$name]);
    }

    /**
     * Sets a helper.
     *
     * @param HelperInterface $name  The helper instance
     * @param string          $value An alias
     *
     * @api
     */
    public function offsetSet($name, $value)
    {
        $this->set($name, $value);
    }

    /**
     * Removes a helper.
     *
     * @param string $name The helper name
     *
     * @throws \LogicException
     *
     * @api
     */
    public function offsetUnset($name)
    {
        throw new \LogicException(sprintf('You can\'t unset a helper (%s).', $name));
    }

    /**
     * Adds some helpers.
     *
     * @param HelperInterface[] $helpers An array of helper
     *
     * @api
     */
    public function addHelpers(array $helpers)
    {
        foreach ($helpers as $alias => $helper) {
            $this->set($helper, is_int($alias) ? null : $alias);
        }
    }

    /**
     * Sets the helpers.
     *
     * @param HelperInterface[] $helpers An array of helper
     *
     * @api
     */
    public function setHelpers(array $helpers)
    {
        $this->helpers = array();
        $this->addHelpers($helpers);
    }

    /**
     * Sets a helper.
     *
     * @param HelperInterface $helper The helper instance
     * @param string          $alias  An alias
     *
     * @api
     */
    public function set(HelperInterface $helper, $alias = null)
    {
        $this->helpers[$helper->getName()] = $helper;
        if (null !== $alias) {
            $this->helpers[$alias] = $helper;
        }

        $helper->setCharset($this->charset);
    }

    /**
     * Returns true if the helper if defined.
     *
     * @param string $name The helper name
     *
     * @return Boolean true if the helper is defined, false otherwise
     *
     * @api
     */
    public function has($name)
    {
        return isset($this->helpers[$name]);
    }

    /**
     * Gets a helper value.
     *
     * @param string $name The helper name
     *
     * @return HelperInterface The helper instance
     *
     * @throws \InvalidArgumentException if the helper is not defined
     *
     * @api
     */
    public function get($name)
    {
        if (!isset($this->helpers[$name])) {
            throw new \InvalidArgumentException(sprintf('The helper "%s" is not defined.', $name));
        }

        return $this->helpers[$name];
    }

    /**
     * Decorates the current template with another one.
     *
     * @param string $template The decorator logical name
     *
     * @api
     */
    public function extend($template)
    {
        $this->parents[$this->current] = $template;
    }

    /**
     * Escapes a string by using the current charset.
     *
     * @param mixed  $value   A variable to escape
     * @param string $context The context name
     *
     * @return string The escaped value
     *
     * @api
     */
    public function escape($value, $context = 'html')
    {
        if (is_numeric($value)) {
            return $value;
        }

        // If we deal with a scalar value, we can cache the result to increase
        // the performance when the same value is escaped multiple times (e.g. loops)
        if (is_scalar($value)) {
            if (!isset(self::$escaperCache[$context][$value])) {
                self::$escaperCache[$context][$value] = call_user_func($this->getEscaper($context), $value);
            }

            return self::$escaperCache[$context][$value];
        }

        return call_user_func($this->getEscaper($context), $value);
    }

    /**
     * Sets the charset to use.
     *
     * @param string $charset The charset
     *
     * @api
     */
    public function setCharset($charset)
    {
        $this->charset = $charset;
    }

    /**
     * Gets the current charset.
     *
     * @return string The current charset
     *
     * @api
     */
    public function getCharset()
    {
        return $this->charset;
    }

    /**
     * Adds an escaper for the given context.
     *
     * @param string $context The escaper context (html, js, ...)
     * @param mixed  $escaper A PHP callable
     *
     * @api
     */
    public function setEscaper($context, $escaper)
    {
        $this->escapers[$context] = $escaper;
        self::$escaperCache[$context] = array();
    }

    /**
     * Gets an escaper for a given context.
     *
     * @param string $context The context name
     *
     * @return mixed  $escaper A PHP callable
     *
     * @throws \InvalidArgumentException
     *
     * @api
     */
    public function getEscaper($context)
    {
        if (!isset($this->escapers[$context])) {
            throw new \InvalidArgumentException(sprintf('No registered escaper for context "%s".', $context));
        }

        return $this->escapers[$context];
    }

    /**
     * @param string $name
     * @param mixed  $value
     *
     * @api
     */
    public function addGlobal($name, $value)
    {
        $this->globals[$name] = $value;
    }

    /**
     * Returns the assigned globals.
     *
     * @return array
     *
     * @api
     */
    public function getGlobals()
    {
        return $this->globals;
    }

    /**
     * Initializes the built-in escapers.
     *
     * Each function specifies a way for applying a transformation to a string
     * passed to it. The purpose is for the string to be "escaped" so it is
     * suitable for the format it is being displayed in.
     *
     * For example, the string: "It's required that you enter a username & password.\n"
     * If this were to be displayed as HTML it would be sensible to turn the
     * ampersand into '&amp;' and the apostrophe into '&aps;'. However if it were
     * going to be used as a string in JavaScript to be displayed in an alert box
     * it would be right to leave the string as-is, but c-escape the apostrophe and
     * the new line.
     *
     * For each function there is a define to avoid problems with strings being
     * incorrectly specified.
     */
    protected function initializeEscapers()
    {
        $that = $this;

        $this->escapers = array(
            'html' =>
                /**
                 * Runs the PHP function htmlspecialchars on the value passed.
                 *
                 * @param string $value the value to escape
                 *
                 * @return string the escaped value
                 */
                function ($value) use ($that) {
                    // Numbers and Boolean values get turned into strings which can cause problems
                    // with type comparisons (e.g. === or is_int() etc).
                    return is_string($value) ? htmlspecialchars($value, ENT_QUOTES | ENT_SUBSTITUTE, $that->getCharset(), false) : $value;
                },

            'js' =>
                /**
                 * A function that escape all non-alphanumeric characters
                 * into their \xHH or \uHHHH representations
                 *
                 * @param string $value the value to escape
                 * @return string the escaped value
                 */
                function ($value) use ($that) {
                    if ('UTF-8' != $that->getCharset()) {
                        $value = $that->convertEncoding($value, 'UTF-8', $that->getCharset());
                    }

                    $callback = function ($matches) use ($that) {
                        $char = $matches[0];

                        // \xHH
                        if (!isset($char[1])) {
                            return '\\x'.substr('00'.bin2hex($char), -2);
                        }

                        // \uHHHH
                        $char = $that->convertEncoding($char, 'UTF-16BE', 'UTF-8');

                        return '\\u'.substr('0000'.bin2hex($char), -4);
                    };

                    if (null === $value = preg_replace_callback('#[^\p{L}\p{N} ]#u', $callback, $value)) {
                        throw new \InvalidArgumentException('The string to escape is not a valid UTF-8 string.');
                    }

                    if ('UTF-8' != $that->getCharset()) {
                        $value = $that->convertEncoding($value, $that->getCharset(), 'UTF-8');
                    }

                    return $value;
                },
        );

        self::$escaperCache = array();
    }

    /**
     * Convert a string from one encoding to another.
     *
     * @param string $string The string to convert
     * @param string $to     The input encoding
     * @param string $from   The output encoding
     *
     * @return string The string with the new encoding
     *
     * @throws \RuntimeException if no suitable encoding function is found (iconv or mbstring)
     */
    public function convertEncoding($string, $to, $from)
    {
        if (function_exists('mb_convert_encoding')) {
            return mb_convert_encoding($string, $to, $from);
        } elseif (function_exists('iconv')) {
            return iconv($from, $to, $string);
        }

        throw new \RuntimeException('No suitable convert encoding function (use UTF-8 as your encoding or install the iconv or mbstring extension).');
    }

    /**
     * Gets the loader associated with this engine.
     *
     * @return LoaderInterface A LoaderInterface instance
     */
    public function getLoader()
    {
        return $this->loader;
    }

    /**
     * Loads the given template.
     *
     * @param string|TemplateReferenceInterface $name A template name or a TemplateReferenceInterface instance
     *
     * @return Storage A Storage instance
     *
     * @throws \InvalidArgumentException if the template cannot be found
     */
    protected function load($name)
    {
        $template = $this->parser->parse($name);

        $key = $template->getLogicalName();
        if (isset($this->cache[$key])) {
            return $this->cache[$key];
        }

        $storage = $this->loader->load($template);

        if (false === $storage) {
            throw new \InvalidArgumentException(sprintf('The template "%s" does not exist.', $template));
        }

        return $this->cache[$key] = $storage;
    }
}

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