/branches/2.8.x/wb/include/Sensio/Twig/lib/Twig/Extension/Core.php - WB 2.08.x - Tracking

wb-archiv283/branches/2.8.x/wb/include/Sensio/Twig/lib/Twig/Extension/Core.php @ 1938

       <?php
       if (!defined('ENT_SUBSTITUTE')) {
           define('ENT_SUBSTITUTE', 8);
+      }
       /*
        * This file is part of Twig.
+       *
        * (c) 2009 Fabien Potencier
+       *
        * For the full copyright and license information, please view the LICENSE
        * file that was distributed with this source code.
        */
       class Twig_Extension_Core extends Twig_Extension
+      {
           protected $dateFormats = array('F j, Y H:i', '%d days');
           protected $numberFormat = array(0, '.', ',');
           protected $timezone = null;
           /**
            * Sets the default format to be used by the date filter.
+           *
            * @param string $format             The default date format string
            * @param string $dateIntervalFormat The default date interval format string
            */
           public function setDateFormat($format = null, $dateIntervalFormat = null)
+          {
               if (null !== $format) {
                   $this->dateFormats[0] = $format;
+              }
               if (null !== $dateIntervalFormat) {
                   $this->dateFormats[1] = $dateIntervalFormat;
+              }
+          }
           /**
            * Gets the default format to be used by the date filter.
+           *
            * @return array The default date format string and the default date interval format string
            */
           public function getDateFormat()
+          {
               return $this->dateFormats;
+          }
           /**
            * Sets the default timezone to be used by the date filter.
+           *
            * @param DateTimeZone|string $timezone The default timezone string or a DateTimeZone object
            */
           public function setTimezone($timezone)
+          {
               $this->timezone = $timezone instanceof DateTimeZone ? $timezone : new DateTimeZone($timezone);
+          }
           /**
            * Gets the default timezone to be used by the date filter.
+           *
            * @return DateTimeZone The default timezone currently in use
            */
           public function getTimezone()
+          {
               if (null === $this->timezone) {
                   $this->timezone = new DateTimeZone(date_default_timezone_get());
+              }
               return $this->timezone;
+          }
           /**
            * Sets the default format to be used by the number_format filter.
+           *
            * @param integer $decimal      The number of decimal places to use.
            * @param string  $decimalPoint The character(s) to use for the decimal point.
            * @param string  $thousandSep  The character(s) to use for the thousands separator.
            */
           public function setNumberFormat($decimal, $decimalPoint, $thousandSep)
+          {
               $this->numberFormat = array($decimal, $decimalPoint, $thousandSep);
+          }
           /**
            * Get the default format used by the number_format filter.
+           *
            * @return array The arguments for number_format()
            */
           public function getNumberFormat()
+          {
               return $this->numberFormat;
+          }
           /**
            * Returns the token parser instance to add to the existing list.
+           *
            * @return array An array of Twig_TokenParser instances
            */
           public function getTokenParsers()
+          {
               return array(
                   new Twig_TokenParser_For(),
                   new Twig_TokenParser_If(),
                   new Twig_TokenParser_Extends(),
                   new Twig_TokenParser_Include(),
                   new Twig_TokenParser_Block(),
                   new Twig_TokenParser_Use(),
                   new Twig_TokenParser_Filter(),
                   new Twig_TokenParser_Macro(),
                   new Twig_TokenParser_Import(),
                   new Twig_TokenParser_From(),
                   new Twig_TokenParser_Set(),
                   new Twig_TokenParser_Spaceless(),
                   new Twig_TokenParser_Flush(),
                   new Twig_TokenParser_Do(),
                   new Twig_TokenParser_Embed(),
               );
+          }
           /**
            * Returns a list of filters to add to the existing list.
+           *
            * @return array An array of filters
            */
           public function getFilters()
+          {
               $filters = array(
                   // formatting filters
                   new Twig_SimpleFilter('date', 'twig_date_format_filter', array('needs_environment' => true)),
                   new Twig_SimpleFilter('date_modify', 'twig_date_modify_filter', array('needs_environment' => true)),
                   new Twig_SimpleFilter('format', 'sprintf'),
                   new Twig_SimpleFilter('replace', 'strtr'),
                   new Twig_SimpleFilter('number_format', 'twig_number_format_filter', array('needs_environment' => true)),
                   new Twig_SimpleFilter('abs', 'abs'),
                   // encoding
                   new Twig_SimpleFilter('url_encode', 'twig_urlencode_filter'),
                   new Twig_SimpleFilter('json_encode', 'twig_jsonencode_filter'),
                   new Twig_SimpleFilter('convert_encoding', 'twig_convert_encoding'),
                   // string filters
                   new Twig_SimpleFilter('title', 'twig_title_string_filter', array('needs_environment' => true)),
                   new Twig_SimpleFilter('capitalize', 'twig_capitalize_string_filter', array('needs_environment' => true)),
                   new Twig_SimpleFilter('upper', 'strtoupper'),
                   new Twig_SimpleFilter('lower', 'strtolower'),
                   new Twig_SimpleFilter('striptags', 'strip_tags'),
                   new Twig_SimpleFilter('trim', 'trim'),
                   new Twig_SimpleFilter('nl2br', 'nl2br', array('pre_escape' => 'html', 'is_safe' => array('html'))),
                   // array helpers
                   new Twig_SimpleFilter('join', 'twig_join_filter'),
                   new Twig_SimpleFilter('split', 'twig_split_filter'),
                   new Twig_SimpleFilter('sort', 'twig_sort_filter'),
                   new Twig_SimpleFilter('merge', 'twig_array_merge'),
                   new Twig_SimpleFilter('batch', 'twig_array_batch'),
                   // string/array filters
                   new Twig_SimpleFilter('reverse', 'twig_reverse_filter', array('needs_environment' => true)),
                   new Twig_SimpleFilter('length', 'twig_length_filter', array('needs_environment' => true)),
                   new Twig_SimpleFilter('slice', 'twig_slice', array('needs_environment' => true)),
                   new Twig_SimpleFilter('first', 'twig_first', array('needs_environment' => true)),
                   new Twig_SimpleFilter('last', 'twig_last', array('needs_environment' => true)),
                   // iteration and runtime
                   new Twig_SimpleFilter('default', '_twig_default_filter', array('node_class' => 'Twig_Node_Expression_Filter_Default')),
                   new Twig_SimpleFilter('keys', 'twig_get_array_keys_filter'),
                   // escaping
                   new Twig_SimpleFilter('escape', 'twig_escape_filter', array('needs_environment' => true, 'is_safe_callback' => 'twig_escape_filter_is_safe')),
                   new Twig_SimpleFilter('e', 'twig_escape_filter', array('needs_environment' => true, 'is_safe_callback' => 'twig_escape_filter_is_safe')),
               );
               if (function_exists('mb_get_info')) {
                   $filters[] = new Twig_SimpleFilter('upper', 'twig_upper_filter', array('needs_environment' => true));
                   $filters[] = new Twig_SimpleFilter('lower', 'twig_lower_filter', array('needs_environment' => true));
+              }
               return $filters;
+          }
           /**
            * Returns a list of global functions to add to the existing list.
+           *
            * @return array An array of global functions
            */
           public function getFunctions()
+          {
               return array(
                   new Twig_SimpleFunction('range', 'range'),
                   new Twig_SimpleFunction('constant', 'twig_constant'),
                   new Twig_SimpleFunction('cycle', 'twig_cycle'),
                   new Twig_SimpleFunction('random', 'twig_random', array('needs_environment' => true)),
                   new Twig_SimpleFunction('date', 'twig_date_converter', array('needs_environment' => true)),
                   new Twig_SimpleFunction('include', 'twig_include', array('needs_environment' => true, 'needs_context' => true, 'is_safe' => array('all'))),
               );
+          }
           /**
            * Returns a list of tests to add to the existing list.
+           *
            * @return array An array of tests
            */
           public function getTests()
+          {
               return array(
                   new Twig_SimpleTest('even', null, array('node_class' => 'Twig_Node_Expression_Test_Even')),
                   new Twig_SimpleTest('odd', null, array('node_class' => 'Twig_Node_Expression_Test_Odd')),
                   new Twig_SimpleTest('defined', null, array('node_class' => 'Twig_Node_Expression_Test_Defined')),
                   new Twig_SimpleTest('sameas', null, array('node_class' => 'Twig_Node_Expression_Test_Sameas')),
                   new Twig_SimpleTest('none', null, array('node_class' => 'Twig_Node_Expression_Test_Null')),
                   new Twig_SimpleTest('null', null, array('node_class' => 'Twig_Node_Expression_Test_Null')),
                   new Twig_SimpleTest('divisibleby', null, array('node_class' => 'Twig_Node_Expression_Test_Divisibleby')),
                   new Twig_SimpleTest('constant', null, array('node_class' => 'Twig_Node_Expression_Test_Constant')),
                   new Twig_SimpleTest('empty', 'twig_test_empty'),
                   new Twig_SimpleTest('iterable', 'twig_test_iterable'),
               );
+          }
           /**
            * Returns a list of operators to add to the existing list.
+           *
            * @return array An array of operators
            */
           public function getOperators()
+          {
               return array(
                   array(
                       'not' => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Not'),
                       '-'   => array('precedence' => 500, 'class' => 'Twig_Node_Expression_Unary_Neg'),
                       '+'   => array('precedence' => 500, 'class' => 'Twig_Node_Expression_Unary_Pos'),
                   ),
                   array(
                       'or'     => array('precedence' => 10, 'class' => 'Twig_Node_Expression_Binary_Or', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       'and'    => array('precedence' => 15, 'class' => 'Twig_Node_Expression_Binary_And', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       'b-or'   => array('precedence' => 16, 'class' => 'Twig_Node_Expression_Binary_BitwiseOr', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       'b-xor'  => array('precedence' => 17, 'class' => 'Twig_Node_Expression_Binary_BitwiseXor', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       'b-and'  => array('precedence' => 18, 'class' => 'Twig_Node_Expression_Binary_BitwiseAnd', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '=='     => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Equal', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '!='     => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '<'      => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Less', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '>'      => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Greater', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '>='     => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_GreaterEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '<='     => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_LessEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       'not in' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotIn', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       'in'     => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_In', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '..'     => array('precedence' => 25, 'class' => 'Twig_Node_Expression_Binary_Range', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '+'      => array('precedence' => 30, 'class' => 'Twig_Node_Expression_Binary_Add', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '-'      => array('precedence' => 30, 'class' => 'Twig_Node_Expression_Binary_Sub', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '~'      => array('precedence' => 40, 'class' => 'Twig_Node_Expression_Binary_Concat', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '*'      => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Mul', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '/'      => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Div', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '//'     => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_FloorDiv', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '%'      => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Mod', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       'is'     => array('precedence' => 100, 'callable' => array($this, 'parseTestExpression'), 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       'is not' => array('precedence' => 100, 'callable' => array($this, 'parseNotTestExpression'), 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       '**'     => array('precedence' => 200, 'class' => 'Twig_Node_Expression_Binary_Power', 'associativity' => Twig_ExpressionParser::OPERATOR_RIGHT),
                   ),
               );
+          }
           public function parseNotTestExpression(Twig_Parser $parser, $node)
+          {
               return new Twig_Node_Expression_Unary_Not($this->parseTestExpression($parser, $node), $parser->getCurrentToken()->getLine());
+          }
           public function parseTestExpression(Twig_Parser $parser, $node)
+          {
               $stream = $parser->getStream();
               $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
               $arguments = null;
               if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
                   $arguments = $parser->getExpressionParser()->parseArguments(true);
+              }
               $class = $this->getTestNodeClass($parser, $name, $node->getLine());
               return new $class($node, $name, $arguments, $parser->getCurrentToken()->getLine());
+          }
           protected function getTestNodeClass(Twig_Parser $parser, $name, $line)
+          {
               $env = $parser->getEnvironment();
               $testMap = $env->getTests();
               if (!isset($testMap[$name])) {
                   $message = sprintf('The test "%s" does not exist', $name);
                   if ($alternatives = $env->computeAlternatives($name, array_keys($env->getTests()))) {
                       $message = sprintf('%s. Did you mean "%s"', $message, implode('", "', $alternatives));
+                  }
                   throw new Twig_Error_Syntax($message, $line, $parser->getFilename());
+              }
               if ($testMap[$name] instanceof Twig_SimpleTest) {
                   return $testMap[$name]->getNodeClass();
+              }
               return $testMap[$name] instanceof Twig_Test_Node ? $testMap[$name]->getClass() : 'Twig_Node_Expression_Test';
+          }
           /**
            * Returns the name of the extension.
+           *
            * @return string The extension name
            */
           public function getName()
+          {
               return 'core';
+          }
+      }
       /**
        * Cycles over a value.
+       *
        * @param ArrayAccess|array $values   An array or an ArrayAccess instance
        * @param integer           $position The cycle position
+       *
        * @return string The next value in the cycle
        */
       function twig_cycle($values, $position)
+      {
           if (!is_array($values) && !$values instanceof ArrayAccess) {
               return $values;
+          }
           return $values[$position % count($values)];
+      }
       /**
        * Returns a random value depending on the supplied parameter type:
        * - a random item from a Traversable or array
        * - a random character from a string
        * - a random integer between 0 and the integer parameter
+       *
        * @param Twig_Environment                 $env    A Twig_Environment instance
        * @param Traversable|array|integer|string $values The values to pick a random item from
+       *
        * @throws Twig_Error_Runtime When $values is an empty array (does not apply to an empty string which is returned as is).
+       *
        * @return mixed A random value from the given sequence
        */
       function twig_random(Twig_Environment $env, $values = null)
+      {
           if (null === $values) {
               return mt_rand();
+          }
           if (is_int($values) || is_float($values)) {
               return $values < 0 ? mt_rand($values, 0) : mt_rand(0, $values);
+          }
           if ($values instanceof Traversable) {
               $values = iterator_to_array($values);
           } elseif (is_string($values)) {
               if ('' === $values) {
                   return '';
+              }
               if (null !== $charset = $env->getCharset()) {
                   if ('UTF-8' != $charset) {
                       $values = twig_convert_encoding($values, 'UTF-8', $charset);
+                  }
                   // unicode version of str_split()
                   // split at all positions, but not after the start and not before the end
                   $values = preg_split('/(?<!^)(?!$)/u', $values);
                   if ('UTF-8' != $charset) {
                       foreach ($values as $i => $value) {
                           $values[$i] = twig_convert_encoding($value, $charset, 'UTF-8');
+                      }
+                  }
               } else {
                   return $values[mt_rand(0, strlen($values) - 1)];
+              }
+          }
           if (!is_array($values)) {
               return $values;
+          }
           if (0 === count($values)) {
               throw new Twig_Error_Runtime('The random function cannot pick from an empty array.');
+          }
           return $values[array_rand($values, 1)];
+      }
       /**
        * Converts a date to the given format.
+       *
        * <pre>
        *   {{ post.published_at|date("m/d/Y") }}
        * </pre>
+       *
        * @param Twig_Environment             $env      A Twig_Environment instance
        * @param DateTime|DateInterval|string $date     A date
        * @param string                       $format   A format
        * @param DateTimeZone|string          $timezone A timezone
+       *
        * @return string The formatted date
        */
       function twig_date_format_filter(Twig_Environment $env, $date, $format = null, $timezone = null)
+      {
           if (null === $format) {
               $formats = $env->getExtension('core')->getDateFormat();
               $format = $date instanceof DateInterval ? $formats[1] : $formats[0];
+          }
           if ($date instanceof DateInterval) {
               return $date->format($format);
+          }
           return twig_date_converter($env, $date, $timezone)->format($format);
+      }
       /**
        * Returns a new date object modified
+       *
        * <pre>
        *   {{ post.published_at|date_modify("-1day")|date("m/d/Y") }}
        * </pre>
+       *
        * @param Twig_Environment  $env      A Twig_Environment instance
        * @param DateTime|string   $date     A date
        * @param string            $modifier A modifier string
+       *
        * @return DateTime A new date object
        */
       function twig_date_modify_filter(Twig_Environment $env, $date, $modifier)
+      {
           $date = twig_date_converter($env, $date, false);
           $date->modify($modifier);
           return $date;
+      }
       /**
        * Converts an input to a DateTime instance.
+       *
        * <pre>
        *    {% if date(user.created_at) < date('+2days') %}
        *      {# do something #}
        *    {% endif %}
        * </pre>
+       *
        * @param Twig_Environment    $env      A Twig_Environment instance
        * @param DateTime|string     $date     A date
        * @param DateTimeZone|string $timezone A timezone
+       *
        * @return DateTime A DateTime instance
        */
       function twig_date_converter(Twig_Environment $env, $date = null, $timezone = null)
+      {
           // determine the timezone
           if (!$timezone) {
               $defaultTimezone = $env->getExtension('core')->getTimezone();
           } elseif (!$timezone instanceof DateTimeZone) {
               $defaultTimezone = new DateTimeZone($timezone);
           } else {
               $defaultTimezone = $timezone;
+          }
           if ($date instanceof DateTime) {
               $date = clone $date;
               if (false !== $timezone) {
                   $date->setTimezone($defaultTimezone);
+              }
               return $date;
+          }
           $asString = (string) $date;
           if (ctype_digit($asString) || (!empty($asString) && '-' === $asString[0] && ctype_digit(substr($asString, 1)))) {
               $date = '@'.$date;
+          }
           $date = new DateTime($date, $defaultTimezone);
           if (false !== $timezone) {
               $date->setTimezone($defaultTimezone);
+          }
           return $date;
+      }
       /**
        * Number format filter.
+       *
        * All of the formatting options can be left null, in that case the defaults will
        * be used.  Supplying any of the parameters will override the defaults set in the
        * environment object.
+       *
        * @param Twig_Environment    $env          A Twig_Environment instance
        * @param mixed               $number       A float/int/string of the number to format
        * @param integer             $decimal      The number of decimal points to display.
        * @param string              $decimalPoint The character(s) to use for the decimal point.
        * @param string              $thousandSep  The character(s) to use for the thousands separator.
+       *
        * @return string The formatted number
        */
       function twig_number_format_filter(Twig_Environment $env, $number, $decimal = null, $decimalPoint = null, $thousandSep = null)
+      {
           $defaults = $env->getExtension('core')->getNumberFormat();
           if (null === $decimal) {
               $decimal = $defaults[0];
+          }
           if (null === $decimalPoint) {
               $decimalPoint = $defaults[1];
+          }
           if (null === $thousandSep) {
               $thousandSep = $defaults[2];
+          }
           return number_format((float) $number, $decimal, $decimalPoint, $thousandSep);
+      }
       /**
        * URL encodes a string as a path segment or an array as a query string.
+       *
        * @param string|array $url A URL or an array of query parameters
        * @param bool         $raw true to use rawurlencode() instead of urlencode
+       *
        * @return string The URL encoded value
        */
       function twig_urlencode_filter($url, $raw = false)
+      {
           if (is_array($url)) {
               return http_build_query($url, '', '&');
+          }
           if ($raw) {
               return rawurlencode($url);
+          }
           return urlencode($url);
+      }
       if (version_compare(PHP_VERSION, '5.3.0', '<')) {
           /**
            * JSON encodes a variable.
+           *
            * @param mixed   $value   The value to encode.
            * @param integer $options Not used on PHP 5.2.x
+           *
            * @return mixed The JSON encoded value
            */
           function twig_jsonencode_filter($value, $options = 0)
+          {
               if ($value instanceof Twig_Markup) {
                   $value = (string) $value;
               } elseif (is_array($value)) {
                   array_walk_recursive($value, '_twig_markup2string');
+              }
               return json_encode($value);
+          }
       } else {
           /**
            * JSON encodes a variable.
+           *
            * @param mixed   $value   The value to encode.
            * @param integer $options Bitmask consisting of JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_NUMERIC_CHECK, JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, JSON_FORCE_OBJECT
+           *
            * @return mixed The JSON encoded value
            */
           function twig_jsonencode_filter($value, $options = 0)
+          {
               if ($value instanceof Twig_Markup) {
                   $value = (string) $value;
               } elseif (is_array($value)) {
                   array_walk_recursive($value, '_twig_markup2string');
+              }
               return json_encode($value, $options);
+          }
+      }
       function _twig_markup2string(&$value)
+      {
           if ($value instanceof Twig_Markup) {
               $value = (string) $value;
+          }
+      }
       /**
        * Merges an array with another one.
+       *
        * <pre>
        *  {% set items = { 'apple': 'fruit', 'orange': 'fruit' } %}
+       *
        *  {% set items = items|merge({ 'peugeot': 'car' }) %}
+       *
        *  {# items now contains { 'apple': 'fruit', 'orange': 'fruit', 'peugeot': 'car' } #}
        * </pre>
+       *
        * @param array $arr1 An array
        * @param array $arr2 An array
+       *
        * @return array The merged array
        */
       function twig_array_merge($arr1, $arr2)
+      {
           if (!is_array($arr1) || !is_array($arr2)) {
               throw new Twig_Error_Runtime('The merge filter only works with arrays or hashes.');
+          }
           return array_merge($arr1, $arr2);
+      }
       /**
        * Slices a variable.
+       *
        * @param Twig_Environment $env          A Twig_Environment instance
        * @param mixed            $item         A variable
        * @param integer          $start        Start of the slice
        * @param integer          $length       Size of the slice
        * @param Boolean          $preserveKeys Whether to preserve key or not (when the input is an array)
+       *
        * @return mixed The sliced variable
        */
       function twig_slice(Twig_Environment $env, $item, $start, $length = null, $preserveKeys = false)
+      {
           if ($item instanceof Traversable) {
               $item = iterator_to_array($item, false);
+          }
           if (is_array($item)) {
               return array_slice($item, $start, $length, $preserveKeys);
+          }
           $item = (string) $item;
           if (function_exists('mb_get_info') && null !== $charset = $env->getCharset()) {
               return mb_substr($item, $start, null === $length ? mb_strlen($item, $charset) - $start : $length, $charset);
+          }
           return null === $length ? substr($item, $start) : substr($item, $start, $length);
+      }
       /**
        * Returns the first element of the item.
+       *
        * @param Twig_Environment $env  A Twig_Environment instance
        * @param mixed            $item A variable
+       *
        * @return mixed The first element of the item
        */
       function twig_first(Twig_Environment $env, $item)
+      {
           $elements = twig_slice($env, $item, 0, 1, false);
           return is_string($elements) ? $elements[0] : current($elements);
+      }
       /**
        * Returns the last element of the item.
+       *
        * @param Twig_Environment $env  A Twig_Environment instance
        * @param mixed            $item A variable
+       *
        * @return mixed The last element of the item
        */
       function twig_last(Twig_Environment $env, $item)
+      {
           $elements = twig_slice($env, $item, -1, 1, false);
           return is_string($elements) ? $elements[0] : current($elements);
+      }
       /**
        * Joins the values to a string.
+       *
        * The separator between elements is an empty string per default, you can define it with the optional parameter.
+       *
        * <pre>
        *  {{ [1, 2, 3]|join('|') }}
        *  {# returns 1|2|3 #}
+       *
        *  {{ [1, 2, 3]|join }}
        *  {# returns 123 #}
        * </pre>
+       *
        * @param array  $value An array
        * @param string $glue  The separator
+       *
        * @return string The concatenated string
        */
       function twig_join_filter($value, $glue = '')
+      {
           if ($value instanceof Traversable) {
               $value = iterator_to_array($value, false);
+          }
           return implode($glue, (array) $value);
+      }
       /**
        * Splits the string into an array.
+       *
        * <pre>
        *  {{ "one,two,three"|split(',') }}
        *  {# returns [one, two, three] #}
+       *
        *  {{ "one,two,three,four,five"|split(',', 3) }}
        *  {# returns [one, two, "three,four,five"] #}
+       *
        *  {{ "123"|split('') }}
        *  {# returns [1, 2, 3] #}
+       *
        *  {{ "aabbcc"|split('', 2) }}
        *  {# returns [aa, bb, cc] #}
        * </pre>
+       *
        * @param string  $value     A string
        * @param string  $delimiter The delimiter
        * @param integer $limit     The limit
+       *
        * @return array The split string as an array
        */
       function twig_split_filter($value, $delimiter, $limit = null)
+      {
           if (empty($delimiter)) {
               return str_split($value, null === $limit ? 1 : $limit);
+          }
           return null === $limit ? explode($delimiter, $value) : explode($delimiter, $value, $limit);
+      }
       // The '_default' filter is used internally to avoid using the ternary operator
       // which costs a lot for big contexts (before PHP 5.4). So, on average,
       // a function call is cheaper.
       function _twig_default_filter($value, $default = '')
+      {
           if (twig_test_empty($value)) {
               return $default;
+          }
           return $value;
+      }
       /**
        * Returns the keys for the given array.
+       *
        * It is useful when you want to iterate over the keys of an array:
+       *
        * <pre>
        *  {% for key in array|keys %}
        *      {# ... #}
        *  {% endfor %}
        * </pre>
+       *
        * @param array $array An array
+       *
        * @return array The keys
        */
       function twig_get_array_keys_filter($array)
+      {
           if (is_object($array) && $array instanceof Traversable) {
               return array_keys(iterator_to_array($array));
+          }
           if (!is_array($array)) {
               return array();
+          }
           return array_keys($array);
+      }
       /**
        * Reverses a variable.
+       *
        * @param Twig_Environment         $env          A Twig_Environment instance
        * @param array|Traversable|string $item         An array, a Traversable instance, or a string
        * @param Boolean                  $preserveKeys Whether to preserve key or not
+       *
        * @return mixed The reversed input
        */
       function twig_reverse_filter(Twig_Environment $env, $item, $preserveKeys = false)
+      {
           if (is_object($item) && $item instanceof Traversable) {
               return array_reverse(iterator_to_array($item), $preserveKeys);
+          }
           if (is_array($item)) {
               return array_reverse($item, $preserveKeys);
+          }
           if (null !== $charset = $env->getCharset()) {
               $string = (string) $item;
               if ('UTF-8' != $charset) {
                   $item = twig_convert_encoding($string, 'UTF-8', $charset);
+              }
               preg_match_all('/./us', $item, $matches);
               $string = implode('', array_reverse($matches[0]));
               if ('UTF-8' != $charset) {
                   $string = twig_convert_encoding($string, $charset, 'UTF-8');
+              }
               return $string;
+          }
           return strrev((string) $item);
+      }
       /**
        * Sorts an array.
+       *
        * @param array $array An array
        */
       function twig_sort_filter($array)
+      {
           asort($array);
           return $array;
+      }
       /* used internally */
       function twig_in_filter($value, $compare)
+      {
           if (is_array($compare)) {
               return in_array($value, $compare, is_object($value));
           } elseif (is_string($compare)) {
               if (!strlen($value)) {
                   return empty($compare);
+              }
               return false !== strpos($compare, (string) $value);
           } elseif ($compare instanceof Traversable) {
               return in_array($value, iterator_to_array($compare, false), is_object($value));
+          }
           return false;
+      }
       /**
        * Escapes a string.
+       *
        * @param Twig_Environment $env        A Twig_Environment instance
        * @param string           $string     The value to be escaped
        * @param string           $strategy   The escaping strategy
        * @param string           $charset    The charset
        * @param Boolean          $autoescape Whether the function is called by the auto-escaping feature (true) or by the developer (false)
        */
       function twig_escape_filter(Twig_Environment $env, $string, $strategy = 'html', $charset = null, $autoescape = false)
+      {
           if ($autoescape && $string instanceof Twig_Markup) {
               return $string;
+          }
           if (!is_string($string)) {
               if (is_object($string) && method_exists($string, '__toString')) {
                   $string = (string) $string;
               } else {
                   return $string;
+              }
+          }
           if (null === $charset) {
               $charset = $env->getCharset();
+          }
           switch ($strategy) {
               case 'html':
                   // see http://php.net/htmlspecialchars
                   // Using a static variable to avoid initializing the array
                   // each time the function is called. Moving the declaration on the
                   // top of the function slow downs other escaping strategies.
                   static $htmlspecialcharsCharsets = array(
                       'ISO-8859-1' => true, 'ISO8859-1' => true,
                       'ISO-8859-15' => true, 'ISO8859-15' => true,
                       'utf-8' => true, 'UTF-8' => true,
                       'CP866' => true, 'IBM866' => true, '866' => true,
                       'CP1251' => true, 'WINDOWS-1251' => true, 'WIN-1251' => true,
                       '1251' => true,
                       'CP1252' => true, 'WINDOWS-1252' => true, '1252' => true,
                       'KOI8-R' => true, 'KOI8-RU' => true, 'KOI8R' => true,
                       'BIG5' => true, '950' => true,
                       'GB2312' => true, '936' => true,
                       'BIG5-HKSCS' => true,
                       'SHIFT_JIS' => true, 'SJIS' => true, '932' => true,
                       'EUC-JP' => true, 'EUCJP' => true,
                       'ISO8859-5' => true, 'ISO-8859-5' => true, 'MACROMAN' => true,
                   );
                   if (isset($htmlspecialcharsCharsets[$charset])) {
                       return htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, $charset);
+                  }
                   if (isset($htmlspecialcharsCharsets[strtoupper($charset)])) {
                       // cache the lowercase variant for future iterations
                       $htmlspecialcharsCharsets[$charset] = true;
                       return htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, $charset);
+                  }
                   $string = twig_convert_encoding($string, 'UTF-8', $charset);
                   $string = htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
                   return twig_convert_encoding($string, $charset, 'UTF-8');
               case 'js':
                   // escape all non-alphanumeric characters
                   // into their \xHH or \uHHHH representations
                   if ('UTF-8' != $charset) {
                       $string = twig_convert_encoding($string, 'UTF-8', $charset);
+                  }
                   if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) {
                       throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.');
+                  }
                   $string = preg_replace_callback('#[^a-zA-Z0-9,\._]#Su', '_twig_escape_js_callback', $string);
                   if ('UTF-8' != $charset) {
                       $string = twig_convert_encoding($string, $charset, 'UTF-8');
+                  }
                   return $string;
               case 'css':
                   if ('UTF-8' != $charset) {
                       $string = twig_convert_encoding($string, 'UTF-8', $charset);
+                  }
                   if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) {
                       throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.');
+                  }
                   $string = preg_replace_callback('#[^a-zA-Z0-9]#Su', '_twig_escape_css_callback', $string);
                   if ('UTF-8' != $charset) {
                       $string = twig_convert_encoding($string, $charset, 'UTF-8');
+                  }
                   return $string;
               case 'html_attr':
                   if ('UTF-8' != $charset) {
                       $string = twig_convert_encoding($string, 'UTF-8', $charset);
+                  }
                   if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) {
                       throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.');
+                  }
                   $string = preg_replace_callback('#[^a-zA-Z0-9,\.\-_]#Su', '_twig_escape_html_attr_callback', $string);
                   if ('UTF-8' != $charset) {
                       $string = twig_convert_encoding($string, $charset, 'UTF-8');
+                  }
                   return $string;
               case 'url':
                   // hackish test to avoid version_compare that is much slower, this works unless PHP releases a 5.10.*
                   // at that point however PHP 5.2.* support can be removed
                   if (PHP_VERSION < '5.3.0') {
                       return str_replace('%7E', '~', rawurlencode($string));
+                  }
                   return rawurlencode($string);
               default:
                   throw new Twig_Error_Runtime(sprintf('Invalid escaping strategy "%s" (valid ones: html, js, url, css, and html_attr).', $strategy));
+          }
+      }
       /* used internally */
       function twig_escape_filter_is_safe(Twig_Node $filterArgs)
+      {
           foreach ($filterArgs as $arg) {
               if ($arg instanceof Twig_Node_Expression_Constant) {
                   return array($arg->getAttribute('value'));
+              }
               return array();
+          }
           return array('html');
+      }
       if (function_exists('mb_convert_encoding')) {
           function twig_convert_encoding($string, $to, $from)
+          {
               return mb_convert_encoding($string, $to, $from);
+          }
       } elseif (function_exists('iconv')) {
           function twig_convert_encoding($string, $to, $from)
+          {
               return iconv($from, $to, $string);
+          }
       } else {
           function twig_convert_encoding($string, $to, $from)
+          {
               throw new Twig_Error_Runtime('No suitable convert encoding function (use UTF-8 as your encoding or install the iconv or mbstring extension).');
+          }
+      }
       function _twig_escape_js_callback($matches)
+      {
           $char = $matches[0];
           // \xHH
           if (!isset($char[1])) {
               return '\\x'.strtoupper(substr('00'.bin2hex($char), -2));
+          }
           // \uHHHH
           $char = twig_convert_encoding($char, 'UTF-16BE', 'UTF-8');
           return '\\u'.strtoupper(substr('0000'.bin2hex($char), -4));
+      }
       function _twig_escape_css_callback($matches)
+      {
           $char = $matches[0];
           // \xHH
           if (!isset($char[1])) {
               $hex = ltrim(strtoupper(bin2hex($char)), '0');
               if (0 === strlen($hex)) {
                   $hex = '0';
+              }
               return '\\'.$hex.' ';
+          }
           // \uHHHH
           $char = twig_convert_encoding($char, 'UTF-16BE', 'UTF-8');
           return '\\'.ltrim(strtoupper(bin2hex($char)), '0').' ';
+      }
       /**
        * This function is adapted from code coming from Zend Framework.
+       *
        * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
        * @license   http://framework.zend.com/license/new-bsd New BSD License
        */
       function _twig_escape_html_attr_callback($matches)
+      {
           /*
            * While HTML supports far more named entities, the lowest common denominator
            * has become HTML5's XML Serialisation which is restricted to the those named
            * entities that XML supports. Using HTML entities would result in this error:
            *     XML Parsing Error: undefined entity
            */
           static $entityMap = array(
 => 'quot', /* quotation mark */
 => 'amp',  /* ampersand */
 => 'lt',   /* less-than sign */
 => 'gt',   /* greater-than sign */
           );
           $chr = $matches[0];
           $ord = ord($chr);
           /**
            * The following replaces characters undefined in HTML with the
            * hex entity for the Unicode replacement character.
            */
           if (($ord <= 0x1f && $chr != "\t" && $chr != "\n" && $chr != "\r") || ($ord >= 0x7f && $ord <= 0x9f)) {
               return '&#xFFFD;';
+          }
           /**
            * Check if the current character to escape has a name entity we should
            * replace it with while grabbing the hex value of the character.
            */
           if (strlen($chr) == 1) {
               $hex = strtoupper(substr('00'.bin2hex($chr), -2));
           } else {
               $chr = twig_convert_encoding($chr, 'UTF-16BE', 'UTF-8');
               $hex = strtoupper(substr('0000'.bin2hex($chr), -4));
+          }
           $int = hexdec($hex);
           if (array_key_exists($int, $entityMap)) {
               return sprintf('&%s;', $entityMap[$int]);
+          }
           /**
            * Per OWASP recommendations, we'll use hex entities for any other
            * characters where a named entity does not exist.
            */
           return sprintf('&#x%s;', $hex);
+      }
       // add multibyte extensions if possible
       if (function_exists('mb_get_info')) {
           /**
            * Returns the length of a variable.
+           *
            * @param Twig_Environment $env   A Twig_Environment instance
            * @param mixed            $thing A variable
+           *
            * @return integer The length of the value
            */
           function twig_length_filter(Twig_Environment $env, $thing)
+          {
               return is_scalar($thing) ? mb_strlen($thing, $env->getCharset()) : count($thing);
+          }
           /**
            * Converts a string to uppercase.
+           *
            * @param Twig_Environment $env    A Twig_Environment instance
            * @param string           $string A string
+           *
            * @return string The uppercased string
            */
           function twig_upper_filter(Twig_Environment $env, $string)
+          {
               if (null !== ($charset = $env->getCharset())) {
                   return mb_strtoupper($string, $charset);
+              }
               return strtoupper($string);
+          }
           /**
            * Converts a string to lowercase.
+           *
            * @param Twig_Environment $env    A Twig_Environment instance
            * @param string           $string A string
+           *
            * @return string The lowercased string
            */
           function twig_lower_filter(Twig_Environment $env, $string)
+          {
               if (null !== ($charset = $env->getCharset())) {
                   return mb_strtolower($string, $charset);
+              }
               return strtolower($string);
+          }
           /**
            * Returns a titlecased string.
+           *
            * @param Twig_Environment $env    A Twig_Environment instance
            * @param string           $string A string
+           *
            * @return string The titlecased string
            */
           function twig_title_string_filter(Twig_Environment $env, $string)
+          {
               if (null !== ($charset = $env->getCharset())) {
                   return mb_convert_case($string, MB_CASE_TITLE, $charset);
+              }
               return ucwords(strtolower($string));
+          }
           /**
            * Returns a capitalized string.
+           *
            * @param Twig_Environment $env    A Twig_Environment instance
            * @param string           $string A string
+           *
            * @return string The capitalized string
            */
           function twig_capitalize_string_filter(Twig_Environment $env, $string)
+          {
               if (null !== ($charset = $env->getCharset())) {
                   return mb_strtoupper(mb_substr($string, 0, 1, $charset), $charset).
                                mb_strtolower(mb_substr($string, 1, mb_strlen($string, $charset), $charset), $charset);
+              }
               return ucfirst(strtolower($string));
+          }
+      }
       // and byte fallback
       else {
           /**
            * Returns the length of a variable.
+           *
            * @param Twig_Environment $env   A Twig_Environment instance
            * @param mixed            $thing A variable
+           *
            * @return integer The length of the value
            */
           function twig_length_filter(Twig_Environment $env, $thing)
+          {
               return is_scalar($thing) ? strlen($thing) : count($thing);
+          }
           /**
            * Returns a titlecased string.
+           *
            * @param Twig_Environment $env    A Twig_Environment instance
            * @param string           $string A string
+           *
            * @return string The titlecased string
            */
           function twig_title_string_filter(Twig_Environment $env, $string)
+          {
               return ucwords(strtolower($string));
+          }
           /**
            * Returns a capitalized string.
+           *
            * @param Twig_Environment $env    A Twig_Environment instance
            * @param string           $string A string
+           *
            * @return string The capitalized string
            */
           function twig_capitalize_string_filter(Twig_Environment $env, $string)
+          {
               return ucfirst(strtolower($string));
+          }
+      }
       /* used internally */
       function twig_ensure_traversable($seq)
+      {
           if ($seq instanceof Traversable || is_array($seq)) {
               return $seq;
+          }
           return array();
+      }
       /**
        * Checks if a variable is empty.
+       *
        * <pre>
        * {# evaluates to true if the foo variable is null, false, or the empty string #}
        * {% if foo is empty %}
        *     {# ... #}
        * {% endif %}
        * </pre>
+       *
        * @param mixed $value A variable
+       *
        * @return Boolean true if the value is empty, false otherwise
        */
       function twig_test_empty($value)
+      {
           if ($value instanceof Countable) {
               return 0 == count($value);
+          }
           return '' === $value || false === $value || null === $value || array() === $value;
+      }
       /**
        * Checks if a variable is traversable.
+       *
        * <pre>
        * {# evaluates to true if the foo variable is an array or a traversable object #}
        * {% if foo is traversable %}
        *     {# ... #}
        * {% endif %}
        * </pre>
+       *
        * @param mixed $value A variable
+       *
        * @return Boolean true if the value is traversable
        */
       function twig_test_iterable($value)
+      {
           return $value instanceof Traversable || is_array($value);
+      }
       /**
        * Renders a template.
+       *
        * @param string  $template       The template to render
        * @param array   $variables      The variables to pass to the template
        * @param Boolean $with_context   Whether to pass the current context variables or not
        * @param Boolean $ignore_missing Whether to ignore missing templates or not
        * @param Boolean $sandboxed      Whether to sandbox the template or not
+       *
        * @return string The rendered template
        */
       function twig_include(Twig_Environment $env, $context, $template, $variables = array(), $withContext = true, $ignoreMissing = false, $sandboxed = false)
+      {
           if ($withContext) {
               $variables = array_merge($context, $variables);
+          }
           if ($isSandboxed = $sandboxed && $env->hasExtension('sandbox')) {
               $sandbox = $env->getExtension('sandbox');
               if (!$alreadySandboxed = $sandbox->isSandboxed()) {
                   $sandbox->enableSandbox();
+              }
+          }
           try {
               return $env->resolveTemplate($template)->render($variables);
           } catch (Twig_Error_Loader $e) {
               if (!$ignoreMissing) {
                   throw $e;
+              }
+          }
           if ($isSandboxed && !$alreadySandboxed) {
               $sandbox->disableSandbox();
+          }
+      }
       /**
        * Provides the ability to get constants from instances as well as class/global constants.
+       *
        * @param string      $constant The name of the constant
        * @param null|object $object   The object to get the constant from
+       *
        * @return string
        */
       function twig_constant($constant, $object = null)
+      {
           if (null !== $object) {
               $constant = get_class($object).'::'.$constant;
+          }
           return constant($constant);
+      }
       /**
        * Batches item.
+       *
        * @param array   $items An array of items
        * @param integer $size  The size of the batch
        * @param string  $fill  A string to fill missing items
+       *
        * @return array
        */
       function twig_array_batch($items, $size, $fill = null)
+      {
           if ($items instanceof Traversable) {
               $items = iterator_to_array($items, false);
+          }
           $size = ceil($size);
           $result = array_chunk($items, $size, true);
           if (null !== $fill) {
               $last = count($result) - 1;
               $result[$last] = array_merge(
                   $result[$last],
                   array_fill(0, $size - count($result[$last]), $fill)
               );
+          }
           return $result;
+      }

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