/trunk/include/Sensio/Twig/lib/Twig/Extension/Core.php - WB 2.11.0 - Tracking

wb-2_10_x/trunk/include/Sensio/Twig/lib/Twig/Extension/Core.php @ 2

       <?php
       if (!defined('ENT_SUBSTITUTE')) {
           // use 0 as hhvm does not support several flags yet
           define('ENT_SUBSTITUTE', 0);
+      }
       /*
        * 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;
           protected $escapers = array();
           /**
            * Defines a new escaper to be used via the escape filter.
+           *
            * @param string   $strategy The strategy name that should be used as a strategy in the escape call
            * @param callable $callable A valid PHP callable
            */
           public function setEscaper($strategy, $callable)
+          {
               $this->escapers[$strategy] = $callable;
+          }
           /**
            * Gets all defined escapers.
+           *
            * @return array An array of escapers
            */
           public function getEscapers()
+          {
               return $this->escapers;
+          }
           /**
            * 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 int    $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;
+          }
           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(),
               );
+          }
           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', 'twig_replace_filter'),
                   new Twig_SimpleFilter('number_format', 'twig_number_format_filter', array('needs_environment' => true)),
                   new Twig_SimpleFilter('abs', 'abs'),
                   new Twig_SimpleFilter('round', 'twig_round'),
                   // 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', array('needs_environment' => true)),
                   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;
+          }
           public function getFunctions()
+          {
               return array(
                   new Twig_SimpleFunction('max', 'max'),
                   new Twig_SimpleFunction('min', 'min'),
                   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'))),
                   new Twig_SimpleFunction('source', 'twig_source', array('needs_environment' => true, 'is_safe' => array('all'))),
               );
+          }
           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', 'deprecated' => '1.21', 'alternative' => 'same as')),
                   new Twig_SimpleTest('same as', 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', 'deprecated' => '1.21', 'alternative' => 'divisible by')),
                   new Twig_SimpleTest('divisible by', 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'),
               );
+          }
           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),
                       'matches' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Matches', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       'starts with' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_StartsWith', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
                       'ends with' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_EndsWith', '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),
                       '??' => array('precedence' => 300, 'class' => 'Twig_Node_Expression_NullCoalesce', 'associativity' => Twig_ExpressionParser::OPERATOR_RIGHT),
                   ),
               );
+          }
           public function parseNotTestExpression(Twig_Parser $parser, Twig_NodeInterface $node)
+          {
               return new Twig_Node_Expression_Unary_Not($this->parseTestExpression($parser, $node), $parser->getCurrentToken()->getLine());
+          }
           public function parseTestExpression(Twig_Parser $parser, Twig_NodeInterface $node)
+          {
               $stream = $parser->getStream();
               list($name, $test) = $this->getTest($parser, $node->getLine());
               if ($test instanceof Twig_SimpleTest && $test->isDeprecated()) {
                   $message = sprintf('Twig Test "%s" is deprecated', $name);
                   if (!is_bool($test->getDeprecatedVersion())) {
                       $message .= sprintf(' since version %s', $test->getDeprecatedVersion());
+                  }
                   if ($test->getAlternative()) {
                       $message .= sprintf('. Use "%s" instead', $test->getAlternative());
+                  }
                   $message .= sprintf(' in %s at line %d.', $stream->getFilename(), $stream->getCurrent()->getLine());
                   @trigger_error($message, E_USER_DEPRECATED);
+              }
               $class = $this->getTestNodeClass($parser, $test);
               $arguments = null;
               if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
                   $arguments = $parser->getExpressionParser()->parseArguments(true);
+              }
               return new $class($node, $name, $arguments, $parser->getCurrentToken()->getLine());
+          }
           protected function getTest(Twig_Parser $parser, $line)
+          {
               $stream = $parser->getStream();
               $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
               $env = $parser->getEnvironment();
               if ($test = $env->getTest($name)) {
                   return array($name, $test);
+              }
               if ($stream->test(Twig_Token::NAME_TYPE)) {
                   // try 2-words tests
                   $name = $name.' '.$parser->getCurrentToken()->getValue();
                   if ($test = $env->getTest($name)) {
                       $parser->getStream()->next();
                       return array($name, $test);
+                  }
+              }
               $e = new Twig_Error_Syntax(sprintf('Unknown "%s" test.', $name), $line, $parser->getFilename());
               $e->addSuggestions($name, array_keys($env->getTests()));
               throw $e;
+          }
           protected function getTestNodeClass(Twig_Parser $parser, $test)
+          {
               if ($test instanceof Twig_SimpleTest) {
                   return $test->getNodeClass();
+              }
               return $test instanceof Twig_Test_Node ? $test->getClass() : 'Twig_Node_Expression_Test';
+          }
           public function getName()
+          {
               return 'core';
+          }
+      }
       /**
        * Cycles over a value.
+       *
        * @param ArrayAccess|array $values   An array or an ArrayAccess instance
        * @param int               $position The cycle position
+       *
        * @return string The next value in the cycle
        */
       function twig_cycle($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|int|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|DateTimeInterface|DateInterval|string $date     A date
        * @param string|null                                    $format   The target format, null to use the default
        * @param DateTimeZone|string|null|false                 $timezone The target timezone, null to use the default, false to leave unchanged
+       *
        * @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);
           $resultDate = $date->modify($modifier);
           // This is a hack to ensure PHP 5.2 support and support for DateTimeImmutable
           // DateTime::modify does not return the modified DateTime object < 5.3.0
           // and DateTimeImmutable does not modify $date.
           return null === $resultDate ? $date : $resultDate;
+      }
       /**
        * 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|DateTimeInterface|string|null $date     A date
        * @param DateTimeZone|string|null|false         $timezone The target timezone, null to use the default, false to leave unchanged
+       *
        * @return DateTime A DateTime instance
        */
       function twig_date_converter(Twig_Environment $env, $date = null, $timezone = null)
+      {
           // determine the timezone
           if (false !== $timezone) {
               if (null === $timezone) {
                   $timezone = $env->getExtension('core')->getTimezone();
               } elseif (!$timezone instanceof DateTimeZone) {
                   $timezone = new DateTimeZone($timezone);
+              }
+          }
           // immutable dates
           if ($date instanceof DateTimeImmutable) {
               return false !== $timezone ? $date->setTimezone($timezone) : $date;
+          }
           if ($date instanceof DateTime || $date instanceof DateTimeInterface) {
               $date = clone $date;
               if (false !== $timezone) {
                   $date->setTimezone($timezone);
+              }
               return $date;
+          }
           if (null === $date || 'now' === $date) {
               return new DateTime($date, false !== $timezone ? $timezone : $env->getExtension('core')->getTimezone());
+          }
           $asString = (string) $date;
           if (ctype_digit($asString) || (!empty($asString) && '-' === $asString[0] && ctype_digit(substr($asString, 1)))) {
               $date = new DateTime('@'.$date);
           } else {
               $date = new DateTime($date, $env->getExtension('core')->getTimezone());
+          }
           if (false !== $timezone) {
               $date->setTimezone($timezone);
+          }
           return $date;
+      }
       /**
        * Replaces strings within a string.
+       *
        * @param string            $str  String to replace in
        * @param array|Traversable $from Replace values
        * @param string|null       $to   Replace to, deprecated (@see http://php.net/manual/en/function.strtr.php)
+       *
        * @return string
        */
       function twig_replace_filter($str, $from, $to = null)
+      {
           if ($from instanceof Traversable) {
               $from = iterator_to_array($from);
           } elseif (is_string($from) && is_string($to)) {
               @trigger_error('Using "replace" with character by character replacement is deprecated since version 1.22 and will be removed in Twig 2.0', E_USER_DEPRECATED);
               return strtr($str, $from, $to);
           } elseif (!is_array($from)) {
               throw new Twig_Error_Runtime(sprintf('The "replace" filter expects an array or "Traversable" as replace values, got "%s".',is_object($from) ? get_class($from) : gettype($from)));
+          }
           return strtr($str, $from);
+      }
       /**
        * Rounds a number.
+       *
        * @param int|float $value     The value to round
        * @param int|float $precision The rounding precision
        * @param string    $method    The method to use for rounding
+       *
        * @return int|float The rounded number
        */
       function twig_round($value, $precision = 0, $method = 'common')
+      {
           if ('common' == $method) {
               return round($value, $precision);
+          }
           if ('ceil' != $method && 'floor' != $method) {
               throw new Twig_Error_Runtime('The round filter only supports the "common", "ceil", and "floor" methods.');
+          }
           return $method($value * pow(10, $precision)) / pow(10, $precision);
+      }
       /**
        * 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 int              $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 (RFC 3986) a string as a path segment or an array as a query string.
+       *
        * @param string|array $url A URL or an array of query parameters
+       *
        * @return string The URL encoded value
        */
       function twig_urlencode_filter($url)
+      {
           if (is_array($url)) {
               if (defined('PHP_QUERY_RFC3986')) {
                   return http_build_query($url, '', '&', PHP_QUERY_RFC3986);
+              }
               return http_build_query($url, '', '&');
+          }
           return rawurlencode($url);
+      }
       if (PHP_VERSION_ID < 50300) {
           /**
            * JSON encodes a variable.
+           *
            * @param mixed $value   The value to encode.
            * @param int   $options Not used on PHP 5.2.x
+           *
            * @return mixed The JSON encoded value
            */
           function twig_jsonencode_filter($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 int   $options Bitmask consisting of JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_NUMERIC_CHECK, JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, JSON_FORCE_OBJECT
+           *
            * @return mixed The JSON encoded value
            */
           function twig_jsonencode_filter($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|Traversable $arr1 An array
        * @param array|Traversable $arr2 An array
+       *
        * @return array The merged array
        */
       function twig_array_merge($arr1, $arr2)
+      {
           if ($arr1 instanceof Traversable) {
               $arr1 = iterator_to_array($arr1);
           } elseif (!is_array($arr1)) {
               throw new Twig_Error_Runtime(sprintf('The merge filter only works with arrays or "Traversable", got "%s" as first argument.', gettype($arr1)));
+          }
           if ($arr2 instanceof Traversable) {
               $arr2 = iterator_to_array($arr2);
           } elseif (!is_array($arr2)) {
               throw new Twig_Error_Runtime(sprintf('The merge filter only works with arrays or "Traversable", got "%s" as second argument.', gettype($arr2)));
+          }
           return array_merge($arr1, $arr2);
+      }
       /**
        * Slices a variable.
+       *
        * @param Twig_Environment $env          A Twig_Environment instance
        * @param mixed            $item         A variable
        * @param int              $start        Start of the slice
        * @param int              $length       Size of the slice
        * @param bool             $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) {
               if ($item instanceof IteratorAggregate) {
                   $item = $item->getIterator();
+              }
               if ($start >= 0 && $length >= 0 && $item instanceof Iterator) {
                   try {
                       return iterator_to_array(new LimitIterator($item, $start, $length === null ? -1 : $length), $preserveKeys);
                   } catch (OutOfBoundsException $exception) {
                       return array();
+                  }
+              }
               $item = iterator_to_array($item, $preserveKeys);
+          }
           if (is_array($item)) {
               return array_slice($item, $start, $length, $preserveKeys);
+          }
           $item = (string) $item;
           if (function_exists('mb_get_info') && null !== $charset = $env->getCharset()) {
               return (string) mb_substr($item, $start, null === $length ? mb_strlen($item, $charset) - $start : $length, $charset);
+          }
           return (string) (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) ? $elements : current($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) ? $elements : current($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 Twig_Environment $env       A Twig_Environment instance
        * @param string           $value     A string
        * @param string           $delimiter The delimiter
        * @param int              $limit     The limit
+       *
        * @return array The split string as an array
        */
       function twig_split_filter(Twig_Environment $env, $value, $delimiter, $limit = null)
+      {
           if (!empty($delimiter)) {
               return null === $limit ? explode($delimiter, $value) : explode($delimiter, $value, $limit);
+          }
           if (!function_exists('mb_get_info') || null === $charset = $env->getCharset()) {
               return str_split($value, null === $limit ? 1 : $limit);
+          }
           if ($limit <= 1) {
               return preg_split('/(?<!^)(?!$)/u', $value);
+          }
           $length = mb_strlen($value, $charset);
           if ($length < $limit) {
               return array($value);
+          }
           $r = array();
           for ($i = 0; $i < $length; $i += $limit) {
               $r[] = mb_substr($value, $i, $limit, $charset);
+          }
           return $r;
+      }
       // The '_default' filter is used internally to avoid using the ternary operator
       // which costs a lot for big contexts (before PHP 5.4). So, on average,
       // a function call is cheaper.
       /**
        * @internal
        */
       function _twig_default_filter($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 ($array instanceof Traversable) {
               return array_keys(iterator_to_array($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 bool                     $preserveKeys Whether to preserve key or not
+       *
        * @return mixed The reversed input
        */
       function twig_reverse_filter(Twig_Environment $env, $item, $preserveKeys = false)
+      {
           if ($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|Traversable $array
+       *
        * @return array
        */
       function twig_sort_filter($array)
+      {
           if ($array instanceof Traversable) {
               $array = iterator_to_array($array);
           } elseif (!is_array($array)) {
               throw new Twig_Error_Runtime(sprintf('The sort filter only works with arrays or "Traversable", got "%s".', gettype($array)));
+          }
           asort($array);
           return $array;
+      }
       /**
        * @internal
        */
       function twig_in_filter($value, $compare)
+      {
           if (is_array($compare)) {
               return in_array($value, $compare, is_object($value) || is_resource($value));
           } elseif (is_string($compare) && (is_string($value) || is_int($value) || is_float($value))) {
               return '' === $value || false !== strpos($compare, (string) $value);
           } elseif ($compare instanceof Traversable) {
               return in_array($value, iterator_to_array($compare, false), is_object($value) || is_resource($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 bool             $autoescape Whether the function is called by the auto-escaping feature (true) or by the developer (false)
+       *
        * @return string
        */
       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) $string;
               } elseif (in_array($strategy, array('html', 'js', 'css', 'html_attr', 'url'))) {
                   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;
                   if (null === $htmlspecialcharsCharsets) {
                       if (defined('HHVM_VERSION')) {
                           $htmlspecialcharsCharsets = array('utf-8' => true, 'UTF-8' => true);
                       } else {
                           $htmlspecialcharsCharsets = array(
                               'ISO-8859-1' => true, 'ISO8859-1' => true,
                               'ISO-8859-15' => true, 'ISO8859-15' => true,
                               'utf-8' => true, 'UTF-8' => true,
                               'CP866' => true, 'IBM866' => true, '866' => true,
                               'CP1251' => true, 'WINDOWS-1251' => true, 'WIN-1251' => true,
                               '1251' => true,
                               'CP1252' => true, 'WINDOWS-1252' => true, '1252' => true,
                               'KOI8-R' => true, 'KOI8-RU' => true, 'KOI8R' => true,
                               'BIG5' => true, '950' => true,
                               'GB2312' => true, '936' => true,
                               'BIG5-HKSCS' => true,
                               'SHIFT_JIS' => true, 'SJIS' => true, '932' => true,
                               'EUC-JP' => true, 'EUCJP' => true,
                               'ISO8859-5' => true, 'ISO-8859-5' => true, 'MACROMAN' => true,
                           );
+                      }
+                  }
                   if (isset($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 $string;
               case 'url':
                   if (PHP_VERSION_ID < 50300) {
                       return str_replace('%7E', '~', rawurlencode($string));
+                  }
                   return rawurlencode($string);
               default:
                   static $escapers;
                   if (null === $escapers) {
                       $escapers = $env->getExtension('core')->getEscapers();
+                  }
                   if (isset($escapers[$strategy])) {
                       return call_user_func($escapers[$strategy], $env, $string, $charset);
+                  }
                   $validStrategies = implode(', ', array_merge(array('html', 'js', 'url', 'css', 'html_attr'), array_keys($escapers)));
                   throw new Twig_Error_Runtime(sprintf('Invalid escaping strategy "%s" (valid ones: %s).', $strategy, $validStrategies));
+          }
+      }
       /**
        * @internal
        */
       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 int 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 int 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));
+          }
+      }
       /**
        * @internal
        */
       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 $value A variable
+       *
        * @return bool true if the value is empty, false otherwise
        */
       function twig_test_empty($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 $value A variable
+       *
        * @return bool true if the value is traversable
        */
       function twig_test_iterable($value)
+      {
           return $value instanceof Traversable || is_array($value);
+      }
       /**
        * Renders a template.
+       *
        * @param Twig_Environment $env
        * @param array            $context
        * @param string|array     $template      The template to render or an array of templates to try consecutively
        * @param array            $variables     The variables to pass to the template
        * @param bool             $withContext
        * @param bool             $ignoreMissing Whether to ignore missing templates or not
        * @param bool             $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)
+      {
           $alreadySandboxed = false;
           $sandbox = null;
           if ($withContext) {
               $variables = array_merge($context, $variables);
+          }
           if ($isSandboxed = $sandboxed && $env->hasExtension('sandbox')) {
               $sandbox = $env->getExtension('sandbox');
               if (!$alreadySandboxed = $sandbox->isSandboxed()) {
                   $sandbox->enableSandbox();
+              }
+          }
           $result = null;
           try {
               $result = $env->resolveTemplate($template)->render($variables);
           } catch (Twig_Error_Loader $e) {
               if (!$ignoreMissing) {
                   if ($isSandboxed && !$alreadySandboxed) {
                       $sandbox->disableSandbox();
+                  }
                   throw $e;
+              }
+          }
           if ($isSandboxed && !$alreadySandboxed) {
               $sandbox->disableSandbox();
+          }
           return $result;
+      }
       /**
        * Returns a template content without rendering it.
+       *
        * @param Twig_Environment $env
        * @param string           $name          The template name
        * @param bool             $ignoreMissing Whether to ignore missing templates or not
+       *
        * @return string The template source
        */
       function twig_source(Twig_Environment $env, $name, $ignoreMissing = false)
+      {
           try {
               return $env->getLoader()->getSource($name);
           } catch (Twig_Error_Loader $e) {
               if (!$ignoreMissing) {
                   throw $e;
+              }
+          }
+      }
       /**
        * 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 int   $size  The size of the batch
        * @param mixed $fill  A value used to fill missing items
+       *
        * @return array
        */
       function twig_array_batch($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 !== $fill && !empty($result)) {
               $last = count($result) - 1;
               if ($fillCount = $size - count($result[$last])) {
                   $result[$last] = array_merge(
                       $result[$last],
                       array_fill(0, $fillCount, $fill)
                   );
+              }
+          }
           return $result;
+      }

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