--- /dev/null
+<?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) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * @final
+ */
+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(),
+ new Twig_TokenParser_With(),
+ );
+ }
+
+ 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', 'twig_trim_filter'),
+ 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, 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+ 'is not' => array('precedence' => 100, '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 getName()
+ {
+ return 'core';
+ }
+}
+
+/**
+ * Cycles over a value.
+ *
+ * @param ArrayAccess|array $values
+ * @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
+ * @param Traversable|array|int|float|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
+ * @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('Twig_Extension_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
+ * @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
+ * @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 = $env->getExtension('Twig_Extension_Core')->getTimezone();
+ } elseif (!$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('Twig_Extension_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('Twig_Extension_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
+ * @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('Twig_Extension_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
+ * @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) {
+ while ($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
+ * @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
+ * @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
+ * @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 ($array instanceof Traversable) {
+ while ($array instanceof IteratorAggregate) {
+ $array = $array->getIterator();
+ }
+
+ if ($array instanceof Iterator) {
+ $keys = array();
+ $array->rewind();
+ while ($array->valid()) {
+ $keys[] = $array->key();
+ $array->next();
+ }
+
+ return $keys;
+ }
+
+ $keys = array();
+ foreach ($array as $key => $item) {
+ $keys[] = $key;
+ }
+
+ return $keys;
+ }
+
+ if (!is_array($array)) {
+ return array();
+ }
+
+ return array_keys($array);
+}
+
+/**
+ * Reverses a variable.
+ *
+ * @param Twig_Environment $env
+ * @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) {
+ if (is_object($value) || is_resource($value)) {
+ foreach ($compare as $item) {
+ if ($item === $value) {
+ return true;
+ }
+ }
+ } else {
+ foreach ($compare as $item) {
+ if ($item == $value) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ return false;
+}
+
+/**
+ * Returns a trimmed string.
+ *
+ * @return string
+ *
+ * @throws Twig_Error_Runtime When an invalid trimming side is used (not a string or not 'left', 'right', or 'both')
+ */
+function twig_trim_filter($string, $characterMask = null, $side = 'both')
+{
+ if (null === $characterMask) {
+ $characterMask = " \t\n\r\0\x0B";
+ }
+
+ switch ($side) {
+ case 'both':
+ return trim($string, $characterMask);
+ case 'left':
+ return ltrim($string, $characterMask);
+ case 'right':
+ return rtrim($string, $characterMask);
+ default:
+ throw new Twig_Error_Runtime('Trimming side must be "left", "right" or "both".');
+ }
+}
+
+/**
+ * Escapes a string.
+ *
+ * @param Twig_Environment $env
+ * @param mixed $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)) {
+ 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)) {
+ 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)) {
+ 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 = $env->getExtension('Twig_Extension_Core')->getEscapers();
+ }
+
+ if (isset($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');
+ $char = strtoupper(bin2hex($char));
+
+ if (4 >= strlen($char)) {
+ return sprintf('\u%04s', $char);
+ }
+
+ return sprintf('\u%04s\u%04s', substr($char, 0, -4), substr($char, -4));
+}
+
+function _twig_escape_css_callback($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(
+ 34 => 'quot', /* quotation mark */
+ 38 => 'amp', /* ampersand */
+ 60 => 'lt', /* less-than sign */
+ 62 => '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 && $ord <= 0x9f)) {
+ return '�';
+ }
+
+ /*
+ * Check if the current character to escape has a name entity we should
+ * replace it with while grabbing the hex value of the character.
+ */
+ if (strlen($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
+ * @param mixed $thing A variable
+ *
+ * @return int The length of the value
+ */
+ function twig_length_filter(Twig_Environment $env, $thing)
+ {
+ if (is_scalar($thing)) {
+ return mb_strlen($thing, $env->getCharset());
+ }
+
+ if (method_exists($thing, '__toString') && !$thing instanceof \Countable) {
+ return mb_strlen((string) $thing, $env->getCharset());
+ }
+
+ return count($thing);
+ }
+
+ /**
+ * Converts a string to uppercase.
+ *
+ * @param Twig_Environment $env
+ * @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
+ * @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
+ * @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
+ * @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
+ * @param mixed $thing A variable
+ *
+ * @return int The length of the value
+ */
+ function twig_length_filter(Twig_Environment $env, $thing)
+ {
+ if (is_scalar($thing)) {
+ return strlen($thing);
+ }
+
+ if (method_exists($thing, '__toString') && !$thing instanceof \Countable) {
+ return strlen((string) $thing);
+ }
+
+ return count($thing);
+ }
+
+ /**
+ * Returns a titlecased string.
+ *
+ * @param Twig_Environment $env
+ * @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
+ * @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);
+ }
+
+ if (method_exists($value, '__toString')) {
+ return '' === (string) $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('Twig_Extension_Sandbox')) {
+ $sandbox = $env->getExtension('Twig_Extension_Sandbox');
+ if (!$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;
+ }
+ } catch (Throwable $e) {
+ if ($isSandboxed && !$alreadySandboxed) {
+ $sandbox->disableSandbox();
+ }
+
+ throw $e;
+ } catch (Exception $e) {
+ if ($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)
+{
+ $loader = $env->getLoader();
+ try {
+ if (!$loader instanceof Twig_SourceContextLoaderInterface) {
+ return $loader->getSource($name);
+ } else {
+ return $loader->getSourceContext($name)->getCode();
+ }
+ } 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);
+}
+
+/**
+ * Checks if a constant exists.
+ *
+ * @param string $constant The name of the constant
+ * @param null|object $object The object to get the constant from
+ *
+ * @return bool
+ */
+function twig_constant_is_defined($constant, $object = null)
+{
+ if (null !== $object) {
+ $constant = get_class($object).'::'.$constant;
+ }
+
+ return defined($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;
+}
projects / yaffs-website / blobdiff