diff options
| author | Michael Save <savetheinternet@tinyboard.org> | 2012-04-09 20:52:26 +1000 |
|---|---|---|
| committer | Michael Save <savetheinternet@tinyboard.org> | 2012-04-09 20:52:26 +1000 |
| commit | 874b8cbf002e9d8bf0ff39671e1501165016320a (patch) | |
| tree | 1428acec23fef6c607e10fd355d88af31c2029ed /inc/contrib/Twig/Extension/Core.php | |
| parent | 69c9a9dd452299e0e8f7335966a1d0b4036df583 (diff) | |
inc/contrib -> inc/lib
Diffstat (limited to 'inc/contrib/Twig/Extension/Core.php')
| -rw-r--r-- | inc/contrib/Twig/Extension/Core.php | 846 |
1 files changed, 0 insertions, 846 deletions
diff --git a/inc/contrib/Twig/Extension/Core.php b/inc/contrib/Twig/Extension/Core.php deleted file mode 100644 index a4153245..00000000 --- a/inc/contrib/Twig/Extension/Core.php +++ /dev/null @@ -1,846 +0,0 @@ -<?php - -if (!defined('ENT_SUBSTITUTE')) { - define('ENT_SUBSTITUTE', 8); -} - -/* - * This file is part of Twig. - * - * (c) 2009 Fabien Potencier - * - * For the full copyright and license information, please view the LICENSE - * file that was distributed with this source code. - */ -class Twig_Extension_Core extends Twig_Extension -{ - /** - * Returns the token parser instance to add to the existing list. - * - * @return array An array of Twig_TokenParser instances - */ - public function getTokenParsers() - { - return array( - new Twig_TokenParser_For(), - new Twig_TokenParser_If(), - new Twig_TokenParser_Extends(), - new Twig_TokenParser_Include(), - new Twig_TokenParser_Block(), - new Twig_TokenParser_Use(), - new Twig_TokenParser_Filter(), - new Twig_TokenParser_Macro(), - new Twig_TokenParser_Import(), - new Twig_TokenParser_From(), - new Twig_TokenParser_Set(), - new Twig_TokenParser_Spaceless(), - ); - } - - /** - * Returns a list of filters to add to the existing list. - * - * @return array An array of filters - */ - public function getFilters() - { - $filters = array( - // formatting filters - 'date' => new Twig_Filter_Function('twig_date_format_filter'), - 'format' => new Twig_Filter_Function('sprintf'), - 'replace' => new Twig_Filter_Function('twig_strtr'), - - // encoding - 'url_encode' => new Twig_Filter_Function('twig_urlencode_filter'), - 'json_encode' => new Twig_Filter_Function('twig_jsonencode_filter'), - - // string filters - 'title' => new Twig_Filter_Function('twig_title_string_filter', array('needs_environment' => true)), - 'capitalize' => new Twig_Filter_Function('twig_capitalize_string_filter', array('needs_environment' => true)), - 'upper' => new Twig_Filter_Function('strtoupper'), - 'lower' => new Twig_Filter_Function('strtolower'), - 'striptags' => new Twig_Filter_Function('strip_tags'), - - // array helpers - 'join' => new Twig_Filter_Function('twig_join_filter'), - 'reverse' => new Twig_Filter_Function('twig_reverse_filter'), - 'length' => new Twig_Filter_Function('twig_length_filter', array('needs_environment' => true)), - 'sort' => new Twig_Filter_Function('twig_sort_filter'), - 'merge' => new Twig_Filter_Function('twig_array_merge'), - - // iteration and runtime - 'default' => new Twig_Filter_Function('twig_default_filter'), - 'keys' => new Twig_Filter_Function('twig_get_array_keys_filter'), - - // escaping - 'escape' => new Twig_Filter_Function('twig_escape_filter', array('needs_environment' => true, 'is_safe_callback' => 'twig_escape_filter_is_safe')), - 'e' => new Twig_Filter_Function('twig_escape_filter', array('needs_environment' => true, 'is_safe_callback' => 'twig_escape_filter_is_safe')), - ); - - if (function_exists('mb_get_info')) { - $filters['upper'] = new Twig_Filter_Function('twig_upper_filter', array('needs_environment' => true)); - $filters['lower'] = new Twig_Filter_Function('twig_lower_filter', array('needs_environment' => true)); - } - - return $filters; - } - - /** - * Returns a list of global functions to add to the existing list. - * - * @return array An array of global functions - */ - public function getFunctions() - { - return array( - 'range' => new Twig_Function_Function('range'), - 'constant' => new Twig_Function_Function('constant'), - 'cycle' => new Twig_Function_Function('twig_cycle'), - ); - } - - /** - * Returns a list of filters to add to the existing list. - * - * @return array An array of filters - */ - public function getTests() - { - return array( - 'even' => new Twig_Test_Function('twig_test_even'), - 'odd' => new Twig_Test_Function('twig_test_odd'), - 'defined' => new Twig_Test_Function('twig_test_defined'), - 'sameas' => new Twig_Test_Function('twig_test_sameas'), - 'none' => new Twig_Test_Function('twig_test_none'), - 'null' => new Twig_Test_Function('twig_test_none'), - 'divisibleby' => new Twig_Test_Function('twig_test_divisibleby'), - 'constant' => new Twig_Test_Function('twig_test_constant'), - 'empty' => new Twig_Test_Function('twig_test_empty'), - ); - } - - /** - * Returns a list of operators to add to the existing list. - * - * @return array An array of operators - */ - public function getOperators() - { - return array( - array( - 'not' => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Not'), - '-' => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Neg'), - '+' => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Pos'), - ), - array( - 'b-and' => array('precedence' => 5, 'class' => 'Twig_Node_Expression_Binary_BitwiseAnd', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - 'b-xor' => array('precedence' => 5, 'class' => 'Twig_Node_Expression_Binary_BitwiseXor', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - 'b-or' => array('precedence' => 5, 'class' => 'Twig_Node_Expression_Binary_BitwiseOr', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - '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), - '==' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Equal', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - '!=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - '<' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Less', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - '>' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Greater', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - '>=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_GreaterEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - '<=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_LessEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - 'not in' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotIn', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - 'in' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_In', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - '+' => array('precedence' => 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' => 110, 'class' => 'Twig_Node_Expression_Binary_Range', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT), - '**' => array('precedence' => 200, 'class' => 'Twig_Node_Expression_Binary_Power', 'associativity' => Twig_ExpressionParser::OPERATOR_RIGHT), - ), - ); - } - - public function parseNotTestExpression(Twig_Parser $parser, $node) - { - return new Twig_Node_Expression_Unary_Not($this->parseTestExpression($parser, $node), $parser->getCurrentToken()->getLine()); - } - - public function parseTestExpression(Twig_Parser $parser, $node) - { - $stream = $parser->getStream(); - $name = $stream->expect(Twig_Token::NAME_TYPE); - $arguments = null; - if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) { - $arguments = $parser->getExpressionParser()->parseArguments(); - } - - return new Twig_Node_Expression_Test($node, $name->getValue(), $arguments, $parser->getCurrentToken()->getLine()); - } - - /** - * Returns the name of the extension. - * - * @return string The extension name - */ - public function getName() - { - return 'core'; - } -} - -/** - * Cycles over a value. - * - * @param ArrayAccess|array $values An array or an ArrayAccess instance - * @param integer $i The cycle value - * - * @return string The next value in the cycle - */ -function twig_cycle($values, $i) -{ - if (!is_array($values) && !$values instanceof ArrayAccess) { - return $values; - } - - return $values[$i % count($values)]; -} - -/** - * Converts a date to the given format. - * - * <pre> - * {{ post.published_at|date("m/d/Y") }} - * </pre> - * - * @param DateTime|string $date A date - * @param string $format A format - * @param DateTimeZone|string $timezone A timezone - * - * @return string The formatter date - */ -function twig_date_format_filter($date, $format = 'F j, Y H:i', $timezone = null) -{ - if (!$date instanceof DateTime) { - if (ctype_digit((string) $date)) { - $date = new DateTime('@'.$date); - $date->setTimezone(new DateTimeZone(date_default_timezone_get())); - } else { - $date = new DateTime($date); - } - } - - if (null !== $timezone) { - if (!$timezone instanceof DateTimeZone) { - $timezone = new DateTimeZone($timezone); - } - - $date->setTimezone($timezone); - } - - return $date->format($format); -} - -/** - * URL encodes a string. - * - * @param string $url A URL - * @param bool $raw true to use rawurlencode() instead of urlencode - * - * @return string The URL encoded value - */ -function twig_urlencode_filter($url, $raw = false) -{ - if ($raw) { - return rawurlencode($url); - } - - return urlencode($url); -} - -if (version_compare(PHP_VERSION, '5.3.0', '<')) { - /** - * JSON encodes a PHP variable. - * - * @param mixed $value The value to encode. - * @param integer $options Not used on PHP 5.2.x - * - * @return mixed The JSON encoded value - */ - function twig_jsonencode_filter($value, $options = 0) - { - if ($value instanceof Twig_Markup) { - $value = (string) $value; - } elseif (is_array($value)) { - array_walk_recursive($value, '_twig_markup2string'); - } - - return json_encode($value); - } -} else { - /** - * JSON encodes a PHP variable. - * - * @param mixed $value The value to encode. - * @param integer $options Bitmask consisting of JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_NUMERIC_CHECK, JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, JSON_FORCE_OBJECT - * - * @return mixed The JSON encoded value - */ - function twig_jsonencode_filter($value, $options = 0) - { - if ($value instanceof Twig_Markup) { - $value = (string) $value; - } elseif (is_array($value)) { - array_walk_recursive($value, '_twig_markup2string'); - } - - return json_encode($value, $options); - } -} - -function _twig_markup2string(&$value) -{ - if ($value instanceof Twig_Markup) { - $value = (string) $value; - } -} - -/** - * Merges an array with another one. - * - * <pre> - * {% set items = { 'apple': 'fruit', 'orange': 'fruit' } %} - * - * {% set items = items|merge({ 'peugeot': 'car' }) %} - * - * {# items now contains { 'apple': 'fruit', 'orange': 'fruit', 'peugeot': 'car' } #} - * </pre> - * - * @param array $arr1 An array - * @param array $arr2 An array - * - * @return array The merged array - */ -function twig_array_merge($arr1, $arr2) -{ - if (!is_array($arr1) || !is_array($arr2)) { - throw new Twig_Error_Runtime('The merge filter only work with arrays or hashes.'); - } - - return array_merge($arr1, $arr2); -} - -/** - * 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, $glue = '') -{ - return implode($glue, (array) $value); -} - -/** - * Returns the value or the default value when it is undefined or empty. - * - * <pre> - * - * {{ var.foo|default('foo item on var is not defined') }} - * - * </pre> - * - * @param mixed $value A value - * @param mixed $default The default value - * - * @param mixed The value or the default value; - */ -function twig_default_filter($value, $default = '') -{ - if (twig_test_empty($value)) { - return $default; - } else { - return $value; - } -} - -/** - * Returns the keys for the given array. - * - * It is useful when you want to iterate over the keys of an array: - * - * <pre> - * {% for key in array|keys %} - * {# ... #} - * {% endfor %} - * </pre> - * - * @param array $array An array - * - * @return array The keys - */ -function twig_get_array_keys_filter($array) -{ - if (is_object($array) && $array instanceof Traversable) { - return array_keys(iterator_to_array($array)); - } - - if (!is_array($array)) { - return array(); - } - - return array_keys($array); -} - -/** - * Reverses an array. - * - * @param array|Traversable $array An array or a Traversable instance - * - * return array The array reversed - */ -function twig_reverse_filter($array) -{ - if (is_object($array) && $array instanceof Traversable) { - return array_reverse(iterator_to_array($array)); - } - - if (!is_array($array)) { - return array(); - } - - return array_reverse($array); -} - -/** - * Sorts an array. - * - * @param array $array An array - */ -function twig_sort_filter($array) -{ - asort($array); - - return $array; -} - -/* used internally */ -function twig_in_filter($value, $compare) -{ - if (is_array($compare)) { - return in_array($value, $compare); - } elseif (is_string($compare)) { - return false !== strpos($compare, (string) $value); - } elseif (is_object($compare) && $compare instanceof Traversable) { - return in_array($value, iterator_to_array($compare, false)); - } - - return false; -} - -/** - * Replaces placeholders in a string. - * - * <pre> - * {{ "I like %this% and %that%."|replace({'%this%': foo, '%that%': "bar"}) }} - * </pre> - * - * @param string $pattern A string - * @param string $replacements The values for the placeholders - * - * @return string The string where the placeholders have been replaced - */ -function twig_strtr($pattern, $replacements) -{ - return str_replace(array_keys($replacements), array_values($replacements), $pattern); -} - -/** - * Escapes a string. - * - * @param Twig_Environment $env A Twig_Environment instance - * @param string $string The value to be escaped - * @param string $type The escaping strategy - * @param string $charset The charset - */ -function twig_escape_filter(Twig_Environment $env, $string, $type = 'html', $charset = null) -{ - if (is_object($string) && $string instanceof Twig_Markup) { - return $string; - } - - if (!is_string($string) && !(is_object($string) && method_exists($string, '__toString'))) { - return $string; - } - - if (null === $charset) { - $charset = $env->getCharset(); - } - - switch ($type) { - 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 (null === $string = preg_replace_callback('#[^\p{L}\p{N} ]#u', '_twig_escape_js_callback', $string)) { - throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.'); - } - - if ('UTF-8' != $charset) { - $string = _twig_convert_encoding($string, $charset, 'UTF-8'); - } - - return $string; - - case 'html': - return htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, $charset); - - default: - throw new Twig_Error_Runtime(sprintf('Invalid escape type "%s".', $type)); - } -} - -/* used internally */ -function twig_escape_filter_is_safe(Twig_Node $filterArgs) -{ - foreach ($filterArgs as $arg) { - if ($arg instanceof Twig_Node_Expression_Constant) { - return array($arg->getAttribute('value')); - } else { - return array(); - } - - break; - } - - return array('html'); -} - -if (function_exists('iconv')) { - function _twig_convert_encoding($string, $to, $from) - { - return iconv($from, $to, $string); - } -} elseif (function_exists('mb_convert_encoding')) { - function _twig_convert_encoding($string, $to, $from) - { - return mb_convert_encoding($string, $to, $from); - } -} else { - function _twig_convert_encoding($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'.substr('00'.bin2hex($char), -2); - } - - // \uHHHH - $char = _twig_convert_encoding($char, 'UTF-16BE', 'UTF-8'); - - return '\\u'.substr('0000'.bin2hex($char), -4); -} - -// add multibyte extensions if possible -if (function_exists('mb_get_info')) { - /** - * Returns the length of a PHP variable. - * - * @param Twig_Environment $env A Twig_Environment instance - * @param mixed $thing A PHP variable - * - * @return integer The length of the value - */ - function twig_length_filter(Twig_Environment $env, $thing) - { - return is_scalar($thing) ? mb_strlen($thing, $env->getCharset()) : count($thing); - } - - /** - * Converts a string to uppercase. - * - * @param Twig_Environment $env A Twig_Environment instance - * @param string $string A string - * - * @return string The uppercased string - */ - function twig_upper_filter(Twig_Environment $env, $string) - { - if (null !== ($charset = $env->getCharset())) { - return mb_strtoupper($string, $charset); - } - - return strtoupper($string); - } - - /** - * Converts a string to lowercase. - * - * @param Twig_Environment $env A Twig_Environment instance - * @param string $string A string - * - * @return string The lowercased string - */ - function twig_lower_filter(Twig_Environment $env, $string) - { - if (null !== ($charset = $env->getCharset())) { - return mb_strtolower($string, $charset); - } - - return strtolower($string); - } - - /** - * Returns a titlecased string. - * - * @param Twig_Environment $env A Twig_Environment instance - * @param string $string A string - * - * @return string The titlecased string - */ - function twig_title_string_filter(Twig_Environment $env, $string) - { - if (null !== ($charset = $env->getCharset())) { - return mb_convert_case($string, MB_CASE_TITLE, $charset); - } - - return ucwords(strtolower($string)); - } - - /** - * Returns a capitalized string. - * - * @param Twig_Environment $env A Twig_Environment instance - * @param string $string A string - * - * @return string The capitalized string - */ - function twig_capitalize_string_filter(Twig_Environment $env, $string) - { - if (null !== ($charset = $env->getCharset())) { - return mb_strtoupper(mb_substr($string, 0, 1, $charset), $charset). - mb_strtolower(mb_substr($string, 1, mb_strlen($string, $charset), $charset), $charset); - } - - return ucfirst(strtolower($string)); - } -} -// and byte fallback -else -{ - /** - * Returns the length of a PHP variable. - * - * @param Twig_Environment $env A Twig_Environment instance - * @param mixed $thing A PHP variable - * - * @return integer The length of the value - */ - function twig_length_filter(Twig_Environment $env, $thing) - { - return is_scalar($thing) ? strlen($thing) : count($thing); - } - - /** - * Returns a titlecased string. - * - * @param Twig_Environment $env A Twig_Environment instance - * @param string $string A string - * - * @return string The titlecased string - */ - function twig_title_string_filter(Twig_Environment $env, $string) - { - return ucwords(strtolower($string)); - } - - /** - * Returns a capitalized string. - * - * @param Twig_Environment $env A Twig_Environment instance - * @param string $string A string - * - * @return string The capitalized string - */ - function twig_capitalize_string_filter(Twig_Environment $env, $string) - { - return ucfirst(strtolower($string)); - } -} - -/* used internally */ -function twig_ensure_traversable($seq) -{ - if (is_array($seq) || (is_object($seq) && $seq instanceof Traversable)) { - return $seq; - } else { - return array(); - } -} - -/** - * Checks that a variable points to the same memory address than another one. - * - * <pre> - * {% if foo.attribute is sameas(false) %} - * the foo attribute really is the ``false`` PHP value - * {% endif %} - * </pre> - * - * @param mixed $value A PHP variable - * @param mixed $test The PHP variable to test against - * - * @return Boolean true if the values are the same, false otherwise - */ -function twig_test_sameas($value, $test) -{ - return $value === $test; -} - -/** - * Checks that a variable is null. - * - * <pre> - * {{ var is none }} - * </pre> - * - * @param mixed $value a PHP variable. - * - * @return Boolean true if the value is null, false otherwise - */ -function twig_test_none($value) -{ - return null === $value; -} - -/** - * Checks if a variable is divisible by a number. - * - * <pre> - * {% if loop.index is divisibleby(3) %} - * </pre> - * - * @param integer $value A PHP value - * @param integer $num A number - * - * @return Boolean true if the value is divisible by the number, false otherwise - */ -function twig_test_divisibleby($value, $num) -{ - return 0 == $value % $num; -} - -/** - * Checks if a number is even. - * - * <pre> - * {{ var is even }} - * </pre> - * - * @param integer $value An integer - * - * @return Boolean true if the value is even, false otherwise - */ -function twig_test_even($value) -{ - return $value % 2 == 0; -} - -/** - * Checks if a number is odd. - * - * <pre> - * {{ var is odd }} - * </pre> - * - * @param integer $value An integer - * - * @return Boolean true if the value is odd, false otherwise - */ -function twig_test_odd($value) -{ - return $value % 2 == 1; -} - -/** - * Checks if a variable is the exact same value as a constant. - * - * <pre> - * {% if post.status is constant('Post::PUBLISHED') %} - * the status attribute is exactly the same as Post::PUBLISHED - * {% endif %} - * </pre> - * - * @param mixed $value A PHP value - * @param mixed $constant The constant to test against - * - * @return Boolean true if the value is the same as the constant, false otherwise - */ -function twig_test_constant($value, $constant) -{ - return constant($constant) === $value; -} - -/** - * Checks if a variable is defined in the current context. - * - * <pre> - * {# defined works with variable names #} - * {% if foo is defined %} - * {# ... #} - * {% endif %} - * </pre> - * - * @param mixed $name A PHP variable - * @param array $context The current context - * - * @return Boolean true if the value is defined, false otherwise - */ -function twig_test_defined($name, $context) -{ - return array_key_exists($name, $context); -} - -/** - * 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 $value A PHP variable - * - * @return Boolean true if the value is empty, false otherwise - */ -function twig_test_empty($value) -{ - if ($value instanceof Countable) { - return 0 == count($value); - } - return false === $value || (empty($value) && '0' != $value); -} |
