Verzeichnisstruktur phpBB-3.1.0
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Core.php
0001 <?php
0002
0003 if (!defined('ENT_SUBSTITUTE')) {
0004 define('ENT_SUBSTITUTE', 8);
0005 }
0006
0007 /*
0008 * This file is part of Twig.
0009 *
0010 * (c) 2009 Fabien Potencier
0011 *
0012 * For the full copyright and license information, please view the LICENSE
0013 * file that was distributed with this source code.
0014 */
0015 class Twig_Extension_Core extends Twig_Extension
0016 {
0017 protected $dateFormats = array('F j, Y H:i', '%d days');
0018 protected $numberFormat = array(0, '.', ',');
0019 protected $timezone = null;
0020
0021 /**
0022 * Sets the default format to be used by the date filter.
0023 *
0024 * @param string $format The default date format string
0025 * @param string $dateIntervalFormat The default date interval format string
0026 */
0027 public function setDateFormat($format = null, $dateIntervalFormat = null)
0028 {
0029 if (null !== $format) {
0030 $this->dateFormats[0] = $format;
0031 }
0032
0033 if (null !== $dateIntervalFormat) {
0034 $this->dateFormats[1] = $dateIntervalFormat;
0035 }
0036 }
0037
0038 /**
0039 * Gets the default format to be used by the date filter.
0040 *
0041 * @return array The default date format string and the default date interval format string
0042 */
0043 public function getDateFormat()
0044 {
0045 return $this->dateFormats;
0046 }
0047
0048 /**
0049 * Sets the default timezone to be used by the date filter.
0050 *
0051 * @param DateTimeZone|string $timezone The default timezone string or a DateTimeZone object
0052 */
0053 public function setTimezone($timezone)
0054 {
0055 $this->timezone = $timezone instanceof DateTimeZone ? $timezone : new DateTimeZone($timezone);
0056 }
0057
0058 /**
0059 * Gets the default timezone to be used by the date filter.
0060 *
0061 * @return DateTimeZone The default timezone currently in use
0062 */
0063 public function getTimezone()
0064 {
0065 if (null === $this->timezone) {
0066 $this->timezone = new DateTimeZone(date_default_timezone_get());
0067 }
0068
0069 return $this->timezone;
0070 }
0071
0072 /**
0073 * Sets the default format to be used by the number_format filter.
0074 *
0075 * @param integer $decimal The number of decimal places to use.
0076 * @param string $decimalPoint The character(s) to use for the decimal point.
0077 * @param string $thousandSep The character(s) to use for the thousands separator.
0078 */
0079 public function setNumberFormat($decimal, $decimalPoint, $thousandSep)
0080 {
0081 $this->numberFormat = array($decimal, $decimalPoint, $thousandSep);
0082 }
0083
0084 /**
0085 * Get the default format used by the number_format filter.
0086 *
0087 * @return array The arguments for number_format()
0088 */
0089 public function getNumberFormat()
0090 {
0091 return $this->numberFormat;
0092 }
0093
0094 /**
0095 * Returns the token parser instance to add to the existing list.
0096 *
0097 * @return array An array of Twig_TokenParser instances
0098 */
0099 public function getTokenParsers()
0100 {
0101 return array(
0102 new Twig_TokenParser_For(),
0103 new Twig_TokenParser_If(),
0104 new Twig_TokenParser_Extends(),
0105 new Twig_TokenParser_Include(),
0106 new Twig_TokenParser_Block(),
0107 new Twig_TokenParser_Use(),
0108 new Twig_TokenParser_Filter(),
0109 new Twig_TokenParser_Macro(),
0110 new Twig_TokenParser_Import(),
0111 new Twig_TokenParser_From(),
0112 new Twig_TokenParser_Set(),
0113 new Twig_TokenParser_Spaceless(),
0114 new Twig_TokenParser_Flush(),
0115 new Twig_TokenParser_Do(),
0116 new Twig_TokenParser_Embed(),
0117 );
0118 }
0119
0120 /**
0121 * Returns a list of filters to add to the existing list.
0122 *
0123 * @return array An array of filters
0124 */
0125 public function getFilters()
0126 {
0127 $filters = array(
0128 // formatting filters
0129 new Twig_SimpleFilter('date', 'twig_date_format_filter', array('needs_environment' => true)),
0130 new Twig_SimpleFilter('date_modify', 'twig_date_modify_filter', array('needs_environment' => true)),
0131 new Twig_SimpleFilter('format', 'sprintf'),
0132 new Twig_SimpleFilter('replace', 'strtr'),
0133 new Twig_SimpleFilter('number_format', 'twig_number_format_filter', array('needs_environment' => true)),
0134 new Twig_SimpleFilter('abs', 'abs'),
0135
0136 // encoding
0137 new Twig_SimpleFilter('url_encode', 'twig_urlencode_filter'),
0138 new Twig_SimpleFilter('json_encode', 'twig_jsonencode_filter'),
0139 new Twig_SimpleFilter('convert_encoding', 'twig_convert_encoding'),
0140
0141 // string filters
0142 new Twig_SimpleFilter('title', 'twig_title_string_filter', array('needs_environment' => true)),
0143 new Twig_SimpleFilter('capitalize', 'twig_capitalize_string_filter', array('needs_environment' => true)),
0144 new Twig_SimpleFilter('upper', 'strtoupper'),
0145 new Twig_SimpleFilter('lower', 'strtolower'),
0146 new Twig_SimpleFilter('striptags', 'strip_tags'),
0147 new Twig_SimpleFilter('trim', 'trim'),
0148 new Twig_SimpleFilter('nl2br', 'nl2br', array('pre_escape' => 'html', 'is_safe' => array('html'))),
0149
0150 // array helpers
0151 new Twig_SimpleFilter('join', 'twig_join_filter'),
0152 new Twig_SimpleFilter('split', 'twig_split_filter'),
0153 new Twig_SimpleFilter('sort', 'twig_sort_filter'),
0154 new Twig_SimpleFilter('merge', 'twig_array_merge'),
0155 new Twig_SimpleFilter('batch', 'twig_array_batch'),
0156
0157 // string/array filters
0158 new Twig_SimpleFilter('reverse', 'twig_reverse_filter', array('needs_environment' => true)),
0159 new Twig_SimpleFilter('length', 'twig_length_filter', array('needs_environment' => true)),
0160 new Twig_SimpleFilter('slice', 'twig_slice', array('needs_environment' => true)),
0161 new Twig_SimpleFilter('first', 'twig_first', array('needs_environment' => true)),
0162 new Twig_SimpleFilter('last', 'twig_last', array('needs_environment' => true)),
0163
0164 // iteration and runtime
0165 new Twig_SimpleFilter('default', '_twig_default_filter', array('node_class' => 'Twig_Node_Expression_Filter_Default')),
0166 new Twig_SimpleFilter('keys', 'twig_get_array_keys_filter'),
0167
0168 // escaping
0169 new Twig_SimpleFilter('escape', 'twig_escape_filter', array('needs_environment' => true, 'is_safe_callback' => 'twig_escape_filter_is_safe')),
0170 new Twig_SimpleFilter('e', 'twig_escape_filter', array('needs_environment' => true, 'is_safe_callback' => 'twig_escape_filter_is_safe')),
0171 );
0172
0173 if (function_exists('mb_get_info')) {
0174 $filters[] = new Twig_SimpleFilter('upper', 'twig_upper_filter', array('needs_environment' => true));
0175 $filters[] = new Twig_SimpleFilter('lower', 'twig_lower_filter', array('needs_environment' => true));
0176 }
0177
0178 return $filters;
0179 }
0180
0181 /**
0182 * Returns a list of global functions to add to the existing list.
0183 *
0184 * @return array An array of global functions
0185 */
0186 public function getFunctions()
0187 {
0188 return array(
0189 new Twig_SimpleFunction('range', 'range'),
0190 new Twig_SimpleFunction('constant', 'twig_constant'),
0191 new Twig_SimpleFunction('cycle', 'twig_cycle'),
0192 new Twig_SimpleFunction('random', 'twig_random', array('needs_environment' => true)),
0193 new Twig_SimpleFunction('date', 'twig_date_converter', array('needs_environment' => true)),
0194 new Twig_SimpleFunction('include', 'twig_include', array('needs_environment' => true, 'needs_context' => true, 'is_safe' => array('all'))),
0195 );
0196 }
0197
0198 /**
0199 * Returns a list of tests to add to the existing list.
0200 *
0201 * @return array An array of tests
0202 */
0203 public function getTests()
0204 {
0205 return array(
0206 new Twig_SimpleTest('even', null, array('node_class' => 'Twig_Node_Expression_Test_Even')),
0207 new Twig_SimpleTest('odd', null, array('node_class' => 'Twig_Node_Expression_Test_Odd')),
0208 new Twig_SimpleTest('defined', null, array('node_class' => 'Twig_Node_Expression_Test_Defined')),
0209 new Twig_SimpleTest('sameas', null, array('node_class' => 'Twig_Node_Expression_Test_Sameas')),
0210 new Twig_SimpleTest('none', null, array('node_class' => 'Twig_Node_Expression_Test_Null')),
0211 new Twig_SimpleTest('null', null, array('node_class' => 'Twig_Node_Expression_Test_Null')),
0212 new Twig_SimpleTest('divisibleby', null, array('node_class' => 'Twig_Node_Expression_Test_Divisibleby')),
0213 new Twig_SimpleTest('constant', null, array('node_class' => 'Twig_Node_Expression_Test_Constant')),
0214 new Twig_SimpleTest('empty', 'twig_test_empty'),
0215 new Twig_SimpleTest('iterable', 'twig_test_iterable'),
0216 );
0217 }
0218
0219 /**
0220 * Returns a list of operators to add to the existing list.
0221 *
0222 * @return array An array of operators
0223 */
0224 public function getOperators()
0225 {
0226 return array(
0227 array(
0228 'not' => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Not'),
0229 '-' => array('precedence' => 500, 'class' => 'Twig_Node_Expression_Unary_Neg'),
0230 '+' => array('precedence' => 500, 'class' => 'Twig_Node_Expression_Unary_Pos'),
0231 ),
0232 array(
0233 'or' => array('precedence' => 10, 'class' => 'Twig_Node_Expression_Binary_Or', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0234 'and' => array('precedence' => 15, 'class' => 'Twig_Node_Expression_Binary_And', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0235 'b-or' => array('precedence' => 16, 'class' => 'Twig_Node_Expression_Binary_BitwiseOr', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0236 'b-xor' => array('precedence' => 17, 'class' => 'Twig_Node_Expression_Binary_BitwiseXor', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0237 'b-and' => array('precedence' => 18, 'class' => 'Twig_Node_Expression_Binary_BitwiseAnd', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0238 '==' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Equal', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0239 '!=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0240 '<' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Less', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0241 '>' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Greater', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0242 '>=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_GreaterEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0243 '<=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_LessEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0244 'not in' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotIn', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0245 'in' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_In', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0246 '..' => array('precedence' => 25, 'class' => 'Twig_Node_Expression_Binary_Range', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0247 '+' => array('precedence' => 30, 'class' => 'Twig_Node_Expression_Binary_Add', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0248 '-' => array('precedence' => 30, 'class' => 'Twig_Node_Expression_Binary_Sub', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0249 '~' => array('precedence' => 40, 'class' => 'Twig_Node_Expression_Binary_Concat', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0250 '*' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Mul', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0251 '/' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Div', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0252 '//' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_FloorDiv', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0253 '%' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Mod', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0254 'is' => array('precedence' => 100, 'callable' => array($this, 'parseTestExpression'), 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0255 'is not' => array('precedence' => 100, 'callable' => array($this, 'parseNotTestExpression'), 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
0256 '**' => array('precedence' => 200, 'class' => 'Twig_Node_Expression_Binary_Power', 'associativity' => Twig_ExpressionParser::OPERATOR_RIGHT),
0257 ),
0258 );
0259 }
0260
0261 public function parseNotTestExpression(Twig_Parser $parser, $node)
0262 {
0263 return new Twig_Node_Expression_Unary_Not($this->parseTestExpression($parser, $node), $parser->getCurrentToken()->getLine());
0264 }
0265
0266 public function parseTestExpression(Twig_Parser $parser, $node)
0267 {
0268 $stream = $parser->getStream();
0269 $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
0270 $arguments = null;
0271 if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
0272 $arguments = $parser->getExpressionParser()->parseArguments(true);
0273 }
0274
0275 $class = $this->getTestNodeClass($parser, $name, $node->getLine());
0276
0277 return new $class($node, $name, $arguments, $parser->getCurrentToken()->getLine());
0278 }
0279
0280 protected function getTestNodeClass(Twig_Parser $parser, $name, $line)
0281 {
0282 $env = $parser->getEnvironment();
0283 $testMap = $env->getTests();
0284 if (!isset($testMap[$name])) {
0285 $message = sprintf('The test "%s" does not exist', $name);
0286 if ($alternatives = $env->computeAlternatives($name, array_keys($env->getTests()))) {
0287 $message = sprintf('%s. Did you mean "%s"', $message, implode('", "', $alternatives));
0288 }
0289
0290 throw new Twig_Error_Syntax($message, $line, $parser->getFilename());
0291 }
0292
0293 if ($testMap[$name] instanceof Twig_SimpleTest) {
0294 return $testMap[$name]->getNodeClass();
0295 }
0296
0297 return $testMap[$name] instanceof Twig_Test_Node ? $testMap[$name]->getClass() : 'Twig_Node_Expression_Test';
0298 }
0299
0300 /**
0301 * Returns the name of the extension.
0302 *
0303 * @return string The extension name
0304 */
0305 public function getName()
0306 {
0307 return 'core';
0308 }
0309 }
0310
0311 /**
0312 * Cycles over a value.
0313 *
0314 * @param ArrayAccess|array $values An array or an ArrayAccess instance
0315 * @param integer $position The cycle position
0316 *
0317 * @return string The next value in the cycle
0318 */
0319 function twig_cycle($values, $position)
0320 {
0321 if (!is_array($values) && !$values instanceof ArrayAccess) {
0322 return $values;
0323 }
0324
0325 return $values[$position % count($values)];
0326 }
0327
0328 /**
0329 * Returns a random value depending on the supplied parameter type:
0330 * - a random item from a Traversable or array
0331 * - a random character from a string
0332 * - a random integer between 0 and the integer parameter
0333 *
0334 * @param Twig_Environment $env A Twig_Environment instance
0335 * @param Traversable|array|integer|string $values The values to pick a random item from
0336 *
0337 * @throws Twig_Error_Runtime When $values is an empty array (does not apply to an empty string which is returned as is).
0338 *
0339 * @return mixed A random value from the given sequence
0340 */
0341 function twig_random(Twig_Environment $env, $values = null)
0342 {
0343 if (null === $values) {
0344 return mt_rand();
0345 }
0346
0347 if (is_int($values) || is_float($values)) {
0348 return $values < 0 ? mt_rand($values, 0) : mt_rand(0, $values);
0349 }
0350
0351 if ($values instanceof Traversable) {
0352 $values = iterator_to_array($values);
0353 } elseif (is_string($values)) {
0354 if ('' === $values) {
0355 return '';
0356 }
0357 if (null !== $charset = $env->getCharset()) {
0358 if ('UTF-8' != $charset) {
0359 $values = twig_convert_encoding($values, 'UTF-8', $charset);
0360 }
0361
0362 // unicode version of str_split()
0363 // split at all positions, but not after the start and not before the end
0364 $values = preg_split('/(?<!^)(?!$)/u', $values);
0365
0366 if ('UTF-8' != $charset) {
0367 foreach ($values as $i => $value) {
0368 $values[$i] = twig_convert_encoding($value, $charset, 'UTF-8');
0369 }
0370 }
0371 } else {
0372 return $values[mt_rand(0, strlen($values) - 1)];
0373 }
0374 }
0375
0376 if (!is_array($values)) {
0377 return $values;
0378 }
0379
0380 if (0 === count($values)) {
0381 throw new Twig_Error_Runtime('The random function cannot pick from an empty array.');
0382 }
0383
0384 return $values[array_rand($values, 1)];
0385 }
0386
0387 /**
0388 * Converts a date to the given format.
0389 *
0390 * <pre>
0391 * {{ post.published_at|date("m/d/Y") }}
0392 * </pre>
0393 *
0394 * @param Twig_Environment $env A Twig_Environment instance
0395 * @param DateTime|DateInterval|string $date A date
0396 * @param string $format A format
0397 * @param DateTimeZone|string $timezone A timezone
0398 *
0399 * @return string The formatted date
0400 */
0401 function twig_date_format_filter(Twig_Environment $env, $date, $format = null, $timezone = null)
0402 {
0403 if (null === $format) {
0404 $formats = $env->getExtension('core')->getDateFormat();
0405 $format = $date instanceof DateInterval ? $formats[1] : $formats[0];
0406 }
0407
0408 if ($date instanceof DateInterval) {
0409 return $date->format($format);
0410 }
0411
0412 return twig_date_converter($env, $date, $timezone)->format($format);
0413 }
0414
0415 /**
0416 * Returns a new date object modified
0417 *
0418 * <pre>
0419 * {{ post.published_at|date_modify("-1day")|date("m/d/Y") }}
0420 * </pre>
0421 *
0422 * @param Twig_Environment $env A Twig_Environment instance
0423 * @param DateTime|string $date A date
0424 * @param string $modifier A modifier string
0425 *
0426 * @return DateTime A new date object
0427 */
0428 function twig_date_modify_filter(Twig_Environment $env, $date, $modifier)
0429 {
0430 $date = twig_date_converter($env, $date, false);
0431 $date->modify($modifier);
0432
0433 return $date;
0434 }
0435
0436 /**
0437 * Converts an input to a DateTime instance.
0438 *
0439 * <pre>
0440 * {% if date(user.created_at) < date('+2days') %}
0441 * {# do something #}
0442 * {% endif %}
0443 * </pre>
0444 *
0445 * @param Twig_Environment $env A Twig_Environment instance
0446 * @param DateTime|string $date A date
0447 * @param DateTimeZone|string $timezone A timezone
0448 *
0449 * @return DateTime A DateTime instance
0450 */
0451 function twig_date_converter(Twig_Environment $env, $date = null, $timezone = null)
0452 {
0453 // determine the timezone
0454 if (!$timezone) {
0455 $defaultTimezone = $env->getExtension('core')->getTimezone();
0456 } elseif (!$timezone instanceof DateTimeZone) {
0457 $defaultTimezone = new DateTimeZone($timezone);
0458 } else {
0459 $defaultTimezone = $timezone;
0460 }
0461
0462 if ($date instanceof DateTime) {
0463 $date = clone $date;
0464 if (false !== $timezone) {
0465 $date->setTimezone($defaultTimezone);
0466 }
0467
0468 return $date;
0469 }
0470
0471 $asString = (string) $date;
0472 if (ctype_digit($asString) || (!empty($asString) && '-' === $asString[0] && ctype_digit(substr($asString, 1)))) {
0473 $date = '@'.$date;
0474 }
0475
0476 $date = new DateTime($date, $defaultTimezone);
0477 if (false !== $timezone) {
0478 $date->setTimezone($defaultTimezone);
0479 }
0480
0481 return $date;
0482 }
0483
0484 /**
0485 * Number format filter.
0486 *
0487 * All of the formatting options can be left null, in that case the defaults will
0488 * be used. Supplying any of the parameters will override the defaults set in the
0489 * environment object.
0490 *
0491 * @param Twig_Environment $env A Twig_Environment instance
0492 * @param mixed $number A float/int/string of the number to format
0493 * @param integer $decimal The number of decimal points to display.
0494 * @param string $decimalPoint The character(s) to use for the decimal point.
0495 * @param string $thousandSep The character(s) to use for the thousands separator.
0496 *
0497 * @return string The formatted number
0498 */
0499 function twig_number_format_filter(Twig_Environment $env, $number, $decimal = null, $decimalPoint = null, $thousandSep = null)
0500 {
0501 $defaults = $env->getExtension('core')->getNumberFormat();
0502 if (null === $decimal) {
0503 $decimal = $defaults[0];
0504 }
0505
0506 if (null === $decimalPoint) {
0507 $decimalPoint = $defaults[1];
0508 }
0509
0510 if (null === $thousandSep) {
0511 $thousandSep = $defaults[2];
0512 }
0513
0514 return number_format((float) $number, $decimal, $decimalPoint, $thousandSep);
0515 }
0516
0517 /**
0518 * URL encodes a string as a path segment or an array as a query string.
0519 *
0520 * @param string|array $url A URL or an array of query parameters
0521 * @param bool $raw true to use rawurlencode() instead of urlencode
0522 *
0523 * @return string The URL encoded value
0524 */
0525 function twig_urlencode_filter($url, $raw = false)
0526 {
0527 if (is_array($url)) {
0528 return http_build_query($url, '', '&');
0529 }
0530
0531 if ($raw) {
0532 return rawurlencode($url);
0533 }
0534
0535 return urlencode($url);
0536 }
0537
0538 if (version_compare(PHP_VERSION, '5.3.0', '<')) {
0539 /**
0540 * JSON encodes a variable.
0541 *
0542 * @param mixed $value The value to encode.
0543 * @param integer $options Not used on PHP 5.2.x
0544 *
0545 * @return mixed The JSON encoded value
0546 */
0547 function twig_jsonencode_filter($value, $options = 0)
0548 {
0549 if ($value instanceof Twig_Markup) {
0550 $value = (string) $value;
0551 } elseif (is_array($value)) {
0552 array_walk_recursive($value, '_twig_markup2string');
0553 }
0554
0555 return json_encode($value);
0556 }
0557 } else {
0558 /**
0559 * JSON encodes a variable.
0560 *
0561 * @param mixed $value The value to encode.
0562 * @param integer $options Bitmask consisting of JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_NUMERIC_CHECK, JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, JSON_FORCE_OBJECT
0563 *
0564 * @return mixed The JSON encoded value
0565 */
0566 function twig_jsonencode_filter($value, $options = 0)
0567 {
0568 if ($value instanceof Twig_Markup) {
0569 $value = (string) $value;
0570 } elseif (is_array($value)) {
0571 array_walk_recursive($value, '_twig_markup2string');
0572 }
0573
0574 return json_encode($value, $options);
0575 }
0576 }
0577
0578 function _twig_markup2string(&$value)
0579 {
0580 if ($value instanceof Twig_Markup) {
0581 $value = (string) $value;
0582 }
0583 }
0584
0585 /**
0586 * Merges an array with another one.
0587 *
0588 * <pre>
0589 * {% set items = { 'apple': 'fruit', 'orange': 'fruit' } %}
0590 *
0591 * {% set items = items|merge({ 'peugeot': 'car' }) %}
0592 *
0593 * {# items now contains { 'apple': 'fruit', 'orange': 'fruit', 'peugeot': 'car' } #}
0594 * </pre>
0595 *
0596 * @param array $arr1 An array
0597 * @param array $arr2 An array
0598 *
0599 * @return array The merged array
0600 */
0601 function twig_array_merge($arr1, $arr2)
0602 {
0603 if (!is_array($arr1) || !is_array($arr2)) {
0604 throw new Twig_Error_Runtime('The merge filter only works with arrays or hashes.');
0605 }
0606
0607 return array_merge($arr1, $arr2);
0608 }
0609
0610 /**
0611 * Slices a variable.
0612 *
0613 * @param Twig_Environment $env A Twig_Environment instance
0614 * @param mixed $item A variable
0615 * @param integer $start Start of the slice
0616 * @param integer $length Size of the slice
0617 * @param Boolean $preserveKeys Whether to preserve key or not (when the input is an array)
0618 *
0619 * @return mixed The sliced variable
0620 */
0621 function twig_slice(Twig_Environment $env, $item, $start, $length = null, $preserveKeys = false)
0622 {
0623 if ($item instanceof Traversable) {
0624 $item = iterator_to_array($item, false);
0625 }
0626
0627 if (is_array($item)) {
0628 return array_slice($item, $start, $length, $preserveKeys);
0629 }
0630
0631 $item = (string) $item;
0632
0633 if (function_exists('mb_get_info') && null !== $charset = $env->getCharset()) {
0634 return mb_substr($item, $start, null === $length ? mb_strlen($item, $charset) - $start : $length, $charset);
0635 }
0636
0637 return null === $length ? substr($item, $start) : substr($item, $start, $length);
0638 }
0639
0640 /**
0641 * Returns the first element of the item.
0642 *
0643 * @param Twig_Environment $env A Twig_Environment instance
0644 * @param mixed $item A variable
0645 *
0646 * @return mixed The first element of the item
0647 */
0648 function twig_first(Twig_Environment $env, $item)
0649 {
0650 $elements = twig_slice($env, $item, 0, 1, false);
0651
0652 return is_string($elements) ? $elements[0] : current($elements);
0653 }
0654
0655 /**
0656 * Returns the last element of the item.
0657 *
0658 * @param Twig_Environment $env A Twig_Environment instance
0659 * @param mixed $item A variable
0660 *
0661 * @return mixed The last element of the item
0662 */
0663 function twig_last(Twig_Environment $env, $item)
0664 {
0665 $elements = twig_slice($env, $item, -1, 1, false);
0666
0667 return is_string($elements) ? $elements[0] : current($elements);
0668 }
0669
0670 /**
0671 * Joins the values to a string.
0672 *
0673 * The separator between elements is an empty string per default, you can define it with the optional parameter.
0674 *
0675 * <pre>
0676 * {{ [1, 2, 3]|join('|') }}
0677 * {# returns 1|2|3 #}
0678 *
0679 * {{ [1, 2, 3]|join }}
0680 * {# returns 123 #}
0681 * </pre>
0682 *
0683 * @param array $value An array
0684 * @param string $glue The separator
0685 *
0686 * @return string The concatenated string
0687 */
0688 function twig_join_filter($value, $glue = '')
0689 {
0690 if ($value instanceof Traversable) {
0691 $value = iterator_to_array($value, false);
0692 }
0693
0694 return implode($glue, (array) $value);
0695 }
0696
0697 /**
0698 * Splits the string into an array.
0699 *
0700 * <pre>
0701 * {{ "one,two,three"|split(',') }}
0702 * {# returns [one, two, three] #}
0703 *
0704 * {{ "one,two,three,four,five"|split(',', 3) }}
0705 * {# returns [one, two, "three,four,five"] #}
0706 *
0707 * {{ "123"|split('') }}
0708 * {# returns [1, 2, 3] #}
0709 *
0710 * {{ "aabbcc"|split('', 2) }}
0711 * {# returns [aa, bb, cc] #}
0712 * </pre>
0713 *
0714 * @param string $value A string
0715 * @param string $delimiter The delimiter
0716 * @param integer $limit The limit
0717 *
0718 * @return array The split string as an array
0719 */
0720 function twig_split_filter($value, $delimiter, $limit = null)
0721 {
0722 if (empty($delimiter)) {
0723 return str_split($value, null === $limit ? 1 : $limit);
0724 }
0725
0726 return null === $limit ? explode($delimiter, $value) : explode($delimiter, $value, $limit);
0727 }
0728
0729 // The '_default' filter is used internally to avoid using the ternary operator
0730 // which costs a lot for big contexts (before PHP 5.4). So, on average,
0731 // a function call is cheaper.
0732 function _twig_default_filter($value, $default = '')
0733 {
0734 if (twig_test_empty($value)) {
0735 return $default;
0736 }
0737
0738 return $value;
0739 }
0740
0741 /**
0742 * Returns the keys for the given array.
0743 *
0744 * It is useful when you want to iterate over the keys of an array:
0745 *
0746 * <pre>
0747 * {% for key in array|keys %}
0748 * {# ... #}
0749 * {% endfor %}
0750 * </pre>
0751 *
0752 * @param array $array An array
0753 *
0754 * @return array The keys
0755 */
0756 function twig_get_array_keys_filter($array)
0757 {
0758 if (is_object($array) && $array instanceof Traversable) {
0759 return array_keys(iterator_to_array($array));
0760 }
0761
0762 if (!is_array($array)) {
0763 return array();
0764 }
0765
0766 return array_keys($array);
0767 }
0768
0769 /**
0770 * Reverses a variable.
0771 *
0772 * @param Twig_Environment $env A Twig_Environment instance
0773 * @param array|Traversable|string $item An array, a Traversable instance, or a string
0774 * @param Boolean $preserveKeys Whether to preserve key or not
0775 *
0776 * @return mixed The reversed input
0777 */
0778 function twig_reverse_filter(Twig_Environment $env, $item, $preserveKeys = false)
0779 {
0780 if (is_object($item) && $item instanceof Traversable) {
0781 return array_reverse(iterator_to_array($item), $preserveKeys);
0782 }
0783
0784 if (is_array($item)) {
0785 return array_reverse($item, $preserveKeys);
0786 }
0787
0788 if (null !== $charset = $env->getCharset()) {
0789 $string = (string) $item;
0790
0791 if ('UTF-8' != $charset) {
0792 $item = twig_convert_encoding($string, 'UTF-8', $charset);
0793 }
0794
0795 preg_match_all('/./us', $item, $matches);
0796
0797 $string = implode('', array_reverse($matches[0]));
0798
0799 if ('UTF-8' != $charset) {
0800 $string = twig_convert_encoding($string, $charset, 'UTF-8');
0801 }
0802
0803 return $string;
0804 }
0805
0806 return strrev((string) $item);
0807 }
0808
0809 /**
0810 * Sorts an array.
0811 *
0812 * @param array $array An array
0813 */
0814 function twig_sort_filter($array)
0815 {
0816 asort($array);
0817
0818 return $array;
0819 }
0820
0821 /* used internally */
0822 function twig_in_filter($value, $compare)
0823 {
0824 if (is_array($compare)) {
0825 return in_array($value, $compare, is_object($value));
0826 } elseif (is_string($compare)) {
0827 if (!strlen($value)) {
0828 return empty($compare);
0829 }
0830
0831 return false !== strpos($compare, (string) $value);
0832 } elseif ($compare instanceof Traversable) {
0833 return in_array($value, iterator_to_array($compare, false), is_object($value));
0834 }
0835
0836 return false;
0837 }
0838
0839 /**
0840 * Escapes a string.
0841 *
0842 * @param Twig_Environment $env A Twig_Environment instance
0843 * @param string $string The value to be escaped
0844 * @param string $strategy The escaping strategy
0845 * @param string $charset The charset
0846 * @param Boolean $autoescape Whether the function is called by the auto-escaping feature (true) or by the developer (false)
0847 */
0848 function twig_escape_filter(Twig_Environment $env, $string, $strategy = 'html', $charset = null, $autoescape = false)
0849 {
0850 if ($autoescape && $string instanceof Twig_Markup) {
0851 return $string;
0852 }
0853
0854 if (!is_string($string)) {
0855 if (is_object($string) && method_exists($string, '__toString')) {
0856 $string = (string) $string;
0857 } else {
0858 return $string;
0859 }
0860 }
0861
0862 if (null === $charset) {
0863 $charset = $env->getCharset();
0864 }
0865
0866 switch ($strategy) {
0867 case 'html':
0868 // see http://php.net/htmlspecialchars
0869
0870 // Using a static variable to avoid initializing the array
0871 // each time the function is called. Moving the declaration on the
0872 // top of the function slow downs other escaping strategies.
0873 static $htmlspecialcharsCharsets = array(
0874 'ISO-8859-1' => true, 'ISO8859-1' => true,
0875 'ISO-8859-15' => true, 'ISO8859-15' => true,
0876 'utf-8' => true, 'UTF-8' => true,
0877 'CP866' => true, 'IBM866' => true, '866' => true,
0878 'CP1251' => true, 'WINDOWS-1251' => true, 'WIN-1251' => true,
0879 '1251' => true,
0880 'CP1252' => true, 'WINDOWS-1252' => true, '1252' => true,
0881 'KOI8-R' => true, 'KOI8-RU' => true, 'KOI8R' => true,
0882 'BIG5' => true, '950' => true,
0883 'GB2312' => true, '936' => true,
0884 'BIG5-HKSCS' => true,
0885 'SHIFT_JIS' => true, 'SJIS' => true, '932' => true,
0886 'EUC-JP' => true, 'EUCJP' => true,
0887 'ISO8859-5' => true, 'ISO-8859-5' => true, 'MACROMAN' => true,
0888 );
0889
0890 if (isset($htmlspecialcharsCharsets[$charset])) {
0891 return htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, $charset);
0892 }
0893
0894 if (isset($htmlspecialcharsCharsets[strtoupper($charset)])) {
0895 // cache the lowercase variant for future iterations
0896 $htmlspecialcharsCharsets[$charset] = true;
0897
0898 return htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, $charset);
0899 }
0900
0901 $string = twig_convert_encoding($string, 'UTF-8', $charset);
0902 $string = htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
0903
0904 return twig_convert_encoding($string, $charset, 'UTF-8');
0905
0906 case 'js':
0907 // escape all non-alphanumeric characters
0908 // into their \xHH or \uHHHH representations
0909 if ('UTF-8' != $charset) {
0910 $string = twig_convert_encoding($string, 'UTF-8', $charset);
0911 }
0912
0913 if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) {
0914 throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.');
0915 }
0916
0917 $string = preg_replace_callback('#[^a-zA-Z0-9,\._]#Su', '_twig_escape_js_callback', $string);
0918
0919 if ('UTF-8' != $charset) {
0920 $string = twig_convert_encoding($string, $charset, 'UTF-8');
0921 }
0922
0923 return $string;
0924
0925 case 'css':
0926 if ('UTF-8' != $charset) {
0927 $string = twig_convert_encoding($string, 'UTF-8', $charset);
0928 }
0929
0930 if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) {
0931 throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.');
0932 }
0933
0934 $string = preg_replace_callback('#[^a-zA-Z0-9]#Su', '_twig_escape_css_callback', $string);
0935
0936 if ('UTF-8' != $charset) {
0937 $string = twig_convert_encoding($string, $charset, 'UTF-8');
0938 }
0939
0940 return $string;
0941
0942 case 'html_attr':
0943 if ('UTF-8' != $charset) {
0944 $string = twig_convert_encoding($string, 'UTF-8', $charset);
0945 }
0946
0947 if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) {
0948 throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.');
0949 }
0950
0951 $string = preg_replace_callback('#[^a-zA-Z0-9,\.\-_]#Su', '_twig_escape_html_attr_callback', $string);
0952
0953 if ('UTF-8' != $charset) {
0954 $string = twig_convert_encoding($string, $charset, 'UTF-8');
0955 }
0956
0957 return $string;
0958
0959 case 'url':
0960 // hackish test to avoid version_compare that is much slower, this works unless PHP releases a 5.10.*
0961 // at that point however PHP 5.2.* support can be removed
0962 if (PHP_VERSION < '5.3.0') {
0963 return str_replace('%7E', '~', rawurlencode($string));
0964 }
0965
0966 return rawurlencode($string);
0967
0968 default:
0969 throw new Twig_Error_Runtime(sprintf('Invalid escaping strategy "%s" (valid ones: html, js, url, css, and html_attr).', $strategy));
0970 }
0971 }
0972
0973 /* used internally */
0974 function twig_escape_filter_is_safe(Twig_Node $filterArgs)
0975 {
0976 foreach ($filterArgs as $arg) {
0977 if ($arg instanceof Twig_Node_Expression_Constant) {
0978 return array($arg->getAttribute('value'));
0979 }
0980
0981 return array();
0982 }
0983
0984 return array('html');
0985 }
0986
0987 if (function_exists('mb_convert_encoding')) {
0988 function twig_convert_encoding($string, $to, $from)
0989 {
0990 return mb_convert_encoding($string, $to, $from);
0991 }
0992 } elseif (function_exists('iconv')) {
0993 function twig_convert_encoding($string, $to, $from)
0994 {
0995 return iconv($from, $to, $string);
0996 }
0997 } else {
0998 function twig_convert_encoding($string, $to, $from)
0999 {
1000 throw new Twig_Error_Runtime('No suitable convert encoding function (use UTF-8 as your encoding or install the iconv or mbstring extension).');
1001 }
1002 }
1003
1004 function _twig_escape_js_callback($matches)
1005 {
1006 $char = $matches[0];
1007
1008 // \xHH
1009 if (!isset($char[1])) {
1010 return '\\x'.strtoupper(substr('00'.bin2hex($char), -2));
1011 }
1012
1013 // \uHHHH
1014 $char = twig_convert_encoding($char, 'UTF-16BE', 'UTF-8');
1015
1016 return '\\u'.strtoupper(substr('0000'.bin2hex($char), -4));
1017 }
1018
1019 function _twig_escape_css_callback($matches)
1020 {
1021 $char = $matches[0];
1022
1023 // \xHH
1024 if (!isset($char[1])) {
1025 $hex = ltrim(strtoupper(bin2hex($char)), '0');
1026 if (0 === strlen($hex)) {
1027 $hex = '0';
1028 }
1029
1030 return '\\'.$hex.' ';
1031 }
1032
1033 // \uHHHH
1034 $char = twig_convert_encoding($char, 'UTF-16BE', 'UTF-8');
1035
1036 return '\\'.ltrim(strtoupper(bin2hex($char)), '0').' ';
1037 }
1038
1039 /**
1040 * This function is adapted from code coming from Zend Framework.
1041 *
1042 * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
1043 * @license http://framework.zend.com/license/new-bsd New BSD License
1044 */
1045 function _twig_escape_html_attr_callback($matches)
1046 {
1047 /*
1048 * While HTML supports far more named entities, the lowest common denominator
1049 * has become HTML5's XML Serialisation which is restricted to the those named
1050 * entities that XML supports. Using HTML entities would result in this error:
1051 * XML Parsing Error: undefined entity
1052 */
1053 static $entityMap = array(
1054 34 => 'quot', /* quotation mark */
1055 38 => 'amp', /* ampersand */
1056 60 => 'lt', /* less-than sign */
1057 62 => 'gt', /* greater-than sign */
1058 );
1059
1060 $chr = $matches[0];
1061 $ord = ord($chr);
1062
1063 /**
1064 * The following replaces characters undefined in HTML with the
1065 * hex entity for the Unicode replacement character.
1066 */
1067 if (($ord <= 0x1f && $chr != "\t" && $chr != "\n" && $chr != "\r") || ($ord >= 0x7f && $ord <= 0x9f)) {
1068 return '�';
1069 }
1070
1071 /**
1072 * Check if the current character to escape has a name entity we should
1073 * replace it with while grabbing the hex value of the character.
1074 */
1075 if (strlen($chr) == 1) {
1076 $hex = strtoupper(substr('00'.bin2hex($chr), -2));
1077 } else {
1078 $chr = twig_convert_encoding($chr, 'UTF-16BE', 'UTF-8');
1079 $hex = strtoupper(substr('0000'.bin2hex($chr), -4));
1080 }
1081
1082 $int = hexdec($hex);
1083 if (array_key_exists($int, $entityMap)) {
1084 return sprintf('&%s;', $entityMap[$int]);
1085 }
1086
1087 /**
1088 * Per OWASP recommendations, we'll use hex entities for any other
1089 * characters where a named entity does not exist.
1090 */
1091
1092 return sprintf('&#x%s;', $hex);
1093 }
1094
1095 // add multibyte extensions if possible
1096 if (function_exists('mb_get_info')) {
1097 /**
1098 * Returns the length of a variable.
1099 *
1100 * @param Twig_Environment $env A Twig_Environment instance
1101 * @param mixed $thing A variable
1102 *
1103 * @return integer The length of the value
1104 */
1105 function twig_length_filter(Twig_Environment $env, $thing)
1106 {
1107 return is_scalar($thing) ? mb_strlen($thing, $env->getCharset()) : count($thing);
1108 }
1109
1110 /**
1111 * Converts a string to uppercase.
1112 *
1113 * @param Twig_Environment $env A Twig_Environment instance
1114 * @param string $string A string
1115 *
1116 * @return string The uppercased string
1117 */
1118 function twig_upper_filter(Twig_Environment $env, $string)
1119 {
1120 if (null !== ($charset = $env->getCharset())) {
1121 return mb_strtoupper($string, $charset);
1122 }
1123
1124 return strtoupper($string);
1125 }
1126
1127 /**
1128 * Converts a string to lowercase.
1129 *
1130 * @param Twig_Environment $env A Twig_Environment instance
1131 * @param string $string A string
1132 *
1133 * @return string The lowercased string
1134 */
1135 function twig_lower_filter(Twig_Environment $env, $string)
1136 {
1137 if (null !== ($charset = $env->getCharset())) {
1138 return mb_strtolower($string, $charset);
1139 }
1140
1141 return strtolower($string);
1142 }
1143
1144 /**
1145 * Returns a titlecased string.
1146 *
1147 * @param Twig_Environment $env A Twig_Environment instance
1148 * @param string $string A string
1149 *
1150 * @return string The titlecased string
1151 */
1152 function twig_title_string_filter(Twig_Environment $env, $string)
1153 {
1154 if (null !== ($charset = $env->getCharset())) {
1155 return mb_convert_case($string, MB_CASE_TITLE, $charset);
1156 }
1157
1158 return ucwords(strtolower($string));
1159 }
1160
1161 /**
1162 * Returns a capitalized string.
1163 *
1164 * @param Twig_Environment $env A Twig_Environment instance
1165 * @param string $string A string
1166 *
1167 * @return string The capitalized string
1168 */
1169 function twig_capitalize_string_filter(Twig_Environment $env, $string)
1170 {
1171 if (null !== ($charset = $env->getCharset())) {
1172 return mb_strtoupper(mb_substr($string, 0, 1, $charset), $charset).
1173 mb_strtolower(mb_substr($string, 1, mb_strlen($string, $charset), $charset), $charset);
1174 }
1175
1176 return ucfirst(strtolower($string));
1177 }
1178 }
1179 // and byte fallback
1180 else {
1181 /**
1182 * Returns the length of a variable.
1183 *
1184 * @param Twig_Environment $env A Twig_Environment instance
1185 * @param mixed $thing A variable
1186 *
1187 * @return integer The length of the value
1188 */
1189 function twig_length_filter(Twig_Environment $env, $thing)
1190 {
1191 return is_scalar($thing) ? strlen($thing) : count($thing);
1192 }
1193
1194 /**
1195 * Returns a titlecased string.
1196 *
1197 * @param Twig_Environment $env A Twig_Environment instance
1198 * @param string $string A string
1199 *
1200 * @return string The titlecased string
1201 */
1202 function twig_title_string_filter(Twig_Environment $env, $string)
1203 {
1204 return ucwords(strtolower($string));
1205 }
1206
1207 /**
1208 * Returns a capitalized string.
1209 *
1210 * @param Twig_Environment $env A Twig_Environment instance
1211 * @param string $string A string
1212 *
1213 * @return string The capitalized string
1214 */
1215 function twig_capitalize_string_filter(Twig_Environment $env, $string)
1216 {
1217 return ucfirst(strtolower($string));
1218 }
1219 }
1220
1221 /* used internally */
1222 function twig_ensure_traversable($seq)
1223 {
1224 if ($seq instanceof Traversable || is_array($seq)) {
1225 return $seq;
1226 }
1227
1228 return array();
1229 }
1230
1231 /**
1232 * Checks if a variable is empty.
1233 *
1234 * <pre>
1235 * {# evaluates to true if the foo variable is null, false, or the empty string #}
1236 * {% if foo is empty %}
1237 * {# ... #}
1238 * {% endif %}
1239 * </pre>
1240 *
1241 * @param mixed $value A variable
1242 *
1243 * @return Boolean true if the value is empty, false otherwise
1244 */
1245 function twig_test_empty($value)
1246 {
1247 if ($value instanceof Countable) {
1248 return 0 == count($value);
1249 }
1250
1251 return '' === $value || false === $value || null === $value || array() === $value;
1252 }
1253
1254 /**
1255 * Checks if a variable is traversable.
1256 *
1257 * <pre>
1258 * {# evaluates to true if the foo variable is an array or a traversable object #}
1259 * {% if foo is traversable %}
1260 * {# ... #}
1261 * {% endif %}
1262 * </pre>
1263 *
1264 * @param mixed $value A variable
1265 *
1266 * @return Boolean true if the value is traversable
1267 */
1268 function twig_test_iterable($value)
1269 {
1270 return $value instanceof Traversable || is_array($value);
1271 }
1272
1273 /**
1274 * Renders a template.
1275 *
1276 * @param string $template The template to render
1277 * @param array $variables The variables to pass to the template
1278 * @param Boolean $with_context Whether to pass the current context variables or not
1279 * @param Boolean $ignore_missing Whether to ignore missing templates or not
1280 * @param Boolean $sandboxed Whether to sandbox the template or not
1281 *
1282 * @return string The rendered template
1283 */
1284 function twig_include(Twig_Environment $env, $context, $template, $variables = array(), $withContext = true, $ignoreMissing = false, $sandboxed = false)
1285 {
1286 if ($withContext) {
1287 $variables = array_merge($context, $variables);
1288 }
1289
1290 if ($isSandboxed = $sandboxed && $env->hasExtension('sandbox')) {
1291 $sandbox = $env->getExtension('sandbox');
1292 if (!$alreadySandboxed = $sandbox->isSandboxed()) {
1293 $sandbox->enableSandbox();
1294 }
1295 }
1296
1297 try {
1298 return $env->resolveTemplate($template)->render($variables);
1299 } catch (Twig_Error_Loader $e) {
1300 if (!$ignoreMissing) {
1301 throw $e;
1302 }
1303 }
1304
1305 if ($isSandboxed && !$alreadySandboxed) {
1306 $sandbox->disableSandbox();
1307 }
1308 }
1309
1310 /**
1311 * Provides the ability to get constants from instances as well as class/global constants.
1312 *
1313 * @param string $constant The name of the constant
1314 * @param null|object $object The object to get the constant from
1315 *
1316 * @return string
1317 */
1318 function twig_constant($constant, $object = null)
1319 {
1320 if (null !== $object) {
1321 $constant = get_class($object).'::'.$constant;
1322 }
1323
1324 return constant($constant);
1325 }
1326
1327 /**
1328 * Batches item.
1329 *
1330 * @param array $items An array of items
1331 * @param integer $size The size of the batch
1332 * @param string $fill A string to fill missing items
1333 *
1334 * @return array
1335 */
1336 function twig_array_batch($items, $size, $fill = null)
1337 {
1338 if ($items instanceof Traversable) {
1339 $items = iterator_to_array($items, false);
1340 }
1341
1342 $size = ceil($size);
1343
1344 $result = array_chunk($items, $size, true);
1345
1346 if (null !== $fill) {
1347 $last = count($result) - 1;
1348 $result[$last] = array_merge(
1349 $result[$last],
1350 array_fill(0, $size - count($result[$last]), $fill)
1351 );
1352 }
1353
1354 return $result;
1355 }
1356