Mercurial > hg > isophonics-drupal-site
view core/lib/Drupal/Component/Serialization/YamlPecl.php @ 14:1fec387a4317
Update Drupal core to 8.5.2 via Composer
author | Chris Cannam |
---|---|
date | Mon, 23 Apr 2018 09:46:53 +0100 |
parents | 4c8ae668cc8c |
children |
line wrap: on
line source
<?php namespace Drupal\Component\Serialization; use Drupal\Component\Serialization\Exception\InvalidDataTypeException; /** * Provides default serialization for YAML using the PECL extension. */ class YamlPecl implements SerializationInterface { /** * {@inheritdoc} */ public static function encode($data) { static $init; if (!isset($init)) { ini_set('yaml.output_indent', 2); // Do not break lines at 80 characters. ini_set('yaml.output_width', -1); $init = TRUE; } return yaml_emit($data, YAML_UTF8_ENCODING, YAML_LN_BREAK); } /** * {@inheritdoc} */ public static function decode($raw) { static $init; if (!isset($init)) { // Decode binary, since Symfony YAML parser encodes binary from 3.1 // onwards. ini_set('yaml.decode_binary', 1); // We never want to unserialize !php/object. ini_set('yaml.decode_php', 0); $init = TRUE; } // yaml_parse() will error with an empty value. if (!trim($raw)) { return NULL; } // @todo Use ErrorExceptions when https://drupal.org/node/1247666 is in. // yaml_parse() will throw errors instead of raising an exception. Until // such time as Drupal supports native PHP ErrorExceptions as the error // handler, we need to temporarily set the error handler as ::errorHandler() // and then restore it after decoding has occurred. This allows us to turn // parsing errors into a throwable exception. // @see Drupal\Component\Serialization\Exception\InvalidDataTypeException // @see http://php.net/manual/class.errorexception.php set_error_handler([__CLASS__, 'errorHandler']); $ndocs = 0; $data = yaml_parse($raw, 0, $ndocs, [ YAML_BOOL_TAG => '\Drupal\Component\Serialization\YamlPecl::applyBooleanCallbacks', ]); restore_error_handler(); return $data; } /** * Handles errors for \Drupal\Component\Serialization\YamlPecl::decode(). * * @param int $severity * The severity level of the error. * @param string $message * The error message to display. * * @see \Drupal\Component\Serialization\YamlPecl::decode() */ public static function errorHandler($severity, $message) { restore_error_handler(); throw new InvalidDataTypeException($message, $severity); } /** * {@inheritdoc} */ public static function getFileExtension() { return 'yml'; } /** * Applies callbacks after parsing to ignore 1.1 style booleans. * * @param mixed $value * Value from YAML file. * @param string $tag * Tag that triggered the callback. * @param int $flags * Scalar entity style flags. * * @return string|bool * FALSE, false, TRUE and true are returned as booleans, everything else is * returned as a string. */ public static function applyBooleanCallbacks($value, $tag, $flags) { // YAML 1.1 spec dictates that 'Y', 'N', 'y' and 'n' are booleans. But, we // want the 1.2 behavior, so we only consider 'false', 'FALSE', 'true' and // 'TRUE' as booleans. if (!in_array(strtolower($value), ['false', 'true'], TRUE)) { return $value; } $map = [ 'false' => FALSE, 'true' => TRUE, ]; return $map[strtolower($value)]; } }