Current File : /home/tjamichg/cursos.tjamich.gob.mx/vendor/php-xapi/model/src/LanguageMap.php
<?php
/*
* This file is part of the xAPI package.
*
* (c) Christian Flothmann <christian.flothmann@xabbuh.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Xabbuh\XApi\Model;
/**
* Read-only dictionary mapping RFC 5646 language tags to translated strings.
*
* @author Christian Flothmann <christian.flothmann@xabbuh.de>
*/
final class LanguageMap implements \ArrayAccess, \Countable
{
private $map;
/**
* Creates a language map from the given dictionary.
*
* Keys are RFC 5646 language tags and each value is a string in the
* language specified by the key.
*/
public static function create(array $map): self
{
$languageMap = new self();
$languageMap->map = $map;
return $languageMap;
}
/**
* Creates a new language map based on the current map including the given entry.
*
* An existing entry will be overridden if the given language tag is already
* present in this language map.
*/
public function withEntry(string $languageTag, string $value): self
{
$languageMap = clone $this;
$languageMap->map[$languageTag] = $value;
return $languageMap;
}
/**
* Returns an unordered list of all language tags being used as keys
* in this language map.
*
* @return string[]
*/
public function languageTags(): array
{
return array_keys($this->map);
}
/**
* {@inheritdoc}
*/
public function offsetExists($languageTag): bool
{
return isset($this->map[$languageTag]);
}
/**
* {@inheritdoc}
*/
public function offsetGet($languageTag): string
{
if (!isset($this->map[$languageTag])) {
throw new \InvalidArgumentException(sprintf('The requested language tag "%s" does not exist in this language map.', $languageTag));
}
return $this->map[$languageTag];
}
/**
* {@inheritdoc}
*/
public function offsetSet($languageTag, $value): void
{
throw new \LogicException('The values of a language map cannot be modified. Use withEntry() instead to retrieve a new language map with the added or modified value.');
}
/**
* {@inheritdoc}
*/
public function offsetUnset($languageTag): void
{
throw new \LogicException('Entries of a language map cannot be removed.');
}
public function count(): int
{
return count($this->map);
}
public function equals(LanguageMap $languageMap): bool
{
if (count($this->map) !== count($languageMap->map)) {
return false;
}
foreach ($this->map as $languageTag => $value) {
if (!isset($languageMap[$languageTag])) {
return false;
}
if ($value !== $languageMap[$languageTag]) {
return false;
}
}
return true;
}
}
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