public function LanguageMatcher::getMatchingLangcode in Translation Management Tool 8

Return the better match of a langcode over a list of langcodes.

Use partial matching to return the better match of a local language langcode over a list of remote languages langcodes.

We can have one of this three cases:

• In case of a exact match it will just return the match.
• In case of a partial match it will return the first partial

match sorted alphabetically.

• In case there is no partial match neither, it will just return the local

language.

Parameters

string $local_language: The langcode of the local language.

array $remote_languages: The list of remote languages, the keys must be the remote langcodes.

Return value

string The best match for the local language.

File

src/LanguageMatcher.php, line 31

Class

LanguageMatcher

Language matcher service.

Namespace

Drupal\tmgmt

Code

public function getMatchingLangcode($local_language, array $remote_languages) {
  $parts = explode('-', $local_language);
  foreach ($parts as $key => $part) {
    $langcode = implode('-', array_slice($parts, 0, count($parts) - $key));

    // Return exact match.
    if (array_key_exists($langcode, $remote_languages)) {
      return $langcode;
    }
    $matches = array_filter(array_keys($remote_languages), function ($key) use ($langcode) {
      return empty($langcode) ? FALSE : strpos($key, $langcode) === 0;
    });
    if (!empty($matches)) {
      sort($matches);
      return reset($matches);
    }
  }
  return $local_language;
}