List locale translation filters that can be applied.
function locale_translation_filters() {
$filters = array();
// Get all languages, except English
drupal_static_reset('language_list');
$languages = locale_language_list('name');
unset($languages['en']);
$filters['string'] = array(
'title' => t('String contains'),
'description' => t('Leave blank to show all strings. The search is case sensitive.'),
);
$filters['language'] = array(
'title' => t('Language'),
'options' => array_merge(array(
'all' => t('All languages'),
'en' => t('English (provided by Drupal)'),
), $languages),
);
$filters['translation'] = array(
'title' => t('Search in'),
'options' => array(
'all' => t('Both translated and untranslated strings'),
'translated' => t('Only translated strings'),
'untranslated' => t('Only untranslated strings'),
),
);
$groups = module_invoke_all('locale', 'groups');
$filters['group'] = array(
'title' => t('Limit search to'),
'options' => array_merge(array(
'all' => t('All text groups'),
), $groups),
);
return $filters;
}