pluralize($value); return static::matchCase($plural, $value); } /** * Get the singular form of an English word. * * @param string $value * @return string */ public static function singular($value) { $singular = static::getInflector()->singularize($value); return static::matchCase($singular, $value); } public static function setInflector(?Inflector $inflector): void { static::$inflector = $inflector; } /** * Get the inflector instance. */ public static function getInflector(): Inflector { if (is_null(static::$inflector)) { static::$inflector = new Inflector( new CachedWordInflector(new RulesetInflector( English\Rules::getSingularRuleset() )), new CachedWordInflector(new RulesetInflector( English\Rules::getPluralRuleset() )) ); } return static::$inflector; } /** * Determine if the given value is uncountable. * * @param string $value * @return bool */ protected static function uncountable($value) { return in_array(strtolower($value), static::$uncountable); } /** * Attempt to match the case on two strings. * * @param string $value * @param string $comparison * @return string */ protected static function matchCase($value, $comparison) { $functions = ['mb_strtolower', 'mb_strtoupper', 'ucfirst', 'ucwords']; foreach ($functions as $function) { if (call_user_func($function, $comparison) === $comparison) { return call_user_func($function, $value); } } return $value; } }