Lime\App::path PHP Method

    public function path()
    {
        $args = func_get_args();
        switch (count($args)) {
            case 1:
                $file = $args[0];
                if ($this->isAbsolutePath($file) && file_exists($file)) {
                    return $file;
                }
                $parts = explode(':', $file, 2);
                if (count($parts) == 2) {
                    if (!isset($this->paths[$parts[0]])) {
                        return false;
                    }
                    foreach ($this->paths[$parts[0]] as &$path) {
                        if (file_exists($path . $parts[1])) {
                            return $path . $parts[1];
                        }
                    }
                }
                return false;
            case 2:
                if (!isset($this->paths[$args[0]])) {
                    $this->paths[$args[0]] = [];
                }
                array_unshift($this->paths[$args[0]], rtrim(str_replace(DIRECTORY_SEPARATOR, '/', $args[1]), '/') . '/');
                return $this;
        }
        return null;
    }