Revert "Merge pull request #3791 from shirayu/fix/filename"

    return result + 1

def truncate_fullpath(full_path, encoding='utf-8'):

    dir_name, full_name = os.path.split(full_path)

    file_name, file_ext = os.path.splitext(full_name)

    max_length = os.statvfs(dir_name).f_namemax

    file_name_truncated = file_name.encode(encoding)[:max_length - len(file_ext)].decode(encoding, 'ignore')

    return os.path.join(dir_name , file_name_truncated + file_ext)

def save_image(image, path, basename, seed=None, prompt=None, extension='png', info=None, short_filename=False, no_prompt=False, grid=False, pnginfo_section_name='parameters', p=None, existing_info=None, forced_filename=None, suffix="", save_to_dirs=None):

    """Save an image.

    if save_to_dirs:

        dirname = namegen.apply(opts.directories_filename_pattern or "[prompt_words]").lstrip(' ').rstrip('\\ /')

        path = truncate_fullpath(os.path.join(path, dirname))

        path = os.path.join(path, dirname)

    os.makedirs(path, exist_ok=True)

            fullfn = None

            for i in range(500):

                fn = f"{basecount + i:05}" if basename == '' else f"{basename}-{basecount + i:04}"

                fullfn = truncate_fullpath(os.path.join(path, f"{fn}{file_decoration}.{extension}"))

                fullfn = os.path.join(path, f"{fn}{file_decoration}.{extension}")

                if not os.path.exists(fullfn):

                    break

        else:

            fullfn = truncate_fullpath(os.path.join(path, f"{file_decoration}.{extension}"))

            fullfn = os.path.join(path, f"{file_decoration}.{extension}")

    else:

        fullfn = truncate_fullpath(os.path.join(path, f"{forced_filename}.{extension}"))

        fullfn = os.path.join(path, f"{forced_filename}.{extension}")

    pnginfo = existing_info or {}

    if info is not None: