import { shortname } from "https://deno.land/x/denops_std@v3.9.0/option/vim/mod.ts";
Filenames are assumed to be 8 characters plus one extension of 3 characters. Multiple dots in file names are not allowed. When this option is on, dots in file names are replaced with underscores when adding an extension (".~" or ".swp"). This option is useful when editing files on an MS-DOS compatible filesystem, e.g., messydos or crossdos.