import { op } from "https://deno.land/x/ddc_vim@v4.3.1/deps.ts";
const { cinwords } = op;
These keywords start an extra indent in the next line when 'smartindent' or 'cindent' is set. For 'cindent' this is only done at an appropriate place (inside {}). Note that 'ignorecase' isn't used for 'cinwords'. If case doesn't matter, include the keyword both the uppercase and lowercase: "if,If,IF".
(default "if,else,while,do,for,switch")