- error handling
  - probably should be able to initialize the escape code trie with a lot more
    options, and optionally disable them if the terminfo capability doesn't
    exist
  - some output capabilities can also be emulated if the capability doesn't
    exist
- small built-in terminfo database, and a configure option to not link against
  curses
- rgb colors
- line drawing
- scroll regions
- mouse?
- windows support?