busybox にも独自の vi が入っている。 制限事項は以下の通り。 /* * Things To Do: * EXINIT * $HOME/.exrc and ./.exrc * add magic to search /foo.*bar * add :help command * :map macros * how about mode lines: vi: set sw=8 ts=8: * if mark[] values were line numbers rather than pointers * it would be easier to change the mark when add/delete lines * More intelligence in refresh() * ":r !cmd" and "!cmd" to filter text through a