后缀名为nvi的文件如何打开

Nvi是使用ncurses库实现的。并且使用了db嵌入数据库。

Nvi is an implementation of the ex/vi text editor originally distributed as part of the Fourth Berkeley Software Distribution (4BSD), by the University of California, Berkeley. The source code to nvi is freely available, and nvi may be freely redistributed.
。。。详见 http://www.bostic.com/vi/

也可以从gnu官方网站上得到。

在readme文件中，描述了各个目录的内容：
LICENSE ....... Copyright, use and redistribution information.
README ........ This file.
build.unix .... UNIX build directory.
catalog ....... Message catalogs; see catalog/README.
cl ............ Vi interface to the curses(3) library.
clib .......... C library replacement source code.
common ........ Code shared by ex and vi.
db ............ A stripped-down, replacement db(3) library.
dist .......... Various files used to build the