lua_stdin_is_tty  253 lib/lua/luaconf.h #define lua_stdin_is_tty()	isatty(0)
lua_stdin_is_tty  257 lib/lua/luaconf.h #define lua_stdin_is_tty()	_isatty(_fileno(stdin))
lua_stdin_is_tty  259 lib/lua/luaconf.h #define lua_stdin_is_tty()	1  /* assume stdin is a tty */