From 0e30185facb069431defcfbc4a57b8e168068990 Mon Sep 17 00:00:00 2001 From: CSRG Date: Fri, 2 Dec 1994 03:48:59 -0800 Subject: [PATCH] BSD 4_4_Lite2 development Work on file usr/src/contrib/nvi.1.43/docs/bugs.current Synthesized-from: CSRG/cd3/4.4BSD-Lite2 --- usr/src/contrib/nvi.1.43/docs/bugs.current | 66 ++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 usr/src/contrib/nvi.1.43/docs/bugs.current diff --git a/usr/src/contrib/nvi.1.43/docs/bugs.current b/usr/src/contrib/nvi.1.43/docs/bugs.current new file mode 100644 index 0000000000..45b8df6ab0 --- /dev/null +++ b/usr/src/contrib/nvi.1.43/docs/bugs.current @@ -0,0 +1,66 @@ +List of known bugs: + ++ The complete list of POSIX.1 calls that can return EINTR are: + wait, waitpid, sleep, dup2, close, read, write, + fcntl(SETLCKW) tcsetattr, tcdrain + The problem is that technically, any system/library call can return + EINTR, so, while nvi blocks (most of?) the obvious ones, someone may + have to do a complete pass and block signals everywhere. + ++ The man page requires the 4BSD mandoc macro set, should be converted + to the man macro set, or, if necessary, the me macro set. + ++ The ex routines run in raw mode, not in cooked mode. This has to + be fixed for user interface reasons, not to mention that it will + improve network throughput and POSIX 1003.2 is going to require it. + ++ The svi_sm_fill routine should scroll if possible, not always redraw. + ++ The number option doesn't display line numbers in ex append/insert + mode. + ++ The option sidescroll is completely wrong, and setting it does more + harm than good. + ++ The vi main command loop should use the general-purpose overflow and + underflow routines. In addition, the + vi command loop uses unsigned longs -- should probably be fixed as a + 32-bit unsigned type, and then check to make sure it's never used as + as variable type again. + ++ When nvi edits files that don't have trailing newlines, it appends + one, regardless. + ++ Open mode is not yet implemented. + ++ ^C isn't passed to the shell in the script windows as an interrupt + character. + ++ The options: + + hardtabs, lisp, optimize, redraw, slowopen + + are recognized, but not implemented. These options are unlikely to + be implemented, so if you want them you might want to say something! + I will implement lisp if anyone ever documents how it worked. + ++ Screen repainting over slow lines, for some screen changes, isn't + as good as the historic vi's. + ++ The line movement commands ('k', 'j' are easy examples) don't find the + most attractive cursor position correctly when wrapped lines are longer + than 80 characters, and they're on the second or subsequent lines. + ++ Colon commands longer than a single line cause the display to be + incorrect. + ++ Historic vi permitted :g/xxx/vi, i.e. you could execute ex/vi as + global commands. Need to review all of the old commands to verify + which ones could/could not be used as global commands. + ++ Historic vi handled append/insert/change text, when applied to global + commands immediately, as part of the global command. Nvi gets this + wrong. + ++ If you run out of space in the recovery directory, the recovery + file is left in place. -- 2.20.1