source: trunk/minix/commands/elvis/Knownbug.txt@ 20

Last change on this file since 20 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a

File size: 3.3 KB
Line 
1The following options are missing:
2 [no]optimize - affects screen redrawing method
3 [no]redraw - simulate character insertion by redrawing line
4 [no]slowopen - don't use character insertion
5 tags="tags" - list of tags, used as TAGPATH
6
7I'd like to improve the versatility of the options whose value is a command:
8cc, make, kp, and ep. I'd like to add some notation that allows you to say
9where to insert the current filename or current word.
10-------------------------------------------------------------------------------
11Currently, elvis is configured to look for | only in .exrc files. It doesn't
12look for | in any interactively entered command lines, yet.
13-------------------------------------------------------------------------------
14The 'p', '#', and 'l' flags aren't supported. Also, ex commands don't accept
15counts; e.g., ":c5" can't be used to change five lines.
16-------------------------------------------------------------------------------
17The following have been reported, but have not been verified. If you have
18experienced any of the following, and haven't reported it yet, then please
19report it now! I need more information about these bugs.
20
21[Bugs that are not in this list should also be reported, of course.]
22
23- Under VMS on an 80-column screen, after scolling sideways to approximately
24 column 110, a ^L will not redraw the part of the line after the cursor.
25- On an Atari ST running under TOS: some ASCII keys seem to send '#' plus
26 another key. (This is normal for non-ASCII keys like <F1> or <Help>, but
27 ASCII keys should always send a single ASCII character.)
28-------------------------------------------------------------------------------
29BIG JOBS:
30 Desirable extension: merge input mode and visual command mode.
31 Display long lines by wrapping, like the real vi (if ":set sidescroll=0")
32-------------------------------------------------------------------------------
33
34- In the ":w >>filename" command, elvis doesn't allow any whitespace between
35 the ">>" and "filename".
36
37- Elvis doesn't allow "backslash newline" inside a single EX command.
38
39- VMS intercepts the control-T character, which is normally used to increase
40 indentation. The <Tab> key works, but it doesn't do quite the same thing.
41 (":map! ^I ^T" helps.)
42
43- Under VMS, file I/O is very slow. Looking over the vmsio.c file, I get the
44 impression that it is rather over-done for elvis. Its speed could
45 probably be inproved.
46
47- The errlist feature doesn't seem to work with the Borland compilers. Perhaps
48 they write to stderr instead of stdout? This will probably be easy to solve
49 once I modify the "cc" and "make" options, as described earlier.
50
51- The command ":0" should move the cursor to line 1. Currently, it doesn't
52 move the cursor at all.
53
54- File preservation is still flakey. On DOS/TOS/VMS systems, it is also more
55 complex that it should be.
56
57- The act of appending to a cut buffer (as in "Ayy) sets file modification
58 flag. It shouldn't!
59
60- The .exrc file is limited to BLKSIZE bytes -- 2048 on most systems, but
61 1024 on Minicx-PC, Coherent, and MS-DOS.
62
63- I *still* haven't quite perfected the screen update code. If you suspect
64 that the screen doesn't accurately reflect the contents of the edit buffer,
65 then you should try doing a control-L.
66
67 I'll be overhauling the screen update code soon to make it wrap long lines
68 like the real vi. I expect to fix this bug then.
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