3 minor 'vi' bugs.
Jeff Gilliam
jeff at voder.UUCP
Thu Jul 12 16:51:48 AEST 1984
> Try this: vi a file, type '^F', then '100^B', then '^G'. If
>everything still looks normal, try a few more '100^B'.
> Now try that one: ':set ht=0'.
> Finally, try ':set sw=0', then open a new line and type '^D'.
>
> The first bug is in the CTRL(b) case of vmain(), line ~= 425 in
>ex_vmain.c. There are some parentheses missing in the address ...
>
> /* original code */
> addr = dot - vcline - 2 + (cnt-1)*basWLINES;
> /* modified code */
> addr = dot - ((vcline - 2) + (cnt-1)*basWLINES);
I'll have to take exception to this; the correctly modified line
should be:
addr = dot - vcline - 2 - (cnt-1)*basWLINES;
After making this change try the following to verify it really
works:
vi somefile
10^F (move forward 10 screens full)
10^B (you should be right back at line 1)
.
.
.
Regarding your second and third bugs: they're fixed in 4.2 (with
exactly the same code you suggest).
Jeff "No clever signature line yet" Gilliam
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