On Fri, Nov 10, 2017 at 5:04 AM, Rin Okuyama <rokuy...@rk.phys.keio.ac.jp>
wrote:
> When a double-width character does not fit in a line, and cursor
> moves to that char by 'l' command, cursor is put on the 1st column
> of that char, instead of the 2nd column. Then, if cursor moves
> further from a double-width char in that line to a single-width one,
> it is located on the 2nd column of the double-width char, instead of
> the single-width char it moving toward.
>
> [...] This problem
> occurs not only with our nvi but also with your nvi2.
>
Confirmed, that's bad.
As long as it doesn't break xterm.
>>
>
> Xterm focuses entire of a double-width char in both cases when cursor
> is located on the left or right parts of that char.
>
I know. I tried a few terminals, but didn't see
this behavior. Can you name one (just curious)?
--- --- ---
>> multi-width multi-width nothing ins'ed
>> multi-width single-width 1 spc ins'ed
>> single-width multi-width 1 spc ins'ed
>> single-width single-width original
>>
>
> Do you know specific languages for which this makes things
> inconvenient? I've also found that vi shipped with Solaris 10
> (Version SVR4.0, Solaris 2.5.0) works similarly.
>
Oh, you mean multi-*width* -- that may probably
work. I was thinking multibyte.
--
Zhihao Yuan, ID lichray
The best way to predict the future is to invent it.
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