Re: how to display Chinese character full line?

On Sun, 10 Oct 2010, Tony Mechelynck wrote:

> On 08/10/10 21:22, Benjamin R. Haskell wrote:
>> On Sat, 9 Oct 2010, Zac Lee wrote:
>>
>>> please see the pic
>>> yes, I know that the characters cannot display in one line, but I want
>>> the line 127 is full thanks
>>
>> Are you looking for the 'wrap' option?
>>
>> :help 'wrap'
>>
>> Specifically:
>>
>> :set nowrap
>>
>>
>> Or do you mean that the characters aren't stretching to the edge of
>> the screen? In that case, I'm not sure. Maybe your OS has a defective
>> wcwidth() (so Vim isn't calculating the widths of the hanzi
>> correctly)? More information would be necessary to diagnose. Is that
>> Vim or Gvim?
>>
>
> Vim will never display a left-half hanzi in the last screen cell of a
> line. If a hanzi would start in the last cell of a line, Vim moves
> the whole hanzi to the next line (in 'wrap' mode) or omits it (in
> 'nowrap' mode). The apparent "space" in the last cell of the line has
> no reality, it is not part of the text of the file as recorded on
> disk, or indeed even as represented in memory.
>
> Vim always uses two screen cells for "wide" CJK characters, it has its
> own width table compiled-in (borrowed from the Unicode character
> properties database) and, for "ambiguous" characters which are "wide"
> in some fonts and "narrow" in others, the 'ambiwidth' option.

It wasn't clear to me from the screenshot what the problem was. OP, is
that the problem -- that there's space for half a CJK character?

Where 'Y' is a Latin character, and __ and -- are hanzi:
┌──────────────────┐
│127 __--__--__--Y │
│ --__-- │
│128 __--__-- │
└──────────────────┘

It looked to me like the line itself was only occupying about half of
the available screen width:
┌───────────────────────────────────┐
│127 __--__--__--Y │
│ --__-- │
│128 __--__-- │
└───────────────────────────────────┘

(My off-the-cuff response about wcwidth() doesn't make sense for either
case, but it's nice to know Vim rolls its own.)

--
Best,
Ben

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