Re: shr.el: folding Japanese text

[Kan-Ru Chen <kanru@kanru.info>]

Lars Magne Ingebrigtsen <larsi@gnus.org> writes:

> I tried yanking some text from an article in
> gwene.cn.com.sina.blog.hanhan (Chinese text, I guess) into a .txt
> buffer, and then just `M-q'-ing it.  It didn't look very nice.  It
> looked as if thought the characters were much narrower than they really
> were, because it filled the lines way too late.  Like this:
>
> 最近一个月没有更新，是因为不知道说什么好，我本人也正在赶新的小说，会在9月
> 出版，前几天去香港书展，长望着维港，更觉得应该有好的作品奉献给大家，虽然
> 他人无德无能，但我又何德何能，我深感忧虑，何以解愁，唯有作品。
>
> (I hope that's not a naughty text and I'll end up in jail now for
> threatening terroristey behaviour...)

The text displayed totally OK with the terminal emulator, because
historically the ideographics are `double-width'. If you use a monospace
CJK font which is exactly twice wide of the latin font, you will find
the text is wrapped around 73th column as well.

(The text itself is OK, too ;-)

> In my Emacs, that text is displayed at least five characters too wide
> before the lines were folded.  But that probably depends on what font
> you use.
>
> Doesn't Emacs have any way to say "how many pixels have I left now"?

That would be better than counting characters. But consider that we can
use both GUI and terminal interfaces at the same time (multi-tty),
counting pixels seems bogus, too.

Kanru
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