Re: shr.el: folding Japanese text

[Katsumi Yamaoka <yamaoka@jpl.org>]

Lars Magne Ingebrigtsen <larsi@gnus.org> wrote:
> Katsumi Yamaoka <yamaoka@jpl.org> writes:

>> Is there a reason not to use the fill functions?  How about the
>> following?

> I was hoping to avoid using the fill functions so that all the things
> that need start-end regions (<A>, <EM>, etc) could rely on the start
> point never changing (much) after it's been set.

Agreed.  I feel it possible to achieve.  AFAICT, what the present
`shr-insert' code should do or should not do for CJK text are:

1. Don't insert SPC between wide characters; simply concatenate
 short lines.  But SPC inserted between wide character and ASCII
 word is ok (I like that style, though there may be those who do
 not like it).

2. Fold long lines; we can chop wide characters text anywhere.

3. Do kinsoku.

That's all, maybe.  The code I posted last does them, though
fill.el may be too complicated to do them.

> I'm not sure that's actually the case any more, since the folding algo
> has gotten progressively more complicated, so it might make sense to
> switch the start-point things to using markers and allowing filling
> after the entire paragraph has been finished.

> I'm also not sure how this would affect performance.