Re: Bug: ODT export of Chinese text inserts spaces for line breaks

[Maxim Nikulin <manikulin@gmail.com>]

On 29/06/2021 10:47, James Harkins wrote:
> * Test
> 1本人不想亲自拿到学历学位证书、急于离校者,可书面委托他人代领学历学位证
> 书,29日起即可离校;2本人想亲自领取学历学位证书者,按学校规定的程序及有关
> 要求办理离校手续,领取相关证书后离校;

> Exporting to ODT produces the following (body text, omitting titles,
> headers and such).
> 
> 1本人不想亲自拿到学历学位证书、急于离校者,可书面委托他人代领学历学位证 书,29日起即可离校;2本人想亲自领取学历学位证书者,按学校规定的程序及有关 要求办理离校手续,领取相关证书后离校;

Confirmed: newlines are copied to ODT document as is and they appear as 
spaces in libreoffice. I did not tried HTML since I am unsure if 
browsers should glue paragraphs with newlines into continuous string 
without spaces. Maybe it is necessary to add some attributes for proper 
representation (e.g. "lang"), however "#+LANGUAGE: cn" does not help 
even though libreoffice considers paragraph as Chinese.

On 30/06/2021 01:19, Eric Abrahamsen wrote:
> There are a few ways to approach this:
> 
> (aref char-script-table ?中) -> 'han
> (string-match-p "\\cc" "中") -> 0
> (aref (char-category-set ?中) ?|) -> t

Thank you. I have not noticed all features hidden behind \c. I believe,

     (rx (category can-break))

is more readable and I am a bit surprised that there is no descriptive 
aliases char-categories such as ?|. Just to add another example:

     (category-set-mnemonics (char-category-set ?ф)) -> ".LYchjy"

and `describe-categories' to decipher it.

As to splicing lines, I found `fill-delete-newlines' that uses 
`fill-nospace-between-words-table' besides ?| category to determine 
whether space should be suppressed while splicing lines. In addition 
there are some variables to tune behavior.