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bug#34463: bug#9286: fill-paragraph destroys URLs
From: |
Lars Ingebrigtsen |
Subject: |
bug#34463: bug#9286: fill-paragraph destroys URLs |
Date: |
Fri, 11 Oct 2019 08:58:52 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
> Since Kenichi didn't respond, I think we should study what the Unicode
> Line-breaking Algorithm has to say about that. Can you look there for
> relevant guidance? We don't yet implement the complete algorithm, but
> some of what they say could nevertheless be used to resolve this
> issue.
That would be this:
https://unicode.org/reports/tr14/
I have just skimmed it, but I can't see that it says anything helpful
about filling/folding lines.
If I read it correctly, then it's perfectly allowed to line-break
asdf國
into
asdf
國
But it doesn't say what software should do when filling
asdf
國
Presumably filling that into
asdf國
would be correct in many circumstances, but as Dan said, if it's really
http://google.com
國
then filling that into
http://google.com國
is most likely wrong. So if we want to be cautious, then applying
Chong's patch seems to be the right thing: Adding the space will lead
to things working more of the time, while the downside is that somebody
might prefer
asdf國
visually. I think.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no