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bug#20871: 25.0.50; fill-single-char-nobreak-p does not recognize a sing


From: Marcin Borkowski
Subject: bug#20871: 25.0.50; fill-single-char-nobreak-p does not recognize a single-letter word when it is preceded by an open paren
Date: Sat, 30 Apr 2016 20:42:43 +0200
User-agent: mu4e 0.9.13; emacs 25.1.50.9

On 2016-04-30, at 19:01, Eli Zaretskii <address@hidden> wrote:

>> From: Marcin Borkowski <address@hidden>
>> Cc: address@hidden
>> Date: Sat, 30 Apr 2016 18:41:32 +0200
>> 
>> >> (define-category ?l "Latin
>> >> Latin letters (including those with diacritics)")
>> >
>> > That doesn't sound right: why single out diacritics?  And why only for
>> > Latin?
>> 
>> Because I don't really know what this category is about?
>> 
>> I think that my confusion is a sufficient proof that more precise
>> documentation is needed.
>
> I didn't object to expanding the doc string, I only suggested that we
> do it right.

I didn't claim you objected.

>> > If we want to enhance those doc strings, each one of them should state
>> > what Unicode blocks are covered.  (It would be okay to say something
>> > like "all Latin blocks", instead of enumerating them all, and
>> > similarly for the other categories.)
>> 
>> A user might not know what exactly a "Unicode block" is.  (I don't.)
>> I think a pointer to some sources or a few words of explanation are
>> really needed.
>
> A reference to the ELisp manual should do (the explanation should be
> added to the manual first, of course).
>
>> (I won't make a patch, though, since I clearly know too little about
>> it to do it correctly.)
>
> An opportunity to learn, I'd say.  You could start with
> admin/unidata/Blocks.txt, for example.  We use it to generate
> charscript.el (and categories are a semi-obsolete facility that
> predates char-script-table).

You got me here.  The problem is, I'm not going to have a lot of free
time in the next few weeks/months.  (I'll also probably have to stop any
work on Emacs bugs for some time, for instance.)  But I'll try to look
into this one.

Best,

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University





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