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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

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.


Marcin Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University

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