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bug#29872: 26.0.90; `man' output encoding, hyphen chars

From: Eli Zaretskii
Subject: bug#29872: 26.0.90; `man' output encoding, hyphen chars
Date: Fri, 29 Dec 2017 11:48:55 +0200

> Date: Thu, 28 Dec 2017 15:52:30 -0800 (PST)
> From: Drew Adams <address@hidden>
> Cc: address@hidden
> In Emacs 25.3.1 and prior I see a hyphen character
> instead.  I thought that was clear.

It wasn't clear because you never said that explicitly, and because
"hyphen" is ambiguous in this context: it could refer to ASCII '-'
character or to non-ASCII '­' or to non-ASCII '‐'.  They are all
different characters, and potentially hint on different problems.

>  This  manual page documents the GNU version of find.  GNU find searches
>  the directory tree rooted at each given file  name  by  evaluating  the
>  given  expression  from left to right, according to the rules of prece-
>  dence (see section OPERATORS), until the outcome  is  known  (the  left
> `C-u C-x =' before that hyphen says this:
>   name: HYPHEN-MINUS
>   general-category: Pd (Punctuation, Dash)
>   decomposition: (45) ('-')
> (BTW, I showed only that one hyphen occurrence, but all of
> the "hyphens" show the same problem in Emacs 26 and later.)

OK.  If you manually load man.el from Emacs 25, does the problem go

Also, if you invoke the 'man' command from the Bash shell and redirect
its output to a file, what characters/bytes do you see in place of
those hyphens in the file created by that command?

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