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bug#20926: 25.0.50; Quotation marks always display as hard quotes

From: Eli Zaretskii
Subject: bug#20926: 25.0.50; Quotation marks always display as hard quotes
Date: Mon, 29 Jun 2015 18:02:26 +0300

> Date: Mon, 29 Jun 2015 14:14:42 +0100
> From: Artur Malabarba <address@hidden>
> Just to add some more information.
> On the help buffer describing the character, all of the following
> lines display a hard ascii quote
> >             character: ‘ (displayed as ‘) (codepoint 8216, #o20030, #x2018)
> >               display: by display table entry [?'] (see below)
> > ': xft:-unknown-Ubuntu Mono-normal-normal-normal-*-13-*-*-*-m-0-iso10646-1 
> > (#x0A)
> On the other hand, the decomposition line below actually displays a
> proper round left quotation mark (between two plain quotes, of
> course).

Go to that left quotation mark on the decomposition line, and type
"C-u C-x =".  That should give you a hint about what's going on there.

> So I know that emacs can display them.

Yes, but does Emacs know that?

The display table is used when Emacs decides at startup that these
characters cannot be displayed.  The code which makes that decision is
in 'set-locale-environment' (see mule-cmds.el, and search for
"char-displayable-p"), which is run at startup.  Can you see what's
going on there?

Also, do you call 'set-locale-environment' in your non-Q session?

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