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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: master bf0aeaa0d7a: Re-enable displaying `han' characters on
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Date: Sat, 03 Aug 2024 18:15:27 +0300
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> Date: Sat, 03 Aug 2024 07:12:18 +0000
> From: pipcet@protonmail.com
> Cc: Eli Zaretskii <eliz@gnu.org>, luangruo@yahoo.com, emacs-devel@gnu.org
> 
> w32font.c seems to ignore Vscript_representative_chars entirely. This
> also appears to apply to the harfbuzz backend.

While the font search on MS-Windows indeed cannot use
script-representative-chars, the representative characters are still
used on Windows, just in a different way and only for certain scripts.
See w32-find-non-USB-fonts.