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bug#3745: 23.0.95; emacs-23.0.95: unibyte-display-via-language-environme

From: Chong Yidong
Subject: bug#3745: 23.0.95; emacs-23.0.95: unibyte-display-via-language-environment
Date: Mon, 06 Jul 2009 10:03:58 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)

Kenichi Handa <address@hidden> writes:

> To minimize the changes, I made the attached patch.  It
> doesn't touch unibyte_to_multibyte_table, but introduced
> charset_unibyte_decoder[128].  I confirmed it didn't make
> the display code slow.

> @@ -302,11 +298,11 @@
>    struct charset *charset;
>    unsigned c1;
> +  if (c < 0x80)
> +    return c;
>    if (CHAR_BYTE8_P (c))
>      return CHAR_TO_BYTE8 (c);

You should also delete the unused `charset' and `c1' variables in this

Other than that, these changes look good.  Thanks very much for making
this patch, and please install on the branch ASAP.

For the trunk, I agree that we should try using use DECODE_CHAR in

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