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bug#15138: revno: 114089 change causes cjk characters not shown correctl

From: Jan Djärv
Subject: bug#15138: revno: 114089 change causes cjk characters not shown correctly
Date: Thu, 5 Sep 2013 18:34:19 +0200


5 sep 2013 kl. 15:49 skrev Kenichi Handa <address@hidden>:

> In article <address@hidden>, Jan Djärv <address@hidden> writes:
>> Good, closing.
> I have another question about this change.
>      /* Fonts often have characters in other scripts, like symbol, even if 
> they
>         don't match script: symbol.  So check if the character is present
>         in the current face first.  Only enable for NS for now, but should
>         perhaps be general?  */
>      Lisp_Object font_object;
>      XSETFONT (font_object, face->font);
>      if (font_has_char (f, font_object, c)) return face->id;
> With it, face->font may vary depending on the preceding
> character.  So if you have these lines:
>  abc•
>  あいう•
> the two "•"s will be displayed by different fonts.  Isn't it
> better to try the font selected for ASCII as this:
>      XSETFONT (font_object, face->ascii_face->font);

I don't know, I never had that situation.  I guess if the goal is to show same 
glyphs, ascii_face->font is a better choice.  But if it is to have a consistent 
look with the surrounding text, it it not.

Consider a buffer where only  あいう• is entered.  I would assume the current font 
would be a better choice in this case.

        Jan D.

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