GNU bug report logs - #3325
23.0.93; Unexpected font for composed character

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From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Alan Third <alan <at> idiocy.org>
Cc: 3325 <at> debbugs.gnu.org, Markus Triska <markus.triska <at> gmx.at>, Kenichi Handa <handa <at> m17n.org>
Subject: bug#3325: 23.0.93; Unexpected font for composed character
Date: Fri, 01 Nov 2019 17:03:03 +0100

Alan Third <alan <at> idiocy.org> writes:

> This still happens in Emacs 25, but from the above description it
> doesn't really sound like a bug. It's Emacs working around the fact that
> the font doesn't have the glyph.
>
>> It may be good that Emacs knows that `u'+U+308 = `ü', but
>> that kind of normalization is not yet supported.
>
> I'm changing this bug report to wishlist.

If I try this (i.e., load a file with ü in it, or say (insert ?u
#x308)), I get the following:

             position: 1 of 2 (0%), column: 0
            character: u (displayed as u) (codepoint 117, #o165, #x75)
              charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x75
               script: latin
               syntax: w 	which means: word
             category: .:Base, L:Left-to-right (strong), a:ASCII, l:Latin, r:Roman
             to input: type "C-x 8 RET 75" or "C-x 8 RET LATIN SMALL LETTER U"
          buffer code: #x75
            file code: #x75 (encoded by coding system utf-8)
              display: composed to form "ü" (see below)

Composed with the following character(s) "̈" using this font:
  xfthb:-PfEd-DejaVu Sans Mono-normal-normal-normal-*-25-*-*-*-m-0-iso10646-1
by these glyphs:
  [0 1 117 190 15 2 13 19 0 nil]

Character code properties: customize what to show
  name: LATIN SMALL LETTER U
  general-category: Ll (Letter, Lowercase)
  decomposition: (117) ('u')

And the display looks correct.  So it seems like this has been fixed
now?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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