GNU bug report logs - #1831
23.0.60; Emacs.app cannot display acctended characters in *grep* buffer

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Message #10 received at 1831 <at> debbugs.gnu.org (full text, mbox):

From: Alan J Third <alan <at> idiocy.org>
To: Peter Dyballa <Peter_Dyballa <at> Freenet.DE>
Cc: 1831 <at> debbugs.gnu.org
Subject: Re: bug#1831: 23.0.60;
 Emacs.app cannot display acctended characters in *grep* buffer
Date: Sat, 09 Jan 2016 23:08:08 +0000

Peter Dyballa <Peter_Dyballa <at> Freenet.DE> writes:

> A similiar failure can be observed when typing <some character>C-q 0 3
> 2 3 <some non-decimal event> or <some character>C-q 1 4 4 3 in octal.
> In GNU Emacs 23.0.60 C-q 0 3 2 3 produces a COMBINING DOT BELOW, which
> is combined with the previously typed character. In the end something
> ugly appears, as shown above. In Emacs.app only a blank spot is left.
> C-u C-x = shows:
>
> 	        character: ̣ (803, #o1443, #x323)
> 	preferred charset: unicode (Unicode (ISO10646))
> 	       code point: 0x0323
> 	           syntax: w 	which means: word
> 	         category: ^:Combining
> 	Combining diacritic or mark
> 	      buffer code: #xCC #xA3
> 	        file code: #xCC #xA3 (encoded by coding system utf-8-unix)
> 	          display: composed to form "̣" (see below)
> 	
> 	Composed using this font:
> 	  nil:-apple-NimbusMonL-medium-normal-normal-Regular-10-*-*-*-*-*- 
> iso10646-1
> 	by these glyphs:
> 	  [0 0 803 0 6 0 5 5 0 [0 0 6]]
> 	
> 	Character code properties: customize what to show
> 	  name: COMBINING DOT BELOW
> 	  old-name: NON-SPACING DOT BELOW
> 	  general-category: Mn (Mark, Nonspacing)
> 	
> 	There are text properties here:
> 	  fontified            t
>
> Using a font like Lucida Grande that has ọ, o, and COMBINING DOT
> BELOW, I cannot compose ọ from o and COMBINING DOT BELOW. Again, in
> GNU Emacs 23.0.60 this at least creates something ugly.

Hi, sorry it's taken so long to get back to you about this. I can
reproduce the issue in 24.5, but not in 25, so I'm going to close this
bug as fixed.

-- 
Alan Third

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