From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sourceware-bugzilla@sourceware.org>
Received: by sourceware.org (Postfix, from userid 48)
	id EB90E385840E; Wed, 14 Feb 2024 20:47:52 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EB90E385840E
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org;
	s=default; t=1707943672;
	bh=HMTT7qet/CHNi1QcK6+mNgBjEcU4T/zX+B4YDELHZw0=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=ad8uXFBR2An6ZAUUBIMFE/KQvsgQkM2sDQNhCeTJIRRnXf77hGr7Os4NbdhCl+i7h
	 ZHjGhtxiLN4F0bFy8Y5bo67pFT7UMuKOTNVLXL+wqnpoFjS+41b/GNCsqzHYQYC0tK
	 GDSQhizfBFJINxQ0S85HSAbtkp0uqogN/cmx954Y=
From: "julesbertholet at quoi dot xyz" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug localedata/31370] wcwidth() does not treat
 DEFAULT_IGNORABLE_CODE_POINTs as zero-width
Date: Wed, 14 Feb 2024 20:47:52 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: glibc
X-Bugzilla-Component: localedata
X-Bugzilla-Version: 2.40
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: julesbertholet at quoi dot xyz
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: maiku.fabian at gmail dot com
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-31370-131-PTTfTpZmyB@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-31370-131@http.sourceware.org/bugzilla/>
References: <bug-31370-131@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <glibc-bugs.sourceware.org>

https://sourceware.org/bugzilla/show_bug.cgi?id=3D31370

--- Comment #5 from Jules Bertholet <julesbertholet at quoi dot xyz> ---
> What do the libicu APIs return for these characters?

They don't. Unicode does not in general have a concept of how many "cells" a
character should take up in a terminal or with a fixed-width font. Some
characters are specified to be 0-width/non-advancing, and there is also a
limited concept of "East Asian Wide" defined by UTR 11
<https://www.unicode.org/reports/tr11/>. But the displayed width of many
characters depends on the context, surrounding characters, the particular f=
ont,
etc. `wcwidth()See <https://www.unicode.org/L2/L2023/23107-terminal-suppt.p=
df>
for some more background.

--=20
You are receiving this mail because:
You are on the CC list for the bug.=