From: Boruch Baum <boruch_baum@gmx.com>
To: Emacs-Devel List <emacs-devel@gnu.org>
Subject: LC_NUMERIC formatting [FEATURE REQUEST]
Date: Wed, 2 Jun 2021 14:54:41 -0400 [thread overview]
Message-ID: <20210602185441.nhvhirdffamahgfy@E15-2016.optimum.net> (raw)
Please consider having the elisp 'format' function adopt the
single-quote and 'I' flags. Each is already implemented in both the GNU
C printf command and the linux printf command. The single-quote flag is
part of the 'Single UNIX Specification' and the 'I' flag has been part
of glibc since version 2.2 [ref: man(3) printf].
If function 'format' uses 'printf' as its backend, this would seem to be
a matter of exposing an existing feature.
The single-quote flag applies a locale's thousands' grouping characters
if appropriate, which I only find currently implemented as user-defined
functions, ie. outside of emacs-core.
$ printf "%'d\n" 1234
1,234
The 'I' flag [from man(3) printf]:
uses the locale's alternative output digits, if any. For example,
since glibc 2.2.3 this will give Arabic-Indic digits in the Persian
("fa_IR") locale.
$ LC_ALL=fa_IR.utf8 /usr/bin/printf "%Id\n" 1234
۱۲۳۴
$ LC_ALL=fa_IR.utf8 /usr/bin/printf "%'Id\n" 1234
۱٬۲۳۴
--
hkp://keys.gnupg.net
CA45 09B5 5351 7C11 A9D1 7286 0036 9E45 1595 8BC0
next reply other threads:[~2021-06-02 18:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-02 18:54 Boruch Baum [this message]
2021-06-03 14:44 ` CSV parsing and other issues (Re: LC_NUMERIC) Maxim Nikulin
2021-06-03 15:01 ` Eli Zaretskii
2021-06-04 16:31 ` Maxim Nikulin
2021-06-04 19:17 ` Eli Zaretskii
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