From: Markus Wichmann <nullplan@gmx.net>
To: musl@lists.openwall.com
Cc: "Pablo Correa Gómez" <pabloyoyoista@postmarketos.org>
Subject: Re: [musl] [PATCH 0/2] Support printing localized RADIXCHAR
Date: Sun, 17 Dec 2023 08:26:08 +0100 [thread overview]
Message-ID: <ZX6ikLLSL-RMe0zA@voyager> (raw)
In-Reply-To: <20231216231037.GG4163@brightrain.aerifal.cx>
Am Sat, Dec 16, 2023 at 06:10:37PM -0500 schrieb Rich Felker:
> This is a topic that's been controversial. I have always been against
> having variable radix character, but I've also been seeking input from
> users who want localized output whether the lack of this functionality
> is a serious problem that needs revisiting.
>
Speaking as a German, if output is mostly translated (because
LC_MESSAGES is at the discretion of gettext) but numbers have a '.' as
radix and are output with a precision of 3, it is disorienting and
requires re-reading every time. Because in the German locale, '.' is a
valid thousands separator (space and inch mark also being acceptable),
and the thousands grouping is just 3.
And if they're output with a different precision, it is still jarring at
least.
> Last time it was discussed, I believe my position was that, if we do
> this, it needs to be a 1-bit setting, where a locale necessarily has
> either '.' or ',' as the radix. No other values actually appear in
> real-world conventions, and on other implementations such as glibc,
> the allowance for arbitrary characters allows doing some ~nasty~ stuff
> with output and input processing. For example, you could define the
> radix character to be '1' or something that makes conversions fail to
> round-trip.
>
That is reasonable. Overgeneralization usually leads to bad code or
unforseen outcomes. This is also the case for file names, with just
recently a bug report being introduced against POSIX to disallow control
characters there. (Imagine someone setting '\r' as radix point).
Ciao,
Markus
next prev parent reply other threads:[~2023-12-17 7:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-16 19:36 Pablo Correa Gómez
2023-12-16 19:36 ` [musl] [PATCH 1/2] langinfo: add support for LC_NUMERIC translations Pablo Correa Gómez
2023-12-16 19:36 ` [musl] [PATCH 2/2] printf: translate RADIXCHAR for floating-point numbers Pablo Correa Gómez
2023-12-16 23:10 ` [musl] [PATCH 0/2] Support printing localized RADIXCHAR Rich Felker
2023-12-17 7:26 ` Markus Wichmann [this message]
2023-12-17 22:25 ` Pablo Correa Gomez
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