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Message-ID: <de6d1fa5b7934f4afd61370d9c58502bef588466.camel@infradead.org>
Date:   Mon, 10 May 2021 14:49:44 +0100
From:   David Woodhouse <dwmw2@...radead.org>
To:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
        alsa-devel@...a-project.org, coresight@...ts.linaro.org,
        dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
        intel-wired-lan@...ts.osuosl.org, keyrings@...r.kernel.org,
        kvm@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-edac@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        linux-fpga@...r.kernel.org, linux-hwmon@...r.kernel.org,
        linux-iio@...r.kernel.org, linux-input@...r.kernel.org,
        linux-integrity@...r.kernel.org, linux-media@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-sgx@...r.kernel.org, linux-usb@...r.kernel.org,
        mjpeg-users@...ts.sourceforge.net, netdev@...r.kernel.org,
        rcu@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH 00/53] Get rid of UTF-8 chars that can be mapped as ASCII

On Mon, 2021-05-10 at 13:55 +0200, Mauro Carvalho Chehab wrote:
> This patch series is doing conversion only when using ASCII makes
> more sense than using UTF-8. 
> 
> See, a number of converted documents ended with weird characters
> like ZERO WIDTH NO-BREAK SPACE (U+FEFF) character. This specific
> character doesn't do any good.
> 
> Others use NO-BREAK SPACE (U+A0) instead of 0x20. Harmless, until
> someone tries to use grep[1].

Replacing those makes sense. But replacing emdashes — which are a
distinct character that has no direct replacement in ASCII and which
people do *deliberately* use instead of hyphen-minus — does not.

Perhaps stick to those two, and any cases where an emdash or endash has
been used where U+002D HYPHEN-MINUS *should* have been used.

And please fix your cover letter which made no reference to 'grep', and
only presented a completely bogus argument for the change instead.

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