linux-kernel - Re: why do we need utf8 normalization when compare name?

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Date:   Tue, 3 Mar 2020 09:48:50 +0800
From:   lampahome <pahome.chen@...lab.org>
To:     Aleksa Sarai <cyphar@...har.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: why do we need utf8 normalization when compare name?

> Sorry, a better example would've been "ñ" (U+00F1). You can also
> represent it as "n" (U+006E) followed by "◌̃" (U+0303 -- "combining
> tilde"). Both forms are defined by Unicode to be canonically equivalent
> so it would be incorrect to treat the two Unicode strings differently
> (that isn't quite the case for "Å").

So utf8-normalize will convert  "ñ" (U+00F1) and "n" (U+006E) followed
by "◌̃" to a utf8 code, and both are the same, right?
Then compare it byte by byte.