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From: "Ayush Singh" <ayushdevel1325@gmail.com>
Date: Tue, 7 Jun 2022 11:32:05 +0530
Message-ID: <CA+Yfj7uGxzJiX_xWZeFVFi=ACqq0es4A+ucUoyJu_gq0f7Zcfg@mail.gmail.com>
Subject: Need clarification about UEFI Strings
To: edk2-devel-groups-io <devel@edk2.groups.io>
Content-Type: text/plain; charset="UTF-8"

Hello everyone, I am trying to write an implementation for UEFI
strings in Rust and just wanted clarification about some things.

Are UEFI Strings UTF-16 encoded? I have looked at some previous Rust
implementations for this and it seems UEFI does not support the whole
UTF-16 but rather only UCS-2
(https://en.wikipedia.org/wiki/Universal_Coded_Character_Set) which is
a subset of UTF-16.

There is also something called WTF-8
(https://en.wikipedia.org/wiki/UTF-8#WTF-8) which Rust uses to
represent OsStrings in Windows which is supposed to use UTF-16 (?).

Anyway, if someone can point me to the resources/specifications of
UEFI Strings, it would be a great help.

Ayush Singh