UTF-16 Encoding Scheme and U+FFFE

Peter Constable petercon at microsoft.com
Tue Jun 3 16:28:05 CDT 2014

There's never been anything preventing a file from containing and beginning with U+FFFE. It's just not a very useful thing to do, hence not very likely.


-----Original Message-----
From: Unicode [mailto:unicode-bounces at unicode.org] On Behalf Of Richard Wordingham
Sent: June 3, 2014 11:53 AM
To: unicode at unicode.org
Subject: UTF-16 Encoding Scheme and U+FFFE

How do I read definition D98 in TUS Version 6.3.0 Chapter 3 to prohibit a file in the UTF-16 encoding scheme from starting with U+FFFE?  Or is
U+FFFE actually allowed to start such a file?

Is an implementation that deduces the encoding scheme of a plain text file from a leading BOM to be characterised as reckless?

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