Feedback on the proposal to change U+FFFD generation when decoding ill-formed UTF-8
Richard Wordingham via Unicode
unicode at unicode.org
Mon May 15 17:43:29 CDT 2017
On Mon, 15 May 2017 21:38:26 +0000
David Starner via Unicode <unicode at unicode.org> wrote:
> > and the fact is that handling surrogates (which is what proponents
> > of UTF-8 or UCS-4 usually focus on) is no more complicated than
> > handling combining characters, which you have to do anyway.
> Not necessarily; you can legally process Unicode text without worrying
> about combining characters, whereas you cannot process UTF-16 without
> handling surrogates.
The problem with surrogates is inadequate testing. They're sufficiently
rare for many users that it may be a long time before an error is
discovered. It's not always obvious that code is designed for UCS-2
rather than UTF-16.
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