Re: [css3-fonts] unicode-range and unicode normalization

On Thu, Jul 8, 2010 at 2:47 AM, Yuzo Fujishima <yuzo@google.com> wrote:
> What unicode normalization (http://unicode.org/reports/tr15/) must be
> applied
> to the characters in an HTML document before matching against
> the unicode-range
> descriptor (http://dev.w3.org/csswg/css3-fonts/#unicode-range-desc)?
> A. No normalization at all. All the codepoints are checked against
> unicode-range as-is.
> B. Undefined. Whether to apply normalization is up to UA.
> C. Must be normalized to NFC
> D. Must be normalized to NFD
> E. Must be normalized to NFKC
> F. Must be normalize to NFKD
> In my opinion, A (or B) is the most realistic choice, seeing that Chrome 6,
> Safari 6, IE8, and Opera 10
> don't normalize stylesheets. (Firefox 6 doesn't seem to be working in this
> respect.)
> http://www.w3.org/International/tests/tests-html-css/tests-normalization/generate?test=10&serveas=xml&format=xhtml5
> Yuzo
> Reference:
> http://www.w3.org/International/tutorials/tutorial-char-enc/

While I would prefer NFC (the one true normalization form), if
*nobody* normalizes right now, then "don't normalize at all" is the
pragmatic choice.  "Undefined" is not acceptable - it'll result in
pages working differently in different browsers.

~TJ