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Re: [draft] Unicode Normalization: requsts for CSS-WG, HTML-CG agendum

From: fantasai <fantasai.lists@inkedblade.net>
Date: Mon, 09 Feb 2009 16:16:01 -0800
Message-ID: <4990C741.4040804@inkedblade.net>
To: Martin Duerst <duerst@it.aoyama.ac.jp>
CC: "Phillips, Addison" <addison@amazon.com>, "public-i18n-core@w3.org" <public-i18n-core@w3.org>

Martin Duerst wrote:
> I haven't read everything, but if your claim ("overly-aggressive")
> is true, then early normalization would be better than late matching,
> because it would allow those producers that, for whatever reason,
> insist on that there is a difference to simply not do normalization
> for these codepoints.

The argument is that certain normalization mappings in NFC/NFD
are more like the types of mappings that happen in NFKC/NFKD than
like the compose/decompose/ordering mappings. Therefore early
normalization would cause dataloss in the content, whereas late
matching at, e.g. the selectors level, would avoid such dataloss
while still allowing such strings to match.

See Ambrose Li's and Robert Burns's comments:
http://lists.w3.org/Archives/Public/www-style/2009Feb/0229.html

~fantasai
Received on Tuesday, 10 February 2009 00:16:44 GMT

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