ISSUE-242: Clarify case-insensitive match for domains

Clarify case-insensitive match for domains

State:

CLOSED

Product:

its

Raised by:

Norbert Lindenberg

Opened on:

2013-01-19

Description:

http://www.w3.org/TR/2012/WD-its20-20121206/#domain

Steps 3-1-2-5 and 3-2-5 of the algorithm for interpreting values in the Domain data category state "the mapping is case-insensitive".

First, is case-insensitive matching really necessary here? In discussions of other technologies, e.g. CSS, we found that it's hard to get case-insensitive matching right, i.e. make it work so that it doesn't have surprising/confusing results in some languages, while strict string equality is easy to understand.

Second, if it is really necessary, then the precise meaning of "case-insensitive" matching has to be specified. Unicode case-folding using the C and F mappings of the Unicode data file CaseFolding.txt is our normal recommendation.

Related Actions Items:

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Related emails:

1. Re: [ISSUE-102] I18N-ISSUE-242: Clarify case-insensitive match for domains [ITS-20] (from w3@norbertlindenberg.com on 2013-02-27)
2. Re: issue-113 (Re: Comment on ITS 2.0 specification WD) (from fsasaki@w3.org on 2013-02-27)
3. issue-113 (Re: Comment on ITS 2.0 specification WD) (from fsasaki@w3.org on 2013-01-24)
4. [ISSUE-102] Re: I18N-ISSUE-242: Clarify case-insensitive match for domains [ITS-20] (from ysavourel@enlaso.com on 2013-01-23)
5. Re: I18N-ISSUE-242: Clarify case-insensitive match for domains [ITS-20] (from ysavourel@enlaso.com on 2013-01-21)
6. I18N-ISSUE-242: Clarify case-insensitive match for domains [ITS-20] (from sysbot+tracker@w3.org on 2013-01-19)
7. Comment on ITS 2.0 specification WD (from w3@norbertlindenberg.com on 2013-01-18)

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