[ISSUE-102] Re: I18N-ISSUE-242: Clarify case-insensitive match for domains [ITS-20]

Hi Norbert,


> 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.

After reviewing the advantages of using non-case-sensitive mapping vs. the problem of folding non-ASCII characters, we think it's simpler to drop non-case-sensitivity mapping.

Could you please confirm that this solution addresses your concern?


Received on Wednesday, 23 January 2013 16:20:14 UTC