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RE: [IndexedDB] Spec changes for international language support

From: Pablo Castro <Pablo.Castro@microsoft.com>
Date: Thu, 17 Mar 2011 22:37:58 +0000
To: Jonas Sicking <jonas@sicking.cc>
CC: Jungshik Shin (신정식, 申政湜) <jshin@chromium.org>, Bjoern Hoehrmann <derhoermi@gmx.net>, public-webapps WG <public-webapps@w3.org>
Message-ID: <F108E2F6BA743C4696146F0B7111C2610B2D97@TK5EX14MBXC245.redmond.corp.microsoft.com>

From: Jonas Sicking [mailto:jonas@sicking.cc] 
Sent: Tuesday, March 08, 2011 1:11 PM

>> All in all, is there anything preventing adding the API Pablo suggests
>> in this thread to the IndexedDB spec drafts?

I wanted to propose a couple of specific tweaks to the initial proposal and then unless I hear pushback start editing this into the spec.

From reading the details on this thread I'm starting to realize that per-database collations won't do it. What did it for me was the example that has a fuzzier matching mode (case/accent insensitive). This is exactly the kind of index I would want to sort people's names in my address book, but most likely not the index I'll want to use for my primary key. 

Refactoring the API to accommodate for this would mean to move the setCollation() method and the collation property to the object store and index objects. If we were willing to live without the ability to change them we could take collation as one of the optional parameters to createObjectStore()/createIndex() and reduce a bit of surface area...I don't have a strong preference there. In any case both would use BCP47 names as discussed in this thread (as Jonas pointed out, implementations can also do their thing as long as they don't interfere with BCP47).

Another piece of feedback I heard consistently as I discussed this with various folks at Microsoft is the need to be able to pick up what the UA would consider the collation that's most appropriate for the user environment (derived from settings, page language or whatever). We could support this by introducing a special value that  you can pass to setCollation that indicates "pick whatever is the right for the environment's language right now". Given that there is no other way for people to discover the user preference on this, I think this is pretty important.

Thanks
-pablo

Received on Thursday, 17 March 2011 22:38:35 GMT

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