On 15 Dec 2009, at 23:13, Jim Turner wrote: > I believe you need the diacritic insensitive option: > > 'someProperty BEGINSWITH[d] "ก"'
Well, no. BEGINSWITH[d] tells me that "กิน" begins with "กุ" - that is: it ignores not only the tone-marks, but also some vowels, which makes it quite unusable for Thai text. MATCHES can be used (it seems to act like NSLiteralSearch) but it is quite slow. > > Look up NSComparisonPredicate options in the documentation for more > discussion. NSComparisonPredicate Class Reference mentions under "NSComparisonPredicate Options" the [n] modifier. I just tried it: BEGINSWITH[n] finds that "กิน" begins with "ก" - same as NSLiteralSearch. But CONTAINS[n] does not work like NSLiteralSearch. > As for what the 'w' means, it's Spotlight specific. "The > Comparison is word based, and also detects transitions from lower-case > to upper-case." > > http://developer.apple.com/Mac/library/documentation/Carbon/Conceptual/SpotlightQuery/Concepts/QueryFormat.html > Somehow I have the feeling that the documention for NSPredicates has some room for improvements. Thanks very much for your links! Gerriet. > -- > Jim > http://nukethemfromorbit.com > > > > On Tue, Dec 15, 2009 at 1:30 AM, Gerriet M. Denkmann > <gerr...@mdenkmann.de> wrote: >> >> This works. i.e. returns {0,1}: >> NSRange r2 = [ @"ก่ี" rangeOfString: @"ก" options: NSAnchoredSearch | >> NSLiteralSearch ]; >> (without NSLiteralSearch it returns NSNotFound). >> >> but an NSPredicate with: "someProperty BEGINSWITH "ก" " does NOT find ก่ี". >> (the NSPredicate is to be used with -[NSArrayController setFilterPredicate:] >> to query Core Data). >> >> So: is there some string_option equivalent to NSLiteralSearch? >> >> And a related question: where are the available string_options defined? >> The Predicate Programming Guide has: >> string_options ::= c | d | cd >> >> but also an example with "w": >> ((* = "FooBar*"wcd)) || (kMDItemTextContent = "FooBar*"cd)) >> >> 10.6.2 _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
