ReactiveCocoaで日本語入力

iOSのカスタムキーボードでReactiveCocoaを利用して日本語入力を試みた内容です。

Transcript

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    RACSignal *signal = [self rac_signalForSelector:@selector(buttonDidTouchUp:)]; return [[[signal reduceEach:^(KeyboardButton *button){ return button; }] filter:^BOOL(KeyboardButton *button) { return button.keyIndex < KeyboardButtonIndexShift; }] map:^(KeyboardButton *button) { NSString *inputCharacter = [button titleForState:UIControlStateNormal]; return inputCharacter; }]; 
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18. I P O O RACSignal *vowelSignal = [[inputSignal filter:^BOOL(NSString *inputCharacter) { return [@[@"A", @"I", @"U", @"E", @"O"] containsObject:inputCharacter]; }] map:^(id _) { NSMutableString *mutableBuffer; mutableBuffer = [NSMutableString stringWithString:self.buffer]; CFStringTransform((CFMutableStringRef)mutableBuffer, NULL, kCFStringTransformLatinHiragana, FALSE); return [NSString stringWithString:mutableBuffer]; }]; ฼Ի
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    4USFBN I P O O RACSignal *consecutiveSignal = [[[bufferedInputConnection.signal combinePreviousWithStart:@"" reduce:^(NSString *previous, NSString *current) { return [NSSet setWithArray:@[previous, current]]; }] filter:^BOOL(NSSet *characters) { return [characters count] == 1; }] map:^(NSSet *characters) { NSString *consecutiveCharacter = [characters anyObject]; return ([consecutiveCharacter isEqualToString:@"N"]) ? @"Μ" : @"ͬ"; }]; ม׵
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    4USFBN RACSubject *transformedCharacter = [RACSubject subject]; [[[RACSignal merge:@[vowelSignal, consecutiveSignal]] doNext:^(id _) { self.buffer = [[NSMutableString alloc] init]; }] subscribe:transformedCharacter]; ม׵
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