Here's the code I'm using, it prints nothing no matter what sentence I use on the device. On simulator it works fine!
- (NSMutableArray *)getTagEntries:(NSString *)sentence {
NSArray<NSLinguisticTagScheme> *tagSchemes = [NSLinguisticTagger availableTagSchemesForLanguage:@"en"];
NSLinguisticTaggerOptions options = NSLinguisticTaggerJoinNames | NSLinguisticTaggerOmitWhitespace;
NSLinguisticTagger *linguisticTagger = [[NSLinguisticTagger alloc] initWithTagSchemes:tagSchemes options:options];
linguisticTagger.string = sentence;
__block NSMutableArray *tagEntries = [@[] mutableCopy];
[linguisticTagger enumerateTagsInRange:NSMakeRange(0, sentence.length) scheme:NSLinguisticTagSchemeNameTypeOrLexicalClass options:options usingBlock:^(NSLinguisticTag tag, NSRange tokenRange, NSRange sentenceRange, BOOL *stop) {
NSString *token = [sentence substringWithRange:tokenRange];
NSLog(@"%@ -> %@", token, tag);
[tagEntries addObject:@{@"token":token, @"tag":tag}];
}];
return tagEntries;
}
When I try to print out the available schemes on my iPhone, Lexical is not an option. How come!?
NSArray<NSLinguisticTagScheme> *availSchemes = [NSLinguisticTagger availableTagSchemesForLanguage:@"en"];
for (NSLinguisticTagScheme scheme in availSchemes) {
NSLog(@"Tag scheme %@", scheme);
}
// output:
// Tag scheme Language
// Tag scheme Script
// Tag scheme TokenType
Using iPhone 6+ with iOS 11.
