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#import "NSString+MGLAdditions.h"
@implementation NSString (MGLAdditions)
- (NSRange)mgl_wholeRange {
return NSMakeRange(0, self.length);
}
- (nullable NSString *)mgl_stringOrNilIfEmpty {
return self.length ? self : nil;
}
- (NSString *)mgl_titleCasedStringWithLocale:(NSLocale *)locale {
NSMutableString *string = self.mutableCopy;
NSOrthography *orthography;
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunguarded-availability-new"
if ([NSOrthography respondsToSelector:@selector(defaultOrthographyForLanguage:)]) {
orthography = [NSOrthography defaultOrthographyForLanguage:locale.localeIdentifier];
}
#pragma clang diagnostic pop
#endif
[string enumerateLinguisticTagsInRange:string.mgl_wholeRange scheme:NSLinguisticTagSchemeLexicalClass options:0 orthography:orthography usingBlock:^(NSString * _Nonnull tag, NSRange tokenRange, NSRange sentenceRange, BOOL * _Nonnull stop) {
NSString *word = [string substringWithRange:tokenRange];
if (word.length > 3
|| !([tag isEqualToString:NSLinguisticTagConjunction]
|| [tag isEqualToString:NSLinguisticTagPreposition]
|| [tag isEqualToString:NSLinguisticTagDeterminer]
|| [tag isEqualToString:NSLinguisticTagParticle]
|| [tag isEqualToString:NSLinguisticTagClassifier])) {
unichar firstLetter = [[word capitalizedStringWithLocale:locale] characterAtIndex:0];
NSString *suffix = [word substringFromIndex:1];
if (!([word hasPrefix:@"i"] && suffix.length
&& [[NSCharacterSet uppercaseLetterCharacterSet] characterIsMember:[suffix characterAtIndex:0]])) {
word = [NSString stringWithFormat:@"%C%@", firstLetter, suffix];
}
}
[string replaceCharactersInRange:tokenRange withString:word];
}];
return string;
}
- (NSString *)mgl_stringByTransliteratingIntoScript:(NSString *)script {
if (@available(iOS 9.0, *)) {
NSMutableString *string = self.mutableCopy;
NSStringTransform transform;
if ([script isEqualToString:@"Latn"]) {
transform = NSStringTransformToLatin;
} else if ([script isEqualToString:@"Hans"]) {
// No transform available.
} else if ([script isEqualToString:@"Cyrl"]) {
transform = @"Any-Latin; Latin-Cyrillic";
} else if ([script isEqualToString:@"Arab"]) {
transform = @"Any-Latin; Latin-Arabic";
}
return transform ? [string stringByApplyingTransform:transform reverse:NO] : string;
} else {
return self;
}
}
@end
@implementation NSAttributedString (MGLAdditions)
- (NSRange)mgl_wholeRange {
return NSMakeRange(0, self.length);
}
- (NSAttributedString *)mgl_attributedStringByTrimmingCharactersInSet:(NSCharacterSet *)set {
NSScanner *scanner = [NSScanner scannerWithString:self.string];
scanner.charactersToBeSkipped = nil;
NSString *prefix;
[scanner scanCharactersFromSet:set intoString:&prefix];
NSString *trimmedString = [self.string stringByTrimmingCharactersInSet:set];
return [self attributedSubstringFromRange:NSMakeRange(prefix.length, trimmedString.length)];
}
@end
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