How to capitalize the first word of the sentence in Objective-C?

Question

I\'ve already found how to capitalize all words of the sentence, but not the first word only.

NSString *txt =@\"hi my friends!\"
[txt capitalizedString];
         


        

Answer 1

In swift you can do it as followed by using this extension:

extension String {
    func ucfirst() -> String {
        return (self as NSString).stringByReplacingCharactersInRange(NSMakeRange(0, 1), withString: (self as NSString).substringToIndex(1).uppercaseString)
    }    
}

calling your string like this:

var ucfirstString:String = "test".ucfirst()

Answer 2

I know the question asks specifically for an Objective C answer, however here is a solution for Swift 2.0:

let txt = "hi my friends!"
var sentencecaseString = ""

for (index, character) in txt.characters.enumerate() {
    if 0 == index {
        sentencecaseString += String(character).uppercaseString
    } else {
        sentencecaseString.append(character)
    }
}

Or as an extension:

func sentencecaseString() -> String {
    var sentencecaseString = ""
    for (index, character) in self.characters.enumerate() {
        if 0 == index {
            sentencecaseString += String(character).uppercaseString
        } else {
            sentencecaseString.append(character)
        }
    }
    return sentencecaseString
}

Answer 3

pString = [pString
           stringByReplacingCharactersInRange:NSMakeRange(0,1)
           withString:[[pString substringToIndex:1] capitalizedString]];

Answer 4

Here is another go at it:

NSString *txt = @"hi my friends!";
txt = [txt stringByReplacingCharactersInRange:NSMakeRange(0,1) withString:[[txt substringToIndex:1] uppercaseString]];

For Swift language:

txt.replaceRange(txt.startIndex...txt.startIndex, with: String(txt[txt.startIndex]).capitalizedString)

Answer 5

Use

- (NSArray *)componentsSeparatedByCharactersInSet:(NSCharacterSet *)separator

and capitalize the first object in the array and then use

- (NSString *)componentsJoinedByString:(NSString *)separator

to join them back

Answer 6

you can user with regular expression i have done it's works for me simple you can paste below code +(NSString*)CaptializeFirstCharacterOfSentence:(NSString*)sentence{

NSMutableString *firstCharacter = [sentence mutableCopy];
NSString *pattern = @"(^|\\.|\\?|\\!)\\s*(\\p{Letter})";
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:pattern options:0 error:NULL];
[regex enumerateMatchesInString:sentence options:0 range:NSMakeRange(0, [sentence length]) usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop) {
    //NSLog(@"%@", result);
    NSRange r = [result rangeAtIndex:2];
    [firstCharacter replaceCharactersInRange:r withString:[[sentence substringWithRange:r] uppercaseString]];
}];
NSLog(@"%@", firstCharacter);
return firstCharacter;

} //Call this method NsString *resultSentence = [UserClass CaptializeFirstCharacterOfSentence:yourTexthere];