Replace character in NSMutableAttributedString

Question

This works for a regular NSString:

NSString *newString = [myString stringByReplacingOccurrencesOfString:@"," withString:@""];

But there is no such method for NSMutableAttributedString. How could I remove all instances of a comma in an NSMutableAttributedString?

score 7 · Answer 1 · answered Jul 21 '16 at 13:13

let attrString = NSMutableAttributedString(string: "Hello <b>friend<b>")

attrString.mutableString.replaceOccurrencesOfString("<b>", withString: "", options: NSStringCompareOptions.CaseInsensitiveSearch, range: NSRange(location: 0, length: attrString.length))

Try this :)

score 1 · Answer 2 · answered Apr 14 '15 at 19:39

1

Do it before you create the attributed string, if you can or depending on how you source it. If you can't then you can use replaceCharactersInRange:withString: (or replaceCharactersInRange:withAttributedString:), but you need to know the range so you need to search and iterate yourself.

answered Apr 14 '15 at 19:39

Wain

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I already have the attributed string. It may include text attachments, etc. I know I have to use replaceCharactersInRange:withString but like you said, I don't know the ranges. – soleil Apr 14 '15 at 19:45
That's why you would preferentially 'fix' the string first. You can get the `string` - the plain version of the attributed string - and find the range of the target string. But, you need to get it on each iteration as you'll be mutating the original string, or track the mutation range... – Wain Apr 14 '15 at 19:48

casillas · Answer 3 · 2015-04-14T19:47:24.477

1

NSString *newString= "I want to ,show, you how to achieve this";
NSMutableAttributedString *displayText = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@",newString]];
[[displayText mutableString] replaceOccurrencesOfString:@"," withString:@"" options:NSCaseInsensitiveSearch range:NSMakeRange(0, displayText.string.length)];

edited Apr 14 '15 at 19:47

answered Apr 14 '15 at 19:39

casillas

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The first version didn't work, because you assigned an immutable string to newString. The second version: Why on earth are you using stringWithFormat? – gnasher729 Apr 14 '15 at 19:44

score 0 · Answer 4 · answered Apr 14 '15 at 19:40

0

You can initialize the attributed string with the stripped string with the designed init. No?

answered Apr 14 '15 at 19:40

jalone

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score 0 · Answer 5 · edited May 23 '17 at 12:09

The code could be applied from my answer here:

NSAttributedString *attributedString = ...;
NSAttributedString *anotherAttributedString = ...; //the string or characters which will replace

while ([attributedString.mutableString containsString:@"replace"]) {
        NSRange range = [attributedString.mutableString rangeOfString:@"replace"];
        [attributedString replaceCharactersInRange:range  withAttributedString:anotherAttributedString];
    }

Replace character in NSMutableAttributedString

5 Answers5

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