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Questions tagged [nscharacterset]

An NSCharacterSet object represents a set of Unicode-compliant characters. NSString and NSScanner objects use NSCharacterSet objects to group characters together for searching operations, so that they can find any of a particular set of characters during a search. The cluster’s two public classes, NSCharacterSet and NSMutableCharacterSet, declare the programmatic interface for static and dynamic character sets, respectively.

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Why whitespaceAndNewlineCharacterSet doesn't remove spaces?

This code SHOULD clean phone number, but it doesn't: NSLog(@"%@", self.textView.text); // Output +358 40 111 1111 NSString *s = [self.textView.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; NSLog(@"%@",…
JOM
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Remove last punctuation of a swift string

I'm trying to remove the last punctuation of a string in swift 2.0 var str: String = "This is a string, but i need to remove this comma, \n" var trimmedstr: String =…
Vitalik K
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creating NSCharacterSet with Unicode SMP entries & testing membership -- is this a bug?

Given the code: NSString *a = @"a"; NSString *clef = @""; UTF32Char utf32char = 0x1D11E; // NSCharacterSet *cs1 = [NSCharacterSet characterSetWithCharactersInString:@""]; NSCharacterSet *cs2 = [NSCharacterSet…
Orangenhain
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What is differnce between NSString and NSCharacterset?

I studying NSCharacterset class. NSString and NSCharacterset look like similar class. Who can explain difference between NSString and NSCharacterset? When use NSCharacterset? Thanks your help..
S.J. Lim
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Value of type CharacterSet has no member InvertedSet - Swift 3

I am trying to convert over swift 2 code to swift 3: var customAllowedSet = NSCharacterSet(charactersInString:"=\"#%/<>?@\\^`{|}").invertedSet It throws this error: Value of type CharacterSet has no member InvertedSet
Tim Nuwin
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allow english and arabic numbers input UITextField swift

I write code that only allow english number in UITextField and I want to check arabic numbers and allow thats. this is my code : func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String)…
MmD
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UITextfield content validation (letters, numbers and special punctuation marks)

I have a UITextfield that holds an username field, then I would like to add a validation so user cannot type a username that is different from letters, numbers and "_-." punctuation marks. I'm trying to use NSCharacterset to do that but without…
vilelam
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UITextField - Prevent user from typing non-standard characters (like Emoticons)

My app creates and stores EKEvents into the standard Calendar database, however, I've found that if I use an emoticon as the "notes" for an event, it causes a crash when trying to read the event out of the Calendar. I don't want or need the use of…
jhilgert00
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How to set a dialog code page in rc-file

I use VS 2010 and write in C++. How can i set a dialog codepage in a resource file (rc-file)? I output a text through DrawText Win API function. I draw text right in a dialog (not in its child contols). I need to draw the "single right-pointing…
Vitaly
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How to Print the characterset of a Font?

I have downloaded a font from the internet. Now I want to Print the Characterset of that font. I got the CFCharacterSetRef of that font. But I don't know how to print that CFCharacterSetRef. This is my coding. NSString…
Aravindhan
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Strange Behavior In CharacterSet.contains() Method, With High UTF8 Characters Mixed With ASCII

Here's the deal: I am creating a StringProtocol extension to add the ability to do a split, based on a character set (any character in the set is used to split -greedy comparison). The issue is that I am having difficulties comparing against a…
Chris Marshall
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How to know which CharacterSet contains a given character?

Is there a way to check if a character belongs to a CharacterSet? I wanna know what CharacterSet should I use for character -. Do I use symbols? I've checked this documentation but still no idea.…
Glenn Posadas
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Trimming characters of NSXMLParser

What is the right way to trim characters in foundCharacters of NSXMLParser? I've found many examples that do it like this: - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { NSString *characters = [string…
hpique
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How come I didn't have to instantiate the NSCharacterSet object first before using it?

I'm following a tutorial learning about delegates and protocols while using the UITextField object. In the tutorial I noticed that I didn't have to instantiate the NSCharacterSet object first by typing let letterCharacters = NSCharacterSet() The…
Laurence Wingo
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Force NSTextField to Only Accept Decimal (#.#) Numbers and Periods

I'm trying to make it so an NSTextField will only accept numbers and periods like 12.4 and 3.6 in a Mac app. I feel like I'm getting pretty close after reviewing other SO questions, but I can't quite get it. The below code works except that it won't…
Clifton Labrum
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