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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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Check if NSString is valid number - whole or decimal number

I have an iOS app with a UITextField that allows the user to enter a number in. How can I ensure that the value the user types in is a valid number (either whole or decimal). Here is what I have tried, but for some reason it won't work for decimal…
Supertecnoboff
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Trying to define a custom NSCharacterSet with unicode characters in Swift

I want to define in Swift an NSCharacterSet containing: [Ａ-Ｚ] (note the double-bytes, this is not [A-Z]). What is the proper syntax to do that? The code below that I had working in Objectiv C doesn't seem to translate to Swift so easily.' …
Michel
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rangeOfCharacterFromSet: with numeric set

Hoi! I got a NSString which looks something like this: "$1.00". Always a currency symbol with a value. I format this string to remove the symbol and any non-decimal characters with str = [str stringByTrimmingCharactersInSet:[[NSCharacterSet…
Peter Meinhardt
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How to fix crash bug on componentsSeparatedByCharactersInSet?

I am making IOS app related AddressBook. When I called below function for get phone number which have "+" symbol, I got crash error sometimes. Anyone know this error? Basically I am getting error on componentsSeparatedByCharactersInSet function. -…
James Chan
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how to do UItextfield should allow only value between Range

My Problem is i have to do Like User can enter values in Range ... My range is coming from json here's my code whatever i tried ... here a,b is my start range and b is end range user can enter values better this range not out of range -…
Mayank Patel
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NSString:componentsSeparatedByCharactersInSet inclusive

NSString *infix = @"4+23-54/543*23"; NSCharacterSet *operatorSet = [NSCharacterSet characterSetWithCharactersInString:@"+-*/"]; NSArray *tokens = [infix componentsSeparatedByCharactersInSet:operatorSet]; tokens returns: [@"4", @"23", @"54",…
Daniel Node.js
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NSCaseInsensitiveSearch not works in rangeOfCharacterFromSet

It seems that NSCaseInsensitiveSearch not works in NSString:rangeOfCharacterFromSet. Can someone explain why? is it correct behaviour? NSString *string = @"James Bond Always Rocks"; NSRange range = [string rangeOfCharacterFromSet:[NSCharacterSet…
Avt
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Parsing text, but keeping punctuation

I'm using this little piece of code to go through some inputted text and extracting sentences separated by the markers: NSCharacterSet *punctuation = [NSCharacterSet characterSetWithCharactersInString:@".!?\n"]; NSArray *parts = [data…
Malfunction
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Check if UITextfield contains (? ! $ , etc)

Im doing a conditional statement that checks if a textfield contains certain characters, if it does they an UIAlertView will show. At the moment if the text field contains letters then an the alert is shown, how would I extend my method below to…
DevC
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Detect the presence of nonbreaking space in NSString?

I'm trying to create an NSCharacterSet that I can use to test whether a character is a whitespace or not. This character set: [NSCharacterSet whitespaceAndNewlineCharacterSet] does not include non-breaking spaces, so I'm attempting to build my own…
user714171
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Is there any possibility to use more than one NSCharacterSet Object for the same NSString?

Consider this code: NSString *aString = @"\tThis is a sample string"; NSString *trimmedString = [aString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]]; NSLog(@"The trimmed string: %@",trimmedString); trimmedString =…
Ram Gandhi
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How to find number of special characters in sting in objective C

Help me find the same, tried searching many questions all I found was to check if the string contains a special character, but I want to find the number of special characters in a string in objective - c
pravalikaGovinda
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NLS_CHARACTERSET in nls_session_parameters returns None

An application I'm using with Oracle seems to be having issues with characters, and I ran the queries below to check on the CHARACTERSET. SELECT * FROM nls_session_parameters WHERE PARAMETER='NLS_CHARACTERSET'; SELECT * FROM nls_database_parameters…
Sattesh Maran
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append :00 to whatever is entered in the textfield

My code below restricts the user to only input 2 numbers into a textfield. All I want to do is append ':00' to whatever is entered into whatever is entered into the textfield. So if the user enters 30. The textfield should be 30:00. All code is…
user12418101
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How to split a NSString keeping specific punctuations?

I need to split a sentence in specific punctuation marks, but keeping these punctuations. I'm doing it like this: NSCharacterSet *delimeter = [NSCharacterSet characterSetWithCharactersInString:@"***"]; sentence = [sentence …
neowinston
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