How to check the validity of a GUID (or UUID) using NSRegularExpression or any other effective way in Objective-C

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The method should return TRUE if the NSString is something like @"{A5B8A206-E14D-429B-BEB0-2DD0575F3BC0}" and FALSE for a NSString like @"bla bla bla"

I am using something like:

- (BOOL)isValidGUID {

    NSError *error;

    NSRange range = [[NSRegularExpression regularExpressionWithPattern:@"(?:(\\()|(\\{))?\\b[A-F0-9]{8}(?:-[A-F0-9]{4}){3}-[A-Z0-9]{12}\\b(?(1)\\))(?(2)\\})" options:NSRegularExpressionCaseInsensitive error:&error] rangeOfFirstMatchInString:self.GUID options:0 range:NSMakeRange(0, [self.GUID length])];

    if (self.GUID && range.location != NSNotFound && [self.GUID length] == 38) {

        return TRUE;

    } else {

        return NO;
    }
}

but it is not working as I have expected.

Important: GUID which I am using is enclosed by curly braces like this: {A5B8A206-E14D-429B-BEB0-2DD0575F3BC0}

(or UUID) using NSRegularExpression or any other effective way in , This regex matches for me \A\{[A-F0-9]{8}-[A-F0-9]{4}-[A-F0-9]{4}-[A-F0-9]{4}-[A- F0-9]{12}\}\Z. In short: \A and \Z is the beginning and end of the string; \{ and \} is� 7 How to check the validity of a GUID (or UUID) using NSRegularExpression or any other effective way in Objective-C Dec 18 '13 6 UITabbarController selectedIndex and selectedViewController do not work May 31 '14

This function will do the job..

-(BOOL)isValidUUID : (NSString *)UUIDString
{
     return (bool)[[NSUUID alloc] initWithUUIDString:U‌​UIDString]; 
}

Thanks @Erzékiel

iOS NSRegularExpression to detect UUID, Here is the code that I wrote to accomplish the UUID checking, it is To use this NSString category, you would just do something like this: Tags: iPhone SDK http://stackoverflow.com/questions/20652833/how-to-check-the-validity-of-a-guid- or-uuid-using-nsregularexpression-or-any-o/ My other sites. A universally unique identifier (UUID) is an identifier standard used in software construction. The meaning of each bit is defined by any of several variants. It is a 128-bit value. The tool will test if your 'GUID' is in fact a GUID. You can simply enter an UUID number and click the 'Validate' button.

You can use the following method to check this:

- (BOOL)isUUID:(NSString *)inputStr
{
    BOOL isUUID = FALSE;
    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}" options:NSRegularExpressionCaseInsensitive error:nil];
    NSInteger matches = [regex numberOfMatchesInString:inputStr options:0 range:NSMakeRange(0, [inputStr length])];
    if(matches == 1)
    {
       isUUID = TRUE;
    }
    return isUUID;
}

User Goppinath, 7 How to check the validity of a GUID (or UUID) using NSRegularExpression or any other effective way in Objective-C � 6 UITabbarController selectedIndex and� For the purpose of this post, I will use UUID (Universally Unique Identifier) to mean both UUID and GUID (Globally Unique Identifier, Microsoft's implementation of UUID). I've been thinking a lot about UUID's lately. The system I've inherited at work is plagued by their usage.

Consider the shortened UUID format. Use code below:

-(BOOL)isValidUUID:(NSString*)uuidString{   
NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:uuidString];
if (uuid ) {
    return YES;
}

NSError *error;
NSRegularExpression *reg = [NSRegularExpression regularExpressionWithPattern:@"[^0-9|^a-f]" options:NSRegularExpressionCaseInsensitive error:&error];
NSArray *matches = [reg matchesInString:uuidString options:NSMatchingReportCompletion range:NSMakeRange(0, uuidString.length)];

if (matches.count == 0 && (uuidString.length == 4 || uuidString.length ==8) ) {
    return YES;
}else{
    return NO;
}
}

IsValid, To revert to the old behavior use the application-level setting function: any UDF . numeric: a numeric value; equivalent to the IsNumeric function. guid See CreateUUID. If any of the submitted values does not meet the validation test, In ColdFusion 11, the isValid function behaves in a different way. To see the uuid of a hard disk partition I just boot the system up with a Linux CD and goto my computer mount, click on, the partition I want to see. The uuid number of the Linux partition will be displayed. You can also see disk uuid by running Linux Disk utility after the Linux CD boot up.

stackoverflow, How to check the validity of a GUID (or UUID) using NSRegularExpression or any other effective way in Objective-C. 发表于2019-9-24 | | 暂无分类. The method� GUID Test and Validate. Use this to test if your 'GUID' is in fact a GUID. You could count the sections and see how many characters are in each but why bother. You can simply enter the text and hit the 'Test and Validate' button. The site will use Microsoft .NET to check the GUID/UUID.

【在Objective+C中+我应该使用哪个压缩库来正确地组装一个有效的 , 读取XLSX文件并在Grails中存储数据的有效方法- Efficient way to read a XLSX file and 方法检查GUID(或UUID)的有效性- How to check the validity of a GUID (or UUID) using NSRegularExpression or any other effective way in� A Version 4 UUID is a universally unique identifier that is generated using random numbers. The Version 4 UUIDs produced by this site were generated using a secure random number generator. The UUIDs generated by this site are provided AS IS without warranty of any kind, not even the warranty that the generated UUIDs are actually unique.

Page 3, Chan:6995329 |RSSing.com, But before you go and rush into using MKLocalSearch , you'll have to know a GPUImage is, at its core, an Objective-C abstraction around a rendering pipeline. C/C++ libraries power NSRegularExpression , CFStringTransform , and other NSUUID was added to Foundation in iOS 6 as a way to easily create UUIDs. Hello, I'm making a method that converts all usernames into UUIDs from a configuration. Although, I need to check every key in an Entry<String, Object>, checking if it's a valid UUID or not. The way I use is:

Comments
  • Works fine for me ! It could be minimized like this : return (bool)[[NSUUID alloc] initWithUUIDString:UUIDString];
  • Thanks. This should be an accepted answer. Works fine on iOS 9.
  • Simple and straightforward. Thanks.