Objective-C

Validate a ULID

See more ULID/UUID Examples

Checks to see if a ULID is valid.

Important: Chilkat's ULID functionality was introduced in v9.5.0.94.

Objective-C

#import <CkoDateTime.h>
#import <NSString.h>

CkoDateTime *dt = [[CkoDateTime alloc] init];

// A ULID must be exactly 26 chars in length,
// and is composed of the following chars: 0123456789ABCDEFGHJKMNPQRSTVWXYZ
// Note: The ULID alphabet excludes the letters I, L, O, and U

// Here's a valid ULID
NSString *ulid = @"01GRGCH4J88RECEN4D4VK4F629";
BOOL valid = [dt UlidValidate: ulid];
NSLog(@"%@%d",@"valid: ",valid);

// Here's an invalid ULID
ulid = @"71GRGxx4Jr8RECEN4D4VK4F62!";
valid = [dt UlidValidate: ulid];
NSLog(@"%@%d",@"valid: ",valid);