NSPredicate and NSRegularExpression

Question

It should be really simple, but he does not want to work. I want to get CoreData using NSPredicate, which uses NSRegularExpression. I would like to search for myString or myString_10 (10 is any possible number, for example myString_333).

This is my code:

NSString *regexString = [NSString stringWithFormat:@"%@_[0-9]+", value];
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:regexString
                                                                           options:NSRegularExpressionSearch                                  
                                                                             error:&error];

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(label = %@) OR (label = %@)", value, regex];

Value is a string and label is an entity key.

If the value is New Project, NSFetchRequest returns an array with one object, although I have two labels in my model (New Project and New Project_1) that need to be retrieved.

What am I doing wrong?

Answer 1

NSString . . Predicate. MATCHES = regexString regex. ICU , - .