问各种日期格式的正则表达式iOS

EN

NSError *error = NULL;
NSDataDetector *detector = [NSDataDetector dataDetectorWithTypes:(NSTextCheckingTypes)NSTextCheckingTypeDate error:&error];

NSArray *matches = [detector matchesInString:string
                                     options:0
                                       range:NSMakeRange(0, [string length])];

for (NSTextCheckingResult *match in matches) {
    
    if ([match resultType] == NSTextCheckingTypeDate) {
        
        NSDate *date = [match date];
        
        NSDateFormatter *formatter;
        NSString        *dateString;
        
        formatter = [[NSDateFormatter alloc] init];
        [formatter setDateFormat:@"dd-MM-yyyy HH:mm"];
        
        dateString = [formatter stringFromDate:date];
        NSLog(@"Date: %@",dateString);
   
    }
}

NSError *error = NULL;  
    NSString *expForSlash = @"(\\d{2})((\/)|(\.))(\\d{2})((\/)|(\.))(\\d{4}|\\d{2})";



NSString *expMonthStrNew = @"(Jan|Feb|Mar(ch)?|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)(\\s?)(\\d{2}|\\d{1})(\,?)(\\s?)(\\d{4}|\\d{2})";
NSString *expForreg  = [NSString stringWithFormat:@"%@|%@", expForSlash, expMonthStrNew];//@"(May|Jun)(\\s?)(\\d{2})(\,?)(\\s?)(\\d{4})";

NSRegularExpression *regex = [NSRegularExpression
                              regularExpressionWithPattern:expForreg
                              options:NSRegularExpressionCaseInsensitive
                              error:&error];



NSArray *matches = [regex matchesInString:tesText options:0 range:NSMakeRange(0, [tesText length])];