Question

I’m using preg_split to split a string based on a regular expression in PHP, using the following code:

$array = preg_split("~(?<!\*),~", $string);

What is the equivalent in Cocoa?

Any help appreciated.

Answer 1

Ended up writing my own method using NSRegularExpression

+ (NSArray *)preg_split:(NSString *)expression withSubject:(NSString *)subject {

    NSRegularExpression *exp = [NSRegularExpression regularExpressionWithPattern:expression options:0 error:nil];

    NSArray *matches = [exp matchesInString:subject options:0 range:NSMakeRange(0, [subject length])];
    NSMutableArray *results = [[NSMutableArray alloc] init];

    for (NSTextCheckingResult *match in matches) {
        [results addObject:[subject substringWithRange:[match range]]];
    }

    return results;

}