How to count the number of lines in an Objective-C string (NSString)?

Question

I want to count the lines in an NSString in Objective-C.

  NSInteger lineNum = 0;
  NSString *string = @\"abcde\\nfghijk\\nlmnopq\\nrstu\";
  NSInteger lengt         


        

Answer 1

well, a not very efficient, but nice(ish) looking way is

NSString *string = @"abcde\nfghijk\nlmnopq\nrstu";
NSInteger length = [[string componentsSeparatedByCharactersInSet:
                                [NSCharacterSet newlineCharacterSet]] count];

Swift 4:

myString.components(separatedBy: .newlines)