The current line of the string being enumerated. The line contains just the contents of the line, without the line terminators. See getLineStart:end:contentsEnd:forRange: for a discussion of line terminators.
A reference to a Boolean value that the block can use to stop the enumeration by setting *stop = YES; it should not touch *stop otherwise.
Enumerates the substrings of the specified type in the specified range of the string.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.