Example of prefixing a list with a leading character. In this case, adding a • to the front of each line.

gistfile1.m

NSString *someText = ...;
NSMutableString *someLines = [NSMutableString new];
[someText enumerateLinesUsingBlock:^(NSString *line, BOOL *stop) {
	// Make sure the line isn't just whitespace
	NSMutableString *mutableLine = [line mutableCopy];
	CFStringTrimWhitespace((__bridge CFMutableStringRef)mutableLine);
	if ([mutableLine length])
	{
		[someLines appendFormat:@" • %@\n", line];
	}
}];
if ([someLines length])
{
	[someLines deleteCharactersInRange:NSMakeRange([someLines length] - 1, 1)];
}