I want to count the lines in an NSString in Objective-C.
NSInteger lineNum = 0;
NSString *string = @"abcde\nfghijk\nlmnopq\nrstu";
NSInteger length = [string length];
NSRange range = NSMakeRange(0, length);
while (range.location < length) {
range = [string lineRangeForRange:NSMakeRange(range.location, 0)];
range.location = NSMaxRange(range);
lineNum += 1;
}
Is there an easier way?
Apple recommends this method:
NSString *string;
unsigned numberOfLines, index, stringLength = [string length];
for (index = 0, numberOfLines = 0; index < stringLength; numberOfLines++)
index = NSMaxRange([string lineRangeForRange:NSMakeRange(index, 0)]);
See the article. They also explain how to count lines of wrapped text.