Question

iphone xcode objective-c:

I have a string with alot of text..


I want to detect how many times @”hello” is in the string…


I know how to detect if it is or isn’t but how do I detect the number of times it appears in the string?

Answer 1

You can use regular expressions for this:

NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"\\bhello\\b" options:NSRegularExpressionCaseInsensitive error:NULL];
NSUInteger numberOfMatches = [regex numberOfMatchesInString:someString options:0 range:NSMakeRange(0, [string length])];