Question

I may be looking at this incorrectly, but right now, if a user enters certain special characters in a search bar, the app will crash. These include \ and ‘.

The apostrophe is a problem, in that words like “isn’t” and “doesn’t” will cause a crash

How should I go about working around this problem?

Many thanks

Answer 1

Before doing a search using the search string, pre-filter it, like this:

NSString *safeSearchString = [[searchString componentsSeparatedByCharactersInSet:[[NSCharacterSet alphanumericCharacterSet] invertedSet]] componentsJoinedByString:@""];