KnowledgeHub
Questions
Tags
Users
Search
Alex Rivera
|
Logout
Edit Question
Title
Body
I've got a string that needs to be only a-z, 0-9 and _ How do I check if the input is valid? I've tried this but it accepts letter like å,ä,ö,ø etc. NSString *string = [NSString stringWithString:nameField.text]; NSCharacterSet *alphaSet = [NSCharacterSet alphanumericCharacterSet]; [string stringByTrimmingCharactersInSet:alphaSet]; [string stringByReplacingOccurrencesOfString:@"_" withString:@""]; BOOL valid = [[string stringByTrimmingCharactersInSet:alphaSet] isEqualToString:@""];
Tags (comma-separated)
Save Edits
Cancel