CODEWITHSUNDEEP
objective-ciphoneregexnsstringnsregularexpression
Aravind Av
Aravind Av

Reputation: 1

How to form a reular expression to remove tabs and newlines in objective c

i have a string containing tabs and newlines "\r\n\r\n\t\r\n\t\t\r\n\t\t\t\r\n\t\t\t\t\r\n\t\t\t\t\t\r\n\t\t\t\t\t\tTHIS IS THE STRING \r\n\t\t\t\t\t\r\n\t\t\t\t\t\t". I have to remove multiple blank lines if it has .If it has ony one blank line ,i have to omit it.

So i tried using 

 NSString *finalString = [orginal  stringByReplacingOccurrencesOfString:@"^(.*)(\r\n\t){2,100}+"
                                                             withString:@""
                                                                options:NSRegularExpressionSearch
                                                                  range:NSMakeRange(0,orginal.length)];

to remove newlines .Managed to remove few blank lines ,but its not working for all.Also i need to remove tab space.As i new to regex expression, any help will be appreciated.

Upvotes: 0

Views: 170

Answers (1)

Mike
Mike

Reputation: 9835

Easier method would be the following:

finalString = [finalString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

Upvotes: 1

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