Question

I have a NSString with successive space, tab, newlines. Is there any method to replay them by only one space? I have a small UIlabel view to display them.

Answer 1

You can try with this:

NSString *string = @" spaces in front and at the end ";
NSString *trimmedString = [string stringByTrimmingCharactersInSet:
                              [NSCharacterSet whitespaceAndNewlineCharacterSet]];

The key here is whitespaceAndNewlineCharacterSet, from the Apple doc:

Returns a character set containing only the whitespace characters space (U+0020) and tab (U+0009) and the newline and nextline characters (U+000A–U+000D, U+0085).