String whitespace

Question

I have a string that will have multiple whitespace characters in it and I'm wanting to seperate each word by 1 whitespace character. Say if the string is "Hi! My name is troy        and      i love                 waffles!", I want to trim that so it is "Hi! My name is troy and I love waffles!". How would I do this?

Answer 1

Use the regular expression \s+ (one or more whitespace) with the Regex.Replace method from the System.Text.RegularExpressions namespace:

s = Regex.Replace(s, @"\s+", " ");

If you just want to replace spaces you can change the "\s" to a space "":

s = Regex.Replace(s, @" +", " ");

Answer 2

string.Join(" ","Hi! My name is troy        and      i love                 waffles!"
    .Split(new char[]{' '},StringSplitOptions.RemoveEmptyEntries)
    .Select (s => s.Trim()))