Question

I would like to take a pascal-cased string like ‘CountOfWidgets’ and convert it into something more user-friendly like ‘Count of Widgets’ in C#. Multiple adjacent uppercase characters should be left intact. What is the most efficient way to do this?

NOTE: Duplicate of .NET – How can you split a "caps" delimited string into an array?

Answer 1

Don’t know about efficient but at least it’s terse:

Regex r = new Regex('([A-Z]+[a-z]+)'); string result = r.Replace('CountOfWidgets', m => (m.Value.Length > 3 ? m.Value : m.Value.ToLower()) + ' ');