Splitting CamelCase

Question

This is all asp.net c#.

I have an enum

public enum ControlSelectionType 
{
    NotApplicable = 1,
    SingleSelectRadioButtons = 2,
    SingleSelectD         


        

Answer 1

This regex (^[a-z]+|[A-Z]+(?![a-z])|[A-Z][a-z]+) can be used to extract all words from the camelCase or PascalCase name. It also works with abbreviations anywhere inside the name.

• MyHTTPServer will contain exactly 3 matches: My, HTTP, Server
• myNewXMLFile will contain 4 matches: my, New, XML, File

You could then join them into a single string using string.Join.

string name = "myNewUIControl";
string[] words = Regex.Matches(name, "(^[a-z]+|[A-Z]+(?![a-z])|[A-Z][a-z]+)")
    .OfType()
    .Select(m => m.Value)
    .ToArray();
string result = string.Join(" ", words);