C# Extension Method - String Split that also accepts an Escape Character

Question

I\'d like to write an extension method for the .NET String class. I\'d like it to be a special varation on the Split method - one that takes an escape character to prevent s

Answer 1

Here is solution if you want to remove the escape character.

public static IEnumerable Split(this string input, 
                                        string separator, 
                                        char escapeCharacter) {
    string[] splitted = input.Split(new[] { separator });
    StringBuilder sb = null;

    foreach (string subString in splitted) {
        if (subString.EndsWith(escapeCharacter.ToString())) {
            if (sb == null)
                sb = new StringBuilder();
            sb.Append(subString, 0, subString.Length - 1);
        } else {
            if (sb == null)
                yield return subString;
            else {
                sb.Append(subString);
                yield return sb.ToString();
                sb = null;
            }
        }
    }
    if (sb != null)
        yield return sb.ToString();
}