Turn "SomethingLikeThis" into "Something Like This"

FromCamelToSpaced.cs

using System.Text.RegularExpressions;

namespace Spin.TradingServices.Common.Library.Extensions
{
    public static class StringExtensions
    {
        private const string CamelToSpacedRegexString =
            @"(?<=[A-Z])(?=[A-Z][a-z])|(?<=[^A-Z])(?=[A-Z])|(?<=[A-Za-z])(?=[^A-Za-z])";

        private static readonly Regex CamelToSpacedRegex = new Regex(CamelToSpacedRegexString,
                                                           RegexOptions.IgnorePatternWhitespace);

        public static string FromCamelToSpaced(this string camelString)
        {
            return CamelToSpacedRegex.Replace(camelString, " ");
        }
    }
}