public static IEnumerable <FormatElementHelper> FindConsecutiveChars(this string testObject, char charToReplace)
        {
            var helpers = new List <FormatElementHelper>();

            var helper = new FormatElementHelper();

            var formatCharacters    = testObject.ToCharArray();
            var charPreviouslyFound = false;

            for (var i = 0; i < formatCharacters.Length; i++)
            {
                if (ExaminingCharToReplace(charToReplace, formatCharacters, i))
                {
                    UpdateHelper('0', charToReplace, helper);
                    charPreviouslyFound   = true;
                    helper.PreviousLetter = formatCharacters[i] != charToReplace && char.IsLetter(formatCharacters[i]) ? formatCharacters[i] : helper.PreviousLetter;
                }
                else if (charPreviouslyFound && ExaminingFullStop(formatCharacters, i) && NextCharacterIsCharToReplace(charToReplace, formatCharacters, i))
                {
                    UpdateHelper('.', '.', helper);
                }
                else
                {
                    charPreviouslyFound   = false;
                    helper.PreviousLetter = char.IsLetter(formatCharacters[i]) ? formatCharacters[i] : helper.PreviousLetter;
                }

                if (HelpersNotReadyToBeUpdated(helper, formatCharacters, charPreviouslyFound, i))
                {
                    continue;
                }

                helpers.Add(helper);
                helper = new FormatElementHelper();
            }

            return(helpers.OrderByDescending(x => x.StringReplacement.Length)
                   .ThenBy(x => x.StringReplacement.Contains('.')));
        }
 private static bool HelpersNotReadyToBeUpdated(FormatElementHelper helper, IReadOnlyCollection <char> formatCharacters, bool charPreviouslyFound, int i)
 {
     return(helper.StringReplacement == null || (charPreviouslyFound && i != formatCharacters.Count - 1));
 }
 private static void UpdateHelper(char formatAddition, char replacementAddition, FormatElementHelper helper)
 {
     helper.FormatSpecifier   += formatAddition;
     helper.StringReplacement += replacementAddition;
 }