private static void UpperCaseRomanNumeral(string item, ref string result)
{
CultureInfo cultureInfo = CultureInfo.InvariantCulture;
TextInfo textInfo = cultureInfo.TextInfo;
List <string> resultList = new List <string>();
Regex regexRoman = new Regex(@"(\b(M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})|[IDCXMLV])\b)");
Match matchResult = regexRoman.Match(item);
while (matchResult.Success)
{
resultList.Add(matchResult.Value);
matchResult = matchResult.NextMatch();
}
resultList = resultList.Where(x => !string.IsNullOrEmpty(x)).ToList();
foreach (string Roman in resultList)
{
if (!string.IsNullOrEmpty(Roman))
{
string RomanResult = textInfo.ToTitleCase(Roman.ToLower());
result = result.Replace(RomanResult, Roman);
}
}
}