正则表达式结合了多种功能

Question

How can I call 2 functions in my code for one string?

public static string ecleaner(string str)
  {
    return Regex.Replace(str, "[éèê]+", "e", RegexOptions.Compiled);
  }

public static string acleaner(string str)
  {
    return Regex.Replace(str, "[áàâ]+", "a", RegexOptions.Compiled);
  }

Now I want to check the word "Téèááést" ,after this it should look like Teaest .

Answer 1

Did you try this?

string str = "Téèááést";
str = ecleaner(str);
str = acleaner(str);

Answer 2

You could use a MatchEvaluator delegate, like this:

public static string cleaner(string str)
{
    return Regex.Replace(str, "(?<a>[áàâ]+)|(?<e>[éèê]+)", onMatch, RegexOptions.Compiled);
}

private static string onMatch(Match m)
{
    if (m.Groups["a"].Success)
        return "a";
    if (m.Groups["e"].Success)
        return "e";

    return "";
}

Or alternatively:

public static string cleaner(string str)
{
    var groups = new[] { "a", "e" };
    return Regex.Replace(str, "(?<a>[áàâ]+)|(?<e>[éèê]+)", m => groups.First(g => m.Groups[g].Success), RegexOptions.Compiled);
}

Answer 3

    public static class StringExtensions
    {
        public static string ecleaner(this string str)
        {
            return Regex.Replace(str, "[éèê]+", "e", RegexOptions.Compiled);
        }

        public static string acleaner(this string str)
        {
           return Regex.Replace(str, "[áàâ]+", "a", RegexOptions.Compiled);
        }
    }

    //...

    var result = "Téèááést".ecleaner().acleaner();

You could also combine an extension method class with @pswg's answer, to make things even neater.