How do I find Regex Matches in an array including repeats in C#

I have a method in C# that uses Regex to find any strings that match any {{word:word}} pattern:

private string ModifyVariables(string text) {
    String pattern = @"{{([\w|]+:\w+)}}";
    MatchCollection matches = Regex.Matches(text, pattern);

    for (int i = 0; i < matches.Count; i++) {
        Match match = Regex.Match(text, pattern);

        string value = GetVariableValue(match.Value);

        text = text.Replace(match.Value, value);
    }

    return text;
}

The problem is that MatchCollection is a set and therefore does not include repeats. If there is another string that matches the regex and has the exact same string, then it will not change MatchCollection.

>Solution :

Are you looking for Regex.Replace?

private string ModifyVariables(string text) => Regex
  .Replace(text, @"{{([\w|]+:\w+)}}", match => GetVariableValue(match.Value));

Here for each variable found (match) we change the match (variable usage) with variable’s value.