Question

I have a problem. I have some text that I want to parse. The problem is I find it using regular expressions:

text = Regex.Replace(text, @"\(DOWN\)\(LShift\)(.*?)\(UP\)\(LShift\)", "$1");

I want to parse each letter from $1 value into something using my method. But the input for this method isn’t $1 variable value but a string of value "$1".

I tried:

text = Regex.Replace(text, @"\(DOWN\)\(LShift\)(.*?)\(UP\)\(LShift\)", ShiftsParser("$1"));

Answer 1

Look into using a MatchEvaluator. Example using a lambda:

var result = Regex.Replace(input, pattern, match => 
{
    // $1 is equivalent to match.Groups[1].Value,
    // so do whatever you want and return the value here
});