Question

Hi all: I need to match similar words using RexEx. For example, if I have a pattern which contains a word like “autonomous”, it should match the word “autonomy” without matching “autonomous”.
Example Code:

void modify(string word)
{
string input = "This island is a colony; however,it is autonomous and " + 
"receives no orders from the mother country, autonomy, N.";
string pattern = @",\s" + word + @"\s[v|n|adj]\.";//word = "autonomous";
Regex reg = new Regex(pattern);
string output = reg.Replace(input, ".");
}

Answer 1

This may be what you are looking for:

string s= "This island is a colony; however,it is autonomous and receives no orders from the mother country, autonomy, N.";;
string pattern="autonomous";
Regex r=new Regex(@"\b(?!"+pattern+")"+pattern.Substring(0,pattern.Length/2)+@".*?\b");
r.Replace(s,".");