Using a var in regex

Asked Jan 07 '17 at 17:36

Active Jan 07 '17 at 18:35

Viewed 18 times

I want to search for a specific (variable) word in a file.

private int read_inv(string file, string part) // part = SCRAP
{
    string text = File.ReadAllText(invFolder + file + ".inv");


    string find = @"(?i)\bSCRAP\b"; // this return 3 like it should be
    string find = @"(?i)\b"+part+"\b"; // this return 0

    Regex r = new Regex(find);
    MatchCollection matches = r.Matches(text);
    int iCount = matches.Count;

    return matches.Count;
}

edited Jan 07 '17 at 18:35

Tomasz Juszczak

2,276
15
25

asked Jan 07 '17 at 17:36

manuel

`@"(?i)\b"+part+@"\b"` ? – TessellatingHeckler Jan 07 '17 at 17:42
The duplicate question covers the fundamental mistake in your code. As a side-effect it might also start to work immediately, but that's impossible to predict because you did not say what inputs you have been using with your function. – Tomalak Jan 07 '17 at 17:43
Thanks TessellatingHeckler that did the trick. – manuel Jan 07 '17 at 17:45
No, it didn't, it works by accident, it will break again. You need to follow the steps in the other answer. – Tomalak Jan 07 '17 at 17:49
i dont understand why would i break ? i tryed 7 different inputs and they all work. – manuel Jan 07 '17 at 18:12

Using a var in regex

0 Answers0