Compare 2 string with Regex (C#)

Question

I have a correct string and then a string come anywhere. I must compare but this strings maybe not equal. Example Correct string is

SAAT:23:34

Coming string

SAAT:12:23

When I compare this strings, Answer must be true.

Patern like this

SAAT:..:..
Regex.IsMatch();

give me t string but ı dont want to this.

How can I compare two string..

Insufficient data... Why is SAAT:23:34 equal to SAAT:12:23 ? Would it be equal to SAAT:xx:yy ? Or TAAS.12.23 ? — Henk Holterman
– Henk Holterman, Commented Jan 10, 2011 at 13:55
I want to discard some character. Exaple Date and Time values not important for me. Is Other chars equal? I want to know this. — Murat
– Murat, Commented Jan 10, 2011 at 13:56
Still not enough. Add another example and we've got an IQ test. — Henk Holterman
– Henk Holterman, Commented Jan 10, 2011 at 13:57
I think he was being clever and wanted you to write something like Sit is to Stand as Walk is to ___ (Run) or something like that. Keep hitting refresh I'm sure an Ad for an IQ test will pop eventually on the right. — Andrew T Finnell
– Andrew T Finnell, Commented Jan 10, 2011 at 14:09

Andrew T Finnell · Accepted Answer · 2011-01-10 14:05:53Z

2

Based on the information you've provided and my lack of caffeine here is a solution:

    static bool IsEqual(String left, String right)
    {
        left = Regex.Replace(left, ":[0-9]*:[0-9]*", "");
        right = Regex.Replace(right, ":[0-9]*:[0-9]*", "");
        return left.Equals(right);
    }

    static void Main(string[] args)
    {
        Console.WriteLine(IsEqual("SAAT:232:34", "SAAT:12:23")); // True
        Console.WriteLine(IsEqual("PAAT:23:34", "SAAT:12:23")); // False
        Console.WriteLine(IsEqual("SAAT:23:34:HAT", "SAAT:12:23:HAT")); // True
    }

answered Jan 10, 2011 at 14:05

Andrew T Finnell

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2 Comments

Andrew T Finnell Over a year ago

@Murat No problem. I don't really like the double String replace and was working on other solutions, but if this suites your needs I think I'll move on for now. Good luck.

Murat Over a year ago

This solution is enough for me for now. Thanks again. But you have a smart solution, ı want to see it :)

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