Solved

C# String matching using wildcards

Posted on 2008-10-15
2
9,606 Views
Last Modified: 2012-05-05
Hey,

How do i implement a wildcard matching method in c# using e.g regex ?

It should work like this:
String expr1 = "*test*" meaning that its a match if "test" is anywhere in the string
String expr2 = "*test" meaning that its a match if "test" is in the end of the string
String expr3 = "test*" meaning that its a match if "test" is in the beggning of the string

Example:
String text1 = "This is a test"
String test2 = "This test is mine"
String test3 = "testing is nice"

expr1 will match test1, test2 and test3
expr2 will match text1
expr3 will match text3

Thanks
0
Comment
Question by:ravedome
2 Comments
 

Accepted Solution

by:
ravedome earned 0 total points
ID: 22719439
This can be closed, I found a solution by myself.
0
 
LVL 9

Expert Comment

by:ripahoratiu
ID: 22719470
       public static bool Match(string strWithWildCards, string myString)
        {
            if (strWithWildCards.Length==0) return myString.Length==0;
            if (myString.Length==0) return false;
            if (strWithWildCards[0] == '*' && strWithWildCards.Length > 1)
                for (int index = 0; index < myString.Length; index++)
                {
                    if (Match(strWithWildCards.Substring(1), myString.Substring(index)))
                        return true;
                }
             else if (strWithWildCards[0] == '*')
                        return true;
             else if (strWithWildCards[0] == myString[0])
                            return Match(strWithWildCards.Substring(1), myString.Substring(1));
            return false;
            }
        }
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Summary: Persistence is the capability of an application to store the state of objects and recover it when necessary. This article compares the two common types of serialization in aspects of data access, readability, and runtime cost. A ready-to…
This article introduced a TextBox that supports transparent background.   Introduction TextBox is the most widely used control component in GUI design. Most GUI controls do not support transparent background and more or less do not have the…
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question