C# string matching with wildcards

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C# how to achive string matching with wildcards?Wildcards there are two marks, question and asterisks. "?" Represents an arbitrary character, and "*" indicates that any arbitrary character.How to achive this function by use C#.Thank you.

Posted 12-Sep-12 6:08am

pucx

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Kenneth Haugland 12-Sep-12 12:15pm

For that I would use Regular Expressions.

[no name] 12-Sep-12 12:16pm

Yep sounds like a regular expression to me too.

3 solutions

Solution 1

Learn regexp:

The 30 Minute Regex Tutorial[^]

Now do some string replacement on regex like * with w+ etc

Posted 12-Sep-12 6:36am

Kuthuparakkal

Solution 3

try below code

C#

public static class WildcardMatch
{
    #region Public Methods
    public static bool IsLike(string pattern, string text, bool caseSensitive=false)
    {
        pattern = pattern.Replace(".", @"\.");
        pattern = pattern.Replace("?", ".");
        pattern = pattern.Replace("*", ".*?");
        pattern = pattern.Replace(@"\", @"\\");
        pattern = pattern.Replace(" ", @"\s");
        return new Regex(pattern, caseSensitive ? RegexOptions.None : RegexOptions.IgnoreCase).IsMatch(text);
    }
    #endregion
}

Posted 14-Sep-13 21:12pm

RikinPatel

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Andreas Gieriet 15-Sep-13 7:18am

This is not robust. Use Regex.Escape to do the proper transformation.
Cheers
Andi

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Clifford Nelson · Accepted Answer · 2012-09-12T08:57:00

Solution 2

Look at the following tip (do not consider it an article, although so classified): Converting Wildcards to Regexes[^]

Posted 12-Sep-12 8:57am

Clifford Nelson

Comments

Sergey Alexandrovich Kryukov 12-Sep-12 20:28pm

Interesting article, to the matter of this question. Hope it also works... :-)
Well, my 5.
--SA