How to determine if a File Matches a File Mask?

Question

I need to decide whether file name fits to file mask. The file mask could contain * or ? characters. Is there any simple solution for this?

bool bFits = Fits         


        

Answer 1

For .net Core the way microsoft does.

        private bool MatchPattern(ReadOnlySpan<char> relativePath)
        {
            ReadOnlySpan<char> name = IO.Path.GetFileName(relativePath);
            if (name.Length == 0)
                return false;

            if (Filters.Count == 0)
                return true;

            foreach (string filter in Filters)
            {
                if (FileSystemName.MatchesSimpleExpression(filter, name, ignoreCase: !PathInternal.IsCaseSensitive))
                    return true;
            }

            return false;
        }

The way microsoft itself seemed to do for .NET 4.6 is documented in github:

    private bool MatchPattern(string relativePath) {            
        string name = System.IO.Path.GetFileName(relativePath);            
        if (name != null)
            return PatternMatcher.StrictMatchPattern(filter.ToUpper(CultureInfo.InvariantCulture), name.ToUpper(CultureInfo.InvariantCulture));
        else
            return false;                
    }