PKHeX/PKHeX.Core/Util/PathUtil.cs

using System.IO;

namespace PKHeX.Core;

public static partial class Util
{
    /// <summary>
    /// Cleans the local <see cref="fileName"/> by removing any invalid filename characters.
    /// </summary>
    /// <returns>New string without any invalid characters.</returns>
    public static string CleanFileName(string fileName)
    {
        return string.Concat(fileName.Split(Path.GetInvalidFileNameChars()));
    }
}