我需要一个强大的和简单的方法来删除非法的路径和文件字符从一个简单的字符串。我已经使用了下面的代码,但它似乎没有做任何事情,我错过了什么?
using System;
using System.IO;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string illegal = "\"M<>\"\\a/ry/ h**ad:>> a\\/:*?\"<>| li*tt|le|| la\"mb.?";
illegal = illegal.Trim(Path.GetInvalidFileNameChars());
illegal = illegal.Trim(Path.GetInvalidPathChars());
Console.WriteLine(illegal);
Console.ReadLine();
}
}
}
下面的代码片段应该对。net 3及更高版本有所帮助。
using System.IO;
using System.Text.RegularExpressions;
public static class PathValidation
{
private static string pathValidatorExpression = "^[^" + string.Join("", Array.ConvertAll(Path.GetInvalidPathChars(), x => Regex.Escape(x.ToString()))) + "]+$";
private static Regex pathValidator = new Regex(pathValidatorExpression, RegexOptions.Compiled);
private static string fileNameValidatorExpression = "^[^" + string.Join("", Array.ConvertAll(Path.GetInvalidFileNameChars(), x => Regex.Escape(x.ToString()))) + "]+$";
private static Regex fileNameValidator = new Regex(fileNameValidatorExpression, RegexOptions.Compiled);
private static string pathCleanerExpression = "[" + string.Join("", Array.ConvertAll(Path.GetInvalidPathChars(), x => Regex.Escape(x.ToString()))) + "]";
private static Regex pathCleaner = new Regex(pathCleanerExpression, RegexOptions.Compiled);
private static string fileNameCleanerExpression = "[" + string.Join("", Array.ConvertAll(Path.GetInvalidFileNameChars(), x => Regex.Escape(x.ToString()))) + "]";
private static Regex fileNameCleaner = new Regex(fileNameCleanerExpression, RegexOptions.Compiled);
public static bool ValidatePath(string path)
{
return pathValidator.IsMatch(path);
}
public static bool ValidateFileName(string fileName)
{
return fileNameValidator.IsMatch(fileName);
}
public static string CleanPath(string path)
{
return pathCleaner.Replace(path, "");
}
public static string CleanFileName(string fileName)
{
return fileNameCleaner.Replace(fileName, "");
}
}
我认为这个问题还没有完全回答……
答案只描述干净的文件名或路径…不是两个。以下是我的解决方案:
private static string CleanPath(string path)
{
string regexSearch = new string(Path.GetInvalidFileNameChars()) + new string(Path.GetInvalidPathChars());
Regex r = new Regex(string.Format("[{0}]", Regex.Escape(regexSearch)));
List<string> split = path.Split('\\').ToList();
string returnValue = split.Aggregate(string.Empty, (current, s) => current + (r.Replace(s, "") + @"\"));
returnValue = returnValue.TrimEnd('\\');
return returnValue;
}