如何猜测.NET中没有BOM的文件的编码？ [英] How to guess the encoding of a file with no BOM in .NET?

问题描述

 使用（StreamReader reader = new StreamReader（c） ：\somefile.html，true）{
 string filetext = reader.ReadToEnd（）; 
} 
  

当文件有BOM时，这可以正常工作，我遇到麻烦的文件没有BOM ..基本上我有乱码当我指定Encoding.Unicode它工作正常，例如：

  using（StreamReader reader = new StreamReader（c：\somefile.html，Encoding.Unicode，false）{
 string filetext = reader.ReadToEnd（）; 
} 
  

所以，我需要得到文件内容变成一个字符串，那么人们通常如何处理这个问题呢？我知道没有解决方案可以在100％的时间内工作，但是我想提高我的赔率..显然有那些试图猜测的软件例如，记事本，浏览器等）在.NET框架中有一个可以为我猜测的方法吗？有人有ome代码他们想分享？

更多背景：这个问题与我的几乎相同，但是我在.NET领域。这个问题让我有一个博客列出了各种编码检测库，但没有一个是在.NET

解决方案

Libary
http://www.codeproject.com/KB/recipes/DetectEncoding.aspx

也许在stackoverflow上有用的线程

I'm using the StreamReader class in .NET like this:

using( StreamReader reader = new StreamReader( "c:\somefile.html", true ) {
    string filetext = reader.ReadToEnd();
}

This works fine when the file has a BOM. I ran into trouble with a file with no BOM .. basically I got gibberish. When I specified Encoding.Unicode it worked fine, eg:

using( StreamReader reader = new StreamReader( "c:\somefile.html", Encoding.Unicode, false ) {
    string filetext = reader.ReadToEnd();
}

So, I need to get the file contents into a string. So how do people usually handle this? I know there's no solution that will work 100% of the time, but I'd like to improve my odds .. there is obviously software out there that tries to guess (eg, notepad, browsers, etc). Is there a method in the .NET framework that will guess for me? Does anyone have some code they'd like to share?

More background: This question is pretty much the same as mine, but I'm in .NET land. That question led me to a blog listing various encoding detection libraries, but none are in .NET

解决方案

Libary http://www.codeproject.com/KB/recipes/DetectEncoding.aspx

And perhaps a useful thread on stackoverflow

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