using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace B2UBatchConverter
{
class Program
{
public class AnalyzeResult
{
public string Content;
public Encoding Encoding;
}
//REF：http://goo.gl/jAJgIr by Rick Strahl
public static AnalyzeResult AnalyzeFile(string srcFile)
{
//預設為Big5
Encoding enc = Encoding.GetEncoding(950);
//由前五碼識別出UTF8、Unicode、UTF32等編碼，其餘則視為
byte[] buffer = new byte[5];
using (FileStream file = new FileStream(srcFile, FileMode.Open))
{
file.Read(buffer, 0, 5);
file.Close();
if (buffer[0] == 0xef && buffer[1] == 0xbb && buffer[2] == 0xbf)
enc = Encoding.UTF8;
else if (buffer[0] == 0xfe && buffer[1] == 0xff)
enc = Encoding.Unicode;
else if (buffer[0] == 0 && buffer[1] == 0 &&
buffer[2] == 0xfe && buffer[3] == 0xff)
enc = Encoding.UTF32;
else if (buffer[0] == 0x2b && buffer[1] == 0x2f && buffer[2] == 0x76)
enc = Encoding.UTF7;
}
//使用指定的Encoding讀取內容
return new AnalyzeResult()
{
Content = File.ReadAllText(srcFile, enc),
Encoding = enc
};
}
static void Main(string[] args)
{
//args = new string[] { "D:\\Lab\\L805\\ConApp" };
string path = args[0];
//列舉要搜尋轉碼的副檔名
var scanFileTypes = "cs,js".Split(',');
//略過不處理的資料夾名稱
var skipFolders = "bin,obj".Split(',');
foreach (var file in
//列舉所有子目錄下的檔案
Directory.GetFiles(path, "*.*", SearchOption.AllDirectories))
{
//取得副檔名
var ext = Path.GetExtension(file).TrimStart('.').ToLower();
//若非預先指定的副檔名就略過不處理
if (!scanFileTypes.Contains(ext)) continue;
//處於\bin\* \obj\*目錄下的檔案也一律略過
if (skipFolders.Any(o => file.Contains(
Path.DirectorySeparatorChar + o + Path.DirectorySeparatorChar)))
continue;
//讀取檔案內容並識別編碼
var analysis = AnalyzeFile(file);
if (analysis.Encoding.CodePage == 950) //BIG5編號檔案才要處理
{
Console.Write("Process File {0}...", file);
//將原檔更名為*.big5.bak
var bakFile = file + ".big5.bak";
if (File.Exists(bakFile)) File.Delete(bakFile);
File.Move(file, bakFile);
//重新以UTF8寫入
File.WriteAllText(file, analysis.Content, Encoding.UTF8);
Console.WriteLine(" done!");
}
else
{
Console.WriteLine("Skip File {0} / {1}", file,
analysis.Encoding.EncodingName);
}
}
}
}
}