//인코딩 확인
public static Encoding GetFileEncoding(string srcFile)
{
// *** Use Default of Encoding.Default (Ansi CodePage)
Encoding enc = Encoding.Default;
// *** Detect byte order mark if any - otherwise assume default
byte[] buffer = new byte[10];
FileStream file = new FileStream(srcFile, FileMode.Open, FileAccess.Read, FileShare.Read);
file.Read(buffer, 0, 10);
file.Close();
if (buffer[0] == 0xef && buffer[1] == 0xbb && buffer[2] == 0xbf)
enc = Encoding.UTF8; //with BOM
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;
else if (buffer[0] == 0xFE && buffer[1] == 0xFF)
// 1201 unicodeFFFE Unicode (Big-Endian)
enc = Encoding.GetEncoding(1201);
else if (buffer[0] == 0xFF && buffer[1] == 0xFE)
// 1200 utf-16 Unicode
enc = Encoding.GetEncoding(1200);
else if (ValidateUTF8WithoutBOM(srcFile))
enc = new UTF8Encoding(false);
return enc;
}
private static bool ValidateUTF8WithoutBOM(string filePath)
{
//ansi로 인코딩 된 파일을 utf-8을 사용하여 읽으면 각 기본 언어마다 특수문자가 포함되는 것같다.
//euc-kr 에서 utf-8로 읽으면 "� = (char)0xfffd)"가 생기는 것 같다.
using (FileStream fs = File.Open(filePath, FileMode.Open, FileAccess.Read))
using (BufferedStream bs = new BufferedStream(fs))
using (StreamReader sr = new StreamReader(bs))
{
if (fs.Length < 1024 * 1000)
{
if (sr.ReadToEnd().Contains((char)0xfffd))
return false;
else
return true;
}
string s;
while ((s = sr.ReadLine()) != null)
{
if (s.Contains((char)0xfffd))
return false;
}
}
return true;
}
//파일 읽기
public static string ReadText(string filePath)
{
StringBuilder sb = new StringBuilder();
using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
using (StreamReader sr = new StreamReader(fs, GetFileEncoding(filePath), true))
{
string line;
while ((line = sr.ReadLine()) != null)
{
sb.AppendLine(line);
}
}
return sb.ToString();
}
}
//파일 쓰기
public static void WriteText(string filePath, string strData)
{
DirectoryInfo di = new DirectoryInfo(Path.GetDirectoryName(filePath));
if (di.Exists == false) //If New Folder not exits
{
di.Create(); //create Folder
}
using (FileStream fs = new FileStream(filePath, FileMode.Create, FileAccess.Write))
{
using (StreamWriter sw = new StreamWriter(fs, new UTF8Encoding(false)))
{
sw.WriteLine(strData.TrimEnd());
}
}
}
