/// <summary>
/// Automatically detects the Encoding type of a given byte buffer.
/// </summary>
/// <param name="buffer">The byte buffer.</param>
/// <param name="size">The size of the byte buffer.</param>
/// <returns>The Encoding type or Encoding.None if unknown.</returns>
public TextEncode DetectWithoutBom(byte[] buffer, int size)
{
// Now check for valid UTF8
TextEncode encoding = CheckUtf8(buffer, size);
if (encoding != TextEncode.None)
{
return(encoding);
}
// ANSI or None (binary) then 一个零都没有情况。
if (!ContainsZero(buffer, size))
{
CheckChinese(buffer, size);
return(TextEncode.Ansi);
}
// Now try UTF16 按寻找换行字符先进行判断
encoding = CheckByNewLineChar(buffer, size);
if (encoding != TextEncode.None)
{
return(encoding);
}
// 没办法了，只能按0出现的次数比率，做大体的预判
encoding = CheckByZeroNumPercent(buffer, size);
if (encoding != TextEncode.None)
{
return(encoding);
}
// Found a null, return based on the preference in null_suggests_binary_
return(TextEncode.None);
}
private void btBat_Click(object sender, EventArgs e)
{
lab.Text = "";
labCur.Text = "";
Application.DoEvents();
var bat = _batches[tComboBox.SelectedIndex];
EnumFiles(tbDir.Text, tbPattern.Text, file =>
{
labCur.Text = file;
var textEnc = new TextEncode();
string content = textEnc.ReadText(file);
string result = bat.ReplaceBat(content);
if (content != result)
{
textEnc.WriteBySameEncoding(file, result);
lab.AppendText(file + "\r\n");
}
Application.DoEvents();
});
labCur.Text = "";
lab.AppendText("Done!");
}
public virtual String ProvideString(byte[] bytArr, int nIndex, int nCount)
{
return(TextEncode.GetString(bytArr, nIndex, nCount));
}
public byte[] ProvideBytes(String str)
{
return(TextEncode.GetBytes(str));
}
