/// <summary>
/// 从一串字符中解析出CSI的parameter，intermediate，final数据
/// </summary>
/// <param name="bytes">要解析的bytes</param>
/// <param name="parameter"></param>
/// <param name="intermediate"></param>
/// <param name="final"></param>
/// <returns></returns>
public static bool ParseCSI(byte[] chars, out ParameterBytes parameter, out IntermediateBytes intermediate, out FinalByte final)
{
final.PrivateUse = false;
final.Char = 0;
final.WithIntermediateByte0200 = false;
bool isCsiStart = false;
bool is7BitAscii = true;
int length = chars.Length;
List <byte> pBytes = new List <byte>(); // parameterBytes
List <byte> iBytes = new List <byte>(); // intermediateBytes
for (int idx = 0; idx < length; idx++)
{
byte c = chars[idx];
if (isCsiStart)
{
if (ParameterBytes.IsParameterByte(c))
{
pBytes.Add(c);
}
if (IntermediateBytes.IsIntermediateByte(c))
{
iBytes.Add(c);
}
if (FinalByte.IsFinalByte(c, out final.PrivateUse, out final.WithIntermediateByte0200))
{
return(true);
}
}
else
{
if (c == Fe.CSI_8BIT)
{
is7BitAscii = false;
isCsiStart = true;
continue;
}
if (c != ControlFunctions.ESC)
{
continue;
}
if (chars[idx + 1] == Fe.CSI_7BIT)
{
isCsiStart = true;
}
}
}
return(false);
}
public override bool Parse(byte[] chars, int offset, out ControlFunctionParserResult result, out int funcEndIdx)
{
result.FeChar = 0;
result.FunctionContent = null;
result.ControlFunction = 0;
funcEndIdx = 0;
int length = chars.Length;
byte fe = chars[offset + 1];
if (!Fe.Is7bitFe(fe))
{
return(false);
}
if (fe == Fe.CSI_7BIT)
{
#region 解析CSI命令
if (fe == Fe.CSI_7BIT)
{
int charsSize = 0;
bool privateUse = false;
bool withIntermediateByte0200 = false;
for (int idx = offset + 1; idx < length; idx++)
{
charsSize++;
if (FinalByte.IsFinalByte(chars[idx], out privateUse, out withIntermediateByte0200))
{
result.FeChar = fe;
result.FunctionContent = new byte[charsSize];
Array.Copy(chars, offset + 1, result.FunctionContent, 0, result.FunctionContent.Length);
funcEndIdx = idx;
return(true);
}
}
}
#endregion
}
else if (fe == Fe.OSC_7BIT)
{
#region 解析OSC命令
int charsSize = 0;
for (int idx = offset + 1; idx < length; idx++)
{
charsSize++;
if (OSC.IsTerminatedChar(chars[idx]))
{
result.FeChar = fe;
result.FunctionContent = new byte[charsSize];
Array.Copy(chars, offset + 1, result.FunctionContent, 0, result.FunctionContent.Length);
funcEndIdx = idx;
return(true);
}
}
#endregion
}
logger.ErrorFormat("解析7位编码Fe'{0}'失败", fe);
return(false);
}
