/// <summary>
/// - Processes a character event into an Action that occurs while in the CsiEntry state.
/// Events in this state will:
/// 1. Execute C0 control characters
/// 2. Ignore Delete characters
/// 3. Collect Intermediate characters
/// 4. Begin to ignore all remaining parameters when an invalid character is detected (CsiIgnore)
/// 5. Store parameter data
/// 6. Collect Control Sequence Private markers
/// 7. Dispatch a control sequence with parameters for action
/// </summary>
/// <param name="ch"></param>
private void EventCSIEntry(byte ch)
{
if (ASCIIChars.IsC0Code(ch))
{
this.ActionExecute(ch);
}
else if (ASCIIChars.IsDelete(ch))
{
this.ActionIgnore(ch);
}
else if (ASCIIChars.IsIntermediate(ch))
{
this.ActionCollect(ch);
this.EnterCSIIntermediate();
}
else if (ASCIIChars.IsCSIInvalid(ch))
{
this.EnterCSIIgnore();
}
else if (ASCIIChars.IsNumericParamValue(ch) || ASCIIChars.IsParameterDelimiter(ch))
{
this.ActionParam(ch);
this.EnterCSIParam();
}
else if (ASCIIChars.IsCSIPrivateMarker(ch))
{
this.ActionCollect(ch);
this.EnterCSIParam();
}
else
{
this.ActionCSIDispatch(ch);
this.EnterGround();
}
}
/// <summary>
/// - Processes a character event into an Action that occurs while in the DcsParam state.
/// Events in this state will:
/// 1. Ignore C0 control characters
/// 2. Ignore Delete characters
/// 3. Collect DCS parameter data
/// 4. Enter DcsIntermediate if we see an intermediate
/// 5. Begin to ignore all remaining parameters when an invalid character is detected (DcsIgnore)
/// 6. Dispatch the Final character in preparation for parsing the data string
/// </summary>
/// <param name="ch"></param>
private void EventDCSParam(byte ch)
{
if (ASCIIChars.IsC0Code(ch))
{
this.ActionIgnore(ch);
}
else if (ASCIIChars.IsDelete(ch))
{
this.ActionIgnore(ch);
}
else if (ASCIIChars.IsNumericParamValue(ch) || ASCIIChars.IsParameterDelimiter(ch))
{
this.ActionParam(ch);
}
else if (ASCIIChars.IsIntermediate(ch))
{
this.ActionCollect(ch);
this.EnterDCSIntermediate();
}
else if (ASCIIChars.IsParameterInvalid(ch))
{
this.EnterDCSIgnore();
}
else
{
this.ActionDCSDispatch(ch);
}
}
/// <summary>
/// 进入到了OSC状态，开始解析OSC命令
/// </summary>
/// <param name="ch"></param>
private void EventOSCParam(byte ch)
{
if (ASCIIChars.IsOSCTerminator(ch))
{
// OSC状态下出现了BEL结束符
// 参考terminal的做法，进入Ground状态
this.EnterGround();
}
else if (ASCIIChars.IsNumericParamValue(ch))
{
// OSC状态下的数字，收集起来
this.ActionOSCParam(ch);
}
else if (ASCIIChars.IsOSCDelimiter(ch))
{
// OSC状态下出现了分隔符，说明要开始收集字符串了
this.EnterOSCString();
}
else
{
// 其他所有的字符都忽略
this.ActionIgnore(ch);
}
}
