private bool EvaluateParameterValue(CommandState state, out double paramValue)
{
var lineStream = new ParserStreamReader()
{
Line = GCodeAdd
};
var expressionParser = new GCodeExpressionParser(lineStream)
{
ParameterValues = state.ParameterValues
};
expressionParser.Parse();
if (expressionParser.IsError())
{
paramValue = 0;
return(false);
}
paramValue = expressionParser.Answer;
return(true);
}
public bool TryGetVariable(char name, CommandState state, out double val)
{
Variable var = GetVariable(name);
if (var?.Value != null)
{
val = var.Value.Value;
return(true);
}
if (var?.Parameter != null)
{
if (var.ParameterIsTerm)
{
var lineStream = new ParserStreamReader()
{
Line = var.Parameter
};
var expressionParser = new GCodeExpressionParser(lineStream)
{
ParameterValues = state.ParameterValues
};
expressionParser.Parse();
if (!expressionParser.IsError())
{
val = expressionParser.Answer;
return(true);
}
}
else if (int.TryParse(var.Parameter, out int parameterNo) && state.ParameterValues.ContainsKey(parameterNo))
{
val = state.ParameterValues[parameterNo];
return(true);
}
}
val = 0;
return(false);
}
public GCodeExpressionParser(ParserStreamReader reader) : base(reader)
{
LeftParenthesis = '[';
RightParenthesis = ']';
}
public GCodeParser(ParserStreamReader reader) : base(reader)
{
}