public static bool TryScan(string line, out Command scanned)
{
scanned = null;
line = line.Trim().TrimEnd(';');
if (Regex.IsMatch(line, RegExWholeLine(AssignmentCommand.RegEx)))
{
if (AssignmentCommand.TryScan(CodeReader.FromText(line), out AssignmentCommand cmd))
{
scanned = cmd;
return(true);
}
}
if (Regex.IsMatch(line, RegExWholeLine(EnumCommand.RegEx)) ||
Regex.IsMatch(line, RegExWholeLine(GetPropertyCommand.RegEx)))
{
string firstPart = line.Split('.')[0];
string secondPart = line.Split('.')[1];
Type enumType = Assembly.GetAssembly(typeof(NoneType)).GetTypes().FirstOrDefault(t => t.Name == firstPart);
if (enumType != null)
{
scanned = new EnumCommand(enumType, secondPart);
return(true);
}
else
{
scanned = new GetPropertyCommand(firstPart, secondPart);
return(true);
}
}
if (Regex.IsMatch(line, RegExWholeLine(SetPropertyCommand.RegEx)))
{
string obj = line.Split('.')[0];
string property = line.Split('.', ':')[1];
string value = line.Substring(line.IndexOf(property) + property.Length + 1);
if (TryScan(value, out Command cmd))
{
scanned = new SetPropertyCommand(obj, property, cmd);
return(true);
}
}
if (Regex.IsMatch(line, RegExWholeLine(ConstructorCommand.RegEx)))
{
string type = line.Split(' ', '(')[1];
if (TryScan(line.Substring(line.IndexOf(type) + type.Length), out Command cmd))
{
var t = Assembly.GetAssembly(typeof(NoneType)).GetTypes().FirstOrDefault(ty => ty.Name == type);
scanned = new ConstructorCommand(t, (ParameterCommand)cmd);
return(true);
}
}
if (Regex.IsMatch(line, RegExWholeLine(ParameterCommand.RegEx)))
{
List <Command> parameters = new List <Command>();
foreach (var parameter in line.RemoveBrackets().Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
{
if (TryScan(parameter.Trim(), out Command cmd))
{
parameters.Add(cmd);
}
else
{
throw new Exception("Some Error occured while passing parameters.");
}
}
scanned = new ParameterCommand(parameters.ToArray());
return(true);
}
if (Regex.IsMatch(line, Command.RegExWholeLine(OperationalCommand.Regex)))
{
for (int i = 0; i < line.Length; i++)
{
switch (line[i])
{
case '+':
{
if (TryScan(line.Remove(i), out Command left) && TryScan(line.Substring(i + 1), out Command right))
{
scanned = new OperationalCommand(Operation.Plus, left, right);
return(true);
}
break;
}
case '-':
{
if (TryScan(line.Remove(i), out Command left) && TryScan(line.Substring(i + 1), out Command right))
{
scanned = new OperationalCommand(Operation.Minus, left, right);
return(true);
}
break;
}
case '*':
{
if (TryScan(line.Remove(i), out Command left) && TryScan(line.Substring(i + 1), out Command right))
{
scanned = new OperationalCommand(Operation.Multiply, left, right);
return(true);
}
break;
}
case '/':
{
if (TryScan(line.Remove(i), out Command left) && TryScan(line.Substring(i + 1), out Command right))
{
scanned = new OperationalCommand(Operation.Divide, left, right);
return(true);
}
break;
}
case '%':
{
if (TryScan(line.Remove(i), out Command left) && TryScan(line.Substring(i + 1), out Command right))
{
scanned = new OperationalCommand(Operation.Modulo, left, right);
return(true);
}
break;
}
case '^':
{
if (TryScan(line.Remove(i), out Command left) && TryScan(line.Substring(i + 1), out Command right))
{
scanned = new OperationalCommand(Operation.Pow, left, right);
return(true);
}
break;
}
default:
break;
}
}
}
if (Regex.IsMatch(line, RegExWholeLine(FunctionCallCommand.RegEx)))
{
string obj = line.Split('.')[0];
string method = line.Split('.', '(')[1];
string parameters = line.Substring(line.IndexOf(method) + method.Length);
if (Command.TryScan(parameters, out Command cmd))
{
scanned = new FunctionCallCommand(obj, method, (ParameterCommand)cmd);
return(true);
}
}
if (Regex.IsMatch(line, RegExWholeLine(StyleCommand.RegEx)))
{
if (StyleValue.TryScan(line, out StyleValue styleValue))
{
scanned = new StyleCommand(styleValue);
return(true);
}
}
if (Regex.IsMatch(line, RegExWholeLine(StaticFunctionCallCommand.RegEx)))
{
if (StaticFunctionCallCommand.TryScan(line, out StaticFunctionCallCommand cmd))
{
scanned = cmd;
return(true);
}
}
if (Regex.IsMatch(line, RegExWholeLine(ValueCommand.RegEx)))
{
scanned = new ValueCommand(line);
return(true);
}
if (Regex.IsMatch(line, RegExWholeLine(CreateArrayCommand.RegEx)))
{
line = line.Trim('[', ']');
if (int.TryParse(line, out int length))
{
scanned = new CreateArrayCommand(length);
return(true);
}
}
if (Regex.IsMatch(line, RegExWholeLine(RegExHelper.Variable)))
{
scanned = new VariableCommand(line);
return(true);
}
return(false);
}