private static bool DoString(ref StateContext context, int position)
{
if (context.Flags.IsEscaping())
{
context.Accept(Escape(context.Character));
context.Flags.IsEscaping(false);
}
else
{
if (context.Character == '\\')
{
context.Flags.IsEscaping(true);
}
else if (context.Character == context.Flags.GetStringQuote())
{
context.State = State.Parameter;
context.AppendParameterConstant(context.Stack.Peek());
}
else
{
context.Accept();
}
}
return(true);
}
private static bool DoNumber(ref StateContext context, int position)
{
switch (context.Character)
{
case ',':
var ownerState = context.GetOwnerState();
if (ownerState != State.Indexer && ownerState != State.Method)
{
context.OnError(EXCEPTION_UNKNOWN_MESSAGE);
return(false);
}
context.State = ownerState;
context.AppendParameterConstant(context.Stack.Peek());
break;
case ']':
if (context.GetOwnerState() != State.Indexer)
{
context.OnError(GetIllegalCharacterExceptionMessage(context.Character, position));
return(false);
}
context.AppendParameterConstant(context.Stack.Pop());
context.ResetState();
break;
case ')':
if (context.GetOwnerState() != State.Method)
{
context.OnError(GetIllegalCharacterExceptionMessage(context.Character, position));
return(false);
}
context.AppendParameterConstant(context.Stack.Pop());
context.ResetState();
break;
case '.':
var numberType = context.Flags.GetConstantType();
if (numberType == TypeCode.Double || numberType == TypeCode.Single || numberType == TypeCode.Decimal)
{
context.OnError(GetIllegalCharacterExceptionMessage(context.Character, position));
return(false);
}
context.Flags.SetConstantType(TypeCode.Double);
context.Accept();
break;
case 'L':
context.State = State.Parameter;
context.Flags.SetConstantType(TypeCode.Int64);
context.AppendParameterConstant(context.Stack.Peek());
break;
case 'f':
case 'F':
context.State = State.Parameter;
context.Flags.SetConstantType(TypeCode.Single);
context.AppendParameterConstant(context.Stack.Peek());
break;
case 'm':
case 'M':
context.State = State.Parameter;
context.Flags.SetConstantType(TypeCode.Decimal);
context.AppendParameterConstant(context.Stack.Peek());
break;
default:
if (context.Character >= '0' && context.Character <= '9')
{
context.Accept();
}
else if (context.IsWhitespace())
{
context.State = State.Parameter;
context.AppendParameterConstant(context.Stack.Peek());
}
else
{
context.OnError(GetIllegalCharacterExceptionMessage(context.Character, position));
return(false);
}
break;
}
return(true);
}
