internal void Complete()
{
if (_nodeStack.Count != 0)
{
StackNode data = (StackNode)_nodeStack.Pop();
throw ParserException.ParenNotMatch(data.charPushed);
}
_nodeStack = null;
// fix null
if (_root.Expression == null)
{
if (_root.OperandCount == 0)
{
_root = null;
}
else if (_root.OperandCount > 1)
{
throw ParserException.InternalError();
}
else
{
_root = (ExprNode)_root.Operands[0];
_root._parent = null;
}
}
}
internal void Pop(char ch)
{
_isStart = false;
if (_nodeStack.Count == 0)
{
if (ch == ',')
{
throw ParserException.NoParenBefore("'( or ']'");
}
else
{
throw ParserException.NoParenBefore(ch.ToString());
}
}
StackNode data = (StackNode)_nodeStack.Pop();
if (ch != ',' && data.charPushed != ',')
{
if (ch != data.charPushed)
{
throw ParserException.ParenNotMatch(ch);
}
}
if (this._root.Expression == null)
{
if (this._root.OperandCount > 0)
{
foreach (ExprNode node in this._root.Operands)
{
node._parent = data.top;
}
data.top.Operands.AddRange(this._root.Operands);
}
}
else
{
data.top.Add(this._root);
}
this._root = data.root;
this._top = data.top;
}