Method compare_eq

Tools/EditorFramework/pugixml.cpp:8153–8244

	template<class Comp>
	static bool compare_eq(
		xpath_ast_node* lhs,
		xpath_ast_node* rhs,
		const xpath_context& c,
		const xpath_stack& stack,
		const Comp& comp)
	{
		xpath_value_type lt = lhs->rettype(), rt = rhs->rettype();

		if (lt != xpath_type_node_set && rt != xpath_type_node_set)
		{
			if (lt == xpath_type_boolean || rt == xpath_type_boolean)
				return comp(lhs->eval_boolean(c, stack), rhs->eval_boolean(c, stack));
			else if (lt == xpath_type_number || rt == xpath_type_number)
				return comp(lhs->eval_number(c, stack), rhs->eval_number(c, stack));
			else if (lt == xpath_type_string || rt == xpath_type_string)
			{
				xpath_allocator_capture cr(stack.result);

				xpath_string ls = lhs->eval_string(c, stack);
				xpath_string rs = rhs->eval_string(c, stack);

				return comp(ls, rs);
			}
		}
		else if (lt == xpath_type_node_set && rt == xpath_type_node_set)
		{
			xpath_allocator_capture cr(stack.result);

			xpath_node_set_raw ls = lhs->eval_node_set(c, stack);
			xpath_node_set_raw rs = rhs->eval_node_set(c, stack);

			for (const xpath_node* li = ls.begin(); li != ls.end(); ++li)
				for (const xpath_node* ri = rs.begin(); ri != rs.end(); ++ri)
				{
					xpath_allocator_capture cri(stack.result);

					if (comp(string_value(*li, stack.result), string_value(*ri, stack.result)))
						return true;
				}

			return false;
		}
		else
		{
			if (lt == xpath_type_node_set)
			{
				swap(lhs, rhs);
				swap(lt, rt);
			}

			if (lt == xpath_type_boolean)
				return comp(lhs->eval_boolean(c, stack), rhs->eval_boolean(c, stack));
			else if (lt == xpath_type_number)
			{
				xpath_allocator_capture cr(stack.result);

				double l = lhs->eval_number(c, stack);