Function xpath_string string_value

lib/pugixml/src/pugixml.cpp:7967–8019

	}

	PUGI__FN xpath_string string_value(const xpath_node& na, xpath_allocator* alloc)
	{
		if (na.attribute())
			return xpath_string::from_const(na.attribute().value());
		else
		{
			xml_node n = na.node();

			switch (n.type())
			{
			case node_pcdata:
			case node_cdata:
			case node_comment:
			case node_pi:
				return xpath_string::from_const(n.value());

			case node_document:
			case node_element:
			{
				xpath_string result;

				// element nodes can have value if parse_embed_pcdata was used
				if (n.value()[0])
					result.append(xpath_string::from_const(n.value()), alloc);

				xml_node cur = n.first_child();

				while (cur && cur != n)
				{
					if (cur.type() == node_pcdata || cur.type() == node_cdata)
						result.append(xpath_string::from_const(cur.value()), alloc);

					if (cur.first_child())
						cur = cur.first_child();
					else if (cur.next_sibling())
						cur = cur.next_sibling();
					else
					{
						while (!cur.next_sibling() && cur != n)
							cur = cur.parent();

						if (cur != n) cur = cur.next_sibling();
					}
				}

				return result;
			}

			default:
				return xpath_string();
			}
		}
	}

	PUGI__FN bool node_is_before_sibling(xml_node_struct* ln, xml_node_struct* rn)
	{