docs/samples/xpath_error.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

#include "pugixml.hpp"

#include <iostream>

int main()
{
	pugi::xml_document doc;
	if (!doc.load_file("xgconsole.xml")) return -1;

//[code_xpath_errors
	// Exception is thrown for incorrect query syntax
	try
	{
		doc.select_nodes("//nodes[#true()]");
	}
	catch (const pugi::xpath_exception& e)
	{
		std::cout << "Select failed: " << e.what() << std::endl;
	}

	// Exception is thrown for incorrect query semantics
	try
	{
		doc.select_nodes("(123)/next");
	}
	catch (const pugi::xpath_exception& e)
	{
		std::cout << "Select failed: " << e.what() << std::endl;
	}

	// Exception is thrown for query with incorrect return type
	try
	{
		doc.select_nodes("123");
	}
	catch (const pugi::xpath_exception& e)
	{
		std::cout << "Select failed: " << e.what() << std::endl;
	}
//]
}