OpenFPGA/libs/EXTERNAL/libpugixml/docs/samples/traverse_predicate.cpp

49 lines
1.3 KiB
C++

#include "pugixml.hpp"
#include <string.h>
#include <iostream>
// tag::decl[]
bool small_timeout(pugi::xml_node node)
{
return node.attribute("Timeout").as_int() < 20;
}
struct allow_remote_predicate
{
bool operator()(pugi::xml_attribute attr) const
{
return strcmp(attr.name(), "AllowRemote") == 0;
}
bool operator()(pugi::xml_node node) const
{
return node.attribute("AllowRemote").as_bool();
}
};
// end::decl[]
int main()
{
pugi::xml_document doc;
if (!doc.load_file("xgconsole.xml")) return -1;
pugi::xml_node tools = doc.child("Profile").child("Tools");
// tag::find[]
// Find child via predicate (looks for direct children only)
std::cout << tools.find_child(allow_remote_predicate()).attribute("Filename").value() << std::endl;
// Find node via predicate (looks for all descendants in depth-first order)
std::cout << doc.find_node(allow_remote_predicate()).attribute("Filename").value() << std::endl;
// Find attribute via predicate
std::cout << tools.last_child().find_attribute(allow_remote_predicate()).value() << std::endl;
// We can use simple functions instead of function objects
std::cout << tools.find_child(small_timeout).attribute("Filename").value() << std::endl;
// end::find[]
}
// vim:et