I'm iterating over an XML document using boost property tree and storing the results in a struct. The issue I have is that I can only get to the first "item" nodes and can't access the second "item" nodes. I was hoping someone would point out where I've made a mistake.
My program output looks like this (you can see items are missing.. there is no cookie2, candy2 or chocolate2 items shown):
jar : snAcks
snack : coOkie
item : cooKie1
snack : canDy
item : caNdy1
snack : cHocolate
item : choColate1
Here's the xml file:
<root>
<jar name="snAcks">
<snack name="coOkie">
<item name="cooKie1"></item>
<item name="cookIe2"></item>
</snack>
<snack name="canDy">
<item name="caNdy1"></item>
<item name="candY2"></item>
</snack>
<snack name="cHocolate">
<item name="choColate1"></item>
<item name="chocOlate2"></item>
</snack>
</jar>
</root>
Here's the source code:
void parse_xml( boost::property_tree::iptree const& pt )
{
BOOST_FOREACH( boost::property_tree::iptree::value_type const& v, pt.get_child("root.jar") )
{
// Show jar
if ( boost::iequals( v.first, "<xmlattr>" ) )
{
std::cout << "jar : " << v.second.get<std::string>("NaME") << std::endl;
}
if ( boost::iequals( v.first, "snack" ) )
{
// Show snack
std::cout << "snack : " << v.second.get<std::string>("<xmlattr>.name") << std::endl;
try
{
BOOST_FOREACH( boost::property_tree::iptree::value_type const& val, v.second.get_child("item") )
{
if ( boost::iequals( val.first, "<xmlattr>" ) ) {
// Show item
std::cout << "item : " << val.second.get<std::string>("nAmE") << std::endl;
}
}
}
catch (boost::property_tree::ptree_bad_path& e)
{
// Show what caused exception
std::cout << "Exception: " << e.what() << std::endl;
}
}
}
}
Thank you for taking time to read this. I think I've made a simple mistake, but cannot understand where.
I figured it out, but this is not what i would call an intuitive xml-parser library.
void parse_xml( boost::property_tree::iptree const& pt )
{
BOOST_FOREACH(boost::property_tree::iptree::value_type const& v, pt.get_child("root.jar"))
{
// Show jar
if ( boost::iequals( v.first, "<xmlattr>" ) ) {
std::cout << "jar : " << v.second.get<std::string>("NaME") << std::endl;
}
if ( boost::iequals( v.first, "snack" ) )
{
BOOST_FOREACH(boost::property_tree::iptree::value_type const& val, v.second)
{
// Show snack
if ( boost::iequals( val.first, "<xmlattr>" ) ) {
std::cout << "snack : " << val.second.get<std::string>("name") << std::endl;
}
if ( boost::iequals(val.first, "item") )
{
BOOST_FOREACH(boost::property_tree::iptree::value_type const& val2, val.second)
if ( boost::iequals( val2.first, "<xmlattr>" ) ) {
// Show item
std::cout << "item : " << val2.second.get<std::string>("nAmE") << std::endl;
}
}
}
}
}
}
If you compare the two code snippets you can see that mine is bit more regularly structured.
<xmlattr>
node