std::string Engine::getAttribute( const pugi::xml_document& cfg,
const std::string xpath ) {
const pugi::xpath_node xpnode = cfg.select_single_node(xpath.c_str()) ;
DLOG(INFO) << xpath << " " << xpnode.attribute().name() << " "
<< xpnode.attribute().value() << std::endl ;
std::string ret(xpnode.attribute().value());
if( ret.size( ) == 0 ) {
throw StatMissingException( "xpath [" + xpath + "] returns no value." ) ;
}
return ret ;
}
void XMLFile::PatchRemove(const pugi::xpath_node& original) const
{
// If no attribute but node then its a node, otherwise its an attribute or null
if (!original.attribute() && original.node())
{
pugi::xml_node parent = original.parent();
parent.remove_child(original.node());
}
else if (original.attribute())
{
pugi::xml_node parent = original.parent();
parent.remove_attribute(original.attribute());
}
}
void XMLFile::PatchReplace(const pugi::xml_node& patch, pugi::xpath_node& original) const
{
// If no attribute but node then its a node, otherwise its an attribute or null
if (!original.attribute() && original.node())
{
pugi::xml_node parent = original.node().parent();
parent.insert_copy_before(patch.first_child(), original.node());
parent.remove_child(original.node());
}
else if (original.attribute())
{
original.attribute().set_value(patch.child_value());
}
}
void XMLFile::PatchAdd(const pugi::xml_node& patch, pugi::xpath_node& original) const
{
// If not a node, log an error
if (original.attribute())
{
URHO3D_LOGERRORF("XML Patch failed calling Add due to not selecting a node, %s attribute was selected.",
original.attribute().name());
return;
}
// If no type add node, if contains '@' treat as attribute
pugi::xml_attribute type = patch.attribute("type");
if (!type || strlen(type.value()) <= 0)
AddNode(patch, original);
else if (type.value()[0] == '@')
AddAttribute(patch, original);
}