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/*
Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef LIBDCP_XML_H
#define LIBDCP_XML_H
#include "exceptions.h"
#include <libcxml/cxml.h>
namespace dcp
{
template <class T>
boost::shared_ptr<T>
optional_type_child (cxml::Node const & node, std::string name)
{
std::list<boost::shared_ptr<cxml::Node> > n = node.node_children (name);
if (n.size() > 1) {
throw XMLError ("duplicate XML tag");
} else if (n.empty ()) {
return boost::shared_ptr<T> ();
}
return boost::shared_ptr<T> (new T (n.front ()));
}
template <class T>
boost::shared_ptr<T> type_child (boost::shared_ptr<const cxml::Node> node, std::string name) {
return boost::shared_ptr<T> (new T (node->node_child (name)));
}
template <class T>
boost::shared_ptr<T>
optional_type_child (boost::shared_ptr<const cxml::Node> node, std::string name)
{
return optional_type_child<T> (*node.get(), name);
}
template <class T>
std::list<boost::shared_ptr<T> >
type_children (cxml::Node const & node, std::string name)
{
std::list<boost::shared_ptr<cxml::Node> > n = node.node_children (name);
std::list<boost::shared_ptr<T> > r;
for (typename std::list<boost::shared_ptr<cxml::Node> >::iterator i = n.begin(); i != n.end(); ++i) {
r.push_back (boost::shared_ptr<T> (new T (*i)));
}
return r;
}
template <class T>
std::list<boost::shared_ptr<T> >
type_children (boost::shared_ptr<const cxml::Node> node, std::string name)
{
return type_children<T> (*node.get(), name);
}
template <class T>
std::list<boost::shared_ptr<T> >
type_grand_children (cxml::Node const & node, std::string name, std::string sub)
{
boost::shared_ptr<const cxml::Node> p = node.node_child (name);
return type_children<T> (p, sub);
}
template <class T>
std::list<boost::shared_ptr<T> >
type_grand_children (boost::shared_ptr<const cxml::Node> node, std::string name, std::string sub)
{
return type_grand_children<T> (*node.get(), name, sub);
}
}
#endif
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