diff --git a/contrib/foreach.hpp b/contrib/foreach.hpp new file mode 100644 index 0000000000000000000000000000000000000000..c413f1de712df9a41fc5350e3963b7443e154fbc --- /dev/null +++ b/contrib/foreach.hpp @@ -0,0 +1,102 @@ +/* + * Boost.Foreach support for pugixml classes. + * This file is provided to the public domain. + * Written by Arseny Kapoulkine (arseny.kapoulkine@gmail.com) + */ + +#ifndef HEADER_PUGIXML_FOREACH_HPP +#define HEADER_PUGIXML_FOREACH_HPP + +#include "pugixml.hpp" + +/* + * These types add support for BOOST_FOREACH macro to xml_node and xml_document classes (child iteration only). + * Example usage: + * BOOST_FOREACH(xml_node n, doc) {} + */ + +namespace boost +{ + template <typename> struct range_mutable_iterator; + template <typename> struct range_const_iterator; + + template<> struct range_mutable_iterator<pugi::xml_node> + { + typedef pugi::xml_node::iterator type; + }; + + template<> struct range_const_iterator<pugi::xml_node> + { + typedef pugi::xml_node::iterator type; + }; + + template<> struct range_mutable_iterator<pugi::xml_document> + { + typedef pugi::xml_document::iterator type; + }; + + template<> struct range_const_iterator<pugi::xml_document> + { + typedef pugi::xml_document::iterator type; + }; +} + +/* + * These types add support for BOOST_FOREACH macro to xml_node and xml_document classes (child/attribute iteration). + * Example usage: + * BOOST_FOREACH(xml_node n, children(doc)) {} + * BOOST_FOREACH(xml_node n, attributes(doc)) {} + */ + +namespace pugi +{ + struct xml_node_children_adapter + { + typedef pugi::xml_node::iterator iterator; + typedef pugi::xml_node::iterator const_iterator; + + xml_node node; + + const_iterator begin() const + { + return node.begin(); + } + + const_iterator end() const + { + return node.end(); + } + }; + + xml_node_children_adapter children(const pugi::xml_node& node) + { + xml_node_children_adapter result = {node}; + return result; + } + + struct xml_node_attribute_adapter + { + typedef pugi::xml_node::attribute_iterator iterator; + typedef pugi::xml_node::attribute_iterator const_iterator; + + xml_node node; + + const_iterator begin() const + { + return node.attributes_begin(); + } + + const_iterator end() const + { + return node.attributes_end(); + } + }; + + xml_node_attribute_adapter attributes(const pugi::xml_node& node) + { + xml_node_attribute_adapter result = {node}; + return result; + } +} + +#endif