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contrib: Added Boost.Foreach helpers

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git-svn-id: http://pugixml.googlecode.com/svn/trunk@243 99668b35-9821-0410-8761-19e4c4f06640
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arseny.kapoulkine 2010-02-02 20:45:55 +00:00
parent 933c092395
commit 764b54d042
1 changed files with 102 additions and 0 deletions
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/*
* 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