[Boost-users] Tree traversal in boost spirit

Hi, I would like to traverse a parsed tree. The parsing is fine. I am using this tutorial : http://en.highscore.de/cpp/boost/parser.html This is the instruction used for parsing : boost::spirit::parse_info<> pi = boost::spirit::parse(data.c_str(), g, boost::spirit::space_p); I would like to traverse the parsed tree like classical tree (Pre-order, In-order, Post-order) to have data in a given order. Any suggestion will be appreciated. Thank you. Regards Olivier