/*=============================================================================
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Copyright (c) 2001-2003 Daniel Nuffer
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Copyright (c) 2001-2007 Hartmut Kaiser
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http://spirit.sourceforge.net/
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef BOOST_SPIRIT_CLASSIC_TREE_PARSE_TREE_UTILS_HPP
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#define BOOST_SPIRIT_CLASSIC_TREE_PARSE_TREE_UTILS_HPP
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#include <utility> // for std::pair
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#include <boost/spirit/home/classic/tree/parse_tree.hpp> // needed for parse tree generation
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///////////////////////////////////////////////////////////////////////////////
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namespace boost {
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namespace spirit {
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BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
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///////////////////////////////////////////////////////////////////////////////
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//
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// The function 'get_first_leaf' returnes a reference to the first leaf node
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// of the given parsetree.
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//
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///////////////////////////////////////////////////////////////////////////////
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template <typename T>
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tree_node<T> const &
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get_first_leaf (tree_node<T> const &node);
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///////////////////////////////////////////////////////////////////////////////
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//
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// The function 'find_node' finds a specified node through recursive search.
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// If the return value is true, the variable to which points the parameter
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// 'found_node' will contain the address of the node with the given rule_id.
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//
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///////////////////////////////////////////////////////////////////////////////
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template <typename T>
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bool
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find_node (tree_node<T> const &node, parser_id node_to_search,
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tree_node<T> const **found_node);
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///////////////////////////////////////////////////////////////////////////////
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//
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// The function 'get_node_range' return a pair of iterators pointing at the
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// range, which contains the elements of a specified node. It's very useful
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// for locating all information related with a specified node.
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//
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///////////////////////////////////////////////////////////////////////////////
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template <typename T>
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bool
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get_node_range (tree_node<T> const &node, parser_id node_to_search,
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std::pair<typename tree_node<T>::const_tree_iterator,
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typename tree_node<T>::const_tree_iterator> &nodes);
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///////////////////////////////////////////////////////////////////////////////
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BOOST_SPIRIT_CLASSIC_NAMESPACE_END
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} // namespace spirit
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} // namespace boost
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#include <boost/spirit/home/classic/tree/impl/parse_tree_utils.ipp>
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#endif
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