Source: ../../rtrmgr/template_tree.hh

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// -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-

// Copyright (c) 2001-2009 XORP, Inc.
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, Version 2, June
// 1991 as published by the Free Software Foundation. Redistribution
// and/or modification of this program under the terms of any other
// version of the GNU General Public License is not permitted.
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// see the GNU General Public License, Version 2, a copy of which can be
// found in the XORP LICENSE.gpl file.
// XORP Inc, 2953 Bunker Hill Lane, Suite 204, Santa Clara, CA 95054, USA;

// $XORP: xorp/rtrmgr/template_tree.hh,v 1.28 2009/01/05 18:31:10 jtc Exp $


#include <map>
#include <list>
#include <set>

#include "path_segment.hh"
#include "rtrmgr_error.hh"
#include "xorp_client.hh"

class ModuleCommand;
class TemplateTreeNode;
class ConfPathSegment;

class TemplateTree {
    TemplateTree(const string& xorp_root_dir,
		 bool verbose)  throw (InitError);
    virtual ~TemplateTree();
    bool load_template_tree(const string& config_template_dir,
			    string& error_msg);
    bool parse_file(const string& filename, 
		    const string& config_template_dir, string& error_msg);
    void extend_path(const string& segment, bool is_tag);
    void pop_path() throw (ParseError);
    void push_path(int type, char* initializer);
    void add_untyped_node(const string& segment, bool is_tag) throw (ParseError);
    void add_node(const string& segment, int type, char* initializer);
    const TemplateTreeNode* find_node(const list<string>& path_segments) const;
    const TemplateTreeNode* 
        find_node_by_type(const list<ConfPathSegment>& path_segments) const;
    string path_as_string();
    void add_cmd(char* cmd) throw (ParseError);
    void add_cmd_action(const string& cmd, const list<string>& action)
	throw (ParseError);
    string tree_str() const;
    void register_module(const string& name, ModuleCommand* mc);
    ModuleCommand* find_module(const string& name);
    bool check_variable_name(const string& s) const;
    TemplateTreeNode* root_node() const { return _root_node; }
    const string& xorp_root_dir() const { return _xorp_root_dir; }
    bool verbose() const { return _verbose; }

    TemplateTreeNode* new_node(TemplateTreeNode* parent,
			       const string& path,
			       const string& varname,
			       int type,
			       const string& initializer);

    bool expand_template_tree(string& error_msg);
    bool check_template_tree(string& error_msg);

    TemplateTreeNode*	_root_node;
    TemplateTreeNode*	_current_node;
    map<string, ModuleCommand *> _registered_modules;
    list<PathSegment>	_path_segments;
    list<size_t>	_segment_lengths;
    string		_xorp_root_dir;	// The root of the XORP tree
    bool		_verbose;	// Set to true if output is verbose


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