4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
6 // Stefan Bund <g0dil@berlios.de>
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the
20 // Free Software Foundation, Inc.,
21 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 \brief OverloadedCommand public header */
26 #ifndef HH_OverloadedCommand_
27 #define HH_OverloadedCommand_ 1
31 #include <boost/intrusive_ptr.hpp>
32 #include "../Utils/intrusive_refcount.hh"
34 //#include "OverloadedCommand.mpp"
35 ///////////////////////////////hh.p////////////////////////////////////////
40 class OverloadedCommandNode;
45 std::string defaultValue;
49 /** \brief Base class for command overload of OverloadedCommandNode
51 This class is the base class of the commands which may be added to an
52 OverloadedCommandNode.
55 : public senf::intrusive_refcount
58 ///////////////////////////////////////////////////////////////////////////
61 typedef boost::intrusive_ptr<CommandOverload> ptr;
62 typedef boost::intrusive_ptr<CommandOverload const> cptr;
64 ///////////////////////////////////////////////////////////////////////////
66 virtual ~CommandOverload();
68 void execute(std::ostream & os, ParseCommandInfo const & command);
69 ///< Call the overload
70 /**< If the \a arguments are not acceptable for this
71 overload, a SyntaxErrorException must be thrown.
72 Same as operator()() */
74 void operator()(std::ostream & os, ParseCommandInfo const & command);
75 ///< Call the overload
76 /**< If the \a arguments are not acceptable for this
77 overload, a SyntaxErrorException must be thrown.
80 unsigned numArguments() const;
81 void argumentDoc(unsigned index, ArgumentDoc & doc) const;
82 std::string doc() const;
84 OverloadedCommandNode & node() const; ///< Access owning node
85 /**< \pre The command \e must have been added to an
86 OverloadedCommandNode. */
87 unsigned overloadIndex() const;
95 virtual unsigned v_numArguments() const = 0;
96 virtual void v_argumentDoc(unsigned index, ArgumentDoc & doc) const = 0;
97 virtual std::string v_doc() const = 0;
98 virtual void v_execute(std::ostream & os, ParseCommandInfo const & command) const = 0;
101 OverloadedCommandNode * node_;
103 friend class OverloadedCommandNode;
106 /** \brief Command node which allows multiple registered callbacks
108 OverloadedCommandNode is like SimpleCommandNode but allows to register multiple commands to
109 a single node. This works by calling each command in the list consecutively until no
110 'SyntaxErrorException' exception is thrown.
112 This works by first adding an OverloadedCommandNode to the directory in question and then
113 adding commands to that node. Commands are derived from CommandOverload.
115 senf::console::DirectoryNode & dir (...);
116 senf::console::OverloadedCommandNode & cmd (
117 dir.add("cmd", senf::console::OverloadedCommandNode::create()) );
118 cmd.add(senf::console::SimpleCommandOverload::create(&callback));
119 cmd.add(senf::console::SimpleCommandOverload::create(&anotherCallback));
122 However, this facility is mostly used not directly but indirectly (and automatically) when
123 adding argument parsing callbacks.
125 \warning For this to work, the commands <b>must</b> do all syntax checking before doing any
130 class OverloadedCommandNode
134 ///////////////////////////////////////////////////////////////////////////
137 typedef boost::shared_ptr<OverloadedCommandNode> ptr;
138 typedef boost::shared_ptr<OverloadedCommandNode const> cptr;
139 typedef boost::weak_ptr<OverloadedCommandNode> weak_ptr;
141 ///////////////////////////////////////////////////////////////////////////
142 ///\name Structors and default members
148 ///////////////////////////////////////////////////////////////////////////
150 template <class Command>
151 Command & add(boost::intrusive_ptr<Command> overload); ///< Add an additional overload
154 cptr thisptr() const;
156 OverloadedCommandNode & doc(std::string const & doc);
157 ///< Assign global help for all overloads
159 unsigned overloadIndex(CommandOverload const & overload);
164 OverloadedCommandNode();
166 virtual void v_help(std::ostream & output) const;
167 virtual void v_execute(std::ostream & output, ParseCommandInfo const & command) const;
169 typedef std::vector<CommandOverload::ptr> Overloads;
171 Overloads overloads_;
175 /** \brief Basic command overload
177 This is an implementation of CommandOverload which allows to call an arbitrary callback with
178 the correct signature
179 (<tt>void (std::ostream &, senf::console::ParseCommandInfo const &)</tt>)
181 class SimpleCommandOverload
182 : public CommandOverload
185 ///////////////////////////////////////////////////////////////////////////
188 typedef boost::intrusive_ptr<SimpleCommandOverload> ptr;
189 typedef boost::function<void (std::ostream &, ParseCommandInfo const &)> Function;
191 ///////////////////////////////////////////////////////////////////////////
192 ///\name Structors and default members
195 static SimpleCommandOverload::ptr create(Function fn);
196 ///< Create new SimpleCommandOverload
197 /**< \param[in] fn callback to call */
200 ///////////////////////////////////////////////////////////////////////////
202 SimpleCommandOverload & doc(std::string const & doc);
203 ///< Assign overload specific documentation
208 SimpleCommandOverload(Function fn);
210 virtual unsigned v_numArguments() const;
211 virtual void v_argumentDoc(unsigned index, ArgumentDoc & doc) const;
212 virtual std::string v_doc() const;
213 virtual void v_execute(std::ostream & os, ParseCommandInfo const & command) const;
221 ///////////////////////////////hh.e////////////////////////////////////////
222 #include "OverloadedCommand.cci"
223 //#include "OverloadedCommand.ct"
224 #include "OverloadedCommand.cti"
231 // comment-column: 40
232 // c-file-style: "senf"
233 // indent-tabs-mode: nil
234 // ispell-local-dictionary: "american"
235 // compile-command: "scons -u test"