| // Copyright 2010 Christophe Henry |
| // henry UNDERSCORE christophe AT hotmail DOT com |
| // This is an extended version of the state machine available in the boost::mpl library |
| // Distributed under the same license as the original. |
| // Copyright for the original version: |
| // Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed |
| // under the Boost Software License, Version 1.0. (See accompanying |
| // file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| |
| #ifndef BOOST_MSM_CHAR_EVENT_DISPATCHER_HPP |
| #define BOOST_MSM_CHAR_EVENT_DISPATCHER_HPP |
| |
| #include <boost/msm/back/common_types.hpp> |
| |
| struct digit {}; |
| struct char_0 : public digit {}; |
| struct char_1 : public digit {}; |
| struct char_2 : public digit {}; |
| struct char_3 : public digit {}; |
| struct char_4 : public digit {}; |
| struct char_5 : public digit {}; |
| struct char_6 : public digit {}; |
| struct char_7 : public digit {}; |
| struct char_8 : public digit {}; |
| struct char_9 : public digit {}; |
| struct minus_char {}; |
| template <char c> |
| struct event_char{}; |
| template <> |
| struct event_char<'0'> : public digit{}; |
| template <> |
| struct event_char<'1'> : public digit{}; |
| template <> |
| struct event_char<'2'> : public digit{}; |
| template <> |
| struct event_char<'3'> : public digit{}; |
| template <> |
| struct event_char<'4'> : public digit{}; |
| template <> |
| struct event_char<'5'> : public digit{}; |
| template <> |
| struct event_char<'6'> : public digit{}; |
| template <> |
| struct event_char<'7'> : public digit{}; |
| template <> |
| struct event_char<'8'> : public digit{}; |
| template <> |
| struct event_char<'9'> : public digit{}; |
| |
| namespace boost { namespace msm { namespace back { |
| |
| |
| template <class Fsm> |
| struct char_event_dispatcher |
| { |
| template <char c> |
| struct dispatch_event_helper |
| { |
| static execute_return apply(Fsm& fsm) |
| { |
| return fsm.process_event(event_char<c>()); |
| } |
| }; |
| char_event_dispatcher() |
| { |
| entries[0x30]=&dispatch_event_helper<'0'>::apply; |
| entries[0x31]=&dispatch_event_helper<'1'>::apply; |
| entries[0x32]=&dispatch_event_helper<'2'>::apply; |
| entries[0x33]=&dispatch_event_helper<'3'>::apply; |
| entries[0x34]=&dispatch_event_helper<'4'>::apply; |
| entries[0x35]=&dispatch_event_helper<'5'>::apply; |
| entries[0x36]=&dispatch_event_helper<'6'>::apply; |
| entries[0x37]=&dispatch_event_helper<'7'>::apply; |
| entries[0x38]=&dispatch_event_helper<'8'>::apply; |
| entries[0x39]=&dispatch_event_helper<'9'>::apply; |
| entries[0x2D]=&dispatch_event_helper<'-'>::apply; |
| entries[0x2B]=&dispatch_event_helper<'+'>::apply; |
| } |
| execute_return process_event(Fsm& fsm,char c) const |
| { |
| return entries[c](fsm); |
| } |
| |
| // The singleton instance. |
| static const char_event_dispatcher instance; |
| typedef execute_return (*cell)(Fsm&); |
| cell entries[255]; |
| }; |
| |
| }}} // boost::msm::back |
| #endif //BOOST_MSM_CHAR_EVENT_DISPATCHER_HPP |