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- // 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
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