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- // consts.h
- // Copyright (c) 2007-2009 Ben Hanson (http://www.benhanson.net/)
- //
- // Distributed under the Boost Software License, Version 1.0. (See accompanying
- // file licence_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- #ifndef BOOST_SPIRIT_SUPPORT_DETAIL_LEXER_CONSTS_HPP
- #define BOOST_SPIRIT_SUPPORT_DETAIL_LEXER_CONSTS_HPP
- #include <boost/config.hpp>
- #include <boost/integer_traits.hpp>
- #include "size_t.hpp"
- namespace boost
- {
- namespace lexer
- {
- enum regex_flags {none = 0, icase = 1, dot_not_newline = 2};
- // 0 = end state, 1 = id, 2 = unique_id, 3 = lex state, 4 = bol, 5 = eol,
- // 6 = dead_state_index
- enum {end_state_index, id_index, unique_id_index, state_index, bol_index,
- eol_index, dead_state_index, dfa_offset};
- const std::size_t max_macro_len = 30;
- const std::size_t num_chars = 256;
- // If sizeof(wchar_t) == sizeof(size_t) then don't overflow to 0
- // by adding one to comparison.
- const std::size_t num_wchar_ts =
- (boost::integer_traits<wchar_t>::const_max < 0x110000) ?
- boost::integer_traits<wchar_t>::const_max +
- static_cast<std::size_t> (1) : 0x110000;
- const std::size_t null_token = static_cast<std::size_t> (~0);
- const std::size_t bol_token = static_cast<std::size_t> (~1);
- const std::size_t eol_token = static_cast<std::size_t> (~2);
- const std::size_t end_state = 1;
- const std::size_t npos = static_cast<std::size_t> (~0);
- }
- }
- #endif
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