ceph/src/boost/boost/spirit/home/support/detail/lexer/consts.hpp

   1 // consts.h
   2 // Copyright (c) 2007-2009 Ben Hanson (http://www.benhanson.net/)
   3 //
   4 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   5 // file licence_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 #ifndef BOOST_LEXER_CONSTS_H
   7 #define BOOST_LEXER_CONSTS_H
   8
   9 #include <boost/config.hpp>
  10 #include <boost/integer_traits.hpp>
  11 #include "size_t.hpp"
  12
  13 namespace boost
  14 {
  15 namespace lexer
  16 {
  17     enum regex_flags {none = 0, icase = 1, dot_not_newline = 2};
  18     // 0 = end state, 1 = id, 2 = unique_id, 3 = lex state, 4 = bol, 5 = eol,
  19     // 6 = dead_state_index
  20     enum {end_state_index, id_index, unique_id_index, state_index, bol_index,
  21         eol_index, dead_state_index, dfa_offset};
  22
  23     const std::size_t max_macro_len = 30;
  24     const std::size_t num_chars = 256;
  25     // If sizeof(wchar_t) == sizeof(size_t) then don't overflow to 0
  26     // by adding one to comparison.
  27     const std::size_t num_wchar_ts =
  28         (boost::integer_traits<wchar_t>::const_max < 0x110000) ?
  29         boost::integer_traits<wchar_t>::const_max +
  30         static_cast<std::size_t> (1) : 0x110000;
  31     const std::size_t null_token = static_cast<std::size_t> (~0);
  32     const std::size_t bol_token = static_cast<std::size_t> (~1);
  33     const std::size_t eol_token = static_cast<std::size_t> (~2);
  34     const std::size_t end_state = 1;
  35     const std::size_t npos = static_cast<std::size_t> (~0);
  36 }
  37 }
  38
  39 #endif