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/Src/Dependencies/Boost/boost/spirit/home/support/detail/lexer/consts.hpp

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C++ Header | 39 lines | 26 code | 4 blank | 9 comment | 0 complexity | a9ddc145b4102ce358682a4e72f2c8d7 MD5 | raw file
 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
13namespace boost
14{
15namespace 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