ceph/src/boost/libs/spirit/example/x3/calc/calc8/common.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2014 Joel de Guzman
   3
   4     Distributed under the Boost Software License, Version 1.0. (See accompanying
   5     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 =============================================================================*/
   7 #if !defined(BOOST_SPIRIT_X3_CALC8_COMMON_HPP)
   8 #define BOOST_SPIRIT_X3_CALC8_COMMON_HPP
   9
  10 #include <boost/spirit/home/x3.hpp>
  11
  12 namespace client { namespace parser
  13 {
  14     using x3::raw;
  15     using x3::lexeme;
  16     using x3::alpha;
  17     using x3::alnum;
  18
  19     struct identifier_class;
  20     typedef x3::rule<identifier_class, std::string> identifier_type;
  21     identifier_type const identifier = "identifier";
  22
  23     auto const identifier_def = raw[lexeme[(alpha | '_') >> *(alnum | '_')]];
  24
  25     BOOST_SPIRIT_DEFINE(identifier);
  26 }}
  27
  28 #endif