ceph/src/boost/libs/spirit/test/x3/lexeme.cpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2015 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 #include <boost/detail/lightweight_test.hpp>
   8 #include <boost/spirit/home/x3.hpp>
   9
  10 #include <iostream>
  11 #include "test.hpp"
  12
  13 int
  14 main()
  15 {
  16     using spirit_test::test;
  17     using boost::spirit::x3::ascii::space;
  18     using boost::spirit::x3::ascii::space_type;
  19     using boost::spirit::x3::ascii::digit;
  20     using boost::spirit::x3::lexeme;
  21     using boost::spirit::x3::rule;
  22
  23     {
  24         BOOST_TEST((test(" 1 2 3 4 5", +digit, space)));
  25         BOOST_TEST((!test(" 1 2 3 4 5", lexeme[+digit], space)));
  26         BOOST_TEST((test(" 12345", lexeme[+digit], space)));
  27         BOOST_TEST((test(" 12345  ", lexeme[+digit], space, false)));
  28
  29         // lexeme collapsing
  30         BOOST_TEST((!test(" 1 2 3 4 5", lexeme[lexeme[+digit]], space)));
  31         BOOST_TEST((test(" 12345", lexeme[lexeme[+digit]], space)));
  32         BOOST_TEST((test(" 12345  ", lexeme[lexeme[+digit]], space, false)));
  33
  34         auto r = +digit;
  35         auto rr = lexeme[r];
  36
  37         BOOST_TEST((!test(" 1 2 3 4 5", rr, space)));
  38         BOOST_TEST((test(" 12345", rr, space)));
  39     }
  40
  41     return boost::report_errors();
  42 }