ceph/src/boost/libs/spirit/test/qi/skip.cpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2011 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/include/qi_char.hpp>
   9 #include <boost/spirit/include/qi_directive.hpp>
  10 #include <boost/spirit/include/qi_operator.hpp>
  11 #include <boost/spirit/include/phoenix_core.hpp>
  12
  13 #include <iostream>
  14 #include "test.hpp"
  15
  16 int
  17 main()
  18 {
  19     using spirit_test::test;
  20     using spirit_test::test_attr;
  21     using boost::spirit::qi::skip;
  22     using boost::spirit::qi::lexeme;
  23     using boost::spirit::qi::lit;
  24     using boost::spirit::ascii::char_;
  25     using boost::spirit::ascii::space;
  26     using boost::spirit::ascii::alpha;
  27
  28     {
  29         BOOST_TEST((test("a b c d", skip(space)[*char_])));
  30     }
  31
  32     { // test attribute
  33         std::string s;
  34         BOOST_TEST((test_attr("a b c d", skip(space)[*char_], s)));
  35         BOOST_TEST(s == "abcd");
  36     }
  37
  38     { // reskip
  39         BOOST_TEST((test("ab c d", lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']], space)));
  40         BOOST_TEST((test("abcd", lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']], space)));
  41         BOOST_TEST(!(test("a bcd", lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']], space)));
  42
  43         BOOST_TEST((test("ab c d", lexeme[lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']]], space)));
  44         BOOST_TEST((test("abcd", lexeme[lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']]], space)));
  45         BOOST_TEST(!(test("a bcd", lexeme[lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']]], space)));
  46     }
  47
  48     { // lazy skip
  49         using boost::phoenix::val;
  50
  51         BOOST_TEST((test("a b c d", skip(val(space))[*char_])));
  52     }
  53
  54     return boost::report_errors();
  55 }