skip.cpp 1.9 KB

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  1. /*=============================================================================
  2. Copyright (c) 2001-2011 Joel de Guzman
  3. Distributed under the Boost Software License, Version 1.0. (See accompanying
  4. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  5. =============================================================================*/
  6. #include <boost/detail/lightweight_test.hpp>
  7. #include <boost/spirit/include/qi_char.hpp>
  8. #include <boost/spirit/include/qi_directive.hpp>
  9. #include <boost/spirit/include/qi_operator.hpp>
  10. #include <boost/spirit/include/phoenix_core.hpp>
  11. #include <iostream>
  12. #include "test.hpp"
  13. int
  14. main()
  15. {
  16. using spirit_test::test;
  17. using spirit_test::test_attr;
  18. using boost::spirit::qi::skip;
  19. using boost::spirit::qi::lexeme;
  20. using boost::spirit::qi::lit;
  21. using boost::spirit::ascii::char_;
  22. using boost::spirit::ascii::space;
  23. using boost::spirit::ascii::alpha;
  24. {
  25. BOOST_TEST((test("a b c d", skip(space)[*char_])));
  26. }
  27. { // test attribute
  28. std::string s;
  29. BOOST_TEST((test_attr("a b c d", skip(space)[*char_], s)));
  30. BOOST_TEST(s == "abcd");
  31. }
  32. { // reskip
  33. BOOST_TEST((test("ab c d", lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']], space)));
  34. BOOST_TEST((test("abcd", lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']], space)));
  35. BOOST_TEST(!(test("a bcd", lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']], space)));
  36. BOOST_TEST((test("ab c d", lexeme[lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']]], space)));
  37. BOOST_TEST((test("abcd", lexeme[lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']]], space)));
  38. BOOST_TEST(!(test("a bcd", lexeme[lexeme[lit('a') >> 'b' >> skip[lit('c') >> 'd']]], space)));
  39. }
  40. { // lazy skip
  41. using boost::phoenix::val;
  42. BOOST_TEST((test("a b c d", skip(val(space))[*char_])));
  43. }
  44. return boost::report_errors();
  45. }