| 422 | } |
| 423 | |
| 424 | void github_issue_279() |
| 425 | { |
| 426 | namespace bp = boost::parser; |
| 427 | |
| 428 | { |
| 429 | constexpr auto condition_clause = |
| 430 | bp::lit(U"while") > bp::lit(U"someexpression") >> bp::attr(true); |
| 431 | |
| 432 | constexpr auto do_statement = |
| 433 | bp::lexeme[bp::lit(U"do") >> &bp::ws] > -condition_clause > bp::eol; |
| 434 | |
| 435 | auto const result = |
| 436 | bp::parse(U"do\n", do_statement, bp::blank, bp::trace::off); |
| 437 | BOOST_TEST(result); |
| 438 | std::optional<bool> const & condition = result.value(); |
| 439 | BOOST_TEST(!condition.has_value()); |
| 440 | } |
| 441 | |
| 442 | { |
| 443 | constexpr auto condition_clause = |
| 444 | bp::lit(U"while") > bp::lit(U"someexpression") >> bp::attr(true); |
| 445 | |
| 446 | constexpr auto do_statement_reverse = |
| 447 | -condition_clause > bp::lexeme[bp::lit(U"do") >> &bp::ws] > bp::eol; |
| 448 | |
| 449 | auto const result = |
| 450 | bp::parse(U"do\n", do_statement_reverse, bp::blank, bp::trace::off); |
| 451 | BOOST_TEST(result); |
| 452 | std::optional<bool> const & condition = result.value(); |
| 453 | BOOST_TEST(!condition.has_value()); |
| 454 | } |
| 455 | } |
| 456 | |
| 457 | namespace github_issue_285_ { |
| 458 | namespace bp = boost::parser; |