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- // Copyright (c) 2001-2011 Hartmut Kaiser
- //
- // Distributed under the Boost Software License, Version 1.0. (See accompanying
- // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- #include <boost/detail/lightweight_test.hpp>
- #include <boost/spirit/include/lex_lexertl.hpp>
- #include <boost/spirit/include/lex_lexertl_position_token.hpp>
- #include "test.hpp"
- ///////////////////////////////////////////////////////////////////////////////
- int main()
- {
- using namespace boost::spirit;
- using namespace spirit_test;
- // the following test aims at the low level lexer and token_def objects,
- // normally not visible to/directly used by the user
- // initialize tokens
- typedef lex::token_def<std::string> token_def;
- std::size_t const CCOMMENT = 1;
- std::size_t const CPPCOMMENT = 2;
- token_def c_comment ("\\/\\*[^*]*\\*+([^/*][^*]*\\*+)*\\/", CCOMMENT);
- token_def cpp_comment ("\\/\\/[^\\n\\r]*(\\n|\\r|\\r\\n)", CPPCOMMENT);
- typedef std::string::iterator base_iterator_type;
- // test with default token type
- typedef lex::lexertl::token<base_iterator_type> token_type;
- typedef lex::lexertl::lexer<token_type> lexer_type;
- typedef lex::lexer<lexer_type> lexer_def;
- {
- // initialize lexer
- lexer_def lex;
- lex.self = c_comment;
- lex.self += cpp_comment;
- // test lexer for two different input strings
- BOOST_TEST(test (lex, "/* this is a comment */", CCOMMENT));
- BOOST_TEST(test (lex, "// this is a comment as well\n", CPPCOMMENT));
- }
- {
- // initialize lexer
- lexer_def lex;
- lex.self = c_comment | cpp_comment;
- // test lexer for two different input strings
- BOOST_TEST(test (lex, "/* this is a comment */", CCOMMENT));
- BOOST_TEST(test (lex, "// this is a comment as well\n", CPPCOMMENT));
- }
- {
- // initialize lexer
- lexer_def lex;
- lex.self = token_def('+') | '-' | c_comment;
- lex.self += lex::char_('*') | '/' | cpp_comment;
- // test lexer for two different input strings
- BOOST_TEST(test (lex, "/* this is a comment */", CCOMMENT));
- BOOST_TEST(test (lex, "// this is a comment as well\n", CPPCOMMENT));
- BOOST_TEST(test (lex, "+", '+'));
- BOOST_TEST(test (lex, "-", '-'));
- BOOST_TEST(test (lex, "*", '*'));
- BOOST_TEST(test (lex, "/", '/'));
- }
- // test with position_token
- typedef lex::lexertl::position_token<base_iterator_type> position_token_type;
- typedef lex::lexertl::lexer<position_token_type> position_lexer_type;
- typedef lex::lexer<position_lexer_type> position_lexer_def;
- {
- // initialize lexer
- position_lexer_def lex;
- lex.self = c_comment;
- lex.self += cpp_comment;
- // test lexer for two different input strings
- BOOST_TEST(test (lex, "/* this is a comment */", CCOMMENT));
- BOOST_TEST(test (lex, "// this is a comment as well\n", CPPCOMMENT));
- }
- {
- // initialize lexer
- position_lexer_def lex;
- lex.self = c_comment | cpp_comment;
- // test lexer for two different input strings
- BOOST_TEST(test (lex, "/* this is a comment */", CCOMMENT));
- BOOST_TEST(test (lex, "// this is a comment as well\n", CPPCOMMENT));
- }
- {
- // initialize lexer
- position_lexer_def lex;
- lex.self = token_def('+') | '-' | c_comment;
- lex.self += lex::char_('*') | '/' | cpp_comment;
- // test lexer for two different input strings
- BOOST_TEST(test (lex, "/* this is a comment */", CCOMMENT));
- BOOST_TEST(test (lex, "// this is a comment as well\n", CPPCOMMENT));
- BOOST_TEST(test (lex, "+", '+'));
- BOOST_TEST(test (lex, "-", '-'));
- BOOST_TEST(test (lex, "*", '*'));
- BOOST_TEST(test (lex, "/", '/'));
- }
- return boost::report_errors();
- }
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