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- /*==============================================================================
- Copyright (c) 2001-2011 Hartmut Kaiser
- Copyright (c) 2001-2011 Joel de Guzman
- Copyright (c) 2010-2011 Bryce Lelbach
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file BOOST_LICENSE_1_0.rst or copy at http://www.boost.org/LICENSE_1_0.txt)
- ==============================================================================*/
- #include <boost/spirit/include/support_istream_iterator.hpp>
- #include <boost/spirit/include/support_line_pos_iterator.hpp>
- #include <boost/spirit/include/qi_parse.hpp>
- #include "sexpr_parser.hpp"
- int
- main()
- {
- using boost::spirit::qi::phrase_parse;
- std::cout << "/////////////////////////////////////////////////////////\n\n";
- std::cout << "sexpr parser...\n\n";
- std::cout << "/////////////////////////////////////////////////////////\n\n";
- std::cout << "Type an expression... or [q or Q] to quit\n\n";
- typedef std::string::const_iterator iterator_type;
- typedef sexpr::parser<iterator_type> parser;
- typedef sexpr::whitespace<iterator_type> space;
- parser p;
- space ws;
- std::string str;
- while (std::getline(std::cin, str))
- {
- if (str.empty() || str[0] == 'q' || str[0] == 'Q')
- break;
- std::string::const_iterator iter = str.begin();
- std::string::const_iterator end = str.end();
- bool r = phrase_parse(iter, end, p, ws);
- if (r && iter == end)
- {
- std::cout << "-------------------------\n";
- std::cout << "Parsing succeeded\n";
- std::cout << "-------------------------\n";
- }
- else
- {
- std::string rest(iter, end);
- std::cout << "-------------------------\n";
- std::cout << "Parsing failed\n";
- std::cout << "stopped at: \": " << rest << "\"\n";
- std::cout << "-------------------------\n";
- }
- }
- std::cout << "Bye... :-) \n\n";
- return 0;
- }
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