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- // Copyright (c) 2009 Carl Barron
- //
- // 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 <string>
- #include <iostream>
- #include <boost/detail/lightweight_test.hpp>
- #include <boost/spirit/include/lex.hpp>
- #include <boost/spirit/include/lex_lexertl.hpp>
- #include <boost/spirit/include/phoenix_core.hpp>
- #include <boost/spirit/include/phoenix_function.hpp>
- namespace lex = boost::spirit::lex;
- namespace phoenix = boost::phoenix;
- ///////////////////////////////////////////////////////////////////////////////
- struct square_impl
- {
- template <class>
- struct result { typedef int type; };
- template <class A>
- int operator () (const A &x) const
- { return (x) * (x); }
- };
- phoenix::function<square_impl> const square = square_impl();
- ///////////////////////////////////////////////////////////////////////////////
- template <class Lexer>
- struct test_tokens : lex::lexer<Lexer>
- {
- test_tokens()
- {
- a = "a";
- this->self = a [lex::_val = square(*lex::_start)];
- }
- lex::token_def<int> a;
- };
- struct catch_result
- {
- template <class Token>
- bool operator() (Token const& x) const
- {
- BOOST_TEST(x.value().which() == 1);
- BOOST_TEST(boost::get<int>(x.value()) == 9409); // 9409 == 'a' * 'a'
- return true;
- }
- };
- ///////////////////////////////////////////////////////////////////////////////
- int main()
- {
- typedef lex::lexertl::token<std::string::iterator
- , boost::mpl::vector<int> > token_type;
- std::string in = "a";
- std::string::iterator first(in.begin());
- test_tokens<lex::lexertl::actor_lexer<token_type> > the_lexer;
- BOOST_TEST(lex::tokenize(first, in.end(), the_lexer, catch_result()));
- return boost::report_errors();
- }
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