1 | // |
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2 | // Copyright (c) 2005 João Abecasis |
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3 | // |
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4 | // Distributed under the Boost Software License, Version 1.0. (See |
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5 | // accompanying file LICENSE_1_0.txt or copy at |
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6 | // http://www.boost.org/LICENSE_1_0.txt) |
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7 | // |
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8 | |
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9 | #include <boost/spirit/core.hpp> |
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10 | #include <boost/spirit/attribute.hpp> |
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11 | #include <boost/spirit/utility/grammar_def.hpp> |
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12 | |
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13 | struct my_grammar1 |
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14 | : boost::spirit::grammar<my_grammar1> |
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15 | { |
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16 | template <typename Scanner> |
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17 | struct definition |
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18 | : boost::spirit::grammar_def< |
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19 | boost::spirit::rule<Scanner>, |
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20 | boost::spirit::same |
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21 | > |
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22 | { |
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23 | definition(my_grammar1 const &) |
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24 | { |
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25 | BOOST_SPIRIT_DEBUG_NODE(start_rule1); |
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26 | BOOST_SPIRIT_DEBUG_NODE(start_rule2); |
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27 | |
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28 | start_rule1 = boost::spirit::str_p("int"); |
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29 | start_rule2 = boost::spirit::int_p; |
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30 | |
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31 | this->start_parsers(start_rule1, start_rule2); |
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32 | } |
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33 | |
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34 | boost::spirit::rule<Scanner> |
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35 | start_rule1, |
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36 | start_rule2; |
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37 | }; |
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38 | }; |
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39 | |
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40 | struct my_closure : boost::spirit::closure<my_closure, int> |
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41 | { |
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42 | member1 value; |
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43 | }; |
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44 | |
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45 | struct my_grammar2 |
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46 | : boost::spirit::grammar<my_grammar2, my_closure::context_t> |
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47 | { |
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48 | template <typename Scanner> |
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49 | struct definition |
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50 | : boost::spirit::grammar_def< |
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51 | boost::spirit::rule<Scanner>, |
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52 | boost::spirit::same |
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53 | > |
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54 | { |
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55 | definition(my_grammar2 const &) |
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56 | { |
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57 | BOOST_SPIRIT_DEBUG_NODE(start_rule1); |
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58 | BOOST_SPIRIT_DEBUG_NODE(start_rule2); |
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59 | |
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60 | start_rule1 = boost::spirit::str_p("int"); |
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61 | start_rule2 = boost::spirit::int_p; |
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62 | |
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63 | this->start_parsers(start_rule1, start_rule2); |
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64 | } |
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65 | |
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66 | boost::spirit::rule<Scanner> |
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67 | start_rule1, |
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68 | start_rule2; |
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69 | }; |
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70 | }; |
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71 | |
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72 | int main() |
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73 | { |
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74 | my_grammar1 g1; |
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75 | my_grammar2 g2; |
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76 | |
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77 | BOOST_SPIRIT_DEBUG_NODE(g1); |
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78 | BOOST_SPIRIT_DEBUG_NODE(g2); |
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79 | |
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80 | parse( |
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81 | "int 5", |
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82 | g1.use_parser<0>() >> g2.use_parser<1>(), |
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83 | boost::spirit::space_p |
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84 | ); |
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85 | } |
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