| 1 | #include <sstream>
|
|---|
| 2 | #include <iostream>
|
|---|
| 3 |
|
|---|
| 4 | #include <boost/spirit/include/lex_lexertl.hpp>
|
|---|
| 5 | #include <boost/spirit/include/lex_lexertl_position_token.hpp>
|
|---|
| 6 | #include <boost/spirit/include/support_istream_iterator.hpp>
|
|---|
| 7 |
|
|---|
| 8 | // if this gets defined, my parse passes and all input is consumed
|
|---|
| 9 | // #define BOOST_SPIRIT_DEBUG
|
|---|
| 10 | // if it is not defined, my parse passes but not all input is consumed
|
|---|
| 11 | #include <boost/spirit/include/qi.hpp>
|
|---|
| 12 | #include <boost/spirit/include/phoenix.hpp>
|
|---|
| 13 | #include <boost/lexical_cast.hpp>
|
|---|
| 14 |
|
|---|
| 15 | #include "keyword.h"
|
|---|
| 16 |
|
|---|
| 17 | // typedef for stream iterator we will use
|
|---|
| 18 | typedef boost::spirit::istream_iterator LefDefIter;
|
|---|
| 19 |
|
|---|
| 20 | // A skip parser for LEF/DEF comments and spaces
|
|---|
| 21 | // adapted from a presentation at Boostcon 2010 by Michael Caisse
|
|---|
| 22 | template <typename Iterator>
|
|---|
| 23 | struct lefdefskipper : boost::spirit::qi::grammar< Iterator >
|
|---|
| 24 | {
|
|---|
| 25 | lefdefskipper() : lefdefskipper::base_type(skip_it)
|
|---|
| 26 | {
|
|---|
| 27 | using namespace boost::spirit::qi;
|
|---|
| 28 |
|
|---|
| 29 | comment = '#' >> *( char_ - eol ) >> eol ;
|
|---|
| 30 | skip_it = comment | space ;
|
|---|
| 31 | }
|
|---|
| 32 | boost::spirit::qi::rule<Iterator> skip_it;
|
|---|
| 33 | boost::spirit::qi::rule<Iterator> comment;
|
|---|
| 34 | };
|
|---|
| 35 |
|
|---|
| 36 | template <typename Iterator>
|
|---|
| 37 | struct lefparser : boost::spirit::qi::grammar<Iterator,
|
|---|
| 38 | lefdefskipper<Iterator> >
|
|---|
| 39 | {
|
|---|
| 40 |
|
|---|
| 41 | lefparser() : lefparser::base_type(lef_file)
|
|---|
| 42 | {
|
|---|
| 43 | using namespace boost::spirit::qi;
|
|---|
| 44 | using namespace distinct;
|
|---|
| 45 | using boost::phoenix::ref; // for storing parsing info into parser var (instead of attributes)
|
|---|
| 46 |
|
|---|
| 47 | // here's MY bug: ">" binds more tightly than "|"
|
|---|
| 48 | // the ON/OFF options need parens
|
|---|
| 49 | // it's in trying to debug this that I noticed the BOOST_SPIRIT_DEBUG problem
|
|---|
| 50 | casesens = keyword["NAMESCASESENSITIVE"] >
|
|---|
| 51 | (string("ON")[ref(case_on) = true] |
|
|---|
| 52 | string("OFF")[ref(case_on) = false]) > ';' ;
|
|---|
| 53 |
|
|---|
| 54 | lef_file = -casesens >> -string("END") ;
|
|---|
| 55 |
|
|---|
| 56 | BOOST_SPIRIT_DEBUG_NODE(casesens);
|
|---|
| 57 | BOOST_SPIRIT_DEBUG_NODE(lef_file);
|
|---|
| 58 | }
|
|---|
| 59 | bool case_on;
|
|---|
| 60 | typedef boost::spirit::qi::rule<Iterator, lefdefskipper<Iterator> > NoAttrRule;
|
|---|
| 61 | NoAttrRule lef_file, casesens;
|
|---|
| 62 | };
|
|---|
| 63 |
|
|---|
| 64 | int main() {
|
|---|
| 65 | lefparser<LefDefIter> lefParser;
|
|---|
| 66 | lefdefskipper<LefDefIter> lefdefSkipper;
|
|---|
| 67 |
|
|---|
| 68 | std::stringstream testlef("NAMESCASESENSITIVE ON ;\nEND\n");
|
|---|
| 69 | testlef.unsetf(std::ios::skipws);
|
|---|
| 70 | LefDefIter beg = LefDefIter(testlef), end;
|
|---|
| 71 |
|
|---|
| 72 | if (!phrase_parse(beg, end, lefParser, lefdefSkipper)) {
|
|---|
| 73 | std::cerr << "parse failed\n";
|
|---|
| 74 | return 1;
|
|---|
| 75 | } else if (beg != end) {
|
|---|
| 76 | std::cerr << "Not all input consumed. Remaining input:|";
|
|---|
| 77 | std::copy(beg, end, std::ostream_iterator<char>(std::cerr));
|
|---|
| 78 | std::cerr << "|\n";
|
|---|
| 79 | return 1;
|
|---|
| 80 | }
|
|---|
| 81 | std::cerr << "parse passed\n";
|
|---|
| 82 | return 0;
|
|---|
| 83 | }
|
|---|
