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csv_grammar - handle 'quote' parameter dynamically

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This commit is contained in:
artemp 2015-10-02 12:19:09 +01:00
parent 98ea1c5cd9
commit 290c4d3e67
1 changed files with 8 additions and 7 deletions
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15
include/mapnik/csv/csv_grammar.hpp
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@ -36,13 +36,14 @@ using csv_line = std::vector<csv_value>;
using csv_data = std::vector<csv_line>;
template <typename Iterator>
struct csv_line_grammar : qi::grammar<Iterator, csv_line(std::string const&), qi::blank_type>
struct csv_line_grammar : qi::grammar<Iterator, csv_line(std::string const&, char), qi::blank_type>
{
csv_line_grammar() : csv_line_grammar::base_type(line)
{
using namespace qi;
qi::_a_type _a;
qi::_r1_type _r1;
qi::_r2_type _r2;
qi::lit_type lit;
//qi::eol_type eol;
qi::_1_type _1;
@ -62,21 +63,21 @@ struct csv_line_grammar : qi::grammar<Iterator, csv_line(std::string const&), qi
("\"\"", '\"') // double quote
;
line = column(_r1) % char_(_r1)
line = column(_r1, _r2) % char_(_r1)
;
column = -omit[char_("\n\r")] >> quoted | *(char_ - (lit(_r1) /*| eol*/))
column = -omit[char_("\n\r")] >> quoted(_r2) | *(char_ - (lit(_r1) /*| eol*/))
;
quoted = omit[char_("\"'")[_a = _1]] > text(_a) > -lit(_a)
quoted = omit[char_(_r1)[_a = _1]] > text(_a) > -lit(_a)
;
text = *(unesc_char | (char_ - char_(_r1)))
;
BOOST_SPIRIT_DEBUG_NODES((line)(column)(quoted));
}
private:
qi::rule<Iterator, csv_line(std::string const&), qi::blank_type> line;
qi::rule<Iterator, csv_value(std::string const&)> column; // no-skip
qi::rule<Iterator, csv_line(std::string const&, char), qi::blank_type> line;
qi::rule<Iterator, csv_value(std::string const&, char)> column; // no-skip
qi::rule<Iterator, csv_value(char)> text;
qi::rule<Iterator, qi::locals<char>, csv_value()> quoted;
qi::rule<Iterator, qi::locals<char>, csv_value(char)> quoted;
qi::symbols<char const, char const> unesc_char;
};