color_grammar.cpp

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#include "server/parser/color_grammar.hpp"

#include "utils/colorTable.hpp"

#include <boost/spirit/include/qi.hpp>
#include <boost/spirit/include/phoenix_core.hpp>
#include <boost/spirit/include/phoenix_operator.hpp>
#include <boost/spirit/include/phoenix_fusion.hpp>
#include <boost/spirit/include/phoenix_object.hpp>
#include <boost/spirit/include/phoenix_stl.hpp>
#include <boost/spirit/include/phoenix_bind.hpp>
#include <boost/spirit/include/phoenix.hpp>
#include <boost/spirit/include/qi_symbols.hpp>


ColorSymbols::ColorSymbols()
{
    auto& table = ColorTable::Inst().getTable();

    for(auto& entry : table)
    {
        this->add(entry.first, entry.second);
    }
}


ColorGrammar::ColorGrammar()
    : ColorGrammar::base_type(rule_color, "color-grammar")
{
    //using namespace boost::phoenix::local_names;
    using namespace qi::labels;
    using boost::phoenix::construct;
    auto& _1 = qi::_1;

    rule_hexvalue = (hexdigit[_a = _1] >> hexdigit[_val = _a * 16 + _1]);
    rule_hexcolor = qi::eps[_d = 255] >> (( rule_hexvalue[_a = _1] >> rule_hexvalue[_b = _1] >> rule_hexvalue[_c = _1] >> -(rule_hexvalue[_d = _1]))[_val = phx::construct<Color>(_a, _b, _c, _d)]
        | (hexdigit[_a = _1] >> hexdigit[_b = _1] >> hexdigit[_val = phx::construct<Color>(_a, _b, _1)]));

    rule_rgb = '(' >> qi::float_[_a = _1] >> ',' >> qi::float_[_b = _1] >> ',' >> qi::float_[_val = phx::construct<Color>(_a, _b, _1)] >> ')';
    rule_rgba = '(' >> qi::float_[_a = _1] >> ',' >> qi::float_[_b = _1] >> ',' >> qi::float_[_c = _1] >> ',' >> qi::float_[_val = phx::construct<Color>(_a, _b, _c, _1)] >> ')';
    rule_color = ('#' >> rule_hexcolor)
                | (qi::lit("rgb") >> rule_rgb)
                | (qi::lit("rgba") >> rule_rgba)
                | colorSymbol_;
        
            //qi::debug(rule_color);
            //qi::debug(rule_rgba);
            //qi::debug(rule_rgb);
    //      qi::debug(rule_hexcolor);
    //      qi::debug(rule_hexvalue);
}