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color.cc

#include "color.hh"
#include <iostream>

namespace {
      struct ColorNames {
            typedef std::map<std::string, Color> Map;
            Map m;
            ColorNames() {
                  m["none"] = Color(0.0, 0.0, 0.0, 0.0);
                  m["black"] = Color(0.0, 0.0, 0.0);
                  m["gray"] = Color(0.5, 0.5, 0.5);
                  m["silver"] = Color(0.75, 0.75, 0.75);
                  m["white"] = Color(1.0, 1.0, 1.0);
                  m["maroon"] = Color(0.5, 0.0, 0.0);
                  m["red"] = Color(1.0, 0.0, 0.0);
                  m["green"] = Color(0.0, 0.5, 0.0);
                  m["lime"] = Color(0.0, 1.0, 0.0);
                  m["navy"] = Color(0.0, 0.0, 0.5);
                  m["blue"] = Color(0.0, 0.0, 1.0);
                  m["purple"] = Color(0.5, 0.0, 0.5);
                  m["fuchsia"] = Color(1.0, 0.5, 1.0);
                  m["olive"] = Color(0.5, 0.5, 0.0);
                  m["yellow"] = Color(1.0, 1.0, 0.0);
                  m["teal"] = Color(0.0, 0.5, 0.5);
                  m["aqua"] = Color(0.0, 1.0, 1.0);
            }
      } colors;
}

Color::Color(std::string const& str) {
      unsigned int r = 0, g = 0, b = 0;
      if (str.size() == 7 && str[0] == '#' && sscanf(str.c_str() + 1, "%02x %02x %02x", &r, &g, &b) == 3) {
            *this = Color(r / 255.0, g / 255.0, b / 255.0);
            return;
      }
      ColorNames::Map::const_iterator it = colors.m.find(str);
      if (it != colors.m.end()) { *this = it->second; return; }
      std::cerr << "WARNING: Unknown color: " << str << " (using magenta to hilight)" << std::endl;
      *this = Color(1.0, 0.0, 1.0);
}


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