Get font weight by its style name

font_weight.cpp

static int GetFontWeight(const std::string& styleStr)
{
    std::string lowerStr = ::ToLower(styleStr);
    const char* style = lowerStr.c_str();
    if (std::strlen(style) == 0 || 
        std::strstr(style, "normal") != nullptr || 
        std::strstr(style, "regular") != nullptr)
        return 400;
    else if (std::strstr(style, "thin") != nullptr)
        return 100;
    else if (std::strstr(style, "extralight") != nullptr || 
             std::strstr(style, "ultralight") != nullptr)
        return 200;
    else if (std::strstr(style, "semilight") != nullptr ||
             std::strstr(style, "demilight") != nullptr)
        return 350;
    else if (std::strstr(style, "light") != nullptr)
        return 300;
    else if (std::strstr(style, "medium") != nullptr)
        return 500;
    else if (std::strstr(style, "semibold") != nullptr || 
             std::strstr(style, "demibold") != nullptr)
        return 600;
    else if (std::strstr(style, "extrabold") != nullptr || 
             std::strstr(style, "ultrabold") != nullptr)
        return 800;
    else if (std::strstr(style, "bold") != nullptr)
        return 700;
    else if (std::strstr(style, "extrablack") != nullptr)
        return 950;
    else if (std::strstr(style, "black") != nullptr || 
             std::strstr(style, "heavy") != nullptr)
        return 900;
    else
        return 400;
}