text: // Read an INI file into easy-to-access name/value pairs.
  
  // inih and INIReader are released under the New BSD license (see LICENSE.txt).
  // Go to the project home page for more info:
  //
  // https://github.com/benhoyt/inih
  
  #include <algorithm>
  #include <cctype>
  #include <cstdlib>
  #include "ini.h"
  #include "INIReader.h"
  
  using std::string;
  
  INIReader::INIReader(string filename)
  {
      _error = ini_parse(filename.c_str(), ValueHandler, this);
  }
  
  int INIReader::ParseError()
  {
      return _error;
  }
  
  bool INIReader::HasSection(string section) {
      return std::find(_sections.begin(), _sections.end(), section) != _sections.end();
  }
  
  string INIReader::Get(string section, string name, string default_value)
  {
      string key = MakeKey(section, name);
      return _values.count(key) ? _values[key] : default_value;
  }
  
  long INIReader::GetInteger(string section, string name, long default_value)
  {
      string valstr = Get(section, name, "");
      const char* value = valstr.c_str();
      char* end;
      // This parses "1234" (decimal) and also "0x4D2" (hex)
      long n = strtol(value, &end, 0);
      return end > value ? n : default_value;
  }
  
  double INIReader::GetReal(string section, string name, double default_value)
  {
      string valstr = Get(section, name, "");
      const char* value = valstr.c_str();
      char* end;
      double n = strtod(value, &end);
      return end > value ? n : default_value;
  }
  
  bool INIReader::GetBoolean(string section, string name, bool default_value)
  {
      string valstr = Get(section, name, "");
      // Convert to lower case to make string comparisons case-insensitive
      std::transform(valstr.begin(), valstr.end(), valstr.begin(), ::tolower);
      if (valstr == "true" || valstr == "yes" || valstr == "on" || valstr == "1")
          return true;
      else if (valstr == "false" || valstr == "no" || valstr == "off" || valstr == "0")
          return false;
      else
          return default_value;
  }
  
  string INIReader::MakeKey(string section, string name)
  {
      string key = section + "=" + name;
      // Convert to lower case to make section/name lookups case-insensitive
      std::transform(key.begin(), key.end(), key.begin(), ::tolower);
      return key;
  }
  
  int INIReader::ValueHandler(void* user, const char* section, const char* name,
                              const char* value)
  {
      INIReader* reader = (INIReader*)user;
  
      // Populating section names
      if (std::find(reader->_sections.begin(), reader->_sections.end(), section) == reader->_sections.end()) {
        reader->_sections.push_back(section);
      }
  
      string key = MakeKey(section, name);
      if (reader->_values[key].size() > 0)
          reader->_values[key] += "\n";
      reader->_values[key] += value;
      return 1;
  }
  