getini.cpp

Example: getini.cpp application

#include <exception>
#include <iostream>
#include <fstream>
#include <iterator>
#include <stdexcept>
#include <cxxtools/inifile.h>
#include <cxxtools/loginit.h>
#include <cxxtools/log.h>
#include <cxxtools/arg.h>

log_define("cxxtools.getini")

int main(int argc, char* argv[])
{
  log_init();

  try
  {
    cxxtools::Arg<bool> quiet(argc, argv, 'q');

    if (argc <= 1)
    {
      std::cerr << "usage: " << argv[0]
        << " inifile [-q] [section [key [default]]]" << std::endl;
      return -1;
    }

    const char* fname = argv[1];
    std::ifstream in(fname);
    if (!in)
      throw std::runtime_error(std::string("error reading input file \"") + fname + '"');

    cxxtools::IniFile ini(in);

    if (argc <= 2)
    {
      // list sections
      if (!quiet)
        std::cout << "sections in " << fname << ": ";
      ini.getSections(std::ostream_iterator<std::string>(std::cout, "\t"));
      std::cout << std::endl;
      return 0;
    }

    const char* section = argv[2];
    if (argc <= 3)
    {
      // list keys
      if (!quiet)
        std::cout << "keys in " << fname << " [" << section << "]: ";
      ini.getKeys(section, std::ostream_iterator<std::string>(std::cout, "\t"));
      std::cout << std::endl;
      return 0;
    }

    const char* key = argv[3];
    const char* defvalue = argv[4] ? argv[4] : "";
    if (!quiet)
      std::cout << "value of " << fname << " [" << section << "]." << key << ": ";
    std::cout << ini.getValue(section, key, defvalue) << std::endl;
  }
  catch (const std::exception& e)
  {
    std::cerr << e.what() << std::endl;
  }
}