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/* Copyright © 2016 Taylor C. Richberger <taywee@gmx.com>
* This code is released under the license described in the LICENSE file
*/
#include <iostream>
#include <tuple>
#include <args.hxx>
std::istream& operator>>(std::istream& is, std::tuple<int, int>& ints)
{
is >> std::get<0>(ints);
is.get();
is >> std::get<1>(ints);
return is;
}
void DoublesReader(const std::string &name, const std::string &value, std::tuple<double, double> &destination)
{
size_t commapos = 0;
std::get<0>(destination) = std::stod(value, &commapos);
std::get<1>(destination) = std::stod(std::string(value, commapos + 1));
}
int main(int argc, char **argv)
{
args::ArgumentParser parser("This is a test program.");
args::PosArg<std::tuple<int, int>> ints(parser, "INTS", "This takes a pair of integers.");
args::PosArg<std::tuple<double, double>, DoublesReader> doubles(parser, "DOUBLES", "This takes a pair of doubles.");
try
{
parser.ParseCLI(argc, argv);
}
catch (args::Help)
{
std::cout << parser.Help();
return 0;
}
catch (args::ParseError e)
{
std::cerr << e.what() << std::endl;
std::cerr << parser.Help();
return 1;
}
if (ints)
{
std::cout << "ints found: " << std::get<0>(ints.value) << " and " << std::get<1>(ints.value) << std::endl;
}
if (doubles)
{
std::cout << "doubles found: " << std::get<0>(doubles.value) << " and " << std::get<1>(doubles.value) << std::endl;
}
return 0;
}
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