// Copyright Sascha Ochsenknecht 2009.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt
// or copy at http://www.boost.org/LICENSE_1_0.txt)


#include <boost/program_options/parsers.hpp>
#include <boost/program_options/options_description.hpp>
#include <boost/program_options/variables_map.hpp>
#include <boost/program_options/cmdline.hpp>
using namespace boost::program_options;

#include <iostream>
#include <sstream>
#include <vector>
#include <cassert>
using namespace std;

#include "minitest.hpp"

void check_value(const string& option, const string& value)
{
    BOOST_CHECK(option == value);
}

void split_whitespace(const options_description& description)
{

   const char* cmdline = "prg --input input.txt \r --optimization 4  \t  --opt \n  option";
   
   vector< string > tokens =  split_unix(cmdline, " \t\n\r");
   
   BOOST_REQUIRE(tokens.size() == 7);
   
   check_value(tokens[0], "prg");
   check_value(tokens[1], "--input");
   check_value(tokens[2], "input.txt");
   check_value(tokens[3], "--optimization");
   check_value(tokens[4], "4");
   check_value(tokens[5], "--opt");
   check_value(tokens[6], "option");

   variables_map vm;  
   store(command_line_parser(tokens).options(description).run(), vm);
   notify(vm);
}

void split_equalsign(const options_description& description)
{

   const char* cmdline = "prg --input=input.txt  --optimization=4 --opt=option";
   
   vector< string > tokens =  split_unix(cmdline, "= ");
 
   BOOST_REQUIRE(tokens.size() == 7);
   check_value(tokens[0], "prg");
   check_value(tokens[1], "--input");
   check_value(tokens[2], "input.txt");
   check_value(tokens[3], "--optimization");
   check_value(tokens[4], "4");
   check_value(tokens[5], "--opt");
   check_value(tokens[6], "option");

   variables_map vm;  
   store(command_line_parser(tokens).options(description).run(), vm);
   notify(vm);
}

void split_semi(const options_description& description)
{

   const char* cmdline = "prg;--input input.txt;--optimization 4;--opt option";
   
   vector< string > tokens =  split_unix(cmdline, "; ");
   
   BOOST_REQUIRE(tokens.size() == 7);
   check_value(tokens[0], "prg");
   check_value(tokens[1], "--input");
   check_value(tokens[2], "input.txt");
   check_value(tokens[3], "--optimization");
   check_value(tokens[4], "4");
   check_value(tokens[5], "--opt");
   check_value(tokens[6], "option");

   variables_map vm;  
   store(command_line_parser(tokens).options(description).run(), vm);
   notify(vm);
}

void split_quotes(const options_description& description)
{
   const char* cmdline = "prg --input \"input.txt input.txt\" --optimization 4 --opt \"option1 option2\"";
   
   vector< string > tokens =  split_unix(cmdline, " ");
 
   BOOST_REQUIRE(tokens.size() == 7);
   check_value(tokens[0], "prg");
   check_value(tokens[1], "--input");
   check_value(tokens[2], "input.txt input.txt");
   check_value(tokens[3], "--optimization");
   check_value(tokens[4], "4");
   check_value(tokens[5], "--opt");
   check_value(tokens[6], "option1 option2");

   variables_map vm;  
   store(command_line_parser(tokens).options(description).run(), vm);
   notify(vm);
}

void split_escape(const options_description& description)
{
   const char* cmdline = "prg --input \\\"input.txt\\\" --optimization 4 --opt \\\"option1\\ option2\\\"";
   
   vector< string > tokens =  split_unix(cmdline, " ");
  
   BOOST_REQUIRE(tokens.size() == 7);
   check_value(tokens[0], "prg");
   check_value(tokens[1], "--input");
   check_value(tokens[2], "\"input.txt\"");
   check_value(tokens[3], "--optimization");
   check_value(tokens[4], "4");
   check_value(tokens[5], "--opt");
   check_value(tokens[6], "\"option1 option2\"");

   variables_map vm;  
   store(command_line_parser(tokens).options(description).run(), vm);
   notify(vm);
}


void split_single_quote(const options_description& description)
{
   const char* cmdline = "prg --input 'input.txt input.txt' --optimization 4 --opt 'option1 option2'";
   
   vector< string > tokens =  split_unix(cmdline, " ", "'");
 
   BOOST_REQUIRE(tokens.size() == 7);
   check_value(tokens[0], "prg");
   check_value(tokens[1], "--input");
   check_value(tokens[2], "input.txt input.txt");
   check_value(tokens[3], "--optimization");
   check_value(tokens[4], "4");
   check_value(tokens[5], "--opt");
   check_value(tokens[6], "option1 option2");

   variables_map vm;  
   store(command_line_parser(tokens).options(description).run(), vm);
   notify(vm);
}

void split_defaults(const options_description& description)
{
   const char* cmdline = "prg --input \t \'input file.txt\' \t   --optimization 4 --opt \\\"option1\\ option2\\\"";
   
   vector< string > tokens =  split_unix(cmdline);
  
   BOOST_REQUIRE(tokens.size() == 7);
   check_value(tokens[0], "prg");
   check_value(tokens[1], "--input");
   check_value(tokens[2], "input file.txt");
   check_value(tokens[3], "--optimization");
   check_value(tokens[4], "4");
   check_value(tokens[5], "--opt");
   check_value(tokens[6], "\"option1 option2\"");

   variables_map vm;  
   store(command_line_parser(tokens).options(description).run(), vm);
   notify(vm);
}

int main(int /*ac*/, char** /*av*/)
{
   options_description desc;
   desc.add_options()
        ("input,i", value<string>(), "the input file")
        ("optimization,O", value<unsigned>(), "optimization level")
        ("opt,o", value<string>(), "misc option")
      ;

   split_whitespace(desc);
   split_equalsign(desc);
   split_semi(desc);
   split_quotes(desc);
   split_escape(desc);
   split_single_quote(desc);
   split_defaults(desc);
   
   return 0;
}