1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/*
Ousía
Copyright (C) 2014 Benjamin Paaßen, Andreas Stöckel
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file Main.cpp
*
* This file provides the command line interface for Ousia. More information
* on command line options can be found in the test.
*
* @author Benjamin Paaßen (bpaassen@techfak.uni-bielefeld.de)
*/
#include <algorithm>
#include <iostream>
#include <boost/program_options.hpp>
const size_t ERROR_IN_COMMAND_LINE = 1;
const size_t SUCCESS = 0;
const size_t ERROR_UNHANDLED_EXCEPTION = 2;
namespace po = boost::program_options;
int main(int argc, char **argv)
{
// Program options
po::options_description desc("Options");
std::string inputPath;
std::string outputPath;
std::string format;
/*
* This is a rather strange access mechanism: add_options() returns an
* easy_init object that has overloaded the () operator to accept new
* initializations. Again: Rather strange syntax, but it works.
*/
desc.add_options()("help", "Program help")(
"input,i", po::value<std::string>(&inputPath)->required(),
"The input document file name")(
"include,I", po::value<std::vector<std::string>>(),
"Include paths, where resources like the input document "
"or additional domains, typesystems, etc. might be "
"found.")(
"output,o", po::value<std::string>(&outputPath),
"The output file name. Per default the input file name will be used.")(
"format,F", po::value<std::string>(&format)->required(),
"The output format that shall be produced.");
po::variables_map vm;
try {
// try to read the values for each option to the variable map.
po::store(po::parse_command_line(argc, argv, desc), vm);
// first check the help option.
if (vm.count("help")) {
std::cout
<< "Ousia" << std::endl
<< "Copyright (C) 2014 Benjamin Paassen, Andreas Stoeckel"
// write the program options description as generated by boost
<< std::endl << desc << std::endl << std::endl;
return SUCCESS;
}
// only if the user did not want help to we use notify, which checks
// if all required options were given.
po::notify(vm);
}
catch (po::error &e) {
std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
std::cerr << desc << std::endl;
return ERROR_IN_COMMAND_LINE;
}
if(!vm.count("output")){
// TODO: Handle this better.
outputPath = inputPath;
if(outputPath.find(".oxd") != std::string::npos){
outputPath.erase(outputPath.end()-3, outputPath.end());
outputPath += format;
}
}
// TODO: Program logic.
std::cout << "input : " << vm["input"].as<std::string>() << std::endl;
std::cout << "output : " << outputPath << std::endl;
std::cout << "format : " << vm["format"].as<std::string>() << std::endl;
if(vm.count("include")){
std::vector<std::string> includes = vm["include"].as<std::vector<std::string>>();
std::cout << "includes : ";
for(auto& i : includes){
std::cout << i << ", ";
}
std::cout << std::endl;
}
return SUCCESS;
}
|
