| 1 | // Copyright Vladimir Prus 2004. |
|---|---|
| 2 | // Distributed under the Boost Software License, Version 1.0. |
| 3 | // (See accompanying file LICENSE_1_0.txt |
| 4 | // or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 5 | |
| 6 | #ifndef BOOST_PROGRAM_OPTIONS_SOURCE |
| 7 | # define BOOST_PROGRAM_OPTIONS_SOURCE |
| 8 | #endif |
| 9 | #include <boost/program_options/config.hpp> |
| 10 | |
| 11 | #include <boost/program_options/positional_options.hpp> |
| 12 | |
| 13 | #include <boost/limits.hpp> |
| 14 | |
| 15 | #include <cassert> |
| 16 | |
| 17 | namespace boost { namespace program_options { |
| 18 | |
| 19 | positional_options_description::positional_options_description() |
| 20 | {} |
| 21 | |
| 22 | positional_options_description& |
| 23 | positional_options_description::add(const char* name, int max_count) |
| 24 | { |
| 25 | assert(max_count != -1 || m_trailing.empty()); |
| 26 | |
| 27 | if (max_count == -1) |
| 28 | m_trailing = name; |
| 29 | else { |
| 30 | m_names.resize(new_size: m_names.size() + max_count, x: name); |
| 31 | } |
| 32 | return *this; |
| 33 | } |
| 34 | |
| 35 | unsigned |
| 36 | positional_options_description::max_total_count() const |
| 37 | { |
| 38 | return m_trailing.empty() ? |
| 39 | static_cast<unsigned>(m_names.size()) : (std::numeric_limits<unsigned>::max)(); |
| 40 | } |
| 41 | |
| 42 | const std::string& |
| 43 | positional_options_description::name_for_position(unsigned position) const |
| 44 | { |
| 45 | assert(position < max_total_count()); |
| 46 | |
| 47 | if (position < m_names.size()) |
| 48 | return m_names[position]; |
| 49 | else |
| 50 | return m_trailing; |
| 51 | } |
| 52 | |
| 53 | |
| 54 | }} |
| 55 | |
| 56 |