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include/boost/process/v1/detail/basic_cmd.hpp
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292
include/boost/process/v1/detail/basic_cmd.hpp
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// Copyright (c) 2016 Klemens D. Morgenstern
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_PROCESS_DETAIL_BASIC_CMD_HPP_
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#define BOOST_PROCESS_DETAIL_BASIC_CMD_HPP_
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#include <boost/process/v1/detail/config.hpp>
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#include <boost/process/v1/detail/handler_base.hpp>
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#include <boost/process/v1/detail/traits/cmd_or_exe.hpp>
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#include <boost/process/v1/detail/traits/wchar_t.hpp>
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#if defined( BOOST_WINDOWS_API )
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#include <boost/process/v1/detail/windows/basic_cmd.hpp>
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#include <boost/process/v1/detail/windows/cmd.hpp>
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#elif defined( BOOST_POSIX_API )
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#include <boost/process/v1/detail/posix/basic_cmd.hpp>
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#include <boost/process/v1/detail/posix/cmd.hpp>
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#endif
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#include <boost/process/v1/shell.hpp>
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#include <iterator>
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namespace boost { namespace process { BOOST_PROCESS_V1_INLINE namespace v1 { namespace detail {
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template<typename Char>
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struct exe_setter_
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{
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typedef Char value_type;
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typedef std::basic_string<Char> string_type;
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string_type exe_;
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exe_setter_(string_type && str) : exe_(std::move(str)) {}
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exe_setter_(const string_type & str) : exe_(str) {}
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};
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template<> struct is_wchar_t<exe_setter_<wchar_t>> : std::true_type {};
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template<>
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struct char_converter<char, exe_setter_<wchar_t>>
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{
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static exe_setter_<char> conv(const exe_setter_<wchar_t> & in)
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{
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return {::boost::process::v1::detail::convert(in.exe_)};
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}
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};
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template<>
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struct char_converter<wchar_t, exe_setter_<char>>
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{
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static exe_setter_<wchar_t> conv(const exe_setter_<char> & in)
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{
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return {::boost::process::v1::detail::convert(in.exe_)};
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}
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};
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template <typename Char, bool Append >
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struct arg_setter_
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{
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using value_type = Char;
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using string_type = std::basic_string<value_type>;
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std::vector<string_type> _args;
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typedef typename std::vector<string_type>::iterator iterator;
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typedef typename std::vector<string_type>::const_iterator const_iterator;
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template<typename Iterator>
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arg_setter_(Iterator && begin, Iterator && end) : _args(begin, end) {}
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template<typename Range>
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arg_setter_(Range && str) :
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_args(std::begin(str),
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std::end(str)) {}
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iterator begin() {return _args.begin();}
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iterator end() {return _args.end();}
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const_iterator begin() const {return _args.begin();}
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const_iterator end() const {return _args.end();}
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arg_setter_(string_type & str) : _args{{str}} {}
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arg_setter_(string_type && s) : _args({std::move(s)}) {}
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arg_setter_(const string_type & s) : _args({s}) {}
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arg_setter_(const value_type* s) : _args({std::move(s)}) {}
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template<std::size_t Size>
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arg_setter_(const value_type (&s) [Size]) : _args({s}) {}
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};
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template<> struct is_wchar_t<arg_setter_<wchar_t, true >> : std::true_type {};
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template<> struct is_wchar_t<arg_setter_<wchar_t, false>> : std::true_type {};
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template<>
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struct char_converter<char, arg_setter_<wchar_t, true>>
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{
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static arg_setter_<char, true> conv(const arg_setter_<wchar_t, true> & in)
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{
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std::vector<std::string> vec(in._args.size());
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std::transform(in._args.begin(), in._args.end(), vec.begin(),
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[](const std::wstring & ws)
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{
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return ::boost::process::v1::detail::convert(ws);
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});
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return {vec};
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}
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};
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template<>
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struct char_converter<wchar_t, arg_setter_<char, true>>
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{
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static arg_setter_<wchar_t, true> conv(const arg_setter_<char, true> & in)
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{
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std::vector<std::wstring> vec(in._args.size());
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std::transform(in._args.begin(), in._args.end(), vec.begin(),
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[](const std::string & ws)
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{
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return ::boost::process::v1::detail::convert(ws);
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});
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return {vec};
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}
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};
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template<>
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struct char_converter<char, arg_setter_<wchar_t, false>>
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{
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static arg_setter_<char, false> conv(const arg_setter_<wchar_t, false> & in)
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{
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std::vector<std::string> vec(in._args.size());
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std::transform(in._args.begin(), in._args.end(), vec.begin(),
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[](const std::wstring & ws)
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{
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return ::boost::process::v1::detail::convert(ws);
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});
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return {vec}; }
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};
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template<>
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struct char_converter<wchar_t, arg_setter_<char, false>>
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{
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static arg_setter_<wchar_t, false> conv(const arg_setter_<char, false> & in)
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{
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std::vector<std::wstring> vec(in._args.size());
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std::transform(in._args.begin(), in._args.end(), vec.begin(),
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[](const std::string & ws)
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{
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return ::boost::process::v1::detail::convert(ws);
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});
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return {vec};
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}
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};
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using api::exe_cmd_init;
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template<typename Char>
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struct exe_builder
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{
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//set by path, because that will not be interpreted as a cmd
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bool not_cmd = false;
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bool shell = false;
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using string_type = std::basic_string<Char>;
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string_type exe;
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std::vector<string_type> args;
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void operator()(const boost::process::v1::filesystem::path & data)
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{
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not_cmd = true;
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if (exe.empty())
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exe = data.native();
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else
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args.push_back(data.native());
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}
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void operator()(const string_type & data)
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{
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if (exe.empty())
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exe = data;
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else
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args.push_back(data);
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}
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void operator()(const Char* data)
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{
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if (exe.empty())
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exe = data;
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else
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args.push_back(data);
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}
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void operator()(shell_) {shell = true;}
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void operator()(std::vector<string_type> && data)
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{
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if (data.empty())
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return;
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auto itr = std::make_move_iterator(data.begin());
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auto end = std::make_move_iterator(data.end());
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if (exe.empty())
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{
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exe = *itr;
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itr++;
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}
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args.insert(args.end(), itr, end);
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}
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void operator()(const std::vector<string_type> & data)
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{
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if (data.empty())
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return;
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auto itr = data.begin();
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auto end = data.end();
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if (exe.empty())
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{
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exe = *itr;
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itr++;
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}
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args.insert(args.end(), itr, end);
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}
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void operator()(exe_setter_<Char> && data)
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{
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not_cmd = true;
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exe = std::move(data.exe_);
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}
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void operator()(const exe_setter_<Char> & data)
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{
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not_cmd = true;
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exe = data.exe_;
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}
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void operator()(arg_setter_<Char, false> && data)
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{
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args.assign(
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std::make_move_iterator(data._args.begin()),
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std::make_move_iterator(data._args.end()));
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}
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void operator()(arg_setter_<Char, true> && data)
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{
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args.insert(args.end(),
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std::make_move_iterator(data._args.begin()),
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std::make_move_iterator(data._args.end()));
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}
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void operator()(const arg_setter_<Char, false> & data)
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{
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args.assign(data._args.begin(), data._args.end());
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}
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void operator()(const arg_setter_<Char, true> & data)
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{
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args.insert(args.end(), data._args.begin(), data._args.end());
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}
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api::exe_cmd_init<Char> get_initializer()
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{
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if (not_cmd || !args.empty())
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{
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if (shell)
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return api::exe_cmd_init<Char>::exe_args_shell(std::move(exe), std::move(args));
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else
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return api::exe_cmd_init<Char>::exe_args(std::move(exe), std::move(args));
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}
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else
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if (shell)
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return api::exe_cmd_init<Char>::cmd_shell(std::move(exe));
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else
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return api::exe_cmd_init<Char>::cmd(std::move(exe));
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}
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typedef api::exe_cmd_init<Char> result_type;
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};
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template<>
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struct initializer_builder<cmd_or_exe_tag<char>>
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{
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typedef exe_builder<char> type;
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};
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template<>
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struct initializer_builder<cmd_or_exe_tag<wchar_t>>
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{
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typedef exe_builder<wchar_t> type;
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};
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}}}}
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#endif /* BOOST_PROCESS_DETAIL_EXE_BUILDER_HPP_ */
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