7822 lines
295 KiB
C++
7822 lines
295 KiB
C++
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#pragma once
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// CLI11: Version 1.8.0
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// Originally designed by Henry Schreiner
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// https://github.com/CLIUtils/CLI11
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//
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// This is a standalone header file generated by MakeSingleHeader.py in CLI11/scripts
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// from: v1.8.0
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//
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// From LICENSE:
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//
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// CLI11 1.8 Copyright (c) 2017-2019 University of Cincinnati, developed by Henry
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// Schreiner under NSF AWARD 1414736. All rights reserved.
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//
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// Redistribution and use in source and binary forms of CLI11, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its contributors
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// may be used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Standard combined includes:
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#include <algorithm>
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#include <cmath>
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#include <deque>
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#include <exception>
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#include <fstream>
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#include <functional>
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#include <iomanip>
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#include <iostream>
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#include <istream>
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#include <iterator>
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#include <locale>
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#include <map>
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#include <memory>
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#include <numeric>
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#include <set>
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#include <sstream>
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#include <stdexcept>
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#include <string>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <tuple>
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#include <type_traits>
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#include <utility>
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#include <vector>
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// Verbatim copy from CLI/Version.hpp:
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#define CLI11_VERSION_MAJOR 1
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#define CLI11_VERSION_MINOR 8
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#define CLI11_VERSION_PATCH 0
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#define CLI11_VERSION "1.8.0"
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// Verbatim copy from CLI/Macros.hpp:
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// The following version macro is very similar to the one in PyBind11
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#if !(defined(_MSC_VER) && __cplusplus == 199711L) && !defined(__INTEL_COMPILER)
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#if __cplusplus >= 201402L
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#define CLI11_CPP14
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#if __cplusplus >= 201703L
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#define CLI11_CPP17
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#if __cplusplus > 201703L
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#define CLI11_CPP20
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#endif
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#endif
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#endif
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#elif defined(_MSC_VER) && __cplusplus == 199711L
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// MSVC sets _MSVC_LANG rather than __cplusplus (supposedly until the standard is fully implemented)
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// Unless you use the /Zc:__cplusplus flag on Visual Studio 2017 15.7 Preview 3 or newer
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#if _MSVC_LANG >= 201402L
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#define CLI11_CPP14
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#if _MSVC_LANG > 201402L && _MSC_VER >= 1910
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#define CLI11_CPP17
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#if __MSVC_LANG > 201703L && _MSC_VER >= 1910
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#define CLI11_CPP20
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#endif
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#endif
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#endif
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#endif
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#if defined(CLI11_CPP14)
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#define CLI11_DEPRECATED(reason) [[deprecated(reason)]]
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#elif defined(_MSC_VER)
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#define CLI11_DEPRECATED(reason) __declspec(deprecated(reason))
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#else
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#define CLI11_DEPRECATED(reason) __attribute__((deprecated(reason)))
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#endif
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// Verbatim copy from CLI/Optional.hpp:
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// You can explicitly enable or disable support
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// by defining to 1 or 0. Extra check here to ensure it's in the stdlib too.
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// We nest the check for __has_include and it's usage
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#ifndef CLI11_STD_OPTIONAL
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#ifdef __has_include
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#if defined(CLI11_CPP17) && __has_include(<optional>)
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#define CLI11_STD_OPTIONAL 1
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#else
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#define CLI11_STD_OPTIONAL 0
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#endif
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#else
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#define CLI11_STD_OPTIONAL 0
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#endif
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#endif
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#ifndef CLI11_EXPERIMENTAL_OPTIONAL
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#define CLI11_EXPERIMENTAL_OPTIONAL 0
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#endif
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#ifndef CLI11_BOOST_OPTIONAL
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#define CLI11_BOOST_OPTIONAL 0
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#endif
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#if CLI11_BOOST_OPTIONAL
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#include <boost/version.hpp>
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#if BOOST_VERSION < 106100
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#error "This boost::optional version is not supported, use 1.61 or better"
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#endif
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#endif
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#if CLI11_STD_OPTIONAL
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#include <optional>
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#endif
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#if CLI11_EXPERIMENTAL_OPTIONAL
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#include <experimental/optional>
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#endif
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#if CLI11_BOOST_OPTIONAL
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#include <boost/optional.hpp>
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#include <boost/optional/optional_io.hpp>
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#endif
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// From CLI/Version.hpp:
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// From CLI/Macros.hpp:
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// From CLI/Optional.hpp:
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namespace CLI
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{
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#if CLI11_STD_OPTIONAL
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template<typename T>
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std::istream& operator>>(std::istream& in, std::optional<T>& val)
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{
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T v;
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in >> v;
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val = v;
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return in;
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}
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#endif
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#if CLI11_EXPERIMENTAL_OPTIONAL
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template<typename T>
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std::istream& operator>>(std::istream& in, std::experimental::optional<T>& val)
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{
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T v;
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in >> v;
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val = v;
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return in;
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}
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#endif
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#if CLI11_BOOST_OPTIONAL
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template<typename T>
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std::istream& operator>>(std::istream& in, boost::optional<T>& val)
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{
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T v;
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in >> v;
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val = v;
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return in;
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}
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#endif
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// Export the best optional to the CLI namespace
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#if CLI11_STD_OPTIONAL
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using std::optional;
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#elif CLI11_EXPERIMENTAL_OPTIONAL
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using std::experimental::optional;
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#elif CLI11_BOOST_OPTIONAL
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using boost::optional;
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#endif
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// This is true if any optional is found
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#if CLI11_STD_OPTIONAL || CLI11_EXPERIMENTAL_OPTIONAL || CLI11_BOOST_OPTIONAL
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#define CLI11_OPTIONAL 1
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#endif
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} // namespace CLI
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// From CLI/StringTools.hpp:
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namespace CLI
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{
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/// Include the items in this namespace to get free conversion of enums to/from streams.
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/// (This is available inside CLI as well, so CLI11 will use this without a using statement).
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namespace enums
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{
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/// output streaming for enumerations
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template<typename T, typename = typename std::enable_if<std::is_enum<T>::value>::type>
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std::ostream& operator<<(std::ostream& in, const T& item)
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{
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// make sure this is out of the detail namespace otherwise it won't be found when needed
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return in << static_cast<typename std::underlying_type<T>::type>(item);
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}
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/// input streaming for enumerations
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template<typename T, typename = typename std::enable_if<std::is_enum<T>::value>::type>
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std::istream& operator>>(std::istream& in, T& item)
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{
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typename std::underlying_type<T>::type i;
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in >> i;
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item = static_cast<T>(i);
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return in;
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}
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} // namespace enums
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/// Export to CLI namespace
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using namespace enums;
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namespace detail
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{
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// Based on http://stackoverflow.com/questions/236129/split-a-string-in-c
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/// Split a string by a delim
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inline std::vector<std::string> split(const std::string& s, char delim)
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{
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std::vector<std::string> elems;
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// Check to see if empty string, give consistent result
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if (s.empty())
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elems.emplace_back();
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else
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{
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std::stringstream ss;
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ss.str(s);
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std::string item;
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while (std::getline(ss, item, delim))
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{
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elems.push_back(item);
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}
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}
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return elems;
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}
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/// simple utility to convert various types to a string
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template<typename T>
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inline std::string as_string(const T& v)
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{
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std::ostringstream s;
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s << v;
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return s.str();
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}
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// if the data type is already a string just forward it
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template<typename T, typename = typename std::enable_if<std::is_constructible<std::string, T>::value>::type>
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inline auto as_string(T&& v) -> decltype(std::forward<T>(v))
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{
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return std::forward<T>(v);
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}
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/// Simple function to join a string
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template<typename T>
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std::string join(const T& v, std::string delim = ",")
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{
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std::ostringstream s;
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auto beg = std::begin(v);
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auto end = std::end(v);
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if (beg != end)
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s << *beg++;
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while (beg != end)
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{
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s << delim << *beg++;
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}
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return s.str();
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}
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/// Simple function to join a string from processed elements
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template<typename T,
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typename Callable,
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typename = typename std::enable_if<!std::is_constructible<std::string, Callable>::value>::type>
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std::string join(const T& v, Callable func, std::string delim = ",")
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{
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std::ostringstream s;
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auto beg = std::begin(v);
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auto end = std::end(v);
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if (beg != end)
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s << func(*beg++);
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while (beg != end)
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{
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s << delim << func(*beg++);
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}
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return s.str();
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}
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/// Join a string in reverse order
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template<typename T>
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std::string rjoin(const T& v, std::string delim = ",")
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{
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std::ostringstream s;
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for (size_t start = 0; start < v.size(); start++)
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{
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if (start > 0)
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s << delim;
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s << v[v.size() - start - 1];
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}
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return s.str();
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}
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// Based roughly on http://stackoverflow.com/questions/25829143/c-trim-whitespace-from-a-string
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/// Trim whitespace from left of string
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inline std::string& ltrim(std::string& str)
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{
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auto it = std::find_if(str.begin(), str.end(), [](char ch) { return !std::isspace<char>(ch, std::locale()); });
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str.erase(str.begin(), it);
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return str;
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}
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/// Trim anything from left of string
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inline std::string& ltrim(std::string& str, const std::string& filter)
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{
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auto it = std::find_if(str.begin(), str.end(), [&filter](char ch) { return filter.find(ch) == std::string::npos; });
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str.erase(str.begin(), it);
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return str;
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}
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/// Trim whitespace from right of string
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inline std::string& rtrim(std::string& str)
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{
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auto it = std::find_if(str.rbegin(), str.rend(), [](char ch) { return !std::isspace<char>(ch, std::locale()); });
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str.erase(it.base(), str.end());
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return str;
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}
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/// Trim anything from right of string
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inline std::string& rtrim(std::string& str, const std::string& filter)
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{
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auto it =
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std::find_if(str.rbegin(), str.rend(), [&filter](char ch) { return filter.find(ch) == std::string::npos; });
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str.erase(it.base(), str.end());
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return str;
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}
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/// Trim whitespace from string
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inline std::string& trim(std::string& str) { return ltrim(rtrim(str)); }
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/// Trim anything from string
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inline std::string& trim(std::string& str, const std::string filter) { return ltrim(rtrim(str, filter), filter); }
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/// Make a copy of the string and then trim it
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inline std::string trim_copy(const std::string& str)
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{
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std::string s = str;
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return trim(s);
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}
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/// Make a copy of the string and then trim it, any filter string can be used (any char in string is filtered)
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inline std::string trim_copy(const std::string& str, const std::string& filter)
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{
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std::string s = str;
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return trim(s, filter);
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}
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/// Print a two part "help" string
|
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inline std::ostream& format_help(std::ostream& out, std::string name, std::string description, size_t wid)
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{
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name = " " + name;
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out << std::setw(static_cast<int>(wid)) << std::left << name;
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if (!description.empty())
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{
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if (name.length() >= wid)
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out << "\n"
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<< std::setw(static_cast<int>(wid)) << "";
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for (const char c : description)
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{
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out.put(c);
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if (c == '\n')
|
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{
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out << std::setw(static_cast<int>(wid)) << "";
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}
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}
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}
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out << "\n";
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return out;
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}
|
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/// Verify the first character of an option
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template<typename T>
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bool valid_first_char(T c)
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{
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return std::isalnum(c, std::locale()) || c == '_' || c == '?' || c == '@';
|
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}
|
||
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|
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/// Verify following characters of an option
|
||
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template<typename T>
|
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bool valid_later_char(T c)
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{
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return valid_first_char(c) || c == '.' || c == '-';
|
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}
|
||
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/// Verify an option name
|
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inline bool valid_name_string(const std::string& str)
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{
|
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if (str.empty() || !valid_first_char(str[0]))
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return false;
|
||
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for (auto c : str.substr(1))
|
||
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if (!valid_later_char(c))
|
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return false;
|
||
|
return true;
|
||
|
}
|
||
|
|
||
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/// Verify that str consists of letters only
|
||
|
inline bool isalpha(const std::string& str)
|
||
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{
|
||
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return std::all_of(str.begin(), str.end(), [](char c) { return std::isalpha(c, std::locale()); });
|
||
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}
|
||
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/// Return a lower case version of a string
|
||
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inline std::string to_lower(std::string str)
|
||
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{
|
||
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std::transform(std::begin(str), std::end(str), std::begin(str), [](const std::string::value_type& x) {
|
||
|
return std::tolower(x, std::locale());
|
||
|
});
|
||
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return str;
|
||
|
}
|
||
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|
||
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/// remove underscores from a string
|
||
|
inline std::string remove_underscore(std::string str)
|
||
|
{
|
||
|
str.erase(std::remove(std::begin(str), std::end(str), '_'), std::end(str));
|
||
|
return str;
|
||
|
}
|
||
|
|
||
|
/// Find and replace a substring with another substring
|
||
|
inline std::string find_and_replace(std::string str, std::string from, std::string to)
|
||
|
{
|
||
|
size_t start_pos = 0;
|
||
|
|
||
|
while ((start_pos = str.find(from, start_pos)) != std::string::npos)
|
||
|
{
|
||
|
str.replace(start_pos, from.length(), to);
|
||
|
start_pos += to.length();
|
||
|
}
|
||
|
|
||
|
return str;
|
||
|
}
|
||
|
|
||
|
/// check if the flag definitions has possible false flags
|
||
|
inline bool has_default_flag_values(const std::string& flags)
|
||
|
{
|
||
|
return (flags.find_first_of("{!") != std::string::npos);
|
||
|
}
|
||
|
|
||
|
inline void remove_default_flag_values(std::string& flags)
|
||
|
{
|
||
|
auto loc = flags.find_first_of('{');
|
||
|
while (loc != std::string::npos)
|
||
|
{
|
||
|
auto finish = flags.find_first_of("},", loc + 1);
|
||
|
if ((finish != std::string::npos) && (flags[finish] == '}'))
|
||
|
{
|
||
|
flags.erase(flags.begin() + static_cast<std::ptrdiff_t>(loc),
|
||
|
flags.begin() + static_cast<std::ptrdiff_t>(finish) + 1);
|
||
|
}
|
||
|
loc = flags.find_first_of('{', loc + 1);
|
||
|
}
|
||
|
flags.erase(std::remove(flags.begin(), flags.end(), '!'), flags.end());
|
||
|
}
|
||
|
|
||
|
/// Check if a string is a member of a list of strings and optionally ignore case or ignore underscores
|
||
|
inline std::ptrdiff_t find_member(std::string name,
|
||
|
const std::vector<std::string> names,
|
||
|
bool ignore_case = false,
|
||
|
bool ignore_underscore = false)
|
||
|
{
|
||
|
auto it = std::end(names);
|
||
|
if (ignore_case)
|
||
|
{
|
||
|
if (ignore_underscore)
|
||
|
{
|
||
|
name = detail::to_lower(detail::remove_underscore(name));
|
||
|
it = std::find_if(std::begin(names), std::end(names), [&name](std::string local_name) {
|
||
|
return detail::to_lower(detail::remove_underscore(local_name)) == name;
|
||
|
});
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
name = detail::to_lower(name);
|
||
|
it = std::find_if(std::begin(names), std::end(names), [&name](std::string local_name) {
|
||
|
return detail::to_lower(local_name) == name;
|
||
|
});
|
||
|
}
|
||
|
}
|
||
|
else if (ignore_underscore)
|
||
|
{
|
||
|
name = detail::remove_underscore(name);
|
||
|
it = std::find_if(std::begin(names), std::end(names), [&name](std::string local_name) {
|
||
|
return detail::remove_underscore(local_name) == name;
|
||
|
});
|
||
|
}
|
||
|
else
|
||
|
it = std::find(std::begin(names), std::end(names), name);
|
||
|
|
||
|
return (it != std::end(names)) ? (it - std::begin(names)) : (-1);
|
||
|
}
|
||
|
|
||
|
/// Find a trigger string and call a modify callable function that takes the current string and starting position of the
|
||
|
/// trigger and returns the position in the string to search for the next trigger string
|
||
|
template<typename Callable>
|
||
|
inline std::string find_and_modify(std::string str, std::string trigger, Callable modify)
|
||
|
{
|
||
|
size_t start_pos = 0;
|
||
|
while ((start_pos = str.find(trigger, start_pos)) != std::string::npos)
|
||
|
{
|
||
|
start_pos = modify(str, start_pos);
|
||
|
}
|
||
|
return str;
|
||
|
}
|
||
|
|
||
|
/// Split a string '"one two" "three"' into 'one two', 'three'
|
||
|
/// Quote characters can be ` ' or "
|
||
|
inline std::vector<std::string> split_up(std::string str)
|
||
|
{
|
||
|
const std::string delims("\'\"`");
|
||
|
auto find_ws = [](char ch) { return std::isspace<char>(ch, std::locale()); };
|
||
|
trim(str);
|
||
|
|
||
|
std::vector<std::string> output;
|
||
|
bool embeddedQuote = false;
|
||
|
char keyChar = ' ';
|
||
|
while (!str.empty())
|
||
|
{
|
||
|
if (delims.find_first_of(str[0]) != std::string::npos)
|
||
|
{
|
||
|
keyChar = str[0];
|
||
|
auto end = str.find_first_of(keyChar, 1);
|
||
|
while ((end != std::string::npos) && (str[end - 1] == '\\'))
|
||
|
{ // deal with escaped quotes
|
||
|
end = str.find_first_of(keyChar, end + 1);
|
||
|
embeddedQuote = true;
|
||
|
}
|
||
|
if (end != std::string::npos)
|
||
|
{
|
||
|
output.push_back(str.substr(1, end - 1));
|
||
|
str = str.substr(end + 1);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
output.push_back(str.substr(1));
|
||
|
str = "";
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
auto it = std::find_if(std::begin(str), std::end(str), find_ws);
|
||
|
if (it != std::end(str))
|
||
|
{
|
||
|
std::string value = std::string(str.begin(), it);
|
||
|
output.push_back(value);
|
||
|
str = std::string(it, str.end());
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
output.push_back(str);
|
||
|
str = "";
|
||
|
}
|
||
|
}
|
||
|
// transform any embedded quotes into the regular character
|
||
|
if (embeddedQuote)
|
||
|
{
|
||
|
output.back() = find_and_replace(output.back(), std::string("\\") + keyChar, std::string(1, keyChar));
|
||
|
embeddedQuote = false;
|
||
|
}
|
||
|
trim(str);
|
||
|
}
|
||
|
return output;
|
||
|
}
|
||
|
|
||
|
/// Add a leader to the beginning of all new lines (nothing is added
|
||
|
/// at the start of the first line). `"; "` would be for ini files
|
||
|
///
|
||
|
/// Can't use Regex, or this would be a subs.
|
||
|
inline std::string fix_newlines(std::string leader, std::string input)
|
||
|
{
|
||
|
std::string::size_type n = 0;
|
||
|
while (n != std::string::npos && n < input.size())
|
||
|
{
|
||
|
n = input.find('\n', n);
|
||
|
if (n != std::string::npos)
|
||
|
{
|
||
|
input = input.substr(0, n + 1) + leader + input.substr(n + 1);
|
||
|
n += leader.size();
|
||
|
}
|
||
|
}
|
||
|
return input;
|
||
|
}
|
||
|
|
||
|
/// This function detects an equal or colon followed by an escaped quote after an argument
|
||
|
/// then modifies the string to replace the equality with a space. This is needed
|
||
|
/// to allow the split up function to work properly and is intended to be used with the find_and_modify function
|
||
|
/// the return value is the offset+1 which is required by the find_and_modify function.
|
||
|
inline size_t escape_detect(std::string& str, size_t offset)
|
||
|
{
|
||
|
auto next = str[offset + 1];
|
||
|
if ((next == '\"') || (next == '\'') || (next == '`'))
|
||
|
{
|
||
|
auto astart = str.find_last_of("-/ \"\'`", offset - 1);
|
||
|
if (astart != std::string::npos)
|
||
|
{
|
||
|
if (str[astart] == ((str[offset] == '=') ? '-' : '/'))
|
||
|
str[offset] = ' '; // interpret this as a space so the split_up works properly
|
||
|
}
|
||
|
}
|
||
|
return offset + 1;
|
||
|
}
|
||
|
|
||
|
/// Add quotes if the string contains spaces
|
||
|
inline std::string& add_quotes_if_needed(std::string& str)
|
||
|
{
|
||
|
if ((str.front() != '"' && str.front() != '\'') || str.front() != str.back())
|
||
|
{
|
||
|
char quote = str.find('"') < str.find('\'') ? '\'' : '"';
|
||
|
if (str.find(' ') != std::string::npos)
|
||
|
{
|
||
|
str.insert(0, 1, quote);
|
||
|
str.append(1, quote);
|
||
|
}
|
||
|
}
|
||
|
return str;
|
||
|
}
|
||
|
|
||
|
} // namespace detail
|
||
|
|
||
|
} // namespace CLI
|
||
|
|
||
|
// From CLI/Error.hpp:
|
||
|
|
||
|
namespace CLI
|
||
|
{
|
||
|
// Use one of these on all error classes.
|
||
|
// These are temporary and are undef'd at the end of this file.
|
||
|
#define CLI11_ERROR_DEF(parent, name) \
|
||
|
protected: \
|
||
|
name(std::string ename, std::string msg, int exit_code) : parent(std::move(ename), std::move(msg), exit_code) {} \
|
||
|
name(std::string ename, std::string msg, ExitCodes exit_code) : parent(std::move(ename), std::move(msg), exit_code) {} \
|
||
|
\
|
||
|
public: \
|
||
|
name(std::string msg, ExitCodes exit_code) : parent(#name, std::move(msg), exit_code) {} \
|
||
|
name(std::string msg, int exit_code) : parent(#name, std::move(msg), exit_code) {}
|
||
|
|
||
|
// This is added after the one above if a class is used directly and builds its own message
|
||
|
#define CLI11_ERROR_SIMPLE(name) \
|
||
|
explicit name(std::string msg) : name(#name, msg, ExitCodes::name) {}
|
||
|
|
||
|
/// These codes are part of every error in CLI. They can be obtained from e using e.exit_code or as a quick shortcut,
|
||
|
/// int values from e.get_error_code().
|
||
|
enum class ExitCodes
|
||
|
{
|
||
|
Success = 0,
|
||
|
IncorrectConstruction = 100,
|
||
|
BadNameString,
|
||
|
OptionAlreadyAdded,
|
||
|
FileError,
|
||
|
ConversionError,
|
||
|
ValidationError,
|
||
|
RequiredError,
|
||
|
RequiresError,
|
||
|
ExcludesError,
|
||
|
ExtrasError,
|
||
|
ConfigError,
|
||
|
InvalidError,
|
||
|
HorribleError,
|
||
|
OptionNotFound,
|
||
|
ArgumentMismatch,
|
||
|
BaseClass = 127
|
||
|
};
|
||
|
|
||
|
// Error definitions
|
||
|
|
||
|
/// @defgroup error_group Errors
|
||
|
/// @brief Errors thrown by CLI11
|
||
|
///
|
||
|
/// These are the errors that can be thrown. Some of them, like CLI::Success, are not really errors.
|
||
|
/// @{
|
||
|
|
||
|
/// All errors derive from this one
|
||
|
class Error : public std::runtime_error
|
||
|
{
|
||
|
int actual_exit_code;
|
||
|
std::string error_name{ "Error" };
|
||
|
|
||
|
public:
|
||
|
int get_exit_code() const { return actual_exit_code; }
|
||
|
|
||
|
std::string get_name() const { return error_name; }
|
||
|
|
||
|
Error(std::string name, std::string msg, int exit_code = static_cast<int>(ExitCodes::BaseClass)) :
|
||
|
runtime_error(msg),
|
||
|
actual_exit_code(exit_code),
|
||
|
error_name(std::move(name)) {}
|
||
|
|
||
|
Error(std::string name, std::string msg, ExitCodes exit_code) :
|
||
|
Error(name, msg, static_cast<int>(exit_code)) {}
|
||
|
};
|
||
|
|
||
|
// Note: Using Error::Error constructors does not work on GCC 4.7
|
||
|
|
||
|
/// Construction errors (not in parsing)
|
||
|
class ConstructionError : public Error
|
||
|
{
|
||
|
CLI11_ERROR_DEF(Error, ConstructionError)
|
||
|
};
|
||
|
|
||
|
/// Thrown when an option is set to conflicting values (non-vector and multi args, for example)
|
||
|
class IncorrectConstruction : public ConstructionError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ConstructionError, IncorrectConstruction)
|
||
|
CLI11_ERROR_SIMPLE(IncorrectConstruction)
|
||
|
static IncorrectConstruction PositionalFlag(std::string name)
|
||
|
{
|
||
|
return IncorrectConstruction(name + ": Flags cannot be positional");
|
||
|
}
|
||
|
static IncorrectConstruction Set0Opt(std::string name)
|
||
|
{
|
||
|
return IncorrectConstruction(name + ": Cannot set 0 expected, use a flag instead");
|
||
|
}
|
||
|
static IncorrectConstruction SetFlag(std::string name)
|
||
|
{
|
||
|
return IncorrectConstruction(name + ": Cannot set an expected number for flags");
|
||
|
}
|
||
|
static IncorrectConstruction ChangeNotVector(std::string name)
|
||
|
{
|
||
|
return IncorrectConstruction(name + ": You can only change the expected arguments for vectors");
|
||
|
}
|
||
|
static IncorrectConstruction AfterMultiOpt(std::string name)
|
||
|
{
|
||
|
return IncorrectConstruction(
|
||
|
name + ": You can't change expected arguments after you've changed the multi option policy!");
|
||
|
}
|
||
|
static IncorrectConstruction MissingOption(std::string name)
|
||
|
{
|
||
|
return IncorrectConstruction("Option " + name + " is not defined");
|
||
|
}
|
||
|
static IncorrectConstruction MultiOptionPolicy(std::string name)
|
||
|
{
|
||
|
return IncorrectConstruction(name + ": multi_option_policy only works for flags and exact value options");
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Thrown on construction of a bad name
|
||
|
class BadNameString : public ConstructionError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ConstructionError, BadNameString)
|
||
|
CLI11_ERROR_SIMPLE(BadNameString)
|
||
|
static BadNameString OneCharName(std::string name) { return BadNameString("Invalid one char name: " + name); }
|
||
|
static BadNameString BadLongName(std::string name) { return BadNameString("Bad long name: " + name); }
|
||
|
static BadNameString DashesOnly(std::string name)
|
||
|
{
|
||
|
return BadNameString("Must have a name, not just dashes: " + name);
|
||
|
}
|
||
|
static BadNameString MultiPositionalNames(std::string name)
|
||
|
{
|
||
|
return BadNameString("Only one positional name allowed, remove: " + name);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Thrown when an option already exists
|
||
|
class OptionAlreadyAdded : public ConstructionError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ConstructionError, OptionAlreadyAdded)
|
||
|
explicit OptionAlreadyAdded(std::string name) :
|
||
|
OptionAlreadyAdded(name + " is already added", ExitCodes::OptionAlreadyAdded) {}
|
||
|
static OptionAlreadyAdded Requires(std::string name, std::string other)
|
||
|
{
|
||
|
return OptionAlreadyAdded(name + " requires " + other, ExitCodes::OptionAlreadyAdded);
|
||
|
}
|
||
|
static OptionAlreadyAdded Excludes(std::string name, std::string other)
|
||
|
{
|
||
|
return OptionAlreadyAdded(name + " excludes " + other, ExitCodes::OptionAlreadyAdded);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
// Parsing errors
|
||
|
|
||
|
/// Anything that can error in Parse
|
||
|
class ParseError : public Error
|
||
|
{
|
||
|
CLI11_ERROR_DEF(Error, ParseError)
|
||
|
};
|
||
|
|
||
|
// Not really "errors"
|
||
|
|
||
|
/// This is a successful completion on parsing, supposed to exit
|
||
|
class Success : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, Success)
|
||
|
Success() :
|
||
|
Success("Successfully completed, should be caught and quit", ExitCodes::Success) {}
|
||
|
};
|
||
|
|
||
|
/// -h or --help on command line
|
||
|
class CallForHelp : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, CallForHelp)
|
||
|
CallForHelp() :
|
||
|
CallForHelp("This should be caught in your main function, see examples", ExitCodes::Success) {}
|
||
|
};
|
||
|
|
||
|
/// Usually something like --help-all on command line
|
||
|
class CallForAllHelp : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, CallForAllHelp)
|
||
|
CallForAllHelp() :
|
||
|
CallForAllHelp("This should be caught in your main function, see examples", ExitCodes::Success) {}
|
||
|
};
|
||
|
|
||
|
/// Does not output a diagnostic in CLI11_PARSE, but allows to return from main() with a specific error code.
|
||
|
class RuntimeError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, RuntimeError)
|
||
|
explicit RuntimeError(int exit_code = 1) :
|
||
|
RuntimeError("Runtime error", exit_code) {}
|
||
|
};
|
||
|
|
||
|
/// Thrown when parsing an INI file and it is missing
|
||
|
class FileError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, FileError)
|
||
|
CLI11_ERROR_SIMPLE(FileError)
|
||
|
static FileError Missing(std::string name) { return FileError(name + " was not readable (missing?)"); }
|
||
|
};
|
||
|
|
||
|
/// Thrown when conversion call back fails, such as when an int fails to coerce to a string
|
||
|
class ConversionError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, ConversionError)
|
||
|
CLI11_ERROR_SIMPLE(ConversionError)
|
||
|
ConversionError(std::string member, std::string name) :
|
||
|
ConversionError("The value " + member + " is not an allowed value for " + name) {}
|
||
|
ConversionError(std::string name, std::vector<std::string> results) :
|
||
|
ConversionError("Could not convert: " + name + " = " + detail::join(results)) {}
|
||
|
static ConversionError TooManyInputsFlag(std::string name)
|
||
|
{
|
||
|
return ConversionError(name + ": too many inputs for a flag");
|
||
|
}
|
||
|
static ConversionError TrueFalse(std::string name)
|
||
|
{
|
||
|
return ConversionError(name + ": Should be true/false or a number");
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Thrown when validation of results fails
|
||
|
class ValidationError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, ValidationError)
|
||
|
CLI11_ERROR_SIMPLE(ValidationError)
|
||
|
explicit ValidationError(std::string name, std::string msg) :
|
||
|
ValidationError(name + ": " + msg) {}
|
||
|
};
|
||
|
|
||
|
/// Thrown when a required option is missing
|
||
|
class RequiredError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, RequiredError)
|
||
|
explicit RequiredError(std::string name) :
|
||
|
RequiredError(name + " is required", ExitCodes::RequiredError) {}
|
||
|
static RequiredError Subcommand(size_t min_subcom)
|
||
|
{
|
||
|
if (min_subcom == 1)
|
||
|
return RequiredError("A subcommand");
|
||
|
else
|
||
|
return RequiredError("Requires at least " + std::to_string(min_subcom) + " subcommands",
|
||
|
ExitCodes::RequiredError);
|
||
|
}
|
||
|
static RequiredError Option(size_t min_option, size_t max_option, size_t used, const std::string& option_list)
|
||
|
{
|
||
|
if ((min_option == 1) && (max_option == 1) && (used == 0))
|
||
|
return RequiredError("Exactly 1 option from [" + option_list + "]");
|
||
|
else if ((min_option == 1) && (max_option == 1) && (used > 1))
|
||
|
return RequiredError("Exactly 1 option from [" + option_list + "] is required and " + std::to_string(used) +
|
||
|
" were given",
|
||
|
ExitCodes::RequiredError);
|
||
|
else if ((min_option == 1) && (used == 0))
|
||
|
return RequiredError("At least 1 option from [" + option_list + "]");
|
||
|
else if (used < min_option)
|
||
|
return RequiredError("Requires at least " + std::to_string(min_option) + " options used and only " +
|
||
|
std::to_string(used) + "were given from [" + option_list + "]",
|
||
|
ExitCodes::RequiredError);
|
||
|
else if (max_option == 1)
|
||
|
return RequiredError("Requires at most 1 options be given from [" + option_list + "]",
|
||
|
ExitCodes::RequiredError);
|
||
|
else
|
||
|
return RequiredError("Requires at most " + std::to_string(max_option) + " options be used and " +
|
||
|
std::to_string(used) + "were given from [" + option_list + "]",
|
||
|
ExitCodes::RequiredError);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Thrown when the wrong number of arguments has been received
|
||
|
class ArgumentMismatch : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, ArgumentMismatch)
|
||
|
CLI11_ERROR_SIMPLE(ArgumentMismatch)
|
||
|
ArgumentMismatch(std::string name, int expected, size_t recieved) :
|
||
|
ArgumentMismatch(expected > 0 ? ("Expected exactly " + std::to_string(expected) + " arguments to " + name +
|
||
|
", got " + std::to_string(recieved)) :
|
||
|
("Expected at least " + std::to_string(-expected) + " arguments to " + name +
|
||
|
", got " + std::to_string(recieved)),
|
||
|
ExitCodes::ArgumentMismatch) {}
|
||
|
|
||
|
static ArgumentMismatch AtLeast(std::string name, int num)
|
||
|
{
|
||
|
return ArgumentMismatch(name + ": At least " + std::to_string(num) + " required");
|
||
|
}
|
||
|
static ArgumentMismatch TypedAtLeast(std::string name, int num, std::string type)
|
||
|
{
|
||
|
return ArgumentMismatch(name + ": " + std::to_string(num) + " required " + type + " missing");
|
||
|
}
|
||
|
static ArgumentMismatch FlagOverride(std::string name)
|
||
|
{
|
||
|
return ArgumentMismatch(name + " was given a disallowed flag override");
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Thrown when a requires option is missing
|
||
|
class RequiresError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, RequiresError)
|
||
|
RequiresError(std::string curname, std::string subname) :
|
||
|
RequiresError(curname + " requires " + subname, ExitCodes::RequiresError) {}
|
||
|
};
|
||
|
|
||
|
/// Thrown when an excludes option is present
|
||
|
class ExcludesError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, ExcludesError)
|
||
|
ExcludesError(std::string curname, std::string subname) :
|
||
|
ExcludesError(curname + " excludes " + subname, ExitCodes::ExcludesError) {}
|
||
|
};
|
||
|
|
||
|
/// Thrown when too many positionals or options are found
|
||
|
class ExtrasError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, ExtrasError)
|
||
|
explicit ExtrasError(std::vector<std::string> args) :
|
||
|
ExtrasError((args.size() > 1 ? "The following arguments were not expected: " : "The following argument was not expected: ") +
|
||
|
detail::rjoin(args, " "),
|
||
|
ExitCodes::ExtrasError) {}
|
||
|
};
|
||
|
|
||
|
/// Thrown when extra values are found in an INI file
|
||
|
class ConfigError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, ConfigError)
|
||
|
CLI11_ERROR_SIMPLE(ConfigError)
|
||
|
static ConfigError Extras(std::string item) { return ConfigError("INI was not able to parse " + item); }
|
||
|
static ConfigError NotConfigurable(std::string item)
|
||
|
{
|
||
|
return ConfigError(item + ": This option is not allowed in a configuration file");
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Thrown when validation fails before parsing
|
||
|
class InvalidError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, InvalidError)
|
||
|
explicit InvalidError(std::string name) :
|
||
|
InvalidError(name + ": Too many positional arguments with unlimited expected args", ExitCodes::InvalidError)
|
||
|
{
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// This is just a safety check to verify selection and parsing match - you should not ever see it
|
||
|
/// Strings are directly added to this error, but again, it should never be seen.
|
||
|
class HorribleError : public ParseError
|
||
|
{
|
||
|
CLI11_ERROR_DEF(ParseError, HorribleError)
|
||
|
CLI11_ERROR_SIMPLE(HorribleError)
|
||
|
};
|
||
|
|
||
|
// After parsing
|
||
|
|
||
|
/// Thrown when counting a non-existent option
|
||
|
class OptionNotFound : public Error
|
||
|
{
|
||
|
CLI11_ERROR_DEF(Error, OptionNotFound)
|
||
|
explicit OptionNotFound(std::string name) :
|
||
|
OptionNotFound(name + " not found", ExitCodes::OptionNotFound) {}
|
||
|
};
|
||
|
|
||
|
#undef CLI11_ERROR_DEF
|
||
|
#undef CLI11_ERROR_SIMPLE
|
||
|
|
||
|
/// @}
|
||
|
|
||
|
} // namespace CLI
|
||
|
|
||
|
// From CLI/TypeTools.hpp:
|
||
|
|
||
|
namespace CLI
|
||
|
{
|
||
|
// Type tools
|
||
|
|
||
|
// Utilities for type enabling
|
||
|
namespace detail
|
||
|
{
|
||
|
// Based generally on https://rmf.io/cxx11/almost-static-if
|
||
|
/// Simple empty scoped class
|
||
|
enum class enabler
|
||
|
{
|
||
|
};
|
||
|
|
||
|
/// An instance to use in EnableIf
|
||
|
constexpr enabler dummy = {};
|
||
|
} // namespace detail
|
||
|
|
||
|
/// A copy of enable_if_t from C++14, compatible with C++11.
|
||
|
///
|
||
|
/// We could check to see if C++14 is being used, but it does not hurt to redefine this
|
||
|
/// (even Google does this: https://github.com/google/skia/blob/master/include/private/SkTLogic.h)
|
||
|
/// It is not in the std namespace anyway, so no harm done.
|
||
|
template<bool B, class T = void>
|
||
|
using enable_if_t = typename std::enable_if<B, T>::type;
|
||
|
|
||
|
/// A copy of std::void_t from C++17 (helper for C++11 and C++14)
|
||
|
template<typename... Ts>
|
||
|
struct make_void
|
||
|
{
|
||
|
using type = void;
|
||
|
};
|
||
|
|
||
|
/// A copy of std::void_t from C++17 - same reasoning as enable_if_t, it does not hurt to redefine
|
||
|
template<typename... Ts>
|
||
|
using void_t = typename make_void<Ts...>::type;
|
||
|
|
||
|
/// A copy of std::conditional_t from C++14 - same reasoning as enable_if_t, it does not hurt to redefine
|
||
|
template<bool B, class T, class F>
|
||
|
using conditional_t = typename std::conditional<B, T, F>::type;
|
||
|
|
||
|
/// Check to see if something is a vector (fail check by default)
|
||
|
template<typename T>
|
||
|
struct is_vector : std::false_type
|
||
|
{
|
||
|
};
|
||
|
|
||
|
/// Check to see if something is a vector (true if actually a vector)
|
||
|
template<class T, class A>
|
||
|
struct is_vector<std::vector<T, A>> : std::true_type
|
||
|
{
|
||
|
};
|
||
|
|
||
|
/// Check to see if something is bool (fail check by default)
|
||
|
template<typename T>
|
||
|
struct is_bool : std::false_type
|
||
|
{
|
||
|
};
|
||
|
|
||
|
/// Check to see if something is bool (true if actually a bool)
|
||
|
template<>
|
||
|
struct is_bool<bool> : std::true_type
|
||
|
{
|
||
|
};
|
||
|
|
||
|
/// Check to see if something is a shared pointer
|
||
|
template<typename T>
|
||
|
struct is_shared_ptr : std::false_type
|
||
|
{
|
||
|
};
|
||
|
|
||
|
/// Check to see if something is a shared pointer (True if really a shared pointer)
|
||
|
template<typename T>
|
||
|
struct is_shared_ptr<std::shared_ptr<T>> : std::true_type
|
||
|
{
|
||
|
};
|
||
|
|
||
|
/// Check to see if something is a shared pointer (True if really a shared pointer)
|
||
|
template<typename T>
|
||
|
struct is_shared_ptr<const std::shared_ptr<T>> : std::true_type
|
||
|
{
|
||
|
};
|
||
|
|
||
|
/// Check to see if something is copyable pointer
|
||
|
template<typename T>
|
||
|
struct is_copyable_ptr
|
||
|
{
|
||
|
static bool const value = is_shared_ptr<T>::value || std::is_pointer<T>::value;
|
||
|
};
|
||
|
|
||
|
/// This can be specialized to override the type deduction for IsMember.
|
||
|
template<typename T>
|
||
|
struct IsMemberType
|
||
|
{
|
||
|
using type = T;
|
||
|
};
|
||
|
|
||
|
/// The main custom type needed here is const char * should be a string.
|
||
|
template<>
|
||
|
struct IsMemberType<const char*>
|
||
|
{
|
||
|
using type = std::string;
|
||
|
};
|
||
|
|
||
|
namespace detail
|
||
|
{
|
||
|
// These are utilities for IsMember
|
||
|
|
||
|
/// Handy helper to access the element_type generically. This is not part of is_copyable_ptr because it requires that
|
||
|
/// pointer_traits<T> be valid.
|
||
|
template<typename T>
|
||
|
struct element_type
|
||
|
{
|
||
|
using type =
|
||
|
typename std::conditional<is_copyable_ptr<T>::value, typename std::pointer_traits<T>::element_type, T>::type;
|
||
|
};
|
||
|
|
||
|
/// Combination of the element type and value type - remove pointer (including smart pointers) and get the value_type of
|
||
|
/// the container
|
||
|
template<typename T>
|
||
|
struct element_value_type
|
||
|
{
|
||
|
using type = typename element_type<T>::type::value_type;
|
||
|
};
|
||
|
|
||
|
/// Adaptor for set-like structure: This just wraps a normal container in a few utilities that do almost nothing.
|
||
|
template<typename T, typename _ = void>
|
||
|
struct pair_adaptor : std::false_type
|
||
|
{
|
||
|
using value_type = typename T::value_type;
|
||
|
using first_type = typename std::remove_const<value_type>::type;
|
||
|
using second_type = typename std::remove_const<value_type>::type;
|
||
|
|
||
|
/// Get the first value (really just the underlying value)
|
||
|
template<typename Q>
|
||
|
static auto first(Q&& pair_value) -> decltype(std::forward<Q>(pair_value))
|
||
|
{
|
||
|
return std::forward<Q>(pair_value);
|
||
|
}
|
||
|
/// Get the second value (really just the underlying value)
|
||
|
template<typename Q>
|
||
|
static auto second(Q&& pair_value) -> decltype(std::forward<Q>(pair_value))
|
||
|
{
|
||
|
return std::forward<Q>(pair_value);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Adaptor for map-like structure (true version, must have key_type and mapped_type).
|
||
|
/// This wraps a mapped container in a few utilities access it in a general way.
|
||
|
template<typename T>
|
||
|
struct pair_adaptor<
|
||
|
T,
|
||
|
conditional_t<false, void_t<typename T::value_type::first_type, typename T::value_type::second_type>, void>> : std::true_type
|
||
|
{
|
||
|
using value_type = typename T::value_type;
|
||
|
using first_type = typename std::remove_const<typename value_type::first_type>::type;
|
||
|
using second_type = typename std::remove_const<typename value_type::second_type>::type;
|
||
|
|
||
|
/// Get the first value (really just the underlying value)
|
||
|
template<typename Q>
|
||
|
static auto first(Q&& pair_value) -> decltype(std::get<0>(std::forward<Q>(pair_value)))
|
||
|
{
|
||
|
return std::get<0>(std::forward<Q>(pair_value));
|
||
|
}
|
||
|
/// Get the second value (really just the underlying value)
|
||
|
template<typename Q>
|
||
|
static auto second(Q&& pair_value) -> decltype(std::get<1>(std::forward<Q>(pair_value)))
|
||
|
{
|
||
|
return std::get<1>(std::forward<Q>(pair_value));
|
||
|
}
|
||
|
};
|
||
|
|
||
|
// Check for streamability
|
||
|
// Based on https://stackoverflow.com/questions/22758291/how-can-i-detect-if-a-type-can-be-streamed-to-an-stdostream
|
||
|
|
||
|
template<typename S, typename T>
|
||
|
class is_streamable
|
||
|
{
|
||
|
template<typename SS, typename TT>
|
||
|
static auto test(int) -> decltype(std::declval<SS&>() << std::declval<TT>(), std::true_type());
|
||
|
|
||
|
template<typename, typename>
|
||
|
static auto test(...) -> std::false_type;
|
||
|
|
||
|
public:
|
||
|
static const bool value = decltype(test<S, T>(0))::value;
|
||
|
};
|
||
|
|
||
|
/// Convert an object to a string (directly forward if this can become a string)
|
||
|
template<typename T, enable_if_t<std::is_constructible<std::string, T>::value, detail::enabler> = detail::dummy>
|
||
|
auto to_string(T&& value) -> decltype(std::forward<T>(value))
|
||
|
{
|
||
|
return std::forward<T>(value);
|
||
|
}
|
||
|
|
||
|
/// Convert an object to a string (streaming must be supported for that type)
|
||
|
template<typename T,
|
||
|
enable_if_t<!std::is_constructible<std::string, T>::value && is_streamable<std::stringstream, T>::value,
|
||
|
detail::enabler> = detail::dummy>
|
||
|
std::string to_string(T&& value)
|
||
|
{
|
||
|
std::stringstream stream;
|
||
|
stream << value;
|
||
|
return stream.str();
|
||
|
}
|
||
|
|
||
|
/// If conversion is not supported, return an empty string (streaming is not supported for that type)
|
||
|
template<typename T,
|
||
|
enable_if_t<!std::is_constructible<std::string, T>::value && !is_streamable<std::stringstream, T>::value,
|
||
|
detail::enabler> = detail::dummy>
|
||
|
std::string to_string(T&&)
|
||
|
{
|
||
|
return std::string{};
|
||
|
}
|
||
|
|
||
|
// Type name print
|
||
|
|
||
|
/// Was going to be based on
|
||
|
/// http://stackoverflow.com/questions/1055452/c-get-name-of-type-in-template
|
||
|
/// But this is cleaner and works better in this case
|
||
|
|
||
|
template<typename T,
|
||
|
enable_if_t<std::is_integral<T>::value && std::is_signed<T>::value, detail::enabler> = detail::dummy>
|
||
|
constexpr const char* type_name()
|
||
|
{
|
||
|
return "INT";
|
||
|
}
|
||
|
|
||
|
template<typename T,
|
||
|
enable_if_t<std::is_integral<T>::value && std::is_unsigned<T>::value, detail::enabler> = detail::dummy>
|
||
|
constexpr const char* type_name()
|
||
|
{
|
||
|
return "UINT";
|
||
|
}
|
||
|
|
||
|
template<typename T, enable_if_t<std::is_floating_point<T>::value, detail::enabler> = detail::dummy>
|
||
|
constexpr const char* type_name()
|
||
|
{
|
||
|
return "FLOAT";
|
||
|
}
|
||
|
|
||
|
/// This one should not be used, since vector types print the internal type
|
||
|
template<typename T, enable_if_t<is_vector<T>::value, detail::enabler> = detail::dummy>
|
||
|
constexpr const char* type_name()
|
||
|
{
|
||
|
return "VECTOR";
|
||
|
}
|
||
|
/// Print name for enumeration types
|
||
|
template<typename T, enable_if_t<std::is_enum<T>::value, detail::enabler> = detail::dummy>
|
||
|
constexpr const char* type_name()
|
||
|
{
|
||
|
return "ENUM";
|
||
|
}
|
||
|
|
||
|
/// Print for all other types
|
||
|
template<typename T,
|
||
|
enable_if_t<!std::is_floating_point<T>::value && !std::is_integral<T>::value && !is_vector<T>::value &&
|
||
|
!std::is_enum<T>::value,
|
||
|
detail::enabler> = detail::dummy>
|
||
|
constexpr const char* type_name()
|
||
|
{
|
||
|
return "TEXT";
|
||
|
}
|
||
|
|
||
|
// Lexical cast
|
||
|
|
||
|
/// Convert a flag into an integer value typically binary flags
|
||
|
inline int64_t to_flag_value(std::string val)
|
||
|
{
|
||
|
static const std::string trueString("true");
|
||
|
static const std::string falseString("false");
|
||
|
if (val == trueString)
|
||
|
{
|
||
|
return 1;
|
||
|
}
|
||
|
if (val == falseString)
|
||
|
{
|
||
|
return -1;
|
||
|
}
|
||
|
val = detail::to_lower(val);
|
||
|
int64_t ret;
|
||
|
if (val.size() == 1)
|
||
|
{
|
||
|
switch (val[0])
|
||
|
{
|
||
|
case '0':
|
||
|
case 'f':
|
||
|
case 'n':
|
||
|
case '-':
|
||
|
ret = -1;
|
||
|
break;
|
||
|
case '1':
|
||
|
case 't':
|
||
|
case 'y':
|
||
|
case '+':
|
||
|
ret = 1;
|
||
|
break;
|
||
|
case '2':
|
||
|
case '3':
|
||
|
case '4':
|
||
|
case '5':
|
||
|
case '6':
|
||
|
case '7':
|
||
|
case '8':
|
||
|
case '9':
|
||
|
ret = val[0] - '0';
|
||
|
break;
|
||
|
default:
|
||
|
throw std::invalid_argument("unrecognized character");
|
||
|
}
|
||
|
return ret;
|
||
|
}
|
||
|
if (val == trueString || val == "on" || val == "yes" || val == "enable")
|
||
|
{
|
||
|
ret = 1;
|
||
|
}
|
||
|
else if (val == falseString || val == "off" || val == "no" || val == "disable")
|
||
|
{
|
||
|
ret = -1;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
ret = std::stoll(val);
|
||
|
}
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
/// Signed integers
|
||
|
template<
|
||
|
typename T,
|
||
|
enable_if_t<std::is_integral<T>::value && std::is_signed<T>::value && !is_bool<T>::value && !std::is_enum<T>::value,
|
||
|
detail::enabler> = detail::dummy>
|
||
|
bool lexical_cast(std::string input, T& output)
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
size_t n = 0;
|
||
|
long long output_ll = std::stoll(input, &n, 0);
|
||
|
output = static_cast<T>(output_ll);
|
||
|
return n == input.size() && static_cast<long long>(output) == output_ll;
|
||
|
}
|
||
|
catch (const std::invalid_argument&)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
catch (const std::out_of_range&)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Unsigned integers
|
||
|
template<typename T,
|
||
|
enable_if_t<std::is_integral<T>::value && std::is_unsigned<T>::value && !is_bool<T>::value, detail::enabler> =
|
||
|
detail::dummy>
|
||
|
bool lexical_cast(std::string input, T& output)
|
||
|
{
|
||
|
if (!input.empty() && input.front() == '-')
|
||
|
return false; // std::stoull happily converts negative values to junk without any errors.
|
||
|
|
||
|
try
|
||
|
{
|
||
|
size_t n = 0;
|
||
|
unsigned long long output_ll = std::stoull(input, &n, 0);
|
||
|
output = static_cast<T>(output_ll);
|
||
|
return n == input.size() && static_cast<unsigned long long>(output) == output_ll;
|
||
|
}
|
||
|
catch (const std::invalid_argument&)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
catch (const std::out_of_range&)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Boolean values
|
||
|
template<typename T, enable_if_t<is_bool<T>::value, detail::enabler> = detail::dummy>
|
||
|
bool lexical_cast(std::string input, T& output)
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
auto out = to_flag_value(input);
|
||
|
output = (out > 0);
|
||
|
return true;
|
||
|
}
|
||
|
catch (const std::invalid_argument&)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Floats
|
||
|
template<typename T, enable_if_t<std::is_floating_point<T>::value, detail::enabler> = detail::dummy>
|
||
|
bool lexical_cast(std::string input, T& output)
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
size_t n = 0;
|
||
|
output = static_cast<T>(std::stold(input, &n));
|
||
|
return n == input.size();
|
||
|
}
|
||
|
catch (const std::invalid_argument&)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
catch (const std::out_of_range&)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// String and similar
|
||
|
template<typename T,
|
||
|
enable_if_t<!std::is_floating_point<T>::value && !std::is_integral<T>::value &&
|
||
|
std::is_assignable<T&, std::string>::value,
|
||
|
detail::enabler> = detail::dummy>
|
||
|
bool lexical_cast(std::string input, T& output)
|
||
|
{
|
||
|
output = input;
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
/// Enumerations
|
||
|
template<typename T, enable_if_t<std::is_enum<T>::value, detail::enabler> = detail::dummy>
|
||
|
bool lexical_cast(std::string input, T& output)
|
||
|
{
|
||
|
typename std::underlying_type<T>::type val;
|
||
|
bool retval = detail::lexical_cast(input, val);
|
||
|
if (!retval)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
output = static_cast<T>(val);
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
/// Non-string parsable
|
||
|
template<typename T,
|
||
|
enable_if_t<!std::is_floating_point<T>::value && !std::is_integral<T>::value &&
|
||
|
!std::is_assignable<T&, std::string>::value && !std::is_enum<T>::value,
|
||
|
detail::enabler> = detail::dummy>
|
||
|
bool lexical_cast(std::string input, T& output)
|
||
|
{
|
||
|
std::istringstream is;
|
||
|
|
||
|
is.str(input);
|
||
|
is >> output;
|
||
|
return !is.fail() && !is.rdbuf()->in_avail();
|
||
|
}
|
||
|
|
||
|
/// Sum a vector of flag representations
|
||
|
/// The flag vector produces a series of strings in a vector, simple true is represented by a "1", simple false is by
|
||
|
/// "-1" an if numbers are passed by some fashion they are captured as well so the function just checks for the most
|
||
|
/// common true and false strings then uses stoll to convert the rest for summing
|
||
|
template<typename T,
|
||
|
enable_if_t<std::is_integral<T>::value && std::is_unsigned<T>::value, detail::enabler> = detail::dummy>
|
||
|
void sum_flag_vector(const std::vector<std::string>& flags, T& output)
|
||
|
{
|
||
|
int64_t count{ 0 };
|
||
|
for (auto& flag : flags)
|
||
|
{
|
||
|
count += detail::to_flag_value(flag);
|
||
|
}
|
||
|
output = (count > 0) ? static_cast<T>(count) : T{ 0 };
|
||
|
}
|
||
|
|
||
|
/// Sum a vector of flag representations
|
||
|
/// The flag vector produces a series of strings in a vector, simple true is represented by a "1", simple false is by
|
||
|
/// "-1" an if numbers are passed by some fashion they are captured as well so the function just checks for the most
|
||
|
/// common true and false strings then uses stoll to convert the rest for summing
|
||
|
template<typename T,
|
||
|
enable_if_t<std::is_integral<T>::value && std::is_signed<T>::value, detail::enabler> = detail::dummy>
|
||
|
void sum_flag_vector(const std::vector<std::string>& flags, T& output)
|
||
|
{
|
||
|
int64_t count{ 0 };
|
||
|
for (auto& flag : flags)
|
||
|
{
|
||
|
count += detail::to_flag_value(flag);
|
||
|
}
|
||
|
output = static_cast<T>(count);
|
||
|
}
|
||
|
|
||
|
} // namespace detail
|
||
|
} // namespace CLI
|
||
|
|
||
|
// From CLI/Split.hpp:
|
||
|
|
||
|
namespace CLI
|
||
|
{
|
||
|
namespace detail
|
||
|
{
|
||
|
// Returns false if not a short option. Otherwise, sets opt name and rest and returns true
|
||
|
inline bool split_short(const std::string& current, std::string& name, std::string& rest)
|
||
|
{
|
||
|
if (current.size() > 1 && current[0] == '-' && valid_first_char(current[1]))
|
||
|
{
|
||
|
name = current.substr(1, 1);
|
||
|
rest = current.substr(2);
|
||
|
return true;
|
||
|
}
|
||
|
else
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
// Returns false if not a long option. Otherwise, sets opt name and other side of = and returns true
|
||
|
inline bool split_long(const std::string& current, std::string& name, std::string& value)
|
||
|
{
|
||
|
if (current.size() > 2 && current.substr(0, 2) == "--" && valid_first_char(current[2]))
|
||
|
{
|
||
|
auto loc = current.find_first_of('=');
|
||
|
if (loc != std::string::npos)
|
||
|
{
|
||
|
name = current.substr(2, loc - 2);
|
||
|
value = current.substr(loc + 1);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
name = current.substr(2);
|
||
|
value = "";
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
else
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
// Returns false if not a windows style option. Otherwise, sets opt name and value and returns true
|
||
|
inline bool split_windows_style(const std::string& current, std::string& name, std::string& value)
|
||
|
{
|
||
|
if (current.size() > 1 && current[0] == '/' && valid_first_char(current[1]))
|
||
|
{
|
||
|
auto loc = current.find_first_of(':');
|
||
|
if (loc != std::string::npos)
|
||
|
{
|
||
|
name = current.substr(1, loc - 1);
|
||
|
value = current.substr(loc + 1);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
name = current.substr(1);
|
||
|
value = "";
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
else
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
// Splits a string into multiple long and short names
|
||
|
inline std::vector<std::string> split_names(std::string current)
|
||
|
{
|
||
|
std::vector<std::string> output;
|
||
|
size_t val;
|
||
|
while ((val = current.find(",")) != std::string::npos)
|
||
|
{
|
||
|
output.push_back(trim_copy(current.substr(0, val)));
|
||
|
current = current.substr(val + 1);
|
||
|
}
|
||
|
output.push_back(trim_copy(current));
|
||
|
return output;
|
||
|
}
|
||
|
|
||
|
/// extract default flag values either {def} or starting with a !
|
||
|
inline std::vector<std::pair<std::string, std::string>> get_default_flag_values(const std::string& str)
|
||
|
{
|
||
|
std::vector<std::string> flags = split_names(str);
|
||
|
flags.erase(std::remove_if(flags.begin(),
|
||
|
flags.end(),
|
||
|
[](const std::string& name) {
|
||
|
return ((name.empty()) || (!(((name.find_first_of('{') != std::string::npos) &&
|
||
|
(name.back() == '}')) ||
|
||
|
(name[0] == '!'))));
|
||
|
}),
|
||
|
flags.end());
|
||
|
std::vector<std::pair<std::string, std::string>> output;
|
||
|
output.reserve(flags.size());
|
||
|
for (auto& flag : flags)
|
||
|
{
|
||
|
auto def_start = flag.find_first_of('{');
|
||
|
std::string defval = "false";
|
||
|
if ((def_start != std::string::npos) && (flag.back() == '}'))
|
||
|
{
|
||
|
defval = flag.substr(def_start + 1);
|
||
|
defval.pop_back();
|
||
|
flag.erase(def_start, std::string::npos);
|
||
|
}
|
||
|
flag.erase(0, flag.find_first_not_of("-!"));
|
||
|
output.emplace_back(flag, defval);
|
||
|
}
|
||
|
return output;
|
||
|
}
|
||
|
|
||
|
/// Get a vector of short names, one of long names, and a single name
|
||
|
inline std::tuple<std::vector<std::string>, std::vector<std::string>, std::string>
|
||
|
get_names(const std::vector<std::string>& input)
|
||
|
{
|
||
|
std::vector<std::string> short_names;
|
||
|
std::vector<std::string> long_names;
|
||
|
std::string pos_name;
|
||
|
|
||
|
for (std::string name : input)
|
||
|
{
|
||
|
if (name.length() == 0)
|
||
|
continue;
|
||
|
else if (name.length() > 1 && name[0] == '-' && name[1] != '-')
|
||
|
{
|
||
|
if (name.length() == 2 && valid_first_char(name[1]))
|
||
|
short_names.emplace_back(1, name[1]);
|
||
|
else
|
||
|
throw BadNameString::OneCharName(name);
|
||
|
}
|
||
|
else if (name.length() > 2 && name.substr(0, 2) == "--")
|
||
|
{
|
||
|
name = name.substr(2);
|
||
|
if (valid_name_string(name))
|
||
|
long_names.push_back(name);
|
||
|
else
|
||
|
throw BadNameString::BadLongName(name);
|
||
|
}
|
||
|
else if (name == "-" || name == "--")
|
||
|
{
|
||
|
throw BadNameString::DashesOnly(name);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if (pos_name.length() > 0)
|
||
|
throw BadNameString::MultiPositionalNames(name);
|
||
|
pos_name = name;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return std::tuple<std::vector<std::string>, std::vector<std::string>, std::string>(
|
||
|
short_names, long_names, pos_name);
|
||
|
}
|
||
|
|
||
|
} // namespace detail
|
||
|
} // namespace CLI
|
||
|
|
||
|
// From CLI/ConfigFwd.hpp:
|
||
|
|
||
|
namespace CLI
|
||
|
{
|
||
|
class App;
|
||
|
|
||
|
namespace detail
|
||
|
{
|
||
|
/// Comma separated join, adds quotes if needed
|
||
|
inline std::string ini_join(std::vector<std::string> args)
|
||
|
{
|
||
|
std::ostringstream s;
|
||
|
size_t start = 0;
|
||
|
for (const auto& arg : args)
|
||
|
{
|
||
|
if (start++ > 0)
|
||
|
s << " ";
|
||
|
|
||
|
auto it = std::find_if(arg.begin(), arg.end(), [](char ch) { return std::isspace<char>(ch, std::locale()); });
|
||
|
if (it == arg.end())
|
||
|
s << arg;
|
||
|
else if (arg.find_first_of('\"') == std::string::npos)
|
||
|
s << '\"' << arg << '\"';
|
||
|
else
|
||
|
s << '\'' << arg << '\'';
|
||
|
}
|
||
|
|
||
|
return s.str();
|
||
|
}
|
||
|
|
||
|
} // namespace detail
|
||
|
|
||
|
/// Holds values to load into Options
|
||
|
struct ConfigItem
|
||
|
{
|
||
|
/// This is the list of parents
|
||
|
std::vector<std::string> parents;
|
||
|
|
||
|
/// This is the name
|
||
|
std::string name;
|
||
|
|
||
|
/// Listing of inputs
|
||
|
std::vector<std::string> inputs;
|
||
|
|
||
|
/// The list of parents and name joined by "."
|
||
|
std::string fullname() const
|
||
|
{
|
||
|
std::vector<std::string> tmp = parents;
|
||
|
tmp.emplace_back(name);
|
||
|
return detail::join(tmp, ".");
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// This class provides a converter for configuration files.
|
||
|
class Config
|
||
|
{
|
||
|
protected:
|
||
|
std::vector<ConfigItem> items;
|
||
|
|
||
|
public:
|
||
|
/// Convert an app into a configuration
|
||
|
virtual std::string to_config(const App*, bool, bool, std::string) const = 0;
|
||
|
|
||
|
/// Convert a configuration into an app
|
||
|
virtual std::vector<ConfigItem> from_config(std::istream&) const = 0;
|
||
|
|
||
|
/// Get a flag value
|
||
|
virtual std::string to_flag(const ConfigItem& item) const
|
||
|
{
|
||
|
if (item.inputs.size() == 1)
|
||
|
{
|
||
|
return item.inputs.at(0);
|
||
|
}
|
||
|
throw ConversionError::TooManyInputsFlag(item.fullname());
|
||
|
}
|
||
|
|
||
|
/// Parse a config file, throw an error (ParseError:ConfigParseError or FileError) on failure
|
||
|
std::vector<ConfigItem> from_file(const std::string& name)
|
||
|
{
|
||
|
std::ifstream input{ name };
|
||
|
if (!input.good())
|
||
|
throw FileError::Missing(name);
|
||
|
|
||
|
return from_config(input);
|
||
|
}
|
||
|
|
||
|
/// Virtual destructor
|
||
|
virtual ~Config() = default;
|
||
|
};
|
||
|
|
||
|
/// This converter works with INI files
|
||
|
class ConfigINI : public Config
|
||
|
{
|
||
|
public:
|
||
|
std::string to_config(const App*, bool default_also, bool write_description, std::string prefix) const override;
|
||
|
|
||
|
std::vector<ConfigItem> from_config(std::istream& input) const override
|
||
|
{
|
||
|
std::string line;
|
||
|
std::string section = "default";
|
||
|
|
||
|
std::vector<ConfigItem> output;
|
||
|
|
||
|
while (getline(input, line))
|
||
|
{
|
||
|
std::vector<std::string> items_buffer;
|
||
|
|
||
|
detail::trim(line);
|
||
|
size_t len = line.length();
|
||
|
if (len > 1 && line[0] == '[' && line[len - 1] == ']')
|
||
|
{
|
||
|
section = line.substr(1, len - 2);
|
||
|
}
|
||
|
else if (len > 0 && line[0] != ';')
|
||
|
{
|
||
|
output.emplace_back();
|
||
|
ConfigItem& out = output.back();
|
||
|
|
||
|
// Find = in string, split and recombine
|
||
|
auto pos = line.find('=');
|
||
|
if (pos != std::string::npos)
|
||
|
{
|
||
|
out.name = detail::trim_copy(line.substr(0, pos));
|
||
|
std::string item = detail::trim_copy(line.substr(pos + 1));
|
||
|
items_buffer = detail::split_up(item);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
out.name = detail::trim_copy(line);
|
||
|
items_buffer = { "ON" };
|
||
|
}
|
||
|
|
||
|
if (detail::to_lower(section) != "default")
|
||
|
{
|
||
|
out.parents = { section };
|
||
|
}
|
||
|
|
||
|
if (out.name.find('.') != std::string::npos)
|
||
|
{
|
||
|
std::vector<std::string> plist = detail::split(out.name, '.');
|
||
|
out.name = plist.back();
|
||
|
plist.pop_back();
|
||
|
out.parents.insert(out.parents.end(), plist.begin(), plist.end());
|
||
|
}
|
||
|
|
||
|
out.inputs.insert(std::end(out.inputs), std::begin(items_buffer), std::end(items_buffer));
|
||
|
}
|
||
|
}
|
||
|
return output;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
} // namespace CLI
|
||
|
|
||
|
// From CLI/Validators.hpp:
|
||
|
|
||
|
namespace CLI
|
||
|
{
|
||
|
class Option;
|
||
|
|
||
|
/// @defgroup validator_group Validators
|
||
|
|
||
|
/// @brief Some validators that are provided
|
||
|
///
|
||
|
/// These are simple `std::string(const std::string&)` validators that are useful. They return
|
||
|
/// a string if the validation fails. A custom struct is provided, as well, with the same user
|
||
|
/// semantics, but with the ability to provide a new type name.
|
||
|
/// @{
|
||
|
|
||
|
///
|
||
|
class Validator
|
||
|
{
|
||
|
protected:
|
||
|
/// This is the description function, if empty the description_ will be used
|
||
|
std::function<std::string()> desc_function_{ []() { return std::string{}; } };
|
||
|
|
||
|
/// This it the base function that is to be called.
|
||
|
/// Returns a string error message if validation fails.
|
||
|
std::function<std::string(std::string&)> func_{ [](std::string&) { return std::string{}; } };
|
||
|
/// The name for search purposes of the Validator
|
||
|
std::string name_;
|
||
|
/// Enable for Validator to allow it to be disabled if need be
|
||
|
bool active_{ true };
|
||
|
/// specify that a validator should not modify the input
|
||
|
bool non_modifying_{ false };
|
||
|
|
||
|
public:
|
||
|
Validator() = default;
|
||
|
/// Construct a Validator with just the description string
|
||
|
explicit Validator(std::string validator_desc) :
|
||
|
desc_function_([validator_desc]() { return validator_desc; }) {}
|
||
|
// Construct Validator from basic information
|
||
|
Validator(std::function<std::string(std::string&)> op, std::string validator_desc, std::string validator_name = "") :
|
||
|
desc_function_([validator_desc]() { return validator_desc; }),
|
||
|
func_(std::move(op)),
|
||
|
name_(std::move(validator_name)) {}
|
||
|
/// Set the Validator operation function
|
||
|
Validator& operation(std::function<std::string(std::string&)> op)
|
||
|
{
|
||
|
func_ = std::move(op);
|
||
|
return *this;
|
||
|
}
|
||
|
/// This is the required operator for a Validator - provided to help
|
||
|
/// users (CLI11 uses the member `func` directly)
|
||
|
std::string operator()(std::string& str) const
|
||
|
{
|
||
|
std::string retstring;
|
||
|
if (active_)
|
||
|
{
|
||
|
if (non_modifying_)
|
||
|
{
|
||
|
std::string value = str;
|
||
|
retstring = func_(value);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
retstring = func_(str);
|
||
|
}
|
||
|
}
|
||
|
return retstring;
|
||
|
};
|
||
|
|
||
|
/// This is the required operator for a Validator - provided to help
|
||
|
/// users (CLI11 uses the member `func` directly)
|
||
|
std::string operator()(const std::string& str) const
|
||
|
{
|
||
|
std::string value = str;
|
||
|
return (active_) ? func_(value) : std::string{};
|
||
|
};
|
||
|
|
||
|
/// Specify the type string
|
||
|
Validator& description(std::string validator_desc)
|
||
|
{
|
||
|
desc_function_ = [validator_desc]() { return validator_desc; };
|
||
|
return *this;
|
||
|
}
|
||
|
/// Generate type description information for the Validator
|
||
|
std::string get_description() const
|
||
|
{
|
||
|
if (active_)
|
||
|
{
|
||
|
return desc_function_();
|
||
|
}
|
||
|
return std::string{};
|
||
|
}
|
||
|
/// Specify the type string
|
||
|
Validator& name(std::string validator_name)
|
||
|
{
|
||
|
name_ = std::move(validator_name);
|
||
|
return *this;
|
||
|
}
|
||
|
/// Get the name of the Validator
|
||
|
const std::string& get_name() const { return name_; }
|
||
|
/// Specify whether the Validator is active or not
|
||
|
Validator& active(bool active_val = true)
|
||
|
{
|
||
|
active_ = active_val;
|
||
|
return *this;
|
||
|
}
|
||
|
|
||
|
/// Specify whether the Validator can be modifying or not
|
||
|
Validator& non_modifying(bool no_modify = true)
|
||
|
{
|
||
|
non_modifying_ = no_modify;
|
||
|
return *this;
|
||
|
}
|
||
|
|
||
|
/// Get a boolean if the validator is active
|
||
|
bool get_active() const { return active_; }
|
||
|
|
||
|
/// Get a boolean if the validator is allowed to modify the input returns true if it can modify the input
|
||
|
bool get_modifying() const { return !non_modifying_; }
|
||
|
|
||
|
/// Combining validators is a new validator. Type comes from left validator if function, otherwise only set if the
|
||
|
/// same.
|
||
|
Validator operator&(const Validator& other) const
|
||
|
{
|
||
|
Validator newval;
|
||
|
|
||
|
newval._merge_description(*this, other, " AND ");
|
||
|
|
||
|
// Give references (will make a copy in lambda function)
|
||
|
const std::function<std::string(std::string & filename)>& f1 = func_;
|
||
|
const std::function<std::string(std::string & filename)>& f2 = other.func_;
|
||
|
|
||
|
newval.func_ = [f1, f2](std::string& input) {
|
||
|
std::string s1 = f1(input);
|
||
|
std::string s2 = f2(input);
|
||
|
if (!s1.empty() && !s2.empty())
|
||
|
return std::string("(") + s1 + ") AND (" + s2 + ")";
|
||
|
else
|
||
|
return s1 + s2;
|
||
|
};
|
||
|
|
||
|
newval.active_ = (active_ & other.active_);
|
||
|
return newval;
|
||
|
}
|
||
|
|
||
|
/// Combining validators is a new validator. Type comes from left validator if function, otherwise only set if the
|
||
|
/// same.
|
||
|
Validator operator|(const Validator& other) const
|
||
|
{
|
||
|
Validator newval;
|
||
|
|
||
|
newval._merge_description(*this, other, " OR ");
|
||
|
|
||
|
// Give references (will make a copy in lambda function)
|
||
|
const std::function<std::string(std::string&)>& f1 = func_;
|
||
|
const std::function<std::string(std::string&)>& f2 = other.func_;
|
||
|
|
||
|
newval.func_ = [f1, f2](std::string& input) {
|
||
|
std::string s1 = f1(input);
|
||
|
std::string s2 = f2(input);
|
||
|
if (s1.empty() || s2.empty())
|
||
|
return std::string();
|
||
|
else
|
||
|
return std::string("(") + s1 + ") OR (" + s2 + ")";
|
||
|
};
|
||
|
newval.active_ = (active_ & other.active_);
|
||
|
return newval;
|
||
|
}
|
||
|
|
||
|
/// Create a validator that fails when a given validator succeeds
|
||
|
Validator operator!() const
|
||
|
{
|
||
|
Validator newval;
|
||
|
const std::function<std::string()>& dfunc1 = desc_function_;
|
||
|
newval.desc_function_ = [dfunc1]() {
|
||
|
auto str = dfunc1();
|
||
|
return (!str.empty()) ? std::string("NOT ") + str : std::string{};
|
||
|
};
|
||
|
// Give references (will make a copy in lambda function)
|
||
|
const std::function<std::string(std::string & res)>& f1 = func_;
|
||
|
|
||
|
newval.func_ = [f1, dfunc1](std::string& test) -> std::string {
|
||
|
std::string s1 = f1(test);
|
||
|
if (s1.empty())
|
||
|
{
|
||
|
return std::string("check ") + dfunc1() + " succeeded improperly";
|
||
|
}
|
||
|
else
|
||
|
return std::string{};
|
||
|
};
|
||
|
newval.active_ = active_;
|
||
|
return newval;
|
||
|
}
|
||
|
|
||
|
private:
|
||
|
void _merge_description(const Validator& val1, const Validator& val2, const std::string& merger)
|
||
|
{
|
||
|
const std::function<std::string()>& dfunc1 = val1.desc_function_;
|
||
|
const std::function<std::string()>& dfunc2 = val2.desc_function_;
|
||
|
|
||
|
desc_function_ = [=]() {
|
||
|
std::string f1 = dfunc1();
|
||
|
std::string f2 = dfunc2();
|
||
|
if ((f1.empty()) || (f2.empty()))
|
||
|
{
|
||
|
return f1 + f2;
|
||
|
}
|
||
|
return std::string("(") + f1 + ")" + merger + "(" + f2 + ")";
|
||
|
};
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Class wrapping some of the accessors of Validator
|
||
|
class CustomValidator : public Validator
|
||
|
{
|
||
|
public:
|
||
|
};
|
||
|
// The implementation of the built in validators is using the Validator class;
|
||
|
// the user is only expected to use the const (static) versions (since there's no setup).
|
||
|
// Therefore, this is in detail.
|
||
|
namespace detail
|
||
|
{
|
||
|
/// Check for an existing file (returns error message if check fails)
|
||
|
class ExistingFileValidator : public Validator
|
||
|
{
|
||
|
public:
|
||
|
ExistingFileValidator() :
|
||
|
Validator("FILE")
|
||
|
{
|
||
|
func_ = [](std::string& filename) {
|
||
|
struct stat buffer;
|
||
|
bool exist = stat(filename.c_str(), &buffer) == 0;
|
||
|
bool is_dir = (buffer.st_mode & S_IFDIR) != 0;
|
||
|
if (!exist)
|
||
|
{
|
||
|
return "File does not exist: " + filename;
|
||
|
}
|
||
|
else if (is_dir)
|
||
|
{
|
||
|
return "File is actually a directory: " + filename;
|
||
|
}
|
||
|
return std::string();
|
||
|
};
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Check for an existing directory (returns error message if check fails)
|
||
|
class ExistingDirectoryValidator : public Validator
|
||
|
{
|
||
|
public:
|
||
|
ExistingDirectoryValidator() :
|
||
|
Validator("DIR")
|
||
|
{
|
||
|
func_ = [](std::string& filename) {
|
||
|
struct stat buffer;
|
||
|
bool exist = stat(filename.c_str(), &buffer) == 0;
|
||
|
bool is_dir = (buffer.st_mode & S_IFDIR) != 0;
|
||
|
if (!exist)
|
||
|
{
|
||
|
return "Directory does not exist: " + filename;
|
||
|
}
|
||
|
else if (!is_dir)
|
||
|
{
|
||
|
return "Directory is actually a file: " + filename;
|
||
|
}
|
||
|
return std::string();
|
||
|
};
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Check for an existing path
|
||
|
class ExistingPathValidator : public Validator
|
||
|
{
|
||
|
public:
|
||
|
ExistingPathValidator() :
|
||
|
Validator("PATH(existing)")
|
||
|
{
|
||
|
func_ = [](std::string& filename) {
|
||
|
struct stat buffer;
|
||
|
bool const exist = stat(filename.c_str(), &buffer) == 0;
|
||
|
if (!exist)
|
||
|
{
|
||
|
return "Path does not exist: " + filename;
|
||
|
}
|
||
|
return std::string();
|
||
|
};
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Check for an non-existing path
|
||
|
class NonexistentPathValidator : public Validator
|
||
|
{
|
||
|
public:
|
||
|
NonexistentPathValidator() :
|
||
|
Validator("PATH(non-existing)")
|
||
|
{
|
||
|
func_ = [](std::string& filename) {
|
||
|
struct stat buffer;
|
||
|
bool exist = stat(filename.c_str(), &buffer) == 0;
|
||
|
if (exist)
|
||
|
{
|
||
|
return "Path already exists: " + filename;
|
||
|
}
|
||
|
return std::string();
|
||
|
};
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Validate the given string is a legal ipv4 address
|
||
|
class IPV4Validator : public Validator
|
||
|
{
|
||
|
public:
|
||
|
IPV4Validator() :
|
||
|
Validator("IPV4")
|
||
|
{
|
||
|
func_ = [](std::string& ip_addr) {
|
||
|
auto result = CLI::detail::split(ip_addr, '.');
|
||
|
if (result.size() != 4)
|
||
|
{
|
||
|
return "Invalid IPV4 address must have four parts " + ip_addr;
|
||
|
}
|
||
|
int num;
|
||
|
bool retval = true;
|
||
|
for (const auto& var : result)
|
||
|
{
|
||
|
retval &= detail::lexical_cast(var, num);
|
||
|
if (!retval)
|
||
|
{
|
||
|
return "Failed parsing number " + var;
|
||
|
}
|
||
|
if (num < 0 || num > 255)
|
||
|
{
|
||
|
return "Each IP number must be between 0 and 255 " + var;
|
||
|
}
|
||
|
}
|
||
|
return std::string();
|
||
|
};
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Validate the argument is a number and greater than or equal to 0
|
||
|
class PositiveNumber : public Validator
|
||
|
{
|
||
|
public:
|
||
|
PositiveNumber() :
|
||
|
Validator("POSITIVE")
|
||
|
{
|
||
|
func_ = [](std::string& number_str) {
|
||
|
int number;
|
||
|
if (!detail::lexical_cast(number_str, number))
|
||
|
{
|
||
|
return "Failed parsing number " + number_str;
|
||
|
}
|
||
|
if (number < 0)
|
||
|
{
|
||
|
return "Number less then 0 " + number_str;
|
||
|
}
|
||
|
return std::string();
|
||
|
};
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Validate the argument is a number and greater than or equal to 0
|
||
|
class Number : public Validator
|
||
|
{
|
||
|
public:
|
||
|
Number() :
|
||
|
Validator("NUMBER")
|
||
|
{
|
||
|
func_ = [](std::string& number_str) {
|
||
|
double number;
|
||
|
if (!detail::lexical_cast(number_str, number))
|
||
|
{
|
||
|
return "Failed parsing as a number " + number_str;
|
||
|
}
|
||
|
return std::string();
|
||
|
};
|
||
|
}
|
||
|
};
|
||
|
|
||
|
} // namespace detail
|
||
|
|
||
|
// Static is not needed here, because global const implies static.
|
||
|
|
||
|
/// Check for existing file (returns error message if check fails)
|
||
|
const detail::ExistingFileValidator ExistingFile;
|
||
|
|
||
|
/// Check for an existing directory (returns error message if check fails)
|
||
|
const detail::ExistingDirectoryValidator ExistingDirectory;
|
||
|
|
||
|
/// Check for an existing path
|
||
|
const detail::ExistingPathValidator ExistingPath;
|
||
|
|
||
|
/// Check for an non-existing path
|
||
|
const detail::NonexistentPathValidator NonexistentPath;
|
||
|
|
||
|
/// Check for an IP4 address
|
||
|
const detail::IPV4Validator ValidIPV4;
|
||
|
|
||
|
/// Check for a positive number
|
||
|
const detail::PositiveNumber PositiveNumber;
|
||
|
|
||
|
/// Check for a number
|
||
|
const detail::Number Number;
|
||
|
|
||
|
/// Produce a range (factory). Min and max are inclusive.
|
||
|
class Range : public Validator
|
||
|
{
|
||
|
public:
|
||
|
/// This produces a range with min and max inclusive.
|
||
|
///
|
||
|
/// Note that the constructor is templated, but the struct is not, so C++17 is not
|
||
|
/// needed to provide nice syntax for Range(a,b).
|
||
|
template<typename T>
|
||
|
Range(T min, T max)
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
out << detail::type_name<T>() << " in [" << min << " - " << max << "]";
|
||
|
description(out.str());
|
||
|
|
||
|
func_ = [min, max](std::string& input) {
|
||
|
T val;
|
||
|
bool converted = detail::lexical_cast(input, val);
|
||
|
if ((!converted) || (val < min || val > max))
|
||
|
return "Value " + input + " not in range " + std::to_string(min) + " to " + std::to_string(max);
|
||
|
|
||
|
return std::string();
|
||
|
};
|
||
|
}
|
||
|
|
||
|
/// Range of one value is 0 to value
|
||
|
template<typename T>
|
||
|
explicit Range(T max) :
|
||
|
Range(static_cast<T>(0), max)
|
||
|
{
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Produce a bounded range (factory). Min and max are inclusive.
|
||
|
class Bound : public Validator
|
||
|
{
|
||
|
public:
|
||
|
/// This bounds a value with min and max inclusive.
|
||
|
///
|
||
|
/// Note that the constructor is templated, but the struct is not, so C++17 is not
|
||
|
/// needed to provide nice syntax for Range(a,b).
|
||
|
template<typename T>
|
||
|
Bound(T min, T max)
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
out << detail::type_name<T>() << " bounded to [" << min << " - " << max << "]";
|
||
|
description(out.str());
|
||
|
|
||
|
func_ = [min, max](std::string& input) {
|
||
|
T val;
|
||
|
bool converted = detail::lexical_cast(input, val);
|
||
|
if (!converted)
|
||
|
{
|
||
|
return "Value " + input + " could not be converted";
|
||
|
}
|
||
|
if (val < min)
|
||
|
input = detail::as_string(min);
|
||
|
else if (val > max)
|
||
|
input = detail::as_string(max);
|
||
|
|
||
|
return std::string();
|
||
|
};
|
||
|
}
|
||
|
|
||
|
/// Range of one value is 0 to value
|
||
|
template<typename T>
|
||
|
explicit Bound(T max) :
|
||
|
Bound(static_cast<T>(0), max)
|
||
|
{
|
||
|
}
|
||
|
};
|
||
|
|
||
|
namespace detail
|
||
|
{
|
||
|
template<typename T,
|
||
|
enable_if_t<is_copyable_ptr<typename std::remove_reference<T>::type>::value, detail::enabler> = detail::dummy>
|
||
|
auto smart_deref(T value) -> decltype(*value)
|
||
|
{
|
||
|
return *value;
|
||
|
}
|
||
|
|
||
|
template<
|
||
|
typename T,
|
||
|
enable_if_t<!is_copyable_ptr<typename std::remove_reference<T>::type>::value, detail::enabler> = detail::dummy>
|
||
|
typename std::remove_reference<T>::type& smart_deref(T& value)
|
||
|
{
|
||
|
return value;
|
||
|
}
|
||
|
/// Generate a string representation of a set
|
||
|
template<typename T>
|
||
|
std::string generate_set(const T& set)
|
||
|
{
|
||
|
using element_t = typename detail::element_type<T>::type;
|
||
|
using iteration_type_t = typename detail::pair_adaptor<element_t>::value_type; // the type of the object pair
|
||
|
std::string out(1, '{');
|
||
|
out.append(detail::join(
|
||
|
detail::smart_deref(set),
|
||
|
[](const iteration_type_t& v) { return detail::pair_adaptor<element_t>::first(v); },
|
||
|
","));
|
||
|
out.push_back('}');
|
||
|
return out;
|
||
|
}
|
||
|
|
||
|
/// Generate a string representation of a map
|
||
|
template<typename T>
|
||
|
std::string generate_map(const T& map, bool key_only = false)
|
||
|
{
|
||
|
using element_t = typename detail::element_type<T>::type;
|
||
|
using iteration_type_t = typename detail::pair_adaptor<element_t>::value_type; // the type of the object pair
|
||
|
std::string out(1, '{');
|
||
|
out.append(detail::join(
|
||
|
detail::smart_deref(map),
|
||
|
[key_only](const iteration_type_t& v) {
|
||
|
auto res = detail::as_string(detail::pair_adaptor<element_t>::first(v));
|
||
|
if (!key_only)
|
||
|
{
|
||
|
res += "->" + detail::as_string(detail::pair_adaptor<element_t>::second(v));
|
||
|
}
|
||
|
return res;
|
||
|
},
|
||
|
","));
|
||
|
out.push_back('}');
|
||
|
return out;
|
||
|
}
|
||
|
|
||
|
template<typename>
|
||
|
struct sfinae_true : std::true_type
|
||
|
{
|
||
|
};
|
||
|
/// Function to check for the existence of a member find function which presumably is more efficient than looping over
|
||
|
/// everything
|
||
|
template<typename T, typename V>
|
||
|
static auto test_find(int) -> sfinae_true<decltype(std::declval<T>().find(std::declval<V>()))>;
|
||
|
template<typename, typename V>
|
||
|
static auto test_find(long) -> std::false_type;
|
||
|
|
||
|
template<typename T, typename V>
|
||
|
struct has_find : decltype(test_find<T, V>(0))
|
||
|
{
|
||
|
};
|
||
|
|
||
|
/// A search function
|
||
|
template<typename T, typename V, enable_if_t<!has_find<T, V>::value, detail::enabler> = detail::dummy>
|
||
|
auto search(const T& set, const V& val) -> std::pair<bool, decltype(std::begin(detail::smart_deref(set)))>
|
||
|
{
|
||
|
using element_t = typename detail::element_type<T>::type;
|
||
|
auto& setref = detail::smart_deref(set);
|
||
|
auto it = std::find_if(std::begin(setref), std::end(setref), [&val](decltype(*std::begin(setref)) v) {
|
||
|
return (detail::pair_adaptor<element_t>::first(v) == val);
|
||
|
});
|
||
|
return { (it != std::end(setref)), it };
|
||
|
}
|
||
|
|
||
|
/// A search function that uses the built in find function
|
||
|
template<typename T, typename V, enable_if_t<has_find<T, V>::value, detail::enabler> = detail::dummy>
|
||
|
auto search(const T& set, const V& val) -> std::pair<bool, decltype(std::begin(detail::smart_deref(set)))>
|
||
|
{
|
||
|
auto& setref = detail::smart_deref(set);
|
||
|
auto it = setref.find(val);
|
||
|
return { (it != std::end(setref)), it };
|
||
|
}
|
||
|
|
||
|
/// A search function with a filter function
|
||
|
template<typename T, typename V>
|
||
|
auto search(const T& set, const V& val, const std::function<V(V)>& filter_function)
|
||
|
-> std::pair<bool, decltype(std::begin(detail::smart_deref(set)))>
|
||
|
{
|
||
|
using element_t = typename detail::element_type<T>::type;
|
||
|
// do the potentially faster first search
|
||
|
auto res = search(set, val);
|
||
|
if ((res.first) || (!(filter_function)))
|
||
|
{
|
||
|
return res;
|
||
|
}
|
||
|
// if we haven't found it do the longer linear search with all the element translations
|
||
|
auto& setref = detail::smart_deref(set);
|
||
|
auto it = std::find_if(std::begin(setref), std::end(setref), [&](decltype(*std::begin(setref)) v) {
|
||
|
V a = detail::pair_adaptor<element_t>::first(v);
|
||
|
a = filter_function(a);
|
||
|
return (a == val);
|
||
|
});
|
||
|
return { (it != std::end(setref)), it };
|
||
|
}
|
||
|
|
||
|
/// Performs a *= b; if it doesn't cause integer overflow. Returns false otherwise.
|
||
|
template<typename T>
|
||
|
typename std::enable_if<std::is_integral<T>::value, bool>::type checked_multiply(T& a, T b)
|
||
|
{
|
||
|
if (a == 0 || b == 0)
|
||
|
{
|
||
|
a *= b;
|
||
|
return true;
|
||
|
}
|
||
|
T c = a * b;
|
||
|
if (c / a != b)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
a = c;
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
/// Performs a *= b; if it doesn't equal infinity. Returns false otherwise.
|
||
|
template<typename T>
|
||
|
typename std::enable_if<std::is_floating_point<T>::value, bool>::type checked_multiply(T& a, T b)
|
||
|
{
|
||
|
T c = a * b;
|
||
|
if (std::isinf(c) && !std::isinf(a) && !std::isinf(b))
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
a = c;
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
} // namespace detail
|
||
|
/// Verify items are in a set
|
||
|
class IsMember : public Validator
|
||
|
{
|
||
|
public:
|
||
|
using filter_fn_t = std::function<std::string(std::string)>;
|
||
|
|
||
|
/// This allows in-place construction using an initializer list
|
||
|
template<typename T, typename... Args>
|
||
|
explicit IsMember(std::initializer_list<T> values, Args&&... args) :
|
||
|
IsMember(std::vector<T>(values), std::forward<Args>(args)...)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
/// This checks to see if an item is in a set (empty function)
|
||
|
template<typename T>
|
||
|
explicit IsMember(T&& set) :
|
||
|
IsMember(std::forward<T>(set), nullptr)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
/// This checks to see if an item is in a set: pointer or copy version. You can pass in a function that will filter
|
||
|
/// both sides of the comparison before computing the comparison.
|
||
|
template<typename T, typename F>
|
||
|
explicit IsMember(T set, F filter_function)
|
||
|
{
|
||
|
// Get the type of the contained item - requires a container have ::value_type
|
||
|
// if the type does not have first_type and second_type, these are both value_type
|
||
|
using element_t = typename detail::element_type<T>::type; // Removes (smart) pointers if needed
|
||
|
using item_t = typename detail::pair_adaptor<element_t>::first_type; // Is value_type if not a map
|
||
|
|
||
|
using local_item_t = typename IsMemberType<item_t>::type; // This will convert bad types to good ones
|
||
|
// (const char * to std::string)
|
||
|
|
||
|
// Make a local copy of the filter function, using a std::function if not one already
|
||
|
std::function<local_item_t(local_item_t)> filter_fn = filter_function;
|
||
|
|
||
|
// This is the type name for help, it will take the current version of the set contents
|
||
|
desc_function_ = [set]() { return detail::generate_set(detail::smart_deref(set)); };
|
||
|
|
||
|
// This is the function that validates
|
||
|
// It stores a copy of the set pointer-like, so shared_ptr will stay alive
|
||
|
func_ = [set, filter_fn](std::string& input) {
|
||
|
local_item_t b;
|
||
|
if (!detail::lexical_cast(input, b))
|
||
|
{
|
||
|
throw ValidationError(input); // name is added later
|
||
|
}
|
||
|
if (filter_fn)
|
||
|
{
|
||
|
b = filter_fn(b);
|
||
|
}
|
||
|
auto res = detail::search(set, b, filter_fn);
|
||
|
if (res.first)
|
||
|
{
|
||
|
// Make sure the version in the input string is identical to the one in the set
|
||
|
if (filter_fn)
|
||
|
{
|
||
|
input = detail::as_string(detail::pair_adaptor<element_t>::first(*(res.second)));
|
||
|
}
|
||
|
|
||
|
// Return empty error string (success)
|
||
|
return std::string{};
|
||
|
}
|
||
|
|
||
|
// If you reach this point, the result was not found
|
||
|
std::string out(" not in ");
|
||
|
out += detail::generate_set(detail::smart_deref(set));
|
||
|
return out;
|
||
|
};
|
||
|
}
|
||
|
|
||
|
/// You can pass in as many filter functions as you like, they nest (string only currently)
|
||
|
template<typename T, typename... Args>
|
||
|
IsMember(T&& set, filter_fn_t filter_fn_1, filter_fn_t filter_fn_2, Args&&... other) :
|
||
|
IsMember(
|
||
|
std::forward<T>(set),
|
||
|
[filter_fn_1, filter_fn_2](std::string a) { return filter_fn_2(filter_fn_1(a)); },
|
||
|
other...)
|
||
|
{
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// definition of the default transformation object
|
||
|
template<typename T>
|
||
|
using TransformPairs = std::vector<std::pair<std::string, T>>;
|
||
|
|
||
|
/// Translate named items to other or a value set
|
||
|
class Transformer : public Validator
|
||
|
{
|
||
|
public:
|
||
|
using filter_fn_t = std::function<std::string(std::string)>;
|
||
|
|
||
|
/// This allows in-place construction
|
||
|
template<typename... Args>
|
||
|
explicit Transformer(std::initializer_list<std::pair<std::string, std::string>> values, Args&&... args) :
|
||
|
Transformer(TransformPairs<std::string>(values), std::forward<Args>(args)...)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
/// direct map of std::string to std::string
|
||
|
template<typename T>
|
||
|
explicit Transformer(T&& mapping) :
|
||
|
Transformer(std::forward<T>(mapping), nullptr)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
/// This checks to see if an item is in a set: pointer or copy version. You can pass in a function that will filter
|
||
|
/// both sides of the comparison before computing the comparison.
|
||
|
template<typename T, typename F>
|
||
|
explicit Transformer(T mapping, F filter_function)
|
||
|
{
|
||
|
static_assert(detail::pair_adaptor<typename detail::element_type<T>::type>::value,
|
||
|
"mapping must produce value pairs");
|
||
|
// Get the type of the contained item - requires a container have ::value_type
|
||
|
// if the type does not have first_type and second_type, these are both value_type
|
||
|
using element_t = typename detail::element_type<T>::type; // Removes (smart) pointers if needed
|
||
|
using item_t = typename detail::pair_adaptor<element_t>::first_type; // Is value_type if not a map
|
||
|
using local_item_t = typename IsMemberType<item_t>::type; // This will convert bad types to good ones
|
||
|
// (const char * to std::string)
|
||
|
|
||
|
// Make a local copy of the filter function, using a std::function if not one already
|
||
|
std::function<local_item_t(local_item_t)> filter_fn = filter_function;
|
||
|
|
||
|
// This is the type name for help, it will take the current version of the set contents
|
||
|
desc_function_ = [mapping]() { return detail::generate_map(detail::smart_deref(mapping)); };
|
||
|
|
||
|
func_ = [mapping, filter_fn](std::string& input) {
|
||
|
local_item_t b;
|
||
|
if (!detail::lexical_cast(input, b))
|
||
|
{
|
||
|
return std::string();
|
||
|
// there is no possible way we can match anything in the mapping if we can't convert so just return
|
||
|
}
|
||
|
if (filter_fn)
|
||
|
{
|
||
|
b = filter_fn(b);
|
||
|
}
|
||
|
auto res = detail::search(mapping, b, filter_fn);
|
||
|
if (res.first)
|
||
|
{
|
||
|
input = detail::as_string(detail::pair_adaptor<element_t>::second(*res.second));
|
||
|
}
|
||
|
return std::string{};
|
||
|
};
|
||
|
}
|
||
|
|
||
|
/// You can pass in as many filter functions as you like, they nest
|
||
|
template<typename T, typename... Args>
|
||
|
Transformer(T&& mapping, filter_fn_t filter_fn_1, filter_fn_t filter_fn_2, Args&&... other) :
|
||
|
Transformer(
|
||
|
std::forward<T>(mapping),
|
||
|
[filter_fn_1, filter_fn_2](std::string a) { return filter_fn_2(filter_fn_1(a)); },
|
||
|
other...)
|
||
|
{
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// translate named items to other or a value set
|
||
|
class CheckedTransformer : public Validator
|
||
|
{
|
||
|
public:
|
||
|
using filter_fn_t = std::function<std::string(std::string)>;
|
||
|
|
||
|
/// This allows in-place construction
|
||
|
template<typename... Args>
|
||
|
explicit CheckedTransformer(std::initializer_list<std::pair<std::string, std::string>> values, Args&&... args) :
|
||
|
CheckedTransformer(TransformPairs<std::string>(values), std::forward<Args>(args)...)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
/// direct map of std::string to std::string
|
||
|
template<typename T>
|
||
|
explicit CheckedTransformer(T mapping) :
|
||
|
CheckedTransformer(std::move(mapping), nullptr)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
/// This checks to see if an item is in a set: pointer or copy version. You can pass in a function that will filter
|
||
|
/// both sides of the comparison before computing the comparison.
|
||
|
template<typename T, typename F>
|
||
|
explicit CheckedTransformer(T mapping, F filter_function)
|
||
|
{
|
||
|
static_assert(detail::pair_adaptor<typename detail::element_type<T>::type>::value,
|
||
|
"mapping must produce value pairs");
|
||
|
// Get the type of the contained item - requires a container have ::value_type
|
||
|
// if the type does not have first_type and second_type, these are both value_type
|
||
|
using element_t = typename detail::element_type<T>::type; // Removes (smart) pointers if needed
|
||
|
using item_t = typename detail::pair_adaptor<element_t>::first_type; // Is value_type if not a map
|
||
|
using local_item_t = typename IsMemberType<item_t>::type; // This will convert bad types to good ones
|
||
|
// (const char * to std::string)
|
||
|
using iteration_type_t = typename detail::pair_adaptor<element_t>::value_type; // the type of the object pair //
|
||
|
// the type of the object pair
|
||
|
|
||
|
// Make a local copy of the filter function, using a std::function if not one already
|
||
|
std::function<local_item_t(local_item_t)> filter_fn = filter_function;
|
||
|
|
||
|
auto tfunc = [mapping]() {
|
||
|
std::string out("value in ");
|
||
|
out += detail::generate_map(detail::smart_deref(mapping)) + " OR {";
|
||
|
out += detail::join(
|
||
|
detail::smart_deref(mapping),
|
||
|
[](const iteration_type_t& v) { return detail::as_string(detail::pair_adaptor<element_t>::second(v)); },
|
||
|
",");
|
||
|
out.push_back('}');
|
||
|
return out;
|
||
|
};
|
||
|
|
||
|
desc_function_ = tfunc;
|
||
|
|
||
|
func_ = [mapping, tfunc, filter_fn](std::string& input) {
|
||
|
local_item_t b;
|
||
|
bool converted = detail::lexical_cast(input, b);
|
||
|
if (converted)
|
||
|
{
|
||
|
if (filter_fn)
|
||
|
{
|
||
|
b = filter_fn(b);
|
||
|
}
|
||
|
auto res = detail::search(mapping, b, filter_fn);
|
||
|
if (res.first)
|
||
|
{
|
||
|
input = detail::as_string(detail::pair_adaptor<element_t>::second(*res.second));
|
||
|
return std::string{};
|
||
|
}
|
||
|
}
|
||
|
for (const auto& v : detail::smart_deref(mapping))
|
||
|
{
|
||
|
auto output_string = detail::as_string(detail::pair_adaptor<element_t>::second(v));
|
||
|
if (output_string == input)
|
||
|
{
|
||
|
return std::string();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return "Check " + input + " " + tfunc() + " FAILED";
|
||
|
};
|
||
|
}
|
||
|
|
||
|
/// You can pass in as many filter functions as you like, they nest
|
||
|
template<typename T, typename... Args>
|
||
|
CheckedTransformer(T&& mapping, filter_fn_t filter_fn_1, filter_fn_t filter_fn_2, Args&&... other) :
|
||
|
CheckedTransformer(
|
||
|
std::forward<T>(mapping),
|
||
|
[filter_fn_1, filter_fn_2](std::string a) { return filter_fn_2(filter_fn_1(a)); },
|
||
|
other...)
|
||
|
{
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Helper function to allow ignore_case to be passed to IsMember or Transform
|
||
|
inline std::string ignore_case(std::string item) { return detail::to_lower(item); }
|
||
|
|
||
|
/// Helper function to allow ignore_underscore to be passed to IsMember or Transform
|
||
|
inline std::string ignore_underscore(std::string item) { return detail::remove_underscore(item); }
|
||
|
|
||
|
/// Helper function to allow checks to ignore spaces to be passed to IsMember or Transform
|
||
|
inline std::string ignore_space(std::string item)
|
||
|
{
|
||
|
item.erase(std::remove(std::begin(item), std::end(item), ' '), std::end(item));
|
||
|
item.erase(std::remove(std::begin(item), std::end(item), '\t'), std::end(item));
|
||
|
return item;
|
||
|
}
|
||
|
|
||
|
/// Multiply a number by a factor using given mapping.
|
||
|
/// Can be used to write transforms for SIZE or DURATION inputs.
|
||
|
///
|
||
|
/// Example:
|
||
|
/// With mapping = `{"b"->1, "kb"->1024, "mb"->1024*1024}`
|
||
|
/// one can recognize inputs like "100", "12kb", "100 MB",
|
||
|
/// that will be automatically transformed to 100, 14448, 104857600.
|
||
|
///
|
||
|
/// Output number type matches the type in the provided mapping.
|
||
|
/// Therefore, if it is required to interpret real inputs like "0.42 s",
|
||
|
/// the mapping should be of a type <string, float> or <string, double>.
|
||
|
class AsNumberWithUnit : public Validator
|
||
|
{
|
||
|
public:
|
||
|
/// Adjust AsNumberWithUnit behavior.
|
||
|
/// CASE_SENSITIVE/CASE_INSENSITIVE controls how units are matched.
|
||
|
/// UNIT_OPTIONAL/UNIT_REQUIRED throws ValidationError
|
||
|
/// if UNIT_REQUIRED is set and unit literal is not found.
|
||
|
enum Options
|
||
|
{
|
||
|
CASE_SENSITIVE = 0,
|
||
|
CASE_INSENSITIVE = 1,
|
||
|
UNIT_OPTIONAL = 0,
|
||
|
UNIT_REQUIRED = 2,
|
||
|
DEFAULT = CASE_INSENSITIVE | UNIT_OPTIONAL
|
||
|
};
|
||
|
|
||
|
template<typename Number>
|
||
|
explicit AsNumberWithUnit(std::map<std::string, Number> mapping,
|
||
|
Options opts = DEFAULT,
|
||
|
const std::string& unit_name = "UNIT")
|
||
|
{
|
||
|
description(generate_description<Number>(unit_name, opts));
|
||
|
validate_mapping(mapping, opts);
|
||
|
|
||
|
// transform function
|
||
|
func_ = [mapping, opts](std::string& input) -> std::string {
|
||
|
Number num;
|
||
|
|
||
|
detail::rtrim(input);
|
||
|
if (input.empty())
|
||
|
{
|
||
|
throw ValidationError("Input is empty");
|
||
|
}
|
||
|
|
||
|
// Find split position between number and prefix
|
||
|
auto unit_begin = input.end();
|
||
|
while (unit_begin > input.begin() && std::isalpha(*(unit_begin - 1), std::locale()))
|
||
|
{
|
||
|
--unit_begin;
|
||
|
}
|
||
|
|
||
|
std::string unit{ unit_begin, input.end() };
|
||
|
input.resize(static_cast<size_t>(std::distance(input.begin(), unit_begin)));
|
||
|
detail::trim(input);
|
||
|
|
||
|
if (opts & UNIT_REQUIRED && unit.empty())
|
||
|
{
|
||
|
throw ValidationError("Missing mandatory unit");
|
||
|
}
|
||
|
if (opts & CASE_INSENSITIVE)
|
||
|
{
|
||
|
unit = detail::to_lower(unit);
|
||
|
}
|
||
|
|
||
|
bool converted = detail::lexical_cast(input, num);
|
||
|
if (!converted)
|
||
|
{
|
||
|
throw ValidationError("Value " + input + " could not be converted to " + detail::type_name<Number>());
|
||
|
}
|
||
|
|
||
|
if (unit.empty())
|
||
|
{
|
||
|
// No need to modify input if no unit passed
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
// find corresponding factor
|
||
|
auto it = mapping.find(unit);
|
||
|
if (it == mapping.end())
|
||
|
{
|
||
|
throw ValidationError(unit +
|
||
|
" unit not recognized. "
|
||
|
"Allowed values: " +
|
||
|
detail::generate_map(mapping, true));
|
||
|
}
|
||
|
|
||
|
// perform safe multiplication
|
||
|
bool ok = detail::checked_multiply(num, it->second);
|
||
|
if (!ok)
|
||
|
{
|
||
|
throw ValidationError(detail::as_string(num) + " multiplied by " + unit +
|
||
|
" factor would cause number overflow. Use smaller value.");
|
||
|
}
|
||
|
input = detail::as_string(num);
|
||
|
|
||
|
return {};
|
||
|
};
|
||
|
}
|
||
|
|
||
|
private:
|
||
|
/// Check that mapping contains valid units.
|
||
|
/// Update mapping for CASE_INSENSITIVE mode.
|
||
|
template<typename Number>
|
||
|
static void validate_mapping(std::map<std::string, Number>& mapping, Options opts)
|
||
|
{
|
||
|
for (auto& kv : mapping)
|
||
|
{
|
||
|
if (kv.first.empty())
|
||
|
{
|
||
|
throw ValidationError("Unit must not be empty.");
|
||
|
}
|
||
|
if (!detail::isalpha(kv.first))
|
||
|
{
|
||
|
throw ValidationError("Unit must contain only letters.");
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// make all units lowercase if CASE_INSENSITIVE
|
||
|
if (opts & CASE_INSENSITIVE)
|
||
|
{
|
||
|
std::map<std::string, Number> lower_mapping;
|
||
|
for (auto& kv : mapping)
|
||
|
{
|
||
|
auto s = detail::to_lower(kv.first);
|
||
|
if (lower_mapping.count(s))
|
||
|
{
|
||
|
throw ValidationError("Several matching lowercase unit representations are found: " + s);
|
||
|
}
|
||
|
lower_mapping[detail::to_lower(kv.first)] = kv.second;
|
||
|
}
|
||
|
mapping = std::move(lower_mapping);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Generate description like this: NUMBER [UNIT]
|
||
|
template<typename Number>
|
||
|
static std::string generate_description(const std::string& name, Options opts)
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
out << detail::type_name<Number>() << ' ';
|
||
|
if (opts & UNIT_REQUIRED)
|
||
|
{
|
||
|
out << name;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
out << '[' << name << ']';
|
||
|
}
|
||
|
return out.str();
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Converts a human-readable size string (with unit literal) to uin64_t size.
|
||
|
/// Example:
|
||
|
/// "100" => 100
|
||
|
/// "1 b" => 100
|
||
|
/// "10Kb" => 10240 // you can configure this to be interpreted as kilobyte (*1000) or kibibyte (*1024)
|
||
|
/// "10 KB" => 10240
|
||
|
/// "10 kb" => 10240
|
||
|
/// "10 kib" => 10240 // *i, *ib are always interpreted as *bibyte (*1024)
|
||
|
/// "10kb" => 10240
|
||
|
/// "2 MB" => 2097152
|
||
|
/// "2 EiB" => 2^61 // Units up to exibyte are supported
|
||
|
class AsSizeValue : public AsNumberWithUnit
|
||
|
{
|
||
|
public:
|
||
|
using result_t = uint64_t;
|
||
|
|
||
|
/// If kb_is_1000 is true,
|
||
|
/// interpret 'kb', 'k' as 1000 and 'kib', 'ki' as 1024
|
||
|
/// (same applies to higher order units as well).
|
||
|
/// Otherwise, interpret all literals as factors of 1024.
|
||
|
/// The first option is formally correct, but
|
||
|
/// the second interpretation is more wide-spread
|
||
|
/// (see https://en.wikipedia.org/wiki/Binary_prefix).
|
||
|
explicit AsSizeValue(bool kb_is_1000) :
|
||
|
AsNumberWithUnit(get_mapping(kb_is_1000))
|
||
|
{
|
||
|
if (kb_is_1000)
|
||
|
{
|
||
|
description("SIZE [b, kb(=1000b), kib(=1024b), ...]");
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
description("SIZE [b, kb(=1024b), ...]");
|
||
|
}
|
||
|
}
|
||
|
|
||
|
private:
|
||
|
/// Get <size unit, factor> mapping
|
||
|
static std::map<std::string, result_t> init_mapping(bool kb_is_1000)
|
||
|
{
|
||
|
std::map<std::string, result_t> m;
|
||
|
result_t k_factor = kb_is_1000 ? 1000 : 1024;
|
||
|
result_t ki_factor = 1024;
|
||
|
result_t k = 1;
|
||
|
result_t ki = 1;
|
||
|
m["b"] = 1;
|
||
|
for (std::string p : { "k", "m", "g", "t", "p", "e" })
|
||
|
{
|
||
|
k *= k_factor;
|
||
|
ki *= ki_factor;
|
||
|
m[p] = k;
|
||
|
m[p + "b"] = k;
|
||
|
m[p + "i"] = ki;
|
||
|
m[p + "ib"] = ki;
|
||
|
}
|
||
|
return m;
|
||
|
}
|
||
|
|
||
|
/// Cache calculated mapping
|
||
|
static std::map<std::string, result_t> get_mapping(bool kb_is_1000)
|
||
|
{
|
||
|
if (kb_is_1000)
|
||
|
{
|
||
|
static auto m = init_mapping(true);
|
||
|
return m;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
static auto m = init_mapping(false);
|
||
|
return m;
|
||
|
}
|
||
|
}
|
||
|
};
|
||
|
|
||
|
namespace detail
|
||
|
{
|
||
|
/// Split a string into a program name and command line arguments
|
||
|
/// the string is assumed to contain a file name followed by other arguments
|
||
|
/// the return value contains is a pair with the first argument containing the program name and the second
|
||
|
/// everything else.
|
||
|
inline std::pair<std::string, std::string> split_program_name(std::string commandline)
|
||
|
{
|
||
|
// try to determine the programName
|
||
|
std::pair<std::string, std::string> vals;
|
||
|
trim(commandline);
|
||
|
auto esp = commandline.find_first_of(' ', 1);
|
||
|
while (!ExistingFile(commandline.substr(0, esp)).empty())
|
||
|
{
|
||
|
esp = commandline.find_first_of(' ', esp + 1);
|
||
|
if (esp == std::string::npos)
|
||
|
{
|
||
|
// if we have reached the end and haven't found a valid file just assume the first argument is the
|
||
|
// program name
|
||
|
esp = commandline.find_first_of(' ', 1);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
vals.first = commandline.substr(0, esp);
|
||
|
rtrim(vals.first);
|
||
|
// strip the program name
|
||
|
vals.second = (esp != std::string::npos) ? commandline.substr(esp + 1) : std::string{};
|
||
|
ltrim(vals.second);
|
||
|
return vals;
|
||
|
}
|
||
|
|
||
|
} // namespace detail
|
||
|
/// @}
|
||
|
|
||
|
} // namespace CLI
|
||
|
|
||
|
// From CLI/FormatterFwd.hpp:
|
||
|
|
||
|
namespace CLI
|
||
|
{
|
||
|
class Option;
|
||
|
class App;
|
||
|
|
||
|
/// This enum signifies the type of help requested
|
||
|
///
|
||
|
/// This is passed in by App; all user classes must accept this as
|
||
|
/// the second argument.
|
||
|
|
||
|
enum class AppFormatMode
|
||
|
{
|
||
|
Normal, //< The normal, detailed help
|
||
|
All, //< A fully expanded help
|
||
|
Sub, //< Used when printed as part of expanded subcommand
|
||
|
};
|
||
|
|
||
|
/// This is the minimum requirements to run a formatter.
|
||
|
///
|
||
|
/// A user can subclass this is if they do not care at all
|
||
|
/// about the structure in CLI::Formatter.
|
||
|
class FormatterBase
|
||
|
{
|
||
|
protected:
|
||
|
/// @name Options
|
||
|
///@{
|
||
|
|
||
|
/// The width of the first column
|
||
|
size_t column_width_{ 30 };
|
||
|
|
||
|
/// @brief The required help printout labels (user changeable)
|
||
|
/// Values are Needs, Excludes, etc.
|
||
|
std::map<std::string, std::string> labels_;
|
||
|
|
||
|
///@}
|
||
|
/// @name Basic
|
||
|
///@{
|
||
|
|
||
|
public:
|
||
|
FormatterBase() = default;
|
||
|
FormatterBase(const FormatterBase&) = default;
|
||
|
FormatterBase(FormatterBase&&) = default;
|
||
|
|
||
|
/// Adding a destructor in this form to work around bug in GCC 4.7
|
||
|
virtual ~FormatterBase() noexcept {} // NOLINT(modernize-use-equals-default)
|
||
|
|
||
|
/// This is the key method that puts together help
|
||
|
virtual std::string make_help(const App*, std::string, AppFormatMode) const = 0;
|
||
|
|
||
|
///@}
|
||
|
/// @name Setters
|
||
|
///@{
|
||
|
|
||
|
/// Set the "REQUIRED" label
|
||
|
void label(std::string key, std::string val) { labels_[key] = val; }
|
||
|
|
||
|
/// Set the column width
|
||
|
void column_width(size_t val) { column_width_ = val; }
|
||
|
|
||
|
///@}
|
||
|
/// @name Getters
|
||
|
///@{
|
||
|
|
||
|
/// Get the current value of a name (REQUIRED, etc.)
|
||
|
std::string get_label(std::string key) const
|
||
|
{
|
||
|
if (labels_.find(key) == labels_.end())
|
||
|
return key;
|
||
|
else
|
||
|
return labels_.at(key);
|
||
|
}
|
||
|
|
||
|
/// Get the current column width
|
||
|
size_t get_column_width() const { return column_width_; }
|
||
|
|
||
|
///@}
|
||
|
};
|
||
|
|
||
|
/// This is a specialty override for lambda functions
|
||
|
class FormatterLambda final : public FormatterBase
|
||
|
{
|
||
|
using funct_t = std::function<std::string(const App*, std::string, AppFormatMode)>;
|
||
|
|
||
|
/// The lambda to hold and run
|
||
|
funct_t lambda_;
|
||
|
|
||
|
public:
|
||
|
/// Create a FormatterLambda with a lambda function
|
||
|
explicit FormatterLambda(funct_t funct) :
|
||
|
lambda_(std::move(funct)) {}
|
||
|
|
||
|
/// Adding a destructor (mostly to make GCC 4.7 happy)
|
||
|
~FormatterLambda() noexcept override {} // NOLINT(modernize-use-equals-default)
|
||
|
|
||
|
/// This will simply call the lambda function
|
||
|
std::string make_help(const App* app, std::string name, AppFormatMode mode) const override
|
||
|
{
|
||
|
return lambda_(app, name, mode);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// This is the default Formatter for CLI11. It pretty prints help output, and is broken into quite a few
|
||
|
/// overridable methods, to be highly customizable with minimal effort.
|
||
|
class Formatter : public FormatterBase
|
||
|
{
|
||
|
public:
|
||
|
Formatter() = default;
|
||
|
Formatter(const Formatter&) = default;
|
||
|
Formatter(Formatter&&) = default;
|
||
|
|
||
|
/// @name Overridables
|
||
|
///@{
|
||
|
|
||
|
/// This prints out a group of options with title
|
||
|
///
|
||
|
virtual std::string make_group(std::string group, bool is_positional, std::vector<const Option*> opts) const;
|
||
|
|
||
|
/// This prints out just the positionals "group"
|
||
|
virtual std::string make_positionals(const App* app) const;
|
||
|
|
||
|
/// This prints out all the groups of options
|
||
|
std::string make_groups(const App* app, AppFormatMode mode) const;
|
||
|
|
||
|
/// This prints out all the subcommands
|
||
|
virtual std::string make_subcommands(const App* app, AppFormatMode mode) const;
|
||
|
|
||
|
/// This prints out a subcommand
|
||
|
virtual std::string make_subcommand(const App* sub) const;
|
||
|
|
||
|
/// This prints out a subcommand in help-all
|
||
|
virtual std::string make_expanded(const App* sub) const;
|
||
|
|
||
|
/// This prints out all the groups of options
|
||
|
virtual std::string make_footer(const App* app) const;
|
||
|
|
||
|
/// This displays the description line
|
||
|
virtual std::string make_description(const App* app) const;
|
||
|
|
||
|
/// This displays the usage line
|
||
|
virtual std::string make_usage(const App* app, std::string name) const;
|
||
|
|
||
|
/// This puts everything together
|
||
|
std::string make_help(const App*, std::string, AppFormatMode) const override;
|
||
|
|
||
|
///@}
|
||
|
/// @name Options
|
||
|
///@{
|
||
|
|
||
|
/// This prints out an option help line, either positional or optional form
|
||
|
virtual std::string make_option(const Option* opt, bool is_positional) const
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
detail::format_help(
|
||
|
out, make_option_name(opt, is_positional) + make_option_opts(opt), make_option_desc(opt), column_width_);
|
||
|
return out.str();
|
||
|
}
|
||
|
|
||
|
/// @brief This is the name part of an option, Default: left column
|
||
|
virtual std::string make_option_name(const Option*, bool) const;
|
||
|
|
||
|
/// @brief This is the options part of the name, Default: combined into left column
|
||
|
virtual std::string make_option_opts(const Option*) const;
|
||
|
|
||
|
/// @brief This is the description. Default: Right column, on new line if left column too large
|
||
|
virtual std::string make_option_desc(const Option*) const;
|
||
|
|
||
|
/// @brief This is used to print the name on the USAGE line
|
||
|
virtual std::string make_option_usage(const Option* opt) const;
|
||
|
|
||
|
///@}
|
||
|
};
|
||
|
|
||
|
} // namespace CLI
|
||
|
|
||
|
// From CLI/Option.hpp:
|
||
|
|
||
|
namespace CLI
|
||
|
{
|
||
|
using results_t = std::vector<std::string>;
|
||
|
using callback_t = std::function<bool(results_t)>;
|
||
|
|
||
|
class Option;
|
||
|
class App;
|
||
|
|
||
|
using Option_p = std::unique_ptr<Option>;
|
||
|
|
||
|
enum class MultiOptionPolicy : char
|
||
|
{
|
||
|
Throw,
|
||
|
TakeLast,
|
||
|
TakeFirst,
|
||
|
Join
|
||
|
};
|
||
|
|
||
|
/// This is the CRTP base class for Option and OptionDefaults. It was designed this way
|
||
|
/// to share parts of the class; an OptionDefaults can copy to an Option.
|
||
|
template<typename CRTP>
|
||
|
class OptionBase
|
||
|
{
|
||
|
friend App;
|
||
|
|
||
|
protected:
|
||
|
/// The group membership
|
||
|
std::string group_ = std::string("Options");
|
||
|
|
||
|
/// True if this is a required option
|
||
|
bool required_{ false };
|
||
|
|
||
|
/// Ignore the case when matching (option, not value)
|
||
|
bool ignore_case_{ false };
|
||
|
|
||
|
/// Ignore underscores when matching (option, not value)
|
||
|
bool ignore_underscore_{ false };
|
||
|
|
||
|
/// Allow this option to be given in a configuration file
|
||
|
bool configurable_{ true };
|
||
|
|
||
|
/// Disable overriding flag values with '=value'
|
||
|
bool disable_flag_override_{ false };
|
||
|
|
||
|
/// Specify a delimiter character for vector arguments
|
||
|
char delimiter_{ '\0' };
|
||
|
|
||
|
/// Automatically capture default value
|
||
|
bool always_capture_default_{ false };
|
||
|
|
||
|
/// Policy for multiple arguments when `expected_ == 1` (can be set on bool flags, too)
|
||
|
MultiOptionPolicy multi_option_policy_{ MultiOptionPolicy::Throw };
|
||
|
|
||
|
/// Copy the contents to another similar class (one based on OptionBase)
|
||
|
template<typename T>
|
||
|
void copy_to(T* other) const
|
||
|
{
|
||
|
other->group(group_);
|
||
|
other->required(required_);
|
||
|
other->ignore_case(ignore_case_);
|
||
|
other->ignore_underscore(ignore_underscore_);
|
||
|
other->configurable(configurable_);
|
||
|
other->disable_flag_override(disable_flag_override_);
|
||
|
other->delimiter(delimiter_);
|
||
|
other->always_capture_default(always_capture_default_);
|
||
|
other->multi_option_policy(multi_option_policy_);
|
||
|
}
|
||
|
|
||
|
public:
|
||
|
// setters
|
||
|
|
||
|
/// Changes the group membership
|
||
|
CRTP* group(std::string name)
|
||
|
{
|
||
|
group_ = name;
|
||
|
return static_cast<CRTP*>(this);
|
||
|
}
|
||
|
|
||
|
/// Set the option as required
|
||
|
CRTP* required(bool value = true)
|
||
|
{
|
||
|
required_ = value;
|
||
|
return static_cast<CRTP*>(this);
|
||
|
}
|
||
|
|
||
|
/// Support Plumbum term
|
||
|
CRTP* mandatory(bool value = true) { return required(value); }
|
||
|
|
||
|
CRTP* always_capture_default(bool value = true)
|
||
|
{
|
||
|
always_capture_default_ = value;
|
||
|
return static_cast<CRTP*>(this);
|
||
|
}
|
||
|
|
||
|
// Getters
|
||
|
|
||
|
/// Get the group of this option
|
||
|
const std::string& get_group() const { return group_; }
|
||
|
|
||
|
/// True if this is a required option
|
||
|
bool get_required() const { return required_; }
|
||
|
|
||
|
/// The status of ignore case
|
||
|
bool get_ignore_case() const { return ignore_case_; }
|
||
|
|
||
|
/// The status of ignore_underscore
|
||
|
bool get_ignore_underscore() const { return ignore_underscore_; }
|
||
|
|
||
|
/// The status of configurable
|
||
|
bool get_configurable() const { return configurable_; }
|
||
|
|
||
|
/// The status of configurable
|
||
|
bool get_disable_flag_override() const { return disable_flag_override_; }
|
||
|
|
||
|
/// Get the current delimeter char
|
||
|
char get_delimiter() const { return delimiter_; }
|
||
|
|
||
|
/// Return true if this will automatically capture the default value for help printing
|
||
|
bool get_always_capture_default() const { return always_capture_default_; }
|
||
|
|
||
|
/// The status of the multi option policy
|
||
|
MultiOptionPolicy get_multi_option_policy() const { return multi_option_policy_; }
|
||
|
|
||
|
// Shortcuts for multi option policy
|
||
|
|
||
|
/// Set the multi option policy to take last
|
||
|
CRTP* take_last()
|
||
|
{
|
||
|
auto self = static_cast<CRTP*>(this);
|
||
|
self->multi_option_policy(MultiOptionPolicy::TakeLast);
|
||
|
return self;
|
||
|
}
|
||
|
|
||
|
/// Set the multi option policy to take last
|
||
|
CRTP* take_first()
|
||
|
{
|
||
|
auto self = static_cast<CRTP*>(this);
|
||
|
self->multi_option_policy(MultiOptionPolicy::TakeFirst);
|
||
|
return self;
|
||
|
}
|
||
|
|
||
|
/// Set the multi option policy to take last
|
||
|
CRTP* join()
|
||
|
{
|
||
|
auto self = static_cast<CRTP*>(this);
|
||
|
self->multi_option_policy(MultiOptionPolicy::Join);
|
||
|
return self;
|
||
|
}
|
||
|
|
||
|
/// Allow in a configuration file
|
||
|
CRTP* configurable(bool value = true)
|
||
|
{
|
||
|
configurable_ = value;
|
||
|
return static_cast<CRTP*>(this);
|
||
|
}
|
||
|
|
||
|
/// Allow in a configuration file
|
||
|
CRTP* delimiter(char value = '\0')
|
||
|
{
|
||
|
delimiter_ = value;
|
||
|
return static_cast<CRTP*>(this);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// This is a version of OptionBase that only supports setting values,
|
||
|
/// for defaults. It is stored as the default option in an App.
|
||
|
class OptionDefaults : public OptionBase<OptionDefaults>
|
||
|
{
|
||
|
public:
|
||
|
OptionDefaults() = default;
|
||
|
|
||
|
// Methods here need a different implementation if they are Option vs. OptionDefault
|
||
|
|
||
|
/// Take the last argument if given multiple times
|
||
|
OptionDefaults* multi_option_policy(MultiOptionPolicy value = MultiOptionPolicy::Throw)
|
||
|
{
|
||
|
multi_option_policy_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Ignore the case of the option name
|
||
|
OptionDefaults* ignore_case(bool value = true)
|
||
|
{
|
||
|
ignore_case_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Ignore underscores in the option name
|
||
|
OptionDefaults* ignore_underscore(bool value = true)
|
||
|
{
|
||
|
ignore_underscore_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Disable overriding flag values with an '=<value>' segment
|
||
|
OptionDefaults* disable_flag_override(bool value = true)
|
||
|
{
|
||
|
disable_flag_override_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// set a delimiter character to split up single arguments to treat as multiple inputs
|
||
|
OptionDefaults* delimiter(char value = '\0')
|
||
|
{
|
||
|
delimiter_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
class Option : public OptionBase<Option>
|
||
|
{
|
||
|
friend App;
|
||
|
|
||
|
protected:
|
||
|
/// @name Names
|
||
|
///@{
|
||
|
|
||
|
/// A list of the short names (`-a`) without the leading dashes
|
||
|
std::vector<std::string> snames_;
|
||
|
|
||
|
/// A list of the long names (`--a`) without the leading dashes
|
||
|
std::vector<std::string> lnames_;
|
||
|
|
||
|
/// A list of the flag names with the appropriate default value, the first part of the pair should be duplicates of
|
||
|
/// what is in snames or lnames but will trigger a particular response on a flag
|
||
|
std::vector<std::pair<std::string, std::string>> default_flag_values_;
|
||
|
|
||
|
/// a list of flag names with specified default values;
|
||
|
std::vector<std::string> fnames_;
|
||
|
|
||
|
/// A positional name
|
||
|
std::string pname_;
|
||
|
|
||
|
/// If given, check the environment for this option
|
||
|
std::string envname_;
|
||
|
|
||
|
///@}
|
||
|
/// @name Help
|
||
|
///@{
|
||
|
|
||
|
/// The description for help strings
|
||
|
std::string description_;
|
||
|
|
||
|
/// A human readable default value, either manually set, captured, or captured by default
|
||
|
std::string default_str_;
|
||
|
|
||
|
/// A human readable type value, set when App creates this
|
||
|
///
|
||
|
/// This is a lambda function so "types" can be dynamic, such as when a set prints its contents.
|
||
|
std::function<std::string()> type_name_{ []() { return std::string(); } };
|
||
|
|
||
|
/// Run this function to capture a default (ignore if empty)
|
||
|
std::function<std::string()> default_function_;
|
||
|
|
||
|
///@}
|
||
|
/// @name Configuration
|
||
|
///@{
|
||
|
|
||
|
/// The number of arguments that make up one option. -1=unlimited (vector-like), 0=flag, 1=normal option,
|
||
|
/// 2=complex/pair, etc. Set only when the option is created; this is intrinsic to the type. Eventually, -2 may mean
|
||
|
/// vector of pairs.
|
||
|
int type_size_{ 1 };
|
||
|
|
||
|
/// The number of expected values, type_size_ must be < 0. Ignored for flag. N < 0 means at least -N values.
|
||
|
int expected_{ 1 };
|
||
|
|
||
|
/// A list of validators to run on each value parsed
|
||
|
std::vector<Validator> validators_;
|
||
|
|
||
|
/// A list of options that are required with this option
|
||
|
std::set<Option*> needs_;
|
||
|
|
||
|
/// A list of options that are excluded with this option
|
||
|
std::set<Option*> excludes_;
|
||
|
|
||
|
///@}
|
||
|
/// @name Other
|
||
|
///@{
|
||
|
|
||
|
/// Remember the parent app
|
||
|
App* parent_;
|
||
|
|
||
|
/// Options store a callback to do all the work
|
||
|
callback_t callback_;
|
||
|
|
||
|
///@}
|
||
|
/// @name Parsing results
|
||
|
///@{
|
||
|
|
||
|
/// Results of parsing
|
||
|
results_t results_;
|
||
|
|
||
|
/// Whether the callback has run (needed for INI parsing)
|
||
|
bool callback_run_{ false };
|
||
|
|
||
|
///@}
|
||
|
|
||
|
/// Making an option by hand is not defined, it must be made by the App class
|
||
|
Option(std::string option_name,
|
||
|
std::string option_description,
|
||
|
std::function<bool(results_t)> callback,
|
||
|
App* parent) :
|
||
|
description_(std::move(option_description)),
|
||
|
parent_(parent),
|
||
|
callback_(std::move(callback))
|
||
|
{
|
||
|
std::tie(snames_, lnames_, pname_) = detail::get_names(detail::split_names(option_name));
|
||
|
}
|
||
|
|
||
|
public:
|
||
|
/// @name Basic
|
||
|
///@{
|
||
|
|
||
|
/// Count the total number of times an option was passed
|
||
|
size_t count() const { return results_.size(); }
|
||
|
|
||
|
/// True if the option was not passed
|
||
|
size_t empty() const { return results_.empty(); }
|
||
|
|
||
|
/// This class is true if option is passed.
|
||
|
operator bool() const { return !empty(); }
|
||
|
|
||
|
/// Clear the parsed results (mostly for testing)
|
||
|
void clear() { results_.clear(); }
|
||
|
|
||
|
///@}
|
||
|
/// @name Setting options
|
||
|
///@{
|
||
|
|
||
|
/// Set the number of expected arguments (Flags don't use this)
|
||
|
Option* expected(int value)
|
||
|
{
|
||
|
// Break if this is a flag
|
||
|
if (type_size_ == 0)
|
||
|
throw IncorrectConstruction::SetFlag(get_name(true, true));
|
||
|
|
||
|
// Setting 0 is not allowed
|
||
|
else if (value == 0)
|
||
|
throw IncorrectConstruction::Set0Opt(get_name());
|
||
|
|
||
|
// No change is okay, quit now
|
||
|
else if (expected_ == value)
|
||
|
return this;
|
||
|
|
||
|
// Type must be a vector
|
||
|
else if (type_size_ >= 0)
|
||
|
throw IncorrectConstruction::ChangeNotVector(get_name());
|
||
|
|
||
|
// TODO: Can support multioption for non-1 values (except for join)
|
||
|
else if (value != 1 && multi_option_policy_ != MultiOptionPolicy::Throw)
|
||
|
throw IncorrectConstruction::AfterMultiOpt(get_name());
|
||
|
|
||
|
expected_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Adds a Validator with a built in type name
|
||
|
Option* check(Validator validator, std::string validator_name = "")
|
||
|
{
|
||
|
validator.non_modifying();
|
||
|
validators_.push_back(std::move(validator));
|
||
|
if (!validator_name.empty())
|
||
|
validators_.front().name(validator_name);
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Adds a Validator. Takes a const string& and returns an error message (empty if conversion/check is okay).
|
||
|
Option* check(std::function<std::string(const std::string&)> validator,
|
||
|
std::string validator_description = "",
|
||
|
std::string validator_name = "")
|
||
|
{
|
||
|
validators_.emplace_back(validator, std::move(validator_description), std::move(validator_name));
|
||
|
validators_.back().non_modifying();
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Adds a transforming validator with a built in type name
|
||
|
Option* transform(Validator validator, std::string validator_name = "")
|
||
|
{
|
||
|
validators_.insert(validators_.begin(), std::move(validator));
|
||
|
if (!validator_name.empty())
|
||
|
validators_.front().name(validator_name);
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Adds a validator-like function that can change result
|
||
|
Option* transform(std::function<std::string(std::string)> func,
|
||
|
std::string transform_description = "",
|
||
|
std::string transform_name = "")
|
||
|
{
|
||
|
validators_.insert(validators_.begin(),
|
||
|
Validator(
|
||
|
[func](std::string& val) {
|
||
|
val = func(val);
|
||
|
return std::string{};
|
||
|
},
|
||
|
std::move(transform_description),
|
||
|
std::move(transform_name)));
|
||
|
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Adds a user supplied function to run on each item passed in (communicate though lambda capture)
|
||
|
Option* each(std::function<void(std::string)> func)
|
||
|
{
|
||
|
validators_.emplace_back(
|
||
|
[func](std::string& inout) {
|
||
|
func(inout);
|
||
|
return std::string{};
|
||
|
},
|
||
|
std::string{});
|
||
|
return this;
|
||
|
}
|
||
|
/// Get a named Validator
|
||
|
Validator* get_validator(const std::string& validator_name = "")
|
||
|
{
|
||
|
for (auto& validator : validators_)
|
||
|
{
|
||
|
if (validator_name == validator.get_name())
|
||
|
{
|
||
|
return &validator;
|
||
|
}
|
||
|
}
|
||
|
if ((validator_name.empty()) && (!validators_.empty()))
|
||
|
{
|
||
|
return &(validators_.front());
|
||
|
}
|
||
|
throw OptionNotFound(std::string("Validator ") + validator_name + " Not Found");
|
||
|
}
|
||
|
/// Sets required options
|
||
|
Option* needs(Option* opt)
|
||
|
{
|
||
|
auto tup = needs_.insert(opt);
|
||
|
if (!tup.second)
|
||
|
throw OptionAlreadyAdded::Requires(get_name(), opt->get_name());
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Can find a string if needed
|
||
|
template<typename T = App>
|
||
|
Option* needs(std::string opt_name)
|
||
|
{
|
||
|
for (const Option_p& opt : dynamic_cast<T*>(parent_)->options_)
|
||
|
if (opt.get() != this && opt->check_name(opt_name))
|
||
|
return needs(opt.get());
|
||
|
throw IncorrectConstruction::MissingOption(opt_name);
|
||
|
}
|
||
|
|
||
|
/// Any number supported, any mix of string and Opt
|
||
|
template<typename A, typename B, typename... ARG>
|
||
|
Option* needs(A opt, B opt1, ARG... args)
|
||
|
{
|
||
|
needs(opt);
|
||
|
return needs(opt1, args...);
|
||
|
}
|
||
|
|
||
|
/// Remove needs link from an option. Returns true if the option really was in the needs list.
|
||
|
bool remove_needs(Option* opt)
|
||
|
{
|
||
|
auto iterator = std::find(std::begin(needs_), std::end(needs_), opt);
|
||
|
|
||
|
if (iterator != std::end(needs_))
|
||
|
{
|
||
|
needs_.erase(iterator);
|
||
|
return true;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Sets excluded options
|
||
|
Option* excludes(Option* opt)
|
||
|
{
|
||
|
excludes_.insert(opt);
|
||
|
|
||
|
// Help text should be symmetric - excluding a should exclude b
|
||
|
opt->excludes_.insert(this);
|
||
|
|
||
|
// Ignoring the insert return value, excluding twice is now allowed.
|
||
|
// (Mostly to allow both directions to be excluded by user, even though the library does it for you.)
|
||
|
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Can find a string if needed
|
||
|
template<typename T = App>
|
||
|
Option* excludes(std::string opt_name)
|
||
|
{
|
||
|
for (const Option_p& opt : dynamic_cast<T*>(parent_)->options_)
|
||
|
if (opt.get() != this && opt->check_name(opt_name))
|
||
|
return excludes(opt.get());
|
||
|
throw IncorrectConstruction::MissingOption(opt_name);
|
||
|
}
|
||
|
|
||
|
/// Any number supported, any mix of string and Opt
|
||
|
template<typename A, typename B, typename... ARG>
|
||
|
Option* excludes(A opt, B opt1, ARG... args)
|
||
|
{
|
||
|
excludes(opt);
|
||
|
return excludes(opt1, args...);
|
||
|
}
|
||
|
|
||
|
/// Remove needs link from an option. Returns true if the option really was in the needs list.
|
||
|
bool remove_excludes(Option* opt)
|
||
|
{
|
||
|
auto iterator = std::find(std::begin(excludes_), std::end(excludes_), opt);
|
||
|
|
||
|
if (iterator != std::end(excludes_))
|
||
|
{
|
||
|
excludes_.erase(iterator);
|
||
|
return true;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Sets environment variable to read if no option given
|
||
|
Option* envname(std::string name)
|
||
|
{
|
||
|
envname_ = name;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Ignore case
|
||
|
///
|
||
|
/// The template hides the fact that we don't have the definition of App yet.
|
||
|
/// You are never expected to add an argument to the template here.
|
||
|
template<typename T = App>
|
||
|
Option* ignore_case(bool value = true)
|
||
|
{
|
||
|
ignore_case_ = value;
|
||
|
auto* parent = dynamic_cast<T*>(parent_);
|
||
|
|
||
|
for (const Option_p& opt : parent->options_)
|
||
|
if (opt.get() != this && *opt == *this)
|
||
|
throw OptionAlreadyAdded(opt->get_name(true, true));
|
||
|
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Ignore underscores in the option names
|
||
|
///
|
||
|
/// The template hides the fact that we don't have the definition of App yet.
|
||
|
/// You are never expected to add an argument to the template here.
|
||
|
template<typename T = App>
|
||
|
Option* ignore_underscore(bool value = true)
|
||
|
{
|
||
|
ignore_underscore_ = value;
|
||
|
auto* parent = dynamic_cast<T*>(parent_);
|
||
|
for (const Option_p& opt : parent->options_)
|
||
|
if (opt.get() != this && *opt == *this)
|
||
|
throw OptionAlreadyAdded(opt->get_name(true, true));
|
||
|
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Take the last argument if given multiple times (or another policy)
|
||
|
Option* multi_option_policy(MultiOptionPolicy value = MultiOptionPolicy::Throw)
|
||
|
{
|
||
|
if (get_items_expected() < 0)
|
||
|
throw IncorrectConstruction::MultiOptionPolicy(get_name());
|
||
|
multi_option_policy_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// disable flag overrides
|
||
|
Option* disable_flag_override(bool value = true)
|
||
|
{
|
||
|
disable_flag_override_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
///@}
|
||
|
/// @name Accessors
|
||
|
///@{
|
||
|
|
||
|
/// The number of arguments the option expects
|
||
|
int get_type_size() const { return type_size_; }
|
||
|
|
||
|
/// The environment variable associated to this value
|
||
|
std::string get_envname() const { return envname_; }
|
||
|
|
||
|
/// The set of options needed
|
||
|
std::set<Option*> get_needs() const { return needs_; }
|
||
|
|
||
|
/// The set of options excluded
|
||
|
std::set<Option*> get_excludes() const { return excludes_; }
|
||
|
|
||
|
/// The default value (for help printing) DEPRECATED Use get_default_str() instead
|
||
|
CLI11_DEPRECATED("Use get_default_str() instead")
|
||
|
std::string get_defaultval() const { return default_str_; }
|
||
|
|
||
|
/// The default value (for help printing)
|
||
|
std::string get_default_str() const { return default_str_; }
|
||
|
|
||
|
/// Get the callback function
|
||
|
callback_t get_callback() const { return callback_; }
|
||
|
|
||
|
/// Get the long names
|
||
|
const std::vector<std::string> get_lnames() const { return lnames_; }
|
||
|
|
||
|
/// Get the short names
|
||
|
const std::vector<std::string> get_snames() const { return snames_; }
|
||
|
|
||
|
/// get the flag names with specified default values
|
||
|
const std::vector<std::string> get_fnames() const { return fnames_; }
|
||
|
|
||
|
/// The number of times the option expects to be included
|
||
|
int get_expected() const { return expected_; }
|
||
|
|
||
|
/// \brief The total number of expected values (including the type)
|
||
|
/// This is positive if exactly this number is expected, and negative for at least N values
|
||
|
///
|
||
|
/// v = fabs(size_type*expected)
|
||
|
/// !MultiOptionPolicy::Throw
|
||
|
/// | Expected < 0 | Expected == 0 | Expected > 0
|
||
|
/// Size < 0 | -v | 0 | -v
|
||
|
/// Size == 0 | 0 | 0 | 0
|
||
|
/// Size > 0 | -v | 0 | -v // Expected must be 1
|
||
|
///
|
||
|
/// MultiOptionPolicy::Throw
|
||
|
/// | Expected < 0 | Expected == 0 | Expected > 0
|
||
|
/// Size < 0 | -v | 0 | v
|
||
|
/// Size == 0 | 0 | 0 | 0
|
||
|
/// Size > 0 | v | 0 | v // Expected must be 1
|
||
|
///
|
||
|
int get_items_expected() const
|
||
|
{
|
||
|
return std::abs(type_size_ * expected_) *
|
||
|
((multi_option_policy_ != MultiOptionPolicy::Throw || (expected_ < 0 && type_size_ < 0) ? -1 : 1));
|
||
|
}
|
||
|
|
||
|
/// True if the argument can be given directly
|
||
|
bool get_positional() const { return pname_.length() > 0; }
|
||
|
|
||
|
/// True if option has at least one non-positional name
|
||
|
bool nonpositional() const { return (snames_.size() + lnames_.size()) > 0; }
|
||
|
|
||
|
/// True if option has description
|
||
|
bool has_description() const { return description_.length() > 0; }
|
||
|
|
||
|
/// Get the description
|
||
|
const std::string& get_description() const { return description_; }
|
||
|
|
||
|
/// Set the description
|
||
|
Option* description(std::string option_description)
|
||
|
{
|
||
|
description_ = std::move(option_description);
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
///@}
|
||
|
/// @name Help tools
|
||
|
///@{
|
||
|
|
||
|
/// \brief Gets a comma separated list of names.
|
||
|
/// Will include / prefer the positional name if positional is true.
|
||
|
/// If all_options is false, pick just the most descriptive name to show.
|
||
|
/// Use `get_name(true)` to get the positional name (replaces `get_pname`)
|
||
|
std::string get_name(bool positional = false, //<[input] Show the positional name
|
||
|
bool all_options = false //<[input] Show every option
|
||
|
) const
|
||
|
{
|
||
|
if (all_options)
|
||
|
{
|
||
|
std::vector<std::string> name_list;
|
||
|
|
||
|
/// The all list will never include a positional unless asked or that's the only name.
|
||
|
if ((positional && pname_.length()) || (snames_.empty() && lnames_.empty()))
|
||
|
name_list.push_back(pname_);
|
||
|
if ((get_items_expected() == 0) && (!fnames_.empty()))
|
||
|
{
|
||
|
for (const std::string& sname : snames_)
|
||
|
{
|
||
|
name_list.push_back("-" + sname);
|
||
|
if (check_fname(sname))
|
||
|
{
|
||
|
name_list.back() += "{" + get_flag_value(sname, "") + "}";
|
||
|
}
|
||
|
}
|
||
|
|
||
|
for (const std::string& lname : lnames_)
|
||
|
{
|
||
|
name_list.push_back("--" + lname);
|
||
|
if (check_fname(lname))
|
||
|
{
|
||
|
name_list.back() += "{" + get_flag_value(lname, "") + "}";
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
for (const std::string& sname : snames_)
|
||
|
name_list.push_back("-" + sname);
|
||
|
|
||
|
for (const std::string& lname : lnames_)
|
||
|
name_list.push_back("--" + lname);
|
||
|
}
|
||
|
|
||
|
return detail::join(name_list);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
// This returns the positional name no matter what
|
||
|
if (positional)
|
||
|
return pname_;
|
||
|
|
||
|
// Prefer long name
|
||
|
else if (!lnames_.empty())
|
||
|
return std::string("--") + lnames_[0];
|
||
|
|
||
|
// Or short name if no long name
|
||
|
else if (!snames_.empty())
|
||
|
return std::string("-") + snames_[0];
|
||
|
|
||
|
// If positional is the only name, it's okay to use that
|
||
|
else
|
||
|
return pname_;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
///@}
|
||
|
/// @name Parser tools
|
||
|
///@{
|
||
|
|
||
|
/// Process the callback
|
||
|
void run_callback()
|
||
|
{
|
||
|
callback_run_ = true;
|
||
|
|
||
|
// Run the validators (can change the string)
|
||
|
if (!validators_.empty())
|
||
|
{
|
||
|
for (std::string& result : results_)
|
||
|
{
|
||
|
auto err_msg = _validate(result);
|
||
|
if (!err_msg.empty())
|
||
|
throw ValidationError(get_name(), err_msg);
|
||
|
}
|
||
|
}
|
||
|
if (!(callback_))
|
||
|
{
|
||
|
return;
|
||
|
}
|
||
|
bool local_result;
|
||
|
|
||
|
// Num items expected or length of vector, always at least 1
|
||
|
// Only valid for a trimming policy
|
||
|
int trim_size =
|
||
|
std::min<int>(std::max<int>(std::abs(get_items_expected()), 1), static_cast<int>(results_.size()));
|
||
|
|
||
|
// Operation depends on the policy setting
|
||
|
if (multi_option_policy_ == MultiOptionPolicy::TakeLast)
|
||
|
{
|
||
|
// Allow multi-option sizes (including 0)
|
||
|
results_t partial_result{ results_.end() - trim_size, results_.end() };
|
||
|
local_result = !callback_(partial_result);
|
||
|
}
|
||
|
else if (multi_option_policy_ == MultiOptionPolicy::TakeFirst)
|
||
|
{
|
||
|
results_t partial_result{ results_.begin(), results_.begin() + trim_size };
|
||
|
local_result = !callback_(partial_result);
|
||
|
}
|
||
|
else if (multi_option_policy_ == MultiOptionPolicy::Join)
|
||
|
{
|
||
|
results_t partial_result = { detail::join(results_, "\n") };
|
||
|
local_result = !callback_(partial_result);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
// Exact number required
|
||
|
if (get_items_expected() > 0)
|
||
|
{
|
||
|
if (results_.size() != static_cast<size_t>(get_items_expected()))
|
||
|
throw ArgumentMismatch(get_name(), get_items_expected(), results_.size());
|
||
|
// Variable length list
|
||
|
}
|
||
|
else if (get_items_expected() < 0)
|
||
|
{
|
||
|
// Require that this be a multiple of expected size and at least as many as expected
|
||
|
if (results_.size() < static_cast<size_t>(-get_items_expected()) ||
|
||
|
results_.size() % static_cast<size_t>(std::abs(get_type_size())) != 0u)
|
||
|
throw ArgumentMismatch(get_name(), get_items_expected(), results_.size());
|
||
|
}
|
||
|
local_result = !callback_(results_);
|
||
|
}
|
||
|
|
||
|
if (local_result)
|
||
|
throw ConversionError(get_name(), results_);
|
||
|
}
|
||
|
|
||
|
/// If options share any of the same names, they are equal (not counting positional)
|
||
|
bool operator==(const Option& other) const
|
||
|
{
|
||
|
for (const std::string& sname : snames_)
|
||
|
if (other.check_sname(sname))
|
||
|
return true;
|
||
|
for (const std::string& lname : lnames_)
|
||
|
if (other.check_lname(lname))
|
||
|
return true;
|
||
|
|
||
|
if (ignore_case_ ||
|
||
|
ignore_underscore_)
|
||
|
{ // We need to do the inverse, in case we are ignore_case or ignore underscore
|
||
|
for (const std::string& sname : other.snames_)
|
||
|
if (check_sname(sname))
|
||
|
return true;
|
||
|
for (const std::string& lname : other.lnames_)
|
||
|
if (check_lname(lname))
|
||
|
return true;
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
/// Check a name. Requires "-" or "--" for short / long, supports positional name
|
||
|
bool check_name(std::string name) const
|
||
|
{
|
||
|
if (name.length() > 2 && name[0] == '-' && name[1] == '-')
|
||
|
return check_lname(name.substr(2));
|
||
|
else if (name.length() > 1 && name.front() == '-')
|
||
|
return check_sname(name.substr(1));
|
||
|
else
|
||
|
{
|
||
|
std::string local_pname = pname_;
|
||
|
if (ignore_underscore_)
|
||
|
{
|
||
|
local_pname = detail::remove_underscore(local_pname);
|
||
|
name = detail::remove_underscore(name);
|
||
|
}
|
||
|
if (ignore_case_)
|
||
|
{
|
||
|
local_pname = detail::to_lower(local_pname);
|
||
|
name = detail::to_lower(name);
|
||
|
}
|
||
|
return name == local_pname;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Requires "-" to be removed from string
|
||
|
bool check_sname(std::string name) const { return (detail::find_member(name, snames_, ignore_case_) >= 0); }
|
||
|
|
||
|
/// Requires "--" to be removed from string
|
||
|
bool check_lname(std::string name) const
|
||
|
{
|
||
|
return (detail::find_member(name, lnames_, ignore_case_, ignore_underscore_) >= 0);
|
||
|
}
|
||
|
|
||
|
/// Requires "--" to be removed from string
|
||
|
bool check_fname(std::string name) const
|
||
|
{
|
||
|
if (fnames_.empty())
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
return (detail::find_member(name, fnames_, ignore_case_, ignore_underscore_) >= 0);
|
||
|
}
|
||
|
|
||
|
std::string get_flag_value(std::string name, std::string input_value) const
|
||
|
{
|
||
|
static const std::string trueString{ "true" };
|
||
|
static const std::string falseString{ "false" };
|
||
|
static const std::string emptyString{ "{}" };
|
||
|
// check for disable flag override_
|
||
|
if (disable_flag_override_)
|
||
|
{
|
||
|
if (!((input_value.empty()) || (input_value == emptyString)))
|
||
|
{
|
||
|
auto default_ind = detail::find_member(name, fnames_, ignore_case_, ignore_underscore_);
|
||
|
if (default_ind >= 0)
|
||
|
{
|
||
|
// We can static cast this to size_t because it is more than 0 in this block
|
||
|
if (default_flag_values_[static_cast<size_t>(default_ind)].second != input_value)
|
||
|
{
|
||
|
throw(ArgumentMismatch::FlagOverride(name));
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if (input_value != trueString)
|
||
|
{
|
||
|
throw(ArgumentMismatch::FlagOverride(name));
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
auto ind = detail::find_member(name, fnames_, ignore_case_, ignore_underscore_);
|
||
|
if ((input_value.empty()) || (input_value == emptyString))
|
||
|
{
|
||
|
return (ind < 0) ? trueString : default_flag_values_[static_cast<size_t>(ind)].second;
|
||
|
}
|
||
|
if (ind < 0)
|
||
|
{
|
||
|
return input_value;
|
||
|
}
|
||
|
if (default_flag_values_[static_cast<size_t>(ind)].second == falseString)
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
auto val = detail::to_flag_value(input_value);
|
||
|
return (val == 1) ? falseString : (val == (-1) ? trueString : std::to_string(-val));
|
||
|
}
|
||
|
catch (const std::invalid_argument&)
|
||
|
{
|
||
|
return input_value;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return input_value;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Puts a result at the end
|
||
|
Option* add_result(std::string s)
|
||
|
{
|
||
|
_add_result(std::move(s));
|
||
|
callback_run_ = false;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Puts a result at the end and get a count of the number of arguments actually added
|
||
|
Option* add_result(std::string s, int& results_added)
|
||
|
{
|
||
|
results_added = _add_result(std::move(s));
|
||
|
callback_run_ = false;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Puts a result at the end
|
||
|
Option* add_result(std::vector<std::string> s)
|
||
|
{
|
||
|
for (auto& str : s)
|
||
|
{
|
||
|
_add_result(std::move(str));
|
||
|
}
|
||
|
callback_run_ = false;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Get a copy of the results
|
||
|
std::vector<std::string> results() const { return results_; }
|
||
|
|
||
|
/// get the results as a particular type
|
||
|
template<typename T,
|
||
|
enable_if_t<!is_vector<T>::value && !std::is_const<T>::value, detail::enabler> = detail::dummy>
|
||
|
void results(T& output) const
|
||
|
{
|
||
|
bool retval;
|
||
|
if (results_.empty())
|
||
|
{
|
||
|
retval = detail::lexical_cast(default_str_, output);
|
||
|
}
|
||
|
else if (results_.size() == 1)
|
||
|
{
|
||
|
retval = detail::lexical_cast(results_[0], output);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
switch (multi_option_policy_)
|
||
|
{
|
||
|
case MultiOptionPolicy::TakeFirst:
|
||
|
retval = detail::lexical_cast(results_.front(), output);
|
||
|
break;
|
||
|
case MultiOptionPolicy::TakeLast:
|
||
|
default:
|
||
|
retval = detail::lexical_cast(results_.back(), output);
|
||
|
break;
|
||
|
case MultiOptionPolicy::Throw:
|
||
|
throw ConversionError(get_name(), results_);
|
||
|
case MultiOptionPolicy::Join:
|
||
|
retval = detail::lexical_cast(detail::join(results_), output);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
if (!retval)
|
||
|
{
|
||
|
throw ConversionError(get_name(), results_);
|
||
|
}
|
||
|
}
|
||
|
/// get the results as a vector of a particular type
|
||
|
template<typename T>
|
||
|
void results(std::vector<T>& output) const
|
||
|
{
|
||
|
output.clear();
|
||
|
bool retval = true;
|
||
|
|
||
|
for (const auto& elem : results_)
|
||
|
{
|
||
|
output.emplace_back();
|
||
|
retval &= detail::lexical_cast(elem, output.back());
|
||
|
}
|
||
|
|
||
|
if (!retval)
|
||
|
{
|
||
|
throw ConversionError(get_name(), results_);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// return the results as a particular type
|
||
|
template<typename T>
|
||
|
T as() const
|
||
|
{
|
||
|
T output;
|
||
|
results(output);
|
||
|
return output;
|
||
|
}
|
||
|
|
||
|
/// See if the callback has been run already
|
||
|
bool get_callback_run() const { return callback_run_; }
|
||
|
|
||
|
///@}
|
||
|
/// @name Custom options
|
||
|
///@{
|
||
|
|
||
|
/// Set the type function to run when displayed on this option
|
||
|
Option* type_name_fn(std::function<std::string()> typefun)
|
||
|
{
|
||
|
type_name_ = typefun;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set a custom option typestring
|
||
|
Option* type_name(std::string typeval)
|
||
|
{
|
||
|
type_name_fn([typeval]() { return typeval; });
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set a custom option size
|
||
|
Option* type_size(int option_type_size)
|
||
|
{
|
||
|
type_size_ = option_type_size;
|
||
|
if (type_size_ == 0)
|
||
|
required_ = false;
|
||
|
if (option_type_size < 0)
|
||
|
expected_ = -1;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set a capture function for the default. Mostly used by App.
|
||
|
Option* default_function(const std::function<std::string()>& func)
|
||
|
{
|
||
|
default_function_ = func;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Capture the default value from the original value (if it can be captured)
|
||
|
Option* capture_default_str()
|
||
|
{
|
||
|
if (default_function_)
|
||
|
{
|
||
|
default_str_ = default_function_();
|
||
|
}
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set the default value string representation (does not change the contained value)
|
||
|
Option* default_str(std::string val)
|
||
|
{
|
||
|
default_str_ = val;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set the default value string representation and evaluate into the bound value
|
||
|
Option* default_val(std::string val)
|
||
|
{
|
||
|
default_str(val);
|
||
|
auto old_results = results_;
|
||
|
results_ = { val };
|
||
|
run_callback();
|
||
|
results_ = std::move(old_results);
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Get the full typename for this option
|
||
|
std::string get_type_name() const
|
||
|
{
|
||
|
std::string full_type_name = type_name_();
|
||
|
if (!validators_.empty())
|
||
|
{
|
||
|
for (auto& validator : validators_)
|
||
|
{
|
||
|
std::string vtype = validator.get_description();
|
||
|
if (!vtype.empty())
|
||
|
{
|
||
|
full_type_name += ":" + vtype;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return full_type_name;
|
||
|
}
|
||
|
|
||
|
private:
|
||
|
// run through the validators
|
||
|
std::string _validate(std::string& result)
|
||
|
{
|
||
|
std::string err_msg;
|
||
|
for (const auto& vali : validators_)
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
err_msg = vali(result);
|
||
|
}
|
||
|
catch (const ValidationError& err)
|
||
|
{
|
||
|
err_msg = err.what();
|
||
|
}
|
||
|
if (!err_msg.empty())
|
||
|
break;
|
||
|
}
|
||
|
return err_msg;
|
||
|
}
|
||
|
|
||
|
int _add_result(std::string&& result)
|
||
|
{
|
||
|
int result_count = 0;
|
||
|
if (delimiter_ == '\0')
|
||
|
{
|
||
|
results_.push_back(std::move(result));
|
||
|
++result_count;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if ((result.find_first_of(delimiter_) != std::string::npos))
|
||
|
{
|
||
|
for (const auto& var : CLI::detail::split(result, delimiter_))
|
||
|
{
|
||
|
if (!var.empty())
|
||
|
{
|
||
|
results_.push_back(var);
|
||
|
++result_count;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
results_.push_back(std::move(result));
|
||
|
++result_count;
|
||
|
}
|
||
|
}
|
||
|
return result_count;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
} // namespace CLI
|
||
|
|
||
|
// From CLI/App.hpp:
|
||
|
|
||
|
namespace CLI
|
||
|
{
|
||
|
#ifndef CLI11_PARSE
|
||
|
#define CLI11_PARSE(app, argc, argv) \
|
||
|
try \
|
||
|
{ \
|
||
|
(app).parse((argc), (argv)); \
|
||
|
} \
|
||
|
catch (const CLI::ParseError& e) \
|
||
|
{ \
|
||
|
return (app).exit(e); \
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
namespace detail
|
||
|
{
|
||
|
enum class Classifier
|
||
|
{
|
||
|
NONE,
|
||
|
POSITIONAL_MARK,
|
||
|
SHORT,
|
||
|
LONG,
|
||
|
WINDOWS,
|
||
|
SUBCOMMAND,
|
||
|
SUBCOMMAND_TERMINATOR
|
||
|
};
|
||
|
struct AppFriend;
|
||
|
} // namespace detail
|
||
|
|
||
|
namespace FailureMessage
|
||
|
{
|
||
|
std::string simple(const App* app, const Error& e);
|
||
|
std::string help(const App* app, const Error& e);
|
||
|
} // namespace FailureMessage
|
||
|
|
||
|
class App;
|
||
|
|
||
|
using App_p = std::shared_ptr<App>;
|
||
|
|
||
|
class Option_group;
|
||
|
/// Creates a command line program, with very few defaults.
|
||
|
/** To use, create a new `Program()` instance with `argc`, `argv`, and a help description. The templated
|
||
|
* add_option methods make it easy to prepare options. Remember to call `.start` before starting your
|
||
|
* program, so that the options can be evaluated and the help option doesn't accidentally run your program. */
|
||
|
class App
|
||
|
{
|
||
|
friend Option;
|
||
|
friend detail::AppFriend;
|
||
|
|
||
|
protected:
|
||
|
// This library follows the Google style guide for member names ending in underscores
|
||
|
|
||
|
/// @name Basics
|
||
|
///@{
|
||
|
|
||
|
/// Subcommand name or program name (from parser if name is empty)
|
||
|
std::string name_;
|
||
|
|
||
|
/// Description of the current program/subcommand
|
||
|
std::string description_;
|
||
|
|
||
|
/// If true, allow extra arguments (ie, don't throw an error). INHERITABLE
|
||
|
bool allow_extras_{ false };
|
||
|
|
||
|
/// If true, allow extra arguments in the ini file (ie, don't throw an error). INHERITABLE
|
||
|
bool allow_config_extras_{ false };
|
||
|
|
||
|
/// If true, return immediately on an unrecognized option (implies allow_extras) INHERITABLE
|
||
|
bool prefix_command_{ false };
|
||
|
|
||
|
/// If set to true the name was automatically generated from the command line vs a user set name
|
||
|
bool has_automatic_name_{ false };
|
||
|
|
||
|
/// If set to true the subcommand is required to be processed and used, ignored for main app
|
||
|
bool required_{ false };
|
||
|
|
||
|
/// If set to true the subcommand is disabled and cannot be used, ignored for main app
|
||
|
bool disabled_{ false };
|
||
|
|
||
|
/// Flag indicating that the pre_parse_callback has been triggered
|
||
|
bool pre_parse_called_{ false };
|
||
|
|
||
|
/// Flag indicating that the callback for the subcommand should be executed immediately on parse completion which is
|
||
|
/// before help or ini files are processed. INHERITABLE
|
||
|
bool immediate_callback_{ false };
|
||
|
|
||
|
/// This is a function that runs prior to the start of parsing
|
||
|
std::function<void(size_t)> pre_parse_callback_;
|
||
|
|
||
|
/// This is a function that runs when complete. Great for subcommands. Can throw.
|
||
|
std::function<void()> callback_;
|
||
|
|
||
|
///@}
|
||
|
/// @name Options
|
||
|
///@{
|
||
|
|
||
|
/// The default values for options, customizable and changeable INHERITABLE
|
||
|
OptionDefaults option_defaults_;
|
||
|
|
||
|
/// The list of options, stored locally
|
||
|
std::vector<Option_p> options_;
|
||
|
|
||
|
///@}
|
||
|
/// @name Help
|
||
|
///@{
|
||
|
|
||
|
/// Footer to put after all options in the help output INHERITABLE
|
||
|
std::string footer_;
|
||
|
|
||
|
/// A pointer to the help flag if there is one INHERITABLE
|
||
|
Option* help_ptr_{ nullptr };
|
||
|
|
||
|
/// A pointer to the help all flag if there is one INHERITABLE
|
||
|
Option* help_all_ptr_{ nullptr };
|
||
|
|
||
|
/// This is the formatter for help printing. Default provided. INHERITABLE (same pointer)
|
||
|
std::shared_ptr<FormatterBase> formatter_{ new Formatter() };
|
||
|
|
||
|
/// The error message printing function INHERITABLE
|
||
|
std::function<std::string(const App*, const Error& e)> failure_message_ = FailureMessage::simple;
|
||
|
|
||
|
///@}
|
||
|
/// @name Parsing
|
||
|
///@{
|
||
|
|
||
|
using missing_t = std::vector<std::pair<detail::Classifier, std::string>>;
|
||
|
|
||
|
/// Pair of classifier, string for missing options. (extra detail is removed on returning from parse)
|
||
|
///
|
||
|
/// This is faster and cleaner than storing just a list of strings and reparsing. This may contain the -- separator.
|
||
|
missing_t missing_;
|
||
|
|
||
|
/// This is a list of pointers to options with the original parse order
|
||
|
std::vector<Option*> parse_order_;
|
||
|
|
||
|
/// This is a list of the subcommands collected, in order
|
||
|
std::vector<App*> parsed_subcommands_;
|
||
|
|
||
|
/// this is a list of subcommands that are exclusionary to this one
|
||
|
std::set<App*> exclude_subcommands_;
|
||
|
|
||
|
/// This is a list of options which are exclusionary to this App, if the options were used this subcommand should
|
||
|
/// not be
|
||
|
std::set<Option*> exclude_options_;
|
||
|
|
||
|
///@}
|
||
|
/// @name Subcommands
|
||
|
///@{
|
||
|
|
||
|
/// Storage for subcommand list
|
||
|
std::vector<App_p> subcommands_;
|
||
|
|
||
|
/// If true, the program name is not case sensitive INHERITABLE
|
||
|
bool ignore_case_{ false };
|
||
|
|
||
|
/// If true, the program should ignore underscores INHERITABLE
|
||
|
bool ignore_underscore_{ false };
|
||
|
|
||
|
/// Allow subcommand fallthrough, so that parent commands can collect commands after subcommand. INHERITABLE
|
||
|
bool fallthrough_{ false };
|
||
|
|
||
|
/// Allow '/' for options for Windows like options. Defaults to true on Windows, false otherwise. INHERITABLE
|
||
|
bool allow_windows_style_options_{
|
||
|
#ifdef _WIN32
|
||
|
true
|
||
|
#else
|
||
|
false
|
||
|
#endif
|
||
|
};
|
||
|
/// specify that positional arguments come at the end of the argument sequence not inheritable
|
||
|
bool positionals_at_end_{ false };
|
||
|
|
||
|
/// If set to true the subcommand will start each parse disabled
|
||
|
bool disabled_by_default_{ false };
|
||
|
/// If set to true the subcommand will be reenabled at the start of each parse
|
||
|
bool enabled_by_default_{ false };
|
||
|
/// If set to true positional options are validated before assigning INHERITABLE
|
||
|
bool validate_positionals_{ false };
|
||
|
/// A pointer to the parent if this is a subcommand
|
||
|
App* parent_{ nullptr };
|
||
|
|
||
|
/// Counts the number of times this command/subcommand was parsed
|
||
|
size_t parsed_ = 0;
|
||
|
|
||
|
/// Minimum required subcommands (not inheritable!)
|
||
|
size_t require_subcommand_min_ = 0;
|
||
|
|
||
|
/// Max number of subcommands allowed (parsing stops after this number). 0 is unlimited INHERITABLE
|
||
|
size_t require_subcommand_max_ = 0;
|
||
|
|
||
|
/// Minimum required options (not inheritable!)
|
||
|
size_t require_option_min_ = 0;
|
||
|
|
||
|
/// Max number of options allowed. 0 is unlimited (not inheritable)
|
||
|
size_t require_option_max_ = 0;
|
||
|
|
||
|
/// The group membership INHERITABLE
|
||
|
std::string group_{ "Subcommands" };
|
||
|
|
||
|
///@}
|
||
|
/// @name Config
|
||
|
///@{
|
||
|
|
||
|
/// The name of the connected config file
|
||
|
std::string config_name_;
|
||
|
|
||
|
/// True if ini is required (throws if not present), if false simply keep going.
|
||
|
bool config_required_{ false };
|
||
|
|
||
|
/// Pointer to the config option
|
||
|
Option* config_ptr_{ nullptr };
|
||
|
|
||
|
/// This is the formatter for help printing. Default provided. INHERITABLE (same pointer)
|
||
|
std::shared_ptr<Config> config_formatter_{ new ConfigINI() };
|
||
|
|
||
|
///@}
|
||
|
|
||
|
/// Special private constructor for subcommand
|
||
|
App(std::string app_description, std::string app_name, App* parent) :
|
||
|
name_(std::move(app_name)),
|
||
|
description_(std::move(app_description)),
|
||
|
parent_(parent)
|
||
|
{
|
||
|
// Inherit if not from a nullptr
|
||
|
if (parent_ != nullptr)
|
||
|
{
|
||
|
if (parent_->help_ptr_ != nullptr)
|
||
|
set_help_flag(parent_->help_ptr_->get_name(false, true), parent_->help_ptr_->get_description());
|
||
|
if (parent_->help_all_ptr_ != nullptr)
|
||
|
set_help_all_flag(parent_->help_all_ptr_->get_name(false, true),
|
||
|
parent_->help_all_ptr_->get_description());
|
||
|
|
||
|
/// OptionDefaults
|
||
|
option_defaults_ = parent_->option_defaults_;
|
||
|
|
||
|
// INHERITABLE
|
||
|
failure_message_ = parent_->failure_message_;
|
||
|
allow_extras_ = parent_->allow_extras_;
|
||
|
allow_config_extras_ = parent_->allow_config_extras_;
|
||
|
prefix_command_ = parent_->prefix_command_;
|
||
|
immediate_callback_ = parent_->immediate_callback_;
|
||
|
ignore_case_ = parent_->ignore_case_;
|
||
|
ignore_underscore_ = parent_->ignore_underscore_;
|
||
|
fallthrough_ = parent_->fallthrough_;
|
||
|
validate_positionals_ = parent_->validate_positionals_;
|
||
|
allow_windows_style_options_ = parent_->allow_windows_style_options_;
|
||
|
group_ = parent_->group_;
|
||
|
footer_ = parent_->footer_;
|
||
|
formatter_ = parent_->formatter_;
|
||
|
config_formatter_ = parent_->config_formatter_;
|
||
|
require_subcommand_max_ = parent_->require_subcommand_max_;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
public:
|
||
|
/// @name Basic
|
||
|
///@{
|
||
|
|
||
|
/// Create a new program. Pass in the same arguments as main(), along with a help string.
|
||
|
explicit App(std::string app_description = "", std::string app_name = "") :
|
||
|
App(app_description, app_name, nullptr)
|
||
|
{
|
||
|
set_help_flag("-h,--help", "Print this help message and exit");
|
||
|
}
|
||
|
|
||
|
/// virtual destructor
|
||
|
virtual ~App() = default;
|
||
|
|
||
|
/// Set a callback for the end of parsing.
|
||
|
///
|
||
|
/// Due to a bug in c++11,
|
||
|
/// it is not possible to overload on std::function (fixed in c++14
|
||
|
/// and backported to c++11 on newer compilers). Use capture by reference
|
||
|
/// to get a pointer to App if needed.
|
||
|
App* callback(std::function<void()> app_callback)
|
||
|
{
|
||
|
callback_ = std::move(app_callback);
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set a callback to execute prior to parsing.
|
||
|
///
|
||
|
App* preparse_callback(std::function<void(size_t)> pp_callback)
|
||
|
{
|
||
|
pre_parse_callback_ = std::move(pp_callback);
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set a name for the app (empty will use parser to set the name)
|
||
|
App* name(std::string app_name = "")
|
||
|
{
|
||
|
name_ = app_name;
|
||
|
has_automatic_name_ = false;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Remove the error when extras are left over on the command line.
|
||
|
App* allow_extras(bool allow = true)
|
||
|
{
|
||
|
allow_extras_ = allow;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Remove the error when extras are left over on the command line.
|
||
|
App* required(bool require = true)
|
||
|
{
|
||
|
required_ = require;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Disable the subcommand or option group
|
||
|
App* disabled(bool disable = true)
|
||
|
{
|
||
|
disabled_ = disable;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set the subcommand to be disabled by default, so on clear(), at the start of each parse it is disabled
|
||
|
App* disabled_by_default(bool disable = true)
|
||
|
{
|
||
|
disabled_by_default_ = disable;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set the subcommand to be enabled by default, so on clear(), at the start of each parse it is enabled (not
|
||
|
/// disabled)
|
||
|
App* enabled_by_default(bool enable = true)
|
||
|
{
|
||
|
enabled_by_default_ = enable;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set the subcommand callback to be executed immediately on subcommand completion
|
||
|
App* immediate_callback(bool immediate = true)
|
||
|
{
|
||
|
immediate_callback_ = immediate;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set the subcommand to validate positional arguments before assigning
|
||
|
App* validate_positionals(bool validate = true)
|
||
|
{
|
||
|
validate_positionals_ = validate;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Remove the error when extras are left over on the command line.
|
||
|
/// Will also call App::allow_extras().
|
||
|
App* allow_config_extras(bool allow = true)
|
||
|
{
|
||
|
allow_extras(allow);
|
||
|
allow_config_extras_ = allow;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Do not parse anything after the first unrecognized option and return
|
||
|
App* prefix_command(bool allow = true)
|
||
|
{
|
||
|
prefix_command_ = allow;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Ignore case. Subcommands inherit value.
|
||
|
App* ignore_case(bool value = true)
|
||
|
{
|
||
|
ignore_case_ = value;
|
||
|
if (parent_ != nullptr && !name_.empty())
|
||
|
{
|
||
|
for (const auto& subc : parent_->subcommands_)
|
||
|
{
|
||
|
if (subc.get() != this && (this->check_name(subc->name_) || subc->check_name(this->name_)))
|
||
|
throw OptionAlreadyAdded(subc->name_);
|
||
|
}
|
||
|
}
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Allow windows style options, such as `/opt`. First matching short or long name used. Subcommands inherit value.
|
||
|
App* allow_windows_style_options(bool value = true)
|
||
|
{
|
||
|
allow_windows_style_options_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Specify that the positional arguments are only at the end of the sequence
|
||
|
App* positionals_at_end(bool value = true)
|
||
|
{
|
||
|
positionals_at_end_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Ignore underscore. Subcommands inherit value.
|
||
|
App* ignore_underscore(bool value = true)
|
||
|
{
|
||
|
ignore_underscore_ = value;
|
||
|
if (parent_ != nullptr && !name_.empty())
|
||
|
{
|
||
|
for (const auto& subc : parent_->subcommands_)
|
||
|
{
|
||
|
if (subc.get() != this && (this->check_name(subc->name_) || subc->check_name(this->name_)))
|
||
|
throw OptionAlreadyAdded(subc->name_);
|
||
|
}
|
||
|
}
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set the help formatter
|
||
|
App* formatter(std::shared_ptr<FormatterBase> fmt)
|
||
|
{
|
||
|
formatter_ = fmt;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set the help formatter
|
||
|
App* formatter_fn(std::function<std::string(const App*, std::string, AppFormatMode)> fmt)
|
||
|
{
|
||
|
formatter_ = std::make_shared<FormatterLambda>(fmt);
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Set the config formatter
|
||
|
App* config_formatter(std::shared_ptr<Config> fmt)
|
||
|
{
|
||
|
config_formatter_ = fmt;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Check to see if this subcommand was parsed, true only if received on command line.
|
||
|
bool parsed() const { return parsed_ > 0; }
|
||
|
|
||
|
/// Get the OptionDefault object, to set option defaults
|
||
|
OptionDefaults* option_defaults() { return &option_defaults_; }
|
||
|
|
||
|
///@}
|
||
|
/// @name Adding options
|
||
|
///@{
|
||
|
|
||
|
/// Add an option, will automatically understand the type for common types.
|
||
|
///
|
||
|
/// To use, create a variable with the expected type, and pass it in after the name.
|
||
|
/// After start is called, you can use count to see if the value was passed, and
|
||
|
/// the value will be initialized properly. Numbers, vectors, and strings are supported.
|
||
|
///
|
||
|
/// ->required(), ->default, and the validators are options,
|
||
|
/// The positional options take an optional number of arguments.
|
||
|
///
|
||
|
/// For example,
|
||
|
///
|
||
|
/// std::string filename;
|
||
|
/// program.add_option("filename", filename, "description of filename");
|
||
|
///
|
||
|
Option* add_option(std::string option_name,
|
||
|
callback_t option_callback,
|
||
|
std::string option_description = "",
|
||
|
bool defaulted = false,
|
||
|
std::function<std::string()> func = {})
|
||
|
{
|
||
|
Option myopt{ option_name, option_description, option_callback, this };
|
||
|
|
||
|
if (std::find_if(std::begin(options_), std::end(options_), [&myopt](const Option_p& v) {
|
||
|
return *v == myopt;
|
||
|
}) == std::end(options_))
|
||
|
{
|
||
|
options_.emplace_back();
|
||
|
Option_p& option = options_.back();
|
||
|
option.reset(new Option(option_name, option_description, option_callback, this));
|
||
|
|
||
|
// Set the default string capture function
|
||
|
option->default_function(func);
|
||
|
|
||
|
// For compatibility with CLI11 1.7 and before, capture the default string here
|
||
|
if (defaulted)
|
||
|
option->capture_default_str();
|
||
|
|
||
|
// Transfer defaults to the new option
|
||
|
option_defaults_.copy_to(option.get());
|
||
|
|
||
|
// Don't bother to capture if we already did
|
||
|
if (!defaulted && option->get_always_capture_default())
|
||
|
option->capture_default_str();
|
||
|
|
||
|
return option.get();
|
||
|
}
|
||
|
else
|
||
|
throw OptionAlreadyAdded(myopt.get_name());
|
||
|
}
|
||
|
|
||
|
/// Add option for non-vectors (duplicate copy needed without defaulted to avoid `iostream << value`)
|
||
|
template<typename T, enable_if_t<!is_vector<T>::value & !std::is_const<T>::value, detail::enabler> = detail::dummy>
|
||
|
Option* add_option(std::string option_name,
|
||
|
T& variable, ///< The variable to set
|
||
|
std::string option_description = "",
|
||
|
bool defaulted = false)
|
||
|
{
|
||
|
auto fun = [&variable](CLI::results_t res) { return detail::lexical_cast(res[0], variable); };
|
||
|
|
||
|
Option* opt = add_option(option_name, fun, option_description, defaulted, [&variable]() {
|
||
|
return std::string(CLI::detail::to_string(variable));
|
||
|
});
|
||
|
opt->type_name(detail::type_name<T>());
|
||
|
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add option for a callback of a specific type
|
||
|
template<typename T, enable_if_t<!is_vector<T>::value, detail::enabler> = detail::dummy>
|
||
|
Option* add_option_function(std::string option_name,
|
||
|
const std::function<void(const T&)>& func, ///< the callback to execute
|
||
|
std::string option_description = "")
|
||
|
{
|
||
|
auto fun = [func](CLI::results_t res) {
|
||
|
T variable;
|
||
|
bool result = detail::lexical_cast(res[0], variable);
|
||
|
if (result)
|
||
|
{
|
||
|
func(variable);
|
||
|
}
|
||
|
return result;
|
||
|
};
|
||
|
|
||
|
Option* opt = add_option(option_name, std::move(fun), option_description, false);
|
||
|
opt->type_name(detail::type_name<T>());
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add option with no description or variable assignment
|
||
|
Option* add_option(std::string option_name)
|
||
|
{
|
||
|
return add_option(option_name, CLI::callback_t(), std::string{}, false);
|
||
|
}
|
||
|
|
||
|
/// Add option with description but with no variable assignment or callback
|
||
|
template<typename T,
|
||
|
enable_if_t<std::is_const<T>::value && std::is_constructible<std::string, T>::value, detail::enabler> =
|
||
|
detail::dummy>
|
||
|
Option* add_option(std::string option_name, T& option_description)
|
||
|
{
|
||
|
return add_option(option_name, CLI::callback_t(), option_description, false);
|
||
|
}
|
||
|
|
||
|
/// Add option for vectors
|
||
|
template<typename T>
|
||
|
Option* add_option(std::string option_name,
|
||
|
std::vector<T>& variable, ///< The variable vector to set
|
||
|
std::string option_description = "",
|
||
|
bool defaulted = false)
|
||
|
{
|
||
|
auto fun = [&variable](CLI::results_t res) {
|
||
|
bool retval = true;
|
||
|
variable.clear();
|
||
|
variable.reserve(res.size());
|
||
|
for (const auto& elem : res)
|
||
|
{
|
||
|
variable.emplace_back();
|
||
|
retval &= detail::lexical_cast(elem, variable.back());
|
||
|
}
|
||
|
return (!variable.empty()) && retval;
|
||
|
};
|
||
|
|
||
|
auto default_function = [&variable]() {
|
||
|
std::vector<std::string> defaults;
|
||
|
defaults.resize(variable.size());
|
||
|
std::transform(variable.begin(), variable.end(), defaults.begin(), [](T& val) {
|
||
|
return std::string(CLI::detail::to_string(val));
|
||
|
});
|
||
|
return std::string("[" + detail::join(defaults) + "]");
|
||
|
};
|
||
|
|
||
|
Option* opt = add_option(option_name, fun, option_description, defaulted, default_function);
|
||
|
opt->type_name(detail::type_name<T>())->type_size(-1);
|
||
|
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add option for a vector callback of a specific type
|
||
|
template<typename T, enable_if_t<is_vector<T>::value, detail::enabler> = detail::dummy>
|
||
|
Option* add_option_function(std::string option_name,
|
||
|
const std::function<void(const T&)>& func, ///< the callback to execute
|
||
|
std::string option_description = "")
|
||
|
{
|
||
|
CLI::callback_t fun = [func](CLI::results_t res) {
|
||
|
T values;
|
||
|
bool retval = true;
|
||
|
values.reserve(res.size());
|
||
|
for (const auto& elem : res)
|
||
|
{
|
||
|
values.emplace_back();
|
||
|
retval &= detail::lexical_cast(elem, values.back());
|
||
|
}
|
||
|
if (retval)
|
||
|
{
|
||
|
func(values);
|
||
|
}
|
||
|
return retval;
|
||
|
};
|
||
|
|
||
|
Option* opt = add_option(option_name, std::move(fun), std::move(option_description), false);
|
||
|
opt->type_name(detail::type_name<T>())->type_size(-1);
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Set a help flag, replace the existing one if present
|
||
|
Option* set_help_flag(std::string flag_name = "", const std::string& help_description = "")
|
||
|
{
|
||
|
// take flag_description by const reference otherwise add_flag tries to assign to help_description
|
||
|
if (help_ptr_ != nullptr)
|
||
|
{
|
||
|
remove_option(help_ptr_);
|
||
|
help_ptr_ = nullptr;
|
||
|
}
|
||
|
|
||
|
// Empty name will simply remove the help flag
|
||
|
if (!flag_name.empty())
|
||
|
{
|
||
|
help_ptr_ = add_flag(flag_name, help_description);
|
||
|
help_ptr_->configurable(false);
|
||
|
}
|
||
|
|
||
|
return help_ptr_;
|
||
|
}
|
||
|
|
||
|
/// Set a help all flag, replaced the existing one if present
|
||
|
Option* set_help_all_flag(std::string help_name = "", const std::string& help_description = "")
|
||
|
{
|
||
|
// take flag_description by const reference otherwise add_flag tries to assign to flag_description
|
||
|
if (help_all_ptr_ != nullptr)
|
||
|
{
|
||
|
remove_option(help_all_ptr_);
|
||
|
help_all_ptr_ = nullptr;
|
||
|
}
|
||
|
|
||
|
// Empty name will simply remove the help all flag
|
||
|
if (!help_name.empty())
|
||
|
{
|
||
|
help_all_ptr_ = add_flag(help_name, help_description);
|
||
|
help_all_ptr_->configurable(false);
|
||
|
}
|
||
|
|
||
|
return help_all_ptr_;
|
||
|
}
|
||
|
|
||
|
private:
|
||
|
/// Internal function for adding a flag
|
||
|
Option* _add_flag_internal(std::string flag_name, CLI::callback_t fun, std::string flag_description)
|
||
|
{
|
||
|
Option* opt;
|
||
|
if (detail::has_default_flag_values(flag_name))
|
||
|
{
|
||
|
// check for default values and if it has them
|
||
|
auto flag_defaults = detail::get_default_flag_values(flag_name);
|
||
|
detail::remove_default_flag_values(flag_name);
|
||
|
opt = add_option(std::move(flag_name), std::move(fun), std::move(flag_description), false);
|
||
|
for (const auto& fname : flag_defaults)
|
||
|
opt->fnames_.push_back(fname.first);
|
||
|
opt->default_flag_values_ = std::move(flag_defaults);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
opt = add_option(std::move(flag_name), std::move(fun), std::move(flag_description), false);
|
||
|
}
|
||
|
// flags cannot have positional values
|
||
|
if (opt->get_positional())
|
||
|
{
|
||
|
auto pos_name = opt->get_name(true);
|
||
|
remove_option(opt);
|
||
|
throw IncorrectConstruction::PositionalFlag(pos_name);
|
||
|
}
|
||
|
|
||
|
opt->type_size(0);
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
public:
|
||
|
/// Add a flag with no description or variable assignment
|
||
|
Option* add_flag(std::string flag_name) { return _add_flag_internal(flag_name, CLI::callback_t(), std::string{}); }
|
||
|
|
||
|
/// Add flag with description but with no variable assignment or callback
|
||
|
/// takes a constant string, if a variable string is passed that variable will be assigned the results from the
|
||
|
/// flag
|
||
|
template<typename T,
|
||
|
enable_if_t<std::is_const<T>::value && std::is_constructible<std::string, T>::value, detail::enabler> =
|
||
|
detail::dummy>
|
||
|
Option* add_flag(std::string flag_name, T& flag_description)
|
||
|
{
|
||
|
return _add_flag_internal(flag_name, CLI::callback_t(), flag_description);
|
||
|
}
|
||
|
|
||
|
/// Add option for flag with integer result - defaults to allowing multiple passings, but can be forced to one if
|
||
|
/// `multi_option_policy(CLI::MultiOptionPolicy::Throw)` is used.
|
||
|
template<typename T,
|
||
|
enable_if_t<std::is_integral<T>::value && !is_bool<T>::value, detail::enabler> = detail::dummy>
|
||
|
Option* add_flag(std::string flag_name,
|
||
|
T& flag_count, ///< A variable holding the count
|
||
|
std::string flag_description = "")
|
||
|
{
|
||
|
flag_count = 0;
|
||
|
CLI::callback_t fun = [&flag_count](CLI::results_t res) {
|
||
|
try
|
||
|
{
|
||
|
detail::sum_flag_vector(res, flag_count);
|
||
|
}
|
||
|
catch (const std::invalid_argument&)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
return true;
|
||
|
};
|
||
|
return _add_flag_internal(flag_name, std::move(fun), std::move(flag_description));
|
||
|
}
|
||
|
|
||
|
/// Other type version accepts all other types that are not vectors such as bool, enum, string or other classes that
|
||
|
/// can be converted from a string
|
||
|
template<typename T,
|
||
|
enable_if_t<!is_vector<T>::value && !std::is_const<T>::value &&
|
||
|
(!std::is_integral<T>::value || is_bool<T>::value) &&
|
||
|
!std::is_constructible<std::function<void(int)>, T>::value,
|
||
|
detail::enabler> = detail::dummy>
|
||
|
Option* add_flag(std::string flag_name,
|
||
|
T& flag_result, ///< A variable holding true if passed
|
||
|
std::string flag_description = "")
|
||
|
{
|
||
|
CLI::callback_t fun = [&flag_result](CLI::results_t res) {
|
||
|
if (res.size() != 1)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
return CLI::detail::lexical_cast(res[0], flag_result);
|
||
|
};
|
||
|
Option* opt = _add_flag_internal(flag_name, std::move(fun), std::move(flag_description));
|
||
|
opt->multi_option_policy(CLI::MultiOptionPolicy::TakeLast);
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Vector version to capture multiple flags.
|
||
|
template<typename T,
|
||
|
enable_if_t<!std::is_assignable<std::function<void(int64_t)>, T>::value, detail::enabler> = detail::dummy>
|
||
|
Option* add_flag(std::string flag_name,
|
||
|
std::vector<T>& flag_results, ///< A vector of values with the flag results
|
||
|
std::string flag_description = "")
|
||
|
{
|
||
|
CLI::callback_t fun = [&flag_results](CLI::results_t res) {
|
||
|
bool retval = true;
|
||
|
for (const auto& elem : res)
|
||
|
{
|
||
|
flag_results.emplace_back();
|
||
|
retval &= detail::lexical_cast(elem, flag_results.back());
|
||
|
}
|
||
|
return retval;
|
||
|
};
|
||
|
return _add_flag_internal(flag_name, std::move(fun), std::move(flag_description));
|
||
|
}
|
||
|
|
||
|
/// Add option for callback that is triggered with a true flag and takes no arguments
|
||
|
Option* add_flag_callback(std::string flag_name,
|
||
|
std::function<void(void)> function, ///< A function to call, void(void)
|
||
|
std::string flag_description = "")
|
||
|
{
|
||
|
CLI::callback_t fun = [function](CLI::results_t res) {
|
||
|
if (res.size() != 1)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
bool trigger;
|
||
|
auto result = CLI::detail::lexical_cast(res[0], trigger);
|
||
|
if (trigger)
|
||
|
function();
|
||
|
return result;
|
||
|
};
|
||
|
Option* opt = _add_flag_internal(flag_name, std::move(fun), std::move(flag_description));
|
||
|
opt->multi_option_policy(CLI::MultiOptionPolicy::TakeLast);
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add option for callback with an integer value
|
||
|
Option* add_flag_function(std::string flag_name,
|
||
|
std::function<void(int64_t)> function, ///< A function to call, void(int)
|
||
|
std::string flag_description = "")
|
||
|
{
|
||
|
CLI::callback_t fun = [function](CLI::results_t res) {
|
||
|
int64_t flag_count = 0;
|
||
|
detail::sum_flag_vector(res, flag_count);
|
||
|
function(flag_count);
|
||
|
return true;
|
||
|
};
|
||
|
return _add_flag_internal(flag_name, std::move(fun), std::move(flag_description));
|
||
|
}
|
||
|
|
||
|
#ifdef CLI11_CPP14
|
||
|
/// Add option for callback (C++14 or better only)
|
||
|
Option* add_flag(std::string flag_name,
|
||
|
std::function<void(int64_t)> function, ///< A function to call, void(int64_t)
|
||
|
std::string flag_description = "")
|
||
|
{
|
||
|
return add_flag_function(std::move(flag_name), std::move(function), std::move(flag_description));
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
/// Add set of options (No default, temp reference, such as an inline set) DEPRECATED
|
||
|
template<typename T>
|
||
|
Option* add_set(std::string option_name,
|
||
|
T& member, ///< The selected member of the set
|
||
|
std::set<T> options, ///< The set of possibilities
|
||
|
std::string option_description = "")
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description));
|
||
|
opt->check(IsMember{ options });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options (No default, set can be changed afterwards - do not destroy the set) DEPRECATED
|
||
|
template<typename T>
|
||
|
Option* add_mutable_set(std::string option_name,
|
||
|
T& member, ///< The selected member of the set
|
||
|
const std::set<T>& options, ///< The set of possibilities
|
||
|
std::string option_description = "")
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description));
|
||
|
opt->check(IsMember{ &options });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options (with default, static set, such as an inline set) DEPRECATED
|
||
|
template<typename T>
|
||
|
Option* add_set(std::string option_name,
|
||
|
T& member, ///< The selected member of the set
|
||
|
std::set<T> options, ///< The set of possibilities
|
||
|
std::string option_description,
|
||
|
bool defaulted)
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description), defaulted);
|
||
|
opt->check(IsMember{ options });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options (with default, set can be changed afterwards - do not destroy the set) DEPRECATED
|
||
|
template<typename T>
|
||
|
Option* add_mutable_set(std::string option_name,
|
||
|
T& member, ///< The selected member of the set
|
||
|
const std::set<T>& options, ///< The set of possibilities
|
||
|
std::string option_description,
|
||
|
bool defaulted)
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description), defaulted);
|
||
|
opt->check(IsMember{ &options });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore case (no default, static set) DEPRECATED
|
||
|
CLI11_DEPRECATED("Use ->transform(CLI::IsMember(..., CLI::ignore_case)) instead")
|
||
|
Option* add_set_ignore_case(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
std::set<std::string> options, ///< The set of possibilities
|
||
|
std::string option_description = "")
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description));
|
||
|
opt->transform(IsMember{ options, CLI::ignore_case });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore case (no default, set can be changed afterwards - do not destroy the
|
||
|
/// set) DEPRECATED
|
||
|
CLI11_DEPRECATED("Use ->transform(CLI::IsMember(..., CLI::ignore_case)) with a (shared) pointer instead")
|
||
|
Option* add_mutable_set_ignore_case(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
const std::set<std::string>& options, ///< The set of possibilities
|
||
|
std::string option_description = "")
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description));
|
||
|
opt->transform(IsMember{ &options, CLI::ignore_case });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore case (default, static set) DEPRECATED
|
||
|
CLI11_DEPRECATED("Use ->transform(CLI::IsMember(..., CLI::ignore_case)) instead")
|
||
|
Option* add_set_ignore_case(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
std::set<std::string> options, ///< The set of possibilities
|
||
|
std::string option_description,
|
||
|
bool defaulted)
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description), defaulted);
|
||
|
opt->transform(IsMember{ options, CLI::ignore_case });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore case (default, set can be changed afterwards - do not destroy the set)
|
||
|
/// DEPRECATED
|
||
|
CLI11_DEPRECATED("Use ->transform(CLI::IsMember(...)) with a (shared) pointer instead")
|
||
|
Option* add_mutable_set_ignore_case(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
const std::set<std::string>& options, ///< The set of possibilities
|
||
|
std::string option_description,
|
||
|
bool defaulted)
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description), defaulted);
|
||
|
opt->transform(IsMember{ &options, CLI::ignore_case });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore underscore (no default, static set) DEPRECATED
|
||
|
CLI11_DEPRECATED("Use ->transform(CLI::IsMember(..., CLI::ignore_underscore)) instead")
|
||
|
Option* add_set_ignore_underscore(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
std::set<std::string> options, ///< The set of possibilities
|
||
|
std::string option_description = "")
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description));
|
||
|
opt->transform(IsMember{ options, CLI::ignore_underscore });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore underscore (no default, set can be changed afterwards - do not destroy
|
||
|
/// the set) DEPRECATED
|
||
|
CLI11_DEPRECATED("Use ->transform(CLI::IsMember(..., CLI::ignore_underscore)) with a (shared) pointer instead")
|
||
|
Option* add_mutable_set_ignore_underscore(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
const std::set<std::string>& options, ///< The set of possibilities
|
||
|
std::string option_description = "")
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description));
|
||
|
opt->transform(IsMember{ options, CLI::ignore_underscore });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore underscore (default, static set) DEPRECATED
|
||
|
CLI11_DEPRECATED("Use ->transform(CLI::IsMember(..., CLI::ignore_underscore)) instead")
|
||
|
Option* add_set_ignore_underscore(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
std::set<std::string> options, ///< The set of possibilities
|
||
|
std::string option_description,
|
||
|
bool defaulted)
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description), defaulted);
|
||
|
opt->transform(IsMember{ options, CLI::ignore_underscore });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore underscore (default, set can be changed afterwards - do not destroy the
|
||
|
/// set) DEPRECATED
|
||
|
CLI11_DEPRECATED("Use ->transform(CLI::IsMember(..., CLI::ignore_underscore)) with a (shared) pointer instead")
|
||
|
Option* add_mutable_set_ignore_underscore(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
const std::set<std::string>& options, ///< The set of possibilities
|
||
|
std::string option_description,
|
||
|
bool defaulted)
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description), defaulted);
|
||
|
opt->transform(IsMember{ &options, CLI::ignore_underscore });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore underscore and case (no default, static set) DEPRECATED
|
||
|
CLI11_DEPRECATED("Use ->transform(CLI::IsMember(..., CLI::ignore_case, CLI::ignore_underscore)) instead")
|
||
|
Option* add_set_ignore_case_underscore(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
std::set<std::string> options, ///< The set of possibilities
|
||
|
std::string option_description = "")
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description));
|
||
|
opt->transform(IsMember{ options, CLI::ignore_underscore, CLI::ignore_case });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore underscore and case (no default, set can be changed afterwards - do not
|
||
|
/// destroy the set) DEPRECATED
|
||
|
CLI11_DEPRECATED(
|
||
|
"Use ->transform(CLI::IsMember(..., CLI::ignore_case, CLI::ignore_underscore)) with a (shared) pointer instead")
|
||
|
Option* add_mutable_set_ignore_case_underscore(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
const std::set<std::string>& options, ///< The set of possibilities
|
||
|
std::string option_description = "")
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description));
|
||
|
opt->transform(IsMember{ &options, CLI::ignore_underscore, CLI::ignore_case });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore underscore and case (default, static set) DEPRECATED
|
||
|
CLI11_DEPRECATED("Use ->transform(CLI::IsMember(..., CLI::ignore_case, CLI::ignore_underscore)) instead")
|
||
|
Option* add_set_ignore_case_underscore(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
std::set<std::string> options, ///< The set of possibilities
|
||
|
std::string option_description,
|
||
|
bool defaulted)
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description), defaulted);
|
||
|
opt->transform(IsMember{ options, CLI::ignore_underscore, CLI::ignore_case });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add set of options, string only, ignore underscore and case (default, set can be changed afterwards - do not
|
||
|
/// destroy the set) DEPRECATED
|
||
|
CLI11_DEPRECATED(
|
||
|
"Use ->transform(CLI::IsMember(..., CLI::ignore_case, CLI::ignore_underscore)) with a (shared) pointer instead")
|
||
|
Option* add_mutable_set_ignore_case_underscore(std::string option_name,
|
||
|
std::string& member, ///< The selected member of the set
|
||
|
const std::set<std::string>& options, ///< The set of possibilities
|
||
|
std::string option_description,
|
||
|
bool defaulted)
|
||
|
{
|
||
|
Option* opt = add_option(option_name, member, std::move(option_description), defaulted);
|
||
|
opt->transform(IsMember{ &options, CLI::ignore_underscore, CLI::ignore_case });
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Add a complex number
|
||
|
template<typename T>
|
||
|
Option* add_complex(std::string option_name,
|
||
|
T& variable,
|
||
|
std::string option_description = "",
|
||
|
bool defaulted = false,
|
||
|
std::string label = "COMPLEX")
|
||
|
{
|
||
|
std::string simple_name = CLI::detail::split(option_name, ',').at(0);
|
||
|
CLI::callback_t fun = [&variable, simple_name, label](results_t res) {
|
||
|
if (res[1].back() == 'i')
|
||
|
res[1].pop_back();
|
||
|
double x, y;
|
||
|
bool worked = detail::lexical_cast(res[0], x) && detail::lexical_cast(res[1], y);
|
||
|
if (worked)
|
||
|
variable = T(x, y);
|
||
|
return worked;
|
||
|
};
|
||
|
|
||
|
auto default_function = [&variable]() {
|
||
|
std::stringstream out;
|
||
|
out << variable;
|
||
|
return out.str();
|
||
|
};
|
||
|
|
||
|
CLI::Option* opt =
|
||
|
add_option(option_name, std::move(fun), std::move(option_description), defaulted, default_function);
|
||
|
|
||
|
opt->type_name(label)->type_size(2);
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Set a configuration ini file option, or clear it if no name passed
|
||
|
Option* set_config(std::string option_name = "",
|
||
|
std::string default_filename = "",
|
||
|
std::string help_message = "Read an ini file",
|
||
|
bool config_required = false)
|
||
|
{
|
||
|
// Remove existing config if present
|
||
|
if (config_ptr_ != nullptr)
|
||
|
remove_option(config_ptr_);
|
||
|
|
||
|
// Only add config if option passed
|
||
|
if (!option_name.empty())
|
||
|
{
|
||
|
config_name_ = default_filename;
|
||
|
config_required_ = config_required;
|
||
|
config_ptr_ = add_option(option_name, config_name_, help_message, !default_filename.empty());
|
||
|
config_ptr_->configurable(false);
|
||
|
}
|
||
|
|
||
|
return config_ptr_;
|
||
|
}
|
||
|
|
||
|
/// Removes an option from the App. Takes an option pointer. Returns true if found and removed.
|
||
|
bool remove_option(Option* opt)
|
||
|
{
|
||
|
// Make sure no links exist
|
||
|
for (Option_p& op : options_)
|
||
|
{
|
||
|
op->remove_needs(opt);
|
||
|
op->remove_excludes(opt);
|
||
|
}
|
||
|
|
||
|
if (help_ptr_ == opt)
|
||
|
help_ptr_ = nullptr;
|
||
|
if (help_all_ptr_ == opt)
|
||
|
help_all_ptr_ = nullptr;
|
||
|
|
||
|
auto iterator =
|
||
|
std::find_if(std::begin(options_), std::end(options_), [opt](const Option_p& v) { return v.get() == opt; });
|
||
|
if (iterator != std::end(options_))
|
||
|
{
|
||
|
options_.erase(iterator);
|
||
|
return true;
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
/// creates an option group as part of the given app
|
||
|
template<typename T = Option_group>
|
||
|
T* add_option_group(std::string group_name, std::string group_description = "")
|
||
|
{
|
||
|
auto option_group = std::make_shared<T>(std::move(group_description), group_name, nullptr);
|
||
|
auto ptr = option_group.get();
|
||
|
// move to App_p for overload resolution on older gcc versions
|
||
|
App_p app_ptr = std::dynamic_pointer_cast<App>(option_group);
|
||
|
add_subcommand(std::move(app_ptr));
|
||
|
return ptr;
|
||
|
}
|
||
|
|
||
|
///@}
|
||
|
/// @name Subcommmands
|
||
|
///@{
|
||
|
|
||
|
/// Add a subcommand. Inherits INHERITABLE and OptionDefaults, and help flag
|
||
|
App* add_subcommand(std::string subcommand_name = "", std::string subcommand_description = "")
|
||
|
{
|
||
|
CLI::App_p subcom = std::shared_ptr<App>(new App(std::move(subcommand_description), subcommand_name, this));
|
||
|
return add_subcommand(std::move(subcom));
|
||
|
}
|
||
|
|
||
|
/// Add a previously created app as a subcommand
|
||
|
App* add_subcommand(CLI::App_p subcom)
|
||
|
{
|
||
|
if (!subcom)
|
||
|
throw IncorrectConstruction("passed App is not valid");
|
||
|
if (!subcom->name_.empty())
|
||
|
{
|
||
|
for (const auto& subc : subcommands_)
|
||
|
if (subc->check_name(subcom->name_) || subcom->check_name(subc->name_))
|
||
|
throw OptionAlreadyAdded(subc->name_);
|
||
|
}
|
||
|
subcom->parent_ = this;
|
||
|
subcommands_.push_back(std::move(subcom));
|
||
|
return subcommands_.back().get();
|
||
|
}
|
||
|
|
||
|
/// Removes a subcommand from the App. Takes a subcommand pointer. Returns true if found and removed.
|
||
|
bool remove_subcommand(App* subcom)
|
||
|
{
|
||
|
// Make sure no links exist
|
||
|
for (App_p& sub : subcommands_)
|
||
|
{
|
||
|
sub->remove_excludes(subcom);
|
||
|
}
|
||
|
|
||
|
auto iterator = std::find_if(
|
||
|
std::begin(subcommands_), std::end(subcommands_), [subcom](const App_p& v) { return v.get() == subcom; });
|
||
|
if (iterator != std::end(subcommands_))
|
||
|
{
|
||
|
subcommands_.erase(iterator);
|
||
|
return true;
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
/// Check to see if a subcommand is part of this command (doesn't have to be in command line)
|
||
|
/// returns the first subcommand if passed a nullptr
|
||
|
App* get_subcommand(App* subcom) const
|
||
|
{
|
||
|
if (subcom == nullptr)
|
||
|
throw OptionNotFound("nullptr passed");
|
||
|
for (const App_p& subcomptr : subcommands_)
|
||
|
if (subcomptr.get() == subcom)
|
||
|
return subcom;
|
||
|
throw OptionNotFound(subcom->get_name());
|
||
|
}
|
||
|
|
||
|
/// Check to see if a subcommand is part of this command (text version)
|
||
|
App* get_subcommand(std::string subcom) const
|
||
|
{
|
||
|
auto subc = _find_subcommand(subcom, false, false);
|
||
|
if (subc == nullptr)
|
||
|
throw OptionNotFound(subcom);
|
||
|
return subc;
|
||
|
}
|
||
|
/// Get a pointer to subcommand by index
|
||
|
App* get_subcommand(int index = 0) const
|
||
|
{
|
||
|
if (index >= 0)
|
||
|
{
|
||
|
auto uindex = static_cast<unsigned>(index);
|
||
|
if (uindex < subcommands_.size())
|
||
|
return subcommands_[uindex].get();
|
||
|
}
|
||
|
throw OptionNotFound(std::to_string(index));
|
||
|
}
|
||
|
|
||
|
/// Check to see if a subcommand is part of this command and get a shared_ptr to it
|
||
|
CLI::App_p get_subcommand_ptr(App* subcom) const
|
||
|
{
|
||
|
if (subcom == nullptr)
|
||
|
throw OptionNotFound("nullptr passed");
|
||
|
for (const App_p& subcomptr : subcommands_)
|
||
|
if (subcomptr.get() == subcom)
|
||
|
return subcomptr;
|
||
|
throw OptionNotFound(subcom->get_name());
|
||
|
}
|
||
|
|
||
|
/// Check to see if a subcommand is part of this command (text version)
|
||
|
CLI::App_p get_subcommand_ptr(std::string subcom) const
|
||
|
{
|
||
|
for (const App_p& subcomptr : subcommands_)
|
||
|
if (subcomptr->check_name(subcom))
|
||
|
return subcomptr;
|
||
|
throw OptionNotFound(subcom);
|
||
|
}
|
||
|
|
||
|
/// Get an owning pointer to subcommand by index
|
||
|
CLI::App_p get_subcommand_ptr(int index = 0) const
|
||
|
{
|
||
|
if (index >= 0)
|
||
|
{
|
||
|
auto uindex = static_cast<unsigned>(index);
|
||
|
if (uindex < subcommands_.size())
|
||
|
return subcommands_[uindex];
|
||
|
}
|
||
|
throw OptionNotFound(std::to_string(index));
|
||
|
}
|
||
|
|
||
|
/// Check to see if an option group is part of this App
|
||
|
App* get_option_group(std::string group_name) const
|
||
|
{
|
||
|
for (const App_p& app : subcommands_)
|
||
|
{
|
||
|
if (app->name_.empty() && app->group_ == group_name)
|
||
|
{
|
||
|
return app.get();
|
||
|
}
|
||
|
}
|
||
|
throw OptionNotFound(group_name);
|
||
|
}
|
||
|
|
||
|
/// No argument version of count counts the number of times this subcommand was
|
||
|
/// passed in. The main app will return 1. Unnamed subcommands will also return 1 unless
|
||
|
/// otherwise modified in a callback
|
||
|
size_t count() const { return parsed_; }
|
||
|
|
||
|
/// Get a count of all the arguments processed in options and subcommands, this excludes arguments which were
|
||
|
/// treated as extras.
|
||
|
size_t count_all() const
|
||
|
{
|
||
|
size_t cnt{ 0 };
|
||
|
for (auto& opt : options_)
|
||
|
{
|
||
|
cnt += opt->count();
|
||
|
}
|
||
|
for (auto& sub : subcommands_)
|
||
|
{
|
||
|
cnt += sub->count_all();
|
||
|
}
|
||
|
if (!get_name().empty())
|
||
|
{ // for named subcommands add the number of times the subcommand was called
|
||
|
cnt += parsed_;
|
||
|
}
|
||
|
return cnt;
|
||
|
}
|
||
|
|
||
|
/// Changes the group membership
|
||
|
App* group(std::string group_name)
|
||
|
{
|
||
|
group_ = group_name;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// The argumentless form of require subcommand requires 1 or more subcommands
|
||
|
App* require_subcommand()
|
||
|
{
|
||
|
require_subcommand_min_ = 1;
|
||
|
require_subcommand_max_ = 0;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Require a subcommand to be given (does not affect help call)
|
||
|
/// The number required can be given. Negative values indicate maximum
|
||
|
/// number allowed (0 for any number). Max number inheritable.
|
||
|
App* require_subcommand(int value)
|
||
|
{
|
||
|
if (value < 0)
|
||
|
{
|
||
|
require_subcommand_min_ = 0;
|
||
|
require_subcommand_max_ = static_cast<size_t>(-value);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
require_subcommand_min_ = static_cast<size_t>(value);
|
||
|
require_subcommand_max_ = static_cast<size_t>(value);
|
||
|
}
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Explicitly control the number of subcommands required. Setting 0
|
||
|
/// for the max means unlimited number allowed. Max number inheritable.
|
||
|
App* require_subcommand(size_t min, size_t max)
|
||
|
{
|
||
|
require_subcommand_min_ = min;
|
||
|
require_subcommand_max_ = max;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// The argumentless form of require option requires 1 or more options be used
|
||
|
App* require_option()
|
||
|
{
|
||
|
require_option_min_ = 1;
|
||
|
require_option_max_ = 0;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Require an option to be given (does not affect help call)
|
||
|
/// The number required can be given. Negative values indicate maximum
|
||
|
/// number allowed (0 for any number).
|
||
|
App* require_option(int value)
|
||
|
{
|
||
|
if (value < 0)
|
||
|
{
|
||
|
require_option_min_ = 0;
|
||
|
require_option_max_ = static_cast<size_t>(-value);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
require_option_min_ = static_cast<size_t>(value);
|
||
|
require_option_max_ = static_cast<size_t>(value);
|
||
|
}
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Explicitly control the number of options required. Setting 0
|
||
|
/// for the max means unlimited number allowed. Max number inheritable.
|
||
|
App* require_option(size_t min, size_t max)
|
||
|
{
|
||
|
require_option_min_ = min;
|
||
|
require_option_max_ = max;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Stop subcommand fallthrough, so that parent commands cannot collect commands after subcommand.
|
||
|
/// Default from parent, usually set on parent.
|
||
|
App* fallthrough(bool value = true)
|
||
|
{
|
||
|
fallthrough_ = value;
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Check to see if this subcommand was parsed, true only if received on command line.
|
||
|
/// This allows the subcommand to be directly checked.
|
||
|
operator bool() const { return parsed_ > 0; }
|
||
|
|
||
|
///@}
|
||
|
/// @name Extras for subclassing
|
||
|
///@{
|
||
|
|
||
|
/// This allows subclasses to inject code before callbacks but after parse.
|
||
|
///
|
||
|
/// This does not run if any errors or help is thrown.
|
||
|
virtual void pre_callback() {}
|
||
|
|
||
|
///@}
|
||
|
/// @name Parsing
|
||
|
///@{
|
||
|
//
|
||
|
/// Reset the parsed data
|
||
|
void clear()
|
||
|
{
|
||
|
parsed_ = 0;
|
||
|
pre_parse_called_ = false;
|
||
|
|
||
|
missing_.clear();
|
||
|
parsed_subcommands_.clear();
|
||
|
for (const Option_p& opt : options_)
|
||
|
{
|
||
|
opt->clear();
|
||
|
}
|
||
|
for (const App_p& subc : subcommands_)
|
||
|
{
|
||
|
subc->clear();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Parses the command line - throws errors.
|
||
|
/// This must be called after the options are in but before the rest of the program.
|
||
|
void parse(int argc, const char* const* argv)
|
||
|
{
|
||
|
// If the name is not set, read from command line
|
||
|
if (name_.empty() || has_automatic_name_)
|
||
|
{
|
||
|
has_automatic_name_ = true;
|
||
|
name_ = argv[0];
|
||
|
}
|
||
|
|
||
|
std::vector<std::string> args;
|
||
|
args.reserve(static_cast<size_t>(argc - 1));
|
||
|
for (int i = argc - 1; i > 0; i--)
|
||
|
args.emplace_back(argv[i]);
|
||
|
parse(std::move(args));
|
||
|
}
|
||
|
|
||
|
/// Parse a single string as if it contained command line arguments.
|
||
|
/// This function splits the string into arguments then calls parse(std::vector<std::string> &)
|
||
|
/// the function takes an optional boolean argument specifying if the programName is included in the string to
|
||
|
/// process
|
||
|
void parse(std::string commandline, bool program_name_included = false)
|
||
|
{
|
||
|
if (program_name_included)
|
||
|
{
|
||
|
auto nstr = detail::split_program_name(commandline);
|
||
|
if ((name_.empty()) || (has_automatic_name_))
|
||
|
{
|
||
|
has_automatic_name_ = true;
|
||
|
name_ = nstr.first;
|
||
|
}
|
||
|
commandline = std::move(nstr.second);
|
||
|
}
|
||
|
else
|
||
|
detail::trim(commandline);
|
||
|
// the next section of code is to deal with quoted arguments after an '=' or ':' for windows like operations
|
||
|
if (!commandline.empty())
|
||
|
{
|
||
|
commandline = detail::find_and_modify(commandline, "=", detail::escape_detect);
|
||
|
if (allow_windows_style_options_)
|
||
|
commandline = detail::find_and_modify(commandline, ":", detail::escape_detect);
|
||
|
}
|
||
|
|
||
|
auto args = detail::split_up(std::move(commandline));
|
||
|
// remove all empty strings
|
||
|
args.erase(std::remove(args.begin(), args.end(), std::string{}), args.end());
|
||
|
std::reverse(args.begin(), args.end());
|
||
|
|
||
|
parse(std::move(args));
|
||
|
}
|
||
|
|
||
|
/// The real work is done here. Expects a reversed vector.
|
||
|
/// Changes the vector to the remaining options.
|
||
|
void parse(std::vector<std::string>& args)
|
||
|
{
|
||
|
// Clear if parsed
|
||
|
if (parsed_ > 0)
|
||
|
clear();
|
||
|
|
||
|
// parsed_ is incremented in commands/subcommands,
|
||
|
// but placed here to make sure this is cleared when
|
||
|
// running parse after an error is thrown, even by _validate or _configure.
|
||
|
parsed_ = 1;
|
||
|
_validate();
|
||
|
_configure();
|
||
|
// set the parent as nullptr as this object should be the top now
|
||
|
parent_ = nullptr;
|
||
|
parsed_ = 0;
|
||
|
|
||
|
_parse(args);
|
||
|
run_callback();
|
||
|
}
|
||
|
|
||
|
/// The real work is done here. Expects a reversed vector.
|
||
|
void parse(std::vector<std::string>&& args)
|
||
|
{
|
||
|
// Clear if parsed
|
||
|
if (parsed_ > 0)
|
||
|
clear();
|
||
|
|
||
|
// parsed_ is incremented in commands/subcommands,
|
||
|
// but placed here to make sure this is cleared when
|
||
|
// running parse after an error is thrown, even by _validate or _configure.
|
||
|
parsed_ = 1;
|
||
|
_validate();
|
||
|
_configure();
|
||
|
// set the parent as nullptr as this object should be the top now
|
||
|
parent_ = nullptr;
|
||
|
parsed_ = 0;
|
||
|
|
||
|
_parse(std::move(args));
|
||
|
run_callback();
|
||
|
}
|
||
|
|
||
|
/// Provide a function to print a help message. The function gets access to the App pointer and error.
|
||
|
void failure_message(std::function<std::string(const App*, const Error& e)> function)
|
||
|
{
|
||
|
failure_message_ = function;
|
||
|
}
|
||
|
|
||
|
/// Print a nice error message and return the exit code
|
||
|
int exit(const Error& e, std::ostream& out = std::cout, std::ostream& err = std::cerr) const
|
||
|
{
|
||
|
/// Avoid printing anything if this is a CLI::RuntimeError
|
||
|
if (dynamic_cast<const CLI::RuntimeError*>(&e) != nullptr)
|
||
|
return e.get_exit_code();
|
||
|
|
||
|
if (dynamic_cast<const CLI::CallForHelp*>(&e) != nullptr)
|
||
|
{
|
||
|
out << help();
|
||
|
return e.get_exit_code();
|
||
|
}
|
||
|
|
||
|
if (dynamic_cast<const CLI::CallForAllHelp*>(&e) != nullptr)
|
||
|
{
|
||
|
out << help("", AppFormatMode::All);
|
||
|
return e.get_exit_code();
|
||
|
}
|
||
|
|
||
|
if (e.get_exit_code() != static_cast<int>(ExitCodes::Success))
|
||
|
{
|
||
|
if (failure_message_)
|
||
|
err << failure_message_(this, e) << std::flush;
|
||
|
}
|
||
|
|
||
|
return e.get_exit_code();
|
||
|
}
|
||
|
|
||
|
///@}
|
||
|
/// @name Post parsing
|
||
|
///@{
|
||
|
|
||
|
/// Counts the number of times the given option was passed.
|
||
|
size_t count(std::string option_name) const { return get_option(option_name)->count(); }
|
||
|
|
||
|
/// Get a subcommand pointer list to the currently selected subcommands (after parsing by default, in command
|
||
|
/// line order; use parsed = false to get the original definition list.)
|
||
|
std::vector<App*> get_subcommands() const { return parsed_subcommands_; }
|
||
|
|
||
|
/// Get a filtered subcommand pointer list from the original definition list. An empty function will provide all
|
||
|
/// subcommands (const)
|
||
|
std::vector<const App*> get_subcommands(const std::function<bool(const App*)>& filter) const
|
||
|
{
|
||
|
std::vector<const App*> subcomms(subcommands_.size());
|
||
|
std::transform(std::begin(subcommands_), std::end(subcommands_), std::begin(subcomms), [](const App_p& v) {
|
||
|
return v.get();
|
||
|
});
|
||
|
|
||
|
if (filter)
|
||
|
{
|
||
|
subcomms.erase(std::remove_if(std::begin(subcomms),
|
||
|
std::end(subcomms),
|
||
|
[&filter](const App* app) { return !filter(app); }),
|
||
|
std::end(subcomms));
|
||
|
}
|
||
|
|
||
|
return subcomms;
|
||
|
}
|
||
|
|
||
|
/// Get a filtered subcommand pointer list from the original definition list. An empty function will provide all
|
||
|
/// subcommands
|
||
|
std::vector<App*> get_subcommands(const std::function<bool(App*)>& filter)
|
||
|
{
|
||
|
std::vector<App*> subcomms(subcommands_.size());
|
||
|
std::transform(std::begin(subcommands_), std::end(subcommands_), std::begin(subcomms), [](const App_p& v) {
|
||
|
return v.get();
|
||
|
});
|
||
|
|
||
|
if (filter)
|
||
|
{
|
||
|
subcomms.erase(
|
||
|
std::remove_if(std::begin(subcomms), std::end(subcomms), [&filter](App* app) { return !filter(app); }),
|
||
|
std::end(subcomms));
|
||
|
}
|
||
|
|
||
|
return subcomms;
|
||
|
}
|
||
|
|
||
|
/// Check to see if given subcommand was selected
|
||
|
bool got_subcommand(App* subcom) const
|
||
|
{
|
||
|
// get subcom needed to verify that this was a real subcommand
|
||
|
return get_subcommand(subcom)->parsed_ > 0;
|
||
|
}
|
||
|
|
||
|
/// Check with name instead of pointer to see if subcommand was selected
|
||
|
bool got_subcommand(std::string subcommand_name) const { return get_subcommand(subcommand_name)->parsed_ > 0; }
|
||
|
|
||
|
/// Sets excluded options for the subcommand
|
||
|
App* excludes(Option* opt)
|
||
|
{
|
||
|
if (opt == nullptr)
|
||
|
{
|
||
|
throw OptionNotFound("nullptr passed");
|
||
|
}
|
||
|
exclude_options_.insert(opt);
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Sets excluded subcommands for the subcommand
|
||
|
App* excludes(App* app)
|
||
|
{
|
||
|
if ((app == this) || (app == nullptr))
|
||
|
{
|
||
|
throw OptionNotFound("nullptr passed");
|
||
|
}
|
||
|
auto res = exclude_subcommands_.insert(app);
|
||
|
// subcommand exclusion should be symmetric
|
||
|
if (res.second)
|
||
|
{
|
||
|
app->exclude_subcommands_.insert(this);
|
||
|
}
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Removes an option from the excludes list of this subcommand
|
||
|
bool remove_excludes(Option* opt)
|
||
|
{
|
||
|
auto iterator = std::find(std::begin(exclude_options_), std::end(exclude_options_), opt);
|
||
|
if (iterator != std::end(exclude_options_))
|
||
|
{
|
||
|
exclude_options_.erase(iterator);
|
||
|
return true;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Removes a subcommand from this excludes list of this subcommand
|
||
|
bool remove_excludes(App* app)
|
||
|
{
|
||
|
auto iterator = std::find(std::begin(exclude_subcommands_), std::end(exclude_subcommands_), app);
|
||
|
if (iterator != std::end(exclude_subcommands_))
|
||
|
{
|
||
|
auto other_app = *iterator;
|
||
|
exclude_subcommands_.erase(iterator);
|
||
|
other_app->remove_excludes(this);
|
||
|
return true;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
///@}
|
||
|
/// @name Help
|
||
|
///@{
|
||
|
|
||
|
/// Set footer.
|
||
|
App* footer(std::string footer_string)
|
||
|
{
|
||
|
footer_ = std::move(footer_string);
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Produce a string that could be read in as a config of the current values of the App. Set default_also to
|
||
|
/// include default arguments. Prefix will add a string to the beginning of each option.
|
||
|
std::string config_to_str(bool default_also = false, bool write_description = false) const
|
||
|
{
|
||
|
return config_formatter_->to_config(this, default_also, write_description, "");
|
||
|
}
|
||
|
|
||
|
/// Makes a help message, using the currently configured formatter
|
||
|
/// Will only do one subcommand at a time
|
||
|
std::string help(std::string prev = "", AppFormatMode mode = AppFormatMode::Normal) const
|
||
|
{
|
||
|
if (prev.empty())
|
||
|
prev = get_name();
|
||
|
else
|
||
|
prev += " " + get_name();
|
||
|
|
||
|
// Delegate to subcommand if needed
|
||
|
auto selected_subcommands = get_subcommands();
|
||
|
if (!selected_subcommands.empty())
|
||
|
return selected_subcommands.at(0)->help(prev, mode);
|
||
|
else
|
||
|
return formatter_->make_help(this, prev, mode);
|
||
|
}
|
||
|
|
||
|
///@}
|
||
|
/// @name Getters
|
||
|
///@{
|
||
|
|
||
|
/// Access the formatter
|
||
|
std::shared_ptr<FormatterBase> get_formatter() const { return formatter_; }
|
||
|
|
||
|
/// Access the config formatter
|
||
|
std::shared_ptr<Config> get_config_formatter() const { return config_formatter_; }
|
||
|
|
||
|
/// Get the app or subcommand description
|
||
|
std::string get_description() const { return description_; }
|
||
|
|
||
|
/// Set the description of the app
|
||
|
App* description(std::string app_description)
|
||
|
{
|
||
|
description_ = std::move(app_description);
|
||
|
return this;
|
||
|
}
|
||
|
|
||
|
/// Get the list of options (user facing function, so returns raw pointers), has optional filter function
|
||
|
std::vector<const Option*> get_options(const std::function<bool(const Option*)> filter = {}) const
|
||
|
{
|
||
|
std::vector<const Option*> options(options_.size());
|
||
|
std::transform(std::begin(options_), std::end(options_), std::begin(options), [](const Option_p& val) {
|
||
|
return val.get();
|
||
|
});
|
||
|
|
||
|
if (filter)
|
||
|
{
|
||
|
options.erase(std::remove_if(std::begin(options),
|
||
|
std::end(options),
|
||
|
[&filter](const Option* opt) { return !filter(opt); }),
|
||
|
std::end(options));
|
||
|
}
|
||
|
|
||
|
return options;
|
||
|
}
|
||
|
|
||
|
/// Get an option by name (noexcept non-const version)
|
||
|
Option* get_option_no_throw(std::string option_name) noexcept
|
||
|
{
|
||
|
for (Option_p& opt : options_)
|
||
|
{
|
||
|
if (opt->check_name(option_name))
|
||
|
{
|
||
|
return opt.get();
|
||
|
}
|
||
|
}
|
||
|
for (auto& subc : subcommands_)
|
||
|
{
|
||
|
// also check down into nameless subcommands
|
||
|
if (subc->get_name().empty())
|
||
|
{
|
||
|
auto opt = subc->get_option_no_throw(option_name);
|
||
|
if (opt != nullptr)
|
||
|
{
|
||
|
return opt;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
/// Get an option by name (noexcept const version)
|
||
|
const Option* get_option_no_throw(std::string option_name) const noexcept
|
||
|
{
|
||
|
for (const Option_p& opt : options_)
|
||
|
{
|
||
|
if (opt->check_name(option_name))
|
||
|
{
|
||
|
return opt.get();
|
||
|
}
|
||
|
}
|
||
|
for (const auto& subc : subcommands_)
|
||
|
{
|
||
|
// also check down into nameless subcommands
|
||
|
if (subc->get_name().empty())
|
||
|
{
|
||
|
auto opt = subc->get_option_no_throw(option_name);
|
||
|
if (opt != nullptr)
|
||
|
{
|
||
|
return opt;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
/// Get an option by name
|
||
|
const Option* get_option(std::string option_name) const
|
||
|
{
|
||
|
auto opt = get_option_no_throw(option_name);
|
||
|
if (opt == nullptr)
|
||
|
{
|
||
|
throw OptionNotFound(option_name);
|
||
|
}
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Get an option by name (non-const version)
|
||
|
Option* get_option(std::string option_name)
|
||
|
{
|
||
|
auto opt = get_option_no_throw(option_name);
|
||
|
if (opt == nullptr)
|
||
|
{
|
||
|
throw OptionNotFound(option_name);
|
||
|
}
|
||
|
return opt;
|
||
|
}
|
||
|
|
||
|
/// Shortcut bracket operator for getting a pointer to an option
|
||
|
const Option* operator[](const std::string& option_name) const { return get_option(option_name); }
|
||
|
|
||
|
/// Shortcut bracket operator for getting a pointer to an option
|
||
|
const Option* operator[](const char* option_name) const { return get_option(option_name); }
|
||
|
|
||
|
/// Check the status of ignore_case
|
||
|
bool get_ignore_case() const { return ignore_case_; }
|
||
|
|
||
|
/// Check the status of ignore_underscore
|
||
|
bool get_ignore_underscore() const { return ignore_underscore_; }
|
||
|
|
||
|
/// Check the status of fallthrough
|
||
|
bool get_fallthrough() const { return fallthrough_; }
|
||
|
|
||
|
/// Check the status of the allow windows style options
|
||
|
bool get_allow_windows_style_options() const { return allow_windows_style_options_; }
|
||
|
|
||
|
/// Check the status of the allow windows style options
|
||
|
bool get_positionals_at_end() const { return positionals_at_end_; }
|
||
|
|
||
|
/// Get the group of this subcommand
|
||
|
const std::string& get_group() const { return group_; }
|
||
|
|
||
|
/// Get footer.
|
||
|
const std::string& get_footer() const { return footer_; }
|
||
|
|
||
|
/// Get the required min subcommand value
|
||
|
size_t get_require_subcommand_min() const { return require_subcommand_min_; }
|
||
|
|
||
|
/// Get the required max subcommand value
|
||
|
size_t get_require_subcommand_max() const { return require_subcommand_max_; }
|
||
|
|
||
|
/// Get the required min option value
|
||
|
size_t get_require_option_min() const { return require_option_min_; }
|
||
|
|
||
|
/// Get the required max option value
|
||
|
size_t get_require_option_max() const { return require_option_max_; }
|
||
|
|
||
|
/// Get the prefix command status
|
||
|
bool get_prefix_command() const { return prefix_command_; }
|
||
|
|
||
|
/// Get the status of allow extras
|
||
|
bool get_allow_extras() const { return allow_extras_; }
|
||
|
|
||
|
/// Get the status of required
|
||
|
bool get_required() const { return required_; }
|
||
|
|
||
|
/// Get the status of disabled
|
||
|
bool get_disabled() const { return disabled_; }
|
||
|
|
||
|
/// Get the status of disabled
|
||
|
bool get_immediate_callback() const { return immediate_callback_; }
|
||
|
|
||
|
/// Get the status of disabled by default
|
||
|
bool get_disabled_by_default() const { return disabled_by_default_; }
|
||
|
|
||
|
/// Get the status of disabled by default
|
||
|
bool get_enabled_by_default() const { return enabled_by_default_; }
|
||
|
/// Get the status of validating positionals
|
||
|
bool get_validate_positionals() const { return validate_positionals_; }
|
||
|
|
||
|
/// Get the status of allow extras
|
||
|
bool get_allow_config_extras() const { return allow_config_extras_; }
|
||
|
|
||
|
/// Get a pointer to the help flag.
|
||
|
Option* get_help_ptr() { return help_ptr_; }
|
||
|
|
||
|
/// Get a pointer to the help flag. (const)
|
||
|
const Option* get_help_ptr() const { return help_ptr_; }
|
||
|
|
||
|
/// Get a pointer to the help all flag. (const)
|
||
|
const Option* get_help_all_ptr() const { return help_all_ptr_; }
|
||
|
|
||
|
/// Get a pointer to the config option.
|
||
|
Option* get_config_ptr() { return config_ptr_; }
|
||
|
|
||
|
/// Get a pointer to the config option. (const)
|
||
|
const Option* get_config_ptr() const { return config_ptr_; }
|
||
|
|
||
|
/// Get the parent of this subcommand (or nullptr if master app)
|
||
|
App* get_parent() { return parent_; }
|
||
|
|
||
|
/// Get the parent of this subcommand (or nullptr if master app) (const version)
|
||
|
const App* get_parent() const { return parent_; }
|
||
|
|
||
|
/// Get the name of the current app
|
||
|
std::string get_name() const { return name_; }
|
||
|
|
||
|
/// Get a display name for an app
|
||
|
std::string get_display_name() const { return (!name_.empty()) ? name_ : "[Option Group: " + get_group() + "]"; }
|
||
|
|
||
|
/// Check the name, case insensitive and underscore insensitive if set
|
||
|
bool check_name(std::string name_to_check) const
|
||
|
{
|
||
|
std::string local_name = name_;
|
||
|
if (ignore_underscore_)
|
||
|
{
|
||
|
local_name = detail::remove_underscore(name_);
|
||
|
name_to_check = detail::remove_underscore(name_to_check);
|
||
|
}
|
||
|
if (ignore_case_)
|
||
|
{
|
||
|
local_name = detail::to_lower(name_);
|
||
|
name_to_check = detail::to_lower(name_to_check);
|
||
|
}
|
||
|
|
||
|
return local_name == name_to_check;
|
||
|
}
|
||
|
|
||
|
/// Get the groups available directly from this option (in order)
|
||
|
std::vector<std::string> get_groups() const
|
||
|
{
|
||
|
std::vector<std::string> groups;
|
||
|
|
||
|
for (const Option_p& opt : options_)
|
||
|
{
|
||
|
// Add group if it is not already in there
|
||
|
if (std::find(groups.begin(), groups.end(), opt->get_group()) == groups.end())
|
||
|
{
|
||
|
groups.push_back(opt->get_group());
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return groups;
|
||
|
}
|
||
|
|
||
|
/// This gets a vector of pointers with the original parse order
|
||
|
const std::vector<Option*>& parse_order() const { return parse_order_; }
|
||
|
|
||
|
/// This returns the missing options from the current subcommand
|
||
|
std::vector<std::string> remaining(bool recurse = false) const
|
||
|
{
|
||
|
std::vector<std::string> miss_list;
|
||
|
for (const std::pair<detail::Classifier, std::string>& miss : missing_)
|
||
|
{
|
||
|
miss_list.push_back(std::get<1>(miss));
|
||
|
}
|
||
|
// Get from a subcommand that may allow extras
|
||
|
if (recurse)
|
||
|
{
|
||
|
if (!allow_extras_)
|
||
|
{
|
||
|
for (const auto& sub : subcommands_)
|
||
|
{
|
||
|
if (sub->name_.empty() && !sub->missing_.empty())
|
||
|
{
|
||
|
for (const std::pair<detail::Classifier, std::string>& miss : sub->missing_)
|
||
|
{
|
||
|
miss_list.push_back(std::get<1>(miss));
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
// Recurse into subcommands
|
||
|
|
||
|
for (const App* sub : parsed_subcommands_)
|
||
|
{
|
||
|
std::vector<std::string> output = sub->remaining(recurse);
|
||
|
std::copy(std::begin(output), std::end(output), std::back_inserter(miss_list));
|
||
|
}
|
||
|
}
|
||
|
return miss_list;
|
||
|
}
|
||
|
|
||
|
/// This returns the missing options in a form ready for processing by another command line program
|
||
|
std::vector<std::string> remaining_for_passthrough(bool recurse = false) const
|
||
|
{
|
||
|
std::vector<std::string> miss_list = remaining(recurse);
|
||
|
std::reverse(std::begin(miss_list), std::end(miss_list));
|
||
|
return miss_list;
|
||
|
}
|
||
|
|
||
|
/// This returns the number of remaining options, minus the -- separator
|
||
|
size_t remaining_size(bool recurse = false) const
|
||
|
{
|
||
|
auto remaining_options = static_cast<size_t>(std::count_if(
|
||
|
std::begin(missing_), std::end(missing_), [](const std::pair<detail::Classifier, std::string>& val) {
|
||
|
return val.first != detail::Classifier::POSITIONAL_MARK;
|
||
|
}));
|
||
|
|
||
|
if (recurse)
|
||
|
{
|
||
|
for (const App_p& sub : subcommands_)
|
||
|
{
|
||
|
remaining_options += sub->remaining_size(recurse);
|
||
|
}
|
||
|
}
|
||
|
return remaining_options;
|
||
|
}
|
||
|
|
||
|
///@}
|
||
|
|
||
|
protected:
|
||
|
/// Check the options to make sure there are no conflicts.
|
||
|
///
|
||
|
/// Currently checks to see if multiple positionals exist with -1 args and checks if the min and max options are
|
||
|
/// feasible
|
||
|
void _validate() const
|
||
|
{
|
||
|
auto pcount = std::count_if(std::begin(options_), std::end(options_), [](const Option_p& opt) {
|
||
|
return opt->get_items_expected() < 0 && opt->get_positional();
|
||
|
});
|
||
|
if (pcount > 1)
|
||
|
throw InvalidError(name_);
|
||
|
|
||
|
size_t nameless_subs{ 0 };
|
||
|
for (const App_p& app : subcommands_)
|
||
|
{
|
||
|
app->_validate();
|
||
|
if (app->get_name().empty())
|
||
|
++nameless_subs;
|
||
|
}
|
||
|
|
||
|
if (require_option_min_ > 0)
|
||
|
{
|
||
|
if (require_option_max_ > 0)
|
||
|
{
|
||
|
if (require_option_max_ < require_option_min_)
|
||
|
{
|
||
|
throw(InvalidError("Required min options greater than required max options",
|
||
|
ExitCodes::InvalidError));
|
||
|
}
|
||
|
}
|
||
|
if (require_option_min_ > (options_.size() + nameless_subs))
|
||
|
{
|
||
|
throw(InvalidError("Required min options greater than number of available options",
|
||
|
ExitCodes::InvalidError));
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// configure subcommands to enable parsing through the current object
|
||
|
/// set the correct fallthrough and prefix for nameless subcommands and manage the automatic enable or disable
|
||
|
/// makes sure parent is set correctly
|
||
|
void _configure()
|
||
|
{
|
||
|
if (disabled_by_default_)
|
||
|
{
|
||
|
disabled_ = true;
|
||
|
}
|
||
|
if (enabled_by_default_)
|
||
|
{
|
||
|
disabled_ = false;
|
||
|
}
|
||
|
for (const App_p& app : subcommands_)
|
||
|
{
|
||
|
if (app->has_automatic_name_)
|
||
|
{
|
||
|
app->name_.clear();
|
||
|
}
|
||
|
if (app->name_.empty())
|
||
|
{
|
||
|
app->fallthrough_ = false; // make sure fallthrough_ is false to prevent infinite loop
|
||
|
app->prefix_command_ = false;
|
||
|
}
|
||
|
// make sure the parent is set to be this object in preparation for parse
|
||
|
app->parent_ = this;
|
||
|
app->_configure();
|
||
|
}
|
||
|
}
|
||
|
/// Internal function to run (App) callback, bottom up
|
||
|
void run_callback()
|
||
|
{
|
||
|
pre_callback();
|
||
|
// run the callbacks for the received subcommands
|
||
|
for (App* subc : get_subcommands())
|
||
|
{
|
||
|
if (!subc->immediate_callback_)
|
||
|
subc->run_callback();
|
||
|
}
|
||
|
// now run callbacks for option_groups
|
||
|
for (auto& subc : subcommands_)
|
||
|
{
|
||
|
if (!subc->immediate_callback_ && subc->name_.empty() && subc->count_all() > 0)
|
||
|
{
|
||
|
subc->run_callback();
|
||
|
}
|
||
|
}
|
||
|
// finally run the main callback
|
||
|
if (callback_ && (parsed_ > 0))
|
||
|
{
|
||
|
if (!name_.empty() || count_all() > 0)
|
||
|
{
|
||
|
callback_();
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Check to see if a subcommand is valid. Give up immediately if subcommand max has been reached.
|
||
|
bool _valid_subcommand(const std::string& current, bool ignore_used = true) const
|
||
|
{
|
||
|
// Don't match if max has been reached - but still check parents
|
||
|
if (require_subcommand_max_ != 0 && parsed_subcommands_.size() >= require_subcommand_max_)
|
||
|
{
|
||
|
return parent_ != nullptr && parent_->_valid_subcommand(current, ignore_used);
|
||
|
}
|
||
|
auto com = _find_subcommand(current, true, ignore_used);
|
||
|
if (com != nullptr)
|
||
|
{
|
||
|
return true;
|
||
|
}
|
||
|
// Check parent if exists, else return false
|
||
|
return parent_ != nullptr && parent_->_valid_subcommand(current, ignore_used);
|
||
|
}
|
||
|
|
||
|
/// Selects a Classifier enum based on the type of the current argument
|
||
|
detail::Classifier _recognize(const std::string& current, bool ignore_used_subcommands = true) const
|
||
|
{
|
||
|
std::string dummy1, dummy2;
|
||
|
|
||
|
if (current == "--")
|
||
|
return detail::Classifier::POSITIONAL_MARK;
|
||
|
if (_valid_subcommand(current, ignore_used_subcommands))
|
||
|
return detail::Classifier::SUBCOMMAND;
|
||
|
if (detail::split_long(current, dummy1, dummy2))
|
||
|
return detail::Classifier::LONG;
|
||
|
if (detail::split_short(current, dummy1, dummy2))
|
||
|
return detail::Classifier::SHORT;
|
||
|
if ((allow_windows_style_options_) && (detail::split_windows_style(current, dummy1, dummy2)))
|
||
|
return detail::Classifier::WINDOWS;
|
||
|
if ((current == "++") && !name_.empty() && parent_ != nullptr)
|
||
|
return detail::Classifier::SUBCOMMAND_TERMINATOR;
|
||
|
return detail::Classifier::NONE;
|
||
|
}
|
||
|
|
||
|
// The parse function is now broken into several parts, and part of process
|
||
|
|
||
|
/// Read and process an ini file (main app only)
|
||
|
void _process_ini()
|
||
|
{
|
||
|
// Process an INI file
|
||
|
if (config_ptr_ != nullptr)
|
||
|
{
|
||
|
if (*config_ptr_)
|
||
|
{
|
||
|
config_ptr_->run_callback();
|
||
|
config_required_ = true;
|
||
|
}
|
||
|
if (!config_name_.empty())
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
std::vector<ConfigItem> values = config_formatter_->from_file(config_name_);
|
||
|
_parse_config(values);
|
||
|
}
|
||
|
catch (const FileError&)
|
||
|
{
|
||
|
if (config_required_)
|
||
|
throw;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Get envname options if not yet passed. Runs on *all* subcommands.
|
||
|
void _process_env()
|
||
|
{
|
||
|
for (const Option_p& opt : options_)
|
||
|
{
|
||
|
if (opt->count() == 0 && !opt->envname_.empty())
|
||
|
{
|
||
|
char* buffer = nullptr;
|
||
|
std::string ename_string;
|
||
|
|
||
|
#ifdef _MSC_VER
|
||
|
// Windows version
|
||
|
size_t sz = 0;
|
||
|
if (_dupenv_s(&buffer, &sz, opt->envname_.c_str()) == 0 && buffer != nullptr)
|
||
|
{
|
||
|
ename_string = std::string(buffer);
|
||
|
free(buffer);
|
||
|
}
|
||
|
#else
|
||
|
// This also works on Windows, but gives a warning
|
||
|
buffer = std::getenv(opt->envname_.c_str());
|
||
|
if (buffer != nullptr)
|
||
|
ename_string = std::string(buffer);
|
||
|
#endif
|
||
|
|
||
|
if (!ename_string.empty())
|
||
|
{
|
||
|
opt->add_result(ename_string);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
for (App_p& sub : subcommands_)
|
||
|
{
|
||
|
if (sub->get_name().empty() || !sub->immediate_callback_)
|
||
|
sub->_process_env();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Process callbacks. Runs on *all* subcommands.
|
||
|
void _process_callbacks()
|
||
|
{
|
||
|
for (App_p& sub : subcommands_)
|
||
|
{
|
||
|
// process the priority option_groups first
|
||
|
if (sub->get_name().empty() && sub->immediate_callback_)
|
||
|
{
|
||
|
if (sub->count_all() > 0)
|
||
|
{
|
||
|
sub->_process_callbacks();
|
||
|
sub->run_callback();
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
for (const Option_p& opt : options_)
|
||
|
{
|
||
|
if (opt->count() > 0 && !opt->get_callback_run())
|
||
|
{
|
||
|
opt->run_callback();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
for (App_p& sub : subcommands_)
|
||
|
{
|
||
|
if (!sub->immediate_callback_)
|
||
|
{
|
||
|
sub->_process_callbacks();
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Run help flag processing if any are found.
|
||
|
///
|
||
|
/// The flags allow recursive calls to remember if there was a help flag on a parent.
|
||
|
void _process_help_flags(bool trigger_help = false, bool trigger_all_help = false) const
|
||
|
{
|
||
|
const Option* help_ptr = get_help_ptr();
|
||
|
const Option* help_all_ptr = get_help_all_ptr();
|
||
|
|
||
|
if (help_ptr != nullptr && help_ptr->count() > 0)
|
||
|
trigger_help = true;
|
||
|
if (help_all_ptr != nullptr && help_all_ptr->count() > 0)
|
||
|
trigger_all_help = true;
|
||
|
|
||
|
// If there were parsed subcommands, call those. First subcommand wins if there are multiple ones.
|
||
|
if (!parsed_subcommands_.empty())
|
||
|
{
|
||
|
for (const App* sub : parsed_subcommands_)
|
||
|
sub->_process_help_flags(trigger_help, trigger_all_help);
|
||
|
|
||
|
// Only the final subcommand should call for help. All help wins over help.
|
||
|
}
|
||
|
else if (trigger_all_help)
|
||
|
{
|
||
|
throw CallForAllHelp();
|
||
|
}
|
||
|
else if (trigger_help)
|
||
|
{
|
||
|
throw CallForHelp();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Verify required options and cross requirements. Subcommands too (only if selected).
|
||
|
void _process_requirements()
|
||
|
{
|
||
|
// check excludes
|
||
|
bool excluded{ false };
|
||
|
std::string excluder;
|
||
|
for (auto& opt : exclude_options_)
|
||
|
{
|
||
|
if (opt->count() > 0)
|
||
|
{
|
||
|
excluded = true;
|
||
|
excluder = opt->get_name();
|
||
|
}
|
||
|
}
|
||
|
for (auto& subc : exclude_subcommands_)
|
||
|
{
|
||
|
if (subc->count_all() > 0)
|
||
|
{
|
||
|
excluded = true;
|
||
|
excluder = subc->get_display_name();
|
||
|
}
|
||
|
}
|
||
|
if (excluded)
|
||
|
{
|
||
|
if (count_all() > 0)
|
||
|
{
|
||
|
throw ExcludesError(get_display_name(), excluder);
|
||
|
}
|
||
|
// if we are excluded but didn't receive anything, just return
|
||
|
return;
|
||
|
}
|
||
|
size_t used_options = 0;
|
||
|
for (const Option_p& opt : options_)
|
||
|
{
|
||
|
if (opt->count() != 0)
|
||
|
{
|
||
|
++used_options;
|
||
|
}
|
||
|
// Required or partially filled
|
||
|
if (opt->get_required() || opt->count() != 0)
|
||
|
{
|
||
|
// Make sure enough -N arguments parsed (+N is already handled in parsing function)
|
||
|
if (opt->get_items_expected() < 0 && opt->count() < static_cast<size_t>(-opt->get_items_expected()))
|
||
|
throw ArgumentMismatch::AtLeast(opt->get_name(), -opt->get_items_expected());
|
||
|
|
||
|
// Required but empty
|
||
|
if (opt->get_required() && opt->count() == 0)
|
||
|
throw RequiredError(opt->get_name());
|
||
|
}
|
||
|
// Requires
|
||
|
for (const Option* opt_req : opt->needs_)
|
||
|
if (opt->count() > 0 && opt_req->count() == 0)
|
||
|
throw RequiresError(opt->get_name(), opt_req->get_name());
|
||
|
// Excludes
|
||
|
for (const Option* opt_ex : opt->excludes_)
|
||
|
if (opt->count() > 0 && opt_ex->count() != 0)
|
||
|
throw ExcludesError(opt->get_name(), opt_ex->get_name());
|
||
|
}
|
||
|
// check for the required number of subcommands
|
||
|
if (require_subcommand_min_ > 0)
|
||
|
{
|
||
|
auto selected_subcommands = get_subcommands();
|
||
|
if (require_subcommand_min_ > selected_subcommands.size())
|
||
|
throw RequiredError::Subcommand(require_subcommand_min_);
|
||
|
}
|
||
|
|
||
|
// Max error cannot occur, the extra subcommand will parse as an ExtrasError or a remaining item.
|
||
|
|
||
|
// run this loop to check how many unnamed subcommands were actually used since they are considered options from
|
||
|
// the perspective of an App
|
||
|
for (App_p& sub : subcommands_)
|
||
|
{
|
||
|
if (sub->disabled_)
|
||
|
continue;
|
||
|
if (sub->name_.empty() && sub->count_all() > 0)
|
||
|
{
|
||
|
++used_options;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (require_option_min_ > used_options || (require_option_max_ > 0 && require_option_max_ < used_options))
|
||
|
{
|
||
|
auto option_list = detail::join(options_, [](const Option_p& ptr) { return ptr->get_name(false, true); });
|
||
|
if (option_list.compare(0, 10, "-h,--help,") == 0)
|
||
|
{
|
||
|
option_list.erase(0, 10);
|
||
|
}
|
||
|
auto subc_list = get_subcommands([](App* app) { return ((app->get_name().empty()) && (!app->disabled_)); });
|
||
|
if (!subc_list.empty())
|
||
|
{
|
||
|
option_list += "," + detail::join(subc_list, [](const App* app) { return app->get_display_name(); });
|
||
|
}
|
||
|
throw RequiredError::Option(require_option_min_, require_option_max_, used_options, option_list);
|
||
|
}
|
||
|
|
||
|
// now process the requirements for subcommands if needed
|
||
|
for (App_p& sub : subcommands_)
|
||
|
{
|
||
|
if (sub->disabled_)
|
||
|
continue;
|
||
|
if (sub->name_.empty() && sub->required_ == false)
|
||
|
{
|
||
|
if (sub->count_all() == 0)
|
||
|
{
|
||
|
if (require_option_min_ > 0 && require_option_min_ <= used_options)
|
||
|
{
|
||
|
continue;
|
||
|
// if we have met the requirement and there is nothing in this option group skip checking
|
||
|
// requirements
|
||
|
}
|
||
|
if (require_option_max_ > 0 && used_options >= require_option_min_)
|
||
|
{
|
||
|
continue;
|
||
|
// if we have met the requirement and there is nothing in this option group skip checking
|
||
|
// requirements
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
if (sub->count() > 0 || sub->name_.empty())
|
||
|
{
|
||
|
sub->_process_requirements();
|
||
|
}
|
||
|
|
||
|
if (sub->required_ && sub->count_all() == 0)
|
||
|
{
|
||
|
throw(CLI::RequiredError(sub->get_display_name()));
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Process callbacks and such.
|
||
|
void _process()
|
||
|
{
|
||
|
_process_ini();
|
||
|
_process_env();
|
||
|
_process_callbacks();
|
||
|
_process_help_flags();
|
||
|
_process_requirements();
|
||
|
}
|
||
|
|
||
|
/// Throw an error if anything is left over and should not be.
|
||
|
void _process_extras()
|
||
|
{
|
||
|
if (!(allow_extras_ || prefix_command_))
|
||
|
{
|
||
|
size_t num_left_over = remaining_size();
|
||
|
if (num_left_over > 0)
|
||
|
{
|
||
|
throw ExtrasError(remaining(false));
|
||
|
}
|
||
|
}
|
||
|
|
||
|
for (App_p& sub : subcommands_)
|
||
|
{
|
||
|
if (sub->count() > 0)
|
||
|
sub->_process_extras();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Throw an error if anything is left over and should not be.
|
||
|
/// Modifies the args to fill in the missing items before throwing.
|
||
|
void _process_extras(std::vector<std::string>& args)
|
||
|
{
|
||
|
if (!(allow_extras_ || prefix_command_))
|
||
|
{
|
||
|
size_t num_left_over = remaining_size();
|
||
|
if (num_left_over > 0)
|
||
|
{
|
||
|
args = remaining(false);
|
||
|
throw ExtrasError(args);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
for (App_p& sub : subcommands_)
|
||
|
{
|
||
|
if (sub->count() > 0)
|
||
|
sub->_process_extras(args);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Internal function to recursively increment the parsed counter on the current app as well unnamed subcommands
|
||
|
void increment_parsed()
|
||
|
{
|
||
|
++parsed_;
|
||
|
for (App_p& sub : subcommands_)
|
||
|
{
|
||
|
if (sub->get_name().empty())
|
||
|
sub->increment_parsed();
|
||
|
}
|
||
|
}
|
||
|
/// Internal parse function
|
||
|
void _parse(std::vector<std::string>& args)
|
||
|
{
|
||
|
increment_parsed();
|
||
|
_trigger_pre_parse(args.size());
|
||
|
bool positional_only = false;
|
||
|
|
||
|
while (!args.empty())
|
||
|
{
|
||
|
if (!_parse_single(args, positional_only))
|
||
|
{
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (parent_ == nullptr)
|
||
|
{
|
||
|
_process();
|
||
|
|
||
|
// Throw error if any items are left over (depending on settings)
|
||
|
_process_extras(args);
|
||
|
|
||
|
// Convert missing (pairs) to extras (string only) ready for processing in another app
|
||
|
args = remaining_for_passthrough(false);
|
||
|
}
|
||
|
else if (immediate_callback_)
|
||
|
{
|
||
|
_process_env();
|
||
|
_process_callbacks();
|
||
|
_process_help_flags();
|
||
|
_process_requirements();
|
||
|
run_callback();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Internal parse function
|
||
|
void _parse(std::vector<std::string>&& args)
|
||
|
{
|
||
|
// this can only be called by the top level in which case parent == nullptr by definition
|
||
|
// operation is simplified
|
||
|
increment_parsed();
|
||
|
_trigger_pre_parse(args.size());
|
||
|
bool positional_only = false;
|
||
|
|
||
|
while (!args.empty())
|
||
|
{
|
||
|
_parse_single(args, positional_only);
|
||
|
}
|
||
|
_process();
|
||
|
|
||
|
// Throw error if any items are left over (depending on settings)
|
||
|
_process_extras();
|
||
|
}
|
||
|
|
||
|
/// Parse one config param, return false if not found in any subcommand, remove if it is
|
||
|
///
|
||
|
/// If this has more than one dot.separated.name, go into the subcommand matching it
|
||
|
/// Returns true if it managed to find the option, if false you'll need to remove the arg manually.
|
||
|
void _parse_config(std::vector<ConfigItem>& args)
|
||
|
{
|
||
|
for (ConfigItem item : args)
|
||
|
{
|
||
|
if (!_parse_single_config(item) && !allow_config_extras_)
|
||
|
throw ConfigError::Extras(item.fullname());
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Fill in a single config option
|
||
|
bool _parse_single_config(const ConfigItem& item, size_t level = 0)
|
||
|
{
|
||
|
if (level < item.parents.size())
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
auto subcom = get_subcommand(item.parents.at(level));
|
||
|
return subcom->_parse_single_config(item, level + 1);
|
||
|
}
|
||
|
catch (const OptionNotFound&)
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
Option* op = get_option_no_throw("--" + item.name);
|
||
|
if (op == nullptr)
|
||
|
{
|
||
|
// If the option was not present
|
||
|
if (get_allow_config_extras())
|
||
|
// Should we worry about classifying the extras properly?
|
||
|
missing_.emplace_back(detail::Classifier::NONE, item.fullname());
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if (!op->get_configurable())
|
||
|
throw ConfigError::NotConfigurable(item.fullname());
|
||
|
|
||
|
if (op->empty())
|
||
|
{
|
||
|
// Flag parsing
|
||
|
if (op->get_type_size() == 0)
|
||
|
{
|
||
|
auto res = config_formatter_->to_flag(item);
|
||
|
res = op->get_flag_value(item.name, res);
|
||
|
|
||
|
op->add_result(res);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
op->add_result(item.inputs);
|
||
|
op->run_callback();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
/// Parse "one" argument (some may eat more than one), delegate to parent if fails, add to missing if missing
|
||
|
/// from master return false if the parse has failed and needs to return to parent
|
||
|
bool _parse_single(std::vector<std::string>& args, bool& positional_only)
|
||
|
{
|
||
|
bool retval = true;
|
||
|
detail::Classifier classifier = positional_only ? detail::Classifier::NONE : _recognize(args.back());
|
||
|
switch (classifier)
|
||
|
{
|
||
|
case detail::Classifier::POSITIONAL_MARK:
|
||
|
args.pop_back();
|
||
|
positional_only = true;
|
||
|
if ((!_has_remaining_positionals()) && (parent_ != nullptr))
|
||
|
{
|
||
|
retval = false;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
_move_to_missing(classifier, "--");
|
||
|
}
|
||
|
break;
|
||
|
case detail::Classifier::SUBCOMMAND_TERMINATOR:
|
||
|
// treat this like a positional mark if in the parent app
|
||
|
args.pop_back();
|
||
|
retval = false;
|
||
|
break;
|
||
|
case detail::Classifier::SUBCOMMAND:
|
||
|
retval = _parse_subcommand(args);
|
||
|
break;
|
||
|
case detail::Classifier::LONG:
|
||
|
case detail::Classifier::SHORT:
|
||
|
case detail::Classifier::WINDOWS:
|
||
|
// If already parsed a subcommand, don't accept options_
|
||
|
_parse_arg(args, classifier);
|
||
|
break;
|
||
|
case detail::Classifier::NONE:
|
||
|
// Probably a positional or something for a parent (sub)command
|
||
|
retval = _parse_positional(args);
|
||
|
if (retval && positionals_at_end_)
|
||
|
{
|
||
|
positional_only = true;
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
// LCOV_EXCL_START
|
||
|
default:
|
||
|
HorribleError("unrecognized classifier (you should not see this!)");
|
||
|
// LCOV_EXCL_END
|
||
|
}
|
||
|
return retval;
|
||
|
}
|
||
|
|
||
|
/// Count the required remaining positional arguments
|
||
|
size_t _count_remaining_positionals(bool required_only = false) const
|
||
|
{
|
||
|
size_t retval = 0;
|
||
|
for (const Option_p& opt : options_)
|
||
|
if (opt->get_positional() && (!required_only || opt->get_required()) && opt->get_items_expected() > 0 &&
|
||
|
static_cast<int>(opt->count()) < opt->get_items_expected())
|
||
|
retval = static_cast<size_t>(opt->get_items_expected()) - opt->count();
|
||
|
|
||
|
return retval;
|
||
|
}
|
||
|
|
||
|
/// Count the required remaining positional arguments
|
||
|
bool _has_remaining_positionals() const
|
||
|
{
|
||
|
for (const Option_p& opt : options_)
|
||
|
if (opt->get_positional() &&
|
||
|
((opt->get_items_expected() < 0) || ((static_cast<int>(opt->count()) < opt->get_items_expected()))))
|
||
|
return true;
|
||
|
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
/// Parse a positional, go up the tree to check
|
||
|
/// Return true if the positional was used false otherwise
|
||
|
bool _parse_positional(std::vector<std::string>& args)
|
||
|
{
|
||
|
const std::string& positional = args.back();
|
||
|
for (const Option_p& opt : options_)
|
||
|
{
|
||
|
// Eat options, one by one, until done
|
||
|
if (opt->get_positional() &&
|
||
|
(static_cast<int>(opt->count()) < opt->get_items_expected() || opt->get_items_expected() < 0))
|
||
|
{
|
||
|
if (validate_positionals_)
|
||
|
{
|
||
|
std::string pos = positional;
|
||
|
pos = opt->_validate(pos);
|
||
|
if (!pos.empty())
|
||
|
{
|
||
|
continue;
|
||
|
}
|
||
|
}
|
||
|
opt->add_result(positional);
|
||
|
parse_order_.push_back(opt.get());
|
||
|
args.pop_back();
|
||
|
return true;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
for (auto& subc : subcommands_)
|
||
|
{
|
||
|
if ((subc->name_.empty()) && (!subc->disabled_))
|
||
|
{
|
||
|
if (subc->_parse_positional(args))
|
||
|
{
|
||
|
if (!subc->pre_parse_called_)
|
||
|
{
|
||
|
subc->_trigger_pre_parse(args.size());
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
// let the parent deal with it if possible
|
||
|
if (parent_ != nullptr && fallthrough_)
|
||
|
return _get_fallthrough_parent()->_parse_positional(args);
|
||
|
|
||
|
/// Try to find a local subcommand that is repeated
|
||
|
auto com = _find_subcommand(args.back(), true, false);
|
||
|
if (com != nullptr && (require_subcommand_max_ == 0 || require_subcommand_max_ > parsed_subcommands_.size()))
|
||
|
{
|
||
|
args.pop_back();
|
||
|
com->_parse(args);
|
||
|
return true;
|
||
|
}
|
||
|
/// now try one last gasp at subcommands that have been executed before, go to root app and try to find a
|
||
|
/// subcommand in a broader way, if one exists let the parent deal with it
|
||
|
auto parent_app = (parent_ != nullptr) ? _get_fallthrough_parent() : this;
|
||
|
com = parent_app->_find_subcommand(args.back(), true, false);
|
||
|
if (com != nullptr && (com->parent_->require_subcommand_max_ == 0 ||
|
||
|
com->parent_->require_subcommand_max_ > com->parent_->parsed_subcommands_.size()))
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if (positionals_at_end_)
|
||
|
{
|
||
|
throw CLI::ExtrasError(args);
|
||
|
}
|
||
|
/// If this is an option group don't deal with it
|
||
|
if (parent_ != nullptr && name_.empty())
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
/// We are out of other options this goes to missing
|
||
|
_move_to_missing(detail::Classifier::NONE, positional);
|
||
|
args.pop_back();
|
||
|
if (prefix_command_)
|
||
|
{
|
||
|
while (!args.empty())
|
||
|
{
|
||
|
_move_to_missing(detail::Classifier::NONE, args.back());
|
||
|
args.pop_back();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
/// Locate a subcommand by name with two conditions, should disabled subcommands be ignored, and should used
|
||
|
/// subcommands be ignored
|
||
|
App* _find_subcommand(const std::string& subc_name, bool ignore_disabled, bool ignore_used) const noexcept
|
||
|
{
|
||
|
for (const App_p& com : subcommands_)
|
||
|
{
|
||
|
if (com->disabled_ && ignore_disabled)
|
||
|
continue;
|
||
|
if (com->get_name().empty())
|
||
|
{
|
||
|
auto subc = com->_find_subcommand(subc_name, ignore_disabled, ignore_used);
|
||
|
if (subc != nullptr)
|
||
|
{
|
||
|
return subc;
|
||
|
}
|
||
|
}
|
||
|
else if (com->check_name(subc_name))
|
||
|
{
|
||
|
if ((!*com) || !ignore_used)
|
||
|
return com.get();
|
||
|
}
|
||
|
}
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
/// Parse a subcommand, modify args and continue
|
||
|
///
|
||
|
/// Unlike the others, this one will always allow fallthrough
|
||
|
/// return true if the subcommand was processed false otherwise
|
||
|
bool _parse_subcommand(std::vector<std::string>& args)
|
||
|
{
|
||
|
if (_count_remaining_positionals(/* required */ true) > 0)
|
||
|
{
|
||
|
_parse_positional(args);
|
||
|
return true;
|
||
|
}
|
||
|
auto com = _find_subcommand(args.back(), true, true);
|
||
|
if (com != nullptr)
|
||
|
{
|
||
|
args.pop_back();
|
||
|
parsed_subcommands_.push_back(com);
|
||
|
com->_parse(args);
|
||
|
auto parent_app = com->parent_;
|
||
|
while (parent_app != this)
|
||
|
{
|
||
|
parent_app->_trigger_pre_parse(args.size());
|
||
|
parent_app->parsed_subcommands_.push_back(com);
|
||
|
parent_app = parent_app->parent_;
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
if (parent_ == nullptr)
|
||
|
throw HorribleError("Subcommand " + args.back() + " missing");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
/// Parse a short (false) or long (true) argument, must be at the top of the list
|
||
|
/// return true if the argument was processed or false if nothing was done
|
||
|
bool _parse_arg(std::vector<std::string>& args, detail::Classifier current_type)
|
||
|
{
|
||
|
std::string current = args.back();
|
||
|
|
||
|
std::string arg_name;
|
||
|
std::string value;
|
||
|
std::string rest;
|
||
|
|
||
|
switch (current_type)
|
||
|
{
|
||
|
case detail::Classifier::LONG:
|
||
|
if (!detail::split_long(current, arg_name, value))
|
||
|
throw HorribleError("Long parsed but missing (you should not see this):" + args.back());
|
||
|
break;
|
||
|
case detail::Classifier::SHORT:
|
||
|
if (!detail::split_short(current, arg_name, rest))
|
||
|
throw HorribleError("Short parsed but missing! You should not see this");
|
||
|
break;
|
||
|
case detail::Classifier::WINDOWS:
|
||
|
if (!detail::split_windows_style(current, arg_name, value))
|
||
|
throw HorribleError("windows option parsed but missing! You should not see this");
|
||
|
break;
|
||
|
case detail::Classifier::SUBCOMMAND:
|
||
|
case detail::Classifier::POSITIONAL_MARK:
|
||
|
case detail::Classifier::NONE:
|
||
|
default:
|
||
|
throw HorribleError("parsing got called with invalid option! You should not see this");
|
||
|
}
|
||
|
|
||
|
auto op_ptr =
|
||
|
std::find_if(std::begin(options_), std::end(options_), [arg_name, current_type](const Option_p& opt) {
|
||
|
if (current_type == detail::Classifier::LONG)
|
||
|
return opt->check_lname(arg_name);
|
||
|
if (current_type == detail::Classifier::SHORT)
|
||
|
return opt->check_sname(arg_name);
|
||
|
// this will only get called for detail::Classifier::WINDOWS
|
||
|
return opt->check_lname(arg_name) || opt->check_sname(arg_name);
|
||
|
});
|
||
|
|
||
|
// Option not found
|
||
|
if (op_ptr == std::end(options_))
|
||
|
{
|
||
|
for (auto& subc : subcommands_)
|
||
|
{
|
||
|
if (subc->name_.empty() && !subc->disabled_)
|
||
|
{
|
||
|
if (subc->_parse_arg(args, current_type))
|
||
|
{
|
||
|
if (!subc->pre_parse_called_)
|
||
|
{
|
||
|
subc->_trigger_pre_parse(args.size());
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
// If a subcommand, try the master command
|
||
|
if (parent_ != nullptr && fallthrough_)
|
||
|
return _get_fallthrough_parent()->_parse_arg(args, current_type);
|
||
|
// don't capture missing if this is a nameless subcommand
|
||
|
if (parent_ != nullptr && name_.empty())
|
||
|
{
|
||
|
return false;
|
||
|
}
|
||
|
// Otherwise, add to missing
|
||
|
args.pop_back();
|
||
|
_move_to_missing(current_type, current);
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
args.pop_back();
|
||
|
|
||
|
// Get a reference to the pointer to make syntax bearable
|
||
|
Option_p& op = *op_ptr;
|
||
|
|
||
|
int num = op->get_items_expected();
|
||
|
|
||
|
// Make sure we always eat the minimum for unlimited vectors
|
||
|
int collected = 0;
|
||
|
int result_count = 0;
|
||
|
// deal with flag like things
|
||
|
if (num == 0)
|
||
|
{
|
||
|
auto res = op->get_flag_value(arg_name, value);
|
||
|
op->add_result(res);
|
||
|
parse_order_.push_back(op.get());
|
||
|
}
|
||
|
// --this=value
|
||
|
else if (!value.empty())
|
||
|
{
|
||
|
op->add_result(value, result_count);
|
||
|
parse_order_.push_back(op.get());
|
||
|
collected += result_count;
|
||
|
// If exact number expected
|
||
|
if (num > 0)
|
||
|
num = (num >= result_count) ? num - result_count : 0;
|
||
|
|
||
|
// -Trest
|
||
|
}
|
||
|
else if (!rest.empty())
|
||
|
{
|
||
|
op->add_result(rest, result_count);
|
||
|
parse_order_.push_back(op.get());
|
||
|
rest = "";
|
||
|
collected += result_count;
|
||
|
// If exact number expected
|
||
|
if (num > 0)
|
||
|
num = (num >= result_count) ? num - result_count : 0;
|
||
|
}
|
||
|
|
||
|
// Unlimited vector parser
|
||
|
if (num < 0)
|
||
|
{
|
||
|
while (!args.empty() && _recognize(args.back(), false) == detail::Classifier::NONE)
|
||
|
{
|
||
|
if (collected >= -num)
|
||
|
{
|
||
|
// We could break here for allow extras, but we don't
|
||
|
|
||
|
// If any positionals remain, don't keep eating
|
||
|
if (_count_remaining_positionals() > 0)
|
||
|
break;
|
||
|
}
|
||
|
op->add_result(args.back(), result_count);
|
||
|
parse_order_.push_back(op.get());
|
||
|
args.pop_back();
|
||
|
collected += result_count;
|
||
|
}
|
||
|
|
||
|
// Allow -- to end an unlimited list and "eat" it
|
||
|
if (!args.empty() && _recognize(args.back()) == detail::Classifier::POSITIONAL_MARK)
|
||
|
args.pop_back();
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
while (num > 0 && !args.empty())
|
||
|
{
|
||
|
std::string current_ = args.back();
|
||
|
args.pop_back();
|
||
|
op->add_result(current_, result_count);
|
||
|
parse_order_.push_back(op.get());
|
||
|
num -= result_count;
|
||
|
}
|
||
|
|
||
|
if (num > 0)
|
||
|
{
|
||
|
throw ArgumentMismatch::TypedAtLeast(op->get_name(), num, op->get_type_name());
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (!rest.empty())
|
||
|
{
|
||
|
rest = "-" + rest;
|
||
|
args.push_back(rest);
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
/// Trigger the pre_parse callback if needed
|
||
|
void _trigger_pre_parse(size_t remaining_args)
|
||
|
{
|
||
|
if (!pre_parse_called_)
|
||
|
{
|
||
|
pre_parse_called_ = true;
|
||
|
if (pre_parse_callback_)
|
||
|
{
|
||
|
pre_parse_callback_(remaining_args);
|
||
|
}
|
||
|
}
|
||
|
else if (immediate_callback_)
|
||
|
{
|
||
|
if (!name_.empty())
|
||
|
{
|
||
|
auto pcnt = parsed_;
|
||
|
auto extras = std::move(missing_);
|
||
|
clear();
|
||
|
parsed_ = pcnt;
|
||
|
pre_parse_called_ = true;
|
||
|
missing_ = std::move(extras);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/// Get the appropriate parent to fallthrough to which is the first one that has a name or the main app
|
||
|
App* _get_fallthrough_parent()
|
||
|
{
|
||
|
if (parent_ == nullptr)
|
||
|
{
|
||
|
throw(HorribleError("No Valid parent"));
|
||
|
}
|
||
|
auto fallthrough_parent = parent_;
|
||
|
while ((fallthrough_parent->parent_ != nullptr) && (fallthrough_parent->get_name().empty()))
|
||
|
{
|
||
|
fallthrough_parent = fallthrough_parent->parent_;
|
||
|
}
|
||
|
return fallthrough_parent;
|
||
|
}
|
||
|
|
||
|
/// Helper function to place extra values in the most appropriate position
|
||
|
void _move_to_missing(detail::Classifier val_type, const std::string& val)
|
||
|
{
|
||
|
if (allow_extras_ || subcommands_.empty())
|
||
|
{
|
||
|
missing_.emplace_back(val_type, val);
|
||
|
return;
|
||
|
}
|
||
|
// allow extra arguments to be places in an option group if it is allowed there
|
||
|
for (auto& subc : subcommands_)
|
||
|
{
|
||
|
if (subc->name_.empty() && subc->allow_extras_)
|
||
|
{
|
||
|
subc->missing_.emplace_back(val_type, val);
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
// if we haven't found any place to put them yet put them in missing
|
||
|
missing_.emplace_back(val_type, val);
|
||
|
}
|
||
|
|
||
|
public:
|
||
|
/// function that could be used by subclasses of App to shift options around into subcommands
|
||
|
void _move_option(Option* opt, App* app)
|
||
|
{
|
||
|
if (opt == nullptr)
|
||
|
{
|
||
|
throw OptionNotFound("the option is NULL");
|
||
|
}
|
||
|
// verify that the give app is actually a subcommand
|
||
|
bool found = false;
|
||
|
for (auto& subc : subcommands_)
|
||
|
{
|
||
|
if (app == subc.get())
|
||
|
{
|
||
|
found = true;
|
||
|
}
|
||
|
}
|
||
|
if (!found)
|
||
|
{
|
||
|
throw OptionNotFound("The Given app is not a subcommand");
|
||
|
}
|
||
|
|
||
|
if ((help_ptr_ == opt) || (help_all_ptr_ == opt))
|
||
|
throw OptionAlreadyAdded("cannot move help options");
|
||
|
|
||
|
if (config_ptr_ == opt)
|
||
|
throw OptionAlreadyAdded("cannot move config file options");
|
||
|
|
||
|
auto iterator =
|
||
|
std::find_if(std::begin(options_), std::end(options_), [opt](const Option_p& v) { return v.get() == opt; });
|
||
|
if (iterator != std::end(options_))
|
||
|
{
|
||
|
const auto& opt_p = *iterator;
|
||
|
if (std::find_if(std::begin(app->options_), std::end(app->options_), [&opt_p](const Option_p& v) {
|
||
|
return (*v == *opt_p);
|
||
|
}) == std::end(app->options_))
|
||
|
{
|
||
|
// only erase after the insertion was successful
|
||
|
app->options_.push_back(std::move(*iterator));
|
||
|
options_.erase(iterator);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
throw OptionAlreadyAdded(opt->get_name());
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
throw OptionNotFound("could not locate the given App");
|
||
|
}
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/// Extension of App to better manage groups of options
|
||
|
class Option_group : public App
|
||
|
{
|
||
|
public:
|
||
|
Option_group(std::string group_description, std::string group_name, App* parent) :
|
||
|
App(std::move(group_description), "", parent)
|
||
|
{
|
||
|
group(group_name);
|
||
|
// option groups should have automatic fallthrough
|
||
|
}
|
||
|
using App::add_option;
|
||
|
/// Add an existing option to the Option_group
|
||
|
Option* add_option(Option* opt)
|
||
|
{
|
||
|
if (get_parent() == nullptr)
|
||
|
{
|
||
|
throw OptionNotFound("Unable to locate the specified option");
|
||
|
}
|
||
|
get_parent()->_move_option(opt, this);
|
||
|
return opt;
|
||
|
}
|
||
|
/// Add an existing option to the Option_group
|
||
|
void add_options(Option* opt) { add_option(opt); }
|
||
|
/// Add a bunch of options to the group
|
||
|
template<typename... Args>
|
||
|
void add_options(Option* opt, Args... args)
|
||
|
{
|
||
|
add_option(opt);
|
||
|
add_options(args...);
|
||
|
}
|
||
|
using App::add_subcommand;
|
||
|
/// Add an existing subcommand to be a member of an option_group
|
||
|
App* add_subcommand(App* subcom)
|
||
|
{
|
||
|
App_p subc = subcom->get_parent()->get_subcommand_ptr(subcom);
|
||
|
subc->get_parent()->remove_subcommand(subcom);
|
||
|
add_subcommand(std::move(subc));
|
||
|
return subcom;
|
||
|
}
|
||
|
};
|
||
|
/// Helper function to enable one option group/subcommand when another is used
|
||
|
inline void TriggerOn(App* trigger_app, App* app_to_enable)
|
||
|
{
|
||
|
app_to_enable->enabled_by_default(false);
|
||
|
app_to_enable->disabled_by_default();
|
||
|
trigger_app->preparse_callback([app_to_enable](size_t) { app_to_enable->disabled(false); });
|
||
|
}
|
||
|
|
||
|
/// Helper function to enable one option group/subcommand when another is used
|
||
|
inline void TriggerOn(App* trigger_app, std::vector<App*> apps_to_enable)
|
||
|
{
|
||
|
for (auto& app : apps_to_enable)
|
||
|
{
|
||
|
app->enabled_by_default(false);
|
||
|
app->disabled_by_default();
|
||
|
}
|
||
|
|
||
|
trigger_app->preparse_callback([apps_to_enable](size_t) {
|
||
|
for (auto& app : apps_to_enable)
|
||
|
{
|
||
|
app->disabled(false);
|
||
|
}
|
||
|
});
|
||
|
}
|
||
|
|
||
|
/// Helper function to disable one option group/subcommand when another is used
|
||
|
inline void TriggerOff(App* trigger_app, App* app_to_enable)
|
||
|
{
|
||
|
app_to_enable->disabled_by_default(false);
|
||
|
app_to_enable->enabled_by_default();
|
||
|
trigger_app->preparse_callback([app_to_enable](size_t) { app_to_enable->disabled(); });
|
||
|
}
|
||
|
|
||
|
/// Helper function to disable one option group/subcommand when another is used
|
||
|
inline void TriggerOff(App* trigger_app, std::vector<App*> apps_to_enable)
|
||
|
{
|
||
|
for (auto& app : apps_to_enable)
|
||
|
{
|
||
|
app->disabled_by_default(false);
|
||
|
app->enabled_by_default();
|
||
|
}
|
||
|
|
||
|
trigger_app->preparse_callback([apps_to_enable](size_t) {
|
||
|
for (auto& app : apps_to_enable)
|
||
|
{
|
||
|
app->disabled();
|
||
|
}
|
||
|
});
|
||
|
}
|
||
|
|
||
|
namespace FailureMessage
|
||
|
{
|
||
|
/// Printout a clean, simple message on error (the default in CLI11 1.5+)
|
||
|
inline std::string simple(const App* app, const Error& e)
|
||
|
{
|
||
|
std::string header = std::string(e.what()) + "\n";
|
||
|
std::vector<std::string> names;
|
||
|
|
||
|
// Collect names
|
||
|
if (app->get_help_ptr() != nullptr)
|
||
|
names.push_back(app->get_help_ptr()->get_name());
|
||
|
|
||
|
if (app->get_help_all_ptr() != nullptr)
|
||
|
names.push_back(app->get_help_all_ptr()->get_name());
|
||
|
|
||
|
// If any names found, suggest those
|
||
|
if (!names.empty())
|
||
|
header += "Run with " + detail::join(names, " or ") + " for more information.\n";
|
||
|
|
||
|
return header;
|
||
|
}
|
||
|
|
||
|
/// Printout the full help string on error (if this fn is set, the old default for CLI11)
|
||
|
inline std::string help(const App* app, const Error& e)
|
||
|
{
|
||
|
std::string header = std::string("ERROR: ") + e.get_name() + ": " + e.what() + "\n";
|
||
|
header += app->help();
|
||
|
return header;
|
||
|
}
|
||
|
|
||
|
} // namespace FailureMessage
|
||
|
|
||
|
namespace detail
|
||
|
{
|
||
|
/// This class is simply to allow tests access to App's protected functions
|
||
|
struct AppFriend
|
||
|
{
|
||
|
/// Wrap _parse_short, perfectly forward arguments and return
|
||
|
template<typename... Args>
|
||
|
static auto parse_arg(App* app, Args&&... args) ->
|
||
|
typename std::result_of<decltype (&App::_parse_arg)(App, Args...)>::type
|
||
|
{
|
||
|
return app->_parse_arg(std::forward<Args>(args)...);
|
||
|
}
|
||
|
|
||
|
/// Wrap _parse_subcommand, perfectly forward arguments and return
|
||
|
template<typename... Args>
|
||
|
static auto parse_subcommand(App* app, Args&&... args) ->
|
||
|
typename std::result_of<decltype (&App::_parse_subcommand)(App, Args...)>::type
|
||
|
{
|
||
|
return app->_parse_subcommand(std::forward<Args>(args)...);
|
||
|
}
|
||
|
/// Wrap the fallthrough parent function to make sure that is working correctly
|
||
|
static App* get_fallthrough_parent(App* app) { return app->_get_fallthrough_parent(); }
|
||
|
};
|
||
|
} // namespace detail
|
||
|
|
||
|
} // namespace CLI
|
||
|
|
||
|
// From CLI/Config.hpp:
|
||
|
|
||
|
namespace CLI
|
||
|
{
|
||
|
inline std::string
|
||
|
ConfigINI::to_config(const App* app, bool default_also, bool write_description, std::string prefix) const
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
for (const Option* opt : app->get_options({}))
|
||
|
{
|
||
|
// Only process option with a long-name and configurable
|
||
|
if (!opt->get_lnames().empty() && opt->get_configurable())
|
||
|
{
|
||
|
std::string name = prefix + opt->get_lnames()[0];
|
||
|
std::string value;
|
||
|
|
||
|
// Non-flags
|
||
|
if (opt->get_type_size() != 0)
|
||
|
{
|
||
|
// If the option was found on command line
|
||
|
if (opt->count() > 0)
|
||
|
value = detail::ini_join(opt->results());
|
||
|
|
||
|
// If the option has a default and is requested by optional argument
|
||
|
else if (default_also && !opt->get_default_str().empty())
|
||
|
value = opt->get_default_str();
|
||
|
// Flag, one passed
|
||
|
}
|
||
|
else if (opt->count() == 1)
|
||
|
{
|
||
|
value = "true";
|
||
|
|
||
|
// Flag, multiple passed
|
||
|
}
|
||
|
else if (opt->count() > 1)
|
||
|
{
|
||
|
value = std::to_string(opt->count());
|
||
|
|
||
|
// Flag, not present
|
||
|
}
|
||
|
else if (opt->count() == 0 && default_also)
|
||
|
{
|
||
|
value = "false";
|
||
|
}
|
||
|
|
||
|
if (!value.empty())
|
||
|
{
|
||
|
if (write_description && opt->has_description())
|
||
|
{
|
||
|
if (static_cast<int>(out.tellp()) != 0)
|
||
|
{
|
||
|
out << std::endl;
|
||
|
}
|
||
|
out << "; " << detail::fix_newlines("; ", opt->get_description()) << std::endl;
|
||
|
}
|
||
|
|
||
|
// Don't try to quote anything that is not size 1
|
||
|
if (opt->get_items_expected() != 1)
|
||
|
out << name << "=" << value << std::endl;
|
||
|
else
|
||
|
out << name << "=" << detail::add_quotes_if_needed(value) << std::endl;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
for (const App* subcom : app->get_subcommands({}))
|
||
|
out << to_config(subcom, default_also, write_description, prefix + subcom->get_name() + ".");
|
||
|
|
||
|
return out.str();
|
||
|
}
|
||
|
|
||
|
} // namespace CLI
|
||
|
|
||
|
// From CLI/Formatter.hpp:
|
||
|
|
||
|
namespace CLI
|
||
|
{
|
||
|
inline std::string
|
||
|
Formatter::make_group(std::string group, bool is_positional, std::vector<const Option*> opts) const
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
|
||
|
out << "\n"
|
||
|
<< group << ":\n";
|
||
|
for (const Option* opt : opts)
|
||
|
{
|
||
|
out << make_option(opt, is_positional);
|
||
|
}
|
||
|
|
||
|
return out.str();
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_positionals(const App* app) const
|
||
|
{
|
||
|
std::vector<const Option*> opts =
|
||
|
app->get_options([](const Option* opt) { return !opt->get_group().empty() && opt->get_positional(); });
|
||
|
|
||
|
if (opts.empty())
|
||
|
return std::string();
|
||
|
else
|
||
|
return make_group(get_label("Positionals"), true, opts);
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_groups(const App* app, AppFormatMode mode) const
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
std::vector<std::string> groups = app->get_groups();
|
||
|
|
||
|
// Options
|
||
|
for (const std::string& group : groups)
|
||
|
{
|
||
|
std::vector<const Option*> opts = app->get_options([app, mode, &group](const Option* opt) {
|
||
|
return opt->get_group() == group // Must be in the right group
|
||
|
&& opt->nonpositional() // Must not be a positional
|
||
|
&& (mode != AppFormatMode::Sub // If mode is Sub, then
|
||
|
|| (app->get_help_ptr() != opt // Ignore help pointer
|
||
|
&& app->get_help_all_ptr() != opt)); // Ignore help all pointer
|
||
|
});
|
||
|
if (!group.empty() && !opts.empty())
|
||
|
{
|
||
|
out << make_group(group, false, opts);
|
||
|
|
||
|
if (group != groups.back())
|
||
|
out << "\n";
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return out.str();
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_description(const App* app) const
|
||
|
{
|
||
|
std::string desc = app->get_description();
|
||
|
auto min_options = app->get_require_option_min();
|
||
|
auto max_options = app->get_require_option_max();
|
||
|
if (app->get_required())
|
||
|
{
|
||
|
desc += " REQUIRED ";
|
||
|
}
|
||
|
if ((max_options == min_options) && (min_options > 0))
|
||
|
{
|
||
|
if (min_options == 1)
|
||
|
{
|
||
|
desc += " \n[Exactly 1 of the following options is required]";
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
desc += " \n[Exactly " + std::to_string(min_options) + "options from the following list are required]";
|
||
|
}
|
||
|
}
|
||
|
else if (max_options > 0)
|
||
|
{
|
||
|
if (min_options > 0)
|
||
|
{
|
||
|
desc += " \n[Between " + std::to_string(min_options) + " and " + std::to_string(max_options) +
|
||
|
" of the follow options are required]";
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
desc += " \n[At most " + std::to_string(max_options) + " of the following options are allowed]";
|
||
|
}
|
||
|
}
|
||
|
else if (min_options > 0)
|
||
|
{
|
||
|
desc += " \n[At least " + std::to_string(min_options) + " of the following options are required]";
|
||
|
}
|
||
|
return (!desc.empty()) ? desc + "\n" : std::string{};
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_usage(const App* app, std::string name) const
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
|
||
|
out << get_label("Usage") << ":" << (name.empty() ? "" : " ") << name;
|
||
|
|
||
|
std::vector<std::string> groups = app->get_groups();
|
||
|
|
||
|
// Print an Options badge if any options exist
|
||
|
std::vector<const Option*> non_pos_options =
|
||
|
app->get_options([](const Option* opt) { return opt->nonpositional(); });
|
||
|
if (!non_pos_options.empty())
|
||
|
out << " [" << get_label("OPTIONS") << "]";
|
||
|
|
||
|
// Positionals need to be listed here
|
||
|
std::vector<const Option*> positionals = app->get_options([](const Option* opt) { return opt->get_positional(); });
|
||
|
|
||
|
// Print out positionals if any are left
|
||
|
if (!positionals.empty())
|
||
|
{
|
||
|
// Convert to help names
|
||
|
std::vector<std::string> positional_names(positionals.size());
|
||
|
std::transform(positionals.begin(), positionals.end(), positional_names.begin(), [this](const Option* opt) {
|
||
|
return make_option_usage(opt);
|
||
|
});
|
||
|
|
||
|
out << " " << detail::join(positional_names, " ");
|
||
|
}
|
||
|
|
||
|
// Add a marker if subcommands are expected or optional
|
||
|
if (!app->get_subcommands(
|
||
|
[](const CLI::App* subc) { return ((!subc->get_disabled()) && (!subc->get_name().empty())); })
|
||
|
.empty())
|
||
|
{
|
||
|
out << " " << (app->get_require_subcommand_min() == 0 ? "[" : "")
|
||
|
<< get_label(app->get_require_subcommand_max() < 2 || app->get_require_subcommand_min() > 1 ? "SUBCOMMAND" : "SUBCOMMANDS")
|
||
|
<< (app->get_require_subcommand_min() == 0 ? "]" : "");
|
||
|
}
|
||
|
|
||
|
out << std::endl;
|
||
|
|
||
|
return out.str();
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_footer(const App* app) const
|
||
|
{
|
||
|
std::string footer = app->get_footer();
|
||
|
if (!footer.empty())
|
||
|
return footer + "\n";
|
||
|
else
|
||
|
return "";
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_help(const App* app, std::string name, AppFormatMode mode) const
|
||
|
{
|
||
|
// This immediately forwards to the make_expanded method. This is done this way so that subcommands can
|
||
|
// have overridden formatters
|
||
|
if (mode == AppFormatMode::Sub)
|
||
|
return make_expanded(app);
|
||
|
|
||
|
std::stringstream out;
|
||
|
if ((app->get_name().empty()) && (app->get_parent() != nullptr))
|
||
|
{
|
||
|
if (app->get_group() != "Subcommands")
|
||
|
{
|
||
|
out << app->get_group() << ':';
|
||
|
}
|
||
|
}
|
||
|
|
||
|
out << make_description(app);
|
||
|
out << make_usage(app, name);
|
||
|
out << make_positionals(app);
|
||
|
out << make_groups(app, mode);
|
||
|
out << make_subcommands(app, mode);
|
||
|
out << make_footer(app);
|
||
|
|
||
|
return out.str();
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_subcommands(const App* app, AppFormatMode mode) const
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
|
||
|
std::vector<const App*> subcommands = app->get_subcommands({});
|
||
|
|
||
|
// Make a list in definition order of the groups seen
|
||
|
std::vector<std::string> subcmd_groups_seen;
|
||
|
for (const App* com : subcommands)
|
||
|
{
|
||
|
if (com->get_name().empty())
|
||
|
{
|
||
|
out << make_expanded(com);
|
||
|
continue;
|
||
|
}
|
||
|
std::string group_key = com->get_group();
|
||
|
if (!group_key.empty() &&
|
||
|
std::find_if(subcmd_groups_seen.begin(), subcmd_groups_seen.end(), [&group_key](std::string a) {
|
||
|
return detail::to_lower(a) == detail::to_lower(group_key);
|
||
|
}) == subcmd_groups_seen.end())
|
||
|
subcmd_groups_seen.push_back(group_key);
|
||
|
}
|
||
|
|
||
|
// For each group, filter out and print subcommands
|
||
|
for (const std::string& group : subcmd_groups_seen)
|
||
|
{
|
||
|
out << "\n"
|
||
|
<< group << ":\n";
|
||
|
std::vector<const App*> subcommands_group = app->get_subcommands(
|
||
|
[&group](const App* sub_app) { return detail::to_lower(sub_app->get_group()) == detail::to_lower(group); });
|
||
|
for (const App* new_com : subcommands_group)
|
||
|
{
|
||
|
if (new_com->get_name().empty())
|
||
|
continue;
|
||
|
if (mode != AppFormatMode::All)
|
||
|
{
|
||
|
out << make_subcommand(new_com);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
out << new_com->help(new_com->get_name(), AppFormatMode::Sub);
|
||
|
out << "\n";
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return out.str();
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_subcommand(const App* sub) const
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
detail::format_help(out, sub->get_name(), sub->get_description(), column_width_);
|
||
|
return out.str();
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_expanded(const App* sub) const
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
out << sub->get_display_name() << "\n";
|
||
|
|
||
|
out << make_description(sub);
|
||
|
out << make_positionals(sub);
|
||
|
out << make_groups(sub, AppFormatMode::Sub);
|
||
|
out << make_subcommands(sub, AppFormatMode::Sub);
|
||
|
|
||
|
// Drop blank spaces
|
||
|
std::string tmp = detail::find_and_replace(out.str(), "\n\n", "\n");
|
||
|
tmp = tmp.substr(0, tmp.size() - 1); // Remove the final '\n'
|
||
|
|
||
|
// Indent all but the first line (the name)
|
||
|
return detail::find_and_replace(tmp, "\n", "\n ") + "\n";
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_option_name(const Option* opt, bool is_positional) const
|
||
|
{
|
||
|
if (is_positional)
|
||
|
return opt->get_name(true, false);
|
||
|
else
|
||
|
return opt->get_name(false, true);
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_option_opts(const Option* opt) const
|
||
|
{
|
||
|
std::stringstream out;
|
||
|
|
||
|
if (opt->get_type_size() != 0)
|
||
|
{
|
||
|
if (!opt->get_type_name().empty())
|
||
|
out << " " << get_label(opt->get_type_name());
|
||
|
if (!opt->get_default_str().empty())
|
||
|
out << "=" << opt->get_default_str();
|
||
|
if (opt->get_expected() > 1)
|
||
|
out << " x " << opt->get_expected();
|
||
|
if (opt->get_expected() == -1)
|
||
|
out << " ...";
|
||
|
if (opt->get_required())
|
||
|
out << " " << get_label("REQUIRED");
|
||
|
}
|
||
|
if (!opt->get_envname().empty())
|
||
|
out << " (" << get_label("Env") << ":" << opt->get_envname() << ")";
|
||
|
if (!opt->get_needs().empty())
|
||
|
{
|
||
|
out << " " << get_label("Needs") << ":";
|
||
|
for (const Option* op : opt->get_needs())
|
||
|
out << " " << op->get_name();
|
||
|
}
|
||
|
if (!opt->get_excludes().empty())
|
||
|
{
|
||
|
out << " " << get_label("Excludes") << ":";
|
||
|
for (const Option* op : opt->get_excludes())
|
||
|
out << " " << op->get_name();
|
||
|
}
|
||
|
return out.str();
|
||
|
}
|
||
|
|
||
|
inline std::string Formatter::make_option_desc(const Option* opt) const { return opt->get_description(); }
|
||
|
|
||
|
inline std::string Formatter::make_option_usage(const Option* opt) const
|
||
|
{
|
||
|
// Note that these are positionals usages
|
||
|
std::stringstream out;
|
||
|
out << make_option_name(opt, true);
|
||
|
|
||
|
if (opt->get_expected() > 1)
|
||
|
out << "(" << std::to_string(opt->get_expected()) << "x)";
|
||
|
else if (opt->get_expected() < 0)
|
||
|
out << "...";
|
||
|
return opt->get_required() ? out.str() : "[" + out.str() + "]";
|
||
|
}
|
||
|
|
||
|
} // namespace CLI
|