diff options
Diffstat (limited to 'utils/command_line/ListOption.h')
-rw-r--r-- | utils/command_line/ListOption.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/utils/command_line/ListOption.h b/utils/command_line/ListOption.h new file mode 100644 index 0000000000..209a85d968 --- /dev/null +++ b/utils/command_line/ListOption.h @@ -0,0 +1,118 @@ +/* + * Copyright (c) 2017-2018 ARM Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef ARM_COMPUTE_UTILS_LISTOPTION +#define ARM_COMPUTE_UTILS_LISTOPTION + +#include "Option.h" + +#include <initializer_list> +#include <sstream> +#include <stdexcept> +#include <string> +#include <vector> + +namespace arm_compute +{ +namespace utils +{ +/** Implementation of an option that accepts any number of values. */ +template <typename T> +class ListOption : public Option +{ +public: + using Option::Option; + + /** Construct the option with the given default values. + * + * @param[in] name Name of the option. + * @param[in] default_values Default values. + */ + ListOption(std::string name, std::initializer_list<T> &&default_values); + + bool parse(std::string value) override; + std::string help() const override; + + /** Get the list of option values. + * + * @return get the list of option values. + */ + const std::vector<T> &value() const; + +private: + std::vector<T> _values{}; +}; + +template <typename T> +inline ListOption<T>::ListOption(std::string name, std::initializer_list<T> &&default_values) + : Option{ std::move(name), false, true }, _values{ std::forward<std::initializer_list<T>>(default_values) } +{ +} + +template <typename T> +bool ListOption<T>::parse(std::string value) +{ + _is_set = true; + + try + { + std::stringstream stream{ value }; + std::string item; + + while(!std::getline(stream, item, ',').fail()) + { + std::stringstream item_stream(item); + T typed_value{}; + + item_stream >> typed_value; + + if(!item_stream.fail()) + { + _values.emplace_back(typed_value); + } + + _is_set = _is_set && !item_stream.fail(); + } + + return _is_set; + } + catch(const std::invalid_argument &) + { + return false; + } +} + +template <typename T> +inline std::string ListOption<T>::help() const +{ + return "--" + name() + "=VALUE[,VALUE[,...]] - " + _help; +} + +template <typename T> +inline const std::vector<T> &ListOption<T>::value() const +{ + return _values; +} +} // namespace utils +} // namespace arm_compute +#endif /* ARM_COMPUTE_UTILS_LISTOPTION */ |