54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
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#pragma once
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#include "../../macro/class_copy_move.hpp"
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#include "application.hpp"
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#include "validator.hpp"
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#include <map>
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#include <optional>
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#include <string>
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#define NS_YYCC_CLAP_TYPES ::yycc::carton::clap::types
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#define NS_YYCC_CLAP_APPLICATION ::yycc::carton::clap::application
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#define NS_YYCC_CLAP_VALIDATOR ::yycc::carton::clap::validator
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namespace yycc::carton::clap::resolver {
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class Parser {
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public:
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Parser(const NS_YYCC_CLAP_APPLICATION::Application& app);
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~Parser();
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YYCC_DEFAULT_COPY_MOVE(Parser)
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private:
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NS_YYCC_CLAP_TYPES::ClapResult<std::u8string_view> get_raw_value_option(NS_YYCC_CLAP_TYPES::Token token) const;
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public:
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bool has_option(NS_YYCC_CLAP_TYPES::Token token) const;
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NS_YYCC_CLAP_TYPES::ClapResult<bool> get_flag_option(NS_YYCC_CLAP_TYPES::Token token) const;
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template<NS_YYCC_CLAP_VALIDATOR::Validator T>
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NS_YYCC_CLAP_TYPES::ClapResult<NS_YYCC_CLAP_VALIDATOR::ValidatorReturnType<T>> get_value_option(
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NS_YYCC_CLAP_TYPES::Token token) const {
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auto raw_value = this->get_raw_value_option(token);
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if (raw_value.has_value()) {
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T validator{};
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auto value = validator.validate(raw_value.value());
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if (value.has_value()) return value.value();
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else return std::unexpected(NS_YYCC_CLAP_TYPES::ClapError::BadCast);
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} else {
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return std::unexpected(raw_value.error())
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}
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}
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private:
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/**
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* @brief All captured commandline argument.
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* @details Key is the token to already registered option.
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* Value is the associated value for key token.
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* If it is no-value option, the value will be \c std::nullopt.
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*/
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std::map<NS_YYCC_CLAP_TYPES::Token, std::optional<std::u8string>> values;
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};
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} // namespace yycc::carton::clap::resolver
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#undef NS_YYCC_CLAP_TYPES
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