mirror of
https://github.com/CLIUtils/CLI11.git
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0d4e19133c
Fixes #845 as discussed. Comparing the two approaches of getting `argv`: 1. The "old" way, through `CLI::argv()`: ✔️ Works automatically and almost everywhere ❌ Small abstraction overhead on macOS ❌ Does not work in weird edge-cases such as missing `/proc` 2. This PR, through `app.ensure_utf8`: ✔️ True zero-overhead abstraction: you don't pay for what you don't use ✔️ Less moving parts than the "old" approach, probably can't be broken ❌ Requires extra code to be written by the user (which is sad because ideally everyone should use this by default) --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
1446 lines
57 KiB
C++
1446 lines
57 KiB
C++
// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
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// under NSF AWARD 1414736 and by the respective contributors.
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// All rights reserved.
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//
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// SPDX-License-Identifier: BSD-3-Clause
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#pragma once
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// [CLI11:public_includes:set]
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#include <algorithm>
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#include <cstdint>
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#include <functional>
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#include <iostream>
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#include <iterator>
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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 <string>
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#include <utility>
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#include <vector>
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// [CLI11:public_includes:end]
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// CLI Library includes
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#include "ConfigFwd.hpp"
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#include "Error.hpp"
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#include "FormatterFwd.hpp"
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#include "Macros.hpp"
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#include "Option.hpp"
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#include "Split.hpp"
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#include "StringTools.hpp"
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#include "TypeTools.hpp"
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namespace CLI {
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// [CLI11:app_hpp:verbatim]
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#ifndef CLI11_PARSE
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#define CLI11_PARSE(app, ...) \
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try { \
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(app).parse(__VA_ARGS__); \
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} catch(const CLI::ParseError &e) { \
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return (app).exit(e); \
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}
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#endif
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namespace detail {
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enum class Classifier { NONE, POSITIONAL_MARK, SHORT, LONG, WINDOWS_STYLE, SUBCOMMAND, SUBCOMMAND_TERMINATOR };
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struct AppFriend;
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} // namespace detail
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namespace FailureMessage {
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/// Printout a clean, simple message on error (the default in CLI11 1.5+)
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CLI11_INLINE std::string simple(const App *app, const Error &e);
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/// Printout the full help string on error (if this fn is set, the old default for CLI11)
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CLI11_INLINE std::string help(const App *app, const Error &e);
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} // namespace FailureMessage
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/// enumeration of modes of how to deal with extras in config files
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enum class config_extras_mode : char { error = 0, ignore, ignore_all, capture };
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class App;
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using App_p = std::shared_ptr<App>;
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namespace detail {
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/// helper functions for adding in appropriate flag modifiers for add_flag
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template <typename T, enable_if_t<!std::is_integral<T>::value || (sizeof(T) <= 1U), detail::enabler> = detail::dummy>
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Option *default_flag_modifiers(Option *opt) {
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return opt->always_capture_default();
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}
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/// summing modifiers
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template <typename T, enable_if_t<std::is_integral<T>::value && (sizeof(T) > 1U), detail::enabler> = detail::dummy>
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Option *default_flag_modifiers(Option *opt) {
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return opt->multi_option_policy(MultiOptionPolicy::Sum)->default_str("0")->force_callback();
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}
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} // namespace detail
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class Option_group;
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/// Creates a command line program, with very few defaults.
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/** To use, create a new `Program()` instance with `argc`, `argv`, and a help description. The templated
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* add_option methods make it easy to prepare options. Remember to call `.start` before starting your
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* program, so that the options can be evaluated and the help option doesn't accidentally run your program. */
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class App {
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friend Option;
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friend detail::AppFriend;
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protected:
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// This library follows the Google style guide for member names ending in underscores
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/// @name Basics
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///@{
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/// Subcommand name or program name (from parser if name is empty)
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std::string name_{};
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/// Description of the current program/subcommand
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std::string description_{};
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/// If true, allow extra arguments (ie, don't throw an error). INHERITABLE
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bool allow_extras_{false};
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/// If ignore, allow extra arguments in the ini file (ie, don't throw an error). INHERITABLE
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/// if error error on an extra argument, and if capture feed it to the app
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config_extras_mode allow_config_extras_{config_extras_mode::ignore};
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/// If true, return immediately on an unrecognized option (implies allow_extras) INHERITABLE
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bool prefix_command_{false};
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/// If set to true the name was automatically generated from the command line vs a user set name
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bool has_automatic_name_{false};
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/// If set to true the subcommand is required to be processed and used, ignored for main app
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bool required_{false};
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/// If set to true the subcommand is disabled and cannot be used, ignored for main app
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bool disabled_{false};
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/// Flag indicating that the pre_parse_callback has been triggered
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bool pre_parse_called_{false};
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/// Flag indicating that the callback for the subcommand should be executed immediately on parse completion which is
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/// before help or ini files are processed. INHERITABLE
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bool immediate_callback_{false};
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/// This is a function that runs prior to the start of parsing
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std::function<void(std::size_t)> pre_parse_callback_{};
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/// This is a function that runs when parsing has finished.
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std::function<void()> parse_complete_callback_{};
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/// This is a function that runs when all processing has completed
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std::function<void()> final_callback_{};
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///@}
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/// @name Options
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///@{
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/// The default values for options, customizable and changeable INHERITABLE
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OptionDefaults option_defaults_{};
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/// The list of options, stored locally
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std::vector<Option_p> options_{};
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///@}
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/// @name Help
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///@{
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/// Usage to put after program/subcommand description in the help output INHERITABLE
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std::string usage_{};
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/// This is a function that generates a usage to put after program/subcommand description in help output
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std::function<std::string()> usage_callback_{};
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/// Footer to put after all options in the help output INHERITABLE
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std::string footer_{};
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/// This is a function that generates a footer to put after all other options in help output
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std::function<std::string()> footer_callback_{};
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/// A pointer to the help flag if there is one INHERITABLE
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Option *help_ptr_{nullptr};
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/// A pointer to the help all flag if there is one INHERITABLE
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Option *help_all_ptr_{nullptr};
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/// A pointer to a version flag if there is one
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Option *version_ptr_{nullptr};
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/// This is the formatter for help printing. Default provided. INHERITABLE (same pointer)
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std::shared_ptr<FormatterBase> formatter_{new Formatter()};
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/// The error message printing function INHERITABLE
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std::function<std::string(const App *, const Error &e)> failure_message_{FailureMessage::simple};
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///@}
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/// @name Parsing
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///@{
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using missing_t = std::vector<std::pair<detail::Classifier, std::string>>;
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/// Pair of classifier, string for missing options. (extra detail is removed on returning from parse)
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///
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/// This is faster and cleaner than storing just a list of strings and reparsing. This may contain the -- separator.
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missing_t missing_{};
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/// This is a list of pointers to options with the original parse order
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std::vector<Option *> parse_order_{};
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/// This is a list of the subcommands collected, in order
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std::vector<App *> parsed_subcommands_{};
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/// this is a list of subcommands that are exclusionary to this one
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std::set<App *> exclude_subcommands_{};
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/// This is a list of options which are exclusionary to this App, if the options were used this subcommand should
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/// not be
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std::set<Option *> exclude_options_{};
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/// this is a list of subcommands or option groups that are required by this one, the list is not mutual, the
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/// listed subcommands do not require this one
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std::set<App *> need_subcommands_{};
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/// This is a list of options which are required by this app, the list is not mutual, listed options do not need the
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/// subcommand not be
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std::set<Option *> need_options_{};
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///@}
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/// @name Subcommands
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///@{
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/// Storage for subcommand list
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std::vector<App_p> subcommands_{};
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/// If true, the program name is not case sensitive INHERITABLE
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bool ignore_case_{false};
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/// If true, the program should ignore underscores INHERITABLE
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bool ignore_underscore_{false};
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/// Allow subcommand fallthrough, so that parent commands can collect commands after subcommand. INHERITABLE
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bool fallthrough_{false};
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/// Allow '/' for options for Windows like options. Defaults to true on Windows, false otherwise. INHERITABLE
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bool allow_windows_style_options_{
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#ifdef _WIN32
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true
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#else
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false
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#endif
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};
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/// specify that positional arguments come at the end of the argument sequence not inheritable
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bool positionals_at_end_{false};
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enum class startup_mode : char { stable, enabled, disabled };
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/// specify the startup mode for the app
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/// stable=no change, enabled= startup enabled, disabled=startup disabled
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startup_mode default_startup{startup_mode::stable};
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/// if set to true the subcommand can be triggered via configuration files INHERITABLE
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bool configurable_{false};
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/// If set to true positional options are validated before assigning INHERITABLE
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bool validate_positionals_{false};
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/// If set to true optional vector arguments are validated before assigning INHERITABLE
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bool validate_optional_arguments_{false};
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/// indicator that the subcommand is silent and won't show up in subcommands list
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/// This is potentially useful as a modifier subcommand
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bool silent_{false};
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/// Counts the number of times this command/subcommand was parsed
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std::uint32_t parsed_{0U};
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/// Minimum required subcommands (not inheritable!)
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std::size_t require_subcommand_min_{0};
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/// Max number of subcommands allowed (parsing stops after this number). 0 is unlimited INHERITABLE
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std::size_t require_subcommand_max_{0};
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/// Minimum required options (not inheritable!)
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std::size_t require_option_min_{0};
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/// Max number of options allowed. 0 is unlimited (not inheritable)
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std::size_t require_option_max_{0};
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/// A pointer to the parent if this is a subcommand
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App *parent_{nullptr};
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/// The group membership INHERITABLE
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std::string group_{"Subcommands"};
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/// Alias names for the subcommand
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std::vector<std::string> aliases_{};
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///@}
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/// @name Config
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///@{
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/// Pointer to the config option
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Option *config_ptr_{nullptr};
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/// This is the formatter for help printing. Default provided. INHERITABLE (same pointer)
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std::shared_ptr<Config> config_formatter_{new ConfigTOML()};
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///@}
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#ifdef _WIN32
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/// When normalizing argv to UTF-8 on Windows, this is the storage for normalized args.
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std::vector<std::string> normalized_argv_{};
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/// When normalizing argv to UTF-8 on Windows, this is the `char**` value returned to the user.
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std::vector<char *> normalized_argv_view_{};
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#endif
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/// Special private constructor for subcommand
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App(std::string app_description, std::string app_name, App *parent);
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public:
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/// @name Basic
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///@{
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/// Create a new program. Pass in the same arguments as main(), along with a help string.
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explicit App(std::string app_description = "", std::string app_name = "")
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: App(app_description, app_name, nullptr) {
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set_help_flag("-h,--help", "Print this help message and exit");
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}
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App(const App &) = delete;
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App &operator=(const App &) = delete;
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/// virtual destructor
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virtual ~App() = default;
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/// Convert the contents of argv to UTF-8. Only does something on Windows, does nothing elsewhere.
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CLI11_NODISCARD char **ensure_utf8(char **argv);
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/// Set a callback for execution when all parsing and processing has completed
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///
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/// Due to a bug in c++11,
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/// it is not possible to overload on std::function (fixed in c++14
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/// and backported to c++11 on newer compilers). Use capture by reference
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/// to get a pointer to App if needed.
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App *callback(std::function<void()> app_callback) {
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if(immediate_callback_) {
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parse_complete_callback_ = std::move(app_callback);
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} else {
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final_callback_ = std::move(app_callback);
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}
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return this;
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}
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/// Set a callback for execution when all parsing and processing has completed
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/// aliased as callback
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App *final_callback(std::function<void()> app_callback) {
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final_callback_ = std::move(app_callback);
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return this;
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}
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/// Set a callback to execute when parsing has completed for the app
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///
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App *parse_complete_callback(std::function<void()> pc_callback) {
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parse_complete_callback_ = std::move(pc_callback);
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return this;
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}
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/// Set a callback to execute prior to parsing.
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///
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App *preparse_callback(std::function<void(std::size_t)> pp_callback) {
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pre_parse_callback_ = std::move(pp_callback);
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return this;
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}
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/// Set a name for the app (empty will use parser to set the name)
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App *name(std::string app_name = "");
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/// Set an alias for the app
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App *alias(std::string app_name);
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/// Remove the error when extras are left over on the command line.
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App *allow_extras(bool allow = true) {
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allow_extras_ = allow;
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return this;
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}
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/// Remove the error when extras are left over on the command line.
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App *required(bool require = true) {
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required_ = require;
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return this;
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}
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/// Disable the subcommand or option group
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App *disabled(bool disable = true) {
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disabled_ = disable;
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return this;
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}
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/// silence the subcommand from showing up in the processed list
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App *silent(bool silence = true) {
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silent_ = silence;
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return this;
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}
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/// Set the subcommand to be disabled by default, so on clear(), at the start of each parse it is disabled
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App *disabled_by_default(bool disable = true) {
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if(disable) {
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default_startup = startup_mode::disabled;
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} else {
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default_startup = (default_startup == startup_mode::enabled) ? startup_mode::enabled : startup_mode::stable;
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}
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return this;
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}
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/// Set the subcommand to be enabled by default, so on clear(), at the start of each parse it is enabled (not
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/// disabled)
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App *enabled_by_default(bool enable = true) {
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if(enable) {
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default_startup = startup_mode::enabled;
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} else {
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default_startup =
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(default_startup == startup_mode::disabled) ? startup_mode::disabled : startup_mode::stable;
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}
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return this;
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}
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/// Set the subcommand callback to be executed immediately on subcommand completion
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App *immediate_callback(bool immediate = true);
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/// Set the subcommand to validate positional arguments before assigning
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App *validate_positionals(bool validate = true) {
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validate_positionals_ = validate;
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return this;
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}
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/// Set the subcommand to validate optional vector arguments before assigning
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App *validate_optional_arguments(bool validate = true) {
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validate_optional_arguments_ = validate;
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return this;
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}
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/// ignore extras in config files
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App *allow_config_extras(bool allow = true) {
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if(allow) {
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allow_config_extras_ = config_extras_mode::capture;
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allow_extras_ = true;
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} else {
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allow_config_extras_ = config_extras_mode::error;
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}
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return this;
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}
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/// ignore extras in config files
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App *allow_config_extras(config_extras_mode mode) {
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allow_config_extras_ = mode;
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return this;
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}
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/// Do not parse anything after the first unrecognized option and return
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App *prefix_command(bool allow = true) {
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prefix_command_ = allow;
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return this;
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}
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/// Ignore case. Subcommands inherit value.
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App *ignore_case(bool value = true);
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/// Allow windows style options, such as `/opt`. First matching short or long name used. Subcommands inherit
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/// value.
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App *allow_windows_style_options(bool value = true) {
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allow_windows_style_options_ = value;
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return this;
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}
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/// Specify that the positional arguments are only at the end of the sequence
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App *positionals_at_end(bool value = true) {
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positionals_at_end_ = value;
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return this;
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}
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/// Specify that the subcommand can be triggered by a config file
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App *configurable(bool value = true) {
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configurable_ = value;
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return this;
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}
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/// Ignore underscore. Subcommands inherit value.
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App *ignore_underscore(bool value = true);
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/// Set the help formatter
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App *formatter(std::shared_ptr<FormatterBase> fmt) {
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formatter_ = fmt;
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return this;
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}
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/// Set the help formatter
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App *formatter_fn(std::function<std::string(const App *, std::string, AppFormatMode)> fmt) {
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formatter_ = std::make_shared<FormatterLambda>(fmt);
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return this;
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}
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/// Set the config formatter
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App *config_formatter(std::shared_ptr<Config> fmt) {
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config_formatter_ = fmt;
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return this;
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}
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/// Check to see if this subcommand was parsed, true only if received on command line.
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CLI11_NODISCARD bool parsed() const { return parsed_ > 0; }
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/// Get the OptionDefault object, to set option defaults
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OptionDefaults *option_defaults() { return &option_defaults_; }
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///@}
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/// @name Adding options
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///@{
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/// Add an option, will automatically understand the type for common types.
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///
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/// To use, create a variable with the expected type, and pass it in after the name.
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/// After start is called, you can use count to see if the value was passed, and
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/// the value will be initialized properly. Numbers, vectors, and strings are supported.
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///
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/// ->required(), ->default, and the validators are options,
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/// The positional options take an optional number of arguments.
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///
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/// For example,
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///
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/// std::string filename;
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/// program.add_option("filename", filename, "description of filename");
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///
|
|
Option *add_option(std::string option_name,
|
|
callback_t option_callback,
|
|
std::string option_description = "",
|
|
bool defaulted = false,
|
|
std::function<std::string()> func = {});
|
|
|
|
/// Add option for assigning to a variable
|
|
template <typename AssignTo,
|
|
typename ConvertTo = AssignTo,
|
|
enable_if_t<!std::is_const<ConvertTo>::value, detail::enabler> = detail::dummy>
|
|
Option *add_option(std::string option_name,
|
|
AssignTo &variable, ///< The variable to set
|
|
std::string option_description = "") {
|
|
|
|
auto fun = [&variable](const CLI::results_t &res) { // comment for spacing
|
|
return detail::lexical_conversion<AssignTo, ConvertTo>(res, variable);
|
|
};
|
|
|
|
Option *opt = add_option(option_name, fun, option_description, false, [&variable]() {
|
|
return CLI::detail::checked_to_string<AssignTo, ConvertTo>(variable);
|
|
});
|
|
opt->type_name(detail::type_name<ConvertTo>());
|
|
// these must be actual lvalues since (std::max) sometimes is defined in terms of references and references
|
|
// to structs used in the evaluation can be temporary so that would cause issues.
|
|
auto Tcount = detail::type_count<AssignTo>::value;
|
|
auto XCcount = detail::type_count<ConvertTo>::value;
|
|
opt->type_size(detail::type_count_min<ConvertTo>::value, (std::max)(Tcount, XCcount));
|
|
opt->expected(detail::expected_count<ConvertTo>::value);
|
|
opt->run_callback_for_default();
|
|
return opt;
|
|
}
|
|
|
|
/// Add option for assigning to a variable
|
|
template <typename AssignTo, enable_if_t<!std::is_const<AssignTo>::value, detail::enabler> = detail::dummy>
|
|
Option *add_option_no_stream(std::string option_name,
|
|
AssignTo &variable, ///< The variable to set
|
|
std::string option_description = "") {
|
|
|
|
auto fun = [&variable](const CLI::results_t &res) { // comment for spacing
|
|
return detail::lexical_conversion<AssignTo, AssignTo>(res, variable);
|
|
};
|
|
|
|
Option *opt = add_option(option_name, fun, option_description, false, []() { return std::string{}; });
|
|
opt->type_name(detail::type_name<AssignTo>());
|
|
opt->type_size(detail::type_count_min<AssignTo>::value, detail::type_count<AssignTo>::value);
|
|
opt->expected(detail::expected_count<AssignTo>::value);
|
|
opt->run_callback_for_default();
|
|
return opt;
|
|
}
|
|
|
|
/// Add option for a callback of a specific type
|
|
template <typename ArgType>
|
|
Option *add_option_function(std::string option_name,
|
|
const std::function<void(const ArgType &)> &func, ///< the callback to execute
|
|
std::string option_description = "") {
|
|
|
|
auto fun = [func](const CLI::results_t &res) {
|
|
ArgType variable;
|
|
bool result = detail::lexical_conversion<ArgType, ArgType>(res, 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<ArgType>());
|
|
opt->type_size(detail::type_count_min<ArgType>::value, detail::type_count<ArgType>::value);
|
|
opt->expected(detail::expected_count<ArgType>::value);
|
|
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);
|
|
}
|
|
|
|
/// Set a help flag, replace the existing one if present
|
|
Option *set_help_flag(std::string flag_name = "", const std::string &help_description = "");
|
|
|
|
/// 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 = "");
|
|
|
|
/// Set a version flag and version display string, replace the existing one if present
|
|
Option *set_version_flag(std::string flag_name = "",
|
|
const std::string &versionString = "",
|
|
const std::string &version_help = "Display program version information and exit");
|
|
|
|
/// Generate the version string through a callback function
|
|
Option *set_version_flag(std::string flag_name,
|
|
std::function<std::string()> vfunc,
|
|
const std::string &version_help = "Display program version information and exit");
|
|
|
|
private:
|
|
/// Internal function for adding a flag
|
|
Option *_add_flag_internal(std::string flag_name, CLI::callback_t fun, std::string flag_description);
|
|
|
|
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);
|
|
}
|
|
|
|
/// 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<!detail::is_mutable_container<T>::value && !std::is_const<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 the flag result
|
|
std::string flag_description = "") {
|
|
|
|
CLI::callback_t fun = [&flag_result](const CLI::results_t &res) {
|
|
using CLI::detail::lexical_cast;
|
|
return lexical_cast(res[0], flag_result);
|
|
};
|
|
auto *opt = _add_flag_internal(flag_name, std::move(fun), std::move(flag_description));
|
|
return detail::default_flag_modifiers<T>(opt);
|
|
}
|
|
|
|
/// Vector version to capture multiple flags.
|
|
template <typename T,
|
|
enable_if_t<!std::is_assignable<std::function<void(std::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](const CLI::results_t &res) {
|
|
bool retval = true;
|
|
for(const auto &elem : res) {
|
|
using CLI::detail::lexical_cast;
|
|
flag_results.emplace_back();
|
|
retval &= lexical_cast(elem, flag_results.back());
|
|
}
|
|
return retval;
|
|
};
|
|
return _add_flag_internal(flag_name, std::move(fun), std::move(flag_description))
|
|
->multi_option_policy(MultiOptionPolicy::TakeAll)
|
|
->run_callback_for_default();
|
|
}
|
|
|
|
/// 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 = "");
|
|
|
|
/// Add option for callback with an integer value
|
|
Option *add_flag_function(std::string flag_name,
|
|
std::function<void(std::int64_t)> function, ///< A function to call, void(int)
|
|
std::string flag_description = "");
|
|
|
|
#ifdef CLI11_CPP14
|
|
/// Add option for callback (C++14 or better only)
|
|
Option *add_flag(std::string flag_name,
|
|
std::function<void(std::int64_t)> function, ///< A function to call, void(std::int64_t)
|
|
std::string flag_description = "") {
|
|
return add_flag_function(std::move(flag_name), std::move(function), std::move(flag_description));
|
|
}
|
|
#endif
|
|
|
|
/// Set a configuration ini file option, or clear it if no name passed
|
|
Option *set_config(std::string option_name = "",
|
|
std::string default_filename = "",
|
|
const std::string &help_message = "Read an ini file",
|
|
bool config_required = false);
|
|
|
|
/// Removes an option from the App. Takes an option pointer. Returns true if found and removed.
|
|
bool remove_option(Option *opt);
|
|
|
|
/// 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 = "") {
|
|
if(!detail::valid_alias_name_string(group_name)) {
|
|
throw IncorrectConstruction("option group names may not contain newlines or null characters");
|
|
}
|
|
auto option_group = std::make_shared<T>(std::move(group_description), group_name, this);
|
|
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 Subcommands
|
|
///@{
|
|
|
|
/// Add a subcommand. Inherits INHERITABLE and OptionDefaults, and help flag
|
|
App *add_subcommand(std::string subcommand_name = "", std::string subcommand_description = "");
|
|
|
|
/// Add a previously created app as a subcommand
|
|
App *add_subcommand(CLI::App_p subcom);
|
|
|
|
/// Removes a subcommand from the App. Takes a subcommand pointer. Returns true if found and removed.
|
|
bool remove_subcommand(App *subcom);
|
|
|
|
/// 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(const App *subcom) const;
|
|
|
|
/// Check to see if a subcommand is part of this command (text version)
|
|
CLI11_NODISCARD App *get_subcommand(std::string subcom) const;
|
|
|
|
/// Get a pointer to subcommand by index
|
|
CLI11_NODISCARD App *get_subcommand(int index = 0) const;
|
|
|
|
/// 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;
|
|
|
|
/// Check to see if a subcommand is part of this command (text version)
|
|
CLI11_NODISCARD CLI::App_p get_subcommand_ptr(std::string subcom) const;
|
|
|
|
/// Get an owning pointer to subcommand by index
|
|
CLI11_NODISCARD CLI::App_p get_subcommand_ptr(int index = 0) const;
|
|
|
|
/// Check to see if an option group is part of this App
|
|
CLI11_NODISCARD App *get_option_group(std::string group_name) const;
|
|
|
|
/// 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
|
|
CLI11_NODISCARD std::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.
|
|
CLI11_NODISCARD std::size_t count_all() const;
|
|
|
|
/// 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<std::size_t>(-value);
|
|
} else {
|
|
require_subcommand_min_ = static_cast<std::size_t>(value);
|
|
require_subcommand_max_ = static_cast<std::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(std::size_t min, std::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<std::size_t>(-value);
|
|
} else {
|
|
require_option_min_ = static_cast<std::size_t>(value);
|
|
require_option_max_ = static_cast<std::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(std::size_t min, std::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.
|
|
explicit 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();
|
|
|
|
/// Parse the command-line arguments passed to the main function of the executable.
|
|
/// This overload will correctly parse unicode arguments on Windows.
|
|
void parse();
|
|
|
|
/// 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);
|
|
void parse(int argc, const wchar_t *const *argv);
|
|
|
|
private:
|
|
template <class CharT> void parse_char_t(int argc, const CharT *const *argv);
|
|
|
|
public:
|
|
/// 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);
|
|
void parse(std::wstring commandline, bool program_name_included = false);
|
|
|
|
/// The real work is done here. Expects a reversed vector.
|
|
/// Changes the vector to the remaining options.
|
|
void parse(std::vector<std::string> &args);
|
|
|
|
/// The real work is done here. Expects a reversed vector.
|
|
void parse(std::vector<std::string> &&args);
|
|
|
|
void parse_from_stream(std::istream &input);
|
|
|
|
/// 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;
|
|
|
|
///@}
|
|
/// @name Post parsing
|
|
///@{
|
|
|
|
/// Counts the number of times the given option was passed.
|
|
CLI11_NODISCARD std::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.)
|
|
CLI11_NODISCARD 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;
|
|
|
|
/// 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);
|
|
|
|
/// Check to see if given subcommand was selected
|
|
bool got_subcommand(const 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
|
|
CLI11_NODISCARD 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 == nullptr) {
|
|
throw OptionNotFound("nullptr passed");
|
|
}
|
|
if(app == this) {
|
|
throw OptionNotFound("cannot self reference in needs");
|
|
}
|
|
auto res = exclude_subcommands_.insert(app);
|
|
// subcommand exclusion should be symmetric
|
|
if(res.second) {
|
|
app->exclude_subcommands_.insert(this);
|
|
}
|
|
return this;
|
|
}
|
|
|
|
App *needs(Option *opt) {
|
|
if(opt == nullptr) {
|
|
throw OptionNotFound("nullptr passed");
|
|
}
|
|
need_options_.insert(opt);
|
|
return this;
|
|
}
|
|
|
|
App *needs(App *app) {
|
|
if(app == nullptr) {
|
|
throw OptionNotFound("nullptr passed");
|
|
}
|
|
if(app == this) {
|
|
throw OptionNotFound("cannot self reference in needs");
|
|
}
|
|
need_subcommands_.insert(app);
|
|
return this;
|
|
}
|
|
|
|
/// Removes an option from the excludes list of this subcommand
|
|
bool remove_excludes(Option *opt);
|
|
|
|
/// Removes a subcommand from the excludes list of this subcommand
|
|
bool remove_excludes(App *app);
|
|
|
|
/// Removes an option from the needs list of this subcommand
|
|
bool remove_needs(Option *opt);
|
|
|
|
/// Removes a subcommand from the needs list of this subcommand
|
|
bool remove_needs(App *app);
|
|
///@}
|
|
/// @name Help
|
|
///@{
|
|
|
|
/// Set usage.
|
|
App *usage(std::string usage_string) {
|
|
usage_ = std::move(usage_string);
|
|
return this;
|
|
}
|
|
/// Set usage.
|
|
App *usage(std::function<std::string()> usage_function) {
|
|
usage_callback_ = std::move(usage_function);
|
|
return this;
|
|
}
|
|
/// Set footer.
|
|
App *footer(std::string footer_string) {
|
|
footer_ = std::move(footer_string);
|
|
return this;
|
|
}
|
|
/// Set footer.
|
|
App *footer(std::function<std::string()> footer_function) {
|
|
footer_callback_ = std::move(footer_function);
|
|
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. write_descriptions will print a description for the App and for each option.
|
|
CLI11_NODISCARD 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
|
|
CLI11_NODISCARD std::string help(std::string prev = "", AppFormatMode mode = AppFormatMode::Normal) const;
|
|
|
|
/// Displays a version string
|
|
CLI11_NODISCARD std::string version() const;
|
|
///@}
|
|
/// @name Getters
|
|
///@{
|
|
|
|
/// Access the formatter
|
|
CLI11_NODISCARD std::shared_ptr<FormatterBase> get_formatter() const { return formatter_; }
|
|
|
|
/// Access the config formatter
|
|
CLI11_NODISCARD std::shared_ptr<Config> get_config_formatter() const { return config_formatter_; }
|
|
|
|
/// Access the config formatter as a configBase pointer
|
|
CLI11_NODISCARD std::shared_ptr<ConfigBase> get_config_formatter_base() const {
|
|
// This is safer as a dynamic_cast if we have RTTI, as Config -> ConfigBase
|
|
#if CLI11_USE_STATIC_RTTI == 0
|
|
return std::dynamic_pointer_cast<ConfigBase>(config_formatter_);
|
|
#else
|
|
return std::static_pointer_cast<ConfigBase>(config_formatter_);
|
|
#endif
|
|
}
|
|
|
|
/// Get the app or subcommand description
|
|
CLI11_NODISCARD 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;
|
|
|
|
/// Non-const version of the above
|
|
std::vector<Option *> get_options(const std::function<bool(Option *)> filter = {});
|
|
|
|
/// Get an option by name (noexcept non-const version)
|
|
Option *get_option_no_throw(std::string option_name) noexcept;
|
|
|
|
/// Get an option by name (noexcept const version)
|
|
CLI11_NODISCARD const Option *get_option_no_throw(std::string option_name) const noexcept;
|
|
|
|
/// Get an option by name
|
|
CLI11_NODISCARD const Option *get_option(std::string option_name) const {
|
|
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
|
|
CLI11_NODISCARD bool get_ignore_case() const { return ignore_case_; }
|
|
|
|
/// Check the status of ignore_underscore
|
|
CLI11_NODISCARD bool get_ignore_underscore() const { return ignore_underscore_; }
|
|
|
|
/// Check the status of fallthrough
|
|
CLI11_NODISCARD bool get_fallthrough() const { return fallthrough_; }
|
|
|
|
/// Check the status of the allow windows style options
|
|
CLI11_NODISCARD bool get_allow_windows_style_options() const { return allow_windows_style_options_; }
|
|
|
|
/// Check the status of the allow windows style options
|
|
CLI11_NODISCARD bool get_positionals_at_end() const { return positionals_at_end_; }
|
|
|
|
/// Check the status of the allow windows style options
|
|
CLI11_NODISCARD bool get_configurable() const { return configurable_; }
|
|
|
|
/// Get the group of this subcommand
|
|
CLI11_NODISCARD const std::string &get_group() const { return group_; }
|
|
|
|
/// Generate and return the usage.
|
|
CLI11_NODISCARD std::string get_usage() const {
|
|
return (usage_callback_) ? usage_callback_() + '\n' + usage_ : usage_;
|
|
}
|
|
|
|
/// Generate and return the footer.
|
|
CLI11_NODISCARD std::string get_footer() const {
|
|
return (footer_callback_) ? footer_callback_() + '\n' + footer_ : footer_;
|
|
}
|
|
|
|
/// Get the required min subcommand value
|
|
CLI11_NODISCARD std::size_t get_require_subcommand_min() const { return require_subcommand_min_; }
|
|
|
|
/// Get the required max subcommand value
|
|
CLI11_NODISCARD std::size_t get_require_subcommand_max() const { return require_subcommand_max_; }
|
|
|
|
/// Get the required min option value
|
|
CLI11_NODISCARD std::size_t get_require_option_min() const { return require_option_min_; }
|
|
|
|
/// Get the required max option value
|
|
CLI11_NODISCARD std::size_t get_require_option_max() const { return require_option_max_; }
|
|
|
|
/// Get the prefix command status
|
|
CLI11_NODISCARD bool get_prefix_command() const { return prefix_command_; }
|
|
|
|
/// Get the status of allow extras
|
|
CLI11_NODISCARD bool get_allow_extras() const { return allow_extras_; }
|
|
|
|
/// Get the status of required
|
|
CLI11_NODISCARD bool get_required() const { return required_; }
|
|
|
|
/// Get the status of disabled
|
|
CLI11_NODISCARD bool get_disabled() const { return disabled_; }
|
|
|
|
/// Get the status of silence
|
|
CLI11_NODISCARD bool get_silent() const { return silent_; }
|
|
|
|
/// Get the status of disabled
|
|
CLI11_NODISCARD bool get_immediate_callback() const { return immediate_callback_; }
|
|
|
|
/// Get the status of disabled by default
|
|
CLI11_NODISCARD bool get_disabled_by_default() const { return (default_startup == startup_mode::disabled); }
|
|
|
|
/// Get the status of disabled by default
|
|
CLI11_NODISCARD bool get_enabled_by_default() const { return (default_startup == startup_mode::enabled); }
|
|
/// Get the status of validating positionals
|
|
CLI11_NODISCARD bool get_validate_positionals() const { return validate_positionals_; }
|
|
/// Get the status of validating optional vector arguments
|
|
CLI11_NODISCARD bool get_validate_optional_arguments() const { return validate_optional_arguments_; }
|
|
|
|
/// Get the status of allow extras
|
|
CLI11_NODISCARD config_extras_mode 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)
|
|
CLI11_NODISCARD const Option *get_help_ptr() const { return help_ptr_; }
|
|
|
|
/// Get a pointer to the help all flag. (const)
|
|
CLI11_NODISCARD 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)
|
|
CLI11_NODISCARD const Option *get_config_ptr() const { return config_ptr_; }
|
|
|
|
/// Get a pointer to the version option.
|
|
Option *get_version_ptr() { return version_ptr_; }
|
|
|
|
/// Get a pointer to the version option. (const)
|
|
CLI11_NODISCARD const Option *get_version_ptr() const { return version_ptr_; }
|
|
|
|
/// Get the parent of this subcommand (or nullptr if main app)
|
|
App *get_parent() { return parent_; }
|
|
|
|
/// Get the parent of this subcommand (or nullptr if main app) (const version)
|
|
CLI11_NODISCARD const App *get_parent() const { return parent_; }
|
|
|
|
/// Get the name of the current app
|
|
CLI11_NODISCARD const std::string &get_name() const { return name_; }
|
|
|
|
/// Get the aliases of the current app
|
|
CLI11_NODISCARD const std::vector<std::string> &get_aliases() const { return aliases_; }
|
|
|
|
/// clear all the aliases of the current App
|
|
App *clear_aliases() {
|
|
aliases_.clear();
|
|
return this;
|
|
}
|
|
|
|
/// Get a display name for an app
|
|
CLI11_NODISCARD std::string get_display_name(bool with_aliases = false) const;
|
|
|
|
/// Check the name, case insensitive and underscore insensitive if set
|
|
CLI11_NODISCARD bool check_name(std::string name_to_check) const;
|
|
|
|
/// Get the groups available directly from this option (in order)
|
|
CLI11_NODISCARD std::vector<std::string> get_groups() const;
|
|
|
|
/// This gets a vector of pointers with the original parse order
|
|
CLI11_NODISCARD const std::vector<Option *> &parse_order() const { return parse_order_; }
|
|
|
|
/// This returns the missing options from the current subcommand
|
|
CLI11_NODISCARD std::vector<std::string> remaining(bool recurse = false) const;
|
|
|
|
/// This returns the missing options in a form ready for processing by another command line program
|
|
CLI11_NODISCARD std::vector<std::string> remaining_for_passthrough(bool recurse = false) const;
|
|
|
|
/// This returns the number of remaining options, minus the -- separator
|
|
CLI11_NODISCARD std::size_t remaining_size(bool recurse = false) const;
|
|
|
|
///@}
|
|
|
|
protected:
|
|
/// Check the options to make sure there are no conflicts.
|
|
///
|
|
/// Currently checks to see if multiple positionals exist with unlimited args and checks if the min and max options
|
|
/// are feasible
|
|
void _validate() const;
|
|
|
|
/// 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();
|
|
|
|
/// Internal function to run (App) callback, bottom up
|
|
void run_callback(bool final_mode = false, bool suppress_final_callback = false);
|
|
|
|
/// Check to see if a subcommand is valid. Give up immediately if subcommand max has been reached.
|
|
CLI11_NODISCARD bool _valid_subcommand(const std::string ¤t, bool ignore_used = true) const;
|
|
|
|
/// Selects a Classifier enum based on the type of the current argument
|
|
CLI11_NODISCARD detail::Classifier _recognize(const std::string ¤t,
|
|
bool ignore_used_subcommands = true) const;
|
|
|
|
// The parse function is now broken into several parts, and part of process
|
|
|
|
/// Read and process a configuration file (main app only)
|
|
void _process_config_file();
|
|
|
|
/// Read and process a particular configuration file
|
|
void _process_config_file(const std::string &config_file, bool throw_error);
|
|
|
|
/// Get envname options if not yet passed. Runs on *all* subcommands.
|
|
void _process_env();
|
|
|
|
/// Process callbacks. Runs on *all* subcommands.
|
|
void _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;
|
|
|
|
/// Verify required options and cross requirements. Subcommands too (only if selected).
|
|
void _process_requirements();
|
|
|
|
/// Process callbacks and such.
|
|
void _process();
|
|
|
|
/// Throw an error if anything is left over and should not be.
|
|
void _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);
|
|
|
|
/// Internal function to recursively increment the parsed counter on the current app as well unnamed subcommands
|
|
void increment_parsed();
|
|
|
|
/// Internal parse function
|
|
void _parse(std::vector<std::string> &args);
|
|
|
|
/// Internal parse function
|
|
void _parse(std::vector<std::string> &&args);
|
|
|
|
/// Internal function to parse a stream
|
|
void _parse_stream(std::istream &input);
|
|
|
|
/// 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(const std::vector<ConfigItem> &args);
|
|
|
|
/// Fill in a single config option
|
|
bool _parse_single_config(const ConfigItem &item, std::size_t level = 0);
|
|
|
|
/// Parse "one" argument (some may eat more than one), delegate to parent if fails, add to missing if missing
|
|
/// from main return false if the parse has failed and needs to return to parent
|
|
bool _parse_single(std::vector<std::string> &args, bool &positional_only);
|
|
|
|
/// Count the required remaining positional arguments
|
|
CLI11_NODISCARD std::size_t _count_remaining_positionals(bool required_only = false) const;
|
|
|
|
/// Count the required remaining positional arguments
|
|
CLI11_NODISCARD bool _has_remaining_positionals() const;
|
|
|
|
/// Parse a positional, go up the tree to check
|
|
/// @param haltOnSubcommand if set to true the operation will not process subcommands merely return false
|
|
/// Return true if the positional was used false otherwise
|
|
bool _parse_positional(std::vector<std::string> &args, bool haltOnSubcommand);
|
|
|
|
/// Locate a subcommand by name with two conditions, should disabled subcommands be ignored, and should used
|
|
/// subcommands be ignored
|
|
CLI11_NODISCARD App *
|
|
_find_subcommand(const std::string &subc_name, bool ignore_disabled, bool ignore_used) const noexcept;
|
|
|
|
/// 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);
|
|
|
|
/// Parse a short (false) or long (true) argument, must be at the top of the list
|
|
/// if local_processing_only is set to true then fallthrough is disabled will return false if not found
|
|
/// 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, bool local_processing_only);
|
|
|
|
/// Trigger the pre_parse callback if needed
|
|
void _trigger_pre_parse(std::size_t remaining_args);
|
|
|
|
/// Get the appropriate parent to fallthrough to which is the first one that has a name or the main app
|
|
App *_get_fallthrough_parent();
|
|
|
|
/// Helper function to run through all possible comparisons of subcommand names to check there is no overlap
|
|
CLI11_NODISCARD const std::string &_compare_subcommand_names(const App &subcom, const App &base) const;
|
|
|
|
/// Helper function to place extra values in the most appropriate position
|
|
void _move_to_missing(detail::Classifier val_type, const std::string &val);
|
|
|
|
public:
|
|
/// function that could be used by subclasses of App to shift options around into subcommands
|
|
void _move_option(Option *opt, App *app);
|
|
}; // namespace CLI
|
|
|
|
/// 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
|
|
CLI11_INLINE void TriggerOn(App *trigger_app, App *app_to_enable);
|
|
|
|
/// Helper function to enable one option group/subcommand when another is used
|
|
CLI11_INLINE void TriggerOn(App *trigger_app, std::vector<App *> apps_to_enable);
|
|
|
|
/// Helper function to disable one option group/subcommand when another is used
|
|
CLI11_INLINE void TriggerOff(App *trigger_app, App *app_to_enable);
|
|
|
|
/// Helper function to disable one option group/subcommand when another is used
|
|
CLI11_INLINE void TriggerOff(App *trigger_app, std::vector<App *> apps_to_enable);
|
|
|
|
/// Helper function to mark an option as deprecated
|
|
CLI11_INLINE void deprecate_option(Option *opt, const std::string &replacement = "");
|
|
|
|
/// Helper function to mark an option as deprecated
|
|
inline void deprecate_option(App *app, const std::string &option_name, const std::string &replacement = "") {
|
|
auto *opt = app->get_option(option_name);
|
|
deprecate_option(opt, replacement);
|
|
}
|
|
|
|
/// Helper function to mark an option as deprecated
|
|
inline void deprecate_option(App &app, const std::string &option_name, const std::string &replacement = "") {
|
|
auto *opt = app.get_option(option_name);
|
|
deprecate_option(opt, replacement);
|
|
}
|
|
|
|
/// Helper function to mark an option as retired
|
|
CLI11_INLINE void retire_option(App *app, Option *opt);
|
|
|
|
/// Helper function to mark an option as retired
|
|
CLI11_INLINE void retire_option(App &app, Option *opt);
|
|
|
|
/// Helper function to mark an option as retired
|
|
CLI11_INLINE void retire_option(App *app, const std::string &option_name);
|
|
|
|
/// Helper function to mark an option as retired
|
|
CLI11_INLINE void retire_option(App &app, const std::string &option_name);
|
|
|
|
namespace detail {
|
|
/// This class is simply to allow tests access to App's protected functions
|
|
struct AppFriend {
|
|
#ifdef CLI11_CPP14
|
|
|
|
/// Wrap _parse_short, perfectly forward arguments and return
|
|
template <typename... Args> static decltype(auto) parse_arg(App *app, Args &&...args) {
|
|
return app->_parse_arg(std::forward<Args>(args)...);
|
|
}
|
|
|
|
/// Wrap _parse_subcommand, perfectly forward arguments and return
|
|
template <typename... Args> static decltype(auto) parse_subcommand(App *app, Args &&...args) {
|
|
return app->_parse_subcommand(std::forward<Args>(args)...);
|
|
}
|
|
#else
|
|
/// 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)...);
|
|
}
|
|
#endif
|
|
/// 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
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// [CLI11:app_hpp:end]
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} // namespace CLI
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#ifndef CLI11_COMPILE
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#include "impl/App_inl.hpp"
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#endif
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