CLI11 2.3.1
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App.hpp
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1// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
2// under NSF AWARD 1414736 and by the respective contributors.
3// All rights reserved.
4//
5// SPDX-License-Identifier: BSD-3-Clause
6
7#pragma once
8
9// [CLI11:public_includes:set]
10#include <algorithm>
11#include <cstdint>
12#include <functional>
13#include <iostream>
14#include <iterator>
15#include <memory>
16#include <numeric>
17#include <set>
18#include <sstream>
19#include <string>
20#include <utility>
21#include <vector>
22// [CLI11:public_includes:end]
23
24// CLI Library includes
25#include "ConfigFwd.hpp"
26#include "Error.hpp"
27#include "FormatterFwd.hpp"
28#include "Macros.hpp"
29#include "Option.hpp"
30#include "Split.hpp"
31#include "StringTools.hpp"
32#include "TypeTools.hpp"
33
34namespace CLI {
35// [CLI11:app_hpp:verbatim]
36
37#ifndef CLI11_PARSE
38#define CLI11_PARSE(app, argc, argv) \
39 try { \
40 (app).parse((argc), (argv)); \
41 } catch(const CLI::ParseError &e) { \
42 return (app).exit(e); \
43 }
44#endif
45
46namespace detail {
48struct AppFriend;
49} // namespace detail
50
51namespace FailureMessage {
52std::string simple(const App *app, const Error &e);
53std::string help(const App *app, const Error &e);
54} // namespace FailureMessage
55
57
58enum class config_extras_mode : char { error = 0, ignore, ignore_all, capture };
59
60class App;
61
62using App_p = std::shared_ptr<App>;
63
64namespace detail {
66
67template <typename T, enable_if_t<!std::is_integral<T>::value || (sizeof(T) <= 1U), detail::enabler> = detail::dummy>
69 return opt->always_capture_default();
70}
71
73template <typename T, enable_if_t<std::is_integral<T>::value && (sizeof(T) > 1U), detail::enabler> = detail::dummy>
76}
77
78} // namespace detail
79
80class Option_group;
82
85class App {
86 friend Option;
87 friend detail::AppFriend;
88
89 protected:
90 // This library follows the Google style guide for member names ending in underscores
91
94
96 std::string name_{};
97
99 std::string description_{};
100
102 bool allow_extras_{false};
103
107
109 bool prefix_command_{false};
110
113
115 bool required_{false};
116
118 bool disabled_{false};
119
121 bool pre_parse_called_{false};
122
126
128 std::function<void(std::size_t)> pre_parse_callback_{};
129
131 std::function<void()> parse_complete_callback_{};
132
134 std::function<void()> final_callback_{};
135
139
142
144 std::vector<Option_p> options_{};
145
149
151 std::string footer_{};
152
154 std::function<std::string()> footer_callback_{};
155
157 Option *help_ptr_{nullptr};
158
161
164
166 std::shared_ptr<FormatterBase> formatter_{new Formatter()};
167
169 std::function<std::string(const App *, const Error &e)> failure_message_{FailureMessage::simple};
170
174
175 using missing_t = std::vector<std::pair<detail::Classifier, std::string>>;
176
181
183 std::vector<Option *> parse_order_{};
184
186 std::vector<App *> parsed_subcommands_{};
187
189 std::set<App *> exclude_subcommands_{};
190
193 std::set<Option *> exclude_options_{};
194
197 std::set<App *> need_subcommands_{};
198
201 std::set<Option *> need_options_{};
202
206
208 std::vector<App_p> subcommands_{};
209
211 bool ignore_case_{false};
212
215
217 bool fallthrough_{false};
218
221#ifdef _WIN32
222 true
223#else
224 false
225#endif
226 };
229
230 enum class startup_mode : char { stable, enabled, disabled };
234
236 bool configurable_{false};
237
240
243
246 bool silent_{false};
247
249 std::uint32_t parsed_{0U};
250
253
256
258 std::size_t require_option_min_{0};
259
261 std::size_t require_option_max_{0};
262
264 App *parent_{nullptr};
265
267 std::string group_{"Subcommands"};
268
270 std::vector<std::string> aliases_{};
271
275
278
280 std::shared_ptr<Config> config_formatter_{new ConfigTOML()};
281
283
285 App(std::string app_description, std::string app_name, App *parent);
286
287 public:
290
292 explicit App(std::string app_description = "", std::string app_name = "")
293 : App(app_description, app_name, nullptr) {
294 set_help_flag("-h,--help", "Print this help message and exit");
295 }
296
297 App(const App &) = delete;
298 App &operator=(const App &) = delete;
299
301 virtual ~App() = default;
302
309 App *callback(std::function<void()> app_callback) {
311 parse_complete_callback_ = std::move(app_callback);
312 } else {
313 final_callback_ = std::move(app_callback);
314 }
315 return this;
316 }
317
320 App *final_callback(std::function<void()> app_callback) {
321 final_callback_ = std::move(app_callback);
322 return this;
323 }
324
327 App *parse_complete_callback(std::function<void()> pc_callback) {
328 parse_complete_callback_ = std::move(pc_callback);
329 return this;
330 }
331
334 App *preparse_callback(std::function<void(std::size_t)> pp_callback) {
335 pre_parse_callback_ = std::move(pp_callback);
336 return this;
337 }
338
340 App *name(std::string app_name = "");
341
343 App *alias(std::string app_name);
344
346 App *allow_extras(bool allow = true) {
347 allow_extras_ = allow;
348 return this;
349 }
350
352 App *required(bool require = true) {
353 required_ = require;
354 return this;
355 }
356
358 App *disabled(bool disable = true) {
359 disabled_ = disable;
360 return this;
361 }
362
364 App *silent(bool silence = true) {
365 silent_ = silence;
366 return this;
367 }
368
370 App *disabled_by_default(bool disable = true) {
371 if(disable) {
373 } else {
375 }
376 return this;
377 }
378
381 App *enabled_by_default(bool enable = true) {
382 if(enable) {
384 } else {
387 }
388 return this;
389 }
390
392 App *immediate_callback(bool immediate = true);
393
395 App *validate_positionals(bool validate = true) {
396 validate_positionals_ = validate;
397 return this;
398 }
399
401 App *validate_optional_arguments(bool validate = true) {
403 return this;
404 }
405
407 App *allow_config_extras(bool allow = true) {
408 if(allow) {
410 allow_extras_ = true;
411 } else {
413 }
414 return this;
415 }
416
420 return this;
421 }
422
424 App *prefix_command(bool allow = true) {
425 prefix_command_ = allow;
426 return this;
427 }
428
430 App *ignore_case(bool value = true);
431
434 App *allow_windows_style_options(bool value = true) {
436 return this;
437 }
438
440 App *positionals_at_end(bool value = true) {
441 positionals_at_end_ = value;
442 return this;
443 }
444
446 App *configurable(bool value = true) {
447 configurable_ = value;
448 return this;
449 }
450
452 App *ignore_underscore(bool value = true);
453
455 App *formatter(std::shared_ptr<FormatterBase> fmt) {
456 formatter_ = fmt;
457 return this;
458 }
459
461 App *formatter_fn(std::function<std::string(const App *, std::string, AppFormatMode)> fmt) {
462 formatter_ = std::make_shared<FormatterLambda>(fmt);
463 return this;
464 }
465
467 App *config_formatter(std::shared_ptr<Config> fmt) {
468 config_formatter_ = fmt;
469 return this;
470 }
471
473 CLI11_NODISCARD bool parsed() const { return parsed_ > 0; }
474
477
481
496 Option *add_option(std::string option_name,
497 callback_t option_callback,
498 std::string option_description = "",
499 bool defaulted = false,
500 std::function<std::string()> func = {});
501
503 template <typename AssignTo,
504 typename ConvertTo = AssignTo,
506 Option *add_option(std::string option_name,
507 AssignTo &variable,
508 std::string option_description = "") {
509
510 auto fun = [&variable](const CLI::results_t &res) { // comment for spacing
511 return detail::lexical_conversion<AssignTo, ConvertTo>(res, variable);
512 };
513
514 Option *opt = add_option(option_name, fun, option_description, false, [&variable]() {
515 return CLI::detail::checked_to_string<AssignTo, ConvertTo>(variable);
516 });
517 opt->type_name(detail::type_name<ConvertTo>());
518 // these must be actual lvalues since (std::max) sometimes is defined in terms of references and references
519 // to structs used in the evaluation can be temporary so that would cause issues.
522 opt->type_size(detail::type_count_min<ConvertTo>::value, (std::max)(Tcount, XCcount));
523 opt->expected(detail::expected_count<ConvertTo>::value);
525 return opt;
526 }
527
529 template <typename AssignTo, enable_if_t<!std::is_const<AssignTo>::value, detail::enabler> = detail::dummy>
530 Option *add_option_no_stream(std::string option_name,
531 AssignTo &variable,
532 std::string option_description = "") {
533
534 auto fun = [&variable](const CLI::results_t &res) { // comment for spacing
535 return detail::lexical_conversion<AssignTo, AssignTo>(res, variable);
536 };
537
538 Option *opt = add_option(option_name, fun, option_description, false, []() { return std::string{}; });
539 opt->type_name(detail::type_name<AssignTo>());
540 opt->type_size(detail::type_count_min<AssignTo>::value, detail::type_count<AssignTo>::value);
541 opt->expected(detail::expected_count<AssignTo>::value);
543 return opt;
544 }
545
547 template <typename ArgType>
548 Option *add_option_function(std::string option_name,
549 const std::function<void(const ArgType &)> &func,
550 std::string option_description = "") {
551
552 auto fun = [func](const CLI::results_t &res) {
553 ArgType variable;
554 bool result = detail::lexical_conversion<ArgType, ArgType>(res, variable);
555 if(result) {
556 func(variable);
557 }
558 return result;
559 };
560
561 Option *opt = add_option(option_name, std::move(fun), option_description, false);
562 opt->type_name(detail::type_name<ArgType>());
563 opt->type_size(detail::type_count_min<ArgType>::value, detail::type_count<ArgType>::value);
564 opt->expected(detail::expected_count<ArgType>::value);
565 return opt;
566 }
567
569 Option *add_option(std::string option_name) {
570 return add_option(option_name, CLI::callback_t{}, std::string{}, false);
571 }
572
574 template <typename T,
575 enable_if_t<std::is_const<T>::value && std::is_constructible<std::string, T>::value, detail::enabler> =
577 Option *add_option(std::string option_name, T &option_description) {
578 return add_option(option_name, CLI::callback_t(), option_description, false);
579 }
580
582 Option *set_help_flag(std::string flag_name = "", const std::string &help_description = "");
583
585 Option *set_help_all_flag(std::string help_name = "", const std::string &help_description = "");
586
588 Option *set_version_flag(std::string flag_name = "",
589 const std::string &versionString = "",
590 const std::string &version_help = "Display program version information and exit");
591
593 Option *set_version_flag(std::string flag_name,
594 std::function<std::string()> vfunc,
595 const std::string &version_help = "Display program version information and exit");
596
597 private:
599 Option *_add_flag_internal(std::string flag_name, CLI::callback_t fun, std::string flag_description);
600
601 public:
603 Option *add_flag(std::string flag_name) { return _add_flag_internal(flag_name, CLI::callback_t(), std::string{}); }
604
608 template <typename T,
609 enable_if_t<std::is_const<T>::value && std::is_constructible<std::string, T>::value, detail::enabler> =
611 Option *add_flag(std::string flag_name, T &flag_description) {
612 return _add_flag_internal(flag_name, CLI::callback_t(), flag_description);
613 }
614
617 template <typename T,
618 enable_if_t<!detail::is_mutable_container<T>::value && !std::is_const<T>::value &&
619 !std::is_constructible<std::function<void(int)>, T>::value,
621 Option *add_flag(std::string flag_name,
622 T &flag_result,
623 std::string flag_description = "") {
624
625 CLI::callback_t fun = [&flag_result](const CLI::results_t &res) {
626 return CLI::detail::lexical_cast(res[0], flag_result);
627 };
628 auto *opt = _add_flag_internal(flag_name, std::move(fun), std::move(flag_description));
629 return detail::default_flag_modifiers<T>(opt);
630 }
631
633 template <typename T,
634 enable_if_t<!std::is_assignable<std::function<void(std::int64_t)> &, T>::value, detail::enabler> =
636 Option *add_flag(std::string flag_name,
637 std::vector<T> &flag_results,
638 std::string flag_description = "") {
639 CLI::callback_t fun = [&flag_results](const CLI::results_t &res) {
640 bool retval = true;
641 for(const auto &elem : res) {
642 flag_results.emplace_back();
643 retval &= detail::lexical_cast(elem, flag_results.back());
644 }
645 return retval;
646 };
647 return _add_flag_internal(flag_name, std::move(fun), std::move(flag_description))
650 }
651
653 Option *add_flag_callback(std::string flag_name,
654 std::function<void(void)> function,
655 std::string flag_description = "");
656
658 Option *add_flag_function(std::string flag_name,
659 std::function<void(std::int64_t)> function,
660 std::string flag_description = "");
661
662#ifdef CLI11_CPP14
664 Option *add_flag(std::string flag_name,
665 std::function<void(std::int64_t)> function,
666 std::string flag_description = "") {
667 return add_flag_function(std::move(flag_name), std::move(function), std::move(flag_description));
668 }
669#endif
670
672 Option *set_config(std::string option_name = "",
673 std::string default_filename = "",
674 const std::string &help_message = "Read an ini file",
675 bool config_required = false);
676
679
681 template <typename T = Option_group>
682 T *add_option_group(std::string group_name, std::string group_description = "") {
683 if(!detail::valid_alias_name_string(group_name)) {
684 throw IncorrectConstruction("option group names may not contain newlines or null characters");
685 }
686 auto option_group = std::make_shared<T>(std::move(group_description), group_name, this);
687 auto *ptr = option_group.get();
688 // move to App_p for overload resolution on older gcc versions
689 App_p app_ptr = std::dynamic_pointer_cast<App>(option_group);
690 add_subcommand(std::move(app_ptr));
691 return ptr;
692 }
693
697
699 App *add_subcommand(std::string subcommand_name = "", std::string subcommand_description = "");
700
703
705 bool remove_subcommand(App *subcom);
706
709 App *get_subcommand(const App *subcom) const;
710
712 CLI11_NODISCARD App *get_subcommand(std::string subcom) const;
713
715 CLI11_NODISCARD App *get_subcommand(int index = 0) const;
716
719
722
725
727 CLI11_NODISCARD App *get_option_group(std::string group_name) const;
728
732 CLI11_NODISCARD std::size_t count() const { return parsed_; }
733
736 CLI11_NODISCARD std::size_t count_all() const;
737
739 App *group(std::string group_name) {
740 group_ = group_name;
741 return this;
742 }
743
748 return this;
749 }
750
755 if(value < 0) {
757 require_subcommand_max_ = static_cast<std::size_t>(-value);
758 } else {
759 require_subcommand_min_ = static_cast<std::size_t>(value);
760 require_subcommand_max_ = static_cast<std::size_t>(value);
761 }
762 return this;
763 }
764
767 App *require_subcommand(std::size_t min, std::size_t max) {
770 return this;
771 }
772
777 return this;
778 }
779
783 App *require_option(int value) {
784 if(value < 0) {
786 require_option_max_ = static_cast<std::size_t>(-value);
787 } else {
788 require_option_min_ = static_cast<std::size_t>(value);
789 require_option_max_ = static_cast<std::size_t>(value);
790 }
791 return this;
792 }
793
796 App *require_option(std::size_t min, std::size_t max) {
799 return this;
800 }
801
804 App *fallthrough(bool value = true) {
805 fallthrough_ = value;
806 return this;
807 }
808
811 explicit operator bool() const { return parsed_ > 0; }
812
816
820 virtual void pre_callback() {}
821
825 //
827 void clear();
828
831 void parse(int argc, const char *const *argv);
832
837 void parse(std::string commandline, bool program_name_included = false);
838
841 void parse(std::vector<std::string> &args);
842
844 void parse(std::vector<std::string> &&args);
845
846 void parse_from_stream(std::istream &input);
847
849 void failure_message(std::function<std::string(const App *, const Error &e)> function) {
850 failure_message_ = function;
851 }
852
854 int exit(const Error &e, std::ostream &out = std::cout, std::ostream &err = std::cerr) const;
855
859
861 CLI11_NODISCARD std::size_t count(std::string option_name) const { return get_option(option_name)->count(); }
862
865 CLI11_NODISCARD std::vector<App *> get_subcommands() const { return parsed_subcommands_; }
866
869 std::vector<const App *> get_subcommands(const std::function<bool(const App *)> &filter) const;
870
873 std::vector<App *> get_subcommands(const std::function<bool(App *)> &filter);
874
876 bool got_subcommand(const App *subcom) const {
877 // get subcom needed to verify that this was a real subcommand
878 return get_subcommand(subcom)->parsed_ > 0;
879 }
880
882 CLI11_NODISCARD bool got_subcommand(std::string subcommand_name) const {
883 return get_subcommand(subcommand_name)->parsed_ > 0;
884 }
885
888 if(opt == nullptr) {
889 throw OptionNotFound("nullptr passed");
890 }
891 exclude_options_.insert(opt);
892 return this;
893 }
894
896 App *excludes(App *app) {
897 if(app == nullptr) {
898 throw OptionNotFound("nullptr passed");
899 }
900 if(app == this) {
901 throw OptionNotFound("cannot self reference in needs");
902 }
903 auto res = exclude_subcommands_.insert(app);
904 // subcommand exclusion should be symmetric
905 if(res.second) {
906 app->exclude_subcommands_.insert(this);
907 }
908 return this;
909 }
910
911 App *needs(Option *opt) {
912 if(opt == nullptr) {
913 throw OptionNotFound("nullptr passed");
914 }
915 need_options_.insert(opt);
916 return this;
917 }
918
919 App *needs(App *app) {
920 if(app == nullptr) {
921 throw OptionNotFound("nullptr passed");
922 }
923 if(app == this) {
924 throw OptionNotFound("cannot self reference in needs");
925 }
926 need_subcommands_.insert(app);
927 return this;
928 }
929
932
935
938
940 bool remove_needs(App *app);
944
946 App *footer(std::string footer_string) {
947 footer_ = std::move(footer_string);
948 return this;
949 }
951 App *footer(std::function<std::string()> footer_function) {
952 footer_callback_ = std::move(footer_function);
953 return this;
954 }
957 CLI11_NODISCARD std::string config_to_str(bool default_also = false, bool write_description = false) const {
958 return config_formatter_->to_config(this, default_also, write_description, "");
959 }
960
963 CLI11_NODISCARD std::string help(std::string prev = "", AppFormatMode mode = AppFormatMode::Normal) const;
964
966 CLI11_NODISCARD std::string version() const;
970
972 CLI11_NODISCARD std::shared_ptr<FormatterBase> get_formatter() const { return formatter_; }
973
975 CLI11_NODISCARD std::shared_ptr<Config> get_config_formatter() const { return config_formatter_; }
976
978 CLI11_NODISCARD std::shared_ptr<ConfigBase> get_config_formatter_base() const {
979 // This is safer as a dynamic_cast if we have RTTI, as Config -> ConfigBase
980#if CLI11_USE_STATIC_RTTI == 0
981 return std::dynamic_pointer_cast<ConfigBase>(config_formatter_);
982#else
983 return std::static_pointer_cast<ConfigBase>(config_formatter_);
984#endif
985 }
986
988 CLI11_NODISCARD std::string get_description() const { return description_; }
989
991 App *description(std::string app_description) {
992 description_ = std::move(app_description);
993 return this;
994 }
995
997 std::vector<const Option *> get_options(const std::function<bool(const Option *)> filter = {}) const;
998
1000 std::vector<Option *> get_options(const std::function<bool(Option *)> filter = {});
1001
1003 Option *get_option_no_throw(std::string option_name) noexcept;
1004
1006 CLI11_NODISCARD const Option *get_option_no_throw(std::string option_name) const noexcept;
1007
1009 CLI11_NODISCARD const Option *get_option(std::string option_name) const {
1010 const auto *opt = get_option_no_throw(option_name);
1011 if(opt == nullptr) {
1012 throw OptionNotFound(option_name);
1013 }
1014 return opt;
1015 }
1016
1018 Option *get_option(std::string option_name) {
1019 auto *opt = get_option_no_throw(option_name);
1020 if(opt == nullptr) {
1021 throw OptionNotFound(option_name);
1022 }
1023 return opt;
1024 }
1025
1027 const Option *operator[](const std::string &option_name) const { return get_option(option_name); }
1028
1030 const Option *operator[](const char *option_name) const { return get_option(option_name); }
1031
1034
1037
1040
1043
1046
1049
1051 CLI11_NODISCARD const std::string &get_group() const { return group_; }
1052
1054 CLI11_NODISCARD std::string get_footer() const {
1055 return (footer_callback_) ? footer_callback_() + '\n' + footer_ : footer_;
1056 }
1057
1060
1063
1066
1069
1072
1075
1077 CLI11_NODISCARD bool get_required() const { return required_; }
1078
1080 CLI11_NODISCARD bool get_disabled() const { return disabled_; }
1081
1083 CLI11_NODISCARD bool get_silent() const { return silent_; }
1084
1087
1090
1097
1100
1103
1106
1109
1112
1115
1118
1121
1123 App *get_parent() { return parent_; }
1124
1126 CLI11_NODISCARD const App *get_parent() const { return parent_; }
1127
1129 CLI11_NODISCARD const std::string &get_name() const { return name_; }
1130
1132 CLI11_NODISCARD const std::vector<std::string> &get_aliases() const { return aliases_; }
1133
1136 aliases_.clear();
1137 return this;
1138 }
1139
1141 CLI11_NODISCARD std::string get_display_name(bool with_aliases = false) const;
1142
1144 CLI11_NODISCARD bool check_name(std::string name_to_check) const;
1145
1147 CLI11_NODISCARD std::vector<std::string> get_groups() const;
1148
1150 CLI11_NODISCARD const std::vector<Option *> &parse_order() const { return parse_order_; }
1151
1153 CLI11_NODISCARD std::vector<std::string> remaining(bool recurse = false) const;
1154
1156 CLI11_NODISCARD std::vector<std::string> remaining_for_passthrough(bool recurse = false) const;
1157
1159 CLI11_NODISCARD std::size_t remaining_size(bool recurse = false) const;
1160
1162
1163 protected:
1168 void _validate() const;
1169
1174
1176 void run_callback(bool final_mode = false, bool suppress_final_callback = false);
1177
1179 CLI11_NODISCARD bool _valid_subcommand(const std::string &current, bool ignore_used = true) const;
1180
1183 bool ignore_used_subcommands = true) const;
1184
1185 // The parse function is now broken into several parts, and part of process
1186
1189
1192
1195
1199 void _process_help_flags(bool trigger_help = false, bool trigger_all_help = false) const;
1200
1203
1205 void _process();
1206
1209
1212 void _process_extras(std::vector<std::string> &args);
1213
1216
1218 void _parse(std::vector<std::string> &args);
1219
1221 void _parse(std::vector<std::string> &&args);
1222
1224 void _parse_stream(std::istream &input);
1225
1230 void _parse_config(const std::vector<ConfigItem> &args);
1231
1233 bool _parse_single_config(const ConfigItem &item, std::size_t level = 0);
1234
1237 bool _parse_single(std::vector<std::string> &args, bool &positional_only);
1238
1240 CLI11_NODISCARD std::size_t _count_remaining_positionals(bool required_only = false) const;
1241
1244
1248 bool _parse_positional(std::vector<std::string> &args, bool haltOnSubcommand);
1249
1253 _find_subcommand(const std::string &subc_name, bool ignore_disabled, bool ignore_used) const noexcept;
1254
1259 bool _parse_subcommand(std::vector<std::string> &args);
1260
1263 bool _parse_arg(std::vector<std::string> &args, detail::Classifier current_type);
1264
1266 void _trigger_pre_parse(std::size_t remaining_args);
1267
1270
1272 CLI11_NODISCARD const std::string &_compare_subcommand_names(const App &subcom, const App &base) const;
1273
1275 void _move_to_missing(detail::Classifier val_type, const std::string &val);
1276
1277 public:
1279 void _move_option(Option *opt, App *app);
1280}; // namespace CLI
1281
1283class Option_group : public App {
1284 public:
1285 Option_group(std::string group_description, std::string group_name, App *parent)
1286 : App(std::move(group_description), "", parent) {
1287 group(group_name);
1288 // option groups should have automatic fallthrough
1289 }
1290 using App::add_option;
1293 if(get_parent() == nullptr) {
1294 throw OptionNotFound("Unable to locate the specified option");
1295 }
1296 get_parent()->_move_option(opt, this);
1297 return opt;
1298 }
1300 void add_options(Option *opt) { add_option(opt); }
1302 template <typename... Args> void add_options(Option *opt, Args... args) {
1303 add_option(opt);
1304 add_options(args...);
1305 }
1306 using App::add_subcommand;
1309 App_p subc = subcom->get_parent()->get_subcommand_ptr(subcom);
1310 subc->get_parent()->remove_subcommand(subcom);
1311 add_subcommand(std::move(subc));
1312 return subcom;
1313 }
1314};
1315
1317CLI11_INLINE void TriggerOn(App *trigger_app, App *app_to_enable);
1318
1320CLI11_INLINE void TriggerOn(App *trigger_app, std::vector<App *> apps_to_enable);
1321
1323CLI11_INLINE void TriggerOff(App *trigger_app, App *app_to_enable);
1324
1326CLI11_INLINE void TriggerOff(App *trigger_app, std::vector<App *> apps_to_enable);
1327
1329CLI11_INLINE void deprecate_option(Option *opt, const std::string &replacement = "");
1330
1332inline void deprecate_option(App *app, const std::string &option_name, const std::string &replacement = "") {
1333 auto *opt = app->get_option(option_name);
1334 deprecate_option(opt, replacement);
1335}
1336
1338inline void deprecate_option(App &app, const std::string &option_name, const std::string &replacement = "") {
1339 auto *opt = app.get_option(option_name);
1340 deprecate_option(opt, replacement);
1341}
1342
1345
1348
1350CLI11_INLINE void retire_option(App *app, const std::string &option_name);
1351
1353CLI11_INLINE void retire_option(App &app, const std::string &option_name);
1354
1355namespace FailureMessage {
1356
1358CLI11_INLINE std::string simple(const App *app, const Error &e);
1359
1361CLI11_INLINE std::string help(const App *app, const Error &e);
1362
1363} // namespace FailureMessage
1364
1365namespace detail {
1368#ifdef CLI11_CPP14
1369
1371 template <typename... Args> static decltype(auto) parse_arg(App *app, Args &&...args) {
1372 return app->_parse_arg(std::forward<Args>(args)...);
1373 }
1374
1376 template <typename... Args> static decltype(auto) parse_subcommand(App *app, Args &&...args) {
1377 return app->_parse_subcommand(std::forward<Args>(args)...);
1378 }
1379#else
1381 template <typename... Args>
1382 static auto parse_arg(App *app, Args &&...args) ->
1383 typename std::result_of<decltype (&App::_parse_arg)(App, Args...)>::type {
1384 return app->_parse_arg(std::forward<Args>(args)...);
1385 }
1386
1388 template <typename... Args>
1389 static auto parse_subcommand(App *app, Args &&...args) ->
1390 typename std::result_of<decltype (&App::_parse_subcommand)(App, Args...)>::type {
1391 return app->_parse_subcommand(std::forward<Args>(args)...);
1392 }
1393#endif
1396};
1397} // namespace detail
1398
1399// [CLI11:app_hpp:end]
1400} // namespace CLI
1401
1402#ifndef CLI11_COMPILE
1403#include "impl/App_inl.hpp"
1404#endif
#define CLI11_INLINE
Definition: Macros.hpp:73
#define CLI11_NODISCARD
Definition: Macros.hpp:47
Creates a command line program, with very few defaults.
Definition: App.hpp:85
bool _parse_single(std::vector< std::string > &args, bool &positional_only)
const Option * operator[](const std::string &option_name) const
Shortcut bracket operator for getting a pointer to an option.
Definition: App.hpp:1027
App * configurable(bool value=true)
Specify that the subcommand can be triggered by a config file.
Definition: App.hpp:446
void _process_env()
Get envname options if not yet passed. Runs on all subcommands.
App * _get_fallthrough_parent()
Get the appropriate parent to fallthrough to which is the first one that has a name or the main app.
void _process()
Process callbacks and such.
CLI11_NODISCARD std::string config_to_str(bool default_also=false, bool write_description=false) const
Definition: App.hpp:957
CLI11_NODISCARD bool get_enabled_by_default() const
Get the status of disabled by default.
Definition: App.hpp:1092
Option * config_ptr_
Pointer to the config option.
Definition: App.hpp:277
CLI11_NODISCARD bool got_subcommand(std::string subcommand_name) const
Check with name instead of pointer to see if subcommand was selected.
Definition: App.hpp:882
Option * set_version_flag(std::string flag_name, std::function< std::string()> vfunc, const std::string &version_help="Display program version information and exit")
Generate the version string through a callback function.
CLI11_NODISCARD bool get_configurable() const
Check the status of the allow windows style options.
Definition: App.hpp:1048
CLI11_NODISCARD std::vector< std::string > remaining(bool recurse=false) const
This returns the missing options from the current subcommand.
CLI11_NODISCARD bool check_name(std::string name_to_check) const
Check the name, case insensitive and underscore insensitive if set.
void parse(std::string commandline, bool program_name_included=false)
Option * add_option_no_stream(std::string option_name, AssignTo &variable, std::string option_description="")
Add option for assigning to a variable.
Definition: App.hpp:530
CLI11_NODISCARD CLI::App_p get_subcommand_ptr(int index=0) const
Get an owning pointer to subcommand by index.
CLI11_NODISCARD std::shared_ptr< FormatterBase > get_formatter() const
Access the formatter.
Definition: App.hpp:972
Option * add_option(std::string option_name)
Add option with no description or variable assignment.
Definition: App.hpp:569
App * config_formatter(std::shared_ptr< Config > fmt)
Set the config formatter.
Definition: App.hpp:467
bool remove_excludes(App *app)
Removes a subcommand from the excludes list of this subcommand.
App * allow_config_extras(bool allow=true)
ignore extras in config files
Definition: App.hpp:407
App * disabled_by_default(bool disable=true)
Set the subcommand to be disabled by default, so on clear(), at the start of each parse it is disable...
Definition: App.hpp:370
App * ignore_case(bool value=true)
Ignore case. Subcommands inherit value.
CLI11_NODISCARD App * _find_subcommand(const std::string &subc_name, bool ignore_disabled, bool ignore_used) const noexcept
bool _parse_single_config(const ConfigItem &item, std::size_t level=0)
Fill in a single config option.
CLI11_NODISCARD bool _valid_subcommand(const std::string &current, bool ignore_used=true) const
Check to see if a subcommand is valid. Give up immediately if subcommand max has been reached.
Option * set_version_flag(std::string flag_name="", const std::string &versionString="", const std::string &version_help="Display program version information and exit")
Set a version flag and version display string, replace the existing one if present.
std::size_t require_option_min_
Minimum required options (not inheritable!)
Definition: App.hpp:258
void _parse(std::vector< std::string > &args)
Internal parse function.
void _parse(std::vector< std::string > &&args)
Internal parse function.
App * silent(bool silence=true)
silence the subcommand from showing up in the processed list
Definition: App.hpp:364
App * clear_aliases()
clear all the aliases of the current App
Definition: App.hpp:1135
CLI11_NODISCARD bool get_ignore_underscore() const
Check the status of ignore_underscore.
Definition: App.hpp:1036
App * allow_extras(bool allow=true)
Remove the error when extras are left over on the command line.
Definition: App.hpp:346
App * fallthrough(bool value=true)
Definition: App.hpp:804
std::size_t require_subcommand_max_
Max number of subcommands allowed (parsing stops after this number). 0 is unlimited INHERITABLE.
Definition: App.hpp:255
Option * get_config_ptr()
Get a pointer to the config option.
Definition: App.hpp:1111
std::vector< App_p > subcommands_
Storage for subcommand list.
Definition: App.hpp:208
CLI11_NODISCARD bool get_allow_extras() const
Get the status of allow extras.
Definition: App.hpp:1074
bool remove_option(Option *opt)
Removes an option from the App. Takes an option pointer. Returns true if found and removed.
std::uint32_t parsed_
Counts the number of times this command/subcommand was parsed.
Definition: App.hpp:249
App * require_subcommand()
The argumentless form of require subcommand requires 1 or more subcommands.
Definition: App.hpp:745
CLI11_NODISCARD std::size_t count_all() const
Option * get_option(std::string option_name)
Get an option by name (non-const version)
Definition: App.hpp:1018
OptionDefaults option_defaults_
The default values for options, customizable and changeable INHERITABLE.
Definition: App.hpp:141
CLI11_NODISCARD const Option * get_version_ptr() const
Get a pointer to the version option. (const)
Definition: App.hpp:1120
CLI11_NODISCARD std::vector< std::string > get_groups() const
Get the groups available directly from this option (in order)
bool _parse_positional(std::vector< std::string > &args, bool haltOnSubcommand)
Option * set_help_flag(std::string flag_name="", const std::string &help_description="")
Set a help flag, replace the existing one if present.
void _process_help_flags(bool trigger_help=false, bool trigger_all_help=false) const
CLI11_NODISCARD bool get_fallthrough() const
Check the status of fallthrough.
Definition: App.hpp:1039
bool disabled_
If set to true the subcommand is disabled and cannot be used, ignored for main app.
Definition: App.hpp:118
CLI11_NODISCARD bool get_prefix_command() const
Get the prefix command status.
Definition: App.hpp:1071
Option * add_option(std::string option_name, AssignTo &variable, std::string option_description="")
Add option for assigning to a variable.
Definition: App.hpp:506
CLI11_NODISCARD std::size_t get_require_subcommand_max() const
Get the required max subcommand value.
Definition: App.hpp:1062
bool required_
If set to true the subcommand is required to be processed and used, ignored for main app.
Definition: App.hpp:115
startup_mode
Definition: App.hpp:230
const Option * operator[](const char *option_name) const
Shortcut bracket operator for getting a pointer to an option.
Definition: App.hpp:1030
CLI11_NODISCARD bool get_immediate_callback() const
Get the status of disabled.
Definition: App.hpp:1086
Option * get_help_ptr()
Get a pointer to the help flag.
Definition: App.hpp:1102
App * require_subcommand(int value)
Definition: App.hpp:754
OptionDefaults * option_defaults()
Get the OptionDefault object, to set option defaults.
Definition: App.hpp:476
CLI11_NODISCARD App * get_subcommand(std::string subcom) const
Check to see if a subcommand is part of this command (text version)
void _process_extras()
Throw an error if anything is left over and should not be.
void _process_requirements()
Verify required options and cross requirements. Subcommands too (only if selected).
std::string footer_
Footer to put after all options in the help output INHERITABLE.
Definition: App.hpp:151
config_extras_mode allow_config_extras_
Definition: App.hpp:106
Option * get_option_no_throw(std::string option_name) noexcept
Get an option by name (noexcept non-const version)
CLI11_NODISCARD std::string get_footer() const
Generate and return the footer.
Definition: App.hpp:1054
std::vector< std::pair< detail::Classifier, std::string > > missing_t
Definition: App.hpp:175
App * required(bool require=true)
Remove the error when extras are left over on the command line.
Definition: App.hpp:352
Option * version_ptr_
A pointer to a version flag if there is one.
Definition: App.hpp:163
CLI11_NODISCARD const Option * get_help_all_ptr() const
Get a pointer to the help all flag. (const)
Definition: App.hpp:1108
App * parent_
A pointer to the parent if this is a subcommand.
Definition: App.hpp:264
std::set< Option * > exclude_options_
Definition: App.hpp:193
App * prefix_command(bool allow=true)
Do not parse anything after the first unrecognized option and return.
Definition: App.hpp:424
App * group(std::string group_name)
Changes the group membership.
Definition: App.hpp:739
void run_callback(bool final_mode=false, bool suppress_final_callback=false)
Internal function to run (App) callback, bottom up.
std::function< std::string()> footer_callback_
This is a function that generates a footer to put after all other options in help output.
Definition: App.hpp:154
App(const App &)=delete
CLI11_NODISCARD std::string get_display_name(bool with_aliases=false) const
Get a display name for an app.
std::function< void()> parse_complete_callback_
This is a function that runs when parsing has finished.
Definition: App.hpp:131
virtual void pre_callback()
Definition: App.hpp:820
void parse(int argc, const char *const *argv)
T * add_option_group(std::string group_name, std::string group_description="")
creates an option group as part of the given app
Definition: App.hpp:682
App * get_parent()
Get the parent of this subcommand (or nullptr if main app)
Definition: App.hpp:1123
Option * add_flag(std::string flag_name)
Add a flag with no description or variable assignment.
Definition: App.hpp:603
std::string name_
Subcommand name or program name (from parser if name is empty)
Definition: App.hpp:96
std::vector< App * > parsed_subcommands_
This is a list of the subcommands collected, in order.
Definition: App.hpp:186
App(std::string app_description="", std::string app_name="")
Create a new program. Pass in the same arguments as main(), along with a help string.
Definition: App.hpp:292
CLI11_NODISCARD const Option * get_help_ptr() const
Get a pointer to the help flag. (const)
Definition: App.hpp:1105
bool ignore_underscore_
If true, the program should ignore underscores INHERITABLE.
Definition: App.hpp:214
CLI::App_p get_subcommand_ptr(App *subcom) const
Check to see if a subcommand is part of this command and get a shared_ptr to it.
App * allow_windows_style_options(bool value=true)
Definition: App.hpp:434
missing_t missing_
Definition: App.hpp:180
CLI11_NODISCARD bool get_validate_positionals() const
Get the status of validating positionals.
Definition: App.hpp:1094
Option * add_option_function(std::string option_name, const std::function< void(const ArgType &)> &func, std::string option_description="")
Add option for a callback of a specific type.
Definition: App.hpp:548
CLI11_NODISCARD std::string version() const
Displays a version string.
std::size_t require_subcommand_min_
Minimum required subcommands (not inheritable!)
Definition: App.hpp:252
void clear()
Reset the parsed data.
std::function< std::string(const App *, const Error &e)> failure_message_
The error message printing function INHERITABLE.
Definition: App.hpp:169
bool remove_needs(App *app)
Removes a subcommand from the needs list of this subcommand.
bool _parse_arg(std::vector< std::string > &args, detail::Classifier current_type)
void failure_message(std::function< std::string(const App *, const Error &e)> function)
Provide a function to print a help message. The function gets access to the App pointer and error.
Definition: App.hpp:849
App * name(std::string app_name="")
Set a name for the app (empty will use parser to set the name)
bool has_automatic_name_
If set to true the name was automatically generated from the command line vs a user set name.
Definition: App.hpp:112
void _process_config_file()
Read and process a configuration file (main app only)
CLI11_NODISCARD App * get_option_group(std::string group_name) const
Check to see if an option group is part of this App.
CLI11_NODISCARD std::size_t get_require_option_max() const
Get the required max option value.
Definition: App.hpp:1068
App * enabled_by_default(bool enable=true)
Definition: App.hpp:381
void _process_extras(std::vector< std::string > &args)
App * footer(std::string footer_string)
Set footer.
Definition: App.hpp:946
App * needs(Option *opt)
Definition: App.hpp:911
App * require_option(int value)
Definition: App.hpp:783
std::vector< App * > get_subcommands(const std::function< bool(App *)> &filter)
virtual ~App()=default
virtual destructor
CLI11_NODISCARD std::size_t count(std::string option_name) const
Counts the number of times the given option was passed.
Definition: App.hpp:861
std::vector< Option_p > options_
The list of options, stored locally.
Definition: App.hpp:144
Option * help_all_ptr_
A pointer to the help all flag if there is one INHERITABLE.
Definition: App.hpp:160
bool validate_optional_arguments_
If set to true optional vector arguments are validated before assigning INHERITABLE.
Definition: App.hpp:242
void parse(std::vector< std::string > &args)
CLI11_NODISCARD CLI::App_p get_subcommand_ptr(std::string subcom) const
Check to see if a subcommand is part of this command (text version)
CLI11_NODISCARD std::vector< std::string > remaining_for_passthrough(bool recurse=false) const
This returns the missing options in a form ready for processing by another command line program.
App * add_subcommand(std::string subcommand_name="", std::string subcommand_description="")
Add a subcommand. Inherits INHERITABLE and OptionDefaults, and help flag.
CLI11_NODISCARD const Option * get_option_no_throw(std::string option_name) const noexcept
Get an option by name (noexcept const version)
std::function< void()> final_callback_
This is a function that runs when all processing has completed.
Definition: App.hpp:134
Option * add_option(std::string option_name, callback_t option_callback, std::string option_description="", bool defaulted=false, std::function< std::string()> func={})
App * require_option()
The argumentless form of require option requires 1 or more options be used.
Definition: App.hpp:774
void parse(std::vector< std::string > &&args)
The real work is done here. Expects a reversed vector.
App * preparse_callback(std::function< void(std::size_t)> pp_callback)
Definition: App.hpp:334
bool positionals_at_end_
specify that positional arguments come at the end of the argument sequence not inheritable
Definition: App.hpp:228
bool immediate_callback_
Definition: App.hpp:125
App * add_subcommand(CLI::App_p subcom)
Add a previously created app as a subcommand.
CLI11_NODISCARD std::size_t _count_remaining_positionals(bool required_only=false) const
Count the required remaining positional arguments.
CLI11_NODISCARD bool get_required() const
Get the status of required.
Definition: App.hpp:1077
Option * add_flag(std::string flag_name, T &flag_description)
Definition: App.hpp:611
bool remove_excludes(Option *opt)
Removes an option from the excludes list of this subcommand.
void parse_from_stream(std::istream &input)
CLI11_NODISCARD bool get_ignore_case() const
Check the status of ignore_case.
Definition: App.hpp:1033
App * parse_complete_callback(std::function< void()> pc_callback)
Definition: App.hpp:327
bool configurable_
if set to true the subcommand can be triggered via configuration files INHERITABLE
Definition: App.hpp:236
App * formatter_fn(std::function< std::string(const App *, std::string, AppFormatMode)> fmt)
Set the help formatter.
Definition: App.hpp:461
CLI11_NODISCARD const std::vector< std::string > & get_aliases() const
Get the aliases of the current app.
Definition: App.hpp:1132
App * description(std::string app_description)
Set the description of the app.
Definition: App.hpp:991
CLI11_NODISCARD std::shared_ptr< ConfigBase > get_config_formatter_base() const
Access the config formatter as a configBase pointer.
Definition: App.hpp:978
Option * set_help_all_flag(std::string help_name="", const std::string &help_description="")
Set a help all flag, replaced the existing one if present.
std::string description_
Description of the current program/subcommand.
Definition: App.hpp:99
App * excludes(App *app)
Sets excluded subcommands for the subcommand.
Definition: App.hpp:896
App(std::string app_description, std::string app_name, App *parent)
Special private constructor for subcommand.
bool remove_needs(Option *opt)
Removes an option from the needs list of this subcommand.
void _move_option(Option *opt, App *app)
function that could be used by subclasses of App to shift options around into subcommands
int exit(const Error &e, std::ostream &out=std::cout, std::ostream &err=std::cerr) const
Print a nice error message and return the exit code.
CLI11_NODISCARD bool get_positionals_at_end() const
Check the status of the allow windows style options.
Definition: App.hpp:1045
std::vector< const App * > get_subcommands(const std::function< bool(const App *)> &filter) const
Option * get_version_ptr()
Get a pointer to the version option.
Definition: App.hpp:1117
CLI11_NODISCARD std::size_t get_require_option_min() const
Get the required min option value.
Definition: App.hpp:1065
std::size_t require_option_max_
Max number of options allowed. 0 is unlimited (not inheritable)
Definition: App.hpp:261
CLI11_NODISCARD App * get_subcommand(int index=0) const
Get a pointer to subcommand by index.
CLI11_NODISCARD bool get_disabled() const
Get the status of disabled.
Definition: App.hpp:1080
Option * add_flag_callback(std::string flag_name, std::function< void(void)> function, std::string flag_description="")
Add option for callback that is triggered with a true flag and takes no arguments.
CLI11_NODISCARD bool get_allow_windows_style_options() const
Check the status of the allow windows style options.
Definition: App.hpp:1042
std::vector< const Option * > get_options(const std::function< bool(const Option *)> filter={}) const
Get the list of options (user facing function, so returns raw pointers), has optional filter function...
CLI11_NODISCARD detail::Classifier _recognize(const std::string &current, bool ignore_used_subcommands=true) const
Selects a Classifier enum based on the type of the current argument.
std::vector< std::string > aliases_
Alias names for the subcommand.
Definition: App.hpp:270
void _parse_stream(std::istream &input)
Internal function to parse a stream.
CLI11_NODISCARD bool parsed() const
Check to see if this subcommand was parsed, true only if received on command line.
Definition: App.hpp:473
std::set< App * > exclude_subcommands_
this is a list of subcommands that are exclusionary to this one
Definition: App.hpp:189
CLI11_NODISCARD bool get_disabled_by_default() const
Get the status of disabled by default.
Definition: App.hpp:1089
Option * add_flag(std::string flag_name, std::vector< T > &flag_results, std::string flag_description="")
Vector version to capture multiple flags.
Definition: App.hpp:636
CLI11_NODISCARD std::size_t count() const
Definition: App.hpp:732
bool ignore_case_
If true, the program name is not case sensitive INHERITABLE.
Definition: App.hpp:211
CLI11_NODISCARD const std::string & get_group() const
Get the group of this subcommand.
Definition: App.hpp:1051
Option * set_config(std::string option_name="", std::string default_filename="", const std::string &help_message="Read an ini file", bool config_required=false)
Set a configuration ini file option, or clear it if no name passed.
bool silent_
Definition: App.hpp:246
CLI11_NODISCARD const App * get_parent() const
Get the parent of this subcommand (or nullptr if main app) (const version)
Definition: App.hpp:1126
std::function< void(std::size_t)> pre_parse_callback_
This is a function that runs prior to the start of parsing.
Definition: App.hpp:128
App * final_callback(std::function< void()> app_callback)
Definition: App.hpp:320
std::string group_
The group membership INHERITABLE.
Definition: App.hpp:267
CLI11_NODISCARD std::size_t remaining_size(bool recurse=false) const
This returns the number of remaining options, minus the – separator.
bool pre_parse_called_
Flag indicating that the pre_parse_callback has been triggered.
Definition: App.hpp:121
App * validate_positionals(bool validate=true)
Set the subcommand to validate positional arguments before assigning.
Definition: App.hpp:395
Option * help_ptr_
A pointer to the help flag if there is one INHERITABLE.
Definition: App.hpp:157
App * footer(std::function< std::string()> footer_function)
Set footer.
Definition: App.hpp:951
App * excludes(Option *opt)
Sets excluded options for the subcommand.
Definition: App.hpp:887
App * ignore_underscore(bool value=true)
Ignore underscore. Subcommands inherit value.
CLI11_NODISCARD std::shared_ptr< Config > get_config_formatter() const
Access the config formatter.
Definition: App.hpp:975
void _configure()
CLI11_NODISCARD std::vector< App * > get_subcommands() const
Definition: App.hpp:865
bool remove_subcommand(App *subcom)
Removes a subcommand from the App. Takes a subcommand pointer. Returns true if found and removed.
App * get_subcommand(const App *subcom) const
bool got_subcommand(const App *subcom) const
Check to see if given subcommand was selected.
Definition: App.hpp:876
CLI11_NODISCARD config_extras_mode get_allow_config_extras() const
Get the status of allow extras.
Definition: App.hpp:1099
CLI11_NODISCARD bool _has_remaining_positionals() const
Count the required remaining positional arguments.
App * positionals_at_end(bool value=true)
Specify that the positional arguments are only at the end of the sequence.
Definition: App.hpp:440
CLI11_NODISCARD std::string help(std::string prev="", AppFormatMode mode=AppFormatMode::Normal) const
bool fallthrough_
Allow subcommand fallthrough, so that parent commands can collect commands after subcommand....
Definition: App.hpp:217
std::set< Option * > need_options_
Definition: App.hpp:201
CLI11_NODISCARD bool get_validate_optional_arguments() const
Get the status of validating optional vector arguments.
Definition: App.hpp:1096
App * alias(std::string app_name)
Set an alias for the app.
CLI11_NODISCARD bool get_silent() const
Get the status of silence.
Definition: App.hpp:1083
std::set< App * > need_subcommands_
Definition: App.hpp:197
App * validate_optional_arguments(bool validate=true)
Set the subcommand to validate optional vector arguments before assigning.
Definition: App.hpp:401
bool prefix_command_
If true, return immediately on an unrecognized option (implies allow_extras) INHERITABLE.
Definition: App.hpp:109
void _process_callbacks()
Process callbacks. Runs on all subcommands.
App * formatter(std::shared_ptr< FormatterBase > fmt)
Set the help formatter.
Definition: App.hpp:455
std::vector< Option * > parse_order_
This is a list of pointers to options with the original parse order.
Definition: App.hpp:183
Option * add_option(std::string option_name, T &option_description)
Add option with description but with no variable assignment or callback.
Definition: App.hpp:577
void _trigger_pre_parse(std::size_t remaining_args)
Trigger the pre_parse callback if needed.
CLI11_NODISCARD const std::vector< Option * > & parse_order() const
This gets a vector of pointers with the original parse order.
Definition: App.hpp:1150
bool validate_positionals_
If set to true positional options are validated before assigning INHERITABLE.
Definition: App.hpp:239
void _validate() const
startup_mode default_startup
Definition: App.hpp:233
App * allow_config_extras(config_extras_mode mode)
ignore extras in config files
Definition: App.hpp:418
Option * add_flag(std::string flag_name, T &flag_result, std::string flag_description="")
Definition: App.hpp:621
void increment_parsed()
Internal function to recursively increment the parsed counter on the current app as well unnamed subc...
bool allow_extras_
If true, allow extra arguments (ie, don't throw an error). INHERITABLE.
Definition: App.hpp:102
CLI11_NODISCARD std::string get_description() const
Get the app or subcommand description.
Definition: App.hpp:988
App & operator=(const App &)=delete
App * require_option(std::size_t min, std::size_t max)
Definition: App.hpp:796
App * immediate_callback(bool immediate=true)
Set the subcommand callback to be executed immediately on subcommand completion.
std::vector< Option * > get_options(const std::function< bool(Option *)> filter={})
Non-const version of the above.
CLI11_NODISCARD std::size_t get_require_subcommand_min() const
Get the required min subcommand value.
Definition: App.hpp:1059
Option * add_flag_function(std::string flag_name, std::function< void(std::int64_t)> function, std::string flag_description="")
Add option for callback with an integer value.
CLI11_NODISCARD const Option * get_config_ptr() const
Get a pointer to the config option. (const)
Definition: App.hpp:1114
bool _parse_subcommand(std::vector< std::string > &args)
void _parse_config(const std::vector< ConfigItem > &args)
CLI11_NODISCARD const std::string & _compare_subcommand_names(const App &subcom, const App &base) const
Helper function to run through all possible comparisons of subcommand names to check there is no over...
CLI11_NODISCARD const std::string & get_name() const
Get the name of the current app.
Definition: App.hpp:1129
App * disabled(bool disable=true)
Disable the subcommand or option group.
Definition: App.hpp:358
App * callback(std::function< void()> app_callback)
Definition: App.hpp:309
std::shared_ptr< FormatterBase > formatter_
This is the formatter for help printing. Default provided. INHERITABLE (same pointer)
Definition: App.hpp:166
App * needs(App *app)
Definition: App.hpp:919
App * require_subcommand(std::size_t min, std::size_t max)
Definition: App.hpp:767
CLI11_NODISCARD const Option * get_option(std::string option_name) const
Get an option by name.
Definition: App.hpp:1009
bool allow_windows_style_options_
Allow '/' for options for Windows like options. Defaults to true on Windows, false otherwise....
Definition: App.hpp:220
void _move_to_missing(detail::Classifier val_type, const std::string &val)
Helper function to place extra values in the most appropriate position.
std::shared_ptr< Config > config_formatter_
This is the formatter for help printing. Default provided. INHERITABLE (same pointer)
Definition: App.hpp:280
All errors derive from this one.
Definition: Error.hpp:71
Definition: FormatterFwd.hpp:118
Thrown when an option is set to conflicting values (non-vector and multi args, for example)
Definition: Error.hpp:94
CRTP * always_capture_default(bool value=true)
Definition: Option.hpp:104
Definition: Option.hpp:191
Thrown when counting a non-existent option.
Definition: Error.hpp:343
Extension of App to better manage groups of options.
Definition: App.hpp:1283
App * add_subcommand(App *subcom)
Add an existing subcommand to be a member of an option_group.
Definition: App.hpp:1308
Option * add_option(Option *opt)
Add an existing option to the Option_group.
Definition: App.hpp:1292
Option_group(std::string group_description, std::string group_name, App *parent)
Definition: App.hpp:1285
void add_options(Option *opt, Args... args)
Add a bunch of options to the group.
Definition: App.hpp:1302
void add_options(Option *opt)
Add an existing option to the Option_group.
Definition: App.hpp:1300
Definition: Option.hpp:228
Option * type_name(std::string typeval)
Set a custom option typestring.
Definition: Option.hpp:721
Option * multi_option_policy(MultiOptionPolicy value=MultiOptionPolicy::Throw)
Take the last argument if given multiple times (or another policy)
Option * expected(int value)
Set the number of expected arguments.
CLI11_NODISCARD std::size_t count() const
Count the total number of times an option was passed.
Definition: Option.hpp:354
Option * run_callback_for_default(bool value=true)
Definition: Option.hpp:404
Option * type_size(int option_type_size)
Set a custom option size.
Option * default_str(std::string val)
Set the default value string representation (does not change the contained value)
Definition: Option.hpp:750
Option * force_callback(bool value=true)
Set the value of force_callback.
Definition: Option.hpp:395
std::string help(const App *app, const Error &e)
Printout the full help string on error (if this fn is set, the old default for CLI11)
std::string simple(const App *app, const Error &e)
Printout a clean, simple message on error (the default in CLI11 1.5+)
constexpr enabler dummy
An instance to use in EnableIf.
Definition: TypeTools.hpp:34
Option * default_flag_modifiers(Option *opt)
helper functions for adding in appropriate flag modifiers for add_flag
Definition: App.hpp:68
Classifier
Definition: App.hpp:47
bool valid_alias_name_string(const std::string &str)
Verify an app name.
Definition: StringTools.hpp:157
enabler
Simple empty scoped class.
Definition: TypeTools.hpp:31
bool lexical_cast(const std::string &input, T &output)
Integer conversion.
Definition: TypeTools.hpp:884
Definition: App.hpp:34
typename std::enable_if< B, T >::type enable_if_t
Definition: TypeTools.hpp:42
CLI11_INLINE void deprecate_option(Option *opt, const std::string &replacement="")
Helper function to mark an option as deprecated.
ConfigBase ConfigTOML
the default Config is the TOML file format
Definition: ConfigFwd.hpp:170
config_extras_mode
enumeration of modes of how to deal with extras in config files
Definition: App.hpp:58
std::vector< std::string > results_t
Definition: Option.hpp:29
CLI11_INLINE void retire_option(App *app, Option *opt)
Helper function to mark an option as retired.
AppFormatMode
Definition: FormatterFwd.hpp:30
@ Normal
The normal, detailed help.
@ TakeAll
just get all the passed argument regardless
@ Sum
sum all the arguments together if numerical or concatenate directly without delimiter
CLI11_INLINE void TriggerOff(App *trigger_app, App *app_to_enable)
Helper function to disable one option group/subcommand when another is used.
std::function< bool(const results_t &)> callback_t
callback function definition
Definition: Option.hpp:31
std::shared_ptr< App > App_p
Definition: App.hpp:62
CLI11_INLINE void TriggerOn(App *trigger_app, App *app_to_enable)
Helper function to enable one option group/subcommand when another is used.
Holds values to load into Options.
Definition: ConfigFwd.hpp:26
This class is simply to allow tests access to App's protected functions.
Definition: App.hpp:1367
static auto parse_subcommand(App *app, Args &&...args) -> typename std::result_of< decltype(&App::_parse_subcommand)(App, Args...)>::type
Wrap _parse_subcommand, perfectly forward arguments and return.
Definition: App.hpp:1389
static App * get_fallthrough_parent(App *app)
Wrap the fallthrough parent function to make sure that is working correctly.
Definition: App.hpp:1395
static auto parse_arg(App *app, Args &&...args) -> typename std::result_of< decltype(&App::_parse_arg)(App, Args...)>::type
Wrap _parse_short, perfectly forward arguments and return.
Definition: App.hpp:1382
This will only trigger for actual void type.
Definition: TypeTools.hpp:394