54 std::string
group_ = std::string(
"Options");
81 template <
typename T>
void copy_to(T *other)
const {
97 CRTP *
group(
const std::string &name) {
102 return static_cast<CRTP *
>(
this);
108 return static_cast<CRTP *
>(
this);
116 return static_cast<CRTP *
>(
this);
152 auto self =
static_cast<CRTP *
>(
this);
159 auto self =
static_cast<CRTP *
>(
this);
166 auto self =
static_cast<CRTP *
>(
this);
173 auto self =
static_cast<CRTP *
>(
this);
180 auto self =
static_cast<CRTP *
>(
this);
181 self->delimiter_ = delim;
189 return static_cast<CRTP *
>(
this);
195 return static_cast<CRTP *
>(
this);
280 std::function<std::string()>
type_name_{[]() {
return std::string(); }};
407 value_min = -value_min;
413 if(value_max < value_min) {
460 if(!validator_name.empty())
467 std::string Validator_description =
"",
468 std::string Validator_name =
"") {
469 validators_.emplace_back(
Validator, std::move(Validator_description), std::move(Validator_name));
477 if(!Validator_name.empty())
484 std::string transform_description =
"",
485 std::string transform_name =
"") {
488 [func](std::string &val) {
490 return std::string{};
492 std::move(transform_description),
493 std::move(transform_name)));
501 [func](std::string &inout) {
503 return std::string{};
515 if((Validator_name.empty()) && (!
validators_.empty())) {
518 throw OptionNotFound(std::string{
"Validator "} + Validator_name +
" Not Found");
524 if(index >= 0 && index <
static_cast<int>(
validators_.size())) {
540 auto opt =
static_cast<T *
>(
parent_)->get_option_no_throw(opt_name);
542 throw IncorrectConstruction::MissingOption(opt_name);
548 template <
typename A,
typename B,
typename... ARG>
Option *
needs(A opt, B opt1, ARG... args) {
550 return needs(opt1, args...);
555 auto iterator = std::find(std::begin(
needs_), std::end(
needs_), opt);
557 if(iterator == std::end(
needs_)) {
582 auto opt =
static_cast<T *
>(
parent_)->get_option_no_throw(opt_name);
584 throw IncorrectConstruction::MissingOption(opt_name);
590 template <
typename A,
typename B,
typename... ARG>
Option *
excludes(A opt, B opt1, ARG... args) {
619 auto *parent =
static_cast<T *
>(
parent_);
620 for(
const Option_p &opt : parent->options_) {
621 if(opt.get() ==
this) {
624 auto &omatch = opt->matching_name(*
this);
625 if(!omatch.empty()) {
644 auto *parent =
static_cast<T *
>(
parent_);
645 for(
const Option_p &opt : parent->options_) {
646 if(opt.get() ==
this) {
649 auto &omatch = opt->matching_name(*
this);
650 if(!omatch.empty()) {
652 throw OptionAlreadyAdded(
"adding ignore underscore caused a name conflict with " + omatch);
784 bool all_options =
false
791 std::vector<std::string> name_list;
795 name_list.push_back(
pname_);
798 for(
const std::string &sname :
snames_) {
799 name_list.push_back(
"-" + sname);
805 for(
const std::string &lname :
lnames_) {
806 name_list.push_back(
"--" + lname);
812 for(
const std::string &sname :
snames_)
813 name_list.push_back(
"-" + sname);
815 for(
const std::string &lname :
lnames_)
816 name_list.push_back(
"--" + lname);
828 return std::string(2,
'-') +
lnames_[0];
832 return std::string(1,
'-') +
snames_[0];
862 bool local_result =
callback_(send_results);
871 static const std::string estring;
872 for(
const std::string &sname :
snames_)
875 for(
const std::string &lname :
lnames_)
881 for(
const std::string &sname : other.
snames_)
884 for(
const std::string &lname : other.
lnames_)
896 if(name.length() > 2 && name[0] ==
'-' && name[1] ==
'-')
898 if(name.length() > 1 && name.front() ==
'-')
901 std::string local_pname =
pname_;
902 std::string local_name = name;
911 if(local_name == local_pname) {
943 std::string
get_flag_value(
const std::string &name, std::string input_value)
const {
944 static const std::string trueString{
"true"};
945 static const std::string falseString{
"false"};
946 static const std::string emptyString{
"{}"};
949 if(!((input_value.empty()) || (input_value == emptyString))) {
951 if(default_ind >= 0) {
954 throw(ArgumentMismatch::FlagOverride(name));
957 if(input_value != trueString) {
958 throw(ArgumentMismatch::FlagOverride(name));
964 if((input_value.empty()) || (input_value == emptyString)) {
977 return (val == 1) ? falseString : (val == (-1) ? trueString : std::to_string(-val));
978 }
catch(
const std::invalid_argument &) {
988 _add_result(std::move(s),
results_);
995 results_added = _add_result(std::move(s),
results_);
1003 for(
auto &str : s) {
1004 _add_result(std::move(str),
results_);
1018 _validate_results(res);
1022 _reduce_results(extra, res);
1023 if(!extra.empty()) {
1024 res = std::move(extra);
1032 template <
typename T>
void results(T &output)
const {
1036 retval = detail::lexical_conversion<T, T>(res, output);
1043 _validate_results(res);
1045 _reduce_results(extra, res);
1046 if(!extra.empty()) {
1047 res = std::move(extra);
1055 retval = detail::lexical_conversion<T, T>(res, output);
1063 template <
typename T> T
as()
const {
1090 if(option_type_size < 0) {
1109 if(option_type_size_min < 0 || option_type_size_max < 0) {
1112 option_type_size_min = (std::abs)(option_type_size_min);
1113 option_type_size_max = (std::abs)(option_type_size_max);
1116 if(option_type_size_min > option_type_size_max) {
1189 if(!vtype.empty()) {
1190 full_type_name +=
":" + vtype;
1194 return full_type_name;
1199 void _validate_results(
results_t &res)
const {
1210 for(std::string &result : res) {
1215 auto err_msg = _validate(result, (index >= 0) ? (index %
type_size_max_) : index);
1216 if(!err_msg.empty())
1227 for(std::string &result : res) {
1228 auto err_msg = _validate(result, index);
1230 if(!err_msg.empty())
1252 std::size_t trim_size = std::min<std::size_t>(
1254 if(original.size() != trim_size) {
1255 res.assign(original.end() -
static_cast<results_t::difference_type
>(trim_size), original.end());
1259 std::size_t trim_size = std::min<std::size_t>(
1261 if(original.size() != trim_size) {
1262 res.assign(original.begin(), original.begin() +
static_cast<results_t::difference_type
>(trim_size));
1271 res.push_back(detail::sum_string_vector(original));
1283 if(original.size() < num_min) {
1284 throw ArgumentMismatch::AtLeast(
get_name(),
static_cast<int>(num_min), original.size());
1286 if(original.size() > num_max) {
1287 throw ArgumentMismatch::AtMost(
get_name(),
static_cast<int>(num_max), original.size());
1296 res.push_back(
"{}");
1297 res.push_back(
"%%");
1300 res.push_back(
"%%");
1305 std::string _validate(std::string &result,
int index)
const {
1306 std::string err_msg;
1312 auto v = vali.get_application_index();
1313 if(v == -1 || v == index) {
1315 err_msg = vali(result);
1317 err_msg = err.what();
1319 if(!err_msg.empty())
1328 int _add_result(std::string &&result, std::vector<std::string> &res)
const {
1329 int result_count = 0;
1331 result.back() ==
']') {
1336 result_count += _add_result(std::move(var), res);
1339 return result_count;
1342 res.push_back(std::move(result));
1345 if((result.find_first_of(
delimiter_) != std::string::npos)) {
1353 res.push_back(std::move(result));
1357 return result_count;
Creates a command line program, with very few defaults.
Definition App.hpp:85
All errors derive from this one.
Definition Error.hpp:70
bool get_disable_flag_override() const
The status of configurable.
Definition Option.hpp:137
CRTP * mandatory(bool value=true)
Support Plumbum term.
Definition Option.hpp:112
CRTP * take_all()
Set the multi option policy to take all arguments.
Definition Option.hpp:165
bool get_ignore_case() const
The status of ignore case.
Definition Option.hpp:128
bool get_configurable() const
The status of configurable.
Definition Option.hpp:134
CRTP * group(const std::string &name)
Changes the group membership.
Definition Option.hpp:97
CRTP * join()
Set the multi option policy to join.
Definition Option.hpp:172
bool always_capture_default_
Automatically capture default value.
Definition Option.hpp:75
MultiOptionPolicy multi_option_policy_
Policy for handling multiple arguments beyond the expected Max.
Definition Option.hpp:78
CRTP * join(char delim)
Set the multi option policy to join with a specific delimiter.
Definition Option.hpp:179
bool get_ignore_underscore() const
The status of ignore_underscore.
Definition Option.hpp:131
CRTP * take_first()
Set the multi option policy to take last.
Definition Option.hpp:158
bool ignore_case_
Ignore the case when matching (option, not value)
Definition Option.hpp:60
CRTP * configurable(bool value=true)
Allow in a configuration file.
Definition Option.hpp:187
CRTP * delimiter(char value='\0')
Allow in a configuration file.
Definition Option.hpp:193
MultiOptionPolicy get_multi_option_policy() const
The status of the multi option policy.
Definition Option.hpp:146
bool configurable_
Allow this option to be given in a configuration file.
Definition Option.hpp:66
bool get_required() const
True if this is a required option.
Definition Option.hpp:125
bool disable_flag_override_
Disable overriding flag values with '=value'.
Definition Option.hpp:69
bool required_
True if this is a required option.
Definition Option.hpp:57
CRTP * take_last()
Set the multi option policy to take last.
Definition Option.hpp:151
char delimiter_
Specify a delimiter character for vector arguments.
Definition Option.hpp:72
CRTP * always_capture_default(bool value=true)
Definition Option.hpp:114
bool get_always_capture_default() const
Return true if this will automatically capture the default value for help printing.
Definition Option.hpp:143
std::string group_
The group membership.
Definition Option.hpp:54
char get_delimiter() const
Get the current delimiter char.
Definition Option.hpp:140
const std::string & get_group() const
Get the group of this option.
Definition Option.hpp:122
bool ignore_underscore_
Ignore underscores when matching (option, not value)
Definition Option.hpp:63
void copy_to(T *other) const
Copy the contents to another similar class (one based on OptionBase)
Definition Option.hpp:81
CRTP * required(bool value=true)
Set the option as required.
Definition Option.hpp:106
Definition Option.hpp:201
OptionDefaults * multi_option_policy(MultiOptionPolicy value=MultiOptionPolicy::Throw)
Take the last argument if given multiple times.
Definition Option.hpp:208
OptionDefaults * ignore_case(bool value=true)
Ignore the case of the option name.
Definition Option.hpp:214
OptionDefaults * ignore_underscore(bool value=true)
Ignore underscores in the option name.
Definition Option.hpp:220
OptionDefaults * delimiter(char value='\0')
set a delimiter character to split up single arguments to treat as multiple inputs
Definition Option.hpp:232
OptionDefaults * disable_flag_override(bool value=true)
Disable overriding flag values with an '=' segment.
Definition Option.hpp:226
Definition Option.hpp:238
const std::string & get_option_text() const
Definition Option.hpp:773
const std::vector< std::string > & get_lnames() const
Get the long names.
Definition Option.hpp:711
int get_type_size_max() const
The maximum number of arguments the option expects.
Definition Option.hpp:690
std::size_t count() const
Count the total number of times an option was passed.
Definition Option.hpp:364
std::string default_str_
A human readable default value, either manually set, captured, or captured by default.
Definition Option.hpp:272
bool run_callback_for_default_
Control option to run the callback to set the default.
Definition Option.hpp:341
int get_expected_min() const
The number of times the option expects to be included.
Definition Option.hpp:735
Option * excludes(Option *opt)
Sets excluded options.
Definition Option.hpp:565
bool get_run_callback_for_default() const
Get the current value of run_callback_for_default.
Definition Option.hpp:454
Option * type_name(std::string typeval)
Set a custom option typestring.
Definition Option.hpp:1083
std::function< std::string()> type_name_
Definition Option.hpp:280
int get_expected_max() const
The max number of times the option expects to be included.
Definition Option.hpp:737
option_state
enumeration for the option state machine
Definition Option.hpp:328
@ reduced
a subset of results has been generated
@ callback_run
the callback has been executed
@ validated
the results have been validated
@ parsing
The option is currently collecting parsed results.
option_state current_option_state_
Whether the callback has run (needed for INI parsing)
Definition Option.hpp:335
std::string option_text_
If given, replace the text that describes the option type and usage in the help text.
Definition Option.hpp:275
int type_size_min_
The minimum number of arguments an option should be expecting.
Definition Option.hpp:293
bool get_trigger_on_parse() const
The status of trigger on parse.
Definition Option.hpp:437
int get_expected() const
The number of times the option expects to be included.
Definition Option.hpp:732
const results_t & results() const
Get the current complete results set.
Definition Option.hpp:1010
std::string pname_
A positional name.
Definition Option.hpp:259
results_t reduced_results() const
Get a copy of the results.
Definition Option.hpp:1013
int expected_min_
The minimum number of expected values.
Definition Option.hpp:296
Option(std::string option_name, std::string option_description, callback_t callback, App *parent)
Making an option by hand is not defined, it must be made by the App class.
Definition Option.hpp:351
Option * expected(int value_min, int value_max)
Set the range of expected arguments.
Definition Option.hpp:405
int get_type_size_min() const
The minimum number of arguments the option expects.
Definition Option.hpp:688
Option * ignore_case(bool value=true)
Definition Option.hpp:616
std::string get_default_str() const
The default value (for help printing)
Definition Option.hpp:705
std::set< Option * > needs_
A list of options that are required with this option.
Definition Option.hpp:304
Option * default_function(const std::function< std::string()> &func)
Set a capture function for the default. Mostly used by App.
Definition Option.hpp:1136
bool remove_excludes(Option *opt)
Remove needs link from an option. Returns true if the option really was in the needs list.
Definition Option.hpp:596
Option * multi_option_policy(MultiOptionPolicy value=MultiOptionPolicy::Throw)
Take the last argument if given multiple times (or another policy)
Definition Option.hpp:662
bool trigger_on_result_
flag indicating that the option should trigger the validation and callback chain on each result when ...
Definition Option.hpp:345
bool flag_like_
Specify that the option should act like a flag vs regular option.
Definition Option.hpp:339
bool check_lname(std::string name) const
Requires "--" to be removed from string.
Definition Option.hpp:929
Option * add_result(std::string s)
Puts a result at the end.
Definition Option.hpp:987
std::set< Option * > excludes_
A list of options that are excluded with this option.
Definition Option.hpp:307
bool force_callback_
flag indicating that the option should force the callback regardless if any results present
Definition Option.hpp:347
Option & operator=(const Option &)=delete
bool check_fname(std::string name) const
Requires "--" to be removed from string.
Definition Option.hpp:934
std::string get_flag_value(const std::string &name, std::string input_value) const
Definition Option.hpp:943
const std::vector< std::string > & get_fnames() const
Get the flag names with specified default values.
Definition Option.hpp:717
std::vector< std::string > fnames_
a list of flag names with specified default values;
Definition Option.hpp:256
Option * each(const std::function< void(std::string)> &func)
Adds a user supplied function to run on each item passed in (communicate though lambda capture)
Definition Option.hpp:499
Validator * get_validator(const std::string &Validator_name="")
Get a named Validator.
Definition Option.hpp:509
Option * option_text(std::string text)
Definition Option.hpp:768
Option * check(std::function< std::string(const std::string &)> Validator, std::string Validator_description="", std::string Validator_name="")
Adds a Validator. Takes a const string& and returns an error message (empty if conversion/check is ok...
Definition Option.hpp:466
const std::string & get_description() const
Get the description.
Definition Option.hpp:760
Option * expected(int value)
Set the number of expected arguments.
Definition Option.hpp:383
bool has_description() const
True if option has description.
Definition Option.hpp:757
bool check_name(const std::string &name) const
Check a name. Requires "-" or "--" for short / long, supports positional name.
Definition Option.hpp:894
Option(const Option &)=delete
bool get_force_callback() const
The status of force_callback.
Definition Option.hpp:445
bool get_allow_extra_args() const
Get the current value of allow extra args.
Definition Option.hpp:430
Option * disable_flag_override(bool value=true)
Disable flag overrides values, e.g. –flag=is not allowed.
Definition Option.hpp:676
std::vector< std::string > snames_
A list of the short names (-a) without the leading dashes.
Definition Option.hpp:246
results_t proc_results_
results after reduction
Definition Option.hpp:326
Option * run_callback_for_default(bool value=true)
Definition Option.hpp:449
Option * type_size(int option_type_size_min, int option_type_size_max)
Set a custom option type size range.
Definition Option.hpp:1108
void inject_separator(bool value=true)
Set the value of the separator injection flag.
Definition Option.hpp:1133
Option * allow_extra_args(bool value=true)
Definition Option.hpp:425
std::set< Option * > get_excludes() const
The set of options excluded.
Definition Option.hpp:702
Option * trigger_on_parse(bool value=true)
Set the value of trigger_on_parse which specifies that the option callback should be triggered on eve...
Definition Option.hpp:432
int get_type_size() const
The number of arguments the option expects.
Definition Option.hpp:685
Option * type_size(int option_type_size)
Set a custom option size.
Definition Option.hpp:1089
callback_t get_callback() const
Get the callback function.
Definition Option.hpp:708
std::string get_type_name() const
Get the full typename for this option.
Definition Option.hpp:1184
App * parent_
link back up to the parent App for fallthrough
Definition Option.hpp:314
bool nonpositional() const
True if option has at least one non-positional name.
Definition Option.hpp:754
int expected_max_
The maximum number of expected values.
Definition Option.hpp:298
std::string get_envname() const
The environment variable associated to this value.
Definition Option.hpp:696
int get_items_expected_max() const
Get the maximum number of items expected to be returned and used for the callback.
Definition Option.hpp:743
Option * transform(const std::function< std::string(std::string)> &func, std::string transform_description="", std::string transform_name="")
Adds a Validator-like function that can change result.
Definition Option.hpp:483
Option * excludes(std::string opt_name)
Can find a string if needed.
Definition Option.hpp:581
int get_inject_separator() const
Return the inject_separator flag.
Definition Option.hpp:693
std::string description_
The description for help strings.
Definition Option.hpp:269
bool inject_separator_
flag indicating a separator needs to be injected after each argument call
Definition Option.hpp:343
bool remove_needs(Option *opt)
Remove needs link from an option. Returns true if the option really was in the needs list.
Definition Option.hpp:554
bool get_callback_run() const
See if the callback has been run already.
Definition Option.hpp:1070
T as() const
Return the results as the specified type.
Definition Option.hpp:1063
void run_callback()
Process the callback.
Definition Option.hpp:843
Option * transform(Validator Validator, const std::string &Validator_name="")
Adds a transforming Validator with a built in type name.
Definition Option.hpp:475
callback_t callback_
Options store a callback to do all the work.
Definition Option.hpp:317
std::string get_name(bool positional=false, bool all_options=false) const
Gets a comma separated list of names. Will include / prefer the positional name if positional is true...
Definition Option.hpp:783
void clear()
Clear the parsed results (mostly for testing)
Definition Option.hpp:373
Option * add_result(std::vector< std::string > s)
Puts a result at the end.
Definition Option.hpp:1001
Option * capture_default_str()
Capture the default value from the original value (if it can be captured)
Definition Option.hpp:1142
void results(T &output) const
Get the results as a specified type.
Definition Option.hpp:1032
Option * default_str(std::string val)
Set the default value string representation (does not change the contained value)
Definition Option.hpp:1150
bool get_positional() const
True if the argument can be given directly.
Definition Option.hpp:751
std::string envname_
If given, check the environment for this option.
Definition Option.hpp:262
std::function< std::string()> default_function_
Run this function to capture a default (ignore if empty)
Definition Option.hpp:283
std::set< Option * > get_needs() const
The set of options needed.
Definition Option.hpp:699
bool check_sname(std::string name) const
Requires "-" to be removed from string.
Definition Option.hpp:924
Option * ignore_underscore(bool value=true)
Definition Option.hpp:640
std::vector< std::pair< std::string, std::string > > default_flag_values_
Definition Option.hpp:253
std::vector< Validator > validators_
A list of Validators to run on each value parsed.
Definition Option.hpp:301
Option * envname(std::string name)
Sets environment variable to read if no option given.
Definition Option.hpp:607
Option * type_name_fn(std::function< std::string()> typefun)
Set the type function to run when displayed on this option.
Definition Option.hpp:1077
Option * default_val(const X &val)
Definition Option.hpp:1157
Option * add_result(std::string s, int &results_added)
Puts a result at the end and get a count of the number of arguments actually added.
Definition Option.hpp:994
const std::string & get_single_name() const
Get a single name for the option, first of lname, pname, sname, envname.
Definition Option.hpp:719
Option * needs(Option *opt)
Sets required options.
Definition Option.hpp:531
const std::string & matching_name(const Option &other) const
If options share any of the same names, find it.
Definition Option.hpp:870
int type_size_max_
Definition Option.hpp:291
Option * needs(A opt, B opt1, ARG... args)
Any number supported, any mix of string and Opt.
Definition Option.hpp:548
bool allow_extra_args_
Specify that extra args beyond type_size_max should be allowed.
Definition Option.hpp:337
Option * description(std::string option_description)
Set the description.
Definition Option.hpp:763
std::vector< std::string > lnames_
A list of the long names (--long) without the leading dashes.
Definition Option.hpp:249
Option * force_callback(bool value=true)
Set the value of force_callback.
Definition Option.hpp:440
Validator * get_validator(int index)
Get a Validator by index NOTE: this may not be the order of definition.
Definition Option.hpp:522
bool operator==(const Option &other) const
If options share any of the same names, they are equal (not counting positional)
Definition Option.hpp:891
Option * check(Validator validator, const std::string &validator_name="")
Adds a Validator with a built in type name.
Definition Option.hpp:457
Option * needs(std::string opt_name)
Can find a string if needed.
Definition Option.hpp:539
results_t results_
complete Results of parsing
Definition Option.hpp:324
bool empty() const
True if the option was not passed.
Definition Option.hpp:367
int get_items_expected_min() const
The total min number of expected string values to be used.
Definition Option.hpp:740
Option * excludes(A opt, B opt1, ARG... args)
Any number supported, any mix of string and Opt.
Definition Option.hpp:590
const std::vector< std::string > & get_snames() const
Get the short names.
Definition Option.hpp:714
int get_items_expected() const
The total min number of expected string values to be used.
Definition Option.hpp:748
Some validators that are provided.
Definition Validators.hpp:80
Validator & non_modifying(bool no_modify=true)
Specify whether the Validator can be modifying or not.
Definition Validators.hpp:176
const std::string & get_name() const
Get the name of the Validator.
Definition Validators.hpp:162
std::string get_description() const
Generate type description information for the Validator.
Definition Validators.hpp:144
Validator & name(std::string validator_name)
Specify the type string.
Definition Validators.hpp:151
std::vector< std::string > split_names(std::string current)
Definition Split.hpp:67
auto to_string(T &&value) -> decltype(std::forward< T >(value))
Convert an object to a string (directly forward if this can become a string)
Definition TypeTools.hpp:270
std::tuple< std::vector< std::string >, std::vector< std::string >, std::string > get_names(const std::vector< std::string > &input)
Get a vector of short names, one of long names, and a single name.
Definition Split.hpp:107
std::ptrdiff_t find_member(std::string name, const std::vector< std::string > names, bool ignore_case=false, bool ignore_underscore=false)
Check if a string is a member of a list of strings and optionally ignore case or ignore underscores.
Definition StringTools.hpp:304
std::string remove_underscore(std::string str)
remove underscores from a string
Definition StringTools.hpp:267
bool is_separator(const std::string &str)
check if a string is a container segment separator (empty or "%%")
Definition StringTools.hpp:248
std::enable_if< std::is_integral< T >::value, bool >::type checked_multiply(T &a, T b)
Performs a *= b; if it doesn't cause integer overflow. Returns false otherwise.
Definition Validators.hpp:678
constexpr int expected_max_vector_size
Definition StringTools.hpp:43
std::string join(const T &v, std::string delim=",")
Simple function to join a string.
Definition StringTools.hpp:63
std::vector< std::string > split(const std::string &s, char delim)
Split a string by a delim.
Definition StringTools.hpp:46
bool valid_alias_name_string(const std::string &str)
Verify an app name.
Definition StringTools.hpp:242
std::string to_lower(std::string str)
Return a lower case version of a string.
Definition StringTools.hpp:259
std::int64_t to_flag_value(std::string val)
Convert a flag into an integer value typically binary flags.
Definition TypeTools.hpp:836
MultiOptionPolicy
Enumeration of the multiOption Policy selection.
Definition Option.hpp:38
@ TakeAll
just get all the passed argument regardless
@ TakeFirst
take only the first Expected number of arguments
@ Throw
Throw an error if any extra arguments were given.
@ TakeLast
take only the last Expected number of arguments
@ Sum
sum all the arguments together if numerical or concatenate directly without delimiter
@ Join
merge all the arguments together into a single string via the delimiter character default(' ')
std::function< bool(const results_t &)> callback_t
callback function definition
Definition Option.hpp:31
std::vector< std::string > results_t
Definition Option.hpp:29
std::unique_ptr< Option > Option_p
Definition Option.hpp:36