The Sharg command line parser. More...

#include <sharg/parser.hpp>

Public Member Functions
void	parse ()
	Initiates the actual command line parsing.

parser &	get_sub_parser ()
	Returns a reference to the sub-parser instance if subcommand parsing was enabled.

template<typename id_type > requires std::same_as<id_type, char> \|\| std::constructible_from<std::string, id_type>
bool	is_option_set (id_type const &id) const
	Checks whether the option identifier (`id`) was set on the command line by the user.

Constructors, destructor and assignment
	parser ()=delete
	Deleted.

	parser (parser const &)=delete
	Deleted.

parser &	operator= (parser const &)=delete
	Deleted.

	parser (parser &&)=default
	Defaulted.

parser &	operator= (parser &&)=default
	Defaulted.

	parser (std::string const &app_name, std::vector< std::string > const &arguments, update_notifications version_updates=update_notifications::on, std::vector< std::string > subcommands={})
	Initializes an sharg::parser object from the command line arguments.

	parser (std::string const &app_name, int const argc, char const const const argv, update_notifications version_updates=update_notifications::on, std::vector< std::string > subcommands={})
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

	~parser ()
	The destructor.

Adding options
Add (positional) options and flags to the parser.
template<typename option_type , typename validator_type > requires (parsable<option_type> \|\| parsable<std::ranges::range_value_t<option_type>>) && std::invocable<validator_type, option_type>
void	add_option (option_type &value, config< validator_type > const &config)
	Adds an option to the sharg::parser.

template<typename validator_type > requires std::invocable<validator_type, bool>
void	add_flag (bool &value, config< validator_type > const &config)
	Adds a flag to the sharg::parser.

template<typename option_type , typename validator_type > requires (parsable<option_type> \|\| parsable<std::ranges::range_value_t<option_type>>) && std::invocable<validator_type, option_type>
void	add_positional_option (option_type &value, config< validator_type > const &config)
	Adds a positional option to the sharg::parser.

Structuring the Help Page
void	add_section (std::string const &title, bool const advanced_only=false)
	Adds an help page section to the sharg::parser.

void	add_subsection (std::string const &title, bool const advanced_only=false)
	Adds an help page subsection to the sharg::parser.

void	add_line (std::string const &text, bool is_paragraph=false, bool const advanced_only=false)
	Adds an help page text line to the sharg::parser.

void	add_list_item (std::string const &key, std::string const &desc, bool const advanced_only=false)
	Adds an help page list item (key-value) to the sharg::parser.

void	add_subcommands (std::vector< std::string > const &subcommands)
	Adds subcommands to the parser.

Public Attributes
parser_meta_data	info
	Aggregates all parser related meta data (see sharg::parser_meta_data struct).

Detailed Description

The Sharg command line parser.

The sharg::parser is a general purpose argument parser that provides convenient access to the command line arguments passed to the program. It automatically generates a help page and can export manual-pages as well as HTML documentation.

Terminology

Since the terms option and arguments are frequently used in different contexts we want to first clarify our usage:

options [e.g. -i myfile, --infile myfile] refer to key-value pairs. The key is either a short indentifier, restricted to a single character -i, or a long identifier --infile.
positional options [e.g. arg1] refers to command line arguments that are specified without an identifier/key, are always required and are identified by their position.
flags [e.g. -b] refers to identifiers that are not followed by a value (booleans) and therefore only indicate whether they are set or not.

Add/get options, flags or positional Options

Adding an option is done in a single call. You simply need to provide a predeclared variable and some additional information like the identifier, description or advanced restrictions. To actually retrieve the value from the command line and enable every other mechanism you need to call the sharg::parser::parse function in the end.

// SPDX-FileCopyrightText: 2006-2024 Knut Reinert & Freie Universität Berlin
// SPDX-FileCopyrightText: 2016-2024 Knut Reinert & MPI für molekulare Genetik
// SPDX-License-Identifier: CC0-1.0
 
#include <sharg/all.hpp>
 
int main(int argc, char ** argv)
{
    sharg::parser myparser{"Grade-Average", argc, argv}; // initialize
 
    std::string name{"Max Muster"}; // define default values directly in the variable.
    bool bonus{false};
    std::vector<double> grades{}; // you can also specify a vector that is treated as a list option.
 
    myparser.add_option(name, sharg::config{.short_id = 'n', .long_id = "name", .description = "Your name please."});
    myparser.add_flag(bonus, sharg::config{.short_id = 'b', .long_id = "bonus", .description = "Got a bonus?."});
    myparser.add_positional_option(grades, sharg::config{.description = "Please specify your grades."});
 
    try
    {
        myparser.parse();
    }
    catch (sharg::parser_error const & ext) // the user did something wrong
    {
        std::cerr << "[PARSER ERROR] " << ext.what() << '\n'; // customize your error message
        return -1;
    }
 
    if (bonus)
        grades.push_back(1.0); // extra good grade
 
    double avg{0};
    for (auto g : grades)
        avg += g;
 
    avg = avg / grades.size();
 
    std::cerr << name << " has an average grade of " << avg << '\n';
 
    return 0;
}

Now you can call your application via the command line:

MaxMuster% ./grade_avg_app -n Peter --bonus 1.0 2.0 1.7

Peter has an average grade of 1.425

You can also display the help page automatically:

MaxMuster% ./grade_avg_app --help
Grade-Average
=============
 
POSITIONAL ARGUMENTS
    ARGUMENT-1 List of DOUBLE's
          Please specify your grades.
 
OPTIONS
    -n, --name STRING
          Please specify your name.
    -b, --bonus
          Please specify if you got the bonus.
 
VERSION
    Last update:
    Grade-Average version:
    Sharg version: 0.1.0

The POSIX conventions

The sharg::parser follows the POSIX conventions. Note that this means among others:

Options without arguments can use one hyphen, for example -a -b is equivalent to -ab.
Whitespaces between a short option and its argument are optional. For example, -c foo is equivalent to -cfoo.
-- terminates the options and signals that only positional options follow. This enables the user to use a positional option beginning with - without it being misinterpreted as an option identifier.

Attention: Currently, the sharg::parser is in disagreement with one of the POSIX conventions. It does not interpret a single hyphen character as an ordinary non-option argument that may be used for in-/output from standard streams.

Errors that are caught by the parser

There are two different kinds of errors: Developer errors and user errors.

Developer errors are those that violate the sharg::parser design (e.g. calling the sharg::parser::parse function twice or specifying two different options with the same identifier.) In this case, a sharg::design_error is thrown.

The second kind are user errors, due to invalid command line calls. In this case a sharg::parser_error is thrown.

For example:

MaxMuster% ./grade_avg_app -n Peter 2.0 abc 1.7

[PARSER ERROR] Value cast failed for positional option 2: Argument abc could not be casted to type DOUBLE.

See the sharg::parser::parse documentation for a detailed list of which exceptions are caught.

Update Notifications

SeqAn applications that are using the sharg::parser can check SeqAn servers for version updates. The functionality helps getting new versions out to users faster. It is also used to inform application developers of new versions of the SeqAn library which means that applications ship with less bugs. For privacy implications, please see: https://docs.seqan.de/sharg/main_user/about_update_notifications.html.

Developers that wish to disable this feature permanently can pass an extra constructor argument:

// SPDX-FileCopyrightText: 2006-2024 Knut Reinert & Freie Universität Berlin
// SPDX-FileCopyrightText: 2016-2024 Knut Reinert & MPI für molekulare Genetik
// SPDX-License-Identifier: CC0-1.0
 
#include <sharg/all.hpp>
 
int main(int argc, char ** argv)
{
    sharg::parser myparser{"Game-of-Parsing", argc, argv, sharg::update_notifications::off};
    // disable update notifications permanently ----------------------------^
}

Users of applications that have this feature activated can opt-out, by either:

disabling it for a specific application simply by setting the option --version-check false/0 or
disabling it for all applications by setting the SHARG_NO_VERSION_CHECK environment variable.

Note that in case there is no --version-check option (display available options with -h/--help), then the developer already disabled the version check functionality.

This entity is stable. Since version 1.0.

Constructor & Destructor Documentation

◆ parser()

sharg::parser::parser	(	std::string const &	app_name,
		std::vector< std::string > const &	arguments,
		update_notifications	version_updates = update_notifications::on,
		std::vector< std::string >	subcommands = {} )

inline

Initializes an sharg::parser object from the command line arguments.

Parameters

[in]	app_name	The name of the app that is displayed on the help page.
[in]	arguments	The command line arguments to parse.
[in]	version_updates	Notify users about version updates (default sharg::update_notifications::on).
[in]	subcommands	A list of subcommands (see subcommand parsing ).

The application name must only contain alpha-numeric characters, _ or - , i.e. the following regex must evaluate to true: "^[a-zA-Z0-9_-]+$" .

See the parser tutorial for more information about the version check functionality.

This entity is stable. Since version 1.0.

Member Function Documentation

◆ add_flag()

template<typename validator_type >
requires std::invocable<validator_type, bool>

void sharg::parser::add_flag	(	bool &	value,
		config< validator_type > const &	config )

inline

Adds a flag to the sharg::parser.

Parameters

[in,out]	value	The variable which shows if the flag is turned off (default) or on.
[in]	config	A configuration object to customise the sharg::parser behaviour. See sharg::config.

Exceptions

sharg::design_error	if sharg::parser::parse was already called.
sharg::design_error	if `value` is true.
sharg::design_error	if the option identifier was already used.
sharg::design_error	if the option identifier is not a valid identifier.

This entity is stable. Since version 1.0.

◆ add_line()

void sharg::parser::add_line	(	std::string const &	text,
		bool	is_paragraph = false,
		bool const	advanced_only = false )

inline

Adds an help page text line to the sharg::parser.

Parameters

[in]	text	The text to print.
[in]	is_paragraph	Whether to insert as paragraph or just a line (Default: false).
[in]	advanced_only	If set to true, the section only shows when the user requested the advanced help page.

Exceptions

sharg::design_error if sharg::parser::parse was already called.

If the line is not a paragraph (false), only one line break is appended, otherwise two line breaks are appended. This only affects the help page and other output formats.

This entity is stable. Since version 1.0.

◆ add_list_item()

void sharg::parser::add_list_item	(	std::string const &	key,
		std::string const &	desc,
		bool const	advanced_only = false )

inline

Adds an help page list item (key-value) to the sharg::parser.

Parameters

[in]	key	The key of the key-value pair of the list item.
[in]	desc	The value of the key-value pair of the list item.
[in]	advanced_only	If set to true, the section only shows when the user requested the advanced help page.

Exceptions

sharg::design_error if sharg::parser::parse was already called.

Note: This only affects the help page and other output formats.

A list item is composed of a key (key) and value (desc) and usually used for option identifier-description-pairs. E.g.:

-a, --age LONG

Super important integer for age.

This entity is stable. Since version 1.0.

◆ add_option()

template<typename option_type , typename validator_type >
requires (parsable<option_type> || parsable<std::ranges::range_value_t<option_type>>) && std::invocable<validator_type, option_type>

void sharg::parser::add_option	(	option_type &	value,
		config< validator_type > const &	config )

inline

Adds an option to the sharg::parser.

Template Parameters

option_type	Must have a formatted input function (stream >> value). If option_type is a container, its value type must have the formatted input function (exception: std::string is not regarded as a container). See FormattedInputFunction .
validator_type	The type of validator to be applied to the option value. Must model sharg::validator.

Parameters

[in,out]	value	The variable in which to store the given command line argument.
[in]	config	A configuration object to customise the sharg::parser behaviour. See sharg::config.

The config.validator must be applicable to the given output variable (value).

Exceptions

sharg::design_error	if sharg::parser::parse was already called.
sharg::design_error	if the option is required and has a default_message.
sharg::design_error	if the option identifier was already used.
sharg::design_error	if the option identifier is not a valid identifier.

This entity is stable. Since version 1.0.

◆ add_positional_option()

template<typename option_type , typename validator_type >
requires (parsable<option_type> || parsable<std::ranges::range_value_t<option_type>>) && std::invocable<validator_type, option_type>

void sharg::parser::add_positional_option	(	option_type &	value,
		config< validator_type > const &	config )

inline

Adds a positional option to the sharg::parser.

Template Parameters

option_type	Must have a formatted input function (stream >> value). If option_type is a container, its value type must have the formatted input function (exception: std::string is not regarded as a container). See FormattedInputFunction .
validator_type	The type of validator to be applied to the option value. Must model sharg::validator.

Parameters

[in,out]	value	The variable in which to store the given command line argument.
[in]	config	Customise the sharg::parser behaviour. See sharg::positional_config.

Exceptions

sharg::design_error	if sharg::parser::parse was already called.
sharg::design_error	if the option has a short or long identifier.
sharg::design_error	if the option is advanced or hidden.
sharg::design_error	if the option has a default_message.
sharg::design_error	if there already is a positional list option.
sharg::design_error	if there are subcommands.

The config.validator must be applicable to the given output variable (value).

This entity is stable. Since version 1.0.

◆ add_section()

void sharg::parser::add_section	(	std::string const &	title,
		bool const	advanced_only = false )

inline

Adds an help page section to the sharg::parser.

Parameters

[in]	title	The title of the section.
[in]	advanced_only	If set to true, the section only shows when the user requested the advanced help page.

Exceptions

sharg::design_error if sharg::parser::parse was already called.

This only affects the help page and other output formats.

This entity is stable. Since version 1.0.

◆ add_subcommands()

void sharg::parser::add_subcommands ( std::vector< std::string > const & subcommands )

inline

Adds subcommands to the parser.

Parameters

[in] subcommands A list of subcommands.

Adds subcommands to the current parser. The list of subcommands is sorted and duplicates are removed.

Example

// SPDX-FileCopyrightText: 2006-2024 Knut Reinert & Freie Universität Berlin
// SPDX-FileCopyrightText: 2016-2024 Knut Reinert & MPI für molekulare Genetik
// SPDX-License-Identifier: CC0-1.0
 
#include <sharg/all.hpp>
 
void run(std::vector<std::string> const & arguments)
{
    sharg::parser git_parser{"git", arguments, sharg::update_notifications::off, {"pull", "push"}};
    git_parser.add_subcommands({"remote"});
    git_parser.parse();
 
    sharg::parser & sub_parser = git_parser.get_sub_parser();
 
    if (sub_parser.info.app_name == std::string_view{"git-pull"})
    {
        auto & pull_parser = sub_parser;
        std::string repository{};
        pull_parser.add_positional_option(repository, sharg::config{});
        pull_parser.parse();
    }
    else if (sub_parser.info.app_name == std::string_view{"git-push"})
    {
        auto & push_parser = sub_parser;
        std::string repository{};
        push_parser.add_positional_option(repository, sharg::config{});
        push_parser.parse();
    }
    else if (sub_parser.info.app_name == std::string_view{"git-remote"})
    {
        auto & remote_parser = sub_parser;
        remote_parser.add_subcommands({"set-url", "show"});
        remote_parser.parse();
 
        sharg::parser & recursive_sub_parser = remote_parser.get_sub_parser();
 
        if (recursive_sub_parser.info.app_name == std::string_view{"git-remote-set-url"})
        {
            auto & set_url_parser = recursive_sub_parser;
            std::string repository{};
            set_url_parser.add_positional_option(repository, sharg::config{});
            set_url_parser.parse();
        }
        else if (recursive_sub_parser.info.app_name == std::string_view{"git-remote-show"})
        {
            auto & show_parser = recursive_sub_parser;
            show_parser.parse();
        }
    }
}
 
int main(int argc, char ** argv)
{
    try
    {
        run({argv, argv + argc});
    }
    catch (sharg::parser_error const & ext)
    {
        std::cerr << "[Error] " << ext.what() << '\n';
        std::exit(-1);
    }
 
    return 0;
}

This entity is experimental and subject to change in the future. Experimental since version 1.1.2

◆ add_subsection()

void sharg::parser::add_subsection	(	std::string const &	title,
		bool const	advanced_only = false )

inline

Adds an help page subsection to the sharg::parser.

Parameters

[in]	title	The title of the subsection.
[in]	advanced_only	If set to true, the section only shows when the user requested the advanced help page.

Exceptions

sharg::design_error if sharg::parser::parse was already called.

This only affects the help page and other output formats.

This entity is stable. Since version 1.0.

◆ get_sub_parser()

parser & sharg::parser::get_sub_parser ( )

inline

Returns a reference to the sub-parser instance if subcommand parsing was enabled.

This entity is stable. Since version 1.0.

◆ is_option_set()

template<typename id_type >
requires std::same_as<id_type, char> || std::constructible_from<std::string, id_type>

bool sharg::parser::is_option_set ( id_type const & id ) const

inline

Checks whether the option identifier (id) was set on the command line by the user.

Template Parameters

id_type Either type char or a type that a std::string is constructible from.

Parameters

[in] id The short (char) or long (std::string) option identifier to search for.

Returns: true if option identifier id was set on the command line by the user.

Exceptions

sharg::design_error if the function is used incorrectly (see details below).

You can only ask for option identifiers that were added to the parser beforehand via sharg::parser::add_option. As in the sharg::parser::add_option call, pass short identifiers as a char and long identifiers as a std::string or a type that a std::string is constructible from (e.g. a const char *).

Example

// SPDX-FileCopyrightText: 2006-2024 Knut Reinert & Freie Universität Berlin
// SPDX-FileCopyrightText: 2016-2024 Knut Reinert & MPI für molekulare Genetik
// SPDX-License-Identifier: CC0-1.0
 
#include <sharg/all.hpp>
 
int main(int argc, char ** argv)
{
    sharg::parser myparser{"awesome-app", argc, argv}; // initialize
 
    int a{3};
    myparser.add_option(a, sharg::config{.short_id = 'a', .long_id = "aint", .description = "Specify an integer."});
 
    try
    {
        myparser.parse();
    }
    catch (sharg::parser_error const & ext) // the user did something wrong
    {
        std::cerr << "[PARSER ERROR] " << ext.what() << '\n'; // customize your error message
        return -1;
    }
 
    if (myparser.is_option_set('a'))
        std::cerr << "The user set option -a on the command line.\n";
 
    if (myparser.is_option_set("awesome-parameter"))
        std::cerr << "The user set option --awesome-parameter on the command line.\n";
 
    // Asking for an option identifier that was not used before throws an error:
    // myparser.is_option_set("foo"); // throws sharg::design_error
 
    return 0;
}

Exceptions

This function throws a sharg::design_error if

sharg::parser::parse() was not called before.
a long identifier was passed (e.g. a std::string) that only consists of a single character. If you mean to pass a short identifier, please pass it as a char not a std::string.
the option identifier cannot be found in the list of valid option identifiers that were added to the parser via sharg::parser::add_option() calls beforehand.

This entity is stable. Since version 1.0.

◆ parse()

void sharg::parser::parse ( )

inline

Initiates the actual command line parsing.

Attention: The function must be called at the very end of all parser related code and should be enclosed in a try catch block as the parser may throw.

Exceptions

sharg::design_error	if this function was already called before.
sharg::design_error	if the application name or subcommands contain illegal characters.
sharg::option_declared_multiple_times	if an option that is not a list was declared multiple times.
sharg::user_input_error	if an incorrect argument is given as (positional) option value.
sharg::required_option_missing	if the user did not provide a required option.
sharg::too_many_arguments	if the command line call contained more arguments than expected.
sharg::too_few_arguments	if the command line call contained less arguments than expected.
sharg::validation_error	if the argument was not excepted by the provided validator.

When no specific key words are supplied, the sharg::parser starts to process the command line for specified options, flags and positional options.

If the given command line input (argv) contains the following keywords (in order of checking), the parser will exit (std::exit) with error code 0 after doing the following:

-h/--help Prints the help page.
-hh/--advanced-help Prints the help page including advanced options.
--version Prints the version information.
--export-help [format] Prints the application description in the given format (html/man/ctd).
--version-check false/0/true/1 Disable/enable update notifications.

Example:

// SPDX-FileCopyrightText: 2006-2024 Knut Reinert & Freie Universität Berlin
// SPDX-FileCopyrightText: 2016-2024 Knut Reinert & MPI für molekulare Genetik
// SPDX-License-Identifier: CC0-1.0
 
#include <sharg/all.hpp>
 
int main(int argc, char ** argv)
{
    sharg::parser myparser{"The-Age-App", argc, argv}; // initialize
 
    int age{30}; // define default values directly in the variable
 
    myparser.add_option(age, sharg::config{.short_id = 'a', .long_id = "user-age", .description = "Your age please."});
 
    try
    {
        myparser.parse();
    }
    catch (sharg::parser_error const & ext) // the user did something wrong
    {
        std::cerr << "The-Age-App - [PARSER ERROR] " << ext.what() << '\n'; // customize your error message
        return -1;
    }
 
    std::cerr << "integer given by user: " << age << '\n';
    return 0;
}

The code above gives the following output when calling --help:

MaxMuster$ ./age_app --help
The-Age-App
===========
 
OPTIONS
    -a, --user-age (signed 32 bit integer)
          Please specify your age.
 
VERSION
    Last update:
    The-Age-App version:
    Sharg version: 0.1.0
 
Thanks for using The-Age-App!

If the user does something wrong, it looks like this:

MaxMuster$ ./age_app --foo

The Age App - [PARSER ERROR] Unknown option --foo. Please see -h/--help for more information.

MaxMuster$ ./age_app -a abc
The Age App - [PARSER ERROR] Value cast failed for option -a: Argument abc
                             could not be casted to type (signed 32 bit integer).

This entity is stable. Since version 1.0.

Member Data Documentation

◆ info

parser_meta_data sharg::parser::info

Aggregates all parser related meta data (see sharg::parser_meta_data struct).

Attention: You should supply as much information as possible to help users of the application.

The meta information is assembled in a struct to provide a central access point that can be easily extended.

You can access the members directly: (see sharg::parser_meta_data for a list of the info members)

// SPDX-FileCopyrightText: 2006-2024 Knut Reinert & Freie Universität Berlin
// SPDX-FileCopyrightText: 2016-2024 Knut Reinert & MPI für molekulare Genetik
// SPDX-License-Identifier: CC0-1.0
 
#include <sharg/all.hpp>
 
int main(int argc, char ** argv)
{
    sharg::parser myparser{"Penguin_Parade", argc, argv}; // initialize
 
    myparser.info.version = "2.0.0";
    myparser.info.date = "12.01.2017";
    myparser.info.short_description = "Organize your penguin parade";
    myparser.info.description.push_back("First Paragraph.");
    myparser.info.description.push_back("Second Paragraph.");
    myparser.info.examples.push_back("./penguin_parade Skipper Kowalski Rico Private -d 10 -m 02 -y 2017");
 
    int d{01};   // day
    int m{01};   // month
    int y{2050}; // year
 
    myparser.add_option(d, sharg::config{.short_id = 'd', .long_id = "day", .description = "Your preferred day."});
    myparser.add_option(m, sharg::config{.short_id = 'm', .long_id = "month", .description = "Your preferred month."});
    myparser.add_option(y, sharg::config{.short_id = 'y', .long_id = "year", .description = "Your preferred year."});
 
    std::vector<std::string> penguin_names;
 
    myparser.add_positional_option(penguin_names, sharg::config{.description = "Specify the names of the penguins."});
 
    try
    {
        myparser.parse();
    }
    catch (sharg::parser_error const & ext) // the user did something wrong
    {
        std::cerr << ext.what() << "\n";
        return -1;
    }
 
    // organize ...
 
    return 0;
}

This will produce a nice help page when the user calls -h or --help:

MaxMuster% ./penguin_app --help
Penguin_Parade - Organize your penguin parade
=============================================
 
DESCRIPTION
    First Paragraph.
 
    Second Paragraph.
 
POSITIONAL ARGUMENTS
    ARGUMENT-1 List of STRING's
          Specify the names of the penguins.
 
OPTIONS
    -d, --day (signed 32 bit integer)
          Please specify your preferred day.
    -m, --month (signed 32 bit integer)
          Please specify your preferred month.
    -y, --year (signed 32 bit integer)
          Please specify your preferred year.
 
EXAMPLES
    ./penguin_parade Skipper Kowalski Rico Private -d 10 -m 02 -y 2017
 
VERSION
    Last update: 12.01.2017
    Penguin_Parade version: 2.0.0
    Sharg version: 0.1.0

This entity is stable. Since version 1.0.

The documentation for this class was generated from the following file:

parser.hpp

Public Member Functions

Public Attributes

Detailed Description

Terminology

Add/get options, flags or positional Options

The POSIX conventions

Errors that are caught by the parser

Update Notifications

Constructor & Destructor Documentation

◆ parser()

Member Function Documentation

◆ add_flag()

◆ add_line()

◆ add_list_item()

◆ add_option()

◆ add_positional_option()

◆ add_section()

◆ add_subcommands()

Example

◆ add_subsection()

◆ get_sub_parser()

◆ is_option_set()

Example

Exceptions

◆ parse()

Member Data Documentation

◆ info