A generalized format to create different tool description files. More...

#include <sharg/detail/format_tdl.hpp>

Inheritance diagram for sharg::detail::format_tdl:

Public Types
enum class	FileFormat { CTD , CWL }
	Supported tool description file formats. More...

Public Attributes
std::vector< std::function< void(std::string_view)> >	parser_set_up_calls
	Vector of functions that stores all calls except add_positional_option.

std::vector< std::function< void(std::string_view)> >	positional_option_calls
	Vector of functions that stores add_positional_option calls.

unsigned	positional_option_count {0}
	Keeps track of the number of positional options.

tdl::ToolInfo	info
	TDL DS filled with tool meta information.

tdl::Node::Children	parameters
	all collected parameters

FileFormat	fileFormat
	Targeted tool description format.

parser_meta_data	meta
	Stores all meta information about the application.

Constructors, destructor and assignment
	format_tdl (FileFormat fileFormat)
	Construct from a file format.

	format_tdl (format_tdl const &)=default
	Defaulted.

format_tdl &	operator= (format_tdl const &)=default
	Defaulted.

	format_tdl (format_tdl &&)=default
	Defaulted.

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

	~format_tdl ()=default
	Defaulted.

template<typename option_type , typename validator_t >
void	add_option (option_type &value, config< validator_t > const &config)
	Adds a sharg::print_list_item call to be evaluated later on.

template<typename validator_t >
void	add_flag (bool &value, config< validator_t > const &config)
	Adds a sharg::print_list_item call to be evaluated later on.

template<typename option_type , typename validator_t >
void	add_positional_option (option_type &value, config< validator_t > const &config)
	Adds a sharg::print_list_item call to be evaluated later on.

void	parse (parser_meta_data &parser_meta, std::vector< std::string > const &executable_name)
	Initiates the printing of the help page to std::cout.

void	add_section (std::string const &title, bool const advanced_only)
	Adds a print_section call to parser_set_up_calls.

void	add_subsection (std::string const &title, bool const advanced_only)
	Adds a print_subsection call to parser_set_up_calls.

void	add_line (std::string const &text, bool is_paragraph, bool const advanced_only)
	Adds a print_line call to parser_set_up_calls.

void	add_list_item (std::string const &key, std::string const &desc, bool const advanced_only)
	Adds a sharg::print_list_item call to parser_set_up_calls.

template<typename validator_t >
void	store_help_page_element (std::function< void(std::string_view)> printer, config< validator_t > const &config)
	Adds a function object to parser_set_up_calls if the annotation in `spec` does not prevent it.

Additional Inherited Members
Static Private Member Functions inherited from sharg::detail::format_base
template<typename value_type >
static std::string	get_type_name_as_string (value_type const &)
	Returns the input type as a string (reflection).

template<detail::is_container_option container_type>
static std::string	get_type_name_as_string (container_type const &)
	Returns the `value_type` of the input container as a string (reflection).

template<typename option_value_type >
static std::string	option_type_and_list_info (option_value_type const &value)
	Formats the type of a value for the help page printing.

template<detail::is_container_option container_type>
static std::string	option_type_and_list_info (container_type const &container)
	Formats the container and its value_type for the help page printing.

static std::string	prep_id_for_help (char const short_id, std::string const &long_id)
	Formats the option/flag identifier pair for the help page printing.

static std::string	escape_special_xml_chars (std::string const &original)
	Escapes certain characters for correct output.

static std::string	expand_multiple_flags (std::string const &flag_cluster)
	Expands multiple one character flag identifiers for pretty help output.

template<typename option_type , typename default_type >
static std::string	get_default_message (option_type const &option, default_type const &value)
	Returns the default message for the help page.

Detailed Description

A generalized format to create different tool description files.

This class allows to create different outputs format. See sharg::detail::format_tdl::FileFormat for available formats.

Member Enumeration Documentation

◆ FileFormat

enum class sharg::detail::format_tdl::FileFormat

strong

Supported tool description file formats.

Enumerator
CTD	Support for CTD format.
CWL	Support for CWL format.

Constructor & Destructor Documentation

◆ format_tdl()

sharg::detail::format_tdl::format_tdl ( FileFormat fileFormat )

inline

Construct from a file format.

Parameters

fileFormat The file format.

Member Function Documentation

◆ add_flag()

template<typename validator_t >

void sharg::detail::format_tdl::add_flag	(	bool &	value,
		config< validator_t > const &	config )

inline

Adds a sharg::print_list_item call to be evaluated later on.

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::detail::format_tdl::add_line	(	std::string const &	text,
		bool	is_paragraph,
		bool const	advanced_only )

inline

Adds a print_line call to parser_set_up_calls.

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::detail::format_tdl::add_list_item	(	std::string const &	key,
		std::string const &	desc,
		bool const	advanced_only )

inline

Adds a sharg::print_list_item call to parser_set_up_calls.

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_t >

void sharg::detail::format_tdl::add_option	(	option_type &	value,
		config< validator_t > const &	config )

inline

Adds a sharg::print_list_item call to be evaluated later on.

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_t >

void sharg::detail::format_tdl::add_positional_option	(	option_type &	value,
		config< validator_t > const &	config )

inline

Adds a sharg::print_list_item call to be evaluated later on.

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::detail::format_tdl::add_section	(	std::string const &	title,
		bool const	advanced_only )

inline

Adds a print_section call to parser_set_up_calls.

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_subsection()

void sharg::detail::format_tdl::add_subsection	(	std::string const &	title,
		bool const	advanced_only )

inline

Adds a print_subsection call to parser_set_up_calls.

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.

◆ parse()

void sharg::detail::format_tdl::parse	(	parser_meta_data &	parser_meta,
		std::vector< std::string > const &	executable_name )

inline

Initiates the printing of the help page to std::cout.

Parameters

[in]	parser_meta	The meta information that are needed for a detailed help page.
[in]	executable_name	A list of arguments that form together the call to the executable. For example: [raptor, build]

◆ store_help_page_element()

template<typename validator_t >

void sharg::detail::format_tdl::store_help_page_element	(	std::function< void(std::string_view)>	printer,
		config< validator_t > const &	config )

inlineprivate

Adds a function object to parser_set_up_calls if the annotation in spec does not prevent it.

Parameters

[in]	printer	The invokable that, if added to `parser_set_up_calls`, prints information to the help page.
[in]	config	The option specification deciding whether to add the information to the help page.

If spec equals sharg::option_spec::hidden, the information is never added to the help page.

Member Data Documentation

◆ meta

parser_meta_data sharg::detail::format_tdl::meta

Stores all meta information about the application.

This needs to be a member of format_parse, because it needs to present (not filled) when the parser_set_up_calls vector is filled, since all printing functions need some meta information. The member variable itself is filled when copied over from the argument_parser when calling format_parse::parse. That way all the information needed are there, when the actual printing starts.

This function is not private because it is needed for short but nicely formatted (error) output to the command line.

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

format_tdl.hpp

Public Types

Public Attributes

Constructors, destructor and assignment

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ FileFormat

Constructor & Destructor Documentation

◆ format_tdl()

Member Function Documentation

◆ add_flag()

◆ add_line()

◆ add_list_item()

◆ add_option()

◆ add_positional_option()

◆ add_section()

◆ add_subsection()

◆ parse()

◆ store_help_page_element()

Member Data Documentation

◆ meta