Class that helps parse command line input arguments from (argc,argv[]) and set options. More...

#include <Teuchos_CommandLineProcessor.hpp>

Classes
struct	enum_opt_data_t

class	HelpPrinted
	Thrown if –help was specified and throwExceptions==true. More...

struct	opt_doc_t

struct	opt_val_val_t

class	ParseError
	Thrown if a parse std::exception occurs and throwExceptions==true. More...

class	TimeMonitorSurrogate
	Interface by which CommandLineProcessor may use TimeMonitor. More...

class	UnrecognizedOption
	Thrown if an unrecognized option was found and throwExceptions==true. More...

Public Types
enum	EOptType { OPT_NONE, OPT_BOOL_TRUE, OPT_BOOL_FALSE, OPT_INT, OPT_LONG_INT, OPT_SIZE_T, OPT_LONG_LONG_INT, OPT_DOUBLE, OPT_FLOAT, OPT_STRING, OPT_ENUM_INT }

Static Public Member Functions
static void	setTimeMonitorSurrogate (const RCP< TimeMonitorSurrogate > &timeMonitorSurrogate)

static RCP< TimeMonitorSurrogate >	getTimeMonitorSurrogate ()

Private Types
typedef Teuchos::map < std::string, opt_val_val_t >	options_list_t

typedef std::vector< opt_doc_t >	options_documentation_list_t

typedef std::vector < enum_opt_data_t >	enum_opt_data_list_t

Private Member Functions
void	add_extra_output_setup_options () const

void	setEnumOption (const char enum_option_name[], int enum_option_val, const int num_enum_opt_values, const int enum_opt_values[], const char const enum_opt_names[], const char documentation[], const bool required)

bool	set_enum_value (int argv_i, char argv[], const std::string &enum_opt_name, const int enum_id, const std::string &enum_str_val, std::ostream errout) const

void	print_enum_opt_names (const int enum_id, std::ostream &out) const

std::string	enum_opt_default_val_name (const std::string &enum_name, const int enum_id, std::ostream *errout) const

int	find_enum_opt_index (const std::string &enum_opt_name, const int opt_value, const enum_opt_data_t &enum_data, std::ostream *errout) const

bool	get_opt_val (const char str[], std::string opt_name, std::string opt_val_str) const

std::string	opt_type_str (EOptType) const

void	print_bad_opt (int argv_i, char argv[], std::ostream errout) const

Static Private Member Functions
static RCP < TimeMonitorSurrogate > &	getRawTimeMonitorSurrogate ()

Private Attributes
bool	throwExceptions_

bool	recogniseAllOptions_

bool	addOutputSetupOptions_

std::string	doc_string_

options_list_t	options_list_

options_documentation_list_t	options_documentation_list_

enum_opt_data_list_t	enum_opt_data_list_

bool	output_all_front_matter_

bool	output_show_line_prefix_

bool	output_show_tab_count_

bool	output_show_proc_rank_

int	output_to_root_rank_only_

bool	print_rcpnode_statistics_on_exit_

bool	show_timer_summary_on_exit_

bool	printed_timer_summary_

bool	added_extra_output_setup_options_

bool	in_add_extra_output_setup_options_

Static Private Attributes
static const bool	output_all_front_matter_default_

static const bool	output_show_line_prefix_default_

static const bool	output_show_tab_count_default_

static const bool	output_show_proc_rank_default_

static const int	output_to_root_rank_only_default_

static const bool	print_rcpnode_statistics_on_exit_default_

static const bool	show_timer_summary_on_exit_default_

Related Functions
(Note that these are not member functions.)
void	setVerbosityLevelOption (const std::string &optionName, EVerbosityLevel verbLevel, const std::string &docString, CommandLineProcessor clp, const bool required=false)
	Set a verbosity level parameter on a CommandLineProcessor object.. More...

Public types
enum	EParseCommandLineReturn { PARSE_SUCCESSFUL = 0, PARSE_HELP_PRINTED = 1, PARSE_UNRECOGNIZED_OPTION = 2, PARSE_ERROR = 3 }
	Return value for `CommandLineProcessor::parse()`. Note: These enums are all given non-negative values since they are designed to be returned from main(). More...

Constructors
	CommandLineProcessor (bool throwExceptions=true, bool recogniseAllOptions=true, bool addOutputSetupOptions=false)
	Default Constructor. More...

	~CommandLineProcessor ()
	Destructor. More...

Behavior modes
void	throwExceptions (const bool &throwExceptions)
	Set if an std::exception is thrown, there is a parse error, or help is printed. More...

bool	throwExceptions () const
	Returns true if an std::exception is thrown, there is a parse error, or help is printed. More...

void	recogniseAllOptions (const bool &recogniseAllOptions)
	Set if all options must be recognized or not. More...

bool	recogniseAllOptions () const
	Returns true if all options must be recognized by the parser. More...

void	addOutputSetupOptions (const bool &addOutputSetupOptions)
	Set if options will be automatically added to setup `Teuchos::VerboseObjectBase::getDefaultOStream()`. More...

bool	addOutputSetupOptions () const
	Returns true options will be automatically added to setup `Teuchos::VerboseObjectBase::getDefaultOStream()`. More...

Set up options
void	setDocString (const char doc_string[])
	Set a documentation sting for the entire program printed when –help is specified. More...

void	setOption (const char option_true[], const char option_false[], bool *option_val, const char documentation[]=NULL)
	Set a boolean option. More...

void	setOption (const char option_name[], int *option_val, const char documentation[]=NULL, const bool required=false)
	Set an integer option. More...

void	setOption (const char option_name[], long int *option_val, const char documentation[]=NULL, const bool required=false)
	Set a long integer option. More...

void	setOption (const char option_name[], size_t *option_val, const char documentation[]=NULL, const bool required=false)
	Set a size_t option. More...

void	setOption (const char option_name[], long long int *option_val, const char documentation[]=NULL, const bool required=false)
	Set a long long integer option. More...

void	setOption (const char option_name[], double *option_val, const char documentation[]=NULL, const bool required=false)
	Set a floating-point option. More...

void	setOption (const char option_name[], float *option_val, const char documentation[]=NULL, const bool required=false)
	Set a floating-point option. More...

void	setOption (const char option_name[], std::string *option_val, const char documentation[]=NULL, const bool required=false)
	Set a std::string option. More...

template<class EType >
void	setOption (const char enum_option_name[], EType enum_option_val, const int num_enum_opt_values, const EType enum_opt_values[], const char const enum_opt_names[], const char documentation[]=nullptr, const bool required=false)
	Set an enumeration option (templated by enumeration type). More...

Parse
EParseCommandLineReturn	parse (int argc, char argv[], std::ostream errout=&std::cerr) const
	Parse a command line. More...

Miscellaneous
void	printHelpMessage (const char program_name[], std::ostream &out) const
	Print the help message. More...

void	printFinalTimerSummary (const Ptr< std::ostream > &out=null)
	Call to print timers so that they don't get printed in the destructor. More...

Detailed Description

Class that helps parse command line input arguments from (argc,argv[]) and set options.

This class will process command-line arguments in the form of (argc,argv[]) and set user-defined options. This class can also work in a number of modes. This processor can require that all options be recognized or not.

This class object will also setup the behavior of Teuchos::VerboseObjectBase::getDefaultOStream() if this->addOutputSetupOptions()==true

Warning, the option –show-timer-summary is only enabled if the subpackage TeuchosComm is enabled!

Definition at line 44 of file Teuchos_CommandLineProcessor.hpp.

Member Typedef Documentation

typedef Teuchos::map<std::string,opt_val_val_t> Teuchos::CommandLineProcessor::options_list_t

private

Definition at line 442 of file Teuchos_CommandLineProcessor.hpp.

typedef std::vector<opt_doc_t> Teuchos::CommandLineProcessor::options_documentation_list_t

private

Definition at line 462 of file Teuchos_CommandLineProcessor.hpp.

typedef std::vector<enum_opt_data_t> Teuchos::CommandLineProcessor::enum_opt_data_list_t

private

Definition at line 489 of file Teuchos_CommandLineProcessor.hpp.

Member Enumeration Documentation

enum Teuchos::CommandLineProcessor::EParseCommandLineReturn

Return value for CommandLineProcessor::parse(). Note: These enums are all given non-negative values since they are designed to be returned from main().

Enumerator
PARSE_SUCCESSFUL	Parsing the command line was successful.
PARSE_HELP_PRINTED	The help statement was printed for the command line parser.
PARSE_UNRECOGNIZED_OPTION	The command line parser encountered an unrecognized option.
PARSE_ERROR	The command line parser encountered an error.

Definition at line 66 of file Teuchos_CommandLineProcessor.hpp.

enum Teuchos::CommandLineProcessor::EOptType

Enumerator
OPT_NONE
OPT_BOOL_TRUE
OPT_BOOL_FALSE
OPT_INT
OPT_LONG_INT
OPT_SIZE_T
OPT_LONG_LONG_INT
OPT_DOUBLE
OPT_FLOAT
OPT_STRING
OPT_ENUM_INT

Definition at line 407 of file Teuchos_CommandLineProcessor.hpp.

Constructor & Destructor Documentation

Teuchos::CommandLineProcessor::CommandLineProcessor	(	bool	throwExceptions = `true`,
		bool	recogniseAllOptions = `true`,
		bool	addOutputSetupOptions = `false`
	)

Default Constructor.

Parameters

throwExceptions	[in] If `true` then `this->parse()` will throw exceptions instead of returning `!=PARSE_SUCCESSFUL`.
recogniseAllOptions	[in] If `true` then `this->parse()` will return the appropriate error for any option it does not recognize. If `false`, then `this->parse()` will simply ignore options that it does not recognize. However, a warning will be printed for any unrecognized option, but no errors will be returned.
addOutputSetupOptions	[in] If `true` then options will be automatically added to setup `Teuchos::VerboseObjectBase::getDefaultOStream()`.

Definition at line 66 of file Teuchos_CommandLineProcessor.cpp.

Teuchos::CommandLineProcessor::~CommandLineProcessor ( )

Destructor.

Definition at line 87 of file Teuchos_CommandLineProcessor.cpp.

Member Function Documentation

void Teuchos::CommandLineProcessor::throwExceptions ( const bool & throwExceptions )

inline

Set if an std::exception is thrown, there is a parse error, or help is printed.

Definition at line 661 of file Teuchos_CommandLineProcessor.hpp.

bool Teuchos::CommandLineProcessor::throwExceptions ( ) const

inline

Returns true if an std::exception is thrown, there is a parse error, or help is printed.

Definition at line 666 of file Teuchos_CommandLineProcessor.hpp.

void Teuchos::CommandLineProcessor::recogniseAllOptions ( const bool & recogniseAllOptions )

inline

Set if all options must be recognized or not.

Definition at line 671 of file Teuchos_CommandLineProcessor.hpp.

bool Teuchos::CommandLineProcessor::recogniseAllOptions ( ) const

inline

Returns true if all options must be recognized by the parser.

Definition at line 676 of file Teuchos_CommandLineProcessor.hpp.

void Teuchos::CommandLineProcessor::addOutputSetupOptions ( const bool & addOutputSetupOptions )

inline

Set if options will be automatically added to setup Teuchos::VerboseObjectBase::getDefaultOStream().

Definition at line 681 of file Teuchos_CommandLineProcessor.hpp.

bool Teuchos::CommandLineProcessor::addOutputSetupOptions ( ) const

inline

Returns true options will be automatically added to setup Teuchos::VerboseObjectBase::getDefaultOStream().

Definition at line 686 of file Teuchos_CommandLineProcessor.hpp.

void Teuchos::CommandLineProcessor::setDocString ( const char doc_string[] )

Set a documentation sting for the entire program printed when –help is specified.

Definition at line 96 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::setOption	(	const char	option_true[],
		const char	option_false[],
		bool *	option_val,
		const char	documentation[] = `NULL`
	)

Set a boolean option.

Parameters

option_true	[in] (null terminated std::string) If this option is found then `*option_val = true` will be set.
option_false	[in] (null terminated std::string) If this option is found then `*option_val = false` will be set.
option_val	[in/out] On input, `*option_val` gives the default value of the option (used for printing in –help). On output, will be set according to `(argc,argv[])`.
documentation	[in] If `!=NULL`, then this null terminated std::string gives the documentation for the option.

Definition at line 102 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::setOption	(	const char	option_name[],
		int *	option_val,
		const char	documentation[] = `NULL`,
		const bool	required = `false`
	)

Set an integer option.

Parameters

option_name	[in] (null terminated std::string) The name of the option (without the leading '–' or trailing '=').
option_val	[in/out] On input, `*option_val` gives the default value of the option (used for printing in –help). On output, will be set according to `(argc,argv[])`.
documentation	[in] If `!=NULL`, then this null terminated std::string gives the documentation for the option.

Definition at line 122 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::setOption	(	const char	option_name[],
		long int *	option_val,
		const char	documentation[] = `NULL`,
		const bool	required = `false`
	)

Set a long integer option.

Parameters

option_name	[in] (null terminated std::string) The name of the option (without the leading '–' or trailing '=').
option_val	[in/out] On input, `*option_val` gives the default value of the option (used for printing in –help). On output, will be set according to `(argc,argv[])`.
documentation	[in] If `!=NULL`, then this null terminated std::string gives the documentation for the option.

Definition at line 140 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::setOption	(	const char	option_name[],
		size_t *	option_val,
		const char	documentation[] = `NULL`,
		const bool	required = `false`
	)

Set a size_t option.

Parameters

option_name	[in] (null terminated std::string) The name of the option (without the leading '–' or trailing '=').
option_val	[in/out] On input, `*option_val` gives the default value of the option (used for printing in –help). On output, will be set according to `(argc,argv[])`.
documentation	[in] If `!=NULL`, then this null terminated std::string gives the documentation for the option.

Definition at line 158 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::setOption	(	const char	option_name[],
		long long int *	option_val,
		const char	documentation[] = `NULL`,
		const bool	required = `false`
	)

Set a long long integer option.

Parameters

option_name	[in] (null terminated std::string) The name of the option (without the leading '–' or trailing '=').
option_val	[in/out] On input, `*option_val` gives the default value of the option (used for printing in –help). On output, will be set according to `(argc,argv[])`.
documentation	[in] If `!=NULL`, then this null terminated std::string gives the documentation for the option.

Definition at line 175 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::setOption	(	const char	option_name[],
		double *	option_val,
		const char	documentation[] = `NULL`,
		const bool	required = `false`
	)

Set a floating-point option.

Parameters

option_name	[in] (null terminated std::string) The name of the option (without the leading '–' or trailing '=').
option_val	[in/out] On input, `*option_val` gives the default value of the option (used for printing in –help). On output, will be set according to `(argc,argv[])`.
documentation	[in] If `!=NULL`, then this null terminated std::string gives the documentation for the option.

Definition at line 192 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::setOption	(	const char	option_name[],
		float *	option_val,
		const char	documentation[] = `NULL`,
		const bool	required = `false`
	)

Set a floating-point option.

Parameters

option_name	[in] (null terminated std::string) The name of the option (without the leading '–' or trailing '=').
option_val	[in/out] On input, `*option_val` gives the default value of the option (used for printing in –help). On output, will be set according to `(argc,argv[])`.
documentation	[in] If `!=NULL`, then this null terminated std::string gives the documentation for the option.

Definition at line 209 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::setOption	(	const char	option_name[],
		std::string *	option_val,
		const char	documentation[] = `NULL`,
		const bool	required = `false`
	)

Set a std::string option.

Parameters

option_name	[in] (null terminated std::string) The name of the option (without the leading '–' or trailing '=').
option_val	[in/out] On input, `*option_val` gives the default value of the option (used for printing in –help). On output, will be set according to `(argc,argv[])`.
documentation	[in] If `!=NULL`, then this null terminated std::string gives the documentation for the option.

Definition at line 226 of file Teuchos_CommandLineProcessor.cpp.

template<class EType >

void Teuchos::CommandLineProcessor::setOption	(	const char	enum_option_name[],
		EType *	enum_option_val,
		const int	num_enum_opt_values,
		const EType	enum_opt_values[],
		const char *const	enum_opt_names[],
		const char	documentation[] = `nullptr`,
		const bool	required = `false`
	)

inline

Set an enumeration option (templated by enumeration type).

Parameters

enum_option_name	[in] (null terminated std::string) The name of the option (without the leading '–' or trailing '=').
enum_option_val	[in/out] On input, `enum_option_val` gives the default value of the enumeration (used for printing in –help). After `parse()` finishes executing successfully, `enum_option_val` will contain the user-selected value of the enumeration.
num_enum_opt_values	[in] Gives the number of possible option values to select
enum_opt_values	[in] Array (length `num_enum_opt_values`) that gives the numeric values for each option. The values in this array are used to set the actual option `*enum_option_val`.
enum_opt_names	[in] Array (length `num_enum_opt_values`) that gives the char string names for each option. The strings in this function are what is used in the commandline.
documentation	[in] If `!=NULL`, then this array of null-terminated char string gives the documentation for the option.

Warning! Only use an enum or int for EType. Using any other type for EType could be trouble!

Definition at line 692 of file Teuchos_CommandLineProcessor.hpp.

CommandLineProcessor::EParseCommandLineReturn Teuchos::CommandLineProcessor::parse	(	int	argc,
		char *	argv[],
		std::ostream *	errout = `&std::cerr`
	)		const

Parse a command line.

Parameters

argc	[in] number of entries in argv[]
argv	[in/out] array (length argc) of command line arguments. argv[0] should be the name of the program on the shell as usual.
errout	[out] If `!=NULL` then error and help messages are sent here. The default is set to `&std::cerr`.

Postconditions:

If an unrecognized option is found
- If this->recogniseAllOptions()==true
  - An error message will be printed to *errout and parsing will stop as follows:
  - If this->throwExceptions()==true
    - This method will throw an UnrecognizedOption std::exception
  - else
    - This method will return PARSE_UNRECOGNIZED_OPTION
  - endif
- else
  - A warning message will be printed to *errout and parsing will continue
- endif
else if the option –help is found
- If this->throwExceptions()==true
  - This method will throw a HelpPrinted std::exception
- else
  - This method will return PARSE_HELP_PRINTED
- endif
else
- This method will return PARSE_SUCCESSFUL
endif

Note that if the option –pause-for-debugging is present, then std::string Type 0 and press enter to continue : will be printed to standard error (std::cerr) and execution will be suspended until the user enters any non-null character(s). This option is designed to make it easier to attach a debugger, especially in a parallel MPI program. If HAVE_MPI is defined, then output/input is only performed with the process with rank 0 and then MPI calls insure that all processors wait (using MPI_Barrier(MPI_COMM_WORLD)) until the user has entered something. This allows the user to attach a debugger to one or more parallel MPI processes and set breakpoints before execution resumes. Note that the stream *errout is not used for this output/input but instead std::cerr is directly used.

If Teuchos::VerboseObjectBase::getDefaultOStream().get()!=NULL and this->addOutputSetupOptions(), then any of the default setup options for Teuchos::VerboseObjectBase::getDefaultOStream() that are set on the commandline will be set on Teuchos::VerboseObjectBase::getDefaultOStream().

Definition at line 248 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::printHelpMessage	(	const char	program_name[],
		std::ostream &	out
	)		const

Print the help message.

Parameters

out	[in/out] The stream the documentation will be printed to.

This will print a formatted set of documentation that shows what options are set, what their default values are and any user-supplied documentation about each option.

Definition at line 404 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::printFinalTimerSummary ( const Ptr< std::ostream > & out = null )

Call to print timers so that they don't get printed in the destructor.

Calling this function after the first call has no effect.

Definition at line 573 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::add_extra_output_setup_options ( ) const

private

Definition at line 594 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::setEnumOption	(	const char	enum_option_name[],
		int *	enum_option_val,
		const int	num_enum_opt_values,
		const int	enum_opt_values[],
		const char *const	enum_opt_names[],
		const char	documentation[],
		const bool	required
	)

private

Definition at line 653 of file Teuchos_CommandLineProcessor.cpp.

bool Teuchos::CommandLineProcessor::set_enum_value	(	int	argv_i,
		char *	argv[],
		const std::string &	enum_opt_name,
		const int	enum_id,
		const std::string &	enum_str_val,
		std::ostream *	errout
	)		const

private

Definition at line 683 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::print_enum_opt_names	(	const int	enum_id,
		std::ostream &	out
	)		const

private

Definition at line 720 of file Teuchos_CommandLineProcessor.cpp.

std::string Teuchos::CommandLineProcessor::enum_opt_default_val_name	(	const std::string &	enum_name,
		const int	enum_id,
		std::ostream *	errout
	)		const

private

Definition at line 742 of file Teuchos_CommandLineProcessor.cpp.

int Teuchos::CommandLineProcessor::find_enum_opt_index	(	const std::string &	enum_opt_name,
		const int	opt_value,
		const enum_opt_data_t &	enum_data,
		std::ostream *	errout
	)		const

private

Definition at line 758 of file Teuchos_CommandLineProcessor.cpp.

bool Teuchos::CommandLineProcessor::get_opt_val	(	const char	str[],
		std::string *	opt_name,
		std::string *	opt_val_str
	)		const

private

Definition at line 784 of file Teuchos_CommandLineProcessor.cpp.

std::string Teuchos::CommandLineProcessor::opt_type_str ( EOptType opt_type ) const

inlineprivate

Definition at line 723 of file Teuchos_CommandLineProcessor.hpp.

void Teuchos::CommandLineProcessor::print_bad_opt	(	int	argv_i,
		char *	argv[],
		std::ostream *	errout
	)		const

private

Definition at line 810 of file Teuchos_CommandLineProcessor.cpp.

void Teuchos::CommandLineProcessor::setTimeMonitorSurrogate ( const RCP< TimeMonitorSurrogate > & timeMonitorSurrogate )

static

Definition at line 832 of file Teuchos_CommandLineProcessor.cpp.

RCP< CommandLineProcessor::TimeMonitorSurrogate > Teuchos::CommandLineProcessor::getTimeMonitorSurrogate ( )

static

Definition at line 840 of file Teuchos_CommandLineProcessor.cpp.

RCP< CommandLineProcessor::TimeMonitorSurrogate > & Teuchos::CommandLineProcessor::getRawTimeMonitorSurrogate ( )

staticprivate

Definition at line 847 of file Teuchos_CommandLineProcessor.cpp.

Friends And Related Function Documentation

void setVerbosityLevelOption	(	const std::string &	optionName,
		EVerbosityLevel *	verbLevel,
		const std::string &	docString,
		CommandLineProcessor *	clp,
		const bool	required = `false`
	)