Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | Static Private Member Functions | List of all members
ecl::Arg Class Referenceabstract

Virtual parent for all the different argument classes. More...

#include <arg.hpp>

Inheritance diagram for ecl::Arg:
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Public Member Functions

bool _hasBlanks (const std::string &s) const
 
virtual bool acceptsMultipleValues ()
 
virtual void addToList (std::list< Arg * > &argList) const
 
virtual bool allowMore ()
 
virtual bool argMatches (const std::string &s) const
 
void forceRequired ()
 
std::string getDescription () const
 
const std::string & getFlag () const
 
const std::string & getName () const
 
bool isIgnoreable () const
 
virtual bool isRequired () const
 
bool isSet () const
 
bool isValueRequired () const
 
virtual std::string longID (const std::string &valueId="val") const
 
virtual bool operator== (const Arg &a) const
 
virtual bool processArg (int *i, std::vector< std::string > &args)=0
 
void setRequireLabel (const std::string &s)
 
virtual std::string shortID (const std::string &valueId="val") const
 
virtual std::string toString () const
 
virtual void trimFlag (std::string &flag, std::string &value) const
 
void xorSet ()
 
virtual ~Arg ()
 

Static Public Member Functions

static void beginIgnoring ()
 
static char blankChar ()
 
static char delimiter ()
 
static char flagStartChar ()
 
static std::string flagStartString ()
 
static std::string ignoreNameString ()
 
static bool ignoreRest ()
 
static std::string nameStartString ()
 
static void setDelimiter (char c)
 

Protected Member Functions

void _checkWithVisitor () const
 
 Arg (const std::string &flag, const std::string &name, const std::string &desc, bool req, bool valreq, Visitor *v=NULL)
 

Protected Attributes

bool _acceptsMultipleValues
 
bool _alreadySet
 
std::string _description
 
std::string _flag
 
bool _ignoreable
 
std::string _name
 
bool _required
 
std::string _requireLabel
 
bool _valueRequired
 
Visitor * _visitor
 
bool _xorSet
 

Static Private Member Functions

static char & delimiterRef ()
 
static bool & ignoreRestRef ()
 

Detailed Description

Virtual parent for all the different argument classes.

A virtual base class that defines the essential data for all arguments. This class, or one of its existing children, must be subclassed to do anything.

Definition at line 37 of file arg.hpp.

Constructor & Destructor Documentation

ecl::Arg::Arg ( const std::string &  flag,
const std::string &  name,
const std::string &  desc,
bool  req,
bool  valreq,
Visitor *  v = NULL 
)
inlineprotected

Primary constructor. YOU (yes you) should NEVER construct an Arg directly, this is a base class that is extended by various children that are meant to be used. Use SwitchArg, ValueArg, MultiArg, UnlabeledValueArg, or UnlabeledMultiArg instead.

Parameters
flag- The flag identifying the argument.
name- The name identifying the argument.
desc- The description of the argument, used in the usage.
req- Whether the argument is required.
valreq- Whether the a value is required for the argument.
v- The visitor checked by the argument. Defaults to NULL.

Definition at line 353 of file arg.hpp.

ecl::Arg::~Arg ( )
inlinevirtual

Destructor.

Definition at line 394 of file arg.hpp.

Member Function Documentation

void ecl::Arg::_checkWithVisitor ( ) const
inlineprotected

Performs the special handling described by the Vistitor.

Definition at line 505 of file arg.hpp.

bool ecl::Arg::_hasBlanks ( const std::string &  s) const
inline

Checks whether a given string has blank chars, indicating that it is a combined SwitchArg. If so, return true, otherwise return false.

Parameters
s- string to be checked.

Implementation of _hasBlanks.

Definition at line 535 of file arg.hpp.

bool ecl::Arg::acceptsMultipleValues ( )
inlinevirtual

Definition at line 568 of file arg.hpp.

void ecl::Arg::addToList ( std::list< Arg * > &  argList) const
inlinevirtual

Adds this to the specified list of Args.

Parameters
argList- The list to add this to.

Overridden by Args that need to added to the end of the list.

Reimplemented in ecl::UnlabeledValueArg< T >, and ecl::UnlabeledMultiArg< T >.

Definition at line 558 of file arg.hpp.

bool ecl::Arg::allowMore ( )
inlinevirtual

Reimplemented in ecl::MultiArg< T >.

Definition at line 563 of file arg.hpp.

bool ecl::Arg::argMatches ( const std::string &  s) const
inlinevirtual

A method that tests whether a string matches this argument. This is generally called by the processArg() method. This method could be re-implemented by a child to change how arguments are specified on the command line.

Parameters
s- The string to be compared to the flag/name to determine whether the arg matches.

Definition at line 484 of file arg.hpp.

static void ecl::Arg::beginIgnoring ( )
inlinestatic

Begin ignoring arguments since the "--" argument was specified.

Definition at line 164 of file arg.hpp.

static char ecl::Arg::blankChar ( )
inlinestatic

The char used as a place holder when SwitchArgs are combined. Currently set to '*', which shouldn't cause many problems since *'s are expanded by most shells on the command line.

Definition at line 182 of file arg.hpp.

static char ecl::Arg::delimiter ( )
inlinestatic

The delimiter that separates an argument flag/name from the value.

Definition at line 175 of file arg.hpp.

static char& ecl::Arg::delimiterRef ( )
inlinestaticprivate

The delimiter that separates an argument flag/name from the value.

Definition at line 50 of file arg.hpp.

static char ecl::Arg::flagStartChar ( )
inlinestatic

The char that indicates the beginning of a flag. Currently '-'.

Definition at line 187 of file arg.hpp.

static std::string ecl::Arg::flagStartString ( )
inlinestatic

The sting that indicates the beginning of a flag. Currently "-". Should be identical to flagStartChar.

Definition at line 193 of file arg.hpp.

void ecl::Arg::forceRequired ( )
inline

Sets _required to true. This is used by the XorHandler. You really have no reason to ever use it.

Definition at line 544 of file arg.hpp.

std::string ecl::Arg::getDescription ( ) const
inline

Returns the argument description.

Definition at line 448 of file arg.hpp.

const std::string & ecl::Arg::getFlag ( ) const
inline

Returns the argument flag.

Definition at line 461 of file arg.hpp.

const std::string & ecl::Arg::getName ( ) const
inline

Returns the argument name.

Definition at line 463 of file arg.hpp.

static std::string ecl::Arg::ignoreNameString ( )
inlinestatic

The name used to identify the ignore rest argument.

Definition at line 204 of file arg.hpp.

static bool ecl::Arg::ignoreRest ( )
inlinestatic

Whether to ignore the rest.

Definition at line 169 of file arg.hpp.

static bool& ecl::Arg::ignoreRestRef ( )
inlinestaticprivate

Indicates whether the rest of the arguments should be ignored.

Definition at line 44 of file arg.hpp.

bool ecl::Arg::isIgnoreable ( ) const
inline

Indicates whether the argument can be ignored, if desired.

Definition at line 477 of file arg.hpp.

bool ecl::Arg::isRequired ( ) const
inlinevirtual

Indicates whether the argument is required.

Reimplemented in ecl::MultiArg< T >.

Definition at line 465 of file arg.hpp.

bool ecl::Arg::isSet ( ) const
inline

Indicates whether the argument has already been set. Only true if the arg has been matched on the command line.

Definition at line 469 of file arg.hpp.

bool ecl::Arg::isValueRequired ( ) const
inline

Indicates whether a value must be specified for argument.

Definition at line 467 of file arg.hpp.

std::string ecl::Arg::longID ( const std::string &  valueId = "val") const
inlinevirtual

Returns a long ID for the usage.

Parameters
valueId- The value used in the id.

Reimplemented in ecl::ValueArg< T >, ecl::MultiArg< T >, ecl::UnlabeledValueArg< T >, ecl::UnlabeledMultiArg< T >, and ecl::MultiSwitchArg.

Definition at line 417 of file arg.hpp.

static std::string ecl::Arg::nameStartString ( )
inlinestatic

The sting that indicates the beginning of a name. Currently "--". Should be flagStartChar twice.

Definition at line 199 of file arg.hpp.

bool ecl::Arg::operator== ( const Arg &  a) const
inlinevirtual

Operator ==. Equality operator. Must be virtual to handle unlabeled args.

Parameters
a- The Arg to be compared to this.

Reimplemented in ecl::UnlabeledValueArg< T >, and ecl::UnlabeledMultiArg< T >.

Definition at line 440 of file arg.hpp.

virtual bool ecl::Arg::processArg ( int *  i,
std::vector< std::string > &  args 
)
pure virtual

Pure virtual method meant to handle the parsing and value assignment of the string on the command line.

Parameters
i- Pointer the the current argument in the list.
args- Mutable list of strings. What is passed in from main.

Implemented in ecl::ValueArg< T >, ecl::MultiArg< T >, ecl::UnlabeledValueArg< T >, ecl::UnlabeledMultiArg< T >, ecl::MultiSwitchArg, and ecl::SwitchArg.

static void ecl::Arg::setDelimiter ( char  c)
inlinestatic

Sets the delimiter for all arguments.

Parameters
c- The character that delimits flags/names from values.

Definition at line 210 of file arg.hpp.

void ecl::Arg::setRequireLabel ( const std::string &  s)
inline

Sets the requireLabel. Used by XorHandler. You shouldn't ever use this.

Parameters
s- Set the requireLabel to this value.

Definition at line 479 of file arg.hpp.

std::string ecl::Arg::shortID ( const std::string &  valueId = "val") const
inlinevirtual

Returns a short ID for the usage.

Parameters
valueId- The value used in the id.

Reimplemented in ecl::ValueArg< T >, ecl::MultiArg< T >, ecl::UnlabeledValueArg< T >, ecl::UnlabeledMultiArg< T >, and ecl::MultiSwitchArg.

Definition at line 396 of file arg.hpp.

std::string ecl::Arg::toString ( ) const
inlinevirtual

Returns a simple string representation of the argument. Primarily for debugging.

Definition at line 493 of file arg.hpp.

void ecl::Arg::trimFlag ( std::string &  flag,
std::string &  value 
) const
inlinevirtual

Trims a value off of the flag.

Parameters
flag- The string from which the flag and value will be trimmed. Contains the flag once the value has been trimmed.
value- Where the value trimmed from the string will be stored.

Implementation of trimFlag.

Definition at line 514 of file arg.hpp.

void ecl::Arg::xorSet ( )
inline

Sets the _alreadySet value to true. This is used by the XorHandler. You really have no reason to ever use it.

Definition at line 549 of file arg.hpp.

Member Data Documentation

bool ecl::Arg::_acceptsMultipleValues
protected

Definition at line 122 of file arg.hpp.

bool ecl::Arg::_alreadySet
protected

Indicates whether the argument has been set. Indicates that a value on the command line has matched the name/flag of this argument and the values have been set accordingly.

Definition at line 101 of file arg.hpp.

std::string ecl::Arg::_description
protected

Description of the argument.

Definition at line 76 of file arg.hpp.

std::string ecl::Arg::_flag
protected

The single char flag used to identify the argument. This value (preceded by a dash {-}), can be used to identify an argument on the command line. The _flag can be blank, in fact this is how unlabeled args work. Unlabeled args must override appropriate functions to get correct handling. Note that the _flag does NOT include the dash as part of the flag.

Definition at line 62 of file arg.hpp.

bool ecl::Arg::_ignoreable
protected

Whether this argument can be ignored, if desired.

Definition at line 114 of file arg.hpp.

std::string ecl::Arg::_name
protected

A single work namd indentifying the argument. This value (preceded by two dashed {–}) can also be used to identify an argument on the command line. Note that the _name does NOT include the two dashes as part of the _name. The _name cannot be blank.

Definition at line 71 of file arg.hpp.

bool ecl::Arg::_required
protected

Indicating whether the argument is required.

Definition at line 81 of file arg.hpp.

std::string ecl::Arg::_requireLabel
protected

Label to be used in usage description. Normally set to "required", but can be changed when necessary.

Definition at line 87 of file arg.hpp.

bool ecl::Arg::_valueRequired
protected

Indicates whether a value is required for the argument. Note that the value may be required but the argument/value combination may not be, as specified by _required.

Definition at line 94 of file arg.hpp.

Visitor* ecl::Arg::_visitor
protected

A pointer to a vistitor object. The visitor allows special handling to occur as soon as the argument is matched. This defaults to NULL and should not be used unless absolutely necessary.

Definition at line 109 of file arg.hpp.

bool ecl::Arg::_xorSet
protected

Indicates that the arg was set as part of an XOR and not on the command line.

Definition at line 120 of file arg.hpp.

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

ecl_command_line
Author(s): Daniel Stonier
autogenerated on Mon Jun 10 2019 13:08:08