std::basic_regex< _Ch_type, _Rx_traits > Class Template Reference

List of all members.

Public Types

• typedef
  regex_constants::syntax_option_type flag_type
• typedef traits_type::locale_type locale_type
• typedef traits_type::string_type string_type
• typedef _Rx_traits traits_type
• typedef _Ch_type value_type

Public Member Functions

• basic_regex ()
• basic_regex (const _Ch_type *__p, flag_type __f=regex_constants::ECMAScript)
• basic_regex (const _Ch_type *__p, std::size_t __len, flag_type __f)
• basic_regex (const basic_regex &__rhs)
• basic_regex (const basic_regex &&__rhs) noexcept
• template<typename _Ch_traits , typename _Ch_alloc > basic_regex (const std::basic_string< _Ch_type, _Ch_traits, _Ch_alloc > &__s, flag_type __f=regex_constants::ECMAScript)
• template<typename _InputIterator > basic_regex (_InputIterator __first, _InputIterator __last, flag_type __f=regex_constants::ECMAScript)
• basic_regex (initializer_list< _Ch_type > __l, flag_type __f=regex_constants::ECMAScript)
• ~basic_regex ()
• const __regex::_AutomatonPtr & _M_get_automaton () const
• basic_regex & assign (const basic_regex &__rhs)
• basic_regex & assign (basic_regex &&__rhs) noexcept
• basic_regex & assign (const _Ch_type *__p, flag_type __flags=regex_constants::ECMAScript)
• basic_regex & assign (const _Ch_type *__p, std::size_t __len, flag_type __flags)
• template<typename _Ch_typeraits , typename _Allocator > basic_regex & assign (const basic_string< _Ch_type, _Ch_typeraits, _Allocator > &__s, flag_type __flags=regex_constants::ECMAScript)
• template<typename _InputIterator > basic_regex & assign (_InputIterator __first, _InputIterator __last, flag_type __flags=regex_constants::ECMAScript)
• basic_regex & assign (initializer_list< _Ch_type > __l, flag_type __flags=regex_constants::ECMAScript)
• flag_type flags () const
• locale_type getloc () const
• locale_type imbue (locale_type __loc)
• unsigned int mark_count () const
• basic_regex & operator= (const basic_regex &__rhs)
• basic_regex & operator= (basic_regex &&__rhs) noexcept
• basic_regex & operator= (const _Ch_type *__p)
• template<typename _Ch_typeraits , typename _Allocator > basic_regex & operator= (const basic_string< _Ch_type, _Ch_typeraits, _Allocator > &__s)
• void swap (basic_regex &__rhs)

Static Public Attributes

Constants

std [28.8.1](1)

• static constexpr
  regex_constants::syntax_option_type icase
• static constexpr
  regex_constants::syntax_option_type nosubs
• static constexpr
  regex_constants::syntax_option_type optimize
• static constexpr
  regex_constants::syntax_option_type collate
• static constexpr
  regex_constants::syntax_option_type ECMAScript
• static constexpr
  regex_constants::syntax_option_type basic
• static constexpr
  regex_constants::syntax_option_type extended
• static constexpr
  regex_constants::syntax_option_type awk
• static constexpr
  regex_constants::syntax_option_type grep
• static constexpr
  regex_constants::syntax_option_type egrep

Protected Attributes

• __regex::_AutomatonPtr _M_automaton
• flag_type _M_flags
• _Rx_traits _M_traits

---

Detailed Description

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>
class std::basic_regex< _Ch_type, _Rx_traits >

Objects of specializations of this class represent regular expressions constructed from sequences of character type _Ch_type.

Storage for the regular expression is allocated and deallocated as necessary by the member functions of this class.

Definition at line 342 of file regex.h.

---

Constructor & Destructor Documentation

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

std::basic_regex< _Ch_type, _Rx_traits >::basic_regex

(

)

[inline]

Constructs a basic regular expression that does not match any character sequence.

Definition at line 384 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

std::basic_regex< _Ch_type, _Rx_traits >::basic_regex	(	const _Ch_type *	__p,
		flag_type	__f = regex_constants::ECMAScript
	)		[inline, explicit]

Constructs a basic regular expression from the sequence [__p, __p + char_traits<_Ch_type>::length(__p)) interpreted according to the flags in __f.

Parameters:

__p	A pointer to the start of a C-style null-terminated string containing a regular expression.
__f	Flags indicating the syntax rules and options.

Exceptions:

regex_error

if __p is not a valid regular expression.

Definition at line 402 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

std::basic_regex< _Ch_type, _Rx_traits >::basic_regex	(	const _Ch_type *	__p,
		std::size_t	__len,
		flag_type	__f
	)		[inline]

Constructs a basic regular expression from the sequence [p, p + len) interpreted according to the flags in f.

Parameters:

__p	A pointer to the start of a string containing a regular expression.
__len	The length of the string containing the regular expression.
__f	Flags indicating the syntax rules and options.

Exceptions:

regex_error

if __p is not a valid regular expression.

Definition at line 421 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

std::basic_regex< _Ch_type, _Rx_traits >::basic_regex

(

const basic_regex< _Ch_type, _Rx_traits > &

__rhs

)

[inline]

Copy-constructs a basic regular expression.

Parameters:

__rhs

A regex object.

Definition at line 431 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

std::basic_regex< _Ch_type, _Rx_traits >::basic_regex

(

const basic_regex< _Ch_type, _Rx_traits > &&

__rhs

)

[inline]

Move-constructs a basic regular expression.

Parameters:

__rhs

A regex object.

Definition at line 441 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

template<typename _Ch_traits , typename _Ch_alloc >

std::basic_regex< _Ch_type, _Rx_traits >::basic_regex	(	const std::basic_string< _Ch_type, _Ch_traits, _Ch_alloc > &	__s,
		flag_type	__f = regex_constants::ECMAScript
	)		[inline, explicit]

Constructs a basic regular expression from the string s interpreted according to the flags in f.

Parameters:

__s	A string containing a regular expression.
__f	Flags indicating the syntax rules and options.

Exceptions:

regex_error

if __s is not a valid regular expression.

Definition at line 457 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

template<typename _InputIterator >

std::basic_regex< _Ch_type, _Rx_traits >::basic_regex	(	_InputIterator	__first,
		_InputIterator	__last,
		flag_type	__f = regex_constants::ECMAScript
	)		[inline]

Constructs a basic regular expression from the range [first, last) interpreted according to the flags in f.

Parameters:

__first	The start of a range containing a valid regular expression.
__last	The end of a range containing a valid regular expression.
__f	The format flags of the regular expression.

Exceptions:

regex_error

if [__first, __last) is not a valid regular expression.

Definition at line 479 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

std::basic_regex< _Ch_type, _Rx_traits >::basic_regex	(	initializer_list< _Ch_type >	__l,
		flag_type	__f = regex_constants::ECMAScript
	)		[inline]

Constructs a basic regular expression from an initializer list.

Parameters:

__l	The initializer list.
__f	The format flags of the regular expression.

Exceptions:

regex_error

if __l is not a valid regular expression.

Definition at line 493 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

std::basic_regex< _Ch_type, _Rx_traits >::~basic_regex

(

)

[inline]

Destroys a basic regular expression.

Definition at line 503 of file regex.h.

---

Member Function Documentation

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::assign

(

const basic_regex< _Ch_type, _Rx_traits > &

__rhs

)

[inline]

the real assignment operator.

Parameters:

__rhs

Another regular expression object.

Definition at line 549 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::swap().

Referenced by std::basic_regex< _Ch_type, _Rx_traits >::operator=().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::assign

(

basic_regex< _Ch_type, _Rx_traits > &&

__rhs

)

[inline]

The move-assignment operator.

Parameters:

__rhs

Another regular expression object.

Definition at line 562 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::swap().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::assign	(	const _Ch_type *	__p,
		flag_type	__flags = regex_constants::ECMAScript
	)		[inline]

Assigns a new regular expression to a regex object from a C-style null-terminated string containing a regular expression pattern.

Parameters:

__p	A pointer to a C-style null-terminated string containing a regular expression pattern.
__flags	Syntax option flags.

Exceptions:

regex_error

if __p does not contain a valid regular expression pattern interpreted according to __flags. If regex_error is thrown, *this remains unchanged.

Definition at line 583 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::assign().

Referenced by std::basic_regex< _Ch_type, _Rx_traits >::assign().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::assign	(	const _Ch_type *	__p,
		std::size_t	__len,
		flag_type	__flags
	)		[inline]

Assigns a new regular expression to a regex object from a C-style string containing a regular expression pattern.

Parameters:

__p	A pointer to a C-style string containing a regular expression pattern.
__len	The length of the regular expression pattern string.
__flags	Syntax option flags.

Exceptions:

regex_error

if p does not contain a valid regular expression pattern interpreted according to __flags. If regex_error is thrown, *this remains unchanged.

Definition at line 601 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::assign().

Referenced by std::basic_regex< _Ch_type, _Rx_traits >::assign().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

template<typename _Ch_typeraits , typename _Allocator >

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::assign	(	const basic_string< _Ch_type, _Ch_typeraits, _Allocator > &	__s,
		flag_type	__flags = regex_constants::ECMAScript
	)		[inline]

Assigns a new regular expression to a regex object from a string containing a regular expression pattern.

Parameters:

__s	A string containing a regular expression pattern.
__flags	Syntax option flags.

Exceptions:

regex_error

if __s does not contain a valid regular expression pattern interpreted according to __flags. If regex_error is thrown, *this remains unchanged.

Definition at line 617 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::swap().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

template<typename _InputIterator >

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::assign	(	_InputIterator	__first,
		_InputIterator	__last,
		flag_type	__flags = regex_constants::ECMAScript
	)		[inline]

Assigns a new regular expression to a regex object.

Parameters:

__first	The start of a range containing a valid regular expression.
__last	The end of a range containing a valid regular expression.
__flags	Syntax option flags.

Exceptions:

regex_error

if p does not contain a valid regular expression pattern interpreted according to __flags. If regex_error is thrown, the object remains unchanged.

Definition at line 640 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::assign().

Referenced by std::basic_regex< _Ch_type, _Rx_traits >::assign().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::assign	(	initializer_list< _Ch_type >	__l,
		flag_type	__flags = regex_constants::ECMAScript
	)		[inline]

Assigns a new regular expression to a regex object.

Parameters:

__l	An initializer list representing a regular expression.
__flags	Syntax option flags.

Exceptions:

regex_error

if __l does not contain a valid regular expression pattern interpreted according to __flags. If regex_error is thrown, the object remains unchanged.

Definition at line 656 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::assign().

Referenced by std::basic_regex< _Ch_type, _Rx_traits >::assign().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

flag_type std::basic_regex< _Ch_type, _Rx_traits >::flags

(

)

const [inline]

Gets the flags used to construct the regular expression or in the last call to assign().

Definition at line 674 of file regex.h.

Referenced by std::basic_regex< _Ch_type, _Rx_traits >::operator=().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

locale_type std::basic_regex< _Ch_type, _Rx_traits >::getloc

(

)

const [inline]

Gets the locale currently imbued in the regular expression object.

Definition at line 692 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

locale_type std::basic_regex< _Ch_type, _Rx_traits >::imbue

(

locale_type

__loc

)

[inline]

Imbues the regular expression object with the given locale.

Parameters:

__loc

A locale.

Definition at line 684 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

unsigned int std::basic_regex< _Ch_type, _Rx_traits >::mark_count

(

)

const [inline]

Gets the number of marked subexpressions within the regular expression.

Definition at line 666 of file regex.h.

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::operator=

(

const basic_regex< _Ch_type, _Rx_traits > &

__rhs

)

[inline]

Assigns one regular expression to another.

Definition at line 510 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::assign().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::operator=

(

basic_regex< _Ch_type, _Rx_traits > &&

__rhs

)

[inline]

Move-assigns one regular expression to another.

Definition at line 517 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::assign().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::operator=

(

const _Ch_type *

__p

)

[inline]

Replaces a regular expression with a new one constructed from a C-style null-terminated string.

Parameters:

__p	A pointer to the start of a null-terminated C-style string containing a regular expression.

Definition at line 528 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::assign(), and std::basic_regex< _Ch_type, _Rx_traits >::flags().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

template<typename _Ch_typeraits , typename _Allocator >

basic_regex& std::basic_regex< _Ch_type, _Rx_traits >::operator=

(

const basic_string< _Ch_type, _Ch_typeraits, _Allocator > &

__s

)

[inline]

Replaces a regular expression with a new one constructed from a string.

Parameters:

__s	A pointer to a string containing a regular expression.

Definition at line 539 of file regex.h.

References std::basic_regex< _Ch_type, _Rx_traits >::assign(), and std::basic_regex< _Ch_type, _Rx_traits >::flags().

template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type>>

void std::basic_regex< _Ch_type, _Rx_traits >::swap

(

basic_regex< _Ch_type, _Rx_traits > &

__rhs

)

[inline]

Swaps the contents of two regular expression objects.

Parameters:

__rhs

Another regular expression object.

Definition at line 702 of file regex.h.

Referenced by std::basic_regex< _Ch_type, _Rx_traits >::assign(), and std::swap().

---

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

• regex.h