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std::basic_regex(3) Library Functions Manual std::basic_regex(3)

NAME

std::basic_regex -

SYNOPSIS

Public Types


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

Public Member Functions


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

Static Public Attributes

Constants
tr1 [7.8.1] std [28.8.1]



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


Protected Attributes


flag_type _M_flags
unsigned int _M_mark_count
string_type _M_pattern
_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 709 of file tr1_impl/regex.

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 750 of file tr1_impl/regex.

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 766 of file tr1_impl/regex.

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 782 of file tr1_impl/regex.

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 791 of file tr1_impl/regex.

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 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 807 of file tr1_impl/regex.

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 826 of file tr1_impl/regex.

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 840 of file tr1_impl/regex.

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 849 of file tr1_impl/regex.

Member Function Documentation

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 __f = 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 982 of file tr1_impl/regex.

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 _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 966 of file tr1_impl/regex.

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

Definition at line 943 of file tr1_impl/regex.

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, 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 927 of file tr1_impl/regex.

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, 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 909 of file tr1_impl/regex.

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 basic_regex< _Ch_type, _Rx_traits > & __that) [inline]

the real assignment operator. Parameters:

that Another regular expression object.

Definition at line 888 of file tr1_impl/regex.

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>> 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 1001 of file tr1_impl/regex.

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 1019 of file tr1_impl/regex.

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 1011 of file tr1_impl/regex.

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 993 of file tr1_impl/regex.

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:

A pointer to a string containing a regular expression.

Definition at line 878 of file tr1_impl/regex.

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>> 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:

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

Definition at line 867 of file tr1_impl/regex.

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>> 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 856 of file tr1_impl/regex.

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

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 1029 of file tr1_impl/regex.

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

Author

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19 Jun 2018 libstdc++