table of contents
std::basic_regex< _Ch_type, _Rx_traits >(3cxx) | std::basic_regex< _Ch_type, _Rx_traits >(3cxx) |
NAME¶
std::basic_regex< _Ch_type, _Rx_traits >
SYNOPSIS¶
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
Constants¶
std [28.8.1](1)
static constexpr flag_type icase
static constexpr flag_type nosubs
static constexpr flag_type optimize
static constexpr flag_type collate
static constexpr flag_type ECMAScript
static constexpr flag_type basic
static constexpr flag_type extended
static constexpr flag_type awk
static constexpr flag_type grep
static constexpr flag_type egrep
template<typename , typename , typename , bool > class
__detail::_Executor
template<typename _Bp , typename _Ap , typename _Cp , typename _Rp ,
__detail::_RegexExecutorPolicy , bool > bool
__detail::__regex_algo_impl (_Bp, _Bp, match_results< _Bp,
_Ap > &, const basic_regex< _Cp, _Rp > &,
regex_constants::match_flag_type)
basic_regex ()
basic_regex (const _Ch_type *__p, flag_type
__f=ECMAScript)
Constructs a basic regular expression from the sequence [__p, __p +
char_traits<_Ch_type>::length(__p)) interpreted according to the flags
in __f. basic_regex (const _Ch_type *__p, std::size_t __len,
flag_type __f=ECMAScript)
Constructs a basic regular expression from the sequence [p, p + len)
interpreted according to the flags in f. basic_regex (const
basic_regex &__rhs)=default
Copy-constructs a basic regular expression. basic_regex
(basic_regex &&__rhs) noexcept=default
Move-constructs a basic regular expression. template<typename _Ch_traits ,
typename _Ch_alloc > basic_regex (const
std::basic_string< _Ch_type, _Ch_traits, _Ch_alloc > &__s,
flag_type __f=ECMAScript)
Constructs a basic regular expression from the string s interpreted
according to the flags in f. template<typename _FwdIter >
basic_regex (_FwdIter __first, _FwdIter __last, flag_type
__f=ECMAScript)
Constructs a basic regular expression from the range [first, last) interpreted
according to the flags in f. basic_regex
(initializer_list< _Ch_type > __l, flag_type
__f=ECMAScript)
Constructs a basic regular expression from an initializer list.
~basic_regex ()
Destroys a basic regular expression. basic_regex & operator=
(const basic_regex &__rhs)
Assigns one regular expression to another. basic_regex &
operator= (basic_regex &&__rhs) noexcept
Move-assigns one regular expression to another. basic_regex &
operator= (const _Ch_type *__p)
Replaces a regular expression with a new one constructed from a C-style
null-terminated string. basic_regex & operator=
(initializer_list< _Ch_type > __l)
Replaces a regular expression with a new one constructed from an initializer
list. template<typename _Ch_traits , typename _Alloc >
basic_regex & operator= (const basic_string<
_Ch_type, _Ch_traits, _Alloc > &__s)
Replaces a regular expression with a new one constructed from a string.
basic_regex & assign (const basic_regex &__rhs)
the real assignment operator. basic_regex & assign
(basic_regex &&__rhs) noexcept
The move-assignment operator. basic_regex & assign (const
_Ch_type *__p, flag_type __flags=ECMAScript)
Assigns a new regular expression to a regex object from a C-style
null-terminated string containing a regular expression pattern.
basic_regex & assign (const _Ch_type *__p, std::size_t
__len, flag_type __flags)
Assigns a new regular expression to a regex object from a C-style string
containing a regular expression pattern. template<typename _Ch_traits ,
typename _Alloc > basic_regex & assign (const
basic_string< _Ch_type, _Ch_traits, _Alloc > &__s,
flag_type __flags=ECMAScript)
Assigns a new regular expression to a regex object from a string containing a
regular expression pattern. template<typename _InputIterator >
basic_regex & assign (_InputIterator __first,
_InputIterator __last, flag_type __flags=ECMAScript)
Assigns a new regular expression to a regex object. basic_regex &
assign (initializer_list< _Ch_type > __l,
flag_type __flags=ECMAScript)
Assigns a new regular expression to a regex object. unsigned int
mark_count () const
Gets the number of marked subexpressions within the regular expression.
flag_type flags () const
Gets the flags used to construct the regular expression or in the last call to
assign(). locale_type imbue (locale_type __loc)
Imbues the regular expression object with the given locale. locale_type
getloc () const
Gets the locale currently imbued in the regular expression object. void
swap (basic_regex &__rhs)
Swaps the contents of two regular expression objects.
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 386 of file regex.h.
Author¶
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Sun Feb 7 2021 | libstdc++ |