std::regex_token_iterator - Man Page
std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >
Synopsis
#include <regex>
Public Types
typedef std::ptrdiff_t difference_type
typedef std::forward_iterator_tag iterator_category
typedef std::input_iterator_tag iterator_concept
typedef const value_type * pointer
typedef const value_type & reference
typedef basic_regex< _Ch_type, _Rx_traits > regex_type
typedef sub_match< _Bi_iter > value_type
Public Member Functions
regex_token_iterator ()
Default constructs a regex_token_iterator.
template<std::size_t _Nm> regex_token_iterator (_Bi_iter __a, _Bi_iter __b, const regex_type &__re, const int(&__submatches)[_Nm], regex_constants::match_flag_type __m=regex_constants::match_default)
regex_token_iterator (_Bi_iter __a, _Bi_iter __b, const regex_type &__re, const std::vector< int > &__submatches, regex_constants::match_flag_type __m=regex_constants::match_default)
regex_token_iterator (_Bi_iter __a, _Bi_iter __b, const regex_type &__re, initializer_list< int > __submatches, regex_constants::match_flag_type __m=regex_constants::match_default)
regex_token_iterator (_Bi_iter __a, _Bi_iter __b, const regex_type &__re, int __submatch=0, regex_constants::match_flag_type __m=regex_constants::match_default)
template<std::size_t _Nm> regex_token_iterator (_Bi_iter, _Bi_iter, const regex_type &&, const int(&)[_Nm], regex_constants::match_flag_type=regex_constants::match_default)=delete
regex_token_iterator (_Bi_iter, _Bi_iter, const regex_type &&, const std::vector< int > &, regex_constants::match_flag_type=regex_constants::match_default)=delete
regex_token_iterator (_Bi_iter, _Bi_iter, const regex_type &&, initializer_list< int >, regex_constants::match_flag_type=regex_constants::match_default)=delete
regex_token_iterator (_Bi_iter, _Bi_iter, const regex_type &&, int=0, regex_constants::match_flag_type=regex_constants::match_default)=delete
regex_token_iterator (const regex_token_iterator &__rhs)
Copy constructs a regex_token_iterator.
const value_type & operator* () const
Dereferences a regex_token_iterator.
regex_token_iterator & operator++ ()
Increments a regex_token_iterator.
regex_token_iterator operator++ (int)
Postincrements a regex_token_iterator.
const value_type * operator-> () const
Selects a regex_token_iterator member.
regex_token_iterator & operator= (const regex_token_iterator &__rhs)
Assigns a regex_token_iterator to another.
bool operator== (const regex_token_iterator &__rhs) const
Compares a regex_token_iterator to another for equality.
bool operator== (default_sentinel_t) const noexcept
Detailed Description
template<typename _Bi_iter, typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type, typename _Rx_traits = regex_traits<_Ch_type>>
class std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >"Iterates over submatches in a range (or splits a text string).
The purpose of this iterator is to enumerate all, or all specified, matches of a regular expression within a text range. The dereferenced value of an iterator of this class is a std::sub_match object.
- Since
C++11
Constructor & Destructor Documentation
template<typename _Bi_iter , typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type, typename _Rx_traits = regex_traits<_Ch_type>> std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::regex_token_iterator () [inline]
Default constructs a regex_token_iterator. A default-constructed regex_token_iterator is a singular iterator that will compare equal to the one-past-the-end value for any iterator of the same type.
template<typename _Bi_iter , typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type, typename _Rx_traits = regex_traits<_Ch_type>> std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::regex_token_iterator (_Bi_iter __a, _Bi_iter __b, const regex_type & __re, int __submatch = 0, regex_constants::match_flag_type __m = regex_constants::match_default) [inline]
Constructs a regex_token_iterator...
Parameters
__a [IN] The start of the text to search.
__b [IN] One-past-the-end of the text to search.
__re [IN] The regular expression to search for.
__submatch [IN] Which submatch to return. There are some special values for this parameter:
- -1 each enumerated subexpression does NOT match the regular expression (aka field splitting)
- 0 the entire string matching the subexpression is returned for each match within the text.
- >0 enumerates only the indicated subexpression from a match within the text.
__m [IN] Policy flags for match rules.
template<typename _Bi_iter , typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type, typename _Rx_traits = regex_traits<_Ch_type>> std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::regex_token_iterator (_Bi_iter __a, _Bi_iter __b, const regex_type & __re, const std::vector< int > & __submatches, regex_constants::match_flag_type __m = regex_constants::match_default) [inline]
Constructs a regex_token_iterator...
Parameters
__a [IN] The start of the text to search.
__b [IN] One-past-the-end of the text to search.
__re [IN] The regular expression to search for.
__submatches [IN] A list of subexpressions to return for each regular expression match within the text.
__m [IN] Policy flags for match rules.
template<typename _Bi_iter , typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type, typename _Rx_traits = regex_traits<_Ch_type>> std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::regex_token_iterator (_Bi_iter __a, _Bi_iter __b, const regex_type & __re, initializer_list< int > __submatches, regex_constants::match_flag_type __m = regex_constants::match_default) [inline]
Constructs a regex_token_iterator...
Parameters
__a [IN] The start of the text to search.
__b [IN] One-past-the-end of the text to search.
__re [IN] The regular expression to search for.
__submatches [IN] A list of subexpressions to return for each regular expression match within the text.
__m [IN] Policy flags for match rules.
template<typename _Bi_iter , typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type, typename _Rx_traits = regex_traits<_Ch_type>> template<std::size_t _Nm> std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::regex_token_iterator (_Bi_iter __a, _Bi_iter __b, const regex_type & __re, const int(&) __submatches[_Nm], regex_constants::match_flag_type __m = regex_constants::match_default) [inline]
Constructs a regex_token_iterator...
Parameters
__a [IN] The start of the text to search.
__b [IN] One-past-the-end of the text to search.
__re [IN] The regular expression to search for.
__submatches [IN] A list of subexpressions to return for each regular expression match within the text.
__m [IN] Policy flags for match rules.
template<typename _Bi_iter , typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type, typename _Rx_traits = regex_traits<_Ch_type>> std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::regex_token_iterator (const regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits > & __rhs) [inline]
Copy constructs a regex_token_iterator.
Parameters
__rhs [IN] A regex_token_iterator to copy.
Member Function Documentation
template<typename _Bi_iter , typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type, typename _Rx_traits = regex_traits<_Ch_type>> const value_type & std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::operator* () const [inline]
Dereferences a regex_token_iterator.
template<typename _Bi_iter , typename _Ch_type , typename _Rx_traits > regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits > & std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::operator++ ()
Increments a regex_token_iterator.
template<typename _Bi_iter , typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type, typename _Rx_traits = regex_traits<_Ch_type>> regex_token_iterator std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::operator++ (int ) [inline]
Postincrements a regex_token_iterator.
template<typename _Bi_iter , typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type, typename _Rx_traits = regex_traits<_Ch_type>> const value_type * std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::operator-> () const [inline]
Selects a regex_token_iterator member.
template<typename _Bi_iter , typename _Ch_type , typename _Rx_traits > regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits > & std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::operator= (const regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits > & __rhs)
Assigns a regex_token_iterator to another.
Parameters
__rhs [IN] A regex_token_iterator to copy.
template<typename _Bi_iter , typename _Ch_type , typename _Rx_traits > bool std::regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits >::operator== (const regex_token_iterator< _Bi_iter, _Ch_type, _Rx_traits > & __rhs) const
Compares a regex_token_iterator to another for equality.
Author
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