| // -*- C++ -*- | 
 | //===--------------------------- regex ------------------------------------===// | 
 | // | 
 | //                     The LLVM Compiler Infrastructure | 
 | // | 
 | // This file is dual licensed under the MIT and the University of Illinois Open | 
 | // Source Licenses. See LICENSE.TXT for details. | 
 | // | 
 | //===----------------------------------------------------------------------===// | 
 |  | 
 | #ifndef _LIBCPP_REGEX | 
 | #define _LIBCPP_REGEX | 
 |  | 
 | /* | 
 |     regex synopsis | 
 |  | 
 | #include <initializer_list> | 
 |  | 
 | namespace std | 
 | { | 
 |  | 
 | namespace regex_constants | 
 | { | 
 |  | 
 | emum syntax_option_type | 
 | { | 
 |     icase      = unspecified, | 
 |     nosubs     = unspecified, | 
 |     optimize   = unspecified, | 
 |     collate    = unspecified, | 
 |     ECMAScript = unspecified, | 
 |     basic      = unspecified, | 
 |     extended   = unspecified, | 
 |     awk        = unspecified, | 
 |     grep       = unspecified, | 
 |     egrep      = unspecified | 
 | }; | 
 |  | 
 | constexpr syntax_option_type operator~(syntax_option_type f); | 
 | constexpr syntax_option_type operator&(syntax_option_type lhs, syntax_option_type rhs); | 
 | constexpr syntax_option_type operator|(syntax_option_type lhs, syntax_option_type rhs); | 
 |  | 
 | enum match_flag_type | 
 | { | 
 |     match_default     = 0, | 
 |     match_not_bol     = unspecified, | 
 |     match_not_eol     = unspecified, | 
 |     match_not_bow     = unspecified, | 
 |     match_not_eow     = unspecified, | 
 |     match_any         = unspecified, | 
 |     match_not_null    = unspecified, | 
 |     match_continuous  = unspecified, | 
 |     match_prev_avail  = unspecified, | 
 |     format_default    = 0, | 
 |     format_sed        = unspecified, | 
 |     format_no_copy    = unspecified, | 
 |     format_first_only = unspecified | 
 | }; | 
 |  | 
 | constexpr match_flag_type operator~(match_flag_type f); | 
 | constexpr match_flag_type operator&(match_flag_type lhs, match_flag_type rhs); | 
 | constexpr match_flag_type operator|(match_flag_type lhs, match_flag_type rhs); | 
 |  | 
 | enum error_type | 
 | { | 
 |     error_collate    = unspecified, | 
 |     error_ctype      = unspecified, | 
 |     error_escape     = unspecified, | 
 |     error_backref    = unspecified, | 
 |     error_brack      = unspecified, | 
 |     error_paren      = unspecified, | 
 |     error_brace      = unspecified, | 
 |     error_badbrace   = unspecified, | 
 |     error_range      = unspecified, | 
 |     error_space      = unspecified, | 
 |     error_badrepeat  = unspecified, | 
 |     error_complexity = unspecified, | 
 |     error_stack      = unspecified | 
 | }; | 
 |  | 
 | }  // regex_constants | 
 |  | 
 | class regex_error | 
 |     : public runtime_error | 
 | { | 
 | public: | 
 |     explicit regex_error(regex_constants::error_type ecode); | 
 |     regex_constants::error_type code() const; | 
 | }; | 
 |  | 
 | template <class charT> | 
 | struct regex_traits | 
 | { | 
 | public: | 
 |     typedef charT                   char_type; | 
 |     typedef basic_string<char_type> string_type; | 
 |     typedef locale                  locale_type; | 
 |     typedef /bitmask_type/          char_class_type; | 
 |  | 
 |     regex_traits(); | 
 |  | 
 |     static size_t length(const char_type* p); | 
 |     charT translate(charT c) const; | 
 |     charT translate_nocase(charT c) const; | 
 |     template <class ForwardIterator> | 
 |         string_type | 
 |         transform(ForwardIterator first, ForwardIterator last) const; | 
 |     template <class ForwardIterator> | 
 |         string_type | 
 |         transform_primary( ForwardIterator first, ForwardIterator last) const; | 
 |     template <class ForwardIterator> | 
 |         string_type | 
 |         lookup_collatename(ForwardIterator first, ForwardIterator last) const; | 
 |     template <class ForwardIterator> | 
 |         char_class_type | 
 |         lookup_classname(ForwardIterator first, ForwardIterator last, | 
 |                          bool icase = false) const; | 
 |     bool isctype(charT c, char_class_type f) const; | 
 |     int value(charT ch, int radix) const; | 
 |     locale_type imbue(locale_type l); | 
 |     locale_type getloc()const; | 
 | }; | 
 |  | 
 | template <class charT, class traits = regex_traits<charT>> | 
 | class basic_regex | 
 | { | 
 | public: | 
 |     // types: | 
 |     typedef charT                               value_type; | 
 |     typedef regex_constants::syntax_option_type flag_type; | 
 |     typedef typename traits::locale_type        locale_type; | 
 |  | 
 |     // constants: | 
 |     static constexpr regex_constants::syntax_option_type icase = regex_constants::icase; | 
 |     static constexpr regex_constants::syntax_option_type nosubs = regex_constants::nosubs; | 
 |     static constexpr regex_constants::syntax_option_type optimize = regex_constants::optimize; | 
 |     static constexpr regex_constants::syntax_option_type collate = regex_constants::collate; | 
 |     static constexpr regex_constants::syntax_option_type ECMAScript = regex_constants::ECMAScript; | 
 |     static constexpr regex_constants::syntax_option_type basic = regex_constants::basic; | 
 |     static constexpr regex_constants::syntax_option_type extended = regex_constants::extended; | 
 |     static constexpr regex_constants::syntax_option_type awk = regex_constants::awk; | 
 |     static constexpr regex_constants::syntax_option_type grep = regex_constants::grep; | 
 |     static constexpr regex_constants::syntax_option_type egrep = regex_constants::egrep; | 
 |  | 
 |     // construct/copy/destroy: | 
 |     basic_regex(); | 
 |     explicit basic_regex(const charT* p, flag_type f = regex_constants::ECMAScript); | 
 |     basic_regex(const charT* p, size_t len, flag_type f); | 
 |     basic_regex(const basic_regex&); | 
 |     basic_regex(basic_regex&&); | 
 |     template <class ST, class SA> | 
 |         explicit basic_regex(const basic_string<charT, ST, SA>& p, | 
 |                              flag_type f = regex_constants::ECMAScript); | 
 |     template <class ForwardIterator> | 
 |         basic_regex(ForwardIterator first, ForwardIterator last, | 
 |                     flag_type f = regex_constants::ECMAScript); | 
 |     basic_regex(initializer_list<charT>, flag_type = regex_constants::ECMAScript); | 
 |  | 
 |     ~basic_regex(); | 
 |  | 
 |     basic_regex& operator=(const basic_regex&); | 
 |     basic_regex& operator=(basic_regex&&); | 
 |     basic_regex& operator=(const charT* ptr); | 
 |     basic_regex& operator=(initializer_list<charT> il); | 
 |     template <class ST, class SA> | 
 |         basic_regex& operator=(const basic_string<charT, ST, SA>& p); | 
 |  | 
 |     // assign: | 
 |     basic_regex& assign(const basic_regex& that); | 
 |     basic_regex& assign(basic_regex&& that); | 
 |     basic_regex& assign(const charT* ptr, flag_type f = regex_constants::ECMAScript); | 
 |     basic_regex& assign(const charT* p, size_t len, flag_type f); | 
 |     template <class string_traits, class A> | 
 |         basic_regex& assign(const basic_string<charT, string_traits, A>& s, | 
 |                             flag_type f = regex_constants::ECMAScript); | 
 |     template <class InputIterator> | 
 |         basic_regex& assign(InputIterator first, InputIterator last, | 
 |                             flag_type f = regex_constants::ECMAScript); | 
 |     basic_regex& assign(initializer_list<charT>, flag_type = regex_constants::ECMAScript); | 
 |  | 
 |     // const operations: | 
 |     unsigned mark_count() const; | 
 |     flag_type flags() const; | 
 |  | 
 |     // locale: | 
 |     locale_type imbue(locale_type loc); | 
 |     locale_type getloc() const; | 
 |  | 
 |     // swap: | 
 |     void swap(basic_regex&); | 
 | }; | 
 |  | 
 | typedef basic_regex<char>    regex; | 
 | typedef basic_regex<wchar_t> wregex; | 
 |  | 
 | template <class charT, class traits> | 
 |     void swap(basic_regex<charT, traits>& e1, basic_regex<charT, traits>& e2); | 
 |  | 
 | template <class BidirectionalIterator> | 
 | class sub_match | 
 |     : public pair<BidirectionalIterator, BidirectionalIterator> | 
 | { | 
 | public: | 
 |     typedef typename iterator_traits<BidirectionalIterator>::value_type value_type; | 
 |     typedef typename iterator_traits<BidirectionalIterator>::difference_type difference_type; | 
 |     typedef BidirectionalIterator                                      iterator; | 
 |     typedef basic_string<value_type>                                string_type; | 
 |  | 
 |     bool matched; | 
 |  | 
 |     constexpr sub_match(); | 
 |  | 
 |     difference_type length() const; | 
 |     operator string_type() const; | 
 |     string_type str() const; | 
 |  | 
 |     int compare(const sub_match& s) const; | 
 |     int compare(const string_type& s) const; | 
 |     int compare(const value_type* s) const; | 
 | }; | 
 |  | 
 | typedef sub_match<const char*>             csub_match; | 
 | typedef sub_match<const wchar_t*>          wcsub_match; | 
 | typedef sub_match<string::const_iterator>  ssub_match; | 
 | typedef sub_match<wstring::const_iterator> wssub_match; | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator==(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator!=(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator<(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator<=(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator>=(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator>(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool | 
 |     operator==(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool | 
 |     operator!=(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool | 
 |     operator<(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs, | 
 |               const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool | 
 |     operator>(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs, | 
 |               const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool operator>=(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs, | 
 |                     const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool | 
 |     operator<=(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool | 
 |     operator==(const sub_match<BiIter>& lhs, | 
 |                const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool | 
 |     operator!=(const sub_match<BiIter>& lhs, | 
 |                const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool | 
 |     operator<(const sub_match<BiIter>& lhs, | 
 |               const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool operator>(const sub_match<BiIter>& lhs, | 
 |                    const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool | 
 |     operator>=(const sub_match<BiIter>& lhs, | 
 |                const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs); | 
 |  | 
 | template <class BiIter, class ST, class SA> | 
 |     bool | 
 |     operator<=(const sub_match<BiIter>& lhs, | 
 |                const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator==(typename iterator_traits<BiIter>::value_type const* lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator!=(typename iterator_traits<BiIter>::value_type const* lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator<(typename iterator_traits<BiIter>::value_type const* lhs, | 
 |               const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator>(typename iterator_traits<BiIter>::value_type const* lhs, | 
 |               const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator>=(typename iterator_traits<BiIter>::value_type const* lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator<=(typename iterator_traits<BiIter>::value_type const* lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator==(const sub_match<BiIter>& lhs, | 
 |                typename iterator_traits<BiIter>::value_type const* rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator!=(const sub_match<BiIter>& lhs, | 
 |                typename iterator_traits<BiIter>::value_type const* rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator<(const sub_match<BiIter>& lhs, | 
 |               typename iterator_traits<BiIter>::value_type const* rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator>(const sub_match<BiIter>& lhs, | 
 |               typename iterator_traits<BiIter>::value_type const* rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator>=(const sub_match<BiIter>& lhs, | 
 |                typename iterator_traits<BiIter>::value_type const* rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator<=(const sub_match<BiIter>& lhs, | 
 |                typename iterator_traits<BiIter>::value_type const* rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator==(typename iterator_traits<BiIter>::value_type const& lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator!=(typename iterator_traits<BiIter>::value_type const& lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator<(typename iterator_traits<BiIter>::value_type const& lhs, | 
 |               const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator>(typename iterator_traits<BiIter>::value_type const& lhs, | 
 |               const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator>=(typename iterator_traits<BiIter>::value_type const& lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator<=(typename iterator_traits<BiIter>::value_type const& lhs, | 
 |                const sub_match<BiIter>& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator==(const sub_match<BiIter>& lhs, | 
 |                typename iterator_traits<BiIter>::value_type const& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator!=(const sub_match<BiIter>& lhs, | 
 |                typename iterator_traits<BiIter>::value_type const& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator<(const sub_match<BiIter>& lhs, | 
 |               typename iterator_traits<BiIter>::value_type const& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator>(const sub_match<BiIter>& lhs, | 
 |               typename iterator_traits<BiIter>::value_type const& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator>=(const sub_match<BiIter>& lhs, | 
 |                typename iterator_traits<BiIter>::value_type const& rhs); | 
 |  | 
 | template <class BiIter> | 
 |     bool | 
 |     operator<=(const sub_match<BiIter>& lhs, | 
 |                typename iterator_traits<BiIter>::value_type const& rhs); | 
 |  | 
 | template <class charT, class ST, class BiIter> | 
 |     basic_ostream<charT, ST>& | 
 |     operator<<(basic_ostream<charT, ST>& os, const sub_match<BiIter>& m); | 
 |  | 
 | template <class BidirectionalIterator, | 
 |           class Allocator = allocator<sub_match<BidirectionalIterator>>> | 
 | class match_results | 
 | { | 
 | public: | 
 |     typedef sub_match<BidirectionalIterator>                  value_type; | 
 |     typedef const value_type&                                 const_reference; | 
 |     typedef const_reference                                   reference; | 
 |     typedef /implementation-defined/                          const_iterator; | 
 |     typedef const_iterator                                    iterator; | 
 |     typedef typename iterator_traits<BidirectionalIterator>::difference_type difference_type; | 
 |     typedef typename allocator_traits<Allocator>::size_type   size_type; | 
 |     typedef Allocator                                         allocator_type; | 
 |     typedef typename iterator_traits<BidirectionalIterator>::value_type char_type; | 
 |     typedef basic_string<char_type>                           string_type; | 
 |  | 
 |     // construct/copy/destroy: | 
 |     explicit match_results(const Allocator& a = Allocator()); | 
 |     match_results(const match_results& m); | 
 |     match_results(match_results&& m); | 
 |     match_results& operator=(const match_results& m); | 
 |     match_results& operator=(match_results&& m); | 
 |     ~match_results(); | 
 |  | 
 |     bool ready() const; | 
 |  | 
 |     // size: | 
 |     size_type size() const; | 
 |     size_type max_size() const; | 
 |     bool empty() const; | 
 |  | 
 |     // element access: | 
 |     difference_type length(size_type sub = 0) const; | 
 |     difference_type position(size_type sub = 0) const; | 
 |     string_type str(size_type sub = 0) const; | 
 |     const_reference operator[](size_type n) const; | 
 |  | 
 |     const_reference prefix() const; | 
 |     const_reference suffix() const; | 
 |  | 
 |     const_iterator begin() const; | 
 |     const_iterator end() const; | 
 |     const_iterator cbegin() const; | 
 |     const_iterator cend() const; | 
 |  | 
 |     // format: | 
 |     template <class OutputIter> | 
 |         OutputIter | 
 |         format(OutputIter out, const char_type* fmt_first, | 
 |                const char_type* fmt_last, | 
 |                regex_constants::match_flag_type flags = regex_constants::format_default) const; | 
 |     template <class OutputIter, class ST, class SA> | 
 |         OutputIter | 
 |         format(OutputIter out, const basic_string<char_type, ST, SA>& fmt, | 
 |                regex_constants::match_flag_type flags = regex_constants::format_default) const; | 
 |     template <class ST, class SA> | 
 |         basic_string<char_type, ST, SA> | 
 |         format(const basic_string<char_type, ST, SA>& fmt, | 
 |                regex_constants::match_flag_type flags = regex_constants::format_default) const; | 
 |     string_type | 
 |         format(const char_type* fmt, | 
 |                regex_constants::match_flag_type flags = regex_constants::format_default) const; | 
 |  | 
 |     // allocator: | 
 |     allocator_type get_allocator() const; | 
 |  | 
 |     // swap: | 
 |     void swap(match_results& that); | 
 | }; | 
 |  | 
 | typedef match_results<const char*>             cmatch; | 
 | typedef match_results<const wchar_t*>          wcmatch; | 
 | typedef match_results<string::const_iterator>  smatch; | 
 | typedef match_results<wstring::const_iterator> wsmatch; | 
 |  | 
 | template <class BidirectionalIterator, class Allocator> | 
 |     bool | 
 |     operator==(const match_results<BidirectionalIterator, Allocator>& m1, | 
 |                const match_results<BidirectionalIterator, Allocator>& m2); | 
 |  | 
 | template <class BidirectionalIterator, class Allocator> | 
 |     bool | 
 |     operator!=(const match_results<BidirectionalIterator, Allocator>& m1, | 
 |                const match_results<BidirectionalIterator, Allocator>& m2); | 
 |  | 
 | template <class BidirectionalIterator, class Allocator> | 
 |     void | 
 |     swap(match_results<BidirectionalIterator, Allocator>& m1, | 
 |          match_results<BidirectionalIterator, Allocator>& m2); | 
 |  | 
 | template <class BidirectionalIterator, class Allocator, class charT, class traits> | 
 |     bool | 
 |     regex_match(BidirectionalIterator first, BidirectionalIterator last, | 
 |                 match_results<BidirectionalIterator, Allocator>& m, | 
 |                 const basic_regex<charT, traits>& e, | 
 |                 regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class BidirectionalIterator, class charT, class traits> | 
 |     bool | 
 |     regex_match(BidirectionalIterator first, BidirectionalIterator last, | 
 |                 const basic_regex<charT, traits>& e, | 
 |                 regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class charT, class Allocator, class traits> | 
 |     bool | 
 |     regex_match(const charT* str, match_results<const charT*, Allocator>& m, | 
 |                 const basic_regex<charT, traits>& e, | 
 |                 regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class ST, class SA, class Allocator, class charT, class traits> | 
 |     bool | 
 |     regex_match(const basic_string<charT, ST, SA>& s, | 
 |                 match_results<typename basic_string<charT, ST, SA>::const_iterator, Allocator>& m, | 
 |                 const basic_regex<charT, traits>& e, | 
 |                 regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class charT, class traits> | 
 |     bool | 
 |     regex_match(const charT* str, const basic_regex<charT, traits>& e, | 
 |                 regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class ST, class SA, class charT, class traits> | 
 |     bool | 
 |     regex_match(const basic_string<charT, ST, SA>& s, | 
 |                 const basic_regex<charT, traits>& e, | 
 |                 regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class BidirectionalIterator, class Allocator, class charT, class traits> | 
 |     bool | 
 |     regex_search(BidirectionalIterator first, BidirectionalIterator last, | 
 |                  match_results<BidirectionalIterator, Allocator>& m, | 
 |                  const basic_regex<charT, traits>& e, | 
 |                  regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class BidirectionalIterator, class charT, class traits> | 
 |     bool | 
 |     regex_search(BidirectionalIterator first, BidirectionalIterator last, | 
 |                  const basic_regex<charT, traits>& e, | 
 |                  regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class charT, class Allocator, class traits> | 
 |     bool | 
 |     regex_search(const charT* str, match_results<const charT*, Allocator>& m, | 
 |                  const basic_regex<charT, traits>& e, | 
 |                  regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class charT, class traits> | 
 |     bool | 
 |     regex_search(const charT* str, const basic_regex<charT, traits>& e, | 
 |                  regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class ST, class SA, class charT, class traits> | 
 |     bool | 
 |     regex_search(const basic_string<charT, ST, SA>& s, | 
 |                  const basic_regex<charT, traits>& e, | 
 |                  regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class ST, class SA, class Allocator, class charT, class traits> | 
 |     bool | 
 |     regex_search(const basic_string<charT, ST, SA>& s, | 
 |                  match_results<typename basic_string<charT, ST, SA>::const_iterator, Allocator>& m, | 
 |                  const basic_regex<charT, traits>& e, | 
 |                  regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class OutputIterator, class BidirectionalIterator, | 
 |           class traits, class charT, class ST, class SA> | 
 |     OutputIterator | 
 |     regex_replace(OutputIterator out, | 
 |                   BidirectionalIterator first, BidirectionalIterator last, | 
 |                   const basic_regex<charT, traits>& e, | 
 |                   const basic_string<charT, ST, SA>& fmt, | 
 |                   regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class OutputIterator, class BidirectionalIterator, | 
 |           class traits, class charT> | 
 |     OutputIterator | 
 |     regex_replace(OutputIterator out, | 
 |                   BidirectionalIterator first, BidirectionalIterator last, | 
 |                   const basic_regex<charT, traits>& e, const charT* fmt, | 
 |                   regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class traits, class charT, class ST, class SA, class FST, class FSA>> | 
 |     basic_string<charT, ST, SA> | 
 |     regex_replace(const basic_string<charT, ST, SA>& s, | 
 |                   const basic_regex<charT, traits>& e, | 
 |                   const basic_string<charT, FST, FSA>& fmt, | 
 |                   regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class traits, class charT, class ST, class SA> | 
 |     basic_string<charT, ST, SA> | 
 |     regex_replace(const basic_string<charT, ST, SA>& s, | 
 |                   const basic_regex<charT, traits>& e, const charT* fmt, | 
 |                   regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class traits, class charT, class ST, class SA> | 
 |     basic_string<charT> | 
 |     regex_replace(const charT* s, | 
 |                   const basic_regex<charT, traits>& e, | 
 |                   const basic_string<charT, ST, SA>& fmt, | 
 |                   regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class traits, class charT> | 
 |     basic_string<charT> | 
 |     regex_replace(const charT* s, | 
 |                   const basic_regex<charT, traits>& e, | 
 |                   const charT* fmt, | 
 |                   regex_constants::match_flag_type flags = regex_constants::match_default); | 
 |  | 
 | template <class BidirectionalIterator, | 
 |           class charT = typename iterator_traits< BidirectionalIterator>::value_type, | 
 |           class traits = regex_traits<charT>> | 
 | class regex_iterator | 
 | { | 
 | public: | 
 |     typedef basic_regex<charT, traits>           regex_type; | 
 |     typedef match_results<BidirectionalIterator> value_type; | 
 |     typedef ptrdiff_t                            difference_type; | 
 |     typedef const value_type*                    pointer; | 
 |     typedef const value_type&                    reference; | 
 |     typedef forward_iterator_tag                 iterator_category; | 
 |  | 
 |     regex_iterator(); | 
 |     regex_iterator(BidirectionalIterator a, BidirectionalIterator b, | 
 |                    const regex_type& re, | 
 |                    regex_constants::match_flag_type m = regex_constants::match_default); | 
 |     regex_iterator(const regex_iterator&); | 
 |     regex_iterator& operator=(const regex_iterator&); | 
 |  | 
 |     bool operator==(const regex_iterator&) const; | 
 |     bool operator!=(const regex_iterator&) const; | 
 |  | 
 |     const value_type& operator*() const; | 
 |     const value_type* operator->() const; | 
 |  | 
 |     regex_iterator& operator++(); | 
 |     regex_iterator operator++(int); | 
 | }; | 
 |  | 
 | typedef regex_iterator<const char*>             cregex_iterator; | 
 | typedef regex_iterator<const wchar_t*>          wcregex_iterator; | 
 | typedef regex_iterator<string::const_iterator>  sregex_iterator; | 
 | typedef regex_iterator<wstring::const_iterator> wsregex_iterator; | 
 |  | 
 | template <class BidirectionalIterator, | 
 |           class charT = typename iterator_traits< BidirectionalIterator>::value_type, | 
 |           class traits = regex_traits<charT>> | 
 | class regex_token_iterator | 
 | { | 
 | public: | 
 |     typedef basic_regex<charT, traits>       regex_type; | 
 |     typedef sub_match<BidirectionalIterator> value_type; | 
 |     typedef ptrdiff_t                        difference_type; | 
 |     typedef const value_type*                pointer; | 
 |     typedef const value_type&                reference; | 
 |     typedef forward_iterator_tag             iterator_category; | 
 |  | 
 |     regex_token_iterator(); | 
 |     regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, | 
 |                          const regex_type& re, int submatch = 0, | 
 |                          regex_constants::match_flag_type m = regex_constants::match_default); | 
 |     regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, | 
 |                          const regex_type& re, const vector<int>& submatches, | 
 |                          regex_constants::match_flag_type m = regex_constants::match_default); | 
 |     regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, | 
 |                          const regex_type& re, initializer_list<int> submatches, | 
 |                          regex_constants::match_flag_type m = regex_constants::match_default); | 
 |     template <size_t N> | 
 |         regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, | 
 |                              const regex_type& re, const int (&submatches)[N], | 
 |                              regex_constants::match_flag_type m = regex_constants::match_default); | 
 |     regex_token_iterator(const regex_token_iterator&); | 
 |     regex_token_iterator& operator=(const regex_token_iterator&); | 
 |  | 
 |     bool operator==(const regex_token_iterator&) const; | 
 |     bool operator!=(const regex_token_iterator&) const; | 
 |  | 
 |     const value_type& operator*() const; | 
 |     const value_type* operator->() const; | 
 |  | 
 |     regex_token_iterator& operator++(); | 
 |     regex_token_iterator operator++(int); | 
 | }; | 
 |  | 
 | typedef regex_token_iterator<const char*>             cregex_token_iterator; | 
 | typedef regex_token_iterator<const wchar_t*>          wcregex_token_iterator; | 
 | typedef regex_token_iterator<string::const_iterator>  sregex_token_iterator; | 
 | typedef regex_token_iterator<wstring::const_iterator> wsregex_token_iterator; | 
 |  | 
 | } // std | 
 | */ | 
 |  | 
 | #include <__config> | 
 | #include <stdexcept> | 
 | #include <__locale> | 
 | #include <initializer_list> | 
 | #include <utility> | 
 | #include <iterator> | 
 | #include <string> | 
 | #include <memory> | 
 | #include <vector> | 
 | #include <deque> | 
 |  | 
 | #pragma GCC system_header | 
 |  | 
 | _LIBCPP_BEGIN_NAMESPACE_STD | 
 |  | 
 | namespace regex_constants | 
 | { | 
 |  | 
 | // syntax_option_type | 
 |  | 
 | enum syntax_option_type | 
 | { | 
 |     icase      = 1 << 0, | 
 |     nosubs     = 1 << 1, | 
 |     optimize   = 1 << 2, | 
 |     collate    = 1 << 3, | 
 |     ECMAScript = 0, | 
 |     basic      = 1 << 4, | 
 |     extended   = 1 << 5, | 
 |     awk        = 1 << 6, | 
 |     grep       = 1 << 7, | 
 |     egrep      = 1 << 8 | 
 | }; | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | syntax_option_type | 
 | operator~(syntax_option_type __x) | 
 | { | 
 |     return syntax_option_type(~int(__x)); | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | syntax_option_type | 
 | operator&(syntax_option_type __x, syntax_option_type __y) | 
 | { | 
 |     return syntax_option_type(int(__x) & int(__y)); | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | syntax_option_type | 
 | operator|(syntax_option_type __x, syntax_option_type __y) | 
 | { | 
 |     return syntax_option_type(int(__x) | int(__y)); | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | syntax_option_type | 
 | operator^(syntax_option_type __x, syntax_option_type __y) | 
 | { | 
 |     return syntax_option_type(int(__x) ^ int(__y)); | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | syntax_option_type& | 
 | operator&=(syntax_option_type& __x, syntax_option_type __y) | 
 | { | 
 |     __x = __x & __y; | 
 |     return __x; | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | syntax_option_type& | 
 | operator|=(syntax_option_type& __x, syntax_option_type __y) | 
 | { | 
 |     __x = __x | __y; | 
 |     return __x; | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | syntax_option_type& | 
 | operator^=(syntax_option_type& __x, syntax_option_type __y) | 
 | { | 
 |     __x = __x ^ __y; | 
 |     return __x; | 
 | } | 
 |  | 
 | // match_flag_type | 
 |  | 
 | enum match_flag_type | 
 | { | 
 |     match_default     = 0, | 
 |     match_not_bol     = 1 << 0, | 
 |     match_not_eol     = 1 << 1, | 
 |     match_not_bow     = 1 << 2, | 
 |     match_not_eow     = 1 << 3, | 
 |     match_any         = 1 << 4, | 
 |     match_not_null    = 1 << 5, | 
 |     match_continuous  = 1 << 6, | 
 |     match_prev_avail  = 1 << 7, | 
 |     format_default    = 0, | 
 |     format_sed        = 1 << 8, | 
 |     format_no_copy    = 1 << 9, | 
 |     format_first_only = 1 << 10, | 
 |     __no_update_pos   = 1 << 11 | 
 | }; | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | match_flag_type | 
 | operator~(match_flag_type __x) | 
 | { | 
 |     return match_flag_type(~int(__x)); | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | match_flag_type | 
 | operator&(match_flag_type __x, match_flag_type __y) | 
 | { | 
 |     return match_flag_type(int(__x) & int(__y)); | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | match_flag_type | 
 | operator|(match_flag_type __x, match_flag_type __y) | 
 | { | 
 |     return match_flag_type(int(__x) | int(__y)); | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | match_flag_type | 
 | operator^(match_flag_type __x, match_flag_type __y) | 
 | { | 
 |     return match_flag_type(int(__x) ^ int(__y)); | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | match_flag_type& | 
 | operator&=(match_flag_type& __x, match_flag_type __y) | 
 | { | 
 |     __x = __x & __y; | 
 |     return __x; | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | match_flag_type& | 
 | operator|=(match_flag_type& __x, match_flag_type __y) | 
 | { | 
 |     __x = __x | __y; | 
 |     return __x; | 
 | } | 
 |  | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | /*constexpr*/ | 
 | match_flag_type& | 
 | operator^=(match_flag_type& __x, match_flag_type __y) | 
 | { | 
 |     __x = __x ^ __y; | 
 |     return __x; | 
 | } | 
 |  | 
 | enum error_type | 
 | { | 
 |     error_collate = 1, | 
 |     error_ctype, | 
 |     error_escape, | 
 |     error_backref, | 
 |     error_brack, | 
 |     error_paren, | 
 |     error_brace, | 
 |     error_badbrace, | 
 |     error_range, | 
 |     error_space, | 
 |     error_badrepeat, | 
 |     error_complexity, | 
 |     error_stack, | 
 |     __re_err_grammar, | 
 |     __re_err_empty, | 
 |     __re_err_unknown | 
 | }; | 
 |  | 
 | }  // regex_constants | 
 |  | 
 | class _LIBCPP_EXCEPTION_ABI regex_error | 
 |     : public runtime_error | 
 | { | 
 |     regex_constants::error_type __code_; | 
 | public: | 
 |     explicit regex_error(regex_constants::error_type __ecode); | 
 |     virtual ~regex_error() throw(); | 
 |      _LIBCPP_INLINE_VISIBILITY | 
 |     regex_constants::error_type code() const {return __code_;} | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | struct _LIBCPP_VISIBLE regex_traits | 
 | { | 
 | public: | 
 |     typedef _CharT                  char_type; | 
 |     typedef basic_string<char_type> string_type; | 
 |     typedef locale                  locale_type; | 
 |     typedef ctype_base::mask        char_class_type; | 
 |  | 
 |     static const char_class_type __regex_word = 0x80; | 
 | private: | 
 |     locale __loc_; | 
 |     const ctype<char_type>* __ct_; | 
 |     const collate<char_type>* __col_; | 
 |  | 
 | public: | 
 |     regex_traits(); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     static size_t length(const char_type* __p) | 
 |         {return char_traits<char_type>::length(__p);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     char_type translate(char_type __c) const {return __c;} | 
 |     char_type translate_nocase(char_type __c) const; | 
 |     template <class _ForwardIterator> | 
 |         string_type | 
 |         transform(_ForwardIterator __f, _ForwardIterator __l) const; | 
 |     template <class _ForwardIterator> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         string_type | 
 |         transform_primary( _ForwardIterator __f, _ForwardIterator __l) const | 
 |             {return __transform_primary(__f, __l, char_type());} | 
 |     template <class _ForwardIterator> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         string_type | 
 |         lookup_collatename(_ForwardIterator __f, _ForwardIterator __l) const | 
 |             {return __lookup_collatename(__f, __l, char_type());} | 
 |     template <class _ForwardIterator> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         char_class_type | 
 |         lookup_classname(_ForwardIterator __f, _ForwardIterator __l, | 
 |                          bool __icase = false) const | 
 |             {return __lookup_classname(__f, __l, __icase, char_type());} | 
 |     bool isctype(char_type __c, char_class_type __m) const; | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     int value(char_type __ch, int __radix) const | 
 |         {return __value(__ch, __radix);} | 
 |     locale_type imbue(locale_type __l); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     locale_type getloc()const {return __loc_;} | 
 |  | 
 | private: | 
 |     void __init(); | 
 |  | 
 |     template <class _ForwardIterator> | 
 |         string_type | 
 |         __transform_primary(_ForwardIterator __f, _ForwardIterator __l, char) const; | 
 |     template <class _ForwardIterator> | 
 |         string_type | 
 |         __transform_primary(_ForwardIterator __f, _ForwardIterator __l, wchar_t) const; | 
 |  | 
 |     template <class _ForwardIterator> | 
 |         string_type | 
 |         __lookup_collatename(_ForwardIterator __f, _ForwardIterator __l, char) const; | 
 |     template <class _ForwardIterator> | 
 |         string_type | 
 |         __lookup_collatename(_ForwardIterator __f, _ForwardIterator __l, wchar_t) const; | 
 |  | 
 |     template <class _ForwardIterator> | 
 |         char_class_type | 
 |         __lookup_classname(_ForwardIterator __f, _ForwardIterator __l, | 
 |                            bool __icase, char) const; | 
 |     template <class _ForwardIterator> | 
 |         char_class_type | 
 |         __lookup_classname(_ForwardIterator __f, _ForwardIterator __l, | 
 |                            bool __icase, wchar_t) const; | 
 |  | 
 |     static int __value(unsigned char __ch, int __radix); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     int __value(char __ch, int __radix) const | 
 |         {return __value(static_cast<unsigned char>(__ch), __radix);} | 
 |     int __value(wchar_t __ch, int __radix) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | regex_traits<_CharT>::regex_traits() | 
 | { | 
 |     __init(); | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | typename regex_traits<_CharT>::char_type | 
 | regex_traits<_CharT>::translate_nocase(char_type __c) const | 
 | { | 
 |     return __ct_->tolower(__c); | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | template <class _ForwardIterator> | 
 | typename regex_traits<_CharT>::string_type | 
 | regex_traits<_CharT>::transform(_ForwardIterator __f, _ForwardIterator __l) const | 
 | { | 
 |     string_type __s(__f, __l); | 
 |     return __col_->transform(__s.data(), __s.data() + __s.size()); | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | regex_traits<_CharT>::__init() | 
 | { | 
 |     __ct_ = &use_facet<ctype<char_type> >(__loc_); | 
 |     __col_ = &use_facet<collate<char_type> >(__loc_); | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | typename regex_traits<_CharT>::locale_type | 
 | regex_traits<_CharT>::imbue(locale_type __l) | 
 | { | 
 |     locale __r = __loc_; | 
 |     __loc_ = __l; | 
 |     __init(); | 
 |     return __r; | 
 | } | 
 |  | 
 | // transform_primary is very FreeBSD-specific | 
 |  | 
 | template <class _CharT> | 
 | template <class _ForwardIterator> | 
 | typename regex_traits<_CharT>::string_type | 
 | regex_traits<_CharT>::__transform_primary(_ForwardIterator __f, | 
 |                                           _ForwardIterator __l, char) const | 
 | { | 
 |     const string_type __s(__f, __l); | 
 |     string_type __d = __col_->transform(__s.data(), __s.data() + __s.size()); | 
 |     switch (__d.size()) | 
 |     { | 
 |     case 1: | 
 |         break; | 
 |     case 12: | 
 |         __d[11] = __d[3]; | 
 |         break; | 
 |     default: | 
 |         __d.clear(); | 
 |         break; | 
 |     } | 
 |     return __d; | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | template <class _ForwardIterator> | 
 | typename regex_traits<_CharT>::string_type | 
 | regex_traits<_CharT>::__transform_primary(_ForwardIterator __f, | 
 |                                           _ForwardIterator __l, wchar_t) const | 
 | { | 
 |     const string_type __s(__f, __l); | 
 |     string_type __d = __col_->transform(__s.data(), __s.data() + __s.size()); | 
 |     switch (__d.size()) | 
 |     { | 
 |     case 1: | 
 |         break; | 
 |     case 3: | 
 |         __d[2] = __d[0]; | 
 |         break; | 
 |     default: | 
 |         __d.clear(); | 
 |         break; | 
 |     } | 
 |     return __d; | 
 | } | 
 |  | 
 | // lookup_collatename is very FreeBSD-specific | 
 |  | 
 | string __get_collation_name(const char* __s); | 
 |  | 
 | template <class _CharT> | 
 | template <class _ForwardIterator> | 
 | typename regex_traits<_CharT>::string_type | 
 | regex_traits<_CharT>::__lookup_collatename(_ForwardIterator __f, | 
 |                                            _ForwardIterator __l, char) const | 
 | { | 
 |     string_type __s(__f, __l); | 
 |     string_type __r; | 
 |     if (!__s.empty()) | 
 |     { | 
 |         __r = __get_collation_name(__s.c_str()); | 
 |         if (__r.empty() && __s.size() <= 2) | 
 |         { | 
 |             __r = __col_->transform(__s.data(), __s.data() + __s.size()); | 
 |             if (__r.size() == 1 || __r.size() == 12) | 
 |                 __r = __s; | 
 |             else | 
 |                 __r.clear(); | 
 |         } | 
 |     } | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | template <class _ForwardIterator> | 
 | typename regex_traits<_CharT>::string_type | 
 | regex_traits<_CharT>::__lookup_collatename(_ForwardIterator __f, | 
 |                                            _ForwardIterator __l, wchar_t) const | 
 | { | 
 |     string_type __s(__f, __l); | 
 |     string __n; | 
 |     __n.reserve(__s.size()); | 
 |     for (typename string_type::const_iterator __i = __s.begin(), __e = __s.end(); | 
 |                                                               __i != __e; ++__i) | 
 |     { | 
 |         if (static_cast<unsigned>(*__i) >= 127) | 
 |             return string_type(); | 
 |         __n.push_back(char(*__i)); | 
 |     } | 
 |     string_type __r; | 
 |     if (!__s.empty()) | 
 |     { | 
 |         __n = __get_collation_name(__n.c_str()); | 
 |         if (!__n.empty()) | 
 |             __r.assign(__n.begin(), __n.end()); | 
 |         else if (__s.size() <= 2) | 
 |         { | 
 |             __r = __col_->transform(__s.data(), __s.data() + __s.size()); | 
 |             if (__r.size() == 1 || __r.size() == 3) | 
 |                 __r = __s; | 
 |             else | 
 |                 __r.clear(); | 
 |         } | 
 |     } | 
 |     return __r; | 
 | } | 
 |  | 
 | // lookup_classname | 
 |  | 
 | ctype_base::mask __get_classname(const char* __s, bool __icase); | 
 |  | 
 | template <class _CharT> | 
 | template <class _ForwardIterator> | 
 | typename regex_traits<_CharT>::char_class_type | 
 | regex_traits<_CharT>::__lookup_classname(_ForwardIterator __f, | 
 |                                          _ForwardIterator __l, | 
 |                                          bool __icase, char) const | 
 | { | 
 |     string_type __s(__f, __l); | 
 |     __ct_->tolower(&__s[0], &__s[0] + __s.size()); | 
 |     return __get_classname(__s.c_str(), __icase); | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | template <class _ForwardIterator> | 
 | typename regex_traits<_CharT>::char_class_type | 
 | regex_traits<_CharT>::__lookup_classname(_ForwardIterator __f, | 
 |                                          _ForwardIterator __l, | 
 |                                          bool __icase, wchar_t) const | 
 | { | 
 |     string_type __s(__f, __l); | 
 |     __ct_->tolower(&__s[0], &__s[0] + __s.size()); | 
 |     string __n; | 
 |     __n.reserve(__s.size()); | 
 |     for (typename string_type::const_iterator __i = __s.begin(), __e = __s.end(); | 
 |                                                               __i != __e; ++__i) | 
 |     { | 
 |         if (static_cast<unsigned>(*__i) >= 127) | 
 |             return char_class_type(); | 
 |         __n.push_back(char(*__i)); | 
 |     } | 
 |     return __get_classname(__n.c_str(), __icase); | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | bool | 
 | regex_traits<_CharT>::isctype(char_type __c, char_class_type __m) const | 
 | { | 
 |     if (__ct_->is(__m, __c)) | 
 |         return true; | 
 |     return (__c == '_' && (__m & __regex_word)); | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | int | 
 | regex_traits<_CharT>::__value(unsigned char __ch, int __radix) | 
 | { | 
 |     if ((__ch & 0xF8u) == 0x30)  // '0' <= __ch && __ch <= '7' | 
 |         return __ch - '0'; | 
 |     if (__radix != 8) | 
 |     { | 
 |         if ((__ch & 0xFEu) == 0x38)  // '8' <= __ch && __ch <= '9' | 
 |             return __ch - '0'; | 
 |         if (__radix == 16) | 
 |         { | 
 |             __ch |= 0x20;  // tolower | 
 |             if ('a' <= __ch && __ch <= 'f') | 
 |                 return __ch - ('a' - 10); | 
 |         } | 
 |     } | 
 |     return -1; | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | int | 
 | regex_traits<_CharT>::__value(wchar_t __ch, int __radix) const | 
 | { | 
 |     return __value(static_cast<unsigned char>(__ct_->narrow(__ch, char_type())), __radix); | 
 | } | 
 |  | 
 | template <class _CharT> class __node; | 
 |  | 
 | template <class _BidirectionalIterator> class sub_match; | 
 |  | 
 | template <class _BidirectionalIterator, | 
 |           class _Allocator = allocator<sub_match<_BidirectionalIterator> > > | 
 | class match_results; | 
 |  | 
 | template <class _CharT> | 
 | struct __state | 
 | { | 
 |     enum | 
 |     { | 
 |         __end_state = -1000, | 
 |         __consume_input,  // -999 | 
 |         __begin_marked_expr, // -998 | 
 |         __end_marked_expr,   // -997 | 
 |         __pop_state,           // -996 | 
 |         __accept_and_consume,  // -995 | 
 |         __accept_but_not_consume,  // -994 | 
 |         __reject,                  // -993 | 
 |         __split, | 
 |         __repeat | 
 |     }; | 
 |  | 
 |     int __do_; | 
 |     const _CharT* __first_; | 
 |     const _CharT* __current_; | 
 |     const _CharT* __last_; | 
 |     vector<sub_match<const _CharT*> > __sub_matches_; | 
 |     vector<pair<size_t, const _CharT*> > __loop_data_; | 
 |     const __node<_CharT>* __node_; | 
 |     regex_constants::match_flag_type __flags_; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __state() | 
 |         : __do_(0), __first_(nullptr), __current_(nullptr), __last_(nullptr), | 
 |           __node_(nullptr), __flags_() {} | 
 | }; | 
 |  | 
 | // __node | 
 |  | 
 | template <class _CharT> | 
 | class __node | 
 | { | 
 |     __node(const __node&); | 
 |     __node& operator=(const __node&); | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __node() {} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     virtual ~__node() {} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     virtual void __exec(__state&) const {}; | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     virtual void __exec_split(bool, __state&) const {}; | 
 | }; | 
 |  | 
 | // __end_state | 
 |  | 
 | template <class _CharT> | 
 | class __end_state | 
 |     : public __node<_CharT> | 
 | { | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __end_state() {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __end_state<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     __s.__do_ = __state::__end_state; | 
 | } | 
 |  | 
 | // __has_one_state | 
 |  | 
 | template <class _CharT> | 
 | class __has_one_state | 
 |     : public __node<_CharT> | 
 | { | 
 |     __node<_CharT>* __first_; | 
 |  | 
 | public: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __has_one_state(__node<_CharT>* __s) | 
 |         : __first_(__s) {} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __node<_CharT>*  first() const {return __first_;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __node<_CharT>*& first()       {return __first_;} | 
 | }; | 
 |  | 
 | // __owns_one_state | 
 |  | 
 | template <class _CharT> | 
 | class __owns_one_state | 
 |     : public __has_one_state<_CharT> | 
 | { | 
 |     typedef __has_one_state<_CharT> base; | 
 |  | 
 | public: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __owns_one_state(__node<_CharT>* __s) | 
 |         : base(__s) {} | 
 |  | 
 |     virtual ~__owns_one_state(); | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | __owns_one_state<_CharT>::~__owns_one_state() | 
 | { | 
 |     delete this->first(); | 
 | } | 
 |  | 
 | // __empty_state | 
 |  | 
 | template <class _CharT> | 
 | class __empty_state | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __empty_state(__node<_CharT>* __s) | 
 |         : base(__s) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __empty_state<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     __s.__do_ = __state::__accept_but_not_consume; | 
 |     __s.__node_ = this->first(); | 
 | } | 
 |  | 
 | // __empty_non_own_state | 
 |  | 
 | template <class _CharT> | 
 | class __empty_non_own_state | 
 |     : public __has_one_state<_CharT> | 
 | { | 
 |     typedef __has_one_state<_CharT> base; | 
 |  | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __empty_non_own_state(__node<_CharT>* __s) | 
 |         : base(__s) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __empty_non_own_state<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     __s.__do_ = __state::__accept_but_not_consume; | 
 |     __s.__node_ = this->first(); | 
 | } | 
 |  | 
 | // __repeat_one_loop | 
 |  | 
 | template <class _CharT> | 
 | class __repeat_one_loop | 
 |     : public __has_one_state<_CharT> | 
 | { | 
 |     typedef __has_one_state<_CharT> base; | 
 |  | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __repeat_one_loop(__node<_CharT>* __s) | 
 |         : base(__s) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __repeat_one_loop<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     __s.__do_ = __state::__repeat; | 
 |     __s.__node_ = this->first(); | 
 | } | 
 |  | 
 | // __owns_two_states | 
 |  | 
 | template <class _CharT> | 
 | class __owns_two_states | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     base* __second_; | 
 |  | 
 | public: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __owns_two_states(__node<_CharT>* __s1, base* __s2) | 
 |         : base(__s1), __second_(__s2) {} | 
 |  | 
 |     virtual ~__owns_two_states(); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     base*  second() const {return __second_;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     base*& second()       {return __second_;} | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | __owns_two_states<_CharT>::~__owns_two_states() | 
 | { | 
 |     delete __second_; | 
 | } | 
 |  | 
 | // __loop | 
 |  | 
 | template <class _CharT> | 
 | class __loop | 
 |     : public __owns_two_states<_CharT> | 
 | { | 
 |     typedef __owns_two_states<_CharT> base; | 
 |  | 
 |     size_t __min_; | 
 |     size_t __max_; | 
 |     unsigned __loop_id_; | 
 |     unsigned __mexp_begin_; | 
 |     unsigned __mexp_end_; | 
 |     bool __greedy_; | 
 |  | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __loop(unsigned __loop_id, | 
 |                           __node<_CharT>* __s1, __owns_one_state<_CharT>* __s2, | 
 |                           unsigned __mexp_begin, unsigned __mexp_end, | 
 |                           bool __greedy = true, | 
 |                           size_t __min = 0, | 
 |                           size_t __max = numeric_limits<size_t>::max()) | 
 |         : base(__s1, __s2), __min_(__min), __max_(__max), __loop_id_(__loop_id), | 
 |           __mexp_begin_(__mexp_begin), __mexp_end_(__mexp_end), | 
 |           __greedy_(__greedy) {} | 
 |  | 
 |     virtual void __exec(__state& __s) const; | 
 |     virtual void __exec_split(bool __second, __state& __s) const; | 
 |  | 
 | private: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __init_repeat(__state& __s) const | 
 |     { | 
 |         __s.__loop_data_[__loop_id_].second = __s.__current_; | 
 |         for (size_t __i = __mexp_begin_-1; __i != __mexp_end_-1; ++__i) | 
 |         { | 
 |             __s.__sub_matches_[__i].first = __s.__last_; | 
 |             __s.__sub_matches_[__i].second = __s.__last_; | 
 |             __s.__sub_matches_[__i].matched = false; | 
 |         } | 
 |     } | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __loop<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     if (__s.__do_ == __state::__repeat) | 
 |     { | 
 |         bool __do_repeat = ++__s.__loop_data_[__loop_id_].first < __max_; | 
 |         bool __do_alt = __s.__loop_data_[__loop_id_].first >= __min_; | 
 |         if (__do_repeat && __do_alt && | 
 |                                __s.__loop_data_[__loop_id_].second == __s.__current_) | 
 |             __do_repeat = false; | 
 |         if (__do_repeat && __do_alt) | 
 |             __s.__do_ = __state::__split; | 
 |         else if (__do_repeat) | 
 |         { | 
 |             __s.__do_ = __state::__accept_but_not_consume; | 
 |             __s.__node_ = this->first(); | 
 |             __init_repeat(__s); | 
 |         } | 
 |         else | 
 |         { | 
 |             __s.__do_ = __state::__accept_but_not_consume; | 
 |             __s.__node_ = this->second(); | 
 |         } | 
 |     } | 
 |     else | 
 |     { | 
 |         __s.__loop_data_[__loop_id_].first = 0; | 
 |         bool __do_repeat = 0 < __max_; | 
 |         bool __do_alt = 0 >= __min_; | 
 |         if (__do_repeat && __do_alt) | 
 |             __s.__do_ = __state::__split; | 
 |         else if (__do_repeat) | 
 |         { | 
 |             __s.__do_ = __state::__accept_but_not_consume; | 
 |             __s.__node_ = this->first(); | 
 |             __init_repeat(__s); | 
 |         } | 
 |         else | 
 |         { | 
 |             __s.__do_ = __state::__accept_but_not_consume; | 
 |             __s.__node_ = this->second(); | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __loop<_CharT>::__exec_split(bool __second, __state& __s) const | 
 | { | 
 |     __s.__do_ = __state::__accept_but_not_consume; | 
 |     if (__greedy_ != __second) | 
 |     { | 
 |         __s.__node_ = this->first(); | 
 |         __init_repeat(__s); | 
 |     } | 
 |     else | 
 |         __s.__node_ = this->second(); | 
 | } | 
 |  | 
 | // __alternate | 
 |  | 
 | template <class _CharT> | 
 | class __alternate | 
 |     : public __owns_two_states<_CharT> | 
 | { | 
 |     typedef __owns_two_states<_CharT> base; | 
 |  | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __alternate(__owns_one_state<_CharT>* __s1, | 
 |                          __owns_one_state<_CharT>* __s2) | 
 |         : base(__s1, __s2) {} | 
 |  | 
 |     virtual void __exec(__state& __s) const; | 
 |     virtual void __exec_split(bool __second, __state& __s) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __alternate<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     __s.__do_ = __state::__split; | 
 | } | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __alternate<_CharT>::__exec_split(bool __second, __state& __s) const | 
 | { | 
 |     __s.__do_ = __state::__accept_but_not_consume; | 
 |     if (__second) | 
 |         __s.__node_ = this->second(); | 
 |     else | 
 |         __s.__node_ = this->first(); | 
 | } | 
 |  | 
 | // __begin_marked_subexpression | 
 |  | 
 | template <class _CharT> | 
 | class __begin_marked_subexpression | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     unsigned __mexp_; | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __begin_marked_subexpression(unsigned __mexp, __node<_CharT>* __s) | 
 |         : base(__s), __mexp_(__mexp) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __begin_marked_subexpression<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     __s.__do_ = __state::__accept_but_not_consume; | 
 |     __s.__sub_matches_[__mexp_-1].first = __s.__current_; | 
 |     __s.__node_ = this->first(); | 
 | } | 
 |  | 
 | // __end_marked_subexpression | 
 |  | 
 | template <class _CharT> | 
 | class __end_marked_subexpression | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     unsigned __mexp_; | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __end_marked_subexpression(unsigned __mexp, __node<_CharT>* __s) | 
 |         : base(__s), __mexp_(__mexp) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __end_marked_subexpression<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     __s.__do_ = __state::__accept_but_not_consume; | 
 |     __s.__sub_matches_[__mexp_-1].second = __s.__current_; | 
 |     __s.__sub_matches_[__mexp_-1].matched = true; | 
 |     __s.__node_ = this->first(); | 
 | } | 
 |  | 
 | // __back_ref | 
 |  | 
 | template <class _CharT> | 
 | class __back_ref | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     unsigned __mexp_; | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __back_ref(unsigned __mexp, __node<_CharT>* __s) | 
 |         : base(__s), __mexp_(__mexp) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __back_ref<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     sub_match<const _CharT*>& __sm = __s.__sub_matches_[__mexp_-1]; | 
 |     if (__sm.matched) | 
 |     { | 
 |         ptrdiff_t __len = __sm.second - __sm.first; | 
 |         if (__s.__last_ - __s.__current_ >= __len && | 
 |             _STD::equal(__sm.first, __sm.second, __s.__current_)) | 
 |         { | 
 |             __s.__do_ = __state::__accept_but_not_consume; | 
 |             __s.__current_ += __len; | 
 |             __s.__node_ = this->first(); | 
 |         } | 
 |         else | 
 |         { | 
 |             __s.__do_ = __state::__reject; | 
 |             __s.__node_ = nullptr; | 
 |         } | 
 |     } | 
 |     else | 
 |     { | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | // __back_ref_icase | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | class __back_ref_icase | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     _Traits __traits_; | 
 |     unsigned __mexp_; | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __back_ref_icase(const _Traits& __traits, unsigned __mexp, | 
 |                               __node<_CharT>* __s) | 
 |         : base(__s), __traits_(__traits), __mexp_(__mexp) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | __back_ref_icase<_CharT, _Traits>::__exec(__state& __s) const | 
 | { | 
 |     sub_match<const _CharT*>& __sm = __s.__sub_matches_[__mexp_-1]; | 
 |     if (__sm.matched) | 
 |     { | 
 |         ptrdiff_t __len = __sm.second - __sm.first; | 
 |         if (__s.__last_ - __s.__current_ >= __len) | 
 |         { | 
 |             for (ptrdiff_t __i = 0; __i < __len; ++__i) | 
 |             { | 
 |                 if (__traits_.translate_nocase(__sm.first[__i]) != | 
 |                                 __traits_.translate_nocase(__s.__current_[__i])) | 
 |                     goto __not_equal; | 
 |             } | 
 |             __s.__do_ = __state::__accept_but_not_consume; | 
 |             __s.__current_ += __len; | 
 |             __s.__node_ = this->first(); | 
 |         } | 
 |         else | 
 |         { | 
 |             __s.__do_ = __state::__reject; | 
 |             __s.__node_ = nullptr; | 
 |         } | 
 |     } | 
 |     else | 
 |     { | 
 | __not_equal: | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | // __back_ref_collate | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | class __back_ref_collate | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     _Traits __traits_; | 
 |     unsigned __mexp_; | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __back_ref_collate(const _Traits& __traits, unsigned __mexp, | 
 |                               __node<_CharT>* __s) | 
 |         : base(__s), __traits_(__traits), __mexp_(__mexp) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | __back_ref_collate<_CharT, _Traits>::__exec(__state& __s) const | 
 | { | 
 |     sub_match<const _CharT*>& __sm = __s.__sub_matches_[__mexp_-1]; | 
 |     if (__sm.matched) | 
 |     { | 
 |         ptrdiff_t __len = __sm.second - __sm.first; | 
 |         if (__s.__last_ - __s.__current_ >= __len) | 
 |         { | 
 |             for (ptrdiff_t __i = 0; __i < __len; ++__i) | 
 |             { | 
 |                 if (__traits_.translate(__sm.first[__i]) != | 
 |                                        __traits_.translate(__s.__current_[__i])) | 
 |                     goto __not_equal; | 
 |             } | 
 |             __s.__do_ = __state::__accept_but_not_consume; | 
 |             __s.__current_ += __len; | 
 |             __s.__node_ = this->first(); | 
 |         } | 
 |         else | 
 |         { | 
 |             __s.__do_ = __state::__reject; | 
 |             __s.__node_ = nullptr; | 
 |         } | 
 |     } | 
 |     else | 
 |     { | 
 | __not_equal: | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | // __word_boundary | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | class __word_boundary | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     _Traits __traits_; | 
 |     bool __invert_; | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit __word_boundary(const _Traits& __traits, bool __invert, | 
 |                              __node<_CharT>* __s) | 
 |         : base(__s), __traits_(__traits), __invert_(__invert) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | __word_boundary<_CharT, _Traits>::__exec(__state& __s) const | 
 | { | 
 |     bool __is_word_b = false; | 
 |     if (__s.__first_ != __s.__last_) | 
 |     { | 
 |         if (__s.__current_ == __s.__last_) | 
 |         { | 
 |             if (!(__s.__flags_ & regex_constants::match_not_eow)) | 
 |             { | 
 |                 _CharT __c = __s.__current_[-1]; | 
 |                 __is_word_b = __c == '_' || | 
 |                               __traits_.isctype(__c, ctype_base::alnum); | 
 |             } | 
 |         } | 
 |         else if (__s.__current_ == __s.__first_ && | 
 |                 !(__s.__flags_ & regex_constants::match_prev_avail)) | 
 |         { | 
 |             if (!(__s.__flags_ & regex_constants::match_not_bow)) | 
 |             { | 
 |                 _CharT __c = *__s.__current_; | 
 |                 __is_word_b = __c == '_' || | 
 |                               __traits_.isctype(__c, ctype_base::alnum); | 
 |             } | 
 |         } | 
 |         else | 
 |         { | 
 |             _CharT __c1 = __s.__current_[-1]; | 
 |             _CharT __c2 = *__s.__current_; | 
 |             bool __is_c1_b = __c1 == '_' || | 
 |                              __traits_.isctype(__c1, ctype_base::alnum); | 
 |             bool __is_c2_b = __c2 == '_' || | 
 |                              __traits_.isctype(__c2, ctype_base::alnum); | 
 |             __is_word_b = __is_c1_b != __is_c2_b; | 
 |         } | 
 |     } | 
 |     if (__is_word_b != __invert_) | 
 |     { | 
 |         __s.__do_ = __state::__accept_but_not_consume; | 
 |         __s.__node_ = this->first(); | 
 |     } | 
 |     else | 
 |     { | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | // __r_anchor | 
 |  | 
 | template <class _CharT> | 
 | class __r_anchor | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __r_anchor(__node<_CharT>* __s) | 
 |         : base(__s) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __r_anchor<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     if (__s.__current_ == __s.__last_) | 
 |     { | 
 |         __s.__do_ = __state::__accept_but_not_consume; | 
 |         __s.__node_ = this->first(); | 
 |     } | 
 |     else | 
 |     { | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | // __match_any | 
 |  | 
 | template <class _CharT> | 
 | class __match_any | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __match_any(__node<_CharT>* __s) | 
 |         : base(__s) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __match_any<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     if (__s.__current_ != __s.__last_ && *__s.__current_ != 0) | 
 |     { | 
 |         __s.__do_ = __state::__accept_and_consume; | 
 |         ++__s.__current_; | 
 |         __s.__node_ = this->first(); | 
 |     } | 
 |     else | 
 |     { | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | // __match_any_but_newline | 
 |  | 
 | template <class _CharT> | 
 | class __match_any_but_newline | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __match_any_but_newline(__node<_CharT>* __s) | 
 |         : base(__s) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | // __match_char | 
 |  | 
 | template <class _CharT> | 
 | class __match_char | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     _CharT __c_; | 
 |  | 
 |     __match_char(const __match_char&); | 
 |     __match_char& operator=(const __match_char&); | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __match_char(_CharT __c, __node<_CharT>* __s) | 
 |         : base(__s), __c_(__c) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT> | 
 | void | 
 | __match_char<_CharT>::__exec(__state& __s) const | 
 | { | 
 |     if (__s.__current_ != __s.__last_ && *__s.__current_ == __c_) | 
 |     { | 
 |         __s.__do_ = __state::__accept_and_consume; | 
 |         ++__s.__current_; | 
 |         __s.__node_ = this->first(); | 
 |     } | 
 |     else | 
 |     { | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | // __match_char_icase | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | class __match_char_icase | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     _Traits __traits_; | 
 |     _CharT __c_; | 
 |  | 
 |     __match_char_icase(const __match_char_icase&); | 
 |     __match_char_icase& operator=(const __match_char_icase&); | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __match_char_icase(const _Traits& __traits, _CharT __c, __node<_CharT>* __s) | 
 |         : base(__s), __traits_(__traits), __c_(__traits.translate_nocase(__c)) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | __match_char_icase<_CharT, _Traits>::__exec(__state& __s) const | 
 | { | 
 |     if (__s.__current_ != __s.__last_ && | 
 |         __traits_.translate_nocase(*__s.__current_) == __c_) | 
 |     { | 
 |         __s.__do_ = __state::__accept_and_consume; | 
 |         ++__s.__current_; | 
 |         __s.__node_ = this->first(); | 
 |     } | 
 |     else | 
 |     { | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | // __match_char_collate | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | class __match_char_collate | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     _Traits __traits_; | 
 |     _CharT __c_; | 
 |  | 
 |     __match_char_collate(const __match_char_collate&); | 
 |     __match_char_collate& operator=(const __match_char_collate&); | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __match_char_collate(const _Traits& __traits, _CharT __c, __node<_CharT>* __s) | 
 |         : base(__s), __traits_(__traits), __c_(__traits.translate(__c)) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | __match_char_collate<_CharT, _Traits>::__exec(__state& __s) const | 
 | { | 
 |     if (__s.__current_ != __s.__last_ && | 
 |         __traits_.translate(*__s.__current_) == __c_) | 
 |     { | 
 |         __s.__do_ = __state::__accept_and_consume; | 
 |         ++__s.__current_; | 
 |         __s.__node_ = this->first(); | 
 |     } | 
 |     else | 
 |     { | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | // __bracket_expression | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | class __bracket_expression | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |     typedef typename _Traits::string_type string_type; | 
 |  | 
 |     _Traits __traits_; | 
 |     vector<_CharT> __chars_; | 
 |     vector<_CharT> __neg_chars_; | 
 |     vector<pair<string_type, string_type> > __ranges_; | 
 |     vector<pair<_CharT, _CharT> > __digraphs_; | 
 |     vector<string_type> __equivalences_; | 
 |     ctype_base::mask __mask_; | 
 |     ctype_base::mask __neg_mask_; | 
 |     bool __negate_; | 
 |     bool __icase_; | 
 |     bool __collate_; | 
 |     bool __might_have_digraph_; | 
 |  | 
 |     __bracket_expression(const __bracket_expression&); | 
 |     __bracket_expression& operator=(const __bracket_expression&); | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __bracket_expression(const _Traits& __traits, __node<_CharT>* __s, | 
 |                                  bool __negate, bool __icase, bool __collate) | 
 |         : base(__s), __traits_(__traits), __mask_(), __neg_mask_(), | 
 |           __negate_(__negate), __icase_(__icase), __collate_(__collate), | 
 |           __might_have_digraph_(__traits_.getloc().name() != "C") {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     bool __negated() const {return __negate_;} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __add_char(_CharT __c) | 
 |         { | 
 |             if (__icase_) | 
 |                 __chars_.push_back(__traits_.translate_nocase(__c)); | 
 |             else if (__collate_) | 
 |                 __chars_.push_back(__traits_.translate(__c)); | 
 |             else | 
 |                 __chars_.push_back(__c); | 
 |         } | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __add_neg_char(_CharT __c) | 
 |         { | 
 |             if (__icase_) | 
 |                 __neg_chars_.push_back(__traits_.translate_nocase(__c)); | 
 |             else if (__collate_) | 
 |                 __neg_chars_.push_back(__traits_.translate(__c)); | 
 |             else | 
 |                 __neg_chars_.push_back(__c); | 
 |         } | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __add_range(string_type __b, string_type __e) | 
 |         { | 
 |             if (__collate_) | 
 |             { | 
 |                 if (__icase_) | 
 |                 { | 
 |                     for (size_t __i = 0; __i < __b.size(); ++__i) | 
 |                         __b[__i] = __traits_.translate_nocase(__b[__i]); | 
 |                     for (size_t __i = 0; __i < __e.size(); ++__i) | 
 |                         __e[__i] = __traits_.translate_nocase(__e[__i]); | 
 |                 } | 
 |                 else | 
 |                 { | 
 |                     for (size_t __i = 0; __i < __b.size(); ++__i) | 
 |                         __b[__i] = __traits_.translate(__b[__i]); | 
 |                     for (size_t __i = 0; __i < __e.size(); ++__i) | 
 |                         __e[__i] = __traits_.translate(__e[__i]); | 
 |                 } | 
 |                 __ranges_.push_back(make_pair( | 
 |                                   __traits_.transform(__b.begin(), __b.end()), | 
 |                                   __traits_.transform(__e.begin(), __e.end()))); | 
 |             } | 
 |             else | 
 |             { | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                 if (__b.size() != 1 || __e.size() != 1) | 
 |                     throw regex_error(regex_constants::error_collate); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                 if (__icase_) | 
 |                 { | 
 |                     __b[0] = __traits_.translate_nocase(__b[0]); | 
 |                     __e[0] = __traits_.translate_nocase(__e[0]); | 
 |                 } | 
 |                 __ranges_.push_back(make_pair(_STD::move(__b), _STD::move(__e))); | 
 |             } | 
 |         } | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __add_digraph(_CharT __c1, _CharT __c2) | 
 |         { | 
 |             if (__icase_) | 
 |                 __digraphs_.push_back(make_pair(__traits_.translate_nocase(__c1), | 
 |                                                 __traits_.translate_nocase(__c2))); | 
 |             else if (__collate_) | 
 |                 __digraphs_.push_back(make_pair(__traits_.translate(__c1), | 
 |                                                 __traits_.translate(__c2))); | 
 |             else | 
 |                 __digraphs_.push_back(make_pair(__c1, __c2)); | 
 |         } | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __add_equivalence(const string_type& __s) | 
 |         {__equivalences_.push_back(__s);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __add_class(ctype_base::mask __mask) | 
 |         {__mask_ |= __mask;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __add_neg_class(ctype_base::mask __mask) | 
 |         {__neg_mask_ |= __mask;} | 
 | }; | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | __bracket_expression<_CharT, _Traits>::__exec(__state& __s) const | 
 | { | 
 |     bool __found = false; | 
 |     unsigned __consumed = 0; | 
 |     if (__s.__current_ != __s.__last_) | 
 |     { | 
 |         ++__consumed; | 
 |         if (__might_have_digraph_) | 
 |         { | 
 |             const _CharT* __next = next(__s.__current_); | 
 |             if (__next != __s.__last_) | 
 |             { | 
 |                 pair<_CharT, _CharT> __ch2(*__s.__current_, *__next); | 
 |                 if (__icase_) | 
 |                 { | 
 |                     __ch2.first = __traits_.translate_nocase(__ch2.first); | 
 |                     __ch2.second = __traits_.translate_nocase(__ch2.second); | 
 |                 } | 
 |                 else if (__collate_) | 
 |                 { | 
 |                     __ch2.first = __traits_.translate(__ch2.first); | 
 |                     __ch2.second = __traits_.translate(__ch2.second); | 
 |                 } | 
 |                 if (!__traits_.lookup_collatename(&__ch2.first, &__ch2.first+2).empty()) | 
 |                 { | 
 |                     // __ch2 is a digraph in this locale | 
 |                     ++__consumed; | 
 |                     for (size_t __i = 0; __i < __digraphs_.size(); ++__i) | 
 |                     { | 
 |                         if (__ch2 == __digraphs_[__i]) | 
 |                         { | 
 |                             __found = true; | 
 |                             goto __exit; | 
 |                         } | 
 |                     } | 
 |                     if (__collate_ && !__ranges_.empty()) | 
 |                     { | 
 |                         string_type __s2 = __traits_.transform(&__ch2.first, | 
 |                                                                &__ch2.first + 2); | 
 |                         for (size_t __i = 0; __i < __ranges_.size(); ++__i) | 
 |                         { | 
 |                             if (__ranges_[__i].first <= __s2 && | 
 |                                 __s2 <= __ranges_[__i].second) | 
 |                             { | 
 |                                 __found = true; | 
 |                                 goto __exit; | 
 |                             } | 
 |                         } | 
 |                     } | 
 |                     if (!__equivalences_.empty()) | 
 |                     { | 
 |                         string_type __s2 = __traits_.transform_primary(&__ch2.first, | 
 |                                                                        &__ch2.first + 2); | 
 |                         for (size_t __i = 0; __i < __equivalences_.size(); ++__i) | 
 |                         { | 
 |                             if (__s2 == __equivalences_[__i]) | 
 |                             { | 
 |                                 __found = true; | 
 |                                 goto __exit; | 
 |                             } | 
 |                         } | 
 |                     } | 
 |                     if (__traits_.isctype(__ch2.first, __mask_) && | 
 |                         __traits_.isctype(__ch2.second, __mask_)) | 
 |                     { | 
 |                         __found = true; | 
 |                         goto __exit; | 
 |                     } | 
 |                     if (!__traits_.isctype(__ch2.first, __neg_mask_) && | 
 |                         !__traits_.isctype(__ch2.second, __neg_mask_)) | 
 |                     { | 
 |                         __found = true; | 
 |                         goto __exit; | 
 |                     } | 
 |                     goto __exit; | 
 |                 } | 
 |             } | 
 |         } | 
 |         // test *__s.__current_ as not a digraph | 
 |         _CharT __ch = *__s.__current_; | 
 |         if (__icase_) | 
 |             __ch = __traits_.translate_nocase(__ch); | 
 |         else if (__collate_) | 
 |             __ch = __traits_.translate(__ch); | 
 |         for (size_t __i = 0; __i < __chars_.size(); ++__i) | 
 |         { | 
 |             if (__ch == __chars_[__i]) | 
 |             { | 
 |                 __found = true; | 
 |                 goto __exit; | 
 |             } | 
 |         } | 
 |         if (!__neg_chars_.empty()) | 
 |         { | 
 |             for (size_t __i = 0; __i < __neg_chars_.size(); ++__i) | 
 |             { | 
 |                 if (__ch == __neg_chars_[__i]) | 
 |                     goto __is_neg_char; | 
 |             } | 
 |             __found = true; | 
 |             goto __exit; | 
 |         } | 
 | __is_neg_char: | 
 |         if (!__ranges_.empty()) | 
 |         { | 
 |             string_type __s2 = __collate_ ? | 
 |                                    __traits_.transform(&__ch, &__ch + 1) : | 
 |                                    string_type(1, __ch); | 
 |             for (size_t __i = 0; __i < __ranges_.size(); ++__i) | 
 |             { | 
 |                 if (__ranges_[__i].first <= __s2 && __s2 <= __ranges_[__i].second) | 
 |                 { | 
 |                     __found = true; | 
 |                     goto __exit; | 
 |                 } | 
 |             } | 
 |         } | 
 |         if (!__equivalences_.empty()) | 
 |         { | 
 |             string_type __s2 = __traits_.transform_primary(&__ch, &__ch + 1); | 
 |             for (size_t __i = 0; __i < __equivalences_.size(); ++__i) | 
 |             { | 
 |                 if (__s2 == __equivalences_[__i]) | 
 |                 { | 
 |                     __found = true; | 
 |                     goto __exit; | 
 |                 } | 
 |             } | 
 |         } | 
 |         if (__traits_.isctype(__ch, __mask_)) | 
 |         { | 
 |             __found = true; | 
 |             goto __exit; | 
 |         } | 
 |         if (__neg_mask_ && !__traits_.isctype(__ch, __neg_mask_)) | 
 |         { | 
 |             __found = true; | 
 |             goto __exit; | 
 |         } | 
 |     } | 
 |     else | 
 |         __found = __negate_;  // force reject | 
 | __exit: | 
 |     if (__found != __negate_) | 
 |     { | 
 |         __s.__do_ = __state::__accept_and_consume; | 
 |         __s.__current_ += __consumed; | 
 |         __s.__node_ = this->first(); | 
 |     } | 
 |     else | 
 |     { | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | template <class, class> class __lookahead; | 
 |  | 
 | template <class _CharT, class _Traits = regex_traits<_CharT> > | 
 | class _LIBCPP_VISIBLE basic_regex | 
 | { | 
 | public: | 
 |     // types: | 
 |     typedef _CharT                              value_type; | 
 |     typedef regex_constants::syntax_option_type flag_type; | 
 |     typedef typename _Traits::locale_type       locale_type; | 
 |  | 
 | private: | 
 |     _Traits   __traits_; | 
 |     flag_type __flags_; | 
 |     unsigned __marked_count_; | 
 |     unsigned __loop_count_; | 
 |     int __open_count_; | 
 |     shared_ptr<__empty_state<_CharT> > __start_; | 
 |     __owns_one_state<_CharT>* __end_; | 
 |     bool __left_anchor_; | 
 |  | 
 |     typedef _STD::__state<_CharT> __state; | 
 |     typedef _STD::__node<_CharT> __node; | 
 |  | 
 | public: | 
 |     // constants: | 
 |     static const/*expr*/ regex_constants::syntax_option_type icase = regex_constants::icase; | 
 |     static const/*expr*/ regex_constants::syntax_option_type nosubs = regex_constants::nosubs; | 
 |     static const/*expr*/ regex_constants::syntax_option_type optimize = regex_constants::optimize; | 
 |     static const/*expr*/ regex_constants::syntax_option_type collate = regex_constants::collate; | 
 |     static const/*expr*/ regex_constants::syntax_option_type ECMAScript = regex_constants::ECMAScript; | 
 |     static const/*expr*/ regex_constants::syntax_option_type basic = regex_constants::basic; | 
 |     static const/*expr*/ regex_constants::syntax_option_type extended = regex_constants::extended; | 
 |     static const/*expr*/ regex_constants::syntax_option_type awk = regex_constants::awk; | 
 |     static const/*expr*/ regex_constants::syntax_option_type grep = regex_constants::grep; | 
 |     static const/*expr*/ regex_constants::syntax_option_type egrep = regex_constants::egrep; | 
 |  | 
 |     // construct/copy/destroy: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     basic_regex() | 
 |         : __flags_(), __marked_count_(0), __loop_count_(0), __open_count_(0), | 
 |           __end_(0), __left_anchor_(false) | 
 |         {} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     explicit basic_regex(const value_type* __p, flag_type __f = regex_constants::ECMAScript) | 
 |         : __flags_(__f), __marked_count_(0), __loop_count_(0), __open_count_(0), | 
 |           __end_(0), __left_anchor_(false) | 
 |         {__parse(__p, __p + __traits_.length(__p));} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     basic_regex(const value_type* __p, size_t __len, flag_type __f) | 
 |         : __flags_(__f), __marked_count_(0), __loop_count_(0), __open_count_(0), | 
 |           __end_(0), __left_anchor_(false) | 
 |         {__parse(__p, __p + __len);} | 
 | //     basic_regex(const basic_regex&) = default; | 
 | //     basic_regex(basic_regex&&) = default; | 
 |     template <class _ST, class _SA> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         explicit basic_regex(const basic_string<value_type, _ST, _SA>& __p, | 
 |                              flag_type __f = regex_constants::ECMAScript) | 
 |         : __flags_(__f), __marked_count_(0), __loop_count_(0), __open_count_(0), | 
 |           __end_(0), __left_anchor_(false) | 
 |         {__parse(__p.begin(), __p.end());} | 
 |     template <class _ForwardIterator> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         basic_regex(_ForwardIterator __first, _ForwardIterator __last, | 
 |                     flag_type __f = regex_constants::ECMAScript) | 
 |         : __flags_(__f), __marked_count_(0), __loop_count_(0), __open_count_(0), | 
 |           __end_(0), __left_anchor_(false) | 
 |         {__parse(__first, __last);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     basic_regex(initializer_list<value_type> __il, | 
 |                 flag_type __f = regex_constants::ECMAScript) | 
 |         : __flags_(__f), __marked_count_(0), __loop_count_(0), __open_count_(0), | 
 |           __end_(0), __left_anchor_(false) | 
 |         {__parse(__il.begin(), __il.end());} | 
 |  | 
 | //    ~basic_regex() = default; | 
 |  | 
 | //     basic_regex& operator=(const basic_regex&) = default; | 
 | //     basic_regex& operator=(basic_regex&&) = default; | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     basic_regex& operator=(const value_type* __p) | 
 |         {return assign(__p);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     basic_regex& operator=(initializer_list<value_type> __il) | 
 |         {return assign(__il);} | 
 |     template <class _ST, class _SA> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         basic_regex& operator=(const basic_string<value_type, _ST, _SA>& __p) | 
 |         {return assign(__p);} | 
 |  | 
 |     // assign: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     basic_regex& assign(const basic_regex& __that) | 
 |         {return *this = __that;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     basic_regex& assign(const value_type* __p, flag_type __f = regex_constants::ECMAScript) | 
 |         {return assign(__p, __p + __traits_.length(__p), __f);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     basic_regex& assign(const value_type* __p, size_t __len, flag_type __f) | 
 |         {return assign(__p, __p + __len, __f);} | 
 |     template <class _ST, class _SA> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         basic_regex& assign(const basic_string<value_type, _ST, _SA>& __s, | 
 |                             flag_type __f = regex_constants::ECMAScript) | 
 |             {return assign(__s.begin(), __s.end(), __f);} | 
 |  | 
 |     template <class _InputIterator> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         typename enable_if | 
 |         < | 
 |              __is_input_iterator  <_InputIterator>::value && | 
 |             !__is_forward_iterator<_InputIterator>::value, | 
 |             basic_regex& | 
 |         >::type | 
 |         assign(_InputIterator __first, _InputIterator __last, | 
 |                             flag_type __f = regex_constants::ECMAScript) | 
 |         { | 
 |             basic_string<_CharT> __t(__first, __last); | 
 |             return assign(__t.begin(), __t.end(), __f); | 
 |         } | 
 |  | 
 | private: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __member_init(flag_type __f) | 
 |     { | 
 |         __flags_ = __f; | 
 |         __marked_count_ = 0; | 
 |         __loop_count_ = 0; | 
 |         __open_count_ = 0; | 
 |         __end_ = nullptr; | 
 |         __left_anchor_ = false; | 
 |     } | 
 | public: | 
 |  | 
 |     template <class _ForwardIterator> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         typename enable_if | 
 |         < | 
 |             __is_forward_iterator<_ForwardIterator>::value, | 
 |             basic_regex& | 
 |         >::type | 
 |         assign(_ForwardIterator __first, _ForwardIterator __last, | 
 |                             flag_type __f = regex_constants::ECMAScript) | 
 |         { | 
 |             __member_init(__f); | 
 |             __parse(__first, __last); | 
 |         } | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     basic_regex& assign(initializer_list<value_type> __il, | 
 |                         flag_type __f = regex_constants::ECMAScript) | 
 |         {return assign(__il.begin(), __il.end(), __f);} | 
 |  | 
 |     // const operations: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     unsigned mark_count() const {return __marked_count_;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     flag_type flags() const {return __flags_;} | 
 |  | 
 |     // locale: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     locale_type imbue(locale_type __loc) | 
 |     { | 
 |         __member_init(ECMAScript); | 
 |         __start_.reset(); | 
 |         return __traits_.imbue(__loc); | 
 |     } | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     locale_type getloc() const {return __traits_.getloc();} | 
 |  | 
 |     // swap: | 
 |     void swap(basic_regex& __r); | 
 |  | 
 | private: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     unsigned __loop_count() const {return __loop_count_;} | 
 |  | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_basic_reg_exp(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_RE_expression(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_simple_RE(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_nondupl_RE(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_one_char_or_coll_elem_RE(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_Back_open_paren(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_Back_close_paren(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_Back_open_brace(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_Back_close_brace(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_BACKREF(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_ORD_CHAR(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_QUOTED_CHAR(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_RE_dupl_symbol(_ForwardIterator __first, _ForwardIterator __last, | 
 |                                __owns_one_state<_CharT>* __s, | 
 |                                unsigned __mexp_begin, unsigned __mexp_end); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_ERE_dupl_symbol(_ForwardIterator __first, _ForwardIterator __last, | 
 |                                 __owns_one_state<_CharT>* __s, | 
 |                                 unsigned __mexp_begin, unsigned __mexp_end); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_bracket_expression(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_follow_list(_ForwardIterator __first, _ForwardIterator __last, | 
 |                             __bracket_expression<_CharT, _Traits>* __ml); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_expression_term(_ForwardIterator __first, _ForwardIterator __last, | 
 |                                 __bracket_expression<_CharT, _Traits>* __ml); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_equivalence_class(_ForwardIterator __first, _ForwardIterator __last, | 
 |                                   __bracket_expression<_CharT, _Traits>* __ml); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_character_class(_ForwardIterator __first, _ForwardIterator __last, | 
 |                                 __bracket_expression<_CharT, _Traits>* __ml); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_collating_symbol(_ForwardIterator __first, _ForwardIterator __last, | 
 |                                  basic_string<_CharT>& __col_sym); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_DUP_COUNT(_ForwardIterator __first, _ForwardIterator __last, int& __c); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_extended_reg_exp(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_ERE_branch(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_ERE_expression(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_one_char_or_coll_elem_ERE(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_ORD_CHAR_ERE(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_QUOTED_CHAR_ERE(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_ecma_exp(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_alternative(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_term(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_assertion(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_atom(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_atom_escape(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_decimal_escape(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_character_class_escape(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_character_escape(_ForwardIterator __first, _ForwardIterator __last, | 
 |                                  basic_string<_CharT>* __str = nullptr); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_pattern_character(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_grep(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_egrep(_ForwardIterator __first, _ForwardIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_class_escape(_ForwardIterator __first, _ForwardIterator __last, | 
 |                           basic_string<_CharT>& __str, | 
 |                           __bracket_expression<_CharT, _Traits>* __ml); | 
 |     template <class _ForwardIterator> | 
 |         _ForwardIterator | 
 |         __parse_awk_escape(_ForwardIterator __first, _ForwardIterator __last, | 
 |                           basic_string<_CharT>* __str = nullptr); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __push_l_anchor() {__left_anchor_ = true;} | 
 |     void __push_r_anchor(); | 
 |     void __push_match_any(); | 
 |     void __push_match_any_but_newline(); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __push_greedy_inf_repeat(size_t __min, __owns_one_state<_CharT>* __s, | 
 |                                   unsigned __mexp_begin = 0, unsigned __mexp_end = 0) | 
 |         {__push_loop(__min, numeric_limits<size_t>::max(), __s, | 
 |                      __mexp_begin, __mexp_end);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __push_nongreedy_inf_repeat(size_t __min, __owns_one_state<_CharT>* __s, | 
 |                                   unsigned __mexp_begin = 0, unsigned __mexp_end = 0) | 
 |         {__push_loop(__min, numeric_limits<size_t>::max(), __s, | 
 |                      __mexp_begin, __mexp_end, false);} | 
 |     void __push_loop(size_t __min, size_t __max, __owns_one_state<_CharT>* __s, | 
 |                      size_t __mexp_begin = 0, size_t __mexp_end = 0, | 
 |                      bool __greedy = true); | 
 |     __bracket_expression<_CharT, _Traits>* __start_matching_list(bool __negate); | 
 |     void __push_char(value_type __c); | 
 |     void __push_back_ref(int __i); | 
 |     void __push_alternation(__owns_one_state<_CharT>* __sa, | 
 |                             __owns_one_state<_CharT>* __sb); | 
 |     void __push_begin_marked_subexpression(); | 
 |     void __push_end_marked_subexpression(unsigned); | 
 |     void __push_empty(); | 
 |     void __push_word_boundary(bool); | 
 |     void __push_lookahead(const basic_regex&, bool); | 
 |  | 
 |     template <class _Allocator> | 
 |         bool | 
 |         __search(const _CharT* __first, const _CharT* __last, | 
 |                  match_results<const _CharT*, _Allocator>& __m, | 
 |                  regex_constants::match_flag_type __flags) const; | 
 |  | 
 |     template <class _Allocator> | 
 |         bool | 
 |         __match_at_start(const _CharT* __first, const _CharT* __last, | 
 |                  match_results<const _CharT*, _Allocator>& __m, | 
 |                  regex_constants::match_flag_type __flags) const; | 
 |     template <class _Allocator> | 
 |         bool | 
 |         __match_at_start_ecma(const _CharT* __first, const _CharT* __last, | 
 |                  match_results<const _CharT*, _Allocator>& __m, | 
 |                  regex_constants::match_flag_type __flags) const; | 
 |     template <class _Allocator> | 
 |         bool | 
 |         __match_at_start_posix_nosubs(const _CharT* __first, const _CharT* __last, | 
 |                  match_results<const _CharT*, _Allocator>& __m, | 
 |                  regex_constants::match_flag_type __flags) const; | 
 |     template <class _Allocator> | 
 |         bool | 
 |         __match_at_start_posix_subs(const _CharT* __first, const _CharT* __last, | 
 |                  match_results<const _CharT*, _Allocator>& __m, | 
 |                  regex_constants::match_flag_type __flags) const; | 
 |  | 
 |     template <class _B, class _A, class _C, class _T> | 
 |     friend | 
 |     bool | 
 |     regex_search(_B, _B, match_results<_B, _A>&, const basic_regex<_C, _T>&, | 
 |                  regex_constants::match_flag_type); | 
 |  | 
 |     template <class _A, class _C, class _T> | 
 |     friend | 
 |     bool | 
 |     regex_search(const _C*, const _C*, match_results<const _C*, _A>&, | 
 |                  const basic_regex<_C, _T>&, regex_constants::match_flag_type); | 
 |  | 
 |     template <class _B, class _C, class _T> | 
 |     friend | 
 |     bool | 
 |     regex_search(_B, _B, const basic_regex<_C, _T>&, | 
 |                  regex_constants::match_flag_type); | 
 |  | 
 |     template <class _C, class _T> | 
 |     friend | 
 |     bool | 
 |     regex_search(const _C*, const _C*, | 
 |                  const basic_regex<_C, _T>&, regex_constants::match_flag_type); | 
 |  | 
 |     template <class _C, class _A, class _T> | 
 |     friend | 
 |     bool | 
 |     regex_search(const _C*, match_results<const _C*, _A>&, const basic_regex<_C, _T>&, | 
 |                  regex_constants::match_flag_type); | 
 |  | 
 |     template <class _ST, class _SA, class _C, class _T> | 
 |     friend | 
 |     bool | 
 |     regex_search(const basic_string<_C, _ST, _SA>& __s, | 
 |                  const basic_regex<_C, _T>& __e, | 
 |                  regex_constants::match_flag_type __flags); | 
 |  | 
 |     template <class _ST, class _SA, class _A, class _C, class _T> | 
 |     friend | 
 |     bool | 
 |     regex_search(const basic_string<_C, _ST, _SA>& __s, | 
 |                  match_results<typename basic_string<_C, _ST, _SA>::const_iterator, _A>&, | 
 |                  const basic_regex<_C, _T>& __e, | 
 |                  regex_constants::match_flag_type __flags); | 
 |  | 
 |     template <class, class> friend class __lookahead; | 
 | }; | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::swap(basic_regex& __r) | 
 | { | 
 |     using _STD::swap; | 
 |     swap(__traits_, __r.__traits_); | 
 |     swap(__flags_, __r.__flags_); | 
 |     swap(__marked_count_, __r.__marked_count_); | 
 |     swap(__loop_count_, __r.__loop_count_); | 
 |     swap(__open_count_, __r.__open_count_); | 
 |     swap(__start_, __r.__start_); | 
 |     swap(__end_, __r.__end_); | 
 |     swap(__left_anchor_, __r.__left_anchor_); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | void | 
 | swap(basic_regex<_CharT, _Traits>& __x, basic_regex<_CharT, _Traits>& __y) | 
 | { | 
 |     return __x.swap(__y); | 
 | } | 
 |  | 
 | // __lookahead | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | class __lookahead | 
 |     : public __owns_one_state<_CharT> | 
 | { | 
 |     typedef __owns_one_state<_CharT> base; | 
 |  | 
 |     basic_regex<_CharT, _Traits> __exp_; | 
 |     bool __invert_; | 
 |  | 
 |     __lookahead(const __lookahead&); | 
 |     __lookahead& operator=(const __lookahead&); | 
 | public: | 
 |     typedef _STD::__state<_CharT> __state; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __lookahead(const basic_regex<_CharT, _Traits>& __exp, bool __invert, __node<_CharT>* __s) | 
 |         : base(__s), __exp_(__exp), __invert_(__invert) {} | 
 |  | 
 |     virtual void __exec(__state&) const; | 
 | }; | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | __lookahead<_CharT, _Traits>::__exec(__state& __s) const | 
 | { | 
 |     match_results<const _CharT*> __m; | 
 |     __m.__init(1 + __exp_.mark_count(), __s.__current_, __s.__last_); | 
 |     bool __matched = __exp_.__match_at_start_ecma(__s.__current_, __s.__last_, | 
 |                                                   __m, __s.__flags_); | 
 |     if (__matched != __invert_) | 
 |     { | 
 |         __s.__do_ = __state::__accept_but_not_consume; | 
 |         __s.__node_ = this->first(); | 
 |     } | 
 |     else | 
 |     { | 
 |         __s.__do_ = __state::__reject; | 
 |         __s.__node_ = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse(_ForwardIterator __first, | 
 |                                       _ForwardIterator __last) | 
 | { | 
 |     { | 
 |         unique_ptr<__node> __h(new __end_state<_CharT>); | 
 |         __start_.reset(new __empty_state<_CharT>(__h.get())); | 
 |         __h.release(); | 
 |         __end_ = __start_.get(); | 
 |     } | 
 |     switch (__flags_ & 0x1F0) | 
 |     { | 
 |     case ECMAScript: | 
 |         __first = __parse_ecma_exp(__first, __last); | 
 |         break; | 
 |     case basic: | 
 |         __first = __parse_basic_reg_exp(__first, __last); | 
 |         break; | 
 |     case extended: | 
 |     case awk: | 
 |         __first = __parse_extended_reg_exp(__first, __last); | 
 |         break; | 
 |     case grep: | 
 |         __first = __parse_grep(__first, __last); | 
 |         break; | 
 |     case egrep: | 
 |         __first = __parse_egrep(__first, __last); | 
 |         break; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     default: | 
 |         throw regex_error(regex_constants::__re_err_grammar); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_basic_reg_exp(_ForwardIterator __first, | 
 |                                                     _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         if (*__first == '^') | 
 |         { | 
 |             __push_l_anchor(); | 
 |             ++__first; | 
 |         } | 
 |         if (__first != __last) | 
 |         { | 
 |             __first = __parse_RE_expression(__first, __last); | 
 |             if (__first != __last) | 
 |             { | 
 |                 _ForwardIterator __temp = next(__first); | 
 |                 if (__temp == __last && *__first == '$') | 
 |                 { | 
 |                     __push_r_anchor(); | 
 |                     ++__first; | 
 |                 } | 
 |             } | 
 |         } | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         if (__first != __last) | 
 |             throw regex_error(regex_constants::__re_err_empty); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_extended_reg_exp(_ForwardIterator __first, | 
 |                                                        _ForwardIterator __last) | 
 | { | 
 |     __owns_one_state<_CharT>* __sa = __end_; | 
 |     _ForwardIterator __temp = __parse_ERE_branch(__first, __last); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     if (__temp == __first) | 
 |         throw regex_error(regex_constants::__re_err_empty); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     __first = __temp; | 
 |     while (__first != __last && *__first == '|') | 
 |     { | 
 |         __owns_one_state<_CharT>* __sb = __end_; | 
 |         __temp = __parse_ERE_branch(++__first, __last); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         if (__temp == __first) | 
 |             throw regex_error(regex_constants::__re_err_empty); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |         __push_alternation(__sa, __sb); | 
 |         __first = __temp; | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_ERE_branch(_ForwardIterator __first, | 
 |                                                  _ForwardIterator __last) | 
 | { | 
 |     _ForwardIterator __temp = __parse_ERE_expression(__first, __last); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     if (__temp == __first) | 
 |         throw regex_error(regex_constants::__re_err_empty); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     do | 
 |     { | 
 |         __first = __temp; | 
 |         __temp = __parse_ERE_expression(__first, __last); | 
 |     } while (__temp != __first); | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_ERE_expression(_ForwardIterator __first, | 
 |                                                      _ForwardIterator __last) | 
 | { | 
 |     __owns_one_state<_CharT>* __e = __end_; | 
 |     unsigned __mexp_begin = __marked_count_; | 
 |     _ForwardIterator __temp = __parse_one_char_or_coll_elem_ERE(__first, __last); | 
 |     if (__temp == __first && __temp != __last) | 
 |     { | 
 |         switch (*__temp) | 
 |         { | 
 |         case '^': | 
 |             __push_l_anchor(); | 
 |             ++__temp; | 
 |             break; | 
 |         case '$': | 
 |             __push_r_anchor(); | 
 |             ++__temp; | 
 |             break; | 
 |         case '(': | 
 |             __push_begin_marked_subexpression(); | 
 |             unsigned __temp_count = __marked_count_; | 
 |             ++__open_count_; | 
 |             __temp = __parse_extended_reg_exp(++__temp, __last); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__temp == __last || *__temp != ')') | 
 |                 throw regex_error(regex_constants::error_paren); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __push_end_marked_subexpression(__temp_count); | 
 |             --__open_count_; | 
 |             ++__temp; | 
 |             break; | 
 |         } | 
 |     } | 
 |     if (__temp != __first) | 
 |         __temp = __parse_ERE_dupl_symbol(__temp, __last, __e, __mexp_begin+1, | 
 |                                          __marked_count_+1); | 
 |     __first = __temp; | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_RE_expression(_ForwardIterator __first, | 
 |                                                     _ForwardIterator __last) | 
 | { | 
 |     while (true) | 
 |     { | 
 |         _ForwardIterator __temp = __parse_simple_RE(__first, __last); | 
 |         if (__temp == __first) | 
 |             break; | 
 |         __first = __temp; | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_simple_RE(_ForwardIterator __first, | 
 |                                                 _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         __owns_one_state<_CharT>* __e = __end_; | 
 |         unsigned __mexp_begin = __marked_count_; | 
 |         _ForwardIterator __temp = __parse_nondupl_RE(__first, __last); | 
 |         if (__temp != __first) | 
 |             __first = __parse_RE_dupl_symbol(__temp, __last, __e, | 
 |                                              __mexp_begin+1, __marked_count_+1); | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_nondupl_RE(_ForwardIterator __first, | 
 |                                                  _ForwardIterator __last) | 
 | { | 
 |     _ForwardIterator __temp = __first; | 
 |     __first = __parse_one_char_or_coll_elem_RE(__first, __last); | 
 |     if (__temp == __first) | 
 |     { | 
 |         __temp = __parse_Back_open_paren(__first, __last); | 
 |         if (__temp != __first) | 
 |         { | 
 |             __push_begin_marked_subexpression(); | 
 |             unsigned __temp_count = __marked_count_; | 
 |             __first = __parse_RE_expression(__temp, __last); | 
 |             __temp = __parse_Back_close_paren(__first, __last); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__temp == __first) | 
 |                 throw regex_error(regex_constants::error_paren); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __push_end_marked_subexpression(__temp_count); | 
 |             __first = __temp; | 
 |         } | 
 |         else | 
 |             __first = __parse_BACKREF(__first, __last); | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_one_char_or_coll_elem_RE( | 
 |                                                        _ForwardIterator __first, | 
 |                                                        _ForwardIterator __last) | 
 | { | 
 |     _ForwardIterator __temp = __parse_ORD_CHAR(__first, __last); | 
 |     if (__temp == __first) | 
 |     { | 
 |         __temp = __parse_QUOTED_CHAR(__first, __last); | 
 |         if (__temp == __first) | 
 |         { | 
 |             if (__temp != __last && *__temp == '.') | 
 |             { | 
 |                 __push_match_any(); | 
 |                 ++__temp; | 
 |             } | 
 |             else | 
 |                 __temp = __parse_bracket_expression(__first, __last); | 
 |         } | 
 |     } | 
 |     __first = __temp; | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_one_char_or_coll_elem_ERE( | 
 |                                                        _ForwardIterator __first, | 
 |                                                        _ForwardIterator __last) | 
 | { | 
 |     _ForwardIterator __temp = __parse_ORD_CHAR_ERE(__first, __last); | 
 |     if (__temp == __first) | 
 |     { | 
 |         __temp = __parse_QUOTED_CHAR_ERE(__first, __last); | 
 |         if (__temp == __first) | 
 |         { | 
 |             if (__temp != __last && *__temp == '.') | 
 |             { | 
 |                 __push_match_any(); | 
 |                 ++__temp; | 
 |             } | 
 |             else | 
 |                 __temp = __parse_bracket_expression(__first, __last); | 
 |         } | 
 |     } | 
 |     __first = __temp; | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_Back_open_paren(_ForwardIterator __first, | 
 |                                                       _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         _ForwardIterator __temp = next(__first); | 
 |         if (__temp != __last) | 
 |         { | 
 |             if (*__first == '\\' && *__temp == '(') | 
 |                 __first = ++__temp; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_Back_close_paren(_ForwardIterator __first, | 
 |                                                        _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         _ForwardIterator __temp = next(__first); | 
 |         if (__temp != __last) | 
 |         { | 
 |             if (*__first == '\\' && *__temp == ')') | 
 |                 __first = ++__temp; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_Back_open_brace(_ForwardIterator __first, | 
 |                                                       _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         _ForwardIterator __temp = next(__first); | 
 |         if (__temp != __last) | 
 |         { | 
 |             if (*__first == '\\' && *__temp == '{') | 
 |                 __first = ++__temp; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_Back_close_brace(_ForwardIterator __first, | 
 |                                                        _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         _ForwardIterator __temp = next(__first); | 
 |         if (__temp != __last) | 
 |         { | 
 |             if (*__first == '\\' && *__temp == '}') | 
 |                 __first = ++__temp; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_BACKREF(_ForwardIterator __first, | 
 |                                               _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         _ForwardIterator __temp = next(__first); | 
 |         if (__temp != __last) | 
 |         { | 
 |             if (*__first == '\\' && '1' <= *__temp && *__temp <= '9') | 
 |             { | 
 |                 __push_back_ref(*__temp - '0'); | 
 |                 __first = ++__temp; | 
 |             } | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_ORD_CHAR(_ForwardIterator __first, | 
 |                                                _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         _ForwardIterator __temp = next(__first); | 
 |         if (__temp == __last && *__first == '$') | 
 |             return __first; | 
 |         // Not called inside a bracket | 
 |         if (*__first == '.' || *__first == '\\' || *__first == '[') | 
 |             return __first; | 
 |         __push_char(*__first); | 
 |         ++__first; | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_ORD_CHAR_ERE(_ForwardIterator __first, | 
 |                                                    _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         switch (*__first) | 
 |         { | 
 |         case '^': | 
 |         case '.': | 
 |         case '[': | 
 |         case '$': | 
 |         case '(': | 
 |         case '|': | 
 |         case '*': | 
 |         case '+': | 
 |         case '?': | 
 |         case '{': | 
 |         case '\\': | 
 |             break; | 
 |         case ')': | 
 |             if (__open_count_ == 0) | 
 |             { | 
 |                 __push_char(*__first); | 
 |                 ++__first; | 
 |             } | 
 |             break; | 
 |         default: | 
 |             __push_char(*__first); | 
 |             ++__first; | 
 |             break; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_QUOTED_CHAR(_ForwardIterator __first, | 
 |                                                   _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         _ForwardIterator __temp = next(__first); | 
 |         if (__temp != __last) | 
 |         { | 
 |             if (*__first == '\\') | 
 |             { | 
 |                 switch (*__temp) | 
 |                 { | 
 |                 case '^': | 
 |                 case '.': | 
 |                 case '*': | 
 |                 case '[': | 
 |                 case '$': | 
 |                 case '\\': | 
 |                     __push_char(*__temp); | 
 |                     __first = ++__temp; | 
 |                     break; | 
 |                 } | 
 |             } | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_QUOTED_CHAR_ERE(_ForwardIterator __first, | 
 |                                                       _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         _ForwardIterator __temp = next(__first); | 
 |         if (__temp != __last) | 
 |         { | 
 |             if (*__first == '\\') | 
 |             { | 
 |                 switch (*__temp) | 
 |                 { | 
 |                 case '^': | 
 |                 case '.': | 
 |                 case '*': | 
 |                 case '[': | 
 |                 case '$': | 
 |                 case '\\': | 
 |                 case '(': | 
 |                 case ')': | 
 |                 case '|': | 
 |                 case '+': | 
 |                 case '?': | 
 |                 case '{': | 
 |                     __push_char(*__temp); | 
 |                     __first = ++__temp; | 
 |                     break; | 
 |                 default: | 
 |                     if ((__flags_ & 0x1F0) == awk) | 
 |                         __first = __parse_awk_escape(++__first, __last); | 
 |                     break; | 
 |                 } | 
 |             } | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_RE_dupl_symbol(_ForwardIterator __first, | 
 |                                                      _ForwardIterator __last, | 
 |                                                      __owns_one_state<_CharT>* __s, | 
 |                                                      unsigned __mexp_begin, | 
 |                                                      unsigned __mexp_end) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         if (*__first == '*') | 
 |         { | 
 |             __push_greedy_inf_repeat(0, __s, __mexp_begin, __mexp_end); | 
 |             ++__first; | 
 |         } | 
 |         else | 
 |         { | 
 |             _ForwardIterator __temp = __parse_Back_open_brace(__first, __last); | 
 |             if (__temp != __first) | 
 |             { | 
 |                 int __min = 0; | 
 |                 __first = __temp; | 
 |                 __temp = __parse_DUP_COUNT(__first, __last, __min); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                 if (__temp == __first) | 
 |                     throw regex_error(regex_constants::error_badbrace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                 __first = __temp; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                 if (__first == __last) | 
 |                     throw regex_error(regex_constants::error_brace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                 if (*__first != ',') | 
 |                 { | 
 |                     __temp = __parse_Back_close_brace(__first, __last); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                     if (__temp == __first) | 
 |                         throw regex_error(regex_constants::error_brace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                     __push_loop(__min, __min, __s, __mexp_begin, __mexp_end, | 
 |                                     true); | 
 |                     __first = __temp; | 
 |                 } | 
 |                 else | 
 |                 { | 
 |                     ++__first;  // consume ',' | 
 |                     int __max = -1; | 
 |                     __first = __parse_DUP_COUNT(__first, __last, __max); | 
 |                     __temp = __parse_Back_close_brace(__first, __last); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                     if (__temp == __first) | 
 |                         throw regex_error(regex_constants::error_brace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                     if (__max == -1) | 
 |                         __push_greedy_inf_repeat(__min, __s, __mexp_begin, __mexp_end); | 
 |                     else | 
 |                     { | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                         if (__max < __min) | 
 |                             throw regex_error(regex_constants::error_badbrace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                         __push_loop(__min, __max, __s, __mexp_begin, __mexp_end, | 
 |                                     true); | 
 |                     } | 
 |                     __first = __temp; | 
 |                 } | 
 |             } | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_ERE_dupl_symbol(_ForwardIterator __first, | 
 |                                                       _ForwardIterator __last, | 
 |                                                       __owns_one_state<_CharT>* __s, | 
 |                                                       unsigned __mexp_begin, | 
 |                                                       unsigned __mexp_end) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         unsigned __grammar = __flags_ & 0x1F0; | 
 |         switch (*__first) | 
 |         { | 
 |         case '*': | 
 |             ++__first; | 
 |             if (__grammar == ECMAScript && __first != __last && *__first == '?') | 
 |             { | 
 |                 ++__first; | 
 |                 __push_nongreedy_inf_repeat(0, __s, __mexp_begin, __mexp_end); | 
 |             } | 
 |             else | 
 |                 __push_greedy_inf_repeat(0, __s, __mexp_begin, __mexp_end); | 
 |             break; | 
 |         case '+': | 
 |             ++__first; | 
 |             if (__grammar == ECMAScript && __first != __last && *__first == '?') | 
 |             { | 
 |                 ++__first; | 
 |                 __push_nongreedy_inf_repeat(1, __s, __mexp_begin, __mexp_end); | 
 |             } | 
 |             else | 
 |                 __push_greedy_inf_repeat(1, __s, __mexp_begin, __mexp_end); | 
 |             break; | 
 |         case '?': | 
 |             ++__first; | 
 |             if (__grammar == ECMAScript && __first != __last && *__first == '?') | 
 |             { | 
 |                 ++__first; | 
 |                 __push_loop(0, 1, __s, __mexp_begin, __mexp_end, false); | 
 |             } | 
 |             else | 
 |                 __push_loop(0, 1, __s, __mexp_begin, __mexp_end); | 
 |             break; | 
 |         case '{': | 
 |             { | 
 |                 int __min; | 
 |                 _ForwardIterator __temp = __parse_DUP_COUNT(++__first, __last, __min); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                 if (__temp == __first) | 
 |                     throw regex_error(regex_constants::error_badbrace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                 __first = __temp; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                 if (__first == __last) | 
 |                     throw regex_error(regex_constants::error_brace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                 switch (*__first) | 
 |                 { | 
 |                 case '}': | 
 |                     ++__first; | 
 |                     if (__grammar == ECMAScript && __first != __last && *__first == '?') | 
 |                     { | 
 |                         ++__first; | 
 |                         __push_loop(__min, __min, __s, __mexp_begin, __mexp_end, false); | 
 |                     } | 
 |                     else | 
 |                         __push_loop(__min, __min, __s, __mexp_begin, __mexp_end); | 
 |                     break; | 
 |                 case ',': | 
 |                     ++__first; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                     if (__first == __last) | 
 |                         throw regex_error(regex_constants::error_badbrace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                     if (*__first == '}') | 
 |                     { | 
 |                         ++__first; | 
 |                         if (__grammar == ECMAScript && __first != __last && *__first == '?') | 
 |                         { | 
 |                             ++__first; | 
 |                             __push_nongreedy_inf_repeat(__min, __s, __mexp_begin, __mexp_end); | 
 |                         } | 
 |                         else | 
 |                             __push_greedy_inf_repeat(__min, __s, __mexp_begin, __mexp_end); | 
 |                     } | 
 |                     else | 
 |                     { | 
 |                         int __max = -1; | 
 |                         __temp = __parse_DUP_COUNT(__first, __last, __max); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                         if (__temp == __first) | 
 |                             throw regex_error(regex_constants::error_brace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                         __first = __temp; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                         if (__first == __last || *__first != '}') | 
 |                             throw regex_error(regex_constants::error_brace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                         ++__first; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                         if (__max < __min) | 
 |                             throw regex_error(regex_constants::error_badbrace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                         if (__grammar == ECMAScript && __first != __last && *__first == '?') | 
 |                         { | 
 |                             ++__first; | 
 |                             __push_loop(__min, __max, __s, __mexp_begin, __mexp_end, false); | 
 |                         } | 
 |                         else | 
 |                             __push_loop(__min, __max, __s, __mexp_begin, __mexp_end); | 
 |                     } | 
 |                     break; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                 default: | 
 |                     throw regex_error(regex_constants::error_badbrace); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                 } | 
 |             } | 
 |             break; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_bracket_expression(_ForwardIterator __first, | 
 |                                                          _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last && *__first == '[') | 
 |     { | 
 |         ++__first; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         if (__first == __last) | 
 |             throw regex_error(regex_constants::error_brack); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |         bool __negate = false; | 
 |         if (*__first == '^') | 
 |         { | 
 |             ++__first; | 
 |             __negate = true; | 
 |         } | 
 |         __bracket_expression<_CharT, _Traits>* __ml = __start_matching_list(__negate); | 
 |         // __ml owned by *this | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         if (__first == __last) | 
 |             throw regex_error(regex_constants::error_brack); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |         if ((__flags_ & 0x1F0) != ECMAScript && *__first == ']') | 
 |         { | 
 |             __ml->__add_char(']'); | 
 |             ++__first; | 
 |         } | 
 |         __first = __parse_follow_list(__first, __last, __ml); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         if (__first == __last) | 
 |             throw regex_error(regex_constants::error_brack); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |         if (*__first == '-') | 
 |         { | 
 |             __ml->__add_char('-'); | 
 |             ++__first; | 
 |         } | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         if (__first == __last || *__first != ']') | 
 |             throw regex_error(regex_constants::error_brack); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |         ++__first; | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_follow_list(_ForwardIterator __first, | 
 |                                     _ForwardIterator __last, | 
 |                                     __bracket_expression<_CharT, _Traits>* __ml) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         while (true) | 
 |         { | 
 |             _ForwardIterator __temp = __parse_expression_term(__first, __last, | 
 |                                                               __ml); | 
 |             if (__temp == __first) | 
 |                 break; | 
 |             __first = __temp; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_expression_term(_ForwardIterator __first, | 
 |                                     _ForwardIterator __last, | 
 |                                     __bracket_expression<_CharT, _Traits>* __ml) | 
 | { | 
 |     if (__first != __last && *__first != ']') | 
 |     { | 
 |         _ForwardIterator __temp = next(__first); | 
 |         basic_string<_CharT> __start_range; | 
 |         if (__temp != __last && *__first == '[') | 
 |         { | 
 |             if (*__temp == '=') | 
 |                 return __parse_equivalence_class(++__temp, __last, __ml); | 
 |             else if (*__temp == ':') | 
 |                 return __parse_character_class(++__temp, __last, __ml); | 
 |             else if (*__temp == '.') | 
 |                 __first = __parse_collating_symbol(++__temp, __last, __start_range); | 
 |         } | 
 |         unsigned __grammar = __flags_ & 0x1F0; | 
 |         if (__start_range.empty()) | 
 |         { | 
 |             if ((__grammar == ECMAScript || __grammar == awk) && *__first == '\\') | 
 |             { | 
 |                 if (__grammar == ECMAScript) | 
 |                     __first = __parse_class_escape(++__first, __last, __start_range, __ml); | 
 |                 else | 
 |                     __first = __parse_awk_escape(++__first, __last, &__start_range); | 
 |             } | 
 |             else | 
 |             { | 
 |                 __start_range = *__first; | 
 |                 ++__first; | 
 |             } | 
 |         } | 
 |         if (__first != __last && *__first != ']') | 
 |         { | 
 |             __temp = next(__first); | 
 |             if (__temp != __last && *__first == '-' && *__temp != ']') | 
 |             { | 
 |                 // parse a range | 
 |                 basic_string<_CharT> __end_range; | 
 |                 __first = __temp; | 
 |                 ++__temp; | 
 |                 if (__temp != __last && *__first == '[' && *__temp == '.') | 
 |                     __first = __parse_collating_symbol(++__temp, __last, __end_range); | 
 |                 else | 
 |                 { | 
 |                     if ((__grammar == ECMAScript || __grammar == awk) && *__first == '\\') | 
 |                     { | 
 |                         if (__grammar == ECMAScript) | 
 |                             __first = __parse_class_escape(++__first, __last, | 
 |                                                            __end_range, __ml); | 
 |                         else | 
 |                             __first = __parse_awk_escape(++__first, __last, | 
 |                                                          &__end_range); | 
 |                     } | 
 |                     else | 
 |                     { | 
 |                         __end_range = *__first; | 
 |                         ++__first; | 
 |                     } | 
 |                 } | 
 |                 __ml->__add_range(_STD::move(__start_range), _STD::move(__end_range)); | 
 |             } | 
 |             else | 
 |             { | 
 |                 if (__start_range.size() == 1) | 
 |                     __ml->__add_char(__start_range[0]); | 
 |                 else | 
 |                     __ml->__add_digraph(__start_range[0], __start_range[1]); | 
 |             } | 
 |         } | 
 |         else | 
 |         { | 
 |             if (__start_range.size() == 1) | 
 |                 __ml->__add_char(__start_range[0]); | 
 |             else | 
 |                 __ml->__add_digraph(__start_range[0], __start_range[1]); | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_class_escape(_ForwardIterator __first, | 
 |                           _ForwardIterator __last, | 
 |                           basic_string<_CharT>& __str, | 
 |                           __bracket_expression<_CharT, _Traits>* __ml) | 
 | { | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     if (__first == __last) | 
 |         throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     switch (*__first) | 
 |     { | 
 |     case 0: | 
 |         __str = *__first; | 
 |         return ++__first; | 
 |     case 'b': | 
 |         __str = _CharT(8); | 
 |         return ++__first; | 
 |     case 'd': | 
 |         __ml->__add_class(ctype_base::digit); | 
 |         return ++__first; | 
 |     case 'D': | 
 |         __ml->__add_neg_class(ctype_base::digit); | 
 |         return ++__first; | 
 |     case 's': | 
 |         __ml->__add_class(ctype_base::space); | 
 |         return ++__first; | 
 |     case 'S': | 
 |         __ml->__add_neg_class(ctype_base::space); | 
 |         return ++__first; | 
 |     case 'w': | 
 |         __ml->__add_class(ctype_base::alnum); | 
 |         __ml->__add_char('_'); | 
 |         return ++__first; | 
 |     case 'W': | 
 |         __ml->__add_neg_class(ctype_base::alnum); | 
 |         __ml->__add_neg_char('_'); | 
 |         return ++__first; | 
 |     } | 
 |     __first = __parse_character_escape(__first, __last, &__str); | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_awk_escape(_ForwardIterator __first, | 
 |                           _ForwardIterator __last, | 
 |                           basic_string<_CharT>* __str) | 
 | { | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     if (__first == __last) | 
 |         throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     switch (*__first) | 
 |     { | 
 |     case '\\': | 
 |     case '"': | 
 |     case '/': | 
 |         if (__str) | 
 |             *__str = *__first; | 
 |         else | 
 |             __push_char(*__first); | 
 |         return ++__first; | 
 |     case 'a': | 
 |         if (__str) | 
 |             *__str = _CharT(7); | 
 |         else | 
 |             __push_char(_CharT(7)); | 
 |         return ++__first; | 
 |     case 'b': | 
 |         if (__str) | 
 |             *__str = _CharT(8); | 
 |         else | 
 |             __push_char(_CharT(8)); | 
 |         return ++__first; | 
 |     case 'f': | 
 |         if (__str) | 
 |             *__str = _CharT(0xC); | 
 |         else | 
 |             __push_char(_CharT(0xC)); | 
 |         return ++__first; | 
 |     case 'n': | 
 |         if (__str) | 
 |             *__str = _CharT(0xA); | 
 |         else | 
 |             __push_char(_CharT(0xA)); | 
 |         return ++__first; | 
 |     case 'r': | 
 |         if (__str) | 
 |             *__str = _CharT(0xD); | 
 |         else | 
 |             __push_char(_CharT(0xD)); | 
 |         return ++__first; | 
 |     case 't': | 
 |         if (__str) | 
 |             *__str = _CharT(0x9); | 
 |         else | 
 |             __push_char(_CharT(0x9)); | 
 |         return ++__first; | 
 |     case 'v': | 
 |         if (__str) | 
 |             *__str = _CharT(0xB); | 
 |         else | 
 |             __push_char(_CharT(0xB)); | 
 |         return ++__first; | 
 |     } | 
 |     if ('0' <= *__first && *__first <= '7') | 
 |     { | 
 |         unsigned __val = *__first - '0'; | 
 |         if (++__first != __last && ('0' <= *__first && *__first <= '7')) | 
 |         { | 
 |             __val = 8 * __val + *__first - '0'; | 
 |             if (++__first != __last && ('0' <= *__first && *__first <= '7')) | 
 |                 __val = 8 * __val + *__first - '0'; | 
 |         } | 
 |         if (__str) | 
 |             *__str = _CharT(__val); | 
 |         else | 
 |             __push_char(_CharT(__val)); | 
 |     } | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     else | 
 |         throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_equivalence_class(_ForwardIterator __first, | 
 |                                     _ForwardIterator __last, | 
 |                                     __bracket_expression<_CharT, _Traits>* __ml) | 
 | { | 
 |     // Found [= | 
 |     //   This means =] must exist | 
 |     value_type _Equal_close[2] = {'=', ']'}; | 
 |     _ForwardIterator __temp = _STD::search(__first, __last, _Equal_close, | 
 |                                                             _Equal_close+2); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     if (__temp == __last) | 
 |         throw regex_error(regex_constants::error_brack); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     // [__first, __temp) contains all text in [= ... =] | 
 |     typedef typename _Traits::string_type string_type; | 
 |     string_type __collate_name = | 
 |         __traits_.lookup_collatename(__first, __temp); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     if (__collate_name.empty()) | 
 |         throw regex_error(regex_constants::error_collate); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     string_type __equiv_name = | 
 |         __traits_.transform_primary(__collate_name.begin(), | 
 |                                     __collate_name.end()); | 
 |     if (!__equiv_name.empty()) | 
 |         __ml->__add_equivalence(__equiv_name); | 
 |     else | 
 |     { | 
 |         switch (__collate_name.size()) | 
 |         { | 
 |         case 1: | 
 |             __ml->__add_char(__collate_name[0]); | 
 |             break; | 
 |         case 2: | 
 |             __ml->__add_digraph(__collate_name[0], __collate_name[1]); | 
 |             break; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         default: | 
 |             throw regex_error(regex_constants::error_collate); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |         } | 
 |     } | 
 |     __first = next(__temp, 2); | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_character_class(_ForwardIterator __first, | 
 |                                     _ForwardIterator __last, | 
 |                                     __bracket_expression<_CharT, _Traits>* __ml) | 
 | { | 
 |     // Found [: | 
 |     //   This means :] must exist | 
 |     value_type _Colon_close[2] = {':', ']'}; | 
 |     _ForwardIterator __temp = _STD::search(__first, __last, _Colon_close, | 
 |                                                             _Colon_close+2); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     if (__temp == __last) | 
 |         throw regex_error(regex_constants::error_brack); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     // [__first, __temp) contains all text in [: ... :] | 
 |     typedef typename _Traits::char_class_type char_class_type; | 
 |     char_class_type __class_type = | 
 |         __traits_.lookup_classname(__first, __temp, __flags_ & icase); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     if (__class_type == 0) | 
 |         throw regex_error(regex_constants::error_brack); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     __ml->__add_class(__class_type); | 
 |     __first = next(__temp, 2); | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_collating_symbol(_ForwardIterator __first, | 
 |                                                 _ForwardIterator __last, | 
 |                                                 basic_string<_CharT>& __col_sym) | 
 | { | 
 |     // Found [. | 
 |     //   This means .] must exist | 
 |     value_type _Dot_close[2] = {'.', ']'}; | 
 |     _ForwardIterator __temp = _STD::search(__first, __last, _Dot_close, | 
 |                                                             _Dot_close+2); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     if (__temp == __last) | 
 |         throw regex_error(regex_constants::error_brack); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     // [__first, __temp) contains all text in [. ... .] | 
 |     typedef typename _Traits::string_type string_type; | 
 |     __col_sym = __traits_.lookup_collatename(__first, __temp); | 
 |     switch (__col_sym.size()) | 
 |     { | 
 |     case 1: | 
 |     case 2: | 
 |         break; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     default: | 
 |         throw regex_error(regex_constants::error_collate); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |     } | 
 |     __first = next(__temp, 2); | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_DUP_COUNT(_ForwardIterator __first, | 
 |                                                 _ForwardIterator __last, | 
 |                                                 int& __c) | 
 | { | 
 |     if (__first != __last && '0' <= *__first && *__first <= '9') | 
 |     { | 
 |         __c = *__first - '0'; | 
 |         for (++__first; __first != __last && '0' <= *__first && *__first <= '9'; | 
 |                                                                       ++__first) | 
 |         { | 
 |             __c *= 10; | 
 |             __c += *__first - '0'; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_ecma_exp(_ForwardIterator __first, | 
 |                                                _ForwardIterator __last) | 
 | { | 
 |     __owns_one_state<_CharT>* __sa = __end_; | 
 |     _ForwardIterator __temp = __parse_alternative(__first, __last); | 
 |     if (__temp == __first) | 
 |         __push_empty(); | 
 |     __first = __temp; | 
 |     while (__first != __last && *__first == '|') | 
 |     { | 
 |         __owns_one_state<_CharT>* __sb = __end_; | 
 |         __temp = __parse_alternative(++__first, __last); | 
 |         if (__temp == __first) | 
 |             __push_empty(); | 
 |         __push_alternation(__sa, __sb); | 
 |         __first = __temp; | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_alternative(_ForwardIterator __first, | 
 |                                                   _ForwardIterator __last) | 
 | { | 
 |     while (true) | 
 |     { | 
 |         _ForwardIterator __temp = __parse_term(__first, __last); | 
 |         if (__temp == __first) | 
 |             break; | 
 |         __first = __temp; | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_term(_ForwardIterator __first, | 
 |                                            _ForwardIterator __last) | 
 | { | 
 |     _ForwardIterator __temp = __parse_assertion(__first, __last); | 
 |     if (__temp == __first) | 
 |     { | 
 |         __owns_one_state<_CharT>* __e = __end_; | 
 |         unsigned __mexp_begin = __marked_count_; | 
 |         __temp = __parse_atom(__first, __last); | 
 |         if (__temp != __first) | 
 |             __first = __parse_ERE_dupl_symbol(__temp, __last, __e, | 
 |                                               __mexp_begin+1, __marked_count_+1); | 
 |     } | 
 |     else | 
 |         __first = __temp; | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_assertion(_ForwardIterator __first, | 
 |                                                 _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         switch (*__first) | 
 |         { | 
 |         case '^': | 
 |             __push_l_anchor(); | 
 |             ++__first; | 
 |             break; | 
 |         case '$': | 
 |             __push_r_anchor(); | 
 |             ++__first; | 
 |             break; | 
 |         case '\\': | 
 |             { | 
 |                 _ForwardIterator __temp = _STD::next(__first); | 
 |                 if (__temp != __last) | 
 |                 { | 
 |                     if (*__temp == 'b') | 
 |                     { | 
 |                         __push_word_boundary(false); | 
 |                         __first = ++__temp; | 
 |                     } | 
 |                     else if (*__temp == 'B') | 
 |                     { | 
 |                         __push_word_boundary(true); | 
 |                         __first = ++__temp; | 
 |                     } | 
 |                 } | 
 |             } | 
 |             break; | 
 |         case '(': | 
 |             { | 
 |                 _ForwardIterator __temp = _STD::next(__first); | 
 |                 if (__temp != __last && *__temp == '?') | 
 |                 { | 
 |                     if (++__temp != __last) | 
 |                     { | 
 |                         switch (*__temp) | 
 |                         { | 
 |                         case '=': | 
 |                             { | 
 |                                 basic_regex __exp; | 
 |                                 __exp.__flags_ = __flags_; | 
 |                                 __temp = __exp.__parse(++__temp, __last); | 
 |                                 __exp.__push_l_anchor(); | 
 |                                 __push_lookahead(_STD::move(__exp), false); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                                 if (__temp == __last || *__temp != ')') | 
 |                                     throw regex_error(regex_constants::error_paren); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                                 __first = ++__temp; | 
 |                             } | 
 |                             break; | 
 |                         case '!': | 
 |                             { | 
 |                                 basic_regex __exp; | 
 |                                 __exp.__flags_ = __flags_; | 
 |                                 __temp = __exp.__parse(++__temp, __last); | 
 |                                 __exp.__push_l_anchor(); | 
 |                                 __push_lookahead(_STD::move(__exp), true); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                                 if (__temp == __last || *__temp != ')') | 
 |                                     throw regex_error(regex_constants::error_paren); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                                 __first = ++__temp; | 
 |                             } | 
 |                             break; | 
 |                         } | 
 |                     } | 
 |                 } | 
 |             } | 
 |             break; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_atom(_ForwardIterator __first, | 
 |                                            _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         switch (*__first) | 
 |         { | 
 |         case '.': | 
 |             __push_match_any_but_newline(); | 
 |             ++__first; | 
 |             break; | 
 |         case '\\': | 
 |             __first = __parse_atom_escape(__first, __last); | 
 |             break; | 
 |         case '[': | 
 |             __first = __parse_bracket_expression(__first, __last); | 
 |             break; | 
 |         case '(': | 
 |             { | 
 |                 ++__first; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                 if (__first == __last) | 
 |                     throw regex_error(regex_constants::error_paren); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                 _ForwardIterator __temp = _STD::next(__first); | 
 |                 if (__temp != __last && *__first == '?' && *__temp == ':') | 
 |                 { | 
 |                     ++__open_count_; | 
 |                     __first = __parse_ecma_exp(++__temp, __last); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                     if (__first == __last || *__first != ')') | 
 |                         throw regex_error(regex_constants::error_paren); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                     --__open_count_; | 
 |                     ++__first; | 
 |                 } | 
 |                 else | 
 |                 { | 
 |                     __push_begin_marked_subexpression(); | 
 |                     unsigned __temp_count = __marked_count_; | 
 |                     ++__open_count_; | 
 |                     __first = __parse_ecma_exp(__first, __last); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                     if (__first == __last || *__first != ')') | 
 |                         throw regex_error(regex_constants::error_paren); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |                     __push_end_marked_subexpression(__temp_count); | 
 |                     --__open_count_; | 
 |                     ++__first; | 
 |                 } | 
 |             } | 
 |             break; | 
 |         default: | 
 |             __first = __parse_pattern_character(__first, __last); | 
 |             break; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_atom_escape(_ForwardIterator __first, | 
 |                                                   _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last && *__first == '\\') | 
 |     { | 
 |         _ForwardIterator __t1 = _STD::next(__first); | 
 |         _ForwardIterator __t2 = __parse_decimal_escape(__t1, __last); | 
 |         if (__t2 != __t1) | 
 |             __first = __t2; | 
 |         else | 
 |         { | 
 |             __t2 = __parse_character_class_escape(__t1, __last); | 
 |             if (__t2 != __t1) | 
 |                 __first = __t2; | 
 |             else | 
 |             { | 
 |                 __t2 = __parse_character_escape(__t1, __last); | 
 |                 if (__t2 != __t1) | 
 |                     __first = __t2; | 
 |             } | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_decimal_escape(_ForwardIterator __first, | 
 |                                                      _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         if (*__first == '0') | 
 |         { | 
 |             __push_char(_CharT()); | 
 |             ++__first; | 
 |         } | 
 |         else if ('1' <= *__first && *__first <= '9') | 
 |         { | 
 |             unsigned __v = *__first - '0'; | 
 |             for (++__first; '0' <= *__first && *__first <= '9'; ++__first) | 
 |                 __v = 10 * __v + *__first - '0'; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__v > mark_count()) | 
 |                 throw regex_error(regex_constants::error_backref); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __push_back_ref(__v); | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_character_class_escape(_ForwardIterator __first, | 
 |                                                              _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         __bracket_expression<_CharT, _Traits>* __ml; | 
 |         switch (*__first) | 
 |         { | 
 |         case 'd': | 
 |             __ml = __start_matching_list(false); | 
 |             __ml->__add_class(ctype_base::digit); | 
 |             ++__first; | 
 |             break; | 
 |         case 'D': | 
 |             __ml = __start_matching_list(true); | 
 |             __ml->__add_class(ctype_base::digit); | 
 |             ++__first; | 
 |             break; | 
 |         case 's': | 
 |             __ml = __start_matching_list(false); | 
 |             __ml->__add_class(ctype_base::space); | 
 |             ++__first; | 
 |             break; | 
 |         case 'S': | 
 |             __ml = __start_matching_list(true); | 
 |             __ml->__add_class(ctype_base::space); | 
 |             ++__first; | 
 |             break; | 
 |         case 'w': | 
 |             __ml = __start_matching_list(false); | 
 |             __ml->__add_class(ctype_base::alnum); | 
 |             __ml->__add_char('_'); | 
 |             ++__first; | 
 |             break; | 
 |         case 'W': | 
 |             __ml = __start_matching_list(true); | 
 |             __ml->__add_class(ctype_base::alnum); | 
 |             __ml->__add_char('_'); | 
 |             ++__first; | 
 |             break; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_character_escape(_ForwardIterator __first, | 
 |                                                     _ForwardIterator __last, | 
 |                                                     basic_string<_CharT>* __str) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         _ForwardIterator __t; | 
 |         unsigned __sum = 0; | 
 |         int __hd; | 
 |         switch (*__first) | 
 |         { | 
 |         case 'f': | 
 |             if (__str) | 
 |                 *__str = _CharT(0xC); | 
 |             else | 
 |                 __push_char(_CharT(0xC)); | 
 |             ++__first; | 
 |             break; | 
 |         case 'n': | 
 |             if (__str) | 
 |                 *__str = _CharT(0xA); | 
 |             else | 
 |                 __push_char(_CharT(0xA)); | 
 |             ++__first; | 
 |             break; | 
 |         case 'r': | 
 |             if (__str) | 
 |                 *__str = _CharT(0xD); | 
 |             else | 
 |                 __push_char(_CharT(0xD)); | 
 |             ++__first; | 
 |             break; | 
 |         case 't': | 
 |             if (__str) | 
 |                 *__str = _CharT(0x9); | 
 |             else | 
 |                 __push_char(_CharT(0x9)); | 
 |             ++__first; | 
 |             break; | 
 |         case 'v': | 
 |             if (__str) | 
 |                 *__str = _CharT(0xB); | 
 |             else | 
 |                 __push_char(_CharT(0xB)); | 
 |             ++__first; | 
 |             break; | 
 |         case 'c': | 
 |             if ((__t = _STD::next(__first)) != __last) | 
 |             { | 
 |                 if ('A' <= *__t <= 'Z' || 'a' <= *__t <= 'z') | 
 |                 { | 
 |                     if (__str) | 
 |                         *__str = _CharT(*__t % 32); | 
 |                     else | 
 |                         __push_char(_CharT(*__t % 32)); | 
 |                     __first = ++__t; | 
 |                 } | 
 |             } | 
 |             break; | 
 |         case 'u': | 
 |             ++__first; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__first == __last) | 
 |                 throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __hd = __traits_.value(*__first, 16); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__hd == -1) | 
 |                 throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __sum = 16 * __sum + __hd; | 
 |             ++__first; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__first == __last) | 
 |                 throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __hd = __traits_.value(*__first, 16); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__hd == -1) | 
 |                 throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __sum = 16 * __sum + __hd; | 
 |             // drop through | 
 |         case 'x': | 
 |             ++__first; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__first == __last) | 
 |                 throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __hd = __traits_.value(*__first, 16); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__hd == -1) | 
 |                 throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __sum = 16 * __sum + __hd; | 
 |             ++__first; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__first == __last) | 
 |                 throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __hd = __traits_.value(*__first, 16); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             if (__hd == -1) | 
 |                 throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             __sum = 16 * __sum + __hd; | 
 |             if (__str) | 
 |                 *__str = _CharT(__sum); | 
 |             else | 
 |                 __push_char(_CharT(__sum)); | 
 |             ++__first; | 
 |             break; | 
 |         default: | 
 |             if (*__first != '_' && !__traits_.isctype(*__first, ctype_base::alnum)) | 
 |             { | 
 |                 if (__str) | 
 |                     *__str = *__first; | 
 |                 else | 
 |                     __push_char(*__first); | 
 |                 ++__first; | 
 |             } | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |             else if (__str) | 
 |                 throw regex_error(regex_constants::error_escape); | 
 | #endif  // _LIBCPP_NO_EXCEPTIONS | 
 |             break; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_pattern_character(_ForwardIterator __first, | 
 |                                                         _ForwardIterator __last) | 
 | { | 
 |     if (__first != __last) | 
 |     { | 
 |         switch (*__first) | 
 |         { | 
 |         case '^': | 
 |         case '$': | 
 |         case '\\': | 
 |         case '.': | 
 |         case '*': | 
 |         case '+': | 
 |         case '?': | 
 |         case '(': | 
 |         case ')': | 
 |         case '[': | 
 |         case ']': | 
 |         case '{': | 
 |         case '}': | 
 |         case '|': | 
 |             break; | 
 |         default: | 
 |             __push_char(*__first); | 
 |             ++__first; | 
 |             break; | 
 |         } | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_grep(_ForwardIterator __first, | 
 |                                            _ForwardIterator __last) | 
 | { | 
 |     __owns_one_state<_CharT>* __sa = __end_; | 
 |     _ForwardIterator __t1 = _STD::find(__first, __last, _CharT('\n')); | 
 |     if (__t1 != __first) | 
 |         __parse_basic_reg_exp(__first, __t1); | 
 |     else | 
 |         __push_empty(); | 
 |     __first = __t1; | 
 |     if (__first != __last) | 
 |         ++__first; | 
 |     while (__first != __last) | 
 |     { | 
 |         __t1 = _STD::find(__first, __last, _CharT('\n')); | 
 |         __owns_one_state<_CharT>* __sb = __end_; | 
 |         if (__t1 != __first) | 
 |             __parse_basic_reg_exp(__first, __t1); | 
 |         else | 
 |             __push_empty(); | 
 |         __push_alternation(__sa, __sb); | 
 |         __first = __t1; | 
 |         if (__first != __last) | 
 |             ++__first; | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _ForwardIterator> | 
 | _ForwardIterator | 
 | basic_regex<_CharT, _Traits>::__parse_egrep(_ForwardIterator __first, | 
 |                                             _ForwardIterator __last) | 
 | { | 
 |     __owns_one_state<_CharT>* __sa = __end_; | 
 |     _ForwardIterator __t1 = _STD::find(__first, __last, _CharT('\n')); | 
 |     if (__t1 != __first) | 
 |         __parse_extended_reg_exp(__first, __t1); | 
 |     else | 
 |         __push_empty(); | 
 |     __first = __t1; | 
 |     if (__first != __last) | 
 |         ++__first; | 
 |     while (__first != __last) | 
 |     { | 
 |         __t1 = _STD::find(__first, __last, _CharT('\n')); | 
 |         __owns_one_state<_CharT>* __sb = __end_; | 
 |         if (__t1 != __first) | 
 |             __parse_extended_reg_exp(__first, __t1); | 
 |         else | 
 |             __push_empty(); | 
 |         __push_alternation(__sa, __sb); | 
 |         __first = __t1; | 
 |         if (__first != __last) | 
 |             ++__first; | 
 |     } | 
 |     return __first; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_loop(size_t __min, size_t __max, | 
 |         __owns_one_state<_CharT>* __s, size_t __mexp_begin, size_t __mexp_end, | 
 |         bool __greedy) | 
 | { | 
 |     unique_ptr<__empty_state<_CharT> > __e1(new __empty_state<_CharT>(__end_->first())); | 
 |     __end_->first() = nullptr; | 
 |     unique_ptr<__loop<_CharT> > __e2(new __loop<_CharT>(__loop_count_, | 
 |                 __s->first(), __e1.get(), __mexp_begin, __mexp_end, __greedy, | 
 |                 __min, __max)); | 
 |     __s->first() = nullptr; | 
 |     __e1.release(); | 
 |     __end_->first() = new __repeat_one_loop<_CharT>(__e2.get()); | 
 |     __end_ = __e2->second(); | 
 |     __s->first() = __e2.release(); | 
 |     ++__loop_count_; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_char(value_type __c) | 
 | { | 
 |     if (flags() & icase) | 
 |         __end_->first() = new __match_char_icase<_CharT, _Traits> | 
 |                                               (__traits_, __c, __end_->first()); | 
 |     else if (flags() & collate) | 
 |         __end_->first() = new __match_char_collate<_CharT, _Traits> | 
 |                                               (__traits_, __c, __end_->first()); | 
 |     else | 
 |         __end_->first() = new __match_char<_CharT>(__c, __end_->first()); | 
 |     __end_ = static_cast<__owns_one_state<_CharT>*>(__end_->first()); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_begin_marked_subexpression() | 
 | { | 
 |     if (!(__flags_ & nosubs)) | 
 |     { | 
 |         __end_->first() = | 
 |                 new __begin_marked_subexpression<_CharT>(++__marked_count_, | 
 |                                                          __end_->first()); | 
 |         __end_ = static_cast<__owns_one_state<_CharT>*>(__end_->first()); | 
 |     } | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_end_marked_subexpression(unsigned __sub) | 
 | { | 
 |     if (!(__flags_ & nosubs)) | 
 |     { | 
 |         __end_->first() = | 
 |                 new __end_marked_subexpression<_CharT>(__sub, __end_->first()); | 
 |         __end_ = static_cast<__owns_one_state<_CharT>*>(__end_->first()); | 
 |     } | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_r_anchor() | 
 | { | 
 |     __end_->first() = new __r_anchor<_CharT>(__end_->first()); | 
 |     __end_ = static_cast<__owns_one_state<_CharT>*>(__end_->first()); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_match_any() | 
 | { | 
 |     __end_->first() = new __match_any<_CharT>(__end_->first()); | 
 |     __end_ = static_cast<__owns_one_state<_CharT>*>(__end_->first()); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_match_any_but_newline() | 
 | { | 
 |     __end_->first() = new __match_any_but_newline<_CharT>(__end_->first()); | 
 |     __end_ = static_cast<__owns_one_state<_CharT>*>(__end_->first()); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_empty() | 
 | { | 
 |     __end_->first() = new __empty_state<_CharT>(__end_->first()); | 
 |     __end_ = static_cast<__owns_one_state<_CharT>*>(__end_->first()); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_word_boundary(bool __invert) | 
 | { | 
 |     __end_->first() = new __word_boundary<_CharT, _Traits>(__traits_, __invert, | 
 |                                                            __end_->first()); | 
 |     __end_ = static_cast<__owns_one_state<_CharT>*>(__end_->first()); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_back_ref(int __i) | 
 | { | 
 |     if (flags() & icase) | 
 |         __end_->first() = new __back_ref_icase<_CharT, _Traits> | 
 |                                               (__traits_, __i, __end_->first()); | 
 |     else if (flags() & collate) | 
 |         __end_->first() = new __back_ref_collate<_CharT, _Traits> | 
 |                                               (__traits_, __i, __end_->first()); | 
 |     else | 
 |         __end_->first() = new __back_ref<_CharT>(__i, __end_->first()); | 
 |     __end_ = static_cast<__owns_one_state<_CharT>*>(__end_->first()); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_alternation(__owns_one_state<_CharT>* __sa, | 
 |                                                  __owns_one_state<_CharT>* __ea) | 
 | { | 
 |     __sa->first() = new __alternate<_CharT>( | 
 |                          static_cast<__owns_one_state<_CharT>*>(__sa->first()), | 
 |                          static_cast<__owns_one_state<_CharT>*>(__ea->first())); | 
 |     __ea->first() = nullptr; | 
 |     __ea->first() = new __empty_state<_CharT>(__end_->first()); | 
 |     __end_->first() = nullptr; | 
 |     __end_->first() = new __empty_non_own_state<_CharT>(__ea->first()); | 
 |     __end_ = static_cast<__owns_one_state<_CharT>*>(__ea->first()); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | __bracket_expression<_CharT, _Traits>* | 
 | basic_regex<_CharT, _Traits>::__start_matching_list(bool __negate) | 
 | { | 
 |     __bracket_expression<_CharT, _Traits>* __r = | 
 |         new __bracket_expression<_CharT, _Traits>(__traits_, __end_->first(), | 
 |                                                   __negate, __flags_ & icase, | 
 |                                                   __flags_ & collate); | 
 |     __end_->first() = __r; | 
 |     __end_ = __r; | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | void | 
 | basic_regex<_CharT, _Traits>::__push_lookahead(const basic_regex& __exp, | 
 |                                                bool __invert) | 
 | { | 
 |     __end_->first() = new __lookahead<_CharT, _Traits>(__exp, __invert, | 
 |                                                            __end_->first()); | 
 |     __end_ = static_cast<__owns_one_state<_CharT>*>(__end_->first()); | 
 | } | 
 |  | 
 | typedef basic_regex<char>    regex; | 
 | typedef basic_regex<wchar_t> wregex; | 
 |  | 
 | // sub_match | 
 |  | 
 | template <class _BidirectionalIterator> | 
 | class _LIBCPP_VISIBLE sub_match | 
 |     : public pair<_BidirectionalIterator, _BidirectionalIterator> | 
 | { | 
 | public: | 
 |     typedef _BidirectionalIterator                              iterator; | 
 |     typedef typename iterator_traits<iterator>::value_type      value_type; | 
 |     typedef typename iterator_traits<iterator>::difference_type difference_type; | 
 |     typedef basic_string<value_type>                            string_type; | 
 |  | 
 |     bool matched; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     /*constexpr*/ sub_match() : matched() {} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     difference_type length() const | 
 |         {return matched ? _STD::distance(this->first, this->second) : 0;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     string_type str() const | 
 |         {return matched ? string_type(this->first, this->second) : string_type();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     operator string_type() const | 
 |         {return str();} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     int compare(const sub_match& __s) const | 
 |         {return str().compare(__s.str());} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     int compare(const string_type& __s) const | 
 |         {return str().compare(__s);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     int compare(const value_type* __s) const | 
 |         {return str().compare(__s);} | 
 | }; | 
 |  | 
 | typedef sub_match<const char*>             csub_match; | 
 | typedef sub_match<const wchar_t*>          wcsub_match; | 
 | typedef sub_match<string::const_iterator>  ssub_match; | 
 | typedef sub_match<wstring::const_iterator> wssub_match; | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator==(const sub_match<_BiIter>& __x, const sub_match<_BiIter>& __y) | 
 | { | 
 |     return __x.compare(__y) == 0; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator!=(const sub_match<_BiIter>& __x, const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__x == __y); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<(const sub_match<_BiIter>& __x, const sub_match<_BiIter>& __y) | 
 | { | 
 |     return __x.compare(__y) < 0; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<=(const sub_match<_BiIter>& __x, const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__y < __x); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>=(const sub_match<_BiIter>& __x, const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__x < __y); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>(const sub_match<_BiIter>& __x, const sub_match<_BiIter>& __y) | 
 | { | 
 |     return __y < __x; | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator==(const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     return __y.compare(__x.c_str()) == 0; | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator!=(const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__x == __y); | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<(const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __x, | 
 |           const sub_match<_BiIter>& __y) | 
 | { | 
 |     return __y.compare(__x.c_str()) > 0; | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>(const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __x, | 
 |           const sub_match<_BiIter>& __y) | 
 | { | 
 |     return __y < __x; | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool operator>=(const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __x, | 
 |                 const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__x < __y); | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<=(const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__y < __x); | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator==(const sub_match<_BiIter>& __x, | 
 |            const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __y) | 
 | { | 
 |     return __x.compare(__y.c_str()) == 0; | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator!=(const sub_match<_BiIter>& __x, | 
 |            const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __y) | 
 | { | 
 |     return !(__x == __y); | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<(const sub_match<_BiIter>& __x, | 
 |           const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __y) | 
 | { | 
 |     return __x.compare(__y.c_str()) < 0; | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool operator>(const sub_match<_BiIter>& __x, | 
 |                const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __y) | 
 | { | 
 |     return __y < __x; | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>=(const sub_match<_BiIter>& __x, | 
 |            const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __y) | 
 | { | 
 |     return !(__x < __y); | 
 | } | 
 |  | 
 | template <class _BiIter, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<=(const sub_match<_BiIter>& __x, | 
 |            const basic_string<typename iterator_traits<_BiIter>::value_type, _ST, _SA>& __y) | 
 | { | 
 |     return !(__y < __x); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator==(typename iterator_traits<_BiIter>::value_type const* __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     return __y.compare(__x) == 0; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator!=(typename iterator_traits<_BiIter>::value_type const* __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__x == __y); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<(typename iterator_traits<_BiIter>::value_type const* __x, | 
 |           const sub_match<_BiIter>& __y) | 
 | { | 
 |     return __y.compare(__x) > 0; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>(typename iterator_traits<_BiIter>::value_type const* __x, | 
 |           const sub_match<_BiIter>& __y) | 
 | { | 
 |     return __y < __x; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>=(typename iterator_traits<_BiIter>::value_type const* __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__x < __y); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<=(typename iterator_traits<_BiIter>::value_type const* __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__y < __x); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator==(const sub_match<_BiIter>& __x, | 
 |            typename iterator_traits<_BiIter>::value_type const* __y) | 
 | { | 
 |     return __x.compare(__y) == 0; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator!=(const sub_match<_BiIter>& __x, | 
 |            typename iterator_traits<_BiIter>::value_type const* __y) | 
 | { | 
 |     return !(__x == __y); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<(const sub_match<_BiIter>& __x, | 
 |           typename iterator_traits<_BiIter>::value_type const* __y) | 
 | { | 
 |     return __x.compare(__y) < 0; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>(const sub_match<_BiIter>& __x, | 
 |           typename iterator_traits<_BiIter>::value_type const* __y) | 
 | { | 
 |     return __y < __x; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>=(const sub_match<_BiIter>& __x, | 
 |            typename iterator_traits<_BiIter>::value_type const* __y) | 
 | { | 
 |     return !(__x < __y); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<=(const sub_match<_BiIter>& __x, | 
 |            typename iterator_traits<_BiIter>::value_type const* __y) | 
 | { | 
 |     return !(__y < __x); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator==(typename iterator_traits<_BiIter>::value_type const& __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     typedef basic_string<typename iterator_traits<_BiIter>::value_type> string_type; | 
 |     return __y.compare(string_type(1, __x)) == 0; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator!=(typename iterator_traits<_BiIter>::value_type const& __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__x == __y); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<(typename iterator_traits<_BiIter>::value_type const& __x, | 
 |           const sub_match<_BiIter>& __y) | 
 | { | 
 |     typedef basic_string<typename iterator_traits<_BiIter>::value_type> string_type; | 
 |     return __y.compare(string_type(1, __x)) > 0; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>(typename iterator_traits<_BiIter>::value_type const& __x, | 
 |           const sub_match<_BiIter>& __y) | 
 | { | 
 |     return __y < __x; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>=(typename iterator_traits<_BiIter>::value_type const& __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__x < __y); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<=(typename iterator_traits<_BiIter>::value_type const& __x, | 
 |            const sub_match<_BiIter>& __y) | 
 | { | 
 |     return !(__y < __x); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator==(const sub_match<_BiIter>& __x, | 
 |            typename iterator_traits<_BiIter>::value_type const& __y) | 
 | { | 
 |     typedef basic_string<typename iterator_traits<_BiIter>::value_type> string_type; | 
 |     return __x.compare(string_type(1, __y)) == 0; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator!=(const sub_match<_BiIter>& __x, | 
 |            typename iterator_traits<_BiIter>::value_type const& __y) | 
 | { | 
 |     return !(__x == __y); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<(const sub_match<_BiIter>& __x, | 
 |           typename iterator_traits<_BiIter>::value_type const& __y) | 
 | { | 
 |     typedef basic_string<typename iterator_traits<_BiIter>::value_type> string_type; | 
 |     return __x.compare(string_type(1, __y)) < 0; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>(const sub_match<_BiIter>& __x, | 
 |           typename iterator_traits<_BiIter>::value_type const& __y) | 
 | { | 
 |     return __y < __x; | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>=(const sub_match<_BiIter>& __x, | 
 |            typename iterator_traits<_BiIter>::value_type const& __y) | 
 | { | 
 |     return !(__x < __y); | 
 | } | 
 |  | 
 | template <class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<=(const sub_match<_BiIter>& __x, | 
 |            typename iterator_traits<_BiIter>::value_type const& __y) | 
 | { | 
 |     return !(__y < __x); | 
 | } | 
 |  | 
 | template <class _CharT, class _ST, class _BiIter> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | basic_ostream<_CharT, _ST>& | 
 | operator<<(basic_ostream<_CharT, _ST>& __os, const sub_match<_BiIter>& __m) | 
 | { | 
 |     return __os << __m.str(); | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _Allocator> | 
 | class _LIBCPP_VISIBLE match_results | 
 | { | 
 | public: | 
 |     typedef _Allocator                                        allocator_type; | 
 |     typedef sub_match<_BidirectionalIterator>                 value_type; | 
 | private: | 
 |     typedef vector<value_type, allocator_type>                __container_type; | 
 |  | 
 |     __container_type  __matches_; | 
 |     value_type __unmatched_; | 
 |     value_type __prefix_; | 
 |     value_type __suffix_; | 
 |     bool       __ready_; | 
 | public: | 
 |     _BidirectionalIterator __position_start_; | 
 |     typedef const value_type&                                 const_reference; | 
 |     typedef const_reference                                   reference; | 
 |     typedef typename __container_type::const_iterator         const_iterator; | 
 |     typedef const_iterator                                    iterator; | 
 |     typedef typename iterator_traits<_BidirectionalIterator>::difference_type difference_type; | 
 |     typedef typename allocator_traits<allocator_type>::size_type size_type; | 
 |     typedef typename iterator_traits<_BidirectionalIterator>::value_type char_type; | 
 |     typedef basic_string<char_type>                           string_type; | 
 |  | 
 |     // construct/copy/destroy: | 
 |     explicit match_results(const allocator_type& __a = allocator_type()); | 
 | //    match_results(const match_results&) = default; | 
 | //    match_results& operator=(const match_results&) = default; | 
 | //    match_results(match_results&& __m) = default; | 
 | //    match_results& operator=(match_results&& __m) = default; | 
 | //    ~match_results() = default; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     bool ready() const {return __ready_;} | 
 |  | 
 |     // size: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     size_type size() const {return __matches_.size();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     size_type max_size() const {return __matches_.max_size();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     bool empty() const {return size() == 0;} | 
 |  | 
 |     // element access: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     difference_type length(size_type __sub = 0) const | 
 |         {return (*this)[__sub].length();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     difference_type position(size_type __sub = 0) const | 
 |         {return _STD::distance(__position_start_, (*this)[__sub].first);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     string_type str(size_type __sub = 0) const | 
 |         {return (*this)[__sub].str();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reference operator[](size_type __n) const | 
 |         {return __n < __matches_.size() ? __matches_[__n] : __unmatched_;} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reference prefix() const {return __prefix_;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reference suffix() const {return __suffix_;} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator begin() const {return empty() ? __matches_.end() : __matches_.begin() + 1;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator end() const {return __matches_.end();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator cbegin() const {return empty() ? __matches_.end() : __matches_.begin() + 1;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator cend() const {return __matches_.end();} | 
 |  | 
 |     // format: | 
 |     template <class _OutputIter> | 
 |         _OutputIter | 
 |         format(_OutputIter __out, const char_type* __fmt_first, | 
 |                const char_type* __fmt_last, | 
 |                regex_constants::match_flag_type __flags = regex_constants::format_default) const; | 
 |     template <class _OutputIter, class _ST, class _SA> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         _OutputIter | 
 |         format(_OutputIter __out, const basic_string<char_type, _ST, _SA>& __fmt, | 
 |                regex_constants::match_flag_type __flags = regex_constants::format_default) const | 
 |             {return format(__out, __fmt.data(), __fmt.data() + __fmt.size(), __flags);} | 
 |     template <class _ST, class _SA> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         basic_string<char_type, _ST, _SA> | 
 |         format(const basic_string<char_type, _ST, _SA>& __fmt, | 
 |                regex_constants::match_flag_type __flags = regex_constants::format_default) const | 
 |         { | 
 |             basic_string<char_type, _ST, _SA> __r; | 
 |             format(back_inserter(__r), __fmt.data(), __fmt.data() + __fmt.size(), | 
 |                    __flags); | 
 |             return __r; | 
 |         } | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     string_type | 
 |         format(const char_type* __fmt, | 
 |                regex_constants::match_flag_type __flags = regex_constants::format_default) const | 
 |         { | 
 |             string_type __r; | 
 |             format(back_inserter(__r), __fmt, | 
 |                    __fmt + char_traits<char_type>::length(__fmt), __flags); | 
 |             return __r; | 
 |         } | 
 |  | 
 |     // allocator: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     allocator_type get_allocator() const {return __matches_.get_allocator();} | 
 |  | 
 |     // swap: | 
 |     void swap(match_results& __m); | 
 |  | 
 |     template <class _B, class _A> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 |         void __assign(_BidirectionalIterator __f, _BidirectionalIterator __l, | 
 |                       const match_results<_B, _A>& __m, bool __no_update_pos) | 
 |     { | 
 |         _B __mf = __m.prefix().first; | 
 |         __matches_.resize(__m.size()); | 
 |         for (size_type __i = 0; __i < __matches_.size(); ++__i) | 
 |         { | 
 |             __matches_[__i].first = next(__f, _STD::distance(__mf, __m[__i].first)); | 
 |             __matches_[__i].second = next(__f, _STD::distance(__mf, __m[__i].second)); | 
 |             __matches_[__i].matched = __m[__i].matched; | 
 |         } | 
 |         __unmatched_.first   = __l; | 
 |         __unmatched_.second  = __l; | 
 |         __unmatched_.matched = false; | 
 |         __prefix_.first = next(__f, _STD::distance(__mf, __m.prefix().first)); | 
 |         __prefix_.second = next(__f, _STD::distance(__mf, __m.prefix().second)); | 
 |         __prefix_.matched = __m.prefix().matched; | 
 |         __suffix_.first = next(__f, _STD::distance(__mf, __m.suffix().first)); | 
 |         __suffix_.second = next(__f, _STD::distance(__mf, __m.suffix().second)); | 
 |         __suffix_.matched = __m.suffix().matched; | 
 |         if (!__no_update_pos) | 
 |             __position_start_ = __prefix_.first; | 
 |         __ready_ = __m.ready(); | 
 |     } | 
 |  | 
 | private: | 
 |     void __init(unsigned __s, | 
 |                 _BidirectionalIterator __f, _BidirectionalIterator __l, | 
 |                 bool __no_update_pos = false); | 
 |  | 
 |     template <class, class> friend class basic_regex; | 
 |  | 
 |     template <class _B, class _A, class _C, class _T> | 
 |     friend | 
 |     bool | 
 |     regex_match(_B, _B, match_results<_B, _A>&, const basic_regex<_C, _T>&, | 
 |                 regex_constants::match_flag_type); | 
 |  | 
 |     template <class _B, class _A> | 
 |     friend | 
 |     bool | 
 |     operator==(const match_results<_B, _A>&, const match_results<_B, _A>&); | 
 |  | 
 |     template <class, class> friend class __lookahead; | 
 | }; | 
 |  | 
 | template <class _BidirectionalIterator, class _Allocator> | 
 | match_results<_BidirectionalIterator, _Allocator>::match_results( | 
 |         const allocator_type& __a) | 
 |     : __matches_(__a), | 
 |       __unmatched_(), | 
 |       __prefix_(), | 
 |       __suffix_(), | 
 |       __position_start_(), | 
 |       __ready_(false) | 
 | { | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _Allocator> | 
 | void | 
 | match_results<_BidirectionalIterator, _Allocator>::__init(unsigned __s, | 
 |                          _BidirectionalIterator __f, _BidirectionalIterator __l, | 
 |                          bool __no_update_pos) | 
 | { | 
 |     __unmatched_.first   = __l; | 
 |     __unmatched_.second  = __l; | 
 |     __unmatched_.matched = false; | 
 |     __matches_.assign(__s, __unmatched_); | 
 |     __prefix_.first      = __f; | 
 |     __prefix_.second     = __f; | 
 |     __prefix_.matched    = false; | 
 |     __suffix_ = __unmatched_; | 
 |     if (!__no_update_pos) | 
 |         __position_start_ = __prefix_.first; | 
 |     __ready_ = true; | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _Allocator> | 
 | template <class _OutputIter> | 
 | _OutputIter | 
 | match_results<_BidirectionalIterator, _Allocator>::format(_OutputIter __out, | 
 |         const char_type* __fmt_first, const char_type* __fmt_last, | 
 |         regex_constants::match_flag_type __flags) const | 
 | { | 
 |     if (__flags & regex_constants::format_sed) | 
 |     { | 
 |         for (; __fmt_first != __fmt_last; ++__fmt_first) | 
 |         { | 
 |             if (*__fmt_first == '&') | 
 |                 __out = _STD::copy(__matches_[0].first, __matches_[0].second, | 
 |                                    __out); | 
 |             else if (*__fmt_first == '\\' && __fmt_first + 1 != __fmt_last) | 
 |             { | 
 |                 ++__fmt_first; | 
 |                 if ('0' <= *__fmt_first && *__fmt_first <= '9') | 
 |                 { | 
 |                     size_t __i = *__fmt_first - '0'; | 
 |                     __out = _STD::copy(__matches_[__i].first, | 
 |                                        __matches_[__i].second, __out); | 
 |                 } | 
 |                 else | 
 |                 { | 
 |                     *__out = *__fmt_first; | 
 |                     ++__out; | 
 |                 } | 
 |             } | 
 |             else | 
 |             { | 
 |                 *__out = *__fmt_first; | 
 |                 ++__out; | 
 |             } | 
 |         } | 
 |     } | 
 |     else | 
 |     { | 
 |         for (; __fmt_first != __fmt_last; ++__fmt_first) | 
 |         { | 
 |             if (*__fmt_first == '$' && __fmt_first + 1 != __fmt_last) | 
 |             { | 
 |                 switch (__fmt_first[1]) | 
 |                 { | 
 |                 case '$': | 
 |                     *__out = *++__fmt_first; | 
 |                     ++__out; | 
 |                     break; | 
 |                 case '&': | 
 |                     ++__fmt_first; | 
 |                     __out = _STD::copy(__matches_[0].first, __matches_[0].second, | 
 |                                        __out); | 
 |                     break; | 
 |                 case '`': | 
 |                     ++__fmt_first; | 
 |                     __out = _STD::copy(__prefix_.first, __prefix_.second, __out); | 
 |                     break; | 
 |                 case '\'': | 
 |                     ++__fmt_first; | 
 |                     __out = _STD::copy(__suffix_.first, __suffix_.second, __out); | 
 |                     break; | 
 |                 default: | 
 |                     if ('0' <= __fmt_first[1] && __fmt_first[1] <= '9') | 
 |                     { | 
 |                         ++__fmt_first; | 
 |                         size_t __i = *__fmt_first - '0'; | 
 |                         if (__fmt_first + 1 != __fmt_last && | 
 |                             '0' <= __fmt_first[1] && __fmt_first[1] <= '9') | 
 |                         { | 
 |                             ++__fmt_first; | 
 |                             __i = 10 * __i + *__fmt_first - '0'; | 
 |                         } | 
 |                         __out = _STD::copy(__matches_[__i].first, | 
 |                                            __matches_[__i].second, __out); | 
 |                     } | 
 |                     else | 
 |                     { | 
 |                         *__out = *__fmt_first; | 
 |                         ++__out; | 
 |                     } | 
 |                     break; | 
 |                 } | 
 |             } | 
 |             else | 
 |             { | 
 |                 *__out = *__fmt_first; | 
 |                 ++__out; | 
 |             } | 
 |         } | 
 |     } | 
 |     return __out; | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _Allocator> | 
 | void | 
 | match_results<_BidirectionalIterator, _Allocator>::swap(match_results& __m) | 
 | { | 
 |     using _STD::swap; | 
 |     swap(__matches_, __m.__matches_); | 
 |     swap(__unmatched_, __m.__unmatched_); | 
 |     swap(__prefix_, __m.__prefix_); | 
 |     swap(__suffix_, __m.__suffix_); | 
 |     swap(__position_start_, __m.__position_start_); | 
 |     swap(__ready_, __m.__ready_); | 
 | } | 
 |  | 
 | typedef match_results<const char*>             cmatch; | 
 | typedef match_results<const wchar_t*>          wcmatch; | 
 | typedef match_results<string::const_iterator>  smatch; | 
 | typedef match_results<wstring::const_iterator> wsmatch; | 
 |  | 
 | template <class _BidirectionalIterator, class _Allocator> | 
 | bool | 
 | operator==(const match_results<_BidirectionalIterator, _Allocator>& __x, | 
 |            const match_results<_BidirectionalIterator, _Allocator>& __y) | 
 | { | 
 |     if (__x.__ready_ != __y.__ready_) | 
 |         return false; | 
 |     if (!__x.__ready_) | 
 |         return true; | 
 |     return __x.__matches_ == __y.__matches_ && | 
 |            __x.__prefix_ == __y.__prefix_ && | 
 |            __x.__suffix_ == __y.__suffix_; | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator!=(const match_results<_BidirectionalIterator, _Allocator>& __x, | 
 |            const match_results<_BidirectionalIterator, _Allocator>& __y) | 
 | { | 
 |     return !(__x == __y); | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | void | 
 | swap(match_results<_BidirectionalIterator, _Allocator>& __x, | 
 |      match_results<_BidirectionalIterator, _Allocator>& __y) | 
 | { | 
 |     __x.swap(__y); | 
 | } | 
 |  | 
 | // regex_search | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _Allocator> | 
 | bool | 
 | basic_regex<_CharT, _Traits>::__match_at_start_ecma( | 
 |         const _CharT* __first, const _CharT* __last, | 
 |         match_results<const _CharT*, _Allocator>& __m, | 
 |         regex_constants::match_flag_type __flags) const | 
 | { | 
 |     vector<__state> __states; | 
 |     ptrdiff_t __j = 0; | 
 |     ptrdiff_t _N = _STD::distance(__first, __last); | 
 |     __node* __st = __start_.get(); | 
 |     if (__st) | 
 |     { | 
 |         __states.push_back(__state()); | 
 |         __states.back().__do_ = 0; | 
 |         __states.back().__first_ = __first; | 
 |         __states.back().__current_ = __first; | 
 |         __states.back().__last_ = __last; | 
 |         __states.back().__sub_matches_.resize(mark_count()); | 
 |         __states.back().__loop_data_.resize(__loop_count()); | 
 |         __states.back().__node_ = __st; | 
 |         __states.back().__flags_ = __flags; | 
 |         bool __matched = false; | 
 |         do | 
 |         { | 
 |             __state& __s = __states.back(); | 
 |             if (__s.__node_) | 
 |                 __s.__node_->__exec(__s); | 
 |             switch (__s.__do_) | 
 |             { | 
 |             case __state::__end_state: | 
 |                 __m.__matches_[0].first = __first; | 
 |                 __m.__matches_[0].second = _STD::next(__first, __s.__current_ - __first); | 
 |                 __m.__matches_[0].matched = true; | 
 |                 for (unsigned __i = 0; __i < __s.__sub_matches_.size(); ++__i) | 
 |                     __m.__matches_[__i+1] = __s.__sub_matches_[__i]; | 
 |                 return true; | 
 |             case __state::__accept_and_consume: | 
 |             case __state::__repeat: | 
 |             case __state::__accept_but_not_consume: | 
 |                 break; | 
 |             case __state::__split: | 
 |                 { | 
 |                 __state __snext = __s; | 
 |                 __s.__node_->__exec_split(true, __s); | 
 |                 __snext.__node_->__exec_split(false, __snext); | 
 |                 __states.push_back(_STD::move(__snext)); | 
 |                 } | 
 |                 break; | 
 |             case __state::__reject: | 
 |                 __states.pop_back(); | 
 |                 break; | 
 |             default: | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                 throw regex_error(regex_constants::__re_err_unknown); | 
 | #endif | 
 |                 break; | 
 |  | 
 |             } | 
 |         } while (!__states.empty()); | 
 |     } | 
 |     return false; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _Allocator> | 
 | bool | 
 | basic_regex<_CharT, _Traits>::__match_at_start_posix_nosubs( | 
 |         const _CharT* __first, const _CharT* __last, | 
 |         match_results<const _CharT*, _Allocator>& __m, | 
 |         regex_constants::match_flag_type __flags) const | 
 | { | 
 |     deque<__state> __states; | 
 |     ptrdiff_t __highest_j = 0; | 
 |     ptrdiff_t _N = _STD::distance(__first, __last); | 
 |     __node* __st = __start_.get(); | 
 |     if (__st) | 
 |     { | 
 |         __states.push_back(__state()); | 
 |         __states.back().__do_ = 0; | 
 |         __states.back().__first_ = __first; | 
 |         __states.back().__current_ = __first; | 
 |         __states.back().__last_ = __last; | 
 |         __states.back().__loop_data_.resize(__loop_count()); | 
 |         __states.back().__node_ = __st; | 
 |         __states.back().__flags_ = __flags; | 
 |         bool __matched = false; | 
 |         do | 
 |         { | 
 |             __state& __s = __states.back(); | 
 |             if (__s.__node_) | 
 |                 __s.__node_->__exec(__s); | 
 |             switch (__s.__do_) | 
 |             { | 
 |             case __state::__end_state: | 
 |                 if (!__matched || __highest_j < __s.__current_ - __s.__first_) | 
 |                     __highest_j = __s.__current_ - __s.__first_; | 
 |                 __matched = true; | 
 |                 if (__highest_j == _N) | 
 |                     __states.clear(); | 
 |                 else | 
 |                     __states.pop_back(); | 
 |                 break; | 
 |             case __state::__consume_input: | 
 |                 break; | 
 |             case __state::__accept_and_consume: | 
 |                 __states.push_front(_STD::move(__s)); | 
 |                 __states.pop_back(); | 
 |                 break; | 
 |             case __state::__repeat: | 
 |             case __state::__accept_but_not_consume: | 
 |                 break; | 
 |             case __state::__split: | 
 |                 { | 
 |                 __state __snext = __s; | 
 |                 __s.__node_->__exec_split(true, __s); | 
 |                 __snext.__node_->__exec_split(false, __snext); | 
 |                 __states.push_back(_STD::move(__snext)); | 
 |                 } | 
 |                 break; | 
 |             case __state::__reject: | 
 |                 __states.pop_back(); | 
 |                 break; | 
 |             default: | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                 throw regex_error(regex_constants::__re_err_unknown); | 
 | #endif | 
 |                 break; | 
 |             } | 
 |         } while (!__states.empty()); | 
 |         if (__matched) | 
 |         { | 
 |             __m.__matches_[0].first = __first; | 
 |             __m.__matches_[0].second = _STD::next(__first, __highest_j); | 
 |             __m.__matches_[0].matched = true; | 
 |             return true; | 
 |         } | 
 |     } | 
 |     return false; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _Allocator> | 
 | bool | 
 | basic_regex<_CharT, _Traits>::__match_at_start_posix_subs( | 
 |         const _CharT* __first, const _CharT* __last, | 
 |         match_results<const _CharT*, _Allocator>& __m, | 
 |         regex_constants::match_flag_type __flags) const | 
 | { | 
 |     vector<__state> __states; | 
 |     __state __best_state; | 
 |     ptrdiff_t __j = 0; | 
 |     ptrdiff_t __highest_j = 0; | 
 |     ptrdiff_t _N = _STD::distance(__first, __last); | 
 |     __node* __st = __start_.get(); | 
 |     if (__st) | 
 |     { | 
 |         __states.push_back(__state()); | 
 |         __states.back().__do_ = 0; | 
 |         __states.back().__first_ = __first; | 
 |         __states.back().__current_ = __first; | 
 |         __states.back().__last_ = __last; | 
 |         __states.back().__sub_matches_.resize(mark_count()); | 
 |         __states.back().__loop_data_.resize(__loop_count()); | 
 |         __states.back().__node_ = __st; | 
 |         __states.back().__flags_ = __flags; | 
 |         const _CharT* __current = __first; | 
 |         bool __matched = false; | 
 |         do | 
 |         { | 
 |             __state& __s = __states.back(); | 
 |             if (__s.__node_) | 
 |                 __s.__node_->__exec(__s); | 
 |             switch (__s.__do_) | 
 |             { | 
 |             case __state::__end_state: | 
 |                 if (!__matched || __highest_j < __s.__current_ - __s.__first_) | 
 |                 { | 
 |                     __highest_j = __s.__current_ - __s.__first_; | 
 |                     __best_state = __s; | 
 |                 } | 
 |                 __matched = true; | 
 |                 if (__highest_j == _N) | 
 |                     __states.clear(); | 
 |                 else | 
 |                     __states.pop_back(); | 
 |                 break; | 
 |             case __state::__accept_and_consume: | 
 |                 __j += __s.__current_ - __current; | 
 |                 __current = __s.__current_; | 
 |                 break; | 
 |             case __state::__repeat: | 
 |             case __state::__accept_but_not_consume: | 
 |                 break; | 
 |             case __state::__split: | 
 |                 { | 
 |                 __state __snext = __s; | 
 |                 __s.__node_->__exec_split(true, __s); | 
 |                 __snext.__node_->__exec_split(false, __snext); | 
 |                 __states.push_back(_STD::move(__snext)); | 
 |                 } | 
 |                 break; | 
 |             case __state::__reject: | 
 |                 __states.pop_back(); | 
 |                 break; | 
 |             default: | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |                 throw regex_error(regex_constants::__re_err_unknown); | 
 | #endif | 
 |                 break; | 
 |             } | 
 |         } while (!__states.empty()); | 
 |         if (__matched) | 
 |         { | 
 |             __m.__matches_[0].first = __first; | 
 |             __m.__matches_[0].second = _STD::next(__first, __highest_j); | 
 |             __m.__matches_[0].matched = true; | 
 |             for (unsigned __i = 0; __i < __best_state.__sub_matches_.size(); ++__i) | 
 |                 __m.__matches_[__i+1] = __best_state.__sub_matches_[__i]; | 
 |             return true; | 
 |         } | 
 |     } | 
 |     return false; | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _Allocator> | 
 | bool | 
 | basic_regex<_CharT, _Traits>::__match_at_start( | 
 |         const _CharT* __first, const _CharT* __last, | 
 |         match_results<const _CharT*, _Allocator>& __m, | 
 |         regex_constants::match_flag_type __flags) const | 
 | { | 
 |     if ((__flags_ & 0x1F0) == ECMAScript) | 
 |         return __match_at_start_ecma(__first, __last, __m, __flags); | 
 |     if (mark_count() == 0) | 
 |         return __match_at_start_posix_nosubs(__first, __last, __m, __flags); | 
 |     return __match_at_start_posix_subs(__first, __last, __m, __flags); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | template <class _Allocator> | 
 | bool | 
 | basic_regex<_CharT, _Traits>::__search( | 
 |         const _CharT* __first, const _CharT* __last, | 
 |         match_results<const _CharT*, _Allocator>& __m, | 
 |         regex_constants::match_flag_type __flags) const | 
 | { | 
 |     if (__left_anchor_) | 
 |         __flags |= regex_constants::match_continuous; | 
 |     __m.__init(1 + mark_count(), __first, __last, | 
 |                                     __flags & regex_constants::__no_update_pos); | 
 |     if (__match_at_start(__first, __last, __m, __flags)) | 
 |     { | 
 |         __m.__prefix_.second = __m[0].first; | 
 |         __m.__prefix_.matched = __m.__prefix_.first != __m.__prefix_.second; | 
 |         __m.__suffix_.first = __m[0].second; | 
 |         __m.__suffix_.matched = __m.__suffix_.first != __m.__suffix_.second; | 
 |         return true; | 
 |     } | 
 |     if (__first != __last && !(__flags & regex_constants::match_continuous)) | 
 |     { | 
 |         __flags |= regex_constants::match_prev_avail; | 
 |         for (++__first; __first != __last; ++__first) | 
 |         { | 
 |             __m.__matches_.assign(__m.size(), __m.__unmatched_); | 
 |             if (__match_at_start(__first, __last, __m, __flags)) | 
 |             { | 
 |                 __m.__prefix_.second = __m[0].first; | 
 |                 __m.__prefix_.matched = __m.__prefix_.first != __m.__prefix_.second; | 
 |                 __m.__suffix_.first = __m[0].second; | 
 |                 __m.__suffix_.matched = __m.__suffix_.first != __m.__suffix_.second; | 
 |                 return true; | 
 |             } | 
 |             __m.__matches_.assign(__m.size(), __m.__unmatched_); | 
 |         } | 
 |     } | 
 |     __m.__matches_.clear(); | 
 |     return false; | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _Allocator, class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_search(_BidirectionalIterator __first, _BidirectionalIterator __last, | 
 |              match_results<_BidirectionalIterator, _Allocator>& __m, | 
 |              const basic_regex<_CharT, _Traits>& __e, | 
 |              regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     basic_string<_CharT> __s(__first, __last); | 
 |     match_results<const _CharT*> __mc; | 
 |     bool __r = __e.__search(__s.data(), __s.data() + __s.size(), __mc, __flags); | 
 |     __m.__assign(__first, __last, __mc, __flags & regex_constants::__no_update_pos); | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Allocator, class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_search(const _CharT* __first, const _CharT* __last, | 
 |              match_results<const _CharT*, _Allocator>& __m, | 
 |              const basic_regex<_CharT, _Traits>& __e, | 
 |              regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     return __e.__search(__first, __last, __m, __flags); | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_search(_BidirectionalIterator __first, _BidirectionalIterator __last, | 
 |              const basic_regex<_CharT, _Traits>& __e, | 
 |              regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     basic_string<_CharT> __s(__first, __last); | 
 |     match_results<const _CharT*> __mc; | 
 |     return __e.__search(__s.data(), __s.data() + __s.size(), __mc, __flags); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_search(const _CharT* __first, const _CharT* __last, | 
 |              const basic_regex<_CharT, _Traits>& __e, | 
 |              regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     match_results<const _CharT*> __mc; | 
 |     return __e.__search(__first, __last, __mc, __flags); | 
 | } | 
 |  | 
 | template <class _CharT, class _Allocator, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_search(const _CharT* __str, match_results<const _CharT*, _Allocator>& __m, | 
 |              const basic_regex<_CharT, _Traits>& __e, | 
 |              regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     return __e.__search(__str, __str + _Traits::length(__str), __m, __flags); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_search(const _CharT* __str, const basic_regex<_CharT, _Traits>& __e, | 
 |              regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     match_results<const _CharT*> __m; | 
 |     return _STD::regex_search(__str, __m, __e, __flags); | 
 | } | 
 |  | 
 | template <class _ST, class _SA, class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_search(const basic_string<_CharT, _ST, _SA>& __s, | 
 |              const basic_regex<_CharT, _Traits>& __e, | 
 |              regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     match_results<const _CharT*> __mc; | 
 |     return __e.__search(__s.data(), __s.data() + __s.size(), __mc, __flags); | 
 | } | 
 |  | 
 | template <class _ST, class _SA, class _Allocator, class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_search(const basic_string<_CharT, _ST, _SA>& __s, | 
 |              match_results<typename basic_string<_CharT, _ST, _SA>::const_iterator, _Allocator>& __m, | 
 |              const basic_regex<_CharT, _Traits>& __e, | 
 |              regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     match_results<const _CharT*> __mc; | 
 |     bool __r = __e.__search(__s.data(), __s.data() + __s.size(), __mc, __flags); | 
 |     __m.__assign(__s.begin(), __s.end(), __mc, __flags & regex_constants::__no_update_pos); | 
 |     return __r; | 
 | } | 
 |  | 
 | // regex_match | 
 |  | 
 | template <class _BidirectionalIterator, class _Allocator, class _CharT, class _Traits> | 
 | bool | 
 | regex_match(_BidirectionalIterator __first, _BidirectionalIterator __last, | 
 |             match_results<_BidirectionalIterator, _Allocator>& __m, | 
 |             const basic_regex<_CharT, _Traits>& __e, | 
 |             regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     bool __r = _STD::regex_search(__first, __last, __m, __e, | 
 |                             __flags | regex_constants::match_continuous); | 
 |     if (__r) | 
 |     { | 
 |         __r = !__m.suffix().matched; | 
 |         if (!__r) | 
 |             __m.__matches_.clear(); | 
 |     } | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_match(_BidirectionalIterator __first, _BidirectionalIterator __last, | 
 |             const basic_regex<_CharT, _Traits>& __e, | 
 |             regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     match_results<_BidirectionalIterator> __m; | 
 |     return _STD::regex_match(__first, __last, __m, __e, __flags); | 
 | } | 
 |  | 
 | template <class _CharT, class _Allocator, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_match(const _CharT* __str, match_results<const _CharT*, _Allocator>& __m, | 
 |             const basic_regex<_CharT, _Traits>& __e, | 
 |             regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     return _STD::regex_match(__str, __str + _Traits::length(__str), __m, __e, __flags); | 
 | } | 
 |  | 
 | template <class _ST, class _SA, class _Allocator, class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_match(const basic_string<_CharT, _ST, _SA>& __s, | 
 |             match_results<typename basic_string<_CharT, _ST, _SA>::const_iterator, _Allocator>& __m, | 
 |             const basic_regex<_CharT, _Traits>& __e, | 
 |             regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     return _STD::regex_match(__s.begin(), __s.end(), __m, __e, __flags); | 
 | } | 
 |  | 
 | template <class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_match(const _CharT* __str, const basic_regex<_CharT, _Traits>& __e, | 
 |             regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     return _STD::regex_match(__str, __str + _Traits::length(__str), __e, __flags); | 
 | } | 
 |  | 
 | template <class _ST, class _SA, class _CharT, class _Traits> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | regex_match(const basic_string<_CharT, _ST, _SA>& __s, | 
 |             const basic_regex<_CharT, _Traits>& __e, | 
 |             regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     return _STD::regex_match(__s.begin(), __s.end(), __e, __flags); | 
 | } | 
 |  | 
 | // regex_iterator | 
 |  | 
 | template <class _BidirectionalIterator, | 
 |           class _CharT = typename iterator_traits<_BidirectionalIterator>::value_type, | 
 |           class _Traits = regex_traits<_CharT> > | 
 | class _LIBCPP_VISIBLE regex_iterator | 
 | { | 
 | public: | 
 |     typedef basic_regex<_CharT, _Traits>          regex_type; | 
 |     typedef match_results<_BidirectionalIterator> value_type; | 
 |     typedef ptrdiff_t                             difference_type; | 
 |     typedef const value_type*                     pointer; | 
 |     typedef const value_type&                     reference; | 
 |     typedef forward_iterator_tag                  iterator_category; | 
 |  | 
 | private: | 
 |     _BidirectionalIterator           __begin_; | 
 |     _BidirectionalIterator           __end_; | 
 |     const regex_type*                __pregex_; | 
 |     regex_constants::match_flag_type __flags_; | 
 |     value_type                       __match_; | 
 |  | 
 | public: | 
 |     regex_iterator(); | 
 |     regex_iterator(_BidirectionalIterator __a, _BidirectionalIterator __b, | 
 |                    const regex_type& __re, | 
 |                    regex_constants::match_flag_type __m = regex_constants::match_default); | 
 |  | 
 |     bool operator==(const regex_iterator& __x) const; | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     bool operator!=(const regex_iterator& __x) const {return !(*this == __x);} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     reference operator*() const {return  __match_;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     pointer operator->() const  {return &__match_;} | 
 |  | 
 |     regex_iterator& operator++(); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     regex_iterator operator++(int) | 
 |     { | 
 |         regex_iterator __t(*this); | 
 |         ++(*this); | 
 |         return __t; | 
 |     } | 
 | }; | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | regex_iterator<_BidirectionalIterator, _CharT, _Traits>::regex_iterator() | 
 |     : __begin_(), __end_(), __pregex_(nullptr), __flags_(), __match_() | 
 | { | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | regex_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     regex_iterator(_BidirectionalIterator __a, _BidirectionalIterator __b, | 
 |                    const regex_type& __re, regex_constants::match_flag_type __m) | 
 |     : __begin_(__a), | 
 |       __end_(__b), | 
 |       __pregex_(&__re), | 
 |       __flags_(__m) | 
 | { | 
 |     _STD::regex_search(__begin_, __end_, __match_, *__pregex_, __flags_); | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | bool | 
 | regex_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     operator==(const regex_iterator& __x) const | 
 | { | 
 |     if (__match_.empty() && __x.__match_.empty()) | 
 |         return true; | 
 |     if (__match_.empty() || __x.__match_.empty()) | 
 |         return false; | 
 |     return __begin_ == __x.__begin_       && | 
 |            __end_ == __x.__end_           && | 
 |            __pregex_ == __x.__pregex_     && | 
 |            __flags_ == __x.__flags_       && | 
 |            __match_[0] == __x.__match_[0]; | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | regex_iterator<_BidirectionalIterator, _CharT, _Traits>& | 
 | regex_iterator<_BidirectionalIterator, _CharT, _Traits>::operator++() | 
 | { | 
 |     __flags_ |= regex_constants::__no_update_pos; | 
 |     _BidirectionalIterator __start = __match_[0].second; | 
 |     if (__match_.length() == 0) | 
 |     { | 
 |         if (__start == __end_) | 
 |         { | 
 |             __match_ = value_type(); | 
 |             return *this; | 
 |         } | 
 |         else if (_STD::regex_search(__start, __end_, __match_, *__pregex_, | 
 |                                     __flags_ | regex_constants::match_not_null | | 
 |                                     regex_constants::match_continuous)) | 
 |             return *this; | 
 |         else | 
 |             ++__start; | 
 |     } | 
 |     __flags_ |= regex_constants::match_prev_avail; | 
 |     if (!_STD::regex_search(__start, __end_, __match_, *__pregex_, __flags_)) | 
 |         __match_ = value_type(); | 
 |     return *this; | 
 | } | 
 |  | 
 | typedef regex_iterator<const char*>             cregex_iterator; | 
 | typedef regex_iterator<const wchar_t*>          wcregex_iterator; | 
 | typedef regex_iterator<string::const_iterator>  sregex_iterator; | 
 | typedef regex_iterator<wstring::const_iterator> wsregex_iterator; | 
 |  | 
 | // regex_token_iterator | 
 |  | 
 | template <class _BidirectionalIterator, | 
 |           class _CharT = typename iterator_traits<_BidirectionalIterator>::value_type, | 
 |           class _Traits = regex_traits<_CharT> > | 
 | class _LIBCPP_VISIBLE regex_token_iterator | 
 | { | 
 | public: | 
 |     typedef basic_regex<_CharT, _Traits>      regex_type; | 
 |     typedef sub_match<_BidirectionalIterator> value_type; | 
 |     typedef ptrdiff_t                         difference_type; | 
 |     typedef const value_type*                 pointer; | 
 |     typedef const value_type&                 reference; | 
 |     typedef forward_iterator_tag              iterator_category; | 
 |  | 
 | private: | 
 |     typedef regex_iterator<_BidirectionalIterator, _CharT, _Traits> _Position; | 
 |  | 
 |     _Position         __position_; | 
 |     const value_type* __result_; | 
 |     value_type        __suffix_; | 
 |     ptrdiff_t         _N_; | 
 |     vector<int>       __subs_; | 
 |  | 
 | public: | 
 |     regex_token_iterator(); | 
 |     regex_token_iterator(_BidirectionalIterator __a, _BidirectionalIterator __b, | 
 |                          const regex_type& __re, int __submatch = 0, | 
 |                          regex_constants::match_flag_type __m = | 
 |                                                 regex_constants::match_default); | 
 |     regex_token_iterator(_BidirectionalIterator __a, _BidirectionalIterator __b, | 
 |                          const regex_type& __re, const vector<int>& __submatches, | 
 |                          regex_constants::match_flag_type __m = | 
 |                                                 regex_constants::match_default); | 
 |     regex_token_iterator(_BidirectionalIterator __a, _BidirectionalIterator __b, | 
 |                          const regex_type& __re, | 
 |                          initializer_list<int> __submatches, | 
 |                          regex_constants::match_flag_type __m = | 
 |                                                 regex_constants::match_default); | 
 |     template <size_t _N> | 
 |         regex_token_iterator(_BidirectionalIterator __a, | 
 |                              _BidirectionalIterator __b, | 
 |                              const regex_type& __re, | 
 |                              const int (&__submatches)[_N], | 
 |                              regex_constants::match_flag_type __m = | 
 |                                                 regex_constants::match_default); | 
 |     regex_token_iterator(const regex_token_iterator&); | 
 |     regex_token_iterator& operator=(const regex_token_iterator&); | 
 |  | 
 |     bool operator==(const regex_token_iterator& __x) const; | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     bool operator!=(const regex_token_iterator& __x) const {return !(*this == __x);} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const value_type& operator*() const {return *__result_;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const value_type* operator->() const {return __result_;} | 
 |  | 
 |     regex_token_iterator& operator++(); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     regex_token_iterator operator++(int) | 
 |     { | 
 |         regex_token_iterator __t(*this); | 
 |         ++(*this); | 
 |         return __t; | 
 |     } | 
 |  | 
 | private: | 
 |     void __init(_BidirectionalIterator __a, _BidirectionalIterator __b); | 
 | }; | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     regex_token_iterator() | 
 |     : __result_(nullptr), | 
 |       __suffix_(), | 
 |       _N_(0) | 
 | { | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | void | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     __init(_BidirectionalIterator __a, _BidirectionalIterator __b) | 
 | { | 
 |     if (__position_ != _Position()) | 
 |     { | 
 |         if (__subs_[_N_] == -1) | 
 |             __result_ = &__position_->prefix(); | 
 |         else | 
 |             __result_ = &(*__position_)[__subs_[_N_]]; | 
 |     } | 
 |     else if (__subs_[_N_] == -1) | 
 |     { | 
 |         __suffix_.matched = true; | 
 |         __suffix_.first = __a; | 
 |         __suffix_.second = __b; | 
 |         __result_ = &__suffix_; | 
 |     } | 
 |     else | 
 |         __result_ = nullptr; | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     regex_token_iterator(_BidirectionalIterator __a, _BidirectionalIterator __b, | 
 |                          const regex_type& __re, int __submatch, | 
 |                          regex_constants::match_flag_type __m) | 
 |     : __position_(__a, __b, __re, __m), | 
 |       _N_(0), | 
 |       __subs_(1, __submatch) | 
 | { | 
 |     __init(__a, __b); | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     regex_token_iterator(_BidirectionalIterator __a, _BidirectionalIterator __b, | 
 |                          const regex_type& __re, const vector<int>& __submatches, | 
 |                          regex_constants::match_flag_type __m) | 
 |     : __position_(__a, __b, __re, __m), | 
 |       _N_(0), | 
 |       __subs_(__submatches) | 
 | { | 
 |     __init(__a, __b); | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     regex_token_iterator(_BidirectionalIterator __a, _BidirectionalIterator __b, | 
 |                          const regex_type& __re, | 
 |                          initializer_list<int> __submatches, | 
 |                          regex_constants::match_flag_type __m) | 
 |     : __position_(__a, __b, __re, __m), | 
 |       _N_(0), | 
 |       __subs_(__submatches) | 
 | { | 
 |     __init(__a, __b); | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | template <size_t _N> | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     regex_token_iterator(_BidirectionalIterator __a, _BidirectionalIterator __b, | 
 |                              const regex_type& __re, | 
 |                              const int (&__submatches)[_N], | 
 |                              regex_constants::match_flag_type __m) | 
 |     : __position_(__a, __b, __re, __m), | 
 |       _N_(0), | 
 |       __subs_(__submatches, __submatches + _N) | 
 | { | 
 |     __init(__a, __b); | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     regex_token_iterator(const regex_token_iterator& __x) | 
 |     : __position_(__x.__position_), | 
 |       __result_(__x.__result_), | 
 |       __suffix_(__x.__suffix_), | 
 |       _N_(__x._N_), | 
 |       __subs_(__x.__subs_) | 
 | { | 
 |     if (__x.__result_ == &__x.__suffix_) | 
 |         __result_ == &__suffix_; | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>& | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     operator=(const regex_token_iterator& __x) | 
 | { | 
 |     if (this != &__x) | 
 |     { | 
 |         __position_ = __x.__position_; | 
 |         if (__x.__result_ == &__x.__suffix_) | 
 |             __result_ == &__suffix_; | 
 |         else | 
 |             __result_ = __x.__result_; | 
 |         __suffix_ = __x.__suffix_; | 
 |         _N_ = __x._N_; | 
 |         __subs_ = __x.__subs_; | 
 |     } | 
 |     return *this; | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | bool | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>:: | 
 |     operator==(const regex_token_iterator& __x) const | 
 | { | 
 |     if (__result_ == nullptr && __x.__result_ == nullptr) | 
 |         return true; | 
 |     if (__result_ == &__suffix_ && __x.__result_ == &__x.__suffix_ && | 
 |             __suffix_ == __x.__suffix_) | 
 |         return true; | 
 |     if (__result_ == nullptr || __x.__result_ == nullptr) | 
 |         return false; | 
 |     if (__result_ == &__suffix_ || __x.__result_ == &__x.__suffix_) | 
 |         return false; | 
 |     return __position_ == __x.__position_ && _N_ == __x._N_ && | 
 |            __subs_ == __x.__subs_; | 
 | } | 
 |  | 
 | template <class _BidirectionalIterator, class _CharT, class _Traits> | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>& | 
 | regex_token_iterator<_BidirectionalIterator, _CharT, _Traits>::operator++() | 
 | { | 
 |     _Position __prev = __position_; | 
 |     if (__result_ == &__suffix_) | 
 |         __result_ = nullptr; | 
 |     else if (_N_ + 1 < __subs_.size()) | 
 |     { | 
 |         ++_N_; | 
 |         if (__subs_[_N_] == -1) | 
 |             __result_ = &__position_->prefix(); | 
 |         else | 
 |             __result_ = &(*__position_)[__subs_[_N_]]; | 
 |     } | 
 |     else | 
 |     { | 
 |         _N_ = 0; | 
 |         ++__position_; | 
 |         if (__position_ != _Position()) | 
 |         { | 
 |             if (__subs_[_N_] == -1) | 
 |                 __result_ = &__position_->prefix(); | 
 |             else | 
 |                 __result_ = &(*__position_)[__subs_[_N_]]; | 
 |         } | 
 |         else | 
 |         { | 
 |             if (_STD::find(__subs_.begin(), __subs_.end(), -1) != __subs_.end() | 
 |                 && __prev->suffix().length() != 0) | 
 |             { | 
 |                 __suffix_.matched = true; | 
 |                 __suffix_.first = __prev->suffix().first; | 
 |                 __suffix_.second = __prev->suffix().second; | 
 |                 __result_ = &__suffix_; | 
 |             } | 
 |             else | 
 |                 __result_ = nullptr; | 
 |         } | 
 |     } | 
 |     return *this; | 
 | } | 
 |  | 
 | typedef regex_token_iterator<const char*>             cregex_token_iterator; | 
 | typedef regex_token_iterator<const wchar_t*>          wcregex_token_iterator; | 
 | typedef regex_token_iterator<string::const_iterator>  sregex_token_iterator; | 
 | typedef regex_token_iterator<wstring::const_iterator> wsregex_token_iterator; | 
 |  | 
 | // regex_replace | 
 |  | 
 | template <class _OutputIterator, class _BidirectionalIterator, | 
 |           class _Traits, class _CharT> | 
 | _OutputIterator | 
 | regex_replace(_OutputIterator __out, | 
 |               _BidirectionalIterator __first, _BidirectionalIterator __last, | 
 |               const basic_regex<_CharT, _Traits>& __e, const _CharT* __fmt, | 
 |               regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     typedef regex_iterator<_BidirectionalIterator, _CharT, _Traits> _Iter; | 
 |     _Iter __i(__first, __last, __e, __flags); | 
 |     _Iter __eof; | 
 |     if (__i == __eof) | 
 |     { | 
 |         if (!(__flags & regex_constants::format_no_copy)) | 
 |             __out = _STD::copy(__first, __last, __out); | 
 |     } | 
 |     else | 
 |     { | 
 |         sub_match<_BidirectionalIterator> __lm; | 
 |         for (size_t __len = char_traits<_CharT>::length(__fmt); __i != __eof; ++__i) | 
 |         { | 
 |             if (!(__flags & regex_constants::format_no_copy)) | 
 |                 __out = _STD::copy(__i->prefix().first, __i->prefix().second, __out); | 
 |             __out = __i->format(__out, __fmt, __fmt + __len, __flags); | 
 |             __lm = __i->suffix(); | 
 |             if (__flags & regex_constants::format_first_only) | 
 |                 break; | 
 |         } | 
 |         if (!(__flags & regex_constants::format_no_copy)) | 
 |             __out = _STD::copy(__lm.first, __lm.second, __out); | 
 |     } | 
 |     return __out; | 
 | } | 
 |  | 
 | template <class _OutputIterator, class _BidirectionalIterator, | 
 |           class _Traits, class _CharT, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | _OutputIterator | 
 | regex_replace(_OutputIterator __out, | 
 |               _BidirectionalIterator __first, _BidirectionalIterator __last, | 
 |               const basic_regex<_CharT, _Traits>& __e, | 
 |               const basic_string<_CharT, _ST, _SA>& __fmt, | 
 |               regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     return _STD::regex_replace(__out, __first, __last, __e, __fmt.c_str(), __flags); | 
 | } | 
 |  | 
 | template <class _Traits, class _CharT, class _ST, class _SA, class _FST, | 
 |           class _FSA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | basic_string<_CharT, _ST, _SA> | 
 | regex_replace(const basic_string<_CharT, _ST, _SA>& __s, | 
 |               const basic_regex<_CharT, _Traits>& __e, | 
 |               const basic_string<_CharT, _FST, _FSA>& __fmt, | 
 |               regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     basic_string<_CharT, _ST, _SA> __r; | 
 |     _STD::regex_replace(back_inserter(__r), __s.begin(), __s.end(), __e, | 
 |                         __fmt.c_str(), __flags); | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Traits, class _CharT, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | basic_string<_CharT, _ST, _SA> | 
 | regex_replace(const basic_string<_CharT, _ST, _SA>& __s, | 
 |               const basic_regex<_CharT, _Traits>& __e, const _CharT* __fmt, | 
 |               regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     basic_string<_CharT, _ST, _SA> __r; | 
 |     _STD::regex_replace(back_inserter(__r), __s.begin(), __s.end(), __e, | 
 |                         __fmt, __flags); | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Traits, class _CharT, class _ST, class _SA> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | basic_string<_CharT> | 
 | regex_replace(const _CharT* __s, | 
 |               const basic_regex<_CharT, _Traits>& __e, | 
 |               const basic_string<_CharT, _ST, _SA>& __fmt, | 
 |               regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     basic_string<_CharT> __r; | 
 |     _STD::regex_replace(back_inserter(__r), __s, | 
 |                         __s + char_traits<_CharT>::length(__s), __e, | 
 |                         __fmt.c_str(), __flags); | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Traits, class _CharT> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | basic_string<_CharT> | 
 | regex_replace(const _CharT* __s, | 
 |               const basic_regex<_CharT, _Traits>& __e, | 
 |               const _CharT* __fmt, | 
 |               regex_constants::match_flag_type __flags = regex_constants::match_default) | 
 | { | 
 |     basic_string<_CharT> __r; | 
 |     _STD::regex_replace(back_inserter(__r), __s, | 
 |                         __s + char_traits<_CharT>::length(__s), __e, | 
 |                         __fmt, __flags); | 
 |     return __r; | 
 | } | 
 |  | 
 | _LIBCPP_END_NAMESPACE_STD | 
 |  | 
 | #endif  // _LIBCPP_REGEX |