// -*- C++ -*- //===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #ifndef _LIBCPP_REGEX #define _LIBCPP_REGEX /* regex synopsis #include #include namespace std { namespace regex_constants { enum syntax_option_type { icase = unspecified, nosubs = unspecified, optimize = unspecified, collate = unspecified, ECMAScript = unspecified, basic = unspecified, extended = unspecified, awk = unspecified, grep = unspecified, egrep = unspecified, multiline = 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 struct regex_traits { public: typedef charT char_type; typedef basic_string 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 string_type transform(ForwardIterator first, ForwardIterator last) const; template string_type transform_primary( ForwardIterator first, ForwardIterator last) const; template string_type lookup_collatename(ForwardIterator first, ForwardIterator last) const; template 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 basic_regex { public: // types: typedef charT value_type; typedef traits traits_type; typedef typename traits::string_type string_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; static constexpr regex_constants::syntax_option_type multiline = regex_constants::multiline; // 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 = regex_constants::ECMAScript); basic_regex(const basic_regex&); basic_regex(basic_regex&&) noexcept; template explicit basic_regex(const basic_string& p, flag_type f = regex_constants::ECMAScript); template basic_regex(ForwardIterator first, ForwardIterator last, flag_type f = regex_constants::ECMAScript); basic_regex(initializer_list, flag_type = regex_constants::ECMAScript); ~basic_regex(); basic_regex& operator=(const basic_regex&); basic_regex& operator=(basic_regex&&) noexcept; basic_regex& operator=(const charT* ptr); basic_regex& operator=(initializer_list il); template basic_regex& operator=(const basic_string& p); // assign: basic_regex& assign(const basic_regex& that); basic_regex& assign(basic_regex&& that) noexcept; basic_regex& assign(const charT* ptr, flag_type f = regex_constants::ECMAScript); basic_regex& assign(const charT* p, size_t len, flag_type f = regex_constants::ECMAScript); template basic_regex& assign(const basic_string& s, flag_type f = regex_constants::ECMAScript); template basic_regex& assign(InputIterator first, InputIterator last, flag_type f = regex_constants::ECMAScript); basic_regex& assign(initializer_list, flag_type f = 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&); }; template basic_regex(ForwardIterator, ForwardIterator, regex_constants::syntax_option_type = regex_constants::ECMAScript) -> basic_regex::value_type>; // C++17 typedef basic_regex regex; typedef basic_regex wregex; template void swap(basic_regex& e1, basic_regex& e2); template class sub_match : public pair { public: typedef typename iterator_traits::value_type value_type; typedef typename iterator_traits::difference_type difference_type; typedef BidirectionalIterator iterator; typedef basic_string 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; void swap(sub_match& s) noexcept(see below); }; typedef sub_match csub_match; typedef sub_match wcsub_match; typedef sub_match ssub_match; typedef sub_match wssub_match; template bool operator==(const sub_match& lhs, const sub_match& rhs); template auto operator<=>(const sub_match& lhs, const sub_match& rhs); // Since C++20 template // Removed in C++20 bool operator!=(const sub_match& lhs, const sub_match& rhs); template // Removed in C++20 bool operator<(const sub_match& lhs, const sub_match& rhs); template // Removed in C++20 bool operator<=(const sub_match& lhs, const sub_match& rhs); template // Removed in C++20 bool operator>=(const sub_match& lhs, const sub_match& rhs); template // Removed in C++20 bool operator>(const sub_match& lhs, const sub_match& rhs); template // Removed in C++20 bool operator==(const basic_string::value_type, ST, SA>& lhs, const sub_match& rhs); template // Removed in C++20 bool operator!=(const basic_string::value_type, ST, SA>& lhs, const sub_match& rhs); template // Removed in C++20 bool operator<(const basic_string::value_type, ST, SA>& lhs, const sub_match& rhs); template // Removed in C++20 bool operator>(const basic_string::value_type, ST, SA>& lhs, const sub_match& rhs); template // Removed in C++20 bool operator>=(const basic_string::value_type, ST, SA>& lhs, const sub_match& rhs); template // Removed in C++20 bool operator<=(const basic_string::value_type, ST, SA>& lhs, const sub_match& rhs); template bool operator==(const sub_match& lhs, const basic_string::value_type, ST, SA>& rhs); template // Since C++20 auto operator<=>(const sub_match& lhs, const basic_string::value_type, ST, SA>& rhs); template // Removed in C++20 bool operator!=(const sub_match& lhs, const basic_string::value_type, ST, SA>& rhs); template // Removed in C++20 bool operator<(const sub_match& lhs, const basic_string::value_type, ST, SA>& rhs); template // Removed in C++20 bool operator>(const sub_match& lhs, const basic_string::value_type, ST, SA>& rhs); template // Removed in C++20 bool operator>=(const sub_match& lhs, const basic_string::value_type, ST, SA>& rhs); template // Removed in C++20 bool operator<=(const sub_match& lhs, const basic_string::value_type, ST, SA>& rhs); template // Removed in C++20 bool operator==(typename iterator_traits::value_type const* lhs, const sub_match& rhs); template // Removed in C++20 bool operator!=(typename iterator_traits::value_type const* lhs, const sub_match& rhs); template // Removed in C++20 bool operator<(typename iterator_traits::value_type const* lhs, const sub_match& rhs); template // Removed in C++20 bool operator>(typename iterator_traits::value_type const* lhs, const sub_match& rhs); template // Removed in C++20 bool operator>=(typename iterator_traits::value_type const* lhs, const sub_match& rhs); template // Removed in C++20 bool operator<=(typename iterator_traits::value_type const* lhs, const sub_match& rhs); template bool operator==(const sub_match& lhs, typename iterator_traits::value_type const* rhs); template // Since C++20 auto operator<=>(const sub_match& lhs, typename iterator_traits::value_type const* rhs); template // Removed in C++20 bool operator!=(const sub_match& lhs, typename iterator_traits::value_type const* rhs); template // Removed in C++20 bool operator<(const sub_match& lhs, typename iterator_traits::value_type const* rhs); template // Removed in C++20 bool operator>(const sub_match& lhs, typename iterator_traits::value_type const* rhs); template // Removed in C++20 bool operator>=(const sub_match& lhs, typename iterator_traits::value_type const* rhs); template // Removed in C++20 bool operator<=(const sub_match& lhs, typename iterator_traits::value_type const* rhs); template // Removed in C++20 bool operator==(typename iterator_traits::value_type const& lhs, const sub_match& rhs); template // Removed in C++20 bool operator!=(typename iterator_traits::value_type const& lhs, const sub_match& rhs); template // Removed in C++20 bool operator<(typename iterator_traits::value_type const& lhs, const sub_match& rhs); template // Removed in C++20 bool operator>(typename iterator_traits::value_type const& lhs, const sub_match& rhs); template // Removed in C++20 bool operator>=(typename iterator_traits::value_type const& lhs, const sub_match& rhs); template // Removed in C++20 bool operator<=(typename iterator_traits::value_type const& lhs, const sub_match& rhs); template bool operator==(const sub_match& lhs, typename iterator_traits::value_type const& rhs); template // Since C++20 auto operator<=>(const sub_match& lhs, typename iterator_traits::value_type const& rhs); template // Removed in C++20 bool operator!=(const sub_match& lhs, typename iterator_traits::value_type const& rhs); template // Removed in C++20 bool operator<(const sub_match& lhs, typename iterator_traits::value_type const& rhs); template // Removed in C++20 bool operator>(const sub_match& lhs, typename iterator_traits::value_type const& rhs); template // Removed in C++20 bool operator>=(const sub_match& lhs, typename iterator_traits::value_type const& rhs); template // Removed in C++20 bool operator<=(const sub_match& lhs, typename iterator_traits::value_type const& rhs); template basic_ostream& operator<<(basic_ostream& os, const sub_match& m); template >> class match_results { public: typedef sub_match value_type; typedef const value_type& const_reference; typedef value_type& reference; typedef /implementation-defined/ const_iterator; typedef const_iterator iterator; typedef typename iterator_traits::difference_type difference_type; typedef typename allocator_traits::size_type size_type; typedef Allocator allocator_type; typedef typename iterator_traits::value_type char_type; typedef basic_string string_type; // construct/copy/destroy: explicit match_results(const Allocator& a = Allocator()); // before C++20 match_results() : match_results(Allocator()) {} // C++20 explicit match_results(const Allocator& a); // C++20 match_results(const match_results& m); match_results(match_results&& m) noexcept; 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 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 OutputIter format(OutputIter out, const basic_string& fmt, regex_constants::match_flag_type flags = regex_constants::format_default) const; template basic_string format(const basic_string& 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 cmatch; typedef match_results wcmatch; typedef match_results smatch; typedef match_results wsmatch; template bool operator==(const match_results& m1, const match_results& m2); template // Removed in C++20 bool operator!=(const match_results& m1, const match_results& m2); template void swap(match_results& m1, match_results& m2); template bool regex_match(BidirectionalIterator first, BidirectionalIterator last, match_results& m, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_match(BidirectionalIterator first, BidirectionalIterator last, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_match(const charT* str, match_results& m, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_match(const basic_string& s, match_results::const_iterator, Allocator>& m, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_match(const basic_string&& s, match_results::const_iterator, Allocator>& m, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default) = delete; // C++14 template bool regex_match(const charT* str, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_match(const basic_string& s, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_search(BidirectionalIterator first, BidirectionalIterator last, match_results& m, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_search(BidirectionalIterator first, BidirectionalIterator last, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_search(const charT* str, match_results& m, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_search(const charT* str, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_search(const basic_string& s, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_search(const basic_string& s, match_results::const_iterator, Allocator>& m, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default); template bool regex_search(const basic_string&& s, match_results::const_iterator, Allocator>& m, const basic_regex& e, regex_constants::match_flag_type flags = regex_constants::match_default) = delete; // C++14 template OutputIterator regex_replace(OutputIterator out, BidirectionalIterator first, BidirectionalIterator last, const basic_regex& e, const basic_string& fmt, regex_constants::match_flag_type flags = regex_constants::match_default); template OutputIterator regex_replace(OutputIterator out, BidirectionalIterator first, BidirectionalIterator last, const basic_regex& e, const charT* fmt, regex_constants::match_flag_type flags = regex_constants::match_default); template basic_string regex_replace(const basic_string& s, const basic_regex& e, const basic_string& fmt, regex_constants::match_flag_type flags = regex_constants::match_default); template basic_string regex_replace(const basic_string& s, const basic_regex& e, const charT* fmt, regex_constants::match_flag_type flags = regex_constants::match_default); template basic_string regex_replace(const charT* s, const basic_regex& e, const basic_string& fmt, regex_constants::match_flag_type flags = regex_constants::match_default); template basic_string regex_replace(const charT* s, const basic_regex& e, const charT* fmt, regex_constants::match_flag_type flags = regex_constants::match_default); template ::value_type, class traits = regex_traits> class regex_iterator { public: typedef basic_regex regex_type; typedef match_results value_type; typedef ptrdiff_t difference_type; typedef const value_type* pointer; typedef const value_type& reference; typedef forward_iterator_tag iterator_category; typedef input_iterator_tag iterator_concept; // since C++20 regex_iterator(); regex_iterator(BidirectionalIterator a, BidirectionalIterator b, const regex_type& re, regex_constants::match_flag_type m = regex_constants::match_default); regex_iterator(BidirectionalIterator a, BidirectionalIterator b, const regex_type&& re, regex_constants::match_flag_type m = regex_constants::match_default) = delete; // C++14 regex_iterator(const regex_iterator&); regex_iterator& operator=(const regex_iterator&); bool operator==(const regex_iterator&) const; bool operator==(default_sentinel_t) const { return *this == regex_iterator(); } // since C++20 bool operator!=(const regex_iterator&) const; // Removed in C++20 const value_type& operator*() const; const value_type* operator->() const; regex_iterator& operator++(); regex_iterator operator++(int); }; typedef regex_iterator cregex_iterator; typedef regex_iterator wcregex_iterator; typedef regex_iterator sregex_iterator; typedef regex_iterator wsregex_iterator; template ::value_type, class traits = regex_traits> class regex_token_iterator { public: typedef basic_regex regex_type; typedef sub_match value_type; typedef ptrdiff_t difference_type; typedef const value_type* pointer; typedef const value_type& reference; typedef forward_iterator_tag iterator_category; typedef input_iterator_tag iterator_concept; // since C++20 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, int submatch = 0, regex_constants::match_flag_type m = regex_constants::match_default) = delete; // C++14 regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, const regex_type& re, const vector& submatches, regex_constants::match_flag_type m = regex_constants::match_default); regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, const regex_type&& re, const vector& submatches, regex_constants::match_flag_type m = regex_constants::match_default) = delete; // C++14 regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, const regex_type& re, initializer_list submatches, regex_constants::match_flag_type m = regex_constants::match_default); regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b, const regex_type&& re, initializer_list submatches, regex_constants::match_flag_type m = regex_constants::match_default) = delete; // C++14 template 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); template 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) = delete; // C++14 regex_token_iterator(const regex_token_iterator&); regex_token_iterator& operator=(const regex_token_iterator&); bool operator==(const regex_token_iterator&) const; bool operator==(default_sentinel_t) const { return *this == regex_token_iterator(); } // since C++20 bool operator!=(const regex_token_iterator&) const; // Removed in C++20 const value_type& operator*() const; const value_type* operator->() const; regex_token_iterator& operator++(); regex_token_iterator operator++(int); }; typedef regex_token_iterator cregex_token_iterator; typedef regex_token_iterator wcregex_token_iterator; typedef regex_token_iterator sregex_token_iterator; typedef regex_token_iterator wsregex_token_iterator; } // std */ #include <__algorithm/find.h> #include <__algorithm/search.h> #include <__assert> #include <__config> #include <__iterator/back_insert_iterator.h> #include <__iterator/default_sentinel.h> #include <__iterator/wrap_iter.h> #include <__locale> #include <__memory/shared_ptr.h> #include <__memory_resource/polymorphic_allocator.h> #include <__type_traits/is_swappable.h> #include <__utility/move.h> #include <__utility/pair.h> #include <__utility/swap.h> #include <__verbose_abort> #include #include #include #include #include // standard-mandated includes // [iterator.range] #include <__iterator/access.h> #include <__iterator/data.h> #include <__iterator/empty.h> #include <__iterator/reverse_access.h> #include <__iterator/size.h> // [re.syn] #include #include #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) # pragma GCC system_header #endif _LIBCPP_PUSH_MACROS #include <__undef_macros> #define _LIBCPP_REGEX_COMPLEXITY_FACTOR 4096 _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, #ifdef _LIBCPP_ABI_REGEX_CONSTANTS_NONZERO ECMAScript = 1 << 9, #else ECMAScript = 0, #endif basic = 1 << 4, extended = 1 << 5, awk = 1 << 6, grep = 1 << 7, egrep = 1 << 8, // 1 << 9 may be used by ECMAScript multiline = 1 << 10 }; _LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR syntax_option_type __get_grammar(syntax_option_type __g) { #ifdef _LIBCPP_ABI_REGEX_CONSTANTS_NONZERO return static_cast(__g & 0x3F0); #else return static_cast(__g & 0x1F0); #endif } inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR syntax_option_type operator~(syntax_option_type __x) { return syntax_option_type(~int(__x) & 0x1FF); } inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR syntax_option_type operator&(syntax_option_type __x, syntax_option_type __y) { return syntax_option_type(int(__x) & int(__y)); } inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR syntax_option_type operator|(syntax_option_type __x, syntax_option_type __y) { return syntax_option_type(int(__x) | int(__y)); } inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR syntax_option_type operator^(syntax_option_type __x, syntax_option_type __y) { return syntax_option_type(int(__x) ^ int(__y)); } inline _LIBCPP_HIDE_FROM_ABI syntax_option_type& operator&=(syntax_option_type& __x, syntax_option_type __y) { __x = __x & __y; return __x; } inline _LIBCPP_HIDE_FROM_ABI syntax_option_type& operator|=(syntax_option_type& __x, syntax_option_type __y) { __x = __x | __y; return __x; } inline _LIBCPP_HIDE_FROM_ABI 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, __full_match = 1 << 12 }; inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR match_flag_type operator~(match_flag_type __x) { return match_flag_type(~int(__x) & 0x0FFF); } inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR match_flag_type operator&(match_flag_type __x, match_flag_type __y) { return match_flag_type(int(__x) & int(__y)); } inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR match_flag_type operator|(match_flag_type __x, match_flag_type __y) { return match_flag_type(int(__x) | int(__y)); } inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR match_flag_type operator^(match_flag_type __x, match_flag_type __y) { return match_flag_type(int(__x) ^ int(__y)); } inline _LIBCPP_HIDE_FROM_ABI match_flag_type& operator&=(match_flag_type& __x, match_flag_type __y) { __x = __x & __y; return __x; } inline _LIBCPP_HIDE_FROM_ABI match_flag_type& operator|=(match_flag_type& __x, match_flag_type __y) { __x = __x | __y; return __x; } inline _LIBCPP_HIDE_FROM_ABI 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, __re_err_parse }; } // namespace regex_constants class _LIBCPP_EXPORTED_FROM_ABI regex_error : public runtime_error { regex_constants::error_type __code_; public: explicit regex_error(regex_constants::error_type __ecode); _LIBCPP_HIDE_FROM_ABI regex_error(const regex_error&) _NOEXCEPT = default; ~regex_error() _NOEXCEPT override; _LIBCPP_HIDE_FROM_ABI regex_constants::error_type code() const { return __code_; } }; template _LIBCPP_NORETURN inline _LIBCPP_HIDE_FROM_ABI void __throw_regex_error() { #ifndef _LIBCPP_HAS_NO_EXCEPTIONS throw regex_error(_Ev); #else _LIBCPP_VERBOSE_ABORT("regex_error was thrown in -fno-exceptions mode"); #endif } template struct _LIBCPP_TEMPLATE_VIS regex_traits { public: typedef _CharT char_type; typedef basic_string string_type; typedef locale locale_type; #if defined(__BIONIC__) || defined(_NEWLIB_VERSION) // Originally bionic's ctype_base used its own ctype masks because the // builtin ctype implementation wasn't in libc++ yet. Bionic's ctype mask // was only 8 bits wide and already saturated, so it used a wider type here // to make room for __regex_word (then a part of this class rather than // ctype_base). Bionic has since moved to the builtin ctype_base // implementation, but this was not updated to match. Since then Android has // needed to maintain a stable libc++ ABI, and this can't be changed without // an ABI break. // We also need this workaround for newlib since _NEWLIB_VERSION is not // defined yet inside __config, so we can't set the // _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE macro. Additionally, newlib is // often used for space constrained environments, so it makes sense not to // duplicate the ctype table. typedef uint16_t char_class_type; #else typedef ctype_base::mask char_class_type; #endif static const char_class_type __regex_word = ctype_base::__regex_word; private: locale __loc_; const ctype* __ct_; const collate* __col_; public: regex_traits(); _LIBCPP_HIDE_FROM_ABI static size_t length(const char_type* __p) { return char_traits::length(__p); } _LIBCPP_HIDE_FROM_ABI char_type translate(char_type __c) const { return __c; } char_type translate_nocase(char_type __c) const; template string_type transform(_ForwardIterator __f, _ForwardIterator __l) const; template _LIBCPP_HIDE_FROM_ABI string_type transform_primary(_ForwardIterator __f, _ForwardIterator __l) const { return __transform_primary(__f, __l, char_type()); } template _LIBCPP_HIDE_FROM_ABI string_type lookup_collatename(_ForwardIterator __f, _ForwardIterator __l) const { return __lookup_collatename(__f, __l, char_type()); } template _LIBCPP_HIDE_FROM_ABI 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_HIDE_FROM_ABI int value(char_type __ch, int __radix) const { return __regex_traits_value(__ch, __radix); } locale_type imbue(locale_type __l); _LIBCPP_HIDE_FROM_ABI locale_type getloc() const { return __loc_; } private: void __init(); template string_type __transform_primary(_ForwardIterator __f, _ForwardIterator __l, char) const; #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS template string_type __transform_primary(_ForwardIterator __f, _ForwardIterator __l, wchar_t) const; #endif template string_type __lookup_collatename(_ForwardIterator __f, _ForwardIterator __l, char) const; #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS template string_type __lookup_collatename(_ForwardIterator __f, _ForwardIterator __l, wchar_t) const; #endif template char_class_type __lookup_classname(_ForwardIterator __f, _ForwardIterator __l, bool __icase, char) const; #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS template char_class_type __lookup_classname(_ForwardIterator __f, _ForwardIterator __l, bool __icase, wchar_t) const; #endif static int __regex_traits_value(unsigned char __ch, int __radix); _LIBCPP_HIDE_FROM_ABI int __regex_traits_value(char __ch, int __radix) const { return __regex_traits_value(static_cast(__ch), __radix); } #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS _LIBCPP_HIDE_FROM_ABI int __regex_traits_value(wchar_t __ch, int __radix) const; #endif }; template const typename regex_traits<_CharT>::char_class_type regex_traits<_CharT>::__regex_word; template regex_traits<_CharT>::regex_traits() { __init(); } template typename regex_traits<_CharT>::char_type regex_traits<_CharT>::translate_nocase(char_type __c) const { return __ct_->tolower(__c); } template template 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 void regex_traits<_CharT>::__init() { __ct_ = &std::use_facet >(__loc_); __col_ = &std::use_facet >(__loc_); } template 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 template 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; } #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS template template 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; } #endif // lookup_collatename is very FreeBSD-specific _LIBCPP_EXPORTED_FROM_ABI string __get_collation_name(const char* __s); template template 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 = std::__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; } #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS template template 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(*__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; } #endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS // lookup_classname regex_traits::char_class_type _LIBCPP_EXPORTED_FROM_ABI __get_classname(const char* __s, bool __icase); template template 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 std::__get_classname(__s.c_str(), __icase); } #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS template template 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(*__i) >= 127) return char_class_type(); __n.push_back(char(*__i)); } return __get_classname(__n.c_str(), __icase); } #endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS template 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)); } inline _LIBCPP_HIDE_FROM_ABI bool __is_07(unsigned char __c) { return (__c & 0xF8u) == #if defined(__MVS__) && !defined(__NATIVE_ASCII_F) 0xF0; #else 0x30; #endif } inline _LIBCPP_HIDE_FROM_ABI bool __is_89(unsigned char __c) { return (__c & 0xFEu) == #if defined(__MVS__) && !defined(__NATIVE_ASCII_F) 0xF8; #else 0x38; #endif } inline _LIBCPP_HIDE_FROM_ABI unsigned char __to_lower(unsigned char __c) { #if defined(__MVS__) && !defined(__NATIVE_ASCII_F) return __c & 0xBF; #else return __c | 0x20; #endif } template int regex_traits<_CharT>::__regex_traits_value(unsigned char __ch, int __radix) { if (__is_07(__ch)) // '0' <= __ch && __ch <= '7' return __ch - '0'; if (__radix != 8) { if (__is_89(__ch)) // '8' <= __ch && __ch <= '9' return __ch - '0'; if (__radix == 16) { __ch = __to_lower(__ch); // tolower if ('a' <= __ch && __ch <= 'f') return __ch - ('a' - 10); } } return -1; } #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS template inline int regex_traits<_CharT>::__regex_traits_value(wchar_t __ch, int __radix) const { return __regex_traits_value(static_cast(__ct_->narrow(__ch, char_type())), __radix); } #endif template class __node; template class _LIBCPP_TEMPLATE_VIS sub_match; template > > class _LIBCPP_TEMPLATE_VIS match_results; template 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_matches_; vector > __loop_data_; const __node<_CharT>* __node_; regex_constants::match_flag_type __flags_; bool __at_first_; _LIBCPP_HIDE_FROM_ABI __state() : __do_(0), __first_(nullptr), __current_(nullptr), __last_(nullptr), __node_(nullptr), __flags_(), __at_first_(false) {} }; // __node template class __node { public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI __node() {} __node(const __node&) = delete; __node& operator=(const __node&) = delete; _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual ~__node() {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec_split(bool, __state&) const {} }; // __end_state template class __end_state : public __node<_CharT> { public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI __end_state() {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template void __end_state<_CharT>::__exec(__state& __s) const { __s.__do_ = __state::__end_state; } // __has_one_state template class __has_one_state : public __node<_CharT> { __node<_CharT>* __first_; public: _LIBCPP_HIDE_FROM_ABI explicit __has_one_state(__node<_CharT>* __s) : __first_(__s) {} _LIBCPP_HIDE_FROM_ABI __node<_CharT>* first() const { return __first_; } _LIBCPP_HIDE_FROM_ABI __node<_CharT>*& first() { return __first_; } }; // __owns_one_state template class __owns_one_state : public __has_one_state<_CharT> { typedef __has_one_state<_CharT> base; public: _LIBCPP_HIDE_FROM_ABI explicit __owns_one_state(__node<_CharT>* __s) : base(__s) {} ~__owns_one_state() override; }; template __owns_one_state<_CharT>::~__owns_one_state() { delete this->first(); } // __empty_state template class __empty_state : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI explicit __empty_state(__node<_CharT>* __s) : base(__s) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template 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 __empty_non_own_state : public __has_one_state<_CharT> { typedef __has_one_state<_CharT> base; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI explicit __empty_non_own_state(__node<_CharT>* __s) : base(__s) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template 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 __repeat_one_loop : public __has_one_state<_CharT> { typedef __has_one_state<_CharT> base; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI explicit __repeat_one_loop(__node<_CharT>* __s) : base(__s) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template void __repeat_one_loop<_CharT>::__exec(__state& __s) const { __s.__do_ = __state::__repeat; __s.__node_ = this->first(); } // __owns_two_states template class __owns_two_states : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; base* __second_; public: _LIBCPP_HIDE_FROM_ABI explicit __owns_two_states(__node<_CharT>* __s1, base* __s2) : base(__s1), __second_(__s2) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual ~__owns_two_states(); _LIBCPP_HIDE_FROM_ABI base* second() const { return __second_; } _LIBCPP_HIDE_FROM_ABI base*& second() { return __second_; } }; template __owns_two_states<_CharT>::~__owns_two_states() { delete __second_; } // __loop template 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_HIDE_FROM_ABI 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::max()) : base(__s1, __s2), __min_(__min), __max_(__max), __loop_id_(__loop_id), __mexp_begin_(__mexp_begin), __mexp_end_(__mexp_end), __greedy_(__greedy) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state& __s) const; _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec_split(bool __second, __state& __s) const; private: _LIBCPP_HIDE_FROM_ABI 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 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 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 __alternate : public __owns_two_states<_CharT> { typedef __owns_two_states<_CharT> base; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI explicit __alternate(__owns_one_state<_CharT>* __s1, __owns_one_state<_CharT>* __s2) : base(__s1, __s2) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state& __s) const; _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec_split(bool __second, __state& __s) const; }; template void __alternate<_CharT>::__exec(__state& __s) const { __s.__do_ = __state::__split; } template 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 __begin_marked_subexpression : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; unsigned __mexp_; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI explicit __begin_marked_subexpression(unsigned __mexp, __node<_CharT>* __s) : base(__s), __mexp_(__mexp) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template 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 __end_marked_subexpression : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; unsigned __mexp_; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI explicit __end_marked_subexpression(unsigned __mexp, __node<_CharT>* __s) : base(__s), __mexp_(__mexp) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template 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 __back_ref : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; unsigned __mexp_; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI explicit __back_ref(unsigned __mexp, __node<_CharT>* __s) : base(__s), __mexp_(__mexp) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template void __back_ref<_CharT>::__exec(__state& __s) const { if (__mexp_ > __s.__sub_matches_.size()) __throw_regex_error(); sub_match& __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 __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_HIDE_FROM_ABI explicit __back_ref_icase(const _Traits& __traits, unsigned __mexp, __node<_CharT>* __s) : base(__s), __traits_(__traits), __mexp_(__mexp) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template void __back_ref_icase<_CharT, _Traits>::__exec(__state& __s) const { sub_match& __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 __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_HIDE_FROM_ABI explicit __back_ref_collate(const _Traits& __traits, unsigned __mexp, __node<_CharT>* __s) : base(__s), __traits_(__traits), __mexp_(__mexp) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template void __back_ref_collate<_CharT, _Traits>::__exec(__state& __s) const { sub_match& __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 __word_boundary : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; _Traits __traits_; bool __invert_; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI explicit __word_boundary(const _Traits& __traits, bool __invert, __node<_CharT>* __s) : base(__s), __traits_(__traits), __invert_(__invert) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template 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; } } // __l_anchor template _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool __is_eol(_CharT __c) { return __c == '\r' || __c == '\n'; } template class __l_anchor_multiline : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; bool __multiline_; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI __l_anchor_multiline(bool __multiline, __node<_CharT>* __s) : base(__s), __multiline_(__multiline) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template void __l_anchor_multiline<_CharT>::__exec(__state& __s) const { if (__s.__at_first_ && __s.__current_ == __s.__first_ && !(__s.__flags_ & regex_constants::match_not_bol)) { __s.__do_ = __state::__accept_but_not_consume; __s.__node_ = this->first(); } else if (__multiline_ && !__s.__at_first_ && std::__is_eol(*std::prev(__s.__current_))) { __s.__do_ = __state::__accept_but_not_consume; __s.__node_ = this->first(); } else { __s.__do_ = __state::__reject; __s.__node_ = nullptr; } } // __r_anchor template class __r_anchor_multiline : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; bool __multiline_; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI __r_anchor_multiline(bool __multiline, __node<_CharT>* __s) : base(__s), __multiline_(__multiline) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template void __r_anchor_multiline<_CharT>::__exec(__state& __s) const { if (__s.__current_ == __s.__last_ && !(__s.__flags_ & regex_constants::match_not_eol)) { __s.__do_ = __state::__accept_but_not_consume; __s.__node_ = this->first(); } else if (__multiline_ && std::__is_eol(*__s.__current_)) { __s.__do_ = __state::__accept_but_not_consume; __s.__node_ = this->first(); } else { __s.__do_ = __state::__reject; __s.__node_ = nullptr; } } // __match_any template class __match_any : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI __match_any(__node<_CharT>* __s) : base(__s) {} _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template 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 __match_any_but_newline : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI __match_any_but_newline(__node<_CharT>* __s) : base(__s) {} void __exec(__state&) const override; }; template <> _LIBCPP_EXPORTED_FROM_ABI void __match_any_but_newline::__exec(__state&) const; #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS template <> _LIBCPP_EXPORTED_FROM_ABI void __match_any_but_newline::__exec(__state&) const; #endif // __match_char template class __match_char : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; _CharT __c_; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI __match_char(_CharT __c, __node<_CharT>* __s) : base(__s), __c_(__c) {} __match_char(const __match_char&) = delete; __match_char& operator=(const __match_char&) = delete; _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template 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 __match_char_icase : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; _Traits __traits_; _CharT __c_; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI __match_char_icase(const _Traits& __traits, _CharT __c, __node<_CharT>* __s) : base(__s), __traits_(__traits), __c_(__traits.translate_nocase(__c)) {} __match_char_icase(const __match_char_icase&) = delete; __match_char_icase& operator=(const __match_char_icase&) = delete; _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template 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 __match_char_collate : public __owns_one_state<_CharT> { typedef __owns_one_state<_CharT> base; _Traits __traits_; _CharT __c_; public: typedef std::__state<_CharT> __state; _LIBCPP_HIDE_FROM_ABI __match_char_collate(const _Traits& __traits, _CharT __c, __node<_CharT>* __s) : base(__s), __traits_(__traits), __c_(__traits.translate(__c)) {} __match_char_collate(const __match_char_collate&) = delete; __match_char_collate& operator=(const __match_char_collate&) = delete; _LIBCPP_HIDE_FROM_ABI_VIRTUAL virtual void __exec(__state&) const; }; template