31 namespace std _GLIBCXX_VISIBILITY(default)
35 _GLIBCXX_BEGIN_NAMESPACE_VERSION
42 template<
typename,
bool,
bool>
50 template<
typename _TraitsT>
54 typedef typename _TraitsT::char_type _CharT;
55 typedef const _CharT* _IterT;
56 typedef _NFA<_TraitsT> _RegexT;
60 const typename _TraitsT::locale_type& __traits, _FlagT __flags);
68 typedef typename _TraitsT::string_type _StringT;
69 typedef typename _ScannerT::_TokenT _TokenT;
76 _M_match_token(_TokenT __token);
97 _M_bracket_expression();
99 template<
bool __icase,
bool __collate>
101 _M_insert_any_matcher_ecma();
103 template<
bool __icase,
bool __collate>
105 _M_insert_any_matcher_posix();
107 template<
bool __icase,
bool __collate>
109 _M_insert_char_matcher();
111 template<
bool __icase,
bool __collate>
113 _M_insert_character_class_matcher();
115 template<
bool __icase,
bool __collate>
117 _M_insert_bracket_matcher(
bool __neg);
119 template<
bool __icase,
bool __collate>
126 _M_cur_int_value(
int __radix);
134 auto ret = _M_stack.
top();
140 _ScannerT _M_scanner;
144 const _TraitsT& _M_traits;
145 const _CtypeT& _M_ctype;
148 template<
typename _Tp>
149 struct __has_contiguous_iter : std::false_type { };
151 template<
typename _Ch,
typename _Tr,
typename _Alloc>
156 template<
typename _Tp,
typename _Alloc>
157 struct __has_contiguous_iter<
std::vector<_Tp, _Alloc>>
161 template<
typename _Tp>
162 struct __is_contiguous_normal_iter : std::false_type { };
164 template<
typename _CharT>
165 struct __is_contiguous_normal_iter<_CharT*> : std::true_type { };
167 template<
typename _Tp,
typename _Cont>
169 __is_contiguous_normal_iter<__gnu_cxx::__normal_iterator<_Tp, _Cont>>
170 : __has_contiguous_iter<_Cont>::type
173 template<
typename _Iter,
typename _TraitsT>
174 using __enable_if_contiguous_normal_iter
175 =
typename enable_if< __is_contiguous_normal_iter<_Iter>::value,
178 template<
typename _Iter,
typename _TraitsT>
179 using __disable_if_contiguous_normal_iter
180 =
typename enable_if< !__is_contiguous_normal_iter<_Iter>::value,
183 template<
typename _FwdIter,
typename _TraitsT>
184 inline __enable_if_contiguous_normal_iter<_FwdIter, _TraitsT>
185 __compile_nfa(_FwdIter __first, _FwdIter __last,
186 const typename _TraitsT::locale_type& __loc,
189 size_t __len = __last - __first;
191 using _Cmplr = _Compiler<_TraitsT>;
192 return _Cmplr(__cfirst, __cfirst + __len, __loc, __flags)._M_get_nfa();
195 template<
typename _FwdIter,
typename _TraitsT>
196 inline __disable_if_contiguous_normal_iter<_FwdIter, _TraitsT>
197 __compile_nfa(_FwdIter __first, _FwdIter __last,
198 const typename _TraitsT::locale_type& __loc,
201 basic_string<typename _TraitsT::char_type> __str(__first, __last);
202 return __compile_nfa(__str.data(), __str.data() + __str.size(), __loc,
207 template<
typename _TraitsT,
bool __icase,
bool __collate>
208 class _RegexTranslator
211 typedef typename _TraitsT::char_type _CharT;
212 typedef typename _TraitsT::string_type _StringT;
213 typedef typename std::conditional<__collate,
215 _CharT>::type _StrTransT;
218 _RegexTranslator(
const _TraitsT& __traits)
219 : _M_traits(__traits)
223 _M_translate(_CharT __ch)
const
226 return _M_traits.translate_nocase(__ch);
228 return _M_traits.translate(__ch);
234 _M_transform(_CharT __ch)
const
236 return _M_transform_impl(__ch,
typename integral_constant<
bool,
242 _M_transform_impl(_CharT __ch, false_type)
const
246 _M_transform_impl(_CharT __ch, true_type)
const
248 _StrTransT __str = _StrTransT(1, _M_translate(__ch));
249 return _M_traits.transform(__str.begin(), __str.end());
252 const _TraitsT& _M_traits;
255 template<
typename _TraitsT>
256 class _RegexTranslator<_TraitsT, false, false>
259 typedef typename _TraitsT::char_type _CharT;
260 typedef _CharT _StrTransT;
263 _RegexTranslator(
const _TraitsT&)
267 _M_translate(_CharT __ch)
const
271 _M_transform(_CharT __ch)
const
275 template<
typename _TraitsT,
bool __is_ecma,
bool __icase,
bool __collate>
278 template<
typename _TraitsT,
bool __icase,
bool __collate>
279 struct _AnyMatcher<_TraitsT, false, __icase, __collate>
281 typedef _RegexTranslator<_TraitsT, __icase, __collate> _TransT;
282 typedef typename _TransT::_CharT _CharT;
285 _AnyMatcher(
const _TraitsT& __traits)
286 : _M_translator(__traits)
290 operator()(_CharT __ch)
const
292 static auto __nul = _M_translator._M_translate(
'\0');
293 return _M_translator._M_translate(__ch) != __nul;
296 _TransT _M_translator;
299 template<
typename _TraitsT,
bool __icase,
bool __collate>
300 struct _AnyMatcher<_TraitsT, true, __icase, __collate>
302 typedef _RegexTranslator<_TraitsT, __icase, __collate> _TransT;
303 typedef typename _TransT::_CharT _CharT;
306 _AnyMatcher(
const _TraitsT& __traits)
307 : _M_translator(__traits)
311 operator()(_CharT __ch)
const
312 {
return _M_apply(__ch,
typename is_same<_CharT, char>::type()); }
315 _M_apply(_CharT __ch, true_type)
const
317 auto __c = _M_translator._M_translate(__ch);
318 auto __n = _M_translator._M_translate(
'\n');
319 auto __r = _M_translator._M_translate(
'\r');
320 return __c != __n && __c != __r;
324 _M_apply(_CharT __ch, false_type)
const
326 auto __c = _M_translator._M_translate(__ch);
327 auto __n = _M_translator._M_translate(
'\n');
328 auto __r = _M_translator._M_translate(
'\r');
329 auto __u2028 = _M_translator._M_translate(u
'\u2028');
330 auto __u2029 = _M_translator._M_translate(u
'\u2029');
331 return __c != __n && __c != __r && __c != __u2028 && __c != __u2029;
334 _TransT _M_translator;
337 template<
typename _TraitsT,
bool __icase,
bool __collate>
340 typedef _RegexTranslator<_TraitsT, __icase, __collate> _TransT;
341 typedef typename _TransT::_CharT _CharT;
343 _CharMatcher(_CharT __ch,
const _TraitsT& __traits)
344 : _M_translator(__traits), _M_ch(_M_translator._M_translate(__ch))
348 operator()(_CharT __ch)
const
349 {
return _M_ch == _M_translator._M_translate(__ch); }
351 _TransT _M_translator;
356 template<
typename _TraitsT,
bool __icase,
bool __collate>
357 struct _BracketMatcher
360 typedef _RegexTranslator<_TraitsT, __icase, __collate> _TransT;
361 typedef typename _TransT::_CharT _CharT;
362 typedef typename _TransT::_StrTransT _StrTransT;
363 typedef typename _TraitsT::string_type _StringT;
364 typedef typename _TraitsT::char_class_type _CharClassT;
367 _BracketMatcher(
bool __is_non_matching,
368 const _TraitsT& __traits)
369 : _M_class_set(0), _M_translator(__traits), _M_traits(__traits),
370 _M_is_non_matching(__is_non_matching)
371 #ifdef _GLIBCXX_DEBUG
377 operator()(_CharT __ch)
const
379 _GLIBCXX_DEBUG_ASSERT(_M_is_ready);
380 return _M_apply(__ch, _UseCache());
384 _M_add_char(_CharT __c)
386 _M_char_set.
push_back(_M_translator._M_translate(__c));
387 #ifdef _GLIBCXX_DEBUG
393 _M_add_collating_element(
const _StringT& __s)
395 auto __st = _M_traits.lookup_collatename(__s.data(),
396 __s.data() + __s.size());
399 _M_char_set.
push_back(_M_translator._M_translate(__st[0]));
400 #ifdef _GLIBCXX_DEBUG
406 _M_add_equivalence_class(
const _StringT& __s)
408 auto __st = _M_traits.lookup_collatename(__s.data(),
409 __s.data() + __s.size());
412 __st = _M_traits.transform_primary(__st.data(),
413 __st.data() + __st.size());
415 #ifdef _GLIBCXX_DEBUG
422 _M_add_character_class(
const _StringT& __s,
bool __neg)
424 auto __mask = _M_traits.lookup_classname(__s.data(),
425 __s.data() + __s.size(),
430 _M_class_set |= __mask;
433 #ifdef _GLIBCXX_DEBUG
439 _M_make_range(_CharT __l, _CharT __r)
443 _M_range_set.push_back(
make_pair(_M_translator._M_transform(__l),
444 _M_translator._M_transform(__r)));
445 #ifdef _GLIBCXX_DEBUG
455 _M_char_set.
erase(__end, _M_char_set.
end());
456 _M_make_cache(_UseCache());
457 #ifdef _GLIBCXX_DEBUG
464 typedef typename std::is_same<_CharT, char>::type _UseCache;
466 static constexpr
size_t
469 return 1ul << (
sizeof(_CharT) * __CHAR_BIT__ *
int(_UseCache::value));
473 typedef typename std::conditional<_UseCache::value,
474 std::bitset<_S_cache_size()>,
475 _Dummy>::type _CacheT;
476 typedef typename std::make_unsigned<_CharT>::type _UnsignedCharT;
479 _M_apply(_CharT __ch, false_type)
const;
482 _M_apply(_CharT __ch, true_type)
const
483 {
return _M_cache[
static_cast<_UnsignedCharT
>(__ch)]; }
486 _M_make_cache(true_type)
488 for (
unsigned __i = 0; __i < _M_cache.size(); __i++)
489 _M_cache[__i] = _M_apply(static_cast<_CharT>(__i), false_type());
493 _M_make_cache(false_type)
501 _CharClassT _M_class_set;
502 _TransT _M_translator;
503 const _TraitsT& _M_traits;
504 bool _M_is_non_matching;
506 #ifdef _GLIBCXX_DEBUG
512 _GLIBCXX_END_NAMESPACE_VERSION
516 #include <bits/regex_compiler.tcc>
Managing sequences of characters and character-like objects.
constexpr error_type error_collate(_S_error_collate)
iterator begin() noexcept
void push_back(const value_type &__x)
Add data to the end of the vector.
Primary class template ctype facet.This template class defines classification and conversion function...
constexpr error_type error_range(_S_error_range)
Builds an NFA from an input iterator range.
void sort(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp)
Sort the elements of a sequence using a predicate for comparison.
Scans an input range for regex tokens.
Matches a character range (bracket expression)
_ForwardIterator unique(_ForwardIterator __first, _ForwardIterator __last, _BinaryPredicate __binary_pred)
Remove consecutive values from a sequence using a predicate.
syntax_option_type
This is a bitmask type indicating how to interpret the regex.
Struct holding two objects of arbitrary type.
iterator erase(const_iterator __position)
Remove element at given position.
void pop()
Removes first element.
constexpr pair< typename __decay_and_strip< _T1 >::__type, typename __decay_and_strip< _T2 >::__type > make_pair(_T1 &&__x, _T2 &&__y)
A convenience wrapper for creating a pair from two objects.
constexpr error_type error_ctype(_S_error_ctype)
_Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
Describes a sequence of one or more _State, its current start and end(s). This structure contains fra...
ISO C++ entities toplevel namespace is std.
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
A smart pointer with reference-counted copy semantics.