31namespace std _GLIBCXX_VISIBILITY(default)
35_GLIBCXX_BEGIN_NAMESPACE_VERSION
42 template<
typename,
bool,
bool>
43 struct _BracketMatcher;
50 template<
typename _TraitsT>
54 typedef typename _TraitsT::char_type _CharT;
55 typedef const _CharT* _IterT;
60 const typename _TraitsT::locale_type& __traits,
_FlagT __flags);
64 {
return std::move(_M_nfa); }
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);
121 template<
bool __icase,
bool __collate>
136 auto ret = _M_stack.
top();
142 _ScannerT _M_scanner;
146 const _TraitsT& _M_traits;
150 template<
typename _Tp>
153 template<
typename _Ch,
typename _Tr,
typename _Alloc>
158 template<
typename _Tp,
typename _Alloc>
159 struct __has_contiguous_iter<
std::vector<_Tp, _Alloc>>
163 template<
typename _Tp>
166 template<
typename _CharT>
169 template<
typename _Tp,
typename _Cont>
171 __is_contiguous_normal_iter<__gnu_cxx::__normal_iterator<_Tp, _Cont>>
172 : __has_contiguous_iter<_Cont>::type
175 template<
typename _Iter,
typename _TraitsT>
176 using __enable_if_contiguous_normal_iter
177 =
typename enable_if< __is_contiguous_normal_iter<_Iter>::value,
180 template<
typename _Iter,
typename _TraitsT>
181 using __disable_if_contiguous_normal_iter
182 =
typename enable_if< !__is_contiguous_normal_iter<_Iter>::value,
185 template<
typename _FwdIter,
typename _TraitsT>
186 inline __enable_if_contiguous_normal_iter<_FwdIter, _TraitsT>
187 __compile_nfa(_FwdIter __first, _FwdIter __last,
188 const typename _TraitsT::locale_type& __loc,
191 size_t __len = __last - __first;
193 using _Cmplr = _Compiler<_TraitsT>;
194 return _Cmplr(__cfirst, __cfirst + __len, __loc, __flags)._M_get_nfa();
197 template<
typename _FwdIter,
typename _TraitsT>
198 inline __disable_if_contiguous_normal_iter<_FwdIter, _TraitsT>
199 __compile_nfa(_FwdIter __first, _FwdIter __last,
200 const typename _TraitsT::locale_type& __loc,
203 using char_type =
typename _TraitsT::char_type;
204 const basic_string<char_type> __str(__first, __last);
205 return __compile_nfa<const char_type*, _TraitsT>(__str.data(),
206 __str.data() + __str.size(), __loc, __flags);
210 template<
typename _TraitsT,
bool __icase,
bool __collate>
211 class _RegexTranslator
214 typedef typename _TraitsT::char_type _CharT;
215 typedef typename _TraitsT::string_type _StringT;
216 typedef typename std::conditional<__collate,
218 _CharT>::type _StrTransT;
221 _RegexTranslator(
const _TraitsT& __traits)
222 : _M_traits(__traits)
226 _M_translate(_CharT __ch)
const
229 return _M_traits.translate_nocase(__ch);
231 return _M_traits.translate(__ch);
237 _M_transform(_CharT __ch)
const
239 return _M_transform_impl(__ch,
typename integral_constant<
bool,
245 _M_transform_impl(_CharT __ch,
false_type)
const
249 _M_transform_impl(_CharT __ch,
true_type)
const
251 _StrTransT __str = _StrTransT(1, _M_translate(__ch));
252 return _M_traits.transform(__str.begin(), __str.end());
255 const _TraitsT& _M_traits;
258 template<
typename _TraitsT>
259 class _RegexTranslator<_TraitsT, false, false>
262 typedef typename _TraitsT::char_type _CharT;
263 typedef _CharT _StrTransT;
266 _RegexTranslator(
const _TraitsT&)
270 _M_translate(_CharT __ch)
const
274 _M_transform(_CharT __ch)
const
278 template<
typename _TraitsT,
bool __is_ecma,
bool __icase,
bool __collate>
281 template<
typename _TraitsT,
bool __icase,
bool __collate>
282 struct _AnyMatcher<_TraitsT, false, __icase, __collate>
284 typedef _RegexTranslator<_TraitsT, __icase, __collate> _TransT;
285 typedef typename _TransT::_CharT _CharT;
288 _AnyMatcher(
const _TraitsT& __traits)
289 : _M_translator(__traits)
293 operator()(_CharT __ch)
const
295 static auto __nul = _M_translator._M_translate(
'\0');
296 return _M_translator._M_translate(__ch) != __nul;
299 _TransT _M_translator;
302 template<
typename _TraitsT,
bool __icase,
bool __collate>
303 struct _AnyMatcher<_TraitsT, true, __icase, __collate>
305 typedef _RegexTranslator<_TraitsT, __icase, __collate> _TransT;
306 typedef typename _TransT::_CharT _CharT;
309 _AnyMatcher(
const _TraitsT& __traits)
310 : _M_translator(__traits)
314 operator()(_CharT __ch)
const
315 {
return _M_apply(__ch,
typename is_same<_CharT, char>::type()); }
320 auto __c = _M_translator._M_translate(__ch);
321 auto __n = _M_translator._M_translate(
'\n');
322 auto __r = _M_translator._M_translate(
'\r');
323 return __c != __n && __c != __r;
329 auto __c = _M_translator._M_translate(__ch);
330 auto __n = _M_translator._M_translate(
'\n');
331 auto __r = _M_translator._M_translate(
'\r');
332 auto __u2028 = _M_translator._M_translate(u
'\u2028');
333 auto __u2029 = _M_translator._M_translate(u
'\u2029');
334 return __c != __n && __c != __r && __c != __u2028 && __c != __u2029;
337 _TransT _M_translator;
340 template<
typename _TraitsT,
bool __icase,
bool __collate>
343 typedef _RegexTranslator<_TraitsT, __icase, __collate> _TransT;
344 typedef typename _TransT::_CharT _CharT;
346 _CharMatcher(_CharT __ch,
const _TraitsT& __traits)
347 : _M_translator(__traits), _M_ch(_M_translator._M_translate(__ch))
351 operator()(_CharT __ch)
const
352 {
return _M_ch == _M_translator._M_translate(__ch); }
354 _TransT _M_translator;
359 template<
typename _TraitsT,
bool __icase,
bool __collate>
364 typedef typename _TransT::_CharT _CharT;
365 typedef typename _TransT::_StrTransT _StrTransT;
366 typedef typename _TraitsT::string_type _StringT;
367 typedef typename _TraitsT::char_class_type _CharClassT;
371 const _TraitsT& __traits)
372 : _M_class_set(0), _M_translator(__traits), _M_traits(__traits),
377 operator()(_CharT
__ch)
const
380 return _M_apply(
__ch, _UseCache());
384 _M_add_char(_CharT __c)
386 _M_char_set.
push_back(_M_translator._M_translate(__c));
391 _M_add_collate_element(
const _StringT&
__s)
393 auto __st = _M_traits.lookup_collatename(
__s.data(),
397 "Invalid collate element.");
404 _M_add_equivalence_class(
const _StringT&
__s)
406 auto __st = _M_traits.lookup_collatename(
__s.data(),
410 "Invalid equivalence class.");
411 __st = _M_traits.transform_primary(
__st.data(),
419 _M_add_character_class(
const _StringT&
__s,
bool __neg)
421 auto __mask = _M_traits.lookup_classname(
__s.data(),
426 "Invalid character class.");
435 _M_make_range(_CharT
__l, _CharT __r)
439 "Invalid range in bracket expression.");
440 _M_range_set.push_back(
make_pair(_M_translator._M_transform(
__l),
441 _M_translator._M_transform(__r)));
448 std::sort(_M_char_set.
begin(), _M_char_set.
end());
449 auto __end = std::unique(_M_char_set.
begin(), _M_char_set.
end());
450 _M_char_set.
erase(__end, _M_char_set.
end());
451 _M_make_cache(_UseCache());
457 typedef typename std::is_same<_CharT, char>::type _UseCache;
459 static constexpr size_t
462 return 1ul << (
sizeof(_CharT) *
__CHAR_BIT__ *
int(_UseCache::value));
466 typedef typename std::conditional<_UseCache::value,
468 _Dummy>::type _CacheT;
469 typedef typename std::make_unsigned<_CharT>::type _UnsignedCharT;
476 {
return _M_cache[
static_cast<_UnsignedCharT
>(
__ch)]; }
481 for (
unsigned __i = 0; __i < _M_cache.size(); __i++)
482 _M_cache[__i] = _M_apply(
static_cast<_CharT
>(__i),
false_type());
494 _CharClassT _M_class_set;
495 _TransT _M_translator;
496 const _TraitsT& _M_traits;
497 bool _M_is_non_matching;
505_GLIBCXX_END_NAMESPACE_VERSION
integral_constant< bool, true > true_type
The type used as a compile-time boolean with true value.
integral_constant< bool, false > false_type
The type used as a compile-time boolean with false value.
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.
_Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
constexpr error_type error_range(_S_error_range)
syntax_option_type
This is a bitmask type indicating how to interpret the regex.
constexpr error_type error_collate(_S_error_collate)
ISO C++ entities toplevel namespace is std.
The bitset class represents a fixed-size sequence of bits.
Managing sequences of characters and character-like objects.
Matches a character range (bracket expression)
Builds an NFA from an input iterator range.
void pop()
Removes first element.
iterator erase(const_iterator __position)
Remove element at given position.
void push_back(const value_type &__x)
Add data to the end of the vector.
iterator begin() noexcept